mirror of
https://github.com/discourse/discourse.git
synced 2024-12-15 10:43:44 +08:00
a3d42e2c52
This is a very long standing bug we had, if a plugin attempted to amend a serializer core was not "correcting" the situation for all descendant classes this often only showed up in production cause production eager loads serializers prior to plugins amending them. This is a critical fix for various plugins
720 lines
20 KiB
Ruby
720 lines
20 KiB
Ruby
# frozen_string_literal: true
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require 'digest/sha1'
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require 'fileutils'
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require_dependency 'plugin/metadata'
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require_dependency 'auth'
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class Plugin::CustomEmoji
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def self.cache_key
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@@cache_key ||= "plugin-emoji"
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end
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def self.emojis
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@@emojis ||= {}
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end
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def self.register(name, url)
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@@cache_key = Digest::SHA1.hexdigest(cache_key + name)[0..10]
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emojis[name] = url
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end
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def self.translations
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@@translations ||= {}
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end
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def self.translate(from, to)
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@@cache_key = Digest::SHA1.hexdigest(cache_key + from)[0..10]
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translations[from] = to
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end
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end
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class Plugin::Instance
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attr_accessor :path, :metadata
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attr_reader :admin_route
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# Memoized array readers
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[:assets,
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:color_schemes,
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:before_auth_initializers,
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:initializers,
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:javascripts,
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:locales,
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:service_workers,
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:styles,
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:themes,
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:csp_extensions,
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].each do |att|
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class_eval %Q{
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def #{att}
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@#{att} ||= []
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end
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}
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end
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def seed_data
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@seed_data ||= HashWithIndifferentAccess.new({})
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end
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def self.find_all(parent_path)
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[].tap { |plugins|
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# also follows symlinks - http://stackoverflow.com/q/357754
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Dir["#{parent_path}/*/plugin.rb"].sort.each do |path|
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# tagging is included in core, so don't load it
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next if path =~ /discourse-tagging/
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source = File.read(path)
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metadata = Plugin::Metadata.parse(source)
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plugins << self.new(metadata, path)
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end
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}
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end
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def initialize(metadata = nil, path = nil)
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@metadata = metadata
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@path = path
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@idx = 0
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end
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def add_admin_route(label, location)
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@admin_route = { label: label, location: location }
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end
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def enabled?
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@enabled_site_setting ? SiteSetting.get(@enabled_site_setting) : true
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end
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delegate :name, to: :metadata
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def add_to_serializer(serializer, attr, define_include_method = true, &block)
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reloadable_patch do |plugin|
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base = "#{serializer.to_s.classify}Serializer".constantize rescue "#{serializer.to_s}Serializer".constantize
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# we have to work through descendants cause serializers may already be baked and cached
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([base] + base.descendants).each do |klass|
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unless attr.to_s.start_with?("include_")
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klass.attributes(attr)
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if define_include_method
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# Don't include serialized methods if the plugin is disabled
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klass.public_send(:define_method, "include_#{attr}?") { plugin.enabled? }
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end
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end
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klass.public_send(:define_method, attr, &block)
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end
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end
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end
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# Applies to all sites in a multisite environment. Ignores plugin.enabled?
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def add_report(name, &block)
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reloadable_patch do |plugin|
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Report.add_report(name, &block)
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end
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end
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# Applies to all sites in a multisite environment. Ignores plugin.enabled?
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def replace_flags
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settings = ::FlagSettings.new
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yield settings
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reloadable_patch do |plugin|
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::PostActionType.replace_flag_settings(settings)
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end
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end
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def whitelist_flag_post_custom_field(field)
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reloadable_patch do |plugin|
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::FlagQuery.register_plugin_post_custom_field(field, plugin) # plugin.enabled? is checked at runtime
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end
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end
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def whitelist_staff_user_custom_field(field)
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reloadable_patch do |plugin|
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::User.register_plugin_staff_custom_field(field, plugin) # plugin.enabled? is checked at runtime
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end
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end
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def whitelist_public_user_custom_field(field)
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reloadable_patch do |plugin|
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::User.register_plugin_public_custom_field(field, plugin) # plugin.enabled? is checked at runtime
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end
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end
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def register_editable_user_custom_field(field)
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reloadable_patch do |plugin|
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::User.register_plugin_editable_user_custom_field(field, plugin) # plugin.enabled? is checked at runtime
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end
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end
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def register_editable_group_custom_field(field)
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reloadable_patch do |plugin|
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::Group.register_plugin_editable_group_custom_field(field, plugin) # plugin.enabled? is checked at runtime
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end
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end
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def custom_avatar_column(column)
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reloadable_patch do |plugin|
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AvatarLookup.lookup_columns << column
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AvatarLookup.lookup_columns.uniq!
