include/discover_poco.php

   1 <?php
   2
   3 use \Friendica\Core\Config;
   4
   5 require_once("include/socgraph.php");
   6 require_once('include/datetime.php');
   7
   8 function discover_poco_run(&$argv, &$argc){
   9
  10         if (($argc > 2) && ($argv[1] == "dirsearch")) {
  11                 $search = urldecode($argv[2]);
  12                 $mode = 1;
  13         } elseif(($argc == 2) && ($argv[1] == "checkcontact")) {
  14                 $mode = 2;
  15         } elseif(($argc == 2) && ($argv[1] == "suggestions")) {
  16                 $mode = 3;
  17         } elseif ($argc == 1) {
  18                 $search = "";
  19                 $mode = 0;
  20         } else
  21                 die("Unknown or missing parameter ".$argv[1]."\n");
  22
  23         logger('start '.$search);
  24
  25         if ($mode==3)
  26                 update_suggestions();
  27         elseif (($mode == 2) AND get_config('system','poco_completion'))
  28                 discover_users();
  29         elseif (($mode == 1) AND ($search != "") and get_config('system','poco_local_search')) {
  30                 discover_directory($search);
  31                 gs_search_user($search);
  32         } elseif (($mode == 0) AND ($search == "") and (get_config('system','poco_discovery') > 0)) {
  33                 // Query Friendica and Hubzilla servers for their users
  34                 poco_discover();
  35
  36                 // Query GNU Social servers for their users ("statistics" addon has to be enabled on the GS server)
  37                 if (!get_config('system','ostatus_disabled'))
  38                         gs_discover();
  39         }
  40
  41         logger('end '.$search);
  42
  43         return;
  44 }
  45
  46 function discover_users() {
  47         logger("Discover users", LOGGER_DEBUG);
  48
  49         $users = q("SELECT `url`, `created`, `updated`, `last_failure`, `last_contact`, `server_url` FROM `gcontact`
  50                         WHERE `last_contact` < UTC_TIMESTAMP - INTERVAL 1 MONTH AND
  51                                 `last_failure` < UTC_TIMESTAMP - INTERVAL 1 MONTH AND
  52                                 `network` IN ('%s', '%s', '%s', '%s', '') ORDER BY rand()",
  53                         dbesc(NETWORK_DFRN), dbesc(NETWORK_DIASPORA),
  54                         dbesc(NETWORK_OSTATUS), dbesc(NETWORK_FEED));
  55
  56         if (!$users)
  57                 return;
  58
  59         $checked = 0;
  60
  61         foreach ($users AS $user) {
  62
  63                 $urlparts = parse_url($user["url"]);
  64                 if (!isset($urlparts["scheme"])) {
  65                         q("UPDATE `gcontact` SET `network` = '%s' WHERE `nurl` = '%s'",
  66                                 dbesc(NETWORK_PHANTOM), dbesc(normalise_link($user["url"])));
  67                         continue;
  68                  }
  69
  70                 if (in_array($urlparts["host"], array("www.facebook.com", "facebook.com", "twitter.com",
  71                                                         "identi.ca", "alpha.app.net"))) {
  72                         $networks = array("www.facebook.com" => NETWORK_FACEBOOK,
  73                                         "facebook.com" => NETWORK_FACEBOOK,
  74                                         "twitter.com" => NETWORK_TWITTER,
  75                                         "identi.ca" => NETWORK_PUMPIO,
  76                                         "alpha.app.net" => NETWORK_APPNET);
  77
  78                         q("UPDATE `gcontact` SET `network` = '%s' WHERE `nurl` = '%s'",
  79                                 dbesc($networks[$urlparts["host"]]), dbesc(normalise_link($user["url"])));
  80                         continue;
  81                 }
  82
  83                 if ($user["server_url"] != "")
  84                         $server_url = $user["server_url"];
  85                 else
  86                         $server_url = poco_detect_server($user["url"]);
  87
  88                 if (($server_url == "") OR poco_check_server($server_url, $gcontacts[0]["network"])) {
  89                         logger('Check user '.$user["url"]);
  90                         poco_last_updated($user["url"], true);
  91
  92                         if (++$checked > 100)
