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  * Status: Unsupported
   8  *
   9  */
  10
  11 /**
  12  * Installing the Friendica/Facebook connector
  13  *
  14  * Detailed instructions how to use this plugin can be found at
  15  * https://github.com/friendica/friendica/wiki/How-to:-Friendica%E2%80%99s-Facebook-connector
  16  *
  17  * Vidoes and embeds will not be posted if there is no other content. Links
  18  * and images will be converted to a format suitable for the Facebook API and
  19  * long posts truncated - with a link to view the full post.
  20  *
  21  * Facebook contacts will not be able to view private photos, as they are not able to
  22  * authenticate to your site to establish identity. We will address this
  23  * in a future release.
  24  */
  25
  26 define('FACEBOOK_DEFAULT_POLL_INTERVAL', 5); // given in minutes
  27
  28 require_once('include/security.php');
  29
  30 function fbpost_install() {
  31         register_hook('post_local',       'addon/fbpost/fbpost.php', 'fbpost_post_local');
  32         register_hook('notifier_normal',  'addon/fbpost/fbpost.php', 'fbpost_post_hook');
  33         register_hook('jot_networks',     'addon/fbpost/fbpost.php', 'fbpost_jot_nets');
  34         register_hook('connector_settings',  'addon/fbpost/fbpost.php', 'fbpost_plugin_settings');
  35         register_hook('enotify',          'addon/fbpost/fbpost.php', 'fbpost_enotify');
  36         register_hook('queue_predeliver', 'addon/fbpost/fbpost.php', 'fbpost_queue_hook');
  37         register_hook('cron',             'addon/fbpost/fbpost.php', 'fbpost_cron');
  38         register_hook('prepare_body',     'addon/fbpost/fbpost.php', 'fbpost_prepare_body');
  39 }
  40
  41
  42 function fbpost_uninstall() {
  43         unregister_hook('post_local',       'addon/fbpost/fbpost.php', 'fbpost_post_local');
  44         unregister_hook('notifier_normal',  'addon/fbpost/fbpost.php', 'fbpost_post_hook');
  45         unregister_hook('jot_networks',     'addon/fbpost/fbpost.php', 'fbpost_jot_nets');
  46         unregister_hook('connector_settings',  'addon/fbpost/fbpost.php', 'fbpost_plugin_settings');
  47         unregister_hook('enotify',          'addon/fbpost/fbpost.php', 'fbpost_enotify');
  48         unregister_hook('queue_predeliver', 'addon/fbpost/fbpost.php', 'fbpost_queue_hook');
  49         unregister_hook('cron',             'addon/fbpost/fbpost.php', 'fbpost_cron');
  50         unregister_hook('prepare_body',     'addon/fbpost/fbpost.php', 'fbpost_prepare_body');
  51 }
  52
  53
  54 /* declare the fbpost_module function so that /fbpost url requests will land here */
  55
  56 function fbpost_module() {}
  57
  58
  59
  60 // If a->argv[1] is a nickname, this is a callback from Facebook oauth requests.
  61 // If $_REQUEST["realtime_cb"] is set, this is a callback from the Real-Time Updates API
  62
  63 /**
  64  * @param App $a
  65  */
  66 function fbpost_init(&$a) {
  67
  68         if($a->argc != 2)
  69                 return;
  70
  71         $nick = $a->argv[1];
  72
  73         if(strlen($nick))
  74                 $r = q("SELECT `uid` FROM `user` WHERE `nickname` = '%s' LIMIT 1",
  75                         dbesc($nick)
  76                 );
  77         if(!(isset($r) && count($r)))
  78                 return;
  79
  80         $uid           = $r[0]['uid'];
  81         $auth_code     = (x($_GET, 'code') ? $_GET['code'] : '');
  82         $error         = (x($_GET, 'error_description') ? $_GET['error_description'] : '');
  83
  84
  85         if($error)
  86                 logger('fbpost_init: Error: ' . $error);
  87
  88         if($auth_code && $uid) {
  89
  90                 $appid = get_config('facebook','appid');
  91                 $appsecret = get_config('facebook', 'appsecret');
  92
  93                 $x = fetch_url('https://graph.facebook.com/oauth/access_token?client_id='
  94                         . $appid . '&client_secret=' . $appsecret . '&redirect_uri='
  95                         . urlencode($a->get_baseurl() . '/fbpost/' . $nick)
  96                         . '&code=' . $auth_code);
  97
  98                 logger('fbpost_init: returned access token: ' . $x, LOGGER_DATA);
  99
 100                 if(strpos($x,'access_token=') !== false) {
 101                         $token = str_replace('access_token=', '', $x);
 102                         if(strpos($token,'&') !== false)
 103                                 $token = substr($token,0,strpos($token,'&'));
 104                         set_pconfig($uid,'facebook','access_token',$token);
 105                         set_pconfig($uid,'facebook','post','1');
 106                         fbpost_get_self($uid);
 107                 }
 108
 109         }
 110
 111 }
 112
 113
 114 /**
 115  * @param int $uid
 116  */
 117 function fbpost_get_self($uid) {
 118         $access_token = get_pconfig($uid,'facebook','access_token');
 119         if(! $access_token)
 120                 return;
 121         $s = fetch_url('https://graph.facebook.com/me/?access_token=' . $access_token);
 122         if($s) {
 123                 $j = json_decode($s);
 124                 set_pconfig($uid,'facebook','self_id',(string) $j->id);
 125         }
 126 }
 127
 128
 129 // This is the POST method to the facebook settings page
 130 // Content is posted to Facebook in the function facebook_post_hook()
 131
 132 /**
 133  * @param App $a
 134  */
 135 function fbpost_post(&$a) {
 136
 137         $uid = local_user();
 138         if($uid){
 139
 140                 $value = ((x($_POST,'post_by_default')) ? intval($_POST['post_by_default']) : 0);
 141                 set_pconfig($uid,'facebook','post_by_default', $value);
 142
 143                 $value = ((x($_POST,'mirror_posts')) ? intval($_POST['mirror_posts']) : 0);
 144                 set_pconfig($uid,'facebook','mirror_posts', $value);
 145
 146                 if (!$value)
 147                         del_pconfig($uid,'facebook','last_created');
 148
 149                 $value = ((x($_POST,'suppress_view_on_friendica')) ? intval($_POST['suppress_view_on_friendica']) : 0);
 150                 set_pconfig($uid,'facebook','suppress_view_on_friendica', $value);
 151
 152                 $value = ((x($_POST,'post_to_page')) ? $_POST['post_to_page'] : "0-0");
 153                 $values = explode("-", $value);
 154                 set_pconfig($uid,'facebook','post_to_page', $values[0]);
 155                 set_pconfig($uid,'facebook','page_access_token', $values[1]);
 156
 157                 $result = q("SELECT `installed` FROM `addon` WHERE `name` = 'fbsync' AND `installed`");
 158                 if (count($result) > 0) {
 159                         set_pconfig(local_user(),'fbsync','sync',intval($_POST['fbsync']));
 160                         set_pconfig(local_user(),'fbsync','create_user',intval($_POST['create_user']));
 161                 }
 162
 163                 info( t('Settings updated.') . EOL);
 164         }
 165
 166         return;
 167 }
 168
 169 // Facebook settings form
 170
 171 /**
 172  * @param App $a
 173  * @return string
 174  */
 175 function fbpost_content(&$a) {
 176
 177         if(! local_user()) {
 178                 notice( t('Permission denied.') . EOL);
 179                 return '';
 180         }
 181
 182
 183         if(! service_class_allows(local_user(),'facebook_connect')) {
 184                 notice( t('Permission denied.') . EOL);
 185                 return upgrade_bool_message();
 186         }
 187
 188
 189         if($a->argc > 1 && $a->argv[1] === 'remove') {
 190                 del_pconfig(local_user(),'facebook','post');
 191                 info( t('Facebook Post disabled') . EOL);
 192         }
 193
 194         require_once("mod/settings.php");
 195         settings_init($a);
 196
 197         $o = '';
 198         $accounts = array();
 199
 200         $fb_installed = false;
 201         if (get_pconfig(local_user(),'facebook','post')) {
 202                 $access_token = get_pconfig(local_user(),'facebook','access_token');
 203                 if ($access_token) {
 204                         // fetching the list of accounts to check, if facebook is working
 205                         // The value is needed several lines below.
