<?php
+/**
+ * @file include/network.php
+ */
-// curl wrapper. If binary flag is true, return binary
-// results.
+require_once("include/xml.php");
+require_once('include/Probe.php');
-// Set the cookiejar argument to a string (e.g. "/tmp/friendica-cookies.txt")
-// to preserve cookies from one request to the next.
-if(! function_exists('fetch_url')) {
+/**
+ * @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 $redirects The recursion counter for internal use - default 0
+ * @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) {
+ $ret = z_fetch_url(
+ $url,
+ $binary,
+ $redirects,
+ array('timeout'=>$timeout,
+ 'accept_content'=>$accept_content,
+ 'cookiejar'=>$cookiejar
+ ));
+
+ return($ret['body']);
+}
+
+/**
+ * @brief fetches an URL.
+ *
+ * @param string $url URL to fetch
+ * @param boolean $binary default false
+ * TRUE if asked to return binary results (file download)
+ * @param int $redirects The recursion counter for internal use - default 0
+ * @param array $opts (optional parameters) assoziative array with:
+ * 'accept_content' => supply Accept: header with 'accept_content' as the value
+ * 'timeout' => int Timeout in seconds, default system config value or 60 seconds
+ * 'http_auth' => username:password
+ * 'novalidate' => do not validate SSL certs, default is to validate using our CA list
+ * 'nobody' => only return the header
+ * 'cookiejar' => path to cookie jar file
+ *
+ * @return array an assoziative array with:
+ * int 'return_code' => HTTP return code or 0 if timeout or failure
+ * boolean 'success' => boolean true (if HTTP 2xx result) or false
+ * string 'redirect_url' => in case of redirect, content was finally retrieved from this URL
+ * string 'header' => HTTP headers
+ * string 'body' => fetched content
+ */
+function z_fetch_url($url,$binary = false, &$redirects = 0, $opts=array()) {
+
+ $ret = array('return_code' => 0, 'success' => false, 'header' => "", 'body' => "");
+
+
$stamp1 = microtime(true);
$a = get_app();
@curl_setopt($ch, CURLOPT_HEADER, true);
- if($cookiejar) {
- curl_setopt($ch, CURLOPT_COOKIEJAR, $cookiejar);
- curl_setopt($ch, CURLOPT_COOKIEFILE, $cookiejar);
+ if(x($opts,"cookiejar")) {
+ curl_setopt($ch, CURLOPT_COOKIEJAR, $opts["cookiejar"]);
+ curl_setopt($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($ch, CURLOPT_MAXREDIRS, 5);
- if (!is_null($accept_content)){
+ if (x($opts,'accept_content')){
curl_setopt($ch,CURLOPT_HTTPHEADER, array (
- "Accept: " . $accept_content
+ "Accept: " . $opts['accept_content']
));
}
@curl_setopt($ch, CURLOPT_USERAGENT, $a->get_useragent());
- if(intval($timeout)) {
- @curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);
+
+ if(x($opts,'headers')){
+ @curl_setopt($ch, CURLOPT_HTTPHEADER, $opts['headers']);
}
- else {
+ if(x($opts,'nobody')){
+ @curl_setopt($ch, CURLOPT_NOBODY, $opts['nobody']);
+ }
+ if(x($opts,'timeout')){
+ @curl_setopt($ch, CURLOPT_TIMEOUT, $opts['timeout']);
+ } else {
$curl_time = intval(get_config('system','curl_timeout'));
@curl_setopt($ch, CURLOPT_TIMEOUT, (($curl_time !== false) ? $curl_time : 60));
}
+
// by default we will allow self-signed certs
// but you can override this
// 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);
+ }
$base = $s;
$curl_info = @curl_getinfo($ch);
- @curl_close($ch);
+
$http_code = $curl_info['http_code'];
logger('fetch_url '.$url.': '.$http_code." ".$s, LOGGER_DATA);
$header = '';
$base = substr($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"]);
$newurl = $old_location_info["scheme"]."://".$old_location_info["host"].$newurl;
if (filter_var($newurl, FILTER_VALIDATE_URL)) {
$redirects++;
- return fetch_url($newurl,$binary,$redirects,$timeout,$accept_content,$cookiejar);
+ @curl_close($ch);
+ 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));
- $a->set_curl_headers($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;
+ logger('z_fetch_url: error: ' . $url . ': ' . $ret['error'], LOGGER_DEBUG);
+ logger('z_fetch_url: debug: ' . print_r($curl_info,true), LOGGER_DATA);
+ }
+ $ret['body'] = substr($s,strlen($header));
+ $ret['header'] = $header;
+ if(x($opts,'debug')) {
+ $ret['debug'] = $curl_info;
+ }
+ @curl_close($ch);
$a->save_timestamp($stamp1, "network");
- return($body);
-}}
+ return($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) {
$stamp1 = microtime(true);
logger("post_url: end ".$url, LOGGER_DATA);
return($body);
-}}
+}
// Generic XML return
// Outputs a basic dfrn XML status structure to STDOUT, with a <status> variable
// of $st and an optional text <message> of $message and terminates the current process.
