fbpost/fbpost.php

   1 <?php
   2 /**
   3  * Name: Facebook Post Connector
   4  * Version: 1.3
   5  * Author: Mike Macgirvin <http://macgirvin.com/profile/mike>
   6  * Author: Tobias Hößl <https://github.com/CatoTH/>
   7  *
   8  */
   9
  10 /**
  11  * Installing the Friendica/Facebook connector
  12  *
  13  * Detailed instructions how to use this plugin can be found at
  14  * https://github.com/friendica/friendica/wiki/How-to:-Friendica%E2%80%99s-Facebook-connector
  15  *
  16  * Vidoes and embeds will not be posted if there is no other content. Links
  17  * and images will be converted to a format suitable for the Facebook API and
  18  * long posts truncated - with a link to view the full post.
  19  *
  20  * Facebook contacts will not be able to view private photos, as they are not able to
  21  * authenticate to your site to establish identity. We will address this
  22  * in a future release.
  23  */
  24
  25 define('FACEBOOK_DEFAULT_POLL_INTERVAL', 5); // given in minutes
  26
  27 require_once('include/security.php');
  28
  29 function fbpost_install() {
  30         register_hook('post_local',       'addon/fbpost/fbpost.php', 'fbpost_post_local');
  31         register_hook('notifier_normal',  'addon/fbpost/fbpost.php', 'fbpost_post_hook');
  32         register_hook('jot_networks',     'addon/fbpost/fbpost.php', 'fbpost_jot_nets');
  33         register_hook('connector_settings',  'addon/fbpost/fbpost.php', 'fbpost_plugin_settings');
  34         register_hook('enotify',          'addon/fbpost/fbpost.php', 'fbpost_enotify');
  35         register_hook('queue_predeliver', 'addon/fbpost/fbpost.php', 'fbpost_queue_hook');
  36         register_hook('cron',             'addon/fbpost/fbpost.php', 'fbpost_cron');
  37 }
  38
  39
  40 function fbpost_uninstall() {
  41         unregister_hook('post_local',       'addon/fbpost/fbpost.php', 'fbpost_post_local');
  42         unregister_hook('notifier_normal',  'addon/fbpost/fbpost.php', 'fbpost_post_hook');
  43         unregister_hook('jot_networks',     'addon/fbpost/fbpost.php', 'fbpost_jot_nets');
  44         unregister_hook('connector_settings',  'addon/fbpost/fbpost.php', 'fbpost_plugin_settings');
  45         unregister_hook('enotify',          'addon/fbpost/fbpost.php', 'fbpost_enotify');
  46         unregister_hook('queue_predeliver', 'addon/fbpost/fbpost.php', 'fbpost_queue_hook');
  47         unregister_hook('cron',             'addon/fbpost/fbpost.php', 'fbpost_cron');
  48 }
  49
  50
  51 /* declare the fbpost_module function so that /fbpost url requests will land here */
  52
  53 function fbpost_module() {}
  54
  55
  56
  57 // If a->argv[1] is a nickname, this is a callback from Facebook oauth requests.
  58 // If $_REQUEST["realtime_cb"] is set, this is a callback from the Real-Time Updates API
  59
  60 /**
  61  * @param App $a
  62  */
  63 function fbpost_init(&$a) {
  64
  65         if($a->argc != 2)
  66                 return;
  67
  68         $nick = $a->argv[1];
  69
  70         if(strlen($nick))
  71                 $r = q("SELECT `uid` FROM `user` WHERE `nickname` = '%s' LIMIT 1",
  72                                 dbesc($nick)
  73                 );
  74         if(!(isset($r) && count($r)))
  75                 return;
  76
  77         $uid           = $r[0]['uid'];
  78         $auth_code     = (x($_GET, 'code') ? $_GET['code'] : '');
  79         $error         = (x($_GET, 'error_description') ? $_GET['error_description'] : '');
  80
  81
  82         if($error)
  83                 logger('fbpost_init: Error: ' . $error);
  84
  85         if($auth_code && $uid) {
  86
  87                 $appid = get_config('facebook','appid');
  88                 $appsecret = get_config('facebook', 'appsecret');
  89
  90                 $x = fetch_url('https://graph.facebook.com/oauth/access_token?client_id='
  91                         . $appid . '&client_secret=' . $appsecret . '&redirect_uri='
  92                         . urlencode($a->get_baseurl() . '/fbpost/' . $nick)
  93                         . '&code=' . $auth_code);
  94
  95                 logger('fbpost_init: returned access token: ' . $x, LOGGER_DATA);
  96
  97                 if(strpos($x,'access_token=') !== false) {
  98                         $token = str_replace('access_token=', '', $x);
  99                         if(strpos($token,'&') !== false)
 100                                 $token = substr($token,0,strpos($token,'&'));
 101                         set_pconfig($uid,'facebook','access_token',$token);
 102                         set_pconfig($uid,'facebook','post','1');
 103                         fbpost_get_self($uid);
 104                 }
 105
 106         }
 107
 108 }
 109
 110
 111 /**
 112  * @param int $uid
 113  */
 114 function fbpost_get_self($uid) {
 115         $access_token = get_pconfig($uid,'facebook','access_token');
 116         if(! $access_token)
 117                 return;
 118         $s = fetch_url('https://graph.facebook.com/me/?access_token=' . $access_token);
 119         if($s) {
 120                 $j = json_decode($s);
 121                 set_pconfig($uid,'facebook','self_id',(string) $j->id);
 122         }
 123 }
 124
 125
 126 // This is the POST method to the facebook settings page
 127 // Content is posted to Facebook in the function facebook_post_hook()
 128
 129 /**
 130  * @param App $a
 131  */
 132 function fbpost_post(&$a) {
 133
 134         $uid = local_user();
 135         if($uid){
 136
 137
 138                 $fb_limited = get_config('facebook','crestrict');
 139
 140
 141                 $value = ((x($_POST,'post_by_default')) ? intval($_POST['post_by_default']) : 0);
 142                 set_pconfig($uid,'facebook','post_by_default', $value);
 143
 144                 $value = ((x($_POST,'mirror_posts')) ? intval($_POST['mirror_posts']) : 0);
 145                 set_pconfig($uid,'facebook','mirror_posts', $value);
 146
 147                 $value = ((x($_POST,'suppress_view_on_friendica')) ? intval($_POST['suppress_view_on_friendica']) : 0);
 148                 set_pconfig($uid,'facebook','suppress_view_on_friendica', $value);
 149
 150                 $value = ((x($_POST,'post_to_page')) ? $_POST['post_to_page'] : "0-0");
