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/*
HTTrack external callbacks example : changing folder names ending with ".com"
with ".c0m" as a workaround of IIS bug (see KB 275601)
How to build: (callback.so or callback.dll)
With GNU-GCC:
gcc -O -g3 -Wall -D_REENTRANT -shared -o mycallback.so callbacks-example.c -lhttrack2
With MS-Visual C++:
cl -LD -nologo -W3 -Zi -Zp4 -DWIN32 -Fe"mycallback.dll" callbacks-example.c libhttrack.lib
Note: the httrack library linker option is only necessary when using libhttrack's functions inside the callback
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
/* Standard httrack module includes */
#include "httrack-library.h"
#include "htsopt.h"
#include "htsdefines.h"
/* Function definitions */
static int mysavename(t_hts_callbackarg * carg, httrackp * opt,
const char *adr_complete, const char *fil_complete,
const char *referer_adr, const char *referer_fil,
char *save);
/* external functions */
EXTERNAL_FUNCTION int hts_plug(httrackp * opt, const char *argv);
/*
module entry point
*/
EXTERNAL_FUNCTION int hts_plug(httrackp * opt, const char *argv) {
const char *arg = strchr(argv, ',');
if (arg != NULL)
arg++;
CHAIN_FUNCTION(opt, savename, mysavename, NULL);
return 1; /* success */
}
/*
Replaces all "offending" IIS extensions (exe, dll..) with "nice" ones
*/
static int mysavename(t_hts_callbackarg * carg, httrackp * opt,
const char *adr_complete, const char *fil_complete,
const char *referer_adr, const char *referer_fil,
char *save) {
static const char *iisBogus[] = { ".com", ".exe", ".dll", ".sh", NULL };
static const char *iisBogusReplace[] = { ".c0m", ".ex3", ".dl1", ".5h", NULL }; /* MUST be the same sizes */
char *a;
/* Call parent functions if multiple callbacks are chained. */
if (CALLBACKARG_PREV_FUN(carg, savename) != NULL) {
if (!CALLBACKARG_PREV_FUN(carg, savename)
(CALLBACKARG_PREV_CARG(carg), opt, adr_complete, fil_complete,
referer_adr, referer_fil, save)) {
return 0; /* Abort */
}
}
/* Process */
for(a = save; *a != '\0'; a++) {
int i;
for(i = 0; iisBogus[i] != NULL; i++) {
int j;
for(j = 0; iisBogus[i][j] == a[j] && iisBogus[i][j] != '\0'; j++) ;
if (iisBogus[i][j] == '\0'
&& (a[j] == '\0' || a[j] == '/' || a[j] == '\\')) {
strncpy(a, iisBogusReplace[i], strlen(iisBogusReplace[i]));
break;
}
}
}
return 1; /* success */
}
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