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Overview
Comment: | Whoops. Wrong mime |
---|---|
Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | hypnotoad |
Files: | files | file ages | folders |
SHA3-256: |
6010c7a80d90b2ff34102d469e181324 |
User & Date: | hypnotoad 2018-12-06 23:09:34.180 |
Context
2018-12-06
| ||
23:15 | Smtp.tcl reverted to the pooryorick version All package require mime 1.6 have been changes to package require -exact mime check-in: 5e923cd325 user: hypnotoad tags: hypnotoad | |
23:09 | Whoops. Wrong mime check-in: 6010c7a80d user: hypnotoad tags: hypnotoad | |
22:46 | Rolled oometa back to the release version check-in: eb80bb87f0 user: hypnotoad tags: hypnotoad | |
Changes
Changes to modules/mime/mime.tcl.
1 2 3 4 5 6 7 8 9 10 11 12 | # mime.tcl - MIME body parts # # (c) 1999-2000 Marshall T. Rose # (c) 2000 Brent Welch # (c) 2000 Sandeep Tamhankar # (c) 2000 Dan Kuchler # (c) 2000-2001 Eric Melski # (c) 2001 Jeff Hobbs # (c) 2001-2008 Andreas Kupries # (c) 2002-2003 David Welton # (c) 2003-2008 Pat Thoyts # (c) 2005 Benjamin Riefenstahl | | > > > | > > > > > > > > > | | 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 | # mime.tcl - MIME body parts # # (c) 1999-2000 Marshall T. Rose # (c) 2000 Brent Welch # (c) 2000 Sandeep Tamhankar # (c) 2000 Dan Kuchler # (c) 2000-2001 Eric Melski # (c) 2001 Jeff Hobbs # (c) 2001-2008 Andreas Kupries # (c) 2002-2003 David Welton # (c) 2003-2008 Pat Thoyts # (c) 2005 Benjamin Riefenstahl # (c) 2013-2018 Poor Yorick # # # See the file "license.terms" for information on usage and redistribution # of this file, and for a DISCLAIMER OF ALL WARRANTIES. # # Influenced by Borenstein's/Rose's safe-tcl (circa 1993) and Darren New's # unpublished package of 1999. # # new string features and inline scan are used, requiring 8.3. # Fix for 00d04c4f12l, base64 transchan over a refchan: segmentation fault, # requires 8.6.9 package require Tcl 8.6.9 package require {mime qp} package require namespacex package require tcl::chan::cat package require tcl::chan::memchan package require tcl::chan::string package require {chan base} package require {chan getslimit} package require sha256 package provide mime 1.7 if {[catch {package require Trf 2.0}]} { # Fall-back to tcl-based procedures of base64 and quoted-printable encoders # Warning! # These are a fragile emulations of the more general calling sequence # that appears to work with this code here. |
︙ | ︙ | |||
62 63 64 65 66 67 68 | unset ::major } # # state variables: # # canonicalP: input is in its canonical form | < < | < < | < < < < < < > | > < < < < < < < < < < < < < < | 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 | unset ::major } # # state variables: # # canonicalP: input is in its canonical form # encoding: transfer encoding # version: MIME-version # header: dictionary (keys are lower-case) # value: either "chan" or "parts" # # file: input file # fd: cached file-descriptor, typically for root # root: token for top-level part, for (distant) subordinates # count: length in octets of (encoded) content # # parts: list of bodies (tokens) namespace eval ::mime { variable mime array set mime {uid 0} # RFC 822 lexemes variable addrtokenL lappend addrtokenL \; , < > : . ( ) @ \" \[ ] \\ variable addrlexemeL { LX_SEMICOLON LX_COMMA LX_LBRACKET LX_RBRACKET LX_COLON LX_DOT LX_LPAREN LX_RPAREN LX_ATSIGN LX_QUOTE LX_LSQUARE LX_RSQUARE LX_QUOTE } variable encList { ascii US-ASCII big5 Big5 cp1250 Windows-1250 cp1251 Windows-1251 cp1252 Windows-1252 cp1253 Windows-1253 |
︙ | ︙ | |||
323 324 325 326 327 328 329 | ksc5601 KS_C_5601-1989 ksc5601 KSC5601 ksc5601 korean shiftjis MS_Kanji utf-8 UTF8 } | | < < < | < | < < < | < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < | | < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < | < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < | < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < | < | < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < | < < < < < < < | < < | < < < < < < < < < < | < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < | < < < < < < < < < < < < < < < < < < < < < < | < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < | < | < < < < | < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < | | < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < | < < | | | | | | | < < | < > < | | 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 | ksc5601 KS_C_5601-1989 ksc5601 KSC5601 ksc5601 korean shiftjis MS_Kanji utf-8 UTF8 } namespace export {*}{ .destroy .new body cookie datetime field_decode header mapencoding qp parseaddress property reversemapencoding serialize setheader uniqueID word_decode word_encode } } proc ::mime::addchan {token chan} { variable channels upvar 0 $token state upvar 0 state(fd) fd if {[info exists fd]} { error [list {a channel is already present}] } if {[$chan configure -encoding] ne {binary}} { $chan configure -translation auto } set fd $chan incr channels($fd) return } # ::mime::addr_next -- # # Locate the next address in a mime token. # # Arguments: # token The MIME token to work from. # # Results: # Returns 1 if there is another address, and 0 if there is not. proc ::mime::addr_next token { # FRINK: nocheck upvar 0 $token state set nocomplain [package vsatisfies [package provide Tcl] 8.4] foreach prop {comment domain error group local memberP phrase route} { if {$nocomplain} { unset -nocomplain state($prop) } else { catch {unset state($prop)} } } switch [set code [catch {mime::addr_specification $token} result copts]] { 0 { if {!$result} { return 0 } switch $state(lastC) { LX_COMMA - LX_END { } default { # catch trailing comments... set lookahead $state(input) parselexeme $token set state(input) $lookahead } } } 7 { set state(error) $result while 1 { switch $state(lastC) { LX_COMMA - LX_END { break } default { parselexeme $token } } } } default { return -options $copts $result } } foreach prop {comment domain error group local memberP phrase route} { if {![info exists state($prop)]} { set state($prop) {} } } return 1 } # ::mime::addr_specification -- # # Uses lookahead parsing to determine whether there is another # valid e-mail address or not. Throws errors if unrecognized # or invalid e-mail address syntax is used. # # Arguments: # token The MIME token to work from. # # Results: # Returns 1 if there is another address, and 0 if there is not. proc ::mime::addr_specification {token} { # FRINK: nocheck upvar 0 $token state set lookahead $state(input) switch [parselexeme $token] { LX_ATOM - LX_QSTRING { set state(phrase) $state(buffer) } LX_SEMICOLON { |
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2885 2886 2887 2888 2889 2890 2891 | LX_ATSIGN { set state(input) $lookahead return [addr_routeaddr $token 0] } default { | | | | | | 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 | LX_ATSIGN { set state(input) $lookahead return [addr_routeaddr $token 0] } default { return -code 7 [ format "unexpected character at beginning (found %s)" \ $state(buffer)] } } switch [parselexeme $token] { LX_ATOM - LX_QSTRING { append state(phrase) " " $state(buffer) return [addr_phrase $token] } |
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2929 2930 2931 2932 2933 2934 2935 | LX_SEMICOLON - LX_COMMA - LX_END { set state(memberP) $state(glevel) | > | > | > > < | | 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 | LX_SEMICOLON - LX_COMMA - LX_END { set state(memberP) $state(glevel) if { $state(lastC) eq "LX_SEMICOLON" && ([incr state(glevel) -1] < 0) } { #TODO: this path is not covered by tests return -code 7 "extraneous semi-colon" } set state(local) $state(phrase) unset state(phrase) } default { return -code 7 [ format "expecting mailbox (found %s)" $state(buffer)] } } return 1 } # ::mime::addr_routeaddr -- # # Parses the domain portion of an e-mail address. Finds the '@' # sign and then calls mime::addr_route to verify the domain. # # Arguments: # token The MIME token to work from. # # Results: # Returns 1 if there is another address, and 0 if there is not. proc ::mime::addr_routeaddr {token {checkP 1}} { # FRINK: nocheck upvar 0 $token state set lookahead $state(input) if {[parselexeme $token] eq "LX_ATSIGN"} { #TODO: this path is not covered by tests mime::addr_route $token } else { set state(input) $lookahead } mime::addr_local $token switch $state(lastC) { LX_ATSIGN { mime::addr_domain $token } LX_SEMICOLON - LX_RBRACKET |
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3002 3003 3004 3005 3006 3007 3008 3009 3010 3011 3012 3013 3014 3015 3016 3017 3018 3019 3020 3021 3022 3023 | if {($checkP) && ($state(lastC) ne "LX_RBRACKET")} { return -code 7 [ format "expecting right-bracket (found %s)" $state(buffer)] } return 1 } # ::mime::addr_route -- # # Attempts to parse the portion of the e-mail address after the @. # Tries to verify that the domain definition has a valid form. # # Arguments: # token The MIME token to work from. # # Results: # Returns nothing if successful, and throws an error if invalid # syntax is found. proc ::mime::addr_route {token} { # FRINK: nocheck | > < | | | | | | 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 | if {($checkP) && ($state(lastC) ne "LX_RBRACKET")} { return -code 7 [ format "expecting right-bracket (found %s)" $state(buffer)] } return 1 } # ::mime::addr_route -- # # Attempts to parse the portion of the e-mail address after the @. # Tries to verify that the domain definition has a valid form. # # Arguments: # token The MIME token to work from. # # Results: # Returns nothing if successful, and throws an error if invalid # syntax is found. proc ::mime::addr_route {token} { # FRINK: nocheck upvar 0 $token state set state(route) @ while 1 { switch [parselexeme $token] { LX_ATOM - LX_DLITERAL { append state(route) $state(buffer) } default { return -code 7 \ [format "expecting sub-route in route-part (found %s)" \ $state(buffer)] } } switch [parselexeme $token] { LX_COMMA { append state(route) $state(buffer) while 1 { switch [parselexeme $token] { LX_COMMA { } LX_ATSIGN { append state(route) $state(buffer) break } |