 151                 $values = explode("-", $value);
 152                 set_pconfig($uid,'facebook','post_to_page', $values[0]);
 153                 set_pconfig($uid,'facebook','page_access_token', $values[1]);
 154
 155                 info( t('Settings updated.') . EOL);
 156         }
 157
 158         return;
 159 }
 160
 161 // Facebook settings form
 162
 163 /**
 164  * @param App $a
 165  * @return string
 166  */
 167 function fbpost_content(&$a) {
 168
 169         if(! local_user()) {
 170                 notice( t('Permission denied.') . EOL);
 171                 return '';
 172         }
 173
 174
 175         if(! service_class_allows(local_user(),'facebook_connect')) {
 176                 notice( t('Permission denied.') . EOL);
 177                 return upgrade_bool_message();
 178         }
 179
 180
 181         if($a->argc > 1 && $a->argv[1] === 'remove') {
 182                 del_pconfig(local_user(),'facebook','post');
 183                 info( t('Facebook Post disabled') . EOL);
 184         }
 185
 186         $o = '';
 187
 188         $fb_installed = false;
 189         if (get_pconfig(local_user(),'facebook','post')) {
 190                 $access_token = get_pconfig(local_user(),'facebook','access_token');
 191                 if ($access_token) {
 192                         $s = fetch_url('https://graph.facebook.com/me/feed?access_token=' . $access_token);
 193                         if($s) {
 194                                 $j = json_decode($s);
 195                                 if (isset($j->data)) $fb_installed = true;
 196                         }
 197                 }
 198         }
 199
 200         $appid = get_config('facebook','appid');
 201
 202         if(! $appid) {
 203                 notice( t('Facebook API key is missing.') . EOL);
 204                 return '';
 205         }
 206
 207         $a->page['htmlhead'] .= '<link rel="stylesheet" type="text/css" href="'
 208                 . $a->get_baseurl() . '/addon/fbpost/fbpost.css' . '" media="all" />' . "\r\n";
 209
 210         $o .= '<h3>' . t('Facebook Post') . '</h3>';
 211
 212         if(! $fb_installed) {
 213                 $o .= '<div id="fbpost-enable-wrapper">';
 214
 215                 $o .= '<a href="https://www.facebook.com/dialog/oauth?client_id=' . $appid . '&redirect_uri='
 216                         . $a->get_baseurl() . '/fbpost/' . $a->user['nickname'] . '&scope=read_stream,publish_stream,manage_pages,photo_upload,user_groups,offline_access">' . t('Install Facebook Post connector for this account.') . '</a>';
 217                 $o .= '</div>';
 218         }
 219
 220         if($fb_installed) {
 221                 $o .= '<div id="fbpost-disable-wrapper">';
 222
 223                 $o .= '<a href="' . $a->get_baseurl() . '/fbpost/remove' . '">' . t('Remove Facebook Post connector') . '</a></div>';
 224
 225                 $o .= '<div id="fbpost-enable-wrapper">';
 226
 227                 $o .= '<a href="https://www.facebook.com/dialog/oauth?client_id=' . $appid . '&redirect_uri='
 228                         . $a->get_baseurl() . '/fbpost/' . $a->user['nickname'] . '&scope=read_stream,publish_stream,manage_pages,photo_upload,user_groups,offline_access">' . t('Re-authenticate [This is necessary whenever your Facebook password is changed.]') . '</a>';
 229                 $o .= '</div>';
 230
 231                 $o .= '<div id="fbpost-post-default-form">';
 232                 $o .= '<form action="fbpost" method="post" >';
 233                 $post_by_default = get_pconfig(local_user(),'facebook','post_by_default');
 234                 $checked = (($post_by_default) ? ' checked="checked" ' : '');
 235                 $o .= '<input type="checkbox" name="post_by_default" value="1"' . $checked . '/>' . ' ' . t('Post to Facebook by default') . EOL;
 236
 237                 $suppress_view_on_friendica = get_pconfig(local_user(),'facebook','suppress_view_on_friendica');
 238                 $checked = (($suppress_view_on_friendica) ? ' checked="checked" ' : '');
 239                 $o .= '<input type="checkbox" name="suppress_view_on_friendica" value="1"' . $checked . '/>' . ' ' . t('Suppress "View on friendica"') . EOL;
 240
 241                 $mirror_posts = get_pconfig(local_user(),'facebook','mirror_posts');
 242                 $checked = (($mirror_posts) ? ' checked="checked" ' : '');
 243                 $o .= '<input type="checkbox" name="mirror_posts" value="1"' . $checked . '/>' . ' ' . t('Mirror wall posts from facebook to friendica.') . EOL;
 244
 245                 // List all pages
 246                 $post_to_page = get_pconfig(local_user(),'facebook','post_to_page');
 247                 $page_access_token = get_pconfig(local_user(),'facebook','page_access_token');
 248                 $fb_token  = get_pconfig($a->user['uid'],'facebook','access_token');
 249                 $url = 'https://graph.facebook.com/me/accounts';
 250                 $x = fetch_url($url."?access_token=".$fb_token);
 251                 $accounts = json_decode($x);
 252
 253                 $o .= t("Post to page/group:")."<select name='post_to_page'>";
 254                 if (intval($post_to_page) == 0)
 255                         $o .= "<option value='0-0' selected>".t('None')."</option>";
 256                 else
 257                         $o .= "<option value='0-0'>".t('None')."</option>";
 258
 259                 foreach($accounts->data as $account) {
 260                         if (is_array($account->perms))
 261                                 if ($post_to_page == $account->id)
 262                                         $o .= "<option value='".$account->id."-".$account->access_token."' selected>".$account->name."</option>";
 263                                 else
 264                                         $o .= "<option value='".$account->id."-".$account->access_token."'>".$account->name."</option>";
 265                 }
 266
 267                 $url = 'https://graph.facebook.com/me/groups';
 268                 $x = fetch_url($url."?access_token=".$fb_token);
 269                 $groups = json_decode($x);
 270
 271                 foreach($groups->data as $group) {