-if(! function_exists('xml_status')) {
function xml_status($st, $message = '') {
$xml_message = ((strlen($message)) ? "\t<message>" . xmlify($message) . "</message>\r\n" : '');
echo '<?xml version="1.0" encoding="UTF-8"?>'."\r\n";
echo "<result>\r\n\t<status>$st</status>\r\n$xml_message</result>\r\n";
killme();
-}}
+}
-if(! function_exists('http_status_exit')) {
-function http_status_exit($val) {
+/**
+ * @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
+ */
- $err = '';
- if($val >= 400)
+function http_status_exit($val, $description = array()) {
+ $err = '';
+ if($val >= 400) {
$err = 'Error';
+ if (!isset($description["title"]))
+ $description["title"] = $err." ".$val;
+ }
if($val >= 200 && $val < 300)
$err = 'OK';
logger('http_status_exit ' . $val);
header($_SERVER["SERVER_PROTOCOL"] . ' ' . $val . ' ' . $err);
- killme();
-
-}}
-
-
-// convert an XML document to a normalised, case-corrected array
-// used by webfinger
-
-if(! function_exists('convert_xml_element_to_array')) {
-function convert_xml_element_to_array($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,'<xrd'))
- return array();
-
- $h = parse_xml_string($xml);
- if(! $h)
- return array();
-
- $arr = convert_xml_element_to_array($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 $links;
-
- return array();
-
-}}
-
-
-// Given a host name, locate the LRDD template from that
-// host. Returns the LRDD template or an empty string on
-// error/failure.
-
-if(! function_exists('fetch_lrdd_template')) {
-function fetch_lrdd_template($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 = $link['@attributes']['template'];
+ if (isset($description["title"])) {
+ $tpl = get_markup_template('http_status.tpl');
+ echo replace_macros($tpl, array('$title' => $description["title"],
+ '$description' => $description["description"]));
}
- if(! strpos($tpl,'{uri}'))
- $tpl = '';
- return $tpl;
-}}
-
-// Given a URL, retrieve the page as an XRD document.
-// Return an array of links.
-// on error/failure return empty array.
-
-if(! function_exists('fetch_xrd_links')) {
-function fetch_xrd_links($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();
-
- $arr = convert_xml_element_to_array($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;
-
-}}
+ killme();
-// 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;
}
return false;
-}}
-
-// checks that email is an actual resolvable internet address
+}
-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'))
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);
}
}
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) {
}
}
return $found;
-}}
-
+}
-if(! function_exists('avatar_img')) {
function avatar_img($email) {
$a = get_app();
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,'<?xml'))
return false;
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"
}
}
-
-
-/**
- * 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'));
- * $array = xml2array(file_get_contents('feed.xml', true, 1, 'attribute'));
- */
-
-function xml2array($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 '<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($type == "complete") { // Tags that ends in 1 line '<tag />'
- //See if the key is already taken.
- if(!isset($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 '</tag>'
- $current = &$parent[$level-1];
- }
- }
-
- return($xml_array);
-}
-
function original_url($url, $depth=1, $fetchbody = false) {
$a = get_app();
$a->save_timestamp($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 ($curl_info['redirect_url'] != "")
return($url);
}
-if (!function_exists('short_link')) {
function short_link($url) {
require_once('library/slinky.php');
$slinky = new Slinky($url);
$slinky->set_cascade(array(new Slinky_UR1ca(), new Slinky_Trim(), new Slinky_IsGd(), 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);
+}
projects / friendica.git / blobdiff