=begin
= net/http.rb
Copyright (c) 1999-2002 Yukihiro Matsumoto
written & maintained by Minero Aoki <aamine@loveruby.net>
This file is derived from "http-access.rb".
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.
NOTE: You can find Japanese version of this document in
the doc/net directory of the standard ruby interpreter package.
$Id: http.rb,v 1.1.1.2 2003/05/14 13:58:49 melville Exp $
== What is this module?
This module provide your program the functions to access WWW
documents via HTTP, Hyper Text Transfer Protocol version 1.1.
For details of HTTP, refer [RFC2616]
((<URL:http://www.ietf.org/rfc/rfc2616.txt>)).
== Examples
=== Getting Document From Server
require 'net/http'
Net::HTTP.version_1_1 # declear to use 1.1 features.
Net::HTTP.start( 'some.www.server', 80 ) {|http|
response, body = http.get('/index.html')
print body
}
(shorter version)
require 'net/http'
Net::HTTP.get_print 'some.www.server', '/index.html'
=== Posting Form Data
require 'net/http'
Net::HTTP.version_1_1 # declear to use 1.1 features.
Net::HTTP.start( 'some.www.server', 80 ) {|http|
response, body = http.post( '/cgi-bin/any.rhtml',
'querytype=subject&target=ruby' )
}
=== Accessing via Proxy
Net::HTTP.Proxy() creates http proxy class. It has same
methods of Net::HTTP but its instances always connect to
proxy, instead of given host.
require 'net/http'
Net::HTTP.version_1_1 # declear to use 1.1 features.
$proxy_addr = 'your.proxy.addr'
$proxy_port = 8080
:
Net::HTTP::Proxy($proxy_addr, $proxy_port).start( 'some.www.server' ) {|http|
# always connect to your.proxy.addr:8080
:
}
Since Net::HTTP.Proxy() returns Net::HTTP itself when $proxy_addr is nil,
there's no need to change code if there's proxy or not.
=== Redirect
require 'net/http'
Net::HTTP.version_1_1 # declear to use 1.1 features.
host = 'www.ruby-lang.org'
path = '/'
begin
Net::HTTP.start( host, 80 ) {|http|
response , = http.get(path)
print response.body
}
rescue Net::ProtoRetriableError => err
if m = %r<http://([^/]+)>.match( err.response['location'] ) then
host = m[1].strip
path = m.post_match
retry
end
end
NOTE: This code is using ad-hoc way to extract host name, but in future
URI class will be included in ruby standard library.
=== Basic Authentication
require 'net/http'
Net::HTTP.version_1_1 # declear to use 1.1 features.
Net::HTTP.start( 'auth.some.domain' ) {|http|
response, body = http.get( '/need-auth.cgi',
'Authorization' => 'Basic ' + ["#{account}:#{password}"].pack('m').strip )
print body
}
In version 1.2 (Ruby 1.7 or later), you can write like this:
require 'net/http'
Net::HTTP.version_1_2 # declear to use 1.2 features.
req = Net::HTTP::Get.new('/need-auth.cgi')
req.basic_auth 'account', 'password'
Net::HTTP.start( 'auth.some.domain' ) {|http|
response = http.request(req)
print response.body
}
== Switching Net::HTTP versions
You can use old Net::HTTP (in Ruby 1.6) features by calling
HTTP.version_1_1. And calling Net::HTTP.version_1_2 allows
you to use 1.2 features again.
# example
Net::HTTP.start {|http1| ...(http1 has 1.2 features)... }
Net::HTTP.version_1_1
Net::HTTP.start {|http2| ...(http2 has 1.1 features)... }
Net::HTTP.version_1_2
Net::HTTP.start {|http3| ...(http3 has 1.2 features)... }
This function is not thread-safe.
== class Net::HTTP
=== Class Methods
: new( address, port = 80, proxy_addr = nil, proxy_port = nil )
creates a new Net::HTTP object.
If proxy_addr is given, creates an Net::HTTP object with proxy support.
: start( address, port = 80, proxy_addr = nil, proxy_port = nil )
: start( address, port = 80, proxy_addr = nil, proxy_port = nil ) {|http| .... }
is equals to
Net::HTTP.new(address, port, proxy_addr, proxy_port).start(&block)
: get( address, path, port = 80 )
gets entity body from path and returns it.
return value is a String.
