Merge branch 'master' into glitch-soc/merge-upstream

Conflicts:
- .github/ISSUE_TEMPLATE/bug_report.md
  Took our version.
- CONTRIBUTING.md
  Updated the embedded copy of upstream's version.
- README.md
  Took our version.
- app/policies/status_policy.rb
  Not a real conflict, took code from both.
- app/views/layouts/embedded.html.haml
  Added upstream's changes (dns-prefetch) and fixed
  `%body.embed`
- app/views/settings/preferences/show.html.haml
  Reverted some of upstream changes, as we have a
  page dedicated for flavours and skins.
- config/initializers/content_security_policy.rb
  Kept our version of the CSP.
- config/initializers/doorkeeper.rb
  Not a real conflict, took code from both.

2 files changed, 18 insertions, 3 deletions

diff --git a/app/controllers/api/v1/conversations_controller.rb b/app/controllers/api/v1/conversations_controller.rb
index 736cb21ca..b19f27ebf 100644
--- a/app/controllers/api/v1/conversations_controller.rb
+++ b/app/controllers/api/v1/conversations_controller.rb
@@ -3,9 +3,11 @@
 class Api::V1::ConversationsController < Api::BaseController
   LIMIT = 20
 
-  before_action -> { doorkeeper_authorize! :read, :'read:statuses' }
+  before_action -> { doorkeeper_authorize! :read, :'read:statuses' }, only: :index
+  before_action -> { doorkeeper_authorize! :write, :'write:conversations' }, except: :index
   before_action :require_user!
-  after_action :insert_pagination_headers
+  before_action :set_conversation, except: :index
+  after_action :insert_pagination_headers, only: :index
 
   respond_to :json
 
@@ -14,8 +16,22 @@ class Api::V1::ConversationsController < Api::BaseController
     render json: @conversations, each_serializer: REST::ConversationSerializer
   end
 
+  def read
+    @conversation.update!(unread: false)
+    render json: @conversation, serializer: REST::ConversationSerializer
+  end
+
+  def destroy
+    @conversation.destroy!
+    render_empty
+  end
+
   private
 
+  def set_conversation
+    @conversation = AccountConversation.where(account: current_account).find(params[:id])
+  end
+
   def paginated_conversations
     AccountConversation.where(account: current_account)
                        .paginate_by_id(limit_param(LIMIT), params_slice(:max_id, :since_id, :min_id))
diff --git a/app/controllers/api/v1/reports_controller.rb b/app/controllers/api/v1/reports_controller.rb
index 726817927..e182a9c6c 100644
--- a/app/controllers/api/v1/reports_controller.rb
+++ b/app/controllers/api/v1/reports_controller.rb
@@ -1,7 +1,6 @@
 # frozen_string_literal: true
 
 class Api::V1::ReportsController < Api::BaseController
-  before_action -> { doorkeeper_authorize! :read, :'read:reports' }, except: [:create]
   before_action -> { doorkeeper_authorize! :write, :'write:reports' }, only: [:create]
   before_action :require_user!