Getting Live Video Stream from onvif Devices - soap

im trying to get live stream from onvif devices my program searchs and finds cameras IP and onvif Port successfully,but in the next step to get device information i face this error :
there was no endpoint listening at http://192.168.1.89/onvif/device_service that could accept the message.this often cause by an incorrect address or SOAP action.
i dont know what is wrong with my code even i want to get the time and date from the devices there is the same error!
my code is :
private Device deviceChannel = null;
private System.ServiceModel.Channels.Binding binding = null;
private string serverNetworkAddress;
private string serviceAddress;
private string serverUsername = "";
private string serverPassword = "";
InitializeComponent();
serverUsername = OnvifUserTextBox.Text;
serverPassword = OnvifPwdTextBox.Text;
serverNetworkAddress = serverAddrTextBox.Text;
serviceAddress = string.Format("http://{0}/onvif/device_service", serverNetworkAddress);
//Create Binding
binding = CreateBinding();
private static System.ServiceModel.Channels.Binding CreateBinding()
{
HttpTransportBindingElement httpTransport = new HttpTransportBindingElement();
TransportSecurityBindingElement transportSecurity = new TransportSecurityBindingElement();
transportSecurity.EndpointSupportingTokenParameters.SignedEncrypted.Add(
new UsernameTokenParameters());
transportSecurity.AllowInsecureTransport = true;
transportSecurity.IncludeTimestamp = false;
TextMessageEncodingBindingElement me =
new TextMessageEncodingBindingElement(MessageVersion.Soap12, Encoding.UTF8);
return new CustomBinding(transportSecurity, me, httpTransport);
}
private static TChannel GetChannel<TChannel> (System.ServiceModel.Channels.Binding binding,
string serviceAddressText,
string serverUsername,
string serverPassword)
{
EndpointAddress serviceAddress = new EndpointAddress(serviceAddressText);
ChannelFactory<TChannel> channelFactory =
new ChannelFactory<TChannel>(binding, serviceAddress);
// configure the username credentials on the channel factory
UsernameClientCredentials credentials =
new UsernameClientCredentials(new UsernameInfo(serverUsername, serverPassword));
// replace ClientCredentials with UsernameClientCredentials
channelFactory.Endpoint.Behaviors.Remove(typeof(ClientCredentials));
channelFactory.Endpoint.Behaviors.Add(credentials);
return channelFactory.CreateChannel();
}
private void button2_Click(object sender, EventArgs e)
{
//getting the device information
listBox.Items.Clear();
serverUsername = OnvifUserTextBox.Text;
serverPassword = OnvifPwdTextBox.Text;
serverNetworkAddress = serverAddrTextBox.Text;
serviceAddress = string.Format("http://{0}/onvif/device_service", serverNetworkAddress);
// string model, firmwareVersion, serialNumber, hardwareId;
try
{
// Create a client with given client endpoint configuration
deviceChannel =
GetChannel<Device>(binding, serviceAddress, serverUsername, serverPassword);
// deviceChannel.GetDeviceInformation= ( out model, out FirmwareVersion, out SerialNumber, out HardwareId);
//get date and time
var timemamo = deviceChannel.GetSystemDateAndTime();
listBox.Items.Add(timemamo);
var info = deviceChannel.GetDeviceInformation(new GetDeviceInformationRequest());
//MessageBox.Show(string.Format("Model: {0}", info.Model));
string strManuf = string.Format("Manufacturer: {0}", info.Manufacturer);
listBox.Items.Add(strManuf);
string strModel = string.Format("Model: {0}", info.Model);
listBox.Items.Add(strModel);
string strFw = string.Format("Firmware Version: {0}", info.FirmwareVersion);
listBox.Items.Add(strFw);
string strSerialNo = string.Format("Serial Number: {0}", info.SerialNumber);
listBox.Items.Add(strSerialNo);
string strHwId = string.Format("Hardware Id: {0}", info.HardwareId);
listBox.Items.Add(strHwId);
}
catch (Exception exception)
{
string str = string.Format("GetDeviceInformation():mamo " + exception.Message);
listBox.Items.Add(str);
}
}

Your Onvif device might not listening on the default Port(s). Try to add the correct Port number (the Onvif Port, not the HTTP or RTSP) to the URL, for example:
http://192.168.1.89:8182/onvif/device_service

Use 554 port which is a default port for live streaming in onvif

Try to scan all open ports on your IP camera.
For example, in UNIX systems you may use command nmap -p- 192.168.1.89.
Then, try to open the same path for all found ports. In my camera port was far from standard: 8999, which did not appear in the fast scan mode without -p- flag.

