1 | /* -------------------------------------------------------------------------
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2 | * BKG NTRIP Server
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3 | * -------------------------------------------------------------------------
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4 | *
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5 | * Class: bncUploadCaster
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6 | *
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7 | * Purpose: Connection to NTRIP Caster
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8 | *
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9 | * Author: L. Mervart
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10 | *
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11 | * Created: 29-Mar-2011
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12 | *
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13 | * Changes:
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14 | *
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15 | * -----------------------------------------------------------------------*/
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16 |
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17 | #include <math.h>
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18 | #include "bncuploadcaster.h"
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19 | #include "bncversion.h"
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20 | #include "bnccore.h"
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21 | #include "bnctableitem.h"
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22 | #include "bncsettings.h"
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23 | #include "bncsslconfig.h"
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24 |
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25 | using namespace std;
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26 |
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27 | // Constructor
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28 | ////////////////////////////////////////////////////////////////////////////
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29 | bncUploadCaster::bncUploadCaster(const QString &mountpoint,
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30 | const QString &outHost, int outPort, const QString &ntripVersion,
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31 | const QString &userName, const QString &password, int iRow, int rate) {
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32 | bncSettings settings;
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33 |
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34 | _mountpoint = mountpoint;
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35 | _casterOutHost = outHost;
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36 | _casterOutPort = outPort;
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37 | _ntripVersion = ntripVersion;
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38 | _userName = userName;
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39 | _password = password;
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40 | _outSocket = 0;
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41 | _sOpenTrial = 0;
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42 | _iRow = iRow;
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43 | _rate = rate;
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44 |
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45 | if (_rate < 0) {
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46 | _rate = 0;
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47 | } else if (_rate > 60) {
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48 | _rate = 60;
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49 | }
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50 | _isToBeDeleted = false;
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51 |
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52 | connect(this, SIGNAL(newMessage(QByteArray,bool)),
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53 | BNC_CORE, SLOT(slotMessage(const QByteArray,bool)));
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54 |
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55 | if (BNC_CORE->_uploadTableItems.find(_iRow)
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56 | != BNC_CORE->_uploadTableItems.end()) {
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57 | connect(this, SIGNAL(newBytes(QByteArray,double)),
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58 | BNC_CORE->_uploadTableItems.value(iRow),
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59 | SLOT(slotNewBytes(const QByteArray,double)));
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60 | }
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61 | if (BNC_CORE->_uploadEphTableItems.find(_iRow)
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62 | != BNC_CORE->_uploadEphTableItems.end()) {
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63 | connect(this, SIGNAL(newBytes(QByteArray,double)),
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64 | BNC_CORE->_uploadEphTableItems.value(iRow),
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65 | SLOT(slotNewBytes(const QByteArray,double)));
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66 | }
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67 |
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68 | _sslIgnoreErrors = (Qt::CheckState(settings.value("sslIgnoreErrors").toInt())
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69 | == Qt::Checked);
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70 |
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71 | _proxyOutHost = settings.value("proxyHost").toString();
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72 | _proxyOutPort = settings.value("proxyPort").toInt();
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73 | (_proxyOutHost.isEmpty()) ? _proxy = false : _proxy = true;
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74 |
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75 | _secure = false;
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76 | if (_ntripVersion == "2s") {
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77 | if (!QSslSocket::supportsSsl()) {
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78 | emit(newMessage(
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79 | "For SSL support please install OpenSSL run-time libraries: Ntrip Version 2 is tried",
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80 | true));
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81 | _ntripVersion == "2";
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82 | } else {
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83 | _secure = true;
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84 | _casterOutPort = 443;
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85 | }
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86 | }
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87 |
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88 | if (!_secure && _proxy) {
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89 | _postExtension = QString("http://%1:%2").arg(_casterOutHost).arg(_casterOutPort);
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90 | } else {
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91 | _postExtension = "";
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92 | }
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93 | }
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94 |
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95 | // Safe Desctructor
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96 | ////////////////////////////////////////////////////////////////////////////
