mirror of
https://we.phorge.it/source/phorge.git
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70463e8a16
Summary: Fixes T11203. Subversion handling of `SVN_SSH` commands requires some additional finesse for nonstandard remote SSH ports. We get `domain.com:port` in the command, so parse it out if it's present. Test Plan: @enckse confirmed this locally in T11203. Reviewers: chad Reviewed By: chad Subscribers: enckse Maniphest Tasks: T11203 Differential Revision: https://secure.phabricator.com/D16172
128 lines
3.3 KiB
PHP
Executable file
128 lines
3.3 KiB
PHP
Executable file
#!/usr/bin/env php
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<?php
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// This is a wrapper script for Git, Mercurial, and Subversion. It primarily
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// serves to inject "-o StrictHostKeyChecking=no" into the SSH arguments.
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// In some cases, Subversion sends us SIGTERM. If we don't catch the signal and
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// react to it, we won't run object destructors by default and thus won't clean
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// up temporary files. Declare ticks so we can install a signal handler.
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declare(ticks=1);
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$root = dirname(dirname(dirname(__FILE__)));
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require_once $root.'/scripts/__init_script__.php';
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// Contrary to the documentation, Git may pass a "-p" flag. If it does, respect
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// it and move it before the "--" argument.
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$args = new PhutilArgumentParser($argv);
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$args->parsePartial(
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array(
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array(
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'name' => 'port',
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'short' => 'p',
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'param' => pht('port'),
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'help' => pht('Port number to connect to.'),
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),
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));
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$unconsumed_argv = $args->getUnconsumedArgumentVector();
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if (function_exists('pcntl_signal')) {
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pcntl_signal(SIGTERM, 'ssh_connect_signal');
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}
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function ssh_connect_signal($signo) {
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// This is just letting destructors fire. In particular, we want to clean
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// up any temporary files we wrote. See T10547.
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exit(128 + $signo);
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}
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$pattern = array();
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$arguments = array();
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$pattern[] = 'ssh';
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$pattern[] = '-o';
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$pattern[] = 'StrictHostKeyChecking=no';
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// This prevents "known host" failures, and covers for issues where HOME is set
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// to something unusual.
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$pattern[] = '-o';
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$pattern[] = 'UserKnownHostsFile=/dev/null';
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$as_device = getenv('PHABRICATOR_AS_DEVICE');
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$credential_phid = getenv('PHABRICATOR_CREDENTIAL');
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if ($as_device) {
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$device = AlmanacKeys::getLiveDevice();
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if (!$device) {
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throw new Exception(
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pht(
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'Attempting to create an SSH connection that authenticates with '.
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'the current device, but this host is not configured as a cluster '.
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'device.'));
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}
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if ($credential_phid) {
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throw new Exception(
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pht(
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'Attempting to proxy an SSH connection that authenticates with '.
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'both the current device and a specific credential. These options '.
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'are mutually exclusive.'));
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}
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}
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if ($credential_phid) {
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$viewer = PhabricatorUser::getOmnipotentUser();
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$key = PassphraseSSHKey::loadFromPHID($credential_phid, $viewer);
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$pattern[] = '-l %P';
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$arguments[] = $key->getUsernameEnvelope();
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$pattern[] = '-i %P';
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$arguments[] = $key->getKeyfileEnvelope();
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}
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if ($as_device) {
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$pattern[] = '-l %R';
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$arguments[] = AlmanacKeys::getClusterSSHUser();
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$pattern[] = '-i %R';
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$arguments[] = AlmanacKeys::getKeyPath('device.key');
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}
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// Subversion passes us a host in the form "domain.com:port", which is not
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// valid for normal SSH but which we can parse into a valid "-p" flag.
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$passthru_args = $unconsumed_argv;
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$host = array_shift($passthru_args);
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$parts = explode(':', $host, 2);
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$host = $parts[0];
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$port = $args->getArg('port');
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if (!$port) {
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if (count($parts) == 2) {
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$port = $parts[1];
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}
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}
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if ($port) {
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$pattern[] = '-p %d';
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$arguments[] = $port;
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}
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$pattern[] = '--';
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$pattern[] = '%s';
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$arguments[] = $host;
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foreach ($passthru_args as $passthru_arg) {
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$pattern[] = '%s';
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$arguments[] = $passthru_arg;
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}
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$pattern = implode(' ', $pattern);
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array_unshift($arguments, $pattern);
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$err = newv('PhutilExecPassthru', $arguments)
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->execute();
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exit($err);
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