* @file include/network.php
*/
-require_once("include/xml.php");
+use Friendica\App;
+use Friendica\Core\Config;
+use Friendica\Network\Probe;
+require_once("include/xml.php");
/**
* @brief Curl wrapper
- *
+ *
* If binary flag is true, return binary results.
* Set the cookiejar argument to a string (e.g. "/tmp/friendica-cookies.txt")
* to preserve cookies from one request to the next.
- *
+ *
* @param string $url URL to fetch
* @param boolean $binary default false
* TRUE if asked to return binary results (file download)
* @param integer $timeout Timeout in seconds, default system config value or 60 seconds
* @param string $accept_content supply Accept: header with 'accept_content' as the value
* @param string $cookiejar Path to cookie jar file
- *
+ *
* @return string The fetched content
*/
function fetch_url($url,$binary = false, &$redirects = 0, $timeout = 0, $accept_content=Null, $cookiejar = 0) {
* string 'header' => HTTP headers
* string 'body' => fetched content
*/
-function z_fetch_url($url,$binary = false, &$redirects = 0, $opts=array()) {
-
- $ret = array('return_code' => 0, 'success' => false, 'header' => "", 'body' => "");
-
+function z_fetch_url($url, $binary = false, &$redirects = 0, $opts = array()) {
+ $ret = array('return_code' => 0, 'success' => false, 'header' => '', 'body' => '');
$stamp1 = microtime(true);
$a = get_app();
+ if (blocked_url($url)) {
+ logger('z_fetch_url: domain of ' . $url . ' is blocked', LOGGER_DATA);
+ return $ret;
+ }
+
$ch = @curl_init($url);
- if(($redirects > 8) || (! $ch))
- return false;
+
+ if (($redirects > 8) || (!$ch)) {
+ return $ret;
+ }
@curl_setopt($ch, CURLOPT_HEADER, true);
- if(x($opts,"cookiejar")) {
+ if (x($opts, "cookiejar")) {
curl_setopt($ch, CURLOPT_COOKIEJAR, $opts["cookiejar"]);
curl_setopt($ch, CURLOPT_COOKIEFILE, $opts["cookiejar"]);
}
// @curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
// @curl_setopt($ch, CURLOPT_MAXREDIRS, 5);
- if (x($opts,'accept_content')){
- curl_setopt($ch,CURLOPT_HTTPHEADER, array (
- "Accept: " . $opts['accept_content']
+ if (x($opts, 'accept_content')) {
+ curl_setopt($ch, CURLOPT_HTTPHEADER, array(
+ 'Accept: ' . $opts['accept_content']
));
}
- @curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);
+ @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')){
+ if (x($opts, 'headers')) {
@curl_setopt($ch, CURLOPT_HTTPHEADER, $opts['headers']);
}
- if(x($opts,'nobody')){
+
+ if (x($opts, 'nobody')) {
@curl_setopt($ch, CURLOPT_NOBODY, $opts['nobody']);
}
- if(x($opts,'timeout')){
+
+ if (x($opts, 'timeout')) {
@curl_setopt($ch, CURLOPT_TIMEOUT, $opts['timeout']);
} else {
- $curl_time = intval(get_config('system','curl_timeout'));
+ $curl_time = intval(get_config('system', 'curl_timeout'));
@curl_setopt($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');
+ $check_cert = get_config('system', 'verifyssl');
@curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, (($check_cert) ? true : false));
- @curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, (($check_cert) ? 2 : false));
- $prx = get_config('system','proxy');
- if(strlen($prx)) {
+ if ($check_cert) {
+ @curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2);
+ }
+
+ $proxy = get_config('system', 'proxy');
+
+ if (strlen($proxy)) {
@curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
- @curl_setopt($ch, CURLOPT_PROXY, $prx);
- $prxusr = @get_config('system','proxyuser');
