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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 2 | daniel-mar | 1 | unit MD5; |
| 2 | |||
| 3 | interface |
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| 4 | |||
| 5 | uses |
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| 6 | Classes; |
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| 7 | |||
| 8 | function md5file(const filename: string): string; |
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| 9 | procedure MD5FileToStringList(amd5file: string; slOut: TStringList); |
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| 10 | |||
| 11 | implementation |
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| 12 | |||
| 13 | uses |
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| 14 | SysUtils, IdHashMessageDigest, idHash, Common, LongFilenameOperations; |
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| 15 | |||
| 16 | function md5file(const filename: string): string; |
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| 17 | var |
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| 18 | IdMD5: TIdHashMessageDigest5; |
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| 19 | FS: TFileStream; |
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| 20 | begin |
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| 21 | IdMD5 := TIdHashMessageDigest5.Create; |
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| 22 | FS := TFileStream.Create(filename, fmOpenRead or fmShareDenyWrite); |
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| 23 | try |
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| 24 | {$IFDEF UNICODE} // I actually do not know at which version of Delphi/Indy, this has changed. |
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| 25 | Result := IdMD5.HashStreamAsHex(FS); |
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| 26 | {$ELSE} |
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| 27 | Result := IdMD5.AsHex(IdMD5.HashValue(FS)); |
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| 28 | {$ENDIF} |
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| 29 | finally |
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| 30 | FS.Free; |
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| 31 | IdMD5.Free; |
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| 32 | end; |
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| 33 | end; |
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| 34 | |||
| 35 | procedure MD5FileToStringList(amd5file: string; slOut: TStringList); |
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| 36 | var |
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| 37 | sLine: string; |
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| 38 | originalFilename: string; |
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| 39 | expectedChecksum: string; |
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| 40 | fil: THandle; |
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| 41 | csum: TChecksum; |
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| 42 | firstLinePassed: boolean; |
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| 43 | forceUTF8: boolean; |
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| 44 | begin |
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| 45 | if not FileExists(amd5file) then |
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| 46 | exit; |
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| 47 | |||
| 48 | MyAssignFile(fil, amd5file); |
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| 49 | try |
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| 50 | MyReset(fil); |
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| 51 | firstLinePassed := false; |
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| 52 | forceUTF8 := false; |
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| 53 | while not MyEOF(fil) do |
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| 54 | begin |
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| 55 | MyReadLn(fil, sLine); |
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| 56 | |||
| 57 | {$REGION 'Try UTF8 decode'} |
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| 58 | if not firstLinePassed and (length(sLine)>2) and (sLine[1]=#$EF) and (sLine[2]=#$BB) and (sLine[3]=#$BF) then |
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| 59 | begin |
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| 60 | delete(sLine,1,3); // Remove BOM |
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| 61 | forceUTF8 := true; |
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| 62 | end; |
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| 63 | firstLinePassed := true; |
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| 64 | |||
| 65 | if forceUTF8 or (Pos(#$FFFD, Utf8ToString(RawByteString(sLine))) = 0) then |
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| 66 | sLine := Utf8ToString(RawByteString(sLine)); |
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| 67 | {$ENDREGION} |
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| 68 | |||
| 69 | if Copy(Trim(sLine),1,1) = ';' then continue; |
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| 70 | // 25bfdef2651071efdd08bb3404797384 *Example.doc |
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| 71 | sLine := Trim(sLine); |
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| 72 | if sLine = '' then |
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| 73 | continue; |
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| 74 | expectedChecksum := Copy(sLine, 1, 32); |
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| 75 | Delete(sLine, 1, 32); |
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| 76 | sLine := Trim(sLine); |
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| 77 | if Copy(sLine, 1, 1) = '*' then |
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| 78 | Delete(sLine, 1, 1); |
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| 79 | sLine := Trim(sLine); |
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| 80 | originalFilename := sLine; |
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| 81 | |||
| 82 | //slOut.Values[originalFilename] := expectedChecksum; // <-- with this, files cannot have an equal sign |
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| 83 | slOut.OwnsObjects := true; |
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| 84 | csum := TChecksum.Create; |
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| 85 | csum.checksum := expectedChecksum; |
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| 86 | slOut.AddObject(originalFilename, csum); |
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| 87 | end; |
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| 88 | finally |
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| 89 | MyCloseFile(fil); |
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| 90 | end; |
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| 91 | end; |
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| 92 | |||
| 93 | end. |