Example usage for java.net HttpURLConnection connect

List of usage examples for java.net HttpURLConnection connect

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Introduction

In this page you can find the example usage for java.net HttpURLConnection connect.

Prototype

public abstract void connect() throws IOException;

Source Link

Document

Opens a communications link to the resource referenced by this URL, if such a connection has not already been established.

Usage

From source file:com.orange.oidc.secproxy_service.HttpOpenidConnect.java

static String getUserInfo(String server_url, String access_token) {
    // android.os.Debug.waitForDebugger();

    Log.d(TAG, "getUserInfo server_url=" + server_url);
    Log.d(TAG, "getUserInfo access_token=" + access_token);

    // check if server is valid
    if (isEmpty(server_url) || isEmpty(access_token)) {
        return null;
    }/* ww  w.  j  a v  a2s.c  o m*/

    String userinfo_endpoint = getEndpointFromConfigOidc("userinfo_endpoint", server_url);
    if (isEmpty(userinfo_endpoint)) {
        Logd(TAG, "getUserInfo : could not get endpoint on server : " + server_url);
        return null;
    }

    Logd(TAG, "getUserInfo : " + userinfo_endpoint);
    // build connection
    HttpURLConnection huc = getHUC(userinfo_endpoint + "?access_token=" + access_token);
    huc.setInstanceFollowRedirects(false);
    // huc.setRequestProperty("Content-Type","application/x-www-form-urlencoded");

    huc.setRequestProperty("Authorization", "Bearer " + access_token);

    // default result
    String result = null;

    try {
        // try to establish connection 
        huc.connect();
        // get result
        int responseCode = huc.getResponseCode();
        Logd(TAG, "getUserInfo 2 response: " + responseCode);

        // if 200, read http body
        if (responseCode == 200) {
            InputStream is = huc.getInputStream();
            result = convertStreamToString(is);
            is.close();
        }

        // close connection
        huc.disconnect();

    } catch (Exception e) {
        Logd(TAG, "getUserInfo failed");
        e.printStackTrace();
    }

    return result;
}

From source file:com.roadwarrior.vtiger.client.NetworkUtilities.java

/**
 * Connects to the  server, authenticates the provided username and
 * password./*from www .  ja va  2s  .  co m*/
 * 
 * @param username The user's username
 * @param password The user's password
 * @return String The authentication token returned by the server (or null)
 */
public static String authenticate(String username, String accessKey, String base_url) {
    String token = null;
    String hash = null;
    authenticate_log_text = "authenticate()\n";
    AUTH_URI = base_url + "/webservice.php";
    authenticate_log_text = authenticate_log_text + "url: " + AUTH_URI + "?operation=getchallenge&username="
            + username + "\n";

    Log.d(TAG, "AUTH_URI : ");
    Log.d(TAG, AUTH_URI + "?operation=getchallenge&username=" + username);
    // =========== get challenge token ==============================
    ArrayList<NameValuePair> params = new ArrayList<NameValuePair>();
    try {

        URL url;

        // HTTP GET REQUEST
        url = new URL(AUTH_URI + "?operation=getchallenge&username=" + username);
        HttpURLConnection con;
        con = (HttpURLConnection) url.openConnection();
        con.setRequestMethod("GET");
        con.setRequestProperty("Content-length", "0");
        con.setUseCaches(false);
        // for some site that redirects based on user agent
        con.setInstanceFollowRedirects(true);
        con.setRequestProperty("User-Agent",
                "Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.0.15) Gecko/2009101600 Firefox/3.0.15");
        con.setAllowUserInteraction(false);
        int timeout = 20000;
        con.setConnectTimeout(timeout);
        con.setReadTimeout(timeout);
        con.connect();
        int status = con.getResponseCode();

        authenticate_log_text = authenticate_log_text + "Request status = " + status + "\n";
        switch (status) {
        case 200:
        case 201:
        case 302:
            BufferedReader br = new BufferedReader(new InputStreamReader(con.getInputStream()));
            StringBuilder sb = new StringBuilder();
            String line;
            while ((line = br.readLine()) != null) {
                sb.append(line + "\n");
            }
            br.close();
            Log.d(TAG, "message body");
            Log.d(TAG, sb.toString());

            authenticate_log_text = authenticate_log_text + "body : " + sb.toString();
            if (status == 302) {
                authenticate_log_text = sb.toString();
                return null;
            }

