mirror of
https://github.com/discourse/discourse.git
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542f77181a
When a user creates or edits a post, we already were updating the security of uploads in the post based on site settings and their access control post, which is important since these uploads may be switched from secure/not secure based on configuration. The `with_secure_uploads?` method on a post is used to determine whether to use the secure-uploads URL for all uploads in the post, regardless of their individual security, so if this is false and some of the posts are still secure when rebaking, we end up with broken URLs. This commit just makes it so rebaking via the UI also re-evaluates upload security so that when the post is loaded again after processing, all of the uploads have the correct security.
1352 lines
40 KiB
Ruby
1352 lines
40 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) {
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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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}
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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) {
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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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}
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scope :raw_match,
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->(pattern, type = "string") {
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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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}
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scope :have_uploads,
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-> {
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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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}
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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.with_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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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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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 = {})
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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
|
|
|
|
def with_secure_uploads?
|
|
return false if !SiteSetting.secure_uploads?
|
|
|
|
# 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&.private_message? if SiteSetting.secure_uploads_pm_only?
|
|
|
|
SiteSetting.login_required? || topic&.private_message? || topic&.category&.read_restricted?
|
|
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
|
|
"#{Discourse.base_url}#{url}"
|
|
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]
|
|
|
|
"#{result}#{topic_id}/#{post_number}"
|
|
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,
|
|
update_upload_security: false
|
|
)
|
|
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)
|
|
|
|
# Settings may have changed before rebake, so any uploads linked to the post
|
|
# should have their secure status reexamined.
|
|
update_uploads_secure_status(source: "post rebake") if update_upload_security
|
|
|
|
# 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: 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? && self.is_first_post? && !self.topic.image_upload_id
|
|
upload_ids << thumbnail.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
|
|
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
|
|
|
|
if SiteSetting.secure_uploads?
|
|
Upload
|
|
.where(id: upload_ids, access_control_post_id: nil)
|
|
.where("id NOT IN (SELECT upload_id FROM custom_emojis)")
|
|
.update_all(access_control_post_id: self.id)
|
|
end
|
|
end
|
|
end
|
|
|
|
def update_uploads_secure_status(source:)
|
|
if Discourse.store.external? && SiteSetting.secure_uploads?
|
|
Jobs.enqueue(:update_post_uploads_secure_status, post_id: self.id, 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")
|
|
|
|
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_reply_to_post_number (reply_to_post_number)
|
|
# 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_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)
|
|
#
|