Example usage for java.net HttpURLConnection getHeaderFields

Introduction

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

Prototype

public Map<String, List<String>> getHeaderFields() 

Source Link

Document

Returns an unmodifiable Map of the header fields.

Usage

From source file:com.amastigote.xdu.query.module.EduSystem.java

private void preLogin() throws IOException {
    URL url = new URL(SYS_HOST);
    HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection();
    httpURLConnection.setInstanceFollowRedirects(false);
    httpURLConnection.connect();//from  w w w  .  j  a v a2s. c  o m
    List<String> cookies_to_set_a = httpURLConnection.getHeaderFields().get("Set-Cookie");
    for (String e : cookies_to_set_a)
        if (e.contains("JSESSIONID="))
            SYS_JSESSIONID = e.substring(e.indexOf("JSESSIONID=") + 11, e.indexOf(";"));
    httpURLConnection.disconnect();

    httpURLConnection = (HttpURLConnection) url.openConnection();
    httpURLConnection.setInstanceFollowRedirects(true);
    httpURLConnection.connect();

    List<String> cookies_to_set = httpURLConnection.getHeaderFields().get("Set-Cookie");
    for (String e : cookies_to_set) {
        if (e.contains("route="))
            ROUTE = e.substring(6);
        else if (e.contains("JSESSIONID="))
            LOGIN_JSESSIONID = e.substring(11, e.indexOf(";"));
        else if (e.contains("BIGipServeridsnew.xidian.edu.cn="))
            BIGIP_SERVER_IDS_NEW = e.substring(32, e.indexOf(";"));
    }

    BufferedReader bufferedReader = new BufferedReader(
            new InputStreamReader(httpURLConnection.getInputStream()));
    String html = "";
    String temp;

    while ((temp = bufferedReader.readLine()) != null) {
        html += temp;
    }

    Document document = Jsoup.parse(html);
    Elements elements = document.select("input[type=hidden]");

    for (Element element : elements) {
        switch (element.attr("name")) {
        case "lt":
            LOGIN_PARAM_lt = element.attr("value");
            break;
        case "execution":
            LOGIN_PARAM_execution = element.attr("value");
            break;
        case "_eventId":
            LOGIN_PARAM__eventId = element.attr("value");
            break;
        case "rmShown":
            LOGIN_PARAM_rmShown = element.attr("value");
            break;
        }
    }
}

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From source file:com.hpe.application.automation.tools.common.rest.RestClient.java

/**
 * @param connection/*from ww  w.  j  a v a2  s  .c  om*/
 *            that is already connected to its url with an http request, and that should contain
 *            a response for us to retrieve
 * @return a response from the server to the previously submitted http request
 */
private Response retrieveHtmlResponse(HttpURLConnection connection) {

    Response ret = new Response();

    try {
        ret.setStatusCode(connection.getResponseCode());
        ret.setHeaders(connection.getHeaderFields());
    } catch (Exception cause) {
        throw new SSEException(cause);
    }

    InputStream inputStream;
    // select the source of the input bytes, first try 'regular' input
    try {
        inputStream = connection.getInputStream();
    }
    // if the connection to the server somehow failed, for example 404 or 500,
    // con.getInputStream() will throw an exception, which we'll keep.
    // we'll also store the body of the exception page, in the response data. */
    catch (Exception e) {
        inputStream = connection.getErrorStream();
        ret.setFailure(e);
    }

    // this takes data from the previously set stream (error or input)
    // and stores it in a byte[] inside the response
    ByteArrayOutputStream container = new ByteArrayOutputStream();
    byte[] buf = new byte[1024];
    int read;
    try {
        while ((read = inputStream.read(buf, 0, 1024)) > 0) {
            container.write(buf, 0, read);
        }
        ret.setData(container.toByteArray());
    } catch (Exception ex) {
        throw new SSEException(ex);
    }

    return ret;
}

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From source file:winterwell.jtwitter.URLConnectionHttpClient.java

/**
 * Cache headers for {@link #getHeader(String)}
 * /*w  ww .  j ava2  s.  c  o  m*/
 * @param connection
 */
protected final void processHeaders(HttpURLConnection connection) {
    headers = connection.getHeaderFields();
    updateRateLimits();
}

