1 | // Part of BNC, a utility for retrieving decoding and
|
---|
2 | // converting GNSS data streams from NTRIP broadcasters,
|
---|
3 | // written by Leos Mervart.
|
---|
4 | //
|
---|
5 | // Copyright (C) 2006
|
---|
6 | // German Federal Agency for Cartography and Geodesy (BKG)
|
---|
7 | // http://www.bkg.bund.de
|
---|
8 | // Czech Technical University Prague, Department of Advanced Geodesy
|
---|
9 | // http://www.fsv.cvut.cz
|
---|
10 | //
|
---|
11 | // Email: euref-ip@bkg.bund.de
|
---|
12 | //
|
---|
13 | // This program is free software; you can redistribute it and/or
|
---|
14 | // modify it under the terms of the GNU General Public License
|
---|
15 | // as published by the Free Software Foundation, version 2.
|
---|
16 | //
|
---|
17 | // This program is distributed in the hope that it will be useful,
|
---|
18 | // but WITHOUT ANY WARRANTY; without even the implied warranty of
|
---|
19 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
---|
20 | // GNU General Public License for more details.
|
---|
21 | //
|
---|
22 | // You should have received a copy of the GNU General Public License
|
---|
23 | // along with this program; if not, write to the Free Software
|
---|
24 | // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
---|
25 |
|
---|
26 | /* -------------------------------------------------------------------------
|
---|
27 | * BKG NTRIP Client
|
---|
28 | * -------------------------------------------------------------------------
|
---|
29 | *
|
---|
30 | * Class: bncGetThread
|
---|
31 | *
|
---|
32 | * Purpose: Thread that retrieves data from NTRIP caster
|
---|
33 | *
|
---|
34 | * Author: L. Mervart
|
---|
35 | *
|
---|
36 | * Created: 24-Dec-2005
|
---|
37 | *
|
---|
38 | * Changes:
|
---|
39 | *
|
---|
40 | * -----------------------------------------------------------------------*/
|
---|
41 |
|
---|
42 | #include <stdlib.h>
|
---|
43 |
|
---|
44 | #include <QFile>
|
---|
45 | #include <QTextStream>
|
---|
46 | #include <QtNetwork>
|
---|
47 |
|
---|
48 | #include "bncgetthread.h"
|
---|
49 | #include "bnctabledlg.h"
|
---|
50 | #include "bncapp.h"
|
---|
51 |
|
---|
52 | #include "RTCM/RTCM2Decoder.h"
|
---|
53 | #include "RTCM3/RTCM3Decoder.h"
|
---|
54 | #include "RTIGS/RTIGSDecoder.h"
|
---|
55 |
|
---|
56 | using namespace std;
|
---|
57 |
|
---|
58 | // Constructor
|
---|
59 | ////////////////////////////////////////////////////////////////////////////
|
---|
60 | bncGetThread::bncGetThread(const QUrl& mountPoint,
|
---|
61 | const QByteArray& format, int iMount) {
|
---|
62 | _decoder = 0;
|
---|
63 | _mountPoint = mountPoint;
|
---|
64 | _staID = mountPoint.path().mid(1).toAscii();
|
---|
65 | _staID_orig = _staID;
|
---|
66 | _format = format;
|
---|
67 | _socket = 0;
|
---|
68 | _timeOut = 20*1000; // 20 seconds
|
---|
69 | _nextSleep = 1; // 1 second
|
---|
70 | _iMount = iMount; // index in mountpoints array
|
---|
71 |
|
---|
72 | // Check name conflict
|
---|
73 | // -------------------
|
---|
74 | QSettings settings;