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3071 3072 3073 3074 3075 3076 3077 | LX_COLON { append state(route) $state(buffer) return } default { | | | | > | < | | | | | | > < | | | > < | | | | | | > < | | | | > < | | | > | 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 | LX_COLON { append state(route) $state(buffer) return } default { return -code 7 [ format "expecting colon to terminate route (found %s)" \ $state(buffer)] } } } } # ::mime::addr_domain -- # # Attempts to parse the portion of the e-mail address after the @. # Tries to verify that the domain definition has a valid form. # # Arguments: # token The MIME token to work from. # # Results: # Returns nothing if successful, and throws an error if invalid # syntax is found. proc ::mime::addr_domain token { # FRINK: nocheck upvar 0 $token state while 1 { switch [parselexeme $token] { LX_ATOM - LX_DLITERAL { append state(domain) $state(buffer) } default { return -code 7 [ format "expecting sub-domain in domain-part (found %s)" \ $state(buffer)] } } switch [parselexeme $token] { LX_DOT { append state(domain) $state(buffer) } LX_ATSIGN { append state(local) % $state(domain) unset state(domain) } default { return } } } } # ::mime::addr_local -- # # # Arguments: # token The MIME token to work from. # # Results: # Returns nothing if successful, and throws an error if invalid # syntax is found. proc ::mime::addr_local {token} { # FRINK: nocheck upvar 0 $token state set state(memberP) $state(glevel) while 1 { switch [parselexeme $token] { LX_ATOM - LX_QSTRING { append state(local) $state(buffer) } default { return -code 7 \ [format "expecting mailbox in local-part (found %s)" \ $state(buffer)] } } switch [parselexeme $token] { LX_DOT { append state(local) $state(buffer) } default { return } } } } # ::mime::addr_phrase -- # # # Arguments: # token The MIME token to work from. # # Results: # Returns nothing if successful, and throws an error if invalid # syntax is found. proc ::mime::addr_phrase {token} { # FRINK: nocheck upvar 0 $token state while 1 { switch [parselexeme $token] { LX_ATOM - LX_QSTRING { append state(phrase) " " $state(buffer) } default { break } } } switch $state(lastC) { LX_LBRACKET { return [addr_routeaddr $token] } LX_COLON { return [addr_group $token] } LX_DOT { append state(phrase) $state(buffer) return [addr_phrase $token] } default { return -code 7 [ format "found phrase instead of mailbox (%s%s)" \ $state(phrase) $state(buffer)] } } } # ::mime::addr_group -- # # # Arguments: # token The MIME token to work from. # # Results: # Returns nothing if successful, and throws an error if invalid # syntax is found. proc ::mime::addr_group {token} { # FRINK: nocheck upvar 0 $token state if {[incr state(glevel)] > 1} { return -code 7 [ format "nested groups not allowed (found %s)" $state(phrase)] } set state(group) $state(phrase) unset state(phrase) set lookahead $state(input) while 1 { switch [parselexeme $token] { LX_SEMICOLON - LX_END { set state(glevel) 0 return 1 } LX_COMMA { } default { set state(input) $lookahead return [addr_specification $token] } } } } # ::mime::addr_end -- # # # Arguments: # token The MIME token to work from. # # Results: # Returns nothing if successful, and throws an error if invalid # syntax is found. proc ::mime::addr_end {token} { # FRINK: nocheck upvar 0 $token state switch $state(lastC) { LX_SEMICOLON { if {[incr state(glevel) -1] < 0} { return -code 7 "extraneous semi-colon" } } LX_COMMA - LX_END { } default { return -code 7 [ format "junk after local@domain (found %s)" $state(buffer)] } } } # ::mime::addr_x400 -- # # # Arguments: # token The MIME token to work from. # |
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3325 3326 3327 3328 3329 3330 3331 | if {[set x [string first / $mbox]] > 0} { set mbox [string range $mbox 0 [expr {$x - 1}]] } return [string trim $mbox \"] } | > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | | 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 | if {[set x [string first / $mbox]] > 0} { set mbox [string range $mbox 0 [expr {$x - 1}]] } return [string trim $mbox \"] } proc ::mime::checkinputs {} { upvar 1 inputs inputs if {[incr inputs] > 1} { error [list {more than one input source provided}] } } proc ::mime::body_decoded _ { set token [$_ token] upvar 0 $token state upvar 0 state(bodychandecoded) bodychandecoded $_ parsepart if {[info exists state(parts)]} { error [list {not a leaf part} $token] } if {$state(canonicalP)} { $state(fd) seek 0 return $state(fd) } else { if {![info exists bodychandecoded]} { set bodychandecoded [::tcllib::chan::base .new [ info cmdcount]_bodydecoded [file tempfile]] $bodychandecoded configure -translation binary $state(bodychan) seek 0 $state(bodychan) copy [$bodychandecoded $ chan] $bodychandecoded seek 0 $state(bodychan) seek 0 setencoding $token $bodychandecoded setcharset $_ $bodychandecoded } $bodychandecoded seek 0 return $bodychandecoded } } proc ::mime::body_raw _ { set token [$_ token] upvar 0 $token state $_ parsepart if {[info exists state(parts)]} { error [list {not a leaf part} $token] } if {$state(canonicalP)} { $state(fd) seek 0 return $state(fd) } else { $state(bodychan) seek 0 return $state(bodychan) } } namespace eval ::mime::body { namespace ensemble create -parameters token namespace export * namespacex import [namespace parent] body_decoded decoded body_raw raw } proc ::mime::contenttype _ { set token [$_ token] upvar 0 $token state try { $_ header get content-type } on error {cres copts} { # rfc 2045 5.2 try { if {header::exists $token MIME-Version} { return text/plain } else { switch $state(spec) { cgi - http { return {text/html {charset UTF-8}} } mime { # do not specify US-ASCII here as it is the default return text/plain } } } } on error {} { return application/octet-stream } } } proc ::mime::cookie_delete {_ name args} { # this -expires overrides any that might be in $args $_ cookie set value {} {*}$args expires [ format 0 -timezone :UTC -format {%a, %d %b %Y %H:%M:%S %z}] return } # ::mime::cookie_set # # Set a return cookie. You must call this before you call # ncgi::header or ncgi::redirect # # Arguments: # args Name value pairs, where the names are: # name Cookie name # value Cookie value # ?path? Path restriction # ?domain? domain restriction # ?expires? Time restriction # ?httponly? boolean, default true # # Side Effects: # Formats and stores the Set-Cookie header for the reply. proc ::mime::cookie_set {_ name value args} { dict size $args foreach {key val} $args { switch $key { domain - expires - httponly - path { set $key $val } default { error [list {wrong # args} {should be} \ [list name value ?path path? ?domain domain? \ ?expires date? ?httponly boolean?]] } } } set line $name=$value set params {} set flags {} foreach extra {path domain} { if {[info exists $extra]} { lappend params $extra [set $extra] } } if {[info exists expires]} { switch -glob $expires { *GMT { # do nothing } default { set expires [clock format [datetimescan $expires] \ -format {%A, %d-%b-%Y %H:%M:%S GMT} -gmt 1] } } lappend params expires $expires } if {[info exists secure]} { lappend flags secure } if {![info exists httponly] || $httponly} { lappend flags HttpOnly } if {[llength $flags]} { lappend params $flags } $_ header set Set-Cookie $line $params return } # ::mime::datetime -- # # Fortunately the clock command in the Tcl 8.x core does all the heavy # lifting for us (except for timezone calculations). # # mime::datetime takes a string containing an 822-style date-time # specification and returns the specified property. # # The list of properties and their ranges are: # # property range # ======== ===== # clock raw result of "clock scan" |
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3377 3378 3379 3380 3381 3382 3383 | variable MONTHS_SHORT [list {} \ Jan Feb Mar Apr May Jun \ Jul Aug Sep Oct Nov Dec] variable MONTHS_LONG [list {} \ January February March April May June July \ August Sepember October November December] } | | | < < < < < < < < < < < < | | | 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 | variable MONTHS_SHORT [list {} \ Jan Feb Mar Apr May Jun \ Jul Aug Sep Oct Nov Dec] variable MONTHS_LONG [list {} \ January February March April May June July \ August Sepember October November December] } proc ::mime::datetime {value property} { if {$value eq {-now}} { set clock [clock seconds] } else { set clock [datetimescan $value] } switch $property { clock { return $clock } hour { set value [clock format $clock -format %H] } |
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3430 3431 3432 3433 3434 3435 3436 | mon { set value [clock format $clock -format %m] } month { variable MONTHS_SHORT | | | | < | | | | | 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 | mon { set value [clock format $clock -format %m] } month { variable MONTHS_SHORT return [lindex $MONTHS_SHORT [ scan [clock format $clock -format %m] %d]] } proper { set gmt [clock format $clock -format "%Y-%m-%d %H:%M:%S" -gmt true] if {[set diff [expr {($clock-[clock scan $gmt]) / 60}]] < 0} { set s - set diff [expr {-($diff)}] } else { set s + } set zone [format %s%02d%02d $s [ expr {$diff / 60}] [expr {$diff % 60}]] variable WDAYS_SHORT set wday [lindex $WDAYS_SHORT [clock format $clock -format %w]] variable MONTHS_SHORT set mon [lindex $MONTHS_SHORT [ scan [clock format $clock -format %m] %d]] return [ clock format $clock -format "$wday, %d $mon %Y %H:%M:%S $zone"] } rclock { #TODO: these paths are not covered by tests if {$value eq "-now"} { return 0 } else { |
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3492 3493 3494 3495 3496 3497 3498 | zone { set value [string trim [string map [list \t { }] $value]] if {[set x [string last { } $value]] < 0} { return 0 } set value [string range $value [expr {$x + 1}] end] | | > | > | > | > | > | > | 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 | zone { set value [string trim [string map [list \t { }] $value]] if {[set x [string last { } $value]] < 0} { return 0 } set value [string range $value [expr {$x + 1}] end] switch [set s [string index $value 0]] { + - - { if {$s eq "+"} { #TODO: This path is not covered by tests set s {} } set value [string trim [string range $value 1 end]] if {( [string length $value] != 4) || [scan $value %2d%2d h m] != 2 || $h > 12 || $m > 59 || ($h == 12 && $m > 0) } { error "malformed timezone-specification: $value" } set value $s[expr {$h * 60 + $m}] } default { set value [string toupper $value] |
