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Rev | Author | Line No. | Line |
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256 | daniel-mar | 1 | /* |
408 | daniel-mar | 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 |
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4 | Copyright (C) 2018-2021 Daniel Marschall, ViaThinkSoft |
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256 | daniel-mar | 5 | |
408 | daniel-mar | 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 |
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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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256 | daniel-mar | 10 | |
408 | daniel-mar | 11 | This program is distributed in the hope that it will be useful, |
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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256 | daniel-mar | 15 | |
408 | daniel-mar | 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 |
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18 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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256 | daniel-mar | 19 | */ |
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 | |||
408 | daniel-mar | 29 | static BOOL CALLBACK enumnames(HMODULE hModule, LPCTSTR lpszType, |
30 | LPTSTR lpszName, LONG_PTR lParam) |
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256 | daniel-mar | 31 | { |
433 | daniel-mar | 32 | UNREFERENCED_PARAMETER(lParam); // TODO: Pass parm_id as pointer in lParam |
33 | UNREFERENCED_PARAMETER(hModule); |
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34 | UNREFERENCED_PARAMETER(lpszType); |
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35 | |||
345 | daniel-mar | 36 | if (IS_INTRESOURCE(lpszName)) { |
256 | daniel-mar | 37 | parm_id = (UINT16)((intptr_t)lpszName & 0xFFFF); |
345 | daniel-mar | 38 | return false; // we only want the first one |
39 | } |
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40 | else return true; |
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256 | daniel-mar | 41 | } |
42 | |||
408 | daniel-mar | 43 | Boolean readPARMresource(HMODULE hm, char** reason, int readobfusc) { |
256 | daniel-mar | 44 | HRSRC resinfo; |
45 | HANDLE h; |
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46 | Ptr pparm; |
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47 | |||
376 | daniel-mar | 48 | parm_id = 1; |
408 | daniel-mar | 49 | EnumResourceNames(hm, PARM_TYPE, enumnames, 0); // callback function enumnames() will find the actual found parm_id |
256 | daniel-mar | 50 | |
51 | // load first PARM resource |
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408 | daniel-mar | 52 | if ((resinfo = FindResource(hm, MAKEINTRESOURCE(parm_id), PARM_TYPE))) { |
256 | daniel-mar | 53 | if ((h = LoadResource(hm, resinfo)) && (pparm = (Ptr)LockResource(h))) { |
408 | daniel-mar | 54 | int res = readPARM(&gdata->parm, pparm); |
256 | daniel-mar | 55 | gdata->obfusc = false; |
408 | daniel-mar | 56 | return res; |
256 | daniel-mar | 57 | } |
408 | daniel-mar | 58 | } |
59 | else if (readobfusc && |
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60 | ((resinfo = FindResource(hm, OBFUSCDATA_ID_NEW, OBFUSCDATA_TYPE_NEW)) || |
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61 | (resinfo = FindResource(hm, OBFUSCDATA_ID_OLD, OBFUSCDATA_TYPE_OLD)))) { |
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62 | if ((h = LoadResource(hm, resinfo)) && (pparm = (Ptr)LockResource(h))) { |
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256 | daniel-mar | 63 | // Fix by DM, 18 Dec 2018: |
64 | // We need to copy the information, because the resource data is read-only |
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408 | daniel-mar | 65 | DWORD resSize = SizeofResource(hm, resinfo); |
271 | daniel-mar | 66 | if (resSize == sizeof(PARM_T)) { |
408 | daniel-mar | 67 | int res; |
271 | daniel-mar | 68 | PARM_T* copy = (PARM_T*)malloc(resSize); |
69 | if (!copy) return false; |
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70 | memcpy(copy, pparm, resSize); |
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71 | deobfusc(copy); |
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408 | daniel-mar | 72 | res = readPARM(&gdata->parm, (Ptr)copy); |
73 | if (!res) { |
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74 | *reason = _strdup("Incompatible obfuscation."); |
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75 | } |
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76 | free(copy); |
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271 | daniel-mar | 77 | gdata->obfusc = true; |
408 | daniel-mar | 78 | return res; |
79 | } |
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80 | else { |
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309 | daniel-mar | 81 | // Obfuscationed PARM has wrong size. It is probably a file with different RCDATA |
271 | daniel-mar | 82 | gdata->obfusc = false; |
83 | return false; |
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84 | } |
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256 | daniel-mar | 85 | } |
86 | } |
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408 | daniel-mar | 87 | return false; |
