1139 lines
33 KiB
PHP
1139 lines
33 KiB
PHP
<?php
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/**
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* @file include/Probe.php
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* @brief Functions for probing URL
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*
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*/
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use \Friendica\Core\Config;
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use \Friendica\Core\PConfig;
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require_once("include/feed.php");
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require_once('include/email.php');
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require_once('include/network.php');
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/**
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* @brief This class contain functions for probing URL
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*
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*/
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class Probe {
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/**
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* @brief Rearrange the array so that it always has the same order
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*
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* @param array $data Unordered data
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*
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* @return array Ordered data
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*/
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private function rearrange_data($data) {
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$fields = array("name", "nick", "guid", "url", "addr", "alias",
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"photo", "community", "keywords", "location", "about",
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"batch", "notify", "poll", "request", "confirm", "poco",
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"priority", "network", "pubkey", "baseurl");
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$newdata = array();
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foreach ($fields AS $field)
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if (isset($data[$field]))
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$newdata[$field] = $data[$field];
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else
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$newdata[$field] = "";
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// We don't use the "priority" field anymore and replace it with a dummy.
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$newdata["priority"] = 0;
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return $newdata;
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}
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/**
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* @brief Probes for XRD data
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*
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* @return array
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* 'lrdd' => Link to LRDD endpoint
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* 'lrdd-xml' => Link to LRDD endpoint in XML format
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* 'lrdd-json' => Link to LRDD endpoint in JSON format
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*/
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private function xrd($host) {
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$ssl_url = "https://".$host."/.well-known/host-meta";
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$url = "http://".$host."/.well-known/host-meta";
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$xrd_timeout = Config::get('system','xrd_timeout', 20);
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$redirects = 0;
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$xml = fetch_url($ssl_url, false, $redirects, $xrd_timeout, "application/xrd+xml");
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$xrd = parse_xml_string($xml, false);
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if (!is_object($xrd)) {
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$xml = fetch_url($url, false, $redirects, $xrd_timeout, "application/xrd+xml");
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$xrd = parse_xml_string($xml, false);
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}
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if (!is_object($xrd))
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return false;
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$links = xml::element_to_array($xrd);
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if (!isset($links["xrd"]["link"]))
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return false;
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$xrd_data = array();
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foreach ($links["xrd"]["link"] AS $value => $link) {
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if (isset($link["@attributes"]))
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$attributes = $link["@attributes"];
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elseif ($value == "@attributes")
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$attributes = $link;
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else
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continue;
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if (($attributes["rel"] == "lrdd") AND
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($attributes["type"] == "application/xrd+xml"))
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$xrd_data["lrdd-xml"] = $attributes["template"];
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elseif (($attributes["rel"] == "lrdd") AND
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($attributes["type"] == "application/json"))
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$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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}
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return $xrd_data;
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}
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/**
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* @brief Perform Webfinger lookup and return DFRN data
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*
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* Given an email style address, perform webfinger lookup and
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* return the resulting DFRN profile URL, or if no DFRN profile URL
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* is located, returns an OStatus subscription template (prefixed
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* with the string 'stat:' to identify it as on OStatus template).
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* If this isn't an email style address just return $webbie.
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* Return an empty string if email-style addresses but webfinger fails,
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* or if the resultant personal XRD doesn't contain a supported
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* subscription/friend-request attribute.
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*
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* amended 7/9/2011 to return an hcard which could save potentially loading
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* a lengthy content page to scrape dfrn attributes
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*
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* @param string $webbie Address that should be probed
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* @param string $hcard Link to the hcard - is returned by reference
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*
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* @return string profile link
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*/
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public static function webfinger_dfrn($webbie, &$hcard) {
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$profile_link = '';
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$links = self::lrdd($webbie);
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logger('webfinger_dfrn: '.$webbie.':'.print_r($links,true), LOGGER_DATA);
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if (count($links)) {
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foreach ($links as $link) {
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if ($link['@attributes']['rel'] === NAMESPACE_DFRN)
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$profile_link = $link['@attributes']['href'];
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if (($link['@attributes']['rel'] === NAMESPACE_OSTATUSSUB) AND ($profile_link == ""))
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$profile_link = 'stat:'.$link['@attributes']['template'];
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if ($link['@attributes']['rel'] === 'http://microformats.org/profile/hcard')
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$hcard = $link['@attributes']['href'];
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}
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}
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return $profile_link;
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}
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/**
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* @brief Check an URI for LRDD data
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*
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* this is a replacement for the "lrdd" function in include/network.php.
