addon/facebook/facebook.php

   1 <?php
   2 /**
   3  * Name: Facebook Connector
   4  * Version: 1.0
   5  * Author: Mike Macgirvin <http://macgirvin.com/profile/mike>
   6  */
   7
   8 /**
   9  * Installing the Friendika/Facebook connector
  10  *
  11  * 1. register an API key for your site from developer.facebook.com
  12  *   a. We'd be very happy if you include "Friendika" in the application name
  13  *      to increase name recognition. The Friendika icons are also present
  14  *      in the images directory and may be uploaded as a Facebook app icon.
  15  *      Use images/friendika-16.jpg for the Icon and images/friendika-128.jpg for the Logo.
  16  *   b. The url should be your site URL with a trailing slash.
  17  *      You may use http://portal.friendika.com/privacy as the privacy policy
  18  *      URL unless your site has different requirements, and
  19  *      http://portal.friendika.com as the Terms of Service URL unless
  20  *      you have different requirements. (Friendika is a software application
  21  *      and does not require Terms of Service, though your installation of it might).
  22  *   c. Set the following values in your .htconfig.php file
  23  *         $a->config['facebook']['appid'] = 'xxxxxxxxxxx';
  24  *         $a->config['facebook']['appsecret'] = 'xxxxxxxxxxxxxxx';
  25  *      Replace with the settings Facebook gives you.
  26  * 2. Enable the facebook plugin by including it in .htconfig.php - e.g.
  27  *     $a->config['system']['addon'] = 'plugin1,plugin2,facebook';
  28  * 3. Visit the Facebook Settings section of the "Settings->Plugin Settings" page.
  29  *    and click 'Install Facebook Connector'.
  30  * 4. This will ask you to login to Facebook and grant permission to the
  31  *    plugin to do its stuff. Allow it to do so.
  32  * 5. You're done. To turn it off visit the Plugin Settings page again and
  33  *    'Remove Facebook posting'.
  34  *
  35  * Vidoes and embeds will not be posted if there is no other content. Links
  36  * and images will be converted to a format suitable for the Facebook API and
  37  * long posts truncated - with a link to view the full post.
  38  *
  39  * Facebook contacts will not be able to view private photos, as they are not able to
  40  * authenticate to your site to establish identity. We will address this
  41  * in a future release.
  42  */
  43
  44 define('FACEBOOK_MAXPOSTLEN', 420);
  45
  46 /* declare the facebook_module function so that /facebook url requests will land here */
  47
  48 function facebook_module() {}
  49
  50
  51
  52 /* If a->argv[1] is a nickname, this is a callback from Facebook oauth requests. */
  53
  54 function facebook_init(&$a) {
  55
  56         if($a->argc != 2)
  57                 return;
  58         $nick = $a->argv[1];
  59         if(strlen($nick))
  60                 $r = q("SELECT `uid` FROM `user` WHERE `nickname` = '%s' LIMIT 1",
  61                                 dbesc($nick)
  62                 );
  63         if(! count($r))
  64                 return;
  65
  66         $uid           = $r[0]['uid'];
  67         $auth_code     = (($_GET['code']) ? $_GET['code'] : '');
  68         $error         = (($_GET['error_description']) ? $_GET['error_description'] : '');
  69
  70
  71         if($error)
  72                 logger('facebook_init: Error: ' . $error);
  73
  74         if($auth_code && $uid) {
  75
  76                 $appid = get_config('facebook','appid');
  77                 $appsecret = get_config('facebook', 'appsecret');
  78
  79                 $x = fetch_url('https://graph.facebook.com/oauth/access_token?client_id='
  80                         . $appid . '&client_secret=' . $appsecret . '&redirect_uri='
  81                         . urlencode($a->get_baseurl() . '/facebook/' . $nick)
  82                         . '&code=' . $auth_code);
  83
  84                 logger('facebook_init: returned access token: ' . $x, LOGGER_DATA);
  85
  86                 if(strpos($x,'access_token=') !== false) {
  87                         $token = str_replace('access_token=', '', $x);
  88                         if(strpos($token,'&') !== false)
  89                                 $token = substr($token,0,strpos($token,'&'));
  90                         set_pconfig($uid,'facebook','access_token',$token);
  91                         set_pconfig($uid,'facebook','post','1');
  92                         fb_get_self($uid);
  93                         fb_get_friends($uid);
  94                         fb_consume_all($uid);
  95
  96                 }
  97
  98                 // todo: is this a browser session or a server session? where do we go?
