393 lines
12 KiB
Ruby
393 lines
12 KiB
Ruby
require "mysql2"
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require File.expand_path(File.dirname(__FILE__) + "/base.rb")
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require 'htmlentities'
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class ImportScripts::VanillaSQL < ImportScripts::Base
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VANILLA_DB = "vanilla_mysql"
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TABLE_PREFIX = "GDN_"
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ATTACHMENTS_BASE_DIR = nil # "/absolute/path/to/attachments" set the absolute path if you have attachments
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BATCH_SIZE = 1000
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CONVERT_HTML = true
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def initialize
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super
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@htmlentities = HTMLEntities.new
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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: VANILLA_DB
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)
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@import_tags = false
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begin
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r = @client.query("select count(*) count from #{TABLE_PREFIX}Tag where countdiscussions > 0")
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@import_tags = true if r.first["count"].to_i > 0
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rescue => e
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puts "Tags won't be imported. #{e.message}"
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end
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end
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def execute
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if @import_tags
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SiteSetting.tagging_enabled = true
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SiteSetting.max_tags_per_topic = 10
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end
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import_users
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import_avatars
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import_categories
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import_topics
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import_posts
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update_tl0
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create_permalinks
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end
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def import_users
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puts '', "creating users"
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@user_is_deleted = false
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@last_deleted_username = nil
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username = nil
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@last_user_id = -1
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total_count = mysql_query("SELECT count(*) count FROM #{TABLE_PREFIX}User;").first['count']
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batches(BATCH_SIZE) do |offset|
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results = mysql_query(
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"SELECT UserID, Name, Title, Location, About, Email,
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DateInserted, DateLastActive, InsertIPAddress, Admin
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WHERE id > #{@last_user_id}
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FROM #{TABLE_PREFIX}User
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ORDER BY UserID ASC
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LIMIT #{BATCH_SIZE};")
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break if results.size < 1
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@last_user_id = results.to_a.last['UserID']
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next if all_records_exist? :users, results.map { |u| u['UserID'].to_i }
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create_users(results, total: total_count, offset: offset) do |user|
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next if user['Email'].blank?
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next if user['Name'].blank?
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next if @lookup.user_id_from_imported_user_id(user['UserID'])
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if user['Name'] == '[Deleted User]'
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# EVERY deleted user record in Vanilla has the same username: [Deleted User]
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# Save our UserNameSuggester some pain:
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@user_is_deleted = true
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username = @last_deleted_username || user['Name']
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else
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@user_is_deleted = false
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username = user['Name']
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end
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{ id: user['UserID'],
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email: user['Email'],
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username: username,
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name: user['Name'],
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created_at: user['DateInserted'] == nil ? 0 : Time.zone.at(user['DateInserted']),
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bio_raw: user['About'],
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registration_ip_address: user['InsertIPAddress'],
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last_seen_at: user['DateLastActive'] == nil ? 0 : Time.zone.at(user['DateLastActive']),
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location: user['Location'],
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admin: user['Admin'] == 1,
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post_create_action: proc do |newuser|
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if @user_is_deleted
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@last_deleted_username = newuser.username
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end
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end }
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end
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end
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end
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def import_avatars
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if ATTACHMENTS_BASE_DIR && File.exists?(ATTACHMENTS_BASE_DIR)
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puts "", "importing user avatars"
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User.find_each do |u|
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next unless u.custom_fields["import_id"]
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r = mysql_query("SELECT photo FROM #{TABLE_PREFIX}User WHERE UserID = #{u.custom_fields['import_id']};").first
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next if r.nil?
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photo = r["photo"]
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next unless photo.present?
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# Possible encoded values:
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# 1. cf://uploads/userpics/820/Y0AFUQYYM6QN.jpg
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# 2. ~cf/userpics2/cf566487133f1f538e02da96f9a16b18.jpg
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# 3. ~cf/userpics/txkt8kw1wozn.jpg
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photo_real_filename = nil
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parts = photo.squeeze("/").split("/")
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if parts[0] == "cf:"
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photo_path = "#{ATTACHMENTS_BASE_DIR}/#{parts[2..-2].join('/')}".squeeze("/")
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elsif parts[0] == "~cf"
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photo_path = "#{ATTACHMENTS_BASE_DIR}/#{parts[1..-2].join('/')}".squeeze("/")
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else
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puts "UNKNOWN FORMAT: #{photo}"
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next
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end
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if !File.exists?(photo_path)
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puts "Path to avatar file not found! Skipping. #{photo_path}"
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next
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end
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photo_real_filename = find_photo_file(photo_path, parts.last)
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if photo_real_filename.nil?
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puts "Couldn't find file for #{photo}. Skipping."
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next
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end
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print "."
