From 1c6a4c903e62204559df2d1db853e1162de2b065 Mon Sep 17 00:00:00 2001 From: Satyam Lal Date: Tue, 14 Jan 2025 23:37:11 +0530 Subject: [PATCH 1/8] Completed Week 3 assignments --- week-3/01-middlewares/01-requestcount.js | 24 ++++++++++------ week-3/01-middlewares/02-ratelimitter.js | 36 +++++++++++++++++------- week-3/01-middlewares/03-errorcount.js | 23 +++++++++------ 3 files changed, 55 insertions(+), 28 deletions(-) diff --git a/week-3/01-middlewares/01-requestcount.js b/week-3/01-middlewares/01-requestcount.js index aced495488..d4dcbb4bf2 100644 --- a/week-3/01-middlewares/01-requestcount.js +++ b/week-3/01-middlewares/01-requestcount.js @@ -1,6 +1,6 @@ -const request = require('supertest'); -const assert = require('assert'); -const express = require('express'); +const request = require("supertest"); +const assert = require("assert"); +const express = require("express"); const app = express(); let requestCount = 0; @@ -9,17 +9,23 @@ let requestCount = 0; // Your task is to create a global middleware (app.use) which will // maintain a count of the number of requests made to the server in the global // requestCount variable +app.use((req, res, next) => { + requestCount = requestCount + 1; + next(); +}); -app.get('/user', function(req, res) { - res.status(200).json({ name: 'john' }); +app.get("/user", function (req, res) { + res.status(200).json({ name: "john" }); }); -app.post('/user', function(req, res) { - res.status(200).json({ msg: 'created dummy user' }); +app.post("/user", function (req, res) { + res.status(200).json({ msg: "created dummy user" }); }); -app.get('/requestCount', function(req, res) { +app.get("/requestCount", function (req, res) { res.status(200).json({ requestCount }); }); -module.exports = app; \ No newline at end of file +// app.listen(3000); + +module.exports = app; diff --git a/week-3/01-middlewares/02-ratelimitter.js b/week-3/01-middlewares/02-ratelimitter.js index 3329bb9497..da08fdb300 100644 --- a/week-3/01-middlewares/02-ratelimitter.js +++ b/week-3/01-middlewares/02-ratelimitter.js @@ -1,6 +1,6 @@ -const request = require('supertest'); -const assert = require('assert'); -const express = require('express'); +const request = require("supertest"); +const assert = require("assert"); +const express = require("express"); const app = express(); // You have been given an express server which has a few endpoints. // Your task is to create a global middleware (app.use) which will @@ -13,15 +13,31 @@ const app = express(); let numberOfRequestsForUser = {}; setInterval(() => { - numberOfRequestsForUser = {}; -}, 1000) + numberOfRequestsForUser = {}; +}, 1000); -app.get('/user', function(req, res) { - res.status(200).json({ name: 'john' }); +app.use(function (req, res, next) { + const userId = req.headers["user-id"]; + + if (!numberOfRequestsForUser[userId]) { + numberOfRequestsForUser[userId] = 1; + return next(); + } + if (numberOfRequestsForUser[userId]) { + numberOfRequestsForUser[userId]++; + if (numberOfRequestsForUser[userId] > 5) { + res.status(404).send("Too Many Attemps"); + } + next(); + } +}); + +app.get("/user", function (req, res) { + res.status(200).json({ name: "john" }); }); -app.post('/user', function(req, res) { - res.status(200).json({ msg: 'created dummy user' }); +app.post("/user", function (req, res) { + res.status(200).json({ msg: "created dummy user" }); }); -module.exports = app; \ No newline at end of file +module.exports = app; diff --git a/week-3/01-middlewares/03-errorcount.js b/week-3/01-middlewares/03-errorcount.js index c5374ae6ef..0d276dfaf9 100644 --- a/week-3/01-middlewares/03-errorcount.js +++ b/week-3/01-middlewares/03-errorcount.js @@ -1,6 +1,6 @@ -const request = require('supertest'); -const assert = require('assert'); -const express = require('express'); +const request = require("supertest"); +const assert = require("assert"); +const express = require("express"); const app = express(); let errorCount = 0; @@ -10,17 +10,22 @@ let errorCount = 0; // 