Merge pull request #3176 from fantasticfears/discuz
add Discuz! X importer
This commit is contained in:
Robin Ward
commit
853e6d6cb7
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@ -0,0 +1,625 @@
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# encoding: utf-8
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#
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# Author: Erick Guan <fantasticfears@gmail.com>
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#
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# This script import the data from latest Discuz! X
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# Should work among Discuz! X3.x
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# This script is tested only on Simplified Chinese Discuz! X instances
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# If you want to import data other than Simplified Chinese, email me.
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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::DiscuzX < ImportScripts::Base
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DISCUZX_DB = "ultrax"
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DB_TABLE_PREFIX = 'pre_'
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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 DISCUZX_BASE_DIR to the base directory of your discuz installation.
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DISCUZX_BASE_DIR = '/var/www/discuz/upload'
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AVATAR_DIR = '/uc_server/data/avatar'
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ATTACHMENT_DIR = '/data/attachment/forum'
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AUTHORIZED_EXTENSIONS = ['jpg', 'jpeg', 'png', 'gif', 'zip', 'rar', 'pdf']
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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: DISCUZX_DB
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)
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@first_post_id_by_topic_id = {}
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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
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end
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# add the prefix to the table name
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def table_name(name = nil)
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DB_TABLE_PREFIX + name
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end
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# find which group members can be granted as admin
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def get_knowledge_about_group
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group_table = table_name 'common_usergroup'
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result = mysql_query(
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"SELECT groupid group_id, radminid role_id, type, grouptitle title
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FROM #{group_table};")
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@moderator_group_id = -1
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@admin_group_id = -1
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result.each do |group|
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role_id = group['role_id']
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group_id = group['group_id']
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case group['title'].strip
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when '管理员'
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@admin_admin_id = role_id
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when '超级版主'
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@moderator_admin_id = role_id
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end
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end
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end
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def import_users
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puts '', "creating users"
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get_knowledge_about_group
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sensitive_user_table = table_name 'ucenter_members'
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user_table = table_name 'common_member'
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profile_table = table_name 'common_member_profile'
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status_table = table_name 'common_member_status'
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total_count = mysql_query("SELECT count(*) count FROM #{user_table};").first['count']
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batches(BATCH_SIZE) do |offset|
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results = mysql_query(
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"SELECT u.uid id, u.username username, u.email email, u.adminid admin_id, su.regdate regdate, s.regip regip,
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u.emailstatus email_confirmed, u.avatarstatus avatar_exists, p.site website, p.resideprovince province,
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p.residecity city, p.residedist country, p.residecommunity community, p.residesuite apartment,
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p.bio bio, s.lastip last_visit_ip, s.lastvisit last_visit_time, s.lastpost last_posted_at,
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s.lastsendmail last_emailed_at
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FROM #{user_table} u
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JOIN #{sensitive_user_table} su ON su.uid = u.uid
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JOIN #{profile_table} p ON p.uid = u.uid
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JOIN #{status_table} s ON s.uid = u.uid
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ORDER BY u.uid 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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name: user['username'],
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created_at: Time.zone.at(user['regdate']),
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registration_ip_address: user['regip'],
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ip_address: user['last_visit_ip'],
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last_seen_at: user['last_visit_time'],
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last_emailed_at: user['last_emailed_at'],
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last_posted_at: user['last_posted_at'],
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moderator: user['admin_id'] == @moderator_admin_id,
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admin: user['admin_id'] == @admin_admin_id,
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active: true,
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website: user['website'],
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bio_raw: user['bio'],
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location: "#{user['province']}#{user['city']}#{user['country']}#{user['community']}#{user['apartment']}",
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post_create_action: lambda do |newmember|
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if user['avatar_exists'] == 1 and newmember.uploaded_avatar_id.blank?
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path, filename = discuzx_avatar_fullpath(user['id'])
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if path
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begin
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upload = create_upload(newmember.id, path, filename)
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if upload.persisted?
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newmember.import_mode = false
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newmember.create_user_avatar
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newmember.import_mode = true
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newmember.user_avatar.update(custom_upload_id: upload.id)
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newmember.update(uploaded_avatar_id: upload.id)
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else
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puts "Error: Upload did not persist!"
