From e04f75e1bfd2ed49665a46c8ddd5e72b99b56536 Mon Sep 17 00:00:00 2001
From: zhupengfei <zhupf321@gmail.com>
Date: Sat, 27 Oct 2018 15:45:21 +0800
Subject: [PATCH] web_backend: added GetExternalJWT function

To support requesting external JWTs to use them as verification tokens.
---
 src/web_service/web_backend.cpp | 8 +++++++-
 src/web_service/web_backend.h   | 7 +++++++
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/src/web_service/web_backend.cpp b/src/web_service/web_backend.cpp
index 84d6105d7..689be8c9c 100644
--- a/src/web_service/web_backend.cpp
+++ b/src/web_service/web_backend.cpp
@@ -7,6 +7,7 @@
 #include <mutex>
 #include <string>
 #include <LUrlParser.h>
+#include <fmt/format.h>
 #include <httplib.h>
 #include "common/common_types.h"
 #include "common/logging/log.h"
@@ -134,7 +135,8 @@ struct Client::Impl {
         }
 
         if (content_type->second.find("application/json") == std::string::npos &&
-            content_type->second.find("text/html; charset=utf-8") == std::string::npos) {
+            content_type->second.find("text/html; charset=utf-8") == std::string::npos &&
+            content_type->second.find("text/plain; charset=utf-8") == std::string::npos) {
             LOG_ERROR(WebService, "{} to {} returned wrong content: {}", method, host + path,
                       content_type->second);
             return Common::WebResult{Common::WebResult::Code::WrongContent, "Wrong content"};
@@ -193,4 +195,8 @@ Common::WebResult Client::DeleteJson(const std::string& path, const std::string&
     return impl->GenericJson("DELETE", path, data, allow_anonymous);
 }
 
+Common::WebResult Client::GetExternalJWT(const std::string& audience) {
+    return PostJson(fmt::format("/jwt/external/{}", audience), "", false);
+}
+
 } // namespace WebService
diff --git a/src/web_service/web_backend.h b/src/web_service/web_backend.h
index c637e09df..d366d642c 100644
--- a/src/web_service/web_backend.h
+++ b/src/web_service/web_backend.h
@@ -46,6 +46,13 @@ public:
     Common::WebResult DeleteJson(const std::string& path, const std::string& data,
                                  bool allow_anonymous);
 
+    /**
+     * Requests an external JWT for the specific audience provided.
+     * @param audience the audience of the JWT requested.
+     * @return the result of the request.
+     */
+    Common::WebResult GetExternalJWT(const std::string& audience);
+
 private:
     struct Impl;
     std::unique_ptr<Impl> impl;