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| protocol.rb | |||||
| smtp.rb | |||||
| telnet.rb |
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#
# = net/protocol.rb
#
#--
# Copyright (c) 1999-2004 Yukihiro Matsumoto
# Copyright (c) 1999-2004 Minero Aoki
#
# written and maintained by Minero Aoki <aamine@loveruby.net>
#
# This program is free software. You can re-distribute and/or
# modify this program under the same terms as Ruby itself,
# Ruby Distribute License or GNU General Public License.
#
# $Id: protocol.rb 46496 2014-06-22 16:53:59Z nagachika $
#++
#
# WARNING: This file is going to remove.
# Do not rely on the implementation written in this file.
#
require 'socket'
require 'timeout'
module Net # :nodoc:
class Protocol #:nodoc: internal use only
private
def Protocol.protocol_param(name, val)
module_eval(<<-End, __FILE__, __LINE__ + 1)
def #{name}
#{val}
end
End
end
end
class ProtocolError < StandardError; end
class ProtoSyntaxError < ProtocolError; end
class ProtoFatalError < ProtocolError; end
class ProtoUnknownError < ProtocolError; end
class ProtoServerError < ProtocolError; end
class ProtoAuthError < ProtocolError; end
class ProtoCommandError < ProtocolError; end
class ProtoRetriableError < ProtocolError; end
ProtocRetryError = ProtoRetriableError
##
# OpenTimeout, a subclass of Timeout::Error, is raised if a connection cannot
# be created within the open_timeout.
class OpenTimeout < Timeout::Error; end
##
# ReadTimeout, a subclass of Timeout::Error, is raised if a chunk of the
# response cannot be read within the read_timeout.
class ReadTimeout < Timeout::Error; end
class BufferedIO #:nodoc: internal use only
def initialize(io)
@io = io
@read_timeout = 60
@continue_timeout = nil
@debug_output = nil
@rbuf = ''
end
attr_reader :io
attr_accessor :read_timeout
attr_accessor :continue_timeout
attr_accessor :debug_output
def inspect
"#<#{self.class} io=#{@io}>"
end
def eof?
@io.eof?
end
def closed?
@io.closed?
end
def close
@io.close
end
#
# Read
#
public
def read(len, dest = '', ignore_eof = false)
LOG "reading #{len} bytes..."
read_bytes = 0
begin
while read_bytes + @rbuf.size < len
dest << (s = rbuf_consume(@rbuf.size))
read_bytes += s.size
rbuf_fill
end
dest << (s = rbuf_consume(len - read_bytes))
read_bytes += s.size
rescue EOFError
raise unless ignore_eof
end
LOG "read #{read_bytes} bytes"
dest
end
def read_all(dest = '')
LOG 'reading all...'
read_bytes = 0
begin
while true
dest << (s = rbuf_consume(@rbuf.size))
read_bytes += s.size
rbuf_fill
end
rescue EOFError
;
end
LOG "read #{read_bytes} bytes"
dest
end
def readuntil(terminator, ignore_eof = false)
begin
until idx = @rbuf.index(terminator)
rbuf_fill
end
return rbuf_consume(idx + terminator.size)
rescue EOFError
raise unless ignore_eof
return rbuf_consume(@rbuf.size)
end
end
def readline
readuntil("\n").chop
end
private
BUFSIZE = 1024 * 16
def rbuf_fill
begin
@rbuf << @io.read_nonblock(BUFSIZE)
rescue IO::WaitReadable
if IO.select([@io], nil, nil, @read_timeout)
