Add validation schemas and improve texture handling

Introduces zod-based validation schemas for Minecraft and Mojang API endpoints. Refactors texture route to support hash-based file serving and removes the old static texture route. Updates database schema for player properties and adds an event to clean expired certificates. Improves ValidationError formatting, adjusts skin/cape URL construction, and adds SSRF protection for skin uploads.

errors/ValidationError.js

@@ -1,14 +1,52 @@
 const DefaultError = require("./DefaultError")
 const YggdrasilError = require("./YggdrasilError")
 const SessionError = require("./SessionError")
+const ServiceError = require("./ServiceError")
 const logger = require("../modules/logger")
 
 class ValidationError extends DefaultError {
-    constructor(zodResult, config = {}, context = {}) {
-        const formattedErrors = zodResult.error.issues.map(e => ({
-            field: e.path.join("."),
-            message: e.message
-        }))
+    constructor(result, config = {}, context = {}) {
+        let formattedErrors = []
+        if (result && result.error && Array.isArray(result.error.issues)) {
+            formattedErrors = result.error.issues.flatMap(issue => {
+                if (issue.code === "unrecognized_keys") {
+                    return issue.keys.map(key => ({
+                        field: [...issue.path, key].join("."),
+                        message: "Field not allowed"
+                    }))
+                }
+                
+                if (issue.code === "invalid_union") {
+                     return {
+                        field: issue.path.join("."),
+                        message: "Invalid input format (union mismatch)"
+                    }
+                }
+
+                return {
+                    field: issue.path.join("."),
+                    message: issue.message
+                }
+            })
+        }
+        else if (result instanceof Error) {
+            formattedErrors = [{
+                field: "global",
+                message: result.message
+            }]
+        }
+        else if (typeof result === "string") {
+            formattedErrors = [{
+                field: "global",
+                message: result
+            }]
+        }
+        else {
+            formattedErrors = [{
+                field: "unknown",
+                message: "Unknown validation error"
+            }]
+        }
 
         const message = config.message || "Validation failed"
         const statusCode = config.code || 400
@@ -54,11 +92,27 @@ class ValidationError extends DefaultError {
             return err.serialize()
         }
 
-        return {
+        if (this.config.errorFormat === "ServiceError") {
+            const err = new ServiceError(
+                this.code,
+                this.context.path || "",
+                this.config.errorName || "ValidationException",
+                this.message,
+                this.formattedErrors
+            )
+            return err.serialize()
+        }
+        const response = {
             code: this.code,
             message: this.message,
             errors: this.formattedErrors
         }
+
+        if (this.cause) {
+            response.cause = this.cause
+        }
+
+        return response
     }
 }
 

modules/databaseGlobals.js

@@ -45,7 +45,8 @@ async function setupDatabase() {
                 name VARCHAR(256) NOT NULL,
                 value VARCHAR(512) NOT NULL,
                 uuid VARCHAR(36) NOT NULL,
-                FOREIGN KEY (uuid) REFERENCES players(uuid)
+                UNIQUE KEY unique_property (uuid, name),
+                FOREIGN KEY (uuid) REFERENCES players(uuid) ON DELETE CASCADE
             )
         `)
         logger.log(`${"playersProperties".bold} table ready`, ["MariaDB", "yellow"])
@@ -333,6 +334,17 @@ async function setupDatabase() {
             )
         `)
         logger.log(`${"serverSessions".bold} table ready`, ["MariaDB", "yellow"])
+        
+        await conn.query(`SET GLOBAL event_scheduler = ON;`)
+        logger.log("MariaDB Event Scheduler enabled.", ["MariaDB", "yellow"])
+        
+        await conn.query(`
+            CREATE EVENT IF NOT EXISTS clean_expired_certificates
+            ON SCHEDULE EVERY 1 HOUR
+            DO 
+            DELETE FROM playerCertificates WHERE expiresAt < NOW();
+        `)
+        logger.log(`${"clean_expired_certificates".bold} event ready`, ["MariaDB", "yellow"])
 
         logger.log("MariaDB database successfully initialised!", ["MariaDB", "yellow"])
 

