forked from heroiclabs/nakama
/
api_authenticate.go
273 lines (228 loc) · 10.9 KB
/
api_authenticate.go
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// Copyright 2018 The Nakama Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package server
import (
"math/rand"
"regexp"
"strings"
"time"
"github.com/dgrijalva/jwt-go"
"github.com/heroiclabs/nakama/api"
"github.com/satori/go.uuid"
"golang.org/x/net/context"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
)
var (
invalidCharsRegex = regexp.MustCompilePOSIX("([[:cntrl:]]|[[:space:]])+")
emailRegex = regexp.MustCompile("^.+@.+\\..+$")
)
func (s *ApiServer) AuthenticateCustom(ctx context.Context, in *api.AuthenticateCustomRequest) (*api.Session, error) {
if in.Account == nil || in.Account.Id == "" {
return nil, status.Error(codes.InvalidArgument, "Custom ID is required.")
} else if invalidCharsRegex.MatchString(in.Account.Id) {
return nil, status.Error(codes.InvalidArgument, "Custom ID invalid, no spaces or control characters allowed.")
} else if len(in.Account.Id) < 6 || len(in.Account.Id) > 128 {
return nil, status.Error(codes.InvalidArgument, "Custom ID invalid, must be 6-128 bytes.")
}
username := in.Username
if username == "" {
username = generateUsername()
} else if invalidCharsRegex.MatchString(username) {
return nil, status.Error(codes.InvalidArgument, "Username invalid, no spaces or control characters allowed.")
} else if len(username) > 128 {
return nil, status.Error(codes.InvalidArgument, "Username invalid, must be 1-128 bytes.")
}
create := in.Create == nil || in.Create.Value
dbUserID, dbUsername, created, err := AuthenticateCustom(s.logger, s.db, in.Account.Id, username, create)
if err != nil {
return nil, err
}
token := generateToken(s.config, dbUserID, dbUsername)
return &api.Session{Created: created, Token: token}, nil
}
func (s *ApiServer) AuthenticateDevice(ctx context.Context, in *api.AuthenticateDeviceRequest) (*api.Session, error) {
if in.Account == nil || in.Account.Id == "" {
return nil, status.Error(codes.InvalidArgument, "Device ID is required.")
} else if invalidCharsRegex.MatchString(in.Account.Id) {
return nil, status.Error(codes.InvalidArgument, "Device ID invalid, no spaces or control characters allowed.")
} else if len(in.Account.Id) < 10 || len(in.Account.Id) > 128 {
return nil, status.Error(codes.InvalidArgument, "Device ID invalid, must be 10-128 bytes.")
}
username := in.Username
if username == "" {
username = generateUsername()
} else if invalidCharsRegex.MatchString(username) {
return nil, status.Error(codes.InvalidArgument, "Username invalid, no spaces or control characters allowed.")
} else if len(username) > 128 {
return nil, status.Error(codes.InvalidArgument, "Username invalid, must be 1-128 bytes.")
}
create := in.Create == nil || in.Create.Value
dbUserID, dbUsername, created, err := AuthenticateDevice(s.logger, s.db, in.Account.Id, username, create)
if err != nil {
return nil, err
}
token := generateToken(s.config, dbUserID, dbUsername)
return &api.Session{Created: created, Token: token}, nil
}
func (s *ApiServer) AuthenticateEmail(ctx context.Context, in *api.AuthenticateEmailRequest) (*api.Session, error) {
email := in.Account
if email == nil || email.Email == "" || email.Password == "" {
return nil, status.Error(codes.InvalidArgument, "Email address and password is required.")
} else if invalidCharsRegex.MatchString(email.Email) {
return nil, status.Error(codes.InvalidArgument, "Invalid email address, no spaces or control characters allowed.")
} else if len(email.Password) < 8 {
return nil, status.Error(codes.InvalidArgument, "Password must be longer than 8 characters.")
} else if !emailRegex.MatchString(email.Email) {
return nil, status.Error(codes.InvalidArgument, "Invalid email address format.")
} else if len(email.Email) < 10 || len(email.Email) > 255 {
return nil, status.Error(codes.InvalidArgument, "Invalid email address, must be 10-255 bytes.")
}
cleanEmail := strings.ToLower(email.Email)
username := in.Username
if username == "" {
username = generateUsername()
} else if invalidCharsRegex.MatchString(username) {
return nil, status.Error(codes.InvalidArgument, "Username invalid, no spaces or control characters allowed.")
} else if len(username) > 128 {
return nil, status.Error(codes.InvalidArgument, "Username invalid, must be 1-128 bytes.")
}
create := in.Create == nil || in.Create.Value
dbUserID, dbUsername, created, err := AuthenticateEmail(s.logger, s.db, cleanEmail, email.Password, username, create)
if err != nil {
return nil, err
}
token := generateToken(s.config, dbUserID, dbUsername)
return &api.Session{Created: created, Token: token}, nil
}
func (s *ApiServer) AuthenticateFacebook(ctx context.Context, in *api.AuthenticateFacebookRequest) (*api.Session, error) {
if in.Account == nil || in.Account.Token == "" {
return nil, status.Error(codes.InvalidArgument, "Facebook access token is required.")
}
username := in.Username
if username == "" {
username = generateUsername()
} else if invalidCharsRegex.MatchString(username) {
return nil, status.Error(codes.InvalidArgument, "Username invalid, no spaces or control characters allowed.")
} else if len(username) > 128 {
return nil, status.Error(codes.InvalidArgument, "Username invalid, must be 1-128 bytes.")
