1 | /* -------------------------------------------------------------------------
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2 | * BKG NTRIP Client
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3 | * -------------------------------------------------------------------------
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4 | *
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5 | * Class: bncNetQueryV2
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6 | *
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7 | * Purpose: Blocking Network Requests (NTRIP Version 2)
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8 | *
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9 | * Author: L. Mervart
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10 | *
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11 | * Created: 27-Dec-2008
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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 "bncnetqueryv2.h"
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18 |
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19 | #define BNCVERSION "1.7"
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20 |
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21 | // Constructor
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22 | ////////////////////////////////////////////////////////////////////////////
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23 | bncNetQueryV2::bncNetQueryV2() {
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24 | _manager = new QNetworkAccessManager(this);
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25 | _reply = 0;
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26 | _eventLoop = new QEventLoop(this);
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27 |
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28 | _status = init;
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29 | }
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30 |
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31 | // Destructor
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32 | ////////////////////////////////////////////////////////////////////////////
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33 | bncNetQueryV2::~bncNetQueryV2() {
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34 | delete _eventLoop;
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35 | delete _reply;
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36 | delete _manager;
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37 | }
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38 |
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39 | // Stop (quit even loop)
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40 | ////////////////////////////////////////////////////////////////////////////
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41 | void bncNetQueryV2::stop() {
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42 | if (_reply) {
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43 | _reply->disconnect(SIGNAL(error(QNetworkReply::NetworkError)));
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44 | _reply->abort();
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45 | }
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46 | _eventLoop->quit();
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47 | _status = finished;
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48 | }
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49 |
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50 | // Error
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51 | ////////////////////////////////////////////////////////////////////////////
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52 | void bncNetQueryV2::slotError(QNetworkReply::NetworkError) {
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53 | _status = error;
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54 | emit newMessage(_reply->errorString().toAscii(), true);
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55 | _eventLoop->quit();
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56 | }
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57 |
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58 | // End of Request
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59 | ////////////////////////////////////////////////////////////////////////////
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60 | void bncNetQueryV2::slotFinished() {
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61 | if (_status != error) {
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62 | _status = finished;
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63 | }
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64 | }
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65 |
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66 | // Start request, block till the next read
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67 | ////////////////////////////////////////////////////////////////////////////
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68 | void bncNetQueryV2::startRequest(const QUrl& url, const QByteArray& gga) {
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69 | startRequestPrivate(url, gga, false);
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70 | }
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71 |
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72 | // Start Request (Private Method)
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73 | ////////////////////////////////////////////////////////////////////////////
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74 | void bncNetQueryV2::startRequestPrivate(const QUrl& url, const QByteArray& gga,
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75 | bool full) {
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76 |
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77 | _status = running;
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78 |
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79 | // Default scheme and path
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80 | // -----------------------
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81 | QUrl urlLoc(url);
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82 | if (urlLoc.scheme().isEmpty()) {
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83 | urlLoc.setScheme("http");
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84 | }
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85 | if (urlLoc.path().isEmpty()) {
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86 | urlLoc.setPath("/");
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87 | }
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88 |
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89 | // Proxy Settings
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90 | // --------------
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91 | QSettings settings;
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92 | QString proxyHost = settings.value("proxyHost").toString();
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93 | int proxyPort = settings.value("proxyPort").toInt();
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94 |
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95 | if (!proxyHost.isEmpty()) {
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96 | QNetworkProxy proxy(QNetworkProxy::HttpProxy, proxyHost, proxyPort);
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97 | _manager->setProxy(proxy);
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98 | }
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99 |
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100 | // Network Request
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101 | // ---------------
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102 | QNetworkRequest request;
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103 | request.setUrl(urlLoc);
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104 | request.setRawHeader("Host" , urlLoc.host().toAscii());
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105 | request.setRawHeader("Ntrip-Version", "NTRIP/2.0");
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106 | request.setRawHeader("User-Agent" , "NTRIP BNC/1.7");
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107 | if (!urlLoc.userName().isEmpty()) {
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108 | request.setRawHeader("Authorization", "Basic " +
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109 | (urlLoc.userName() + ":" + urlLoc.password()).toAscii().toBase64());
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110 | }
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111 | if (!gga.isEmpty()) {
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112 | request.setRawHeader("Ntrip-GGA", gga);
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113 | }
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114 | request.setRawHeader("Connection" , "close");
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115 |
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116 | _reply = _manager->get(request);
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117 |
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118 | // Connect Signals
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119 | // ---------------
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120 | connect(_reply, SIGNAL(finished()), this, SLOT(slotFinished()));
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121 | connect(_reply, SIGNAL(finished()), _eventLoop, SLOT(quit()));
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122 | if (!full) {
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123 | connect(_reply, SIGNAL(readyRead()), _eventLoop, SLOT(quit()));
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124 | }
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125 | connect(_reply, SIGNAL(error(QNetworkReply::NetworkError)),
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126 | this, SLOT(slotError(QNetworkReply::NetworkError)));
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127 | }
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128 |
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129 | // Start Request, wait for its completion
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130 | ////////////////////////////////////////////////////////////////////////////
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131 | void bncNetQueryV2::waitForRequestResult(const QUrl& url, QByteArray& outData) {
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132 |
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133 | // Send Request
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134 | // ------------
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135 | startRequestPrivate(url, "", true);
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136 |
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137 | // Wait Loop
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138 | // ---------
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139 | _eventLoop->exec();
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140 |
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141 | // Copy Data and Return
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142 | // --------------------
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143 | outData = _reply->readAll();
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144 | }
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145 |
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146 | // Wait for next data
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147 | ////////////////////////////////////////////////////////////////////////////
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148 | void bncNetQueryV2::waitForReadyRead(QByteArray& outData) {
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149 |
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150 | // Wait Loop
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151 | // ---------
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152 | if (!_reply->bytesAvailable()) {
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153 | _eventLoop->exec();
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154 | }
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155 |
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156 | // Append Data
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157 | // -----------
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158 | outData.append(_reply->readAll());
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159 | }
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