blob: ef7fe0366575c696f039008d4989246f6b5b43a2 [file] [log] [blame]
// Copyright 2013 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 <string>
#include "base/strings/string_piece.h"
#include "net/base/net_export.h"
#include "net/websockets/websocket_extension.h"
namespace net {
class NET_EXPORT_PRIVATE WebSocketExtensionParser {
// Parses the given string as a WebSocket extension header value.
// This parser assumes some preprocesses are made.
// - The parser parses single extension at a time. This means that
// the parser parses |extension| in RFC6455 9.1, not |extension-list|.
// - There is no newline characters in the input. LWS-concatenation must
// have already been done.
void Parse(const char* data, size_t size);
void Parse(const std::string& data) {
Parse(, data.size());
bool has_error() const { return has_error_; }
const WebSocketExtension& extension() const { return extension_; }
void Consume(char c);
void ConsumeExtension(WebSocketExtension* extension);
void ConsumeExtensionParameter(WebSocketExtension::Parameter* parameter);
void ConsumeToken(base::StringPiece* token);
void ConsumeQuotedToken(std::string* token);
void ConsumeSpaces();
bool Lookahead(char c);
bool ConsumeIfMatch(char c);
size_t UnconsumedBytes() const { return end_ - current_; }
static bool IsControl(char c);
static bool IsSeparator(char c);
const char* current_;
const char* end_;
bool has_error_;
WebSocketExtension extension_;
} // namespace net