<?php
use Friendica\App;
+use Friendica\Network\Probe;
// Included here for completeness, but this is a very dangerous operation.
// It is the caller's responsibility to confirm the requestor's intent and
dbesc($addr));
if (!dbm::is_result($r)) {
- require_once('include/Probe.php');
$data = Probe::uri($addr);
$profile = get_contact_details_by_url($data['url'], $uid);
return 0;
}
- require_once('include/Probe.php');
$data = Probe::uri($url);
// Last try in gcontact for unsupported networks
+++ /dev/null
-<?php
-/**
- * @file include/Probe.php
- * @brief Functions for probing URL
- *
- */
-
-use Friendica\App;
-use Friendica\Core\Config;
-use Friendica\Core\PConfig;
-
-require_once("include/feed.php");
-require_once('include/email.php');
-require_once('include/network.php');
-
-/**
- * @brief This class contain functions for probing URL
- *
- */
-class Probe {
-
- private static $baseurl;
-
- /**
- * @brief Rearrange the array so that it always has the same order
- *
- * @param array $data Unordered data
- *
- * @return array Ordered data
- */
- private function rearrange_data($data) {
- $fields = array("name", "nick", "guid", "url", "addr", "alias",
- "photo", "community", "keywords", "location", "about",
- "batch", "notify", "poll", "request", "confirm", "poco",
- "priority", "network", "pubkey", "baseurl");
-
- $newdata = array();
- foreach ($fields AS $field)
- if (isset($data[$field]))
- $newdata[$field] = $data[$field];
- else
- $newdata[$field] = "";
-
- // We don't use the "priority" field anymore and replace it with a dummy.
- $newdata["priority"] = 0;
-
- return $newdata;
- }
-
- /**
- * @brief Probes for XRD data
- *
- * @return array
- * 'lrdd' => Link to LRDD endpoint
- * 'lrdd-xml' => Link to LRDD endpoint in XML format
- * 'lrdd-json' => Link to LRDD endpoint in JSON format
- */
- private function xrd($host) {
-
- // Reset the static variable
- self::$baseurl = '';
-
- $ssl_url = "https://".$host."/.well-known/host-meta";
- $url = "http://".$host."/.well-known/host-meta";
-
- $xrd_timeout = Config::get('system','xrd_timeout', 20);
- $redirects = 0;
-
- $ret = z_fetch_url($ssl_url, false, $redirects, array('timeout' => $xrd_timeout, 'accept_content' => 'application/xrd+xml'));
- if ($ret['errno'] == CURLE_OPERATION_TIMEDOUT) {
- return false;
- }
- $xml = $ret['body'];
-
- $xrd = parse_xml_string($xml, false);
-
- if (!is_object($xrd)) {
- $ret = z_fetch_url($url, false, $redirects, array('timeout' => $xrd_timeout, 'accept_content' => 'application/xrd+xml'));
- if ($ret['errno'] == CURLE_OPERATION_TIMEDOUT) {
- return false;
- }
- $xml = $ret['body'];
- $xrd = parse_xml_string($xml, false);
- }
- if (!is_object($xrd))
- return false;
-
- $links = xml::element_to_array($xrd);
- if (!isset($links["xrd"]["link"]))
- return false;
-
- $xrd_data = array();
-
- foreach ($links["xrd"]["link"] AS $value => $link) {
- if (isset($link["@attributes"]))
- $attributes = $link["@attributes"];
- elseif ($value == "@attributes")
- $attributes = $link;
- else
- continue;
-
- if (($attributes["rel"] == "lrdd") AND
- ($attributes["type"] == "application/xrd+xml"))
- $xrd_data["lrdd-xml"] = $attributes["template"];
- elseif (($attributes["rel"] == "lrdd") AND
- ($attributes["type"] == "application/json"))
- $xrd_data["lrdd-json"] = $attributes["template"];
- elseif ($attributes["rel"] == "lrdd")
- $xrd_data["lrdd"] = $attributes["template"];
- }
-
- self::$baseurl = "http://".$host;
-
- return $xrd_data;
- }
-
- /**
- * @brief Perform Webfinger lookup and return DFRN data
- *
- * 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
- *
- * @param string $webbie Address that should be probed
- * @param string $hcard Link to the hcard - is returned by reference
- *
- * @return string profile link
- */
-
- public static function webfinger_dfrn($webbie, &$hcard) {
-
- $profile_link = '';
-
- $links = self::lrdd($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) AND ($profile_link == ""))
- $profile_link = 'stat:'.$link['@attributes']['template'];
- if ($link['@attributes']['rel'] === 'http://microformats.org/profile/hcard')
- $hcard = $link['@attributes']['href'];
- }
- }
- return $profile_link;
- }
-
- /**
- * @brief Check an URI for LRDD data
- *
- * this is a replacement for the "lrdd" function in include/network.php.
- * It isn't used in this class and has some redundancies in the code.
- * When time comes we can check the existing calls for "lrdd" if we can rework them.
- *
- * @param string $uri Address that should be probed
- *
- * @return array uri data
- */
- public static function lrdd($uri) {
-
- $lrdd = self::xrd($uri);
-
- if (!$lrdd) {
- $parts = @parse_url($uri);
- if (!$parts)
- return array();
-
- $host = $parts["host"];
- if (isset($parts["port"])) {
- $host .= ':'.$parts["port"];
- }
-
- $path_parts = explode("/", trim($parts["path"], "/"));
-
- $nick = array_pop($path_parts);
-
- do {
- $lrdd = self::xrd($host);
- $host .= "/".array_shift($path_parts);
- } while (!$lrdd AND (sizeof($path_parts) > 0));
- }
-
- if (!$lrdd)
- return array();
-
- foreach ($lrdd AS $key => $link) {
- if ($webfinger)
- continue;
-
- if (!in_array($key, array("lrdd", "lrdd-xml", "lrdd-json")))
- continue;
-
- $path = str_replace('{uri}', urlencode($uri), $link);
- $webfinger = self::webfinger($path);
-
- if (!$webfinger AND (strstr($uri, "@"))) {
- $path = str_replace('{uri}', urlencode("acct:".$uri), $link);
- $webfinger = self::webfinger($path);
- }
-
- // Special treatment for Mastodon
- // Problem is that Mastodon uses an URL format like http://domain.tld/@nick
- // But the webfinger for this format fails.
- if (!$webfinger AND isset($nick)) {
- // Mastodon uses a "@" as prefix for usernames in their url format
- $nick = ltrim($nick, '@');
-
- $addr = $nick."@".$host;
-
- $path = str_replace('{uri}', urlencode("acct:".$addr), $link);
- $webfinger = self::webfinger($path);
- }
- }
-
- if (!is_array($webfinger["links"]))
- return false;
-
- $data = array();
-
- foreach ($webfinger["links"] AS $link)
- $data[] = array("@attributes" => $link);
-
- if (is_array($webfinger["aliases"]))
- foreach ($webfinger["aliases"] AS $alias)
- $data[] = array("@attributes" =>
- array("rel" => "alias",
- "href" => $alias));
-
- return $data;
- }
-
- /**
- * @brief Fetch information (protocol endpoints and user information) about a given uri
- *
- * @param string $uri Address that should be probed
- * @param string $network Test for this specific network
- * @param integer $uid User ID for the probe (only used for mails)
- * @param boolean $cache Use cached values?
- *
- * @return array uri data
- */
- public static function uri($uri, $network = "", $uid = 0, $cache = true) {
-
- if ($cache) {
- $result = Cache::get("probe_url:".$network.":".$uri);
- if (!is_null($result)) {
- return $result;
- }
- }
-
- if ($uid == 0)
- $uid = local_user();
-
- $data = self::detect($uri, $network, $uid);
-
- if (!isset($data["url"]))
- $data["url"] = $uri;
-
- if ($data["photo"] != "")
- $data["baseurl"] = matching_url(normalise_link($data["baseurl"]), normalise_link($data["photo"]));
- else
- $data["photo"] = App::get_baseurl().'/images/person-175.jpg';
-
- if (!isset($data["name"]) OR ($data["name"] == "")) {
- if (isset($data["nick"]))
- $data["name"] = $data["nick"];
-
- if ($data["name"] == "")
- $data["name"] = $data["url"];
- }
-
- if (!isset($data["nick"]) OR ($data["nick"] == "")) {
- $data["nick"] = strtolower($data["name"]);
-
- if (strpos($data['nick'], ' '))
- $data['nick'] = trim(substr($data['nick'], 0, strpos($data['nick'], ' ')));
- }
-
- if (self::$baseurl != "") {
- $data["baseurl"] = self::$baseurl;
- }
-
- if (!isset($data["network"])) {
- $data["network"] = NETWORK_PHANTOM;
- }
-
- $data = self::rearrange_data($data);
-
- // Only store into the cache if the value seems to be valid
- if (!in_array($data['network'], array(NETWORK_PHANTOM, NETWORK_MAIL))) {
- Cache::set("probe_url:".$network.":".$uri, $data, CACHE_DAY);
-
- /// @todo temporary fix - we need a real contact update function that updates only changing fields
- /// The biggest problem is the avatar picture that could have a reduced image size.
- /// It should only be updated if the existing picture isn't existing anymore.
- if (($data['network'] != NETWORK_FEED) AND ($mode == PROBE_NORMAL) AND
- $data["name"] AND $data["nick"] AND $data["url"] AND $data["addr"] AND $data["poll"])
- q("UPDATE `contact` SET `name` = '%s', `nick` = '%s', `url` = '%s', `addr` = '%s',
- `notify` = '%s', `poll` = '%s', `alias` = '%s', `success_update` = '%s'
- WHERE `nurl` = '%s' AND NOT `self` AND `uid` = 0",
- dbesc($data["name"]),
- dbesc($data["nick"]),
- dbesc($data["url"]),
- dbesc($data["addr"]),
- dbesc($data["notify"]),
- dbesc($data["poll"]),
- dbesc($data["alias"]),
- dbesc(datetime_convert()),
- dbesc(normalise_link($data['url']))
- );
- }
-
- return $data;
- }
-
- /**
- * @brief Fetch information (protocol endpoints and user information) about a given uri
- *
- * This function is only called by the "uri" function that adds caching and rearranging of data.