: get_print( address, path, port = 80 )
gets entity body from path and output it to $stdout.
: Proxy( address, port = 80 )
creates a HTTP proxy class.
Arguments are address/port of proxy host.
You can replace HTTP class with created proxy class.
If ADDRESS is nil, this method returns self (Net::HTTP).
# example
proxy_class = Net::HTTP::Proxy( 'proxy.foo.org', 8080 )
:
proxy_class.start( 'www.ruby-lang.org' ) {|http|
# connecting proxy.foo.org:8080
:
}
: proxy_class?
If self is HTTP, false.
If self is a class which was created by HTTP::Proxy(), true.
: port
default HTTP port (80).
=== Instance Methods
: start
: start {|http| .... }
creates a new Net::HTTP object and starts HTTP session.
When this method is called with block, gives a HTTP object to block
and close the HTTP session after block call finished.
: active?
true if HTTP session is started.
: address
the address to connect
: port
the port number to connect
: open_timeout
: open_timeout=(n)
seconds to wait until connection is opened.
If HTTP object cannot open a conection in this seconds,
it raises TimeoutError exception.
: read_timeout
: read_timeout=(n)
seconds to wait until reading one block (by one read(1) call).
If HTTP object cannot open a conection in this seconds,
it raises TimeoutError exception.
: finish
finishes HTTP session.
If HTTP session had not started, raises an IOError.
: proxy?
true if self is a HTTP proxy class
: proxy_address
address of proxy host. If self does not use a proxy, nil.
: proxy_port
port number of proxy host. If self does not use a proxy, nil.
: get( path, header = nil )
: get( path, header = nil ) {|str| .... }
gets data from PATH on the connecting host.
HEADER must be a Hash like { 'Accept' => '*/*', ... }.
In version 1.1, this method returns a pair of objects,
a Net::HTTPResponse object and entity body string.
In version 1.2, this method returns a Net::HTTPResponse
object.
If called with block, gives entity body string to the block
little by little.
In version 1.1, this method might raises exception for also
3xx (redirect). On the case you can get a HTTPResponse object
by "anException.response".
In version 1.2, this method never raises exception.
# version 1.1 (bundled with Ruby 1.6)
response, body = http.get( '/index.html' )
# version 1.2 (bundled with Ruby 1.7 or later)
response = http.get( '/index.html' )
# compatible in both version
response , = http.get( '/index.html' )
response.body
# using block
File.open( 'save.txt', 'w' ) {|f|
http.get( '/~foo/', nil ) do |str|
f.write str
end
}
: head( path, header = nil )
gets only header from PATH on the connecting host.
HEADER is a Hash like { 'Accept' => '*/*', ... }.
This method returns a Net::HTTPResponse object.
In version 1.1, this method might raises exception for also
3xx (redirect). On the case you can get a HTTPResponse object
by "anException.response".
In version 1.2, this method never raises exception.
response = nil
Net::HTTP.start( 'some.www.server', 80 ) {|http|
response = http.head( '/index.html' )
}
p response['content-type']
: post( path, data, header = nil )
: post( path, data, header = nil ) {|str| .... }
posts DATA (must be String) to PATH. HEADER must be a Hash
like { 'Accept' => '*/*', ... }.
In version 1.1, this method returns a pair of objects, a
Net::HTTPResponse object and an entity body string.
In version 1.2, this method returns a Net::HTTPReponse object.
If called with block, gives a part of entity body string.
In version 1.1, this method might raises exception for also
3xx (redirect). On the case you can get a HTTPResponse object
by "anException.response".
In version 1.2, this method never raises exception.
# version 1.1
response, body = http.post( '/cgi-bin/search.rb', 'query=subject&target=ruby' )
# version 1.2
response = http.post( '/cgi-bin/search.rb', 'query=subject&target=ruby' )
# compatible in both version
response , = http.post( '/cgi-bin/search.rb', 'query=subject&target=ruby' )
# using block
File.open( 'save.html', 'w' ) {|f|
http.post( '/cgi-bin/search.rb',
'query=subject&target=ruby' ) do |str|
f.write str
end
}
: request_get( path, header = nil )
: request_get( path, header = nil ) {|response| .... }
gets entity from PATH. This method returns a HTTPResponse object.