 206                         $url = 'https://graph.facebook.com/me/accounts';
 207                         $s = fetch_url($url."?access_token=".$access_token, false, $redirects, 10);
 208                         if($s) {
 209                                 $accounts = json_decode($s);
 210                                 if (isset($accounts->data))
 211                                         $fb_installed = true;
 212                         }
 213
 214                         // I'm not totally sure, if this above will work in every situation,
 215                         // So this old code will be called as well.
 216                         if (!$fb_installed) {
 217                                 $url ="https://graph.facebook.com/me/feed";
 218                                 $s = fetch_url($url."?access_token=".$access_token."&limit=1", false, $redirects, 10);
 219                                 if($s) {
 220                                         $j = json_decode($s);
 221                                         if (isset($j->data))
 222                                                 $fb_installed = true;
 223                                 }
 224                         }
 225                 }
 226         }
 227
 228         $appid = get_config('facebook','appid');
 229
 230         if(! $appid) {
 231                 notice( t('Facebook API key is missing.') . EOL);
 232                 return '';
 233         }
 234
 235         $a->page['htmlhead'] .= '<link rel="stylesheet" type="text/css" href="'
 236                 . $a->get_baseurl() . '/addon/fbpost/fbpost.css' . '" media="all" />' . "\r\n";
 237
 238         $result = q("SELECT `installed` FROM `addon` WHERE `name` = 'fbsync' AND `installed`");
 239         $fbsync = (count($result) > 0);
 240
 241         if($fbsync)
 242                 $title = t('Facebook Import/Export/Mirror');
 243         else
 244                 $title = t('Facebook Export/Mirror');
 245
 246         $o .= '<img class="connector" src="images/facebook.png" /><h3 class="connector">'.$title.'</h3>';
 247
 248         if(! $fb_installed) {
 249                 $o .= '<div id="fbpost-enable-wrapper">';
 250
 251                 //read_stream,publish_stream,manage_pages,photo_upload,user_groups,offline_access
 252                 //export_stream,read_stream,publish_stream,manage_pages,photo_upload,user_groups,publish_actions,user_friends,share_item,video_upload,status_update
 253
 254                 $o .= '<a href="https://www.facebook.com/dialog/oauth?client_id=' . $appid . '&redirect_uri='
 255                         . $a->get_baseurl() . '/fbpost/' . $a->user['nickname'] . '&scope=publish_actions,publish_pages,user_posts,user_photos,user_status,user_videos,manage_pages,user_managed_groups">' . t('Install Facebook Post connector for this account.') . '</a>';
 256                 $o .= '</div>';
 257         }
 258
 259         if($fb_installed) {
 260                 $o .= '<div id="fbpost-disable-wrapper">';
 261
 262                 $o .= '<a href="' . $a->get_baseurl() . '/fbpost/remove' . '">' . t('Remove Facebook Post connector') . '</a></div>';
 263
 264                 $o .= '<div id="fbpost-enable-wrapper">';
 265
 266                 //export_stream,read_stream,publish_stream,manage_pages,photo_upload,user_groups,publish_actions,user_friends,share_item,video_upload,status_update
 267
 268                 $o .= '<a href="https://www.facebook.com/dialog/oauth?client_id=' . $appid . '&redirect_uri='
 269                         . $a->get_baseurl() . '/fbpost/' . $a->user['nickname'] . '&scope=publish_actions,publish_pages,user_posts,user_photos,user_status,user_videos,manage_pages,user_managed_groups">' . t('Re-authenticate [This is necessary whenever your Facebook password is changed.]') . '</a>';
 270                 $o .= '</div>';
 271
 272                 $o .= '<div id="fbpost-post-default-form">';
 273                 $o .= '<form action="fbpost" method="post" >';
 274                 $post_by_default = get_pconfig(local_user(),'facebook','post_by_default');
 275                 $checked = (($post_by_default) ? ' checked="checked" ' : '');
 276                 $o .= '<input type="checkbox" name="post_by_default" value="1"' . $checked . '/>' . ' ' . t('Post to Facebook by default') . EOL;
 277
 278                 $suppress_view_on_friendica = get_pconfig(local_user(),'facebook','suppress_view_on_friendica');
 279                 $checked = (($suppress_view_on_friendica) ? ' checked="checked" ' : '');
 280                 $o .= '<input type="checkbox" name="suppress_view_on_friendica" value="1"' . $checked . '/>' . ' ' . t('Suppress "View on friendica"') . EOL;
 281
 282                 $mirror_posts = get_pconfig(local_user(),'facebook','mirror_posts');
 283                 $checked = (($mirror_posts) ? ' checked="checked" ' : '');
 284                 $o .= '<input type="checkbox" name="mirror_posts" value="1"' . $checked . '/>' . ' ' . t('Mirror wall posts from facebook to friendica.') . EOL;
 285
 286                 // List all pages
 287                 $post_to_page = get_pconfig(local_user(),'facebook','post_to_page');
 288                 $page_access_token = get_pconfig(local_user(),'facebook','page_access_token');
 289                 $fb_token  = get_pconfig($a->user['uid'],'facebook','access_token');
 290                 //$url = 'https://graph.facebook.com/me/accounts';
 291                 //$x = fetch_url($url."?access_token=".$fb_token, false, $redirects, 10);
 292                 //$accounts = json_decode($x);
 293
 294                 $o .= t("Post to page/group:")."<select name='post_to_page'>";
 295                 if (intval($post_to_page) == 0)
 296                         $o .= "<option value='0-0' selected>".t('None')."</option>";
 297                 else
 298                         $o .= "<option value='0-0'>".t('None')."</option>";
 299
 300                 foreach($accounts->data as $account) {
 301                         if (is_array($account->perms))
 302                                 if ($post_to_page == $account->id)
 303                                         $o .= "<option value='".$account->id."-".$account->access_token."' selected>".$account->name."</option>";
 304                                 else
 305                                         $o .= "<option value='".$account->id."-".$account->access_token."'>".$account->name."</option>";
 306                 }
 307
 308                 $url = 'https://graph.facebook.com/me/groups';
