include/discover_poco.php

   1 <?php
   2
   3 use \Friendica\Core\Config;
   4
   5 require_once("boot.php");
   6 require_once("include/socgraph.php");
   7
   8 function discover_poco_run(&$argv, &$argc){
   9         global $a, $db;
  10
  11         if(is_null($a)) {
  12                 $a = new App;
  13         }
  14
  15         if(is_null($db)) {
  16             @include(".htconfig.php");
  17         require_once("include/dba.php");
  18             $db = new dba($db_host, $db_user, $db_pass, $db_data);
  19         unset($db_host, $db_user, $db_pass, $db_data);
  20         };
  21
  22         require_once('include/session.php');
  23         require_once('include/datetime.php');
  24
  25         Config::load();
  26
  27         // Don't check this stuff if the function is called by the poller
  28         if (App::callstack() != "poller_run")
  29                 if ($a->maxload_reached())
  30                         return;
  31
  32         if(($argc > 2) && ($argv[1] == "dirsearch")) {
  33                 $search = urldecode($argv[2]);
  34                 $mode = 1;
  35         } elseif(($argc == 2) && ($argv[1] == "checkcontact")) {
  36                 $mode = 2;
  37         } elseif(($argc == 2) && ($argv[1] == "suggestions")) {
  38                 $mode = 3;
  39         } elseif(($argc == 3) && ($argv[1] == "server")) {
  40                 $mode = 4;
  41         } elseif ($argc == 1) {
  42                 $search = "";
  43                 $mode = 0;
  44         } else {
  45                 die("Unknown or missing parameter ".$argv[1]."\n");
  46         }
  47
  48         // Don't check this stuff if the function is called by the poller
  49         if (App::callstack() != "poller_run")
  50                 if (App::is_already_running('discover_poco'.$mode.urlencode($search), 'include/discover_poco.php', 1140))
  51                         return;
  52
  53         $a->set_baseurl(get_config('system','url'));
  54
  55         load_hooks();
  56
  57         logger('start '.$search);
  58
  59         if ($mode == 4) {
  60                 $server_url = base64_decode($argv[2]);
  61                 if ($server_url == "") {
  62                         return;
  63                 }
  64                 $server_url = filter_var($server_url, FILTER_SANITIZE_URL);
  65                 if (substr(normalise_link($server_url), 0, 7) != "http://") {
  66                         return;
  67                 }
  68                 $result = "Checking server ".$server_url." - ";
  69                 $ret = poco_check_server($server_url);
  70                 if ($ret) {
  71                         $result .= "success";
  72                 } else {
  73                         $result .= "failed";
  74                 }
  75                 logger($result, LOGGER_DEBUG);
  76         } elseif ($mode == 3) {
  77                 update_suggestions();
  78         } elseif (($mode == 2) AND get_config('system','poco_completion')) {
  79                 discover_users();
  80         } elseif (($mode == 1) AND ($search != "") and get_config('system','poco_local_search')) {
  81                 discover_directory($search);
  82                 gs_search_user($search);
  83         } elseif (($mode == 0) AND ($search == "") and (get_config('system','poco_discovery') > 0)) {
  84                 // Query Friendica and Hubzilla servers for their users
  85                 poco_discover();
  86
  87                 // Query GNU Social servers for their users ("statistics" addon has to be enabled on the GS server)
  88                 if (!get_config('system','ostatus_disabled'))
  89                         gs_discover();
  90         }
  91
  92         logger('end '.$search);
  93
  94         return;
  95 }
  96
  97 function discover_users() {
  98         logger("Discover users", LOGGER_DEBUG);
  99
 100         $users = q("SELECT `url`, `created`, `updated`, `last_failure`, `last_contact`, `server_url` FROM `gcontact`
 101                         WHERE `last_contact` < UTC_TIMESTAMP - INTERVAL 1 MONTH AND
 102                                 `last_failure` < UTC_TIMESTAMP - INTERVAL 1 MONTH AND
 103                                 `network` IN ('%s', '%s', '%s', '%s', '') ORDER BY rand()",
 104                         dbesc(NETWORK_DFRN), dbesc(NETWORK_DIASPORA),
 105                         dbesc(NETWORK_OSTATUS), dbesc(NETWORK_FEED));
 106
 107         if (!$users)
 108                 return;
 109
 110         $checked = 0;
 111
 112         foreach ($users AS $user) {
 113
 114                 $urlparts = parse_url($user["url"]);
 115                 if (!isset($urlparts["scheme"])) {
 116                         q("UPDATE `gcontact` SET `network` = '%s' WHERE `nurl` = '%s'",
 117                                 dbesc(NETWORK_PHANTOM), dbesc(normalise_link($user["url"])));
 118                         continue;
 119                  }
 120
 121                 if (in_array($urlparts["host"], array("www.facebook.com", "facebook.com", "twitter.com",
 122                                                         "identi.ca", "alpha.app.net"))) {
 123                         $networks = array("www.facebook.com" => NETWORK_FACEBOOK,
 124                                         "facebook.com" => NETWORK_FACEBOOK,
 125                                         "twitter.com" => NETWORK_TWITTER,
 126                                         "identi.ca" => NETWORK_PUMPIO,