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3545 3546 3547 3548 3549 3550 3551 | if {[set value [string trimleft $value 0]] eq {}} { #TODO: this path is not covered by tests set value 0 } return $value } | > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | < < > | | | > > > > > > > > > > > > > > > | > | > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | < | | | 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 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set value 0 } return $value } proc ::mime::datetimescan value { variable timeformats foreach format $timeformats { if {![catch {clock scan $value -format $format} cres copts]} break } return -options $copts $cres } # ::mime::encoding -- # # Determines how a token is encoded. # # Arguments: # token # The MIME token to parse. # # Results: # Returns the encoding of the message (the null string, base64, # or quoted-printable). proc ::mime::encoding _ { set token [$_ token] # FRINK: nocheck upvar 0 $token state upvar 0 state(fd) chan state(params) params if {[info exists state(encoding)]} { return $state(encoding) } lassign [$_ contenttype] content switch -glob $content { audio/* - image/* - video/* { return [set state(encoding) base64] } message/* - multipart/* { return [set state(encoding) {}] } default {# Skip} } set asciiP 1 set lineP 1 if {[info exists state(parts)]} { return [set state(encoding) {}] } if {[set current [$chan tell]] < 0} { makeseekable $token set current [$chan tell] } set chanconfig [$chan configure] try { set buf {} set dataend 0 while {[set data [$chan read 8192]] ne {} || $buf ne {}} { if {$data eq {}} { set dataend 1 } set data $buf[set buf {}]$data[set data{}] set lines [split $data \n] if {!$dataend} { set buf [lindex $lines end] set lines [lrange $lines[set lines {}] 0 end-1] } if {[llength $lines]} { if {$asciiP} { set asciiP [encodingasciiP $lines] } if {$lineP} { set lineP [encodinglineP $lines] } if {(!$asciiP) && (!$lineP)} { break } } } } finally { $chan configure {*}$chanconfig $chan seek 0 } switch -glob $content { text/* { if {!$asciiP} { #TODO: this path is not covered by tests if {[dict exists $params charset]} { set v [string tolower [dict get $params $charset]] if {($v ne {us-ascii}) \ && (![string match {iso-8859-[1-8]} $v])} { return [set state(encoding) base64] } } } if {!$lineP} { return [set state(encoding) quoted-printable] } } default { if {(!$asciiP) || (!$lineP)} { return [set state(encoding) base64] } } } return [set state(encoding) {}] } # ::mime::encodingasciiP -- # # Checks if a string is a pure ascii string, or if it has a non-standard # form. # # Arguments: # line The line to check. # # Results: # Returns 1 if \r only occurs at the end of lines, and if all # characters in the line are between the ASCII codes of 32 and 126. proc ::mime::encodingasciiP lines { foreach line $lines { set firstr [string first \r $line]] if { $firstr > 0 && $first != [string length $line] } { return 0 } foreach c [split $line {}] { switch $c { { } - \t - \r - \n { } default { binary scan $c c c if {($c < 32) || ($c > 126)} { return 0 } } } } } return 1 } # ::mime::encodinglineP -- # # Checks if a string is a line is valid to be processed. # # Arguments: # line The line to check. # # Results: # Returns 1 the line is less than 76 characters long, the line # contains more characters than just whitespace, the line does # not start with a '.', and the line does not start with 'From '. proc ::mime::encodinglineP lines { foreach line $line { if {([string length $line] > 76) \ || ($line ne [string trimright $line]) \ || ([string first . $line] == 0) \ || ([string first {From } $line] == 0)} { return 0 } } return 1 } proc ::mime::contentid _ { set token [$_ token] upvar 0 $token state upvar 0 state(parts) parts $_ parsepart if {[info exists parts]} { foreach part $parts { upvar 0 $part childpart set created 0 if {![header::exists $part message-id]} { set created 1 header::setinternal $part Message-ID [messageid $part] } # use message-id here, not content-id, to account for header info # in the parts append ids [$part header get message-id] if {$created} { if {!$childpart(addmessageid)} { header::unset $part message-id } } } set id [::sha2::sha256 -hex $ids] } else { set chan [$_ body decoded] set config [$chan configure] if {[dict exists $config -chan]} { dict unset config -chan } try { $chan seek 0 set id [::sha2::sha256 -hex -channel [$chan configure -chan]] $chan seek 0 } finally { $chan configure {*}$config } } return $id@| } proc ::mime::dropchan token { variable channels upvar 0 $token state upvar 0 state(fd) fd if {[info exists fd]} { if {[incr channels($fd) -1] == 0} { unset channels($fd) if {$state(closechan)} { $fd close } } unset state(fd) } } # ::mime::.destroy -- # # mime::.destroy destroys a MIME part. # # If the -subordinates option is present, it specifies which # subordinates should also be destroyed. The default value is # "dynamic". # # Arguments: # token The MIME token to parse. # args Args can be optionally be of the following form: # ?-subordinates "all" | "dynamic" | "none"? # # Results: # Returns an empty string. proc ::mime::.destroy {token args} { # FRINK: nocheck upvar 0 $token state array set options [list -subordinates dynamic] array set options $args set ensemble $state(ensemble) switch $options(-subordinates) { all { #TODO: this code path is untested if {[info exists state(parts)]} { foreach part $state(parts) { $part .destroy } } } dynamic { foreach part $state(dynamic) { $part .destroy } } none { } default { error "unknown value for -subordinates $options(-subordinates)" } } dropchan $token if {$state(bodychan) ne {}} { if {[$state(bodychan) configure -chan] in [chan names]} { rename $state(bodychan) {} } } if {[info exists state(bodychandecoded)]} { rename $state(bodychandecoded) {} } foreach name [array names state] { unset state($name) } if {[namespace which $ensemble] ne {}} { rename $ensemble {} # FRINK: nocheck } unset $token } proc ::mime::messageid _ { set token [$_ token] upvar 0 $token state #set unique [uniqueID] if {![header::exists $token content-id] && $state(addcontentid)} { header::setinternal $token Content-ID [contentid $_] } set sha [::sha2::SHA256Init] foreach {key val} [lsort -stride 2 [$_ header get]] { lassign $val value params ::sha2::SHA256Update $sha $key$value foreach {pkey pval} $params { ::sha2::SHA256Update $sha $pkey$pval } } set hash [::sha2::SHA256Final $sha] binary scan $hash H* hex return $hex@| } # ::mime::mimegets -- # # like [gets] but does not run over multipart boundaries # # only needed during the parsing stage, since after that the content of each # part is in a separate file # # Arguments: # token The MIME token to parse. # # Results: # Returns the size in bytes of the MIME token. proc ::mime::mimegets {token varname} { upvar 0 $token state upvar 0 state(boundary) boundary state(eof) eof upvar 1 $varname line if {$eof} { set line {} return -1 } set res [$state(fd) gets line] if {$res == -1} { set eof 1 set line {} return -1 } else { set found [string first --$boundary $line] if {$found == 0} { if {[string first --$boundary-- $line] >= 0} { set state(sawclosing) 1 set eof 1 } set line {} return -1 } return $res } } # ::mime::getsize -- # # Determine the size (in bytes) of a MIME part/token # # Arguments: # token The MIME token to parse. # # Results: # Returns the size in bytes of the MIME token. proc ::mime::getsize _ { set token [$_ token] # FRINK: nocheck upvar 0 $token state upvar 0 state(bodychan) bodychan state(fd) inputchan $_ parsepart if {[info exists state(parts)]} { set size 0 foreach part $state(parts) { incr size [getsize $part] } } else { set size 0 if {$state(canonicalP)} { if {[set current [$inputchan tell]] < 0} { makeseekable $token } set current [$inputchan tell] $inputchan seek 0 end set size [$inputchan tell] $inputchan seek $current } else { set size $state(size) } } # no longer needed since size is calculated during parsing #if {$state(encoding) eq {base64}} { # set size [expr {($size * 3 + 2) / 4}] #} return $size } proc ::mime::getTransferEncoding _ { set token [$_ token] upvar 0 $token state # not the global [encoding] set encoding [encoding $_] # See also issues [#477088] and [#539952] switch $encoding { base64 - quoted-printable - 7bit - 8bit - binary - {} { } default { error [list {Can't handle content encoding} $encoding] } } return $encoding } namespace eval ::mime::header { variable tchar # hypen is first for inclusion in brackets variable tchar_re {-!#$%&'*+.^`|~0-9A-Za-z} variable token_re "^(\[$tchar_re]*)\\s*(?:;|$)?" variable notattchar_re "\[^[string map {* {} ' {} % {}} $tchar_re]]" # RFC 2045 lexemes variable typetokenL lappend typetokenL \; , < > : ? ( ) @ \" \[ ] = / \\ variable typelexemeL { LX_SEMICOLON LX_COMMA LX_LBRACKET LX_RBRACKET LX_COLON LX_QUESTION LX_LPAREN LX_RPAREN LX_ATSIGN LX_QUOTE LX_LSQUARE LX_RSQUARE LX_EQUALS LX_SOLIDUS LX_QUOTE } variable internal 0 } proc ::mime::header::boundary {} { return [uniqueID] } # ::mime::dunset -- # # Unset all values for $key, without "normalizing" other redundant keys proc ::mime::header::dunset {dictname key} { upvar 1 $dictname dict set dict [join [lmap {key1 val} $dict[set dict {}] { if {$key1 eq $key} continue list $key1 $val }]] } proc ::mime::header::exists {token name} { upvar 0 $token state set lname [string tolower $name] expr {[dict exists $state(headerlower) $lname] || [dict exists $state(headerinternallower) $lname] || [dict exists $state(contentidlower) $lname] || [dict exists $state(messageidlower) $lname] } } # ::mime::header get -- # # Returns the header of a message as a multidict where each value is a list # containing the header value and a dictionary parameters for that header. # If $key is provided, returns only the value and paramemters of the last # maching header, without regard for case. # # If -names is specified, a list of all header names is returned. # proc ::mime::header::get {_ {key {}}} { set token [$_ token] # FRINK: nocheck upvar 0 $token state parse $token set contentid $state(contentid) set contentidlower $state(contentidlower) set header $state(header) set headerlower $state(headerlower) set headerinternal $state(headerinternal) set headerinternallower $state(headerinternallower) set messageid $state(messageid) set messageidlower $state(messageidlower) switch $key { {} { set result [list {*}$messageid {*}$contentid {*}$headerinternal \ {*}$header] if {![dict exists $headerlower content-transfer-encoding] && !