398 lines
12 KiB
Ruby
398 lines
12 KiB
Ruby
# frozen_string_literal: true
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class Bangtags
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attr_reader :status, :account
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def initialize(status)
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@status = status
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@account = status.account
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@parent_status = Status.find(status.in_reply_to_id) if status.reply?
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@prefix_ns = {
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'permalink' => ['link'],
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'cloudroot' => ['link'],
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'blogroot' => ['link'],
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}
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@aliases = {
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['media', 'end'] => ['var', 'end'],
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['media', 'stop'] => ['var', 'end'],
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['media', 'endall'] => ['var', 'endall'],
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['media', 'stopall'] => ['var', 'endall'],
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}
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# sections of the final status text
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@chunks = []
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# list of transformation commands
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@tf_cmds = []
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# list of post-processing commands
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@post_cmds = [['signature']]
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# hash of bangtag variables
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@vars = account.vars
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# keep track of what variables we're appending the value of between chunks
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@vore_stack = []
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# keep track of what type of nested components are active so we can !end them in order
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@component_stack = []
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end
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def process
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return unless status.text&.present?
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status.text.gsub!('#!!', "#\u200c!")
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status.text.split(/(#!(?:.*:!#|{.*?}|[^\s#]+))/).each do |chunk|
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if chunk.starts_with?("#!")
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chunk.sub!(/(\\:)?+:+?!#\Z/, '\1')
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chunk.sub!(/{(.*)}\Z/, '\1')
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if @vore_stack.last != '_comment'
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cmd = chunk[2..-1].strip
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next if cmd.blank?
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cmd = cmd.split(':::')
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cmd = cmd[0].split('::') + cmd[1..-1]
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cmd = cmd[0].split(':') + cmd[1..-1]
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cmd.map! {|c| c.gsub(/\\:/, ':').gsub(/\\\\:/, '\:')}
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prefix = @prefix_ns[cmd[0]]
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cmd = prefix + cmd unless prefix.nil?
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@aliases.each_key do |old_cmd|
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cmd = aliases[old_cmd] + cmd.drop(old_cmd.length) if cmd.take(old_cmd.length) == old_cmd
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end
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elsif chunk.in?(['#!comment:end', '#!comment:stop', '#!comment:endall', '#!comment:stopall'])
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@vore_stack.pop
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@component_stack.pop
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next
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else
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next
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end
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case cmd[0]
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when 'var'
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chunk = nil
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case cmd[1]
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when 'end', 'stop'
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@vore_stack.pop
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@component_stack.pop
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when 'endall', 'stopall'
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@vore_stack = []
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@component_stack.reject! {|c| c == :var}
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else
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var = cmd[1]
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next if var.nil? || var.starts_with?('_')
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new_value = cmd[2..-1]
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if new_value.blank?
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chunk = @vars[var]
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elsif new_value.length == 1 && new_value[0] == '-'
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@vore_stack.push(var)
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@component_stack.push(:var)
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else
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@vars[var] = new_value.join(':')
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end
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end
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when 'tf'
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chunk = nil
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case cmd[1]
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when 'end', 'stop'
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@tf_cmds.pop
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@component_stack.pop
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when 'endall', 'stopall'
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@tf_cmds = []
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@component_stack.reject! {|c| c == :tf}
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else
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@tf_cmds.push(cmd[1..-1])
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@component_stack.push(:tf)
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end
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when 'end', 'stop'
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chunk = nil
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case @component_stack.pop
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when :tf
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@tf_cmds.pop
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when :var, :hide
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@vore_stack.pop
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end
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when 'endall', 'stopall'
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chunk = nil
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@tf_cmds = []
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@vore_stack = []
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@component_stack = []
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when 'emojify'
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chunk = nil
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next if cmd[1].nil?
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src_img = nil
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shortcode = cmd[2]
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case cmd[1]
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when 'avatar'
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src_img = status.account.avatar
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when 'parent'
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next unless cmd[3].present? && reply?
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shortcode = cmd[3]
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next if @parent_status.nil?
