Send inline images with cid (load images via http/https in src).

app/controllers/tickets_controller.rb

@@ -537,6 +537,28 @@ class TicketsController < ApplicationController
     article = Ticket::Article.new(Ticket::Article.param_validation( params ))
     article.ticket_id = ticket.id
 
+    # store dataurl images to store
+    if form_id && article.body && article.content_type =~ %r{text/html}i
+      article.body.gsub!( %r{(<img\s.+?src=")(data:image/(jpeg|png);base64,.+?)">}i ) { |_item|
+        file_attributes = StaticAssets.data_url_attributes($2)
+        cid = "#{ticket.id}.#{form_id}.#{rand(999_999)}@#{Setting.get('fqdn')}"
+        headers_store = {
+          'Content-Type' => file_attributes[:mime_type],
+          'Mime-Type' => file_attributes[:mime_type],
+          'Content-ID' => cid,
+          'Content-Disposition' => 'inline',
+        }
+        store = Store.add(
+          object: 'UploadCache',
+          o_id: form_id,
+          data: file_attributes[:content],
+          filename: cid,
+          preferences: headers_store
+        )
+        "#{$1}cid:#{cid}\">"
+      }
+    end
+
     # find attachments in upload cache
     if form_id
       article.attachments = Store.list(

app/models/channel/email_build.rb

@@ -82,9 +82,23 @@ module Channel::EmailBuild
     if html_alternative
       html_container = Mail::Part.new { content_type 'multipart/related' }
       html_container.add_part html_alternative
-      alternative_bodies.add_part html_container
 
       # place to add inline attachments related to html alternative
+      if attr[:attachments]
+        attr[:attachments].each do |attachment|
+          next if attachment.class == Hash
+          next if attachment.preferences['Content-ID'].empty?
+          attachment = Mail::Part.new do
+            content_type attachment.preferences['Content-Type']
+            content_id attachment.preferences['Content-ID']
+            content_disposition attachment.preferences['Content-Disposition'] || 'inline'
+            content_transfer_encoding 'binary'
+            body attachment.content.force_encoding('BINARY')
+          end
+          html_container.add_part attachment
+        end
+      end
+      alternative_bodies.add_part html_container
     end
 
     mail.add_part alternative_bodies
@@ -96,11 +110,12 @@ module Channel::EmailBuild
           attachment['content-id'] = nil
           mail.attachments[ attachment[:filename] ] = attachment
         else
+          next if !attachment.preferences['Content-ID'].empty?
           mail.attachments[attachment.filename] = {
-            :content_type => attachment.preferences['Content-Type'],
-            :mime_type    => attachment.preferences['Mime-Type'],
-            :content      => attachment.content,
-            'content-id'  => nil,
+            content_disposition: attachment.preferences['Content-Disposition'] || 'attachment',
+            content_type: attachment.preferences['Content-Type'],
+            mime_type: attachment.preferences['Mime-Type'],
+            content: attachment.content,
           }
         end
       end

app/models/store.rb

@@ -18,8 +18,8 @@ add an attachment to storage
     o_id: 4711,
     data: binary_string,
     preferences: {
-      :content_type => 'image/png',
-      :content_id   => 234,
+      content_type: 'image/png',
+      content_id: 234,
     }
   )
 
@@ -69,8 +69,8 @@ returns
     size: 94123,
     filename: 'image.png',
     preferences: {
-      :content_type => 'image/png',
-      :content_id   => 234,
+      content_type: 'image/png',
+      content_id: 234,
     }
   }
   store1.content # binary_string

app/models/ticket/article.rb

@@ -37,6 +37,30 @@ class Ticket::Article < ApplicationModel
     self.message_id_md5 = Digest::MD5.hexdigest(message_id.to_s)
   end
 
+  # insert inline image urls
+  def self.insert_urls(article, attachments)
+    inline_attachments = {}
+    article['body'].gsub!( /(<img\s(style.+?|)src=")cid:(.+?)(">)/i ) { |item|
+      replace = item
+
+      # look for attachment
+      attachments.each {|file|
+        next if !file.preferences['Content-ID'] || file.preferences['Content-ID'] != $3
+        replace = "#{$1}/api/v1/ticket_attachment/#{article['ticket_id']}/#{article['id']}/#{file.id}#{$4}"
+        inline_attachments[file.id] = true
+        break
+      }
+      replace
+    }
+    new_attachments = []
+    attachments.each {|file|
+      next if inline_attachments[file.id]
+      new_attachments.push file
+    }
+    article['attachments'] = new_attachments
+    article
+  end
+
   private
 
   # strip not wanted chars

app/models/ticket/article/assets.rb

@@ -39,6 +39,20 @@ returns
 
       # add attachment list to article
       data[ Ticket::Article.to_app_model ][ id ]['attachments'] = attachments
+
+      if !data[ Ticket::Article.to_app_model ][ id ]['attachments'].empty?
+        if data[ Ticket::Article.to_app_model ][ id ]['content_type'] =~ %r{text/html}i
+          if data[ Ticket::Article.to_app_model ][ id ]['body'] =~ /<img/i
+
+            # insert inline images with urls
+            attributes = Ticket::Article.insert_urls(
+              data[ Ticket::Article.to_app_model ][ id ],
+              data[ Ticket::Article.to_app_model ][ id ]['attachments']
+            )
+            data[ Ticket::Article.to_app_model ][ id ] = attributes
+          end
+        end
+      end
     end
 
     %w(created_by_id updated_by_id).each {|local_user_id|

db/migrate/20160509000001_contenteditable_iamges.rb

@@ -7,5 +7,6 @@ class ContenteditableIamges < ActiveRecord::Migration
     change_column :text_modules, :content, :text, limit: 10.megabytes + 1, null: false
     change_column :signatures, :body, :text, limit: 10.megabytes + 1, null: true
     change_column :ticket_articles, :body, :text, limit: 20.megabytes + 1, null: false
+    change_column :taskbars, :state, :text, limit: 20.megabytes + 1, null: true
   end
 end