$state(canonicalP)} { set tencoding [getTransferEncoding $_] if {$tencoding ne {}} { lappend result Content-Transfer-Encoding [list $tencoding {}] } } return $result } -names { return [dict keys $header] } default { set lower [string tolower $key] switch $lower { content-id { if {![dict size $contentidlower]} { contentid $token } return [dict get $contentidlower content-id] } content-transfer-encoding { if {[dict exists $headerinternallower $lower]} { return [dict get $headerinternallower $lower] } elseif {!$state(canonicalP)} { return [list [getTransferEncoding $_] {}] } else { error [list {no such header} $key] } } message-id { if {![dict size $messageidlower]} { setinternal $token Message-ID [[namespace parent]::messageid $_] } return [dict get $messageidlower message-id] } mime-version { return [list $state(version) {}] } default { set res {} if {[dict exists $headerinternallower $lower]} { return [dict get $headerinternallower $lower] } elseif {[dict exists $headerlower $lower]} { return [dict get $headerlower $lower] } else { error [list {no such header} $key] } } } } } } proc ::mime::header::parse token { # FRINK: nocheck upvar 0 $token state upvar 0 state(fd) fd state(boundary) boundary if {$state(canonicalP) || $state(headerparsed)} { return } set state(headerparsed) 1 if {[info exists boundary]} { set gets [list [namespace parent]::mimegets $token line] } else { set gets [list $fd gets line] } set vline {} while 1 { set blankP 0 set x [{*}$gets] if {$x <= 0} { set blankP 1 } # to do 2018-11-13: probably remove this now that line translation # happens automatically, if {!$blankP && [string match *\r $line]} { set line [string range $line 0 $x-2] if {$x == 1} { set blankP 1 } } # there is a space and a tab between the brackets in next line if {!$blankP && [string match {[ ]*} $line]} { append vline { } [string trimleft $line " \t"] continue } if {$vline eq {}} { if {$blankP} { break } set vline $line continue } if { [set x [string first : $vline]] <= 0 || [set mixed [string trimright [ string range $vline 0 [expr {$x - 1}]]]] eq {} } { error [list {improper line in header} $vline] } set value [string trim [string range $vline [expr {$x + 1}] end]] switch [set lower [string tolower $mixed]] { content-disposition { set_ $token $mixed {*}[parseparts $token $value] } content-id { setinternal $token $mixed $value } content-type { if {[exists $token content-type]} { error [list {multiple Content-Type fields starting with} \ $vline] } set x [parsetype $token $value] setinternal $token Content-Type {*}$x } content-md5 { } content-transfer-encoding { if { $state(encoding) ne {} && $state(encoding) ne [string tolower $value] } { error [list [list multiple Content-Transfer-Encoding \ fields starting with] $vline] } set state(encoding) [string tolower $value] } mime-version { set state(version) $value } default { set_ $token $mixed $value -mode append } } if {$blankP} { break } set vline $line } } proc ::mime::header::parseparams token { # FRINK: nocheck upvar 0 $token state set params {} while 1 { switch [parselexeme $token] { LX_END { return [processparams $params[set params {}]] } LX_SEMICOLON { if {[dict size $params]} { continue } else { error [list {expecting attribute} not $state(buffer)] } } LX_ATOM { } default { error [list {expecting attribute} not $state(buffer)] } } set attribute [string tolower $state(buffer)] if {[parselexeme $token] ne {LX_EQUALS}} { error [list expecting = found $state(buffer)] } switch [parselexeme $token] { LX_ATOM { } LX_QSTRING { set state(buffer) [ string range $state(buffer) 1 [ expr {[string length $state(buffer)] - 2}]] set state(buffer) [unquote $state(buffer)] } default { error [list expecting value found $state(buffer)] } } dict set params $attribute $state(buffer) } } proc ::mime::header::parseparts {token value} { variable token_re upvar 0 $token state if {![regexp $token_re $value match type]} { error [list {expected disposition-type}] } variable typetokenL variable typelexemeL set value [string range $value[set value {}] [string length $match] end] set state(input) $value set state(buffer) {} set state(lastC) LX_END set state(comment) {} set state(tokenL) $typetokenL set state(lexemeL) $typelexemeL set code [catch {parseparams $token} result copts] unset {*}{ state(input) state(buffer) state(lastC) state(comment) state(tokenL) state(lexemeL) } return -options $copts [list $type $result] } # ::mime::header::parsetype -- # # Parses the string passed in and identifies the content-type and # params strings. # # Arguments: # token The MIME token to parse. # string The content-type string that should be parsed. # # Results: # Returns the content and params for the string as a two element # tcl list. proc ::mime::header::parsetype {token string} { # FRINK: nocheck upvar 0 $token state variable typetokenL variable typelexemeL set state(input) $string set state(buffer) {} set state(lastC) LX_END set state(comment) {} set state(tokenL) $typetokenL set state(lexemeL) $typelexemeL catch {parsetypeaux $token} result copts unset {*}{ state(input) state(buffer) state(lastC) state(comment) state(tokenL) state(lexemeL) } return -options $copts $result } # ::mime::header::parsetypeaux -- # # A helper function for mime::parsetype. Parses the specified # string looking for the content type and params. # # Arguments: # token The MIME token to parse. # string The content-type string that should be parsed. # # Results: # Returns the content and params for the string as a two element # tcl list. proc ::mime::header::parsetypeaux token { # FRINK: nocheck upvar 0 $token state set params {} if {[parselexeme $token] ne {LX_ATOM}} { error [list expecting type found $state(buffer)] } set type [string tolower $state(buffer)] switch [parselexeme $token] { LX_SOLIDUS { } LX_END { if {$type ne {message}} { error [list expecting type/subtype found $type] } return [list message/rfc822 {}] } default { error [list expecting / found $state(buffer)] } } if {[parselexeme $token] ne {LX_ATOM}} { error [list expecting subtype found $state(buffer)] } append type [string tolower /$state(buffer)] switch [parselexeme $token] { LX_END { } LX_SEMICOLON { set params [parseparams $token] } default { error [list expecting {; or end} found $state(buffer)] } } list $type $params } proc ::mime::header::processparams params { set info {} foreach key [lsort -dictionary [dict keys $params]] { set pvalue [dict get $params $key] # a trailing asterisk is ignored if this is not the first field in an # identically-named series # this expression can't fail regexp {^([^*]+?)(?:([*])([0-9]+))?([*])?$} $key -> name star1 counter star2 dict update info $name dict1 { if {![info exists dict1]} { set dict1 {} } dict update dict1 encoding encoding value value { if {$star1 ne {}} { if {$star2 ne {} || $counter eq {}} { if {![regexp {^([^']*)'([^']*)'(.*)$} $pvalue \ -> charset lang pvalue]} { error [list [list malformed language information in \ extended parameter name]] } if {$charset ne {}} { set encoding [reversemapencoding $charset] } } } append value $pvalue } } } set params {} dict for {key pinfo} $info[set info {}] { dict update pinfo encoding encoding value value {} if {[info exists encoding]} { set value [string map {% {\x}} $value[set value {}]] set value [subst -novariables -nocommands $value[set value {}]] set value [::encoding convertfrom $encoding $value] } dict set params $key $value } return $params } proc ::mime::header::serialize {name value params} { variable notattchar_re set lname [string tolower $name] # to do: check key for conformance # to do: properly quote/process $value for interpolation if {[regexp {[^\x21-\x39\x3b-\x7e]} $name]} { error [ list {non-printing character or colon character in header name} $name] } if {[regexp {[^\t\x20-\x7e]} $value]} { error [ list {non-printing character in header value}] } switch $lname { content-id - message-id { set value <$value> } } set res "$name: $value" if {[llength $params] % 2} { set extra [lindex $params end] set params [lreplace $params[set params {}] end end] } else { set extra {} } foreach {key value} $params { if {[regexp $notattchar_re $key]} { error [list {illegal character found in attribute name}] } set len [expr {[string length $key]} + 1 + [string length $value]] # save one byte for the folding white space continuation space # and two bytes for "; " if {$len > 73 || ![regexp {[^-!#$%&'*+,.\w`~^@{}|]+$} $value]} { # save two bytes for the quotes if {$len <= 71 && ![regexp {[^\x20-\x7e]} $value]} { set value "[string map [list \\ \\\\ \" \\\"] $value[set value {}]]" append res "\n\t; $key=$value" } else { set value [::encoding convertto utf-8 $value] regsub -all -- $notattchar_re $value {[format %%%02X [scan "\\&" %c]]} value set value [subst -novariables $value] set partnum 0 set start 0 set param $key*$partnum*=utf-8'' while {$start < [string length $value]} { # subtract one from the limit to ensure that at least one byte # is included in the part value if {[string length $param] > 72} { error [list {parameter name is too long}] } set end [expr {$start + 72 - [string length $param]}] set part [string range $value $start $end] incr start [string length $part] append res "\n\t; $param$part" set param $key*$partnum= incr partnum } } } else { append res "\n\t; $key=$value" } } foreach item $extra { append res "\n\t; $item" } return $res } # ::mime::header::set -- # # mime::header::set writes, appends to, or deletes the value associated # with a key in the header. # # The value for -mode is one of: # # write: the key/value is either created or overwritten (the # default); # # append: a new value is appended for the key (creating it as # necessary); or, # # delete: all values associated with the key are removed (the # "value" parameter is ignored). # # Regardless, mime::setheader returns the previous value associated # with the key. # # Arguments: # token The MIME token to parse. # key The name of the key whose value should be set. # value The value for the header key to be set to. # ?params? A dictionary of parameters for the header. # ?args? An optional argument of the form: # ?