/
main.go
55 lines (48 loc) · 1.49 KB
/
main.go
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package main
import (
"context"
"crypto/sha256"
"encoding/hex"
"fmt"
"github.com/aidansteele/jwtex"
"github.com/aidansteele/jwtex/kmssigner"
"github.com/aws/aws-lambda-go/lambda"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/endpoints"
"github.com/aws/aws-sdk-go/aws/request"
"github.com/aws/aws-sdk-go/aws/session"
"github.com/aws/aws-sdk-go/service/kms"
lapi "github.com/aws/aws-sdk-go/service/lambda"
"github.com/aws/aws-sdk-go/service/ssm"
"github.com/glassechidna/lambdahttp/pkg/gowrap"
"os"
)
func main() {
keyId := os.Getenv("KMS_KEY_ID")
ssmPrefix := os.Getenv("SSM_PREFIX")
issuerUrl := os.Getenv("ISSUER_URL")
mapperArn := os.Getenv("MAPPER_ARN")
sess, err := session.NewSessionWithOptions(session.Options{
SharedConfigState: session.SharedConfigEnable,
Config: *aws.NewConfig().WithSTSRegionalEndpoint(endpoints.RegionalSTSEndpoint),
})
if err != nil {
fmt.Printf("%+v\n", err)
panic(err)
}
sess.Handlers.Build.PushBack(request.MakeAddToUserAgentHandler("jwtex", "0.1"))
signer, err := kmssigner.New(kms.New(sess), keyId)
if err != nil {
fmt.Printf("%+v\n", err)
panic(err)
}
verifiers, err := verifiersFromParameterStore(context.Background(), ssm.New(sess), ssmPrefix)
if err != nil {
fmt.Printf("%+v\n", err)
panic(err)
}
sum224 := sha256.Sum224([]byte(keyId))
kid := hex.EncodeToString(sum224[:])
srv := jwtex.NewServer(issuerUrl, kid, signer, verifiers, mapperArn, lapi.New(sess))
lambda.StartHandler(gowrap.ApiGateway(srv))
}