mirror of
https://github.com/discourse/discourse.git
synced 2024-11-23 06:29:30 +08:00
669 lines
21 KiB
Ruby
669 lines
21 KiB
Ruby
require 'mysql2'
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require File.expand_path(File.dirname(__FILE__) + '/base.rb')
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require 'htmlentities'
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require 'tsort'
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require 'set'
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require 'optparse'
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require 'etc'
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require 'open3'
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class ImportScripts::Smf2 < ImportScripts::Base
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def self.run
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options = Options.new
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begin
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options.parse!
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rescue Options::SettingsError => err
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$stderr.puts "Cannot load SMF settings: #{err.message}"
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exit 1
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rescue Options::Error => err
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$stderr.puts err.to_s.capitalize
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$stderr.puts options.usage
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exit 1
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end
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new(options).perform
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end
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attr_reader :options
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def initialize(options)
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if options.timezone.nil?
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$stderr.puts "No source timezone given and autodetection from PHP failed."
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$stderr.puts "Use -t option to specify correct source timezone:"
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$stderr.puts options.usage
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exit 1
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end
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super()
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@options = options
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begin
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Time.zone = options.timezone
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rescue ArgumentError
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$stderr.puts "Timezone name '#{options.timezone}' is invalid."
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exit 1
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end
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if options.database.blank?
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$stderr.puts "No database name given."
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$stderr.puts options.usage
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exit 1
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end
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if options.password == :ask
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require 'highline'
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$stderr.print "Enter password for MySQL database `#{options.database}`: "
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options.password = HighLine.new.ask('') {|q| q.echo = false }
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end
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@default_db_connection = create_db_connection
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end
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def execute
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import_groups
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import_users
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import_categories
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import_posts
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postprocess_posts
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end
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def import_groups
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puts '', 'creating groups'
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total = query(<<-SQL, as: :single)
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SELECT COUNT(*) FROM {prefix}membergroups
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WHERE min_posts = -1 AND group_type IN (1, 2)
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SQL
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create_groups(query(<<-SQL), total: total) {|group| group }
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SELECT id_group AS id, group_name AS name
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FROM {prefix}membergroups
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WHERE min_posts = -1 AND group_type IN (1, 2)
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SQL
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end
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GUEST_GROUP = -1
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MEMBER_GROUP = 0
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ADMIN_GROUP = 1
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MODERATORS_GROUP = 2
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def import_users
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puts '', 'creating users'
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total = query("SELECT COUNT(*) FROM {prefix}members", as: :single)
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create_users(query(<<-SQL), total: total) do |member|
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SELECT a.id_member, a.member_name, a.date_registered, a.real_name, a.email_address,
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a.is_activated, a.last_login, a.birthdate, a.member_ip, a.id_group, a.additional_groups,
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b.id_attach, b.file_hash, b.filename
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FROM {prefix}members AS a
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LEFT JOIN {prefix}attachments AS b ON a.id_member = b.id_member
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SQL
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group_ids = [ member[:id_group], *member[:additional_groups].split(',').map(&:to_i) ]
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create_time = Time.zone.at(member[:date_registered]) rescue Time.now
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last_seen_time = Time.zone.at(member[:last_login]) rescue nil
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ip_addr = IPAddr.new(member[:member_ip]) rescue nil
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{
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id: member[:id_member],
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username: member[:member_name],
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created_at: create_time,
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name: member[:real_name],
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email: member[:email_address],
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active: member[:is_activated] == 1,
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approved: member[:is_activated] == 1,
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last_seen_at: last_seen_time,
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date_of_birth: member[:birthdate],
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ip_address: ip_addr,
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admin: group_ids.include?(ADMIN_GROUP),
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moderator: group_ids.include?(MODERATORS_GROUP),
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post_create_action: proc do |user|
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user.update(created_at: create_time) if create_time < user.created_at
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GroupUser.transaction do
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group_ids.each do |gid|
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group_id = group_id_from_imported_group_id(gid) and
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GroupUser.find_or_create_by(user: user, group_id: group_id)
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end
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end
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if options.smfroot and member[:id_attach].present? and user.uploaded_avatar_id.blank?
