discourse/script/import_scripts/vbulletin5.rb

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# frozen_string_literal: true
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require 'mysql2'
require File.expand_path(File.dirname(__FILE__) + "/base.rb")
require 'htmlentities'
class ImportScripts::VBulletin < ImportScripts::Base
BATCH_SIZE = 1000
DBPREFIX = "vb_"
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ROOT_NODE = 2
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# CHANGE THESE BEFORE RUNNING THE IMPORTER
DATABASE = "yourforum"
TIMEZONE = "America/Los_Angeles"
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ATTACHMENT_DIR = '/home/discourse/yourforum/customattachments/'
AVATAR_DIR = '/home/discourse/yourforum/avatars/'
def initialize
super
@old_username_to_new_usernames = {}
@tz = TZInfo::Timezone.get(TIMEZONE)
@htmlentities = HTMLEntities.new
@client = Mysql2::Client.new(
host: "localhost",
username: "root",
database: DATABASE,
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password: "password"
)
end
def execute
import_groups
import_users
import_categories
import_topics
import_posts
import_attachments
close_topics
post_process_posts
end
def import_groups
puts "", "importing groups..."
groups = mysql_query <<-SQL
SELECT usergroupid, title
FROM #{DBPREFIX}usergroup
ORDER BY usergroupid
SQL
create_groups(groups) do |group|
{
id: group["usergroupid"],
name: @htmlentities.decode(group["title"]).strip
}
end
end
def import_users
puts "", "importing users"
user_count = mysql_query("SELECT COUNT(userid) count FROM #{DBPREFIX}user").first["count"]
batches(BATCH_SIZE) do |offset|
users = mysql_query <<-SQL
SELECT u.userid, u.username, u.homepage, u.usertitle, u.usergroupid, u.joindate, u.email,
CASE WHEN u.scheme='blowfish:10' THEN token
WHEN u.scheme='legacy' THEN REPLACE(token, ' ', ':')
END AS password,
IF(ug.title = 'Administrators', 1, 0) AS admin
FROM #{DBPREFIX}user u
LEFT JOIN #{DBPREFIX}usergroup ug ON ug.usergroupid = u.usergroupid
ORDER BY userid
LIMIT #{BATCH_SIZE}
OFFSET #{offset}
SQL
break if users.size < 1
# disabled line below, caused issues
# next if all_records_exist? :users, users.map {|u| u["userid"].to_i}
create_users(users, total: user_count, offset: offset) do |user|
username = @htmlentities.decode(user["username"]).strip
{
id: user["userid"],
name: username,
username: username,
email: user["email"].presence || fake_email,
admin: user['admin'] == 1,
password: user["password"],
website: user["homepage"].strip,
title: @htmlentities.decode(user["usertitle"]).strip,
primary_group_id: group_id_from_imported_group_id(user["usergroupid"]),
created_at: parse_timestamp(user["joindate"]),
post_create_action: proc do |u|
@old_username_to_new_usernames[user["username"]] = u.username
import_profile_picture(user, u)
import_profile_background(user, u)
end
}
end
end
end
def import_profile_picture(old_user, imported_user)
query = mysql_query <<-SQL
SELECT filedata, filename
FROM #{DBPREFIX}customavatar
WHERE userid = #{old_user["userid"]}
ORDER BY dateline DESC
LIMIT 1
SQL
picture = query.first
return if picture.nil?
if picture['filedata']
file = Tempfile.new("profile-picture")
file.write(picture["filedata"].encode("ASCII-8BIT").force_encoding("UTF-8"))
file.rewind
upload = UploadCreator.new(file, picture["filename"]).create_for(imported_user.id)
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else
filename = File.join(AVATAR_DIR, picture['filename'])
unless File.exists?(filename)
puts "Avatar file doesn't exist: #{filename}"
return nil
end
upload = create_upload(imported_user.id, filename, picture['filename'])
end
return if !upload.persisted?
