From a81cbfc4e9b3e5b5462bc50618791cd45c9882ef Mon Sep 17 00:00:00 2001
From: Byron Jones <bjones@mozilla.com>
Date: Thu, 7 Nov 2013 16:49:38 +0800
Subject: Bug 935570: add ProjectHoneyPot protection

---
 Bugzilla/User.pm                                   |  3 ++
 extensions/ProjectHoneyPot/Config.pm               | 15 ++++++
 extensions/ProjectHoneyPot/Extension.pm            | 63 ++++++++++++++++++++++
 .../params/editparams-current_panel.html.tmpl      | 16 ++++++
 4 files changed, 97 insertions(+)
 create mode 100644 extensions/ProjectHoneyPot/Config.pm
 create mode 100644 extensions/ProjectHoneyPot/Extension.pm
 create mode 100644 extensions/ProjectHoneyPot/template/en/default/hook/admin/params/editparams-current_panel.html.tmpl

diff --git a/Bugzilla/User.pm b/Bugzilla/User.pm
index 946fe8cb1..4e4489935 100644
--- a/Bugzilla/User.pm
+++ b/Bugzilla/User.pm
@@ -2074,6 +2074,9 @@ sub check_and_send_account_creation_confirmation {
         ThrowUserError('account_creation_restricted');
     }
 
+    # BMO - add a hook to allow extra validation prior to account creation.
+    Bugzilla::Hook::process("user_verify_login", { login => $login });
+
     # Create and send a token for this new account.
     require Bugzilla::Token;
     Bugzilla::Token::issue_new_user_account_token($login);
diff --git a/extensions/ProjectHoneyPot/Config.pm b/extensions/ProjectHoneyPot/Config.pm
new file mode 100644
index 000000000..83d8d313e
--- /dev/null
+++ b/extensions/ProjectHoneyPot/Config.pm
@@ -0,0 +1,15 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+# This Source Code Form is "Incompatible With Secondary Licenses", as
+# defined by the Mozilla Public License, v. 2.0.
+
+package Bugzilla::Extension::ProjectHoneyPot;
+use strict;
+
+use constant NAME => 'ProjectHoneyPot';
+use constant REQUIRED_MODULES => [ ];
+use constant OPTIONAL_MODULES => [ ];
+
+__PACKAGE__->NAME;
diff --git a/extensions/ProjectHoneyPot/Extension.pm b/extensions/ProjectHoneyPot/Extension.pm
new file mode 100644
index 000000000..856fe7f1e
--- /dev/null
+++ b/extensions/ProjectHoneyPot/Extension.pm
@@ -0,0 +1,63 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+# This Source Code Form is "Incompatible With Secondary Licenses", as
+# defined by the Mozilla Public License, v. 2.0.
+
+package Bugzilla::Extension::ProjectHoneyPot;
+
+use strict;
+use warnings;
+
+use base qw(Bugzilla::Extension);
+
+use Encode;
+use Bugzilla::Error;
+use Bugzilla::Util qw(remote_ip);
+use Socket;
+use Sys::Syslog qw(:DEFAULT setlogsock);
+
+our $VERSION = '1';
+
+sub user_verify_login {
+    my ($self, $args) = @_;
+    return unless my $api_key = Bugzilla->params->{honeypot_api_key};
+    my $ip = remote_ip();
+    return unless $ip =~ /^(\d+)\.(\d+)\.(\d+)\.(\d+)$/;
+    my $lookup = "$api_key.$4.$3.$2.$1.dnsbl.httpbl.org";
+    return unless my $packed = gethostbyname($lookup);
+    my $honeypot = inet_ntoa($packed);
+    return unless $honeypot =~ /^(\d+)\.(\d+)\.(\d+)\.(\d+)$/;
+    my ($status, $days, $threat, $type) = ($1, $2, $3, $4);
+
+    return if $status != 127
+              || $threat < Bugzilla->params->{honeypot_threat_threshold};
+
+    _syslog(sprintf("[audit] blocked <%s> from creating %s, honeypot %s",
+        $ip, $args->{login}, $honeypot));
+    ThrowUserError('account_creation_restricted');
+}
+
+sub config_modify_panels {
+    my ($self, $args) = @_;
+    push @{ $args->{panels}->{auth}->{params} }, {
+        name    => 'honeypot_api_key',
+        type    => 't',
+        default => '',
+    };
+    push @{ $args->{panels}->{auth}->{params} }, {
+        name    => 'honeypot_threat_threshold',
+        type    => 't',
+        default => '32',
+    };
+}
+
+sub _syslog {
+    my $message = shift;
+    openlog('apache', 'cons,pid', 'local4');
+    syslog('notice', encode_utf8($message));
+    closelog();
+}
+
+__PACKAGE__->NAME;
diff --git a/extensions/ProjectHoneyPot/template/en/default/hook/admin/params/editparams-current_panel.html.tmpl b/extensions/ProjectHoneyPot/template/en/default/hook/admin/params/editparams-current_panel.html.tmpl
new file mode 100644
index 000000000..e8e67eccb
--- /dev/null
+++ b/extensions/ProjectHoneyPot/template/en/default/hook/admin/params/editparams-current_panel.html.tmpl
@@ -0,0 +1,16 @@
+[%# This Source Code Form is subject to the terms of the Mozilla Public
+  # License, v. 2.0. If a copy of the MPL was not distributed with this
+  # file, You can obtain one at http://mozilla.org/MPL/2.0/.
+  #
+  # This Source Code Form is "Incompatible With Secondary Licenses", as
+  # defined by the Mozilla Public License, v. 2.0.
+  #%]
+
+[% IF panel.name == "auth" %]
+  [% panel.param_descs.honeypot_api_key =
+    'API Key for http://www.projecthoneypot.org'
+  %]
+  [% panel.param_descs.honeypot_threat_threshold =
+    'Users will be unable to create accounts if their honeypot threat score is this value or higher.'
+  %]
+[% END -%]
-- 
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