mirror of
https://github.com/RSS-Bridge/rss-bridge.git
synced 2024-11-27 12:01:09 +03:00
154 lines
3.8 KiB
PHP
154 lines
3.8 KiB
PHP
<?php
|
|
function getContents($url, $header = array(), $opts = array()){
|
|
$ch = curl_init($url);
|
|
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
|
|
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
|
|
|
|
if(is_array($header) && count($header) !== 0)
|
|
curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
|
|
|
|
curl_setopt($ch, CURLOPT_USERAGENT, ini_get('user_agent'));
|
|
curl_setopt($ch, CURLOPT_ENCODING, '');
|
|
curl_setopt($ch, CURLOPT_PROTOCOLS, CURLPROTO_HTTP | CURLPROTO_HTTPS);
|
|
|
|
if(is_array($opts)) {
|
|
foreach($opts as $key => $value) {
|
|
curl_setopt($ch, $key, $value);
|
|
}
|
|
}
|
|
|
|
if(defined('PROXY_URL') && !defined('NOPROXY')) {
|
|
curl_setopt($ch, CURLOPT_PROXY, PROXY_URL);
|
|
}
|
|
|
|
// We always want the resonse header as part of the data!
|
|
curl_setopt($ch, CURLOPT_HEADER, true);
|
|
|
|
$data = curl_exec($ch);
|
|
$curlError = curl_error($ch);
|
|
$curlErrno = curl_errno($ch);
|
|
|
|
if($data === false)
|
|
debugMessage('Cant\'t download ' . $url . ' cUrl error: ' . $curlError . ' (' . $curlErrno . ')');
|
|
|
|
$headerSize = curl_getinfo($ch, CURLINFO_HEADER_SIZE);
|
|
$header = substr($data, 0, $headerSize);
|
|
$headers = parseResponseHeader($header);
|
|
$finalHeader = end($headers);
|
|
|
|
if(array_key_exists('http_code', $finalHeader)
|
|
&& strpos($finalHeader['http_code'], '200') === false
|
|
&& array_key_exists('Server', $finalHeader)
|
|
&& strpos($finalHeader['Server'], 'cloudflare') !== false) {
|
|
returnServerError(<<< EOD
|
|
The server responded with a Cloudflare challenge, which is not supported by RSS-Bridge!<br>
|
|
If this error persists longer than a week, please consider opening an issue on GitHub!
|
|
EOD
|
|
);
|
|
}
|
|
|
|
curl_close($ch);
|
|
return substr($data, $headerSize);
|
|
}
|
|
|
|
function getSimpleHTMLDOM($url,
|
|
$header = array(),
|
|
$opts = array(),
|
|
$lowercase = true,
|
|
$forceTagsClosed = true,
|
|
$target_charset = DEFAULT_TARGET_CHARSET,
|
|
$stripRN = true,
|
|
$defaultBRText = DEFAULT_BR_TEXT,
|
|
$defaultSpanText = DEFAULT_SPAN_TEXT){
|
|
$content = getContents($url, $header, $opts);
|
|
return str_get_html($content,
|
|
$lowercase,
|
|
$forceTagsClosed,
|
|
$target_charset,
|
|
$stripRN,
|
|
$defaultBRText,
|
|
$defaultSpanText);
|
|
}
|
|
|
|
/**
|
|
* Maintain locally cached versions of pages to avoid multiple downloads.
|
|
* @param url url to cache
|
|
* @param duration duration of the cache file in seconds (default: 24h/86400s)
|
|
* @return content of the file as string
|
|
*/
|
|
function getSimpleHTMLDOMCached($url,
|
|
$duration = 86400,
|
|
$header = array(),
|
|
$opts = array(),
|
|
$lowercase = true,
|
|
$forceTagsClosed = true,
|
|
$target_charset = DEFAULT_TARGET_CHARSET,
|
|
$stripRN = true,
|
|
$defaultBRText = DEFAULT_BR_TEXT,
|
|
$defaultSpanText = DEFAULT_SPAN_TEXT){
|
|
debugMessage('Caching url ' . $url . ', duration ' . $duration);
|
|
|
|
// Initialize cache
|
|
$cache = Cache::create('FileCache');
|
|
$cache->setPath(CACHE_DIR . '/pages');
|
|
$cache->purgeCache(86400); // 24 hours (forced)
|
|
|
|
$params = [$url];
|
|
$cache->setParameters($params);
|
|
|
|
// Determine if cached file is within duration
|
|
$time = $cache->getTime();
|
|
if($time !== false
|
|
&& (time() - $duration < $time)
|
|
&& (!defined('DEBUG') || DEBUG !== true)) { // Contents within duration
|
|
$content = $cache->loadData();
|
|
} else { // Content not within duration
|
|
$content = getContents($url, $header, $opts);
|
|
if($content !== false) {
|
|
$cache->saveData($content);
|
|
}
|
|
}
|
|
|
|
return str_get_html($content,
|
|
$lowercase,
|
|
$forceTagsClosed,
|
|
$target_charset,
|
|
$stripRN,
|
|
$defaultBRText,
|
|
$defaultSpanText);
|
|
}
|
|
|
|
/**
|
|
* Parses the provided response header into an associative array
|
|
*
|
|
* Based on https://stackoverflow.com/a/18682872
|
|
*/
|
|
function parseResponseHeader($header) {
|
|
|
|
$headers = array();
|
|
$requests = explode("\r\n\r\n", trim($header));
|
|
|
|
foreach ($requests as $request) {
|
|
|
|
$header = array();
|
|
|
|
foreach (explode("\r\n", $request) as $i => $line) {
|
|
|
|
if($i === 0) {
|
|
$header['http_code'] = $line;
|
|
} else {
|
|
|
|
list ($key, $value) = explode(': ', $line);
|
|
$header[$key] = $value;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
$headers[] = $header;
|
|
|
|
}
|
|
|
|
return $headers;
|
|
|
|
}
|