/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.chemistry.opencmis.client.bindings.spi.http;
import static org.apache.chemistry.opencmis.commons.impl.CollectionsHelper.isNotEmpty;
import java.io.BufferedOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.math.BigInteger;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.List;
import java.util.Map;
import java.util.zip.GZIPOutputStream;
import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLSocketFactory;
import org.apache.chemistry.opencmis.client.bindings.impl.ClientVersion;
import org.apache.chemistry.opencmis.client.bindings.impl.CmisBindingsHelper;
import org.apache.chemistry.opencmis.client.bindings.spi.BindingSession;
import org.apache.chemistry.opencmis.commons.SessionParameter;
import org.apache.chemistry.opencmis.commons.exceptions.CmisConnectionException;
import org.apache.chemistry.opencmis.commons.impl.UrlBuilder;
import org.apache.chemistry.opencmis.commons.spi.AuthenticationProvider;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class DefaultHttpInvoker implements HttpInvoker {
private static final Logger LOG = LoggerFactory.getLogger(DefaultHttpInvoker.class);
private static final int BUFFER_SIZE = 2 * 1024 * 1024;
public DefaultHttpInvoker() {
}
@Override
public Response invokeGET(UrlBuilder url, BindingSession session) {
return invoke(url, "GET", null, null, null, session, null, null);
}
@Override
public Response invokeGET(UrlBuilder url, BindingSession session, BigInteger offset, BigInteger length) {
return invoke(url, "GET", null, null, null, session, offset, length);
}
@Override
public Response invokePOST(UrlBuilder url, String contentType, Output writer, BindingSession session) {
return invoke(url, "POST", contentType, null, writer, session, null, null);
}
@Override
public Response invokePUT(UrlBuilder url, String contentType, Map<String, String> headers, Output writer,
BindingSession session) {
return invoke(url, "PUT", contentType, headers, writer, session, null, null);
}
@Override
public Response invokeDELETE(UrlBuilder url, BindingSession session) {
return invoke(url, "DELETE", null, null, null, session, null, null);
}
private Response invoke(UrlBuilder url, String method, String contentType, Map<String, String> headers,
Output writer, BindingSession session, BigInteger offset, BigInteger length) {
int respCode = -1;
try {
// log before connect
if (LOG.isDebugEnabled()) {
LOG.debug("Session {}: {} {}", session.getSessionId(), method, url);
}
// connect
HttpURLConnection conn = (HttpURLConnection) (new URL(url.toString())).openConnection();
conn.setRequestMethod(method);
conn.setDoInput(true);
conn.setDoOutput(writer != null);
conn.setAllowUserInteraction(false);
conn.setUseCaches(false);
conn.setRequestProperty("User-Agent",
(String) session.get(SessionParameter.USER_AGENT, ClientVersion.OPENCMIS_USER_AGENT));
// timeouts
int connectTimeout = session.get(SessionParameter.CONNECT_TIMEOUT, -1);
if (connectTimeout >= 0) {
conn.setConnectTimeout(connectTimeout);
}
int readTimeout = session.get(SessionParameter.READ_TIMEOUT, -1);
if (readTimeout >= 0) {
conn.setReadTimeout(readTimeout);
}
// set content type
if (contentType != null) {
conn.setRequestProperty("Content-Type", contentType);
}
// set other headers
if (headers != null) {
for (Map.Entry<String, String> header : headers.entrySet()) {
conn.addRequestProperty(header.getKey(), header.getValue());
}
}
// authenticate
AuthenticationProvider authProvider = CmisBindingsHelper.getAuthenticationProvider(session);
if (authProvider != null) {
Map<String, List<String>> httpHeaders = authProvider.getHTTPHeaders(url.toString());
if (httpHeaders != null) {
for (Map.Entry<String, List<String>> header : httpHeaders.entrySet()) {
if (header.getKey() != null && isNotEmpty(header.getValue())) {
String key = header.getKey();
if (key.equalsIgnoreCase("user-agent")) {
conn.setRequestProperty("User-Agent", header.getValue().get(0));
} else {
for (String value : header.getValue()) {
if (value != null) {
conn.addRequestProperty(key, value);
}
}
}
}
}
}
if (conn instanceof HttpsURLConnection) {
SSLSocketFactory sf = authProvider.getSSLSocketFactory();
if (sf != null) {
((HttpsURLConnection) conn).setSSLSocketFactory(sf);
}
HostnameVerifier hv = authProvider.getHostnameVerifier();
if (hv != null) {
((HttpsURLConnection) conn).setHostnameVerifier(hv);
}
}
}
// range
if (offset != null || length != null) {
StringBuilder sb = new StringBuilder("bytes=");
if ((offset == null) || (offset.signum() == -1)) {
offset = BigInteger.ZERO;
}
sb.append(offset.toString());
sb.append('-');
if (length != null && length.signum() == 1) {
sb.append(offset.add(length.subtract(BigInteger.ONE)).toString());
}
conn.setRequestProperty("Range", sb.toString());
}
// compression
Object compression = session.get(SessionParameter.COMPRESSION);
if (compression != null && Boolean.parseBoolean(compression.toString())) {
conn.setRequestProperty("Accept-Encoding", "gzip,deflate");
}
// locale
if (session.get(CmisBindingsHelper.ACCEPT_LANGUAGE) instanceof String) {
conn.setRequestProperty("Accept-Language", session.get(CmisBindingsHelper.ACCEPT_LANGUAGE).toString());
}
// send data
if (writer != null) {
// Not supported with All server.
// conn.setChunkedStreamingMode((64 * 1024) - 1);
OutputStream connOut = null;
Object clientCompression = session.get(SessionParameter.CLIENT_COMPRESSION);
if ((clientCompression != null) && Boolean.parseBoolean(clientCompression.toString())) {
conn.setRequestProperty("Content-Encoding", "gzip");
connOut = new GZIPOutputStream(conn.getOutputStream(), 4096);
} else {
connOut = conn.getOutputStream();
}
OutputStream out = new BufferedOutputStream(connOut, BUFFER_SIZE);
writer.write(out);
out.close();
}
// connect
conn.connect();
// get stream, if present
respCode = conn.getResponseCode();
InputStream inputStream = null;
if (respCode == 200 || respCode == 201 || respCode == 203 || respCode == 206) {
inputStream = conn.getInputStream();
}
// log after connect
if (LOG.isTraceEnabled()) {
LOG.trace("Session {}: {} {} > Headers: {}", session.getSessionId(), method, url,
conn.getHeaderFields().toString());
}
// forward response HTTP headers
if (authProvider != null) {
authProvider.putResponseHeaders(url.toString(), respCode, conn.getHeaderFields());
}
// get the response
return new Response(respCode, conn.getResponseMessage(), conn.getHeaderFields(), inputStream,
conn.getErrorStream());
} catch (Exception e) {
throw new CmisConnectionException(url.toString(), respCode, e);
}
}
}