include/poller.php

   1 <?php
   2
   3 require_once("boot.php");
   4
   5 function poller_run($argv, $argc){
   6         global $a, $db;
   7
   8         if(is_null($a)) {
   9                 $a = new App;
  10         }
  11
  12         if(is_null($db)) {
  13             @include(".htconfig.php");
  14         require_once("dba.php");
  15             $db = new dba($db_host, $db_user, $db_pass, $db_data);
  16         unset($db_host, $db_user, $db_pass, $db_data);
  17         };
  18
  19         $mbox = null;
  20
  21         require_once('session.php');
  22         require_once('datetime.php');
  23         require_once('simplepie/simplepie.inc');
  24         require_once('include/items.php');
  25         require_once('include/Contact.php');
  26         require_once('include/email.php');
  27
  28         $a->set_baseurl(get_config('system','url'));
  29
  30         logger('poller: start');
  31
  32         // run queue delivery process in the background
  33
  34         proc_run('php',"include/queue.php");
  35
  36         // once daily run expire in background
  37
  38         $d1 = get_config('system','last_expire_day');
  39         $d2 = intval(datetime_convert('UTC','UTC','now','d'));
  40
  41         if($d2 != intval($d1)) {
  42                 set_config('system','last_expire_day',$d2);
  43                 proc_run('php','include/expire.php');
  44         }
  45
  46
  47         // clear old cache
  48         q("DELETE FROM `cache` WHERE `updated` < '%s'",
  49                 dbesc(datetime_convert('UTC','UTC',"now - 30 days")));
  50
  51         $manual_id  = 0;
  52         $hub_update = false;
  53         $force      = false;
  54
  55         if(($argc > 1) && ($argv[1] == 'force'))
  56                 $force = true;
  57
  58         if(($argc > 1) && intval($argv[1])) {
  59                 $manual_id = intval($argv[1]);
  60                 $force     = true;
  61         }
  62
  63         $sql_extra = (($manual_id) ? " AND `id` = $manual_id " : "");
  64
  65         $d = datetime_convert();
  66         call_hooks('cron', $d);
  67
  68         reload_plugins();
  69
  70         $contacts = q("SELECT `id` FROM `contact`
  71                 WHERE ( `rel` = %d OR `rel` = %d ) AND `poll` != ''
  72                 $sql_extra
  73                 AND `self` = 0 AND `blocked` = 0 AND `readonly` = 0 ORDER BY RAND()",
  74                 intval(REL_FAN),
  75                 intval(REL_BUD)
  76         );
  77
  78         if(! count($contacts)) {
  79                 return;
  80         }
  81
  82         foreach($contacts as $c) {
  83
  84                 $res = q("SELECT * FROM `contact` WHERE `id` = %d LIMIT 1",
  85                         intval($c['id'])
  86                 );
  87
  88                 if(! count($res))
  89                         continue;
  90
  91                 foreach($res as $contact) {
  92
  93                         $xml = false;
  94
  95                         if($manual_id)
  96                                 $contact['last-update'] = '0000-00-00 00:00:00';
  97
  98                         if($contact['priority'] || $contact['subhub']) {
  99
 100                                 $hub_update = true;
 101                                 $update     = false;
 102
 103                                 $t = $contact['last-update'];
 104
 105                                 // We should be getting everything via a hub. But just to be sure, let's check once a day.
 106                                 // (You can make this more or less frequent if desired by setting 'pushpoll_frequency' appropriately)
 107                                 // This also lets us update our subscription to the hub, and add or replace hubs in case it
 108                                 // changed. We will only update hubs once a day, regardless of 'pushpoll_frequency'.
 109
 110
 111                                 if($contact['subhub']) {
 112                                         $interval = get_config('system','pushpoll_frequency');
 113                                         $contact['priority'] = (($interval !== false) ? intval($interval) : 3);
 114                                         $hub_update = false;
 115
 116                                         if((datetime_convert('UTC','UTC', 'now') > datetime_convert('UTC','UTC', $t . " + 1 day")) || $force)
 117                                                         $hub_update = true;
 118                                 }
 119
 120                                 /**
 121                                  * Based on $contact['priority'], should we poll this site now? Or later?
