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scriptLib.pas
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scriptLib.pas
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{
Copyright (C) 2002-2020 Massimo Melina (www.rejetto.com)
This file is part of HFS ~ HTTP File Server.
HFS is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
HFS is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with HFS; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
}
unit scriptLib;
interface
uses main, classesLib, iniFiles, types;
type
TmacroData = record
cd: TconnData;
tpl: Ttpl;
folder, f: Tfile;
afterTheList, archiveAvailable, hideExt, breaking: boolean;
aliases, tempVars: THashedStringList;
table: TStringDynArray;
logTS: boolean;
end;
var
defaultAlias: THashedStringList;
staticVars : THashedStringList; // these scripting variables are held for the whole run-time
eventScripts: Ttpl;
function tryApplyMacrosAndSymbols(var txt:string; var md:TmacroData; removeQuotings:boolean=true):boolean;
function macroQuote(s:string):string;
function runScript(script:string; table:TstringDynArray=NIL; tpl_:Ttpl=NIL; f:Tfile=NIL; folder:Tfile=NIL; cd:TconnData=NIL):string;
function runEventScript(event:string; table:TStringDynArray=NIL; cd:TconnData=NIL):string;
procedure resetLog();
implementation
uses windows, utilLib, trayLib, parserLib, graphics, classes, sysutils, StrUtils,
hslib, comctrls, math, controls, forms, clipbrd, MMsystem;
const
HEADER = '<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><style>'
+#13'dt, dd { margin:0; padding:0.2em 0.5em; white-space:pre; display:block; font-family:monospace; } dt { background:#dfd; } dd { background:#fdd; }'
+#13'</style></head><body>';
var
stopOnMacroRename: boolean; // this ugly global var is used to avoid endless recursion on a renaming rename event. this method won't work on a multithreaded system, but i opted for it because otherwise the changes would have been big.
cachedTpls: TcachedTpls;
function macrosLog(textIn, textOut:string; ts:boolean=FALSE):boolean;
var
s: string;
begin
s:='';
if ts then
s:='<hr>'+dateTimeToStr(now())+CRLF;
s:=s+#13'<dt>'+htmlEncode(textIn)+'</dt><dd>'+htmlEncode(textOut)+'</dd>';
if sizeOfFile(MACROS_LOG_FILE) = 0 then
s:=HEADER+s;
result:=appendTextFile(MACROS_LOG_FILE, s);
end; // macrosLog
procedure resetLog();
begin saveFile(MACROS_LOG_FILE, '') end;
function expandLinkedAccounts(account:Paccount):TStringDynArray;
var
i: integer;
begin
result:=NIL;
if account = NIL then exit;
i:=0;
result:=account.link;
while i < length(result) do
begin
account:=getAccount(result[i], TRUE);
inc(i);
if (account = NIL) or not account.enabled then continue;
addUniqueArray(result, account.link);
end;
end; // expandLinkedAccounts
function encodeMarkers(s:string):string;
var
i: integer;
t: string;
begin
for i:=0 to length(MARKERS)-1 do
begin
t:=MARKERS[i];
replace(t, '&#'+intToStr(charToUnicode(t[1]))+';', 1,1);
s:=replaceStr(s, MARKERS[i], t);
end;
result:=s;
end; // encodeMarkers
function noMacrosAllowed(s:string):string;
// prevent hack attempts
var
i: integer;
begin
i:=1;
enforceNUL(s);
repeat
i:=findMacroMarker(s, i);
if i = 0 then break;
replace(s, '&#'+intToStr(charToUnicode(s[i]))+';', i,i);
until false;
s:=reReplace(s,'%([-a-z0-9]+%)','%$1', 'mi');
result:=s;
end; // noMacrosAllowed
function isMacroQuoted(s:string):boolean;
begin result:=ansiStartsStr(MARKER_QUOTE, s) and ansiEndsStr(MARKER_UNQUOTE, s) end;
function macroQuote(s:string):string;
