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                 $value = ((x($_POST,'post_by_default')) ? intval($_POST['post_by_default']) : 0);
 138                 set_pconfig($uid,'facebook','post_by_default', $value);
 139
 140                 $value = ((x($_POST,'mirror_posts')) ? intval($_POST['mirror_posts']) : 0);
 141                 set_pconfig($uid,'facebook','mirror_posts', $value);
 142
 143                 $value = ((x($_POST,'suppress_view_on_friendica')) ? intval($_POST['suppress_view_on_friendica']) : 0);
 144                 set_pconfig($uid,'facebook','suppress_view_on_friendica', $value);
 145
 146                 $value = ((x($_POST,'post_to_page')) ? $_POST['post_to_page'] : "0-0");
 147                 $values = explode("-", $value);
 148                 set_pconfig($uid,'facebook','post_to_page', $values[0]);
 149                 set_pconfig($uid,'facebook','page_access_token', $values[1]);
 150
 151                 $result = q("SELECT `installed` FROM `addon` WHERE `name` = 'fbsync' AND `installed`");
 152                 if (count($result) > 0) {
 153                         set_pconfig(local_user(),'fbsync','sync',intval($_POST['fbsync']));
 154                         set_pconfig(local_user(),'fbsync','create_user',intval($_POST['create_user']));
 155                 }
 156
 157                 info( t('Settings updated.') . EOL);
 158         }
 159
 160         return;
 161 }
 162
 163 // Facebook settings form
 164
 165 /**
 166  * @param App $a
 167  * @return string
 168  */
 169 function fbpost_content(&$a) {
 170
 171         if(! local_user()) {
 172                 notice( t('Permission denied.') . EOL);
 173                 return '';
 174         }
 175
 176
 177         if(! service_class_allows(local_user(),'facebook_connect')) {
 178                 notice( t('Permission denied.') . EOL);
 179                 return upgrade_bool_message();
 180         }
 181
 182
 183         if($a->argc > 1 && $a->argv[1] === 'remove') {
 184                 del_pconfig(local_user(),'facebook','post');
 185                 info( t('Facebook Post disabled') . EOL);
 186         }
 187
 188         require_once("mod/settings.php");
 189         settings_init($a);
 190
 191         $o = '';
 192         $accounts = array();
 193
 194         $fb_installed = false;
 195         if (get_pconfig(local_user(),'facebook','post')) {
 196                 $access_token = get_pconfig(local_user(),'facebook','access_token');
 197                 if ($access_token) {
 198                         // fetching the list of accounts to check, if facebook is working
 199                         // The value is needed several lines below.
 200                         $url = 'https://graph.facebook.com/me/accounts';
 201                         $s = fetch_url($url."?access_token=".$access_token, false, $redirects, 10);
 202                         if($s) {
 203                                 $accounts = json_decode($s);
 204                                 if (isset($accounts->data))
 205                                         $fb_installed = true;
 206                         }
 207
 208                         // I'm not totally sure, if this above will work in every situation,
 209                         // So this old code will be called as well.
 210                         if (!$fb_installed) {
 211                                 $url ="https://graph.facebook.com/me/feed";
 212                                 $s = fetch_url($url."?access_token=".$access_token."&limit=1", false, $redirects, 10);
 213                                 if($s) {
 214                                         $j = json_decode($s);
 215                                         if (isset($j->data))
 216                                                 $fb_installed = true;
 217                                 }
 218                         }
 219                 }
 220         }
 221
 222         $appid = get_config('facebook','appid');
 223
 224         if(! $appid) {
 225                 notice( t('Facebook API key is missing.') . EOL);
 226                 return '';
 227         }
 228
 229         $a->page['htmlhead'] .= '<link rel="stylesheet" type="text/css" href="'
 230                 . $a->get_baseurl() . '/addon/fbpost/fbpost.css' . '" media="all" />' . "\r\n";
 231
 232         $result = q("SELECT `installed` FROM `addon` WHERE `name` = 'fbsync' AND `installed`");
 233         $fbsync = (count($result) > 0);
 234
 235         if($fbsync)
 236                 $title = t('Facebook Import/Export/Mirror');
 237         else
 238                 $title = t('Facebook Export/Mirror');
 239
 240         $o .= '<img class="connector" src="images/facebook.png" /><h3 class="connector">'.$title.'</h3>';
 241
 242         if(! $fb_installed) {
 243                 $o .= '<div id="fbpost-enable-wrapper">';
 244
 245                 //read_stream,publish_stream,manage_pages,photo_upload,user_groups,offline_access
 246
 247                 $o .= '<a href="https://www.facebook.com/dialog/oauth?client_id=' . $appid . '&redirect_uri='
 248                         . $a->get_baseurl() . '/fbpost/' . $a->user['nickname'] . '&scope=export_stream,read_stream,publish_stream,manage_pages,photo_upload,user_groups,publish_actions,user_friends,create_note,share_item,video_upload,status_update">' . t('Install Facebook Post connector for this account.') . '</a>';
 249                 $o .= '</div>';
 250         }
 251
 252         if($fb_installed) {
 253                 $o .= '<div id="fbpost-disable-wrapper">';
 254
 255                 $o .= '<a href="' . $a->get_baseurl() . '/fbpost/remove' . '">' . t('Remove Facebook Post connector') . '</a></div>';
 256
 257                 $o .= '<div id="fbpost-enable-wrapper">';
 258
 259                 $o .= '<a href="https://www.facebook.com/dialog/oauth?client_id=' . $appid . '&redirect_uri='
 260                         . $a->get_baseurl() . '/fbpost/' . $a->user['nickname'] . '&scope=export_stream,read_stream,publish_stream,manage_pages,photo_upload,user_groups,publish_actions,user_friends,create_note,share_item,video_upload,status_update">' . t('Re-authenticate [This is necessary whenever your Facebook password is changed.]') . '</a>';
 261                 $o .= '</div>';
 262
 263                 $o .= '<div id="fbpost-post-default-form">';
 264                 $o .= '<form action="fbpost" method="post" >';
 265                 $post_by_default = get_pconfig(local_user(),'facebook','post_by_default');
 266                 $checked = (($post_by_default) ? ' checked="checked" ' : '');
 267                 $o .= '<input type="checkbox" name="post_by_default" value="1"' . $checked . '/>' . ' ' . t('Post to Facebook by default') . EOL;
 268
 269                 $suppress_view_on_friendica = get_pconfig(local_user(),'facebook','suppress_view_on_friendica');
 270                 $checked = (($suppress_view_on_friendica) ? ' checked="checked" ' : '');
