module Net::IMAP::DeprecatedClientOptions

This module handles deprecated arguments to various Net::IMAP methods.

Public Class Methods

Net::IMAP.new(host, **options) # standard keyword options click to toggle source
Net::IMAP.new(host, options) # obsolete hash options
Net::IMAP.new(host, port) # obsolete port argument
Net::IMAP.new(host, port, usessl, certs = nil, verify = true) # deprecated SSL arguments

Translates Net::IMAP.new arguments for backward compatibility.

Obsolete arguments ↑

Using obsolete arguments does not a warning. Obsolete arguments will be deprecated by a future release.

If a second positional argument is given and it is a hash (or is convertable via #to_hash), it is converted to keyword arguments.

# Obsolete:
Net::IMAP.new("imap.example.com", options_hash)
# Use instead:
Net::IMAP.new("imap.example.com", **options_hash)

If a second positional argument is given and it is not a hash, it is converted to the port keyword argument.

# Obsolete:
Net::IMAP.new("imap.example.com", 114433)
# Use instead:
Net::IMAP.new("imap.example.com", port: 114433)

Deprecated arguments ↑

Using deprecated arguments prints a warning. Convert to keyword arguments to avoid the warning. Deprecated arguments will be removed in a future release.

If usessl is false, certs, and verify are ignored. When it true, all three arguments are converted to the ssl keyword argument. Without certs or verify, it is converted to ssl: true.

# DEPRECATED:
Net::IMAP.new("imap.example.com", nil, true) # => prints a warning
# Use instead:
Net::IMAP.new("imap.example.com", ssl: true)

When certs is a path to a directory, it is converted to ca_path: certs.

# DEPRECATED:
Net::IMAP.new("imap.example.com", nil, true, "/path/to/certs") # => prints a warning
# Use instead:
Net::IMAP.new("imap.example.com", ssl: {ca_path: "/path/to/certs"})

When certs is a path to a file, it is converted to ca_file: certs.

# DEPRECATED:
Net::IMAP.new("imap.example.com", nil, true, "/path/to/cert.pem") # => prints a warning
# Use instead:
Net::IMAP.new("imap.example.com", ssl: {ca_file: "/path/to/cert.pem"})

When verify is false, it is converted to verify_mode: OpenSSL::SSL::VERIFY_NONE.

# DEPRECATED:
Net::IMAP.new("imap.example.com", nil, true, nil, false) # => prints a warning
# Use instead:
Net::IMAP.new("imap.example.com", ssl: {verify_mode: OpenSSL::SSL::VERIFY_NONE})
Calls superclass method 
# File net-imap-0.4.9.1/lib/net/imap/deprecated_client_options.rb, line 72
def initialize(host, port_or_options = nil, *deprecated, **options)
  if port_or_options.nil? && deprecated.empty?
    super host, **options
  elsif options.any?
    # Net::IMAP.new(host, *__invalid__, **options)
    raise ArgumentError, "Do not combine deprecated and keyword arguments"
  elsif port_or_options.respond_to?(:to_hash) and deprecated.any?
    # Net::IMAP.new(host, options, *__invalid__)
    raise ArgumentError, "Do not use deprecated SSL params with options hash"
  elsif port_or_options.respond_to?(:to_hash)
    super host, **Hash.try_convert(port_or_options)
  elsif deprecated.empty?
    super host, port: port_or_options
  elsif deprecated.shift
    warn "DEPRECATED: Call Net::IMAP.new with keyword options", uplevel: 1
    super host, port: port_or_options, ssl: create_ssl_params(*deprecated)
  else
    warn "DEPRECATED: Call Net::IMAP.new with keyword options", uplevel: 1
    super host, port: port_or_options, ssl: false
  end
end

Public Instance Methods

starttls(**options) # standard click to toggle source
starttls(options = {}) # obsolete
starttls(certs = nil, verify = true) # deprecated

Translates Net::IMAP#starttls arguments for backward compatibility.

Support for certs and verify will be dropped in a future release.

See ::new for interpretation of certs and verify.

Calls superclass method 
# File net-imap-0.4.9.1/lib/net/imap/deprecated_client_options.rb, line 104
def starttls(*deprecated, **options)
  if deprecated.empty?
    super(**options)
  elsif options.any?
    # starttls(*__invalid__, **options)
    raise ArgumentError, "Do not combine deprecated and keyword options"
  elsif deprecated.first.respond_to?(:to_hash) && deprecated.length > 1
    # starttls(*__invalid__, **options)
    raise ArgumentError, "Do not use deprecated verify param with options hash"
  elsif deprecated.first.respond_to?(:to_hash)
    super(**Hash.try_convert(deprecated.first))
  else
    warn "DEPRECATED: Call Net::IMAP#starttls with keyword options", uplevel: 1
    super(**create_ssl_params(*deprecated))
  end
end

Private Instance Methods

create_ssl_params(certs = nil, verify = true) click to toggle source 
# File net-imap-0.4.9.1/lib/net/imap/deprecated_client_options.rb, line 123
def create_ssl_params(certs = nil, verify = true)
  params = {}
  if certs
    if File.file?(certs)
      params[:ca_file] = certs
    elsif File.directory?(certs)
      params[:ca_path] = certs
    end
  end
  params[:verify_mode] =
    verify ? OpenSSL::SSL::VERIFY_PEER : OpenSSL::SSL::VERIFY_NONE
  params
end