discourse/app/models/post.rb
Martin Brennan 8ebd5edd1e
DEV: Rename secure_media to secure_uploads (#18376)
This commit renames all secure_media related settings to secure_uploads_* along with the associated functionality.

This is being done because "media" does not really cover it, we aren't just doing this for images and videos etc. but for all uploads in the site.

Additionally, in future we want to secure more types of uploads, and enable a kind of "mixed mode" where some uploads are secure and some are not, so keeping media in the name is just confusing.

This also keeps compatibility with the `secure-media-uploads` path, and changes new
secure URLs to be `secure-uploads`.

Deprecated settings:

* secure_media -> secure_uploads
* secure_media_allow_embed_images_in_emails -> secure_uploads_allow_embed_images_in_emails
* secure_media_max_email_embed_image_size_kb -> secure_uploads_max_email_embed_image_size_kb
2022-09-29 09:24:33 +10:00

1229 lines
37 KiB
Ruby

# frozen_string_literal: true
require 'archetype'
require 'digest/sha1'
class Post < ActiveRecord::Base
include RateLimiter::OnCreateRecord
include Trashable
include Searchable
include HasCustomFields
include LimitedEdit
self.ignored_columns = [
"avg_time", # TODO(2021-01-04): remove
"image_url" # TODO(2021-06-01): remove
]
cattr_accessor :plugin_permitted_create_params, :plugin_permitted_update_params
self.plugin_permitted_create_params = {}
self.plugin_permitted_update_params = {}
# increase this number to force a system wide post rebake
# Recreate `index_for_rebake_old` when the number is increased
# Version 1, was the initial version
# Version 2 15-12-2017, introduces CommonMark and a huge number of onebox fixes
BAKED_VERSION = 2
# Time between the delete and permanent delete of a post
PERMANENT_DELETE_TIMER = 5.minutes
rate_limit
rate_limit :limit_posts_per_day
belongs_to :user
belongs_to :topic
belongs_to :reply_to_user, class_name: "User"
has_many :post_replies
has_many :replies, through: :post_replies
has_many :post_actions, dependent: :destroy
has_many :topic_links
has_many :group_mentions, dependent: :destroy
has_many :upload_references, as: :target, dependent: :destroy
has_many :uploads, through: :upload_references
has_one :post_stat
has_many :bookmarks, as: :bookmarkable
has_one :incoming_email
has_many :post_details
has_many :post_revisions
has_many :revisions, -> { order(:number) }, foreign_key: :post_id, class_name: 'PostRevision'
has_many :user_actions, foreign_key: :target_post_id
belongs_to :image_upload, class_name: "Upload"
has_many :post_hotlinked_media, dependent: :destroy, class_name: "PostHotlinkedMedia"
validates_with PostValidator, unless: :skip_validation
after_commit :index_search
# We can pass several creating options to a post via attributes
attr_accessor :image_sizes, :quoted_post_numbers, :no_bump, :invalidate_oneboxes, :cooking_options, :skip_unique_check, :skip_validation
MISSING_UPLOADS ||= "missing uploads"
MISSING_UPLOADS_IGNORED ||= "missing uploads ignored"
NOTICE ||= "notice"
SHORT_POST_CHARS ||= 1200
register_custom_field_type(MISSING_UPLOADS, :json)
register_custom_field_type(MISSING_UPLOADS_IGNORED, :boolean)
register_custom_field_type(NOTICE, :json)
scope :private_posts_for_user, ->(user) do
where(
"topics.id IN (#{Topic::PRIVATE_MESSAGES_SQL_USER})
OR topics.id IN (#{Topic::PRIVATE_MESSAGES_SQL_GROUP})",
user_id: user.id
)
end
scope :by_newest, -> { order('created_at DESC, id DESC') }
scope :by_post_number, -> { order('post_number ASC') }
scope :with_user, -> { includes(:user) }
scope :created_since, -> (time_ago) { where('posts.created_at > ?', time_ago) }
scope :public_posts, -> { joins(:topic).where('topics.archetype <> ?', Archetype.private_message) }
scope :private_posts, -> { joins(:topic).where('topics.archetype = ?', Archetype.private_message) }
scope :with_topic_subtype, ->(subtype) { joins(:topic).where('topics.subtype = ?', subtype) }
