Example app
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/example
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LICENSE
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LICENSE
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Apache License
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9
README.md
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9
README.md
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@ -0,0 +1,9 @@
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# Example app from Dex
|
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|
||||
This repo contains the example app from the Dex repository (https://github.com/dexidp/dex/tree/master/examples/example-app).
|
||||
|
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We did not make any modification on it;
|
||||
|
||||
## License
|
||||
|
||||
The project is licensed under the [Apache License, Version 2.0](LICENSE).
|
||||
19
go.mod
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19
go.mod
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module example
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|
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go 1.20
|
||||
|
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require (
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||||
github.com/coreos/go-oidc/v3 v3.9.0
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github.com/spf13/cobra v1.8.0
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golang.org/x/oauth2 v0.16.0
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||||
)
|
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|
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require (
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github.com/go-jose/go-jose/v3 v3.0.1 // indirect
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||||
github.com/golang/protobuf v1.5.3 // indirect
|
||||
github.com/inconshreveable/mousetrap v1.1.0 // indirect
|
||||
github.com/spf13/pflag v1.0.5 // indirect
|
||||
golang.org/x/crypto v0.14.0 // indirect
|
||||
google.golang.org/appengine v1.6.8 // indirect
|
||||
google.golang.org/protobuf v1.31.0 // indirect
|
||||
)
|
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68
go.sum
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68
go.sum
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@ -0,0 +1,68 @@
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github.com/coreos/go-oidc/v3 v3.9.0 h1:0J/ogVOd4y8P0f0xUh8l9t07xRP/d8tccvjHl2dcsSo=
|
||||
github.com/coreos/go-oidc/v3 v3.9.0/go.mod h1:rTKz2PYwftcrtoCzV5g5kvfJoWcm0Mk8AF8y1iAQro4=
|
||||
github.com/cpuguy83/go-md2man/v2 v2.0.3/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
|
||||
github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
|
||||
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
|
||||
github.com/go-jose/go-jose/v3 v3.0.1 h1:pWmKFVtt+Jl0vBZTIpz/eAKwsm6LkIxDVVbFHKkchhA=
|
||||
github.com/go-jose/go-jose/v3 v3.0.1/go.mod h1:RNkWWRld676jZEYoV3+XK8L2ZnNSvIsxFMht0mSX+u8=
|
||||
github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
|
||||
github.com/golang/protobuf v1.5.2/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
|
||||
github.com/golang/protobuf v1.5.3 h1:KhyjKVUg7Usr/dYsdSqoFveMYd5ko72D+zANwlG1mmg=
|
||||
github.com/golang/protobuf v1.5.3/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
|
||||
github.com/google/go-cmp v0.5.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
|
||||
github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
|
||||
github.com/google/go-cmp v0.5.9 h1:O2Tfq5qg4qc4AmwVlvv0oLiVAGB7enBSJ2x2DqQFi38=
|
||||
github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8=
|
||||
github.com/inconshreveable/mousetrap v1.1.0/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
|
||||
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/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
|
||||
github.com/spf13/cobra v1.8.0 h1:7aJaZx1B85qltLMc546zn58BxxfZdR/W22ej9CFoEf0=
|