var
t: string;
begin
enforceNUL(s);
if not anyMacroMarkerIn(s) then
begin
result:=s;
exit;
end;
// an UNQUOTE would invalidate our quoting, so let's encode any of it
t:=MARKER_UNQUOTE;
replace(t, '&#'+intToStr(charToUnicode(t[1]))+';', 1,1);
result:=MARKER_QUOTE+replaceStr(s, MARKER_UNQUOTE, t)+MARKER_UNQUOTE
end; // macroQuote
function macroDequote(s:string):string;
begin
result:=s;
s:=trim(s);
if isMacroQuoted(s) then
result:=copy(s, length(MARKER_QUOTE)+1, length(s)-length(MARKER_QUOTE)-length(MARKER_UNQUOTE) );
end; // macroDequote
function cbMacros(fullMacro:string; pars:Tstrings; cbData:pointer):string;
var
md: ^TmacroData;
name, p: string;
unnamedPars: integer; // this is a guessing of the number of unnamed parameters. just guessing because there's no true distinction between a parameter "value" named "key", and parameter "key=value"
procedure macroError(msg:string);
begin result:='<div class=macroerror>macro error: '+name+nonEmptyConcat('<br>',msg)+'</div>' end;
procedure deprecatedMacro(what:string=''; instead:string='');
begin mainfrm.add2log('WARNING, deprecated macro: '+first(what, name)+nonEmptyConcat(' - Use instead: ',instead), NIL, clRed) end;
procedure unsatisfied(b:boolean=TRUE);
begin
if b then
macroError('cannot be used here')
end;
function satisfied(p:pointer):boolean;
begin
result:=assigned(p);
unsatisfied(not result);
end;
function parEx(idx:integer; name:string=''; doTrim:boolean=TRUE):string; overload;
var
i: integer;
begin
result:='';
if name > '' then
begin
i:=pars.IndexOfName(name);
if i >= 0 then
begin
result:=pars.valueFromIndex[i];
if doTrim then result:=trim(result);
exit;
end;
end;
if (idx < 0) // no numeric index accept
or (idx >= pars.count) // invalid index
or (name > '') and (pars.names[idx] > '') and not anycharIn(' '#13#10, pars.names[idx]) // this numerical index was already taken by a valid mnemonic name
then
raise Exception.create('invalid parameter index');
result:=pars[idx];
if doTrim then result:=trim(result);
end; // parEx
function parEx(name:string; doTrim:boolean=TRUE):string; overload;
begin result:=parEx(-1, name, doTrim) end;
function par(idx:integer; name:string=''; doTrim:boolean=TRUE):string; overload;
begin
try result:=parEx(idx, name, doTrim)
except result:='' end
end;
function par(name:string=''; doTrim:boolean=TRUE; defval:string=''):string; overload;
begin
try result:=parEx(-1, name, doTrim)
except result:=defval end
end;
function parI(idx:integer):int64; overload;
begin result:=strToInt64(par(idx)) end;
function parI(idx:integer; def:int64):int64; overload;
begin result:=strToInt64Def(par(idx), def) end;
function parI(name:string; def:int64):int64; overload;
begin result:=strToInt64Def(par(name), def) end;
function parF(idx:integer):extended; overload;
begin result:=strToFloat(par(idx)) end;
function parF(idx:integer; def:extended):extended; overload;
begin result:=strToFloatDef(par(idx), def) end;
function parF(name:string; def:extended):extended; overload;
begin result:=strToFloatDef(par(name), def) end;
// note this function works on N parameters
function parExist(names: array of string):boolean;
var
i: integer;
begin
result:=FALSE;
for i:=0 to length(names)-1 do
if pars.indexOfName(names[i]) < 0 then
exit;
result:=TRUE;
end; // parExist
procedure trueIf(condition:boolean);
begin if condition then result:='1' else result:='' end;
// this is for cases where normally we want a "clean" output. User can still detect outcome by using macro "length".
