From e3dbdcbdff5ef03c41bef1ec3997256703d4621a Mon Sep 17 00:00:00 2001 From: Ben Date: Fri, 21 Feb 2020 19:04:04 +0100 Subject: [PATCH] HTTP_C::Implement Context::MakeRequest (#4754) * HTTP_C::Implement Context::MakeRequest * httplib: Add add_client_cert_ASN1 and set_verify * HTTP_C: Fix request methode strings case in MakeRequest * HTTP_C: clang-format and cleanups * HTTP_C: Add comment about async in BeginRequest and BeginRequestAsync * Update httplib to contain all the changes we need; adapt http_c and web_services to the changes in httplib; addressed minor review comments * Add android-ifaddrs --- externals/CMakeLists.txt | 5 + externals/android-ifaddrs/CMakeLists.txt | 8 + externals/android-ifaddrs/ifaddrs.c | 600 +++ externals/android-ifaddrs/ifaddrs.h | 54 + externals/httplib/README.md | 3 +- externals/httplib/httplib.h | 6186 +++++++++++++++------- src/core/CMakeLists.txt | 12 +- src/core/hle/service/http_c.cpp | 106 +- src/core/hle/service/http_c.h | 19 +- src/web_service/CMakeLists.txt | 3 + src/web_service/web_backend.cpp | 11 +- 11 files changed, 5103 insertions(+), 1904 deletions(-) create mode 100644 externals/android-ifaddrs/CMakeLists.txt create mode 100644 externals/android-ifaddrs/ifaddrs.c create mode 100644 externals/android-ifaddrs/ifaddrs.h diff --git a/externals/CMakeLists.txt b/externals/CMakeLists.txt index 63159a52b..2aeaa5688 100644 --- a/externals/CMakeLists.txt +++ b/externals/CMakeLists.txt @@ -96,9 +96,14 @@ if (ENABLE_WEB_SERVICE) # lurlparser add_subdirectory(lurlparser EXCLUDE_FROM_ALL) + if(ANDROID) + add_subdirectory(android-ifaddrs) + endif() + # httplib add_library(httplib INTERFACE) target_include_directories(httplib INTERFACE ./httplib) + target_compile_options(httplib INTERFACE -DCPPHTTPLIB_OPENSSL_SUPPORT) # cpp-jwt add_library(cpp-jwt INTERFACE) diff --git a/externals/android-ifaddrs/CMakeLists.txt b/externals/android-ifaddrs/CMakeLists.txt new file mode 100644 index 000000000..25f243679 --- /dev/null +++ b/externals/android-ifaddrs/CMakeLists.txt @@ -0,0 +1,8 @@ +add_library(ifaddrs + ifaddrs.c + ifaddrs.h +) + +create_target_directory_groups(ifaddrs) + +target_include_directories(ifaddrs INTERFACE ${CMAKE_CURRENT_SOURCE_DIR}) diff --git a/externals/android-ifaddrs/ifaddrs.c b/externals/android-ifaddrs/ifaddrs.c new file mode 100644 index 000000000..3a3878a68 --- /dev/null +++ b/externals/android-ifaddrs/ifaddrs.c @@ -0,0 +1,600 @@ +/* +Copyright (c) 2013, Kenneth MacKay +All rights reserved. + +Redistribution and use in source and binary forms, with or without modification, +are permitted provided that the following conditions are met: + * Redistributions of source code must retain the above copyright notice, this + list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright notice, + this list of conditions and the following disclaimer in the documentation + and/or other materials provided with the distribution. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR +ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; +LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON +ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#include "ifaddrs.h" + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +typedef struct NetlinkList +{ + struct NetlinkList *m_next; + struct nlmsghdr *m_data; + unsigned int m_size; +} NetlinkList; + +static int netlink_socket(void) +{ + int l_socket = socket(PF_NETLINK, SOCK_RAW, NETLINK_ROUTE); + if(l_socket < 0) + { + return -1; + } + + struct sockaddr_nl l_addr; + memset(&l_addr, 0, sizeof(l_addr)); + l_addr.nl_family = AF_NETLINK; + if(bind(l_socket, (struct sockaddr *)&l_addr, sizeof(l_addr)) < 0) + { + close(l_socket); + return -1; + } + + return l_socket; +} + +static int netlink_send(int p_socket, int p_request) +{ + char l_buffer[NLMSG_ALIGN(sizeof(struct nlmsghdr)) + NLMSG_ALIGN(sizeof(struct rtgenmsg))]; + memset(l_buffer, 0, sizeof(l_buffer)); + struct nlmsghdr *l_hdr = (struct nlmsghdr *)l_buffer; + struct rtgenmsg *l_msg = (struct rtgenmsg *)NLMSG_DATA(l_hdr); + + l_hdr->nlmsg_len = NLMSG_LENGTH(sizeof(*l_msg)); + l_hdr->nlmsg_type = p_request; + l_hdr->nlmsg_flags = NLM_F_ROOT | NLM_F_MATCH | NLM_F_REQUEST; + l_hdr->nlmsg_pid = 0; + l_hdr->nlmsg_seq = p_socket; + l_msg->rtgen_family = AF_UNSPEC; + + struct sockaddr_nl l_addr; + memset(&l_addr, 0, sizeof(l_addr)); + l_addr.nl_family = AF_NETLINK; + return (sendto(p_socket, l_hdr, l_hdr->nlmsg_len, 0, (struct sockaddr *)&l_addr, sizeof(l_addr))); +} + +static int netlink_recv(int p_socket, void *p_buffer, size_t p_len) +{ + struct msghdr l_msg; + struct iovec l_iov = { p_buffer, p_len }; + struct sockaddr_nl l_addr; + int l_result; + + for(;;) + { + l_msg.msg_name = (void *)&l_addr; + l_msg.msg_namelen = sizeof(l_addr); + l_msg.msg_iov = &l_iov; + l_msg.msg_iovlen = 1; + l_msg.msg_control = NULL; + l_msg.msg_controllen = 0; + l_msg.msg_flags = 0; + int l_result = recvmsg(p_socket, &l_msg, 0); + + if(l_result < 0) + { + if(errno == EINTR) + { + continue; + } + return -2; + } + + if(l_msg.msg_flags & MSG_TRUNC) + { // buffer was too small + return -1; + } + return l_result; + } +} + +static struct nlmsghdr *getNetlinkResponse(int p_socket, int *p_size, int *p_done) +{ + size_t l_size = 4096; + void *l_buffer = NULL; + + for(;;) + { + free(l_buffer); + l_buffer = malloc(l_size); + + int l_read = netlink_recv(p_socket, l_buffer, l_size); + *p_size = l_read; + if(l_read == -2) + { + free(l_buffer); + return NULL; + } + if(l_read >= 0) + { + pid_t l_pid = getpid(); + struct nlmsghdr *l_hdr; + for(l_hdr = (struct nlmsghdr *)l_buffer; NLMSG_OK(l_hdr, (unsigned int)l_read); l_hdr = (struct nlmsghdr *)NLMSG_NEXT(l_hdr, l_read)) + { + if((pid_t)l_hdr->nlmsg_pid != l_pid || (int)l_hdr->nlmsg_seq != p_socket) + { + continue; + } + + if(l_hdr->nlmsg_type == NLMSG_DONE) + { + *p_done = 1; + break; + } + + if(l_hdr->nlmsg_type == NLMSG_ERROR) + { + free(l_buffer); + return NULL; + } + } + return l_buffer; + } + + l_size *= 2; + } +} + +static NetlinkList *newListItem(struct nlmsghdr *p_data, unsigned int p_size) +{ + NetlinkList *l_item = malloc(sizeof(NetlinkList)); + l_item->m_next = NULL; + l_item->m_data = p_data; + l_item->m_size = p_size; + return l_item; +} + +static void freeResultList(NetlinkList *p_list) +{ + NetlinkList *l_cur; + while(p_list) + { + l_cur = p_list; + p_list = p_list->m_next; + free(l_cur->m_data); + free(l_cur); + } +} + +static NetlinkList *getResultList(int p_socket, int p_request) +{ + if(netlink_send(p_socket, p_request) < 0) + { + return NULL; + } + + NetlinkList *l_list = NULL; + NetlinkList *l_end = NULL; + int l_size; + int l_done = 0; + while(!l_done) + { + struct nlmsghdr *l_hdr = getNetlinkResponse(p_socket, &l_size, &l_done); + if(!l_hdr) + { // error + freeResultList(l_list); + return NULL; + } + + NetlinkList *l_item = newListItem(l_hdr, l_size); + if(!l_list) + { + l_list = l_item; + } + else + { + l_end->m_next = l_item; + } + l_end = l_item; + } + return l_list; +} + +static size_t maxSize(size_t a, size_t b) +{ + return (a > b ? a : b); +} + +static size_t calcAddrLen(sa_family_t p_family, int p_dataSize) +{ + switch(p_family) + { + case AF_INET: + return sizeof(struct sockaddr_in); + case AF_INET6: + return sizeof(struct sockaddr_in6); + case AF_PACKET: + return maxSize(sizeof(struct sockaddr_ll), offsetof(struct sockaddr_ll, sll_addr) + p_dataSize); + default: + return maxSize(sizeof(struct sockaddr), offsetof(struct sockaddr, sa_data) + p_dataSize); + } +} + +static void makeSockaddr(sa_family_t p_family, struct sockaddr *p_dest, void *p_data, size_t p_size) +{ + switch(p_family) + { + case AF_INET: + memcpy(&((struct sockaddr_in*)p_dest)->sin_addr, p_data, p_size); + break; + case AF_INET6: + memcpy(&((struct sockaddr_in6*)p_dest)->sin6_addr, p_data, p_size); + break; + case AF_PACKET: + memcpy(((struct sockaddr_ll*)p_dest)->sll_addr, p_data, p_size); + ((struct sockaddr_ll*)p_dest)->sll_halen = p_size; + break; + default: + memcpy(p_dest->sa_data, p_data, p_size); + break; + } + p_dest->sa_family = p_family; +} + +static void addToEnd(struct ifaddrs **p_resultList, struct ifaddrs *p_entry) +{ + if(!*p_resultList) + { + *p_resultList = p_entry; + } + else + { + struct ifaddrs *l_cur = *p_resultList; + while(l_cur->ifa_next) + { + l_cur = l_cur->ifa_next; + } + l_cur->ifa_next = p_entry; + } +} + +static void interpretLink(struct nlmsghdr *p_hdr, struct ifaddrs **p_links, struct ifaddrs **p_resultList) +{ + struct ifinfomsg *l_info = (struct ifinfomsg *)NLMSG_DATA(p_hdr); + + size_t l_nameSize = 0; + size_t l_addrSize = 0; + size_t l_dataSize = 0; + + size_t l_rtaSize = NLMSG_PAYLOAD(p_hdr, sizeof(struct ifinfomsg)); + struct rtattr *l_rta; + for(l_rta = (struct rtattr *)(((char *)l_info) + NLMSG_ALIGN(sizeof(struct ifinfomsg))); RTA_OK(l_rta, l_rtaSize); l_rta = RTA_NEXT(l_rta, l_rtaSize)) + { + void *l_rtaData = RTA_DATA(l_rta); + size_t l_rtaDataSize = RTA_PAYLOAD(l_rta); + switch(l_rta->rta_type) + { + case IFLA_ADDRESS: + case IFLA_BROADCAST: + l_addrSize += NLMSG_ALIGN(calcAddrLen(AF_PACKET, l_rtaDataSize)); + break; + case IFLA_IFNAME: + l_nameSize += NLMSG_ALIGN(l_rtaSize + 1); + break; + case IFLA_STATS: + l_dataSize += NLMSG_ALIGN(l_rtaSize); + break; + default: + break; + } + } + + struct ifaddrs *l_entry = malloc(sizeof(struct ifaddrs) + l_nameSize + l_addrSize + l_dataSize); + memset(l_entry, 0, sizeof(struct ifaddrs)); + l_entry->ifa_name = ""; + + char *l_name = ((char *)l_entry) + sizeof(struct ifaddrs); + char *l_addr = l_name + l_nameSize; + char *l_data = l_addr + l_addrSize; + + l_entry->ifa_flags = l_info->ifi_flags; + + l_rtaSize = NLMSG_PAYLOAD(p_hdr, sizeof(struct ifinfomsg)); + for(l_rta = (struct rtattr *)(((char *)l_info) + NLMSG_ALIGN(sizeof(struct ifinfomsg))); RTA_OK(l_rta, l_rtaSize); l_rta = RTA_NEXT(l_rta, l_rtaSize)) + { + void *l_rtaData = RTA_DATA(l_rta); + size_t l_rtaDataSize = RTA_PAYLOAD(l_rta); + switch(l_rta->rta_type) + { + case IFLA_ADDRESS: + case IFLA_BROADCAST: + { + size_t l_addrLen = calcAddrLen(AF_PACKET, l_rtaDataSize); + makeSockaddr(AF_PACKET, (struct sockaddr *)l_addr, l_rtaData, l_rtaDataSize); + ((struct sockaddr_ll *)l_addr)->sll_ifindex = l_info->ifi_index; + ((struct sockaddr_ll *)l_addr)->sll_hatype = l_info->ifi_type; + if(l_rta->rta_type == IFLA_ADDRESS) + { + l_entry->ifa_addr = (struct sockaddr *)l_addr; + } + else + { + l_entry->ifa_broadaddr = (struct sockaddr *)l_addr; + } + l_addr += NLMSG_ALIGN(l_addrLen); + break; + } + case IFLA_IFNAME: + strncpy(l_name, l_rtaData, l_rtaDataSize); + l_name[l_rtaDataSize] = '\0'; + l_entry->ifa_name = l_name; + break; + case IFLA_STATS: + memcpy(l_data, l_rtaData, l_rtaDataSize); + l_entry->ifa_data = l_data; + break; + default: + break; + } + } + + addToEnd(p_resultList, l_entry); + p_links[l_info->ifi_index - 1] = l_entry; +} + +static void interpretAddr(struct nlmsghdr *p_hdr, struct ifaddrs **p_links, struct ifaddrs **p_resultList) +{ + struct ifaddrmsg *l_info = (struct ifaddrmsg *)NLMSG_DATA(p_hdr); + + size_t l_nameSize = 0; + size_t l_addrSize = 0; + + int l_addedNetmask = 0; + + size_t l_rtaSize = NLMSG_PAYLOAD(p_hdr, sizeof(struct ifaddrmsg)); + struct rtattr *l_rta; + for(l_rta = (struct rtattr *)(((char *)l_info) + NLMSG_ALIGN(sizeof(struct ifaddrmsg))); RTA_OK(l_rta, l_rtaSize); l_rta = RTA_NEXT(l_rta, l_rtaSize)) + { + void *l_rtaData = RTA_DATA(l_rta); + size_t l_rtaDataSize = RTA_PAYLOAD(l_rta); + if(l_info->ifa_family == AF_PACKET) + { + continue; + } + + switch(l_rta->rta_type) + { + case IFA_ADDRESS: + case IFA_LOCAL: + if((l_info->ifa_family == AF_INET || l_info->ifa_family == AF_INET6) && !l_addedNetmask) + { // make room for netmask + l_addrSize += NLMSG_ALIGN(calcAddrLen(l_info->ifa_family, l_rtaDataSize)); + l_addedNetmask = 1; + } + case IFA_BROADCAST: + l_addrSize += NLMSG_ALIGN(calcAddrLen(l_info->ifa_family, l_rtaDataSize)); + break; + case IFA_LABEL: + l_nameSize += NLMSG_ALIGN(l_rtaSize + 1); + break; + default: + break; + } + } + + struct ifaddrs *l_entry = malloc(sizeof(struct ifaddrs) + l_nameSize + l_addrSize); + memset(l_entry, 0, sizeof(struct ifaddrs)); + l_entry->ifa_name = p_links[l_info->ifa_index - 1]->ifa_name; + + char *l_name = ((char *)l_entry) + sizeof(struct ifaddrs); + char *l_addr = l_name + l_nameSize; + + l_entry->ifa_flags = l_info->ifa_flags | p_links[l_info->ifa_index - 1]->ifa_flags; + + l_rtaSize = NLMSG_PAYLOAD(p_hdr, sizeof(struct ifaddrmsg)); + for(l_rta = (struct rtattr *)(((char *)l_info) + NLMSG_ALIGN(sizeof(struct ifaddrmsg))); RTA_OK(l_rta, l_rtaSize); l_rta = RTA_NEXT(l_rta, l_rtaSize)) + { + void *l_rtaData = RTA_DATA(l_rta); + size_t l_rtaDataSize = RTA_PAYLOAD(l_rta); + switch(l_rta->rta_type) + { + case IFA_ADDRESS: + case IFA_BROADCAST: + case IFA_LOCAL: + { + size_t l_addrLen = calcAddrLen(l_info->ifa_family, l_rtaDataSize); + makeSockaddr(l_info->ifa_family, (struct sockaddr *)l_addr, l_rtaData, l_rtaDataSize); + if(l_info->ifa_family == AF_INET6) + { + if(IN6_IS_ADDR_LINKLOCAL((struct in6_addr *)l_rtaData) || IN6_IS_ADDR_MC_LINKLOCAL((struct in6_addr *)l_rtaData)) + { + ((struct sockaddr_in6 *)l_addr)->sin6_scope_id = l_info->ifa_index; + } + } + + if(l_rta->rta_type == IFA_ADDRESS) + { // apparently in a point-to-point network IFA_ADDRESS contains the dest address and IFA_LOCAL contains the local address + if(l_entry->ifa_addr) + { + l_entry->ifa_dstaddr = (struct sockaddr *)l_addr; + } + else + { + l_entry->ifa_addr = (struct sockaddr *)l_addr; + } + } + else if(l_rta->rta_type == IFA_LOCAL) + { + if(l_entry->ifa_addr) + { + l_entry->ifa_dstaddr = l_entry->ifa_addr; + } + l_entry->ifa_addr = (struct sockaddr *)l_addr; + } + else + { + l_entry->ifa_broadaddr = (struct sockaddr *)l_addr; + } + l_addr += NLMSG_ALIGN(l_addrLen); + break; + } + case IFA_LABEL: + strncpy(l_name, l_rtaData, l_rtaDataSize); + l_name[l_rtaDataSize] = '\0'; + l_entry->ifa_name = l_name; + break; + default: + break; + } + } + + if(l_entry->ifa_addr && (l_entry->ifa_addr->sa_family == AF_INET || l_entry->ifa_addr->sa_family == AF_INET6)) + { + unsigned l_maxPrefix = (l_entry->ifa_addr->sa_family == AF_INET ? 32 : 128); + unsigned l_prefix = (l_info->ifa_prefixlen > l_maxPrefix ? l_maxPrefix : l_info->ifa_prefixlen); + char l_mask[16] = {0}; + unsigned i; + for(i=0; i<(l_prefix/8); ++i) + { + l_mask[i] = 0xff; + } + l_mask[i] = 0xff << (8 - (l_prefix % 8)); + + makeSockaddr(l_entry->ifa_addr->sa_family, (struct sockaddr *)l_addr, l_mask, l_maxPrefix / 8); + l_entry->ifa_netmask = (struct sockaddr *)l_addr; + } + + addToEnd(p_resultList, l_entry); +} + +static void interpret(int p_socket, NetlinkList *p_netlinkList, struct ifaddrs **p_links, struct ifaddrs **p_resultList) +{ + pid_t l_pid = getpid(); + for(; p_netlinkList; p_netlinkList = p_netlinkList->m_next) + { + unsigned int l_nlsize = p_netlinkList->m_size; + struct nlmsghdr *l_hdr; + for(l_hdr = p_netlinkList->m_data; NLMSG_OK(l_hdr, l_nlsize); l_hdr = NLMSG_NEXT(l_hdr, l_nlsize)) + { + if((pid_t)l_hdr->nlmsg_pid != l_pid || (int)l_hdr->nlmsg_seq != p_socket) + { + continue; + } + + if(l_hdr->nlmsg_type == NLMSG_DONE) + { + break; + } + + if(l_hdr->nlmsg_type == RTM_NEWLINK) + { + interpretLink(l_hdr, p_links, p_resultList); + } + else if(l_hdr->nlmsg_type == RTM_NEWADDR) + { + interpretAddr(l_hdr, p_links, p_resultList); + } + } + } +} + +static unsigned countLinks(int p_socket, NetlinkList *p_netlinkList) +{ + unsigned l_links = 0; + pid_t l_pid = getpid(); + for(; p_netlinkList; p_netlinkList = p_netlinkList->m_next) + { + unsigned int l_nlsize = p_netlinkList->m_size; + struct nlmsghdr *l_hdr; + for(l_hdr = p_netlinkList->m_data; NLMSG_OK(l_hdr, l_nlsize); l_hdr = NLMSG_NEXT(l_hdr, l_nlsize)) + { + if((pid_t)l_hdr->nlmsg_pid != l_pid || (int)l_hdr->nlmsg_seq != p_socket) + { + continue; + } + + if(l_hdr->nlmsg_type == NLMSG_DONE) + { + break; + } + + if(l_hdr->nlmsg_type == RTM_NEWLINK) + { + ++l_links; + } + } + } + + return l_links; +} + +int getifaddrs(struct ifaddrs **ifap) +{ + if(!ifap) + { + return -1; + } + *ifap = NULL; + + int l_socket = netlink_socket(); + if(l_socket < 0) + { + return -1; + } + + NetlinkList *l_linkResults = getResultList(l_socket, RTM_GETLINK); + if(!l_linkResults) + { + close(l_socket); + return -1; + } + + NetlinkList *l_addrResults = getResultList(l_socket, RTM_GETADDR); + if(!l_addrResults) + { + close(l_socket); + freeResultList(l_linkResults); + return -1; + } + + unsigned l_numLinks = countLinks(l_socket, l_linkResults) + countLinks(l_socket, l_addrResults); + struct ifaddrs *l_links[l_numLinks]; + memset(l_links, 0, l_numLinks * sizeof(struct ifaddrs *)); + + interpret(l_socket, l_linkResults, l_links, ifap); + interpret(l_socket, l_addrResults, l_links, ifap); + + freeResultList(l_linkResults); + freeResultList(l_addrResults); + close(l_socket); + return 0; +} + +void freeifaddrs(struct ifaddrs *ifa) +{ + struct ifaddrs *l_cur; + while(ifa) + { + l_cur = ifa; + ifa = ifa->ifa_next; + free(l_cur); + } +} \ No newline at end of file diff --git a/externals/android-ifaddrs/ifaddrs.h b/externals/android-ifaddrs/ifaddrs.h new file mode 100644 index 000000000..42d1b37e8 --- /dev/null +++ b/externals/android-ifaddrs/ifaddrs.h @@ -0,0 +1,54 @@ +/* + * Copyright (c) 1995, 1999 + * Berkeley Software Design, Inc. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * THIS SOFTWARE IS PROVIDED BY Berkeley Software Design, Inc. ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL Berkeley Software Design, Inc. BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * BSDI ifaddrs.h,v 2.5 2000/02/23 14:51:59 dab Exp + */ + +#ifndef _IFADDRS_H_ +#define _IFADDRS_H_ + +struct ifaddrs { + struct ifaddrs *ifa_next; + char *ifa_name; + unsigned int ifa_flags; + struct sockaddr *ifa_addr; + struct sockaddr *ifa_netmask; + struct sockaddr *ifa_dstaddr; + void *ifa_data; +}; + +/* + * This may have been defined in . Note that if is + * to be included it must be included before this header file. + */ +#ifndef ifa_broadaddr +#define ifa_broadaddr ifa_dstaddr /* broadcast address interface */ +#endif + +#include + +__BEGIN_DECLS +extern int getifaddrs(struct ifaddrs **ifap); +extern void freeifaddrs(struct ifaddrs *ifa); +__END_DECLS + +#endif \ No newline at end of file diff --git a/externals/httplib/README.md b/externals/httplib/README.md index 0e26522b5..33cbaf183 100644 --- a/externals/httplib/README.md +++ b/externals/httplib/README.md @@ -1,4 +1,4 @@ -From https://github.com/yhirose/cpp-httplib/commit/d9479bc0b12e8a1e8bce2d34da4feeef488581f3 +From https://github.com/yhirose/cpp-httplib/commit/b251668522dd459d2c6a75c10390a11b640be708 MIT License @@ -13,3 +13,4 @@ It's extremely easy to setup. Just include httplib.h file in your code! Inspired by Sinatra and express. © 2017 Yuji Hirose + diff --git a/externals/httplib/httplib.h b/externals/httplib/httplib.h index dd9afe693..ab087b184 100644 --- a/externals/httplib/httplib.h +++ b/externals/httplib/httplib.h @@ -1,73 +1,177 @@ // // httplib.h // -// Copyright (c) 2017 Yuji Hirose. All rights reserved. +// Copyright (c) 2020 Yuji Hirose. All rights reserved. // MIT License // -#ifndef _CPPHTTPLIB_HTTPLIB_H_ -#define _CPPHTTPLIB_HTTPLIB_H_ +#ifndef CPPHTTPLIB_HTTPLIB_H +#define CPPHTTPLIB_HTTPLIB_H + +/* + * Configuration + */ + +#ifndef CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND +#define CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND 5 +#endif + +#ifndef CPPHTTPLIB_KEEPALIVE_TIMEOUT_USECOND +#define CPPHTTPLIB_KEEPALIVE_TIMEOUT_USECOND 0 +#endif + +#ifndef CPPHTTPLIB_KEEPALIVE_MAX_COUNT +#define CPPHTTPLIB_KEEPALIVE_MAX_COUNT 5 +#endif + +#ifndef CPPHTTPLIB_READ_TIMEOUT_SECOND +#define CPPHTTPLIB_READ_TIMEOUT_SECOND 5 +#endif + +#ifndef CPPHTTPLIB_READ_TIMEOUT_USECOND +#define CPPHTTPLIB_READ_TIMEOUT_USECOND 0 +#endif + +#ifndef CPPHTTPLIB_REQUEST_URI_MAX_LENGTH +#define CPPHTTPLIB_REQUEST_URI_MAX_LENGTH 8192 +#endif + +#ifndef CPPHTTPLIB_REDIRECT_MAX_COUNT +#define CPPHTTPLIB_REDIRECT_MAX_COUNT 20 +#endif + +#ifndef CPPHTTPLIB_PAYLOAD_MAX_LENGTH +#define CPPHTTPLIB_PAYLOAD_MAX_LENGTH (std::numeric_limits::max)() +#endif + +#ifndef CPPHTTPLIB_RECV_BUFSIZ +#define CPPHTTPLIB_RECV_BUFSIZ size_t(4096u) +#endif + +#ifndef CPPHTTPLIB_THREAD_POOL_COUNT +// if hardware_concurrency() outputs 0 we still wants to use threads for this. +// -1 because we have one thread already in the main function. +#define CPPHTTPLIB_THREAD_POOL_COUNT \ + (std::thread::hardware_concurrency() \ + ? std::thread::hardware_concurrency() - 1 \ + : 2) +#endif + +/* + * Headers + */ #ifdef _WIN32 #ifndef _CRT_SECURE_NO_WARNINGS #define _CRT_SECURE_NO_WARNINGS -#endif +#endif //_CRT_SECURE_NO_WARNINGS + #ifndef _CRT_NONSTDC_NO_DEPRECATE #define _CRT_NONSTDC_NO_DEPRECATE +#endif //_CRT_NONSTDC_NO_DEPRECATE + +#if defined(_MSC_VER) +#ifdef _WIN64 +using ssize_t = __int64; +#else +using ssize_t = int; #endif -#if defined(_MSC_VER) && _MSC_VER < 1900 +#if _MSC_VER < 1900 #define snprintf _snprintf_s #endif +#endif // _MSC_VER #ifndef S_ISREG -#define S_ISREG(m) (((m)&S_IFREG)==S_IFREG) -#endif +#define S_ISREG(m) (((m)&S_IFREG) == S_IFREG) +#endif // S_ISREG + #ifndef S_ISDIR -#define S_ISDIR(m) (((m)&S_IFDIR)==S_IFDIR) -#endif +#define S_ISDIR(m) (((m)&S_IFDIR) == S_IFDIR) +#endif // S_ISDIR + +#ifndef NOMINMAX +#define NOMINMAX +#endif // NOMINMAX #include #include #include -#undef min -#undef max +#ifndef WSA_FLAG_NO_HANDLE_INHERIT +#define WSA_FLAG_NO_HANDLE_INHERIT 0x80 +#endif + +#ifdef _MSC_VER +#pragma comment(lib, "ws2_32.lib") +#endif #ifndef strcasecmp #define strcasecmp _stricmp +#endif // strcasecmp + +using socket_t = SOCKET; +#ifdef CPPHTTPLIB_USE_POLL +#define poll(fds, nfds, timeout) WSAPoll(fds, nfds, timeout) #endif -typedef SOCKET socket_t; -#else -#include -#include -#include -#include -#include +#else // not _WIN32 + #include -#include -#include -#include - -typedef int socket_t; -#define INVALID_SOCKET (-1) +#include +#include +#include +#include +#ifdef CPPHTTPLIB_USE_POLL +#include #endif +#include +#include +#include +#include +#include +using socket_t = int; +#define INVALID_SOCKET (-1) +#endif //_WIN32 + +#include +#include +#include +#include +#include +#include #include #include +#include #include #include #include +#include #include #include -#include #include -#include -#include +#include #ifdef CPPHTTPLIB_OPENSSL_SUPPORT +#include +#include #include +#include + +#include +#include + +// #if OPENSSL_VERSION_NUMBER < 0x1010100fL +// #error Sorry, OpenSSL versions prior to 1.1.1 are not supported +// #endif + +#if OPENSSL_VERSION_NUMBER < 0x10100000L +#include +inline const unsigned char *ASN1_STRING_get0_data(const ASN1_STRING *asn1) { + return M_ASN1_STRING_data(asn1); +} +#endif #endif #ifdef CPPHTTPLIB_ZLIB_SUPPORT @@ -75,1198 +179,2321 @@ typedef int socket_t; #endif /* - * Configuration + * Declaration */ -#define CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND 5 -#define CPPHTTPLIB_KEEPALIVE_TIMEOUT_USECOND 0 - -namespace httplib -{ +namespace httplib { namespace detail { struct ci { - bool operator() (const std::string & s1, const std::string & s2) const { - return std::lexicographical_compare( - s1.begin(), s1.end(), - s2.begin(), s2.end(), - [](char c1, char c2) { - return ::tolower(c1) < ::tolower(c2); - }); - } + bool operator()(const std::string &s1, const std::string &s2) const { + return std::lexicographical_compare( + s1.begin(), s1.end(), s2.begin(), s2.end(), + [](char c1, char c2) { return ::tolower(c1) < ::tolower(c2); }); + } }; } // namespace detail -enum class HttpVersion { v1_0 = 0, v1_1 }; +using Headers = std::multimap; -typedef std::multimap Headers; +using Params = std::multimap; +using Match = std::smatch; -template -std::pair make_range_header(uint64_t value, Args... args); +using Progress = std::function; -typedef std::multimap Params; -typedef std::smatch Match; -typedef std::function Progress; +struct Response; +using ResponseHandler = std::function; -struct MultipartFile { - std::string filename; - std::string content_type; - size_t offset = 0; - size_t length = 0; +struct MultipartFormData { + std::string name; + std::string content; + std::string filename; + std::string content_type; }; -typedef std::multimap MultipartFiles; +using MultipartFormDataItems = std::vector; +using MultipartFormDataMap = std::multimap; + +class DataSink { +public: + DataSink() = default; + DataSink(const DataSink &) = delete; + DataSink &operator=(const DataSink &) = delete; + DataSink(DataSink &&) = delete; + DataSink &operator=(DataSink &&) = delete; + + std::function write; + std::function done; + std::function is_writable; +}; + +using ContentProvider = + std::function; + +using ContentReceiver = + std::function; + +using MultipartContentHeader = + std::function; + +class ContentReader { +public: + using Reader = std::function; + using MultipartReader = std::function; + + ContentReader(Reader reader, MultipartReader muitlpart_reader) + : reader_(reader), muitlpart_reader_(muitlpart_reader) {} + + bool operator()(MultipartContentHeader header, + ContentReceiver receiver) const { + return muitlpart_reader_(header, receiver); + } + + bool operator()(ContentReceiver receiver) const { return reader_(receiver); } + + Reader