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end
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end
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# Applies to all sites in a multisite environment. Ignores plugin.enabled?
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def add_body_class(class_name)
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reloadable_patch do |plugin|
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::ApplicationHelper.extra_body_classes << class_name
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end
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end
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def rescue_from(exception, &block)
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reloadable_patch do |plugin|
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::ApplicationController.rescue_from(exception, &block)
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end
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end
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# Extend a class but check that the plugin is enabled
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# for class methods use `add_class_method`
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def add_to_class(class_name, attr, &block)
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reloadable_patch do |plugin|
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klass = class_name.to_s.classify.constantize rescue class_name.to_s.constantize
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hidden_method_name = :"#{attr}_without_enable_check"
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klass.public_send(:define_method, hidden_method_name, &block)
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klass.public_send(:define_method, attr) do |*args|
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public_send(hidden_method_name, *args) if plugin.enabled?
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end
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end
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end
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# Adds a class method to a class, respecting if plugin is enabled
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def add_class_method(klass_name, attr, &block)
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reloadable_patch do |plugin|
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klass = klass_name.to_s.classify.constantize rescue klass_name.to_s.constantize
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hidden_method_name = :"#{attr}_without_enable_check"
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klass.public_send(:define_singleton_method, hidden_method_name, &block)
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klass.public_send(:define_singleton_method, attr) do |*args|
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public_send(hidden_method_name, *args) if plugin.enabled?
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end
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end
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end
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def add_model_callback(klass_name, callback, options = {}, &block)
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reloadable_patch do |plugin|
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klass = klass_name.to_s.classify.constantize rescue klass_name.to_s.constantize
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# generate a unique method name
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method_name = "#{plugin.name}_#{klass.name}_#{callback}#{@idx}".underscore
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@idx += 1
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hidden_method_name = :"#{method_name}_without_enable_check"
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klass.public_send(:define_method, hidden_method_name, &block)
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klass.public_send(callback, options) do |*args|
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public_send(hidden_method_name, *args) if plugin.enabled?
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end
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hidden_method_name
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end
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end
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# Add a post_custom_fields_whitelister block to the TopicView, respecting if the plugin is enabled
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def topic_view_post_custom_fields_whitelister(&block)
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reloadable_patch do |plugin|
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::TopicView.add_post_custom_fields_whitelister do |user|
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plugin.enabled? ? block.call(user) : []
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end
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end
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end
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# Applies to all sites in a multisite environment. Ignores plugin.enabled?
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def add_preloaded_group_custom_field(field)
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reloadable_patch do |plugin|
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::Group.preloaded_custom_field_names << field
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end
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end
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# Applies to all sites in a multisite environment. Ignores plugin.enabled?
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def add_preloaded_topic_list_custom_field(field)
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reloadable_patch do |plugin|
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::TopicList.preloaded_custom_fields << field
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end
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end
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# Add a permitted_create_param to Post, respecting if the plugin is enabled
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def add_permitted_post_create_param(name)
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reloadable_patch do |plugin|
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::Post.plugin_permitted_create_params[name] = plugin
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end
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end
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# Add validation method but check that the plugin is enabled
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def validate(klass, name, &block)
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klass = klass.to_s.classify.constantize
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klass.public_send(:define_method, name, &block)
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plugin = self
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klass.validate(name, if: -> { plugin.enabled? })
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end
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# will make sure all the assets this plugin needs are registered
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def generate_automatic_assets!
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paths = []
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assets = []
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automatic_assets.each do |path, contents|
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write_asset(path, contents)
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paths << path
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assets << [path]
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end
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delete_extra_automatic_assets(paths)
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assets
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end
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def delete_extra_automatic_assets(good_paths)
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return unless Dir.exists? auto_generated_path
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filenames = good_paths.map { |f| File.basename(f) }
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# nuke old files
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Dir.foreach(auto_generated_path) do |p|
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next if [".", ".."].include?(p)
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next if filenames.include?(p)
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File.delete(auto_generated_path + "/#{p}")
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end
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end
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def ensure_directory(path)
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dirname = File.dirname(path)
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unless File.directory?(dirname)
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FileUtils.mkdir_p(dirname)
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end
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end
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def directory
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File.dirname(path)
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end
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def auto_generated_path
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File.dirname(path) << "/auto_generated"
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end
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def after_initialize(&block)
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initializers << block
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end
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def before_auth(&block)
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raise "Auth providers must be registered before omniauth middleware. after_initialize is too late!" if @before_auth_complete
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before_auth_initializers << block
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end
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# A proxy to `DiscourseEvent.on` which does nothing if the plugin is disabled
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def on(event_name, &block)
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DiscourseEvent.on(event_name) do |*args|
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block.call(*args) if enabled?