 309                 $x = fetch_url($url."?access_token=".$fb_token, false, $redirects, 10);
 310                 $groups = json_decode($x);
 311
 312                 foreach($groups->data as $group) {
 313                         if ($post_to_page == $group->id)
 314                                 $o .= "<option value='".$group->id."-0' selected>".$group->name."</option>";
 315                         else
 316                                 $o .= "<option value='".$group->id."-0'>".$group->name."</option>";
 317                 }
 318
 319                 $o .= "</select>";
 320
 321                 if ($fbsync) {
 322
 323                         $o .= '<div class="clear"></div>';
 324
 325                         $sync_enabled = get_pconfig(local_user(),'fbsync','sync');
 326                         $checked = (($sync_enabled) ? ' checked="checked" ' : '');
 327                         $o .= '<input type="checkbox" name="fbsync" value="1"' . $checked . '/>' . ' ' . t('Import Facebook newsfeed.') . EOL;
 328
 329                         $create_user = get_pconfig(local_user(),'fbsync','create_user');
 330                         $checked = (($create_user) ? ' checked="checked" ' : '');
 331                         $o .= '<input type="checkbox" name="create_user" value="1"' . $checked . '/>' . ' ' . t('Automatically create contacts.') . EOL;
 332
 333                 }
 334                 $o .= '<p><input type="submit" name="submit" value="' . t('Save Settings') . '" /></form></div>';
 335         }
 336
 337         return $o;
 338 }
 339
 340 /**
 341  * @param App $a
 342  * @param null|object $b
 343  */
 344 function fbpost_plugin_settings(&$a,&$b) {
 345
 346         $enabled = get_pconfig(local_user(),'facebook','post');
 347         $css = (($enabled) ? '' : '-disabled');
 348
 349         $result = q("SELECT `installed` FROM `addon` WHERE `name` = 'fbsync' AND `installed`");
 350         if(count($result) > 0)
 351                 $title = t('Facebook Import/Export/Mirror');
 352         else
 353                 $title = t('Facebook Export/Mirror');
 354
 355         $b .= '<div class="settings-block">';
 356         $b .= '<a href="fbpost"><img class="connector'.$css.'" src="images/facebook.png" /><h3 class="connector">'.$title.'</h3></a>';
 357         $b .= '</div>';
 358 }
 359
 360
 361 /**
 362  * @param App $a
 363  * @param null|object $o
 364  */
 365 function fbpost_plugin_admin(&$a, &$o){
 366
 367
 368         $o = '<input type="hidden" name="form_security_token" value="' . get_form_security_token("fbsave") . '">';
 369
 370         $o .= '<h4>' . t('Facebook API Key') . '</h4>';
 371
 372         $appid  = get_config('facebook', 'appid'  );
 373         $appsecret = get_config('facebook', 'appsecret' );
 374
 375         $ret1 = q("SELECT `v` FROM `config` WHERE `cat` = 'facebook' AND `k` = 'appid' LIMIT 1");
 376         $ret2 = q("SELECT `v` FROM `config` WHERE `cat` = 'facebook' AND `k` = 'appsecret' LIMIT 1");
 377         if ((count($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>');
 378
 379         $o .= '<label for="fb_appid">' . t('App-ID / API-Key') . '</label><input id="fb_appid" name="appid" type="text" value="' . escape_tags($appid ? $appid : "") . '"><br style="clear: both;">';
 380         $o .= '<label for="fb_appsecret">' . t('Application secret') . '</label><input id="fb_appsecret" name="appsecret" type="text" value="' . escape_tags($appsecret ? $appsecret : "") . '"><br style="clear: both;">';
 381
 382         $o .= '<input type="submit" name="fb_save_keys" value="' . t('Save') . '">';
 383
 384 }
 385
 386 /**
 387  * @param App $a
 388  */
 389
 390 function fbpost_plugin_admin_post(&$a){
 391         check_form_security_token_redirectOnErr('/admin/plugins/fbpost', 'fbsave');
 392
 393         if (x($_REQUEST,'fb_save_keys')) {
 394                 set_config('facebook', 'appid', $_REQUEST['appid']);
 395                 set_config('facebook', 'appsecret', $_REQUEST['appsecret']);
 396
 397                 info(t('The new values have been saved.'));
 398         }
 399
 400 }
 401
 402 /**
 403  * @param App $a
 404  * @param object $b
 405  * @return mixed
 406  */
 407 function fbpost_jot_nets(&$a,&$b) {
 408         if(! local_user())
 409                 return;
 410
 411         $fb_post = get_pconfig(local_user(),'facebook','post');
 412         if(intval($fb_post) == 1) {
 413                 $fb_defpost = get_pconfig(local_user(),'facebook','post_by_default');
 414                 $selected = ((intval($fb_defpost) == 1) ? ' checked="checked" ' : '');
 415                 $b .= '<div class="profile-jot-net"><input type="checkbox" name="facebook_enable"' . $selected . ' value="1" /> '
 416                         . t('Post to Facebook') . '</div>';
 417         }
 418 }
 419
 420 /**
 421  * @param App $a
 422  * @param object $b
 423  * @return mixed
 424  */
 425 function fbpost_post_hook(&$a,&$b) {
 426
 427         logger('fbpost_post_hook: Facebook post invoked', LOGGER_DEBUG);
 428
 429         if($b['deleted'] || ($b['created'] !== $b['edited']))
 430                 return;
 431
 432         logger('fbpost_post_hook: Facebook post first check successful', LOGGER_DEBUG);
 433
 434         // if post comes from facebook don't send it back
 435         if($b['extid'] == NETWORK_FACEBOOK)
 436                 return;
 437
 438         if(($b['app'] == "Facebook") && ($b['verb'] != ACTIVITY_LIKE))
 439                 return;
 440
 441         logger('fbpost_post_hook: Facebook post accepted', LOGGER_DEBUG);
 442
 443         /**
 444          * Post to Facebook stream
 445          */
 446
 447         require_once('include/group.php');
 448         require_once('include/html2plain.php');
 449
 450
 451         $reply = false;
 452         $likes = false;
 453
 454         $deny_arr = array();
 455         $allow_arr = array();
 456
 457         $toplevel = (($b['id'] == $b['parent']) ? true : false);
 458
 459
 460         $linking = ((get_pconfig($b['uid'],'facebook','no_linking')) ? 0 : 1);
 461
 462         if((!$toplevel) && ($linking)) {
 463                 $r = q("SELECT * FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1",
 464                         intval($b['parent']),
 465                         intval($b['uid'])
 466                 );
 467                 //$r = q("SELECT * FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 468                 //      dbesc($b['parent-uri']),
 469                 //      intval($b['uid'])
 470                 //);
 471
 472                 // is it a reply to a facebook post?
