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index.php
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Sat, Apr 27, 16:29

index.php

<?php
/*
* Copyright 2011 Facebook, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
$__start__ = microtime(true);
error_reporting(E_ALL | E_STRICT);
phabricator_detect_insane_memory_limit();
ini_set('memory_limit', -1);
$env = getenv('PHABRICATOR_ENV'); // Apache
if (!$env) {
if (isset($_ENV['PHABRICATOR_ENV'])) {
$env = $_ENV['PHABRICATOR_ENV'];
}
}
if (!$env) {
phabricator_fatal_config_error(
"The 'PHABRICATOR_ENV' environmental variable is not defined. Modify ".
"your httpd.conf to include 'SetEnv PHABRICATOR_ENV <env>', where '<env>' ".
"is one of 'development', 'production', or a custom environment.");
}
if (!function_exists('mysql_connect')) {
phabricator_fatal_config_error(
"The PHP MySQL extension is not installed. This extension is required.");
}
if (!isset($_REQUEST['__path__'])) {
phabricator_fatal_config_error(
"__path__ is not set. Your rewrite rules are not configured correctly.");
}
if (get_magic_quotes_gpc()) {
phabricator_fatal_config_error(
"Your server is configured with PHP 'magic_quotes_gpc' enabled. This ".
"feature is 'highly discouraged' by PHP's developers and you must ".
"disable it to run Phabricator. Consult the PHP manual for instructions.");
}
register_shutdown_function('phabricator_shutdown');
require_once dirname(dirname(__FILE__)).'/conf/__init_conf__.php';
try {
setup_aphront_basics();
$conf = phabricator_read_config_file($env);
$conf['phabricator.env'] = $env;
phutil_require_module('phabricator', 'infrastructure/env');
PhabricatorEnv::setEnvConfig($conf);
phutil_require_module('phabricator', 'aphront/console/plugin/xhprof/api');
DarkConsoleXHProfPluginAPI::hookProfiler();
phutil_require_module('phabricator', 'aphront/console/plugin/errorlog/api');
PhutilErrorHandler::initialize();
} catch (Exception $ex) {
phabricator_fatal("[Initialization Exception] ".$ex->getMessage());
}
$tz = PhabricatorEnv::getEnvConfig('phabricator.timezone');
if ($tz) {
date_default_timezone_set($tz);
}
phutil_require_module('phabricator', 'aphront/console/plugin/errorlog/api');
phutil_require_module('phutil', 'error');
PhutilErrorHandler::setErrorListener(
array('DarkConsoleErrorLogPluginAPI', 'handleErrors'));
foreach (PhabricatorEnv::getEnvConfig('load-libraries') as $library) {
phutil_load_library($library);
}
if (PhabricatorEnv::getEnvConfig('phabricator.setup')) {
PhabricatorSetup::runSetup();
return;
}
$host = $_SERVER['HTTP_HOST'];
$path = $_REQUEST['__path__'];
switch ($host) {
default:
$config_key = 'aphront.default-application-configuration-class';
$config_class = PhabricatorEnv::getEnvConfig($config_key);
PhutilSymbolLoader::loadClass($config_class);
$application = newv($config_class, array());
break;
}
$application->setHost($host);
$application->setPath($path);
$application->willBuildRequest();
$request = $application->buildRequest();
$write_guard = new AphrontWriteGuard($request);
$application->setRequest($request);
list($controller, $uri_data) = $application->buildController();
try {
$response = $controller->willBeginExecution();
if (!$response) {
$controller->willProcessRequest($uri_data);
$response = $controller->processRequest();
}
} catch (AphrontRedirectException $ex) {
$response = id(new AphrontRedirectResponse())
->setURI($ex->getURI());
} catch (Exception $ex) {
$response = $application->handleException($ex);
}
try {
$response = $application->willSendResponse($response);
$response->setRequest($request);
$response_string = $response->buildResponseString();
} catch (Exception $ex) {
$write_guard->dispose();
phabricator_fatal('[Rendering Exception] '.$ex->getMessage());
}
$write_guard->dispose();
$code = $response->getHTTPResponseCode();