- if(strlen($prxusr))
- @curl_setopt($ch, CURLOPT_PROXYUSERPWD, $prxusr);
+ @curl_setopt($ch, CURLOPT_PROXY, $proxy);
+ $proxyuser = @get_config('system', 'proxyuser');
+
+ if (strlen($proxyuser)) {
+ @curl_setopt($ch, CURLOPT_PROXYUSERPWD, $proxyuser);
+ }
+ }
+
+ if ($binary) {
+ @curl_setopt($ch, CURLOPT_BINARYTRANSFER, 1);
}
- if($binary)
- @curl_setopt($ch, CURLOPT_BINARYTRANSFER,1);
$a->set_curl_code(0);
// 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);
+ logger('fetch_url error fetching ' . $url . ': ' . curl_error($ch), LOGGER_NORMAL);
}
+ $ret['errno'] = curl_errno($ch);
+
$base = $s;
$curl_info = @curl_getinfo($ch);
$http_code = $curl_info['http_code'];
- logger('fetch_url '.$url.': '.$http_code." ".$s, LOGGER_DATA);
+ logger('fetch_url ' . $url . ': ' . $http_code . " " . $s, LOGGER_DATA);
$header = '';
// Pull out multiple headers, e.g. proxy and continuation headers
// allow for HTTP/2.x without fixing code
- while(preg_match('/^HTTP\/[1-2].+? [1-5][0-9][0-9]/',$base)) {
- $chunk = substr($base,0,strpos($base,"\r\n\r\n")+4);
+ while (preg_match('/^HTTP\/[1-2].+? [1-5][0-9][0-9]/', $base)) {
+ $chunk = substr($base, 0, strpos($base,"\r\n\r\n") + 4);
$header .= $chunk;
- $base = substr($base,strlen($chunk));
+ $base = substr($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"]);
+ 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']);
- $newurl = $curl_info["redirect_url"];
+ $newurl = $curl_info['redirect_url'];
- if (($new_location_info["path"] == "") AND ($new_location_info["host"] != ""))
- $newurl = $new_location_info["scheme"]."://".$new_location_info["host"].$old_location_info["path"];
+ if (($new_location_info['path'] == '') AND ( $new_location_info['host'] != '')) {
+ $newurl = $new_location_info['scheme'] . '://' . $new_location_info['host'] . $old_location_info['path'];
+ }
$matches = array();
+
if (preg_match('/(Location:|URI:)(.*?)\n/i', $header, $matches)) {
$newurl = trim(array_pop($matches));
}
- if(strpos($newurl,'/') === 0)
+ if (strpos($newurl,'/') === 0) {
$newurl = $old_location_info["scheme"]."://".$old_location_info["host"].$newurl;
+ }
+
if (filter_var($newurl, FILTER_VALIDATE_URL)) {
$redirects++;
@curl_close($ch);
- return z_fetch_url($newurl,$binary, $redirects, $opts);
+ return z_fetch_url($newurl, $binary, $redirects, $opts);
}
}
-
$a->set_curl_code($http_code);
$a->set_curl_content_type($curl_info['content_type']);
- $body = substr($s,strlen($header));
-
-
+ $body = substr($s, strlen($header));
$rc = intval($http_code);
$ret['return_code'] = $rc;
$ret['success'] = (($rc >= 200 && $rc <= 299) ? true : false);
$ret['redirect_url'] = $url;
- if(! $ret['success']) {
+
+ if (!$ret['success']) {
$ret['error'] = curl_error($ch);
$ret['debug'] = $curl_info;
logger('z_fetch_url: error: ' . $url . ': ' . $ret['error'], LOGGER_DEBUG);
- logger('z_fetch_url: debug: ' . print_r($curl_info,true), LOGGER_DATA);
+ logger('z_fetch_url: debug: ' . print_r($curl_info, true), LOGGER_DATA);
}
- $ret['body'] = substr($s,strlen($header));
+
+ $ret['body'] = substr($s, strlen($header));
$ret['header'] = $header;
- if(x($opts,'debug')) {
+
+ if (x($opts, 'debug')) {
$ret['debug'] = $curl_info;
}
+
@curl_close($ch);
- $a->save_timestamp($stamp1, "network");
+ $a->save_timestamp($stamp1, 'network');
return($ret);
-
}
-// post request to $url. $params is an array of post variables.