reader_; + MultipartReader muitlpart_reader_; +}; + +using Range = std::pair; +using Ranges = std::vector; struct Request { - std::string version; - std::string method; - std::string target; - std::string path; - Headers headers; - std::string body; - Params params; - MultipartFiles files; - Match matches; + std::string method; + std::string path; + Headers headers; + std::string body; - Progress progress; + // for server + std::string version; + std::string target; + Params params; + MultipartFormDataMap files; + Ranges ranges; + Match matches; - bool has_header(const char* key) const; - std::string get_header_value(const char* key) const; - void set_header(const char* key, const char* val); + // for client + size_t redirect_count = CPPHTTPLIB_REDIRECT_MAX_COUNT; + ResponseHandler response_handler; + ContentReceiver content_receiver; + Progress progress; - bool has_param(const char* key) const; - std::string get_param_value(const char* key) const; +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT + const SSL *ssl; +#endif - bool has_file(const char* key) const; - MultipartFile get_file_value(const char* key) const; + bool has_header(const char *key) const; + std::string get_header_value(const char *key, size_t id = 0) const; + size_t get_header_value_count(const char *key) const; + void set_header(const char *key, const char *val); + void set_header(const char *key, const std::string &val); + + bool has_param(const char *key) const; + std::string get_param_value(const char *key, size_t id = 0) const; + size_t get_param_value_count(const char *key) const; + + bool is_multipart_form_data() const; + + bool has_file(const char *key) const; + MultipartFormData get_file_value(const char *key) const; + + // private members... + size_t content_length; + ContentProvider content_provider; }; struct Response { - std::string version; - int status; - Headers headers; - std::string body; + std::string version; + int status = -1; + Headers headers; + std::string body; - bool has_header(const char* key) const; - std::string get_header_value(const char* key) const; - void set_header(const char* key, const char* val); + bool has_header(const char *key) const; + std::string get_header_value(const char *key, size_t id = 0) const; + size_t get_header_value_count(const char *key) const; + void set_header(const char *key, const char *val); + void set_header(const char *key, const std::string &val); - void set_redirect(const char* uri); - void set_content(const char* s, size_t n, const char* content_type); - void set_content(const std::string& s, const char* content_type); + void set_redirect(const char *url); + void set_content(const char *s, size_t n, const char *content_type); + void set_content(const std::string &s, const char *content_type); - Response() : status(-1) {} + void set_content_provider( + size_t length, + std::function + provider, + std::function resource_releaser = [] {}); + + void set_chunked_content_provider( + std::function provider, + std::function resource_releaser = [] {}); + + Response() = default; + Response(const Response &) = default; + Response &operator=(const Response &) = default; + Response(Response &&) = default; + Response &operator=(Response &&) = default; + ~Response() { + if (content_provider_resource_releaser) { + content_provider_resource_releaser(); + } + } + + // private members... + size_t content_length = 0; + ContentProvider content_provider; + std::function content_provider_resource_releaser; }; class Stream { public: - virtual ~Stream() {} - virtual int read(char* ptr, size_t size) = 0; - virtual int write(const char* ptr, size_t size1) = 0; - virtual int write(const char* ptr) = 0; - virtual std::string get_remote_addr() = 0; + virtual ~Stream() = default; - template - void write_format(const char* fmt, const Args& ...args); + virtual bool is_readable() const = 0; + virtual bool is_writable() const = 0; + + virtual int read(char *ptr, size_t size) = 0; + virtual int write(const char *ptr, size_t size) = 0; + virtual std::string get_remote_addr() const = 0; + + template + int write_format(const char *fmt, const Args &... args); + int write(const char *ptr); + int write(const std::string &s); }; -class SocketStream : public Stream { +class TaskQueue { public: - SocketStream(socket_t sock); - virtual ~SocketStream(); + TaskQueue() = default; + virtual ~TaskQueue() = default; + virtual void enqueue(std::function fn) = 0; + virtual void shutdown() = 0; +}; - virtual int read(char* ptr, size_t size); - virtual int write(const char* ptr, size_t size); - virtual int write(const char* ptr); - virtual std::string get_remote_addr(); +class ThreadPool : public TaskQueue { +public: + explicit ThreadPool(size_t n) : shutdown_(false) { + while (n) { + threads_.emplace_back(worker(*this)); + n--; + } + } + + ThreadPool(const ThreadPool &) = delete; + ~ThreadPool() override = default; + + void enqueue(std::function fn) override { + std::unique_lock lock(mutex_); + jobs_.push_back(fn); + cond_.notify_one(); + } + + void shutdown() override { + // Stop all worker threads... + { + std::unique_lock lock(mutex_); + shutdown_ = true; + } + + cond_.notify_all(); + + // Join... + for (auto &t : threads_) { + t.join(); + } + } private: - socket_t sock_; + struct worker { + explicit worker(ThreadPool &pool) : pool_(pool) {} + + void operator()() { + for (;;) { + std::function fn; + { + std::unique_lock lock(pool_.mutex_); + + pool_.cond_.wait( + lock, [&] { return !pool_.jobs_.empty() || pool_.shutdown_; }); + + if (pool_.shutdown_ && pool_.jobs_.empty()) { break; } + + fn = pool_.jobs_.front(); + pool_.jobs_.pop_front(); + } + + assert(true == static_cast(fn)); + fn(); + } + } + + ThreadPool &pool_; + }; + friend struct worker; + + std::vector threads_; + std::list> jobs_; + + bool shutdown_; + + std::condition_variable cond_; + std::mutex mutex_; }; +using Logger = std::function; + class Server { public: - typedef std::function Handler; - typedef std::function Logger; + using Handler = std::function; + using HandlerWithContentReader = std::function; - Server(); + Server(); - virtual ~Server(); + virtual ~Server(); - virtual bool is_valid() const; + virtual bool is_valid() const; - Server& Get(const char* pattern, Handler handler); - Server& Post(const char* pattern, Handler handler); + Server &Get(const char *pattern, Handler handler); + Server &Post(const char *pattern, Handler handler); + Server &Post(const char *pattern, HandlerWithContentReader handler); + Server &Put(const char *pattern, Handler handler); + Server &Put(const char *pattern, HandlerWithContentReader handler); + Server &Patch(const char *pattern, Handler handler); + Server &Patch(const char *pattern, HandlerWithContentReader handler); + Server &Delete(const char *pattern, Handler handler); + Server &Options(const char *pattern, Handler handler); - Server& Put(const char* pattern, Handler handler); - Server& Delete(const char* pattern, Handler handler); - Server& Options(const char* pattern, Handler handler); + [[deprecated]] bool set_base_dir(const char *dir, + const char *mount_point = nullptr); + bool set_mount_point(const char *mount_point, const char *dir); + bool remove_mount_point(const char *mount_point); + void set_file_extension_and_mimetype_mapping(const char *ext, + const char *mime); + void set_file_request_handler(Handler handler); - bool set_base_dir(const char* path); + void set_error_handler(Handler handler); + void set_logger(Logger logger); - void set_error_handler(Handler handler); - void set_logger(Logger logger); + void set_keep_alive_max_count(size_t count); + void set_read_timeout(time_t sec, time_t usec); + void set_payload_max_length(size_t length); - void set_keep_alive_max_count(size_t count); + bool bind_to_port(const char *host, int port, int socket_flags = 0); + int bind_to_any_port(const char *host, int socket_flags = 0); + bool listen_after_bind(); - int bind_to_any_port(const char* host, int socket_flags = 0); - bool listen_after_bind(); + bool listen(const char *host, int port, int socket_flags = 0); - bool listen(const char* host, int port, int socket_flags = 0); + bool is_running() const; + void stop(); - bool is_running() const; - void stop(); + std::function new_task_queue; protected: - bool process_request(Stream& strm, bool last_connection, bool& connection_close); + bool process_request(Stream &strm, bool last_connection, + bool &connection_close, + const std::function &setup_request); - size_t keep_alive_max_count_; + size_t keep_alive_max_count_; + time_t read_timeout_sec_; + time_t read_timeout_usec_; + size_t payload_max_length_; private: - typedef std::vector> Handlers; + using Handlers = std::vector>; + using HandlersForContentReader = + std::vector>; - socket_t create_server_socket(const char* host, int port, int socket_flags) const; - int bind_internal(const char* host, int port, int socket_flags); - bool listen_internal(); + socket_t create_server_socket(const char *host, int port, + int socket_flags) const; + int bind_internal(const char *host, int port, int socket_flags); + bool listen_internal(); - bool routing(Request& req, Response& res); - bool handle_file_request(Request& req, Response& res); - bool dispatch_request(Request& req, Response& res, Handlers& handlers); + bool routing(Request &req, Response &res, Stream &strm, bool last_connection); + bool handle_file_request(Request &req, Response &res, bool head = false); + bool dispatch_request(Request &req, Response &res, Handlers &handlers); + bool dispatch_request_for_content_reader(Request &req, Response &res, + ContentReader content_reader, + HandlersForContentReader &handlers); - bool parse_request_line(const char* s, Request& req); - void write_response(Stream& strm, bool last_connection, const Request& req, Response& res); + bool parse_request_line(const char *s, Request &req); + bool write_response(Stream &strm, bool last_connection, const Request &req, + Response &res); + bool write_content_with_provider(Stream &strm, const Request &req, + Response &res, const std::string &boundary, + const std::string &content_type); + bool read_content(Stream &strm, bool last_connection, Request &req, + Response &res); + bool read_content_with_content_receiver( + Stream &strm, bool last_connection, Request &req, Response &res, + ContentReceiver receiver, MultipartContentHeader multipart_header, + ContentReceiver multipart_receiver); + bool read_content_core(Stream &strm, bool last_connection, Request &req, + Response &res, ContentReceiver receiver, + MultipartContentHeader mulitpart_header, + ContentReceiver multipart_receiver); - virtual bool read_and_close_socket(socket_t sock); + virtual bool process_and_close_socket(socket_t sock); - bool is_running_; - socket_t svr_sock_; - std::string base_dir_; - Handlers get_handlers_; - Handlers post_handlers_; - Handlers put_handlers_; - Handlers delete_handlers_; - Handlers options_handlers_; - Handler error_handler_; - Logger logger_; - - // TODO: Use thread pool... - std::mutex running_threads_mutex_; - int running_threads_; + std::atomic is_running_; + std::atomic svr_sock_; + std::vector> base_dirs_; + std::map file_extension_and_mimetype_map_; + Handler file_request_handler_; + Handlers get_handlers_; + Handlers post_handlers_; + HandlersForContentReader post_handlers_for_content_reader_; + Handlers put_handlers_; + HandlersForContentReader put_handlers_for_content_reader_; + Handlers patch_handlers_; + HandlersForContentReader patch_handlers_for_content_reader_; + Handlers delete_handlers_; + Handlers options_handlers_; + Handler error_handler_; + Logger logger_; }; class Client { public: - Client( - const char* host, - int port = 80, - size_t timeout_sec = 300); + explicit Client(const std::string &host, int port = 80, + const std::string &client_cert_path = std::string(), + const std::string &client_key_path = std::string()); - virtual ~Client(); + virtual ~Client(); - virtual bool is_valid() const; + virtual bool is_valid() const; - std::shared_ptr Get(const char* path, Progress progress = nullptr); - std::shared_ptr Get(const char* path, const Headers& headers, Progress progress = nullptr); + std::shared_ptr Get(const char *path); - std::shared_ptr Head(const char* path); - std::shared_ptr Head(const char* path, const Headers& headers); + std::shared_ptr Get(const char *path, const Headers &headers); - std::shared_ptr Post(const char* path, const std::string& body, const char* content_type); - std::shared_ptr Post(const char* path, const Headers& headers, const std::string& body, const char* content_type); + std::shared_ptr Get(const char *path, Progress progress); - std::shared_ptr Post(const char* path, const Params& params); - std::shared_ptr Post(const char* path, const Headers& headers, const Params& params); + std::shared_ptr Get(const char *path, const Headers &headers, + Progress progress); - std::shared_ptr Put(const char* path, const std::string& body, const char* content_type); - std::shared_ptr Put(const char* path, const Headers& headers, const std::string& body, const char* content_type); + std::shared_ptr Get(const char *path, + ContentReceiver content_receiver); - std::shared_ptr Delete(const char* path); - std::shared_ptr Delete(const char* path, const Headers& headers); + std::shared_ptr Get(const char *path, const Headers &headers, + ContentReceiver content_receiver); - std::shared_ptr Options(const char* path); - std::shared_ptr Options(const char* path, const Headers& headers); + std::shared_ptr + Get(const char *path, ContentReceiver content_receiver, Progress progress); - bool send(Request& req, Response& res); + std::shared_ptr Get(const char *path, const Headers &headers, + ContentReceiver content_receiver, + Progress progress); -protected: - bool process_request(Stream& strm, Request& req, Response& res, bool& connection_close); + std::shared_ptr Get(const char *path, const Headers &headers, + ResponseHandler response_handler, + ContentReceiver content_receiver); - const std::string host_; - const int port_; - size_t timeout_sec_; - const std::string host_and_port_; + std::shared_ptr Get(const char *path, const Headers &headers, + ResponseHandler response_handler, + ContentReceiver content_receiver, + Progress progress); -private: - socket_t create_client_socket() const; - bool read_response_line(Stream& strm, Response& res); - void write_request(Stream& strm, Request& req); + std::shared_ptr Head(const char *path); - virtual bool read_and_close_socket(socket_t sock, Request& req, Response& res); -}; + std::shared_ptr Head(const char *path, const Headers &headers); + + std::shared_ptr Post(const char *path, const std::string &body, + const char *content_type); + + std::shared_ptr Post(const char *path, const Headers &headers, + const std::string &body, + const char *content_type); + + std::shared_ptr Post(const char *path, size_t content_length, + ContentProvider content_provider, + const char *content_type); + + std::shared_ptr Post(const char *path, const Headers &headers, + size_t content_length, + ContentProvider content_provider, + const char *content_type); + + std::shared_ptr Post(const char *path, const Params ¶ms); + + std::shared_ptr Post(const char *path, const Headers &headers, + const Params ¶ms); + + std::shared_ptr Post(const char *path, + const MultipartFormDataItems &items); + + std::shared_ptr Post(const char *path, const Headers &headers, + const MultipartFormDataItems &items); + + std::shared_ptr Put(const char *path, const std::string &body, + const char *content_type); + + std::shared_ptr Put(const char *path, const Headers &headers, + const std::string &body, + const char *content_type); + + std::shared_ptr Put(const char *path, size_t content_length, + ContentProvider content_provider, + const char *content_type); + + std::shared_ptr Put(const char *path, const Headers &headers, + size_t content_length, + ContentProvider content_provider, + const char *content_type); + + std::shared_ptr Put(const char *path, const Params ¶ms); + + std::shared_ptr Put(const char *path, const Headers &headers, + const Params ¶ms); + + std::shared_ptr Patch(const char *path, const std::string &body, + const char *content_type); + + std::shared_ptr Patch(const char *path, const Headers &headers, + const std::string &body, + const char *content_type); + + std::shared_ptr Patch(const char *path, size_t content_length, + ContentProvider content_provider, + const char *content_type); + + std::shared_ptr Patch(const char *path, const Headers &headers, + size_t content_length, + ContentProvider content_provider, + const char *content_type); + + std::shared_ptr Delete(const char *path); + + std::shared_ptr Delete(const char *path, const std::string &body, + const char *content_type); + + std::shared_ptr Delete(const char *path, const Headers &headers); + + std::shared_ptr Delete(const char *path, const Headers &headers, + const std::string &body, + const char *content_type); + + std::shared_ptr Options(const char *path); + + std::shared_ptr Options(const char *path, const Headers &headers); + + bool send(const Request &req, Response &res); + + bool send(const std::vector &requests, + std::vector &responses); + + void set_timeout_sec(time_t timeout_sec); + + void set_read_timeout(time_t sec, time_t usec); + + void set_keep_alive_max_count(size_t count); + + void set_basic_auth(const char *username, const char *password); #ifdef CPPHTTPLIB_OPENSSL_SUPPORT -class SSLSocketStream : public Stream { -public: - SSLSocketStream(socket_t sock, SSL* ssl); - virtual ~SSLSocketStream(); + void set_digest_auth(const char *username, const char *password); +#endif - virtual int read(char* ptr, size_t size); - virtual int write(const char* ptr, size_t size); - virtual int write(const char* ptr); - virtual std::string get_remote_addr(); + void set_follow_location(bool on); + + void set_compress(bool on); + + void set_interface(const char *intf); + + void set_proxy(const char *host, int port); + + void set_proxy_basic_auth(const char *username, const char *password); + +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT + void set_proxy_digest_auth(const char *username, const char *password); +#endif + + void set_logger(Logger logger); + +protected: + bool process_request(Stream &strm, const Request &req, Response &res, + bool last_connection, bool &connection_close); + + const std::string host_; + const int port_; + const std::string host_and_port_; + + // Settings + std::string client_cert_path_; + std::string client_key_path_; + + time_t timeout_sec_ = 300; + time_t read_timeout_sec_ = CPPHTTPLIB_READ_TIMEOUT_SECOND; + time_t read_timeout_usec_ = CPPHTTPLIB_READ_TIMEOUT_USECOND; + + size_t keep_alive_max_count_ = CPPHTTPLIB_KEEPALIVE_MAX_COUNT; + + std::string basic_auth_username_; + std::string basic_auth_password_; +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT + std::string digest_auth_username_; + std::string digest_auth_password_; +#endif + + bool follow_location_ = false; + + bool compress_ = false; + + std::string interface_; + + std::string proxy_host_; + int proxy_port_; + + std::string proxy_basic_auth_username_; + std::string proxy_basic_auth_password_; +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT + std::string proxy_digest_auth_username_; + std::string proxy_digest_auth_password_; +#endif + + Logger logger_; + + void copy_settings(const Client &rhs) { + client_cert_path_ = rhs.client_cert_path_; + client_key_path_ = rhs.client_key_path_; + timeout_sec_ = rhs.timeout_sec_; + read_timeout_sec_ = rhs.read_timeout_sec_; + read_timeout_usec_ = rhs.read_timeout_usec_; + keep_alive_max_count_ = rhs.keep_alive_max_count_; + basic_auth_username_ = rhs.basic_auth_username_; + basic_auth_password_ = rhs.basic_auth_password_; +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT + digest_auth_username_ = rhs.digest_auth_username_; + digest_auth_password_ = rhs.digest_auth_password_; +#endif + follow_location_ = rhs.follow_location_; + compress_ = rhs.compress_; + interface_ = rhs.interface_; + proxy_host_ = rhs.proxy_host_; + proxy_port_ = rhs.proxy_port_; + proxy_basic_auth_username_ = rhs.proxy_basic_auth_username_; + proxy_basic_auth_password_ = rhs.proxy_basic_auth_password_; +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT + proxy_digest_auth_username_ = rhs.proxy_digest_auth_username_; + proxy_digest_auth_password_ = rhs.proxy_digest_auth_password_; +#endif + logger_ = rhs.logger_; + } private: - socket_t sock_; - SSL* ssl_; + socket_t create_client_socket() const; + bool read_response_line(Stream &strm, Response &res); + bool write_request(Stream &strm, const Request &req, bool last_connection); + bool redirect(const Request &req, Response &res); + bool handle_request(Stream &strm, const Request &req, Response &res, + bool last_connection, bool &connection_close); +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT + bool connect(socket_t sock, Response &res, bool &error); +#endif + + std::shared_ptr send_with_content_provider( + const char *method, const char *path, const Headers &headers, + const std::string &body, size_t content_length, + ContentProvider content_provider, const char *content_type); + + virtual bool process_and_close_socket( + socket_t sock, size_t request_count, + std::function + callback); + + virtual bool is_ssl() const; }; +inline void Get(std::vector &requests, const char *path, + const Headers &headers) { + Request req; + req.method = "GET"; + req.path = path; + req.headers = headers; + requests.emplace_back(std::move(req)); +} + +inline void Get(std::vector &requests, const char *path) { + Get(requests, path, Headers()); +} + +inline void Post(std::vector &requests, const char *path, + const Headers &headers, const std::string &body, + const char *content_type) { + Request req; + req.method = "POST"; + req.path = path; + req.headers = headers; + req.headers.emplace("Content-Type", content_type); + req.body = body; + requests.emplace_back(std::move(req)); +} + +inline void Post(std::vector &requests, const char *path, + const std::string &body, const char *content_type) { + Post(requests, path, Headers(), body, content_type); +} + +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT class SSLServer : public Server { public: - SSLServer( - const char* cert_path, const char* private_key_path); + SSLServer(const char *cert_path, const char *private_key_path, + const char *client_ca_cert_file_path = nullptr, + const char *client_ca_cert_dir_path = nullptr); - virtual ~SSLServer(); + virtual ~SSLServer(); - virtual bool is_valid() const; + virtual bool is_valid() const; private: - virtual bool read_and_close_socket(socket_t sock); + virtual bool process_and_close_socket(socket_t sock); - SSL_CTX* ctx_; - std::mutex ctx_mutex_; + SSL_CTX *ctx_; + std::mutex ctx_mutex_; }; class SSLClient : public Client { public: - SSLClient( - const char* host, - int port = 80, - size_t timeout_sec = 300); + SSLClient(const std::string &host, int port = 443, + const std::string &client_cert_path = std::string(), + const std::string &client_key_path = std::string()); - virtual ~SSLClient(); + virtual ~SSLClient(); - virtual bool is_valid() const; + virtual bool is_valid() const; + + void set_ca_cert_path(const char *ca_ceert_file_path, + const char *ca_cert_dir_path = nullptr); + + void enable_server_certificate_verification(bool enabled); + + long get_openssl_verify_result() const; + + SSL_CTX *ssl_context() const noexcept; private: - virtual bool read_and_close_socket(socket_t sock, Request& req, Response& res); + virtual bool process_and_close_socket( + socket_t sock, size_t request_count, + std::function + callback); + virtual bool is_ssl() const; - SSL_CTX* ctx_; - std::mutex ctx_mutex_; + bool verify_host(X509 *server_cert) const; + bool verify_host_with_subject_alt_name(X509 *server_cert) const; + bool verify_host_with_common_name(X509 *server_cert) const; + bool check_host_name(const char *pattern, size_t pattern_len) const; + + SSL_CTX *ctx_; + std::mutex ctx_mutex_; + std::vector host_components_; + + std::string ca_cert_file_path_; + std::string ca_cert_dir_path_; + bool server_certificate_verification_ = false; + long verify_result_ = 0; }; #endif +// ---------------------------------------------------------------------------- + /* * Implementation */ + namespace detail { -template -void split(const char* b, const char* e, char d, Fn fn) -{ - int i = 0; - int beg = 0; +inline bool is_hex(char c, int &v) { + if (0x20 <= c && isdigit(c)) { + v = c - '0'; + return true; + } else if ('A' <= c && c <= 'F') { + v = c - 'A' + 10; + return true; + } else if ('a' <= c && c <= 'f') { + v = c - 'a' + 10; + return true; + } + return false; +} - while (e ? (b + i != e) : (b[i] != '\0')) { - if (b[i] == d) { - fn(&b[beg], &b[i]); - beg = i + 1; - } - i++; +inline bool from_hex_to_i(const std::string &s, size_t i, size_t cnt, + int &val) { + if (i >= s.size()) { return false; } + + val = 0; + for (; cnt; i++, cnt--) { + if (!s[i]) { return false; } + int v = 0; + if (is_hex(s[i], v)) { + val = val * 16 + v; + } else { + return false; + } + } + return true; +} + +inline std::string from_i_to_hex(size_t n) { + const char *charset = "0123456789abcdef"; + std::string ret; + do { + ret = charset[n & 15] + ret; + n >>= 4; + } while (n > 0); + return ret; +} + +inline size_t to_utf8(int code, char *buff) { + if (code < 0x0080) { + buff[0] = (code & 0x7F); + return 1; + } else if (code < 0x0800) { + buff[0] = (0xC0 | ((code >> 6) & 0x1F)); + buff[1] = (0x80 | (code & 0x3F)); + return 2; + } else if (code < 0xD800) { + buff[0] = (0xE0 | ((code >> 12) & 0xF)); + buff[1] = (0x80 | ((code >> 6) & 0x3F)); + buff[2] = (0x80 | (code & 0x3F)); + return 3; + } else if (code < 0xE000) { // D800 - DFFF is invalid... + return 0; + } else if (code < 0x10000) { + buff[0] = (0xE0 | ((code >> 12) & 0xF)); + buff[1] = (0x80 | ((code >> 6) & 0x3F)); + buff[2] = (0x80 | (code & 0x3F)); + return 3; + } else if (code < 0x110000) { + buff[0] = (0xF0 | ((code >> 18) & 0x7)); + buff[1] = (0x80 | ((code >> 12) & 0x3F)); + buff[2] = (0x80 | ((code >> 6) & 0x3F)); + buff[3] = (0x80 | (code & 0x3F)); + return 4; + } + + // NOTREACHED + return 0; +} + +// NOTE: This code came up with the following stackoverflow post: +// https://stackoverflow.com/questions/180947/base64-decode-snippet-in-c +inline std::string base64_encode(const std::string &in) { + static const auto lookup = + "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; + + std::string out; + out.reserve(in.size()); + + int val = 0; + int valb = -6; + + for (uint8_t c : in) { + val = (val << 8) + c; + valb += 8; + while (valb >= 0) { + out.push_back(lookup[(val >> valb) & 0x3F]); + valb -= 6; + } + } + + if (valb > -6) { out.push_back(lookup[((val << 8) >> (valb + 8)) & 0x3F]); } + + while (out.size() % 4) { + out.push_back('='); + } + + return out; +} + +inline bool is_file(const std::string &path) { + struct stat st; + return stat(path.c_str(), &st) >= 0 && S_ISREG(st.st_mode); +} + +inline bool is_dir(const std::string &path) { + struct stat st; + return stat(path.c_str(), &st) >= 0 && S_ISDIR(st.st_mode); +} + +inline bool is_valid_path(const std::string &path) { + size_t level = 0; + size_t i = 0; + + // Skip slash + while (i < path.size() && path[i] == '/') { + i++; + } + + while (i < path.size()) { + // Read component + auto beg = i; + while (i < path.size() && path[i] != '/') { + i++; } - if (i) { - fn(&b[beg], &b[i]); + auto len = i - beg; + assert(len > 0); + + if (!path.compare(beg, len, ".")) { + ; + } else if (!path.compare(beg, len, "..")) { + if (level == 0) { return false; } + level--; + } else { + level++; } + + // Skip slash + while (i < path.size() && path[i] == '/') { + i++; + } + } + + return true; +} + +inline void read_file(const std::string &path, std::string &out) { + std::ifstream fs(path, std::ios_base::binary); + fs.seekg(0, std::ios_base::end); + auto size = fs.tellg(); + fs.seekg(0); + out.resize(static_cast(size)); + fs.read(&out[0], size); +} + +inline std::string file_extension(const std::string &path) { + std::smatch m; + static auto re = std::regex("\\.