if ($code != 200) {
header("HTTP/1.0 {$code}");
}
$headers = $response->getCacheHeaders();
$headers = array_merge($headers, $response->getHeaders());
foreach ($headers as $header) {
list($header, $value) = $header;
header("{$header}: {$value}");
}
// TODO: This shouldn't be possible in a production-configured environment.
if (isset($_REQUEST['__profile__']) &&
($_REQUEST['__profile__'] == 'all')) {
$profile = DarkConsoleXHProfPluginAPI::stopProfiler();
$profile =
'<div style="text-align: center; background: #ff00ff; padding: 1em;
font-size: 24px; font-weight: bold;">'.
'<a href="/xhprof/profile/'.$profile.'/">'.
'&gt;&gt;&gt; View Profile &lt;&lt;&lt;'.
'</a>'.
'</div>';
if (strpos($response_string, '<body>') !== false) {
$response_string = str_replace(
'<body>',
'<body>'.$profile,
$response_string);
} else {
echo $profile;
}
}
echo $response_string;
/**
* @group aphront
*/
function setup_aphront_basics() {
$aphront_root = dirname(dirname(__FILE__));
$libraries_root = dirname($aphront_root);
$root = null;
if (!empty($_SERVER['PHUTIL_LIBRARY_ROOT'])) {
$root = $_SERVER['PHUTIL_LIBRARY_ROOT'];
}
ini_set('include_path', $libraries_root.':'.ini_get('include_path'));
@include_once $root.'libphutil/src/__phutil_library_init__.php';
if (!@constant('__LIBPHUTIL__')) {
echo "ERROR: Unable to load libphutil. Update your PHP 'include_path' to ".
"include the parent directory of libphutil/.\n";
exit(1);
}
// Load Phabricator itself using the absolute path, so we never end up doing
// anything surprising (loading index.php and libraries from different
// directories).
phutil_load_library($aphront_root.'/src');
phutil_load_library('arcanist/src');
}
function phabricator_fatal_config_error($msg) {
phabricator_fatal("CONFIG ERROR: ".$msg."\n");
die();
}
function phabricator_detect_insane_memory_limit() {
$memory_limit = ini_get('memory_limit');
$char_limit = 12;
if (strlen($memory_limit) <= $char_limit) {
return;
}
// colmdoyle ran into an issue on an Ubuntu box with Suhosin where his
// 'memory_limit' was set to:
//
// 3232323232323232323232323232323232323232323232323232323232323232M
//
// Not a typo. A wizard did it.
//
// Anyway, with this 'memory_limit', the machine would immediately fatal
// when executing the ini_set() later. I wasn't able to reproduce this on my
// EC2 Ubuntu + Suhosin box, but verified that it caused the problem on his
// machine and that setting it to a more sensible value fixed it. Since I
// have no idea how to actually trigger the issue, we look for a coarse
// approximation of it (a memory_limit setting more than 12 characters in
// length).
phabricator_fatal_config_error(
"Your PHP 'memory_limit' is set to something ridiculous ".
"(\"{$memory_limit}\"). Set it to a more reasonable value (it must be no ".
"more than {$char_limit} characters long).");
}
function phabricator_shutdown() {
$event = error_get_last();
if (!$event) {
return;
}
if ($event['type'] != E_ERROR) {
return;
}
$msg = ">>> UNRECOVERABLE FATAL ERROR <<<\n\n";
if ($event) {
// Even though we should be emitting this as text-plain, escape things just
// to be sure since we can't really be sure what the program state is when
// we get here.
$msg .= phutil_escape_html($event['message'])."\n\n";
$msg .= phutil_escape_html($event['file'].':'.$event['line']);
}
// flip dem tables
$msg .= "\n\n\n";
$msg .= "\xe2\x94\xbb\xe2\x94\x81\xe2\x94\xbb\x20\xef\xb8\xb5\x20\xc2\xaf".
"\x5c\x5f\x28\xe3\x83\x84\x29\x5f\x2f\xc2\xaf\x20\xef\xb8\xb5\x20".
"\xe2\x94\xbb\xe2\x94\x81\xe2\x94\xbb";
phabricator_fatal($msg);
}
function phabricator_fatal($msg) {
header(
'Content-Type: text/plain; charset=utf-8',
$replace = true,
$http_error = 500);
error_log($msg);
echo $msg;
exit(1);
}

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