require "mysql2" require File.expand_path(File.dirname(__FILE__) + "/base.rb") # Before running this script, paste these lines into your shell, # then use arrow keys to edit the values =begin export DB_HOST="localhost" export DB_NAME="mybb" export DB_PW="" export DB_USER="root" export TABLE_PREFIX="mybb_" export BASE="" # =end # Call it like this: # RAILS_ENV=production ruby script/import_scripts/mybb.rb class ImportScripts::MyBB < ImportScripts::Base DB_HOST ||= ENV['DB_HOST'] || "localhost" DB_NAME ||= ENV['DB_NAME'] || "mybb" DB_PW ||= ENV['DB_PW'] || "" DB_USER ||= ENV['DB_USER'] || "root" TABLE_PREFIX ||= ENV['TABLE_PREFIX'] || "mybb_" BATCH_SIZE = 1000 BASE = "" QUIET = true def initialize super @client = Mysql2::Client.new( host: DB_HOST, username: DB_USER, password: DB_PW, database: DB_NAME ) end def execute SiteSetting.disable_emails=true import_users import_categories import_posts import_private_messages create_permalinks suspend_users end def import_users puts '', "creating users" total_count = mysql_query("SELECT count(*) count FROM #{TABLE_PREFIX}users u JOIN #{TABLE_PREFIX}usergroups g ON g.gid = u.usergroup WHERE g.title != 'Banned';").first['count'] batches(BATCH_SIZE) do |offset| results = mysql_query( "SELECT uid id, email email, username, regdate, g.title `group` FROM #{TABLE_PREFIX}users u JOIN #{TABLE_PREFIX}usergroups g ON g.gid = u.usergroup WHERE g.title != 'Banned' ORDER BY u.uid ASC LIMIT #{BATCH_SIZE} OFFSET #{offset};") break if results.size < 1 next if all_records_exist? :users, results.map {|u| u["id"].to_i} create_users(results, total: total_count, offset: offset) do |user| { id: user['id'], email: user['email'], username: user['username'], created_at: Time.zone.at(user['regdate']), moderator: user['group'] == 'Super Moderators', admin: user['group'] == 'Administrators' } end end end def import_categories results = mysql_query(" SELECT fid id, pid parent_id, left(name, 50) name, description FROM #{TABLE_PREFIX}forums ORDER BY pid ASC, fid ASC ") create_categories(results) do |row| h = {id: row['id'], name: CGI.unescapeHTML(row['name']), description: CGI.unescapeHTML(row['description'])} if row['parent_id'].to_i > 0 h[:parent_category_id] = category_id_from_imported_category_id(row['parent_id']) end h end end def import_posts puts "", "creating topics and posts" total_count = mysql_query("SELECT count(*) count from #{TABLE_PREFIX}posts").first["count"] batches(BATCH_SIZE) do |offset| results = mysql_query(" SELECT p.pid id, p.tid topic_id, t.fid category_id, t.subject title, t.firstpost first_post_id, p.uid user_id, p.message raw, p.dateline post_time FROM #{TABLE_PREFIX}posts p, #{TABLE_PREFIX}threads t WHERE p.tid = t.tid ORDER BY p.dateline LIMIT #{BATCH_SIZE} OFFSET #{offset}; ") break if results.size < 1 next if all_records_exist? :posts, results.map {|m| m['id'].to_i} create_posts(results, total: total_count, offset: offset) do |m| skip = false mapped = {} # If you have imported a phpbb forum to mybb previously there might # be a problem with #{TABLE_PREFIX}threads.firstpost. If these ids are wrong # the thread cannot be imported to discourse as the topic post is # missing. This query retrieves the first_post_id manually. As it # will decrease the performance it is commented out by default. # m['first_post_id'] = mysql_query(" # SELECT p.pid id, # FROM #{TABLE_PREFIX}posts p, # #{TABLE_PREFIX}threads t # WHERE p.tid = #{m['topic_id']} AND t.tid = #{m['topic_id']} # ORDER BY p.dateline # LIMIT 1 # ").first['id'] mapped[:id] = m['id'] mapped[:user_id] = user_id_from_imported_user_id(m['user_id']) || -1 mapped[:raw] = process_mybb_post(m['raw'], m['id']) mapped[:created_at] = Time.zone.at(m['post_time']) if m['id'] == m['first_post_id'] mapped[:category] = category_id_from_imported_category_id(m['category_id']) mapped[:title] = CGI.unescapeHTML(m['title']) else parent = topic_lookup_from_imported_post_id(m['first_post_id']) if parent mapped[:topic_id] = parent[:topic_id] else puts "Parent post #{m['first_post_id']} doesn't exist. Skipping #{m["id"]}: #{m["title"][0..40]}" skip = true end end skip ? nil : mapped end end end def import_private_messages puts "", "private messages are not implemented" end def suspend_users puts '', "banned users are not implemented" end # Discourse usernames don't allow spaces def convert_username(username, post_id) count = 0 username.gsub!