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Rev | Author | Line No. | Line |
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75 | daniel-mar | 1 | unit RecBinUnit2 platform; |
2 | |||
3 | //////////////////////////////////////////////////////////////////////////////////// |
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76 | daniel-mar | 4 | // RECYCLE-BIN-UNIT V2 BY DANIEL MARSCHALL, VIATHINKSOFT // |
75 | daniel-mar | 5 | // E-MAIL: info@daniel-marschall.de // |
76 | daniel-mar | 6 | // Web: www.daniel-marschall.de & www.viathinksoft.de // |
75 | daniel-mar | 7 | //////////////////////////////////////////////////////////////////////////////////// |
106 | daniel-mar | 8 | // Revision: 04 JUN 2023 // |
75 | daniel-mar | 9 | // This unit is freeware, but please link to my website if you are using it! // |
10 | //////////////////////////////////////////////////////////////////////////////////// |
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11 | // Successfully tested with: // |
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12 | // Windows 95b (without IE4 Shell Extensions) // |
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13 | // Windows 95b (with IE4 Shell Extensions) // |
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76 | daniel-mar | 14 | // Windows 98 SE // |
75 | daniel-mar | 15 | // Windows NT4 SP6 // |
76 | daniel-mar | 16 | // Windows XP SP3 // |
17 | // Windows 2000 SP4 // |
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75 | daniel-mar | 18 | // Windows 2003 Server EE SP1 // |
19 | // Windows Vista // |
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20 | // Windows 7 // |
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82 | daniel-mar | 21 | // Windows 10 (version 1 and version 2 format) // |
22 | // Windows 11 // |
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75 | daniel-mar | 23 | //////////////////////////////////////////////////////////////////////////////////// |
24 | |||
25 | // Delphi 7 Compatibility: (TODO: compiler switches) |
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26 | // - Remove "static" |
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27 | // - Remove "strict" |
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28 | // - Remove "$REGION" |
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29 | |||
30 | // TODO: ReadBuffer überall try-except |
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31 | // TODO: Always check EOF before reading anything? |
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76 | daniel-mar | 32 | // TODO: Don't crash when timestamp is invalid. Do something else instead. |
75 | daniel-mar | 33 | // TODO: Is it possible to identify a Vista-file that is not named $Ixxxxxx.ext? |
34 | // TODO: RecyclerGetInfofiles() check additionally for removable device? |
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35 | // RecyclerIsValid() is false. |
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36 | // TODO: Make it possible to empty the recycle bin of one specific drive! |
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37 | // TODO: Unknown! Do you know the answer? |
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38 | // - How does Windows 9x/NT manage the daylight saving time (if it does)? |
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39 | // - How does Windows Vista+ react to a RECYCLER\ folder on a NTFS device? |
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40 | // - How does Windows Vista+ react to a RECYCLED\ folder on a FAT device? ==> Win7: is ignored! |
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41 | // - How does Windows XP react to RECYCLED\ folder on a FAT device? |
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42 | // TODO: Translate all comments from German to English |
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78 | daniel-mar | 43 | // TODO: Do we need this (maybe not all drives have A: till Z:?) http://stackoverflow.com/questions/17110543/how-to-retrieve-the-disk-signature-of-all-the-disks-in-windows-using-delphi-7 |
44 | // TODO: Add a lot of setters for system config stuff |
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75 | daniel-mar | 45 | |
46 | // If enabled, the deletion timestamps will not be converted by the WinAPI. |
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47 | {.$DEFINE FILETIME_DELPHI_CODE} |
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48 | |||
49 | // If a value is set in HKEY_LOCAL_MACHINE, it will be prefered, even if gpedit.msc shows "Not configured"! |
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50 | {$DEFINE GroupPolicyAcceptHKLMTrick} |
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51 | |||
52 | interface |
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53 | |||
54 | uses |
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78 | daniel-mar | 55 | Windows, SysUtils, Classes, ContNrs, ShellAPI, Registry, Messages, Math; |
75 | daniel-mar | 56 | |
57 | const |
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106 | daniel-mar | 58 | RECBINUNIT_VERSION = '2023-06-04'; |
75 | daniel-mar | 59 | |
60 | RECYCLER_CLSID: TGUID = '{645FF040-5081-101B-9F08-00AA002F954E}'; |
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78 | daniel-mar | 61 | NULL_GUID: TGUID = '{00000000-0000-0000-0000-000000000000}'; |
75 | daniel-mar | 62 | |
63 | type |
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64 | EAPICallError = class(Exception); |
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65 | EEventCategoryNotDefined = class(Exception); |
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66 | EInvalidDrive = class(Exception); |
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67 | |||
68 | PSHQueryRBInfo = ^TSHQueryRBInfo; |
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93 | daniel-mar | 69 | {$IFDEF WIN64} |
70 | // ATTENTION! MUST NOT BE PACKED! Alignment for 64 bit must be 8 and for 32 bit must be 4 |
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71 | TSHQueryRBInfo = record |
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72 | {$ELSE} |
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75 | daniel-mar | 73 | TSHQueryRBInfo = packed record |
93 | daniel-mar | 74 | {$ENDIF} |
76 | daniel-mar | 75 | cbSize : DWORD; |
75 | daniel-mar | 76 | i64Size : int64; |
77 | i64NumItems : int64; |
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78 | end; |
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79 | |||
80 | TRbRecycleBinItem = class(TObject) |
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81 | strict private |
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82 | function GetSource: string; |
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83 | strict protected |
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84 | FSourceAnsi: AnsiString; |
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85 | FSourceUnicode: WideString; |
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86 | FID: string; |
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87 | FSourceDrive: Char; |
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88 | FDeletionTime: TDateTime; |
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89 | FOriginalSize: int64; |
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90 | FIndexFile: string; |
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91 | FRemovedEntry: boolean; |
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92 | procedure ReadFromStream(stream: TStream); virtual; abstract; |
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93 | function GetPhysicalFile: string; virtual; abstract; // protected, because it will be read by "property" |
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94 | public |
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95 | property PhysicalFile: string read GetPhysicalFile; |
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96 | property SourceAnsi: AnsiString read FSourceAnsi; |
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97 | property SourceUnicode: WideString read FSourceUnicode; |
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86 | daniel-mar | 98 | property Source: string read GetSource; // will bei either ANSI or Unicode, depending on the Delphi version |
75 | daniel-mar | 99 | property ID: string read FID; |
100 | property SourceDrive: Char read FSourceDrive; |
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101 | property DeletionTime: TDateTime read FDeletionTime; |
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102 | property OriginalSize: int64 read FOriginalSize; |
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103 | property IndexFile: string read FIndexFile; |
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104 | property RemovedEntry: boolean read FRemovedEntry; // the file is NOT in the recycle bin anymore! |
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105 | |||
88 | daniel-mar | 106 | // Attention: There are no official API calls. The delete and recover |
75 | daniel-mar | 107 | // functions might fail and/or damage the shell cache. Handle with care! |
108 | function DeleteFile: boolean; virtual; abstract; |
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109 | function RecoverFile: boolean; virtual; abstract; |
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110 | function OpenFile: boolean; virtual; abstract; |
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111 | end; |
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112 | |||
76 | daniel-mar | 113 | TRbInfoAItem = class(TRbRecycleBinItem) |
75 | daniel-mar | 114 | strict protected |
115 | procedure ReadFromStream(stream: TStream); override; |
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116 | function GetPhysicalFile: string; override; |
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117 | public |
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102 | daniel-mar | 118 | constructor Create(fs: TStream; AIndexFile: string); reintroduce; |
75 | daniel-mar | 119 | function DeleteFile: boolean; override; |
120 | // TODO: function RecoverFile: boolean; override; |
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121 | // TODO: function OpenFile: boolean; override; |
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122 | end; |
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123 | |||
76 | daniel-mar | 124 | TRbInfoWItem = class(TRbRecycleBinItem) |
75 | daniel-mar | 125 | strict protected |
126 | procedure ReadFromStream(stream: TStream); override; |
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127 | function GetPhysicalFile: string; override; |
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128 | public |
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102 | daniel-mar | 129 | constructor Create(fs: TStream; AIndexFile: string); reintroduce; |
75 | daniel-mar | 130 | function DeleteFile: boolean; override; |
131 | // TODO: function RecoverFile: boolean; override; |
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132 | // TODO: function OpenFile: boolean; override; |
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133 | end; |
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134 | |||
135 | TRbVistaItem = class(TRbRecycleBinItem) |
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136 | strict protected |
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137 | procedure ReadFromStream(stream: TStream); override; |
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138 | function GetPhysicalFile: string; override; |
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139 | public |
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102 | daniel-mar | 140 | constructor Create(fs: TStream; AIndexFile, AID: string); reintroduce; |
75 | daniel-mar | 141 | function DeleteFile: boolean; override; |
142 | // TODO: function RecoverFile: boolean; override; |
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143 | // TODO: function OpenFile: boolean; override; |
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144 | end; |
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145 | |||
146 | TRbRecycleBin = class(TObject) |
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147 | strict private |
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148 | FFileOrDirectory: string; |
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149 | FSID: string; |
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76 | daniel-mar | 150 | FTolerantReading: boolean; |
75 | daniel-mar | 151 | public |
152 | constructor Create(AFileOrDirectory: string; ASID: string=''); |
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153 | |||
154 | function GetItem(id: string): TRbRecycleBinItem; |
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155 | procedure ListItems(list: TObjectList{TRbRecycleBinItem}); |
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156 | function CheckIndexes(slErrors: TStrings): boolean; |
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157 | |||
158 | property FileOrDirectory: string read FFileOrDirectory; |
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159 | property SID: string read FSID; |
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76 | daniel-mar | 160 | |
161 | // Allows an index file to be read, even if an incompatible multiboot combination |
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162 | // corrupted it. Default: true. |
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163 | property TolerantReading: boolean read FTolerantReading write FTolerantReading; |
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75 | daniel-mar | 164 | end; |
165 | |||
166 | // TODO: Wie sieht es aus mit Laufwerken, die nur als Mount-Point eingebunden sind? |
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167 | TRbDrive = class(TObject) |
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168 | strict private |
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89 | daniel-mar | 169 | FDriveLetter: AnsiChar; |
75 | daniel-mar | 170 | |
78 | daniel-mar | 171 | function OldCapacityPercent(var res: integer): boolean; // in % (0-100) |