-
/**
- * @brief Post request to $url
- *
+ * @brief Send POST request to $url
+ *
* @param string $url URL to post
- * @param mixed $params
+ * @param mixed $params array of POST variables
* @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, $timeout = 0) {
+function post_url($url, $params, $headers = null, &$redirects = 0, $timeout = 0) {
$stamp1 = microtime(true);
+ if (blocked_url($url)) {
+ logger('post_url: domain of ' . $url . ' is blocked', LOGGER_DATA);
+ return false;
+ }
+
$a = get_app();
$ch = curl_init($url);
- if(($redirects > 8) || (! $ch))
+
+ if (($redirects > 8) || (!$ch)) {
return false;
+ }
- logger("post_url: start ".$url, LOGGER_DATA);
+ logger('post_url: start ' . $url, LOGGER_DATA);
curl_setopt($ch, CURLOPT_HEADER, true);
- curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);
- curl_setopt($ch, CURLOPT_POST,1);
- curl_setopt($ch, CURLOPT_POSTFIELDS,$params);
+ curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+ curl_setopt($ch, CURLOPT_POST, 1);
+ curl_setopt($ch, CURLOPT_POSTFIELDS, $params);
curl_setopt($ch, CURLOPT_USERAGENT, $a->get_useragent());
- if(intval($timeout)) {
+ if (intval($timeout)) {
curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);
- }
- else {
- $curl_time = intval(get_config('system','curl_timeout'));
+ } else {
+ $curl_time = intval(get_config('system', 'curl_timeout'));
curl_setopt($ch, CURLOPT_TIMEOUT, (($curl_time !== false) ? $curl_time : 60));
}
- if(defined('LIGHTTPD')) {
- if(!is_array($headers)) {
+ if (defined('LIGHTTPD')) {
+ if (!is_array($headers)) {
$headers = array('Expect:');
} else {
- if(!in_array('Expect:', $headers)) {
+ if (!in_array('Expect:', $headers)) {
array_push($headers, 'Expect:');
}
}
}
- if($headers)
+
+ if ($headers) {
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
+ }
- $check_cert = get_config('system','verifyssl');
+ $check_cert = get_config('system', 'verifyssl');
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, (($check_cert) ? true : false));
- curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, (($check_cert) ? 2 : false));
- $prx = get_config('system','proxy');
- if(strlen($prx)) {
+
+ if ($check_cert) {
+ @curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2);
+ }
+
+ $proxy = get_config('system', 'proxy');
+
+ if (strlen($proxy)) {
curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
- curl_setopt($ch, CURLOPT_PROXY, $prx);
- $prxusr = get_config('system','proxyuser');
- if(strlen($prxusr))
- curl_setopt($ch, CURLOPT_PROXYUSERPWD, $prxusr);
+ curl_setopt($ch, CURLOPT_PROXY, $proxy);
+ $proxyuser = get_config('system', 'proxyuser');
+ if (strlen($proxyuser)) {
+ curl_setopt($ch, CURLOPT_PROXYUSERPWD, $proxyuser);
+ }
}
$a->set_curl_code(0);
$curl_info = curl_getinfo($ch);
$http_code = $curl_info['http_code'];
- logger("post_url: result ".$http_code." - ".$url, LOGGER_DATA);
+ logger('post_url: result ' . $http_code . ' - ' . $url, LOGGER_DATA);
$header = '';
// Pull out multiple headers, e.g. proxy and continuation headers
// allow for HTTP/2.x without fixing code
- while(preg_match('/^HTTP\/[1-2].+? [1-5][0-9][0-9]/',$base)) {
- $chunk = substr($base,0,strpos($base,"\r\n\r\n")+4);
+ while (preg_match('/^HTTP\/[1-2].+? [1-5][0-9][0-9]/', $base)) {
+ $chunk = substr($base, 0, strpos($base, "\r\n\r\n") + 4);
$header .= $chunk;
- $base = substr($base,strlen($chunk));
+ $base = substr($base, strlen($chunk));
}
- if($http_code == 301 || $http_code == 302 || $http_code == 303 || $http_code == 307) {
+ if ($http_code == 301 || $http_code == 302 || $http_code == 303 || $http_code == 307) {
$matches = array();
preg_match('/(Location:|URI:)(.*?)\n/', $header, $matches);
$newurl = trim(array_pop($matches));
- if(strpos($newurl,'/') === 0)
+
+ if (strpos($newurl, '/') === 0) {
$newurl = $old_location_info["scheme"] . "://" . $old_location_info["host"] . $newurl;
+ }
+
if (filter_var($newurl, FILTER_VALIDATE_URL)) {
$redirects++;
- logger("post_url: redirect ".$url." to ".$newurl);
- return post_url($newurl,$params, $headers, $redirects, $timeout);
- //return fetch_url($newurl,false,$redirects,$timeout);
+ logger('post_url: redirect ' . $url . ' to ' . $newurl);
+ return post_url($newurl, $params, $headers, $redirects, $timeout);
}
}
+
$a->set_curl_code($http_code);
- $body = substr($s,strlen($header));
+
+ $body = substr($s, strlen($header));
$a->set_curl_headers($header);
curl_close($ch);
- $a->save_timestamp($stamp1, "network");
+ $a->save_timestamp($stamp1, 'network');
- logger("post_url: end ".$url, LOGGER_DATA);
+ logger('post_url: end ' . $url, LOGGER_DATA);
- return($body);
+ return $body;
}
// Generic XML return
$xml_message = ((strlen($message)) ? "\t<message>" . xmlify($message) . "</message>\r\n" : '');
- if($st)
+ if ($st)
logger('xml_status returning non_zero: ' . $st . " message=" . $message);
header( "Content-type: text/xml" );
killme();
}
-
/**
* @brief Send HTTP status header and exit.