([a-zA-Z0-9]+)$"); + if (std::regex_search(path, m, re)) { return m[1].str(); } + return std::string(); +} + +template void split(const char *b, const char *e, char d, Fn fn) { + int i = 0; + int beg = 0; + + while (e ? (b + i != e) : (b[i] != '\0')) { + if (b[i] == d) { + fn(&b[beg], &b[i]); + beg = i + 1; + } + i++; + } + + if (i) { fn(&b[beg], &b[i]); } } // NOTE: until the read size reaches `fixed_buffer_size`, use `fixed_buffer` // to store data. The call can set memory on stack for performance. class stream_line_reader { public: - stream_line_reader(Stream& strm, char* fixed_buffer, size_t fixed_buffer_size) - : strm_(strm) - , fixed_buffer_(fixed_buffer) - , fixed_buffer_size_(fixed_buffer_size) { - } + stream_line_reader(Stream &strm, char *fixed_buffer, size_t fixed_buffer_size) + : strm_(strm), fixed_buffer_(fixed_buffer), + fixed_buffer_size_(fixed_buffer_size) {} - const char* ptr() const { - if (glowable_buffer_.empty()) { - return fixed_buffer_; - } else { - return glowable_buffer_.data(); - } - } - - bool getline() { - fixed_buffer_used_size_ = 0; - glowable_buffer_.clear(); - - for (size_t i = 0; ; i++) { - char byte; - auto n = strm_.read(&byte, 1); - - if (n < 0) { - return false; - } else if (n == 0) { - if (i == 0) { - return false; - } else { - break; - } - } - - append(byte); - - if (byte == '\n') { - break; - } - } - - return true; - } - -private: - void append(char c) { - if (fixed_buffer_used_size_ < fixed_buffer_size_ - 1) { - fixed_buffer_[fixed_buffer_used_size_++] = c; - fixed_buffer_[fixed_buffer_used_size_] = '\0'; - } else { - if (glowable_buffer_.empty()) { - assert(fixed_buffer_[fixed_buffer_used_size_] == '\0'); - glowable_buffer_.assign(fixed_buffer_, fixed_buffer_used_size_); - } - glowable_buffer_ += c; - } - } - - Stream& strm_; - char* fixed_buffer_; - const size_t fixed_buffer_size_; - size_t fixed_buffer_used_size_; - std::string glowable_buffer_; -}; - -inline int close_socket(socket_t sock) -{ -#ifdef _WIN32 - return closesocket(sock); -#else - return close(sock); -#endif -} - -inline int select_read(socket_t sock, size_t sec, size_t usec) -{ - fd_set fds; - FD_ZERO(&fds); - FD_SET(sock, &fds); - - timeval tv; - tv.tv_sec = sec; - tv.tv_usec = usec; - - return select(sock + 1, &fds, NULL, NULL, &tv); -} - -inline bool wait_until_socket_is_ready(socket_t sock, size_t sec, size_t usec) -{ - fd_set fdsr; - FD_ZERO(&fdsr); - FD_SET(sock, &fdsr); - - auto fdsw = fdsr; - auto fdse = fdsr; - - timeval tv; - tv.tv_sec = sec; - tv.tv_usec = usec; - - if (select(sock + 1, &fdsr, &fdsw, &fdse, &tv) < 0) { - return false; - } else if (FD_ISSET(sock, &fdsr) || FD_ISSET(sock, &fdsw)) { - int error = 0; - socklen_t len = sizeof(error); - if (getsockopt(sock, SOL_SOCKET, SO_ERROR, (char*)&error, &len) < 0 || error) { - return false; - } + const char *ptr() const { + if (glowable_buffer_.empty()) { + return fixed_buffer_; } else { + return glowable_buffer_.data(); + } + } + + size_t size() const { + if (glowable_buffer_.empty()) { + return fixed_buffer_used_size_; + } else { + return glowable_buffer_.size(); + } + } + + bool end_with_crlf() const { + auto end = ptr() + size(); + return size() >= 2 && end[-2] == '\r' && end[-1] == '\n'; + } + + bool getline() { + fixed_buffer_used_size_ = 0; + glowable_buffer_.clear(); + + for (size_t i = 0;; i++) { + char byte; + auto n = strm_.read(&byte, 1); + + if (n < 0) { return false; + } else if (n == 0) { + if (i == 0) { + return false; + } else { + break; + } + } + + append(byte); + + if (byte == '\n') { break; } } return true; + } + +private: + void append(char c) { + if (fixed_buffer_used_size_ < fixed_buffer_size_ - 1) { + fixed_buffer_[fixed_buffer_used_size_++] = c; + fixed_buffer_[fixed_buffer_used_size_] = '\0'; + } else { + if (glowable_buffer_.empty()) { + assert(fixed_buffer_[fixed_buffer_used_size_] == '\0'); + glowable_buffer_.assign(fixed_buffer_, fixed_buffer_used_size_); + } + glowable_buffer_ += c; + } + } + + Stream &strm_; + char *fixed_buffer_; + const size_t fixed_buffer_size_; + size_t fixed_buffer_used_size_ = 0; + std::string glowable_buffer_; +}; + +inline int close_socket(socket_t sock) { +#ifdef _WIN32 + return closesocket(sock); +#else + return close(sock); +#endif +} + +inline int select_read(socket_t sock, time_t sec, time_t usec) { +#ifdef CPPHTTPLIB_USE_POLL + struct pollfd pfd_read; + pfd_read.fd = sock; + pfd_read.events = POLLIN; + + auto timeout = static_cast(sec * 1000 + usec / 1000); + + return poll(&pfd_read, 1, timeout); +#else + fd_set fds; + FD_ZERO(&fds); + FD_SET(sock, &fds); + + timeval tv; + tv.tv_sec = static_cast(sec); + tv.tv_usec = static_cast(usec); + + return select(static_cast(sock + 1), &fds, nullptr, nullptr, &tv); +#endif +} + +inline int select_write(socket_t sock, time_t sec, time_t usec) { +#ifdef CPPHTTPLIB_USE_POLL + struct pollfd pfd_read; + pfd_read.fd = sock; + pfd_read.events = POLLOUT; + + auto timeout = static_cast(sec * 1000 + usec / 1000); + + return poll(&pfd_read, 1, timeout); +#else + fd_set fds; + FD_ZERO(&fds); + FD_SET(sock, &fds); + + timeval tv; + tv.tv_sec = static_cast(sec); + tv.tv_usec = static_cast(usec); + + return select(static_cast(sock + 1), nullptr, &fds, nullptr, &tv); +#endif +} + +inline bool wait_until_socket_is_ready(socket_t sock, time_t sec, time_t usec) { +#ifdef CPPHTTPLIB_USE_POLL + struct pollfd pfd_read; + pfd_read.fd = sock; + pfd_read.events = POLLIN | POLLOUT; + + auto timeout = static_cast(sec * 1000 + usec / 1000); + + if (poll(&pfd_read, 1, timeout) > 0 && + pfd_read.revents & (POLLIN | POLLOUT)) { + int error = 0; + socklen_t len = sizeof(error); + return getsockopt(sock, SOL_SOCKET, SO_ERROR, + reinterpret_cast(&error), &len) >= 0 && + !error; + } + return false; +#else + fd_set fdsr; + FD_ZERO(&fdsr); + FD_SET(sock, &fdsr); + + auto fdsw = fdsr; + auto fdse = fdsr; + + timeval tv; + tv.tv_sec = static_cast(sec); + tv.tv_usec = static_cast(usec); + + if (select(static_cast(sock + 1), &fdsr, &fdsw, &fdse, &tv) > 0 && + (FD_ISSET(sock, &fdsr) || FD_ISSET(sock, &fdsw))) { + int error = 0; + socklen_t len = sizeof(error); + return getsockopt(sock, SOL_SOCKET, SO_ERROR, + reinterpret_cast(&error), &len) >= 0 && + !error; + } + return false; +#endif +} + +class SocketStream : public Stream { +public: + SocketStream(socket_t sock, time_t read_timeout_sec, + time_t read_timeout_usec); + ~SocketStream() override; + + bool is_readable() const override; + bool is_writable() const override; + int read(char *ptr, size_t size) override; + int write(const char *ptr, size_t size) override; + std::string get_remote_addr() const override; + +private: + socket_t sock_; + time_t read_timeout_sec_; + time_t read_timeout_usec_; +}; + +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT +class SSLSocketStream : public Stream { +public: + SSLSocketStream(socket_t sock, SSL *ssl, time_t read_timeout_sec, + time_t read_timeout_usec); + virtual ~SSLSocketStream(); + + bool is_readable() const override; + bool is_writable() const override; + int read(char *ptr, size_t size) override; + int write(const char *ptr, size_t size) override; + std::string get_remote_addr() const override; + +private: + socket_t sock_; + SSL *ssl_; + time_t read_timeout_sec_; + time_t read_timeout_usec_; +}; +#endif + +class BufferStream : public Stream { +public: + BufferStream() = default; + ~BufferStream() override = default; + + bool is_readable() const override; + bool is_writable() const override; + int read(char *ptr, size_t size) override; + int write(const char *ptr, size_t size) override; + std::string get_remote_addr() const override; + + const std::string &get_buffer() const; + +private: + std::string buffer; + int position = 0; +}; + +template +inline bool process_socket(bool is_client_request, socket_t sock, + size_t keep_alive_max_count, time_t read_timeout_sec, + time_t read_timeout_usec, T callback) { + assert(keep_alive_max_count > 0); + + auto ret = false; + + if (keep_alive_max_count > 1) { + auto count = keep_alive_max_count; + while (count > 0 && + (is_client_request || + select_read(sock, CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND, + CPPHTTPLIB_KEEPALIVE_TIMEOUT_USECOND) > 0)) { + SocketStream strm(sock, read_timeout_sec, read_timeout_usec); + auto last_connection = count == 1; + auto connection_close = false; + + ret = callback(strm, last_connection, connection_close); + if (!ret || connection_close) { break; } + + count--; + } + } else { // keep_alive_max_count is 0 or 1 + SocketStream strm(sock, read_timeout_sec, read_timeout_usec); + auto dummy_connection_close = false; + ret = callback(strm, true, dummy_connection_close); + } + + return ret; } template -inline bool read_and_close_socket(socket_t sock, size_t keep_alive_max_count, T callback) -{ - bool ret = false; - - if (keep_alive_max_count > 0) { - auto count = keep_alive_max_count; - while (count > 0 && - detail::select_read(sock, - CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND, - CPPHTTPLIB_KEEPALIVE_TIMEOUT_USECOND) > 0) { - SocketStream strm(sock); - auto last_connection = count == 1; - auto connection_close = false; - - ret = callback(strm, last_connection, connection_close); - if (!ret || connection_close) { - break; - } - - count--; - } - } else { - SocketStream strm(sock); - auto dummy_connection_close = false; - ret = callback(strm, true, dummy_connection_close); - } - - close_socket(sock); - return ret; +inline bool process_and_close_socket(bool is_client_request, socket_t sock, + size_t keep_alive_max_count, + time_t read_timeout_sec, + time_t read_timeout_usec, T callback) { + auto ret = process_socket(is_client_request, sock, keep_alive_max_count, + read_timeout_sec, read_timeout_usec, callback); + close_socket(sock); + return ret; } -inline int shutdown_socket(socket_t sock) -{ +inline int shutdown_socket(socket_t sock) { #ifdef _WIN32 - return shutdown(sock, SD_BOTH); + return shutdown(sock, SD_BOTH); #else - return shutdown(sock, SHUT_RDWR); + return shutdown(sock, SHUT_RDWR); #endif } template -socket_t create_socket(const char* host, int port, Fn fn, int socket_flags = 0) -{ +socket_t create_socket(const char *host, int port, Fn fn, + int socket_flags = 0) { #ifdef _WIN32 #define SO_SYNCHRONOUS_NONALERT 0x20 #define SO_OPENTYPE 0x7008 - int opt = SO_SYNCHRONOUS_NONALERT; - setsockopt(INVALID_SOCKET, SOL_SOCKET, SO_OPENTYPE, (char*)&opt, sizeof(opt)); + int opt = SO_SYNCHRONOUS_NONALERT; + setsockopt(INVALID_SOCKET, SOL_SOCKET, SO_OPENTYPE, (char *)&opt, + sizeof(opt)); #endif - // Get address info - struct addrinfo hints; - struct addrinfo *result; + // Get address info + struct addrinfo hints; + struct addrinfo *result; - memset(&hints, 0, sizeof(struct addrinfo)); - hints.ai_family = AF_UNSPEC; - hints.ai_socktype = SOCK_STREAM; - hints.ai_flags = socket_flags; - hints.ai_protocol = 0; + memset(&hints, 0, sizeof(struct addrinfo)); + hints.ai_family = AF_UNSPEC; + hints.ai_socktype = SOCK_STREAM; + hints.ai_flags = socket_flags; + hints.ai_protocol = 0; - auto service = std::to_string(port); + auto service = std::to_string(port); - if (getaddrinfo(host, service.c_str(), &hints, &result)) { - return INVALID_SOCKET; - } - - for (auto rp = result; rp; rp = rp->ai_next) { - // Create a socket - auto sock = socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol); - if (sock == INVALID_SOCKET) { - continue; - } - - // Make 'reuse address' option available - int yes = 1; - setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (char*)&yes, sizeof(yes)); - - // bind or connect - if (fn(sock, *rp)) { - freeaddrinfo(result); - return sock; - } - - close_socket(sock); - } - - freeaddrinfo(result); + if (getaddrinfo(host, service.c_str(), &hints, &result)) { return INVALID_SOCKET; + } + + for (auto rp = result; rp; rp = rp->ai_next) { + // Create a socket +#ifdef _WIN32 + auto sock = WSASocketW(rp->ai_family, rp->ai_socktype, rp->ai_protocol, + nullptr, 0, WSA_FLAG_NO_HANDLE_INHERIT); + /** + * Since the WSA_FLAG_NO_HANDLE_INHERIT is only supported on Windows 7 SP1 + * and above the socket creation fails on older Windows Systems. + * + * Let's try to create a socket the old way in this case. + * + * Reference: + * https://docs.microsoft.com/en-us/windows/win32/api/winsock2/nf-winsock2-wsasocketa + * + * WSA_FLAG_NO_HANDLE_INHERIT: + * This flag is supported on Windows 7 with SP1, Windows Server 2008 R2 with + * SP1, and later + * + */ + if (sock == INVALID_SOCKET) { + sock = socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol); + } +#else + auto sock = socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol); +#endif + if (sock == INVALID_SOCKET) { continue; } + +#ifndef _WIN32 + if (fcntl(sock, F_SETFD, FD_CLOEXEC) == -1) { continue; } +#endif + + // Make 'reuse address' option available + int yes = 1; + setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, reinterpret_cast(&yes), + sizeof(yes)); +#ifdef SO_REUSEPORT + setsockopt(sock, SOL_SOCKET, SO_REUSEPORT, reinterpret_cast(&yes), + sizeof(yes)); +#endif + + // bind or connect + if (fn(sock, *rp)) { + freeaddrinfo(result); + return sock; + } + + close_socket(sock); + } + + freeaddrinfo(result); + return INVALID_SOCKET; } -inline void set_nonblocking(socket_t sock, bool nonblocking) -{ +inline void set_nonblocking(socket_t sock, bool nonblocking) { #ifdef _WIN32 - auto flags = nonblocking ? 1UL : 0UL; - ioctlsocket(sock, FIONBIO, &flags); + auto flags = nonblocking ? 1UL : 0UL; + ioctlsocket(sock, FIONBIO, &flags); #else - auto flags = fcntl(sock, F_GETFL, 0); - fcntl(sock, F_SETFL, nonblocking ? (flags | O_NONBLOCK) : (flags & (~O_NONBLOCK))); + auto flags = fcntl(sock, F_GETFL, 0); + fcntl(sock, F_SETFL, + nonblocking ? (flags | O_NONBLOCK) : (flags & (~O_NONBLOCK))); #endif } -inline bool is_connection_error() -{ +inline bool is_connection_error() { #ifdef _WIN32 - return WSAGetLastError() != WSAEWOULDBLOCK; + return WSAGetLastError() != WSAEWOULDBLOCK; #else - return errno != EINPROGRESS; + return errno != EINPROGRESS; #endif } +inline bool bind_ip_address(socket_t sock, const char *host) { + struct addrinfo hints; + struct addrinfo *result; + + memset(&hints, 0, sizeof(struct addrinfo)); + hints.ai_family = AF_UNSPEC; + hints.ai_socktype = SOCK_STREAM; + hints.ai_protocol = 0; + + if (getaddrinfo(host, "0", &hints, &result)) { return false; } + + auto ret = false; + for (auto rp = result; rp; rp = rp->ai_next) { + const auto &ai = *rp; + if (!::bind(sock, ai.ai_addr, static_cast(ai.ai_addrlen))) { + ret = true; + break; + } + } + + freeaddrinfo(result); + return ret; +} + +inline std::string if2ip(const std::string &ifn) { +#ifndef _WIN32 + struct ifaddrs *ifap; + getifaddrs(&ifap); + for (auto ifa = ifap; ifa; ifa = ifa->ifa_next) { + if (ifa->ifa_addr && ifn == ifa->ifa_name) { + if (ifa->ifa_addr->sa_family == AF_INET) { + auto sa = reinterpret_cast(ifa->ifa_addr); + char buf[INET_ADDRSTRLEN]; + if (inet_ntop(AF_INET, &sa->sin_addr, buf, INET_ADDRSTRLEN)) { + freeifaddrs(ifap); + return std::string(buf, INET_ADDRSTRLEN); + } + } + } + } + freeifaddrs(ifap); +#endif + return std::string(); +} + +inline socket_t create_client_socket(const char *host, int port, + time_t timeout_sec, + const std::string &intf) { + return create_socket( + host, port, [&](socket_t sock, struct addrinfo &ai) -> bool { + if (!intf.empty()) { + auto ip = if2ip(intf); + if (ip.empty()) { ip = intf; } + if (!bind_ip_address(sock, ip.c_str())) { return false; } + } + + set_nonblocking(sock, true); + + auto ret = ::connect(sock, ai.ai_addr, static_cast(ai.ai_addrlen)); + if (ret < 0) { + if (is_connection_error() || + !wait_until_socket_is_ready(sock, timeout_sec, 0)) { + close_socket(sock); + return false; + } + } + + set_nonblocking(sock, false); + return true; + }); +} + inline std::string get_remote_addr(socket_t sock) { - struct sockaddr_storage addr; - socklen_t len = sizeof(addr); + struct sockaddr_storage addr; + socklen_t len = sizeof(addr); - if (!getpeername(sock, (struct sockaddr*)&addr, &len)) { - char ipstr[NI_MAXHOST]; + if (!getpeername(sock, reinterpret_cast(&addr), &len)) { + std::array ipstr{}; - if (!getnameinfo((struct sockaddr*)&addr, len, - ipstr, sizeof(ipstr), nullptr, 0, NI_NUMERICHOST)) { - return ipstr; - } + if (!getnameinfo(reinterpret_cast(&addr), len, + ipstr.data(), ipstr.size(), nullptr, 0, NI_NUMERICHOST)) { + return ipstr.data(); } + } - return std::string(); + return std::string(); } -inline bool is_file(const std::string& path) -{ - struct stat st; - return stat(path.c_str(), &st) >= 0 && S_ISREG(st.st_mode); +inline const char * +find_content_type(const std::string &path, + const std::map &user_data) { + auto ext = file_extension(path); + + auto it = user_data.find(ext); + if (it != user_data.end()) { return it->second.c_str(); } + + if (ext == "txt") { + return "text/plain"; + } else if (ext == "html" || ext == "htm") { + return "text/html"; + } else if (ext == "css") { + return "text/css"; + } else if (ext == "jpeg" || ext == "jpg") { + return "image/jpg"; + } else if (ext == "png") { + return "image/png"; + } else if (ext == "gif") { + return "image/gif"; + } else if (ext == "svg") { + return "image/svg+xml"; + } else if (ext == "ico") { + return "image/x-icon"; + } else if (ext == "json") { + return "application/json"; + } else if (ext == "pdf") { + return "application/pdf"; + } else if (ext == "js") { + return "application/javascript"; + } else if (ext == "wasm") { + return "application/wasm"; + } else if (ext == "xml") { + return "application/xml"; + } else if (ext == "xhtml") { + return "application/xhtml+xml"; + } + return nullptr; } -inline bool is_dir(const std::string& path) -{ - struct stat st; - return stat(path.c_str(), &st) >= 0 && S_ISDIR(st.st_mode); -} - -inline bool is_valid_path(const std::string& path) { - size_t level = 0; - size_t i = 0; - - // Skip slash - while (i < path.size() && path[i] == '/') { - i++; - } - - while (i < path.size()) { - // Read component - auto beg = i; - while (i < path.size() && path[i] != '/') { - i++; - } - - auto len = i - beg; - assert(len > 0); - - if (!path.compare(beg, len, ".")) { - ; - } else if (!path.compare(beg, len, "..")) { - if (level == 0) { - return false; - } - level--; - } else { - level++; - } - - // Skip slash - while (i < path.size() && path[i] == '/') { - i++; - } - } - - return true; -} - -inline void read_file(const std::string& path, std::string& out) -{ - std::ifstream fs(path, std::ios_base::binary); - fs.seekg(0, std::ios_base::end); - auto size = fs.tellg(); - fs.seekg(0); - out.resize(static_cast(size)); - fs.read(&out[0], size); -} - -inline std::string file_extension(const std::string& path) -{ - std::smatch m; - auto pat = std::regex("\\.([a-zA-Z0-9]+)$"); - if (std::regex_search(path, m, pat)) { - return m[1].str(); - } - return std::string(); -} - -inline const char* find_content_type(const std::string& path) -{ - auto ext = file_extension(path); - if (ext == "txt") { - return "text/plain"; - } else if (ext == "html") { - return "text/html"; - } else if (ext == "css") { - return "text/css"; - } else if (ext == "jpeg" || ext == "jpg") { - return "image/jpg"; - } else if (ext == "png") { - return "image/png"; - } else if (ext == "gif") { - return "image/gif"; - } else if (ext == "svg") { - return "image/svg+xml"; - } else if (ext == "ico") { - return "image/x-icon"; - } else if (ext == "json") { - return "application/json"; - } else if (ext == "pdf") { - return "application/pdf"; - } else if (ext == "js") { - return "application/javascript"; - } else if (ext == "xml") { - return "application/xml"; - } else if (ext == "xhtml") { - return "application/xhtml+xml"; - } - return nullptr; -} - -inline const char* status_message(int status) -{ - switch (status) { - case 200: return "OK"; - case 301: return "Moved Permanently"; - case 302: return "Found"; - case 303: return "See Other"; - case 304: return "Not Modified"; - case 400: return "Bad Request"; - case 403: return "Forbidden"; - case 404: return "Not Found"; - case 415: return "Unsupported Media Type"; - default: - case 500: return "Internal Server Error"; - } -} - -inline const char* get_header_value(const Headers& headers, const char* key, const char* def) -{ - auto it = headers.find(key); - if (it != headers.end()) { - return it->second.c_str(); - } - return def; -} - -inline int get_header_value_int(const Headers& headers, const char* key, int def) -{ - auto it = headers.find(key); - if (it != headers.end()) { - return std::stoi(it->second); - } - return def; -} - -inline bool read_headers(Stream& strm, Headers& headers) -{ - static std::regex re(R"((.+?):\s*(.+?)