discourse-import_scripts/gossamer_forums.rb

1295 lines
49 KiB
Ruby

# gossamer threads migration-import code
# v0.30
require 'mysql2'
require 'open-uri'
require 'net/http'
require 'tempfile'
require 'sqlite3'
require 'digest'
require 'fileutils'
require 'csv'
require 'time'
require File.expand_path("../../../../config/environment", __FILE__)
require_relative '../base'
class GossamerForumsImporter < ImportScripts::Base
def initialize
super
begin
# Initialize MySQL client to connect to Gossamer Forums database
@mysql_client = Mysql2::Client.new(
host: "slowtwitch.northend.network",
username: "admin",
password: "yxnh93Ybbz2Nm8#mp28zCVv",
database: "slowtwitch"
)
rescue Mysql2::Error => e
puts "Error connecting to MySQL: #{e.message}"
exit 1
end
# # Create a mapping of old Gossamer user IDs to new Discourse user IDs
# @user_id_map = {}
initialize_sqlite_id_name_url_db
end
def initialize_sqlite_id_name_url_db
@db = SQLite3::Database.new 'id_name_url_map.db'
@db.execute <<-SQL
CREATE TABLE IF NOT EXISTS user_id_map (
old_user_id INTEGER PRIMARY KEY,
new_user_id INTEGER
);
SQL
@db.execute <<-SQL
CREATE TABLE IF NOT EXISTS category_id_map (
old_category_id INTEGER PRIMARY KEY,
new_category_id INTEGER
);
SQL
@db.execute <<-SQL
CREATE TABLE IF NOT EXISTS username_map (
id INTEGER PRIMARY KEY,
old_username TEXT,
new_username TEXT,
email TEXT,
real_name TEXT
);
SQL
# ONLY when we need to clear the url_map e.g. if reimporting topics-posts from scratch
# @db.execute <<-SQL
# DROP TABLE IF EXISTS url_map;
# SQL
@db.execute <<-SQL
CREATE TABLE IF NOT EXISTS url_map (
old_post_id INTEGER PRIMARY KEY,
new_url TEXT,
title TEXT
);
SQL
@db.execute <<-SQL
CREATE TABLE IF NOT EXISTS topic_last_post_time (
topic_id INTEGER PRIMARY KEY,
last_post_time INTEGER
);
SQL
@db.execute <<-SQL
CREATE TABLE IF NOT EXISTS topic_post_count (
topic_id INTEGER PRIMARY KEY,
post_count INTEGER DEFAULT 0
);
SQL
@db.execute <<-SQL
CREATE TABLE IF NOT EXISTS user_topic_count (
user_id INTEGER PRIMARY KEY,
topic_count INTEGER DEFAULT 0
);
SQL
@db.execute <<-SQL
CREATE TABLE IF NOT EXISTS user_post_count (
user_id INTEGER PRIMARY KEY,
post_count INTEGER DEFAULT 0
);
SQL
@db.execute <<-SQL
CREATE TABLE IF NOT EXISTS topic_last_post_user (
topic_id INTEGER PRIMARY KEY,
user_id INTEGER
);
SQL
@db.execute <<-SQL
CREATE TABLE IF NOT EXISTS topic_post_numbers (
topic_id INTEGER PRIMARY KEY,
post_number INTEGER DEFAULT 0
);
SQL
@db.execute <<-SQL
CREATE TABLE IF NOT EXISTS highest_processed_post_id (
id INTEGER PRIMARY KEY CHECK (id = 1),
post_id INTEGER
);
SQL
@db.execute <<-SQL
CREATE TABLE IF NOT EXISTS highest_processed_personal_id (
id INTEGER PRIMARY KEY CHECK (id = 1),
personal_id INTEGER
);
SQL
end
def insert_user_id_mapping(old_user_id, new_user_id)
@db.execute "INSERT OR REPLACE INTO user_id_map (old_user_id, new_user_id) VALUES (?, ?)", old_user_id, new_user_id
end
def fetch_user_id_mapping(old_user_id)
@db.get_first_value "SELECT new_user_id FROM user_id_map WHERE old_user_id = ?", old_user_id
end
def insert_category_id_mapping(old_category_id, new_category_id)
@db.execute "INSERT OR REPLACE INTO category_id_map (old_category_id, new_category_id) VALUES (?, ?)", old_category_id, new_category_id
end
def fetch_category_id_mapping(old_category_id)
@db.get_first_value "SELECT new_category_id FROM category_id_map WHERE old_category_id = ?", old_category_id
end
def insert_username_mapping(old_username, new_username, email, real_name)
@db.execute "INSERT INTO username_map (old_username, new_username, email, real_name) VALUES (?, ?, ?, ?)", old_username, new_username, email, real_name
end
# Define a method to export the username mapping table to a CSV file
def export_username_mapping_to_csv(filename)
CSV.open(filename, 'w') do |csv|
# Add headers
csv << ['Old Username', 'New Username', 'Email', 'Full Name']
# Fetch data from the database
@db.execute("SELECT old_username, new_username, email, real_name FROM username_map") do |row|
csv << row
end
end
puts "Exported changed username mappings to #{filename}"
end
# Insert a URL mapping into the SQLite database
def insert_url_mapping(old_post_id, new_url, title)
@db.execute "INSERT INTO url_map (old_post_id, new_url, title) VALUES (?, ?, ?)", [old_post_id, new_url, title]
end
# Export the URL mappings to a CSV file
def export_url_mapping_to_csv(filename)
CSV.open(filename, "w") do |csv|
# Add headers
csv << ["Old Post ID", "New URL", "Title"]
@db.execute("SELECT old_post_id, new_url, title FROM url_map") do |row|
csv << row
end
end
puts "Exported URL mappings to #{filename}"
end
# Method to create Nginx rewrite rules file
def create_nginx_rewrite_rules(filename)
File.open(filename, "w") do |file|
@db.execute("SELECT old_post_id, new_url FROM url_map") do |row|
old_post_id, new_url = row
file.puts "rewrite ^/forum/.*P#{old_post_id}/$ #{new_url} permanent;"
end
end
end
# Fetch the highest old_post_id from the url_map table
def fetch_highest_old_post_id
@db.get_first_value "SELECT MAX(old_post_id) FROM url_map"
end
# Helper methods to interact with the SQLite database for persisting topic-post related values
def fetch_db(table, key)
@db.get_first_value "SELECT value FROM #{table} WHERE key = ?", key
end
def update_db(table, key, value)