1. Ensure that if there is ever an exception, the end user sees a status code of 404 // 2. Maintain the errorCount variable whose value should go up every time there is an exception in any endpoint -app.get('/user', function(req, res) { +app.get("/user", function (req, res) { throw new Error("User not found"); - res.status(200).json({ name: 'john' }); + res.status(200).json({ name: "john" }); }); -app.post('/user', function(req, res) { - res.status(200).json({ msg: 'created dummy user' }); +app.post("/user", function (req, res) { + res.status(200).json({ msg: "created dummy user" }); }); -app.get('/errorCount', function(req, res) { +app.get("/errorCount", function (req, res) { res.status(200).json({ errorCount }); }); -module.exports = app; \ No newline at end of file +app.use((err, req, res, next) => { + res.status(404).send({}); + errorCount++; +}); + +module.exports = app; From 433d4637b8a61cdcede2815f45c6093ac582eebb Mon Sep 17 00:00:00 2001 From: Satyam Lal Date: Tue, 14 Jan 2025 23:43:55 +0530 Subject: [PATCH 2/8] Completed Week 3 assignments --- week-3/01-middlewares/coverage/clover.xml | 40 ++++ .../coverage/coverage-final.json | 2 + .../lcov-report/01-requestcount.js.html | 178 ++++++++++++++ .../lcov-report/02-ratelimitter.js.html | 214 +++++++++++++++++ .../lcov-report/03-errorcount.js.html | 178 ++++++++++++++ .../coverage/lcov-report/base.css | 224 ++++++++++++++++++ .../coverage/lcov-report/block-navigation.js | 87 +++++++ .../coverage/lcov-report/favicon.png | Bin 0 -> 445 bytes .../coverage/lcov-report/index.html | 116 +++++++++ .../coverage/lcov-report/prettify.css | 1 + .../coverage/lcov-report/prettify.js | 2 + .../lcov-report/sort-arrow-sprite.png | Bin 0 -> 138 bytes .../coverage/lcov-report/sorter.js | 196 +++++++++++++++ week-3/01-middlewares/coverage/lcov.info | 44 ++++ 14 files changed, 1282 insertions(+) create mode 100644 week-3/01-middlewares/coverage/clover.xml create mode 100644 week-3/01-middlewares/coverage/coverage-final.json create mode 100644 week-3/01-middlewares/coverage/lcov-report/01-requestcount.js.html create mode 100644 week-3/01-middlewares/coverage/lcov-report/02-ratelimitter.js.html create mode 100644 week-3/01-middlewares/coverage/lcov-report/03-errorcount.js.html create mode 100644 week-3/01-middlewares/coverage/lcov-report/base.css create mode 100644 week-3/01-middlewares/coverage/lcov-report/block-navigation.js create mode 100644 week-3/01-middlewares/coverage/lcov-report/favicon.png create mode 100644 week-3/01-middlewares/coverage/lcov-report/index.html create mode 100644 week-3/01-middlewares/coverage/lcov-report/prettify.css create mode 100644 week-3/01-middlewares/coverage/lcov-report/prettify.js create mode 100644 week-3/01-middlewares/coverage/lcov-report/sort-arrow-sprite.png create mode 100644 week-3/01-middlewares/coverage/lcov-report/sorter.js create mode 100644 week-3/01-middlewares/coverage/lcov.info diff --git a/week-3/01-middlewares/coverage/clover.xml b/week-3/01-middlewares/coverage/clover.xml new file mode 100644 index 0000000000..6bb4a0fba5 --- /dev/null +++ b/week-3/01-middlewares/coverage/clover.xml @@ -0,0 +1,40 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/week-3/01-middlewares/coverage/coverage-final.json b/week-3/01-middlewares/coverage/coverage-final.json new file mode 100644 index 0000000000..d910e84de6 --- /dev/null +++ b/week-3/01-middlewares/coverage/coverage-final.json @@ -0,0 +1,2 @@ +{"C:\\Users\\ssaty\\OneDrive\\Desktop\\Cohort2\\assignments\\week-3\\01-middlewares\\03-errorcount.js": 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+} diff --git a/week-3/01-middlewares/coverage/lcov-report/01-requestcount.js.html b/week-3/01-middlewares/coverage/lcov-report/01-requestcount.js.html new file mode 100644 index 0000000000..8867450507 --- /dev/null +++ b/week-3/01-middlewares/coverage/lcov-report/01-requestcount.js.html @@ -0,0 +1,178 @@ + + + + + + Code coverage report for 01-requestcount.js + + + + + + + + + +
+
+

