diff options
Diffstat (limited to 'git-send-email.perl')
| -rwxr-xr-x | git-send-email.perl | 95 |
1 files changed, 84 insertions, 11 deletions
diff --git a/git-send-email.perl b/git-send-email.perl index d612ae8729..111c981229 100755 --- a/git-send-email.perl +++ b/git-send-email.perl @@ -64,6 +64,8 @@ git send-email [options] <file | directory | rev-list options > --smtp-pass <str> * Password for SMTP-AUTH; not necessary. --smtp-encryption <str> * tls or ssl; anything else disables. --smtp-ssl * Deprecated. Use '--smtp-encryption ssl'. + --smtp-domain <str> * The domain name sent to HELO/EHLO handshake + --smtp-debug <0|1> * Disable, enable Net::SMTP debug. Automating: --identity <str> * Use the sendemail.<id> options. @@ -162,9 +164,12 @@ my $compose_filename; # Handle interactive edition of files. my $multiedit; -my $editor = Git::command_oneline('var', 'GIT_EDITOR'); +my $editor; sub do_edit { + if (!defined($editor)) { + $editor = Git::command_oneline('var', 'GIT_EDITOR'); + } if (defined($multiedit) && !$multiedit) { map { system('sh', '-c', $editor.' "$@"', $editor, $_); @@ -183,10 +188,12 @@ sub do_edit { # Variables with corresponding config settings my ($thread, $chain_reply_to, $suppress_from, $signed_off_by_cc, $cc_cmd); my ($smtp_server, $smtp_server_port, $smtp_authuser, $smtp_encryption); -my ($identity, $aliasfiletype, @alias_files, @smtp_host_parts); +my ($identity, $aliasfiletype, @alias_files, @smtp_host_parts, $smtp_domain); my ($validate, $confirm); my (@suppress_cc); +my ($debug_net_smtp) = 0; # Net::SMTP, see send_message() + my $not_set_by_user = "true but not set by the user"; my %config_bool_settings = ( @@ -203,6 +210,7 @@ my %config_settings = ( "smtpserverport" => \$smtp_server_port, "smtpuser" => \$smtp_authuser, "smtppass" => \$smtp_authpass, + "smtpdomain" => \$smtp_domain, "to" => \@to, "cc" => \@initial_cc, "cccmd" => \$cc_cmd, @@ -273,6 +281,8 @@ my $rc = GetOptions("sender|from=s" => \$sender, "smtp-pass:s" => \$smtp_authpass, "smtp-ssl" => sub { $smtp_encryption = 'ssl' }, "smtp-encryption=s" => \$smtp_encryption, + "smtp-debug:i" => \$debug_net_smtp, + "smtp-domain:s" => \$smtp_domain, "identity=s" => \$identity, "annotate" => \$annotate, "compose" => \$compose, @@ -750,8 +760,7 @@ sub extract_valid_address { # We'll setup a template for the message id, using the "from" address: my ($message_id_stamp, $message_id_serial); -sub make_message_id -{ +sub make_message_id { my $uniq; if (!defined $message_id_stamp) { $message_id_stamp = sprintf("%s-%s", time, $$); @@ -806,8 +815,7 @@ sub is_rfc2047_quoted { } # use the simplest quoting being able to handle the recipient -sub sanitize_address -{ +sub sanitize_address { my ($recipient) = @_; my ($recipient_name, $recipient_addr) = ($recipient =~ /^(.*?)\s*(<.*)/); @@ -836,12 +844,67 @@ sub sanitize_address } +# Returns the local Fully Qualified Domain Name (FQDN) if available. +# +# Tightly configured MTAa require that a caller sends a real DNS +# domain name that corresponds the IP address in the HELO/EHLO +# handshake. This is used to verify the connection and prevent +# spammers from trying to hide their identity. If the DNS and IP don't +# match, the receiveing MTA may deny the connection. +# +# Here is a deny example of Net::SMTP with the default "localhost.localdomain" +# +# Net::SMTP=GLOB(0x267ec28)>>> EHLO localhost.localdomain +# Net::SMTP=GLOB(0x267ec28)<<< 550 EHLO argument does not match calling host +# +# This maildomain*() code is based on ideas in Perl library Test::Reporter +# /usr/share/perl5/Test/Reporter/Mail/Util.pm ==> sub _maildomain () + +sub valid_fqdn { + my $domain = shift; + return !($^O eq 'darwin' && $domain =~ /\.local$/) && $domain =~ /\./; +} + +sub maildomain_net { + my $maildomain; + + if (eval { require Net::Domain; 1 }) { + my $domain = Net::Domain::domainname(); + $maildomain = $domain if valid_fqdn($domain); + } + + return $maildomain; +} + +sub maildomain_mta { + my $maildomain; + + if (eval { require Net::SMTP; 1 }) { + for my $host (qw(mailhost localhost)) { + my $smtp = Net::SMTP->new($host); + if (defined $smtp) { + my $domain = $smtp->domain; + $smtp->quit; + + $maildomain = $domain if valid_fqdn($domain); + + last if $maildomain; + } + } + } + + return $maildomain; +} + +sub maildomain { + return maildomain_net() || maildomain_mta() || 'localhost.localdomain'; +} + # Returns 1 if the message was sent, and 0 otherwise. # In actuality, the whole program dies when there # is an error sending a message. -sub send_message -{ +sub send_message { my @recipients = unique_email_list(@to); @cc = (grep { my $cc = extract_valid_address($_); not grep { $cc eq $_ } @recipients @@ -938,13 +1001,19 @@ X-Mailer: git-send-email $gitversion if ($smtp_encryption eq 'ssl') { $smtp_server_port ||= 465; # ssmtp require Net::SMTP::SSL; - $smtp ||= Net::SMTP::SSL->new($smtp_server, Port => $smtp_server_port); + $smtp_domain ||= maildomain(); + $smtp ||= Net::SMTP::SSL->new($smtp_server, + Hello => $smtp_domain, + Port => $smtp_server_port); } else { require Net::SMTP; + $smtp_domain ||= maildomain(); $smtp ||= Net::SMTP->new((defined $smtp_server_port) ? "$smtp_server:$smtp_server_port" - : $smtp_server); + : $smtp_server, + Hello => $smtp_domain, + Debug => $debug_net_smtp); if ($smtp_encryption eq 'tls' && $smtp) { require Net::SMTP::SSL; $smtp->command('STARTTLS'); @@ -963,7 +1032,11 @@ X-Mailer: git-send-email $gitversion } if (!$smtp) { - die "Unable to initialize SMTP properly. Is there something wrong with your config?"; + die "Unable to initialize SMTP properly. Check config and use --smtp-debug. ", + "VALUES: server=$smtp_server ", + "encryption=$smtp_encryption ", + "hello=$smtp_domain", + defined $smtp_server_port ? "port=$smtp_server_port" : ""; } if (defined $smtp_authuser) { |