||||
github.com/spf13/cobra v1.8.0/go.mod h1:WXLWApfZ71AjXPya3WOlMsY9yMs7YeiHhFVlvLyhcho=
|
||||
github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=
|
||||
github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
|
||||
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
|
||||
github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
|
||||
github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
|
||||
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 v0.0.0-20190911031432-227b76d455e7/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
|
||||
golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
|
||||
golang.org/x/crypto v0.14.0 h1:wBqGXzWJW6m1XrIKlAH0Hs1JJ7+9KBwnIO8v66Q9cHc=
|
||||
golang.org/x/crypto v0.14.0/go.mod h1:MVFd36DqK4CsrnJYDkBA3VC4m2GkXAM0PvzMCn4JQf4=
|
||||
golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
|
||||
golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
|
||||
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/oauth2 v0.16.0 h1:aDkGMBSYxElaoP81NpoUoz2oo2R2wHdZpGToUxfyQrQ=
|
||||
golang.org/x/oauth2 v0.16.0/go.mod h1:hqZ+0LWXsiVoZpeld6jVt06P3adbS2Uu911W1SsJv2o=
|
||||
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/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
|
||||
golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
|
||||
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/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/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 v0.3.8/go.mod h1:E6s5w1FMmriuDzIBO73fBruAKo1PCIq6d2Q6DHfQ8WQ=
|
||||
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/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
|
||||
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
|
||||
google.golang.org/appengine v1.6.8 h1:IhEN5q69dyKagZPYMSdIjS2HqprW324FRQZJcGqPAsM=
|
||||
google.golang.org/appengine v1.6.8/go.mod h1:1jJ3jBArFh5pcgW8gCtRJnepW8FzD1V44FJffLiz/Ds=
|
||||
google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
|
||||
google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
|
||||
google.golang.org/protobuf v1.31.0 h1:g0LDEJHgrBl9N9r17Ru3sqWhkIx2NB67okBHPwC7hs8=
|
||||
google.golang.org/protobuf v1.31.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
|
||||
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=
|
||||
339
main.go
Normal file
339
main.go
Normal file
|
|
@ -0,0 +1,339 @@
|
|||
package main
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"context"
|
||||
"crypto/tls"
|
||||
"crypto/x509"
|
||||
"encoding/json"
|
||||
"errors"
|
||||
"fmt"
|
||||
"log"
|
||||
"net"
|
||||
"net/http"
|
||||
"net/http/httputil"
|
||||
"net/url"
|
||||
"os"
|
||||
"strings"
|
||||
"time"
|
||||
|
||||
"github.com/coreos/go-oidc/v3/oidc"
|
||||
"github.com/spf13/cobra"
|
||||
"golang.org/x/oauth2"
|
||||
)
|
||||
|
||||
const exampleAppState = "I wish to wash my irish wristwatch"
|
||||
|
||||
type app struct {
|
||||
clientID string
|
||||
clientSecret string
|
||||
redirectURI string
|
||||
|
||||
verifier *oidc.IDTokenVerifier
|
||||
provider *oidc.Provider
|
||||
|
||||
// Does the provider use "offline_access" scope to request a refresh token
|
||||
// or does it use "access_type=offline" (e.g. Google)?
|
||||
offlineAsScope bool
|
||||
|
||||
client *http.Client
|
||||
}
|
||||
|
||||
// return an HTTP client which trusts the provided root CAs.
|
||||
func httpClientForRootCAs(rootCAs string) (*http.Client, error) {
|
||||
tlsConfig := tls.Config{RootCAs: x509.NewCertPool()}
|
||||
rootCABytes, err := os.ReadFile(rootCAs)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("failed to read root-ca: %v", err)
|
||||
}
|
||||
if !tlsConfig.RootCAs.AppendCertsFromPEM(rootCABytes) {
|
||||
return nil, fmt.Errorf("no certs found in root CA file %q", rootCAs)
|
||||
}
|
||||
return &http.Client{
|
||||
Transport: &http.Transport{
|
||||
TLSClientConfig: &tlsConfig,
|
||||
Proxy: http.ProxyFromEnvironment,
|
||||
Dial: (&net.Dialer{
|
||||
Timeout: 30 * time.Second,
|
||||
KeepAlive: 30 * time.Second,