 271                 $o .= '<input type="checkbox" name="suppress_view_on_friendica" value="1"' . $checked . '/>' . ' ' . t('Suppress "View on friendica"') . EOL;
 272
 273                 $mirror_posts = get_pconfig(local_user(),'facebook','mirror_posts');
 274                 $checked = (($mirror_posts) ? ' checked="checked" ' : '');
 275                 $o .= '<input type="checkbox" name="mirror_posts" value="1"' . $checked . '/>' . ' ' . t('Mirror wall posts from facebook to friendica.') . EOL;
 276
 277                 // List all pages
 278                 $post_to_page = get_pconfig(local_user(),'facebook','post_to_page');
 279                 $page_access_token = get_pconfig(local_user(),'facebook','page_access_token');
 280                 $fb_token  = get_pconfig($a->user['uid'],'facebook','access_token');
 281                 //$url = 'https://graph.facebook.com/me/accounts';
 282                 //$x = fetch_url($url."?access_token=".$fb_token, false, $redirects, 10);
 283                 //$accounts = json_decode($x);
 284
 285                 $o .= t("Post to page/group:")."<select name='post_to_page'>";
 286                 if (intval($post_to_page) == 0)
 287                         $o .= "<option value='0-0' selected>".t('None')."</option>";
 288                 else
 289                         $o .= "<option value='0-0'>".t('None')."</option>";
 290
 291                 foreach($accounts->data as $account) {
 292                         if (is_array($account->perms))
 293                                 if ($post_to_page == $account->id)
 294                                         $o .= "<option value='".$account->id."-".$account->access_token."' selected>".$account->name."</option>";
 295                                 else
 296                                         $o .= "<option value='".$account->id."-".$account->access_token."'>".$account->name."</option>";
 297                 }
 298
 299                 $url = 'https://graph.facebook.com/me/groups';
 300                 $x = fetch_url($url."?access_token=".$fb_token, false, $redirects, 10);
 301                 $groups = json_decode($x);
 302
 303                 foreach($groups->data as $group) {
 304                         if ($post_to_page == $group->id)
 305                                 $o .= "<option value='".$group->id."-0' selected>".$group->name."</option>";
 306                         else
 307                                 $o .= "<option value='".$group->id."-0'>".$group->name."</option>";
 308                 }
 309
 310                 $o .= "</select>";
 311
 312                 if ($fbsync) {
 313
 314                         $o .= '<div class="clear"></div>';
 315
 316                         $sync_enabled = get_pconfig(local_user(),'fbsync','sync');
 317                         $checked = (($sync_enabled) ? ' checked="checked" ' : '');
 318                         $o .= '<input type="checkbox" name="fbsync" value="1"' . $checked . '/>' . ' ' . t('Import Facebook newsfeed.') . EOL;
 319
 320                         $create_user = get_pconfig(local_user(),'fbsync','create_user');
 321                         $checked = (($create_user) ? ' checked="checked" ' : '');
 322                         $o .= '<input type="checkbox" name="create_user" value="1"' . $checked . '/>' . ' ' . t('Automatically create contacts.') . EOL;
 323
 324                 }
 325                 $o .= '<p><input type="submit" name="submit" value="' . t('Save Settings') . '" /></form></div>';
 326         }
 327
 328         return $o;
 329 }
 330
 331 /**
 332  * @param App $a
 333  * @param null|object $b
 334  */
 335 function fbpost_plugin_settings(&$a,&$b) {
 336
 337         $enabled = get_pconfig(local_user(),'facebook','post');
 338         $css = (($enabled) ? '' : '-disabled');
 339
 340         $result = q("SELECT `installed` FROM `addon` WHERE `name` = 'fbsync' AND `installed`");
 341         if(count($result) > 0)
 342                 $title = t('Facebook Import/Export/Mirror');
 343         else
 344                 $title = t('Facebook Export/Mirror');
 345
 346         $b .= '<div class="settings-block">';
 347         $b .= '<a href="fbpost"><img class="connector'.$css.'" src="images/facebook.png" /><h3 class="connector">'.$title.'</h3></a>';
 348         $b .= '</div>';
 349 }
 350
 351
 352 /**
 353  * @param App $a
 354  * @param null|object $o
 355  */
 356 function fbpost_plugin_admin(&$a, &$o){
 357
 358
 359         $o = '<input type="hidden" name="form_security_token" value="' . get_form_security_token("fbsave") . '">';
 360
 361         $o .= '<h4>' . t('Facebook API Key') . '</h4>';
 362
 363         $appid  = get_config('facebook', 'appid'  );
 364         $appsecret = get_config('facebook', 'appsecret' );
 365
 366         $ret1 = q("SELECT `v` FROM `config` WHERE `cat` = 'facebook' AND `k` = 'appid' LIMIT 1");
 367         $ret2 = q("SELECT `v` FROM `config` WHERE `cat` = 'facebook' AND `k` = 'appsecret' LIMIT 1");
 368         if ((count($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>');
 369
 370         $o .= '<label for="fb_appid">' . t('App-ID / API-Key') . '</label><input id="fb_appid" name="appid" type="text" value="' . escape_tags($appid ? $appid : "") . '"><br style="clear: both;">';
 371         $o .= '<label for="fb_appsecret">' . t('Application secret') . '</label><input id="fb_appsecret" name="appsecret" type="text" value="' . escape_tags($appsecret ? $appsecret : "") . '"><br style="clear: both;">';
 372
 373         $o .= '<input type="submit" name="fb_save_keys" value="' . t('Save') . '">';
 374
 375 }
 376
 377 /**
 378  * @param App $a
 379  */
 380
 381 function fbpost_plugin_admin_post(&$a){
 382         check_form_security_token_redirectOnErr('/admin/plugins/fbpost', 'fbsave');
 383
 384         if (x($_REQUEST,'fb_save_keys')) {
 385                 set_config('facebook', 'appid', $_REQUEST['appid']);
 386                 set_config('facebook', 'appsecret', $_REQUEST['appsecret']);
 387
 388                 info(t('The new values have been saved.'));
 389         }
 390
 391 }
 392
 393 /**
 394  * @param App $a
 395  * @param object $b
 396  * @return mixed
 397  */
 398 function fbpost_jot_nets(&$a,&$b) {
 399         if(! local_user())
 400                 return;
 401
 402         $fb_post = get_pconfig(local_user(),'facebook','post');
 403         if(intval($fb_post) == 1) {
 404                 $fb_defpost = get_pconfig(local_user(),'facebook','post_by_default');
 405                 $selected = ((intval($fb_defpost) == 1) ? ' checked="checked" ' : '');
 406                 $b .= '<div class="profile-jot-net"><input type="checkbox" name="facebook_enable"' . $selected . ' value="1" /> '
 407                         . t('Post to Facebook') . '</div>';
 408         }
 409 }
 410
 411 function fbpost_createmsg($b) {
 412         require_once("include/bbcode.php");
 413         require_once("include/html2plain.php");
 414
 415         $b['body'] = bb_CleanPictureLinks($b['body']);
 416
 417         // Looking for the first image
