innanzitutto installare Apache2, seguendo le istruzioni di questo sito:
ricordiamoci che per il nostro esempio bisogna anche installare Curl, con il seguente comando sempre via terminale:
sudo apt-get install php5-curl
Quindi creiamo un file PHP nella nostra cartella (quella di base dovrebbe essere /var/www/ ) e lo nominiamo gcm.php
<?php
//Generic php function to send GCM push notification
function sendMessageThroughGCM($registatoin_ids, $message) {
//Google cloud messaging GCM-API url
$url = 'https://android.googleapis.com/gcm/send';
$fields = array(
'registration_ids' => $registatoin_ids,
'data' => $message,
);
// Update your Google Cloud Messaging API Key
define("GOOGLE_API_KEY", "InserisciQuiLaTuaServerKey");
$headers = array(
'Authorization: key=' . GOOGLE_API_KEY,
'Content-Type: application/json'
);
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt ($ch, CURLOPT_SSL_VERIFYHOST, 0);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($fields));
$result = curl_exec($ch);
if ($result === FALSE) {
die('Curl failed: ' . curl_error($ch));
}
curl_close($ch);
return $result;
}
?>
<?php
//Post message to GCM when submitted
$pushStatus = "GCM Status Message will appear here";
if(!empty($_GET["push"])) {
$gcmRegID = file_get_contents("Id.txt");
$pushMessage = $_POST["message"];
if (isset($gcmRegID) && isset($pushMessage)) {
$gcmRegIds = array($gcmRegID);
$message = array("m" => $pushMessage);
$pushStatus = sendMessageThroughGCM($gcmRegIds, $message);
}
}
//Get Reg ID sent from Android App and store it in text file
if(!empty($_GET["shareRegId"])) {
$gcmRegID = $_POST["regId"];
file_put_contents("Id.txt",$gcmRegID);
echo "Done!";
exit;
}
?>
<html>
<head>
<title>Google Cloud Messaging (GCM) in PHP</title>
<style>
div#formdiv, p#status{
text-align: center;
background-color: #FFFFCC;
border: 2px solid #FFCC00;
padding: 10px;
}
textarea{
border: 2px solid #FFCC00;
margin-bottom: 10px;
text-align: center;
padding: 10px;
font-size: 25px;
font-weight: bold;
}
input{
background-color: #FFCC00;
border: 5px solid #fff;
padding: 10px;
cursor: pointer;
color: #fff;
font-weight: bold;
}
</style>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script>
$(function(){
$("textarea").val("");
});
function checkTextAreaLen(){
var msgLength = $.trim($("textarea").val()).length;
if(msgLength == 0){
alert("Please enter message before hitting submit button");
return false;
}else{
return true;
}
}
</script>
</head>
<body>
<div id="formdiv">
<h1>Google Cloud Messaging (GCM) in PHP</h1>
<form method="post" action="/gcm/gcm.php/?push=true" onsubmit="return checkTextAreaLen()">
<textarea rows="5" name="message" cols="45" placeholder="Message to send via GCM"></textarea> <br/>
<input type="submit" value="Invia le notifiche tramite GCM" />
</form>
</div>
<p id="status">
<?php echo $pushStatus; ?>
</p>
</body>
</html>
<?php
//Generic php function to send GCM push notification
function sendMessageThroughGCM($registatoin_ids, $message) {
//Google cloud messaging GCM-API url
$url = 'https://android.googleapis.com/gcm/send';
$fields = array(
'registration_ids' => $registatoin_ids,
'data' => $message,
);
// Update your Google Cloud Messaging API Key
define("GOOGLE_API_KEY", "InserisciQuiLaTuaServerKey");
$headers = array(
'Authorization: key=' . GOOGLE_API_KEY,
'Content-Type: application/json'
);
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt ($ch, CURLOPT_SSL_VERIFYHOST, 0);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($fields));
$result = curl_exec($ch);
if ($result === FALSE) {
die('Curl failed: ' . curl_error($ch));
}
curl_close($ch);
return $result;
}
?>
<?php
//Post message to GCM when submitted
$pushStatus = "GCM Status Message will appear here";
if(!empty($_GET["push"])) {
$gcmRegID = file_get_contents("Id.txt");
$pushMessage = $_POST["message"];
if (isset($gcmRegID) && isset($pushMessage)) {
$gcmRegIds = array($gcmRegID);
$message = array("m" => $pushMessage);
$pushStatus = sendMessageThroughGCM($gcmRegIds, $message);
}
}
//Get Reg ID sent from Android App and store it in text file
if(!empty($_GET["shareRegId"])) {
$gcmRegID = $_POST["regId"];
file_put_contents("Id.txt",$gcmRegID);
echo "Done!";
exit;
}
?>
<html>
<head>
<title>Google Cloud Messaging (GCM) in PHP</title>
<style>
div#formdiv, p#status{
text-align: center;
background-color: #FFFFCC;
border: 2px solid #FFCC00;
padding: 10px;
}
textarea{
border: 2px solid #FFCC00;
margin-bottom: 10px;
text-align: center;
padding: 10px;
font-size: 25px;
font-weight: bold;
}
input{
background-color: #FFCC00;
border: 5px solid #fff;
padding: 10px;
cursor: pointer;
color: #fff;
font-weight: bold;
}
</style>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script>
$(function(){
$("textarea").val("");
});
function checkTextAreaLen(){
var msgLength = $.trim($("textarea").val()).length;
if(msgLength == 0){
alert("Please enter message before hitting submit button");
return false;
}else{
return true;
}
}
</script>
</head>
<body>
<div id="formdiv">
<h1>Google Cloud Messaging (GCM) in PHP</h1>
<form method="post" action="/gcm/gcm.php/?push=true" onsubmit="return checkTextAreaLen()">
<textarea rows="5" name="message" cols="45" placeholder="Message to send via GCM"></textarea> <br/>
<input type="submit" value="Invia le notifiche tramite GCM" />
</form>
</div>
<p id="status">
<?php echo $pushStatus; ?>
</p>
</body>
</html>
Nella stessa cartella dovrà esservi un file Id.txt dove dentro vi sarà scritto la key del device autorizzato...