\s*\r\n)"); - - const auto bufsiz = 2048; - char buf[bufsiz]; - - stream_line_reader reader(strm, buf, bufsiz); - - for (;;) { - if (!reader.getline()) { - return false; - } - if (!strcmp(reader.ptr(), "\r\n")) { - break; - } - std::cmatch m; - if (std::regex_match(reader.ptr(), m, re)) { - auto key = std::string(m[1]); - auto val = std::string(m[2]); - headers.emplace(key, val); - } - } - - return true; -} - -inline bool read_content_with_length(Stream& strm, std::string& out, size_t len, Progress progress) -{ - out.assign(len, 0); - size_t r = 0; - while (r < len){ - auto n = strm.read(&out[r], len - r); - if (n <= 0) { - return false; - } - - r += n; - - if (progress) { - progress(r, len); - } - } - - return true; -} - -inline bool read_content_without_length(Stream& strm, std::string& out) -{ - for (;;) { - char byte; - auto n = strm.read(&byte, 1); - if (n < 0) { - return false; - } else if (n == 0) { - return true; - } - out += byte; - } - - return true; -} - -inline bool read_content_chunked(Stream& strm, std::string& out) -{ - const auto bufsiz = 16; - char buf[bufsiz]; - - stream_line_reader reader(strm, buf, bufsiz); - - if (!reader.getline()) { - return false; - } - - auto chunk_len = std::stoi(reader.ptr(), 0, 16); - - while (chunk_len > 0){ - std::string chunk; - if (!read_content_with_length(strm, chunk, chunk_len, nullptr)) { - return false; - } - - if (!reader.getline()) { - return false; - } - - if (strcmp(reader.ptr(), "\r\n")) { - break; - } - - out += chunk; - - if (!reader.getline()) { - return false; - } - - chunk_len = std::stoi(reader.ptr(), 0, 16); - } - - if (chunk_len == 0) { - // Reader terminator after chunks - if (!reader.getline() || strcmp(reader.ptr(), "\r\n")) - return false; - } - - return true; -} - -template -bool read_content(Stream& strm, T& x, Progress progress = Progress()) -{ - auto len = get_header_value_int(x.headers, "Content-Length", 0); - - if (len) { - return read_content_with_length(strm, x.body, len, progress); - } else { - const auto& encoding = get_header_value(x.headers, "Transfer-Encoding", ""); - - if (!strcasecmp(encoding, "chunked")) { - return read_content_chunked(strm, x.body); - } else { - return read_content_without_length(strm, x.body); - } - } - - return true; -} - -template -inline void write_headers(Stream& strm, const T& info) -{ - for (const auto& x: info.headers) { - strm.write_format("%s: %s\r\n", x.first.c_str(), x.second.c_str()); - } - strm.write("\r\n"); -} - -inline std::string encode_url(const std::string& s) -{ - std::string result; - - for (auto i = 0; s[i]; i++) { - switch (s[i]) { - case ' ': result += "+"; break; - case '\'': result += "%27"; break; - case ',': result += "%2C"; break; - case ':': result += "%3A"; break; - case ';': result += "%3B"; break; - default: - if (s[i] < 0) { - result += '%'; - char hex[4]; - size_t len = snprintf(hex, sizeof(hex) - 1, "%02X", (unsigned char)s[i]); - assert(len == 2); - result.append(hex, len); - } else { - result += s[i]; - } - break; - } - } - - return result; -} - -inline bool is_hex(char c, int& v) -{ - if (0x20 <= c && isdigit(c)) { - v = c - '0'; - return true; - } else if ('A' <= c && c <= 'F') { - v = c - 'A' + 10; - return true; - } else if ('a' <= c && c <= 'f') { - v = c - 'a' + 10; - return true; - } - return false; -} - -inline bool from_hex_to_i(const std::string& s, size_t i, size_t cnt, int& val) -{ - if (i >= s.size()) { - return false; - } - - val = 0; - for (; cnt; i++, cnt--) { - if (!s[i]) { - return false; - } - int v = 0; - if (is_hex(s[i], v)) { - val = val * 16 + v; - } else { - return false; - } - } - return true; -} - -inline size_t to_utf8(int code, char* buff) -{ - if (code < 0x0080) { - buff[0] = (code & 0x7F); - return 1; - } else if (code < 0x0800) { - buff[0] = (0xC0 | ((code >> 6) & 0x1F)); - buff[1] = (0x80 | (code & 0x3F)); - return 2; - } else if (code < 0xD800) { - buff[0] = (0xE0 | ((code >> 12) & 0xF)); - buff[1] = (0x80 | ((code >> 6) & 0x3F)); - buff[2] = (0x80 | (code & 0x3F)); - return 3; - } else if (code < 0xE000) { // D800 - DFFF is invalid... - return 0; - } else if (code < 0x10000) { - buff[0] = (0xE0 | ((code >> 12) & 0xF)); - buff[1] = (0x80 | ((code >> 6) & 0x3F)); - buff[2] = (0x80 | (code & 0x3F)); - return 3; - } else if (code < 0x110000) { - buff[0] = (0xF0 | ((code >> 18) & 0x7)); - buff[1] = (0x80 | ((code >> 12) & 0x3F)); - buff[2] = (0x80 | ((code >> 6) & 0x3F)); - buff[3] = (0x80 | (code & 0x3F)); - return 4; - } - - // NOTREACHED - return 0; -} - -inline std::string decode_url(const std::string& s) -{ - std::string result; - - for (size_t i = 0; i < s.size(); i++) { - if (s[i] == '%' && i + 1 < s.size()) { - if (s[i + 1] == 'u') { - int val = 0; - if (from_hex_to_i(s, i + 2, 4, val)) { - // 4 digits Unicode codes - char buff[4]; - size_t len = to_utf8(val, buff); - if (len > 0) { - result.append(buff, len); - } - i += 5; // 'u0000' - } else { - result += s[i]; - } - } else { - int val = 0; - if (from_hex_to_i(s, i + 1, 2, val)) { - // 2 digits hex codes - result += val; - i += 2; // '00' - } else { - result += s[i]; - } - } - } else if (s[i] == '+') { - result += ' '; - } else { - result += s[i]; - } - } - - return result; -} - -inline void parse_query_text(const std::string& s, Params& params) -{ - split(&s[0], &s[s.size()], '&', [&](const char* b, const char* e) { - std::string key; - std::string val; - split(b, e, '=', [&](const char* b, const char* e) { - if (key.empty()) { - key.assign(b, e); - } else { - val.assign(b, e); - } - }); - params.emplace(key, decode_url(val)); - }); -} - -inline bool parse_multipart_boundary(const std::string& content_type, std::string& boundary) -{ - auto pos = content_type.find("boundary="); - if (pos == std::string::npos) { - return false; - } - - boundary = content_type.substr(pos + 9); - return true; -} - -inline bool parse_multipart_formdata( - const std::string& boundary, const std::string& body, MultipartFiles& files) -{ - static std::string dash = "--"; - static std::string crlf = "\r\n"; - - static std::regex re_content_type( - "Content-Type: (.*?)", std::regex_constants::icase); - - static std::regex re_content_disposition( - "Content-Disposition: form-data; name=\"(.*?)\"(?:; filename=\"(.*?)\")?", - std::regex_constants::icase); - - auto dash_boundary = dash + boundary; - - auto pos = body.find(dash_boundary); - if (pos != 0) { - return false; - } - - pos += dash_boundary.size(); - - auto next_pos = body.find(crlf, pos); - if (next_pos == std::string::npos) { - return false; - } - - pos = next_pos + crlf.size(); - - while (pos < body.size()) { - next_pos = body.find(crlf, pos); - if (next_pos == std::string::npos) { - return false; - } - - std::string name; - MultipartFile file; - - auto header = body.substr(pos, (next_pos - pos)); - - while (pos != next_pos) { - std::smatch m; - if (std::regex_match(header, m, re_content_type)) { - file.content_type = m[1]; - } else if (std::regex_match(header, m, re_content_disposition)) { - name = m[1]; - file.filename = m[2]; - } - - pos = next_pos + crlf.size(); - - next_pos = body.find(crlf, pos); - if (next_pos == std::string::npos) { - return false; - } - - header = body.substr(pos, (next_pos - pos)); - } - - pos = next_pos + crlf.size(); - - next_pos = body.find(crlf + dash_boundary, pos); - - if (next_pos == std::string::npos) { - return false; - } - - file.offset = pos; - file.length = next_pos - pos; - - pos = next_pos + crlf.size() + dash_boundary.size(); - - next_pos = body.find(crlf, pos); - if (next_pos == std::string::npos) { - return false; - } - - files.emplace(name, file); - - pos = next_pos + crlf.size(); - } - - return true; -} - -inline std::string to_lower(const char* beg, const char* end) -{ - std::string out; - auto it = beg; - while (it != end) { - out += ::tolower(*it); - it++; - } - return out; -} - -inline void make_range_header_core(std::string&) {} - -template -inline void make_range_header_core(std::string& field, uint64_t value) -{ - if (!field.empty()) { - field += ", "; - } - field += std::to_string(value) + "-"; -} - -template -inline void make_range_header_core(std::string& field, uint64_t value1, uint64_t value2, Args... args) -{ - if (!field.empty()) { - field += ", "; - } - field += std::to_string(value1) + "-" + std::to_string(value2); - make_range_header_core(field, args...); +inline const char *status_message(int status) { + switch (status) { + case 200: return "OK"; + case 202: return "Accepted"; + case 204: return "No Content"; + case 206: return "Partial Content"; + case 301: return "Moved Permanently"; + case 302: return "Found"; + case 303: return "See Other"; + case 304: return "Not Modified"; + case 400: return "Bad Request"; + case 401: return "Unauthorized"; + case 403: return "Forbidden"; + case 404: return "Not Found"; + case 413: return "Payload Too Large"; + case 414: return "Request-URI Too Long"; + case 415: return "Unsupported Media Type"; + case 416: return "Range Not Satisfiable"; + case 503: return "Service Unavailable"; + + default: + case 500: return "Internal Server Error"; + } } #ifdef CPPHTTPLIB_ZLIB_SUPPORT -inline bool can_compress(const std::string& content_type) { - return !content_type.find("text/") || - content_type == "image/svg+xml" || - content_type == "application/javascript" || - content_type == "application/json" || - content_type == "application/xml" || - content_type == "application/xhtml+xml"; +inline bool can_compress(const std::string &content_type) { + return !content_type.find("text/") || content_type == "image/svg+xml" || + content_type == "application/javascript" || + content_type == "application/json" || + content_type == "application/xml" || + content_type == "application/xhtml+xml"; } -inline void compress(std::string& content) -{ - z_stream strm; +inline bool compress(std::string &content) { + z_stream strm; + strm.zalloc = Z_NULL; + strm.zfree = Z_NULL; + strm.opaque = Z_NULL; + + auto ret = deflateInit2(&strm, Z_DEFAULT_COMPRESSION, Z_DEFLATED, 31, 8, + Z_DEFAULT_STRATEGY); + if (ret != Z_OK) { return false; } + + strm.avail_in = content.size(); + strm.next_in = + const_cast(reinterpret_cast(content.data())); + + std::string compressed; + + std::array buff{}; + do { + strm.avail_out = buff.size(); + strm.next_out = reinterpret_cast(buff.data()); + ret = deflate(&strm, Z_FINISH); + assert(ret != Z_STREAM_ERROR); + compressed.append(buff.data(), buff.size() - strm.avail_out); + } while (strm.avail_out == 0); + + assert(ret == Z_STREAM_END); + assert(strm.avail_in == 0); + + content.swap(compressed); + + deflateEnd(&strm); + return true; +} + +class decompressor { +public: + decompressor() { strm.zalloc = Z_NULL; strm.zfree = Z_NULL; strm.opaque = Z_NULL; - auto ret = deflateInit2(&strm, Z_DEFAULT_COMPRESSION, Z_DEFLATED, 31, 8, Z_DEFAULT_STRATEGY); - if (ret != Z_OK) { - return; - } + // 15 is the value of wbits, which should be at the maximum possible value + // to ensure that any gzip stream can be decoded. The offset of 16 specifies + // that the stream to decompress will be formatted with a gzip wrapper. + is_valid_ = inflateInit2(&strm, 16 + 15) == Z_OK; + } - strm.avail_in = content.size(); - strm.next_in = (Bytef *)content.data(); + ~decompressor() { inflateEnd(&strm); } - std::string compressed; + bool is_valid() const { return is_valid_; } - const auto bufsiz = 16384; - char buff[bufsiz]; + template + bool decompress(const char *data, size_t data_length, T callback) { + int ret = Z_OK; + + strm.avail_in = data_length; + strm.next_in = const_cast(reinterpret_cast(data)); + + std::array buff{}; do { - strm.avail_out = bufsiz; - strm.next_out = (Bytef *)buff; - deflate(&strm, Z_FINISH); - compressed.append(buff, bufsiz - strm.avail_out); + strm.avail_out = buff.size(); + strm.next_out = reinterpret_cast(buff.data()); + + ret = inflate(&strm, Z_NO_FLUSH); + assert(ret != Z_STREAM_ERROR); + switch (ret) { + case Z_NEED_DICT: + case Z_DATA_ERROR: + case Z_MEM_ERROR: inflateEnd(&strm); return false; + } + + if (!callback(buff.data(), buff.size() - strm.avail_out)) { + return false; + } } while (strm.avail_out == 0); - content.swap(compressed); + return ret == Z_OK || ret == Z_STREAM_END; + } - deflateEnd(&strm); +private: + bool is_valid_; + z_stream strm; +}; +#endif + +inline bool has_header(const Headers &headers, const char *key) { + return headers.find(key) != headers.end(); } -inline void decompress(std::string& content) -{ - z_stream strm; - strm.zalloc = Z_NULL; - strm.zfree = Z_NULL; - strm.opaque = Z_NULL; +inline const char *get_header_value(const Headers &headers, const char *key, + size_t id = 0, const char *def = nullptr) { + auto it = headers.find(key); + std::advance(it, id); + if (it != headers.end()) { return it->second.c_str(); } + return def; +} - // 15 is the value of wbits, which should be at the maximum possible value to ensure - // that any gzip stream can be decoded. The offset of 16 specifies that the stream - // to decompress will be formatted with a gzip wrapper. - auto ret = inflateInit2(&strm, 16 + 15); - if (ret != Z_OK) { - return; +inline uint64_t get_header_value_uint64(const Headers &headers, const char *key, + int def = 0) { + auto it = headers.find(key); + if (it != headers.end()) { + return std::strtoull(it->second.data(), nullptr, 10); + } + return def; +} + +inline bool read_headers(Stream &strm, Headers &headers) { + const auto bufsiz = 2048; + char buf[bufsiz]; + stream_line_reader line_reader(strm, buf, bufsiz); + + for (;;) { + if (!line_reader.getline()) { return false; } + + // Check if the line ends with CRLF. + if (line_reader.end_with_crlf()) { + // Blank line indicates end of headers. + if (line_reader.size() == 2) { break; } + } else { + continue; // Skip invalid line. } - strm.avail_in = content.size(); - strm.next_in = (Bytef *)content.data(); + // Skip trailing spaces and tabs. + auto end = line_reader.ptr() + line_reader.size() - 2; + while (line_reader.ptr() < end && (end[-1] == ' ' || end[-1] == '\t')) { + end--; + } - std::string decompressed; + // Horizontal tab and ' ' are considered whitespace and are ignored when on + // the left or right side of the header value: + // - https://stackoverflow.com/questions/50179659/ + // - https://www.w3.org/Protocols/rfc2616/rfc2616-sec4.html + static const std::regex re(R"((.+?):[\t ]*(.+))"); - const auto bufsiz = 16384; - char buff[bufsiz]; - do { - strm.avail_out = bufsiz; - strm.next_out = (Bytef *)buff; - inflate(&strm, Z_NO_FLUSH); - decompressed.append(buff, bufsiz - strm.avail_out); - } while (strm.avail_out == 0); + std::cmatch m; + if (std::regex_match(line_reader.ptr(), end, m, re)) { + auto key = std::string(m[1]); + auto val = std::string(m[2]); + headers.emplace(key, val); + } + } - content.swap(decompressed); + return true; +} - inflateEnd(&strm); +inline bool read_content_with_length(Stream &strm, uint64_t len, + Progress progress, ContentReceiver out) { + char buf[CPPHTTPLIB_RECV_BUFSIZ]; + + uint64_t r = 0; + while (r < len) { + auto read_len = static_cast(len - r); + auto n = strm.read(buf, std::min(read_len, CPPHTTPLIB_RECV_BUFSIZ)); + if (n <= 0) { return false; } + + if (!out(buf, n)) { return false; } + + r += n; + + if (progress) { + if (!progress(r, len)) { return false; } + } + } + + return true; +} + +inline void skip_content_with_length(Stream &strm, uint64_t len) { + char buf[CPPHTTPLIB_RECV_BUFSIZ]; + uint64_t r = 0; + while (r < len) { + auto read_len = static_cast(len - r); + auto n = strm.read(buf, std::min(read_len, CPPHTTPLIB_RECV_BUFSIZ)); + if (n <= 0) { return; } + r += n; + } +} + +inline bool read_content_without_length(Stream &strm, ContentReceiver out) { + char buf[CPPHTTPLIB_RECV_BUFSIZ]; + for (;;) { + auto n = strm.read(buf, CPPHTTPLIB_RECV_BUFSIZ); + if (n < 0) { + return false; + } else if (n == 0) { + return true; + } + if (!out(buf, n)) { return false; } + } + + return true; +} + +inline bool read_content_chunked(Stream &strm, ContentReceiver out) { + const auto bufsiz = 16; + char buf[bufsiz]; + + stream_line_reader line_reader(strm, buf, bufsiz); + + if (!line_reader.getline()) { return false; } + + auto chunk_len = std::stoi(line_reader.ptr(), 0, 16); + + while (chunk_len > 0) { + if (!read_content_with_length(strm, chunk_len, nullptr, out)) { + return false; + } + + if (!line_reader.getline()) { return false; } + + if (strcmp(line_reader.ptr(), "\r\n")) { break; } + + if (!line_reader.getline()) { return false; } + + chunk_len = std::stoi(line_reader.ptr(), 0, 16); + } + + if (chunk_len == 0) { + // Reader terminator after chunks + if (!line_reader.getline() || strcmp(line_reader.ptr(), "\r\n")) + return false; + } + + return true; +} + +inline bool is_chunked_transfer_encoding(const Headers &headers) { + return !strcasecmp(get_header_value(headers, "Transfer-Encoding", 0, ""), + "chunked"); +} + +template +bool read_content(Stream &strm, T &x, size_t payload_max_length, int &status, + Progress progress, ContentReceiver receiver) { + + ContentReceiver out = [&](const char *buf, size_t n) { + return receiver(buf, n); + }; + +#ifdef CPPHTTPLIB_ZLIB_SUPPORT + decompressor decompressor; + + if (!decompressor.is_valid()) { + status = 500; + return false; + } + + if (x.get_header_value("Content-Encoding") == "gzip") { + out = [&](const char *buf, size_t n) { + return decompressor.decompress( + buf, n, [&](const char *buf, size_t n) { return receiver(buf, n); }); + }; + } +#else + if (x.get_header_value("Content-Encoding") == "gzip") { + status = 415; + return false; + } +#endif + + auto ret = true; + auto exceed_payload_max_length = false; + + if (is_chunked_transfer_encoding(x.headers)) { + ret = read_content_chunked(strm, out); + } else if (!has_header(x.headers, "Content-Length")) { + ret = read_content_without_length(strm, out); + } else { + auto len = get_header_value_uint64(x.headers, "Content-Length", 0); + if (len > payload_max_length) { + exceed_payload_max_length = true; + skip_content_with_length(strm, len); + ret = false; + } else if (len > 0) { + ret = read_content_with_length(strm, len, progress, out); + } + } + + if (!ret) { status = exceed_payload_max_length ? 413 : 400; } + + return ret; +} + +template +inline int write_headers(Stream &strm, const T &info, const Headers &headers) { + auto write_len = 0; + for (const auto &x : info.headers) { + auto len = + strm.write_format("%s: %s\r\n", x.first.c_str(), x.second.c_str()); + if (len < 0) { return len; } + write_len += len; + } + for (const auto &x : headers) { + auto len = + strm.write_format("%s: %s\r\n", x.first.c_str(), x.second.c_str()); + if (len < 0) { return len; } + write_len += len; + } + auto len = strm.write("\r\n"); + if (len < 0) { return len; } + write_len += len; + return write_len; +} + +inline ssize_t write_content(Stream &strm, ContentProvider content_provider, + size_t offset, size_t length) { + size_t begin_offset = offset; + size_t end_offset = offset + length; + while (offset < end_offset) { + ssize_t written_length = 0; + + DataSink data_sink; + data_sink.write = [&](const char *d, size_t l) { + offset += l; + written_length = strm.write(d, l); + }; + data_sink.done = [&](void) { written_length = -1; }; + data_sink.is_writable = [&](void) { return strm.is_writable(); }; + + content_provider(offset, end_offset - offset, data_sink); + if (written_length < 0) { return written_length; } + } + return static_cast(offset - begin_offset); +} + +template +inline ssize_t write_content_chunked(Stream &strm, + ContentProvider content_provider, + T is_shutting_down) { + size_t offset = 0; + auto data_available = true; + ssize_t total_written_length = 0; + while (data_available && !is_shutting_down()) { + ssize_t written_length = 0; + + DataSink data_sink; + data_sink.write = [&](const char *d, size_t l) { + data_available = l > 0; + offset += l; + + // Emit chunked response header and footer for each chunk + auto chunk = from_i_to_hex(l) + "\r\n" + std::string(d, l) + "\r\n"; + written_length = strm.write(chunk); + }; + data_sink.done = [&](void) { + data_available = false; + written_length = strm.write("0\r\n\r\n"); + }; + data_sink.is_writable = [&](void) { return strm.is_writable(); }; + + content_provider(offset, 0, data_sink); + + if (written_length < 0) { return written_length; } + total_written_length += written_length; + } + return total_written_length; +} + +template +inline bool redirect(T &cli, const Request &req, Response &res, + const std::string &path) { + Request new_req = req; + new_req.path = path; + new_req.redirect_count -= 1; + + Response new_res; + + auto ret = cli.send(new_req, new_res); + if (ret) { res = new_res; } + return ret; +} + +inline std::string encode_url(const std::string &s) { + std::string result; + + for (auto i = 0; s[i]; i++) { + switch (s[i]) { + case ' ': result += "%20"; break; + case '+': result += "%2B"; break; + case '\r': result += "%0D"; break; + case '\n': result += "%0A"; break; + case '\'': result += "%27"; break; + case ',': result += "%2C"; break; + // case ':': result += "%3A"; break; // ok? probably... + case ';': result += "%3B"; break; + default: + auto c = static_cast(s[i]); + if (c >= 0x80) { + result += '%'; + char hex[4]; + size_t len = snprintf(hex, sizeof(hex) - 1, "%02X", c); + assert(len == 2); + result.append(hex, len); + } else { + result += s[i]; + } + break; + } + } + + return result; +} + +inline std::string decode_url(const std::string &s) { + std::string result; + + for (size_t i = 0; i < s.size(); i++) { + if (s[i] == '%' && i + 1 < s.size()) { + if (s[i + 1] == 'u') { + int val = 0; + if (from_hex_to_i(s, i + 2, 4, val)) { + // 4 digits Unicode codes + char buff[4]; + size_t len = to_utf8(val, buff); + if (len > 0) { result.append(buff, len); } + i += 5; // 'u0000' + } else { + result += s[i]; + } + } else { + int val = 0; + if (from_hex_to_i(s, i + 1, 2, val)) { + // 2 digits hex codes + result += static_cast(val); + i += 2; // '00' + } else { + result += s[i]; + } + } + } else if (s[i] == '+') { + result += ' '; + } else { + result += s[i]; + } + } + + return result; +} + +inline void parse_query_text(const std::string &s, Params ¶ms) { + split(&s[0], &s[s.size()], '&', [&](const char *b, const char *e) { + std::string key; + std::string val; + split(b, e, '=', [&](const char *b, const char *e) { + if (key.empty()) { + key.assign(b, e); + } else { + val.assign(b, e); + } + }); + params.emplace(key, decode_url(val)); + }); +} + +inline bool parse_multipart_boundary(const std::string &content_type, + std::string &boundary) { + auto pos = content_type.find("boundary="); + if (pos == std::string::npos) { return false; } + + boundary = content_type.substr(pos + 9); + return true; +} + +inline bool parse_range_header(const std::string &s, Ranges &ranges) { + static auto re_first_range = std::regex(R"(bytes=(\d*-\d*(?:,\s*\d*-\d*)*))"); + std::smatch m; + if (std::regex_match(s, m, re_first_range)) { + auto pos = m.position(1); + auto len = m.length(1); + bool all_valid_ranges = true; + split(&s[pos], &s[pos + len], ',', [&](const char *b, const char *e) { + if (!all_valid_ranges) return; + static auto re_another_range = std::regex(R"(\s*(\d*)-(\d*))"); + std::cmatch m; + if (std::regex_match(b, e, m, re_another_range)) { + ssize_t first = -1; + if (!m.str(1).empty()) { + first = static_cast(std::stoll(m.str(1))); + } + + ssize_t last = -1; + if (!m.str(2).empty()) { + last = static_cast(std::stoll(m.str(2))); + } + + if (first != -1 && last != -1 && first > last) { + all_valid_ranges = false; + return; + } + ranges.emplace_back(std::make_pair(first, last)); + } + }); + return all_valid_ranges; + } + return false; +} + +class MultipartFormDataParser { +public: + MultipartFormDataParser() {} + + void set_boundary(const std::string &boundary) { boundary_ = boundary; } + + bool is_valid() const { return is_valid_; } + + template + bool parse(const char *buf, size_t n, T content_callback, U header_callback) { + static const std::regex re_content_type(R"(^Content-Type:\s*(.*?)\s*$)", + std::regex_constants::icase); + + static const std::regex re_content_disposition( + "^Content-Disposition:\\s*form-data;\\s*name=\"(.*?)\"(?:;\\s*filename=" + "\"(.*?)\")?