I want remove first and Last place og double Quote in JSON,
public interface ITFSService
{
[OperationContract]
[WebInvoke(Method = "GET", UriTemplate = "TFS_GetProject", ResponseFormat = WebMessageFormat.Json)]
string TFS_GetProject();
}
and my return methods is
public string TFS_GetProject()
{
String json = String.Empty;
try
{
DataTable dtbl = new DataTable();
SqlDataAdapter da = new SqlDataAdapter("SELECT ProjectId, ProjectName, ProjectDescription ,ClientName ,Duration, "
+ " Manpower, ProjectStatus FROM TFS_mstrProject WHERE pStatus = 'Y'", con);
con.Open();
da.Fill(dtbl);
con.Close();
json = JsonConvert.SerializeObject(dtbl);
}
catch (Exception ex)
{
json = ex.Message.ToString();
}
return json;
}
and my Response is like
"[
{
\"ProjectId\":1.0,
\"ProjectName\":\"Prematix Messanger - Android\",
\"ProjectDescription\":\"Basically it will be using for the internal communication of the office. this application mainly involves message conversation and attaching doc for both sender and receiver.\",
\"ClientName\":\"Prematix\",
\"Duration\":15.0,
\"Manpower\":4.0,
\"ProjectStatus\":\"Locked\"
}
]"
I think this is not JSON format. How can I convert this into JSON?
Related
I have to generate a Client assertion string signing with the json private key.
I have the private key in the private.json file. How do I use the private key in the file to sign the Header and payload?
Except the signing part, I have managed to get the other things to work. Following is the code I use for getting the Signed Client assertion string
public string GetSignedClientAssertion()
{
var header = new Dictionary<string, string>()
{
{ "typ" , "JWT"},
{ "alg", "ES512"},
{ "kid", "TST_Staging" }
};
string token = Encode(Encoding.UTF8.GetBytes(JObject.FromObject(header).ToString())) + "." + Encode(Encoding.UTF8.GetBytes(JObject.FromObject(GetClaims()).ToString()));
var rsa = new RSACryptoServiceProvider();
var filename = System.Web.HttpContext.Current.Server.MapPath("Private.json");
string data = File.ReadAllText(filename);
string key = Encode(Encoding.UTF8.GetBytes(data));
byte[] databyte = File.ReadAllBytes(filename);
//-----I am stuck here on how to sign the token with the Private key from the private.key file
//---the method used for SignData does not work
string signature = SignData(token, data);
signature = Encode(Encoding.UTF8.GetBytes(signature));
return signedClientAssertion = string.Concat(token, ".", signature);
}
Private.json has something like the following
{
"kty": "EC",
"d": "AfJ_hlRFCP0g2PghjghjghjtryrtytyFpbALpoG0gqh9tyaSv8JIZuhKYOgvbAzkI6pi2gdCce3fvWb5csiL24PiS9Ke5CKlh3QyW-YOO",
"use": "sig",
"crv": "P-521",
"kid": "TST_Staging",
"x": "ADRSCG8Acsqj6SlShpEJYa9UhA7ojghjgjK4eUVHj9CDqbH4j2_F84j7qtK4fdH94xGzYqQwV0rLfJrAISknoudPQm743H",
"y": "AYnLkWp3Up69WQoc-kZ8ugvSiCNChMiBra3jLHmSotDdzSJ6MgMCokfRdHsfsF-z4VAGq3zam1Z604_rC5N9xrtyrtyufV",
"alg": "ES512"
}
Can someone point out how to sign the token with the Private key will be much helpful. Thanks.
I have managed to find the solution myself. I am using EC Json public and private keys. Previously I was using the Algorithm ES512 which had some issues while decrypting the JWE response from the server, so I had changed my JWT key algorithm to ES256 and with this encryption and decryption works perfectly with Jose.JWT.
I have been struggling for more than a month to find a solution for the EC Json Public and private key Encryption and Decryption. All the solution available out there was for PEM key method only and nothing much for the Json EC keys. It took me a lot of time find the necessary pieces and put them together and make it work. I am providing the entire code for the page where the encryption and decryption happens, so that someone might find it useful.
