573 lines
21 KiB
Ruby
573 lines
21 KiB
Ruby
# frozen_string_literal: true
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module ::DiscourseDataExplorer
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class ValidationError < StandardError
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end
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module DataExplorer
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# Run a data explorer query on the currently connected database.
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#
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# @param [Query] query the Query object to run
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# @param [Hash] params the colon-style query parameters for the query
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# @param [Hash] opts hash of options
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# explain - include a query plan in the result
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# @return [Hash]
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# error - any exception that was raised in the execution. Check this
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# first before looking at any other fields.
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# pg_result - the PG::Result object
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# duration_nanos - the query duration, in nanoseconds
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# explain - the query
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def self.run_query(query, req_params = {}, opts = {})
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# Safety checks
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# see test 'doesn't allow you to modify the database #2'
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if query.sql =~ /;/
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err = ValidationError.new(I18n.t("js.errors.explorer.no_semicolons"))
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return { error: err, duration_nanos: 0 }
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end
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query_args = {}
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begin
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query_args = query.cast_params req_params
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rescue ValidationError => e
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return { error: e, duration_nanos: 0 }
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end
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time_start, time_end, explain, err, result = nil
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begin
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ActiveRecord::Base.connection.transaction do
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# Setting transaction to read only prevents shoot-in-foot actions like SELECT FOR UPDATE
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# see test 'doesn't allow you to modify the database #1'
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DB.exec "SET TRANSACTION READ ONLY"
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# Set a statement timeout so we can't tie up the server
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DB.exec "SET LOCAL statement_timeout = 10000"
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# SQL comments are for the benefits of the slow queries log
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sql = <<-SQL
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/*
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* DiscourseDataExplorer Query
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* Query: /admin/plugins/explorer?id=#{query.id}
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* Started by: #{opts[:current_user]}
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*/
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WITH query AS (
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#{query.sql}
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) SELECT * FROM query
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LIMIT #{opts[:limit] || SiteSetting.data_explorer_query_result_limit}
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SQL
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time_start = Time.now
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# Using MiniSql::InlineParamEncoder directly instead of DB.param_encoder because current implementation of
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# DB.param_encoder is meant for SQL fragments and not an entire SQL string.
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sql =
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MiniSql::InlineParamEncoder.new(ActiveRecord::Base.connection.raw_connection).encode(
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sql,
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query_args,
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)
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result = ActiveRecord::Base.connection.raw_connection.async_exec(sql)
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result.check # make sure it's done
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time_end = Time.now
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if opts[:explain]
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explain =
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DB
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.query_hash("EXPLAIN #{query.sql}", query_args)
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.map { |row| row["QUERY PLAN"] }.join "\n"
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end
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# All done. Issue a rollback anyways, just in case
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# see test 'doesn't allow you to modify the database #1'
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raise ActiveRecord::Rollback
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end
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rescue Exception => ex
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err = ex
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time_end = Time.now
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end
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{
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error: err,
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pg_result: result,
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duration_secs: time_end - time_start,
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explain: explain,
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params_full: query_args,
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}
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end
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def self.extra_data_pluck_fields
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@extra_data_pluck_fields ||= {
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user: {
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class: User,
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fields: %i[id username uploaded_avatar_id],
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serializer: BasicUserSerializer,
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},
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badge: {
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class: Badge,
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fields: %i[id name badge_type_id description icon],
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include: [:badge_type],
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serializer: SmallBadgeSerializer,
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},
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post: {
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class: Post,
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fields: %i[id topic_id post_number cooked user_id],
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include: [:user],
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serializer: SmallPostWithExcerptSerializer,
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},
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topic: {
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class: Topic,
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fields: %i[id title slug posts_count],
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serializer: BasicTopicSerializer,
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},
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group: {
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class: Group,
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ignore: true,
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},
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category: {
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class: Category,
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ignore: true,
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},
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reltime: {
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ignore: true,
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},
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html: {
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ignore: true,
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},
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}
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end
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def self.column_regexes
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@column_regexes ||=
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extra_data_pluck_fields
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.map { |key, val| /(#{val[:class].to_s.downcase})_id$/ if val[:class] }
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.compact
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end
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def self.add_extra_data(pg_result)
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needed_classes = {}
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ret = {}
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col_map = {}
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pg_result.fields.each_with_index do |col, idx|
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rgx = column_regexes.find { |r| r.match col }
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if rgx
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cls = (rgx.match col)[1].to_sym
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needed_classes[cls] ||= []
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needed_classes[cls] << idx
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elsif col =~ /^(\w+)\$/
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cls = $1.to_sym
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needed_classes[cls] ||= []
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needed_classes[cls] << idx
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elsif col =~ /^\w+_url$/
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col_map[idx] = "url"
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end
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end
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needed_classes.each do |cls, column_nums|
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next unless column_nums.present?