Related

Xamarin.Forms Consume Rest Service

I'm new to Xamarin and developing native apps in general (I have made html5 apps in the past).
I have started on a Xamarin.Forms project and I'm trying to contact a REST like API (need to GET an URL which will return a json array).
Normally from C# I would use RestSharp and perform this call using the RestClient.
I'm not having any luck installing that package from Xamarin Studio though, but I have got the Microsoft HTTP Libraries installed.
I'm pretty sure this is a very trivial task to perform, I just haven't been able to adapt the samples I have found online to work for me.
Anyone who could post how this is done please (remember I'm new to this so don't expect me to understand everything that is different from say a normal console app)?
It is easy with HTTP Client and JSON.NET here is a example of a GET:
public async Task<List<Appointment>> GetDayAppointments(DateTime day)
{
HttpClient client = new HttpClient();
client.DefaultRequestHeaders.Add("Authorization", "Bearer " + App.apiToken);
//Your url.
string resourceUri = ApiBaseAddress;
HttpResponseMessage result = await client.GetAsync (resourceUri, CancellationToken.None);
if (result.IsSuccessStatusCode) {
try {
return GetDayAppointmentsList(result);
} catch (Exception ex) {
Console.WriteLine (ex.Message);
}
} else {
if(TokenExpired(result)){
App.SessionExpired = true;
App.ShowLogin();
}
return null;
}
return null;
}
private List<Appointment> GetDayAppointmentsList(HttpResponseMessage result){
string content = result.Content.ReadAsStringAsync ().Result;
JObject jresponse = JObject.Parse (content);
var jarray = jresponse ["citas"];
List<Appointment> AppoinmentsList = new List<Appointment> ();
foreach (var jObj in jarray) {
Appointment newApt = new Appointment ();
newApt.Guid = (int)jObj ["id"];
newApt.PatientId = (string)jObj ["paciente"];
newApt.Name = (string)jObj ["nombre"];
newApt.FatherLstName = (string)jObj ["paterno"];
newApt.MotherLstName = (string)jObj ["materno"];
string strStart = (string)jObj ["horaIni"];
TimeSpan start;
TimeSpan.TryParse (strStart, out start);
newApt.StartDate = start;
string strEnd = (string)jObj ["horaFin"];
TimeSpan end;
TimeSpan.TryParse (strEnd, out end);
newApt.EndDate = end;
AppoinmentsList.Add (newApt);
}
return AppoinmentsList;
}
I use System.Net.WebClient and our asp.net WebAPI interface:
public string GetData(Uri uri)
{//uri like "https://webapi.main.cz/api/root"
string ret = "ERROR";
try
{
using (WebClient webClient = new WebClient())
{
//You can set webClient.Headers there
webClient.Encoding = System.Text.Encoding.UTF8;
ret = webClient.DownloadString(uri));//Test some data received
//In ret you can have JSON string
}
}
catch (Exception ex) { ret = ex.Message; }
return ret;
}
4
public string SendData(Uri uri, byte[] data)
{//uri like https://webapi.main.cz/api/PostCheckLicence/
string ret = "ERROR";
try
{
using (WebClient webClient = new WebClient())
{
webClient.Headers[HttpRequestHeader.Accept] = "application/octet-stream";
webClient.Headers[HttpRequestHeader.ContentType] = "text/bytes";
webClient.Encoding = System.Text.Encoding.ASCII;
byte[] result = webClient.UploadData(uri, data);
ret = Encoding.ASCII.GetString(result);
if (ret.Contains("\"ResultWebApi\":\"OK"))
{//In ret you can have JSON string
}
else
{
}
}
}
catch (Exception ex) { ret = ex.Message; }
return ret;
}
x
I've some examples in my Github repo. Just grab the classes there and give them a try. The API is really easy to use:
await new Request<T>()
.SetHttpMethod(HttpMethod.[Post|Put|Get|Delete].Method) //Obligatory
.SetEndpoint("http://www.yourserver.com/profilepic/") //Obligatory
.SetJsonPayload(someJsonObject) //Optional if you're using Get or Delete, Obligatory if you're using Put or Post
.OnSuccess((serverResponse) => {
//Optional action triggered when you have a succesful 200 response from the server
//serverResponse is of type T
})
.OnNoInternetConnection(() =>
{
// Optional action triggered when you try to make a request without internet connetion
})
.OnRequestStarted(() =>
{
// Optional action triggered always as soon as we start making the request i.e. very useful when
// We want to start an UI related action such as showing a ProgressBar or a Spinner.
})
.OnRequestCompleted(() =>
{
// Optional action triggered always when a request finishes, no matter if it finished successufully or
// It failed. It's useful for when you need to finish some UI related action such as hiding a ProgressBar or
// a Spinner.
})
.OnError((exception) =>
{
// Optional action triggered always when something went wrong it can be caused by a server-side error, for
// example a internal server error or for something in the callbacks, for example a NullPointerException.
})
.OnHttpError((httpErrorStatus) =>
{
// Optional action triggered when something when sending a request, for example, the server returned a internal
// server error, a bad request error, an unauthorize error, etc. The httpErrorStatus variable is the error code.
})
.OnBadRequest(() =>
{
// Optional action triggered when the server returned a bad request error.
})
.OnUnauthorize(() =>
{
// Optional action triggered when the server returned an unauthorize error.
})
.OnInternalServerError(() =>
{
// Optional action triggered when the server returned an internal server error.
})
//AND THERE'S A LOT MORE OF CALLBACKS THAT YOU CAN HOOK OF, CHECK THE REQUEST CLASS TO MORE INFO.
.Start();
And there's a couple of examples.
For all my Xamarin Forms app I use Tiny.RestClient.
It's easy to get it and easy to use it.
You have to download this nuget.
And after it just very easy to use it :
var client = new TinyRestClient(new HttpClient(), "http://MyAPI.com/api");
var cities = client.
GetRequest("City").
AddQueryParameter("id", 2).
AddQueryParameter("country", "France").
ExecuteAsync<City>> ();
Hopes that helps.