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case cmd[2]
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when 'avatar'
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src_img = @parent_status.account.avatar
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end
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end
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next if src_img.nil? || shortcode.nil? || !shortcode.match?(/\A\w+\Z/)
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chunk = ":#{shortcode}:"
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emoji = CustomEmoji.find_or_initialize_by(shortcode: shortcode, domain: nil)
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if emoji.id.nil?
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emoji.image = src_img
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emoji.save
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end
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when 'emoji'
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next if cmd[1].nil?
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shortcode = cmd[1]
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domain = (cmd[2].blank? ? nil : cmd[2].downcase)
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chunk = ":#{shortcode}:"
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ours = CustomEmoji.find_or_initialize_by(shortcode: shortcode, domain: nil)
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if ours.id.nil?
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if domain.nil?
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theirs = CustomEmoji.find_by(shortcode: shortcode)
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else
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theirs = CustomEmoji.find_by(shortcode: shortcode, domain: domain)
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end
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unless theirs.nil?
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ours.image = theirs.image
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ours.save
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end
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end
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when 'char'
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chunk = nil
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charmap = {
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'zws' => "\u200b",
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'zwnj' => "\u200c",
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'zwj' => "\u200d",
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'\n' => "\n",
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'\r' => "\r",
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'\t' => "\t",
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'\T' => ' '
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}
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cmd[1..-1].each do |c|
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next if c.nil?
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if c.in?(charmap)
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@chunks << charmap[cmd[1]]
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elsif (/^\h{1,5}$/ =~ c) && c.to_i(16) > 0
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begin
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@chunks << [c.to_i(16)].pack('U*')
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rescue
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@chunks << '?'
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end
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end
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end
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when 'link'
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chunk = nil
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case cmd[1]
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when 'permalink', 'self'
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chunk = TagManager.instance.url_for(status)
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when 'cloudroot'
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chunk = "https://monsterpit.cloud/~/#{account.username}"
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when 'blogroot'
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chunk = "https://monsterpit.blog/~/#{account.username}"
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end
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when 'ping'
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mentions = []
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case cmd[1]
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when 'admins'
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mentions = User.admins.map { |u| "@#{u.account.username}" }
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mentions.sort!
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when 'mods'
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mentions = User.moderators.map { |u| "@#{u.account.username}" }
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mentions.sort!
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when 'staff'
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mentions = User.admins.map { |u| "@#{u.account.username}" }
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mentions += User.moderators.map { |u| "@#{u.account.username}" }
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mentions.uniq!
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mentions.sort!
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end
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chunk = mentions.join(' ')
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when 'tag'
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chunk = nil
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records = []
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valid_name = /^[[:word:]_\-]*[[:alpha:]_·\-][[:word:]_\-]*$/
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cmd[1..-1].select {|t| t.present? && valid_name.match?(t)}.uniq.each do |name|
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next if status.tags.where(name: name).exists?
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tag = Tag.where(name: name).first_or_create(name: name)
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status.tags << tag
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records << tag
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TrendingTags.record_use!(tag, account, status.created_at) if status.distributable?
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end
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if status.distributable?
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account.featured_tags.where(tag_id: records.map(&:id)).each do |featured_tag|
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featured_tag.increment(status.created_at)
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end
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end
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when 'thread'
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chunk = nil
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case cmd[1]
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when 'reall'
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if status.conversation_id.present?
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mention_ids = Status.where(conversation_id: status.conversation_id).flat_map { |s| s.mentions.pluck(:account_id) }
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mention_ids.uniq!
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mentions = Account.where(id: mention_ids).map { |a| "@#{a.username}" }
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chunk = mentions.join(' ')
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end
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end
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when 'parent'
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chunk = nil
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next if @parent_status.nil?
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case cmd[1]
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when 'permalink'
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chunk = TagManager.instance.url_for(@parent_status)
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end
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when 'media'
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chunk = nil
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media_idx = cmd[1]
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media_cmd = cmd[2]
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media_args = cmd[3..-1]
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next unless media_cmd.present? && media_idx.present? && media_idx.scan(/\D/).empty?
