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: bncNetQuery
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6 | *
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7 | * Purpose: Blocking Network Requests
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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 <iostream>
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18 | #include <iomanip>
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19 |
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20 | #include "bncnetquery.h"
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21 | #include "bncapp.h"
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22 |
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23 | using namespace std;
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24 |
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25 | #define BNCVERSION "1.7"
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26 |
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27 | // Constructor
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28 | ////////////////////////////////////////////////////////////////////////////
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29 | bncNetQuery::bncNetQuery() {
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30 |
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31 | connect(this, SIGNAL(newMessage(QByteArray,bool)),
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32 | (bncApp*) qApp, SLOT(slotMessage(const QByteArray,bool)));
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33 |
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34 | _manager = new QNetworkAccessManager(this);
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35 | _reply = 0;
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36 | _eventLoop = new QEventLoop(this);
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37 | }
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38 |
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39 | // Destructor
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40 | ////////////////////////////////////////////////////////////////////////////
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41 | bncNetQuery::~bncNetQuery() {
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42 | delete _eventLoop;
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43 | delete _reply;
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44 | delete _manager;
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45 | }
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46 |
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47 | // Error
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48 | ////////////////////////////////////////////////////////////////////////////
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49 | void bncNetQuery::slotError(QNetworkReply::NetworkError) {
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50 | cout << "slotError " << endl;
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51 | emit newMessage("slotError " + _reply->errorString().toAscii(), true);
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52 | _eventLoop->quit();
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53 | }
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54 |
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55 | void bncNetQuery::slotFinished() {
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56 | cout << "slotFinished" << endl;
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57 | }
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58 |
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59 | void bncNetQuery::slotReadyRead() {
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60 | cout << "slotReadyRead" << endl;
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61 | }
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62 |
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63 | // Start request, block till the next read (public)
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64 | ////////////////////////////////////////////////////////////////////////////
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65 | t_irc bncNetQuery::startRequest(const QUrl& url) {
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66 | return startRequest(url, true);
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67 | }
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68 |
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69 | // Start request
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70 | ////////////////////////////////////////////////////////////////////////////
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71 | t_irc bncNetQuery::startRequest(const QUrl& url, bool full) {
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72 |
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73 | // Default scheme and path
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74 | // -----------------------
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75 | QUrl urlLoc(url);
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76 | if (urlLoc.scheme().isEmpty()) {
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77 | urlLoc.setScheme("http");
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78 | }
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79 | if (urlLoc.path().isEmpty()) {
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80 | urlLoc.setPath("/");
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81 | }
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82 |
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83 | // Network Request
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84 | // ---------------
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85 | QNetworkRequest request;
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86 | request.setUrl(urlLoc);
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87 | request.setRawHeader("Host" , urlLoc.host().toAscii());
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88 | request.setRawHeader("Ntrip-Version", "NTRIP/2.0");
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89 | request.setRawHeader("User-Agent" , "NTRIP BNC/1.7");
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90 | if (!urlLoc.userName().isEmpty()) {
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91 | request.setRawHeader("Authorization", "Basic " +
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92 | (urlLoc.userName() + ":" + urlLoc.password()).toAscii().toBase64());
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93 | }
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94 | request.setRawHeader("Connection" , "close");
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95 |
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96 | _reply = _manager->get(request);
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97 |
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98 | // Connect Signals
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99 | // ---------------
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100 | connect(_reply, SIGNAL(finished()), this, SLOT(slotFinished()));
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101 | connect(_reply, SIGNAL(readyRead()), this, SLOT(slotReadyRead()));
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102 |
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103 | connect(_reply, SIGNAL(finished()), _eventLoop, SLOT(quit()));
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104 | if (!full) {
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105 | connect(_reply, SIGNAL(readyRead()), _eventLoop, SLOT(quit()));
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106 | }
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107 | connect(_reply, SIGNAL(error(QNetworkReply::NetworkError)),
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108 | this, SLOT(slotError(QNetworkReply::NetworkError)));
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109 |
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110 | return success;
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111 | }
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112 |
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113 | // Start Request, wait for its completion
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114 | ////////////////////////////////////////////////////////////////////////////
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115 | t_irc bncNetQuery::waitForRequestResult(const QUrl& url, QByteArray& outData) {
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116 |
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117 | // Send Request
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118 | // ------------
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119 | if (startRequest(url) != success) {
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120 | return failure;
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121 | }
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122 |
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123 | // Wait Loop
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124 | // ---------
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125 | _eventLoop->exec();
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126 |
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127 | // Copy Data and Return
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128 | // --------------------
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129 | outData = _reply->readAll();
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130 |
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131 | if (_reply->error() == QNetworkReply::NoError) {
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132 | return success;
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133 | }
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134 | else {
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135 | return failure;
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136 | }
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137 | }
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138 |
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139 | // Wait for next data
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140 | ////////////////////////////////////////////////////////////////////////////
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141 | t_irc bncNetQuery::waitForReadyRead(QByteArray& outData) {
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142 |
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143 | // Wait Loop
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144 | // ---------
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145 | if (!_reply->bytesAvailable()) {
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146 | _eventLoop->exec();
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147 | }
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148 |
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149 | // Append Data and Return
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150 | // -----------------------
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151 | outData.append(_reply->readAll());
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152 |
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153 | if (_reply->error() == QNetworkReply::NoError) {
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154 | return success;
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155 | }
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156 | else {
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157 | return failure;
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158 | }
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159 | }
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