mod/item.php

   1 <?php
   2
   3 /**
   4  *
   5  * This is the POST destination for most all locally posted
   6  * text stuff. This function handles status, wall-to-wall status,
   7  * local comments, and remote coments that are posted on this site
   8  * (as opposed to being delivered in a feed).
   9  * Also processed here are posts and comments coming through the
  10  * statusnet/twitter API.
  11  * All of these become an "item" which is our basic unit of
  12  * information.
  13  * Posts that originate externally or do not fall into the above
  14  * posting categories go through item_store() instead of this function.
  15  *
  16  */
  17
  18 require_once('include/crypto.php');
  19 require_once('include/enotify.php');
  20 require_once('include/email.php');
  21 require_once('library/langdet/Text/LanguageDetect.php');
  22 require_once('include/tags.php');
  23 require_once('include/files.php');
  24 require_once('include/threads.php');
  25
  26 function item_post(&$a) {
  27
  28         if((! local_user()) && (! remote_user()) && (! x($_REQUEST,'commenter')))
  29                 return;
  30
  31         require_once('include/security.php');
  32
  33         $uid = local_user();
  34
  35         if(x($_REQUEST,'dropitems')) {
  36                 require_once('include/items.php');
  37                 $arr_drop = explode(',',$_REQUEST['dropitems']);
  38                 drop_items($arr_drop);
  39                 $json = array('success' => 1);
  40                 echo json_encode($json);
  41                 killme();
  42         }
  43
  44         call_hooks('post_local_start', $_REQUEST);
  45 //      logger('postinput ' . file_get_contents('php://input'));
  46         logger('postvars ' . print_r($_REQUEST,true), LOGGER_DATA);
  47
  48         $api_source = ((x($_REQUEST,'api_source') && $_REQUEST['api_source']) ? true : false);
  49
  50         $message_id = ((x($_REQUEST,'message_id') && $api_source)  ? strip_tags($_REQUEST['message_id'])       : '');
  51
  52         $return_path = ((x($_REQUEST,'return')) ? $_REQUEST['return'] : '');
  53         $preview = ((x($_REQUEST,'preview')) ? intval($_REQUEST['preview']) : 0);
  54
  55
  56         // Check for doubly-submitted posts, and reject duplicates
  57         // Note that we have to ignore previews, otherwise nothing will post
  58         // after it's been previewed
  59         if(!$preview && x($_REQUEST['post_id_random'])) {
  60                 if(x($_SESSION['post-random']) && $_SESSION['post-random'] == $_REQUEST['post_id_random']) {
  61                         logger("item post: duplicate post", LOGGER_DEBUG);
  62                         item_post_return($a->get_baseurl(), $api_source, $return_path);
  63                 }
  64                 else
  65                         $_SESSION['post-random'] = $_REQUEST['post_id_random'];
  66         }
  67
  68         /**
  69          * Is this a reply to something?
  70          */
  71
  72         $parent = ((x($_REQUEST,'parent')) ? intval($_REQUEST['parent']) : 0);
  73         $parent_uri = ((x($_REQUEST,'parent_uri')) ? trim($_REQUEST['parent_uri']) : '');
  74
  75         $parent_item = null;
  76         $parent_contact = null;
  77         $thr_parent = '';
  78         $parid = 0;
  79         $r = false;
  80         $objecttype = null;
  81
  82         if($parent || $parent_uri) {
  83
  84                 $objecttype = ACTIVITY_OBJ_COMMENT;
  85
  86                 if(! x($_REQUEST,'type'))
  87                         $_REQUEST['type'] = 'net-comment';
  88
  89                 if($parent) {
  90                         $r = q("SELECT * FROM `item` WHERE `id` = %d LIMIT 1",
  91                                 intval($parent)
  92                         );
  93                 }
  94                 elseif($parent_uri && local_user()) {
  95                         // This is coming from an API source, and we are logged in
  96                         $r = q("SELECT * FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
  97                                 dbesc($parent_uri),
  98                                 intval(local_user())
  99                         );
 100                 }
 101                 // if this isn't the real parent of the conversation, find it
 102                 if($r !== false && count($r)) {
 103                         $parid = $r[0]['parent'];
 104                         $parent_uri = $r[0]['uri'];
 105                         if($r[0]['id'] != $r[0]['parent']) {
 106                                 $r = q("SELECT * FROM `item` WHERE `id` = `parent` AND `parent` = %d LIMIT 1",
 107                                         intval($parid)
 108                                 );
 109                         }
 110                 }
 111
 112                 if(($r === false) || (! count($r))) {
 113                         notice( t('Unable to locate original post.') . EOL);
 114                         if(x($_REQUEST,'return'))
 115                                 goaway($a->get_baseurl() . "/" . $return_path );
 116                         killme();
 117                 }
 118                 $parent_item = $r[0];
 119                 $parent = $r[0]['id'];
 120
 121                 // multi-level threading - preserve the info but re-parent to our single level threading
 122                 //if(($parid) && ($parid != $parent))
 123                 $thr_parent = $parent_uri;
 124
 125                 if($parent_item['contact-id'] && $uid) {
 126                         $r = q("SELECT * FROM `contact` WHERE `id` = %d AND `uid` = %d LIMIT 1",
 127                                 intval($parent_item['contact-id']),
 128                                 intval($uid)
 129                         );
 130                         if(count($r))
 131                                 $parent_contact = $r[0];
 132                 }
 133         }
 134
 135         if($parent) logger('mod_item: item_post parent=' . $parent);
 136
 137         $profile_uid = ((x($_REQUEST,'profile_uid')) ? intval($_REQUEST['profile_uid']) : 0);
 138         $post_id     = ((x($_REQUEST,'post_id'))     ? intval($_REQUEST['post_id'])     : 0);
 139         $app         = ((x($_REQUEST,'source'))      ? strip_tags($_REQUEST['source'])  : '');
 140         $extid       = ((x($_REQUEST,'extid'))       ? strip_tags($_REQUEST['extid'])  : '');
 141
 142         $allow_moderated = false;
 143
 144         // here is where we are going to check for permission to post a moderated comment.
 145
 146         // First check that the parent exists and it is a wall item.
 147
 148         if((x($_REQUEST,'commenter')) && ((! $parent) || (! $parent_item['wall']))) {
 149                 notice( t('Permission denied.') . EOL) ;
 150                 if(x($_REQUEST,'return'))
 151                         goaway($a->get_baseurl() . "/" . $return_path );
 152                 killme();
 153         }
 154
 155         // Now check that it is a page_type of PAGE_BLOG, and that valid personal details
 156         // have been provided, and run any anti-spam plugins
 157
 158
 159         // TODO
 160
 161
 162
 163
 164         if((! can_write_wall($a,$profile_uid)) && (! $allow_moderated)) {
 165                 notice( t('Permission denied.') . EOL) ;
 166                 if(x($_REQUEST,'return'))
 167                         goaway($a->get_baseurl() . "/" . $return_path );
 168                 killme();
 169         }
 170
 171
 172         // is this an edited post?