All files 01-requestcount.js

+
+ +
+ 96.77% + Statements + 30/31 +
+ + +
+ 100% + Branches + 3/3 +
+ + +
+ 100% + Functions + 0/0 +
+ + +
+ 96.77% + Lines + 30/31 +
+ + +
+

+ Press n or j to go to the next uncovered block, b, p or k for the previous block. +

+ +
+
+ 

+
1
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+ 
const request = require("supertest");
+const assert = require("assert");
+const express = require("express");
+ 
+const app = express();
+let requestCount = 0;
+ 
+// You have been given an express server which has a few endpoints.
+// Your task is to create a global middleware (app.use) which will
+// maintain a count of the number of requests made to the server in the global
+// requestCount variable
+app.use((req, res, next) => {
+  requestCount = requestCount + 1;
+  next();
+});
+ 
+app.get("/user", function (req, res) {
+  res.status(200).json({ name: "john" });
+});
+ 
+app.post("/user", function (req, res) {
+  res.status(200).json({ msg: "created dummy user" });
+});
+ 
+app.get("/requestCount", function (req, res) {
+  res.status(200).json({ requestCount });
+});
+ 
+// app.listen(3000);
+ 
+module.exports = app;
+ 
+ +
+
+
+ Code coverage generated by + istanbul + at 2025-01-14T17:34:00.457Z +
+ + + + + + + \ No newline at end of file diff --git a/week-3/01-middlewares/coverage/lcov-report/02-ratelimitter.js.html b/week-3/01-middlewares/coverage/lcov-report/02-ratelimitter.js.html new file mode 100644 index 0000000000..fc4800a5a2 --- /dev/null +++ b/week-3/01-middlewares/coverage/lcov-report/02-ratelimitter.js.html @@ -0,0 +1,214 @@ + + + + + + Code coverage report for 02-ratelimitter.js + + + + + + + + + +
+
+

All files 02-ratelimitter.js

+
+ +
+ 97.67% + Statements + 42/43 +
+ + +
+ 100% + Branches + 6/6 +
+ + +
+ 100% + Functions + 0/0 +
+ + +
+ 97.67% + Lines + 42/43 +
+ + +
+

+ Press n or j to go to the next uncovered block, b, p or k for the previous block. +

+ +
+
+ 

+
1
+2
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+ 
+1x
+1x
+1x
+ 
const request = require("supertest");
+const assert = require("assert");
+const express = require("express");
+const app = express();
+// You have been given an express server which has a few endpoints.
+// Your task is to create a global middleware (app.use) which will
+// rate limit the requests from a user to only 5 request per second
+// If a user sends more than 5 requests in a single second, the server
+// should block them with a 404.
+// User will be sending in their user id in the header as 'user-id'
+// You have been given a numberOfRequestsForUser object to start off with which
+// clears every one second
+ 
+let numberOfRequestsForUser = {};
+setInterval(() => {
+  numberOfRequestsForUser = {};
+}, 1000);
+ 
+app.use(function (req, res, next) {
+  const userId = req.headers["user-id"];
+ 
+  if (!numberOfRequestsForUser[userId]) {
+    numberOfRequestsForUser[userId] = 1;
+    return next();
+  }
+  if (numberOfRequestsForUser[userId]) {
+    numberOfRequestsForUser[userId]++;
+    if (numberOfRequestsForUser[userId] > 5) {
+      res.status(404).send("Too Many Attemps");
+    }
+    next();
+  }
+});
+ 
+app.get("/user", function (req, res) {
+  res.status(200).json({ name: "john" });
+});
+ 
+app.post("/user", function (req, res) {
+  res.status(200).json({ msg: "created dummy user" });
+});
+ 
+module.exports = app;
+ 
+ +
+
+
+ Code coverage generated by + istanbul + at 2025-01-14T17:53:30.890Z +
+ + + + + + + \ No newline at end of file diff --git a/week-3/01-middlewares/coverage/lcov-report/03-errorcount.js.html b/week-3/01-middlewares/coverage/lcov-report/03-errorcount.js.html new file mode 100644 index 0000000000..3befe39c72 --- /dev/null +++ b/week-3/01-middlewares/coverage/lcov-report/03-errorcount.js.html @@ -0,0 +1,178 @@ + + + + + + Code coverage report for 03-errorcount.js + + + + + + + + + +
+
+

