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| author |  Роман Донченко <dpb@corrigendum.ru> | 2014-12-14 18:59:46 +0300 |
|---|---|---|
| committer |  Junio C Hamano <gitster@pobox.com> | 2014-12-15 09:06:39 -0800 |
| commit | 11f70a7e29ff7167e89aad186d763a4b017e48d9 (patch) | |
| tree | 605fb0632611058e5766072451dfd17aa4920a04 | |
| parent | Merge branch 'maint-1.9' into maint-2.0 (diff) | |
| download | tgif-11f70a7e29ff7167e89aad186d763a4b017e48d9.tar.xz | |
send-email: align RFC 2047 decoding more closely with the spec
More specifically:
* Add "\" to the list of characters not allowed in a token (see RFC 2047
errata).
* Share regexes between unquote_rfc2047 and is_rfc2047_quoted. Besides
removing duplication, this also makes unquote_rfc2047 more stringent.
* Allow both "q" and "Q" to identify the encoding.
* Allow lowercase hexadecimal digits in the "Q" encoding.
And, more on the cosmetic side:
* Change the "encoded-text" regex to exclude rather than include characters,
for clarity and consistency with "token".
Signed-off-by: Роман Донченко <dpb@corrigendum.ru>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
| -rwxr-xr-x | git-send-email.perl | 30 |
1 files changed, 19 insertions, 11 deletions
diff --git a/git-send-email.perl b/git-send-email.perl index fdb0029b59..106c2b065d 100755 --- a/git-send-email.perl +++ b/git-send-email.perl @@ -143,6 +143,11 @@ my $have_mail_address = eval { require Mail::Address; 1 }; my $smtp; my $auth; +# Regexes for RFC 2047 productions. +my $re_token = qr/[^][()<>@,;:\\"\/?.= \000-\037\177-\377]+/; +my $re_encoded_text = qr/[^? \000-\037\177-\377]+/; +my $re_encoded_word = qr/=\?($re_token)\?($re_token)\?($re_encoded_text)\?=/; + # Variables we fill in automatically, or via prompting: my (@to,$no_to,@initial_to,@cc,$no_cc,@initial_cc,@bcclist,$no_bcc,@xh, $initial_reply_to,$initial_subject,@files, @@ -906,15 +911,20 @@ $time = time - scalar $#files; sub unquote_rfc2047 { local ($_) = @_; - my $encoding; - s{=\?([^?]+)\?q\?(.*?)\?=}{ - $encoding = $1; - my $e = $2; - $e =~ s/_/ /g; - $e =~ s/=([0-9A-F]{2})/chr(hex($1))/eg; - $e; + my $charset; + s{$re_encoded_word}{ + $charset = $1; + my $encoding = $2; + my $text = $3; + if ($encoding eq 'q' || $encoding eq 'Q') { + $text =~ s/_/ /g; + $text =~ s/=([0-9A-F]{2})/chr(hex($1))/egi; + $text; + } else { + $&; # other encodings not supported yet + } }eg; - return wantarray ? ($_, $encoding) : $_; + return wantarray ? ($_, $charset) : $_; } sub quote_rfc2047 { @@ -927,10 +937,8 @@ sub quote_rfc2047 { sub is_rfc2047_quoted { my $s = shift; - my $token = qr/[^][()<>@,;:"\/?.= \000-\037\177-\377]+/; - my $encoded_text = qr/[!->@-~]+/; length($s) <= 75 && - $s =~ m/^(?:"[[:ascii:]]*"|=\?$token\?$token\?$encoded_text\?=)$/o; + $s =~ m/^(?:"[[:ascii:]]*"|$re_encoded_word)$/o; } sub subject_needs_rfc2047_quoting { |