Example usage for java.net HttpURLConnection getHeaderField

List of usage examples for java.net HttpURLConnection getHeaderField

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Introduction

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

Prototype

public String getHeaderField(int n)

Source Link

Document

Returns the value for the n th header field.

Usage

From source file:net.technicpack.utilslib.Utils.java

/**
 * Opens an HTTP connection to a web URL and tests that the response is a valid 200-level code
 * and we can successfully open a stream to the content.
 *
 * @param urlLoc The HTTP URL indicating the location of the content.
 * @return True if the content can be accessed successfully, false otherwise.
 *///from  w w w .j  a va  2  s. c om
public static boolean pingHttpURL(String urlLoc, MirrorStore mirrorStore) {
    InputStream stream = null;
    try {
        final URL url = mirrorStore.getFullUrl(urlLoc);
        HttpURLConnection conn = openHttpConnection(url);

        int responseCode = conn.getResponseCode();
        int responseFamily = responseCode / 100;

        if (responseFamily == 3) {
            String newUrl = conn.getHeaderField("Location");
            URL redirectUrl = null;
            try {
                redirectUrl = new URL(newUrl);
            } catch (MalformedURLException ex) {
                throw new DownloadException("Invalid Redirect URL: " + url, ex);
            }

            conn = openHttpConnection(redirectUrl);
            responseCode = conn.getResponseCode();
            responseFamily = responseCode / 100;
        }

        if (responseFamily == 2) {
            stream = conn.getInputStream();
            return true;
        } else {
            return false;
        }
    } catch (IOException e) {
        return false;
    } finally {
        IOUtils.closeQuietly(stream);
    }
}

From source file:org.rapidcontext.app.plugin.http.HttpPostProcedure.java

/**
 * Logs the HTTP response to the procedure call context.
 *
 * @param cx             the procedure call context
 * @param con            the HTTP connection
 * @param data           the HTTP response data
 *
 * @throws IOException if the HTTP response couldn't be extracted
 *//*  w  w w .  j a  v  a  2 s.  co m*/
private static void logResponse(CallContext cx, HttpURLConnection con, String data) throws IOException {

    cx.log(con.getHeaderField(0));
    for (int i = 1; true; i++) {
        String key = con.getHeaderFieldKey(i);
        if (key == null) {
            break;
        }
        cx.log("  " + key + ": " + con.getHeaderField(i));
    }
    if (data != null) {
        cx.log(data);
    }
}

From source file:Main.java

@SuppressLint("NewApi")
public static void getURL(String path) {
    String fileName = "";
    String dir = "/IndoorNavi/";
    File sdRoot = Environment.getExternalStorageDirectory();
    try {/*w  w  w . j  a v a2 s  . c om*/
        // Open the URLConnection for reading
        URL u = new URL(path);
        // URL u = new URL("http://www.baidu.com/");
        HttpURLConnection uc = (HttpURLConnection) u.openConnection();

        int code = uc.getResponseCode();
        String response = uc.getResponseMessage();
        //System.out.println("HTTP/1.x " + code + " " + response);
        for (int j = 1;; j++) {
            String key = uc.getHeaderFieldKey(j);
            String header = uc.getHeaderField(j);
            if (!(key == null)) {
                if (key.equals("Content-Name"))
                    fileName = header;
            }
            if (header == null || key == null)
                break;
            //System.out.println(uc.getHeaderFieldKey(j) + ": " + header);
        }
        Log.i("zhr", fileName);
        //System.out.println();

        try (InputStream in = new BufferedInputStream(uc.getInputStream())) {

            // chain the InputStream to a Reader
            Reader r = new InputStreamReader(in);
            int c;
            File mapFile = new File(sdRoot, dir + fileName);
            mapFile.createNewFile();
            FileOutputStream filecon = new FileOutputStream(mapFile);
            while ((c = r.read()) != -1) {
                //System.out.print((char) c);
                filecon.write(c);
                filecon.flush();

            }
            filecon.close();
        }

    } catch (MalformedURLException ex) {
        System.err.println(path + " is not a parseable URL");
    } catch (IOException ex) {
        System.err.println(ex);
    }
}

From source file:hudson.Main.java

/**
 * Run command and send result to {@code ExternalJob} in the {@code external-monitor-job} plugin.
 * Obsoleted by {@code SetExternalBuildResultCommand} but kept here for compatibility.
 *//*from   w  w  w  . j  av  a  2  s. c om*/
public static int remotePost(String[] args) throws Exception {
    String projectName = args[0];

    String home = getHudsonHome();
    if (!home.endsWith("/"))
        home = home + '/'; // make sure it ends with '/'