 122                                  */
 123
 124                                 switch ($contact['priority']) {
 125                                         case 5:
 126                                                 if(datetime_convert('UTC','UTC', 'now') > datetime_convert('UTC','UTC', $t . " + 1 month"))
 127                                                         $update = true;
 128                                                 break;
 129                                         case 4:
 130                                                 if(datetime_convert('UTC','UTC', 'now') > datetime_convert('UTC','UTC', $t . " + 1 week"))
 131                                                         $update = true;
 132                                                 break;
 133                                         case 3:
 134                                                 if(datetime_convert('UTC','UTC', 'now') > datetime_convert('UTC','UTC', $t . " + 1 day"))
 135                                                         $update = true;
 136                                                 break;
 137                                         case 2:
 138                                                 if(datetime_convert('UTC','UTC', 'now') > datetime_convert('UTC','UTC', $t . " + 12 hour"))
 139                                                         $update = true;
 140                                                 break;
 141                                         case 1:
 142                                         default:
 143                                                 if(datetime_convert('UTC','UTC', 'now') > datetime_convert('UTC','UTC', $t . " + 1 hour"))
 144                                                         $update = true;
 145                                                 break;
 146                                 }
 147                                 if((! $update) && (! $force))
 148                                         continue;
 149                         }
 150
 151                         $importer_uid = $contact['uid'];
 152
 153                         $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 1 LIMIT 1",
 154                                 intval($importer_uid)
 155                         );
 156                         if(! count($r))
 157                                 continue;
 158
 159                         $importer = $r[0];
 160
 161                         logger("poller: poll: IMPORTER: {$importer['name']}, CONTACT: {$contact['name']}");
 162
 163                         $last_update = (($contact['last-update'] === '0000-00-00 00:00:00')
 164                                 ? datetime_convert('UTC','UTC','now - 30 days', ATOM_TIME)
 165                                 : datetime_convert('UTC','UTC',$contact['last-update'], ATOM_TIME)
 166                         );
 167
 168                         if($contact['network'] === NETWORK_DFRN) {
 169
 170                                 $idtosend = $orig_id = (($contact['dfrn-id']) ? $contact['dfrn-id'] : $contact['issued-id']);
 171
 172                                 if(intval($contact['duplex']) && $contact['dfrn-id'])
 173                                         $idtosend = '0:' . $orig_id;
 174                                 if(intval($contact['duplex']) && $contact['issued-id'])
 175                                         $idtosend = '1:' . $orig_id;
 176
 177                                 // they have permission to write to us. We already filtered this in the contact query.
 178                                 $perm = 'rw';
 179
 180                                 $url = $contact['poll'] . '?dfrn_id=' . $idtosend
 181                                         . '&dfrn_version=' . DFRN_PROTOCOL_VERSION
 182                                         . '&type=data&last_update=' . $last_update
 183                                         . '&perm=' . $perm ;
 184
 185                                 $handshake_xml = fetch_url($url);
 186
 187                                 logger('poller: handshake with url ' . $url . ' returns xml: ' . $handshake_xml, LOGGER_DATA);
 188
 189
 190                                 if(! $handshake_xml) {
 191                                         logger("poller: $url appears to be dead - marking for death ");
 192                                         // dead connection - might be a transient event, or this might
 193                                         // mean the software was uninstalled or the domain expired.
 194                                         // Will keep trying for one month.
 195                                         mark_for_death($contact);
 196
 197                                         // set the last-update so we don't keep polling
 198
 199                                         $r = q("UPDATE `contact` SET `last-update` = '%s' WHERE `id` = %d LIMIT 1",
 200                                                 dbesc(datetime_convert()),
 201                                                 intval($contact['id'])
 202                                         );
 203
 204                                         continue;
 205                                 }
 206
 207                                 if(! strstr($handshake_xml,'<?xml')) {
 208                                         logger('poller: response from ' . $url . ' did not contain XML.');
 209                                         $r = q("UPDATE `contact` SET `last-update` = '%s' WHERE `id` = %d LIMIT 1",
 210                                                 dbesc(datetime_convert()),
 211                                                 intval($contact['id'])
 212                                         );
 213                                         continue;
 214                                 }
 215
 216
 217                                 $res = parse_xml_string($handshake_xml);
 218
 219                                 if(intval($res->status) == 1) {
 220                                         logger("poller: $url replied status 1 - marking for death ");
 221
 222                                         // we may not be friends anymore. Will keep trying for one month.
 223                                         // set the last-update so we don't keep polling
 224
 225                                         $r = q("UPDATE `contact` SET `last-update` = '%s' WHERE `id` = %d LIMIT 1",
 226                                                 dbesc(datetime_convert()),
 227                                                 intval($contact['id'])
 228                                         );
 229
 230                                         mark_for_death($contact);
 231                                 }
 232                                 else {
 233                                         if($contact['term-date'] != '0000-00-00 00:00:00') {
 234                                                 logger("poller: $url back from the dead - removing mark for death");
 235                                                 unmark_for_death($contact);
 236                                         }
 237                                 }
 238
 239                                 if((intval($res->status) != 0) || (! strlen($res->challenge)) || (! strlen($res->dfrn_id)))
 240                                         continue;
 241
 242                                 $postvars = array();
 243