|
||||
}).Dial,
|
||||
TLSHandshakeTimeout: 10 * time.Second,
|
||||
ExpectContinueTimeout: 1 * time.Second,
|
||||
},
|
||||
}, nil
|
||||
}
|
||||
|
||||
type debugTransport struct {
|
||||
t http.RoundTripper
|
||||
}
|
||||
|
||||
func (d debugTransport) RoundTrip(req *http.Request) (*http.Response, error) {
|
||||
reqDump, err := httputil.DumpRequest(req, true)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
log.Printf("%s", reqDump)
|
||||
|
||||
resp, err := d.t.RoundTrip(req)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
respDump, err := httputil.DumpResponse(resp, true)
|
||||
if err != nil {
|
||||
resp.Body.Close()
|
||||
return nil, err
|
||||
}
|
||||
log.Printf("%s", respDump)
|
||||
return resp, nil
|
||||
}
|
||||
|
||||
func cmd() *cobra.Command {
|
||||
var (
|
||||
a app
|
||||
issuerURL string
|
||||
listen string
|
||||
tlsCert string
|
||||
tlsKey string
|
||||
rootCAs string
|
||||
debug bool
|
||||
)
|
||||
c := cobra.Command{
|
||||
Use: "example-app",
|
||||
Short: "An example OpenID Connect client",
|
||||
Long: "",
|
||||
RunE: func(cmd *cobra.Command, args []string) error {
|
||||
if len(args) != 0 {
|
||||
return errors.New("surplus arguments provided")
|
||||
}
|
||||
|
||||
u, err := url.Parse(a.redirectURI)
|
||||
if err != nil {
|
||||
return fmt.Errorf("parse redirect-uri: %v", err)
|
||||
}
|
||||
listenURL, err := url.Parse(listen)
|
||||
if err != nil {
|
||||
return fmt.Errorf("parse listen address: %v", err)
|
||||
}
|
||||
|
||||
if rootCAs != "" {
|
||||
client, err := httpClientForRootCAs(rootCAs)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
a.client = client
|
||||
}
|
||||
|
||||
if debug {
|
||||
if a.client == nil {
|
||||
a.client = &http.Client{
|
||||
Transport: debugTransport{http.DefaultTransport},
|
||||
}
|
||||
} else {
|
||||
a.client.Transport = debugTransport{a.client.Transport}
|
||||
}
|
||||
}
|
||||
|
||||
if a.client == nil {
|
||||
a.client = http.DefaultClient
|
||||
}
|
||||
|
||||
// TODO(ericchiang): Retry with backoff
|
||||
ctx := oidc.ClientContext(context.Background(), a.client)
|
||||
provider, err := oidc.NewProvider(ctx, issuerURL)
|
||||
if err != nil {
|
||||
return fmt.Errorf("failed to query provider %q: %v", issuerURL, err)
|
||||
}
|
||||
|
||||
var s struct {
|
||||
// What scopes does a provider support?
|
||||
//
|
||||
// See: https://openid.net/specs/openid-connect-discovery-1_0.html#ProviderMetadata
|
||||
ScopesSupported []string `json:"scopes_supported"`
|
||||
}
|
||||
if err := provider.Claims(&s); err != nil {
|
||||
return fmt.Errorf("failed to parse provider scopes_supported: %v", err)
|
||||
}
|
||||
|
||||
if len(s.ScopesSupported) == 0 {
|
||||
// scopes_supported is a "RECOMMENDED" discovery claim, not a required
|
||||
// one. If missing, assume that the provider follows the spec and has
|
||||
// an "offline_access" scope.
|
||||
a.offlineAsScope = true
|
||||
} else {
|
||||
// See if scopes_supported has the "offline_access" scope.
|
||||
a.offlineAsScope = func() bool {
|
||||
for _, scope := range s.ScopesSupported {
|
||||
if scope == oidc.ScopeOfflineAccess {
|
||||
return true
|
||||
}
|
||||
}
|
||||
return false
|
||||
}()
|
||||
}
|
||||
|
||||
a.provider = provider
|
||||
a.verifier = provider.Verifier(&oidc.Config{ClientID: a.clientID})
|
||||
|
||||
http.HandleFunc("/", a.handleIndex)
|
||||
http.HandleFunc("/login", a.handleLogin)
|
||||
http.HandleFunc(u.Path, a.handleCallback)
|
||||
|
||||
switch listenURL.Scheme {
|
||||
case "http":
|
||||
log.Printf("listening on %s", listen)
|
||||
return http.ListenAndServe(listenURL.Host, nil)
|
||||
case "https":
|
||||
log.Printf("listening on %s", listen)
|
||||
return http.ListenAndServeTLS(listenURL.Host, tlsCert, tlsKey, nil)
|
||||
default:
|
||||
return fmt.Errorf("listen address %q is not using http or https", listen)
|
||||
}
|
||||
},
|
||||
}
|
||||
c.Flags().StringVar(&a.clientID, "client-id", "example-app", "OAuth2 client ID of this application.")