repositories/userRepository.js

@@ -5,7 +5,11 @@ const { DefaultError } = require("../errors/errors")
 
 async function addPropertyToPlayer(key, value, uuid) {
     try {
-        const sql = `INSERT INTO playersProperties (name, value, uuid) VALUES (?, ?, ?)`
+        const sql = `
+            INSERT INTO playersProperties (name, value, uuid) 
+            VALUES (?, ?, ?)
+            ON DUPLICATE KEY UPDATE value = VALUES(value)
+        `
         const result = await database.query(sql, [key, value, uuid])
         
         if (result.affectedRows > 0) {

routes/minecraftservices/minecraft/profile/namechange.js

@@ -3,7 +3,7 @@ const router = express.Router()
 const userService = require("../../../../services/userService")
 const authService = require("../../../../services/authService")
 
-router.put("/", async (req, res) => {
+router.get("/", async (req, res) => {
     const player = await authService.verifyAccessToken({ accessToken: req.headers.authorization.replace("Bearer ", "") })
     const nameChangeInformation = await userService.getPlayerNameChangeStatus(player.user.uuid)
     return res.status(nameChangeInformation.code).json(nameChangeInformation.data)

routes/minecraftservices/minecraft/profile/skins/index.js

@@ -1,3 +1,5 @@
+const fs = require("node:fs")
+const path = require("node:path")
 const express = require("express")
 const router = express.Router()
 const multer = require("multer")
@@ -22,7 +24,11 @@ const uploadLimiter = rateLimit({
     max: 20,
     standardHeaders: true,
     legacyHeaders: false,
+    validate: {
+        ip: false
+    },
     keyGenerator: (req) => {
+        rateLimit.ipKeyGenerator()
         return req.headers.authorization || req.ip
     },
     handler: (req, res, next, options) => {

routes/textures/texture.js

@@ -1,13 +0,0 @@
-const express = require("express")
-const router = express.Router()
-const path = require("node:path")
-const fs = require("node:fs")
-
-const TEXTURES_DIR = path.join(process.cwd(), "data", "textures")
-if (!fs.existsSync(TEXTURES_DIR)) {
-    fs.mkdirSync(TEXTURES_DIR, { recursive: true })
-}
-
-router.use(express.static(TEXTURES_DIR))
-
-module.exports = router

routes/textures/texture/[hash].js

@@ -0,0 +1,27 @@
+const express = require("express")
+const router = express.Router({ mergeParams: true })
+const path = require("node:path")
+const fs = require("node:fs")
+const { DefaultError } = require("../../../errors/errors")
+
+const TEXTURES_DIR = path.join(process.cwd(), "data", "textures")
+
+router.get("/", async (req, res, next) => {
+    try {
+        const hash = req.params.hash
+        if (!/^[a-f0-9]{64}$/i.test(hash)) {
+            throw new DefaultError(404, "Texture not found")
+        }
+
+        const subDir = hash.substring(0, 2)
+        const filePath = path.join(TEXTURES_DIR, subDir, hash)
+        if (!fs.existsSync(filePath)) {
+            throw new DefaultError(404, "Texture not found")
+        }
+        res.sendFile(filePath)
+    } catch (err) {
+        return next(err)
+    }
+})
+
+module.exports = router

schemas/minecraftservices/minecraft/profile.js

@@ -0,0 +1,13 @@
+const z = require("zod")
+
+module.exports = {
+    GET: {
+        headers: z.object({
+            "authorization": z.string().min(1, { message: "Authorization header is required." })
+        }),
+        error: {
+            code: 401,
+            message: "Unauthorized"
+        }
+    }
+}

schemas/minecraftservices/minecraft/profile/capes/active.js

@@ -0,0 +1,28 @@
+const z = require("zod")
+
+module.exports = {
+    DELETE: {
+        headers: z.object({
+            "authorization": z.string().min(1, { message: "Authorization header is required." })
+        }),
+        error: {
+            code: 401,
+            message: "Unauthorized"
+        }
+    },
+    PUT: {
+        headers: z.object({
+            "content-type": z.string()
+                .regex(/application\/json/i, { message: "Content-Type must be application/json" }),
+            "authorization": z.string().min(1, { message: "Authorization header is required." })
+        }),
+        body: z.object({
+            capeId: z.string().uuid({ message: "Invalid Cape UUID." })
+        }),
+        error: {
+            code: 400,
+            message: "profile does not own cape",
+            error: "IllegalArgumentException"
+        }
+    }
+}

