Make static tor hidden services work (#8212).

When tor hidden services were enabled for static sites, only a very
basic configuration was setup and it didn't take into account the
different location configurations that can be configured for a
static site.

This commit resolves that by making a site_static::hidden_service class
similar to the site_webapp::hidden_service class, and fixes up the
apache vhost template to properly create the location blocks for the
hidden service vhost.

Change-Id: Ice3586f4173bd2d1bd3defca29d21c7403d5a03a

3 files changed, 91 insertions, 11 deletions

diff --git a/puppet/modules/site_static/manifests/hidden_service.pp b/puppet/modules/site_static/manifests/hidden_service.pp
new file mode 100644
index 00000000..f1f15f8e
--- /dev/null
+++ b/puppet/modules/site_static/manifests/hidden_service.pp
@@ -0,0 +1,37 @@
+# create hidden service for static sites
+class site_static::hidden_service {
+
+  include tor::daemon
+  tor::daemon::hidden_service { 'static': ports => [ '80 127.0.0.1:80'] }
+  file {
+    '/var/lib/tor/webapp/':
+      ensure  => directory,
+      owner   => 'debian-tor',
+      group   => 'debian-tor',
+      mode    => '2700';
+
+    '/var/lib/tor/static/private_key':
+      ensure  => present,
+      source  => "/srv/leap/files/nodes/${::hostname}/tor.key",
+      owner   => 'debian-tor',
+      group   => 'debian-tor',
+      mode    => '0600',
+      notify  => Service['tor'];
+
+    '/var/lib/tor/static/hostname':
+      ensure  => present,
+      content => "${::site_static::tor_domain}\n",
+      owner   => 'debian-tor',
+      group   => 'debian-tor',
+      mode    => '0600',
+      notify  => Service['tor'];
+  }
+
+  # it is necessary to zero out the config of the status module
+  # because we are configuring our own version that is unavailable
+  # over the hidden service (see: #7456 and #7776)
+  apache::module { 'status': ensure => present, conf_content => ' ' }
+
+  include site_shorewall::tor
+}
+
diff --git a/puppet/modules/site_static/manifests/init.pp b/puppet/modules/site_static/manifests/init.pp
index 8063d432..4912fbab 100644
--- a/puppet/modules/site_static/manifests/init.pp
+++ b/puppet/modules/site_static/manifests/init.pp
@@ -7,11 +7,14 @@ class site_static {
   include site_config::x509::key
   include site_config::x509::ca_bundle
 
-  $static        = hiera('static')
-  $domains       = $static['domains']
-  $formats       = $static['formats']
-  $bootstrap     = $static['bootstrap_files']
-  $tor           = hiera('tor', false)
+  $static         = hiera('static')
+  $domains        = $static['domains']
+  $formats        = $static['formats']
+  $bootstrap      = $static['bootstrap_files']
+
+  $tor            = hiera('tor', false)
+  $hidden_service = $tor['hidden_service']
+  $tor_domain     = "${hidden_service['address']}.onion"
 
   file {
     '/srv/static/':
@@ -71,15 +74,14 @@ class site_static {
     }
   }
 
-  create_resources(site_static::domain, $domains)
-
   if $tor {
-    $hidden_service = $tor['hidden_service']
     if $hidden_service['active'] {
-      include site_webapp::hidden_service
+      include site_static::hidden_service
     }
   }
 
+  create_resources(site_static::domain, $domains)
+
   include site_shorewall::defaults
   include site_shorewall::service::http
   include site_shorewall::service::https
diff --git a/puppet/modules/site_static/templates/apache.conf.erb b/puppet/modules/site_static/templates/apache.conf.erb
index b3e5fc09..2013e5ee 100644
--- a/puppet/modules/site_static/templates/apache.conf.erb
+++ b/puppet/modules/site_static/templates/apache.conf.erb
@@ -27,12 +27,52 @@
   Require all granted
 </Directory>
 
+<%- if @tor -%>
+<VirtualHost 127.0.0.1:80>
+  ServerName <%= @tor_domain %>
+  ServerAlias www.<%= @tor_domain %>
+
+  <IfModule mod_headers.c>
+    Header set X-Frame-Options "deny"
+    Header always unset X-Powered-By
+    Header always unset X-Runtime
+  </IfModule>
+
+  DocumentRoot "/<%= @document_root %>/"
+  AccessFileName .htaccess
+
+<%- if ([@aliases]+[@domain]).flatten.include?(bootstrap_domain) -%>
+  Alias /provider.json /srv/leap/provider.json
+  <Location /provider.json>
+    Header set X-Minimum-Client-Version <%= bootstrap_client['min'] %>
+  </Location>
+<%- end -%>
+
+<%- if @apache_config -%>
+<%=   @apache_config.gsub(':percent:','%') %>
+<%- end -%>
+
+<%- @locations && @locations.each do |name, location| -%>
+<%-   location_path = location['path'].gsub(%r{^/|/$}, '') -%>
+<%-   directory = location_directory(name, location) -%>
+<%-   local_vars = {'location_path'=>location_path, 'directory'=>directory, 'location'=>location, 'name'=>name} -%>
+<%-   template_path = File.join(File.dirname(__FILE__), location['format']) + '.erb' -%>
+<%-   break unless File.exists?(template_path) -%>
+  ##
+  ## <%= name %> (<%= location['format'] %>)
+  ##
+<%=   scope.function_templatewlv([template_path, local_vars]) %>
+<%- end -%>
+<%- end -%>
+</VirtualHost>
+
 <VirtualHost *:80>
   ServerName <%= @domain %>
   ServerAlias www.<%= @domain %>
 <%- @aliases && @aliases.each do |domain_alias| -%>
   ServerAlias <%= domain_alias %>
 <%- end -%>
+
 <%- if @tls_only -%>
   RewriteEngine On
   RewriteRule ^.*$ https://<%= @domain -%>%{REQUEST_URI} [R=permanent,L]
@@ -50,13 +90,15 @@
   #RewriteLogLevel 3
 
   Include include.d/ssl_common.inc
-
+  
+  <IfModule mod_headers.c>
 <%- if @tls_only -%>
   Header always set Strict-Transport-Security: "max-age=15768000;includeSubdomains"
 <%- end -%>
   Header set X-Frame-Options "deny"
   Header always unset X-Powered-By
   Header always unset X-Runtime
+  </IfModule>
 
   SSLCertificateKeyFile    /etc/x509/keys/<%= @domain %>.key
   SSLCertificateFile       /etc/x509/certs/<%= @domain %>.crt
@@ -88,5 +130,4 @@
   ##
 <%=   scope.function_templatewlv([template_path, local_vars]) %>
 <%- end -%>
-
 </VirtualHost>