Java Code Examples for org.apache.http.httpresponse#getFirstHeader()

public static String getFileNameFromHttpResponse(final HttpResponse response) {
    if (response == null) return null;
    String result = null;
    Header header = response.getFirstHeader("Content-Disposition");
    if (header != null) {
        for (HeaderElement element : header.getElements()) {
            NameValuePair fileNamePair = element.getParameterByName("filename");
            if (fileNamePair != null) {
                result = fileNamePair.getValue();
                // try to get correct encoding str
                result = CharsetUtils.toCharset(result, HTTP.UTF_8, result.length());
                break;
            }
        }
    }
    return result;
}
 

@SuppressForbidden(reason = "Needs currentTimeMillis to check against expiry headers from Solr")
protected void checkVetoHeaders(HttpResponse response, boolean checkExpires) throws Exception {
  Header head = response.getFirstHeader("Cache-Control");
  assertNotNull("We got no Cache-Control header", head);
  assertTrue("We got no no-cache in the Cache-Control header ["+head+"]", head.getValue().contains("no-cache"));
  assertTrue("We got no no-store in the Cache-Control header ["+head+"]", head.getValue().contains("no-store"));

  head = response.getFirstHeader("Pragma");
  assertNotNull("We got no Pragma header", head);
  assertEquals("no-cache", head.getValue());

  if (checkExpires) {
    head = response.getFirstHeader("Expires");
    assertNotNull("We got no Expires header:" + Arrays.asList(response.getAllHeaders()), head);
    Date d = DateUtils.parseDate(head.getValue());
    assertTrue("We got no Expires header far in the past", System
        .currentTimeMillis()
        - d.getTime() > 100000);
  }
}
 

public void handleErrorResponse(HttpResponse response, HttpRequestBase request) {
    int status = response.getStatusLine().getStatusCode();
    Header header = response.getFirstHeader("Err");
    String errMsg = (header != null && header.getValue() != null) ? header.getValue() : "";
    if (401 == status) {
        logger.info(">>WARNING: Unauthorized!msg:{},request:{}", errMsg, request.toString());
    } else if (403 == status) {
        logger.info(">>WARNING: Forbidden!msg:{},request:{}", errMsg, request.toString());
    } else if (404 == status) {
        logger.debug(">>WARNING: ResourceNotFound!msg:{},request:{}", errMsg,
            request.toString());
    } else if (555 == status) {
        logger.info(">>WARNING: gateway current limit!msg:{},request:{}", errMsg,
            request.toString());
    } else {
        logger.info(">>WARNING: send to gateway fail!status:{}!msg:{}request:{}", status,
            errMsg, request.toString());
    }
    //change silentTime
    if (response.containsHeader(WAIT_MINUTES)) {
        String waitMinutesStr = response.getFirstHeader(WAIT_MINUTES).getValue();
        changeSilentTime(waitMinutesStr);
    }
}
 

/** Easy method for HTTP header values (first/last) */
private String getSimpleHeaderValue(String header, HttpResponse httpResponse, boolean first) {
  if (StringUtils.isBlank(header)) {
    return StringUtils.EMPTY;
  }

  Header h;
  if (first) {
    h = httpResponse.getFirstHeader(header);
  } else {
    h = httpResponse.getLastHeader(header);
  }
  if (h == null) {
    return null;
  }
  return h.getValue();
}
 

@SuppressWarnings("unchecked")
@Override
public FileContentInfo create(final FileContent fileContent) throws FileSystemException {
    String contentMimeType = null;
    String contentCharset = null;

    try (final Http4FileObject<Http4FileSystem> http4File = (Http4FileObject<Http4FileSystem>) FileObjectUtils
            .getAbstractFileObject(fileContent.getFile())) {
        final HttpResponse lastHeadResponse = http4File.getLastHeadResponse();

        final Header header = lastHeadResponse.getFirstHeader(HTTP.CONTENT_TYPE);

        if (header != null) {
            final ContentType contentType = ContentType.parse(header.getValue());
            contentMimeType = contentType.getMimeType();

            if (contentType.getCharset() != null) {
                contentCharset = contentType.getCharset().name();
            }
        }

        return new DefaultFileContentInfo(contentMimeType, contentCharset);
    } catch (final IOException e) {
        throw new FileSystemException(e);
    }
}
 

