git-send-email passes on an 8bit mail as-is even if it does not
declare a content-type. Because the user can edit email between
format-patch and send-email, such invalid mails are unfortunately not
very hard to come by.
Make git-send-email stop and ask about the encoding to use if it
encounters any such mail. Also provide a configuration setting to
permanently configure an encoding.
Signed-off-by: Thomas Rast <trast@xxxxxxxxxxxxxxx>
---
Junio C Hamano wrote:
> > * tr/send-email-8bit (2010-06-12) 1 commit
>
> If I am not misreading the patch, it does not seem to stop the scanning of
> the "C-T-E:" header at the end of header; it should.
You're right. I fixed that in this version.
[I'm leaving for holidays tomorrow, so if there are more problems with
this patch (who knows) you'll have to hold it in pu for a while.]
Documentation/git-send-email.txt | 9 ++++
git-send-email.perl | 60 +++++++++++++++++++++++++++++
t/t9001-send-email.sh | 77 ++++++++++++++++++++++++++++++++++++++
3 files changed, 146 insertions(+), 0 deletions(-)
diff --git a/Documentation/git-send-email.txt b/Documentation/git-send-email.txt
index 3dfdc7c..e70d9bf 100644
--- a/Documentation/git-send-email.txt
+++ b/Documentation/git-send-email.txt
@@ -101,6 +101,15 @@ See the CONFIGURATION section for 'sendemail.multiedit'.
+
The --to option must be repeated for each user you want on the to list.
+--8bit-encoding=<encoding>::
+ When encountering a non-ASCII message or subject that does not
+ declare its encoding, add headers/quoting to indicate it is
+ encoded in <encoding>. Default is the value of the
+ 'sendemail.assume8bitEncoding'; if that is unspecified, this
+ will be prompted for if any non-ASCII files are encountered.
++
+Note that no attempts whatsoever are made to validate the encoding.
+
Sending
~~~~~~~
diff --git a/git-send-email.perl b/git-send-email.perl
index ce569a9..0db39b0 100755
--- a/git-send-email.perl
+++ b/git-send-email.perl
@@ -54,6 +54,7 @@ git send-email [options] <file | directory | rev-list options >
--in-reply-to <str> * Email "In-Reply-To:"
--annotate * Review each patch that will be sent in an editor.
--compose * Open an editor for introduction.
+ --8bit-encoding <str> * Encoding to assume 8bit mails if undeclared
Sending:
--envelope-sender <str> * Email envelope sender.
@@ -193,6 +194,7 @@ my ($smtp_server, $smtp_server_port, $smtp_authuser, $smtp_encryption);
my ($identity, $aliasfiletype, @alias_files, @smtp_host_parts);
my ($validate, $confirm);
my (@suppress_cc);
+my ($auto_8bit_encoding);
my ($debug_net_smtp) = 0; # Net::SMTP, see send_message()
@@ -223,6 +225,7 @@ my %config_settings = (
"multiedit" => \$multiedit,
"confirm" => \$confirm,
"from" => \$sender,
+ "assume8bitencoding" => \$auto_8bit_encoding,
);
# Help users prepare for 1.7.0
@@ -298,6 +301,7 @@ my $rc = GetOptions("sender|from=s" => \$sender,
"thread!" => \$thread,
"validate!" => \$validate,
"format-patch!" => \$format_patch,
+ "8bit-encoding=s" => \$auto_8bit_encoding,
);
unless ($rc) {
@@ -670,6 +674,35 @@ sub ask {
return undef;
}
+my %broken_encoding;
+
+sub file_declares_8bit_cte($) {
+ my $fn = shift;
+ open (my $fh, '<', $fn);
+ while (my $line = <$fh>) {
+ last if ($line =~ /^$/);
+ return 1 if ($line =~ /^Content-Transfer-Encoding: .*8bit.*$/);
+ }
+ close $fh;
+ return 0;
+}
+
+foreach my $f (@files) {
+ next unless (body_or_subject_has_nonascii($f)
+ && !file_declares_8bit_cte($f));
+ $broken_encoding{$f} = 1;
+}
+
+if (!defined $auto_8bit_encoding && scalar %broken_encoding) {
+ print "The following files are 8bit, but do not declare " .