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path = find_smf_attachment_path(member[:id_attach], member[:file_hash], member[:filename]) and begin
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upload = create_upload(user.id, path, member[:filename])
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if upload.persisted?
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user.update(uploaded_avatar_id: upload.id)
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end
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rescue SystemCallError => err
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puts "Could not import avatar: #{err.message}"
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end
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end
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end
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}
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end
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end
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def import_categories
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create_categories(query(<<-SQL)) do |board|
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SELECT id_board, id_parent, name, description, member_groups
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FROM {prefix}boards
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ORDER BY id_parent ASC, id_board ASC
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SQL
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parent_id = category_id_from_imported_category_id(board[:id_parent]) if board[:id_parent] > 0
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groups = (board[:member_groups] || "").split(/,/).map(&:to_i)
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restricted = !groups.include?(GUEST_GROUP) && !groups.include?(MEMBER_GROUP)
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{
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id: board[:id_board],
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name: board[:name],
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description: board[:description],
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parent_category_id: parent_id,
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post_create_action: restricted && proc do |category|
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category.update(read_restricted: true)
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groups.each do |imported_group_id|
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group_id = group_id_from_imported_group_id(imported_group_id) and
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CategoryGroup.find_or_create_by(category: category, group_id: group_id) do |cg|
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cg.permission_type = CategoryGroup.permission_types[:full]
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end
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end
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end,
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}
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end
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end
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def import_posts
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puts '', 'creating posts'
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spinner = %w(/ - \\ |).cycle
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total = query("SELECT COUNT(*) FROM {prefix}messages", as: :single)
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PostCreator.class_eval do
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def guardian
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@guardian ||= if opts[:import_mode]
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@@system_guardian ||= Guardian.new(Discourse.system_user)
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else
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Guardian.new(@user)
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end
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end
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end
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topics = Enumerator.new do |y|
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last_topic_id = nil
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topic_messages = nil
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query("SELECT id_msg, id_topic, body FROM {prefix}messages ORDER BY id_topic ASC, id_msg ASC") do |message|
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if last_topic_id != message[:id_topic]
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y << topic_messages
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last_topic_id = message[:id_topic]
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topic_messages = [ message ]
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else
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topic_messages << message
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end
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end
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y << topic_messages
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end
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graph = MessageDependencyGraph.new
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topics.each do |messages|
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next unless messages.present?
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(messages.reverse << nil).each_cons(2) do |message, prev|
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graph.add_message(message[:id_msg], prev ? prev[:id_msg] : nil,
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extract_quoted_message_ids(message[:body]).to_a)
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end
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print "\r#{spinner.next}"
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end
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begin
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cycles = graph.cycles
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print "\r#{spinner.next}"
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cycles.each do |cycle|
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candidate = cycle.detect {|n| ((cycle - [n]) & n.quoted).present? }
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candidate.ignore_quotes = true
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end
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end while cycles.present?
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message_order = graph.tsort
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print "\r#{spinner.next}"
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query(<<-SQL, as: :array)
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CREATE TEMPORARY TABLE {prefix}import_message_order (
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message_id int(11) NOT NULL,
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message_order int(11) NOT NULL AUTO_INCREMENT,
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ignore_quotes tinyint(1) NOT NULL,
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PRIMARY KEY (message_id),
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UNIQUE KEY message_order (message_order)
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) ENGINE=MEMORY
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SQL
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message_order.each_slice(100) do |nodes|
