I have a problem, I have a server that logs into another server and gets some data.
The login works in NodeJS like this:
var data = {
login_act: "username",
login_pwd: "password"
};
request.post({url: 'https://example.com', form: data}, callback())`
and in Java like this:
try {
URL mUrl = new URL("https://example.com");
HttpURLConnection connection = (HttpURLConnection) mUrl.openConnection();
connection.setDoOutput(true);
connection.setInstanceFollowRedirects(false);
String urlParameters = "login_act=" + username + "&login_pwd=" + password;
byte[] postData = urlParameters.getBytes("UTF-8");
connection.setRequestMethod("POST");
connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
try( DataOutputStream wr = new DataOutputStream( connection.getOutputStream())) {
wr.write( postData );
}
}
I also made a C++ implementation of the same situation:
QNetworkAccessManager *vManager = new QNetworkAccessManager;
QNetworkRequest req;
req.setUrl(QUrl("https://example.com"));
req.setHeader(QNetworkRequest::ContentTypeHeader, "application/x-www-form-urlencoded");
QByteArray postData;
postData.append("login_act=" + username + "&");
postData.append("login_pwd=" + password + "");
connect(vManager, SIGNAL(finished(QNetworkReply*)), this, SLOT(authFinished(QNetworkReply*)));
QNetworkReply *reply = vManager->post(req, postData);
reply->ignoreSslErrors();
But when I try to do the same in Go it refuses to log in:
resp, error := http.PostForm("https://example.com", url.Values{"login_act": {"username"}, "login_pwd": {"password"}})
The site is build in such a way that, when login fails it just returns the standard site with the login form and if login suceeds it returns a 302 statuscode.
Maybe someone can help me I'm new to the go programming language and maybe I just miss something important.
Thanks in advance.
Related
I know there are many different situations that resemble mine across stackoverflow, but I just couldn't make the connection.
What I am trying to do, is to send a simple push notification to the GCM. I found two links for which I try to POST too. Note both these links work in this PHP script i found.
https://gcm-http.googleapis.com/gcm/send
https://android.googleapis.com/gcm/send
I tried to send push notifications from JS to the GCM, but many people have stated that this can not because of security issues. As of now, when I execute my code in Angular JS, I am getting a 405 error from https://gcm-http.googleapis.com/gcm/send. Status 405 means method not accepted (link for reference http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html).
Here is the code for JS. I have two method that I tried.
Method 1:
var xmlhttp = new XMLHttpRequest();
xmlhttp.onreadystatechange = function() {
if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
//ite
}
};
var jsonCall = {
registration_id: "xxxxxxxxxxxxxxxxxxxxxxxxxxxx-AEQtUUWnCVH566xcwib4HinI16W3_g"
};
xmlhttp.open("POST", "https://gcm-http.googleapis.com/gcm/send", true);
xmlhttp.setRequestHeader("Content-type", "application/json");
xmlhttp.setRequestHeader("Authorization", "xxxxxxxxxxxxxxxxxxxxxxxxxxxxx");
xmlhttp.send(jsonCall);
Method 2
var jsonCall = {
registration_id: "xxxxxxxxxxxxxxxxxxxxxxxxxxxx-AEQtUUWnCVH566xcwib4HinI16W3_g"
};
$http({
method:'POST',
url: 'https://gcm-http.googleapis.com/gcm/send',
data: jsonCall,
headers: {
'Authorization': 'A1nxxxxxxxxxxxxxxxxxx',
'Content-type': 'application/json' }
})
This is what I have tried in Java. Note that my project was not created as an Android project, but just as a normal Java project. I get a 411 error here, so I think the string I use as JSON is incorrect. Note that I get a 200 if I use GET.
Method 3:
HttpURLConnection connection = null;
try {
//Create connection
String json ="{\"registration_ids\":[\"xxxxxxxxxxxxxxxxxxxxxxxxxxxxx-xxxxxxxxxxxxx\"]}";
URL url = new URL("https://gcm-http.googleapis.com/gcm/send");
connection = (HttpURLConnection)url.openConnection();
connection.setDoOutput(true);
connection.setDoInput(true);
connection.setRequestMethod("POST");
connection.setRequestProperty("Content-Type", "application/json; charset=UTF-8");
connection.setRequestProperty("Content-Length", "0");
connection.setRequestProperty("Authorization", "key="+"xxxxxxxxxxxxxxxxxxxxxxxxxx");
System.out.println(connection.getResponseCode());
InputStream stream = (InputStream) connection.getInputStream();
InputStreamReader isReader = new InputStreamReader(stream);
//put output stream into a string
BufferedReader br = new BufferedReader(isReader);
String line;
while((line = br.readLine()) != null){
System.out.println(line);
}
OutputStream os = connection.getOutputStream();
os.write(json.getBytes("UTF-8"));
os.flush();
os.close();
} catch(Exception e){
System.out.println(e);
}
If someone can take a look at this, and set me in the correct direction, I would really appreciate it.