imported_user.create_user_avatar
imported_user.user_avatar.update(custom_upload_id: upload.id)
imported_user.update(uploaded_avatar_id: upload.id)
ensure
file.close rescue nil
file.unlind rescue nil
end
def import_profile_background(old_user, imported_user)
query = mysql_query <<-SQL
SELECT filedata, filename
FROM #{DBPREFIX}customprofilepic
WHERE userid = #{old_user["userid"]}
ORDER BY dateline DESC
LIMIT 1
SQL
background = query.first
return if background.nil?
file = Tempfile.new("profile-background")
file.write(background["filedata"].encode("ASCII-8BIT").force_encoding("UTF-8"))
file.rewind
upload = UploadCreator.new(file, background["filename"]).create_for(imported_user.id)
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return if !upload.persisted?
imported_user.user_profile.upload_profile_background(upload)
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ensure
file.close rescue nil
file.unlink rescue nil
end
def import_categories
puts "", "importing top level categories..."
categories = mysql_query("SELECT nodeid AS forumid, title, description, displayorder, parentid
FROM #{DBPREFIX}node
WHERE parentid=#{ROOT_NODE}
UNION
SELECT nodeid, title, description, displayorder, parentid
FROM #{DBPREFIX}node
WHERE contenttypeid = 23
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AND parentid IN (SELECT nodeid FROM #{DBPREFIX}node WHERE parentid=#{ROOT_NODE})").to_a
top_level_categories = categories.select { |c| c["parentid"] == ROOT_NODE }
create_categories(top_level_categories) do |category|
{
id: category["forumid"],
name: @htmlentities.decode(category["title"]).strip,
position: category["displayorder"],
description: @htmlentities.decode(category["description"]).strip
}
end
puts "", "importing child categories..."
children_categories = categories.select { |c| c["parentid"] != ROOT_NODE }
top_level_category_ids = Set.new(top_level_categories.map { |c| c["forumid"] })
# cut down the tree to only 2 levels of categories
children_categories.each do |cc|
while !top_level_category_ids.include?(cc["parentid"])
cc["parentid"] = categories.detect { |c| c["forumid"] == cc["parentid"] }["parentid"]
end
end
create_categories(children_categories) do |category|
{
id: category["forumid"],
name: @htmlentities.decode(category["title"]).strip,
position: category["displayorder"],
description: @htmlentities.decode(category["description"]).strip,
parent_category_id: category_id_from_imported_category_id(category["parentid"])
}
end
end
def import_topics
puts "", "importing topics..."
# keep track of closed topics
@closed_topic_ids = []
topic_count = mysql_query("select count(nodeid) cnt from #{DBPREFIX}node where parentid in (
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select nodeid from #{DBPREFIX}node where contenttypeid=23 ) and contenttypeid=22;").first["cnt"]
batches(BATCH_SIZE) do |offset|
topics = mysql_query <<-SQL
SELECT t.nodeid AS threadid, t.title, t.parentid AS forumid,t.open,t.userid AS postuserid,t.publishdate AS dateline,
nv.count views, 1 AS visible, t.sticky,
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CONVERT(CAST(rawtext AS BINARY)USING utf8) AS raw
FROM #{DBPREFIX}node t
LEFT JOIN #{DBPREFIX}nodeview nv ON nv.nodeid=t.nodeid
LEFT JOIN #{DBPREFIX}text txt ON txt.nodeid=t.nodeid
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WHERE t.parentid in ( select nodeid from #{DBPREFIX}node where contenttypeid=23 )
AND t.contenttypeid = 22
ORDER BY t.nodeid
LIMIT #{BATCH_SIZE}
OFFSET #{offset}
SQL
break if topics.size < 1
# disabled line below, caused issues
# next if all_records_exist? :posts, topics.map {|t| "thread-#{topic["threadid"]}" }
create_posts(topics, total: topic_count, offset: offset) do |topic|
raw = preprocess_post_raw(topic["raw"]) rescue nil
next if raw.blank?
topic_id = "thread-#{topic["threadid"]}"
@closed_topic_ids << topic_id if topic["open"] == "0"
t = {
id: topic_id,
user_id: user_id_from_imported_user_id(topic["postuserid"]) || Discourse::SYSTEM_USER_ID,
title: @htmlentities.decode(topic["title"]).strip[0...255],
category: category_id_from_imported_category_id(topic["forumid"]),
raw: raw,
created_at: parse_timestamp(topic["dateline"]),
visible: topic["visible"].to_i == 1,
views: topic["views"],
}
t[:pinned_at] = t[:created_at] if topic["sticky"].to_i == 1
t
end
end
end
def import_posts
puts "", "importing posts..."
