# frozen_string_literal: true require "mysql2" require File.expand_path(File.dirname(__FILE__) + "/base.rb") require 'htmlentities' class ImportScripts::VanillaSQL < ImportScripts::Base VANILLA_DB = "vanilla_mysql" TABLE_PREFIX = "GDN_" ATTACHMENTS_BASE_DIR = nil # "/absolute/path/to/attachments" set the absolute path if you have attachments BATCH_SIZE = 1000 CONVERT_HTML = true def initialize super @htmlentities = HTMLEntities.new @client = Mysql2::Client.new( host: "localhost", username: "root", password: "pa$$word", database: VANILLA_DB ) @import_tags = false begin r = @client.query("select count(*) count from #{TABLE_PREFIX}Tag where countdiscussions > 0") @import_tags = true if r.first["count"].to_i > 0 rescue => e puts "Tags won't be imported. #{e.message}" end end def execute if @import_tags SiteSetting.tagging_enabled = true SiteSetting.max_tags_per_topic = 10 end import_users import_avatars import_categories import_topics import_posts update_tl0 create_permalinks end def import_users puts '', "creating users" @user_is_deleted = false @last_deleted_username = nil username = nil @last_user_id = -1 total_count = mysql_query("SELECT count(*) count FROM #{TABLE_PREFIX}User;").first['count'] batches(BATCH_SIZE) do |offset| results = mysql_query( "SELECT UserID, Name, Title, Location, About, Email, DateInserted, DateLastActive, InsertIPAddress, Admin FROM #{TABLE_PREFIX}User WHERE UserID > #{@last_user_id} ORDER BY UserID ASC LIMIT #{BATCH_SIZE};") break if results.size < 1 @last_user_id = results.to_a.last['UserID'] next if all_records_exist? :users, results.map { |u| u['UserID'].to_i } create_users(results, total: total_count, offset: offset) do |user| next if user['Email'].blank? next if user['Name'].blank? next if @lookup.user_id_from_imported_user_id(user['UserID']) if user['Name'] == '[Deleted User]' # EVERY deleted user record in Vanilla has the same username: [Deleted User] # Save our UserNameSuggester some pain: @user_is_deleted = true username = @last_deleted_username || user['Name'] else @user_is_deleted = false username = user['Name'] end { id: user['UserID'], email: user['Email'], username: username, name: user['Name'], created_at: user['DateInserted'] == nil ? 0 : Time.zone.at(user['DateInserted']), bio_raw: user['About'], registration_ip_address: user['InsertIPAddress'], last_seen_at: user['DateLastActive'] == nil ? 0 : Time.zone.at(user['DateLastActive']), location: user['Location'], admin: user['Admin'] == 1, post_create_action: proc do |newuser| if @user_is_deleted @last_deleted_username = newuser.username end end } end end end def import_avatars if ATTACHMENTS_BASE_DIR && File.exists?(ATTACHMENTS_BASE_DIR) puts "", "importing user avatars" User.find_each do |u| next unless u.custom_fields["import_id"] r = mysql_query("SELECT photo FROM #{TABLE_PREFIX}User WHERE UserID = #{u.custom_fields['import_id']};").first next if r.nil? photo = r["photo"] next unless photo.present? # Possible encoded values: # 1. cf://uploads/userpics/820/Y0AFUQYYM6QN.jpg # 2. ~cf/userpics2/cf566487133f1f538e02da96f9a16b18.jpg # 3. ~cf/userpics/txkt8kw1wozn.jpg photo_real_filename = nil parts = photo.squeeze("/").split("/") if parts[0] == "cf:" photo_path = "#{ATTACHMENTS_BASE_DIR}/#{parts[2..-2].join('/')}".squeeze("/") elsif parts[0] == "~cf" photo_path = "#{ATTACHMENTS_BASE_DIR}/#{parts[1..-2].join('/')}".squeeze("/") else puts "UNKNOWN FORMAT: #{photo}" next end if !File.exists?