mirror of
https://github.com/discourse/discourse.git
synced 2024-11-25 01:24:03 +08:00
cdc8e9de1b
This commit addresses an issue for sites where secure_uploads is turned on after the site has been operating without it for some time. When uploads are linked when they are used inside a post, we were setting the access_control_post_id unconditionally if it was NULL to that post ID and secure_uploads was true. However this causes issues if an upload has been used in a few different places, especially if a post was previously used in a PM and marked secure, so we end up with a case of the upload using a public post for its access control, which causes URLs to not use the /secure-uploads/ path in the post, breaking things like image uploads. We should only set the access_control_post_id if the post is the first time the upload is referenced so it cannot hijack uploads from other places.
1396 lines
42 KiB
Ruby
1396 lines
42 KiB
Ruby
# frozen_string_literal: true
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require "archetype"
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require "digest/sha1"
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class Post < ActiveRecord::Base
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include RateLimiter::OnCreateRecord
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include Trashable
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include Searchable
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include HasCustomFields
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include LimitedEdit
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self.ignored_columns = [
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"avg_time", # TODO(2021-01-04): remove
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"image_url", # TODO(2021-06-01): remove
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]
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cattr_accessor :plugin_permitted_create_params, :plugin_permitted_update_params
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self.plugin_permitted_create_params = {}
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self.plugin_permitted_update_params = {}
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# increase this number to force a system wide post rebake
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# Recreate `index_for_rebake_old` when the number is increased
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# Version 1, was the initial version
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# Version 2 15-12-2017, introduces CommonMark and a huge number of onebox fixes
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BAKED_VERSION = 2
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# Time between the delete and permanent delete of a post
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PERMANENT_DELETE_TIMER = 5.minutes
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rate_limit
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rate_limit :limit_posts_per_day
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belongs_to :user
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belongs_to :topic
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belongs_to :reply_to_user, class_name: "User"
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has_many :post_replies
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has_many :replies, through: :post_replies
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has_many :post_actions, dependent: :destroy
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has_many :topic_links
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has_many :group_mentions, dependent: :destroy
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has_many :upload_references, as: :target, dependent: :destroy
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has_many :uploads, through: :upload_references
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has_one :post_stat
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has_many :bookmarks, as: :bookmarkable
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has_one :incoming_email
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has_many :post_details
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has_many :post_revisions
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has_many :revisions, -> { order(:number) }, foreign_key: :post_id, class_name: "PostRevision"
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has_many :user_actions, foreign_key: :target_post_id
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belongs_to :image_upload, class_name: "Upload"
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has_many :post_hotlinked_media, dependent: :destroy, class_name: "PostHotlinkedMedia"
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has_many :reviewables, as: :target, dependent: :destroy
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validates_with PostValidator, unless: :skip_validation
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validates :edit_reason, length: { maximum: 1000 }
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after_commit :index_search
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# We can pass several creating options to a post via attributes
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attr_accessor :image_sizes,
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:quoted_post_numbers,
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:no_bump,
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:invalidate_oneboxes,
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:cooking_options,
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:skip_unique_check,
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:skip_validation
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MISSING_UPLOADS ||= "missing uploads"
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MISSING_UPLOADS_IGNORED ||= "missing uploads ignored"
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NOTICE ||= "notice"
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SHORT_POST_CHARS ||= 1200
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register_custom_field_type(MISSING_UPLOADS, :json)
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register_custom_field_type(MISSING_UPLOADS_IGNORED, :boolean)
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register_custom_field_type(NOTICE, :json)
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scope :private_posts_for_user,
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->(user) do
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where(
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"topics.id IN (#{Topic::PRIVATE_MESSAGES_SQL_USER})
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OR topics.id IN (#{Topic::PRIVATE_MESSAGES_SQL_GROUP})",
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user_id: user.id,
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)
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end
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scope :by_newest, -> { order("created_at DESC, id DESC") }
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scope :by_post_number, -> { order("post_number ASC") }
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scope :with_user, -> { includes(:user) }
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scope :created_since, ->(time_ago) { where("posts.created_at > ?", time_ago) }
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scope :public_posts,
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-> { joins(:topic).where("topics.archetype <> ?", Archetype.private_message) }
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scope :private_posts,
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-> { joins(:topic).where("topics.archetype = ?", Archetype.private_message) }
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scope :with_topic_subtype, ->(subtype) { joins(:topic).where("topics.subtype = ?", subtype) }
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scope :visible, -> { joins(:topic).where("topics.visible = true").where(hidden: false) }
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scope :secured,
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->(guardian) { where("posts.post_type IN (?)", Topic.visible_post_types(guardian&.user)) }
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scope :for_mailing_list,
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->(user, since) do
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q =
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created_since(since).joins(
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"INNER JOIN (#{Topic.for_digest(user, Time.at(0)).select(:id).to_sql}) AS digest_topics ON digest_topics.id = posts.topic_id",
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) # we want all topics with new content, regardless when they were created
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.order("posts.created_at ASC")
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q = q.where.not(post_type: Post.types[:whisper]) unless user.staff?
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q
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end
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scope :raw_match,
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->(pattern, type = "string") do
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type = type&.downcase
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case type
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when "string"
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where("raw ILIKE ?", "%#{pattern}%")
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when "regex"
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where("raw ~* ?", "(?n)#{pattern}")
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end
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end
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scope :have_uploads,
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-> do
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where(
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"
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(
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posts.cooked LIKE '%<a %' OR
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posts.cooked LIKE '%<img %' OR
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posts.cooked LIKE '%<video %'
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) AND (
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posts.cooked LIKE ? OR
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posts.cooked LIKE '%/original/%' OR
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posts.cooked LIKE '%/optimized/%' OR
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posts.cooked LIKE '%data-orig-src=%' OR
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posts.cooked LIKE '%/uploads/short-url/%'
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)",
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"%/uploads/#{RailsMultisite::ConnectionManagement.current_db}/%",
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)
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end
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delegate :username, to: :user
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def self.hidden_reasons
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@hidden_reasons ||=
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Enum.new(
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flag_threshold_reached: 1,
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flag_threshold_reached_again: 2,
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new_user_spam_threshold_reached: 3,
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flagged_by_tl3_user: 4,
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email_spam_header_found: 5,
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flagged_by_tl4_user: 6,
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email_authentication_result_header: 7,
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imported_as_unlisted: 8,
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)
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end
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def self.types
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@types ||= Enum.new(regular: 1, moderator_action: 2, small_action: 3, whisper: 4)
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end
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def self.cook_methods
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@cook_methods ||= Enum.new(regular: 1, raw_html: 2, email: 3)
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end
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def self.notices
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@notices ||= Enum.new(custom: "custom", new_user: "new_user", returning_user: "returning_user")
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end
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def self.find_by_detail(key, value)
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includes(:post_details).find_by(post_details: { key: key, value: value })
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end
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def self.find_by_number(topic_id, post_number)
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find_by(topic_id: topic_id, post_number: post_number)
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end
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def whisper?
