| 1 | /************************************************************************** |
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| 2 | * Copyright (C) 2004-2007 by Michael Medin <michael@medin.name> * |
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| 3 | * * |
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| 4 | * This code is part of NSClient++ - http://trac.nakednuns.org/nscp * |
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| 5 | * * |
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| 6 | * This program is free software; you can redistribute it and/or modify * |
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| 7 | * it under the terms of the GNU General Public License as published by * |
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| 8 | * the Free Software Foundation; either version 2 of the License, or * |
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| 9 | * (at your option) any later version. * |
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| 10 | * * |
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| 11 | * This program is distributed in the hope that it will be useful, * |
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| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * |
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| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
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| 14 | * GNU General Public License for more details. * |
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| 15 | * * |
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| 16 | * You should have received a copy of the GNU General Public License * |
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| 17 | * along with this program; if not, write to the * |
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| 18 | * Free Software Foundation, Inc., * |
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| 19 | * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * |
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| 20 | ***************************************************************************/ |
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| 21 | #pragma once |
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| 22 | |
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| 23 | #include <string> |
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| 24 | #include <map> |
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| 25 | #include <strEx.h> |
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| 26 | #include <error.hpp> |
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| 27 | #include <filter_framework.hpp> |
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| 28 | |
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| 29 | class ComError { |
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| 30 | public: |
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| 31 | static std::wstring getComError() { |
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| 32 | USES_CONVERSION; |
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| 33 | CComPtr<IErrorInfo> errorInfo; |
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| 34 | HRESULT hr = GetErrorInfo(NULL, &errorInfo); |
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| 35 | if (FAILED(hr) || hr == S_FALSE) |
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| 36 | return _T("unknown error: ") + error::format::from_system(hr); |
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| 37 | CComBSTR bDesc, bSource; |
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| 38 | hr = errorInfo->GetSource(&bSource); |
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| 39 | if (FAILED(hr)) |
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| 40 | return _T("unknown error: ") + error::format::from_system(hr); |
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| 41 | hr = errorInfo->GetDescription(&bDesc); |
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| 42 | if (FAILED(hr)) |
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| 43 | return _T("unknown error: ") + error::format::from_system(hr); |
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| 44 | std::wstring ret = OLE2T(bSource); |
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| 45 | ret += _T(" - "); |
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| 46 | ret += OLE2T(bDesc); |
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| 47 | return ret; |
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| 48 | } |
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| 49 | }; |
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| 50 | |
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| 51 | class WMIException { |
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| 52 | std::wstring message_; |
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| 53 | public: |
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| 54 | WMIException(std::wstring str, HRESULT code) { |
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| 55 | message_ = str + _T(":") + error::format::from_system(code); |
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| 56 | } |
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| 57 | std::wstring getMessage() { |
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| 58 | return message_; |
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| 59 | } |
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| 60 | }; |
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| 61 | class WMIQuery |
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| 62 | { |
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| 63 | public: |
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| 64 | struct WMIResult { |
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| 65 | std::wstring alias; |
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| 66 | std::wstring string; |
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| 67 | long long numeric; |
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| 68 | bool isNumeric; |
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| 69 | WMIResult() : isNumeric(false), numeric(0) {} |
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| 70 | void setString(std::wstring a, std::wstring s) { |
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| 71 | string = s; |
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| 72 | numeric = 0; |
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| 73 | alias = a; |
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| 74 | } |
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| 75 | void setNumeric(std::wstring a, long long n) { |
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| 76 | numeric = n; |
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| 77 | string = strEx::itos(n); |
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| 78 | alias = a; |
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| 79 | } |
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| 80 | void setBoth(std::wstring a, long long n, std::wstring s) { |
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| 81 | numeric = n; |
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| 82 | string = s; |
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| 83 | alias = a; |
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| 84 | } |
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| 85 | }; |
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| 86 | struct wmi_row { |
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| 87 | typedef std::map<std::wstring,WMIResult> list_type; |
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| 88 | list_type results; |
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| 89 | boolean hasAlias(std::wstring alias) const { |
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| 90 | if (alias.empty()) |
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| 91 | return true; |
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| 92 | return results.find(alias) != results.end(); |
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| 93 | } |
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| 94 | const WMIResult get(std::wstring alias) const { |
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| 95 | WMIResult ret; |
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| 96 | list_type::const_iterator cit = results.find(alias); |
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| 97 | if (cit != results.end()) |
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| 98 | ret = (*cit).second; |
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| 99 | return ret; |
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| 100 | } |
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| 101 | void addValue(std::wstring column, WMIResult value) { |
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| 102 | results[column] = value; |
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| 103 | } |
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| 104 | |
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| 105 | std::wstring render() { |
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| 106 | std::wstring ret; |
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| 107 | for (list_type::const_iterator it = results.begin(); it != results.end(); ++it) { |
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| 108 | if (!ret.empty()) ret += _T(", "); |
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| 109 | ret += (*it).first + _T("=") + (*it).second.string; |
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| 110 | } |
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| 111 | return ret; |
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| 112 | } |
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| 113 | |
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| 114 | }; |
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| 115 | typedef std::list<wmi_row> result_type; |
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| 116 | struct wmi_filter { |
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| 117 | std::wstring alias; |
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| 118 | filters::filter_all_strings string; |
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| 119 | filters::filter_all_numeric<unsigned long long, checkHolders::int64_handler > numeric; |
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| 120 | |
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| 121 | inline bool hasFilter() { |
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| 122 | return string.hasFilter() || numeric.hasFilter(); |
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| 123 | } |
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| 124 | bool matchFilter(const wmi_row &value) const { |
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| 125 | if (!value.hasAlias(alias)) { |
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| 126 | NSC_DEBUG_MSG_STD(_T("We don't have any column matching: ") + alias); |
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| 127 | return false; |
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| 128 | } |
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| 129 | if (alias.empty()) { |
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| 130 | for (wmi_row::list_type::const_iterator cit = value.results.begin(); cit != value.results.end(); ++cit) { |
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| 131 | if ((string.hasFilter())&&(string.matchFilter((*cit).second.string))) |
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| 132 | return true; |
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| 133 | else if ((numeric.hasFilter())&&(numeric.matchFilter((*cit).second.numeric))) |
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| 134 | return true; |
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| 135 | } |
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| 136 | } else { |
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| 137 | if ((string.hasFilter())&&(string.matchFilter(value.get(alias).string))) |
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| 138 | return true; |
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| 139 | else if ((numeric.hasFilter())&&(numeric.matchFilter(value.get(alias).numeric))) |
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| 140 | return true; |
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| 141 | } |
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| 142 | NSC_DEBUG_MSG_STD(_T("Value did not match a filter: ") + alias); |
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| 143 | return false; |
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| 144 | } |
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| 145 | }; |
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| 146 | WMIQuery(void) {}; |
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| 147 | ~WMIQuery(void) {}; |
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| 148 | |
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| 149 | result_type execute(std::wstring query); |
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| 150 | std::wstring sanitize_string(LPTSTR in); |
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| 151 | }; |
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