 173
 174         $orig_post = null;
 175
 176         if($post_id) {
 177                 $i = q("SELECT * FROM `item` WHERE `uid` = %d AND `id` = %d LIMIT 1",
 178                         intval($profile_uid),
 179                         intval($post_id)
 180                 );
 181                 if(! count($i))
 182                         killme();
 183                 $orig_post = $i[0];
 184         }
 185
 186         $user = null;
 187
 188         $r = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1",
 189                 intval($profile_uid)
 190         );
 191         if(count($r))
 192                 $user = $r[0];
 193
 194         if($orig_post) {
 195                 $str_group_allow   = $orig_post['allow_gid'];
 196                 $str_contact_allow = $orig_post['allow_cid'];
 197                 $str_group_deny    = $orig_post['deny_gid'];
 198                 $str_contact_deny  = $orig_post['deny_cid'];
 199                 $location          = $orig_post['location'];
 200                 $coord             = $orig_post['coord'];
 201                 $verb              = $orig_post['verb'];
 202                 $objecttype        = $orig_post['object-type'];
 203                 $emailcc           = $orig_post['emailcc'];
 204                 $app               = $orig_post['app'];
 205                 $categories        = $orig_post['file'];
 206                 $title             = notags(trim($_REQUEST['title']));
 207                 $body              = escape_tags(trim($_REQUEST['body']));
 208                 $private           = $orig_post['private'];
 209                 $pubmail_enable    = $orig_post['pubmail'];
 210                 $network           = $orig_post['network'];
 211                 $guid              = $orig_post['guid'];
 212                 $extid             = $orig_post['extid'];
 213
 214         } else {
 215
 216                 // if coming from the API and no privacy settings are set,
 217                 // use the user default permissions - as they won't have
 218                 // been supplied via a form.
 219
 220                 if(($api_source)
 221                         && (! array_key_exists('contact_allow',$_REQUEST))
 222                         && (! array_key_exists('group_allow',$_REQUEST))
 223                         && (! array_key_exists('contact_deny',$_REQUEST))
 224                         && (! array_key_exists('group_deny',$_REQUEST))) {
 225                         $str_group_allow   = $user['allow_gid'];
 226                         $str_contact_allow = $user['allow_cid'];
 227                         $str_group_deny    = $user['deny_gid'];
 228                         $str_contact_deny  = $user['deny_cid'];
 229                 }
 230                 else {
 231
 232                         // use the posted permissions
 233
 234                         $str_group_allow   = perms2str($_REQUEST['group_allow']);
 235                         $str_contact_allow = perms2str($_REQUEST['contact_allow']);
 236                         $str_group_deny    = perms2str($_REQUEST['group_deny']);
 237                         $str_contact_deny  = perms2str($_REQUEST['contact_deny']);
 238                 }
 239
 240                 $title             = notags(trim($_REQUEST['title']));
 241                 $location          = notags(trim($_REQUEST['location']));
 242                 $coord             = notags(trim($_REQUEST['coord']));
 243                 $verb              = notags(trim($_REQUEST['verb']));
 244                 $emailcc           = notags(trim($_REQUEST['emailcc']));
 245                 $body              = escape_tags(trim($_REQUEST['body']));
 246                 $network           = notags(trim($_REQUEST['network']));
 247                 $guid              = get_guid(32);
 248
 249
 250                 $naked_body = preg_replace('/\[(.+?)\]/','',$body);
 251
 252                 if (version_compare(PHP_VERSION, '5.3.0', '>=')) {
 253                         $l = new Text_LanguageDetect;
 254                         //$lng = $l->detectConfidence($naked_body);
 255                         //$postopts = (($lng['language']) ? 'lang=' . $lng['language'] . ';' . $lng['confidence'] : '');
 256
 257                         $lng = $l->detect($naked_body, 3);
 258
 259                         if (sizeof($lng) > 0) {
 260                                 $postopts = "";
 261
 262                                 foreach ($lng as $language => $score) {
 263                                         if ($postopts == "")
 264                                                 $postopts = "lang=";
 265                                         else
 266                                                 $postopts .= ":";
 267
 268                                         $postopts .= $language.";".$score;
 269                                 }
 270                         }
 271
 272                         logger('mod_item: detect language' . print_r($lng,true) . $naked_body, LOGGER_DATA);
 273                 }
 274                 else
 275                         $postopts = '';
 276
 277
 278                 $private = ((strlen($str_group_allow) || strlen($str_contact_allow) || strlen($str_group_deny) || strlen($str_contact_deny)) ? 1 : 0);
 279
 280
 281                 if($user['hidewall'])
 282                         $private = 2;
 283
 284                 // If this is a comment, set the permissions from the parent.
 285
 286                 if($parent_item) {
 287                         $private = 0;
 288
 289                         // for non native networks use the network of the original post as network of the item
 290                         if (($parent_item['network'] != NETWORK_DIASPORA)
 291                                 AND ($parent_item['network'] != NETWORK_OSTATUS)
 292                                 AND ($network == ""))
 293                                 $network = $parent_item['network'];
 294
 295                         if(($parent_item['private'])
 296                                 || strlen($parent_item['allow_cid'])
 297                                 || strlen($parent_item['allow_gid'])
 298                                 || strlen($parent_item['deny_cid'])
 299                                 || strlen($parent_item['deny_gid'])) {
 300                                 $private = (($parent_item['private']) ? $parent_item['private'] : 1);
 301                         }
 302
 303                         $str_contact_allow = $parent_item['allow_cid'];
 304                         $str_group_allow   = $parent_item['allow_gid'];
 305                         $str_contact_deny  = $parent_item['deny_cid'];
 306                         $str_group_deny    = $parent_item['deny_gid'];
 307                 }
 308                 $pubmail_enable    = ((x($_REQUEST,'pubmail_enable') && intval($_REQUEST['pubmail_enable']) && (! $private)) ? 1 : 0);
 309
 310                 // if using the API, we won't see pubmail_enable - figure out if it should be set
 311
 312                 if($api_source && $profile_uid && $profile_uid == local_user() && (! $private)) {
 313                         $mail_disabled = ((function_exists('imap_open') && (! get_config('system','imap_disabled'))) ? 0 : 1);
 314                         if(! $mail_disabled) {
 315                                 $r = q("SELECT * FROM `mailacct` WHERE `uid` = %d AND `server` != '' LIMIT 1",
 316                                         intval(local_user())
 317                                 );
 318                                 if(count($r) && intval($r[0]['pubmail']))
 319                                         $pubmail_enabled = true;
 320                         }
 321                 }
 322
 323                 if(! strlen($body)) {
 324                         if($preview)
 325                                 killme();
 326                         info( t('Empty post discarded.') . EOL );
 327                         if(x($_REQUEST,'return'))
 328                                 goaway($a->get_baseurl() . "/" . $return_path );
 329                         killme();
 330                 }
 331         }
 332
 333         if(strlen($categories)) {
 334                 // get the "fileas" tags for this post
 335                 $filedas = file_tag_file_to_list($categories, 'file');
 336         }
 337         // save old and new categories, so we can determine what needs to be deleted from pconfig
 338         $categories_old = $categories;
 339         $categories = file_tag_list_to_file(trim($_REQUEST['category']), 'category');
 340         $categories_new = $categories;
 341         if(strlen($filedas)) {
 342                 // append the fileas stuff to the new categories list
 343                 $categories .= file_tag_list_to_file($filedas, 'file');
 344         }
 345
 346         // Work around doubled linefeeds in Tinymce 3.5b2
 347         // First figure out if it's a status post that would've been
 348         // created using tinymce. Otherwise leave it alone.