- *
- * @param string $uri Address that should be probed
- * @param string $network Test for this specific network
- * @param integer $uid User ID for the probe (only used for mails)
- *
- * @return array uri data
- */
- private function detect($uri, $network, $uid) {
- $parts = parse_url($uri);
-
- if (isset($parts["scheme"]) AND isset($parts["host"]) AND isset($parts["path"])) {
-
- $host = $parts["host"];
- if (isset($parts["port"])) {
- $host .= ':'.$parts["port"];
- }
-
- if ($host == 'twitter.com') {
- return array("network" => NETWORK_TWITTER);
- }
- $lrdd = self::xrd($host);
-
- $path_parts = explode("/", trim($parts["path"], "/"));
-
- while (!$lrdd AND (sizeof($path_parts) > 1)) {
- $host .= "/".array_shift($path_parts);
- $lrdd = self::xrd($host);
- }
- if (!$lrdd) {
- return self::feed($uri);
- }
- $nick = array_pop($path_parts);
-
- // Mastodon uses a "@" as prefix for usernames in their url format
- $nick = ltrim($nick, '@');
-
- $addr = $nick."@".$host;
- } elseif (strstr($uri, '@')) {
- // If the URI starts with "mailto:" then jump directly to the mail detection
- if (strpos($url,'mailto:') !== false) {
- $uri = str_replace('mailto:', '', $url);
- return self::mail($uri, $uid);
- }
-
- if ($network == NETWORK_MAIL) {
- return self::mail($uri, $uid);
- }
- // Remove "acct:" from the URI
- $uri = str_replace('acct:', '', $uri);
-
- $host = substr($uri,strpos($uri, '@') + 1);
- $nick = substr($uri,0, strpos($uri, '@'));
-
- if (strpos($uri, '@twitter.com')) {
- return array("network" => NETWORK_TWITTER);
- }
- $lrdd = self::xrd($host);
-
- if (!$lrdd) {
- return self::mail($uri, $uid);
- }
- $addr = $uri;
- } else {
- return false;
- }
-
- $webfinger = false;
-
- /// @todo Do we need the prefix "acct:" or "acct://"?
-
- foreach ($lrdd AS $key => $link) {
- if ($webfinger) {
- continue;
- }
- if (!in_array($key, array("lrdd", "lrdd-xml", "lrdd-json"))) {
- continue;
- }
- // At first try it with the given uri
- $path = str_replace('{uri}', urlencode($uri), $link);
- $webfinger = self::webfinger($path);
-
- // We cannot be sure that the detected address was correct, so we don't use the values
- if ($webfinger AND ($uri != $addr)) {
- $nick = "";
- $addr = "";
- }
-
- // Try webfinger with the address (user@domain.tld)
- if (!$webfinger) {
- $path = str_replace('{uri}', urlencode($addr), $link);
- $webfinger = self::webfinger($path);
- }
-
- // Mastodon needs to have it with "acct:"
- if (!$webfinger) {
- $path = str_replace('{uri}', urlencode("acct:".$addr), $link);
- $webfinger = self::webfinger($path);
- }
- }
- if (!$webfinger) {
- return self::feed($uri);
- }
-
- $result = false;
-
- logger("Probing ".$uri, LOGGER_DEBUG);
-
- if (in_array($network, array("", NETWORK_DFRN)))
- $result = self::dfrn($webfinger);
- if ((!$result AND ($network == "")) OR ($network == NETWORK_DIASPORA))
- $result = self::diaspora($webfinger);
- if ((!$result AND ($network == "")) OR ($network == NETWORK_OSTATUS))
- $result = self::ostatus($webfinger);
- if ((!$result AND ($network == "")) OR ($network == NETWORK_PUMPIO))
- $result = self::pumpio($webfinger);
- if ((!$result AND ($network == "")) OR ($network == NETWORK_FEED))
- $result = self::feed($uri);
- else {
- // We overwrite the detected nick with our try if the previois routines hadn't detected it.
- // Additionally it is overwritten when the nickname doesn't make sense (contains spaces).
- if ((!isset($result["nick"]) OR ($result["nick"] == "") OR (strstr($result["nick"], " "))) AND ($nick != ""))
- $result["nick"] = $nick;
-
- if ((!isset($result["addr"]) OR ($result["addr"] == "")) AND ($addr != ""))
- $result["addr"] = $addr;
- }
-
- logger($uri." is ".$result["network"], LOGGER_DEBUG);
-
- if (!isset($result["baseurl"]) OR ($result["baseurl"] == "")) {
- $pos = strpos($result["url"], $host);
- if ($pos)
- $result["baseurl"] = substr($result["url"], 0, $pos).$host;
- }
-
- return $result;
- }
-
- /**
- * @brief Perform a webfinger request.
- *
- * For details see RFC 7033: <https://tools.ietf.org/html/rfc7033>
- *
- * @param string $url Address that should be probed
- *
- * @return array webfinger data
- */
- private function webfinger($url) {
-
- $xrd_timeout = Config::get('system','xrd_timeout', 20);
- $redirects = 0;
-
- $ret = z_fetch_url($url, false, $redirects, array('timeout' => $xrd_timeout, 'accept_content' => 'application/xrd+xml'));
- if ($ret['errno'] == CURLE_OPERATION_TIMEDOUT) {
- return false;
- }
- $data = $ret['body'];
-
- $xrd = parse_xml_string($data, false);
-
- if (!is_object($xrd)) {
- // If it is not XML, maybe it is JSON
- $webfinger = json_decode($data, true);
-
- if (!isset($webfinger["links"]))
- return false;
-
- return $webfinger;
- }
-
- $xrd_arr = xml::element_to_array($xrd);
- if (!isset($xrd_arr["xrd"]["link"]))
- return false;
-
- $webfinger = array();
-
- if (isset($xrd_arr["xrd"]["subject"]))
- $webfinger["subject"] = $xrd_arr["xrd"]["subject"];
-
- if (isset($xrd_arr["xrd"]["alias"]))
- $webfinger["aliases"] = $xrd_arr["xrd"]["alias"];
-
- $webfinger["links"] = array();
-
- foreach ($xrd_arr["xrd"]["link"] AS $value => $data) {
- if (isset($data["@attributes"]))
- $attributes = $data["@attributes"];
- elseif ($value == "@attributes")
- $attributes = $data;
- else
- continue;
-
- $webfinger["links"][] = $attributes;
- }
- return $webfinger;
- }
-
- /**
- * @brief Poll the Friendica specific noscrape page.
- *
- * "noscrape" is a faster alternative to fetch the data from the hcard.
- * This functionality was originally created for the directory.
- *
- * @param string $noscrape Link to the noscrape page
- * @param array $data The already fetched data
- *
- * @return array noscrape data
- */
- private function poll_noscrape($noscrape, $data) {
- $ret = z_fetch_url($noscrape);
- if ($ret['errno'] == CURLE_OPERATION_TIMEDOUT) {
- return false;
- }
- $content = $ret['body'];
- if (!$content) {
- return false;
- }
-
- $json = json_decode($content, true);
- if (!is_array($json))
- return false;
-
- if (isset($json["fn"]))
- $data["name"] = $json["fn"];
-
- if (isset($json["addr"]))
- $data["addr"] = $json["addr"];
-
- if (isset($json["nick"]))
- $data["nick"] = $json["nick"];
-
- if (isset($json["comm"]))
- $data["community"] = $json["comm"];
-
- if (isset($json["tags"])) {
- $keywords = implode(" ", $json["tags"]);
- if ($keywords != "")
- $data["keywords"] = $keywords;
- }
-
- $location = formatted_location($json);
- if ($location)
- $data["location"] = $location;
-
- if (isset($json["about"]))
- $data["about"] = $json["about"];
-
- if (isset($json["key"]))
- $data["pubkey"] = $json["key"];
-
- if (isset($json["photo"]))
- $data["photo"] = $json["photo"];
-
- if (isset($json["dfrn-request"]))
- $data["request"] = $json["dfrn-request"];
-
- if (isset($json["dfrn-confirm"]))
- $data["confirm"] = $json["dfrn-confirm"];
-
- if (isset($json["dfrn-notify"]))
- $data["notify"] = $json["dfrn-notify"];
-
- if (isset($json["dfrn-poll"]))
- $data["poll"] = $json["dfrn-poll"];
-
- return $data;
- }
-
- /**
- * @brief Check for valid DFRN data
- *
- * @param array $data DFRN data
- *
- * @return int Number of errors
- */
- public static function valid_dfrn($data) {
- $errors = 0;
- if(!isset($data['key']))
- $errors ++;
- if(!isset($data['dfrn-request']))
- $errors ++;
- if(!isset($data['dfrn-confirm']))
- $errors ++;
- if(!isset($data['dfrn-notify']))
- $errors ++;
- if(!isset($data['dfrn-poll']))
- $errors ++;
- return $errors;
- }
-
- /**
- * @brief Fetch data from a DFRN profile page and via "noscrape"
- *
- * @param string $profile Link to the profile page
- *
- * @return array profile data
- */
- public static function profile($profile) {
-
- $data = array();
-
- logger("Check profile ".$profile, LOGGER_DEBUG);
-
- // Fetch data via noscrape - this is faster
- $noscrape = str_replace(array("/hcard/", "/profile/"), "/noscrape/", $profile);
- $data = self::poll_noscrape($noscrape, $data);
-
- if (!isset($data["notify"]) OR !isset($data["confirm"]) OR
- !isset($data["request"]) OR !isset($data["poll"]) OR
- !isset($data["poco"]) OR !isset($data["name"]) OR
- !isset($data["photo"]))
- $data = self::poll_hcard($profile, $data, true);
-
- $prof_data = array();
- $prof_data["addr"] = $data["addr"];
- $prof_data["nick"] = $data["nick"];
- $prof_data["dfrn-request"] = $data["request"];
- $prof_data["dfrn-confirm"] = $data["confirm"];
- $prof_data["dfrn-notify"] = $data["notify"];
- $prof_data["dfrn-poll"] = $data["poll"];
- $prof_data["dfrn-poco"] = $data["poco"];
- $prof_data["photo"] = $data["photo"];
- $prof_data["fn"] = $data["name"];
- $prof_data["key"] = $data["pubkey"];
-
- logger("Result for profile ".$profile.": ".print_r($prof_data, true), LOGGER_DEBUG);
-
- return $prof_data;
- }
-
- /**
- * @brief Check for DFRN contact
- *
- * @param array $webfinger Webfinger data
- *
- * @return array DFRN data
- */
- private function dfrn($webfinger) {
-
- $hcard = "";
- $data = array();
- foreach ($webfinger["links"] AS $link) {
- if (($link["rel"] == NAMESPACE_DFRN) AND ($link["href"] != ""))
- $data["network"] = NETWORK_DFRN;
- elseif (($link["rel"] == NAMESPACE_FEED) AND ($link["href"] != ""))
- $data["poll"] = $link["href"];
- elseif (($link["rel"] == "http://webfinger.net/rel/profile-page") AND
- ($link["type"] == "text/html") AND ($link["href"] != ""))
- $data["url"] = $link["href"];
- elseif (($link["rel"] == "http://microformats.org/profile/hcard") AND ($link["href"] != ""))
- $hcard = $link["href"];
- elseif (($link["rel"] == NAMESPACE_POCO) AND ($link["href"] != ""))
- $data["poco"] = $link["href"];
- elseif (($link["rel"] == "http://webfinger.net/rel/avatar") AND ($link["href"] != ""))
- $data["photo"] = $link["href"];
-
- elseif (($link["rel"] == "http://joindiaspora.com/seed_location") AND ($link["href"] != ""))
- $data["baseurl"] = trim($link["href"], '/');
- elseif (($link["rel"] == "http://joindiaspora.com/guid") AND ($link["href"] != ""))
- $data["guid"] = $link["href"];
- elseif (($link["rel"] == "diaspora-public-key") AND ($link["href"] != "")) {
- $data["pubkey"] = base64_decode($link["href"]);
-
- //if (strstr($data["pubkey"], 'RSA ') OR ($link["type"] == "RSA"))
- if (strstr($data["pubkey"], 'RSA '))
- $data["pubkey"] = rsatopem($data["pubkey"]);
- }
- }
-
- if (!isset($data["network"]) OR ($hcard == ""))
- return false;
-
- // Fetch data via noscrape - this is faster
- $noscrape = str_replace("/hcard/", "/noscrape/", $hcard);
- $data = self::poll_noscrape($noscrape, $data);
-
- if (isset($data["notify"]) AND isset($data["confirm"]) AND isset($data["request"]) AND
- isset($data["poll"]) AND isset($data["name"]) AND isset($data["photo"]))
- return $data;
-
- $data = self::poll_hcard($hcard, $data, true);
-
- return $data;
- }
-
- /**
- * @brief Poll the hcard page (Diaspora and Friendica specific)
- *
- * @param string $hcard Link to the hcard page
- * @param array $data The already fetched data
- * @param boolean $dfrn Poll DFRN specific data
- *
- * @return array hcard data
- */
- private function poll_hcard($hcard, $data, $dfrn = false) {
- $ret = z_fetch_url($hcard);
- if ($ret['errno'] == CURLE_OPERATION_TIMEDOUT) {
- return false;
- }
- $content = $ret['body'];
- if (!$content) {
- return false;
- }
-
- $doc = new DOMDocument();
- if (!@$doc->loadHTML($content))
- return false;
-
- $xpath = new DomXPath($doc);
-
- $vcards = $xpath->query("//div[contains(concat(' ', @class, ' '), ' vcard ')]");
- if (!is_object($vcards))
- return false;
-
- if ($vcards->length > 0) {
- $vcard = $vcards->item(0);
-
- // We have to discard the guid from the hcard in favour of the guid from lrdd
- // Reason: Hubzilla doesn't use the value "uid" in the hcard like Diaspora does.