|
||||
c.Flags().StringVar(&a.clientSecret, "client-secret", "ZXhhbXBsZS1hcHAtc2VjcmV0", "OAuth2 client secret of this application.")
|
||||
c.Flags().StringVar(&a.redirectURI, "redirect-uri", "http://127.0.0.1:5555/callback", "Callback URL for OAuth2 responses.")
|
||||
c.Flags().StringVar(&issuerURL, "issuer", "http://127.0.0.1:5556/dex", "URL of the OpenID Connect issuer.")
|
||||
c.Flags().StringVar(&listen, "listen", "http://127.0.0.1:5555", "HTTP(S) address to listen at.")
|
||||
c.Flags().StringVar(&tlsCert, "tls-cert", "", "X509 cert file to present when serving HTTPS.")
|
||||
c.Flags().StringVar(&tlsKey, "tls-key", "", "Private key for the HTTPS cert.")
|
||||
c.Flags().StringVar(&rootCAs, "issuer-root-ca", "", "Root certificate authorities for the issuer. Defaults to host certs.")
|
||||
c.Flags().BoolVar(&debug, "debug", false, "Print all request and responses from the OpenID Connect issuer.")
|
||||
return &c
|
||||
}
|
||||
|
||||
func main() {
|
||||
if err := cmd().Execute(); err != nil {
|
||||
fmt.Fprintf(os.Stderr, "error: %v\n", err)
|
||||
os.Exit(2)
|
||||
}
|
||||
}
|
||||
|
||||
func (a *app) handleIndex(w http.ResponseWriter, r *http.Request) {
|
||||
renderIndex(w)
|
||||
}
|
||||
|
||||
func (a *app) oauth2Config(scopes []string) *oauth2.Config {
|
||||
return &oauth2.Config{
|
||||
ClientID: a.clientID,
|
||||
ClientSecret: a.clientSecret,
|
||||
Endpoint: a.provider.Endpoint(),
|
||||
Scopes: scopes,
|
||||
RedirectURL: a.redirectURI,
|
||||
}
|
||||
}
|
||||
|
||||
func (a *app) handleLogin(w http.ResponseWriter, r *http.Request) {
|
||||
var scopes []string
|
||||
if extraScopes := r.FormValue("extra_scopes"); extraScopes != "" {
|
||||
scopes = strings.Split(extraScopes, " ")
|
||||
}
|
||||
var clients []string
|
||||
if crossClients := r.FormValue("cross_client"); crossClients != "" {
|
||||
clients = strings.Split(crossClients, " ")
|
||||
}
|
||||
for _, client := range clients {
|
||||
scopes = append(scopes, "audience:server:client_id:"+client)
|
||||
}
|
||||
connectorID := ""
|
||||
if id := r.FormValue("connector_id"); id != "" {
|
||||
connectorID = id
|
||||
}
|
||||
|
||||
authCodeURL := ""
|
||||
scopes = append(scopes, "openid", "profile", "email")
|
||||
if r.FormValue("offline_access") != "yes" {
|
||||
authCodeURL = a.oauth2Config(scopes).AuthCodeURL(exampleAppState)
|
||||
} else if a.offlineAsScope {
|
||||
scopes = append(scopes, "offline_access")
|
||||
authCodeURL = a.oauth2Config(scopes).AuthCodeURL(exampleAppState)
|
||||
} else {
|
||||
authCodeURL = a.oauth2Config(scopes).AuthCodeURL(exampleAppState, oauth2.AccessTypeOffline)
|
||||
}
|
||||
if connectorID != "" {
|
||||
authCodeURL = authCodeURL + "&connector_id=" + connectorID
|
||||
}
|
||||
|
||||
http.Redirect(w, r, authCodeURL, http.StatusSeeOther)
|
||||
}
|
||||
|
||||
func (a *app) handleCallback(w http.ResponseWriter, r *http.Request) {
|
||||
var (
|
||||
err error
|
||||
token *oauth2.Token
|
||||
)
|
||||
|
||||
ctx := oidc.ClientContext(r.Context(), a.client)
|
||||
oauth2Config := a.oauth2Config(nil)
|
||||
switch r.Method {
|
||||
case http.MethodGet:
|
||||
// Authorization redirect callback from OAuth2 auth flow.
