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#include "include-exclude.h"
#include <fnmatch.h>
void IncludeExcludeAdd(HashratCtx *Ctx, int Type, const char *Item)
{
ListNode *Node;
char *Token=NULL;
const char *ptr;
static int PathRuleAdded=FALSE;
//if we get given an include with no previous excludes, then
//set CTX_EXCLUDE as the default
if (! IncludeExclude)
{
IncludeExclude=ListCreate();
}
//if the first rule added for file paths/names is 'include, then set the default to be exclude
//if the first such rule is an exlcude, then set the default to be include
if (! PathRuleAdded)
{
if (Type==CTX_INCLUDE)
{
Ctx->Flags |= CTX_EXCLUDE;
PathRuleAdded=TRUE;
}
else if (Type==CTX_EXCLUDE)
{
Ctx->Flags |= CTX_INCLUDE;
PathRuleAdded=TRUE;
}
}
ptr=GetToken(Item, ",",&Token, GETTOKEN_QUOTES);
while (ptr)
{
Node=ListAddItem(IncludeExclude, CopyStr(NULL, Token));
Node->ItemType=Type;
ptr=GetToken(ptr, ",",&Token, GETTOKEN_QUOTES);
}
Destroy(Token);
}
void IncludeExcludeLoadExcludesFromFile(const char *Path, HashratCtx *Ctx)
{
STREAM *S;
char *Tempstr=NULL;
S=STREAMOpen(Path, "r");
if (S)
{
Tempstr=STREAMReadLine(Tempstr, S);
while (Tempstr)
{
StripTrailingWhitespace(Tempstr);
IncludeExcludeAdd(Ctx, CTX_EXCLUDE, Tempstr);
Tempstr=STREAMReadLine(Tempstr, S);
}
STREAMClose(S);
}
DestroyString(Tempstr);
}
//this checks include and exclude by name. These can override each other, so you can exclude a pattern,
//but include things that match that pattern that are members of an 'include' subpattern
static int IncludeExcludeCheckFilenames(HashratCtx *Ctx, const char *Path, struct stat *FStat)
{
ListNode *Curr;
const char *mptr, *dptr;
int result=CTX_INCLUDE;
if (Ctx->Flags & CTX_EXCLUDE) result=CTX_EXCLUDE;
if (FStat && S_ISDIR(FStat->st_mode)) result=CTX_INCLUDE;
Curr=ListGetNext(IncludeExclude);
while (Curr)
{
mptr=(char *) Curr->Item;
dptr=Path;
//if match pattern doesn't start with '/' then we want to strip that off the current path
//so that we can match against it. However if the match pattern contains no '/' at all, then
//it's a file name rather than a path, in which case we should use basename on both it and
//the current path
if (*mptr != '/')
{
if (strchr(mptr,'/'))
{
if (*dptr=='/') dptr++;
}
else
{
mptr=GetBasename(mptr);
dptr=GetBasename(Path);
}
}
switch (Curr->ItemType)
{
case CTX_INCLUDE:
if (fnmatch(mptr,dptr,0)==0) result=CTX_INCLUDE;
break;
case CTX_EXCLUDE:
if (fnmatch(mptr,dptr,0)==0) result=CTX_EXCLUDE;
break;
/*
case INEX_INCLUDE_DIR:
if (strncmp(mptr,dptr,StrLen(mptr))==0) result=TRUE;
break;
case INEX_EXCLUDE_DIR:
if (strncmp(mptr,dptr,StrLen(mptr))==0) result=FALSE;
break;
*/
}
Curr=ListGetNext(Curr);
}
return(result);
}
int IncludeExcludeCheck(HashratCtx *Ctx, const char *Path, struct stat *FStat)
{
ListNode *Curr;
const char *mptr, *dptr;
int result, mult;
time_t When;
if (FStat)
{
if (Ctx->Flags & CTX_ONE_FS)
{
if (Ctx->StartingFS==0) Ctx->StartingFS=FStat->st_dev;
else if (FStat->st_dev != Ctx->StartingFS) return(CTX_ONE_FS);
}
if ((Ctx->Flags & CTX_EXES) && (! (FStat->st_mode & (S_IXUSR | S_IXGRP | S_IXOTH)))) return(CTX_EXCLUDE);
}
//'CheckIncludeExclude' checks 'normal' includes and excludes (by filename). The rest of this function
//checks properties of included files, like their mtime
result=IncludeExcludeCheckFilenames(Ctx, Path, FStat);
if (result == CTX_INCLUDE)
{
Curr=ListGetNext(IncludeExclude);
while (Curr)
{
mptr=(char *) Curr->Item;
mult=60;
switch (Curr->ItemType)
{
case CTX_MYEAR:
mult *= 365;
case CTX_MTIME:
mult *= 24 * 60;
//fall through
case CTX_MMIN:
//don't even consider mtime if we don't have a File Stat for the item, or if it's a directory
if (FStat && (! S_ISDIR(FStat->st_mode)))
{
if (*mptr=='-')
{
When=Now - atol(mptr+1) * mult;
//'since' a time will mean that the mtime for the file will be greater than that time
if (FStat->st_mtime < When) result=CTX_EXCLUDE;
}
else if (*mptr=='+')
{
When=Now - atol(mptr+1) * mult;
//'before' a time will mean that the mtime for the file will be less than that time
if (FStat->st_mtime > When) result=CTX_EXCLUDE;
}
else
{
When=Now - atol(mptr) * mult;
if ( (FStat->st_mtime < When) || (FStat->st_mtime > (When + mult)) ) result=CTX_EXCLUDE;
}
}
break;
}
Curr=ListGetNext(Curr);
}
}
return(result);
}
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