  99         }
 100
 101 }
 102
 103
 104 function fb_get_self($uid) {
 105         $access_token = get_pconfig($uid,'facebook','access_token');
 106         if(! $access_token)
 107                 return;
 108         $s = fetch_url('https://graph.facebook.com/me/?access_token=' . $access_token);
 109         if($s) {
 110                 $j = json_decode($s);
 111                 set_pconfig($uid,'facebook','self_id',(string) $j->id);
 112         }
 113 }
 114
 115
 116
 117 function fb_get_friends($uid) {
 118
 119         $access_token = get_pconfig($uid,'facebook','access_token');
 120
 121         $no_linking = get_pconfig($uid,'facebook','no_linking');
 122         if($no_linking)
 123                 return;
 124
 125         if(! $access_token)
 126                 return;
 127         $s = fetch_url('https://graph.facebook.com/me/friends?access_token=' . $access_token);
 128         if($s) {
 129                 logger('facebook: fb_get_friends: ' . $s, LOGGER_DATA);
 130                 $j = json_decode($s);
 131                 logger('facebook: fb_get_friends: json: ' . print_r($j,true), LOGGER_DATA);
 132                 foreach($j->data as $person) {
 133                         $s = fetch_url('https://graph.facebook.com/' . $person->id . '?access_token=' . $access_token);
 134                         if($s) {
 135                                 $jp = json_decode($s);
 136                                 logger('fb_get_friends: info: ' . print_r($jp,true), LOGGER_DATA);
 137
 138                                 // always use numeric link for consistency
 139
 140                                 $jp->link = 'http://facebook.com/profile.php?id=' . $person->id;
 141
 142                                 // check if we already have a contact
 143
 144                                 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `url` = '%s' LIMIT 1",
 145                                         intval($uid),
 146                                         dbesc($jp->link)
 147                                 );
 148
 149                                 if(count($r)) {
 150
 151                                         // check that we have all the photos, this has been known to fail on occasion
 152
 153                                         if((! $r[0]['photo']) || (! $r[0]['thumb']) || (! $r[0]['micro'])) {
 154                                                 require_once("Photo.php");
 155
 156                                                 $photos = import_profile_photo('https://graph.facebook.com/' . $jp->id . '/picture', $uid, $r[0]['id']);
 157
 158                                                 $r = q("UPDATE `contact` SET `photo` = '%s',
 159                                                         `thumb` = '%s',
 160                                                         `micro` = '%s',
 161                                                         `name-date` = '%s',
 162                                                         `uri-date` = '%s',
 163                                                         `avatar-date` = '%s'
 164                                                         WHERE `id` = %d LIMIT 1
 165                                                 ",
 166                                                         dbesc($photos[0]),
 167                                                         dbesc($photos[1]),
 168                                                         dbesc($photos[2]),
 169                                                         dbesc(datetime_convert()),
 170                                                         dbesc(datetime_convert()),
 171                                                         dbesc(datetime_convert()),
 172                                                         intval($r[0]['id'])
 173                                                 );
 174                                         }
 175                                         continue;
 176                                 }
 177                                 else {
 178
 179                                         // create contact record
 180                                         $r = q("INSERT INTO `contact` ( `uid`, `created`, `url`, `addr`, `alias`, `notify`, `poll`,
 181                                                 `name`, `nick`, `photo`, `network`, `rel`, `priority`,
 182                                                 `writable`, `blocked`, `readonly`, `pending` )
 183                                                 VALUES ( %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', %d, %d, %d, 0, 0, 0 ) ",
 184                                                 intval($uid),
 185                                                 dbesc(datetime_convert()),
 186                                                 dbesc($jp->link),
 187                                                 dbesc(''),
 188                                                 dbesc(''),
 189                                                 dbesc($jp->id),
 190                                                 dbesc('facebook ' . $jp->id),
 191                                                 dbesc($jp->name),
 192                                                 dbesc(($jp->nickname) ? $jp->nickname : strtolower($jp->first_name)),
 193                                                 dbesc('https://graph.facebook.com/' . $jp->id . '/picture'),
 194                                                 dbesc(NETWORK_FACEBOOK),
 195                                                 intval(REL_BUD),
 196                                                 intval(1),
 197                                                 intval(1)
 198                                         );
 199                                 }
 200
 201                                 $r = q("SELECT * FROM `contact` WHERE `url` = '%s' AND `uid` = %d LIMIT 1",
 202                                         dbesc($jp->link),
 203                                         intval($uid)
 204                                 );
 205
 206                                 if(! count($r)) {
 207                                         continue;
 208                                 }
 209
 210                                 $contact = $r[0];
 211                                 $contact_id  = $r[0]['id'];
 212
 213                                 require_once("Photo.php");
 214
 215                                 $photos = import_profile_photo($r[0]['photo'],$uid,$contact_id);
 216
 217                                 $r = q("UPDATE `contact` SET `photo` = '%s',
 218                                         `thumb` = '%s',
 219                                         `micro` = '%s',
 220                                         `name-date` = '%s',
 221                                         `uri-date` = '%s',
 222                                         `avatar-date` = '%s'
 223                                         WHERE `id` = %d LIMIT 1
 224                                 ",
 225                                         dbesc($photos[0]),
 226                                         dbesc($photos[1]),
 227                                         dbesc($photos[2]),
 228                                         dbesc(datetime_convert()),
 229                                         dbesc(datetime_convert()),
 230                                         dbesc(datetime_convert()),
 231                                         intval($contact_id)
 232                                 );
 233
 234                         }
 235                 }
 236         }
 237 }
 238
 239
 240 function facebook_post(&$a) {
 241
 242         $uid = local_user();
 243         if($uid){
 244
 245                 $value = ((x($_POST,'post_by_default')) ? intval($_POST['post_by_default']) : 0);
 246                 set_pconfig($uid,'facebook','post_by_default', $value);
 247
 248                 $no_linking = get_pconfig($uid,'facebook','no_linking');
 249
 250                 $linkvalue = ((x($_POST,'facebook_linking')) ? intval($_POST['facebook_linking']) : 0);
 251                 set_pconfig($uid,'facebook','no_linking', (($linkvalue) ? 0 : 1));
 252
 253                 // FB linkage was allowed but has just been turned off - remove all FB contacts and posts
 254
 255                 if((! intval($no_linking)) && (! intval($linkvalue))) {
 256                         $r = q("SELECT `id` FROM `contact` WHERE `uid` = %d AND `network` = '%s' ",
 257                                 intval($uid),
 258                                 dbesc(NETWORK_FACEBOOK)
 259                         );
 260                         if(count($r)) {
 261                                 require_once('include/Contact.php');
 262                                 foreach($r as $rr)
 263                                         contact_remove($rr['id']);
 264                         }
 265                 }
 266                 elseif(intval($no_linking) && intval($linkvalue)) {
 267                         // FB linkage is now allowed - import stuff.
