function Aastra_check_signature_Asterisk($user)
{
global $AA_FREEPBX_MODE;
global $AA_PHONE_SIGNATURE;
# Return if device/user mode
if ($AA_FREEPBX_MODE == '2' or !$AA_PHONE_SIGNATURE) {
return;
}
# Retrieve stored signature
$signature = Aastra_read_signature($user);
# Maybe a first time
if ($signature['signature'] == '') {
# Store the signature
Aastra_store_signature($user);
} else {
# Check signature
if (Aastra_getphone_fingerprint() != $signature['signature']) {
# Debug
Aastra_debug('function=Aastra_check_signature, Phone fingerprint mismatch. Stored=' . $signature['signature'] . ' Current= ' . Aastra_getphone_fingerprint());
# Display Error
$output = "<AastraIPPhoneTextScreen>\n";
$output .= "<Title>Authentication Error</Title>\n";
$output .= "<Text>You are not authorized to use this application. Please contact your administrator.</Text>\n";
$output .= "</AastraIPPhoneTextScreen>\n";
header("Content-Type: text/xml");
header("Content-Length: " . strlen($output));
echo $output;
exit;
}
}
}
function Aastra_store_signature($user)
{
# Store the signature
$header = Aastra_decode_HTTP_header();
$signature['mac'] = $header['mac'];
$signature['ip'] = $header['ip'];
$signature['model'] = $header['model'];
$signature['signature'] = Aastra_getphone_fingerprint();
Aastra_save_user_context($user, 'signature', $signature);
}