- $search = $xpath->query("//*[contains(concat(' ', @class, ' '), ' uid ')]", $vcard); // */
- if (($search->length > 0) AND ($data["guid"] == ""))
- $data["guid"] = $search->item(0)->nodeValue;
-
- $search = $xpath->query("//*[contains(concat(' ', @class, ' '), ' nickname ')]", $vcard); // */
- if ($search->length > 0)
- $data["nick"] = $search->item(0)->nodeValue;
-
- $search = $xpath->query("//*[contains(concat(' ', @class, ' '), ' fn ')]", $vcard); // */
- if ($search->length > 0)
- $data["name"] = $search->item(0)->nodeValue;
-
- $search = $xpath->query("//*[contains(concat(' ', @class, ' '), ' searchable ')]", $vcard); // */
- if ($search->length > 0)
- $data["searchable"] = $search->item(0)->nodeValue;
-
- $search = $xpath->query("//*[contains(concat(' ', @class, ' '), ' key ')]", $vcard); // */
- if ($search->length > 0) {
- $data["pubkey"] = $search->item(0)->nodeValue;
- if (strstr($data["pubkey"], 'RSA '))
- $data["pubkey"] = rsatopem($data["pubkey"]);
- }
-
- $search = $xpath->query("//*[@id='pod_location']", $vcard); // */
- if ($search->length > 0)
- $data["baseurl"] = trim($search->item(0)->nodeValue, "/");
- }
-
- $avatar = array();
- $photos = $xpath->query("//*[contains(concat(' ', @class, ' '), ' photo ') or contains(concat(' ', @class, ' '), ' avatar ')]", $vcard); // */
- foreach ($photos AS $photo) {
- $attr = array();
- foreach ($photo->attributes as $attribute) {
- $attr[$attribute->name] = trim($attribute->value);
- }
-
- if (isset($attr["src"]) AND isset($attr["width"])) {
- $avatar[$attr["width"]] = $attr["src"];
- }
-
- // We don't have a width. So we just take everything that we got.
- // This is a Hubzilla workaround which doesn't send a width.
- if ((sizeof($avatar) == 0) AND isset($attr["src"])) {
- $avatar[] = $attr["src"];
- }
- }
-
- if (sizeof($avatar)) {
- ksort($avatar);
- $data["photo"] = self::fix_avatar(array_pop($avatar), $data["baseurl"]);
- }
-
- if ($dfrn) {
- // Poll DFRN specific data
- $search = $xpath->query("//link[contains(concat(' ', @rel), ' dfrn-')]");
- if ($search->length > 0) {
- foreach ($search AS $link) {
- //$data["request"] = $search->item(0)->nodeValue;
- $attr = array();
- foreach ($link->attributes as $attribute)
- $attr[$attribute->name] = trim($attribute->value);
-
- $data[substr($attr["rel"], 5)] = $attr["href"];
- }
- }
-
- // Older Friendica versions had used the "uid" field differently than newer versions
- if ($data["nick"] == $data["guid"])
- unset($data["guid"]);
- }
-
-
- return $data;
- }
-
- /**
- * @brief Check for Diaspora contact
- *
- * @param array $webfinger Webfinger data
- *
- * @return array Diaspora data
- */
- private function diaspora($webfinger) {
-
- $hcard = "";
- $data = array();
- foreach ($webfinger["links"] AS $link) {
- if (($link["rel"] == "http://microformats.org/profile/hcard") AND ($link["href"] != ""))
- $hcard = $link["href"];
- elseif (($link["rel"] == "http://joindiaspora.com/seed_location") AND ($link["href"] != ""))
- $data["baseurl"] = trim($link["href"], '/');
- elseif (($link["rel"] == "http://joindiaspora.com/guid") AND ($link["href"] != ""))
- $data["guid"] = $link["href"];
- elseif (($link["rel"] == "http://webfinger.net/rel/profile-page") AND
- ($link["type"] == "text/html") AND ($link["href"] != ""))
- $data["url"] = $link["href"];
- elseif (($link["rel"] == NAMESPACE_FEED) AND ($link["href"] != ""))
- $data["poll"] = $link["href"];
- elseif (($link["rel"] == NAMESPACE_POCO) AND ($link["href"] != ""))
- $data["poco"] = $link["href"];
- elseif (($link["rel"] == "salmon") AND ($link["href"] != ""))
- $data["notify"] = $link["href"];
- elseif (($link["rel"] == "diaspora-public-key") AND ($link["href"] != "")) {
- $data["pubkey"] = base64_decode($link["href"]);
-
- //if (strstr($data["pubkey"], 'RSA ') OR ($link["type"] == "RSA"))
- if (strstr($data["pubkey"], 'RSA '))
- $data["pubkey"] = rsatopem($data["pubkey"]);
- }
- }
-
- if (!isset($data["url"]) OR ($hcard == ""))
- return false;
-
- if (is_array($webfinger["aliases"]))
- foreach ($webfinger["aliases"] AS $alias)
- if (normalise_link($alias) != normalise_link($data["url"]) AND !strstr($alias, "@"))
- $data["alias"] = $alias;
-
- // Fetch further information from the hcard
- $data = self::poll_hcard($hcard, $data);
-
- if (!$data)
- return false;
-
- if (isset($data["url"]) AND isset($data["guid"]) AND isset($data["baseurl"]) AND
- isset($data["pubkey"]) AND ($hcard != "")) {
- $data["network"] = NETWORK_DIASPORA;
-
- // The Diaspora handle must always be lowercase
- $data["addr"] = strtolower($data["addr"]);
-
- // We have to overwrite the detected value for "notify" since Hubzilla doesn't send it
- $data["notify"] = $data["baseurl"]."/receive/users/".$data["guid"];
- $data["batch"] = $data["baseurl"]."/receive/public";
- } else
- return false;
-
- return $data;
- }
-
- /**
- * @brief Check for OStatus contact
- *
- * @param array $webfinger Webfinger data
- *
- * @return array OStatus data
- */
- private function ostatus($webfinger) {
- $data = array();
- if (is_array($webfinger["aliases"])) {
- foreach ($webfinger["aliases"] AS $alias) {
- if (strstr($alias, "@")) {
- $data["addr"] = str_replace('acct:', '', $alias);
- }
- }
- }
-
- if (is_string($webfinger["subject"]) AND strstr($webfinger["subject"], "@")) {
- $data["addr"] = str_replace('acct:', '', $webfinger["subject"]);
- }
- $pubkey = "";
- foreach ($webfinger["links"] AS $link) {
- if (($link["rel"] == "http://webfinger.net/rel/profile-page") AND
- ($link["type"] == "text/html") AND ($link["href"] != "")) {
- $data["url"] = $link["href"];
- } elseif (($link["rel"] == "salmon") AND ($link["href"] != "")) {
- $data["notify"] = $link["href"];
- } elseif (($link["rel"] == NAMESPACE_FEED) AND ($link["href"] != "")) {
- $data["poll"] = $link["href"];
- } elseif (($link["rel"] == "magic-public-key") AND ($link["href"] != "")) {
- $pubkey = $link["href"];
-
- if (substr($pubkey, 0, 5) === 'data:') {
- if (strstr($pubkey, ',')) {
- $pubkey = substr($pubkey, strpos($pubkey, ',') + 1);
- } else {
- $pubkey = substr($pubkey, 5);
- }
- } elseif (normalise_link($pubkey) == 'http://') {
- $ret = z_fetch_url($pubkey);
- if ($ret['errno'] == CURLE_OPERATION_TIMEDOUT) {
- return false;
- }
- $pubkey = $ret['body'];
- }
-
- $key = explode(".", $pubkey);
-
- if (sizeof($key) >= 3) {
- $m = base64url_decode($key[1]);
- $e = base64url_decode($key[2]);
- $data["pubkey"] = metopem($m,$e);
- }
- }
- }
-
- if (isset($data["notify"]) AND isset($data["pubkey"]) AND
- isset($data["poll"]) AND isset($data["url"])) {
- $data["network"] = NETWORK_OSTATUS;
- } else {
- return false;
- }
- // Fetch all additional data from the feed
- $ret = z_fetch_url($data["poll"]);
- if ($ret['errno'] == CURLE_OPERATION_TIMEDOUT) {
- return false;
- }
- $feed = $ret['body'];
- $feed_data = feed_import($feed,$dummy1,$dummy2, $dummy3, true);
- if (!$feed_data) {
- return false;
- }
- if ($feed_data["header"]["author-name"] != "") {
- $data["name"] = $feed_data["header"]["author-name"];
- }
- if ($feed_data["header"]["author-nick"] != "") {
- $data["nick"] = $feed_data["header"]["author-nick"];
- }
- if ($feed_data["header"]["author-avatar"] != "") {
- $data["photo"] = self::fix_avatar($feed_data["header"]["author-avatar"], $data["url"]);
- }
- if ($feed_data["header"]["author-id"] != "") {
- $data["alias"] = $feed_data["header"]["author-id"];
- }
- if ($feed_data["header"]["author-location"] != "") {
- $data["location"] = $feed_data["header"]["author-location"];
- }
- if ($feed_data["header"]["author-about"] != "") {
- $data["about"] = $feed_data["header"]["author-about"];
- }
- // OStatus has serious issues when the the url doesn't fit (ssl vs. non ssl)
- // So we take the value that we just fetched, although the other one worked as well
- if ($feed_data["header"]["author-link"] != "") {
- $data["url"] = $feed_data["header"]["author-link"];
- }
- /// @todo Fetch location and "about" from the feed as well
- return $data;
- }
-
- /**
- * @brief Fetch data from a pump.io profile page
- *
- * @param string $profile Link to the profile page
- *
- * @return array profile data
- */
- private function pumpio_profile_data($profile) {
-
- $doc = new DOMDocument();
- if (!@$doc->loadHTMLFile($profile))
- return false;
-
- $xpath = new DomXPath($doc);
-
- $data = array();
-
- // This is ugly - but pump.io doesn't seem to know a better way for it
- $data["name"] = trim($xpath->query("//h1[@class='media-header']")->item(0)->nodeValue);
- $pos = strpos($data["name"], chr(10));
- if ($pos)
- $data["name"] = trim(substr($data["name"], 0, $pos));
-
- $avatar = $xpath->query("//img[@class='img-rounded media-object']")->item(0);
- if ($avatar)
- foreach ($avatar->attributes as $attribute)
- if ($attribute->name == "src")
- $data["photo"] = trim($attribute->value);
-
- $data["location"] = $xpath->query("//p[@class='location']")->item(0)->nodeValue;
- $data["about"] = $xpath->query("//p[@class='summary']")->item(0)->nodeValue;
-
- return $data;
- }
-
- /**
- * @brief Check for pump.io contact
- *
- * @param array $webfinger Webfinger data
- *
- * @return array pump.io data
- */
- private function pumpio($webfinger) {
-
- $data = array();
- foreach ($webfinger["links"] AS $link) {
- if (($link["rel"] == "http://webfinger.net/rel/profile-page") AND
- ($link["type"] == "text/html") AND ($link["href"] != ""))
- $data["url"] = $link["href"];
