// The data that goes across the wire will look something like this
/*
POST /geolocation.json/subscriptions HTTP/1.1
Host: 192.168.254.254:8088
Content-Type: application/json
Content-Length: 288
Connection: keep-alive
{
"params": {
"foo": "module",
"bar": "specific",
"baz": "properties"
},
"protocol": "http:",
"hostname": "192.168.254.100",
"pathname": "/geolocation.json?this_is_sent_to_your_listener",
"port": "4444",
"filter": {
"minWait": 1000,
"maxWait": 1000
}
}
*/
static Subscription Subscribe(SubscriptionHost sensor, SubscriptionTarget target) {
string json;
string url;
byte[] postBody;
StringBuilder sb = new StringBuilder();
byte[] buf = new byte[8192];
Stream postBodyWriteStream;
HttpWebRequest req;
HttpWebResponse res;
Stream resStream;
int responseByteCount;
/*
* Format the Request POST Body, which contains information about the target
*/
target.Params = new JObject(
new JProperty("foo", "module")
, new JProperty("bar", "specific")
, new JProperty("baz", "properties")
);
target.Filter.MinWait = 1000;
target.Filter.MaxWait = 1000;
if ("http:" == target.Protocol.ToLower()) {
target.Pathname = sensor.Pathname + "?this_is_sent_to_your_listener";
}
json = JsonConvert.SerializeObject(
target
, Formatting.Indented
// use normal JSON lowerCamelCase names instead of C# UpperCamelCase
, new JsonSerializerSettings { ContractResolver = new CamelCasePropertyNamesContractResolver() }
);
/*
* Create the Request
*/
// Form URL and POST Body
url = "http://" + sensor.Host + sensor.Pathname + "/subscriptions";
postBody = System.Text.Encoding.UTF8.GetBytes(json);
// Form Request and Headers
Console.WriteLine("-------------");
Console.WriteLine("Sending to " + url + "...");
Console.WriteLine("-------------");
Console.WriteLine("POST " + target.Pathname + " HTTP/1.1");
Console.WriteLine("Host: " + sensor.Host);
Console.WriteLine("Content-Type: application/json");
Console.WriteLine("Content-Length: " + postBody.Length.ToString());
Console.WriteLine("");
req = (HttpWebRequest)WebRequest.Create(url);
req.Method = "POST";
req.ContentType = "application/json";
req.ContentLength = postBody.Length;
// Send the Body (headers are sent automatically at start of write)
Console.WriteLine(json);
Console.WriteLine("-------------");
postBodyWriteStream = req.GetRequestStream();
postBodyWriteStream.Write(postBody, 0, postBody.Length);
/*
* Handle the Response
*/
res = (HttpWebResponse)req.GetResponse();
resStream = res.GetResponseStream();
responseByteCount = 0;
while ((responseByteCount = resStream.Read(buf, 0, buf.Length)) > 0) {
sb.Append(Encoding.UTF8.GetString(buf, 0, responseByteCount));
}
// just viewing the response for now...
Console.WriteLine("Getting response...");
Console.WriteLine("-------------");
Console.WriteLine(sb);
Console.WriteLine("-------------");
Console.WriteLine();
return new Subscription();
}
static void Main(string[] args) {
if (args.Length != 5) {
Console.WriteLine("Usage: subscription.exe <sensor-host> <sensor-resource> <target-proto> <target-hostname> <target-port>");
Console.WriteLine("Usage: subscription.exe 192.168.254.254:80 /geolocation.json http 192.168.254.100 4444");
return;
}
SubscriptionHost sensor = new SubscriptionHost();
SubscriptionTarget target = new SubscriptionTarget();
Subscription subscription;
sensor.Host = args[0];
sensor.Pathname = args[1];
target.Protocol = args[2];
target.Hostname = args[3];
target.Port = args[4];
/*
* Adjusting the user's commandline input for SubscriptionTarget
*/
if (!target.Protocol.EndsWith(":")) {
// normalize the protocol... because the standard is stupid and expects a trailing ":"
target.Protocol = target.Protocol + ":";
}
/*
* Adjusting the user's commandline input for SubscriptionHost
*/
if (sensor.Host.StartsWith("http://")) {
// any use of http is superfluous
sensor.Host = sensor.Host.Substring(0, "http://".Length - 1);
}
if (sensor.Host.EndsWith("/")) {
// remove trailing slash if present
sensor.Host = sensor.Host.Substring(0, sensor.Host.Length - 1);
}
if (!sensor.Pathname.StartsWith("/")) {
// add leading "/" if absent
sensor.Pathname = "/" + sensor.Pathname;
}
if (!sensor.Pathname.Contains(".")) {
// add ".json" if no extension is present
sensor.Pathname += ".json";
}
/*
* Now time for the heavy-lifting
*/
//Console.WriteLine("Subscribing...");
subscription = Subscribe(sensor, target);
Console.WriteLine("Waiting 15 seconds (so you can inspect the subscription)...");
System.Threading.Thread.Sleep(15000);
Console.WriteLine("Unsubscribing...");
Unsubscribe(sensor, subscription);
}
static void Unsubscribe(SubscriptionHost sensor, Subscription subscription) {
// TODO
}
