More changes

api/account.go

@@ -1,14 +1,28 @@
 package api
 
 import (
+	"bytes"
+	"crypto/rand"
+	"database/sql"
 	"encoding/base64"
 	"encoding/json"
 	"fmt"
 	"net/http"
+	"regexp"
 
 	"github.com/Flashfyre/pokerogue-server/db"
+	"golang.org/x/crypto/argon2"
 )
 
+const (
+	argonTime = 1
+	argonMemory = 256*1024
+	argonThreads = 4
+	argonKeyLength = 32
+)
+
+var isValidUsername = regexp.MustCompile(`^\w{6,16}$`).MatchString
+
 // /api/account/info - get account info
 
 type AccountInfoResponse struct{
@@ -22,7 +36,7 @@ func HandleAccountInfo(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	username, err := db.GetAccountInfoFromToken(token)
+	username, err := db.GetUsernameFromToken(token)
 	if err != nil {
 		http.Error(w, err.Error(), http.StatusBadRequest)
 		return
@@ -40,7 +54,6 @@ func HandleAccountInfo(w http.ResponseWriter, r *http.Request) {
 // /api/account/register - register account
 
 type AccountRegisterRequest GenericAuthRequest
-type AccountRegisterResponse GenericAuthResponse
 
 func HandleAccountRegister(w http.ResponseWriter, r *http.Request) {
 	var request AccountRegisterRequest
@@ -50,7 +63,39 @@ func HandleAccountRegister(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
+	if isValidUsername(request.Username) {
+		http.Error(w, "invalid username", http.StatusBadRequest)
+		return
+	}
 
+	if len(request.Password) < 6 {
+		http.Error(w, "invalid password", http.StatusBadRequest)
+		return
+	}
+
+	uuid := make([]byte, 16)
+
+	_, err = rand.Read(uuid)
+	if err != nil {
+		http.Error(w, fmt.Sprintf("failed to generate uuid: %s", err), http.StatusInternalServerError)
+		return
+	}
+
+	salt := make([]byte, 16)
+
+	_, err = rand.Read(salt)
+	if err != nil {
+		http.Error(w, fmt.Sprintf("failed to generate salt: %s", err), http.StatusInternalServerError)
+		return
+	}
+
+	err = db.AddAccountRecord(uuid, request.Username, argon2.IDKey([]byte(request.Password), salt, argonTime, argonMemory, argonThreads, argonKeyLength), salt)
+	if err != nil {
+		http.Error(w, "failed to add account record", http.StatusInternalServerError)
+		return
+	}
+
+	w.WriteHeader(http.StatusOK)
 }
 
 // /api/account/login - log into account
@@ -59,11 +104,86 @@ type AccountLoginRequest GenericAuthRequest
 type AccountLoginResponse GenericAuthResponse
 
 func HandleAccountLogin(w http.ResponseWriter, r *http.Request) {
+	var request AccountLoginRequest
+	err := json.NewDecoder(r.Body).Decode(&request)
+	if err != nil {
+		http.Error(w, fmt.Sprintf("failed to decode request body: %s", err), http.StatusBadRequest)
+		return
+	}
 
+	if isValidUsername(request.Username) {
+		http.Error(w, "invalid username", http.StatusBadRequest)
+		return
+	}
+
+	if len(request.Password) < 6 {
+		http.Error(w, "invalid password", http.StatusBadRequest)
+		return
+	}
+
+	key, salt, err := db.GetAccountKeySaltFromUsername(request.Username)
+	if err != nil {
+		if err == sql.ErrNoRows {
+			http.Error(w, "account doesn't exist", http.StatusBadRequest)
+			return
+		}
+
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+
+	if !bytes.Equal(key, argon2.IDKey([]byte(request.Password), salt, argonTime, argonMemory, argonThreads, argonKeyLength)) {
+		http.Error(w, "password doesn't match", http.StatusBadRequest)
+		return
+	}
+
+	token := make([]byte, 16)
+
+	_, err = rand.Read(token)
+	if err != nil {
+		http.Error(w, fmt.Sprintf("failed to generate token: %s", err), http.StatusInternalServerError)
+		return
+	}
+
+	err = db.AddAccountSession(request.Username, token)
+	if err != nil {
+		http.Error(w, "failed to add account session", http.StatusInternalServerError)
+		return
+	}
+
+	response, err := json.Marshal(AccountLoginResponse{Token: base64.StdEncoding.EncodeToString(token)})
+	if err != nil {
+		http.Error(w, fmt.Sprintf("failed to marshal response json: %s", err), http.StatusInternalServerError)
+		return
+	}
+
+	w.Write(response)
 }
 