+ "a Content-Transfer-Encoding.\n";
+ foreach my $f (sort keys %broken_encoding) {
+ print " $f\n";
+ }
+ $auto_8bit_encoding = ask("Which 8bit encoding should I declare [UTF-8]? ",
+ default => "UTF-8");
+}
+
my $prompting = 0;
if (!defined $sender) {
$sender = $repoauthor || $repocommitter || '';
@@ -1225,6 +1258,18 @@ foreach my $t (@files) {
or die "(cc-cmd) failed to close pipe to '$cc_cmd'";
}
+ if ($broken_encoding{$t} && !$has_content_type) {
+ $has_content_type = 1;
+ push @xh, "MIME-Version: 1.0",
+ "Content-Type: text/plain; charset=$auto_8bit_encoding",
+ "Content-Transfer-Encoding: 8bit";
+ $body_encoding = $auto_8bit_encoding;
+ }
+
+ if ($broken_encoding{$t} && !is_rfc2047_quoted($subject)) {
+ $subject = quote_rfc2047($subject, $auto_8bit_encoding);
+ }
+
if (defined $author and $author ne $sender) {
$message = "From: $author\n\n$message";
if (defined $author_encoding) {
@@ -1237,6 +1282,7 @@ foreach my $t (@files) {
}
}
else {
+ $has_content_type = 1;
push @xh,
'MIME-Version: 1.0',
"Content-Type: text/plain; charset=$author_encoding",
@@ -1314,3 +1360,17 @@ sub file_has_nonascii {
}
return 0;
}
+
+sub body_or_subject_has_nonascii {
+ my $fn = shift;
+ open(my $fh, '<', $fn)
+ or die "unable to open $fn: $!\n";
+ while (my $line = <$fh>) {
+ last if $line =~ /^$/;
+ return 1 if $line =~ /^Subject.*[^[:ascii:]]/;
+ }
+ while (my $line = <$fh>) {
+ return 1 if $line =~ /[^[:ascii:]]/;
+ }
+ return 0;
+}
diff --git a/t/t9001-send-email.sh b/t/t9001-send-email.sh
index 640b3d2..0b8a591 100755
--- a/t/t9001-send-email.sh
+++ b/t/t9001-send-email.sh
@@ -918,4 +918,81 @@ test_expect_success '--no-bcc overrides sendemail.bcc' '
! grep "RCPT TO:<other@xxxxxx>" stdout
'
+cat >email-using-8bit <<EOF
+From fe6ecc66ece37198fe5db91fa2fc41d9f4fe5cc4 Mon Sep 17 00:00:00 2001
+Message-Id: <bogus-message-id@xxxxxxxxxxx>
+From: author@xxxxxxxxxxx
+Date: Sat, 12 Jun 2010 15:53:58 +0200
+Subject: subject goes here
+
+Dieser deutsche Text enthält einen Umlaut!
+EOF
+
+cat >content-type-decl <<EOF
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+EOF
+
+test_expect_success 'asks about and fixes 8bit encodings' '
+ clean_fake_sendmail &&
+ echo |
+ git send-email --from=author@xxxxxxxxxxx --to=nobody@xxxxxxxxxxx \
+ --smtp-server="$(pwd)/fake.sendmail" \
+ email-using-8bit >stdout &&
+ grep "do not declare a Content-Transfer-Encoding" stdout &&
+ grep email-using-8bit stdout &&
+ grep "Which 8bit encoding" stdout &&
+ grep "Content\\|MIME" msgtxt1 >actual &&
+ test_cmp actual content-type-decl
+'
+
+test_expect_success 'sendemail.8bitEncoding works' '
+ clean_fake_sendmail &&
+ git config sendemail.assume8bitEncoding UTF-8 &&
+ echo bogus |
+ git send-email --from=author@xxxxxxxxxxx --to=nobody@xxxxxxxxxxx \
+ --smtp-server="$(pwd)/fake.sendmail" \
+ email-using-8bit >stdout &&
+ grep "Content\\|MIME" msgtxt1 >actual &&
+ test_cmp actual content-type-decl
+'
+
+test_expect_success '--8bit-encoding overrides sendemail.8bitEncoding' '
+ clean_fake_sendmail &&
+ git config sendemail.assume8bitEncoding "bogus too" &&
+ echo bogus |
+ git send-email --from=author@xxxxxxxxxxx --to=nobody@xxxxxxxxxxx \
+ --smtp-server="$(pwd)/fake.sendmail" \
+ --8bit-encoding=UTF-8 \
+ email-using-8bit >stdout &&
+ grep "Content\\|MIME" msgtxt1 >actual &&
+ test_cmp actual content-type-decl
+'
+
+cat >email-using-8bit <<EOF
+From fe6ecc66ece37198fe5db91fa2fc41d9f4fe5cc4 Mon Sep 17 00:00:00 2001
+Message-Id: <bogus-message-id@xxxxxxxxxxx>
+From: author@xxxxxxxxxxx
+Date: Sat, 12 Jun 2010 15:53:58 +0200
+Subject: Dieser Betreff enthält auch einen Umlaut!
+
+Nothing to see here.
+EOF
+
+cat >expected <<EOF
+Subject: =?UTF-8?q?Dieser=20Betreff=20enth=C3=A4lt=20auch=20einen=20Umlaut!?=
+EOF
+
+test_expect_success '--8bit-encoding also treats subject' '
+ clean_fake_sendmail &&
+ echo bogus |
+ git send-email --from=author@xxxxxxxxxxx --to=nobody@xxxxxxxxxxx \
+ --smtp-server="$(pwd)/fake.sendmail" \
+ --8bit-encoding=UTF-8 \
+ email-using-8bit >stdout &&
+ grep "Subject" msgtxt1 >actual &&
+ test_cmp expected actual
+'
+
test_done
--
1.7.1.635.g9a994
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