/*
   tclfiles.c -- handles:
   Tcl stubs for file system commands
   moved here to support modules

   dprintf'ized, 1aug96
 */
/*
   This file is part of the eggdrop source code
   copyright (c) 1997 Robey Pointer
   and is distributed according to the GNU general public license.
   For full details, read the top of 'main.c' or the file called
   COPYING that was distributed with this code.
 */

static int tcl_getdesc STDVAR
{
   char s[186];
   BADARGS(3, 3, " dir file");
   filedb_getdesc(argv[1], argv[2], s);
   Tcl_AppendResult(irp, s, NULL);
   return TCL_OK;
}

static int tcl_setdesc STDVAR
{
   BADARGS(4, 4, " dir file desc");
   filedb_setdesc(argv[1], argv[2], argv[3]);
   return TCL_OK;
}

static int tcl_getowner STDVAR
{
   char s[HANDLEN+1];
   BADARGS(3, 3, " dir file");
   filedb_getowner(argv[1], argv[2], s);
   Tcl_AppendResult(irp, s, NULL);
   return TCL_OK;
}

static int tcl_setowner STDVAR
{
   BADARGS(4, 4, " dir file owner");
   filedb_setowner(argv[1], argv[2], argv[3]);
   return TCL_OK;
}

static int tcl_getgots STDVAR
{
   int i;
   char s[10];
   
   BADARGS(3, 3, " dir file");
   i = filedb_getgots(argv[1], argv[2]);
   sprintf(s, "%d", i);
   Tcl_AppendResult(irp, s, NULL);
   return TCL_OK;
}

static int tcl_setlink STDVAR
{
   BADARGS(4, 4, " dir file link");
   filedb_setlink(argv[1], argv[2], argv[3]);
   return TCL_OK;
}

static int tcl_getlink STDVAR
{
   char s[121];
    BADARGS(3, 3, " dir file");
    filedb_getlink(argv[1], argv[2], s);
    Tcl_AppendResult(irp, s, NULL);
    return TCL_OK;
}

static int tcl_setpwd STDVAR
{
   int i, idx;

   BADARGS(3, 3, " idx dir");
   i = atoi(argv[1]);
   idx = findanyidx(i);
   if ((idx < 0) || (dcc[idx].type != &DCC_FILES)) {
      Tcl_AppendResult(irp, "invalid idx", NULL);
      return TCL_ERROR;
   }
   files_setpwd(idx, argv[2]);
   return TCL_OK;
}

static int tcl_getpwd STDVAR
{
   int i, idx;

   BADARGS(2, 2, " idx");
   i = atoi(argv[1]);
   idx = findanyidx(i);
   if ((idx < 0) || (dcc[idx].type != &DCC_FILES)) {
      Tcl_AppendResult(irp, "invalid idx", NULL);
      return TCL_ERROR;
   }
   Tcl_AppendResult(irp, dcc[idx].u.file->dir, NULL);
   return TCL_OK;
}

static int tcl_getfiles STDVAR
{
   BADARGS(2, 2, " dir");
   filedb_getfiles(irp, argv[1]);
   return TCL_OK;
}

static int tcl_getdirs STDVAR
{
   BADARGS(2, 2, " dir");
   filedb_getdirs(irp, argv[1]);
   return TCL_OK;
}

static int tcl_hide STDVAR
{
   BADARGS(3, 3, " dir file");
   filedb_change(argv[1], argv[2], FILEDB_HIDE);
   return TCL_OK;
}

static int tcl_unhide STDVAR
{
   BADARGS(3, 3, " dir file");
   filedb_change(argv[1], argv[2], FILEDB_UNHIDE);
   return TCL_OK;
}

static int tcl_share STDVAR
{
   BADARGS(3, 3, " dir file");
   filedb_change(argv[1], argv[2], FILEDB_SHARE);
   return TCL_OK;
}

static int tcl_unshare STDVAR
{
   BADARGS(3, 3, " dir file");
   filedb_change(argv[1], argv[2], FILEDB_UNSHARE);
   return TCL_OK;
}

static int tcl_setflags STDVAR
{
   FILE *f;
   filedb fdb;
   long where = 0;
   char s[512], *p, *d;
   