 473                 // A reply to a toplevel post is only allowed for "real" facebook posts
 474                 if(count($r) && substr($r[0]['uri'],0,4) === 'fb::')
 475                         $reply = substr($r[0]['uri'],4);
 476                 elseif(count($r) && (substr($r[0]['extid'],0,4) === 'fb::') && ($r[0]['id'] != $r[0]['parent']))
 477                         $reply = substr($r[0]['extid'],4);
 478                 else
 479                         return;
 480
 481                 $u = q("SELECT * FROM user where uid = %d limit 1",
 482                         intval($b['uid'])
 483                 );
 484                 if(! count($u))
 485                         return;
 486
 487                 // only accept comments from the item owner. Other contacts are unknown to FB.
 488
 489                 if(! link_compare($b['author-link'], $a->get_baseurl() . '/profile/' . $u[0]['nickname']))
 490                         return;
 491
 492
 493                 logger('fbpost_post_hook: facebook reply id=' . $reply);
 494         }
 495
 496         if(strstr($b['postopts'],'facebook') || ($b['private']) || ($reply)) {
 497
 498                 if($b['private'] && $reply === false) {
 499                         $allow_people = expand_acl($b['allow_cid']);
 500                         $allow_groups = expand_groups(expand_acl($b['allow_gid']));
 501                         $deny_people  = expand_acl($b['deny_cid']);
 502                         $deny_groups  = expand_groups(expand_acl($b['deny_gid']));
 503
 504                         $recipients = array_unique(array_merge($allow_people,$allow_groups));
 505                         $deny = array_unique(array_merge($deny_people,$deny_groups));
 506
 507                         $allow_str = dbesc(implode(', ',$recipients));
 508                         if($allow_str) {
 509                                 logger("fbpost_post_hook: private post to: ".$allow_str, LOGGER_DEBUG);
 510                                 $r = q("SELECT `notify` FROM `contact` WHERE `id` IN ( $allow_str ) AND `network` = 'face'");
 511                                 if(count($r))
 512                                         foreach($r as $rr)
 513                                                 $allow_arr[] = $rr['notify'];
 514                         }
 515
 516                         $deny_str = dbesc(implode(', ',$deny));
 517                         if($deny_str) {
 518                                 $r = q("SELECT `notify` FROM `contact` WHERE `id` IN ( $deny_str ) AND `network` = 'face'");
 519                                 if(count($r))
 520                                         foreach($r as $rr)
 521                                                 $deny_arr[] = $rr['notify'];
 522                         }
 523
 524                         if(count($deny_arr) && (! count($allow_arr))) {
 525
 526                                 // One or more FB folks were denied access but nobody on FB was specifically allowed access.
 527                                 // This might cause the post to be open to public on Facebook, but only to selected members
 528                                 // on another network. Since this could potentially leak a post to somebody who was denied,
 529                                 // we will skip posting it to Facebook with a slightly vague but relevant message that will
 530                                 // hopefully lead somebody to this code comment for a better explanation of what went wrong.
 531
 532                                 notice( t('Post to Facebook cancelled because of multi-network access permission conflict.') . EOL);
 533                                 return;
 534                         }
 535
 536
 537                         // if it's a private message but no Facebook members are allowed or denied, skip Facebook post
 538
 539                         if((! count($allow_arr)) && (! count($deny_arr)))
 540                                 return;
 541                 }
 542
 543                 if($b['verb'] == ACTIVITY_LIKE) {
 544                         $likes = true;
 545                         logger('fbpost_post_hook: liking '.print_r($b, true), LOGGER_DEBUG);
 546                 }
 547
 548
 549                 $appid  = get_config('facebook', 'appid'  );
 550                 $secret = get_config('facebook', 'appsecret' );
 551
 552                 if($appid && $secret) {
 553
 554                         logger('fbpost_post_hook: have appid+secret');
 555
 556                         $fb_token  = get_pconfig($b['uid'],'facebook','access_token');
 557
 558
 559                         // post to facebook if it's a public post and we've ticked the 'post to Facebook' box,
 560                         // or it's a private message with facebook participants
 561                         // or it's a reply or likes action to an existing facebook post
 562
 563                         if($fb_token && ($toplevel || $b['private'] || $reply)) {
 564                                 logger('fbpost_post_hook: able to post');
 565                                 require_once('library/facebook.php');
 566                                 require_once('include/bbcode.php');
 567
 568                                 $msg = $b['body'];
 569
 570                                 logger('fbpost_post_hook: original msg=' . $msg, LOGGER_DATA);
 571
 572                                 if ($toplevel) {
 573                                         require_once("include/plaintext.php");
 574                                         $msgarr = plaintext($a, $b, 0, false, 9);
 575                                         $msg = $msgarr["text"];
 576                                         $link = $msgarr["url"];
 577                                         $linkname = $msgarr["title"];
 578
 579                                         if ($msgarr["type"] != "video")
 580                                                 $image = $msgarr["image"];
 581
 582                                         // Fallback - if message is empty
 583                                         if(!strlen($msg))
 584                                                 $msg = $linkname;
 585
 586                                         if(!strlen($msg))
 587                                                 $msg = $link;
 588
 589                                         if(!strlen($msg))
 590                                                 $msg = $image;
 591                                 } else {
 592                                         require_once("include/bbcode.php");
 593                                         require_once("include/html2plain.php");
 594                                         $msg = bb_CleanPictureLinks($msg);
 595                                         $msg = bbcode($msg, false, false, 2, true);
 596                                         $msg = trim(html2plain($msg, 0));
 597                                         $link = "";
 598                                         $image = "";
 599                                         $linkname = "";
 600                                 }
 601
 602                                 // If there is nothing to post then exit
 603                                 if(!strlen($msg))
 604                                         return;
 605
 606                                 logger('fbpost_post_hook: msg=' . $msg, LOGGER_DATA);
 607
 608                                 $video = "";
 609
 610                                 if($likes) {
 611                                         $postvars = array('access_token' => $fb_token);
 612                                 } else {
 613                                         // message, picture, link, name, caption, description, source, place, tags
 614                                         //if(trim($link) != "")
 615                                         //      if (@exif_imagetype($link) != 0) {
 616                                         //              $image = $link;
 617                                         //              $link = "";
 618                                         //      }
 619
 620                                         $postvars = array(
 621                                                 'access_token' => $fb_token,
 622                                                 'message' => $msg
 623                                         );
 624                                         if(trim($image) != "")
 625                                                 $postvars['picture'] = $image;
 626
 627                                         if(trim($link) != "") {
 628                                                 $postvars['link'] = $link;
 629
 630                                                 if ((stristr($link,'youtube')) || (stristr($link,'youtu.be')) || (stristr($link,'vimeo'))) {
 631                                                         $video = $link;
 632                                                 }
 633                                         }
 634                                         if(trim($linkname) != "")
 635                                                 $postvars['name'] = $linkname;
 636                                 }
 637
 638                                 if(($b['private']) && ($toplevel)) {
 639                                         $postvars['privacy'] = '{"value": "CUSTOM", "friends": "SOME_FRIENDS"';
 640                                         if(count($allow_arr))
 641                                                 $postvars['privacy'] .= ',"allow": "' . implode(',',$allow_arr) . '"';
 642                                         if(count($deny_arr))
 643                                                 $postvars['privacy'] .= ',"deny": "' . implode(',',$deny_arr) . '"';
 644                                         $postvars['privacy'] .= '}';
 645
 646                                 }
 647
 648                                 $post_to_page = get_pconfig($b['uid'],'facebook','post_to_page');
 649                                 $page_access_token = get_pconfig($b['uid'],'facebook','page_access_token');