172 | function NewCapacityAbsolute(var res: integer): boolean; // in MB |
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173 | |||
174 | function DiskSize: integer; // in MB |
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175 | function DriveNumber: integer; |
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75 | daniel-mar | 176 | strict protected |
177 | function IsFAT: boolean; |
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178 | procedure CheckDriveExisting; |
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78 | daniel-mar | 179 | |
180 | // will return NULL_GUID in case of an error or if it is not supported |
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181 | function GetVolumeGUID: TGUID; |
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182 | function GetVolumeGUIDAvailable: boolean; |
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183 | |||
184 | // TODO: get drive serial |
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75 | daniel-mar | 185 | public |
89 | daniel-mar | 186 | constructor Create(ADriveLetter: AnsiChar); |
75 | daniel-mar | 187 | |
188 | // Wenn UserSID='', dann werden alle Recycler gefunden |
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189 | procedure ListRecycleBins(list: TObjectList{TRbRecycleBin}; UserSID: string=''); |
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190 | |||
89 | daniel-mar | 191 | property DriveLetter: AnsiChar read FDriveLetter; |
75 | daniel-mar | 192 | property VolumeGUID: TGUID read GetVolumeGUID; |
77 | daniel-mar | 193 | property VolumeGUIDAvailable: boolean read GetVolumeGUIDAvailable; |
75 | daniel-mar | 194 | function GetAPIInfo: TSHQueryRBInfo; |
195 | function GetSize: int64; |
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196 | function GetNumItems: int64; |
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197 | function IsEmpty: boolean; |
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198 | |||
78 | daniel-mar | 199 | function GetMaxPercentUsage: Extended; // 0..1 |
200 | function GetMaxAbsoluteUsage: integer; // in MB |
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75 | daniel-mar | 201 | function GetNukeOnDelete: boolean; |
202 | end; |
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203 | |||
204 | GPOLICYBOOL = (gpUndefined, gpEnabled, gpDisabled); |
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205 | |||
206 | TRecycleBinManager = class(TObject) |
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207 | public |
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208 | class procedure ListDrives(list: TObjectList{TRbDrive}); static; |
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89 | daniel-mar | 209 | class function RecycleBinPossible(Drive: AnsiChar): boolean; static; |
75 | daniel-mar | 210 | |
211 | class function OwnRecyclersSize: int64; static; |
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212 | class function OwnRecyclersNumItems: int64; static; |
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213 | class function OwnRecyclersEmpty: boolean; static; |
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214 | |||
215 | class function EmptyOwnRecyclers(flags: cardinal): boolean; overload; static; |
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216 | class function EmptyOwnRecyclers(sound, progress, confirmation: boolean): boolean; overload; static; |
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217 | |||
218 | class function RecyclerGetCurrentIconString: string; static; |
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219 | class function RecyclerGetDefaultIconString: string; static; |
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220 | class function RecyclerGetEmptyIconString: string; static; |
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221 | class function RecyclerGetFullIconString: string; static; |
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222 | |||
223 | class function GetGlobalMaxPercentUsage: integer; static; // TODO: In Win Vista: absolute and not relative sizes |
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224 | class function GetGlobalNukeOnDelete: boolean; static; |
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225 | class function UsesGlobalSettings: boolean; static; |
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226 | |||
227 | class function RecyclerGetName: string; static; |
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228 | class function RecyclerGetInfoTip: string; static; |
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229 | class function RecyclerGetIntroText: string; static; |
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230 | |||
231 | class function RecyclerEmptyEventGetCurrentSound: string; static; |
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232 | class function RecyclerEmptyEventGetDefaultSound: string; static; |
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233 | class function RecyclerEmptyEventGetName: string; static; |
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234 | class function RecyclerEmptyEventGetSound(ACategory: string): string; static; |
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235 | class procedure RecyclerEmptyEventGetSoundCategories(AStringList: TStringList); static; |
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236 | |||
237 | // TODO: In future also detect for other users |
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238 | // TODO: Also make a setter (incl. Message to Windows Explorer?) |
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239 | class function RecyclerGroupPolicyConfirmFileDelete: GPOLICYBOOL; static; |
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240 | class function RecyclerGroupPolicyNoRecycleFiles: GPOLICYBOOL; static; |
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241 | class function RecyclerGroupPolicyRecycleBinSize: integer; static; |
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242 | |||
243 | class function RecyclerConfirmationDialogEnabled: boolean; static; |
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244 | class procedure RecyclerConfirmationDialogSetEnabled(NewSetting: boolean); static; |
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245 | class function RecyclerShellStateConfirmationDialogEnabled: boolean; static; |
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246 | |||
247 | // Diese Funktion ist false, wenn sie z.B. unter Windows 95 ohne Internet Explorer |
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248 | // 4.0 Shell Extension ausgeführt wird. Wenn abwärtskompatibler Code geschrieben |
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249 | // werden soll, sollte RecyclerQueryFunctionAvailable() verwendet werden, da |
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250 | // unter Windows 95 folgende Funktionalitäten NICHT vorhanden sind: |
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251 | // - RecyclerIsEmpty |
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252 | // - RecyclerGetNumItems |
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253 | // - RecyclerGetSize |
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254 | // - RecyclerGetAPIInfo |
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255 | class function RecyclerQueryFunctionAvailable: boolean; static; |
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256 | |||
257 | class function RecyclerAddFileOrFolder(FileOrFolder: string; confirmation: boolean=false): boolean; static; |
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258 | end; |
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259 | |||
260 | function GPBoolToString(value: GPOLICYBOOL): string; |
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261 | |||
262 | implementation |
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263 | |||
264 | uses |
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265 | RecBinUnitLowLvl; |
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266 | |||
267 | {$REGION 'WinAPI/RTL declarations'} |
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268 | (* |
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269 | const |
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270 | {$IFDEF MSWINDOWS} |
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271 | shell32 = 'shell32.dll'; |
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272 | advapi32 = 'advapi32.dll'; |
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273 | kernel32 = 'kernel32.dll'; |
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274 | {$ENDIF} |
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275 | {$IFDEF LINUX} |
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276 | shell32 = 'libshell32.borland.so'; |
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277 | advapi32 = 'libwine.borland.so'; |
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278 | kernel32 = 'libwine.borland.so'; |
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279 | {$ENDIF} |
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280 | *) |
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281 | |||
282 | type |
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283 | SHELLSTATE = record |
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284 | Flags1: DWORD; |
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285 | (* |
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286 | BOOL fShowAllObjects : 1; |
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287 | BOOL fShowExtensions : 1; |
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288 | BOOL fNoConfirmRecycle : 1; |
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289 | |||
290 | BOOL fShowSysFiles : 1; |
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291 | BOOL fShowCompColor : 1; |
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292 | BOOL fDoubleClickInWebView : 1; |
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293 | BOOL fDesktopHTML : 1; |
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294 | BOOL fWin95Classic : 1; |
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295 | BOOL fDontPrettyPath : 1; |
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296 | BOOL fShowAttribCol : 1; // No longer used, dead bit |
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297 | BOOL fMapNetDrvBtn : 1; |
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298 | BOOL fShowInfoTip : 1; |
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299 | BOOL fHideIcons : 1; |
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300 | BOOL fWebView : 1; |
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301 | BOOL fFilter : 1; |
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302 | BOOL fShowSuperHidden : 1; |
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303 | BOOL fNoNetCrawling : 1; |
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304 | *) |
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305 | dwWin95Unused: DWORD; // Win95 only - no longer supported pszHiddenFileExts |
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306 | uWin95Unused: UINT; // Win95 only - no longer supported cbHiddenFileExts |
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307 | |||
308 | // Note: Not a typo! This is a persisted structure so we cannot use LPARAM |
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309 | lParamSort: Integer; |
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310 | iSortDirection: Integer; |
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311 | |||
312 | version: UINT; |
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313 | |||
314 | // new for win2k. need notUsed var to calc the right size of ie4 struct |
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315 | // FIELD_OFFSET does not work on bit fields |
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316 | uNotUsed: UINT; // feel free to rename and use |
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317 | Flags2: DWORD; |
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318 | (* |
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319 | BOOL fSepProcess: 1; |
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320 | // new for Whistler. |
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321 | BOOL fStartPanelOn: 1; //Indicates if the Whistler StartPanel mode is ON or OFF. |
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322 | BOOL fShowStartPage: 1; //Indicates if the Whistler StartPage on desktop is ON or OFF. |
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323 | UINT fSpareFlags : 13; |
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324 | *) |
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325 | end; |
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326 | LPSHELLSTATE = ^SHELLSTATE; |
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327 | |||
328 | const |
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329 | // Masks for the SHELLSTATE |
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330 | SSF_SHOWALLOBJECTS = $00000001; |
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331 | SSF_SHOWEXTENSIONS = $00000002; |
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332 | SSF_HIDDENFILEEXTS = $00000004; |
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333 | SSF_SERVERADMINUI = $00000004; |
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334 | SSF_SHOWCOMPCOLOR = $00000008; |
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335 | SSF_SORTCOLUMNS = $00000010; |
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336 | SSF_SHOWSYSFILES = $00000020; |
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337 | SSF_DOUBLECLICKINWEBVIEW = $00000080; |
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338 | SSF_SHOWATTRIBCOL = $00000100; |
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339 | SSF_DESKTOPHTML = $00000200; |
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340 | SSF_WIN95CLASSIC = $00000400; |
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341 | SSF_DONTPRETTYPATH = $00000800; |
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342 | SSF_SHOWINFOTIP = $00002000; |