 268                         fb_get_self($uid);
 269                         fb_get_friends($uid);
 270                         fb_consume_all($uid);
 271                 }
 272
 273                 info( t('Settings updated.') . EOL);
 274         }
 275
 276         return;
 277 }
 278
 279 function facebook_content(&$a) {
 280
 281         if(! local_user()) {
 282                 notice( t('Permission denied.') . EOL);
 283                 return '';
 284         }
 285
 286         if($a->argc > 1 && $a->argv[1] === 'remove') {
 287                 del_pconfig(local_user(),'facebook','post');
 288                 info( t('Facebook disabled') . EOL);
 289         }
 290
 291         if($a->argc > 1 && $a->argv[1] === 'friends') {
 292                 fb_get_friends(local_user());
 293                 info( t('Updating contacts') . EOL);
 294         }
 295
 296
 297         $fb_installed = get_pconfig(local_user(),'facebook','post');
 298
 299         $appid = get_config('facebook','appid');
 300
 301         if(! $appid) {
 302                 notice( t('Facebook API key is missing.') . EOL);
 303                 return '';
 304         }
 305
 306         $a->page['htmlhead'] .= '<link rel="stylesheet" type="text/css" href="'
 307                 . $a->get_baseurl() . '/addon/facebook/facebook.css' . '" media="all" />' . "\r\n";
 308
 309         $o .= '<h3>' . t('Facebook Connect') . '</h3>';
 310
 311         if(! $fb_installed) {
 312                 $o .= '<div id="facebook-enable-wrapper">';
 313
 314                 $o .= '<a href="https://www.facebook.com/dialog/oauth?client_id=' . $appid . '&redirect_uri='
 315                         . $a->get_baseurl() . '/facebook/' . $a->user['nickname'] . '&scope=publish_stream,read_stream,offline_access">' . t('Install Facebook connector for this account.') . '</a>';
 316                 $o .= '</div>';
 317         }
 318
 319         if($fb_installed) {
 320                 $o .= '<div id="facebook-disable-wrapper">';
 321
 322                 $o .= '<a href="' . $a->get_baseurl() . '/facebook/remove' . '">' . t('Remove Facebook connector') . '</a></div>';
 323
 324                 $o .= '<div id="facebook-post-default-form">';
 325                 $o .= '<form action="facebook" method="post" >';
 326                 $post_by_default = get_pconfig(local_user(),'facebook','post_by_default');
 327                 $checked = (($post_by_default) ? ' checked="checked" ' : '');
 328                 $o .= '<input type="checkbox" name="post_by_default" value="1"' . $checked . '/>' . ' ' . t('Post to Facebook by default') . '<br />';
 329
 330                 $no_linking = get_pconfig(local_user(),'facebook','no_linking');
 331                 $checked = (($no_linking) ? '' : ' checked="checked" ');
 332                 $o .= '<input type="checkbox" name="facebook_linking" value="1"' . $checked . '/>' . ' ' . t('Link all your Facebook friends and conversations') . '<br />';
 333
 334
 335
 336                 $o .= '<input type="submit" name="submit" value="' . t('Submit') . '" /></form></div>';
 337         }
 338
 339         return $o;
 340 }
 341
 342 function facebook_install() {
 343         register_hook('post_local_end',   'addon/facebook/facebook.php', 'facebook_post_hook');
 344         register_hook('jot_networks',     'addon/facebook/facebook.php', 'facebook_jot_nets');
 345         register_hook('plugin_settings',  'addon/facebook/facebook.php', 'facebook_plugin_settings');
 346         register_hook('cron',             'addon/facebook/facebook.php', 'facebook_cron');
 347         register_hook('queue_predeliver', 'addon/facebook/facebook.php', 'fb_queue_hook');
 348 }
 349
 350
 351 function facebook_uninstall() {
 352         unregister_hook('post_local_end',   'addon/facebook/facebook.php', 'facebook_post_hook');
 353         unregister_hook('jot_networks',     'addon/facebook/facebook.php', 'facebook_jot_nets');
 354         unregister_hook('plugin_settings',  'addon/facebook/facebook.php', 'facebook_plugin_settings');
 355         unregister_hook('cron',             'addon/facebook/facebook.php', 'facebook_cron');
 356         unregister_hook('queue_predeliver', 'addon/facebook/facebook.php', 'fb_queue_hook');
 357 }
 358
 359
 360 function facebook_cron($a,$b) {
 361
 362         $last = get_config('facebook','last_poll');
 363
 364         $poll_interval = intval(get_config('facebook','poll_interval'));
 365         if(! $poll_interval)
 366                 $poll_interval = 3600;
 367
 368         if($last) {
 369                 $next = $last + $poll_interval;
 370                 if($next > time())
 371                         return;
 372         }
 373
 374         logger('facebook_cron');
 375
 376         set_config('facebook','last_poll', time());
 377
 378         $r = q("SELECT * FROM `pconfig` WHERE `cat` = 'facebook' AND `k` = 'post' AND `v` = '1' ");
 379         if(count($r)) {
 380                 foreach($r as $rr) {
 381                         // check for new friends once a day