/**
 * Handle a 3xx redirect status.
 */
private void handleRedirect(State state, HttpResponse response, int statusCode)
        throws StopRequest, RetryDownload {
    if (Constants.LOGVV) {
        Log.v(Constants.TAG, "got HTTP redirect " + statusCode);
    }
    if (state.mRedirectCount >= Constants.MAX_REDIRECTS) {
        throw new StopRequest(DownloaderService.STATUS_TOO_MANY_REDIRECTS, "too many redirects");
    }
    Header header = response.getFirstHeader("Location");
    if (header == null) {
        return;
    }
    if (Constants.LOGVV) {
        Log.v(Constants.TAG, "Location :" + header.getValue());
    }

    String newUri;
    try {
        newUri = new URI(mInfo.mUri).resolve(new URI(header.getValue())).toString();
    } catch (URISyntaxException ex) {
        if (Constants.LOGV) {
            Log.d(Constants.TAG, "Couldn't resolve redirect URI " + header.getValue()
                    + " for " + mInfo.mUri);
        }
        throw new StopRequest(DownloaderService.STATUS_HTTP_DATA_ERROR,
                "Couldn't resolve redirect URI");
    }
    ++state.mRedirectCount;
    state.mRequestUri = newUri;
    throw new RetryDownload();
}
 

protected boolean isExplicitlyCacheable(HttpResponse response) {
	if (response.getFirstHeader(HeaderConstants.EXPIRES) != null)
		return true;
	String[] cacheableParams = { "max-age", "s-maxage", "must-revalidate",
			"proxy-revalidate", "public" };
	return hasCacheControlParameterFrom(response, cacheableParams);
}
 

@Test
public void testDataServiceVersionCase() throws Exception {
  HttpResponse response = callUri("Employees");
  Header header = response.getFirstHeader("dataserviceversion");
  assertNotNull(header);
  assertEquals(ODataServiceVersion.V20, header.getValue());

  checkVersion(response, ODataServiceVersion.V20);
}
 

@Test
public void atomFormatForServiceDocument() throws Exception {
  final HttpResponse response = executeGetRequest("?$format=atom");

  final String responseEntity = StringHelper.httpEntityToString(response.getEntity());
  assertEquals("Test passed.", responseEntity);
  assertEquals(HttpStatusCodes.OK.getStatusCode(), response.getStatusLine().getStatusCode());

  final Header header = response.getFirstHeader(HttpHeaders.CONTENT_TYPE);
  assertEquals(HttpContentType.APPLICATION_ATOM_SVC_UTF8, header.getValue());
}
 

private static HashValue getSha1(HttpResponse response, String etag) {
    Header sha1Header = response.getFirstHeader("X-Checksum-Sha1");
    if (sha1Header != null) {
        return new HashValue(sha1Header.getValue());    
    }

    // Nexus uses sha1 etags, with a constant prefix
    // e.g {SHA1{b8ad5573a5e9eba7d48ed77a48ad098e3ec2590b}}
    if (etag != null && etag.startsWith("{SHA1{")) {
        String hash = etag.substring(6, etag.length() - 2);
        return new HashValue(hash);
    }

    return null;
}
 

/**
 * Handle a 503 Service Unavailable status by processing the Retry-After
 * header.
 */
private void handleServiceUnavailable(State state, HttpResponse response) throws StopRequest {
    if (Constants.LOGVV) {
        Log.v(Constants.TAG, "got HTTP response code 503");
    }
    state.mCountRetry = true;
    Header header = response.getFirstHeader("Retry-After");
    if (header != null) {
        try {
            if (Constants.LOGVV) {
                Log.v(Constants.TAG, "Retry-After :" + header.getValue());
            }
            state.mRetryAfter = Integer.parseInt(header.getValue());
            if (state.mRetryAfter < 0) {
                state.mRetryAfter = 0;
            } else {
                if (state.mRetryAfter < Constants.MIN_RETRY_AFTER) {
                    state.mRetryAfter = Constants.MIN_RETRY_AFTER;
                } else if (state.mRetryAfter > Constants.MAX_RETRY_AFTER) {
                    state.mRetryAfter = Constants.MAX_RETRY_AFTER;
                }
                state.mRetryAfter += Helpers.sRandom.nextInt(Constants.MIN_RETRY_AFTER + 1);
                state.mRetryAfter *= 1000;
            }
        } catch (NumberFormatException ex) {
            // ignored - retryAfter stays 0 in this case.
        }
    }
    throw new StopRequest(DownloaderService.STATUS_WAITING_TO_RETRY,
            "got 503 Service Unavailable, will retry later");
}
 

