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         $title             = notags(trim($_POST['title']));
  59         $body              = escape_tags(trim($_POST['body']));
  60         $location          = notags(trim($_POST['location']));
  61         $coord             = notags(trim($_POST['coord']));
  62         $verb              = notags(trim($_POST['verb']));
  63
  64         if(! strlen($body)) {
  65                 notice( t('Empty post discarded.') . EOL );
  66                 goaway($a->get_baseurl() . "/" . $_POST['return'] );
  67
  68         }
  69
  70         // get contact info for poster
  71
  72         $author = null;
  73
  74         if(($_SESSION['uid']) && ($_SESSION['uid'] == $profile_uid)) {
  75                 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 1 LIMIT 1",
  76                         intval($_SESSION['uid'])
  77                 );
  78         }
  79         else {
  80                 if((x($_SESSION,'visitor_id')) && (intval($_SESSION['visitor_id']))) {
  81                         $r = q("SELECT * FROM `contact` WHERE `id` = %d LIMIT 1",
  82                                 intval($_SESSION['visitor_id'])
  83                         );
  84                 }
  85         }
  86
  87         if(count($r)) {
  88                 $author = $r[0];
  89                 $contact_id = $author['id'];
  90         }
  91
  92         // get contact info for owner
  93
  94         if($profile_uid == $_SESSION['uid']) {
  95                 $contact_record = $author;
  96         }
  97         else {
  98                 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 1 LIMIT 1",
  99                         intval($profile_uid)
 100                 );
 101                 if(count($r))
 102                         $contact_record = $r[0];
 103         }
 104
 105         $post_type = notags(trim($_POST['type']));
 106
 107         if($post_type === 'net-comment') {
 108                 if($parent_item !== null) {
 109                         if($parent_item['type'] === 'remote') {
 110                                 $post_type = 'remote-comment';
 111                         }
 112                         else {
 113                                 $post_type = 'wall-comment';
 114                         }
 115                 }
 116         }
 117
 118         $str_tags = '';
 119         $inform   = '';
 120
 121         $tags = get_tags($body);
 122
 123
 124         if(count($tags)) {
 125                 foreach($tags as $tag) {
 126                         if(strpos($tag,'#') === 0) {
 127                                 $basetag = str_replace('_',' ',substr($tag,1));
 128                                 $body = str_replace($tag,'#[url=' . $a->get_baseurl() . '/search?search=' . rawurlencode($basetag) . ']' . $basetag . '[/url]',$body);
 129                                 if(strlen($str_tags))
 130                                         $str_tags .= ',';
 131                                 $str_tags .= '#[url=' . $a->get_baseurl() . '/search?search=' . rawurlencode($basetag) . ']' . $basetag . '[/url]';
 132                                 continue;
 133                         }
 134                         if(strpos($tag,'@') === 0) {
 135                                 $name = substr($tag,1);
 136                                 if((strpos($name,'@')) || (strpos($name,'http://'))) {
 137                                         $newname = $name;
 138                                         $links = @lrdd($name);
 139                                         if(count($links)) {
 140                                                 foreach($links as $link) {
 141                                                         if($link['@attributes']['rel'] === 'http://webfinger.net/rel/profile-page')
 142                                         $profile = $link['@attributes']['href'];
 143                                                         if($link['@attributes']['rel'] === 'salmon') {
 144                                                                 if(strlen($inform))
 145                                                                         $inform .= ',';
 146                                         $inform .= 'url:' . str_replace(',','%2c',$link['@attributes']['href']);
 147                                                         }
 148                                                 }
 149                                         }
 150                                 }
 151                                 else {
 152                                         $newname = $name;
 153                                         if(strstr($name,'_')) {
 154                                                 $newname = str_replace('_',' ',$name);
