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 = $_SESSION['uid'];
  18
  19
  20         $parent = ((x($_POST,'parent')) ? intval($_POST['parent']) : 0);
  21
  22         $parent_item = null;
  23
  24         if($parent) {
  25                 $r = q("SELECT * FROM `item` WHERE `id` = %d LIMIT 1",
  26                         intval($parent)
  27                 );
  28                 if(! count($r)) {
  29                         notice( t('Unable to locate original post.') . EOL);
  30                         goaway($a->get_baseurl() . "/" . $_POST['return'] );
  31                 }
  32                 $parent_item = $r[0];
  33         }
  34
  35         $profile_uid = ((x($_POST,'profile_uid')) ? intval($_POST['profile_uid']) : 0);
  36
  37
  38         if(! can_write_wall($a,$profile_uid)) {
  39                 notice( t('Permission denied.') . EOL) ;
  40                 return;
  41         }
  42
  43         $user = null;
  44
  45         $r = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1",
  46                 intval($profile_uid)
  47         );
  48         if(count($r))
  49                 $user = $r[0];
  50
  51
  52         $str_group_allow   = perms2str($_POST['group_allow']);
  53         $str_contact_allow = perms2str($_POST['contact_allow']);
  54         $str_group_deny    = perms2str($_POST['group_deny']);
  55         $str_contact_deny  = perms2str($_POST['contact_deny']);
  56
  57         $title             = notags(trim($_POST['title']));
  58         $body              = escape_tags(trim($_POST['body']));
  59         $location          = notags(trim($_POST['location']));
  60         $coord             = notags(trim($_POST['coord']));
  61         $verb              = notags(trim($_POST['verb']));
  62
  63         if(! strlen($body)) {
  64                 notice( t('Empty post discarded.') . EOL );
  65                 goaway($a->get_baseurl() . "/" . $_POST['return'] );
  66
  67         }
  68
  69         // get contact info for poster
  70
  71         $author = null;
  72
  73         if(($_SESSION['uid']) && ($_SESSION['uid'] == $profile_uid)) {
  74                 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 1 LIMIT 1",
  75                         intval($_SESSION['uid'])
  76                 );
  77         }
  78         else {
  79                 if((x($_SESSION,'visitor_id')) && (intval($_SESSION['visitor_id']))) {
  80                         $r = q("SELECT * FROM `contact` WHERE `id` = %d LIMIT 1",
  81                                 intval($_SESSION['visitor_id'])
  82                         );
  83                 }
  84         }
  85
  86         if(count($r)) {
  87                 $author = $r[0];
  88                 $contact_id = $author['id'];
  89         }
  90
  91         // get contact info for owner
  92
  93         if($profile_uid == $_SESSION['uid']) {
  94                 $contact_record = $author;
  95         }
  96         else {
  97                 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 1 LIMIT 1",
  98                         intval($profile_uid)
  99                 );
 100                 if(count($r))
 101                         $contact_record = $r[0];
 102         }
 103
 104         $post_type = notags(trim($_POST['type']));
 105
 106         if($post_type === 'net-comment') {
 107                 if($parent_item !== null) {
 108                         if($parent_item['type'] === 'remote') {
 109                                 $post_type = 'remote-comment';
 110                         }
 111                         else {
 112                                 $post_type = 'wall-comment';
 113                         }
 114                 }
 115         }
 116
 117         $str_tags = '';
 118         $tagged = array();
 119
 120         $tags = get_tags($body);
 121
 122
 123         if($tags) {
 124                 foreach($tags as $tag) {
 125                         if(strpos($tag,'@') === 0) {
 126                                 $name = substr($tag,1);
 127                                 if(strpos($name,'@')) {
 128
 129                                         $links = @webfinger($name);
 130                                         if(count($links)) {
 131                                                 foreach($links as $link) {
 132                                                         if($link['@attributes']['rel'] === 'http://webfinger.net/rel/profile-page')
 133                                         $profile = $link['@attributes']['href'];
 134                                                         if($link['@attributes']['rel'] === 'salmon')
 135                                         $salmon = $link['@attributes']['href'];