    // check for authentication info
    String auth = new URL(home).getUserInfo();
    if (auth != null)
        auth = "Basic " + new Base64Encoder().encode(auth.getBytes("UTF-8"));

    {// check if the home is set correctly
        HttpURLConnection con = open(new URL(home));
        if (auth != null)
            con.setRequestProperty("Authorization", auth);
        con.connect();
        if (con.getResponseCode() != 200 || con.getHeaderField("X-Hudson") == null) {
            System.err.println(home + " is not Hudson (" + con.getResponseMessage() + ")");
            return -1;
        }
    }

    URL jobURL = new URL(home + "job/" + Util.encode(projectName).replace("/", "/job/") + "/");

    {// check if the job name is correct
        HttpURLConnection con = open(new URL(jobURL, "acceptBuildResult"));
        if (auth != null)
            con.setRequestProperty("Authorization", auth);
        con.connect();
        if (con.getResponseCode() != 200) {
            System.err.println(jobURL + " is not a valid external job (" + con.getResponseCode() + " "
                    + con.getResponseMessage() + ")");
            return -1;
        }
    }

    // get a crumb to pass the csrf check
    String crumbField = null, crumbValue = null;
    try {
        HttpURLConnection con = open(
                new URL(home + "crumbIssuer/api/xml?xpath=concat(//crumbRequestField,\":\",//crumb)'"));
        if (auth != null)
            con.setRequestProperty("Authorization", auth);
        String line = IOUtils.readFirstLine(con.getInputStream(), "UTF-8");
        String[] components = line.split(":");
        if (components.length == 2) {
            crumbField = components[0];
            crumbValue = components[1];
        }
    } catch (IOException e) {
        // presumably this Hudson doesn't use CSRF protection
    }

    // write the output to a temporary file first.
    File tmpFile = File.createTempFile("jenkins", "log");
    try {
        int ret;
        try (OutputStream os = Files.newOutputStream(tmpFile.toPath());
                Writer w = new OutputStreamWriter(os, "UTF-8")) {
            w.write("<?xml version='1.1' encoding='UTF-8'?>");
            w.write("<run><log encoding='hexBinary' content-encoding='" + Charset.defaultCharset().name()
                    + "'>");
            w.flush();

            // run the command
            long start = System.currentTimeMillis();

            List<String> cmd = new ArrayList<String>();
            for (int i = 1; i < args.length; i++)
                cmd.add(args[i]);
            Proc proc = new Proc.LocalProc(cmd.toArray(new String[0]), (String[]) null, System.in,
                    new DualOutputStream(System.out, new EncodingStream(os)));

            ret = proc.join();

            w.write("</log><result>" + ret + "</result><duration>" + (System.currentTimeMillis() - start)
                    + "</duration></run>");
        } catch (InvalidPathException e) {
            throw new IOException(e);
        }

        URL location = new URL(jobURL, "postBuildResult");
        while (true) {
            try {
                // start a remote connection
                HttpURLConnection con = open(location);
                if (auth != null)
                    con.setRequestProperty("Authorization", auth);
                if (crumbField != null && crumbValue != null) {
                    con.setRequestProperty(crumbField, crumbValue);
                }
                con.setDoOutput(true);
                // this tells HttpURLConnection not to buffer the whole thing
                con.setFixedLengthStreamingMode((int) tmpFile.length());
                con.connect();
                // send the data
                try (InputStream in = Files.newInputStream(tmpFile.toPath())) {
                    org.apache.commons.io.IOUtils.copy(in, con.getOutputStream());
                } catch (InvalidPathException e) {
                    throw new IOException(e);
                }

                if (con.getResponseCode() != 200) {
                    org.apache.commons.io.IOUtils.copy(con.getErrorStream(), System.err);
                }

                return ret;
            } catch (HttpRetryException e) {
                if (e.getLocation() != null) {
                    // retry with the new location
                    location = new URL(e.getLocation());
                    continue;
                }
                // otherwise failed for reasons beyond us.
                throw e;
            }
        }
    } finally {
        tmpFile.delete();
    }
}

From source file:org.elegosproject.romupdater.DownloadManager.java

public static boolean sendAnonymousData() {
    String link = "http://www.elegosproject.org/android/upload.php";
    String data;/*from  w  w  w.ja  va  2  s . c o m*/

