diff --git a/src/shared/utils.pas b/src/shared/utils.pas
index 5cd2af8831b8e7a1673338b1895691610f7f463a..946e4f5a07c7a31a5422fad1f2f479fb83ffce6a 100644 (file)
--- a/src/shared/utils.pas
+++ b/src/shared/utils.pas
interface
uses
- SysUtils, Classes;
+ SysUtils, Classes, md5;
// ////////////////////////////////////////////////////////////////////////// //
SSArray = array of ShortString;
+const wadExtensions: array [0..6] of AnsiString = (
+ '.dfz',
+ '.wad',
+ '.dfwad',
+ '.pk3',
+ '.pak',
+ '.zip',
+ '.dfzip'
+);
+
+
// ////////////////////////////////////////////////////////////////////////// //
type
TUtf8DecoderFast = packed record
function setFilenameExt (const fn, ext: AnsiString): AnsiString;
function forceFilenameExt (const fn, ext: AnsiString): AnsiString;
+// rewrites slashes to '/'
+function fixSlashes (s: AnsiString): AnsiString;
+
+// replaces all the shitty characters with '_'
+// (everything except alphanumerics, '_', '.')
+function sanitizeFilename (s: AnsiString): AnsiString;
+
+function isAbsolutePath (const s: AnsiString): Boolean;
+function isRootPath (const s: AnsiString): Boolean;
+
// strips out name from `fn`, leaving trailing slash
function getFilenamePath (const fn: AnsiString): AnsiString;
function upcase1251 (ch: AnsiChar): AnsiChar; inline;
function locase1251 (ch: AnsiChar): AnsiChar; inline;
+function IsValid1251 (ch: Word): Boolean;
+function IsPrintable1251 (ch: AnsiChar): Boolean;
function toLowerCase1251 (const s: AnsiString): AnsiString;
function utf8to1251 (s: AnsiString): AnsiString;
-// `pathname` will be modified if path is valid
-// `lastIsDir` should be `true` if we are searching for directory
-// nobody cares about shitdoze, so i'll use the same code path for it
+// findFileCI takes case-insensitive path, traverses it, and rewrites it to
+// a case-sensetive one (using real on-disk names). return value means 'success'.
+// if some dir or file wasn't found, pathname is undefined (destroyed, but not
+// necessarily cleared).
+// last name assumed to be a file, not directory (unless `lastIsDir` flag is set).
function findFileCI (var pathname: AnsiString; lastIsDir: Boolean=false): Boolean;
-// return fixed AnsiString or empty AnsiString
+// findDiskWad tries to find the wad file using common wad extensions
+// (see `wadExtensions` array).
+// returns real on-disk filename, or empty string.
+// original wad extension is used as a hint for the first try.
+// also, this automatically performs `findFileCI()`.
function findDiskWad (fname: AnsiString): AnsiString;
+// slashes must be normalized!
+function isWadNamesEqu (wna, wnb: AnsiString): Boolean;
// they throws
function openDiskFileRO (pathname: AnsiString): TStream;
function createDiskFile (pathname: AnsiString): TStream;
+// create file if necessary, but don't truncate the existing one
+function openDiskFileRW (pathname: AnsiString): TStream;
// little endian
procedure writeSign (st: TStream; const sign: AnsiString);
// double quotes supports c-style escapes
// function will select quote mode automatically
function quoteStr (const s: AnsiString): AnsiString;
+// separate single-quote and double-quote escape functions
+function squoteStr (const s: AnsiString): AnsiString;
+function dquoteStr (const s: AnsiString): AnsiString;
type
procedure ZeroMemory (Dest: Pointer; Len: LongWord); inline;
+type
+ TDiskFileInfo = record
+ diskName: AnsiString;
+ size: LongInt;
+ age: LongInt;
+ // not changed by info getter; used in other parts of the code
+ userName: AnsiString;
+ tag: Integer;
+ hash: TMD5Digest;
+ udata: Pointer;
+ end;
+
+function GetDiskFileInfo (fname: AnsiString; var info: TDiskFileInfo): Boolean;
+
+
implementation
uses
xstreams;
-
// ////////////////////////////////////////////////////////////////////////// //
procedure CopyMemory (Dest: Pointer; Src: Pointer; Len: LongWord); inline;
begin
end;
+// ////////////////////////////////////////////////////////////////////////// //
+// rewrites slashes to '/'
+function fixSlashes (s: AnsiString): AnsiString;
+{$IFDEF WINDOWS}
+var
+ f: Integer;
+{$ENDIF}
+begin
+ result := s;
+ {$IFDEF WINDOWS}
+ for f := 1 to length(result) do if (result[f] = '\') then result[f] := '/';
+ {$ENDIF}
+end;
+
+// replaces all the shitty characters with '_'
+// (everything except alphanumerics, '_', '.')
