I have to download and parse XML files from http server with HTTP Basic authentication. Now I'm doing it this way:
URL url = new URL("http://SERVER.WITHOUT.AUTHENTICATION/some.xml");
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
Document doc = db.parse(new InputSource(url.openStream()));
doc.getDocumentElement().normalize();
But in that way I can't get xml (or I'm just simply not aware of that ) document from server with http authentication.
I will be really grateful if you can show me the best and easiest way to reach my goal.
You can use an Authenticator. For example:
Authenticator.setDefault(new Authenticator() {
#Override
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(
"user", "password".toCharArray());
}
});
This sets the default Authenticator and will be used in all requests. Obviously the setup is more involved when you don't need credentials for all requests or a number of different credentials, maybe on different threads.
Alternatively you can use a DefaultHttpClient where a GET request with basic HTTP authentication would look similar to:
HttpClient httpClient = new DefaultHttpClient();
HttpGet httpGet = new HttpGet("http://foo.com/bar");
httpGet.addHeader(BasicScheme.authenticate(
new UsernamePasswordCredentials("user", "password"),
"UTF-8", false));
HttpResponse httpResponse = httpClient.execute(httpGet);
HttpEntity responseEntity = httpResponse.getEntity();
// read the stream returned by responseEntity.getContent()
I recommend using the latter because it gives you a lot more control (e.g. method, headers, timeouts, etc.) over your request.
public String reloadTomcatWebApplication(String user, String pwd, String urlWithParameters, boolean returnResponse) {
URL url = null;
try {
url = new URL(urlWithParameters);
} catch (MalformedURLException e) {
System.out.println("MalformedUrlException: " + e.getMessage());
e.printStackTrace();
return "-1";
}
URLConnection uc = null;
try {
uc = url.openConnection();
} catch (IOException e) {
System.out.println("IOException: " + e.getMessage());
e.printStackTrace();
return "-12";
}
String userpass = user + ":" + pwd;
String basicAuth = "Basic " + javax.xml.bind.DatatypeConverter.printBase64Binary(userpass.getBytes());
uc.setRequestProperty("Authorization", basicAuth);
InputStream is = null;
try {
is = uc.getInputStream();
} catch (IOException e) {
System.out.println("IOException: " + e.getMessage());
e.printStackTrace();
return "-13";
}
if (returnResponse) {
BufferedReader buffReader = new BufferedReader(new InputStreamReader(is));
StringBuffer response = new StringBuffer();
String line = null;
try {
line = buffReader.readLine();
} catch (IOException e) {
e.printStackTrace();
return "-1";
}
while (line != null) {
response.append(line);
response.append('\n');
try {
line = buffReader.readLine();
} catch (IOException e) {
System.out.println(" IOException: " + e.getMessage());
e.printStackTrace();
return "-14";
}
}
try {
buffReader.close();
} catch (IOException e) {
e.printStackTrace();
return "-15";
}
System.out.println("Response: " + response.toString());
return response.toString();
}
return "0";
}
Use HttpClient. Documentation for performing downloads with HTTP AUTH is here. Documentation for getting a string result is here. Then, parse your string (ideally using SAX, though, not DOM).
DefaultHttpClient deprecated
addHeader must have 2 parameters
Updated code block using HttpClient 4.5.2
HttpClient httpClient = HttpClientBuilder.create().build();
HttpGet httpGet = new HttpGet("https://test.com/abc.xyz");
httpGet.addHeader("Authorization", BasicScheme.authenticate(new UsernamePasswordCredentials("login", "password"), "UTF-8"));
HttpResponse httpResponse = httpClient.execute(httpGet);
HttpEntity responseEntity = httpResponse.getEntity();
As Gabe Rogan mentioned, "The method authenticate from BasicScheme has been deprecated".
