X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=include%2Fnetwork.php;h=64b6d07c6c623076ce444666b90fe924e0c03295;hb=98945eb6fa4e9d9becbeebf41648ead49e32d4da;hp=d0217e2a084fb45019788a7f49f6c89d991bc11d;hpb=3b11436b02cf1e6aa080f69d87438d4b079f96a6;p=friendica.git diff --git a/include/network.php b/include/network.php index d0217e2a08..b0e71fab7f 100644 --- a/include/network.php +++ b/include/network.php @@ -1,12 +1,31 @@ supply Accept: header with 'accept_content' as the value - * * \b timeout => int seconds, default system config value or 60 seconds - * * \b http_auth => username:password - * * \b novalidate => do not validate SSL certs, default is to validate using our CA list - * * \b nobody => only return the header - * * \b cookiejar => path to cookie jar file + * 'accept_content' => supply Accept: header with 'accept_content' as the value + * 'timeout' => int Timeout in seconds, default system config value or 60 seconds + * 'http_auth' => username:password + * 'novalidate' => do not validate SSL certs, default is to validate using our CA list + * 'nobody' => only return the header + * 'cookiejar' => path to cookie jar file * * @return array an assoziative array with: - * * \e int \b return_code => HTTP return code or 0 if timeout or failure - * * \e boolean \b success => boolean true (if HTTP 2xx result) or false - * * \e string \b header => HTTP headers - * * \e string \b body => fetched content + * int 'return_code' => HTTP return code or 0 if timeout or failure + * boolean 'success' => boolean true (if HTTP 2xx result) or false + * string 'redirect_url' => in case of redirect, content was finally retrieved from this URL + * string 'header' => HTTP headers + * string 'body' => fetched content */ function z_fetch_url($url,$binary = false, &$redirects = 0, $opts=array()) { @@ -65,7 +82,7 @@ function z_fetch_url($url,$binary = false, &$redirects = 0, $opts=array()) { curl_setopt($ch, CURLOPT_COOKIEFILE, $opts["cookiejar"]); } -// These settings aren't needed. We're following the location already. +// These settings aren't needed. We're following the location already. // @curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true); // @curl_setopt($ch, CURLOPT_MAXREDIRS, 5); @@ -78,7 +95,10 @@ function z_fetch_url($url,$binary = false, &$redirects = 0, $opts=array()) { @curl_setopt($ch, CURLOPT_RETURNTRANSFER,true); @curl_setopt($ch, CURLOPT_USERAGENT, $a->get_useragent()); - + $range = intval(Config::get('system', 'curl_range_bytes', 0)); + if ($range > 0) { + @curl_setopt($ch, CURLOPT_RANGE, '0-'.$range); + } if(x($opts,'headers')){ @curl_setopt($ch, CURLOPT_HTTPHEADER, $opts['headers']); @@ -92,12 +112,15 @@ function z_fetch_url($url,$binary = false, &$redirects = 0, $opts=array()) { $curl_time = intval(get_config('system','curl_timeout')); @curl_setopt($ch, CURLOPT_TIMEOUT, (($curl_time !== false) ? $curl_time : 60)); } + // by default we will allow self-signed certs // but you can override this $check_cert = get_config('system','verifyssl'); @curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, (($check_cert) ? true : false)); - @curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, (($check_cert) ? 2 : false)); + if ($check_cert) { + @curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2); + } $prx = get_config('system','proxy'); if(strlen($prx)) { @@ -116,6 +139,11 @@ function z_fetch_url($url,$binary = false, &$redirects = 0, $opts=array()) { // if it throws any errors. $s = @curl_exec($ch); + if (curl_errno($ch) !== CURLE_OK) { + logger('fetch_url error fetching '.