All files 03-errorcount.js

+
+ +
+ 93.54% + Statements + 29/31 +
+ + +
+ 75% + Branches + 3/4 +
+ + +
+ 100% + Functions + 0/0 +
+ + +
+ 93.54% + Lines + 29/31 +
+ + +
+

+ Press n or j to go to the next uncovered block, b, p or k for the previous block. +

+ +
+
+ 

+
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+1x
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+ 
const request = require("supertest");
+const assert = require("assert");
+const express = require("express");
+ 
+const app = express();
+let errorCount = 0;
+ 
+// You have been given an express server which has a few endpoints.
+// Your task is to
+// 1. Ensure that if there is ever an exception, the end user sees a status code of 404
+// 2. Maintain the errorCount variable whose value should go up every time there is an exception in any endpoint
+ 
+app.get("/user", function (req, res) {
+  throw new Error("User not found");
+  res.status(200).json({ name: "john" });
+});
+ 
+app.post("/user", function (req, res) {
+  res.status(200).json({ msg: "created dummy user" });
+});
+ 
+app.get("/errorCount", function (req, res) {
+  res.status(200).json({ errorCount });
+});
+ 
+app.use((err, req, res, next) => {
+  res.status(404).send({});
+  errorCount++;
+});
+ 
+module.exports = app;
+ 
+ +
+
+
+ Code coverage generated by + istanbul + at 2025-01-14T18:05:25.418Z +
+ + + + + + + \ No newline at end of file diff --git a/week-3/01-middlewares/coverage/lcov-report/base.css b/week-3/01-middlewares/coverage/lcov-report/base.css new file mode 100644 index 0000000000..f418035b46 --- /dev/null +++ b/week-3/01-middlewares/coverage/lcov-report/base.css @@ -0,0 +1,224 @@ +body, html { + margin:0; padding: 0; + height: 100%; +} +body { + font-family: Helvetica Neue, Helvetica, Arial; + font-size: 14px; + color:#333; +} +.small { font-size: 12px; } +*, *:after, *:before { + -webkit-box-sizing:border-box; + -moz-box-sizing:border-box; + box-sizing:border-box; + } +h1 { font-size: 20px; margin: 0;} +h2 { font-size: 14px; } +pre { + font: 12px/1.4 Consolas, "Liberation Mono", Menlo, Courier, monospace; + margin: 0; + padding: 0; + -moz-tab-size: 2; + -o-tab-size: 2; + tab-size: 2; +} +a { color:#0074D9; text-decoration:none; } +a:hover { text-decoration:underline; } +.strong { font-weight: bold; } +.space-top1 { padding: 10px 0 0 0; } +.pad2y { padding: 20px 0; 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element of the summary table + function getTableHeader() { + return getTable().querySelector('thead tr'); + } + // returns the tbody element of the summary table + function getTableBody() { + return getTable().querySelector('tbody'); + } + // returns the th element for nth column + function getNthColumn(n) { + return getTableHeader().querySelectorAll('th')[n]; + } + + function onFilterInput() { + const searchValue = document.getElementById('fileSearch').value; + const rows = document.getElementsByTagName('tbody')[0].children; + for (let i = 0; i < rows.length; i++) { + const row = rows[i]; + if ( + row.textContent + .toLowerCase() + .includes(searchValue.toLowerCase()) + ) { + row.style.display = ''; + } else { + row.style.display = 'none'; + } + } + } + + // loads the search box + function addSearchBox() { + var template = document.getElementById('filterTemplate'); + var templateClone = template.content.cloneNode(true); + templateClone.getElementById('fileSearch').oninput = onFilterInput; + template.parentElement.appendChild(templateClone); + } + + // loads all columns + function loadColumns() { + var