scope :visible, -> { joins(:topic).where('topics.visible = true').where(hidden: false) }
scope :secured, -> (guardian) { where('posts.post_type IN (?)', Topic.visible_post_types(guardian&.user)) }
scope :for_mailing_list, ->(user, since) {
q = created_since(since)
.joins("INNER JOIN (#{Topic.for_digest(user, Time.at(0)).select(:id).to_sql}) AS digest_topics ON digest_topics.id = posts.topic_id") # we want all topics with new content, regardless when they were created
.order('posts.created_at ASC')
q = q.where.not(post_type: Post.types[:whisper]) unless user.staff?
q
}
scope :raw_match, -> (pattern, type = 'string') {
type = type&.downcase
case type
when 'string'
where('raw ILIKE ?', "%#{pattern}%")
when 'regex'
where('raw ~* ?', "(?n)#{pattern}")
end
}
scope :have_uploads, -> {
where("
(
posts.cooked LIKE '%<a %' OR
posts.cooked LIKE '%<img %' OR
posts.cooked LIKE '%<video %'
) AND (
posts.cooked LIKE ? OR
posts.cooked LIKE '%/original/%' OR
posts.cooked LIKE '%/optimized/%' OR
posts.cooked LIKE '%data-orig-src=%' OR
posts.cooked LIKE '%/uploads/short-url/%'
)", "%/uploads/#{RailsMultisite::ConnectionManagement.current_db}/%"
)
}
delegate :username, to: :user
def self.hidden_reasons
@hidden_reasons ||= Enum.new(flag_threshold_reached: 1,
flag_threshold_reached_again: 2,
new_user_spam_threshold_reached: 3,
flagged_by_tl3_user: 4,
email_spam_header_found: 5,
flagged_by_tl4_user: 6,
email_authentication_result_header: 7,
imported_as_unlisted: 8)
end
def self.types
@types ||= Enum.new(regular: 1,
moderator_action: 2,
small_action: 3,
whisper: 4)
end
def self.cook_methods
@cook_methods ||= Enum.new(regular: 1,
raw_html: 2,
email: 3)
end
def self.notices
@notices ||= Enum.new(custom: "custom",
new_user: "new_user",
returning_user: "returning_user")
end
def self.find_by_detail(key, value)
includes(:post_details).find_by(post_details: { key: key, value: value })
end
def self.find_by_number(topic_id, post_number)
find_by(topic_id: topic_id, post_number: post_number)
end
def whisper?
post_type == Post.types[:whisper]
end
def add_detail(key, value, extra = nil)
post_details.build(key: key, value: value, extra: extra)
end
def limit_posts_per_day
if user && user.new_user_posting_on_first_day? && post_number && post_number > 1
RateLimiter.new(user, "first-day-replies-per-day", SiteSetting.max_replies_in_first_day, 1.day.to_i)
end
end
def readers_count
read_count = reads - 1 # Excludes poster
read_count < 0 ? 0 : read_count
end
def publish_change_to_clients!(type, opts = {})
# special failsafe for posts missing topics consistency checks should fix,
# but message is safe to skip
return unless topic
skip_topic_stats = opts.delete(:skip_topic_stats)
message = {
id: id,
post_number: post_number,
updated_at: Time.now,
user_id: user_id,
last_editor_id: last_editor_id,
type: type,
version: version
}.merge(opts)
publish_message!("/topic/#{topic_id}", message)
Topic.publish_stats_to_clients!(topic.id, type) unless skip_topic_stats
end
def publish_message!(channel, message, opts = {})
return unless topic
if Topic.visible_post_types.include?(post_type)
opts.merge!(topic.secure_audience_publish_messages)
else
opts[:user_ids] = User.human_users
.where("admin OR moderator OR id = ?", user_id)
.pluck(:id)
end
if opts[:user_ids] != [] && opts[:group_ids] != []
MessageBus.publish(channel, message, opts)
end
end
def trash!(trashed_by = nil)
self.topic_links.each(&:destroy)
self.save_custom_fields if self.custom_fields.delete(Post::NOTICE)
super(trashed_by)
end
def recover!
super
recover_public_post_actions
TopicLink.extract_from(self)
QuotedPost.extract_from(self)
if topic && topic.category_id && topic.category
topic.category.update_latest
end
end
# The key we use in redis to ensure unique posts
def unique_post_key
"unique#{topic&.private_message? ? "-pm" : ""}-post-#{user_id}:#{raw_hash}"
end
def store_unique_post_key
if SiteSetting.unique_posts_mins > 0
Discourse.redis.setex(unique_post_key, SiteSetting.unique_posts_mins.minutes.to_i, id)
end
