1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
|
/*****************************************************************
|
| Platinum - HTTP Server
|
| Copyright (c) 2004-2010, Plutinosoft, LLC.
| All rights reserved.
| http://www.plutinosoft.com
|
| This program is free software; you can redistribute it and/or
| modify it under the terms of the GNU General Public License
| as published by the Free Software Foundation; either version 2
| of the License, or (at your option) any later version.
|
| OEMs, ISVs, VARs and other distributors that combine and
| distribute commercially licensed software with Platinum software
| and do not wish to distribute the source code for the commercially
| licensed software under version 2, or (at your option) any later
| version, of the GNU General Public License (the "GPL") must enter
| into a commercial license agreement with Plutinosoft, LLC.
| licensing@plutinosoft.com
|
| This program is distributed in the hope that it will be useful,
| but WITHOUT ANY WARRANTY; without even the implied warranty of
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
| GNU General Public License for more details.
|
| You should have received a copy of the GNU General Public License
| along with this program; see the file LICENSE.txt. If not, write to
| the Free Software Foundation, Inc.,
| 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
| http://www.gnu.org/licenses/gpl-2.0.html
|
****************************************************************/
/*----------------------------------------------------------------------
| includes
+---------------------------------------------------------------------*/
#include "PltTaskManager.h"
#include "PltHttpServer.h"
#include "PltHttp.h"
#include "PltVersion.h"
#include "PltUtilities.h"
#include "PltProtocolInfo.h"
#include "PltMimeType.h"
NPT_SET_LOCAL_LOGGER("platinum.core.http.server")
/*----------------------------------------------------------------------
| PLT_HttpServer::PLT_HttpServer
+---------------------------------------------------------------------*/
PLT_HttpServer::PLT_HttpServer(NPT_IpAddress address,
NPT_IpPort port,
bool allow_random_port_on_bind_failure, /* = false */
NPT_Cardinal max_clients, /* = 50 */
bool reuse_address) : /* = false */
NPT_HttpServer(address, port, true),
m_TaskManager(new PLT_TaskManager(max_clients)),
m_Address(address),
m_Port(port),
m_AllowRandomPortOnBindFailure(allow_random_port_on_bind_failure),
m_ReuseAddress(reuse_address),
m_Running(false),
m_Aborted(false)
{
}
/*----------------------------------------------------------------------
| PLT_HttpServer::~PLT_HttpServer
+---------------------------------------------------------------------*/
PLT_HttpServer::~PLT_HttpServer()
{
Stop();
}
/*----------------------------------------------------------------------
| PLT_HttpServer::Start
+---------------------------------------------------------------------*/
NPT_Result
PLT_HttpServer::Start()
{
NPT_Result res = NPT_FAILURE;
// we can't start an already running server or restart an aborted server
// because the socket is shared create a new instance
if (m_Running || m_Aborted) NPT_CHECK_WARNING(NPT_ERROR_INVALID_STATE);
// if we're given a port for our http server, try it
if (m_Port) {
res = SetListenPort(m_Port, m_ReuseAddress);
// return right away if failed and not allowed to try again randomly
if (NPT_FAILED(res) && !m_AllowRandomPortOnBindFailure) {
NPT_CHECK_SEVERE(res);
}
}
// try random port now
