I have a webapp that simulates a terminal. Every command is posted via AJAX using the following script (portion):
AJAX/jQuery
$.post("sec/cmd_process.php", { n : n } )
.done(function(data){
output.append(display(data));
});
If the user types download log
into the terminal, the following script - on sec/cmd_process.php
is executed:
PHP
if(isset($_POST['n'])){
echo $_POST['n'];
$t = explode(' ', $_POST['n']);
if(strtolower($t[0])=='download'){
if(!isset($t[1])) shout_error("No download specified");
//Download Log
elseif($t[1]=='log'){
$stmt = $dbh->prepare("SELECT * FROM `tap_log` ORDER BY `time`");
$stmt->execute();
$rows = $stmt->fetchAll(PDO::FETCH_ASSOC);
foreach($rows as $row) {
$user = user_by_id($row['user']);
$data.= "{$row['time']} - User {$user['id']} ({$user['name1']} {$user['name2']}) - {$row['information']} ({$row['subject']})".PHP_EOL;
}
$handle = fopen('log.txt','w+');
fwrite($handle, $data);
$path = 'log.txt';
header('Content-Transfer-Encoding: binary');
header('Last-Modified: '.gmdate('D, d M Y H:i:s', filemtime($path)).' GMT');
header('Accept-Ranges: bytes');
header('Content-Length:'.filesize($path));
header('Content-Encoding: none');
header('Content-Disposition: attachment; filename='.$path);
readfile($path);
fclose($handle);
}
}
}
What I want to happen is for the generated file, log.txt
, is downloaded via the Save As... dialog. This code works if you directly visit a PHP page with those headers, but how can I make it work through jQuery/AJAX?