end
def matches_recent_post?
post_id = Discourse.redis.get(unique_post_key)
post_id != (nil) && post_id.to_i != (id)
end
def raw_hash
return if raw.blank?
Digest::SHA1.hexdigest(raw)
end
def self.allowed_image_classes
@allowed_image_classes ||= ['avatar', 'favicon', 'thumbnail', 'emoji', 'ytp-thumbnail-image']
end
def post_analyzer
@post_analyzers ||= {}
@post_analyzers[raw_hash] ||= PostAnalyzer.new(raw, topic_id)
end
%w{raw_mentions
linked_hosts
embedded_media_count
attachment_count
link_count
raw_links
has_oneboxes?}.each do |attr|
define_method(attr) do
post_analyzer.public_send(attr)
end
end
def add_nofollow?
return false if user&.staff?
user.blank? || SiteSetting.tl3_links_no_follow? || !user.has_trust_level?(TrustLevel[3])
end
def omit_nofollow?
!add_nofollow?
end
def cook(raw, opts = {})
# For some posts, for example those imported via RSS, we support raw HTML. In that
# case we can skip the rendering pipeline.
return raw if cook_method == Post.cook_methods[:raw_html]
options = opts.dup
options[:cook_method] = cook_method
post_user = self.user
options[:user_id] = post_user.id if post_user
options[:omit_nofollow] = true if omit_nofollow?
if self.with_secure_uploads?
each_upload_url do |url|
uri = URI.parse(url)
if FileHelper.is_supported_media?(File.basename(uri.path))
raw = raw.sub(
url, Rails.application.routes.url_for(
controller: "uploads", action: "show_secure", path: uri.path[1..-1], host: Discourse.current_hostname
)
)
end
end
end
cooked = post_analyzer.cook(raw, options)
new_cooked = Plugin::Filter.apply(:after_post_cook, self, cooked)
if post_type == Post.types[:regular]
if new_cooked != cooked && new_cooked.blank?
Rails.logger.debug("Plugin is blanking out post: #{self.url}\nraw: #{raw}")
elsif new_cooked.blank?
Rails.logger.debug("Blank post detected post: #{self.url}\nraw: #{raw}")
end
end
new_cooked
end
# Sometimes the post is being edited by someone else, for example, a mod.
# If that's the case, they should not be bound by the original poster's
# restrictions, for example on not posting images.
def acting_user
@acting_user || user
end
def acting_user=(pu)
@acting_user = pu
end
def last_editor
self.last_editor_id ? (User.find_by_id(self.last_editor_id) || user) : user
end
def allowed_spam_hosts
hosts = SiteSetting
.allowed_spam_host_domains
.split('|')
.map { |h| h.strip }
.reject { |h| !h.include?('.') }
hosts << GlobalSetting.hostname
hosts << RailsMultisite::ConnectionManagement.current_hostname
end
def total_hosts_usage
hosts = linked_hosts.clone
allowlisted = allowed_spam_hosts
hosts.reject! do |h|
allowlisted.any? do |w|
h.end_with?(w)
end
end
return hosts if hosts.length == 0
TopicLink.where(domain: hosts.keys, user_id: acting_user.id)
.group(:domain, :post_id)
.count
.each_key do |tuple|
domain = tuple[0]
hosts[domain] = (hosts[domain] || 0) + 1
end
hosts
end
# Prevent new users from posting the same hosts too many times.
def has_host_spam?
return false if acting_user.present? && (acting_user.staged? || acting_user.mature_staged? || acting_user.has_trust_level?(TrustLevel[1]))
return false if topic&.private_message?
total_hosts_usage.values.any? { |count| count >= SiteSetting.newuser_spam_host_threshold }
end
def archetype
topic&.archetype
end
def self.regular_order
order(:sort_order, :post_number)
end
def self.reverse_order
order('sort_order desc, post_number desc')
end
def self.summary(topic_id)
topic_id = topic_id.to_i
# percent rank has tons of ties
where(topic_id: topic_id)
.where([
"id = ANY(
(
SELECT posts.id
FROM posts
WHERE posts.topic_id = #{topic_id.to_i}
AND posts.post_number = 1
) UNION
(
SELECT p1.id
FROM posts p1
WHERE p1.percent_rank <= ?
AND p1.topic_id = #{topic_id.to_i}
ORDER BY p1.percent_rank
LIMIT ?
)
)",
SiteSetting.summary_percent_filter.to_f / 100.0,
SiteSetting.summary_max_results
])
end
def delete_post_notices
self.custom_fields.delete(Post::NOTICE)
self.save_custom_fields
end
def recover_public_post_actions
PostAction.publics