An alternative way to do this,
HttpRequestBase hrb = new HttpGet(req.getUrl()); // should be your URL
UsernamePasswordCredentials Credential= new UsernamePasswordCredentials("id", "password");
Header header = new BasicScheme(StandardCharsets.UTF_8).authenticate(Credential, hrb, null);
hrb.addHeader(header);
Related
I want to write put Curl to java:
curl -X PUT -u username:password http://localhost:80/api/client/include/clientID
Thats what I googled but my problem is that how can I pass the value of client_id and client to put since there is an /include between them. I am a bit confused of how to write a curl. Can any one help me?
public String RestPutClient(String url, int newValue, int newValue2) {
// example url : http://localhost:80/api/
DefaultHttpClient httpClient = new DefaultHttpClient();
StringBuilder result = new StringBuilder();
try {
HttpPut putRequest = new HttpPut(url);
putRequest.addHeader("Content-Type", "application/json");
putRequest.addHeader("Accept", "application/json");
JSONObject keyArg = new JSONObject();
keyArg.put("value1", newValue);
keyArg.put("value2", newValue2);
StringEntity input;
try {
input = new StringEntity(keyArg.toString());
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
return success;
}
putRequest.setEntity(input);
HttpResponse response = httpClient.execute(putRequest);
if (response.getStatusLine().getStatusCode() != 200) {
throw new RuntimeException("Failed : HTTP error code : "
+ response.getStatusLine().getStatusCode());
}
BufferedReader br = new BufferedReader(new InputStreamReader(
(response.getEntity().getContent())));
String output;
while ((output = br.readLine()) != null) {
result.append(output);
}
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return result.toString();
}
I assume the parameters you are passing are supposed to represent client and clientID. You simply need to build the URL your passing to HttpPut from your parameters.
If these are your parameters
url = "http://localhost:80/api/";
newValue = "client";
newValue2 = "clientID";
then your HttpPut initialization would look like this
HttpPut putRequest = new HttpPut(url + newValue + "/include/" + newValue2);
Also see:
How do I concatenate two strings in Java?
I'm trying to make a post to a node.js server but for some reason the body is always empty for me no matter what I try.
I'm testing now towards requestb.in and its always empty there too.
This is the code I use for posting:
public static String post(String url, String json) {
StringBuilder stringBuffer = new StringBuilder();
BufferedReader bufferedReader = null;
try {
HttpClient httpClient = new DefaultHttpClient();
HttpContext localContext = new BasicHttpContext();
HttpPost httpPost = new HttpPost("http://requestb.in/14a9s7m1");
StringEntity se = new StringEntity("{'string':'string'}", HTTP.UTF_8);
se.setContentType("application/json; charset=UTF-8");
httpPost.setEntity(se);
httpPost.setHeader("Accept", "application/json");
httpPost.setHeader("Content-type", "application/json");
httpPost.setHeader("hmac", Methods.getMethods().getHmac(json));
HttpResponse httpResponse = httpClient.execute(httpPost, localContext);
InputStream inputStream = httpResponse.getEntity().getContent();
bufferedReader = new BufferedReader(new InputStreamReader(inputStream));
String readLine = bufferedReader.readLine();
while (readLine != null) {
stringBuffer.append(readLine);
stringBuffer.append("\n");
readLine = bufferedReader.readLine();
}
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (bufferedReader != null) {
try {
bufferedReader.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
return stringBuffer.toString();
}
This is the requestb.in http://requestb.in/14a9s7m1?inspect
raw body should contain the json string, right?
Any suggestions?
You can make many mistakes when using HttpUrlConnection. I admit that I don't see any error, but this doesn't mean anything.
Since Google doesn't recommend using HttpClient and AndroidHttpClient (except for FROYO or older), but we should use HttpUrlConnection instead, you're on the right way (from a Android perspective).
When using a very lightweight wrapper for HttpUrlConnection called DavidWebb, the code looks like this (I left out hmac-generation):
public class TestWebbRequestBin {
#Test public void stackOverflow20543115() throws Exception {
Webb webb = Webb.create();
webb.setBaseUri("http://requestb.in");
JSONObject jsonObject = new JSONObject();
jsonObject.put("string", "string");
String json = jsonObject.toString(); // {"string":"string"}
Response<String> response = webb
.post("/1g7afwn1")
.header("Accept", "application/json")
.header("Content-type", "application/json")
.header("hmac", "some-hmac-just-a-test")
.body(json)
.asString();
assertEquals(200, response.getStatusCode());
assertTrue(response.isSuccess());
String body = response.getBody();
assertEquals("ok\n", body);
}
}
When the JSON I post looks like in your example, requestb.in does accept it:
json = "{'string':'string'}";
But this is not valid JSON (here tested in node.js):
> JSON.parse("{'string':'string'}")
SyntaxError: Unexpected token '
at Object.parse (native)
at repl:1:7
at REPLServer.self.eval (repl.js:110:21)
at Interface.<anonymous> (repl.js:239:12)
tl;dr
Take care to send valid JSON
Master HttpUrlConnection or use a simple abstraction library
For nasty bugs you could either debug your node.js code (or console.log(req)) or use a tool like Wireshark.