-mode "write" | "append" | "delete"? # # Results: # Returns previous value associated with the specified key. proc ::mime::header::set_ {token key value args} { variable internal # FRINK: nocheck upvar 0 $token state upvar 0 \ state(contentid) contentid \ state(contentidlower) contentidlower \ state(header) header \ state(headerinternal) headerinternal \ state(headerinternallower) headerinternallower \ state(headerlower) headerlower \ state(messageid) messageid \ state(messageidlower) messageidlower parse $token set params {} switch [llength $args] { 1 - 3 { set args [lassign $args[set args {}] params] } 0 - 2 { # carry on } default { error [list {wrong # args}] } } array set options [list -mode write] array set options {} dict for {opt val} $args { switch $opt { -mode { set options($opt) $val } default { error [list {unknon option} $opt] } } } set lower [string tolower $key] set result {} switch $options(-mode) { append - write { switch $lower { content-md5 - content-transfer-encoding - mime-version - content-type { if {!$internal} { switch $lower { default { if {[exists $token $lower]} { lassign [get $token $lower] values params1 if {$value ni $values} { error "key $key may not be set" } } } } } switch $lower { content-type { if {[string match multipart/* $value] && ![dict exists $params boundary] } { dict set params boundary [boundary] } } default { #carry on } } } } if {$options(-mode) eq {write}} { if {[dict exists $header $key]} { dunset header $key } if {[dict exists $headerlower $lower]} { dunset headerlower $lower } if {[dict exists headerinternal $key]} { dunset headerinternal $key } if {[dict exists $headerinternallower $lower]} { dunset headerinternallower $lower } } set newval [list $value $params] if {$internal} { switch $lower { content-id { lappend contentid $key $newval lappend contentidlower $lower $newval } message-id { lappend messageid $key $newval lappend messageidlower $lower $newval } default { lappend headerinternal $key $newval lappend headerinternallower $lower $newval } } } else { lappend header $key $newval lappend headerlower $lower $newval } } delete { dunset headerlower $lower dunset headerinternallower $lower dunset header $key dunset headerinternal $key } default { error "unknown value for -mode $options(-mode)" } } return $result } proc ::mime::header::setinternal args { variable internal 1 try { set_ {*}$args } finally { set internal 0 } } # ::mime::.new -- # # the public interface for initializeaux proc ::mime::.new args { variable mime if {[llength $args] % 2} { set args [lassign $args[set args {}] name] } elseif {[llength $args]} { error [list {wrong # args}] } else { set name {} } set mimeid [incr mime(uid)] set token [namespace current]::$mimeid if {$name eq {}} { set name $token } elseif {![string match ::* $name]} { set name [uplevel 1 {namespace current}]::$name } set cookiecmd [namespace current]::${mimeid}_cookie namespace ensemble create -command $cookiecmd -map [list \ delete [list cookie_delete $name] \ set [list cookie_set $name] ] set headercmd [namespace current]::${mimeid}_header namespace ensemble create -command $headercmd -map [list \ get [list header::get $name] \ exists [list header::exists $token] \ parse [list header::parse $token] \ set [list header::set_ $token] \ serialize header::serialize \ setinternal [list header::setinternal $token] ] namespace ensemble create -command $name -map [list \ .destroy [list .destroy $token] \ body [list body $name] \ contenttype [list contenttype $name] \ cookie [list $cookiecmd] \ datetime [list datetime $token] \ field_decode [list field_decode $token] \ header [list $headercmd] \ mapencoding [list mapencoding $token] \ qp [list qp $token] \ parseaddress [list parseaddress $token] \ parsepart [list parsepart $name] \ property [list property $name] \ reversemapencoding [list reversemapencoding $token] \ serialize [list serialize $name] \ setheader [list setheader $token] \ token [list ::lindex $token] \ uniqueID [list uniqueID $token] \ word_decode [list word_decode $token] \ word_encode [list word_encode $token] ] trace add command $name delete [list apply [list { token cookiecmd headercmd old new op} { ::mime::.destroy $token rename $cookiecmd {} rename $headercmd {} }] $token $cookiecmd $headercmd] # FRINK: nocheck upvar 0 $token state set state(ensemble) $name if {[catch {uplevel 1 [ list mime::initializeaux $name {*}$args]} result eopts]} { catch {mime::.destroy $token -subordinates dynamic} return -options $eopts $result } return $name } # ::mime::initializeaux -- # # Creates a MIME part and returns the MIME token for that part. # # Arguments: # args Args can be any one of the following: # ?-canonical type/subtype # ?-params {?key value? ...} # ?-encoding value? # ?-headers {?key value? ...} # ?-spec ?mime | cgi | http? # (-chan value | -parts {token1 ... tokenN}) # # If the -canonical option is present, then the body is in # canonical (raw) form and is found by consulting either the, # -chan, or -parts option. # # -header # a dictionary of headers # with possibliy-redundant keys # # -params # a dictionary of parameters # with possibly-redundant keys # # # Also, -encoding, if present, specifies the # "Content-Transfer-Encoding" when copying the body. # # If the -canonical option is not present, then the MIME part # contained in -chan option is parsed, # dynamically generating subordinates as appropriate. # # Results: # An initialized mime token. proc ::mime::initializeaux {_ args} { set token [$_ token] variable channels # FRINK: nocheck upvar 0 $token state upvar 0 state(canonicalP) canonicalP state(params) params \ state(relax) relax set ipnuts 0 set params {} set state(addcontentid) 1 set state(addmessageid) 1 set state(addmimeversion) 1 # contains the decoded message body set state(bodychan) {} set state(bodydecoded) 0 set state(bodyparsed) 0 set state(dynamic) {} set canonicalP 0 set state(closechan) 1 set state(contentid) {} set state(contentidlower) {} set state(encoding) {} set state(encodingdone) 0 set state(eof) 0 set state(header) {} set state(headerinternal) {} set state(headerinternallower) {} set state(headerlower) {} set state(headerparsed) 0 set state(isstring) 0 set relax [dict create finalboundary 0] set state(messageid) {} set state(messageidlower) {} set state(root) $token set state(sawclosing) 0 set state(spec) mime set state(size) 0 set state(usemem) 0 set state(version) 1.0 set state(warnings) {} set userparams 0 set argc [llength $args] for {set argx 0} {$argx < $argc} {incr argx} { set option [lindex $args $argx] if {[incr argx] >= $argc} { error "missing argument to $option" } set value [lindex $args $argx] switch $option { -addcontentid { set state(addcontentid) [expr {!!$value}] } -addmessageid { set state(addmessageid) [expr {!!$value}] } -addmimeversion { set state(addmimeversion) [expr {!!$value}] } -boundary { set state(boundary) $value } -canonical { set canonicalP 1 set type [string tolower $value] } -chan { checkinputs addchan $token [uplevel 1 [list namespace which $value]] } -close { set state(closechan) [expr {!!$value}] } -encoding { set value [string tolower $value[set value {}]] switch $value { 7bit - 8bit - binary - quoted-printable - base64 { } default { error "unknown value for -encoding $state(encoding)" } } set state(encoding) [string tolower $value] } -file { checkinputs addchan $token [tcllib::chan::base .new [ info cmdcount]_chan [open $value]] } -headers { # process headers later in order to assure that content-id and # content-type occur first if {[info exists headers]} { error [list {-headers option occurred more than once}] } if {[llength $value] % 2} { error [list -headers expects a dictionary] } set headers $value } -params { if {$userparams} { error [list {-params can only be provided once}] } set userparams 1 if {[llength $value] % 2} { error [list -params expects a dictionary] } foreach {mixed pvalue} $value { set lower [string tolower $mixed] if {[dict exists params $lower]} { error "the $mixed parameter may be specified at most once" } dict set params $lower $pvalue } } -parts { checkinputs set canonicalP 1 set state(parts) $value } -relax { relax $token $value 1 } -root { # the following are internal options set state(root) $value } -spec { switch $value { cgi - http { set state(addcontentid) 0 set state(addmimeversion) 0 set state(addmessageid) 0 set state(spec) http } mime { set state(addcontentid) 1 set state(addmimeversion) 1 set state(spec) mime } default { error [list {unknown protocol}] } } } -strict { relax $token $value [expr {!$value}] } -string { checkinputs addchan $token [tcllib::chan::base .new [ info cmdcount]_chan [::tcl::chan::string $value]] } -usemem { set state(usemem) [expr {!!$value}] } default { error [list {unknown option} $option] } } } if {![info exists inputs]} { error [list {specify exactly one of} {-chan -file -parts -string}] } if {$canonicalP} { if {![info exists type]} { set type multipart/mixed } header::setinternal $token Content-Type $type $params if {[info exists headers]} { foreach {name hvalue} $headers { set lname [string tolower $name] if {$lname eq {content-type}} { error [list {use -canonical instead of -headers} $hkey $name] } if {$lname eq {content-transfer-encoding}} { error [list {use -encoding instead of -headers} $hkey $name] } if {$lname in {content-md5 mime-version}} { error [list {don't go there...