When called with block, keep connection while block is executed
and gives a HTTPResponse object to the block.
This method never raises Net::* exceptions.
# example
response = http.request_get( '/index.html' )
p response['content-type']
puts response.body # body is already read
# using block
http.request_get( '/index.html' ) {|response|
p response['content-type']
response.read_body do |str| # read body now
print str
end
}
: request_post( path, data, header = nil )
: request_post( path, data, header = nil ) {|response| .... }
posts data to PATH. This method returns a HTTPResponse object.
When called with block, gives a HTTPResponse object to the block
before reading entity body, with keeping connection.
This method never raises Net::* exceptions.
# example
response = http.post2( '/cgi-bin/nice.rb', 'datadatadata...' )
p response.status
puts response.body # body is already read
# using block
http.post2( '/cgi-bin/nice.rb', 'datadatadata...' ) {|response|
p response.status
p response['content-type']
response.read_body do |str| # read body now
print str
end
}
== class Net::HTTPResponse
HTTP response class. This class wraps response header and entity.
All arguments named KEY is case-insensitive.
=== Instance Methods
: self[ key ]
returns the header field corresponding to the case-insensitive key.
For example, a key of "Content-Type" might return "text/html".
A key of "Content-Length" might do "2045".
More than one fields which has same names are joined with ','.
: self[ key ] = val
sets the header field corresponding to the case-insensitive key.
: key?( key )
true if key exists.
KEY is case insensitive.
: each {|name,value| .... }
iterates for each field name and value pair.
: canonical_each {|name,value| .... }
iterates for each "canonical" field name and value pair.
: code
HTTP result code string. For example, '302'.
: message
HTTP result message. For example, 'Not Found'.
: read_body( dest = '' )
gets entity body and write it into DEST using "<<" method.
If this method is called twice or more, nothing will be done
and returns first DEST.
: read_body {|str| .... }
gets entity body little by little and pass it to block.
: body
response body. If #read_body has been called, this method returns
arg of #read_body DEST. Else gets body as String and returns it.
=end
require 'net/protocol'
module Net
class HTTPBadResponse < StandardError; end
class HTTPHeaderSyntaxError < StandardError; end
class HTTP < Protocol
HTTPVersion = '1.1'
protocol_param :port, '80'
#
# for backward compatibility
#
@@newimpl = false
class << self
def version_1_2
@@newimpl = true
end
def version_1_1
@@newimpl = false
end
def is_version_1_2?
@@newimpl
end
private
def setimplversion( obj )
f = @@newimpl
obj.instance_eval { @newimpl = f }
end
end
#
# short cut methods
#
def HTTP.get( addr, path, port = nil )
req = Get.new( path )
resp = nil
new( addr, port || HTTP.port ).start {|http|
resp = http.request( req )
}
resp.body
end
def HTTP.get_print( addr, path, port = nil )
new( addr, port || HTTP.port ).start {|http|
http.get path, nil, $stdout
}
nil
end
#
# constructors
#
class << self
def start( address, port = nil, p_addr = nil, p_port = nil, &block )
new( address, port, p_addr, p_port ).start( &block )
end
alias newobj new
def new( address, port = nil, p_addr = nil, p_port = nil )
obj = Proxy(p_addr, p_port).newobj(address, port)
setimplversion obj
obj
end
end
def initialize( addr, port = nil )
super
@curr_http_version = HTTPVersion
@seems_1_0_server = false
end
#
# connection
#
private
def do_start
conn_socket
end
def do_finish
disconn_socket
end
#
# proxy
#
public
# without proxy
@is_proxy_class = false
@proxy_addr = nil
@proxy_port = nil
class << self
def Proxy( p_addr, p_port = nil )
p_addr or return self
p_port ||= port()
mod = ProxyDelta
proxyclass = Class.new(self)
proxyclass.module_eval {
include mod
# with proxy
@is_proxy_class = true
@proxy_address = p_addr
@proxy_port = p_port
}
proxyclass
end
def proxy_class?
