mirror of
https://github.com/friendica/friendica
synced 2024-11-09 23:02:54 +00:00
We are now probing differently for webfinger data
This commit is contained in:
Michael
parent
2bf6b15833
commit
78d4386332
1 changed files with 51 additions and 61 deletions
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@ -83,16 +83,13 @@ class Probe {
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}
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/**
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* @brief Probes for XRD data
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* @brief Probes for webfinger path via "host-meta"
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*
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* @param string $host The host part of an url
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*
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* @return array
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* 'lrdd' => Link to LRDD endpoint
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* 'lrdd-xml' => Link to LRDD endpoint in XML format
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* 'lrdd-json' => Link to LRDD endpoint in JSON format
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* @return array with template and type of the webfinger template for JSON or XML
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*/
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private static function xrd($host) {
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private static function hostMeta($host) {
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// Reset the static variable
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self::$baseurl = '';
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@ -109,6 +106,7 @@ class Probe {
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if ($ret['success']) {
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$xml = $ret['body'];
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$xrd = parse_xml_string($xml, false);
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$host_url = 'https://'.$host;
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}
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if (!is_object($xrd)) {
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@ -119,6 +117,7 @@ class Probe {
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}
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$xml = $ret['body'];
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$xrd = parse_xml_string($xml, false);
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$host_url = 'http://'.$host;
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}
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if (!is_object($xrd)) {
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logger("No xrd object found for ".$host, LOGGER_DEBUG);
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@ -131,7 +130,11 @@ class Probe {
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return array();
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}
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$xrd_data = array();
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$lrdd = array();
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// The following webfinger path is defined in RFC 7033 https://tools.ietf.org/html/rfc7033
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// Problem is that Hubzilla currently doesn't provide all data in the JSON webfinger
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// compared to the XML webfinger. So this is commented out by now.
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// $lrdd = array("application/jrd+json" => $host_url.'/.well-known/webfinger?resource={uri}');
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foreach ($links["xrd"]["link"] as $value => $link) {
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if (!empty($link["@attributes"])) {
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@ -142,16 +145,10 @@ class Probe {
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continue;
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}
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if (($attributes["rel"] == "lrdd")
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&& ($attributes["type"] == "application/xrd+xml")
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) {
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$xrd_data["lrdd-xml"] = $attributes["template"];
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} elseif (($attributes["rel"] == "lrdd")
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&& ($attributes["type"] == "application/json")
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) {
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$xrd_data["lrdd-json"] = $attributes["template"];
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} elseif ($attributes["rel"] == "lrdd") {
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$xrd_data["lrdd"] = $attributes["template"];
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if (($attributes["rel"] == "lrdd") && !empty($attributes["template"])) {
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$type = (empty($attributes["type"]) ? '' : $attributes["type"]);
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$lrdd[$type] = $attributes["template"];
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}
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}
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@ -159,7 +156,7 @@ class Probe {
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logger("Probing successful for ".$host, LOGGER_DEBUG);
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return $xrd_data;
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return $lrdd;
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}
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/**
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@ -217,7 +214,7 @@ class Probe {
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*/
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public static function lrdd($uri) {
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$lrdd = self::xrd($uri);
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$lrdd = self::hostMeta($uri);
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$webfinger = null;
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if (is_bool($lrdd)) {
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@ -240,7 +237,7 @@ class Probe {
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$nick = array_pop($path_parts);
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do {
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$lrdd = self::xrd($host);
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$lrdd = self::hostMeta($host);
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$host .= "/".array_shift($path_parts);
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} while (!$lrdd && (sizeof($path_parts) > 0));
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}
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@ -250,21 +247,17 @@ class Probe {
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return array();
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}
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foreach ($lrdd as $key => $link) {
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foreach ($lrdd AS $type => $template) {
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if ($webfinger) {
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continue;
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}
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if (!in_array($key, array("lrdd", "lrdd-xml", "lrdd-json"))) {
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continue;
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}
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$path = str_replace('{uri}', urlencode($uri), $link);
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$webfinger = self::webfinger($path);
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$path = str_replace('{uri}', urlencode($uri), $template);
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$webfinger = self::webfinger($path, $type);
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if (!$webfinger && (strstr($uri, "@"))) {
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$path = str_replace('{uri}', urlencode("acct:".$uri), $link);
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$webfinger = self::webfinger($path);
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$path = str_replace('{uri}', urlencode("acct:".$uri), $template);
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$webfinger = self::webfinger($path, $type);
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}
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// Special treatment for Mastodon
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@ -276,8 +269,8 @@ class Probe {
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$addr = $nick."@".$host;
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$path = str_replace('{uri}', urlencode("acct:".$addr), $link);
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$webfinger = self::webfinger($path);
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$path = str_replace('{uri}', urlencode("acct:".$addr), $template);
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$webfinger = self::webfinger($path, $type);
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}
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}
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@ -481,7 +474,7 @@ class Probe {
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*
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* @return array fixed webfinger data
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*/
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private static function fixOstatus($webfinger, $lrdd) {
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private static function fixOstatus($webfinger, $lrdd, $type) {
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if (empty($webfinger['links']) || empty($webfinger['subject'])) {
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return $webfinger;
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}
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@ -504,7 +497,7 @@ class Probe {
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$url = self::switchScheme($webfinger['subject']);
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$path = str_replace('{uri}', urlencode($url), $lrdd);
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$webfinger2 = self::webfinger($path);
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$webfinger2 = self::webfinger($path, $type);
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// Is the new webfinger detectable as OStatus?