using System.Net;
using System.Text; // For class Encoding
using System.IO; // For StreamReader
using System;
using System.Collections.Generic;
using System.Configuration;
using Jose;
using System.Security.Cryptography;
using System.Web;
using Jose.keys;
using Stream = System.IO.Stream;
using System.Web.Script.Serialization;
using Newtonsoft.Json;
public partial class holding : System.Web.UI.Page
{
string ClientID = "mlDBKnXXXXXTYRTYRTYyYdmzFGD6HcBPsHZ2W";
string RemoteURL = "https://www.example.org";
string RemoteTokenAppend = "/token";
string RedirectURL = "https://www.exampleabc.com/holding.aspx";
//-----private key for Encrypting the token
string PrivateKey = #"
{
""x"": ""4kELRTR545GDGDGtvilOLrtr5luaQaWgaTlpqUf7o"",
""y"": ""iCyNdwX73FWKJTjn1Q19gdjEILKjEILK3Y_XwgY3Y_XwgY"",
""d"": ""wiYrwNa5SgBNgdqRtSMpaUvRmipaBJ6hfmL1CUMpwlQ"",
""kty"": ""EC"",
""crv"": ""P-256""
}";
Dictionary<string, object> PrivateKeyHeader = new Dictionary<string, object>
{
{ "typ", "JWT" },
{ "kid", "TST_SERVER" },
{ "alg", "ES256" }
};
//----Public Enc key for Decrypting the JWE token from the remote host
string PublicKey_Enc = #"
{
""x"": ""_ylhMfdVwaRrLx8HL8z7X1ixVkk2rbpwD9oU-uAqyhE"",
""y"": ""aCRo4kY2dTl7wZXjsp2NJyF9Tcmzk1XZN5ueJWNq7Lk"",
""d"": ""Jz9aEpbt_4aKL5FVdCLlux7U-Ubt_4aKL5VdCLLTR2Y"",
""kty"": ""EC"",
""crv"": ""P-256""
}";
public void Page_Load(object sender, EventArgs e)
{
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(RemoteURL + RemoteTokenAppend);
ServicePointManager.SecurityProtocol = (SecurityProtocolType)3072;
request.ProtocolVersion = HttpVersion.Version10;
var postData = "client_assertion_type=" + HttpUtility.UrlEncode("urn:ietf:params:oauth:client-assertion-type:jwt-bearer");
postData += "&client_id=" + HttpUtility.UrlEncode(ClientID);
postData += "&grant_type=" + HttpUtility.UrlEncode("authorization_code");
postData += "&redirect_uri=" + HttpUtility.UrlEncode(RedirectURL);
postData += "&code=" + HttpUtility.UrlEncode(Request.QueryString["code"]);
postData += "&client_assertion=" + EncryptTokenJose();
var data = Encoding.ASCII.GetBytes(postData);
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
request.Headers.Add("Content-Encoding", "ISO-8859-1");
request.ContentLength = data.Length;
try
{
using (var stream = request.GetRequestStream())
{
stream.Write(data, 0, data.Length);
}
var webResponse = (HttpWebResponse)request.GetResponse();
var webStream = webResponse.GetResponseStream();
var responseReader = new StreamReader(webStream);
var response = responseReader.ReadToEnd();
//---Decrypt the Response from Remote
string JoseRes = DecryptTokenJose(response.ToString());
//---close the response reader
responseReader.Close();
Response.Write("<br><br>Payload = " + JoseRes + "<br><br>");
//---Get the json string and values from the decrypted Token
JsonTextReader reader = new JsonTextReader(new StringReader(JoseRes));
var sData = JsonSerializer.CreateDefault().Deserialize<payload>(reader);
//----Sample Payload
//---- Payload = { "sub":"s=S775566X,u=c57acrtereb8-d102-455a-860a-ae7dretef4b8d","aud":"mlDBKnGyYfgdgdmzwx770mqXKb6HcBPsHZ2W","amr":["pwd","swk"],"iss":"https:\/\/www.exampleabc.com","exp":1637810980,"iat":1637810380,"nonce":"TJtv85f586sTgxjUlFm5"}
//----get the sub from Payload
string sub = sData.sub;
Response.Write("<br><br>Sub = " + sub + "<br><br>");
//---Get the list array of sub to extract the IC
string[] subList = sub.Split(',');
//---Get the first item of the array to get the IC
Response.Write("<br><br>NRIC = " + subList[0] + "<br><br>");
//---Retrieved IC value will be s=S775566X, so replace s= to "" to get the exact NRIC value and set the Session value
Session["NRIC"] = subList[0].Replace("s=", "");
//---if Session["RedirctPage"] is set then go to that page
if (Session["RedirctPage"] != null)
Response.Redirect(Session["RedirctPage"].ToString());
else
Response.Redirect("Register_uat.aspx");
}
catch (WebException ex)
{
using (WebResponse response = ex.Response)
{
string ErrorString = "Error from the Server:-----<br><br>";
HttpWebResponse httpResponse = (HttpWebResponse)response;
using (Stream data1 = response.GetResponseStream())