(photo_path) puts "Path to avatar file not found! Skipping. #{photo_path}" next end photo_real_filename = find_photo_file(photo_path, parts.last) if photo_real_filename.nil? puts "Couldn't find file for #{photo}. Skipping." next end print "." upload = create_upload(u.id, photo_real_filename, File.basename(photo_real_filename)) if upload.persisted? u.import_mode = false u.create_user_avatar u.import_mode = true u.user_avatar.update(custom_upload_id: upload.id) u.update(uploaded_avatar_id: upload.id) else puts "Error: Upload did not persist for #{u.username} #{photo_real_filename}!" end end end end def find_photo_file(path, base_filename) base_guess = base_filename.dup full_guess = File.join(path, base_guess) # often an exact match exists return full_guess if File.exists?(full_guess) # Otherwise, the file exists but with a prefix: # The p prefix seems to be the full file, so try to find that one first. ['p', 't', 'n'].each do |prefix| full_guess = File.join(path, "#{prefix}#{base_guess}") return full_guess if File.exists?(full_guess) end # Didn't find it. nil end def import_categories puts "", "importing categories..." categories = mysql_query(" SELECT CategoryID, Name, Description FROM #{TABLE_PREFIX}Category ORDER BY CategoryID ASC ").to_a create_categories(categories) do |category| { id: category['CategoryID'], name: CGI.unescapeHTML(category['Name']), description: CGI.unescapeHTML(category['Description']) } end end def import_topics puts "", "importing topics..." 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 != '';" total_count = mysql_query("SELECT count(*) count FROM #{TABLE_PREFIX}Discussion;").first['count'] @last_topic_id = -1 batches(BATCH_SIZE) do |offset| discussions = mysql_query( "SELECT DiscussionID, CategoryID, Name, Body, DateInserted, InsertUserID FROM #{TABLE_PREFIX}Discussion WHERE DiscussionID > #{@last_topic_id} ORDER BY DiscussionID ASC LIMIT #{BATCH_SIZE};") break if discussions.size < 1 @last_topic_id = discussions.to_a.last['DiscussionID'] next if all_records_exist? :posts, discussions.map { |t| "discussion#" + t['DiscussionID'].to_s } create_posts(discussions, total: total_count, offset: offset) do |discussion| { id: "discussion#" + discussion['DiscussionID'].to_s, user_id: user_id_from_imported_user_id(discussion['InsertUserID']) || Discourse::SYSTEM_USER_ID, title: discussion['Name'], category: category_id_from_imported_category_id(discussion['CategoryID']), raw: clean_up(discussion['Body']), created_at: Time.zone.at(discussion['DateInserted']), post_create_action: proc do |post| if @import_tags tag_names = @client.query(tag_names_sql.gsub('{discussionid}', discussion['DiscussionID'].to_s)).map { |row| row['tag_name'] } DiscourseTagging.tag_topic_by_names(post.topic, staff_guardian, tag_names) end end } end end end def import_posts puts "", "importing posts..." total_count = mysql_query("SELECT count(*) count FROM #{TABLE_PREFIX}Comment;").first['count'] @last_post_id = -1 batches(BATCH_SIZE) do |offset| comments = mysql_query( "SELECT CommentID, DiscussionID, Body, DateInserted, InsertUserID FROM #{TABLE_PREFIX}Comment WHERE CommentID > #{@last_post_id} ORDER BY CommentID ASC LIMIT #{BATCH_SIZE};") break if comments.size < 1 @last_post_id = comments.to_a.last['CommentID'] next if all_records_exist? :posts, comments.map { |comment| "comment#" + comment['CommentID'].to_s } create_posts(comments, total: total_count, offset: offset) do |comment| next unless t = topic_lookup_from_imported_post_id("discussion#" + comment['DiscussionID'].to_s) next if comment['Body'].blank? { id: "comment#" + comment['CommentID'].to_s, user_id: user_id_from_imported_user_id(comment['InsertUserID']) || Discourse::SYSTEM_USER_ID, topic_id: t[:topic_id], raw: clean_up(comment['Body']), created_at: Time.zone.at(comment['DateInserted']) } end end end def clean_up(raw) return "" if raw.blank? # decode HTML entities raw = @htmlentities.decode(raw) # fix whitespaces raw = raw.gsub(/(\\r)?