 418         $image = '';
 419         if(preg_match("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/is",$b['body'],$matches))
 420                 $image = $matches[3];
 421
 422         if ($image == '')
 423                 if(preg_match("/\[img\](.*?)\[\/img\]/is",$b['body'],$matches))
 424                         $image = $matches[1];
 425
 426         $multipleimages = (strpos($b['body'], "[img") != strrpos($b['body'], "[img"));
 427
 428         // When saved into the database the content is sent through htmlspecialchars
 429         // That means that we have to decode all image-urls
 430         $image = htmlspecialchars_decode($image);
 431
 432         $body = $b["body"];
 433         if ($b["title"] != "")
 434                 $body = $b["title"]."\n\n".$body;
 435
 436         if (strpos($body, "[bookmark") !== false) {
 437                 // splitting the text in two parts:
 438                 // before and after the bookmark
 439                 $pos = strpos($body, "[bookmark");
 440                 $body1 = substr($body, 0, $pos);
 441                 $body2 = substr($body, $pos);
 442
 443                 // Removing all quotes after the bookmark
 444                 // they are mostly only the content after the bookmark.
 445                 $body2 = preg_replace("/\[quote\=([^\]]*)\](.*?)\[\/quote\]/ism",'',$body2);
 446                 $body2 = preg_replace("/\[quote\](.*?)\[\/quote\]/ism",'',$body2);
 447
 448                 $pos2 = strpos($body2, "[/bookmark]");
 449                 if ($pos2)
 450                         $body2 = substr($body2, $pos2 + 11);
 451
 452                 $body = $body1.$body2;
 453         }
 454
 455         // Add some newlines so that the message could be cut better
 456         $body = str_replace(array("[quote", "[bookmark", "[/bookmark]", "[/quote]"),
 457                                 array("\n[quote", "\n[bookmark", "[/bookmark]\n", "[/quote]\n"), $body);
 458
 459         // remove the recycle signs and the names since they aren't helpful on twitter
 460         // $recycle = html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8');
 461         // $body = preg_replace( '/'.$recycle.'\[url\=(\w+.*?)\](\w+.*?)\[\/url\]/i', "\n", $body);
 462
 463         // At first convert the text to html
 464         $html = bbcode($body, false, false, 2);
 465
 466         // Then convert it to plain text
 467         //$msg = trim($b['title']." \n\n".html2plain($html, 0, true));
 468         $msg = trim(html2plain($html, 0, true));
 469         $msg = html_entity_decode($msg,ENT_QUOTES,'UTF-8');
 470
 471         // Removing multiple newlines
 472         while (strpos($msg, "\n\n\n") !== false)
 473                 $msg = str_replace("\n\n\n", "\n\n", $msg);
 474
 475         // Removing multiple spaces
 476         while (strpos($msg, "  ") !== false)
 477                 $msg = str_replace("  ", " ", $msg);
 478
 479         // Removing URLs
 480         $msg = preg_replace('/(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/i', "", $msg);
 481
 482         $msg = trim($msg);
 483
 484         $link = '';
 485         $linkname = '';
 486         // look for bookmark-bbcode and handle it with priority
 487         if(preg_match("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/is",$b['body'],$matches)) {
 488                 $link = $matches[1];
 489                 $linkname = $matches[2];
 490         }
 491
 492         $multiplelinks = (strpos($b['body'], "[bookmark") != strrpos($b['body'], "[bookmark"));
 493
 494         if ($multiplelinks)
 495                 $linkname = '';
 496
 497         // If there is no bookmark element then take the first link
 498         if ($link == '') {
 499                 $links = collecturls($html);
 500                 if (sizeof($links) > 0) {
 501                         reset($links);
 502                         $link = current($links);
 503                 }
 504                 $multiplelinks = (sizeof($links) > 1);
 505         }
 506
 507         $msglink = "";
 508         if ($multiplelinks)
 509                 $msglink = $b["plink"];
 510         else if ($link != "")
 511                 $msglink = $link;
 512         else if ($multipleimages)
 513                 $msglink = $b["plink"];
 514         else if ($image != "")
 515                 $msglink = $image;
 516
 517         // Removing multiple spaces - again
 518         while (strpos($msg, "  ") !== false)
 519                 $msg = str_replace("  ", " ", $msg);
 520
 521         if ($msglink != "") {
 522                 // Looking if the link points to an image
 523                 $img_str = fetch_url($msglink);
 524
 525                 $tempfile = tempnam(get_config("system","temppath"), "cache");
 526                 file_put_contents($tempfile, $img_str);
 527                 $mime = image_type_to_mime_type(exif_imagetype($tempfile));
 528                 unlink($tempfile);
 529         } else
 530                 $mime = "";
 531
 532         if (($image == $msglink) OR (substr($mime, 0, 6) == "image/"))
 533                 return(array("msg"=>trim($msg), "link"=>"", "linkname"=>$linkname, "image"=>$msglink));
 534         else
 535                 return(array("msg"=>trim($msg), "link"=>$msglink, "linkname"=>$linkname,"image"=>$image));
 536 }
 537
 538 /**
 539  * @param App $a
 540  * @param object $b
 541  * @return mixed
 542  */
 543 function fbpost_post_hook(&$a,&$b) {
 544
 545         logger('fbpost_post_hook: Facebook post invoked', LOGGER_DEBUG);
 546
 547         if($b['deleted'] || ($b['created'] !== $b['edited']))
 548                 return;
 549
 550         logger('fbpost_post_hook: Facebook post first check successful', LOGGER_DEBUG);
 551
 552         // if post comes from facebook don't send it back
 553         if(($b['app'] == "Facebook") AND ($b['verb'] != ACTIVITY_LIKE))
 554                 return;
 555
 556         logger('fbpost_post_hook: Facebook post accepted', LOGGER_DEBUG);
 557
 558         /**
 559          * Post to Facebook stream
 560          */
 561
 562         require_once('include/group.php');
 563         require_once('include/html2plain.php');
 564
 565
 566         $reply = false;
 567         $likes = false;
 568
 569         $deny_arr = array();
 570         $allow_arr = array();
 571
 572         $toplevel = (($b['id'] == $b['parent']) ? true : false);
 573
 574
 575         $linking = ((get_pconfig($b['uid'],'facebook','no_linking')) ? 0 : 1);
 576
 577         if((!$toplevel) && ($linking)) {
 578                 $r = q("SELECT * FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1",
 579                         intval($b['parent']),
 580                         intval($b['uid'])
 581                 );
 582                 //$r = q("SELECT * FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 583                 //      dbesc($b['parent-uri']),
 584                 //      intval($b['uid'])
 585                 //);
 586
 587                 // is it a reply to a facebook post?
