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
  16
  17         $parent = ((x($_POST,'parent')) ? intval($_POST['parent']) : 0);
  18
  19         $parent_item = null;
  20
  21         if($parent) {
  22                 $r = q("SELECT * FROM `item` WHERE `id` = %d LIMIT 1",
  23                         intval($parent)
  24                 );
  25                 if(! count($r)) {
  26                         notice("Unable to locate original post." . EOL);
  27                         goaway($a->get_baseurl() . "/" . $_POST['return'] );
  28                 }
  29                 $parent_item = $r[0];
  30         }
  31
  32         $profile_uid = ((x($_POST,'profile_uid')) ? intval($_POST['profile_uid']) : 0);
  33
  34         if(! can_write_wall($a,$profile_uid)) {
  35                 notice("Permission denied." . EOL) ;
  36                 return;
  37         }
  38
  39         $str_group_allow = '';
  40         $group_allow = $_POST['group_allow'];
  41         if(is_array($group_allow)) {
  42                 array_walk($group_allow,'sanitise_acl');
  43                 $str_group_allow = implode('',$group_allow);
  44         }
  45
  46         $str_contact_allow = '';
  47         $contact_allow = $_POST['contact_allow'];
  48         if(is_array($contact_allow)) {
  49                 array_walk($contact_allow,'sanitise_acl');
  50                 $str_contact_allow = implode('',$contact_allow);
  51         }
  52
  53         $str_group_deny = '';
  54         $group_deny = $_POST['group_deny'];
  55         if(is_array($group_deny)) {
  56                 array_walk($group_deny,'sanitise_acl');
  57                 $str_group_deny = implode('',$group_deny);
  58         }
  59
  60         $str_contact_deny = '';
  61         $contact_deny = $_POST['contact_deny'];
  62         if(is_array($contact_deny)) {
  63                 array_walk($contact_deny,'sanitise_acl');
  64                 $str_contact_deny = implode('',$contact_deny);
  65         }
  66
  67         $title = notags(trim($_POST['title']));
  68         $body = escape_tags(trim($_POST['body']));
  69
  70         if(! strlen($body)) {
  71                 notice("Empty post discarded." . EOL );
  72                 goaway($a->get_baseurl() . "/" . $_POST['return'] );
  73
  74         }
  75
  76         // get contact info for poster
  77
  78         if((x($_SESSION,'visitor_id')) && (intval($_SESSION['visitor_id']))) {
  79                 $contact_id = $_SESSION['visitor_id'];
  80         }
  81         else {
  82                 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 1 LIMIT 1",
  83                         intval($_SESSION['uid']));
  84                 if(count($r))
  85                         $contact_id = $r[0]['id'];
  86         }
  87
  88         // get contact info for owner
  89
  90         $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 1 LIMIT 1",
  91                 intval($profile_uid)
  92         );
  93         if(count($r))
  94                 $contact_record = $r[0];
  95
  96         $post_type == notags(trim($_POST['type']));
  97
  98         if($post_type == 'net-comment') {
  99                 if($parent_item !== null) {
 100                         if($parent_item['type'] == 'remote')
 101                                 $post_type = 'remote-comment';
 102                         else
 103                                 $post_type = 'wall-comment';
 104                 }
 105         }
 106
 107         $notify_type = (($parent) ? 'comment-new' : 'wall-new' );
 108
 109         if(($_POST['type'] == 'wall') || ($_POST['type'] == 'wall-comment') || ($_POST['type'] == 'net-comment')) {
 110
 111                 do {
 112                         $dups = false;
 113                         $hash = random_string();
 114
 115                         $uri = "urn:X-dfrn:" . $a->get_hostname() . ':' . $profile_uid . ':' . $hash;
 116
 117                         $r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' LIMIT 1",
 118                         dbesc($uri));
 119                         if(count($r))
 120                                 $dups = true;
 121                 } while($dups == true);
 122
 123
 124                 $r = q("INSERT INTO `item` (`uid`,`type`,`contact-id`,`owner-name`,`owner-link`,`owner-avatar`, `created`,
 125                         `edited`, `uri`, `title`, `body`, `allow_cid`, `allow_gid`, `deny_cid`, `deny_gid`)
 126                         VALUES( %d, '%s', %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s' )",
 127                         intval($profile_uid),
 128                         dbesc($_POST['type']),
 129                         intval($contact_id),
 130                         dbesc($contact_record['name']),
 131                         dbesc($contact_record['url']),
 132                         dbesc($contact_record['thumb']),
 133                         datetime_convert(),
 134                         datetime_convert(),
 135                         dbesc($uri),
 136                         dbesc($title),
 137                         dbesc($body),
 138                         dbesc($str_contact_allow),
 139                         dbesc($str_group_allow),
 140                         dbesc($str_contact_deny),
 141                         dbesc($str_group_deny)
 142
 143                 );
 144                 $r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' LIMIT 1",
 145                         dbesc($uri));
 146                 if(count($r)) {
 147                         $post_id = $r[0]['id'];
 148
 149                         if($parent) {
 150
 151                                 // This item is the last leaf and gets the comment box, clear any ancestors
 152                                 $r = q("UPDATE `item` SET `last-child` = 0 WHERE `parent` = %d ",
 153                                         intval($parent)
 154                                 );
 155
 156                                 // Inherit ACL's from the parent item.