}
create := in.Create == nil || in.Create.Value
dbUserID, dbUsername, created, err := AuthenticateFacebook(s.logger, s.db, s.socialClient, in.Account.Token, username, create)
if err != nil {
return nil, err
}
// Import friends if requested.
if in.Import == nil || in.Import.Value {
importFacebookFriends(s.logger, s.db, s.router, s.socialClient, uuid.FromStringOrNil(dbUserID), dbUsername, in.Account.Token, false)
}
token := generateToken(s.config, dbUserID, dbUsername)
return &api.Session{Created: created, Token: token}, nil
}
func (s *ApiServer) AuthenticateGameCenter(ctx context.Context, in *api.AuthenticateGameCenterRequest) (*api.Session, error) {
if in.Account == nil {
return nil, status.Error(codes.InvalidArgument, "GameCenter access credentials are required.")
} else if in.Account.BundleId == "" {
return nil, status.Error(codes.InvalidArgument, "GameCenter bundle ID is required.")
} else if in.Account.PlayerId == "" {
return nil, status.Error(codes.InvalidArgument, "GameCenter player ID is required.")
} else if in.Account.PublicKeyUrl == "" {
return nil, status.Error(codes.InvalidArgument, "GameCenter public key URL is required.")
} else if in.Account.Salt == "" {
return nil, status.Error(codes.InvalidArgument, "GameCenter salt is required.")
} else if in.Account.Signature == "" {
return nil, status.Error(codes.InvalidArgument, "GameCenter signature is required.")
} else if in.Account.TimestampSeconds == 0 {
return nil, status.Error(codes.InvalidArgument, "GameCenter timestamp is required.")
}
username := in.Username
if username == "" {
username = generateUsername()
} else if invalidCharsRegex.MatchString(username) {
return nil, status.Error(codes.InvalidArgument, "Username invalid, no spaces or control characters allowed.")
} else if len(username) > 128 {
return nil, status.Error(codes.InvalidArgument, "Username invalid, must be 1-128 bytes.")
}
create := in.Create == nil || in.Create.Value
dbUserID, dbUsername, created, err := AuthenticateGameCenter(s.logger, s.db, s.socialClient, in.Account.PlayerId, in.Account.BundleId, in.Account.TimestampSeconds, in.Account.Salt, in.Account.Signature, in.Account.PublicKeyUrl, username, create)
if err != nil {
return nil, err
}
token := generateToken(s.config, dbUserID, dbUsername)
return &api.Session{Created: created, Token: token}, nil
}
func (s *ApiServer) AuthenticateGoogle(ctx context.Context, in *api.AuthenticateGoogleRequest) (*api.Session, error) {
if in.Account == nil || in.Account.Token == "" {
return nil, status.Error(codes.InvalidArgument, "Google access token is required.")
}
username := in.Username
if username == "" {
username = generateUsername()
} else if invalidCharsRegex.MatchString(username) {
return nil, status.Error(codes.InvalidArgument, "Username invalid, no spaces or control characters allowed.")
} else if len(username) > 128 {
return nil, status.Error(codes.InvalidArgument, "Username invalid, must be 1-128 bytes.")
}
create := in.Create == nil || in.Create.Value
dbUserID, dbUsername, created, err := AuthenticateGoogle(s.logger, s.db, s.socialClient, in.Account.Token, username, create)
if err != nil {
return nil, err
}
token := generateToken(s.config, dbUserID, dbUsername)
return &api.Session{Created: created, Token: token}, nil
}
func (s *ApiServer) AuthenticateSteam(ctx context.Context, in *api.AuthenticateSteamRequest) (*api.Session, error) {
if s.config.GetSocial().Steam.PublisherKey == "" || s.config.GetSocial().Steam.AppID == 0 {
return nil, status.Error(codes.FailedPrecondition, "Steam authentication is not configured.")
}
if in.Account == nil || in.Account.Token == "" {
return nil, status.Error(codes.InvalidArgument, "Steam access token is required.")
}
username := in.Username
if username == "" {
username = generateUsername()
} else if invalidCharsRegex.MatchString(username) {
return nil, status.Error(codes.InvalidArgument, "Username invalid, no spaces or control characters allowed.")
} else if len(username) > 128 {
return nil, status.Error(codes.InvalidArgument, "Username invalid, must be 1-128 bytes.")
}
create := in.Create == nil || in.Create.Value
dbUserID, dbUsername, created, err := AuthenticateSteam(s.logger, s.db, s.socialClient, s.config.GetSocial().Steam.AppID, s.config.GetSocial().Steam.PublisherKey, in.Account.Token, username, create)
if err != nil {
return nil, err
}
token := generateToken(s.config, dbUserID, dbUsername)
return &api.Session{Created: created, Token: token}, nil
}
func generateToken(config Config, userID, username string) string {
exp := time.Now().UTC().Add(time.Duration(config.GetSession().TokenExpirySec) * time.Second).Unix()
return generateTokenWithExpiry(config, userID, username, exp)
}
func generateTokenWithExpiry(config Config, userID, username string, exp int64) string {
token := jwt.NewWithClaims(jwt.SigningMethodHS256, jwt.MapClaims{
"uid": userID,
"exp": exp,
"usn": username,
})
signedToken, _ := token.SignedString([]byte(config.GetSession().EncryptionKey))
return signedToken
}
func generateUsername() string {
const usernameAlphabet = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
b := make([]byte, 10)
for i := range b {
b[i] = usernameAlphabet[rand.Intn(len(usernameAlphabet))]
}
return string(b)
}