397 lines
13 KiB
Ruby
Executable File
397 lines
13 KiB
Ruby
Executable File
# frozen_string_literal: true
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require "mysql2"
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require File.expand_path(File.dirname(__FILE__) + "/base.rb")
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# Call it like this:
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# RAILS_ENV=production bundle exec ruby script/import_scripts/xenforo.rb
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class ImportScripts::XenForo < ImportScripts::Base
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XENFORO_DB = "xenforo_db"
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TABLE_PREFIX = "xf_"
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BATCH_SIZE = 1000
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ATTACHMENT_DIR = '/tmp/attachments'
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def initialize
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super
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@client = Mysql2::Client.new(
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host: "localhost",
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username: "root",
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password: "pa$$word",
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database: XENFORO_DB
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)
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@category_mappings = {}
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@prefix_as_category = false
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end
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def execute
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import_users
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import_categories
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import_posts
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end
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def import_users
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puts '', "creating users"
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total_count = mysql_query("SELECT count(*) count FROM #{TABLE_PREFIX}user WHERE user_state = 'valid' AND is_banned = 0;").first['count']
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batches(BATCH_SIZE) do |offset|
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results = mysql_query(
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"SELECT user_id id, username, email, custom_title title, register_date created_at,
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last_activity last_visit_time, user_group_id, is_moderator, is_admin, is_staff
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FROM #{TABLE_PREFIX}user
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WHERE user_state = 'valid' AND is_banned = 0
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LIMIT #{BATCH_SIZE}
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OFFSET #{offset};")
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break if results.size < 1
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next if all_records_exist? :users, results.map { |u| u["id"].to_i }
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create_users(results, total: total_count, offset: offset) do |user|
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next if user['username'].blank?
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{ id: user['id'],
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email: user['email'],
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username: user['username'],
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title: user['title'],
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created_at: Time.zone.at(user['created_at']),
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last_seen_at: Time.zone.at(user['last_visit_time']),
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moderator: user['is_moderator'] == 1 || user['is_staff'] == 1,
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admin: user['is_admin'] == 1 }
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end
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end
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end
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def import_categories
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puts "", "importing categories..."
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categories = mysql_query("
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SELECT node_id id,
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title,
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description,
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parent_node_id,
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display_order
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FROM #{TABLE_PREFIX}node
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ORDER BY parent_node_id, display_order
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").to_a
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top_level_categories = categories.select { |c| c["parent_node_id"] == 0 }
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create_categories(top_level_categories) do |c|
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{
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id: c['id'],
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name: c['title'],
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description: c['description'],
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position: c['display_order']
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}
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end
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top_level_category_ids = Set.new(top_level_categories.map { |c| c["id"] })
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subcategories = categories.select { |c| top_level_category_ids.include?(c["parent_node_id"]) }
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create_categories(subcategories) do |c|
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{
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id: c['id'],
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name: c['title'],
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description: c['description'],
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position: c['display_order'],
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parent_category_id: category_id_from_imported_category_id(c['parent_node_id'])
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}
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end
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subcategory_ids = Set.new(subcategories.map { |c| c['id'] })
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# deeper categories need to be tags
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categories.each do |c|
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next if c['parent_node_id'] == 0
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next if top_level_category_ids.include?(c['id'])
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next if subcategory_ids.include?(c['id'])
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# Find a subcategory for topics in this category
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parent = c
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while !parent.nil? && !subcategory_ids.include?(parent['id'])
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parent = categories.find { |subcat| subcat['id'] == parent['parent_node_id'] }
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end
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if parent
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tag_name = DiscourseTagging.clean_tag(c['title'])
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@category_mappings[c['id']] = {
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category_id: category_id_from_imported_category_id(parent['id']),
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tag: Tag.find_by_name(tag_name) || Tag.create(name: tag_name)
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}
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else
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puts '', "Couldn't find a category for #{c['id']} '#{c['title']}'!"
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end
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end
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end
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# This method is an alternative to import_categories.
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# It uses prefixes instead of nodes.
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def import_categories_from_thread_prefixes
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puts "", "importing categories..."
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categories = mysql_query("
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SELECT prefix_id id
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FROM #{TABLE_PREFIX}thread_prefix
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ORDER BY prefix_id ASC
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").to_a
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create_categories(categories) do |category|
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{
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id: category["id"],
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name: "Category-#{category["id"]}"
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}
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end
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@prefix_as_category = true
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end
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def import_posts
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puts "", "creating topics and posts"
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total_count = mysql_query("SELECT count(*) count from #{TABLE_PREFIX}post").first["count"]
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posts_sql = "
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SELECT p.post_id id,
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t.thread_id topic_id,
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#{@prefix_as_category ? 't.prefix_id' : 't.node_id'} category_id,
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t.title title,
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t.first_post_id first_post_id,
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p.user_id user_id,
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p.message raw,
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p.post_date created_at
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FROM #{TABLE_PREFIX}post p,
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#{TABLE_PREFIX}thread t
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WHERE p.thread_id = t.thread_id
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AND p.message_state = 'visible'
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AND t.discussion_state = 'visible'
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ORDER BY p.post_date
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LIMIT #{BATCH_SIZE}" # needs OFFSET
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batches(BATCH_SIZE) do |offset|
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results = mysql_query("#{posts_sql} OFFSET #{offset};").to_a
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break if results.size < 1
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next if all_records_exist? :posts, results.map { |p| p['id'] }
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create_posts(results, total: total_count, offset: offset) do |m|
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skip = false
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mapped = {}
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mapped[:id] = m['id']
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mapped[:user_id] = user_id_from_imported_user_id(m['user_id']) || -1
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mapped[:raw] = process_xenforo_post(m['raw'], m['id'])
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mapped[:created_at] = Time.zone.at(m['created_at'])
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if m['id'] == m['first_post_id']
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if m['category_id'].to_i == 0 || m['category_id'].nil?