   BADARGS(2, 3, " dir ?flags ?channel??");
   strcpy(s, argv[1]);
   if (s[strlen(s) - 1] == '/')
       s[strlen(s) - 1] = 0;
    p = strrchr(s, '/');
   if (p == NULL) {
      p = s;
      d = "";
   } else {
      *p = 0;
      p++;
      d = s;
   }
   f = filedb_open(d,0);
   if (!findmatch(f, p, &where, &fdb))
      Tcl_AppendResult(irp, "-1", NULL);	/* no such dir */
   else if (!(fdb.stat & FILE_DIR))
      Tcl_AppendResult(irp, "-2", NULL);	/* not a dir */
   else {
      if (argc >= 3) {
	 struct flag_record fr = { FR_GLOBAL|FR_CHAN, 0, 0, 0, 0, 0 };
	 
	 break_down_flags(argv[2],&fr,NULL);
	 build_flags(s,&fr,NULL);
	 strncpy(fdb.flags_req, s, 21);
	 fdb.flags_req[21] = 0;
      } else
	fdb.flags_req[0] = 0;
      if (argc == 4) {
	 strncpy(fdb.chname,argv[3],80);
	 fdb.chname[80] = 0;
      } 
   }
   fseek(f, where, SEEK_SET);
   fwrite(&fdb, sizeof(filedb), 1, f);
   filedb_close(f);
   Tcl_AppendResult(irp, "0", NULL);
   return TCL_OK;
}

static int tcl_getflags STDVAR
{
   FILE *f;
   filedb fdb;
   long where = 0;
   char s[512], *p, *d;
   
   BADARGS(2, 2, " dir");
   strcpy(s, argv[1]);
   if (s[strlen(s) - 1] == '/')
       s[strlen(s) - 1] = 0;
    p = strrchr(s, '/');
   if (p == NULL) {
      p = s;
      d = "";
   } else {
      *p = 0;
      p++;
      d = s;
   }
   f = filedb_open(d, 0);
   if (!findmatch(f, p, &where, &fdb))
      Tcl_AppendResult(irp, "", NULL);	/* no such dir */
   else if (!(fdb.stat & FILE_DIR))
      Tcl_AppendResult(irp, "", NULL);	/* not a dir */
   else {
      strcpy(s, fdb.flags_req);
      if (s[0] == '-')
	 s[0] = 0;
      Tcl_AppendElement(irp, s);
      Tcl_AppendElement(irp, fdb.chname);
   }
   filedb_close(f);
   return TCL_OK;
}

static int tcl_mkdir STDVAR
{
   char s[512], t[512], *d, *p;
   FILE *f;
   filedb fdb;
   long where = 0;
   struct flag_record fr = { FR_GLOBAL|FR_CHAN, 0, 0, 0, 0, 0 };
   
   BADARGS(2, 3, " dir ?required-flags ?channel??");
   strcpy(s, argv[1]);
   if (s[strlen(s) - 1] == '/')
       s[strlen(s) - 1] = 0;
    p = strrchr(s, '/');
   if (p == NULL) {
      p = s;
      d = "";
   } else {
      *p = 0;
      p++;
      d = s;
   }
   f = filedb_open(d, 0);
   if (!findmatch(f, p, &where, &fdb)) {
      sprintf(t, "%s%s/%s", dccdir, d, p);
      if (mkdir(t, 0755) != 0) {
	 Tcl_AppendResult(irp, "1", NULL);
	 filedb_close(f);
	 return TCL_OK;
      }
      fdb.version = FILEVERSION;
      fdb.stat = FILE_DIR;
      fdb.desc[0] = 0;
      fdb.uploader[0] = 0;
      strcpy(fdb.filename, argv[1]);
      fdb.flags_req[0] = 0;
      fdb.uploaded = now;
      fdb.size = 0;
      fdb.gots = 0;
      fdb.sharelink[0] = 0;
      where = findempty(f);
   } else if (!(fdb.stat & FILE_DIR)) {
      Tcl_AppendResult(irp, "2", NULL);
      filedb_close(f);
      return TCL_OK;
   }
   if (argc >= 3) {
      break_down_flags(argv[2],&fr,NULL);
      build_flags(s,&fr,NULL);
      strncpy(fdb.flags_req, s, 21);
      fdb.flags_req[21] = 0;
   } else {
      fdb.flags_req[0] = 0;
   }
   if (argc == 4) {
      strncpy(fdb.chname,argv[3],80);
      fdb.chname[80] = 0;
   } else
     fdb.chname[0] = 0;
   Tcl_AppendResult(irp, "0", NULL);
   fseek(f, where, SEEK_SET);
   fwrite(&fdb, sizeof(filedb), 1, f);
   filedb_close(f);
   return TCL_OK;
}