@is_proxy_class
end
attr_reader :proxy_address
attr_reader :proxy_port
end
def proxy?
type.proxy_class?
end
def proxy_address
type.proxy_address
end
def proxy_port
type.proxy_port
end
alias proxyaddr proxy_address
alias proxyport proxy_port
private
# without proxy
def conn_address
address
end
def conn_port
port
end
def edit_path( path )
path
end
module ProxyDelta
private
# with proxy
def conn_address
proxy_address
end
def conn_port
proxy_port
end
def edit_path( path )
'http://' + addr_port() + path
end
end
#
# http operations
#
public
def get( path, initheader = nil, dest = nil, &block )
res = nil
request( Get.new(path,initheader) ) {|res|
res.read_body dest, &block
}
unless @newimpl then
res.value
return res, res.body
end
res
end
def head( path, initheader = nil )
res = request( Head.new(path,initheader) )
@newimpl or res.value
res
end
def post( path, data, initheader = nil, dest = nil, &block )
res = nil
request( Post.new(path,initheader), data ) {|res|
res.read_body dest, &block
}
unless @newimpl then
res.value
return res, res.body
end
res
end
def put( path, data, initheader = nil )
res = request( Put.new(path,initheader), data )
@newimpl or res.value
res
end
def request_get( path, initheader = nil, &block )
request Get.new(path,initheader), &block
end
def request_head( path, initheader = nil, &block )
request Head.new(path,initheader), &block
end
def request_post( path, data, initheader = nil, &block )
request Post.new(path,initheader), data, &block
end
def request_put( path, data, initheader = nil, &block )
request Put.new(path,initheader), data, &block
end
alias get2 request_get
alias head2 request_head
alias post2 request_post
alias put2 request_put
def send_request( name, path, body = nil, header = nil )
r = HTTPGenericRequest.new( name, (body ? true : false), true,
path, header )
request r, body
end
def request( req, body = nil, &block )
unless active? then
start {
req['connection'] = 'close'
return request(req, body, &block)
}
end
begin_transport(req)
req.__send__(:exec,
@socket, @curr_http_version, edit_path(req.path), body)
begin
res = HTTPResponse.read_new(@socket, req.response_body_permitted?)
end while ContinueCode === res
yield res if block_given?
end_transport(req, res)
res
end
private
def begin_transport( req )
if @socket.closed? then
reconn_socket
end
if not req.body_exist? or @seems_1_0_server then
req['connection'] = 'close'
end
req['host'] ||= addr_port()
end
def end_transport( req, res )
res.__send__ :terminate
@curr_http_version = res.http_version
if not res.body then
@socket.close
elsif keep_alive? req, res then
D 'Conn keep-alive'
if @socket.closed? then # (only) read stream had been closed
D 'Conn (but seems 1.0 server)'
@seems_1_0_server = true
@socket.close
end
else
D 'Conn close'
@socket.close
end
end
def keep_alive?( req, res )
/close/i === req['connection'].to_s and return false
@seems_1_0_server and return false
/keep-alive/i === res['connection'].to_s and return true
/close/i === res['connection'].to_s and return false
/keep-alive/i === res['proxy-connection'].to_s and return true
/close/i === res['proxy-connection'].to_s and return false
@curr_http_version == '1.1' and return true
false
end
#
# utils
#
private
def addr_port
address + (port == HTTP.port ? '' : ":#{port}")
end
def D( msg )
if @dout then
@dout << msg
@dout << "\n"
end
end
end
HTTPSession = HTTP
class Code
def http_mkchild( bodyexist = nil )
c = mkchild(nil)
be = if bodyexist.nil? then @body_exist else bodyexist end
c.instance_eval { @body_exist = be }
c
end
def body_exist?
