Merge branch 'feature/gb/manual-actions-protected-branches-permissions' into 'master'

Check access to a branch when user triggers manual action

Closes #20261

See merge request !10494

15 files changed, 109 insertions, 34 deletions

diff --git a/app/controllers/projects/application_controller.rb b/app/controllers/projects/application_controller.rb
index b4b0dfc3eb8..12e4a6999ae 100644
--- a/app/controllers/projects/application_controller.rb
+++ b/app/controllers/projects/application_controller.rb
@@ -40,13 +40,15 @@ class Projects::ApplicationController < ApplicationController
       (current_user && current_user.already_forked?(project))
   end
 
-  def authorize_project!(action)
-    return access_denied! unless can?(current_user, action, project)
+  def authorize_action!(action)
+    unless can?(current_user, action, project)
+      return access_denied!
+    end
   end
 
   def method_missing(method_sym, *arguments, &block)
     if method_sym.to_s =~ /\Aauthorize_(.*)!\z/
-      authorize_project!($1.to_sym)
+      authorize_action!($1.to_sym)
     else
       super
     end
diff --git a/app/controllers/projects/builds_controller.rb b/app/controllers/projects/builds_controller.rb
index e24fc45d166..0fd35bcb790 100644
--- a/app/controllers/projects/builds_controller.rb
+++ b/app/controllers/projects/builds_controller.rb
@@ -1,7 +1,11 @@
 class Projects::BuildsController < Projects::ApplicationController
   before_action :build, except: [:index, :cancel_all]
-  before_action :authorize_read_build!, only: [:index, :show, :status, :raw, :trace]
-  before_action :authorize_update_build!, except: [:index, :show, :status, :raw, :trace]
+
+  before_action :authorize_read_build!,
+    only: [:index, :show, :status, :raw, :trace]
+  before_action :authorize_update_build!,
+    except: [:index, :show, :status, :raw, :trace, :cancel_all]
+
   layout 'project'
 
   def index
@@ -28,7 +32,12 @@ class Projects::BuildsController < Projects::ApplicationController
   end
 
   def cancel_all
-    @project.builds.running_or_pending.each(&:cancel)
+    return access_denied! unless can?(current_user, :update_build, project)
+
+    @project.builds.running_or_pending.each do |build|
+      build.cancel if can?(current_user, :update_build, build)
+    end
+
     redirect_to namespace_project_builds_path(project.namespace, project)
   end
 
@@ -107,8 +116,13 @@ class Projects::BuildsController < Projects::ApplicationController
 
   private
 
+  def authorize_update_build!
+    return access_denied! unless can?(current_user, :update_build, build)
+  end
+
   def build
-    @build ||= project.builds.find_by!(id: params[:id]).present(current_user: current_user)
+    @build ||= project.builds.find(params[:id])
+      .present(current_user: current_user)
   end
 
   def build_path(build)
diff --git a/app/models/ci/build.rb b/app/models/ci/build.rb
index b426c27afbb..971ab7cb0ee 100644
--- a/app/models/ci/build.rb
+++ b/app/models/ci/build.rb
@@ -111,14 +111,9 @@ module Ci
     end
 
     def play(current_user)
-      # Try to queue a current build
-      if self.enqueue
-        self.update(user: current_user)
-        self
-      else
-        # Otherwise we need to create a duplicate
-        Ci::Build.retry(self, current_user)
-      end
+      Ci::PlayBuildService
+        .new(project, current_user)
+        .execute(self)
     end
 
     def cancelable?
diff --git a/app/models/deployment.rb b/app/models/deployment.rb
index afad001d50f..37adfb4de73 100644
--- a/app/models/deployment.rb
+++ b/app/models/deployment.rb
@@ -85,8 +85,8 @@ class Deployment < ActiveRecord::Base
   end
 
   def stop_action
-    return nil unless on_stop.present?
-    return nil unless manual_actions
+    return unless on_stop.present?
+    return unless manual_actions
 
     @stop_action ||= manual_actions.find_by(name: on_stop)
   end
diff --git a/app/policies/base_policy.rb b/app/policies/base_policy.rb
index 8890409d056..623424c63e0 100644
--- a/app/policies/base_policy.rb
+++ b/app/policies/base_policy.rb
@@ -97,6 +97,10 @@ class BasePolicy
     rules
   end
 
