From 3d7b5efaedce34a78e4f3ab1887a001ab9a90561 Mon Sep 17 00:00:00 2001 From: kramm Date: Mon, 13 Oct 2008 13:56:06 +0000 Subject: [PATCH] avm2 utility scripts --- lib/modules/swfscripts.c | 361 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 361 insertions(+) create mode 100644 lib/modules/swfscripts.c diff --git a/lib/modules/swfscripts.c b/lib/modules/swfscripts.c new file mode 100644 index 0000000..9a74084 --- /dev/null +++ b/lib/modules/swfscripts.c @@ -0,0 +1,361 @@ +/* swfscripts.c + + AVM2 Utility Actionscripts + + Extension module for the rfxswf library. + Part of the swftools package. + + Copyright (c) 2007 Alessandro Molina + Copyright (c) 2007,2008 Matthias Kramm + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ + +#include +#include "../rfxswf.h" + +static unsigned AVM2_uint32toU30(unsigned val, char * out) +{ + unsigned len = 0; + + while(val) { + out[len++] = (val&~0x7f?0x80:0) | (val & 0x7F); + val >>= 7; + } + + return len; +} + +void AVM2_InsertStops(SWF*swf) +{ + TAG * t; + + //MAIN AS3 CLASS INIT + unsigned frame_nums = 0; + + /* Count number of pages to set up stop callback for every frame */ + t = swf->firstTag; + while(t) { + if (t->id == ST_SHOWFRAME) ++frame_nums; + t = t->next; + } + + TAG * classCall = swf_InsertTagBefore(swf, swf->firstTag, ST_SYMBOLCLASS); + swf_SetU16(classCall, 1); // number of symbols + swf_SetU16(classCall, 0); // object id + swf_SetString(classCall, "stop_fla:MainTimeline"); // class to associate with the symbol + + //0x52 is the Flash9 equivalent to DoAction + char init_pool[322] = { + 0x01,0x00,0x00,0x00, /* Flag Parameter to ST_DOABC (1 = lazy load)*/ + 0x00, /* 0 terminated class name */ + 0x10,0x00,0x2e,0x00, /* ABC file magic number (minor version, major version) */ + 0x00, /* zero integers */ + 0x00, /* zero unsigned integers */ + 0x00, /* zero doubles */ + + 0x11, /* 16 strings (+1) */ + 0x08, 's','t','o','p','_','f','l','a', + 0x0c, 'M','a','i','n','T','i','m','e','l','i','n','e', + 0x0d, 'f','l','a','s','h','.','d','i','s','p','l','a','y', + 0x09, 'M','o','v','i','e','C','l','i','p', + 0x15, 's','t','o','p','_','f','l','a',':','M','a','i','n','T','i','m','e','l','i','n','e', + 0x06, 'd','o','s','t','o','p', + 0x00, // Empty string: ref. to the global namespace + 0x04, 's','t','o','p', + 0x0e, 'a','d','d','F','r','a','m','e','S','c','r','i','p','t', + 0x06, 'O','b','j','e','c','t', + 0x0c, 'f','l','a','s','h','.','e','v','e','n','t','s', + 0x0f, 'E','v','e','n','t','D','i','s','p','a','t','c','h','e','r', + 0x0d, 'D','i','s','p','l','a','y','O','b','j','e','c','t', + 0x11, 'I','n','t','e','r','a','c','t','i','v','e','O','b','j','e','c','t', + 0x16, 'D','i','s','p','l','a','y','O','b','j','e','c','t','C','o','n','t','a','i','n','e','r', + 0x06, 'S','p','r','i','t','e', + + 0x07, /* 6 namespaces (+1) */ + 0x16,0x01, /* kind: CONSTANT_PackageNamespace, ref. to: stop_fla */ + 0x16,0x03, /* kind: CONSTANT_PackageNamespace, ref. to: flash.display */ + 0x18,0x05, /* kind: CONSTANT_ProtectedNamespace, ref. to: stop_fla:MainTimeline */ + 0x17,0x01, /* kind: CONSTANT_PackageInternalNs, ref. to: MainTimeline */ + 0x16,0x07, /* kind: CONSTANT_PackageNamespace, ref. to the global namespace */ + 0x16,0x0b, /* kind: CONSTANT_PackageNamespace, ref. to: flash.events */ + + 0x00, /* zero namespace sets */ + + 0x0c, /* 11 MultiNames (+1) */ + /* 1st value: Multiname kind (0x07 = Qualified Name, a multiname with 1 namespace, refers to a method) + 2nd value: refers to namespace name index in the namespace table + 3rd value: refers to method name index in the string table */ + 0x07,0x01,0x02, /* stop_fla:MainTimeLine */ + 0x07,0x02,0x04, /* flash.display:MovieClip */ + 0x07,0x04,0x06, /* <4th namespace>:dostop */ + 0x07,0x05,0x08, /* :stop */ + 0x07,0x05,0x09, /* :addFrameScript */ + 0x07,0x05,0x0a, /* :Object */ + 0x07,0x06,0x0c, /* flash.events:EventDispatcher */ + 0x07,0x02,0x0d, /* flash.display:DisplayObject */ + 0x07,0x02,0x0e, /* flash.display:InteractiveObject */ + 0x07,0x02,0x0f, /* flash.display:DisplayObjectContainer */ + 0x07,0x02,0x10, /* flash.display:Sprite */ + + 0x04, /* 4 Methods */ + /* METHOD 1 */ + 0x00,0x00,0x00,0x00, /* No params (nor params types), no return type, no method name, flags */ + 0x00,0x00,0x00,0x00, /* No params (nor params types), no return type, no method name, flags */ + 0x00,0x00,0x00,0x00, /* No params (nor params types), no return type, no method name, flags */ + 0x00,0x00,0x00,0x00, /* No params (nor params types), no return type, no method name, flags */ + + 0x00, /* Zero Metadata */ + + 0x01, /* 1 Class */ + 0x01, /* Name: ref. to multiname no. 1 (MainTimeline) */ + 0x02, /* Super_name (base class): ref. to multiname no. 2 (flash.display) */ + 0x08, /* Flags: 0x08 value indicates that it uses its protected namespace (and make next field exists) */ + 0x03, /* Ref. to namespace no. 3 (MainTimeline, protected namespace for this class) */ + 0x00, /* No. of interfaces: there are no interfaces (nor interface definition) */ + 0x02, /* Initializer index: ref. to method no. 2 */ + 0x01, /* No. of traits */ + /* Trait section */ + 0x03, /* Name: ref. to multiname no. 3 (stop) */ + 0x01, /* 0000: no attributes (nor metadata in the next subsection); + then 1: type is Trait_Method */ + /* Trait_method section */ + 0x00, /* NO optimization for virtual calls */ + 0x01, /* Ref. to method no. 1 */ + /* HERE FOLLOW THE CLASS DATA */ + 0x00, /* Ref. to method no. 0 as static initializer for this class */ + 0x00, /* No. of traits for this class (no ones) */ + + 0x01, /* 1 Script */ + 0x03, /* Ref. to method no. 3, invoked prior to any other code in the script */ + 0x01, /* No. of traits */ + /* Trait section */ + 0x01, /* Name: ref. to multiname no. 1 (flash.display:MovieClip) */ + 0x04, /* 0000: no attributes (nor metadata in the next subsection); + then 4: type is Trait_Class*/ + /* Trait_class section */ + 0x01, /* Slot ID where the trait resides */ + 0x00, /* Class index (there is only one class)*/ + + 0x04, /* Method body count: there are 4 method bodies */ + /* HERE FOLLOW THE METHOD BODY DATA */ + 0x00, /* Method index, ref. to method no. 0 */ + 0x01, /* Max stack slots the method can use */ + 0x01, /* No. of registers +1 the method can use: this one cannot use registers */ + 0x09,0x0a, /* Min and max scope depth the method can access*/ + 0x03, /* Code length (in bytes) */ + /* The actual method code: + this is the function stop_fla::MainTimeline$cinit()*/ + 0xd0,0x30,0x47, + 0x00, /* No. of exceptions (no exceptions) */ + 0x00, /* No. of traits (no traits) */ + + 0x01, /* Method index, ref. to method no. 1 */ + 0x01, /* Max stack slots the method can use */ + 0x01, /* No. of registers +1 the method