    SharedData shared = SharedData.getInstance();
    String romName = shared.getRepositoryROMName();
    String romVersion = shared.getDownloadVersion();
    String romPhone = shared.getRepositoryModel();
    String romRepository = shared.getRepositoryUrl();

    if (romName.equals("") || romVersion.equals("") || romPhone.equals("") || romRepository.equals("")) {
        Log.e(TAG, "Internal error - missing system variables.");
        return false;
    }

    if (!checkHttpFile(link))
        return false;
    try {
        data = URLEncoder.encode("phone", "UTF-8") + "=" + URLEncoder.encode(romPhone, "UTF-8");
        data += "&" + URLEncoder.encode("rom_name", "UTF-8") + "=" + URLEncoder.encode(romName, "UTF-8");
        data += "&" + URLEncoder.encode("rom_version", "UTF-8") + "=" + URLEncoder.encode(romVersion, "UTF-8");
        data += "&" + URLEncoder.encode("rom_repository", "UTF-8") + "="
                + URLEncoder.encode(romRepository, "UTF-8");

        HttpParams httpParameters = new BasicHttpParams();
        HttpConnectionParams.setConnectionTimeout(httpParameters, 3000);

        URL url = new URL(link);
        url.openConnection();
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setRequestMethod("POST");
        conn.setRequestProperty("User-Agent", "ROMUpdater");
        conn.setDoOutput(true);
        PrintWriter out = new PrintWriter(conn.getOutputStream());
        out.println(data);
        out.close();

        int status = Integer.parseInt(conn.getHeaderField("ROMUpdater-status"));
        if (status == 1)
            return true;

        Log.e(TAG, "It was impossible to send data to the stastistics server ("
                + conn.getHeaderField("ROMUpdater-error") + ").");
        return false;

    } catch (Exception e) {
        Log.e(TAG, "It was impossible to send data to the stastistics server.");
        Log.e(TAG, "Error: " + e.toString());
        return false;
    }
}

From source file:org.openbravo.test.datasource.DatasourceTestUtil.java

static String authenticate(String openbravoURL, String user, String password) throws Exception {
    final HttpURLConnection hc = DatasourceTestUtil.createConnection(openbravoURL,
            "/secureApp/LoginHandler.html", "POST", null);
    final OutputStream os = hc.getOutputStream();
    String content = "user=" + user + "&password=" + password;
    os.write(content.getBytes("UTF-8"));
    os.flush();//from  www  . j a v  a  2s .c o  m
    os.close();
    hc.connect();
    return hc.getHeaderField("Set-Cookie");
}

From source file:org.rhq.plugins.www.util.WWWUtils.java

/**
 * Get the content of the 'Server' header.
 *
 * @param httpURL a http or https URL to get the header from
 * @return the contents of the header or null if anything went wrong or the field was not present.
 *//*from  w  ww  .  j  a  v  a2 s .co m*/
public static String getServerHeader(URL httpURL) {
    String ret;

    try {
        HttpURLConnection connection = (HttpURLConnection) httpURL.openConnection();
        connection.setRequestMethod("HEAD");
        connection.setConnectTimeout(3000);
        connection.setReadTimeout(1000);

        connection.connect();
        // get the response code to actually trigger sending the Request.
        connection.getResponseCode();
        ret = connection.getHeaderField("Server");
    } catch (IOException e) {
        ret = null;
    }
    return ret;
}

From source file:org.omegat.util.WikiGet.java

/**
 * Parse response as string.//from w  w  w  .ja v a 2 s . com
 */
private static String getStringContent(HttpURLConnection conn) throws IOException {
    if (conn.getResponseCode() != HttpURLConnection.HTTP_OK) {
        throw new ResponseError(conn);
    }
    String contentType = conn.getHeaderField("Content-Type");
    int cp = contentType != null ? contentType.indexOf(CHARSET_MARK) : -1;
    String charset = cp >= 0 ? contentType.substring(cp + CHARSET_MARK.length()) : "ISO8859-1";

    try (InputStream in = conn.getInputStream()) {
        return IOUtils.toString(in, charset);
    }
}

From source file:org.grameenfoundation.consulteca.utils.HttpHelpers.java

private static InputStream getInputStream(HttpURLConnection httpUrlConnection) throws IOException {
    InputStream inputStream = httpUrlConnection.getInputStream();
    String contentEncoding = httpUrlConnection.getHeaderField("Content-Encoding");
    if (contentEncoding != null && contentEncoding.equalsIgnoreCase("gzip")) {
        inputStream = new GZIPInputStream(inputStream);
    }/*from   www. ja v a 2  s.  c om*/
    return inputStream;
}

From source file:org.apache.hadoop.yarn.client.TestRMFailover.java

static String getRefreshURL(String url) {
    String redirectUrl = null;/*from   w w w .  j  av a 2  s . c om*/
    try {
        HttpURLConnection conn = (HttpURLConnection) new URL(url).openConnection();
        // do not automatically follow the redirection
        // otherwise we get too many redirections exception
        conn.setInstanceFollowRedirects(false);
        redirectUrl = conn.getHeaderField("Refresh");
    } catch (Exception e) {
        // throw new RuntimeException(e);
    }
    return redirectUrl;
}