|
||||
if errMsg := r.FormValue("error"); errMsg != "" {
|
||||
http.Error(w, errMsg+": "+r.FormValue("error_description"), http.StatusBadRequest)
|
||||
return
|
||||
}
|
||||
code := r.FormValue("code")
|
||||
if code == "" {
|
||||
http.Error(w, fmt.Sprintf("no code in request: %q", r.Form), http.StatusBadRequest)
|
||||
return
|
||||
}
|
||||
if state := r.FormValue("state"); state != exampleAppState {
|
||||
http.Error(w, fmt.Sprintf("expected state %q got %q", exampleAppState, state), http.StatusBadRequest)
|
||||
return
|
||||
}
|
||||
token, err = oauth2Config.Exchange(ctx, code)
|
||||
case http.MethodPost:
|
||||
// Form request from frontend to refresh a token.
|
||||
refresh := r.FormValue("refresh_token")
|
||||
if refresh == "" {
|
||||
http.Error(w, fmt.Sprintf("no refresh_token in request: %q", r.Form), http.StatusBadRequest)
|
||||
return
|
||||
}
|
||||
t := &oauth2.Token{
|
||||
RefreshToken: refresh,
|
||||
Expiry: time.Now().Add(-time.Hour),
|
||||
}
|
||||
token, err = oauth2Config.TokenSource(ctx, t).Token()
|
||||
default:
|
||||
http.Error(w, fmt.Sprintf("method not implemented: %s", r.Method), http.StatusBadRequest)
|
||||
return
|
||||
}
|
||||
|
||||
if err != nil {
|
||||
http.Error(w, fmt.Sprintf("failed to get token: %v", err), http.StatusInternalServerError)
|
||||
return
|
||||
}
|
||||
|
||||
rawIDToken, ok := token.Extra("id_token").(string)
|
||||
if !ok {
|
||||
http.Error(w, "no id_token in token response", http.StatusInternalServerError)
|
||||
return
|
||||
}
|
||||
|
||||
idToken, err := a.verifier.Verify(r.Context(), rawIDToken)
|
||||
if err != nil {
|
||||
http.Error(w, fmt.Sprintf("failed to verify ID token: %v", err), http.StatusInternalServerError)
|
||||
return
|
||||
}
|
||||
|
||||
accessToken, ok := token.Extra("access_token").(string)
|
||||
if !ok {
|
||||
http.Error(w, "no access_token in token response", http.StatusInternalServerError)
|
||||
return
|
||||
}
|
||||
|
||||
var claims json.RawMessage
|
||||
if err := idToken.Claims(&claims); err != nil {
|
||||
http.Error(w, fmt.Sprintf("error decoding ID token claims: %v", err), http.StatusInternalServerError)
|
||||
return
|
||||
}
|
||||
|
||||
buff := new(bytes.Buffer)
|
||||
if err := json.Indent(buff, []byte(claims), "", " "); err != nil {
|
||||
http.Error(w, fmt.Sprintf("error indenting ID token claims: %v", err), http.StatusInternalServerError)
|
||||
return
|
||||
}
|
||||
|
||||
renderToken(w, a.redirectURI, rawIDToken, accessToken, token.RefreshToken, buff.String())
|
||||
}
|
||||
110
templates.go
Normal file
110
templates.go
Normal file
|
|
@ -0,0 +1,110 @@
|
|||
package main
|
||||
|
||||
import (
|
||||
"html/template"
|
||||
"log"
|
||||
"net/http"
|
||||
)
|
||||
|
||||
var indexTmpl = template.Must(template.New("index.html").Parse(`<html>
|
||||
<head>
|
||||
<style>
|
||||
form { display: table; }
|
||||
p { display: table-row; }
|
||||
label { display: table-cell; }
|
||||
input { display: table-cell; }
|
||||
</style>
|
||||
</head>
|
||||
<body>
|
||||
<form action="/login" method="post">
|