 155                                                 $r = q("SELECT * FROM `contact` WHERE `name` = '%s' AND `uid` = %d LIMIT 1",
 156                                                         dbesc($newname),
 157                                                         intval($profile_uid)
 158                                                 );
 159                                         }
 160                                         else {
 161                                                 $r = q("SELECT * FROM `contact` WHERE `nick` = '%s' AND `uid` = %d LIMIT 1",
 162                                                         dbesc($name),
 163                                                         intval($profile_uid)
 164                                                 );
 165                                         }
 166                                         if(count($r)) {
 167                                                 $profile = $r[0]['url'];
 168                                                 $newname = $r[0]['name'];
 169                                                 if(strlen($inform))
 170                                                         $inform .= ',';
 171                                                 $inform .= 'cid:' . $r[0]['id'];
 172                                         }
 173                                 }
 174                                 if($profile) {
 175                                         $body = str_replace($name,'[url=' . $profile . ']' . $newname   . '[/url]', $body);
 176                                         $profile = str_replace(',','%2c',$profile);
 177                                         if(strlen($str_tags))
 178                                                 $str_tags .= ',';
 179                                         $str_tags .= '@[url=' . $profile . ']' . $newname       . '[/url]';
 180                                 }
 181                         }
 182                 }
 183         }
 184
 185         $wall = 0;
 186         if($post_type === 'wall' || $post_type === 'wall-comment')
 187                 $wall = 1;
 188
 189         if(! strlen($verb))
 190                 $verb = ACTIVITY_POST ;
 191
 192         $gravity = (($parent) ? 6 : 0 );
 193
 194         $notify_type = (($parent) ? 'comment-new' : 'wall-new' );
 195
 196         $uri = item_new_uri($a->get_hostname(),$profile_uid);
 197
 198         $r = q("INSERT INTO `item` (`uid`,`type`,`wall`,`gravity`,`contact-id`,`owner-name`,`owner-link`,`owner-avatar`,
 199                 `author-name`, `author-link`, `author-avatar`, `created`, `edited`, `changed`, `uri`, `title`, `body`, `location`, `coord`,
 200                 `tag`, `inform`, `verb`, `allow_cid`, `allow_gid`, `deny_cid`, `deny_gid`, `private` )
 201                 VALUES( %d, '%s', %d, %d, %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', %d )",
 202                 intval($profile_uid),
 203                 dbesc($post_type),
 204                 intval($wall),
 205                 intval($gravity),
 206                 intval($contact_id),
 207                 dbesc($contact_record['name']),
 208                 dbesc($contact_record['url']),
 209                 dbesc($contact_record['thumb']),
 210                 dbesc($author['name']),
 211                 dbesc($author['url']),
 212                 dbesc($author['thumb']),
 213                 dbesc(datetime_convert()),
 214                 dbesc(datetime_convert()),
 215                 dbesc(datetime_convert()),
 216                 dbesc($uri),
 217                 dbesc($title),
 218                 dbesc($body),
 219                 dbesc($location),
 220                 dbesc($coord),
 221                 dbesc($str_tags),
 222                 dbesc($inform),
 223                 dbesc($verb),
 224                 dbesc($str_contact_allow),
 225                 dbesc($str_group_allow),
 226                 dbesc($str_contact_deny),
 227                 dbesc($str_group_deny),
 228                 intval($private)
 229         );
 230         $r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' LIMIT 1",
 231                 dbesc($uri));
 232         if(count($r)) {
 233                 $post_id = $r[0]['id'];
 234                 logger('mod_item: saved item ' . $post_id);
 235
 236                 if($parent) {
 237
 238                         // This item is the last leaf and gets the comment box, clear any ancestors
 239                         $r = q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent` = %d ",
 240                                 dbesc(datetime_convert()),
 241                                 intval($parent)
 242                         );
 243
 244                         // Inherit ACL's from the parent item.
