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