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  * All of these become an "item" which is our basic unit of
  10  * information.
  11  * Posts that originate externally or do not fall into the above
  12  * posting categories go through item_store() instead of this function.
  13  *
  14  */
  15
  16 function item_post(&$a) {
  17
  18         if((! local_user()) && (! remote_user()))
  19                 return;
  20
  21         require_once('include/security.php');
  22
  23         $uid = local_user();
  24
  25         call_hooks('post_local_start', $_POST);
  26
  27         $parent = ((x($_POST,'parent')) ? intval($_POST['parent']) : 0);
  28
  29         $parent_item = null;
  30         $parent_contact = null;
  31
  32         if($parent) {
  33                 $r = q("SELECT * FROM `item` WHERE `id` = %d LIMIT 1",
  34                         intval($parent)
  35                 );
  36                 if(! count($r)) {
  37                         notice( t('Unable to locate original post.') . EOL);
  38                         if(x($_POST,'return'))
  39                                 goaway($a->get_baseurl() . "/" . $_POST['return'] );
  40                         killme();
  41                 }
  42                 $parent_item = $r[0];
  43                 if($parent_item['contact-id'] && $uid) {
  44                         $r = q("SELECT * FROM `contact` WHERE `id` = %d AND `uid` = %d LIMIT 1",
  45                                 intval($parent_item['contact-id']),
  46                                 intval($uid)
  47                         );
  48                         if(count($r))
  49                                 $parent_contact = $r[0];
  50                 }
  51         }
  52
  53         $profile_uid = ((x($_POST,'profile_uid')) ? intval($_POST['profile_uid']) : 0);
  54         $post_id = ((x($_POST['post_id'])) ? intval($_POST['post_id']) : 0);
  55
  56         if(! can_write_wall($a,$profile_uid)) {
  57                 notice( t('Permission denied.') . EOL) ;
  58                 if(x($_POST,'return'))
  59                         goaway($a->get_baseurl() . "/" . $_POST['return'] );
  60                 killme();
  61         }
  62
  63         $user = null;
  64
  65         $r = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1",
  66                 intval($profile_uid)
  67         );
  68         if(count($r))
  69                 $user = $r[0];
  70
  71
  72         $str_group_allow   = perms2str($_POST['group_allow']);
  73         $str_contact_allow = perms2str($_POST['contact_allow']);
  74         $str_group_deny    = perms2str($_POST['group_deny']);
  75         $str_contact_deny  = perms2str($_POST['contact_deny']);
  76
  77         $private = ((strlen($str_group_allow) || strlen($str_contact_allow) || strlen($str_group_deny) || strlen($str_contact_deny)) ? 1 : 0);
  78
  79         if(($parent_item) &&
  80                 (($parent_item['private'])
  81                         || strlen($parent_item['allow_cid'])
  82                         || strlen($parent_item['allow_gid'])
  83                         || strlen($parent_item['deny_cid'])
  84                         || strlen($parent_item['deny_gid'])
  85                 )
  86         ) {
  87                 $private = 1;
  88         }
  89
  90         $title             = notags(trim($_POST['title']));
  91         $body              = escape_tags(trim($_POST['body']));
  92         $location          = notags(trim($_POST['location']));
  93         $coord             = notags(trim($_POST['coord']));
  94         $verb              = notags(trim($_POST['verb']));
  95         $emailcc           = notags(trim($_POST['emailcc']));
  96
  97         if(! strlen($body)) {
  98                 notice( t('Empty post discarded.') . EOL );
  99                 if(x($_POST,'return'))
 100                         goaway($a->get_baseurl() . "/" . $_POST['return'] );
 101                 killme();
 102         }
 103
 104         // get contact info for poster
 105
 106         $author = null;
 107         $self   = false;
 108
 109         if(($_SESSION['uid']) && ($_SESSION['uid'] == $profile_uid)) {
 110                 $self = true;
 111                 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 1 LIMIT 1",
 112                         intval($_SESSION['uid'])
 113                 );
 114         }
 115         else {
 116                 if((x($_SESSION,'visitor_id')) && (intval($_SESSION['visitor_id']))) {
 117                         $r = q("SELECT * FROM `contact` WHERE `id` = %d LIMIT 1",
 118                                 intval($_SESSION['visitor_id'])
 119                         );
 120                 }
 121         }
 122
 123         if(count($r)) {
 124                 $author = $r[0];
 125                 $contact_id = $author['id'];
 126         }
 127
 128         // get contact info for owner
 129
 130         if($profile_uid == $_SESSION['uid']) {
 131                 $contact_record = $author;
 132         }
 133         else {
 134                 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 1 LIMIT 1",
 135                         intval($profile_uid)
 136                 );
 137                 if(count($r))
 138                         $contact_record = $r[0];
 139         }
 140
 141         $post_type = notags(trim($_POST['type']));
 142
 143         if($post_type === 'net-comment') {
 144                 if($parent_item !== null) {
 145                         if($parent_item['type'] === 'remote') {
 146                                 $post_type = 'remote-comment';
 147                         }
 148                         else {
 149                                 $post_type = 'wall-comment';
 150                         }
 151                 }
 152         }
 153
 154         // is this an edited post?
