Class: MailFinder

Inherits:
Object
  • Object
show all
Defined in:
lib/spreewald_support/mail_finder.rb

Defined Under Namespace

Classes: Results

Class Attribute Summary collapse

Class Method Summary collapse

Class Attribute Details

.user_identity ⇒ Object

Returns the value of attribute user_identity.



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# File 'lib/spreewald_support/mail_finder.rb', line 9

def user_identity
  @user_identity
end

Class Method Details

.email_text_body(mail, type = '') ⇒ Object 



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# File 'lib/spreewald_support/mail_finder.rb', line 71

def email_text_body(mail, type = '')
  Spreewald::MailToPlaintextConverter.new(mail, type).run
end

.expected_body_regex(expected_body) ⇒ Object 



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# File 'lib/spreewald_support/mail_finder.rb', line 87

def expected_body_regex(expected_body)
  expected = '\A\n' + Regexp.quote(expected_body.strip) + '\n\Z'
  expected.gsub! '\n\*\n', '\n[\s\S]*\n'
  expected.gsub! '\*\n', '.*\n'
  expected.gsub! '\n\*', '\n.*'

  expected.gsub! '\A\n', '\A'
  expected.gsub! '\n\Z', '\Z'

  Regexp.new(expected)
end

.find(raw_data, type = '') ⇒ Object 



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# File 'lib/spreewald_support/mail_finder.rb', line 11

def find(raw_data, type = '')
  header, body = raw_data.split(/\n\n/, 2).map(&:strip_heredoc) # 2: maximum number of fields
  conditions = {}
  header.split("\n").each do |row|
    if row.match(/^[A-Za-z\-]+: /i)
      key, value = row.split(": ", 2)
      raise Spreewald::UnsupportedEmailHeader.new(key, value) unless Spreewald::SUPPORTED_EMAIL_HEADERS.include? key.strip
      conditions[key.strip.underscore.to_sym] = value.strip
    end
  end

  # Interpret all lines as body if there are no header-link lines
  if conditions.blank?
    body = [header, body].join("\n\n")
  end

  matching_header = ActionMailer::Base.deliveries.select do |mail|
    [ conditions[:to].nil? || mail.to.include?(resolve_email conditions[:to]),
      conditions[:cc].nil? || mail.cc && mail.cc.include?(resolve_email conditions[:cc]),
      conditions[:bcc].nil? || mail.bcc && mail.bcc.include?(resolve_email conditions[:bcc]),
      conditions[:from].nil? || mail.from.include?(resolve_email conditions[:from]),
      conditions[:reply_to].nil? || mail.reply_to.include?(resolve_email conditions[:reply_to]),
      conditions[:subject].nil? || mail.subject.include?(conditions[:subject]),
      conditions[:attachments].nil? || conditions[:attachments].split(/\s*,\s*/).sort == attachment_filenames(mail)
    ].all?
  end

  matching_mails = if body
    body_regex = expected_body_regex(body)
    matching_header.select do |mail|
      body_regex =~ email_text_body(mail, type).strip
    end
  else
    matching_header
  end

  Results.new(matching_mails, matching_header, body_regex)
end

.header_representation(mail) ⇒ Object 



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# File 'lib/spreewald_support/mail_finder.rb', line 58

def header_representation(mail)
  header = ""
  header << "From: #{mail.from}\n"
  header << "Reply-To: #{mail.reply_to.join(', ')}\n" if mail.reply_to
  header << "To: #{mail.to.join(', ')}\n" if mail.to
  header << "CC: #{mail.cc.join(', ')}\n" if mail.cc
  header << "BCC: #{mail.bcc.join(', ')}\n" if mail.bcc
  header << "Subject: #{mail.subject}\n"
  header << "Attachments: #{attachment_filenames(mail).join(', ')}\n" if mail.attachments.any?

  header
end

.resolve_email(identity) ⇒ Object 



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# File 'lib/spreewald_support/mail_finder.rb', line 50

def resolve_email(identity)
  if identity =~ /^.+\@.+$/
    identity
  else
    User.send("find_by_#{user_identity || 'email'}!", identity).email
  end
end

.show_mails(mails, only_header = false) ⇒ Object 



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# File 'lib/spreewald_support/mail_finder.rb', line 75

def show_mails(mails, only_header = false)
  message = ""
  mails.each_with_index do |mail, i|
    message << "E-Mail ##{i}\n"
    message <<  "-" * 80 + "\n"
    message << header_representation(mail)
    message << "\n" + email_text_body(mail).strip + "\n" unless only_header
    message <<  "-" * 80 + "\n\n"
  end
  message
end