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343 | SSF_MAPNETDRVBUTTON = $00001000; |
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344 | SSF_NOCONFIRMRECYCLE = $00008000; |
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345 | SSF_HIDEICONS = $00004000; |
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346 | SSF_FILTER = $00010000; |
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347 | SSF_WEBVIEW = $00020000; |
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348 | SSF_SHOWSUPERHIDDEN = $00040000; |
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349 | SSF_SEPPROCESS = $00080000; |
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350 | SSF_NONETCRAWLING = $00100000; |
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351 | SSF_STARTPANELON = $00200000; |
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352 | SSF_SHOWSTARTPAGE = $00400000; |
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353 | {$ENDREGION} |
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354 | |||
355 | resourcestring |
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356 | LNG_API_CALL_ERROR = 'Error while calling the API. Additional information: "%s".'; |
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357 | LNG_NOT_CALLABLE = '%s not callable'; |
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358 | LNG_ERROR_CODE = '%s (Arguments: %s) returns error code %s'; |
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359 | LNG_FILE_NOT_FOUND = 'File not found: %s'; |
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76 | daniel-mar | 360 | LNG_INVALID_INFO_FORMAT = 'Unexpected record size: %s'; |
75 | daniel-mar | 361 | LNG_DRIVE_NOT_EXISTING = 'Drive %s does not exist.'; |
362 | |||
363 | const |
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93 | daniel-mar | 364 | {$IFDEF UNICODE} |
365 | C_SHEmptyRecycleBin = 'SHEmptyRecycleBinW'; |
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366 | C_SHQueryRecycleBin = 'SHQueryRecycleBinW'; |
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367 | C_GetVolumeNameForVolumeMountPoint = 'GetVolumeNameForVolumeMountPointW'; |
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368 | {$ELSE} |
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369 | C_SHEmptyRecycleBin = 'SHEmptyRecycleBinA'; |
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75 | daniel-mar | 370 | C_SHQueryRecycleBin = 'SHQueryRecycleBinA'; |
371 | C_GetVolumeNameForVolumeMountPoint = 'GetVolumeNameForVolumeMountPointA'; |
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93 | daniel-mar | 372 | {$ENDIF} |
75 | daniel-mar | 373 | C_SHGetSettings = 'SHGetSettings'; |
374 | C_SHGetSetSettings = 'SHGetSetSettings'; |
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375 | |||
376 | type |
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377 | TSHQueryRecycleBin = function(pszRootPath: LPCTSTR; var pSHQueryRBInfo: TSHQueryRBInfo): HRESULT; stdcall; |
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93 | daniel-mar | 378 | TGetVolumeNameForVolumeMountPoint = function(lpszVolumeMountPoint: LPCTSTR; lpszVolumeName: LPTSTR; cchBufferLength: DWORD): BOOL; stdcall; |
379 | TSHEmptyRecycleBin = function(Wnd: HWND; pszRootPath: LPCTSTR; dwFlags: DWORD): HRESULT; stdcall; |
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82 | daniel-mar | 380 | TSHGetSettings = procedure(var lpss: SHELLSTATE; dwMask: DWORD); stdcall; |
381 | TSHGetSetSettings = procedure(var lpss: SHELLSTATE; dwMask: DWORD; bSet: BOOL); stdcall; |
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75 | daniel-mar | 382 | |
88 | daniel-mar | 383 | procedure AnsiRemoveNulChars(var s: AnsiString); |
384 | begin |
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385 | while (Length(s) > 0) and (s[Length(s)] = #0) do |
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386 | s := Copy(s, 1, Length(s)-1); |
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387 | end; |
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388 | |||
389 | procedure UnicodeRemoveNulChars(var s: WideString); |
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390 | begin |
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391 | while (Length(s) > 0) and (s[Length(s)] = #0) do |
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392 | s := Copy(s, 1, Length(s)-1); |
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393 | end; |
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394 | |||
89 | daniel-mar | 395 | function GetDriveGUID(driveLetter: AnsiChar; var guid: TGUID): DWORD; |
75 | daniel-mar | 396 | var |
93 | daniel-mar | 397 | Buffer: array[0..50] of Char; |
75 | daniel-mar | 398 | x: string; |
93 | daniel-mar | 399 | PGetVolumeNameForVolumeMountPoint: TGetVolumeNameForVolumeMountPoint; |
75 | daniel-mar | 400 | RBHandle: THandle; |
401 | begin |
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402 | RBHandle := LoadLibrary(kernel32); |
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403 | try |
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404 | if RBHandle <> 0 then |
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405 | begin |
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93 | daniel-mar | 406 | PGetVolumeNameForVolumeMountPoint := GetProcAddress(RBHandle, C_GetVolumeNameForVolumeMountPoint); |
407 | if not Assigned(@PGetVolumeNameForVolumeMountPoint) then |
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75 | daniel-mar | 408 | begin |
409 | result := GetLastError; |
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410 | FreeLibrary(RBHandle); |
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411 | RBHandle := 0; |
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412 | end |
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413 | else |
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414 | begin |
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93 | daniel-mar | 415 | if PGetVolumeNameForVolumeMountPoint(PChar(driveLetter+':\'), Buffer, SizeOf(Buffer)) then |
75 | daniel-mar | 416 | begin |
89 | daniel-mar | 417 | x := string(buffer); |
75 | daniel-mar | 418 | x := copy(x, 11, 38); |
419 | guid := StringToGUID(x); |
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420 | result := ERROR_SUCCESS; |
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421 | end |
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422 | else |
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423 | result := GetLastError; |
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424 | end; |
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425 | end |
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426 | else result := GetLastError; |
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427 | finally |
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428 | if RBHandle <> 0 then FreeLibrary(RBHandle); |
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429 | end; |
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430 | end; |
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431 | |||
432 | function FileTimeToDateTime(FileTime: FILETIME): TDateTime; |
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433 | {$IFDEF FILETIME_DELPHI_CODE} |
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434 | var |
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435 | SystemTime: TSystemTime; |
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436 | nowUTC: TDateTime; |
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437 | gmtDifference: int64; |
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438 | begin |
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439 | GetSystemTime(SystemTime); |
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440 | with SystemTime do |
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441 | begin |
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442 | // http://www.delphipraxis.net/post340194.html#34019 |
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443 | nowUTC := EncodeDate(wYear, wMonth, wDay) + |
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444 | EncodeTime(wHour, wMinute, wSecond, wMilliseconds); |
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445 | end; |
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446 | |||
447 | gmtDifference := datetimetounix(nowUTC) - datetimetounix(Now); |
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448 | |||
449 | // http://www.e-fense.com/helix/Docs/Recycler_Bin_Record_Reconstruction.pdf states: |
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450 | // UnixTime = 0.0000001 * NTTime + 11644473600 |
||
451 | // This is wrong! The correct formula is: |
||
452 | // UnixTime = 0.0000001 * NTTime - 11644473600 + c * 3600 |
||
453 | // c = GMT-Difference (MEZ = 1) inclusive daylight saving time (+3600 seconds) |
||
454 | result := unixtodatetime(round(0.0000001 * int64(FileTime)) - 11644473600 - gmtDifference); |
||
455 | {$ELSE} |
||
456 | var |
||
457 | LocalTime: TFileTime; |
||
458 | DOSTime: Integer; |
||
459 | begin |
||
460 | FileTimeToLocalFileTime(FileTime, LocalTime); |
||
461 | FileTimeToDosDateTime(LocalTime, LongRec(DOSTime).Hi, LongRec(DOSTime).Lo); |
||
462 | Result := FileDateToDateTime(DOSTime); |
||
463 | {$ENDIF} |
||
464 | end; |
||
465 | |||
466 | function DeleteDirectory(const Name: string): boolean; |
||
467 | var |
||
468 | F: TSearchRec; |
||
469 | begin |
||
470 | result := true; |
||
471 | if FindFirst(IncludeTrailingPathDelimiter(Name) + '*', faAnyFile, F) = 0 then |
||
472 | begin |
||
473 | try |
||
474 | repeat |
||
475 | if F.Attr and faDirectory <> 0 then |
||
476 | begin |
||
477 | if (F.Name <> '.') and (F.Name <> '..') then |
||
478 | begin |
||
479 | result := result and DeleteDirectory(IncludeTrailingPathDelimiter(Name) + F.Name); |
||
480 | end; |
||
481 | end |
||
482 | else |
||
483 | begin |
||
484 | if not DeleteFile(IncludeTrailingPathDelimiter(Name) + F.Name) then result := false; |
||
485 | end; |
||
486 | until FindNext(F) <> 0; |
||
487 | finally |
||
488 | FindClose(F); |
||
489 | end; |
||
490 | if not RemoveDir(Name) then result := false; |
||
491 | end; |
||
492 | end; |
||
493 | |||
89 | daniel-mar | 494 | function DriveLetterToDriveNumber(driveLetter: AnsiChar): integer; |
75 | daniel-mar | 495 | var |
496 | tmp: string; |
||
497 | begin |
||
89 | daniel-mar | 498 | tmp := LowerCase(string(driveLetter)); |
75 | daniel-mar | 499 | result := Ord(tmp[1])-Ord('a'); |
500 | end; |
||
501 | |||
502 | function GetStringFromDLL(filename: string; num: integer): string; |
||
503 | const |
||
504 | // Source: http://www.eggheadcafe.com/forumarchives/vcmfc/sep2005/post23917443.asp |
||
505 | MAX_BUF = 4097; // OK? |
||
506 | var |
||
507 | hLib: THandle; |
||
508 | buf: array[0..MAX_BUF] of char; |
||
509 | begin |
||
510 | hLib := LoadLibrary(PChar(filename)); |
||
511 | try |
||
512 | LoadString(hLib, num, buf, sizeof(buf)); |
||
513 | result := buf; |
||
514 | finally |
||
515 | FreeLibrary(hLib); |
||
516 | end; |
||
517 | end; |
||
518 | |||
519 | function ExpandEnvStr(const szInput: string): string; |
||
520 | const |
||
521 | MAXSIZE = 32768; // laut PSDK sind 32k das Maximum |
||
522 | begin |
||
523 | // Source: http://www.delphi-library.de/topic_Umgebungsvariable+in+einem+String+aufloesen_20516,0.html |
||
524 | SetLength(Result,MAXSIZE); |
||
525 | SetLength(Result,ExpandEnvironmentStrings(pchar(szInput), |
||
526 | @Result[1],length(Result))-1); //-1 um abschließendes #0 zu verwerfen |
||
527 | end; |
||
528 | |||
529 | function DecodeReferenceString(s: string): string; |
||
530 | var |
||
531 | dll, id, lang, cache: string; |
||
532 | sl, sl2: tstringlist; |
||
533 | begin |
||
534 | // Beispiele |
||
535 | // Papierkorb -- Windows 95 |
||
536 | // @C:\WINNT\system32\shell32.dll,-8964@1031,Papierkorb -- Windows 2000 |
||
537 | |||
538 | if Copy(s, 1, 1) = '@' then |
||
539 | begin |
||
540 | // Referenz auf eine DLL |
||
541 | // @<dll>,-<id>[@<lang>][,<cache>] |
||
542 | |||
543 | sl := TStringList.Create; |
||
544 | try |
||
545 | // '@' am Anfang entfernen |
||
546 | s := Copy(s, 2, length(s)-1); |
||
547 | |||
548 | // Nach ',' auftrennen |
||
549 | // sl[0] --> dll |
||
550 | // sl[1] --> -id@lang |
||
551 | // sl[2] --> cache |
||
552 | sl.CommaText := s; |
||
553 | |||
554 | if sl.Count > 2 then |
||
555 | begin |
||
556 | // Das Ergebnis ist bereits im Klartext vorhanden und muss nicht extrahiert werden |
||
557 | // Ist bei Windows 2000 der Fall |
||
558 | cache := sl[2]; |
||
559 | result := cache; |
||
560 | exit; |
||
561 | end; |
||
562 | |||
563 | if sl.Count > 1 then |
||
564 | begin |
||
565 | dll := sl[0]; |
||
566 | |||
567 | sl2 := TStringList.Create; |
||
568 | try |
||
569 | // Nach '@' auftrennen |
||
570 | // sl2[0] --> id |
||
571 | // sl2[1] --> lang |
||
572 | sl2.CommaText := StringReplace(sl[1], '@', ',', [rfReplaceAll]); |
||
573 | |||
574 | id := sl2[0]; |
||
575 | |||
576 | if sl2.Count > 1 then |
||
577 | begin |
||
578 | // ToDo: In Zukunft beachten, sofern möglich |
||
579 | lang := sl2[1]; |
||
580 | end; |
||
581 | |||
582 | // Umgebungsvariablen erkennen und Minuszeichen entfernen |
||
583 | result := GetStringFromDLL(ExpandEnvStr(dll), -StrToInt(id)); |
||
584 | finally |
||
585 | sl2.Free; |
||
586 | end; |
||
587 | end |
||
588 | else |
||
589 | begin |
||
590 | // Zu wenige Informationen! |
||
591 | |||
592 | result := ''; |
||
593 | end; |
||
594 | finally |
||
595 | sl.Free; |
||
596 | end; |
||
597 | end |
||
598 | else |
||
599 | begin |
||
600 | // Kein Hinweis auf eine Referenz |
||
601 | result := s; |
||
602 | end; |
||
603 | end; |
||
604 | |||
605 | function GPBoolToString(value: GPOLICYBOOL): string; |
||
606 | begin |
||
607 | case value of |
||
608 | gpUndefined: result := 'Not configured'; |
||
609 | gpEnabled: result := 'Enabled'; |
||
610 | gpDisabled: result := 'Disabled'; |
||
611 | end; |
||
612 | end; |
||
613 | |||
614 | { TRbRecycleBin } |
||
615 | |||
616 | constructor TRbRecycleBin.Create(AFileOrDirectory: string; ASID: string=''); |
||
617 | begin |
||
618 | inherited Create; |
||
619 | |||
620 | FFileOrDirectory := AFileOrDirectory; |
||
621 | FSID := ASID; |
||
76 | daniel-mar | 622 | TolerantReading := true; |