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* It isn't used in this class and has some redundancies in the code.
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* When time comes we can check the existing calls for "lrdd" if we can rework them.
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*
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* @param string $uri Address that should be probed
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*
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* @return array uri data
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*/
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public static function lrdd($uri) {
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$lrdd = self::xrd($uri);
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if (!$lrdd) {
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$parts = @parse_url($uri);
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if (!$parts)
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return array();
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$host = $parts["host"];
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$path_parts = explode("/", trim($parts["path"], "/"));
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do {
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$lrdd = self::xrd($host);
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$host .= "/".array_shift($path_parts);
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} while (!$lrdd AND (sizeof($path_parts) > 0));
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}
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if (!$lrdd)
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return array();
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foreach ($lrdd AS $key => $link) {
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if ($webfinger)
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continue;
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if (!in_array($key, array("lrdd", "lrdd-xml", "lrdd-json")))
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continue;
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$path = str_replace('{uri}', urlencode($uri), $link);
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$webfinger = self::webfinger($path);
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if (!$webfinger AND (strstr($uri, "@"))) {
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$path = str_replace('{uri}', urlencode("acct:".$uri), $link);
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$webfinger = self::webfinger($path);
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}
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}
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if (!is_array($webfinger["links"]))
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return false;
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$data = array();
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foreach ($webfinger["links"] AS $link)
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$data[] = array("@attributes" => $link);
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if (is_array($webfinger["aliases"]))
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foreach ($webfinger["aliases"] AS $alias)
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$data[] = array("@attributes" =>
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array("rel" => "alias",
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"href" => $alias));
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return $data;
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}
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/**
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* @brief Fetch information (protocol endpoints and user information) about a given uri
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*
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* @param string $uri Address that should be probed
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* @param string $network Test for this specific network
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* @param integer $uid User ID for the probe (only used for mails)
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* @param boolean $cache Use cached values?
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*
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* @return array uri data
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*/
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public static function uri($uri, $network = "", $uid = 0, $cache = true) {
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if ($cache) {
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$result = Cache::get("probe_url:".$network.":".$uri);
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if (!is_null($result)) {
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return $result;
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}
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}
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if ($uid == 0)
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$uid = local_user();
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$data = self::detect($uri, $network, $uid);
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if (!isset($data["url"]))
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$data["url"] = $uri;
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if ($data["photo"] != "")
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$data["baseurl"] = matching_url(normalise_link($data["baseurl"]), normalise_link($data["photo"]));
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else
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$data["photo"] = App::get_baseurl().'/images/person-175.jpg';
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if (!isset($data["name"]) OR ($data["name"] == "")) {
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if (isset($data["nick"]))
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$data["name"] = $data["nick"];
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if ($data["name"] == "")
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$data["name"] = $data["url"];
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}
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if (!isset($data["nick"]) OR ($data["nick"] == "")) {
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$data["nick"] = strtolower($data["name"]);
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if (strpos($data['nick'], ' '))
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$data['nick'] = trim(substr($data['nick'], 0, strpos($data['nick'], ' ')));
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}
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if (!isset($data["network"]))
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$data["network"] = NETWORK_PHANTOM;
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$data = self::rearrange_data($data);
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// Only store into the cache if the value seems to be valid
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if (!in_array($data['network'], array(NETWORK_PHANTOM, NETWORK_MAIL))) {
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Cache::set("probe_url:".$network.":".$uri, $data, CACHE_DAY);
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/// @todo temporary fix - we need a real contact update function that updates only changing fields
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/// The biggest problem is the avatar picture that could have a reduced image size.
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/// It should only be updated if the existing picture isn't existing anymore.