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97 | void bncUploadCaster::deleteSafely() {
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98 | _isToBeDeleted = true;
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99 | if (!isRunning()) {
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100 | delete this;
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101 | }
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102 | }
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103 |
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104 | // Destructor
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105 | ////////////////////////////////////////////////////////////////////////////
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106 | bncUploadCaster::~bncUploadCaster() {
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107 | if (isRunning()) {
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108 | wait();
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109 | }
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110 | if (_outSocket) {
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111 | delete _outSocket;
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112 | }
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113 | }
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114 |
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115 | //
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116 | ////////////////////////////////////////////////////////////////////////////
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117 | void bncUploadCaster::slotProxyAuthenticationRequired(const QNetworkProxy&,
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118 | QAuthenticator*) {
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119 | emit newMessage("slotProxyAuthenticationRequired", true);
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120 | }
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121 |
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122 | // TSL/SSL
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123 | ////////////////////////////////////////////////////////////////////////////
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124 | void bncUploadCaster::slotSslErrors(QList<QSslError> errors) {
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125 |
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126 | QString msg = "SSL Error\n";
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127 | QSslCertificate cert = _outSocket->sslConfiguration().peerCertificate();
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128 | if (!cert.isNull() &&
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129 | cert.issuerInfo(QSslCertificate::OrganizationalUnitName).count() &&
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130 | cert.issuerInfo(QSslCertificate::Organization).count()) {
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131 |
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132 | msg += QString("Server Certificate Issued by:\n"
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133 | "%1\n%2\nCannot be verified\n")
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134 | #if QT_VERSION >= 0x050000
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135 | .arg(cert.issuerInfo(QSslCertificate::OrganizationalUnitName).at(0))
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136 | .arg(cert.issuerInfo(QSslCertificate::Organization).at(0));
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137 | #else
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138 | .arg(cert.issuerInfo(QSslCertificate::OrganizationalUnitName))
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139 | .arg(cert.issuerInfo(QSslCertificate::Organization));
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140 | #endif
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141 | }
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142 |
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143 | QListIterator<QSslError> it(errors);
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144 | while (it.hasNext()) {
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145 | const QSslError& err = it.next();
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146 | msg += "\n" + err.errorString();
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147 | }
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148 | emit(newMessage(msg.toLatin1(), true));
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149 |
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150 | if (_sslIgnoreErrors) { cout << "_sslIgnoreErrors" << endl;
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151 | if (_outSocket) {cout << "no Socket" << endl;
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152 | _outSocket->ignoreSslErrors();
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153 | } else {
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154 | cout << "no Socket" << endl;
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155 | }
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156 | } else {
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157 | delete _outSocket;
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158 | _outSocket = 0;
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159 | }
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160 | }
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161 |
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162 |
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163 | // Endless Loop
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164 | ////////////////////////////////////////////////////////////////////////////
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165 | void bncUploadCaster::run() {
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166 | while (true) {
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167 | if (_isToBeDeleted) {
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168 | QThread::quit();
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169 | deleteLater();
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170 | return;
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171 | }
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172 | open();
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173 | if (_outSocket && _outSocket->state() == QAbstractSocket::ConnectedState) {
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174 | QMutexLocker locker(&_mutex);
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175 | if (_outBuffer.size() > 0) {
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176 | if (_ntripVersion == "1") {
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177 | _outSocket->write(_outBuffer);
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178 | _outSocket->flush();
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179 | } else {
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180 | QString chunkSize = QString("%1").arg(_outBuffer.size(), 0, 16,
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181 | QLatin1Char('0'));
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182 | QByteArray chunkedData = chunkSize.toLatin1() + "\r\n" + _outBuffer
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183 | + "\r\n";
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184 | _outSocket->write(chunkedData);
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185 | _outSocket->flush();
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186 | }
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187 | emit newBytes(_mountpoint.toLatin1(), _outBuffer.size());
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188 | }
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189 | }
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190 | if (_rate == 0) {