}] } header::setinternal $token $name $hvalue } } lassign [$_ header get content-type] content dummy if {[info exists state(parts)]} { switch -glob $content { text/* - image/* - audio/* - video/* { error "-canonical $content and -parts do not mix" } default { if {$state(encoding) ne {}} { error "-encoding and -parts do not mix" } } } } set state(version) 1.0 return } if {[dict size $params]} { error "-param requires -canonical" } if {$state(encoding) ne {}} { error "-encoding requires -canonical" } if {[info exists headers]} { error "-header requires -canonical" } } proc mime::makeseekable token { upvar 0 $token state upvar 0 state(bodychan) bodychan state(fd) inputchan set chan2 [::tcllib::chan::base [info cmdcount]_chan [file tempfile]] chan configure $chan2 -translation binary chan copy $inputchan $chan2 incr size [tell $chan2] seek $chan2 0 close $inputchan set inputchan [::tcllib::chan::base [info cmdcount]_chan $chan2] return } # ::mime::mapencoding -- # # mime::mapencodings maps tcl encodings onto the proper names for their # MIME charset type. This is only done for encodings whose charset types # were known. The remaining encodings return {} for now. # # Arguments: # enc The tcl encoding to map. # # Results: # Returns the MIME charset type for the specified tcl encoding, or {} # if none is known. proc ::mime::mapencoding {enc} { variable encodings if {[info exists encodings($enc)]} { return $encodings($enc) } return {} } # ::mime::parsepart -- # # Parses the MIME headers and attempts to break up the message # into its various parts, creating a MIME token for each part. # # Arguments: # token The MIME token to parse. # # Results: # Throws an error if it has problems parsing the MIME token, # otherwise it just sets up the appropriate variables. proc ::mime::parsepart _ { set token [$_ token] upvar 0 $token state if {$state(canonicalP) || $state(bodyparsed)} { return } set state(bodyparsed) 1 parsepartaux $_ } proc ::mime::parsepartaux _ { set token [$_ token] # FRINK: nocheck upvar 0 $token state upvar 0 state(bodychan) bodychan state(eof) eof \ state(fd) fd state(size) size state(usemem) usemem state(relax) relax header::parse $token # although rfc 2045 5.2 defines a default treatment for content without a # type, don't automatically add an explicit content-type field #if {![header::exists $token content-type]} { # # rfc 2045 5.2 # header::setinternal $token Content-Type text/plain [ # dict create charset us-ascii] #} lassign [$_ contenttype] content params if {$usemem} { set bodychan [tcllib::chan::base .new [info cmdcount]_bodychan [ ::tcl::chan::memchan]] } else { set bodychan [tcllib::chan::base .new [info cmdcount]_bodychan] tcllib::chan::getslimit $bodychan $bodychan .init [file tempfile] } if {[dict exists $params charset]} { set charset [reversemapencoding [dict get $params charset]] if {$charset eq {}} { upvar 0 state(warnings) warnings lappend warnings [list {unknown charset} [ dict get $params charset] {using binary translation instead}] # but still do line automatic translation $fd configure -encoding binary -translation auto } else { $fd configure -encoding [reversemapencoding [dict get $params charset]] } } $bodychan configure -translation binary if {[info exists state(boundary)]} { set gets [list mimegets $token line] set iseof {$eof} } else { set gets [list $fd gets line] set iseof {[$fd eof] || $eof} } if {[string match multipart/* $content]} { set state(parts) {} dict update params boundary boundary {} if {![info exists state(boundary)]} { if {![info exists boundary]} { error "boundary parameter is missing in $content" } if {[string trim $boundary] eq {}} { error "boundary parameter is empty in $content" } } while 1 { if $iseof { break } if {![llength $state(parts)]} { set x [{*}$gets] if {$x == -1} { break } } if {[string first --$boundary-- $line] >= 0} { # No starting boundary was seen prior to the terminating boundary. # Interpret this to mean there are no more parts, and also attempt # to make a part from data already seen. # Covered by by test case mime-3.7, using "badmail1.txt". set state(sawclosing) 1 $bodychan puts $line $bodychan seek 0 set child [.new {} -chan $bodychan \ -root $state(root) -boundary $boundary -usemem $usemem] $child parsepart lappend state(parts) $child lappend state(dynamic) $child $child header setinternal Content-Type application/octet-stream break } elseif {[llength $state(parts)] || [string first --$boundary $line] == 0} { # either just saw the first boundary or saw a boundary between parts # do not brace this expression if $iseof { # either saw the closing boundary or reached the end of the file break } elseif {[string first --$boundary-- $line] >= 0} { set state(sawclosing) 1 break } else { #mimegets returned 0 because it found a border set child [.new {} -chan $fd \ -root $state(root) -boundary $boundary -usemem $usemem] $child parsepart lappend state(parts) $child lappend state(dynamic) $child upvar 0 $child childstate set state(sawclosing) $childstate(sawclosing) if {$childstate(eof)} break } } else { # Accumulate data in case the terminating boundary occurs starting # boundary was found, so that a part can be generated from data # seen so far. if $iseof { $bodychan puts -nonewline $line } else { $bodychan puts $line } set size [expr {$size + [ string length $line] + 1}] } } if {!$state(sawclosing) && ![dict get $relax finalboundary]} { error {end-of-string encountered while parsing multipart/form-data} } } else { if {[info exists state(boundary)]} { while 1 { set x [{*}$gets] if {$x == -1} { break } else { if {[incr linesout] > 1} { $bodychan puts -nonewline \n$line } else { $bodychan puts -nonewline $line } set size [expr {$size + [ string length $line] + 1}] } } } else { $fd copy [$bodychan configure -chan] set size [$bodychan tell] } $bodychan seek 0 if {[string match message/* $content]} { # FRINK: nocheck setencoding $token $bodychan setcharset $_ $bodychan set child [.new {} -chan $bodychan -usemem $usemem] lappend state(parts) $child lappend state(dynamic) $child $child parsepart } else { # this is undtrusted data, so keep the getslimit enabled on the # assumption that no one else wants to get hit by a long-line # attack either. #$bodychan configure -getslimit -1 } } return } # ::mime::property -- # # mime::property returns the properties of a MIME part. # # The properties are: # # property value # ======== ===== # content the type/subtype describing the content # encoding the "Content-Transfer-Encoding" # params a list of "Content-Type" parameters # parts a list of tokens for the part's subordinates # size the approximate size of the content {before decoding} # # The "parts" property is present only if the MIME part has # subordinates. # # If mime::property is invoked with the name of a specific # property, then the corresponding value is returned; instead, if # -names is specified, a list of all properties is returned; # otherwise, a dictionary of properties is returned. # # Arguments: # token The MIME token to parse. # property One of 'content', 'encoding', 'params', 'parts', and # 'size'. Defaults to returning a dictionary of # properties. # # Results: # Returns the properties of a MIME part proc ::mime::property {_ {property {}}} { set token [$_ token] # FRINK: nocheck upvar 0 $token state $_ parsepart lassign [$_ contenttype] content params switch $property { {} { array set properties [list content $content \ encoding $state(encoding) \ params $params \ size [getsize $_]] if {[info exists state(parts)]} { set properties(parts) $state(parts) } return [array get properties] } -names { set names [list content encoding params] if {[info exists state(parts)]} { lappend names parts } lappend nams size return $names } content - params { return [set $property] } encoding { return $state($property) } parts { if {![info exists state(parts)]} { error [list not a multipart message] } return $state(parts) } size { return [getsize $_] } default { error [list {unknown property} $property] } } } # ::mime::parseaddress -- # # This was originally written circa 1982 in C. we're still using it # because it recognizes virtually every buggy address syntax ever # generated! # # mime::parseaddress takes a string containing one or more 822-style # address specifications and returns a list of dictionaries, for each # address specified in the argument. # # Each dictionary contains these properties: # # property value # ======== ===== # address local@domain # comment 822-style comment # domain the domain part (rhs) # error non-empty on a parse error # group this address begins a group # friendly user-friendly rendering # local the local part (lhs) # memberP this address belongs to a group # phrase the phrase part # proper 822-style address specification # route 822-style route specification (obsolete) # # Note that one or more of these properties may be empty. # # Arguments: # string The address string to parse # # Results: # Returns a list of dictionaries, one element for each address # specified in the argument. proc ::mime::parseaddress {string args} { variable mime set token [namespace current]::[incr mime(uid)] # FRINK: nocheck upvar 0 $token state if {[llength $args]} { set string2 [lindex $args end] set args [list $string {*}[lrange $args 0 end-1]] set string $string2 } dict for {opt val} $args { switch $opt { hostname { set state(default_host) $val } } } catch {mime::parseaddressaux $token $string} result copts foreach name [array names state] { unset state($name) } # FRINK: nocheck catch {unset $token} return -options $copts $result } # ::mime::parseaddressaux -- # # This was originally written circa 1982 in C. we're still using it # because it recognizes virtually every buggy address syntax ever # generated! # # mime::parseaddressaux does the actually parsing for mime::parseaddress # # Each dictionary contains these properties: # # property value # ======== ===== # address local@domain # comment 822-style comment # domain the domain part (rhs) # error non-empty on a parse error # group this address begins a group # friendly user-friendly rendering # local the local part (lhs) # memberP this address belongs to a group # phrase the phrase part # proper 822-style address specification # route 822-style route specification (obsolete) # # Note that one or more of these properties may be empty. # # Arguments: # token The MIME token to work from. # string The address string to parse # # Results: # Returns a list of dictionaries, one for each address specified in the # argument. proc ::mime::parseaddressaux {token string} { # FRINK: nocheck upvar 0 $token state variable addrtokenL variable addrlexemeL set state(input) $string set state(glevel) 0 set