  93                                 return;
  94                 } else
  95                         q("UPDATE `gcontact` SET `last_failure` = '%s' WHERE `nurl` = '%s'",
  96                                 dbesc(datetime_convert()), dbesc(normalise_link($user["url"])));
  97         }
  98 }
  99
 100 function discover_directory($search) {
 101
 102         $data = Cache::get("dirsearch:".$search);
 103         if (!is_null($data)){
 104                 // Only search for the same item every 24 hours
 105                 if (time() < $data + (60 * 60 * 24)) {
 106                         logger("Already searched for ".$search." in the last 24 hours", LOGGER_DEBUG);
 107                         return;
 108                 }
 109         }
 110
 111         $x = fetch_url(get_server()."/lsearch?p=1&n=500&search=".urlencode($search));
 112         $j = json_decode($x);
 113
 114         if(count($j->results))
 115                 foreach($j->results as $jj) {
 116                         // Check if the contact already exists
 117                         $exists = q("SELECT `id`, `last_contact`, `last_failure`, `updated` FROM `gcontact` WHERE `nurl` = '%s'", normalise_link($jj->url));
 118                         if ($exists) {
 119                                 logger("Profile ".$jj->url." already exists (".$search.")", LOGGER_DEBUG);
 120
 121                                 if (($exists[0]["last_contact"] < $exists[0]["last_failure"]) AND
 122                                         ($exists[0]["updated"] < $exists[0]["last_failure"]))
 123                                         continue;
 124
 125                                 // Update the contact
 126                                 poco_last_updated($jj->url);
 127                                 continue;
 128                         }
 129
 130                         // Harcoded paths aren't so good. But in this case it is okay.
 131                         // First: We only will get Friendica contacts (which always are using this url schema)
 132                         // Second: There will be no further problems if we are doing a mistake
 133                         $server_url = preg_replace("=(https?://)(.*)/profile/(.*)=ism", "$1$2", $jj->url);
 134                         if ($server_url != $jj->url)
 135                                 if (!poco_check_server($server_url)) {
 136                                         logger("Friendica server ".$server_url." doesn't answer.", LOGGER_DEBUG);
 137                                         continue;
 138                                 }
 139                                         logger("Friendica server ".$server_url." seems to be okay.", LOGGER_DEBUG);
 140
 141                         logger("Check if profile ".$jj->url." is reachable (".$search.")", LOGGER_DEBUG);
 142                         $data = probe_url($jj->url);
 143                         if ($data["network"] == NETWORK_DFRN) {
 144                                 logger("Add profile ".$jj->url." to local directory (".$search.")", LOGGER_DEBUG);
 145                                 poco_check($data["url"], $data["name"], $data["network"], $data["photo"], "", "", "", $jj->tags, $data["addr"], "", 0);
 146                         }
 147                 }
 148         Cache::set("dirsearch:".$search, time(), CACHE_DAY);
 149 }
 150
 151 /**
 152  * @brief Search for GNU Social user with gstools.org
 153  *
 154  * @param str $search User name
 155  */
 156 function gs_search_user($search) {
 157
 158         $a = get_app();
 159
 160         $url = "http://gstools.org/api/users_search/".urlencode($search);
 161
 162         $result = z_fetch_url($url);
 163         if (!$result["success"])
 164                 return false;
 165
 166         $contacts = json_decode($result["body"]);
 167
 168         if ($contacts->status == 'ERROR')
 169                 return false;
 170
 171         foreach($contacts->data AS $user) {
 172                 $contact = probe_url($user->site_address."/".$user->name);
 173                 if ($contact["network"] != NETWORK_PHANTOM) {
 174                         $contact["about"] = $user->description;
 175                         update_gcontact($contact);
 176                 }
 177         }
 178 }