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if (($data['network'] != NETWORK_FEED) AND ($mode == PROBE_NORMAL) AND
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$data["name"] AND $data["nick"] AND $data["url"] AND $data["addr"] AND $data["poll"])
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q("UPDATE `contact` SET `name` = '%s', `nick` = '%s', `url` = '%s', `addr` = '%s',
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`notify` = '%s', `poll` = '%s', `alias` = '%s', `success_update` = '%s'
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WHERE `nurl` = '%s' AND NOT `self` AND `uid` = 0",
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dbesc($data["name"]),
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dbesc($data["nick"]),
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dbesc($data["url"]),
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dbesc($data["addr"]),
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dbesc($data["notify"]),
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dbesc($data["poll"]),
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dbesc($data["alias"]),
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dbesc(datetime_convert()),
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dbesc(normalise_link($data['url']))
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);
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}
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return $data;
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}
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/**
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* @brief Fetch information (protocol endpoints and user information) about a given uri
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*
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* This function is only called by the "uri" function that adds caching and rearranging of data.
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*
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* @param string $uri Address that should be probed
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* @param string $network Test for this specific network
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* @param integer $uid User ID for the probe (only used for mails)
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*
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* @return array uri data
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*/
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private function detect($uri, $network, $uid) {
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if (strstr($uri, '@')) {
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// If the URI starts with "mailto:" then jump directly to the mail detection
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if (strpos($url,'mailto:') !== false) {
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$uri = str_replace('mailto:', '', $url);
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return self::mail($uri, $uid);
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}
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if ($network == NETWORK_MAIL)
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return self::mail($uri, $uid);
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// Remove "acct:" from the URI
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$uri = str_replace('acct:', '', $uri);
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$host = substr($uri,strpos($uri, '@') + 1);
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$nick = substr($uri,0, strpos($uri, '@'));
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if (strpos($uri, '@twitter.com'))
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return array("network" => NETWORK_TWITTER);
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$lrdd = self::xrd($host);
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if (!$lrdd)
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return self::mail($uri, $uid);
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$addr = $uri;
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} else {
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$parts = parse_url($uri);
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if (!isset($parts["scheme"]) OR
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!isset($parts["host"]) OR
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!isset($parts["path"]))
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return false;
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// todo: Ports?
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$host = $parts["host"];
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if ($host == 'twitter.com')
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return array("network" => NETWORK_TWITTER);
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$lrdd = self::xrd($host);
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$path_parts = explode("/", trim($parts["path"], "/"));
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while (!$lrdd AND (sizeof($path_parts) > 1)) {
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$host .= "/".array_shift($path_parts);
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$lrdd = self::xrd($host);
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}
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if (!$lrdd)
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return self::feed($uri);
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$nick = array_pop($path_parts);
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$addr = $nick."@".$host;
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}
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$webfinger = false;
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/// @todo Do we need the prefix "acct:" or "acct://"?
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foreach ($lrdd AS $key => $link) {
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if ($webfinger)
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continue;
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if (!in_array($key, array("lrdd", "lrdd-xml", "lrdd-json")))
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continue;
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// Try webfinger with the address (user@domain.tld)
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$path = str_replace('{uri}', urlencode($addr), $link);
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$webfinger = self::webfinger($path);
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// Mastodon needs to have it with "acct:"
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if (!$webfinger) {
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$path = str_replace('{uri}', urlencode("acct:".$addr), $link);
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$webfinger = self::webfinger($path);
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}
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// If webfinger wasn't successful then try it with the URL - possibly in the format https://...
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if (!$webfinger AND ($uri != $addr)) {
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$path = str_replace('{uri}', urlencode($uri), $link);
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$webfinger = self::webfinger($path);
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// Since the detection with the address wasn't successful, we delete it.
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if ($webfinger) {
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$nick = "";
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$addr = "";
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}
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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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$result = false;
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logger("Probing ".$uri, LOGGER_DEBUG);
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if (in_array($network, array("", NETWORK_DFRN)))
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$result = self::dfrn($webfinger);
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if ((!$result AND ($network == "")) OR ($network == NETWORK_DIASPORA))
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$result = self::diaspora($webfinger);
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if ((!$result AND ($network == "")) OR ($network == NETWORK_OSTATUS))
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$result = self::ostatus($webfinger);
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if ((!$result AND ($network == "")) OR ($network == NETWORK_PUMPIO))
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$result = self::pumpio($webfinger);
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if ((!$result AND ($network == "")) OR ($network == NETWORK_FEED))
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$result = self::feed($uri);
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else {
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// We overwrite the detected nick with our try if the previois routines hadn't detected it.