 349
 350 /*      $plaintext = (local_user() ? intval(get_pconfig(local_user(),'system','plaintext')) || !feature_enabled($profile_uid,'richtext') : 0);
 351         if((! $parent) && (! $api_source) && (! $plaintext)) {
 352                 $body = fix_mce_lf($body);
 353         }*/
 354         $plaintext = (local_user() ? !feature_enabled($profile_uid,'richtext') : 0);
 355         if((! $parent) && (! $api_source) && (! $plaintext)) {
 356                 $body = fix_mce_lf($body);
 357         }
 358
 359
 360         // get contact info for poster
 361
 362         $author = null;
 363         $self   = false;
 364         $contact_id = 0;
 365
 366         if((local_user()) && (local_user() == $profile_uid)) {
 367                 $self = true;
 368                 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 1 LIMIT 1",
 369                         intval($_SESSION['uid'])
 370                 );
 371         }
 372         elseif(remote_user()) {
 373                 if(is_array($_SESSION['remote'])) {
 374                         foreach($_SESSION['remote'] as $v) {
 375                                 if($v['uid'] == $profile_uid) {
 376                                         $contact_id = $v['cid'];
 377                                         break;
 378                                 }
 379                         }
 380                 }
 381                 if($contact_id) {
 382                         $r = q("SELECT * FROM `contact` WHERE `id` = %d LIMIT 1",
 383                                 intval($contact_id)
 384                         );
 385                 }
 386         }
 387
 388         if(count($r)) {
 389                 $author = $r[0];
 390                 $contact_id = $author['id'];
 391         }
 392
 393         // get contact info for owner
 394
 395         if($profile_uid == local_user()) {
 396                 $contact_record = $author;
 397         }
 398         else {
 399                 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 1 LIMIT 1",
 400                         intval($profile_uid)
 401                 );
 402                 if(count($r))
 403                         $contact_record = $r[0];
 404         }
 405
 406         $post_type = notags(trim($_REQUEST['type']));
 407
 408         if($post_type === 'net-comment') {
 409                 if($parent_item !== null) {
 410                         if($parent_item['wall'] == 1)
 411                                 $post_type = 'wall-comment';
 412                         else
 413                                 $post_type = 'remote-comment';
 414                 }
 415         }
 416
 417         /**
 418          *
 419          * When a photo was uploaded into the message using the (profile wall) ajax
 420          * uploader, The permissions are initially set to disallow anybody but the
 421          * owner from seeing it. This is because the permissions may not yet have been
 422          * set for the post. If it's private, the photo permissions should be set
 423          * appropriately. But we didn't know the final permissions on the post until
 424          * now. So now we'll look for links of uploaded messages that are in the
 425          * post and set them to the same permissions as the post itself.
 426          *
 427          */
 428
 429         $match = null;
 430
 431         if((! $preview) && preg_match_all("/\[img([\=0-9x]*?)\](.*?)\[\/img\]/",$body,$match)) {
 432                 $images = $match[2];
 433                 if(count($images)) {
 434
 435                         $objecttype = ACTIVITY_OBJ_IMAGE;
 436
 437                         foreach($images as $image) {
 438                                 if(! stristr($image,$a->get_baseurl() . '/photo/'))
 439                                         continue;
 440                                 $image_uri = substr($image,strrpos($image,'/') + 1);
 441                                 $image_uri = substr($image_uri,0, strpos($image_uri,'-'));
 442                                 if(! strlen($image_uri))
 443                                         continue;
 444                                 $srch = '<' . intval($contact_id) . '>';
 445
 446                                 $r = q("SELECT `id` FROM `photo` WHERE `allow_cid` = '%s' AND `allow_gid` = '' AND `deny_cid` = '' AND `deny_gid` = ''
 447                                         AND `resource-id` = '%s' AND `uid` = %d LIMIT 1",
 448                                         dbesc($srch),
 449                                         dbesc($image_uri),
 450                                         intval($profile_uid)
 451                                 );
 452
 453                                 if(! count($r))
 454                                         continue;
 455
 456
 457                                 $r = q("UPDATE `photo` SET `allow_cid` = '%s', `allow_gid` = '%s', `deny_cid` = '%s', `deny_gid` = '%s'
 458                                         WHERE `resource-id` = '%s' AND `uid` = %d AND `album` = '%s' ",
 459                                         dbesc($str_contact_allow),
 460                                         dbesc($str_group_allow),
 461                                         dbesc($str_contact_deny),
 462                                         dbesc($str_group_deny),
 463                                         dbesc($image_uri),
 464                                         intval($profile_uid),
 465                                         dbesc( t('Wall Photos'))
 466                                 );
 467
 468                         }
 469                 }
 470         }
 471
 472
 473         /**
 474          * Next link in any attachment references we find in the post.
