<?php
/**
* MyBB
* Copyright © 2006 MyBB Group, All Rights Reserved
*
* Website: http://www.mybboard.net
* License: http://www.mybboard.net/eula.html
*
* $Id: functions_upload.php 3055 2007-05-13 15:01:15Z Tikitiki $
*/
/**
* Remove an attachment from a specific post
*
* @param int The post ID
* @param string The posthash if available
* @param int The attachment ID
*/
function remove_attachment($pid, $posthash, $aid)
{
global $db, $mybb;
if($pid)
{
$post = get_post($pid);
}
$aid = intval($aid);
$posthash = $db->escape_string($posthash);
if($posthash != "")
{
$query = $db->simple_select(TABLE_PREFIX."attachments", "*", "aid='$aid' AND posthash='$posthash'");
$attachment = $db->fetch_array($query);
}
else
{
$query = $db->simple_select(TABLE_PREFIX."attachments", "*", "aid='$aid' AND pid='$pid'");
$attachment = $db->fetch_array($query);
}
$db->delete_query(TABLE_PREFIX."attachments", "aid='".$attachment['aid']."'");
@unlink($mybb->settings['uploadspath']."/".$attachment['attachname']);
if($attachment['thumbnail'])
{
@unlink($mybb->settings['uploadspath']."/".$attachment['thumbnail']);
}
if($attachment['visible'] == 1 && $post['pid'])
{
update_thread_counters($post['tid'], array("attachmentcount" => "-1"));
}
}
/**
* Remove all of the attachments from a specific post
*
* @param int The post ID
* @param string The posthash if available
*/
function remove_attachments($pid, $posthash="")
{
global $db, $mybb;
if($pid)
{
$post = get_post($pid);
}
$posthash = $db->escape_string($posthash);
if($posthash != "" && !$pid)
{
$query = $db->simple_select(TABLE_PREFIX."attachments", "*", "posthash='$posthash'");
}
else
{
$query = $db->simple_select(TABLE_PREFIX."attachments", "*", "pid='$pid'");
}
$num_attachments = 0;
while($attachment = $db->fetch_array($query))
{
if($attachment['visible'] == 1)
{
$num_attachments++;
}
$db->delete_query(TABLE_PREFIX."attachments", "aid='".$attachment['aid']."'");
@unlink($mybb->settings['uploadspath']."/".$attachment['attachname']);
if($attachment['thumbnail'])
{
@unlink($mybb->settings['uploadspath']."/".$attachment['thumbnail']);
}
}
if($post['pid'])
{
update_thread_counters($post['tid'], array("attachmentcount" => "-{$num_attachments}"));
}
}
/**
* Remove any matching avatars for a specific user ID
*
* @param int The user ID
* @param string A file name to be excluded from the removal
*/
function remove_avatars($uid, $exclude="")
{
global $mybb;
$dir = opendir($mybb->settings['avataruploadpath']);
if($dir)
{
while($file = @readdir($dir))
{
if(preg_match("#avatar_".$uid."\.#", $file) && is_file($mybb->settings['avataruploadpath']."/".$file) && $file != $exclude)
{
@unlink($mybb->settings['avataruploadpath']."/".$file);
}
}
@closedir($dir);
}
}
/**
* Upload a new avatar in to the file system
*
* @return array Array of errors if any, otherwise filename of successful.
