discourse/script/import_scripts/vanilla_mysql.rb

229 lines
6.8 KiB
Ruby

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_"
BATCH_SIZE = 1000
def initialize
super
@htmlentities = HTMLEntities.new
@client = Mysql2::Client.new(
host: "localhost",
username: "root",
password: "pa$$word",
database: VANILLA_DB
)
end
def execute
import_users
import_categories
import_topics
import_posts
end
def import_users
puts '', "creating users"
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
ORDER BY UserID ASC
LIMIT #{BATCH_SIZE}
OFFSET #{offset};")
break if results.size < 1
create_users(results, total: total_count, offset: offset) do |user|
next if user['Email'].blank?
next if user['Name'].blank?
{ id: user['UserID'],
email: user['Email'],
username: user['Name'],
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 }
end
end
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..."
total_count = mysql_query("SELECT count(*) count FROM #{TABLE_PREFIX}Discussion;").first['count']
batches(BATCH_SIZE) do |offset|
discussions = mysql_query(
"SELECT DiscussionID, CategoryID, Name, Body,
DateInserted, InsertUserID
FROM #{TABLE_PREFIX}Discussion
ORDER BY DiscussionID ASC
LIMIT #{BATCH_SIZE}
OFFSET #{offset};")
break if discussions.size < 1
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'])
}
end
end
end
def import_posts
puts "", "importing posts..."
total_count = mysql_query("SELECT count(*) count FROM #{TABLE_PREFIX}Comment;").first['count']
batches(BATCH_SIZE) do |offset|
comments = mysql_query(
"SELECT CommentID, DiscussionID, Body,
DateInserted, InsertUserID
FROM #{TABLE_PREFIX}Comment
ORDER BY CommentID ASC
LIMIT #{BATCH_SIZE}
OFFSET #{offset};")
break if comments.size < 1
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, "`")
# 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("<", "&lt;")
.gsub("\u2603", "<")
raw = raw.gsub(/`([^`]+)`/im) { "`" + $1.gsub(">", "\u2603") + "`" }
.gsub(">", "&gt;")
.gsub("\u2603", ">")
# [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
raw.gsub!(/\<img.*src\="([^\"]+)\".*\>/i) {"\n<img src='#{$1}'>\n"}
raw
end
def mysql_query(sql)
@client.query(sql, cache_rows: false)
end
end
ImportScripts::VanillaSQL.new.perform