 650                                 if ((intval($post_to_page) != 0) && ($page_access_token != ""))
 651                                         $target = $post_to_page;
 652                                 else
 653                                         $target = "me";
 654
 655                                 if($reply) {
 656                                         $url = 'https://graph.facebook.com/' . $reply . '/' . (($likes) ? 'likes' : 'comments');
 657                                 } else if (($video != "") || (($image == "") && ($link != ""))) {
 658                                         // If it is a link to a video or a link without a preview picture then post it as a link
 659                                         if ($video != "")
 660                                                 $link = $video;
 661
 662                                         $postvars = array(
 663                                                 'access_token' => $fb_token,
 664                                                 'link' => $link,
 665                                         );
 666                                         if ($msg != $video)
 667                                                 $postvars['message'] = $msg;
 668
 669                                         $url = 'https://graph.facebook.com/'.$target.'/links';
 670                                 } else if (($link == "") && ($image != "")) {
 671                                         // If it is only an image without a page link then post this image as a photo
 672                                         $postvars = array(
 673                                                 'access_token' => $fb_token,
 674                                                 'url' => $image,
 675                                         );
 676                                         if ($msg != $image)
 677                                                 $postvars['message'] = $msg;
 678
 679                                         $url = 'https://graph.facebook.com/'.$target.'/photos';
 680                                 //} else if (($link != "") || ($image != "") || ($b['title'] == '') || (strlen($msg) < 500)) {
 681                                 } else {
 682                                         $url = 'https://graph.facebook.com/'.$target.'/feed';
 683                                         if (!get_pconfig($b['uid'],'facebook','suppress_view_on_friendica') && $b['plink'])
 684                                                 $postvars['actions'] = '{"name": "' . t('View on Friendica') . '", "link": "' .  $b['plink'] . '"}';
 685                                 }
 686 /*                              } else {
 687                                         // if its only a message and a subject and the message is larger than 500 characters then post it as note
 688                                         $postvars = array(
 689                                                 'access_token' => $fb_token,
 690                                                 'message' => bbcode($b['body'], false, false),
 691                                                 'subject' => $b['title'],
 692                                         );
 693                                         $url = 'https://graph.facebook.com/'.$target.'/notes';
 694                                 } */
 695
 696                                 // Post to page?
 697                                 if (!$reply && ($target != "me") && $page_access_token)
 698                                         $postvars['access_token'] = $page_access_token;
 699
 700                                 logger('fbpost_post_hook: post to ' . $url);
 701                                 logger('fbpost_post_hook: postvars: ' . print_r($postvars,true));
 702
 703                                 // "test_mode" prevents anything from actually being posted.
 704                                 // Otherwise, let's do it.
 705
 706                                 if(!get_config('facebook','test_mode')) {
 707                                         $x = post_url($url, $postvars);
 708                                         logger('fbpost_post_hook: post returns: ' . $x, LOGGER_DEBUG);
 709
 710                                         $retj = json_decode($x);
 711                                         if($retj->id) {
 712                                                 // Only set the extid when it isn't the toplevel post
 713                                                 q("UPDATE `item` SET `extid` = '%s' WHERE `id` = %d AND `parent` != %d",
 714                                                         dbesc('fb::' . $retj->id),
 715                                                         intval($b['id']),
 716                                                         intval($b['id'])
 717                                                 );
 718                                         } else {
 719                                                 // Sometimes posts are accepted from facebook although it telling an error
 720                                                 // This leads to endless comment flooding.
 721
 722                                                 // If it is a special kind of failure the post was receiced
 723                                                 // Although facebook said it wasn't received ...
 724                                                 if (!$likes && (($retj->error->type != "OAuthException") || ($retj->error->code != 2)) && ($x <> "")) {
 725                                                         $r = q("SELECT `id` FROM `contact` WHERE `uid` = %d AND `self`", intval($b['uid']));
 726                                                         if (count($r))
 727                                                                 $a->contact = $r[0]["id"];
 728
 729                                                         $s = serialize(array('url' => $url, 'item' => $b['id'], 'post' => $postvars));
 730                                                         require_once('include/queue_fn.php');
 731                                                         add_to_queue($a->contact,NETWORK_FACEBOOK,$s);
 732                                                         logger('fbpost_post_hook: Post failed, requeued.', LOGGER_DEBUG);
 733                                                         notice( t('Facebook post failed. Queued for retry.') . EOL);
 734                                                 }
 735
 736                                                 if (isset($retj->error) && $retj->error->type == "OAuthException" && $retj->error->code == 190) {
 737                                                         logger('fbpost_post_hook: Facebook session has expired due to changed password.', LOGGER_DEBUG);
 738
 739                                                         $last_notification = get_pconfig($b['uid'], 'facebook', 'session_expired_mailsent');
 740                                                         if (!$last_notification || $last_notification < (time() - FACEBOOK_SESSION_ERR_NOTIFICATION_INTERVAL)) {
 741                                                                 require_once('include/enotify.php');
 742
 743                                                                 $r = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1", intval($b['uid']));
 744                                                                 notification(array(
 745                                                                         'uid' => $b['uid'],
 746                                                                         'type' => NOTIFY_SYSTEM,
 747                                                                         'system_type' => 'facebook_connection_invalid',
 748                                                                         'language'     => $r[0]['language'],
 749                                                                         'to_name'      => $r[0]['username'],
 750                                                                         'to_email'     => $r[0]['email'],
 751                                                                         'source_name'  => t('Administrator'),
 752                                                                         'source_link'  => $a->config["system"]["url"],
 753                                                                         'source_photo' => $a->config["system"]["url"] . '/images/person-80.jpg',
 754                                                                 ));
 755
 756                                                                 set_pconfig($b['uid'], 'facebook', 'session_expired_mailsent', time());
 757                                                         } else logger('fbpost_post_hook: No notification, as the last one was sent on ' . $last_notification, LOGGER_DEBUG);
 758                                                 }
 759                                         }
 760                                 }
 761                         }
 762                 }
 763         }
 764 }
 765
 766 /**
 767  * @param App $app
 768  * @param object $data
 769  */
 770 function fbpost_enotify(&$app, &$data) {
 771         if (x($data, 'params') && $data['params']['type'] == NOTIFY_SYSTEM && x($data['params'], 'system_type') && $data['params']['system_type'] == 'facebook_connection_invalid') {
 772                 $data['itemlink'] = '/fbpost';
 773                 $data['epreamble'] = $data['preamble'] = t('Your Facebook connection became invalid. Please Re-authenticate.');
 774                 $data['subject'] = t('Facebook connection became invalid');
 775                 $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]");
 776         }
 777 }
 778
 779 /**
 780  * @param App $a
 781  * @param object $b
 782  */
 783 function fbpost_post_local(&$a,&$b) {
 784
 785         // Figure out if Facebook posting is enabled for this post and file it in 'postopts'
 786         // where we will discover it during background delivery.