 155
 156         $orig_post = null;
 157
 158         if($post_id) {
 159                 $i = q("SELECT * FROM `item` WHERE `uid` = %d AND `id` = %d LIMIT 1",
 160                         intval($profile_uid),
 161                         intval($post_id)
 162                 );
 163                 if(! count($i))
 164                         killme();
 165                 $orig_post = $i[0];
 166         }
 167
 168         if($orig_post) {
 169                 $str_group_allow   = $orig_post['allow_gid'];
 170                 $str_contact_allow = $orig_post['allow_cid'];
 171                 $str_group_deny    = $orig_post['deny_gid'];
 172                 $str_contact_deny  = $orig_post['deny_cid'];
 173                 $private           = $orig_post['private'];
 174                 $title             = $orig_post['title'];
 175                 $location          = $orig_post['location'];
 176                 $coord             = $orig_post['coord'];
 177                 $verb              = $orig_post['verb'];
 178                 $emailcc           = $orig_post['emailcc'];
 179
 180                 $body              = escape_tags(trim($_POST['body']));
 181         }
 182
 183
 184         /**
 185          *
 186          * When a photo was uploaded into the message using the (profile wall) ajax
 187          * uploader, The permissions are initially set to disallow anybody but the
 188          * owner from seeing it. This is because the permissions may not yet have been
 189          * set for the post. If it's private, the photo permissions should be set
 190          * appropriately. But we didn't know the final permissions on the post until
 191          * now. So now we'll look for links of uploaded messages that are in the
 192          * post and set them to the same permissions as the post itself.
 193          *
 194          */
 195
 196         $match = null;
 197
 198         if(preg_match_all("/\[img\](.+?)\[\/img\]/",$body,$match)) {
 199                 $images = $match[1];
 200                 if(count($images)) {
 201                         foreach($images as $image) {
 202                                 if(! stristr($image,$a->get_baseurl() . '/photo/'))
 203                                         continue;
 204                                 $image_uri = substr($image,strrpos($image,'/') + 1);
 205                                 $image_uri = substr($image_uri,0, strpos($image_uri,'-'));
 206                                 $r = q("UPDATE `photo` SET `allow_cid` = '%s', `allow_gid` = '%s', `deny_cid` = '%s', `deny_gid` = '%s'
 207                                         WHERE `resource-id` = '%s' AND `album` = '%s' ",
 208                                         dbesc($str_contact_allow),
 209                                         dbesc($str_group_allow),
 210                                         dbesc($str_contact_deny),
 211                                         dbesc($str_group_deny),
 212                                         dbesc($image_uri),
 213                                         dbesc( t('Wall Photos'))
 214                                 );
 215
 216                         }
 217                 }
 218         }
 219
 220         /**
 221          * Fold multi-line [code] sequences
 222          */
 223
 224         $body = preg_replace('/\[\/code\]\s*\[code\]/m',"\n",$body);
 225
 226         /**
 227          * Look for any tags and linkify them
 228          */
 229
 230         $str_tags = '';
 231         $inform   = '';
 232
 233
 234         $tags = get_tags($body);
 235
 236         if(($parent_contact) && ($parent_contact['network'] === 'stat') && ($parent_contact['nick']) && (! in_array('@' . $parent_contact['nick'],$tags))) {
 237                 $body = '@' . $parent_contact['nick'] . ' ' . $body;
 238                 $tags[] = '@' . $parent_contact['nick'];
 239         }
 240
 241         if(count($tags)) {
 242                 foreach($tags as $tag) {
 243                         if(strpos($tag,'#') === 0) {
 244                                 if(strpos($tag,'[url='))
 245                                         continue;
 246                                 $basetag = str_replace('_',' ',substr($tag,1));
 247                                 $body = str_replace($tag,'#[url=' . $a->get_baseurl() . '/search?search=' . rawurlencode($basetag) . ']' . $basetag . '[/url]',$body);
 248                                 if(strlen($str_tags))
 249                                         $str_tags .= ',';
 250                                 $str_tags .= '#[url=' . $a->get_baseurl() . '/search?search=' . rawurlencode($basetag) . ']' . $basetag . '[/url]';