// Reason for having this instead of using in place a simple "result:=if_(cond, ' ')" is to evidence our purpose. It's not faster or cleaner, it's more semantic.
procedure spaceIf(condition:boolean);
begin if condition then result:=' ' else result:='' end;
function isFalse(s:string):boolean;
begin result:=(s='') or (strToFloatDef(s,1) = 0) end;
function isTrue(s:string):boolean; inline;
begin result:=not isFalse(s) end;
function getVarSpace(var varname:string):THashedStringList;
begin
varname:=trim(varname);
if ansiStartsStr(G_VAR_PREFIX, varname) then
begin
result:=staticVars;
delete(varname,1,length(G_VAR_PREFIX));
end
else if assigned(md.cd) then
result:=md.cd.vars
else if assigned(md.tempVars) then
result:=md.tempVars
else
raise Exception.create('no namespace available');
end; // getVarSpace
function getVar(varname:string):string; overload;
begin result:=getVarSpace(varname).values[varname] end;
// if par with name exists, then it's a var name, otherwise it's a constant value at specified index
function parVar(parname:string; idx:integer):string; overload;
begin
if parExist([parname]) then
result:=getVar(par(parname))
else
result:=pars[idx];
end; // parVar
function setVar(varname, value:string; space:THashedStringList=NIL):boolean;
var
o: Tobject;
i: integer;
begin
result:=FALSE;
if space = NIL then
space:=getVarSpace(varname);
if not satisfied(space) then exit;
i:=space.indexOfName(varname);
if i < 0 then
if value = '' then exit(TRUE) // all is good the way it is
else i:=space.add(varname+'='+value)
else
if value > '' then // in case of empty value, there's no need to assign, because we are going to delete it (after we cleared the bound object)
space.valueFromIndex[i]:=value;
assert(i >= 0, 'setVar: i<0');
// the previous hash object linked to this data is not valid anymore, and must be freed
o:=space.objects[i];
freeAndNIL(o);
if value = '' then
space.delete(i)
else
space.objects[i]:=NIL;
result:=TRUE;
end; // setVar
// we wrap pos() to switch between case sensitivity
function pos_(caseSensitive:boolean; ss, s:string; ofs:integer=1):integer;
begin
if caseSensitive then result:=posEx(ss,s,ofs)
else result:=ipos(ss,s,ofs)
end; // pos_
procedure allLogic(isAnd:boolean); // when not "isAnd", then it isOr ;-)
var
i: integer;
begin
// AND will return first FALSE value, or having none, the last TRUE value.
// OR will return last TRUE value, or having none, last value.
result:='';
for i:=0 to pars.count-1 do
begin
result:=par(i);
if isAnd xor isTrue(result) then exit;
end;
end; // allLogic
procedure substring();
var
i, j: integer;
s: string;
what2inc: integer;
caseSens: boolean;
begin
result:='';
// input what to be included in the result
s:=par('include');
try what2inc:=strToInt(s)
except // we also support the following values
if s = 'none' then what2inc:=0
else if s = 'both' then what2inc:=3
else if s = '1+2' then what2inc:=3
else what2inc:=1; // by default we include only the first delimiter
end;
caseSens:=isTrue(par('case'));
// find the delimiters
s:=macroDequote(par(2));
if pars[0] = '' then i:=1
else i:=pos_(caseSens, pars[0], s); // we don' trim this, so you can use blank-space as delimiter
if i = 0 then exit;
j:=pos_(caseSens, pars[1], s, i+1);