$url.': '.curl_error($ch), LOGGER_NORMAL); + } + + $ret['errno'] = curl_errno($ch); $base = $s; $curl_info = @curl_getinfo($ch); @@ -133,6 +161,10 @@ function z_fetch_url($url,$binary = false, &$redirects = 0, $opts=array()) { $base = substr($base,strlen($chunk)); } + $a->set_curl_code($http_code); + $a->set_curl_content_type($curl_info['content_type']); + $a->set_curl_headers($header); + if($http_code == 301 || $http_code == 302 || $http_code == 303 || $http_code == 307) { $new_location_info = @parse_url($curl_info["redirect_url"]); $old_location_info = @parse_url($curl_info["url"]); @@ -160,13 +192,13 @@ function z_fetch_url($url,$binary = false, &$redirects = 0, $opts=array()) { $a->set_curl_content_type($curl_info['content_type']); $body = substr($s,strlen($header)); - $a->set_curl_headers($header); $rc = intval($http_code); $ret['return_code'] = $rc; $ret['success'] = (($rc >= 200 && $rc <= 299) ? true : false); + $ret['redirect_url'] = $url; if(! $ret['success']) { $ret['error'] = curl_error($ch); $ret['debug'] = $curl_info; @@ -184,11 +216,21 @@ function z_fetch_url($url,$binary = false, &$redirects = 0, $opts=array()) { return($ret); -}} +} // post request to $url. $params is an array of post variables. -if(! function_exists('post_url')) { +/** + * @brief Post request to $url + * + * @param string $url URL to post + * @param mixed $params + * @param string $headers HTTP headers + * @param integer $redirects Recursion counter for internal use - default = 0 + * @param integer $timeout The timeout in seconds, default system config value or 60 seconds + * + * @return string The content + */ function post_url($url,$params, $headers = null, &$redirects = 0, $timeout = 0) { $stamp1 = microtime(true); @@ -227,7 +269,9 @@ function post_url($url,$params, $headers = null, &$redirects = 0, $timeout = 0) $check_cert = get_config('system','verifyssl'); curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, (($check_cert) ? true : false)); - curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, (($check_cert) ? 2 : false)); + if ($check_cert) { + @curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2); + } $prx = get_config('system','proxy'); if(strlen($prx)) { curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1); @@ -286,13 +330,12 @@ function post_url($url,$params, $headers = null, &$redirects = 0, $timeout = 0) logger("post_url: end ".$url, LOGGER_DATA); return($body); -}} +} // Generic XML return // Outputs a basic dfrn XML status structure to STDOUT, with a variable // of $st and an optional text of $message and terminates the current process. -if(! function_exists('xml_status')) { function xml_status($st, $message = '') { $xml_message = ((strlen($message)) ? "\t" . xmlify($message) . "\r\n" : ''); @@ -304,12 +347,27 @@ function xml_status($st, $message = '') { echo ''."\r\n"; echo "\r\n\t$st\r\n$xml_message\r\n"; killme(); -}} +} +/** + * @brief Send HTTP status header and exit. + * + * @param integer $val HTTP status result value + * @param array $description optional message + * 'title' => header title + * 'description' => optional message + */ -if(! function_exists('http_status_exit')) { +/** + * @brief Send HTTP status header and exit. + * + * @param integer $val HTTP status result value + * @param array $description optional message + * 'title' => header title + * 'description' => optional message + */ function http_status_exit($val, $description = array()) { - $err = ''; + $err = ''; if($val >= 400) { $err = 'Error'; if (!isset($description["title"])) @@ -329,398 +387,44 @@ function http_status_exit($val, $description = array()) { killme(); -}} - - -// convert an XML document to a normalised, case-corrected array -// used by webfinger - -if(! function_exists('convert_xml_element_to_array')) { -function convert_xml_element_to_array($xml_element, &$recursion_depth=0) { - - // If we're getting too deep, bail out - if ($recursion_depth > 512) { - return(null); - } - - if (!is_string($xml_element) && - !is_array($xml_element) && - (get_class($xml_element) == 'SimpleXMLElement')) { - $xml_element_copy = $xml_element; - $xml_element = get_object_vars($xml_element); - } - - if (is_array($xml_element)) { - $result_array = array(); - if (count($xml_element) <= 0) { - return (trim(strval($xml_element_copy))); - } - - foreach($xml_element as $key=>$value) { - - $recursion_depth++; - $result_array[strtolower($key)] = - convert_xml_element_to_array($value, $recursion_depth); - $recursion_depth--; - } - if ($recursion_depth == 0) { - $temp_array = $result_array; - $result_array = array( - strtolower($xml_element_copy->getName()) => $temp_array, - ); - } - - return ($result_array); - - } else { - return (trim(strval($xml_element))); - } -}} - -// Given an email style address, perform webfinger lookup