||||
<p>
|
||||
<label> Authenticate for: </label>
|
||||
<input type="text" name="cross_client" placeholder="list of client-ids">
|
||||
</p>
|
||||
<p>
|
||||
<label>Extra scopes: </label>
|
||||
<input type="text" name="extra_scopes" placeholder="list of scopes">
|
||||
</p>
|
||||
<p>
|
||||
<label>Connector ID: </label>
|
||||
<input type="text" name="connector_id" placeholder="connector id">
|
||||
</p>
|
||||
<p>
|
||||
<label>Request offline access: </label>
|
||||
<input type="checkbox" name="offline_access" value="yes" checked>
|
||||
</p>
|
||||
<p>
|
||||
<input type="submit" value="Login">
|
||||
</p>
|
||||
</form>
|
||||
</body>
|
||||
</html>`))
|
||||
|
||||
func renderIndex(w http.ResponseWriter) {
|
||||
renderTemplate(w, indexTmpl, nil)
|
||||
}
|
||||
|
||||
type tokenTmplData struct {
|
||||
IDToken string
|
||||
AccessToken string
|
||||
RefreshToken string
|
||||
RedirectURL string
|
||||
Claims string
|
||||
}
|
||||
|
||||
var tokenTmpl = template.Must(template.New("token.html").Parse(`<html>
|
||||
<head>
|
||||
<style>
|
||||
/* make pre wrap */
|
||||
pre {
|
||||
white-space: pre-wrap; /* css-3 */
|
||||
white-space: -moz-pre-wrap; /* Mozilla, since 1999 */
|
||||
white-space: -pre-wrap; /* Opera 4-6 */
|
||||
white-space: -o-pre-wrap; /* Opera 7 */
|
||||
word-wrap: break-word; /* Internet Explorer 5.5+ */
|
||||
}
|
||||
</style>
|
||||
</head>
|
||||
<body>
|
||||
<p> ID Token: <pre><code>{{ .IDToken }}</code></pre></p>
|
||||
<p> Access Token: <pre><code>{{ .AccessToken }}</code></pre></p>
|
||||
<p> Claims: <pre><code>{{ .Claims }}</code></pre></p>
|
||||
{{ if .RefreshToken }}
|
||||
<p> Refresh Token: <pre><code>{{ .RefreshToken }}</code></pre></p>
|
||||
<form action="{{ .RedirectURL }}" method="post">
|
||||
<input type="hidden" name="refresh_token" value="{{ .RefreshToken }}">
|
||||
<input type="submit" value="Redeem refresh token">
|
||||
</form>
|
||||
{{ end }}
|
||||
</body>
|
||||
</html>
|
||||
`))
|
||||
|
||||
func renderToken(w http.ResponseWriter, redirectURL, idToken, accessToken, refreshToken, claims string) {
|
||||
renderTemplate(w, tokenTmpl, tokenTmplData{
|
||||
IDToken: idToken,
|
||||
AccessToken: accessToken,
|
||||
RefreshToken: refreshToken,
|
||||
RedirectURL: redirectURL,
|
||||
Claims: claims,
|
||||
})
|
||||
}
|
||||
|
||||
func renderTemplate(w http.ResponseWriter, tmpl *template.Template, data interface{}) {
|
||||
err := tmpl.Execute(w, data)
|
||||
if err == nil {
|
||||
return
|
||||
}
|
||||
|
||||
switch err := err.(type) {
|
||||
case *template.Error:
|
||||
// An ExecError guarantees that Execute has not written to the underlying reader.
|
||||
log.Printf("Error rendering template %s: %s", tmpl.Name(), err)
|
||||
|
||||
// TODO(ericchiang): replace with better internal server error.
|
||||
http.Error(w, "Internal server error", http.StatusInternalServerError)
|
||||
default:
|
||||
// An error with the underlying write, such as the connection being
|
||||
// dropped. Ignore for now.
|
||||
}
|
||||
}
|
||||
Loading…
Reference in a new issue