schemas/minecraftservices/minecraft/profile/lookup/bulk/byname.js

@@ -0,0 +1,18 @@
+const z = require("zod")
+
+module.exports = {
+    POST: {
+        headers: z.object({
+            "content-type": z.string()
+                .regex(/application\/json/i, { message: "Content-Type must be application/json" })
+        }),
+        body: z.array(z.string().trim().min(1))
+            .min(1, { message: "RequestPayload is an empty array." })
+            .max(10, { message: "RequestPayload has more than 10 elements." }),
+        error: {
+            code: 400,
+            error: "CONSTRAINT_VIOLATION",
+            errorMessage: "size must be between 1 and 10"
+        }
+    }
+}

schemas/minecraftservices/minecraft/profile/lookup/name/[username].js

@@ -0,0 +1,13 @@
+const z = require("zod")
+
+module.exports = {
+    GET: {
+        params: z.object({
+            username: z.string().min(1)
+        }),
+        error: {
+            code: 404,
+            message: "Not Found"
+        }
+    }
+}

schemas/minecraftservices/minecraft/profile/name/[name].js

@@ -0,0 +1,22 @@
+const z = require("zod")
+
+const nameSchema = z.string()
+    .min(1)
+    .max(16)
+    .regex(/^[a-zA-Z0-9_]+$/, { message: "Name can only contain alphanumeric characters and underscores." });
+
+module.exports = {
+    PUT: {
+        headers: z.object({
+            "authorization": z.string().min(1, { message: "Authorization header is required." })
+        }),
+        params: z.object({
+            name: nameSchema
+        }),
+        error: {
+            code: 400,
+            error: "CONSTRAINT_VIOLATION",
+            errorMessage: "Invalid profile name"
+        }
+    }
+}

schemas/minecraftservices/minecraft/profile/name/[name]/available.js

@@ -0,0 +1,21 @@
+const z = require("zod")
+
+const nameSchema = z.string()
+    .min(1)
+    .max(16)
+    .regex(/^[a-zA-Z0-9_]+$/, { message: "Name can only contain alphanumeric characters and underscores." });
+
+module.exports = {
+    GET: {
+        headers: z.object({
+            "authorization": z.string().min(1, { message: "Authorization header is required." })
+        }),
+        params: z.object({
+            name: nameSchema
+        }),
+        error: {
+            code: 401,
+            message: "Unauthorized"
+        }
+    }
+}

schemas/minecraftservices/minecraft/profile/namechange.js

@@ -0,0 +1,13 @@
+const z = require("zod")
+
+module.exports = {
+    GET: {
+        headers: z.object({
+            "authorization": z.string().min(1, { message: "Authorization header is required." })
+        }),
+        error: {
+            code: 401,
+            message: "Unauthorized"
+        }
+    }
+}

schemas/minecraftservices/minecraft/profile/skins.js

@@ -0,0 +1,24 @@
+const z = require("zod")
+
+module.exports = {
+    POST: {
+        headers: z.object({
+            "content-type": z.string()
+                .regex(/application\/json/i, { message: "Content-Type must be application/json" }),
+            "authorization": z.string().min(1, { message: "Authorization header is required." })
+        }),
+        body: z.object({
+            variant: z.enum(["classic", "slim"], { 
+                errorMap: () => ({ message: "Variant must be 'classic' or 'slim'." }) 
+            }),
+            url: z.string()
+                .url({ message: "Invalid URL format." })
+                .max(2048, { message: "URL is too long." })
+        }),
+        error: {
+            code: 400,
+            message: "Invalid skin URL or variant.",
+            error: "IllegalArgumentException"
+        }
+    }
+}