colNodes = getTableHeader().querySelectorAll('th'), + colNode, + cols = [], + col, + i; + + for (i = 0; i < colNodes.length; i += 1) { + colNode = colNodes[i]; + col = { + key: colNode.getAttribute('data-col'), + sortable: !colNode.getAttribute('data-nosort'), + type: colNode.getAttribute('data-type') || 'string' + }; + cols.push(col); + if (col.sortable) { + col.defaultDescSort = col.type === 'number'; + colNode.innerHTML = + colNode.innerHTML + ''; + } + } + return cols; + } + // attaches a data attribute to every tr element with an object + // of data values keyed by column name + function loadRowData(tableRow) { + var tableCols = tableRow.querySelectorAll('td'), + colNode, + col, + data = {}, + i, + val; + for (i = 0; i < tableCols.length; i += 1) { + colNode = tableCols[i]; + col = cols[i]; + val = colNode.getAttribute('data-value'); + if (col.type === 'number') { + val = Number(val); + } + data[col.key] = val; + } + return data; + } + // loads all row data + function loadData() { + var rows = getTableBody().querySelectorAll('tr'), + i; + + for (i = 0; i < rows.length; i += 1) { + rows[i].data = loadRowData(rows[i]); + } + } + // sorts the table using the data for the ith column + function sortByIndex(index, desc) { + var key = cols[index].key, + sorter = function(a, b) { + a = a.data[key]; + b = b.data[key]; + return a < b ? -1 : a > b ? 1 : 0; + }, + finalSorter = sorter, + tableBody = document.querySelector('.coverage-summary tbody'), + rowNodes = tableBody.querySelectorAll('tr'), + rows = [], + i; + + if (desc) { + finalSorter = function(a, b) { + return -1 * sorter(a, b); + }; + } + + for (i = 0; i < rowNodes.length; i += 1) { + rows.push(rowNodes[i]); + tableBody.removeChild(rowNodes[i]); + } + + rows.sort(finalSorter); + + for (i = 0; i < rows.length; i += 1) { + tableBody.appendChild(rows[i]); + } + } + // removes sort indicators for current column being sorted + function removeSortIndicators() { + var col = getNthColumn(currentSort.index), + cls = col.className; + + cls = cls.replace(/ sorted$/, '').replace(/ sorted-desc$/, ''); + col.className = cls; + } + // adds sort indicators for current column being sorted + function addSortIndicators() { + getNthColumn(currentSort.index).className += currentSort.desc + ? ' sorted-desc' + : ' sorted'; + } + // adds event listeners for all sorter widgets + function enableUI() { + var i, + el, + ithSorter = function ithSorter(i) { + var col = cols[i]; + + return function() { + var desc = col.defaultDescSort; + + if (currentSort.index === i) { + desc = !currentSort.desc; + } + sortByIndex(i, desc); + removeSortIndicators(); + currentSort.index = i; + currentSort.desc = desc; + addSortIndicators(); + }; + }; + for (i = 0; i < cols.length; i += 1) { + if (cols[i].sortable) { + // add the click event handler on the th so users + // dont have to click on those tiny arrows + el = getNthColumn(i).querySelector('.sorter').parentElement; + if (el.addEventListener) { + el.addEventListener('click', ithSorter(i)); + } else { + el.attachEvent('onclick', ithSorter(i)); + } + } + } + } + // adds sorting functionality to the UI + return function() { + if (!getTable()) { + return; + } + cols = loadColumns(); + loadData(); + addSearchBox(); + addSortIndicators(); + enableUI(); + }; +})(); + +window.addEventListener('load', addSorting); diff --git a/week-3/01-middlewares/coverage/lcov.info b/week-3/01-middlewares/coverage/lcov.info new file mode 100644 index 0000000000..8b490d9d42 --- /dev/null +++ b/week-3/01-middlewares/coverage/lcov.info @@ -0,0 +1,44 @@ +TN: +SF:03-errorcount.js +FNF:0 +FNH:0 +DA:1,1 +DA:2,1 +DA:3,1 +DA:4,1 +DA:5,1 +DA:6,1 +DA:7,1 +DA:8,1 +DA:9,1 +DA:10,1 +DA:11,1 +DA:12,1 +DA:13,1 +DA:14,11 +DA:15,0 +DA:16,1 +DA:17,1 +DA:18,1 +DA:19,0 +DA:20,1 +DA:21,1 +DA:22,1 +DA:23,2 +DA:24,1 +DA:25,1 +DA:26,1 +DA:27,11 +DA:28,11 +DA:29,1 +DA:30,1 +DA:31,1 +LF:31 +LH:29 +BRDA:13,0,0,11 +BRDA:14,1,0,0 +BRDA:22,2,0,2 +BRDA:26,3,0,11 +BRF:4 +BRH:3 +end_of_record From c79d30fe5fd0fec7d39aa6897fb9f2f120215fbc Mon Sep 17 00:00:00 2001 From: Satyam Lal Date: Tue, 14 Jan 2025 23:44:57 +0530 Subject: [PATCH 3/8] Completed Week 3 assignments --- week-3/01-middlewares/.gitignore | 3 +++ week-3/01-middlewares/package-lock.json | 1 + 2 files changed, 4 insertions(+) diff --git a/week-3/01-middlewares/.gitignore b/week-3/01-middlewares/.gitignore index 3c3629e647..52574571b9 100644 --- a/week-3/01-middlewares/.gitignore +++ b/week-3/01-middlewares/.gitignore @@ -1 +1,4 @@ node_modules +package.json +package-lock.json +week-3/01-middlewares/coverage/ \ No newline at end of file diff --git a/week-3/01-middlewares/package-lock.json b/week-3/01-middlewares/package-lock.json index e20b1d0ada..21b41d3f1d 100644 --- a/week-3/01-middlewares/package-lock.json +++ b/week-3/01-middlewares/package-lock.json @@ -3486,6 +3486,7 @@ "version": "29.7.0", "resolved": "https://registry.npmjs.org/jest/-/jest-29.7.0.tgz", "integrity": "sha512-NIy3oAFp9shda19hy4HK0HRTWKtPJmGdnvywu01nOqNC2vZg+Z+fvJDxpMQA88eb2I9EcafcdjYgsDthnYTvGw==", + "license": "MIT", "dependencies": { "@jest/core": "^29.7.0", "@jest/types": "^29.6.3", From 2220c3ed42a0048468ef02307f11f9f616c27c57 Mon Sep 17 00:00:00 2001 From: Satyam Lal Date: Wed, 15 Jan 2025 16:13:06 +0530 Subject: [PATCH 4/8] Week-3 02-jwt assignment completed --- week-3/02-jwt/index.js | 37 +++++++++++++++++++++++++++++++------ 1 file changed, 31 insertions(+), 6 deletions(-) diff --git a/week-3/02-jwt/index.js b/week-3/02-jwt/index.js index fb7c604c81..8af3f07199 100644 --- a/week-3/02-jwt/index.js +++ b/week-3/02-jwt/index.js @@ -1,6 +1,9 @@ -const jwt = require('jsonwebtoken'); -const jwtPassword = 'secret'; +const jwt = require("jsonwebtoken"); +const jwtPassword = "secret"; +const zod = require("zod"); +const emailSchema = zod.string().email(); +const passwordSchema = zod.string().min(6); /** * Generates a JWT for a given username and password. @@ -14,7 +17,21 @@ const jwtPassword = 'secret'; * the password does not meet the length requirement. */ function signJwt(username, password) { - // Your code here + // Your code here + + const usernameResponse = emailSchema.safeParse(username); + const passwordResponse = passwordSchema.safeParse(password); + if (!usernameResponse.success || !passwordResponse.success) { + return null; + } + + const signature = jwt.sign( + { + username, + }, + jwtPassword + ); + return signature; } /** @@ -26,7 +43,13 @@ function signJwt(username, password) { * using the secret key. */ function verifyJwt(token) { - // Your code here + // Your code here + try { + jwt.verify(token, jwtPassword); + return true; + } catch (e) { + return false; + } } /** @@ -36,10 +59,12 @@ function verifyJwt(token) { * @returns {object|false} The decoded payload of the JWT if the token is a valid JWT format. * Returns false if the token is not a valid JWT format. */ + function decodeJwt(token) { - // Your code here + // Your code here + return !!jwt.decode(token); } - +//const decoded = (token) => jwt.decode(token) ? true : false; module.exports = { signJwt, From 