- elseif (($link["rel"] == "activity-inbox") AND ($link["href"] != ""))
- $data["notify"] = $link["href"];
- elseif (($link["rel"] == "activity-outbox") AND ($link["href"] != ""))
- $data["poll"] = $link["href"];
- elseif (($link["rel"] == "dialback") AND ($link["href"] != ""))
- $data["dialback"] = $link["href"];
- }
- if (isset($data["poll"]) AND isset($data["notify"]) AND
- isset($data["dialback"]) AND isset($data["url"])) {
-
- // by now we use these fields only for the network type detection
- // So we unset all data that isn't used at the moment
- unset($data["dialback"]);
-
- $data["network"] = NETWORK_PUMPIO;
- } else
- return false;
-
- $profile_data = self::pumpio_profile_data($data["url"]);
-
- if (!$profile_data)
- return false;
-
- $data = array_merge($data, $profile_data);
-
- return $data;
- }
-
- /**
- * @brief Check page for feed link
- *
- * @param string $url Page link
- *
- * @return string feed link
- */
- private function get_feed_link($url) {
- $doc = new DOMDocument();
-
- if (!@$doc->loadHTMLFile($url))
- return false;
-
- $xpath = new DomXPath($doc);
-
- //$feeds = $xpath->query("/html/head/link[@type='application/rss+xml']");
- $feeds = $xpath->query("/html/head/link[@type='application/rss+xml' and @rel='alternate']");
- if (!is_object($feeds))
- return false;
-
- if ($feeds->length == 0)
- return false;
-
- $feed_url = "";
-
- foreach ($feeds AS $feed) {
- $attr = array();
- foreach ($feed->attributes as $attribute)
- $attr[$attribute->name] = trim($attribute->value);
-
- if ($feed_url == "")
- $feed_url = $attr["href"];
- }
-
- return $feed_url;
- }
-
- /**
- * @brief Check for feed contact
- *
- * @param string $url Profile link
- * @param boolean $probe Do a probe if the page contains a feed link
- *
- * @return array feed data
- */
- private function feed($url, $probe = true) {
- $ret = z_fetch_url($url);
- if ($ret['errno'] == CURLE_OPERATION_TIMEDOUT) {
- return false;
- }
- $feed = $ret['body'];
- $feed_data = feed_import($feed, $dummy1, $dummy2, $dummy3, true);
-
- if (!$feed_data) {
- if (!$probe)
- return false;
-
- $feed_url = self::get_feed_link($url);
-
- if (!$feed_url)
- return false;
-
- return self::feed($feed_url, false);
- }
-
- if ($feed_data["header"]["author-name"] != "")
- $data["name"] = $feed_data["header"]["author-name"];
-
- if ($feed_data["header"]["author-nick"] != "")
- $data["nick"] = $feed_data["header"]["author-nick"];
-
- if ($feed_data["header"]["author-avatar"] != "")
- $data["photo"] = $feed_data["header"]["author-avatar"];
-
- if ($feed_data["header"]["author-id"] != "")
- $data["alias"] = $feed_data["header"]["author-id"];
-
- $data["url"] = $url;
- $data["poll"] = $url;
-
- if ($feed_data["header"]["author-link"] != "")
- $data["baseurl"] = $feed_data["header"]["author-link"];
- else
- $data["baseurl"] = $data["url"];
-
- $data["network"] = NETWORK_FEED;
-
- return $data;
- }
-
- /**
- * @brief Check for mail contact
- *
- * @param string $uri Profile link
- * @param integer $uid User ID
- *
- * @return array mail data
- */
- private function mail($uri, $uid) {
-
- if (!validate_email($uri))
- return false;
-
- $x = q("SELECT `prvkey` FROM `user` WHERE `uid` = %d LIMIT 1", intval($uid));
-
- $r = q("SELECT * FROM `mailacct` WHERE `uid` = %d AND `server` != '' LIMIT 1", intval($uid));
-
- if (dbm::is_result($x) && dbm::is_result($r)) {
- $mailbox = construct_mailbox_name($r[0]);
- $password = '';
- openssl_private_decrypt(hex2bin($r[0]['pass']), $password,$x[0]['prvkey']);
- $mbox = email_connect($mailbox,$r[0]['user'], $password);
- if(!mbox)
- return false;
- }
-
- $msgs = email_poll($mbox, $uri);
- logger('searching '.$uri.', '.count($msgs).' messages found.', LOGGER_DEBUG);
-
- if (!count($msgs))
- return false;
-
- $data = array();
-
- $data["addr"] = $uri;
- $data["network"] = NETWORK_MAIL;
- $data["name"] = substr($uri, 0, strpos($uri,'@'));
- $data["nick"] = $data["name"];
- $data["photo"] = avatar_img($uri);
-
- $phost = substr($uri, strpos($uri,'@') + 1);
- $data["url"] = 'http://'.$phost."/".$data["nick"];
- $data["notify"] = 'smtp '.random_string();
- $data["poll"] = 'email '.random_string();
-
- $x = email_msg_meta($mbox, $msgs[0]);
- if(stristr($x[0]->from, $uri))
- $adr = imap_rfc822_parse_adrlist($x[0]->from, '');
- elseif(stristr($x[0]->to, $uri))
- $adr = imap_rfc822_parse_adrlist($x[0]->to, '');
- if(isset($adr)) {
- foreach($adr as $feadr) {
- if((strcasecmp($feadr->mailbox, $data["name"]) == 0)
- &&(strcasecmp($feadr->host, $phost) == 0)
- && (strlen($feadr->personal))) {
-
- $personal = imap_mime_header_decode($feadr->personal);
- $data["name"] = "";
- foreach($personal as $perspart)
- if ($perspart->charset != "default")
- $data["name"] .= iconv($perspart->charset, 'UTF-8//IGNORE', $perspart->text);
- else
- $data["name"] .= $perspart->text;
-
- $data["name"] = notags($data["name"]);
- }
- }
- }
- imap_close($mbox);
-
- return $data;
- }
-
- /**
- * @brief Mix two paths together to possibly fix missing parts
- *
- * @param string $avatar Path to the avatar
- * @param string $base Another path that is hopefully complete
- *
- * @return string fixed avatar path
- */
- public static function fix_avatar($avatar, $base) {
- $base_parts = parse_url($base);
-
- // Remove all parts that could create a problem
- unset($base_parts['path']);
- unset($base_parts['query']);
- unset($base_parts['fragment']);
-
- $avatar_parts = parse_url($avatar);
-
- // Now we mix them
- $parts = array_merge($base_parts, $avatar_parts);
-
- // And put them together again
- $scheme = isset($parts['scheme']) ? $parts['scheme'] . '://' : '';
- $host = isset($parts['host']) ? $parts['host'] : '';
- $port = isset($parts['port']) ? ':' . $parts['port'] : '';
- $path = isset($parts['path']) ? $parts['path'] : '';
- $query = isset($parts['query']) ? '?' . $parts['query'] : '';
- $fragment = isset($parts['fragment']) ? '#' . $parts['fragment'] : '';
-
- $fixed = $scheme.$host.$port.$path.$query.$fragment;
-
- logger('Base: '.$base.' - Avatar: '.$avatar.' - Fixed: '.$fixed, LOGGER_DATA);
-
- return $fixed;
- }
-
-}
<?php
-require_once('include/Probe.php');
+
+use Friendica\Network\Probe;
/**
*
<?php
use Friendica\App;
+use Friendica\Network\Probe;
use League\HTMLToMarkdown\HtmlConverter;
use Friendica\App;
use Friendica\Core\Config;
+use Friendica\Network\Probe;
function cronjobs_run(&$argv, &$argc){
global $a;
- require_once('include/Probe.php');
require_once 'include/datetime.php';
require_once 'include/ostatus.php';
require_once 'include/post_update.php';
use Friendica\App;
use Friendica\Core\Config;
+use Friendica\Network\Probe;
require_once("include/xml.php");
-require_once('include/Probe.php');
/**
* @brief Curl wrapper
use Friendica\App;
use Friendica\Core\Config;
require_once("include/Scrape.php");
+use Friendica\Network\Probe;
require_once 'include/Contact.php';
require_once 'include/threads.php';
<?php
+use Friendica\Network\Probe;
+
require_once 'include/crypto.php';
-require_once('include/Probe.php');
function get_salmon_key($uri, $keyhash) {
$ret = array();
use Friendica\App;
use Friendica\Core\Config;
require_once("include/Scrape.php");
+use Friendica\Network\Probe;
require_once 'include/datetime.php';
require_once 'include/network.php';
<?php
use Friendica\App;
+use Friendica\Network\Probe;
require_once('include/Scrape.php');
require_once 'include/Contact.php';
*/
use Friendica\App;
+use Friendica\Network\Probe;
-require_once('include/Probe.php');
require_once 'include/enotify.php';
require_once 'include/group.php';
use Friendica\App;
require_once('include/Scrape.php');
-require_once('include/Probe.php');
+use Friendica\Network\Probe;
require_once 'include/enotify.php';
require_once 'include/group.php';
use Friendica\App;
use Friendica\Core\Config;
+use Friendica\Network\Probe;
require_once 'include/Photo.php';
require_once 'include/photos.php';
require_once 'include/redir.php';
require_once 'include/tags.php';
require_once 'include/threads.php';
-require_once 'include/Probe.php';
function photos_init(App $a) {
<?php
use Friendica\App;
+use Friendica\Network\Probe;
require_once 'include/Contact.php';
-require_once('include/Probe.php');
function profiles_init(App $a) {
<?php
use Friendica\App;
-
-require_once("include/Probe.php");
+use Friendica\Network\Probe;
function webfinger_content(App $a) {
--- /dev/null
+<?php
+
+namespace Friendica\Network;
+
+/**
+ * @file src/Network/Probe.php
+ * @brief Functions for probing URL
+ *
+ */
+
+use Friendica\App;
+use Friendica\Core\Config;
+use Friendica\Core\PConfig;
+
+require_once("include/feed.php");
+require_once('include/email.php');
+require_once('include/network.php');
+
+/**
+ * @brief This class contain functions for probing URL
+ *
+ */
+class Probe {
+
+ private static $baseurl;
+
+ /**
+ * @brief Rearrange the array so that it always has the same order
+ *
+ * @param array $data Unordered data
+ *
+ * @return array Ordered data
+ */
+ private function rearrange_data($data) {
+ $fields = array("name", "nick", "guid", "url", "addr", "alias",
+ "photo", "community", "keywords", "location", "about",
+ "batch", "notify", "poll", "request", "confirm", "poco",
+ "priority", "network", "pubkey", "baseurl");
+
+ $newdata = array();
+ foreach ($fields AS $field)
+ if (isset($data[$field]))
+ $newdata[$field] = $data[$field];
+ else
+ $newdata[$field] = "";
+
+ // We don't use the "priority" field anymore and replace it with a dummy.