 382                         $last_friend_check = get_pconfig($rr['uid'],'facebook','friend_check');
 383                         if($last_friend_check)
 384                                 $next_friend_check = $last_friend_check + 86400;
 385                         if($next_friend_check <= time()) {
 386                                 fb_get_friends($rr['uid']);
 387                                 set_pconfig($rr['uid'],'facebook','friend_check',time());
 388                         }
 389                         fb_consume_all($rr['uid']);
 390                 }
 391         }
 392 }
 393
 394
 395
 396 function facebook_plugin_settings(&$a,&$b) {
 397
 398         $b .= '<div class="settings-block">';
 399         $b .= '<h3>' . t('Facebook') . '</h3>';
 400         $b .= '<a href="facebook">' . t('Facebook Connector Settings') . '</a><br />';
 401         $b .= '</div>';
 402
 403 }
 404
 405 function facebook_jot_nets(&$a,&$b) {
 406         if(! local_user())
 407                 return;
 408
 409         $fb_post = get_pconfig(local_user(),'facebook','post');
 410         if(intval($fb_post) == 1) {
 411                 $fb_defpost = get_pconfig(local_user(),'facebook','post_by_default');
 412                 $selected = ((intval($fb_defpost) == 1) ? ' checked="checked" ' : '');
 413                 $b .= '<div class="profile-jot-net"><input type="checkbox" name="facebook_enable"' . $selected . 'value="1" /> '
 414                         . t('Post to Facebook') . '</div>';
 415         }
 416 }
 417
 418
 419 function facebook_post_hook(&$a,&$b) {
 420
 421         /**
 422          * Post to Facebook stream
 423          */
 424
 425         require_once('include/group.php');
 426
 427         logger('Facebook post');
 428
 429         $reply = false;
 430         $likes = false;
 431
 432         if((local_user()) && (local_user() == $b['uid'])) {
 433
 434                 if($b['parent']) {
 435                         $r = q("SELECT * FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1",
 436                                 intval($b['parent']),
 437                                 intval(local_user())
 438                         );
 439                         if(count($r) && substr($r[0]['uri'],0,4) === 'fb::')
 440                                 $reply = substr($r[0]['uri'],4);
 441                         elseif(count($r) && substr($r[0]['extid'],0,4) === 'fb::')
 442                                 $reply = substr($r[0]['extid'],4);
 443                         else
 444                                 return;
 445                         logger('facebook reply id=' . $reply);
 446                 }
 447
 448                 if($b['private'] && $reply === false) {
 449                         $allow_people = expand_acl($b['allow_cid']);
 450                         $allow_groups = expand_groups(expand_acl($b['allow_gid']));
 451                         $deny_people  = expand_acl($b['deny_cid']);
 452                         $deny_groups  = expand_groups(expand_acl($b['deny_gid']));
 453
 454                         $recipients = array_unique(array_merge($allow_people,$allow_groups));
 455                         $deny = array_unique(array_merge($deny_people,$deny_groups));
 456
 457                         $allow_str = dbesc(implode(', ',$recipients));
 458                         if($allow_str) {
 459                                 $r = q("SELECT `notify` FROM `contact` WHERE `id` IN ( $allow_str ) AND `network` = 'face'");
 460                                 $allow_arr = array();
 461                                 if(count($r))
 462                                         foreach($r as $rr)
 463                                                 $allow_arr[] = $rr['notify'];
 464                         }
 465
 466                         $deny_str = dbesc(implode(', ',$deny));
 467                         if($deny_str) {
 468                                 $r = q("SELECT `notify` FROM `contact` WHERE `id` IN ( $deny_str ) AND `network` = 'face'");
 469                                 $deny_arr = array();
 470                                 if(count($r))
 471                                         foreach($r as $rr)
 472                                                 $deny_arr[] = $rr['notify'];
 473                         }
 474
 475                         if(count($deny_arr) && (! count($allow_arr))) {
 476
 477                                 // One or more FB folks were denied access but nobody on FB was specifically allowed access.
 478                                 // This might cause the post to be open to public on Facebook, but only to selected members
 479                                 // on another network. Since this could potentially leak a post to somebody who was denied,
 480                                 // we will skip posting it to Facebook with a slightly vague but relevant message that will
 481                                 // hopefully lead somebody to this code comment for a better explanation of what went wrong.