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query(<<-SQL, as: :array)
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INSERT INTO {prefix}import_message_order (message_id, ignore_quotes)
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VALUES #{ nodes.map {|n| "(#{n.id}, #{n.ignore_quotes? ? 1 : 0})" }.join(',') }
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SQL
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print "\r#{spinner.next}"
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end
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db2 = create_db_connection
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create_posts(query(<<-SQL), total: total) do |message|
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SELECT m.id_msg, m.id_topic, m.id_member, m.poster_time, m.body, o.ignore_quotes,
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m.subject, t.id_board, t.id_first_msg, COUNT(a.id_attach) AS attachment_count
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FROM {prefix}messages AS m
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LEFT JOIN {prefix}import_message_order AS o ON o.message_id = m.id_msg
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LEFT JOIN {prefix}topics AS t ON t.id_topic = m.id_topic
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LEFT JOIN {prefix}attachments AS a ON a.id_msg = m.id_msg AND a.attachment_type = 0
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GROUP BY m.id_msg
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ORDER BY o.message_order ASC
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SQL
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skip = false
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ignore_quotes = (message[:ignore_quotes] == 1)
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post = {
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id: message[:id_msg],
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user_id: user_id_from_imported_user_id(message[:id_member]) || -1,
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created_at: Time.zone.at(message[:poster_time]),
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post_create_action: ignore_quotes && proc do |post|
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post.custom_fields['import_rebake'] = 't'
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post.save
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end
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}
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if message[:id_msg] == message[:id_first_msg]
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post[:category] = category_id_from_imported_category_id(message[:id_board])
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post[:title] = decode_entities(message[:subject])
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else
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parent = topic_lookup_from_imported_post_id(message[:id_first_msg])
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if parent
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post[:topic_id] = parent[:topic_id]
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else
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puts "Parent post #{message[:id_first_msg]} doesn't exist. Skipping #{message[:id_msg]}: #{message[:subject][0..40]}"
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skip = true
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end
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end
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next nil if skip
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attachments = message[:attachment_count] == 0 ? [] : query(<<-SQL, connection: db2, as: :array)
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SELECT id_attach, file_hash, filename FROM {prefix}attachments
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WHERE attachment_type = 0 AND id_msg = #{message[:id_msg]}
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ORDER BY id_attach ASC
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SQL
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attachments.map! {|a| import_attachment(post, a) rescue (puts $! ; nil) }
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post[:raw] = convert_message_body(message[:body], attachments, ignore_quotes: ignore_quotes)
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next post
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end
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end
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def import_attachment(post, attachment)
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path = find_smf_attachment_path(attachment[:id_attach], attachment[:file_hash], attachment[:filename])
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raise "Attachment for post #{post[:id]} failed: #{attachment[:filename]}" unless path.present?
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upload = create_upload(post[:user_id], path, attachment[:filename])
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raise "Attachment for post #{post[:id]} failed: #{upload.errors.full_messages.join(', ')}" unless upload.persisted?
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return upload
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rescue SystemCallError => err
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raise "Attachment for post #{post[:id]} failed: #{err.message}"
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end
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def postprocess_posts
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puts '', 'rebaking posts'
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tags = PostCustomField.where(name: 'import_rebake', value: 't')
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tags_total = tags.count
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tags_done = 0
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tags.each do |tag|
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post = tag.post
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Post.transaction do
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post.raw = convert_quotes(post.raw)
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post.rebake!
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post.save
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tag.destroy!
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end
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print_status(tags_done += 1, tags_total)
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end
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end
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private
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def create_db_connection
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Mysql2::Client.new(host: options.host, username: options.username,
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password: options.password, database: options.database)
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end
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def query(sql, **opts, &block)
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db = opts[:connection] || @default_db_connection
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return __query(db, sql).to_a if opts[:as] == :array
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return __query(db, sql, as: :array).first[0] if opts[:as] == :single
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return __query(db, sql, stream: true).each(&block) if block_given?
