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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 256 | daniel-mar | 1 | /* |
| 2 | This file is part of "Filter Foundry", a filter plugin for Adobe Photoshop |
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| 3 | Copyright (C) 2003-2009 Toby Thain, toby@telegraphics.com.au |
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| 4 | Copyright (C) 2018-2021 Daniel Marschall, ViaThinkSoft |
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| 5 | |||
| 6 | This program is free software; you can redistribute it and/or modify |
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| 7 | it under the terms of the GNU General Public License as published by |
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| 8 | the Free Software Foundation; either version 2 of the License, or |
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| 9 | (at your option) any later version. |
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| 10 | |||
| 11 | This program is distributed in the hope that it will be useful, |
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| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 14 | GNU General Public License for more details. |
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| 15 | |||
| 16 | You should have received a copy of the GNU General Public License |
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| 17 | along with this program; if not, write to the Free Software |
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| 18 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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| 19 | */ |
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| 20 | |||
| 21 | #include "ff.h" |
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| 22 | |||
| 23 | #include "file_compat.h" |
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| 24 | |||
| 25 | #include <string.h> |
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| 26 | |||
| 27 | static UINT16 parm_id; |
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| 28 | |||
| 29 | static BOOL CALLBACK enumnames(HMODULE hModule,LPCTSTR lpszType, |
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| 30 | LPTSTR lpszName,LONG_PTR lParam) |
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| 31 | { |
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| 32 | if(IS_INTRESOURCE(lpszName)) |
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| 33 | parm_id = (UINT16)((intptr_t)lpszName & 0xFFFF); |
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| 34 | return false; // we only want the first one |
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| 35 | } |
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| 36 | |||
| 37 | Boolean readPARMresource(HMODULE hm,char **reason,int readobfusc){ |
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| 38 | HRSRC resinfo; |
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| 39 | HANDLE h; |
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| 40 | Ptr pparm; |
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| 41 | int res = false; |
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| 42 | |||
| 43 | parm_id = PARM_ID; |
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| 44 | EnumResourceNames(hm,"PARM",enumnames,0); |
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| 45 | |||
| 46 | // load first PARM resource |
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| 47 | if( (resinfo = FindResource(hm,MAKEINTRESOURCE(parm_id),"PARM")) ){ |
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| 48 | if ((h = LoadResource(hm, resinfo)) && (pparm = (Ptr)LockResource(h))) { |
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| 49 | res = readPARM(pparm, &gdata->parm, reason, 1 /*Windows format resource*/); |
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| 50 | gdata->obfusc = false; |
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| 51 | } |
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| 52 | }else if( readobfusc && (resinfo = FindResource(hm,MAKEINTRESOURCE(OBFUSCDATA_ID),RT_RCDATA)) ){ |
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| 53 | if( (h = LoadResource(hm,resinfo)) && (pparm = (Ptr)LockResource(h)) ){ |
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| 54 | // Fix by DM, 18 Dec 2018: |
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| 55 | // We need to copy the information, because the resource data is read-only |
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| 56 | DWORD resSize = SizeofResource(hm,resinfo); |
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| 57 | char* copy = (char*)malloc(resSize); |
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| 58 | if (!copy) return false; |
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| 59 | memcpy(copy, pparm, resSize); |
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| 60 | deobfusc((unsigned char*)copy, resSize,OBFUSC_SEED_POS); |
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| 61 | res = readPARM(copy,&gdata->parm,reason,1); |
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| 62 | gdata->obfusc = true; |
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| 63 | free(copy); |
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| 64 | } |
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| 65 | } |
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| 66 | if (!res) { |
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| 67 | gdata->obfusc = false; |
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| 68 | } |
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| 69 | return res; |
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| 70 | } |
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| 71 | |||
| 72 | Boolean loadfile(StandardFileReply *sfr,char **reason){ |
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| 73 | Boolean readok = false; |
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| 74 | HMODULE hm; |
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| 75 | |||
| 76 | // First, try to read the file as AFS/PFF/TXT file |
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| 77 | if( (readok = readfile(sfr,reason)) ){ |
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| 78 | gdata->obfusc = false; |
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| 79 | gdata->parmloaded = false; |
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| 80 | } |
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| 81 | |||
| 82 | // If that didn't work, try to load as Windows image file (Resource API for 8BF/PRM files) |
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| 83 | if (!readok) { |
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| 84 | char name[MAX_PATH+1]; |
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| 85 | if (hm = LoadLibraryEx(myp2cstrcpy(name,sfr->sfFile.name),NULL,LOAD_LIBRARY_AS_DATAFILE)) { |
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| 86 | if (readPARMresource(hm,reason,READ_OBFUSC)) { |
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| 87 | if ((gdata->parm.cbSize != PARM_SIZE) && (gdata->parm.cbSize != PARM_SIZE_PREMIERE) && (gdata->parm.cbSize != PARM_SIG_MAC)) { |
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| 88 | *reason = _strdup("Incompatible obfuscation."); |
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| 89 | return false; // Stop! We know the issue now. |
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| 90 | } else if (gdata->parm.iProtected) { |
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| 91 | *reason = _strdup("The filter is protected."); |
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| 92 | return false; // Stop! We know the issue now. |
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| 93 | } else { |
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| 94 | readok = gdata->parmloaded = true; |
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| 95 | } |
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| 96 | } |
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| 97 | FreeLibrary(hm); |
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| 98 | } |
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| 99 | } |
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| 100 | |||
| 101 | // If nothing worked, we will try to find a PARM resource (MacOS plugin, or NE executable on Win64) |
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| 102 | if (!readok) { |
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| 103 | if (read8bfplugin(sfr, reason)) { |
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| 104 | if (gdata->parm.iProtected) { |
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| 105 | *reason = _strdup("The filter is protected."); |
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| 106 | return false; // Stop! We know the issue now. |
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| 107 | } |
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| 108 | else { |
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| 109 | readok = gdata->parmloaded = true; |
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| 110 | } |
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| 111 | } |
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| 112 | } |
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| 113 | |||
| 114 | // Check if we had success |
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| 115 | if (!readok) { |
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| 116 | *reason = _strdup("It is not a text parameter (AFS) file, nor a standalone Mac/PC filter made by Filter Factory/Filter Foundry."); |
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| 117 | } |
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| 118 | |||
| 119 | return readok; |
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| 120 | } |