if (!m_Port || NPT_FAILED(res)) {
int retries = 100;
do {
int random = NPT_System::GetRandomInteger();
int port = (unsigned short)(1024 + (random % 1024));
if (NPT_SUCCEEDED(SetListenPort(port, m_ReuseAddress))) {
break;
}
} while (--retries > 0);
if (retries == 0) NPT_CHECK_SEVERE(NPT_FAILURE);
}
// keep track of port server has successfully bound
m_Port = m_BoundPort;
// Tell server to try to listen to more incoming sockets
// (this could fail silently)
if (m_TaskManager->GetMaxTasks() > 20) {
m_Socket.Listen(m_TaskManager->GetMaxTasks());
}
// start a task to listen for incoming connections
PLT_HttpListenTask *task = new PLT_HttpListenTask(this, &m_Socket, false);
NPT_CHECK_SEVERE(m_TaskManager->StartTask(task));
NPT_SocketInfo info;
m_Socket.GetInfo(info);
NPT_LOG_INFO_2("HttpServer listening on %s:%d",
(const char*)info.local_address.GetIpAddress().ToString(),
m_Port);
m_Running = true;
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| PLT_HttpServer::Stop
+---------------------------------------------------------------------*/
NPT_Result
PLT_HttpServer::Stop()
{
// we can't restart an aborted server
if (m_Aborted || !m_Running) NPT_CHECK_WARNING(NPT_ERROR_INVALID_STATE);
// stop all other pending tasks
m_TaskManager->Abort();
m_Running = false;
m_Aborted = true;
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| PLT_HttpServer::SetupResponse
+---------------------------------------------------------------------*/
NPT_Result
PLT_HttpServer::SetupResponse(NPT_HttpRequest& request,
const NPT_HttpRequestContext& context,
NPT_HttpResponse& response)
{
NPT_String prefix = NPT_String::Format("PLT_HttpServer::SetupResponse %s request from %s for \"%s\"",
(const char*) request.GetMethod(),
(const char*) context.GetRemoteAddress().ToString(),
(const char*) request.GetUrl().ToString());
PLT_LOG_HTTP_REQUEST(NPT_LOG_LEVEL_FINE, prefix, &request);
NPT_List<NPT_HttpRequestHandler*> handlers = FindRequestHandlers(request);
if (handlers.GetItemCount() == 0) return NPT_ERROR_NO_SUCH_ITEM;
// ask the handler to setup the response
NPT_Result result = (*handlers.GetFirstItem())->SetupResponse(request, context, response);
// DLNA compliance
PLT_UPnPMessageHelper::SetDate(response);
if (request.GetHeaders().GetHeader("Accept-Language")) {
response.GetHeaders().SetHeader("Content-Language", "en");
}
return result;
}
/*----------------------------------------------------------------------
| PLT_HttpServer::ServeFile
+---------------------------------------------------------------------*/
NPT_Result
PLT_HttpServer::ServeFile(const NPT_HttpRequest& request,
const NPT_HttpRequestContext& context,
NPT_HttpResponse& response,
NPT_String file_path)
{
NPT_InputStreamReference stream;
NPT_File file(file_path);
NPT_FileInfo file_info;
// prevent hackers from accessing files outside of our root
if ((file_path.Find("/..") >= 0) || (file_path.Find("\\..") >= 0)) {
return NPT_ERROR_NO_SUCH_ITEM;
}
// check for range requests
const NPT_String* range_spec = request.GetHeaders().GetHeaderValue(NPT_HTTP_HEADER_RANGE);
// handle potential 304 only if range header not set
NPT_DateTime date;
NPT_TimeStamp timestamp;
if (NPT_SUCCEEDED(NPT_File::GetInfo(file_path, &file_info)) &&
NPT_SUCCEEDED(PLT_UPnPMessageHelper::GetIfModifiedSince((NPT_HttpMessage&)request, date)) &&
!range_spec) {
date.ToTimeStamp(timestamp);
NPT_LOG_INFO_5("File %s timestamps: request=%d (%s) vs file=%d (%s)",
(const char*)request.GetUrl().GetPath(),