@db.execute "INSERT OR REPLACE INTO #{table} (key, value) VALUES (?, ?)", key, value
end
def fetch_db_topic_last_post_time(topic_id)
@db.get_first_value "SELECT last_post_time FROM topic_last_post_time WHERE topic_id = ?", topic_id
end
def fetch_db_topic_last_post_user(topic_id)
@db.get_first_value "SELECT user_id FROM topic_last_post_user WHERE topic_id = ?", topic_id
end
def fetch_db_topic_post_count(topic_id)
@db.get_first_value "SELECT post_count FROM topic_post_count WHERE topic_id = ?", topic_id
end
def fetch_db_user_topic_count(user_id)
@db.get_first_value "SELECT topic_count FROM user_topic_count WHERE user_id = ?", user_id
end
def fetch_db_user_post_count(user_id)
@db.get_first_value "SELECT post_count FROM user_post_count WHERE user_id = ?", user_id
end
def fetch_db_topic_post_numbers(topic_id)
@db.get_first_value "SELECT post_number FROM topic_post_numbers WHERE topic_id = ?", topic_id
end
def update_db_topic_last_post_time(topic_id, last_post_time)
@db.execute "INSERT OR REPLACE INTO topic_last_post_time (topic_id, last_post_time) VALUES (?, ?)", topic_id, last_post_time
end
def update_db_topic_last_post_user(topic_id, user_id)
@db.execute "INSERT OR REPLACE INTO topic_last_post_user (topic_id, user_id) VALUES (?, ?)", topic_id, user_id
end
def update_db_topic_post_count(topic_id, post_count)
@db.execute "INSERT OR REPLACE INTO topic_post_count (topic_id, post_count) VALUES (?, ?)", topic_id, post_count
end
def update_db_user_topic_count(user_id, topic_count)
@db.execute "INSERT OR REPLACE INTO user_topic_count (user_id, topic_count) VALUES (?, ?)", user_id, topic_count
end
def update_db_user_post_count(user_id, post_count)
@db.execute "INSERT OR REPLACE INTO user_post_count (user_id, post_count) VALUES (?, ?)", user_id, post_count
end
def update_db_topic_post_numbers(topic_id, post_number)
@db.execute "INSERT OR REPLACE INTO topic_post_numbers (topic_id, post_number) VALUES (?, ?)", topic_id, post_number
end
# Fetch the highest processed post_id from the highest_processed_post_id table
def fetch_highest_processed_post_id
@db.get_first_value "SELECT post_id FROM highest_processed_post_id WHERE id = 1"
end
# Update the highest processed post_id in the highest_processed_post_id table
def update_highest_processed_post_id(post_id)
@db.execute "INSERT OR REPLACE INTO highest_processed_post_id (id, post_id) VALUES (1, ?)", post_id
end
# Fetch the highest processed personal_id from the highest_processed_personal_id table
def fetch_highest_processed_personal_id
@db.get_first_value "SELECT personal_id FROM highest_processed_personal_id WHERE id = 1"
end
# Update the highest processed personal_id in the highest_processed_personal_id table
def update_highest_processed_personal_id(personal_id)
@db.execute "INSERT OR REPLACE INTO highest_processed_personal_id (id, personal_id) VALUES (1, ?)", personal_id
end
# Execute an SQL query on the Gossamer Forums database
def execute_query(query)
@mysql_client.query(query, as: :hash)
end
# Sanitize the username to meet Discourse's requirements
def sanitize_username(original_username, email, real_name)
# original_username = username
sanitized_username = original_username.gsub(/[^a-zA-Z0-9._-]/, '_')
sanitized_username = "#{sanitized_username}." if sanitized_username.length < 2 # Allow two-character usernames
sanitized_username = sanitized_username[0, 20] if sanitized_username.length > 20
firststep_sanitized = sanitized_username
existing_user = User.find_by(username: sanitized_username)
if existing_user
if existing_user.email.downcase == email.downcase && existing_user.name == real_name
# The existing user with the username the same as the current proposed sanitised name _is_ the same person...
return sanitized_username
else
# We cannot clobber another person with the same proposed username, so we resolve the conflict
counter = 1
while User.exists?(username: sanitized_username)
sanitized_username = "#{firststep_sanitized}_#{counter}"
sanitized_username = sanitized_username[0, 20] if sanitized_username.length > 20
counter += 1
end
end
end
if original_username != sanitized_username
# The Discourse username is not the same as the Gossamer Forums username
puts "Sanitized username: '#{original_username}' --> '#{sanitized_username}'"
insert_username_mapping(original_username, sanitized_username, email, real_name)
# else
# puts "UNsanitized username: '#{original_username}' --> '#{sanitized_username}'"
end
sanitized_username
end
# Sanitize email to replace restricted domains
def sanitize_email(email)
restricted_domains = ['mailinator.com', 'example.com'] # Add more restricted domains as needed
domain = email.split('@').last
if restricted_domains.include?(domain)
sanitized_email = email.gsub(domain, 'example.org') # Change to a permissible domain
puts "Sanitized email: '#{email}' --> '#{sanitized_email}'"
return sanitized_email
end
email
end
def generate_unique_title(base_title, user_id, timestamp)
unique_title = base_title
suffix = 1
puts "Generating unique title for base title: #{base_title}"
while Topic.find_by(title: unique_title)
# while Topic.where(title: unique_title).exists?
# while Topic.exists?(title: unique_title)
puts "Title '#{unique_title}' already exists, generating a new one."