 588                 // A reply to a toplevel post is only allowed for "real" facebook posts
 589                 if(count($r) && substr($r[0]['uri'],0,4) === 'fb::')
 590                         $reply = substr($r[0]['uri'],4);
 591                 elseif(count($r) && (substr($r[0]['extid'],0,4) === 'fb::') AND ($r[0]['id'] != $r[0]['parent']))
 592                         $reply = substr($r[0]['extid'],4);
 593                 else
 594                         return;
 595
 596                 $u = q("SELECT * FROM user where uid = %d limit 1",
 597                         intval($b['uid'])
 598                 );
 599                 if(! count($u))
 600                         return;
 601
 602                 // only accept comments from the item owner. Other contacts are unknown to FB.
 603
 604                 if(! link_compare($b['author-link'], $a->get_baseurl() . '/profile/' . $u[0]['nickname']))
 605                         return;
 606
 607
 608                 logger('fbpost_post_hook: facebook reply id=' . $reply);
 609         }
 610
 611         if(strstr($b['postopts'],'facebook') || ($b['private']) || ($reply)) {
 612
 613                 if($b['private'] && $reply === false) {
 614                         $allow_people = expand_acl($b['allow_cid']);
 615                         $allow_groups = expand_groups(expand_acl($b['allow_gid']));
 616                         $deny_people  = expand_acl($b['deny_cid']);
 617                         $deny_groups  = expand_groups(expand_acl($b['deny_gid']));
 618
 619                         $recipients = array_unique(array_merge($allow_people,$allow_groups));
 620                         $deny = array_unique(array_merge($deny_people,$deny_groups));
 621
 622                         $allow_str = dbesc(implode(', ',$recipients));
 623                         if($allow_str) {
 624                                 logger("fbpost_post_hook: private post to: ".$allow_str, LOGGER_DEBUG);
 625                                 $r = q("SELECT `notify` FROM `contact` WHERE `id` IN ( $allow_str ) AND `network` = 'face'");
 626                                 if(count($r))
 627                                         foreach($r as $rr)
 628                                                 $allow_arr[] = $rr['notify'];
 629                         }
 630
 631                         $deny_str = dbesc(implode(', ',$deny));
 632                         if($deny_str) {
 633                                 $r = q("SELECT `notify` FROM `contact` WHERE `id` IN ( $deny_str ) AND `network` = 'face'");
 634                                 if(count($r))
 635                                         foreach($r as $rr)
 636                                                 $deny_arr[] = $rr['notify'];
 637                         }
 638
 639                         if(count($deny_arr) && (! count($allow_arr))) {
 640
 641                                 // One or more FB folks were denied access but nobody on FB was specifically allowed access.
 642                                 // This might cause the post to be open to public on Facebook, but only to selected members
 643                                 // on another network. Since this could potentially leak a post to somebody who was denied,
 644                                 // we will skip posting it to Facebook with a slightly vague but relevant message that will
 645                                 // hopefully lead somebody to this code comment for a better explanation of what went wrong.