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if (self::ostatus($webfinger2, true)) {
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@ -537,7 +530,7 @@ class Probe {
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if ($host == 'twitter.com') {
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return array("network" => NETWORK_TWITTER);
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}
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$lrdd = self::xrd($host);
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$lrdd = self::hostMeta($host);
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if (is_bool($lrdd)) {
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return array();
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@ -547,7 +540,7 @@ class Probe {
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while (!$lrdd && (sizeof($path_parts) > 1)) {
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$host .= "/".array_shift($path_parts);
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$lrdd = self::xrd($host);
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$lrdd = self::hostMeta($host);
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}
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if (!$lrdd) {
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logger('No XRD data was found for '.$uri, LOGGER_DEBUG);
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@ -579,7 +572,7 @@ class Probe {
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if (strpos($uri, '@twitter.com')) {
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return array("network" => NETWORK_TWITTER);
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}
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$lrdd = self::xrd($host);
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$lrdd = self::hostMeta($host);
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if (is_bool($lrdd)) {
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return array();
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@ -600,19 +593,17 @@ class Probe {
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/// @todo Do we need the prefix "acct:" or "acct://"?
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foreach ($lrdd as $key => $link) {
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foreach ($lrdd AS $type => $template) {
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if ($webfinger) {
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continue;
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}
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if (!in_array($key, array("lrdd", "lrdd-xml", "lrdd-json"))) {
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continue;
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}
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// At first try it with the given uri
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$path = str_replace('{uri}', urlencode($uri), $link);
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$webfinger = self::webfinger($path);
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$path = str_replace('{uri}', urlencode($uri), $template);
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$webfinger = self::webfinger($path, $type);
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// Fix possible problems with GNU Social probing to wrong scheme
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$webfinger = self::fixOstatus($webfinger, $link);
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$webfinger = self::fixOstatus($webfinger, $template, $type);
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// We cannot be sure that the detected address was correct, so we don't use the values
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if ($webfinger && ($uri != $addr)) {
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@ -622,16 +613,17 @@ class Probe {
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// Try webfinger with the address (user@domain.tld)
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if (!$webfinger) {
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$path = str_replace('{uri}', urlencode($addr), $link);
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$webfinger = self::webfinger($path);
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$path = str_replace('{uri}', urlencode($addr), $template);
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$webfinger = self::webfinger($path, $type);
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}
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// Mastodon needs to have it with "acct:"
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if (!$webfinger) {
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$path = str_replace('{uri}', urlencode("acct:".$addr), $link);
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$webfinger = self::webfinger($path);
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$path = str_replace('{uri}', urlencode("acct:".$addr), $template);
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$webfinger = self::webfinger($path, $type);
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}
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}
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if (!$webfinger) {
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return self::feed($uri);
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}
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@ -687,35 +679,33 @@ class Probe {
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*
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* @return array webfinger data
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*/
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private static function webfinger($url) {
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private static function webfinger($url, $type) {
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$xrd_timeout = Config::get('system', 'xrd_timeout', 20);
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$redirects = 0;
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$ret = z_fetch_url($url, false, $redirects, array('timeout' => $xrd_timeout, 'accept_content' => 'application/xrd+xml'));
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$ret = z_fetch_url($url, false, $redirects, array('timeout' => $xrd_timeout, 'accept_content' => $type));
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if ($ret['errno'] == CURLE_OPERATION_TIMEDOUT) {
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return false;
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}
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$data = $ret['body'];
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// This is a bugfix for this issue: https://github.com/redmatrix/hubzilla/issues/851
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// $data = str_replace('&url=', '&url=', $data);
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// we have to decide if we want to create a workaround - or we wait for an update
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$xrd = parse_xml_string($data, false);
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if (!is_object($xrd)) {
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// If it is not XML, maybe it is JSON
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$webfinger = json_decode($data, true);
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if (is_array($webfinger)) {
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if (!isset($webfinger["links"])) {
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logger("No json webfinger links for ".$url, LOGGER_DEBUG);
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return false;
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}
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return $webfinger;
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}
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// If it is not JSON, maybe it is XML
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$xrd = parse_xml_string($data, false);
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if (!is_object($xrd)) {
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logger("No webfinger data retrievable for ".$url, LOGGER_DEBUG);
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return false;
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}
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$xrd_arr = xml::element_to_array($xrd);
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if (!isset($xrd_arr["xrd"]["link"])) {
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logger("No XML webfinger links for ".$url, LOGGER_DEBUG);
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