schemas/minecraftservices/minecraft/profile/skins/active.js

@@ -0,0 +1,13 @@
+const z = require("zod")
+
+module.exports = {
+    DELETE: {
+        headers: z.object({
+            "authorization": z.string().min(1, { message: "Authorization header is required." })
+        }),
+        error: {
+            code: 401,
+            message: "Unauthorized"
+        }
+    }
+}

schemas/minecraftservices/player/attributes.js

@@ -0,0 +1,29 @@
+const z = require("zod")
+
+module.exports = {
+    GET: {
+        headers: z.object({
+            "authorization": z.string().min(1, { message: "Authorization header is required." })
+        }),
+        error: {
+            code: 401,
+            message: "Unauthorized"
+        }
+    },
+    POST: {
+        headers: z.object({
+            "content-type": z.string()
+                .regex(/application\/json/i, { message: "Content-Type must be application/json" }),
+            "authorization": z.string().min(1, { message: "Authorization header is required." })
+        }),
+        body: z.object({
+            profanityFilterPreferences: z.object({
+                profanityFilterOn: z.boolean({ required_error: "profanityFilterOn is required" })
+            })
+        }),
+        error: {
+            code: 400,
+            message: "Invalid attributes format."
+        }
+    }
+}

schemas/minecraftservices/player/certificates.js

@@ -0,0 +1,13 @@
+const z = require("zod")
+
+module.exports = {
+    POST: {
+        headers: z.object({
+            "authorization": z.string().min(1, { message: "Authorization header is required." })
+        }),
+        error: {
+            code: 401,
+            message: "Unauthorized"
+        }
+    }
+}

schemas/minecraftservices/privacy/blocklist.js

@@ -0,0 +1,13 @@
+const z = require("zod")
+
+module.exports = {
+    GET: {
+        headers: z.object({
+            "authorization": z.string().min(1, { message: "Authorization header is required." })
+        }),
+        error: {
+            code: 401,
+            message: "Unauthorized"
+        }
+    }
+}

schemas/minecraftservices/privacy/blocklist/[uuid].js

@@ -0,0 +1,28 @@
+const z = require("zod")
+
+module.exports = {
+    PUT: {
+        headers: z.object({
+            "authorization": z.string().min(1, { message: "Authorization header is required." })
+        }),
+        params: z.object({
+            uuid: z.string().uuid({ message: "Invalid UUID." })
+        }),
+        error: {
+            code: 400,
+            message: "Invalid UUID"
+        }
+    },
+    DELETE: {
+        headers: z.object({
+            "authorization": z.string().min(1, { message: "Authorization header is required." })
+        }),
+        params: z.object({
+            uuid: z.string().uuid({ message: "Invalid UUID." })
+        }),
+        error: {
+            code: 400,
+            message: "Invalid UUID"
+        }
+    }
+}

schemas/minecraftservices/privileges.js

@@ -0,0 +1,29 @@
+const z = require("zod")
+
+module.exports = {
+    GET: {
+        headers: z.object({
+            "authorization": z.string().min(1, { message: "Authorization header is required." })
+        }),
+        error: {
+            code: 401,
+            message: "Unauthorized"
+        }
+    },
+    POST: {
+        headers: z.object({
+            "content-type": z.string()
+                .regex(/application\/json/i, { message: "Content-Type must be application/json" }),
+            "authorization": z.string().min(1, { message: "Authorization header is required." })
+        }),
+        body: z.object({
+            profanityFilterPreferences: z.object({
+                profanityFilterOn: z.boolean({ required_error: "profanityFilterOn is required" })
+            }).optional() 
+        }),
+        error: {
+            code: 401,
+            message: "Unauthorized"
+        }
+    }
+}

schemas/mojangapi/minecraft/profile/lookup/bulk/byname.js

@@ -0,0 +1,18 @@
+const z = require("zod")
+
+module.exports = {
+    POST: {
+        headers: z.object({
+            "content-type": z.string()
+                .regex(/application\/json/i, { message: "Content-Type must be application/json" })
+        }),
+        body: z.array(z.string().trim().min(1))
+            .min(1, { message: "RequestPayload is an empty array." })
+            .max(10, { message: "RequestPayload has more than 10 elements." }),
+        error: {
+            code: 400,
+            error: "CONSTRAINT_VIOLATION",
+            errorMessage: "size must be between 1 and 10"
+        }
+    }
+}