and -// return the resulting DFRN profile URL, or if no DFRN profile URL -// is located, returns an OStatus subscription template (prefixed -// with the string 'stat:' to identify it as on OStatus template). -// If this isn't an email style address just return $s. -// Return an empty string if email-style addresses but webfinger fails, -// or if the resultant personal XRD doesn't contain a supported -// subscription/friend-request attribute. - -// amended 7/9/2011 to return an hcard which could save potentially loading -// a lengthy content page to scrape dfrn attributes - -if(! function_exists('webfinger_dfrn')) { -function webfinger_dfrn($s,&$hcard) { - if(! strstr($s,'@')) { - return $s; - } - $profile_link = ''; - - $links = webfinger($s); - logger('webfinger_dfrn: ' . $s . ':' . print_r($links,true), LOGGER_DATA); - if(count($links)) { - foreach($links as $link) { - if($link['@attributes']['rel'] === NAMESPACE_DFRN) - $profile_link = $link['@attributes']['href']; - if($link['@attributes']['rel'] === NAMESPACE_OSTATUSSUB) - $profile_link = 'stat:' . $link['@attributes']['template']; - if($link['@attributes']['rel'] === 'http://microformats.org/profile/hcard') - $hcard = $link['@attributes']['href']; - } - } - return $profile_link; -}} - -// Given an email style address, perform webfinger lookup and -// return the array of link attributes from the personal XRD file. -// On error/failure return an empty array. - - -if(! function_exists('webfinger')) { -function webfinger($s, $debug = false) { - $host = ''; - if(strstr($s,'@')) { - $host = substr($s,strpos($s,'@') + 1); - } - if(strlen($host)) { - $tpl = fetch_lrdd_template($host); - logger('webfinger: lrdd template: ' . $tpl); - if(strlen($tpl)) { - $pxrd = str_replace('{uri}', urlencode('acct:' . $s), $tpl); - logger('webfinger: pxrd: ' . $pxrd); - $links = fetch_xrd_links($pxrd); - if(! count($links)) { - // try with double slashes - $pxrd = str_replace('{uri}', urlencode('acct://' . $s), $tpl); - logger('webfinger: pxrd: ' . $pxrd); - $links = fetch_xrd_links($pxrd); - } - return $links; - } - } - return array(); -}} - -if(! function_exists('lrdd')) { -function lrdd($uri, $debug = false) { - - $a = get_app(); - - // default priority is host priority, host-meta first - - $priority = 'host'; - - // All we have is an email address. Resource-priority is irrelevant - // because our URI isn't directly resolvable. - - if(strstr($uri,'@')) { - return(webfinger($uri)); - } - - // get the host meta file - - $host = @parse_url($uri); - - if($host) { - $url = ((x($host,'scheme')) ? $host['scheme'] : 'http') . '://'; - $url .= $host['host'] . '/.well-known/host-meta' ; - } - else - return array(); - - logger('lrdd: constructed url: ' . $url); - - $xml = fetch_url($url); - - $headers = $a->get_curl_headers(); - - if (! $xml) - return array(); - - logger('lrdd: host_meta: ' . $xml, LOGGER_DATA); - - if(! stristr($xml,'].*)>.*rel\=[\'\"]lrdd[\'\"]/',$line,$matches)) { - return(fetch_xrd_links($matches[1])); - break; - } - } - } - } - - - // priority 'resource' - - - $html = fetch_url($uri); - $headers = $a->get_curl_headers(); - logger('lrdd: headers=' . $headers, LOGGER_DEBUG); - - // don't try and parse raw xml as html - if(! strstr($html,'getElementsByTagName('link'); - foreach($items as $item) { - $x = $item->getAttribute('rel'); - if($x == "lrdd") { - $pagelink = $item->getAttribute('href'); - break; - } - } - } - } - - if(isset($pagelink)) - return(fetch_xrd_links($pagelink)); - - // next look in HTTP headers - - $lines = explode("\n",$headers); - if(count($lines)) { - foreach($lines as $line) { - // TODO alter the following regex to support multiple relations (space separated) - if((stristr($line,'link:')) && preg_match('/<([^>].*)>.