change repository images error

app/controllers/repositories_controller.rb

@@ -32,6 +32,7 @@ class RepositoriesController < ApplicationController
     @project_owner = @project.owner
     @entries = Gitea::Repository::Entries::ListService.new(@project_owner, @project.identifier, ref: @ref).call
     @entries = @entries.sort_by{ |hash| hash['type'] }
+    @path = Gitea.gitea_config[:domain]+"/#{@project.owner.login}/#{@project.identifier}/raw/branch/#{@ref}/"
   end
 
   def sub_entries

app/helpers/repositories_helper.rb

@@ -18,4 +18,36 @@ module RepositoriesHelper
     return nil if author_json.blank?
     find_user_by_login author_json['login']
   end
+
+  def readme_render_decode64_content(str, path)
+    return nil if str.blank?
+    content = Base64.decode64(str).force_encoding('UTF-8')
+
+    c_regex = /\!\[.*?\]\((.*?)\)/
+    src_regex = /src=\"(.*?)\"/
+    ss = content.to_s.scan(c_regex)
+    ss_src = content.to_s.scan(src_regex)
+    total_images = ss + ss_src
+    if total_images.length > 0
+      total_images.each do |s|
+        image_title = /\"(.*?)\"/
+        r_content = s[0]
+        remove_title = r_content.to_s.scan(image_title)
+        if remove_title.length > 0
+          r_content = r_content.gsub(/#{remove_title[0]}/, "").strip
+        end
+        if r_content.include?("?")
+          new_r_content = r_content + "&raw=true"
+        else 
+          new_r_content = r_content + "?raw=true"
+        end
+        unless r_content.include?("http://") || r_content.include?("https://") || r_content.include?("mailto:")
+          new_r_content = "#{path}" + new_r_content
+        end
+        content = content.gsub(/#{r_content}/, new_r_content)
+      end
+    end
+
+    return content
+  end
 end

app/views/repositories/entries.json.jbuilder

@@ -17,7 +17,7 @@ json.entries do
     content =
       if entry['name'] === 'README.md'
         content = Gitea::Repository::Entries::GetService.call(@project_owner, @project.identifier, entry['name'], ref: @ref)['content']
-        render_decode64_content content
+        readme_render_decode64_content(content, @path)
       else
         entry['content']
       end