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support_info = extra_data_pluck_fields[cls]
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next unless support_info
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column_nums.each { |col_n| col_map[col_n] = cls }
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if support_info[:ignore]
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ret[cls] = []
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next
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end
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ids = Set.new
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column_nums.each { |col_n| ids.merge(pg_result.column_values(col_n)) }
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ids.delete nil
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ids.map! &:to_i
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object_class = support_info[:class]
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all_objs = object_class
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all_objs = all_objs.with_deleted if all_objs.respond_to? :with_deleted
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all_objs =
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all_objs
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.select(support_info[:fields])
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.where(id: ids.to_a.sort)
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.includes(support_info[:include])
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.order(:id)
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ret[cls] = ActiveModel::ArraySerializer.new(
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all_objs,
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each_serializer: support_info[:serializer],
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)
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end
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[ret, col_map]
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end
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def self.sensitive_column_names
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%w[
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#_IP_Addresses
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topic_views.ip_address
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users.ip_address
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users.registration_ip_address
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incoming_links.ip_address
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topic_link_clicks.ip_address
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user_histories.ip_address
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#_Emails
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email_tokens.email
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users.email
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invites.email
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user_histories.email
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email_logs.to_address
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posts.raw_email
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badge_posts.raw_email
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#_Secret_Tokens
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email_tokens.token
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email_logs.reply_key
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api_keys.key
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site_settings.value
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users.auth_token
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users.password_hash
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users.salt
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#_Authentication_Info
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user_open_ids.email
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oauth2_user_infos.uid
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oauth2_user_infos.email
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facebook_user_infos.facebook_user_id
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facebook_user_infos.email
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twitter_user_infos.twitter_user_id
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github_user_infos.github_user_id
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single_sign_on_records.external_email
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single_sign_on_records.external_id
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google_user_infos.google_user_id
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google_user_infos.email
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]
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end
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def self.schema
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# No need to expire this, because the server processes get restarted on upgrade
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# refer user to http://www.postgresql.org/docs/9.3/static/datatype.html
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@schema ||=
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begin
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results = DB.query_hash <<~SQL
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select
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c.column_name column_name,
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c.data_type data_type,
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c.character_maximum_length character_maximum_length,
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c.is_nullable is_nullable,
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c.column_default column_default,
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c.table_name table_name,
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pgd.description column_desc
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from INFORMATION_SCHEMA.COLUMNS c
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inner join pg_catalog.pg_statio_all_tables st on (c.table_schema = st.schemaname and c.table_name = st.relname)
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left outer join pg_catalog.pg_description pgd on (pgd.objoid = st.relid and pgd.objsubid = c.ordinal_position)
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where c.table_schema = 'public'
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ORDER BY c.table_name, c.ordinal_position
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SQL
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by_table = {}
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# Massage the results into a nicer form
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results.each do |hash|
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full_col_name = "#{hash["table_name"]}.#{hash["column_name"]}"
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if hash["is_nullable"] == "YES"
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hash["is_nullable"] = true