 646
 647                                 notice( t('Post to Facebook cancelled because of multi-network access permission conflict.') . EOL);
 648                                 return;
 649                         }
 650
 651
 652                         // if it's a private message but no Facebook members are allowed or denied, skip Facebook post
 653
 654                         if((! count($allow_arr)) && (! count($deny_arr)))
 655                                 return;
 656                 }
 657
 658                 if($b['verb'] == ACTIVITY_LIKE) {
 659                         $likes = true;
 660                         logger('fbpost_post_hook: liking '.print_r($b, true), LOGGER_DEBUG);
 661                 }
 662
 663
 664                 $appid  = get_config('facebook', 'appid'  );
 665                 $secret = get_config('facebook', 'appsecret' );
 666
 667                 if($appid && $secret) {
 668
 669                         logger('fbpost_post_hook: have appid+secret');
 670
 671                         $fb_token  = get_pconfig($b['uid'],'facebook','access_token');
 672
 673
 674                         // post to facebook if it's a public post and we've ticked the 'post to Facebook' box,
 675                         // or it's a private message with facebook participants
 676                         // or it's a reply or likes action to an existing facebook post
 677
 678                         if($fb_token && ($toplevel || $b['private'] || $reply)) {
 679                                 logger('fbpost_post_hook: able to post');
 680                                 require_once('library/facebook.php');
 681                                 require_once('include/bbcode.php');
 682
 683                                 $msg = $b['body'];
 684
 685                                 logger('fbpost_post_hook: original msg=' . $msg, LOGGER_DATA);
 686
 687                                 if ($toplevel) {
 688                                         $msgarr = fbpost_createmsg($b);
 689                                         $msg = $msgarr["msg"];
 690                                         $link = $msgarr["link"];
 691                                         $image = $msgarr["image"];
 692                                         $linkname = $msgarr["linkname"];
 693
 694                                         // Fallback - if message is empty
 695                                         if(!strlen($msg))
 696                                                 $msg = $linkname;
 697
 698                                         if(!strlen($msg))
 699                                                 $msg = $link;
 700
 701                                         if(!strlen($msg))
 702                                                 $msg = $image;
 703                                 } else {
 704                                         require_once("include/bbcode.php");
 705                                         require_once("include/html2plain.php");
 706                                         $msg = bb_CleanPictureLinks($msg);
 707                                         $msg = bbcode($msg, false, false, 2, true);
 708                                         $msg = trim(html2plain($msg, 0));
 709                                         $link = "";
 710                                         $image = "";
 711                                         $linkname = "";
 712                                 }
 713
 714                                 // If there is nothing to post then exit
 715                                 if(!strlen($msg))
 716                                         return;
 717
 718                                 logger('fbpost_post_hook: msg=' . $msg, LOGGER_DATA);
 719
 720                                 $video = "";
 721
 722                                 if($likes) {
 723                                         $postvars = array('access_token' => $fb_token);
 724                                 } else {
 725                                         // message, picture, link, name, caption, description, source, place, tags
 726                                         //if(trim($link) != "")
 727                                         //      if (@exif_imagetype($link) != 0) {
 728                                         //              $image = $link;
 729                                         //              $link = "";
 730                                         //      }
 731
 732                                         $postvars = array(
 733                                                 'access_token' => $fb_token,
 734                                                 'message' => $msg
 735                                         );
 736                                         if(trim($image) != "")
 737                                                 $postvars['picture'] = $image;
 738
 739                                         if(trim($link) != "") {
 740                                                 $postvars['link'] = $link;
 741
 742                                                 if ((stristr($link,'youtube')) || (stristr($link,'youtu.be')) || (stristr($link,'vimeo'))) {
 743                                                         $video = $link;
 744                                                 }
 745                                         }
 746                                         if(trim($linkname) != "")
 747                                                 $postvars['name'] = $linkname;
 748                                 }
 749
 750                                 if(($b['private']) && ($toplevel)) {
 751                                         $postvars['privacy'] = '{"value": "CUSTOM", "friends": "SOME_FRIENDS"';
 752                                         if(count($allow_arr))
 753                                                 $postvars['privacy'] .= ',"allow": "' . implode(',',$allow_arr) . '"';
 754                                         if(count($deny_arr))
 755                                                 $postvars['privacy'] .= ',"deny": "' . implode(',',$deny_arr) . '"';
 756                                         $postvars['privacy'] .= '}';
 757
 758                                 }
 759
 760                                 $post_to_page = get_pconfig($b['uid'],'facebook','post_to_page');
 761                                 $page_access_token = get_pconfig($b['uid'],'facebook','page_access_token');
 762                                 if ((intval($post_to_page) != 0) and ($page_access_token != ""))
 763                                         $target = $post_to_page;
 764                                 else
 765                                         $target = "me";
 766
 767                                 if($reply) {
 768                                         $url = 'https://graph.facebook.com/' . $reply . '/' . (($likes) ? 'likes' : 'comments');
 769                                 } else if (($video != "") or (($image == "") and ($link != ""))) {
 770                                         // If it is a link to a video or a link without a preview picture then post it as a link
 771                                         if ($video != "")
 772                                                 $link = $video;
 773
 774                                         $postvars = array(
 775                                                 'access_token' => $fb_token,
 776                                                 'link' => $link,
 777                                         );
 778                                         if ($msg != $video)
 779                                                 $postvars['message'] = $msg;
 780
 781                                         $url = 'https://graph.facebook.com/'.$target.'/links';
 782                                 } else if (($link == "") and ($image != "")) {
 783                                         // If it is only an image without a page link then post this image as a photo
 784                                         $postvars = array(
 785                                                 'access_token' => $fb_token,
 786                                                 'url' => $image,
 787                                         );
 788                                         if ($msg != $image)
 789                                                 $postvars['message'] = $msg;
 790
 791                                         $url = 'https://graph.facebook.com/'.$target.'/photos';
 792                                 } else if (($link != "") or ($image != "") or ($b['title'] == '') or (strlen($msg) < 500)) {
 793                                         $url = 'https://graph.facebook.com/'.$target.'/feed';
 794                                         if (!get_pconfig($b['uid'],'facebook','suppress_view_on_friendica') and $b['plink'])
 795                                                 $postvars['actions'] = '{"name": "' . t('View on Friendica') . '", "link": "' .  $b['plink'] . '"}';
 796                                 } else {
 797                                         // if its only a message and a subject and the message is larger than 500 characters then post it as note
 798                                         $postvars = array(
 799                                                 'access_token' => $fb_token,
 800                                                 'message' => bbcode($b['body'], false, false),
 801                                                 'subject' => $b['title'],
 802                                         );
 803                                         $url = 'https://graph.facebook.com/'.$target.'/notes';
 804                                 }
 805
 806                                 // Post to page?
 807                                 if (!$reply and ($target != "me") and $page_access_token)
 808                                         $postvars['access_token'] = $page_access_token;
 809
 810                                 logger('fbpost_post_hook: post to ' . $url);
 811                                 logger('fbpost_post_hook: postvars: ' . print_r($postvars,true));
 812
 813                                 // "test_mode" prevents anything from actually being posted.
 814                                 // Otherwise, let's do it.