 272                         if ($post_to_page == $group->id)
 273                                 $o .= "<option value='".$group->id."-0' selected>".$group->name."</option>";
 274                         else
 275                                 $o .= "<option value='".$group->id."-0'>".$group->name."</option>";
 276                 }
 277
 278                 $o .= "</select>";
 279
 280                 $o .= '<p><input type="submit" name="submit" value="' . t('Submit') . '" /></form></div>';
 281
 282         }
 283
 284         return $o;
 285 }
 286
 287 /**
 288  * @param App $a
 289  * @param null|object $b
 290  */
 291 function fbpost_plugin_settings(&$a,&$b) {
 292
 293         $b .= '<div class="settings-block">';
 294         $b .= '<h3>' . t('Facebook') . '</h3>';
 295         $b .= '<a href="fbpost">' . t('Facebook Post Settings') . '</a><br />';
 296         $b .= '</div>';
 297
 298 }
 299
 300
 301 /**
 302  * @param App $a
 303  * @param null|object $o
 304  */
 305 function fbpost_plugin_admin(&$a, &$o){
 306
 307
 308         $o = '<input type="hidden" name="form_security_token" value="' . get_form_security_token("fbsave") . '">';
 309
 310         $o .= '<h4>' . t('Facebook API Key') . '</h4>';
 311
 312         $appid  = get_config('facebook', 'appid'  );
 313         $appsecret = get_config('facebook', 'appsecret' );
 314
 315         $ret1 = q("SELECT `v` FROM `config` WHERE `cat` = 'facebook' AND `k` = 'appid' LIMIT 1");
 316         $ret2 = q("SELECT `v` FROM `config` WHERE `cat` = 'facebook' AND `k` = 'appsecret' LIMIT 1");
 317         if ((count($ret1) > 0 && $ret1[0]['v'] != $appid) || (count($ret2) > 0 && $ret2[0]['v'] != $appsecret)) $o .= t('Error: it appears that you have specified the App-ID and -Secret in your .htconfig.php file. As long as they are specified there, they cannot be set using this form.<br><br>');
 318
 319         $o .= '<label for="fb_appid">' . t('App-ID / API-Key') . '</label><input id="fb_appid" name="appid" type="text" value="' . escape_tags($appid ? $appid : "") . '"><br style="clear: both;">';
 320         $o .= '<label for="fb_appsecret">' . t('Application secret') . '</label><input id="fb_appsecret" name="appsecret" type="text" value="' . escape_tags($appsecret ? $appsecret : "") . '"><br style="clear: both;">';
 321
 322         $o .= '<input type="submit" name="fb_save_keys" value="' . t('Save') . '">';
 323
 324 }
 325
 326 /**
 327  * @param App $a
 328  */
 329
 330 function fbpost_plugin_admin_post(&$a){
 331         check_form_security_token_redirectOnErr('/admin/plugins/fbpost', 'fbsave');
 332
 333         if (x($_REQUEST,'fb_save_keys')) {
 334                 set_config('facebook', 'appid', $_REQUEST['appid']);
 335                 set_config('facebook', 'appsecret', $_REQUEST['appsecret']);
 336
 337                 info(t('The new values have been saved.'));
 338         }
 339
 340 }
 341
 342 /**
 343  * @param App $a
 344  * @param object $b
 345  * @return mixed
 346  */
 347 function fbpost_jot_nets(&$a,&$b) {
 348         if(! local_user())
 349                 return;
 350
 351         $fb_post = get_pconfig(local_user(),'facebook','post');
 352         if(intval($fb_post) == 1) {
 353                 $fb_defpost = get_pconfig(local_user(),'facebook','post_by_default');
 354                 $selected = ((intval($fb_defpost) == 1) ? ' checked="checked" ' : '');
 355                 $b .= '<div class="profile-jot-net"><input type="checkbox" name="facebook_enable"' . $selected . ' value="1" /> '
 356                         . t('Post to Facebook') . '</div>';
 357         }
 358 }
 359
 360 function fbpost_ShareAttributes($match) {
 361
 362         $attributes = $match[1];
 363
 364         $author = "";
 365         preg_match("/author='(.*?)'/ism", $attributes, $matches);
 366         if ($matches[1] != "")
 367                 $author = $matches[1];
 368
 369         preg_match('/author="(.*?)"/ism', $attributes, $matches);
 370         if ($matches[1] != "")
 371                 $author = $matches[1];
 372
 373         $headline = '<div class="shared_header">';
 374
 375         $headline .= sprintf(t('%s:'), $author);
 376
 377         $headline .= "</div>";
 378
 379         //$text = "<br />".$headline."</strong><blockquote>".$match[2]."</blockquote>";
 380         $text = "\n\t".$match[2].":\t";
 381
 382         return($text);
 383 }
 384
 385
 386 /**
 387  * @param App $a
 388  * @param object $b
 389  * @return mixed
 390  */
 391 function fbpost_post_hook(&$a,&$b) {
 392
 393
 394         if($b['deleted'] || ($b['created'] !== $b['edited']))
 395                 return;
 396
 397         // if post comes from facebook don't send it back
 398         if($b['app'] == "Facebook")
 399                 return;
 400
 401         /**
 402          * Post to Facebook stream
 403          */
 404
 405         require_once('include/group.php');
 406         require_once('include/html2plain.php');
 407
 408         logger('Facebook post');
 409
 410         $reply = false;
 411         $likes = false;
 412
 413         $deny_arr = array();
 414         $allow_arr = array();
 415
 416         $toplevel = (($b['id'] == $b['parent']) ? true : false);
 417
 418
 419         $linking = ((get_pconfig($b['uid'],'facebook','no_linking')) ? 0 : 1);
 420
 421         if((! $toplevel) && ($linking)) {
 422                 $r = q("SELECT * FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1",
 423                         intval($b['parent']),
 424                         intval($b['uid'])
 425                 );
 426                 if(count($r) && substr($r[0]['uri'],0,4) === 'fb::')
 427                         $reply = substr($r[0]['uri'],4);
 428                 elseif(count($r) && substr($r[0]['extid'],0,4) === 'fb::')
 429                         $reply = substr($r[0]['extid'],4);
 430                 else
 431                         return;
 432
 433                 $u = q("SELECT * FROM user where uid = %d limit 1",
 434                         intval($b['uid'])
 435                 );
 436                 if(! count($u))
 437                         return;
 438
 439                 // only accept comments from the item owner. Other contacts are unknown to FB.