 482
 483                                 notice( t('Post to Facebook cancelled because of multi-network access permission conflict.') . EOL);
 484                                 return;
 485                         }
 486
 487
 488                         // if it's a private message but no Facebook members are allowed or denied, skip Facebook post
 489
 490                         if((! count($allow_arr)) && (! count($deny_arr)))
 491                                 return;
 492                 }
 493
 494                 if($b['verb'] == ACTIVITY_LIKE)
 495                         $likes = true;
 496
 497
 498                 $appid  = get_config('facebook', 'appid'  );
 499                 $secret = get_config('facebook', 'appsecret' );
 500
 501                 if($appid && $secret) {
 502
 503                         logger('facebook: have appid+secret');
 504
 505                         $fb_post   = intval(get_pconfig(local_user(),'facebook','post'));
 506                         $fb_enable = (($fb_post && x($_POST,'facebook_enable')) ? intval($_POST['facebook_enable']) : 0);
 507                         $fb_token  = get_pconfig(local_user(),'facebook','access_token');
 508
 509                         logger('facebook: $fb_post: ' . $fb_post . ' $fb_enable: ' . $fb_enable . ' $fb_token: ' . $fb_token,LOGGER_DEBUG);
 510
 511                         // post to facebook if it's a public post and we've ticked the 'post to Facebook' box,
 512                         // or it's a private message with facebook participants
 513                         // or it's a reply or likes action to an existing facebook post
 514
 515                         if($fb_post && $fb_token && ($fb_enable || $b['private'] || $reply)) {
 516                                 logger('facebook: able to post');
 517                                 require_once('library/facebook.php');
 518                                 require_once('include/bbcode.php');
 519
 520                                 $msg = $b['body'];
 521
 522                                 logger('Facebook post: original msg=' . $msg, LOGGER_DATA);
 523
 524                                 // make links readable before we strip the code
 525
 526                                 // unless it's a dislike - just send the text as a comment
 527
 528                                 if($b['verb'] == ACTIVITY_DISLIKE)
 529                                         $msg = trim(strip_tags(bbcode($msg)));
 530
 531                                 $search_str = $a->get_baseurl() . '/search';
 532
 533                                 if(preg_match("/\[url=(.*?)\](.*?)\[\/url\]/is",$msg,$matches)) {
 534
 535                                         // don't use hashtags for message link
 536
 537                                         if(strpos($matches[2],$search_str) === false) {
 538                                                 $link = $matches[1];
 539                                                 if(substr($matches[2],0,5) != '[img]')
 540                                                         $linkname = $matches[2];
 541                                         }
 542                                 }
 543
 544                                 $msg = preg_replace("/\[url=(.*?)\](.*?)\[\/url\]/is",'$2 $1',$msg);
 545
 546                                 if(preg_match("/\[img\](.*?)\[\/img\]/is",$msg,$matches))
 547                                         $image = $matches[1];
 548
 549                                 $msg = preg_replace("/\[img\](.*?)\[\/img\]/is", t('Image: ') . '$1', $msg);
 550
 551                                 if((strpos($link,$a->get_baseurl()) !== false) && (! $image))
 552                                         $image = $a->get_baseurl() . '/images/friendika-64.jpg';
 553
 554                                 $msg = trim(strip_tags(bbcode($msg)));
 555                                 $msg = html_entity_decode($msg,ENT_QUOTES,'UTF-8');
 556
 557                                 // add any attachments as text urls
 558
 559                             $arr = explode(',',$b['attach']);
 560
 561                             if(count($arr)) {
 562                                         $msg .= "\n";
 563                                 foreach($arr as $r) {
 564                                 $matches = false;
 565                                                 $cnt = preg_match('|\[attach\]href=\"(.*?)\" size=\"(.*?)\" type=\"(.*?)\" title=\"(.*?)\"\[\/attach\]|',$r,$matches);
 566                                                 if($cnt) {
 567                                                         $msg .= $matches[1];
 568                                                 }
 569                                         }
 570                                 }
 571
 572                                 if (strlen($msg) > FACEBOOK_MAXPOSTLEN) {
 573                                         $shortlink = "";
 574                                         require_once('library/slinky.php');
 575
 576                                         $display_url = $a->get_baseurl() . '/display/' . $a->user['nickname'] . '/' . $b['id'];
 577                                         $slinky = new Slinky( $display_url );
 578                                         // setup a cascade of shortening services
 579                                         // try to get a short link from these services
 580                                         // in the order ur1.ca, trim, id.gd, tinyurl
 581                                         $slinky->set_cascade( array( new Slinky_UR1ca(), new Slinky_Trim(), new Slinky_IsGd(), new Slinky_TinyURL() ) );
 582                                         $shortlink = $slinky->short();
 583                                         // the new message will be shortened such that "... $shortlink"
 584                                         // will fit into the character limit
 585                                         $msg = substr($msg, 0, FACEBOOK_MAXPOSTLEN - strlen($shortlink) - 4);
 586                                         $msg .= '... ' . $shortlink;
 587                                 }
 588                                 if(! strlen($msg))
 589                                         return;
 590
 591                                 logger('Facebook post: msg=' . $msg, LOGGER_DATA);
 592
 593                                 if($likes) {
 594                                         $postvars = array('access_token' => $fb_token);
 595                                 }
 596                                 else {
 597                                         $postvars = array(
 598                                                 'access_token' => $fb_token,
 599                                                 'message' => $msg
 600                                         );
 601                                         if(isset($image))
 602                                                 $postvars['picture'] = $image;
 603                                         if(isset($link))
 604                                                 $postvars['link'] = $link;
 605                                         if(isset($linkname))
 606                                                 $postvars['name'] = $linkname;
 607                                 }
 608
 609                                 if(($b['private']) && (! $b['parent'])) {
 610                                         $postvars['privacy'] = '{"value": "CUSTOM", "friends": "SOME_FRIENDS"';
 611                                         if(count($allow_arr))
 612                                                 $postvars['privacy'] .= ',"allow": "' . implode(',',$allow_arr) . '"';
 613                                         if(count($deny_arr))
 614                                                 $postvars['privacy'] .= ',"deny": "' . implode(',',$deny_arr) . '"';
 615                                         $postvars['privacy'] .= '}';
 616
 617                                 }
 618
 619                                 if($reply) {
 620                                         $url = 'https://graph.facebook.com/' . $reply . '/' . (($likes) ? 'likes' : 'comments');
 621                                 }
 622                                 else {
 623                                         $url = 'https://graph.facebook.com/me/feed';
 624                                         if($b['plink'])
 625                                                 $postvars['actions'] = '{"name": "' . t('View on Friendika') . '", "link": "' .  $b['plink'] . '"}';
 626                                 }
 627
 628                                 logger('facebook: post to ' . $url);
 629                                 logger('facebook: postvars: ' . print_r($postvars,true));
 630
 631                                 // "test_mode" prevents anything from actually being posted.