*/
function upload_avatar()
{
global $db, $mybb, $lang, $_FILES;
$avatar = $_FILES['avatarupload'];
if(!is_uploaded_file($avatar['tmp_name']))
{
$ret['error'] = $lang->error_uploadfailed;
return $ret;
}
// Check we have a valid extension
$ext = get_extension(strtolower($avatar['name']));
if(!preg_match("#(gif|jpg|jpeg|jpe|bmp|png)$#i", $ext)) {
$ret['error'] = $lang->error_avatartype;
return $ret;
}
// Next check the file size
if($avatar['size'] > ($mybb->settings['avatarsize']*1024) && $mybb->settings['avatarsize'] > 0)
{
$ret['error'] = $lang->error_uploadsize;
return $ret;
}
$filename = "avatar_".$mybb->user['uid'].".".$ext;
$file = upload_file($avatar, $mybb->settings['avataruploadpath'], $filename);
if($file['error'])
{
$ret['error'] = $lang->error_uploadfailed;
return $ret;
}
// Lets just double check that it exists
if(!file_exists($mybb->settings['avataruploadpath']."/".$filename))
{
$ret['error'] = $lang->error_uploadfailed;
return $ret;
}
// Check if this is a valid image or not
$img_dimensions = @getimagesize($mybb->settings['avataruploadpath']."/".$filename);
if(!is_array($img_dimensions))
{
$ret['error'] = $lang->error_uploadfailed;
return $ret;
}
// Check a list of known MIME types to establish what kind of avatar we're uploading
switch(strtolower($avatar['type']))
{
case "image/gif":
$img_type = 1;
break;
case "image/jpeg":
case "image/x-jpg":
case "image/x-jpeg":
case "image/pjpeg":
case "image/jpg":
$img_type = 2;
break;
case "image/png":
case "image/x-png":
$img_type = 3;
break;
default:
$img_type = 0;
}
// Check if the uploaded file type matches the correct image type (returned by getimagesize)
if($img_dimensions[2] != $img_type || $img_type == 0)
{
$ret['error'] = $lang->error_uploadfailed;
return $ret;
}
// If we've got this far check dimensions
if($mybb->settings['maxavatardims'] != "")
{
list($maxwidth, $maxheight) = @explode("x", $mybb->settings['maxavatardims']);
if(($maxwidth && $img_dimensions[0] > $maxwidth) || ($maxheight && $img_dimensions[1] > $maxheight))
{
$ret['error'] = sprintf($lang->error_avatartoobig, $maxwidth, $maxheight);
@unlink($mybb->settings['avataruploadpath']."/".$filename);
return $ret;
}
}
// Everything is okay so lets delete old avatars for this user
remove_avatars($mybb->user['uid'], $filename);
$ret = array(
"avatar" => $mybb->settings['avataruploadpath']."/".$filename,
"width" => intval($img_dimensions[0]),
"height" => intval($img_dimensions[1])
);
return $ret;
}
/**
* Upload an attachment in to the file system
*
* @param array Attachment data (as fed by PHPs $_FILE)
* @return array Array of attachment data if successful, otherwise array of error data
*/
function upload_attachment($attachment)
{
global $db, $theme, $templates, $posthash, $pid, $tid, $forum, $mybb, $lang;
$posthash = $db->escape_string($mybb->input['posthash']);
if(isset($attachment['error']) && $attachment['error'] != 0)
{
$ret['error'] = $lang->error_uploadfailed.$lang->error_uploadfailed_detail;
switch($attachment['error'])
{
case 1: // UPLOAD_ERR_INI_SIZE
$ret['error'] .= $lang->error_uploadfailed_php1;
break;
case 2: // UPLOAD_ERR_FORM_SIZE
$ret['error'] .= $lang->error_uploadfailed_php2;
break;
case 3: // UPLOAD_ERR_PARTIAL
$ret['error'] .= $lang->error_uploadfailed_php3;
break;
case 4: // UPLOAD_ERR_NO_FILE
$ret['error'] .= $lang->error_uploadfailed_php4;
break;
case 6: // UPLOAD_ERR_NO_TMP_DIR
$ret['error'] .= $lang->error_uploadfailed_php6;
break;
case 7: // UPLOAD_ERR_CANT_WRITE
$ret['error'] .= $lang->error_uploadfailed_php7;
break;
default:
$ret['error'] .= sprintf($lang->error_uploadfailed_phpx, $attachment['error']);
break;
}
return $ret;
}
if(!is_uploaded_file($attachment['tmp_name']) || empty($attachment['tmp_name']))
{
$ret['error'] = $lang->error_uploadfailed.$lang->error_uploadfailed_php4;
return $ret;
}
$ext = get_extension($attachment['name']);
// Check if we have a valid extension
$query = $db->simple_select(TABLE_PREFIX."attachtypes", "*", "extension='".$db->escape_string($ext)."'");
$attachtype = $db->fetch_array($query);
if(!$attachtype['atid'])
{
$ret['error'] = $lang->error_attachtype;
return $ret;
}
// Check the size
if($attachment['size'] > $attachtype['maxsize']*1024 && $attachtype['maxsize'] != "")
{
$ret['error'] = sprintf($lang->error_attachsize, $attachtype['maxsize']);
return $ret;
}
// Double check attachment space usage
if($mybb->usergroup['attachquota'] > 0)
{
$query = $db->simple_select(TABLE_PREFIX."attachments", "SUM(filesize) AS ausage", "uid='".$mybb->user['uid']."'");
$usage = $db->fetch_array($query);
$usage = $usage['ausage']+$attachment['size'];
if($usage > ($mybb->usergroup['attachquota']*1024))
{
$friendlyquota = get_friendly_size($mybb->usergroup['attachquota']*1024);
$ret['error'] = sprintf($lang->error_reachedattachquota, $friendlyquota);
return $ret;
}
}
// Check if an attachment with this name is already in the post
$query = $db->simple_select(TABLE_PREFIX."attachments", "*", "filename='".$db->escape_string($attachment['name'])."' AND (posthash='$posthash' OR (pid='$pid' AND pid!='0'))");
$prevattach = $db->fetch_array($query);
if($prevattach['aid'])
{
$ret['error'] = $lang->error_alreadyuploaded;
return $ret;
}
// All seems to be good, lets move the attachment!
