Re: [PATCH] send-email: improve RFC2047 quote parsing
Junio C Hamano gits...@pobox.com writes: Thomas Rast tr...@student.ethz.ch writes: This patch fixes the first two by doing a more careful decoding of the =AB outer quoting. Fixing the fundamental issues is left for a future, more intrusive, patch. What is this =AB thing? The two-hex-digits quoting in the style of MIME quoted-printable. I called it the outer quoting (RFC2047: encoding) because it serves to protect the bytes from transport damage; there is another encoding (RFC2047: character set) inside which is specified by the =?utf-8?...?= wrapper. BTW, note that we also only handle the Q outer quoting (quoted-printable). There is a B encoding, which your email in fact used in the Cc: header: Cc: [...] =?utf-8?B?SsO8cmdlbiBSw7xobGU=?= j...@online.de B means Base64, as you can probably guess from the looks of it. This is the easy part, fixed as per Junio's comment that it needs to use a .*? match for the contents, and with a test. What's the hard part? Do you mean the fundamentally cannot part? Yes, and by fundamentally I meant not without fixing something outside of this function, which I am too lazy to do at this time. ;-) -- Thomas Rast trast@{inf,student}.ethz.ch -- To unsubscribe from this list: send the line unsubscribe git in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[PATCH] send-email: improve RFC2047 quote parsing
The RFC2047 unquoting, used to parse email addresses in From and Cc headers, is broken in several ways: * It erroneously substitutes ' ' for '_' in *the whole* header, even outside the quoted field. [Noticed by Christoph.] * It is too liberal in its matching, and happily matches the start of one quoted chunk against the end of another, or even just something that looks like such an end. [Noticed by Junio.] * It fundamentally cannot cope with encodings that are not a superset of ASCII, nor several (incompatible) encodings in the same header. This patch fixes the first two by doing a more careful decoding of the =AB outer quoting. Fixing the fundamental issues is left for a future, more intrusive, patch. Noticed-by: Christoph Miebach christoph.mieb...@web.de Helped-by: Junio C Hamano gits...@pobox.com Signed-off-by: Thomas Rast tr...@student.ethz.ch --- This is the easy part, fixed as per Junio's comment that it needs to use a .*? match for the contents, and with a test. git-send-email.perl | 10 ++ t/t9001-send-email.sh | 13 + 2 files changed, 19 insertions(+), 4 deletions(-) diff --git a/git-send-email.perl b/git-send-email.perl index ef30c55..6647137 100755 --- a/git-send-email.perl +++ b/git-send-email.perl @@ -862,11 +862,13 @@ sub make_message_id { sub unquote_rfc2047 { local ($_) = @_; my $encoding; - if (s/=\?([^?]+)\?q\?(.*)\?=/$2/g) { + s{=\?([^?]+)\?q\?(.*?)\?=}{ $encoding = $1; - s/_/ /g; - s/=([0-9A-F]{2})/chr(hex($1))/eg; - } + my $e = $2; + $e =~ s/_/ /g; + $e =~ s/=([0-9A-F]{2})/chr(hex($1))/eg; + $e; + }eg; return wantarray ? ($_, $encoding) : $_; } diff --git a/t/t9001-send-email.sh b/t/t9001-send-email.sh index 8c12c65..0351228 100755 --- a/t/t9001-send-email.sh +++ b/t/t9001-send-email.sh @@ -841,6 +841,19 @@ test_expect_success $PREREQ '--compose adds MIME for utf8 subject' ' grep ^Subject: =?UTF-8?q?utf8-s=C3=BCbj=C3=ABct?= msgtxt1 ' +test_expect_success $PREREQ 'utf8 author is correctly passed on' ' + clean_fake_sendmail + test_commit weird_author + test_when_finished git reset --hard HEAD^ + git commit --amend --author Füñný Nâmé odd_?=m...@example.com + git format-patch --stdout -1 funny_name.patch + git send-email --from=Example nob...@example.com \ + --to=nob...@example.com \ + --smtp-server=$(pwd)/fake.sendmail \ + funny_name.patch + grep ^From: Füñný Nâmé odd_?=m...@example.com msgtxt1 +' + test_expect_success $PREREQ 'detects ambiguous reference/file conflict' ' echo master master git add master -- 1.7.12.rc0.434.gd809d0f -- To unsubscribe from this list: send the line unsubscribe git in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [PATCH] send-email: improve RFC2047 quote parsing
Thomas Rast tr...@student.ethz.ch writes: The RFC2047 unquoting, used to parse email addresses in From and Cc headers, is broken in several ways: * It erroneously substitutes ' ' for '_' in *the whole* header, even outside the quoted field. [Noticed by Christoph.] * It is too liberal in its matching, and happily matches the start of one quoted chunk against the end of another, or even just something that looks like such an end. [Noticed by Junio.] * It fundamentally cannot cope with encodings that are not a superset of ASCII, nor several (incompatible) encodings in the same header. This patch fixes the first two by doing a more careful decoding of the =AB outer quoting. Fixing the fundamental issues is left for a future, more intrusive, patch. What is this =AB thing? Noticed-by: Christoph Miebach christoph.mieb...@web.de Helped-by: Junio C Hamano gits...@pobox.com Signed-off-by: Thomas Rast tr...@student.ethz.ch --- This is the easy part, fixed as per Junio's comment that it needs to use a .*? match for the contents, and with a test. What's the hard part? Do you mean the fundamentally cannot part? Thanks. git-send-email.perl | 10 ++ t/t9001-send-email.sh | 13 + 2 files changed, 19 insertions(+), 4 deletions(-) diff --git a/git-send-email.perl b/git-send-email.perl index ef30c55..6647137 100755 --- a/git-send-email.perl +++ b/git-send-email.perl @@ -862,11 +862,13 @@ sub make_message_id { sub unquote_rfc2047 { local ($_) = @_; my $encoding; - if (s/=\?([^?]+)\?q\?(.*)\?=/$2/g) { + s{=\?([^?]+)\?q\?(.*?)\?=}{ $encoding = $1; - s/_/ /g; - s/=([0-9A-F]{2})/chr(hex($1))/eg; - } + my $e = $2; + $e =~ s/_/ /g; + $e =~ s/=([0-9A-F]{2})/chr(hex($1))/eg; + $e; + }eg; return wantarray ? ($_, $encoding) : $_; } diff --git a/t/t9001-send-email.sh b/t/t9001-send-email.sh index 8c12c65..0351228 100755 --- a/t/t9001-send-email.sh +++ b/t/t9001-send-email.sh @@ -841,6 +841,19 @@ test_expect_success $PREREQ '--compose adds MIME for utf8 subject' ' grep ^Subject: =?UTF-8?q?utf8-s=C3=BCbj=C3=ABct?= msgtxt1 ' +test_expect_success $PREREQ 'utf8 author is correctly passed on' ' + clean_fake_sendmail + test_commit weird_author + test_when_finished git reset --hard HEAD^ + git commit --amend --author Füñný Nâmé odd_?=m...@example.com + git format-patch --stdout -1 funny_name.patch + git send-email --from=Example nob...@example.com \ + --to=nob...@example.com \ + --smtp-server=$(pwd)/fake.sendmail \ + funny_name.patch + grep ^From: Füñný Nâmé odd_?=m...@example.com msgtxt1 +' + test_expect_success $PREREQ 'detects ambiguous reference/file conflict' ' echo master master git add master -- To unsubscribe from this list: send the line unsubscribe git in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html