Try this code to send the string.... In HttpPost you should use key value pairs to send the data.
HttpPost httppost = new HttpPost(SERVER_URL);
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(1);
nameValuePairs.add(new BasicNameValuePair("REQUEST", req));
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs, "UTF-8"));
HttpResponse response = httpclient.execute(httppost);
I am not sure is this the problems. Can you give a tried?
You are sending invalid JSON format string. This make server unable to accept your invalid json string so your body is empty. To solve this, change following code.
StringEntity se = new StringEntity("{\"string\":\"string\"}", HTTP.UTF_8);
I couldn't get HttpPost to work, but HttpUrlConnection works instead. It solves my problem, but doesn't solve the mysterious no body thing of httpPost.
Here is my solution:
public static String post(String ur2l, String json) {
StringBuilder stringBuffer = new StringBuilder();
BufferedReader bufferedReader = null;
try {
URL url = new URL(ur2l);
HttpURLConnection conn;
conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod("POST");
conn.setRequestProperty("Accept", "application/json");
conn.setRequestProperty("Content-type", "application/json");
conn.setRequestProperty("hmac", Methods.getMethods().getHmac(json));
conn.setDoOutput(true);
OutputStream os = null;
try {
os = conn.getOutputStream();
os.write(json.getBytes());
} catch (Exception e) {
e.printStackTrace();
}
os.close();
conn.connect();
int respCode = conn.getResponseCode();
if (respCode == 200) {
InputStream inputStream = conn.getInputStream();
bufferedReader = new BufferedReader(new InputStreamReader(inputStream));
String readLine = bufferedReader.readLine();
while (readLine != null) {
stringBuffer.append(readLine);
stringBuffer.append("\n");
readLine = bufferedReader.readLine();
}
}
} catch (MalformedURLException e1) {
e1.printStackTrace();
} catch (IOException e1) {
e1.printStackTrace();
} finally {
if (bufferedReader != null) {
try {
bufferedReader.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
return stringBuffer.toString();
}
I am having problems calling a simple JSON web service from an Android app. The .execute() completes successfully with an 200-OK Status however I am unable to read any JSON output or text.
For the record, if I HttpPost a regular webpage, like Google.com, I can read and parse all the markup. Also, I am able to call the complete urlWithParams string from the device's browser and I see JSON output in the browser. This works in device's browser:
http://maps.googleapis.com/maps/api/distancematrix/json?origins=Seattle&destinations=San+Francisco&mode=bicycling&language=fr-FR&sensor=false
When the code runs, the reader is always blank and reader.readLine() never runs. Returns an empty string. If I change the URL to Google.com, it works and returns 17,000 characters. Thanks!
protected String doInBackground(String... uri) {
String responseString = null;
try {
//String urlGoogle = "http://google.com";
//String urlWithParams = "http://maps.googleapis.com/maps/api/distancematrix/json?origins=Seattle&destinations=San+Francisco&mode=bicycling&language=fr-FR&sensor=false";
String urlOnly = "http://maps.googleapis.com/maps/api/distancematrix/json";
HttpClient httpclient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(urlOnly);
httpPost.setHeader("Accept", "application/json");
httpPost.setHeader("Content-type", "application/json");
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2);
nameValuePairs.add(new BasicNameValuePair("origins", "Seattle"));
nameValuePairs.add(new BasicNameValuePair("destinations", "Cleveland"));
nameValuePairs.add(new BasicNameValuePair("sensor", "false"));
httpPost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
HttpResponse response = httpclient.execute(httpPost);
int status = response.getStatusLine().getStatusCode();
HttpEntity entity = response.getEntity();
InputStream is = entity.getContent();
BufferedReader reader = new BufferedReader(new InputStreamReader(is, "UTF-8"));
StringBuilder sb = new StringBuilder();
String line = null;
try {
while ((line = reader.readLine()) != null) {
sb.append((line + "\n"));
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
is.close();
} catch (IOException e) {
e.printStackTrace();
}
responseString = sb.toString();
}}
catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
catch (ClientProtocolException e) {
e.printStackTrace();
}
catch (IOException e) {
e.printStackTrace();
}
return responseString;
}
Maybe you should test other mime types instead of application/json.
1 - Check in your manifest file having INTENET Permission or not.