static int tcl_rmdir STDVAR
{
   FILE *f;
   filedb fdb;
   long where = 0;
   
   char s[256], t[512], *d, *p;
    BADARGS(2, 2, " dir");
   if (strlen(argv[1]) > 80)
       argv[1][80] = 0;
    strcpy(s, argv[1]);
   if (s[strlen(s) - 1] == '/')
       s[strlen(s) - 1] = 0;
    p = strrchr(s, '/');
   if (p == NULL) {
      p = s;
      d = "";
   } else {
      *p = 0;
      p++;
      d = s;
   }
   f = filedb_open(d,0);
   if  (!findmatch(f, p, &where, &fdb)) {
      Tcl_AppendResult(irp, "1", NULL);
      filedb_close(f);
      return TCL_OK;
   }
   if (!(fdb.stat & FILE_DIR)) {
      Tcl_AppendResult(irp, "1", NULL);
      filedb_close(f);
      return TCL_OK;
   }
   /* erase '.filedb' and '.files' if they exist */
   sprintf(t, "%s%s/%s/.filedb", dccdir, d, p);
   unlink(t);
   sprintf(t, "%s%s/%s/.files", dccdir, d, p);
   unlink(t);
   sprintf(t, "%s%s/%s", dccdir, d, p);
   if (rmdir(t) == 0) {
      fdb.stat |= FILE_UNUSED;
      fseek(f, where, SEEK_SET);
      fwrite(&fdb, sizeof(filedb), 1, f);
      filedb_close(f);
      Tcl_AppendResult(irp, "0", NULL);
      return TCL_OK;
   }
   Tcl_AppendResult(irp, "1", NULL);
   filedb_close(f);
   return TCL_OK;
}

static int tcl_mv_cp (Tcl_Interp * irp, int argc, char ** argv, int copy)
{
   char *p, fn[161], oldpath[161], s[161], s1[161], newfn[161], newpath[161];
   int ok, only_first, skip_this, ret, ret2;
   FILE *f, *g;
   filedb fdb, x;
   long where, gwhere, wherez;