+  def rules
+    raise NotImplementedError
+  end
+
   def delegate!(new_subject)
     @rule_set.merge(Ability.allowed(@user, new_subject))
   end
diff --git a/app/policies/ci/build_policy.rb b/app/policies/ci/build_policy.rb
index 8b25332b73c..d4af4490608 100644
--- a/app/policies/ci/build_policy.rb
+++ b/app/policies/ci/build_policy.rb
@@ -1,5 +1,7 @@
 module Ci
   class BuildPolicy < CommitStatusPolicy
+    alias_method :build, :subject
+
     def rules
       super
 
@@ -8,6 +10,20 @@ module Ci
       %w[read create update admin].each do |rule|
         cannot! :"#{rule}_commit_status" unless can? :"#{rule}_build"
       end
+
+      if can?(:update_build) && protected_action?
+        cannot! :update_build
+      end
+    end
+
+    private
+
+    def protected_action?
+      return false unless build.action?
+
+      !::Gitlab::UserAccess
+        .new(user, project: build.project)
+        .can_push_to_branch?(build.ref)
     end
   end
 end
diff --git a/app/policies/ci/pipeline_policy.rb b/app/policies/ci/pipeline_policy.rb
index 3d2eef1c50c..10aa2d3e72a 100644
--- a/app/policies/ci/pipeline_policy.rb
+++ b/app/policies/ci/pipeline_policy.rb
@@ -1,4 +1,7 @@
 module Ci
-  class PipelinePolicy < BuildPolicy
+  class PipelinePolicy < BasePolicy
+    def rules
+      delegate! @subject.project
+    end
   end
 end
diff --git a/app/policies/environment_policy.rb b/app/policies/environment_policy.rb
index f4219569161..2fa15e64562 100644
--- a/app/policies/environment_policy.rb
+++ b/app/policies/environment_policy.rb
@@ -1,5 +1,17 @@
 class EnvironmentPolicy < BasePolicy
+  alias_method :environment, :subject
+
   def rules
-    delegate! @subject.project
+    delegate! environment.project
+
+    if can?(:create_deployment) && environment.stop_action?
+      can! :stop_environment if can_play_stop_action?
+    end
+  end
+
+  private
+
+  def can_play_stop_action?
+    Ability.allowed?(user, :update_build, environment.stop_action)
   end
 end
diff --git a/app/serializers/build_action_entity.rb b/app/serializers/build_action_entity.rb
index 184b4b7a681..75dda1af709 100644
--- a/app/serializers/build_action_entity.rb
+++ b/app/serializers/build_action_entity.rb
@@ -13,4 +13,12 @@ class BuildActionEntity < Grape::Entity
   end
 
   expose :playable?, as: :playable
+
+  private
+
+  alias_method :build, :object
+
+  def playable?
+    build.playable? && can?(request.user, :update_build, build)
+  end
 end
diff --git a/app/serializers/build_entity.rb b/app/serializers/build_entity.rb
index b804d6d0e8a..1380b347d8e 100644
--- a/app/serializers/build_entity.rb
+++ b/app/serializers/build_entity.rb
@@ -12,7 +12,7 @@ class BuildEntity < Grape::Entity
     path_to(:retry_namespace_project_build, build)
   end
 
-  expose :play_path, if: ->(build, _) { build.playable? } do |build|
+  expose :play_path, if: -> (*) { playable? } do |build|
     path_to(:play_namespace_project_build, build)
   end
 
@@ -25,11 +25,15 @@ class BuildEntity < Grape::Entity
 
   alias_method :build, :object
 
-  def path_to(route, build)
-    send("#{route}_path", build.project.namespace, build.project, build)
+  def playable?
+    build.playable? && can?(request.user, :update_build, build)
   end
 
   def detailed_status
     build.detailed_status(request.user)
   end
+
+  def path_to(route, build)
+    send("#{route}_path", build.project.namespace, build.project, build)
+  end
 end
diff --git a/app/serializers/pipeline_entity.rb b/app/serializers/pipeline_entity.rb
index ad8b4d43e8f..7eb7aac72eb 100644
--- a/app/serializers/pipeline_entity.rb
+++ b/app/serializers/pipeline_entity.rb
@@ -48,15 +48,15 @@ class PipelineEntity < Grape::Entity
   end
 
   expose :commit, using: CommitEntity
-  expose :yaml_errors, if: ->(pipeline, _) { pipeline.has_yaml_errors? }
+  expose :yaml_errors, if: -> (pipeline, _) { pipeline.has_yaml_errors? }
 