 632                                 // Otherwise, let's do it.
 633
 634                                 if(! get_config('facebook','test_mode')) {
 635                                         $x = post_url($url, $postvars);
 636
 637                                         $retj = json_decode($x);
 638                                         if($retj->id) {
 639                                                 q("UPDATE `item` SET `extid` = '%s' WHERE `id` = %d LIMIT 1",
 640                                                         dbesc('fb::' . $retj->id),
 641                                                         intval($b['id'])
 642                                                 );
 643                                         }
 644                                         else {
 645                                                 if(! $likes) {
 646                                                         $s = serialize(array('url' => $url, 'item' => $b['id'], 'post' => $postvars));
 647                                                         q("INSERT INTO `queue` ( `network`, `cid`, `created`, `last`, `content`)
 648                                                                 VALUES ( '%s', %d, '%s', '%s', '%s') ",
 649                                                                 dbesc(NETWORK_FACEBOOK),
 650                                                                 intval($a->contact),
 651                                                                 dbesc(datetime_convert()),
 652                                                                 dbesc(datetime_convert()),
 653                                                                 dbesc($s)
 654                                                         );
 655
 656                                                         notice( t('Facebook post failed. Queued for retry.') . EOL);
 657                                                 }
 658                                         }
 659
 660                                         logger('Facebook post returns: ' . $x, LOGGER_DEBUG);
 661                                 }
 662                         }
 663                 }
 664         }
 665 }
 666
 667
 668 function fb_queue_hook(&$a,&$b) {
 669
 670         $qi = q("SELECT * FROM `queue` WHERE `network` = '%s'",
 671                 dbesc(NETWORK_FACEBOOK)
 672         );
 673         if(! count($qi))
 674                 return;
 675
 676         require_once('include/queue_fn.php');
 677
 678         foreach($qi as $x) {
 679                 if($x['network'] !== NETWORK_FACEBOOK)
 680                         continue;
 681
 682                 logger('facebook_queue: run');
 683
 684                 $r = q("SELECT `user`.* FROM `user` LEFT JOIN `contact` on `contact`.`uid` = `user`.`uid`
 685                         WHERE `contact`.`self` = 1 AND `contact`.`id` = %d LIMIT 1",
 686                         intval($x['cid'])
 687                 );
 688                 if(! count($r))
 689                         continue;
 690
 691                 $user = $r[0];
 692
 693                 $appid  = get_config('facebook', 'appid'  );
 694                 $secret = get_config('facebook', 'appsecret' );
 695
 696                 if($appid && $secret) {
 697                         $fb_post   = intval(get_pconfig($user['uid'],'facebook','post'));
 698                         $fb_token  = get_pconfig($user['uid'],'facebook','access_token');
 699
 700                         if($fb_post && $fb_token) {
 701                                 logger('facebook_queue: able to post');
 702                                 require_once('library/facebook.php');
 703
 704                                 $z = unserialize($x['content']);
 705                                 $item = $z['item'];
 706                                 $j = post_url($z['url'],$z['post']);
 707
 708                                 $retj = json_decode($j);
 709                                 if($retj->id) {
 710                                         q("UPDATE `item` SET `extid` = '%s' WHERE `id` = %d LIMIT 1",
 711                                                 dbesc('fb::' . $retj->id),
 712                                                 intval($item)
 713                                         );
 714                                         logger('facebook_queue: success: ' . $j);
 715                                         remove_queue_item($x['id']);
 716                                 }
 717                                 else {
 718                                         logger('facebook_queue: failed: ' . $j);
 719                                         update_queue_time($x['id']);
 720                                 }
 721                         }
 722                 }
 723         }
 724 }
 725
 726 function fb_consume_all($uid) {
 727
 728         require_once('include/items.php');
 729
 730         $access_token = get_pconfig($uid,'facebook','access_token');
 731         if(! $access_token)
 732                 return;
 733         $s = fetch_url('https://graph.facebook.com/me/feed?access_token=' . $access_token);
 734         if($s) {
 735                 $j = json_decode($s);
 736                 logger('fb_consume_stream: wall: ' . print_r($j,true), LOGGER_DATA);
 737                 fb_consume_stream($uid,$j,true);
 738         }
 739         $s = fetch_url('https://graph.facebook.com/me/home?access_token=' . $access_token);
 740         if($s) {
 741                 $j = json_decode($s);
 742                 logger('fb_consume_stream: feed: ' . print_r($j,true), LOGGER_DATA);
 743                 fb_consume_stream($uid,$j,false);
 744         }
 745
 746 }
 747
 748 function fb_consume_stream($uid,$j,$wall = false) {
 749         $a = get_app();
 750
 751         $no_linking = get_pconfig($uid,'facebook','no_linking');
 752         if($no_linking)
 753                 return;
 754
