mod/item.php

   1 <?php
   2
   3 // This is the POST destination for most all locally posted
   4 // text stuff. This function handles status, wall-to-wall status,
   5 // local comments, and remote coments - that are posted on this site
   6 // (as opposed to being delivered in a feed).
   7 // All of these become an "item" which is our basic unit of
   8 // information.
   9
  10 function item_post(&$a) {
  11
  12         if((! local_user()) && (! remote_user()))
  13                 return;
  14
  15         require_once('include/security.php');
  16
  17         $uid = local_user();
  18
  19         $parent = ((x($_POST,'parent')) ? intval($_POST['parent']) : 0);
  20
  21         $parent_item = null;
  22
  23         if($parent) {
  24                 $r = q("SELECT * FROM `item` WHERE `id` = %d LIMIT 1",
  25                         intval($parent)
  26                 );
  27                 if(! count($r)) {
  28                         notice( t('Unable to locate original post.') . EOL);
  29                         goaway($a->get_baseurl() . "/" . $_POST['return'] );
  30                 }
  31                 $parent_item = $r[0];
  32         }
  33
  34         $profile_uid = ((x($_POST,'profile_uid')) ? intval($_POST['profile_uid']) : 0);
  35
  36
  37         if(! can_write_wall($a,$profile_uid)) {
  38                 notice( t('Permission denied.') . EOL) ;
  39                 return;
  40         }
  41
  42         $user = null;
  43
  44         $r = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1",
  45                 intval($profile_uid)
  46         );
  47         if(count($r))
  48                 $user = $r[0];
  49
  50
  51         $str_group_allow   = perms2str($_POST['group_allow']);
  52         $str_contact_allow = perms2str($_POST['contact_allow']);
  53         $str_group_deny    = perms2str($_POST['group_deny']);
  54         $str_contact_deny  = perms2str($_POST['contact_deny']);
  55
  56         $private = ((strlen($str_group_allow) || strlen($str_contact_allow) || strlen($str_group_deny) || strlen($str_contact_deny)) ? 1 : 0);
  57
  58         if(($parent_item) &&
  59                 (($parent_item['private'])
  60                         || strlen($parent_item['allow_cid'])
  61                         || strlen($parent_item['allow_gid'])
  62                         || strlen($parent_item['deny_cid'])
  63                         || strlen($parent_item['deny_gid'])
  64                 )
  65         ) {
  66                 $private = 1;
  67         }
  68
  69         $title             = notags(trim($_POST['title']));
  70         $body              = escape_tags(trim($_POST['body']));
  71         $location          = notags(trim($_POST['location']));
  72         $coord             = notags(trim($_POST['coord']));
  73         $verb              = notags(trim($_POST['verb']));
  74
  75         if(! strlen($body)) {
  76                 notice( t('Empty post discarded.') . EOL );
  77                 goaway($a->get_baseurl() . "/" . $_POST['return'] );
  78
  79         }
  80
  81         // get contact info for poster
  82
  83         $author = null;
  84         $self   = false;
  85
  86         if(($_SESSION['uid']) && ($_SESSION['uid'] == $profile_uid)) {
  87                 $self = true;
  88                 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 1 LIMIT 1",
  89                         intval($_SESSION['uid'])
  90                 );
  91         }
  92         else {
  93                 if((x($_SESSION,'visitor_id')) && (intval($_SESSION['visitor_id']))) {
  94                         $r = q("SELECT * FROM `contact` WHERE `id` = %d LIMIT 1",
  95                                 intval($_SESSION['visitor_id'])
  96                         );
  97                 }
  98         }
  99
 100         if(count($r)) {
 101                 $author = $r[0];
 102                 $contact_id = $author['id'];
 103         }
 104
 105         // get contact info for owner
 106
 107         if($profile_uid == $_SESSION['uid']) {
 108                 $contact_record = $author;
 109         }
 110         else {
 111                 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 1 LIMIT 1",
 112                         intval($profile_uid)
 113                 );
 114                 if(count($r))
 115                         $contact_record = $r[0];
 116         }
 117
 118         $post_type = notags(trim($_POST['type']));
 119
 120         if($post_type === 'net-comment') {
 121                 if($parent_item !== null) {
 122                         if($parent_item['type'] === 'remote') {
 123                                 $post_type = 'remote-comment';
 124                         }
 125                         else {
 126                                 $post_type = 'wall-comment';
 127                         }
 128                 }
 129         }
 130
 131
 132         /**
 133          *
 134          * If a photo was uploaded into the message using the ajax uploader,
 135          * it can be seen by anybody. Set the permissions to match the message.
