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tell browser not to cache permission denied (private) photos so that after authenticating we don't have to fight the browser - plus more prvgroup work

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friendica 2012-05-17 19:59:46 -07:00
commit 7cfa7a7671
2 changed files with 22 additions and 5 deletions
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21
mod/photo.php
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@ -28,6 +28,8 @@ function photo_init(&$a) {
}
}*/
$prvcachecontrol = false;
switch($a->argc) {
case 4:
$person = $a->argv[3];
@ -134,6 +136,7 @@ function photo_init(&$a) {
);
if(count($r)) {
$data = file_get_contents('images/nosign.jpg');
$prvcachecontrol = true;
}
}
}
@ -179,8 +182,22 @@ function photo_init(&$a) {
}
header("Content-type: image/jpeg");
header("Expires: " . gmdate("D, d M Y H:i:s", time() + (3600*24)) . " GMT");
header("Cache-Control: max-age=" . (3600*24));
if($prvcachecontrol) {
// it is a private photo that they have no permission to view.
// tell the browser not to cache it, in case they authenticate
// and subsequently have permission to see it
header("Cache-Control: no-store, no-cache, must-revalidate");
}
else {
header("Expires: " . gmdate("D, d M Y H:i:s", time() + (3600*24)) . " GMT");
header("Cache-Control: max-age=" . (3600*24));
}
echo $data;
killme();
// NOTREACHED