Implement Custom Authentication In Windows Azure Mobile Services

Windows Azure Mobile Services currently doesn't have an option for custom authentication and looking at the feature request
http://feedback.azure.com/forums/216254-mobile-services/suggestions/3313778-custom-user-auth
It isn't coming anytime soon.
With a .NET backend and a .NET application how do you implement custom authentication, so that you don't have to use Facebook, Google or any of their other current providers?
There are plenty of partially completed tutorials on how this this is done with a JS backend and iOS and Android but where are the .NET examples?
I finally worked through the solution, with some help of the articles listed below, some intellisense and some trial and error.
How WAMS Works
First I wanted to describe what WAMS is in a very simple form as this part confused me for a while until it finally clicked. WAMS is just a collection of pre-existing technologies packaged up for rapid deployment. What you need to know for this scenario is:
As you can see WAMS is really just a container for a WebAPI and other things, which I won't go into detail here. When you create a new Mobile Service in Azure you get to download a project that contains the WebAPI. The example they use is the TodoItem, so you will see code for this scenario through the project.
Below is where you download this example from (I was just doing a Windows Phone 8 app)
I could go on further about this but this tutorial will get you started:
http://azure.microsoft.com/en-us/documentation/articles/mobile-services-dotnet-backend-windows-store-dotnet-get-started/
Setup WAMS Project
You will need your MasterKey and ApplicationKey. You can get them from the Azure Portal, clicking on your Mobile Services App and pressing Manage Keys at the bottom
The project you just downloaded, in the Controllers folder I just created a new controller called AccountController.cs and inside I put
public HttpResponseMessage GetLogin(String username, String password)
{
String masterKey = "[enter your master key here]";
bool isValidated = true;
if (isValidated)
return new HttpResponseMessage() { StatusCode = HttpStatusCode.OK, Content = new StringContent("{ 'UserId' : 'F907F58C-09FE-4F25-A26B-3248CD30F835', 'token' : '" + GetSecurityToken(new TimeSpan(1,0, 0), String.Empty, "F907F58C-09FE-4F25-A26B-3248CD30F835", masterKey) + "' }") };
else
return Request.CreateErrorResponse(HttpStatusCode.Unauthorized, "Username and password are incorrect");
}
private static string GetSecurityToken(TimeSpan periodBeforeExpires, string aud, string userId, string masterKey)
{
var now = DateTime.UtcNow;
var utc0 = new DateTime(1970, 1, 1, 0, 0, 0, 0, DateTimeKind.Utc);
var payload = new
{
exp = (int)now.Add(periodBeforeExpires).Subtract(utc0).TotalSeconds,
iss = "urn:microsoft:windows-azure:zumo",
ver = 2,
aud = "urn:microsoft:windows-azure:zumo",
uid = userId
};
var keyBytes = Encoding.UTF8.GetBytes(masterKey + "JWTSig");
var segments = new List<string>();
//kid changed to a string
var header = new { alg = "HS256", typ = "JWT", kid = "0" };
byte[] headerBytes = Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(header, Formatting.None));
byte[] payloadBytes = Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(payload, Formatting.None));
segments.Add(Base64UrlEncode(headerBytes));
segments.Add(Base64UrlEncode(payloadBytes));
var stringToSign = string.Join(".", segments.ToArray());
var bytesToSign = Encoding.UTF8.GetBytes(stringToSign);
SHA256Managed hash = new SHA256Managed();
byte[] signingBytes = hash.ComputeHash(keyBytes);
var sha = new HMACSHA256(signingBytes);
byte[] signature = sha.ComputeHash(bytesToSign);
segments.Add(Base64UrlEncode(signature));
return string.Join(".", segments.ToArray());
}
// from JWT spec
private static string Base64UrlEncode(byte[] input)
{
var output = Convert.ToBase64String(input);
output = output.Split('=')[0]; // Remove any trailing '='s
