Files
probo/pkg/server/api/authz/authorization.go
Émile Ré 1257347df9 Extract authn & authz utils
Signed-off-by: Émile Ré <emile@getprobo.com>
2026-01-17 12:34:03 -08:00

85 lines
2.3 KiB
Go

// Copyright (c) 2025 Probo Inc <hello@getprobo.com>.
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
// AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
// OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
// PERFORMANCE OF THIS SOFTWARE.
package authz
import (
"context"
"errors"
"go.gearno.de/kit/log"
"go.probo.inc/probo/pkg/gid"
"go.probo.inc/probo/pkg/iam"
"go.probo.inc/probo/pkg/server/api/authn"
"go.probo.inc/probo/pkg/server/gqlutils"
)
type (
AuthorizeFuncOption func(*iam.AuthorizeParams)
AuthorizeFunc func(context.Context, gid.GID, string, ...AuthorizeFuncOption) error
)
func WithAttr(key, value string) AuthorizeFuncOption {
return func(params *iam.AuthorizeParams) {
params.ResourceAttributes[key] = value
}
}
func WithSession(sessionID *gid.GID) AuthorizeFuncOption {
return func(params *iam.AuthorizeParams) {
params.Session = sessionID
}
}
func NewAuthorizeFunc(
svc *iam.Service,
logger *log.Logger,
) AuthorizeFunc {
return func(
ctx context.Context,
objectID gid.GID,
action string,
options ...AuthorizeFuncOption,
) error {
identity := authn.IdentityFromContext(ctx)
session := authn.SessionFromContext(ctx)
params := iam.AuthorizeParams{
Principal: identity.ID,
Resource: objectID,
Action: action,
ResourceAttributes: make(map[string]string),
}
if session != nil {
params.Session = &session.ID
}
for _, option := range options {
option(&params)
}
if err := svc.Authorizer.Authorize(ctx, params); err != nil {
var errInsufficientPermissions *iam.ErrInsufficientPermissions
if errors.As(err, &errInsufficientPermissions) {
return gqlutils.Forbidden(ctx, err)
}
logger.ErrorCtx(ctx, "cannot authorize", log.Error(err))
return gqlutils.Internal(ctx)
}
return nil
}
}