\\n/, "\n") .gsub("\\t", "\t") # [HTML]...[/HTML] raw = raw.gsub(/\[html\]/i, "\n```html\n") .gsub(/\[\/html\]/i, "\n```\n") # [PHP]...[/PHP] raw = raw.gsub(/\[php\]/i, "\n```php\n") .gsub(/\[\/php\]/i, "\n```\n") # [HIGHLIGHT="..."] raw = raw.gsub(/\[highlight="?(\w+)"?\]/i) { "\n```#{$1.downcase}\n" } # [CODE]...[/CODE] # [HIGHLIGHT]...[/HIGHLIGHT] raw = raw.gsub(/\[\/?code\]/i, "\n```\n") .gsub(/\[\/?highlight\]/i, "\n```\n") # [SAMP]...[/SAMP] raw.gsub!(/\[\/?samp\]/i, "`") unless CONVERT_HTML # replace all chevrons with HTML entities # NOTE: must be done # - AFTER all the "code" processing # - BEFORE the "quote" processing raw = raw.gsub(/`([^`]+)`/im) { "`" + $1.gsub("<", "\u2603") + "`" } .gsub("<", "<") .gsub("\u2603", "<") raw = raw.gsub(/`([^`]+)`/im) { "`" + $1.gsub(">", "\u2603") + "`" } .gsub(">", ">") .gsub("\u2603", ">") end # [URL=...]...[/URL] raw.gsub!(/\[url="?(.+?)"?\](.+)\[\/url\]/i) { "[#{$2}](#{$1})" } # [IMG]...[/IMG] raw.gsub!(/\[\/?img\]/i, "") # [URL]...[/URL] # [MP3]...[/MP3] raw = raw.gsub(/\[\/?url\]/i, "") .gsub(/\[\/?mp3\]/i, "") # [QUOTE]...[/QUOTE] raw.gsub!(/\[quote\](.+?)\[\/quote\]/im) { "\n> #{$1}\n" } # [YOUTUBE]<id>[/YOUTUBE] raw.gsub!(/\[youtube\](.+?)\[\/youtube\]/i) { "\nhttps://www.youtube.com/watch?v=#{$1}\n" } # [youtube=425,350]id[/youtube] raw.gsub!(/\[youtube="?(.+?)"?\](.+)\[\/youtube\]/i) { "\nhttps://www.youtube.com/watch?v=#{$2}\n" } # [MEDIA=youtube]id[/MEDIA] raw.gsub!(/\[MEDIA=youtube\](.+?)\[\/MEDIA\]/i) { "\nhttps://www.youtube.com/watch?v=#{$1}\n" } # [VIDEO=youtube;<id>]...[/VIDEO] raw.gsub!(/\[video=youtube;([^\]]+)\].*?\[\/video\]/i) { "\nhttps://www.youtube.com/watch?v=#{$1}\n" } # Convert image bbcode raw.gsub!(/\[img=(\d+),(\d+)\]([^\]]*)\[\/img\]/i, '<img width="\1" height="\2" src="\3">') # Remove the color tag raw.gsub!(/\[color=[#a-z0-9]+\]/i, "") raw.gsub!(/\[\/color\]/i, "") # remove attachments raw.gsub!(/\[attach[^\]]*\]\d+\[\/attach\]/i, "") # sanitize img tags # This regexp removes everything between the first and last img tag. The .* is too much. # If it's needed, it needs to be fixed. # raw.gsub!(/\<img.*src\="([^\"]+)\".*\>/i) {"\n<img src='#{$1}'>\n"} raw end def staff_guardian @_staff_guardian ||= Guardian.new(Discourse.system_user) end def mysql_query(sql) @client.query(sql) # @client.query(sql, cache_rows: false) #segfault: cache_rows: false causes segmentation fault end def create_permalinks puts '', 'Creating redirects...', '' User.find_each do |u| ucf = u.custom_fields if ucf && ucf["import_id"] && ucf["import_username"] Permalink.create(url: "profile/#{ucf['import_id']}/#{ucf['import_username']}", external_url: "/users/#{u.username}") rescue nil print '.' end end Post.find_each do |post| pcf = post.custom_fields if pcf && pcf["import_id"] topic = post.topic id = pcf["import_id"].split('#').last if post.post_number == 1 slug = Slug.for(topic.title) # probably matches what vanilla would do... Permalink.create(url: "discussion/#{id}/#{slug}", topic_id: topic.id) rescue nil else Permalink.create(url: "discussion/comment/#{id}", post_id: post.id) rescue nil end print '.' end end end end ImportScripts::VanillaSQL.new.perform