using (var reader = new StreamReader(data1))
{
ErrorString += reader.ReadToEnd();
Response.Write(ErrorString);
}
}
}
}
public string EncryptTokenJose()
{
const uint JwtToAadLifetimeInSeconds = 60 * 2;
DateTime validFrom = DateTime.UtcNow;
long exp = ConvertToTimeT(validFrom + TimeSpan.FromSeconds(JwtToAadLifetimeInSeconds));
long iat = ConvertToTimeT(validFrom);
//---Payload string
string payloadStr = "{\"aud\":\"" + RemoteURL + "\",\"exp\":" + exp.ToString() + ",\"iss\":\"" + ClientID + "\",\"iat\": " + iat.ToString() + ",\"sub\":\"" + ClientID + "\"}";
//---get the Private key to form the public key
JsonTextReader reader = new JsonTextReader(new StringReader(PrivateKey));
var jwk = JsonSerializer.CreateDefault().Deserialize<JWK>(reader);
var publicECCKey = EccKey.New(Base64Url.Decode(jwk.x), Base64Url.Decode(jwk.y), Base64Url.Decode(jwk.d), usage: CngKeyUsages.KeyAgreement);
string token = Jose.JWT.Encode(payloadStr, publicECCKey, JwsAlgorithm.ES256, extraHeaders: PrivateKeyHeader);
return token;
}
public string DecryptTokenJose(string Res)
{
var jss = new JavaScriptSerializer();
string json = Res;
Dictionary<string, string> sData = jss.Deserialize<Dictionary<string, string>>(json);
string AccessToken = sData["access_token"].ToString();
string TokenType = sData["token_type"].ToString();
string IdToken = sData["id_token"].ToString();
Response.Write("<br><br>" + IdToken + "<br><br>");
//---get the Public key Enc to decrypt the JWE token
JsonTextReader reader = new JsonTextReader(new StringReader(PublicKey_Enc));
var jwk = JsonSerializer.CreateDefault().Deserialize<JWK>(reader);
var publicECCKey = EccKey.New(Base64Url.Decode(jwk.x), Base64Url.Decode(jwk.y), Base64Url.Decode(jwk.d), usage: CngKeyUsages.KeyAgreement);
//---get the decrypted token
string token = Jose.JWT.Decode(IdToken, publicECCKey, JweAlgorithm.ECDH_ES_A128KW, JweEncryption.A256CBC_HS512);
//----todo: Verify the signature of the decoded JWS token
//----5 parts token with dot(.) as separator
string[] toklist = token.Split('.');
//----get the 2nd item of the list which will have the Payload with User IC details
string Payload = toklist[1];
//----decode the payload to bytes and from bytes to readable string
var base64EncodedBytes = Base64Url.Decode(Payload);
return System.Text.Encoding.UTF8.GetString(base64EncodedBytes);
}
public static long ConvertToTimeT(DateTime dt)
{
return (long)(dt - new DateTime(1970, 1, 1, 0, 0, 0, 0)).TotalSeconds;
}
public class payload
{
public string sub { get; set; }
public string aud { get; set; }
public string iss { get; set; }
public string exp { get; set; }
public string iat { get; set; }
}
public class JWK
{
public string x { get; set; }
public string y { get; set; }
public string d { get; set; }
}
}
I have a application that need to communicate with another application.
In the first application I mentioned it as:
public List<ContactsBO> getZingyContactsByCompanyId(int companyId) throws Exception {
String url="http://localhost:8080/ZingyApp/getContactsToBSAByAccountId";
URL object=new URL(url);
JSONObject account = new JSONObject();
String accountId = "58fd8c58abced355f69bf0bb";
account.put("accountId", accountId);
HttpURLConnection conn = (HttpURLConnection) object.openConnection();
conn.setConnectTimeout(50000);
conn.setRequestProperty("Content-Type", "application/json; charset=UTF-8");
conn.setDoInput(true);
conn.setDoOutput(true);
conn.setRequestMethod("POST");
OutputStream os = conn.getOutputStream();
OutputStreamWriter wr = new OutputStreamWriter(os);
wr.write(account.toString());
wr.flush();
os.close();
String json_response = "";
BufferedReader br = null;
if (conn.getResponseCode() == 200) {
br = new BufferedReader(new
InputStreamReader(conn.getInputStream()));
} else {
br = new BufferedReader(new
InputStreamReader(conn.getErrorStream()));
}
String text = "";
while ((text = br.readLine()) != null) {
json_response += text;
}
String contacts = json_response;
System.out.println("Contacts:"+contacts);
return null;
}
In second application I am trying to get the parameter accountId, which I set to a JSON object.
