From f68ae6703753e109f7cb38fa77240b526a2e02ee Mon Sep 17 00:00:00 2001 From: Shubhashish-Chakraborty Date: Thu, 12 Dec 2024 13:48:31 +0530 Subject: [PATCH] Backend Vulnerabilities fixed | added Input validation , password hashing , etc.. --- index.js | 3 +- package-lock.json | 535 +++++++++++++++++++++++++++++++++++++++++++++- package.json | 4 +- routes/admin.js | 192 ++++++++++++++--- routes/course.js | 33 ++- routes/user.js | 127 +++++++++-- 6 files changed, 840 insertions(+), 54 deletions(-) diff --git a/index.js b/index.js index 47fbf7e..afe58c2 100644 --- a/index.js +++ b/index.js @@ -1,5 +1,6 @@ require('dotenv').config() -console.log(process.env.MONGO_URL) + +// console.log(process.env.MONGO_URL) const express = require("express"); const mongoose = require("mongoose"); diff --git a/package-lock.json b/package-lock.json index 1af7c55..92135fc 100644 --- a/package-lock.json +++ b/package-lock.json @@ -9,11 +9,32 @@ "version": "1.0.0", "license": "ISC", "dependencies": { + "bcrypt": "^5.1.1", "dotenv": "^16.4.5", "express": "^4.21.0", "jsonwebtoken": "^9.0.2", "mongoose": "^8.6.3", - "nodemon": "^3.1.7" + "nodemon": "^3.1.7", + "zod": "^3.24.1" + } + }, + "node_modules/@mapbox/node-pre-gyp": { + "version": "1.0.11", + "resolved": "https://registry.npmjs.org/@mapbox/node-pre-gyp/-/node-pre-gyp-1.0.11.tgz", + "integrity": "sha512-Yhlar6v9WQgUp/He7BdgzOz8lqMQ8sU+jkCq7Wx8Myc5YFJLbEe7lgui/V7G1qB1DJykHSGwreceSaD60Y0PUQ==", + "dependencies": { + "detect-libc": "^2.0.0", + "https-proxy-agent": "^5.0.0", + "make-dir": "^3.1.0", + "node-fetch": "^2.6.7", + "nopt": "^5.0.0", + "npmlog": "^5.0.1", + "rimraf": "^3.0.2", + "semver": "^7.3.5", + "tar": "^6.1.11" + }, + "bin": { + "node-pre-gyp": "bin/node-pre-gyp" } }, "node_modules/@mongodb-js/saslprep": { @@ -40,6 +61,11 @@ "@types/webidl-conversions": "*" } }, + "node_modules/abbrev": { + "version": "1.1.1", + "resolved": "https://registry.npmjs.org/abbrev/-/abbrev-1.1.1.tgz", + "integrity": 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+ }, + "node_modules/agent-base/node_modules/ms": { + "version": "2.1.3", + "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz", + "integrity": "sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA==" + }, + "node_modules/ansi-regex": { + "version": "5.0.1", + "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.1.tgz", + "integrity": "sha512-quJQXlTSUGL2LH9SUXo8VwsY4soanhgo6LNSm84E1LBcE8s3O0wpdiRzyR9z/ZZJMlMWv37qOOb9pdJlMUEKFQ==", + "engines": { + "node": ">=8" + } + }, "node_modules/anymatch": { "version": "3.1.3", "resolved": "https://registry.npmjs.org/anymatch/-/anymatch-3.1.3.tgz", @@ -66,6 +132,24 @@ "node": ">= 8" } }, + "node_modules/aproba": { + "version": "2.0.0", + "resolved": "https://registry.npmjs.org/aproba/-/aproba-2.0.0.tgz", + "integrity": "sha512-lYe4Gx7QT+MKGbDsA+Z+he/Wtef0BiwDOlK/XkBrdfsh9J/jPPXbX0tE9x9cl27Tmu5gg3QUbUrQYa/y+KOHPQ==" + }, + "node_modules/are-we-there-yet": { + "version": "2.0.0", + 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@@ "npm": "1.2.8000 || >= 1.4.16" } }, + "node_modules/detect-libc": { + "version": "2.0.3", + "resolved": "https://registry.npmjs.org/detect-libc/-/detect-libc-2.0.3.tgz", + "integrity": "sha512-bwy0MGW55bG41VqxxypOsdSdGqLwXPI/focwgTYCFMbdUiBAxLg9CFzG08sz2aqzknwiX7Hkl0bQENjg8iLByw==", + "engines": { + "node": ">=8" + } + }, "node_modules/dotenv": { "version": "16.4.5", "resolved": "https://registry.npmjs.org/dotenv/-/dotenv-16.4.5.tgz", @@ -317,6 +448,11 @@ "integrity": "sha512-WMwm9LhRUo+WUaRN+vRuETqG89IgZphVSNkdFgeb6sS/E4OrDIN7t48CAewSHXc6C8lefD8KKfr5vY61brQlow==", "license": "MIT" }, + "node_modules/emoji-regex": { + "version": "8.0.0", + "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-8.0.0.tgz", + "integrity": "sha512-MSjYzcWNOA0ewAHpz0MxpYFvwg6yjy1NG3xteoqz644VCo/RPgnr1/GGt+ic3iJTzQ8Eu3TdM14SawnVUmGE6A==" + }, "node_modules/encodeurl": { "version": "2.0.0", "resolved": "https://registry.npmjs.org/encodeurl/-/encodeurl-2.0.0.tgz", @@ -452,6 +588,33 @@ "node": 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"resolved": "https://registry.npmjs.org/fsevents/-/fsevents-2.3.3.tgz", @@ -475,6 +638,26 @@ "url": "https://github.com/sponsors/ljharb" } }, + "node_modules/gauge": { + "version": "3.0.2", + "resolved": "https://registry.npmjs.org/gauge/-/gauge-3.0.2.tgz", + "integrity": "sha512-+5J6MS/5XksCuXq++uFRsnUd7Ovu1XenbeuIuNRJxYWjgQbPuFhT14lAvsWfqfAmnwluf1OwMjz39HjfLPci0Q==", + "deprecated": "This package is no longer supported.", + "dependencies": { + "aproba": "^1.0.3 || ^2.0.0", + "color-support": "^1.1.2", + "console-control-strings": "^1.0.0", + "has-unicode": "^2.0.1", + "object-assign": "^4.1.1", + "signal-exit": "^3.0.0", + "string-width": "^4.2.3", + "strip-ansi": "^6.0.1", + "wide-align": "^1.1.2" + }, + "engines": { + "node": ">=10" + } + }, "node_modules/get-intrinsic": { "version": "1.2.4", "resolved": "https://registry.npmjs.org/get-intrinsic/-/get-intrinsic-1.2.4.tgz", @@ -494,6 +677,26 @@ "url": "https://github.com/sponsors/ljharb" } }, + "node_modules/glob": { + "version": 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Do not use it. Check out lru-cache if you want a good and tested way to coalesce async requests by a key value, which is much more comprehensive and powerful.", + "dependencies": { + "once": "^1.3.0", + "wrappy": "1" + } + }, "node_modules/inherits": { "version": "2.0.4", "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz", @@ -645,6 +896,14 @@ "node": ">=0.10.0" } }, + "node_modules/is-fullwidth-code-point": { + "version": "3.0.0", + "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-3.0.0.tgz", + "integrity": "sha512-zymm5+u+sCsSWyD9qNaejV3DFvhCKclKdizYaJUuHA83RLjb7nSuGnddCHGv0hk+KY7BMAlsWeK4Ueg6EV6XQg==", + "engines": { + "node": ">=8" + } + }, "node_modules/is-glob": { "version": "4.0.3", "resolved": "https://registry.npmjs.org/is-glob/-/is-glob-4.0.3.tgz", @@ -766,6 +1025,28 @@ "integrity": "sha512-Sb487aTOCr9drQVL8pIxOzVhafOjZN9UU54hiN8PU3uAiSV7lx1yYNpbNmex2PK6dSJoNTSJUUswT651yww3Mg==", "license": "MIT" }, + "node_modules/make-dir": { + 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-1269,6 +1713,11 @@ "node": ">= 0.8.0" } }, + "node_modules/set-blocking": { + "version": "2.0.0", + "resolved": "https://registry.npmjs.org/set-blocking/-/set-blocking-2.0.0.tgz", + "integrity": "sha512-KiKBS8AnWGEyLzofFfmvKwpdPzqiy16LvQfK3yv/fVH7Bj13/wl3JSR1J+rfgRE9q7xUJK4qvgS8raSOeLUehw==" + }, "node_modules/set-function-length": { "version": "1.2.2", "resolved": "https://registry.npmjs.org/set-function-length/-/set-function-length-1.2.2.tgz", @@ -1316,6 +1765,11 @@ "integrity": "sha512-Rtlj66/b0ICeFzYTuNvX/EF1igRbbnGSvEyT79McoZa/DeGhMyC5pWKOEsZKnpkqtSeovd5FL/bjHWC3CIIvCQ==", "license": "MIT" }, + "node_modules/signal-exit": { + "version": "3.0.7", + "resolved": "https://registry.npmjs.org/signal-exit/-/signal-exit-3.0.7.tgz", + "integrity": "sha512-wnD2ZE+l+SPC/uoS0vXeE9L1+0wuaMqKlfz9AMUo38JsyLSBWSFcHR1Rri62LZc12vLr1gb3jl7iwQhgwpAbGQ==" + }, "node_modules/simple-update-notifier": { "version": "2.0.0", "resolved": 