I have a problem in a program that implements a simple web server.
When I send HTTP request to the webserver, the webserver sends HTTP code to client, but I want to receive => I have error "Connection is reset!)
clientSocket = new Socket("localhost", 1234);
BufferedWriter out = new BufferedWriter(
new OutputStreamWriter(
new BufferedOutputStream(clientSocket.getOutputStream()), "UTF-8")
);
out.write(OUTPUT_HEADERS+"GET /"+"home.html" + " HTTP/1.1\nHost:"+clientSocket.getLocalAddress() +"\nUser-agent: Mozilla/5.0\nAccept-language: fa");
out.flush();
System.out.println(" waiting...");
InputStreamReader isr=new InputStreamReader(clientSocket.getInputStream());
BufferedReader br=new BufferedReader(isr);
while (br.ready()) {
System.out.println(br.readLine());
}
According to the HTTP 1.1 spec:
http://www.w3.org/Protocols/HTTP/1.1/rfc2616bis/draft-lafon-rfc2616bis-03.html#request
The request and request headers needs to be terminated with CR/LF.
i.e. Change:
out.write(OUTPUT_HEADERS+"GET /"+"home.html" + " HTTP/1.1\nHost:"+clientSocket.getLocalAddress() +"\nUser-agent: Mozilla/5.0\nAccept-language: fa");
out.flush();
to
out.write(OUTPUT_HEADERS+"GET /"+"home.html" + " HTTP/1.1\r\nHost:"+clientSocket.getLocalAddress() +"\r\nUser-agent: Mozilla/5.0\r\nAccept-language: fa\r\n");
out.write("\r\n");
out.flush();
Related
My project is a web api project which is using owin for generating token after authentication. it is built using asp.net framework.
It currently accepts token request in below format -
var client = new RestClient("http://localhost:63202/1.0/token");
client.Timeout = -1;
var request = new RestRequest(Method.POST);
request.AddHeader("Content-Type", "application/x-www-form-urlencoded");
request.AddParameter("grant_type", "client_credentials");
request.AddParameter("client_id", "12345667");
request.AddParameter("client_secret", "secret");
I want my API to support Json raw body instead of URL encoded one with the token request as below -
var client = new RestClient("http://localhost:63202/1.0/token");
client.Timeout = -1;
var request = new RestRequest(Method.POST);
request.AddHeader("Content-Type", "application/json");
var body = #"{" + "\n" +
#" "grant_type": "client_credentials"," + "\n" +#" "client_id": "1234567890""," + "\n" +#"client_secret": "channelsintegration123456789012345" + "\n" +
#"}"
request.AddParameter("application/json", body, ParameterType.RequestBody);
Issue - When the request is made and ValidateClientAuthentication() method is hit, the context doesn't have client id and client secret when I make the above (#2) request.
I perform a POST using Robospice and okHttp :
public String loadDataFromNetwork() throws Exception {
uriBuilder = Uri.parse(url).buildUpon();
uri = new URI(uriBuilder.build().toString());
tmp = "user=" + user + "&password=" + pwd
HttpURLConnection connect = new OkUrlFactory(client).open(uri.toURL());
// Send post request
connect.setDoOutput(true);
DataOutputStream wr = new DataOutputStream(connect.getOutputStream());
wr.writeBytes(tmp);
wr.flush();
wr.close();
// Read the response
in = connect.getInputStream();
}
Is there a better way to send a post (with Robospice/okHttp) ?
NB : my code is working fine, just want to know if it's correct or not...
The problem is that if I want to use the okHttp POST like that :
OkHttpClient client = new OkHttpClient();
Request request = new Request.Builder()
.url("https://api.github.com/markdown/raw")
.post(RequestBody.create(MEDIA_TYPE_MARKDOWN, parameters))
.build();
Response response = client.newCall(request).execute();
if (!response.isSuccessful()) throw new IOException("Unexpected code " + response);
System.out.println(response.body().string());
with Robospice, RequestBody and newCall and isSuccessful cannot be resolved !
Do I have a solution to use okHttp post WITH Robospice ? (I know how to make a GET, but not a POST...)
I am accessing Rackspace Cloud APIs.
I have one api call which authenticates me on the rackspace cloud.
The method works perfectly, however, from time to time, i get this exception, randomly :
The remote name could not be resolved: 'identity.api.rackspacecloud.com'
When i am not getting this exception, the method returns the expected result, as it should be.
Is there any specific reason why it does this?