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end
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rescue SystemCallError => err
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puts "Could not import avatar: #{err.message}"
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end
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end
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end
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# we don't send email to the unconfirmed user
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newmember.update(email_digests: user['email_confirmed'] == 1) if newmember.email_digests
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end
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}
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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 '', "creating categories"
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forums_table = table_name 'forum_forum'
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forums_data_table = table_name 'forum_forumfield'
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results = mysql_query("
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SELECT f.fid id, f.fup parent_id, f.name, f.type type, f.status status, f.displayorder position,
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d.description description
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FROM #{forums_table} f
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JOIN #{forums_data_table} d ON f.fid = d.fid
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ORDER BY parent_id ASC, id ASC
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")
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max_position = Category.all.max_by(&:position).position
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create_categories(results) do |row|
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next if row['type'] == 'group' || row['status'].to_i == 3
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Category.all.max_by(&:position).position
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h = {
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id: row['id'],
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name: row['name'],
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description: row['description'],
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position: row['position'].to_i + max_position
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}
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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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posts_table = table_name 'forum_post'
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topics_table = table_name 'forum_thread'
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total_count = mysql_query("SELECT count(*) count FROM #{posts_table}").first['count']
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batches(BATCH_SIZE) do |offset|
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results = mysql_query("
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SELECT p.pid id,
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p.tid topic_id,
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t.fid category_id,
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t.subject title,
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p.authorid user_id,
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p.message raw,
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p.dateline post_time,
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p.first is_first_post,
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p.invisible status
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FROM #{posts_table} p,
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#{topics_table} t
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WHERE p.tid = t.tid
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ORDER BY id ASC, topic_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] = 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_discuzx_post(m['raw'], m['id'])
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mapped[:created_at] = Time.zone.at(m['post_time'])
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if m['is_first_post'] == 1
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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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@first_post_id_by_topic_id[m['topic_id']] = m['id']
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else
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parent = topic_lookup_from_imported_post_id(@first_post_id_by_topic_id[m['topic_id']])
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if parent
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mapped[:topic_id] = parent[:topic_id]
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post_id = post_id_from_imported_post_id(find_post_id_by_quote_number(m['raw']).to_i)
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if (post = Post.find_by(id: post_id))
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mapped[:reply_to_post_number] = post.post_number
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end
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else
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puts "Parent topic #{m['topic_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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if [-5, -3, -1].include? m['status'] || mapped[:raw].blank?
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mapped[:post_create_action] = lambda do |post|
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PostDestroyer.new(Discourse.system_user, post).perform_delete
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end
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elsif m['status'] == -2# waiting for approve
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mapped[:post_create_action] = lambda do |post|
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PostAction.act(Discourse.system_user, post, 6, {take_action: false})
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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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pm_indexes = table_name 'ucenter_pm_indexes'
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pm_messages = table_name 'ucenter_pm_messages'
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total_count = mysql_query("SELECT count(*) count FROM #{pm_indexes}").first['count']
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batches(BATCH_SIZE) do |offset|
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results = mysql_query("
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SELECT pmid id, plid thread_id, authorid user_id, message, dateline created_at
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FROM #{pm_messages}_1
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UNION SELECT pmid id, plid thread_id, authorid user_id, message, dateline created_at
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FROM #{pm_messages}_2
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UNION SELECT pmid id, plid thread_id, authorid user_id, message, dateline created_at
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FROM #{pm_messages}_3
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UNION SELECT pmid id, plid thread_id, authorid user_id, message, dateline created_at
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FROM #{pm_messages}_4
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UNION SELECT pmid id, plid thread_id, authorid user_id, message, dateline created_at
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FROM #{pm_messages}_5
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UNION SELECT pmid id, plid thread_id, authorid user_id, message, dateline created_at
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FROM #{pm_messages}_6
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UNION SELECT pmid id, plid thread_id, authorid user_id, message, dateline created_at
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FROM #{pm_messages}_7
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UNION SELECT pmid id, plid thread_id, authorid user_id, message, dateline created_at
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FROM #{pm_messages}_8
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UNION SELECT pmid id, plid thread_id, authorid user_id, message, dateline created_at
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FROM #{pm_messages}_9
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ORDER BY thread_id ASC, 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_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_discuzx_post(m['message'], m['id'])
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mapped[:created_at] = Time.zone.at(m['created_at'])
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thread_id = "pm_#{m['thread_id']}"
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if is_first_pm(m['id'], m['thread_id'])
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# find the title from list table
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pm_thread = mysql_query("
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SELECT plid thread_id, subject
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FROM #{table_name 'ucenter_pm_lists'}
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WHERE plid = #{m['thread_id']};").first
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mapped[:title] = pm_thread['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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import_user_ids = mysql_query("
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SELECT plid thread_id, uid user_id
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FROM #{table_name 'ucenter_pm_members'}
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WHERE plid = #{m['thread_id']};
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").map {|r| r['user_id']}.uniq
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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
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if mapped[:target_usernames].empty? # pm with yourself?
