Mercurial > trustbridge

annotate ui/installwrapper.cpp @ 502:e551de11d8b6

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Properly handle the case that the file does not exist. TRUNCATE makes create file fail if the file does not exist but we need TRUNCATE in the case that the file already exists
author Andre Heinecke <aheinecke@intevation.de>
date Mon, 28 Apr 2014 09:18:07 +0000
parents a7163018de2f
children cef732072774
rev   line source
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1 /* Copyright (C) 2014 by Bundesamt für Sicherheit in der Informationstechnik
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2 * Software engineering by Intevation GmbH
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3 *
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4 * This file is Free Software under the GNU GPL (v>=2)
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5 * and comes with ABSOLUTELY NO WARRANTY!
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6 * See LICENSE.txt for details.
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7 */
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8 #include "installwrapper.h"
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9
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10 #include <QFileInfo>
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11 #include <QProcess>
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12 #include <QTemporaryFile>
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13 #include <QApplication>
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14 #include <QDir>
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15 #include <QDebug>
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16
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17 #include "logging.h"
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18
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19 #define INSTALL_TIMEOUT 3600000 /* Wait up to an hour */
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20
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21 InstallWrapper::InstallWrapper(QObject* parent,
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22 const QString& path, const QStringList& choices):
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23 QThread(parent),
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24 mCertListFile(path),
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25 mChoices(choices)
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26 {
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27 }
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28
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29 QFileInfo getCinstProcInfo() {
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30 QFileInfo fi(QCoreApplication::applicationFilePath());
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31 QDir myDir = fi.absoluteDir();
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32 QString instProcName = "cinst";
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33 if (!fi.suffix().isEmpty()) {
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34 instProcName += "." + fi.suffix();
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35 }
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36 return QFileInfo(myDir.absoluteFilePath(instProcName));
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37 }
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38
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39 bool InstallWrapper::writeChoices(QTemporaryFile* choicesFile) const
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40 {
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41 if (!choicesFile->open()) {
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42 return false;
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43 }
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44
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45 foreach (const QString &b64data, mChoices) {
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46 if (choicesFile->write(b64data.toLatin1()) == -1) {
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47 return false;
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48 }
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49 if (choicesFile->write("\n") == -1) {
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50 return false;
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51 }
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52 }
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53
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54 choicesFile->close();
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55
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56 return true;
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57 }
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58
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59 void InstallWrapper::run()
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60 {
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61 /* TODO: We need errorcodes here so that we can see if a user
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62 * cancled the UAC elevation */
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63 QTemporaryFile choicesFile;
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64 QFileInfo cinstProcInfo = getCinstProcInfo();
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65
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66 QString cinstFileName = QDir::toNativeSeparators(
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67 getCinstProcInfo().absoluteFilePath());
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68
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69 if (!cinstProcInfo.isExecutable()) {
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70 emit error(tr("Could not find certificate installation process."));
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71 return;
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72 }
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73
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74 if (!writeChoices(&choicesFile)) {
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75 emit error(tr("Failed to write temporary file."));
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76 return;
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77 }
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78
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79 #ifdef WIN32
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80 /* QProcess on Windows uses CreateProcess but we have to
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81 * use the runas shell command to get the UAC prompt if necessary.