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return __query(db, sql, stream: true)
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end
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def __query(db, sql, **opts)
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db.query(sql.gsub('{prefix}', options.prefix),
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{symbolize_keys: true, cache_rows: false}.merge(opts))
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end
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TRTR_TABLE = begin
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from = "ŠŽšžŸÀÁÂÃÄÅÇÈÉÊËÌÍÎÏÑÒÓÔÕÖØÙÚÛÜÝàáâãäåçèéêëìíîïñòóôõöøùúûüýÿ"
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to = "SZszYAAAAAACEEEEIIIINOOOOOOUUUUYaaaaaaceeeeiiiinoooooouuuuyy"
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from.chars.zip(to.chars)
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end
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def find_smf_attachment_path(attachment_id, file_hash, filename)
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cleaned_name = filename.dup
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TRTR_TABLE.each {|from,to| cleaned_name.gsub!(from, to) }
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cleaned_name.gsub!(/\s/, '_')
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cleaned_name.gsub!(/[^\w_\.\-]/, '')
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legacy_name = "#{attachment_id}_#{cleaned_name.gsub('.', '_')}#{Digest::MD5.hexdigest(cleaned_name)}"
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[ filename, "#{attachment_id}_#{file_hash}", legacy_name ]
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.map {|name| File.join(options.smfroot, 'attachments', name) }
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.detect {|file| File.exists?(file) }
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end
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def decode_entities(*args)
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(@html_entities ||= HTMLEntities.new).decode(*args)
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end
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def convert_message_body(body, attachments = [], **opts)
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body = decode_entities(body.gsub(/<br\s*\/>/, "\n"))
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body.gsub!(ColorPattern, '\k<inner>')
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body.gsub!(ListPattern) do |s|
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params = parse_tag_params($~[:params])
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tag = params['type'] == 'decimal' ? 'ol' : 'ul'
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"\n[#{tag}]#{$~[:inner].strip}[/#{tag}]\n"
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end
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body.gsub!(XListPattern) do |s|
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r = "\n[ul]"
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s.lines.each {|l| r << '[li]' << l.strip.sub(/^\[x\]\s*/, '') << '[/li]' }
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r << "[/ul]\n"
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end
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if attachments.present?
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use_count = Hash.new(0)
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AttachmentPatterns.each do |p|
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pattern, emitter = *p
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body.gsub!(pattern) do |s|
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next s unless (num = $~[:num].to_i - 1) >= 0
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next s unless (upload = attachments[num]).present?
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use_count[num] += 1
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instance_exec(upload, &emitter)
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end
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end
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if use_count.keys.length < attachments.select(&:present?).length
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body << "\n\n---"
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attachments.each_with_index do |upload, num|
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if upload.present? and use_count[num] == 0
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body << ( "\n\n" + get_upload_markdown(upload) )
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end
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end
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end
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end
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return opts[:ignore_quotes] ? body : convert_quotes(body)
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end
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def v8
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@ctx ||= begin
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ctx = PrettyText.create_new_context
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PrettyText.decorate_context(ctx)
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# provides toHumanSize but restores I18n.t which we need to fix again
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ctx.load(Rails.root + "app/assets/javascripts/locales/i18n.js")
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helper = PrettyText::Helpers.new
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ctx['I18n']['t'] = proc {|_,key,opts| helper.t(key, opts) }
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# from i18n_helpers.js -- can't load it directly because Ember is missing
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ctx.eval(<<-'end')
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var oldI18ntoHumanSize = I18n.toHumanSize;
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I18n.toHumanSize = function(number, options) {
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options = options || {};
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options.format = I18n.t("number.human.storage_units.format");
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return oldI18ntoHumanSize.apply(this, [number, options]);
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};
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end
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ctx
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end
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end
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def get_upload_markdown(upload)
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@func ||= v8.eval("Discourse.Utilities.getUploadMarkdown")
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return @func.call(upload).to_s
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end
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def convert_quotes(body)
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body.to_s.gsub(QuotePattern) do |s|
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inner = $~[:inner].strip
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params = parse_tag_params($~[:params])
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if params['author'].present?
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quote = "[quote=\"#{params['author']}"
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if QuoteParamsPattern =~ params['link']
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tl = topic_lookup_from_imported_post_id($~[:msg].to_i)
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quote << ", post:#{tl[:post_number]}, topic:#{tl[:topic_id]}" if tl
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end
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quote << "\"]#{inner}[/quote]"
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else
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"<blockquote>#{inner}</blockquote>"
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end
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end
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end
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def extract_quoted_message_ids(body)
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Set.new.tap do |quoted|
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body.scan(/\[quote\s+([^\]]+)\s*\]/) do |params|
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params = parse_tag_params(params)
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if params.has_key?("link")
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match = QuoteParamsPattern.match(params["link"])
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quoted << match[:msg].to_i if match
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end
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end
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end
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end
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# param1=value1=still1 value1 param2=value2 ...
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# => {'param1' => 'value1=still1 value1', 'param2' => 'value2 ...'}
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def parse_tag_params(params)
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params.to_s.strip.scan(/(?<param>\w+)=(?<value>(?:(?>\S+)|\s+(?!\w+=))*)/).
