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<?php
/* This was tested with this interface, where PWD the primary key from the working directory is:
<!DOCTYPE html>
<form method='post' action='/upload.php' enctype="multipart/form-data">
<p>File :<input name="userfile" type="file" size="500000000" maxlength="100000000000000"></p>
<p>PWD: <input type='text' name='pwd'></p><!-- an INTEGER!! -->
<p>Share: <input type='text' name='share'>
<p><input type='submit' name='submit' value='upload'></p>
</form>
*/
function database_upload($db, $parentdir, $owner, $filename, $folder, $mime, $size, $share, $filehash){
if($db->exec("
BEGIN TRANSACTION;
INSERT INTO files (id, parent, owner, name, folder, mime, size, share, hash) VALUES (NULL, " . $parentdir . ", " . $owner . ", '" . $filename . "', '" . $folder . "', '" . $mime . "', '" . $size . "', '" . $share ."', '" . $filehash . "');
COMMIT;
")){
return true;
} else {
return false;
}
}
function upload($db){
if(!$_SESSION["login"]){
return UPLOAD_LOGIN;
}
if($_FILES["userfile"]["error"] > 0 || !$_FILES['userfile']['size'] > 0 || empty($_FILES['userfile']['size'])){
return UPLOAD_UPLOAD;
}
$parentdir = SQLite3::escapeString("$_POST[pwd]");
if(!preg_match("/[0-9]+/", $parentdir)){
return UPLOAD_PARENTFOLDER;
}
$ownername = SQLite3::escapeString($_SESSION['username']);
$owner_db = $db->query("SELECT id FROM user WHERE name='" . $ownername . "';");
$owner_ar = $owner_db->fetchArray(SQLITE3_NUM);
$owner = $owner_ar[0];
$overall_size_db = $db->query("SELECT size FROM files WHERE owner=" . $owner . " AND size > 0;");
$overall_size = 0;
$count = 0;
while($row = $overall_size_db->fetchArray(SQLITE3_NUM)){
$overall_size = $overall_size + $row[$count];
$count++;
}
if($overall_size > 2147483648){ // == 2GB
return UPLOAD_QUOTA;
}
$filename = $_FILES['userfile']['name'];
$folder = "FILE";
$mime = $_FILES['userfile']['type'];
$size = $_FILES['userfile']['size'];
$share = SQLite3::escapeString($_POST['share']);
$uploaddir = "../files/";
//$filehash = hash_file("md5", $uploaddir . $filename);
$filehash = hash_file("md5", $_FILES['userfile']['tmp_name']);
$hashtest_db = $db->query("SELECT hash FROM files WHERE hash='" . $filehash ."';");
$hashtest_ar = $hashtest_db->fetchArray(SQLITE3_NUM);
if(empty($hashtest_ar[0])){
if(move_uploaded_file($_FILES['userfile']['tmp_name'], $uploaddir . $_FILES['userfile']['name'])){
if(database_upload($db, $parentdir, $owner, $filename, $folder, $mime, $size, $share, $filehash)){
$gzfile = $uploaddir . $filehash . ".gz";
$fp = gzopen($gzfile, 'w9');
if(!gzwrite($fp, file_get_contents($uploaddir . $filename))){
return UPLOAD_FILE_HANDLING;
}
if(!gzclose($fp)){
return UPLOAD_FILE_HANDLING;
}
if(!unlink($uploaddir . $filename)){
return UPLOAD_FILE_HANDLING;
}
return UPLOAD_SUCCESS;
} else {
return UPLOAD_DATABASE;
}
} else {
return UPLOAD_MOVING;
}
} else {
$dupl_db = $db->query("SELECT parent FROM files WHERE hash='" . $filehash . "';");
while($row = $dupl_db->fetchArray(SQLITE3_NUM)){
if($row[0] == $parentdir){
return UPLOAD_DUPLICATE;
}
}
if(!database_upload($db, $parentdir, $owner, $filename, $folder, $mime, $size, $share, $filehash)){
return UPLOAD_DATABASE;
}
if(!unlink($_FILES['userfile']['tmp_name'])){
return UPLOAD_FILE_HANDLING;
}
return UPLOAD_SUCCESS;
}
}
//not used atm
//function web_upload($db){
// $url = $_POST["url"];
// if(preg_match("/^((https?|ftp)?://|www\.|ftp\.)?([-a-z0-9+&@#/%?=~_|!:,.;]+\.)+[a-z]{2}[a-z]*/i", $url)){
// echo "hyperlink detected";
// } else {
// echo "no hyperlink";
// }
//}
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