forked from blallo/rss-bridge
f1fb95b257
- returnError, returnServerError, returnClientError ,debugMessage are moved to lib/error.php - getContents, getSimpleHTMLDOM, getSimpleHTMLDOMCached are moved to lib/contents.php Signed-off-by: Pierre Mazière <pierre.maziere@gmx.com>
142 lines
3.4 KiB
PHP
142 lines
3.4 KiB
PHP
<?php
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function getContents($url
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, $use_include_path = false
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, $context = null
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, $offset = 0
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, $maxlen = null
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){
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$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 ' . $url);
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// handle compressed data
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foreach($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
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, $use_include_path = false
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, $context = null
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, $offset = 0
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, $maxLen = null
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, $lowercase = true
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, $forceTagsClosed = true
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, $target_charset = DEFAULT_TARGET_CHARSET
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, $stripRN = true
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, $defaultBRText = DEFAULT_BR_TEXT
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, $defaultSpanText = DEFAULT_SPAN_TEXT
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){
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$content = getContents($url, $use_include_path, $context, $offset, $maxLen);
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return str_get_html($content
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, $lowercase
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, $forceTagsClosed
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, $target_charset
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, $stripRN
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, $defaultBRText
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, $defaultSpanText);
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}
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/**
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* Maintain locally cached versions of pages to avoid multiple downloads.
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* @param url url to cache
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* @param duration duration of the cache file in seconds (default: 24h/86400s)
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* @return content of the file as string
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*/
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function getSimpleHTMLDOMCached($url
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, $duration = 86400
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, $use_include_path = false
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, $context = null
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, $offset = 0
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, $maxLen = null
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, $lowercase = true
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, $forceTagsClosed = true
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, $target_charset = DEFAULT_TARGET_CHARSET
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, $stripRN = true
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, $defaultBRText = DEFAULT_BR_TEXT
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, $defaultSpanText = DEFAULT_SPAN_TEXT
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){
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debugMessage('Caching url ' . $url . ', duration ' . $duration);
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$filepath = __DIR__ . '/../cache/pages/' . sha1($url) . '.cache';
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debugMessage('Cache file ' . $filepath);
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if(file_exists($filepath) && filectime($filepath) < time() - $duration){
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unlink ($filepath);
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debugMessage('Cached file deleted: ' . $filepath);
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}
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if(file_exists($filepath)){
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debugMessage('Loading cached file ' . $filepath);
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touch($filepath);
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$content = file_get_contents($filepath);
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} else {
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debugMessage('Caching ' . $url . ' to ' . $filepath);
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$dir = substr($filepath, 0, strrpos($filepath, '/'));
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if(!is_dir($dir)){
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debugMessage('Creating directory ' . $dir);
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mkdir($dir, 0777, true);
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}
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$content = getContents($url, $use_include_path, $context, $offset, $maxLen);
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if($content !== false){
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file_put_contents($filepath, $content);
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}
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}
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return str_get_html($content
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, $lowercase
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, $forceTagsClosed
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, $target_charset
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, $stripRN
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, $defaultBRText
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, $defaultSpanText);
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}
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?>
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