+function sanitizeFilename (s: AnsiString): AnsiString;
+var
+ i: Integer;
+const
+ leaveChars: set of Char = [ '0'..'9', 'A'..'Z', 'a'..'z', '_', '.', #192..#255 ];
+ replaceWith: Char = '_';
+begin
+ result := s;
+ for i := 1 to length(result) do
+ if not (result[i] in leaveChars) then
+ result[i] := replaceWith;
+end;
+
+function isAbsolutePath (const s: AnsiString): Boolean;
+begin
+ result := false;
+ if (length(s) = 0) then exit;
+ {$IFDEF WINDOWS}
+ if (s[1] = '/') or (s[1] = '\') then begin result := true; exit; end;
+ if (length(s) > 2) and (s[2] = ':') and ((s[3] = '/') or (s[3] = '\')) then begin result := true; exit; end;
+ {$ELSE}
+ result := (s[1] = '/');
+ {$ENDIF}
+end;
+
+
+function isRootPath (const s: AnsiString): Boolean;
+begin
+ result := false;
+ if (length(s) = 0) then exit;
+ {$IFDEF WINDOWS}
+ if (s = '/') or (s = '\') then begin result := true; exit; end;
+ if (length(s) = 3) and (s[2] = ':') and ((s[3] = '/') or (s[3] = '\')) then begin result := true; exit; end;
+ {$ELSE}
+ result := (s = '/');
+ {$ENDIF}
+end;
+
+
// ////////////////////////////////////////////////////////////////////////// //
constructor TSimpleList.TEnumerator.Create (const aitems: TItemArr; acount: Integer);
begin
const
cp1251: array[0..127] of Word = (
$0402,$0403,$201A,$0453,$201E,$2026,$2020,$2021,$20AC,$2030,$0409,$2039,$040A,$040C,$040B,$040F,
- $0452,$2018,$2019,$201C,$201D,$2022,$2013,$2014,$003F,$2122,$0459,$203A,$045A,$045C,$045B,$045F,
+ $0452,$2018,$2019,$201C,$201D,$2022,$2013,$2014,$FFFD,$2122,$0459,$203A,$045A,$045C,$045B,$045F,
$00A0,$040E,$045E,$0408,$00A4,$0490,$00A6,$00A7,$0401,$00A9,$0404,$00AB,$00AC,$00AD,$00AE,$0407,
$00B0,$00B1,$0406,$0456,$0491,$00B5,$00B6,$00B7,$0451,$2116,$0454,$00BB,$0458,$0405,$0455,$0457,
$0410,$0411,$0412,$0413,$0414,$0415,$0416,$0417,$0418,$0419,$041A,$041B,$041C,$041D,$041E,$041F,
// ////////////////////////////////////////////////////////////////////////// //
-function quoteStr (const s: AnsiString): AnsiString;
-
- function squote (const s: AnsiString): AnsiString;
- var
- f: Integer;
+function squoteStr (const s: AnsiString): AnsiString;
+var
+ f: Integer;
+begin
+ result := '''';
+ for f := 1 to Length(s) do
begin
- result := '''';
- for f := 1 to Length(s) do
- begin
- if (s[f] = '''') then result += '''';
- result += s[f];
- end;
- result += '''';
+ if (s[f] = '''') then result += '''';
+ result += s[f];
end;
+ result += '''';
+end;
- function dquote (const s: AnsiString): AnsiString;
- var
- f: Integer;
- ch: AnsiChar;
+function dquoteStr (const s: AnsiString): AnsiString;
+var
+ f: Integer;
+ ch: AnsiChar;
+begin
+ result := '"';
+ for f := 1 to Length(s) do
begin
- result := '"';
- for f := 1 to Length(s) do
+ ch := s[f];
+ if (ch = #0) then result += '\z'
+ else if (ch = #9) then result += '\t'
+ else if (ch = #10) then result += '\n'
+ else if (ch = #13) then result += '\r'
+ else if (ch = #27) then result += '\e'
+ else if (ch < ' ') or (ch = #127) then
begin
- ch := s[f];
- if (ch = #0) then result += '\z'
- else if (ch = #9) then result += '\t'
