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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.
#
# $Id$
require "webrick/httprequest"
require "webrick/httpresponse"
require "webrick/config"
require "stringio"
module WEBrick
module Config
CGI = HTTP.dup.update(
:ServerSoftware => ENV["SERVER_SOFTWARE"],
:RunOnCGI => true, # to detect if it runs on CGI.
:NPH => false # set true to run as NPH script.
)
end
class CGI
def initialize(*args)
config = args.shift || Hash.new
@config = default_config.dup.update(config)
@logger = @config[:Logger] || WEBrick::Log.new($stderr)
@options = args
end
def default_config
WEBrick::Config::CGI
end
def start(env=ENV, stdin=$stdin, stdout=$stdout)
sock = WEBrick::CGI::Socket.new(@config, env, stdin, stdout)
req = HTTPRequest.new(@config)
res = HTTPResponse.new(@config)
unless @config[:NPH]
def res.setup_header
@header["status"] ||= @status
super
end
def res.status_line
""
end
end
begin
req.parse(sock)
req.script_name = (env["SCRIPT_NAME"] || "").dup
if env["PATH_INFO"].nil? || env["PATH_INFO"].empty?
req.path_info = nil
else
req.path_info = env["PATH_INFO"].dup
end
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
res.send_response(sock)
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)
@env = env
@header_part = StringIO.new
@body_part = stdin
@out_port = stdout
@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
setup_header
rescue Exception => ex
raise Errno::EPIPE, "invalid CGI environment"
end
@header_part << CRLF
@header_part.rewind
end
def setup_header
req_line = ""
req_line << @env["REQUEST_METHOD"] << " "
req_line << @env["SCRIPT_NAME"]
req_line << @env["PATH_INFO"] if @env["PATH_INFO"]
if @env["QUERY_STRING"]
req_line << "?" << @env["QUERY_STRING"]
end
req_line << " " << @env["SERVER_PROTOCOL"]
@header_part << req_line << CRLF
add_header("CONTENT_TYPE", "Content-Type")
add_header("CONTENT_LENGTH", "Content-length")
@env.each_key do |name|
if /^HTTP_(.*)/ =~ name
add_header(name, $1.gsub(/_/, "-"))
end
end
end
def add_header(envname, hdrname)
if @env[envname] && !@env[envname].empty?
@header_part << hdrname << ": " << @env[envname] << CRLF
end
end
def input
@header_part.eof? ? @body_part : @header_part
end
public
def peeraddr
[nil, @remote_port, @remote_host, @remote_addr]
end
def addr
[nil, @server_port, @server_name, @server_addr]
end
def gets(eol=LF)
input.gets(eol)
end
def read(size=nil)
input.read(size)
end
def each
input.each{|line| yield(line) }
end
def <<(data)
@out_port << data
end
def cert
if pem = @env["SSL_SERVER_CERT"]
OpenSSL::X509::Certificate.new(pem) unless pem.empty?
end
end
def peer_cert
if pem = @env["SSL_CLIENT_CERT"]
OpenSSL::X509::Certificate.new(pem) unless pem.empty?
end
end
def peer_cert_chain
if @env["SSL_CLIENT_CERT_CHAIN_0"]
keys = @env.keys
certs = keys.sort.collect{|k|
if /^SSL_CLIENT_CERT_CHAIN_\d+$/ =~ k
if pem = @env[k]
OpenSSL::X509::Certificate.new(pem) unless pem.empty?
end
end
}
certs.compact
end
end
def cipher
if cipher = @env["SSL_CIPHER"]
[ cipher ]
end
end
end
end
end
|