 136                                                 }
 137                                         }
 138                                 }
 139                                 else {
 140                                         $newname = $name;
 141                                         if(strstr($name,'_')) {
 142                                                 $newname = str_replace('_',' ',$name);
 143                                                 $r = q("SELECT * FROM `contact` WHERE `name` = '%s' AND `uid` = %d LIMIT 1",
 144                                                         dbesc($newname),
 145                                                         intval($profile_uid)
 146                                                 );
 147                                         }
 148                                         else {
 149                                                 $r = q("SELECT * FROM `contact` WHERE `nick` = '%s' AND `uid` = %d LIMIT 1",
 150                                                         dbesc($name),
 151                                                         intval($profile_uid)
 152                                                 );
 153                                         }
 154                                         if(count($r)) {
 155                                                 $profile = $r[0]['url'];
 156                                                 $salmon  = $r[0]['notify'];
 157                                         }
 158                                 }
 159                                 if($profile) {
 160                                         $body = str_replace($name,'[url=' . $profile . ']' . $newname   . '[/url]', $body);
 161                                         if(strlen($str_tags))
 162                                                 $str_tags .= ',';
 163                                         $profile = str_replace(',','%2c',$profile);
 164                                         $str_tags .= '[url=' . $profile . ']' . $newname        . '[/url]';
 165                                 }
 166                         }
 167                 }
 168         }
 169
 170         $wall = 0;
 171         if($post_type === 'wall' || $post_type === 'wall-comment')
 172                 $wall = 1;
 173
 174         if(! strlen($verb))
 175                 $verb = ACTIVITY_POST ;
 176
 177         $gravity = (($parent) ? 6 : 0 );
 178
 179         $notify_type = (($parent) ? 'comment-new' : 'wall-new' );
 180
 181         $uri = item_new_uri($a->get_hostname(),$profile_uid);
 182
 183         $r = q("INSERT INTO `item` (`uid`,`type`,`wall`,`gravity`,`contact-id`,`owner-name`,`owner-link`,`owner-avatar`,
 184                 `author-name`, `author-link`, `author-avatar`, `created`,
 185                 `edited`, `changed`, `uri`, `title`, `body`, `location`, `coord`, `verb`, `allow_cid`, `allow_gid`, `deny_cid`, `deny_gid`)
 186                 VALUES( %d, '%s', %d, %d, %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s' )",
 187                 intval($profile_uid),
 188                 dbesc($post_type),
 189                 intval($wall),
 190                 intval($gravity),
 191                 intval($contact_id),
 192                 dbesc($contact_record['name']),
 193                 dbesc($contact_record['url']),
 194                 dbesc($contact_record['thumb']),
 195                 dbesc($author['name']),
 196                 dbesc($author['url']),
 197                 dbesc($author['thumb']),
 198                 dbesc(datetime_convert()),
 199                 dbesc(datetime_convert()),
 200                 dbesc(datetime_convert()),
 201                 dbesc($uri),
 202                 dbesc($title),
 203                 dbesc($body),
 204                 dbesc($location),
 205                 dbesc($coord),
 206                 dbesc($verb),
 207                 dbesc($str_contact_allow),
 208                 dbesc($str_group_allow),
 209                 dbesc($str_contact_deny),
 210                 dbesc($str_group_deny)
 211         );
 212         $r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' LIMIT 1",
 213                 dbesc($uri));
 214         if(count($r)) {
 215                 $post_id = $r[0]['id'];
 216
 217                 if($parent) {
 218
 219                         // This item is the last leaf and gets the comment box, clear any ancestors
 220                         $r = q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent` = %d ",
 221                                 dbesc(datetime_convert()),
 222                                 intval($parent)
 223                         );
 224
 225                         // Inherit ACL's from the parent item.
