323 lines
10 KiB
Ruby
323 lines
10 KiB
Ruby
require "csv"
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class Vanilla < Thor
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desc "import", "Imports posts from a Vanilla export"
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method_option :file, aliases: '-f', required: true, desc: "The vanilla file to import"
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def import
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unless File.exist?(options[:file])
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puts "File '#{options[:file]}' not found"
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exit 1
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end
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load_rails
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file = read_file(options[:file])
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parse_file(file)
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disable_rate_limiter
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create_users
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create_user_memberships
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create_categories
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create_topics
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create_posts
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update_topic_statuses
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create_private_topics
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create_private_posts
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ensure
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enable_rate_limiter
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end
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no_commands do
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def load_rails
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puts "loading rails..."
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require "./config/environment"
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end
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def disable_rate_limiter
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puts "disabling rate limiter..."
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RateLimiter.disable
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end
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def read_file(file)
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puts "reading file..."
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string = File.read(file).gsub("\\N", "").gsub(/\\$\n/m, "\\n").gsub("\\,", ",").gsub(/(?<!\\)\\"/, '""').gsub(/\\\\\\"/, '\\""')
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StringIO.new(string)
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end
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def parse_file(file)
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# TODO: parse header & validate version number
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header = file.readline
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until file.eof?
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line = file.readline
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next if line.blank?
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next if line.start_with?("//")
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if m = /^Table: (\w+)/.match(line)
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# extract table name
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table = m[1]
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# read the data until an empty line
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data = []
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# first line is the table definition, turn that into a proper csv header
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data << file.readline.split(",").map { |c| c.split(":")[0].underscore }.join(",")
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until (line = file.readline).blank?
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data << line.strip
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end
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# parse the data
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puts "parsing #{table.underscore.pluralize}..."
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parsed_data = CSV.parse(data.join("\n"), headers: true, header_converters: :symbol).map { |row| row.to_hash }
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instance_variable_set("@#{table.underscore.pluralize}".to_sym, parsed_data)
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end
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end
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end
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def create_users
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puts "creating users..."
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users_created = 0
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@users.each do |user|
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begin
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next if user[:name] == "[Deleted User]"
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user[:new_id] = User.create!(
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name: user[:name],
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email: user[:email],
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username: UserNameSuggester.suggest(user[:name]),
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created_at: DateTime.strptime(user[:date_inserted], "%Y-%m-%d %H:%M:%S"),
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trust_level: TrustLevel.levels[:basic],
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bio_raw: (user[:discovery_text] || "").gsub("\\n", "\n")
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).id
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users_created += 1
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rescue ActiveRecord::RecordInvalid
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# email has already been taken...
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end
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end
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puts "created #{users_created} users!"
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end
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def create_user_memberships
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puts "creating user memberships..."
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add_administrators
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add_moderators
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end
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def add_administrators
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puts "granting admin rights..."
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admin_role_id = @roles.select { |r| r[:name] == "Administrator" }.first[:role_id]
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admin_emails = @user_roles.select { |ur| ur[:role_id] == admin_role_id }.map { |ur| @users.select { |u| u[:user_id] == ur[:user_id] }.first[:email] }
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admin_emails.each { |admin_email| User.where(email: admin_email).first.grant_admin! }
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puts "#{admin_emails.size} admins!"
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end
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def add_moderators
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puts "granting moderation rights..."
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moderator_role_id = @roles.select { |r| r[:name] == "Moderator" }.first[:role_id]
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moderator_emails = @user_roles.select { |ur| ur[:role_id] == moderator_role_id }.map { |ur| @users.select { |u| u[:user_id] == ur[:user_id] }.first[:email] }
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moderator_emails.each { |admin_email| User.where(email: admin_email).first.grant_moderation! }
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puts "#{moderator_emails.size} moderators!"
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end
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def create_categories
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puts "creating categories..."
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categories_created = 0
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@categories.each do |category|
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next if category[:category_id].to_i == -1
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# TODO: should not allow more than 2 levels
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next if category[:parent_category_id].to_i != -1
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category[:new_id] = Category.create!(
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name: category[:name],
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color: "AB9364",
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text_color: "FFF",
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position: category[:sort].to_i,
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user: get_user_by_previous_id(category[:insert_user_id]) || Discourse.system_user,
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created_at: DateTime.strptime(category[:date_inserted], "%Y-%m-%d %H:%M:%S"),
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description: category[:description]
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).id
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categories_created += 1
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end
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puts "created #{categories_created} categories!"
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end
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def create_topics
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puts "creating topics..."