 // /api/account/logout - log out of account
 
 func HandleAccountLogout(w http.ResponseWriter, r *http.Request) {
+	token, err := base64.StdEncoding.DecodeString(r.Header.Get("Authorization"))
+	if err != nil {
+		http.Error(w, fmt.Sprintf("failed to decode token: %s", err), http.StatusBadRequest)
+		return
+	}
 
+	if len(token) != 32 {
+		http.Error(w, "invalid token", http.StatusBadRequest)
+		return
+	}
+
+	err = db.RemoveSessionFromToken(token)
+	if err != nil {
+		if err == sql.ErrNoRows {
+			http.Error(w, "token not found", http.StatusBadRequest)
+			return
+		}
+
+		http.Error(w, "failed to remove account session", http.StatusInternalServerError)
+		return
+	}
+
+	w.WriteHeader(http.StatusOK)
 }

api/generic.go

@@ -1,11 +1,5 @@
 package api
 
-// error
-
-type ErrorResponse struct{
-	Message string `json:"message"`
-}
-
 // auth
 
 type GenericAuthRequest struct {

db/account.go

@@ -2,19 +2,69 @@ package db
 
 import (
 	"database/sql"
-	"fmt"
 )
 
-func GetAccountInfoFromToken(token []byte) (string, error) {
+func AddAccountRecord(uuid []byte, username string, key, salt []byte) error {
+	_, err := handle.Exec("INSERT INTO accounts (uuid, username, key, salt, registered) VALUES (?, ?, ?, ?, UTC_TIMESTAMP())", uuid, username, key, salt)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func AddAccountSession(username string, token []byte) error {
+	_, err := handle.Exec("INSERT INTO sessions (token, uuid, expire) SELECT a.uuid, ?, DATE_ADD(UTC_TIMESTAMP(), INTERVAL 1 WEEK) FROM accounts a WHERE a.username = ?", token, username)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func GetUsernameFromToken(token []byte) (string, error) {
 	var username string
-	err := handle.QueryRow("SELECT username FROM accounts WHERE uuid IN (SELECT uuid FROM sessions WHERE token = ? AND expire > UTC_TIMESTAMP())").Scan(&username)
+	err := handle.QueryRow("SELECT a.username FROM accounts a JOIN sessions s ON s.uuid = a.uuid WHERE s.token = ? AND s.expire > UTC_TIMESTAMP()").Scan(&username)
 	if err != nil {
 		if err == sql.ErrNoRows {
-			return "", fmt.Errorf("invalid token")
+			return "", err
 		}
 
-		return "", fmt.Errorf("query failed: %s", err)
+		return "", err
 	}
 
 	return username, nil
 }
+
+func GetAccountKeySaltFromUsername(username string) ([]byte, []byte, error) {
+	var key, salt []byte
+	err := handle.QueryRow("SELECT key, salt FROM accounts WHERE username = ?", username).Scan(&key, &salt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	return key, salt, nil
+}
+
+func GetUUIDFromToken(token []byte) ([]byte, error) {
+	var uuid []byte
+	err := handle.QueryRow("SELECT uuid FROM sessions WHERE token = ? AND expire > UTC_TIMESTAMP()", token).Scan(&uuid)
+	if err != nil {
+		if err == sql.ErrNoRows {
+			return nil, err
+		}
+
+		return nil, err
+	}
+
+	return uuid, nil
+}
+
+func RemoveSessionFromToken(token []byte) error {
+	_, err := handle.Exec("DELETE FROM sessions WHERE token = ?", token)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}

db/db.go

@@ -17,4 +17,3 @@ func Init(username, password, protocol, address, database string) error {
 
 	return nil
 }
-

go.mod

@@ -1,3 +1,7 @@
 module github.com/Flashfyre/pokerogue-server
 
 go 1.21.4
+
+require golang.org/x/crypto v0.16.0
+
+require golang.org/x/sys v0.15.0 // indirect

go.sum

@@ -0,0 +1,4 @@
+golang.org/x/crypto v0.16.0 h1:mMMrFzRSCF0GvB7Ne27XVtVAaXLrPmgPC7/v0tkwHaY=
+golang.org/x/crypto v0.16.0/go.mod h1:gCAAfMLgwOJRpTjQ2zCCt2OcSfYMTeZVSRtQlPC7Nq4=
+golang.org/x/sys v0.15.0 h1:h48lPFYpsTvQJZF4EKyI4aLHaev3CxivZmv7yZig9pc=
+golang.org/x/sys v0.15.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=