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mapped[:category] = SiteSetting.uncategorized_category_id
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else
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mapped[:category] = category_id_from_imported_category_id(m['category_id'].to_i) ||
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@category_mappings[m['category_id']].try(:[], :category_id)
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end
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mapped[:title] = CGI.unescapeHTML(m['title'])
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else
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parent = topic_lookup_from_imported_post_id(m['first_post_id'])
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if parent
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mapped[:topic_id] = parent[:topic_id]
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else
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puts "Parent post #{m['first_post_id']} doesn't exist. Skipping #{m["id"]}: #{m["title"][0..40]}"
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skip = true
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end
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end
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skip ? nil : mapped
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end
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end
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# Apply tags
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batches(BATCH_SIZE) do |offset|
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results = mysql_query("#{posts_sql} OFFSET #{offset};").to_a
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break if results.size < 1
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results.each do |m|
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next unless m['id'] == m['first_post_id'] && m['category_id'].to_i > 0
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next unless tag = @category_mappings[m['category_id']].try(:[], :tag)
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next unless topic_mapping = topic_lookup_from_imported_post_id(m['id'])
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topic = Topic.find_by_id(topic_mapping[:topic_id])
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topic.tags = [tag] if topic
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end
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end
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end
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def process_xenforo_post(raw, import_id)
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s = raw.dup
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# :) is encoded as <!-- s:) --><img src="{SMILIES_PATH}/icon_e_smile.gif" alt=":)" title="Smile" /><!-- s:) -->
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s.gsub!(/<!-- s(\S+) --><img (?:[^>]+) \/><!-- s(?:\S+) -->/, '\1')
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# Some links look like this: <!-- m --><a class="postlink" href="http://www.onegameamonth.com">http://www.onegameamonth.com</a><!-- m -->
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s.gsub!(/<!-- \w --><a(?:.+)href="(\S+)"(?:.*)>(.+)<\/a><!-- \w -->/, '[\2](\1)')
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# Many phpbb bbcode tags have a hash attached to them. Examples:
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# [url=https://google.com:1qh1i7ky]click here[/url:1qh1i7ky]
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# [quote="cybereality":b0wtlzex]Some text.[/quote:b0wtlzex]
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s.gsub!(/:(?:\w{8})\]/, ']')
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# Remove mybb video tags.
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s.gsub!(/(^\[video=.*?\])|(\[\/video\]$)/, '')
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s = CGI.unescapeHTML(s)
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# phpBB shortens link text like this, which breaks our markdown processing:
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# [http://answers.yahoo.com/question/index ... 223AAkkPli](http://answers.yahoo.com/question/index?qid=20070920134223AAkkPli)
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#
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#Fix for the error: xenforo.rb: 160: in `gsub!': invalid byte sequence in UTF-8 (ArgumentError)
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if ! s.valid_encoding?
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s = s.encode("UTF-16be", invalid: :replace, replace: "?").encode('UTF-8')
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end
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# Work around it for now:
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s.gsub!(/\[http(s)?:\/\/(www\.)?/, '[')
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# [QUOTE]...[/QUOTE]
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s.gsub!(/\[quote\](.+?)\[\/quote\]/im) { "\n> #{$1}\n" }
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# Nested Quotes
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s.gsub!(/(\[\/?QUOTE.*?\])/mi) { |q| "\n#{q}\n" }
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# [QUOTE="username, post: 28662, member: 1283"]
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s.gsub!(/\[quote="(\w+), post: (\d*), member: (\d*)"\]/i) do
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username, imported_post_id, _imported_user_id = $1, $2, $3
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topic_mapping = topic_lookup_from_imported_post_id(imported_post_id)
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if topic_mapping
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"\n[quote=\"#{username}, post:#{topic_mapping[:post_number]}, topic:#{topic_mapping[:topic_id]}\"]\n"
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else
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"\n[quote=\"#{username}\"]\n"
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end
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end
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# [URL=...]...[/URL]
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s.gsub!(/\[url="?(.+?)"?\](.+)\[\/url\]/i) { "[#{$2}](#{$1})" }
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# [IMG]...[/IMG]
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s.gsub!(/\[\/?img\]/i, "")
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# convert list tags to ul and list=1 tags to ol
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# (basically, we're only missing list=a here...)
