Mercurial > hg > orthanc
annotate Core/HttpServer/HttpOutput.cpp @ 2753:078e43c749d2 Orthanc-0.8.1
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| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Tue, 17 Jul 2018 09:40:53 +0200 |
| parents | 8d1845feb277 |
| children | ba5c0908600c |
| rev | line source |
|---|---|
| 0 | 1 /** |
| 59 | 2 * Orthanc - A Lightweight, RESTful DICOM Store |
| 689 | 3 * Copyright (C) 2012-2014 Medical Physics Department, CHU of Liege, |
| 0 | 4 * 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. | |
| 136 | 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. | |
| 0 | 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 | |
|
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33 #include "../PrecompiledHeaders.h" |
| 0 | 34 #include "HttpOutput.h" |
| 35 | |
| 324 | 36 #include <iostream> |
| 0 | 37 #include <vector> |
| 38 #include <stdio.h> | |
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39 #include <glog/logging.h> |
| 0 | 40 #include <boost/lexical_cast.hpp> |
| 59 | 41 #include "../OrthancException.h" |
| 0 | 42 #include "../Toolbox.h" |
| 43 | |
| 59 | 44 namespace Orthanc |
| 0 | 45 { |
| 910 | 46 void HttpOutput::StateMachine::SendHttpStatus(HttpStatus status) |
| 47 { | |
| 48 if (state_ != State_WaitingHttpStatus) | |
| 49 { | |
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50 LOG(ERROR) << "Sending twice an HTTP status"; |
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51 return; |
| 910 | 52 } |
| 53 | |
| 911 | 54 stream_.OnHttpStatusReceived(status); |
| 910 | 55 state_ = State_WritingHeader; |
| 56 | |
| 57 std::string s = "HTTP/1.1 " + | |
| 58 boost::lexical_cast<std::string>(status) + | |
| 59 " " + std::string(EnumerationToString(status)) + | |
| 60 "\r\n"; | |
| 61 | |
| 911 | 62 stream_.Send(true, &s[0], s.size()); |
| 910 | 63 } |
| 64 | |
| 65 void HttpOutput::StateMachine::SendHeaderData(const void* buffer, size_t length) | |
| 66 { | |
| 67 if (state_ != State_WritingHeader) | |
| 68 { | |
| 69 throw OrthancException(ErrorCode_BadSequenceOfCalls); | |
| 70 } | |
| 71 | |
| 911 | 72 stream_.Send(true, buffer, length); |
| 910 | 73 } |
| 74 | |
| 75 void HttpOutput::StateMachine::SendHeaderString(const std::string& str) | |
| 76 { | |
| 77 if (str.size() > 0) | |
| 78 { | |
| 79 SendHeaderData(&str[0], str.size()); | |
| 80 } | |
| 81 } | |
| 82 | |
| 83 void HttpOutput::StateMachine::SendBodyData(const void* buffer, size_t length) | |
| 84 { | |
| 85 if (state_ == State_WaitingHttpStatus) | |
| 86 { | |
| 87 throw OrthancException(ErrorCode_BadSequenceOfCalls); | |
| 88 } | |
| 89 | |
| 90 if (state_ == State_WritingHeader) | |
| 91 { | |
| 92 // Close the HTTP header before writing the body | |
| 911 | 93 stream_.Send(true, "\r\n", 2); |
| 910 | 94 state_ = State_WritingBody; |
| 95 } | |
| 96 | |
| 97 if (length > 0) | |
| 98 { | |
| 911 | 99 stream_.Send(false, buffer, length); |
| 910 | 100 } |
| 101 } | |
| 102 | |
| 103 void HttpOutput::StateMachine::SendBodyString(const std::string& str) | |
| 104 { | |
| 105 if (str.size() > 0) | |
| 106 { | |
| 107 SendBodyData(&str[0], str.size()); | |
| 108 } | |
| 109 } | |
| 110 | |
| 111 | |
| 330 | 112 void HttpOutput::PrepareOkHeader(Header& header, |
| 113 const char* contentType, | |
| 114 bool hasContentLength, | |
| 115 uint64_t contentLength, | |
| 116 const char* contentFilename) | |
| 117 { | |
| 118 header.clear(); | |
| 119 | |
| 120 if (contentType && contentType[0] != '\0') | |
| 121 { | |
| 122 header.push_back(std::make_pair("Content-Type", std::string(contentType))); | |
| 123 } | |
| 124 | |
| 125 if (hasContentLength) | |
| 126 { | |
| 127 header.push_back(std::make_pair("Content-Length", boost::lexical_cast<std::string>(contentLength))); | |
| 128 } | |
| 129 | |
| 130 if (contentFilename && contentFilename[0] != '\0') | |
| 131 { | |
| 132 std::string attachment = "attachment; filename=\"" + std::string(contentFilename) + "\""; | |
| 133 header.push_back(std::make_pair("Content-Disposition", attachment)); | |
| 134 } | |
| 135 } | |
| 136 | |
| 0 | 137 void HttpOutput::SendOkHeader(const char* contentType, |