state(buffer) {} set state(lastC) LX_END set state(tokenL) $addrtokenL set state(lexemeL) $addrlexemeL set result {} while {[addr_next $token]} { if {[set tail $state(domain)] ne {}} { set tail @$state(domain) } else { if {![info exists state(default_host)]} { set state(default_host) [info hostname] } set tail @$state(default_host) } if {[set address $state(local)] ne {}} { #TODO: this path is not covered by tests append address $tail } if {$state(phrase) ne {}} { #TODO: this path is not covered by tests set state(phrase) [string trim $state(phrase) \"] foreach t $state(tokenL) { if {[string first $t $state(phrase)] >= 0} { #TODO: is this quoting robust enough? set state(phrase) \"$state(phrase)\" break } } set proper "$state(phrase) <$address>" } else { set proper $address } if {[set friendly $state(phrase)] eq {}} { #TODO: this path is not covered by tests if {[set note $state(comment)] ne {}} { if {[string first ( $note] == 0} { set note [string trimleft [string range $note 1 end]] } if { [string last ) $note] == [set len [expr {[string length $note] - 1}]] } { set note [string range $note 0 [expr {$len - 1}]] } set friendly $note } if { $friendly eq {} && [set mbox $state(local)] ne {} } { #TODO: this path is not covered by tests set mbox [string trim $mbox \"] if {[string first / $mbox] != 0} { set friendly $mbox } elseif {[set friendly [addr_x400 $mbox PN]] ne {}} { } elseif { [set friendly [addr_x400 $mbox S]] ne {} && [set g [addr_x400 $mbox G]] ne {} } { set friendly "$g $friendly" } if {$friendly eq {}} { set friendly $mbox } } } set friendly [string trim $friendly \"] lappend result [list address $address \ comment $state(comment) \ domain $state(domain) \ error $state(error) \ friendly $friendly \ group $state(group) \ local $state(local) \ memberP $state(memberP) \ phrase $state(phrase) \ proper $proper \ route $state(route)] } unset {*}{ state(input) state(glevel) state(buffer) state(lastC) state(tokenL) state(lexemeL) } return $result } # ::mime::parselexeme -- # # Used to implement a lookahead parser. # # Arguments: # token The MIME token to operate on. # # Results: # Returns the next token found by the parser. proc ::mime::parselexeme token { # FRINK: nocheck upvar 0 $token state set state(input) [string trimleft $state(input)] set state(buffer) {} if {$state(input) eq {}} { set state(buffer) end-of-input return [set state(lastC) LX_END] } set c [string index $state(input) 0] set state(input) [string range $state(input) 1 end] if {$c eq {(}} { set noteP 0 set quoteP 0 while 1 { append state(buffer) $c #TODO: some of these paths are not covered by tests switch $c/$quoteP { (/0 { incr noteP } \\/0 { set quoteP 1 } |
︙ | ︙ | |||
3637 3638 3639 3640 3641 3642 3643 | if {$c eq "\""} { set firstP 1 set quoteP 0 while 1 { append state(buffer) $c | | | 3430 3431 3432 3433 3434 3435 3436 3437 3438 3439 3440 3441 3442 3443 3444 | if {$c eq "\""} { set firstP 1 set quoteP 0 while 1 { append state(buffer) $c switch $c/$quoteP { "\\/0" { set quoteP 1 } "\"/0" { if {!$firstP} { return [set state(lastC) LX_QSTRING] |
︙ | ︙ | |||
3668 3669 3670 3671 3672 3673 3674 | if {$c eq {[}} { set quoteP 0 while 1 { append state(buffer) $c | | | 3461 3462 3463 3464 3465 3466 3467 3468 3469 3470 3471 3472 3473 3474 3475 | if {$c eq {[}} { set quoteP 0 while 1 { append state(buffer) $c switch $c/$quoteP { \\/0 { set quoteP 1 } ]/0 { return [set state(lastC) LX_DLITERAL] } |
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3692 3693 3694 3695 3696 3697 3698 | } set state(input) [string range $state(input) 1 end] } } if {[set x [lsearch -exact $state(tokenL) $c]] >= 0} { append state(buffer) $c | < | | < < < < < < < < < < < < < < < < < < < < < < | < > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 3485 3486 3487 3488 3489 3490 3491 3492 3493 3494 3495 3496 3497 3498 3499 3500 3501 3502 3503 3504 3505 3506 3507 3508 3509 3510 3511 3512 3513 3514 3515 3516 3517 3518 3519 3520 3521 3522 3523 3524 3525 3526 3527 3528 3529 3530 3531 3532 3533 3534 3535 3536 3537 3538 3539 3540 3541 3542 3543 3544 3545 3546 3547 3548 3549 3550 3551 3552 3553 3554 3555 3556 3557 3558 3559 3560 3561 3562 3563 3564 3565 3566 3567 3568 3569 3570 3571 3572 3573 3574 3575 3576 3577 3578 3579 3580 3581 3582 3583 3584 3585 3586 3587 3588 3589 3590 3591 3592 3593 3594 3595 3596 3597 3598 3599 3600 3601 3602 3603 3604 3605 3606 3607 3608 3609 3610 3611 3612 3613 3614 3615 3616 3617 3618 3619 3620 3621 3622 3623 3624 3625 3626 3627 3628 3629 3630 3631 3632 3633 3634 3635 3636 3637 3638 3639 3640 3641 3642 3643 3644 3645 3646 3647 3648 3649 3650 3651 3652 3653 3654 3655 3656 3657 3658 3659 3660 3661 3662 3663 3664 3665 3666 3667 3668 3669 3670 3671 3672 3673 3674 3675 3676 3677 3678 3679 3680 3681 3682 3683 3684 3685 3686 3687 3688 3689 3690 3691 3692 3693 3694 3695 3696 3697 3698 3699 3700 3701 3702 3703 3704 3705 3706 3707 3708 3709 3710 3711 3712 3713 3714 3715 3716 3717 3718 3719 3720 3721 3722 3723 3724 3725 3726 3727 3728 3729 3730 3731 3732 3733 3734 3735 3736 3737 3738 3739 3740 3741 3742 3743 3744 3745 3746 3747 3748 3749 3750 3751 3752 3753 3754 3755 3756 3757 3758 3759 3760 3761 3762 3763 3764 3765 3766 3767 3768 3769 3770 3771 3772 3773 3774 3775 3776 3777 3778 3779 3780 3781 3782 3783 3784 3785 3786 3787 3788 3789 3790 3791 3792 3793 3794 3795 3796 3797 3798 3799 3800 3801 3802 3803 3804 3805 3806 3807 3808 3809 3810 3811 3812 3813 | } set state(input) [string range $state(input) 1 end] } } if {[set x [lsearch -exact $state(tokenL) $c]] >= 0} { append state(buffer) $c return [set state(lastC) [lindex $state(lexemeL) $x]] } while 1 { append state(buffer) $c switch [set c [string index $state(input) 0]] { {} - " " - "\t" - "\n" { break } default { if {[lsearch -exact $state(tokenL) $c] >= 0} { break } } } set state(input) [string range $state(input) 1 end] } return [set state(lastC) LX_ATOM] } # ::mime::reversemapencoding -- # # mime::reversemapencodings maps MIME charset types onto tcl encoding names. # Those that are unknown return {}. # # Arguments: # mimeType The MIME charset to convert into a tcl encoding type. # # Results: # Returns the tcl encoding name for the specified mime charset, or {} # if none is known. proc ::mime::reversemapencoding mimeType { variable reversemap set lmimeType [string tolower $mimeType] if {[info exists reversemap($lmimeType)]} { return $reversemap($lmimeType) } return {} } proc ::mime::relax {token args} { upvar 0 $token state upvar 0 state(relax) relax foreach {key val} $args { switch $key { all { dict set relax finalboundary 1 } finalboundary { dict set relax $key [expr {!!$val}] } default { error [list {unknown value for -relax} $key {should be one of} { all finalboundary }] } } } } # ::mime::serialize -- # # Serializes a message to a value or a channel. # # Arguments: # token The MIME token to parse. # channel The channel to copy the message to. # # Results: # Returns nothing unless an error is thrown while the message # is being written to the channel. proc ::mime::serialize {_ args} { set level 0 set chan {} dict for {arg val} $args { switch $arg { -chan { if {$val eq {}} { error [list {chan must not be the empty string}] } set chan [uplevel 1 [list ::namespace which $val]] } -level { set level [expr {$val + 0}] } default { error [list {unknown option} $arg] } } } if {$chan eq {}} { set token [$_ token] upvar 0 $token state set code [catch {serialize_value $_ $level} result copts] return -options $copts $result } else { return [serialize_chan $_ $chan $level] } } proc ::mime::serialize_chan {_ channel level} { set token [$_ token] # FRINK: nocheck upvar 0 $token state upvar 0 state(bodychan) bodychan $_ parsepart set result {} if {!$level && $state(addmimeversion)} { $channel puts [header::serialize MIME-Version $state(version) {}] } contentid $_ if {![header::exists $token content-id] && $state(addcontentid)} { header::setinternal $token Content-ID [contentid $_] } if {![header::exists $token message-id] && $state(addmessageid)} { header::setinternal $token Message-ID [messageid $_] } foreach {name value} [$_ header get] { $channel puts [header::serialize $name {*}$value] } set converter {} set encoding {} if {![info exists state(parts)]} { if {$state(canonicalP)} { set encoding [getTransferEncoding $_] if {$encoding ne {}} { $channel puts "Content-Transfer-Encoding: $encoding" } } } if {[info exists state(error)]} { unset state(error) } if {[info exists state(parts)]} { lassign [$_ contenttype] content params set boundary [dict get $params boundary] switch -glob $content { message/* { $channel puts {} foreach part $state(parts) { serialize_chan $part $channel 1 break } } default { # Note RFC 2046: See serialize_value for details. # # The boundary delimiter MUST occur at the # beginning of a line, i.e., following a CRLF, and # the initial CRLF is considered to be attached to # the boundary delimiter line rather than part of # the preceding part. # # - The above means that the CRLF before $boundary # is needed per the RFC, and the parts must not # have a closing CRLF of their own. See Tcllib bug # 1213527, and patch 1254934 for the problems when # both file/string branches added CRLF after the # body parts. foreach part $state(parts) { $channel puts \n--$boundary serialize_chan $part $channel 1 } $channel puts \n--$boundary-- } } } else { $channel puts {} if {$state(canonicalP)} { set transforms [setencoding $token $channel] $state(fd) seek 0 $state(fd) copy [$channel $ chan] while {[incr transforms -1] >= 0} { $channel $channel } } else { $state(bodychan) seek 0 $state(bodychan) copy [$channel $ chan] } } $channel flush if {[info exists state(error)]} { error $state(error) } } proc ::mime::serialize_value {_ level} { set chan [::tcllib::chan::base .new [info cmdcount]_serialize_value [ tcl::chan::memchan]] $chan configure -translation crlf serialize_chan $_ $chan $level $chan seek 0 $chan configure -translation binary set res [$chan read] $chan close return $res } proc ::mime::setencoding {token chan} { upvar 0 $token state set transforms 0 if {[info exists state(encoding)]} { switch $state(encoding) { base64 { package require tcl::transform::base64 ::tcl::transform::base64 [$chan configure -chan] incr transforms } quoted-printable { package require {tcl transform qp} ::tcl::transform::qp [$chan configure -chan] incr transforms } 7bit - 8bit - binary - {} { # Bugfix for [#477088] # Go ahead, leave chunk alone } default { error [list {Can't handle content encoding} $state(encoding)] } } } return $transforms } proc ::mime::setcharset {_ chan} { set token [$_ token] upvar 0 $token state lassign [$_ contenttype] content params if {[dict exists $params charset]} { set mcharset [dict get $params charset] } else { switch $state(spec) { cgi - http { set mcharset UTF-8 } mime - default { # mime set mcharset US-ASCII } } } set encoding [reversemapencoding $mcharset] if {$encoding eq {}} { $chan configure -translation binary } else { $chan configure -encoding $encoding } return } # ::mime::uniqueID -- # # Used to generate a 'globally unique identifier' for the content-id. # The id is built from the pid, the current time, the hostname, and # a counter that is incremented each time a message is sent. # # Arguments: # # Results: # Returns the a string that contains the globally unique identifier # that should be used for the Content-ID of an e-mail message. proc ::mime::uniqueID {} { set id [base64 -mode encode -- [ sha2::sha256 -bin [expr {rand()}][pid][clock clicks][array get state]]] return $id } # ::mime::unquote # # Removes any enclosing quotes and unquotes quoted pairs in a string. proc ::mime::unquote string { set qstring [string match "\"*" $string] regsub -all {\\(.)