proxy: ask for pb_proxy scope, set authorization header if enabled

This commit is contained in:
Jens Langhammer 2020-09-30 11:49:06 +02:00
parent 59dbc15be7
commit 74f8b68af8
6 changed files with 101 additions and 74 deletions

View File

@ -29,12 +29,16 @@ require (
github.com/recws-org/recws v1.2.1
github.com/sirupsen/logrus v1.7.0
github.com/spf13/afero v1.4.0 // indirect
github.com/spf13/cast v1.3.1 // indirect
github.com/spf13/jwalterweatherman v1.1.0 // indirect
github.com/spf13/pflag v1.0.5 // indirect
github.com/spf13/viper v1.7.1 // indirect
github.com/stretchr/testify v1.6.1
go.mongodb.org/mongo-driver v1.4.1 // indirect
golang.org/x/crypto v0.0.0-20200728195943-123391ffb6de // indirect
golang.org/x/net v0.0.0-20200904194848-62affa334b73 // indirect
golang.org/x/sys v0.0.0-20200922070232-aee5d888a860 // indirect
golang.org/x/tools v0.0.0-20200923053713-ba800b16d873 // indirect
golang.org/x/net v0.0.0-20200927032502-5d4f70055728 // indirect
golang.org/x/sys v0.0.0-20200929083018-4d22bbb62b3c // indirect
golang.org/x/tools v0.0.0-20200929223013-bf155c11ec6f // indirect
gopkg.in/ini.v1 v1.61.0 // indirect
gopkg.in/square/go-jose.v2 v2.5.1 // indirect
)