unique_title = "#{base_title} (#{suffix})"
puts "NEW unique_title #{unique_title}"
suffix += 1
end
puts "Final unique title: #{unique_title}"
unique_title
end
# Helper method to download an attachment / image from a URL
def download_attachment(url)
begin
puts "URL: '#{url}'"
URI.open(url, ssl_verify_mode: OpenSSL::SSL::VERIFY_NONE).read
rescue OpenURI::HTTPError => e
puts "Failed to download attachment from #{url}: #{e.message}"
nil
rescue URI::InvalidURIError => e
puts "Failed to handle invalid URL/URI for #{url}: #{e.message}"
nil
end
end
# Helper method to upload an attachment / image to Discourse
def upload_attachment(user_id, file, filename, gossamer_url)
begin
# BAD
# upload = Upload.create!(
# user_id: user_id,
# original_filename: filename,
# filesize: file.size,
# # filesize: File.size(file.path),
# # content_type: `file --brief --mime-type #{file.path}`.strip,
# # sha1: Digest::SHA1.file(file.path).hexdigest,
# # origin: 'user_avatar',
# # retain_hours: nil,
# url: gossamer_url
# )
# # Error -- non-existent method upload.ensure_consistency!
# Use the correct content type and SHA1 hash for the upload
# content_type = `file --brief --mime-type #{file.path}`.strip
# Generate SHA1 hash for the file
sha1 = Digest::SHA1.file(file.path).hexdigest
# upload = Upload.create!(
upload = Upload.new(
user_id: user_id,
original_filename: filename,
filesize: file.size,
sha1: sha1,
url: gossamer_url
# content_type: content_type,
# origin: 'composer',
# retain_hours: nil
)
# Use FileStore::LocalStore to store the file
store = FileStore::LocalStore.new
upload.url = store.store_file(file, store.get_path_for('original', upload.id, upload.sha1, File.extname(file.path)))
# # Use Discourse's internal method to upload the file
# file.rewind
# Discourse.store.upload(file, upload.sha1)
# # Move the file to the correct location
# upload_path = Upload.get_path_for_file(upload.sha1)
# FileUtils.mkdir_p(File.dirname(upload_path))
# FileUtils.mv(file.path, upload.path)
# Save the upload object
upload.save!
upload
rescue => e
puts "Failed to upload attachment #{filename} for user_id #{user_id}: #{e.message}"
nil
end
end
# Helper method to upload an attachment / image to Discourse
def upload_attachment_two(user_id, file, filename)
begin
upload = UploadCreator.new(file, filename, origin: 'import').create_for(user_id)
raise "Upload failed" unless upload
upload
rescue => e
puts "Failed to upload attachment #{filename} for user_id #{user_id}: #{e.message}"
nil
end
end
# Helper method to handle post attachments
def handle_post_attachments(gossamer_post_id, post, user_id)
execute_query("SELECT * FROM gforum_PostAttachment WHERE post_id_fk = #{gossamer_post_id}").each do |att_row|
attachment_url = "https://forum.slowtwitch.com/forum/?do=post_attachment;postatt_id=#{att_row['postatt_id']}"
puts "Handling attachment: #{attachment_url}"
attachment_data = download_attachment(attachment_url)
next unless attachment_data
mime_type = att_row['postatt_content']
# Create a Tempfile to pass to the UploadCreator
temp_file = Tempfile.new(['attachment', File.extname(att_row['postatt_filename'])])
temp_file.binmode
temp_file.write(attachment_data)
temp_file.rewind
puts "Attempting upload..."
upload = upload_attachment_two(user_id, temp_file, att_row['postatt_filename'])
next unless upload
# Get the URL of the uploaded file from Discourse
# upload_url = Upload.get_from_url(upload.url).url
upload_url = upload.url
puts "Appending to post.raw... #{upload_url} MIME type: #{mime_type}"
if mime_type.start_with?('image/')
post.raw += "\n![#{att_row['postatt_filename']}](#{upload_url})"
else
post.raw += "\n[#{att_row['postatt_filename']}](#{upload_url})"
end
post.save!
temp_file.close
temp_file.unlink
end
end
# def download_file(url)
# require 'open-uri'
# begin
# file = Tempfile.new
# file.binmode
# file.write(URI.open(url).read)
# file.rewind
# file
# rescue => e
# puts "Failed to download file from #{url}: #{e.message}"
# nil
# end
# end
# Helper method to upload an image to Discourse
# def upload_image(user, image_data, filename)
# return if image_data.nil?
#
# upload = Upload.create_for(user.id, File.open(image_data.path), filename, 'image/jpeg')
# if upload.nil? || !upload.persisted?
# puts "Failed to upload image for user #{user.username}"
# return
# end
#
# upload
# end
# Add 'Former_User' account if not already present
def add_former_user
puts "Adding 'Former User' account if it does not exist..."
former_user = User.find_by(username: 'Former_User')
if former_user.nil?
former_user = User.create!(
username: 'Former_User',
name: 'Former User',
email: 'former_user@example.com',
password: SecureRandom.hex(16),
active: true
)
puts "'Former User' account created with user ID: #{former_user.id}"
# Store the user ID mapping
puts "for insert_user_id_mapping: 0 (former_user) discourse_user.id #{former_user.id}"
insert_user_id_mapping(0, former_user.id)
else
puts "'Former User' account already exists with user ID: #{former_user.id}"
end
end
# Import users from Gossamer Forums to Discourse
def import_users
puts "Importing users..."
