Module: ImmosquareExtensions::PreviewMailerHelper

Defined in:
lib/immosquare-extensions/helpers/preview_mailer_helper.rb

Instance Method Summary collapse

Instance Method Details

#display_email_header_infos(email) ⇒ Object

##

Inspired by: github.com/rails/rails/blob/main/railties/lib/rails/templates/rails/mailers/email.html.erb

Here concact with “#{}” is not working, so used “data:application/octet-stream;charset=utf-8;base64,”+Base64.encode64(a.body.to_s)

##


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# File 'lib/immosquare-extensions/helpers/preview_mailer_helper.rb', line 10

def display_email_header_infos(email)
  ApplicationController.render(
    :layout => false,
    :locals => {
      :email   => email,
      :formats => get_email_formats(email),
      :locales => I18n.available_locales.map do |locale|
        {
          :name      => locale,
          :url       => url_for(:mailer_locale => locale, :part => params[:part].presence),
          :css_class => (params[:mailer_locale].present? && params[:mailer_locale] == locale.to_s) || (params[:mailer_locale].blank? && I18n.locale == locale) ? "" : "text-body"
        }
      end
    },
    :inline => <<~HTML
      <header>
        <table>
          <% if email.respond_to?(:smtp_envelope_from) && Array(email.from) != Array(email.smtp_envelope_from) %>
            <tr>
              <th>SMTP-From:</th>
              <td><%= email.smtp_envelope_from %></td>
            </tr>
          <% end %>

          <% if email.respond_to?(:smtp_envelope_to) && email.to != email.smtp_envelope_to %>
            <tr>
              <th>SMTP-To:</th>
              <td><%= email.smtp_envelope_to %></td>
            </tr>
          <% end %>

          <tr>
            <th>From:</th>
            <td><%= email.header["from"] %></td>
          </tr>

          <% if email.reply_to %>
            <tr>
              <th>Reply-To:</th>
              <td><%= email.header["reply-to"] %></td>
            </tr>
          <% end %>

          <tr>
            <th>To:</th>
            <td><%= email.header["to"] %></td>
          </tr>

          <% if email.cc %>
            <tr>
              <th>CC:</th>
              <td><%= email.header["cc"] %></td>
            </tr>
          <% end %>

          <% if email.bcc %>
            <tr>
              <th>BCC:</th>
              <td><%= email.header["bcc"] %></td>
            </tr>
          <% end %>

          <tr>
            <th>Date:</th>
            <td><%= Time.current.rfc2822 %></td>
          </tr>

          <tr>
            <th>Subject:</th>
            <td><%= email.subject %></td>
          </tr>

          <tr>
            <th>Formats:</th>
            <td>
            <% formats.each do |format| %>
              <%= link_to(format[:name], format[:url], :class => "text-decoration-none hover-primary" + " " + format[:css_class]) %>
              <%= content_tag(:span, " | ") unless format == formats.last %>
            <% end %>
            </td>
          </tr>

          <% if locales.size > 1 %>
          <tr>
            <th>Locale:</th>
            <td>
              <% locales.each do |locale| %>
                <%= link_to(locale[:name], locale[:url], :class => "text-decoration-none hover-primary" + " " + locale[:css_class]) %>
                <%= content_tag(:span, " | ") unless locale == locales.last %>
              <% end %>
            </td>
          </tr>
          <% end %>

          <% if !(email.attachments.nil? || email.attachments.empty?) %>
            <tr>
              <th>Attachments:</th>
              <td>
              <% email.attachments.each do |a| %>
                <% filename = a.respond_to?(:original_filename) ? a.original_filename : a.filename %>
                <%= link_to filename, "data:application/octet-stream;charset=utf-8;base64,"+Base64.encode64(a.body.to_s), download: filename %>
              <% end %>
              </td>
            </tr>
          <% end %>

          <% if !(email.header_fields.nil? || email.header_fields.empty?) %>
            <tr>
              <th class="align-top">Headers:</th>
              <td>
                <details>
                  <summary>Show all headers</summary>
                  <table>
                    <% email.header_fields.each do |field| %>
                      <tr>
                        <th><%= field.name %>:</th>
                        <td><%= field.value %></td>
                      </tr>
                    <% end %>
                  </table>
                </details>
              </td>
            </tr>
          <% end %>
        </table>
      </header>
    HTML
  )
end

#display_email_preview(email) ⇒ Object 



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# File 'lib/immosquare-extensions/helpers/preview_mailer_helper.rb', line 140

def display_email_preview(email)
  begin
    formats     = get_email_formats(email)
    part_format = formats.find {|f| f[:selected] }
    part_type   = Mime::Type.lookup(part_format[:content_type])

    raise("No email part found for content type: #{part_format[:content_type]}") if !(part = find_part(email, part_type))

    body = part.respond_to?(:decoded) ? part.decoded : part
    part_format[:name] == "html" ? body.html_safe : simple_format(body)
  rescue StandardError => e
    "Error displaying email: #{e.message}"
  end
end