75 | daniel-mar | 623 | end; |
624 | |||
625 | // TODO: also a function that tests if the data files are still existing |
||
626 | function TRbRecycleBin.CheckIndexes(slErrors: TStrings): boolean; |
||
627 | |||
628 | procedure _Assert(assertion: boolean; msg: string; args: array of const); |
||
629 | begin |
||
630 | if not assertion then |
||
631 | begin |
||
632 | slErrors.Add(Format(msg, args)); |
||
633 | result := false; |
||
634 | end; |
||
635 | end; |
||
636 | |||
637 | procedure _HandleIndexFile(AFile: string); |
||
638 | var |
||
639 | fs: TFileStream; |
||
76 | daniel-mar | 640 | infoHdr: TRbInfoHeader; |
75 | daniel-mar | 641 | resourcestring |
642 | LNG_IDXERR_VISTA_FILESIZE = '%s: Vista index file has wrong size'; |
||
643 | LNG_IDXERR_INFO_RECSIZE_UNEXPECTED = '%s: record size unexpected'; |
||
644 | LNG_IDXERR_INFO_UNEXPECTED_EOF = '%s: file size wrong'; |
||
645 | begin |
||
646 | fs := TFileStream.Create(AFile, fmOpenRead); |
||
647 | try |
||
648 | fs.Seek(0, soFromBeginning); |
||
649 | |||
650 | if SameText(copy(ExtractFileName(AFile), 1, 2), '$I') then |
||
651 | begin |
||
652 | _Assert(fs.Size = SizeOf(TRbVistaItem), LNG_IDXERR_VISTA_FILESIZE, [AFile]); |
||
653 | end |
||
76 | daniel-mar | 654 | else if SameText(ExtractFileName(AFile), 'INFO') or |
655 | SameText(ExtractFileName(AFile), 'INFO2') then |
||
75 | daniel-mar | 656 | begin |
657 | fs.ReadBuffer(infoHdr, SizeOf(infoHdr)); |
||
76 | daniel-mar | 658 | _Assert((infoHdr.recordLength = SizeOf(TRbInfoRecordA)) or |
659 | (infoHdr.recordLength = SizeOf(TRbInfoRecordW)), LNG_IDXERR_INFO_RECSIZE_UNEXPECTED, [AFile]); |
||
75 | daniel-mar | 660 | _Assert((fs.Size-fs.Position) mod infoHdr.recordLength = 0, LNG_IDXERR_INFO_UNEXPECTED_EOF, [AFile]); |
76 | daniel-mar | 661 | // TODO: we can also check infoHdr.totalSize or infoHdr.totalEntries |
75 | daniel-mar | 662 | end |
76 | daniel-mar | 663 | else Assert(false); |
75 | daniel-mar | 664 | |
665 | // TODO: we could check each item for invalid stuff...? |
||
666 | finally |
||
667 | FreeAndNil(fs); |
||
668 | end; |
||
669 | end; |
||
670 | |||
671 | procedure _HandleVistaDir(ADirectory: string); |
||
672 | var |
||
673 | SR: TSearchRec; |
||
674 | begin |
||
675 | ADirectory := IncludeTrailingPathDelimiter(ADirectory); |
||
676 | |||
677 | if FindFirst(ADirectory + '$I*', faAnyFile, SR) = 0 then |
||
678 | begin |
||
679 | repeat |
||
680 | _HandleIndexFile(ADirectory+sr.Name); |
||
681 | until FindNext(SR) <> 0; |
||
682 | end; |
||
683 | FindClose(SR); |
||
684 | end; |
||
685 | |||
686 | begin |
||
687 | result := true; |
||
688 | |||
689 | if DirectoryExists(FFileOrDirectory) then // Vista, as well as directories with INFO and INFO2 |
||
690 | begin |
||
691 | _HandleVistaDir(FFileOrDirectory); |
||
692 | |||
693 | if FileExists(IncludeTrailingPathDelimiter(FFileOrDirectory) + 'INFO2') then |
||
694 | begin |
||
695 | _HandleIndexFile(IncludeTrailingPathDelimiter(FFileOrDirectory) + 'INFO2'); |
||
696 | end; |
||
697 | |||
698 | if FileExists(IncludeTrailingPathDelimiter(FFileOrDirectory) + 'INFO') then |
||
699 | begin |
||
700 | _HandleIndexFile(IncludeTrailingPathDelimiter(FFileOrDirectory) + 'INFO'); |
||
701 | end; |
||
702 | end |
||
703 | else if FileExists(FFileOrDirectory) then |
||
704 | begin |
||
705 | _HandleIndexFile(FFileOrDirectory); |
||
706 | end |
||
707 | else raise Exception.CreateFmt(LNG_FILE_NOT_FOUND, [FFileOrDirectory]); |
||
708 | end; |
||
709 | |||
710 | function TRbRecycleBin.GetItem(id: string): TRbRecycleBinItem; |
||
711 | |||
712 | procedure _HandleIndexFile(AFile: string); |
||
713 | var |
||
714 | fs: TFileStream; |
||
76 | daniel-mar | 715 | infoHdr: TRbInfoHeader; |
75 | daniel-mar | 716 | testItem: TRbRecycleBinItem; |
717 | begin |
||
718 | fs := TFileStream.Create(AFile, fmOpenRead); |
||
719 | try |
||
720 | fs.Seek(0, soFromBeginning); |
||
721 | |||
82 | daniel-mar | 722 | if SameText(ExtractFileName(AFile), '$I'+id) then |
75 | daniel-mar | 723 | begin |
82 | daniel-mar | 724 | result := TRbVistaItem.Create(fs, AFile, id); |
75 | daniel-mar | 725 | end |
726 | else |
||
727 | begin |
||
728 | fs.ReadBuffer(infoHdr, SizeOf(infoHdr)); |
||
729 | case infoHdr.recordLength of |
||
76 | daniel-mar | 730 | SizeOf(TRbInfoRecordA): |
75 | daniel-mar | 731 | begin |
732 | while fs.Position < fs.size do |
||
733 | begin |
||
76 | daniel-mar | 734 | testItem := TRbInfoAItem.Create(fs, AFile); |
75 | daniel-mar | 735 | if testItem.ID = id then |
736 | begin |
||
737 | result := testItem; |
||
738 | break; |
||
739 | end; |
||
740 | end; |
||
741 | end; |
||
76 | daniel-mar | 742 | SizeOf(TRbInfoRecordW): |
75 | daniel-mar | 743 | begin |
744 | while fs.Position < fs.size do |
||
745 | begin |
||
76 | daniel-mar | 746 | testItem := TRbInfoWItem.Create(fs, AFile); |
75 | daniel-mar | 747 | if testItem.ID = id then |
748 | begin |
||
749 | result := testItem; |
||
750 | break; |
||
751 | end; |
||
752 | end; |
||
753 | end |
||
754 | else |
||
755 | begin |
||
756 | raise Exception.CreateFmt(LNG_INVALID_INFO_FORMAT, [AFile]); |
||
757 | end; |
||
758 | end; |
||
759 | end; |
||
760 | finally |
||
761 | FreeAndNil(fs); |
||
762 | end; |
||
763 | end; |
||
764 | |||
765 | procedure _HandleVistaDir(ADirectory: string); |
||
766 | var |
||
767 | SR: TSearchRec; |
||
768 | fs: TFileStream; |
||
769 | id: string; |
||
770 | begin |
||
771 | ADirectory := IncludeTrailingPathDelimiter(ADirectory); |
||
772 | |||
773 | if FileExists(ADirectory + '$I' + id) then |
||
774 | begin |
||
775 | fs := TFileStream.Create(ADirectory+sr.Name, fmOpenRead); |
||
776 | try |
||
777 | fs.Seek(0, soFromBeginning); |
||
778 | result := TRbVistaItem.Create(fs, ADirectory+sr.Name, id); |
||
779 | finally |
||
780 | FreeAndNil(fs); |
||
781 | end; |
||
782 | end; |
||
783 | end; |
||
784 | |||
785 | begin |
||
786 | result := nil; |
||
787 | |||
788 | if DirectoryExists(FFileOrDirectory) then // Vista, as well as directories with INFO and INFO2 |
||
789 | begin |
||
790 | _HandleVistaDir(FFileOrDirectory); |
||
791 | if Assigned(result) then exit; |
||
792 | |||
793 | if FileExists(IncludeTrailingPathDelimiter(FFileOrDirectory) + 'INFO2') then |
||
794 | begin |
||
795 | _HandleIndexFile(IncludeTrailingPathDelimiter(FFileOrDirectory) + 'INFO2'); |
||
796 | if Assigned(result) then exit; |
||
797 | end; |
||
798 | |||
799 | if FileExists(IncludeTrailingPathDelimiter(FFileOrDirectory) + 'INFO') then |
||
800 | begin |
||
801 | _HandleIndexFile(IncludeTrailingPathDelimiter(FFileOrDirectory) + 'INFO'); |
||
802 | if Assigned(result) then exit; |
||
803 | end; |
||
804 | end |
||
805 | else if FileExists(FFileOrDirectory) then |
||
806 | begin |
||
807 | _HandleIndexFile(FFileOrDirectory); |
||
808 | if Assigned(result) then exit; |
||
809 | end |
||
810 | else raise Exception.CreateFmt(LNG_FILE_NOT_FOUND, [FFileOrDirectory]); |
||
811 | end; |
||
812 | |||
813 | procedure TRbRecycleBin.ListItems(list: TObjectList{TRbRecycleBinItem}); |
||
814 | |||
815 | procedure _HandleIndexFile(AFile: string); |
||
816 | var |
||
817 | fs: TFileStream; |
||
76 | daniel-mar | 818 | infoHdr: TRbInfoHeader; |
99 | daniel-mar | 819 | vistaId: string; |
76 | daniel-mar | 820 | wTest: TRbInfoWItem; |
821 | bakPosition: int64; |
||
99 | daniel-mar | 822 | testVistaItem: TRbVistaItem; |
75 | daniel-mar | 823 | begin |
824 | fs := TFileStream.Create(AFile, fmOpenRead); |
||
825 | try |
||
826 | fs.Seek(0, soFromBeginning); |
||
827 | |||
99 | daniel-mar | 828 | {$REGION 'First try if it is a Vista index file'} |
829 | testVistaItem := nil; |
||
82 | daniel-mar | 830 | if SameText(copy(ExtractFileName(AFile), 1, 2), '$I') then |
75 | daniel-mar | 831 | begin |
99 | daniel-mar | 832 | vistaId := copy(AFile, 3, Length(AFile)-2); |
833 | testVistaItem := TRbVistaItem.Create(fs, AFile, vistaId); |
||
75 | daniel-mar | 834 | end |
835 | else |
||
836 | begin |
||
99 | daniel-mar | 837 | vistaId := ''; // manual file that was not named $I..., so we cannot get $R... ID and therefore no physical file! |
838 | try |
||
839 | testVistaItem := TRbVistaItem.Create(fs, AFile, vistaId); |
||
100 | daniel-mar | 840 | if (Copy(testVistaItem.Source,2,2) <> ':\') and |
841 | (Copy(testVistaItem.Source,2,2) <> '\\') then |
||
99 | daniel-mar | 842 | FreeAndNil(testVistaItem); |
843 | except |
||
844 | testVistaItem := nil; |
||
845 | end; |
||
846 | end; |
||
847 | {$ENDREGION} |
||
848 | |||
849 | if Assigned(testVistaItem) then |
||
850 | begin |
||
851 | list.Add(testVistaItem); |
||
852 | end |
||
853 | else |
||
854 | begin |
||
855 | fs.Seek(0, soFromBeginning); |
||
76 | daniel-mar | 856 | if TolerantReading then |
857 | begin |
||
858 | // This is a special treatment how to recover data from an INFO/INFO2 file |
||
859 | // which was corrupted by an incompatible multiboot configuration. |
||
860 | // Example: |
||
861 | // - Win95 without IE4 and WinNT4 both write into the INFO file. But Win95 appends the ANSI record and WinNT appends an Unicode record. |
||
862 | // - Win95 with IE4 and Windows 2000/2003/XP write into the INFO2 file. But Win9x appends the ANSI record and Win2k+ appends an Unicode record. |
||
863 | fs.ReadBuffer(infoHdr, SizeOf(infoHdr)); |
||
864 | while fs.Position < fs.size do |
||
75 | daniel-mar | 865 | begin |
76 | daniel-mar | 866 | // Can we actually read a Unicode record? |
867 | if fs.Position + SizeOf(TRbInfoRecordW) <= fs.Size then |
||
75 | daniel-mar | 868 | begin |
76 | daniel-mar | 869 | // Try to read the Unicode record and check if it is valid |
870 | // In case it is no Unicode record, then the Unicode part will be the |
||
871 | // ANSI source name of the next record. In this case, we won't get |
||
100 | daniel-mar | 872 | // a ':\' or '\\' at the Unicode string. |
76 | daniel-mar | 873 | bakPosition := fs.Position; |
874 | wTest := TRbInfoWItem.Create(fs, AFile); |
||
100 | daniel-mar | 875 | if (Copy(wTest.SourceUnicode, 2, 2) = ':\') or |
876 | (Copy(wTest.SourceUnicode, 2, 2) = '\\') then |
||
76 | daniel-mar | 877 | begin |
878 | // Yes, it is a valid Unicode record. |
||
879 | list.Add(wTest); |
||
880 | end |
||
881 | else |
||
882 | begin |
||
883 | // No, it is not a valid Unicode record. Jump back, and we need |
||
884 | // to assume that the following record will be a valid ANSI record. |
||
885 | fs.Position := bakPosition; |
||
886 | list.Add(TRbInfoAItem.Create(fs, AFile)); |
||
887 | end; |
||
888 | end |
||
99 | daniel-mar | 889 | else if fs.Position + SizeOf(TRbInfoRecordA) <= fs.Size then |
76 | daniel-mar | 890 | begin |
891 | // No, there is not enough space left for an Unicode record. |
||
892 | // So we assume that the following record will be a valid ANSI record. |
||
893 | list.Add(TRbInfoAItem.Create(fs, AFile)); |
||
99 | daniel-mar | 894 | end |
895 | else |
||
896 | begin |
||
101 | daniel-mar | 897 | // Not enough space to read a ANSI record! |
99 | daniel-mar | 898 | // Ignore it |
75 | daniel-mar | 899 | end; |
900 | end; |
||
76 | daniel-mar | 901 | end |
902 | else |
||
903 | begin |
||
904 | // This is the code for non-tolerant reading of the records. |
||
905 | fs.ReadBuffer(infoHdr, SizeOf(infoHdr)); |
||
906 | case infoHdr.recordLength of |
||
907 | SizeOf(TRbInfoRecordA): |
||
75 | daniel-mar | 908 | begin |
76 | daniel-mar | 909 | while fs.Position < fs.size do |
910 | begin |
||
911 | list.Add(TRbInfoAItem.Create(fs, AFile)); |
||
912 | end; |
||
75 | daniel-mar | 913 | end; |
76 | daniel-mar | 914 | SizeOf(TRbInfoRecordW): |
915 | begin |
||
916 | while fs.Position < fs.size do |
||
917 | begin |
||
918 | list.Add(TRbInfoWItem.Create(fs, AFile)); |
||
919 | end; |
||
920 | end |
||
921 | else |
||
922 | begin |
||
923 | raise Exception.CreateFmt(LNG_INVALID_INFO_FORMAT, [AFile]); |
||
924 | end; |
||
75 | daniel-mar | 925 | end; |
926 | end; |
||
927 | end; |
||
928 | finally |
||
929 | FreeAndNil(fs); |
||
930 | end; |
||
931 | end; |
||
932 | |||
106 | daniel-mar | 933 | // TODO: Nice would be some progress callback function |
75 | daniel-mar | 934 | procedure _HandleVistaDir(ADirectory: string); |
935 | var |
||
936 | SR: TSearchRec; |
||
937 | fs: TFileStream; |
||
938 | id: string; |
||
939 | begin |
||
940 | ADirectory := IncludeTrailingPathDelimiter(ADirectory); |
||
941 | |||
106 | daniel-mar | 942 | //if FindFirst(ADirectory + '$I*', faAnyFile, SR) = 0 then |
943 | if FindFirst(ADirectory + '*', faAnyFile, SR) = 0 then |
||
75 | daniel-mar | 944 | begin |
945 | repeat |
||
106 | daniel-mar | 946 | // FindFirst filter '$I*' finds the file '$RJK3R4P.~43~' and '$RJB99A3.~55~' (yes, $R !!!) Why?! |
947 | // ... so, we just filter for '*' and try to find the '$I*' files ourselves... |
||
948 | if UpperCase(Copy(sr.Name,1,2)) = '$I' then |
||
949 | begin |
||
950 | id := sr.Name; |
||
951 | { id := ChangeFileExt(id, ''); } // Removed code: We keep the file extention as part of the ID, because we do not know if the ID is otherwise unique |
||
952 | id := Copy(id, 3, Length(id)-2); |
||
75 | daniel-mar | 953 | |
106 | daniel-mar | 954 | fs := TFileStream.Create(ADirectory+sr.Name, fmOpenRead); |
955 | try |
||
956 | fs.Seek(0, soFromBeginning); |
||
957 | list.Add(TRbVistaItem.Create(fs, ADirectory+sr.Name, id)); |
||
958 | finally |
||
959 | FreeAndNil(fs); |
||
960 | end; |
||
75 | daniel-mar | 961 | end; |
962 | until FindNext(SR) <> 0; |
||
963 | end; |
||
964 | FindClose(SR); |
||
965 | end; |
||
966 | |||
967 | begin |
||
968 | if DirectoryExists(FFileOrDirectory) then // Vista, as well as directories with INFO and INFO2 |
||
969 | begin |
||
970 | _HandleVistaDir(FFileOrDirectory); |
||
971 | |||
972 | if FileExists(IncludeTrailingPathDelimiter(FFileOrDirectory) + 'INFO2') then |
||
973 | begin |
||
974 | _HandleIndexFile(IncludeTrailingPathDelimiter(FFileOrDirectory) + 'INFO2'); |
||
975 | end; |
||
976 | |||
977 | if FileExists(IncludeTrailingPathDelimiter(FFileOrDirectory) + 'INFO') then |
||
978 | begin |
||
979 | _HandleIndexFile(IncludeTrailingPathDelimiter(FFileOrDirectory) + 'INFO'); |
||
980 | end; |
||
981 | end |
||
982 | else if FileExists(FFileOrDirectory) then |
||
983 | begin |
||
76 | daniel-mar | 984 | _HandleIndexFile(FFileOrDirectory); // Either INFO, or INFO2, or a single Vista index file |
75 | daniel-mar | 985 | end |