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191 | {
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192 | QMutexLocker locker(&_mutex);
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193 | _outBuffer.clear();
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194 | }
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195 | msleep(100); //sleep 0.1 sec
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196 | } else {
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197 | sleep(_rate);
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198 | }
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199 | }
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200 | }
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201 |
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202 | // Start the Communication with NTRIP Caster
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203 | ////////////////////////////////////////////////////////////////////////////
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204 | void bncUploadCaster::open() {
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205 | const int timeOut = 5000; // 5 seconds
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206 | bncSslConfig sslConfig;
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207 | QByteArray msg;
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208 |
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209 |
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210 | if (_mountpoint.isEmpty()) {
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211 | return;
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212 | }
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213 |
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214 | if (_outSocket != 0) {
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215 | if (_outSocket->state() == QAbstractSocket::ConnectedState) {
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216 | return;
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217 | } else {
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218 | emit(newMessage(
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219 | "Broadcaster: No connection for " + _mountpoint.toLatin1(), true));
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220 | }
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221 | }
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222 | delete _outSocket;
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223 | _outSocket = 0;
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224 |
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225 | double minDt = pow(2.0, _sOpenTrial);
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226 | if (++_sOpenTrial > 4) {
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227 | _sOpenTrial = 4;
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228 | }
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229 | if (_outSocketOpenTime.isValid()
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230 | && _outSocketOpenTime.secsTo(QDateTime::currentDateTime()) < minDt) {
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231 | return;
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232 | } else {
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233 | _outSocketOpenTime = QDateTime::currentDateTime();
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234 | }
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235 |
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236 | _outSocket = new QSslSocket();
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237 |
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238 | _outSocket->setSslConfiguration(sslConfig);
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239 | _outSocket->setProxy(QNetworkProxy::NoProxy);
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240 |
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241 | if (_proxy) {
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242 | if (_ntripVersion == "1") {
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243 | emit(newMessage("No proxy support in Ntrip Version 1 upload!", true));
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244 | delete _outSocket;
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245 | _outSocket = 0;
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246 | return;
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247 | }
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248 | connect(_outSocket, SIGNAL(proxyAuthenticationRequired(const QNetworkProxy&, QAuthenticator*)),
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249 | this,SLOT(slotProxyAuthenticationRequired(const QNetworkProxy&, QAuthenticator*)));
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250 |
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251 | if (!connectToHost(_proxyOutHost, _proxyOutPort, false)) {
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252 | return;
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253 | }
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254 |
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255 | if (_secure) {
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256 | msg = "CONNECT " + _casterOutHost.toLatin1() + ":"
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257 | + QString("%1").arg(_casterOutPort).toLatin1() + " HTTP/1.1\r\n"
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258 | + "Proxy-Connection: Keep-Alive\r\n"
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259 | + "Host: " + _casterOutHost.toLatin1() + "\r\n"
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260 | + "User-Agent: NTRIP BNC/" BNCVERSION " (" + BNC_OS + ")\r\n"
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261 | + "\r\n"; cout << msg.toStdString().c_str();
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262 | _outSocket->write(msg);
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263 | _outSocket->waitForBytesWritten();
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264 | _outSocket->waitForReadyRead();
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265 | QByteArray ans = _outSocket->readLine(); cout << ans.toStdString().c_str() << endl;
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266 | if (ans.indexOf("200") == -1) {
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267 | emit(newMessage(
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268 | "Proxy: Connection broken for " + _mountpoint.toLatin1()
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269 | + ": " + ans.left(ans.length() - 2), true));
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270 | delete _outSocket;
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271 | _outSocket = 0;
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272 | return;
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273 | } else {
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274 | emit(newMessage(
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275 | "Proxy: Connection opened for " + _mountpoint.toLatin1()
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276 | + ": " + ans.left(ans.length() - 2), true));
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277 | _sOpenTrial = 0;
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278 | _outSocket->setPeerVerifyName(_casterOutHost);
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279 | _outSocket->startClientEncryption();
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280 | if (!_outSocket->waitForEncrypted(timeOut)) {
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281 | emit(newMessage(
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282 | "Proxy: Encrypt timeout for " + _mountpoint.toLatin1() + " ("
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283 | + _casterOutHost.toLatin1() + ":"