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skip = true
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puts "Skipping pm:#{m['id']} due to no target"
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else
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@first_post_id_by_topic_id[thread_id] = mapped[:id]
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end
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else
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parent = topic_lookup_from_imported_post_id(@first_post_id_by_topic_id[thread_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 pm thread:#{thread_id} doesn't exist. Skipping #{m["id"]}: #{m["message"][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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# search for first pm id for the series of pm
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def is_first_pm(pm_id, thread_id)
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result = mysql_query("
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SELECT pmid id
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FROM #{table_name 'ucenter_pm_indexes'}
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WHERE plid = #{thread_id}
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ORDER BY id")
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result.first['id'].to_s == pm_id.to_s
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end
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def process_discuzx_post(raw, import_id)
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inline_image_regex = /\[img\]([\s\S]*?)\[\/img\]/
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s = raw.dup
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s.gsub!(inline_image_regex) do |d|
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matches = inline_image_regex.match(d)
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data = matches[1]
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upload, filename = upload_inline_image data
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upload ? html_for_upload(upload, filename) : nil
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end
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# Strip the quote
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# [quote] quotation includes the topic which is the same as reply to in Discourse
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# We get the pid to find the post number the post reply to. So it can be stripped
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s = s.gsub(/\[quote\][\s\S]*?\[\/quote\]/i, '').strip
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# Remove the font tag
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# Discourse doesn't support the font tag
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s.gsub!(/\[font=[^ \t\r\n\f\]]*?\]/i, '')
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s.gsub!(/\[\/font\]/i, '')
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# Remove the size tag
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# I really have no idea what is this
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s.gsub!(/\[size=[^ \t\r\n\f\]]*?\]/i, '')
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s.gsub!(/\[\/size\]/i, '')
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# Remove the color tag
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s.gsub!(/\[color=[^ \t\r\n\f\]]*?\]/i, '')
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s.gsub!(/\[\/color\]/i, '')
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# Remove the align tag
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# still don't know what it is
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s.gsub!(/\[align=[^ \t\r\n\f\]]*?\]/i, '')
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s.gsub!(/\[\/align\]/i, "\n")
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# Convert code
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s.gsub!(/\[code\]/i, "\n```\n")
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s.gsub!(/\[\/code\]/i, "\n```\n")
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# The edit notice should be removed
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# example: 本帖最后由 Helloworld 于 2015-1-28 22:05 编辑
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s.gsub!(/\[i=s\] 本帖最后由[\s\S]*?编辑 \[\/i\]/, '')
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# Convert the custom smileys to emojis
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# `{:cry:}` to `:cry`
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s.gsub!(/\{(\:\S*?\:)\}/, '\1')
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||||
# Replace internal forum links that aren't in the <!-- l --> format
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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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||||
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# Discuz can create PM out of a post, which will generates like
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# [url=http://example.com/forum.php?mod=redirect&goto=findpost&pid=111&ptid=11][b]关于您在“主题名称”的帖子[/b][/url]
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||||
s.gsub!(pm_url_regexp) do |discuzx_link|
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replace_internal_link(discuzx_link, $1)