 475          */
 476
 477         $match = false;
 478
 479         if((! $preview) && preg_match_all("/\[attachment\](.*?)\[\/attachment\]/",$body,$match)) {
 480                 $attaches = $match[1];
 481                 if(count($attaches)) {
 482                         foreach($attaches as $attach) {
 483                                 $r = q("SELECT * FROM `attach` WHERE `uid` = %d AND `id` = %d LIMIT 1",
 484                                         intval($profile_uid),
 485                                         intval($attach)
 486                                 );
 487                                 if(count($r)) {
 488                                         $r = q("UPDATE `attach` SET `allow_cid` = '%s', `allow_gid` = '%s', `deny_cid` = '%s', `deny_gid` = '%s'
 489                                                 WHERE `uid` = %d AND `id` = %d",
 490                                                 dbesc($str_contact_allow),
 491                                                 dbesc($str_group_allow),
 492                                                 dbesc($str_contact_deny),
 493                                                 dbesc($str_group_deny),
 494                                                 intval($profile_uid),
 495                                                 intval($attach)
 496                                         );
 497                                 }
 498                         }
 499                 }
 500         }
 501
 502         // embedded bookmark in post? set bookmark flag
 503
 504         $bookmark = 0;
 505         if(preg_match_all("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism",$body,$match,PREG_SET_ORDER)) {
 506                 $objecttype = ACTIVITY_OBJ_BOOKMARK;
 507                 $bookmark = 1;
 508         }
 509
 510         $body = bb_translate_video($body);
 511
 512
 513         /**
 514          * Fold multi-line [code] sequences
 515          */
 516
 517         $body = preg_replace('/\[\/code\]\s*\[code\]/ism',"\n",$body);
 518
 519         $body = scale_external_images($body,false);
 520
 521
 522         // Setting the object type if not defined before
 523         if (!$objecttype) {
 524                 $objecttype = ACTIVITY_OBJ_NOTE; // Default value
 525                 require_once("include/plaintext.php");
 526                 $objectdata = get_attached_data($body);
 527
 528                 if ($post["type"] == "link")
 529                         $objecttype = ACTIVITY_OBJ_BOOKMARK;
 530                 elseif ($post["type"] == "video")
 531                         $objecttype = ACTIVITY_OBJ_VIDEO;
 532                 elseif ($post["type"] == "photo")
 533                         $objecttype = ACTIVITY_OBJ_IMAGE;
 534
 535         }
 536
 537         /**
 538          * Look for any tags and linkify them
 539          */
 540
 541         $str_tags = '';
 542         $inform   = '';
 543
 544
 545         $tags = get_tags($body);
 546
 547         /**
 548          * add a statusnet style reply tag if the original post was from there
 549          * and we are replying, and there isn't one already
 550          */
 551
 552         if(($parent_contact) && ($parent_contact['network'] === NETWORK_OSTATUS)
 553                 && ($parent_contact['nick']) && (! in_array('@' . $parent_contact['nick'],$tags))) {
 554                 $body = '@' . $parent_contact['nick'] . ' ' . $body;
 555                 $tags[] = '@' . $parent_contact['nick'];
 556         }
 557
 558         $tagged = array();
 559
 560         $private_forum = false;
 561
 562         if(count($tags)) {
 563                 foreach($tags as $tag) {
 564
 565                         // If we already tagged 'Robert Johnson', don't try and tag 'Robert'.
 566                         // Robert Johnson should be first in the $tags array
 567
 568                         $fullnametagged = false;
 569                         for($x = 0; $x < count($tagged); $x ++) {
 570                                 if(stristr($tagged[$x],$tag . ' ')) {
 571                                         $fullnametagged = true;
 572                                         break;
 573                                 }
 574                         }
 575                         if($fullnametagged)
 576                                 continue;
 577
 578                         $success = handle_tag($a, $body, $inform, $str_tags, (local_user()) ? local_user() : $profile_uid , $tag, $network);
 579                         if($success['replaced'])
 580                                 $tagged[] = $tag;
 581                         if(is_array($success['contact']) && intval($success['contact']['prv'])) {
 582                                 $private_forum = true;
 583                                 $private_id = $success['contact']['id'];
 584                         }
 585                 }
 586         }
 587
 588         if(($private_forum) && (! $parent) && (! $private)) {
 589                 // we tagged a private forum in a top level post and the message was public.
 590                 // Restrict it.
 591                 $private = 1;
 592                 $str_contact_allow = '<' . $private_id . '>';
 593         }
 594
 595         $attachments = '';
 596         $match = false;
 597
 598         if(preg_match_all('/(\[attachment\]([0-9]+)\[\/attachment\])/',$body,$match)) {
 599                 foreach($match[2] as $mtch) {
 600                         $r = q("SELECT `id`,`filename`,`filesize`,`filetype` FROM `attach` WHERE `uid` = %d AND `id` = %d LIMIT 1",
 601                                 intval($profile_uid),
 602                                 intval($mtch)
 603                         );
 604                         if(count($r)) {
 605                                 if(strlen($attachments))
 606                                         $attachments .= ',';
 607                                 $attachments .= '[attach]href="' . $a->get_baseurl() . '/attach/' . $r[0]['id'] . '" length="' . $r[0]['filesize'] . '" type="' . $r[0]['filetype'] . '" title="' . (($r[0]['filename']) ? $r[0]['filename'] : '') . '"[/attach]';
 608                         }
 609                         $body = str_replace($match[1],'',$body);
 610                 }
 611         }
 612
 613         $wall = 0;
 614
 615         if($post_type === 'wall' || $post_type === 'wall-comment')
 616                 $wall = 1;
 617
 618         if(! strlen($verb))
 619                 $verb = ACTIVITY_POST ;
 620
 621         if ($network == "")
 622                 $network = NETWORK_DFRN;
 623
 624         $gravity = (($parent) ? 6 : 0 );
 625
 626         // even if the post arrived via API we are considering that it
 627         // originated on this site by default for determining relayability.
 628
 629         $origin = ((x($_REQUEST,'origin')) ? intval($_REQUEST['origin']) : 1);
 630
 631         $notify_type = (($parent) ? 'comment-new' : 'wall-new' );
 632
 633         $uri = (($message_id) ? $message_id : item_new_uri($a->get_hostname(),$profile_uid));
 634
 635         // Fallback so that we alway have a thr-parent
 636         if(!$thr_parent)
 637                 $thr_parent = $uri;
 638
 639         $datarray = array();
 640         $datarray['uid']           = $profile_uid;
 641         $datarray['type']          = $post_type;
 642         $datarray['wall']          = $wall;
 643         $datarray['gravity']       = $gravity;
 644         $datarray['network']       = $network;
 645         $datarray['contact-id']    = $contact_id;
 646         $datarray['owner-name']    = $contact_record['name'];
 647         $datarray['owner-link']    = $contact_record['url'];
 648         $datarray['owner-avatar']  = $contact_record['thumb'];
 649         $datarray['author-name']   = $author['name'];
 650         $datarray['author-link']   = $author['url'];
 651         $datarray['author-avatar'] = $author['thumb'];
 652         $datarray['created']       = datetime_convert();
 653         $datarray['edited']        = datetime_convert();
 654         $datarray['commented']     = datetime_convert();
 655         $datarray['received']      = datetime_convert();
 656         $datarray['changed']       = datetime_convert();
 657         $datarray['extid']         = $extid;
 658         $datarray['guid']          = $guid;
 659         $datarray['uri']           = $uri;
 660         $datarray['title']         = $title;
 661         $datarray['body']          = $body;
 662         $datarray['app']           = $app;
 663         $datarray['location']      = $location;
 664         $datarray['coord']         = $coord;
 665         $datarray['tag']           = $str_tags;
 666         $datarray['file']          = $categories;
 667         $datarray['inform']        = $inform;
 668         $datarray['verb']          = $verb;
 669         $datarray['object-type']   = $objecttype;
 670         $datarray['allow_cid']     = $str_contact_allow;
 671         $datarray['allow_gid']     = $str_group_allow;
 672         $datarray['deny_cid']      = $str_contact_deny;
 673         $datarray['deny_gid']      = $str_group_deny;
 674         $datarray['private']       = $private;
 675         $datarray['pubmail']       = $pubmail_enable;
 676         $datarray['attach']        = $attachments;
 677         $datarray['bookmark']      = intval($bookmark);
 678         $datarray['thr-parent']    = $thr_parent;
 679         $datarray['postopts']      = $postopts;
 680         $datarray['origin']        = $origin;
 681         $datarray['moderated']     = $allow_moderated;
 682
 683         /**
 684          * These fields are for the convenience of plugins...
