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Update LDAP TLS SE with v2 service extension format (#33)
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* Update LDAP TLS SE with v2 service extension format

---------

Signed-off-by: Warren Fernandes <[email protected]>
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@wfernandes
wfernandes authored Nov 15, 2023
1 parent c2d47b2 commit 84f4e67
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Showing 4 changed files with 162 additions and 34 deletions.
102 changes: 70 additions & 32 deletions ldap-tls/auth.go
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Original file line number Diff line number Diff line change
Expand Up @@ -3,76 +3,114 @@ package main
import (
"crypto/tls"
"crypto/x509"
"errors"
"fmt"
"net/http"

"maverics/app"
"maverics/ldap"
"maverics/log"
"maverics/secret"
"maverics/session"
)

const (
idpName = "ldap"
ldapURL = "ldap://ldap.examples.com"
ldapServerName = "ldap.examples.com"
ldapBaseDN = "ou=People,dc=examples,dc=com"
ldapCASecretName = "ldapCA"
ldap3 "github.com/go-ldap/ldap/v3"
"github.com/strata-io/service-extension/orchestrator"
)

// IsAuthenticated determines if the user has been authenticated.
func IsAuthenticated(ag *app.AppGateway, rw http.ResponseWriter, req *http.Request) bool {
log.Debug("se", "determining if user is authenticated")
func IsAuthenticated(api orchestrator.Orchestrator, _ http.ResponseWriter, _ *http.Request) bool {
logger := api.Logger()
session, err := api.Session()
if err != nil {
logger.Error("se", "unable to retrieve session", "error", err.Error())
return false
}
metadata := api.Metadata()
idpName := metadata["idpName"].(string)

if session.GetString(req, fmt.Sprintf("%s.authenticated", idpName)) == "true" {
logger.Debug("se", "determining if user is authenticated")

isAuthenticated, err := session.GetString(fmt.Sprintf("%s.authenticated", idpName))
if err != nil {
logger.Error(
"se", fmt.Sprintf("unable to retrieve session value '%s.authenticated'", idpName),
"error", err.Error(),
)
return false
}
if isAuthenticated == "true" {
return true
}

return false
}

// Authenticate authenticates the user against the IDP.
func Authenticate(ag *app.AppGateway, rw http.ResponseWriter, req *http.Request) error {
func Authenticate(api orchestrator.Orchestrator, rw http.ResponseWriter, req *http.Request) {
logger := api.Logger()
session, err := api.Session()
if err != nil {
logger.Error("se", "unable to retrieve session", "error", err.Error())
http.Error(rw, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
return
}
secretProvider, err := api.SecretProvider()
if err != nil {
logger.Error("se", "unable to retrieve secret provider", "error", err.Error())
http.Error(rw, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
return
}
metadata := api.Metadata()
idpName := metadata["idpName"].(string)
ldapURL := metadata["ldapURL"].(string)
ldapServerName := metadata["ldapServerName"].(string)
ldapBaseDN := metadata["ldapBaseDN"].(string)
ldapCASecretName := metadata["ldapCASecretName"].(string)

username, password, ok := req.BasicAuth()
if !ok {
log.Error("se", "unable to read basic auth headers")
return errors.New("unable to read basic auth headers")
logger.Error("se", "unable to read basic auth headers")
http.Error(rw, http.StatusText(http.StatusBadRequest), http.StatusBadRequest)
return
}

log.Info(
logger.Info(
"se", "logging user in",
"req", req.URL.String(),
"username", username,
)
certPool, err := x509.SystemCertPool()
if err != nil {
return fmt.Errorf("unable to load system cert pool: %w", err)
logger.Error("se", "unable to load system cert pool", "error", err.Error())
http.Error(rw, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
return
}
ldapCACert := secret.GetString(ldapCASecretName)
ldapCACert := secretProvider.GetString(ldapCASecretName)
certPool.AppendCertsFromPEM([]byte(ldapCACert))
tlsCfg := &tls.Config{
ServerName: ldapServerName,
RootCAs: certPool,
}

conn, err := ldap.DialURL(ldapURL, ldap.DialWithTLSConfig(tlsCfg))
conn, err := ldap3.DialURL(ldapURL, ldap3.DialWithTLSConfig(tlsCfg))
if err != nil {
return fmt.Errorf("unable to do ldap dial: %w", err)
logger.Error("se", "unable to do ldap dial", "error", err.Error())
http.Error(rw, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
return
}
defer conn.Close()

usernameKey := fmt.Sprintf("uid=%s,%s", username, ldapBaseDN)
err = conn.Bind(usernameKey, password)
if err != nil {
return fmt.Errorf("unable to do ldap bind: %w", err)
logger.Error("se", "unable to do ldap bind", "error", err.Error())
http.Error(rw, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
return
}