 226                         // TODO merge with subsequent UPDATE operation and save a db write
 227
 228                         $r = q("UPDATE `item` SET `allow_cid` = '%s', `allow_gid` = '%s', `deny_cid` = '%s', `deny_gid` = '%s'
 229                                 WHERE `id` = %d LIMIT 1",
 230                                 dbesc($parent_item['allow_cid']),
 231                                 dbesc($parent_item['allow_gid']),
 232                                 dbesc($parent_item['deny_cid']),
 233                                 dbesc($parent_item['deny_gid']),
 234                                 intval($post_id)
 235                         );
 236
 237                         // Send a notification email to the conversation owner, unless the owner is me and I wrote this item
 238                         if(($user['notify-flags'] & NOTIFY_COMMENT) && ($contact_record != $author)) {
 239                                 require_once('bbcode.php');
 240                                 $from = $author['name'];
 241                                 $tpl = load_view_file('view/cmnt_received_eml.tpl');
 242                                 $email_tpl = replace_macros($tpl, array(
 243                                         '$sitename' => $a->config['sitename'],
 244                                         '$siteurl' =>  $a->get_baseurl(),
 245                                         '$username' => $user['username'],
 246                                         '$email' => $user['email'],
 247                                         '$from' => $from,
 248                                         '$body' => strip_tags(bbcode($body))
 249                                 ));
 250
 251                                 $res = mail($user['email'], $from . t(" commented on your item at ") . $a->config['sitename'],
 252                                         $email_tpl,t("From: Administrator@") . $a->get_hostname() );
 253                         }
 254                 }
 255                 else {
 256                         $parent = $post_id;
 257
 258                         // let me know if somebody did a wall-to-wall post on my profile
 259
 260                         if(($user['notify-flags'] & NOTIFY_WALL) && ($contact_record != $author)) {
 261                                 require_once('bbcode.php');
 262                                 $from = $author['name'];
 263                                 $tpl = load_view_file('view/wall_received_eml.tpl');
 264                                 $email_tpl = replace_macros($tpl, array(
 265                                         '$sitename' => $a->config['sitename'],
 266                                         '$siteurl' =>  $a->get_baseurl(),
 267                                         '$username' => $user['username'],
 268                                         '$email' => $user['email'],
 269                                         '$from' => $from,
 270                                         '$body' => strip_tags(bbcode($body))
 271                                 ));
 272
 273                                 $res = mail($user['email'], $from . t(" posted on your profile wall at ") . $a->config['sitename'],
 274                                         $email_tpl,t("From: Administrator@") . $a->get_hostname() );
 275                         }
 276                 }
 277
 278                 $r = q("UPDATE `item` SET `parent` = %d, `parent-uri` = '%s', `changed` = '%s', `last-child` = 1, `visible` = 1
 279                         WHERE `id` = %d LIMIT 1",
 280                         intval($parent),
 281                         dbesc(($parent == $post_id) ? $uri : $parent_item['uri']),
 282                         dbesc(datetime_convert()),
 283                         intval($post_id)
 284                 );
 285
 286                 // photo comments turn the corresponding item visible to the profile wall
 287                 // This way we don't see every picture in your new photo album posted to your wall at once.
 288                 // They will show up as people comment on them.