 244                                 $sent_dfrn_id = hex2bin((string) $res->dfrn_id);
 245                                 $challenge    = hex2bin((string) $res->challenge);
 246
 247                                 $final_dfrn_id = '';
 248
 249                                 if(($contact['duplex']) && strlen($contact['prvkey'])) {
 250                                         openssl_private_decrypt($sent_dfrn_id,$final_dfrn_id,$contact['prvkey']);
 251                                         openssl_private_decrypt($challenge,$postvars['challenge'],$contact['prvkey']);
 252                                 }
 253                                 else {
 254                                         openssl_public_decrypt($sent_dfrn_id,$final_dfrn_id,$contact['pubkey']);
 255                                         openssl_public_decrypt($challenge,$postvars['challenge'],$contact['pubkey']);
 256                                 }
 257
 258                                 $final_dfrn_id = substr($final_dfrn_id, 0, strpos($final_dfrn_id, '.'));
 259
 260                                 if(strpos($final_dfrn_id,':') == 1)
 261                                         $final_dfrn_id = substr($final_dfrn_id,2);
 262
 263                                 if($final_dfrn_id != $orig_id) {
 264                                         logger('poller: ID did not decode: ' . $contact['id'] . ' orig: ' . $orig_id . ' final: ' . $final_dfrn_id);
 265                                         // did not decode properly - cannot trust this site
 266                                         continue;
 267                                 }
 268
 269                                 $postvars['dfrn_id'] = $idtosend;
 270                                 $postvars['dfrn_version'] = DFRN_PROTOCOL_VERSION;
 271                                 $postvars['perm'] = 'rw';
 272
 273                                 $xml = post_url($contact['poll'],$postvars);
 274                         }
 275                         elseif(($contact['network'] === NETWORK_OSTATUS)
 276                                 || ($contact['network'] === NETWORK_DIASPORA)
 277                                 || ($contact['network'] === NETWORK_FEED) ) {
 278
 279                                 // Upgrading DB fields from an older Friendika version
 280                                 // Will only do this once per notify-enabled OStatus contact
 281
 282                                 if(($contact['notify']) && (! $contact['writable'])) {
 283                                         q("UPDATE `contact` SET `writable` = 1 WHERE `id` = %d LIMIT 1",
 284                                                 intval($contact['id'])
 285                                         );
 286                                 }
 287
 288                                 $xml = fetch_url($contact['poll']);
 289                         }
 290                         elseif($contact['network'] === NETWORK_MAIL) {
 291                                 if(! $mbox) {
 292                                         $x = q("SELECT `prvkey` FROM `user` WHERE `uid` = $d LIMIT 1",
 293                                                 intval($importer_uid)
 294                                         );
 295                                         $r = q("SELECT * FROM `mailacct` WHERE `uid` = %d LIMIT 1",
 296                                                 intval($importer_uid)
 297                                         );
 298                                         if(count($x) && count($r)) {
 299                                             $mailbox = construct_mailbox_name($r[0]);
 300                                                 $password = '';
 301                                                 openssl_private_decrypt($r[0]['pass'],$password,$x[0]['prvkey']);
 302                                                 $mbox = email_connect($mailbox,$r[0]['user'],$password);
 303                                                 unset($password);
 304                                         }
 305                                 }
 306                                 if($mbox) {
 307                                         $msgs = email_poll($mbox,$contact['addr']);
 308                                         if(count($msgs)) {
 309                                                         // TODO: loop through, fetch, check duplicates, and import
 310                                         }
 311                                 }
 312                         }
 313                         elseif($contact['network'] === NETWORK_FACEBOOK) {
 314                                 // TODO: work in progress
 315                         }
 316
 317                         if($xml) {
 318                                 logger('poller: received xml : ' . $xml, LOGGER_DATA);
 319
 320                                 if(! strstr($xml,'<?xml')) {
 321                                         logger('poller: post_handshake: response from ' . $url . ' did not contain XML.');
 322                                         $r = q("UPDATE `contact` SET `last-update` = '%s' WHERE `id` = %d LIMIT 1",
 323                                                 dbesc(datetime_convert()),
 324                                                 intval($contact['id'])
 325                                         );
 326                                         continue;
 327                                 }
 328
 329
 330                                 consume_feed($xml,$importer,$contact,$hub,1, true);
 331
 332                                 // do it twice. Ensures that children of parents which may be later in the stream aren't tossed
 333
 334                                 consume_feed($xml,$importer,$contact,$hub,1);
 335
 336
 337                                 if((strlen($hub)) && ($hub_update) && (($contact['rel'] == REL_BUD) || (($contact['network'] === NETWORK_OSTATUS) && (! $contact['readonly'])))) {
 338                                         logger('poller: subscribing to hub(s) : ' . $hub . ' contact name : ' . $contact['name'] . ' local user : ' . $importer['name']);
 339                                         $hubs = explode(',', $hub);
 340                                         if(count($hubs)) {
 341                                                 foreach($hubs as $h) {
 342                                                         $h = trim($h);
 343                                                         if(! strlen($h))
 344                                                                 continue;
 345                                                         subscribe_to_hub($h,$importer,$contact);
 346                                                 }
 347                                         }
 348                                 }
 349                         }
 350
 351                         $updated = datetime_convert();
 352
 353                         $r = q("UPDATE `contact` SET `last-update` = '%s', `success_update` = '%s' WHERE `id` = %d LIMIT 1",
 354                                 dbesc($updated),
 355                                 dbesc($updated),
 356                                 intval($contact['id'])
 357                         );
 358
 359                         // loop - next contact
 360                 }
 361         }
 362
 363         return;
 364 }
 365
 366 if (array_search(__file__,get_included_files())===0){
 367   poller_run($argv,$argc);
 368   killme();
 369 }