392 lines
13 KiB
Ruby
392 lines
13 KiB
Ruby
require File.expand_path(File.dirname(__FILE__) + "/../../config/environment")
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require File.expand_path(File.dirname(__FILE__) + "/base.rb")
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require "mysql2"
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class ImportScripts::PhpBB3 < ImportScripts::Base
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include ActionView::Helpers::NumberHelper
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PHPBB_DB = "phpbb"
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BATCH_SIZE = 1000
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ORIGINAL_SITE_PREFIX = "oldsite.example.com/forums" # without http(s)://
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NEW_SITE_PREFIX = "http://discourse.example.com" # with http:// or https://
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# Set ATTACHMENTS_BASE_DIR to the base directory where attachment files are found.
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# If nil, [attachment] tags won't be processed.
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# Edit AUTHORIZED_EXTENSIONS as needed.
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ATTACHMENTS_BASE_DIR = nil
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AUTHORIZED_EXTENSIONS = ['jpg', 'jpeg', 'png', 'gif', 'zip', 'rar']
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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: "password",
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database: PHPBB_DB
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)
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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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import_private_messages
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import_attachments unless ATTACHMENTS_BASE_DIR.nil?
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suspend_users
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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
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FROM phpbb_users u
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JOIN phpbb_groups g ON g.group_id = u.group_id
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WHERE g.group_name != 'BOTS'
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AND u.user_type != 1;").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, user_email email, username, user_regdate, group_name
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FROM phpbb_users u
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JOIN phpbb_groups g ON g.group_id = u.group_id
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WHERE g.group_name != 'BOTS'
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AND u.user_type != 1
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ORDER BY u.user_id ASC
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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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create_users(results, total: total_count, offset: offset) do |user|
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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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created_at: Time.zone.at(user['user_regdate']),
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moderator: user['group_name'] == 'GLOBAL_MODERATORS',
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admin: user['group_name'] == 'ADMINISTRATORS' }
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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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results = mysql_query("
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SELECT forum_id id, parent_id, left(forum_name, 50) name, forum_desc description
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FROM phpbb_forums
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ORDER BY parent_id ASC, forum_id ASC
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")
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create_categories(results) do |row|
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h = {id: row['id'], name: CGI.unescapeHTML(row['name']), description: CGI.unescapeHTML(row['description'])}
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if row['parent_id'].to_i > 0
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parent = category_from_imported_category_id(row['parent_id'])
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h[:parent_category_id] = parent.id if parent
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end
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h
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end
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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 phpbb_posts").first["count"]
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batches(BATCH_SIZE) do |offset|
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results = mysql_query("
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SELECT p.post_id id,
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p.topic_id topic_id,
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t.forum_id category_id,
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t.topic_title title,
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t.topic_first_post_id first_post_id,
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p.poster_id user_id,
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p.post_text raw,
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p.post_time post_time
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FROM phpbb_posts p,
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phpbb_topics t
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WHERE p.topic_id = t.topic_id
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ORDER BY id
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LIMIT #{BATCH_SIZE}
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OFFSET #{offset};
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")
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break if results.size < 1
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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_phpbb_post(m['raw'], m['id'])
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mapped[:created_at] = Time.zone.at(m['post_time'])
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if m['id'] == m['first_post_id']
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mapped[:category] = category_from_imported_category_id(m['category_id']).try(:name)
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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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end
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def import_private_messages
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puts "", "creating private messages"
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total_count = mysql_query("SELECT count(*) count from phpbb_privmsgs").first["count"]
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batches(BATCH_SIZE) do |offset|
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results = mysql_query("
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SELECT msg_id id,
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root_level,
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author_id user_id,
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message_time,
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message_subject,
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message_text
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FROM phpbb_privmsgs
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ORDER BY root_level ASC, msg_id ASC
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LIMIT #{BATCH_SIZE}
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OFFSET #{offset};
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")
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break if results.size < 1
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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] = "pm:#{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_phpbb_post(m['message_text'], m['id'])
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mapped[:created_at] = Time.zone.at(m['message_time'])
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if m['root_level'] == 0
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mapped[:title] = CGI.unescapeHTML(m['message_subject'])
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mapped[:archetype] = Archetype.private_message
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# Find the users who are part of this private message.
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# Found from the to_address of phpbb_privmsgs, by looking at
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# all the rows with the same root_level.
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# to_address looks like this: "u_91:u_1234:u_200"
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# The "u_" prefix is discarded and the rest is a user_id.
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import_user_ids = mysql_query("
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SELECT to_address
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FROM phpbb_privmsgs
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WHERE msg_id = #{m['id']}
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OR root_level = #{m['id']}").map { |r| r['to_address'].split(':') }.flatten!.map! { |u| u[2..-1] }
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mapped[:target_usernames] = import_user_ids.map! do |import_user_id|
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import_user_id.to_s == m['user_id'].to_s ? nil : User.find_by_id(user_id_from_imported_user_id(import_user_id)).try(:username)
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end.compact.uniq
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skip = true if mapped[:target_usernames].empty? # pm with yourself?