output = output.Replace('+', '-'); // 62nd char of encoding
output = output.Replace('/', '_'); // 63rd char of encoding
return output;
}
You can replace what is in GetLogin, with your own validation code. Once validated, it will return a security token (JWT) that is needed.
If you are testing on you localhost, remember to go into your web.config file and fill in the following keys
<add key="MS_MasterKey" value="Overridden by portal settings" />
<add key="MS_ApplicationKey" value="Overridden by portal settings" />
You need to enter in your Master and Application Keys here. They will be overridden when you upload them but they need to be entered if you are running everything locally.
At the top of the TodoItemController add the AuthorizeLevel attribute as shown below
[AuthorizeLevel(AuthorizationLevel.User)]
public class TodoItemController : TableController<TodoItem>
You will need to modify most of the functions in your TodoItemController but here is an example of the Get All function.
public IQueryable<TodoItem> GetAllTodoItems()
{
var currentUser = User as ServiceUser;
Guid id = new Guid(currentUser.Id);
return Query().Where(todo => todo.UserId == id);
}
Just a side note I am using UserId as Guid (uniqueidentifier) and you need to add this to the todo model definition. You can make the UserId as any type you want, e.g. Int32
Windows Phone/Store App
Please note that this is just an example and you should clean the code up in your main application once you have it working.
On your Client App
Install NuGet Package: Windows Azure Mobile Services
Go into App.xaml.cs and add this to the top
public static MobileServiceClient MobileService = new MobileServiceClient(
"http://localhost:50527/",
"[enter application key here]"
);
In the MainPage.xaml.cs I created
public class Token
{
public Guid UserId { get; set; }
public String token { get; set; }
}
In the main class add an Authenticate function
private bool Authenticate(String username, String password)
{
HttpClient client = new HttpClient();
// Enter your own localhost settings here
client.BaseAddress = new Uri("http://localhost:50527/");
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
HttpResponseMessage response = client.GetAsync(String.Format("api/Account/Login?username={0}&password={1}", username, password)).Result;
if (response.StatusCode == System.Net.HttpStatusCode.OK)
{
var token = Newtonsoft.Json.JsonConvert.DeserializeObject<Token>(response.Content.ReadAsStringAsync().Result);
App.MobileService.CurrentUser = new MobileServiceUser(token.UserId.ToString());
App.MobileService.CurrentUser.MobileServiceAuthenticationToken = token.token;
return true;
}
else
{
//Something has gone wrong, handle it here
return false;
}
}
Then in the Main_Loaded function
private void MainPage_Loaded(object sender, RoutedEventArgs e)
{
Authenticate("test", "test");
RefreshTodoItems();
}
If you have break points in the WebAPI, you will see it come in, get the token, then come back to the ToDoItemController and the currentUser will be filled with the UserId and token.
You will need to create your own login page as with this method you can't use the automatically created one with the other identity providers. However I much prefer creating my own login screen anyway.
Any other questions let me know in the comments and I will help if I can.
Security Note
Remember to use SSL.
References
[] http://www.thejoyofcode.com/Exploring_custom_identity_in_Mobile_Services_Day_12_.aspx
[] http://www.contentmaster.com/azure/creating-a-jwt-token-to-access-windows-azure-mobile-services/
[] http://chrisrisner.com/Custom-Authentication-with-Azure-Mobile-Services-and-LensRocket
This is exactly how you do it. This man needs 10 stars and a 5 crates of beer!
One thing, I used the mobile Service LoginResult for login like:
var token = Newtonsoft.Json.JsonConvert.DeserializeObject(response.Content.ReadAsStringAsync().Result);
Hope to get this into Android now!