 815
 816                                 if(!get_config('facebook','test_mode')) {
 817                                         $x = post_url($url, $postvars);
 818                                         logger('fbpost_post_hook: post returns: ' . $x, LOGGER_DEBUG);
 819
 820                                         $retj = json_decode($x);
 821                                         if($retj->id) {
 822                                                 // Only set the extid when it isn't the toplevel post
 823                                                 q("UPDATE `item` SET `extid` = '%s' WHERE `id` = %d AND `parent` != %d",
 824                                                         dbesc('fb::' . $retj->id),
 825                                                         intval($b['id']),
 826                                                         intval($b['id'])
 827                                                 );
 828                                         } else {
 829                                                 // Sometimes posts are accepted from facebook although it telling an error
 830                                                 // This leads to endless comment flooding.
 831
 832                                                 // If it is a special kind of failure the post was receiced
 833                                                 // Although facebook said it wasn't received ...
 834                                                 if (!$likes AND (($retj->error->type != "OAuthException") OR ($retj->error->code != 2)) AND ($x <> "")) {
 835                                                         $r = q("SELECT `id` FROM `contact` WHERE `uid` = %d AND `self`", intval($b['uid']));
 836                                                         if (count($r))
 837                                                                 $a->contact = $r[0]["id"];
 838
 839                                                         $s = serialize(array('url' => $url, 'item' => $b['id'], 'post' => $postvars));
 840                                                         require_once('include/queue_fn.php');
 841                                                         add_to_queue($a->contact,NETWORK_FACEBOOK,$s);
 842                                                         logger('fbpost_post_hook: Post failed, requeued.', LOGGER_DEBUG);
 843                                                         notice( t('Facebook post failed. Queued for retry.') . EOL);
 844                                                 }
 845
 846                                                 if (isset($retj->error) && $retj->error->type == "OAuthException" && $retj->error->code == 190) {
 847                                                         logger('fbpost_post_hook: Facebook session has expired due to changed password.', LOGGER_DEBUG);
 848
 849                                                         $last_notification = get_pconfig($b['uid'], 'facebook', 'session_expired_mailsent');
 850                                                         if (!$last_notification || $last_notification < (time() - FACEBOOK_SESSION_ERR_NOTIFICATION_INTERVAL)) {
 851                                                                 require_once('include/enotify.php');
 852
 853                                                                 $r = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1", intval($b['uid']));
 854                                                                 notification(array(
 855                                                                         'uid' => $b['uid'],
 856                                                                         'type' => NOTIFY_SYSTEM,
 857                                                                         'system_type' => 'facebook_connection_invalid',
 858                                                                         'language'     => $r[0]['language'],
 859                                                                         'to_name'      => $r[0]['username'],
 860                                                                         'to_email'     => $r[0]['email'],
 861                                                                         'source_name'  => t('Administrator'),
 862                                                                         'source_link'  => $a->config["system"]["url"],
 863                                                                         'source_photo' => $a->config["system"]["url"] . '/images/person-80.jpg',
 864                                                                 ));
 865
 866                                                                 set_pconfig($b['uid'], 'facebook', 'session_expired_mailsent', time());
 867                                                         } else logger('fbpost_post_hook: No notification, as the last one was sent on ' . $last_notification, LOGGER_DEBUG);
 868                                                 }
 869                                         }
 870                                 }
 871                         }
 872                 }
 873         }
 874 }
 875
 876 /**
 877  * @param App $app
 878  * @param object $data
 879  */
 880 function fbpost_enotify(&$app, &$data) {
 881         if (x($data, 'params') && $data['params']['type'] == NOTIFY_SYSTEM && x($data['params'], 'system_type') && $data['params']['system_type'] == 'facebook_connection_invalid') {
 882                 $data['itemlink'] = '/fbpost';
 883                 $data['epreamble'] = $data['preamble'] = t('Your Facebook connection became invalid. Please Re-authenticate.');
 884                 $data['subject'] = t('Facebook connection became invalid');
 885                 $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"] . "/fbpost]", "[/url]");
 886         }
 887 }
 888
 889 /**
 890  * @param App $a
 891  * @param object $b
 892  */
 893 function fbpost_post_local(&$a,&$b) {
 894
 895         // Figure out if Facebook posting is enabled for this post and file it in 'postopts'
 896         // where we will discover it during background delivery.
 897
 898         // This can only be triggered by a local user posting to their own wall.
 899
 900         if((local_user()) && (local_user() == $b['uid'])) {
 901
 902                 $fb_post   = intval(get_pconfig(local_user(),'facebook','post'));
 903                 $fb_enable = (($fb_post && x($_REQUEST,'facebook_enable')) ? intval($_REQUEST['facebook_enable']) : 0);
 904
 905                 // if API is used, default to the chosen settings
 906                 // but allow a specific override
 907
 908                 if($_REQUEST['api_source'] && intval(get_pconfig(local_user(),'facebook','post_by_default'))) {
 909                         if(! x($_REQUEST,'facebook_enable'))
 910                                 $fb_enable = 1;
 911                 }
 912
 913                 if(! $fb_enable)
 914                         return;
 915
 916                 if(strlen($b['postopts']))
 917                         $b['postopts'] .= ',';
 918                 $b['postopts'] .= 'facebook';
 919         }
 920 }
 921
 922
 923 /**
 924  * @param App $a
 925  * @param object $b
 926  */
 927 function fbpost_queue_hook(&$a,&$b) {
 928
 929         $qi = q("SELECT * FROM `queue` WHERE `network` = '%s'",
 930                 dbesc(NETWORK_FACEBOOK)
 931         );
 932         if(! count($qi))
 933                 return;
 934
 935         require_once('include/queue_fn.php');
 936
 937         foreach($qi as $x) {
 938                 if($x['network'] !== NETWORK_FACEBOOK)
 939                         continue;
 940
 941                 logger('fbpost_queue_hook: run');
 942
 943                 $r = q("SELECT `user`.* FROM `user` LEFT JOIN `contact` on `contact`.`uid` = `user`.`uid`
 944                         WHERE `contact`.`self` = 1 AND `contact`.`id` = %d LIMIT 1",
 945                         intval($x['cid'])
 946                 );
 947                 if(! count($r)) {
 948                         logger('fbpost_queue_hook: no user found for entry '.print_r($x, true));
 949                         update_queue_time($x['id']);
 950                         continue;
 951                 }
 952
 953                 $user = $r[0];
 954
 955                 $appid  = get_config('facebook', 'appid'  );
 956                 $secret = get_config('facebook', 'appsecret' );
 957
 958                 if($appid && $secret) {
 959                         $fb_post   = intval(get_pconfig($user['uid'],'facebook','post'));
 960                         $fb_token  = get_pconfig($user['uid'],'facebook','access_token');
 961
 962                         if($fb_post && $fb_token) {
 963                                 logger('fbpost_queue_hook: able to post');
 964                                 require_once('library/facebook.php');
 965
 966                                 $z = unserialize($x['content']);
 967                                 $item = $z['item'];
 968                                 $j = post_url($z['url'],$z['post']);
 969
 970                                 $retj = json_decode($j);
 971                                 if($retj->id) {
 972                                         // Only set the extid when it isn't the toplevel post
 973                                         q("UPDATE `item` SET `extid` = '%s' WHERE `id` = %d AND `parent` != %d",
 974                                                 dbesc('fb::' . $retj->id),
 975                                                 intval($item),
 976                                                 intval($item)
 977                                         );
 978                                         logger('fbpost_queue_hook: success: ' . $j);
 979                                         remove_queue_item($x['id']);
 980                                 } else {
 981                                         logger('fbpost_queue_hook: failed: ' . $j);
 982
 983                                         // If it is a special kind of failure the post was receiced
 984                                         // Although facebook said it wasn't received ...