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else
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hash.delete("is_nullable")
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end
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clen = hash.delete "character_maximum_length"
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dt = hash["data_type"]
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if hash["column_name"] == "id"
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hash["data_type"] = "serial"
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hash["primary"] = true
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elsif dt == "character varying"
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hash["data_type"] = "varchar(#{clen.to_i})"
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elsif dt == "timestamp without time zone"
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hash["data_type"] = "timestamp"
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elsif dt == "double precision"
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hash["data_type"] = "double"
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end
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default = hash["column_default"]
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if default.nil? || default =~ /^nextval\(/
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hash.delete "column_default"
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elsif default =~ /^'(.*)'::(character varying|text)/
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hash["column_default"] = $1
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end
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hash.delete("column_desc") unless hash["column_desc"]
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hash["sensitive"] = true if sensitive_column_names.include? full_col_name
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hash["enum"] = enum_info[full_col_name] if enum_info.include? full_col_name
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if denormalized_columns.include? full_col_name
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hash["denormal"] = denormalized_columns[full_col_name]
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end
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fkey = fkey_info(hash["table_name"], hash["column_name"])
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hash["fkey_info"] = fkey if fkey
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table_name = hash.delete("table_name")
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by_table[table_name] ||= []
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by_table[table_name] << hash
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end
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# this works for now, but no big loss if the tables aren't quite sorted
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favored_order = %w[
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posts
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topics
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users
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categories
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badges
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groups
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notifications
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post_actions
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site_settings
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]
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sorted_by_table = {}
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favored_order.each { |tbl| sorted_by_table[tbl] = by_table[tbl] }
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by_table.keys.sort.each do |tbl|
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next if favored_order.include? tbl
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sorted_by_table[tbl] = by_table[tbl]
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end
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sorted_by_table
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end
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end
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def self.enums
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return @enums if @enums
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@enums = {
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"application_requests.req_type": ApplicationRequest.req_types,
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"badges.badge_type_id": Enum.new(:gold, :silver, :bronze, start: 1),
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"bookmarks.auto_delete_preference": Bookmark.auto_delete_preferences,
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"category_groups.permission_type": CategoryGroup.permission_types,
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"category_users.notification_level": CategoryUser.notification_levels,
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"directory_items.period_type": DirectoryItem.period_types,
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"email_change_requests.change_state": EmailChangeRequest.states,
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"groups.id": Group::AUTO_GROUPS,
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"groups.mentionable_level": Group::ALIAS_LEVELS,
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"groups.messageable_level": Group::ALIAS_LEVELS,
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"groups.members_visibility_level": Group.visibility_levels,
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"groups.visibility_level": Group.visibility_levels,
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"groups.default_notification_level": GroupUser.notification_levels,
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"group_histories.action": GroupHistory.actions,
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"group_users.notification_level": GroupUser.notification_levels,
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"imap_sync_logs.level": ImapSyncLog.levels,
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"invites.emailed_status": Invite.emailed_status_types,
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"notifications.notification_type": Notification.types,
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"polls.results": Poll.results,
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"polls.status": Poll.statuses,
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"polls.type": Poll.types,
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"polls.visibility": Poll.visibilities,
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"post_action_types.id": PostActionType.types,
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"post_actions.post_action_type_id": PostActionType.types,
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"posts.cook_method": Post.cook_methods,
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"posts.hidden_reason_id": Post.hidden_reasons,
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"posts.post_type": Post.types,