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inject({}) {|h,e| h[e[0]] = e[1]; h }
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end
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class << self
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private
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# [tag param=value param2=value2]
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# text
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# [tag nested=true]text[/tag]
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# [/tag]
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# => match[:params] == 'param=value param2=value2'
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# match[:inner] == "\n text\n [tag nested=true]text[/tag]\n"
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def build_nested_tag_regex(ltag, rtag = nil)
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rtag ||= '/'+ltag
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%r{
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\[#{ltag}(?-x:[ =](?<params>[^\]]*))?\] # consume open tag, followed by...
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(?<inner>(?:
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(?> [^\[]+ ) # non-tags, or...
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\[(?! #{ltag}(?-x:[ =][^\]]*)?\] | #{rtag}\]) # different tags, or ...
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|
|
(?<re> # recursively matched tags of the same kind
|
|
\[#{ltag}(?-x:[ =][^\]]*)?\]
|
|
(?:
|
|
(?> [^\[]+ )
|
|
|
|
|
\[(?! #{ltag}(?-x:[ =][^\]]*)?\] | #{rtag}\])
|
|
|
|
|
\g<re> # recursion here
|
|
)*
|
|
\[#{rtag}\]
|
|
)
|
|
)*)
|
|
\[#{rtag}\]
|
|
}x
|
|
end
|
|
end
|
|
|
|
QuoteParamsPattern = /^topic=(?<topic>\d+).msg(?<msg>\d+)#msg\k<msg>$/
|
|
XListPattern = /(?<xblock>(?>^\[x\]\s*(?<line>.*)$\n?)+)/
|
|
QuotePattern = build_nested_tag_regex('quote')
|
|
ColorPattern = build_nested_tag_regex('color')
|
|
ListPattern = build_nested_tag_regex('list')
|
|
AttachmentPatterns = [
|
|
[/^\[attach(?:|img|url|mini)=(?<num>\d+)\]$/, ->(u) { "\n"+get_upload_markdown(u)+"\n" }],
|
|
[/\[attach(?:|img|url|mini)=(?<num>\d+)\]/, ->(u) { get_upload_markdown(u) }]
|
|
]
|
|
|
|
|
|
# Provides command line options and parses the SMF settings file.
|
|
class Options
|
|
|
|
class Error < StandardError ; end
|
|
class SettingsError < Error ; end
|
|
|
|
def parse!(args = ARGV)
|
|
raise Error, 'not enough arguments' if ARGV.empty?
|
|
begin
|
|
parser.parse!(args)
|
|
rescue OptionParser::ParseError => err
|
|
raise Error, err.message
|
|
end
|
|
raise Error, 'too many arguments' if args.length > 1
|
|
self.smfroot = args.first
|
|
read_smf_settings if self.smfroot
|
|
|
|
self.host ||= 'localhost'
|
|
self.username ||= Etc.getlogin
|
|
self.prefix ||= 'smf_'
|
|
self.timezone ||= get_php_timezone
|
|
end
|
|
|
|
def usage
|
|
parser.to_s
|
|
end
|
|
|
|
attr_accessor :host
|
|
attr_accessor :username
|
|
attr_accessor :password
|
|
attr_accessor :database
|
|
attr_accessor :prefix
|
|
attr_accessor :smfroot
|
|
attr_accessor :timezone
|
|
|
|
private
|
|
|
|
def get_php_timezone
|
|
phpinfo, status = Open3.capture2('phpnope', '-i')
|
|
phpinfo.lines.each do |line|
|
|