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post_type == Post.types[:whisper]
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end
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def add_detail(key, value, extra = nil)
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post_details.build(key: key, value: value, extra: extra)
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end
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def limit_posts_per_day
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if user && user.new_user_posting_on_first_day? && post_number && post_number > 1
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RateLimiter.new(
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user,
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"first-day-replies-per-day",
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SiteSetting.max_replies_in_first_day,
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1.day.to_i,
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)
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end
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end
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def readers_count
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read_count = reads - 1 # Excludes poster
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read_count < 0 ? 0 : read_count
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end
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def publish_change_to_clients!(type, opts = {})
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# special failsafe for posts missing topics consistency checks should fix,
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# but message is safe to skip
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return unless topic
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skip_topic_stats = opts.delete(:skip_topic_stats)
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message = {
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id: id,
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post_number: post_number,
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updated_at: Time.now,
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user_id: user_id,
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last_editor_id: last_editor_id,
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type: type,
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version: version,
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}.merge(opts)
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publish_message!("/topic/#{topic_id}", message)
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Topic.publish_stats_to_clients!(topic.id, type) unless skip_topic_stats
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end
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def publish_message!(channel, message, opts = {})
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return unless topic
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if Topic.visible_post_types.include?(post_type)
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opts.merge!(topic.secure_audience_publish_messages)
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else
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opts[:user_ids] = User.human_users.where("admin OR moderator OR id = ?", user_id).pluck(:id)
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end
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MessageBus.publish(channel, message, opts) if opts[:user_ids] != [] && opts[:group_ids] != []
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end
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def trash!(trashed_by = nil)
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self.topic_links.each(&:destroy)
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self.save_custom_fields if self.custom_fields.delete(Post::NOTICE)
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super(trashed_by)
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end
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def recover!
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super
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recover_public_post_actions
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TopicLink.extract_from(self)
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QuotedPost.extract_from(self)
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topic.category.update_latest if topic && topic.category_id && topic.category
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end
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# The key we use in redis to ensure unique posts
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def unique_post_key
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"unique#{topic&.private_message? ? "-pm" : ""}-post-#{user_id}:#{raw_hash}"
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end
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def store_unique_post_key
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if SiteSetting.unique_posts_mins > 0
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Discourse.redis.setex(unique_post_key, SiteSetting.unique_posts_mins.minutes.to_i, id)
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end
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end
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def matches_recent_post?
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post_id = Discourse.redis.get(unique_post_key)
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post_id != (nil) && post_id.to_i != (id)
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end
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def raw_hash
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return if raw.blank?
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Digest::SHA1.hexdigest(raw)
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end
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def self.allowed_image_classes
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@allowed_image_classes ||= %w[avatar favicon thumbnail emoji ytp-thumbnail-image]
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end
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def post_analyzer
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@post_analyzers ||= {}
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@post_analyzers[raw_hash] ||= PostAnalyzer.new(raw, topic_id)
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end
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%w[
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raw_mentions
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linked_hosts
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embedded_media_count
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attachment_count
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link_count
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raw_links
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has_oneboxes?
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].each { |attr| define_method(attr) { post_analyzer.public_send(attr) } }
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def add_nofollow?
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return false if user&.staff?
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user.blank? || SiteSetting.tl3_links_no_follow? || !user.has_trust_level?(TrustLevel[3])
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end
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def omit_nofollow?
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!add_nofollow?
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end
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def cook(raw, opts = {})
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# For some posts, for example those imported via RSS, we support raw HTML. In that
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# case we can skip the rendering pipeline.
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return raw if cook_method == Post.cook_methods[:raw_html]
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options = opts.dup
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options[:cook_method] = cook_method
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# A rule in our Markdown pipeline may have Guardian checks that require a
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# user to be present. The last editing user of the post will be more
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# generally up to date than the creating user. For example, we use
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# this when cooking #hashtags to determine whether we should render
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# the found hashtag based on whether the user can access the category it
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# is referencing.
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options[:user_id] = self.last_editor_id
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options[:omit_nofollow] = true if omit_nofollow?
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if self.should_secure_uploads?
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each_upload_url do |url|
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uri = URI.parse(url)
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if FileHelper.is_supported_media?(File.basename(uri.path))
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raw =
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raw.sub(
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url,
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Rails.application.routes.url_for(
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controller: "uploads",
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action: "show_secure",
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path: uri.path[1..-1],
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host: Discourse.current_hostname,
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),
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)
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end
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end
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end
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cooked = post_analyzer.cook(raw, options)
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new_cooked = Plugin::Filter.apply(:after_post_cook, self, cooked)
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if post_type == Post.types[:regular]
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if new_cooked != cooked && new_cooked.blank?
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Rails.logger.debug("Plugin is blanking out post: #{self.url}\nraw: #{raw}")
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elsif new_cooked.blank?
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Rails.logger.debug("Blank post detected post: #{self.url}\nraw: #{raw}")
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end
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end
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new_cooked
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end
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# Sometimes the post is being edited by someone else, for example, a mod.
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# If that's the case, they should not be bound by the original poster's
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# restrictions, for example on not posting images.
