257 lines
7.8 KiB
Ruby
257 lines
7.8 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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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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end
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def execute
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import_users
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import_categories
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import_topics
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import_posts
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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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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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FROM #{TABLE_PREFIX}User
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ORDER BY UserID 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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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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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_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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total_count = mysql_query("SELECT count(*) count FROM #{TABLE_PREFIX}Discussion;").first['count']
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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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FROM #{TABLE_PREFIX}Discussion
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ORDER BY DiscussionID ASC
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LIMIT #{BATCH_SIZE}
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OFFSET #{offset};")
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break if discussions.size < 1
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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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}
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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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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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FROM #{TABLE_PREFIX}Comment
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ORDER BY CommentID ASC
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LIMIT #{BATCH_SIZE}
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OFFSET #{offset};")
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break if comments.size < 1
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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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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 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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end
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ImportScripts::VanillaSQL.new.perform
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