drop old backends

plugins/org.chromium.sdk.wipbackend.wk118685/src/org/chromium/sdk/internal/wip/WipBackendImpl.java

-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package org.chromium.sdk.internal.wip;
-
-import java.io.IOException;
-import java.io.OutputStream;
-import java.net.InetSocketAddress;
-import java.net.URI;
-import java.util.AbstractList;
-import java.util.List;
-
-import org.chromium.sdk.ConnectionLogger;
-import org.chromium.sdk.TabDebugEventListener;
-import org.chromium.sdk.internal.protocolparser.JsonProtocolParseException;
-import org.chromium.sdk.internal.transport.SocketWrapper;
-import org.chromium.sdk.internal.transport.SocketWrapper.LoggableInputStream;
-import org.chromium.sdk.internal.transport.SocketWrapper.LoggableOutputStream;
-import org.chromium.sdk.internal.websocket.HandshakeUtil;
-import org.chromium.sdk.internal.websocket.Hybi00WsConnection;
-import org.chromium.sdk.internal.websocket.Hybi17WsConnection;
-import org.chromium.sdk.internal.websocket.WsConnection;
-import org.chromium.sdk.internal.wip.protocol.WipParserAccess;
-import org.chromium.sdk.internal.wip.protocol.input.WipTabList;
-import org.chromium.sdk.internal.wip.protocol.input.WipTabList.TabDescription;
-import org.chromium.sdk.wip.WipBrowser.WipTabConnector;
-import org.chromium.sdk.wip.WipBrowserFactory.LoggerFactory;
-import org.chromium.sdk.wip.WipBrowserTab;
-import org.json.simple.parser.JSONParser;
-import org.json.simple.parser.ParseException;
-
-public class WipBackendImpl extends WipBackendBase {
-  private static final int DEFAULT_CONNECTION_TIMEOUT_MS = 1000;
-
-  private static final boolean USE_OLD_WEBSOCKET = false;
-
-  private static final String ID = "WK@118685";
-  private static final String DESCRIPTION =
-      "Google Chrome/Chromium: 21.0.1180.*\n" +
-      "WebKit revision: 118685\n";
-
-  public WipBackendImpl() {
-    super(ID, DESCRIPTION);
-  }
-
-  @Override
-  public List<? extends WipTabConnector> getTabs(final WipBrowserImpl browserImpl)
-      throws IOException {
-    InetSocketAddress socketAddress = browserImpl.getSocketAddress();
-
-    String content = readHttpResponseContent(socketAddress, "/json",
-        browserImpl.getConnectionLoggerFactory());
-
-    final List<WipTabList.TabDescription> list = parseJsonReponse(content);
-
-    return new AbstractList<WipTabConnector>() {
-      @Override
-      public WipTabConnector get(int index) {
-        return new TabConnectorImpl(list.get(index), browserImpl);
-      }
-
-      @Override
-      public int size() {
-        return list.size();
-      }
-    };
-  }
-
-  private class TabConnectorImpl implements WipTabConnector {
-    private final TabDescription description;
-    private final WipBrowserImpl browserImpl;
-
-    private TabConnectorImpl(TabDescription description, WipBrowserImpl browserImpl) {
-      this.description = description;
-      this.browserImpl = browserImpl;
-    }
-
-    @Override
-    public boolean isAlreadyAttached() {
-      return description.webSocketDebuggerUrl() == null;
-    }
-
-    @Override
-    public String getUrl() {
-      return description.url();
-    }
-
-    @Override
-    public String getTitle() {
-      return description.title();
-    }
-
-    @Override
-    public WipBrowserTab attach(TabDebugEventListener listener) throws IOException {
-      LoggerFactory connectionLoggerFactory = browserImpl.getConnectionLoggerFactory();
-      ConnectionLogger connectionLogger;
-      if (connectionLoggerFactory == null) {
-        connectionLogger = null;
-      } else {
-        connectionLogger = connectionLoggerFactory.newTabConnectionLogger();
-      }
-      String webSocketDebuggerUrl = description.webSocketDebuggerUrl();
-
-      if (webSocketDebuggerUrl == null) {
-        throw new IOException("Tab is already attached");
-      }
-
-      URI uri = URI.create(webSocketDebuggerUrl);
-      WsConnection socket;
-      if (USE_OLD_WEBSOCKET) {
-        socket = Hybi00WsConnection.connect(browserImpl.getSocketAddress(),