GCM Cloud Connection Server doesn't respond to SASL on XMPP

Using agsXMPP to connect to Google Cloud Messaging XMPP API for the purpose of sending notification to Android devices.
The connection is established OK, but on SASL start, after sending the PLAIN auth element, the server stops responding, and closes the connection after a further 20 seconds.
Base64 decoding the auth example from the documentation page (http://developer.android.com/google/gcm/ccs.html) shows login values of:
126200347933#projects.gcm.android.com12620034793#projects-ga-.android.comAIzaSyB3rcZNkfnqKdFb9mhzCBiYpORDA2JWWtw
Where as agsXMPP is (correctly I think) encoding the string, to give something like:
[ProjectID]\40gcm.googleapis.com[**API*KEY*PASSWORD**]
Note the \40 in my version instead of the # in the Google example - could this make a difference?
I'm expecting either a success or failure message, no response at all is difficult to debug. Could this at character be responsible for some failure, or does Google's implementation of XMPP just not provide the correct responses.
UPDATED:
I answered below, essentially, yes, Google can't handled the encoded # character because it doesn't support that XMPP extension.
After some more testing, I added a new SaslFactory mechanism in agsXMPP and bound it to use the username without encoding (part of extension http://xmpp.org/extensions/xep-0106.html, which Google doesn't support), and then on SaslStartEvent - specify that I want to use that mechanism instead of the inbuilt plain one. - and now the connection will continue normally.
xmpp = new XmppClientConnection();
xmpp.UseSSL = true;
xmpp.UseStartTLS = false;
xmpp.Server = "gcm.googleapis.com";
xmpp.ConnectServer = "gcm.googleapis.com";
xmpp.Port = 5235;
/* Other connection settings /*
SaslFactory.AddMechanism("MyPLAINMechanism", typeof(MyPlainMechanismClass));
xmpp.OnSaslStart += (sender, args) =>
{
args.Auto = false;
args.Mechanism = "MyPLAINMechanism";
args.ExtentedData = new GcmPlainSaslExtendedData
{
Username = "MY UNENCODED USERNAME"
};
};
Then we define the MyPlainMechanismClass which inherits from the Mechanism in agsXMPP, the source code is the same as the original PlainSaslMechanism except the line where the username is input - you can pass in an unencoded username using the ExtendedData property on args.
public class MyPlainMechanismClass: Mechanism
{
private XmppClientConnection m_XmppClient = null;
public GcmPlainSaslMechanism()
{
}
public override void Init(XmppClientConnection con)
{
m_XmppClient = con;
// <auth mechanism="PLAIN" xmlns="urn:ietf:params:xml:ns:xmpp-sasl">$Message</auth>
m_XmppClient.Send(new agsXMPP.protocol.sasl.Auth(agsXMPP.protocol.sasl.MechanismType.PLAIN, Message()));
}
public override void Parse(Node e)
{
// not needed here in PLAIN mechanism
}
private string Message()
{
// NULL Username NULL Password
StringBuilder sb = new StringBuilder();
//sb.Append( (char) 0 );
//sb.Append(this.m_XmppClient.MyJID.Bare);
sb.Append((char)0);
//sb.Append(this.Username);
sb.Append(((GcmPlainSaslExtendedData) this.ExtentedData).Username);
sb.Append((char)0);
sb.Append(this.Password);
byte[] msg = Encoding.UTF8.GetBytes(sb.ToString());
return Convert.ToBase64String(msg, 0, msg.Length);
}
}
Our custom ExtendedData object which we use to pass in custom arguments, such as an unencoded username in this case.
public class GcmPlainSaslExtendedData : agsXMPP.Sasl.ExtendedData
{
public string Username { get; set; }
}

