Add latest changes from gitlab-org/gitlab@master

1 files changed, 19 insertions, 172 deletions

diff --git a/app/controllers/projects/wikis_controller.rb b/app/controllers/projects/wikis_controller.rb
index b187fdb2723..d531d256721 100644
--- a/app/controllers/projects/wikis_controller.rb
+++ b/app/controllers/projects/wikis_controller.rb
@@ -1,120 +1,28 @@
 # frozen_string_literal: true
 
 class Projects::WikisController < Projects::ApplicationController
-  include PreviewMarkdown
-  include SendsBlob
-  include Gitlab::Utils::StrongMemoize
+  include ProjectWikiActions
+  include WikiHelper
 
-  before_action :authorize_read_wiki!
-  before_action :authorize_create_wiki!, only: [:edit, :create]
-  before_action :authorize_admin_wiki!, only: :destroy
-  before_action :load_project_wiki
-  before_action :load_page, only: [:show, :edit, :update, :history, :destroy]
-  before_action :valid_encoding?,
-    if: -> { %w[show edit update].include?(action_name) && load_page }
-  before_action only: [:edit, :update], unless: :valid_encoding? do
-    redirect_to(project_wiki_path(@project, @page))
-  end
-
-  def new
-    redirect_to project_wiki_path(@project, SecureRandom.uuid, random_title: true)
+  def self.local_prefixes
+    [controller_path, 'shared/wiki']
   end
 
   def pages
+    @nesting = show_children_param
+    @show_children = @nesting != ProjectWiki::NESTING_CLOSED
     @wiki_pages = Kaminari.paginate_array(
-      @project_wiki.list_pages(sort: params[:sort], direction: params[:direction])
+      project_wiki.list_pages(**sort_params)
     ).page(params[:page])
 
-    @wiki_entries = WikiPage.group_by_directory(@wiki_pages)
-  end
-
-  # `#show` handles a number of scenarios:
-  #
-  # - If `id` matches a WikiPage, then show the wiki page.
-  # - If `id` is a file in the wiki repository, then send the file.
-  # - If we know the user wants to create a new page with the given `id`,
-  #   then display a create form.
-  # - Otherwise show the empty wiki page and invite the user to create a page.
-  def show
-    if @page
-      set_encoding_error unless valid_encoding?
-
-      render 'show'
-    elsif file_blob
-      send_blob(@project_wiki.repository, file_blob)
-    elsif show_create_form?
-      # Assign a title to the WikiPage unless `id` is a randomly generated slug from #new
-      title = params[:id] unless params[:random_title].present?
-
-      @page = build_page(title: title)
-
-      render 'edit'
-    else
-      render 'empty'
-    end
-  end
-
-  def edit
-  end
-
-  def update
-    return render('empty') unless can?(current_user, :create_wiki, @project)
-
-    @page = WikiPages::UpdateService.new(@project, current_user, wiki_params).execute(@page)
-
-    if @page.valid?
-      redirect_to(
-        project_wiki_path(@project, @page),
-        notice: _('Wiki was successfully updated.')
-      )
-    else
-      render 'edit'
-    end
-  rescue WikiPage::PageChangedError, WikiPage::PageRenameError, Gitlab::Git::Wiki::OperationError => e
-    @error = e
-    render 'edit'
-  end
-
-  def create
-    @page = WikiPages::CreateService.new(@project, current_user, wiki_params).execute
-
-    if @page.persisted?
-      redirect_to(
-        project_wiki_path(@project, @page),
-        notice: _('Wiki was successfully updated.')
-      )
-    else
-      render action: "edit"
-    end
-  rescue Gitlab::Git::Wiki::OperationError => e
-    @page = build_page(wiki_params)
-    @error = e
-
-    render 'edit'
-  end
-
-  def history
-    if @page
-      @page_versions = Kaminari.paginate_array(@page.versions(page: params[:page].to_i),
-                                               total_count: @page.count_versions)
-        .page(params[:page])
-    else
-      redirect_to(
-        project_wiki_path(@project, :home),
-        notice: _("Page not found")
-      )
-    end
-  end
-
-  def destroy
-    WikiPages::DestroyService.new(@project, current_user).execute(@page)
+    @wiki_entries = case @nesting
+                    when ProjectWiki::NESTING_FLAT
+                      @wiki_pages
+                    else
+                      WikiDirectory.group_by_directory(@wiki_pages)
+                    end
 
-    redirect_to project_wiki_path(@project, :home),
-                status: 302,
-                notice: _("Page was successfully deleted")
-  rescue Gitlab::Git::Wiki::OperationError => e
-    @error = e
-    render 'edit'
+    render 'show'
   end
 
   def git_access
@@ -122,74 +30,13 @@ class Projects::WikisController < Projects::ApplicationController
 
   private
 
-  def show_create_form?
-    can?(current_user, :create_wiki, @project) &&
-      @page.nil? &&
-      # Always show the create form when the wiki has had at least one page created.
-      # Otherwise, we only show the form when the user has navigated from
-      # the 'empty wiki' page
-      (@project_wiki.exists? || params[:view] == 'create')
+  def sort_params
+    process_params(sort_params_config)
   end
 
-  def load_project_wiki
-    @project_wiki = load_wiki
-
-    # Call #wiki to make sure the Wiki Repo is initialized
-    @project_wiki.wiki
-
-    @sidebar_page = @project_wiki.find_sidebar(params[:version_id])
-
-    unless @sidebar_page # Fallback to default sidebar
-      @sidebar_wiki_entries = WikiPage.group_by_directory(@project_wiki.list_pages(limit: 15))
-    end
-  rescue ProjectWiki::CouldNotCreateWikiError
-    flash[:notice] = _("Could not create Wiki Repository at this time. Please try again later.")
-    redirect_to project_path(@project)
-    false
-  end
-
-  def load_wiki
-    ProjectWiki.new(@project, current_user)
-  end
-
-  def wiki_params
-    params.require(:wiki).permit(:title, :content, :format, :message, :last_commit_sha)
-  end
-
-  def build_page(args = {})
-    WikiPage.new(@project_wiki).tap do |page|
-      page.update_attributes(args) # rubocop:disable Rails/ActiveRecordAliases
-    end
-  end
-
-  def load_page
-    @page ||= @project_wiki.find_page(*page_params)
-  end
-
-  def page_params
-    keys = [:id]
-    keys << :version_id if params[:action] == 'show'
-
-    params.values_at(*keys)
-  end
-
-  def valid_encoding?
-    strong_memoize(:valid_encoding) do
-      @page.content.encoding == Encoding::UTF_8
-    end
-  end
-
-  def set_encoding_error
-    flash.now[:notice] = _("The content of this page is not encoded in UTF-8. Edits can only be made via the Git repository.")
-  end
-
-  def file_blob
-    strong_memoize(:file_blob) do
-      commit = @project_wiki.repository.commit(@project_wiki.default_branch)
-
-      next unless commit
+  def show_children_param
+    config = nesting_params_config(params[:sort])
 
-      @project_wiki.repository.blob_at(commit.id, params[:id])
-    end
+    process_params(config)
   end
 end