 440
 441                 if(! link_compare($b['author-link'], $a->get_baseurl() . '/profile/' . $u[0]['nickname']))
 442                         return;
 443
 444
 445                 logger('facebook reply id=' . $reply);
 446         }
 447
 448         if(strstr($b['postopts'],'facebook') || ($b['private']) || ($reply)) {
 449
 450                 if($b['private'] && $reply === false) {
 451                         $allow_people = expand_acl($b['allow_cid']);
 452                         $allow_groups = expand_groups(expand_acl($b['allow_gid']));
 453                         $deny_people  = expand_acl($b['deny_cid']);
 454                         $deny_groups  = expand_groups(expand_acl($b['deny_gid']));
 455
 456                         $recipients = array_unique(array_merge($allow_people,$allow_groups));
 457                         $deny = array_unique(array_merge($deny_people,$deny_groups));
 458
 459                         $allow_str = dbesc(implode(', ',$recipients));
 460                         if($allow_str) {
 461                                 $r = q("SELECT `notify` FROM `contact` WHERE `id` IN ( $allow_str ) AND `network` = 'face'");
 462                                 if(count($r))
 463                                         foreach($r as $rr)
 464                                                 $allow_arr[] = $rr['notify'];
 465                         }
 466
 467                         $deny_str = dbesc(implode(', ',$deny));
 468                         if($deny_str) {
 469                                 $r = q("SELECT `notify` FROM `contact` WHERE `id` IN ( $deny_str ) AND `network` = 'face'");
 470                                 if(count($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                         $fb_token  = get_pconfig($b['uid'],'facebook','access_token');
 506
 507
 508                         // post to facebook if it's a public post and we've ticked the 'post to Facebook' box,
 509                         // or it's a private message with facebook participants
 510                         // or it's a reply or likes action to an existing facebook post
 511
 512                         if($fb_token && ($toplevel || $b['private'] || $reply)) {
 513                                 logger('facebook: able to post');
 514                                 require_once('library/facebook.php');
 515                                 require_once('include/bbcode.php');
 516
 517                                 $msg = $b['body'];
 518
 519                                 logger('Facebook post: original msg=' . $msg, LOGGER_DATA);
 520
 521                                 // make links readable before we strip the code
 522
 523                                 // unless it's a dislike - just send the text as a comment
 524
 525                                 // if($b['verb'] == ACTIVITY_DISLIKE)
 526                                 //      $msg = trim(strip_tags(bbcode($msg)));
 527
 528                                 // Old code
 529                                 /*$search_str = $a->get_baseurl() . '/search';
 530
 531                                 if(preg_match("/\[url=(.*?)\](.*?)\[\/url\]/is",$msg,$matches)) {
 532
 533                                         // don't use hashtags for message link
 534
 535                                         if(strpos($matches[2],$search_str) === false) {
 536                                                 $link = $matches[1];
 537                                                 if(substr($matches[2],0,5) != '[img]')
 538                                                         $linkname = $matches[2];
 539                                         }
 540                                 }
 541
 542                                 // strip tag links to avoid link clutter, this really should be
 543                                 // configurable because we're losing information
 544
 545                                 $msg = preg_replace("/\#\[url=(.*?)\](.*?)\[\/url\]/is",'#$2',$msg);
 546
 547                                 // provide the link separately for normal links
 548                                 $msg = preg_replace("/\[url=(.*?)\](.*?)\[\/url\]/is",'$2 $1',$msg);
 549
 550                                 if(preg_match("/\[img\](.*?)\[\/img\]/is",$msg,$matches))
 551                                         $image = $matches[1];
 552
 553                                 $msg = preg_replace("/\[img\](.*?)\[\/img\]/is", t('Image: ') . '$1', $msg);
 554
 555                                 if((strpos($link,z_root()) !== false) && (! $image))
 556                                         $image = $a->get_baseurl() . '/images/friendica-64.jpg';
 557
 558                                 $msg = trim(strip_tags(bbcode($msg)));*/
 559
 560                                 // New code
 561
 562                                 // Looking for the first image
 563                                 $image = '';
 564                                 if(preg_match("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/is",$b['body'],$matches))
 565                                         $image = $matches[3];
 566
 567                                 if ($image == '')
 568                                         if(preg_match("/\[img\](.*?)\[\/img\]/is",$b['body'],$matches))
 569                                                 $image = $matches[1];
 570
 571                                 // When saved into the database the content is sent through htmlspecialchars
 572                                 // That means that we have to decode all image-urls
 573                                 $image = htmlspecialchars_decode($image);
 574
 575                                 // Checking for a bookmark element
 576                                 $body = $b['body'];
 577                                 if (strpos($body, "[bookmark") !== false) {
 578                                         // splitting the text in two parts:
 579                                         // before and after the bookmark
 580                                         $pos = strpos($body, "[bookmark");
 581                                         $body1 = substr($body, 0, $pos);
 582                                         $body2 = substr($body, $pos);
 583
 584                                         // Removing the bookmark and all quotes after the bookmark
 585                                         // they are mostly only the content after the bookmark.
