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main.go
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main.go
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package main
import (
"context"
"crypto/rsa"
"database/sql"
hTmpl "html/template"
"io/ioutil"
"net/http"
"os"
"strings"
textTmpl "text/template"
"time"
"github.com/coreos/go-oidc/v3/oidc"
"github.com/golang-jwt/jwt/v4"
"github.com/mailgun/mailgun-go/v4"
"impractical.co/credentials/envvar"
yall "yall.in"
"yall.in/colour"
"lockbox.dev/accounts"
accountsv1 "lockbox.dev/accounts/apiv1"
accountsPostgres "lockbox.dev/accounts/storers/postgres"
clientsv1 "lockbox.dev/clients/apiv1"
clientsPostgres "lockbox.dev/clients/storers/postgres"
"lockbox.dev/cmd/lockbox-apid/apiv1"
"lockbox.dev/grants"
grantsPostgres "lockbox.dev/grants/storers/postgres"
"lockbox.dev/hmac"
"lockbox.dev/oauth2"
"lockbox.dev/scopes"
scopesv1 "lockbox.dev/scopes/apiv1"
scopesPostgres "lockbox.dev/scopes/storers/postgres"
"lockbox.dev/sessions"
"lockbox.dev/tokens"
tokensPostgres "lockbox.dev/tokens/storers/postgres"
)
func pathOrContents(in string) (string, error) {
if _, err := os.Stat(in); err == nil {
contents, err := ioutil.ReadFile(in)
if err != nil {
return string(contents), err
}
return string(contents), nil
}
return in, nil
}
func main() {
ctx := context.Background()
log := yall.New(colour.New(os.Stdout, yall.Debug))
// TODO: use gcp.Credentials instead, for encrypted credentials stored in GCP
creds := envvar.Credentials{}
// set up postgres
connString, err := creds.Get(ctx, "PG_DB")
if err != nil {
log.Error(err.Error())
os.Exit(1)
}
pg, err := sql.Open("postgres", string(connString))
if err != nil {
log.Error(err.Error())
os.Exit(1)
}
// set up JWT private key
privateKeyInput, err := creds.Get(ctx, "JWT_PRIVATE_KEY")
if err != nil {
log.Error(err.Error())
os.Exit(1)
}
privateKeyStr, err := pathOrContents(string(privateKeyInput))
if err != nil {
log.WithError(err).Error("Error loading private key")
os.Exit(1)
}
privateKey, err := jwt.ParseRSAPrivateKeyFromPEM([]byte(privateKeyStr))
if err != nil {
log.WithError(err).Error("Error parsing private key")
os.Exit(1)
}
// set up mailgun client
mailgunAPIKey, err := creds.Get(ctx, "MAILGUN_API_KEY")
if err != nil {
log.Error(err.Error())
os.Exit(1)
}
plainTextTmpl := textTmpl.Must(textTmpl.New("body").Parse(`Please click this link to log in: {{.Code}}`))
htmlTmpl := hTmpl.Must(hTmpl.New("body").Parse(`<html><body><p>Please click this link to log in <a href="{{.Code}}">{{.Code}}</a>.</p></body></html>`))
// setup the secret we'll use for authenticating requests to the clients service
hmacSecret, err := creds.Get(ctx, "CLIENTS_SECRET")
if err != nil {
log.Error(err.Error())
os.Exit(1)
}
// set up client IDs and library to verify Google accounts with
googleClientIDsStr := os.Getenv("GOOGLE_CLIENT_IDS")
if googleClientIDsStr == "" {
log.Error("GOOGLE_CLIENT_IDS must be set to the client IDs to accept Google ID tokens for, comma separated")
os.Exit(1)
}
googleClientIDs := strings.Split(googleClientIDsStr, ",")
oauthProvider, err := oidc.NewProvider(context.Background(), "https://accounts.google.com")
if err != nil {
log.WithError(err).Error("Error setting up Google ID token provider")
os.Exit(1)
}
// set up the sessions package
sess := sessions.Dependencies{
JWTPrivateKey: privateKey,
JWTPublicKey: privateKey.Public().(*rsa.PublicKey),
ServiceID: "https://test.lockbox.dev",
}
// set up the accounts API
acctsv1 := accountsv1.APIv1{
Dependencies: accounts.Dependencies{
Storer: accountsPostgres.NewStorer(ctx, pg),
},
Log: log,
Sessions: sess,
}
// set up the scopes API
scopsv1 := scopesv1.APIv1{
Dependencies: scopes.Dependencies{
Storer: scopesPostgres.NewStorer(ctx, pg),
},
Log: log,
Signer: hmac.Signer{
MaxSkew: time.Hour,
OrgKey: "LOCKBOXTEST",
Key: "lockbox-test",
Secret: hmacSecret,
},
}
// set up the clients API
clients1 := clientsv1.APIv1{
Storer: clientsPostgres.NewStorer(ctx, pg),
Log: log,
Signer: hmac.Signer{
MaxSkew: time.Hour,
OrgKey: "LOCKBOXTEST",
Key: "lockbox-test",
Secret: hmacSecret,
},
}
// set up the OAuth2 API
oauth := oauth2.Service{
GoogleIDVerifier: oauthProvider.Verifier(&oidc.Config{
SkipClientIDCheck: true,
}),
GoogleClients: googleClientIDs,
TokenExpiresIn: 3600,
Accounts: acctsv1.Dependencies,
Clients: clients1.Storer,
Grants: grants.Dependencies{
Storer: grantsPostgres.NewStorer(ctx, pg),
},
Refresh: tokens.Dependencies{
Storer: tokensPostgres.NewStorer(ctx, pg),
JWTPrivateKey: privateKey,
JWTPublicKey: privateKey.Public().(*rsa.PublicKey),
ServiceID: "https://test.lockbox.dev",
},
Scopes: scopsv1.Dependencies,
Sessions: sess,
Log: log,
Emailer: oauth2.Mailgun{
From: "lockbox.dev testing <test@mg.lockbox.dev>",
Subject: "Your lockbox.dev login link",
PlainTextTmpl: plainTextTmpl,
HTMLTmpl: htmlTmpl,
Client: mailgun.NewMailgun("mg.lockbox.dev", string(mailgunAPIKey)),
},
}
// set up our top-level API
v1 := apiv1.APIv1{
Accounts: acctsv1,
Clients: clients1,
Scopes: scopsv1,
OAuth2: oauth,
Log: log,
Sessions: sess,
}
http.Handle("/", v1.Server(""))
err = http.ListenAndServe(":12345", nil)
if err != nil {
log.WithError(err).Error("error starting server")
os.Exit(1)
}
}