mirror of
https://github.com/discourse/discourse.git
synced 2024-12-17 01:33:42 +08:00
199 lines
4.6 KiB
Ruby
199 lines
4.6 KiB
Ruby
require 'nokogiri'
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require 'optparse'
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require File.expand_path(File.dirname(__FILE__) + "/base")
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class ImportScripts::Disqus < ImportScripts::Base
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def initialize(options)
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verify_file(options[:file])
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@post_as_user = get_post_as_user(options[:post_as])
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@dry_run = options[:dry_run]
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@parser = DisqusSAX.new(options[:strip])
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doc = Nokogiri::XML::SAX::Parser.new(@parser)
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doc.parse_file(options[:file])
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@parser.normalize
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super()
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end
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def execute
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@parser.threads.each do |id, t|
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puts "Creating #{t[:title]}... (#{t[:posts].size} posts)"
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if !@dry_run
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post = TopicEmbed.import_remote(@post_as_user, t[:link], title: t[:title])
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if post.present?
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t[:posts].each do |p|
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post_user = @post_as_user
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if p[:author_email]
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post_user = create_user({ id: nil, email: p[:author_email] }, nil)
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end
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attrs = {
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user_id: post_user.id,
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topic_id: post.topic_id,
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raw: p[:cooked],
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cooked: p[:cooked],
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created_at: Date.parse(p[:created_at])
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}
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if p[:parent_id]
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parent = @parser.posts[p[:parent_id]]
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if parent && parent[:discourse_number]
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attrs[:reply_to_post_number] = parent[:discourse_number]
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end
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end
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post = create_post(attrs, p[:id])
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p[:discourse_number] = post.post_number
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end
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TopicFeaturedUsers.new(post.topic).choose
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end
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end
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end
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end
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private
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def verify_file(file)
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abort("File '#{file}' not found") if !File.exist?(file)
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end
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def get_post_as_user(username)
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user = User.find_by_username_lower(username.downcase)
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abort("No user found named: '#{username}'") if user.nil?
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user
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end
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end
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class DisqusSAX < Nokogiri::XML::SAX::Document
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attr_accessor :posts, :threads
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def initialize(strip)
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@inside = {}
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@posts = {}
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@threads = {}
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@strip = strip
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end
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def start_element(name, attrs = [])
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case name
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when 'post'
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@post = {}
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@post[:id] = Hash[attrs]['dsq:id'] if @post
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when 'thread'
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id = Hash[attrs]['dsq:id']
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if @post
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thread = @threads[id]
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thread[:posts] << @post
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else
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@thread = {id: id, posts: []}
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end
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when 'parent'
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if @post
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id = Hash[attrs]['dsq:id']
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@post[:parent_id] = id
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end
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end
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@inside[name] = true
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end
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def end_element(name)
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case name
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when 'post'
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@posts[@post[:id]] = @post
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@post = nil
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when 'thread'
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if @post.nil?
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@threads[@thread[:id]] = @thread
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@thread = nil
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end
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end
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@inside[name] = false
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end
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def characters(str)
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record(@post, :author_email, str, 'author', 'email')
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record(@post, :author_name, str, 'author', 'name')
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record(@post, :author_anonymous, str, 'author', 'isAnonymous')
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record(@post, :created_at, str, 'createdAt')
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record(@thread, :link, str, 'link')
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record(@thread, :title, str, 'title')
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record(@thread, :created_at, str, 'createdAt')
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end
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def cdata_block(str)
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record(@post, :cooked, str, 'message')
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end
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def record(target, sym, str, *params)
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return if target.nil?
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if inside?(*params)
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target[sym] ||= ""
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target[sym] << str
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end
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end
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def inside?(*params)
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return !params.find{|p| !@inside[p]}
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end
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def normalize
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@threads.each do |id, t|
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if t[:posts].size == 0
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# Remove any threads that have no posts
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@threads.delete(id)
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else
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# Normalize titles
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t[:title].gsub!(@strip, '') if @strip.present?
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t[:title].strip!
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end
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end
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# Merge any threads that have the same title
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existing_title = {}
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@threads.each do |id, t|
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existing = existing_title[t[:title]]
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if existing.nil?
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existing_title[t[:title]] = t
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else
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existing[:posts] << t[:posts]
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existing[:posts].flatten!
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@threads.delete(t[:id])
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end
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end
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end
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end
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options = {
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dry_run: false
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}
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OptionParser.new do |opts|
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opts.banner = 'Usage: RAILS_ENV=production ruby disqus.rb [OPTIONS]'
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opts.on('-f', '--file=FILE_PATH', 'The disqus XML file to import') do |value|
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options[:file] = value
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end
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opts.on('-d', '--dry_run', 'Just output what will be imported rather than doing it') do
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options[:dry_run] = true
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end
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opts.on('-p', '--post_as=USERNAME', 'The Discourse username to post as') do |value|
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options[:post_as] = value
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end
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opts.on('-s', '--strip=TEXT', 'Text to strip from titles') do |value|
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options[:strip] = value
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end
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end.parse!
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ImportScripts::Disqus.new(options).perform
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