 251                                 continue;
 252                         }
 253                         if(strpos($tag,'@') === 0) {
 254                                 if(strpos($tag,'[url='))
 255                                         continue;
 256                                 $stat = false;
 257                                 $name = substr($tag,1);
 258                                 if((strpos($name,'@')) || (strpos($name,'http://'))) {
 259                                         $newname = $name;
 260                                         $links = @lrdd($name);
 261                                         if(count($links)) {
 262                                                 foreach($links as $link) {
 263                                                         if($link['@attributes']['rel'] === 'http://webfinger.net/rel/profile-page')
 264                                         $profile = $link['@attributes']['href'];
 265                                                         if($link['@attributes']['rel'] === 'salmon') {
 266                                                                 if(strlen($inform))
 267                                                                         $inform .= ',';
 268                                         $inform .= 'url:' . str_replace(',','%2c',$link['@attributes']['href']);
 269                                                         }
 270                                                 }
 271                                         }
 272                                 }
 273                                 else {
 274                                         $newname = $name;
 275                                         $alias = '';
 276                                         if(strstr($name,'_')) {
 277                                                 $newname = str_replace('_',' ',$name);
 278                                                 $r = q("SELECT * FROM `contact` WHERE `name` = '%s' AND `uid` = %d LIMIT 1",
 279                                                         dbesc($newname),
 280                                                         intval($profile_uid)
 281                                                 );
 282                                         }
 283                                         else {
 284                                                 $r = q("SELECT * FROM `contact` WHERE `nick` = '%s' AND `uid` = %d LIMIT 1",
 285                                                         dbesc($name),
 286                                                         intval($profile_uid)
 287                                                 );
 288                                         }
 289                                         if(count($r)) {
 290                                                 $profile = $r[0]['url'];
 291                                                 if($r[0]['network'] === 'stat') {
 292                                                         $newname = $r[0]['nick'];
 293                                                         $stat = true;
 294                                                         if($r[0]['alias'])
 295                                                                 $alias = $r[0]['alias'];
 296                                                 }
 297                                                 else
 298                                                         $newname = $r[0]['name'];
 299                                                 if(strlen($inform))
 300                                                         $inform .= ',';
 301                                                 $inform .= 'cid:' . $r[0]['id'];
 302                                         }
 303                                 }
 304                                 if($profile) {
 305                                         $body = str_replace('@' . $name, '@' . '[url=' . $profile . ']' . $newname      . '[/url]', $body);
 306                                         $profile = str_replace(',','%2c',$profile);
 307                                         if(strlen($str_tags))
 308                                                 $str_tags .= ',';
 309                                         $str_tags .= '@[url=' . $profile . ']' . $newname       . '[/url]';
 310
 311                                         // Status.Net seems to require the numeric ID URL in a mention if the person isn't
 312                                         // subscribed to you. But the nickname URL is OK if they are. Grrr. We'll tag both.