 985                                         $ret = json_decode($j);
 986                                         if (($ret->error->type != "OAuthException") OR ($ret->error->code != 2) AND ($j <> ""))
 987                                                 update_queue_time($x['id']);
 988                                         else
 989                                                 logger('fbpost_queue_hook: Not requeued, since it seems to be received');
 990                                 }
 991                         } else {
 992                                 logger('fbpost_queue_hook: No fb_post or fb_token.');
 993                                 update_queue_time($x['id']);
 994                         }
 995                 } else {
 996                         logger('fbpost_queue_hook: No appid or secret.');
 997                         update_queue_time($x['id']);
 998                 }
 999         }
1000 }
1001
1002
1003 /**
1004  * @return bool|string
1005  */
1006 function fbpost_get_app_access_token() {
1007
1008         $acc_token = get_config('facebook','app_access_token');
1009
1010         if ($acc_token !== false) return $acc_token;
1011
1012         $appid = get_config('facebook','appid');
1013         $appsecret = get_config('facebook', 'appsecret');
1014
1015         if ($appid === false || $appsecret === false) {
1016                 logger('fb_get_app_access_token: appid and/or appsecret not set', LOGGER_DEBUG);
1017                 return false;
1018         }
1019         logger('https://graph.facebook.com/oauth/access_token?client_id=' . $appid . '&client_secret=' . $appsecret . '&grant_type=client_credentials', LOGGER_DATA);
1020         $x = fetch_url('https://graph.facebook.com/oauth/access_token?client_id=' . $appid . '&client_secret=' . $appsecret . '&grant_type=client_credentials');
1021
1022         if(strpos($x,'access_token=') !== false) {
1023                 logger('fb_get_app_access_token: returned access token: ' . $x, LOGGER_DATA);
1024
1025                 $token = str_replace('access_token=', '', $x);
1026                 if(strpos($token,'&') !== false)
1027                         $token = substr($token,0,strpos($token,'&'));
1028
1029                 if ($token == "") {
1030                         logger('fb_get_app_access_token: empty token: ' . $x, LOGGER_DEBUG);
1031                         return false;
1032                 }
1033                 set_config('facebook','app_access_token',$token);
1034                 return $token;
1035         } else {
1036                 logger('fb_get_app_access_token: response did not contain an access_token: ' . $x, LOGGER_DATA);
1037                 return false;
1038         }
1039 }
1040
1041 function fbpost_cron($a,$b) {
1042         $last = get_config('facebook','last_poll');
1043
1044         $poll_interval = intval(get_config('facebook','poll_interval'));
1045         if(! $poll_interval)
1046                 $poll_interval = FACEBOOK_DEFAULT_POLL_INTERVAL;
1047
1048         if($last) {
1049                 $next = $last + ($poll_interval * 60);
1050                 if($next > time()) {
1051                         logger('facebook: poll intervall not reached');
1052                         return;
1053                 }
1054         }
1055         logger('facebook: cron_start');
1056
1057         $r = q("SELECT * FROM `pconfig` WHERE `cat` = 'facebook' AND `k` = 'mirror_posts' AND `v` = '1' ORDER BY RAND() ");
1058         if(count($r)) {
1059                 foreach($r as $rr) {
1060                         logger('facebook: fetching for user '.$rr['uid']);
1061                         fbpost_fetchwall($a, $rr['uid']);
1062                 }
1063         }
1064
1065         logger('facebook: cron_end');
1066
1067         set_config('facebook','last_poll', time());
1068 }
1069
1070 function fbpost_fetchwall($a, $uid) {
1071         require_once("include/oembed.php");
1072
1073         $access_token = get_pconfig($uid,'facebook','access_token');
1074         $post_to_page = get_pconfig($uid,'facebook','post_to_page');
1075         $lastcreated = get_pconfig($uid,'facebook','last_created');
1076
1077         if ((int)$post_to_page == 0)
1078                 $post_to_page = "me";
1079
1080         $url = "https://graph.facebook.com/".$post_to_page."/feed?access_token=".$access_token;
1081
1082         $first_time = ($lastcreated == "");
1083
1084         if ($lastcreated != "")
1085                 $url .= "&since=".urlencode($lastcreated);
1086
1087         $feed = fetch_url($url);
1088         $data = json_decode($feed);
1089
1090         if (!is_array($data->data))
1091                 return;
1092
1093         $items = array_reverse($data->data);
1094
1095         foreach ($items as $item) {
1096                 if ($item->created_time > $lastcreated)
1097                         $lastcreated = $item->created_time;
1098
1099                 if ($first_time)
1100                         continue;
1101
1102                 if ($item->application->id == get_config('facebook','appid'))
1103                         continue;
1104
1105                 if(isset($item->privacy) && ($item->privacy->value !== 'EVERYONE') && ($item->privacy->value !== ''))
1106                         continue;
1107
1108                 if (($post_to_page != $item->from->id) AND ((int)$post_to_page != 0))
1109                         continue;
1110
1111                 if (!strstr($item->id, $item->from->id."_") AND isset($item->to) AND ((int)$post_to_page == 0))
1112                         continue;
1113
1114                 $_SESSION["authenticated"] = true;
1115                 $_SESSION["uid"] = $uid;
1116
1117                 unset($_REQUEST);
1118                 $_REQUEST["type"] = "wall";
1119                 $_REQUEST["api_source"] = true;
1120                 $_REQUEST["profile_uid"] = $uid;
1121                 $_REQUEST["source"] = "Facebook";
1122
1123                 $_REQUEST["title"] = "";
1124
1125                 $_REQUEST["body"] = (isset($item->message) ? escape_tags($item->message) : '');
1126
1127                 $content = "";
1128                 $type = "";
1129