 586                                         $body2 = preg_replace("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism",'',$body2);
 587                                         $body2 = preg_replace("/\[quote\=([^\]]*)\](.*?)\[\/quote\]/ism",'',$body2);
 588                                         $body2 = preg_replace("/\[quote\](.*?)\[\/quote\]/ism",'',$body2);
 589
 590                                         $body = $body1.$body2;
 591                                 }
 592
 593                                 // Convert recycle signs
 594                                 $body = str_replace("\t", " ", $body);
 595                                 // recycle 1
 596                                 $recycle = html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8');
 597                                 $body = preg_replace( '/'.$recycle.'\[url\=(\w+.*?)\](\w+.*?)\[\/url\]/i', "\n\t$2:\t", $body);
 598                                 // recycle 2 (Test)
 599                                 $recycle = html_entity_decode("&#x25CC; ", ENT_QUOTES, 'UTF-8');
 600                                 $body = preg_replace( '/'.$recycle.'\[url\=(\w+.*?)\](\w+.*?)\[\/url\]/i', "\n\t$2:\t", $body);
 601
 602                                 // share element
 603                                 $body = preg_replace_callback("/\[share(.*?)\]\s?(.*?)\s?\[\/share\]/ism","fbpost_ShareAttributes", $body);
 604
 605                                 $bodyparts = explode("\t", $body);
 606                                 // Doesn't help with multiple repeats - the problem has to be solved later
 607                                 if (sizeof($bodyparts) == 3) {
 608                                         $html = bbcode($bodyparts[2], false, false);
 609                                         $test = trim(html2plain($html, 0, true));
 610
 611                                         if (trim($bodyparts[0]) == "")
 612                                                 $body = trim($bodyparts[2]);
 613                                         else if (trim($test) == "")
 614                                                 $body = trim($bodyparts[0]);
 615                                         else
 616                                                 $body = trim($bodyparts[0])."\n\n".trim($bodyparts[1])."[quote]".trim($bodyparts[2])."[/quote]";
 617                                 } else
 618                                         $body = str_replace("\t", "", $body);
 619
 620                                 // At first convert the text to html
 621                                 $html = bbcode($body, false, false);
 622
 623                                 // Then convert it to plain text
 624                                 $msg = trim($b['title']." \n\n".html2plain($html, 0, true));
 625
 626                                 // Removing useless spaces
 627                                 if (substr($msg, -2) == "«")
 628                                         $msg = trim(substr($msg, 0, -2))."«";
 629
 630                                 $msg = html_entity_decode($msg,ENT_QUOTES,'UTF-8');
 631
 632                                 // Removing multiple newlines
 633                                 while (strpos($msg, "\n\n\n") !== false)
 634                                         $msg = str_replace("\n\n\n", "\n\n", $msg);
 635
 636                                 // add any attachments as text urls
 637                                 $arr = explode(',',$b['attach']);
 638
 639                                 if(count($arr)) {
 640                                         $msg .= "\n";
 641                                         foreach($arr as $r) {
 642                                                 $matches = false;
 643                                                 $cnt = preg_match('|\[attach\]href=\"(.*?)\" size=\"(.*?)\" type=\"(.*?)\" title=\"(.*?)\"\[\/attach\]|',$r,$matches);
 644                                                 if($cnt) {
 645                                                         $msg .= "\n".$matches[1];
 646                                                 }
 647                                         }
 648                                 }
 649
 650                                 $link = '';
 651                                 $linkname = '';
 652                                 // look for bookmark-bbcode and handle it with priority
 653                                 if(preg_match("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/is",$b['body'],$matches)) {
 654                                         $link = $matches[1];
 655                                         $linkname = $matches[2];
 656                                 }
 657
 658                                 // If there is no bookmark element then take the first link
 659                                 if ($link == '') {
 660                                         $links = collecturls($html);
 661                                         if (sizeof($links) > 0) {
 662                                                 reset($links);
 663                                                 $link = current($links);
 664                                         }
 665                                 }
 666
 667                                 // Remove trailing and leading spaces
 668                                 $msg = trim($msg);
 669
 670
 671                                 // Fallback - if message is empty
 672                                 if(!strlen($msg))
 673                                         $msg = $linkname;
 674
 675                                 if(!strlen($msg))
 676                                         $msg = $link;
 677
 678                                 if(!strlen($msg))
 679                                         $msg = $image;
 680
 681                                 // If there is nothing to post then exit
 682                                 if(!strlen($msg))
 683                                         return;
 684
 685                                 logger('Facebook post: msg=' . $msg, LOGGER_DATA);
 686
 687                                 $video = "";
 688
 689                                 if($likes) {
 690                                         $postvars = array('access_token' => $fb_token);
 691                                 } else {
 692                                         // message, picture, link, name, caption, description, source, place, tags
 693                                         if(trim($link) != "")
 694                                                 if (@exif_imagetype($link) != 0) {
 695                                                         $image = $link;
 696                                                         $link = "";
 697                                                 }
 698
 699                                         $postvars = array(
 700                                                 'access_token' => $fb_token,
 701                                                 'message' => $msg
 702                                         );
 703                                         if(trim($image) != "")
 704                                                 $postvars['picture'] = $image;
 705
 706                                         if(trim($link) != "") {
 707                                                 $postvars['link'] = $link;
 708
 709                                                 if ((stristr($link,'youtube')) || (stristr($link,'youtu.be')) || (stristr($link,'vimeo'))) {
 710                                                         $video = $link;
 711                                                 }
 712                                         }
 713                                         if(trim($linkname) != "")
 714                                                 $postvars['name'] = $linkname;
 715                                 }
 716
 717                                 if(($b['private']) && ($toplevel)) {
 718                                         $postvars['privacy'] = '{"value": "CUSTOM", "friends": "SOME_FRIENDS"';
 719                                         if(count($allow_arr))
 720                                                 $postvars['privacy'] .= ',"allow": "' . implode(',',$allow_arr) . '"';
 721                                         if(count($deny_arr))
 722                                                 $postvars['privacy'] .= ',"deny": "' . implode(',',$deny_arr) . '"';
 723                                         $postvars['privacy'] .= '}';
 724
 725                                 }
 726
 727                                 $post_to_page = get_pconfig($b['uid'],'facebook','post_to_page');
 728                                 $page_access_token = get_pconfig($b['uid'],'facebook','page_access_token');
 729                                 if ((intval($post_to_page) != 0) and ($page_access_token != ""))
 730                                         $target = $post_to_page;
 731                                 else
 732                                         $target = "me";
 733
 734                                 if($reply) {
 735                                         $url = 'https://graph.facebook.com/' . $reply . '/' . (($likes) ? 'likes' : 'comments');
 736                                 } else if (($video != "") or (($image == "") and ($link != ""))) {
 737                                         // If it is a link to a video or a link without a preview picture then post it as a link
 738                                         if ($video != "")
 739                                                 $link = $video;
 740
 741                                         $postvars = array(
 742                                                 'access_token' => $fb_token,
 743                                                 'link' => $link,
 744                                         );
 745                                         if ($msg != $video)
 746                                                 $postvars['message'] = $msg;
 747
 748                                         $url = 'https://graph.facebook.com/'.$target.'/links';
 749                                 } else if (($link == "") and ($image != "")) {
 750                                         // If it is only an image without a page link then post this image as a photo
 751                                         $postvars = array(
 752                                                 'access_token' => $fb_token,
 753                                                 'url' => $image,
 754                                         );
 755                                         if ($msg != $image)
 756                                                 $postvars['message'] = $msg;
 757
 758                                         $url = 'https://graph.facebook.com/'.$target.'/photos';
 759                                 } else if (($link != "") or ($image != "") or ($b['title'] == '') or (strlen($msg) < 500)) {
 760                                         $url = 'https://graph.facebook.com/'.$target.'/feed';
 761                                         if (!get_pconfig($b['uid'],'facebook','suppress_view_on_friendica') and $b['plink'])
 762                                                 $postvars['actions'] = '{"name": "' . t('View on Friendica') . '", "link": "' .  $b['plink'] . '"}';
 763                                 } else {
 764                                         // if its only a message and a subject and the message is larger than 500 characters then post it as note
 765                                         $postvars = array(
 766                                                 'access_token' => $fb_token,
 767                                                 'message' => bbcode($b['body'], false, false),
 768                                                 'subject' => $b['title'],
 769                                         );
 770                                         $url = 'https://graph.facebook.com/'.$target.'/notes';
 771                                 }
 772
 773                                 // Post to page?