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end
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end
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def notify_after_initialize
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color_schemes.each do |c|
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unless ColorScheme.where(name: c[:name]).exists?
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ColorScheme.create_from_base(name: c[:name], colors: c[:colors])
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end
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end
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initializers.each do |callback|
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begin
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callback.call(self)
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rescue ActiveRecord::StatementInvalid => e
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# When running `db:migrate` for the first time on a new database,
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# plugin initializers might try to use models.
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# Tolerate it.
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raise e unless e.message.try(:include?, "PG::UndefinedTable")
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end
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end
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end
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def notify_before_auth
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before_auth_initializers.each do |callback|
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callback.call(self)
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end
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@before_auth_complete = true
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end
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# Applies to all sites in a multisite environment. Ignores plugin.enabled?
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def register_category_custom_field_type(name, type)
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reloadable_patch do |plugin|
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Category.register_custom_field_type(name, type)
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end
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end
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# Applies to all sites in a multisite environment. Ignores plugin.enabled?
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def register_topic_custom_field_type(name, type)
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reloadable_patch do |plugin|
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::Topic.register_custom_field_type(name, type)
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end
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end
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# Applies to all sites in a multisite environment. Ignores plugin.enabled?
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def register_post_custom_field_type(name, type)
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reloadable_patch do |plugin|
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::Post.register_custom_field_type(name, type)
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end
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end
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# Applies to all sites in a multisite environment. Ignores plugin.enabled?
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def register_group_custom_field_type(name, type)
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reloadable_patch do |plugin|
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::Group.register_custom_field_type(name, type)
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end
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end
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def register_seedfu_fixtures(paths)
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paths = [paths] if !paths.kind_of?(Array)
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SeedFu.fixture_paths.concat(paths)
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end
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def listen_for(event_name)
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return unless self.respond_to?(event_name)
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DiscourseEvent.on(event_name, &self.method(event_name))
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end
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def register_css(style)
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styles << style
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end
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def register_javascript(js)
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javascripts << js
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end
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def register_svg_icon(icon)
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DiscoursePluginRegistry.register_svg_icon(icon)
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end
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def extend_content_security_policy(extension)
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csp_extensions << extension
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end
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# @option opts [String] :name
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# @option opts [String] :nativeName
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# @option opts [String] :fallbackLocale
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# @option opts [Hash] :plural
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def register_locale(locale, opts = {})
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locales << [locale, opts]
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end
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def register_custom_html(hash)
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DiscoursePluginRegistry.custom_html ||= {}
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DiscoursePluginRegistry.custom_html.merge!(hash)
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end
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def register_html_builder(name, &block)
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DiscoursePluginRegistry.register_html_builder(name, &block)
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end
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def register_asset(file, opts = nil)
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if opts && opts == :vendored_core_pretty_text
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full_path = DiscoursePluginRegistry.core_asset_for_name(file)
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else
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full_path = File.dirname(path) << "/assets/" << file
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end
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assets << [full_path, opts]
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end
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def register_service_worker(file, opts = nil)
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service_workers << [
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File.join(File.dirname(path), 'assets', file),
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opts
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]
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end
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def register_color_scheme(name, colors)
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color_schemes << { name: name, colors: colors }
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end
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def register_seed_data(key, value)
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seed_data[key] = value
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end
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def register_seed_path_builder(&block)
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DiscoursePluginRegistry.register_seed_path_builder(&block)
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end
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def register_emoji(name, url)
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Plugin::CustomEmoji.register(name, url)
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end
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def translate_emoji(from, to)
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Plugin::CustomEmoji.translate(from, to)
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end
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def automatic_assets
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css = styles.join("\n")
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js = javascripts.join("\n")
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# Generate an IIFE for the JS
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js = "(function(){#{js}})();" if js.present?
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result = []
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result << [css, 'css'] if css.present?
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result << [js, 'js'] if js.present?
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result.map do |asset, extension|
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hash = Digest::SHA1.hexdigest asset
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["#{auto_generated_path}/plugin_#{hash}.#{extension}", asset]
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end
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end
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# note, we need to be able to parse seperately to activation.
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# this allows us to present information about a plugin in the UI
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# prior to activations
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def activate!
