Class: Mail::POP3

### Home Classes Methods

### In Files

- lib/mail/network/retriever_methods/pop3.rb

### Parent

Mail::Retriever

### Methods

- ::new
- #connection
- #delete_all
- #find

### Files

- TODO.rdoc
- VERSION

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No matching classes.

# Mail::POP3

The Pop3 retriever allows to get the last, first or all emails from a POP3 server. Each email retrieved (RFC2822) is given as an instance of `Message`.

While being retrieved, emails can be yielded if a block is given.

### Example of retrieving Emails from GMail:

    Mail.defaults do
      retriever_method :pop3, { :address             => "pop.gmail.com",
                                :port                => 995,
                                :user_name           => '<username>',
                                :password            => '<password>',
                                :enable_ssl          => true }
    end

    Mail.all    #=> Returns an array of all emails
    Mail.first  #=> Returns the first unread email
    Mail.last   #=> Returns the last unread email

You can also pass options into Mail.find to locate an email in your pop mailbox with the following options:

    what:  last or first emails. The default is :first.
    order: order of emails returned. Possible values are :asc or :desc. Default value is :asc.
    count: number of emails to retrieve. The default value is 10. A value of 1 returns an
           instance of Message, not an array of Message instances.

    Mail.find(:what => :first, :count => 10, :order => :asc)
    #=> Returns the first 10 emails in ascending order

### Attributes

settings[RW]

### Public Class Methods

new(values) click to toggle source

    # File lib/mail/network/retriever_methods/pop3.rb, line 36
    def initialize(values)
      self.settings = { :address              => "localhost",
                        :port                 => 110,
                        :user_name            => nil,
                        :password             => nil,
                        :authentication       => nil,
                        :enable_ssl           => false }.merge!(values)
    end

### Public Instance Methods

connection(&block) click to toggle source

Returns the connection object of the retrievable (IMAP or POP3)

    # File lib/mail/network/retriever_methods/pop3.rb, line 101
    def connection(&block)
      raise ArgumentError.new('Mail::Retrievable#connection takes a block') unless block_given?

      start do |pop3|
        yield pop3
      end
    end

delete_all() click to toggle source

Delete all emails from a POP3 server

    # File lib/mail/network/retriever_methods/pop3.rb, line 91
    def delete_all
      start do |pop3|
        unless pop3.mails.empty?
          pop3.delete_all
          pop3.finish
        end
      end
    end

find(options = {}, &block) click to toggle source

Find emails in a POP3 mailbox. Without any options, the 5 last received emails are returned.

Possible options:

    what:  last or first emails. The default is :first.
    order: order of emails returned. Possible values are :asc or :desc. Default value is :asc.
    count: number of emails to retrieve. The default value is 10. A value of 1 returns an
           instance of Message, not an array of Message instances.
    delete_after_find: flag for whether to delete each retreived email after find. Default
            is false. Use #find_and_delete if you would like this to default to true.

    # File lib/mail/network/retriever_methods/pop3.rb, line 57
    def find(options = {}, &block)
      options = validate_options(options)

      start do |pop3|
        mails = pop3.mails
        pop3.reset # Clears all "deleted" marks. This prevents non-explicit/accidental deletions due to server settings.
        mails.sort! { |m1, m2| m2.number <=> m1.number } if options[:what] == :last
        mails = mails.first(options[:count]) if options[:count].is_a? Integer

        if options[:what].to_sym == :last && options[:order].to_sym == :desc ||
           options[:what].to_sym == :first && options[:order].to_sym == :asc ||
          mails.reverse!
        end

        if block_given?
          mails.each do |mail|
            new_message = Mail.new(mail.pop)
            new_message.mark_for_delete = true if options[:delete_after_find]
            yield new_message
            mail.delete if options[:delete_after_find] && new_message.is_marked_for_delete? # Delete if still marked for delete
          end
        else
          emails = []
          mails.each do |mail|
            emails << Mail.new(mail.pop)
            mail.delete if options[:delete_after_find]
          end
          emails.size == 1 && options[:count] == 1 ? emails.first : emails
        end

      end
    end

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