(/\s+/) { |a| count += 1; '_' } # Warn on MyBB bug that places post text in the quote line - http://community.mybb.com/thread-180526.html if count > 5 puts "Warning: probably incorrect quote in post #{post_id}" end return username end # Take an original post id and return the migrated topic id and post number for it def post_id_to_post_num_and_topic(quoted_post_id, post_id) quoted_post_id_from_imported = post_id_from_imported_post_id(quoted_post_id.to_i) if quoted_post_id_from_imported begin post = Post.find(quoted_post_id_from_imported) return "post:#{post.post_number}, topic:#{post.topic_id}" rescue puts "Could not find migrated post #{quoted_post_id_from_imported} quoted by original post #{post_id} as #{quoted_post_id}" return "" end else puts "Original post #{post_id} quotes nonexistent post #{quoted_post_id}" return "" end end def process_mybb_post(raw, import_id) s = raw.dup # convert the quote line s.gsub!(/\[quote='([^']+)'.*?pid='(\d+).*?\]/) { "[quote=\"#{convert_username($1, import_id)}, " + post_id_to_post_num_and_topic($2, import_id) + '"]' } # :) is encoded as :) s.gsub!(/(?:.*)/, '\1') # Some links look like this: http://www.onegameamonth.com s.gsub!(/(.+)<\/a>/, '[\2](\1)') # Many phpbb bbcode tags have a hash attached to them. Examples: # [url=https://google.com:1qh1i7ky]click here[/url:1qh1i7ky] # [quote="cybereality":b0wtlzex]Some text.[/quote:b0wtlzex] s.gsub!(/:(?:\w{8})\]/, ']') # Remove mybb video tags. s.gsub!(/(^\[video=.*?\])|(\[\/video\]$)/, '') s = CGI.unescapeHTML(s) # phpBB shortens link text like this, which breaks our markdown processing: # [http://answers.yahoo.com/question/index ... 223AAkkPli](http://answers.yahoo.com/question/index?qid=20070920134223AAkkPli) # # Work around it for now: s.gsub!(/\[http(s)?:\/\/(www\.)?/, '[') s end def create_permalinks puts '', 'Creating redirects...', '' SiteSetting.permalink_normalizations= '/(\\w+)-(\\d+)[-.].*/\\1-\\2.html' puts '', 'Users...', '' total_users = User.count start_time = Time.now count = 0 User.find_each do |u| ucf = u.custom_fields count += 1 if ucf && ucf["import_id"] && ucf["import_username"] Permalink.create(url: "#{BASE}/user-#{ucf['import_id']}.html", external_url: "/u/#{u.username}" ) rescue nil end print_status(count, total_users, start_time) end puts '', 'Categories...', '' total_categories = Category.count start_time = Time.now count = 0 Category.find_each do |cat| ccf = cat.custom_fields count += 1 next unless id = ccf["import_id"] unless QUIET puts ("forum-#{id}.html --> /c/#{cat.id}") end Permalink.create( url: "#{BASE}/forum-#{id}.html", category_id: cat.id ) rescue nil print_status(count, total_categories, start_time) end puts '', 'Topics...', '' total_posts = Post.count start_time = Time.now count = 0 puts '', 'Posts...', '' batches(BATCH_SIZE) do |offset| results = mysql_query(" SELECT p.pid id, p.tid topic_id FROM #{TABLE_PREFIX}posts p, #{TABLE_PREFIX}threads t WHERE p.tid = t.tid AND t.firstpost=p.pid ORDER BY p.dateline LIMIT #{BATCH_SIZE} OFFSET #{offset}; ") break if results.size < 1 results.each do |post| count += 1 if topic = topic_lookup_from_imported_post_id(post['id']) id = post['topic_id'] Permalink.create( url: "#{BASE}/thread-#{id}.html", topic_id: topic[:topic_id] ) rescue nil unless QUIET puts ("#{BASE}/thread-#{id}.html --> http://localhost:3000/t/#{topic[:topic_id]}") end print_status(count, total_posts, start_time) end end end end def mysql_query(sql) @client.query(sql, cache_rows: false) end end ImportScripts::MyBB.new.perform