-  expose :retry_path, if: proc { can_retry? }  do |pipeline|
+  expose :retry_path, if: -> (*) { can_retry? }  do |pipeline|
     retry_namespace_project_pipeline_path(pipeline.project.namespace,
                                           pipeline.project,
                                           pipeline.id)
   end
 
-  expose :cancel_path, if: proc { can_cancel? } do |pipeline|
+  expose :cancel_path, if: -> (*) { can_cancel? } do |pipeline|
     cancel_namespace_project_pipeline_path(pipeline.project.namespace,
                                            pipeline.project,
                                            pipeline.id)
diff --git a/app/services/ci/play_build_service.rb b/app/services/ci/play_build_service.rb
new file mode 100644
index 00000000000..e24f48c2d16
--- /dev/null
+++ b/app/services/ci/play_build_service.rb
@@ -0,0 +1,17 @@
+module Ci
+  class PlayBuildService < ::BaseService
+    def execute(build)
+      unless can?(current_user, :update_build, build)
+        raise Gitlab::Access::AccessDeniedError
+      end
+
+      # Try to enqueue the build, otherwise create a duplicate.
+      #
+      if build.enqueue
+        build.tap { |action| action.update(user: current_user) }
+      else
+        Ci::Build.retry(build, current_user)
+      end
+    end
+  end
+end
diff --git a/app/services/ci/retry_pipeline_service.rb b/app/services/ci/retry_pipeline_service.rb
index ecc6173a96a..5b207157345 100644
--- a/app/services/ci/retry_pipeline_service.rb
+++ b/app/services/ci/retry_pipeline_service.rb
@@ -8,6 +8,8 @@ module Ci
       end
 
       pipeline.retryable_builds.find_each do |build|
+        next unless can?(current_user, :update_build, build)
+
         Ci::RetryBuildService.new(project, current_user)
           .reprocess(build)
       end
diff --git a/app/services/ci/stop_environments_service.rb b/app/services/ci/stop_environments_service.rb
index 42c72aba7dd..43c9a065fcf 100644
--- a/app/services/ci/stop_environments_service.rb
+++ b/app/services/ci/stop_environments_service.rb
@@ -5,10 +5,11 @@ module Ci
     def execute(branch_name)
       @ref = branch_name
 
-      return unless has_ref?
+      return unless @ref.present?
 
       environments.each do |environment|
-        next unless can?(current_user, :create_deployment, project)
+        next unless environment.stop_action?
+        next unless can?(current_user, :stop_environment, environment)
 
         environment.stop_with_action!(current_user)
       end
@@ -16,13 +17,10 @@ module Ci
 
     private
 
-    def has_ref?
-      @ref.present?
-    end
-
     def environments
-      @environments ||=
-        EnvironmentsFinder.new(project, current_user, ref: @ref, recently_updated: true).execute
+      @environments ||= EnvironmentsFinder
+        .new(project, current_user, ref: @ref, recently_updated: true)
+        .execute
     end
   end
 end
diff --git a/app/views/projects/ci/builds/_build.html.haml b/app/views/projects/ci/builds/_build.html.haml
index 2c3fd1fcd4d..c0019996176 100644
--- a/app/views/projects/ci/builds/_build.html.haml
+++ b/app/views/projects/ci/builds/_build.html.haml
@@ -102,7 +102,7 @@
           = link_to cancel_namespace_project_build_path(job.project.namespace, job.project, job, return_to: request.original_url), method: :post, title: 'Cancel', class: 'btn btn-build' do
             = icon('remove', class: 'cred')
         - elsif allow_retry
-          - if job.playable? && !admin
+          - if job.playable? && !admin && can?(current_user, :update_build, job)
             = link_to play_namespace_project_build_path(job.project.namespace, job.project, job, return_to: request.original_url), method: :post, title: 'Play', class: 'btn btn-build' do
               = custom_icon('icon_play')
           - elsif job.retryable?