 136          * Ideally this should be done when the photo was uploaded, but the permissions
 137          * may not have been set at that time, and passing the permission arrays via
 138          * javascript to the ajax upload is going to be a challenge.
 139          * This is a compromise. Granted there is a window of time when the photo
 140          * is public. You are welcome to suggest other ways to fix this.
 141          *
 142          */
 143
 144         $match = null;
 145
 146         if($private) {
 147                 if(preg_match_all("/\[img\](.+?)\[\/img\]/",$body,$match)) {
 148                         $images = $match[1];
 149                         if(count($images)) {
 150                                 foreach($images as $image) {
 151                                         if(! stristr($image,$a->get_baseurl() . '/photo/'))
 152                                                 continue;
 153                                         $image_uri = substr($image,strrpos($image,'/') + 1);
 154                                         $image_uri = substr($image_uri,0, strpos($image_uri,'-'));
 155                                         $r = q("UPDATE `photo` SET `allow_cid` = '%s', `allow_gid` = '%s', `deny_cid` = '%s', `deny_gid` = '%s'
 156                                                 WHERE `resource-id` = '%s' AND `album` = '%s' ",
 157                                                 dbesc($str_contact_allow),
 158                                                 dbesc($str_group_allow),
 159                                                 dbesc($str_contact_deny),
 160                                                 dbesc($str_group_deny),
 161                                                 dbesc($image_uri),
 162                                                 dbesc( t('Wall Photos'))
 163                                         );
 164
 165                                 }
 166                         }
 167                 }
 168         }
 169
 170
 171         /**
 172          * Look for any tags and linkify them
 173          */
 174
 175         $str_tags = '';
 176         $inform   = '';
 177
 178         $tags = get_tags($body);
 179
 180
 181         if(count($tags)) {
 182                 foreach($tags as $tag) {
 183                         if(strpos($tag,'#') === 0) {
 184                                 $basetag = str_replace('_',' ',substr($tag,1));
 185                                 $body = str_replace($tag,'#[url=' . $a->get_baseurl() . '/search?search=' . rawurlencode($basetag) . ']' . $basetag . '[/url]',$body);
 186                                 if(strlen($str_tags))
 187                                         $str_tags .= ',';
 188                                 $str_tags .= '#[url=' . $a->get_baseurl() . '/search?search=' . rawurlencode($basetag) . ']' . $basetag . '[/url]';
 189                                 continue;
 190                         }
 191                         if(strpos($tag,'@') === 0) {
 192                                 $name = substr($tag,1);
 193                                 if((strpos($name,'@')) || (strpos($name,'http://'))) {
 194                                         $newname = $name;
 195                                         $links = @lrdd($name);
 196                                         if(count($links)) {
 197                                                 foreach($links as $link) {
 198                                                         if($link['@attributes']['rel'] === 'http://webfinger.net/rel/profile-page')
 199                                         $profile = $link['@attributes']['href'];
 200                                                         if($link['@attributes']['rel'] === 'salmon') {
 201                                                                 if(strlen($inform))
 202                                                                         $inform .= ',';
 203                                         $inform .= 'url:' . str_replace(',','%2c',$link['@attributes']['href']);
 204                                                         }
 205                                                 }
 206                                         }
 207                                 }
 208                                 else {
 209                                         $newname = $name;
 210                                         if(strstr($name,'_')) {
 211                                                 $newname = str_replace('_',' ',$name);
 212                                                 $r = q("SELECT * FROM `contact` WHERE `name` = '%s' AND `uid` = %d LIMIT 1",
 213                                                         dbesc($newname),
 214                                                         intval($profile_uid)
 215                                                 );
 216                                         }
 217                                         else {
 218                                                 $r = q("SELECT * FROM `contact` WHERE `nick` = '%s' AND `uid` = %d LIMIT 1",
 219                                                         dbesc($name),
 220                                                         intval($profile_uid)
 221                                                 );
 222                                         }
 223                                         if(count($r)) {
 224                                                 $profile = $r[0]['url'];
 225                                                 $newname = $r[0]['name'];
 226                                                 if(strlen($inform))
 227                                                         $inform .= ',';