 774                                 if (!$reply and ($target != "me") and $page_access_token)
 775                                         $postvars['access_token'] = $page_access_token;
 776
 777                                 logger('facebook: post to ' . $url);
 778                                 logger('facebook: postvars: ' . print_r($postvars,true));
 779
 780                                 // "test_mode" prevents anything from actually being posted.
 781                                 // Otherwise, let's do it.
 782
 783                                 if(! get_config('facebook','test_mode')) {
 784                                         $x = post_url($url, $postvars);
 785                                         logger('Facebook post returns: ' . $x, LOGGER_DEBUG);
 786
 787                                         $retj = json_decode($x);
 788                                         if($retj->id) {
 789                                                 q("UPDATE `item` SET `extid` = '%s' WHERE `id` = %d LIMIT 1",
 790                                                         dbesc('fb::' . $retj->id),
 791                                                         intval($b['id'])
 792                                                 );
 793                                         }
 794                                         else {
 795                                                 if(! $likes) {
 796                                                         $s = serialize(array('url' => $url, 'item' => $b['id'], 'post' => $postvars));
 797                                                         require_once('include/queue_fn.php');
 798                                                         add_to_queue($a->contact,NETWORK_FACEBOOK,$s);
 799                                                         notice( t('Facebook post failed. Queued for retry.') . EOL);
 800                                                 }
 801
 802                                                 if (isset($retj->error) && $retj->error->type == "OAuthException" && $retj->error->code == 190) {
 803                                                         logger('Facebook session has expired due to changed password.', LOGGER_DEBUG);
 804
 805                                                         $last_notification = get_pconfig($b['uid'], 'facebook', 'session_expired_mailsent');
 806                                                         if (!$last_notification || $last_notification < (time() - FACEBOOK_SESSION_ERR_NOTIFICATION_INTERVAL)) {
 807                                                                 require_once('include/enotify.php');
 808
 809                                                                 $r = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1", intval($b['uid']) );
 810                                                                 notification(array(
 811                                                                         'uid' => $b['uid'],
 812                                                                         'type' => NOTIFY_SYSTEM,
 813                                                                         'system_type' => 'facebook_connection_invalid',
 814                                                                         'language'     => $r[0]['language'],
 815                                                                         'to_name'      => $r[0]['username'],
 816                                                                         'to_email'     => $r[0]['email'],
 817                                                                         'source_name'  => t('Administrator'),
 818                                                                         'source_link'  => $a->config["system"]["url"],
 819                                                                         'source_photo' => $a->config["system"]["url"] . '/images/person-80.jpg',
 820                                                                 ));
 821
 822                                                                 set_pconfig($b['uid'], 'facebook', 'session_expired_mailsent', time());
 823                                                         } else logger('Facebook: No notification, as the last one was sent on ' . $last_notification, LOGGER_DEBUG);
 824                                                 }
 825                                         }
 826                                 }
 827                         }
 828                 }
 829         }
 830 }
 831
 832 /**
 833  * @param App $app
 834  * @param object $data
 835  */
 836 function fbpost_enotify(&$app, &$data) {
 837         if (x($data, 'params') && $data['params']['type'] == NOTIFY_SYSTEM && x($data['params'], 'system_type') && $data['params']['system_type'] == 'facebook_connection_invalid') {
 838                 $data['itemlink'] = '/facebook';
 839                 $data['epreamble'] = $data['preamble'] = t('Your Facebook connection became invalid. Please Re-authenticate.');
 840                 $data['subject'] = t('Facebook connection became invalid');
 841                 $data['body'] = sprintf( t("Hi %1\$s,\n\nThe connection between your accounts on %2\$s and Facebook became invalid. This usually happens after you change your Facebook-password. To enable the connection again, you have to %3\$sre-authenticate the Facebook-connector%4\$s."), $data['params']['to_name'], "[url=" . $app->config["system"]["url"] . "]" . $app->config["sitename"] . "[/url]", "[url=" . $app->config["system"]["url"] . "/facebook]", "[/url]");
 842         }
 843 }
 844
 845 /**
 846  * @param App $a
 847  * @param object $b
 848  */
 849 function fbpost_post_local(&$a,&$b) {
 850
 851         // Figure out if Facebook posting is enabled for this post and file it in 'postopts'
 852         // where we will discover it during background delivery.
 853
 854         // This can only be triggered by a local user posting to their own wall.