- else if (ch = #10) then result += '\n'
- else if (ch = #13) then result += '\r'
- else if (ch = #27) then result += '\e'
- else if (ch < ' ') or (ch = #127) then
- begin
- result += '\x';
- result += LowerCase(IntToHex(Integer(ch), 2));
- end
- else if (ch = '"') or (ch = '\') then
- begin
- result += '\';
- result += ch;
- end
- else
- begin
- result += ch;
- end;
+ result += '\x';
+ result += LowerCase(IntToHex(Integer(ch), 2));
+ end
+ else if (ch = '"') or (ch = '\') then
+ begin
+ result += '\';
+ result += ch;
+ end
+ else
+ begin
+ result += ch;
end;
- result += '"';
end;
+ result += '"';
+end;
+function quoteStr (const s: AnsiString): AnsiString;
var
needSingle: Boolean = false;
f: Integer;
for f := 1 to Length(s) do
begin
if (s[f] = '''') then begin needSingle := true; continue; end;
- if (s[f] < ' ') or (s[f] = #127) then begin result := dquote(s); exit; end;
+ if (s[f] < ' ') or (s[f] = #127) then begin result := dquoteStr(s); exit; end;
end;
- if needSingle then result := squote(s) else result := ''''+s+'''';
+ if needSingle then result := squoteStr(s) else result := ''''+s+'''';
end;
function hasWadExtension (const fn: AnsiString): Boolean;
var
- ext: AnsiString;
+ ext, newExt: AnsiString;
begin
ext := getFilenameExt(fn);
- result := StrEquCI1251(ext, '.wad') or StrEquCI1251(ext, '.pk3') or StrEquCI1251(ext, '.zip') or StrEquCI1251(ext, '.dfz');
+ result := true;
+ for newExt in wadExtensions do if (StrEquCI1251(ext, newExt)) then exit;
+ result := false;
+ //result := StrEquCI1251(ext, '.wad') or StrEquCI1251(ext, '.pk3') or StrEquCI1251(ext, '.zip') or StrEquCI1251(ext, '.dfz');
end;
if not hasWadExtension(result) then result := result+'.wad';
end;
+
function isWadData (data: Pointer; len: LongWord): Boolean;
var p: PChar;
begin
function isWadPath (const fn: AnsiString): Boolean;
var
pos: Integer;
- s: AnsiString;
+ s, wext: AnsiString;
begin
result := false;
pos := 1;
if (pos-4 > 1) and (fn[pos-4] = '.') and ((fn[pos+1] = '\') or (fn[pos+1] = '/')) then
begin
s := Copy(fn, pos-4, 4);
- if StrEquCI1251(s, '.wad') or StrEquCI1251(s, '.pk3') or StrEquCI1251(s, '.zip') or StrEquCI1251(s, '.dfz') then
+ for wext in wadExtensions do
begin
- result := true;
- exit;
+ if strEquCI1251(s, wext) then
+ begin
+ result := true;
+ exit;
+ end;
end;
end;
end;
result := ch;
end;
+function IsValid1251 (ch: Word): Boolean;
+begin
+ result := ((ch = Ord('?')) or (wc2shitmap[ch] <> '?')) and (wc2shitmap[ch] <> #$98)
+end;
+
+function IsPrintable1251 (ch: AnsiChar): Boolean;
+begin
+ result := (ch >= #32) and (ch <> #127) and (ch <> #$98)
+end;
+
function strEquCI1251 (const s0, s1: AnsiString): Boolean;
var
// ////////////////////////////////////////////////////////////////////////// //
-// `pathname` will be modified if path is valid
-// `lastIsDir` should be `true` if we are searching for directory
-// nobody cares about shitdoze, so i'll use the same code path for it
+// findFileCI eats case-insensitive path, traverses it and rewrites it to a
+// case-sensetive. result value means success.