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upload = create_upload(u.id, photo_real_filename, File.basename(photo_real_filename))
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if upload.persisted?
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u.import_mode = false
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u.create_user_avatar
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u.import_mode = true
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u.user_avatar.update(custom_upload_id: upload.id)
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u.update(uploaded_avatar_id: upload.id)
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else
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puts "Error: Upload did not persist for #{u.username} #{photo_real_filename}!"
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end
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end
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end
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end
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def find_photo_file(path, base_filename)
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base_guess = base_filename.dup
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full_guess = File.join(path, base_guess) # often an exact match exists
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return full_guess if File.exists?(full_guess)
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# Otherwise, the file exists but with a prefix:
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# The p prefix seems to be the full file, so try to find that one first.
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['p', 't', 'n'].each do |prefix|
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full_guess = File.join(path, "#{prefix}#{base_guess}")
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return full_guess if File.exists?(full_guess)
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end
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# Didn't find it.
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nil
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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 CategoryID, Name, Description
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FROM #{TABLE_PREFIX}Category
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ORDER BY CategoryID 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['CategoryID'],
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name: CGI.unescapeHTML(category['Name']),
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description: CGI.unescapeHTML(category['Description'])
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}
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end
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end
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def import_topics
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puts "", "importing topics..."
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tag_names_sql = "select t.name as tag_name from GDN_Tag t, GDN_TagDiscussion td where t.tagid = td.tagid and td.discussionid = {discussionid} and t.name != '';"
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total_count = mysql_query("SELECT count(*) count FROM #{TABLE_PREFIX}Discussion;").first['count']
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@last_topic_id = -1
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batches(BATCH_SIZE) do |offset|
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discussions = mysql_query(
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"SELECT DiscussionID, CategoryID, Name, Body,
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DateInserted, InsertUserID
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WHERE DiscussionID > #{@last_topic_id}
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FROM #{TABLE_PREFIX}Discussion
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ORDER BY DiscussionID ASC
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LIMIT #{BATCH_SIZE};")
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break if discussions.size < 1
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@last_topic_id = discussions.to_a.last['DiscussionID']
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next if all_records_exist? :posts, discussions.map { |t| "discussion#" + t['DiscussionID'].to_s }
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create_posts(discussions, total: total_count, offset: offset) do |discussion|
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{
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id: "discussion#" + discussion['DiscussionID'].to_s,
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user_id: user_id_from_imported_user_id(discussion['InsertUserID']) || Discourse::SYSTEM_USER_ID,
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title: discussion['Name'],
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category: category_id_from_imported_category_id(discussion['CategoryID']),
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raw: clean_up(discussion['Body']),
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created_at: Time.zone.at(discussion['DateInserted']),
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post_create_action: proc do |post|
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if @import_tags
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tag_names = @client.query(tag_names_sql.gsub('{discussionid}', discussion['DiscussionID'].to_s)).map { |row| row['tag_name'] }
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DiscourseTagging.tag_topic_by_names(post.topic, staff_guardian, tag_names)
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end
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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_posts
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puts "", "importing posts..."
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total_count = mysql_query("SELECT count(*) count FROM #{TABLE_PREFIX}Comment;").first['count']
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@last_post_id = -1
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batches(BATCH_SIZE) do |offset|
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comments = mysql_query(
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"SELECT CommentID, DiscussionID, Body,
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DateInserted, InsertUserID
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WHERE CommentID > #{@last_post_id}
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FROM #{TABLE_PREFIX}Comment
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ORDER BY CommentID ASC
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LIMIT #{BATCH_SIZE};")
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break if comments.size < 1
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@last_post_id = comments.to_a.last['CommentID']
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next if all_records_exist? :posts, comments.map { |comment| "comment#" + comment['CommentID'].to_s }
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create_posts(comments, total: total_count, offset: offset) do |comment|
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next unless t = topic_lookup_from_imported_post_id("discussion#" + comment['DiscussionID'].to_s)
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next if comment['Body'].blank?
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{
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id: "comment#" + comment['CommentID'].to_s,
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user_id: user_id_from_imported_user_id(comment['InsertUserID']) || Discourse::SYSTEM_USER_ID,
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topic_id: t[:topic_id],
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raw: clean_up(comment['Body']),
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created_at: Time.zone.at(comment['DateInserted'])
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}
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end
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end
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end
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def clean_up(raw)
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return "" if raw.blank?
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# decode HTML entities
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raw = @htmlentities.decode(raw)
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# fix whitespaces
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raw = raw.gsub(/(\\r)?\\n/, "\n")
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.gsub("\\t", "\t")
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# [HTML]...[/HTML]
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raw = raw.gsub(/\[html\]/i, "\n```html\n")
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.gsub(/\[\/html\]/i, "\n```\n")
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# [PHP]...[/PHP]
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raw = raw.gsub(/\[php\]/i, "\n```php\n")
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.gsub(/\[\/php\]/i, "\n```\n")
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# [HIGHLIGHT="..."]