 855
 856         if((local_user()) && (local_user() == $b['uid'])) {
 857
 858                 $fb_post   = intval(get_pconfig(local_user(),'facebook','post'));
 859                 $fb_enable = (($fb_post && x($_REQUEST,'facebook_enable')) ? intval($_REQUEST['facebook_enable']) : 0);
 860
 861                 // if API is used, default to the chosen settings
 862                 // but allow a specific override
 863
 864                 if($_REQUEST['api_source'] && intval(get_pconfig(local_user(),'facebook','post_by_default'))) {
 865                         if(! x($_REQUEST,'facebook_enable'))
 866                                 $fb_enable = 1;
 867                 }
 868
 869                 if(! $fb_enable)
 870                         return;
 871
 872                 if(strlen($b['postopts']))
 873                         $b['postopts'] .= ',';
 874                 $b['postopts'] .= 'facebook';
 875         }
 876 }
 877
 878
 879 /**
 880  * @param App $a
 881  * @param object $b
 882  */
 883 function fbpost_queue_hook(&$a,&$b) {
 884
 885         $qi = q("SELECT * FROM `queue` WHERE `network` = '%s'",
 886                 dbesc(NETWORK_FACEBOOK)
 887         );
 888         if(! count($qi))
 889                 return;
 890
 891         require_once('include/queue_fn.php');
 892
 893         foreach($qi as $x) {
 894                 if($x['network'] !== NETWORK_FACEBOOK)
 895                         continue;
 896
 897                 logger('facebook_queue: run');
 898
 899                 $r = q("SELECT `user`.* FROM `user` LEFT JOIN `contact` on `contact`.`uid` = `user`.`uid`
 900                         WHERE `contact`.`self` = 1 AND `contact`.`id` = %d LIMIT 1",
 901                         intval($x['cid'])
 902                 );
 903                 if(! count($r))
 904                         continue;
 905
 906                 $user = $r[0];
 907
 908                 $appid  = get_config('facebook', 'appid'  );
 909                 $secret = get_config('facebook', 'appsecret' );
 910
 911                 if($appid && $secret) {
 912                         $fb_post   = intval(get_pconfig($user['uid'],'facebook','post'));
 913                         $fb_token  = get_pconfig($user['uid'],'facebook','access_token');
 914
 915                         if($fb_post && $fb_token) {
 916                                 logger('facebook_queue: able to post');
 917                                 require_once('library/facebook.php');
 918
 919                                 $z = unserialize($x['content']);
 920                                 $item = $z['item'];
 921                                 $j = post_url($z['url'],$z['post']);
 922
 923                                 $retj = json_decode($j);
 924                                 if($retj->id) {
 925                                         q("UPDATE `item` SET `extid` = '%s' WHERE `id` = %d LIMIT 1",
 926                                                 dbesc('fb::' . $retj->id),
 927                                                 intval($item)
 928                                         );
 929                                         logger('facebook_queue: success: ' . $j);
 930                                         remove_queue_item($x['id']);
 931                                 }
 932                                 else {
 933                                         logger('facebook_queue: failed: ' . $j);
 934                                         update_queue_time($x['id']);
 935                                 }
 936                         }
 937                 }
 938         }
 939 }
 940
 941
 942 /**
 943  * @return bool|string
 944  */
 945 function fbpost_get_app_access_token() {
 946
 947         $acc_token = get_config('facebook','app_access_token');
 948
 949         if ($acc_token !== false) return $acc_token;
 950
 951         $appid = get_config('facebook','appid');
 952         $appsecret = get_config('facebook', 'appsecret');
 953
 954         if ($appid === false || $appsecret === false) {
 955                 logger('fb_get_app_access_token: appid and/or appsecret not set', LOGGER_DEBUG);
 956                 return false;
 957         }
 958         logger('https://graph.facebook.com/oauth/access_token?client_id=' . $appid . '&client_secret=' . $appsecret . '&grant_type=client_credentials', LOGGER_DATA);
 959         $x = fetch_url('https://graph.facebook.com/oauth/access_token?client_id=' . $appid . '&client_secret=' . $appsecret . '&grant_type=client_credentials');
 960
 961         if(strpos($x,'access_token=') !== false) {
 962                 logger('fb_get_app_access_token: returned access token: ' . $x, LOGGER_DATA);
 963
 964                 $token = str_replace('access_token=', '', $x);
 965                 if(strpos($token,'&') !== false)
 966                         $token = substr($token,0,strpos($token,'&'));
 967
 968                 if ($token == "") {
 969                         logger('fb_get_app_access_token: empty token: ' . $x, LOGGER_DEBUG);
 970                         return false;
 971                 }
 972                 set_config('facebook','app_access_token',$token);
 973                 return $token;
 974         } else {
 975                 logger('fb_get_app_access_token: response did not contain an access_token: ' . $x, LOGGER_DATA);
 976                 return false;
 977         }
 978 }
 979
 980 function fbpost_cron($a,$b) {
 981         $last = get_config('facebook','last_poll');
 982
 983         $poll_interval = intval(get_config('facebook','poll_interval'));
 984         if(! $poll_interval)
 985                 $poll_interval = FACEBOOK_DEFAULT_POLL_INTERVAL;
 986
 987         if($last) {
 988                 $next = $last + ($poll_interval * 60);
 989                 if($next > time()) {
 990                         logger('facebook: poll intervall not reached');
 991                         return;
 992                 }
 993         }
 994         logger('facebook: cron_start');
 995
 996         $r = q("SELECT * FROM `pconfig` WHERE `cat` = 'facebook' AND `k` = 'mirror_posts' AND `v` = '1' ORDER BY RAND() ");
 997         if(count($r)) {
 998                 foreach($r as $rr) {
 999                         logger('facebook: fetching for user '.$rr['uid']);
1000                         fbpost_fetchwall($a, $rr['uid']);
1001                 }
1002         }
1003
1004         logger('facebook: cron_end');
1005
1006         set_config('facebook','last_poll', time());
1007 }
1008
1009 function fbpost_fetchwall($a, $uid) {
1010         $access_token = get_pconfig($uid,'facebook','access_token');
1011         $post_to_page = get_pconfig($uid,'facebook','post_to_page');
1012         $lastcreated = get_pconfig($uid,'facebook','last_created');
1013
1014         if ((int)$post_to_page == 0)
1015                 $post_to_page = "me";
1016
1017         $url = "https://graph.facebook.com/".$post_to_page."/feed?access_token=".$access_token;
1018
1019         if ($lastcreated != "")
1020                 $url .= "&since=".urlencode($lastcreated);
1021
1022         $feed = fetch_url($url);
1023         $data = json_decode($feed);
1024         $items = array_reverse($data->data);
1025
1026         foreach ($items as $item) {
1027                 if ($item->created_time > $lastcreated)
1028                         $lastcreated = $item->created_time;
1029
1030                 if ($item->application->id == get_config('facebook','appid'))
1031                         continue;
1032