 313
 314                                         if(strlen($alias)) {
 315                                                 if(strlen($str_tags))
 316                                                         $str_tags .= ',';
 317                                                 $str_tags .= '@[url=' . $alias . ']' . $newname . '[/url]';
 318                                         }
 319
 320                                 }
 321                         }
 322                 }
 323         }
 324
 325
 326         if($orig_post) {
 327                 $r = q("UPDATE `item` SET `body` = '%s', `edited` = '%s' WHERE `id` = %d AND `uid` = %d LIMIT 1",
 328                         dbesc($body),
 329                         dbesc(datetime_convert()),
 330                         intval($post_id),
 331                         intval($profile_uid)
 332                 );
 333
 334                 proc_run('php', "include/notifier.php", 'edit_post', "$post_id");
 335                 if((x($_POST,'return')) && strlen($_POST['return'])) {
 336                         logger('return: ' . $_POST['return']);
 337                         goaway($a->get_baseurl() . "/" . $_POST['return'] );
 338                 }
 339                 killme();
 340         }
 341
 342         $post_id = 0;
 343         $wall = 0;
 344
 345         if($post_type === 'wall' || $post_type === 'wall-comment')
 346                 $wall = 1;
 347
 348         if(! strlen($verb))
 349                 $verb = ACTIVITY_POST ;
 350
 351         $gravity = (($parent) ? 6 : 0 );
 352
 353         $notify_type = (($parent) ? 'comment-new' : 'wall-new' );
 354
 355         $uri = item_new_uri($a->get_hostname(),$profile_uid);
 356
 357         $datarray = array();
 358         $datarray['uid']           = $profile_uid;
 359         $datarray['type']          = $post_type;
 360         $datarray['wall']          = $wall;
 361         $datarray['gravity']       = $gravity;
 362         $datarray['contact-id']    = $contact_id;
 363         $datarray['owner-name']    = $contact_record['name'];
 364         $datarray['owner-link']    = $contact_record['url'];
 365         $datarray['owner-avatar']  = $contact_record['thumb'];
 366         $datarray['author-name']   = $author['name'];
 367         $datarray['author-link']   = $author['url'];
 368         $datarray['author-avatar'] = $author['thumb'];
 369         $datarray['created']       = datetime_convert();
 370         $datarray['edited']        = datetime_convert();
 371         $datarray['changed']       = datetime_convert();
 372         $datarray['uri']           = $uri;
 373         $datarray['title']         = $title;
 374         $datarray['body']          = $body;
 375         $datarray['location']      = $location;
 376         $datarray['coord']         = $coord;
 377         $datarray['tag']           = $str_tags;
 378         $datarray['inform']        = $inform;
 379         $datarray['verb']          = $verb;
 380         $datarray['allow_cid']     = $str_contact_allow;
 381         $datarray['allow_gid']     = $str_group_allow;
 382         $datarray['deny_cid']      = $str_contact_deny;
 383         $datarray['deny_gid']      = $str_group_deny;
 384         $datarray['private']       = $private;
 385
 386         /**
 387          * These fields are for the convenience of plugins...
 388          * 'self' if true indicates the owner is posting on their own wall
 389          * If parent is 0 it is a top-level post.