 685          * 'self' if true indicates the owner is posting on their own wall
 686          * If parent is 0 it is a top-level post.
 687          */
 688
 689         $datarray['parent']        = $parent;
 690         $datarray['self']          = $self;
 691 //      $datarray['prvnets']       = $user['prvnets'];
 692
 693         if($orig_post)
 694                 $datarray['edit']      = true;
 695
 696         // preview mode - prepare the body for display and send it via json
 697
 698         if($preview) {
 699                 require_once('include/conversation.php');
 700                 $o = conversation($a,array(array_merge($contact_record,$datarray)),'search', false, true);
 701                 logger('preview: ' . $o);
 702                 echo json_encode(array('preview' => $o));
 703                 killme();
 704         }
 705
 706
 707         call_hooks('post_local',$datarray);
 708
 709         if(x($datarray,'cancel')) {
 710                 logger('mod_item: post cancelled by plugin.');
 711                 if($return_path) {
 712                         goaway($a->get_baseurl() . "/" . $return_path);
 713                 }
 714
 715                 $json = array('cancel' => 1);
 716                 if(x($_REQUEST,'jsreload') && strlen($_REQUEST['jsreload']))
 717                         $json['reload'] = $a->get_baseurl() . '/' . $_REQUEST['jsreload'];
 718
 719                 echo json_encode($json);
 720                 killme();
 721         }
 722
 723
 724         if($orig_post) {
 725                 $r = q("UPDATE `item` SET `title` = '%s', `body` = '%s', `tag` = '%s', `attach` = '%s', `file` = '%s', `edited` = '%s', `changed` = '%s' WHERE `id` = %d AND `uid` = %d",
 726                         dbesc($datarray['title']),
 727                         dbesc($datarray['body']),
 728                         dbesc($datarray['tag']),
 729                         dbesc($datarray['attach']),
 730                         dbesc($datarray['file']),
 731                         dbesc(datetime_convert()),
 732                         dbesc(datetime_convert()),
 733                         intval($post_id),
 734                         intval($profile_uid)
 735                 );
 736
 737                 create_tags_from_item($post_id);
 738                 create_files_from_item($post_id);
 739                 update_thread($post_id);
 740
 741                 // update filetags in pconfig
 742                 file_tag_update_pconfig($uid,$categories_old,$categories_new,'category');
 743
 744                 proc_run('php', "include/notifier.php", 'edit_post', "$post_id");
 745                 if((x($_REQUEST,'return')) && strlen($return_path)) {
 746                         logger('return: ' . $return_path);
 747                         goaway($a->get_baseurl() . "/" . $return_path );
 748                 }
 749                 killme();
 750         }
 751         else
 752                 $post_id = 0;
 753
 754
 755         $r = q("INSERT INTO `item` (`guid`, `extid`, `uid`,`type`,`wall`,`gravity`, `network`, `contact-id`,`owner-name`,`owner-link`,`owner-avatar`,
 756                 `author-name`, `author-link`, `author-avatar`, `created`, `edited`, `commented`, `received`, `changed`, `uri`, `thr-parent`, `title`, `body`, `app`, `location`, `coord`,
 757                 `tag`, `inform`, `verb`, `object-type`, `postopts`, `allow_cid`, `allow_gid`, `deny_cid`, `deny_gid`, `private`, `pubmail`, `attach`, `bookmark`,`origin`, `moderated`, `file` )
 758                 VALUES( '%s', '%s', %d, '%s', %d, %d, '%s', %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', %d, %d, '%s', %d, %d, %d, '%s' )",
 759                 dbesc($datarray['guid']),
 760                 dbesc($datarray['extid']),
 761                 intval($datarray['uid']),
 762                 dbesc($datarray['type']),
 763                 intval($datarray['wall']),
 764                 intval($datarray['gravity']),
 765                 dbesc($datarray['network']),
 766                 intval($datarray['contact-id']),
 767                 dbesc($datarray['owner-name']),
 768                 dbesc($datarray['owner-link']),
 769                 dbesc($datarray['owner-avatar']),
 770                 dbesc($datarray['author-name']),
 771                 dbesc($datarray['author-link']),
 772                 dbesc($datarray['author-avatar']),
 773                 dbesc($datarray['created']),
 774                 dbesc($datarray['edited']),
 775                 dbesc($datarray['commented']),
 776                 dbesc($datarray['received']),
 777                 dbesc($datarray['changed']),
 778                 dbesc($datarray['uri']),
 779                 dbesc($datarray['thr-parent']),
 780                 dbesc($datarray['title']),
 781                 dbesc($datarray['body']),
 782                 dbesc($datarray['app']),
 783                 dbesc($datarray['location']),
 784                 dbesc($datarray['coord']),
 785                 dbesc($datarray['tag']),
 786                 dbesc($datarray['inform']),
 787                 dbesc($datarray['verb']),
 788                 dbesc($datarray['object-type']),
 789                 dbesc($datarray['postopts']),
 790                 dbesc($datarray['allow_cid']),
 791                 dbesc($datarray['allow_gid']),
 792                 dbesc($datarray['deny_cid']),
 793                 dbesc($datarray['deny_gid']),
 794                 intval($datarray['private']),
 795                 intval($datarray['pubmail']),
 796                 dbesc($datarray['attach']),
 797                 intval($datarray['bookmark']),
 798                 intval($datarray['origin']),
 799                 intval($datarray['moderated']),
 800                 dbesc($datarray['file'])
 801                );
 802
 803         $r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' LIMIT 1",
 804                 dbesc($datarray['uri']));
 805         if(count($r)) {
 806                 $post_id = $r[0]['id'];
 807                 logger('mod_item: saved item ' . $post_id);
 808                 add_thread($post_id);
 809
 810                 // update filetags in pconfig
 811                 file_tag_update_pconfig($uid,$categories_old,$categories_new,'category');
 812
 813                 // Store the fresh generated item into the cache
 814                 $cachefile = get_cachefile(urlencode($datarray["guid"])."-".hash("md5", $datarray['body']));
 815
 816                 if (($cachefile != '') AND !file_exists($cachefile)) {
 817                         $s = prepare_text($datarray['body']);
 818                         $stamp1 = microtime(true);
 819                         file_put_contents($cachefile, $s);
 820                         $a->save_timestamp($stamp1, "file");
 821                         logger('mod_item: put item '.$r[0]['id'].' into cachefile '.$cachefile);
 822                 }
 823
 824                 if($parent) {
 825
 826                         // This item is the last leaf and gets the comment box, clear any ancestors
 827                         $r = q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent` = %d ",
 828                                 dbesc(datetime_convert()),
 829                                 intval($parent)
 830                         );
 831                         update_thread($parent, true);
 832
 833                         // Inherit ACLs from the parent item.