# make sure `firstpostid` is indexed
begin
mysql_query("CREATE INDEX firstpostid_index ON thread (firstpostid)")
rescue
end
post_count = mysql_query("SELECT COUNT(nodeid) cnt FROM #{DBPREFIX}node WHERE parentid NOT IN (
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SELECT nodeid FROM #{DBPREFIX}node WHERE contenttypeid=23 ) AND contenttypeid=22;").first["cnt"]
batches(BATCH_SIZE) do |offset|
posts = mysql_query <<-SQL
SELECT p.nodeid AS postid, p.userid AS userid, p.parentid AS threadid,
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CONVERT(CAST(rawtext AS BINARY)USING utf8) AS raw, p.publishdate AS dateline,
1 AS visible, p.parentid AS parentid
FROM #{DBPREFIX}node p
LEFT JOIN #{DBPREFIX}nodeview nv ON nv.nodeid=p.nodeid
LEFT JOIN #{DBPREFIX}text txt ON txt.nodeid=p.nodeid
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WHERE p.parentid NOT IN ( select nodeid from #{DBPREFIX}node where contenttypeid=23 )
AND p.contenttypeid = 22
ORDER BY postid
LIMIT #{BATCH_SIZE}
OFFSET #{offset}
SQL
break if posts.size < 1
# disabled line below, caused issues
# next if all_records_exist? :posts, posts.map {|p| p["postid"] }
create_posts(posts, total: post_count, offset: offset) do |post|
raw = preprocess_post_raw(post["raw"])
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next if raw.blank?
next unless topic = topic_lookup_from_imported_post_id("thread-#{post["threadid"]}")
p = {
id: post["postid"],
user_id: user_id_from_imported_user_id(post["userid"]) || Discourse::SYSTEM_USER_ID,
topic_id: topic[:topic_id],
raw: raw,
created_at: parse_timestamp(post["dateline"]),
hidden: post["visible"].to_i == 0,
}
if parent = topic_lookup_from_imported_post_id(post["parentid"])
p[:reply_to_post_number] = parent[:post_number]
end
p
end
end
end
# find the uploaded file information from the db
def find_upload(post, attachment_id)
sql = "SELECT a.filedataid, a.filename, fd.userid, LENGTH(fd.filedata) AS dbsize, filedata
FROM #{DBPREFIX}attach a
LEFT JOIN #{DBPREFIX}filedata fd ON fd.filedataid = a.filedataid
WHERE a.nodeid = #{attachment_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(ATTACHMENT_DIR, row['userid'].to_s.split('').join('/'), "#{row['filedataid']}.attach")
real_filename = row['filename']
real_filename.prepend SecureRandom.hex if real_filename[0] == '.'
unless File.exists?(filename)
if row['dbsize'].to_i == 0
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puts "Attachment file #{row['filedataid']} doesn't exist"
return nil
end
tmpfile = 'attach_' + row['filedataid'].to_s
filename = File.join('/tmp/', tmpfile)
File.open(filename, 'wb') { |f|
#f.write(PG::Connection.unescape_bytea(row['filedata']))
f.write(row['filedata'])
}
end
upload = create_upload(post.user.id, filename, real_filename)
if upload.nil? || !upload.valid?
puts "Upload not valid :("
puts upload.errors.inspect if upload
return nil
end
[upload, real_filename]
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rescue Mysql2::Error => e
puts "SQL Error"
puts e.message
puts sql
nil
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end
def import_attachments
puts '', 'importing attachments...'