986 | else raise Exception.CreateFmt(LNG_FILE_NOT_FOUND, [FFileOrDirectory]); |
||
987 | end; |
||
988 | |||
989 | { TRbDrive } |
||
990 | |||
991 | procedure TRbDrive.CheckDriveExisting; |
||
992 | begin |
||
993 | // Does the drive exist? |
||
994 | // see http://www.delphipraxis.net/post2933.html |
||
78 | daniel-mar | 995 | if not GetLogicalDrives and (1 shl DriveNumber) <> 0 then |
75 | daniel-mar | 996 | begin |
89 | daniel-mar | 997 | raise EInvalidDrive.CreateFmt(LNG_DRIVE_NOT_EXISTING, [UpperCase(string(FDriveLetter))+':']); |
75 | daniel-mar | 998 | end; |
999 | end; |
||
1000 | |||
89 | daniel-mar | 1001 | constructor TRbDrive.Create(ADriveLetter: AnsiChar); |
75 | daniel-mar | 1002 | begin |
1003 | inherited Create; |
||
1004 | |||
1005 | FDriveLetter := ADriveLetter; |
||
1006 | CheckDriveExisting; |
||
1007 | end; |
||
1008 | |||
78 | daniel-mar | 1009 | function TRbDrive.DiskSize: integer; |
1010 | begin |
||
1011 | result := SysUtils.DiskSize(DriveNumber+1 {0 is current, 1 is A}) div (1024*1024); |
||
1012 | end; |
||
1013 | |||
1014 | function TRbDrive.DriveNumber: integer; |
||
1015 | begin |
||
1016 | result := DriveLetterToDriveNumber(FDriveLetter); |
||
1017 | end; |
||
1018 | |||
75 | daniel-mar | 1019 | function TRbDrive.GetAPIInfo: TSHQueryRBInfo; |
1020 | var |
||
1021 | PSHQueryRecycleBin: TSHQueryRecycleBin; |
||
1022 | RBHandle: THandle; |
||
1023 | res: HRESULT; |
||
1024 | Path: string; |
||
1025 | begin |
||
1026 | Path := FDriveLetter + ':\'; |
||
1027 | |||
1028 | // Ref: http://www.delphipraxis.net/post1291.html |
||
1029 | |||
1030 | RBHandle := LoadLibrary(shell32); |
||
1031 | try |
||
1032 | PSHQueryRecycleBin := nil; |
||
1033 | if RBHandle <> 0 then |
||
1034 | begin |
||
1035 | PSHQueryRecycleBin := GetProcAddress(RBHandle, C_SHQueryRecycleBin); |
||
1036 | if not Assigned(@PSHQueryRecycleBin) then |
||
1037 | begin |
||
1038 | FreeLibrary(RBHandle); |
||
1039 | RBHandle := 0; |
||
1040 | end; |
||
1041 | end; |
||
1042 | |||
1043 | FillChar(result, SizeOf(TSHQueryRBInfo), 0); |
||
1044 | result.cbSize := SizeOf(TSHQueryRBInfo); |
||
1045 | |||
1046 | if (RBHandle <> 0) and Assigned(PSHQueryRecycleBin) then |
||
1047 | begin |
||
1048 | res := PSHQueryRecycleBin(PChar(Path), result); |
||
1049 | // if Succeeded(res) then |
||
1050 | if res = S_OK then |
||
1051 | begin |
||
1052 | // Alles OK, unser result hat nun die gewünschten Daten. |
||
1053 | end |
||
1054 | else |
||
1055 | begin |
||
1056 | // Since Windows Vista, SHQueryRecycleBin will fail with E_FAIL (80004005) |
||
1057 | // if Path is a floppy or CD drive... |
||
1058 | raise EAPICallError.CreateFmt(LNG_API_CALL_ERROR, [Format(LNG_ERROR_CODE, [C_SHQueryRecycleBin, Path, '0x'+IntToHex(res, 2*SizeOf(HRESULT))])]); |
||
1059 | end; |
||
1060 | end |
||
1061 | else |
||
1062 | raise EAPICallError.CreateFmt(LNG_API_CALL_ERROR, [Format(LNG_NOT_CALLABLE, [C_SHQueryRecycleBin])]); |
||
1063 | finally |
||
1064 | if RBHandle <> 0 then FreeLibrary(RBHandle); |
||
1065 | end; |
||
1066 | end; |
||
1067 | |||
78 | daniel-mar | 1068 | function TRbDrive.GetMaxPercentUsage: Extended; |
75 | daniel-mar | 1069 | var |
78 | daniel-mar | 1070 | abs: integer; // in MB |
1071 | rel: integer; // in % (0-100) |
||
1072 | gpSetting: integer; |
||
1073 | const |
||
1074 | DEFAULT_PERCENT = 10; // Windows 95 default |
||
1075 | begin |
||
1076 | gpSetting := TRecycleBinManager.RecyclerGroupPolicyRecycleBinSize; |
||
1077 | if gpSetting <> -1 then |
||
1078 | result := gpSetting / 100 |
||
1079 | else if TRecycleBinManager.UsesGlobalSettings then |
||
1080 | result := TRecycleBinManager.GetGlobalMaxPercentUsage / 100 |
||
1081 | else if OldCapacityPercent(rel) then |
||
1082 | begin |
||
1083 | result := rel / 100; |
||
1084 | end |
||
1085 | else if NewCapacityAbsolute(abs) then |
||
1086 | begin |
||
1087 | result := abs / DiskSize; |
||
1088 | end |
||
1089 | else |
||
1090 | begin |
||
1091 | result := DEFAULT_PERCENT / 100; |
||
1092 | end; |
||
1093 | end; |
||
1094 | |||
1095 | function TRbDrive.GetMaxAbsoluteUsage: integer; |
||
1096 | var |
||
1097 | abs: integer; // in MB |
||
1098 | rel: integer; // in % (0-100) |
||
1099 | gpSetting: integer; |
||
1100 | const |
||
1101 | DEFAULT_PERCENT = 10; // Windows 95 default |
||
1102 | begin |
||
1103 | gpSetting := TRecycleBinManager.RecyclerGroupPolicyRecycleBinSize; |
||
1104 | if gpSetting <> -1 then |
||
1105 | result := Ceil(gpSetting/100 * DiskSize) |
||
1106 | else if TRecycleBinManager.UsesGlobalSettings then |
||
1107 | result := Ceil(TRecycleBinManager.GetGlobalMaxPercentUsage/100 * DiskSize) |
||
1108 | else if NewCapacityAbsolute(abs) then |
||
1109 | begin |
||
1110 | result := abs; |
||
1111 | end |
||
1112 | else if OldCapacityPercent(rel) then |
||
1113 | begin |
||
1114 | result := Ceil(rel/100 * DiskSize); |
||
1115 | end |
||
1116 | else |
||
1117 | begin |
||
1118 | result := Ceil(DEFAULT_PERCENT/100 * DiskSize); |
||
1119 | end; |
||
1120 | end; |
||
1121 | |||
1122 | function TRbDrive.OldCapacityPercent(var res: integer): boolean; |
||
1123 | var |
||
75 | daniel-mar | 1124 | reg: TRegistry; |
1125 | purgeInfo: TRbWin95PurgeInfo; |
||
1126 | begin |
||
78 | daniel-mar | 1127 | if Win32MajorVersion >= 6 then |
1128 | begin |
||
1129 | // Only available till Windows XP |
||
1130 | result := false; |
||
1131 | exit; |
||
1132 | end; |
||
75 | daniel-mar | 1133 | |
78 | daniel-mar | 1134 | result := false; |
1135 | |||
75 | daniel-mar | 1136 | reg := TRegistry.Create; |
1137 | try |
||
1138 | reg.RootKey := HKEY_LOCAL_MACHINE; |
||
1139 | |||
1140 | // Im Auslieferungszustand von Windows 95 ist dieser Schlüssel nicht vorhanden. |
||
1141 | // Er wird bei der ersten Änderung der Papierkorb-Einstellungen erstellt. |
||
1142 | if reg.OpenKeyReadOnly('SOFTWARE\Microsoft\Windows\CurrentVersion\explorer\BitBucket') then |
||
1143 | begin |
||
89 | daniel-mar | 1144 | if reg.OpenKeyReadOnly(string(FDriveLetter)) then |
75 | daniel-mar | 1145 | begin |
1146 | if reg.ValueExists('Percent') then |
||
1147 | begin |
||
1148 | // Windows 2000 - Informationen liegen aufgeschlüsselt in der Registry |
||
1149 | |||
78 | daniel-mar | 1150 | res := reg.ReadInteger('Percent'); |
1151 | result := true; |
||
75 | daniel-mar | 1152 | end; |
1153 | end |
||
1154 | else |
||
1155 | begin |
||
1156 | if reg.ValueExists('PurgeInfo') then |
||
1157 | begin |
||
1158 | // Windows 95 - Kodierte Informationen liegen in PurgeInfo |
||
1159 | |||
1160 | reg.ReadBinaryData('PurgeInfo', purgeInfo, SizeOf(purgeInfo)); |
||
1161 | |||
78 | daniel-mar | 1162 | res := purgeInfo.percentDrive[FDriveLetter]; |
1163 | result := true; |
||
75 | daniel-mar | 1164 | end; |
1165 | end; |
||
1166 | |||
1167 | reg.CloseKey; |
||
1168 | end; |
||
1169 | finally |
||
1170 | reg.Free; |
||
1171 | end; |
||
1172 | end; |
||
1173 | |||
78 | daniel-mar | 1174 | function TRbDrive.NewCapacityAbsolute(var res: integer): boolean; |
75 | daniel-mar | 1175 | var |
78 | daniel-mar | 1176 | reg: TRegistry; |
75 | daniel-mar | 1177 | begin |
78 | daniel-mar | 1178 | if Win32MajorVersion < 6 then |
1179 | begin |
||
1180 | // Only available since Windows Vista |
||
1181 | result := false; |
||
1182 | exit; |
||
1183 | end; |
||
75 | daniel-mar | 1184 | |
78 | daniel-mar | 1185 | result := false; |
1186 | |||
1187 | reg := TRegistry.Create; |
||
1188 | try |
||
1189 | reg.RootKey := HKEY_CURRENT_USER; |
||
1190 | |||
1191 | if reg.OpenKeyReadOnly('Software\Microsoft\Windows\CurrentVersion\Explorer\BitBucket\Volume') then |
||
1192 | begin |
||
1193 | // Windows Vista and upwards |
||
1194 | if reg.OpenKeyReadOnly(GUIDToString(VolumeGUID)) then |
||
1195 | begin |
||
1196 | res := reg.ReadInteger('MaxCapacity'); // in MB |
||
1197 | result := true; |
||
1198 | end; |
||
1199 | reg.CloseKey; |
||
1200 | end; |
||
1201 | finally |
||
1202 | reg.Free; |
||
1203 | end; |
||
75 | daniel-mar | 1204 | end; |
1205 | |||
1206 | function TRbDrive.GetNukeOnDelete: boolean; |
||
1207 | var |
||
1208 | reg: TRegistry; |
||
1209 | purgeInfo: TRbWin95PurgeInfo; |
||
1210 | const |
||
78 | daniel-mar | 1211 | RES_DEFAULT = false; // Windows 95 default |
75 | daniel-mar | 1212 | begin |
78 | daniel-mar | 1213 | if TRecycleBinManager.RecyclerGroupPolicyNoRecycleFiles = gpEnabled then |
1214 | result := true |
||
1215 | else if TRecycleBinManager.UsesGlobalSettings then |
||
1216 | result := TRecycleBinManager.GetGlobalNukeOnDelete |
||
1217 | else |
||
1218 | begin |
||
1219 | result := RES_DEFAULT; |
||
75 | daniel-mar | 1220 | |
78 | daniel-mar | 1221 | reg := TRegistry.Create; |
1222 | try |
||
1223 | reg.RootKey := HKEY_CURRENT_USER; |
||
75 | daniel-mar | 1224 | |
78 | daniel-mar | 1225 | if reg.OpenKeyReadOnly('Software\Microsoft\Windows\CurrentVersion\Explorer\BitBucket\Volume') then |
75 | daniel-mar | 1226 | begin |
78 | daniel-mar | 1227 | // Windows Vista and upwards |
1228 | if reg.OpenKeyReadOnly(GUIDToString(VolumeGUID)) then |
||
75 | daniel-mar | 1229 | begin |
1230 | result := reg.ReadBool('NukeOnDelete'); |
||
1231 | end; |
||
78 | daniel-mar | 1232 | reg.CloseKey; |
75 | daniel-mar | 1233 | end |
1234 | else |
||
1235 | begin |
||
78 | daniel-mar | 1236 | reg.RootKey := HKEY_LOCAL_MACHINE; |
1237 | |||
1238 | // Im Auslieferungszustand von Windows 95 ist dieser Schlüssel nicht vorhanden. |
||
1239 | // Er wird bei der ersten Änderung der Papierkorb-Einstellungen erstellt. |
||
1240 | if reg.OpenKeyReadOnly('SOFTWARE\Microsoft\Windows\CurrentVersion\explorer\BitBucket') then |
||
75 | daniel-mar | 1241 | begin |
89 | daniel-mar | 1242 | if reg.OpenKeyReadOnly(string(FDriveLetter)) then |
78 | daniel-mar | 1243 | begin |
1244 | if reg.ValueExists('NukeOnDelete') then |
||
1245 | begin |
||
1246 | // Windows 2000 - Informationen liegen aufgeschlüsselt in der Registry |
||
75 | daniel-mar | 1247 | |
78 | daniel-mar | 1248 | result := reg.ReadBool('NukeOnDelete'); |
1249 | end; |
||
1250 | end |
||
1251 | else |
||
1252 | begin |
||
1253 | if reg.ValueExists('PurgeInfo') then |
||
1254 | begin |
||
1255 | // Windows 95 - Kodierte Informationen liegen in PurgeInfo |
||
75 | daniel-mar | 1256 | |
78 | daniel-mar | 1257 | reg.ReadBinaryData('PurgeInfo', purgeInfo, SizeOf(purgeInfo)); |
1258 | |||
1259 | result := ((purgeInfo.NukeOnDeleteBits shr DriveNumber) and 1) = 1; |
||
1260 | end; |
||
1261 | end; |
||
1262 | |||
1263 | reg.CloseKey; |
||
75 | daniel-mar | 1264 | end; |
1265 | end; |
||
78 | daniel-mar | 1266 | finally |
1267 | reg.Free; |
||
75 | daniel-mar | 1268 | end; |
1269 | end; |
||
1270 | end; |
||
1271 | |||
1272 | function TRbDrive.GetNumItems: int64; |
||
1273 | begin |
||
1274 | result := GetAPIInfo.i64NumItems; |
||
1275 | end; |
||
1276 | |||
1277 | function TRbDrive.GetSize: int64; |
||
1278 | begin |
||
1279 | result := GetAPIInfo.i64Size; |
||
1280 | end; |
||
1281 | |||
1282 | function TRbDrive.GetVolumeGUID: TGUID; |
||
1283 | begin |
||
1284 | if GetDriveGUID(FDriveLetter, result) <> ERROR_SUCCESS then |
||
1285 | begin |
||
1286 | result := NULL_GUID; |
||
1287 | end; |
||
1288 | end; |
||
1289 | |||
77 | daniel-mar | 1290 | function TRbDrive.GetVolumeGUIDAvailable: boolean; |
1291 | begin |
||
1292 | result := not IsEqualGUID(VolumeGUID, NULL_GUID); |
||
1293 | end; |
||
1294 | |||
75 | daniel-mar | 1295 | function TRbDrive.IsEmpty: boolean; |
1296 | begin |
||
1297 | result := GetNumItems = 0; |
||
1298 | end; |
||
1299 | |||
1300 | function TRbDrive.IsFAT: boolean; |
||
1301 | var |
||
1302 | Dummy2: DWORD; |
||
1303 | Dummy3: DWORD; |
||
99 | daniel-mar | 1304 | FileSystem: array[0..MAX_PATH-1] of char; |
1305 | VolumeName: array[0..MAX_PATH-1] of char; |
||
75 | daniel-mar | 1306 | s: string; |
1307 | begin |
||
1308 | s := FDriveLetter + DriveDelim + PathDelim; // ohne die Auslagerung in einen String kommt es zu einer AV in ntdll |
||
1309 | GetVolumeInformation(PChar(s), VolumeName, |
||
1310 | SizeOf(VolumeName), nil, Dummy2, Dummy3, FileSystem, SizeOf(FileSystem)); |
||
1311 | result := uppercase(copy(FileSystem, 0, 3)) = 'FAT'; |
||
1312 | end; |
||
1313 | |||
1314 | procedure TRbDrive.ListRecycleBins(list: TObjectList{TRbRecycleBin}; UserSID: string=''); |
||
1315 | |||
1316 | procedure _AddSIDFolders(dir: string; wholeFolder: boolean); |
||
1317 | var |
||
1318 | SR: TSearchRec; |
||
1319 | begin |
||
1320 | dir := IncludeTrailingPathDelimiter(dir); |
||
1321 | if FindFirst(dir+'S-*', faAnyFile, SR) = 0 then |
||
1322 | begin |
||
1323 | try |
||
1324 | repeat |
||
1325 | if (SR.Name = '.') or (SR.Name = '..') or not DirectoryExists(dir + SR.Name) then continue; |
||
1326 | |||
1327 | if wholeFolder then |
||
1328 | begin |
||
1329 | // Vista |
||
1330 | list.Add(TRbRecycleBin.Create(dir+SR.Name, SR.Name)); |
||
1331 | end |
||
1332 | else |
||
1333 | begin |
||
1334 | // Win95 .. WinXP |
||
1335 | if FileExists(IncludeTrailingPathDelimiter(dir+SR.Name) + 'INFO2') then |
||
1336 | list.Add(TRbRecycleBin.Create(IncludeTrailingPathDelimiter(dir+SR.Name) + 'INFO2', SR.Name)); |
||
1337 | if FileExists(IncludeTrailingPathDelimiter(dir+SR.Name) + 'INFO') then |
||
1338 | list.Add(TRbRecycleBin.Create(IncludeTrailingPathDelimiter(dir+SR.Name) + 'INFO', SR.Name)); |
||
1339 | end; |
||
1340 | until FindNext(SR) <> 0; |
||
1341 | finally |
||
1342 | FindClose(SR); |
||
1343 | end; |
||
1344 | end; |
||
1345 | end; |
||
1346 | |||
1347 | var |
||
1348 | dir: string; |
||
1349 | begin |
||
1350 | // Find recyclers from Windows Vista or higher |
||
1351 | |||
1352 | if IsFAT then |
||
1353 | begin |
||
1354 | dir := FDriveLetter + DriveDelim + PathDelim + '$recycle.bin' + PathDelim; |
||
1355 | if DirectoryExists(dir) then |
||
1356 | begin |
||
1357 | list.Add(TRbRecycleBin.Create(dir)); |
||
1358 | end; |
||
1359 | end |
||
1360 | else |
||
1361 | begin |
||
1362 | if UserSID <> '' then |
||
1363 | begin |
||
1364 | dir := FDriveLetter + DriveDelim + PathDelim + '$recycle.bin' + PathDelim + UserSID + PathDelim; |
||
1365 | if DirectoryExists(dir) then |
||
1366 | begin |
||
1367 | list.Add(TRbRecycleBin.Create(dir, UserSID)); |
||
1368 | end; |
||
1369 | end |
||
1370 | else |
||
1371 | begin |
||
1372 | _AddSIDFolders(FDriveLetter + DriveDelim + PathDelim + '$recycle.bin', true); |
||
1373 | end; |
||
1374 | end; |
||
1375 | |||
1376 | // Find recyclers from Windows before Vista |
