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