 787
 788         // This can only be triggered by a local user posting to their own wall.
 789
 790         if((local_user()) && (local_user() == $b['uid'])) {
 791
 792                 $fb_post   = intval(get_pconfig(local_user(),'facebook','post'));
 793                 $fb_enable = (($fb_post && x($_REQUEST,'facebook_enable')) ? intval($_REQUEST['facebook_enable']) : 0);
 794
 795                 // if API is used, default to the chosen settings
 796                 // but allow a specific override
 797
 798                 if($_REQUEST['api_source'] && intval(get_pconfig(local_user(),'facebook','post_by_default'))) {
 799                         if(! x($_REQUEST,'facebook_enable'))
 800                                 $fb_enable = 1;
 801                 }
 802
 803                 if(! $fb_enable)
 804                         return;
 805
 806                 if(strlen($b['postopts']))
 807                         $b['postopts'] .= ',';
 808                 $b['postopts'] .= 'facebook';
 809         }
 810 }
 811
 812
 813 /**
 814  * @param App $a
 815  * @param object $b
 816  */
 817 function fbpost_queue_hook(&$a,&$b) {
 818
 819         $qi = q("SELECT * FROM `queue` WHERE `network` = '%s'",
 820                 dbesc(NETWORK_FACEBOOK)
 821         );
 822         if(! count($qi))
 823                 return;
 824
 825         require_once('include/queue_fn.php');
 826
 827         foreach($qi as $x) {
 828                 if($x['network'] !== NETWORK_FACEBOOK)
 829                         continue;
 830
 831                 logger('fbpost_queue_hook: run');
 832
 833                 $r = q("SELECT `user`.* FROM `user` LEFT JOIN `contact` on `contact`.`uid` = `user`.`uid`
 834                         WHERE `contact`.`self` = 1 AND `contact`.`id` = %d LIMIT 1",
 835                         intval($x['cid'])
 836                 );
 837                 if(! count($r)) {
 838                         logger('fbpost_queue_hook: no user found for entry '.print_r($x, true));
 839                         update_queue_time($x['id']);
 840                         continue;
 841                 }
 842
 843                 $user = $r[0];
 844
 845                 $appid  = get_config('facebook', 'appid'  );
 846                 $secret = get_config('facebook', 'appsecret' );
 847
 848                 if($appid && $secret) {
 849                         $fb_post   = intval(get_pconfig($user['uid'],'facebook','post'));
 850                         $fb_token  = get_pconfig($user['uid'],'facebook','access_token');
 851
 852                         if($fb_post && $fb_token) {
 853                                 logger('fbpost_queue_hook: able to post');
 854                                 require_once('library/facebook.php');
 855
 856                                 $z = unserialize($x['content']);
 857                                 $item = $z['item'];
 858                                 $j = post_url($z['url'],$z['post']);
 859
 860                                 $retj = json_decode($j);
 861                                 if($retj->id) {
 862                                         // Only set the extid when it isn't the toplevel post
 863                                         q("UPDATE `item` SET `extid` = '%s' WHERE `id` = %d AND `parent` != %d",
 864                                                 dbesc('fb::' . $retj->id),
 865                                                 intval($item),
 866                                                 intval($item)
 867                                         );
 868                                         logger('fbpost_queue_hook: success: ' . $j);
 869                                         remove_queue_item($x['id']);
 870                                 } else {
 871                                         logger('fbpost_queue_hook: failed: ' . $j);
 872
 873                                         // If it is a special kind of failure the post was receiced
 874                                         // Although facebook said it wasn't received ...