|
---|
75 | QListIterator<QString> it(settings.value("mountPoints").toStringList());
|
---|
76 | int num = 0;
|
---|
77 | int ind = -1;
|
---|
78 | while (it.hasNext()) {
|
---|
79 | ++ind;
|
---|
80 | QStringList hlp = it.next().split(" ");
|
---|
81 | if (hlp.size() <= 1) continue;
|
---|
82 | QUrl url(hlp[0]);
|
---|
83 | if (_mountPoint.path() == url.path()) {
|
---|
84 | if (_iMount > ind) {
|
---|
85 | ++num;
|
---|
86 | }
|
---|
87 | }
|
---|
88 | }
|
---|
89 |
|
---|
90 | if (num > 0) {
|
---|
91 | _staID = _staID.left(_staID.length()-1) + QString("%1").arg(num).toAscii();
|
---|
92 | }
|
---|
93 | }
|
---|
94 |
|
---|
95 | // Destructor
|
---|
96 | ////////////////////////////////////////////////////////////////////////////
|
---|
97 | bncGetThread::~bncGetThread() {
|
---|
98 | delete _socket;
|
---|
99 | delete _decoder;
|
---|
100 | }
|
---|
101 |
|
---|
102 | // Connect to Caster, send the Request (static)
|
---|
103 | ////////////////////////////////////////////////////////////////////////////
|
---|
104 | QTcpSocket* bncGetThread::request(const QUrl& mountPoint, int timeOut,
|
---|
105 | QString& msg) {
|
---|
106 |
|
---|
107 | // Connect the Socket
|
---|
108 | // ------------------
|
---|
109 | QSettings settings;
|
---|
110 | QString proxyHost = settings.value("proxyHost").toString();
|
---|
111 | int proxyPort = settings.value("proxyPort").toInt();
|
---|
112 |
|
---|
113 | QTcpSocket* socket = new QTcpSocket();
|
---|
114 | if ( proxyHost.isEmpty() ) {
|
---|
115 | socket->connectToHost(mountPoint.host(), mountPoint.port());
|
---|
116 | }
|
---|
117 | else {
|
---|
118 | socket->connectToHost(proxyHost, proxyPort);
|
---|
119 | }
|
---|
120 | if (!socket->waitForConnected(timeOut)) {
|
---|
121 | msg += "Connect timeout\n";
|
---|
122 | delete socket;
|
---|
123 | return 0;
|
---|
124 | }
|
---|
125 |
|
---|
126 | // Send Request
|
---|
127 | // ------------
|
---|
128 | QByteArray userAndPwd = mountPoint.userName().toAscii() + ":" +
|
---|
129 | mountPoint.password().toAscii();
|
---|
130 |
|
---|
131 | QUrl hlp;
|
---|
132 | hlp.setScheme("http");
|
---|
133 | hlp.setHost(mountPoint.host());
|
---|
134 | hlp.setPort(mountPoint.port());
|
---|
135 | hlp.setPath(mountPoint.path());
|
---|
136 |
|
---|
137 | QByteArray reqStr;
|
---|
138 | if ( proxyHost.isEmpty() ) {
|
---|
139 | if (hlp.path().indexOf("/") != 0) hlp.setPath("/");
|
---|
140 | reqStr = "GET " + hlp.path().toAscii() +
|
---|
141 | " HTTP/1.0\r\n"
|
---|
142 | "User-Agent: NTRIP BNC 1.0b\r\n"
|
---|
143 | "Authorization: Basic " +
|
---|
144 | userAndPwd.toBase64() + "\r\n\r\n";
|
---|
145 | } else {
|
---|
146 | reqStr = "GET " + hlp.toEncoded() +
|
---|
147 | " HTTP/1.0\r\n"
|
---|
148 | "User-Agent: NTRIP BNC 1.0b\r\n"
|
---|
149 | "Authorization: Basic " +
|
---|
150 | userAndPwd.toBase64() + "\r\n\r\n";
|
---|
151 | }
|
---|
152 |
|
---|
153 | msg += reqStr;
|
---|
154 |
|
---|
155 | socket->write(reqStr, reqStr.length());
|
---|
156 |
|
---|
157 | if (!socket->waitForBytesWritten(timeOut)) {