$filename = "post_".$mybb->user['uid']."_".time().".attach";
$file = upload_file($attachment, $mybb->settings['uploadspath'], $filename);
if($file['error'])
{
$ret['error'] = $lang->error_uploadfailed.$lang->error_uploadfailed_detail;
switch($file['error'])
{
case 1:
$ret['error'] .= $lang->error_uploadfailed_nothingtomove;
break;
case 2:
$ret['error'] .= $lang->error_uploadfailed_movefailed;
break;
}
return $ret;
}
// Lets just double check that it exists
if(!file_exists($mybb->settings['uploadspath']."/".$filename))
{
$ret['error'] = $lang->error_uploadfailed.$lang->error_uploadfailed_detail.$lang->error_uploadfailed_lost;
return $ret;
}
// Generate the array for the insert_query
$attacharray = array(
"pid" => intval($pid),
"posthash" => $posthash,
"uid" => $mybb->user['uid'],
"filename" => $db->escape_string($file['original_filename']),
"filetype" => $db->escape_string($file['type']),
"filesize" => intval($file['size']),
"attachname" => $filename,
"downloads" => 0,
);
// If we're uploading an image, check the MIME type compared to the image type and attempt to generate a thumbnail
if($ext == "gif" || $ext == "png" || $ext == "jpg" || $ext == "jpeg" || $ext == "jpe")
{
// Check a list of known MIME types to establish what kind of image we're uploading
switch(strtolower($file['type']))
{
case "image/gif":
$img_type = 1;
break;
case "image/jpeg":
case "image/x-jpg":
case "image/x-jpeg":
case "image/pjpeg":
case "image/jpg":
$img_type = 2;
break;
case "image/png":
case "image/x-png":
$img_type = 3;
break;
default:
$img_type = 0;
}
// Check if the uploaded file type matches the correct image type (returned by getimagesize)
$img_dimensions = @getimagesize($mybb->settings['uploadspath']."/".$filename);
if(!is_array($img_dimensions) || $img_dimensions[2] != $img_type)
{
@unlink($mybb->settings['uploadspath']."/".$filename);
$ret['error'] = $lang->error_uploadfailed;
return $ret;
}
require_once MYBB_ROOT."inc/functions_image.php";
$thumbname = str_replace(".attach", "_thumb.$ext", $filename);
$thumbnail = generate_thumbnail($mybb->settings['uploadspath']."/".$filename, $mybb->settings['uploadspath'], $thumbname, $mybb->settings['attachthumbh'], $mybb->settings['attachthumbw']);
if($thumbnail['filename'])
{
$attacharray['thumbnail'] = $thumbnail['filename'];
}
elseif($thumbnail['code'] == 4)
{
$attacharray['thumbnail'] = "SMALL";
}
}
if($forum['modattachments'] == "yes" && is_moderator($forum['fid'], "", $mybb->user['uid']) != "yes")
{
$attacharray['visible'] = 0;
}
else
{
$attacharray['visible'] = 1;
}
$db->insert_query(TABLE_PREFIX."attachments", $attacharray);
if($attacharray['pid'] > 0)
{
$post = get_post($attacharray['pid']);
update_thread_counters($post['tid'], array("attachmentcount" => +1));
}
$aid = $db->insert_id();
$ret['aid'] = $aid;
return $ret;
}
/**
* Actually move a file to the uploads directory
*
* @param array The PHP $_FILE array for the file
* @param string The path to save the file in
* @param string The filename for the file (if blank, current is used)
*/
function upload_file($file, $path, $filename="")
{
if(empty($file['name']) || $file['name'] == "none" || $file['size'] < 1)
{
$upload['error'] = 1;
return $upload;
}
if(!$filename)
{
$filename = $file['name'];
}
$upload['original_filename'] = preg_replace("#/$#", "", $file['name']); // Make the filename safe
$filename = preg_replace("#/$#", "", $filename); // Make the filename safe
$moved = @move_uploaded_file($file['tmp_name'], $path."/".$filename);
if(!$moved)
{
$upload['error'] = 2;
return $upload;
}
@chmod($path."/".$filename, 0777);
$upload['filename'] = $filename;
$upload['path'] = $path;
$upload['type'] = $file['type'];
$upload['size'] = $file['size'];
return $upload;
}
?>
![[Bild: banner.png]](https://www.mybb.de/files/images/banner.png)
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