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284 | + QString("%1) ").arg(_casterOutPort).toLatin1()
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285 | + _outSocket->errorString().toLatin1(), true));
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286 | delete _outSocket;
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287 | _outSocket = 0;
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288 | return;
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289 | } else {
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290 | emit(newMessage("Proxy: SSL handshake completed for " + _mountpoint.toLatin1(), true));
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291 | }
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292 | }
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293 | }
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294 | } else {
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295 | if (!connectToHost(_casterOutHost, _casterOutPort, _secure)) {
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296 | return;
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297 | }
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298 | }
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299 |
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300 | connect(_outSocket, SIGNAL(sslErrors(QList<QSslError>)), this, SLOT(slotSslErrors(QList<QSslError>)));
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301 |
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302 | if (_ntripVersion == "1") {
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303 | msg = "SOURCE " + _password.toLatin1() + " /" + _mountpoint.toLatin1()
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304 | + "\r\n" + "Source-Agent: NTRIP BNC/" BNCVERSION "\r\n\r\n";
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305 | } else {
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306 | msg = "POST " + _postExtension.toLatin1() + "/" + _mountpoint.toLatin1()
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307 | + " HTTP/1.1\r\n" + "Host: " + _casterOutHost.toLatin1() + "\r\n"
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308 | + "Ntrip-Version: Ntrip/2.0\r\n" + "Authorization: Basic "
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309 | + (_userName + ":" + _password).toLatin1().toBase64() + "\r\n"
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310 | + "User-Agent: NTRIP BNC/" BNCVERSION " (" + BNC_OS + ")\r\n"
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311 | + "Connection: close\r\n" + "Transfer-Encoding: chunked\r\n\r\n";
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312 | }
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313 | cout << msg.toStdString().c_str();
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314 | _outSocket->write(msg);
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315 | _outSocket->waitForBytesWritten();
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316 | _outSocket->waitForReadyRead();
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317 |
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318 | QByteArray ans = _outSocket->readLine(); cout << "ans: " << ans.toStdString().c_str() << endl;
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319 |
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320 | if (ans.indexOf("200") == -1) {
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321 | delete _outSocket;
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322 | _outSocket = 0;
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323 | emit(newMessage(
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324 | "Broadcaster: Connection broken for " + _mountpoint.toLatin1() + ": "
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325 | + ans.left(ans.length() - 2), true));
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326 | } else {
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327 | emit(newMessage(
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328 | "Broadcaster: Connection opened for " + _mountpoint.toLatin1() + ": "
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329 | + ans.left(ans.length() - 2), true));
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330 | _sOpenTrial = 0;
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331 | }
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332 | }
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333 |
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334 | // Try connection to NTRIP Caster or Proxy
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335 | ////////////////////////////////////////////////////////////////////////////
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336 | bool bncUploadCaster::connectToHost(QString outHost, int outPort, bool encrypted) {
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337 | const int timeOut = 5000; // 5 seconds
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338 | if (encrypted) {
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339 | _outSocket->connectToHostEncrypted(outHost, outPort);
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340 | if (!_outSocket->waitForEncrypted(timeOut)) {
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341 | emit(newMessage(
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342 | "Broadcaster: Connect timeout for " + _mountpoint.toLatin1() + " ("
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343 | + outHost.toLatin1() + ":"
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344 | + QString("%1) ").arg(outPort).toLatin1()
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345 | + _outSocket->errorString().toLatin1(), true));
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346 | delete _outSocket;
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347 | _outSocket = 0;
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348 | return false;
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349 | } else {
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350 | emit(newMessage("Broadcaster: SSL handshake completed for " + _mountpoint.toLatin1(), true));
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351 | }
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352 | } else {
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353 | _outSocket->connectToHost(outHost, outPort);
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354 | if (!_outSocket->waitForConnected(timeOut)) {
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355 | emit(newMessage(
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356 | "Broadcaster: Connect timeout for " + _mountpoint.toLatin1() + " ("
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357 | + outHost.toLatin1() + ":"
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358 | + QString("%1) ").arg(outPort).toLatin1()
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359 | + _outSocket->errorString().toLatin1(), true));
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360 | delete _outSocket;
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361 | _outSocket = 0;
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362 | return false;
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363 | }
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364 | }
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365 | return true;
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366 | }
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367 |
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368 |
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369 |
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370 |
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371 |
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372 |
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373 |
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