   BADARGS(3, 3, " oldfilepath newfilepath");
   context;
   strcpy(fn, argv[1]);
   p = strrchr(fn, '/');
   if (p != NULL) {
      *p = 0;
      strncpy(s, fn, 160);
      s[160] = 0;
      strcpy(fn, p + 1);
      if (!resolve_dir("/", s, oldpath, -1)) {
	 /* tcl can do * anything */
	 Tcl_AppendResult(irp, "-1", NULL);	/* invalid source */
	 return TCL_OK;
      }
   } else
      strcpy(oldpath, "/");
   strncpy(s, argv[2], 160);
   s[160] = 0;
   if (!resolve_dir("/", s, newpath, -1)) {
      /* destination is not just a directory */
      p = strrchr(s, '/');
      if (p == NULL) {
	 strcpy(newfn, s);
	 s[0] = 0;
      } else {
	 *p = 0;
	 strcpy(newfn, p + 1);
      }
      if (!resolve_dir("/", s, newpath, -1)) {
	 Tcl_AppendResult(irp, "-2", NULL);	/* invalid desto */
	 return TCL_OK;
      }
   } else
      newfn[0] = 0;
   /* stupidness checks */
   if ((strcmp(oldpath, newpath) == 0) &&
       ((!newfn[0]) || (strcmp(newfn, fn) == 0))) {
      Tcl_AppendResult(irp, "-3", NULL);	/* stoopid copy to self */
      return TCL_OK;
   }
   /* be aware of 'cp * this.file' possibility: ONLY COPY FIRST ONE */
   if (((strchr(fn, '?') != NULL) || (strchr(fn, '*') != NULL)) && (newfn[0]))
      only_first = 1;
   else
      only_first = 0;
   f = filedb_open(oldpath, 0);
   if (!strcmp(oldpath, newpath))
      g = NULL;
   else
      g = filedb_open(newpath, 0);
   where = 0L;
   ok = 0;
   ret = findmatch(f, fn, &where, &fdb);
   if (!ret) {
      Tcl_AppendResult(irp, "-4", NULL);	/* nomatch */
      filedb_close(f);
      if (g != NULL)
	 filedb_close(g);
      return TCL_OK;
   }
   while (ret) {
      skip_this = 0;
      if (!(fdb.stat & (FILE_HIDDEN | FILE_DIR))) {
	 sprintf(s, "%s%s%s%s", dccdir, oldpath,
		 oldpath[0] ? "/" : "", fdb.filename);
	 sprintf(s1, "%s%s%s%s", dccdir, newpath,
		 newpath[0] ? "/" : "", newfn[0] ? newfn : fdb.filename);
	 if (strcmp(s, s1) == 0) {
	    Tcl_AppendResult(irp, "-3", NULL);	/* stoopid copy to self */
	    skip_this = 1;
	 }
	 /* check for existence of file with same name in new dir */
	 wherez = 0;
	 if (!g)
	    ret2 = findmatch(f, newfn[0] ? newfn : fdb.filename, &wherez, &x);
	 else
	    ret2 = findmatch(g, newfn[0] ? newfn : fdb.filename, &wherez, &x);
	 if (ret2) {
	    /* it's ok if the entry in the new dir is a normal file (we'll */
	    /* just scrap the old entry and overwrite the file) -- but if */
	    /* it's a directory, this file has to be skipped */
	    if (x.stat & FILE_DIR) {
	       /* skip */
	       skip_this = 1;
	    } else {
	       x.stat |= FILE_UNUSED;
	       if (!g) {
		  fseek(f, wherez, SEEK_SET);
		  fwrite(&x, sizeof(filedb), 1, f);
	       } else {
		  fseek(g, wherez, SEEK_SET);
		  fwrite(&x, sizeof(filedb), 1, g);
	       }
	    }
	 }
	 if (!skip_this) {
	    if ((fdb.sharelink[0]) || (copyfile(s, s1) == 0)) {
	       /* raw file moved okay: create new entry for it */
	       ok++;
	       if (!g)
		  gwhere = findempty(f);
	       else
		  gwhere = findempty(g);
	       x.version = FILEVERSION;
	       x.stat = fdb.stat;
	       strcpy(x.flags_req, fdb.flags_req);
	       strcpy(x.chname, fdb.chname);
	       strcpy(x.filename, fdb.filename);
	       strcpy(x.desc, fdb.desc);
	       if (newfn[0])
		  strcpy(x.filename, newfn);
	       strcpy(x.uploader, fdb.uploader);
	       x.uploaded = fdb.uploaded;
	       x.size = fdb.size;
	       x.gots = fdb.gots;
	       strcpy(x.sharelink, fdb.sharelink);
	       if (g == NULL) {
		  fseek(f, gwhere, SEEK_SET);
		  fwrite(&x, sizeof(filedb), 1, f);
	       } else {
		  fseek(g, gwhere, SEEK_SET);
		  fwrite(&x, sizeof(filedb), 1, g);
	       }
	       if (!copy) {
		  unlink(s);
		  fdb.stat |= FILE_UNUSED;
		  fseek(f, where, SEEK_SET);
		  fwrite(&fdb, sizeof(filedb), 1, f);
	       }
	    }
	 }
      }
      where += sizeof(filedb);
      ret = findmatch(f, fn, &where, &fdb);
      if ((ok) && (only_first))
	 ret = 0;
   }
   if (!ok)
      Tcl_AppendResult(irp, "-4", NULL);	/* nomatch */
   else {
      char x[30];
      sprintf(x, "%d", ok);
      Tcl_AppendResult(irp, x, NULL);
   }
   filedb_close(f);
   if (g)
      filedb_close(g);
   return TCL_OK;
}