if j = 0 then j:=length(s)+1;
// apply what2inc
if what2inc and 1 = 0 then
inc(i, length(pars[0]));
if what2inc and 2 > 0 then
inc(j, length(pars[1]));
// end of the story
result:=macroQuote(copy(s, i, j-i));
end; // substring
procedure switch();
var
what, sep: string;
i, j: integer;
a: TStringDynArray;
begin
what:=par(0);
sep:=first(pars[1], ' '); // we don' trim this, so you can use blank-space as separator
i:=2;
while i < pars.count do
begin
if i = pars.count-1 then
begin
result:=macroDequote(par(i));
exit;
end;
a:=split(sep, par(i));
for j:=0 to length(a)-1 do
if sameText(a[j], what) then
begin
result:=macroDequote(par(i+1));
exit;
end;
inc(i, 2);
end;
result:='';
end; // switch
procedure cut();
var
from, upTo, l: integer;
s, v: string;
begin
v:=par('var');
if v = '' then
s:=par(2,'what')
else
s:=getVar(v);
l:=length(s);
from:=strToIntDef(par(0,'from'), 1);
if from < 0 then from:=l+from+1;
try upTo:=strToInt(parEx('to'))
except
upTo:=strToIntDef(par(1,'size'), 0);
if upTo = 0 then
upTo:=l
else if upTo > 0 then
upTo:=from+upTo-1
else
upTo:=l+upTo;
end;
result:=substr(s, from, upTo);
try setVar(parEx('remainder'), substr(s,1,from-1)+substr(s,upTo+1));
except end;
if v = '' then exit;
setVar(v, result);
result:='';
end; // cut
procedure minOrMax();
var
i: integer;
r, v: real;
min: boolean;
begin
min:=name='min';
r:=parF(0);
for i:=1 to pars.Count-1 do
begin
v:=parF(i);
if (v < r) and min
or (v > r) and not min then
r:=v;
end;
result:=floatToStr(r);
end; // minOrMax
procedure getUri();
var
i, ex, eq: integer;
vars: Tstrings;
s: string;
begin
if not satisfied(md.cd) then
exit;
try
result:=md.cd.conn.request.url;
if pars.count < 2 then exit;
s:=result;
result:=chop('?', s);
vars:=TstringList.create();
try
vars.delimiter:='&';
vars.quoteChar:=#0;
vars.delimitedText:=s;
if pars.count > 1 then
for i:=1 to pars.count-1 do
begin
s:=par(i);
if s = '' then continue;
eq:=pos('=', s);
if eq = 0 then
begin
if vars.indexOf(s) < 0 then
vars.add(pars[i]);
continue;
end;
ex:=vars.indexOfName(chop(eq,s));
if ex < 0 then
if s = '' then
continue // the parameter didn't exist, and we are trying to empty it
else
vars.add(par(i)) // didn't exist, put the whole
else
if s = '' then
vars.delete(ex) // exists, but we are trying to empty it
else
vars.valueFromIndex[ex]:=s; // exists, change the value
end;
if vars.count = 0 then exit;
for i:=vars.Count-1 downto 0 do
if vars[i] = '' then
vars.delete(i);
result:=result+'?'+vars.delimitedText;
finally vars.free end;
finally result:=macroQuote(result) end;
end; // getUri
procedure section(ofs:integer);
var
t: Ttpl;
s: string;
begin
if not satisfied(md.tpl) then exit;
s:=par(ofs);
if (par('file') = '') and ((s = '') or (pos('=',s) > 0)) then
begin // current template
result:='';
t:=md.tpl;
ofs:=parI('back', 0);
while ofs > 0 do
begin
dec(ofs);
t:=t.over;
if t = NIL then exit;
end;
try result:=t[p] except end;
exit;
end;
// template in other file
t:=Ttpl.create;
try
t.fullText:=loadTextFile(par(ofs, 'file'));
result:=t[p];
finally t.free end;
// templates outside hfs folder get quoted for security reasons
if anyCharIn('\/', par(ofs)) then
result:=macroQuote(result);
end; // section
function urlVar(k:string):string;