*rel\=[\'\"]lrdd[\'\"]/',$line,$matches)) { - $pagelink = $matches[1]; - break; - } - // don't try and run feeds through the html5 parser - if(stristr($line,'content-type:') && ((stristr($line,'application/atom+xml')) || (stristr($line,'application/rss+xml')))) - return array(); - if(stristr($html,''),array('href="','"/>'),$xml); - - $h = parse_xml_string($xml); - if(! $h) - return array(); - - $arr = convert_xml_element_to_array($h); - - $links = array(); - - if(isset($arr['xrd']['link'])) { - $link = $arr['xrd']['link']; - if(! isset($link[0])) - $links = array($link); - else - $links = $link; - } - if(isset($arr['xrd']['alias'])) { - $alias = $arr['xrd']['alias']; - if(! isset($alias[0])) - $aliases = array($alias); - else - $aliases = $alias; - if(is_array($aliases) && count($aliases)) { - foreach($aliases as $alias) { - $links[]['@attributes'] = array('rel' => 'alias' , 'href' => $alias); - } - } - } - - logger('fetch_xrd_links: ' . print_r($links,true), LOGGER_DATA); - - return $links; - -}} - - -// Take a URL from the wild, prepend http:// if necessary -// and check DNS to see if it's real (or check if is a valid IP address) -// return true if it's OK, false if something is wrong with it +} -if(! function_exists('validate_url')) { +/** + * @brief Check URL to se if ts's real + * + * Take a URL from the wild, prepend http:// if necessary + * and check DNS to see if it's real (or check if is a valid IP address) + * + * @param string $url The URL to be validated + * @return boolean True if it's a valid URL, fals if something wrong with it + */ function validate_url(&$url) { - if(get_config('system','disable_url_validation')) return true; + // no naked subdomains (allow localhost for tests) if(strpos($url,'.') === false && strpos($url,'/localhost/') === false) return false; + if(substr($url,0,4) != 'http') $url = 'http://' . $url; + + /// @TODO Really supress function outcomes? Why not find them + debug them? $h = @parse_url($url); - if(($h) && (dns_get_record($h['host'], DNS_A + DNS_CNAME + DNS_PTR) || filter_var($h['host'], FILTER_VALIDATE_IP) )) { + if((is_array($h)) && (dns_get_record($h['host'], DNS_A + DNS_CNAME + DNS_PTR) || filter_var($h['host'], FILTER_VALIDATE_IP) )) { return true; } - return false; -}} -// checks that email is an actual resolvable internet address + return false; +} -if(! function_exists('validate_email')) { +/** + * @brief Checks that email is an actual resolvable internet address + * + * @param string $addr The email address + * @return boolean True if it's a valid email address, false if it's not + */ function validate_email($addr) { if(get_config('system','disable_email_validation')) @@ -734,14 +438,17 @@ function validate_email($addr) { return true; } return false; -}} - -// Check $url against our list of allowed sites, -// wildcards allowed. If allowed_sites is unset return true; -// If url is allowed, return true. -// otherwise, return false +} -if(! function_exists('allowed_url')) { +/** + * @brief Check if URL is allowed + * + * Check $url against our list of allowed sites, + * wildcards allowed. If allowed_sites is unset return true; + * + * @param string $url URL which get tested + * @return boolean True if url is allowed otherwise return false + */ function allowed_url($url) { $h = @parse_url($url); @@ -776,14 +483,17 @@ function allowed_url($url) { } } return $found; -}} - -// check if email address is allowed to register here. -// Compare against our list (wildcards allowed). -// Returns false if not allowed, true if allowed or if -// allowed list is not configured. +} -if(! function_exists('allowed_email')) { +/** + * @brief Check if email address is allowed to register here. + * + * Compare against our list (wildcards allowed). + * + * @param type $email + * @return boolean False if not allowed, true if allowed + * or if allowed list is not configured + */ function allowed_email($email) { @@ -810,14 +520,10 @@ function allowed_email($email) { } } return $found; -}} - +} -if(! function_exists('avatar_img')) { function avatar_img($email) { - $a = get_app(); - $avatar['size'] = 175; $avatar['email'] = $email; $avatar['url'] = ''; @@ -825,16 +531,17 @@ function avatar_img($email) { call_hooks('avatar_lookup', $avatar); - if(! $avatar['success']) - $avatar['url'] = $a->get_baseurl() . '/images/person-175.jpg'; + if (! $avatar['success']) { + $avatar['url'] = App::get_baseurl() . '/images/person-175.jpg'; + } logger('Avatar: ' . $avatar['email'] . ' ' . $avatar['url'], LOGGER_DEBUG); return $avatar['url']; -}} +} -if(! function_exists('parse_xml_string')) { function parse_xml_string($s,$strict = true) { + /// @todo Move this function to the xml class if($strict) { if(! strstr($s,'code." at ".