-            DEFAULT_CONNECTION_TIMEOUT_MS, uri.getPath(), "empty origin", connectionLogger);
-      } else {
-        socket = Hybi17WsConnection.connect(browserImpl.getSocketAddress(),
-            DEFAULT_CONNECTION_TIMEOUT_MS, uri.getPath(),
-            Hybi17WsConnection.MaskStrategy.TRANSPARENT_MASK, connectionLogger);
-      }
-
-
-      return new WipTabImpl(socket, browserImpl, listener, description.url());
-    }
-  }
-
-  private String readHttpResponseContent(InetSocketAddress socketAddress, String resource,
-      LoggerFactory loggerFactory) throws IOException {
-    ConnectionLogger browserConnectionLogger = loggerFactory.newBrowserConnectionLogger();
-    final SocketWrapper socketWrapper = new SocketWrapper(
-        socketAddress, DEFAULT_CONNECTION_TIMEOUT_MS, browserConnectionLogger,
-        HandshakeUtil.ASCII_CHARSET);
-    try {
-      if (browserConnectionLogger != null) {
-        browserConnectionLogger.start();
-        browserConnectionLogger.setConnectionCloser(new ConnectionLogger.ConnectionCloser() {
-          @Override
-          public void closeConnection() {
-            socketWrapper.getShutdownRelay().sendSignal(null, new Exception("UI close request"));
-          }
-        });
-      }
-      LoggableOutputStream output = socketWrapper.getLoggableOutput();
-      writeHttpLine(output, "GET " + resource + " HTTP/1.1");
-      writeHttpLine(output, "User-Agent: ChromeDevTools for Java SDK");
-      writeHttpLine(output, "Host: " + socketAddress.getHostName() + ":" +
-          socketAddress.getPort());
-      writeHttpLine(output, "");
-      output.getOutputStream().flush();
-
-      LoggableInputStream input = socketWrapper.getLoggableInput();
-
-      HandshakeUtil.HttpResponse httpResponse =
-          HandshakeUtil.readHttpResponse(HandshakeUtil.createLineReader(input.getInputStream()));
-
-      if (httpResponse.getCode() != 200) {
-        throw new IOException("Unrecognized respose: " + httpResponse.getCode() + " " +
-            httpResponse.getReasonPhrase());
-      }
-
-      String lengthStr = httpResponse.getFields().get("content-length");
-      if (lengthStr == null) {
-        throw new IOException("Unrecognizable respose: no content-length");
-      }
-      int length;
-      try {
-        length = Integer.parseInt(lengthStr.trim());
-      } catch (NumberFormatException e) {
-        throw new IOException("Unrecognizable respose: incorrect content-length");
-      }
-      byte[] responseBytes = new byte[length];
-      {
-        int readSoFar = 0;
-        while (readSoFar < length) {
-          int res = input.getInputStream().read(responseBytes, readSoFar, length - readSoFar);
-          if (res == -1) {
-            throw new IOException("Unexpected EOS");
-          }
-          readSoFar += res;
-        }
-      }
-      return new String(responseBytes, HandshakeUtil.UTF_8_CHARSET);
-    } finally {
-      if (browserConnectionLogger != null) {
-        browserConnectionLogger.handleEos();
-      }
-      socketWrapper.getShutdownRelay().sendSignal(null, null);
-    }
-  }
-
-  private static void writeHttpLine(LoggableOutputStream output, String line) throws IOException {
-    OutputStream stream = output.getOutputStream();
-    stream.write(line.getBytes(HandshakeUtil.ASCII_CHARSET));
-    stream.write(0xD);
-    stream.write(0xA);
-  }
-
-  private static List<WipTabList.TabDescription> parseJsonReponse(String content)
-      throws IOException {
-    Object jsonValue;
-    try {
-      jsonValue = new JSONParser().parse(content);
-    } catch (ParseException e) {
-      throw new IOException("Failed to parse a JSON tab list response", e);
-    }
-
-    try {
-      WipTabList tabList = WipParserAccess.get().parseTabList(jsonValue);
-      return tabList.asTabList();
-    } catch (JsonProtocolParseException e) {
-      throw new IOException(
-          "Failed to parse tab list response (on protocol level)", e);
-    }
-  }
-}