658 lines
19 KiB
PHP
658 lines
19 KiB
PHP
<?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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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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class Probe {
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private function rearrange_data($data) {
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$fields = array("name", "nick", "guid", "url", "addr", "batch",
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"notify", "poll", "request", "confirm", "poco",
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"photo", "priority", "network", "alias", "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 $xrd_data;
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}
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public static function uri($uri) {
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$data = self::detect($uri);
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//if (!data)
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// return false;
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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($data["name"]))
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$data["name"] = $data["url"];
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if (!isset($data["nick"]))
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$data["nick"] = strtolower($data["name"]);
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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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return $data;
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}
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private function detect($uri) {
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if (strstr($uri, '@')) {
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// If the URI starts with "mailto:" then jum directly to the mail detection
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if (strpos($url,'mailto:') !== false) {
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$uri = str_replace('mailto:', '', $url);
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return self::mail($uri);
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}
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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($uri, '@'));
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$lrdd = self::xrd($host);
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if (!$lrdd)
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return self::mail($uri);
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$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 = $parts["host"];
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$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($key, array("lrdd", "lrdd-xml", "lrdd-json")))
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continue;
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$path = str_replace('{uri}', urlencode($addr), $link);
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$webfinger = self::webfinger($path);
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}
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if (!$webfinger)
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return self::feed($uri);
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$result = false;
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if (!$result)
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$result = self::dfrn($webfinger);
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if (!$result)
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$result = self::diaspora($webfinger);
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if (!$result)
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$result = self::ostatus($webfinger);
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if (!$result)
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$result = self::pumpio($webfinger);
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if (!$result)
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$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"], " ")))
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$result["nick"] = $nick;
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if (!isset($result["addr"]) OR ($result["addr"] == ""))
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$result["addr"] = $addr;
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}
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if (!isset($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 $result;
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}
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private function webfinger($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 $webfinger;
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}
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private function dfrn($webfinger) {
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$hcard = "";
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$data = array();
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foreach ($webfinger["links"] AS $link) {
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if (($link["rel"] == NAMESPACE_DFRN) AND ($link["href"] != ""))
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$data["network"] = NETWORK_DFRN;
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elseif (($link["rel"] == NAMESPACE_FEED) AND ($link["href"] != ""))
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$data["poll"] = $link["href"];
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elseif (($link["rel"] == "http://webfinger.net/rel/profile-page") AND
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($link["type"] == "text/html") AND ($link["href"] != ""))
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$data["url"] = $link["href"];
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elseif (($link["rel"] == "http://microformats.org/profile/hcard") AND ($link["href"] != ""))
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$hcard = $link["href"];
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elseif (($link["rel"] == NAMESPACE_POCO) AND ($link["href"] != ""))
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$data["poco"] = $link["href"];
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elseif (($link["rel"] == "http://webfinger.net/rel/avatar") AND ($link["href"] != ""))
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$data["photo"] = $link["href"];
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elseif (($link["rel"] == "http://joindiaspora.com/seed_location") AND ($link["href"] != ""))
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$data["baseurl"] = trim($link["href"], '/');
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elseif (($link["rel"] == "http://joindiaspora.com/guid") AND ($link["href"] != ""))
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$data["guid"] = $link["href"];
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elseif (($link["rel"] == "diaspora-public-key") AND ($link["href"] != "")) {
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$data["pubkey"] = base64_decode($link["href"]);
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if (strstr($data["pubkey"], 'RSA ') OR ($link["type"] == "RSA"))
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$data["pubkey"] = rsatopem($data["pubkey"]);
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}
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}
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if (!isset($data["network"]) OR ($hcard == ""))
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return false;
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$data = self::poll_hcard($hcard, $data, true);
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return $data;
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}
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private function poll_hcard($hcard, $data, $dfrn = false) {
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$doc = new DOMDocument();
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if (!@$doc->loadHTMLFile($hcard))
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return false;
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$xpath = new DomXPath($doc);
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$vcards = $xpath->query("//div[contains(concat(' ', @class, ' '), ' vcard ')]");
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if (!is_object($vcards))
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return false;
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if ($vcards->length == 0)
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return false;
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$vcard = $vcards->item(0);
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// We have to discard the guid from the hcard in favour of the guid from lrdd
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// Reason: Hubzilla doesn't use the value "uid" in the hcard like Diaspora does.
