Android Cannot POST /api response - android

I am trying to do HTTP post request in a REST backend. The URL for the backend is using SSL therefore I have also added the necessary code to handle that. But I got the following response:
Cannot POST /api
Here is my code:
protected String doInBackground(String... args) {
try {
HostnameVerifier hostnameVerifier = org.apache.http.conn.ssl.SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER;
DefaultHttpClient client = new DefaultHttpClient();
SchemeRegistry registry = new SchemeRegistry();
SSLSocketFactory socketFactory = SSLSocketFactory.getSocketFactory();
socketFactory.setHostnameVerifier((X509HostnameVerifier) hostnameVerifier);
registry.register(new Scheme("https", socketFactory, 443));
SingleClientConnManager mgr = new SingleClientConnManager(client.getParams(), registry);
DefaultHttpClient httpClient = new DefaultHttpClient(mgr, client.getParams());
HttpPost post = new HttpPost("https://test-api.smart-trial.dk/api");
List <NameValuePair> nvps = new ArrayList <NameValuePair>(2);
nvps.add(new BasicNameValuePair("path[pathwayId]","5566e151817a62021b1ea809"));
nvps.add(new BasicNameValuePair("formData[firstname]","Name"));
nvps.add(new BasicNameValuePair("formData[lastname]","XXX"));
nvps.add(new BasicNameValuePair("formData[email]","example#mail.com"));
post.addHeader("Referer" ,"https://myurl.com/api");
post.setEntity(new UrlEncodedFormEntity(nvps, HTTP.UTF_8));
//DefaultHttpClient httpClient = new DefaultHttpClient();
HttpResponse response = httpClient.execute(post);
HttpEntity entity = response.getEntity();
if (entity != null) {
// get the response content as a string
String stringResponse = EntityUtils.toString(entity);
Log.d("Response", stringResponse);
}
Anything wrong in the code ? Or at least why do I get that response.
EDIT
I also have some rules for the paramaters.
"The post should be done with x-www-form-urlencoded body parameters"
I think more or less I over that by using post.setEntity(new UrlEncodedFormEntity(nvps, HTTP.UTF_8)); which x-www-form-urlencoded.
Parameters:
pathwayId (should be located in path)
firstname (should be located in formData)
lastname (should be located in formData)
email (should be located in formData)
Referer (Should be located in Header)

Sounds like your server is not configured to allow POST requests to that URL. But you need a way to verify that.
If you don't already have a REST testing plugin for your browser, find a plugin that will allow you to enter POST request data, download it and install it.
Then duplicate the POST data in the browser plugin, submit the request and view the response from the server.
At least this should help you figure out if the problem is in the app or in the server.

Related

How to see full HttpPost Request using Apache HttpClient on Android

So I have code that contstructs a HttpPost request like the following...
public LoginForm apa;
....
SchemeRegistry schemeRegistry = new SchemeRegistry();
schemeRegistry.register(new Scheme("https",
SSLSocketFactory.getSocketFactory(), 443));
HttpParams httpparams = new BasicHttpParams();
SingleClientConnManager mgr = new SingleClientConnManager(httpparams, schemeRegistry);
HttpClient httpclient = new DefaultHttpClient(mgr, httpparams);
try {
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
for(String i : apa.getParams().keySet()){
nameValuePairs.add(new BasicNameValuePair(i, apa.getParams().get(i)));
}
List<NameValuePair> cookies = new ArrayList<NameValuePair>();
StringBuilder sb = new StringBuilder();
for(String i : apa.getCookies().keySet()){
sb.append(i);
sb.append("=");
sb.append(apa.getCookies().get(i));
sb.append(";");
}
// Trying to remove last ;
String cookie = sb.toString();
cookie = cookie.substring(0, cookie.length()-1);
HttpPost httppost = new HttpPost(URL);
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
httppost.setHeader(HTTP.CONTENT_TYPE, "application/x-www-form-urlencoded");
httppost.setHeader("Cookie", cookie);
// Execute HTTP Post Request
HttpResponse response = httpclient.execute(httppost);
System.out.println(EntityUtils.toString(response.getEntity()));
It isn't logging in quite as I would expect so is there a way to output the entire request (headers and all) to match it up with the one I see in my Chrome Dev Tools? Am I over thinking this? Is there a form login library for Android or Java in general? Do I need content-length added?
Printing the headers is easy - you can list them using method getAllHeaders.
If you need to print HttpEntity, you can use method writeTo to write whole entity into ByteArrayOutputStream and create a String using toString.

