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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 259 | 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 <Resources.h> |
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| 24 | |||
| 25 | #include "file_compat.h" |
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| 26 | |||
| 27 | Boolean readPARMresource(HMODULE hm,char **reason,int readobfusc){ |
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| 28 | Boolean res = false; |
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| 29 | Handle h; |
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| 30 | |||
| 31 | if( !(h = Get1Resource(PARM_TYPE,PARM_ID)) |
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| 32 | && readobfusc |
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| 33 | && (h = Get1Resource('DATA',OBFUSCDATA_ID)) ){ |
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| 34 | HLock(h); |
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| 271 | daniel-mar | 35 | if(GetHandleSize(h) == sizeof(PARM_T)) { |
| 36 | deobfusc((PARM_T*)*h); |
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| 37 | gdata->obfusc = true; |
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| 38 | } else { |
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| 39 | // Obfuscated PARM has wrong size. Should not happen |
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| 40 | gdata->obfusc = false; |
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| 41 | ReleaseResource(h); |
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| 42 | return false; |
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| 43 | } |
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| 259 | daniel-mar | 44 | } |
| 45 | if(h){ |
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| 46 | HLock(h); |
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| 47 | res = readPARM(*h, &gdata->parm, reason, 0 /*Mac format resource*/); |
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| 48 | ReleaseResource(h); |
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| 49 | gdata->obfusc = false; |
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| 50 | } |
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| 51 | if (!res) { |
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| 52 | gdata->obfusc = false; |
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| 53 | } |
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| 54 | return res; |
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| 55 | } |
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| 56 | |||
| 57 | static Boolean readmacplugin(StandardFileReply *sfr,char **reason){ |
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| 58 | Boolean res = false; |
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| 59 | short rrn = FSpOpenResFile(&sfr->sfFile,fsRdPerm); |
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| 60 | |||
| 61 | if(rrn != -1){ |
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| 62 | if(readPARMresource(NULL,reason,0)) |
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| 63 | res = true; |
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| 64 | CloseResFile(rrn); |
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| 65 | }else |
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| 66 | *reason = "Could not open file."; |
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| 67 | return res; |
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| 68 | } |
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| 69 | |||
| 70 | Boolean loadfile(StandardFileReply *sfr,char **reason){ |
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| 71 | Boolean readok = false; |
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| 72 | FInfo fndrInfo; |
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| 73 | |||
| 74 | if(FSpGetFInfo(&sfr->sfFile,&fndrInfo) == noErr){ |
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| 75 | // first try to read text parameters (AFS, TXT, PFF) |
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| 76 | if( (readok = readfile(sfr,reason)) ) { |
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| 77 | gdata->parmloaded = false; |
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| 78 | gdata->obfusc = false; |
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| 79 | // then try plugin formats (Mac first, then Windows .8bf or .prm DLL) |
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| 80 | }else if( (readok = readmacplugin(sfr,reason) || read8bfplugin(sfr,reason)) ){ |
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| 81 | if ((gdata->parm.cbSize != PARM_SIZE) && (gdata->parm.cbSize != PARM_SIZE_PREMIERE) && (gdata->parm.cbSize != PARM_SIG_MAC)) { |
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| 276 | daniel-mar | 82 | if (gdata->parm.unknown2 == 4) { |
| 83 | // Obfuscation V4 is protected, because FF>=1.7.0.5 combines protection and obfuscation |
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| 84 | *reason = "The filter is protected."; |
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| 85 | } |
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| 86 | else { |
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| 87 | *reason = "Incompatible obfuscation."; |
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| 88 | } |
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| 259 | daniel-mar | 89 | return false; // Stop! We know the issue now. |
| 90 | }else if(gdata->parm.iProtected){ |
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| 91 | *reason = "The filter is protected."; |
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| 92 | return false; |
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| 93 | }else |
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| 94 | gdata->parmloaded = true; |
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| 95 | }else |
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| 96 | *reason = "It is not a text parameter (AFS) file, nor a standalone Mac/PC filter made by Filter Factory/Filter Foundry."; |
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| 97 | } |
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| 98 | |||
| 99 | return readok; |
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| 100 | } |