(NPT_UInt32)timestamp.ToSeconds(),
(const char*)date.ToString(),
(NPT_UInt32)file_info.m_ModificationTime,
(const char*)NPT_DateTime(file_info.m_ModificationTime).ToString());
if (timestamp >= file_info.m_ModificationTime) {
// it's a match
NPT_LOG_FINE_1("Returning 304 for %s", request.GetUrl().GetPath().GetChars());
response.SetStatus(304, "Not Modified", NPT_HTTP_PROTOCOL_1_1);
return NPT_SUCCESS;
}
}
// open file
if (NPT_FAILED(file.Open(NPT_FILE_OPEN_MODE_READ)) ||
NPT_FAILED(file.GetInputStream(stream)) ||
stream.IsNull()) {
return NPT_ERROR_NO_SUCH_ITEM;
}
// set Last-Modified and Cache-Control headers
if (file_info.m_ModificationTime) {
NPT_DateTime last_modified = NPT_DateTime(file_info.m_ModificationTime);
response.GetHeaders().SetHeader("Last-Modified", last_modified.ToString(NPT_DateTime::FORMAT_RFC_1123), true);
response.GetHeaders().SetHeader("Cache-Control", "max-age=0,must-revalidate", true);
//response.GetHeaders().SetHeader("Cache-Control", "max-age=1800", true);
}
PLT_HttpRequestContext tmp_context(request, context);
return ServeStream(request, context, response, stream, PLT_MimeType::GetMimeType(file_path, &tmp_context));
}
/*----------------------------------------------------------------------
| PLT_HttpServer::ServeStream
+---------------------------------------------------------------------*/
NPT_Result
PLT_HttpServer::ServeStream(const NPT_HttpRequest& request,
const NPT_HttpRequestContext& context,
NPT_HttpResponse& response,
NPT_InputStreamReference& body,
const char* content_type)
{
if (body.IsNull()) return NPT_FAILURE;
// set date
NPT_TimeStamp now;
NPT_System::GetCurrentTimeStamp(now);
response.GetHeaders().SetHeader("Date", NPT_DateTime(now).ToString(NPT_DateTime::FORMAT_RFC_1123), true);
// get entity
NPT_HttpEntity* entity = response.GetEntity();
NPT_CHECK_POINTER_FATAL(entity);
// set the content type
entity->SetContentType(content_type);
// check for range requests
const NPT_String* range_spec = request.GetHeaders().GetHeaderValue(NPT_HTTP_HEADER_RANGE);
// setup entity body
NPT_CHECK(NPT_HttpFileRequestHandler::SetupResponseBody(response, body, range_spec));
// set some default headers
if (response.GetEntity()->GetTransferEncoding() != NPT_HTTP_TRANSFER_ENCODING_CHUNKED) {
// set but don't replace Accept-Range header only if body is seekable
NPT_Position offset;
if (NPT_SUCCEEDED(body->Tell(offset)) && NPT_SUCCEEDED(body->Seek(offset))) {
response.GetHeaders().SetHeader(NPT_HTTP_HEADER_ACCEPT_RANGES, "bytes", false);
}
}
// set getcontentFeatures.dlna.org
const NPT_String* value = request.GetHeaders().GetHeaderValue("getcontentFeatures.dlna.org");
if (value) {
PLT_HttpRequestContext tmp_context(request, context);
const char* dlna = PLT_ProtocolInfo::GetDlnaExtension(entity->GetContentType(),
&tmp_context);
if (dlna) response.GetHeaders().SetHeader("ContentFeatures.DLNA.ORG", dlna, false);
}
// transferMode.dlna.org
value = request.GetHeaders().GetHeaderValue("transferMode.dlna.org");
if (value) {
// Interactive mode not supported?
/*if (value->Compare("Interactive", true) == 0) {
response.SetStatus(406, "Not Acceptable");
return NPT_SUCCESS;
}*/
response.GetHeaders().SetHeader("TransferMode.DLNA.ORG", value->GetChars(), false);
} else {
response.GetHeaders().SetHeader("TransferMode.DLNA.ORG", "Streaming", false);
}
if (request.GetHeaders().GetHeaderValue("TimeSeekRange.dlna.org")) {
response.SetStatus(406, "Not Acceptable");
return NPT_SUCCESS;
}
return NPT_SUCCESS;
}
|