---

From source file:org.jboss.aerogear.android.impl.http.HttpRestProviderTest.java

@Test
public void testGet() throws Exception {
    HttpURLConnection connection = mock(HttpURLConnection.class);
    HttpRestProvider provider = new HttpRestProvider(SIMPLE_URL);
    setPrivateField(provider, "connectionPreparer", new HttpUrlConnectionProvider(connection));

    doReturn(HttpStatus.SC_OK).when(connection).getResponseCode();
    when(connection.getInputStream()).thenReturn(new ByteArrayInputStream(RESPONSE_DATA));
    when(connection.getHeaderFields()).thenReturn(RESPONSE_HEADERS);

    HeaderAndBody result = provider.get();
    assertArrayEquals(RESPONSE_DATA, result.getBody());
    assertNotNull(result.getHeader(HEADER_KEY1_NAME));
    assertNotNull(result.getHeader(HEADER_KEY2_NAME));
    assertEquals(HEADER_VALUE, result.getHeader(HEADER_KEY2_NAME));

}

---

From source file:com.amastigote.xdu.query.module.EduSystem.java

@Override
public boolean login(String username, String password) throws IOException {
    preLogin();/*from  ww w .  j a v  a2s  .c o m*/
    URL url = new URL(LOGIN_HOST + LOGIN_SUFFIX);
    HttpURLConnection httpURLConnection_a = (HttpURLConnection) url.openConnection();
    httpURLConnection_a.setRequestMethod("POST");
    httpURLConnection_a.setUseCaches(false);
    httpURLConnection_a.setInstanceFollowRedirects(false);
    httpURLConnection_a.setDoOutput(true);

    String OUTPUT_DATA = "username=";
    OUTPUT_DATA += username;
    OUTPUT_DATA += "&password=";
    OUTPUT_DATA += password;
    OUTPUT_DATA += "&submit=";
    OUTPUT_DATA += "&lt=" + LOGIN_PARAM_lt;
    OUTPUT_DATA += "&execution=" + LOGIN_PARAM_execution;
    OUTPUT_DATA += "&_eventId=" + LOGIN_PARAM__eventId;
    OUTPUT_DATA += "&rmShown=" + LOGIN_PARAM_rmShown;

    httpURLConnection_a.setRequestProperty("Cookie",
            "route=" + ROUTE
                    + "; org.springframework.web.servlet.i18n.CookieLocaleResolver.LOCALE=zh_CN; JSESSIONID="
                    + LOGIN_JSESSIONID + "; BIGipServeridsnew.xidian.edu.cn=" + BIGIP_SERVER_IDS_NEW + ";");

    httpURLConnection_a.connect();
    OutputStreamWriter outputStreamWriter = new OutputStreamWriter(httpURLConnection_a.getOutputStream(),
            "UTF-8");
    outputStreamWriter.write(OUTPUT_DATA);
    outputStreamWriter.flush();
    outputStreamWriter.close();

    BufferedReader bufferedReader = new BufferedReader(
            new InputStreamReader(httpURLConnection_a.getInputStream()));
    String html = "";
    String temp;

    while ((temp = bufferedReader.readLine()) != null) {
        html += temp;
    }

    Document document = Jsoup.parse(html);
    Elements elements = document.select("a");
    if (elements.size() == 0)
        return false;
    String SYS_LOCATION = elements.get(0).attr("href");

    URL sys_location = new URL(SYS_LOCATION);
    HttpURLConnection httpUrlConnection_b = (HttpURLConnection) sys_location.openConnection();
    httpUrlConnection_b.setInstanceFollowRedirects(false);
    httpUrlConnection_b.connect();
    List<String> cookies_to_set = httpUrlConnection_b.getHeaderFields().get("Set-Cookie");
    for (String e : cookies_to_set)
        if (e.contains("JSESSIONID="))
            SYS_JSESSIONID = e.substring(11, e.indexOf(";"));
    httpURLConnection_a.disconnect();
    httpUrlConnection_b.disconnect();
    return checkIsLogin(username);
}