|
---|
158 | msg += "Write timeout\n";
|
---|
159 | delete socket;
|
---|
160 | return 0;
|
---|
161 | }
|
---|
162 |
|
---|
163 | return socket;
|
---|
164 | }
|
---|
165 |
|
---|
166 | // Init Run
|
---|
167 | ////////////////////////////////////////////////////////////////////////////
|
---|
168 | t_irc bncGetThread::initRun() {
|
---|
169 |
|
---|
170 | // Send the Request
|
---|
171 | // ----------------
|
---|
172 | QString msg;
|
---|
173 |
|
---|
174 | _socket = bncGetThread::request(_mountPoint, _timeOut, msg);
|
---|
175 |
|
---|
176 | //// emit(newMessage(msg.toAscii()));
|
---|
177 |
|
---|
178 | if (!_socket) {
|
---|
179 | return failure;
|
---|
180 | }
|
---|
181 |
|
---|
182 | // Read Caster Response
|
---|
183 | // --------------------
|
---|
184 | _socket->waitForReadyRead(_timeOut);
|
---|
185 | if (_socket->canReadLine()) {
|
---|
186 | QString line = _socket->readLine();
|
---|
187 | if (line.indexOf("Unauthorized") != -1) {
|
---|
188 | QStringList table;
|
---|
189 | bncTableDlg::getFullTable(_mountPoint.host(), _mountPoint.port(), table);
|
---|
190 | QString net;
|
---|
191 | QStringListIterator it(table);
|
---|
192 | while (it.hasNext()) {
|
---|
193 | QString line = it.next();
|
---|
194 | if (line.indexOf("STR") == 0) {
|
---|
195 | QStringList tags = line.split(";");
|
---|
196 | if (tags.at(1) == _staID_orig) {
|
---|
197 | net = tags.at(7);
|
---|
198 | break;
|
---|
199 | }
|
---|
200 | }
|
---|
201 | }
|
---|
202 |
|
---|
203 | QString reg;
|
---|
204 | it.toFront();
|
---|
205 | while (it.hasNext()) {
|
---|
206 | QString line = it.next();
|
---|
207 | if (line.indexOf("NET") == 0) {
|
---|
208 | QStringList tags = line.split(";");
|
---|
209 | if (tags.at(1) == net) {
|
---|
210 | reg = tags.at(7);
|
---|
211 | break;
|
---|
212 | }
|
---|
213 | }
|
---|
214 | }
|
---|
215 | emit(newMessage((_staID + ": Caster Response: " + line +
|
---|
216 | " Adjust User-ID and Password Register, see"
|
---|
217 | "\n " + reg).toAscii()));
|
---|
218 | return fatal;
|
---|
219 | }
|
---|
220 | if (line.indexOf("ICY 200 OK") != 0) {
|
---|
221 | emit(newMessage((_staID + ": Wrong Caster Response:\n" + line).toAscii()));
|
---|
222 | return failure;
|
---|
223 | }
|
---|
224 | }
|
---|
225 | else {
|
---|
226 | emit(newMessage(_staID + ": Response Timeout"));
|
---|
227 | return failure;
|
---|
228 | }
|
---|
229 |
|
---|
230 | // Instantiate the filter
|
---|
231 | // ----------------------
|
---|
232 | if (!_decoder) {
|
---|
233 | if (_format.indexOf("RTCM_2") != -1) {
|
---|
234 | emit(newMessage("Get Data: " + _staID + " in RTCM 2.x format"));
|
---|
235 | _decoder = new RTCM2Decoder();
|
---|
236 | }
|
---|
237 | else if (_format.indexOf("RTCM_3") != -1) {
|
---|
238 | emit(newMessage("Get Data: " + _staID + " in RTCM 3.0 format"));
|
---|
239 | _decoder = new RTCM3Decoder();
|
---|
240 | }
|
---|
241 | else if (_format.indexOf("RTIGS") != -1) {
|
---|
242 | emit(newMessage("Get Data: " + _staID + " in RTIGS format"));
|
