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