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def acting_user
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@acting_user || user
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end
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def acting_user=(pu)
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@acting_user = pu
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end
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def last_editor
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self.last_editor_id ? (User.find_by_id(self.last_editor_id) || user) : user
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end
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def allowed_spam_hosts
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hosts =
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SiteSetting
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.allowed_spam_host_domains
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.split("|")
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.map { |h| h.strip }
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.reject { |h| !h.include?(".") }
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hosts << GlobalSetting.hostname
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hosts << RailsMultisite::ConnectionManagement.current_hostname
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end
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def total_hosts_usage
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hosts = linked_hosts.clone
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allowlisted = allowed_spam_hosts
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hosts.reject! { |h| allowlisted.any? { |w| h.end_with?(w) } }
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return hosts if hosts.length == 0
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TopicLink
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.where(domain: hosts.keys, user_id: acting_user.id)
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.group(:domain, :post_id)
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.count
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.each_key do |tuple|
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domain = tuple[0]
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hosts[domain] = (hosts[domain] || 0) + 1
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end
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hosts
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end
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# Prevent new users from posting the same hosts too many times.
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def has_host_spam?
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if acting_user.present? &&
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(
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acting_user.staged? || acting_user.mature_staged? ||
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acting_user.has_trust_level?(TrustLevel[1])
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)
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return false
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end
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return false if topic&.private_message?
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total_hosts_usage.values.any? { |count| count >= SiteSetting.newuser_spam_host_threshold }
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end
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def archetype
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topic&.archetype
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end
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def self.regular_order
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order(:sort_order, :post_number)
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end
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def self.reverse_order
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order("sort_order desc, post_number desc")
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end
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def self.summary(topic_id)
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topic_id = topic_id.to_i
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# percent rank has tons of ties
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where(topic_id: topic_id).where(
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[
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"posts.id = ANY(
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(
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SELECT posts.id
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FROM posts
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WHERE posts.topic_id = #{topic_id.to_i}
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AND posts.post_number = 1
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) UNION
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(
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SELECT p1.id
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FROM posts p1
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WHERE p1.percent_rank <= ?
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AND p1.topic_id = #{topic_id.to_i}
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ORDER BY p1.percent_rank
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LIMIT ?
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)
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)",
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SiteSetting.summary_percent_filter.to_f / 100.0,
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SiteSetting.summary_max_results,
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],
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)
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end
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def delete_post_notices
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self.custom_fields.delete(Post::NOTICE)
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self.save_custom_fields
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end
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def recover_public_post_actions
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PostAction
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.publics
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.with_deleted
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.where(post_id: self.id, id: self.custom_fields["deleted_public_actions"])
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.find_each do |post_action|
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post_action.recover!
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post_action.save!
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end
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self.custom_fields.delete("deleted_public_actions")
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self.save_custom_fields
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end
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|
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def filter_quotes(parent_post = nil)
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return cooked if parent_post.blank?
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|
|
# We only filter quotes when there is exactly 1
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return cooked unless (quote_count == 1)
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parent_raw = parent_post.raw.sub(%r{\[quote.+/quote\]}m, "")
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if raw[parent_raw] || (parent_raw.size < SHORT_POST_CHARS)
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return cooked.sub(%r{\<aside.+\</aside\>}m, "")
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end
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cooked
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end
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def external_id
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|
"#{topic_id}/#{post_number}"
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end
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def reply_to_post
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|
return if reply_to_post_number.blank?
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@reply_to_post ||=
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Post.find_by(
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"topic_id = :topic_id AND post_number = :post_number",
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topic_id: topic_id,
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post_number: reply_to_post_number,
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)
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end
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|
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def reply_notification_target
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|
return if reply_to_post_number.blank?
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Post.find_by(
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"topic_id = :topic_id AND post_number = :post_number AND user_id <> :user_id",
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topic_id: topic_id,
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post_number: reply_to_post_number,
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user_id: user_id,
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).try(:user)
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end
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def self.excerpt(cooked, maxlength = nil, options = {})
|
|
maxlength ||= SiteSetting.post_excerpt_maxlength
|
|
PrettyText.excerpt(cooked, maxlength, options)
|
|
end
|
|
|
|
# Strip out most of the markup
|
|
def excerpt(maxlength = nil, options = {})
|
|
Post.excerpt(cooked, maxlength, options.merge(post: self))
|
|
end
|
|
|
|
def excerpt_for_topic
|
|
Post.excerpt(
|
|
cooked,
|
|
SiteSetting.topic_excerpt_maxlength,
|
|
strip_links: true,
|
|
strip_images: true,
|
|
post: self,
|
|
)
|
|
end
|
|
|
|
def is_first_post?
|
|
post_number.blank? ? topic.try(:highest_post_number) == 0 : post_number == 1
|
|
end
|
|
|
|
def is_category_description?
|
|
topic.present? && topic.is_category_topic? && is_first_post?
|
|
end
|
|
|
|
def is_reply_by_email?
|
|
via_email && post_number.present? && post_number > 1
|
|
end
|
|
|
|
def is_flagged?
|
|
flags.count != 0
|
|
end
|
|
|
|
def flags
|
|
post_actions.where(
|
|
post_action_type_id: PostActionType.flag_types_without_custom.values,
|
|
deleted_at: nil,
|
|
)
|
|
end
|
|
|
|
def reviewable_flag
|
|
ReviewableFlaggedPost.pending.find_by(target: self)
|
|
end
|
|
|
|
# NOTE (martin): This is turning into hack city; when changing this also
|
|
# consider how it interacts with UploadSecurity and the uploads.rake tasks.
|
|
def should_secure_uploads?
|
|
return false if !SiteSetting.secure_uploads?
|
|
topic_including_deleted = Topic.with_deleted.find_by(id: self.topic_id)
|
|
return false if topic_including_deleted.blank?
|
|
|
|
# NOTE: This is to be used for plugins where adding a new public upload
|
|
# type that should not be secured via UploadSecurity.register_custom_public_type
|
|
# is not an option. This also is not taken into account in the secure upload
|
|
# rake tasks, and will more than likely change in future.
|
|
modifier_result =
|
|
DiscoursePluginRegistry.apply_modifier(
|
|
:post_should_secure_uploads?,
|
|
nil,
|
|
self,
|
|
topic_including_deleted,
|
|
)
|
|
return modifier_result if !modifier_result.nil?
|
|
|
|
# NOTE: This is meant to be a stopgap solution to prevent secure uploads
|
|
# in a single place (private messages) for sensitive admin data exports.
|
|
# Ideally we would want a more comprehensive way of saying that certain
|
|
# upload types get secured which is a hybrid/mixed mode secure uploads,
|
|
# but for now this will do the trick.
|
|
return topic_including_deleted.private_message? if SiteSetting.secure_uploads_pm_only?