@Test
public void whenResponseIsCommitedWeShouldReceiveInitValues() throws IOException {
	final HttpResponse response = get("closeResponse", "initialVal=0815");
	assertThat(response.getStatusLine().getStatusCode(), equalTo(200));
	final Header traceeResponseHeader = response.getFirstHeader(TPIC_HEADER);
	assertThat(traceeResponseHeader, notNullValue());
	assertThat(traceeResponseHeader.getValue(), containsString("initialVal=0815"));
	assertThat(traceeResponseHeader.getValue(), not(containsString("initialVal=laterValue321")));
}
 

@Test
public void atomFormatForServiceDocument() throws Exception {
  final HttpResponse response = executeGetRequest("?$format=atom");

  final String responseEntity = StringHelper.httpEntityToString(response.getEntity());
  assertEquals("Test passed.", responseEntity);
  assertEquals(HttpStatusCodes.OK.getStatusCode(), response.getStatusLine().getStatusCode());

  final Header header = response.getFirstHeader(HttpHeaders.CONTENT_TYPE);
  assertEquals(HttpContentType.APPLICATION_ATOM_SVC_UTF8, header.getValue());
}
 

@Override
public List<MultiStatusResponse> handleResponse(HttpResponse response) {
    this.response = response;
    Header contentTypeHeader = response.getFirstHeader("Content-Type");
    if (contentTypeHeader != null && "text/xml".equals(contentTypeHeader.getValue())) {
        responses = new ArrayList<>();
        XMLStreamReader reader;
        try {
            reader = XMLStreamUtil.createXMLStreamReader(new FilterInputStream(response.getEntity().getContent()) {
                final byte[] lastbytes = new byte[3];

                @Override
                public int read(byte[] bytes, int off, int len) throws IOException {
                    int count = in.read(bytes, off, len);
                    // patch invalid element name
                    for (int i = 0; i < count; i++) {
                        byte currentByte = bytes[off + i];
                        if ((lastbytes[0] == '<') && (currentByte >= '0' && currentByte <= '9')) {
                            // move invalid first tag char to valid range
                            bytes[off + i] = (byte) (currentByte + 49);
                        }
                        lastbytes[0] = lastbytes[1];
                        lastbytes[1] = lastbytes[2];
                        lastbytes[2] = currentByte;
                    }
                    return count;
                }

            });
            while (reader.hasNext()) {
                reader.next();
                if (XMLStreamUtil.isStartTag(reader, "response")) {
                    handleResponse(reader);
                }
            }

        } catch (IOException | XMLStreamException e) {
            LOGGER.error("Error while parsing soap response: " + e, e);
        }
    }
    return responses;
}
 

private Header getContentEncoding(final HttpResponse response) {
    return response.getFirstHeader("Content-Encoding");
}
 

@Override
protected void doETag(String method) throws Exception {
  HttpRequestBase get = getSelectMethod(method);
  HttpResponse response = getClient().execute(get);
  checkResponseBody(method, response);

  assertEquals("Got no response code 200 in initial request", 200, response
      .getStatusLine().getStatusCode());

  Header head = response.getFirstHeader("ETag");
  assertNull("We got an ETag in the response", head);

  // If-None-Match tests
  // we set a non matching ETag
  get = getSelectMethod(method);
  get.addHeader("If-None-Match", "\"xyz123456\"");
  response = getClient().execute(get);
  checkResponseBody(method, response);
  assertEquals(
      "If-None-Match: Got no response code 200 in response to non matching ETag",
      200, response.getStatusLine().getStatusCode());

  // we now set the special star ETag
  get = getSelectMethod(method);
  get.addHeader("If-None-Match", "*");
  response = getClient().execute(get);
  checkResponseBody(method, response);
  assertEquals("If-None-Match: Got no response 200 for star ETag", 200,
      response.getStatusLine().getStatusCode());

  // If-Match tests
  // we set a non matching ETag
  get = getSelectMethod(method);
  get.addHeader("If-Match", "\"xyz123456\"");
  response = getClient().execute(get);
  checkResponseBody(method, response);
  assertEquals(
      "If-Match: Got no response code 200 in response to non matching ETag",
      200, response.getStatusLine().getStatusCode());

  // now we set the special star ETag
  get = getSelectMethod(method);
  get.addHeader("If-Match", "*");
  response = getClient().execute(get);
  checkResponseBody(method, response);
  assertEquals("If-Match: Got no response 200 to star ETag", 200, response
      .getStatusLine().getStatusCode());
}
 

private static void fileUpload() throws Exception {
    
    
    file = new File("C:\\Documents and Settings\\dinesh\\Desktop\\NU.txt");
    
    HttpClient httpclient = new DefaultHttpClient();
    