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$search = $xpath->query("//*[contains(concat(' ', @class, ' '), ' uid ')]", $vcard); // */
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if (($search->length > 0) AND ($data["guid"] == ""))
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$data["guid"] = $search->item(0)->nodeValue;
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$search = $xpath->query("//*[contains(concat(' ', @class, ' '), ' nickname ')]", $vcard); // */
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if ($search->length > 0)
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$data["nick"] = $search->item(0)->nodeValue;
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$search = $xpath->query("//*[contains(concat(' ', @class, ' '), ' fn ')]", $vcard); // */
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if ($search->length > 0)
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$data["name"] = $search->item(0)->nodeValue;
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$search = $xpath->query("//*[contains(concat(' ', @class, ' '), ' searchable ')]", $vcard); // */
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if ($search->length > 0)
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$data["searchable"] = $search->item(0)->nodeValue;
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$search = $xpath->query("//*[contains(concat(' ', @class, ' '), ' key ')]", $vcard); // */
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if ($search->length > 0) {
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$data["pubkey"] = $search->item(0)->nodeValue;
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if (strstr($data["pubkey"], 'RSA '))
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$data["pubkey"] = rsatopem($data["pubkey"]);
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}
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$search = $xpath->query("//*[@id='pod_location']", $vcard); // */
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if ($search->length > 0)
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$data["baseurl"] = trim($search->item(0)->nodeValue, "/");
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$avatar = array();
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$photos = $xpath->query("//*[contains(concat(' ', @class, ' '), ' photo ') or contains(concat(' ', @class, ' '), ' avatar ')]", $vcard); // */
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foreach ($photos AS $photo) {
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$attr = array();
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foreach ($photo->attributes as $attribute)
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$attr[$attribute->name] = trim($attribute->value);
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if (isset($attr["src"]) AND isset($attr["width"]))
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$avatar[$attr["width"]] = $attr["src"];
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}
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if (sizeof($avatar)) {
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ksort($avatar);
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$data["photo"] = array_pop($avatar);
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}
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if ($dfrn) {
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// Poll DFRN specific data
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$search = $xpath->query("//link[contains(concat(' ', @rel), ' dfrn-')]");
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if ($search->length > 0) {
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foreach ($search AS $link) {
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//$data["request"] = $search->item(0)->nodeValue;
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$attr = array();
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foreach ($link->attributes as $attribute)
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$attr[$attribute->name] = trim($attribute->value);
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$data[substr($attr["rel"], 5)] = $attr["href"];
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}
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}
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// Older Friendica versions had used the "uid" field differently than newer versions
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if ($data["nick"] == $data["guid"])
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unset($data["guid"]);
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}
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return $data;
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}
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private function diaspora($webfinger) {
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$hcard = "";
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$data = array();
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foreach ($webfinger["links"] AS $link) {
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if (($link["rel"] == "http://microformats.org/profile/hcard") AND ($link["href"] != ""))
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$hcard = $link["href"];
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elseif (($link["rel"] == "http://joindiaspora.com/seed_location") AND ($link["href"] != ""))
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$data["baseurl"] = trim($link["href"], '/');
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elseif (($link["rel"] == "http://joindiaspora.com/guid") AND ($link["href"] != ""))
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$data["guid"] = $link["href"];
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elseif (($link["rel"] == "http://webfinger.net/rel/profile-page") AND
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($link["type"] == "text/html") AND ($link["href"] != ""))
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$data["url"] = $link["href"];
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elseif (($link["rel"] == NAMESPACE_FEED) AND ($link["href"] != ""))
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$data["poll"] = $link["href"];
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elseif (($link["rel"] == NAMESPACE_POCO) AND ($link["href"] != ""))
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$data["poco"] = $link["href"];
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elseif (($link["rel"] == "salmon") AND ($link["href"] != ""))
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$data["notify"] = $link["href"];
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elseif (($link["rel"] == "diaspora-public-key") AND ($link["href"] != "")) {
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$data["pubkey"] = base64_decode($link["href"]);
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if (strstr($data["pubkey"], 'RSA ') OR ($link["type"] == "RSA"))
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$data["pubkey"] = rsatopem($data["pubkey"]);
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}
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}
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if (!isset($data["url"]) OR ($hcard == ""))