|
|
|
|
SiteSetting.login_required? || topic_including_deleted.private_message? ||
|
|
topic_including_deleted.read_restricted_category?
|
|
end
|
|
|
|
def hide!(post_action_type_id, reason = nil, custom_message: nil)
|
|
return if hidden?
|
|
|
|
reason ||=
|
|
(
|
|
if hidden_at
|
|
Post.hidden_reasons[:flag_threshold_reached_again]
|
|
else
|
|
Post.hidden_reasons[:flag_threshold_reached]
|
|
end
|
|
)
|
|
|
|
hiding_again = hidden_at.present?
|
|
|
|
Post.transaction do
|
|
self.skip_validation = true
|
|
|
|
update!(hidden: true, hidden_at: Time.zone.now, hidden_reason_id: reason)
|
|
|
|
Topic.where(
|
|
"id = :topic_id AND NOT EXISTS(SELECT 1 FROM POSTS WHERE topic_id = :topic_id AND NOT hidden)",
|
|
topic_id: topic_id,
|
|
).update_all(visible: false)
|
|
|
|
UserStatCountUpdater.decrement!(self)
|
|
end
|
|
|
|
# inform user
|
|
if user.present?
|
|
options = {
|
|
url: url,
|
|
edit_delay: SiteSetting.cooldown_minutes_after_hiding_posts,
|
|
flag_reason:
|
|
I18n.t(
|
|
"flag_reasons.#{PostActionType.types[post_action_type_id]}",
|
|
locale: SiteSetting.default_locale,
|
|
base_path: Discourse.base_path,
|
|
),
|
|
}
|
|
|
|
message = custom_message
|
|
message = hiding_again ? :post_hidden_again : :post_hidden if message.nil?
|
|
|
|
Jobs.enqueue_in(
|
|
5.seconds,
|
|
:send_system_message,
|
|
user_id: user.id,
|
|
message_type: message.to_s,
|
|
message_options: options,
|
|
)
|
|
end
|
|
end
|
|
|
|
def unhide!
|
|
Post.transaction do
|
|
self.update!(hidden: false)
|
|
self.topic.update(visible: true) if is_first_post?
|
|
UserStatCountUpdater.increment!(self)
|
|
save(validate: false)
|
|
end
|
|
|
|
publish_change_to_clients!(:acted)
|
|
end
|
|
|
|
def full_url(opts = {})
|
|
"#{Discourse.base_url}#{url(opts)}"
|
|
end
|
|
|
|
def relative_url(opts = {})
|
|
"#{Discourse.base_path}#{url(opts)}"
|
|
end
|
|
|
|
def url(opts = nil)
|
|
opts ||= {}
|
|
|
|
if topic
|
|
Post.url(topic.slug, topic.id, post_number, opts)
|
|
else
|
|
"/404"
|
|
end
|
|
end
|
|
|
|
def canonical_url
|
|
topic_view = TopicView.new(topic, nil, post_number: post_number)
|
|
|
|
page = ""
|
|
|
|
page = "?page=#{topic_view.page}" if topic_view.page > 1
|
|
|
|
"#{topic.url}#{page}#post_#{post_number}"
|
|
end
|
|
|
|
def unsubscribe_url(user)
|
|
key_value = UnsubscribeKey.create_key_for(user, UnsubscribeKey::TOPIC_TYPE, post: self)
|
|
|
|
"#{Discourse.base_url}/email/unsubscribe/#{key_value}"
|
|
end
|
|
|
|
def self.url(slug, topic_id, post_number, opts = nil)
|
|
opts ||= {}
|
|
|
|
result = +"/t/"
|
|
result << "#{slug}/" if !opts[:without_slug]
|
|
|
|
if post_number == 1 && opts[:share_url]
|
|
"#{result}#{topic_id}"
|
|
else
|
|
"#{result}#{topic_id}/#{post_number}"
|
|
end
|
|
end
|
|
|
|
def self.urls(post_ids)
|
|
ids = post_ids.map { |u| u }
|
|
if ids.length > 0
|
|
urls = {}
|
|
Topic
|
|
.joins(:posts)
|
|
.where("posts.id" => ids)
|
|
.select(["posts.id as post_id", "post_number", "topics.slug", "topics.title", "topics.id"])
|
|
.each { |t| urls[t.post_id.to_i] = url(t.slug, t.id, t.post_number) }
|
|
urls
|
|
else
|
|
{}
|
|
end
|
|
end
|
|
|
|
def revise(updated_by, changes = {}, opts = {})
|
|
PostRevisor.new(self).revise!(updated_by, changes, opts)
|
|
end
|
|
|
|
def self.rebake_old(limit, priority: :normal, rate_limiter: true)
|
|
limiter =
|
|
RateLimiter.new(
|
|
nil,
|
|
"global_periodical_rebake_limit",
|
|
GlobalSetting.max_old_rebakes_per_15_minutes,
|
|
900,
|
|
global: true,
|
|
)
|
|
|
|
problems = []
|
|
Post
|
|
.where("baked_version IS NULL OR baked_version < ?", BAKED_VERSION)
|
|
.order("id desc")
|
|
.limit(limit)
|
|
.pluck(:id)
|
|
.each do |id|
|
|
begin
|
|
break if !limiter.can_perform?
|
|
|
|
post = Post.find(id)
|
|
post.rebake!(priority: priority)
|
|
|
|
begin
|
|
limiter.performed! if rate_limiter
|
|
rescue RateLimiter::LimitExceeded
|
|
break
|
|
end
|
|
rescue => e
|
|
problems << { post: post, ex: e }
|
|
|
|
attempts = post.custom_fields["rebake_attempts"].to_i
|
|
|
|
if attempts > 3
|
|
post.update_columns(baked_version: BAKED_VERSION)
|
|
Discourse.warn_exception(
|
|
e,
|
|
message: "Can not rebake post# #{post.id} after 3 attempts, giving up",
|
|
)
|
|
else
|
|
post.custom_fields["rebake_attempts"] = attempts + 1
|
|
post.save_custom_fields
|
|
end
|
|
end
|
|
end
|
|
problems
|
|
end
|
|
|
|
def rebake!(invalidate_broken_images: false, invalidate_oneboxes: false, priority: nil)
|
|
new_cooked = cook(raw, topic_id: topic_id, invalidate_oneboxes: invalidate_oneboxes)
|
|
old_cooked = cooked
|
|
|
|
update_columns(cooked: new_cooked, baked_at: Time.zone.now, baked_version: BAKED_VERSION)
|
|
|
|
topic&.update_excerpt(excerpt_for_topic) if is_first_post?