@body_exist
end
end
HTTPInformationCode = InformationCode.http_mkchild( false )
HTTPSuccessCode = SuccessCode .http_mkchild( true )
HTTPRedirectionCode = RetriableCode .http_mkchild( true )
HTTPRetriableCode = HTTPRedirectionCode
HTTPClientErrorCode = FatalErrorCode .http_mkchild( true )
HTTPFatalErrorCode = HTTPClientErrorCode
HTTPServerErrorCode = ServerErrorCode.http_mkchild( true )
HTTPSwitchProtocol = HTTPInformationCode.http_mkchild
HTTPOK = HTTPSuccessCode.http_mkchild
HTTPCreated = HTTPSuccessCode.http_mkchild
HTTPAccepted = HTTPSuccessCode.http_mkchild
HTTPNonAuthoritativeInformation = HTTPSuccessCode.http_mkchild
HTTPNoContent = HTTPSuccessCode.http_mkchild( false )
HTTPResetContent = HTTPSuccessCode.http_mkchild( false )
HTTPPartialContent = HTTPSuccessCode.http_mkchild
HTTPMultipleChoice = HTTPRedirectionCode.http_mkchild
HTTPMovedPermanently = HTTPRedirectionCode.http_mkchild
HTTPMovedTemporarily = HTTPRedirectionCode.http_mkchild
HTTPNotModified = HTTPRedirectionCode.http_mkchild( false )
HTTPUseProxy = HTTPRedirectionCode.http_mkchild( false )
HTTPBadRequest = HTTPClientErrorCode.http_mkchild
HTTPUnauthorized = HTTPClientErrorCode.http_mkchild
HTTPPaymentRequired = HTTPClientErrorCode.http_mkchild
HTTPForbidden = HTTPClientErrorCode.http_mkchild
HTTPNotFound = HTTPClientErrorCode.http_mkchild
HTTPMethodNotAllowed = HTTPClientErrorCode.http_mkchild
HTTPNotAcceptable = HTTPClientErrorCode.http_mkchild
HTTPProxyAuthenticationRequired = HTTPClientErrorCode.http_mkchild
HTTPRequestTimeOut = HTTPClientErrorCode.http_mkchild
HTTPConflict = HTTPClientErrorCode.http_mkchild
HTTPGone = HTTPClientErrorCode.http_mkchild
HTTPLengthRequired = HTTPClientErrorCode.http_mkchild
HTTPPreconditionFailed = HTTPClientErrorCode.http_mkchild
HTTPRequestEntityTooLarge = HTTPClientErrorCode.http_mkchild
HTTPRequestURITooLarge = HTTPClientErrorCode.http_mkchild
HTTPUnsupportedMediaType = HTTPClientErrorCode.http_mkchild
HTTPNotImplemented = HTTPServerErrorCode.http_mkchild
HTTPBadGateway = HTTPServerErrorCode.http_mkchild
HTTPServiceUnavailable = HTTPServerErrorCode.http_mkchild
HTTPGatewayTimeOut = HTTPServerErrorCode.http_mkchild
HTTPVersionNotSupported = HTTPServerErrorCode.http_mkchild
###
### header
###
module HTTPHeader
def size
@header.size
end
alias length size
def []( key )
@header[ key.downcase ]
end
def []=( key, val )
@header[ key.downcase ] = val
end
def each_header( &block )
@header.each( &block )
end
alias each each_header
def each_key( &block )
@header.each_key( &block )
end
def each_value( &block )
@header.each_value( &block )
end
def delete( key )
@header.delete key.downcase
end
def key?( key )
@header.key? key.downcase
end
def to_hash
@header.dup
end
def canonical_each
@header.each do |k,v|
yield canonical(k), v
end
end
def canonical( k )
k.split('-').collect {|i| i.capitalize }.join('-')
end
def range
s = @header['range']
s or return nil
arr = []
s.split(',').each do |spec|
m = /bytes\s*=\s*(\d+)?\s*-\s*(\d+)?/i.match( spec )
m or raise HTTPHeaderSyntaxError, "wrong Range: #{spec}"
d1 = m[1].to_i
d2 = m[2].to_i
if m[1] and m[2] then arr.push( d1..d2 )
elsif m[1] then arr.push( d1..-1 )
elsif m[2] then arr.push( -d2..-1 )
else
raise HTTPHeaderSyntaxError, 'range is not specified'
end
end
return arr
end
def range=( r, fin = nil )
r = (r ... r + fin) if fin
case r
when Numeric
s = r > 0 ? "0-#{r - 1}" : "-#{-r}"
when Range
first = r.first
last = r.last
if r.exclude_end? then
last -= 1
end
if last == -1 then
s = first > 0 ? "#{first}-" : "-#{-first}"
else
first >= 0 or raise HTTPHeaderSyntaxError, 'range.first is negative'
last > 0 or raise HTTPHeaderSyntaxError, 'range.last is negative'
first < last or raise HTTPHeaderSyntaxError, 'must be .first < .last'
s = "#{first}-#{last}"
end
else
raise TypeError, 'Range/Integer is required'
end
@header['range'] = "bytes=#{s}"
r
end
alias set_range range=
def content_length
s = @header['content-length']
s or return nil
m = /\d+/.match(s)
m or raise HTTPHeaderSyntaxError, 'wrong Content-Length format'
m[0].to_i
end
def chunked?
