action mailbox

迈不过友情╰ 2021-12-03 07:55 302阅读 0赞

Action Mailer Basics和Action Mailbox Basics：邮件系统。

[https://edgeguides.rubyonrails.org/action\_mailbox\_basics.html\#exim][https_edgeguides.rubyonrails.org_action_mailbox_basics.html_exim]

[https://edgeguides.rubyonrails.org/action\_mailer\_basics.html][https_edgeguides.rubyonrails.org_action_mailer_basics.html]

--------------------

### 案例： ###

//在rails6 app分支
    10238  rails action_mailbox:install
    //会生成一个app/mailboxes/application_mailbox.rb
    //同时生成3个数据库table
    
    10240  rails g scaffold User email name
    10241  rails g scaffold Discussion title
    10242  rails g scaffold Comment user:references discussion:references body:text
    10243  rails db:migrate
    
    10245  rails g mailbox Replies

上面代码使用rails6的新特性:action mailbox。它用于导航接收的email给控制器mailboxes。

它可以使用Postmark等常见API库。也可以直接通过它内建的Exim等APi来处理接收的email。

接收的email,通过使用action job来异步导航到一个或多个指定的mailboxes。

#### 使用方法 ####

安装-》配置api-》生成一个mailbox-》使用。[具体见][Link 1]

继续：

class ApplicationMailbox < ActionMailbox::Base
      # routing /something/i => :somewhere
      routing /reply\+.+@reply.github.com/i => :replies
      routing :all => :replies
    end

routing方法，指定不同的邮件到特定的mailbox中。本例所有的邮件都被RepliesMailbox类进行处理。

⚠️一个方便的转化ruby 正则表达式语法网站：[https://rubular.com/][https_rubular.com]

继续：

在replies\_mailbox.rb内编写方法。

mailbox集成了mail这个model。一个Ruby Mail Library.
    https://github.com/mikel/mail/
    提供了生成，转化，发送的一系列方法。

在gemfile.lock中可见：

actionmailbox (6.0.0.rc1)  
  ...  
  mail (>= 2.7.1)

class RepliesMailbox < ApplicationMailbox
      MATCHER = /reply-(.+)@reply.example.com/i
    
      # mail => Mail object
      # inbound_email => ActionMailbox::InboundEmail record
    
      #before_processing :ensure_user
    
    
      def process
        return if user.nil?
    
        discussion.comments.create(
          user: user,
          # decoded方法返回对象的值（格式是string）,即返回的是body,不是subject
          body: mail.decoded
        )
    
      end
    
      def user
        @user ||= User.find_by(email: mail.from)
      end
    
      def discussion
        @discussion ||= Discussion.find(discussion_id)
      end
    
    # recipients是mail的方法，find{}进行匹配找到第一个符合的data。
    # recipients可以用to方法代替。
    # recipient是一个string, 使用[Regexp, 1]得到捕捉到的字符。具体见正则表达式的捕捉()
      def discussion_id
        recipient = mail.recipients.find{|r| MATCHER.match?(r) }
        recipient[MATCHER, 1]
      end
    
      private
    
      def ensure_user
        if user.nil?
          bounce_with UserMailer.missing(inbound_email)
      end
    end

class ApplicationMailbox < ActionMailbox::Base
      # routing /something/i => :somewhere
      # routing /reply\+.+@reply.github.com/i => :replies
      # routing :all => :replies
      routing RepliesMailbox::MATCHER => :replies
    end

然后添加user和discussion2条记录。

在discussions/show.html.erb增加下面的代码：

...
    <h4>Comments</h4>
    <div>
    　<% @discussions.comments.each do |comment| %>
        <strong><%= comment.user.name%></strong> commented:<br/>
        <%= simple_format comment.body%>
      <% end %>
    </div>

完成！

#### 测试 ####

进入[http://localhost:3000/rails/conductor/action\_mailbox/inbound\_emails][http_localhost_3000_rails_conductor_action_mailbox_inbound_emails]

点击[Deliver new inbound email][]链接，选择发送一封

这是source:

Date: Fri, 24 May 2019 11:30:37 +0800
    From: 1@1.com
    To: reply-1@reply.example.com
    Message-ID: <5ce7655da43ed_c653feae01b5b9c714c@chentianweideiMac.local.mail>
    In-Reply-To: 
    Subject: congratulations
    Mime-Version: 1.0
    Content-Type: text/plain;
     charset=UTF-8
    Content-Transfer-Encoding: 7bit
    
    hello boy!

转载于:https://www.cnblogs.com/chentianwei/p/10916964.html

[https_edgeguides.rubyonrails.org_action_mailbox_basics.html_exim]: https://edgeguides.rubyonrails.org/action_mailbox_basics.html#exim
[https_edgeguides.rubyonrails.org_action_mailer_basics.html]: https://edgeguides.rubyonrails.org/action_mailer_basics.html
[Link 1]: https://edgeguides.rubyonrails.org/action_mailbox_basics.html#incineration-of-inboundemails
[https_rubular.com]: https://rubular.com/
[http_localhost_3000_rails_conductor_action_mailbox_inbound_emails]: http://localhost:3000/rails/conductor/action_mailbox/inbound_emails
[Deliver new inbound email]: http://localhost:3000/rails/conductor/action_mailbox/inbound_emails/new