\\s*$", + std::regex_constants::icase); + + buf_.append(buf, n); // TODO: performance improvement + + while (!buf_.empty()) { + switch (state_) { + case 0: { // Initial boundary + auto pattern = dash_ + boundary_ + crlf_; + if (pattern.size() > buf_.size()) { return true; } + auto pos = buf_.find(pattern); + if (pos != 0) { + is_done_ = true; + return false; + } + buf_.erase(0, pattern.size()); + off_ += pattern.size(); + state_ = 1; + break; + } + case 1: { // New entry + clear_file_info(); + state_ = 2; + break; + } + case 2: { // Headers + auto pos = buf_.find(crlf_); + while (pos != std::string::npos) { + // Empty line + if (pos == 0) { + if (!header_callback(file_)) { + is_valid_ = false; + is_done_ = false; + return false; + } + buf_.erase(0, crlf_.size()); + off_ += crlf_.size(); + state_ = 3; + break; + } + + auto header = buf_.substr(0, pos); + { + std::smatch m; + if (std::regex_match(header, m, re_content_type)) { + file_.content_type = m[1]; + } else if (std::regex_match(header, m, re_content_disposition)) { + file_.name = m[1]; + file_.filename = m[2]; + } + } + + buf_.erase(0, pos + crlf_.size()); + off_ += pos + crlf_.size(); + pos = buf_.find(crlf_); + } + break; + } + case 3: { // Body + { + auto pattern = crlf_ + dash_; + if (pattern.size() > buf_.size()) { return true; } + + auto pos = buf_.find(pattern); + if (pos == std::string::npos) { pos = buf_.size(); } + if (!content_callback(buf_.data(), pos)) { + is_valid_ = false; + is_done_ = false; + return false; + } + + off_ += pos; + buf_.erase(0, pos); + } + + { + auto pattern = crlf_ + dash_ + boundary_; + if (pattern.size() > buf_.size()) { return true; } + + auto pos = buf_.find(pattern); + if (pos != std::string::npos) { + if (!content_callback(buf_.data(), pos)) { + is_valid_ = false; + is_done_ = false; + return false; + } + + off_ += pos + pattern.size(); + buf_.erase(0, pos + pattern.size()); + state_ = 4; + } else { + if (!content_callback(buf_.data(), pattern.size())) { + is_valid_ = false; + is_done_ = false; + return false; + } + + off_ += pattern.size(); + buf_.erase(0, pattern.size()); + } + } + break; + } + case 4: { // Boundary + if (crlf_.size() > buf_.size()) { return true; } + if (buf_.find(crlf_) == 0) { + buf_.erase(0, crlf_.size()); + off_ += crlf_.size(); + state_ = 1; + } else { + auto pattern = dash_ + crlf_; + if (pattern.size() > buf_.size()) { return true; } + if (buf_.find(pattern) == 0) { + buf_.erase(0, pattern.size()); + off_ += pattern.size(); + is_valid_ = true; + state_ = 5; + } else { + is_done_ = true; + return true; + } + } + break; + } + case 5: { // Done + is_valid_ = false; + return false; + } + } + } + + return true; + } + +private: + void clear_file_info() { + file_.name.clear(); + file_.filename.clear(); + file_.content_type.clear(); + } + + const std::string dash_ = "--"; + const std::string crlf_ = "\r\n"; + std::string boundary_; + + std::string buf_; + size_t state_ = 0; + size_t is_valid_ = false; + size_t is_done_ = false; + size_t off_ = 0; + MultipartFormData file_; +}; + +inline std::string to_lower(const char *beg, const char *end) { + std::string out; + auto it = beg; + while (it != end) { + out += static_cast(::tolower(*it)); + it++; + } + return out; +} + +inline std::string make_multipart_data_boundary() { + static const char data[] = + "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"; + + std::random_device seed_gen; + std::mt19937 engine(seed_gen()); + + std::string result = "--cpp-httplib-multipart-data-"; + + for (auto i = 0; i < 16; i++) { + result += data[engine() % (sizeof(data) - 1)]; + } + + return result; +} + +inline std::pair +get_range_offset_and_length(const Request &req, size_t content_length, + size_t index) { + auto r = req.ranges[index]; + + if (r.first == -1 && r.second == -1) { + return std::make_pair(0, content_length); + } + + if (r.first == -1) { + r.first = content_length - r.second; + r.second = content_length - 1; + } + + if (r.second == -1) { r.second = content_length - 1; } + + return std::make_pair(r.first, r.second - r.first + 1); +} + +inline std::string make_content_range_header_field(size_t offset, size_t length, + size_t content_length) { + std::string field = "bytes "; + field += std::to_string(offset); + field += "-"; + field += std::to_string(offset + length - 1); + field += "/"; + field += std::to_string(content_length); + return field; +} + +template +bool process_multipart_ranges_data(const Request &req, Response &res, + const std::string &boundary, + const std::string &content_type, + SToken stoken, CToken ctoken, + Content content) { + for (size_t i = 0; i < req.ranges.size(); i++) { + ctoken("--"); + stoken(boundary); + ctoken("\r\n"); + if (!content_type.empty()) { + ctoken("Content-Type: "); + stoken(content_type); + ctoken("\r\n"); + } + + auto offsets = get_range_offset_and_length(req, res.body.size(), i); + auto offset = offsets.first; + auto length = offsets.second; + + ctoken("Content-Range: "); + stoken(make_content_range_header_field(offset, length, res.body.size())); + ctoken("\r\n"); + ctoken("\r\n"); + if (!content(offset, length)) { return false; } + ctoken("\r\n"); + } + + ctoken("--"); + stoken(boundary); + ctoken("--\r\n"); + + return true; +} + +inline std::string make_multipart_ranges_data(const Request &req, Response &res, + const std::string &boundary, + const std::string &content_type) { + std::string data; + + process_multipart_ranges_data( + req, res, boundary, content_type, + [&](const std::string &token) { data += token; }, + [&](const char *token) { data += token; }, + [&](size_t offset, size_t length) { + data += res.body.substr(offset, length); + return true; + }); + + return data; +} + +inline size_t +get_multipart_ranges_data_length(const Request &req, Response &res, + const std::string &boundary, + const std::string &content_type) { + size_t data_length = 0; + + process_multipart_ranges_data( + req, res, boundary, content_type, + [&](const std::string &token) { data_length += token.size(); }, + [&](const char *token) { data_length += strlen(token); }, + [&](size_t /*offset*/, size_t length) { + data_length += length; + return true; + }); + + return data_length; +} + +inline bool write_multipart_ranges_data(Stream &strm, const Request &req, + Response &res, + const std::string &boundary, + const std::string &content_type) { + return process_multipart_ranges_data( + req, res, boundary, content_type, + [&](const std::string &token) { strm.write(token); }, + [&](const char *token) { strm.write(token); }, + [&](size_t offset, size_t length) { + return write_content(strm, res.content_provider, offset, length) >= 0; + }); +} + +inline std::pair +get_range_offset_and_length(const Request &req, const Response &res, + size_t index) { + auto r = req.ranges[index]; + + if (r.second == -1) { r.second = res.content_length - 1; } + + return std::make_pair(r.first, r.second - r.first + 1); +} + +inline bool expect_content(const Request &req) { + if (req.method == "POST" || req.method == "PUT" || req.method == "PATCH" || + req.method == "PRI") { + return true; + } + // TODO: check if Content-Length is set + return false; +} + +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT +template +inline std::string message_digest(const std::string &s, Init init, + Update update, Final final, + size_t digest_length) { + using namespace std; + + std::vector md(digest_length, 0); + CTX ctx; + init(&ctx); + update(&ctx, s.data(), s.size()); + final(md.data(), &ctx); + + stringstream ss; + for (auto c : md) { + ss << setfill('0') << setw(2) << hex << (unsigned int)c; + } + return ss.str(); +} + +inline std::string MD5(const std::string &s) { + return message_digest(s, MD5_Init, MD5_Update, MD5_Final, + MD5_DIGEST_LENGTH); +} + +inline std::string SHA_256(const std::string &s) { + return message_digest(s, SHA256_Init, SHA256_Update, SHA256_Final, + SHA256_DIGEST_LENGTH); +} + +inline std::string SHA_512(const std::string &s) { + return message_digest(s, SHA512_Init, SHA512_Update, SHA512_Final, + SHA512_DIGEST_LENGTH); } #endif #ifdef _WIN32 class WSInit { public: - WSInit() { - WSADATA wsaData; - WSAStartup(0x0002, &wsaData); - } + WSInit() { + WSADATA wsaData; + WSAStartup(0x0002, &wsaData); + } - ~WSInit() { - WSACleanup(); - } + ~WSInit() { WSACleanup(); } }; static WSInit wsinit_; @@ -1275,876 +2502,1804 @@ static WSInit wsinit_; } // namespace detail // Header utilities -template -inline std::pair make_range_header(uint64_t value, Args... args) -{ - std::string field; - detail::make_range_header_core(field, value, args...); - field.insert(0, "bytes="); - return std::make_pair("Range", field); +inline std::pair make_range_header(Ranges ranges) { + std::string field = "bytes="; + auto i = 0; + for (auto r : ranges) { + if (i != 0) { field += ", "; } + if (r.first != -1) { field += std::to_string(r.first); } + field += '-'; + if (r.second != -1) { field += std::to_string(r.second); } + i++; + } + return std::make_pair("Range", field); +} + +inline std::pair +make_basic_authentication_header(const std::string &username, + const std::string &password, + bool is_proxy = false) { + auto field = "Basic " + detail::base64_encode(username + ":" + password); + auto key = is_proxy ? "Proxy-Authorization" : "Authorization"; + return std::make_pair(key, field); +} + +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT +inline std::pair make_digest_authentication_header( + const Request &req, const std::map &auth, + size_t cnonce_count, const std::string &cnonce, const std::string &username, + const std::string &password, bool is_proxy = false) { + using namespace std; + + string nc; + { + stringstream ss; + ss << setfill('0') << setw(8) << hex << cnonce_count; + nc = ss.str(); + } + + auto qop = auth.at("qop"); + if (qop.find("auth-int") != std::string::npos) { + qop = "auth-int"; + } else { + qop = "auth"; + } + + std::string algo = "MD5"; + if (auth.find("algorithm") != auth.end()) { algo = auth.at("algorithm"); } + + string response; + { + auto H = algo == "SHA-256" + ? detail::SHA_256 + : algo == "SHA-512" ? detail::SHA_512 : detail::MD5; + + auto A1 = username + ":" + auth.at("realm") + ":" + password; + + auto A2 = req.method + ":" + req.path; + if (qop == "auth-int") { A2 += ":" + H(req.body); } + + response = H(H(A1) + ":" + auth.at("nonce") + ":" + nc + ":" + cnonce + + ":" + qop + ":" + H(A2)); + } + + auto field = "Digest username=\"hello\", realm=\"" + auth.at("realm") + + "\", nonce=\"" + auth.at("nonce") + "\", uri=\"" + req.path + + "\", algorithm=" + algo + ", qop=" + qop + ", nc=\"" + nc + + "\", cnonce=\"" + cnonce + "\", response=\"" + response + "\""; + + auto key = is_proxy ? "Proxy-Authorization" : "Authorization"; + return std::make_pair(key, field); +} +#endif + +inline bool parse_www_authenticate(const httplib::Response &res, + std::map &auth, + bool is_proxy) { + auto key = is_proxy ? "Proxy-Authenticate" : "WWW-Authenticate"; + if (res.has_header(key)) { + static auto re = std::regex(R"~((?:(?:,\s*)?(.+?)=(?:"(.*?)"|([^,]*))))~"); + auto s = res.get_header_value(key); + auto pos = s.find(' '); + if (pos != std::string::npos) { + auto type = s.substr(0, pos); + if (type == "Basic") { + return false; + } else if (type == "Digest") { + s = s.substr(pos + 1); + auto beg = std::sregex_iterator(s.begin(), s.end(), re); + for (auto i = beg; i != std::sregex_iterator(); ++i) { + auto m = *i; + auto key = s.substr(m.position(1), m.length(1)); + auto val = m.length(2) > 0 ? s.substr(m.position(2), m.length(2)) + : s.substr(m.position(3), m.length(3)); + auth[key] = val; + } + return true; + } + } + } + return false; +} + +// https://stackoverflow.com/questions/440133/how-do-i-create-a-random-alpha-numeric-string-in-c/440240#answer-440240 +inline std::string random_string(size_t length) { + auto randchar = []() -> char { + const char charset[] = "0123456789" + "ABCDEFGHIJKLMNOPQRSTUVWXYZ" + "abcdefghijklmnopqrstuvwxyz"; + const size_t max_index = (sizeof(charset) - 1); + return charset[rand() % max_index]; + }; + std::string str(length, 0); + std::generate_n(str.begin(), length, randchar); + return str; } // Request implementation -inline bool Request::has_header(const char* key) const -{ - return headers.find(key) != headers.end(); +inline bool Request::has_header(const char *key) const { + return detail::has_header(headers, key); } -inline std::string Request::get_header_value(const char* key) const -{ - return detail::get_header_value(headers, key, ""); +inline std::string Request::get_header_value(const char *key, size_t id) const { + return detail::get_header_value(headers, key, id, ""); } -inline void Request::set_header(const char* key, const char* val) -{ - headers.emplace(key, val); +inline size_t Request::get_header_value_count(const char *key) const { + auto r = headers.equal_range(key); + return std::distance(r.first, r.second); } -inline bool Request::has_param(const char* key) const -{ - return params.find(key) != params.end(); +inline void Request::set_header(const char *key, const char *val) { + headers.emplace(key, val); } -inline std::string Request::get_param_value(const char* key) const -{ - auto it = params.find(key); - if (it != params.end()) { - return it->second; - } - return std::string(); +inline void Request::set_header(const char *key, const std::string &val) { + headers.emplace(key, val); } -inline bool Request::has_file(const char* key) const -{ - return files.find(key) != files.end(); +inline bool Request::has_param(const char *key) const { + return params.find(key) != params.end(); } -inline MultipartFile Request::get_file_value(const char* key) const -{ - auto it = files.find(key); - if (it != files.end()) { - return it->second; - } - return MultipartFile(); +inline std::string Request::get_param_value(const char *key, size_t id) const { + auto it = params.find(key); + std::advance(it, id); + if (it != params.end()) { return it->second; } + return std::string(); +} + +inline size_t Request::get_param_value_count(const char *key) const { + auto r = params.equal_range(key); + return std::distance(r.first, r.second); +} + +inline bool Request::is_multipart_form_data() const { + const auto &content_type = get_header_value("Content-Type"); + return !content_type.find("multipart/form-data"); +} + +inline bool Request::has_file(const char *key) const { + return files.find(key) != files.end(); +} + +inline MultipartFormData Request::get_file_value(const char *key) const { + auto it = files.find(key); + if (it != files.end()) { return it->second; } + return MultipartFormData(); } // Response implementation -inline bool Response::has_header(const char* key) const -{ - return headers.find(key) != headers.end(); +inline bool Response::has_header(const char *key) const { + return headers.find(key) != headers.end(); } -inline std::string Response::get_header_value(const char* key) const -{ - return detail::get_header_value(headers, key, ""); +inline std::string Response::get_header_value(const char *key, + size_t id) const { + return detail::get_header_value(headers, key, id, ""); } -inline void Response::set_header(const char* key, const char* val) -{ - headers.emplace(key, val); +inline size_t Response::get_header_value_count(const char *key) const { + auto r = headers.equal_range(key); + return std::distance(r.first, r.second); } -inline void Response::set_redirect(const char* url) -{ - set_header("Location", url); - status = 302; +inline void Response::set_header(const char *key, const char *val) { + headers.emplace(key, val); } -inline void Response::set_content(const char* s, size_t n, const char* content_type) -{ - body.assign(s, n); - set_header("Content-Type", content_type); +inline void Response::set_header(const char *key, const std::string &val) { + headers.emplace(key, val); } -inline void Response::set_content(const std::string& s, const char* content_type) -{ - body = s; - set_header("Content-Type", content_type); +inline void Response::set_redirect(const char *url) { + set_header("Location", url); + status = 302; +} + +inline void Response::set_content(const char *s, size_t n, + const char *content_type) { + body.assign(s, n); + set_header("Content-Type", content_type); +} + +inline void Response::set_content(const std::string &s, + const char *content_type) { + body = s; + set_header("Content-Type", content_type); +} + +inline void Response::set_content_provider( + size_t length, + std::function provider, + std::function resource_releaser) { + assert(length > 0); + content_length = length; + content_provider = [provider](size_t offset, size_t length, DataSink &sink) { + provider(offset, length, sink); + }; + content_provider_resource_releaser = resource_releaser; +} + +inline void Response::set_chunked_content_provider( + std::function provider, + std::function resource_releaser) { + content_length = 0; + content_provider = [provider](size_t offset, size_t, DataSink &sink) { + provider(offset, sink); + }; + content_provider_resource_releaser = resource_releaser; } // Rstream implementation -template -inline void Stream::write_format(const char* fmt, const Args& ...args) -{ - const auto bufsiz = 2048; - char buf[bufsiz]; +inline int Stream::write(const char *ptr) { return write(ptr, strlen(ptr)); } -#if defined(_MSC_VER) && _MSC_VER < 1900 - auto n = _snprintf_s(buf, bufsiz, bufsiz - 1, fmt, args...); -#else - auto n = snprintf(buf, bufsiz - 1, fmt, args...); -#endif - if (n > 0) { - if (n >= bufsiz - 1) { - std::vector glowable_buf(bufsiz); - - while (n >= static_cast(glowable_buf.size() - 1)) { - glowable_buf.resize(glowable_buf.size() * 2); -#if defined(_MSC_VER) && _MSC_VER < 1900 - n = _snprintf_s(&glowable_buf[0], glowable_buf.size(), glowable_buf.size() - 1, fmt, args...); -#else - n = snprintf(&glowable_buf[0], glowable_buf.size() - 1, fmt, args...); -#endif - } - write(&glowable_buf[0], n); - } else { - write(buf, n); - } - } +inline int Stream::write(const std::string &s) { + return write(s.data(), s.size()); } +template +inline int Stream::write_format(const char *fmt, const Args &... args) { + std::array buf; + +#if defined(_MSC_VER) && _MSC_VER < 1900 + auto n = _snprintf_s(buf, bufsiz, buf.size() - 1, fmt, args...); +#else + auto n = snprintf(buf.data(), buf.size() - 1, fmt, args...); +#endif + if (n <= 0) { return n; } + + if (n >= static_cast(buf.size()) - 1) { + std::vector glowable_buf(buf.size()); + + while (n >= static_cast(glowable_buf.size() - 1)) { + glowable_buf.resize(glowable_buf.size() * 2); +#if defined(_MSC_VER) && _MSC_VER < 1900 + n = _snprintf_s(&glowable_buf[0], glowable_buf.size(), + glowable_buf.size() - 1, fmt, args...); +#else + n = snprintf(&glowable_buf[0], glowable_buf.size() - 1, fmt, args...); +#endif + } + return write(&glowable_buf[0], n); + } else { + return write(buf.data(), n); + } +} + +namespace detail { + // Socket stream implementation -inline SocketStream::SocketStream(socket_t sock): sock_(sock) -{ +inline SocketStream::SocketStream(socket_t sock, time_t read_timeout_sec, + time_t read_timeout_usec) + : sock_(sock), read_timeout_sec_(read_timeout_sec), + read_timeout_usec_(read_timeout_usec) {} + +inline SocketStream::~SocketStream() {} + +inline bool SocketStream::is_readable() const { + return detail::select_read(sock_, read_timeout_sec_, read_timeout_usec_) > 0; } -inline SocketStream::~SocketStream() -{ +inline bool SocketStream::is_writable() const { + return detail::select_write(sock_, 0, 0) > 0; } -inline int SocketStream::read(char* ptr, size_t size) -{ - return recv(sock_, ptr, size, 0); +inline int SocketStream::read(char *ptr, size_t size) { + if (is_readable()) { return recv(sock_, ptr, static_cast(size), 0); } + return -1; } -inline int SocketStream::write(const char* ptr, size_t size) -{ - return send(sock_, ptr, size, 0); +inline int SocketStream::write(const char *ptr, size_t size) { + if (is_writable()) { return send(sock_, ptr, static_cast(size), 0); } + return -1; } -inline int SocketStream::write(const char* ptr) -{ - return write(ptr, strlen(ptr)); +inline std::string SocketStream::get_remote_addr() const { + return detail::get_remote_addr(sock_); } -inline std::string SocketStream::get_remote_addr() { - return detail::get_remote_addr(sock_); +// Buffer stream implementation +inline bool BufferStream::is_readable() const { return true; } + +inline bool BufferStream::is_writable() const { return true; } + +inline int BufferStream::read(char *ptr, size_t size) { +#if defined(_MSC_VER) && _MSC_VER < 1900 + int len_read = static_cast(buffer._Copy_s(ptr, size, size, position)); +#else + int len_read = static_cast(buffer.copy(ptr, size, position)); +#endif + position += len_read; + return len_read; } +inline int BufferStream::write(const char *ptr, size_t size) { + buffer.append(ptr, size); + return static_cast(size); +} + +inline std::string BufferStream::get_remote_addr() const { return ""; } + +inline const std::string &BufferStream::get_buffer() const { return buffer; } + +} // namespace detail + // HTTP server implementation inline Server::Server() - : keep_alive_max_count_(5) - , is_running_(false) - , svr_sock_(INVALID_SOCKET) - , running_threads_(0) -{ + : keep_alive_max_count_(CPPHTTPLIB_KEEPALIVE_MAX_COUNT), + read_timeout_sec_(CPPHTTPLIB_READ_TIMEOUT_SECOND), + read_timeout_usec_(CPPHTTPLIB_READ_TIMEOUT_USECOND), + payload_max_length_(CPPHTTPLIB_PAYLOAD_MAX_LENGTH), is_running_(false), + svr_sock_(INVALID_SOCKET) { #ifndef _WIN32 - signal(SIGPIPE, SIG_IGN); + signal(SIGPIPE, SIG_IGN); #endif + new_task_queue = [] { return new ThreadPool(CPPHTTPLIB_THREAD_POOL_COUNT); }; } -inline Server::~Server() -{ +inline Server::~Server() {} + +inline Server &Server::Get(const char *pattern, Handler handler) { + get_handlers_.push_back(std::make_pair(std::regex(pattern), handler)); + return *this; } -inline Server& Server::Get(const char* pattern, Handler handler) -{ - get_handlers_.push_back(std::make_pair(std::regex(pattern), handler)); - return *this; +inline Server &Server::Post(const char *pattern, Handler handler) { + post_handlers_.push_back(std::make_pair(std::regex(pattern), handler)); + return *this; } -inline Server& Server::Post(const char* pattern, Handler handler) -{ - post_handlers_.push_back(std::make_pair(std::regex(pattern), handler)); - return *this; +inline Server &Server::Post(const char *pattern, + HandlerWithContentReader handler) { + post_handlers_for_content_reader_.push_back( + std::make_pair(std::regex(pattern), handler)); + return *this; } -inline Server& Server::Put(const char* pattern, Handler handler) -{ - put_handlers_.push_back(std::make_pair(std::regex(pattern), handler)); - return *this; +inline Server &Server::Put(const char *pattern, Handler handler) { + put_handlers_.push_back(std::make_pair(std::regex(pattern), handler)); + return *this; } -inline Server& Server::Delete(const char* pattern, Handler handler) -{ - delete_handlers_.push_back(std::make_pair(std::regex(pattern), handler)); - return *this; +inline Server &Server::Put(const char *pattern, + HandlerWithContentReader handler) { + put_handlers_for_content_reader_.push_back( + std::make_pair(std::regex(pattern), handler)); + return *this; } -inline Server& Server::Options(const char* pattern, Handler handler) -{ - options_handlers_.push_back(std::make_pair(std::regex(pattern), handler)); - return *this; +inline Server &Server::Patch(const char *pattern, Handler handler) { + patch_handlers_.push_back(std::make_pair(std::regex(pattern), handler)); + return *this; } -inline bool Server::set_base_dir(const char* path) -{ - if (detail::is_dir(path)) { - base_dir_ = path; - return true; +inline Server &Server::Patch(const char *pattern, + HandlerWithContentReader handler) { + patch_handlers_for_content_reader_.push_back( + std::make_pair(std::regex(pattern), handler)); + return *this; +} + +inline Server &Server::Delete(const char *pattern, Handler handler) { + delete_handlers_.push_back(std::make_pair(std::regex(pattern), handler)); + return *this; +} + +inline Server &Server::Options(const char *pattern, Handler handler) { + options_handlers_.push_back(std::make_pair(std::regex(pattern), handler)); + return *this; +} + +inline bool Server::set_base_dir(const char *dir, const char *mount_point) { + return set_mount_point(mount_point, dir); +} + +inline bool Server::set_mount_point(const char *mount_point, const char *dir) { + if (detail::is_dir(dir)) { + std::string mnt = mount_point ? mount_point : "/"; + if (!mnt.empty() && mnt[0] == '/') { + base_dirs_.emplace_back(mnt, dir); + return true; } + } + return false; +} + +inline bool Server::remove_mount_point(const char *mount_point) { + for (auto it = base_dirs_.begin(); it != base_dirs_.end(); ++it) { + if (it->first == mount_point) { + base_dirs_.erase(it); + return true; + } + } + return false; +} + +inline void Server::set_file_extension_and_mimetype_mapping(const char *ext, + const char *mime) { + file_extension_and_mimetype_map_[ext] = mime; +} + +inline void Server::set_file_request_handler(Handler handler) { + file_request_handler_ = std::move(handler); +} + +inline void Server::set_error_handler(Handler handler) { + error_handler_ = std::move(handler); +} + +inline void Server::set_logger(Logger logger) { logger_ = std::move(logger); } + +inline void Server::set_keep_alive_max_count(size_t count) { + keep_alive_max_count_ = count; +} + +inline void Server::set_read_timeout(time_t sec, time_t usec) { + read_timeout_sec_ = sec; + read_timeout_usec_ = usec; +} + +inline void Server::set_payload_max_length(size_t length) { + payload_max_length_ = length; +} + +inline bool Server::bind_to_port(const char *host, int port, int socket_flags) { + if (bind_internal(host, port, socket_flags) < 0) return false; + return true; +} +inline int Server::bind_to_any_port(const char *host, int socket_flags) { + return bind_internal(host, 0, socket_flags); +} + +inline bool Server::listen_after_bind() { return listen_internal(); } + +inline bool Server::listen(const char *host, int port, int socket_flags) { + return bind_to_port(host, port, socket_flags) && listen_internal(); +} + +inline bool Server::is_running() const { return is_running_; } + +inline void Server::stop() { + if (is_running_) { + assert(svr_sock_ != INVALID_SOCKET); + std::atomic sock(svr_sock_.exchange(INVALID_SOCKET)); + detail::shutdown_socket(sock); + detail::close_socket(sock); + } +} + +inline bool Server::parse_request_line(const char *s, Request &req) { + const static std::regex re( + "(GET|HEAD|POST|PUT|DELETE|CONNECT|OPTIONS|TRACE|PATCH|PRI) " + "(([^?]+)(?:\\?(.*?))?) (HTTP/1\\.[01])\r\n"); + + std::cmatch m; + if (std::regex_match(s, m, re)) { + req.version = std::string(m[5]); + req.method = std::string(m[1]); + req.target = std::string(m[2]); + req.path = detail::decode_url(m[3]); + + // Parse query text + auto len = std::distance(m[4].first, m[4].second); + if (len > 0) { detail::parse_query_text(m[4], req.params); } + + return true; + } + + return false; +} + +inline bool Server::write_response(Stream &strm, bool last_connection, + const Request &req, Response &res) { + assert(res.status != -1); + + if (400 <= res.status && error_handler_) { error_handler_(req, res); } + + // Response line + if (!strm.write_format("HTTP/1.1 %d %s\r\n", res.status, + detail::status_message(res.status))) { return false; -} + } -inline void Server::set_error_handler(Handler handler) -{ - error_handler_ = handler; -} + // Headers + if (last_connection || req.get_header_value("Connection") == "close") { + res.set_header("Connection", "close"); + } -inline void Server::set_logger(Logger logger) -{ - logger_ = logger; -} + if (!last_connection && req.get_header_value("Connection") == "Keep-Alive") { + res.set_header("Connection", "Keep-Alive"); + } -inline void Server::set_keep_alive_max_count(size_t count) -{ - keep_alive_max_count_ = count; -} + if (!res.has_header("Content-Type")) { + res.set_header("Content-Type", "text/plain"); + } -inline int Server::bind_to_any_port(const char* host, int socket_flags) -{ - return bind_internal(host, 0, socket_flags); -} + if (!res.has_header("Accept-Ranges")) { + res.set_header("Accept-Ranges", "bytes"); + } -inline bool Server::listen_after_bind() { - return listen_internal(); -} + std::string content_type; + std::string boundary; -inline bool Server::listen(const char* host, int port, int socket_flags) -{ - if (bind_internal(host, port, socket_flags) < 0) - return false; - return listen_internal(); -} + if (req.ranges.size() > 1) { + boundary = detail::make_multipart_data_boundary(); -inline bool Server::is_running() const -{ - return is_running_; -} - -inline void Server::stop() -{ - if (is_running_) { - assert(svr_sock_ != INVALID_SOCKET); - detail::shutdown_socket(svr_sock_); - detail::close_socket(svr_sock_); - svr_sock_ = INVALID_SOCKET; - } -} - -inline bool Server::parse_request_line(const char* s, Request& req) -{ - static std::regex re("(GET|HEAD|POST|PUT|DELETE|OPTIONS) (([^?]