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dex/server/api.go

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package server
import (
"errors"
"fmt"
"log"
"golang.org/x/crypto/bcrypt"
"golang.org/x/net/context"
"github.com/coreos/dex/api"
"github.com/coreos/dex/storage"
"github.com/coreos/dex/version"
)
// apiVersion increases everytime a new call is added to the API. Clients should use this info
// to determine if the server supports specific features.
const apiVersion = 0
// NewAPI returns a server which implements the gRPC API interface.
func NewAPI(s storage.Storage) api.DexServer {
return dexAPI{s: s}
}
type dexAPI struct {
s storage.Storage
}
func (d dexAPI) CreateClient(ctx context.Context, req *api.CreateClientReq) (*api.CreateClientResp, error) {
if req.Client == nil {
return nil, errors.New("no client supplied")
}
if req.Client.Id == "" {
req.Client.Id = storage.NewID()
}
if req.Client.Secret == "" {
req.Client.Secret = storage.NewID() + storage.NewID()
}
c := storage.Client{
ID: req.Client.Id,
Secret: req.Client.Secret,
RedirectURIs: req.Client.RedirectUris,
TrustedPeers: req.Client.TrustedPeers,
Public: req.Client.Public,
Name: req.Client.Name,
LogoURL: req.Client.LogoUrl,
}
if err := d.s.CreateClient(c); err != nil {
log.Printf("api: failed to create client: %v", err)
// TODO(ericchiang): Surface "already exists" errors.
return nil, fmt.Errorf("create client: %v", err)
}
return &api.CreateClientResp{
Client: req.Client,
}, nil
}
func (d dexAPI) DeleteClient(ctx context.Context, req *api.DeleteClientReq) (*api.DeleteClientResp, error) {
err := d.s.DeleteClient(req.Id)
if err != nil {
if err == storage.ErrNotFound {
return &api.DeleteClientResp{NotFound: true}, nil
}
log.Printf("api: failed to delete client: %v", err)
return nil, fmt.Errorf("delete client: %v", err)
}
return &api.DeleteClientResp{}, nil
}
// checkCost returns an error if the hash provided does not meet minimum cost requirement
func checkCost(hash []byte) error {
actual, err := bcrypt.Cost(hash)
if err != nil {
return fmt.Errorf("parsing bcrypt hash: %v", err)
}
if actual < bcrypt.DefaultCost {
return fmt.Errorf("given hash cost = %d, does not meet minimum cost requirement = %d", actual, bcrypt.DefaultCost)
}
return nil
}
func (d dexAPI) CreatePassword(ctx context.Context, req *api.CreatePasswordReq) (*api.CreatePasswordResp, error) {
if req.Password == nil {
return nil, errors.New("no password supplied")
}
if req.Password.UserId == "" {
return nil, errors.New("no user ID supplied")
}
if req.Password.Hash != nil {
if err := checkCost(req.Password.Hash); err != nil {
return nil, err
}
} else {
return nil, errors.New("no hash of password supplied")
}
p := storage.Password{
Email: req.Password.Email,
Hash: req.Password.Hash,
Username: req.Password.Username,
UserID: req.Password.UserId,
}
if err := d.s.CreatePassword(p); err != nil {
log.Printf("api: failed to create password: %v", err)
return nil, fmt.Errorf("create password: %v", err)
}
return &api.CreatePasswordResp{}, nil
}
func (d dexAPI) UpdatePassword(ctx context.Context, req *api.UpdatePasswordReq) (*api.UpdatePasswordResp, error) {
if req.Email == "" {
return nil, errors.New("no email supplied")
}
if req.NewHash == nil && req.NewUsername == "" {
return nil, errors.New("nothing to update")
}
if req.NewHash != nil {
if err := checkCost(req.NewHash); err != nil {
return nil, err
}
}
updater := func(old storage.Password) (storage.Password, error) {
if req.NewHash != nil {
old.Hash = req.NewHash
}
if req.NewUsername != "" {
old.Username = req.NewUsername
}
return old, nil
}
if err := d.s.UpdatePassword(req.Email, updater); err != nil {
if err == storage.ErrNotFound {
return &api.UpdatePasswordResp{NotFound: true}, nil
}
log.Printf("api: failed to update password: %v", err)
return nil, fmt.Errorf("update password: %v", err)
}
return &api.UpdatePasswordResp{}, nil
}
func (d dexAPI) DeletePassword(ctx context.Context, req *api.DeletePasswordReq) (*api.DeletePasswordResp, error) {
if req.Email == "" {
return nil, errors.New("no email supplied")
}
err := d.s.DeletePassword(req.Email)
if err != nil {
if err == storage.ErrNotFound {
return &api.DeletePasswordResp{NotFound: true}, nil
}
log.Printf("api: failed to delete password: %v", err)
return nil, fmt.Errorf("delete password: %v", err)
}
return &api.DeletePasswordResp{}, nil
}
func (d dexAPI) GetVersion(ctx context.Context, req *api.VersionReq) (*api.VersionResp, error) {
return &api.VersionResp{
Server: version.Version,
Api: apiVersion,
}, nil
}