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| // Copyright (c) 2012 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. | |
| #ifndef NET_QUIC_CRYPTO_CRYPTO_FRAMER_H_ | |
| #define NET_QUIC_CRYPTO_CRYPTO_FRAMER_H_ | |
| #include <map> | |
| #include <vector> | |
| #include "base/basictypes.h" | |
| #include "base/logging.h" | |
| #include "base/memory/scoped_ptr.h" | |
| #include "net/quic/quic_protocol.h" | |
| #include "net/quic/crypto/crypto_protocol.h" | |
|
jar (doing other things)
2012/10/14 23:04:38
nit: alphabetize
Ryan Hamilton
2012/10/15 21:22:08
Done.
| |
| #include "base/string_piece.h" | |
| namespace net { | |
| class CryptoFramer; | |
| class QuicDataReader; | |
| class QuicData; | |
| class CryptoFramerVisitorInterface { | |
| public: | |
| virtual ~CryptoFramerVisitorInterface() {} | |
| // Called if an error is detected. | |
| virtual void OnError(CryptoFramer* framer) = 0; | |
| // Called when a complete handshake message has been parsed. | |
| virtual void OnHandshakeMessage(const CryptoHandshakeMessage& message) = 0; | |
| }; | |
| class CryptoFramer { | |
|
jar (doing other things)
2012/10/14 23:04:38
It might be helpful to have a class comment, indic
Ryan Hamilton
2012/10/15 21:22:08
Done.
| |
| public: | |
| CryptoFramer(); | |
| virtual ~CryptoFramer(); | |
| // Set callbacks to be called from the framer. A visitor must be set, or | |
| // else the framer will likely crash. It is acceptable for the visitor | |
| // to do nothing. If this is called multiple times, only the last visitor | |
| // will be used. | |
| void set_visitor(CryptoFramerVisitorInterface* visitor) { | |
| visitor_ = visitor; | |
|
jar (doing other things)
2012/10/14 23:04:38
Perhaps it is worth a comment that the ownership o
Ryan Hamilton
2012/10/15 21:22:08
Done.
Ryan Hamilton
2012/10/15 21:22:08
Done.
| |
| } | |
| QuicErrorCode error() const { | |
| return error_; | |
| } | |
| // Processes input data, which must be delievered in order. Returns | |
| // false if there was an error, and true otherwise. | |
| bool ProcessInput(base::StringPiece input); | |
| // Serializes |message| into |packet|. Returns fase if there was an | |
|
jar (doing other things)
2012/10/14 23:04:38
nit: fase-->false
Ryan Hamilton
2012/10/15 21:22:08
Done.
| |
| // error, and true otherwise. | |
| bool ConstructHandshakeMessage(const CryptoHandshakeMessage& message, | |
| QuicData** packet); | |
| private: | |
| // Clears per-message state. Does not clear the visitor. | |
| void Clear(); | |
| void set_error(QuicErrorCode error) { | |
| error_ = error; | |
| } | |
| enum CryptoFramerState { | |
| STATE_READING_TAG, | |
| STATE_READING_NUM_ENTRIES, | |
| STATE_READING_KEY_TAGS, | |
| STATE_READING_LENGTHS, | |
| STATE_READING_VALUES | |
| }; | |
| // Reader for parsing data. | |
| scoped_ptr<QuicDataReader> reader_; | |
| // Visitor to send invoke when messages are parsed. | |
| CryptoFramerVisitorInterface* visitor_; | |
| // Last error. | |
| QuicErrorCode error_; | |
| // Remaining unparsed data. | |
| std::string buffer_; | |
| // Current state of the parsing. | |
| CryptoFramerState state_; | |
| // Tag of the message currently being parsed. | |
| CryptoTag message_tag_; | |
| // Number of entires in the message currently being parsed. | |
| uint16 num_entries_; | |
| // Vector of tags in the message currently being parsed. | |
| std::vector<CryptoTag> tags_; | |
| // Length of the data associated with each tag in the message currently | |
| // being parsed. | |
| std::map<CryptoTag, size_t> tag_length_map_; | |
| // Length of the data associated with each tag in the message currently | |
|
jar (doing other things)
2012/10/14 23:04:38
This says "Length" just like line 94, but it looks
Ryan Hamilton
2012/10/15 21:22:08
Will be fixed when the changes from cl/35411506 ar
| |
| // being parsed. | |
| CryptoTagValueMap tag_value_map_; | |
| // Cumulative length of all values in the message currently being parsed. | |
| size_t values_len_; | |
| }; | |
| } // namespace net | |
| #endif // NET_QUIC_CRYPTO_CRYPTO_FRAMER_H_ | |
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