users = []
# Fetch all users from Gossamer Forums
execute_query("SELECT * FROM gforum_User").each do |row|
users << {
id: row['user_id'],
username: sanitize_username(row['user_username'], row['user_email'], row['user_real_name']),
email: row['user_email'],
created_at: Time.at(row['user_registered']),
updated_at: Time.at(row['user_last_seen']),
name: row['user_real_name'],
title: row['user_title'],
bio_raw: row['user_about'] || "",
website: row['user_homepage'],
location: row['user_location'],
custom_fields: {
md5_password: row['user_password'],
original_username: row['user_username'],
original_gossamer_id: row['user_id']
}
}
end
# Create or update users in Discourse
create_users(users) do |user|
# insert_user_id_mapping(user[:id], user.id)
user
end
# For each user, add user ID mapping to SQLite now that we know what the Discourse user ID is, ... and append user bio and import user files
users.each do |user|
# discourse_username = sanitize_username(user[:username], user[:email], user[:name])
discourse_username = user[:username]
discourse_user = User.find_by(username: discourse_username)
if discourse_user.nil?
puts "User #{user[:username]} --> #{discourse_username} not found in Discourse. Skipping file import."
next
end
# # Store the user ID mapping
# @user_id_map[user[:id]] = discourse_user.id
puts "for insert_user_id_mapping: user[:id] #{user[:id]} discourse_user.id #{discourse_user.id}"
insert_user_id_mapping(user[:id], discourse_user.id)
# Ensure user profile exists and bio_raw is a string
discourse_user.user_profile ||= UserProfile.new(user_id: discourse_user.id)
discourse_user.user_profile.bio_raw ||= ""
# Append bio if it exists, otherwise set it to empty string to avoid nil errors
if discourse_user.user_profile.bio_raw.empty?
discourse_user.user_profile.bio_raw = user[:bio_raw]
else
discourse_user.user_profile.bio_raw += "\n\n" + user[:bio_raw]
end
# Ensure the bio does not exceed 3000 characters
if discourse_user.user_profile.bio_raw.length > 3000
puts "Warning: About Me for user #{discourse_user.username} (ID: #{discourse_user.id}) exceeds 3000 characters. Truncating."
discourse_user.user_profile.bio_raw = discourse_user.user_profile.bio_raw[0, 3000]
end
discourse_user.user_profile.save!
# Import user files
import_user_files(discourse_user)
end
end
# # Import user files from Gossamer Forums to Discourse
# def import_user_files(user)
# print "\rImporting files for user #{user.username}..."
#
# original_gossamer_id = user.custom_fields['original_gossamer_id']
# if original_gossamer_id.nil? || original_gossamer_id.empty?
# puts "User #{user.username} does not have a valid original_gossamer_id. Skipping file import."
# return
# end
#
# # puts "Original Gossamer ID for user #{user.username}: #{original_gossamer_id}"
#
# # Fetch and import user files
# execute_query("SELECT * FROM gforum_User_Files WHERE ForeignColKey = #{original_gossamer_id}").each do |file|
# # Construct the file URL
# file_url = "https://forum.slowtwitch.com/images/users/images/#{file['ID'] % 10}/#{file['ID']}-#{file['File_Name']}"
# puts "User #{user.username} User ID: #{user.id} original_gossamer_id: #{original_gossamer_id} file_url: #{file_url}"
#
# new_bio = user.user_profile.bio_raw + "\n\n![#{file['File_Name']}](#{file_url})"
# if new_bio.length > 3000
# puts "Warning: About Me for user #{user.username} (ID: #{user.id}) exceeds 3000 characters after adding file link. Truncating."
# new_bio = new_bio[0, 3000]
# end
# user.user_profile.bio_raw = new_bio
# user.user_profile.save!
# end
# print "Importing files for user #{user.username}... Done.\n"
# end
# Helper method to convert TIFF to PNG
def convert_tiff_to_png(file_path)
png_path = file_path.sub('.tiff', '.png').sub('.tif', '.png')
begin
system("convert #{file_path} #{png_path}")
png_path if File.exist?(png_path)
rescue => e
puts "Failed to convert image #{file_path}: #{e.message}"
nil
end
end
# Helper method to resize an image to specified dimensions
def resize_image(file_path, max_width, max_height)
resized_path = file_path.sub(File.extname(file_path), "_resized#{File.extname(file_path)}")
begin
system("convert #{file_path} -resize #{max_width}x#{max_height} #{resized_path}")
resized_path if File.exist?(resized_path)
rescue => e
puts "Failed to resize image #{file_path}: #{e.message}"
nil
end
end
# Create avatar for the user using the provided image path
def create_avatar(user, avatar_path)
tempfile = Tempfile.new(['avatar', File.extname(avatar_path)])
FileUtils.copy_file(avatar_path, tempfile.path)
filename = "avatar#{File.extname(avatar_path)}"
upload = UploadCreator.new(tempfile, filename, type: "avatar").create_for(user.id)
if upload.present? && upload.persisted?
user.create_user_avatar
user.user_avatar.update(custom_upload_id: upload.id)
user.update(uploaded_avatar_id: upload.id)
else
puts "Failed to upload avatar for user #{user.username}: #{avatar_path}"
puts upload.errors.inspect if upload
end
rescue StandardError => e
puts "Failed to create avatar for user #{user.username}: #{avatar_path}. Error: #{e.message}"
ensure
tempfile.close! if tempfile
end
# Import user files (profile images) from Gossamer Forums to Discourse
def import_user_files(user)
print "\rImporting files for user #{user.username}..."
original_gossamer_id = user.custom_fields['original_gossamer_id']
if original_gossamer_id.nil? || original_gossamer_id.empty?
puts "User #{user.username} does not have a valid original_gossamer_id. Skipping file import."