#RequestMapping(value="/getContactsToBSAByAccountId",method=RequestMethod.POST)
public #ResponseBody List<Contacts> getContactsByAccountId(#ModelAttribute("accountId") String accountId) {
System.out.println("Inside Account Details:"+accountId);
List<Contacts> contacts=salesContactService.getContactsByAccountId("58fd8c58abced355f69bf0bb");
return contacts;
}
Here accountId is null.
When I changed #RequestParams, the method itself is not getting called, and I got 400 error, when I change to #ModelAttribute only it gets called but values are not getting post.
Can someone give a suggestion on this one?
#RequestBody Map objectMap instead of ModelAttribute and get from map like String accountId = (String)objectMap.get("accountId")
This worked for me.
I am getting a JSON object POST request from android volley.I am trying to read the json using the following code.
#POST
#Path("/driver/insertTripLog")
#Consumes(MediaType.APPLICATION_JSON)
#Produces(MediaType.TEXT_PLAIN)
public String insertTripLog(InputStream incomingData) throws Exception
{
StringBuilder sb = new StringBuilder();
try {
BufferedReader in = new BufferedReader(new InputStreamReader(incomingData));
String line = null;
while ((line = in.readLine()) != null) {
sb.append(line);
}
} catch (Exception e) {
System.out.println("Error Parsing: - ");
}
String data=sb.toString();
System.out.println("Data Received: " +data );
return data;
}
The output i am getting json object but the special characters are encoded with %XX format.
Sample Output:
json=%5B%7B%22name%22%3A%22value%22%7D%5D
how to read properly post json data sent from volley.
Use the URLDecoder class to handle the percent encoded content which you are seeing:
String data = sb.toString();
data = java.net.URLDecoder.decode(data, "UTF-8");
Output:
json=[{"name":"value"}]
Can we return JSON object from spring controller and write that JSON object on jsp page.
Below is my jsp page:
<script type="text/javascript">
dojo.require("dojox.grid.EnhancedGrid");
dojo.require("dojox.data.QueryReadStore");
dojo.ready(function(){
mystore=new dojo.data.ItemFileReadStore({url:"<%=request.getContextPath()%>/showData.htm"});
var layout= [
{field: 'ID', name: 'SID',formatter: hrefFormatter,datatype:"number" },
{field: 'SPREAD',name: 'SPREAD',autoComplete: true}
]
var grid = new dojox.grid.EnhancedGrid({
id: 'myGrid',
----
});
</script>
Controller:
#RequestMapping(value = "/showData", method = RequestMethod.GET)
public void getSTIDData(HttpServletRequest request,
HttpServletResponse response, #ModelAttribute VINDTO vinData,
BindingResult beException) throws IOException {
try {
......
......
XStream xstream = new XStream(new JsonHierarchicalStreamDriver() {
public HierarchicalStreamWriter createWriter(Writer writer) {
return new JsonWriter(writer, JsonWriter.DROP_ROOT_MODE);
}
});
xstream.alias("items", com.loans.auto.DTO.VINRequestDTO.class);
String str = xstream.toXML(vinListCopy);
StringBuffer rowData = new StringBuffer();
rowData.append("{'numRows':").append(vinListCopy.size())
.append(",'items':").append(str).append("}");
PrintWriter out = response.getWriter();
out.print(rowData);
}
Instead of getSTIDData(..) returning void , i want this method to return ModelAndView object, but when i return ModelAndView object, in jsp page data is not getting loaded and it says "NO Data Found". Please suggest. Thanks.