2 - Use this code its returning data
BufferedReader reader = new BufferedReader(new InputStreamReader(is, "UTF-8"));
try {
String inputLine;
while ((inputLine = reader.readLine()) != null) {
responseString += inputLine;
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
is.close();
} catch (IOException e) {
e.printStackTrace();
}
}
Solved! The blank return when calling the JSON page was due to not having the proxy settings defined. Proxy settings were setup on the device however per this post, HttpClient does NOT inherit them.
Adding the following line resolved my issue. The code is now returning JSON.
HttpHost proxy = new HttpHost("172.21.31.239", 8080);
httpclient.getParams().setParameter(ConnRoutePNames.DEFAULT_PROXY, proxy);
I'm creating an application for our Android devices. The aim of this section is to post a username and password (currently just assigned as a string) to a web service and to receive a login token. When running the code, at the getOutputStream() line, my code terminates and will no progress any further.
I have assigned the android emulator GSM access and also set the proxy and DNS server within Eclipse. I'm not sure where to go with it now!
This is within my onHandleIntent():
protected void onHandleIntent(Intent i) {
try{
HttpURLConnection http_conn = (HttpURLConnection) new URL("http://www.XXXXX.com").openConnection();
http_conn.setRequestMethod("POST");
http_conn.setDoInput(true);
http_conn.setDoOutput(true);
http_conn.setRequestProperty("Content-type", "application/json; charset=utf-8");
String login = URLEncoder.encode("XXXXX", "UTF-8") + "=" + URLEncoder.encode("XX", "UTF-8");
login += "&" + URLEncoder.encode("XXXXX", "UTF-8") + "=" + URLEncoder.encode("XX", "UTF-8");
OutputStreamWriter wr = new OutputStreamWriter(http_conn.getOutputStream());
//TERMINATES HERE
wr.write(login);
wr.flush();
BufferedReader rd = new BufferedReader(new InputStreamReader(http_conn.getInputStream()));
String line = rd.toString();
wr.close();
rd.close();
http_conn.disconnect();
}
catch (IOException e){
}
}
This is my first go at java and have only been writing it for a few days so bear with me if I've missed something obvious.
Thanks
If you want to POST something using HTTP, why not use HTTP POST? ;-)
Here is an example snippet:
public void postData() {
// Create a new HttpClient and Post Header
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("http://www.yoursite.com/script.php");
try {
// Add your data
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2);
nameValuePairs.add(new BasicNameValuePair("id", "12345"));
nameValuePairs.add(new BasicNameValuePair("stringdata", "AndDev is Cool!"));
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
// Execute HTTP Post Request
HttpResponse response = httpclient.execute(httppost);
} catch (ClientProtocolException e) {
// TODO Auto-generated catch block
} catch (IOException e) {
// TODO Auto-generated catch block
}
}
Source: http://www.androidsnippets.com/executing-a-http-post-request-with-httpclient
This may not be the appropriate answer, but will certainly be helpful to you. I have used this code for sending and receiving the request and reply resp, to a webservice.
This code is working, but will need some Refactoring, as i have used some extra variable, which are not needed.
I have used the NameValuePair here for Post
public String postData(String url, String xmlQuery) {
final String urlStr = url;
final String xmlStr = xmlQuery;
final StringBuilder sb = new StringBuilder();
Thread t1 = new Thread(new Runnable() {
public void run() {
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost(urlStr);
try {
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(
1);
nameValuePairs.add(new BasicNameValuePair("xml", xmlStr));
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
HttpResponse response = httpclient.execute(httppost);
Log.d("Vivek", response.toString());
HttpEntity entity = response.getEntity();
InputStream i = entity.getContent();
Log.d("Vivek", i.toString());
InputStreamReader isr = new InputStreamReader(i);
BufferedReader br = new BufferedReader(isr);
String s = null;
while ((s = br.readLine()) != null) {
Log.d("YumZing", s);
sb.append(s);
}
Log.d("Check Now",sb+"");
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} /*
* catch (ParserConfigurationException e) { // TODO
* Auto-generated catch block e.printStackTrace(); } catch
* (SAXException e) { // TODO Auto-generated catch block
* e.printStackTrace(); }
*/
}
});
t1.start();
try {
t1.join();
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
System.out.println("Getting from Post Data Method "+sb.toString());
return sb.toString();
}
String line = rd.toString();
should be
String line = rd.readLine();
that might do the trick. rd.toString() gives you a String representation of your BufferedReader. It does not trigger the HTTP operation. I did not test your code, so there might be other errors as well, this was just the obvious one.