| 138 bool hasContentLength, | |
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139 uint64_t contentLength, |
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140 const char* contentFilename) |
| 0 | 141 { |
| 330 | 142 Header header; |
| 143 PrepareOkHeader(header, contentType, hasContentLength, contentLength, contentFilename); | |
| 144 SendOkHeader(header); | |
| 0 | 145 } |
| 146 | |
| 330 | 147 void HttpOutput::SendOkHeader(const Header& header) |
| 324 | 148 { |
| 911 | 149 stateMachine_.SendHttpStatus(HttpStatus_200_Ok); |
| 0 | 150 |
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151 std::string s; |
| 330 | 152 for (Header::const_iterator |
| 656 | 153 it = header.begin(); it != header.end(); ++it) |
| 324 | 154 { |
| 155 s += it->first + ": " + it->second + "\r\n"; | |
| 156 } | |
| 157 | |
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158 for (HttpHandler::Arguments::const_iterator |
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159 it = cookies_.begin(); it != cookies_.end(); ++it) |
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160 { |
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161 s += "Set-Cookie: " + it->first + "=" + it->second + "\r\n"; |
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162 } |
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163 |
| 911 | 164 stateMachine_.SendHeaderString(s); |
| 207 | 165 } |
| 166 | |
| 167 | |
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168 void HttpOutput::SendMethodNotAllowed(const std::string& allowed) |
| 0 | 169 { |
| 911 | 170 stateMachine_.SendHttpStatus(HttpStatus_405_MethodNotAllowed); |
| 171 stateMachine_.SendHeaderString("Allow: " + allowed + "\r\n"); | |
| 0 | 172 } |
| 173 | |
| 174 | |
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175 void HttpOutput::SendHeader(HttpStatus status) |
| 0 | 176 { |
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177 if (status == HttpStatus_200_Ok || |
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178 status == HttpStatus_301_MovedPermanently || |
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179 status == HttpStatus_401_Unauthorized || |
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180 status == HttpStatus_405_MethodNotAllowed) |
| 0 | 181 { |
| 59 | 182 throw OrthancException("Please use the dedicated methods to this HTTP status code in HttpOutput"); |
| 0 | 183 } |
| 184 | |
| 911 | 185 stateMachine_.SendHttpStatus(status); |
| 0 | 186 } |
| 187 | |
| 188 | |
| 189 void HttpOutput::AnswerBufferWithContentType(const std::string& buffer, | |
| 190 const std::string& contentType) | |
| 191 { | |
| 330 | 192 Header header; |
| 193 PrepareOkHeader(header, contentType.c_str(), true, buffer.size(), NULL); | |
| 194 SendOkHeader(header); | |
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195 SendBodyString(buffer); |
| 330 | 196 } |
| 197 | |
| 198 | |
| 0 | 199 void HttpOutput::AnswerBufferWithContentType(const void* buffer, |
| 200 size_t size, | |
| 201 const std::string& contentType) | |
| 202 { | |
| 339 | 203 Header header; |
| 204 PrepareOkHeader(header, contentType.c_str(), true, size, NULL); | |
| 205 SendOkHeader(header); | |
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206 SendBodyData(buffer, size); |
| 339 | 207 } |
| 208 | |
| 209 | |
| 0 | 210 void HttpOutput::Redirect(const std::string& path) |
| 211 { | |
| 911 | 212 stateMachine_.SendHttpStatus(HttpStatus_301_MovedPermanently); |
| 213 stateMachine_.SendHeaderString("Location: " + path + "\r\n"); | |
| 0 | 214 } |
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215 |
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216 |
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217 void HttpOutput::SendUnauthorized(const std::string& realm) |
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218 { |
| 911 | 219 stateMachine_.SendHttpStatus(HttpStatus_401_Unauthorized); |
| 220 stateMachine_.SendHeaderString("WWW-Authenticate: Basic realm=\"" + realm + "\"\r\n"); | |
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221 } |
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222 |
| 0 | 223 } |