drop old backends

plugins/org.chromium.sdk.wipbackend.wk118685/src/org/chromium/sdk/internal/websocket/HandshakeUtil.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.websocket;
-
-import java.io.ByteArrayOutputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.net.InetSocketAddress;
-import java.nio.charset.Charset;
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.Map;
-
-/**
- * Methods, classes and constants used in all WebSocket handshake procedures.
- */
-public class HandshakeUtil {
-  public static final Charset UTF_8_CHARSET = Charset.forName("UTF-8");
-  public static final Charset ASCII_CHARSET = Charset.forName("ASCII");
-
-  static ArrayList<String> createHttpFields(InetSocketAddress endpoint) {
-    ArrayList<String> fields = new ArrayList<String>();
-    fields.add("Connection: Upgrade");
-    return fields;
-  }
-
-  static void checkOriginString(String origin) {
-    for (int i = 0; i < origin.length(); i++) {
-      char ch = origin.charAt(i);
-      if (ch >= 'A' && ch <= 'Z') {
-        throw new IllegalArgumentException();
-      }
-    }
-  }
-
-  public interface HttpResponse {
-    int getCode();
-    Map<String, String> getFields();
-    String getReasonPhrase();
-  }
-
-  public static HttpResponse readHttpResponse(LineReader input) throws IOException {
-    final int code;
-    final String reasonPhrase;
-    // First line.
-    {
-      byte[] firstLine = input.readUpTo0x0D0A();
-      if (firstLine.length < 7 - 2) {
-        throw new IOException("Malformed response");
-      }
-      int space1Pos = byteIndexOf((byte)' ', firstLine, 0);
-      if (space1Pos == -1) {
-        throw new IOException("Malformed response");
-      }
-      int space2Pos = byteIndexOf((byte)' ', firstLine, space1Pos + 1);
-      if (space2Pos == -1) {
-        throw new IOException("Malformed response");
-      }
-      if (space2Pos - space1Pos != 4) {
-        throw new IOException("Malformed response");
-      }
-      int codeTemp = 0;
-      for (int i = space1Pos + 1; i < space2Pos; i++) {
-        codeTemp = codeTemp * 10 + firstLine[i] - (byte)'0';
-      }
-      code = codeTemp;
-      int reasonPhraseStart = space2Pos + 1;
-      reasonPhrase = new String(firstLine, reasonPhraseStart, firstLine.length - space2Pos - 1,
-          ASCII_CHARSET);
-    }
-
-    // Fields.
-    final Map<String, String> responseFields;
-    {
-      responseFields = new HashMap<String, String>();
-      while (true) {
-        byte[] line = input.readUpTo0x0D0A();
-        if (line.length == 0) {
-          break;
-        }
-        String lineStr = new String(line, UTF_8_CHARSET);
-        int colonPos = lineStr.indexOf(':');
-        if (colonPos == -1) {
-          throw new IOException("Malformed response field");
-        }
-        if (colonPos == 0) {
-          throw new IOException("Malformed response field: empty key");
-        }
-        String key = lineStr.substring(0, colonPos).toLowerCase();
-        if (lineStr.length() > colonPos + 1 && lineStr.charAt(colonPos + 1) == ' ') {
-          colonPos++;
-        }
-        String value = lineStr.substring(colonPos + 1);
-        Object conflict = responseFields.put(key, value);
-        if (conflict != null) {
-          throw new IOException("Malformed response field: duplicated field: " + key);
-        }
-      }
-    }
-    return new HttpResponse() {
-      @Override public int getCode() {
-        return code;
-      }
-      @Override public String getReasonPhrase() {
-        return reasonPhrase;
-      }
-      @Override public Map<String, String> getFields() {
-        return responseFields;
-      }
-    };
-  }
-
-  public static abstract class LineReader {
-    abstract byte[] readUpTo0x0D0A() throws IOException;
-  }
-
-  public static LineReader createLineReader(final InputStream input) {
-    return new LineReader() {
-      @Override
-      byte[] readUpTo0x0D0A() throws IOException {
-        ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
-        while (true) {
-          // TODO(peter.rybin): this is slow (for connection logger implementation).
-          int i = input.read();
-          if (i == -1) {
-            throw new IOException("End of stream");
-          }
-          byte b = (byte) i;
-          if (b == 0x0D) {
-            break;
-          }
-          if (b == 0x0A) {
-            throw new IOException("Malformed end of line");
-          }
-          outputStream.write(b);
-        }
-        {
-          int i = input.read();
-          if (i == -1) {
-            throw new IOException("End of stream");
-          }
-          byte b = (byte) i;
-          if (b != 0x0A) {
-            throw new IOException("Malformed end of line");
-          }
-        }
-        return outputStream.toByteArray();
-      }
-    };
-  }
-
-  private static int byteIndexOf(byte b, byte[] array, int start) {
-    int i = start;
-    while (i < array.length) {
-      if (array[i] == b) {
-        return i;
-      }
-      i++;
-    }
-    return -1;
-  }
-}