1033                 if(isset($item->privacy) && ($item->privacy->value !== 'EVERYONE') && ($item->privacy->value !== ''))
1034                         continue;
1035
1036                 $_SESSION["authenticated"] = true;
1037                 $_SESSION["uid"] = $uid;
1038
1039                 $_REQUEST["type"] = "wall";
1040                 $_REQUEST["api_source"] = true;
1041                 $_REQUEST["profile_uid"] = $uid;
1042                 $_REQUEST["source"] = "Facebook";
1043
1044                 $_REQUEST["body"] = (isset($item->message) ? escape_tags($item->message) : '');
1045
1046                 if(isset($item->name) and isset($item->link))
1047                         $_REQUEST["body"] .= "\n\n[bookmark=".$item->link."]".$item->name."[/bookmark]";
1048                 elseif (isset($item->name))
1049                         $_REQUEST["body"] .= "\n\n[b]" . $item->name."[/b]";
1050
1051                 /*if(isset($item->caption)) {
1052                         if(!isset($item->name) and isset($item->link))
1053                                 $_REQUEST["body"] .= "\n\n[bookmark=".$item->link."]".$item->caption."[/bookmark]";
1054                         //else
1055                         //      $_REQUEST["body"] .= "[i]" . $item->caption."[/i]\n";
1056                         }
1057
1058                         if(!isset($item->caption) and !isset($item->name)) {
1059                                 if (isset($item->link))
1060                                         $_REQUEST["body"] .= "\n[url]".$item->link."[/url]\n";
1061                                 else
1062                                         $_REQUEST["body"] .= "\n";
1063                 }*/
1064
1065                 $quote = "";
1066                 if(isset($item->description) and ($item->type != "photo"))
1067                         $quote = $item->description;
1068
1069                 if(isset($item->caption) and ($item->type == "photo"))
1070                         $quote = $item->caption;
1071
1072                 //if (isset($item->properties))
1073                 //      foreach ($item->properties as $property)
1074                 //              $quote .= "\n".$property->name.": [url=".$property->href."]".$property->text."[/url]";
1075
1076                 if ($quote)
1077                         $_REQUEST["body"] .= "\n[quote]".$quote."[/quote]";
1078
1079                 // Only import the picture when the message is no video
1080                 // oembed display a picture of the video as well
1081                 //if ($item->type != "video") {
1082                 if (($item->type != "video") and ($item->type != "photo")) {
1083                         if(isset($item->picture) && isset($item->link))
1084                                 $_REQUEST["body"] .= "\n".'[url='.$item->link.'][img]'.fpost_cleanpicture($item->picture).'[/img][/url]';
1085                         else {
1086                                 if (isset($item->picture))
1087                                         $_REQUEST["body"] .= "\n".'[img]'.fpost_cleanpicture($item->picture).'[/img]';
1088                                 // if just a link, it may be a wall photo - check
1089                                 if(isset($item->link))
1090                                         $_REQUEST["body"] .= fbpost_get_photo($uid,$item->link);
1091                         }
1092                 }
1093
1094                 /*if (($datarray['app'] == "Events") and isset($item->actions))
1095                         foreach ($item->actions as $action)
1096                                 if ($action->name == "View")
1097                                         $_REQUEST["body"] .= " [url=".$action->link."]".$item->story."[/url]";
1098                 */
1099
1100                 if(trim($_REQUEST["body"]) == '') {
1101                         logger('facebook: empty body '.$item->id.' '.print_r($item, true));
1102                         continue;
1103                 }
1104
1105                 $_REQUEST["body"] = trim($_REQUEST["body"]);
1106
1107                 if (isset($item->place)) {
1108                         if ($item->place->name or $item->place->location->street or
1109                                 $item->place->location->city or $item->place->location->country) {
1110                                 $_REQUEST["location"] = '';
1111                                 if ($item->place->name)
1112                                         $_REQUEST["location"] .= $item->place->name;
1113                                 if ($item->place->location->street)
1114                                         $_REQUEST["location"] .= " ".$item->place->location->street;
1115                                 if ($item->place->location->city)
1116                                         $_REQUEST["location"] .= " ".$item->place->location->city;
1117                                 if ($item->place->location->country)
1118                                         $_REQUEST["location"] .= " ".$item->place->location->country;
1119
1120                                 $_REQUEST["location"] = trim($_REQUEST["location"]);
1121                         }
1122                         if ($item->place->location->latitude and $item->place->location->longitude)
1123                                 $_REQUEST["coord"] = substr($item->place->location->latitude, 0, 8)
1124                                                 .' '.substr($item->place->location->longitude, 0, 8);
1125                 }
1126
1127                 //print_r($_REQUEST);
1128                 logger('facebook: posting for user '.$uid);
1129
1130                 require_once('mod/item.php');
1131                 item_post($a);
1132         }
1133
1134         set_pconfig($uid,'facebook','last_created', $lastcreated);
1135 }
1136
1137 function fbpost_get_photo($uid,$link) {
1138         $access_token = get_pconfig($uid,'facebook','access_token');
1139         if(! $access_token || (! stristr($link,'facebook.com/photo.php')))
1140                 return "";
1141
1142         $ret = preg_match('/fbid=([0-9]*)/',$link,$match);
1143         if($ret)
1144                 $photo_id = $match[1];
1145         else
1146                 return "";
1147
1148         $x = fetch_url('https://graph.facebook.com/'.$photo_id.'?access_token='.$access_token);
1149         $j = json_decode($x);
1150         if($j->picture)
1151                 return "\n\n".'[url='.$link.'][img]'.fpost_cleanpicture($j->picture).'[/img][/url]';
1152
1153         return "";
1154 }
1155
1156 function fpost_cleanpicture($image) {
1157
1158         if (strpos($image, ".fbcdn.net/") and (substr($image, -6) == "_s.jpg"))
1159                 $image = substr($image, 0, -6)."_n.jpg";
1160
1161         $queryvar = fbpost_parse_query($image);
1162         if ($queryvar['url'] != "")
1163                 $image = urldecode($queryvar['url']);
1164
1165         return $image;
1166 }
1167
1168 function fbpost_parse_query($var) {
1169         /**
1170          *  Use this function to parse out the query array element from
1171          *  the output of parse_url().
1172         */
1173         $var  = parse_url($var, PHP_URL_QUERY);
1174         $var  = html_entity_decode($var);
1175         $var  = explode('&', $var);
1176         $arr  = array();
1177
1178         foreach($var as $val) {
1179                 $x          = explode('=', $val);
1180                 $arr[$x[0]] = $x[1];
1181         }
1182
1183         unset($val, $x, $var);
1184         return $arr;
1185 }