s = @header['transfer-encoding']
(s and /(?:\A|[^\-\w])chunked(?:[^\-\w]|\z)/i === s) ? true : false
end
def content_range
s = @header['content-range']
s or return nil
m = %r<bytes\s+(\d+)-(\d+)/(?:\d+|\*)>i.match( s )
m or raise HTTPHeaderSyntaxError, 'wrong Content-Range format'
m[1].to_i .. m[2].to_i + 1
end
def range_length
r = content_range
r and r.length
end
def basic_auth( acc, pass )
@header['authorization'] = 'Basic ' + ["#{acc}:#{pass}"].pack('m').strip
end
end
###
### request
###
class HTTPGenericRequest
include HTTPHeader
def initialize( m, reqbody, resbody, path, initheader = nil )
@method = m
@request_has_body = reqbody
@response_has_body = resbody
@path = path
@response = nil
@header = tmp = {}
return unless initheader
initheader.each do |k,v|
key = k.downcase
if tmp.key? key then
$stderr.puts "WARNING: duplicated HTTP header: #{k}" if $VERBOSE
end
tmp[ key ] = v.strip
end
tmp['accept'] ||= '*/*'
end
attr_reader :method
attr_reader :path
attr_reader :response
def inspect
"\#<#{type}>"
end
def request_body_permitted?
@request_has_body
end
def response_body_permitted?
@response_has_body
end
alias body_exist? response_body_permitted?
private
#
# write
#
def exec( sock, ver, path, body )
if body then
raise ArgumentError, 'HTTP request body is not premitted'\
unless request_body_permitted?
send_request_with_body sock, ver, path, body
else
request sock, ver, path
end
end
def send_request_with_body( sock, ver, path, body )
if block_given? then
ac = Accumulator.new
yield ac # must be yield, DO NOT USE block.call
data = ac.terminate
else
data = body
end
@header['content-length'] = data.size.to_s
@header.delete 'transfer-encoding'
unless @header['content-type'] then
$stderr.puts 'Content-Type did not set; using application/x-www-form-urlencoded' if $VERBOSE
@header['content-type'] = 'application/x-www-form-urlencoded'
end
request sock, ver, path
sock.write data
end
def request( sock, ver, path )
sock.writeline sprintf('%s %s HTTP/%s', @method, path, ver)
canonical_each do |k,v|
sock.writeline k + ': ' + v
end
sock.writeline ''
end
end
class HTTPRequest < HTTPGenericRequest
def initialize( path, initheader = nil )
super type::METHOD,
type::REQUEST_HAS_BODY,
type::RESPONSE_HAS_BODY,
path, initheader
end
end
class HTTP
class Get < HTTPRequest
METHOD = 'GET'
REQUEST_HAS_BODY = false
RESPONSE_HAS_BODY = true
end
class Head < HTTPRequest
METHOD = 'HEAD'
REQUEST_HAS_BODY = false
RESPONSE_HAS_BODY = false
end
class Post < HTTPRequest
METHOD = 'POST'
REQUEST_HAS_BODY = true
RESPONSE_HAS_BODY = true
end
class Put < HTTPRequest
METHOD = 'PUT'
REQUEST_HAS_BODY = true
RESPONSE_HAS_BODY = true
end
end
###
### response
###
class HTTPResponse < Response
include HTTPHeader
CODE_CLASS_TO_OBJ = {
'1' => HTTPInformationCode,
'2' => HTTPSuccessCode,
'3' => HTTPRedirectionCode,
'4' => HTTPClientErrorCode,
'5' => HTTPServerErrorCode
}
CODE_TO_OBJ = {
'100' => ContinueCode,
'101' => HTTPSwitchProtocol,
'200' => HTTPOK,
'201' => HTTPCreated,
'202' => HTTPAccepted,
'203' => HTTPNonAuthoritativeInformation,
'204' => HTTPNoContent,
'205' => HTTPResetContent,
'206' => HTTPPartialContent,
'300' => HTTPMultipleChoice,
'301' => HTTPMovedPermanently,
'302' => HTTPMovedTemporarily,
'303' => HTTPMovedPermanently,
'304' => HTTPNotModified,
'305' => HTTPUseProxy,
