120 lines
3.2 KiB
Ruby
120 lines
3.2 KiB
Ruby
# Builds a Mail::Mesage we can use for sending. Optionally supports using a template
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# for the body and subject
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module Email
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module BuildEmailHelper
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def build_email(*builder_args)
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builder = Email::MessageBuilder.new(*builder_args)
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headers(builder.header_args) if builder.header_args.present?
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mail(builder.build_args)
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end
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end
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class MessageBuilder
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def initialize(to, opts=nil)
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@to = to
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@opts = opts || {}
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end
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def subject
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subject = @opts[:subject]
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subject = I18n.t("#{@opts[:template]}.subject_template", template_args) if @opts[:template]
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subject
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end
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def body
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body = @opts[:body]
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body = I18n.t("#{@opts[:template]}.text_body_template", template_args) if @opts[:template]
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if @opts[:add_unsubscribe_link]
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body << "\n"
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body << I18n.t('unsubscribe_link', template_args)
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end
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body
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end
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def template_args
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@template_args ||= { site_name: SiteSetting.title,
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base_url: Discourse.base_url,
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user_preferences_url: "#{Discourse.base_url}/user_preferences" }.merge!(@opts)
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if @template_args[:url].present?
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if allow_reply_by_email? and
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@template_args[:respond_instructions] = I18n.t('user_notifications.reply_by_email', @template_args)
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else
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@template_args[:respond_instructions] = I18n.t('user_notifications.visit_link_to_respond', @template_args)
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end
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end
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@template_args
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end
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def build_args
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{ to: @to,
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subject: subject,
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body: body,
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charset: 'UTF-8',
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from: from_value }
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end
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def header_args
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result = {}
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if @opts[:add_unsubscribe_link]
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result['List-Unsubscribe'] = "<#{template_args[:user_preferences_url]}>" if @opts[:add_unsubscribe_link]
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end
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result['X-Discourse-Post-Id'] = @opts[:post_id].to_s if @opts[:post_id]
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result['X-Discourse-Topic-Id'] = @opts[:topic_id].to_s if @opts[:topic_id]
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if allow_reply_by_email?
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result['X-Discourse-Reply-Key'] = reply_key
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result['Reply-To'] = reply_by_email_address
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else
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result['Reply-To'] = from_value
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end
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result
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end
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protected
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def reply_key
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@reply_key ||= SecureRandom.hex(16)
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end
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def allow_reply_by_email?
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SiteSetting.reply_by_email_enabled? &&
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reply_by_email_address.present? &&
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@opts[:allow_reply_by_email]
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end
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def from_value
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return @from_value if @from_value
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@from_value = @opts[:from] || SiteSetting.notification_email
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@from_value = alias_email(@from_value)
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@from_value
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end
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def reply_by_email_address
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return @reply_by_email_address if @reply_by_email_address
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return nil unless SiteSetting.reply_by_email_address.present?
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@reply_by_email_address = SiteSetting.reply_by_email_address.dup
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@reply_by_email_address.gsub!("%{reply_key}", reply_key)
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@reply_by_email_address = alias_email(@reply_by_email_address)
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@reply_by_email_address
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end
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def alias_email(source)
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return source if @opts[:from_alias].blank?
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"#{@opts[:from_alias]} <#{source}>"
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end
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end
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end
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