            JSONObject result = new JSONObject(sb.toString());
            Log.d(TAG, result.getString("result"));
            JSONObject data = new JSONObject(result.getString("result"));
            token = data.getString("token");
            break;
        case 401:
            Log.e(TAG, "Server auth error: ");// + readResponse(con.getErrorStream()));
            authenticate_log_text = authenticate_log_text + "Server auth error";
            return null;
        default:
            Log.e(TAG, "connection status code " + status);// + readResponse(con.getErrorStream()));
            authenticate_log_text = authenticate_log_text + "connection status code :" + status;
            return null;
        }

    } catch (ClientProtocolException e) {
        Log.i(TAG, "getchallenge:http protocol error");
        Log.e(TAG, e.getMessage());
        authenticate_log_text = authenticate_log_text + "ClientProtocolException :" + e.getMessage() + "\n";
        return null;
    } catch (IOException e) {
        Log.e(TAG, "getchallenge: IO Exception");
        Log.e(TAG, e.getMessage());
        Log.e(TAG, AUTH_URI + "?operation=getchallenge&username=" + username);
        authenticate_log_text = authenticate_log_text + "getchallenge: IO Exception : " + e.getMessage() + "\n";
        return null;

    } catch (JSONException e) {
        Log.i(TAG, "json exception");
        authenticate_log_text = authenticate_log_text + "JSon exception\n";

        // TODO Auto-generated catch block
        e.printStackTrace();
        return null;
    }

    // ================= login ==================

    try {
        MessageDigest m = MessageDigest.getInstance("MD5");
        m.update(token.getBytes());
        m.update(accessKey.getBytes());
        hash = new BigInteger(1, m.digest()).toString(16);
        Log.i(TAG, "hash");
        Log.i(TAG, hash);
    } catch (NoSuchAlgorithmException e) {
        authenticate_log_text = authenticate_log_text + "MD5 => no such algorithm\n";
        e.printStackTrace();
    }

    try {
        String charset;
        charset = "utf-8";
        String query = String.format("operation=login&username=%s&accessKey=%s",
                URLEncoder.encode(username, charset), URLEncoder.encode(hash, charset));
        authenticate_log_text = authenticate_log_text + "login()\n";
        URLConnection connection = new URL(AUTH_URI).openConnection();
        connection.setDoOutput(true); // Triggers POST.
        int timeout = 20000;
        connection.setConnectTimeout(timeout);
        connection.setReadTimeout(timeout);
        connection.setAllowUserInteraction(false);
        connection.setRequestProperty("Accept-Charset", charset);
        connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded;charset=" + charset);
        connection.setUseCaches(false);

        OutputStream output = connection.getOutputStream();
        try {
            output.write(query.getBytes(charset));
        } finally {
            try {
                output.close();
            } catch (IOException logOrIgnore) {

            }
        }
        Log.d(TAG, "Query written");
        BufferedReader br = new BufferedReader(new InputStreamReader(connection.getInputStream()));
        StringBuilder sb = new StringBuilder();
        String line;
        while ((line = br.readLine()) != null) {
            sb.append(line + "\n");
        }
        br.close();
        Log.d(TAG, "message post body");
        Log.d(TAG, sb.toString());
        authenticate_log_text = authenticate_log_text + "post message body :" + sb.toString() + "\n";
        JSONObject result = new JSONObject(sb.toString());

        String success = result.getString("success");
        Log.i(TAG, success);

        if (success == "true") {
            Log.i(TAG, result.getString("result"));
            Log.i(TAG, "sucesssfully logged  in is");
            JSONObject data = new JSONObject(result.getString("result"));
            sessionName = data.getString("sessionName");

