source: ntrip/trunk/BNC/src/bncrinex.cpp@ 6777

Last change on this file since 6777 was 6777, checked in by stuerze, 7 years ago

switch to port 443 for skeleton file download if https is used

File size: 14.9 KB
Line 
1// Part of BNC, a utility for retrieving decoding and
2// converting GNSS data streams from NTRIP broadcasters.
3//
4// Copyright (C) 2007
5// German Federal Agency for Cartography and Geodesy (BKG)
6// http://www.bkg.bund.de
7// Czech Technical University Prague, Department of Geodesy
8// http://www.fsv.cvut.cz
9//
10// Email: euref-ip@bkg.bund.de
11//
12// This program is free software; you can redistribute it and/or
13// modify it under the terms of the GNU General Public License
14// as published by the Free Software Foundation, version 2.
15//
16// This program is distributed in the hope that it will be useful,
17// but WITHOUT ANY WARRANTY; without even the implied warranty of
18// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19// GNU General Public License for more details.
20//
21// You should have received a copy of the GNU General Public License
22// along with this program; if not, write to the Free Software
23// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
24
25/* -------------------------------------------------------------------------
26 * BKG NTRIP Client
27 * -------------------------------------------------------------------------
28 *
29 * Class: bncRinex
30 *
31 * Purpose: writes RINEX files
32 *
33 * Author: L. Mervart
34 *
35 * Created: 27-Aug-2006
36 *
37 * Changes:
38 *
39 * -----------------------------------------------------------------------*/
40
41#include <stdlib.h>
42#include <iostream>
43#include <iomanip>
44#include <math.h>
45#include <sstream>
46
47#include <QtCore>
48#include <QUrl>
49#include <QString>
50
51#include "bncrinex.h"
52#include "bnccore.h"
53#include "bncutils.h"
54#include "bncconst.h"
55#include "bnctabledlg.h"
56#include "bncgetthread.h"
57#include "bncnetqueryv1.h"
58#include "bncnetqueryv2.h"
59#include "bncsettings.h"
60#include "bncversion.h"
61
62using namespace std;
63
64// Constructor
65////////////////////////////////////////////////////////////////////////////
66bncRinex::bncRinex(const QByteArray& statID, const QUrl& mountPoint,
67 const QByteArray& latitude, const QByteArray& longitude,
68 const QByteArray& nmea, const QByteArray& ntripVersion) {
69
70 _statID = statID;
71 _mountPoint = mountPoint;
72 _latitude = latitude;
73 _longitude = longitude;
74 _nmea = nmea;
75 _ntripVersion = ntripVersion;
76 _headerWritten = false;
77 _reconnectFlag = false;
78
79 bncSettings settings;
80 _rnxScriptName = settings.value("rnxScript").toString();
81 expandEnvVar(_rnxScriptName);
82
83 _pgmName = QString(BNCPGMNAME).leftJustified(20, ' ', true);
84#ifdef WIN32
85 _userName = QString("${USERNAME}");
86#else
87 _userName = QString("${USER}");
88#endif
89 expandEnvVar(_userName);
90 _userName = _userName.leftJustified(20, ' ', true);
91
92 _samplingRate = settings.value("rnxSampl").toInt();
93}
94
95// Destructor
96////////////////////////////////////////////////////////////////////////////
97bncRinex::~bncRinex() {
98 bncSettings settings;
99 if ((_header.version() >= 3.0) && ( Qt::CheckState(settings.value("rnxAppend").toInt()) != Qt::Checked) ) {
100 _out << "> 4 1" << endl;
101 _out << "END OF FILE" << endl;
102 }
103 _out.close();
104}
105
106// Download Skeleton Header File
107////////////////////////////////////////////////////////////////////////////
108t_irc bncRinex::downloadSkeleton() {
109
110 t_irc irc = failure;
111
112 QStringList table;
113 bncTableDlg::getFullTable(_ntripVersion, _mountPoint.host(),
114 _mountPoint.port(), table, true);
115 QString net;
116 QStringListIterator it(table);
117 while (it.hasNext()) {
118 QString line = it.next();
119 if (line.indexOf("STR") == 0) {
120 QStringList tags = line.split(";");