+)(?:\\?(.+?))?) (HTTP/1\\.[01])\r\n"); - - std::cmatch m; - if (std::regex_match(s, m, re)) { - req.version = std::string(m[4]); - req.method = std::string(m[1]); - req.target = std::string(m[2]); - req.path = detail::decode_url(m[3]); - - // Parse query text - auto len = std::distance(m[4].first, m[4].second); - if (len > 0) { - detail::parse_query_text(m[4], req.params); - } - - return true; + auto it = res.headers.find("Content-Type"); + if (it != res.headers.end()) { + content_type = it->second; + res.headers.erase(it); } - return false; -} + res.headers.emplace("Content-Type", + "multipart/byteranges; boundary=" + boundary); + } -inline void Server::write_response(Stream& strm, bool last_connection, const Request& req, Response& res) -{ - assert(res.status != -1); - - if (400 <= res.status && error_handler_) { - error_handler_(req, res); + if (res.body.empty()) { + if (res.content_length > 0) { + size_t length = 0; + if (req.ranges.empty()) { + length = res.content_length; + } else if (req.ranges.size() == 1) { + auto offsets = + detail::get_range_offset_and_length(req, res.content_length, 0); + auto offset = offsets.first; + length = offsets.second; + auto content_range = detail::make_content_range_header_field( + offset, length, res.content_length); + res.set_header("Content-Range", content_range); + } else { + length = detail::get_multipart_ranges_data_length(req, res, boundary, + content_type); + } + res.set_header("Content-Length", std::to_string(length)); + } else { + if (res.content_provider) { + res.set_header("Transfer-Encoding", "chunked"); + } else { + res.set_header("Content-Length", "0"); + } + } + } else { + if (req.ranges.empty()) { + ; + } else if (req.ranges.size() == 1) { + auto offsets = + detail::get_range_offset_and_length(req, res.body.size(), 0); + auto offset = offsets.first; + auto length = offsets.second; + auto content_range = detail::make_content_range_header_field( + offset, length, res.body.size()); + res.set_header("Content-Range", content_range); + res.body = res.body.substr(offset, length); + } else { + res.body = + detail::make_multipart_ranges_data(req, res, boundary, content_type); } - // Response line - strm.write_format("HTTP/1.1 %d %s\r\n", - res.status, - detail::status_message(res.status)); - - // Headers - if (last_connection || - req.version == "HTTP/1.0" || - req.get_header_value("Connection") == "close") { - res.set_header("Connection", "close"); - } - - if (!res.body.empty()) { #ifdef CPPHTTPLIB_ZLIB_SUPPORT - // TODO: 'Accpet-Encoding' has gzip, not gzip;q=0 - const auto& encodings = req.get_header_value("Accept-Encoding"); - if (encodings.find("gzip") != std::string::npos && - detail::can_compress(res.get_header_value("Content-Type"))) { - detail::compress(res.body); - res.set_header("Content-Encoding", "gzip"); - } + // TODO: 'Accept-Encoding' has gzip, not gzip;q=0 + const auto &encodings = req.get_header_value("Accept-Encoding"); + if (encodings.find("gzip") != std::string::npos && + detail::can_compress(res.get_header_value("Content-Type"))) { + if (detail::compress(res.body)) { + res.set_header("Content-Encoding", "gzip"); + } + } #endif - if (!res.has_header("Content-Type")) { - res.set_header("Content-Type", "text/plain"); - } + auto length = std::to_string(res.body.size()); + res.set_header("Content-Length", length); + } - auto length = std::to_string(res.body.size()); - res.set_header("Content-Length", length.c_str()); + if (!detail::write_headers(strm, res, Headers())) { return false; } + + // Body + if (req.method != "HEAD") { + if (!res.body.empty()) { + if (!strm.write(res.body)) { return false; } + } else if (res.content_provider) { + if (!write_content_with_provider(strm, req, res, boundary, + content_type)) { + return false; + } } + } - detail::write_headers(strm, res); + // Log + if (logger_) { logger_(req, res); } - // Body - if (!res.body.empty() && req.method != "HEAD") { - strm.write(res.body.c_str(), res.body.size()); - } - - // Log - if (logger_) { - logger_(req, res); - } + return true; } -inline bool Server::handle_file_request(Request& req, Response& res) -{ - if (!base_dir_.empty() && detail::is_valid_path(req.path)) { - std::string path = base_dir_ + req.path; +inline bool +Server::write_content_with_provider(Stream &strm, const Request &req, + Response &res, const std::string &boundary, + const std::string &content_type) { + if (res.content_length) { + if (req.ranges.empty()) { + if (detail::write_content(strm, res.content_provider, 0, + res.content_length) < 0) { + return false; + } + } else if (req.ranges.size() == 1) { + auto offsets = + detail::get_range_offset_and_length(req, res.content_length, 0); + auto offset = offsets.first; + auto length = offsets.second; + if (detail::write_content(strm, res.content_provider, offset, length) < + 0) { + return false; + } + } else { + if (!detail::write_multipart_ranges_data(strm, req, res, boundary, + content_type)) { + return false; + } + } + } else { + auto is_shutting_down = [this]() { + return this->svr_sock_ == INVALID_SOCKET; + }; + if (detail::write_content_chunked(strm, res.content_provider, + is_shutting_down) < 0) { + return false; + } + } + return true; +} - if (!path.empty() && path.back() == '/') { - path += "index.html"; - } +inline bool Server::read_content(Stream &strm, bool last_connection, + Request &req, Response &res) { + MultipartFormDataMap::iterator cur; + auto ret = read_content_core( + strm, last_connection, req, res, + // Regular + [&](const char *buf, size_t n) { + if (req.body.size() + n > req.body.max_size()) { return false; } + req.body.append(buf, n); + return true; + }, + // Multipart + [&](const MultipartFormData &file) { + cur = req.files.emplace(file.name, file); + return true; + }, + [&](const char *buf, size_t n) { + auto &content = cur->second.content; + if (content.size() + n > content.max_size()) { return false; } + content.append(buf, n); + return true; + }); + + const auto &content_type = req.get_header_value("Content-Type"); + if (!content_type.find("application/x-www-form-urlencoded")) { + detail::parse_query_text(req.body, req.params); + } + + return ret; +} + +inline bool Server::read_content_with_content_receiver( + Stream &strm, bool last_connection, Request &req, Response &res, + ContentReceiver receiver, MultipartContentHeader multipart_header, + ContentReceiver multipart_receiver) { + return read_content_core(strm, last_connection, req, res, receiver, + multipart_header, multipart_receiver); +} + +inline bool Server::read_content_core(Stream &strm, bool last_connection, + Request &req, Response &res, + ContentReceiver receiver, + MultipartContentHeader mulitpart_header, + ContentReceiver multipart_receiver) { + detail::MultipartFormDataParser multipart_form_data_parser; + ContentReceiver out; + + if (req.is_multipart_form_data()) { + const auto &content_type = req.get_header_value("Content-Type"); + std::string boundary; + if (!detail::parse_multipart_boundary(content_type, boundary)) { + res.status = 400; + return write_response(strm, last_connection, req, res); + } + + multipart_form_data_parser.set_boundary(boundary); + out = [&](const char *buf, size_t n) { + return multipart_form_data_parser.parse(buf, n, multipart_receiver, + mulitpart_header); + }; + } else { + out = receiver; + } + + if (!detail::read_content(strm, req, payload_max_length_, res.status, + Progress(), out)) { + return write_response(strm, last_connection, req, res); + } + + if (req.is_multipart_form_data()) { + if (!multipart_form_data_parser.is_valid()) { + res.status = 400; + return write_response(strm, last_connection, req, res); + } + } + + return true; +} + +inline bool Server::handle_file_request(Request &req, Response &res, + bool head) { + for (const auto &kv : base_dirs_) { + const auto &mount_point = kv.first; + const auto &base_dir = kv.second; + + // Prefix match + if (!req.path.find(mount_point)) { + std::string sub_path = "/" + req.path.substr(mount_point.size()); + if (detail::is_valid_path(sub_path)) { + auto path = base_dir + sub_path; + if (path.back() == '/') { path += "index.html"; } if (detail::is_file(path)) { - detail::read_file(path, res.body); - auto type = detail::find_content_type(path); - if (type) { - res.set_header("Content-Type", type); - } - res.status = 200; - return true; + detail::read_file(path, res.body); + auto type = + detail::find_content_type(path, file_extension_and_mimetype_map_); + if (type) { res.set_header("Content-Type", type); } + res.status = 200; + if (!head && file_request_handler_) { + file_request_handler_(req, res); + } + return true; } + } } - - return false; + } + return false; } -inline socket_t Server::create_server_socket(const char* host, int port, int socket_flags) const -{ - return detail::create_socket(host, port, - [](socket_t sock, struct addrinfo& ai) -> bool { - if (::bind(sock, ai.ai_addr, ai.ai_addrlen)) { - return false; - } - if (::listen(sock, 5)) { // Listen through 5 channels - return false; - } - return true; - }, socket_flags); +inline socket_t Server::create_server_socket(const char *host, int port, + int socket_flags) const { + return detail::create_socket( + host, port, + [](socket_t sock, struct addrinfo &ai) -> bool { + if (::bind(sock, ai.ai_addr, static_cast(ai.ai_addrlen))) { + return false; + } + if (::listen(sock, 5)) { // Listen through 5 channels + return false; + } + return true; + }, + socket_flags); } -inline int Server::bind_internal(const char* host, int port, int socket_flags) -{ - if (!is_valid()) { - return -1; - } +inline int Server::bind_internal(const char *host, int port, int socket_flags) { + if (!is_valid()) { return -1; } - svr_sock_ = create_server_socket(host, port, socket_flags); - if (svr_sock_ == INVALID_SOCKET) { - return -1; - } + svr_sock_ = create_server_socket(host, port, socket_flags); + if (svr_sock_ == INVALID_SOCKET) { return -1; } - if (port == 0) { - struct sockaddr_storage address; - socklen_t len = sizeof(address); - if (getsockname(svr_sock_, reinterpret_cast(&address), &len) == -1) { - return -1; + if (port == 0) { + struct sockaddr_storage address; + socklen_t len = sizeof(address); + if (getsockname(svr_sock_, reinterpret_cast(&address), + &len) == -1) { + return -1; + } + if (address.ss_family == AF_INET) { + return ntohs(reinterpret_cast(&address)->sin_port); + } else if (address.ss_family == AF_INET6) { + return ntohs( + reinterpret_cast(&address)->sin6_port); + } else { + return -1; + } + } else { + return port; + } +} + +inline bool Server::listen_internal() { + auto ret = true; + is_running_ = true; + + { + std::unique_ptr task_queue(new_task_queue()); + + for (;;) { + if (svr_sock_ == INVALID_SOCKET) { + // The server socket was closed by 'stop' method. + break; + } + + auto val = detail::select_read(svr_sock_, 0, 100000); + + if (val == 0) { // Timeout + continue; + } + + socket_t sock = accept(svr_sock_, nullptr, nullptr); + + if (sock == INVALID_SOCKET) { + if (errno == EMFILE) { + // The per-process limit of open file descriptors has been reached. + // Try to accept new connections after a short sleep. + std::this_thread::sleep_for(std::chrono::milliseconds(1)); + continue; } - if (address.ss_family == AF_INET) { - return ntohs(reinterpret_cast(&address)->sin_port); - } else if (address.ss_family == AF_INET6) { - return ntohs(reinterpret_cast(&address)->sin6_port); + if (svr_sock_ != INVALID_SOCKET) { + detail::close_socket(svr_sock_); + ret = false; } else { - return -1; + ; // The server socket was closed by user. } - } else { - return port; + break; + } + + task_queue->enqueue([=]() { process_and_close_socket(sock); }); } + + task_queue->shutdown(); + } + + is_running_ = false; + return ret; } -inline bool Server::listen_internal() -{ - auto ret = true; - - is_running_ = true; - - for (;;) { - auto val = detail::select_read(svr_sock_, 0, 100000); - - if (val == 0) { // Timeout - if (svr_sock_ == INVALID_SOCKET) { - // The server socket was closed by 'stop' method. - break; - } - continue; - } - - socket_t sock = accept(svr_sock_, NULL, NULL); - - if (sock == INVALID_SOCKET) { - if (svr_sock_ != INVALID_SOCKET) { - detail::close_socket(svr_sock_); - ret = false; - } else { - ; // The server socket was closed by user. - } - break; - } - - // TODO: Use thread pool... - std::thread([=]() { - { - std::lock_guard guard(running_threads_mutex_); - running_threads_++; - } - - read_and_close_socket(sock); - - { - std::lock_guard guard(running_threads_mutex_); - running_threads_--; - } - }).detach(); - } - - // TODO: Use thread pool... - for (;;) { - std::this_thread::sleep_for(std::chrono::milliseconds(10)); - std::lock_guard guard(running_threads_mutex_); - if (!running_threads_) { - break; - } - } - - is_running_ = false; - - return ret; -} - -inline bool Server::routing(Request& req, Response& res) -{ - if (req.method == "GET" && handle_file_request(req, res)) { - return true; - } - - if (req.method == "GET" || req.method == "HEAD") { - return dispatch_request(req, res, get_handlers_); - } else if (req.method == "POST") { - return dispatch_request(req, res, post_handlers_); - } else if (req.method == "PUT") { - return dispatch_request(req, res, put_handlers_); - } else if (req.method == "DELETE") { - return dispatch_request(req, res, delete_handlers_); - } else if (req.method == "OPTIONS") { - return dispatch_request(req, res, options_handlers_); - } - return false; -} - -inline bool Server::dispatch_request(Request& req, Response& res, Handlers& handlers) -{ - for (const auto& x: handlers) { - const auto& pattern = x.first; - const auto& handler = x.second; - - if (std::regex_match(req.path, req.matches, pattern)) { - handler(req, res); - return true; - } - } - return false; -} - -inline bool Server::process_request(Stream& strm, bool last_connection, bool& connection_close) -{ - const auto bufsiz = 2048; - char buf[bufsiz]; - - detail::stream_line_reader reader(strm, buf, bufsiz); - - // Connection has been closed on client - if (!reader.getline()) { - return false; - } - - Request req; - Response res; - - res.version = "HTTP/1.1"; - - // Request line and headers - if (!parse_request_line(reader.ptr(), req) || !detail::read_headers(strm, req.headers)) { - res.status = 400; - write_response(strm, last_connection, req, res); - return true; - } - - auto ret = true; - if (req.get_header_value("Connection") == "close") { - // ret = false; - connection_close = true; - } - - req.set_header("REMOTE_ADDR", strm.get_remote_addr().c_str()); - - // Body - if (req.method == "POST" || req.method == "PUT") { - if (!detail::read_content(strm, req)) { - res.status = 400; - write_response(strm, last_connection, req, res); - return ret; - } - - const auto& content_type = req.get_header_value("Content-Type"); - - if (req.get_header_value("Content-Encoding") == "gzip") { -#ifdef CPPHTTPLIB_ZLIB_SUPPORT - detail::decompress(req.body); -#else - res.status = 415; - write_response(strm, last_connection, req, res); - return ret; -#endif - } - - if (!content_type.find("application/x-www-form-urlencoded")) { - detail::parse_query_text(req.body, req.params); - } else if(!content_type.find("multipart/form-data")) { - std::string boundary; - if (!detail::parse_multipart_boundary(content_type, boundary) || - !detail::parse_multipart_formdata(boundary, req.body, req.files)) { - res.status = 400; - write_response(strm, last_connection, req, res); - return ret; - } - } - } - - if (routing(req, res)) { - if (res.status == -1) { - res.status = 200; - } - } else { - res.status = 404; - } - - write_response(strm, last_connection, req, res); - return ret; -} - -inline bool Server::is_valid() const -{ +inline bool Server::routing(Request &req, Response &res, Stream &strm, + bool last_connection) { + // File handler + bool is_head_request = req.method == "HEAD"; + if ((req.method == "GET" || is_head_request) && + handle_file_request(req, res, is_head_request)) { return true; + } + + if (detail::expect_content(req)) { + // Content reader handler + { + ContentReader reader( + [&](ContentReceiver receiver) { + return read_content_with_content_receiver( + strm, last_connection, req, res, receiver, nullptr, nullptr); + }, + [&](MultipartContentHeader header, ContentReceiver receiver) { + return read_content_with_content_receiver( + strm, last_connection, req, res, nullptr, header, receiver); + }); + + if (req.method == "POST") { + if (dispatch_request_for_content_reader( + req, res, reader, post_handlers_for_content_reader_)) { + return true; + } + } else if (req.method == "PUT") { + if (dispatch_request_for_content_reader( + req, res, reader, put_handlers_for_content_reader_)) { + return true; + } + } else if (req.method == "PATCH") { + if (dispatch_request_for_content_reader( + req, res, reader, patch_handlers_for_content_reader_)) { + return true; + } + } + } + + // Read content into `req.body` + if (!read_content(strm, last_connection, req, res)) { return false; } + } + + // Regular handler + if (req.method == "GET" || req.method == "HEAD") { + return dispatch_request(req, res, get_handlers_); + } else if (req.method == "POST") { + return dispatch_request(req, res, post_handlers_); + } else if (req.method == "PUT") { + return dispatch_request(req, res, put_handlers_); + } else if (req.method == "DELETE") { + return dispatch_request(req, res, delete_handlers_); + } else if (req.method == "OPTIONS") { + return dispatch_request(req, res, options_handlers_); + } else if (req.method == "PATCH") { + return dispatch_request(req, res, patch_handlers_); + } + + res.status = 400; + return false; } -inline bool Server::read_and_close_socket(socket_t sock) -{ - return detail::read_and_close_socket( - sock, - keep_alive_max_count_, - [this](Stream& strm, bool last_connection, bool& connection_close) { - return process_request(strm, last_connection, connection_close); - }); +inline bool Server::dispatch_request(Request &req, Response &res, + Handlers &handlers) { + for (const auto &x : handlers) { + const auto &pattern = x.first; + const auto &handler = x.second; + + if (std::regex_match(req.path, req.matches, pattern)) { + handler(req, res); + return true; + } + } + return false; +} + +inline bool Server::dispatch_request_for_content_reader( + Request &req, Response &res, ContentReader content_reader, + HandlersForContentReader &handlers) { + for (const auto &x : handlers) { + const auto &pattern = x.first; + const auto &handler = x.second; + + if (std::regex_match(req.path, req.matches, pattern)) { + handler(req, res, content_reader); + return true; + } + } + return false; +} + +inline bool +Server::process_request(Stream &strm, bool last_connection, + bool &connection_close, + const std::function &setup_request) { + std::array buf{}; + + detail::stream_line_reader line_reader(strm, buf.data(), buf.size()); + + // Connection has been closed on client + if (!line_reader.getline()) { return false; } + + Request req; + Response res; + + res.version = "HTTP/1.1"; + + // Check if the request URI doesn't exceed the limit + if (line_reader.size() > CPPHTTPLIB_REQUEST_URI_MAX_LENGTH) { + Headers dummy; + detail::read_headers(strm, dummy); + res.status = 414; + return write_response(strm, last_connection, req, res); + } + + // Request line and headers + if (!parse_request_line(line_reader.ptr(), req) || + !detail::read_headers(strm, req.headers)) { + res.status = 400; + return write_response(strm, last_connection, req, res); + } + + if (req.get_header_value("Connection") == "close") { + connection_close = true; + } + + if (req.version == "HTTP/1.0" && + req.get_header_value("Connection") != "Keep-Alive") { + connection_close = true; + } + + req.set_header("REMOTE_ADDR", strm.get_remote_addr()); + + if (req.has_header("Range")) { + const auto &range_header_value = req.get_header_value("Range"); + if (!detail::parse_range_header(range_header_value, req.ranges)) { + // TODO: error + } + } + + if (setup_request) { setup_request(req); } + + // Rounting + if (routing(req, res, strm, last_connection)) { + if (res.status == -1) { res.status = req.ranges.empty() ? 200 : 206; } + } else { + if (res.status == -1) { res.status = 404; } + } + + return write_response(strm, last_connection, req, res); +} + +inline bool Server::is_valid() const { return true; } + +inline bool Server::process_and_close_socket(socket_t sock) { + return detail::process_and_close_socket( + false, sock, keep_alive_max_count_, read_timeout_sec_, read_timeout_usec_, + [this](Stream &strm, bool last_connection, bool &connection_close) { + return process_request(strm, last_connection, connection_close, + nullptr); + }); } // HTTP client implementation -inline Client::Client( - const char* host, int port, size_t timeout_sec) - : host_(host) - , port_(port) - , timeout_sec_(timeout_sec) - , host_and_port_(host_ + ":" + std::to_string(port_)) -{ +inline Client::Client(const std::string &host, int port, + const std::string &client_cert_path, + const std::string &client_key_path) + : host_(host), port_(port), + host_and_port_(host_ + ":" + std::to_string(port_)), + client_cert_path_(client_cert_path), client_key_path_(client_key_path) {} + +inline Client::~Client() {} + +inline bool Client::is_valid() const { return true; } + +inline socket_t Client::create_client_socket() const { + if (!proxy_host_.empty()) { + return detail::create_client_socket(proxy_host_.c_str(), proxy_port_, + timeout_sec_, interface_); + } + return detail::create_client_socket(host_.c_str(), port_, timeout_sec_, + interface_); } -inline Client::~Client() -{ +inline bool Client::read_response_line(Stream &strm, Response &res) { + std::array buf; + + detail::stream_line_reader line_reader(strm, buf.data(), buf.size()); + + if (!line_reader.getline()) { return false; } + + const static std::regex re("(HTTP/1\\.[01]) (\\d+?) .*\r\n"); + + std::cmatch m; + if (std::regex_match(line_reader.ptr(), m, re)) { + res.version = std::string(m[1]); + res.status = std::stoi(std::string(m[2])); + } + + return true; } -inline bool Client::is_valid() const -{ - return true; -} +inline bool Client::send(const Request &req, Response &res) { + auto sock = create_client_socket(); + if (sock == INVALID_SOCKET) { return false; } -inline socket_t Client::create_client_socket() const -{ - return detail::create_socket(host_.c_str(), port_, - [=](socket_t sock, struct addrinfo& ai) -> bool { - detail::set_nonblocking(sock, true); - - auto ret = connect(sock, ai.ai_addr, ai.ai_addrlen); - if (ret < 0) { - if (detail::is_connection_error() || - !detail::wait_until_socket_is_ready(sock, timeout_sec_, 0)) { - detail::close_socket(sock); - return false; - } - } - - detail::set_nonblocking(sock, false); - return true; - }); -} - -inline bool Client::read_response_line(Stream& strm, Response& res) -{ - const auto bufsiz = 2048; - char buf[bufsiz]; - - detail::stream_line_reader reader(strm, buf, bufsiz); - - if (!reader.getline()) { - return false; - } - - const static std::regex re("(HTTP/1\\.[01]) (\\d+?) .