256 | daniel-mar | 88 | } |
89 | |||
408 | daniel-mar | 90 | Boolean loadfile(StandardFileReply* sfr, char** reason) { |
256 | daniel-mar | 91 | HMODULE hm; |
92 | |||
408 | daniel-mar | 93 | // The different read-functions will return true if the resource was successfully loaded, |
94 | // or false otherwise. If *reason is set, then the answer is clearly "No". If the result |
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95 | // is just false, it means that the program should continue with the next read-function. |
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96 | *reason = NULL; |
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97 | |||
256 | daniel-mar | 98 | // First, try to read the file as AFS/PFF/TXT file |
408 | daniel-mar | 99 | if (*reason == NULL) { |
100 | if (readfile_afs_pff(sfr, reason)) { |
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101 | gdata->obfusc = false; |
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102 | gdata->parmloaded = false; |
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103 | return true; |
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104 | } |
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256 | daniel-mar | 105 | } |
106 | |||
107 | // If that didn't work, try to load as Windows image file (Resource API for 8BF/PRM files) |
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408 | daniel-mar | 108 | if (*reason == NULL) { |
109 | char name[MAX_PATH + 1]; |
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110 | if (hm = LoadLibraryEx(myp2cstrcpy(name, sfr->sfFile.name), NULL, LOAD_LIBRARY_AS_DATAFILE)) { |
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111 | if (readPARMresource(hm, reason, READ_OBFUSC)) { |
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112 | if (gdata->parm.iProtected) { |
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256 | daniel-mar | 113 | *reason = _strdup("The filter is protected."); |
292 | daniel-mar | 114 | //gdata->parmloaded = false; |
256 | daniel-mar | 115 | } |
408 | daniel-mar | 116 | else { |
117 | gdata->parmloaded = true; |
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118 | FreeLibrary(hm); |
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119 | return true; |
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120 | } |
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256 | daniel-mar | 121 | } |
122 | FreeLibrary(hm); |
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123 | } |
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124 | } |
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125 | |||
366 | daniel-mar | 126 | // Is it a "Filters Unlimited" filter? (Only partially compatible with Filter Factory!!!) |
408 | daniel-mar | 127 | if (*reason == NULL) { |
366 | daniel-mar | 128 | if (readfile_ffx(sfr, reason)) { |
408 | daniel-mar | 129 | gdata->parmloaded = true; |
130 | return true; |
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366 | daniel-mar | 131 | } |
132 | } |
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133 | |||
385 | daniel-mar | 134 | // Is it a "Filters Unlimited" filter? (Only partially compatible with Filter Factory!!!) |
408 | daniel-mar | 135 | if (*reason == NULL) { |
385 | daniel-mar | 136 | if (readfile_picotxt(sfr, reason)) { |
408 | daniel-mar | 137 | gdata->parmloaded = true; |
138 | return true; |
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385 | daniel-mar | 139 | } |
140 | } |
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141 | |||
408 | daniel-mar | 142 | // If nothing worked, we will try to find a PARM resource (MacOS plugin, or 64 bit 8BF on Win32 OS) |
143 | // Note that we cannot detect obfuscated filters here! |
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144 | if (*reason == NULL) { |
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373 | daniel-mar | 145 | if (readfile_8bf(sfr, reason)) { |
256 | daniel-mar | 146 | if (gdata->parm.iProtected) { |
408 | daniel-mar | 147 | // This is for purely protected filters before the time when obfuscation and protection was merged |
256 | daniel-mar | 148 | *reason = _strdup("The filter is protected."); |
149 | } |
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150 | else { |
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408 | daniel-mar | 151 | gdata->parmloaded = true; |
152 | return true; |
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256 | daniel-mar | 153 | } |
154 | } |
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155 | } |
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156 | |||
408 | daniel-mar | 157 | // We didn't had success. If we have a clear reason, return false and the reason. |
158 | // If we don't have a clear reason, set a generic reason and return false. |
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159 | if (*reason == NULL) { |
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160 | *reason = _strdup("It is not a text parameter file, nor a standalone Mac/PC filter created by Filter Factory/Filter Foundry."); |
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256 | daniel-mar | 161 | } |
408 | daniel-mar | 162 | return false; |
422 | daniel-mar | 163 | } |