var
s: string;
begin
if not satisfied(md.cd) then exit;
s:=md.cd.urlvars.values[k];
if (s = '') and (md.cd.urlvars.indexOf(k) >= 0) then s:='1';
try
result:=noMacrosAllowed(s);
setVar(parEx('var'), result); // if no var is specified, it will break here, and result will have the value
result:='';
except end;
end; // urlVar
function maybeUrlvar(k:string):string;
begin
if (k = '') or (k[1] <> '?') then result:=k
else result:=urlvar(copy(k,2,MAXINT));
end; // maybeUrlvar
function compare(op,p1,p2:string):boolean;
var
r1,r2: double;
c: integer;
begin
try
r1:=StrToFloat(p1);
r2:=StrToFloat(p2);
c:=compare_(r1,r2)
except
c:=ansiCompareText(p1,p2);
end;
if op = '=' then result:= c=0
else if op = '>' then result:= c>0
else if op = '<' then result:= c<0
else if op = '>=' then result:= c>=0
else if op = '<=' then result:= c<=0
else if (op = '<>') or (op = '!=') then result:= c<>0
else result:=FALSE;
end; // compare
procedure infixOperators(ops:array of string);
var
i, j: integer;
s: string;
begin
if pars.count > 0 then exit;
for i:=0 to length(ops)-1 do
begin
j:=pos(ops[i], name);
if j = 0 then continue;
s:=trim(chop(j, length(ops[i]), name));
trueIf(compare(ops[i], maybeUrlvar(s), maybeUrlvar(trim(name))));
exit;
end;
end; // infixOperators
procedure call(code:string; ofs:integer=0);
var
i: integer;
begin
result:=code;
if pars.count=0 then
exit;
for i:=ofs to pars.Count-1 do
result:=replaceStr(result, format('$%d',[i-ofs+1]), pars[i]);
for i:=pars.count to pars.count+5 do
result:=replaceStr(result, format('$%d',[i-ofs+1]), '');
end; // call
procedure breadcrumbs();
var
e, d: string;
ae, ad: TstringDynArray;
i: integer;
fld: Tfile;
freeIt: boolean;
begin
freeIt:=FALSE;
if md.f = NIL then
fld:=md.folder
else
begin
fld:=md.f.parent;
if md.f.isTemp() then
begin
e:=extractFilePath(md.f.resource);
if length(e) > 3 then
e:=excludeTrailingPathDelimiter(e);
if e <> fld.resource then
begin
fld:=Tfile.createTemp(e);
fld.node:=md.f.node;
freeIt:=TRUE;
end
end;
end;
if not satisfied(fld) then exit;
e:=htmlEncode(encodeMarkers(fld.url(TRUE)));
d:=htmlEncode(encodeMarkers(fld.getFolder()+fld.name+'/'));
ae:=split('/', e);
ad:=split('/', d);
p:=macroDequote(p);
result:='';
e:='';
i:=length(ae)-1;
if ae[i] = '' then
dec(i);
for i:=parI('from',0) to i do
begin
e:=e+ae[i]+'/';
result:=result+xtpl(p, [
'%bread-url%', e,
'%bread-name%', ad[i],
'%bread-idx%', intToStr(i)
]);
end;
if freeIt then
freeAndNIL(fld);
end; // breadcrumbs
procedure inc_(v:integer=+1);
begin
try
setVar(p, intToStr(strToIntDef(getVar(p),0)+v*parI(1,1)));
result:='';
except
end;
end; // inc_
procedure convert();
var
dst, s: string;
c: ansichar;
begin
dst:=par(1);
s:=par(2);
if sameText(p, 'ansi') and sameText(dst, 'utf-8') then
result:=string(ansiToUTF8(ansistring(s)))
else if sameText(p, 'utf-8') then
if sameText(dst, 'ansi') then
result:=utf8ToAnsi(ansistring(s))
else if dst='dec' then
begin
result:='';
for c in UTF8encode(s) do
result:=result+intToStr(ord(c))+',';
setLength(result, length(result)-1);
end
else if dst='hex' then
begin
result:='';
for c in UTF8encode(s) do
result:=result+intToHex(ord(c));
end;
if isFalse(par('macros')) then
result:=noMacrosAllowed(result);
end; // convert