retry
else
raise Net::ReadTimeout
end
rescue IO::WaitWritable
# OpenSSL::Buffering#read_nonblock may fail with IO::WaitWritable.
# http://www.openssl.org/support/faq.html#PROG10
if IO.select(nil, [@io], nil, @read_timeout)
retry
else
raise Net::ReadTimeout
end
end
end
def rbuf_consume(len)
s = @rbuf.slice!(0, len)
@debug_output << %Q[-> #{s.dump}\n] if @debug_output
s
end
#
# Write
#
public
def write(str)
writing {
write0 str
}
end
alias << write
def writeline(str)
writing {
write0 str + "\r\n"
}
end
private
def writing
@written_bytes = 0
@debug_output << '<- ' if @debug_output
yield
@debug_output << "\n" if @debug_output
bytes = @written_bytes
@written_bytes = nil
bytes
end
def write0(str)
@debug_output << str.dump if @debug_output
len = @io.write(str)
@written_bytes += len
len
end
#
# Logging
#
private
def LOG_off
@save_debug_out = @debug_output
@debug_output = nil
end
def LOG_on
@debug_output = @save_debug_out
end
def LOG(msg)
return unless @debug_output
@debug_output << msg + "\n"
end
end
class InternetMessageIO < BufferedIO #:nodoc: internal use only
def initialize(io)
super
@wbuf = nil
end
#
# Read
#
def each_message_chunk
LOG 'reading message...'
LOG_off()
read_bytes = 0
while (line = readuntil("\r\n")) != ".\r\n"
read_bytes += line.size
yield line.sub(/\A\./, '')
end
LOG_on()
LOG "read message (#{read_bytes} bytes)"
end
# *library private* (cannot handle 'break')
def each_list_item
while (str = readuntil("\r\n")) != ".\r\n"
yield str.chop
end
end
def write_message_0(src)
prev = @written_bytes
each_crlf_line(src) do |line|
write0 dot_stuff(line)
end
@written_bytes - prev
end
#
# Write
#
def write_message(src)
LOG "writing message from #{src.class}"
LOG_off()
len = writing {
using_each_crlf_line {
write_message_0 src
}
}
LOG_on()
LOG "wrote #{len} bytes"
len
end
def write_message_by_block(&block)
LOG 'writing message from block'
LOG_off()
len = writing {
using_each_crlf_line {
begin
block.call(WriteAdapter.new(self, :write_message_0))
rescue LocalJumpError
# allow `break' from writer block
end
}
}
LOG_on()
LOG "wrote #{len} bytes"
len
end
private
def dot_stuff(s)
s.sub(/\A\./, '..')
end
def using_each_crlf_line
@wbuf = ''
yield
if not @wbuf.empty? # unterminated last line
write0 dot_stuff(@wbuf.chomp) + "\r\n"
elsif @written_bytes == 0 # empty src
write0 "\r\n"
end
write0 ".\r\n"
@wbuf = nil
end
def each_crlf_line(src)
buffer_filling(@wbuf, src) do
while line = @wbuf.slice!(/\A[^\r\n]*(?:\n|\r(?:\n|(?!\z)))/)
yield line.chomp("\n") + "\r\n"
end
end
end
def buffer_filling(buf, src)
case src
when String # for speeding up.
0.step(src.size - 1, 1024) do |i|
buf << src[i, 1024]
yield
end
when File # for speeding up.
while s = src.read(1024)
buf << s
yield
end
else # generic reader
src.each do |str|
buf << str
yield if buf.size > 1024
end
yield unless buf.empty?
end
end
end
#
# The writer adapter class
#
class WriteAdapter
def initialize(socket, method)
@socket = socket
@method_id = method
end
def inspect
"#<#{self.class} socket=#{@socket.inspect}>"
end
def write(str)
@socket.__send__(@method_id, str)
end
alias print write
def <<(str)
write str
self
end
def puts(str = '')
write str.chomp("\n") + "\n"
end
def printf(*args)
write sprintf(*args)
end
end
class ReadAdapter #:nodoc: internal use only
def initialize(block)
@block = block
end
def inspect
"#<#{self.class}>"
end
def <<(str)
call_block(str, &@block) if @block
end
private
# This method is needed because @block must be called by yield,
# not Proc#call. You can see difference when using `break' in
# the block.
def call_block(str)
yield str
end
end
module NetPrivate #:nodoc: obsolete
Socket = ::Net::InternetMessageIO
end
end # module Net
| .. | |||||
| http | |||||
| ftp.rb | |||||
| http.rb | |||||
| https.rb | |||||
| imap.rb | |||||
| pop.rb | |||||
| protocol.rb | |||||
| smtp.rb | |||||
| telnet.rb |