|
|
|
|
if invalidate_broken_images
|
|
post_hotlinked_media.download_failed.destroy_all
|
|
post_hotlinked_media.upload_create_failed.destroy_all
|
|
end
|
|
|
|
# Extracts urls from the body
|
|
TopicLink.extract_from(self)
|
|
QuotedPost.extract_from(self)
|
|
|
|
# make sure we trigger the post process
|
|
trigger_post_process(bypass_bump: true, priority: priority)
|
|
|
|
publish_change_to_clients!(:rebaked)
|
|
|
|
new_cooked != old_cooked
|
|
end
|
|
|
|
def set_owner(new_user, actor, skip_revision = false)
|
|
return if user_id == new_user.id
|
|
|
|
edit_reason = I18n.t("change_owner.post_revision_text", locale: SiteSetting.default_locale)
|
|
|
|
revise(
|
|
actor,
|
|
{ raw: self.raw, user_id: new_user.id, edit_reason: edit_reason },
|
|
bypass_bump: true,
|
|
skip_revision: skip_revision,
|
|
skip_validations: true,
|
|
)
|
|
|
|
topic.update_columns(last_post_user_id: new_user.id) if post_number == topic.highest_post_number
|
|
end
|
|
|
|
before_create { PostCreator.before_create_tasks(self) }
|
|
|
|
def self.estimate_posts_per_day
|
|
val = Discourse.redis.get("estimated_posts_per_day")
|
|
return val.to_i if val
|
|
|
|
posts_per_day =
|
|
Topic.listable_topics.secured.joins(:posts).merge(Post.created_since(30.days.ago)).count / 30
|
|
Discourse.redis.setex("estimated_posts_per_day", 1.day.to_i, posts_per_day.to_s)
|
|
posts_per_day
|
|
end
|
|
|
|
before_save do
|
|
self.last_editor_id ||= user_id
|
|
|
|
if will_save_change_to_raw?
|
|
self.cooked = cook(raw, topic_id: topic_id) if !new_record?
|
|
self.baked_at = Time.zone.now
|
|
self.baked_version = BAKED_VERSION
|
|
end
|
|
end
|
|
|
|
def advance_draft_sequence
|
|
return if topic.blank? # could be deleted
|
|
DraftSequence.next!(last_editor_id, topic.draft_key) if last_editor_id
|
|
end
|
|
|
|
# TODO: move to post-analyzer?
|
|
# Determine what posts are quoted by this post
|
|
def extract_quoted_post_numbers
|
|
temp_collector = []
|
|
|
|
# Create relationships for the quotes
|
|
raw
|
|
.scan(/\[quote=\"([^"]+)"\]/)
|
|
.each do |quote|
|
|
args = parse_quote_into_arguments(quote)
|
|
# If the topic attribute is present, ensure it's the same topic
|
|
if !(args[:topic].present? && topic_id != args[:topic]) && args[:post] != post_number
|
|
temp_collector << args[:post]
|
|
end
|
|
end
|
|
|
|
temp_collector.uniq!
|
|
self.quoted_post_numbers = temp_collector
|
|
self.quote_count = temp_collector.size
|
|
end
|
|
|
|
def save_reply_relationships
|
|
add_to_quoted_post_numbers(reply_to_post_number)
|
|
return if self.quoted_post_numbers.blank?
|
|
|
|
# Create a reply relationship between quoted posts and this new post
|
|
self.quoted_post_numbers.each do |p|
|
|
post = Post.find_by(topic_id: topic_id, post_number: p)
|
|
create_reply_relationship_with(post)
|
|
end
|
|
end
|
|
|
|
# Enqueue post processing for this post
|
|
def trigger_post_process(
|
|
bypass_bump: false,
|
|
priority: :normal,
|
|
new_post: false,
|
|
skip_pull_hotlinked_images: false
|
|
)
|
|
args = {
|
|
bypass_bump: bypass_bump,
|
|
cooking_options: self.cooking_options,
|
|
new_post: new_post,
|
|
post_id: self.id,
|
|
skip_pull_hotlinked_images: skip_pull_hotlinked_images,
|
|
}
|
|
|
|
args[:image_sizes] = image_sizes if self.image_sizes.present?
|
|
args[:invalidate_oneboxes] = true if self.invalidate_oneboxes.present?