9ac7f9512cf06fd3e10906dfcbef4d4a7a00954a Mon Sep 17 00:00:00 2001 From: Satyam Lal Date: Wed, 15 Jan 2025 16:15:34 +0530 Subject: [PATCH 5/8] Week-3 02-jwt assignment completed --- week-3/02-jwt/index.js | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/week-3/02-jwt/index.js b/week-3/02-jwt/index.js index 8af3f07199..531a9cdd37 100644 --- a/week-3/02-jwt/index.js +++ b/week-3/02-jwt/index.js @@ -47,7 +47,7 @@ function verifyJwt(token) { try { jwt.verify(token, jwtPassword); return true; - } catch (e) { + } catch (err) { return false; } } @@ -64,6 +64,7 @@ function decodeJwt(token) { // Your code here return !!jwt.decode(token); } +//Another way is to use arrow function along with a ternary operator //const decoded = (token) => jwt.decode(token) ? true : false; module.exports = { From 525e3142964018ad28576e2b91a7f8ff77869e29 Mon Sep 17 00:00:00 2001 From: Satyam Lal Date: Wed, 15 Jan 2025 16:18:14 +0530 Subject: [PATCH 6/8] Week-3 02-jwt assignment completed --- week-3/02-jwt/index.js | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/week-3/02-jwt/index.js b/week-3/02-jwt/index.js index 531a9cdd37..731facbf30 100644 --- a/week-3/02-jwt/index.js +++ b/week-3/02-jwt/index.js @@ -44,12 +44,13 @@ function signJwt(username, password) { */ function verifyJwt(token) { // Your code here + ans = true; try { jwt.verify(token, jwtPassword); - return true; } catch (err) { - return false; + ans = false; } + return ans; } /** From b855570bee6470c6e8468cb765e650af3320e91a Mon Sep 17 00:00:00 2001 From: Satyam Lal Date: Wed, 15 Jan 2025 17:48:12 +0530 Subject: [PATCH 7/8] tsconfig.json target edited to es2022 --- week-3/02-jwt/tsconfig.json | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/week-3/02-jwt/tsconfig.json b/week-3/02-jwt/tsconfig.json index e075f973c4..91d3575297 100644 --- a/week-3/02-jwt/tsconfig.json +++ b/week-3/02-jwt/tsconfig.json @@ -11,7 +11,7 @@ // "disableReferencedProjectLoad": true, /* Reduce the number of projects loaded automatically by TypeScript. */ /* Language and Environment */ - "target": "es2016", /* Set the JavaScript language version for emitted JavaScript and include compatible library declarations. */ + "target": "es2022" /* Set the JavaScript language version for emitted JavaScript and include compatible library declarations. */, // "lib": [], /* Specify a set of bundled library declaration files that describe the target runtime environment. */ // "jsx": "preserve", /* Specify what JSX code is generated. */ // "experimentalDecorators": true, /* Enable experimental support for legacy experimental decorators. */ @@ -25,7 +25,7 @@ // "moduleDetection": "auto", /* Control what method is used to detect module-format JS files. */ /* Modules */ - "module": "commonjs", /* Specify what module code is generated. */ + "module": "commonjs" /* Specify what module code is generated. */, // "rootDir": "./", /* Specify the root folder within your source files. */ // "moduleResolution": "node10", /* Specify how TypeScript looks up a file from a given module specifier. */ // "baseUrl": "./", /* Specify the base directory to resolve non-relative module names. */ @@ -77,12 +77,12 @@ // "isolatedModules": true, /* Ensure that each file can be safely transpiled without relying on other imports. */ // "verbatimModuleSyntax": true, /* Do not transform or elide any imports or exports not marked as type-only, ensuring they are written in the output file's format based on the 'module' setting. */ // "allowSyntheticDefaultImports": true, /* Allow 'import x from y' when a module