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media_idx = media_idx.to_i
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next if status.media_attachments[media_idx-1].nil?
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case media_cmd
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when 'desc'
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if media_args.present?
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@vars["media_#{media_idx}_desc"] = media_args.join(':')
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else
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@vore_stack.push("media_#{media_idx}_desc")
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@component_stack.push(:var)
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end
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end
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@post_cmds.push(['media', media_idx, media_cmd])
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when 'bangtag'
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chunk = chunk.sub('bangtag:', '').gsub(':', ":\u200c")
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when 'join'
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chunk = nil
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next if cmd[1].nil?
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charmap = {
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'zws' => "\u200b",
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'zwnj' => "\u200c",
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'zwj' => "\u200d",
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'\n' => "\n",
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'\r' => "\r",
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'\t' => "\t",
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'\T' => ' '
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}
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sep = charmap[cmd[1]]
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chunk = cmd[2..-1].join(sep.nil? ? cmd[1] : sep)
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when 'hide'
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chunk = nil
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case cmd[1]
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when 'end', 'stop', 'endall', 'stopall'
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@vore_stack.reject! {|v| v == '_'}
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@compontent_stack.reject! {|c| c == :hide}
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else
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if cmd[1].nil? && !'_'.in?(@vore_stack)
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@vore_stack.push('_')
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@component_stack.push(:hide)
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end
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end
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when 'comment'
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chunk = nil
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if cmd[1].nil?
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@vore_stack.push('_comment')
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@component_stack.push(:var)
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end
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when 'i', 'we'
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chunk = nil
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case cmd[1]
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when 'am', 'are'
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who = cmd[2]
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if who.blank?
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@vars.delete('_they:are')
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next
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elsif who == 'not'
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who = cmd[3]
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next if who.blank?
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name = who.downcase.gsub(/\s+/, '')
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@vars.delete("_they:are:#{name}")
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@vars.delete('_they:are') if @vars['_they:are'] == name
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next
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end
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name = who.downcase.gsub(/\s+/, '')
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description = cmd[3..-1].join(':').strip
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if description.blank?
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if @vars["_they:are:#{name}"].nil?
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@vars["_they:are:#{name}"] = who.strip
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end
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else
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@vars["_they:are:#{name}"] = description
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end
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@vars['_they:are'] = name.strip
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end
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end
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end
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if chunk.present? && @tf_cmds.present?
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@tf_cmds.each do |tf_cmd|
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next if chunk.nil?
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case tf_cmd[0]
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when 'replace', 'sub', 's'
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tf_cmd[1..-1].in_groups_of(2) do |args|
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chunk.sub!(*args) if args.all?
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end
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when 'replaceall', 'gsub', 'gs'
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tf_cmd[1..-1].in_groups_of(2) do |args|
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chunk.gsub!(*args) if args.all?
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end
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end
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end
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end
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unless chunk.blank? || @vore_stack.empty?
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var = @vore_stack.last
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next if var == '_'
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if @vars[var].nil?
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@vars[var] = chunk.lstrip
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else
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@vars[var] += chunk.rstrip
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end
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chunk = nil
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end
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@chunks << chunk unless chunk.nil?
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end
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@vars.transform_values! {|v| v.rstrip}
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postprocess
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account.save
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status.text = @chunks.join('')
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status.save
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end
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private
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def postprocess
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@post_cmds.each do |post_cmd|
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case post_cmd[0]
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when 'signature'
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name = @vars['_they:are']
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next if name.blank?
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description = @vars["_they:are:#{name}"]
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next if description.blank?
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@chunks << "\n\n---\n– #{description}"
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when 'media'
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media_idx = post_cmd[1]
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media_cmd = post_cmd[2]
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media_args = post_cmd[3..-1]
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case media_cmd
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when 'desc'
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status.media_attachments[media_idx-1].description = @vars["media_#{media_idx}_desc"]
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status.media_attachments[media_idx-1].save
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end
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end
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end
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end
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end
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