mod/item.php

   1 <?php
   2
   3 function sanitise_acl(&$item) {
   4         $item = '<' . intval(notags(trim($item))) . '>';
   5 }
   6
   7 function item_post(&$a) {
   8
   9         if((! local_user()) && (! remote_user()))
  10                 return;
  11
  12         require_once('include/security.php');
  13
  14         $uid = $_SESSION['uid'];
  15         $parent = ((x($_POST,'parent')) ? intval($_POST['parent']) : 0);
  16
  17         $parent_item = null;
  18
  19         if($parent) {
  20                 $r = q("SELECT * FROM `item` WHERE `id` = %d LIMIT 1",
  21                         intval($parent)
  22                 );
  23                 if(! count($r)) {
  24                         notice("Unable to locate original post." . EOL);
  25                         goaway($a->get_baseurl() . "/" . $_POST['return'] );
  26                 }
  27                 $parent_item = $r[0];
  28         }
  29
  30         $profile_uid = ((x($_POST,'profile_uid')) ? intval($_POST['profile_uid']) : 0);
  31
  32         if(! can_write_wall($a,$profile_uid)) {
  33                 notice("Permission denied." . EOL) ;
  34                 return;
  35         }
  36
  37         $str_group_allow = '';
  38         $group_allow = $_POST['group_allow'];
  39         if(is_array($group_allow)) {
  40                 array_walk($group_allow,'sanitise_acl');
  41                 $str_group_allow = implode('',$group_allow);
  42         }
  43
  44         $str_contact_allow = '';
  45         $contact_allow = $_POST['contact_allow'];
  46         if(is_array($contact_allow)) {
  47                 array_walk($contact_allow,'sanitise_acl');
  48                 $str_contact_allow = implode('',$contact_allow);
  49         }
  50
  51         $str_group_deny = '';
  52         $group_deny = $_POST['group_deny'];
  53         if(is_array($group_deny)) {
  54                 array_walk($group_deny,'sanitise_acl');
  55                 $str_group_deny = implode('',$group_deny);
  56         }
  57
  58         $str_contact_deny = '';
  59         $contact_deny = $_POST['contact_deny'];
  60         if(is_array($contact_deny)) {
  61                 array_walk($contact_deny,'sanitise_acl');
  62                 $str_contact_deny = implode('',$contact_deny);
  63         }
  64
  65
  66         $body = escape_tags(trim($_POST['body']));
  67
  68         if(! strlen($body)) {
  69                 notice("Empty post discarded." . EOL );
  70                 goaway($a->get_baseurl() . "/" . $_POST['return'] );
  71
  72         }
  73
  74         // get contact info for poster
  75
  76         if((x($_SESSION,'visitor_id')) && (intval($_SESSION['visitor_id']))) {
  77                 $contact_id = $_SESSION['visitor_id'];
  78         }
  79         else {
  80                 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 1 LIMIT 1",
  81                         intval($_SESSION['uid']));
  82                 if(count($r))
  83                         $contact_id = $r[0]['id'];
  84         }
  85
  86         // get contact info for owner
  87
  88         $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 1 LIMIT 1",
  89                 intval($profile_uid)
  90         );
  91         if(count($r))
  92                 $contact_record = $r[0];
  93
  94
  95         $notify_type = (($parent) ? 'comment-new' : 'wall-new' );
  96
  97         if(($_POST['type'] == 'wall') || ($_POST['type'] == 'wall-comment')) {
  98
  99                 do {
 100                         $dups = false;
 101                         $hash = random_string();
 102                         $r = q("SELECT `id` FROM `item` WHERE `hash` = '%s' LIMIT 1",
 103                         dbesc($hash));
 104                         if(count($r))
 105                                 $dups = true;
 106                 } while($dups == true);
 107
 108
 109                 $r = q("INSERT INTO `item` (`uid`,`type`,`contact-id`,`owner-name`,`owner-link`,`owner-avatar`, `remote-id`, `created`,`edited`,`hash`,`body`,
 110                         `allow_cid`, `allow_gid`, `deny_cid`, `deny_gid`)
 111                         VALUES( %d, '%s', %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s' )",
 112                         intval($profile_uid),
 113                         dbesc($_POST['type']),
 114                         intval($contact_id),
 115                         dbesc($contact_record['name']),
 116                         dbesc($contact_record['url']),
 117                         dbesc($contact_record['thumb']),
 118                         dbesc("urn:X-dfrn:" . $a->get_baseurl() . ':' . intval($profile_uid) . ':' . $hash),
 119                         datetime_convert(),
 120                         datetime_convert(),
 121                         dbesc($hash),
 122                         dbesc(escape_tags(trim($_POST['body']))),
 123                         dbesc($str_contact_allow),
 124                         dbesc($str_group_allow),
 125                         dbesc($str_contact_deny),
 126                         dbesc($str_group_deny)
 127
 128                 );
 129                 $r = q("SELECT `id` FROM `item` WHERE `hash` = '%s' LIMIT 1",
 130                         dbesc($hash));
 131                 if(count($r)) {
 132                         $post_id = $r[0]['id'];
 133
 134                         if($parent) {
 135
 136                                 // This item is the last leaf and gets the comment box, clear any ancestors
 137                                 $r = q("UPDATE `item` SET `last-child` = 0 WHERE `parent` = %d ",
 138                                         intval($parent)
 139                                 );
 140
 141                                 // Inherit ACL's from the parent item.
 142                                 // TODO merge with subsequent UPDATE operation and save a db write
 143
 144                                 $r = q("UPDATE `item` SET `allow_cid` = '%s', `allow_gid` = '%s', `deny_cid` = '%s', `deny_gid` = '%s'
 145                                         WHERE `id` = %d LIMIT 1",
 146                                         dbesc($parent_item['allow_cid']),
 147                                         dbesc($parent_item['allow_gid']),
 148                                         dbesc($parent_item['deny_cid']),
 149                                         dbesc($parent_item['deny_gid']),
 150                                         intval($post_id)
 151                                 );
 152                         }
 153                         else {
 154                                 $parent = $post_id;
 155                         }
 156
 157                         $r = q("UPDATE `item` SET `parent` = %d, `last-child` = 1, `visible` = 1
 158                                 WHERE `id` = %d LIMIT 1",
 159                                 intval($parent),
 160                                 intval($post_id));
 161                 }
 162
 163                 $url = bin2hex($a->get_baseurl());
 164
 165                 proc_close(proc_open("php include/notifier.php \"$url\" \"$notify_type\" \"$post_id\" > notify.log &",
 166                         array(),$foo));
 167
 168         }
 169         goaway($a->get_baseurl() . "/" . $_POST['return'] );
 170         return; // NOTREACHED
 171 }