procedure encodeuri();
var
i: integer;
cs: Tcharset;
begin
result:='';
try cs:=[#0..#255]-strToCharset(parEx('only'));
except
cs:=['a'..'z','A'..'Z','0'..'9',',','/','#','&','?',':','$','@','=','+']
-strToCharset(par('add'))+strToCharset(par('not'));
end;
for i:=1 to length(p) do
if charInSet(p[i], cs) then
result:=result+p[i]
else
result:=result+'%'+intToHex(ord(p[i]),2)
end; // encodeuri
procedure addFolder();
var
parent: Ttreenode;
f, old: Tfile;
fn, name: string;
// extract the path from "name", if any, and assign it to "parent"
function validateAndExtractParent():boolean;
var
i: integer;
parentF: Tfile;
begin
result:=TRUE;
i:=lastDelimiter('/',name);
if i = 0 then exit;
result:=FALSE;
parentf:=mainfrm.findFilebyURL(chop(i+1, 0, name), NIL, FALSE);
if parentf = NIL then exit;
parent:=parentf.node; // ok, this is where we'll add the folder
result:=TRUE;
end; // validateAndExtractParent
begin
result:='';
if not stringExists(p, ['real','virtual']) then exit;
parent:=NIL;
if assigned(md.folder) then
parent:=md.folder.node;
if p = 'virtual' then
begin
name:=par(1);
if not validateAndExtractParent() then exit;
f:=Tfile.createVirtualFolder(name);
end
else
begin
fn:=uri2diskMaybe(par(1));
if not isAbsolutePath(fn) and assigned(md.folder) then
fn:=expandFileName(md.folder.resource+'\'+fn);
if not directoryExists(fn) then exit; // the real folder must exists on disk
// is a name specified in the third parameter, or should we deduce it from the disk path?
name:=par(2);
if (name = '') or containsStr(name,'=') then
name:=extractFileName(fn);
if not validateAndExtractParent() then exit;
f:=Tfile.create(fn);
f.name:=name;
end;
if not validFilename(f.name) then
begin
f.free;
exit;
end;
old:=mainfrm.findFilebyURL(f.name, nodeToFile(parent), FALSE);
if assigned(old) then
if not old.isRoot()
and (not parExist(['overwrite']) or isTrue(par('overwrite'))) then
try old.node.delete() except end // delete existing one
else
begin
f.free;
exit;
end;
if mainfrm.addFile(f, parent, TRUE) = NIL then
f.free
else
spaceIf(TRUE)
end; // addFolder
procedure setItem();
var
f: Tfile;
act: TfileAction;
function get(prefix:string):TStringDynArray;
begin
result:=onlyExistentAccounts(split(';', parEx(prefix+FILEACTION2STR[act])));
uniqueStrings(result);
end;
procedure setAttr(a:TfileAttribute; parName:string);
begin
try
if isTrue(parEx(parname)) then
include(f.flags, a)
else
exclude(f.flags, a);
except end;
end; // setAttr
begin
result:='';
f:=mainfrm.findFileByURL(p, md.folder);
if f = NIL then exit; // doesn't exist
try f.setDynamicComment(macroDequote(parEx('comment'))) except end;
try
f.name:=parEx('name');
if assigned(f.node) then
f.node.text:=f.name;
except end;
try f.resource:=parEx('resource') except end;
try f.diffTpl:=parEx('diff template') except end;
try f.filesFilter:=parEx('files filter') except end;
try f.foldersFilter:=parEx('folders filter') except end;
// following commands make no sense on temporary items
if freeIfTemp(f) then exit;
setAttr(FA_HIDDEN, 'hide');
setAttr(FA_HIDDENTREE, 'hide tree');
setAttr(FA_DONT_LOG, 'no log');
setAttr(FA_ARCHIVABLE, 'archivable');
setAttr(FA_BROWSABLE, 'browsable');
setAttr(FA_DL_FORBIDDEN, 'download forbidden');