121 if (tags.size() > 7) {
122 if (tags.at(1) == _mountPoint.path().mid(1).toAscii()) {
123 net = tags.at(7);
124 break;
125 }
126 }
127 }
128 }
129 QString sklDir;
130
131 if (!net.isEmpty()) {
132 it.toFront();
133 while (it.hasNext()) {
134 QString line = it.next();
135 if (line.indexOf("NET") == 0) {
136 QStringList tags = line.split(";");
137 if (tags.size() > 6) {
138 if (tags.at(1) == net) {
139 sklDir = tags.at(6).trimmed();
140 break;
141 }
142 }
143 }
144 }
145 }
146 if (!sklDir.isEmpty() && sklDir != "none") {
147 QUrl url(sklDir + "/" + _mountPoint.path().mid(1,4).toLower() + ".skl");
148 if (url.port() == -1) {
149 if (sklDir.contains("https")) {
150 url.setPort(443);
151 }
152 else {
153 url.setPort(80);
154 }
155 }
156
157 bncNetQuery* query;
158 if (_ntripVersion == "2s") {
159 query = new bncNetQueryV2(true);
160 }
161 else if (_ntripVersion == "2") {
162 query = new bncNetQueryV2(false);
163 }
164 else {
165 query = new bncNetQueryV1;
166 }
167
168 QByteArray outData;
169 query->waitForRequestResult(url, outData);
170
171 if (query->status() == bncNetQuery::finished) {
172 irc = success;
173 QTextStream in(outData);
174 _sklHeader.read(&in);
175 }
176
177 delete query;
178 }
179
180 return irc;
181}
182
183// Read Skeleton Header File
184////////////////////////////////////////////////////////////////////////////
185bool bncRinex::readSkeleton() {
186
187 bool readDone = false;
188
189 // Read the local file
190 // -------------------
191 QFile skl(_sklName);
192 if ( skl.exists() && skl.open(QIODevice::ReadOnly) ) {
193 readDone = true;
194 QTextStream in(&skl);
195 _sklHeader.read(&in);
196 }
197
198 // Read downloaded file
199 // --------------------
200 else if ( _ntripVersion != "N" && _ntripVersion != "UN" &&
201 _ntripVersion != "S" ) {
202 QDate currDate = currentDateAndTimeGPS().date();
203 if ( !_skeletonDate.isValid() || _skeletonDate != currDate ) {
204 if (downloadSkeleton() == success) {
205 readDone = true;
206 }
207 _skeletonDate = currDate;
208 }
209 }
210
211 return readDone;
212}
213
214// Next File Epoch (static)
215////////////////////////////////////////////////////////////////////////////
216QString bncRinex::nextEpochStr(const QDateTime& datTim,
217 const QString& intStr, QDateTime* nextEpoch) {
218
219 QString epoStr;
220
221 QTime nextTime;
222 QDate nextDate;
223
224 int indHlp = intStr.indexOf("min");
225
226 if ( indHlp != -1) {
227 int step = intStr.left(indHlp-1).toInt();
228 char ch = 'A' + datTim.time().hour();
229 epoStr = ch;
230 if (datTim.time().minute() >= 60-step) {
231 epoStr += QString("%1").arg(60-step, 2, 10, QChar('0'));
232 if (datTim.time().hour() < 23) {
233 nextTime.setHMS(datTim.time().hour() + 1 , 0, 0);
234 nextDate = datTim.date();
235 }
236 else {
237 nextTime.setHMS(0, 0, 0);
238 nextDate = datTim.date().addDays(1);
239 }
240 }
241 else {
242 for (int limit = step; limit <= 60-step; limit += step) {
243 if (datTim.time().minute() < limit) {
244 epoStr += QString("%1").arg(limit-step, 2, 10, QChar('0'));
245 nextTime.setHMS(datTim.time().hour(), limit, 0);
246 nextDate = datTim.date();
247 break;
248 }
249 }
250 }
251 }
252 else if (intStr == "1 hour") {
253 char ch = 'A' + datTim.time().hour();
254 epoStr = ch;
255 if (datTim.time().hour() < 23) {
256 nextTime.setHMS(datTim.time().hour() + 1 , 0, 0);
257 nextDate = datTim.date();
258 }
259 else {
260 nextTime.setHMS(0, 0, 0);
261 nextDate = datTim.date().addDays(1);
262 }
263 }
264 else {
265 epoStr = "0";
266 nextTime.setHMS(0, 0, 0);
267 nextDate = datTim.date().addDays(1);
268 }
269
270 if (nextEpoch) {
271 *nextEpoch = QDateTime(nextDate, nextTime);
272 }
273
274 return epoStr;
275}
276
277// File Name according to RINEX Standards
278////////////////////////////////////////////////////////////////////////////
279void bncRinex::resolveFileName(const QDateTime& datTim) {
280
281 bncSettings settings;