javax.net.ssl.sslpeerunverifiedexception no peer certificate

I am trying to insert a record into MySQL by posting data to a PHP server from an Android app. I have added the INTERNET permission to AndroidManifest.xml
I get javax.net.ssl.SSLPeerUnverifiedException: No peer certificate
Android code
private void senddata(ArrayList<NameValuePair> data)
{
try
{
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("https://10.0.2.2/insert222.php");
httppost.setEntity(new UrlEncodedFormEntity(data));
HttpResponse response = httpclient.execute(httppost);
}
catch (Exception e) {
// TODO: handle exception
Log.e("log_tag", "Error: "+e.toString());
}
}
Can anyone help?
Warning: Do not implement this in production code you are ever going to use on a network you do not entirely trust. Especially anything going over the public internet. This link gives more correct answer. Here is an implementation using SSL.
Your problem is you are using DefaultHttpClient for https(secure url).
Create a custom DefaultHttpClient
public static HttpClient createHttpClient()
{
HttpParams params = new BasicHttpParams();
HttpProtocolParams.setVersion(params, HttpVersion.HTTP_1_1);
HttpProtocolParams.setContentCharset(params, HTTP.DEFAULT_CONTENT_CHARSET);
HttpProtocolParams.setUseExpectContinue(params, true);
SchemeRegistry schReg = new SchemeRegistry();
schReg.register(new Scheme("http", PlainSocketFactory.getSocketFactory(), 80));
schReg.register(new Scheme("https", SSLSocketFactory.getSocketFactory(), 443));
ClientConnectionManager conMgr = new ThreadSafeClientConnManager(params, schReg);
return new DefaultHttpClient(conMgr, params);
}
Than change your code as follows:
HttpClient httpclient = createHttpClient();
HttpPost httppost = new HttpPost("https://10.0.2.2/insert222.php");
httppost.setEntity(new UrlEncodedFormEntity(data));
HttpResponse response = httpclient.execute(httppost);
Have a look at here if you have problems
It should work.
I had this issue with an IIS 8 server. In the https binding, I had to uncheck the checkbox labeled "Require Server Name Indication." Once I unchecked it, I quit getting the error.
I have to say all trusted certificates (trusted by authorized centres such as COMODO, Symantec, etc.) have to be work in any case. If your app recieves such javax.net.ssl.SSLPeerUnverifiedException: No peer certificate using bought certificate you give something wrong on server side.
To test use openssl s_client -connect example.com:443 command to get inner information about certificate your app recieve.
In may case my nginx-server sent wrong certificate in some cases.

Calling WCF from android over https with credentials

I am trying to call my RESTful WCF service over https on Android. I keep getting a 401: unauthorized error whenever I make the call. The other parts of my code work, ive tested it locally.
Here is the pertinent code:
// http scheme
schemeRegistry.register(new Scheme("http", PlainSocketFactory.getSocketFactory(), 80));
// https scheme
schemeRegistry.register(new Scheme("https", new EasySSLSocketFactory(), 443));
credentialsProvider = new BasicCredentialsProvider();
credentialsProvider.setCredentials(new AuthScope(AuthScope.ANY_HOST, AuthScope.ANY_PORT),
new UsernamePasswordCredentials("user", "pass"));
clientConnectionManager = new ThreadSafeClientConnManager(params, schemeRegistry);
context = new BasicHttpContext();
context.setAttribute("http.auth.credentials-provider", credentialsProvider);
HttpGet request = new HttpGet(SERVICE_URI + URL1 + EID);
request.setHeader("Accept", "application/json");
request.setHeader("Content-type", "application/json");
DefaultHttpClient client = new DefaultHttpClient(clientConnectionManager, params);
client.setCredentialsProvider(credentialsProvider);
HttpResponse response = client.execute(request, context);
HttpEntity responseEntity = response.getEntity();
EasySSLSocketFactory uses an implementation of X509TrustManager. I know that code works as well. Can someone please provide some advice. Nothing I have found works correctly.
Turns out, HttpClient doen't support NTLM authentication out of the box (im using IIS with windows auth). This link gave me everything I needed. Just copy and paste and forget about it.
http://hc.apache.org/httpcomponents-client-ga/ntlm.html

