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- <?php
- require_once __DIR__ . '/lib/RssBridge.php';
- define('PHP_VERSION_REQUIRED', '5.6.0');
- // Specify directory for cached files (using FileCache)
- define('CACHE_DIR', __DIR__ . '/cache');
- // Specify path for whitelist file
- define('WHITELIST_FILE', __DIR__ . '/whitelist.txt');
- Configuration::verifyInstallation();
- Configuration::loadConfiguration();
- Authentication::showPromptIfNeeded();
- date_default_timezone_set('UTC');
- error_reporting(0);
- /*
- Move the CLI arguments to the $_GET array, in order to be able to use
- rss-bridge from the command line
- */
- parse_str(implode('&', array_slice($argv, 1)), $cliArgs);
- $params = array_merge($_GET, $cliArgs);
- /*
- Create a file named 'DEBUG' for enabling debug mode.
- For further security, you may put whitelisted IP addresses in the file,
- one IP per line. Empty file allows anyone(!).
- Debugging allows displaying PHP error messages and bypasses the cache: this
- can allow a malicious client to retrieve data about your server and hammer
- a provider throught your rss-bridge instance.
- */
- if(file_exists('DEBUG')) {
- $debug_whitelist = trim(file_get_contents('DEBUG'));
- $debug_enabled = empty($debug_whitelist)
- || in_array($_SERVER['REMOTE_ADDR'], explode("\n", $debug_whitelist));
- if($debug_enabled) {
- ini_set('display_errors', '1');
- error_reporting(E_ALL);
- define('DEBUG', true);
- }
- }
- // FIXME : beta test UA spoofing, please report any blacklisting by PHP-fopen-unfriendly websites
- $userAgent = 'Mozilla/5.0(X11; Linux x86_64; rv:30.0)';
- $userAgent .= ' Gecko/20121202 Firefox/30.0(rss-bridge/0.1;';
- $userAgent .= '+https://github.com/RSS-Bridge/rss-bridge)';
- ini_set('user_agent', $userAgent);
- // default whitelist
- $whitelist_default = array(
- 'BandcampBridge',
- 'CryptomeBridge',
- 'DansTonChatBridge',
- 'DuckDuckGoBridge',
- 'FacebookBridge',
- 'FlickrExploreBridge',
- 'GooglePlusPostBridge',
- 'GoogleSearchBridge',
- 'IdenticaBridge',
- 'InstagramBridge',
- 'OpenClassroomsBridge',
- 'PinterestBridge',
- 'ScmbBridge',
- 'TwitterBridge',
- 'WikipediaBridge',
- 'YoutubeBridge');
- try {
- Bridge::setDir(__DIR__ . '/bridges/');
- Format::setDir(__DIR__ . '/formats/');
- Cache::setDir(__DIR__ . '/caches/');
- if(!file_exists(WHITELIST_FILE)) {
- $whitelist_selection = $whitelist_default;
- $whitelist_write = implode("\n", $whitelist_default);
- file_put_contents(WHITELIST_FILE, $whitelist_write);
- } else {
- $whitelist_file_content = file_get_contents(WHITELIST_FILE);
- if($whitelist_file_content != "*\n") {
- $whitelist_selection = explode("\n", $whitelist_file_content);
- } else {
- $whitelist_selection = Bridge::listBridges();
- }
- // Prepare for case-insensitive match
- $whitelist_selection = array_map('strtolower', $whitelist_selection);
- }
- $showInactive = filter_input(INPUT_GET, 'show_inactive', FILTER_VALIDATE_BOOLEAN);
- $action = array_key_exists('action', $params) ? $params['action'] : null;
- $bridge = array_key_exists('bridge', $params) ? $params['bridge'] : null;
- if($action === 'display' && !empty($bridge)) {
- // DEPRECATED: 'nameBridge' scheme is replaced by 'name' in bridge parameter values
- // this is to keep compatibility until futher complete removal
- if(($pos = strpos($bridge, 'Bridge')) === (strlen($bridge) - strlen('Bridge'))) {
- $bridge = substr($bridge, 0, $pos);
- }
- $format = $params['format']
- or returnClientError('You must specify a format!');
- // DEPRECATED: 'nameFormat' scheme is replaced by 'name' in format parameter values
- // this is to keep compatibility until futher complete removal
- if(($pos = strpos($format, 'Format')) === (strlen($format) - strlen('Format'))) {
- $format = substr($format, 0, $pos);
- }
- // whitelist control
- if(!Bridge::isWhitelisted($whitelist_selection, strtolower($bridge))) {
- throw new \HttpException('This bridge is not whitelisted', 401);
- die;
- }
- // Data retrieval
- $bridge = Bridge::create($bridge);
- $noproxy = array_key_exists('_noproxy', $params) && filter_var($params['_noproxy'], FILTER_VALIDATE_BOOLEAN);
- if(defined('PROXY_URL') && PROXY_BYBRIDGE && $noproxy) {
- define('NOPROXY', true);
- }
- // Custom cache timeout
- $cache_timeout = -1;
- if(array_key_exists('_cache_timeout', $params)) {
- if(!CUSTOM_CACHE_TIMEOUT) {
- throw new \HttpException('This server doesn\'t support "_cache_timeout"!');
- }
- $cache_timeout = filter_var($params['_cache_timeout'], FILTER_VALIDATE_INT);
- }
- // Initialize cache
- $cache = Cache::create('FileCache');
- $cache->setPath(CACHE_DIR);
- $cache->purgeCache(86400); // 24 hours
- $cache->setParameters($params);
- unset($params['action']);
- unset($params['bridge']);
- unset($params['format']);
- unset($params['_noproxy']);
- unset($params['_cache_timeout']);
- // Load cache & data
- try {
- $bridge->setCache($cache);
- $bridge->setCacheTimeout($cache_timeout);
- $bridge->setDatas($params);
- } catch(Error $e) {
- http_response_code($e->getCode());
- header('Content-Type: text/html');
- die(buildBridgeException($e, $bridge));
- } catch(Exception $e) {
- http_response_code($e->getCode());
- header('Content-Type: text/html');
- die(buildBridgeException($e, $bridge));
- }
- // Data transformation
- try {
- $format = Format::create($format);
- $format->setItems($bridge->getItems());
- $format->setExtraInfos($bridge->getExtraInfos());
- $format->display();
- } catch(Error $e) {
- http_response_code($e->getCode());
- header('Content-Type: text/html');
- die(buildTransformException($e, $bridge));
- } catch(Exception $e) {
- http_response_code($e->getCode());
- header('Content-Type: text/html');
- die(buildBridgeException($e, $bridge));
- }
- } else {
- echo BridgeList::create($whitelist_selection, $showInactive);
- }
- } catch(HttpException $e) {
- http_response_code($e->getCode());
- header('Content-Type: text/plain');
- die($e->getMessage());
- } catch(\Exception $e) {
- die($e->getMessage());
- }
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