 875                                         $ret = json_decode($j);
 876                                         if (($ret->error->type != "OAuthException") || ($ret->error->code != 2) && ($j <> ""))
 877                                                 update_queue_time($x['id']);
 878                                         else
 879                                                 logger('fbpost_queue_hook: Not requeued, since it seems to be received');
 880                                 }
 881                         } else {
 882                                 logger('fbpost_queue_hook: No fb_post or fb_token.');
 883                                 update_queue_time($x['id']);
 884                         }
 885                 } else {
 886                         logger('fbpost_queue_hook: No appid or secret.');
 887                         update_queue_time($x['id']);
 888                 }
 889         }
 890 }
 891
 892
 893 /**
 894  * @return bool|string
 895  */
 896 function fbpost_get_app_access_token() {
 897
 898         $acc_token = get_config('facebook','app_access_token');
 899
 900         if ($acc_token !== false) return $acc_token;
 901
 902         $appid = get_config('facebook','appid');
 903         $appsecret = get_config('facebook', 'appsecret');
 904
 905         if ($appid === false || $appsecret === false) {
 906                 logger('fb_get_app_access_token: appid and/or appsecret not set', LOGGER_DEBUG);
 907                 return false;
 908         }
 909         logger('https://graph.facebook.com/oauth/access_token?client_id=' . $appid . '&client_secret=' . $appsecret . '&grant_type=client_credentials', LOGGER_DATA);
 910         $x = fetch_url('https://graph.facebook.com/oauth/access_token?client_id=' . $appid . '&client_secret=' . $appsecret . '&grant_type=client_credentials');
 911
 912         if(strpos($x,'access_token=') !== false) {
 913                 logger('fb_get_app_access_token: returned access token: ' . $x, LOGGER_DATA);
 914
 915                 $token = str_replace('access_token=', '', $x);
 916                 if(strpos($token,'&') !== false)
 917                         $token = substr($token,0,strpos($token,'&'));
 918
 919                 if ($token == "") {
 920                         logger('fb_get_app_access_token: empty token: ' . $x, LOGGER_DEBUG);
 921                         return false;
 922                 }
 923                 set_config('facebook','app_access_token',$token);
 924                 return $token;
 925         } else {
 926                 logger('fb_get_app_access_token: response did not contain an access_token: ' . $x, LOGGER_DATA);
 927                 return false;
 928         }
 929 }
 930
 931 function fbpost_prepare_body(&$a,&$b) {
 932         if ($b["item"]["network"] != NETWORK_FACEBOOK)
 933                 return;
 934
 935         if ($b["preview"]) {
 936                 $msg = $b["item"]["body"];
 937
 938                 require_once("include/bbcode.php");
 939                 require_once("include/html2plain.php");
 940                 $msg = bb_CleanPictureLinks($msg);
 941                 $msg = bbcode($msg, false, false, 2, true);
 942                 $msg = trim(html2plain($msg, 0));
 943
 944                 $b['html'] = nl2br(htmlspecialchars($msg));
 945         }
 946 }
 947
 948 function fbpost_cron($a,$b) {
 949         $last = get_config('facebook','last_poll');
 950
 951         $poll_interval = intval(get_config('facebook','poll_interval'));
 952         if(! $poll_interval)
 953                 $poll_interval = FACEBOOK_DEFAULT_POLL_INTERVAL;
 954
 955         if($last) {
 956                 $next = $last + ($poll_interval * 60);
 957                 if($next > time()) {
 958                         logger('facebook: poll intervall not reached');
 959                         return;
 960                 }
 961         }
 962         logger('facebook: cron_start');
 963
 964         $r = q("SELECT * FROM `pconfig` WHERE `cat` = 'facebook' AND `k` = 'mirror_posts' AND `v` = '1' ORDER BY RAND() ");
 965         if(count($r)) {
 966                 foreach($r as $rr) {
 967                         logger('facebook: fetching for user '.$rr['uid']);
 968                         fbpost_fetchwall($a, $rr['uid']);
 969                 }
 970         }
 971
 972         logger('facebook: cron_end');
 973
 974         set_config('facebook','last_poll', time());
 975 }
 976
 977 function fbpost_cleanpicture($url) {
 978         require_once("include/Photo.php");
 979
 980         $urldata = parse_url($url);
 981         if (isset($urldata["query"])) {
 982                 parse_str($urldata["query"], $querydata);
 983                 if (isset($querydata["url"]) && (get_photo_info($querydata["url"])))
 984                         return($querydata["url"]);
 985         }
 986         return($url);
 987 }
 988
 989 function fbpost_fetchwall($a, $uid) {
 990         require_once("include/oembed.php");
 991         require_once("include/network.php");
 992         require_once("include/items.php");
 993         require_once("mod/item.php");
 994         require_once("include/bbcode.php");
 995
 996         $access_token = get_pconfig($uid,'facebook','access_token');
 997         $post_to_page = get_pconfig($uid,'facebook','post_to_page');
 998         $mirror_page = get_pconfig($uid,'facebook','mirror_page');
 999         $lastcreated = get_pconfig($uid,'facebook','last_created');
1000
1001         if ((int)$post_to_page == 0)
1002                 $post_to_page = "me";
1003
1004         if ((int)$mirror_page != 0)
1005                 $post_to_page = $mirror_page;
1006
1007         $url = "https://graph.facebook.com/".$post_to_page."/feed?access_token=".$access_token;
1008
1009         $first_time = ($lastcreated == "");
1010
1011         if ($lastcreated != "")
1012                 $url .= "&since=".urlencode($lastcreated);
1013
1014         $feed = fetch_url($url);
1015         $data = json_decode($feed);
1016
1017         if (!is_array($data->data))
1018                 return;
1019
1020         $items = array_reverse($data->data);
1021
1022         foreach ($items as $item) {
1023                 if ($item->created_time > $lastcreated)
1024                         $lastcreated = $item->created_time;
1025
1026                 if ($first_time)
1027                         continue;
1028
1029                 if ($item->application->id == get_config('facebook','appid'))
1030                         continue;
1031
1032                 if(isset($item->privacy) && ($item->privacy->value !== 'EVERYONE') && ((int)$mirror_page == 0))
1033                         continue;
1034                 elseif(isset($item->privacy) && ($item->privacy->value !== 'EVERYONE') && ($item->privacy->value !== ''))
1035                         continue;
1036                 elseif(!isset($item->privacy))
1037                         continue;
1038
1039                 if (($post_to_page != $item->from->id) && ((int)$post_to_page != 0))
1040                         continue;
1041
1042                 if (!strstr($item->id, $item->from->id."_") && isset($item->to) && ((int)$post_to_page == 0))
1043                         continue;
1044
1045                 $_SESSION["authenticated"] = true;
1046                 $_SESSION["uid"] = $uid;
1047
1048                 unset($_REQUEST);
1049                 $_REQUEST["type"] = "wall";
1050                 $_REQUEST["api_source"] = true;
1051                 $_REQUEST["profile_uid"] = $uid;
1052                 //$_REQUEST["source"] = "Facebook";
1053                 $_REQUEST["source"] = $item->application->name;
1054                 $_REQUEST["extid"] = NETWORK_FACEBOOK;
1055
1056                 $_REQUEST["title"] = "";
1057
1058                 $_REQUEST["body"] = (isset($item->message) ? escape_tags($item->message) : '');
1059
1060                 $pagedata = array();
1061                 $content = "";
1062                 $pagedata["type"] = "";
1063
1064                 if(isset($item->name) && isset($item->link)) {
1065                         $item->link = original_url($item->link);
1066                         $oembed_data = oembed_fetch_url($item->link);
1067                         $pagedata["type"] = $oembed_data->type;
1068                         $pagedata["url"] = $item->link;
1069                         $pagedata["title"] = $item->name;
1070                         $content = "[bookmark=".$item->link."]".$item->name."[/bookmark]";
1071
1072                         // If a link is not only attached but also added in the body, look if it can be removed in the body.