 834
 835                         $r = q("UPDATE `item` SET `allow_cid` = '%s', `allow_gid` = '%s', `deny_cid` = '%s', `deny_gid` = '%s', `private` = %d
 836                                 WHERE `id` = %d",
 837                                 dbesc($parent_item['allow_cid']),
 838                                 dbesc($parent_item['allow_gid']),
 839                                 dbesc($parent_item['deny_cid']),
 840                                 dbesc($parent_item['deny_gid']),
 841                                 intval($parent_item['private']),
 842                                 intval($post_id)
 843                         );
 844
 845                         if($contact_record != $author) {
 846                                 notification(array(
 847                                         'type'         => NOTIFY_COMMENT,
 848                                         'notify_flags' => $user['notify-flags'],
 849                                         'language'     => $user['language'],
 850                                         'to_name'      => $user['username'],
 851                                         'to_email'     => $user['email'],
 852                                         'uid'          => $user['uid'],
 853                                         'item'         => $datarray,
 854                                         'link'          => $a->get_baseurl().'/display/'.urlencode($datarray['guid']),
 855                                         'source_name'  => $datarray['author-name'],
 856                                         'source_link'  => $datarray['author-link'],
 857                                         'source_photo' => $datarray['author-avatar'],
 858                                         'verb'         => ACTIVITY_POST,
 859                                         'otype'        => 'item',
 860                                         'parent'       => $parent,
 861                                         'parent_uri'   => $parent_item['uri']
 862                                 ));
 863
 864                         }
 865
 866
 867                         // Store the comment signature information in case we need to relay to Diaspora
 868                         store_diaspora_comment_sig($datarray, $author, ($self ? $a->user['prvkey'] : false), $parent_item, $post_id);
 869
 870                 } else {
 871                         $parent = $post_id;
 872
 873                         if($contact_record != $author) {
 874                                 notification(array(
 875                                         'type'         => NOTIFY_WALL,
 876                                         'notify_flags' => $user['notify-flags'],
 877                                         'language'     => $user['language'],
 878                                         'to_name'      => $user['username'],
 879                                         'to_email'     => $user['email'],
 880                                         'uid'          => $user['uid'],
 881                                         'item'         => $datarray,
 882                                         'link'          => $a->get_baseurl().'/display/'.urlencode($datarray['guid']),
 883                                         'source_name'  => $datarray['author-name'],
 884                                         'source_link'  => $datarray['author-link'],
 885                                         'source_photo' => $datarray['author-avatar'],
 886                                         'verb'         => ACTIVITY_POST,
 887                                         'otype'        => 'item'
 888                                 ));
 889                         }
 890                 }
 891
 892                 // fallback so that parent always gets set to non-zero.
 893
 894                 if(! $parent)
 895                         $parent = $post_id;
 896
 897                 $r = q("UPDATE `item` SET `parent` = %d, `parent-uri` = '%s', `plink` = '%s', `changed` = '%s', `last-child` = 1, `visible` = 1
 898                         WHERE `id` = %d",
 899                         intval($parent),
 900                         dbesc(($parent == $post_id) ? $uri : $parent_item['uri']),
 901                         dbesc($a->get_baseurl().'/display/'.urlencode($datarray['guid'])),
 902                         dbesc(datetime_convert()),
 903                         intval($post_id)
 904                 );
 905
 906                 // photo comments turn the corresponding item visible to the profile wall
 907                 // This way we don't see every picture in your new photo album posted to your wall at once.
 908                 // They will show up as people comment on them.
 909
 910                 if(! $parent_item['visible']) {
 911                         $r = q("UPDATE `item` SET `visible` = 1 WHERE `id` = %d",
 912                                 intval($parent_item['id'])
 913                         );
 914                         update_thread($parent_item['id']);
 915                 }
 916         }
 917         else {
 918                 logger('mod_item: unable to retrieve post that was just stored.');
 919                 notice( t('System error. Post not saved.') . EOL);
 920                 goaway($a->get_baseurl() . "/" . $return_path );
 921                 // NOTREACHED
 922         }
 923
 924         // update the commented timestamp on the parent
 925
 926         q("UPDATE `item` set `commented` = '%s', `changed` = '%s' WHERE `id` = %d",
 927                 dbesc(datetime_convert()),
 928                 dbesc(datetime_convert()),
 929                 intval($parent)
 930         );
 931         update_thread($parent);
 932
 933         $datarray['id']    = $post_id;
 934         $datarray['plink'] = $a->get_baseurl().'/display/'.urlencode($datarray['guid']);
 935
 936         call_hooks('post_local_end', $datarray);
 937
 938         if(strlen($emailcc) && $profile_uid == local_user()) {
 939                 $erecips = explode(',', $emailcc);
 940                 if(count($erecips)) {
 941                         foreach($erecips as $recip) {
 942                                 $addr = trim($recip);
 943                                 if(! strlen($addr))
 944                                         continue;
 945                                 $disclaimer = '<hr />' . sprintf( t('This message was sent to you by %s, a member of the Friendica social network.'),$a->user['username'])
 946                                         . '<br />';
 947                                 $disclaimer .= sprintf( t('You may visit them online at %s'), $a->get_baseurl() . '/profile/' . $a->user['nickname']) . EOL;
 948                                 $disclaimer .= t('Please contact the sender by replying to this post if you do not wish to receive these messages.') . EOL;
 949                                 if (!$datarray['title']=='') {
 950                                     $subject = email_header_encode($datarray['title'],'UTF-8');
 951                                 } else {
 952                                     $subject = email_header_encode('[Friendica]' . ' ' . sprintf( t('%s posted an update.'),$a->user['username']),'UTF-8');
 953                                 }
 954                                 $link = '<a href="' . $a->get_baseurl() . '/profile/' . $a->user['nickname'] . '"><img src="' . $author['thumb'] . '" alt="' . $a->user['username'] . '" /></a><br /><br />';
 955                                 $html    = prepare_body($datarray);
 956                                 $message = '<html><body>' . $link . $html . $disclaimer . '</body></html>';
 957                                 include_once('include/html2plain.php');
 958                                 $params = array (
 959                                     'fromName' => $a->user['username'],
 960                                     'fromEmail' => $a->user['email'],
 961                                     'toEmail' => $addr,
 962                                     'replyTo' => $a->user['email'],
 963                                     'messageSubject' => $subject,
 964                                     'htmlVersion' => $message,
 965                                     'textVersion' => html2plain($html.$disclaimer),
 966                                 );
 967                                 enotify::send($params);
 968                         }
 969                 }
 970         }
 971
 972         create_tags_from_item($post_id);
 973         create_files_from_item($post_id);
 974         update_thread($post_id);
 975
 976         // This is a real juggling act on shared hosting services which kill your processes
 977         // e.g. dreamhost. We used to start delivery to our native delivery agents in the background
 978         // and then run our plugin delivery from the foreground. We're now doing plugin delivery first,
 979         // because as soon as you start loading up a bunch of remote delivey processes, *this* page is
 980         // likely to get killed off. If you end up looking at an /item URL and a blank page,
 981         // it's very likely the delivery got killed before all your friends could be notified.