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82 * So we have to handle the process ourself. Starting with
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83 * shell execute also means that we can not have stdout and stderr
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84 * redirection. This is the reason we use command line parameters
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85 * and not a pipe for communication. In debug mode the installer
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86 * also makes use of output debug string. */
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87 DWORD retval = 0;
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88 SHELLEXECUTEINFOW shExecInfo;
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89
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90 memset (&shExecInfo, 0, sizeof(SHELLEXECUTEINFOW));
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91
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92 /* Windows needs each parameter packed in " */
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93 QString parameters = "\"list=" + mCertListFile +
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94 "\" \"choices=" + choicesFile.fileName() + "\"";
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95
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96 shExecInfo.cbSize = sizeof(SHELLEXECUTEINFOW);
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97 shExecInfo.fMask = SEE_MASK_NOCLOSEPROCESS;
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98 shExecInfo.lpVerb = L"runas";
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99 shExecInfo.lpFile = reinterpret_cast<LPCWSTR> (cinstFileName.utf16());
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100 shExecInfo.lpParameters = reinterpret_cast<LPCWSTR> (parameters.utf16());
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101
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102 qDebug() << "Starting process " << cinstFileName <<" params: " << parameters;
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103
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104 if (!ShellExecuteExW(&shExecInfo)) {
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105 char* errmsg = getLastErrorMsg();
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106 QString qerrmsg = QString::fromUtf8(errmsg);
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107 free(errmsg);
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108 emit error(tr("Error executing process: %1").arg(qerrmsg));
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109 return;
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110 }
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111
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112 retval = WaitForSingleObject(shExecInfo.hProcess, INSTALL_TIMEOUT);
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113
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114 if (retval != WAIT_OBJECT_0) {
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115 if (retval == WAIT_FAILED) {
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116 char* errmsg = getLastErrorMsg();
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117 QString qerrmsg = QString::fromUtf8(errmsg);
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118 free(errmsg);
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119 emit error (tr("Error monitoring process: %1").arg(qerrmsg));
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120 return;
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121 } else {
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122 emit error (tr("Certificate installation timed out."));
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123 return;
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124 }
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125 }
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126
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127 if (GetExitCodeProcess(shExecInfo.hProcess, &retval)) {
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128 if (retval == STILL_ACTIVE) {
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129 qDebug() << "Process still running, huh..";
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130 }
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131 } else {
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132 char* errmsg = getLastErrorMsg();
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133 QString qerrmsg = QString::fromUtf8(errmsg);
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134 free(errmsg);
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135 emit error (tr("Failed to check process status: %1").arg(qerrmsg));
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136 CloseHandle(shExecInfo.hProcess);
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137 return;
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138 }
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139 CloseHandle(shExecInfo.hProcess);
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140
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141 if (retval != 0) {
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142 /* TODO make this nicer */
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143 emit error (tr("The process failed with return code. %1").arg(retval));
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144 return;
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145 }
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146 #else /* WIN32 */
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147 QProcess installerProcess;
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148 installerProcess.setProgram(cinstProcInfo.absoluteFilePath());
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149 QStringList parameters;
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150
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151 choicesFile.setAutoRemove(false);
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152 parameters << "list=" + mCertListFile << "choices=" + choicesFile.fileName();
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153 installerProcess.setArguments(parameters);
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154
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155
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156 qDebug() << "Starting process " << cinstFileName <<" params: " << parameters;
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157 installerProcess.start();
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158 if (!installerProcess.waitForStarted() ||
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159 installerProcess.state() == QProcess::NotRunning) {
364
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160 emit error (tr("Failed to start installer process."));
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161 return;
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162 }
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163
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164 installerProcess.waitForFinished();
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165
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166 if (installerProcess.exitStatus() == QProcess::CrashExit) {
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167 /* Woops */
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168 emit error (tr("Failed to complete installation."));
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169 return;
364
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170 } else if (installerProcess.exitStatus() != QProcess::NormalExit) {
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171 /* Can not Happen. there are only those two values but maybe
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172 * qt changed.. */
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173 emit error (tr("Failed to complete installation."));
364
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174 return;
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175 }
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176
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177 if (installerProcess.exitCode() == 0) {
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178 qDebug() << "output: " << installerProcess.readAllStandardOutput();
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179 } else {
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180 /* TODO handle errors defined by errorcodes.h */
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181 qDebug() << "Installer Process returned: " << installerProcess.exitCode();
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182 qDebug() << "output: " << installerProcess.readAllStandardOutput();
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183 return;
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184 }
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185 #endif
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186 emit installationSuccessful();
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187 }
http://wald.intevation.org/projects/trustbridge/