*
* 'description' => optional message
*/
+/**
+ * @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()) {
$err = '';
- if($val >= 400) {
+ if ($val >= 400) {
$err = 'Error';
if (!isset($description["title"]))
$description["title"] = $err." ".$val;
}
- if($val >= 200 && $val < 300)
+ if ($val >= 200 && $val < 300)
$err = 'OK';
logger('http_status_exit ' . $val);
}
-// 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 $webbie.
-// Return an empty string if email-style addresses but webfinger fails,
-// or if the resultant personal XRD doesn't contain a supported
-// subscription/friend-request attribute.
-
-// amended 7/9/2011 to return an hcard which could save potentially loading
-// a lengthy content page to scrape dfrn attributes
-
-function webfinger_dfrn($webbie,&$hcard) {
- if(! strstr($webbie,'@')) {
- return $webbie;
- }
- $profile_link = '';
-
- $links = webfinger($webbie);
- logger('webfinger_dfrn: ' . $webbie . ':' . print_r($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;
-}
-
-/**
- * @brief Perform webfinger lookup on an email style address
- *
- * @param string $webbi An email style address
- * @param boolean $debug
- *
- * @return array of link attributes from the personal XRD file
- * empty array on error/failure
- */
-function webfinger($webbie, $debug = false) {
- $host = '';
- if(strstr($webbie,'@')) {
- $host = substr($webbie,strpos($webbie,'@') + 1);
- }
- if(strlen($host)) {
- $tpl = fetch_lrdd_template($host);
- logger('webfinger: lrdd template: ' . $tpl);
- if(strlen($tpl)) {
- $pxrd = str_replace('{uri}', urlencode('acct:' . $webbie), $tpl);
- logger('webfinger: pxrd: ' . $pxrd);
- $links = fetch_xrd_links($pxrd);
- if(! count($links)) {
- // try with double slashes
- $pxrd = str_replace('{uri}', urlencode('acct://' . $webbie), $tpl);
- logger('webfinger: pxrd: ' . $pxrd);
- $links = fetch_xrd_links($pxrd);
- }
- return $links;
- }
- }
- return array();
-}
-
-function lrdd($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,'<xrd'))
- return array();
-
- $h = parse_xml_string($xml);
- if(! $h)
- return array();
-
- $arr = xml::element_to_array($h);
-
- if(isset($arr['xrd']['property'])) {
- $property = $arr['crd']['property'];
- if(! isset($property[0]))
- $properties = array($property);
- else
- $properties = $property;
- foreach($properties as $prop)
- if((string) $prop['@attributes'] === 'http://lrdd.net/priority/resource')
- $priority = 'resource';
- }
-
- // save the links in case we need them
-
- $links = array();
-
- if(isset($arr['xrd']['link'])) {
- $link = $arr['xrd']['link'];
- if(! isset($link[0]))
- $links = array($link);
- else
- $links = $link;
- }
-
- // do we have a template or href?
