0
0
Fork 0
mirror of https://github.com/discourse/discourse.git synced 2026-08-06 13:08:40 +08:00
discourse/app/controllers/post_actions_controller.rb
Isaac Janzen 332e23314b
FIX: Prevent flagging inaccessible topics (#42362)
## Summary

Refactors the `flag_topic` branch of
`PostActionsController#fetch_post_from_params`
(`app/controllers/post_actions_controller.rb:68`) to replace broad
exception handling with explicit topic lookup, visibility, and
first-post checks. Topics that are unavailable to the current user now
follow the standard not-found response path. Adds request coverage for
flagging an inaccessible topic.

## Source

- Patch Triage: https://patch.discourse.org/patch-triage/1325

Co-authored-by: discourse-patch-triage
<272280883+discourse-patch-triage[bot]@users.noreply.github.com>
2026-08-05 12:22:25 -05:00

92 lines
2.3 KiB
Ruby
Vendored

# frozen_string_literal: true
class PostActionsController < ApplicationController
requires_login
before_action :fetch_post_from_params
before_action :fetch_post_action_type_id_from_params
def create
raise Discourse::NotFound if @post.blank?
creator =
PostActionCreator.new(
current_user,
@post,
@post_action_type_id,
is_warning: ActiveModel::Type::Boolean.new.cast(params[:is_warning]),
message: params[:message],
take_action: params[:take_action] == "true",
flag_topic: params[:flag_topic] == "true",
queue_for_review: params[:queue_for_review] == "true",
)
result = creator.perform
if result.failed?
render_json_error(result)
else
# We need to reload or otherwise we are showing the old values on the front end
@post.reload
if @post_action_type_id == PostActionType.types[:like]
limiter = result.post_action.post_action_rate_limiter
response.headers["Discourse-Actions-Remaining"] = limiter.remaining.to_s
response.headers["Discourse-Actions-Max"] = limiter.max.to_s
end
render_post_json(@post, add_raw: false)
end
end
def destroy
result =
PostActionDestroyer.new(
current_user,
Post.find_by(id: params[:id].to_i),
@post_action_type_id,
).perform
if result.failed?
render_json_error(result)
else
if !guardian.can_see_post?(result.post)
head :no_content
else
render_post_json(result.post, add_raw: false)
end
end
end
private
def fetch_post_from_params
params.require(:id)
flag_topic = params[:flag_topic]
flag_topic = flag_topic && (flag_topic == true || flag_topic == "true")
post_id =
if flag_topic
topic = Topic.find_by(id: params[:id])
raise Discourse::NotFound unless guardian.can_see_topic?(topic)
post = topic.posts.first
raise Discourse::NotFound if post.blank?
post.id
else
params[:id]
end
finder = Post.where(id: post_id)
# Include deleted posts if the user is a staff
finder = finder.with_deleted if guardian.is_staff?
@post = finder.first
end
def fetch_post_action_type_id_from_params
params.require(:post_action_type_id)
@post_action_type_id = params[:post_action_type_id].to_i
end
end