 755         $self = q("SELECT * FROM `contact` WHERE `self` = 1 AND `uid` = %d LIMIT 1",
 756                 intval($uid)
 757         );
 758
 759         $user = q("SELECT `nickname` FROM `user` WHERE `uid` = %d LIMIT 1",
 760                 intval($uid)
 761         );
 762         if(count($user))
 763                 $my_local_url = $a->get_baseurl() . '/profile/' . $user[0]['nickname'];
 764
 765
 766         $self_id = get_pconfig($uid,'facebook','self_id');
 767         if(! count($j->data) || (! strlen($self_id)))
 768                 return;
 769
 770         foreach($j->data as $entry) {
 771                 logger('fb_consume: entry: ' . print_r($entry,true), LOGGER_DATA);
 772                 $datarray = array();
 773
 774                 $r = q("SELECT * FROM `item` WHERE ( `uri` = '%s' OR `extid` = '%s') AND `uid` = %d LIMIT 1",
 775                                 dbesc('fb::' . $entry->id),
 776                                 dbesc('fb::' . $entry->id),
 777                                 intval($uid)
 778                 );
 779                 if(count($r)) {
 780                         $post_exists = true;
 781                         $orig_post = $r[0];
 782                         $top_item = $r[0]['id'];
 783                 }
 784                 else {
 785                         $post_exists = false;
 786                         $orig_post = null;
 787                 }
 788
 789                 if(! $orig_post) {
 790                         $datarray['gravity'] = 0;
 791                         $datarray['uid'] = $uid;
 792                         $datarray['wall'] = (($wall) ? 1 : 0);
 793                         $datarray['uri'] = $datarray['parent-uri'] = 'fb::' . $entry->id;
 794                         $from = $entry->from;
 795                         if($from->id == $self_id)
 796                                 $datarray['contact-id'] = $self[0]['id'];
 797                         else {
 798                                 $r = q("SELECT * FROM `contact` WHERE `notify` = '%s' AND `uid` = %d AND `blocked` = 0 AND `readonly` = 0 LIMIT 1",
 799                                         dbesc($from->id),
 800                                         intval($uid)
 801                                 );
 802                                 if(count($r))
 803                                         $datarray['contact-id'] = $r[0]['id'];
 804                         }
 805
 806                         // don't store post if we don't have a contact
 807
 808                         if(! x($datarray,'contact-id')) {
 809                                 logger('no contact: post ignored');
 810                                 continue;
 811                         }
 812
 813                         $datarray['verb'] = ACTIVITY_POST;
 814                         if($wall) {
 815                                 $datarray['owner-name'] = $self[0]['name'];
 816                                 $datarray['owner-link'] = $self[0]['url'];
 817                                 $datarray['owner-avatar'] = $self[0]['thumb'];
 818                         }
 819                         $datarray['author-name'] = $from->name;
 820                         $datarray['author-link'] = 'http://facebook.com/profile.php?id=' . $from->id;
 821                         $datarray['author-avatar'] = 'https://graph.facebook.com/' . $from->id . '/picture';
 822                         $datarray['plink'] = $datarray['author-link'] . '&v=wall&story_fbid=' . substr($entry->id,strpos($entry->id,'_') + 1);
 823
 824                         $datarray['body'] = $entry->message;
 825                         if($entry->picture)
 826                                 $datarray['body'] .= "\n\n" . '[img]' . $entry->picture . '[/img]';
 827                         if($entry->link)
 828                                 $datarray['body'] .= "\n" . linkify($entry->link);
 829                         if($entry->name)
 830                                 $datarray['body'] .= "\n" . $entry->name;
 831                         if($entry->caption)
 832                                 $datarray['body'] .= "\n" . $entry->caption;
 833                         if($entry->description)
 834                                 $datarray['body'] .= "\n" . $entry->description;
 835                         $datarray['created'] = datetime_convert('UTC','UTC',$entry->created_time);
 836                         $datarray['edited'] = datetime_convert('UTC','UTC',$entry->updated_time);
 837                         if($entry->privacy && $entry->privacy->value !== 'EVERYONE')
 838                                 $datarray['private'] = 1;
 839                         $top_item = item_store($datarray);
 840                         $r = q("SELECT * FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1",
 841                                 intval($top_item),
 842                                 intval($uid)
 843                         );
 844                         if(count($r)) {
 845                                 $orig_post = $r[0];
 846                                 logger('fb: new top level item posted');
 847                         }
 848                 }
 849
 850                 if(isset($entry->likes) && isset($entry->likes->data))
 851                         $likers = $entry->likes->data;
 852                 else
 853                         $likers = null;
 854
 855                 if(isset($entry->comments) && isset($entry->comments->data))
 856                         $comments = $entry->comments->data;
 857                 else
 858                         $comments = null;
 859
 860                 if(is_array($likers)) {
 861                         foreach($likers as $likes) {
 862
 863                                 if(! $orig_post)
 864                                         continue;
 865
 866                                 // If we posted the like locally, it will be found with our url, not the FB url.