current_count = 0
total_count = mysql_query("SELECT COUNT(nodeid) cnt FROM #{DBPREFIX}node WHERE contenttypeid=22 ").first["cnt"]
success_count = 0
fail_count = 0
attachment_regex = /\[attach[^\]]*\]n(\d+)\[\/attach\]/i
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(post, attachment_id)
unless upload
fail_count += 1
next
end
html_for_upload(upload, filename)
end
if new_raw != post.raw
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PostRevisor.new(post).revise!(post.user, { raw: new_raw }, bypass_bump: true, edit_reason: 'Import attachments from vBulletin')
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end
success_count += 1
end
end
def close_topics
puts "", "Closing topics..."
sql = <<-SQL
WITH closed_topic_ids AS (
SELECT t.id AS topic_id
FROM post_custom_fields pcf
JOIN posts p ON p.id = pcf.post_id
JOIN topics t ON t.id = p.topic_id
WHERE pcf.name = 'import_id'
AND pcf.value IN (?)
)
UPDATE topics
SET closed = true
WHERE id IN (SELECT topic_id FROM closed_topic_ids)
SQL
DB.exec(sql, @closed_topic_ids)
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end
def post_process_posts
puts "", "Postprocessing posts..."
current = 0
max = Post.count
Post.find_each do |post|
begin
new_raw = postprocess_post_raw(post.raw)
if new_raw != post.raw
post.raw = new_raw
post.save
end
rescue PrettyText::JavaScriptError
nil
ensure
print_status(current += 1, max)
end
end
end
def preprocess_post_raw(raw)
return "" if raw.blank?
# decode HTML entities
raw = @htmlentities.decode(raw)
# fix whitespaces
raw = raw.gsub(/(\\r)?\\n/, "\n")
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.gsub("\\t", "\t")
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# [HTML]...[/HTML]
raw = raw.gsub(/\[html\]/i, "\n```html\n")
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.gsub(/\[\/html\]/i, "\n```\n")
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# [PHP]...[/PHP]
raw = raw.gsub(/\[php\]/i, "\n```php\n")
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.gsub(/\[\/php\]/i, "\n```\n")
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# [HIGHLIGHT="..."]
raw = raw.gsub(/\[highlight="?(\w+)"?\]/i) { "\n```#{$1.downcase}\n" }
# [CODE]...[/CODE]
# [HIGHLIGHT]...[/HIGHLIGHT]
raw = raw.gsub(/\[\/?code\]/i, "\n```\n")
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.gsub(/\[\/?highlight\]/i, "\n```\n")
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# [SAMP]...[/SAMP]
raw = 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") + "`" }
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.gsub("<", "&lt;")
.gsub("\u2603", "<")
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raw = raw.gsub(/`([^`]+)`/im) { "`" + $1.gsub(">", "\u2603") + "`" }
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.gsub(">", "&gt;")
.gsub("\u2603", ">")
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# [URL=...]...[/URL]
raw.gsub!(/\[url="?(.+?)"?\](.+?)\[\/url\]/i) { "<a href=\"#{$1}\">#{$2}</a>" }
# [URL]...[/URL]
# [MP3]...[/MP3]
raw = raw.gsub(/\[\/?url\]/i, "")
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.gsub(/\[\/?mp3\]/i, "")
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# [MENTION]<username>[/MENTION]
raw = raw.gsub(/\[mention\](.+?)\[\/mention\]/i) do
old_username = $1
if @old_username_to_new_usernames.has_key?(old_username)
old_username = @old_username_to_new_usernames[old_username]
end
"@#{old_username}"
end
# [USER=<user_id>]<username>[/USER]
raw = raw.gsub(/\[user="?(\d+)"?\](.+?)\[\/user\]/i) do
user_id, old_username = $1, $2
if @old_username_to_new_usernames.has_key?(old_username)
new_username = @old_username_to_new_usernames[old_username]
else
new_username = old_username
end
"@#{new_username}"