UPDATE:
I have gotten rid of that 411 error. I think it was because I never connected in the first place. Now I am getting the correct 200 code, but the push notification does not send. Is my JSON the correct format?
HttpURLConnection connection = null;
try {
//Create connection
String json ="{\"registration_ids\":[\"APA91bGxHWapgmxgyvPceu85ArDMLaFekbTt5RGzy3gv1xtSO09tJbvnaeVLefBqNl_iBrctoZQ2AltSMfrXykq8-AEQtUUWnCVH566xcwib4HinI16W3_g\"]}";
URL url = new URL("https://gcm-http.googleapis.com/gcm/send");
connection = (HttpURLConnection)url.openConnection();
connection.setDoOutput(true);
connection.setDoInput(true);
connection.setRequestMethod("POST");
connection.setRequestProperty("Content-Type", "application/json");
connection.setRequestProperty("Authorization", "key=xxxxxxxxxxxxxxxxxxxxxxx");
connection.connect();
OutputStream os = connection.getOutputStream();
os.write(json.getBytes("UTF-8"));
System.out.println(connection.getResponseCode());
InputStream stream = (InputStream) connection.getInputStream();
InputStreamReader isReader = new InputStreamReader(stream);
//put output stream into a string
BufferedReader br = new BufferedReader(isReader);
String line;
while((line = br.readLine()) != null){
System.out.println(line);
}
os.flush();
os.close();
} catch(Exception e){
System.out.println(e);
}
This has been solved using the Java method. JS keeps on returning those status codes of 400, 401, 411 etc. It turns out the reason Java returned a 200 but my phone did not receive anything was because my JSON was incorrect. Here is the correct JSON value:
String postData = "{ \"registration_ids\": [ \"" + CLIENT_REG_ID + "\" ], " +
"\"delay_while_idle\": true, " +
"\"data\": {\"tickerText\":\"My Ticket\", " +
"\"contentTitle\":\"My Title\", " +
"\"message\": \"Test GCM message from GCMServer-Android\"}}";
This was obtained from another question I posted, where a fellow SO member provided this solution.
I have created my server in amazon ec2 instance. Through my android app i am connecting to the server with HttpUrlConnection. But i get response code as -1. Does anyone has any idea ?? Here is my code.
private String getHttpResponse(final String srcUrl) {
HttpURLConnection urlConnection = null;
FileOutputStream fos = null;
try {
URL url = new URL(srcUrl);
urlConnection = (HttpURLConnection) url.openConnection();
urlConnection.setRequestMethod("GET");
urlConnection.setRequestProperty("Content-Type", "application/json");
mETag = readETagFromPrefForCategory();
urlConnection.setRequestProperty("If-None-Match", mETag);
Authenticator.setDefault(new Authenticator() {
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication("xyz", "abc".toCharArray());
}
});
urlConnection.connect();
mETag = urlConnection.getHeaderField("ETag");
if (urlConnection.getResponseCode() == HttpURLConnection.HTTP_NOT_MODIFIED) {
Log.v("http","not modifed");
return readLocalJson();
}
if (urlConnection.getResponseCode() != HttpURLConnection.HTTP_OK) {
Log.w(TAG, "Bad response [" + urlConnection.getResponseCode() + "] from (" + srcUrl + ")");
return null;
}}//end of try block
An answer in this post seemed to solve it for a few people:
Android Https Status code -1
Hope that helps.
The problem might be that your headers HTTP version is not properly formatted. Check this SO link where I have answered a similar question which worked for me.
Java Http~URLConnection response code -1
Why are you setting "Content-Type" on a GET request?
I'm having some problem consuming REST Service and want to figure out what I'm missing in implementation.
https://<server-name-or-address>/api/sessions
if I call this rest api using cURL, it works just fine by following script
curl -i -k -H "Accept:application/*+xml;version=1.5" -u username:password -X POST https://<server-name-or-address>/api/sessions
However, it isn't working at all with C# asp.net. I'm not sure what I'm missing here. Here are my attempts:
1) Using HTTP Web Request
Uri address = new Uri(url);
HttpWebRequest request = WebRequest.Create(address) as HttpWebRequest;
request.Method = "POST";
request.Accept = "application/*+xml;version=1.5";
request.Credentials = new NetworkCredential(username,password);
HttpWebResponse response = request.GetResponse() as HttpWebResponse;
// following exception fires on calling aforementioned statement
The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel.