+\r\n"); - - std::cmatch m; - if (std::regex_match(reader.ptr(), m, re)) { - res.version = std::string(m[1]); - res.status = std::stoi(std::string(m[2])); - } - - return true; -} - -inline bool Client::send(Request& req, Response& res) -{ - if (req.path.empty()) { - return false; - } - - auto sock = create_client_socket(); - if (sock == INVALID_SOCKET) { - return false; - } - - return read_and_close_socket(sock, req, res); -} - -inline void Client::write_request(Stream& strm, Request& req) -{ - auto path = detail::encode_url(req.path); - - // Request line - strm.write_format("%s %s HTTP/1.1\r\n", - req.method.c_str(), - path.c_str()); - - // Headers - req.set_header("Host", host_and_port_.c_str()); - - if (!req.has_header("Accept")) { - req.set_header("Accept", "*/*"); - } - - if (!req.has_header("User-Agent")) { - req.set_header("User-Agent", "cpp-httplib/0.2"); - } - - // TODO: Support KeepAlive connection - // if (!req.has_header("Connection")) { - req.set_header("Connection", "close"); - // } - - if (!req.body.empty()) { - if (!req.has_header("Content-Type")) { - req.set_header("Content-Type", "text/plain"); - } - - auto length = std::to_string(req.body.size()); - req.set_header("Content-Length", length.c_str()); - } - - detail::write_headers(strm, req); - - // Body - if (!req.body.empty()) { - if (req.get_header_value("Content-Type") == "application/x-www-form-urlencoded") { - auto str = detail::encode_url(req.body); - strm.write(str.c_str(), str.size()); - } else { - strm.write(req.body.c_str(), req.body.size()); - } - } -} - -inline bool Client::process_request(Stream& strm, Request& req, Response& res, bool& connection_close) -{ - // Send request - write_request(strm, req); - - // Receive response and headers - if (!read_response_line(strm, res) || !detail::read_headers(strm, res.headers)) { - return false; - } - - if (res.get_header_value("Connection") == "close" || res.version == "HTTP/1.0") { - connection_close = true; - } - - // Body - if (req.method != "HEAD") { - if (!detail::read_content(strm, res, req.progress)) { - return false; - } - - if (res.get_header_value("Content-Encoding") == "gzip") { -#ifdef CPPHTTPLIB_ZLIB_SUPPORT - detail::decompress(res.body); -#else - return false; +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT + if (is_ssl() && !proxy_host_.empty()) { + bool error; + if (!connect(sock, res, error)) { return error; } + } #endif + + return process_and_close_socket( + sock, 1, [&](Stream &strm, bool last_connection, bool &connection_close) { + return handle_request(strm, req, res, last_connection, + connection_close); + }); +} + +inline bool Client::send(const std::vector &requests, + std::vector &responses) { + size_t i = 0; + while (i < requests.size()) { + auto sock = create_client_socket(); + if (sock == INVALID_SOCKET) { return false; } + +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT + if (is_ssl() && !proxy_host_.empty()) { + Response res; + bool error; + if (!connect(sock, res, error)) { return false; } + } +#endif + + if (!process_and_close_socket(sock, requests.size() - i, + [&](Stream &strm, bool last_connection, + bool &connection_close) -> bool { + auto &req = requests[i++]; + auto res = Response(); + auto ret = handle_request(strm, req, res, + last_connection, + connection_close); + if (ret) { + responses.emplace_back(std::move(res)); + } + return ret; + })) { + return false; + } + } + + return true; +} + +inline bool Client::handle_request(Stream &strm, const Request &req, + Response &res, bool last_connection, + bool &connection_close) { + if (req.path.empty()) { return false; } + + bool ret; + + if (!is_ssl() && !proxy_host_.empty()) { + auto req2 = req; + req2.path = "http://" + host_and_port_ + req.path; + ret = process_request(strm, req2, res, last_connection, connection_close); + } else { + ret = process_request(strm, req, res, last_connection, connection_close); + } + + if (!ret) { return false; } + + if (300 < res.status && res.status < 400 && follow_location_) { + ret = redirect(req, res); + } + +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT + if (res.status == 401 || res.status == 407) { + auto is_proxy = res.status == 407; + const auto &username = + is_proxy ? proxy_digest_auth_username_ : digest_auth_username_; + const auto &password = + is_proxy ? proxy_digest_auth_password_ : digest_auth_password_; + + if (!username.empty() && !password.empty()) { + std::map auth; + if (parse_www_authenticate(res, auth, is_proxy)) { + Request new_req = req; + auto key = is_proxy ? "Proxy-Authorization" : "WWW-Authorization"; + new_req.headers.erase(key); + new_req.headers.insert(make_digest_authentication_header( + req, auth, 1, random_string(10), username, password, is_proxy)); + + Response new_res; + + ret = send(new_req, new_res); + if (ret) { res = new_res; } + } + } + } +#endif + + return ret; +} + +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT +inline bool Client::connect(socket_t sock, Response &res, bool &error) { + error = true; + Response res2; + + if (!detail::process_socket( + true, sock, 1, read_timeout_sec_, read_timeout_usec_, + [&](Stream &strm, bool /*last_connection*/, bool &connection_close) { + Request req2; + req2.method = "CONNECT"; + req2.path = host_and_port_; + return process_request(strm, req2, res2, false, connection_close); + })) { + detail::close_socket(sock); + error = false; + return false; + } + + if (res2.status == 407) { + if (!proxy_digest_auth_username_.empty() && + !proxy_digest_auth_password_.empty()) { + std::map auth; + if (parse_www_authenticate(res2, auth, true)) { + Response res3; + if (!detail::process_socket( + true, sock, 1, read_timeout_sec_, read_timeout_usec_, + [&](Stream &strm, bool /*last_connection*/, + bool &connection_close) { + Request req3; + req3.method = "CONNECT"; + req3.path = host_and_port_; + req3.headers.insert(make_digest_authentication_header( + req3, auth, 1, random_string(10), + proxy_digest_auth_username_, proxy_digest_auth_password_, + true)); + return process_request(strm, req3, res3, false, + connection_close); + })) { + detail::close_socket(sock); + error = false; + return false; } + } + } else { + res = res2; + return false; + } + } + + return true; +} +#endif + +inline bool Client::redirect(const Request &req, Response &res) { + if (req.redirect_count == 0) { return false; } + + auto location = res.get_header_value("location"); + if (location.empty()) { return false; } + + const static std::regex re( + R"(^(?:([^:/?#]+):)?(?://([^/?#]*))?([^?#]*(?:\?[^#]*)?)(?:#.*)?)"); + + std::smatch m; + if (!regex_match(location, m, re)) { return false; } + + auto scheme = is_ssl() ? "https" : "http"; + + auto next_scheme = m[1].str(); + auto next_host = m[2].str(); + auto next_path = m[3].str(); + if (next_scheme.empty()) { next_scheme = scheme; } + if (next_scheme.empty()) { next_scheme = scheme; } + if (next_host.empty()) { next_host = host_; } + if (next_path.empty()) { next_path = "/"; } + + if (next_scheme == scheme && next_host == host_) { + return detail::redirect(*this, req, res, next_path); + } else { + if (next_scheme == "https") { +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT + SSLClient cli(next_host.c_str()); + cli.copy_settings(*this); + return detail::redirect(cli, req, res, next_path); +#else + return false; +#endif + } else { + Client cli(next_host.c_str()); + cli.copy_settings(*this); + return detail::redirect(cli, req, res, next_path); + } + } +} + +inline bool Client::write_request(Stream &strm, const Request &req, + bool last_connection) { + detail::BufferStream bstrm; + + // Request line + const auto &path = detail::encode_url(req.path); + + bstrm.write_format("%s %s HTTP/1.1\r\n", req.method.c_str(), path.c_str()); + + // Additonal headers + Headers headers; + if (last_connection) { headers.emplace("Connection", "close"); } + + if (!req.has_header("Host")) { + if (is_ssl()) { + if (port_ == 443) { + headers.emplace("Host", host_); + } else { + headers.emplace("Host", host_and_port_); + } + } else { + if (port_ == 80) { + headers.emplace("Host", host_); + } else { + headers.emplace("Host", host_and_port_); + } + } + } + + if (!req.has_header("Accept")) { headers.emplace("Accept", "*/*"); } + + if (!req.has_header("User-Agent")) { + headers.emplace("User-Agent", "cpp-httplib/0.5"); + } + + if (req.body.empty()) { + if (req.content_provider) { + auto length = std::to_string(req.content_length); + headers.emplace("Content-Length", length); + } else { + headers.emplace("Content-Length", "0"); + } + } else { + if (!req.has_header("Content-Type")) { + headers.emplace("Content-Type", "text/plain"); } - return true; + if (!req.has_header("Content-Length")) { + auto length = std::to_string(req.body.size()); + headers.emplace("Content-Length", length); + } + } + + if (!basic_auth_username_.empty() && !basic_auth_password_.empty()) { + headers.insert(make_basic_authentication_header( + basic_auth_username_, basic_auth_password_, false)); + } + + if (!proxy_basic_auth_username_.empty() && + !proxy_basic_auth_password_.empty()) { + headers.insert(make_basic_authentication_header( + proxy_basic_auth_username_, proxy_basic_auth_password_, true)); + } + + detail::write_headers(bstrm, req, headers); + + // Flush buffer + auto &data = bstrm.get_buffer(); + strm.write(data.data(), data.size()); + + // Body + if (req.body.empty()) { + if (req.content_provider) { + size_t offset = 0; + size_t end_offset = req.content_length; + + DataSink data_sink; + data_sink.write = [&](const char *d, size_t l) { + auto written_length = strm.write(d, l); + offset += written_length; + }; + data_sink.is_writable = [&](void) { return strm.is_writable(); }; + + while (offset < end_offset) { + req.content_provider(offset, end_offset - offset, data_sink); + } + } + } else { + strm.write(req.body); + } + + return true; } -inline bool Client::read_and_close_socket(socket_t sock, Request& req, Response& res) -{ - return detail::read_and_close_socket( - sock, - 0, - [&](Stream& strm, bool /*last_connection*/, bool& connection_close) { - return process_request(strm, req, res, connection_close); - }); -} +inline std::shared_ptr Client::send_with_content_provider( + const char *method, const char *path, const Headers &headers, + const std::string &body, size_t content_length, + ContentProvider content_provider, const char *content_type) { + Request req; + req.method = method; + req.headers = headers; + req.path = path; -inline std::shared_ptr Client::Get(const char* path, Progress progress) -{ - return Get(path, Headers(), progress); -} + req.headers.emplace("Content-Type", content_type); -inline std::shared_ptr Client::Get(const char* path, const Headers& headers, Progress progress) -{ - Request req; - req.method = "GET"; - req.path = path; - req.headers = headers; - req.progress = progress; +#ifdef CPPHTTPLIB_ZLIB_SUPPORT + if (compress_) { + if (content_provider) { + size_t offset = 0; - auto res = std::make_shared(); + DataSink data_sink; + data_sink.write = [&](const char *data, size_t data_len) { + req.body.append(data, data_len); + offset += data_len; + }; + data_sink.is_writable = [&](void) { return true; }; - return send(req, *res) ? res : nullptr; -} - -inline std::shared_ptr Client::Head(const char* path) -{ - return Head(path, Headers()); -} - -inline std::shared_ptr Client::Head(const char* path, const Headers& headers) -{ - Request req; - req.method = "HEAD"; - req.headers = headers; - req.path = path; - - auto res = std::make_shared(); - - return send(req, *res) ? res : nullptr; -} - -inline std::shared_ptr Client::Post( - const char* path, const std::string& body, const char* content_type) -{ - return Post(path, Headers(), body, content_type); -} - -inline std::shared_ptr Client::Post( - const char* path, const Headers& headers, const std::string& body, const char* content_type) -{ - Request req; - req.method = "POST"; - req.headers = headers; - req.path = path; - - req.headers.emplace("Content-Type", content_type); - req.body = body; - - auto res = std::make_shared(); - - return send(req, *res) ? res : nullptr; -} - -inline std::shared_ptr Client::Post(const char* path, const Params& params) -{ - return Post(path, Headers(), params); -} - -inline std::shared_ptr Client::Post(const char* path, const Headers& headers, const Params& params) -{ - std::string query; - for (auto it = params.begin(); it != params.end(); ++it) { - if (it != params.begin()) { - query += "&"; - } - query += it->first; - query += "="; - query += it->second; + while (offset < content_length) { + content_provider(offset, content_length - offset, data_sink); + } + } else { + req.body = body; } - return Post(path, headers, query, "application/x-www-form-urlencoded"); + if (!detail::compress(req.body)) { return nullptr; } + req.headers.emplace("Content-Encoding", "gzip"); + } else +#endif + { + if (content_provider) { + req.content_length = content_length; + req.content_provider = content_provider; + } else { + req.body = body; + } + } + + auto res = std::make_shared(); + + return send(req, *res) ? res : nullptr; } -inline std::shared_ptr Client::Put( - const char* path, const std::string& body, const char* content_type) -{ - return Put(path, Headers(), body, content_type); +inline bool Client::process_request(Stream &strm, const Request &req, + Response &res, bool last_connection, + bool &connection_close) { + // Send request + if (!write_request(strm, req, last_connection)) { return false; } + + // Receive response and headers + if (!read_response_line(strm, res) || + !detail::read_headers(strm, res.headers)) { + return false; + } + + if (res.get_header_value("Connection") == "close" || + res.version == "HTTP/1.0") { + connection_close = true; + } + + if (req.response_handler) { + if (!req.response_handler(res)) { return false; } + } + + // Body + if (req.method != "HEAD" && req.method != "CONNECT") { + ContentReceiver out = [&](const char *buf, size_t n) { + if (res.body.size() + n > res.body.max_size()) { return false; } + res.body.append(buf, n); + return true; + }; + + if (req.content_receiver) { + out = [&](const char *buf, size_t n) { + return req.content_receiver(buf, n); + }; + } + + int dummy_status; + if (!detail::read_content(strm, res, std::numeric_limits::max(), + dummy_status, req.progress, out)) { + return false; + } + } + + // Log + if (logger_) { logger_(req, res); } + + return true; } -inline std::shared_ptr Client::Put( - const char* path, const Headers& headers, const std::string& body, const char* content_type) -{ - Request req; - req.method = "PUT"; - req.headers = headers; - req.path = path; - - req.headers.emplace("Content-Type", content_type); - req.body = body; - - auto res = std::make_shared(); - - return send(req, *res) ? res : nullptr; +inline bool Client::process_and_close_socket( + socket_t sock, size_t request_count, + std::function + callback) { + request_count = std::min(request_count, keep_alive_max_count_); + return detail::process_and_close_socket(true, sock, request_count, + read_timeout_sec_, read_timeout_usec_, + callback); } -inline std::shared_ptr Client::Delete(const char* path) -{ - return Delete(path, Headers()); +inline bool Client::is_ssl() const { return false; } + +inline std::shared_ptr Client::Get(const char *path) { + return Get(path, Headers(), Progress()); } -inline std::shared_ptr Client::Delete(const char* path, const Headers& headers) -{ - Request req; - req.method = "DELETE"; - req.path = path; - req.headers = headers; - - auto res = std::make_shared(); - - return send(req, *res) ? res : nullptr; +inline std::shared_ptr Client::Get(const char *path, + Progress progress) { + return Get(path, Headers(), std::move(progress)); } -inline std::shared_ptr Client::Options(const char* path) -{ - return Options(path, Headers()); +inline std::shared_ptr Client::Get(const char *path, + const Headers &headers) { + return Get(path, headers, Progress()); } -inline std::shared_ptr Client::Options(const char* path, const Headers& headers) -{ - Request req; - req.method = "OPTIONS"; - req.path = path; - req.headers = headers; +inline std::shared_ptr +Client::Get(const char *path, const Headers &headers, Progress progress) { + Request req; + req.method = "GET"; + req.path = path; + req.headers = headers; + req.progress = std::move(progress); - auto res = std::make_shared(); - - return send(req, *res) ? res : nullptr; + auto res = std::make_shared(); + return send(req, *res) ? res : nullptr; } +inline std::shared_ptr Client::Get(const char *path, + ContentReceiver content_receiver) { + return Get(path, Headers(), nullptr, std::move(content_receiver), Progress()); +} + +inline std::shared_ptr Client::Get(const char *path, + ContentReceiver content_receiver, + Progress progress) { + return Get(path, Headers(), nullptr, std::move(content_receiver), + std::move(progress)); +} + +inline std::shared_ptr Client::Get(const char *path, + const Headers &headers, + ContentReceiver content_receiver) { + return Get(path, headers, nullptr, std::move(content_receiver), Progress()); +} + +inline std::shared_ptr Client::Get(const char *path, + const Headers &headers, + ContentReceiver content_receiver, + Progress progress) { + return Get(path, headers, nullptr, std::move(content_receiver), + std::move(progress)); +} + +inline std::shared_ptr Client::Get(const char *path, + const Headers &headers, + ResponseHandler response_handler, + ContentReceiver content_receiver) { + return Get(path, headers, std::move(response_handler), content_receiver, + Progress()); +} + +inline std::shared_ptr Client::Get(const char *path, + const Headers &headers, + ResponseHandler response_handler, + ContentReceiver content_receiver, + Progress progress) { + Request req; + req.method = "GET"; + req.path = path; + req.headers = headers; + req.response_handler = std::move(response_handler); + req.content_receiver = std::move(content_receiver); + req.progress = std::move(progress); + + auto res = std::make_shared(); + return send(req, *res) ? res : nullptr; +} + +inline std::shared_ptr Client::Head(const char *path) { + return Head(path, Headers()); +} + +inline std::shared_ptr Client::Head(const char *path, + const Headers &headers) { + Request req; + req.method = "HEAD"; + req.headers = headers; + req.path = path; + + auto res = std::make_shared(); + + return send(req, *res) ? res : nullptr; +} + +inline std::shared_ptr Client::Post(const char *path, + const std::string &body, + const char *content_type) { + return Post(path, Headers(), body, content_type); +} + +inline std::shared_ptr Client::Post(const char *path, + const Headers &headers, + const std::string &body, + const char *content_type) { + return send_with_content_provider("POST", path, headers, body, 0, nullptr, + content_type); +} + +inline std::shared_ptr Client::Post(const char *path, + const Params ¶ms) { + return Post(path, Headers(), params); +} + +inline std::shared_ptr Client::Post(const char *path, + size_t content_length, + ContentProvider content_provider, + const char *content_type) { + return Post(path, Headers(), content_length, content_provider, content_type); +} + +inline std::shared_ptr +Client::Post(const char *path, const Headers &headers, size_t content_length, + ContentProvider content_provider, const char *content_type) { + return send_with_content_provider("POST", path, headers, std::string(), + content_length, content_provider, + content_type); +} + +inline std::shared_ptr +Client::Post(const char *path, const Headers &headers, const Params ¶ms) { + std::string query; + for (auto it = params.begin(); it != params.end(); ++it) { + if (it != params.begin()) { query += "&"; } + query += it->first; + query += "="; + query += detail::encode_url(it->second); + } + + return Post(path, headers, query, "application/x-www-form-urlencoded"); +} + +inline std::shared_ptr +Client::Post(const char *path, const MultipartFormDataItems &items) { + return Post(path, Headers(), items); +} + +inline std::shared_ptr +Client::Post(const char *path, const Headers &headers, + const MultipartFormDataItems &items) { + auto boundary = detail::make_multipart_data_boundary(); + + std::string body; + + for (const auto &item : items) { + body += "--" + boundary + "\r\n"; + body += "Content-Disposition: form-data; name=\"" + item.name + "\""; + if (!item.filename.empty()) { + body += "; filename=\"" + item.filename + "\""; + } + body += "\r\n"; + if (!item.content_type.empty()) { + body += "Content-Type: " + item.content_type + "\r\n"; + } + body += "\r\n"; + body += item.content + "\r\n"; + } + + body += "--" + boundary + "--\r\n"; + + std::string content_type = "multipart/form-data; boundary=" + boundary; + return Post(path, headers, body, content_type.c_str()); +} + +inline std::shared_ptr Client::Put(const char *path, + const std::string &body, + const char *content_type) { + return Put(path, Headers(), body, content_type); +} + +inline std::shared_ptr Client::Put(const char *path, + const Headers &headers, + const std::string &body, + const char *content_type) { + return send_with_content_provider("PUT", path, headers, body, 0, nullptr, + content_type); +} + +inline std::shared_ptr Client::Put(const char *path, + size_t content_length, + ContentProvider content_provider, + const char *content_type) { + return Put(path, Headers(), content_length, content_provider, content_type); +} + +inline std::shared_ptr +Client::Put(const char *path, const Headers &headers, size_t content_length, + ContentProvider content_provider, const char *content_type) { + return send_with_content_provider("PUT", path, headers, std::string(), + content_length, content_provider, + content_type); +} + +inline std::shared_ptr Client::Put(const char *path, + const Params ¶ms) { + return Put(path, Headers(), params); +} + +inline std::shared_ptr +Client::Put(const char *path, const Headers &headers, const Params ¶ms) { + std::string query; + for (auto it = params.begin(); it != params.end(); ++it) { + if (it != params.begin()) { query += "&"; } + query += it->first; + query += "="; + query += detail::encode_url(it->second); + } + + return Put(path, headers, query, "application/x-www-form-urlencoded"); +} + +inline std::shared_ptr Client::Patch(const char *path, + const std::string &body, + const char *content_type) { + return Patch(path, Headers(), body, content_type); +} + +inline std::shared_ptr Client::Patch(const char *path, + const Headers &headers, + const std::string &body, + const char *content_type) { + return send_with_content_provider("PATCH", path, headers, body, 0, nullptr, + content_type); +} + +inline std::shared_ptr Client::Patch(const char *path, + size_t content_length, + ContentProvider content_provider, + const char *content_type) { + return Patch(path, Headers(), content_length, content_provider, content_type); +} + +inline std::shared_ptr +Client::Patch(const char *path, const Headers &headers, size_t content_length, + ContentProvider content_provider, const char *content_type) { + return send_with_content_provider("PATCH", path, headers, std::string(), + content_length, content_provider, + content_type); +} + +inline std::shared_ptr Client::Delete(const char *path) { + return Delete(path, Headers(), std::string(), nullptr); +} + +inline std::shared_ptr Client::Delete(const char *path, + const std::string &body, + const char *content_type) { + return Delete(path, Headers(), body, content_type); +} + +inline std::shared_ptr Client::Delete(const char *path, + const Headers &headers) { + return Delete(path, headers, std::string(), nullptr); +} + +inline std::shared_ptr Client::Delete(const char *path, + const Headers &headers, + const std::string &body, + const char *content_type) { + Request req; + req.method = "DELETE"; + req.headers = headers; + req.path = path; + + if (content_type) { req.headers.emplace("Content-Type", content_type); } + req.body = body; + + auto res = std::make_shared(); + + return send(req, *res) ? res : nullptr; +} + +inline std::shared_ptr Client::Options(const char *path) { + return Options(path, Headers()); +} + +inline std::shared_ptr Client::Options(const char *path, + const Headers &headers) { + Request req; + req.method = "OPTIONS"; + req.path = path; + req.headers = headers; + + auto res = std::make_shared(); + + return send(req, *res) ? res : nullptr; +} + +inline void Client::set_timeout_sec(time_t timeout_sec) { + timeout_sec_ = timeout_sec; +} + +inline void Client::set_read_timeout(time_t sec, time_t usec) { + read_timeout_sec_ = sec; + read_timeout_usec_ = usec; +} + +inline void Client::set_keep_alive_max_count(size_t count) { + keep_alive_max_count_ = count; +} + +inline void Client::set_basic_auth(const char *username, const char *password) { + basic_auth_username_ = username; + basic_auth_password_ = password; +} + +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT +inline void Client::set_digest_auth(const char *username, + const char *password) { + digest_auth_username_ = username; + digest_auth_password_ = password; +} +#endif + +inline void Client::set_follow_location(bool on) { follow_location_ = on; } + +inline void Client::set_compress(bool on) { compress_ = on; } + +inline void Client::set_interface(const char *intf) { interface_ = intf; } + +inline void Client::set_proxy(const char *host, int port) { + proxy_host_ = host; + proxy_port_ = port; +} + +inline void Client::set_proxy_basic_auth(const char *username, + const char *password) { + proxy_basic_auth_username_ = username; + proxy_basic_auth_password_ = password; +} + +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT +inline void Client::set_proxy_digest_auth(const char *username, + const char *password) { + proxy_digest_auth_username_ = username; + proxy_digest_auth_password_ = password; +} +#endif + +inline void Client::set_logger(Logger logger) { logger_ = std::move(logger); } + /* * SSL Implementation */ @@ -2152,193 +4307,446 @@ inline std::shared_ptr Client::Options(const char* path, const Headers namespace detail { template -inline bool read_and_close_socket_ssl( - socket_t sock, size_t keep_alive_max_count, - // TODO: OpenSSL 1.0.2 occasionally crashes... - // The upcoming 1.1.0 is going to be thread safe. - SSL_CTX* ctx, std::mutex& ctx_mutex, - U SSL_connect_or_accept, V setup, - T callback) -{ - SSL* ssl = nullptr; - { - std::lock_guard guard(ctx_mutex); +inline bool