edge/pkg/module/auth/module.go

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package auth
import (
"net/http"
"forge.cadoles.com/arcad/edge/pkg/app"
edgeHTTP "forge.cadoles.com/arcad/edge/pkg/http"
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"forge.cadoles.com/arcad/edge/pkg/module/util"
"github.com/dop251/goja"
"github.com/pkg/errors"
"gitlab.com/wpetit/goweb/logger"
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)
const (
ClaimSubject = "sub"
ClaimIssuer = "iss"
ClaimPreferredUsername = "preferred_username"
ClaimEdgeRole = "edge_role"
ClaimEdgeTenant = "edge_tenant"
ClaimEdgeEntrypoint = "edge_entrypoint"
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)
type Module struct {
server *app.Server
getClaims GetClaimsFunc
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}
func (m *Module) Name() string {
return "auth"
}
func (m *Module) Export(export *goja.Object) {
if err := export.Set("getClaim", m.getClaim); err != nil {
panic(errors.Wrap(err, "could not set 'getClaim' function"))
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}
if err := export.Set("CLAIM_SUBJECT", ClaimSubject); err != nil {
panic(errors.Wrap(err, "could not set 'CLAIM_SUBJECT' property"))
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}
if err := export.Set("CLAIM_TENANT", ClaimEdgeTenant); err != nil {
panic(errors.Wrap(err, "could not set 'CLAIM_TENANT' property"))
}
if err := export.Set("CLAIM_ENTRYPOINT", ClaimEdgeEntrypoint); err != nil {
panic(errors.Wrap(err, "could not set 'CLAIM_ENTRYPOINT' property"))
}
if err := export.Set("CLAIM_ROLE", ClaimEdgeRole); err != nil {
panic(errors.Wrap(err, "could not set 'CLAIM_ROLE' property"))
}
if err := export.Set("CLAIM_PREFERRED_USERNAME", ClaimPreferredUsername); err != nil {
panic(errors.Wrap(err, "could not set 'CLAIM_PREFERRED_USERNAME' property"))
}
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}
func (m *Module) getClaim(call goja.FunctionCall, rt *goja.Runtime) goja.Value {
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ctx := util.AssertContext(call.Argument(0), rt)
claimName := util.AssertString(call.Argument(1), rt)
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req, ok := ctx.Value(edgeHTTP.ContextKeyOriginRequest).(*http.Request)
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if !ok {
panic(rt.ToValue(errors.New("could not find http request in context")))
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}
claim, err := m.getClaims(ctx, req, claimName)
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if err != nil {
if errors.Is(err, ErrUnauthenticated) {
return nil
}
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logger.Error(ctx, "could not retrieve claim", logger.E(errors.WithStack(err)))
return nil
}
if len(claim) == 0 || claim[0] == "" {
return nil
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}
return rt.ToValue(claim[0])
}
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func ModuleFactory(funcs ...OptionFunc) app.ServerModuleFactory {
opt := defaultOptions()
for _, fn := range funcs {
fn(opt)
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}
return func(server *app.Server) app.ServerModule {
return &Module{
server: server,
getClaims: opt.GetClaims,
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}
}
}