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@ -421,8 +421,6 @@ github.com/klauspost/cpuid v1.2.1/go.mod h1:Pj4uuM528wm8OyEC2QMXAi2YiTZ96dNQPGgo
github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
github.com/konsorten/go-windows-terminal-sequences v1.0.2 h1:DB17ag19krx9CFsz4o3enTrPXyIXCl+2iCXH/aMAp9s=
github.com/konsorten/go-windows-terminal-sequences v1.0.2/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
github.com/konsorten/go-windows-terminal-sequences v1.0.3 h1:CE8S1cTafDpPvMhIxNJKvHsGVBgn1xWYf1NbHQhywc8=
github.com/konsorten/go-windows-terminal-sequences v1.0.3/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
github.com/kr/fs v0.1.0/go.mod h1:FFnZGqtBN9Gxj7eW1uZ42v5BccTP0vu6NEaFoC2HwRg=
github.com/kr/logfmt v0.0.0-20140226030751-b84e30acd515/go.mod h1:+0opPa2QZZtGFBFZlji/RkVcI2GknAs/DXo4wKdlNEc=
github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
@ -441,8 +439,6 @@ github.com/labstack/gommon v0.3.0/go.mod h1:MULnywXg0yavhxWKc+lOruYdAhDwPK9wf0OL
github.com/magiconair/properties v1.8.0/go.mod h1:PppfXfuXeibc/6YijjN8zIbojt8czPbwD3XqdrwzmxQ=
github.com/magiconair/properties v1.8.1 h1:ZC2Vc7/ZFkGmsVC9KvOjumD+G5lXy2RtTKyzRKO2BQ4=
github.com/magiconair/properties v1.8.1/go.mod h1:PppfXfuXeibc/6YijjN8zIbojt8czPbwD3XqdrwzmxQ=
github.com/magiconair/properties v1.8.3 h1:kJSsc6EXkBLgr3SphHk9w5mtjn0bjlR4JYEXKrJ45rQ=
github.com/magiconair/properties v1.8.3/go.mod h1:y3VJvCyxH9uVvJTWEGAELF3aiYNyPKd5NZ3oSwXrF60=
github.com/magiconair/properties v1.8.4 h1:8KGKTcQQGm0Kv7vEbKFErAoAOFyyacLStRtQSeYtvkY=
github.com/magiconair/properties v1.8.4/go.mod h1:y3VJvCyxH9uVvJTWEGAELF3aiYNyPKd5NZ3oSwXrF60=
github.com/mailru/easyjson v0.0.0-20180823135443-60711f1a8329/go.mod h1:C1wdFJiN94OJF2b5HbByQZoLdCWB1Yqtg26g4irojpc=
@ -562,8 +558,6 @@ github.com/sirupsen/logrus v1.4.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPx
github.com/sirupsen/logrus v1.4.1/go.mod h1:ni0Sbl8bgC9z8RoU9G6nDWqqs/fq4eDPysMBDgk/93Q=
github.com/sirupsen/logrus v1.4.2 h1:SPIRibHv4MatM3XXNO2BJeFLZwZ2LvZgfQ5+UNI2im4=
github.com/sirupsen/logrus v1.4.2/go.mod h1:tLMulIdttU9McNUspp0xgXVQah82FyeX6MwdIuYE2rE=
github.com/sirupsen/logrus v1.6.0 h1:UBcNElsrwanuuMsnGSlYmtmgbb23qDR5dG+6X6Oo89I=
github.com/sirupsen/logrus v1.6.0/go.mod h1:7uNnSEd1DgxDLC74fIahvMZmmYsHGZGEOFrfsX/uA88=
github.com/sirupsen/logrus v1.7.0 h1:ShrD1U9pZB12TX0cVy0DtePoCH97K8EtX+mg7ZARUtM=
github.com/sirupsen/logrus v1.7.0/go.mod h1:yWOB1SBYBC5VeMP7gHvWumXLIWorT60ONWic61uBYv0=
github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d h1:zE9ykElWQ6/NYmHa3jpm/yHnI4xSofP+UP6SpjHcSeM=
@ -767,6 +761,8 @@ golang.org/x/net v0.0.0-20200813134508-3edf25e44fcc/go.mod h1:/O7V0waA8r7cgGh81R
golang.org/x/net v0.0.0-20200822124328-c89045814202/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
golang.org/x/net v0.0.0-20200904194848-62affa334b73 h1:MXfv8rhZWmFeqX3GNZRsd6vOLoaCHjYEX3qkRo3YBUA=
golang.org/x/net v0.0.0-20200904194848-62affa334b73/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
golang.org/x/net v0.0.0-20200927032502-5d4f70055728 h1:5wtQIAulKU5AbLQOkjxl32UufnIOqgBX72pS0AV14H0=
golang.org/x/net v0.0.0-20200927032502-5d4f70055728/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45 h1:SVwTIAaPC2U/AvvLNZ2a7OVsmBpC8L5BlwK1whH3hm0=
@ -837,6 +833,8 @@ golang.org/x/sys v0.0.0-20200625212154-ddb9806d33ae/go.mod h1:h1NjWce9XRLGQEsW7w
golang.org/x/sys v0.0.0-20200803210538-64077c9b5642/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200922070232-aee5d888a860 h1:YEu4SMq7D0cmT7CBbXfcH0NZeuChAXwsHe/9XueUO6o=
golang.org/x/sys v0.0.0-20200922070232-aee5d888a860/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200929083018-4d22bbb62b3c h1:/h0vtH0PyU0xAoZJVcRw1k0Ng+U0JAy3QDiFmppIlIE=
golang.org/x/sys v0.0.0-20200929083018-4d22bbb62b3c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/text v0.0.0-20170915032832-14c0d48ead0c/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
@ -903,8 +901,8 @@ golang.org/x/tools v0.0.0-20200729194436-6467de6f59a7/go.mod h1:njjCfa9FT2d7l9Bc
golang.org/x/tools v0.0.0-20200804011535-6c149bb5ef0d/go.mod h1:njjCfa9FT2d7l9Bc6FUM5FLjQPp3cFF28FI3qnDFljA=
golang.org/x/tools v0.0.0-20200817023811-d00afeaade8f h1:33yHANSyO/TeglgY9rBhUpX43wtonTXoFOsMRtNB6qE=
golang.org/x/tools v0.0.0-20200817023811-d00afeaade8f/go.mod h1:njjCfa9FT2d7l9Bc6FUM5FLjQPp3cFF28FI3qnDFljA=
golang.org/x/tools v0.0.0-20200923053713-ba800b16d873 h1:Q5Sq7Lt0bkn6Ax1NAraQhKRN7xxxy1LV4guxsyFHZx4=
golang.org/x/tools v0.0.0-20200923053713-ba800b16d873/go.mod h1:z6u4i615ZeAfBE4XtMziQW1fSVJXACjjbWkB/mvPzlU=
golang.org/x/tools v0.0.0-20200929223013-bf155c11ec6f h1:7+Nz9MyPqt2qMCTvNiRy1G0zYfkB7UCa+ayT6uVvbyI=
golang.org/x/tools v0.0.0-20200929223013-bf155c11ec6f/go.mod h1:z6u4i615ZeAfBE4XtMziQW1fSVJXACjjbWkB/mvPzlU=
golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7 h1:9zdDQZ7Thm29KFXgAX/+yaf3eVbP7djjWp/dXAppNCc=
golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=

30
proxy/pkg/proxy/claims.go Normal file
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@ -0,0 +1,30 @@
package proxy
import (
"encoding/base64"
"encoding/json"
"strings"
)
type Claims struct {
Proxy struct {
UserAttributes map[string]string `json:"user_attributes"`
} `json:"pb_proxy"`
}
func (c *Claims) FromIDToken(idToken string) error {
// id_token is a base64 encode ID token payload
// https://developers.google.com/accounts/docs/OAuth2Login#obtainuserinfo
jwt := strings.Split(idToken, ".")
jwtData := strings.TrimSuffix(jwt[1], "=")
b, err := base64.RawURLEncoding.DecodeString(jwtData)
if err != nil {
return err
}
err = json.Unmarshal(b, c)
if err != nil {
return err
}
return nil
}

