Mercurial > trustbridge > trustbridge

annotate ui/installwrapper.cpp @ 646:a9a57dc1eb2f

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Start installer process as sudo if possible.
author Andre Heinecke <andre.heinecke@intevation.de>
date Wed, 25 Jun 2014 10:55:03 +0200
parents cef732072774
children 51830f4912c2
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 #include "util.h"
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19
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20 #define INSTALL_TIMEOUT 3600000 /* Wait up to an hour */
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21
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22 InstallWrapper::InstallWrapper(QObject* parent,
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23 const QString& path, const QStringList& choices):
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24 QThread(parent),
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25 mCertListFile(path),
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26 mChoices(choices)
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27 {
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28 }
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29
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30 QFileInfo getCinstProcInfo() {
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31 QFileInfo fi(QCoreApplication::applicationFilePath());
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32 QDir myDir = fi.absoluteDir();
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33 QString instProcName = "cinst";
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34 if (!fi.suffix().isEmpty()) {
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35 instProcName += "." + fi.suffix();
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36 }
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37 return QFileInfo(myDir.absoluteFilePath(instProcName));
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38 }
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39
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40 bool InstallWrapper::writeChoices(QTemporaryFile* choicesFile) const
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41 {
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42 if (!choicesFile->open()) {
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43 return false;
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44 }
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45
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46 foreach (const QString &b64data, mChoices) {
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47 if (choicesFile->write(b64data.toLatin1()) == -1) {
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48 return false;
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49 }
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50 if (choicesFile->write("\n") == -1) {
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51 return false;
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52 }
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53 }
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54
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55 choicesFile->close();
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56
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57 return true;
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58 }
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59
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60 void InstallWrapper::run()
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61 {
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62 /* TODO: We need errorcodes here so that we can see if a user
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63 * cancled the UAC elevation */
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64 QTemporaryFile choicesFile;
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65 QFileInfo cinstProcInfo = getCinstProcInfo();
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66
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67 QString cinstFileName = QDir::toNativeSeparators(
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68 getCinstProcInfo().absoluteFilePath());
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69
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70 if (!cinstProcInfo.isExecutable()) {
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71 emit error(tr("Could not find certificate installation process."));
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72 return;
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73 }
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74
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75 if (!writeChoices(&choicesFile)) {
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76 emit error(tr("Failed to write temporary file."));
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77 return;
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78 }
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79
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80 #ifdef WIN32
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81 /* QProcess on Windows uses CreateProcess but we have to
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82 * use the runas shell command to get the UAC prompt if necessary.
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83 * So we have to handle the process ourself. Starting with
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84 * shell execute also means that we can not have stdout and stderr
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85 * redirection. This is the reason we use command line parameters
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86 * and not a pipe for communication. In debug mode the installer
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87 * also makes use of output debug string. */
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88 DWORD retval = 0;
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89 SHELLEXECUTEINFOW shExecInfo;
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90
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91 memset (&shExecInfo, 0, sizeof(SHELLEXECUTEINFOW));
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92
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93 /* Windows needs each parameter packed in " */
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94 QString parameters = "\"list=" + mCertListFile +
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95 "\" \"choices=" + choicesFile.fileName() + "\"";
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96
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97 shExecInfo.cbSize = sizeof(SHELLEXECUTEINFOW);
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98 shExecInfo.fMask = SEE_MASK_NOCLOSEPROCESS;
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99 if (!is_admin()) {
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100 shExecInfo.lpVerb = L"open";
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101 } else {
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102 shExecInfo.lpVerb = L"runas";
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103 }
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104 shExecInfo.lpFile = reinterpret_cast<LPCWSTR> (cinstFileName.utf16());
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105 shExecInfo.lpParameters = reinterpret_cast<LPCWSTR> (parameters.utf16());
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106
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107 qDebug() << "Starting process " << cinstFileName <<" params: " << parameters;
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108
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109 if (!ShellExecuteExW(&shExecInfo)) {
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110 char* errmsg = getLastErrorMsg();
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111 QString qerrmsg = QString::fromUtf8(errmsg);
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112 free(errmsg);
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113 emit error(tr("Error executing process: %1").arg(qerrmsg));
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114 return;
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115 }
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116
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117 retval = WaitForSingleObject(shExecInfo.hProcess, INSTALL_TIMEOUT);
