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95 lines
3.3 KiB
Ruby
95 lines
3.3 KiB
Ruby
#
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# httpauth.rb -- HTTP access authentication
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#
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# Author: IPR -- Internet Programming with Ruby -- writers
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# Copyright (c) 2000, 2001 TAKAHASHI Masayoshi, GOTOU Yuuzou
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# Copyright (c) 2002 Internet Programming with Ruby writers. All rights
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# reserved.
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#
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# $IPR: httpauth.rb,v 1.14 2003/07/22 19:20:42 gotoyuzo Exp $
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require 'webrick/httpauth/basicauth'
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require 'webrick/httpauth/digestauth'
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require 'webrick/httpauth/htpasswd'
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require 'webrick/httpauth/htdigest'
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require 'webrick/httpauth/htgroup'
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module WEBrick
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##
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# HTTPAuth provides both basic and digest authentication.
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#
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# To enable authentication for requests in WEBrick you will need a user
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# database and an authenticator. To start, here's an Htpasswd database for
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# use with a DigestAuth authenticator:
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#
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# config = { :Realm => 'DigestAuth example realm' }
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#
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# htpasswd = WEBrick::HTTPAuth::Htpasswd.new 'my_password_file'
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# htpasswd.auth_type = WEBrick::HTTPAuth::DigestAuth
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# htpasswd.set_passwd config[:Realm], 'username', 'password'
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# htpasswd.flush
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#
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# The +:Realm+ is used to provide different access to different groups
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# across several resources on a server. Typically you'll need only one
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# realm for a server.
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#
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# This database can be used to create an authenticator:
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#
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# config[:UserDB] = htpasswd
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#
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# digest_auth = WEBrick::HTTPAuth::DigestAuth.new config
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#
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# To authenticate a request call #authenticate with a request and response
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# object in a servlet:
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#
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# def do_GET req, res
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# @authenticator.authenticate req, res
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# end
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#
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# For digest authentication the authenticator must not be created every
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# request, it must be passed in as an option via WEBrick::HTTPServer#mount.
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module HTTPAuth
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module_function
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def _basic_auth(req, res, realm, req_field, res_field, err_type,
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block) # :nodoc:
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user = pass = nil
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if /^Basic\s+(.*)/o =~ req[req_field]
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userpass = $1
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user, pass = userpass.unpack("m*")[0].split(":", 2)
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end
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if block.call(user, pass)
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req.user = user
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return
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end
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res[res_field] = "Basic realm=\"#{realm}\""
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raise err_type
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end
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##
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# Simple wrapper for providing basic authentication for a request. When
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# called with a request +req+, response +res+, authentication +realm+ and
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# +block+ the block will be called with a +username+ and +password+. If
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# the block returns true the request is allowed to continue, otherwise an
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# HTTPStatus::Unauthorized error is raised.
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def basic_auth(req, res, realm, &block) # :yield: username, password
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_basic_auth(req, res, realm, "Authorization", "WWW-Authenticate",
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HTTPStatus::Unauthorized, block)
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end
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##
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# Simple wrapper for providing basic authentication for a proxied request.
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# When called with a request +req+, response +res+, authentication +realm+
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# and +block+ the block will be called with a +username+ and +password+.
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# If the block returns true the request is allowed to continue, otherwise
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# an HTTPStatus::ProxyAuthenticationRequired error is raised.
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def proxy_basic_auth(req, res, realm, &block) # :yield: username, password
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_basic_auth(req, res, realm, "Proxy-Authorization", "Proxy-Authenticate",
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HTTPStatus::ProxyAuthenticationRequired, block)
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end
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end
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end
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