[WIP]

2025-03-18 16:22:26 +02:00
parent ffdefae94f
commit 64f59ea232
9 changed files with 213 additions and 160 deletions
--- a/auth/auth.go
+++ b/auth/auth.go
@@ -1,7 +1,6 @@
 package auth

 import (
-	"context"
 	"encoding/json"
 	"fmt"
 	"log"
@@ -9,27 +8,20 @@ import (
 	"strings"
 	"time"

+	"git.acooldomain.co/server-manager/backend-kubernetes-go/db_handler/mongo"
 	"git.acooldomain.co/server-manager/backend-kubernetes-go/dbhandler"
 	"git.acooldomain.co/server-manager/backend-kubernetes-go/models"
 	"github.com/gin-gonic/gin"
 	"github.com/golang-jwt/jwt"
-	"go.mongodb.org/mongo-driver/bson"
-	"go.mongodb.org/mongo-driver/mongo"
-	"go.mongodb.org/mongo-driver/mongo/options"
-	"golang.org/x/crypto/bcrypt"
 )

-var secret []byte
-var method string
-var DOMAIN string
-
 type Connection struct {
-	usersDbHandler         dbhandler.UsersDBHandler
-	authorizationDbHandler dbhandler.AuthorizationDbHandler
+	config models.GlobalConfig

-	authMode          models.AuthMode
-	userAuthDbHandler *dbhandler.UserPassAuthanticationDbHandler
-	OidcAuthDbHandler *dbhandler.OidcAuthenticationDbHandler
+	tokenHandler        dbhandler.InviteTokenDbHandler
+	userAuthDbHandler   dbhandler.UserPassAuthanticationDbHandler
+	serverAuthDbHandler dbhandler.ServersAuthorizationDbHandler
+	OidcAuthDbHandler   dbhandler.OidcAuthenticationDbHandler
 }

 type Claims struct {
@@ -43,14 +35,8 @@ type AuthClaims struct {
 	Claims
 }

-type InviteToken struct {
-	Email       string            `bson:"Email"`
-	Permissions models.Permission `bson:"Permissions"`
-	Token       string            `bson:"Token"`
-}
-
-func signToken(token Claims) (string, error) {
-	t := jwt.New(jwt.GetSigningMethod(method))
+func (con *Connection) signToken(token Claims) (string, error) {
+	t := jwt.New(jwt.GetSigningMethod(con.config.Signing.Algorithm))

 	t.Claims = &AuthClaims{
 		&jwt.StandardClaims{
@@ -59,98 +45,99 @@ func signToken(token Claims) (string, error) {
 		token,
 	}

-	return t.SignedString(secret)
+	return t.SignedString(con.config.Signing.Key)
 }

-func AuthorizedTo(requiredPermissions models.Permission, overwriters ...func(*gin.Context) bool) gin.HandlerFunc {
+func AuthorizedTo(requiredPermissions models.Permission) gin.HandlerFunc {
 	return func(ctx *gin.Context) {
-		authCookie, err := ctx.Request.Cookie("auth")
-		if err != nil {
-			ctx.AbortWithError(403, err)
+		claimsPointer, exists := ctx.Get("claims")
+		if !exists {
+			log.Printf("LoggedIn was not called first")
+			ctx.AbortWithError(500, fmt.Errorf("Misconfigured method"))
 			return
 		}

-		token, err := jwt.ParseWithClaims(authCookie.Value, &AuthClaims{}, func(token *jwt.Token) (interface{}, error) {
-			// Don't forget to validate the alg is what you expect:
-			if _, ok := token.Method.(*jwt.SigningMethodHMAC); !ok {
-				return nil, fmt.Errorf("unexpected signing method: %v", token.Header["alg"])
-			}
-
-			// hmacSampleSecret is a []byte containing your secret, e.g. []byte("my_secret_key")
-			return secret, nil
-		})
-		if err != nil {
-			ctx.AbortWithError(403, err)
-			return
-		}
-		if claims, ok := token.Claims.(*AuthClaims); ok && token.Valid {
-			ctx.Set("claims", claims)
-			if (requiredPermissions&claims.Permissions != requiredPermissions) && (models.Admin&claims.Permissions != models.Admin) {
-				for _, overwrite := range overwriters {
-					if overwrite(ctx) {
-						return
-					}
-				}
-				ctx.AbortWithStatusJSON(403, "matching permissions were not found")
-				return
-			}
-		} else {
+		claims, ok := claimsPointer.(*AuthClaims)
+		if !ok {
 			ctx.AbortWithStatus(500)
+			return
+		}
+
+		if (requiredPermissions&claims.Permissions != requiredPermissions) && (models.Admin&claims.Permissions != models.Admin) {
+			ctx.AbortWithStatusJSON(403, "matching permissions were not found")
+			return
 		}
 	}
 }