end
# [FONT=blah] and [COLOR=blah]
# no idea why the /i is not matching case insensitive..
raw.gsub! /\[color=.*?\](.*?)\[\/color\]/im, '\1'
raw.gsub! /\[COLOR=.*?\](.*?)\[\/COLOR\]/im, '\1'
raw.gsub! /\[font=.*?\](.*?)\[\/font\]/im, '\1'
raw.gsub! /\[FONT=.*?\](.*?)\[\/FONT\]/im, '\1'
# [CENTER]...[/CENTER]
raw.gsub! /\[CENTER\](.*?)\[\/CENTER\]/im, '\1'
# fix LIST
raw.gsub! /\[LIST\](.*?)\[\/LIST\]/im, '<ul>\1</ul>'
raw.gsub! /\[\*\]/im, '<li>'
# [QUOTE]...[/QUOTE]
raw = raw.gsub(/\[quote\](.+?)\[\/quote\]/im) { "\n> #{$1}\n" }
# [QUOTE=<username>]...[/QUOTE]
raw = raw.gsub(/\[quote=([^;\]]+)\](.+?)\[\/quote\]/im) do
old_username, quote = $1, $2
if @old_username_to_new_usernames.has_key?(old_username)
old_username = @old_username_to_new_usernames[old_username]
end
"\n[quote=\"#{old_username}\"]\n#{quote}\n[/quote]\n"
end
# [YOUTUBE]<id>[/YOUTUBE]
raw = raw.gsub(/\[youtube\](.+?)\[\/youtube\]/i) { "\n//youtu.be/#{$1}\n" }
# [VIDEO=youtube;<id>]...[/VIDEO]
raw = raw.gsub(/\[video=youtube;([^\]]+)\].*?\[\/video\]/i) { "\n//youtu.be/#{$1}\n" }
raw
end
def postprocess_post_raw(raw)
# [QUOTE=<username>;<post_id>]...[/QUOTE]
raw = raw.gsub(/\[quote=([^;]+);n(\d+)\](.+?)\[\/quote\]/im) do
old_username, post_id, quote = $1, $2, $3
if @old_username_to_new_usernames.has_key?(old_username)
old_username = @old_username_to_new_usernames[old_username]
end
if topic_lookup = topic_lookup_from_imported_post_id(post_id)
post_number = topic_lookup[:post_number]
topic_id = topic_lookup[:topic_id]
"\n[quote=\"#{old_username},post:#{post_number},topic:#{topic_id}\"]\n#{quote}\n[/quote]\n"
else
"\n[quote=\"#{old_username}\"]\n#{quote}\n[/quote]\n"
end
end
# remove attachments
raw = raw.gsub(/\[attach[^\]]*\]\d+\[\/attach\]/i, "")
# [THREAD]<thread_id>[/THREAD]
# ==> http://my.discourse.org/t/slug/<topic_id>
raw = raw.gsub(/\[thread\](\d+)\[\/thread\]/i) do
thread_id = $1
if topic_lookup = topic_lookup_from_imported_post_id("thread-#{thread_id}")
topic_lookup[:url]
else
$&
end
end
# [THREAD=<thread_id>]...[/THREAD]
# ==> [...](http://my.discourse.org/t/slug/<topic_id>)
raw = raw.gsub(/\[thread=(\d+)\](.+?)\[\/thread\]/i) do
thread_id, link = $1, $2
if topic_lookup = topic_lookup_from_imported_post_id("thread-#{thread_id}")
url = topic_lookup[:url]
"[#{link}](#{url})"
else
$&
end
end
# [POST]<post_id>[/POST]
# ==> http://my.discourse.org/t/slug/<topic_id>/<post_number>
raw = raw.gsub(/\[post\](\d+)\[\/post\]/i) do
post_id = $1
if topic_lookup = topic_lookup_from_imported_post_id(post_id)
topic_lookup[:url]
else
$&
end
end
# [POST=<post_id>]...[/POST]
# ==> [...](http://my.discourse.org/t/<topic_slug>/<topic_id>/<post_number>)
raw = raw.gsub(/\[post=(\d+)\](.+?)\[\/post\]/i) do
post_id, link = $1, $2
if topic_lookup = topic_lookup_from_imported_post_id(post_id)
url = topic_lookup[:url]
"[#{link}](#{url})"
else
$&
end
end
raw
end
def parse_timestamp(timestamp)
Time.zone.at(@tz.utc_to_local(timestamp))
end
def mysql_query(sql)
@client.query(sql, cache_rows: false)
end
end
ImportScripts::VBulletin.new.perform