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118
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119 if (retval != WAIT_OBJECT_0) {
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120 if (retval == WAIT_FAILED) {
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121 char* errmsg = getLastErrorMsg();
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122 QString qerrmsg = QString::fromUtf8(errmsg);
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123 free(errmsg);
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124 emit error (tr("Error monitoring process: %1").arg(qerrmsg));
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125 return;
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126 } else {
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127 emit error (tr("Certificate installation timed out."));
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128 return;
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129 }
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130 }
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131
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132 if (GetExitCodeProcess(shExecInfo.hProcess, &retval)) {
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133 if (retval == STILL_ACTIVE) {
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134 qDebug() << "Process still running, huh..";
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135 }
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136 } else {
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137 char* errmsg = getLastErrorMsg();
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138 QString qerrmsg = QString::fromUtf8(errmsg);
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139 free(errmsg);
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140 emit error (tr("Failed to check process status: %1").arg(qerrmsg));
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141 CloseHandle(shExecInfo.hProcess);
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142 return;
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143 }
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144 CloseHandle(shExecInfo.hProcess);
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145
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146 if (retval != 0) {
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147 /* TODO make this nicer */
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148 emit error (tr("The process failed with return code. %1").arg(retval));
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149 return;
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150 }
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151 #else /* WIN32 */
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152 QProcess installerProcess;
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153 QStringList parameters;
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154
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155 choicesFile.setAutoRemove(false);
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156 parameters << "list=" + mCertListFile << "choices=" + choicesFile.fileName();
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157
646
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158 bool sudo_started = false;
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159 bool use_sudo = is_admin();
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160 if (use_sudo) {
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161 QStringList sudoPrograms;
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162 sudoPrograms << "gksudo" << "kdesudo" << "sudo";
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163 QStringList sudoParams;
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164 sudoParams <<cinstProcInfo.absoluteFilePath() << parameters;
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165 installerProcess.setArguments(sudoParams);
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166
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167 foreach (const QString &sProg, sudoPrograms) {
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168 installerProcess.setProgram(sProg);
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169 qDebug() << "Starting process " << sProg <<" params: " << sudoParams;
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170 installerProcess.start();
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171 if (!installerProcess.waitForStarted() ||
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172 installerProcess.state() == QProcess::NotRunning) {
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173 continue;
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174 } else {
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175 sudo_started = true;
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176 break;
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177 }
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178 }
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179 }
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180
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181 /* Fallback to start without sudo */
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182 if (!use_sudo || !sudo_started) {
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183 installerProcess.setProgram(cinstProcInfo.absoluteFilePath());
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184 installerProcess.setArguments(parameters);
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185
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186 qDebug() << "Starting process " << cinstFileName <<" params: " << parameters;
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187 installerProcess.start();
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188 if (!installerProcess.waitForStarted() ||
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189 installerProcess.state() == QProcess::NotRunning) {
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190 emit error (tr("Failed to start installer process."));
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191 return;
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192 }
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193 }
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194
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195 installerProcess.waitForFinished();
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196
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197 if (installerProcess.exitStatus() == QProcess::CrashExit) {
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198 /* Woops */
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199 emit error (tr("Failed to complete installation."));
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200 return;
364
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201 } else if (installerProcess.exitStatus() != QProcess::NormalExit) {
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202 /* Can not Happen. there are only those two values but maybe
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203 * qt changed.. */
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204 emit error (tr("Failed to complete installation."));
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205 return;
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206 }
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207
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208 if (installerProcess.exitCode() == 0) {
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209 qDebug() << "output: " << installerProcess.readAllStandardOutput();
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210 } else {
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211 /* TODO handle errors defined by errorcodes.h */
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212 qDebug() << "Installer Process returned: " << installerProcess.exitCode();
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213 qDebug() << "output: " << installerProcess.readAllStandardOutput();
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214 return;
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215 }
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216 #endif
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217 emit installationSuccessful();
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218 }
http://wald.intevation.org/projects/trustbridge/