mirror of
https://github.com/RSS-Bridge/rss-bridge.git
synced 2025-08-08 01:26:31 +02:00
core: Implement action factory (#1002)
This commit is contained in:
LogMANOriginal
GitHub
234
actions/DisplayAction.php
Normal file
234
actions/DisplayAction.php
Normal file
@@ -0,0 +1,234 @@
|
||||
<?php
|
||||
/**
|
||||
* This file is part of RSS-Bridge, a PHP project capable of generating RSS and
|
||||
* Atom feeds for websites that don't have one.
|
||||
*
|
||||
* For the full license information, please view the UNLICENSE file distributed
|
||||
* with this source code.
|
||||
*
|
||||
* @package Core
|
||||
* @license http://unlicense.org/ UNLICENSE
|
||||
* @link https://github.com/rss-bridge/rss-bridge
|
||||
*/
|
||||
|
||||
class DisplayAction extends ActionAbstract {
|
||||
public function execute() {
|
||||
$bridge = array_key_exists('bridge', $this->userData) ? $this->userData['bridge'] : null;
|
||||
|
||||
$format = $this->userData['format']
|
||||
or returnClientError('You must specify a format!');
|
||||
|
||||
// DEPRECATED: 'nameFormat' scheme is replaced by 'name' in format parameter values
|
||||
// this is to keep compatibility until futher complete removal
|
||||
if(($pos = strpos($format, 'Format')) === (strlen($format) - strlen('Format'))) {
|
||||
$format = substr($format, 0, $pos);
|
||||
}
|
||||
|
||||
// whitelist control
|
||||
if(!Bridge::isWhitelisted($bridge)) {
|
||||
throw new \Exception('This bridge is not whitelisted', 401);
|
||||
die;
|
||||
}
|
||||
|
||||
// Data retrieval
|
||||
$bridge = Bridge::create($bridge);
|
||||
|
||||
$noproxy = array_key_exists('_noproxy', $this->userData)
|
||||
&& filter_var($this->userData['_noproxy'], FILTER_VALIDATE_BOOLEAN);
|
||||
|
||||
if(defined('PROXY_URL') && PROXY_BYBRIDGE && $noproxy) {
|
||||
define('NOPROXY', true);
|
||||
}
|
||||
|
||||
// Cache timeout
|
||||
$cache_timeout = -1;
|
||||
if(array_key_exists('_cache_timeout', $this->userData)) {
|
||||
|
||||
if(!CUSTOM_CACHE_TIMEOUT) {
|
||||
unset($this->userData['_cache_timeout']);
|
||||
$uri = parse_url($_SERVER['REQUEST_URI'], PHP_URL_PATH) . '?' . http_build_query($this->userData);
|
||||
header('Location: ' . $uri, true, 301);
|
||||
die();
|
||||
}
|
||||
|
||||
$cache_timeout = filter_var($this->userData['_cache_timeout'], FILTER_VALIDATE_INT);
|
||||
|
||||
} else {
|
||||
$cache_timeout = $bridge->getCacheTimeout();
|
||||
}
|
||||
|
||||
// Remove parameters that don't concern bridges
|
||||
$bridge_params = array_diff_key(
|
||||
$this->userData,
|
||||
array_fill_keys(
|
||||
array(
|
||||
'action',
|
||||
'bridge',
|
||||
'format',
|
||||
'_noproxy',
|
||||
'_cache_timeout',
|
||||
'_error_time'
|
||||
), '')
|
||||
);
|
||||
|
||||
// Remove parameters that don't concern caches
|
||||
$cache_params = array_diff_key(
|
||||
$this->userData,
|
||||
array_fill_keys(
|
||||
array(
|
||||
'action',
|
||||
'format',
|
||||
'_noproxy',
|
||||
'_cache_timeout',
|
||||
'_error_time'
|
||||
), '')
|
||||
);
|
||||
|
||||
// Initialize cache
|
||||
$cache = Cache::create('FileCache');
|
||||
$cache->setPath(PATH_CACHE);
|
||||
$cache->purgeCache(86400); // 24 hours
|
||||
$cache->setParameters($cache_params);
|
||||
|
||||
$items = array();
|
||||
$infos = array();
|
||||
$mtime = $cache->getTime();
|
||||
|
||||
if($mtime !== false
|
||||
&& (time() - $cache_timeout < $mtime)
|
||||
&& !Debug::isEnabled()) { // Load cached data
|
||||
|
||||
// Send "Not Modified" response if client supports it
|
||||
// Implementation based on https://stackoverflow.com/a/10847262
|
||||
if(isset($_SERVER['HTTP_IF_MODIFIED_SINCE'])) {
|
||||
$stime = strtotime($_SERVER['HTTP_IF_MODIFIED_SINCE']);
|
||||
|
||||
if($mtime <= $stime) { // Cached data is older or same
|
||||
header('Last-Modified: ' . gmdate('D, d M Y H:i:s ', $mtime) . 'GMT', true, 304);
|
||||
die();
|
||||
}
|
||||
}
|
||||
|
||||
$cached = $cache->loadData();
|
||||
|
||||
if(isset($cached['items']) && isset($cached['extraInfos'])) {
|
||||
foreach($cached['items'] as $item) {
|
||||
$items[] = new \FeedItem($item);
|
||||
}
|
||||
|
||||
$infos = $cached['extraInfos'];
|
||||
}
|
||||
|
||||
} else { // Collect new data
|
||||
|
||||
try {
|
||||
$bridge->setDatas($bridge_params);
|
||||
$bridge->collectData();
|
||||
|
||||
$items = $bridge->getItems();
|
||||
|
||||
// Transform "legacy" items to FeedItems if necessary.
