mirror of
https://github.com/RSS-Bridge/rss-bridge.git
synced 2025-04-23 15:06:53 +00:00
99 lines
3.2 KiB
PHP
99 lines
3.2 KiB
PHP
<?php
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function getContents($url, $use_include_path = false, $context = null, $offset = 0, $maxlen = null
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) {
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$contextOptions = array(
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'http' => array(
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'user_agent' => ini_get('user_agent')
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)
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);
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if (defined('PROXY_URL') && !defined('NOPROXY')) {
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$contextOptions['http']['proxy'] = PROXY_URL;
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$contextOptions['http']['request_fulluri'] = true;
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if (is_null($context)) {
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$context = stream_context_create($contextOptions);
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} else {
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$prevContext = $context;
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if (!stream_context_set_option($context, $contextOptions)) {
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$context = $prevContext;
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}
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}
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}
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if (is_null($maxlen)) {
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$content = @file_get_contents($url, $use_include_path, $context, $offset);
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} else {
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$content = @file_get_contents($url, $use_include_path, $context, $offset, $maxlen);
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}
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if ($content === false) {
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debugMessage('Cant\'t download ' . $url);
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}
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// handle compressed data
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foreach ($http_response_header as $header) {
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if (stristr($header, 'content-encoding')) {
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switch (true) {
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case stristr($header, 'gzip'):
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$content = gzinflate(substr($content, 10, -8));
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break;
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case stristr($header, 'compress'):
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//TODO
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case stristr($header, 'deflate'):
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//TODO
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case stristr($header, 'brotli'):
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//TODO
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returnServerError($header . '=> Not implemented yet');
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break;
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case stristr($header, 'identity'):
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break;
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default:
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returnServerError($header . '=> Unknown compression');
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}
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}
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}
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return $content;
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}
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function getSimpleHTMLDOM($url, $use_include_path = false, $context = null, $offset = 0, $maxLen = null, $lowercase = true, $forceTagsClosed = true, $target_charset = DEFAULT_TARGET_CHARSET, $stripRN = true, $defaultBRText = DEFAULT_BR_TEXT, $defaultSpanText = DEFAULT_SPAN_TEXT
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) {
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$content = getContents($url, $use_include_path, $context, $offset, $maxLen);
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return str_get_html($content, $lowercase, $forceTagsClosed, $target_charset, $stripRN, $defaultBRText, $defaultSpanText);
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}
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/**
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* Maintain locally cached versions of pages to avoid multiple downloads.
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* @param url url to cache
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* @param duration duration of the cache file in seconds (default: 24h/86400s)
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* @return content of the file as string
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*/
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function getSimpleHTMLDOMCached($url, $duration = 86400, $use_include_path = false, $context = null, $offset = 0, $maxLen = null, $lowercase = true, $forceTagsClosed = true, $target_charset = DEFAULT_TARGET_CHARSET, $stripRN = true, $defaultBRText = DEFAULT_BR_TEXT, $defaultSpanText = DEFAULT_SPAN_TEXT
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) {
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debugMessage('Caching url ' . $url . ', duration ' . $duration);
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// Initialize cache
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$cache = Cache::create('FileCache');
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$cache->setPath(CACHE_DIR . '/pages');
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$cache->purgeCache(86400); // 24 hours (forced)
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$params = [$url];
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$cache->setParameters($params);
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// Determine if cached file is within duration
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$time = $cache->getTime();
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if ($time !== false
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&& (time() - $duration < $time)
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&& (!defined('DEBUG') || DEBUG !== true)) { // Contents within duration
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$content = $cache->loadData();
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} else { // Content not within duration
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$content = getContents($url, $use_include_path, $context, $offset, $maxLen);
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if ($content !== false) {
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$cache->saveData($content);
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}
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}
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return str_get_html($content, $lowercase, $forceTagsClosed, $target_charset, $stripRN, $defaultBRText, $defaultSpanText);
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}
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