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annotate ui/processhelp_win.cpp @ 840:c9a31544aaab

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(issue50) Write startup file with display variable
author Andre Heinecke <andre.heinecke@intevation.de>
date Tue, 29 Jul 2014 13:15:32 +0200
parents 20ca94680003
children
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 #ifdef WIN32
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9 #include "processhelp.h"
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10 #include "strhelp.h"
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11 #include "util.h"
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12
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13 #include <windows.h>
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14 #include <tlhelp32.h>
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15 #include <psapi.h>
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16 #include <unistd.h>
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17
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18 #include <QDebug>
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19
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20 struct EnumWindowsStruct {
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21 EnumWindowsStruct() : windowId(0) {}
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22 DWORD pid;
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23 HWND windowId;
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24 };
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25
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26 BOOL CALLBACK EnumWindowsProc(HWND hwnd, LPARAM lParam)
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27 {
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28 if (GetWindowLong(hwnd, GWL_STYLE) & WS_VISIBLE) {
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29
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30 DWORD pidwin;
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31
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32 GetWindowThreadProcessId(hwnd, &pidwin);
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33 if (pidwin == ((EnumWindowsStruct *)lParam)->pid) {
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34 ((EnumWindowsStruct *)lParam)->windowId = hwnd;
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35 return FALSE;
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36 }
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37 }
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38 return TRUE;
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39 }
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40
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41 static HANDLE getProcessHandle(int processID)
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42 {
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43 return OpenProcess(SYNCHRONIZE |
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44 PROCESS_QUERY_INFORMATION |
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45 PROCESS_VM_READ |
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46 PROCESS_TERMINATE,
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47 false, processID);
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48 }
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49
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50 const QList<int> ProcessHelp::getProcessesIdForName(const QString &processName)
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51 {
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52 HANDLE h;
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53 PROCESSENTRY32 pe32;
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54 QList <int> pids;
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55
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56 h = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
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57 if (h == INVALID_HANDLE_VALUE) {
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58 return pids;
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59 }
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60
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61 pe32.dwSize = sizeof(PROCESSENTRY32); // Necessary according to MSDN
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62 if (!Process32First(h, &pe32)) {
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63 return pids;
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64 }
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65
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66 pids.clear();
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67
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68 const QString processNameLower = processName.toLower().replace(".exe", "");
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69 const QString processNameExe = processNameLower + ".exe";
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70
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71 do {
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72 const QString exeFile = QString::fromWCharArray(pe32.szExeFile).toLower();
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73 if (exeFile == processNameLower || exeFile == processNameExe) {
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74 PSID user_sid = get_process_owner(GetCurrentProcess());
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75 if (user_sid) {
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76 // Also check that we are the owner of that process
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77 HANDLE hProcess = getProcessHandle(pe32.th32ProcessID);
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78 if (!hProcess) {
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79 continue;
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80 }
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81
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82 PSID sid = get_process_owner(hProcess);
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83 PSID userSid = get_process_owner(GetCurrentProcess());
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84 if (!sid || (userSid && !EqualSid(userSid, sid))) {
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85 free(sid);
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86 continue;
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87 }
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88 }
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89 pids.append((int)pe32.th32ProcessID);
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90 qDebug() << "found PID: " << (int)pe32.th32ProcessID;
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91 }
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92 } while (Process32Next(h, &pe32));
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93 CloseHandle(h);
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94 return pids;
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95 }
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96
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97 bool ProcessHelp::otherProcessesExist(const QString &processName)
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98 {
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99 const QList<int> pids = getProcessesIdForName(processName);
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100 int myPid = getpid();
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101 foreach(int pid, pids) {
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102 if (myPid != pid) {
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103 qDebug() << "Found another process with id: " << pid;
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104 return true;
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105 }
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106 }
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107 return false;
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108 }
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109
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110 void ProcessHelp::activateWindowForProcess(const QString &executableName)
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111 {
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112 const QList<int> pids = getProcessesIdForName(executableName);
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113 int myPid = getpid();
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114 int foundPid = 0;
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115 foreach(int pid, pids) {
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116 if (myPid != pid) {
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117 qDebug() << "activateWindowForProcess(): PID to activate:" << pid;
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118 foundPid = pid;
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119 break;
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120 }
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121 }
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122 if (foundPid == 0) {
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123 return;
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124 }
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125 EnumWindowsStruct winStruct;
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126 winStruct.pid = foundPid;
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127 EnumWindows(EnumWindowsProc, (LPARAM)&winStruct);
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128 if (winStruct.windowId == 0) {
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129 return;
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130 }
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131 SetForegroundWindow(winStruct.windowId);
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132 }
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Sascha Wilde <wilde@intevation.de>
parents: 670
diff changeset
133
20ca94680003 Implemented detection of running instance on linux using a lock file.
Sascha Wilde <wilde@intevation.de>
parents: 670
diff changeset
134 void ProcessHelp::cleanUp() {
20ca94680003 Implemented detection of running instance on linux using a lock file.
Sascha Wilde <wilde@intevation.de>
parents: 670
diff changeset
135 // Nothing to do on Windows.
20ca94680003 Implemented detection of running instance on linux using a lock file.
Sascha Wilde <wilde@intevation.de>
parents: 670
diff changeset
136 return;
20ca94680003 Implemented detection of running instance on linux using a lock file.
Sascha Wilde <wilde@intevation.de>
parents: 670
diff changeset
137 }
20ca94680003 Implemented detection of running instance on linux using a lock file.
Sascha Wilde <wilde@intevation.de>
parents: 670
diff changeset
138
603
cfef809b890d Add Process Management functions and ther implementation for windows.
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
139 #endif // WIN32
http://wald.intevation.org/projects/trustbridge/