Below is the exception generated when i used Gson
SyntaxError {stack: "SyntaxError: Unexpected identifier↵ at Object.d… at signalWaiting (/MYWebProject/dojo/Deferred.js:28:4)", message: "Unexpected identifier"}
message: "Unexpected identifier"
stack: "SyntaxError: Unexpected identifier↵ at Object.dojo.fromJson (/MYWebProject/dojo/_base/json.js:26:23)↵ at Object.dojo._contentHandlers.dojo.contentHandlers.json (/MYWebProject/dojo/_base/xhr.js:78:16)↵ at Object.dojo._contentHandlers.dojo.contentHandlers.json-comment-optional (/MYWebProject/dojo/_base/xhr.js:156:28)↵ at _deferredOk (/MYWebProject/dojo/_base/xhr.js:432:42)↵ at notify (/MYWebProject/dojo/_base/Deferred.js:187:23)↵ at complete (/MYWebProject/dojo/_base/Deferred.js:168:4)↵ at resolve.callback (/MYWebProject/dojo/_base/Deferred.js:248:4)↵ at eval (/MYWebProject/dojo/_base/xhr.js:627:8)↵ at signalListener (/MYWebProject/dojo/Deferred.js:37:21)↵ at signalWaiting (/MYWebProject/dojo/Deferred.js:28:4)"
__proto__: Error
yes you can return as JSON response.showing with the help of Gson API
#RequestMapping(value = "/showData", method = RequestMethod.GET)
public #ResponseBody String getUserHomePage(HttpServletRequest request,HttpServletResponse response, #ModelAttribute VINDTO vinData,BindingResult beException) throws IOException {
//you code stuff to create model object bean
Gson gson = new Gson();
return gson.toJson(objectBean);
}
Keep it clean and simple...
Here is a real life snippet of code ...
#RequestMapping(value = "/actions/getImplGroups", method = RequestMethod.POST)
public ResponseEntity<String> getImplGroups(HttpServletRequest request, HttpServletResponse response) {
List<String> groups = bpmClient.getAllGroups();
ObjectMapper mapper = new ObjectMapper();
String jsonString;
try {
jsonString = mapper.writeValueAsString(groups);
} catch (JsonGenerationException e) {
jsonString = "Error with json generation: " + e.getMessage();
} catch (JsonMappingException e) {
jsonString = "Error with json mapping: " + e.getMessage();
} catch (IOException e) {
jsonString = "Error with json: " + e.getMessage();
}
HttpHeaders responseHeaders = new HttpHeaders();
responseHeaders.setContentType(MediaType.APPLICATION_JSON);
return new ResponseEntity<String>(jsonString, responseHeaders, HttpStatus.CREATED);
}
The important point to consider is sending the correct web header, so that your page expects to see json.
I the case above we used the Jackson library to create the json, but in truth you could format the json any way you like. Here is an example of a simple, manually formatted string...
#RequestMapping(value = "/actions/getTicketsNotUpdatedWithinShift", method = RequestMethod.POST)
public ResponseEntity<String> getTicketsNotUpdatedWithinShift(String center, String sections, String minutesInShift, Model model) {
String[] sectionArray = sections.split(",");
String json = "";
String rowsString = "";
for (String section : sectionArray) {
List<Map<String, String>> rows = service.getMinutesSinceLastTicketUpdate(center, section);
for (Map<String, String> row : rows) {
int minutesSinceUpdate = Integer.parseInt(row.get("minutes"));
if (minutesSinceUpdate > Integer.parseInt(minutesInShift)) {
String description = row.get("description");
rowsString = rowsString + "\"" + description + "\",";
}
}
}
// Build the json structure
if (!rowsString.isEmpty()) {
// Trim the trailing comma.
rowsString = rowsString.replaceAll(",$", "");
json = "[" + rowsString + "]";
} else {
json = "[]";
}
HttpHeaders responseHeaders = new HttpHeaders();
responseHeaders.setContentType(MediaType.APPLICATION_JSON);
return new ResponseEntity<String>(json, responseHeaders, HttpStatus.CREATED);
}
I want to remove backslash from json result
current result like this:
"{\"Info\":[{\"Full_Eng_Nmae\":\"anda norse\",\"email\":\"keer0#gm
my code is like this
public string GetDetails(string OrderID)
{
OrderContract order = new OrderContract();
DataSet dataSet = new DataSet();
try
{
SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["ConnectionString1"].ConnectionString);
con.Close();
con.Open();
SqlDataAdapter da = new SqlDataAdapter("select Full_Eng_Nmae,email,mobile,client_id from Students where Center_id='" + OrderID + "'", con);
da.Fill(dataSet,"Info");
dataSet.AcceptChanges();
string json = JsonConvert.SerializeObject(dataSet);
return json;
}
catch (Exception ex)
{
throw new FaultException<string>
(ex.Message);
}
}
any one can help me plz?
Thanks
also this full of my code
my Interface:
[ServiceContract]
public interface IOrderService
{
[OperationContract]
[WebGet(UriTemplate = "/GetOrderDetails/{OrderID}",
RequestFormat = WebMessageFormat.Json,
ResponseFormat = WebMessageFormat.Json)]
string GetOrderDetails(string OrderID);
}
I bet there is no backslash, but the printing code that you are using is adding them.