Here is a simple wrapper to send notifications to Notification Hubs with PHP.
<?php
include 'Notification.php';
class NotificationHub {
const API_VERSION = "?api-version=2013-10";
private $endpoint;
private $hubPath;
private $sasKeyName;
private $sasKeyValue;
function __construct($connectionString, $hubPath) {
$this->hubPath = $hubPath;
$this->parseConnectionString($connectionString);
}
private function parseConnectionString($connectionString) {
$parts = explode(";", $connectionString);
if (sizeof($parts) != 3) {
throw new Exception("Error parsing connection string: " . $connectionString);
}
foreach ($parts as $part) {
if (strpos($part, "Endpoint") === 0) {
$this->endpoint = "https" . substr($part, 11);
} else if (strpos($part, "SharedAccessKeyName") === 0) {
$this->sasKeyName = substr($part, 20);
} else if (strpos($part, "SharedAccessKey") === 0) {
$this->sasKeyValue = substr($part, 16);
}
}
}
private function generateSasToken($uri) {
$targetUri = strtolower(rawurlencode(strtolower($uri)));
$expires = time();
$expiresInMins = 60;
$expires = $expires + $expiresInMins * 60;
$toSign = $targetUri . "\n" . $expires;
$signature = rawurlencode(base64_encode(hash_hmac('sha256', $toSign, $this->sasKeyValue, TRUE)));
$token = "SharedAccessSignature sr=" . $targetUri . "&sig="
. $signature . "&se=" . $expires . "&skn=" . $this->sasKeyName;
return $token;
}
public function broadcastNotification($notification) {
$this->sendNotification($notification, "");
}
public function sendNotification($notification, $tagsOrTagExpression) {
echo $tagsOrTagExpression."<p>";
if (is_array($tagsOrTagExpression)) {
$tagExpression = implode(" || ", $tagsOrTagExpression);
} else {
$tagExpression = $tagsOrTagExpression;
}
# build uri
$uri = $this->endpoint . $this->hubPath . "/messages" . NotificationHub::API_VERSION;
echo $uri."<p>";
$ch = curl_init($uri);
if (in_array($notification->format, ["template", "apple", "gcm"])) {
$contentType = "application/json";
} else {
$contentType = "application/xml";
}
$token = $this->generateSasToken($uri);
$headers = [
'Authorization: '.$token,
'Content-Type: '.$contentType,
'ServiceBusNotification-Format: '.$notification->format
];
if ("" !== $tagExpression) {
$headers[] = 'ServiceBusNotification-Tags: '.$tagExpression;
}
# add headers for other platforms
if (is_array($notification->headers)) {
$headers = array_merge($headers, $notification->headers);
}
curl_setopt_array($ch, array(
CURLOPT_POST => TRUE,
CURLOPT_RETURNTRANSFER => TRUE,
CURLOPT_SSL_VERIFYPEER => FALSE,
CURLOPT_HTTPHEADER => $headers,
CURLOPT_POSTFIELDS => $notification->payload
));
// Send the request
$response = curl_exec($ch);
// Check for errors
if($response === FALSE){
throw new Exception(curl_error($ch));
}
$info = curl_getinfo($ch);
if ($info['http_code'] <> 201) {
throw new Exception('Error sending notificaiton: '. $info['http_code'] . ' msg: ' . $response);
}
//print_r($info);
//echo $response;
}
}
?>
I do not know if you wanted to send pushes or to do registration management. It is not hard to modify the above to do registration management as shown in the NH REST APIs (remember the order in the xml documents matters!): http://msdn.microsoft.com/en-us/library/dn223264.aspx.
Let me know if you still run into problems.
Elio