 289
 290                 if(! $parent_item['visible']) {
 291                         $r = q("UPDATE `item` SET `visible` = 1 WHERE `id` = %d LIMIT 1",
 292                                 intval($parent_item['id'])
 293                         );
 294                 }
 295         }
 296
 297         $php_path = ((strlen($a->config['php_path'])) ? $a->config['php_path'] : 'php');
 298         $proc_debug = get_config('system','proc_debug');
 299
 300         proc_close(proc_open("\"$php_path\" \"include/notifier.php\" \"$notify_type\" \"$post_id\" $proc_debug &",
 301                 array(),$foo));
 302
 303         goaway($a->get_baseurl() . "/" . $_POST['return'] );
 304         return; // NOTREACHED
 305 }
 306
 307 function item_content(&$a) {
 308
 309         if((! local_user()) && (! remote_user()))
 310                 return;
 311
 312         require_once('include/security.php');
 313
 314         $uid = $_SESSION['uid'];
 315
 316         if(($a->argc == 3) && ($a->argv[1] === 'drop') && intval($a->argv[2])) {
 317
 318                 // locate item to be deleted
 319
 320                 $r = q("SELECT * FROM `item` WHERE `id` = %d LIMIT 1",
 321                         intval($a->argv[2])
 322                 );
 323
 324                 if(! count($r)) {
 325                         notice( t('Item not found.') . EOL);
 326                         goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
 327                 }
 328                 $item = $r[0];
 329
 330                 // check if logged in user is either the author or owner of this item
 331
 332                 if(($_SESSION['visitor_id'] == $item['contact-id']) || ($_SESSION['uid'] == $item['uid'])) {
 333
 334                         // delete the item
 335
 336                         $r = q("UPDATE `item` SET `deleted` = 1, `body` = '', `edited` = '%s', `changed` = '%s' WHERE `id` = %d LIMIT 1",
 337                                 dbesc(datetime_convert()),
 338                                 dbesc(datetime_convert()),
 339                                 intval($item['id'])
 340                         );
 341
 342                         // If item is a link to a photo resource, nuke all the associated photos
 343                         // (visitors will not have photo resources)
 344                         // This only applies to photos uploaded from the photos page. Photos inserted into a post do not
 345                         // generate a resource-id and therefore aren't intimately linked to the item.
 346
 347                         if(strlen($item['resource-id'])) {
 348                                 $q("DELETE FROM `photo` WHERE `resource-id` = '%s' AND `uid` = %d ",
 349                                         dbesc($item['resource-id']),
 350                                         intval($item['uid'])
 351                                 );
 352                                 // ignore the result
 353                         }
 354
 355                         // If it's the parent of a comment thread, kill all the kids
 356
 357                         if($item['uri'] == $item['parent-uri']) {
 358                                 $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s', `body` = ''
 359                                         WHERE `parent-uri` = '%s' AND `uid` = %d ",
 360                                         dbesc(datetime_convert()),
 361                                         dbesc(datetime_convert()),
 362                                         dbesc($item['parent-uri']),
 363                                         intval($item['uid'])
 364                                 );
 365                                 // ignore the result
 366                         }
 367                         else {
 368                                 // ensure that last-child is set in case the comment that had it just got wiped.
 369                                 q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d ",
 370                                         dbesc(datetime_convert()),
 371                                         dbesc($item['parent-uri']),
 372                                         intval($item['uid'])
 373                                 );
 374                                 // who is the last child now?
 375                                 $r = q("SELECT `id` FROM `item` WHERE `parent-uri` = '%s' AND `type` != 'activity' AND `deleted` = 0 AND `uid` = %d ORDER BY `edited` DESC LIMIT 1",
 376                                         dbesc($item['parent-uri']),
 377                                         intval($item['uid'])
 378                                 );
 379                                 if(count($r)) {
 380                                         q("UPDATE `item` SET `last-child` = 1 WHERE `id` = %d LIMIT 1",
 381                                                 intval($r[0]['id'])
 382                                         );
 383                                 }
 384                         }
 385                         $drop_id = intval($item['id']);
 386                         $php_path = ((strlen($a->config['php_path'])) ? $a->config['php_path'] : 'php');
 387                         $proc_debug = get_config('system','proc_debug');
 388
 389
 390                         // send the notification upstream/downstream as the case may be
 391
 392                         proc_close(proc_open("\"$php_path\" \"include/notifier.php\" \"drop\" \"$drop_id\" $proc_debug &",
 393                                 array(), $foo));
 394
 395                         goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
 396                         return; //NOTREACHED
 397                 }
 398                 else {
 399                         notice( t('Permission denied.') . EOL);
 400                         goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
 401                         //NOTREACHED
 402                 }
 403         }
 404 }