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"reviewables.status": Reviewable.statuses,
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"reviewable_histories.reviewable_history_type": ReviewableHistory.types,
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"reviewable_scores.status": ReviewableScore.statuses,
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"screened_emails.action_type": ScreenedEmail.actions,
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"screened_ip_addresses.action_type": ScreenedIpAddress.actions,
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"screened_urls.action_type": ScreenedUrl.actions,
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"search_logs.search_result_type": SearchLog.search_result_types,
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"search_logs.search_type": SearchLog.search_types,
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"site_settings.data_type": SiteSetting.types,
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"skipped_email_logs.reason_type": SkippedEmailLog.reason_types,
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"tag_group_permissions.permission_type": TagGroupPermission.permission_types,
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"theme_fields.type_id": ThemeField.types,
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"theme_settings.data_type": ThemeSetting.types,
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"topic_timers.status_type": TopicTimer.types,
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"topic_users.notification_level": TopicUser.notification_levels,
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"topic_users.notifications_reason_id": TopicUser.notification_reasons,
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"uploads.verification_status": Upload.verification_statuses,
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"user_actions.action_type": UserAction.types,
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"user_histories.action": UserHistory.actions,
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"user_options.email_previous_replies": UserOption.previous_replies_type,
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"user_options.like_notification_frequency": UserOption.like_notification_frequency_type,
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"user_options.text_size_key": UserOption.text_sizes,
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"user_options.title_count_mode_key": UserOption.title_count_modes,
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"user_options.email_level": UserOption.email_level_types,
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"user_options.email_messages_level": UserOption.email_level_types,
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"user_second_factors.method": UserSecondFactor.methods,
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"user_security_keys.factor_type": UserSecurityKey.factor_types,
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"users.trust_level": TrustLevel.levels,
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"watched_words.action": WatchedWord.actions,
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"web_hooks.content_type": WebHook.content_types,
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"web_hooks.last_delivery_status": WebHook.last_delivery_statuses,
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}.with_indifferent_access
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# QueuedPost is removed in recent Discourse releases
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@enums["queued_posts.state"] = QueuedPost.states if defined?(QueuedPost)
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@enums
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end
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def self.enum_info
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@enum_info ||=
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begin
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enum_info = {}
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enums.map do |key, enum|
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# https://stackoverflow.com/questions/10874356/reverse-a-hash-in-ruby
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enum_info[key] = Hash[enum.to_a.map(&:reverse)]
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end
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enum_info
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end
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end
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def self.fkey_info(table, column)
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full_name = "#{table}.#{column}"
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if fkey_defaults[column]
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fkey_defaults[column]
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elsif column =~ /_by_id$/ || column =~ /_user_id$/
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:users
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elsif foreign_keys[full_name]
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foreign_keys[full_name]
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else
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nil
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end
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end
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def self.foreign_keys
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@fkey_columns ||= {
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"posts.last_editor_id": :users,
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"posts.version": :"post_revisions.number",
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"topics.featured_user1_id": :users,
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"topics.featured_user2_id": :users,
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"topics.featured_user3_id": :users,
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"topics.featured_user4_id": :users,
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"topics.featured_user5_id": :users,
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"users.seen_notification_id": :notifications,
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"users.uploaded_avatar_id": :uploads,
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"users.primary_group_id": :groups,
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"categories.latest_post_id": :posts,
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"categories.latest_topic_id": :topics,
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"categories.parent_category_id": :categories,
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"badges.badge_grouping_id": :badge_groupings,
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"post_actions.related_post_id": :posts,
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"color_scheme_colors.color_scheme_id": :color_schemes,
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"color_schemes.versioned_id": :color_schemes,