+ $newdata["priority"] = 0;
+
+ return $newdata;
+ }
+
+ /**
+ * @brief Probes for XRD data
+ *
+ * @return array
+ * 'lrdd' => Link to LRDD endpoint
+ * 'lrdd-xml' => Link to LRDD endpoint in XML format
+ * 'lrdd-json' => Link to LRDD endpoint in JSON format
+ */
+ private function xrd($host) {
+
+ // Reset the static variable
+ self::$baseurl = '';
+
+ $ssl_url = "https://".$host."/.well-known/host-meta";
+ $url = "http://".$host."/.well-known/host-meta";
+
+ $xrd_timeout = Config::get('system','xrd_timeout', 20);
+ $redirects = 0;
+
+ $ret = z_fetch_url($ssl_url, false, $redirects, array('timeout' => $xrd_timeout, 'accept_content' => 'application/xrd+xml'));
+ if ($ret['errno'] == CURLE_OPERATION_TIMEDOUT) {
+ return false;
+ }
+ $xml = $ret['body'];
+
+ $xrd = parse_xml_string($xml, false);
+
+ if (!is_object($xrd)) {
+ $ret = z_fetch_url($url, false, $redirects, array('timeout' => $xrd_timeout, 'accept_content' => 'application/xrd+xml'));
+ if ($ret['errno'] == CURLE_OPERATION_TIMEDOUT) {
+ return false;
+ }
+ $xml = $ret['body'];
+ $xrd = parse_xml_string($xml, false);
+ }
+ if (!is_object($xrd))
+ return false;
+
+ $links = xml::element_to_array($xrd);
+ if (!isset($links["xrd"]["link"]))
+ return false;
+
+ $xrd_data = array();
+
+ foreach ($links["xrd"]["link"] AS $value => $link) {
+ if (isset($link["@attributes"]))
+ $attributes = $link["@attributes"];
+ elseif ($value == "@attributes")
+ $attributes = $link;
+ else
+ continue;
+
+ if (($attributes["rel"] == "lrdd") AND
+ ($attributes["type"] == "application/xrd+xml"))
+ $xrd_data["lrdd-xml"] = $attributes["template"];
+ elseif (($attributes["rel"] == "lrdd") AND
+ ($attributes["type"] == "application/json"))
+ $xrd_data["lrdd-json"] = $attributes["template"];
+ elseif ($attributes["rel"] == "lrdd")
+ $xrd_data["lrdd"] = $attributes["template"];
+ }
+
+ self::$baseurl = "http://".$host;
+
+ return $xrd_data;
+ }
+
+ /**
+ * @brief Perform Webfinger lookup and return DFRN data
+ *
+ * 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
+ *
+ * @param string $webbie Address that should be probed
+ * @param string $hcard Link to the hcard - is returned by reference
+ *
+ * @return string profile link
+ */
+
+ public static function webfinger_dfrn($webbie, &$hcard) {
+
+ $profile_link = '';
+
+ $links = self::lrdd($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) AND ($profile_link == ""))
+ $profile_link = 'stat:'.$link['@attributes']['template'];
+ if ($link['@attributes']['rel'] === 'http://microformats.org/profile/hcard')
+ $hcard = $link['@attributes']['href'];
+ }
+ }
+ return $profile_link;
+ }
+
+ /**
+ * @brief Check an URI for LRDD data
+ *
+ * this is a replacement for the "lrdd" function in include/network.php.
+ * It isn't used in this class and has some redundancies in the code.
+ * When time comes we can check the existing calls for "lrdd" if we can rework them.
+ *
+ * @param string $uri Address that should be probed
+ *
+ * @return array uri data
+ */
+ public static function lrdd($uri) {
+
+ $lrdd = self::xrd($uri);
+
+ if (!$lrdd) {
+ $parts = @parse_url($uri);
+ if (!$parts)
+ return array();
+
+ $host = $parts["host"];
+ if (isset($parts["port"])) {
+ $host .= ':'.$parts["port"];
+ }
+
+ $path_parts = explode("/", trim($parts["path"], "/"));
+
+ $nick = array_pop($path_parts);
+
+ do {
+ $lrdd = self::xrd($host);
+ $host .= "/".array_shift($path_parts);
+ } while (!$lrdd AND (sizeof($path_parts) > 0));
+ }
+
+ if (!$lrdd)
+ return array();
+
+ foreach ($lrdd AS $key => $link) {
+ if ($webfinger)
+ continue;
+
+ if (!in_array($key, array("lrdd", "lrdd-xml", "lrdd-json")))
+ continue;
+
+ $path = str_replace('{uri}', urlencode($uri), $link);
+ $webfinger = self::webfinger($path);
+
+ if (!$webfinger AND (strstr($uri, "@"))) {
+ $path = str_replace('{uri}', urlencode("acct:".$uri), $link);
+ $webfinger = self::webfinger($path);
+ }
+
+ // Special treatment for Mastodon
+ // Problem is that Mastodon uses an URL format like http://domain.tld/@nick
+ // But the webfinger for this format fails.
+ if (!$webfinger AND isset($nick)) {
+ // Mastodon uses a "@" as prefix for usernames in their url format
+ $nick = ltrim($nick, '@');
+
+ $addr = $nick."@".$host;
+
+ $path = str_replace('{uri}', urlencode("acct:".$addr), $link);
+ $webfinger = self::webfinger($path);
+ }
+ }
+
+ if (!is_array($webfinger["links"]))
+ return false;
+
+ $data = array();
+
+ foreach ($webfinger["links"] AS $link)
+ $data[] = array("@attributes" => $link);
+
+ if (is_array($webfinger["aliases"]))
+ foreach ($webfinger["aliases"] AS $alias)
+ $data[] = array("@attributes" =>
+ array("rel" => "alias",
+ "href" => $alias));
+
+ return $data;
+ }
+
+ /**
+ * @brief Fetch information (protocol endpoints and user information) about a given uri
+ *
+ * @param string $uri Address that should be probed
+ * @param string $network Test for this specific network
+ * @param integer $uid User ID for the probe (only used for mails)
+ * @param boolean $cache Use cached values?
+ *
+ * @return array uri data
+ */
+ public static function uri($uri, $network = "", $uid = 0, $cache = true) {
+
+ if ($cache) {
+ $result = Cache::get("probe_url:".$network.":".$uri);
+ if (!is_null($result)) {
+ return $result;
+ }
+ }
+
+ if ($uid == 0)
+ $uid = local_user();
+
+ $data = self::detect($uri, $network, $uid);
+
+ if (!isset($data["url"]))
+ $data["url"] = $uri;
+
+ if ($data["photo"] != "")
+ $data["baseurl"] = matching_url(normalise_link($data["baseurl"]), normalise_link($data["photo"]));
+ else
+ $data["photo"] = App::get_baseurl().'/images/person-175.jpg';
+
+ if (!isset($data["name"]) OR ($data["name"] == "")) {
+ if (isset($data["nick"]))
+ $data["name"] = $data["nick"];
+
+ if ($data["name"] == "")
+ $data["name"] = $data["url"];
+ }
+
+ if (!isset($data["nick"]) OR ($data["nick"] == "")) {
+ $data["nick"] = strtolower($data["name"]);
+
+ if (strpos($data['nick'], ' '))
+ $data['nick'] = trim(substr($data['nick'], 0, strpos($data['nick'], ' ')));
+ }
+
+ if (self::$baseurl != "") {
+ $data["baseurl"] = self::$baseurl;
+ }
+
+ if (!isset($data["network"])) {
+ $data["network"] = NETWORK_PHANTOM;
+ }
+
+ $data = self::rearrange_data($data);
+
+ // Only store into the cache if the value seems to be valid
+ if (!in_array($data['network'], array(NETWORK_PHANTOM, NETWORK_MAIL))) {
+ Cache::set("probe_url:".$network.":".$uri, $data, CACHE_DAY);
+
+ /// @todo temporary fix - we need a real contact update function that updates only changing fields
+ /// The biggest problem is the avatar picture that could have a reduced image size.
+ /// It should only be updated if the existing picture isn't existing anymore.
+ if (($data['network'] != NETWORK_FEED) AND ($mode == PROBE_NORMAL) AND
+ $data["name"] AND $data["nick"] AND $data["url"] AND $data["addr"] AND $data["poll"])
+ q("UPDATE `contact` SET `name` = '%s', `nick` = '%s', `url` = '%s', `addr` = '%s',
+ `notify` = '%s', `poll` = '%s', `alias` = '%s', `success_update` = '%s'
+ WHERE `nurl` = '%s' AND NOT `self` AND `uid` = 0",
+ dbesc($data["name"]),
+ dbesc($data["nick"]),
+ dbesc($data["url"]),
+ dbesc($data["addr"]),
+ dbesc($data["notify"]),
+ dbesc($data["poll"]),
+ dbesc($data["alias"]),
+ dbesc(datetime_convert()),
+ dbesc(normalise_link($data['url']))
+ );
+ }
+
+ return $data;
+ }
+
+ /**
+ * @brief Fetch information (protocol endpoints and user information) about a given uri
+ *
+ * This function is only called by the "uri" function that adds caching and rearranging of data.