|
||||
// Remove this code when support for "legacy" items ends!
|
||||
if(isset($items[0]) && is_array($items[0])) {
|
||||
$feedItems = array();
|
||||
|
||||
foreach($items as $item) {
|
||||
$feedItems[] = new \FeedItem($item);
|
||||
}
|
||||
|
||||
$items = $feedItems;
|
||||
}
|
||||
|
||||
$infos = array(
|
||||
'name' => $bridge->getName(),
|
||||
'uri' => $bridge->getURI(),
|
||||
'icon' => $bridge->getIcon()
|
||||
);
|
||||
} catch(Error $e) {
|
||||
error_log($e);
|
||||
|
||||
$item = new \FeedItem();
|
||||
|
||||
// Create "new" error message every 24 hours
|
||||
$this->userData['_error_time'] = urlencode((int)(time() / 86400));
|
||||
|
||||
// Error 0 is a special case (i.e. "trying to get property of non-object")
|
||||
if($e->getCode() === 0) {
|
||||
$item->setTitle(
|
||||
'Bridge encountered an unexpected situation! ('
|
||||
. $this->userData['_error_time']
|
||||
. ')'
|
||||
);
|
||||
} else {
|
||||
$item->setTitle(
|
||||
'Bridge returned error '
|
||||
. $e->getCode()
|
||||
. '! ('
|
||||
. $this->userData['_error_time']
|
||||
. ')'
|
||||
);
|
||||
}
|
||||
|
||||
$item->setURI(
|
||||
(isset($_SERVER['REQUEST_URI']) ? parse_url($_SERVER['REQUEST_URI'], PHP_URL_PATH) : '')
|
||||
. '?'
|
||||
. http_build_query($this->userData)
|
||||
);
|
||||
|
||||
$item->setTimestamp(time());
|
||||
$item->setContent(buildBridgeException($e, $bridge));
|
||||
|
||||
$items[] = $item;
|
||||
} catch(Exception $e) {
|
||||
error_log($e);
|
||||
|
||||
$item = new \FeedItem();
|
||||
|
||||
// Create "new" error message every 24 hours
|
||||
$this->userData['_error_time'] = urlencode((int)(time() / 86400));
|
||||
|
||||
$item->setURI(
|
||||
(isset($_SERVER['REQUEST_URI']) ? parse_url($_SERVER['REQUEST_URI'], PHP_URL_PATH) : '')
|
||||
. '?'
|
||||
. http_build_query($this->userData)
|
||||
);
|
||||
|
||||
$item->setTitle(
|
||||
'Bridge returned error '
|
||||
. $e->getCode()
|
||||
. '! ('
|
||||
. $this->userData['_error_time']
|
||||
. ')'
|
||||
);
|
||||
$item->setTimestamp(time());
|
||||
$item->setContent(buildBridgeException($e, $bridge));
|
||||
|
||||
$items[] = $item;
|
||||
}
|
||||
|
||||
// Store data in cache
|
||||
$cache->saveData(array(
|
||||
'items' => array_map(function($i){ return $i->toArray(); }, $items),
|
||||
'extraInfos' => $infos
|
||||
));
|
||||
|
||||
}
|
||||
|
||||
// Data transformation
|
||||
try {
|
||||
$format = Format::create($format);
|
||||
$format->setItems($items);
|
||||
$format->setExtraInfos($infos);
|
||||
$format->setLastModified($cache->getTime());
|
||||
$format->display();
|
||||
} catch(Error $e) {
|
||||
error_log($e);
|
||||
header('Content-Type: text/html', true, $e->getCode());
|
||||
die(buildTransformException($e, $bridge));
|
||||
} catch(Exception $e) {
|
||||
error_log($e);
|
||||
header('Content-Type: text/html', true, $e->getCode());
|
||||
die(buildTransformException($e, $bridge));
|
||||
}
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user