+func (con *Connection) LoggedIn(ctx *gin.Context) {
+	authCookie, err := ctx.Request.Cookie("auth")
+	if err != nil {
+		ctx.AbortWithError(403, err)
+		return
+	}
+
+	token, err := jwt.ParseWithClaims(authCookie.Value, &AuthClaims{}, func(token *jwt.Token) (interface{}, error) {
+		// Don't forget to validate the alg is what you expect:
+		if token.Method.Alg() != con.config.Signing.Algorithm {
+			return nil, fmt.Errorf("unexpected signing method: %v", token.Header["alg"])
+		}
+
+		// hmacSampleSecret is a []byte containing your secret, e.g. []byte("my_secret_key")
+		return con.config.Signing.Key, nil
+	})
+	if err != nil {
+		ctx.AbortWithError(403, err)
+		return
+	}
+
+	if !token.Valid {
+		ctx.AbortWithStatus(403)
+		return
+	}
+	claims, ok := token.Claims.(*AuthClaims)
+	if !ok {
+		ctx.AbortWithStatus(500)
+		return
+	}
+
+	ctx.Set("claims", claims)
+}
+
 type SignUpRequest struct {
 	Token    string
 	Username string
 	Password string
 }

-func (con Connection) signUp(c *gin.Context) {
+func (con Connection) signUp(ctx *gin.Context) {
 	var request SignUpRequest

-	err := json.NewDecoder(c.Request.Body).Decode(&request)
+	err := json.NewDecoder(ctx.Request.Body).Decode(&request)
 	if err != nil {
-		c.AbortWithError(500, err)
-	}
-
-	var token InviteToken
-
-	err = con.DatabaseConnection.Database("Backend").Collection("Tokens").FindOne(
-		context.TODO(),
-		bson.D{{}},
-		options.FindOne(),
-	).Decode(&token)
-
-	if err != nil {
-		c.AbortWithError(500, err)
+		ctx.AbortWithError(500, err)
 		return
 	}
+
+	token, err := con.tokenHandler.GetInviteToken(ctx, request.Token)
+	if err != nil {
+		ctx.AbortWithError(500, err)
+		return
+	}
+
 	if token.Token == "" {
-		c.AbortWithStatusJSON(403, "PermissionDenied")
+		ctx.AbortWithStatusJSON(403, "PermissionDenied")
 		return
 	}

-	hashedPass, err := hashPassword(request.Password)
-	if err != nil {
-		c.AbortWithError(500, err)
-		return
-	}
-
-	_, err = con.DatabaseConnection.Database("Backend").Collection("Users").InsertOne(context.TODO(), &models.User{
-		Username:        request.Username,
-		HashedPass:      hashedPass,
-		Permissions:     token.Permissions,
-		MaxOwnedServers: 5,
-		Email:           token.Email,
-	}, &options.InsertOneOptions{})
+	err = con.userAuthDbHandler.CreateUser(ctx, request.Username, request.Password, token.Permissions, token.Email, con.config.Users.DefaultMaxOwnedServers)

 	if err != nil {
-		c.AbortWithError(500, err)
+		ctx.AbortWithError(500, err)
 		return
 	}

-	con.signIn(c)
+	con.signIn(ctx)
 }

 type SignInRequest struct {
@@ -158,24 +145,18 @@ type SignInRequest struct {
 	Password string
 }

-func (con Connection) signIn(c *gin.Context) {
+func (con Connection) signIn(ctx *gin.Context) {

 	var request SignInRequest
-	err := json.NewDecoder(c.Request.Body).Decode(&request)
+	err := json.NewDecoder(ctx.Request.Body).Decode(&request)

 	if err != nil {
-		c.AbortWithError(500, err)
+		ctx.AbortWithError(500, err)
 		return
 	}
-	var userItem models.User
-	err = con.DatabaseConnection.Database("Backend").Collection("Users").FindOne(context.TODO(), bson.D{{Key: "Username", Value: request.Username}}).Decode(&userItem)
+	userItem, err := con.userAuthDbHandler.AuthenticateUser(ctx, request.Username, request.Password)
 	if err != nil {
-		c.AbortWithError(403, err)
-		return
-	}
-
-	if bcrypt.CompareHashAndPassword([]byte(userItem.HashedPass), []byte(request.Password)) != nil {
-		c.AbortWithStatus(403)
+		ctx.AbortWithError(403, err)
 		return
 	}

@@ -184,76 +165,89 @@ func (con Connection) signIn(c *gin.Context) {
 		Permissions: userItem.Permissions,
 	}

-	signedToken, err := signToken(token)
+	signedToken, err := con.signToken(token)
 	if err != nil {
-		c.AbortWithError(500, err)
+		ctx.AbortWithError(500, err)
 		return
 	}

-	c.SetCookie("auth", signedToken, int(time.Hour)*24*30, "", ".games.acooldomain.co", true, false)
-	c.IndentedJSON(http.StatusOK, signedToken)
+	ctx.SetCookie("auth", signedToken, int(time.Hour)*24*30, "", "."+con.config.Domain, true, false)
+	ctx.IndentedJSON(http.StatusOK, signedToken)
 }