key, *vals = line.split(' => ').map(&:strip)
|
|
break vals[0] if key == 'Default timezone'
|
|
end
|
|
rescue Errno::ENOENT
|
|
$stderr.puts "Error: PHP CLI executable not found"
|
|
end
|
|
|
|
def read_smf_settings
|
|
settings = File.join(self.smfroot, 'Settings.php')
|
|
IO.readlines(settings).each do |line|
|
|
next unless m = /\$([a-z_]+)\s*=\s*['"](.+?)['"]\s*;\s*((#|\/\/).*)?$/.match(line)
|
|
case m[1]
|
|
when 'db_server' then self.host ||= m[2]
|
|
when 'db_user' then self.username ||= m[2]
|
|
when 'db_passwd' then self.password ||= m[2]
|
|
when 'db_name' then self.database ||= m[2]
|
|
when 'db_prefix' then self.prefix ||= m[2]
|
|
end
|
|
end
|
|
rescue => err
|
|
raise SettingsError, err.message unless self.database
|
|
end
|
|
|
|
def parser
|
|
@parser ||= OptionParser.new(nil, 12) do |o|
|
|
o.banner = "Usage:\t#{File.basename($0)} <SMFROOT> [options]\n"
|
|
o.banner << "\t#{File.basename($0)} -d <DATABASE> [options]"
|
|
o.on('-h HOST', :REQUIRED, "MySQL server hostname [\"#{self.host}\"]") {|s| self.host = s }
|
|
o.on('-u USER', :REQUIRED, "MySQL username [\"#{self.username}\"]") {|s| self.username = s }
|
|
o.on('-p [PASS]', :OPTIONAL, 'MySQL password. Without argument, reads password from STDIN.') {|s| self.password = s || :ask }
|
|
o.on('-d DBNAME', :REQUIRED, 'Name of SMF database') {|s| self.database = s }
|
|
o.on('-f PREFIX', :REQUIRED, "Table names prefix [\"#{self.prefix}\"]") {|s| self.prefix = s }
|
|
o.on('-t TIMEZONE', :REQUIRED, 'Timezone used by SMF2 [auto-detected from PHP]') {|s| self.timezone = s }
|
|
end
|
|
end
|
|
|
|
end #Options
|
|
|
|
|
|
# Framework around TSort, used to build a dependency graph over messages
|
|
# to find and solve cyclic quotations.
|
|
class MessageDependencyGraph
|
|
include TSort
|
|
|
|
def initialize
|
|
@nodes = {}
|
|
end
|
|
|
|
def [](key)
|
|
@nodes[key]
|
|
end
|
|
|
|
def add_message(id, prev = nil, quoted = [])
|
|
@nodes[id] = Node.new(self, id, prev, quoted)
|
|
end
|
|
|
|
def tsort_each_node(&block)
|
|
@nodes.each_value(&block)
|
|
end
|
|
|
|
def tsort_each_child(node, &block)
|
|
node.dependencies.each(&block)
|
|
end
|
|
|
|
def cycles
|
|
strongly_connected_components.select {|c| c.length > 1 }.to_a
|
|
end
|
|
|
|
|
|
class Node
|
|
attr_reader :id
|
|
|
|
def initialize(graph, id, prev = nil, quoted = [])
|
|
@graph = graph
|
|
@id = id
|
|
@prev = prev
|
|
@quoted = quoted
|
|
end
|
|
|
|
def prev
|
|
@graph[@prev]
|
|
end
|
|
|
|
def quoted
|
|
@quoted.map {|id| @graph[id] }.reject(&:nil?)
|
|
end
|
|
|
|
def ignore_quotes?
|
|
!!@ignore_quotes
|
|
end
|
|
|
|
def ignore_quotes=(value)
|
|
@ignore_quotes = !!value
|
|
@dependencies = nil
|
|
end
|
|
|
|
def dependencies
|
|
@dependencies ||= Set.new.tap do |deps|
|
|
deps.merge(quoted) unless ignore_quotes?
|
|
deps << prev if prev.present?
|
|
end.to_a
|
|
end
|
|
|
|
def hash
|
|
@id.hash
|
|
end
|
|
|
|
def eql?(other)
|
|
@id.eql?(other)
|
|
end
|
|
|
|
def inspect
|
|
"#<#{self.class.name}: id=#{id.inspect}, prev=#{safe_id(@prev)}, quoted=[#{@quoted.map(&method(:safe_id)).join(', ')}]>"
|
|
end
|
|
|
|
private
|
|
|
|
def safe_id(id)
|
|
@graph[id].present? ? @graph[id].id.inspect : "(#{id})"
|
|
end
|
|
end #Node
|
|
|
|
end #MessageDependencyGraph
|
|
|
|
end
|
|
|
|
ImportScripts::Smf2.run
|