            Log.i(TAG, sessionName);
            authenticate_log_text = authenticate_log_text + "successfully logged in\n";
            return token;
        } else {
            // success is false, retrieve error
            JSONObject data = new JSONObject(result.getString("error"));
            authenticate_log_text = "can not login :\n" + data.toString();

            return null;
        }
        //token = data.getString("token");
        //Log.i(TAG,token);
    } catch (ClientProtocolException e) {
        Log.d(TAG, "login: http protocol error");
        Log.d(TAG, e.getMessage());
        authenticate_log_text = authenticate_log_text + "HTTP Protocol error \n";
        authenticate_log_text = authenticate_log_text + e.getMessage() + "\n";
    } catch (IOException e) {
        Log.d(TAG, "login: IO Exception");
        Log.d(TAG, e.getMessage());

        authenticate_log_text = authenticate_log_text + "login: IO Exception \n";
        authenticate_log_text = authenticate_log_text + e.getMessage() + "\n";

    } catch (JSONException e) {
        Log.d(TAG, "JSON exception");
        // TODO Auto-generated catch block
        authenticate_log_text = authenticate_log_text + "JSON exception ";
        authenticate_log_text = authenticate_log_text + e.getMessage();
        e.printStackTrace();
    }
    return null;
    // ========================================================================

}

From source file:com.mabi87.httprequestbuilder.HTTPRequest.java

/**
 * @param connection/*  w  w w  . j ava2 s.c  o m*/
 *             the HttpURLConnection of web server page.
 * @throws IOException
 *             throws from HttpURLConnection method.
 * @return the HTTPResponse object
 */
private HTTPResponse readPage(HttpURLConnection connection) throws IOException {
    connection.connect();
    int responseCode = connection.getResponseCode();
    String lLine = null;

    String responseMessage = "";
    try {
        BufferedReader messageReader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
        StringBuilder messageBuilder = new StringBuilder();
        while ((lLine = messageReader.readLine()) != null) {
            messageBuilder.append(lLine);
            messageBuilder.append('\n');
        }
        messageReader.close();
        responseMessage = messageBuilder.toString();
    } catch (Exception e) {
        responseMessage = "";
    }

    String errorMessage = "";
    try {
        BufferedReader errorReader = new BufferedReader(new InputStreamReader(connection.getErrorStream()));
        StringBuilder errorBuilder = new StringBuilder();
        while ((lLine = errorReader.readLine()) != null) {
            errorBuilder.append(lLine);
            errorBuilder.append('\n');
        }
        errorReader.close();
        errorMessage = errorBuilder.toString();
    } catch (Exception e) {
        errorMessage = "";
    }

    connection.disconnect();
    return new HTTPResponse(responseCode, responseMessage, errorMessage);
}

From source file:dk.cafeanalog.AnalogDownloader.java

private ArrayList<Opening> getOpenings() throws IOException, JSONException, ParseException {
    if (System.currentTimeMillis() - mLastGet < TIME_BETWEEN_DOWNLOADS && mOpeningsCache != null) {
        return mOpeningsCache;
    }//  www .  j  a  va 2 s . c o m
    mLastGet = System.currentTimeMillis();
    URL url = new URL("http", "cafeanalog.dk", "api/shifts");
    HttpURLConnection connection = (HttpURLConnection) url.openConnection();

    connection.setRequestMethod("GET");
    connection.connect();

    BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
    StringBuilder builder = new StringBuilder();
    String s;
    while ((s = reader.readLine()) != null) {
        builder.append(s);
    }

    JSONArray array = new JSONArray(builder.toString());

    DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssZZZ", Locale.getDefault());

    ArrayList<Opening> openings = new ArrayList<>();

    for (int i = 0; i < array.length(); i++) {
        JSONObject object = array.getJSONObject(i);

        Date open = dateFormat.parse(object.getString("Open"));
        Date close = dateFormat.parse(object.getString("Close"));
        JSONArray nameArray = object.getJSONArray("Employees");
        List<String> names = new ArrayList<>();

        for (int j = 0; j < nameArray.length(); j++) {
            names.add(nameArray.getString(j));
        }

        openings.add(new Opening(open, close, names));
    }
    mOpeningsCache = openings;
    return openings;
}

