include/discover_poco.php

   1 <?php
   2
   3 require_once("boot.php");
   4 require_once("include/socgraph.php");
   5
   6
   7 function discover_poco_run(&$argv, &$argc){
   8         global $a, $db;
   9
  10         if(is_null($a)) {
  11                 $a = new App;
  12         }
  13
  14         if(is_null($db)) {
  15             @include(".htconfig.php");
  16         require_once("include/dba.php");
  17             $db = new dba($db_host, $db_user, $db_pass, $db_data);
  18         unset($db_host, $db_user, $db_pass, $db_data);
  19         };
  20
  21         require_once('include/session.php');
  22         require_once('include/datetime.php');
  23         require_once('include/pidfile.php');
  24
  25         load_config('config');
  26         load_config('system');
  27
  28         $maxsysload = intval(get_config('system','maxloadavg'));
  29         if($maxsysload < 1)
  30                 $maxsysload = 50;
  31         if(function_exists('sys_getloadavg')) {
  32                 $load = sys_getloadavg();
  33                 if(intval($load[0]) > $maxsysload) {
  34                         logger('system: load ' . $load[0] . ' too high. discover_poco deferred to next scheduled run.');
  35                         return;
  36                 }
  37         }
  38
  39         if(($argc > 2) && ($argv[1] == "dirsearch")) {
  40                 $search = urldecode($argv[2]);
  41                 $mode = 1;
  42         } elseif(($argc == 2) && ($argv[1] == "checkcontact")) {
  43                 $mode = 2;
  44         } elseif ($argc == 1) {
  45                 $search = "";
  46                 $mode = 0;
  47         } else
  48                 die("Unknown or missing parameter ".$argv[1]."\n");
  49
  50         $lockpath = get_lockpath();
  51         if ($lockpath != '') {
  52                 $pidfile = new pidfile($lockpath, 'discover_poco'.$mode.urlencode($search));
  53                 if($pidfile->is_already_running()) {
  54                         logger("discover_poco: Already running");
  55                         if ($pidfile->running_time() > 19*60) {
  56                                 $pidfile->kill();
  57                                 logger("discover_poco: killed stale process");
  58                                 // Calling a new instance
  59                                 if ($mode == 0)
  60                                         proc_run('php','include/discover_poco.php');
  61                         }
  62                         exit;
  63                 }
  64         }
  65
  66         $a->set_baseurl(get_config('system','url'));
  67
  68         load_hooks();
  69
  70         logger('start '.$search);
  71
  72         if (($mode == 2) AND get_config('system','poco_completion'))
  73                 discover_users();
  74         elseif (($mode == 1) AND ($search != "") and get_config('system','poco_local_search'))
  75                 discover_directory($search);
  76         elseif (($mode == 0) AND ($search == "") and (get_config('system','poco_discovery') > 0))
  77                 poco_discover();
  78
  79         logger('end '.$search);
  80
  81         return;
  82 }
  83
  84 function discover_users() {
  85         logger("Discover users", LOGGER_DEBUG);
  86         // To-Do: Maybe we should check old contact as well.
  87         $users = q("SELECT `url`, `created`, `updated`, `last_failure`, `last_contact`, `server_url` FROM `gcontact`
  88                         WHERE `last_contact` = '0000-00-00 00:00:00' AND `last_failure` = '0000-00-00 00:00:00' AND
  89                                 `network` IN ('%s', '%s', '%s') ORDER BY rand()",
  90                         dbesc(NETWORK_DFRN), dbesc(NETWORK_DIASPORA), dbesc(NETWORK_OSTATUS));
  91
  92         if (!$users)
  93                 return;
  94
  95         $checked = 0;
  96
  97         foreach ($users AS $user) {
  98                 if (poco_do_update($user["created"], $user["updated"], $user["last_failure"], $user["last_contact"])) {
  99
 100                         if ($user[0]["server_url"] != "")
 101                                 $server_url = $user[0]["server_url"];
 102                         else
 103                                 $server_url = poco_detect_server($user["url"]);
 104
 105                         if (poco_check_server($server_url, $gcontacts[0]["network"])) {
 106                                 logger('Check user '.$user["url"]);
 107                                 poco_last_updated($user["url"]);
 108
 109                                 if (++$checked > 100)
 110                                         return;
 111                         } else
 112                                 q("UPDATE `gcontact` SET `last_failure` = '%s' WHERE `nurl` = '%s'",
 113                                         dbesc(datetime_convert()), dbesc(normalise_link($user["url"])));
 114                 }
 115         }
 116 }
 117
 118 function discover_directory($search) {
 119
 120         $data = Cache::get("dirsearch:".$search);
 121         if (!is_null($data)){
 122                 // Only search for the same item every 24 hours
 123                 if (time() < $data + (60 * 60 * 24)) {
 124                         logger("Already searched for ".$search." in the last 24 hours", LOGGER_DEBUG);
 125                         return;
 126                 }
 127         }
 128
 129         $x = fetch_url("http://dir.friendica.com/lsearch?p=1&n=500&search=".urlencode($search));
 130         $j = json_decode($x);
 131
 132         if(count($j->results))
 133                 foreach($j->results as $jj) {
 134                         // Check if the contact already exists
 135                         $exists = q("SELECT `id`, `last_contact`, `last_failure`, `updated` FROM `gcontact` WHERE `nurl` = '%s'", normalise_link($jj->url));
 136                         if ($exists) {
 137                                 logger("Profile ".$jj->url." already exists (".$search.")", LOGGER_DEBUG);
 138
 139                                 if (($exists[0]["last_contact"] < $exists[0]["last_failure"]) AND
 140                                         ($exists[0]["updated"] < $exists[0]["last_failure"]))
 141                                         continue;
 142
 143                                 // Update the contact
 144                                 poco_last_updated($jj->url);
 145                                 continue;
 146                         }
 147
 148                         // Harcoded paths aren't so good. But in this case it is okay.
 149                         // First: We only will get Friendica contacts (which always are using this url schema)
 150                         // Second: There will be no further problems if we are doing a mistake
 151                         $server_url = preg_replace("=(https?://)(.*)/profile/(.*)=ism", "$1$2", $jj->url);
 152                         if ($server_url != $jj->url)
 153                                 if (!poco_check_server($server_url)) {
 154                                         logger("Friendica server ".$server_url." doesn't answer.", LOGGER_DEBUG);
 155                                         continue;
 156                                 }
 157                                         logger("Friendica server ".$server_url." seems to be okay.", LOGGER_DEBUG);
 158
 159                         logger("Check if profile ".$jj->url." is reachable (".$search.")", LOGGER_DEBUG);
 160                         $data = probe_url($jj->url);
 161                         if ($data["network"] == NETWORK_DFRN) {
 162                                 logger("Add profile ".$jj->url." to local directory (".$search.")", LOGGER_DEBUG);
 163                                 poco_check($data["url"], $data["name"], $data["network"], $data["photo"], "", "", "", $jj->tags, $data["addr"], "", 0);
 164                         }
 165                 }
 166         Cache::set("dirsearch:".$search, time());
 167 }
 168
 169 if (array_search(__file__,get_included_files())===0){
 170   discover_poco_run($_SERVER["argv"],$_SERVER["argc"]);
 171   killme();
 172 }