return
end
puts "Original Gossamer ID for user #{user.username}: #{original_gossamer_id}"
images_imported = 0
execute_query("SELECT * FROM gforum_User_Files WHERE ForeignColKey = #{original_gossamer_id}").each do |file|
# Encode the filename twice to match how it is stored on the server
double_encoded_filename = file['File_Name'].gsub('%', '%25')
encoded_filename = URI.encode_www_form_component(double_encoded_filename)
# Construct the file URL
file_url = "https://forum.slowtwitch.com/images/users/images/#{file['ID'] % 10}/#{file['ID']}-#{encoded_filename}"
puts "User #{user.username} User ID: #{user.id} original_gossamer_id: #{original_gossamer_id} file_url: #{file_url}"
# Ensure the file is a user image and has a supported MIME type
next unless file['ForeignColName'] =~ /^user_image\d+$/
puts "#A"
next unless ['image/jpeg', 'image/png', 'image/gif', 'image/tiff'].include?(file['File_MimeType'])
puts "#B"
# Download the attachment
image_data = download_attachment(file_url)
next if image_data.nil?
puts "#C"
# Write the image data to a temporary file
temp_file = Tempfile.new(['user_image', File.extname(file['File_Name'])])
temp_file.binmode
temp_file.write(image_data)
temp_file.rewind
# Convert TIFF to PNG if necessary
if file['File_MimeType'] == 'image/tiff'
begin
converted_tiff_to_png_path = convert_tiff_to_png(temp_file.path)
raise "Conversion of TIFF failed" if converted_tiff_to_png_path.nil?
temp_file.close
temp_file.unlink
temp_file = File.open(converted_tiff_to_png_path)
rescue => e
puts "Skipping image due to convert failure: #{temp_file.path}"
temp_file.close
temp_file.unlink
next
end
end
# Resize the image for the avatar / profile picture (200x200)
begin
resized_image_path = resize_image(temp_file.path, 200, 200)
raise "Image resize failed" if resized_image_path.nil?
resized_temp_file = Tempfile.new(['user_image_resized', '.png'])
FileUtils.copy_file(resized_image_path, resized_temp_file.path)
rescue => e
puts "Skipping image due to resize failure: #{temp_file.path}"
temp_file.close
temp_file.unlink
next
end
# Only handle the first image for avator and profile settings
if images_imported == 0
puts "#D"
# Upload the original image for profile header and user card background
upload = upload_attachment(user, temp_file, file['File_Name'], file_url)
next if upload.nil?
# Upload the resized image for the avatar
resized_upload = upload_attachment(user, resized_temp_file, file['File_Name'], file_url)
next if resized_upload.nil?
# Ensure the upload ID is valid and exists
if resized_upload
# && UserAvatar.exists?(custom_upload_id: resized_upload.id)
# Set the avatar using the resized image
# user.user_avatar = UserAvatar.create!(user_id: user.id, custom_upload_id: resized_upload.id)
# user.save!
# user.create_user_avatar
# user.user_avatar.update(custom_upload_id: resized_upload.id)
# user.update(uploaded_avatar_id: resized_upload.id)
create_avatar(user, resized_temp_file.path)
puts "Avatar set for user #{user.username} with upload ID #{resized_upload.id}"
else
puts "Failed to set avatar for user #{user.username}"
end
# Set the Profile Header
UserProfile.find_by(user_id: user.id).update!(profile_background_upload_id: upload.id)
# Set the User Card Background
UserProfile.find_by(user_id: user.id).update!(card_background_upload_id: upload.id)
images_imported += 1
end
puts "#E"
# Append the image to the user's bio_raw only if it does not already exist
image_markdown = "\n\n![#{file['File_Name']}](#{file_url})"
user.user_profile.bio_raw ||= ""
unless user.user_profile.bio_raw.include?(image_markdown)
user.user_profile.bio_raw += image_markdown
user.user_profile.save!
end
# Clean up temporary files
temp_file.close
temp_file.unlink if temp_file.is_a?(Tempfile)
resized_temp_file.close
resized_temp_file.unlink
end
# Check for and remove exact duplicate image markdown strings
user.user_profile.bio_raw = user.user_profile.bio_raw.split("\n\n").uniq.join("\n\n")
user.user_profile.save!
print "Importing files for user #{user.username}... Done.\n"
end
# Import categories from Gossamer Forums to Discourse
def import_categories
puts "Importing categories (forums)..."
execute_query("SELECT * FROM gforum_Forum").each do |row|
# Only create category if it does not exist
unless CategoryCustomField.exists?(name: 'original_gossamer_id', value: row['forum_id'])
category_name = row['forum_name']
category_description = row['forum_desc'] || "No description provided"
puts "id #{row['forum_id']} name #{category_name} description #{category_description}"
# Create category in Discourse
category = create_category(
{
# id: row['forum_id'] + 10,
name: category_name,
description: category_description,
created_at: row['forum_last'] ? Time.at(row['forum_last']) : Time.now,
updated_at: row['forum_last'] ? Time.at(row['forum_last']) : Time.now
},
row['forum_id'] # import_id argument
)
# # Map Gossamer forum ID to Discourse category ID for future reference
# @forum_id_map[row['forum_id']] = category.id
# category.custom_fields.create!(name: 'original_gossamer_id', value: row['forum_id'])
category.custom_fields['original_gossamer_id'] = row['forum_id']
category.save!