 867
 868                                 $second_url = (($likes->id == $self_id) ? $self[0]['url'] : 'http://facebook.com/profile.php?id=' . $likes->id);
 869
 870                                 $r = q("SELECT * FROM `item` WHERE `parent-uri` = '%s' AND `uid` = %d AND `verb` = '%s'
 871                                         AND ( `author-link` = '%s' OR `author-link` = '%s' ) LIMIT 1",
 872                                         dbesc($orig_post['uri']),
 873                                         intval($uid),
 874                                         dbesc(ACTIVITY_LIKE),
 875                                         dbesc('http://facebook.com/profile.php?id=' . $likes->id),
 876                                         dbesc($second_url)
 877                                 );
 878
 879                                 if(count($r))
 880                                         continue;
 881
 882                                 $likedata = array();
 883                                 $likedata['parent'] = $top_item;
 884                                 $likedata['verb'] = ACTIVITY_LIKE;
 885                                 $likedata['gravity'] = 3;
 886                                 $likedata['uid'] = $uid;
 887                                 $likedata['wall'] = (($wall) ? 1 : 0);
 888                                 $likedata['uri'] = item_new_uri($a->get_baseurl(), $uid);
 889                                 $likedata['parent-uri'] = $orig_post['uri'];
 890                                 if($likes->id == $self_id)
 891                                         $likedata['contact-id'] = $self[0]['id'];
 892                                 else {
 893                                         $r = q("SELECT * FROM `contact` WHERE `notify` = '%s' AND `uid` = %d AND `blocked` = 0 AND `readonly` = 0 LIMIT 1",
 894                                                 dbesc($likes->id),
 895                                                 intval($uid)
 896                                         );
 897                                         if(count($r))
 898                                                 $likedata['contact-id'] = $r[0]['id'];
 899                                 }
 900                                 if(! x($likedata,'contact-id'))
 901                                         $likedata['contact-id'] = $orig_post['contact-id'];
 902
 903                                 $likedata['verb'] = ACTIVITY_LIKE;
 904                                 $likedata['author-name'] = $likes->name;
 905                                 $likedata['author-link'] = 'http://facebook.com/profile.php?id=' . $likes->id;
 906                                 $likedata['author-avatar'] = 'https://graph.facebook.com/' . $likes->id . '/picture';
 907
 908                                 $author  = '[url=' . $likedata['author-link'] . ']' . $likedata['author-name'] . '[/url]';
 909                                 $objauthor =  '[url=' . $orig_post['author-link'] . ']' . $orig_post['author-name'] . '[/url]';
 910                                 $post_type = t('status');
 911                         $plink = '[url=' . $orig_post['plink'] . ']' . $post_type . '[/url]';
 912                                 $likedata['object-type'] = ACTIVITY_OBJ_NOTE;
 913
 914                                 $likedata['body'] = sprintf( t('%1$s likes %2$s\'s %3$s'), $author, $objauthor, $plink);
 915                                 $likedata['object'] = '<object><type>' . ACTIVITY_OBJ_NOTE . '</type><local>1</local>' .
 916                                         '<id>' . $orig_post['uri'] . '</id><link>' . xmlify('<link rel="alternate" type="text/html" href="' . xmlify($orig_post['plink']) . '" />') . '</link><title>' . $orig_post['title'] . '</title><content>' . $orig_post['body'] . '</content></object>';
 917
 918                                 $item = item_store($likedata);
 919                         }
 920                 }
 921                 if(is_array($comments)) {
 922                         foreach($comments as $cmnt) {
 923
 924                                 if(! $orig_post)
 925                                         continue;
 926
 927                                 $r = q("SELECT * FROM `item` WHERE `uid` = %d AND ( `uri` = '%s' OR `extid` = '%s' ) LIMIT 1",
 928                                         intval($uid),
 929                                         dbesc('fb::' . $cmnt->id),
 930                                         dbesc('fb::' . $cmnt->id)
 931                                 );
 932                                 if(count($r))
 933                                         continue;
 934
 935                                 $cmntdata = array();
 936                                 $cmntdata['parent'] = $top_item;
 937                                 $cmntdata['verb'] = ACTIVITY_POST;
 938                                 $cmntdata['gravity'] = 6;
 939                                 $cmntdata['uid'] = $uid;
 940                                 $cmntdata['wall'] = (($wall) ? 1 : 0);
 941                                 $cmntdata['uri'] = 'fb::' . $cmnt->id;
 942                                 $cmntdata['parent-uri'] = $orig_post['uri'];
 943                                 if($cmnt->from->id == $self_id) {
 944                                         $cmntdata['contact-id'] = $self[0]['id'];
 945                                 }
 946                                 else {
 947                                         $r = q("SELECT * FROM `contact` WHERE `notify` = '%s' AND `uid` = %d LIMIT 1",
 948                                                 dbesc($cmnt->from->id),
 949                                                 intval($uid)
 950                                         );
 951                                         if(count($r)) {
 952                                                 $cmntdata['contact-id'] = $r[0]['id'];
 953                                                 if($r[0]['blocked'] || $r[0]['readonly'])
 954                                                         continue;
 955                                         }
 956                                 }
 957                                 if(! x($cmntdata,'contact-id'))
 958                                         $cmntdata['contact-id'] = $orig_post['contact-id'];
 959
 960                                 $cmntdata['created'] = datetime_convert('UTC','UTC',$cmnt->created_time);
 961                                 $cmntdata['edited']  = datetime_convert('UTC','UTC',$cmnt->created_time);
 962                                 $cmntdata['verb'] = ACTIVITY_POST;
 963                                 $cmntdata['author-name'] = $cmnt->from->name;
 964                                 $cmntdata['author-link'] = 'http://facebook.com/profile.php?id=' . $cmnt->from->id;
 965                                 $cmntdata['author-avatar'] = 'https://graph.facebook.com/' . $cmnt->from->id . '/picture';
 966                                 $cmntdata['body'] = $cmnt->message;
 967                                 $item = item_store($cmntdata);
 968                         }
 969                 }
 970         }
 971 }
 972