addon/facebook/facebook.php

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