can use: this one cannot use registers */ + 0x0a,0x0b, /* Min and max scope depth the method can access*/ + 0x08, /* Code length (in bytes) */ + /* The actual method code: + this is the function stop_fla::dostop(), + the one that actually executes the stop() */ + 0xd0,0x30,0x5d,0x04,0x4f,0x04,0x00,0x47, + 0x00, /* No. of exceptions (no exceptions) */ + 0x00, /* No. of traits (no traits) */ + }; + + /* Header of stop_fla::MainTimeline() method */ + char constructor_header[5] = { + 0x02, /* Method index, ref. to method no. 2 */ + 0x03, /* Max stack slots the method can use */ + 0x01, /* No. of registers +1 the method can use: this one cannot use registers */ + 0x0a,0x0b /* Min and max scope depth the method can access*/ + }; + + char constructor_first[5] = { + /* The actual method code: + This is the function stop_fla::MainTimeline() + Does: calls the super constructor for class #0 (MainTimeline), + then puts on the stack the object, namespace and name of the arguments + needed by the addFrameScripts, then calls the addFrameScripts + */ + 0xd0, /* getlocal0 */ + 0x30, /* pushscope */ + 0xd0, /* getlocal0 */ + 0x49, /* constructsuper */ + 0x00 /* 0 */ + }; + + char constructor_frame_register[10] = { + 0x5d, /* findpropstrict */ + 0x05, /* 'addFrameScript' */ + 0x25, /* pushshort */ + 0x00, /* frame number for pushshort */ + 0x02, /* NOP (hack to write u30 value of frame number when > 127) */ + 0x60, /* getlex */ + 0x03, /* 'stop_fla::dostop' */ + 0x4f, /* callpropvoid */ + 0x05, /* 'addFrameScript' */ + 0x02 /* 2*/ + }; + + char constructor_return[3] = { + 0x47, /* returnvoid */ + 0x00, /* No. of exceptions (no exceptions) */ + 0x00, /* No. of traits (no traits) */ + }; + + char script_init_pool[47] = { + 0x03, /* Method index, ref. to method no. 3 */ + 0x02, /* Max stack slots the method can use */ + 0x01, /* No. of registers +1 the method can use: this one cannot use registers */ + 0x01,0x09, /* Min and max scope depth the method can access*/ + 0x27, /* Code length (in bytes) */ + /* The actual method code: + this is the function script0$init() */ + 0xd0,0x30,0x65,0x00,0x60,0x06,0x30,0x60,0x07,0x30,0x60,0x08,0x30,0x60,0x09,0x30,0x60,0x0a,0x30,0x60, + 0x0b,0x30,0x60,0x02,0x30,0x60,0x02,0x58,0x00,0x1d,0x1d,0x1d,0x1d,0x1d,0x1d,0x1d,0x68,0x01,0x47, + 0x00, /* No. of exceptions (no exceptions) */ + 0x00 /* No. of traits (no traits) */ + }; + /* END OF THE ABCFILE (Actionscript Byte Code) */ + + char code_len[5] = {0, }; + unsigned clen_len = AVM2_uint32toU30((6 + sizeof(constructor_frame_register) * frame_nums), code_len); + unsigned i, offset = 0; + + TAG *classInit = swf_InsertTagBefore(swf, swf->firstTag, ST_DOABC); + + /* Copy the environment Initialization code */ + swf_SetBlock(classInit, (U8*)init_pool,sizeof(init_pool)); + /* Copy Constructor Method header */ + swf_SetBlock(classInit, (U8*)constructor_header, sizeof(constructor_header)); + /* Add Code block size (u30) to the method header */ + swf_SetBlock(classInit, (U8*)code_len, clen_len); + + /* Copy Constructor Method body first part */ + swf_SetBlock(classInit, (U8*)constructor_first, sizeof(constructor_first)); + + /* Register the callback for every frame */ + for (i = 0; i < frame_nums; ++i) { + AVM2_uint32toU30(i,constructor_frame_register + 3); // Write current frame number + swf_SetBlock(classInit, (U8*)constructor_frame_register, sizeof(constructor_frame_register)); + } + + /* Copy