 390          */
 391
 392         $datarray['parent']        = $parent;
 393         $datarray['self']          = $self;
 394
 395
 396         call_hooks('post_local',$datarray);
 397
 398         $r = q("INSERT INTO `item` (`uid`,`type`,`wall`,`gravity`,`contact-id`,`owner-name`,`owner-link`,`owner-avatar`,
 399                 `author-name`, `author-link`, `author-avatar`, `created`, `edited`, `changed`, `uri`, `title`, `body`, `location`, `coord`,
 400                 `tag`, `inform`, `verb`, `allow_cid`, `allow_gid`, `deny_cid`, `deny_gid`, `private` )
 401                 VALUES( %d, '%s', %d, %d, %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', %d )",
 402                 intval($datarray['uid']),
 403                 dbesc($datarray['type']),
 404                 intval($datarray['wall']),
 405                 intval($datarray['gravity']),
 406                 intval($datarray['contact-id']),
 407                 dbesc($datarray['owner-name']),
 408                 dbesc($datarray['owner-link']),
 409                 dbesc($datarray['owner-avatar']),
 410                 dbesc($datarray['author-name']),
 411                 dbesc($datarray['author-link']),
 412                 dbesc($datarray['author-avatar']),
 413                 dbesc($datarray['created']),
 414                 dbesc($datarray['edited']),
 415                 dbesc($datarray['changed']),
 416                 dbesc($datarray['uri']),
 417                 dbesc($datarray['title']),
 418                 dbesc($datarray['body']),
 419                 dbesc($datarray['location']),
 420                 dbesc($datarray['coord']),
 421                 dbesc($datarray['tag']),
 422                 dbesc($datarray['inform']),
 423                 dbesc($datarray['verb']),
 424                 dbesc($datarray['allow_cid']),
 425                 dbesc($datarray['allow_gid']),
 426                 dbesc($datarray['deny_cid']),
 427                 dbesc($datarray['deny_gid']),
 428                 intval($datarray['private'])
 429         );
 430
 431         $r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' LIMIT 1",
 432                 dbesc($datarray['uri']));
 433         if(count($r)) {
 434                 $post_id = $r[0]['id'];
 435                 logger('mod_item: saved item ' . $post_id);
 436
 437                 if($parent) {
 438
 439                         // This item is the last leaf and gets the comment box, clear any ancestors
 440                         $r = q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent` = %d ",
 441                                 dbesc(datetime_convert()),
 442                                 intval($parent)
 443                         );
 444
 445                         // Inherit ACL's from the parent item.
 446
 447                         $r = q("UPDATE `item` SET `allow_cid` = '%s', `allow_gid` = '%s', `deny_cid` = '%s', `deny_gid` = '%s', `private` = %d
 448                                 WHERE `id` = %d LIMIT 1",
 449                                 dbesc($parent_item['allow_cid']),
 450                                 dbesc($parent_item['allow_gid']),
 451                                 dbesc($parent_item['deny_cid']),
 452                                 dbesc($parent_item['deny_gid']),
 453                                 intval($parent_item['private']),
 454                                 intval($post_id)
 455                         );
 456
 457                         // Send a notification email to the conversation owner, unless the owner is me and I wrote this item
 458                         if(($user['notify-flags'] & NOTIFY_COMMENT) && ($contact_record != $author)) {
 459                                 require_once('bbcode.php');
 460                                 $from = $author['name'];
 461                                 $tpl = load_view_file('view/cmnt_received_eml.tpl');
 462                                 $email_tpl = replace_macros($tpl, array(
 463                                         '$sitename' => $a->config['sitename'],
 464                                         '$siteurl' =>  $a->get_baseurl(),
 465                                         '$username' => $user['username'],
 466                                         '$email' => $user['email'],
 467                                         '$from' => $from,
 468                                         '$display' => $a->get_baseurl() . '/display/' . $user['nickname'] . '/' . $post_id,
 469                                         '$body' => strip_tags(bbcode($datarray['body']))
 470                                 ));
 471
 472                                 $res = mail($user['email'], $from . t(" commented on your item at ") . $a->config['sitename'],
 473                                         $email_tpl,t("From: Administrator@") . $a->get_hostname() );
 474                         }
 475                 }
 476                 else {
 477                         $parent = $post_id;
 478
 479                         // let me know if somebody did a wall-to-wall post on my profile
 480
 481                         if(($user['notify-flags'] & NOTIFY_WALL) && ($contact_record != $author)) {
 482                                 require_once('bbcode.php');
 483                                 $from = $author['name'];
 484                                 $tpl = load_view_file('view/wall_received_eml.tpl');
 485                                 $email_tpl = replace_macros($tpl, array(
 486                                         '$sitename' => $a->config['sitename'],
 487                                         '$siteurl' =>  $a->get_baseurl(),
 488                                         '$username' => $user['username'],
 489                                         '$email' => $user['email'],
 490                                         '$from' => $from,
 491                                         '$display' => $a->get_baseurl() . '/display/' . $user['nickname'] . '/' . $post_id,
 492                                         '$body' => strip_tags(bbcode($datarray['body']))
 493                                 ));
 494
 495                                 $res = mail($user['email'], $from . t(" posted on your profile wall at ") . $a->config['sitename'],
 496                                         $email_tpl,t("From: Administrator@") . $a->get_hostname() );
 497                         }
 498                 }
 499
 500                 $r = q("UPDATE `item` SET `parent` = %d, `parent-uri` = '%s', `plink` = '%s', `changed` = '%s', `last-child` = 1, `visible` = 1
 501                         WHERE `id` = %d LIMIT 1",
 502                         intval($parent),
 503                         dbesc(($parent == $post_id) ? $uri : $parent_item['uri']),
 504                         dbesc($a->get_baseurl() . '/display/' . $user['nickname'] . '/' . $post_id),
 505                         dbesc(datetime_convert()),
 506                         intval($post_id)
 507                 );
 508
 509                 // photo comments turn the corresponding item visible to the profile wall
 510                 // This way we don't see every picture in your new photo album posted to your wall at once.