# Store the user ID mapping
puts "for insert_category_id_mapping: category[:id] #{category[:id]} row['forum_id'] #{row['forum_id']}"
insert_category_id_mapping(row['forum_id'], category[:id])
end
end
puts "Importing categories... Done."
end
# Helper function to ensure title meets the minimum length requirement
def ensure_valid_title(title, min_length = 5)
if title.length < min_length
title += "." * (min_length - title.length) # Append dots to make it longer
end
title
end
# # Convert Gossamer tags to Discourse markdown
# def convert_gossamer_tags_to_markdown(text)
# text.gsub!(/\[b\](.*?)\[\/b\]/, '**\1**')
# text.gsub!(/\[i\](.*?)\[\/i\]/, '*\1*')
# text.gsub!(/\[img\](.*?)\[\/img\]/, '![image](\1)')
# text.gsub!(/\[quote\](.*?)\[\/quote\]/m, '[quote]\1[/quote]')
# text.gsub!(/\[quote (.*?)\](.*?)\[\/quote\]/m, '[quote=\1]\2[/quote]')
# text.gsub!(/\[font "(.*?)"\](.*?)\[\/font\]/m, '\2') # Ignoring font changes
# text.gsub!(/\[size (\d+)\](.*?)\[\/size\]/m, '\2') # Ignoring size changes
# text
# end
# Sanitize post message to remove Gossamer-specific tags and convert to Discourse-friendly format
def sanitize_post_message(message)
# Ensure the raw post string contents itself is acceptable to Discourse
sanitized_message = message&.tr("\0", '') || ""
# Ensure minimum length
if sanitized_message.strip.empty? || sanitized_message.length < 3
sanitized_message = "Empty post contents."
end
# Ensure sentence structure
unless sanitized_message.match?(/[.!?]\s|[.!?]$/)
sanitized_message += "."
end
# Remove the [signature] as we don't support this in Discourse
# sanitized_message.sub!(/\n?\[signature\]\n?\z/, '')
sanitized_message.gsub(/\n?\[signature\]\n?/, '')
# Convert Gossamer tags to Discourse markdown
sanitized_message.gsub!(/\[b\](.*?)\[\/b\]/, '**\1**')
sanitized_message.gsub!(/\[i\](.*?)\[\/i\]/, '*\1*')
sanitized_message.gsub!(/\[u\](.*?)\[\/u\]/, '<u>\1</u>')
sanitized_message.gsub!(/\[quote\](.*?)\[\/quote\]/m, '[quote]\1[/quote]')
sanitized_message.gsub!(/\[quote\s+user=(.*?)\](.*?)\[\/quote\]/m, '[quote \1]\2[/quote]')
sanitized_message.gsub!(/\[img\](.*?)\[\/img\]/, '![image](\1)')
sanitized_message.gsub!(/\[url=(.*?)\](.*?)\[\/url\]/, '[\2](\1)')
sanitized_message.gsub!(/\[size=(.*?)\](.*?)\[\/size\]/, '\2')
sanitized_message.gsub!(/\[color=(.*?)\](.*?)\[\/color\]/, '\2')
sanitized_message.gsub!(/\[font=(.*?)\](.*?)\[\/font\]/, '\2')
# Remove unsupported tags
sanitized_message.gsub!(/\[.*?\]/, '')
# Convert inline image syntax from `!(url)` to `![url](url)`
sanitized_message.gsub!(/!\((http[s]?:\/\/[^\)]+)\)/, '![\1](\1)')
sanitized_message
end
# Fetch post views from the gforum_PostView table
def fetch_post_views(post_id)
result = execute_query("SELECT post_views FROM gforum_PostView WHERE post_id_fk = #{post_id} LIMIT 1").first
result ? result['post_views'] : 0
end
# Import topics and posts from Gossamer Forums to Discourse
def import_topics_and_posts_with_attachments
puts "Importing topics and posts with attachments..."
# topic_last_post_time = {}
# topic_post_count = Hash.new(0)
# user_topic_count = Hash.new(0)
# user_post_count = Hash.new(0)
# topic_last_post_user = {}
# topic_post_numbers = Hash.new { |hash, key| hash[key] = 0 }
# Fetch the highest old_post_id from the url_map table
highest_old_post_id = fetch_highest_old_post_id.to_i
puts "Highest (OP) old_post_id in url_map: #{highest_old_post_id}"
highest_processed_post_id = fetch_highest_processed_post_id.to_i
puts "Highest processed post_id: #{highest_processed_post_id}"
# OVERRIDE........
# Attachment example: highest_processed_post_id = 1359862
# Execute the query to get all posts ordered by post_id
execute_query("SELECT * FROM gforum_Post ORDER BY post_id").each do |row|
post_id = row['post_id'].to_i
# Skip posts that have already been processed
# FIXED PROPERLY FOR FUTURE RUNS
# next if post_id < highest_old_post_id
next if post_id <= highest_processed_post_id
puts "Processing post_id #{row['post_id']} post_id #{row['post_root_id']} post_subject/title #{row['post_subject']} forum_id_fk/category_id #{row['forum_id_fk']}"
# discourse_user_id = @user_id_map[row['user_id_fk']]
# Fetch the Discourse user and category IP mappings
discourse_user_id = fetch_user_id_mapping(row['user_id_fk'])
discourse_category_id = fetch_category_id_mapping(row['forum_id_fk'])
puts "discourse_user_id #{discourse_user_id} discourse_category_id #{discourse_category_id}"
next unless discourse_user_id && discourse_category_id
# Check if the post is a topic (post_root_id == 0)
if row['post_root_id'] == 0
puts "#1"
# Ensure the title is valid
title = ensure_valid_title(row['post_subject'])
unique_title = title
# Confirm the number of views the post has had
post_views = fetch_post_views(row['post_id'])
# Skip if the topic already exists
unless TopicCustomField.exists?(name: 'original_gossamer_id', value: row['post_id'])
# Create the topic
begin
suffix = 1
topic_created = false
while !topic_created
begin
puts "#2"
# unique_title = generate_unique_title(title, discourse_user_id, Time.at(row['post_time']))
puts "CREATE TOPIC unique_title #{unique_title} title #{title} discourse_user_id #{discourse_user_id} category_id #{discourse_category_id}"
topic = Topic.create!(
title: unique_title,
user_id: discourse_user_id,
created_at: Time.at(row['post_time']),
updated_at: Time.at(row['post_time']),
category_id: discourse_category_id,
views: post_views || 0,
posts_count: 0
)
topic.custom_fields['original_gossamer_id'] = row['post_id']
topic.save!
