Email protocol
This commit is contained in:
Ian Boisvert
parent
df883fd091
commit
73388db439
2 changed files with 110 additions and 2 deletions
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@ -27,6 +27,7 @@ Dynamic DNS services currently supported include:
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Google - See http://www.google.com/domains for details
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Duckdns - See https://duckdns.org/ for details
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woima.fi - See https://woima.fi/ for details
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email - Sends an email notification to specified recipients
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DDclient now supports many of cable/dsl broadband routers.
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111
ddclient
111
ddclient
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@ -25,6 +25,9 @@ use Getopt::Long;
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use Sys::Hostname;
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use IO::Socket;
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use Data::Validate::IP;
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use Email::Simple;
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use Email::Sender::Simple;
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use Email::Address;
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my $version = "3.8.3";
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my $programd = $0;
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@ -479,6 +482,15 @@ my %variables = (
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'warned-min-interval' => setv(T_ANY, 0, 1, 0, 0, undef),
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'warned-min-error-interval' => setv(T_ANY, 0, 1, 0, 0, undef),
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},
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'email-common-defaults' => {
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# Server, login, password not required for email protocol, redeclare as not required
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'server' => setv(T_FQDNP, 0, 0, 0, '', undef),
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'login' => setv(T_LOGIN, 0, 0, 0, '', undef),
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'password' => setv(T_PASSWD, 0, 0, 0, '', undef),
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'sender' => setv(T_EMAIL, 1, 0, 1, '', undef),
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'recipients' => setv(T_STRING, 1, 0, 1, '', undef),
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'subject' => setv(T_STRING, 0, 0, 1, 'IP address change notification', undef),
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},
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);
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my %services = (
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'dyndns1' => {
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@ -672,6 +684,15 @@ my %services = (
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$variables{'woima-service-common-defaults'},
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),
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},
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'email' => {
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'updateable' => undef,
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'update' => \&nic_email_update,
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'examples' => \&nic_email_examples,
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'variables' => merge(
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$variables{'email-common-defaults'},
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$variables{'service-common-defaults'},
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),
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},
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);
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$variables{'merged'} = merge($variables{'global-defaults'},
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$variables{'service-common-defaults'},
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@ -2367,11 +2388,12 @@ sub nic_updateable {
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my $sub = shift;
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my $update = 0;
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my $ip = $config{$host}{'wantip'};
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my $svars = $services{$config{$host}{'protocol'}}{'variables'};
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if ($config{$host}{'login'} eq '') {
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if ($svars->{'login'} && $svars->{'login'}{'required'} && $config{$host}{'login'} eq '') {
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warning("null login name specified for host %s.", $host);
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} elsif ($config{$host}{'password'} eq '') {
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} elsif ($svars->{'login'} && $svars->{'login'}{'required'} && $config{$host}{'password'} eq '') {
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warning("null password specified for host %s.", $host);
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} elsif ($opt{'force'}) {
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@ -4587,6 +4609,91 @@ sub nic_woima_update {
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}
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}
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######################################################################
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## nic_email_examples
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######################################################################
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sub nic_email_examples {
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return <<EoEXAMPLE;
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o 'email'
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The 'email' protocol is a poor man's IP address update scheme where
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an email message containing the new IP address is sent to the specified
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recipients.
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Configuration variables applicable to the 'email' protocol are:
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protocol=email ##
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sender=email-address ## The address of the sender to use in
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## the email header
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recipients=list-of-email-addresses ## A comma-separated list of addresses
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## of the recipients of the IP
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## address change notification
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subject=text ## The text that will be used
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## in the subject line of the email
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hostname ## A string identifying the service
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Example ${program}.conf file entries:
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## single notification recipient, default subject line
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protocol=email, \\
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sender="\\"ddclient\\" <user\@host.com>" \\
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recipients=user\@webmail.com \\
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webmail
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## multiple notification recipients
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protocol=email \\
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sender=user\@host.com \\
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recipients="user1\@webmail.com, user2\@anothermail.com" \\
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subject="IP address change notification" \\
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email.service
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EoEXAMPLE
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}
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######################################################################
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## nic_email_update
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######################################################################
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sub nic_email_update {
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debug("\nnic_email_update -------------------");
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## update each configured host
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foreach my $h (@_) {
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my $ip = delete $config{$h}{'wantip'};
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info("setting IP address to %s for %s", $ip, $h);
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verbose("UPDATE:","updating %s", $h);
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my @from = Email::Address->parse($config{$h}{'sender'});
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if (! @from) {
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failed("invalid sender address for host %s.", $h);
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}
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my $from = $from[0];
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my @to = Email::Address->parse($config{$h}{'recipients'});
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if (! @to) {
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failed("invalid recipient email address %s specified for host %s.", $config{$h}{'recipients'}, $h);
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}
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my $to = join(",", @to);
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my $subject = $config{$h}{'subject'} if defined $config{$h}{'subject'};
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my $body = sprintf("IP address of %s set to %s", $h, $ip);
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my $email = Email::Simple->create(
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header => [
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From => "$from",
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To => "$to",
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Subject => "$subject"
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],
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body => "$body",
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);
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eval {
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Email::Sender::Simple->send($email);
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};
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if ($@) {
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$config{$h}{'status'} = 'failed';
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warning("error sending email to host %s: %s", $h, $@);
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}
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else {
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$config{$h}{'ip'} = $ip;
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$config{$h}{'mtime'} = $now;
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$config{$h}{'status'} = 'good';
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success("updating %s: good: IP address set to %s", $h, $ip);
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}
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}
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}
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######################################################################
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# vim: ai ts=4 sw=4 tw=78 :
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