 511                 // They will show up as people comment on them.
 512
 513                 if(! $parent_item['visible']) {
 514                         $r = q("UPDATE `item` SET `visible` = 1 WHERE `id` = %d LIMIT 1",
 515                                 intval($parent_item['id'])
 516                         );
 517                 }
 518         }
 519         else {
 520                 logger('mod_item: unable to retrieve post that was just stored.');
 521                 notify( t('System error. Post not saved.'));
 522                 goaway($a->get_baseurl() . "/" . $_POST['return'] );
 523                 // NOTREACHED
 524         }
 525
 526         proc_run('php', "include/notifier.php", $notify_type, "$post_id");
 527
 528         $datarray['id'] = $post_id;
 529
 530         call_hooks('post_local_end', $datarray);
 531
 532         if(strlen($emailcc) && $profile_uid == local_user()) {
 533                 $erecips = explode(',', $emailcc);
 534                 if(count($erecips)) {
 535                         foreach($erecips as $recip) {
 536                                 $addr = trim($recip);
 537                                 if(! strlen($addr))
 538                                         continue;
 539                                 $disclaimer = '<hr />' . t('This message was sent to you by ') . $a->user['username']
 540                                         . t(', a member of the Friendika social network.') . '<br />';
 541                                 $disclaimer .= t('You may visit them online at') . ' '
 542                                         . $a->get_baseurl() . '/profile/' . $a->user['nickname'] . '<br />';
 543                                 $disclaimer .= t('Please contact the sender by replying to this post if you do not wish to receive these messages.') . '<br />';
 544
 545                                 $subject  = '[Friendika]' . ' ' . $a->user['username'] . ' ' . t('posted an update.');
 546                                 $headers  = 'From: ' . $a->user['username'] . ' <' . $a->user['email'] . '>' . "\n";
 547                                 $headers .= 'MIME-Version: 1.0' . "\n";
 548                                 $headers .= 'Content-Type: text/html; charset=UTF-8' . "\n";
 549                                 $headers .= 'Content-Transfer-Encoding: 8bit' . "\n\n";
 550                                 $link = '<a href="' . $a->get_baseurl() . '/profile/' . $a->user['nickname'] . '"><img src="' . $author['thumb'] . '" alt="' . $a->user['username'] . '" /></a><br /><br />';
 551                                 $html    = prepare_body($datarray);
 552                                 $message = '<html><body>' . $link . $html . $disclaimer . '</body></html>';
 553                                 @mail($addr, $subject, $message, $headers);
 554                         }
 555                 }
 556         }
 557
 558         logger('post_complete');
 559         if((x($_POST,'return')) && strlen($_POST['return'])) {
 560                 logger('return: ' . $_POST['return']);
 561                 goaway($a->get_baseurl() . "/" . $_POST['return'] );
 562         }
 563         $json = array('success' => 1);
 564         if(x($_POST,'jsreload') && strlen($_POST['jsreload']))
 565                 $json['reload'] = $a->get_baseurl() . '/' . $_POST['jsreload'];
 566
 567         logger('post_json: ' . print_r($json,true), LOGGER_DEBUG);
 568
 569         echo json_encode($json);
 570         killme();
 571         // NOTREACHED
 572 }
 573
 574
 575
 576
 577
 578 function item_content(&$a) {
 579
 580         if((! local_user()) && (! remote_user()))
 581                 return;
 582
 583         require_once('include/security.php');
 584
 585         $uid = local_user();
 586
 587         if(($a->argc == 3) && ($a->argv[1] === 'drop') && intval($a->argv[2])) {
 588
 589                 // locate item to be deleted
 590
 591                 $r = q("SELECT * FROM `item` WHERE `id` = %d LIMIT 1",
 592                         intval($a->argv[2])
 593                 );
 594
 595                 if(! count($r)) {
 596                         notice( t('Item not found.') . EOL);
 597                         goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