-
- if(count($links)) {
- foreach($links as $link) {
- if($link['@attributes']['rel'] && attribute_contains($link['@attributes']['rel'],'lrdd')) {
- if(x($link['@attributes'],'template'))
- $tpl = $link['@attributes']['template'];
- elseif(x($link['@attributes'],'href'))
- $href = $link['@attributes']['href'];
- }
- }
- }
-
- if((! isset($tpl)) || (! strpos($tpl,'{uri}')))
- $tpl = '';
-
- if($priority === 'host') {
- if(strlen($tpl))
- $pxrd = str_replace('{uri}', urlencode($uri), $tpl);
- elseif(isset($href))
- $pxrd = $href;
- if(isset($pxrd)) {
- logger('lrdd: (host priority) pxrd: ' . $pxrd);
- $links = fetch_xrd_links($pxrd);
- return $links;
- }
-
- $lines = explode("\n",$headers);
- if(count($lines)) {
- foreach($lines as $line) {
- if((stristr($line,'link:')) && preg_match('/<([^>].*)>.*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,'<?xml')) {
- require_once('library/HTML5/Parser.php');
-
- try {
- $dom = HTML5_Parser::parse($html);
- } catch (DOMException $e) {
- logger('lrdd: parse error: ' . $e);
- }
-
- if(isset($dom) && $dom) {
- $items = $dom->getElementsByTagName('link');
- foreach($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($html,'<rss') || stristr($html,'<feed'))
- return array();
- }
- }
-
- if(isset($pagelink))
- return(fetch_xrd_links($pagelink));
-
- // If we haven't found any links, return the host xrd links (which we have already fetched)
-
- if(isset($links))
- return $links;
-
- return array();
-
-}
-
-// Given a host name, locate the LRDD template from that
-// host. Returns the LRDD template or an empty string on
-// error/failure.
-
-function fetch_lrdd_template($host) {
- $tpl = '';
-
- $url1 = 'https://' . $host . '/.well-known/host-meta' ;
- $url2 = 'http://' . $host . '/.well-known/host-meta' ;
- $links = fetch_xrd_links($url1);
- logger('fetch_lrdd_template from: ' . $url1);
- logger('template (https): ' . print_r($links,true));
- if(! count($links)) {
- logger('fetch_lrdd_template from: ' . $url2);
- $links = fetch_xrd_links($url2);
- logger('template (http): ' . print_r($links,true));
- }
- if(count($links)) {
- foreach($links as $link)
- if($link['@attributes']['rel'] && $link['@attributes']['rel'] === 'lrdd' && (!$link['@attributes']['type'] || $link['@attributes']['type'] === 'application/xrd+xml'))
- $tpl = $link['@attributes']['template'];
- }
- if(! strpos($tpl,'{uri}'))
- $tpl = '';
- return $tpl;
-}
-
-/**
- * @brief Given a URL, retrieve the page as an XRD document.
- *
- * @param string $url An url
- * @return array of links
- * return empty array on error/failure
- */
-function fetch_xrd_links($url) {
-
- $xrd_timeout = intval(get_config('system','xrd_timeout'));
- $redirects = 0;
- $xml = fetch_url($url,false,$redirects,(($xrd_timeout) ? $xrd_timeout : 20), "application/xrd+xml");
-
- logger('fetch_xrd_links: ' . $xml, LOGGER_DATA);
-
- if ((! $xml) || (! stristr($xml,'<xrd')))
- return array();
-
- // fix diaspora's bad xml
- $xml = str_replace(array('href="','"/>'),array('href="','"/>'),$xml);
-
- $h = parse_xml_string($xml);
- if(! $h)
- return array();
-
- $arr = xml::element_to_array($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;
-
-}
-
/**
* @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'))
+ if (get_config('system','disable_url_validation'))
return true;
+
// no naked subdomains (allow localhost for tests)
- if(strpos($url,'.') === false && strpos($url,'/localhost/') === false)
+ if (strpos($url,'.') === false && strpos($url,'/localhost/') === false)
return false;
- if(substr($url,0,4) != 'http')
+
+ if (substr($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;
}
/**
* @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'))
+ if (get_config('system','disable_email_validation'))
return true;
- if(! strpos($addr,'@'))
+ if (! strpos($addr,'@'))
return false;
$h = substr($addr,strpos($addr,'@') + 1);
- if(($h) && (dns_get_record($h, DNS_A + DNS_CNAME + DNS_PTR + DNS_MX) || filter_var($h, FILTER_VALIDATE_IP) )) {
+ if (($h) && (dns_get_record($h, DNS_A + DNS_CNAME + DNS_PTR + DNS_MX) || filter_var($h, FILTER_VALIDATE_IP) )) {
return true;
}
return false;
/**
* @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
*/
$h = @parse_url($url);
- if(! $h) {
+ if (! $h) {
return false;
}
- $str_allowed = get_config('system','allowed_sites');
- if(! $str_allowed)
+ $str_allowed = Config::get('system', 'allowed_sites');
+ if (! $str_allowed) {
return true;
+ }
$found = false;
$host = strtolower($h['host']);
// always allow our own site
-
- if($host == strtolower($_SERVER['SERVER_NAME']))
+ if ($host == strtolower($_SERVER['SERVER_NAME'])) {
return true;
+ }
$fnmatch = function_exists('fnmatch');
- $allowed = explode(',',$str_allowed);
+ $allowed = explode(',', $str_allowed);
- if(count($allowed)) {
- foreach($allowed as $a) {
+ if (count($allowed)) {
+ foreach ($allowed as $a) {
$pat = strtolower(trim($a));
- if(($fnmatch && fnmatch($pat,$host)) || ($pat == $host)) {
+ if (($fnmatch && fnmatch($pat, $host)) || ($pat == $host)) {
$found = true;
break;
}
return $found;
}
+/**
+ * Checks if the provided url domain is on the domain blocklist.
