Add new resource for certs

app/views/admin/certificates/show.haml

@@ -0,0 +1,75 @@
+.row
+  .col-sm-6
+    %h2.text-center-xs
+      = t('certificates')
+  .col-sm-6
+    %h2.text-right.text-center-xs
+      = link_to(t('back_to_api_user'), [:admin, @api_user], class: 'btn btn-default')
+
+%hr
+- if @certificate.errors.any?
+  - @certificate.errors.each do |attr, err|
+    = err
+    %br
+- if @certificate.errors.any?
+  %hr
+.row
+  .col-md-12
+    .panel.panel-default
+      .panel-heading.clearfix
+        .pull-left
+          = t('csr')
+        .pull-right
+          = link_to(t('download'), download_csr_admin_api_user_certificate_path(@api_user, @certificate), class: 'btn btn-default btn-xs')
+          - unless @crt
+            = link_to(t('sign_this_request'), sign_admin_api_user_certificate_path(@api_user, @certificate), method: :post, class: 'btn btn-primary btn-xs')
+
+      .panel-body
+        %dl.dl-horizontal
+          %dt= t('version')
+          %dd= @csr.version
+
+          %dt= t('subject')
+          %dd= @csr.subject
+
+          %dt= t('signature_algorithm')
+          %dd= @csr.signature_algorithm
+
+- if @crt
+  .row
+    .col-md-12
+      .panel.panel-default
+        .panel-heading.clearfix
+          .pull-left
+            = t('crt') unless @certificate.revoked?
+            = t('crt_revoked') if @certificate.revoked?
+          .pull-right
+            = link_to(t('download'), download_crt_admin_api_user_certificate_path(@api_user, @certificate), class: 'btn btn-default btn-xs')
+            - unless @certificate.revoked?
+              = link_to(t('revoke_this_certificate'), revoke_admin_api_user_certificate_path(@api_user, @certificate), method: :post, class: 'btn btn-primary btn-xs')
+        - if @crt
+          .panel-body
+            %dl.dl-horizontal
+              %dt= t('version')
+              %dd= @crt.version
+
+              %dt= t('serial_number')
+              %dd= @crt.serial
+
+              %dt= t('signature_algorithm')
+              %dd= @crt.signature_algorithm
+
+              %dt= t('issuer')
+              %dd= @crt.issuer
+
+              %dt= t('valid_from')
+              %dd= @crt.not_before
+
+              %dt= t('valid_to')
+              %dd= @crt.not_after
+
+              %dt= t('subject')
+              %dd= @crt.subject
+
+              %dt= t('extensions')
+              %dd= @crt.extensions.map(&:to_s).join('<br>').html_safe