static int tcl_mv STDVAR
{
   return tcl_mv_cp(irp, argc, argv, 0);
}

static int tcl_cp STDVAR
{
   return tcl_mv_cp(irp, argc, argv, 1);
}

static int tcl_filesend STDVAR
{
   int i, idx;
   char s[HANDLEN+1];

   BADARGS(3, 4, " idx filename ?nick?");
   i = atoi(argv[1]);
   idx = findanyidx(i);
   if ((idx < 0) || (dcc[idx].type != &DCC_FILES)) {
      Tcl_AppendResult(irp, "invalid idx", NULL);
      return TCL_ERROR;
   }
   if (argc == 4)
      i = files_get(idx, argv[2], argv[3]);
   else
      i = files_get(idx, argv[2], "");
   sprintf(s, "%d", i);
   Tcl_AppendResult(irp, s, NULL);
   return TCL_OK;
}

static int tcl_getuploads STDVAR
{
   struct userrec *u;
   struct filesys_stats * fs;
   char s[81];
   
   BADARGS(2, 2, " handle");
   u = get_user_by_handle(userlist, argv[1]);
   if (u) {
      fs = get_user(&USERENTRY_FSTAT,u);
      if (fs) {
	 sprintf(s, "%u %u", fs->uploads, fs->upload_ks);
	 Tcl_AppendResult(irp, s, NULL);
      }
   }
   return TCL_OK;
}

static int tcl_getdnloads STDVAR
{
   struct userrec *u;
   struct filesys_stats * fs;
   char s[81];
   
    BADARGS(2, 2, " handle");
    u = get_user_by_handle(userlist, argv[1]);
   if (u) {
      fs = get_user(&USERENTRY_FSTAT,u);
      if (fs) {
	 sprintf(s, "%u %u", fs->dnloads, fs->dnload_ks);
	 Tcl_AppendResult(irp, s, NULL);
      }
   }
   return TCL_OK;
}

static int tcl_setuploads STDVAR
{
   BADARGS(4, 4, " handle files k");
   set_handle_uploads(userlist, argv[1], atoi(argv[2]), atoi(argv[3]));
   return TCL_OK;
}

static int tcl_setdnloads STDVAR
{
   BADARGS(4, 4, " handle files k");
   set_handle_dnloads(userlist, argv[1], atoi(argv[2]), atoi(argv[3]));
   return TCL_OK;
}

static tcl_cmds mytcls[] =
{
   {"getdesc", tcl_getdesc},
   {"getowner", tcl_getowner},
   {"setdesc", tcl_setdesc},
   {"setowner", tcl_setowner},
   {"getgots", tcl_getgots},
   {"getpwd", tcl_getpwd},
   {"setpwd", tcl_setpwd},
   {"getlink", tcl_getlink},
   {"setlink", tcl_setlink},
   {"getfiles", tcl_getfiles},
   {"getdirs", tcl_getdirs},
   {"hide", tcl_hide},
   {"unhide", tcl_unhide},
   {"share", tcl_share},
   {"unshare", tcl_unshare},
   {"filesend", tcl_filesend},
   {"getuploads", tcl_getuploads},
   {"setuploads", tcl_setuploads},
   {"getdnloads", tcl_getdnloads},
   {"setdnloads", tcl_setdnloads},
   {"mkdir", tcl_mkdir},
   {"rmdir", tcl_rmdir},
   {"cp", tcl_cp},
   {"mv", tcl_mv},
   {"getflags", tcl_getflags},
   {"setflags", tcl_setflags},
   {0, 0}
};