Mercurial > hg > orthanc

comparison Core/HttpServer/HttpStreamTranscoder.h @ 1525:f9b0169eb6bb

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
testing
author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 11 Aug 2015 17:50:38 +0200
parents
children 096a8af528c9
comparison
equal deleted inserted replaced
1524:4a0c2eedceb6 1525:f9b0169eb6bb
1 /**
2 * Orthanc - A Lightweight, RESTful DICOM Store
3 * Copyright (C) 2012-2015 Sebastien Jodogne, Medical Physics
4 * Department, University Hospital of Liege, Belgium
5 *
6 * This program is free software: you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License as
8 * published by the Free Software Foundation, either version 3 of the
9 * License, or (at your option) any later version.
10 *
11 * In addition, as a special exception, the copyright holders of this
12 * program give permission to link the code of its release with the
13 * OpenSSL project's "OpenSSL" library (or with modified versions of it
14 * that use the same license as the "OpenSSL" library), and distribute
15 * the linked executables. You must obey the GNU General Public License
16 * in all respects for all of the code used other than "OpenSSL". If you
17 * modify file(s) with this exception, you may extend this exception to
18 * your version of the file(s), but you are not obligated to do so. If
19 * you do not wish to do so, delete this exception statement from your
20 * version. If you delete this exception statement from all source files
21 * in the program, then also delete it here.
22 *
23 * This program is distributed in the hope that it will be useful, but
24 * WITHOUT ANY WARRANTY; without even the implied warranty of
25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
26 * General Public License for more details.
27 *
28 * You should have received a copy of the GNU General Public License
29 * along with this program. If not, see <http://www.gnu.org/licenses/>.
30 **/
31
32
33 #pragma once
34
35 #include "BufferHttpSender.h"
36
37 #include <memory> // For std::auto_ptr
38
39 namespace Orthanc
40 {
41 class HttpStreamTranscoder : public IHttpStreamAnswer
42 {
43 private:
44 IHttpStreamAnswer& source_;
45 CompressionType sourceCompression_;
46 uint64_t bytesToSkip_;
47 uint64_t skipped_;
48 uint64_t currentChunkOffset_;
49
50 std::auto_ptr<BufferHttpSender> uncompressed_;
51
52 void ReadSource(std::string& buffer);
53
54 public:
55 HttpStreamTranscoder(IHttpStreamAnswer& source,
56 CompressionType compression) :
57 source_(source),
58 sourceCompression_(compression),
59 bytesToSkip_(0),
60 skipped_(0)
61 {
62 }
63
64 // This is the first method to be called
65 virtual HttpCompression SetupHttpCompression(bool gzipAllowed,
66 bool deflateAllowed);
67
68 virtual bool HasContentFilename(std::string& filename)
69 {
70 return source_.HasContentFilename(filename);
71 }
72
73 virtual std::string GetContentType()
74 {
75 return source_.GetContentType();
76 }
77
78 virtual uint64_t GetContentLength();
79
80 virtual bool ReadNextChunk();
81
82 virtual const char* GetChunkContent();
83
84 virtual size_t GetChunkSize();
85 };
86 }