---

From source file:com.jeffrodriguez.webtools.client.URLConnectionWebClientImpl.java

@Override
public Map<String, List<String>> getHeaders(String url) throws IOException {

    logger.log(Level.INFO, "Getting HEAD from {0}", url);

    // Build and connect
    HttpURLConnection connection = buildConnection(url);
    connection.setDoInput(true);// w w w .j  av  a  2  s  .co m
    connection.setRequestMethod("HEAD");
    connection.connect();

    // Get the headers
    return disconnectAndReturn(connection, connection.getHeaderFields());
}

---

From source file:org.callimachusproject.test.WebResource.java

private WebResource findLink(String rel, boolean rev, String... types)
        throws IOException, MalformedURLException, ProtocolException {
    HttpURLConnection con = (HttpURLConnection) new URL(uri).openConnection();
    con.setRequestMethod("OPTIONS");
    Assert.assertEquals(con.getResponseMessage(), 204, con.getResponseCode());
    for (Map.Entry<String, List<String>> e : con.getHeaderFields().entrySet()) {
        if (!"Link".equalsIgnoreCase(e.getKey()))
            continue;
        for (String header : e.getValue()) {
            Assert.assertNotNull(header);
            Matcher m = LINK.matcher(header);
            while (m.find()) {
                if (rev && !header.contains("rev="))
                    continue;
                String href = m.group(1);
                String a = m.group(2);
                String r = m.group(3) != null ? m.group(3) : m.group(4);
                String t = m.group(5) != null ? m.group(5) : m.group(6);
                if (a != null && !TermFactoryImpl.newInstance(uri).resolve(a).equals(uri))
                    continue;
                if (!rel.equals(r))
                    continue;
                if (types.length == 0 || t == null)
                    return ref(href);
                for (String type : types) {
                    for (String t1 : t.split("\\s+")) {
                        if (t1.length() > 0 && t1.startsWith(type)) {
                            return ref(href);
                        }/*from   ww  w.  j av a2 s. c  o  m*/
                    }
                }
            }
        }
    }
    StringBuilder sb = new StringBuilder();
    sb.append("<").append(uri).append("?").append(rel);
    sb.append(">");
    if (rev) {
        sb.append("; rev=\"");
    } else {
        sb.append("; rel=\"");
    }
    sb.append(rel).append("\"; type=\"");
    for (String type : types) {
        sb.append(type).append(' ');
    }
    sb.setLength(sb.length() - 1);
    sb.append("\"");
    Assert.assertEquals(sb.toString(), con.getHeaderField("Link"));
    return null;
}

---

From source file:org.jboss.aerogear.android.impl.http.HttpRestProviderTest.java

private void testDelete(int statusCode) throws Exception {
    HttpURLConnection connection = mock(HttpURLConnection.class);
    HttpUrlConnectionProvider providerProvider = new HttpUrlConnectionProvider(connection);
    final String id = "1";

    when(connection.getResponseCode()).thenReturn(statusCode);
    when(connection.getInputStream()).thenReturn(new ByteArrayInputStream(EMPTY_DATA));
    when(connection.getErrorStream()).thenReturn(new ByteArrayInputStream(EMPTY_DATA));
    when(connection.getHeaderFields()).thenReturn(RESPONSE_HEADERS);
    doCallRealMethod().when(connection).setRequestMethod(anyString());
    when(connection.getRequestMethod()).thenCallRealMethod();

    HttpRestProvider provider = new HttpRestProvider(SIMPLE_URL);
    setPrivateField(provider, "connectionPreparer", providerProvider);

    HeaderAndBody result = provider.delete(id);

    assertArrayEquals(EMPTY_DATA, result.getBody());
    assertEquals("DELETE", connection.getRequestMethod());
    assertNotNull(result.getHeader(HEADER_KEY1_NAME));
    assertNotNull(result.getHeader(HEADER_KEY2_NAME));
    assertEquals(HEADER_VALUE, result.getHeader(HEADER_KEY2_NAME));
    assertEquals(id, providerProvider.id);
}