 982         // Currently the only realistic fixes are to use a reliable server - which precludes shared hosting,
 983         // or cut back on plugins which do remote deliveries.
 984
 985         proc_run('php', "include/notifier.php", $notify_type, "$post_id");
 986
 987         logger('post_complete');
 988
 989         item_post_return($a->get_baseurl(), $api_source, $return_path);
 990         // NOTREACHED
 991 }
 992
 993 function item_post_return($baseurl, $api_source, $return_path) {
 994         // figure out how to return, depending on from whence we came
 995
 996         if($api_source)
 997                 return;
 998
 999         if($return_path) {
1000                 goaway($baseurl . "/" . $return_path);
1001         }
1002
1003         $json = array('success' => 1);
1004         if(x($_REQUEST,'jsreload') && strlen($_REQUEST['jsreload']))
1005                 $json['reload'] = $baseurl . '/' . $_REQUEST['jsreload'];
1006
1007         logger('post_json: ' . print_r($json,true), LOGGER_DEBUG);
1008
1009         echo json_encode($json);
1010         killme();
1011 }
1012
1013
1014
1015 function item_content(&$a) {
1016
1017         if((! local_user()) && (! remote_user()))
1018                 return;
1019
1020         require_once('include/security.php');
1021
1022         $o = '';
1023         if(($a->argc == 3) && ($a->argv[1] === 'drop') && intval($a->argv[2])) {
1024                 require_once('include/items.php');
1025                 $o = drop_item($a->argv[2], !is_ajax());
1026                 if (is_ajax()){
1027                         // ajax return: [<item id>, 0 (no perm) | <owner id>]
1028                         echo json_encode(array(intval($a->argv[2]), intval($o)));
1029                         killme();
1030                 }
1031         }
1032         return $o;
1033 }
1034
1035 /**
1036  * This function removes the tag $tag from the text $body and replaces it with
1037  * the appropiate link.
1038  *
1039  * @param unknown_type $body the text to replace the tag in
1040  * @param unknown_type $inform a comma-seperated string containing everybody to inform
1041  * @param unknown_type $str_tags string to add the tag to
1042  * @param unknown_type $profile_uid
1043  * @param unknown_type $tag the tag to replace
1044  *
1045  * @return boolean true if replaced, false if not replaced
1046  */
1047 function handle_tag($a, &$body, &$inform, &$str_tags, $profile_uid, $tag, $network = "") {
1048
1049         $replaced = false;
1050         $r = null;
1051
1052         //is it a hash tag?
1053         if(strpos($tag,'#') === 0) {
1054                 //if the tag is replaced...
1055                 if(strpos($tag,'[url='))
1056                         //...do nothing
1057                         return $replaced;
1058                 //base tag has the tags name only
1059                 $basetag = str_replace('_',' ',substr($tag,1));
1060                 //create text for link
1061                 $newtag = '#[url=' . $a->get_baseurl() . '/search?tag=' . rawurlencode($basetag) . ']' . $basetag . '[/url]';
1062                 //replace tag by the link
1063                 $body = str_replace($tag, $newtag, $body);
1064                 $replaced = true;
1065
1066                 //is the link already in str_tags?
1067                 if(! stristr($str_tags,$newtag)) {
1068                         //append or set str_tags
1069                         if(strlen($str_tags))
1070                                 $str_tags .= ',';
1071                         $str_tags .= $newtag;
1072                 }
1073                 return $replaced;
1074         }
1075         //is it a person tag?
1076         if(strpos($tag,'@') === 0) {
1077                 //is it already replaced?
1078                 if(strpos($tag,'[url='))
1079                         return $replaced;
1080                 $stat = false;
1081                 //get the person's name
1082                 $name = substr($tag,1);
1083                 //is it a link or a full dfrn address?
1084                 if((strpos($name,'@')) || (strpos($name,'http://'))) {
1085                         $newname = $name;
1086                         //get the profile links
1087                         $links = @lrdd($name);
1088                         if(count($links)) {
1089                                 //for all links, collect how is to inform and how's profile is to link
1090                                 foreach($links as $link) {
1091                                         if($link['@attributes']['rel'] === 'http://webfinger.net/rel/profile-page')
1092                                                 $profile = $link['@attributes']['href'];
1093                                         if($link['@attributes']['rel'] === 'salmon') {
1094                                                 if(strlen($inform))
1095                                                         $inform .= ',';
1096                                                 $inform .= 'url:' . str_replace(',','%2c',$link['@attributes']['href']);
1097                                         }
1098                                 }
1099                         }
1100                 } elseif (($network != NETWORK_OSTATUS) AND ($network != NETWORK_TWITTER) AND
1101                         ($network != NETWORK_STATUSNET) AND ($network != NETWORK_APPNET)) {
1102                         //if it is a name rather than an address
1103                         $newname = $name;
1104                         $alias = '';
1105                         $tagcid = 0;
1106                         //is it some generated name?
