WebSocket: Remove obsolete experiments related files

net/websockets/websocket_handshake.cc

Index: net/websockets/websocket_handshake.cc
diff --git a/net/websockets/websocket_handshake.cc b/net/websockets/websocket_handshake.cc
deleted file mode 100644
index 789c6dfbd7d33bf15cc27a3250b36060a3a8bfd9..0000000000000000000000000000000000000000
--- a/net/websockets/websocket_handshake.cc
+++ /dev/null
@@ -1,303 +0,0 @@
-// 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.
-
-#include "net/websockets/websocket_handshake.h"
-
-#include <algorithm>
-#include <vector>
-
-#include "base/logging.h"
-#include "base/md5.h"
-#include "base/memory/ref_counted.h"
-#include "base/rand_util.h"
-#include "base/string_number_conversions.h"
-#include "base/string_util.h"
-#include "base/stringprintf.h"
-#include "net/http/http_response_headers.h"
-#include "net/http/http_util.h"
-
-namespace net {
-
-const int WebSocketHandshake::kWebSocketPort = 80;
-const int WebSocketHandshake::kSecureWebSocketPort = 443;
-
-WebSocketHandshake::WebSocketHandshake(
-    const GURL& url,
-    const std::string& origin,
-    const std::string& location,
-    const std::string& protocol)
-    : url_(url),
-      origin_(origin),
-      location_(location),
-      protocol_(protocol),
-      mode_(MODE_INCOMPLETE) {
-}
-
-WebSocketHandshake::~WebSocketHandshake() {
-}
-
-bool WebSocketHandshake::is_secure() const {
-  return url_.SchemeIs("wss");
-}
-
-std::string WebSocketHandshake::CreateClientHandshakeMessage() {
-  if (!parameter_.get()) {
-    parameter_.reset(new Parameter);
-    parameter_->GenerateKeys();
-  }
-  std::string msg;
-
-  // WebSocket protocol 4.1 Opening handshake.
-
-  msg = "GET ";
-  msg += GetResourceName();
-  msg += " HTTP/1.1\r\n";
-
-  std::vector<std::string> fields;
-
-  fields.push_back("Upgrade: WebSocket");
-  fields.push_back("Connection: Upgrade");
-
-  fields.push_back("Host: " + GetHostFieldValue());
-
-  fields.push_back("Origin: " + GetOriginFieldValue());
-
-  if (!protocol_.empty())
-    fields.push_back("Sec-WebSocket-Protocol: " + protocol_);
-
-  // TODO(ukai): Add cookie if necessary.
-
-  fields.push_back("Sec-WebSocket-Key1: " + parameter_->GetSecWebSocketKey1());
-  fields.push_back("Sec-WebSocket-Key2: " + parameter_->GetSecWebSocketKey2());
-
-  std::random_shuffle(fields.begin(), fields.end(), base::RandGenerator);
-
-  for (size_t i = 0; i < fields.size(); i++) {
-    msg += fields[i] + "\r\n";
-  }
-  msg += "\r\n";
-
-  msg.append(parameter_->GetKey3());
-  return msg;
-}
-
-int WebSocketHandshake::ReadServerHandshake(const char* data, size_t len) {
-  mode_ = MODE_INCOMPLETE;
-  int eoh = HttpUtil::LocateEndOfHeaders(data, len);
-  if (eoh < 0)
-    return -1;
-
-  scoped_refptr<HttpResponseHeaders> headers(
-      new HttpResponseHeaders(HttpUtil::AssembleRawHeaders(data, eoh)));
-
-  if (headers->response_code() != 101) {
-    mode_ = MODE_FAILED;
-    DVLOG(1) << "Bad response code: " << headers->response_code();
-    return eoh;
-  }
-  mode_ = MODE_NORMAL;
-  if (!ProcessHeaders(*headers) || !CheckResponseHeaders()) {
-    DVLOG(1) << "Process Headers failed: " << std::string(data, eoh);
-    mode_ = MODE_FAILED;
-    return eoh;
-  }
-  if (len < static_cast<size_t>(eoh + Parameter::kExpectedResponseSize)) {
-    mode_ = MODE_INCOMPLETE;
-    return -1;
-  }
-  uint8 expected[Parameter::kExpectedResponseSize];
-  parameter_->GetExpectedResponse(expected);
-  if (memcmp(&data[eoh], expected, Parameter::kExpectedResponseSize)) {
-    mode_ = MODE_FAILED;
-    return eoh + Parameter::kExpectedResponseSize;
-  }
-  mode_ = MODE_CONNECTED;
-  return eoh + Parameter::kExpectedResponseSize;
-}
-
-std::string WebSocketHandshake::GetResourceName() const {
-  std::string resource_name = url_.path();
-  if (url_.has_query()) {
-    resource_name += "?";
-    resource_name += url_.query();
-  }
-  return resource_name;
-}
-
-std::string WebSocketHandshake::GetHostFieldValue() const {
-  // url_.host() is expected to be encoded in punnycode here.
