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#
# cgi.rb -- Yet another CGI library
#
# Author: IPR -- Internet Programming with Ruby -- writers
# Copyright (c) 2003 Internet Programming with Ruby writers. All rights
# reserved.
#
# $Id: cgi.rb 11708 2007-02-12 23:01:19Z shyouhei $
require "webrick/httprequest"
require "webrick/httpresponse"
require "webrick/config"
require "stringio"
module WEBrick
class CGI
CGIError = Class.new(StandardError)
attr_reader :config, :logger
def initialize(*args)
if defined?(MOD_RUBY)
unless ENV.has_key?("GATEWAY_INTERFACE")
Apache.request.setup_cgi_env
end
end
if %r{HTTP/(\d+\.\d+)} =~ ENV["SERVER_PROTOCOL"]
httpv = $1
end
@config = WEBrick::Config::HTTP.dup.update(
:ServerSoftware => ENV["SERVER_SOFTWARE"] || "null",
:HTTPVersion => HTTPVersion.new(httpv || "1.0"),
:RunOnCGI => true, # to detect if it runs on CGI.
:NPH => false # set true to run as NPH script.
)
if config = args.shift
@config.update(config)
end
@config[:Logger] ||= WEBrick::BasicLog.new($stderr)
@logger = @config[:Logger]
@options = args
end
def [](key)
@config[key]
end
def start(env=ENV, stdin=$stdin, stdout=$stdout)
sock = WEBrick::CGI::Socket.new(@config, env, stdin, stdout)
req = HTTPRequest.new(@config)
res = HTTPResponse.new(@config)
unless @config[:NPH] or defined?(MOD_RUBY)
def res.setup_header
unless @header["status"]
phrase = HTTPStatus::reason_phrase(@status)
@header["status"] = "#{@status} #{phrase}"
end
super
end
def res.status_line
""
end
end
begin
req.parse(sock)
req.script_name = (env["SCRIPT_NAME"] || File.expand_path($0)).dup
req.path_info = (env["PATH_INFO"] || "").dup
req.query_string = env["QUERY_STRING"]
req.user = env["REMOTE_USER"]
res.request_method = req.request_method
res.request_uri = req.request_uri
res.request_http_version = req.http_version
res.keep_alive = req.keep_alive?
self.service(req, res)
rescue HTTPStatus::Error => ex
res.set_error(ex)
rescue HTTPStatus::Status => ex
res.status = ex.code
rescue Exception => ex
@logger.error(ex)
res.set_error(ex, true)
ensure
req.fixup
if defined?(MOD_RUBY)
res.setup_header
Apache.request.status_line = "#{res.status} #{res.reason_phrase}"
Apache.request.status = res.status
table = Apache.request.headers_out
res.header.each{|key, val|
case key
when /^content-encoding$/i
Apache::request.content_encoding = val
when /^content-type$/i
Apache::request.content_type = val
else
table[key] = val.to_s
end
}
res.cookies.each{|cookie|
table.add("Set-Cookie", cookie.to_s)
}
Apache.request.send_http_header
res.send_body(sock)
else
res.send_response(sock)
end
end
end
def service(req, res)
method_name = "do_" + req.request_method.gsub(/-/, "_")
if respond_to?(method_name)
__send__(method_name, req, res)
else
raise HTTPStatus::MethodNotAllowed,
"unsupported method `#{req.request_method}'."
end
end
class Socket
include Enumerable
private
def initialize(config, env, stdin, stdout)
@config = config
@env = env
@header_part = StringIO.new
@body_part = stdin
@out_port = stdout
@out_port.binmode
@server_addr = @env["SERVER_ADDR"] || "0.0.0.0"
@server_name = @env["SERVER_NAME"]
@server_port = @env["SERVER_PORT"]
@remote_addr = @env["REMOTE_ADDR"]
@remote_host = @env["REMOTE_HOST"] || @remote_addr
@remote_port = @env["REMOTE_PORT"] || 0
begin
@header_part << request_line << CRLF
setup_header
@header_part << CRLF
@header_part.rewind
rescue Exception => ex
raise CGIError, "invalid CGI environment"
end
end
def request_line
meth = @env["REQUEST_METHOD"] || "GET"
unless url = @env["REQUEST_URI"]
url = (@env["SCRIPT_NAME"] || File.expand_path($0)).dup
url << @env["PATH_INFO"].to_s
url = WEBrick::HTTPUtils.escape_path(url)
if query_string = @env["QUERY_STRING"]
unless query_string.empty?
url << "?" << query_string
end
end
end
# we cannot get real HTTP version of client ;)
httpv = @config[:HTTPVersion]
return "#{meth} #{url} HTTP/#{httpv}"
end
def setup_header
add_header("CONTENT_TYPE", "Content-Type")
add_header("CONTENT_LENGTH", "Content-length")
@env.each_key{|name|
if /^HTTP_(.*)/ =~ name
add_header(name, $1.gsub(/_/, "-"))
end
}
end
def add_header(envname, hdrname)
if value = @env[envname]
unless value.empty?
@header_part << hdrname << ": " << value << CRLF
end
end
end
def input
@header_part.eof? ? @body_part : @header_part
end
public
def peeraddr
[nil, @remote_port, @remote_host, @remote_addr]
end
def addr
[nil, @server_port, @server_name, @server_addr]
end
def gets(eol=LF)
input.gets(eol)
end
def read(size=nil)
input.read(size)
end
def each
input.each{|line| yield(line) }
end
def <<(data)
@out_port << data
end
def cert
return nil unless defined?(OpenSSL)
if pem = @env["SSL_SERVER_CERT"]
OpenSSL::X509::Certificate.new(pem) unless pem.empty?
end
end
def peer_cert
return nil unless defined?(OpenSSL)
if pem = @env["SSL_CLIENT_CERT"]
OpenSSL::X509::Certificate.new(pem) unless pem.empty?
end
end
def peer_cert_chain
return nil unless defined?(OpenSSL)
if @env["SSL_CLIENT_CERT_CHAIN_0"]
keys = @env.keys
certs = keys.sort.collect{|k|
if /^SSL_CLIENT_CERT_CHAIN_\d+$/ =~ k
if pem = @env[k]
OpenSSL::X509::Certificate.new(pem) unless pem.empty?
end
end
}
certs.compact
end
end
def cipher
return nil unless defined?(OpenSSL)
if cipher = @env["SSL_CIPHER"]
ret = [ cipher ]
ret << @env["SSL_PROTOCOL"]
ret << @env["SSL_CIPHER_USEKEYSIZE"]
ret << @env["SSL_CIPHER_ALGKEYSIZE"]
ret
end
end
end
end
end