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文件
ClientLibrary
ConsoleClient
MobileLibrary
Server
contributors
psiphon
common
memory_test
server
testdata
transferstats
upstreamproxy
go-ntlm
README.md
auth_basic.go
auth_digest.go
auth_ntlm.go
http_authenticator.go
proxy_http.go
proxy_socks4.go
transport_proxy_auth.go
upstreamproxy.go
LookupIP.go
LookupIP_nobind.go
TCPConn.go
TCPConn_bind.go
TCPConn_nobind.go
UDPConn.go
UDPConn_bind.go
UDPConn_nobind.go
config.go
config_test.go
controller.go
controller_test.config.enc
controller_test.go
dataStore.go
dataStore_badger.go
dataStore_bolt.go
dataStore_files.go
dialParameters.go
dialParameters_test.go
feedback.go
feedback_test.config.enc
feedback_test.go
httpProxy.go
httpProxy_test.go
interrupt_dials_test.go
limitProtocols_test.go
meekConn.go
net.go
net_darwin.go
net_other.go
net_windows.go
notice.go
packetTunnelTransport.go
pprof.go
pprof_disabled.go
remoteServerList.go
remoteServerList_test.go
serverApi.go
socksProxy.go
splitTunnel.go
sshClientVersionPicker.go
tlsDialer.go
tunnel.go
upgradeDownload.go
userAgentPicker.go
userAgent_test.go
utils.go
vendor
.gitignore
.travis.yml
CLA-entity.md
CLA-individual.md
CONTRIBUTING.md
LICENSE
README.md
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http_authenticator.go 2.39 KB
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/*
* Copyright (c) 2015, Psiphon Inc.
* All rights reserved.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
package upstreamproxy
import (
"fmt"
"net/http"
"strings"
)
type HttpAuthState int
const (
HTTP_AUTH_STATE_UNCHALLENGED HttpAuthState = iota
HTTP_AUTH_STATE_CHALLENGED
HTTP_AUTH_STATE_FAILURE
HTTP_AUTH_STATE_SUCCESS
)
type HttpAuthenticator interface {
PreAuthenticate(req *http.Request) error
Authenticate(req *http.Request, resp *http.Response) error
IsConnectionBased() bool
IsComplete() bool
Reset()
}
func parseAuthChallenge(resp *http.Response) (map[string]string, error) {
challenges := make(map[string]string)
headers := resp.Header[http.CanonicalHeaderKey("proxy-authenticate")]
for _, val := range headers {
s := strings.SplitN(val, " ", 2)
if len(s) == 2 {
challenges[s[0]] = s[1]
}
if len(s) == 1 && s[0] != "" {
challenges[s[0]] = ""
}
}
if len(challenges) == 0 {
return nil, proxyError(fmt.Errorf("No valid challenges in the Proxy-Authenticate header"))
}
return challenges, nil
}
func NewHttpAuthenticator(resp *http.Response, username, password string) (HttpAuthenticator, error) {
challenges, err := parseAuthChallenge(resp)
if err != nil {
//Already wrapped in proxyError
return nil, err
}
// NTLM > Digest > Basic
if _, ok := challenges["NTLM"]; ok {
return newNTLMAuthenticator(username, password), nil
} else if _, ok := challenges["Digest"]; ok {
return newDigestAuthenticator(username, password), nil
} else if _, ok := challenges["Basic"]; ok {
return newBasicAuthenticator(username, password), nil
}
//Unsupported scheme
schemes := make([]string, 0, len(challenges))
for scheme := range challenges {
schemes = append(schemes, scheme)
}
return nil, proxyError(fmt.Errorf("Unsupported proxy authentication scheme in %v", schemes))
}
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lqinggang
psiphon-tunnel-core
psiphon-tunnel-core
v2.0.0

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