Working with Azure in Winrt with Rest API, trouble with signature

I'm trying to work with azure storage in winrt. Since the azure storage client is not compatible with winrt I am trying to use azure's rest API. I am having a heck of a time getting the signature right and I could use another set of eyes to help me see where I'm going wrong.
Azure Account provides a name and key property, this method builds up the request right now simply listing all blobs.
'private async void BuildHTTPRequest(AzureAccount account)
{
System.Net.Http.HttpClient request = new HttpClient();
request.BaseAddress = new Uri(string.Format("http://{0}.blob.core.windows.net/", account.Name));
// Always have to use UTC date/time
request.DefaultRequestHeaders.Add("x-ms-date", DateTime.UtcNow.ToString("R", CultureInfo.InvariantCulture));
string fmtStringToSign = "{0}\n{1}\n{2}\n{3:R}\n{4}{5}";
request.DefaultRequestHeaders.Add("x-ms-version", "2011-08-18");
string hdr = CanonicalizeHeaders(request.DefaultRequestHeaders);
string authValue = string.Format(fmtStringToSign, "GET", "", "", "", hdr, "");
byte[] signatureByteForm = System.Text.Encoding.UTF8.GetBytes(authValue);
string hashKey = account.Key;
MacAlgorithmProvider macAlgorithmProvider = MacAlgorithmProvider.OpenAlgorithm("HMAC_SHA256");
BinaryStringEncoding encoding = BinaryStringEncoding.Utf8;
var messageBuffer = CryptographicBuffer.ConvertStringToBinary(authValue, encoding);
IBuffer keyBuffer = CryptographicBuffer.ConvertStringToBinary(hashKey, encoding);
CryptographicKey hmacKey = macAlgorithmProvider.CreateKey(keyBuffer);
IBuffer signedMessage = CryptographicEngine.Sign(hmacKey, messageBuffer);
string hashedString = CryptographicBuffer.EncodeToBase64String(signedMessage);
String authHeader = String.Format(CultureInfo.InvariantCulture, "{0} {1}:{2}", "SharedKey",
account.Name, hashedString);
request.DefaultRequestHeaders.Add("Authorization", authHeader);
// Send the request to the queue
try
{
var test1 = request.GetAsync("?comp=list").Result;
if (test1.IsSuccessStatusCode)
{
}
}
catch (WebException ex) { }
}
This should set the headers up for signing...
public string CanonicalizeHeaders(System.Net.Http.Headers.HttpRequestHeaders hdrCollection)
{
StringBuilder retVal = new StringBuilder();// Look for header names that start with "x-ms-" // Then sort them in case-insensitive manner.
List<string> httpStorageHeaderNameArray = new List<string>();
Dictionary<string, string> ht = new Dictionary<string, string>();
foreach (var key in hdrCollection)
{
if (key.Key.ToLowerInvariant().StartsWith("x-ms-", StringComparison.Ordinal))
{
if (ht.ContainsKey(key.Key.ToLowerInvariant()))
{
ht[key.Key.ToLowerInvariant()] = string.Format("{0},{1}", ht[key.Key.ToLowerInvariant()],
hdrCollection.FirstOrDefault(m => m.Key == key.Key).ToString().Replace("\n", string.Empty).Replace("\r", string.Empty).Trim());
}
else
{
httpStorageHeaderNameArray.Add(key.Key.ToLowerInvariant());
ht.Add(key.Key.ToLowerInvariant(),
hdrCollection.FirstOrDefault(m => m.Key == key.Key).Value.FirstOrDefault().ToString().Replace("\n", string.Empty).Replace("\r", string.Empty).Trim());
}
}
}
httpStorageHeaderNameArray.Sort();// Now go through each header's values in the sorted order and append them to the canonicalized string.
foreach (string key in httpStorageHeaderNameArray)
{
retVal.AppendFormat("{0}:{1}\n", key.Trim(), ht[key]);
}
return retVal.ToString();
}
'
Latest version of storage client library supports WinRT. You can read more about it here: http://blogs.msdn.com/b/windowsazurestorage/archive/2012/10/29/introducing-windows-azure-storage-client-library-2-0-for-net-and-windows-runtime.aspx. What I did was download the source code from Github: https://github.com/WindowsAzure/azure-sdk-for-net, opened the solution in VS 2012 and built RT project to get the necessary winmd files.
Coming to your problem, I believe you're running into this issue because you're passing an empty string for canonicalized resource string:
string authValue = string.Format(fmtStringToSign, "GET", "", "", "", hdr, "")
Please see this link for more details on creating canonicalized resource string: http://msdn.microsoft.com/en-us/library/windowsazure/dd179428.aspx.