+ *
+ * @param string $uri Address that should be probed
+ * @param string $network Test for this specific network
+ * @param integer $uid User ID for the probe (only used for mails)
+ *
+ * @return array uri data
+ */
+ private function detect($uri, $network, $uid) {
+ $parts = parse_url($uri);
+
+ if (isset($parts["scheme"]) AND isset($parts["host"]) AND isset($parts["path"])) {
+
+ $host = $parts["host"];
+ if (isset($parts["port"])) {
+ $host .= ':'.$parts["port"];
+ }
+
+ if ($host == 'twitter.com') {
+ return array("network" => NETWORK_TWITTER);
+ }
+ $lrdd = self::xrd($host);
+
+ $path_parts = explode("/", trim($parts["path"], "/"));
+
+ while (!$lrdd AND (sizeof($path_parts) > 1)) {
+ $host .= "/".array_shift($path_parts);
+ $lrdd = self::xrd($host);
+ }
+ if (!$lrdd) {
+ return self::feed($uri);
+ }
+ $nick = array_pop($path_parts);
+
+ // Mastodon uses a "@" as prefix for usernames in their url format
+ $nick = ltrim($nick, '@');
+
+ $addr = $nick."@".$host;
+ } elseif (strstr($uri, '@')) {
+ // If the URI starts with "mailto:" then jump directly to the mail detection
+ if (strpos($url,'mailto:') !== false) {
+ $uri = str_replace('mailto:', '', $url);
+ return self::mail($uri, $uid);
+ }
+
+ if ($network == NETWORK_MAIL) {
+ return self::mail($uri, $uid);
+ }
+ // Remove "acct:" from the URI
+ $uri = str_replace('acct:', '', $uri);
+
+ $host = substr($uri,strpos($uri, '@') + 1);
+ $nick = substr($uri,0, strpos($uri, '@'));
+
+ if (strpos($uri, '@twitter.com')) {
+ return array("network" => NETWORK_TWITTER);
+ }
+ $lrdd = self::xrd($host);
+
+ if (!$lrdd) {
+ return self::mail($uri, $uid);
+ }
+ $addr = $uri;
+ } else {
+ return false;
+ }
+
+ $webfinger = false;
+
+ /// @todo Do we need the prefix "acct:" or "acct://"?
+
+ foreach ($lrdd AS $key => $link) {
+ if ($webfinger) {
+ continue;
+ }
+ if (!in_array($key, array("lrdd", "lrdd-xml", "lrdd-json"))) {
+ continue;
+ }
+ // At first try it with the given uri
+ $path = str_replace('{uri}', urlencode($uri), $link);
+ $webfinger = self::webfinger($path);
+
+ // We cannot be sure that the detected address was correct, so we don't use the values
+ if ($webfinger AND ($uri != $addr)) {
+ $nick = "";
+ $addr = "";
+ }
+
+ // Try webfinger with the address (user@domain.tld)
+ if (!$webfinger) {
+ $path = str_replace('{uri}', urlencode($addr), $link);
+ $webfinger = self::webfinger($path);
+ }
+
+ // Mastodon needs to have it with "acct:"
+ if (!$webfinger) {
+ $path = str_replace('{uri}', urlencode("acct:".$addr), $link);
+ $webfinger = self::webfinger($path);
+ }
+ }
+ if (!$webfinger) {
+ return self::feed($uri);
+ }
+
+ $result = false;
+
+ logger("Probing ".$uri, LOGGER_DEBUG);
+
+ if (in_array($network, array("", NETWORK_DFRN)))
+ $result = self::dfrn($webfinger);
+ if ((!$result AND ($network == "")) OR ($network == NETWORK_DIASPORA))
+ $result = self::diaspora($webfinger);
+ if ((!$result AND ($network == "")) OR ($network == NETWORK_OSTATUS))
+ $result = self::ostatus($webfinger);
+ if ((!$result AND ($network == "")) OR ($network == NETWORK_PUMPIO))
+ $result = self::pumpio($webfinger);
+ if ((!$result AND ($network == "")) OR ($network == NETWORK_FEED))
+ $result = self::feed($uri);
+ else {
+ // We overwrite the detected nick with our try if the previois routines hadn't detected it.
+ // Additionally it is overwritten when the nickname doesn't make sense (contains spaces).
+ if ((!isset($result["nick"]) OR ($result["nick"] == "") OR (strstr($result["nick"], " "))) AND ($nick != ""))
+ $result["nick"] = $nick;
+
+ if ((!isset($result["addr"]) OR ($result["addr"] == "")) AND ($addr != ""))
+ $result["addr"] = $addr;
+ }
+
+ logger($uri." is ".$result["network"], LOGGER_DEBUG);
+
+ if (!isset($result["baseurl"]) OR ($result["baseurl"] == "")) {
+ $pos = strpos($result["url"], $host);
+ if ($pos)
+ $result["baseurl"] = substr($result["url"], 0, $pos).$host;
+ }
+
+ return $result;
+ }
+
+ /**
+ * @brief Perform a webfinger request.
+ *
+ * For details see RFC 7033: <https://tools.ietf.org/html/rfc7033>
+ *
+ * @param string $url Address that should be probed
+ *
+ * @return array webfinger data
+ */
+ private function webfinger($url) {
+
+ $xrd_timeout = Config::get('system','xrd_timeout', 20);
+ $redirects = 0;
+
+ $ret = z_fetch_url($url, false, $redirects, array('timeout' => $xrd_timeout, 'accept_content' => 'application/xrd+xml'));
+ if ($ret['errno'] == CURLE_OPERATION_TIMEDOUT) {
+ return false;
+ }
+ $data = $ret['body'];
+
+ $xrd = parse_xml_string($data, false);
+
+ if (!is_object($xrd)) {
+ // If it is not XML, maybe it is JSON
+ $webfinger = json_decode($data, true);
+
+ if (!isset($webfinger["links"]))
+ return false;
+
+ return $webfinger;
+ }
+
+ $xrd_arr = xml::element_to_array($xrd);
+ if (!isset($xrd_arr["xrd"]["link"]))
+ return false;
+
+ $webfinger = array();
+
+ if (isset($xrd_arr["xrd"]["subject"]))
+ $webfinger["subject"] = $xrd_arr["xrd"]["subject"];
+
+ if (isset($xrd_arr["xrd"]["alias"]))
+ $webfinger["aliases"] = $xrd_arr["xrd"]["alias"];
+
+ $webfinger["links"] = array();
+
+ foreach ($xrd_arr["xrd"]["link"] AS $value => $data) {
+ if (isset($data["@attributes"]))
+ $attributes = $data["@attributes"];
+ elseif ($value == "@attributes")
+ $attributes = $data;
+ else
+ continue;
+
+ $webfinger["links"][] = $attributes;
+ }
+ return $webfinger;
+ }
+
+ /**
+ * @brief Poll the Friendica specific noscrape page.
+ *
+ * "noscrape" is a faster alternative to fetch the data from the hcard.
+ * This functionality was originally created for the directory.
+ *
+ * @param string $noscrape Link to the noscrape page
+ * @param array $data The already fetched data
+ *
+ * @return array noscrape data
+ */
+ private function poll_noscrape($noscrape, $data) {
+ $ret = z_fetch_url($noscrape);
+ if ($ret['errno'] == CURLE_OPERATION_TIMEDOUT) {
+ return false;
+ }
+ $content = $ret['body'];
+ if (!$content) {
+ return false;
+ }
+
+ $json = json_decode($content, true);
+ if (!is_array($json))
+ return false;
+
+ if (isset($json["fn"]))
+ $data["name"] = $json["fn"];
+
+ if (isset($json["addr"]))
+ $data["addr"] = $json["addr"];
+
+ if (isset($json["nick"]))
+ $data["nick"] = $json["nick"];
+
+ if (isset($json["comm"]))
+ $data["community"] = $json["comm"];
+
+ if (isset($json["tags"])) {
+ $keywords = implode(" ", $json["tags"]);
+ if ($keywords != "")
+ $data["keywords"] = $keywords;
+ }
+
+ $location = formatted_location($json);
+ if ($location)
+ $data["location"] = $location;
+
+ if (isset($json["about"]))
+ $data["about"] = $json["about"];
+
+ if (isset($json["key"]))
+ $data["pubkey"] = $json["key"];
+
+ if (isset($json["photo"]))
+ $data["photo"] = $json["photo"];
+
+ if (isset($json["dfrn-request"]))
+ $data["request"] = $json["dfrn-request"];
+
+ if (isset($json["dfrn-confirm"]))
+ $data["confirm"] = $json["dfrn-confirm"];
+
+ if (isset($json["dfrn-notify"]))
+ $data["notify"] = $json["dfrn-notify"];
+
+ if (isset($json["dfrn-poll"]))
+ $data["poll"] = $json["dfrn-poll"];
+
+ return $data;
+ }
+
+ /**
+ * @brief Check for valid DFRN data
+ *
+ * @param array $data DFRN data
+ *
+ * @return int Number of errors
+ */
+ public static function valid_dfrn($data) {
+ $errors = 0;
+ if(!isset($data['key']))
+ $errors ++;
+ if(!isset($data['dfrn-request']))
+ $errors ++;
+ if(!isset($data['dfrn-confirm']))
+ $errors ++;
+ if(!isset($data['dfrn-notify']))
+ $errors ++;
+ if(!isset($data['dfrn-poll']))
+ $errors ++;
+ return $errors;
+ }
+
+ /**
+ * @brief Fetch data from a DFRN profile page and via "noscrape"
+ *
+ * @param string $profile Link to the profile page
+ *
+ * @return array profile data
+ */
+ public static function profile($profile) {
+
+ $data = array();
+
+ logger("Check profile ".$profile, LOGGER_DEBUG);
+
+ // Fetch data via noscrape - this is faster
+ $noscrape = str_replace(array("/hcard/", "/profile/"), "/noscrape/", $profile);
+ $data = self::poll_noscrape($noscrape, $data);
+
+ if (!isset($data["notify"]) OR !isset($data["confirm"]) OR
+ !isset($data["request"]) OR !isset($data["poll"]) OR
+ !isset($data["poco"]) OR !isset($data["name"]) OR
+ !isset($data["photo"]))
+ $data = self::poll_hcard($profile, $data, true);
+
+ $prof_data = array();
+ $prof_data["addr"] = $data["addr"];
+ $prof_data["nick"] = $data["nick"];
+ $prof_data["dfrn-request"] = $data["request"];
+ $prof_data["dfrn-confirm"] = $data["confirm"];
+ $prof_data["dfrn-notify"] = $data["notify"];
+ $prof_data["dfrn-poll"] = $data["poll"];
+ $prof_data["dfrn-poco"] = $data["poco"];
+ $prof_data["photo"] = $data["photo"];
+ $prof_data["fn"] = $data["name"];
+ $prof_data["key"] = $data["pubkey"];
+
+ logger("Result for profile ".$profile.": ".print_r($prof_data, true), LOGGER_DEBUG);
+
+ return $prof_data;
+ }
+
+ /**
+ * @brief Check for DFRN contact
+ *
+ * @param array $webfinger Webfinger data
+ *
+ * @return array DFRN data
+ */
+ private function dfrn($webfinger) {
+
+ $hcard = "";
+ $data = array();
+ foreach ($webfinger["links"] AS $link) {
+ if (($link["rel"] == NAMESPACE_DFRN) AND ($link["href"] != ""))
+ $data["network"] = NETWORK_DFRN;
+ elseif (($link["rel"] == NAMESPACE_FEED) AND ($link["href"] != ""))
+ $data["poll"] = $link["href"];
+ elseif (($link["rel"] == "http://webfinger.net/rel/profile-page") AND
+ ($link["type"] == "text/html") AND ($link["href"] != ""))
+ $data["url"] = $link["href"];
+ elseif (($link["rel"] == "http://microformats.org/profile/hcard") AND ($link["href"] != ""))
+ $hcard = $link["href"];
+ elseif (($link["rel"] == NAMESPACE_POCO) AND ($link["href"] != ""))
+ $data["poco"] = $link["href"];
+ elseif (($link["rel"] == "http://webfinger.net/rel/avatar") AND ($link["href"] != ""))
+ $data["photo"] = $link["href"];
+
+ elseif (($link["rel"] == "http://joindiaspora.com/seed_location") AND ($link["href"] != ""))
+ $data["baseurl"] = trim($link["href"], '/');
+ elseif (($link["rel"] == "http://joindiaspora.com/guid") AND ($link["href"] != ""))
+ $data["guid"] = $link["href"];
+ elseif (($link["rel"] == "diaspora-public-key") AND ($link["href"] != "")) {
+ $data["pubkey"] = base64_decode($link["href"]);
+
+ //if (strstr($data["pubkey"], 'RSA ') OR ($link["type"] == "RSA"))
+ if (strstr($data["pubkey"], 'RSA '))
+ $data["pubkey"] = rsatopem($data["pubkey"]);
+ }
+ }
+
+ if (!isset($data["network"]) OR ($hcard == ""))
+ return false;
+
+ // Fetch data via noscrape - this is faster
+ $noscrape = str_replace("/hcard/", "/noscrape/", $hcard);
+ $data = self::poll_noscrape($noscrape, $data);
+
+ if (isset($data["notify"]) AND isset($data["confirm"]) AND isset($data["request"]) AND
+ isset($data["poll"]) AND isset($data["name"]) AND isset($data["photo"]))
+ return $data;
+
+ $data = self::poll_hcard($hcard, $data, true);
+
+ return $data;
+ }
+
+ /**
+ * @brief Poll the hcard page (Diaspora and Friendica specific)
+ *
+ * @param string $hcard Link to the hcard page
+ * @param array $data The already fetched data
+ * @param boolean $dfrn Poll DFRN specific data
+ *
+ * @return array hcard data
+ */
+ private function poll_hcard($hcard, $data, $dfrn = false) {
+ $ret = z_fetch_url($hcard);
+ if ($ret['errno'] == CURLE_OPERATION_TIMEDOUT) {
+ return false;
+ }
+ $content = $ret['body'];
+ if (!$content) {
+ return false;
+ }
+
+ $doc = new DOMDocument();
+ if (!@$doc->loadHTML($content))
+ return false;
+
+ $xpath = new DomXPath($doc);
+
+ $vcards = $xpath->query("//div[contains(concat(' ', @class, ' '), ' vcard ')]");
+ if (!is_object($vcards))
+ return false;
+
+ if ($vcards->length > 0) {
+ $vcard = $vcards->item(0);
+
+ // We have to discard the guid from the hcard in favour of the guid from lrdd
+ // Reason: Hubzilla doesn't use the value "uid" in the hcard like Diaspora does.