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if @path
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# Automatically include all ES6 JS and hbs files
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root_path = "#{File.dirname(@path)}/assets/javascripts"
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DiscoursePluginRegistry.register_glob(root_path, 'js.es6')
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DiscoursePluginRegistry.register_glob(root_path, 'hbs')
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admin_path = "#{File.dirname(@path)}/admin/assets/javascripts"
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DiscoursePluginRegistry.register_glob(admin_path, 'js.es6', admin: true)
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DiscoursePluginRegistry.register_glob(admin_path, 'hbs', admin: true)
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end
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self.instance_eval File.read(path), path
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if auto_assets = generate_automatic_assets!
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assets.concat(auto_assets)
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end
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register_assets! unless assets.blank?
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register_locales!
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register_service_workers!
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seed_data.each do |key, value|
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DiscoursePluginRegistry.register_seed_data(key, value)
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end
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# TODO: possibly amend this to a rails engine
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# Automatically include assets
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Rails.configuration.assets.paths << auto_generated_path
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Rails.configuration.assets.paths << File.dirname(path) + "/assets"
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Rails.configuration.assets.paths << File.dirname(path) + "/admin/assets"
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Rails.configuration.assets.paths << File.dirname(path) + "/test/javascripts"
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# Automatically include rake tasks
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Rake.add_rakelib(File.dirname(path) + "/lib/tasks")
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# Automatically include migrations
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migration_paths = Rails.configuration.paths["db/migrate"]
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migration_paths << File.dirname(path) + "/db/migrate"
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unless Discourse.skip_post_deployment_migrations?
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migration_paths << "#{File.dirname(path)}/#{Discourse::DB_POST_MIGRATE_PATH}"
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end
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public_data = File.dirname(path) + "/public"
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if Dir.exists?(public_data)
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target = Rails.root.to_s + "/public/plugins/"
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Discourse::Utils.execute_command('mkdir', '-p', target)
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target << name.gsub(/\s/, "_")
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# TODO a cleaner way of registering and unregistering
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Discourse::Utils.execute_command('rm', '-f', target)
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Discourse::Utils.execute_command('ln', '-s', public_data, target)
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end
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end
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def auth_provider(opts)
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before_auth do
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provider = Auth::AuthProvider.new
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Auth::AuthProvider.auth_attributes.each do |sym|
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provider.public_send("#{sym}=", opts.delete(sym)) if opts.has_key?(sym)
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end
|
|
|
|
begin
|
|
provider.authenticator.enabled?
|
|
rescue NotImplementedError
|
|
provider.authenticator.define_singleton_method(:enabled?) do
|
|
Discourse.deprecate("#{provider.authenticator.class.name} should define an `enabled?` function. Patching for now.")
|
|
return SiteSetting.get(provider.enabled_setting) if provider.enabled_setting
|
|
Discourse.deprecate("#{provider.authenticator.class.name} has not defined an enabled_setting. Defaulting to true.")
|
|
true
|
|
end
|
|
end
|
|
|
|
DiscoursePluginRegistry.register_auth_provider(provider)
|
|
end
|
|
end
|
|
|
|
# shotgun approach to gem loading, in future we need to hack bundler
|
|
# to at least determine dependencies do not clash before loading
|
|
#
|
|
# Additionally we want to support multiple ruby versions correctly and so on
|
|
#
|
|
# This is a very rough initial implementation
|
|
def gem(name, version, opts = {})
|
|
PluginGem.load(path, name, version, opts)
|
|
end
|
|
|
|
def hide_plugin
|
|
Discourse.hidden_plugins << self
|
|
end
|
|
|
|
def enabled_site_setting_filter(filter = nil)
|
|
if filter
|
|
@enabled_setting_filter = filter
|
|
else
|
|
@enabled_setting_filter
|
|
end
|
|
end
|
|
|
|
def enabled_site_setting(setting = nil)
|
|
if setting
|
|
@enabled_site_setting = setting
|
|
else
|
|
@enabled_site_setting
|
|
end
|
|
end
|
|
|
|
def handlebars_includes
|
|
assets.map do |asset, opts|
|
|
next if opts == :admin
|
|
next unless asset =~ DiscoursePluginRegistry::HANDLEBARS_REGEX
|
|
asset
|
|
end.compact
|
|
end
|
|
|
|
def javascript_includes
|
|
assets.map do |asset, opts|
|
|
next if opts == :vendored_core_pretty_text
|
|
next if opts == :admin
|
|
next unless asset =~ DiscoursePluginRegistry::JS_REGEX
|
|
asset
|
|
end.compact
|
|
end
|
|
|
|
def each_globbed_asset
|
|
if @path
|
|
# Automatically include all ES6 JS and hbs files
|
|
root_path = "#{File.dirname(@path)}/assets/javascripts"
|
|
|
|
Dir.glob("#{root_path}/**/*") do |f|
|
|
if File.directory?(f)
|
|
yield [f, true]
|
|
elsif f.to_s.ends_with?(".js.es6") || f.to_s.ends_with?(".hbs")
|
|
yield [f, false]
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
def register_reviewable_type(reviewable_type_class)
|
|
extend_list_method Reviewable, :types, [reviewable_type_class.name]
|
|
end
|
|
|
|
def extend_list_method(klass, method, new_attributes)
|
|
current_list = klass.public_send(method)
|
|
current_list.concat(new_attributes)
|
|
|
|
reloadable_patch do
|
|
klass.public_send(:define_singleton_method, method) { current_list }
|
|
end
|
|
end
|
|
|
|
protected
|
|
|
|
def register_assets!
