feat: add P12 certificate generation and display

- Add P12 certificate generation button to API user certificates view
- Create new partials for displaying private key and P12 certificate details
- Add expires_at field to P12 certificate display
- Add new routes for P12 certificate generation
- Add translations for new certificate features in English and Estonian

app/controllers/certificates/p12_controller.rb

@@ -0,0 +1,20 @@
+module Certificates
+  class P12Controller < BaseController
+    def create
+      conn = ApiConnector::Certificates::P12::Creator.new(**auth_info)
+      result = conn.call_action(payload: p12_payload)
+      handle_response(result); return if performed?
+
+      flash.notice = @message
+      redirect_to api_user_path(params[:api_user_id])
+    end
+
+    private
+
+    def p12_payload
+      {
+        api_user_id: params[:api_user_id]
+      }
+    end
+  end
+end

app/services/api_connector/certificates/p12/creator.rb

@@ -0,0 +1,25 @@
+class ApiConnector
+  module Certificates
+    module P12
+      class Creator < ApiConnector
+        ACTION = 'create_p12'
+        ENDPOINT = {
+          method: 'post',
+          endpoint: '/certificates/p12',
+        }.freeze
+
+        def create_p12(payload: nil)
+          request(url: endpoint_url, method: method, params: p12_params(payload))
+        end
+
+        private
+
+        def p12_params(payload)
+          {
+            api_user_id: payload[:api_user_id]
+          }
+        end
+      end
+    end
+  end
+end

app/views/api_users/partials/_certificates.html.erb

@@ -4,7 +4,8 @@
             <h2><%= t('api_users.show.certificates') %></h2>
         </div>
         <div class="col-xs-auto">
-            <%= link_to "#{t('api_users.show.submit_csr')} <i class='fas fa-upload'></i>".html_safe, 'javascript: void(0);', 'data-dialog': 'upload_csr' %>
+            <%= link_to "#{t('api_users.show.submit_csr')} <i class='fas fa-upload'></i>".html_safe, 'javascript: void(0);', 'data-dialog': 'upload_csr' %><br />
+            <%= button_to "#{t('api_users.show.generate_p12')} <i class='fas fa-upload'></i>".html_safe, create_p12_certificates_path(api_user_id: @api_user[:id]) %>
         </div>
     </div>
 </div>

app/views/certificates/partials/_p12.html.erb

@@ -0,0 +1,22 @@
+<div class="page--block--header">
+    <div class="row between-xs">
+        <div class="col-xs-auto">
+            <h2><%= t('certificates.show.p12') %></h2>
+        </div>
+        <div class="col-xs-auto">
+            <%= 
+                link_to "#{t(:download)} <i class='fas fa-download'></i>".html_safe,
+                  download_api_user_certificate_path(@certificate[:api_user_id], @certificate[:id], 'p12'),
+                  data: { turbo: false }
+            %>
+        </div>
+    </div>
+</div>
+<table class="table table__basic">
+    <tbody>
+        <tr>
+            <th><%= t('certificates.show.expires_at') %></th>
+            <td><%= l @certificate[:expires_at].to_datetime if @certificate[:expires_at].present? %></td>
+        </tr>
+    </tbody>
+</table> 

app/views/certificates/partials/_private_key.html.erb

@@ -0,0 +1,22 @@
+<div class="page--block--header">
+    <div class="row between-xs">
+        <div class="col-xs-auto">
+            <h2><%= t('certificates.show.private_key') %></h2>
+        </div>
+        <div class="col-xs-auto">
+            <%= 
+                link_to "#{t(:download)} <i class='fas fa-download'></i>".html_safe,
+                  download_api_user_certificate_path(@certificate[:api_user_id], @certificate[:id], 'private_key'),
+                  data: { turbo: false }
+            %>
+        </div>
+    </div>
+</div>
+<table class="table table__basic">
+    <tbody>
+        <tr>
+            <th><%= t('certificates.show.type') %></th>
+            <td><%= @certificate[:private_key].dig('type') %></td>
+        </tr>
+    </tbody>
+</table> 

app/views/certificates/show.html.erb

@@ -38,4 +38,24 @@
             </div>
         </div>
     <% end %>
+
+    <% unless @certificate[:private_key].blank? %>
+        <div class="page--block">
+            <div class="wrapper">
+                <div class="col-xs-12 col-md-8 col-md-offset-2">
+                    <%= render 'certificates/partials/private_key' %>
+                </div>
+            </div>
+        </div>
+    <% end %>
+
+    <% unless @certificate[:p12].blank? %>
+        <div class="page--block">
+            <div class="wrapper">
+                <div class="col-xs-12 col-md-8 col-md-offset-2">
+                    <%= render 'certificates/partials/p12' %>
+                </div>
+            </div>
+        </div>
+    <% end %>
 </div>

config/locales/en.yml

@@ -552,6 +552,7 @@ en:
       updated: "Updated"
       by: "by %{user}"
       submit_csr: "Submit CSR"
+      generate_p12: "Generate P12"
     edit:
       title: "Api User"
 
@@ -584,6 +585,10 @@ en:
         expired: "Expired"
         revoked: "Revoked"
         valid: "Valid"
+      private_key: "Private Key"
+      p12: "P12 Certificate"
+      expires_at: "Expires At"
+      type: "Type"
 
   white_ips:
     index:

config/locales/et.yml

@@ -554,6 +554,7 @@ et:
       updated: "Muudetud"
       by: "[%{user}]"
       submit_csr: "Esita CSR"
+      generate_p12: "Genereeri P12"
     edit:
       title: "Api kasutaja"
 
@@ -586,6 +587,10 @@ et:
         expired: "Aegunud"
         revoked: "Tühistatud"
         valid: "Kehtiv"
+      private_key: "Privaatvõti"
+      p12: "P12 Sertifikaat"
+      expires_at: "Aegub"
+      type: "Tüüp"
 
   white_ips:
     index:

config/routes.rb

@@ -94,7 +94,11 @@
       end
     end
     resources :white_ips, except: %i[new edit]
-    resources :certificates, only: %i[create]
+    resources :certificates, only: %i[create] do
+      scope module: :certificates do
+        post 'p12', to: 'p12#create', as: :create_p12, on: :collection
+      end
+    end
   end
 end
 # rubocop:enable Metrics/BlockLength