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improved cache control for attachments

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This commit is contained in:
hyung-hwan 2011-07-15 07:31:38 +00:00
parent c4f18e49f4
commit e9cb883001
1 changed files with 32 additions and 15 deletions
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47
codepot/src/codepot/controllers/wiki.php
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@ -38,7 +38,7 @@ class Wiki extends Controller
{
$data['message'] = 'DATABASE ERROR';
$this->load->view ($this->VIEW_ERROR, $data);
}
}
else if ($project === NULL)
{
$data['message'] =
@ -261,22 +261,39 @@ class Wiki extends Controller
$mtime = @filemtime ($path);
if ($mtime === FALSE) $mtime = time();
header ('Content-Type: ' . mime_content_type($path));
header ('Expires: ' . gmdate("D, d M Y H:i:s", time() + 60*60*24*30) . ' GMT'); // 30days
header ('Last-Modified: ' . gmdate("D, d M Y H:i:s", $mtime) . ' GMT');
header ("Content-Disposition: filename={$name}");
$len = @filesize($path);
if ($len !== FALSE) header("Content-Length: {$len}");
//header("Content-Transfer-Encoding: binary");
flush ();
$x = @readfile($path);
if ($x === FALSE)
header ('Content-Type: ' . mime_content_type($path));
//header ('Expires: ' . gmdate("D, d M Y H:i:s", time() + 60*60*24*30) . ' GMT'); // 30days
//header ('Expires: -1');
//header ('Cache-Control: must-revalidate, private');
header ('Cache-Control: max-age=0');
$reqheaders = function_exists('apache_request_headers')? apache_request_headers(): array();
if (isset($reqheaders['If-Modified-Since']) &&
strtotime($reqheaders['If-Modified-Since']) >= $mtime)
{
$data['project'] = $project;
$data['message'] = sprintf (
$this->lang->line('WIKI_MSG_FAILED_TO_READ_ATTACHMENT'), $name);
$this->load->view ($this->VIEW_ERROR, $data);
header('Last-Modified: '.gmdate('D, d M Y H:i:s', $mtime).' GMT', true, 304);
flush ();
}
else
{
header ('Last-Modified: ' . gmdate("D, d M Y H:i:s", $mtime) . ' GMT');
header ("Content-Disposition: filename={$name}");
$len = @filesize($path);
if ($len !== FALSE) header("Content-Length: {$len}");
//header("Content-Transfer-Encoding: binary");
flush ();
$x = @readfile($path);
if ($x === FALSE)
{
$data['project'] = $project;
$data['message'] = sprintf (
$this->lang->line('WIKI_MSG_FAILED_TO_READ_ATTACHMENT'), $name);
$this->load->view ($this->VIEW_ERROR, $data);
}
}
}
}