 228                                                 $inform .= 'cid:' . $r[0]['id'];
 229                                         }
 230                                 }
 231                                 if($profile) {
 232                                         $body = str_replace($name,'[url=' . $profile . ']' . $newname   . '[/url]', $body);
 233                                         $profile = str_replace(',','%2c',$profile);
 234                                         if(strlen($str_tags))
 235                                                 $str_tags .= ',';
 236                                         $str_tags .= '@[url=' . $profile . ']' . $newname       . '[/url]';
 237                                 }
 238                         }
 239                 }
 240         }
 241
 242         $wall = 0;
 243         if($post_type === 'wall' || $post_type === 'wall-comment')
 244                 $wall = 1;
 245
 246         if(! strlen($verb))
 247                 $verb = ACTIVITY_POST ;
 248
 249         $gravity = (($parent) ? 6 : 0 );
 250
 251         $notify_type = (($parent) ? 'comment-new' : 'wall-new' );
 252
 253         $uri = item_new_uri($a->get_hostname(),$profile_uid);
 254
 255         $datarray = array();
 256         $datarray['uid']           = $profile_uid;
 257         $datarray['type']          = $post_type;
 258         $datarray['wall']          = $wall;
 259         $datarray['gravity']       = $gravity;
 260         $datarray['contact-id']    = $contact_id;
 261         $datarray['owner-name']    = $contact_record['name'];
 262         $datarray['owner-link']    = $contact_record['url'];
 263         $datarray['owner-avatar']  = $contact_record['thumb'];
 264         $datarray['author-name']   = $author['name'];
 265         $datarray['author-link']   = $author['url'];
 266         $datarray['author-avatar'] = $author['thumb'];
 267         $datarray['created']       = datetime_convert();
 268         $datarray['edited']        = datetime_convert();
 269         $datarray['changed']       = datetime_convert();
 270         $datarray['uri']           = $uri;
 271         $datarray['title']         = $title;
 272         $datarray['body']          = $body;
 273         $datarray['location']      = $location;
 274         $datarray['coord']         = $coord;
 275         $datarray['tag']           = $str_tags;
 276         $datarray['inform']        = $inform;
 277         $datarray['verb']          = $verb;
 278         $datarray['allow_cid']     = $str_contact_allow;
 279         $datarray['allow_gid']     = $str_group_allow;
 280         $datarray['deny_cid']      = $str_contact_deny;
 281         $datarray['deny_gid']      = $str_group_deny;
 282         $datarray['private']       = $private;
 283
 284         /**
 285          * These fields are for the convenience of plugins...
 286          * 'self' if true indicates the owner is posting on their own wall
 287          * If parent is 0 it is a top-level post.
 288          */
 289
 290         $datarray['parent']        = $parent;
 291         $datarray['self']          = $self;
 292
 293
 294         call_hooks('post_local',$datarray);
 295
 296         $r = q("INSERT INTO `item` (`uid`,`type`,`wall`,`gravity`,`contact-id`,`owner-name`,`owner-link`,`owner-avatar`,
 297                 `author-name`, `author-link`, `author-avatar`, `created`, `edited`, `changed`, `uri`, `title`, `body`, `location`, `coord`,
 298                 `tag`, `inform`, `verb`, `allow_cid`, `allow_gid`, `deny_cid`, `deny_gid`, `private` )
 299                 VALUES( %d, '%s', %d, %d, %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', %d )",
 300                 intval($datarray['uid']),
 301                 dbesc($datarray['type']),
 302                 intval($datarray['wall']),
 303                 intval($datarray['gravity']),
 304                 intval($datarray['contact-id']),
 305                 dbesc($datarray['owner-name']),
 306                 dbesc($datarray['owner-link']),
 307                 dbesc($datarray['owner-avatar']),
 308                 dbesc($datarray['author-name']),
 309                 dbesc($datarray['author-link']),
 310                 dbesc($datarray['author-avatar']),
 311                 dbesc($datarray['created']),
 312                 dbesc($datarray['edited']),
 313                 dbesc($datarray['changed']),
 314                 dbesc($datarray['uri']),
 315                 dbesc($datarray['title']),
 316                 dbesc($datarray['body']),
 317                 dbesc($datarray['location']),
 318                 dbesc($datarray['coord']),
 319                 dbesc($datarray['tag']),
 320                 dbesc($datarray['inform']),
 321                 dbesc($datarray['verb']),
 322                 dbesc($datarray['allow_cid']),
 323                 dbesc($datarray['allow_gid']),
 324                 dbesc($datarray['deny_cid']),
 325                 dbesc($datarray['deny_gid']),
 326                 intval($datarray['private'])
 327         );
 328
 329         $r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' LIMIT 1",
 330                 dbesc($datarray['uri']));
 331         if(count($r)) {
 332                 $post_id = $r[0]['id'];
 333                 logger('mod_item: saved item ' . $post_id);
 334
 335                 if($parent) {
 336
 337                         // This item is the last leaf and gets the comment box, clear any ancestors
 338                         $r = q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent` = %d ",
 339                                 dbesc(datetime_convert()),
 340                                 intval($parent)
 341                         );
 342
 343                         // Inherit ACL's from the parent item.