'400' => HTTPBadRequest,
'401' => HTTPUnauthorized,
'402' => HTTPPaymentRequired,
'403' => HTTPForbidden,
'404' => HTTPNotFound,
'405' => HTTPMethodNotAllowed,
'406' => HTTPNotAcceptable,
'407' => HTTPProxyAuthenticationRequired,
'408' => HTTPRequestTimeOut,
'409' => HTTPConflict,
'410' => HTTPGone,
'411' => HTTPFatalErrorCode,
'412' => HTTPPreconditionFailed,
'413' => HTTPRequestEntityTooLarge,
'414' => HTTPRequestURITooLarge,
'415' => HTTPUnsupportedMediaType,
'500' => HTTPFatalErrorCode,
'501' => HTTPNotImplemented,
'502' => HTTPBadGateway,
'503' => HTTPServiceUnavailable,
'504' => HTTPGatewayTimeOut,
'505' => HTTPVersionNotSupported
}
class << self
def read_new( sock, hasbody )
httpv, code, msg = read_status(sock)
res = new(code, msg, sock, hasbody, httpv)
each_response_header(sock) do |k,v|
if res.key? k then
res[k] << ', ' << v
else
res[k] = v
end
end
res
end
private
def read_status( sock )
str = sock.readline
m = /\AHTTP(?:\/(\d+\.\d+))?\s+(\d\d\d)\s*(.*)\z/in.match( str )
m or raise HTTPBadResponse, "wrong status line: #{str}"
m.to_a[1,3]
end
def each_response_header( sock )
while true do
line = sock.readuntil( "\n", true ) # ignore EOF
line.sub!( /\s+\z/, '' ) # don't use chop!
break if line.empty?
m = /\A([^:]+):\s*/.match(line) or
raise HTTPBadResponse, 'wrong header line format'
yield m[1], m.post_match
end
end
end
def initialize( stat, msg, sock, be, hv )
code = CODE_TO_OBJ[stat] ||
CODE_CLASS_TO_OBJ[stat[0,1]] ||
UnknownCode
super code, stat, msg
@socket = sock
@body_exist = be
@http_version = hv
@header = {}
@body = nil
@read = false
end
attr_reader :http_version
def inspect
"#<#{type} #{code}>"
end
def value
SuccessCode === self or error!
end
#
# header (for backward compatibility)
#
def response
self
end
alias header response
alias read_header response
#
# body
#
def read_body( dest = nil, &block )
if @read then
(dest or block) and
raise IOError, "#{type}\#read_body called twice with argument"
return @body
end
to = procdest(dest, block)
stream_check
if @body_exist and code_type.body_exist? then
read_body_0 to
@body = to
else
@body = nil
end
@read = true
@body
end
alias body read_body
alias entity read_body
private
def terminate
read_body
end
def read_body_0( dest )
if chunked? then
read_chunked dest
else
clen = content_length
if clen then
@socket.read clen, dest, true # ignore EOF
else
clen = range_length
if clen then
@socket.read clen, dest
else
@socket.read_all dest
end
end
end
end
def read_chunked( dest )
len = nil
total = 0
while true do
line = @socket.readline
m = /[0-9a-fA-F]+/.match(line)
m or raise HTTPBadResponse, "wrong chunk size line: #{line}"
len = m[0].hex
break if len == 0
@socket.read len, dest; total += len
@socket.read 2 # \r\n
end
until @socket.readline.empty? do
;
end
end
def stream_check
@socket.closed? and raise IOError, 'try to read body out of block'
end
def procdest( dest, block )
if dest and block then
raise ArgumentError, 'both of arg and block are given for HTTP method'
end
if block then
ReadAdapter.new block
else
dest || ''
end
end
end
# for backward compatibility
module NetPrivate
HTTPResponse = ::Net::HTTPResponse
HTTPGenericRequest = ::Net::HTTPGenericRequest
HTTPRequest = ::Net::HTTPRequest
HTTPHeader = ::Net::HTTPHeader
end
HTTPResponceReceiver = HTTPResponse
end # module Net