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authorize: add client mTLS support (#751)

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* authorize: add client mtls support

* authorize: better error messages for envoy

* switch from function to input

* add TrustedCa to envoy config so that users are prompted for the correct client certificate

* update documentation

* fix invalid ClientCAFile

* regenerate cache protobuf

* avoid recursion, add test

* move comment line

* use http.StatusOK

* various fixes
This commit is contained in:
Caleb Doxsey 2020-05-21 16:01:07 -06:00 • committed by GitHub
parent 3f1faf2e9e
commit e4832cb4ed
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GPG key ID: 4AEE18F83AFDEB23
24 changed files with 995 additions and 279 deletions
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26
authorize/authorize.go
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@ -2,10 +2,14 @@
// if a given request should be authorized (AuthZ).
package authorize
//go:generate ../scripts/protoc -I ../internal/grpc/authorize/ --go_out=plugins=grpc:../internal/grpc/authorize/ ../internal/grpc/authorize/authorize.proto
import (
"context"
"encoding/base64"
"fmt"
"html/template"
"io/ioutil"
"sync/atomic"
"github.com/pomerium/pomerium/authorize/evaluator"
@ -14,6 +18,7 @@ import (
"github.com/pomerium/pomerium/internal/cryptutil"
"github.com/pomerium/pomerium/internal/encoding"
"github.com/pomerium/pomerium/internal/encoding/jws"
"github.com/pomerium/pomerium/internal/frontend"
"github.com/pomerium/pomerium/internal/log"
"github.com/pomerium/pomerium/internal/telemetry/metrics"
"github.com/pomerium/pomerium/internal/telemetry/trace"
@ -51,6 +56,7 @@ type Authorize struct {
currentOptions atomicOptions
currentEncoder atomicMarshalUnmarshaler
templates *template.Template
}
// New validates and creates a new Authorize service from a set of config options.
@ -58,7 +64,9 @@ func New(opts config.Options) (*Authorize, error) {
if err := validateOptions(opts); err != nil {
return nil, fmt.Errorf("authorize: bad options: %w", err)
}
var a Authorize
a := Authorize{
templates: template.Must(frontend.NewTemplates()),
}
var host string
if opts.AuthenticateURL != nil {
@ -117,12 +125,28 @@ func newPolicyEvaluator(opts *config.Options) (evaluator.Evaluator, error) {
jwk.Key = keyBytes
}
var clientCA string
if opts.ClientCA != "" {
bs, err := base64.StdEncoding.DecodeString(opts.ClientCA)
if err != nil {
return nil, fmt.Errorf("authorize: invalid client ca: %w", err)
}
clientCA = string(bs)
} else if opts.ClientCAFile != "" {
bs, err := ioutil.ReadFile(opts.ClientCAFile)
if err != nil {
return nil, fmt.Errorf("authorize: invalid client ca file: %w", err)
}
clientCA = string(bs)
}
data := map[string]interface{}{
"shared_key": opts.SharedKey,
"route_policies": opts.Policies,
"admins": opts.Administrators,
"signing_key": jwk,
"authenticate_url": opts.AuthenticateURLString,
"client_ca": clientCA,
}
return opa.New(ctx, &opa.Options{Data: data})