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30990006a9
This reduces chances of errors where consumers of strings mutate inputs and reduces memory usage of the app. Test suite passes now, but there may be some stuff left, so we will run a few sites on a branch prior to merging
73 lines
2.2 KiB
Ruby
73 lines
2.2 KiB
Ruby
# frozen_string_literal: true
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# GroupMessage sends a private message to a group.
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# It will also avoid sending the same message repeatedly, which can happen with
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# notifications to moderators when spam is detected.
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#
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# Options:
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#
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# user: (User) If the message is about a user, pass the user object.
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# limit_once_per: (seconds) Limit sending the given type of message once every X seconds.
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# The default is 24 hours. Set to false to always send the message.
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require_dependency 'post_creator'
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require_dependency 'topic_subtype'
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require_dependency 'discourse'
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class GroupMessage
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include Rails.application.routes.url_helpers
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def self.create(group_name, message_type, opts = {})
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GroupMessage.new(group_name, message_type, opts).create
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end
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def initialize(group_name, message_type, opts = {})
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@group_name = group_name
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@message_type = message_type
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@opts = opts
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end
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def create
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unless sent_recently?
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post = PostCreator.create(
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Discourse.system_user,
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target_group_names: [@group_name],
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archetype: Archetype.private_message,
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subtype: TopicSubtype.system_message,
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title: I18n.t("system_messages.#{@message_type}.subject_template", message_params),
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raw: I18n.t("system_messages.#{@message_type}.text_body_template", message_params)
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)
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remember_message_sent
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post
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else
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false
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end
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end
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def message_params
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@message_params ||= begin
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h = { base_url: Discourse.base_url }.merge(@opts[:message_params] || {})
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if @opts[:user]
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h.merge!(username: @opts[:user].username,
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user_url: user_path(@opts[:user].username))
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end
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h
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end
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end
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def sent_recently?
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return false if @opts[:limit_once_per] == false
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$redis.get(sent_recently_key).present?
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end
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# default is to send no more than once every 24 hours (24 * 60 * 60 = 86,400 seconds)
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def remember_message_sent
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$redis.setex(sent_recently_key, @opts[:limit_once_per].try(:to_i) || 86_400, 1) unless @opts[:limit_once_per] == false
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end
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def sent_recently_key
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"grpmsg:#{@group_name}:#{@message_type}:#{@opts[:user] ? @opts[:user].username : ''}"
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end
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end
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