topic_created = true
rescue ActiveRecord::RecordInvalid => e
if e.message.include?("Title has already been used")
unique_title = "#{title} (#{suffix})"
suffix += 1
else
raise e
end
end
end
# Track last post time and user for the topic
# topic_last_post_time[topic.id] = Time.at(row['post_time'])
# topic_last_post_user[topic.id] = discourse_user_id
update_db_topic_last_post_time(topic.id, Time.at(row['post_time']).to_i)
update_db_topic_last_post_user(topic.id, discourse_user_id)
# Increment the count of the number of topics created by each user
# user_topic_count[discourse_user_id] += 1
update_db_user_topic_count(discourse_user_id, fetch_db_user_topic_count(discourse_user_id).to_i + 1)
# # Ensure the raw post stirng contents itself is acceptable to Discourse
# sanitized_post_message = row['post_message']&.tr("\0", '') || ""
#
# # Convert Gossamer tags to Discourse markdown
# sanitized_post_message = convert_gossamer_tags_to_markdown(sanitized_post_message)
#
# # Remove the [signature] label from appearing at the end of the messages after import
# sanitized_post_message.sub(/\n?\[signature\]\n?\z/, '')
# sanitized_post_message.gsub(/\n?\[signature\]\n?/, '')
# Sanitize the post message
sanitized_post_message = sanitize_post_message(row['post_message'])
puts "CREATE POST topic.id #{topic.id} discourse_user_id #{discourse_user_id}"
# Increment the number of posts in the given topic.
# topic_post_numbers[topic.id] += 1
post_number = fetch_db_topic_post_numbers(topic.id).to_i + 1
update_db_topic_post_numbers(topic.id, post_number)
# Create the initial post in the topic
post = Post.create!(
topic_id: topic.id,
user_id: discourse_user_id,
# raw: import_attachments(row['post_message'], row['post_id']),
# raw: row['post_message'] || "",
raw: sanitized_post_message,
created_at: Time.at(row['post_time']),
updated_at: Time.at(row['post_time']),
like_count: row['post_likes'] || 0,
reads: post_views || 0,
post_number: post_number
)
# post_number: topic_post_numbers[topic.id]
post.custom_fields['original_gossamer_id'] = row['post_id']
post.save!
# Track the number of posts in the topic and by the user
# topic_post_count[topic.id] += 1
# user_post_count[discourse_user_id] += 1
update_db_topic_post_count(topic.id, fetch_db_topic_post_count(topic.id).to_i + 1)
update_db_user_post_count(discourse_user_id, fetch_db_user_post_count(discourse_user_id).to_i + 1)
# Handle attachments for the post
handle_post_attachments(row['post_id'], post, discourse_user_id)
# Create URL mappings
# old_url = "https://old/forum/#{row['forum_name']}/topics/#{row['post_id']}"
new_url = "https://new/t/#{topic.slug}/#{topic.id}"
insert_url_mapping(row['post_id'], new_url, unique_title)
# Update the highest processed post_id
puts "Updated highest processed post_id #{post_id}"
update_highest_processed_post_id(post_id)
rescue ActiveRecord::RecordInvalid => e
puts "Error importing topic with post_id #{row['post_id']}: #{e.message}"
end
end
else
puts "#3"
# Confirm the number of views the post has had
post_views = fetch_post_views(row['post_id'])
# Find the root topic for the post
root_topic_field = TopicCustomField.find_by(name: 'original_gossamer_id', value: row['post_root_id'])
if root_topic_field
topic_id = root_topic_field.topic_id
# Find the parent post for the reply
parent_post_field = PostCustomField.find_by(name: 'original_gossamer_id', value: row['post_father_id'])
reply_to_post_number = parent_post_field ? Post.find(parent_post_field.post_id).post_number : nil
# Create the post in the existing topic
begin
puts "#4"
# Sanitize the post message
sanitized_post_message = sanitize_post_message(row['post_message'])
# topic_post_numbers[topic_id] += 1
post_number = fetch_db_topic_post_numbers(topic_id).to_i + 1
update_db_topic_post_numbers(topic_id, post_number)
# Create the post in the existing topic
post = Post.create!(
topic_id: topic_id,
user_id: discourse_user_id,
# raw: import_attachments(row['post_message'], row['post_id']),
# raw: row['post_message'] || "",
raw: sanitized_post_message,
created_at: Time.at(row['post_time']),
updated_at: Time.at(row['post_time']),
reply_to_post_number: reply_to_post_number,
like_count: row['post_replies'] || 0,
reads: post_views || fetch_db_topic_post_count(topic_id).to_i,
post_number: post_number
)
post.custom_fields['original_gossamer_id'] = row['post_id']
post.save!
# Track the number of posts in the topic and by the user
# topic_post_count[topic_id] += 1
# user_post_count[discourse_user_id] += 1
update_db_topic_post_count(topic_id, fetch_db_topic_post_count(topic_id).to_i + 1)
update_db_user_post_count(discourse_user_id, fetch_db_user_post_count(discourse_user_id).to_i + 1)
# Update last post time and user for the topic
# if topic_last_post_time[topic_id].nil? || Time.at(row['post_time']) > topic_last_post_time[topic_id]
# topic_last_post_time[topic_id] = Time.at(row['post_time'])
# topic_last_post_user[topic_id] = discourse_user_id
# end
if fetch_db_topic_last_post_time(topic_id).nil? || Time.at(row['post_time']).to_i > fetch_db_topic_last_post_time(topic_id).to_i
update_db_topic_last_post_time(topic_id, Time.at(row['post_time']).to_i)
update_db_topic_last_post_user(topic_id, discourse_user_id)
end
# Handle attachments for the post
handle_post_attachments(row['post_id'], post, discourse_user_id)
# Update the highest processed post_id
puts "Updated highest processed post_id #{post_id}"
update_highest_processed_post_id(post_id)
rescue ActiveRecord::RecordInvalid => e
puts "Error importing post with post_id #{row['post_id']}: #{e.message}"
end
else
puts "Warning: Root topic not found for post_id #{row['post_id']} with post_root_id #{row['post_root_id']}"
end
end
end
puts "Importing topics and posts with attachments... Done."