 157                                 // TODO merge with subsequent UPDATE operation and save a db write
 158
 159                                 $r = q("UPDATE `item` SET `allow_cid` = '%s', `allow_gid` = '%s', `deny_cid` = '%s', `deny_gid` = '%s'
 160                                         WHERE `id` = %d LIMIT 1",
 161                                         dbesc($parent_item['allow_cid']),
 162                                         dbesc($parent_item['allow_gid']),
 163                                         dbesc($parent_item['deny_cid']),
 164                                         dbesc($parent_item['deny_gid']),
 165                                         intval($post_id)
 166                                 );
 167                         }
 168                         else {
 169                                 $parent = $post_id;
 170                         }
 171
 172                         $r = q("UPDATE `item` SET `parent` = %d, `parent-uri` = '%s', `last-child` = 1, `visible` = 1
 173                                 WHERE `id` = %d LIMIT 1",
 174                                 intval($parent),
 175                                 dbesc(($parent == $post_id) ? $uri : $parent_item['uri']),
 176                                 intval($post_id)
 177                         );
 178                 }
 179
 180                 $url = $a->get_baseurl();
 181
 182                 proc_close(proc_open("php include/notifier.php \"$url\" \"$notify_type\" \"$post_id\" > notify.log &",
 183                         array(),$foo));
 184
 185         }
 186         goaway($a->get_baseurl() . "/" . $_POST['return'] );
 187         return; // NOTREACHED
 188 }
 189
 190 function item_content(&$a) {
 191
 192         if((! local_user()) && (! remote_user()))
 193                 return;
 194
 195         require_once('include/security.php');
 196
 197         $uid = $_SESSION['uid'];
 198
 199         if(($a->argc == 3) && ($a->argv[1] == 'drop') && intval($a->argv[2])) {
 200
 201                 // locate item to be deleted
 202
 203                 $r = q("SELECT * FROM `item` WHERE `id` = %d LIMIT 1",
 204                         intval($a->argv[2])
 205                 );
 206
 207                 if(! count($r)) {
 208                         notice("Item not found." . EOL);
 209                         goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
 210                 }
 211                 $item = $r[0];
 212
 213                 // check if logged in user is either the author or owner of this item
 214
 215                 if(($_SESSION['visitor_id'] == $item['contact-id']) || ($_SESSION['uid'] == $item['uid'])) {
 216
 217                         // delete the item
 218
 219                         $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s' WHERE `id` = %d LIMIT 1",
 220                                 dbesc(datetime_convert()),
 221                                 intval($item['id'])
 222                         );
 223
 224                         // If it's the parent of a comment thread, kill all the kids
 225
 226                         if($item['uri'] == $item['parent-uri']) {
 227                                 $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s'
 228                                         WHERE `parent-uri` = '%s' AND `uid` = %d ",
 229                                         dbesc(datetime_convert()),
 230                                         dbesc($item['parent-uri']),
 231                                         intval($item['uid'])
 232                                 );
 233                         }
 234
 235                         $url = $a->get_baseurl();
 236                         $drop_id = intval($item['id']);
 237
 238                         // send the notification upstream/downstream as the case may be
 239
 240                         proc_close(proc_open("php include/notifier.php \"$url\" \"drop\" \"$drop_id\" > notify.log &",
 241                                 array(),$foo));
 242
 243                         goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
 244                         return; //NOTREACHED
 245                 }
 246                 else {
 247                         notice("Permission denied." . EOL);
 248                         goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
 249                         return; //NOTREACHED
 250                 }
 251         }
 252 }