1073                         $removedlink = trim(str_replace($item->link, "", $_REQUEST["body"]));
1074
1075                         if (($removedlink == "") || strstr($_REQUEST["body"], $removedlink))
1076                                 $_REQUEST["body"] = $removedlink;
1077
1078                 } elseif (isset($item->name))
1079                         $content .= "[b]".$item->name."[/b]";
1080
1081                 $pagedata["text"] = "";
1082                 if(isset($item->description) && ($item->type != "photo"))
1083                         $pagedata["text"] = $item->description;
1084
1085                 if(isset($item->caption) && ($item->type == "photo"))
1086                         $pagedata["text"] = $item->caption;
1087
1088                 // Only import the picture when the message is no video
1089                 // oembed display a picture of the video as well
1090                 //if ($item->type != "video") {
1091                 //if (($item->type != "video") && ($item->type != "photo")) {
1092                 if (($pagedata["type"] == "") || ($pagedata["type"] == "link")) {
1093
1094                         $pagedata["type"] = $item->type;
1095
1096                         if (isset($item->picture))
1097                                 $pagedata["images"][0]["src"] = $item->picture;
1098
1099                         if (($pagedata["type"] == "photo") && isset($item->object_id)) {
1100                                  logger('fbpost_fetchwall: fetching fbid '.$item->object_id, LOGGER_DEBUG);
1101                                 $url = "https://graph.facebook.com/".$item->object_id."?access_token=".$access_token;
1102                                 $feed = fetch_url($url);
1103                                 $data = json_decode($feed);
1104                                 if (isset($data->images)) {
1105                                         $pagedata["images"][0]["src"] = $data->images[0]->source;
1106                                         logger('got fbid image from images for '.$item->object_id, LOGGER_DEBUG);
1107                                 } elseif (isset($data->source)) {
1108                                         $pagedata["images"][0]["src"] = $data->source;
1109                                         logger('got fbid image from source for '.$item->object_id, LOGGER_DEBUG);
1110                                 } elseif (isset($data->picture)) {
1111                                         $pagedata["images"][0]["src"] = $data->picture;
1112                                         logger('got fbid image from picture for '.$item->object_id, LOGGER_DEBUG);
1113                                 }
1114                         }
1115
1116                         if(trim($_REQUEST["body"].$content.$pagedata["text"]) == '') {
1117                                 logger('facebook: empty body 1 '.$item->id.' '.print_r($item, true));
1118                                 continue;
1119                         }
1120
1121                         $pagedata["images"][0]["src"] = fbpost_cleanpicture($pagedata["images"][0]["src"]);
1122
1123                         if(($pagedata["images"][0]["src"] != "") && isset($item->link)) {
1124                                 $item->link = original_url($item->link);
1125                                 $pagedata["url"] = $item->link;
1126                                 $content .= "\n".'[url='.$item->link.'][img]'.$pagedata["images"][0]["src"].'[/img][/url]';
1127                         } else {
1128                                 if ($pagedata["images"][0]["src"] != "")
1129                                         $content .= "\n".'[img]'.$pagedata["images"][0]["src"].'[/img]';
1130                                 // if just a link, it may be a wall photo - check
1131                                 if(isset($item->link))
1132                                         $content .= fbpost_get_photo($uid,$item->link);
1133                         }
1134                 }
1135
1136                 if(trim($_REQUEST["body"].$content.$pagedata["text"]) == '') {
1137                         logger('facebook: empty body 2 '.$item->id.' '.print_r($item, true));
1138                         continue;
1139                 }
1140
1141                 if ($pagedata["type"] != "")
1142                         $_REQUEST["body"] .= add_page_info_data($pagedata);
1143                 else {
1144                         if ($content)
1145                                 $_REQUEST["body"] .= "\n".trim($content);
1146
1147                         if ($pagedata["text"])
1148                                 $_REQUEST["body"] .= "\n[quote]".$pagedata["text"]."[/quote]";
1149
1150                         $_REQUEST["body"] = trim($_REQUEST["body"]);
1151                 }
1152
1153                 if (isset($item->place)) {
1154                         if ($item->place->name || $item->place->location->street ||
1155                                 $item->place->location->city || $item->place->location->country) {
1156                                 $_REQUEST["location"] = '';
1157                                 if ($item->place->name)
1158                                         $_REQUEST["location"] .= $item->place->name;
1159                                 if ($item->place->location->street)
1160                                         $_REQUEST["location"] .= " ".$item->place->location->street;
1161                                 if ($item->place->location->city)
1162                                         $_REQUEST["location"] .= " ".$item->place->location->city;
1163                                 if ($item->place->location->country)
1164                                         $_REQUEST["location"] .= " ".$item->place->location->country;
1165
1166                                 $_REQUEST["location"] = trim($_REQUEST["location"]);
1167                         }
1168                         if ($item->place->location->latitude && $item->place->location->longitude)
1169                                 $_REQUEST["coord"] = substr($item->place->location->latitude, 0, 8)
1170                                                 .' '.substr($item->place->location->longitude, 0, 8);
1171                 }
1172
1173                 if(trim($_REQUEST["body"]) == '') {
1174                         logger('facebook: empty body 3 '.$item->id.' '.print_r($item, true));
1175                         continue;
1176                 }
1177
1178                 if(trim(strip_tags(bbcode($_REQUEST["body"], false, false))) == '') {
1179                         logger('facebook: empty body 4 '.$item->id.' '.print_r($item, true));
1180                         continue;
1181                 }
1182
1183
1184                 //print_r($_REQUEST);
1185                 logger('facebook: posting for user '.$uid);
1186                 item_post($a);
1187         }
1188
1189         set_pconfig($uid,'facebook','last_created', $lastcreated);
1190 }
1191
1192 function fbpost_get_photo($uid,$link) {
1193         $access_token = get_pconfig($uid,'facebook','access_token');
1194         if(! $access_token || (! stristr($link,'facebook.com/photo.php')))
1195                 return "";
1196
1197         $ret = preg_match('/fbid=([0-9]*)/',$link,$match);
1198         if($ret)
1199                 $photo_id = $match[1];
1200         else
1201                 return "";
1202
1203         $x = fetch_url('https://graph.facebook.com/'.$photo_id.'?access_token='.$access_token);
1204         $j = json_decode($x);
1205         if($j->picture)
1206                 return "\n\n".'[url='.$link.'][img]'.$j->picture.'[/img][/url]';
1207
1208         return "";
1209 }
1210
1211 function fpost_cleanpicture($image) {
1212
1213         if ((strpos($image, ".fbcdn.net/") || strpos($image, "/fbcdn-photos-")) && (substr($image, -6) == "_s.jpg"))
1214                 $image = substr($image, 0, -6)."_n.jpg";
1215
1216         $queryvar = fbpost_parse_query($image);
1217         if ($queryvar['url'] != "")
1218                 $image = urldecode($queryvar['url']);
1219
1220         return $image;
1221 }
1222
1223 function fbpost_parse_query($var) {
1224         /**
1225          *  Use this function to parse out the query array element from
1226          *  the output of parse_url().
1227         */
1228         $var  = parse_url($var, PHP_URL_QUERY);
1229         $var  = html_entity_decode($var);
1230         $var  = explode('&', $var);
1231         $arr  = array();
1232
1233         foreach($var as $val) {
1234                 $x          = explode('=', $val);
1235                 $arr[$x[0]] = $x[1];
1236         }
1237
1238         unset($val, $x, $var);
1239         return $arr;
1240 }