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return false;
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if (isset($webfinger["aliases"]))
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foreach ($webfinger["aliases"] AS $alias)
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if (normalise_link($alias) != normalise_link($data["url"]) AND !strstr($alias, "@"))
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$data["alias"] = $alias;
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// Fetch further information from the hcard
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$data = self::poll_hcard($hcard, $data);
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if (!$data)
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return false;
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if (isset($data["url"]) AND isset($data["guid"]) AND isset($data["baseurl"]) AND
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isset($data["pubkey"]) AND ($hcard != "")) {
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$data["network"] = NETWORK_DIASPORA;
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// We have to overwrite the detected value for "notify" since Hubzilla doesn't send it
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$data["notify"] = $data["baseurl"]."/receive/users/".$data["guid"];
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$data["batch"] = $data["baseurl"]."/receive/public";
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} else
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return false;
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return $data;
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}
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private function ostatus($webfinger) {
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$pubkey = "";
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$data = array();
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foreach ($webfinger["links"] AS $link) {
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if (($link["rel"] == "http://webfinger.net/rel/profile-page") AND
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($link["type"] == "text/html") AND ($link["href"] != ""))
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$data["url"] = $link["href"];
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elseif (($link["rel"] == "salmon") AND ($link["href"] != ""))
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$data["notify"] = $link["href"];
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elseif (($link["rel"] == NAMESPACE_FEED) AND ($link["href"] != ""))
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$data["poll"] = $link["href"];
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elseif (($link["rel"] == "magic-public-key") AND ($link["href"] != "")) {
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$pubkey = $link["href"];
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if (substr($pubkey, 0, 5) === 'data:') {
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if (strstr($pubkey, ','))
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$pubkey = substr($pubkey, strpos($pubkey, ',') + 1);
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else
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$pubkey = substr($pubkey, 5);
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} else
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$pubkey = fetch_url($pubkey);
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$key = explode(".", $pubkey);
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if (sizeof($key) >= 3) {
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$m = base64url_decode($key[1]);
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$e = base64url_decode($key[2]);
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$data["pubkey"] = metopem($m,$e);
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}
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}
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}
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if (isset($data["notify"]) AND isset($data["pubkey"]) AND
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isset($data["poll"]) AND isset($data["url"])) {
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$data["network"] = NETWORK_OSTATUS;
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} else
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return false;
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// Fetch all additional data from the feed
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$feed = fetch_url($data["poll"]);
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$feed_data = feed_import($feed,$dummy1,$dummy2, $dummy3, true);
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if (!$feed_data)
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return false;
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if ($feed_data["header"]["author-name"] != "")
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$data["name"] = $feed_data["header"]["author-name"];
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if ($feed_data["header"]["author-nick"] != "")
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$data["nick"] = $feed_data["header"]["author-nick"];
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if ($feed_data["header"]["author-avatar"] != "")
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$data["photo"] = $feed_data["header"]["author-avatar"];
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if ($feed_data["header"]["author-id"] != "")
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$data["alias"] = $feed_data["header"]["author-id"];
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// OStatus has serious issues when the the url doesn't fit (ssl vs. non ssl)
|
|
// So we take the value that we just fetched, although the other one worked as well
|
|
if ($feed_data["header"]["author-link"] != "")
|
|
$data["url"] = $feed_data["header"]["author-link"];
|
|
|
|
/// @todo Fetch location and "about" from the feed as well
|
|
return $data;
|
|
}
|
|
|
|
private function pumpio_profile_data($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 $data;
|
|
}
|
|
|
|
private function pumpio($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["activity-inbox"] = $link["href"];
|
|
elseif (($link["rel"] == "activity-outbox") AND ($link["href"] != ""))
|
|
$data["activity-outbox"] = $link["href"];
|
|
elseif (($link["rel"] == "dialback") AND ($link["href"] != ""))
|
|
$data["dialback"] = $link["href"];
|
|
}
|
|
if (isset($data["activity-inbox"]) AND isset($data["activity-outbox"]) AND
|
|
isset($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["activity-inbox"]);
|
|
unset($data["activity-outbox"]);
|
|
unset($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 $data;
|
|
}
|
|
|
|
private function feed($url) {
|
|
$feed = fetch_url($url);
|
|
$feed_data = feed_import($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"];
|
|
|
|
$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 $data;
|
|
}
|
|
|
|
private function mail($uri) {
|
|
|
|
if (!validate_email($uri))
|
|
return false;
|
|
|
|
$uid = local_user();
|
|
$uid = 1;
|
|
|
|
$x = q("SELECT `prvkey` FROM `user` WHERE `uid` = %d LIMIT 1", intval($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;
|
|
}
|
|
}
|
|
?>
|