.with_deleted
.where(post_id: self.id, id: self.custom_fields["deleted_public_actions"])
.find_each do |post_action|
post_action.recover!
post_action.save!
end
self.custom_fields.delete("deleted_public_actions")
self.save_custom_fields
end
def filter_quotes(parent_post = nil)
return cooked if parent_post.blank?
# We only filter quotes when there is exactly 1
return cooked unless (quote_count == 1)
parent_raw = parent_post.raw.sub(/\[quote.+\/quote\]/m, '')
if raw[parent_raw] || (parent_raw.size < SHORT_POST_CHARS)
return cooked.sub(/\<aside.+\<\/aside\>/m, '')
end
cooked
end
def external_id
"#{topic_id}/#{post_number}"
end
def reply_to_post
return if reply_to_post_number.blank?
@reply_to_post ||= Post.find_by("topic_id = :topic_id AND post_number = :post_number", topic_id: topic_id, post_number: reply_to_post_number)
end
def reply_notification_target
return if reply_to_post_number.blank?
Post.find_by("topic_id = :topic_id AND post_number = :post_number AND user_id <> :user_id", topic_id: topic_id, post_number: reply_to_post_number, user_id: user_id).try(:user)
end
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?
post_actions.where(post_action_type_id: PostActionType.flag_types_without_custom.values, deleted_at: nil).count != 0
end
def reviewable_flag
ReviewableFlaggedPost.pending.find_by(target: self)
end
def with_secure_uploads?
return false if !SiteSetting.secure_uploads?
SiteSetting.login_required? || \
(topic.present? && (topic.private_message? || topic.category&.read_restricted))
end
def hide!(post_action_type_id, reason = nil, custom_message: nil)
return if hidden?
reason ||= hidden_at ?
Post.hidden_reasons[:flag_threshold_reached_again] :
Post.hidden_reasons[:flag_threshold_reached]
hiding_again = hidden_at.present?
self.hidden = true
self.hidden_at = Time.zone.now
self.hidden_reason_id = reason
self.skip_unique_check = true
Post.transaction do
save!
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
if message.nil?
message = hiding_again ? :post_hidden_again : :post_hidden
end
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 = ""
if topic_view.page > 1
page = "?page=#{topic_view.page}"
end
"#{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 do |t|
urls[t.post_id.to_i] = url(t.slug, t.id, t.post_number)
end
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
)
if is_first_post?
topic&.update_excerpt(excerpt_for_topic)
end
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
)
if post_number == topic.highest_post_number
topic.update_columns(last_post_user_id: new_user.id)
end
end
before_create do
PostCreator.before_create_tasks(self)
end
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)
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 = ?', category_id)
end
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)
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?
Jobs.enqueue(:update_post_uploads_secure_status, post_id: self.id, source: source)
end
end
def downloaded_images
self.custom_fields[Post::DOWNLOADED_IMAGES] || {}
end
def each_upload_url(fragments: nil, include_local_upload: true)
current_db = RailsMultisite::ConnectionManagement.current_db
upload_patterns = [
/\/uploads\/#{current_db}\//,
/\/original\//,
/\/optimized\//,
/\/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?("//")
next unless Discourse.store.has_been_uploaded?(src) || Upload.secure_uploads_url?(src) || (include_local_upload && src =~ /\A\/[^\/]/i)
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).pluck_first(: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
private
def parse_quote_into_arguments(quote)
return {} unless quote.present?
args = HashWithIndifferentAccess.new
quote.first.scan(/([a-z]+)\:(\d+)/).each do |arg|
args[arg[0]] = arg[1].to_i
end
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_image_upload_id (image_upload_id)
# index_posts_on_reply_to_post_number (reply_to_post_number)
# 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)
#