# gossamer threads migration-import code # v0.28.1 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 # 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!(/\[u\](.*?)\[\/u\]/, '\1') 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 sendmail) 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 get 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| 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 = "" if sanitized_message.strip.empty? # 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 = "" if sanitized_title.nil? || sanitized_title.empty? puts "IMPORTING msg. sanitized_title: #{sanitized_title} orig title: #{row['msg_subject']} 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 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}" # 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