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topics_created = 0
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@discussions.each do |discussion|
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user = get_user_by_previous_id(discussion[:insert_user_id]) || Discourse.system_user
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discussion[:created_at] = DateTime.strptime(discussion[:date_inserted], "%Y-%m-%d %H:%M:%S")
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options = {
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title: discussion[:name],
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raw: discussion[:body].gsub("\\n", "\n"),
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created_at: discussion[:created_at],
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skip_validations: true
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}
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options[:category] = get_category_by_previous_id(discussion[:category_id]).try(:name) if discussion[:category_id]
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post = PostCreator.new(user, options).create
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discussion[:new_id] = post.topic.id
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topics_created += 1
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end
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puts "created #{topics_created} topics!"
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end
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def create_posts
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puts "creating posts..."
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posts_created = 0
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@comments.each do |comment|
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discussion = @discussions.select { |d| d[:discussion_id] == comment[:discussion_id] }.first
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unless discussion && discussion[:new_id]
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puts "could not find discussion ##{comment[:discussion_id]}"
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next
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end
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topic_id = discussion[:new_id]
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user = get_user_by_previous_id(comment[:insert_user_id]) || Discourse.system_user
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options = {
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topic_id: topic_id,
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raw: comment[:body].gsub("\\n", "\n"),
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created_at: DateTime.strptime(comment[:date_inserted], "%Y-%m-%d %H:%M:%S"),
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skip_validations: true
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}
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post = PostCreator.new(user, options).create
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comment[:new_id] = post.id
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posts_created += 1
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end
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puts "created #{posts_created} posts!"
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end
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def update_topic_statuses
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puts "updating topic statuses..."
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@discussions.each do |discussion|
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next unless topic_id = discussion[:new_id]
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# HACK to make sure bumped_at is properly set
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sql = <<-SQL
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UPDATE topics
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SET views = :views,
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closed = :closed,
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pinned_at = :pinned_at,
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bumped_at = (SELECT created_at FROM posts WHERE topic_id = :topic_id ORDER BY created_at DESC LIMIT 1)
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WHERE id = :topic_id
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SQL
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Topic.exec_sql(sql,
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views: discussion[:count_views].to_i,
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closed: discussion[:closed] == "1",
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pinned_at: discussion[:announce] == "1" ? discussion[:created_at] : nil,
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topic_id: topic_id
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)
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end
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end
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def create_private_topics
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puts "creating private topics..."
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private_topics_created = 0
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@conversations.each do |conversation|
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# select the first conversation message
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message = @conversation_messages.select { |cm| cm[:message_id] == conversation[:first_message_id] }.first
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# list all other user ids in the conversation
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user_ids_in_conversation = @user_conversations.select { |uc| uc[:conversation_id] == conversation[:conversation_id] && uc[:user_id] != conversation[:insert_user_id] }.map { |uc| uc[:user_id] }
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# retrieve their emails
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user_emails_in_conversation = @users.select { |u| user_ids_in_conversation.include?(u[:user_id]) }.map { |u| u[:email] }
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# retrieve their usernames from the database
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target_usernames = User.where("email in (?)", user_emails_in_conversation).pluck(:username).to_a
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next if target_usernames.empty?
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user = get_user_by_previous_id(conversation[:insert_user_id]) || Discourse.system_user
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options = {
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archetype: Archetype::private_message,
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title: "Private message from #{user.username}",
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raw: message[:body].gsub("\\n", "\n"),
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target_usernames: target_usernames.join(","),
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created_at: DateTime.strptime(conversation[:date_inserted], "%Y-%m-%d %H:%M:%S"),
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skip_validations: true
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}
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post = PostCreator.new(user, options).create
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conversation[:new_id] = post.topic.id
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private_topics_created += 1
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end
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puts "created #{private_topics_created} private topics!"
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end
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def create_private_posts
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puts "creating private posts..."
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private_posts_created = 0
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@conversation_messages.each do |message|
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conversation = @conversations.select { |c| c[:conversation_id] == message[:conversation_id] }.first
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next if conversation[:first_message_id] == message[:message_id]
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next unless topic_id = conversation[:new_id]
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user = get_user_by_previous_id(message[:insert_user_id]) || Discourse.system_user
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options = {
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topic_id: topic_id,
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raw: message[:body].gsub("\\n", "\n"),
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created_at: DateTime.strptime(message[:date_inserted], "%Y-%m-%d %H:%M:%S"),
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skip_validations: true
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}
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post = PostCreator.new(user, options).create
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next unless post && post.errors.empty?
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message[:new_id] = post.id
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private_posts_created += 1
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end
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puts "created #{private_posts_created} private posts!"
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end
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def get_user_by_previous_id(previous_id)
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user = @users.select { |u| u[:user_id] == previous_id }.first
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User.find(user[:new_id]) if user && user[:new_id]
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end
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def get_category_by_previous_id(previous_id)
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category = @categories.select { |c| c[:category_id] == previous_id }.first
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Category.find(category[:new_id]) if category && category[:new_id]
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end
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def enable_rate_limiter
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puts "enabling rate limiter..."
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RateLimiter.enable
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end
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end
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end
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