|
|
args[:queue] = priority.to_s if priority && priority != :normal
|
|
|
|
Jobs.enqueue(:process_post, args)
|
|
DiscourseEvent.trigger(:after_trigger_post_process, self)
|
|
end
|
|
|
|
def self.public_posts_count_per_day(
|
|
start_date,
|
|
end_date,
|
|
category_id = nil,
|
|
include_subcategories = false,
|
|
group_ids = nil
|
|
)
|
|
result =
|
|
public_posts.where(
|
|
"posts.created_at >= ? AND posts.created_at <= ?",
|
|
start_date,
|
|
end_date,
|
|
).where(post_type: Post.types[:regular])
|
|
|
|
if category_id
|
|
if include_subcategories
|
|
result = result.where("topics.category_id IN (?)", Category.subcategory_ids(category_id))
|
|
else
|
|
result = result.where("topics.category_id IN (?)", category_id)
|
|
end
|
|
end
|
|
if group_ids
|
|
result =
|
|
result
|
|
.joins("INNER JOIN users ON users.id = posts.user_id")
|
|
.joins("INNER JOIN group_users ON group_users.user_id = users.id")
|
|
.where("group_users.group_id IN (?)", group_ids)
|
|
end
|
|
|
|
result.group("date(posts.created_at)").order("date(posts.created_at)").count
|
|
end
|
|
|
|
def self.private_messages_count_per_day(start_date, end_date, topic_subtype)
|
|
private_posts
|
|
.with_topic_subtype(topic_subtype)
|
|
.where("posts.created_at >= ? AND posts.created_at <= ?", start_date, end_date)
|
|
.group("date(posts.created_at)")
|
|
.order("date(posts.created_at)")
|
|
.count
|
|
end
|
|
|
|
def reply_history(max_replies = 100, guardian = nil)
|
|
post_ids = DB.query_single(<<~SQL, post_id: id, topic_id: topic_id)
|
|
WITH RECURSIVE breadcrumb(id, reply_to_post_number) AS (
|
|
SELECT p.id, p.reply_to_post_number FROM posts AS p
|
|
WHERE p.id = :post_id
|
|
UNION
|
|
SELECT p.id, p.reply_to_post_number FROM posts AS p, breadcrumb
|
|
WHERE breadcrumb.reply_to_post_number = p.post_number
|
|
AND p.topic_id = :topic_id
|
|
)
|
|
SELECT id from breadcrumb
|
|
WHERE id <> :post_id
|
|
ORDER by id
|
|
SQL
|
|
|
|
# [1,2,3][-10,-1] => nil
|
|
post_ids = (post_ids[(0 - max_replies)..-1] || post_ids)
|
|
|
|
Post.secured(guardian).where(id: post_ids).includes(:user, :topic).order(:id).to_a
|
|
end
|
|
|
|
MAX_REPLY_LEVEL ||= 1000
|
|
|
|
def reply_ids(guardian = nil, only_replies_to_single_post: true)
|
|
builder = DB.build(<<~SQL)
|
|
WITH RECURSIVE breadcrumb(id, level) AS (
|
|
SELECT :post_id, 0
|
|
UNION
|
|
SELECT reply_post_id, level + 1
|
|
FROM post_replies AS r
|
|
JOIN posts AS p ON p.id = reply_post_id
|
|
JOIN breadcrumb AS b ON (r.post_id = b.id)
|
|
WHERE r.post_id <> r.reply_post_id
|
|
AND b.level < :max_reply_level
|
|
AND p.topic_id = :topic_id
|
|
), breadcrumb_with_count AS (
|
|
SELECT
|
|
id,
|
|
level,
|
|
COUNT(*) AS count
|
|
FROM post_replies AS r
|
|
JOIN breadcrumb AS b ON (r.reply_post_id = b.id)
|
|
WHERE r.reply_post_id <> r.post_id
|
|
GROUP BY id, level
|
|
)
|
|
SELECT id, MIN(level) AS level
|
|
FROM breadcrumb_with_count
|
|
/*where*/
|
|
GROUP BY id
|
|
ORDER BY id
|
|
SQL
|
|
|
|
builder.where("level > 0")
|
|
|
|
# ignore posts that aren't replies to exactly one post
|
|
# for example it skips a post when it contains 2 quotes (which are replies) from different posts
|
|
builder.where("count = 1") if only_replies_to_single_post
|
|
|
|
replies = builder.query_hash(post_id: id, max_reply_level: MAX_REPLY_LEVEL, topic_id: topic_id)
|
|
replies.each { |r| r.symbolize_keys! }
|
|
|
|
secured_ids = Post.secured(guardian).where(id: replies.map { |r| r[:id] }).pluck(:id).to_set
|
|
|
|
replies.reject { |r| !secured_ids.include?(r[:id]) }
|
|
end
|
|
|
|
def revert_to(number)
|
|
return if number >= version
|
|
post_revision = PostRevision.find_by(post_id: id, number: (number + 1))
|
|
post_revision.modifications.each do |attribute, change|
|
|
attribute = "version" if attribute == "cached_version"
|
|
write_attribute(attribute, change[0])
|
|
end
|
|
end
|
|
|
|
def self.rebake_all_quoted_posts(user_id)
|
|
return if user_id.blank?
|
|
|
|
DB.exec(<<~SQL, user_id)
|
|
WITH user_quoted_posts AS (
|
|
SELECT post_id
|
|
FROM quoted_posts
|
|
WHERE quoted_post_id IN (SELECT id FROM posts WHERE user_id = ?)
|
|
)
|
|
UPDATE posts
|
|
SET baked_version = NULL
|
|
WHERE baked_version IS NOT NULL
|
|
AND id IN (SELECT post_id FROM user_quoted_posts)
|
|
SQL
|
|
end
|
|
|
|
def seen?(user)
|
|
PostTiming.where(topic_id: topic_id, post_number: post_number, user_id: user.id).exists?
|
|
end
|
|
|
|
def index_search
|
|
Scheduler::Defer.later "Index post for search" do
|
|
SearchIndexer.index(self)
|
|
end
|
|
end
|
|
|
|
def locked?
|
|
locked_by_id.present?
|
|
end
|
|
|
|
def link_post_uploads(fragments: nil)
|
|
upload_ids = []
|
|
|
|
each_upload_url(fragments: fragments) do |src, _, sha1|
|
|
upload = nil
|
|
upload = Upload.find_by(sha1: sha1) if sha1.present?
|
|
upload ||= Upload.get_from_url(src)
|
|
|
|
# Link any video thumbnails
|
|
if SiteSetting.video_thumbnails_enabled && upload.present? &&
|
|
FileHelper.supported_video.include?(upload.extension&.downcase)
|
|
# Video thumbnails have the filename of the video file sha1 with a .png or .jpg extension.
|
|
# This is because at time of upload in the composer we don't know the topic/post id yet
|
|
# and there is no thumbnail info added to the markdown to tie the thumbnail to the topic/post after
|
|
# creation.
|
|
thumbnail =
|
|
Upload
|
|
.where("original_filename like ?", "#{upload.sha1}.%")
|
|
.order(id: :desc)
|
|
.first if upload.sha1.present?
|
|
if thumbnail.present?
|
|
upload_ids << thumbnail.id
|
|
if self.is_first_post? && !self.topic.image_upload_id
|
|
self.topic.update_column(:image_upload_id, thumbnail.id)
|
|
extra_sizes =
|
|
ThemeModifierHelper.new(
|
|
theme_ids: Theme.user_selectable.pluck(:id),
|
|
).topic_thumbnail_sizes
|
|
self.topic.generate_thumbnails!(extra_sizes: extra_sizes)
|
|
end
|
|
end
|
|
end
|
|
upload_ids << upload.id if upload.present?