end
def update_topic_stats
# Update topics with the correct last post time, post count, and last post user
puts "Update topics with the correct last post time, post count, and last post user"
# topic_last_post_time.each do |topic_id, last_post_time|
# Topic.find(topic_id).update!(
# updated_at: last_post_time,
# posts_count: topic_post_count[topic_id],
# last_posted_at: last_post_time,
# bumped_at: last_post_time,
# last_post_user_id: topic_last_post_user[topic_id]
# )
# end
@db.execute("SELECT * FROM topic_last_post_time").each do |row|
topic_id, last_post_time = row
# Validation error: Topic.find(topic_id).update!(
topic = Topic.find(topic_id)
# Ensure we are only updating necessary fields
topic.update_columns(
updated_at: Time.at(last_post_time),
posts_count: fetch_db_topic_post_count(topic_id).to_i,
last_posted_at: Time.at(last_post_time),
bumped_at: Time.at(last_post_time),
last_post_user_id: fetch_db_topic_last_post_user(topic_id).to_i
)
end
end
def update_user_stats
# Update user profiles with the number of topics and posts created
puts "Update user profiles with the number of topics and posts created"
# user_topic_count.each do |user_id, count|
# user = User.find(user_id)
# user.update!(topic_count: count)
# end
# user_post_count.each do |user_id, count|
# user = User.find(user_id)
# user.update!(post_count: count)
# end
@db.execute("SELECT * FROM user_topic_count").each do |row|
user_id, count = row
# user = User.find(user_id)
# user.update!(topic_count: count)
puts "update_user_stats user_id #{user_id} topic_count #{count}"
user_stat = UserStat.find_or_initialize_by(user_id: user_id)
user_stat.update_columns(topic_count: count)
end
@db.execute("SELECT * FROM user_post_count").each do |row|
user_id, count = row
# user = User.find(user_id)
# user.update!(post_count: count)
puts "update_user_stats user_id #{user_id} post_count #{count}"
user_stat = UserStat.find_or_initialize_by(user_id: user_id)
user_stat.update_columns(post_count: count)
end
end
# Import personal messages from gforum_Message table (both inbox and sent messages)
def import_personal_messages
puts "Importing personal (inbox and sentmail) messages..."
# Fetch the highest_processed_personal_id
highest_processed_personal_id = fetch_highest_processed_personal_id.to_i
puts "Highest processed personal_id: #{highest_processed_personal_id}"
# OVERRIDE - to speed getting to problem msg
# highest_processed_personal_id = 350
puts "Highest processed personal_id override: #{highest_processed_personal_id}"
execute_query("SELECT * FROM gforum_Message").each do |row|
begin
msg_id = row['msg_id'].to_i
puts "msg_id #{msg_id}"
# Skip posts that have already been processed
next if msg_id <= highest_processed_personal_id
from_user_id = fetch_user_id_mapping(row['from_user_id_fk'])
to_user_id = fetch_user_id_mapping(row['to_user_id_fk'])
next unless from_user_id && to_user_id
# Skip if the message already exists
unless TopicCustomField.exists?(name: 'original_gossamer_msg_id', value: row['msg_id'])
# Sanitize the message, ensuring we have an empty string or the content without any \0
sanitized_message = sanitize_post_message(row['msg_body'])
# Set default message body if the sanitized message is blank
sanitized_message = "<No message body to migrate.>" if sanitized_message.strip.empty? || sanitized_message.split.size < 3
# If we do not change the "min personal message post length" to 1, we need this. ... We may need this anyway.
sanitized_message = sanitized_message.ljust(10, '.') if sanitized_message.length < 10
# Check and set a default title if the original title is nil or empty
sanitized_title = row['msg_subject']&.strip
sanitized_title = "<no subject>" if sanitized_title.nil? || sanitized_title.empty?
puts "IMPORTING msg. sanitized: #{sanitized_title} user_id #{from_user_id} to_user_id #{to_user_id}"
# Create a private message topic in Discourse
topic = Topic.create!(
title: sanitized_title,
user_id: from_user_id,
archetype: Archetype.private_message,
created_at: Time.at(row['msg_time']),
updated_at: Time.at(row['msg_time'])
)
topic.custom_fields['original_gossamer_msg_id'] = row['msg_id']
topic.save!
# Create the message as a post in the private topic
post = Post.create!(
topic_id: topic.id,
user_id: from_user_id,
raw: sanitized_message,
created_at: Time.at(row['msg_time']),
updated_at: Time.at(row['msg_time'])
)
post.custom_fields['original_gossamer_msg_id'] = row['msg_id']
post.save!
# Add recipient user to the private message topic
topic.topic_allowed_users.create!(user_id: to_user_id)
update_highest_processed_personal_id(msg_id)
# N/A. These were never a thing in Slowtwitch...
# handle_post_attachments(row['msg_id'], post, from_user_id)
end
rescue StandardError => e
puts "Error importing message #{row['msg_id']}: #{e.message}"
end
end
end
# Main method to perform the import
def perform_import
# Secret trick to disable RateLimiting protection in Discourse
RateLimiter.disable
# Set our unique timestamp for this migration run
timestamp = Time.now.strftime("-%Y%m%d%H%M%S")
puts "Starting Gossamer Forums import... #{timestamp}"
add_former_user
# import_users
# export_username_mapping_to_csv("gossamer-migration-username-mapping#{timestamp}")
# import_categories
import_topics_and_posts_with_attachments
update_topic_stats
update_user_stats
export_url_mapping_to_csv("gossamer-migration-url-mapping#{timestamp}")
create_nginx_rewrite_rules("gossamer-redirects#{timestamp}.conf")
import_personal_messages
puts "Gossamer Forums import complete! #{timestamp}"
end
end
GossamerForumsImporter.new.perform_import