diff --git a/app/services/gitea/commit/diff_service.rb b/app/services/gitea/commit/diff_service.rb
new file mode 100644
index 000000000..712302505
--- /dev/null
+++ b/app/services/gitea/commit/diff_service.rb
@@ -0,0 +1,40 @@
+# get the diff info for the commit
+class Gitea::Commit::DiffService < Gitea::ClientService
+  attr_reader :owner, :repo, :sha, :token
+
+  # GET /repos/{owner}/{repo}/commits/{sha}/diff
+  # owner: 用户
+  # repo: 仓库名称/标识
+  # sha: commit唯一标识
+  # eg:
+  # Gitea::Commit::DiffService.call('jasder', 'repo_identifier', 'sha value')
+  def initialize(owner, repo, sha, token=nil)
+    @owner   = owner
+    @repo   = repo
+    @sha  = sha
+    @token = token
+  end
+
+  def call
+    response = get(url, params)
+    render_result(response)
+  end
+
+  private
+  def params
+    Hash.new.merge(token: token)
+  end
+
+  def url
+    "/repos/#{owner}/#{repo}/commits/#{sha}/diff".freeze
+  end
+
+  def render_result(response)
+    case response.status
+    when 200
+      JSON.parse(response.body)
+    else
+      nil
+    end
+  end
+end
diff --git a/app/services/gitea/commit/info_service.rb b/app/services/gitea/commit/info_service.rb
new file mode 100644
index 000000000..d337071e8
--- /dev/null
+++ b/app/services/gitea/commit/info_service.rb
@@ -0,0 +1,39 @@
+class Gitea::Commit::InfoService < Gitea::ClientService
+  attr_reader :owner, :repo, :sha, :token
+
+  # GET /repos/{owner}/{repo}/commits/{sha}/diff
+  # owner: 用户
+  # repo: 仓库名称/标识
+  # sha: commit唯一标识
+  # eg:
+  # Gitea::Commit::InfoService.call('jasder', 'repo_identifier', 'sha value', token='gitea token')
+  def initialize(owner, repo, sha, token=nil)
+    @owner   = owner
+    @repo   = repo
+    @sha  = sha
+    @token = token
+  end
+
+  def call
+    response = get(url, params)
+    render_result(response)
+  end
+
+  private
+  def params
+    Hash.new.merge(token: token)
+  end
+
+  def url
+    "/repos/#{owner}/#{repo}/git/commits/#{sha}".freeze
+  end
+
+  def render_result(response)
+    case response.status
+    when 200
+      JSON.parse(response.body)
+    else
+      nil
+    end
+  end
+end
\ No newline at end of file
diff --git a/db/migrate/20230309080338_change_user_mixin_field_collate.rb b/db/migrate/20230309080338_change_user_mixin_field_collate.rb
new file mode 100644
index 000000000..1899d43fe
--- /dev/null
+++ b/db/migrate/20230309080338_change_user_mixin_field_collate.rb
@@ -0,0 +1,6 @@
+class ChangeUserMixinFieldCollate < ActiveRecord::Migration[5.2]
+  def change
+    execute("ALTER TABLE `users` MODIFY `login` VARCHAR(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;")
+    execute("ALTER TABLE `users` MODIFY `mail` VARCHAR(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;")
+  end
+end