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 <iostream>
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18 |
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19 | #include "bncnetqueryv2.h"
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20 | #include "bncsettings.h"
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21 | #include "bncversion.h"
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22 | #include "bncsslconfig.h"
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23 |
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24 | // Constructor
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25 | ////////////////////////////////////////////////////////////////////////////
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26 | bncNetQueryV2::bncNetQueryV2(bool secure) {
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27 | _secure = secure;
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28 | _manager = new QNetworkAccessManager(this);
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29 | connect(_manager, SIGNAL(proxyAuthenticationRequired(const QNetworkProxy&,
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30 | QAuthenticator*)),
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31 | this, SLOT(slotProxyAuthenticationRequired(const QNetworkProxy&,
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32 | QAuthenticator*)));
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33 | _reply = 0;
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34 | _eventLoop = new QEventLoop(this);
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35 | _firstData = true;
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36 | _status = init;
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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 | bncNetQueryV2::~bncNetQueryV2() {
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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 | // Stop (quit event loop)
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48 | ////////////////////////////////////////////////////////////////////////////
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49 | void bncNetQueryV2::stop() {
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50 | if (_reply) {
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51 | _reply->abort();
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52 | }
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53 | _eventLoop->quit();
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54 | _status = finished;
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55 | }
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56 |
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57 | // End of Request
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58 | ////////////////////////////////////////////////////////////////////////////
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59 | void bncNetQueryV2::slotFinished() {
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60 | _eventLoop->quit();
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61 | if (_reply && _reply->error() != QNetworkReply::NoError) {
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62 | _status = error;
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63 | emit newMessage(_url.path().toAscii().replace(0,1,"") +
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64 | ": NetQueryV2: server replied: " +
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65 | _reply->attribute(QNetworkRequest::HttpReasonPhraseAttribute).toByteArray(),
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66 | true);
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67 | }
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68 | else {
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69 | _status = finished;
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70 | }
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71 | }
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72 |
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73 | //
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74 | ////////////////////////////////////////////////////////////////////////////
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75 | void bncNetQueryV2::slotProxyAuthenticationRequired(const QNetworkProxy&,
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76 | QAuthenticator*) {
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77 | emit newMessage("slotProxyAuthenticationRequired", true);
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78 | }
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79 |
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80 | // Start request, block till the next read
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81 | ////////////////////////////////////////////////////////////////////////////
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82 | void bncNetQueryV2::startRequest(const QUrl& url, const QByteArray& gga) {
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83 | startRequestPrivate(url, gga, false);
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84 | }
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85 |
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86 | // Start Request (Private Method)
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87 | ////////////////////////////////////////////////////////////////////////////
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88 | void bncNetQueryV2::startRequestPrivate(const QUrl& url, const QByteArray& gga,
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89 | bool full) {
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90 |
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91 | _status = running;
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92 |
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93 | // Default scheme and path
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94 | // -----------------------
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95 | _url = url;
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96 | if (_url.scheme().isEmpty()) {
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97 | if (_secure) {
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98 | _url.setScheme("https");
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99 | }
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100 | else {
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101 | _url.setScheme("http");
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102 | }
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103 | }
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104 | if (_url.path().isEmpty()) {
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105 | _url.setPath("/");
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106 | }
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107 |
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108 | // Proxy Settings
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109 | // --------------
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110 | bncSettings settings;
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111 | QString proxyHost = settings.value("proxyHost").toString();
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112 | int proxyPort = settings.value("proxyPort").toInt();
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113 |
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114 | if (!proxyHost.isEmpty()) {
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115 | QNetworkProxy proxy(QNetworkProxy::HttpProxy, proxyHost, proxyPort);
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116 | _manager->setProxy(proxy);
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117 | }
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118 |
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119 | // Network Request
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120 | // ---------------
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121 | QNetworkRequest request;
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122 | request.setSslConfiguration(bncSslConfig::Instance());
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123 | request.setUrl(_url);
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124 | request.setRawHeader("Host" , _url.host().toAscii());
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125 | request.setRawHeader("Ntrip-Version", "Ntrip/2.0");
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126 | request.setRawHeader("User-Agent" , "NTRIP BNC/"BNCVERSION);
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127 | if (!_url.userName().isEmpty()) {
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128 | QString uName = QUrl::fromPercentEncoding(_url.userName().toAscii());
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129 | QString passW = QUrl::fromPercentEncoding(_url.password().toAscii());
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130 | request.setRawHeader("Authorization", "Basic " +
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131 | (uName + ":" + passW).toAscii().toBase64());
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132 | }
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133 | if (!gga.isEmpty()) {
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134 | request.setRawHeader("Ntrip-GGA", gga);
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135 | }
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136 | request.setRawHeader("Connection" , "close");
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137 |
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138 | delete _reply;
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139 | _reply = _manager->get(request);
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140 |
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141 | // Connect Signals
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142 | // ---------------
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143 | connect(_reply, SIGNAL(finished()), this, SLOT(slotFinished()));
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144 | connect(_reply, SIGNAL(finished()), _eventLoop, SLOT(quit()));
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145 | connect(_reply, SIGNAL(sslErrors(QList<QSslError>)),
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146 | this, SLOT(slotSslErrors(QList<QSslError>)));
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147 | if (!full) {
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148 | connect(_reply, SIGNAL(readyRead()), _eventLoop, SLOT(quit()));
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149 | }
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150 | }
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151 |
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152 | // Start Request, wait for its completion
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153 | ////////////////////////////////////////////////////////////////////////////
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154 | void bncNetQueryV2::waitForRequestResult(const QUrl& url, QByteArray& outData) {
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155 |
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156 | // Send Request
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157 | // ------------
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158 | startRequestPrivate(url, "", true);
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159 |
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160 | // Wait Loop
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161 | // ---------
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162 | _eventLoop->exec();
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163 |
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164 | // Copy Data and Return
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165 | // --------------------
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166 | outData = _reply->readAll();
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167 | }
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168 |
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169 | // Wait for next data
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170 | ////////////////////////////////////////////////////////////////////////////
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171 | void bncNetQueryV2::waitForReadyRead(QByteArray& outData) {
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172 |
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173 | // Wait Loop
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174 | // ---------
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175 | if (!_reply->bytesAvailable()) {
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176 | _eventLoop->exec();
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177 | }
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178 |
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179 | // Check NTRIPv2 error code
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180 | // ------------------------
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181 | if (_reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt() != 200) {
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182 | _reply->abort();
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183 | }
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184 |
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185 | // Append Data
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186 | // -----------
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187 | else {
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188 | outData.append(_reply->readAll());
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189 | }
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190 | }
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191 |
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192 | // TSL/SSL
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193 | ////////////////////////////////////////////////////////////////////////////
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194 | void bncNetQueryV2::slotSslErrors(QList<QSslError> errors) {
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195 |
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196 | QString msg = "SSL Errors";
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197 | QListIterator<QSslError> it(errors);
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198 | while (it.hasNext()) {
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199 | const QSslError& err = it.next();
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200 | msg += "\n" + err.errorString();
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201 | }
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202 | ((bncApp*)qApp)->slotMessage(msg.toAscii(), true);
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203 |
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204 | _reply->ignoreSslErrors();
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205 | }
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