Customs email headers and/or subjects tags

XioNoX · 6월 25, 2014, 8:24오후

Hi!

To be able to sort automatically notification emails sent by Discourse, it would be great if they could have customs headers (or a subject tag) based on the message’s content/content:

For example, here is a list of headers Bugzilla sends with each notification email:

X-Bugzilla-Reason: CC AssignedTo
X-Bugzilla-Type: dep_changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Classification: Other
X-Bugzilla-ID: 1014331
X-Bugzilla-Product: mozilla.org
X-Bugzilla-Component: Server Operations
X-Bugzilla-Version: other
X-Bugzilla-Keywords:
X-Bugzilla-Severity: normal
X-Bugzilla-Who: foobar@email.com
X-Bugzilla-Status: RESOLVED
X-Bugzilla-Resolution: FIXED
X-Bugzilla-Priority: –
X-Bugzilla-Assigned-To: email@email.com
X-Bugzilla-Target-Milestone: —
X-Bugzilla-Flags:
X-Bugzilla-OS: Linux
X-Bugzilla-Changed-Fields: Status Resolution
X-Bugzilla-Changed-Field-Names: bug_status resolution

Thanks!

downey · 6월 25, 2014, 8:55오후

lib/email/sender.rb

main


      
              return
            end
            true
          end
          
          #
          # Two behaviors in the mail gem collide:
          #
          #  1. Attachments are added as extra parts at the top level,
          #  2. When there are both text and html parts, the content type is set
          #     to 'multipart/alternative'.
          #
          # Since attachments aren't alternative renderings, for emails that contain
          # attachments and both html and text parts, some coercing is necessary.
          #
          # When there are alternative rendering and attachments, this method causes
          # the top level to be 'multipart/mixed' and puts the html and text parts
          # into a nested 'multipart/alternative' part.
          #
          # Due to mail gem magic, @message.text_part and @message.html_part still
          # refer to the same objects.

이 메서드는 다음 위치에서 호출됩니다:

github.com/discourse/discourse

lib/email/sender.rb

main


      
              @message.header[key] = our_value
            end
          
            value = header_value(key)
          
            # Remove Auto-Submitted header for group private message emails, it does
            # not make sense there and may hurt deliverability.
            #
            # From https://www.iana.org/assignments/auto-submitted-keywords/auto-submitted-keywords.xhtml:
            #
            # > Indicates that a message was generated by an automatic process, and is not a direct response to another message.
            @message.header[key] = nil if key.downcase == "auto-submitted" && smtp_group_id
          
            # Replace reply_key in custom headers or remove
            if value&.include?("%{reply_key}")
              # Delete old header first or else the same header will be added twice
              @message.header[key] = nil
              @message.header[key] = value.gsub!("%{reply_key}", reply_key) if reply_key.present?
            end
          end

설정값이 의도된 대로 어떻게 사용되며, 커스텀 헤더에 어떤 값이 치환될 수 있는지 Discourse 팀에서 좀 더 자세한 정보를 얻어보겠습니다.

mattdm · 1월 8, 2022, 4:31오후

@simon 비교

github.com/discourse/discourse

lib/email/message_builder.rb

c0d72ec3d


      
                # No point in adding a reply-to header if it is going to be identical
                # to the from address/alias. If the from option is not present, then
                # the default reply-to address is used.
                result['Reply-To'] = from_value if from_value != alias_email(@opts[:from])
              end
            end
          
            result.merge(MessageBuilder.custom_headers(SiteSetting.email_custom_headers))
          end
          
          def self.custom_headers(string)
            result = {}
            string.split('|').each { |item|
              header = item.split(':', 2)
              if header.length == 2
                name = header[0].strip
                value = header[1].strip
                result[name] = value if name.length > 0 && value.length > 0
              end
            } unless string.nil?
            result

을

github.com/discourse/discourse

lib/email/message_builder.rb

c0d72ec3d


      
                elsif SiteSetting.unsubscribe_via_email_footer
                  "unsubscribe_link_and_mail"
                else
                  "unsubscribe_link"
                end
                @template_args[:unsubscribe_instructions] = I18n.t(unsubscribe_string, @template_args)
              end
            end
          end
          
          def subject
            if @opts[:template] &&
                TranslationOverride.exists?(locale: I18n.locale, translation_key: "#{@opts[:template]}.subject_template")
              augmented_template_args = @template_args.merge({
                site_name: @template_args[:email_prefix],
                optional_re: @opts[:add_re_to_subject] ? I18n.t('subject_re') : '',
                optional_pm: @opts[:private_reply] ? @template_args[:subject_pm] : '',
                optional_cat: @template_args[:show_category_in_subject] ? "[#{@template_args[:show_category_in_subject]}] " : '',
                optional_tags: @template_args[:show_tags_in_subject] ? "#{@template_args[:show_tags_in_subject]} " : '',
                topic_title: @template_args[:topic_title] ? @template_args[:topic_title] : '',
              })

과 비교해 보세요.

템플릿과 email_subject 설정 사이의 관계에 대해 완전히 이해하지 못하는 부분이 있습니다. 템플릿이 존재하는 경우 email_subject가 사용되지 않는 것처럼 보이지만, 템플릿이 없는 경우가 언제인지 정확히 알지 못합니다. 이 부분을 제외하면, 커스텀 헤더를 생성하는 함수가 동일한 템플릿 처리 방식을 사용한다면 이 방식이 작동할 것이며, 커스텀 헤더에 유용한 동적 정보를 포함할 수 있을 것입니다.

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Customs email headers and/or subjects tags

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