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"node_modules/util-deprecate": { + "version": "1.0.2", + "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz", + "integrity": "sha512-EPD5q1uXyFxJpCrLnCc1nHnq3gOa6DZBocAIiI2TaSCA7VCJ1UJDMagCzIkXNsUYfD1daK//LTEQ8xiIbrHtcw==" + }, "node_modules/utils-merge": { "version": "1.0.1", "resolved": "https://registry.npmjs.org/utils-merge/-/utils-merge-1.0.1.tgz", @@ -1467,6 +1974,32 @@ "engines": { "node": ">=16" } + }, + "node_modules/wide-align": { + "version": "1.1.5", + "resolved": "https://registry.npmjs.org/wide-align/-/wide-align-1.1.5.tgz", + "integrity": "sha512-eDMORYaPNZ4sQIuuYPDHdQvf4gyCF9rEEV/yPxGfwPkRodwEgiMUUXTx/dex+Me0wxx53S+NgUHaP7y3MGlDmg==", + "dependencies": { + "string-width": "^1.0.2 || 2 || 3 || 4" + } + }, + "node_modules/wrappy": { + "version": "1.0.2", + "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz", + "integrity": "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ==" + }, + "node_modules/yallist": { + "version": "4.0.0", + "resolved": "https://registry.npmjs.org/yallist/-/yallist-4.0.0.tgz", + "integrity": "sha512-3wdGidZyq5PB084XLES5TpOSRA3wjXAlIWMhum2kRcv/41Sn2emQ0dycQW4uZXLejwKvg6EsvbdlVL+FYEct7A==" + }, + "node_modules/zod": { + "version": "3.24.1", + "resolved": "https://registry.npmjs.org/zod/-/zod-3.24.1.tgz", + "integrity": "sha512-muH7gBL9sI1nciMZV67X5fTKKBLtwpZ5VBp1vsOQzj1MhrBZ4wlVCm3gedKZWLp0Oyel8sIGfeiz54Su+OVT+A==", + "funding": { + "url": "https://github.com/sponsors/colinhacks" + } } } } diff --git a/package.json b/package.json index 1d45c8a..528760e 100644 --- a/package.json +++ b/package.json @@ -11,10 +11,12 @@ "author": "", "license": "ISC", "dependencies": { + "bcrypt": "^5.1.1", "dotenv": "^16.4.5", "express": "^4.21.0", "jsonwebtoken": "^9.0.2", "mongoose": "^8.6.3", - "nodemon": "^3.1.7" + "nodemon": "^3.1.7", + "zod": "^3.24.1" } } diff --git a/routes/admin.js b/routes/admin.js index b540637..2489305 100644 --- a/routes/admin.js +++ b/routes/admin.js @@ -2,55 +2,162 @@ const { Router } = require("express"); const adminRouter = Router(); const { adminModel, courseModel } = require("../db"); const jwt = require("jsonwebtoken"); -// brcypt, zod, jsonwebtoken + +// Imported the dependencies! +const bcrypt = require('bcrypt'); +const { z } = require('zod'); + const { JWT_ADMIN_PASSWORD } = require("../config"); const { adminMiddleware } = require("../middleware/admin"); adminRouter.post("/signup", async function(req, res) { - const { email, password, firstName, lastName } = req.body; // TODO: adding zod validation - // TODO: hash the password so plaintext pw is not stored in the DB - // TODO: Put inside a try catch block - await adminModel.create({ - email: email, - password: password, - firstName: firstName, - lastName: lastName - }) - - res.json({ - message: "Signup succeeded" + // First lets add the input validation here! + + const requiredBody = z.object({ + email: z.string().email(), + password: z.string().min(3).max(100), // Adjust the min , max length according to you! + firstName: z.string().min(2).max(100), // Adjust the min , max length according to you! + lastName: z.string().min(2).max(100) // Adjust the min , max length according to you! }) + + // parse the req.body: + + const parseDataWithSuccess = requiredBody.safeParse(req.body); + + // Now checking and warning whether the user/admin has given some invalid input or not + + if (!parseDataWithSuccess.success) { + res.status(400).json({ + msg: "Invalid Input Given", + errors: parseDataWithSuccess.error.issues + }) + return + } + + // uptill here input validation is done, now proceed!! + + const { email, password, firstName, lastName } = req.body; + // hashing the password so plaintext password is not stored in the Database + + // Code error handled with try catch + + let errorFound = false; + try { + const hashedPassword = await bcrypt.hash(password , 10); + + await adminModel.create({ + email: email, + password: hashedPassword, + firstName: firstName, + lastName: lastName + }) + + } + catch(e) { + res.status(400).json({ + msg: "Email entered Already Exists in the Database!" + }) + errorFound = true; + } + + if (!errorFound) { + res.json({ + msg: `${firstName} Successfully SignedUP to the database, as ADMIN!` + }) + } }) adminRouter.post("/signin", async function(req, res) { - const { email, password } = req.body; + // First lets add the input validation here! + + const requiredBody = z.object({ + email: z.string().email(), + password: z.string().min(3).max(100), // Adjust the min , max length according to you! + }) - // TODO: ideally password should be hashed, and hence you cant compare the user provided password and the database password + // parse the req.body: + + const parseDataWithSuccess = requiredBody.safeParse(req.body); + + // Now checking and warning whether the user/admin has given some invalid input or not + + if (!parseDataWithSuccess.success) { + res.status(400).json({ + msg: "Invalid Input Given", + errors: parseDataWithSuccess.error.issues + }) + return + } + + // uptill here input validation is done, now proceed!! + + const { email, password } = req.body; + + // First check if the admin exists in our database or not! + const admin = await adminModel.findOne({ email: email, - password: password }); - if (admin) { + if (!admin) { + res.status(401).json({ + msg: `Admin Doesn't exists in our database with email: ${email}!` + }) + return + } + + const decryptedPassword = await bcrypt.compare(password , admin.password); + + // CHECK IF THE USERNAME AND PASSWORD MATCHED OR NOT!! + + + if (!decryptedPassword) { + res.status(403).json({ + msg: "Admin not Found, INCORRECT CREDENTIALS!!" + }) + } + else { // MAIN LOGIC: HERE ASSIGN THE JWT TO THE ADMIN const token = jwt.sign({ id: admin._id - }, JWT_ADMIN_PASSWORD); + } , JWT_ADMIN_PASSWORD); // Do cookie logic res.json({ + msg: `${admin.firstName} Successfully LoggedIN!!`, token: token }) - } else { - res.status(403).json({ - message: "Incorrect credentials" - }) } }) adminRouter.post("/course", adminMiddleware, async function(req, res) { + // First lets add the input validation here! + + const requiredBody = z.object({ + title: z.string(), + description: z.string().min(3).max(100), // Adjust the min , max length according to you! + imageUrl: z.string().min(2), + price: z.number() + }) + + // parse the req.body: + + const parseDataWithSuccess = requiredBody.safeParse(req.body); + + // Now checking and warning whether the user/admin has given some invalid input or not + + if (!parseDataWithSuccess.success) { + res.status(400).json({ + msg: "Invalid Input Given", + errors: parseDataWithSuccess.error.issues + }) + return + } + + // uptill here input validation is done, now