Class: TCPSocket
- Inherits:
-
Object
show all
- Defined in:
- lib/socksify.rb
Defined Under Namespace
Classes: SOCKSConnectionPeerAddress
Class Method Summary
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Instance Method Summary
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Constructor Details
#initialize(host = nil, port = 0, local_host = "0.0.0.0", local_port = 0) ⇒ TCPSocket
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# File 'lib/socksify.rb', line 136
def initialize(host=nil, port=0, local_host="0.0.0.0", local_port=0)
if host.is_a?(SOCKSConnectionPeerAddress)
socks_peer = host
socks_server = socks_peer.socks_server
socks_port = socks_peer.socks_port
socks_ignores = []
host = socks_peer.peer_host
else
socks_server = self.class.socks_server
socks_port = self.class.socks_port
socks_ignores = self.class.socks_ignores
end
if socks_server and socks_port and not socks_ignores.include?(host)
Socksify::debug_notice "Connecting to SOCKS server #{socks_server}:#{socks_port}"
initialize_tcp socks_server, socks_port
socks_authenticate unless @@socks_version =~ /^4/
if host
socks_connect(host, port)
end
else
Socksify::debug_notice "Connecting directly to #{host}:#{port}"
initialize_tcp host, port, local_host, local_port
Socksify::debug_debug "Connected to #{host}:#{port}"
end
end
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Class Method Details
.socks_ignores ⇒ Object
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# File 'lib/socksify.rb', line 114
def self.socks_ignores
@@socks_ignores ||= %w(localhost)
end
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.socks_ignores=(ignores) ⇒ Object
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# File 'lib/socksify.rb', line 117
def self.socks_ignores=(ignores)
@@socks_ignores = ignores
end
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.socks_port ⇒ Object
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# File 'lib/socksify.rb', line 108
def self.socks_port
@@socks_port ||= nil
end
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.socks_port=(port) ⇒ Object
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# File 'lib/socksify.rb', line 111
def self.socks_port=(port)
@@socks_port = port
end
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.socks_server ⇒ Object
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# File 'lib/socksify.rb', line 102
def self.socks_server
@@socks_server ||= nil
end
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.socks_server=(host) ⇒ Object
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# File 'lib/socksify.rb', line 105
def self.socks_server=(host)
@@socks_server = host
end
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.socks_version ⇒ Object
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# File 'lib/socksify.rb', line 96
def self.socks_version
(@@socks_version == "4a" or @@socks_version == "4") ? "\004" : "\005"
end
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.socks_version=(version) ⇒ Object
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# File 'lib/socksify.rb', line 99
def self.socks_version=(version)
@@socks_version = version.to_s
end
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Instance Method Details
#initialize_tcp ⇒ Object
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# File 'lib/socksify.rb', line 133
alias :initialize_tcp :initialize
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#socks_authenticate ⇒ Object
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# File 'lib/socksify.rb', line 166
def socks_authenticate
Socksify::debug_debug "Sending no authentication"
write "\005\001\000"
Socksify::debug_debug "Waiting for authentication reply"
auth_reply = recv(2)
if auth_reply[0..0] != "\004" and auth_reply[0..0] != "\005"
raise SOCKSError.new("SOCKS version #{auth_reply[0..0]} not supported")
end
if auth_reply[1..1] != "\000"
raise SOCKSError.new("SOCKS authentication method #{auth_reply[1..1]} neither requested nor supported")
end
end
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#socks_connect(host, port) ⇒ Object
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# File 'lib/socksify.rb', line 180
def socks_connect(host, port)
Socksify::debug_debug "Sending destination address"
write TCPSocket.socks_version
Socksify::debug_debug TCPSocket.socks_version.unpack "H*"
write "\001"
write "\000" if @@socks_version == "5"
write [port].pack('n') if @@socks_version =~ /^4/
if @@socks_version == "4"
host = Resolv::DNS.new.getaddress(host).to_s
end
Socksify::debug_debug host
if host =~ /^(\d+)\.(\d+)\.(\d+)\.(\d+)$/ write "\001" if @@socks_version == "5"
_ip = [$1.to_i,
$2.to_i,
$3.to_i,
$4.to_i
].pack('CCCC')
write _ip
elsif host =~ /^[:0-9a-f]+$/ raise "TCP/IPv6 over SOCKS is not yet supported (inet_pton missing in Ruby & not supported by Tor"
write "\004"
else if @@socks_version == "5"
write "\003" + [host.size].pack('C') + host
else
write "\000\000\000\001"
write "\007\000"
Socksify::debug_notice host
write host
write "\000"
end
end
write [port].pack('n') if @@socks_version == "5"
socks_receive_reply
Socksify::debug_notice "Connected to #{host}:#{port} over SOCKS"
end
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#socks_receive_reply ⇒ Object
returns [bind_addr: String, bind_port: Fixnum]
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# File 'lib/socksify.rb', line 221
def socks_receive_reply
Socksify::debug_debug "Waiting for SOCKS reply"
if @@socks_version == "5"
connect_reply = recv(4)
Socksify::debug_debug connect_reply.unpack "H*"
if connect_reply[0..0] != "\005"
raise SOCKSError.new("SOCKS version #{connect_reply[0..0]} is not 5")
end
if connect_reply[1..1] != "\000"
raise SOCKSError.for_response_code(connect_reply.bytes.to_a[1])
end
Socksify::debug_debug "Waiting for bind_addr"
bind_addr_len = case connect_reply[3..3]
when "\001"
4
when "\003"
recv(1).bytes.first
when "\004"
16
else
raise SOCKSError.for_response_code(connect_reply.bytes.to_a[3])
end
bind_addr_s = recv(bind_addr_len)
bind_addr = case connect_reply[3..3]
when "\001"
bind_addr_s.bytes.to_a.join('.')
when "\003"
bind_addr_s
when "\004" i = 0
ip6 = ""
bind_addr_s.each_byte do |b|
if i > 0 and i % 2 == 0
ip6 += ":"
end
i += 1
ip6 += b.to_s(16).rjust(2, '0')
end
end
bind_port = recv(bind_addr_len + 2)
[bind_addr, bind_port.unpack('n')]
else
connect_reply = recv(8)
unless connect_reply[0] == "\000" and connect_reply[1] == "\x5A"
Socksify::debug_debug connect_reply.unpack 'H'
raise SOCKSError.new("Failed while connecting througth socks")
end
end
end
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