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  1. /*
  2.     This file is part of "Filter Foundry", a filter plugin for Adobe Photoshop
  3.     Copyright (C) 2003-2009 Toby Thain, toby@telegraphics.com.au
  4.     Copyright (C) 2018-2021 Daniel Marschall, ViaThinkSoft
  5.  
  6.     This program is free software; you can redistribute it and/or modify
  7.     it under the terms of the GNU General Public License as published by
  8.     the Free Software Foundation; either version 2 of the License, or
  9.     (at your option) any later version.
  10.  
  11.     This program is distributed in the hope that it will be useful,
  12.     but WITHOUT ANY WARRANTY; without even the implied warranty of
  13.     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14.     GNU General Public License for more details.
  15.  
  16.     You should have received a copy of the GNU General Public License
  17.     along with this program; if not, write to the Free Software
  18.     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19. */
  20.  
  21. #include "ff.h"
  22.  
  23. #include <Resources.h>
  24.  
  25. #include "file_compat.h"
  26.  
  27. Boolean readPARMresource(HMODULE hm,char **reason,int readobfusc){
  28.         Boolean res = false;
  29.         Handle h;
  30.  
  31.         if( !(h = Get1Resource(PARM_TYPE,PARM_ID))
  32.           && readobfusc
  33.           && (h = Get1Resource('DATA',OBFUSCDATA_ID)) ){
  34.                 HLock(h);
  35.                 if(GetHandleSize(h) == sizeof(PARM_T)) {
  36.                         deobfusc((PARM_T*)*h);
  37.                         gdata->obfusc = true;
  38.                 } else {
  39.                         // Obfuscated PARM has wrong size. Should not happen
  40.                         gdata->obfusc = false;
  41.                         ReleaseResource(h);
  42.                         return false;
  43.                 }
  44.         }
  45.         if(h){
  46.                 HLock(h);
  47.                 res = readPARM(*h, &gdata->parm, reason, 0 /*Mac format resource*/);
  48.                 ReleaseResource(h);
  49.                 gdata->obfusc = false;
  50.         }
  51.         if (!res) {
  52.                 gdata->obfusc = false;
  53.         }
  54.         return res;
  55. }
  56.  
  57. static Boolean readmacplugin(StandardFileReply *sfr,char **reason){
  58.         Boolean res = false;
  59.         short rrn = FSpOpenResFile(&sfr->sfFile,fsRdPerm);
  60.  
  61.         if(rrn != -1){
  62.                 if(readPARMresource(NULL,reason,0))
  63.                         res = true;
  64.                 CloseResFile(rrn);
  65.         }else
  66.                 *reason = "Could not open file.";
  67.         return res;
  68. }
  69.  
  70. Boolean loadfile(StandardFileReply *sfr,char **reason){
  71.         Boolean readok = false;
  72.         FInfo fndrInfo;
  73.  
  74.         if(FSpGetFInfo(&sfr->sfFile,&fndrInfo) == noErr){
  75.                 // first try to read text parameters (AFS, TXT, PFF)
  76.                 if( (readok = readfile_afs_pff(sfr,reason)) ) {
  77.                         gdata->parmloaded = false;
  78.                         gdata->obfusc = false;
  79.                
  80.                 } // then try "Filters Unlimited" file (FFX)
  81.                 else if( (readok = readfile_ffx(sfr,reason)) ) {
  82.                         gdata->parmloaded = true;
  83.                         gdata->obfusc = false;
  84.                
  85.                 } // then try plugin formats (Mac first, then Windows .8bf or .prm DLL)
  86.                 else if( (readok = readmacplugin(sfr,reason) || readfile_8bf(sfr,reason)) ){
  87.                         if ((gdata->parm.cbSize != PARM_SIZE) && (gdata->parm.cbSize != PARM_SIZE_PREMIERE) && (gdata->parm.cbSize != PARM_SIG_MAC)) {
  88.                                 *reason = "Incompatible obfuscation.";
  89.                                 //gdata->parmloaded = false;
  90.                                 return false; // Stop! We know the issue now.
  91.                         }else if(gdata->parm.iProtected){
  92.                                 *reason = "The filter is protected.";
  93.                                 //gdata->parmloaded = false;
  94.                                 return false;
  95.                         }else
  96.                                 gdata->parmloaded = true;
  97.                 }else
  98.                         *reason = "It is not a text parameter (AFS) file, nor a standalone Mac/PC filter made by Filter Factory/Filter Foundry.";
  99.         }
  100.  
  101.         return readok;
  102. }
  103.