} $string[set string {}] {\1} string # this isn't exactly right because it doesn't validate that a quote at the # end of the string wsan't just replaced as part of a quoted pair. if {$qstring} { regexp {^["]?(.*?)["]?$} $string[set string {}] -> string # a quote for vim syntax coloring: " } return $string } # ::mime::word_encode -- # # Word encodes strings as per RFC 2047. # # Arguments: # charset The character set to encode the message to. |
︙ | ︙ | |||
3784 3785 3786 3787 3788 3789 3790 | # Returns a word encoded string. proc ::mime::word_encode {charset method string {args}} { variable encodings if {![info exists encodings($charset)]} { | | | | > | | 3822 3823 3824 3825 3826 3827 3828 3829 3830 3831 3832 3833 3834 3835 3836 3837 3838 3839 3840 3841 3842 3843 3844 3845 | # Returns a word encoded string. proc ::mime::word_encode {charset method string {args}} { variable encodings if {![info exists encodings($charset)]} { error [list {unknown charset} $charset] } if {$encodings($charset) eq {}} { error [list {invalid charset} $charset] } if {$method ne {base64} && $method ne {quoted-printable}} { error [list {unknown method} $method {must be one of} \ {base64 quoted-printable}] } # default to encoded and a length that won't make the Subject header to long array set options [list -charset_encoded 1 -maxlength 66] array set options $args if {$options(-charset_encoded)} { |
︙ | ︙ | |||
3815 3816 3817 3818 3819 3820 3821 | return {} } set string_bytelength [string bytelength $unencoded_string] # the 7 is for =?, ?Q?, ?= delimiters of the encoded word set maxlength [expr {$options(-maxlength) - [string length $encodings($charset)] - 7}] | | > | | | > | | | > | | | | | 3854 3855 3856 3857 3858 3859 3860 3861 3862 3863 3864 3865 3866 3867 3868 3869 3870 3871 3872 3873 3874 3875 3876 3877 3878 3879 3880 3881 3882 3883 3884 3885 3886 3887 3888 3889 3890 3891 3892 3893 3894 3895 3896 3897 3898 3899 3900 3901 3902 3903 3904 3905 3906 3907 3908 3909 3910 3911 3912 3913 3914 3915 3916 3917 3918 3919 | return {} } set string_bytelength [string bytelength $unencoded_string] # the 7 is for =?, ?Q?, ?= delimiters of the encoded word set maxlength [expr {$options(-maxlength) - [string length $encodings($charset)] - 7}] switch -exact $method { base64 { if {$maxlength < 4} { error [list maxlength $options(-maxlength) \ {too short for chosen charset and encoding}] } set count 0 set maxlength [expr {($maxlength / 4) * 3}] while {$count < $string_length} { set length 0 set enc_string {} while {$length < $maxlength && $count < $string_length} { set char [string range $unencoded_string $count $count] set enc_char [::encoding convertto $charset $char] if {$length + [string length $enc_char] > $maxlength} { set length $maxlength } else { append enc_string $enc_char incr count incr length [string length $enc_char] } } set encoded_word [string map [ list \n {}] [base64 -mode encode -- $enc_string]] append result "=?$encodings($charset)?B?$encoded_word?=\n " } # Trim off last "\n ", since the above code has the side-effect # of adding an extra "\n " to the encoded string. set result [string range $result 0 end-2] } quoted-printable { if {$maxlength < 1} { error [list maxlength $options(-maxlength) \ {too short for chosen charset and encoding}] } set count 0 while {$count < $string_length} { set length 0 set encoded_word {} while {$length < $maxlength && $count < $string_length} { set char [string range $unencoded_string $count $count] set enc_char [::encoding convertto $charset $char] set qp_enc_char [qp::encode $enc_char 1] set qp_enc_char_length [string length $qp_enc_char] if {$qp_enc_char_length > $maxlength} { error [list maxlength $options(-maxlength) \ {too short for chosen charset and encoding}] } if { $length + [string length $qp_enc_char] > $maxlength } { set length $maxlength } else { append encoded_word $qp_enc_char incr count incr length [string length $qp_enc_char] } } |
︙ | ︙ | |||
3887 3888 3889 3890 3891 3892 3893 3894 3895 3896 3897 3898 3899 3900 3901 3902 3903 3904 3905 3906 3907 3908 3909 | } default { error "Can't handle content encoding \"$method\"" } } return $result } # ::mime::word_decode -- # # Word decodes strings that have been word encoded as per RFC 2047. # # Arguments: # encoded The word encoded string to decode. # # Results: # Returns the string that has been decoded from the encoded message. proc ::mime::word_decode {encoded} { variable reversemap if {[regexp -- {=\?([^?]+)\?(.)\?([^?]*)\?=} $encoded \ | > | > | | | > | 3929 3930 3931 3932 3933 3934 3935 3936 3937 3938 3939 3940 3941 3942 3943 3944 3945 3946 3947 3948 3949 3950 3951 3952 3953 3954 3955 3956 3957 3958 3959 3960 3961 3962 3963 3964 3965 3966 3967 3968 3969 3970 3971 3972 3973 3974 3975 3976 3977 3978 3979 3980 3981 3982 3983 3984 3985 3986 3987 3988 3989 3990 3991 3992 3993 3994 3995 3996 3997 3998 3999 4000 4001 | } default { error "Can't handle content encoding \"$method\"" } } return $result } # ::mime::word_decode -- # # Word decodes strings that have been word encoded as per RFC 2047. # # Arguments: # encoded The word encoded string to decode. # # Results: # Returns the string that has been decoded from the encoded message. proc ::mime::word_decode {encoded} { variable reversemap if {[regexp -- {=\?([^?]+)\?(.)\?([^?]*)\?=} $encoded \ - charset method string] != 1 } { error "malformed word-encoded expression '$encoded'" } set enc [reversemapencoding $charset] if {$enc eq {}} { error "unknown charset '$charset'" } switch -exact $method { b - B { set method base64 } q - Q { set method quoted-printable } default { error "unknown method '$method', must be B or Q" } } switch -exact $method { base64 { set result [base64 -mode decode -- $string] } quoted-printable { set result [qp::decode $string 1] } {} { # Go ahead } default { error "Can't handle content encoding \"$method\"" } } return [list $enc $method $result] } # ::mime::field_decode -- # # Word decodes strings that have been word encoded as per RFC 2047 # and converts the string from the original encoding/charset to UTF. # # Arguments: |
︙ | ︙ | |||
3967 3968 3969 3970 3971 3972 3973 | # version with unencoded equivalents. # Sorry about the grotesque regexp. Most of it is sensible. One # notable fudge: the final $ is needed because of an apparent bug # in the regexp engine where the preceding .* otherwise becomes # non-greedy - perhaps because of the earlier ".*?", sigh. | | > > | > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 4012 4013 4014 4015 4016 4017 4018 4019 4020 4021 4022 4023 4024 4025 4026 4027 4028 4029 4030 4031 4032 4033 4034 4035 4036 4037 4038 4039 4040 4041 4042 4043 4044 4045 4046 4047 4048 4049 4050 4051 4052 4053 4054 4055 4056 4057 4058 4059 4060 4061 4062 4063 4064 4065 4066 4067 4068 4069 4070 4071 4072 4073 4074 4075 4076 4077 4078 4079 4080 4081 4082 4083 4084 4085 4086 4087 4088 4089 4090 | # version with unencoded equivalents. # Sorry about the grotesque regexp. Most of it is sensible. One # notable fudge: the final $ is needed because of an apparent bug # in the regexp engine where the preceding .* otherwise becomes # non-greedy - perhaps because of the earlier ".*?", sigh. while {[regexp {(.*?)(=\?(?:[^?]+)\?(?:.)\?(?:[^?]*)\?=)(.*)$} $field \ ignore prefix encoded field] } { # don't allow whitespace between encoded words per RFC 2047 if {{} ne $prefix} { if {![string is space $prefix]} { append result $prefix } } set decoded [word_decode $encoded] foreach {charset - string} $decoded break append result [::encoding convertfrom $charset $string] } append result $field return $result } namespace eval ::mime::header { ::apply [list {} { set saved [namespace eval [namespace parent] { namespace export }] namespace eval [namespace parent] { namespace export * } namespace import [namespace parent]::getTransferEncoding namespace import [namespace parent]::parselexeme namespace import [namespace parent]::reversemapencoding namespace import [namespace parent]::uniqueID namespace import [namespace parent]::unquote namespace eval [namespace parent] [ list namespace export -clear {*}$saved ] } [namespace current]] } ## One-Shot Initialization ::apply {{} { variable encList variable encAliasList variable reversemap variable timeformats foreach {enc mimeType} $encList { if {$mimeType eq {}} continue set reversemap([string tolower $mimeType]) $enc } foreach {enc mimeType} $encAliasList { set reversemap([string tolower $mimeType]) $enc } set formats1 { {%a, %d %b %Y %H:%M:%S %z} {%a, %d %b %Y %H:%M %z} {%a , %d %b %Y %H:%M:%S %z} {%a , %d %b %Y %H:%M %z} {%d %b %Y %H:%M:%S %z} {%d %b %Y %H:%M %z} } set timeformats [list {*}$formats1 {*}[string map {%Y %y} $formats1]] # Drop the helper variables unset encList encAliasList } ::mime} |