+ * Returns true if it is or malformed URL, false if not.
+ *
+ * @param string $url The url to check the domain from
+ * @return boolean
+ */
+function blocked_url($url) {
+ $h = @parse_url($url);
+
+ if (! $h) {
+ return true;
+ }
+
+ $domain_blocklist = Config::get('system', 'blocklist', array());
+ if (! $domain_blocklist) {
+ return false;
+ }
+
+ $host = strtolower($h['host']);
+
+ foreach ($domain_blocklist as $domain_block) {
+ if (strtolower($domain_block['domain']) == $host) {
+ return true;
+ }
+ }
+
+ return false;
+}
+
/**
* @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) {
-
$domain = strtolower(substr($email,strpos($email,'@') + 1));
- if(! $domain)
+ if (! $domain) {
return false;
+ }
$str_allowed = get_config('system','allowed_email');
- if(! $str_allowed)
+ if (! $str_allowed) {
return true;
+ }
$found = false;
$fnmatch = function_exists('fnmatch');
$allowed = explode(',',$str_allowed);
- if(count($allowed)) {
- foreach($allowed as $a) {
+ if (count($allowed)) {
+ foreach ($allowed as $a) {
$pat = strtolower(trim($a));
- if(($fnmatch && fnmatch($pat,$domain)) || ($pat == $domain)) {
+ if (($fnmatch && fnmatch($pat,$domain)) || ($pat == $domain)) {
$found = true;
break;
}
function avatar_img($email) {
- $a = get_app();
-
$avatar['size'] = 175;
$avatar['email'] = $email;
$avatar['url'] = '';
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 $avatar['url'];
function parse_xml_string($s,$strict = true) {
/// @todo Move this function to the xml class
- if($strict) {
- if(! strstr($s,'<?xml'))
+ if ($strict) {
+ if (! strstr($s,'<?xml'))
return false;
$s2 = substr($s,strpos($s,'<?xml'));
}
libxml_use_internal_errors(true);
$x = @simplexml_load_string($s2);
- if(! $x) {
+ if (! $x) {
logger('libxml: parse: error: ' . $s2, LOGGER_DATA);
- foreach(libxml_get_errors() as $err)
+ foreach (libxml_get_errors() as $err) {
logger('libxml: parse: ' . $err->code." at ".$err->line.":".$err->column." : ".$err->message, LOGGER_DATA);
+ }
libxml_clear_errors();
}
return $x;
function scale_external_images($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();
$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 = $ph->getWidth();
function fix_contact_ssl_policy(&$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']);
$contact['poco'] = str_replace('https:','http:',$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']);
$contact['poco'] = str_replace('http:','https:',$contact['poco']);
}
- if($ssl_changed) {
- q("update contact set
- url = '%s',
- request = '%s',
- notify = '%s',
- poll = '%s',
- confirm = '%s',
- poco = '%s'
- where id = %d limit 1",
- dbesc($contact['url']),
- dbesc($contact['request']),
- dbesc($contact['notify']),
- dbesc($contact['poll']),
- dbesc($contact['confirm']),
- dbesc($contact['poco']),
- intval($contact['id'])
- );
+ if ($ssl_changed) {
+ dba::update('contact', $contact, array('id' => $contact['id']));
}
}
-function original_url($url, $depth=1, $fetchbody = false) {
-
- $a = get_app();
-
- // Remove Analytics Data from Google and other tracking platforms
+/**
+ * @brief Remove Google Analytics and other tracking platforms params from URL
+ *
+ * @param string $url Any user-submitted URL that may contain tracking params
+ * @return string The same URL stripped of tracking parameters
+ */
+function strip_tracking_query_params($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);
$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) {
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);
+}
projects / friendica.git / blobdiff