From source file:de.onelogic.android.weatherdemo.WeatherFetchTask.java

private String downloadUrl(String urlString) throws IOException {
    URL url = new URL(urlString);
    HttpURLConnection conn = (HttpURLConnection) url.openConnection();
    conn.setReadTimeout(10000 /* milliseconds */);
    conn.setConnectTimeout(15000 /* milliseconds */);
    conn.setRequestMethod("GET");
    conn.setDoInput(true);/* www.  j av  a  2s  . c  om*/
    // Starts the query
    conn.connect();
    InputStream is = conn.getInputStream();

    BufferedReader reader = new BufferedReader(new InputStreamReader(is));

    String line = null;
    StringBuilder sb = new StringBuilder();
    while ((line = reader.readLine()) != null) {
        sb.append(line);
    }
    return sb.toString();
}

From source file:com.mnt.base.util.HttpUtil.java

public static String processPostRequest2Text(String url, Map<String, Object> parameters,
        Map<String, String> headerValue) {

    HttpURLConnection connection = null;

    try {// w  w  w .  j a v a  2  s  .  com
        connection = (HttpURLConnection) new URL(url).openConnection();
    } catch (IOException e) {
        log.error("Error while process http get request.", e);
    }

    if (connection != null) {
        try {
            connection.setRequestMethod("POST");
            connection.setDoOutput(true);
        } catch (ProtocolException e) {
            log.error("should not happen to get error while set the request method as GET.", e);
        }

        if (!CommonUtil.isEmpty(headerValue)) {
            for (String key : headerValue.keySet()) {
                connection.setRequestProperty(key, headerValue.get(key));
            }
        }

        // need to specify the content type for post request
        connection.setRequestProperty("Content-Type", "application/json");

        setTimeout(connection);

        String resultStr = null;

        try {
            connection.connect();

            if (parameters != null) {
                String jsonParams = null;

                try {
                    jsonParams = JSONTool.convertObjectToJson(parameters);
                } catch (Exception e) {
                    log.error("error while process parameters to json string.", e);
                }

                if (jsonParams != null) {
                    connection.getOutputStream().write(jsonParams.getBytes());
                    connection.getOutputStream().flush();
                }
            }

            resultStr = readData(connection.getInputStream());
        } catch (IOException e) {
            log.error("fail to connect to url: " + url, e);
        } finally {
            connection.disconnect();
        }

        return resultStr;
    }

    return null;
}

From source file:cn.ctyun.amazonaws.internal.EC2MetadataClient.java

/**
 * Connects to the metadata service to read the specified resource and
 * returns the text contents.//from ww w  .j  a  v a  2s.  c o m
 *
 * @param resourcePath
 *            The resource
 *
 * @return The text payload returned from the Amazon EC2 Instance Metadata
 *         service for the specified resource path.
 *
 * @throws IOException
 *             If any problems were encountered while connecting to metadata
 *             service for the requested resource path.
 * @throws AmazonClientException
 *             If the requested metadata service is not found.
 */
public String readResource(String resourcePath) throws IOException, AmazonClientException {
    URL url = getEc2MetadataServiceUrlForResource(resourcePath);
    log.debug("Connecting to EC2 instance metadata service at URL: " + url.toString());

    HttpURLConnection connection = (HttpURLConnection) url.openConnection();
    connection.setConnectTimeout(1000 * 2);
    connection.setRequestMethod("GET");
    connection.setDoOutput(true);
    connection.connect();

