//attempt to login to KerbalX with the user's auth token. If the token doesn't exist, or is no longer valid the response will be a 401
internal void login(RequestCallback callback)
{
try{
if (File.Exists(KerbalXAPI.token_path))
{
KXAPI.log("Logging into KerbalX.com with Token...");
string current_token = File.ReadAllText(KerbalXAPI.token_path);
authenticate_token(current_token, (resp, code) => {
if (code == 200)
{
KXAPI.log("Logged in");
var resp_data = JSON.Parse(resp);
KerbalXAPI.kx_username = resp_data["username"];
KerbalXAPI.token = current_token;
}
else
{
KXAPI.log("Login token is invalid");
}
callback(resp, code);
});
}
else
{
callback("", 401);
}
}
catch {
callback("", 401);
}
}
//Used in request to url entered by user for image, returns just the content type header info
private IEnumerator transmit(UnityWebRequest request, ImageUrlCheck callback)
{
KXAPI.log("sending request to: " + request.url);
yield return(request.Send());
callback(request.GetResponseHeaders()["Content-Type"]);
}
internal void send(KerbalXAPI api, RequestCallback callback, bool authenticate = true)
{
if (String.IsNullOrEmpty(api.client_version) || String.IsNullOrEmpty(api.client))
{
KXAPI.log("client info has not been set");
return;
}
if (authenticate)
{
if (api.logged_in)
{
set_header("token", KerbalXAPI.token);
}
else
{
KerbalXLoginUI.add_login_callback(api, (login_succsessful) => {
if (login_succsessful)
{
this.send(api, callback, authenticate);
}
});
KerbalXLoginUI.open();
return;
}
}
set_header("MODCLIENT", api.client);
set_header("MODCLIENTVERSION", api.client_version);
set_header("MODCLIENTSIGNITURE", api.client_signiture);
set_header("KSPVERSION", Versioning.GetVersionString());
if (RequestHandler.instance == null)
{
KerbalXAPIHelper.instance.start_request_handler();
}
RequestHandler.instance.send_request(api, request, callback);
}
//nukes the authentication token file and user variables and sets the login gui to enable login again.
internal void logout(RequestCallback callback)
{
token = null;
kx_username = null;
File.Delete(KerbalXAPI.token_path);
callback("", 200);
KXAPI.log("Logged out of KerbalX");
}
//Start the Request Handler
internal void start_request_handler()
{
if (RequestHandler.instance == null)
{
KXAPI.log("starting web request handler");
RequestHandler request_handler = gameObject.AddOrGetComponent <RequestHandler>();
RequestHandler.instance = request_handler;
}
}
//Internal Authentication POST requests
//make request to site to authenticate username and password and get token back
internal void login(string username, string password, RequestCallback callback)
{
KXAPI.log("Logging into KerbalX.com...");
NameValueCollection data = new NameValueCollection()
{
{ "username", username }, { "password", password }
};
RequestHandler.show_401_message = false; //don't show standard 401 error dialog
HTTP.post(url_to("api/login"), data).send(this, (resp, code) => {
if (code == 200)
{
KXAPI.log("Logged in");
var resp_data = JSON.Parse(resp);
KerbalXAPI.token = resp_data["token"];
KerbalXAPI.save_token(resp_data["token"]);
KerbalXAPI.kx_username = resp_data["username"];
}
callback(resp, code);
}, false);
}
//Constructor - create a new instance of KerbalXAPI. Requires mod name and version and generates a checksum of the dll
//that contains the assembly which called new KerbalXAPI(), which will be used as a signature of the mod using the API.