282 QString path = settings.value("rnxPath").toString();
283 expandEnvVar(path);
284
285 if ( path.length() > 0 && path[path.length()-1] != QDir::separator() ) {
286 path += QDir::separator();
287 }
288
289 QString hlpStr = nextEpochStr(datTim, settings.value("rnxIntr").toString(),
290 &_nextCloseEpoch);
291
292 QString ID4 = _statID.left(4);
293
294 // Check name conflict
295 // -------------------
296 QString distStr;
297 int num = 0;
298 QListIterator<QString> it(settings.value("mountPoints").toStringList());
299 while (it.hasNext()) {
300 QString mp = it.next();
301 if (mp.indexOf(ID4) != -1) {
302 ++num;
303 }
304 }
305 if (num > 1) {
306 distStr = "_" + _statID.mid(4);
307 }
308
309 QString sklExt = settings.value("rnxSkel").toString();
310 if (!sklExt.isEmpty()) {
311 _sklName = path + ID4 + distStr + "." + sklExt;
312 }
313
314 path += ID4 +
315 QString("%1").arg(datTim.date().dayOfYear(), 3, 10, QChar('0')) +
316 hlpStr + distStr + datTim.toString(".yyO");
317
318 _fName = path.toAscii();
319}
320
321// Write RINEX Header
322////////////////////////////////////////////////////////////////////////////
323void bncRinex::writeHeader(const QByteArray& format, const bncTime& firstObsTime) {
324
325 bncSettings settings;
326
327 // Open the Output File
328 // --------------------
329 QDateTime datTimNom = dateAndTimeFromGPSweek(firstObsTime.gpsw(),
330 floor(firstObsTime.gpssec()+0.5));
331 resolveFileName(datTimNom);
332
333 // Append to existing file and return
334 // ----------------------------------
335 if ( QFile::exists(_fName) &&
336 (_reconnectFlag || Qt::CheckState(settings.value("rnxAppend").toInt()) == Qt::Checked) ) {
337 _out.open(_fName.data(), ios::app);
338 _out.setf(ios::showpoint | ios::fixed);
339 _headerWritten = true;
340 _reconnectFlag = false;
341 }
342 else {
343 _out.open(_fName.data());
344 }
345
346 _out.setf(ios::showpoint | ios::fixed);
347
348 // Set RINEX Version
349 // -----------------
350 int intHeaderVers = (Qt::CheckState(settings.value("rnxV3").toInt()) == Qt::Checked ? 3 : 2);
351
352 // Read Skeleton Header
353 // --------------------
354 if (readSkeleton()) {
355 _header.set(_sklHeader, intHeaderVers);
356 }
357 else {
358 _header.setDefault(_statID, intHeaderVers);
359 }
360
361 // A Few Additional Comments
362 // -------------------------
363 _addComments << format.left(6) + " " + _mountPoint.host() + _mountPoint.path();
364 if (_nmea == "yes") {
365 _addComments << "NMEA LAT=" + _latitude + " " + "LONG=" + _longitude;
366 }
367
368 // Write the Header
369 // ----------------
370 QByteArray headerLines;
371 QTextStream outHlp(&headerLines);
372
373 QMap<QString, QString> txtMap;
374 txtMap["COMMENT"] = _addComments.join("\\n");
375
376 _header.setStartTime(firstObsTime);
377 _header.write(&outHlp, &txtMap);
378
379 outHlp.flush();
380
381 if (!_headerWritten) {
382 _out << headerLines.data();
383 }
384
385 _headerWritten = true;
386}
387
388// Stores Observation into Internal Array
389////////////////////////////////////////////////////////////////////////////
390void bncRinex::deepCopy(t_satObs obs) {
391 _obs.push_back(obs);
392}
393
394// Write One Epoch into the RINEX File
395////////////////////////////////////////////////////////////////////////////
396void bncRinex::dumpEpoch(const QByteArray& format, const bncTime& maxTime) {
397
398 // Select observations older than maxTime
399 // --------------------------------------
400 QList<t_satObs> obsList;
401 QMutableListIterator<t_satObs> mIt(_obs);
402 while (mIt.hasNext()) {
403 t_satObs obs = mIt.next();
404 if (obs._time < maxTime) {
405 obsList.push_back(obs);
406 mIt.remove();
407 }
408 }
409
410 // Easy Return
411 // -----------
412 if (obsList.isEmpty()) {
413 return;
414 }
415
416 // Time of Epoch
417 // -------------
418 const t_satObs& fObs = obsList.first();
419 QDateTime datTimNom = dateAndTimeFromGPSweek(fObs._time.gpsw(), floor(fObs._time.gpssec()+0.5));
