77 lines
1.7 KiB
Go
77 lines
1.7 KiB
Go
// Copyright (C) 2019 Storj Labs, Inc.
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// See LICENSE for copying information.
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package authorization
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import (
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"context"
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"fmt"
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"github.com/zeebo/errs"
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"go.uber.org/zap"
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)
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// ErrService is the default error class for the authorization service.
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var ErrService = errs.Class("authorization service error")
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// Service is the authorization service.
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type Service struct {
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log *zap.Logger
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db *DB
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}
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// NewService creates a new authorization service.
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func NewService(log *zap.Logger, db *DB) *Service {
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return &Service{
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log: log,
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db: db,
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}
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}
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// GetOrCreate will return an authorization for the given user ID.
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func (service *Service) GetOrCreate(ctx context.Context, userID string) (_ *Token, err error) {
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defer mon.Task()(&ctx)(&err)
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if userID == "" {
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msg := "missing user ID"
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err = ErrService.New(msg)
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return nil, err
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}
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existingGroup, err := service.db.Get(ctx, userID)
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if err != nil && !ErrNotFound.Has(err) {
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msg := "error getting authorizations"
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err = ErrService.Wrap(err)
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service.log.Error(msg, zap.Error(err))
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return nil, err
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}
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if existingGroup != nil && len(existingGroup) > 0 {
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for _, authorization := range existingGroup {
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if authorization.Claim == nil {
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return &authorization.Token, nil
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}
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}
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}
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createdGroup, err := service.db.Create(ctx, userID, 1)
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if err != nil {
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msg := "error creating authorization"
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err = ErrService.Wrap(err)
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service.log.Error(msg, zap.Error(err))
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return nil, err
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}
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groupLen := len(createdGroup)
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if groupLen != 1 {
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clientMsg := "error creating authorization"
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internalMsg := clientMsg + fmt.Sprintf("; expected 1, got %d", groupLen)
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service.log.Error(internalMsg)
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return nil, ErrEndpoint.New("%s", clientMsg)
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}
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authorization := createdGroup[0]
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return &authorization.Token, nil
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}
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