public KerbalXAPI(string mod_name, string mod_version)
{
if (instances.ContainsKey(mod_name))
{
KXAPI.log("An API instance for " + mod_name + " already exists");
instances.Remove(mod_name);
}
instances.Add(mod_name, this);
this.client = mod_name;
this.client_version = mod_version;
//generate checksum of the calling assembly's dll which will act as the mods' signiture
var calling_method = new System.Diagnostics.StackTrace().GetFrame(1).GetMethod();
string caller_file = calling_method.ReflectedType.Assembly.Location;
this.client_signiture = Checksum.from_file(caller_file);
if (mod_name != "KerbalXAPI")
{
KXAPI.log("Instantiating KerbalXAPI for '" + mod_name); // + "'. Sig: " + this.client_signiture);
}
}
//Used in all interacton with KerbalX, called from a Coroutine and handles the response error codes from the site
private IEnumerator transmit(KerbalXAPI api, UnityWebRequest request, RequestCallback callback)
{
// last_request = null;
// last_callback = null;
// api_instance = api;
api.server_error_message = null;
api.failed_to_connect = false;
api.upgrade_required = false;
KXAPI.log("sending request to: " + request.url);
yield return(request.Send());
if (request.isNetworkError) //Request Failed, most likely due to being unable to get a response, therefore no status code
{
api.failed_to_connect = true;
KXAPI.log("request failed: " + request.error);
// last_request = new UnityWebRequest(request.url, request.method); // \ create a copy of the request which is about to be sent
// if(request.method != "GET"){ // | if the request fails because of inability to connect to site
// last_request.uploadHandler = new UploadHandlerRaw(request.uploadHandler.data); // < then try_again() can be used to fire the copied request
// } // | and the user can carry on from where they were when connection was lost.
// last_request.downloadHandler = request.downloadHandler; // | upload and download handlers have to be duplicated too
// last_callback = callback; // / and the callback is also stuffed into a var for reuse.
}
else
{
int status_code = (int)request.responseCode; //server responded - get status code
KXAPI.log("request returned " + status_code + " " + status_codes[status_code.ToString()]);
if (status_code == 500) //KerbalX server error
{
string error_message = "KerbalX server error!!\n" + //default error message incase server doesn't come back with something more helpful
"An error has occurred on KerbalX (it was probably Jebs fault)";
var resp_data = JSON.Parse(request.downloadHandler.text); //read response message and assuming there is one change the error_message
if (!(resp_data["error"] == null || resp_data["error"] == ""))
{
error_message = "KerbalX server error!!\n" + resp_data["error"];
}
KXAPI.log(error_message);
api.server_error_message = error_message; //Set the error_message on KerbalX, any open window will pick this up and render error dialog
callback(request.downloadHandler.text, status_code); //Still call the callback, assumption is all callbacks will test status code for 200 before proceeding, this allows for further handling if needed
}
else if (status_code == 426) //426 - Upgrade Required, only for a major version change that makes past versions incompatible with the site's API
{
api.upgrade_required = true;
var resp_data = JSON.Parse(request.downloadHandler.text);
api.upgrade_required_message = resp_data["message"];
callback("", status_code);
}
else if (status_code == 401) //401s (Unauthorized) - response to the user's token not being recognized.
{
if (RequestHandler.show_401_message == true) //In the case of login/authenticate, the 401 message is not shown (handled by login dialog)
{
api.server_error_message = "Login to KerbalX.com failed";
api.logout((resp, code) => {});
}
callback(request.downloadHandler.text, status_code);
}
else if (status_code == 200 || status_code == 400 || status_code == 422) //Error codes returned for OK and failed validations which are handled by the requesting method
{
callback(request.downloadHandler.text, status_code);
}
else //Unhandled error codes - All other error codes.
{
api.server_error_message = "Error " + status_code + "\n";
var resp_data = JSON.Parse(request.downloadHandler.text);
if (!(resp_data["error"] == null || resp_data["error"] == ""))
{
api.server_error_message += resp_data["error"];
}
else if (!(resp_data["message"] == null || resp_data["message"] == ""))
{
api.server_error_message += resp_data["message"];
}
else
{
api.server_error_message += request.downloadHandler.text;
}
callback(request.downloadHandler.text, status_code);
}
request.Dispose();
RequestHandler.show_401_message = true;
}
}