|
|
assets.each do |asset, opts|
|
|
DiscoursePluginRegistry.register_asset(asset, opts)
|
|
end
|
|
end
|
|
|
|
def register_service_workers!
|
|
service_workers.each do |asset, opts|
|
|
DiscoursePluginRegistry.register_service_worker(asset, opts)
|
|
end
|
|
end
|
|
|
|
def register_locales!
|
|
root_path = File.dirname(@path)
|
|
|
|
locales.each do |locale, opts|
|
|
opts = opts.dup
|
|
opts[:client_locale_file] = File.join(root_path, "config/locales/client.#{locale}.yml")
|
|
opts[:server_locale_file] = File.join(root_path, "config/locales/server.#{locale}.yml")
|
|
opts[:js_locale_file] = File.join(root_path, "assets/locales/#{locale}.js.erb")
|
|
|
|
locale_chain = opts[:fallbackLocale] ? [locale, opts[:fallbackLocale]] : [locale]
|
|
lib_locale_path = File.join(root_path, "lib/javascripts/locale")
|
|
|
|
path = File.join(lib_locale_path, "message_format")
|
|
opts[:message_format] = find_locale_file(locale_chain, path)
|
|
opts[:message_format] = JsLocaleHelper.find_message_format_locale(locale_chain, fallback_to_english: false) unless opts[:message_format]
|
|
|
|
path = File.join(lib_locale_path, "moment_js")
|
|
opts[:moment_js] = find_locale_file(locale_chain, path)
|
|
opts[:moment_js] = JsLocaleHelper.find_moment_locale(locale_chain) unless opts[:moment_js]
|
|
|
|
path = File.join(lib_locale_path, "moment_js_timezones")
|
|
opts[:moment_js_timezones] = find_locale_file(locale_chain, path)
|
|
opts[:moment_js_timezones] = JsLocaleHelper.find_moment_locale(locale_chain, timezone_names: true) unless opts[:moment_js_timezones]
|
|
|
|
if valid_locale?(opts)
|
|
DiscoursePluginRegistry.register_locale(locale, opts)
|
|
Rails.configuration.assets.precompile << "locales/#{locale}.js"
|
|
else
|
|
msg = "Invalid locale! #{opts.inspect}"
|
|
# The logger isn't always present during boot / parsing locales from plugins
|
|
if Rails.logger.present?
|
|
Rails.logger.error(msg)
|
|
else
|
|
puts msg
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
private
|
|
|
|
def write_asset(path, contents)
|
|
unless File.exists?(path)
|
|
ensure_directory(path)
|
|
File.open(path, "w") { |f| f.write(contents) }
|
|
end
|
|
end
|
|
|
|
def reloadable_patch(plugin = self)
|
|
if Rails.env.development? && defined?(ActiveSupport::Reloader)
|
|
ActiveSupport::Reloader.to_prepare do
|
|
# reload the patch
|
|
yield plugin
|
|
end
|
|
end
|
|
|
|
# apply the patch
|
|
yield plugin
|
|
end
|
|
|
|
def valid_locale?(custom_locale)
|
|
File.exist?(custom_locale[:client_locale_file]) &&
|
|
File.exist?(custom_locale[:server_locale_file]) &&
|
|
File.exist?(custom_locale[:js_locale_file]) &&
|
|
custom_locale[:message_format] && custom_locale[:moment_js]
|
|
end
|
|
|
|
def find_locale_file(locale_chain, path)
|
|
locale_chain.each do |locale|
|
|
filename = File.join(path, "#{locale}.js")
|
|
return [locale, filename] if File.exist?(filename)
|
|
end
|
|
nil
|
|
end
|
|
end
|