 245                         // TODO merge with subsequent UPDATE operation and save a db write
 246
 247                         $r = q("UPDATE `item` SET `allow_cid` = '%s', `allow_gid` = '%s', `deny_cid` = '%s', `deny_gid` = '%s', `private` = %d
 248                                 WHERE `id` = %d LIMIT 1",
 249                                 dbesc($parent_item['allow_cid']),
 250                                 dbesc($parent_item['allow_gid']),
 251                                 dbesc($parent_item['deny_cid']),
 252                                 dbesc($parent_item['deny_gid']),
 253                                 intval($parent_item['private']),
 254                                 intval($post_id)
 255                         );
 256
 257                         // Send a notification email to the conversation owner, unless the owner is me and I wrote this item
 258                         if(($user['notify-flags'] & NOTIFY_COMMENT) && ($contact_record != $author)) {
 259                                 require_once('bbcode.php');
 260                                 $from = $author['name'];
 261                                 $tpl = load_view_file('view/cmnt_received_eml.tpl');
 262                                 $email_tpl = replace_macros($tpl, array(
 263                                         '$sitename' => $a->config['sitename'],
 264                                         '$siteurl' =>  $a->get_baseurl(),
 265                                         '$username' => $user['username'],
 266                                         '$email' => $user['email'],
 267                                         '$from' => $from,
 268                                         '$display' => $a->get_baseurl() . '/display/' . $user['nickname'] . '/' . $post_id,
 269                                         '$body' => strip_tags(bbcode($body))
 270                                 ));
 271
 272                                 $res = mail($user['email'], $from . t(" commented on your item at ") . $a->config['sitename'],
 273                                         $email_tpl,t("From: Administrator@") . $a->get_hostname() );
 274                         }
 275                 }
 276                 else {
 277                         $parent = $post_id;
 278
 279                         // let me know if somebody did a wall-to-wall post on my profile
 280
 281                         if(($user['notify-flags'] & NOTIFY_WALL) && ($contact_record != $author)) {
 282                                 require_once('bbcode.php');
 283                                 $from = $author['name'];
 284                                 $tpl = load_view_file('view/wall_received_eml.tpl');
 285                                 $email_tpl = replace_macros($tpl, array(
 286                                         '$sitename' => $a->config['sitename'],
 287                                         '$siteurl' =>  $a->get_baseurl(),
 288                                         '$username' => $user['username'],
 289                                         '$email' => $user['email'],
 290                                         '$from' => $from,
 291                                         '$display' => $a->get_baseurl() . '/display/' . $user['nickname'] . '/' . $post_id,
 292                                         '$body' => strip_tags(bbcode($body))
 293                                 ));
 294
 295                                 $res = mail($user['email'], $from . t(" posted on your profile wall at ") . $a->config['sitename'],
 296                                         $email_tpl,t("From: Administrator@") . $a->get_hostname() );
 297                         }
 298                 }
 299
 300                 $r = q("UPDATE `item` SET `parent` = %d, `parent-uri` = '%s', `changed` = '%s', `last-child` = 1, `visible` = 1
 301                         WHERE `id` = %d LIMIT 1",
 302                         intval($parent),
 303                         dbesc(($parent == $post_id) ? $uri : $parent_item['uri']),
 304                         dbesc(datetime_convert()),
 305                         intval($post_id)
 306                 );
 307
 308                 // photo comments turn the corresponding item visible to the profile wall
 309                 // This way we don't see every picture in your new photo album posted to your wall at once.
 310                 // They will show up as people comment on them.