if f.isFolder() then
try f.dontCountAsDownloadMask:=parEx('not as download') except end
else
setAttr(FA_DONT_COUNT_AS_DL, 'not as download');
for act:=low(act) to high(act) do
begin
try f.accounts[act]:=get('') except end;
try addUniqueArray(f.accounts[act], get('add ')) except end;
try removeArray(f.accounts[act], get('remove ')) except end;
end;
VFSmodified:=TRUE;
mainfrm.filesBox.repaint();
end; // setItem
function getItemIcon(f:Tfile):string;
begin
if f = NIL then
result:=''
else if (f.icon >= 0) or (mainfrm.useSystemIconsChk.checked and f.isFile()) then
result:='/~img'+intToStr(f.getSystemIcon())
else if f.isFile() then
result:='/~img_file'
else if f.isFolder() then
if FA_UNIT in f.flags then
result:=format('/~img%d', [f.getIconForTreeview()])
else
result:='/~img_folder'
else if f.isLink() then
result:='/~img_link'
else
result:='';
end; // getItemIcon
procedure deleteItem();
var
f: Tfile;
begin
f:=mainfrm.findFileByURL(p);
spaceIf(assigned(f)); // so you can know if something really has been deleted
if f = NIL then exit; // doesn't exist
mainFrm.remove(f.node);
VFSmodified:=TRUE;
end; // deleteItem
procedure getItem();
var
f: Tfile;
act: TfileAction;
w: string;
function getAttr(name:string; a:TfileAttribute):boolean;
begin
result:= w = name;
if result then
trueIf(a in f.flags);
end; // setAttr
begin
result:='';
f:=mainfrm.findFileByURL(p, md.folder);
if f = NIL then exit; // doesn't exist
try
w:=par(1);
if w = 'exists' then
result:='1'
else if w = 'comment' then
result:=f.getDynamicComment()
else if w = 'resource' then
result:=f.resource
else if w = 'icon' then
result:=getItemIcon(f)
else if getAttr('hide', FA_HIDDEN)
or getAttr('hide tree', FA_HIDDENTREE)
or getAttr('no log', FA_DONT_LOG) then
exit
else if w = 'not as download' then
if f.isFolder() then
result:=f.dontCountAsDownloadMask
else
trueIf(FA_DONT_COUNT_AS_DL in f.flags);
for act:=low(act) to high(act) do
if compareText(w, FILEACTION2STR[act]) = 0 then
begin
result:=join(';', f.accounts[act]);
exit;
end;
finally freeIfTemp(f) end;
end; // getItem
procedure foreach();
var
i, e: integer;
s, code: string;
begin
e:=pars.count-2; // 3 parameters minimum (the check is outside)
code:=macroDequote(par(pars.count-1));
with TfastStringAppend.create do
try
for i:=1 to e do
begin
setVar(p, par(i));
s:=code;
applyMacrosAndSymbols(s, cbMacros, cbData);
append(s);
end;
result:=reset();
finally free end;
end; // foreach
procedure forLine();
var
lines: TStringList;
line, code, run: string;
i: integer;
begin
code:=macroDequote(par(pars.count-1));
lines:=TStringList.create();
with TfastStringAppend.create do
try
lines.text:= getVar(par('var'));
for line in lines do
begin
i:=pos('=',line);
if i > 0 then
begin
setVar('line-key', Copy(line, 1, i-1));
setVar('line-value', Copy(line, i+1, MAXINT));
end;
setVar('line', line);
run:=code;
applyMacrosAndSymbols(run, cbMacros, cbData);
append(run);
end;
result:=reset();
finally
Free;
lines.Free;
end;
end; //forLine
procedure for_();
var
b, e, i, d: integer;
s, code: string;
begin
try
b:=strToInt(par(1));
e:=strToInt(par(2));
try
d:=strToInt(par(3));
code:=par(4);
except
d:=1;
code:=par(3);
end;
if d = 0 then exit;
if (e < b) and (d > 0) then d:=-d; // we care