 344
 345                         $r = q("UPDATE `item` SET `allow_cid` = '%s', `allow_gid` = '%s', `deny_cid` = '%s', `deny_gid` = '%s', `private` = %d
 346                                 WHERE `id` = %d LIMIT 1",
 347                                 dbesc($parent_item['allow_cid']),
 348                                 dbesc($parent_item['allow_gid']),
 349                                 dbesc($parent_item['deny_cid']),
 350                                 dbesc($parent_item['deny_gid']),
 351                                 intval($parent_item['private']),
 352                                 intval($post_id)
 353                         );
 354
 355                         // Send a notification email to the conversation owner, unless the owner is me and I wrote this item
 356                         if(($user['notify-flags'] & NOTIFY_COMMENT) && ($contact_record != $author)) {
 357                                 require_once('bbcode.php');
 358                                 $from = $author['name'];
 359                                 $tpl = load_view_file('view/cmnt_received_eml.tpl');
 360                                 $email_tpl = replace_macros($tpl, array(
 361                                         '$sitename' => $a->config['sitename'],
 362                                         '$siteurl' =>  $a->get_baseurl(),
 363                                         '$username' => $user['username'],
 364                                         '$email' => $user['email'],
 365                                         '$from' => $from,
 366                                         '$display' => $a->get_baseurl() . '/display/' . $user['nickname'] . '/' . $post_id,
 367                                         '$body' => strip_tags(bbcode($datarray['body']))
 368                                 ));
 369
 370                                 $res = mail($user['email'], $from . t(" commented on your item at ") . $a->config['sitename'],
 371                                         $email_tpl,t("From: Administrator@") . $a->get_hostname() );
 372                         }
 373                 }
 374                 else {
 375                         $parent = $post_id;
 376
 377                         // let me know if somebody did a wall-to-wall post on my profile
 378
 379                         if(($user['notify-flags'] & NOTIFY_WALL) && ($contact_record != $author)) {
 380                                 require_once('bbcode.php');
 381                                 $from = $author['name'];
 382                                 $tpl = load_view_file('view/wall_received_eml.tpl');
 383                                 $email_tpl = replace_macros($tpl, array(
 384                                         '$sitename' => $a->config['sitename'],
 385                                         '$siteurl' =>  $a->get_baseurl(),
 386                                         '$username' => $user['username'],
 387                                         '$email' => $user['email'],
 388                                         '$from' => $from,
 389                                         '$display' => $a->get_baseurl() . '/display/' . $user['nickname'] . '/' . $post_id,
 390                                         '$body' => strip_tags(bbcode($datarray['body']))
 391                                 ));
 392
 393                                 $res = mail($user['email'], $from . t(" posted on your profile wall at ") . $a->config['sitename'],
 394                                         $email_tpl,t("From: Administrator@") . $a->get_hostname() );
 395                         }
 396                 }
 397
 398                 $r = q("UPDATE `item` SET `parent` = %d, `parent-uri` = '%s', `changed` = '%s', `last-child` = 1, `visible` = 1
 399                         WHERE `id` = %d LIMIT 1",
 400                         intval($parent),
 401                         dbesc(($parent == $post_id) ? $uri : $parent_item['uri']),
 402                         dbesc(datetime_convert()),
 403                         intval($post_id)
 404                 );
 405
 406                 // photo comments turn the corresponding item visible to the profile wall
 407                 // This way we don't see every picture in your new photo album posted to your wall at once.
 408                 // They will show up as people comment on them.