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||||
end
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||||
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# [url][b]text[/b][/url] to **[url]text[/url]**
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s.gsub!(/(\[url=[^\[\]]*?\])\[b\](\S*)\[\/b\](\[\/url\])/, '**\1\2\3**')
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||||
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||||
s.gsub!(internal_url_regexp) do |discuzx_link|
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replace_internal_link(discuzx_link, $1)
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||||
end
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||||
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||||
# @someone without the url
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||||
s.gsub!(/@\[url=[^\[\]]*?\](\S*)\[\/url\]/i, '@\1')
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||||
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||||
s.strip
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||||
end
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||||
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||||
def replace_internal_link(discuzx_link, import_topic_id)
|
||||
results = mysql_query("SELECT pid
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||||
FROM #{table_name 'forum_post'}
|
||||
WHERE tid = #{import_topic_id}
|
||||
ORDER BY pid ASC
|
||||
LIMIT 1")
|
||||
|
||||
return discuzx_link unless results.size > 0
|
||||
|
||||
linked_topic_id = results.first['pid']
|
||||
lookup = topic_lookup_from_imported_post_id(linked_topic_id)
|
||||
|
||||
return discuzx_link unless lookup
|
||||
|
||||
if (t = Topic.find_by(id: lookup[:topic_id]))
|
||||
"#{NEW_SITE_PREFIX}/t/#{t.slug}/#{t.id}"
|
||||
else
|
||||
discuzx_link
|
||||
end
|
||||
end
|
||||
|
||||
def internal_url_regexp
|
||||
@internal_url_regexp ||= Regexp.new("http(?:s)?://#{ORIGINAL_SITE_PREFIX.gsub('.', '\.')}/forum\\.php\\?mod=viewthread&tid=(\\d+)(?:[^\\]\\[]*)")
|
||||
end
|
||||
|
||||
def pm_url_regexp
|
||||
@pm_url_regexp ||= Regexp.new("http(?:s)?://#{ORIGINAL_SITE_PREFIX.gsub('.', '\.')}/forum\\.php\\?mod=redirect&goto=findpost&pid=\\d+&ptid=(\\d+)")
|
||||
end
|
||||
|
||||
# This step is done separately because it can take multiple attempts to get right (because of
|
||||
# missing files, wrong paths, authorized extensions, etc.).
|
||||
def import_attachments
|
||||
setting = AUTHORIZED_EXTENSIONS.join('|')
|
||||
SiteSetting.authorized_extensions = setting if setting != SiteSetting.authorized_extensions
|
||||
|
||||
attachment_regex = /\[attach\](\d+)\[\/attach\]/
|
||||
|
||||
user = Discourse.system_user
|
||||
|
||||
current_count = 0
|
||||
total_count = mysql_query("SELECT count(*) count FROM #{table_name 'forum_post'};").first['count']
|
||||
|
||||
success_count = 0
|
||||
fail_count = 0
|
||||
|
||||
puts '', "Importing attachments...", ''
|
||||
|
||||
Post.find_each do |post|
|
||||
current_count += 1
|
||||
print_status current_count, total_count
|
||||
|
||||
new_raw = post.raw.dup
|
||||
new_raw.gsub!(attachment_regex) do |s|
|
||||
matches = attachment_regex.match(s)
|
||||
attachment_id = matches[1]
|
||||
|
||||
upload, filename = find_upload(user, post, attachment_id)
|
||||
unless upload
|
||||
fail_count += 1
|
||||
next
|
||||
end
|
||||
|
||||
html_for_upload(upload, filename)
|
||||
end
|
||||
|
||||
if new_raw != post.raw
|
||||
PostRevisor.new(post).revise!(post.user, { raw: new_raw }, { bypass_bump: true, edit_reason: '从 Discuz 中导入附件' })
|
||||
end
|
||||
|
||||
success_count += 1
|
||||
end
|
||||
|
||||
puts '', ''
|
||||
puts "succeeded: #{success_count}"
|
||||
puts " failed: #{fail_count}" if fail_count > 0
|
||||
puts ''
|
||||
end
|
||||
|
||||
# Create the full path to the discuz avatar specified from user id
|
||||
def discuzx_avatar_fullpath(user_id)
|
||||
padded_id = user_id.to_s.rjust(9, '0')
|
||||
|
||||
part_1 = padded_id[0..2]
|
||||
part_2 = padded_id[3..4]
|
||||
part_3 = padded_id[5..6]
|
||||
part_4 = padded_id[-2..-1]
|
||||
file_name = "#{part_4}_avatar_big.jpg"
|
||||
|
||||
return File.join(DISCUZX_BASE_DIR, AVATAR_DIR, part_1, part_2, part_3, file_name), file_name
|
||||
end
|
||||
|
||||
# post id is in the quote block
|
||||
def find_post_id_by_quote_number(raw)
|
||||
s = raw.dup
|
||||
quote_post_id = s.match(/\[quote\][\S\s]*pid=(\d+)[\S\s]*\[\/quote\]/)
|
||||
|
||||
quote_post_id ? quote_post_id[1] : nil
|
||||
end
|
||||
|
||||
# for some reason, discuz inlined some png file
|
||||
# the corresponding image stored is broken in a way
|
||||
def upload_inline_image(data)
|
||||
return unless data
|
||||
|
||||
puts 'Creating inline image'
|
||||
|
||||
encoded_photo = data['data:image/png;base64,'.length .. -1]
|
||||
if encoded_photo
|
||||
raw_file = Base64.decode64(encoded_photo)
|
||||
else
|
||||
puts 'Error parsed inline photo', data[0..20]
|
||||
return
|
||||
end
|
||||
|
||||
real_filename = "#{SecureRandom.hex}.png"
|
||||
filename = Tempfile.new(['inline', '.png'])
|
||||
begin
|
||||
filename.binmode
|
||||
filename.write(raw_file)
|
||||
filename.rewind
|
||||
|
||||
upload = create_upload(Discourse::SYSTEM_USER_ID, filename, real_filename)
|
||||
ensure
|
||||
filename.close rescue nil
|
||||
filename.unlink rescue nil
|
||||
end
|
||||
|
||||
if upload.nil? || !upload.valid?