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raw = raw.gsub(/\[highlight="?(\w+)"?\]/i) { "\n```#{$1.downcase}\n" }
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# [CODE]...[/CODE]
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# [HIGHLIGHT]...[/HIGHLIGHT]
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raw = raw.gsub(/\[\/?code\]/i, "\n```\n")
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.gsub(/\[\/?highlight\]/i, "\n```\n")
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# [SAMP]...[/SAMP]
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raw.gsub!(/\[\/?samp\]/i, "`")
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unless CONVERT_HTML
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# replace all chevrons with HTML entities
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# NOTE: must be done
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# - AFTER all the "code" processing
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# - BEFORE the "quote" processing
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raw = raw.gsub(/`([^`]+)`/im) { "`" + $1.gsub("<", "\u2603") + "`" }
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.gsub("<", "<")
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.gsub("\u2603", "<")
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raw = raw.gsub(/`([^`]+)`/im) { "`" + $1.gsub(">", "\u2603") + "`" }
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.gsub(">", ">")
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.gsub("\u2603", ">")
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end
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# [URL=...]...[/URL]
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raw.gsub!(/\[url="?(.+?)"?\](.+)\[\/url\]/i) { "[#{$2}](#{$1})" }
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# [IMG]...[/IMG]
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raw.gsub!(/\[\/?img\]/i, "")
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# [URL]...[/URL]
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# [MP3]...[/MP3]
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raw = raw.gsub(/\[\/?url\]/i, "")
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.gsub(/\[\/?mp3\]/i, "")
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# [QUOTE]...[/QUOTE]
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raw.gsub!(/\[quote\](.+?)\[\/quote\]/im) { "\n> #{$1}\n" }
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# [YOUTUBE]<id>[/YOUTUBE]
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raw.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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raw.gsub!(/\[youtube="?(.+?)"?\](.+)\[\/youtube\]/i) { "\nhttps://www.youtube.com/watch?v=#{$2}\n" }
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# [MEDIA=youtube]id[/MEDIA]
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raw.gsub!(/\[MEDIA=youtube\](.+?)\[\/MEDIA\]/i) { "\nhttps://www.youtube.com/watch?v=#{$1}\n" }
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# [VIDEO=youtube;<id>]...[/VIDEO]
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raw.gsub!(/\[video=youtube;([^\]]+)\].*?\[\/video\]/i) { "\nhttps://www.youtube.com/watch?v=#{$1}\n" }
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# Convert image bbcode
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raw.gsub!(/\[img=(\d+),(\d+)\]([^\]]*)\[\/img\]/i, '<img width="\1" height="\2" src="\3">')
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# Remove the color tag
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raw.gsub!(/\[color=[#a-z0-9]+\]/i, "")
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raw.gsub!(/\[\/color\]/i, "")
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# remove attachments
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raw.gsub!(/\[attach[^\]]*\]\d+\[\/attach\]/i, "")
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# sanitize img tags
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# This regexp removes everything between the first and last img tag. The .* is too much.
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# If it's needed, it needs to be fixed.
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# raw.gsub!(/\<img.*src\="([^\"]+)\".*\>/i) {"\n<img src='#{$1}'>\n"}
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raw
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end
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def staff_guardian
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@_staff_guardian ||= Guardian.new(Discourse.system_user)
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end
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def mysql_query(sql)
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@client.query(sql)
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# @client.query(sql, cache_rows: false) #segfault: cache_rows: false causes segmentation fault
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end
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def create_permalinks
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puts '', 'Creating redirects...', ''
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User.find_each do |u|
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ucf = u.custom_fields
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if ucf && ucf["import_id"] && ucf["import_username"]
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Permalink.create(url: "profile/#{ucf['import_id']}/#{ucf['import_username']}", external_url: "/users/#{u.username}") rescue nil
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print '.'
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end
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end
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Post.find_each do |post|
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pcf = post.custom_fields
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if pcf && pcf["import_id"]
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topic = post.topic
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id = pcf["import_id"].split('#').last
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if post.post_number == 1
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slug = Slug.for(topic.title) # probably matches what vanilla would do...
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Permalink.create(url: "discussion/#{id}/#{slug}", topic_id: topic.id) rescue nil
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else
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Permalink.create(url: "discussion/comment/#{id}", post_id: post.id) rescue nil
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end
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print '.'
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end
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end
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end
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end
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ImportScripts::VanillaSQL.new.perform
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