$err->line.":".$err->column." : ".$err->message, LOGGER_DATA); + } libxml_clear_errors(); } return $x; -}} - -function add_fcontact($arr,$update = false) { - - if($update) { - $r = q("UPDATE `fcontact` SET - `name` = '%s', - `photo` = '%s', - `request` = '%s', - `nick` = '%s', - `addr` = '%s', - `batch` = '%s', - `notify` = '%s', - `poll` = '%s', - `confirm` = '%s', - `alias` = '%s', - `pubkey` = '%s', - `updated` = '%s' - WHERE `url` = '%s' AND `network` = '%s'", - dbesc($arr['name']), - dbesc($arr['photo']), - dbesc($arr['request']), - dbesc($arr['nick']), - dbesc($arr['addr']), - dbesc($arr['batch']), - dbesc($arr['notify']), - dbesc($arr['poll']), - dbesc($arr['confirm']), - dbesc($arr['alias']), - dbesc($arr['pubkey']), - dbesc(datetime_convert()), - dbesc($arr['url']), - dbesc($arr['network']) - ); - } - else { - $r = q("insert into fcontact ( `url`,`name`,`photo`,`request`,`nick`,`addr`, - `batch`, `notify`,`poll`,`confirm`,`network`,`alias`,`pubkey`,`updated` ) - values('%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s')", - dbesc($arr['url']), - dbesc($arr['name']), - dbesc($arr['photo']), - dbesc($arr['request']), - dbesc($arr['nick']), - dbesc($arr['addr']), - dbesc($arr['batch']), - dbesc($arr['notify']), - dbesc($arr['poll']), - dbesc($arr['confirm']), - dbesc($arr['network']), - dbesc($arr['alias']), - dbesc($arr['pubkey']), - dbesc(datetime_convert()) - ); - } - - return $r; } - function scale_external_images($srctext, $include_link = true, $scale_replace = false) { // Suppress "view full size" - if (intval(get_config('system','no_view_full_size'))) + if (intval(get_config('system','no_view_full_size'))) { $include_link = false; + } $a = get_app(); @@ -925,38 +576,41 @@ function scale_external_images($srctext, $include_link = true, $scale_replace = $matches = null; $c = preg_match_all('/\[img.*?\](.*?)\[\/img\]/ism',$s,$matches,PREG_SET_ORDER); - if($c) { + if ($c) { require_once('include/Photo.php'); - foreach($matches as $mtch) { + foreach ($matches as $mtch) { logger('scale_external_image: ' . $mtch[1]); - $hostname = str_replace('www.','',substr($a->get_baseurl(),strpos($a->get_baseurl(),'://')+3)); - if(stristr($mtch[1],$hostname)) + $hostname = str_replace('www.','',substr(App::get_baseurl(),strpos(App::get_baseurl(),'://')+3)); + if (stristr($mtch[1],$hostname)) { continue; + } // $scale_replace, if passed, is an array of two elements. The // first is the name of the full-size image. The second is the // name of a remote, scaled-down version of the full size image. // This allows Friendica to display the smaller remote image if // one exists, while still linking to the full-size image - if($scale_replace) + if ($scale_replace) { $scaled = str_replace($scale_replace[0], $scale_replace[1], $mtch[1]); - else + } else { $scaled = $mtch[1]; - $i = @fetch_url($scaled); - if(! $i) + } + $i = fetch_url($scaled); + if (! $i) { return $srctext; + } // guess mimetype from headers or filename $type = guess_image_type($mtch[1],true); - if($i) { + if ($i) { $ph = new Photo($i, $type); - if($ph->is_valid()) { + if ($ph->is_valid()) { $orig_width = $ph->getWidth(); $orig_height = $ph->getHeight(); - if($orig_width > 640 || $orig_height > 640) { + if ($orig_width > 640 || $orig_height > 640) { $ph->scaleImage(640); $new_width = $ph->getWidth(); @@ -982,7 +636,7 @@ function scale_external_images($srctext, $include_link = true, $scale_replace = function fix_contact_ssl_policy(&$contact,$new_policy) { $ssl_changed = false; - if((intval($new_policy) == SSL_POLICY_SELFSIGN || $new_policy === 'self') && strstr($contact['url'],'https:')) { + if ((intval($new_policy) == SSL_POLICY_SELFSIGN || $new_policy === 'self') && strstr($contact['url'],'https:')) { $ssl_changed = true; $contact['url'] = str_replace('https:','http:',$contact['url']); $contact['request'] = str_replace('https:','http:',$contact['request']); @@ -992,7 +646,7 @@ function fix_contact_ssl_policy(&$contact,$new_policy) { $contact['poco'] = str_replace('https:','http:',$contact['poco']); } - if((intval($new_policy) == SSL_POLICY_FULL || $new_policy === 'full') && strstr($contact['url'],'http:')) { + if ((intval($new_policy) == SSL_POLICY_FULL || $new_policy === 'full') && strstr($contact['url'],'http:')) { $ssl_changed = true; $contact['url'] = str_replace('http:','https:',$contact['url']); $contact['request'] = str_replace('http:','https:',$contact['request']); @@ -1002,15 +656,15 @@ function fix_contact_ssl_policy(&$contact,$new_policy) { $contact['poco'] = str_replace('http:','https:',$contact['poco']); } - if($ssl_changed) { - q("update contact set - url = '%s', - request = '%s', - notify = '%s', - poll = '%s', - confirm = '%s', - poco = '%s' - where id = %d limit 1", + if ($ssl_changed) { + q("UPDATE `contact` SET + `url` = '%s', + `request` = '%s', + `notify` = '%s', + `poll` = '%s', + `confirm` = '%s', + `poco` = '%s' + WHERE `id` = %d LIMIT 1", dbesc($contact['url']), dbesc($contact['request']), dbesc($contact['notify']), @@ -1022,207 +676,71 @@ function fix_contact_ssl_policy(&$contact,$new_policy) { } } - - /** - * xml2array() will convert the given XML text to an array in the XML structure. - * Link: http://www.bin-co.com/php/scripts/xml2array/ - * Portions significantly re-written by mike@macgirvin.com for Friendica (namespaces, lowercase tags, get_attribute default changed, more...) - * Arguments : $contents - The XML text - * $namespaces - true or false include namespace information in the returned array as array elements. - * $get_attributes - 1 or 0. If this is 1 the function will get the attributes as well as the tag values - this results in a different array structure in the return value. - * $priority - Can be 'tag' or 'attribute'. This will change the way the resulting array sturcture. For 'tag', the tags are given more importance. - * Return: The parsed XML in an array form. Use print_r() to see the resulting array structure. - * Examples: $array = xml2array(file_get_contents('feed.xml')); - * $array = xml2array(file_get_contents('feed.xml', true, 1, 'attribute')); + * @brief Remove Google Analytics and other tracking platforms params from URL + * + * @param string $url Any user-submitted URL that may contain tracking params + * @return string The same URL stripped of tracking parameters */ - -function xml2array($contents, $namespaces = true, $get_attributes=1, $priority = 'attribute') { - if(!$contents) return array(); - - if(!function_exists('xml_parser_create')) { - logger('xml2array: parser function missing'); - return array(); - } - - - libxml_use_internal_errors(true); - libxml_clear_errors(); - - if($namespaces) - $parser = @xml_parser_create_ns("UTF-8",':'); - else - $parser = @xml_parser_create(); - - if(! $parser) { - logger('xml2array: xml_parser_create: no resource'); - return array(); - } - - xml_parser_set_option($parser, XML_OPTION_TARGET_ENCODING, "UTF-8"); - // http://minutillo.com/steve/weblog/2004/6/17/php-xml-and-character-encodings-a-tale-of-sadness-rage-and-data-loss - xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, 0); - xml_parser_set_option($parser, XML_OPTION_SKIP_WHITE, 1); - @xml_parse_into_struct($parser, trim($contents), $xml_values); - @xml_parser_free($parser); - - if(! $xml_values) { - logger('xml2array: libxml: parse error: ' . $contents, LOGGER_DATA); - foreach(libxml_get_errors() as $err) - logger('libxml: parse: ' . $err->code . " at " . $err->line . ":" . $err->column . " : " . $err->message, LOGGER_DATA); - libxml_clear_errors(); - return; - } - - //Initializations - $xml_array = array(); - $parents = array(); - $opened_tags = array(); - $arr = array(); - - $current = &$xml_array; // Reference - - // Go through the tags. - $repeated_tag_index = array(); // Multiple tags with same name will be turned into an array - foreach($xml_values as $data) { - unset($attributes,$value); // Remove existing values, or there will be trouble - - // This command will extract these variables into the foreach scope - // tag(string), type(string), level(int), attributes(array). - extract($data); // We could use the array by itself, but this cooler. - - $result = array(); - $attributes_data = array(); - - if(isset($value)) { - if($priority == 'tag') $result = $value; - else $result['value'] = $value; // Put the value in a assoc array if we are in the 'Attribute' mode - } - - //Set the attributes too. - if(isset($attributes) and $get_attributes) { - foreach($attributes as $attr => $val) { - if($priority == 'tag') $attributes_data[$attr] = $val; - else $result['@attributes'][$attr] = $val; // Set all the attributes in a array called 'attr' - } - } - - // See tag status and do the needed. - if($namespaces && strpos($tag,':')) { - $namespc = substr($tag,0,strrpos($tag,':')); - $tag = strtolower(substr($tag,strlen($namespc)+1)); - $result['@namespace'] = $namespc; - } - $tag = strtolower($tag); - - if($type == "open") { // The starting of the tag '' - $parent[$level-1] = &$current; - if(!is_array($current) or (!in_array($tag, array_keys($current)))) { // Insert New tag - $current[$tag] = $result; - if($attributes_data) $current[$tag. '_attr'] = $attributes_data; - $repeated_tag_index[$tag.'_'.$level] = 1; - - $current = &$current[$tag]; - - } else { // There was another element with the same tag name - - if(isset($current[$tag][0])) { // If there is a 0th element it is already an array - $current[$tag][$repeated_tag_index[$tag.'_'.$level]] = $result; - $repeated_tag_index[$tag.'_'.$level]++; - } else { // This section will make the value an array if multiple tags with the same name appear together - $current[$tag] = array($current[$tag],$result); // This will combine the existing item and the new item together to make an array - $repeated_tag_index[$tag.'_'.$level] = 2; - - if(isset($current[$tag.'_attr'])) { // The attribute of the last(0th) tag must be moved as well - $current[$tag]['0_attr'] = $current[$tag.'_attr']; - unset($current[$tag.'_attr']); - } - - } - $last_item_index = $repeated_tag_index[$tag.'_'.$level]-1; - $current = &$current[$tag][$last_item_index]; - } - - } elseif($type == "complete") { // Tags that ends in 1 line '' - //See if the key is already taken. - if(!isset($current[$tag])) { //New Key - $current[$tag] = $result; - $repeated_tag_index[$tag.'_'.$level] = 1; - if($priority == 'tag' and $attributes_data) $current[$tag. '_attr'] = $attributes_data; - - } else { // If taken, put all things inside a list(array) - if(isset($current[$tag][0]) and is_array($current[$tag])) { // If it is already an array... - - // ...push the new element into that array. - $current[$tag][$repeated_tag_index[$tag.'_'.$level]] = $result; - - if($priority == 'tag' and $get_attributes and $attributes_data) { - $current[$tag][$repeated_tag_index[$tag.'_'.$level] . '_attr'] = $attributes_data; - } - $repeated_tag_index[$tag.'_'.$level]++; - - } else { // If it is not an array... - $current[$tag] = array($current[$tag],$result); //...Make it an array using using the existing value and the new value - $repeated_tag_index[$tag.'_'.$level] = 1; - if($priority == 'tag' and $get_attributes) { - if(isset($current[$tag.'_attr'])) { // The attribute of the last(0th) tag must be moved as well - - $current[$tag]['0_attr'] = $current[$tag.'_attr']; - unset($current[$tag.'_attr']); - } - - if($attributes_data) { - $current[$tag][$repeated_tag_index[$tag.'_'.$level] . '_attr'] = $attributes_data; - } - } - $repeated_tag_index[$tag.'_'.$level]++; // 0 and 1 indexes are already taken - } - } - - } elseif($type == 'close') { // End of tag '' - $current = &$parent[$level-1]; - } - } - - return($xml_array); -} - -function original_url($url, $depth=1, $fetchbody = false) { - - $a = get_app(); - - // Remove Analytics Data from Google and other tracking platforms +function strip_tracking_query_params($url) +{ $urldata = parse_url($url); if (is_string($urldata["query"])) { $query = $urldata["query"]; parse_str($query, $querydata); - if (is_array($querydata)) - foreach ($querydata AS $param=>$value) + if (is_array($querydata)) { + foreach ($querydata AS $param => $value) { if (in_array($param, array("utm_source", "utm_medium", "utm_term", "utm_content", "utm_campaign", "wt_mc", "pk_campaign", "pk_kwd", "mc_cid", "mc_eid", "fb_action_ids", "fb_action_types", "fb_ref", "awesm", "wtrid", "woo_campaign", "woo_source", "woo_medium", "woo_content", "woo_term"))) { - $pair = $param."