Make execute() of HttpDefaultClient very slow

I have massive performance problems with the execute method of the execute() method of the HttpDefaultClient.
I'm currently using this to post data to a Server, receiving JSON and deserialize the data. A call takes 8s to 30s on my phone. If I switch to Wifi (it's pretty fast, the same call takes 300ms on my PC) it takes 3s to 8s. At least 90% of that time is spend in the execute method.
Is use this code:
HttpPost post = new HttpPost(DEST_URL);
HashMap<String, String> params = req.getPostParams();
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
for (String key : params.keySet()) {
nameValuePairs.add(new BasicNameValuePair(key, params.get(key)));
}
post.setEntity(new UrlEncodedFormEntity(nameValuePairs));
post.setHeader(new BasicHeader(HTTP.CONTENT_TYPE, "application/json"));
HttpResponse response = httpClient.execute(post); // very slow!
return response;
We also develop an iOS app which is able to do the same within 1 to 2s. Is there a quicker way for http (https in the future)?
Creating the client like this:
HostnameVerifier hostnameVerifier = org.apache.http.conn.ssl.SSLSocketFactory.BROWSER_COMPATIBLE_HOSTNAME_VERIFIER;
final SSLSocketFactory socketFactory = SSLSocketFactory
.getSocketFactory();
socketFactory
.setHostnameVerifier((X509HostnameVerifier) hostnameVerifier);
SchemeRegistry registry = new SchemeRegistry();
registry.register(new Scheme("http", PlainSocketFactory.getSocketFactory(), 80));
registry.register(new Scheme("https", socketFactory, 443));
HttpsURLConnection.setDefaultHostnameVerifier(hostnameVerifier);
HttpParams params = new BasicHttpParams();
HttpProtocolParams.setVersion(params, HttpVersion.HTTP_1_1);
HttpProtocolParams.setContentCharset(params, HTTP.UTF_8);
HttpClient client = new DefaultHttpClient(params);
Using: HTC Wildfire, Android 2.2.1
codes above works fine.
if i create an httpclient the following way:
DefaultHttpClient httpClient = new DefaultHttpClient();
// httpclient
httpClient.getParams().setParameter(
CoreConnectionPNames.CONNECTION_TIMEOUT, mConnectionTimeOut);
httpClient.getParams().setParameter(CoreConnectionPNames.SO_TIMEOUT,
mSocketTimeOut);
for first time to post data to server and got response , it cost me 10--20 seconds.
but if i create an HttpClient following the answer above.
when first time to post data to server and got response , it cost just 4 seconds,and i think it works fine .

HTTPS In Android

I have implemented HTTP Post to post data to the backend. How do I implement HTTPS in Android (I have already configured the backend for https)?
I googled and found some solutions:
Secure HTTP Post in Android
and tried them but I do not receive any data in the backend.
Is it the correct way to implement? Is there any other method?
Below is my code snippet:
File file = new File(filepath);
HttpClient client = new DefaultHttpClient();
//String url = "http://test.....;
String url = "https://test......";
HttpPost post = new HttpPost(url);
FileEntity bin = new FileEntity(file, url);
post.setEntity(bin);
HttpResponse response = client.execute(post);
HttpEntity resEntity = response.getEntity();
Basically I am using fileentity to do a HTTPPost. Now I want to do this over https. After implementing https over at the backend I just modified http to https in the url and tested again. And it is not working.
Any idea how do i resolve this?
Thanks In Advance,
Perumal
Make sure your http client supports the SSL socket:
SchemeRegistry schemeRegistry = new SchemeRegistry();
schemeRegistry.register(new Scheme("http", PlainSocketFactory.getSocketFactory(), 80));
schemeRegistry.register(new Scheme("https", SSLSocketFactory.getSocketFactory(), 443));
HttpParams params = new BasicHttpParams();
ClientConnectionManager manager = new ThreadSafeClientConnManager(params, schemeRegistry);
HttpClient httpsClient = new DefaultHttpClient(manager, params);
and use this client to execute your POST request:
HttpPost post = new HttpPost("https://www.mysecuresite.com");
post.setHeader("Content-Type", "application/x-www-form-urlencoded");
post.setEntity(new StringEntity("This is the POST body", HTTP.UTF_8));
HttpResponse response = httpsClient.execute(post);

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