||
1377 | |||
1378 | if IsFAT then |
||
1379 | begin |
||
1380 | dir := FDriveLetter + DriveDelim + PathDelim + 'Recycled' + PathDelim; |
||
1381 | |||
1382 | // Both "recycle bins" are possible if you have multiboot (but do overwrite themselfes if you empty them) |
||
1383 | if FileExists(dir + 'INFO2') then |
||
76 | daniel-mar | 1384 | list.Add(TRbRecycleBin.Create(dir + 'INFO2')); // Windows 95 with Internet Explorer 4 Extension or higher Windows 9x versions |
75 | daniel-mar | 1385 | if FileExists(dir + 'INFO') then |
1386 | list.Add(TRbRecycleBin.Create(dir + 'INFO')); // Windows 95 native |
||
1387 | end |
||
1388 | else |
||
1389 | begin |
||
1390 | if UserSID <> '' then |
||
1391 | begin |
||
1392 | dir := FDriveLetter + DriveDelim + PathDelim + 'Recycler' + PathDelim + UserSID + PathDelim; |
||
1393 | |||
1394 | if FileExists(dir + 'INFO2') then |
||
76 | daniel-mar | 1395 | list.Add(TRbRecycleBin.Create(dir + 'INFO2', UserSID)); // Windows 2000+ |
75 | daniel-mar | 1396 | if FileExists(dir + 'INFO') then |
1397 | list.Add(TRbRecycleBin.Create(dir + 'INFO', UserSID)); // Windows NT 4 |
||
1398 | end |
||
1399 | else |
||
1400 | begin |
||
1401 | _AddSIDFolders(FDriveLetter + DriveDelim + PathDelim + 'Recycler', false); |
||
1402 | end; |
||
1403 | end; |
||
1404 | end; |
||
1405 | |||
76 | daniel-mar | 1406 | { TRbInfoAItem } |
75 | daniel-mar | 1407 | |
76 | daniel-mar | 1408 | procedure TRbInfoAItem.ReadFromStream(stream: TStream); |
75 | daniel-mar | 1409 | var |
76 | daniel-mar | 1410 | r: TRbInfoRecordA; |
95 | daniel-mar | 1411 | i: Integer; |
75 | daniel-mar | 1412 | begin |
1413 | stream.ReadBuffer(r, SizeOf(r)); |
||
1414 | |||
100 | daniel-mar | 1415 | if r.sourceDrive = 26 then |
1416 | FSourceDrive := '@' // @ is the "Network home drive" of the Win95 time |
||
1417 | else |
||
1418 | FSourceDrive := Chr(Ord('A') + r.sourceDrive); |
||
75 | daniel-mar | 1419 | |
76 | daniel-mar | 1420 | // Win95 with IE4 and Win2000+: |
1421 | // Wenn ein Eintrag aus der INFO/INFO2 gelöscht wird, dann wird das erste Byte |
||
1422 | // von sourceAnsi auf Null gesetzt, damit die ganze INFO/INFO2 Datei nicht |
||
1423 | // ständig neu geschrieben werden muss (so wie es bei Win95 und WinNT4 der Fall war). |
||
1424 | // Wir lesen den Eintrag trotzdem, da unsere Software ja auch zu forensischen |
||
1425 | // Zwecken eingesetzt werden soll. |
||
75 | daniel-mar | 1426 | if r.sourceAnsi[0] = #0 then |
1427 | begin |
||
1428 | FRemovedEntry := true; |
||
102 | daniel-mar | 1429 | if (r.sourceDrive = 26) and (r.sourceAnsi[1] = '\') then |
1430 | r.sourceAnsi[0] := '\' |
||
1431 | else |
||
1432 | r.sourceAnsi[0] := AnsiChar(FSourceDrive); |
||
75 | daniel-mar | 1433 | end; |
1434 | |||
1435 | FSourceAnsi := r.sourceAnsi; |
||
95 | daniel-mar | 1436 | |
1437 | // Unicode does not exist in INFO(1) structure |
||
1438 | (* FSourceUnicode := AnsiCharArrayToWideString(r.sourceAnsi); *) |
||
1439 | SetLength(FSourceUnicode, Length(r.sourceAnsi)); |
||
1440 | for i := 0 to Length(r.sourceAnsi)-1 do |
||
1441 | FSourceUnicode[i+1] := WideChar(r.sourceAnsi[i]); |
||
1442 | |||
75 | daniel-mar | 1443 | FID := IntToStr(r.recordNumber); |
1444 | FDeletionTime := FileTimeToDateTime(r.deletionTime); |
||
1445 | FOriginalSize := r.originalSize; |
||
88 | daniel-mar | 1446 | |
1447 | // Remove #0 at the end. There are some bugs where #0 is added to ANSI/Unicode read paths?! (probably in the ReadVista stuff) |
||
1448 | // TODO: Instead of using this workaround, fix "SourceUnicode" and "SourceAnsi" in the first place! |
||
1449 | AnsiRemoveNulChars(FSourceAnsi); |
||
1450 | UnicodeRemoveNulChars(FSourceUnicode); |
||
75 | daniel-mar | 1451 | end; |
1452 | |||
76 | daniel-mar | 1453 | function TRbInfoAItem.DeleteFile: boolean; |
75 | daniel-mar | 1454 | var |
1455 | r: string; |
||
1456 | begin |
||
1457 | r := GetPhysicalFile; |
||
1458 | if DirectoryExists(r) then |
||
1459 | result := DeleteDirectory(r) // Usually, the old recycle bin does not allow folders. Just to be sure, we include the code. |
||
1460 | else |
||
1461 | result := SysUtils.DeleteFile(r); // TODO: geht das oder gibt es zugriffsverletzung? --> Win95: Funktioniert |
||
1462 | |||
1463 | // TODO: nun auch den eintrag aus der INFO-Datei rausschmeißen (Datei neu schreiben) |
||
1464 | end; |
||
1465 | |||
76 | daniel-mar | 1466 | function TRbInfoAItem.GetPhysicalFile: string; |
75 | daniel-mar | 1467 | begin |
1468 | if FRemovedEntry then |
||
1469 | begin |
||
1470 | result := ''; |
||
1471 | Exit; |
||
1472 | end; |
||
1473 | |||
1474 | // e.g. C:\...\DC0.doc |
||
1475 | result := IncludeTrailingPathDelimiter(ExtractFilePath(IndexFile)) + |
||
89 | daniel-mar | 1476 | 'D' + (* SourceDrive *) Source[1] + ID + ExtractFileExt(Source); |
75 | daniel-mar | 1477 | end; |
1478 | |||
76 | daniel-mar | 1479 | constructor TRbInfoAItem.Create(fs: TStream; AIndexFile: string); |
75 | daniel-mar | 1480 | begin |
1481 | inherited Create; |
||
1482 | ReadFromStream(fs); |
||
1483 | FIndexFile := AIndexFile; |
||
1484 | end; |
||
1485 | |||
76 | daniel-mar | 1486 | { TRbInfoWItem } |
75 | daniel-mar | 1487 | |
76 | daniel-mar | 1488 | procedure TRbInfoWItem.ReadFromStream(stream: TStream); |
75 | daniel-mar | 1489 | var |
76 | daniel-mar | 1490 | r: TRbInfoRecordW; |
75 | daniel-mar | 1491 | begin |
1492 | stream.ReadBuffer(r, SizeOf(r)); |
||
1493 | |||
76 | daniel-mar | 1494 | // Win95 with IE4 and Win2000+: |
1495 | // Wenn ein Eintrag aus der INFO/INFO2 gelöscht wird, dann wird das erste Byte |
||
1496 | // von sourceAnsi auf Null gesetzt, damit die ganze INFO/INFO2 Datei nicht |
||
1497 | // ständig neu geschrieben werden muss (so wie es bei Win95 und WinNT4 der Fall war). |
||
75 | daniel-mar | 1498 | // Wir lesen den Eintrag trotzdem, da unsere Software ja auch zu forensischen |
1499 | // Zwecken eingesetzt werden soll. |
||
1500 | if r.sourceAnsi[0] = #0 then |
||
1501 | begin |
||
1502 | FRemovedEntry := true; |
||
1503 | r.sourceAnsi[0] := AnsiChar(r.sourceUnicode[0]); |
||
102 | daniel-mar | 1504 | (* |
1505 | if (r.sourceDrive = 26) and (r.sourceAnsi[1] = '\') then |
||
1506 | r.sourceAnsi[0] := '\' |
||
1507 | else |
||
1508 | r.sourceAnsi[0] := AnsiChar(FSourceDrive); |
||
1509 | *) |
||
75 | daniel-mar | 1510 | end; |
1511 | |||
1512 | FSourceAnsi := r.sourceAnsi; |
||
1513 | FSourceUnicode := r.sourceUnicode; |
||
1514 | FID := IntToStr(r.recordNumber); |
||
100 | daniel-mar | 1515 | |
1516 | if r.sourceDrive = 26 then |
||
1517 | FSourceDrive := '@' // @ is the "Network home drive" of the Win95 time |
||
1518 | else |
||
1519 | FSourceDrive := Chr(Ord('A') + r.sourceDrive); |
||
1520 | |||
75 | daniel-mar | 1521 | FDeletionTime := FileTimeToDateTime(r.deletionTime); |
1522 | FOriginalSize := r.originalSize; |
||
88 | daniel-mar | 1523 | |
1524 | // Remove #0 at the end. There are some bugs where #0 is added to ANSI/Unicode read paths?! (probably in the ReadVista stuff) |
||
1525 | // TODO: Instead of using this workaround, fix "SourceUnicode" and "SourceAnsi" in the first place! |
||
1526 | AnsiRemoveNulChars(FSourceAnsi); |
||
1527 | UnicodeRemoveNulChars(FSourceUnicode); |
||
75 | daniel-mar | 1528 | end; |
1529 | |||
76 | daniel-mar | 1530 | function TRbInfoWItem.DeleteFile: boolean; |
75 | daniel-mar | 1531 | var |
1532 | r: string; |
||
1533 | begin |
||
1534 | r := GetPhysicalFile; |
||
1535 | if DirectoryExists(r) then |
||
1536 | result := DeleteDirectory(r) |
||
1537 | else |
||
1538 | result := SysUtils.DeleteFile(r); // TODO: geht das oder gibt es zugriffsverletzung? |
||
1539 | |||
1540 | // TODO: nun auch den eintrag aus der INFO-Datei rausschmeißen (Erstes Byte auf 0 setzen) |
||
1541 | end; |
||
1542 | |||
76 | daniel-mar | 1543 | function TRbInfoWItem.GetPhysicalFile: string; |
75 | daniel-mar | 1544 | begin |
1545 | if FRemovedEntry then |
||
1546 | begin |
||
1547 | result := ''; |
||
1548 | Exit; |
||
1549 | end; |
||
1550 | |||
76 | daniel-mar | 1551 | (* |
1552 | This is actually a bit tricky... |
||
1553 | Win95 will choose the first letter of the AnsiSource name. |
||
1554 | WinNT will choose the first letter of the UnicodeSource name. |
||
1555 | WinXP will choose the driveNumber member. |
||
1556 | |||
1557 | Windows XP is kinda buggy when it comes to changing a drive letter. |
||
1558 | For example, the drive E: was changed to K: |
||
1559 | The drive letter is 04 (E), the Source name begins with E:\ and the physical file is De0.txt . |
||
1560 | After the recycle bin is opened the first time: |
||
1561 | - The recycle bin will show the file origin as K:\ and not as E:\ |
||
1562 | - The file was renamed from De0.txt to Dk0.txt |
||
1563 | - The file can be recovered at this time |
||
1564 | When the recycle bin is closed, the INFO2 file will not be corrected (which is a bug). |
||
1565 | So, if you open the recycle bin again, the record will be marked |
||
1566 | as deleted in the INFO file (the first byte will be set to 0), |
||
1567 | because Windows searches for De0.txt and doesn't find it. |
||
1568 | |||
1569 | (This comment also applies to TRbInfoAItem.GetPhysicalFile) |
||
1570 | *) |
||
1571 | |||
75 | daniel-mar | 1572 | // e.g. C:\...\DC0.doc |
1573 | result := IncludeTrailingPathDelimiter(ExtractFilePath(IndexFile)) + |
||
76 | daniel-mar | 1574 | 'D' + SourceDrive (* SourceUnicode[1] *) + ID + ExtractFileExt(SourceUnicode); |
75 | daniel-mar | 1575 | end; |
1576 | |||
76 | daniel-mar | 1577 | constructor TRbInfoWItem.Create(fs: TStream; AIndexFile: string); |
75 | daniel-mar | 1578 | begin |
1579 | inherited Create; |
||
1580 | ReadFromStream(fs); |
||
1581 | FIndexFile := AIndexFile; |
||
1582 | end; |
||
1583 | |||
1584 | { TRbVistaItem } |
||
1585 | |||
1586 | procedure TRbVistaItem.ReadFromStream(stream: TStream); |
||
1587 | var |
||
82 | daniel-mar | 1588 | r1: TRbVistaRecord1; |
1589 | r2: TRbVistaRecord2Head; |
||
96 | daniel-mar | 1590 | r2SourceUnicode: array of WideChar; |
106 | daniel-mar | 1591 | ver: int64; |
95 | daniel-mar | 1592 | i: Integer; |
96 | daniel-mar | 1593 | resourcestring |
106 | daniel-mar | 1594 | LNG_VISTA_WRONG_FORMAT = 'Invalid Vista index format version %d at file %s'; |
75 | daniel-mar | 1595 | begin |
106 | daniel-mar | 1596 | stream.ReadBuffer(ver, SizeOf(ver)); |
75 | daniel-mar | 1597 | |
106 | daniel-mar | 1598 | if ver = 1 then |
82 | daniel-mar | 1599 | begin |
1600 | stream.Seek(0, soBeginning); |
||
1601 | stream.ReadBuffer(r1, SizeOf(r1)); |
||
95 | daniel-mar | 1602 | |
1603 | (* FSourceAnsi := AnsiString(WideCharArrayToWideString(r1.sourceUnicode)); *) |
||
1604 | SetLength(FSourceAnsi, Length(r1.sourceUnicode)); |
||
1605 | for i := 0 to Length(r1.sourceUnicode)-1 do |
||
1606 | FSourceAnsi[i+1] := AnsiChar(r1.sourceUnicode[i]); // Note: Invalid chars are automatically converted into '?' |
||
1607 | |||
1608 | (* FSourceUnicode := WideCharArrayToWideString(r1.sourceUnicode); *) |
||
1609 | SetLength(FSourceUnicode, Length(r1.sourceUnicode)); |
||
1610 | for i := 0 to Length(r1.sourceUnicode)-1 do |
||
1611 | FSourceUnicode[i+1] := r1.sourceUnicode[i]; |
||
1612 | |||
82 | daniel-mar | 1613 | FID := ''; // will be added manually (at the constructor) |
97 | daniel-mar | 1614 | FSourceDrive := Char(r1.sourceUnicode[1]); |
82 | daniel-mar | 1615 | FDeletionTime := FileTimeToDateTime(r1.deletionTime); |
1616 | FOriginalSize := r1.originalSize; |
||
1617 | end |
||
106 | daniel-mar | 1618 | else if ver = 2 then |
82 | daniel-mar | 1619 | begin |
1620 | stream.Seek(0, soBeginning); |
||
1621 | stream.ReadBuffer(r2, SizeOf(r2)); |
||
1622 | |||
90 | daniel-mar | 1623 | SetLength(r2SourceUnicode, SizeOf(WideChar)*(r2.SourceCountChars-1)); |
1624 | stream.Read(r2SourceUnicode[0], SizeOf(WideChar)*(r2.sourceCountChars-1)); |
||
82 | daniel-mar | 1625 | |
96 | daniel-mar | 1626 | // Invalid chars are automatically converted into '?' |
1627 | (* FSourceAnsi := AnsiString(WideCharArrayToWideString(r2sourceUnicode)); *) |
||
1628 | SetLength(FSourceAnsi, Length(r2sourceUnicode)); |
||
1629 | for i := 0 to Length(r2sourceUnicode)-1 do |
||
1630 | FSourceAnsi[i+1] := AnsiChar(r2sourceUnicode[i]); |
||
1631 | |||
1632 | (* FSourceUnicode := WideCharArrayToWideString(r2sourceUnicode); *) |
||
1633 | SetLength(FSourceUnicode, Length(r2sourceUnicode)); |
||
1634 | for i := 0 to Length(r2sourceUnicode)-1 do |
||
1635 | FSourceUnicode[i+1] := WideChar(r2sourceUnicode[i]); |
||
1636 | |||
82 | daniel-mar | 1637 | FID := ''; // will be added manually (at the constructor) |
97 | daniel-mar | 1638 | FSourceDrive := Char(r2sourceUnicode[1]); |
82 | daniel-mar | 1639 | FDeletionTime := FileTimeToDateTime(r2.deletionTime); |
1640 | FOriginalSize := r2.originalSize; |
||
1641 | end |
||
1642 | else |
||
1643 | begin |
||
106 | daniel-mar | 1644 | raise Exception.CreateFmt(LNG_VISTA_WRONG_FORMAT, [ver, FID]); |
82 | daniel-mar | 1645 | end; |
88 | daniel-mar | 1646 | |
1647 | // Remove #0 at the end. There are some bugs where #0 is added to ANSI/Unicode read paths?! (probably in the ReadVista stuff) |
||
1648 | // TODO: Instead of using this workaround, fix "SourceUnicode" and "SourceAnsi" in the first place! |
||
1649 | AnsiRemoveNulChars(FSourceAnsi); |
||
1650 | UnicodeRemoveNulChars(FSourceUnicode); |
||
75 | daniel-mar | 1651 | end; |
1652 | |||
1653 | function TRbVistaItem.DeleteFile: boolean; |
||
1654 | var |
||
1655 | r: string; |
||
1656 | begin |
||
1657 | r := GetPhysicalFile; |
||
1658 | if DirectoryExists(r) then |
||
1659 | result := DeleteDirectory(r) |
||
1660 | else |
||
1661 | result := SysUtils.DeleteFile(r); |
||
1662 | |||
1663 | SysUtils.DeleteFile(FIndexFile); |
||
1664 | end; |
||
1665 | |||
1666 | function TRbVistaItem.GetPhysicalFile: string; |
||
1667 | begin |
||
1668 | result := FIndexFile; |
||
99 | daniel-mar | 1669 | if Pos('$I', Result) = 0 then |
1670 | result := '' |
||
1671 | else |
||
1672 | result := StringReplace(Result, '$I', '$R', [rfIgnoreCase]); |
||
75 | daniel-mar | 1673 | end; |
1674 | |||
1675 | constructor TRbVistaItem.Create(fs: TStream; AIndexFile, AID: string); |
||
1676 | begin |
||
1677 | inherited Create; |
||
1678 | FIndexFile := AIndexFile; |
||
1679 | FID := AID; |
||
106 | daniel-mar | 1680 | ReadFromStream(fs); |
75 | daniel-mar | 1681 | end; |
1682 | |||
1683 | { TRecycleBinManager } |