-  std::string host = StringToLowerASCII(url_.host());
-  if (url_.has_port()) {
-    bool secure = is_secure();
-    int port = url_.EffectiveIntPort();
-    if ((!secure &&
-         port != kWebSocketPort && port != url_parse::PORT_UNSPECIFIED) ||
-        (secure &&
-         port != kSecureWebSocketPort && port != url_parse::PORT_UNSPECIFIED)) {
-      host += ":";
-      host += base::IntToString(port);
-    }
-  }
-  return host;
-}
-
-std::string WebSocketHandshake::GetOriginFieldValue() const {
-  // It's OK to lowercase the origin as the Origin header does not contain
-  // the path or query portions, as per
-  // http://tools.ietf.org/html/draft-abarth-origin-00.
-  //
-  // TODO(satorux): Should we trim the port portion here if it's 80 for
-  // http:// or 443 for https:// ? Or can we assume it's done by the
-  // client of the library?
-  return StringToLowerASCII(origin_);
-}
-
-/* static */
-bool WebSocketHandshake::GetSingleHeader(const HttpResponseHeaders& headers,
-                                         const std::string& name,
-                                         std::string* value) {
-  std::string first_value;
-  void* iter = NULL;
-  if (!headers.EnumerateHeader(&iter, name, &first_value))
-    return false;
-
-  // Checks no more |name| found in |headers|.
-  // Second call of EnumerateHeader() must return false.
-  std::string second_value;
-  if (headers.EnumerateHeader(&iter, name, &second_value))
-    return false;
-  *value = first_value;
-  return true;
-}
-
-bool WebSocketHandshake::ProcessHeaders(const HttpResponseHeaders& headers) {
-  std::string value;
-  if (!GetSingleHeader(headers, "upgrade", &value) ||
-      value != "WebSocket")
-    return false;
-
-  if (!GetSingleHeader(headers, "connection", &value) ||
-      !LowerCaseEqualsASCII(value, "upgrade"))
-    return false;
-
-  if (!GetSingleHeader(headers, "sec-websocket-origin", &ws_origin_))
-    return false;
-
-  if (!GetSingleHeader(headers, "sec-websocket-location", &ws_location_))
-    return false;
-
-  // If |protocol_| is not specified by client, we don't care if there's
-  // protocol field or not as specified in the spec.
-  if (!protocol_.empty()
-      && !GetSingleHeader(headers, "sec-websocket-protocol", &ws_protocol_))
-    return false;
-  return true;
-}
-
-bool WebSocketHandshake::CheckResponseHeaders() const {
-  DCHECK(mode_ == MODE_NORMAL);
-  if (!LowerCaseEqualsASCII(origin_, ws_origin_.c_str()))
-    return false;
-  if (location_ != ws_location_)
-    return false;
-  if (!protocol_.empty() && protocol_ != ws_protocol_)
-    return false;
-  return true;
-}
-
-namespace {
-
-// unsigned int version of base::RandInt().