How to get alerts from action in asp.net mvc

as far as I know we can not call the javascript method in controller's action method. but how to consider that a particular code line get executed ? As i asked earlier here
we must have to get acknowledgment that line number so and so get executed. see this action in my controller
[AcceptVerbs(HttpVerbs.Post)]
public ActionResult uploadfile(FormCollection fc)
{
UserMaster objUMaster = objAM.GetUser(new Guid(fc["userIdForFile"].ToString()));
try
{
string imagename = "";
//Check for files uploaded here.
foreach (string inputTagName in Request.Files)
{
HttpPostedFileBase file = Request.Files[inputTagName];
imagename = objUMaster.UserId.ToString() + file.FileName;
if (file.ContentLength > 0)
{
string filePath = Path.Combine(HttpContext.Server.MapPath("../Content/UserUploads"), objUMaster.UserId.ToString() + Path.GetFileName(file.FileName));
file.SaveAs(filePath);
string filePathThumb = Path.Combine(HttpContext.Server.MapPath("../Content/UserUploads/Thumbnails"), objUMaster.UserId.ToString() + Path.GetFileName(file.FileName));
var fl = Request.Files.Get(inputTagName);
Stream strm = fl.InputStream;
Image img = Image.FromStream(strm);
ResizeAndSaveHighQualityImage(img, 120, 120, filePathThumb, 100);
}
}
objUMaster.ProfilePhoto = imagename;
objAM.Save();
return RedirectToAction("EditProfile", new { id = objUMaster.UserId });
}
catch (Exception ex)
{
//SendEmail(ex.Message);
string strPath = HttpContext.Server.MapPath("../Content/UserUploads");
StreamWriter SW;
SW = System.IO.File.CreateText(strPath+"/log.txt");
SW.WriteLine(ex.Message.ToString());
SW.Close();
return RedirectToAction("EditProfile", new { id = objUMaster.UserId });
}
}
Here I am trying to upload the image in my domains file system (dir). but I want get alert so that I can confirm , this lie get executed successfully. because nothing happening as expected from this action. so can we call Javascript's "alert", or something else remedy?
Some pointers to help you:
See if Network service/account under which your application is running has permission on the location where you are saving your file.
Besides this to make sure that your file is saved, after save call you can make another call File.IsExist. If it exists then you can log the success/failure in some log file. Wouldn't that work for you?