---|
243 | _decoder = new RTIGSDecoder();
|
---|
244 | }
|
---|
245 | else {
|
---|
246 | emit(newMessage(_staID + ": Unknown data format " + _format));
|
---|
247 | return fatal;
|
---|
248 | }
|
---|
249 | }
|
---|
250 | return success;
|
---|
251 | }
|
---|
252 |
|
---|
253 | // Run
|
---|
254 | ////////////////////////////////////////////////////////////////////////////
|
---|
255 | void bncGetThread::run() {
|
---|
256 |
|
---|
257 | t_irc irc = initRun();
|
---|
258 |
|
---|
259 | if (irc == fatal) {
|
---|
260 | QThread::exit(1);
|
---|
261 | return;
|
---|
262 | }
|
---|
263 | else if (irc != success) {
|
---|
264 | emit(newMessage(_staID + ": initRun failed, reconnecting"));
|
---|
265 | tryReconnect();
|
---|
266 | }
|
---|
267 |
|
---|
268 | // Read Incoming Data
|
---|
269 | // ------------------
|
---|
270 | while (true) {
|
---|
271 | try {
|
---|
272 | if (_socket->state() != QAbstractSocket::ConnectedState) {
|
---|
273 | emit(newMessage(_staID + ": Socket not connected, reconnecting"));
|
---|
274 | tryReconnect();
|
---|
275 | }
|
---|
276 |
|
---|
277 |
|
---|
278 | _socket->waitForReadyRead(_timeOut);
|
---|
279 | qint64 nBytes = _socket->bytesAvailable();
|
---|
280 | if (nBytes > 0) {
|
---|
281 | char* data = new char[nBytes];
|
---|
282 | _socket->read(data, nBytes);
|
---|
283 | _decoder->Decode(data, nBytes);
|
---|
284 | delete data;
|
---|
285 | for (list<Observation*>::iterator it = _decoder->_obsList.begin();
|
---|
286 | it != _decoder->_obsList.end(); it++) {
|
---|
287 | emit newObs(_staID, *it);
|
---|
288 | bool firstObs = (it == _decoder->_obsList.begin());
|
---|
289 | _global_caster->newObs(_staID, _mountPoint, firstObs, *it);
|
---|
290 | }
|
---|
291 | _decoder->_obsList.clear();
|
---|
292 | }
|
---|
293 | else {
|
---|
294 | emit(newMessage(_staID + ": Data Timeout, reconnecting"));
|
---|
295 | tryReconnect();
|
---|
296 | }
|
---|
297 | }
|
---|
298 | catch (const char* msg) {
|
---|
299 | emit(newMessage(_staID + msg));
|
---|
300 | tryReconnect();
|
---|
301 | }
|
---|
302 | }
|
---|
303 | }
|
---|
304 |
|
---|
305 | // Exit
|
---|
306 | ////////////////////////////////////////////////////////////////////////////
|
---|
307 | void bncGetThread::exit(int exitCode) {
|
---|
308 | if (exitCode!= 0) {
|
---|
309 | emit error(_staID);
|
---|
310 | }
|
---|
311 | QThread::exit(exitCode);
|
---|
312 | terminate();
|
---|
313 | }
|
---|
314 |
|
---|
315 | // Try Re-Connect
|
---|
316 | ////////////////////////////////////////////////////////////////////////////
|
---|
317 | void bncGetThread::tryReconnect() {
|
---|
318 | while (1) {
|
---|
319 | delete _socket; _socket = 0;
|
---|
320 | sleep(_nextSleep);
|
---|
321 | if ( initRun() == success ) {
|
---|
322 | break;
|
---|
323 | }
|
---|
324 | else {
|
---|
325 | _nextSleep *= 2;
|
---|
326 | if (_nextSleep > 128) {
|
---|
327 | _nextSleep = 128;
|
---|
328 | }
|
---|
329 | _nextSleep += rand() % 6;
|
---|
330 | }
|
---|
331 | }
|
---|
332 | _nextSleep = 1;
|
---|
333 | }
|
---|