1130                 if(isset($item->name) and isset($item->link)) {
1131                         $oembed_data = oembed_fetch_url($item->link);
1132                         $type = $oembed_data->type;
1133                         $content = "[bookmark=".$item->link."]".$item->name."[/bookmark]";
1134                 } elseif (isset($item->name))
1135                         $content .= "[b]".$item->name."[/b]";
1136
1137                 $quote = "";
1138                 if(isset($item->description) and ($item->type != "photo"))
1139                         $quote = $item->description;
1140
1141                 if(isset($item->caption) and ($item->type == "photo"))
1142                         $quote = $item->caption;
1143
1144                 // Only import the picture when the message is no video
1145                 // oembed display a picture of the video as well
1146                 //if ($item->type != "video") {
1147                 //if (($item->type != "video") and ($item->type != "photo")) {
1148                 if (($type == "") OR ($type == "link")) {
1149
1150                         $type = $item->type;
1151
1152                         if(isset($item->picture) && isset($item->link))
1153                                 $content .= "\n".'[url='.$item->link.'][img]'.fpost_cleanpicture($item->picture).'[/img][/url]';
1154                         else {
1155                                 if (isset($item->picture))
1156                                         $content .= "\n".'[img]'.fpost_cleanpicture($item->picture).'[/img]';
1157                                 // if just a link, it may be a wall photo - check
1158                                 if(isset($item->link))
1159                                         $content .= fbpost_get_photo($uid,$item->link);
1160                         }
1161                 }
1162
1163                 if(trim($_REQUEST["body"].$content.$quote) == '') {
1164                         logger('facebook: empty body '.$item->id.' '.print_r($item, true));
1165                         continue;
1166                 }
1167
1168                 if ($content)
1169                         $_REQUEST["body"] .= "\n";
1170
1171                 if ($type)
1172                         $_REQUEST["body"] .= "[class=type-".$type."]";
1173
1174                 if ($content)
1175                         $_REQUEST["body"] .= trim($content);
1176
1177                 if ($quote)
1178                         $_REQUEST["body"] .= "\n[quote]".$quote."[/quote]";
1179
1180                 if ($type)
1181                         $_REQUEST["body"] .= "[/class]";
1182
1183                 $_REQUEST["body"] = trim($_REQUEST["body"]);
1184
1185                 if (isset($item->place)) {
1186                         if ($item->place->name or $item->place->location->street or
1187                                 $item->place->location->city or $item->place->location->country) {
1188                                 $_REQUEST["location"] = '';
1189                                 if ($item->place->name)
1190                                         $_REQUEST["location"] .= $item->place->name;
1191                                 if ($item->place->location->street)
1192                                         $_REQUEST["location"] .= " ".$item->place->location->street;
1193                                 if ($item->place->location->city)
1194                                         $_REQUEST["location"] .= " ".$item->place->location->city;
1195                                 if ($item->place->location->country)
1196                                         $_REQUEST["location"] .= " ".$item->place->location->country;
1197
1198                                 $_REQUEST["location"] = trim($_REQUEST["location"]);
1199                         }
1200                         if ($item->place->location->latitude and $item->place->location->longitude)
1201                                 $_REQUEST["coord"] = substr($item->place->location->latitude, 0, 8)
1202                                                 .' '.substr($item->place->location->longitude, 0, 8);
1203                 }
1204
1205                 //print_r($_REQUEST);
1206                 logger('facebook: posting for user '.$uid);
1207
1208                 require_once('mod/item.php');
1209                 item_post($a);
1210         }
1211
1212         set_pconfig($uid,'facebook','last_created', $lastcreated);
1213 }
1214
1215 function fbpost_get_photo($uid,$link) {
1216         $access_token = get_pconfig($uid,'facebook','access_token');
1217         if(! $access_token || (! stristr($link,'facebook.com/photo.php')))
1218                 return "";
1219
1220         $ret = preg_match('/fbid=([0-9]*)/',$link,$match);
1221         if($ret)
1222                 $photo_id = $match[1];
1223         else
1224                 return "";
1225
1226         $x = fetch_url('https://graph.facebook.com/'.$photo_id.'?access_token='.$access_token);
1227         $j = json_decode($x);
1228         if($j->picture)
1229                 return "\n\n".'[url='.$link.'][img]'.fpost_cleanpicture($j->picture).'[/img][/url]';
1230
1231         return "";
1232 }
1233
1234 function fpost_cleanpicture($image) {
1235
1236         if ((strpos($image, ".fbcdn.net/") OR strpos($image, "/fbcdn-photos-")) and (substr($image, -6) == "_s.jpg"))
1237                 $image = substr($image, 0, -6)."_n.jpg";
1238
1239         $queryvar = fbpost_parse_query($image);
1240         if ($queryvar['url'] != "")
1241                 $image = urldecode($queryvar['url']);
1242
1243         return $image;
1244 }
1245
1246 function fbpost_parse_query($var) {
1247         /**
1248          *  Use this function to parse out the query array element from
1249          *  the output of parse_url().
1250         */
1251         $var  = parse_url($var, PHP_URL_QUERY);
1252         $var  = html_entity_decode($var);
1253         $var  = explode('&', $var);
1254         $arr  = array();
1255
1256         foreach($var as $val) {
1257                 $x          = explode('=', $val);
1258                 $arr[$x[0]] = $x[1];
1259         }
1260
1261         unset($val, $x, $var);
1262         return $arr;
1263 }