schemas/mojangapi/profile/lookup/name/[username].js

@@ -0,0 +1,13 @@
+const z = require("zod")
+
+module.exports = {
+    GET: {
+        params: z.object({
+            username: z.string().min(1, { message: "Username is required." })
+        }),
+        error: {
+            code: 404,
+            message: "Not Found"
+        }
+    }
+}

schemas/mojangapi/profiles/minecraft.js

@@ -0,0 +1,18 @@
+const z = require("zod")
+
+module.exports = {
+    POST: {
+        headers: z.object({
+            "content-type": z.string()
+                .regex(/application\/json/i, { message: "Content-Type must be application/json" })
+        }),
+        body: z.array(z.string().trim().min(1))
+            .min(1, { message: "RequestPayload is an empty array." })
+            .max(10, { message: "RequestPayload has more than 10 elements." }),
+        error: {
+            code: 400,
+            error: "CONSTRAINT_VIOLATION",
+            errorMessage: "size must be between 1 and 10"
+        }
+    }
+}

schemas/mojangapi/user/profiles/[uuid]/names.js

@@ -0,0 +1,18 @@
+const z = require("zod")
+
+module.exports = {
+    GET: {
+        headers: z.object({
+            "content-type": z.string()
+                .regex(/application\/json/i, { message: "Content-Type must be application/json" })
+                .optional()
+        }),
+        params: z.object({
+            uuid: z.string().uuid({ message: "Invalid UUID format." })
+        }),
+        error: {
+            code: 204,
+            message: "No content"
+        }
+    }
+}

schemas/mojangapi/users/profiles/minecraft/[username].js

@@ -0,0 +1,13 @@
+const z = require("zod")
+
+module.exports = {
+    GET: {
+        params: z.object({
+            username: z.string().min(1, { message: "Username is required." })
+        }),
+        error: {
+            code: 404,
+            message: "Not Found"
+        }
+    }
+}

schemas/sessionsserver/session/minecraft/profile/[uuid].js

@@ -0,0 +1,16 @@
+const z = require("zod")
+
+module.exports = {
+    GET: {
+        params: z.object({
+            uuid: z.string().length(32).regex(/^[0-9a-fA-F]+$/, { message: "Invalid UUID (no dashes expected)." })
+        }),
+        query: z.object({
+            unsigned: z.enum(["true", "false"]).optional()
+        }),
+        error: {
+            code: 204, 
+            message: "No content (UUID not found)"
+        }
+    }
+}

services/sessionsService.js

@@ -73,12 +73,12 @@ async function getProfile({ uuid, unsigned = false }) {
     const hasValidCape = !!activeCape
 
     const skinNode = hasValidSkin ? {
-        url: activeSkin.url,
+        url: (process.env.TEXTURES_ENDPOINTS || `http://localhost:${process.env.WEB_PORT}/textures/`) + activeSkin.url,
         metadata: activeSkin.variant === "SLIM" ? { model: "slim" } : undefined
     } : undefined
 
     const capeNode = hasValidCape ? {
-        url: activeCape.url
+        url: (process.env.TEXTURES_ENDPOINTS || `http://localhost:${process.env.WEB_PORT}/textures/`) + activeCape.url
     } : undefined
 
     const texturesObject = {

services/userService.js

@@ -1,7 +1,9 @@
 const fs = require("node:fs/promises")
+const path = require("node:path")
 const util = require("node:util")
 const logger = require("../modules/logger")
 const crypto = require("node:crypto")
+const ssrfcheck = require("ssrfcheck")
 const certsManager = require("../modules/certificatesManager")
 const userRepository = require("../repositories/userRepository")
 const { DefaultError } = require("../errors/errors")
@@ -475,6 +477,7 @@ async function uploadSkin(uuid, fileObject, variant) {
 
 async function uploadSkinFromUrl(uuid, url, variant) {
     if (!url) throw new DefaultError(400, "Missing 'url' parameter.")
+    if (ssrfcheck.isSSRFSafeURL(url)) throw new DefaultError(400, "Bad request", null)
 
     let buffer
     try {