1107                         if(strrpos($newname,'+')) {
1108                                 //get the id
1109                                 $tagcid = intval(substr($newname,strrpos($newname,'+') + 1));
1110                                 //remove the next word from tag's name
1111                                 if(strpos($name,' ')) {
1112                                         $name = substr($name,0,strpos($name,' '));
1113                                 }
1114                         }
1115                         if($tagcid) { //if there was an id
1116                                 //select contact with that id from the logged in user's contact list
1117                                 $r = q("SELECT * FROM `contact` WHERE `id` = %d AND `uid` = %d LIMIT 1",
1118                                                 intval($tagcid),
1119                                                 intval($profile_uid)
1120                                 );
1121                         }
1122                         else {
1123                                 $newname = str_replace('_',' ',$name);
1124
1125                                 // At first try to fetch a contact according to the given network
1126                                 if ($network != "") {
1127                                         //select someone from this user's contacts by name
1128                                         $r = q("SELECT * FROM `contact` WHERE `name` = '%s' AND `network` = '%s' AND `uid` = %d LIMIT 1",
1129                                                         dbesc($newname),
1130                                                         dbesc($network),
1131                                                         intval($profile_uid)
1132                                         );
1133                                         if(! $r) {
1134                                                 //select someone by attag or nick and the name passed in
1135                                                 $r = q("SELECT * FROM `contact` WHERE `attag` = '%s' OR `nick` = '%s' AND `network` = '%s' AND `uid` = %d ORDER BY `attag` DESC LIMIT 1",
1136                                                                 dbesc($name),
1137                                                                 dbesc($name),
1138                                                                 dbesc($network),
1139                                                                 intval($profile_uid)
1140                                                 );
1141                                         }
1142                                 } else
1143                                         $r = false;
1144
1145                                 if(! $r) {
1146                                         //select someone from this user's contacts by name
1147                                         $r = q("SELECT * FROM `contact` WHERE `name` = '%s' AND `uid` = %d LIMIT 1",
1148                                                         dbesc($newname),
1149                                                         intval($profile_uid)
1150                                         );
1151                                 }
1152
1153                                 if(! $r) {
1154                                         //select someone by attag or nick and the name passed in
1155                                         $r = q("SELECT * FROM `contact` WHERE `attag` = '%s' OR `nick` = '%s' AND `uid` = %d ORDER BY `attag` DESC LIMIT 1",
1156                                                         dbesc($name),
1157                                                         dbesc($name),
1158                                                         intval($profile_uid)
1159                                         );
1160                                 }
1161                         }
1162 /*                      } elseif(strstr($name,'_') || strstr($name,' ')) { //no id
1163                                 //get the real name
1164                                 $newname = str_replace('_',' ',$name);
1165                                 //select someone from this user's contacts by name
1166                                 $r = q("SELECT * FROM `contact` WHERE `name` = '%s' AND `uid` = %d LIMIT 1",
1167                                                 dbesc($newname),
1168                                                 intval($profile_uid)
1169                                 );
1170                         } else {
1171                                 //select someone by attag or nick and the name passed in
1172                                 $r = q("SELECT * FROM `contact` WHERE `attag` = '%s' OR `nick` = '%s' AND `uid` = %d ORDER BY `attag` DESC LIMIT 1",
1173                                                 dbesc($name),
1174                                                 dbesc($name),
1175                                                 intval($profile_uid)
1176                                 );
1177                         }*/
1178                         //$r is set, if someone could be selected
1179                         if(count($r)) {
1180                                 $profile = $r[0]['url'];
1181                                 //set newname to nick, find alias
1182                                 if(($r[0]['network'] === NETWORK_OSTATUS) OR ($r[0]['network'] === NETWORK_TWITTER)
1183                                         OR ($r[0]['network'] === NETWORK_STATUSNET) OR ($r[0]['network'] === NETWORK_APPNET)) {
1184                                         $newname = $r[0]['nick'];
1185                                         $stat = true;
1186                                         if($r[0]['alias'])
1187                                                 $alias = $r[0]['alias'];
1188                                 }
1189                                 else
1190                                         $newname = $r[0]['name'];
1191                                 //add person's id to $inform
1192                                 if(strlen($inform))
1193                                         $inform .= ',';
1194                                 $inform .= 'cid:' . $r[0]['id'];
1195                         }
1196                 }
1197                 //if there is an url for this persons profile
1198                 if(isset($profile)) {
1199                         $replaced = true;
1200                         //create profile link
1201                         $profile = str_replace(',','%2c',$profile);
1202                         $newtag = '@[url=' . $profile . ']' . $newname  . '[/url]';
1203                         $body = str_replace('@' . $name, $newtag, $body);
1204                         //append tag to str_tags
1205                         if(! stristr($str_tags,$newtag)) {
1206                                 if(strlen($str_tags))
1207                                         $str_tags .= ',';
1208                                 $str_tags .= $newtag;
1209                         }
1210
1211                         // Status.Net seems to require the numeric ID URL in a mention if the person isn't
1212                         // subscribed to you. But the nickname URL is OK if they are. Grrr. We'll tag both.
1213
1214                         if(strlen($alias)) {
1215                                 $newtag = '@[url=' . $alias . ']' . $newname    . '[/url]';
1216                                 if(! stristr($str_tags,$newtag)) {
1217                                         if(strlen($str_tags))
1218                                                 $str_tags .= ',';
1219                                         $str_tags .= $newtag;
1220                                 }
1221                         }
1222                 }
1223         }
1224
1225         return array('replaced' => $replaced, 'contact' => $r[0]);
1226 }
1227
1228
1229 function store_diaspora_comment_sig($datarray, $author, $uprvkey, $parent_item, $post_id) {
1230         // We won't be able to sign Diaspora comments for authenticated visitors - we don't have their private key
1231
1232         $enabled = intval(get_config('system','diaspora_enabled'));
1233         if(! $enabled) {
1234                 logger('mod_item: diaspora support disabled, not storing comment signature', LOGGER_DEBUG);
1235                 return;
1236         }
1237
1238
1239         logger('mod_item: storing diaspora comment signature');
1240
1241         require_once('include/bb2diaspora.php');
1242         $signed_body = html_entity_decode(bb2diaspora($datarray['body']));
1243
1244         // Only works for NETWORK_DFRN
1245         $contact_baseurl_start = strpos($author['url'],'://') + 3;
1246         $contact_baseurl_length = strpos($author['url'],'/profile') - $contact_baseurl_start;
1247         $contact_baseurl = substr($author['url'], $contact_baseurl_start, $contact_baseurl_length);
1248         $diaspora_handle = $author['nick'] . '@' . $contact_baseurl;
1249
1250         $signed_text = $datarray['guid'] . ';' . $parent_item['guid'] . ';' . $signed_body . ';' . $diaspora_handle;
1251
1252         if( $uprvkey !== false )
1253                 $authorsig = base64_encode(rsa_sign($signed_text,$uprvkey,'sha256'));
1254         else
1255                 $authorsig = '';
1256
1257         q("insert into sign (`iid`,`signed_text`,`signature`,`signer`) values (%d,'%s','%s','%s') ",
1258                 intval($post_id),
1259                 dbesc($signed_text),
1260                 dbesc(base64_encode($authorsig)),
1261                 dbesc($diaspora_handle)
1262         );
1263
1264         return;
1265 }