Here is my .net code:
private async Task<XDocument> AuthenticateAsync()
{
XNamespace ns = "http://docs.rackspace.com/identity/api/ext/RAX-KSKEY/v1.0";
XDocument doc =
new XDocument(
new XDeclaration("1.0", "UTF-8", "Yes"),
new XElement("auth",
new XElement(ns + "apiKeyCredentials",
new XAttribute("username", "the userName"),
new XAttribute("apiKey", "the apiKey")
)
)
);
using (HttpClient client = new HttpClient())
{
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/xml"));
StringContent content = new StringContent(doc.ToString(), Encoding.UTF8, "application/xml");
// i randomly get "The remote name could not be resolved" exception
HttpResponseMessage response = await client.PostAsync("https://identity.api.rackspacecloud.com/v2.0/tokens", content);
response.EnsureSuccessStatusCode();
string stringResponse = await response.Content.ReadAsStringAsync();
return XDocument.Parse(stringResponse);
}
}
This certainly sounds like a DNS failure. Can you configure your machine to use the Google DNS servers and try again?
I am trying to connect to the survey monekey API with this code, which is not working. It says "Invalid API key" even though I got the API from the API console.
public void fetch() {
String url = "https://api.surveymonkey.net/v2/surveys/get_survey_list?api_key=" + apiKey;
System.out.println("request being sent");
System.out.println(url);
JSONObject obj = new JSONObject();
try {
// byte[] postDataBytes = obj.toJSONString().getBytes("UTF-8");
URL ourl = new URL(url.toString());
HttpURLConnection conn = (HttpURLConnection) ourl.openConnection();
conn.setDoOutput(true);
conn.setRequestMethod("POST");
conn.setRequestProperty("Authorization", "bearer " + accessToken);
conn.setRequestProperty("Content-Type", "application/json");
conn.getRequestProperty(obj.toString().getBytes("UTF-8").toString());
int k = conn.getResponseCode();
System.out.println("The response code received is " + k);
if (conn.getResponseCode() != 200) {
throw new RuntimeException("Failed : HTTP error code : "
+ conn.getResponseCode());
}
BufferedReader br = new BufferedReader(new InputStreamReader(
(conn.getInputStream())));
String output;
System.out.println("Output from Server .... \n");
output = br.readLine();
System.out.println(output);
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
Here's the error:
request being sent
https://api.surveymonkey.net/v2/surveys/get_survey_list?api_key=---API-KEY----
The response code received is 200
Output from Server ....
{"status":3,"errmsg":"Expected object or value"}
I just got this url from the API console.
Ensure you are using the API key associated with your developer account registered at http://developer.surveymonkey.com, not the sample API key the console uses to let you try requests. The sample api key is not meant to be used with apps, only on the API console.
That particular error is generated when an empty string is sent for the POST data. The API expects an empty object at minimum ("{}"). If the issue pointed out by Miles above was just a typo (using 'getRequestProperty' instead of 'setRequestProperty',) check if toString on an empty JSONObject is returning "" or "{}".
I'm working on a WinRT app that does login to a webpage and get some data. The problem is that I'm getting a "HttpRequestException: An error occurred while sending the request" message. Here is the code:
Uri url = new Uri("https://miyoigo-b.yoigo.com/selfcare/login");
HttpContent msg = new StringContent("account[cli]=" + number + "&password=" + pass);
HttpClientHandler handler = new HttpClientHandler();
handler.UseDefaultCredentials = true;
handler.UseCookies = true;
handler.CookieContainer = new CookieContainer();
HttpClient req = new HttpClient(handler);
req.DefaultRequestHeaders.Add("Host", "miyoigo-b.yoigo.com");
req.DefaultRequestHeaders.ExpectContinue = false;
HttpResponseMessage response = await req.PostAsync(url, msg);
string responseBody = await response.Content.ReadAsStringAsync();
I've been trying a lot of thing I found over the internet, even disabling my firewall, but nothing worked. I'm porting this from a Windows Phone app and it did work with this:
Uri url = new Uri("https://miyoigo-b.yoigo.com/selfcare/login");
HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create(url);
req.Method = "POST";
req.Headers["Host"] = "miyoigo-b.yoigo.com";
req.CookieContainer = new CookieContainer();
req.BeginGetRequestStream(new AsyncCallback(WriteCallback), req);
And afterwards, in the Callback I created a Stream and wrote the credentials.
Any idea?? I know that the problem is only with this webpage, maybe I'm forgetting to send something or the format of the POST content is not correct...
Thanks
Finally the problema was that Win8 Metro Apps only accepts SSL3.1 and this webpage was using SSL3.0. The solution was using the new version of the webpage.
Thank you all