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@ -85,7 +85,8 @@ type OAuthProxy struct {
SetBasicAuth bool
SkipProviderButton bool
PassUserHeaders bool
BasicAuthPassword string
BasicAuthUserAttribute string
BasicAuthPasswordAttribute string
PassAccessToken bool
SetAuthorization bool
PassAuthorization bool
@ -200,7 +201,6 @@ func NewOAuthProxy(opts *options.Options) (*OAuthProxy, error) {
PassBasicAuth: opts.PassBasicAuth,
SetBasicAuth: opts.SetBasicAuth,
PassUserHeaders: opts.PassUserHeaders,
BasicAuthPassword: opts.BasicAuthPassword,
PassAccessToken: opts.PassAccessToken,
SetAuthorization: opts.SetAuthorization,
PassAuthorization: opts.PassAuthorization,
@ -891,27 +891,6 @@ func (p *OAuthProxy) getAuthenticatedSession(rw http.ResponseWriter, req *http.R
// addHeadersForProxying adds the appropriate headers the request / response for proxying
func (p *OAuthProxy) addHeadersForProxying(rw http.ResponseWriter, req *http.Request, session *sessionsapi.SessionState) {
if p.PassBasicAuth {
if p.PreferEmailToUser && session.Email != "" {
req.SetBasicAuth(session.Email, p.BasicAuthPassword)
req.Header["X-Forwarded-User"] = []string{session.Email}
req.Header.Del("X-Forwarded-Email")
} else {
req.SetBasicAuth(session.User, p.BasicAuthPassword)
req.Header["X-Forwarded-User"] = []string{session.User}
if session.Email != "" {
req.Header["X-Forwarded-Email"] = []string{session.Email}
} else {
req.Header.Del("X-Forwarded-Email")
}
}
if session.PreferredUsername != "" {
req.Header["X-Forwarded-Preferred-Username"] = []string{session.PreferredUsername}
} else {
req.Header.Del("X-Forwarded-Preferred-Username")
}
}
if p.PassUserHeaders {
if p.PreferEmailToUser && session.Email != "" {
req.Header["X-Forwarded-User"] = []string{session.Email}
@ -970,16 +949,25 @@ func (p *OAuthProxy) addHeadersForProxying(rw http.ResponseWriter, req *http.Req
}
}
if p.SetBasicAuth {
switch {
case p.PreferEmailToUser && session.Email != "":
authVal := b64.StdEncoding.EncodeToString([]byte(session.Email + ":" + p.BasicAuthPassword))
rw.Header().Set("Authorization", "Basic "+authVal)
case session.User != "":
authVal := b64.StdEncoding.EncodeToString([]byte(session.User + ":" + p.BasicAuthPassword))
rw.Header().Set("Authorization", "Basic "+authVal)
default:
rw.Header().Del("Authorization")
claims := Claims{}
err := claims.FromIDToken(session.IDToken)
if err != nil {
log.WithError(err).Warning("Failed to parse IDToken")
}
userAttributes := claims.Proxy.UserAttributes
var ok bool
var password string
if password, ok = userAttributes[p.BasicAuthPasswordAttribute]; !ok {
password = ""
}
// Check if we should use email or a custom attribute as username
var username string
if username, ok = userAttributes[p.BasicAuthUserAttribute]; !ok {
username = session.Email
}
authVal := b64.StdEncoding.EncodeToString([]byte(username + ":" + password))
req.Header["Authorization"] = []string{fmt.Sprintf("Basic %s", authVal)}
}
if p.SetAuthorization {
if session.IDToken != "" {

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@ -51,6 +51,7 @@ func getCommonOptions() *options.Options {
commonOpts.Logging.SilencePing = true
commonOpts.SetXAuthRequest = true
commonOpts.SetAuthorization = false
commonOpts.Scope = "openid email profile pb_proxy"
return commonOpts
}

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@ -125,6 +125,12 @@ func (pb *providerBundle) Build(provider *models.ProxyOutpostConfig) {
os.Exit(1)
}
if *&provider.BasicAuthEnabled {
oauthproxy.SetBasicAuth = true
oauthproxy.BasicAuthUserAttribute = provider.BasicAuthUserAttribute
oauthproxy.BasicAuthPasswordAttribute = provider.BasicAuthPasswordAttribute
}
pb.proxy = oauthproxy
pb.Handler = chain.Then(oauthproxy)
}