+ $search = $xpath->query("//*[contains(concat(' ', @class, ' '), ' uid ')]", $vcard); // */
+ if (($search->length > 0) AND ($data["guid"] == ""))
+ $data["guid"] = $search->item(0)->nodeValue;
+
+ $search = $xpath->query("//*[contains(concat(' ', @class, ' '), ' nickname ')]", $vcard); // */
+ if ($search->length > 0)
+ $data["nick"] = $search->item(0)->nodeValue;
+
+ $search = $xpath->query("//*[contains(concat(' ', @class, ' '), ' fn ')]", $vcard); // */
+ if ($search->length > 0)
+ $data["name"] = $search->item(0)->nodeValue;
+
+ $search = $xpath->query("//*[contains(concat(' ', @class, ' '), ' searchable ')]", $vcard); // */
+ if ($search->length > 0)
+ $data["searchable"] = $search->item(0)->nodeValue;
+
+ $search = $xpath->query("//*[contains(concat(' ', @class, ' '), ' key ')]", $vcard); // */
+ if ($search->length > 0) {
+ $data["pubkey"] = $search->item(0)->nodeValue;
+ if (strstr($data["pubkey"], 'RSA '))
+ $data["pubkey"] = rsatopem($data["pubkey"]);
+ }
+
+ $search = $xpath->query("//*[@id='pod_location']", $vcard); // */
+ if ($search->length > 0)
+ $data["baseurl"] = trim($search->item(0)->nodeValue, "/");
+ }
+
+ $avatar = array();
+ $photos = $xpath->query("//*[contains(concat(' ', @class, ' '), ' photo ') or contains(concat(' ', @class, ' '), ' avatar ')]", $vcard); // */
+ foreach ($photos AS $photo) {
+ $attr = array();
+ foreach ($photo->attributes as $attribute) {
+ $attr[$attribute->name] = trim($attribute->value);
+ }
+
+ if (isset($attr["src"]) AND isset($attr["width"])) {
+ $avatar[$attr["width"]] = $attr["src"];
+ }
+
+ // We don't have a width. So we just take everything that we got.
+ // This is a Hubzilla workaround which doesn't send a width.
+ if ((sizeof($avatar) == 0) AND isset($attr["src"])) {
+ $avatar[] = $attr["src"];
+ }
+ }
+
+ if (sizeof($avatar)) {
+ ksort($avatar);
+ $data["photo"] = self::fix_avatar(array_pop($avatar), $data["baseurl"]);
+ }
+
+ if ($dfrn) {
+ // Poll DFRN specific data
+ $search = $xpath->query("//link[contains(concat(' ', @rel), ' dfrn-')]");
+ if ($search->length > 0) {
+ foreach ($search AS $link) {
+ //$data["request"] = $search->item(0)->nodeValue;
+ $attr = array();
+ foreach ($link->attributes as $attribute)
+ $attr[$attribute->name] = trim($attribute->value);
+
+ $data[substr($attr["rel"], 5)] = $attr["href"];
+ }
+ }
+
+ // Older Friendica versions had used the "uid" field differently than newer versions
+ if ($data["nick"] == $data["guid"])
+ unset($data["guid"]);
+ }
+
+
+ return $data;
+ }
+
+ /**
+ * @brief Check for Diaspora contact
+ *
+ * @param array $webfinger Webfinger data
+ *
+ * @return array Diaspora data
+ */
+ private function diaspora($webfinger) {
+
+ $hcard = "";
+ $data = array();
+ foreach ($webfinger["links"] AS $link) {
+ if (($link["rel"] == "http://microformats.org/profile/hcard") AND ($link["href"] != ""))
+ $hcard = $link["href"];
+ elseif (($link["rel"] == "http://joindiaspora.com/seed_location") AND ($link["href"] != ""))
+ $data["baseurl"] = trim($link["href"], '/');
+ elseif (($link["rel"] == "http://joindiaspora.com/guid") AND ($link["href"] != ""))
+ $data["guid"] = $link["href"];
+ elseif (($link["rel"] == "http://webfinger.net/rel/profile-page") AND
+ ($link["type"] == "text/html") AND ($link["href"] != ""))
+ $data["url"] = $link["href"];
+ elseif (($link["rel"] == NAMESPACE_FEED) AND ($link["href"] != ""))
+ $data["poll"] = $link["href"];
+ elseif (($link["rel"] == NAMESPACE_POCO) AND ($link["href"] != ""))
+ $data["poco"] = $link["href"];
+ elseif (($link["rel"] == "salmon") AND ($link["href"] != ""))
+ $data["notify"] = $link["href"];
+ elseif (($link["rel"] == "diaspora-public-key") AND ($link["href"] != "")) {
+ $data["pubkey"] = base64_decode($link["href"]);
+
+ //if (strstr($data["pubkey"], 'RSA ') OR ($link["type"] == "RSA"))
+ if (strstr($data["pubkey"], 'RSA '))
+ $data["pubkey"] = rsatopem($data["pubkey"]);
+ }
+ }
+
+ if (!isset($data["url"]) OR ($hcard == ""))
+ return false;
+
+ if (is_array($webfinger["aliases"]))
+ foreach ($webfinger["aliases"] AS $alias)
+ if (normalise_link($alias) != normalise_link($data["url"]) AND !strstr($alias, "@"))
+ $data["alias"] = $alias;
+
+ // Fetch further information from the hcard
+ $data = self::poll_hcard($hcard, $data);
+
+ if (!$data)
+ return false;
+
+ if (isset($data["url"]) AND isset($data["guid"]) AND isset($data["baseurl"]) AND
+ isset($data["pubkey"]) AND ($hcard != "")) {
+ $data["network"] = NETWORK_DIASPORA;
+
+ // The Diaspora handle must always be lowercase
+ $data["addr"] = strtolower($data["addr"]);
+
+ // We have to overwrite the detected value for "notify" since Hubzilla doesn't send it
+ $data["notify"] = $data["baseurl"]."/receive/users/".$data["guid"];
+ $data["batch"] = $data["baseurl"]."/receive/public";
+ } else
+ return false;
+
+ return $data;
+ }
+
+ /**
+ * @brief Check for OStatus contact
+ *
+ * @param array $webfinger Webfinger data
+ *
+ * @return array OStatus data
+ */
+ private function ostatus($webfinger) {
+ $data = array();
+ if (is_array($webfinger["aliases"])) {
+ foreach ($webfinger["aliases"] AS $alias) {
+ if (strstr($alias, "@")) {
+ $data["addr"] = str_replace('acct:', '', $alias);
+ }
+ }
+ }
+
+ if (is_string($webfinger["subject"]) AND strstr($webfinger["subject"], "@")) {
+ $data["addr"] = str_replace('acct:', '', $webfinger["subject"]);
+ }
+ $pubkey = "";
+ foreach ($webfinger["links"] AS $link) {
+ if (($link["rel"] == "http://webfinger.net/rel/profile-page") AND
+ ($link["type"] == "text/html") AND ($link["href"] != "")) {
+ $data["url"] = $link["href"];
+ } elseif (($link["rel"] == "salmon") AND ($link["href"] != "")) {
+ $data["notify"] = $link["href"];
+ } elseif (($link["rel"] == NAMESPACE_FEED) AND ($link["href"] != "")) {
+ $data["poll"] = $link["href"];
+ } elseif (($link["rel"] == "magic-public-key") AND ($link["href"] != "")) {
+ $pubkey = $link["href"];
+
+ if (substr($pubkey, 0, 5) === 'data:') {
+ if (strstr($pubkey, ',')) {
+ $pubkey = substr($pubkey, strpos($pubkey, ',') + 1);
+ } else {
+ $pubkey = substr($pubkey, 5);
+ }
+ } elseif (normalise_link($pubkey) == 'http://') {
+ $ret = z_fetch_url($pubkey);
+ if ($ret['errno'] == CURLE_OPERATION_TIMEDOUT) {
+ return false;
+ }
+ $pubkey = $ret['body'];
+ }
+
+ $key = explode(".", $pubkey);
+
+ if (sizeof($key) >= 3) {
+ $m = base64url_decode($key[1]);
+ $e = base64url_decode($key[2]);
+ $data["pubkey"] = metopem($m,$e);
+ }
+ }
+ }
+
+ if (isset($data["notify"]) AND isset($data["pubkey"]) AND
+ isset($data["poll"]) AND isset($data["url"])) {
+ $data["network"] = NETWORK_OSTATUS;
+ } else {
+ return false;
+ }
+ // Fetch all additional data from the feed
+ $ret = z_fetch_url($data["poll"]);
+ if ($ret['errno'] == CURLE_OPERATION_TIMEDOUT) {
+ return false;
+ }
+ $feed = $ret['body'];
+ $feed_data = feed_import($feed,$dummy1,$dummy2, $dummy3, true);
+ if (!$feed_data) {
+ return false;
+ }
+ if ($feed_data["header"]["author-name"] != "") {
+ $data["name"] = $feed_data["header"]["author-name"];
+ }
+ if ($feed_data["header"]["author-nick"] != "") {
+ $data["nick"] = $feed_data["header"]["author-nick"];
+ }
+ if ($feed_data["header"]["author-avatar"] != "") {
+ $data["photo"] = self::fix_avatar($feed_data["header"]["author-avatar"], $data["url"]);
+ }
+ if ($feed_data["header"]["author-id"] != "") {
+ $data["alias"] = $feed_data["header"]["author-id"];
+ }
+ if ($feed_data["header"]["author-location"] != "") {
+ $data["location"] = $feed_data["header"]["author-location"];
+ }
+ if ($feed_data["header"]["author-about"] != "") {
+ $data["about"] = $feed_data["header"]["author-about"];
+ }
+ // OStatus has serious issues when the the url doesn't fit (ssl vs. non ssl)
+ // So we take the value that we just fetched, although the other one worked as well