||
1684 | |||
1685 | class function TRecycleBinManager.EmptyOwnRecyclers(flags: cardinal): boolean; |
||
1686 | var |
||
1687 | PSHEmptyRecycleBin: TSHEmptyRecycleBin; |
||
1688 | LibHandle: THandle; |
||
1689 | begin |
||
1690 | // Source: http://www.dsdt.info/tipps/?id=176 |
||
1691 | result := true; |
||
1692 | LibHandle := LoadLibrary(shell32); |
||
1693 | try |
||
1694 | if LibHandle <> 0 then |
||
1695 | begin |
||
93 | daniel-mar | 1696 | @PSHEmptyRecycleBin := GetProcAddress(LibHandle, C_SHEmptyRecycleBin); |
75 | daniel-mar | 1697 | if @PSHEmptyRecycleBin <> nil then |
1698 | begin |
||
1699 | PSHEmptyRecycleBin(hInstance, nil, flags); |
||
1700 | end |
||
1701 | else |
||
1702 | result := false; |
||
1703 | end |
||
1704 | else |
||
1705 | result := false; |
||
1706 | finally |
||
1707 | @PSHEmptyRecycleBin := nil; |
||
1708 | if LibHandle <> 0 then FreeLibrary(LibHandle); |
||
1709 | end; |
||
1710 | end; |
||
1711 | |||
1712 | class function TRecycleBinManager.EmptyOwnRecyclers(sound, progress, confirmation: boolean): boolean; |
||
1713 | const |
||
1714 | SHERB_NOCONFIRMATION = $00000001; |
||
1715 | SHERB_NOPROGRESSUI = $00000002; |
||
1716 | SHERB_NOSOUND = $00000004; |
||
1717 | var |
||
1718 | flags: cardinal; |
||
1719 | begin |
||
1720 | flags := 0; |
||
1721 | |||
1722 | if not progress then |
||
1723 | flags := flags or SHERB_NOPROGRESSUI; |
||
1724 | if not confirmation then |
||
1725 | flags := flags or SHERB_NOCONFIRMATION; |
||
1726 | if not sound then |
||
1727 | flags := flags or SHERB_NOSOUND; |
||
1728 | |||
1729 | result := EmptyOwnRecyclers(flags); |
||
1730 | end; |
||
1731 | |||
1732 | class function TRecycleBinManager.GetGlobalMaxPercentUsage: integer; |
||
1733 | var |
||
1734 | reg: TRegistry; |
||
1735 | purgeInfo: TRbWin95PurgeInfo; |
||
1736 | const |
||
1737 | RES_DEFAULT = 10; // Windows 95 - Standardwert |
||
1738 | begin |
||
78 | daniel-mar | 1739 | if Win32MajorVersion >= 6 then |
1740 | begin |
||
1741 | // Only available till Windows XP |
||
1742 | result := -1; |
||
1743 | exit; |
||
1744 | end; |
||
1745 | |||
75 | daniel-mar | 1746 | result := RES_DEFAULT; |
1747 | |||
1748 | reg := TRegistry.Create; |
||
1749 | try |
||
1750 | reg.RootKey := HKEY_LOCAL_MACHINE; |
||
1751 | |||
1752 | // Im Auslieferungszustand von Windows 95 ist dieser Schlüssel nicht vorhanden. |
||
1753 | // Er wird bei der ersten Änderung der Papierkorb-Einstellungen erstellt. |
||
1754 | if reg.OpenKeyReadOnly('SOFTWARE\Microsoft\Windows\CurrentVersion\explorer\BitBucket') then |
||
1755 | begin |
||
1756 | if reg.ValueExists('Percent') then |
||
1757 | begin |
||
1758 | // Windows 2000 - Informationen liegen aufgeschlüsselt in der Registry |
||
1759 | |||
1760 | result := reg.ReadInteger('Percent'); |
||
1761 | end |
||
1762 | else if reg.ValueExists('PurgeInfo') then |
||
1763 | begin |
||
1764 | // Windows 95 - Kodierte Informationen liegen in PurgeInfo |
||
1765 | |||
1766 | reg.ReadBinaryData('PurgeInfo', purgeInfo, SizeOf(purgeInfo)); |
||
1767 | result := purgeInfo.percentGlobal; |
||
1768 | end; |
||
1769 | |||
1770 | reg.CloseKey; |
||
1771 | end; |
||
1772 | finally |
||
1773 | reg.Free; |
||
1774 | end; |
||
1775 | end; |
||
1776 | |||
1777 | class function TRecycleBinManager.GetGlobalNukeOnDelete: boolean; |
||
1778 | var |
||
1779 | reg: TRegistry; |
||
1780 | purgeInfo: TRbWin95PurgeInfo; |
||
1781 | const |
||
1782 | RES_DEFAULT = false; // Windows 95 - Standardwert |
||
1783 | begin |
||
78 | daniel-mar | 1784 | if Win32MajorVersion >= 6 then |
1785 | begin |
||
1786 | // Only available till Windows XP |
||
1787 | result := false; |
||
1788 | exit; |
||
1789 | end; |
||
1790 | |||
75 | daniel-mar | 1791 | result := RES_DEFAULT; |
1792 | |||
1793 | reg := TRegistry.Create; |
||
1794 | try |
||
1795 | reg.RootKey := HKEY_LOCAL_MACHINE; |
||
1796 | |||
1797 | // Im Auslieferungszustand von Windows 95 ist dieser Schlüssel nicht vorhanden. |
||
1798 | // Er wird bei der ersten Änderung der Papierkorb-Einstellungen erstellt. |
||
1799 | if reg.OpenKeyReadOnly('SOFTWARE\Microsoft\Windows\CurrentVersion\explorer\BitBucket') then |
||
1800 | begin |
||
1801 | if reg.ValueExists('NukeOnDelete') then |
||
1802 | begin |
||
1803 | // Windows 2000 - Informationen liegen aufgeschlüsselt in der Registry |
||
1804 | |||
1805 | result := reg.ReadBool('NukeOnDelete'); |
||
1806 | end |
||
1807 | else if reg.ValueExists('PurgeInfo') then |
||
1808 | begin |
||
1809 | // Windows 95 - Kodierte Informationen liegen in PurgeInfo |
||
1810 | |||
1811 | reg.ReadBinaryData('PurgeInfo', purgeInfo, SizeOf(purgeInfo)); |
||
1812 | result := (purgeInfo.NukeOnDeleteBits and $8000000) = $8000000; // bit 27 |
||
1813 | end; |
||
1814 | |||
1815 | reg.CloseKey; |
||
1816 | end; |
||
1817 | finally |
||
1818 | reg.Free; |
||
1819 | end; |
||
1820 | end; |
||
1821 | |||
76 | daniel-mar | 1822 | (* TODO: |
1823 | There are more registry values (found in WinXP): |
||
1824 | |||
1825 | BitBucket\<driveletter> |
||
1826 | VolumeSerialNumber |
||
1827 | IsUnicode |
||
1828 | |||
1829 | *) |
||
1830 | |||
75 | daniel-mar | 1831 | class function TRecycleBinManager.UsesGlobalSettings: boolean; |
1832 | var |
||
1833 | reg: TRegistry; |
||
1834 | purgeInfo: TRbWin95PurgeInfo; |
||
1835 | const |
||
1836 | RES_DEFAULT = true; // Windows 95 - Standardwert |
||
1837 | begin |
||
78 | daniel-mar | 1838 | if Win32MajorVersion >= 6 then |
1839 | begin |
||
1840 | // Only available till Windows XP |
||
1841 | result := false; |
||
1842 | exit; |
||
1843 | end; |
||
1844 | |||
75 | daniel-mar | 1845 | result := RES_DEFAULT; |
1846 | |||
1847 | reg := TRegistry.Create; |
||
1848 | try |
||
1849 | reg.RootKey := HKEY_LOCAL_MACHINE; |
||
1850 | |||
1851 | // Im Auslieferungszustand von Windows 95 ist dieser Schlüssel nicht vorhanden. |
||
1852 | // Er wird bei der ersten Änderung der Papierkorb-Einstellungen erstellt. |
||
1853 | if reg.OpenKeyReadOnly('SOFTWARE\Microsoft\Windows\CurrentVersion\explorer\BitBucket') then |
||
1854 | begin |
||
1855 | if reg.ValueExists('UseGlobalSettings') then |
||
1856 | begin |
||
1857 | // Windows 2000 - Informationen liegen aufgeschlüsselt in der Registry |
||
1858 | |||
1859 | result := reg.ReadBool('UseGlobalSettings'); |
||
1860 | end |
||
1861 | else if reg.ValueExists('PurgeInfo') then |
||
1862 | begin |
||
1863 | // Windows 95 - Kodierte Informationen liegen in PurgeInfo |
||
1864 | |||
1865 | reg.ReadBinaryData('PurgeInfo', purgeInfo, SizeOf(purgeInfo)); |
||
1866 | result := purgeInfo.bGlobalSettings; |
||
1867 | end; |
||
1868 | |||
1869 | reg.CloseKey; |
||
1870 | end; |
||
1871 | finally |
||
1872 | reg.Free; |
||
1873 | end; |
||
1874 | end; |
||
1875 | |||
1876 | class procedure TRecycleBinManager.ListDrives(list: TObjectList{TRbDrive}); |
||
1877 | var |
||
89 | daniel-mar | 1878 | drive: AnsiChar; |
75 | daniel-mar | 1879 | begin |
1880 | for drive := 'A' to 'Z' do |
||
1881 | if RecycleBinPossible(drive) then |
||
1882 | list.Add(TRbDrive.Create(drive)); |
||
1883 | end; |
||
1884 | |||
1885 | class function TRecycleBinManager.OwnRecyclersEmpty: boolean; |
||
1886 | var |
||
1887 | drives: TObjectList; |
||
1888 | i: integer; |
||
1889 | begin |
||
1890 | result := true; |
||
1891 | |||
1892 | drives := TObjectList.Create(true); |
||
1893 | try |
||
1894 | ListDrives(drives); |
||
1895 | for i := 0 to drives.Count - 1 do |
||
1896 | begin |
||
1897 | result := result and TRbDrive(drives.Items[i]).IsEmpty; |
||
1898 | if not result then break; |
||
1899 | end; |
||
1900 | finally |
||
1901 | drives.Free; |
||
1902 | end; |
||
1903 | end; |
||
1904 | |||
1905 | class function TRecycleBinManager.OwnRecyclersNumItems: int64; |
||
1906 | var |
||
1907 | drives: TObjectList; |
||
1908 | i: integer; |
||
1909 | begin |
||
1910 | result := 0; |
||
1911 | |||
1912 | drives := TObjectList.Create(true); |
||
1913 | try |
||
1914 | ListDrives(drives); |
||
1915 | for i := 0 to drives.Count - 1 do |
||
1916 | begin |
||
1917 | result := result + TRbDrive(drives.Items[i]).GetNumItems; |
||
1918 | end; |
||
1919 | finally |
||
1920 | drives.Free; |
||
1921 | end; |
||
1922 | end; |
||
1923 | |||
1924 | class function TRecycleBinManager.OwnRecyclersSize: int64; |
||
1925 | var |
||
1926 | drives: TObjectList; |
||
1927 | i: integer; |
||
1928 | begin |
||
1929 | result := 0; |
||
1930 | |||
1931 | drives := TObjectList.Create(true); |
||
1932 | try |
||
1933 | ListDrives(drives); |
||
1934 | for i := 0 to drives.Count - 1 do |
||
1935 | begin |
||
1936 | result := result + TRbDrive(drives.Items[i]).GetSize; |
||
1937 | end; |
||
1938 | finally |
||
1939 | drives.Free; |
||
1940 | end; |
||
1941 | end; |
||
1942 | |||
89 | daniel-mar | 1943 | class function TRecycleBinManager.RecycleBinPossible(Drive: AnsiChar): boolean; |
75 | daniel-mar | 1944 | var |
1945 | typ: Integer; |
||
1946 | begin |
||
1947 | // Does the drive exist? |
||
1948 | // see http://www.delphipraxis.net/post2933.html |
||
1949 | result := GetLogicalDrives and (1 shl DriveLetterToDriveNumber(Drive)) <> 0; |
||
1950 | if not result then exit; |
||
1951 | |||
1952 | // Is it a fixed drive? (Only they can have recycle bins) |
||
1953 | // TODO: is that correct, or can also have other drive types have recyclers? |
||
1954 | typ := GetDriveType(PChar(Drive + ':\')); |
||
1955 | result := typ = DRIVE_FIXED; |
||
1956 | end; |
||
1957 | |||
1958 | class function TRecycleBinManager.RecyclerGetCurrentIconString: string; |
||
1959 | begin |
||
1960 | if OwnRecyclersEmpty then |
||
1961 | result := RecyclerGetEmptyIconString |
||
1962 | else |
||
1963 | result := RecyclerGetFullIconString; |
||
1964 | end; |
||
1965 | |||
1966 | class function TRecycleBinManager.RecyclerGetDefaultIconString: string; |
||
1967 | var |
||
1968 | reg: TRegistry; |
||
1969 | begin |
||
1970 | // Please note: The "default" icon is not always the icon of the |
||
1971 | // current recycle bin in its current state (full, empty) |
||
1972 | // At Windows 95b, the registry value actually did change every time the |
||
1973 | // recycle bin state did change, but at Windows 2000 I could not see any |
||
1974 | // update, even after reboot. So, the registry value is possible fixed as |
||
1975 | // default = empty on newer OS versions. |
||
1976 | |||
1977 | reg := TRegistry.Create; |
||
1978 | try |
||
1979 | reg.RootKey := HKEY_CLASSES_ROOT; |
||
1980 | if reg.OpenKeyReadOnly('CLSID\'+GUIDToString(RECYCLER_CLSID)+'\DefaultIcon') then |
||
1981 | begin |
||
1982 | result := reg.ReadString(''); |
||
1983 | reg.CloseKey; |
||
1984 | end; |
||
1985 | finally |
||
1986 | reg.Free; |
||
1987 | end; |
||
1988 | end; |
||
1989 | |||
1990 | class function TRecycleBinManager.RecyclerGetEmptyIconString: string; |
||
1991 | var |
||
1992 | reg: TRegistry; |
||
1993 | begin |
||
1994 | reg := TRegistry.Create; |
||
1995 | try |
||
1996 | reg.RootKey := HKEY_CLASSES_ROOT; |
||
1997 | if reg.OpenKeyReadOnly('CLSID\'+GUIDToString(RECYCLER_CLSID)+'\DefaultIcon') then |
||
1998 | begin |
||
1999 | result := reg.ReadString('Empty'); |
||
2000 | reg.CloseKey; |
||
2001 | end; |
||
2002 | finally |
||
2003 | reg.Free; |
||
2004 | end; |
||
2005 | end; |
||
2006 | |||
2007 | class function TRecycleBinManager.RecyclerGetFullIconString: string; |
||
2008 | var |
||
2009 | reg: TRegistry; |
||
2010 | begin |
||
2011 | reg := TRegistry.Create; |
||
2012 | try |
||
2013 | reg.RootKey := HKEY_CLASSES_ROOT; |
||
2014 | if reg.OpenKeyReadOnly('CLSID\'+GUIDToString(RECYCLER_CLSID)+'\DefaultIcon') then |
||
2015 | begin |
||
2016 | result := reg.ReadString('Full'); |
||
2017 | reg.CloseKey; |
||
2018 | end; |
||
2019 | finally |
||
2020 | reg.Free; |
||
2021 | end; |
||
2022 | end; |
||
2023 | |||
2024 | class function TRecycleBinManager.RecyclerGetInfoTip: string; |
||
2025 | var |
||
2026 | reg: TRegistry; |
||
2027 | begin |
||
2028 | // Not available in some older versions of Windows |
||
2029 | |||
2030 | reg := TRegistry.Create; |
||
2031 | try |
||
2032 | reg.RootKey := HKEY_CLASSES_ROOT; |
||
2033 | if reg.OpenKeyReadOnly('CLSID\'+GUIDToString(RECYCLER_CLSID)) then |
||
2034 | begin |
||
2035 | result := reg.ReadString('InfoTip'); |
||
2036 | result := DecodeReferenceString(result); |
||
2037 | |||
2038 | reg.CloseKey; |
||
2039 | end; |
||
2040 | finally |
||
2041 | reg.Free; |
||
2042 | end; |
||
2043 | end; |
||
2044 | |||
2045 | class function TRecycleBinManager.RecyclerGetIntroText: string; |
||
2046 | var |
||
2047 | reg: TRegistry; |
||
2048 | begin |
||
2049 | // Not available in some older versions of Windows |
||
2050 | |||
2051 | reg := TRegistry.Create; |
||
2052 | try |
||
2053 | reg.RootKey := HKEY_CLASSES_ROOT; |
||
2054 | if reg.OpenKeyReadOnly('CLSID\'+GUIDToString(RECYCLER_CLSID)) then |
||
2055 | begin |
||
2056 | result := reg.ReadString('IntroText'); |
||
2057 | result := DecodeReferenceString(result); |
||
2058 | |||
2059 | reg.CloseKey; |
||
2060 | end; |
||
2061 | finally |
||
2062 | reg.Free; |
||
2063 | end; |
||
2064 | end; |
||
2065 | |||
2066 | class function TRecycleBinManager.RecyclerGetName: string; |
||
2067 | var |
||
2068 | reg: TRegistry; |
||
2069 | begin |
||
2070 | // Windows 95b: |
||
2071 | // Change of CLSID\{645FF040-5081-101B-9F08-00AA002F954E} will change the desktop name of the recycle bin. |
||
2072 | |||
2073 | // Windows 2000: If LocalizedString is available, the 3rd argument will be parsed |
||
2074 | // (if the third argument will removed, it will be read out from the DLL resource string automatically) |
||
2075 | |||
2076 | reg := TRegistry.Create; |
||
2077 | try |
||
2078 | reg.RootKey := HKEY_CLASSES_ROOT; |
||
2079 | if reg.OpenKeyReadOnly('CLSID\'+GUIDToString(RECYCLER_CLSID)) then |
||
2080 | begin |
||
2081 | if reg.ValueExists('LocalizedString') then |
||
2082 | begin |
||
2083 | result := reg.ReadString('LocalizedString'); |
||
2084 | result := DecodeReferenceString(result); |
||
2085 | end |
||
2086 | else |
||
2087 | begin |
||
2088 | result := reg.ReadString(''); |
||
2089 | end; |
||
2090 | |||
2091 | reg.CloseKey; |
||
2092 | end; |
||
2093 | finally |
||
2094 | reg.Free; |
||
2095 | end; |
||
2096 | end; |
||
2097 | |||
2098 | class function TRecycleBinManager.RecyclerEmptyEventGetName: string; |
||
2099 | var |
||
2100 | reg: TRegistry; |
