henrike@webrtc.org | f7795df | 2014-05-13 18:00:26 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2004 The WebRTC Project Authors. All rights reserved. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license |
| 5 | * that can be found in the LICENSE file in the root of the source |
| 6 | * tree. An additional intellectual property rights grant can be found |
| 7 | * in the file PATENTS. All contributing project authors may |
| 8 | * be found in the AUTHORS file in the root of the source tree. |
| 9 | */ |
| 10 | |
| 11 | #ifndef WEBRTC_BASE_MULTIPART_H__ |
| 12 | #define WEBRTC_BASE_MULTIPART_H__ |
| 13 | |
| 14 | #include <string> |
| 15 | #include <vector> |
| 16 | |
| 17 | #include "webrtc/base/sigslot.h" |
| 18 | #include "webrtc/base/stream.h" |
| 19 | |
| 20 | namespace rtc { |
| 21 | |
| 22 | /////////////////////////////////////////////////////////////////////////////// |
| 23 | // MultipartStream - Implements an RFC2046 multipart stream by concatenating |
| 24 | // the supplied parts together, and adding the correct boundaries. |
| 25 | /////////////////////////////////////////////////////////////////////////////// |
| 26 | |
| 27 | class MultipartStream : public StreamInterface, public sigslot::has_slots<> { |
| 28 | public: |
| 29 | MultipartStream(const std::string& type, const std::string& boundary); |
| 30 | virtual ~MultipartStream(); |
| 31 | |
| 32 | void GetContentType(std::string* content_type); |
| 33 | |
| 34 | // Note: If content_disposition and/or content_type are the empty string, |
| 35 | // they will be omitted. |
| 36 | bool AddPart(StreamInterface* data_stream, |
| 37 | const std::string& content_disposition, |
| 38 | const std::string& content_type); |
| 39 | bool AddPart(const std::string& data, |
| 40 | const std::string& content_disposition, |
| 41 | const std::string& content_type); |
| 42 | void EndParts(); |
| 43 | |
| 44 | // Calculates the size of a part before actually adding the part. |
| 45 | size_t GetPartSize(const std::string& data, |
| 46 | const std::string& content_disposition, |
| 47 | const std::string& content_type) const; |
| 48 | size_t GetEndPartSize() const; |
| 49 | |
| 50 | // StreamInterface |
| 51 | virtual StreamState GetState() const; |
| 52 | virtual StreamResult Read(void* buffer, size_t buffer_len, |
| 53 | size_t* read, int* error); |
| 54 | virtual StreamResult Write(const void* data, size_t data_len, |
| 55 | size_t* written, int* error); |
| 56 | virtual void Close(); |
| 57 | virtual bool SetPosition(size_t position); |
| 58 | virtual bool GetPosition(size_t* position) const; |
| 59 | virtual bool GetSize(size_t* size) const; |
| 60 | virtual bool GetAvailable(size_t* size) const; |
| 61 | |
| 62 | private: |
| 63 | typedef std::vector<StreamInterface*> PartList; |
| 64 | |
| 65 | // StreamInterface Slots |
| 66 | void OnEvent(StreamInterface* stream, int events, int error); |
| 67 | |
| 68 | std::string type_, boundary_; |
| 69 | PartList parts_; |
| 70 | bool adding_; |
| 71 | size_t current_; // The index into parts_ of the current read position. |
| 72 | size_t position_; // The current read position in bytes. |
| 73 | |
| 74 | DISALLOW_COPY_AND_ASSIGN(MultipartStream); |
| 75 | }; |
| 76 | |
| 77 | } // namespace rtc |
| 78 | |
| 79 | #endif // WEBRTC_BASE_MULTIPART_H__ |