 598                 }
 599                 $item = $r[0];
 600
 601                 // check if logged in user is either the author or owner of this item
 602
 603                 if(($_SESSION['visitor_id'] == $item['contact-id']) || ($_SESSION['uid'] == $item['uid'])) {
 604
 605                         // delete the item
 606
 607                         $r = q("UPDATE `item` SET `deleted` = 1, `body` = '', `edited` = '%s', `changed` = '%s' WHERE `id` = %d LIMIT 1",
 608                                 dbesc(datetime_convert()),
 609                                 dbesc(datetime_convert()),
 610                                 intval($item['id'])
 611                         );
 612
 613                         // If item is a link to a photo resource, nuke all the associated photos
 614                         // (visitors will not have photo resources)
 615                         // This only applies to photos uploaded from the photos page. Photos inserted into a post do not
 616                         // generate a resource-id and therefore aren't intimately linked to the item.
 617
 618                         if(strlen($item['resource-id'])) {
 619                                 q("DELETE FROM `photo` WHERE `resource-id` = '%s' AND `uid` = %d ",
 620                                         dbesc($item['resource-id']),
 621                                         intval($item['uid'])
 622                                 );
 623                                 // ignore the result
 624                         }
 625
 626                         // If it's the parent of a comment thread, kill all the kids
 627
 628                         if($item['uri'] == $item['parent-uri']) {
 629                                 $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s', `body` = ''
 630                                         WHERE `parent-uri` = '%s' AND `uid` = %d ",
 631                                         dbesc(datetime_convert()),
 632                                         dbesc(datetime_convert()),
 633                                         dbesc($item['parent-uri']),
 634                                         intval($item['uid'])
 635                                 );
 636                                 // ignore the result
 637                         }
 638                         else {
 639                                 // ensure that last-child is set in case the comment that had it just got wiped.
 640                                 q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d ",
 641                                         dbesc(datetime_convert()),
 642                                         dbesc($item['parent-uri']),
 643                                         intval($item['uid'])
 644                                 );
 645                                 // who is the last child now?
 646                                 $r = q("SELECT `id` FROM `item` WHERE `parent-uri` = '%s' AND `type` != 'activity' AND `deleted` = 0 AND `uid` = %d ORDER BY `edited` DESC LIMIT 1",
 647                                         dbesc($item['parent-uri']),
 648                                         intval($item['uid'])
 649                                 );
 650                                 if(count($r)) {
 651                                         q("UPDATE `item` SET `last-child` = 1 WHERE `id` = %d LIMIT 1",
 652                                                 intval($r[0]['id'])
 653                                         );
 654                                 }
 655                         }
 656                         $drop_id = intval($item['id']);
 657
 658                         // send the notification upstream/downstream as the case may be
 659
 660                         proc_run('php',"include/notifier.php","drop","$drop_id");
 661
 662                         goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
 663                         //NOTREACHED
 664                 }
 665                 else {
 666                         notice( t('Permission denied.') . EOL);
 667                         goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
 668                         //NOTREACHED
 669                 }
 670         }
 671 }