+// if file/dir not founded than pathname is in undefined state!
function findFileCI (var pathname: AnsiString; lastIsDir: Boolean=false): Boolean;
var
sr: TSearchRec;
end;
-const fileExtensions: array [0..6] of AnsiString = ('.dfz', '.wad', '.dfwad', '.pk3', '.pak', '.zip', '.dfzip');
+function isWadNamesEqu (wna, wnb: AnsiString): Boolean;
+var
+ ext, newExt: AnsiString;
+ found: Boolean;
+begin
+ result := StrEquCI1251(wna, wnb);
+ if result then exit;
+ // check first ext
+ ext := getFilenameExt(wna);
+ found := false;
+ for newExt in wadExtensions do if (StrEquCI1251(ext, newExt)) then begin found := true; break; end;
+ if not found then exit;
+ // check second ext
+ ext := getFilenameExt(wnb);
+ found := false;
+ for newExt in wadExtensions do if (StrEquCI1251(ext, newExt)) then begin found := true; break; end;
+ if not found then exit;
+ wna := forceFilenameExt(wna, '');
+ wnb := forceFilenameExt(wnb, '');
+ result := StrEquCI1251(wna, wnb);
+end;
function findDiskWad (fname: AnsiString): AnsiString;
var
origExt := getFilenameExt(fname);
fname := forceFilenameExt(fname, '');
//writeln(' findDiskWad01: fname=<', fname, '>; origExt=<', origExt, '>');
- for newExt in fileExtensions do
+ for newExt in wadExtensions do
begin
//writeln(' findDiskWad02: fname=<', fname, '>; origExt=<', origExt, '>; newExt=<', newExt, '>');
if (StrEquCI1251(newExt, origExt)) then
end;
+function openDiskFileRW (pathname: AnsiString): TStream;
+var
+ path: AnsiString;
+ oldname: AnsiString;
+begin
+ //writeln('*** TRYING R/W FILE "', pathname, '"');
+ path := ExtractFilePath(pathname);
+ if length(path) > 0 then
+ begin
+ if not findFileCI(path, true) then raise Exception.Create('can''t create file "'+pathname+'"');
+ end;
+ oldname := pathname;
+ if findFileCI(oldname) then
+ begin
+ //writeln('*** found old file "', oldname, '"');
+ result := TFileStream.Create(oldname, fmOpenReadWrite or fmShareDenyWrite);
+ end
+ else
+ begin
+ result := TFileStream.Create(path+ExtractFileName(pathname), fmCreate);
+ end;
+end;
+
+
procedure writeIntegerLE (st: TStream; vp: Pointer; size: Integer);
{$IFDEF ENDIAN_LITTLE}
begin
end;
+function GetDiskFileInfo (fname: AnsiString; var info: TDiskFileInfo): Boolean;
+var
+ age: LongInt;
+ size: LongInt;
+ handle: THandle;
+begin
+ result := false;
+ if (length(fname) = 0) then exit;
+ if not findFileCI(fname) then exit;
+ // get age
+ age := FileAge(fname);
+ if (age = -1) then exit;
+ // get size
+ handle := FileOpen(fname, fmOpenRead or fmShareDenyNone);
+ if (handle = THandle(-1)) then exit;
+ size := FileSeek(handle, 0, fsFromEnd);
+ FileClose(handle);
+ if (size = -1) then exit;
+ // fill info
+ info.diskName := fname;
+ info.size := size;
+ info.age := age;
+ result := true;
+end;
+
+
(*
var
ss: ShortString;