420
421 // Close the file
422 // --------------
423 if (_nextCloseEpoch.isValid() && datTimNom >= _nextCloseEpoch) {
424 closeFile();
425 _headerWritten = false;
426 }
427
428 // Write RINEX Header
429 // ------------------
430 if (!_headerWritten) {
431 writeHeader(format, fObs._time);
432 }
433
434 // Prepare structure t_rnxEpo
435 // --------------------------
436 t_rnxObsFile::t_rnxEpo rnxEpo;
437 rnxEpo.tt = fObs._time;
438
439 QListIterator<t_satObs> it(obsList);
440 while (it.hasNext()) {
441 const t_satObs& satObs = it.next();
442 t_rnxObsFile::t_rnxSat rnxSat;
443 rnxSat.prn = satObs._prn;
444
445 // Initialize all observations mentioned in skeleton header
446 // --------------------------------------------------------
447 char sys = rnxSat.prn.system();
448 for (int iType = 0; iType < _sklHeader.nTypes(sys); iType++) {
449 QString type = _sklHeader.obsType(sys, iType);
450 t_rnxObsFile::t_rnxObs rnxObs; // create an empty observation
451 rnxSat.obs[type] = rnxObs;
452 }
453
454 for (unsigned ii = 0; ii < satObs._obs.size(); ii++) {
455 const t_frqObs* frqObs = satObs._obs[ii];
456 if (frqObs->_codeValid) {
457 QString type = 'C' + QString(frqObs->_rnxType2ch.c_str());
458 t_rnxObsFile::t_rnxObs rnxObs;
459 rnxObs.value = frqObs->_code;
460 rnxSat.obs[type] = rnxObs;
461 }
462 if (frqObs->_phaseValid) {
463 QString type = 'L' + QString(frqObs->_rnxType2ch.c_str());
464 t_rnxObsFile::t_rnxObs rnxObs;
465 rnxObs.value = frqObs->_phase;
466 if (frqObs->_slip) {
467 rnxObs.lli |= 1;
468 }
469 rnxSat.obs[type] = rnxObs;
470 }
471 if (frqObs->_dopplerValid) {
472 QString type = 'D' + QString(frqObs->_rnxType2ch.c_str());
473 t_rnxObsFile::t_rnxObs rnxObs;
474 rnxObs.value = frqObs->_doppler;
475 rnxSat.obs[type] = rnxObs;
476 }
477 if (frqObs->_snrValid) {
478 QString type = 'S' + QString(frqObs->_rnxType2ch.c_str());
479 t_rnxObsFile::t_rnxObs rnxObs;
480 rnxObs.value = frqObs->_snr;
481 rnxSat.obs[type] = rnxObs;
482 }
483 }
484
485
486 rnxEpo.rnxSat.push_back(rnxSat);
487 }
488
489 // Write the epoch
490 // ---------------
491 QByteArray outLines;
492 QTextStream outStream(&outLines);
493 t_rnxObsFile::writeEpoch(&outStream, _header, &rnxEpo);
494
495 _out << outLines.data();
496 _out.flush();
497}
498
499// Close the Old RINEX File
500////////////////////////////////////////////////////////////////////////////
501void bncRinex::closeFile() {
502 if (_header.version() == 3) {
503 _out << "> 4 1" << endl;
504 _out << "END OF FILE" << endl;
505 }
506 _out.close();
507 if (!_rnxScriptName.isEmpty()) {
508 qApp->thread()->wait(100);
509#ifdef WIN32
510 QProcess::startDetached(_rnxScriptName, QStringList() << _fName) ;
511#else
512 QProcess::startDetached("nohup", QStringList() << _rnxScriptName << _fName) ;
513#endif
514
515 }
516}
517
518// One Line in ASCII (Internal) Format
519////////////////////////////////////////////////////////////////////////////
520string bncRinex::asciiSatLine(const t_satObs& obs) {
521
522 ostringstream str;
523 str.setf(ios::showpoint | ios::fixed);
524
525 str << obs._prn.toString() << ' ';
526
527 for (unsigned ii = 0; ii < obs._obs.size(); ii++) {
528 const t_frqObs* frqObs = obs._obs[ii];
529 if (frqObs->_codeValid) {
530 str << " C" << frqObs->_rnxType2ch << ' '
531 << setw(14) << setprecision(3) << frqObs->_code;
532 }
533 if (frqObs->_phaseValid) {
534 str << " L" << frqObs->_rnxType2ch << ' '
535 << setw(14) << setprecision(3) << frqObs->_phase
536 << ' ' << setw(3) << frqObs->_slipCounter;
537 }
538 if (frqObs->_dopplerValid) {
539 str << " D" << frqObs->_rnxType2ch << ' '
540 << setw(14) << setprecision(3) << frqObs->_doppler;
541 }
542 if (frqObs->_snrValid) {
543 str << " S" << frqObs->_rnxType2ch << ' '
544 << setw(8) << setprecision(3) << frqObs->_snr;
545 }
546 }
547
548 return str.str();
549}
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