 127                                         "alpha.app.net" => NETWORK_APPNET);
 128
 129                         q("UPDATE `gcontact` SET `network` = '%s' WHERE `nurl` = '%s'",
 130                                 dbesc($networks[$urlparts["host"]]), dbesc(normalise_link($user["url"])));
 131                         continue;
 132                 }
 133
 134                 if ($user["server_url"] != "")
 135                         $server_url = $user["server_url"];
 136                 else
 137                         $server_url = poco_detect_server($user["url"]);
 138
 139                 if (($server_url == "") OR poco_check_server($server_url, $gcontacts[0]["network"])) {
 140                         logger('Check user '.$user["url"]);
 141                         poco_last_updated($user["url"], true);
 142
 143                         if (++$checked > 100)
 144                                 return;
 145                 } else
 146                         q("UPDATE `gcontact` SET `last_failure` = '%s' WHERE `nurl` = '%s'",
 147                                 dbesc(datetime_convert()), dbesc(normalise_link($user["url"])));
 148         }
 149 }
 150
 151 function discover_directory($search) {
 152
 153         $data = Cache::get("dirsearch:".$search);
 154         if (!is_null($data)){
 155                 // Only search for the same item every 24 hours
 156                 if (time() < $data + (60 * 60 * 24)) {
 157                         logger("Already searched for ".$search." in the last 24 hours", LOGGER_DEBUG);
 158                         return;
 159                 }
 160         }
 161
 162         $x = fetch_url(get_server()."/lsearch?p=1&n=500&search=".urlencode($search));
 163         $j = json_decode($x);
 164
 165         if(count($j->results))
 166                 foreach($j->results as $jj) {
 167                         // Check if the contact already exists
 168                         $exists = q("SELECT `id`, `last_contact`, `last_failure`, `updated` FROM `gcontact` WHERE `nurl` = '%s'", normalise_link($jj->url));
 169                         if ($exists) {
 170                                 logger("Profile ".$jj->url." already exists (".$search.")", LOGGER_DEBUG);
 171
 172                                 if (($exists[0]["last_contact"] < $exists[0]["last_failure"]) AND
 173                                         ($exists[0]["updated"] < $exists[0]["last_failure"]))
 174                                         continue;
 175
 176                                 // Update the contact
 177                                 poco_last_updated($jj->url);
 178                                 continue;
 179                         }
 180
 181                         // Harcoded paths aren't so good. But in this case it is okay.
 182                         // First: We only will get Friendica contacts (which always are using this url schema)
 183                         // Second: There will be no further problems if we are doing a mistake
 184                         $server_url = preg_replace("=(https?://)(.*)/profile/(.*)=ism", "$1$2", $jj->url);
 185                         if ($server_url != $jj->url)
 186                                 if (!poco_check_server($server_url)) {
 187                                         logger("Friendica server ".$server_url." doesn't answer.", LOGGER_DEBUG);
 188                                         continue;
 189                                 }
 190                                         logger("Friendica server ".$server_url." seems to be okay.", LOGGER_DEBUG);
 191
 192                         logger("Check if profile ".$jj->url." is reachable (".$search.")", LOGGER_DEBUG);
 193                         $data = probe_url($jj->url);
 194                         if ($data["network"] == NETWORK_DFRN) {
 195                                 logger("Add profile ".$jj->url." to local directory (".$search.")", LOGGER_DEBUG);
 196                                 poco_check($data["url"], $data["name"], $data["network"], $data["photo"], "", "", "", $jj->tags, $data["addr"], "", 0);
 197                         }
 198                 }
 199         Cache::set("dirsearch:".$search, time(), CACHE_DAY);
 200 }
 201
 202 /**
 203  * @brief Search for GNU Social user with gstools.org
 204  *
 205  * @param str $search User name
 206  */
 207 function gs_search_user($search) {
 208
 209         // Currently disabled, since the service isn't available anymore.
 210         // It is not removed since I hope that there will be a successor.
 211         return false;
 212
 213         $a = get_app();
 214
 215         $url = "http://gstools.org/api/users_search/".urlencode($search);
 216
 217         $result = z_fetch_url($url);
 218         if (!$result["success"])
 219                 return false;
 220
 221         $contacts = json_decode($result["body"]);
 222
 223         if ($contacts->status == 'ERROR')
 224                 return false;
 225
 226         foreach($contacts->data AS $user) {
 227                 $contact = probe_url($user->site_address."/".$user->name);
 228                 if ($contact["network"] != NETWORK_PHANTOM) {
 229                         $contact["about"] = $user->description;
 230                         update_gcontact($contact);
 231                 }
 232         }
 233 }
 234
 235
 236 if (array_search(__file__,get_included_files())===0){
 237   discover_poco_run($_SERVER["argv"],$_SERVER["argc"]);
 238   killme();
 239 }