 311
 312                 if(! $parent_item['visible']) {
 313                         $r = q("UPDATE `item` SET `visible` = 1 WHERE `id` = %d LIMIT 1",
 314                                 intval($parent_item['id'])
 315                         );
 316                 }
 317         }
 318
 319         $php_path = ((strlen($a->config['php_path'])) ? $a->config['php_path'] : 'php');
 320
 321         logger('mod_item: notifier invoked: ' . "\"$php_path\" \"include/notifier.php\" \"$notify_type\" \"$post_id\" &");
 322
 323         proc_close(proc_open("\"$php_path\" \"include/notifier.php\" \"$notify_type\" \"$post_id\" &",
 324                 array(),$foo));
 325
 326         goaway($a->get_baseurl() . "/" . $_POST['return'] );
 327         return; // NOTREACHED
 328 }
 329
 330 function item_content(&$a) {
 331
 332         if((! local_user()) && (! remote_user()))
 333                 return;
 334
 335         require_once('include/security.php');
 336
 337         $uid = $_SESSION['uid'];
 338
 339         if(($a->argc == 3) && ($a->argv[1] === 'drop') && intval($a->argv[2])) {
 340
 341                 // locate item to be deleted
 342
 343                 $r = q("SELECT * FROM `item` WHERE `id` = %d LIMIT 1",
 344                         intval($a->argv[2])
 345                 );
 346
 347                 if(! count($r)) {
 348                         notice( t('Item not found.') . EOL);
 349                         goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
 350                 }
 351                 $item = $r[0];
 352
 353                 // check if logged in user is either the author or owner of this item
 354
 355                 if(($_SESSION['visitor_id'] == $item['contact-id']) || ($_SESSION['uid'] == $item['uid'])) {
 356
 357                         // delete the item
 358
 359                         $r = q("UPDATE `item` SET `deleted` = 1, `body` = '', `edited` = '%s', `changed` = '%s' WHERE `id` = %d LIMIT 1",
 360                                 dbesc(datetime_convert()),
 361                                 dbesc(datetime_convert()),
 362                                 intval($item['id'])
 363                         );
 364
 365                         // If item is a link to a photo resource, nuke all the associated photos
 366                         // (visitors will not have photo resources)
 367                         // This only applies to photos uploaded from the photos page. Photos inserted into a post do not
 368                         // generate a resource-id and therefore aren't intimately linked to the item.
 369
 370                         if(strlen($item['resource-id'])) {
 371                                 $q("DELETE FROM `photo` WHERE `resource-id` = '%s' AND `uid` = %d ",
 372                                         dbesc($item['resource-id']),
 373                                         intval($item['uid'])
 374                                 );
 375                                 // ignore the result
 376                         }
 377
 378                         // If it's the parent of a comment thread, kill all the kids
 379
 380                         if($item['uri'] == $item['parent-uri']) {
 381                                 $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s', `body` = ''
 382                                         WHERE `parent-uri` = '%s' AND `uid` = %d ",
 383                                         dbesc(datetime_convert()),
 384                                         dbesc(datetime_convert()),
 385                                         dbesc($item['parent-uri']),
 386                                         intval($item['uid'])
 387                                 );
 388                                 // ignore the result
 389                         }
 390                         else {
 391                                 // ensure that last-child is set in case the comment that had it just got wiped.
 392                                 q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d ",
 393                                         dbesc(datetime_convert()),
 394                                         dbesc($item['parent-uri']),
 395                                         intval($item['uid'])
 396                                 );
 397                                 // who is the last child now?
 398                                 $r = q("SELECT `id` FROM `item` WHERE `parent-uri` = '%s' AND `type` != 'activity' AND `deleted` = 0 AND `uid` = %d ORDER BY `edited` DESC LIMIT 1",
 399                                         dbesc($item['parent-uri']),
 400                                         intval($item['uid'])
 401                                 );
 402                                 if(count($r)) {
 403                                         q("UPDATE `item` SET `last-child` = 1 WHERE `id` = %d LIMIT 1",
 404                                                 intval($r[0]['id'])
 405                                         );
 406                                 }
 407                         }
 408                         $drop_id = intval($item['id']);
 409                         $php_path = ((strlen($a->config['php_path'])) ? $a->config['php_path'] : 'php');
 410
 411                         // send the notification upstream/downstream as the case may be
 412
 413                         proc_close(proc_open("\"$php_path\" \"include/notifier.php\" \"drop\" \"$drop_id\" &",
 414                                 array(), $foo));
 415
 416                         goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
 417                         return; //NOTREACHED
 418                 }
 419                 else {
 420                         notice( t('Permission denied.') . EOL);
 421                         goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
 422                         //NOTREACHED
 423                 }
 424         }
 425 }