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// Additionally it is overwritten when the nickname doesn't make sense (contains spaces).
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if ((!isset($result["nick"]) OR ($result["nick"] == "") OR (strstr($result["nick"], " "))) AND ($nick != ""))
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$result["nick"] = $nick;
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if ((!isset($result["addr"]) OR ($result["addr"] == "")) AND ($addr != ""))
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$result["addr"] = $addr;
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}
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logger($uri." is ".$result["network"], LOGGER_DEBUG);
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if (!isset($result["baseurl"]) OR ($result["baseurl"] == "")) {
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$pos = strpos($result["url"], $host);
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if ($pos)
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$result["baseurl"] = substr($result["url"], 0, $pos).$host;
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}
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return $result;
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}
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/**
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* @brief Perform a webfinger request.
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*
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* For details see RFC 7033: <https://tools.ietf.org/html/rfc7033>
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*
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* @param string $url Address that should be probed
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*
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* @return array webfinger data
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*/
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private function webfinger($url) {
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$xrd_timeout = Config::get('system','xrd_timeout', 20);
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$redirects = 0;
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$data = fetch_url($url, false, $redirects, $xrd_timeout, "application/xrd+xml");
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$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 (!isset($webfinger["links"]))
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return false;
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return $webfinger;
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}
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$xrd_arr = xml::element_to_array($xrd);
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if (!isset($xrd_arr["xrd"]["link"]))
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return false;
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$webfinger = array();
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if (isset($xrd_arr["xrd"]["subject"]))
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$webfinger["subject"] = $xrd_arr["xrd"]["subject"];
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if (isset($xrd_arr["xrd"]["alias"]))
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$webfinger["aliases"] = $xrd_arr["xrd"]["alias"];
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$webfinger["links"] = array();
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foreach ($xrd_arr["xrd"]["link"] AS $value => $data) {
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if (isset($data["@attributes"]))
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$attributes = $data["@attributes"];
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elseif ($value == "@attributes")
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$attributes = $data;
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else
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continue;
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$webfinger["links"][] = $attributes;
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}
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return $webfinger;
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}
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|
|
/**
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* @brief Poll the Friendica specific noscrape page.
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*
|
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* "noscrape" is a faster alternative to fetch the data from the hcard.
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* This functionality was originally created for the directory.
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*
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* @param string $noscrape Link to the noscrape page
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* @param array $data The already fetched data
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*
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* @return array noscrape data
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*/
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private function poll_noscrape($noscrape, $data) {
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$content = fetch_url($noscrape);
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if (!$content)
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return false;
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$json = json_decode($content, true);
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if (!is_array($json))
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return false;
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if (isset($json["fn"]))
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$data["name"] = $json["fn"];
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if (isset($json["addr"]))
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$data["addr"] = $json["addr"];
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if (isset($json["nick"]))
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$data["nick"] = $json["nick"];
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if (isset($json["comm"]))
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$data["community"] = $json["comm"];
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if (isset($json["tags"])) {
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$keywords = implode(" ", $json["tags"]);
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if ($keywords != "")
|
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$data["keywords"] = $keywords;
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}
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$location = formatted_location($json);
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if ($location)
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$data["location"] = $location;
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if (isset($json["about"]))
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$data["about"] = $json["about"];
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|
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if (isset($json["key"]))
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|
$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();
|
|
|
|
// 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"];
|
|
|
|
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) {
|
|
|
|
$content = fetch_url($hcard);
|
|
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"]] = $attr["src"];
|
|
}
|
|
|
|
if (sizeof($avatar)) {
|
|
ksort($avatar);
|
|
$data["photo"] = array_pop($avatar);
|
|
}
|
|
|
|
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://')
|
|
$pubkey = fetch_url($pubkey);
|
|
|
|
$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
|
|
$feed = fetch_url($data["poll"]);
|
|
$feed_data = feed_import($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"] = $feed_data["header"]["author-avatar"];
|
|
|
|
if ($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) {
|
|
$feed = fetch_url($url);
|
|
$feed_data = feed_import($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(count($x) && count($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;
|
|
}
|
|
}
|
|
?>
|