src/Worker/DiscoverPoCo.php

   1 <?php
   2 /**
   3  * @file src/Worker/DiscoverPoCo.php
   4  */
   5 namespace Friendica\Worker;
   6
   7 use Friendica\Core\Cache;
   8 use Friendica\Core\Config;
   9 use Friendica\Core\Logger;
  10 use Friendica\Core\Protocol;
  11 use Friendica\Core\Worker;
  12 use Friendica\Database\DBA;
  13 use Friendica\Model\GContact;
  14 use Friendica\Model\Contact;
  15 use Friendica\Model\GServer;
  16 use Friendica\Network\Probe;
  17 use Friendica\Protocol\PortableContact;
  18 use Friendica\Util\DateTimeFormat;
  19 use Friendica\Util\Network;
  20 use Friendica\Util\Strings;
  21
  22 class DiscoverPoCo
  23 {
  24         /// @todo Clean up this mess of a parameter hell and split it in several classes
  25         public static function execute($command = '', $param1 = '', $param2 = '', $param3 = '', $param4 = '')
  26         {
  27                 /*
  28                 This function can be called in these ways:
  29                 - checkcontact: Updates gcontact entries
  30                 - suggestions: Discover other servers for their contacts.
  31                 - server <poco url>: Searches for the poco server list. "poco url" is base64 encoded.
  32                 - update_server: Frequently check the first 250 servers for vitality.
  33                 - PortableContact::load: Load POCO data from a given POCO address
  34                 */
  35
  36                 $search = "";
  37                 $mode = 0;
  38                 if (($command == "checkcontact") && Config::get('system', 'poco_completion')) {
  39                         self::discoverUsers();
  40                 } elseif ($command == "suggestions") {
  41                         GContact::updateSuggestions();
  42                 } elseif ($command == "server") {
  43                         $server_url = $param1;
  44                         if ($server_url == "") {
  45                                 return;
  46                         }
  47                         $server_url = filter_var($server_url, FILTER_SANITIZE_URL);
  48                         if (substr(Strings::normaliseLink($server_url), 0, 7) != "http://") {
  49                                 return;
  50                         }
  51                         $result = "Checking server ".$server_url." - ";
  52                         $ret = GServer::check($server_url);
  53                         if ($ret) {
  54                                 $result .= "success";
  55                         } else {
  56                                 $result .= "failed";
  57                         }
  58                         Logger::log($result, Logger::DEBUG);
  59                 } elseif ($command == "update_server") {
  60                         self::updateServer();
  61                 } elseif ($command == "load") {
  62                         if (!empty($param4)) {
  63                                 $url = $param4;
  64                         } else {
  65                                 $url = '';
  66                         }
  67                         PortableContact::load(intval($param1), intval($param2), intval($param3), $url);
  68                 } elseif ($command !== "") {
  69                         Logger::log("Unknown or missing parameter ".$command."\n");
  70                         return;
  71                 }
  72
  73                 Logger::log('start '.$search);
  74
  75                 if (($mode == 0) && ($search == "") && (Config::get('system', 'poco_discovery') != PortableContact::DISABLED)) {
  76                         // Query Friendica and Hubzilla servers for their users
  77                         PortableContact::discover();
  78
  79                         // Query GNU Social servers for their users ("statistics" addon has to be enabled on the GS server)
  80                         if (!Config::get('system', 'ostatus_disabled')) {
  81                                 GContact::discoverGsUsers();
  82                         }
  83                 }
  84
  85                 Logger::log('end '.$search);
  86
  87                 return;
  88         }
  89
  90         /**
  91          * @brief Updates the first 250 servers
  92          *
  93          */
  94         private static function updateServer() {
  95                 $r = q("SELECT `url`, `created`, `last_failure`, `last_contact` FROM `gserver` ORDER BY rand()");
  96
  97                 if (!DBA::isResult($r)) {
  98                         return;
  99                 }
 100
 101                 $updated = 0;
 102
 103                 foreach ($r AS $server) {
 104                         if (!PortableContact::updateNeeded($server["created"], "", $server["last_failure"], $server["last_contact"])) {
 105                                 continue;
 106                         }
 107                         Logger::log('Update server status for server '.$server["url"], Logger::DEBUG);
 108
 109                         Worker::add(PRIORITY_LOW, "DiscoverPoCo", "server", $server["url"]);
 110
 111                         if (++$updated > 250) {
 112                                 return;
 113                         }
 114                 }
 115         }
 116
 117         private static function discoverUsers() {
 118                 Logger::log("Discover users", Logger::DEBUG);
 119
 120                 $starttime = time();
 121
 122                 $users = q("SELECT `url`, `created`, `updated`, `last_failure`, `last_contact`, `server_url`, `network` FROM `gcontact`
 123                                 WHERE `last_contact` < UTC_TIMESTAMP - INTERVAL 1 MONTH AND
 124                                         `last_failure` < UTC_TIMESTAMP - INTERVAL 1 MONTH AND
 125                                         `network` IN ('%s', '%s', '%s', '%s', '') ORDER BY rand()",
 126                                 DBA::escape(Protocol::DFRN), DBA::escape(Protocol::DIASPORA),
 127                                 DBA::escape(Protocol::OSTATUS), DBA::escape(Protocol::FEED));
 128
 129                 if (!$users) {
 130                         return;
 131                 }
 132                 $checked = 0;
 133
 134                 foreach ($users AS $user) {
 135
 136                         $urlparts = parse_url($user["url"]);
 137                         if (!isset($urlparts["scheme"])) {
 138                                 DBA::update('gcontact', ['network' => Protocol::PHANTOM],
 139                                         ['nurl' => Strings::normaliseLink($user["url"])]);
 140                                 continue;
 141                          }
 142
 143                         if (in_array($urlparts["host"], ["twitter.com", "identi.ca"])) {
 144                                 $networks = ["twitter.com" => Protocol::TWITTER, "identi.ca" => Protocol::PUMPIO];
 145
 146                                 DBA::update('gcontact', ['network' => $networks[$urlparts["host"]]],
 147                                         ['nurl' => Strings::normaliseLink($user["url"])]);
 148                                 continue;
 149                         }
 150
 151                         $server_url = Contact::getBasepath($user["url"]);
 152                         $force_update = false;
 153
 154                         if ($user["server_url"] != "") {
 155
 156                                 $force_update = (Strings::normaliseLink($user["server_url"]) != Strings::normaliseLink($server_url));
 157
 158                                 $server_url = $user["server_url"];
 159                         }
 160
 161                         if ((($server_url == "") && ($user["network"] == Protocol::FEED)) || $force_update || GServer::check($server_url, $user["network"])) {
 162                                 Logger::log('Check profile '.$user["url"]);
 163                                 Worker::add(PRIORITY_LOW, 'UpdateGContact', $user['url'], 'force');
 164
 165                                 if (++$checked > 100) {
 166                                         return;
 167                                 }
 168                         } else {
 169                                 DBA::update('gcontact', ['last_failure' => DateTimeFormat::utcNow()],
 170                                         ['nurl' => Strings::normaliseLink($user["url"])]);
 171                         }
 172
 173                         // Quit the loop after 3 minutes
 174                         if (time() > ($starttime + 180)) {
 175                                 return;
 176                         }
 177                 }
 178         }
 179 }