2) Using Hammock.net
Hammock.RestClient client = new Hammock.RestClient();
string encodedAPIKey = Convert.ToBase64String(Encoding.UTF8.GetBytes(string.Format("{0}:{1}", username, password)));
client.AddHeader("Accept", "application/*+xml;version=1.5");
client.AddHeader("Authorization", "Basic " + username + ":" + password);
client.Authority = url;
Hammock.RestRequest req = new Hammock.RestRequest();
req.Path = url;
Hammock.RestResponse response = client.Request(req);
string _result = client.Request(req).Content; // exception
3) Using RestSharp
string _loginInfo = Convert.ToBase64String(Encoding.UTF8.GetBytes(string.Format("{0}:{1}", username, password)));
RestSharp.RestClient client = new RestSharp.RestClient();
client.AddDefaultHeader("Accept", "application/*+xml;version=1.5");
client.AddDefaultHeader("Authorization", "Basic " + _loginInfo);
client.BaseUrl = url;
RestSharp.RestRequest request = new RestSharp.RestRequest();
request.AddUrlSegment("method", "POST");
request.AddUrlSegment("uri", url);
string result = client.Execute(request).Content;
I also have tried with HttpClient, WebRequest, WebClient though nothing appears to work.
Try manually setting the Authorization header yourself in the HTTP request.
string credentials = String.Format("{0}:{1}", username, password);
byte[] bytes = Encoding.ASCII.GetBytes(credentials);
string base64 = Convert.ToBase64String(bytes);
string authorization = String.Concat("Basic ", base64);
request.Headers.Add("Authorization", authorization);
EDIT:
It looks as though it may be due to a self-signed, expired, or otherwise invalid cert. Try the following
ServicePointManager.ServerCertificateValidationCallback = delegate { return true; };
Gleaned from this SO: https://stackoverflow.com/questions/5595049/servicepointmanager-servercertificatevalidationcallback-question
I have to write an android client, in which i should use HttpComponents to connect to a specific Server on Port 8080.
For now, all i've found, was the Examplecode from the Apache-site, which is nearly perfect for what i need, except the Port it connects to:
if (isSet)
{
throw new IOException("Hostname or Port are not set!");
}
HttpClient httpclient = new DefaultHttpClient();
HttpGet httpget = new HttpGet(serverURL + ":" + serverPort + "/maps");
HttpResponse response = httpclient.execute(httpget);
HttpEntity entity = response.getEntity();
if (entity != null)
{
InputStream instream = entity.getContent();
int l;
byte[] tmp = new byte[2048];
while ((l = instream.read(tmp)) != -1)
{
}
}
Is there any way to change the Port?
Any help would be appreciated.
I know a little about HttpComponents, but I find an example code from Apache-site, which may help you. You can try to modify the code like below for your problem.
HttpHost target = new HttpHost("issues.apache.org", 443, "https");
HttpGet request = new HttpGet("/");
CloseableHttpResponse response = httpclient.execute(target, request);
Hey I have the following method
public static string GetShortenedURL(String inURL)
{
String shortURL = "";
String queryURL = "http://api.bit.ly/shorten?version=2.0.1&longUrl=" + inURL + "&login=&apiKey=";
HttpWebRequest request = WebRequest.Create(queryURL) as HttpWebRequest;
using (HttpWebResponse response = request.GetResponse() as HttpWebResponse)
{
StreamReader reader = new StreamReader(response.GetResponseStream());
string jsonResults = reader.ReadToEnd();
int indexOfBefore = jsonResults.IndexOf("shortUrl\": \"") + 12;
int indexOfAfter = jsonResults.IndexOf("\"", indexOfBefore);
shortURL = jsonResults.Substring(indexOfBefore, indexOfAfter - indexOfBefore);
}
return shortURL;
}
Which worked fine on my development machine, but on live server for some reason whenever I call this method I actually seems to visit the URL aswell. The reason why this is a problem is because that URL updates a status of a record. But I only want to do this when the user clicks on the link in the mail but for some very weird reason when Im creating the email on my confirmation page of registration and call this shortened URL method so I can add the short URL in my mail to send out,
it seems to visit it by itself. Hence updating my status when it shouldnt yet.
Any Ideas ?
EDIT : This is how i call it
emailBody.Append(M1Utils.GetShortenedURL(ConfigurationSettings.AppSettings["strSite_FEURL"].ToString() + "login/verify.aspx?" + strEncrypted)).Append("\r\n\r\n");