 409
 410                 if(! $parent_item['visible']) {
 411                         $r = q("UPDATE `item` SET `visible` = 1 WHERE `id` = %d LIMIT 1",
 412                                 intval($parent_item['id'])
 413                         );
 414                 }
 415         }
 416
 417         $php_path = ((strlen($a->config['php_path'])) ? $a->config['php_path'] : 'php');
 418
 419         logger('mod_item: notifier invoked: ' . "\"$php_path\" \"include/notifier.php\" \"$notify_type\" \"$post_id\" &");
 420
 421         proc_close(proc_open("\"$php_path\" \"include/notifier.php\" \"$notify_type\" \"$post_id\" &",
 422                 array(),$foo));
 423
 424         $datarray['id'] = $post_id;
 425
 426         call_hooks('post_local_end', $datarray);
 427
 428
 429         goaway($a->get_baseurl() . "/" . $_POST['return'] );
 430         return; // NOTREACHED
 431 }
 432
 433
 434
 435
 436
 437 function item_content(&$a) {
 438
 439         if((! local_user()) && (! remote_user()))
 440                 return;
 441
 442         require_once('include/security.php');
 443
 444         $uid = $_SESSION['uid'];
 445
 446         if(($a->argc == 3) && ($a->argv[1] === 'drop') && intval($a->argv[2])) {
 447
 448                 // locate item to be deleted
 449
 450                 $r = q("SELECT * FROM `item` WHERE `id` = %d LIMIT 1",
 451                         intval($a->argv[2])
 452                 );
 453
 454                 if(! count($r)) {
 455                         notice( t('Item not found.') . EOL);
 456                         goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
 457                 }
 458                 $item = $r[0];
 459
 460                 // check if logged in user is either the author or owner of this item
 461
 462                 if(($_SESSION['visitor_id'] == $item['contact-id']) || ($_SESSION['uid'] == $item['uid'])) {
 463
 464                         // delete the item
 465
 466                         $r = q("UPDATE `item` SET `deleted` = 1, `body` = '', `edited` = '%s', `changed` = '%s' WHERE `id` = %d LIMIT 1",
 467                                 dbesc(datetime_convert()),
 468                                 dbesc(datetime_convert()),
 469                                 intval($item['id'])
 470                         );
 471
 472                         // If item is a link to a photo resource, nuke all the associated photos
 473                         // (visitors will not have photo resources)
 474                         // This only applies to photos uploaded from the photos page. Photos inserted into a post do not
 475                         // generate a resource-id and therefore aren't intimately linked to the item.
 476
 477                         if(strlen($item['resource-id'])) {
 478                                 $q("DELETE FROM `photo` WHERE `resource-id` = '%s' AND `uid` = %d ",
 479                                         dbesc($item['resource-id']),
 480                                         intval($item['uid'])
 481                                 );
 482                                 // ignore the result
 483                         }
 484
 485                         // If it's the parent of a comment thread, kill all the kids
 486
 487                         if($item['uri'] == $item['parent-uri']) {
 488                                 $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s', `body` = ''
 489                                         WHERE `parent-uri` = '%s' AND `uid` = %d ",
 490                                         dbesc(datetime_convert()),
 491                                         dbesc(datetime_convert()),
 492                                         dbesc($item['parent-uri']),
 493                                         intval($item['uid'])
 494                                 );
 495                                 // ignore the result
 496                         }
 497                         else {
 498                                 // ensure that last-child is set in case the comment that had it just got wiped.
 499                                 q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d ",
 500                                         dbesc(datetime_convert()),
 501                                         dbesc($item['parent-uri']),
 502                                         intval($item['uid'])
 503                                 );
 504                                 // who is the last child now?
 505                                 $r = q("SELECT `id` FROM `item` WHERE `parent-uri` = '%s' AND `type` != 'activity' AND `deleted` = 0 AND `uid` = %d ORDER BY `edited` DESC LIMIT 1",
 506                                         dbesc($item['parent-uri']),
 507                                         intval($item['uid'])
 508                                 );
 509                                 if(count($r)) {
 510                                         q("UPDATE `item` SET `last-child` = 1 WHERE `id` = %d LIMIT 1",
 511                                                 intval($r[0]['id'])
 512                                         );
 513                                 }
 514                         }
 515                         $drop_id = intval($item['id']);
 516                         $php_path = ((strlen($a->config['php_path'])) ? $a->config['php_path'] : 'php');
 517
 518                         // send the notification upstream/downstream as the case may be
 519
 520                         proc_close(proc_open("\"$php_path\" \"include/notifier.php\" \"drop\" \"$drop_id\" &",
 521                                 array(), $foo));
 522
 523                         goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
 524                         return; //NOTREACHED
 525                 }
 526                 else {
 527                         notice( t('Permission denied.') . EOL);
 528                         goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
 529                         //NOTREACHED
 530                 }
 531         }
 532 }