# matt@xxxxxxxxxxxx / 2006-10-25 20:35:29 +1300:
> I am writing a php website for users to edit a global whitelist for Spam
> Assassin - all is going fairly well considering I hadn't ever used php until
> a couple of days ago. My problem is I need to restart AMAVISD-NEW after the
> user saves the changes. I've acheived this using SUDO and giving the
> www-data users the rights to SUDO amavisd-new. My problem is simply a user
> friendlyness issue - below is the code I'm running -
>
> if(isset($_POST["SAVE"]))
> {
> file_put_contents("/etc/spamassassin/whitelist.cf", $_SESSION[whitelist]);
> $_SESSION[count]=0;
> echo "Restarting the service.........</A></P>";
> exec('sudo /usr/sbin/amavisd-new reload');
> echo "Service was restarted...... Returning to the main page.";
> sleep(4)
> echo '<meta http-equiv="refresh" content="0;URL=index.php">';
> }
>
> The problem is that the Restarting the Service dialogue doesn't get
> displayed until AFTER the Service Restarts even though it appears before the
> shell_exec command. I've tried exec and passthru and its always the same - I
> want it to display the "Service was restarted" - wait for 4 seconds and then
> redirect to the main page. Instead nothing happens on screen for the browser
> user until the service has restarted at which point they are returned to
> index.php - its as if the exec and the sleep and the refresh to index.php
> are all kind of running concurently.
>
> Can someone PLEASE tell me what I'm doing wrong - or shed light on how I
> should do this.
You're forgetting that the server, the browser, and anything between
may cache the data into chunks of any size.
Even if the browser /did/ receive the data "in real time" your code
would be wrong: you're ignoring the basic structure of a HTML
document, and any browser worth that label should ignore the meta
tag.
Do this instead:
// ...
file_put_contents("/etc/spamassassin/whitelist.cf", $_SESSION[whitelist]);
$_SESSION[count]=0;
exec('sudo /usr/sbin/amavisd-new reload');
?>
<html>
<head>
<meta http-equiv="refresh" content="4;URL=index.php">
</head>
<body>
Service was restarted...... Returning to the main page.
</body>
--
How many Vietnam vets does it take to screw in a light bulb?
You don't know, man. You don't KNOW.
Cause you weren't THERE. http://bash.org/?255991
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