-func (con Connection) verify(c *gin.Context) {
-	authCookie, err := c.Request.Cookie("auth")
-	if err != nil {
-		c.Redirect(303, fmt.Sprintf("http://%s/", DOMAIN))
+func (con Connection) Verify(ctx *gin.Context) {
+	claimsPointer, exists := ctx.Get("claims")
+	if !exists {
+		ctx.Status(403)
 		return
 	}

-	token, err := jwt.ParseWithClaims(authCookie.Value, &AuthClaims{}, func(token *jwt.Token) (interface{}, error) {
-		// Don't forget to validate the alg is what you expect:
-		if _, ok := token.Method.(*jwt.SigningMethodHMAC); !ok {
-			return nil, fmt.Errorf("unexpected signing method: %v", token.Header["alg"])
-		}
+	claims := claimsPointer.(*AuthClaims)

-		// hmacSampleSecret is a []byte containing your secret, e.g. []byte("my_secret_key")
-		return secret, nil
-	})
-
-	if err != nil {
-		c.AbortWithError(403, err)
-		return
-	}
-	claims := token.Claims
-
-	forwarded_host := c.Request.Header.Get("x-forwarded-host")
+	forwarded_host := ctx.Request.Header.Get("x-forwarded-host")
 	log.Printf("Checking auth of %s", forwarded_host)

 	domainSegments := strings.Split(forwarded_host, ".")

 	serverId, service := domainSegments[0], domainSegments[1]
-	c.AddParam("server_id", serverId)

-	if service == "browsers" {
-		if claims.(*AuthClaims).Permissions&models.Browse == models.Browse || claims.(*AuthClaims).Permissions&models.Admin == models.Admin || con.ServerAuthorized(models.Browse)(c) {
-			c.Header("X-Username", claims.(*AuthClaims).Username)
-			log.Printf("Set header X-Username %s", claims.(*AuthClaims).Username)
-			c.Status(200)
+	switch service {
+	case "browsers":
+		serverPermissions, err := con.serverAuthDbHandler.GetPermissions(ctx, claims.Username, serverId)
+		if err != nil {
+			ctx.AbortWithError(500, err)
 			return
 		}
-
-	}
-
-	if service == "cloud" {
-		if claims.(*AuthClaims).Permissions&models.Cloud == models.Cloud || claims.(*AuthClaims).Permissions&models.Admin == models.Admin {
-			log.Printf("Set header X-Username %s", claims.(*AuthClaims).Username)
-			c.Header("X-Username", claims.(*AuthClaims).Username)
-			c.Status(200)
+		if (claims.Permissions|serverPermissions)&models.Admin == models.Admin {
+			ctx.Header("X-Username", claims.Username)
+			log.Printf("Set header X-Username %s", claims.Username)
+			ctx.Status(200)
+			return
+		}
+	case "cloud":
+		if claims.Permissions&models.Cloud == models.Cloud || claims.Permissions&models.Admin == models.Admin {
+			log.Printf("Set header X-Username %s", claims.Username)
+			ctx.Header("X-Username", claims.Username)
+			ctx.Status(200)
 			return
 		}
 	}

-	c.Redirect(303, fmt.Sprintf("http://%s/login", DOMAIN))
+	ctx.Redirect(303, fmt.Sprintf("http://%s/login", con.config.Domain))
 }
 func LoadGroup(group *gin.RouterGroup, client *mongo.Client, config models.GlobalConfig) {
-	connection := Connection{DatabaseConnection: client}
+	var userAuthHandler dbhandler.UserPassAuthanticationDbHandler
+	var inviteHandler dbhandler.InviteTokenDbHandler
+	var serverAuthHandler dbhandler.ServersAuthorizationDbHandler

-	secret = []byte(config.Key)
-	method = config.Algorithm
-	DOMAIN = config.Domain
+	var err error
+
+	if config.Authentication.UserPass.Type == models.MONGO {
+		userAuthHandler, err = mongo.NewUserPassAuthHandler(*config.Authentication.UserPass.Mongo)
+		if err != nil {
+			panic(err)
+		}
+	}
+
+	if config.Authentication.UserPass.InviteTokenDatabase.Type == models.MONGO {
+		inviteHandler, err = mongo.NewInviteTokenDbHandler(*config.Authentication.UserPass.Mongo)
+		if err != nil {
+			panic(err)
+		}
+	}
+
+	mailClient = *mail.NewMailClient(config.Email)
+
+	connection := Connection{
+		userPassAuthHandler: userAuthHandler,
+		tokenHandler:        inviteHandler,
+		mailClient:          mailClient,
+		config:              &config,
+	}
+
+	connection := Connection{DatabaseConnection: client}

 	group.POST("/signin", connection.signIn)
 	group.POST("/signup", AuthorizedTo(models.Admin), connection.signUp)
-	group.Any("/verify", connection.verify)
+	group.Any("/verify", connection.Verify)
 }