I've written some code for my Android device to login to a web site over HTTPS and parse some data out of the resulting pages. An HttpGet happens first to get some info needed for login, then an HttpPost to do the actual login process.
The code below works great in a Java project within Eclipse which has the following JAR files on the build path: httpcore-4.1-beta2.jar, httpclient-4.1-alpha2.jar, httpmime-4.1-alpha2.jar, and commons-logging-1.1.1.jar.
public static MyBean gatherData(String username, String password) {
MyBean myBean = new MyBean();
try {
HttpResponse response = doHttpGet(URL_PAGE_LOGIN, null, null);
System.out.println("Got login page");
String content = EntityUtils.toString(response.getEntity());
String token = ContentParser.getToken(content);
String cookie = getCookie(response);
System.out.println("Performing login");
System.out.println("token = "+token +" || cookie = "+cookie);
response = doLoginPost(username,password,cookie, token);
int respCode = response.getStatusLine().getStatusCode();
if (respCode != 302) {
System.out.println("ERROR: not a 302 redirect!: code is \""+ respCode+"\"");
if (respCode == 200) {
System.out.println(getHeaders(response));
System.out.println(EntityUtils.toString(response.getEntity()).substring(0, 500));
}
} else {
System.out.println("Logged in OK, loading account home");
// redirect handler and rest of parse removed
}
}catch (Exception e) {
System.out.println("ERROR in gatherdata: "+e.toString());
e.printStackTrace();
}
return myBean;
}
private static HttpResponse doHttpGet(String url, String cookie, String referrer) {
try {
HttpClient client = new DefaultHttpClient();
client.getParams().setParameter(CoreProtocolPNames.PROTOCOL_VERSION, HttpVersion.HTTP_1_1);
client.getParams().setParameter(CoreProtocolPNames.HTTP_CONTENT_CHARSET, "UTF-8");
HttpGet httpGet = new HttpGet(url);
httpGet.getParams().setParameter(CoreProtocolPNames.PROTOCOL_VERSION, HttpVersion.HTTP_1_1);
httpGet.setHeader(HEADER_USER_AGENT,HEADER_USER_AGENT_VALUE);
if (referrer != null && !referrer.equals("")) httpGet.setHeader(HEADER_REFERER,referrer);
if (cookie != null && !cookie.equals("")) httpGet.setHeader(HEADER_COOKIE,cookie);
return client.execute(httpGet);
} catch (Exception e) {
e.printStackTrace();
throw new ConnectException("Failed to read content from response");
}
}
private static HttpResponse doLoginPost(String username, String password, String cookie, String token) throws ClientProtocolException, IOException {
try {
HttpClient client = new DefaultHttpClient();
client.getParams().setParameter(CoreProtocolPNames.PROTOCOL_VERSION, HttpVersion.HTTP_1_1);
client.getParams().setParameter(CoreProtocolPNames.HTTP_CONTENT_CHARSET, "UTF-8");
HttpPost post = new HttpPost(URL_LOGIN_SUBMIT);
post.getParams().setParameter(CoreProtocolPNames.PROTOCOL_VERSION, HttpVersion.HTTP_1_1);
post.setHeader(HEADER_USER_AGENT,HEADER_USER_AGENT_VALUE);
post.setHeader(HEADER_REFERER, URL_PAGE_LOGIN);
post.setHeader(HEADER_COOKIE, cookie);
post.setHeader("Content-Type","application/x-www-form-urlencoded");
List<NameValuePair> formParams = new ArrayList<NameValuePair>();
formParams.add(new BasicNameValuePair("org.apache.struts.taglib.html.TOKEN", token));
formParams.add(new BasicNameValuePair("showLogin", "true"));
formParams.add(new BasicNameValuePair("upgrade", ""));
formParams.add(new BasicNameValuePair("username", username));
formParams.add(new BasicNameValuePair("password", password));
formParams.add(new BasicNameValuePair("submit", "Secure+Log+in"));
UrlEncodedFormEntity entity = new UrlEncodedFormEntity(formParams,HTTP.UTF_8);
post.setEntity(entity);
return client.execute(post);
} catch (Exception e) {
e.printStackTrace();
throw new ConnectException("ERROR in doLoginPost(): "+e.getMessage());
}
}
The server (which is not under my control) returns a 302 redirect when the login was successful, and 200 if it fails and re-loads the login page. When run with the above JAR files I get the 302 redirect, however if I run the exact same code from an Android project with the 1.6 Android JAR file on the build path I get the 200 response from the server. I get the same 200 response when running the code on my 2.2 device.