doesn't have a default export. */ - "esModuleInterop": true, /* Emit additional JavaScript to ease support for importing CommonJS modules. This enables 'allowSyntheticDefaultImports' for type compatibility. */ + "esModuleInterop": true /* Emit additional JavaScript to ease support for importing CommonJS modules. This enables 'allowSyntheticDefaultImports' for type compatibility. */, // "preserveSymlinks": true, /* Disable resolving symlinks to their realpath. This correlates to the same flag in node. */ - "forceConsistentCasingInFileNames": true, /* Ensure that casing is correct in imports. */ + "forceConsistentCasingInFileNames": true /* Ensure that casing is correct in imports. */, /* Type Checking */ - "strict": true, /* Enable all strict type-checking options. */ + "strict": true /* Enable all strict type-checking options. */, // "noImplicitAny": true, /* Enable error reporting for expressions and declarations with an implied 'any' type. */ // "strictNullChecks": true, /* When type checking, take into account 'null' and 'undefined'. */ // "strictFunctionTypes": true, /* When assigning functions, check to ensure parameters and the return values are subtype-compatible. */ @@ -104,6 +104,6 @@ /* Completeness */ // "skipDefaultLibCheck": true, /* Skip type checking .d.ts files that are included with TypeScript. */ - "skipLibCheck": true /* Skip type checking all .d.ts files. */ + "skipLibCheck": true /* Skip type checking all .d.ts files. */ } } From dc8793d0c0ea04e6cd769511de0023abb5ab027e Mon Sep 17 00:00:00 2001 From: Satyam Lal <26645754+satyamlal@users.noreply.github.com> Date: Wed, 15 Jan 2025 17:49:23 +0530 Subject: [PATCH 8/8] Update index.js Week-2 jwt assignment completed. --- week-3/02-jwt/index.js | 39 +++++++++++++++++++++++++++++++++------ 1 file changed, 33 insertions(+), 6 deletions(-) diff --git a/week-3/02-jwt/index.js b/week-3/02-jwt/index.js index fb7c604c81..731facbf30 100644 --- a/week-3/02-jwt/index.js +++ b/week-3/02-jwt/index.js @@ -1,6 +1,9 @@ -const jwt = require('jsonwebtoken'); -const jwtPassword = 'secret'; +const jwt = require("jsonwebtoken"); +const jwtPassword = "secret"; +const zod = require("zod"); +const emailSchema = zod.string().email(); +const passwordSchema = zod.string().min(6); /** * Generates a JWT for a given username and password. @@ -14,7 +17,21 @@ const jwtPassword = 'secret'; * the password does not meet the length requirement. */ function signJwt(username, password) { - // Your code here + // Your code here + + const usernameResponse = emailSchema.safeParse(username); + const passwordResponse = passwordSchema.safeParse(password); + if (!usernameResponse.success || !passwordResponse.success) { + return null; + } + + const signature = jwt.sign( + { + username, + }, + jwtPassword + ); + return signature; } /** @@ -26,7 +43,14 @@ function signJwt(username, password) { * using the secret key. */ function verifyJwt(token) { - // Your code here + // Your code here + ans = true; + try { + jwt.verify(token, jwtPassword); + } catch (err) { + ans = false; + } + return ans; } /** @@ -36,10 +60,13 @@ function verifyJwt(token) { * @returns {object|false} The decoded payload of the JWT if the token is a valid JWT format. * Returns false if the token is not a valid JWT format. */ + function decodeJwt(token) { - // Your code here + // Your code here + return !!jwt.decode(token); } - +//Another way is to use arrow function along with a ternary operator +//const decoded = (token) => jwt.decode(token) ? true : false; module.exports = { signJwt,