|
|
end
|
|
|
|
upload_references =
|
|
upload_ids.map do |upload_id|
|
|
{
|
|
target_id: self.id,
|
|
target_type: self.class.name,
|
|
upload_id: upload_id,
|
|
created_at: Time.zone.now,
|
|
updated_at: Time.zone.now,
|
|
}
|
|
end
|
|
|
|
UploadReference.transaction do
|
|
UploadReference.where(target: self).delete_all
|
|
UploadReference.insert_all(upload_references) if upload_references.size > 0
|
|
|
|
# NOTE: The access_control_post_id needs to be set whenever a post is linked to an upload
|
|
# when secure uploads is enabled because it is later used for UploadSecurity checks.
|
|
# The caveat here is that access_control_post_id should only be set if this post is
|
|
# the first time the upload is referenced, otherwise we can end up hijacking upload
|
|
# ownership from other posts.
|
|
if SiteSetting.secure_uploads?
|
|
uploads_in_post =
|
|
Upload
|
|
.joins(:upload_references)
|
|
.includes(:upload_references)
|
|
.where(id: upload_ids, access_control_post_id: nil)
|
|
.where("uploads.id NOT IN (SELECT upload_id FROM custom_emojis)")
|
|
|
|
access_control_will_change_upload_ids =
|
|
uploads_in_post.filter_map do |upl|
|
|
first_ref = upl.upload_references.min_by { |ur| [ur.created_at, ur.id] }
|
|
upl.id if first_ref.blank? || first_ref.target?(self)
|
|
end
|
|
|
|
Upload.where(id: access_control_will_change_upload_ids).update_all(
|
|
access_control_post_id: self.id,
|
|
)
|
|
end
|
|
end
|
|
end
|
|
|
|
def update_uploads_secure_status(source:)
|
|
if Discourse.store.external?
|
|
self.uploads.each { |upload| upload.update_secure_status(source: source) }
|
|
end
|
|
end
|
|
|
|
def each_upload_url(fragments: nil, include_local_upload: true)
|
|
current_db = RailsMultisite::ConnectionManagement.current_db
|
|
upload_patterns = [
|
|
%r{/uploads/#{current_db}/},
|
|
%r{/original/},
|
|
%r{/optimized/},
|
|
%r{/uploads/short-url/[a-zA-Z0-9]+(\.[a-z0-9]+)?},
|
|
]
|
|
|
|
fragments ||= Nokogiri::HTML5.fragment(self.cooked)
|
|
selectors =
|
|
fragments.css(
|
|
"a/@href",
|
|
"img/@src",
|
|
"source/@src",
|
|
"track/@src",
|
|
"video/@poster",
|
|
"div/@data-video-src",
|
|
)
|
|
|
|
links =
|
|
selectors
|
|
.map do |media|
|
|
src = media.value
|
|
next if src.blank?
|
|
|
|
if src.end_with?("/images/transparent.png") &&
|
|
(parent = media.parent)["data-orig-src"].present?
|
|
parent["data-orig-src"]
|
|
else
|
|
src
|
|
end
|
|
end
|
|
.compact
|
|
.uniq
|
|
|
|
links.each do |src|
|
|
src = src.split("?")[0]
|
|
|
|
if src.start_with?("upload://")
|
|
sha1 = Upload.sha1_from_short_url(src)
|
|
yield(src, nil, sha1)
|
|
next
|
|
elsif src.include?("/uploads/short-url/")
|
|
sha1 = Upload.sha1_from_short_path(src)
|
|
yield(src, nil, sha1)
|
|
next
|
|
end
|
|
|
|
next if upload_patterns.none? { |pattern| src =~ pattern }
|
|
next if Rails.configuration.multisite && src.exclude?(current_db)
|
|
|
|
src = "#{SiteSetting.force_https ? "https" : "http"}:#{src}" if src.start_with?("//")
|
|
if !Discourse.store.has_been_uploaded?(src) && !Upload.secure_uploads_url?(src) &&
|
|
!(include_local_upload && src =~ %r{\A/[^/]}i)
|
|
next
|
|
end
|
|
|
|
path =
|
|
begin
|
|
URI(
|
|
UrlHelper.unencode(GlobalSetting.cdn_url ? src.sub(GlobalSetting.cdn_url, "") : src),
|
|
)&.path
|
|
rescue URI::Error
|
|
end
|
|
|
|
next if path.blank?
|
|
|
|
sha1 =
|
|
if path.include? "optimized"
|
|
OptimizedImage.extract_sha1(path)
|
|
else
|
|
Upload.extract_sha1(path) || Upload.sha1_from_short_path(path)
|
|
end
|
|
|
|
yield(src, path, sha1)
|
|
end
|
|
end
|
|
|
|
def self.find_missing_uploads(include_local_upload: true)
|
|
missing_uploads = []
|
|
missing_post_uploads = {}
|
|
count = 0
|
|
|
|
DistributedMutex.synchronize("find_missing_uploads", validity: 30.minutes) do
|
|
PostCustomField.where(name: Post::MISSING_UPLOADS).delete_all
|
|
query =
|
|
Post
|
|
.have_uploads
|
|
.joins(:topic)
|
|
.joins(
|
|
"LEFT JOIN post_custom_fields ON posts.id = post_custom_fields.post_id AND post_custom_fields.name = '#{Post::MISSING_UPLOADS_IGNORED}'",
|
|
)
|
|
.where("post_custom_fields.id IS NULL")
|
|
.select(:id, :cooked)
|
|
|
|
query.find_in_batches do |posts|
|
|
ids = posts.pluck(:id)
|
|
sha1s =
|
|
Upload
|
|
.joins(:upload_references)
|
|
.where(upload_references: { target_type: "Post" })
|
|
.where("upload_references.target_id BETWEEN ? AND ?", ids.min, ids.max)
|
|
.pluck(:sha1)
|
|
|
|
posts.each do |post|
|
|
post.each_upload_url do |src, path, sha1|
|
|
next if sha1.present? && sha1s.include?(sha1)
|
|
|
|
missing_post_uploads[post.id] ||= []
|
|
|
|
if missing_uploads.include?(src)
|
|
missing_post_uploads[post.id] << src
|
|
next
|
|
end
|
|
|
|
upload_id = nil
|
|
upload_id = Upload.where(sha1: sha1).pick(:id) if sha1.present?
|
|
upload_id ||= yield(post, src, path, sha1)
|
|
|
|
if upload_id.blank?
