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- Make the whole PHP output non-cacheable (#1487797)

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1 parent f8ca748 commit 9e54e6fd455326185b54b5e2cb1b7936c7817670 @alecpl alecpl committed Sep 23, 2011
Showing with 17 additions and 62 deletions.
  1. +4 −1 index.php
  2. +13 −56 program/include/rcube_shared.inc
  3. +0 −1 program/steps/addressbook/export.inc
  4. +0 −2 program/steps/mail/get.inc
  5. +0 −2 program/steps/mail/show.inc
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@@ -33,6 +33,9 @@
// init application, start session, init output class, etc.
$RCMAIL = rcmail::get_instance();
+// Make the whole PHP output non-cacheable (#1487797)
+send_nocacheing_headers();
+
// turn on output buffering
ob_start();
@@ -177,7 +180,7 @@
)
);
}
-
+
if ($session_error || $_REQUEST['_err'] == 'session')
$OUTPUT->show_message('sessionerror', 'error', null, true, -1);
@@ -22,7 +22,7 @@
/**
* Roundcube shared functions
- *
+ *
* @package Core
*/
@@ -70,50 +70,6 @@ function send_future_expire_header($offset=2600000)
/**
- * Check request for If-Modified-Since and send an according response.
- * This will terminate the current script if headers match the given values
- *
- * @param int Modified date as unix timestamp
- * @param string Etag value for caching
- */
-function send_modified_header($mdate, $etag=null, $skip_check=false)
-{
- if (headers_sent())
- return;
-
- $iscached = false;
- $etag = $etag ? "\"$etag\"" : null;
-
- if (!$skip_check)
- {
- if ($_SERVER['HTTP_IF_MODIFIED_SINCE'] && strtotime($_SERVER['HTTP_IF_MODIFIED_SINCE']) >= $mdate)
- $iscached = true;
-
- if ($etag)
- $iscached = ($_SERVER['HTTP_IF_NONE_MATCH'] == $etag);
- }
-
- if ($iscached)
- header("HTTP/1.x 304 Not Modified");
- else
- header("Last-Modified: ".gmdate("D, d M Y H:i:s", $mdate)." GMT");
-
- header("Cache-Control: private, must-revalidate, max-age=0");
- header("Expires: ");
- header("Pragma: ");
-
- if ($etag)
- header("Etag: $etag");
-
- if ($iscached)
- {
- ob_end_clean();
- exit;
- }
-}
-
-
-/**
* Similar function as in_array() but case-insensitive
*
* @param mixed Needle value
@@ -126,7 +82,7 @@ function in_array_nocase($needle, $haystack)
foreach ($haystack as $value)
if ($needle===mb_strtolower($value))
return true;
-
+
return false;
}
@@ -218,7 +174,7 @@ function make_absolute_url($path, $base_url)
{
$host_url = $base_url;
$abs_path = $path;
-
+
// check if path is an absolute URL
if (preg_match('/^[fhtps]+:\/\//', $path))
return $path;
@@ -325,7 +281,7 @@ function rc_request_header($name)
}
return $hdrs[$key];
- }
+}
/**
@@ -344,7 +300,7 @@ function unslashify($str)
{
return preg_replace('/\/$/', '', $str);
}
-
+
/**
* Delete all files within a folder
@@ -374,7 +330,7 @@ function clear_directory($dir_path)
* @return int Unix timestamp
*/
function get_offset_time($offset_str, $factor=1)
- {
+{
if (preg_match('/^([0-9]+)\s*([smhdw])/i', $offset_str, $regs))
{
$amount = (int)$regs[1];
@@ -385,7 +341,7 @@ function get_offset_time($offset_str, $factor=1)
$amount = (int)$offset_str;
$unit = 's';
}
-
+
$ts = mktime();
switch ($unit)
{
@@ -418,7 +374,7 @@ function get_offset_time($offset_str, $factor=1)
function abbreviate_string($str, $maxlength, $place_holder='...', $ending=false)
{
$length = mb_strlen($str);
-
+
if ($length > $maxlength)
{
if ($ending)
@@ -433,6 +389,7 @@ function abbreviate_string($str, $maxlength, $place_holder='...', $ending=false)
return $str;
}
+
/**
* A method to guess the mime_type of an attachment.
*
@@ -547,7 +504,7 @@ function rc_utf8_clean($input)
$input[$idx] = rc_utf8_clean($val);
return $input;
}
-
+
if (!is_string($input) || $input == '')
return $input;
@@ -569,7 +526,7 @@ function rc_utf8_clean($input)
'|[\xF1-\xF3][\x80-\xBF][\x80-\xBF][\x80-\xBF]'.// UTF8-4
'|\xF4[\x80-\x8F][\x80-\xBF][\x80-\xBF]'. // UTF8-4
')$/';
-
+
$seq = '';
$out = '';
@@ -640,7 +597,7 @@ function rcube_explode_quoted_string($delimiter, $string)
$p = $i + 1;
}
}
-
+
$result[] = substr($string, $p);
return $result;
}
@@ -655,7 +612,7 @@ function rcube_explode_quoted_string($delimiter, $string)
function array_keys_recursive($array)
{
$keys = array();
-
+
if (!empty($array))
foreach ($array as $key => $child) {
$keys[] = $key;
@@ -66,7 +66,6 @@ else {
}
// send downlaod headers
-send_nocacheing_headers();
header('Content-Type: text/x-vcard; charset='.RCMAIL_CHARSET);
header('Content-Disposition: attachment; filename="rcube_contacts.vcf"');
@@ -64,8 +64,6 @@ if (!empty($_GET['_uid'])) {
$MESSAGE = new rcube_message(get_input_value('_uid', RCUBE_INPUT_GET));
}
-send_nocacheing_headers();
-
// show part page
if (!empty($_GET['_frame'])) {
$OUTPUT->send('messagepart');
@@ -30,8 +30,6 @@ if ($uid = get_input_value('_uid', RCUBE_INPUT_GET)) {
rcmail_message_error($uid);
}
- send_nocacheing_headers();
-
$mbox_name = $IMAP->get_mailbox_name();
// show images?

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