Fixes #3528 - Allow to add S/MIME certificate chains from single file.

app/controllers/integration/smime_controller.rb

@@ -42,11 +42,13 @@ class Integration::SMIMEController < ApplicationController
       string = params[:file].read.force_encoding('utf-8')
     end
 
-    item = SMIMECertificate.create!(public_key: string)
+    items = string.scan(/.+?-+END(?: TRUSTED)? CERTIFICATE-+/mi).each_with_object([]) do |cert, result|
+      result << SMIMECertificate.create!(public_key: cert)
+    end
 
     render json: {
       result:   'ok',
-      response: item,
+      response: items,
     }
   rescue => e
     unprocessable_entity(e)

spec/requests/integration/smime_spec.rb

@@ -30,7 +30,7 @@ RSpec.describe 'Integration SMIME', type: :request do
         end.to change(SMIMECertificate, :count).by(1)
 
         expect(response).to have_http_status(:ok)
-        expect(DateTime.parse(json_response['response']['not_after_at'])).to eq(parsed_certificate.not_after)
+        expect(DateTime.parse(json_response['response'][0]['not_after_at'])).to eq(parsed_certificate.not_after)
       end
 
       it 'adds certificate by file' do
@@ -39,7 +39,7 @@ RSpec.describe 'Integration SMIME', type: :request do
         end.to change(SMIMECertificate, :count).by(1)
 
         expect(response).to have_http_status(:ok)
-        expect(DateTime.parse(json_response['response']['not_after_at'])).to eq(parsed_certificate.not_after)
+        expect(DateTime.parse(json_response['response'][0]['not_after_at'])).to eq(parsed_certificate.not_after)
       end
     end
 

spec/system/system/integration/smime_spec.rb

@@ -14,11 +14,14 @@ RSpec.describe 'Manage > Integration > S/MIME', type: :system do
     File.read(Rails.root.join("spec/fixtures/smime/#{fixture}.secret")).strip
   end
 
-  it 'enabling and adding of public and private key' do
+  before do
     visit 'system/integration/smime'
 
     # enable S/MIME
     click 'label[for=setting-switch]'
+  end
+
+  it 'enabling and adding of public and private key' do
 
     # add cert
     click '.js-addCertificate'
@@ -40,4 +43,22 @@ RSpec.describe 'Manage > Integration > S/MIME', type: :system do
     expect( SMIMECertificate.last.raw ).to be_present
     expect( SMIMECertificate.last.private_key ).to be_present
   end
+
+  it 'adding of multiple certificates at once' do
+    multiple_certificates = [
+      File.read(Rails.root.join('spec/fixtures/smime/ChainCA.crt')),
+      File.read(Rails.root.join('spec/fixtures/smime/IntermediateCA.crt')),
+      File.read(Rails.root.join('spec/fixtures/smime/RootCA.crt')),
+    ].join
+
+    # add cert
+    click '.js-addCertificate'
+    fill_in 'Paste Certificate', with: multiple_certificates
+    click '.js-submit'
+
+    # wait for ajax
+    expect(page).to have_text('ChainCA')
+    expect(page).to have_text('IntermediateCA')
+    expect(page).to have_text('RootCA')
+  end
 end