    return readResponse(connection);
}

From source file:imdbdataextract.IMDBDataExtract.java

public String Login(String url) throws MalformedURLException, IOException {
    try {/*w w  w .j a  v a 2s  .  com*/
        //this.BaseUrl = "https://api.themoviedb.org/3/movie/"+str+"?api_key=ff952840f45b98d699b51692ac712cdd";
        //this.BaseUrl="https://api.themoviedb.org/3/genre/movie/list?api_key=ff952840f45b98d699b51692ac712cdd&language=en-US";
        this.BaseUrl = url;
        //this.BaseUrl="http://api.themoviedb.org/3/movie/"+str+"/videos?api_key=ff952840f45b98d699b51692ac712cdd";
        HttpURLConnection httpcon = (HttpURLConnection) ((new URL(BaseUrl).openConnection()));
        httpcon.setDoOutput(true);
        httpcon.connect();
        BufferedReader inreader = new BufferedReader(new InputStreamReader(httpcon.getInputStream()));
        StringBuilder sb = new StringBuilder();
        String line;

        while ((line = inreader.readLine()) != null) {
            sb.append(line);
        }
        return sb.toString();
    } catch (Exception e) {
        System.out.println(e.getMessage());
        return "";
    }

}

From source file:it.evilsocket.dsploit.net.GitHubParser.java

private void fetchBranches() throws IOException, JSONException {
    HttpURLConnection connection;
    HttpURLConnection.setFollowRedirects(true);
    URL url = new URL(String.format(BRANCHES_URL, mUsername, mProject));
    connection = (HttpURLConnection) url.openConnection();
    connection.connect();
    int ret = connection.getResponseCode();

    if (ret != 200)
        throw new IOException(String.format("unable to retrieve branches from github: '%s' => %d",
                String.format(BRANCHES_URL, mUsername, mProject), ret));

    StringBuilder sb = new StringBuilder();
    BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
    String line;//w  ww.ja v  a2s  .co  m

    while ((line = reader.readLine()) != null)
        sb.append(line);

    mBranches = new JSONArray(sb.toString());
}

From source file:de.micmun.android.workdaystarget.DayCalculator.java

/**
 * Returns the list with holydays between now and target.
 *
 * @return the list with holydays between now and target.
 * @throws JSONException if parsing the holidays fails.
 */// ww  w . ja  v a  2  s .  co m
private ArrayList<Date> getHolidays() throws JSONException {
    ArrayList<Date> holidays = new ArrayList<Date>();

    String basisUrl = "http://kayaposoft.com/enrico/json/v1.0/"
            + "?action=getPublicHolidaysForDateRange&fromDate=%s&toDate=%s" + "&country=ger&region=Bavaria";
    SimpleDateFormat sdf = new SimpleDateFormat("dd-MM-yyyy", Locale.getDefault());

    String url = String.format(basisUrl, sdf.format(today.getTime()), sdf.format(target.getTime()));
    BufferedReader br = null;
    String text = null;

    try {
        URL httpUrl = new URL(url);
        HttpURLConnection con = (HttpURLConnection) httpUrl.openConnection();
        con.setRequestMethod("GET");
        con.connect();
        InputStream is = con.getInputStream();
        br = new BufferedReader(new InputStreamReader(is));
        StringBuffer sb = new StringBuffer();
        String line;

        while ((line = br.readLine()) != null) {
            sb.append(line);
            sb.append('\n');
        }
        br.close();
        text = sb.toString();
    } catch (MalformedURLException e) {
        System.err.println("FEHLER: " + e.getMessage());
        holidays = null;
    } catch (IOException e) {
        System.err.println("FEHLER: " + e.getMessage());
        holidays = null;
    } finally {
        if (br != null) {
            try {
                br.close();
            } catch (IOException ignored) {
            }
        }
    }

    if (text != null) {
        JSONArray array = new JSONArray(text);
        for (int i = 0; i < array.length(); ++i) {
            JSONObject h = array.getJSONObject(i);
            JSONObject o = h.getJSONObject("date");
            int day = o.getInt("day");
            int month = o.getInt("month");
            int year = o.getInt("year");
            Calendar cal = Calendar.getInstance();
            cal.set(Calendar.DAY_OF_MONTH, day);
            cal.set(Calendar.MONTH, month - 1);
            cal.set(Calendar.YEAR, year);
            setMidnight(cal);
            holidays.add(cal.getTime());
        }
    }

    return holidays;
}