||
2101 | begin |
||
2102 | reg := TRegistry.Create; |
||
2103 | try |
||
2104 | reg.RootKey := HKEY_CURRENT_USER; |
||
2105 | if reg.OpenKeyReadOnly('AppEvents\EventLabels\EmptyRecycleBin') then |
||
2106 | begin |
||
2107 | result := reg.ReadString(''); |
||
2108 | reg.CloseKey; |
||
2109 | end; |
||
2110 | finally |
||
2111 | reg.Free; |
||
2112 | end; |
||
2113 | end; |
||
2114 | |||
2115 | class function TRecycleBinManager.RecyclerEmptyEventGetCurrentSound: string; |
||
2116 | begin |
||
2117 | result := RecyclerEmptyEventGetSound('.Current'); |
||
2118 | end; |
||
2119 | |||
2120 | class function TRecycleBinManager.RecyclerEmptyEventGetDefaultSound: string; |
||
2121 | begin |
||
2122 | result := RecyclerEmptyEventGetSound('.Default'); |
||
2123 | end; |
||
2124 | |||
2125 | class procedure TRecycleBinManager.RecyclerEmptyEventGetSoundCategories(AStringList: TStringList); |
||
2126 | var |
||
2127 | reg: TRegistry; |
||
2128 | begin |
||
2129 | reg := TRegistry.Create; |
||
2130 | try |
||
2131 | reg.RootKey := HKEY_CURRENT_USER; |
||
2132 | if reg.OpenKeyReadOnly('AppEvents\Schemes\Apps\Explorer\EmptyRecycleBin') then |
||
2133 | begin |
||
2134 | reg.GetKeyNames(AStringList); |
||
2135 | reg.CloseKey; |
||
2136 | end; |
||
2137 | finally |
||
2138 | reg.Free; |
||
2139 | end; |
||
2140 | end; |
||
2141 | |||
2142 | class function TRecycleBinManager.RecyclerEmptyEventGetSound(ACategory: string): string; |
||
2143 | var |
||
2144 | reg: TRegistry; |
||
2145 | resourcestring |
||
2146 | LNG_SND_EVENT_CAT_ERROR = 'The category "%s" is not available for the notification event "%s".'; |
||
2147 | begin |
||
2148 | // Outputs an filename or empty string for no sound defined. |
||
2149 | |||
2150 | reg := TRegistry.Create; |
||
2151 | try |
||
2152 | reg.RootKey := HKEY_CURRENT_USER; |
||
2153 | if reg.OpenKeyReadOnly('AppEvents\Schemes\Apps\Explorer\EmptyRecycleBin') then |
||
2154 | begin |
||
2155 | if reg.OpenKeyReadOnly(ACategory) then |
||
2156 | begin |
||
2157 | result := reg.ReadString(''); |
||
2158 | reg.CloseKey; |
||
2159 | end |
||
2160 | else |
||
2161 | raise EEventCategoryNotDefined.CreateFmt(LNG_SND_EVENT_CAT_ERROR, [ACategory, 'EmptyRecycleBin']); |
||
2162 | reg.CloseKey; |
||
2163 | end; |
||
2164 | finally |
||
2165 | reg.Free; |
||
2166 | end; |
||
2167 | end; |
||
2168 | |||
2169 | class function TRecycleBinManager.RecyclerQueryFunctionAvailable: boolean; |
||
2170 | var |
||
2171 | RBHandle: THandle; |
||
2172 | SHQueryRecycleBin: TSHQueryRecycleBin; |
||
2173 | begin |
||
2174 | // Windows 95 without Internet Explorer 4 has no SHQueryRecycleBinA. |
||
2175 | RBHandle := LoadLibrary(shell32); |
||
2176 | try |
||
2177 | if RBHandle <> 0 then |
||
2178 | begin |
||
2179 | SHQueryRecycleBin := GetProcAddress(RBHandle, C_SHQueryRecycleBin); |
||
2180 | if not Assigned(@SHQueryRecycleBin) then |
||
2181 | begin |
||
2182 | FreeLibrary(RBHandle); |
||
2183 | RBHandle := 0; |
||
2184 | end; |
||
2185 | end; |
||
2186 | |||
2187 | result := RBHandle <> 0; |
||
2188 | finally |
||
2189 | if RBHandle <> 0 then FreeLibrary(RBHandle); |
||
2190 | end; |
||
2191 | end; |
||
2192 | |||
2193 | class function TRecycleBinManager.RecyclerAddFileOrFolder(FileOrFolder: string; confirmation: boolean=false): boolean; |
||
2194 | var |
||
2195 | Operation: TSHFileOpStruct; |
||
2196 | begin |
||
2197 | // Template: http://www.dsdt.info/tipps/?id=116 |
||
2198 | with Operation do |
||
2199 | begin |
||
2200 | Wnd := hInstance; // OK? |
||
2201 | wFunc := FO_DELETE; |
||
2202 | pFrom := PChar(FileOrFolder + #0); |
||
2203 | pTo := nil; |
||
2204 | fFlags := FOF_ALLOWUNDO; |
||
2205 | if not confirmation then fFlags := fFlags or FOF_NOCONFIRMATION; |
||
2206 | end; |
||
2207 | Result := SHFileOperation(Operation) = 0; |
||
2208 | end; |
||
2209 | |||
2210 | class function TRecycleBinManager.RecyclerGroupPolicyNoRecycleFiles: GPOLICYBOOL; |
||
2211 | var |
||
2212 | reg: TRegistry; |
||
2213 | begin |
||
2214 | result := gpUndefined; |
||
2215 | |||
2216 | reg := TRegistry.Create; |
||
2217 | try |
||
2218 | // If a value is set in HKEY_LOCAL_MACHINE, it will be prefered, |
||
2219 | // even if gpedit.msc shows "Not configured"! |
||
2220 | {$IFDEF GroupPolicyAcceptHKLMTrick} |
||
2221 | reg.RootKey := HKEY_LOCAL_MACHINE; |
||
2222 | if reg.OpenKeyReadOnly('Software\Microsoft\Windows\CurrentVersion\Policies\Explorer') then |
||
2223 | begin |
||
2224 | if reg.ValueExists('NoRecycleFiles') then |
||
2225 | begin |
||
2226 | if reg.ReadBool('NoRecycleFiles') then |
||
2227 | result := gpEnabled |
||
2228 | else |
||
2229 | result := gpDisabled; |
||
2230 | Exit; |
||
2231 | end; |
||
2232 | reg.CloseKey; |
||
2233 | end; |
||
2234 | {$ENDIF} |
||
2235 | |||
2236 | reg.RootKey := HKEY_CURRENT_USER; |
||
2237 | if reg.OpenKeyReadOnly('Software\Microsoft\Windows\CurrentVersion\Policies\Explorer') then |
||
2238 | begin |
||
2239 | if reg.ValueExists('NoRecycleFiles') then |
||
2240 | begin |
||
2241 | if reg.ReadBool('NoRecycleFiles') then |
||
2242 | result := gpEnabled |
||
2243 | else |
||
2244 | result := gpDisabled; |
||
2245 | end; |
||
2246 | reg.CloseKey; |
||
2247 | end; |
||
2248 | finally |
||
2249 | reg.Free; |
||
2250 | end; |
||
2251 | end; |
||
2252 | |||
2253 | class function TRecycleBinManager.RecyclerGroupPolicyConfirmFileDelete: GPOLICYBOOL; |
||
2254 | var |
||
2255 | reg: TRegistry; |
||
2256 | begin |
||
2257 | result := gpUndefined; |
||
2258 | reg := TRegistry.Create; |
||
2259 | try |
||
2260 | // If a value is set in HKEY_LOCAL_MACHINE, it will be prefered, |
||
2261 | // even if gpedit.msc shows "Not configured"! |
||
2262 | {$IFDEF GroupPolicyAcceptHKLMTrick} |
||
2263 | reg.RootKey := HKEY_LOCAL_MACHINE; |
||
2264 | if reg.OpenKeyReadOnly('Software\Microsoft\Windows\CurrentVersion\Policies\Explorer') then |
||
2265 | begin |
||
2266 | if reg.ValueExists('ConfirmFileDelete') then |
||
2267 | begin |
||
2268 | if reg.ReadBool('ConfirmFileDelete') then |
||
2269 | result := gpEnabled |
||
2270 | else |
||
2271 | result := gpDisabled; |
||
2272 | Exit; |
||
2273 | end; |
||
2274 | reg.CloseKey; |
||
2275 | end; |
||
2276 | {$ENDIF} |
||
2277 | |||
2278 | reg.RootKey := HKEY_CURRENT_USER; |
||
2279 | if reg.OpenKeyReadOnly('Software\Microsoft\Windows\CurrentVersion\Policies\Explorer') then |
||
2280 | begin |
||
2281 | if reg.ValueExists('ConfirmFileDelete') then |
||
2282 | begin |
||
2283 | if reg.ReadBool('ConfirmFileDelete') then |
||
2284 | result := gpEnabled |
||
2285 | else |
||
2286 | result := gpDisabled; |
||
2287 | end; |
||
2288 | reg.CloseKey; |
||
2289 | end; |
||
2290 | finally |
||
2291 | reg.Free; |
||
2292 | end; |
||
2293 | end; |
||
2294 | |||
2295 | class function TRecycleBinManager.RecyclerGroupPolicyRecycleBinSize: integer; |
||
2296 | var |
||
2297 | reg: TRegistry; |
||
2298 | begin |
||
2299 | result := -1; |
||
2300 | reg := TRegistry.Create; |
||
2301 | try |
||
2302 | // If a value is set in HKEY_LOCAL_MACHINE, it will be prefered, |
||
2303 | // even if gpedit.msc shows "Not configured"! |
||
2304 | {$IFDEF GroupPolicyAcceptHKLMTrick} |
||
2305 | reg.RootKey := HKEY_LOCAL_MACHINE; |
||
2306 | if reg.OpenKeyReadOnly('Software\Microsoft\Windows\CurrentVersion\Policies\Explorer') then |
||
2307 | begin |
||
2308 | if reg.ValueExists('RecycleBinSize') then |
||
2309 | begin |
||
2310 | result := reg.ReadInteger('RecycleBinSize'); |
||
2311 | Exit; |
||
2312 | end; |
||
2313 | reg.CloseKey; |
||
2314 | end; |
||
2315 | {$ENDIF} |
||
2316 | |||
2317 | reg.RootKey := HKEY_CURRENT_USER; |
||
2318 | if reg.OpenKeyReadOnly('Software\Microsoft\Windows\CurrentVersion\Policies\Explorer') then |
||
2319 | begin |
||
2320 | if reg.ValueExists('RecycleBinSize') then |
||
2321 | begin |
||
2322 | result := reg.ReadInteger('RecycleBinSize'); |
||
2323 | end; |
||
2324 | reg.CloseKey; |
||
2325 | end; |
||
2326 | finally |
||
2327 | reg.Free; |
||
2328 | end; |
||
2329 | end; |
||
2330 | |||
2331 | class function TRecycleBinManager.RecyclerConfirmationDialogEnabled: boolean; |
||
2332 | var |
||
2333 | gp: GPOLICYBOOL; |
||
2334 | begin |
||
2335 | gp := RecyclerGroupPolicyConfirmFileDelete; |
||
2336 | if gp <> gpUndefined then |
||
2337 | begin |
||
2338 | result := gp = gpEnabled; |
||
2339 | end |
||
2340 | else |
||
2341 | begin |
||
2342 | result := RecyclerShellStateConfirmationDialogEnabled; |
||
2343 | end; |
||
2344 | end; |
||
2345 | |||
2346 | class function TRecycleBinManager.RecyclerShellStateConfirmationDialogEnabled: boolean; |
||
2347 | var |
||
2348 | lpss: SHELLSTATE; |
||
2349 | bNoConfirmRecycle: boolean; |
||
2350 | |||
2351 | PSHGetSettings: TSHGetSettings; |
||
2352 | RBHandle: THandle; |
||
2353 | |||
2354 | reg: TRegistry; |
||
2355 | rbuf: array[0..255] of byte; |
||
2356 | begin |
||
2357 | PSHGetSettings := nil; |
||
2358 | result := false; // Avoid warning message |
||
2359 | |||
2360 | RBHandle := LoadLibrary(shell32); |
||
2361 | try |
||
2362 | if RBHandle <> 0 then |
||
2363 | begin |
||
2364 | PSHGetSettings := GetProcAddress(RBHandle, C_SHGetSettings); |
||
2365 | if not Assigned(@PSHGetSettings) then |
||
2366 | begin |
||
2367 | FreeLibrary(RBHandle); |
||
2368 | RBHandle := 0; |
||
2369 | end; |
||
2370 | end; |
||
2371 | |||
2372 | if (RBHandle <> 0) and Assigned(PSHGetSettings) then |
||
2373 | begin |
||
2374 | ZeroMemory(@lpss, SizeOf(lpss)); |
||
2375 | PSHGetSettings(lpss, SSF_NOCONFIRMRECYCLE); |
||
2376 | bNoConfirmRecycle := (lpss.Flags1 and 4) = 4; // fNoConfirmRecycle |
||
2377 | |||
2378 | result := not bNoConfirmRecycle; |
||
2379 | end |
||
2380 | else |
||
2381 | begin |
||
2382 | reg := TRegistry.Create; |
||
2383 | try |
||
2384 | // API function call failed. Probably because Windows is too old. |
||
2385 | // Try to read out from registry. |
||
2386 | // The 3rd bit of the 5th byte of "ShellState" is the value |
||
2387 | // of "fNoConfirmRecycle". |
||
2388 | |||
2389 | reg.RootKey := HKEY_CURRENT_USER; |
||
2390 | if reg.OpenKeyReadOnly('Software\Microsoft\Windows\CurrentVersion\Explorer') then |
||
2391 | begin |
||
2392 | ZeroMemory(@rbuf, SizeOf(rbuf)); |
||
2393 | reg.ReadBinaryData('ShellState', rbuf, SizeOf(rbuf)); |
||
2394 | |||
2395 | // Lese 3tes Bit vom 5ten Byte |
||
2396 | bNoConfirmRecycle := ((rbuf[4] and 4) = 4); |
||
2397 | result := not bNoConfirmRecycle; |
||
2398 | |||
2399 | reg.CloseKey; |
||
2400 | end |
||
2401 | else |
||
2402 | begin |
||
2403 | raise EAPICallError.CreateFmt(LNG_API_CALL_ERROR, [Format(LNG_NOT_CALLABLE, [C_SHGetSettings])]); |
||
2404 | end; |
||
2405 | finally |
||
2406 | reg.Free; |
||
2407 | end; |
||
2408 | end; |
||
2409 | finally |
||
2410 | if RBHandle <> 0 then FreeLibrary(RBHandle); |
||
2411 | end; |
||
2412 | end; |
||
2413 | |||
2414 | class procedure TRecycleBinManager.RecyclerConfirmationDialogSetEnabled(NewSetting: boolean); |
||
2415 | var |
||
2416 | lpss: SHELLSTATE; |
||
2417 | |||
2418 | PSHGetSetSettings: TSHGetSetSettings; |
||
2419 | RBHandle: THandle; |
||
2420 | |||
2421 | reg: TRegistry; |
||
2422 | rbuf: array[0..255] of byte; |
||
2423 | |||
89 | daniel-mar | 2424 | //dwResult: DWORD; |
2425 | lpdwResult: PDWORD_PTR; |
||
75 | daniel-mar | 2426 | begin |
2427 | PSHGetSetSettings := nil; |
||
89 | daniel-mar | 2428 | lpdwResult := nil; |
75 | daniel-mar | 2429 | |
2430 | RBHandle := LoadLibrary(shell32); |
||
2431 | try |
||
2432 | if RBHandle <> 0 then |
||
2433 | begin |
||
2434 | PSHGetSetSettings := GetProcAddress(RBHandle, C_SHGetSetSettings); |
||
2435 | if not Assigned(@PSHGetSetSettings) then |
||
2436 | begin |
||
2437 | FreeLibrary(RBHandle); |
||
2438 | RBHandle := 0; |
||
2439 | end; |
||
2440 | end; |
||
2441 | |||
2442 | if (RBHandle <> 0) and Assigned(PSHGetSetSettings) then |
||
2443 | begin |
||
2444 | ZeroMemory(@lpss, SizeOf(lpss)); |
||
2445 | |||
2446 | PSHGetSetSettings(lpss, SSF_NOCONFIRMRECYCLE, false); // Get |
||
2447 | |||
2448 | // Set 3rd bit equal to NewSetting |
||
2449 | if NewSetting then |
||
2450 | lpss.Flags1 := lpss.Flags1 or $00000004 |
||
2451 | else |
||
2452 | lpss.Flags1 := lpss.Flags1 and $FFFFFFFB; |
||
2453 | |||
2454 | PSHGetSetSettings(lpss, SSF_NOCONFIRMRECYCLE, true); // Set |
||
2455 | |||
2456 | SendMessageTimeout ( |
||
2457 | HWND_BROADCAST, WM_SETTINGCHANGE, |
||
2458 | 0, lParam (pChar ('ShellState')), |
||
89 | daniel-mar | 2459 | SMTO_ABORTIFHUNG, 5000, lpdwResult(*dwResult*) |
75 | daniel-mar | 2460 | ); |
2461 | end |
||
2462 | else |
||
2463 | begin |
||
2464 | reg := TRegistry.Create; |
||
2465 | try |
||
2466 | // API function call failed. Probably because Windows is too old. |
||
2467 | // Try to read out from registry. |
||
2468 | // The 3rd bit of the 5th byte of "ShellState" is the value |
||
2469 | // of "fNoConfirmRecycle". |
||
2470 | |||
2471 | reg.RootKey := HKEY_CURRENT_USER; |
||
2472 | if reg.OpenKey('Software\Microsoft\Windows\CurrentVersion\Explorer', false) then |
||
2473 | begin |
||
2474 | ZeroMemory(@rbuf, SizeOf(rbuf)); |
||
2475 | |||
2476 | reg.ReadBinaryData('ShellState', rbuf, SizeOf(rbuf)); // Get |
||
2477 | |||
2478 | // Set 3rd bit equal to NewSetting |
||
2479 | if NewSetting then |
||
2480 | rbuf[4] := rbuf[4] or $04 |
||
2481 | else |
||
2482 | rbuf[4] := rbuf[4] and $FB; |
||
2483 | |||
2484 | reg.WriteBinaryData('ShellState', rbuf, SizeOf(rbuf)); // Set |
||
2485 | |||
2486 | SendMessageTimeout ( |
||
2487 | HWND_BROADCAST, WM_SETTINGCHANGE, |
||
2488 | 0, lParam (pChar ('ShellState')), |
||
89 | daniel-mar | 2489 | SMTO_ABORTIFHUNG, 5000, lpdwResult(*dwResult*) |
75 | daniel-mar | 2490 | ); |
2491 | |||
2492 | reg.CloseKey; |
||
2493 | end |
||
2494 | else |
||
2495 | begin |
||
2496 | raise EAPICallError.CreateFmt(LNG_API_CALL_ERROR, [Format(LNG_NOT_CALLABLE, [C_SHGetSetSettings])]); |
||
2497 | end; |
||
2498 | finally |
||
2499 | reg.Free; |
||
2500 | end; |
||
2501 | end; |
||
2502 | finally |
||
2503 | if RBHandle <> 0 then FreeLibrary(RBHandle); |
||
2504 | end; |
||
2505 | end; |
||
2506 | |||
2507 | { TRbRecycleBinItem } |
||
2508 | |||
2509 | function TRbRecycleBinItem.GetSource: string; |
||
2510 | begin |
||
2511 | {$IFDEF UNICODE} |
||
2512 | result := SourceUnicode; |
||
2513 | {$ELSE} |
||
2514 | result := SourceAnsi; |
||
2515 | {$ENDIF} |
||
2516 | end; |
||
2517 | |||
2518 | end. |