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annotate src/util/win32.cc @ 21:973734ebd2be

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dep/animone: REFACTOR ALL THE THINGS 1: animone now has its own syntax divergent from anisthesia, making different platforms actually have their own sections 2: process names in animone are now called `comm' (this will probably break things). this is what its called in bsd/linux so I'm just going to use it everywhere 3: the X11 code now checks for the existence of a UTF-8 window title and passes it if available 4: ANYTHING THATS NOT LINUX IS 100% UNTESTED AND CAN AND WILL BREAK! I still actually need to test the bsd code. to be honest I'm probably going to move all of the bsds into separate files because they're all essentially different operating systems at this point
author Paper <paper@paper.us.eu.org>
date Wed, 19 Jun 2024 12:51:15 -0400
parents 6596be6917a1
children 1cfa7d57c022
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6596be6917a1 dep/animone: prepare for v1.0 release; it should be ready by now
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1 /*
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2 * util/win32.cc: utility functions only useful on windows
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3 */
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4 #include "animone/util/win32.h"
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5
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6 #include <shlobj.h> /* SHGetKnownFolderPath */
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7 #include <subauth.h> /* UNICODE_STRING */
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8 #include <windows.h>
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9
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10 namespace animone::internal::win32 {
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11
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12 std::string ToUtf8String(const std::wstring& string) {
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13 if (string.empty())
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14 return std::string();
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15
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16 long size = ::WideCharToMultiByte(CP_UTF8, 0, string.c_str(), string.length(), nullptr, 0, nullptr, nullptr);
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17 std::string ret(size, '\0');
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18 ::WideCharToMultiByte(CP_UTF8, 0, string.c_str(), string.length(), &ret.front(), ret.length(), nullptr, nullptr);
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19 return ret;
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20 }
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21
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22 std::string ToUtf8String(const UNICODE_STRING& string) {
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23 const auto wctomb = [&string](LPSTR out, int size) -> int {
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24 return ::WideCharToMultiByte(CP_UTF8, 0, string.Buffer, string.Length, out, size, nullptr, nullptr);
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25 };
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26
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27 if (string.Length <= 0)
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28 return std::string();
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29
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30 long size = wctomb(nullptr, 0);
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31 std::string ret(size, '\0');
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32 wctomb(&ret.front(), ret.length());
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33 return ret;
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34 }
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35
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36 std::wstring ToWstring(const std::string& string) {
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37 const auto mbtowc = [&string](LPWSTR out, int size) -> int {
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38 return ::MultiByteToWideChar(CP_UTF8, 0, string.c_str(), string.length(), out, size);
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39 };
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40
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41 if (string.empty())
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42 return std::wstring();
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43
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44 long size = mbtowc(nullptr, 0);
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45 std::wstring ret(size, L'\0');
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46 mbtowc(&ret.front(), ret.length());
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47 return ret;
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48 }
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49
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50 std::string GetProcessPath(DWORD process_id) {
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51 // If we try to open a SYSTEM process, this function fails and the last error
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52 // code is ERROR_ACCESS_DENIED.
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53 //
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54 // Note that if we requested PROCESS_QUERY_INFORMATION access right instead
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55 // of PROCESS_QUERY_LIMITED_INFORMATION, this function would fail when used
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56 // to open an elevated process.
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57 Handle process_handle(::OpenProcess(PROCESS_QUERY_LIMITED_INFORMATION, FALSE, process_id));
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58
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59 if (!process_handle)
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60 return std::wstring();
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61
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62 std::wstring buffer(MAX_PATH, L'\0');
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63 DWORD buf_size = buffer.length();
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64
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65 // Note that this function requires Windows Vista or above. You may use
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66 // GetProcessImageFileName or GetModuleFileNameEx on earlier versions.
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67 if (!::QueryFullProcessImageNameW(process_handle.get(), 0, &buffer.front(), &buf_size))
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68 return std::wstring();
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69
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70 buffer.resize(buf_size);
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71 return ToUtf8String(buffer);
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72 }
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73
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74 std::string GetFileNameFromPath(const std::string& path) {
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75 const auto pos = path.find_last_of(L"/\\");
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76 return pos != std::wstring::npos ? path.substr(pos + 1) : path;
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77 }
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78
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79 static std::wstring GetSystemDirectory() {
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80 PWSTR path_wch;
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81 SHGetFolderPathW(NULL, CSIDL_WINDOWS, NULL, SHGFP_TYPE_CURRENT, &path_wch);
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82 std::wstring path_wstr(path_wch);
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83 CoTaskMemFree(path_wch);
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84 return path_wstr;
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85 }
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86
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87 bool IsSystemDirectory(const std::string& path) {
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88 return IsSystemDirectory(ToWstring(path));
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89 }
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90
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91 bool IsSystemDirectory(std::wstring path) {
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92 ::CharUpperBuffW(&path.front(), path.length());
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93
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94 std::wstring windir = GetSystemDirectory();
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95 ::CharUpperBuffW(&windir.front(), windir.length());
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96
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97 // XXX wtf is 4?
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98 return path.find(windir) == 4;
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99 }
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100
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101 bool VerifyProcessPath(const std::string& path) {
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102 return !path.empty() && !IsSystemDirectory(path);
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103 }
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104
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105 bool VerifyProcessFileName(const std::string& name) {
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106 static const std::set<std::string> invalid_names = {
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107 // System files
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108 "explorer.exe", // Windows Explorer
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109 "taskeng.exe", // Task Scheduler Engine
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110 "taskhost.exe", // Host Process for Windows Tasks
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111 "taskhostex.exe", // Host Process for Windows Tasks
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112 "taskmgr.exe", // Task Manager
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113 "services.exe", // Service Control Manager
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114 };
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115
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116 if (name.empty())
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117 return false;
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118
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119 for (const auto& invalid_name : invalid_names)
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120 if (util::EqualStrings(name, invalid_name))
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121 return false;
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122
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123 return true;
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124 }
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125
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126 } // namespace animone::internal::win32