src/Core/Protocol.php

   1 <?php
   2 /*
   3  * @file src/Core/Protocol.php
   4  */
   5 namespace Friendica\Core;
   6
   7 use Friendica\Util\Network;
   8
   9 /**
  10  * Manage compatibility with federated networks
  11  *
  12  * @author Hypolite Petovan <mrpetovan@gmail.com>
  13  */
  14 class Protocol
  15 {
  16         const DFRN      = 'dfrn';    // Friendica, Mistpark, other DFRN implementations
  17         const DIASPORA  = 'dspr';    // Diaspora
  18         const DIASPORA2 = 'dspc';    // Diaspora connector
  19         const STATUSNET = 'stac';    // Statusnet connector
  20         const OSTATUS   = 'stat';    // GNU-social, Pleroma, Mastodon, other OStatus implementations
  21         const FEED      = 'feed';    // RSS/Atom feeds with no known "post/notify" protocol
  22         const MAIL      = 'mail';    // IMAP/POP
  23         const XMPP      = 'xmpp';    // XMPP - Currently unsupported
  24
  25         const FACEBOOK  = 'face';    // Facebook API
  26         const LINKEDIN  = 'lnkd';    // LinkedIn
  27         const MYSPACE   = 'mysp';    // MySpace - Currently unsupported
  28         const GPLUS     = 'goog';    // Google+
  29         const PUMPIO    = 'pump';    // pump.io
  30         const TWITTER   = 'twit';    // Twitter
  31         const APPNET    = 'apdn';    // app.net - Dead protocol
  32
  33         const NEWS      = 'nntp';    // Network News Transfer Protocol - Currently unsupported
  34         const ICALENDAR = 'ical';    // iCalendar - Currently unsupported
  35         const PNUT      = 'pnut';    // pnut.io - Currently unsupported
  36         const ZOT       = 'zot!';    // Zot! - Currently unsupported
  37
  38         const PHANTOM   = 'unkn';    // Place holder
  39
  40         /**
  41          * Returns the address string for the provided profile URL
  42          *
  43          * @param string $profile_url
  44          * @return string
  45          * @throws Exception
  46          */
  47         public static function getAddrFromProfileUrl($profile_url)
  48         {
  49                 $network = self::matchByProfileUrl($profile_url, $matches);
  50
  51                 if ($network === self::PHANTOM) {
  52                         return "";
  53                 }
  54
  55                 $addr = $matches[2] . '@' . $matches[1];
  56
  57                 return $addr;
  58         }
  59
  60         /**
  61          * Guesses the network from a profile URL
  62          *
  63          * @param string $profile_url
  64          * @param array  $matches     preg_match return array: [0] => Full match [1] => hostname [2] => username
  65          * @return type
  66          */
  67         public static function matchByProfileUrl($profile_url, &$matches = [])
  68         {
  69                 if (preg_match('=https?://(twitter\.com)/(.*)=ism', $profile_url, $matches)) {
  70                         return self::TWITTER;
  71                 }
  72
  73                 if (preg_match('=https?://(alpha\.app\.net)/(.*)=ism', $profile_url, $matches)) {
  74                         return self::APPNET;
  75                 }
  76
  77                 if (preg_match('=https?://(plus\.google\.com)/(.*)=ism', $profile_url, $matches)) {
  78                         return self::GPLUS;
  79                 }
  80
  81                 if (preg_match('=https?://(.*)/profile/(.*)=ism', $profile_url, $matches)) {
  82                         return self::DFRN;
  83                 }
  84
  85                 if (preg_match('=https?://(.*)/u/(.*)=ism', $profile_url, $matches)) {
  86                         return self::DIASPORA;
  87                 }
  88
  89                 if (preg_match('=https?://(.*)/channel/(.*)=ism', $profile_url, $matches)) {
  90                         // RedMatrix/Hubzilla is identified as Diaspora - friendica can't connect directly to it
  91                         return self::DIASPORA;
  92                 }
  93
  94                 if (preg_match('=https?://(.*)/user/(.*)=ism', $profile_url, $matches)) {
  95                         $statusnet_host = $matches[1];
  96                         $statusnet_user = $matches[2];
  97                         $UserData = Network::fetchUrl('http://' . $statusnet_host . '/api/users/show.json?user_id=' . $statusnet_user);
  98                         $user = json_decode($UserData);
  99                         if ($user) {
 100                                 $matches[2] = $user->screen_name;
 101                                 return self::STATUSNET;
 102                         }
 103                 }
 104
 105                 // pumpio (http://host.name/user)
 106                 if (preg_match('=https?://([\.\w]+)/([\.\w]+)$=ism', $profile_url, $matches)) {
 107                         return self::PUMPIO;
 108                 }
 109
 110                 return self::PHANTOM;
 111         }
 112
 113         /**
 114          * Returns a formatted mention from a profile URL and a display name
 115          *
 116          * @param string $profile_url
 117          * @param string $display_name
 118          * @return string
 119          */
 120         public static function formatMention($profile_url, $display_name)
 121         {
 122                 return $display_name . ' (' . self::getAddrFromProfileUrl($profile_url) . ')';
 123         }
 124 }