+ if ($feed_data["header"]["author-link"] != "") {
+ $data["url"] = $feed_data["header"]["author-link"];
+ }
+ /// @todo Fetch location and "about" from the feed as well
+ return $data;
+ }
+
+ /**
+ * @brief Fetch data from a pump.io profile page
+ *
+ * @param string $profile Link to the profile page
+ *
+ * @return array profile data
+ */
+ private function pumpio_profile_data($profile) {
+
+ $doc = new DOMDocument();
+ if (!@$doc->loadHTMLFile($profile))
+ return false;
+
+ $xpath = new DomXPath($doc);
+
+ $data = array();
+
+ // This is ugly - but pump.io doesn't seem to know a better way for it
+ $data["name"] = trim($xpath->query("//h1[@class='media-header']")->item(0)->nodeValue);
+ $pos = strpos($data["name"], chr(10));
+ if ($pos)
+ $data["name"] = trim(substr($data["name"], 0, $pos));
+
+ $avatar = $xpath->query("//img[@class='img-rounded media-object']")->item(0);
+ if ($avatar)
+ foreach ($avatar->attributes as $attribute)
+ if ($attribute->name == "src")
+ $data["photo"] = trim($attribute->value);
+
+ $data["location"] = $xpath->query("//p[@class='location']")->item(0)->nodeValue;
+ $data["about"] = $xpath->query("//p[@class='summary']")->item(0)->nodeValue;
+
+ return $data;
+ }
+
+ /**
+ * @brief Check for pump.io contact
+ *
+ * @param array $webfinger Webfinger data
+ *
+ * @return array pump.io data
+ */
+ private function pumpio($webfinger) {
+
+ $data = array();
+ foreach ($webfinger["links"] AS $link) {
+ if (($link["rel"] == "http://webfinger.net/rel/profile-page") AND
+ ($link["type"] == "text/html") AND ($link["href"] != ""))
+ $data["url"] = $link["href"];
+ elseif (($link["rel"] == "activity-inbox") AND ($link["href"] != ""))
+ $data["notify"] = $link["href"];
+ elseif (($link["rel"] == "activity-outbox") AND ($link["href"] != ""))
+ $data["poll"] = $link["href"];
+ elseif (($link["rel"] == "dialback") AND ($link["href"] != ""))
+ $data["dialback"] = $link["href"];
+ }
+ if (isset($data["poll"]) AND isset($data["notify"]) AND
+ isset($data["dialback"]) AND isset($data["url"])) {
+
+ // by now we use these fields only for the network type detection
+ // So we unset all data that isn't used at the moment
+ unset($data["dialback"]);
+
+ $data["network"] = NETWORK_PUMPIO;
+ } else
+ return false;
+
+ $profile_data = self::pumpio_profile_data($data["url"]);
+
+ if (!$profile_data)
+ return false;
+
+ $data = array_merge($data, $profile_data);
+
+ return $data;
+ }
+
+ /**
+ * @brief Check page for feed link
+ *
+ * @param string $url Page link
+ *
+ * @return string feed link
+ */
+ private function get_feed_link($url) {
+ $doc = new DOMDocument();
+
+ if (!@$doc->loadHTMLFile($url))
+ return false;
+
+ $xpath = new DomXPath($doc);
+
+ //$feeds = $xpath->query("/html/head/link[@type='application/rss+xml']");
+ $feeds = $xpath->query("/html/head/link[@type='application/rss+xml' and @rel='alternate']");
+ if (!is_object($feeds))
+ return false;
+
+ if ($feeds->length == 0)
+ return false;
+
+ $feed_url = "";
+
+ foreach ($feeds AS $feed) {
+ $attr = array();
+ foreach ($feed->attributes as $attribute)
+ $attr[$attribute->name] = trim($attribute->value);
+
+ if ($feed_url == "")
+ $feed_url = $attr["href"];
+ }
+
+ return $feed_url;
+ }
+
+ /**
+ * @brief Check for feed contact
+ *
+ * @param string $url Profile link
+ * @param boolean $probe Do a probe if the page contains a feed link
+ *
+ * @return array feed data
+ */
+ private function feed($url, $probe = true) {
+ $ret = z_fetch_url($url);
+ if ($ret['errno'] == CURLE_OPERATION_TIMEDOUT) {
+ return false;
+ }
+ $feed = $ret['body'];
+ $feed_data = feed_import($feed, $dummy1, $dummy2, $dummy3, true);
+
+ if (!$feed_data) {
+ if (!$probe)
+ return false;
+
+ $feed_url = self::get_feed_link($url);
+
+ if (!$feed_url)
+ return false;
+
+ return self::feed($feed_url, false);
+ }
+
+ if ($feed_data["header"]["author-name"] != "")
+ $data["name"] = $feed_data["header"]["author-name"];
+
+ if ($feed_data["header"]["author-nick"] != "")
+ $data["nick"] = $feed_data["header"]["author-nick"];
+
+ if ($feed_data["header"]["author-avatar"] != "")
+ $data["photo"] = $feed_data["header"]["author-avatar"];
+
+ if ($feed_data["header"]["author-id"] != "")
+ $data["alias"] = $feed_data["header"]["author-id"];
+
+ $data["url"] = $url;
+ $data["poll"] = $url;
+
+ if ($feed_data["header"]["author-link"] != "")
+ $data["baseurl"] = $feed_data["header"]["author-link"];
+ else
+ $data["baseurl"] = $data["url"];
+
+ $data["network"] = NETWORK_FEED;
+
+ return $data;
+ }
+
+ /**
+ * @brief Check for mail contact
+ *
+ * @param string $uri Profile link
+ * @param integer $uid User ID
+ *
+ * @return array mail data
+ */
+ private function mail($uri, $uid) {
+
+ if (!validate_email($uri))
+ return false;
+
+ $x = q("SELECT `prvkey` FROM `user` WHERE `uid` = %d LIMIT 1", intval($uid));
+
+ $r = q("SELECT * FROM `mailacct` WHERE `uid` = %d AND `server` != '' LIMIT 1", intval($uid));
+
+ if (dbm::is_result($x) && dbm::is_result($r)) {
+ $mailbox = construct_mailbox_name($r[0]);
+ $password = '';
+ openssl_private_decrypt(hex2bin($r[0]['pass']), $password,$x[0]['prvkey']);
+ $mbox = email_connect($mailbox,$r[0]['user'], $password);
+ if(!mbox)
+ return false;
+ }
+
+ $msgs = email_poll($mbox, $uri);
+ logger('searching '.$uri.', '.count($msgs).' messages found.', LOGGER_DEBUG);
+
+ if (!count($msgs))
+ return false;
+
+ $data = array();
+
+ $data["addr"] = $uri;
+ $data["network"] = NETWORK_MAIL;
+ $data["name"] = substr($uri, 0, strpos($uri,'@'));
+ $data["nick"] = $data["name"];
+ $data["photo"] = avatar_img($uri);
+
+ $phost = substr($uri, strpos($uri,'@') + 1);
+ $data["url"] = 'http://'.$phost."/".$data["nick"];
+ $data["notify"] = 'smtp '.random_string();
+ $data["poll"] = 'email '.random_string();
+
+ $x = email_msg_meta($mbox, $msgs[0]);
+ if(stristr($x[0]->from, $uri))
+ $adr = imap_rfc822_parse_adrlist($x[0]->from, '');
+ elseif(stristr($x[0]->to, $uri))
+ $adr = imap_rfc822_parse_adrlist($x[0]->to, '');
+ if(isset($adr)) {
+ foreach($adr as $feadr) {
+ if((strcasecmp($feadr->mailbox, $data["name"]) == 0)
+ &&(strcasecmp($feadr->host, $phost) == 0)
+ && (strlen($feadr->personal))) {
+
+ $personal = imap_mime_header_decode($feadr->personal);
+ $data["name"] = "";
+ foreach($personal as $perspart)
+ if ($perspart->charset != "default")
+ $data["name"] .= iconv($perspart->charset, 'UTF-8//IGNORE', $perspart->text);
+ else
+ $data["name"] .= $perspart->text;
+
+ $data["name"] = notags($data["name"]);
+ }
+ }
+ }
+ imap_close($mbox);
+
+ return $data;
+ }
+
+ /**
+ * @brief Mix two paths together to possibly fix missing parts
+ *
+ * @param string $avatar Path to the avatar
+ * @param string $base Another path that is hopefully complete
+ *
+ * @return string fixed avatar path
+ */
+ public static function fix_avatar($avatar, $base) {
+ $base_parts = parse_url($base);
+
+ // Remove all parts that could create a problem
+ unset($base_parts['path']);
+ unset($base_parts['query']);
+ unset($base_parts['fragment']);
+
+ $avatar_parts = parse_url($avatar);
+
+ // Now we mix them
+ $parts = array_merge($base_parts, $avatar_parts);
+
+ // And put them together again
+ $scheme = isset($parts['scheme']) ? $parts['scheme'] . '://' : '';
+ $host = isset($parts['host']) ? $parts['host'] : '';
+ $port = isset($parts['port']) ? ':' . $parts['port'] : '';
+ $path = isset($parts['path']) ? $parts['path'] : '';
+ $query = isset($parts['query']) ? '?' . $parts['query'] : '';
+ $fragment = isset($parts['fragment']) ? '#' . $parts['fragment'] : '';
+
+ $fixed = $scheme.$host.$port.$path.$query.$fragment;
+
+ logger('Base: '.$base.' - Avatar: '.$avatar.' - Fixed: '.$fixed, LOGGER_DATA);
+
+ return $fixed;
+ }
+
+}
projects / friendica.git / commitdiff