103 lines
2.8 KiB
Go
103 lines
2.8 KiB
Go
// Copyright (c) 2025 Probo Inc <hello@getprobo.com>.
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//
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// Permission to use, copy, modify, and/or distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice appear in all copies.
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//
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// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
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// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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// AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
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// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
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// OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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// PERFORMANCE OF THIS SOFTWARE.
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package connect_v1
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import (
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"context"
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"fmt"
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"net/http"
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"github.com/99designs/gqlgen/graphql"
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"github.com/vektah/gqlparser/v2/gqlerror"
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"go.gearno.de/kit/log"
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"go.probo.inc/probo/pkg/iam"
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"go.probo.inc/probo/pkg/securecookie"
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"go.probo.inc/probo/pkg/server/api/connect/v1/schema"
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"go.probo.inc/probo/pkg/server/api/connect/v1/types"
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"go.probo.inc/probo/pkg/server/gqlutils"
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)
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var (
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ErrForbidden = &gqlerror.Error{
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Message: "You are not authorized to access this resource",
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Extensions: map[string]any{
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"code": "FORBIDDEN",
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},
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}
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ErrUnauthorized = &gqlerror.Error{
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Message: "You are not authorized to access this resource",
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Extensions: map[string]any{
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"code": "UNAUTHORIZED",
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},
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}
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ErrAlreadyAuthenticated = &gqlerror.Error{
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Message: "authentication not allowed for this resource/action",
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Extensions: map[string]any{
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"code": "ALREADY_AUTHENTICATED",
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},
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}
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)
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func SessionDirective(ctx context.Context, obj any, next graphql.Resolver, required types.SessionRequirement) (any, error) {
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session := SessionFromContext(ctx)
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switch required {
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case types.SessionRequirementOptional:
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case types.SessionRequirementPresent:
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if session == nil {
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return nil, ErrUnauthorized
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}
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case types.SessionRequirementNone:
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if session != nil {
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return nil, ErrAlreadyAuthenticated
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}
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}
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return next(ctx)
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}
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func IsViewerDirective(ctx context.Context, obj any, next graphql.Resolver) (any, error) {
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identity := UserFromContext(ctx)
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resolvedIdentity, ok := obj.(*types.Identity)
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if !ok {
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panic(fmt.Errorf("@isViewer called on non-identity object: %T", obj))
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}
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if identity.ID != resolvedIdentity.ID {
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return nil, ErrForbidden
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}
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return next(ctx)
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}
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func NewGraphQLHandler(svc *iam.Service, logger *log.Logger, cookieConfig securecookie.Config) http.Handler {
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config := schema.Config{
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Resolvers: &Resolver{
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iam: svc,
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cookieConfig: cookieConfig,
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},
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Directives: schema.DirectiveRoot{
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Session: SessionDirective,
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IsViewer: IsViewerDirective,
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},
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}
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es := schema.NewExecutableSchema(config)
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gqlh := gqlutils.NewHandler(es, logger)
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return gqlh
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}
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