proceed!! + const adminId = req.userId; const { title, description, imageUrl, price } = req.body; @@ -66,16 +173,51 @@ adminRouter.post("/course", adminMiddleware, async function(req, res) { res.json({ message: "Course created", - courseId: course._id + courseId: course._id, + courseTitle: title }) }) -adminRouter.put("/course", adminMiddleware, async function(req, res) { +adminRouter.put("/update-course", adminMiddleware, async function(req, res) { + const requiredBody = z.object({ + title: z.string(), + description: z.string().min(3).max(100), // Adjust the min , max length according to you! + imageUrl: z.string().min(2), + price: z.number(), + courseId: z.string() + }) + + // parse + + const parsedDataWithSuccess = requiredBody.safeParse(req.body); + + if (!parsedDataWithSuccess.success) { + res.status(400).json({ + msg: "INVALID INPUT", + error: parsedDataWithSuccess.error.issues + }) + return + } + + // UPTILL HERE input validation is done! + const adminId = req.userId; const { title, description, imageUrl, price, courseId } = req.body; + + // FIRST OF ALL, EXPLICITILY CHECK THAT WHETHER THAT COURSE IS PRESENT FOR THAT PARTICULAR ADMIN OR NOT! + const courseCheck = await courseModel.findOne({ + _id: courseId, + creatorId: adminId + }) - // creating a web3 saas in 6 hours + if (!courseCheck) { + res.status(401).json({ + msg: "No course Found!!!!" + }) + return + } + const course = await courseModel.updateOne({ _id: courseId, creatorId: adminId diff --git a/routes/course.js b/routes/course.js index 4b023a1..5e9fabc 100644 --- a/routes/course.js +++ b/routes/course.js @@ -3,11 +3,38 @@ const { userMiddleware } = require("../middleware/user"); const { purchaseModel, courseModel } = require("../db") const courseRouter = Router(); -courseRouter.post("/purchase", userMiddleware, async function(req, res) { +courseRouter.post("/purchase", userMiddleware, async function (req, res) { const userId = req.userId; const courseId = req.body.courseId; + // Firstly We've to check that whether that course is available or not!! + + const courseExistance = await courseModel.findOne({ + _id: courseId + }) + + if (!courseExistance) { + res.status(400).json({ + msg: "NO COURSE AVAILABLE!!!" + }) + return + } + + // Now Secondly WE've to prevent the user to buy a course twice. + + const alreadyPurchased = await purchaseModel.findOne({ + courseId: courseId + }) + + if (alreadyPurchased) { + res.status(400).json({ + msg: "This course has already been purhcased!!" + }) + return + } + // should check that the user has actually paid the price + await purchaseModel.create({ userId, courseId @@ -18,8 +45,8 @@ courseRouter.post("/purchase", userMiddleware, async function(req, res) { }) }) -courseRouter.get("/preview", async function(req, res) { - +courseRouter.get("/preview", async function (req, res) { + const courses = await courseModel.find({}); res.json({ diff --git a/routes/user.js b/routes/user.js index 30957a7..8d1317e 100644 --- a/routes/user.js +++ b/routes/user.js @@ -4,48 +4,129 @@ const jwt = require("jsonwebtoken"); const { JWT_USER_PASSWORD } = require("../config"); const { userMiddleware } = require("../middleware/user"); +// Imported the dependencies! +const bcrypt = require('bcrypt'); +const { z } = require('zod'); + const userRouter = Router(); userRouter.post("/signup", async function(req, res) { - const { email, password, firstName, lastName } = req.body; // TODO: adding zod validation - // TODO: hash the password so plaintext pw is not stored in the DB - // TODO: Put inside a try catch block - await userModel.create({ - email: email, - password: password, - firstName: firstName, - lastName: lastName - }) - - res.json({ - message: "Signup succeeded" + // First lets add the input validation here! + + const requiredBody = z.object({ + email: z.string().email(), + password: z.string().min(3).max(100), // Adjust the min , max length according to you! + firstName: z.string().min(2).max(100), // Adjust the min , max length according to you! + lastName: z.string().min(2).max(100) // Adjust the min , max length according to you! }) + + // parse the req.body: + + const parseDataWithSuccess = requiredBody.safeParse(req.body); + + // Now checking and warning whether the user/admin has given some invalid input or not + + if (!parseDataWithSuccess.success) { + res.status(400).json({ + msg: "Invalid Input Given", + errors: parseDataWithSuccess.error.issues + }) + return + } + + // uptill here input validation is done, now proceed!! + + const { email, password, firstName, lastName } = req.body; + // hashing the password so plaintext password is not stored in the Database + + // Code error handled with try catch + + let errorFound = false; + try { + const hashedPassword = await bcrypt.hash(password , 10); + + await userModel.create({ + email: email, + password: hashedPassword, + firstName: firstName, + lastName: lastName + }) + + } + catch(e) { + res.status(400).json({ + msg: "Email entered Already Exists in the Database!" + }) + errorFound = true; + } + + if (!errorFound) { + res.json({ + msg: `${firstName} Successfully SignedUP to the database, as USER!` + }) + } }) userRouter.post("/signin",async function(req, res) { - const { email, password } = req.body; + // First lets add the input validation here! + + const requiredBody = z.object({ + email: z.string().email(), + password: z.string().min(3).max(100), // Adjust the min , max length according to you! + }) + + // parse the req.body: + + const parseDataWithSuccess = requiredBody.safeParse(req.body); + + // Now checking and warning whether the user/admin has given some invalid input or not - // TODO: ideally password should be hashed, and hence you cant compare the user provided password and the database password + if (!parseDataWithSuccess.success) { + res.status(400).json({ + msg: "Invalid Input Given", + errors: parseDataWithSuccess.error.issues + }) + return + } + // uptill here input validation is done, now proceed!! + + const { email, password } = req.body; + + // First check if the user exists in our database or not! + const user = await userModel.findOne({ email: email, - password: password - }); //[] + }); - if (user) { + if (!user) { + res.status(401).json({ + msg: `User Doesn't exists in our database with email: ${email}!` + }) + return + } + + const decryptedPassword = await bcrypt.compare(password , user.password); + + // CHECK IF THE USERNAME AND PASSWORD MATCHED OR NOT!! + + + if (!decryptedPassword) { + res.status(403).json({ + msg: "User not Found, INCORRECT CREDENTIALS!!" + }) + } + else { // MAIN LOGIC: HERE ASSIGN THE JWT TO THE ADMIN const token = jwt.sign({ - id: user._id, - }, JWT_USER_PASSWORD); + id: user._id + } , JWT_USER_PASSWORD); // Do cookie logic res.json({ + msg: `${user.firstName} Successfully LoggedIN!!`, token: token }) - } else { - res.status(403).json({ - message: "Incorrect credentials" - }) } })