// The data that goes across the wire will look something like this
/*
* POST /geolocation.json/subscriptions HTTP/1.1
* Host: 192.168.254.254:8088
* Content-Type: application/json
* Content-Length: 288
* Connection: keep-alive
*
* {
* "params": {
* "foo": "module",
* "bar": "specific",
* "baz": "properties"
* },
* "protocol": "http:",
* "hostname": "192.168.254.100",
* "pathname": "/geolocation.json?this_is_sent_to_your_listener",
* "port": "4444",
* "filter": {
* "minWait": 1000,
* "maxWait": 1000
* }
* }
*/
static Subscription Subscribe(SubscriptionHost sensor, SubscriptionTarget target)
{
string json;
string url;
byte[] postBody;
StringBuilder sb = new StringBuilder();
byte[] buf = new byte[8192];
Stream postBodyWriteStream;
HttpWebRequest req;
HttpWebResponse res;
Stream resStream;
int responseByteCount;
/*
* Format the Request POST Body, which contains information about the target
*/
target.Params = new JObject(
new JProperty("foo", "module")
, new JProperty("bar", "specific")
, new JProperty("baz", "properties")
);
target.Filter.MinWait = 1000;
target.Filter.MaxWait = 1000;
if ("http:" == target.Protocol.ToLower())
{
target.Pathname = sensor.Pathname + "?this_is_sent_to_your_listener";
}
json = JsonConvert.SerializeObject(
target
, Formatting.Indented
// use normal JSON lowerCamelCase names instead of C# UpperCamelCase
, new JsonSerializerSettings {
ContractResolver = new CamelCasePropertyNamesContractResolver()
}
);
/*
* Create the Request
*/
// Form URL and POST Body
url = "http://" + sensor.Host + sensor.Pathname + "/subscriptions";
postBody = System.Text.Encoding.UTF8.GetBytes(json);
// Form Request and Headers
Console.WriteLine("-------------");
Console.WriteLine("Sending to " + url + "...");
Console.WriteLine("-------------");
Console.WriteLine("POST " + target.Pathname + " HTTP/1.1");
Console.WriteLine("Host: " + sensor.Host);
Console.WriteLine("Content-Type: application/json");
Console.WriteLine("Content-Length: " + postBody.Length.ToString());
Console.WriteLine("");
req = (HttpWebRequest)WebRequest.Create(url);
req.Method = "POST";
req.ContentType = "application/json";
req.ContentLength = postBody.Length;
// Send the Body (headers are sent automatically at start of write)
Console.WriteLine(json);
Console.WriteLine("-------------");
postBodyWriteStream = req.GetRequestStream();
postBodyWriteStream.Write(postBody, 0, postBody.Length);
/*
* Handle the Response
*/
res = (HttpWebResponse)req.GetResponse();
resStream = res.GetResponseStream();
responseByteCount = 0;
while ((responseByteCount = resStream.Read(buf, 0, buf.Length)) > 0)
{
sb.Append(Encoding.UTF8.GetString(buf, 0, responseByteCount));
}
// just viewing the response for now...
Console.WriteLine("Getting response...");
Console.WriteLine("-------------");
Console.WriteLine(sb);
Console.WriteLine("-------------");
Console.WriteLine();
return(new Subscription());
}
static void Main(string[] args)
{
if (args.Length != 5)
{
Console.WriteLine("Usage: subscription.exe <sensor-host> <sensor-resource> <target-proto> <target-hostname> <target-port>");
Console.WriteLine("Usage: subscription.exe 192.168.254.254:80 /geolocation.json http 192.168.254.100 4444");
return;
}
SubscriptionHost sensor = new SubscriptionHost();
SubscriptionTarget target = new SubscriptionTarget();
Subscription subscription;
sensor.Host = args[0];
sensor.Pathname = args[1];
target.Protocol = args[2];
target.Hostname = args[3];
target.Port = args[4];
/*
* Adjusting the user's commandline input for SubscriptionTarget
*/
if (!target.Protocol.EndsWith(":"))
{
// normalize the protocol... because the standard is stupid and expects a trailing ":"
target.Protocol = target.Protocol + ":";
}
/*
* Adjusting the user's commandline input for SubscriptionHost
*/
if (sensor.Host.StartsWith("http://"))
{
// any use of http is superfluous
sensor.Host = sensor.Host.Substring(0, "http://".Length - 1);
}
if (sensor.Host.EndsWith("/"))
{
// remove trailing slash if present
sensor.Host = sensor.Host.Substring(0, sensor.Host.Length - 1);
}
if (!sensor.Pathname.StartsWith("/"))
{
// add leading "/" if absent
sensor.Pathname = "/" + sensor.Pathname;
}
if (!sensor.Pathname.Contains("."))
{
// add ".json" if no extension is present
sensor.Pathname += ".json";
}
/*
* Now time for the heavy-lifting
*/
//Console.WriteLine("Subscribing...");
subscription = Subscribe(sensor, target);
Console.WriteLine("Waiting 15 seconds (so you can inspect the subscription)...");
System.Threading.Thread.Sleep(15000);
Console.WriteLine("Unsubscribing...");
Unsubscribe(sensor, subscription);
}
static void Unsubscribe(SubscriptionHost sensor, Subscription subscription)
{
// TODO
}