|
||||
puts "Upload not valid :("
|
||||
puts upload.errors.inspect if upload
|
||||
return nil
|
||||
end
|
||||
|
||||
return upload, real_filename
|
||||
end
|
||||
|
||||
# find the uploaded file and real name from the db
|
||||
def find_upload(user, post, upload_id)
|
||||
attachment_table = table_name 'forum_attachment'
|
||||
# search for table id
|
||||
sql = "SELECT a.pid post_id,
|
||||
a.aid upload_id,
|
||||
a.tableid table_id
|
||||
FROM #{attachment_table} a
|
||||
WHERE a.pid = #{post.custom_fields['import_id']}
|
||||
AND a.aid = #{upload_id};"
|
||||
results = mysql_query(sql)
|
||||
|
||||
unless (meta_data = results.first)
|
||||
puts "Couldn't find forum_attachment record meta data for post.id = #{post.id}, import_id = #{post.custom_fields['import_id']}"
|
||||
return nil
|
||||
end
|
||||
|
||||
# search for uploaded file meta data
|
||||
sql = "SELECT a.pid post_id,
|
||||
a.aid upload_id,
|
||||
a.tid topic_id,
|
||||
a.uid user_id,
|
||||
a.dateline uploaded_time,
|
||||
a.filename real_filename,
|
||||
a.attachment attachment_path,
|
||||
a.remote is_remote,
|
||||
a.description description,
|
||||
a.isimage is_image,
|
||||
a.thumb is_thumb
|
||||
FROM #{attachment_table}_#{meta_data['table_id']} a
|
||||
WHERE a.aid = #{upload_id};"
|
||||
results = mysql_query(sql)
|
||||
|
||||
unless (row = results.first)
|
||||
puts "Couldn't find attachment record for post.id = #{post.id}, import_id = #{post.custom_fields['import_id']}"
|
||||
return nil
|
||||
end
|
||||
|
||||
filename = File.join(DISCUZX_BASE_DIR, ATTACHMENT_DIR, row['attachment_path'])
|
||||
unless File.exists?(filename)
|
||||
puts "Attachment file doesn't exist: #{filename}"
|
||||
return nil
|
||||
end
|
||||
real_filename = row['real_filename']
|
||||
real_filename.prepend SecureRandom.hex if real_filename[0] == '.'
|
||||
upload = create_upload(user.id, filename, real_filename)
|
||||
|
||||
if upload.nil? || !upload.valid?
|
||||
puts "Upload not valid :("
|
||||
puts upload.errors.inspect if upload
|
||||
return nil
|
||||
end
|
||||
|
||||
return upload, real_filename
|
||||
rescue Mysql2::Error => e
|
||||
puts "SQL Error"
|
||||
puts e.message
|
||||
puts sql
|
||||
return nil
|
||||
end
|
||||
|
||||
def mysql_query(sql)
|
||||
@client.query(sql, cache_rows: false)
|
||||
end
|
||||
end
|
||||
|
||||
ImportScripts::DiscuzX.new.perform
|
||||
Loading…
Reference in New Issue