discourse/app/controllers/drafts_controller.rb

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# frozen_string_literal: true
class DraftsController < ApplicationController
requires_login
skip_before_action :check_xhr, :preload_json
INDEX_LIMIT = 50
def index
params.permit(:offset)
stream =
Draft.stream(
user: current_user,
offset: params[:offset],
limit: fetch_limit_from_params(default: nil, max: INDEX_LIMIT),
)
render json: { drafts: stream ? serialize_data(stream, DraftSerializer) : [] }
end
def show
raise Discourse::NotFound.new if params[:id].blank?
seq = params[:sequence] || DraftSequence.current(current_user, params[:id])
render json: { draft: Draft.get(current_user, params[:id], seq), draft_sequence: seq }
end
def create
raise Discourse::NotFound.new if params[:draft_key].blank?
if params[:data].size > SiteSetting.max_draft_length
raise Discourse::InvalidParameters.new(:data)
end
begin
data = JSON.parse(params[:data])
rescue JSON::ParserError
raise Discourse::InvalidParameters.new(:data)
end
sequence =
begin
Draft.set(
current_user,
params[:draft_key],
params[:sequence].to_i,
params[:data],
params[:owner],
force_save: params[:force_save],
)
rescue Draft::OutOfSequence
begin
if !Draft.exists?(user_id: current_user.id, draft_key: params[:draft_key])
Draft.set(
current_user,
params[:draft_key],
DraftSequence.current(current_user, params[:draft_key]),
params[:data],
params[:owner],
)
else
raise Draft::OutOfSequence
end
rescue Draft::OutOfSequence
render_json_error I18n.t("draft.sequence_conflict_error.title"),
status: 409,
extras: {
description: I18n.t("draft.sequence_conflict_error.description"),
}
return
end
end
json = success_json.merge(draft_sequence: sequence)
if data.present?
# this is a bit of a kludge we need to remove (all the parsing) too many special cases here
# we need to catch action edit and action editSharedDraft
if data["postId"].present? && data["originalText"].present? &&
data["action"].to_s.start_with?("edit")
post = Post.find_by(id: data["postId"])
if post && post.raw != data["originalText"]
conflict_user = BasicUserSerializer.new(post.last_editor, root: false)
render json: json.merge(conflict_user: conflict_user)
return
end
end
end
render json: json
end
def destroy
user =
if is_api?
if @guardian.is_admin?
fetch_user_from_params
else
raise Discourse::InvalidAccess
end
else
current_user
end
begin
Draft.clear(user, params[:id], params[:sequence].to_i)
rescue Draft::OutOfSequence
# nothing really we can do here, if try clearing a draft that is not ours, just skip it.
# rendering an error causes issues in the composer
rescue StandardError => e
return render json: failed_json.merge(errors: e), status: 401
end
render json: success_json
end
end