    HttpPost httppost = new HttpPost(postURL);
    if (login) {
        httppost.setHeader("Cookie", usercookie);
    }
    
    MultipartEntity mpEntity = new MultipartEntity(HttpMultipartMode.BROWSER_COMPATIBLE);
    ContentBody cbFile = new FileBody(file);
    if (login) {
        mpEntity.addPart("upload_hash", new StringBody(upload_hash));
    } 
    mpEntity.addPart("file", cbFile);
    httppost.setEntity(mpEntity);
    System.out.println("executing request " + httppost.getRequestLine());
    System.out.println("Now uploading your file into netload");
    HttpResponse response = httpclient.execute(httppost);
    HttpEntity resEntity = response.getEntity();
    
    
    System.out.println(response.getStatusLine());
    Header firstHeader = response.getFirstHeader("Location");
    System.out.println(firstHeader.getValue());
    uploadresponse = getData(firstHeader.getValue());
    System.out.println("Upload response : " + uploadresponse);
    downloadlink = parseResponse(uploadresponse, "The download link is: <br/>", "\" target=\"_blank\">");
    downloadlink = downloadlink.substring(downloadlink.indexOf("href=\""));
    downloadlink = downloadlink.replace("href=\"", "");
    System.out.println("download link : " + downloadlink);
    deletelink = parseResponse(uploadresponse, "The deletion link is: <br/>", "\" target=\"_blank\">");
    deletelink = deletelink.substring(deletelink.indexOf("href=\""));
    deletelink = deletelink.replace("href=\"", "");
    System.out.println("delete link : " + deletelink);
    httpclient.getConnectionManager().shutdown();
    
}
 

@Override
protected void doLastModified(String method) throws Exception {
  // We do a first request to get the last modified
  // This must result in a 200 OK response
  HttpRequestBase get = getSelectMethod(method);
  HttpResponse response = getClient().execute(get);
  checkResponseBody(method, response);

  assertEquals("Got no response code 200 in initial request", 200, response.
      getStatusLine().getStatusCode());

  Header head = response.getFirstHeader("Last-Modified");
  assertNotNull("We got no Last-Modified header", head);

  Date lastModified = DateUtils.parseDate(head.getValue());

  // If-Modified-Since tests
  get = getSelectMethod(method);
  get.addHeader("If-Modified-Since", DateUtils.formatDate(new Date()));

  response = getClient().execute(get);
  checkResponseBody(method, response);
  assertEquals("Expected 304 NotModified response with current date", 304,
      response.getStatusLine().getStatusCode());

  get = getSelectMethod(method);
  get.addHeader("If-Modified-Since", DateUtils.formatDate(new Date(
      lastModified.getTime() - 10000)));
  response = getClient().execute(get);
  checkResponseBody(method, response);
  assertEquals("Expected 200 OK response with If-Modified-Since in the past",
      200, response.getStatusLine().getStatusCode());

  // If-Unmodified-Since tests
  get = getSelectMethod(method);
  get.addHeader("If-Unmodified-Since", DateUtils.formatDate(new Date(
      lastModified.getTime() - 10000)));

  response = getClient().execute(get);
  checkResponseBody(method, response);
  assertEquals(
      "Expected 412 Precondition failed with If-Unmodified-Since in the past",
      412, response.getStatusLine().getStatusCode());

  get = getSelectMethod(method);
  get.addHeader("If-Unmodified-Since", DateUtils
          .formatDate(new Date()));
  response = getClient().execute(get);
  checkResponseBody(method, response);
  assertEquals(
      "Expected 200 OK response with If-Unmodified-Since and current date",
      200, response.getStatusLine().getStatusCode());
}
 

/**
 * Test if the response is gzip encoded
 *
 * @param response http response
 * @return true if response is gzip encoded
 */
public static boolean isGzipEncoded(HttpResponse response) {
    Header header = response.getFirstHeader("Content-Encoding");
    return header != null && "gzip".equals(header.getValue());
}
 

/**
 * Determine whether the given response indicates a GZIP response.
 * <p>The default implementation checks whether the HTTP "Content-Encoding"
 * header contains "gzip" (in any casing).
 * @param httpResponse the resulting HttpResponse to check
 * @return whether the given response indicates a GZIP response
 */
protected boolean isGzipResponse(HttpResponse httpResponse) {
	Header encodingHeader = httpResponse.getFirstHeader(HTTP_HEADER_CONTENT_ENCODING);
	return (encodingHeader != null && encodingHeader.getValue() != null &&
			encodingHeader.getValue().toLowerCase().contains(ENCODING_GZIP));
}