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else
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parent = topic_lookup_from_imported_post_id("pm:#{m['root_level']}")
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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 pm:#{m['root_level']} doesn't exist. Skipping #{m["id"]}: #{m["message_subject"][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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end
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def suspend_users
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puts '', "updating banned users"
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where = "ban_userid > 0 AND (ban_end = 0 OR ban_end > #{Time.zone.now.to_i})"
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banned = 0
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failed = 0
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total = mysql_query("SELECT count(*) count FROM phpbb_banlist WHERE #{where}").first['count']
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system_user = Discourse.system_user
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mysql_query("SELECT ban_userid, ban_start, ban_end, ban_give_reason FROM phpbb_banlist WHERE #{where}").each do |b|
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user = find_user_by_import_id(b['ban_userid'])
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if user
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user.suspended_at = Time.zone.at(b['ban_start'])
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user.suspended_till = b['ban_end'] > 0 ? Time.zone.at(b['ban_end']) : 200.years.from_now
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if user.save
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StaffActionLogger.new(system_user).log_user_suspend(user, b['ban_give_reason'])
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banned += 1
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else
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puts "Failed to suspend user #{user.username}. #{user.errors.try(:full_messages).try(:inspect)}"
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failed += 1
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end
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else
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puts "Not found: #{b['ban_userid']}"
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failed += 1
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end
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print_status banned + failed, total
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end
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end
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def process_phpbb_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+) -->(?:.*)<!-- s(?:\S+) -->/, '\1')
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# Internal forum links of this form: <!-- l --><a class="postlink-local" href="https://example.com/forums/viewtopic.php?f=26&t=3412">viewtopic.php?f=26&t=3412</a><!-- l -->
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s.gsub!(/<!-- l --><a(?:.+)href="(?:\S+)"(?:.*)>viewtopic(?:.*)t=(\d+)<\/a><!-- l -->/) do |phpbb_link|
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replace_internal_link(phpbb_link, $1, import_id)
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end
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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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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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# Work around it for now:
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s.gsub!(/\[http(s)?:\/\/(www\.)?/, '[')
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# Replace internal forum links that aren't in the <!-- l --> format
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s.gsub!(internal_url_regexp) do |phpbb_link|
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replace_internal_link(phpbb_link, $1, import_id)
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end
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s
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end
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def replace_internal_link(phpbb_link, import_topic_id, from_import_post_id)
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results = mysql_query("select topic_first_post_id from phpbb_topics where topic_id = #{import_topic_id}")
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return phpbb_link unless results.size > 0
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linked_topic_id = results.first['topic_first_post_id']
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lookup = topic_lookup_from_imported_post_id(linked_topic_id)
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return phpbb_link unless lookup
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t = Topic.find_by_id(lookup[:topic_id])
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if t
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"#{NEW_SITE_PREFIX}/t/#{t.slug}/#{t.id}"
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else
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phpbb_link
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end
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end
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def internal_url_regexp
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@internal_url_regexp ||= Regexp.new("http(?:s)?://#{ORIGINAL_SITE_PREFIX.gsub('.', '\.')}/viewtopic\\.php?(?:\\S*)t=(\\d+)")
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end
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# This step is done separately because it can take multiple attempts to get right (because of
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# missing files, wrong paths, authorized extensions, etc.).
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def import_attachments
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setting = AUTHORIZED_EXTENSIONS.join('|')
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SiteSetting.authorized_extensions = setting if setting != SiteSetting.authorized_extensions
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r = /\[attachment=[\d]+\]<\!-- [\w]+ --\>([\S]+)<\!-- [\w]+ --\>\[\/attachment\]/
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user = Discourse.system_user
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current_count = 0
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total_count = Post.count
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success_count = 0
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fail_count = 0
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puts '', "Importing attachments...", ''
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Post.find_each do |post|
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current_count += 1
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print_status current_count, total_count
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new_raw = post.raw.dup
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new_raw.gsub!(r) do |s|
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matches = r.match(s)
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real_filename = matches[1]
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sql = "SELECT physical_filename,
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mimetype
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FROM phpbb_attachments
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WHERE post_msg_id = #{post.custom_fields['import_id']}
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AND real_filename = '#{real_filename}';"
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begin
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results = mysql_query(sql)
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rescue Mysql2::Error => e
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puts "SQL Error"
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puts e.message
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puts sql
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fail_count += 1
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next s
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end
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row = results.first
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if !row
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puts "Couldn't find phpbb_attachments record for post.id = #{post.id}, import_id = #{post.custom_fields['import_id']}, real_filename = #{real_filename}"
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fail_count += 1
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next s
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end
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filename = File.join(ATTACHMENTS_BASE_DIR, row['physical_filename'])
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if !File.exists?(filename)
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puts "Attachment file doesn't exist: #{filename}"
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fail_count += 1
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next s
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end
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upload = create_upload(user.id, filename, real_filename)
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if upload.nil? || !upload.valid?
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puts "Upload not valid :("
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puts upload.errors.inspect if upload
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fail_count += 1
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next s
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end
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success_count += 1
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if FileHelper.is_image?(upload.url)
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%Q[<img src="#{upload.url}" width="#{[upload.width, 640].compact.min}" height="#{[upload.height,480].compact.min}"><br/>]
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else
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"<a class='attachment' href='#{upload.url}'>#{real_filename}</a> (#{number_to_human_size(upload.filesize)})"
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end
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end
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if new_raw != post.raw
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PostRevisor.new(post).revise!(post.user, new_raw, {bypass_bump: true, edit_reason: 'Migrate from PHPBB3'})
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end
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end
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puts '', ''
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puts "succeeded: #{success_count}"
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puts " failed: #{fail_count}" if fail_count > 0
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puts ''
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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::PhpBB3.new.perform
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