Constructor method body ending, just a return */ + swf_SetBlock(classInit, (U8*)constructor_return, sizeof(constructor_return)); + + /* Copy the script init code */ + swf_SetBlock(classInit, (U8*)script_init_pool, sizeof(script_init_pool)); +} + +void AVM2_InsertButtonLink(SWF*swf) +{ + unsigned char displayEventCode[] = { + // button.dispatchEvent(new Event("pdflinkdown"),true,true) + + 0x01, 0x00, 0x00, 0x00, //flags + 0x00, + 0x10, 0x00, 0x2e, 0x00, //version + 0x00, //no ints + 0x00, //no uints + 0x00, //no floats + 0x14, //19 strings + 0x17, 'e','v','e','n','t','_','o','h','n','e','_','l','i','s','t','e','n','e','r','_','f','l','a', + 0x0c, 'M','a','i','n','t','i','m','e','l','i','n','e', + 0x0d, 'f','l','a','s','h','.','d','i','s','p','l','a','y', + 0x09, 'M','o','v','i','e','c','l','i','p', + 0x24, 'e','v','e','n','t','_','o','h','n','e','_','l','i','s','t','e','n','e','r','_','f','l','a',':','M','a','i','n','t','i','m','e','l','i','n','e', + 0x00, + 0x06, 'b','u','t','t','o','n', + 0x06, 'f','r','a','m','e','1', + 0x0c, 'f','l','a','s','h','.','e','v','e','n','t','s', + 0x05, 'E','v','e','n','t', + 0x0b, 'p','d','f','l','i','n','k','d','o','w','n', + 0x0d, 'd','i','s','p','a','t','c','h','E','v','e','n','t', + 0x0e, 'a','d','d','F','r','a','m','e','S','c','r','i','p','t', + 0x06, 'O','b','j','e','c','t', + 0x0f, 'E','v','e','n','t','d','i','s','p','a','t','c','h','e','r', + 0x0d, 'D','i','s','p','l','a','y','O','b','j','e','c','t', + 0x11, 'I','n','t','e','r','a','c','t','i','v','e','O','b','j','e','c','t', + 0x16, 'D','i','s','p','l','a','y','O','b','j','e','c','t','C','o','n','t','a','i','n','e','r', + 0x06, 'S','p','r','i','t','e', + + 0x07, // 6 namespaces + 0x16, 0x01, + 0x16, 0x03, + 0x18, 0x05, + 0x16, 0x06, + 0x17, 0x01, + 0x16, 0x09, + + 0x00, //zero namespace sets + + 0x0e, //13 multinames + 0x07, 0x01, 0x02, + 0x07, 0x02, 0x04, + 0x07, 0x04, 0x07, + 0x07, 0x05, 0x08, + 0x07, 0x06, 0x0a, + 0x07, 0x04, 0x0c, + 0x07, 0x04, 0x0d, + 0x07, 0x04, 0x0e, + 0x07, 0x06, 0x0f, + 0x07, 0x02, 0x10, + 0x07, 0x02, 0x11, + 0x07, 0x02, 0x12, + 0x07, 0x02, 0x13, + + 0x04, // 4 methods + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, + + 0x00, // zero metadata + + 0x01, // 1 class + 0x01, 0x02, 0x08, 0x03, 0x00, 0x02, + 0x02, // 2 traits + 0x03, 0x00, // name, slot + 0x00, 0x02, 0x00, + 0x04, 0x01, // name, method, + 0x00, 0x01, + 0x00, // ref to method 0 (initializer) + 0x00, // no traits + + 0x01, // 1 script + 0x03, 0x01, 0x01, 0x04, 0x01, 0x00, + + 0x04, // 4 method bodies + // method 1 + 0x00, 0x01, 0x01, 0x09, 0x0a, + 0x03, 0xd0, 0x30, 0x47, // code + 0x00, 0x00, + // method 2 + 0x01, 0x05, 0x01, 0x0a, 0x0b, + 0x11, 0xd0, 0x30, 0x60, 0x03, 0x5d, 0x05, 0x2c, 0x0b, 0x26, 0x26, 0x4a, 0x05, 0x03, 0x4f, 0x06, 0x01, 0x47, // code + 0x00, 0x00, + // method 3 + 0x02, 0x03, 0x01, 0x0a, 0x0b, + 0x0f, 0xd0, 0x30, 0xd0, 0x49, 0x00, 0x5d, 0x07, 0x24, 0x00, 0x60, 0x04, 0x4f, 0x07, 0x02, 0x47, // code + 0x00, 0x00, + // method 4 + 0x03, 0x02, 0x01, 0x01, 0x09, + 0x27, 0xd0, 0x30, 0x65, 0x00, 0x60, 0x08, 0x30, 0x60, 0x09, 0x30, 0x60, 0x0a, 0x30, 0x60, 0x0b, //code + 0x30, 0x60, 0x0c, 0x30, 0x60, 0x0d, 0x30, 0x60, 0x02, 0x30, 0x60, 0x02, 0x58, 0x00, 0x1d, 0x1d, + 0x1d, 0x1d, 0x1d, 0x1d, 0x1d, 0x68, 0x01, 0x47, + 0x00, 0x00, + }; +} + -- 1.7.10.4