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2 | /* -------------------------------------------------------------------------
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3 | * Bernese NTRIP Client
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4 | * -------------------------------------------------------------------------
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5 | *
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6 | * Class: bncGetThread
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7 | *
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8 | * Purpose: Thread that retrieves data from NTRIP caster
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9 | *
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10 | * Author: L. Mervart
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11 | *
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12 | * Created: 24-Dec-2005
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13 | *
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14 | * Changes:
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15 | *
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16 | * -----------------------------------------------------------------------*/
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17 |
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18 | #include <QFile>
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19 | #include <QTextStream>
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20 | #include <QtNetwork>
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21 |
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22 | #include "bncgetthread.h"
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23 | #include "RTCM/RTCM.h"
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24 |
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25 | using namespace std;
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26 |
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27 | const int timeOut = 30*1000;
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28 |
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29 | // Constructor
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30 | ////////////////////////////////////////////////////////////////////////////
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31 | bncGetThread::bncGetThread(const QString& host, int port,
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32 | const QString& proxyHost, int proxyPort,
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33 | const QByteArray& mountPoint,
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34 | const QByteArray& user,
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35 | const QByteArray& password) {
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36 | _host = host;
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37 | _port = port;
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38 | _proxyHost = proxyHost;
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39 | _proxyPort = proxyPort;
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40 | _mountPoint = mountPoint;
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41 | _user = user;
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42 | _password = password;
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43 | _socket = 0;
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44 | }
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45 |
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46 | // Destructor
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47 | ////////////////////////////////////////////////////////////////////////////
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48 | bncGetThread::~bncGetThread() {
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49 | delete _socket;
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50 | }
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51 |
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52 | // Connect to Caster, send the Request (static)
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53 | ////////////////////////////////////////////////////////////////////////////
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54 | QTcpSocket* bncGetThread::request(const QString& host, int port,
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55 | const QString& proxyHost, int proxyPort,
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56 | const QByteArray& mountPoint,
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57 | const QByteArray& user,
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58 | const QByteArray& password) {
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59 |
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60 | QTcpSocket* socket = new QTcpSocket();
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61 |
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62 | QByteArray l_mountPoint = mountPoint;
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63 |
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64 | if ( proxyHost.isEmpty() ) {
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65 | socket->connectToHost(host, port);
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66 | }
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67 | else {
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68 | socket->connectToHost(proxyHost, proxyPort);
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69 | if (!proxyHost.isEmpty()) {
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70 | QUrl proxyUrl;
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71 | proxyUrl.setScheme("http");
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72 | proxyUrl.setHost(host);
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73 | proxyUrl.setPort(port);
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74 | l_mountPoint = proxyUrl.resolved(QUrl(mountPoint)).toEncoded();
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75 | }
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76 | }
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77 |
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78 | if (!socket->waitForConnected(timeOut)) {
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79 | qWarning("Connect timeout");
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80 | delete socket;
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81 | return 0;
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82 | }
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83 |
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84 | // Send Request
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85 | // ------------
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86 | QByteArray userAndPwd = user + ":" + password;
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87 | QByteArray reqStr = "GET " + l_mountPoint + " HTTP/1.0\r\n"
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88 | "User-Agent: NTRIP BNC 1.0\r\n"
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89 | "Authorization: Basic " + userAndPwd.toBase64() +
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90 | "\r\n\r\n";
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91 |
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92 | qWarning(reqStr);
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93 |
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94 | socket->write(reqStr, reqStr.length());
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95 |
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96 | if (!socket->waitForBytesWritten(timeOut)) {
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97 | qWarning("Write timeout");
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98 | delete socket;
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99 | return 0;
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100 | }
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101 |
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102 | return socket;
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103 | }
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104 |
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105 | // Run
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106 | ////////////////////////////////////////////////////////////////////////////
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107 | void bncGetThread::run() {
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108 |
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109 | // Send the Request
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110 | // ----------------
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111 | _socket = bncGetThread::request(_host, _port, _proxyHost, _proxyPort,
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112 | _mountPoint, _user, _password);
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113 | if (!_socket) {
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114 | return exit(1);
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115 | }
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116 |
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117 | // Read Caster Response
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118 | // --------------------
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119 | _socket->waitForReadyRead(timeOut);
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120 | if (_socket->canReadLine()) {
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121 | QString line = _socket->readLine();
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122 | if (line.indexOf("ICY 200 OK") != 0) {
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123 | qWarning(("Wrong Caster Response:\n" + line).toAscii());
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124 | return exit(1);
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125 | }
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126 | }
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127 | else {
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128 | qWarning("Response Timeout");
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129 | return exit(1);
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130 | }
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131 |
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132 | // Instantiate the filter
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133 | // ----------------------
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134 | GPSDecoder* rtcmFilter;
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135 | rtcmFilter = new RTCM('A',true);
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136 |
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137 | // Read Incoming Data
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138 | // ------------------
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139 | while (true) {
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140 | _socket->waitForReadyRead(timeOut);
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141 | qint64 nBytes = _socket->bytesAvailable();
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142 | if (nBytes > 0) {
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143 | char* data = new char[nBytes];
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144 | _socket->read(data, nBytes);
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145 | rtcmFilter->Decode(data, nBytes);
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146 | delete data;
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147 | for (list<Observation*>::iterator it = rtcmFilter->m_lObsList.begin();
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148 | it != rtcmFilter->m_lObsList.end(); it++) {
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149 | emit newObs(_mountPoint, *it);
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150 | }
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151 | rtcmFilter->m_lObsList.clear();
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152 | }
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153 | else {
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154 | qWarning("Data Timeout");
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155 | return exit(1);
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156 | }
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157 | }
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158 | delete rtcmFilter;
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159 | }
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160 |
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161 | // Exit
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162 | ////////////////////////////////////////////////////////////////////////////
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163 | void bncGetThread::exit(int exitCode) {
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164 | if (exitCode!= 0) {
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165 | emit error(_mountPoint);
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166 | }
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167 | QThread::exit(exitCode);
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168 | }
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