_ = session.SetString(fmt.Sprintf("%s.authenticated", idpName), "true")
_ = session.SetString(fmt.Sprintf("%s.cn", idpName), username)

err = session.Save()
if err != nil {
logger.Error("se", "unable to save session", "error", err.Error())
http.Error(rw, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
return
}
session.Set(req, fmt.Sprintf("%s.authenticated", idpName), "true")
session.Set(req, fmt.Sprintf("%s.cn", idpName), username)
log.Info("se", "user authenticated", "username", username)
return nil

log.Info("se", "successfully authenticated", "username", username)
return nil
logger.Info("se", "user successfully authenticated", "username", username)
return
}
15 changes: 15 additions & 0 deletions ldap-tls/go.mod
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Original file line number Diff line number Diff line change
@@ -0,0 +1,15 @@
module github.com/strata-io/strata-service-extension-examples/ldap-tls

go 1.20

require (
github.com/go-ldap/ldap/v3 v3.4.6
github.com/strata-io/service-extension v0.4.0
)

require (
github.com/Azure/go-ntlmssp v0.0.0-20221128193559-754e69321358 // indirect
github.com/go-asn1-ber/asn1-ber v1.5.5 // indirect
github.com/google/uuid v1.3.1 // indirect
golang.org/x/crypto v0.13.0 // indirect
)
65 changes: 65 additions & 0 deletions ldap-tls/go.sum
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Original file line number Diff line number Diff line change
@@ -0,0 +1,65 @@
github.com/Azure/go-ntlmssp v0.0.0-20221128193559-754e69321358 h1:mFRzDkZVAjdal+s7s0MwaRv9igoPqLRdzOLzw/8Xvq8=
github.com/Azure/go-ntlmssp v0.0.0-20221128193559-754e69321358/go.mod h1:chxPXzSsl7ZWRAuOIE23GDNzjWuZquvFlgA8xmpunjU=
github.com/alexbrainman/sspi v0.0.0-20210105120005-909beea2cc74 h1:Kk6a4nehpJ3UuJRqlA3JxYxBZEqCeOmATOvrbT4p9RA=
github.com/alexbrainman/sspi v0.0.0-20210105120005-909beea2cc74/go.mod h1:cEWa1LVoE5KvSD9ONXsZrj0z6KqySlCCNKHlLzbqAt4=
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/go-asn1-ber/asn1-ber v1.5.5 h1:MNHlNMBDgEKD4TcKr36vQN68BA00aDfjIt3/bD50WnA=
github.com/go-asn1-ber/asn1-ber v1.5.5/go.mod h1:hEBeB/ic+5LoWskz+yKT7vGhhPYkProFKoKdwZRWMe0=
github.com/go-ldap/ldap/v3 v3.4.6 h1:ert95MdbiG7aWo/oPYp9btL3KJlMPKnP58r09rI8T+A=
github.com/go-ldap/ldap/v3 v3.4.6/go.mod h1:IGMQANNtxpsOzj7uUAMjpGBaOVTC4DYyIy8VsTdxmtc=
github.com/google/uuid v1.3.1 h1:KjJaJ9iWZ3jOFZIf1Lqf4laDRCasjl0BCmnEGxkdLb4=
github.com/google/uuid v1.3.1/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/strata-io/service-extension v0.4.0 h1:EBncLpV41HkUpVRStbF+F+YE89u6srqXjInqdZDMtuM=
github.com/strata-io/service-extension v0.4.0/go.mod h1:AXZz5Rjl5A2KieMuDy9zwsUZlg7PtR1IBeHYuAijb/o=
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
github.com/stretchr/testify v1.8.0 h1:pSgiaMZlXftHpm5L7V1+rVB+AZJydKsMxsQBIJw4PKk=
github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
golang.org/x/crypto v0.13.0 h1:mvySKfSWJ+UKUii46M40LOvyWfN0s2U+46/jDd0e6Ck=
golang.org/x/crypto v0.13.0/go.mod h1:y6Z2r+Rw4iayiXXAIxJIDAJ1zMW4yaTpebo8fPOliYc=
golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
golang.org/x/mod v0.8.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
golang.org/x/net v0.6.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
golang.org/x/net v0.10.0/go.mod h1:0qNGK6F8kojg2nk9dLZ2mShWaEBan6FAoqfSigmmuDg=
golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.8.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.12.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
golang.org/x/term v0.5.0/go.mod h1:jMB1sMXY+tzblOD4FWmEbocvup2/aLOaQEp7JmGp78k=
golang.org/x/term v0.8.0/go.mod h1:xPskH00ivmX89bAKVGSKKtLOWNx2+17Eiy94tnKShWo=
golang.org/x/term v0.12.0/go.mod h1:owVbMEjm3cBLCHdkQu9b1opXd4ETQWc3BhuQGKgXgvU=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
golang.org/x/text v0.9.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8=
golang.org/x/text v0.13.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU=
golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
14 changes: 12 additions & 2 deletions ldap-tls/maverics.yaml
View file
Original file line number Diff line number Diff line change
Expand Up @@ -15,9 +15,11 @@ http:
logger:
level: debug

appgateways:
apps:
- name: exampleLDAPTLS
basePath: /
type: proxy
routePatterns:
- /
# The 'upstream' used here is purely for demonstration and can be replaced with
# any URL that is resolvable from the machine the Orchestrator is running on.
upstream: https://cylog.org
Expand All @@ -33,8 +35,16 @@ appgateways:
isAuthenticatedSE:
funcName: IsAuthenticated
file: /etc/maverics/extensions/auth.go
metadata:
idpName: "ldap"
authenticateSE:
funcName: Authenticate
file: /etc/maverics/extensions/auth.go
metadata:
idpName: "ldap"
ldapURL: "ldap://ldap.examples.com"
ldapServerName: "ldap.examples.com"
ldapBaseDN: "ou=People,dc=examples,dc=com"
ldapCASecretName: "ldapCA"
authorization:
allowAll: true

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