discourse/script/import_scripts/mybb.rb

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require File.expand_path(File.dirname(__FILE__) + "/base.rb")
require "mysql2"
# Call it like this:
# RAILS_ENV=production bundle exec ruby script/import_scripts/mybb.rb
class ImportScripts::MyBB < ImportScripts::Base
MYBB_DB = "mybb_db"
BATCH_SIZE = 1000
def initialize
super
@client = Mysql2::Client.new(
host: "localhost",
username: "root",
#password: "",
database: MYBB_DB
)
end
def execute
import_users
import_categories
import_posts
import_private_messages
suspend_users
end
def import_users
puts '', "creating users"
total_count = mysql_query("SELECT count(*) count
FROM mybb_users u
JOIN mybb_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 mybb_users u
JOIN mybb_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
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 mybb_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
parent = category_from_imported_category_id(row['parent_id'])
h[:parent_category_id] = parent.id if parent
end
h
end
end
def import_posts
puts "", "creating topics and posts"
total_count = mysql_query("SELECT count(*) count from mybb_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 mybb_posts p,
mybb_threads t
WHERE p.tid = t.tid
ORDER BY id
LIMIT #{BATCH_SIZE}
OFFSET #{offset};
")
break if results.size < 1
create_posts(results, total: total_count, offset: offset) do |m|
skip = false
mapped = {}
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_from_imported_category_id(m['category_id']).try(:name)
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
def process_mybb_post(raw, import_id)
s = raw.dup
# :) is encoded as <!-- s:) --><img src="{SMILIES_PATH}/icon_e_smile.gif" alt=":)" title="Smile" /><!-- s:) -->
s.gsub!(/<!-- s(\S+) -->(?:.*)<!-- s(?:\S+) -->/, '\1')
# Some links look like this: <!-- m --><a class="postlink" href="http://www.onegameamonth.com">http://www.onegameamonth.com</a><!-- m -->
s.gsub!(/<!-- \w --><a(?:.+)href="(\S+)"(?:.*)>(.+)<\/a><!-- \w -->/, '[\2](\1)')
# Many phpbb bbcode tags have a hash attached to them. Examples:
# [url=https&#58;//google&#46;com:1qh1i7ky]click here[/url:1qh1i7ky]
# [quote=&quot;cybereality&quot;:b0wtlzex]Some text.[/quote:b0wtlzex]
s.gsub!(/:(?:\w{8})\]/, ']')
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 mysql_query(sql)
@client.query(sql, cache_rows: false)
end
end
ImportScripts::MyBB.new.perform