My android application has internet permissions, and the HttpGet works fine. I'm assuming that the problem lies in the fact that HttpPost (or some other class) is different in some significant way between the Android JAR version and the newer Apache versions.
I've tried adding the Apache libraries to the build path of the Android project, but due to the duplicate classes I get messages like: INFO/dalvikvm(390): DexOpt: not resolving ambiguous class 'Lorg/apache/http/impl/client/DefaultHttpClient;' in the log. I've also tried using a MultipartEntity instead of the UrlEncodedFormEntity but I get the same 200 result.
So, I have a few questions:
Can I force the code running under Android to use the newer Apache libraries in preference to the Android versions?
If not, does anyone have any ideas how can I alter my code so that it works with the Android JAR file?
Are there any other, totally different approaches to doing an HttpPost in Android?
Any other ideas?
I've read a lot of posts and code, but I'm not getting anywhere.
I have now given up on getting the HttpClient route to give the expected response from the server when run on Android. Instead I rewrote the doPost method above to use an HttpsURLConnection instead. Here's the new (working) version in the hope that it's useful to someone.
private static LoginBean altPost(String username, String password, String cookie, String token){
LoginBean loginBean = new LoginBean();
HttpsURLConnection urlc = null;
OutputStreamWriter out = null;
DataOutputStream dataout = null;
BufferedReader in = null;
try {
URL url = new URL(URL_LOGIN_SUBMIT);
urlc = (HttpsURLConnection) url.openConnection();
urlc.setRequestMethod("POST");
urlc.setDoOutput(true);
urlc.setDoInput(true);
urlc.setUseCaches(false);
urlc.setAllowUserInteraction(false);
urlc.setRequestProperty(HEADER_USER_AGENT, HEADER_USER_AGENT_VALUE_FF);
urlc.setRequestProperty("Cookie", cookie);
urlc.setRequestProperty("Content-Type","application/x-www-form-urlencoded");
String output = "org.apache.struts.taglib.html.TOKEN="+ URLEncoder.encode(token, HTTP.UTF_8)
+"&showLogin=true&upgrade=&username="+ URLEncoder.encode(username, HTTP.UTF_8)
+"&password="+ URLEncoder.encode(password, HTTP.UTF_8)+"&submit="
+URLEncoder.encode("Secure+Log+in", HTTP.UTF_8);
dataout = new DataOutputStream(urlc.getOutputStream());
// perform POST operation
dataout.writeBytes(output);
// get response info
loginBean.setResponseCode(urlc.getResponseCode());
// get required headers
String headerName = null;
StringBuffer newCookie = new StringBuffer(100);
String redirectLocation = "";
for (int i=1; (headerName = urlc.getHeaderField(i)) != null;i++) {
if (headerName.indexOf(COOKIE_VALUE_SESSION) > -1) {
if (newCookie.length() > 0) {newCookie.append("; ");}
newCookie.append(headerName);
}
if (headerName.indexOf(COOKIE_VALUE_AUTH) > -1) {
if (newCookie.length() > 0) {newCookie.append("; ");}
newCookie.append(headerName);
}
if (headerName.indexOf("https://") > -1) {
redirectLocation = headerName;
}
}
loginBean.setCookie(newCookie.toString());
loginBean.setRedirectUrl(redirectLocation);
in = new BufferedReader(new InputStreamReader(urlc.getInputStream()),8096);
String response;
// write html to System.out for debug
while ((response = in.readLine()) != null) {
System.out.println(response);
}
in.close();
} catch (ProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (out != null) {
try {
out.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if (in != null) {
try {
in.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
return loginBean;
}
I still have no idea why the HttpClient way didn't work properly.
To avoid the collisions, use this JAR file for httpclient:
httplib
And this post would also be very useful:
An answer to Stack Overflow question Apache HTTP client or URLConnection
Is it possible that this website does user-agent detection and actually returns different results because it's Android? Given that 200 implies success, why must it give a 302 instead of a 200? Have you printed out the result that you get when it returns a 200, and does it give any additional information?
Check the RedirectHandler, override the default one and do some logging in it, I had problems with that when going to Android...