|
|
missing_uploads << src
|
|
missing_post_uploads[post.id] << src
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
missing_post_uploads =
|
|
missing_post_uploads.reject do |post_id, uploads|
|
|
if uploads.present?
|
|
PostCustomField.create!(
|
|
post_id: post_id,
|
|
name: Post::MISSING_UPLOADS,
|
|
value: uploads.to_json,
|
|
)
|
|
count += uploads.count
|
|
end
|
|
|
|
uploads.empty?
|
|
end
|
|
end
|
|
|
|
{ uploads: missing_uploads, post_uploads: missing_post_uploads, count: count }
|
|
end
|
|
|
|
def owned_uploads_via_access_control
|
|
Upload.where(access_control_post_id: self.id)
|
|
end
|
|
|
|
def image_url
|
|
raw_url = image_upload&.url
|
|
UrlHelper.cook_url(raw_url, secure: image_upload&.secure?, local: true) if raw_url
|
|
end
|
|
|
|
def cannot_permanently_delete_reason(user)
|
|
if self.deleted_by_id == user&.id && self.deleted_at >= Post::PERMANENT_DELETE_TIMER.ago
|
|
time_left =
|
|
RateLimiter.time_left(
|
|
Post::PERMANENT_DELETE_TIMER.to_i - Time.zone.now.to_i + self.deleted_at.to_i,
|
|
)
|
|
I18n.t("post.cannot_permanently_delete.wait_or_different_admin", time_left: time_left)
|
|
end
|
|
end
|
|
|
|
def mentions
|
|
PrettyText.extract_mentions(Nokogiri::HTML5.fragment(cooked))
|
|
end
|
|
|
|
private
|
|
|
|
def parse_quote_into_arguments(quote)
|
|
return {} unless quote.present?
|
|
args = HashWithIndifferentAccess.new
|
|
quote.first.scan(/([a-z]+)\:(\d+)/).each { |arg| args[arg[0]] = arg[1].to_i }
|
|
args
|
|
end
|
|
|
|
def add_to_quoted_post_numbers(num)
|
|
return unless num.present?
|
|
self.quoted_post_numbers ||= []
|
|
self.quoted_post_numbers << num
|
|
end
|
|
|
|
def create_reply_relationship_with(post)
|
|
return if post.nil? || self.deleted_at.present?
|
|
post_reply = post.post_replies.new(reply_post_id: id)
|
|
if post_reply.save
|
|
if Topic.visible_post_types.include?(self.post_type)
|
|
Post.where(id: post.id).update_all ["reply_count = reply_count + 1"]
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
# == Schema Information
|
|
#
|
|
# Table name: posts
|
|
#
|
|
# id :integer not null, primary key
|
|
# user_id :integer
|
|
# topic_id :integer not null
|
|
# post_number :integer not null
|
|
# raw :text not null
|
|
# cooked :text not null
|
|
# created_at :datetime not null
|
|
# updated_at :datetime not null
|
|
# reply_to_post_number :integer
|
|
# reply_count :integer default(0), not null
|
|
# quote_count :integer default(0), not null
|
|
# deleted_at :datetime
|
|
# off_topic_count :integer default(0), not null
|
|
# like_count :integer default(0), not null
|
|
# incoming_link_count :integer default(0), not null
|
|
# bookmark_count :integer default(0), not null
|
|
# score :float
|
|
# reads :integer default(0), not null
|
|
# post_type :integer default(1), not null
|
|
# sort_order :integer
|
|
# last_editor_id :integer
|
|
# hidden :boolean default(FALSE), not null
|
|
# hidden_reason_id :integer
|
|
# notify_moderators_count :integer default(0), not null
|
|
# spam_count :integer default(0), not null
|
|
# illegal_count :integer default(0), not null
|
|
# inappropriate_count :integer default(0), not null
|
|
# last_version_at :datetime not null
|
|
# user_deleted :boolean default(FALSE), not null
|
|
# reply_to_user_id :integer
|
|
# percent_rank :float default(1.0)
|
|
# notify_user_count :integer default(0), not null
|
|
# like_score :integer default(0), not null
|
|
# deleted_by_id :integer
|
|
# edit_reason :string
|
|
# word_count :integer
|
|
# version :integer default(1), not null
|
|
# cook_method :integer default(1), not null
|
|
# wiki :boolean default(FALSE), not null
|
|
# baked_at :datetime
|
|
# baked_version :integer
|
|
# hidden_at :datetime
|
|
# self_edits :integer default(0), not null
|
|
# reply_quoted :boolean default(FALSE), not null
|
|
# via_email :boolean default(FALSE), not null
|
|
# raw_email :text
|
|
# public_version :integer default(1), not null
|
|
# action_code :string
|
|
# locked_by_id :integer
|
|
# image_upload_id :bigint
|
|
# outbound_message_id :string
|
|
#
|
|
# Indexes
|
|
#
|
|
# idx_posts_created_at_topic_id (created_at,topic_id) WHERE (deleted_at IS NULL)
|
|
# idx_posts_deleted_posts (topic_id,post_number) WHERE (deleted_at IS NOT NULL)
|
|
# idx_posts_user_id_deleted_at (user_id) WHERE (deleted_at IS NULL)
|
|
# index_for_rebake_old (id) WHERE (((baked_version IS NULL) OR (baked_version < 2)) AND (deleted_at IS NULL))
|
|
# index_posts_on_id_and_baked_version (id DESC,baked_version) WHERE (deleted_at IS NULL)
|
|
# index_posts_on_id_topic_id_where_not_deleted_or_empty (id,topic_id) WHERE ((deleted_at IS NULL) AND (raw <> ''::text))
|
|
# index_posts_on_image_upload_id (image_upload_id)
|
|
# index_posts_on_topic_id_and_created_at (topic_id,created_at)
|
|
# index_posts_on_topic_id_and_percent_rank (topic_id,percent_rank)
|
|
# index_posts_on_topic_id_and_post_number (topic_id,post_number) UNIQUE
|
|
# index_posts_on_topic_id_and_reply_to_post_number (topic_id,reply_to_post_number)
|
|
# index_posts_on_topic_id_and_sort_order (topic_id,sort_order)
|
|
# index_posts_on_user_id_and_created_at (user_id,created_at)
|
|
# index_posts_user_and_likes (user_id,like_count DESC,created_at DESC) WHERE (post_number > 1)
|
|
#
|