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"incoming_links.incoming_referer_id": :incoming_referers,
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"incoming_referers.incoming_domain_id": :incoming_domains,
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"post_replies.reply_id": :posts,
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"quoted_posts.quoted_post_id": :posts,
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"topic_link_clicks.topic_link_id": :topic_links,
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"topic_link_clicks.link_topic_id": :topics,
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"topic_link_clicks.link_post_id": :posts,
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"user_actions.target_topic_id": :topics,
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"user_actions.target_post_id": :posts,
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"user_avatars.custom_upload_id": :uploads,
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"user_avatars.gravatar_upload_id": :uploads,
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"user_badges.notification_id": :notifications,
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"user_profiles.card_image_badge_id": :badges,
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}.with_indifferent_access
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end
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def self.fkey_defaults
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@fkey_defaults ||= {
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user_id: :users,
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# :*_by_id => :users,
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# :*_user_id => :users,
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category_id: :categories,
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group_id: :groups,
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post_id: :posts,
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post_action_id: :post_actions,
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topic_id: :topics,
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upload_id: :uploads,
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}.with_indifferent_access
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end
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def self.denormalized_columns
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{
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"posts.reply_count": :post_replies,
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"posts.quote_count": :quoted_posts,
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"posts.incoming_link_count": :topic_links,
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"posts.word_count": :posts,
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"posts.avg_time": :post_timings,
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"posts.reads": :post_timings,
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"posts.like_score": :post_actions,
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"posts.like_count": :post_actions,
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"posts.bookmark_count": :post_actions,
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"posts.vote_count": :post_actions,
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"posts.off_topic_count": :post_actions,
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"posts.notify_moderators_count": :post_actions,
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"posts.spam_count": :post_actions,
|
|
"posts.illegal_count": :post_actions,
|
|
"posts.inappropriate_count": :post_actions,
|
|
"posts.notify_user_count": :post_actions,
|
|
"topics.views": :topic_views,
|
|
"topics.posts_count": :posts,
|
|
"topics.reply_count": :posts,
|
|
"topics.incoming_link_count": :topic_links,
|
|
"topics.moderator_posts_count": :posts,
|
|
"topics.participant_count": :posts,
|
|
"topics.word_count": :posts,
|
|
"topics.last_posted_at": :posts,
|
|
"topics.last_post_user_idt": :posts,
|
|
"topics.avg_time": :post_timings,
|
|
"topics.highest_post_number": :posts,
|
|
"topics.image_url": :posts,
|
|
"topics.excerpt": :posts,
|
|
"topics.like_count": :post_actions,
|
|
"topics.bookmark_count": :post_actions,
|
|
"topics.vote_count": :post_actions,
|
|
"topics.off_topic_count": :post_actions,
|
|
"topics.notify_moderators_count": :post_actions,
|
|
"topics.spam_count": :post_actions,
|
|
"topics.illegal_count": :post_actions,
|
|
"topics.inappropriate_count": :post_actions,
|
|
"topics.notify_user_count": :post_actions,
|
|
"categories.topic_count": :topics,
|
|
"categories.post_count": :posts,
|
|
"categories.latest_post_id": :posts,
|
|
"categories.latest_topic_id": :topics,
|
|
"categories.description": :posts,
|
|
"categories.read_restricted": :category_groups,
|
|
"categories.topics_year": :topics,
|
|
"categories.topics_month": :topics,
|
|
"categories.topics_week": :topics,
|
|
"categories.topics_day": :topics,
|
|
"categories.posts_year": :posts,
|
|
"categories.posts_month": :posts,
|
|
"categories.posts_week": :posts,
|
|
"categories.posts_day": :posts,
|
|
"badges.grant_count": :user_badges,
|
|
"groups.user_count": :group_users,
|
|
"directory_items.likes_received": :post_actions,
|
|
"directory_items.likes_given": :post_actions,
|
|
"directory_items.topics_entered": :user_stats,
|
|
"directory_items.days_visited": :user_stats,
|
|
"directory_items.posts_read": :user_stats,
|
|
"directory_items.topic_count": :topics,
|
|
"directory_items.post_count": :posts,
|
|
"post_search_data.search_data": :posts,
|
|
"top_topics.yearly_posts_count": :posts,
|
|
"top_topics.monthly_posts_count": :posts,
|
|
"top_topics.weekly_posts_count": :posts,
|
|
"top_topics.daily_posts_count": :posts,
|
|
"top_topics.yearly_views_count": :topic_views,
|
|
"top_topics.monthly_views_count": :topic_views,
|
|
"top_topics.weekly_views_count": :topic_views,
|
|
"top_topics.daily_views_count": :topic_views,
|
|
"top_topics.yearly_likes_count": :post_actions,
|
|
"top_topics.monthly_likes_count": :post_actions,
|
|
"top_topics.weekly_likes_count": :post_actions,
|
|
"top_topics.daily_likes_count": :post_actions,
|
|
"top_topics.yearly_op_likes_count": :post_actions,
|
|
"top_topics.monthly_op_likes_count": :post_actions,
|
|
"top_topics.weekly_op_likes_count": :post_actions,
|
|
"top_topics.daily_op_likes_count": :post_actions,
|
|
"top_topics.all_score": :posts,
|
|
"top_topics.yearly_score": :posts,
|
|
"top_topics.monthly_score": :posts,
|
|
"top_topics.weekly_score": :posts,
|
|
"top_topics.daily_score": :posts,
|
|
"topic_links.clicks": :topic_link_clicks,
|
|
"topic_search_data.search_data": :topics,
|
|
"topic_users.liked": :post_actions,
|
|
"topic_users.bookmarked": :post_actions,
|
|
"user_stats.posts_read_count": :post_timings,
|
|
"user_stats.topic_reply_count": :posts,
|
|
"user_stats.first_post_created_at": :posts,
|
|
"user_stats.post_count": :posts,
|
|
"user_stats.topic_count": :topics,
|
|
"user_stats.likes_given": :post_actions,
|
|
"user_stats.likes_received": :post_actions,
|
|
"user_search_data.search_data": :user_profiles,
|
|
"users.last_posted_at": :posts,
|
|
"users.previous_visit_at": :user_visits,
|
|
}.with_indifferent_access
|
|
end
|
|
end
|
|
end
|