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s.gsub!(/\[list\](.*?)\[\/list:u\]/m, '[ul]\1[/ul]')
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s.gsub!(/\[list=1\](.*?)\[\/list:o\]/m, '[ol]\1[/ol]')
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# convert *-tags to li-tags so bbcode-to-md can do its magic on phpBB's lists:
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s.gsub!(/\[\*\](.*?)\[\/\*:m\]/, '[li]\1[/li]')
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# [YOUTUBE]<id>[/YOUTUBE]
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s.gsub!(/\[youtube\](.+?)\[\/youtube\]/i) { "\nhttps://www.youtube.com/watch?v=#{$1}\n" }
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# [youtube=425,350]id[/youtube]
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s.gsub!(/\[youtube="?(.+?)"?\](.+)\[\/youtube\]/i) { "\nhttps://www.youtube.com/watch?v=#{$2}\n" }
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# [MEDIA=youtube]id[/MEDIA]
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s.gsub!(/\[MEDIA=youtube\](.+?)\[\/MEDIA\]/i) { "\nhttps://www.youtube.com/watch?v=#{$1}\n" }
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# [ame="youtube_link"]title[/ame]
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s.gsub!(/\[ame="?(.+?)"?\](.+)\[\/ame\]/i) { "\n#{$1}\n" }
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# [VIDEO=youtube;<id>]...[/VIDEO]
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s.gsub!(/\[video=youtube;([^\]]+)\].*?\[\/video\]/i) { "\nhttps://www.youtube.com/watch?v=#{$1}\n" }
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# [USER=706]@username[/USER]
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s.gsub!(/\[user="?(.+?)"?\](.+)\[\/user\]/i) { $2 }
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# Remove the color tag
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s.gsub!(/\[color=[#a-z0-9]+\]/i, "")
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s.gsub!(/\[\/color\]/i, "")
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if Dir.exist? ATTACHMENT_DIR
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s = process_xf_attachments(:gallery, s)
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s = process_xf_attachments(:attachment, s)
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end
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s
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end
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def process_xf_attachments(xf_type, s)
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ids = Set.new
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ids.merge(s.scan(get_xf_regexp(xf_type)).map { |x| x[0].to_i })
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ids.each do |id|
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next unless id
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sql = get_xf_sql(xf_type, id).squish!
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results = mysql_query(sql)
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if results.size < 1
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# Strip attachment
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s.gsub!(get_xf_regexp(xf_type, id), '')
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STDERR.puts "#{xf_type.capitalize} id #{id} not found in source database. Stripping."
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next
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end
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original_filename = results.first['filename']
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result = results.first
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upload = import_xf_attachment(result['data_id'], result['file_hash'], result['user_id'], original_filename)
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next unless upload
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if upload.present? && upload.persisted?
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s.gsub!(get_xf_regexp(xf_type, id), @uploader.html_for_upload(upload, original_filename))
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else
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STDERR.puts "Could not find upload: #{upload.id}. Skipping attachment id #{id}"
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end
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end
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s
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end
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def import_xf_attachment(data_id, file_hash, owner_id, original_filename)
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current_filename = "#{data_id}-#{file_hash}.data"
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path = Pathname.new(ATTACHMENT_DIR + "/#{data_id / 1000}/#{current_filename}")
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new_path = path.dirname + original_filename
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upload = nil
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if File.exist? path
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FileUtils.cp path, new_path
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upload = @uploader.create_upload owner_id, new_path, original_filename
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FileUtils.rm new_path
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else
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STDERR.puts "Could not find file #{path}. Skipping attachment id #{data_id}"
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end
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upload
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end
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def get_xf_regexp(type, id = nil)
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case type
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when :gallery
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Regexp.new(/\[GALLERY=media,\s#{id ? id : '(\d+)'}\].+?\]/i)
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when :attachment
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Regexp.new(/\[ATTACH(?>=\w+)?\]#{id ? id : '(\d+)'}\[\/ATTACH\]/i)
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end
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end
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def get_xf_sql(type, id)
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case type
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when :gallery
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<<-SQL
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SELECT m.media_id, m.media_title, a.attachment_id, a.data_id, d.filename, d.file_hash,d.user_id
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FROM xengallery_media as m
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INNER JOIN #{TABLE_PREFIX}attachment a on m.attachment_id = a.attachment_id
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INNER JOIN #{TABLE_PREFIX}attachment_data d on a.data_id = d.data_id
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WHERE media_id = #{id}
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SQL
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when :attachment
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<<-SQL
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SELECT a.attachment_id, a.data_id, d.filename, d.file_hash, d.user_id
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FROM #{TABLE_PREFIX}attachment AS a
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INNER JOIN #{TABLE_PREFIX}attachment_data d ON a.data_id = d.data_id
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WHERE attachment_id = #{id}
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SQL
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end
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end
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def mysql_query(sql)
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@client.query(sql, cache_rows: false)
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end
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end
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ImportScripts::XenForo.new.perform
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