process_and_close_socket_ssl( + bool is_client_request, socket_t sock, size_t keep_alive_max_count, + time_t read_timeout_sec, time_t read_timeout_usec, SSL_CTX *ctx, + std::mutex &ctx_mutex, U SSL_connect_or_accept, V setup, T callback) { + assert(keep_alive_max_count > 0); - ssl = SSL_new(ctx); - if (!ssl) { - return false; - } - } + SSL *ssl = nullptr; + { + std::lock_guard guard(ctx_mutex); + ssl = SSL_new(ctx); + } - auto bio = BIO_new_socket(sock, BIO_NOCLOSE); - SSL_set_bio(ssl, bio, bio); + if (!ssl) { + close_socket(sock); + return false; + } - setup(ssl); - - SSL_connect_or_accept(ssl); - - bool ret = false; - - if (keep_alive_max_count > 0) { - auto count = keep_alive_max_count; - while (count > 0 && - detail::select_read(sock, - CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND, - CPPHTTPLIB_KEEPALIVE_TIMEOUT_USECOND) > 0) { - SSLSocketStream strm(sock, ssl); - auto last_connection = count == 1; - auto connection_close = false; - - ret = callback(strm, last_connection, connection_close); - if (!ret || connection_close) { - break; - } - - count--; - } - } else { - SSLSocketStream strm(sock, ssl); - auto dummy_connection_close = false; - ret = callback(strm, true, dummy_connection_close); - } + auto bio = BIO_new_socket(static_cast(sock), BIO_NOCLOSE); + SSL_set_bio(ssl, bio, bio); + if (!setup(ssl)) { SSL_shutdown(ssl); - { - std::lock_guard guard(ctx_mutex); - SSL_free(ssl); + std::lock_guard guard(ctx_mutex); + SSL_free(ssl); } close_socket(sock); + return false; + } - return ret; + auto ret = false; + + if (SSL_connect_or_accept(ssl) == 1) { + if (keep_alive_max_count > 1) { + auto count = keep_alive_max_count; + while (count > 0 && + (is_client_request || + detail::select_read(sock, CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND, + CPPHTTPLIB_KEEPALIVE_TIMEOUT_USECOND) > 0)) { + SSLSocketStream strm(sock, ssl, read_timeout_sec, read_timeout_usec); + auto last_connection = count == 1; + auto connection_close = false; + + ret = callback(ssl, strm, last_connection, connection_close); + if (!ret || connection_close) { break; } + + count--; + } + } else { + SSLSocketStream strm(sock, ssl, read_timeout_sec, read_timeout_usec); + auto dummy_connection_close = false; + ret = callback(ssl, strm, true, dummy_connection_close); + } + } + + SSL_shutdown(ssl); + { + std::lock_guard guard(ctx_mutex); + SSL_free(ssl); + } + + close_socket(sock); + + return ret; } +#if OPENSSL_VERSION_NUMBER < 0x10100000L +static std::shared_ptr> openSSL_locks_; + +class SSLThreadLocks { +public: + SSLThreadLocks() { + openSSL_locks_ = + std::make_shared>(CRYPTO_num_locks()); + CRYPTO_set_locking_callback(locking_callback); + } + + ~SSLThreadLocks() { CRYPTO_set_locking_callback(nullptr); } + +private: + static void locking_callback(int mode, int type, const char * /*file*/, + int /*line*/) { + auto &locks = *openSSL_locks_; + if (mode & CRYPTO_LOCK) { + locks[type].lock(); + } else { + locks[type].unlock(); + } + } +}; + +#endif + class SSLInit { public: - SSLInit() { - SSL_load_error_strings(); - SSL_library_init(); - } + SSLInit() { +#if OPENSSL_VERSION_NUMBER < 0x1010001fL + SSL_load_error_strings(); + SSL_library_init(); +#else + OPENSSL_init_ssl( + OPENSSL_INIT_LOAD_SSL_STRINGS | OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL); +#endif + } + + ~SSLInit() { +#if OPENSSL_VERSION_NUMBER < 0x1010001fL + ERR_free_strings(); +#endif + } + +private: +#if OPENSSL_VERSION_NUMBER < 0x10100000L + SSLThreadLocks thread_init_; +#endif }; +// SSL socket stream implementation +inline SSLSocketStream::SSLSocketStream(socket_t sock, SSL *ssl, + time_t read_timeout_sec, + time_t read_timeout_usec) + : sock_(sock), ssl_(ssl), read_timeout_sec_(read_timeout_sec), + read_timeout_usec_(read_timeout_usec) {} + +inline SSLSocketStream::~SSLSocketStream() {} + +inline bool SSLSocketStream::is_readable() const { + return detail::select_read(sock_, read_timeout_sec_, read_timeout_usec_) > 0; +} + +inline bool SSLSocketStream::is_writable() const { + return detail::select_write(sock_, 0, 0) > 0; +} + +inline int SSLSocketStream::read(char *ptr, size_t size) { + if (SSL_pending(ssl_) > 0 || + select_read(sock_, read_timeout_sec_, read_timeout_usec_) > 0) { + return SSL_read(ssl_, ptr, static_cast(size)); + } + return -1; +} + +inline int SSLSocketStream::write(const char *ptr, size_t size) { + if (is_writable()) { return SSL_write(ssl_, ptr, static_cast(size)); } + return -1; +} + +inline std::string SSLSocketStream::get_remote_addr() const { + return detail::get_remote_addr(sock_); +} + static SSLInit sslinit_; } // namespace detail -// SSL socket stream implementation -inline SSLSocketStream::SSLSocketStream(socket_t sock, SSL* ssl) - : sock_(sock), ssl_(ssl) -{ -} - -inline SSLSocketStream::~SSLSocketStream() -{ -} - -inline int SSLSocketStream::read(char* ptr, size_t size) -{ - return SSL_read(ssl_, ptr, size); -} - -inline int SSLSocketStream::write(const char* ptr, size_t size) -{ - return SSL_write(ssl_, ptr, size); -} - -inline int SSLSocketStream::write(const char* ptr) -{ - return write(ptr, strlen(ptr)); -} - -inline std::string SSLSocketStream::get_remote_addr() { - return detail::get_remote_addr(sock_); -} - // SSL HTTP server implementation -inline SSLServer::SSLServer(const char* cert_path, const char* private_key_path) -{ - ctx_ = SSL_CTX_new(SSLv23_server_method()); +inline SSLServer::SSLServer(const char *cert_path, const char *private_key_path, + const char *client_ca_cert_file_path, + const char *client_ca_cert_dir_path) { + ctx_ = SSL_CTX_new(SSLv23_server_method()); - if (ctx_) { - SSL_CTX_set_options(ctx_, - SSL_OP_ALL | SSL_OP_NO_SSLv2 | SSL_OP_NO_SSLv3 | + if (ctx_) { + SSL_CTX_set_options(ctx_, + SSL_OP_ALL | SSL_OP_NO_SSLv2 | SSL_OP_NO_SSLv3 | SSL_OP_NO_COMPRESSION | SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION); - // auto ecdh = EC_KEY_new_by_curve_name(NID_X9_62_prime256v1); - // SSL_CTX_set_tmp_ecdh(ctx_, ecdh); - // EC_KEY_free(ecdh); + // auto ecdh = EC_KEY_new_by_curve_name(NID_X9_62_prime256v1); + // SSL_CTX_set_tmp_ecdh(ctx_, ecdh); + // EC_KEY_free(ecdh); - if (SSL_CTX_use_certificate_file(ctx_, cert_path, SSL_FILETYPE_PEM) != 1 || - SSL_CTX_use_PrivateKey_file(ctx_, private_key_path, SSL_FILETYPE_PEM) != 1) { - SSL_CTX_free(ctx_); - ctx_ = nullptr; - } + if (SSL_CTX_use_certificate_chain_file(ctx_, cert_path) != 1 || + SSL_CTX_use_PrivateKey_file(ctx_, private_key_path, SSL_FILETYPE_PEM) != + 1) { + SSL_CTX_free(ctx_); + ctx_ = nullptr; + } else if (client_ca_cert_file_path || client_ca_cert_dir_path) { + // if (client_ca_cert_file_path) { + // auto list = SSL_load_client_CA_file(client_ca_cert_file_path); + // SSL_CTX_set_client_CA_list(ctx_, list); + // } + + SSL_CTX_load_verify_locations(ctx_, client_ca_cert_file_path, + client_ca_cert_dir_path); + + SSL_CTX_set_verify( + ctx_, + SSL_VERIFY_PEER | + SSL_VERIFY_FAIL_IF_NO_PEER_CERT, // SSL_VERIFY_CLIENT_ONCE, + nullptr); } + } } -inline SSLServer::~SSLServer() -{ - if (ctx_) { - SSL_CTX_free(ctx_); - } +inline SSLServer::~SSLServer() { + if (ctx_) { SSL_CTX_free(ctx_); } } -inline bool SSLServer::is_valid() const -{ - return ctx_; -} +inline bool SSLServer::is_valid() const { return ctx_; } -inline bool SSLServer::read_and_close_socket(socket_t sock) -{ - return detail::read_and_close_socket_ssl( - sock, - keep_alive_max_count_, - ctx_, ctx_mutex_, - SSL_accept, - [](SSL* /*ssl*/) {}, - [this](Stream& strm, bool last_connection, bool& connection_close) { - return process_request(strm, last_connection, connection_close); - }); +inline bool SSLServer::process_and_close_socket(socket_t sock) { + return detail::process_and_close_socket_ssl( + false, sock, keep_alive_max_count_, read_timeout_sec_, read_timeout_usec_, + ctx_, ctx_mutex_, SSL_accept, [](SSL * /*ssl*/) { return true; }, + [this](SSL *ssl, Stream &strm, bool last_connection, + bool &connection_close) { + return process_request(strm, last_connection, connection_close, + [&](Request &req) { req.ssl = ssl; }); + }); } // SSL HTTP client implementation -inline SSLClient::SSLClient(const char* host, int port, size_t timeout_sec) - : Client(host, port, timeout_sec) -{ - ctx_ = SSL_CTX_new(SSLv23_client_method()); -} +inline SSLClient::SSLClient(const std::string &host, int port, + const std::string &client_cert_path, + const std::string &client_key_path) + : Client(host, port, client_cert_path, client_key_path) { + ctx_ = SSL_CTX_new(SSLv23_client_method()); -inline SSLClient::~SSLClient() -{ - if (ctx_) { - SSL_CTX_free(ctx_); + detail::split(&host_[0], &host_[host_.size()], '.', + [&](const char *b, const char *e) { + host_components_.emplace_back(std::string(b, e)); + }); + if (!client_cert_path.empty() && !client_key_path.empty()) { + if (SSL_CTX_use_certificate_file(ctx_, client_cert_path.c_str(), + SSL_FILETYPE_PEM) != 1 || + SSL_CTX_use_PrivateKey_file(ctx_, client_key_path.c_str(), + SSL_FILETYPE_PEM) != 1) { + SSL_CTX_free(ctx_); + ctx_ = nullptr; } + } } -inline bool SSLClient::is_valid() const -{ - return ctx_; +inline SSLClient::~SSLClient() { + if (ctx_) { SSL_CTX_free(ctx_); } } -inline bool SSLClient::read_and_close_socket(socket_t sock, Request& req, Response& res) -{ - return is_valid() && detail::read_and_close_socket_ssl( - sock, 0, - ctx_, ctx_mutex_, - SSL_connect, - [&](SSL* ssl) { - SSL_set_tlsext_host_name(ssl, host_.c_str()); - }, - [&](Stream& strm, bool /*last_connection*/, bool& connection_close) { - return process_request(strm, req, res, connection_close); - }); +inline bool SSLClient::is_valid() const { return ctx_; } + +inline void SSLClient::set_ca_cert_path(const char *ca_cert_file_path, + const char *ca_cert_dir_path) { + if (ca_cert_file_path) { ca_cert_file_path_ = ca_cert_file_path; } + if (ca_cert_dir_path) { ca_cert_dir_path_ = ca_cert_dir_path; } +} + +inline void SSLClient::enable_server_certificate_verification(bool enabled) { + server_certificate_verification_ = enabled; +} + +inline long SSLClient::get_openssl_verify_result() const { + return verify_result_; +} + +inline SSL_CTX *SSLClient::ssl_context() const noexcept { return ctx_; } + +inline bool SSLClient::process_and_close_socket( + socket_t sock, size_t request_count, + std::function + callback) { + + request_count = std::min(request_count, keep_alive_max_count_); + + return is_valid() && + detail::process_and_close_socket_ssl( + true, sock, request_count, read_timeout_sec_, read_timeout_usec_, + ctx_, ctx_mutex_, + [&](SSL *ssl) { + if (ca_cert_file_path_.empty()) { + SSL_CTX_set_verify(ctx_, SSL_VERIFY_NONE, nullptr); + } else { + if (!SSL_CTX_load_verify_locations( + ctx_, ca_cert_file_path_.c_str(), nullptr)) { + return false; + } + SSL_CTX_set_verify(ctx_, SSL_VERIFY_PEER, nullptr); + } + + if (SSL_connect(ssl) != 1) { return false; } + + if (server_certificate_verification_) { + verify_result_ = SSL_get_verify_result(ssl); + + if (verify_result_ != X509_V_OK) { return false; } + + auto server_cert = SSL_get_peer_certificate(ssl); + + if (server_cert == nullptr) { return false; } + + if (!verify_host(server_cert)) { + X509_free(server_cert); + return false; + } + X509_free(server_cert); + } + + return true; + }, + [&](SSL *ssl) { + SSL_set_tlsext_host_name(ssl, host_.c_str()); + return true; + }, + [&](SSL * /*ssl*/, Stream &strm, bool last_connection, + bool &connection_close) { + return callback(strm, last_connection, connection_close); + }); +} + +inline bool SSLClient::is_ssl() const { return true; } + +inline bool SSLClient::verify_host(X509 *server_cert) const { + /* Quote from RFC2818 section 3.1 "Server Identity" + + If a subjectAltName extension of type dNSName is present, that MUST + be used as the identity. Otherwise, the (most specific) Common Name + field in the Subject field of the certificate MUST be used. Although + the use of the Common Name is existing practice, it is deprecated and + Certification Authorities are encouraged to use the dNSName instead. + + Matching is performed using the matching rules specified by + [RFC2459]. If more than one identity of a given type is present in + the certificate (e.g., more than one dNSName name, a match in any one + of the set is considered acceptable.) Names may contain the wildcard + character * which is considered to match any single domain name + component or component fragment. E.g., *.a.com matches foo.a.com but + not bar.foo.a.com. f*.com matches foo.com but not bar.com. + + In some cases, the URI is specified as an IP address rather than a + hostname. In this case, the iPAddress subjectAltName must be present + in the certificate and must exactly match the IP in the URI. + + */ + return verify_host_with_subject_alt_name(server_cert) || + verify_host_with_common_name(server_cert); +} + +inline bool +SSLClient::verify_host_with_subject_alt_name(X509 *server_cert) const { + auto ret = false; + + auto type = GEN_DNS; + + struct in6_addr addr6; + struct in_addr addr; + size_t addr_len = 0; + +#ifndef __MINGW32__ + if (inet_pton(AF_INET6, host_.c_str(), &addr6)) { + type = GEN_IPADD; + addr_len = sizeof(struct in6_addr); + } else if (inet_pton(AF_INET, host_.c_str(), &addr)) { + type = GEN_IPADD; + addr_len = sizeof(struct in_addr); + } +#endif + + auto alt_names = static_cast( + X509_get_ext_d2i(server_cert, NID_subject_alt_name, nullptr, nullptr)); + + if (alt_names) { + auto dsn_matched = false; + auto ip_mached = false; + + auto count = sk_GENERAL_NAME_num(alt_names); + + for (auto i = 0; i < count && !dsn_matched; i++) { + auto val = sk_GENERAL_NAME_value(alt_names, i); + if (val->type == type) { + auto name = (const char *)ASN1_STRING_get0_data(val->d.ia5); + auto name_len = (size_t)ASN1_STRING_length(val->d.ia5); + + if (strlen(name) == name_len) { + switch (type) { + case GEN_DNS: dsn_matched = check_host_name(name, name_len); break; + + case GEN_IPADD: + if (!memcmp(&addr6, name, addr_len) || + !memcmp(&addr, name, addr_len)) { + ip_mached = true; + } + break; + } + } + } + } + + if (dsn_matched || ip_mached) { ret = true; } + } + + GENERAL_NAMES_free((STACK_OF(GENERAL_NAME) *)alt_names); + + return ret; +} + +inline bool SSLClient::verify_host_with_common_name(X509 *server_cert) const { + const auto subject_name = X509_get_subject_name(server_cert); + + if (subject_name != nullptr) { + char name[BUFSIZ]; + auto name_len = X509_NAME_get_text_by_NID(subject_name, NID_commonName, + name, sizeof(name)); + + if (name_len != -1) { return check_host_name(name, name_len); } + } + + return false; +} + +inline bool SSLClient::check_host_name(const char *pattern, + size_t pattern_len) const { + if (host_.size() == pattern_len && host_ == pattern) { return true; } + + // Wildcard match + // https://bugs.launchpad.net/ubuntu/+source/firefox-3.0/+bug/376484 + std::vector pattern_components; + detail::split(&pattern[0], &pattern[pattern_len], '.', + [&](const char *b, const char *e) { + pattern_components.emplace_back(std::string(b, e)); + }); + + if (host_components_.size() != pattern_components.size()) { return false; } + + auto itr = pattern_components.begin(); + for (const auto &h : host_components_) { + auto &p = *itr; + if (p != h && p != "*") { + auto partial_match = (p.size() > 0 && p[p.size() - 1] == '*' && + !p.compare(0, p.size() - 1, h)); + if (!partial_match) { return false; } + } + ++itr; + } + + return true; } #endif +// ---------------------------------------------------------------------------- + } // namespace httplib -#endif - -// vim: et ts=4 sw=4 cin cino={1s ff=unix +#endif // CPPHTTPLIB_HTTPLIB_H \ No newline at end of file diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt index 064e44f94..423d13630 100644 --- a/src/core/CMakeLists.txt +++ b/src/core/CMakeLists.txt @@ -466,9 +466,17 @@ create_target_directory_groups(core) target_link_libraries(core PUBLIC common PRIVATE audio_core network video_core) target_link_libraries(core PUBLIC Boost::boost PRIVATE cryptopp fmt open_source_archives) + if (ENABLE_WEB_SERVICE) - target_compile_definitions(core PRIVATE -DENABLE_WEB_SERVICE) - target_link_libraries(core PRIVATE web_service) + get_directory_property(OPENSSL_LIBS + DIRECTORY ${PROJECT_SOURCE_DIR}/externals/libressl + DEFINITION OPENSSL_LIBS) + + target_compile_definitions(core PRIVATE -DENABLE_WEB_SERVICE -DCPPHTTPLIB_OPENSSL_SUPPORT) + target_link_libraries(core PRIVATE web_service ${OPENSSL_LIBS} httplib lurlparser) + if (ANDROID) + target_link_libraries(core PRIVATE ifaddrs) + endif() endif() if (ARCHITECTURE_x86_64) diff --git a/src/core/hle/service/http_c.cpp b/src/core/hle/service/http_c.cpp index 221f3cc20..f0e805e51 100644 --- a/src/core/hle/service/http_c.cpp +++ b/src/core/hle/service/http_c.cpp @@ -2,8 +2,13 @@ // Licensed under GPLv2 or any later version // Refer to the license.txt file included. +#include +#ifdef ENABLE_WEB_SERVICE +#include +#endif #include #include +#include "common/assert.h" #include "core/core.h" #include "core/file_sys/archive_ncch.h" #include "core/file_sys/file_backend.h" @@ -48,6 +53,82 @@ const ResultCode ERROR_WRONG_CERT_HANDLE = // 0xD8A0A0C9 const ResultCode ERROR_CERT_ALREADY_SET = // 0xD8A0A03D ResultCode(61, ErrorModule::HTTP, ErrorSummary::InvalidState, ErrorLevel::Permanent); +void Context::MakeRequest() { + ASSERT(state == RequestState::NotStarted); + +#ifdef ENABLE_WEB_SERVICE + LUrlParser::clParseURL parsedUrl = LUrlParser::clParseURL::ParseURL(url); + int port; + std::unique_ptr client; + if (parsedUrl.m_Scheme == "http") { + if (!parsedUrl.GetPort(&port)) { + port = 80; + } + // TODO(B3N30): Support for setting timeout + // Figure out what the default timeout on 3DS is + client = std::make_unique(parsedUrl.m_Host.c_str(), port); + } else { + if (!parsedUrl.GetPort(&port)) { + port = 443; + } + // TODO(B3N30): Support for setting timeout + // Figure out what the default timeout on 3DS is + + auto ssl_client = std::make_unique(parsedUrl.m_Host, port); + SSL_CTX* ctx = ssl_client->ssl_context(); + client = std::move(ssl_client); + + if (auto client_cert = ssl_config.client_cert_ctx.lock()) { + SSL_CTX_use_certificate_ASN1(ctx, client_cert->certificate.size(), + client_cert->certificate.data()); + SSL_CTX_use_PrivateKey_ASN1(EVP_PKEY_RSA, ctx, client_cert->private_key.data(), + client_cert->private_key.size()); + } + + // TODO(B3N30): Check for SSLOptions-Bits and set the verify method accordingly + // https://www.3dbrew.org/wiki/SSL_Services#SSLOpt + // Hack: Since for now RootCerts are not implemented we set the VerifyMode to None. + SSL_CTX_set_verify(ctx, SSL_VERIFY_NONE, NULL); + } + + state = RequestState::InProgress; + + static const std::unordered_map request_method_strings{ + {RequestMethod::Get, "GET"}, {RequestMethod::Post, "POST"}, + {RequestMethod::Head, "HEAD"}, {RequestMethod::Put, "PUT"}, + {RequestMethod::Delete, "DELETE"}, {RequestMethod::PostEmpty, "POST"}, + {RequestMethod::PutEmpty, "PUT"}, + }; + + httplib::Request request; + request.method = request_method_strings.at(method); + request.path = url; + // TODO(B3N30): Add post data body + request.progress = [this](u64 current, u64 total) -> bool { + // TODO(B3N30): Is there a state that shows response header are available + current_download_size_bytes = current; + total_download_size_bytes = total; + return true; + }; + + for (const auto& header : headers) { + request.headers.emplace(header.name, header.value); + } + + if (!client->send(request, response)) { + LOG_ERROR(Service_HTTP, "Request failed"); + state = RequestState::TimedOut; + } else { + LOG_DEBUG(Service_HTTP, "Request successful"); + // TODO(B3N30): Verify this state on HW + state = RequestState::ReadyToDownloadContent; + } +#else + LOG_ERROR(Service_HTTP, "Tried to make request but WebServices is not enabled in this build"); + state = RequestState::TimedOut; +#endif +} + void HTTP_C::Initialize(Kernel::HLERequestContext& ctx) { IPC::RequestParser rp(ctx, 0x1, 1, 4); const u32 shmem_size = rp.Pop(); @@ -152,7 +233,15 @@ void HTTP_C::BeginRequest(Kernel::HLERequestContext& ctx) { auto itr = contexts.find(context_handle); ASSERT(itr != contexts.end()); - // TODO(B3N30): Make the request + // On a 3DS BeginRequest and BeginRequestAsync will push the Request to a worker queue. + // You can only enqueue 8 requests at the same time. + // trying to enqueue any more will either fail (BeginRequestAsync), or block (BeginRequest) + // Note that you only can have 8 Contexts at a time. So this difference shouldn't matter + // Then there are 3? worker threads that pop the requests from the queue and send them + // For now make every request async in it's own thread. + + itr->second.request_future = + std::async(std::launch::async, &Context::MakeRequest, std::ref(itr->second)); IPC::RequestBuilder rb = rp.MakeBuilder(1, 0); rb.Push(RESULT_SUCCESS); @@ -197,7 +286,15 @@ void HTTP_C::BeginRequestAsync(Kernel::HLERequestContext& ctx) { auto itr = contexts.find(context_handle); ASSERT(itr != contexts.end()); - // TODO(B3N30): Make the request + // On a 3DS BeginRequest and BeginRequestAsync will push the Request to a worker queue. + // You can only enqueue 8 requests at the same time. + // trying to enqueue any more will either fail (BeginRequestAsync), or block (BeginRequest) + // Note that you only can have 8 Contexts at a time. So this difference shouldn't matter + // Then there are 3? worker threads that pop the requests from the queue and send them + // For now make every request async in it's own thread. + + itr->second.request_future = + std::async(std::launch::async, &Context::MakeRequest, std::ref(itr->second)); IPC::RequestBuilder rb = rp.MakeBuilder(1, 0); rb.Push(RESULT_SUCCESS); @@ -260,7 +357,7 @@ void HTTP_C::CreateContext(Kernel::HLERequestContext& ctx) { return; } - contexts.emplace(++context_counter, Context()); + contexts.try_emplace(++context_counter); contexts[context_counter].url = std::move(url); contexts[context_counter].method = method; contexts[context_counter].state = RequestState::NotStarted; @@ -307,10 +404,9 @@ void HTTP_C::CloseContext(Kernel::HLERequestContext& ctx) { } // TODO(Subv): What happens if you try to close a context that's currently being used? - ASSERT(itr->second.state == RequestState::NotStarted); - // TODO(Subv): Make sure that only the session that created the context can close it. + // Note that this will block if a request is still in progress contexts.erase(itr); session_data->num_http_contexts--; diff --git a/src/core/hle/service/http_c.h b/src/core/hle/service/http_c.h index 91a455820..0742de8a7 100644 --- a/src/core/hle/service/http_c.h +++ b/src/core/hle/service/http_c.h @@ -4,11 +4,18 @@ #pragma once +#include #include #include #include #include #include +#ifdef ENABLE_WEB_SERVICE +#if defined(__ANDROID__) +#include +#endif +#include +#endif #include "core/hle/kernel/shared_memory.h" #include "core/hle/service/service.h" @@ -78,8 +85,7 @@ public: Context(const Context&) = delete; Context& operator=(const Context&) = delete; - Context(Context&& other) = default; - Context& operator=(Context&&) = default; + void MakeRequest(); struct Proxy { std::string url; @@ -116,13 +122,20 @@ public: u32 session_id; std::string url; RequestMethod method; - RequestState state = RequestState::NotStarted; + std::atomic state = RequestState::NotStarted; std::optional proxy; std::optional basic_auth; SSLConfig ssl_config{}; u32 socket_buffer_size; std::vector headers; std::vector post_data; + + std::future request_future; + std::atomic current_download_size_bytes; + std::atomic total_download_size_bytes; +#ifdef ENABLE_WEB_SERVICE + httplib::Response response; +#endif }; struct SessionData : public Kernel::SessionRequestHandler::SessionDataBase { diff --git a/src/web_service/CMakeLists.txt b/src/web_service/CMakeLists.txt index c3d42fe8b..5695e25f0 100644 --- a/src/web_service/CMakeLists.txt +++ b/src/web_service/CMakeLists.txt @@ -18,3 +18,6 @@ get_directory_property(OPENSSL_LIBS DEFINITION OPENSSL_LIBS) target_compile_definitions(web_service PRIVATE -DCPPHTTPLIB_OPENSSL_SUPPORT) target_link_libraries(web_service PRIVATE common network json-headers ${OPENSSL_LIBS} httplib lurlparser cpp-jwt) +if (ANDROID) + target_link_libraries(web_service PRIVATE ifaddrs) +endif() diff --git a/src/web_service/web_backend.cpp b/src/web_service/web_backend.cpp index 6683f459f..c047677f9 100644 --- a/src/web_service/web_backend.cpp +++ b/src/web_service/web_backend.cpp @@ -8,6 +8,9 @@ #include #include #include +#if defined(__ANDROID__) +#include +#endif #include #include "common/common_types.h" #include "common/logging/log.h" @@ -73,14 +76,14 @@ struct Client::Impl { if (!parsedUrl.GetPort(&port)) { port = HTTP_PORT; } - cli = std::make_unique(parsedUrl.m_Host.c_str(), port, - TIMEOUT_SECONDS); + cli = std::make_unique(parsedUrl.m_Host.c_str(), port); + cli->set_timeout_sec(TIMEOUT_SECONDS); } else if (parsedUrl.m_Scheme == "https") { if (!parsedUrl.GetPort(&port)) { port = HTTPS_PORT; } - cli = std::make_unique(parsedUrl.m_Host.c_str(), port, - TIMEOUT_SECONDS); + cli = std::make_unique(parsedUrl.m_Host.c_str(), port); + cli->set_timeout_sec(TIMEOUT_SECONDS); } else { LOG_ERROR(WebService, "Bad URL scheme {}", parsedUrl.m_Scheme); return Common::WebResult{Common::WebResult::Code::InvalidURL, "Bad URL scheme"};