---

From source file:com.vaguehope.onosendai.util.HttpHelper.java

private static <R> R fetchWithFollowRedirects(final Method method, final URL url,
        final HttpStreamHandler<R> streamHandler, final int redirectCount)
        throws IOException, URISyntaxException {
    final HttpURLConnection connection = (HttpURLConnection) url.openConnection();
    try {//from w w w  .  j ava 2 s .  co  m
        connection.setRequestMethod(method.toString());
        connection.setInstanceFollowRedirects(false);
        connection.setConnectTimeout((int) TimeUnit.SECONDS.toMillis(HTTP_CONNECT_TIMEOUT_SECONDS));
        connection.setReadTimeout((int) TimeUnit.SECONDS.toMillis(HTTP_READ_TIMEOUT_SECONDS));
        connection.setRequestProperty("User-Agent", "curl/1"); // Make it really clear this is not a browser.
        //connection.setRequestProperty("Accept-Encoding", "identity"); This fixes missing Content-Length headers but feels wrong.
        connection.connect();

        InputStream is = null;
        try {
            final int responseCode = connection.getResponseCode();

            // For some reason some devices do not follow redirects. :(
            if (responseCode == 301 || responseCode == 302 || responseCode == 303 || responseCode == 307) { // NOSONAR not magic numbers.  Its HTTP spec.
                if (redirectCount >= MAX_REDIRECTS)
                    throw new TooManyRedirectsException(responseCode, url, MAX_REDIRECTS);
                final String locationHeader = connection.getHeaderField("Location");
                if (locationHeader == null)
                    throw new HttpResponseException(responseCode,
                            "Location header missing.  Headers present: " + connection.getHeaderFields() + ".");
                connection.disconnect();

                final URL locationUrl;
                if (locationHeader.toLowerCase(Locale.ENGLISH).startsWith("http")) {
                    locationUrl = new URL(locationHeader);
                } else {
                    locationUrl = url.toURI().resolve(locationHeader).toURL();
                }
                return fetchWithFollowRedirects(method, locationUrl, streamHandler, redirectCount + 1);
            }

            if (responseCode < 200 || responseCode >= 300) { // NOSONAR not magic numbers.  Its HTTP spec.
                throw new NotOkResponseException(responseCode, connection, url);
            }

            is = connection.getInputStream();
            final int contentLength = connection.getContentLength();
            if (contentLength < 1)
                LOG.w("Content-Length=%s for %s.", contentLength, url);
            return streamHandler.handleStream(connection, is, contentLength);
        } finally {
            IoHelper.closeQuietly(is);
        }
    } finally {
        connection.disconnect();
    }
}

---

From source file:org.jboss.aerogear.android.impl.http.HttpRestProviderTest.java

@Test
public void testPost() throws Exception {

    ByteArrayOutputStream outputStream = new ByteArrayOutputStream(RESPONSE_DATA.length);
    HttpURLConnection connection = mock(HttpURLConnection.class);
    HttpRestProvider provider = new HttpRestProvider(SIMPLE_URL);
    setPrivateField(provider, "connectionPreparer", new HttpUrlConnectionProvider(connection));

    doReturn(HttpStatus.SC_OK).when(connection).getResponseCode();
    when(connection.getInputStream()).thenReturn(new ByteArrayInputStream(RESPONSE_DATA));
    when(connection.getOutputStream()).thenReturn(outputStream);
    when(connection.getHeaderFields()).thenReturn(RESPONSE_HEADERS);
    doCallRealMethod().when(connection).setRequestMethod(anyString());
    when(connection.getRequestMethod()).thenCallRealMethod();

    HeaderAndBody result = provider.post(REQUEST_DATA);
    assertEquals("POST", connection.getRequestMethod());
    assertArrayEquals(RESPONSE_DATA, result.getBody());
    assertNotNull(result.getHeader(HEADER_KEY1_NAME));
    assertNotNull(result.getHeader(HEADER_KEY2_NAME));
    assertEquals(HEADER_VALUE, result.getHeader(HEADER_KEY2_NAME));
    assertArrayEquals(RESPONSE_DATA, outputStream.toByteArray());

}

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