-// we can't use base::RandInt(), because max would be negative if it is
-// represented as int, so DCHECK(min <= max) fails.
-uint32 RandUint32(uint32 min, uint32 max) {
-  DCHECK(min <= max);
-
-  uint64 range = static_cast<int64>(max) - min + 1;
-  uint64 number = base::RandGenerator(range);
-  uint32 result = min + static_cast<uint32>(number);
-  DCHECK(result >= min && result <= max);
-  return result;
-}
-
-}
-
-uint32 (*WebSocketHandshake::Parameter::rand_)(uint32 min, uint32 max) =
-    RandUint32;
-uint8 randomCharacterInSecWebSocketKey[0x2F - 0x20 + 0x7E - 0x39];
-
-WebSocketHandshake::Parameter::Parameter()
-    : number_1_(0), number_2_(0) {
-  if (randomCharacterInSecWebSocketKey[0] == '\0') {
-    int i = 0;
-    for (int ch = 0x21; ch <= 0x2F; ch++, i++)
-      randomCharacterInSecWebSocketKey[i] = ch;
-    for (int ch = 0x3A; ch <= 0x7E; ch++, i++)
-      randomCharacterInSecWebSocketKey[i] = ch;
-  }
-}
-
-WebSocketHandshake::Parameter::~Parameter() {}
-
-void WebSocketHandshake::Parameter::GenerateKeys() {
-  GenerateSecWebSocketKey(&number_1_, &key_1_);
-  GenerateSecWebSocketKey(&number_2_, &key_2_);
-  GenerateKey3();
-}
-
-static void SetChallengeNumber(uint8* buf, uint32 number) {
-  uint8* p = buf + 3;
-  for (int i = 0; i < 4; i++) {
-    *p = (uint8)(number & 0xFF);
-    --p;
-    number >>= 8;
-  }
-}
-
-void WebSocketHandshake::Parameter::GetExpectedResponse(uint8 *expected) const {
-  uint8 challenge[kExpectedResponseSize];
-  SetChallengeNumber(&challenge[0], number_1_);
-  SetChallengeNumber(&challenge[4], number_2_);
-  memcpy(&challenge[8], key_3_.data(), kKey3Size);
-  base::MD5Digest digest;
-  base::MD5Sum(challenge, kExpectedResponseSize, &digest);
-  memcpy(expected, digest.a, kExpectedResponseSize);
-}
-
-/* static */
-void WebSocketHandshake::Parameter::SetRandomNumberGenerator(
-    uint32 (*rand)(uint32 min, uint32 max)) {
-  rand_ = rand;
-}
-
-void WebSocketHandshake::Parameter::GenerateSecWebSocketKey(
-    uint32* number, std::string* key) {
-  uint32 space = rand_(1, 12);
-  uint32 max = 4294967295U / space;
-  *number = rand_(0, max);
-  uint32 product = *number * space;
-
-  std::string s = base::StringPrintf("%u", product);
-  int n = rand_(1, 12);
-  for (int i = 0; i < n; i++) {
-    int pos = rand_(0, s.length());
-    int chpos = rand_(0, sizeof(randomCharacterInSecWebSocketKey) - 1);
-    s = s.substr(0, pos).append(1, randomCharacterInSecWebSocketKey[chpos]) +
-        s.substr(pos);
-  }
-  for (uint32 i = 0; i < space; i++) {
-    int pos = rand_(1, s.length() - 1);
-    s = s.substr(0, pos) + " " + s.substr(pos);
-  }
-  *key = s;
-}
-
-void WebSocketHandshake::Parameter::GenerateKey3() {
-  key_3_.clear();
-  for (int i = 0; i < 8; i++) {
-    key_3_.append(1, rand_(0, 255));
-  }
-}
-
-}  // namespace net