=".urlencode($value); + $pair = $param . "=" . urlencode($value); $url = str_replace($pair, "", $url); // Second try: if the url isn't encoded completely - $pair = $param."=".str_replace(" ", "+", $value); + $pair = $param . "=" . str_replace(" ", "+", $value); $url = str_replace($pair, "", $url); // Third try: Maybey the url isn't encoded at all - $pair = $param."=".$value; + $pair = $param . "=" . $value; $url = str_replace($pair, "", $url); $url = str_replace(array("?&", "&&"), array("?", ""), $url); } + } + } - if (substr($url, -1, 1) == "?") + if (substr($url, -1, 1) == "?") { $url = substr($url, 0, -1); + } } + return $url; +} + +/** + * @brief Returns the original URL of the provided URL + * + * This function strips tracking query params and follows redirections, either + * through HTTP code or meta refresh tags. Stops after 10 redirections. + * + * @todo Remove the $fetchbody parameter that generates an extraneous HEAD request + * + * @see ParseUrl::getSiteinfo + * + * @param string $url A user-submitted URL + * @param int $depth The current redirection recursion level (internal) + * @param bool $fetchbody Wether to fetch the body or not after the HEAD requests + * @return string A canonical URL + */ +function original_url($url, $depth = 1, $fetchbody = false) { + $a = get_app(); + + $url = strip_tracking_query_params($url); + if ($depth > 10) return($url); @@ -1246,6 +764,9 @@ function original_url($url, $depth=1, $fetchbody = false) { $a->save_timestamp($stamp1, "network"); + if ($http_code == 0) + return($url); + if ((($curl_info['http_code'] == "301") OR ($curl_info['http_code'] == "302")) AND (($curl_info['redirect_url'] != "") OR ($curl_info['location'] != ""))) { if ($curl_info['redirect_url'] != "") @@ -1310,7 +831,6 @@ function original_url($url, $depth=1, $fetchbody = false) { return($url); } -if (!function_exists('short_link')) { function short_link($url) { require_once('library/slinky.php'); $slinky = new Slinky($url); @@ -1324,12 +844,81 @@ function short_link($url) { $yourls->set('password', $yourls_password); $yourls->set('ssl', $yourls_ssl); $yourls->set('yourls-url', $yourls_url); - $slinky->set_cascade( array($yourls, new Slinky_UR1ca(), new Slinky_Trim(), new Slinky_IsGd(), new Slinky_TinyURL())); + $slinky->set_cascade(array($yourls, new Slinky_Ur1ca(), new Slinky_TinyURL())); } else { // setup a cascade of shortening services // try to get a short link from these services - // in the order ur1.ca, trim, id.gd, tinyurl - $slinky->set_cascade(array(new Slinky_UR1ca(), new Slinky_Trim(), new Slinky_IsGd(), new Slinky_TinyURL())); + // in the order ur1.ca, tinyurl + $slinky->set_cascade(array(new Slinky_Ur1ca(), new Slinky_TinyURL())); } return $slinky->short(); -}}; +} + +/** + * @brief Encodes content to json + * + * This function encodes an array to json format + * and adds an application/json HTTP header to the output. + * After finishing the process is getting killed. + * + * @param array $x The input content + */ +function json_return_and_die($x) { + header("content-type: application/json"); + echo json_encode($x); + killme(); +} + +/** + * @brief Find the matching part between two url + * + * @param string $url1 + * @param string $url2 + * @return string The matching part + */ +function matching_url($url1, $url2) { + + if (($url1 == "") OR ($url2 == "")) + return ""; + + $url1 = normalise_link($url1); + $url2 = normalise_link($url2); + + $parts1 = parse_url($url1); + $parts2 = parse_url($url2); + + if (!isset($parts1["host"]) OR !isset($parts2["host"])) + return ""; + + if ($parts1["scheme"] != $parts2["scheme"]) + return ""; + + if ($parts1["host"] != $parts2["host"]) + return ""; + + if ($parts1["port"] != $parts2["port"]) + return ""; + + $match = $parts1["scheme"]."://".$parts1["host"]; + + if ($parts1["port"]) + $match .= ":".$parts1["port"]; + + $pathparts1 = explode("/", $parts1["path"]); + $pathparts2 = explode("/", $parts2["path"]); + + $i = 0; + $path = ""; + do { + $path1 = $pathparts1[$i]; + $path2 = $pathparts2[$i]; + + if ($path1 == $path2) + $path .= $path1."/"; + + } while (($path1 == $path2) AND ($i++ <= count($pathparts1))); + + $match .= $path; + + return normalise_link($match); +}