Added backend stuff to handle register and login to DB with support for encryption. Also added Email verification support when registering for the first time

2025-03-13 11:18:30 +01:00 · 2021-11-15 15:35:39 +07:00 · 2021-11-15 15:35:39 +07:00 · 363be4a828
commit 363be4a828
parent 45eb8a05a7
1 changed files with 207 additions and 0 deletions
--- a/routes/registerlogin.js
+++ b/routes/registerlogin.js
@ -0,0 +1,207 @@
+const bcrypt = require("bcrypt");
+const saltRounds = 10;
+var nodemailer = require("nodemailer");
+var randtoken = require("rand-token");
+var db_connect = require("../db.js");
+
+//send email
+function sendEmail(email, token) {
+  var email = email;
+  var token = token;
+  var mail = nodemailer.createTransport({
+    host: "mail.chocola.dev",
+    port: 587,
+    secure: false,
+    auth: {
+      user: "nekoya@chocola.dev",
+      pass: "Nekoya123.",
+    },
+    tls: {
+      rejectUnauthorized: false,
+    },
+  });
+  var mailOptions = {
+    from: "nekoya@chocola.dev",
+    to: email,
+    subject: "Account Verification - Nekoya",
+    html:
+      '<p>Hello!!! Please click this link <a href="http://localhost:3000/verify-email?token=' +
+      token +
+      '">link</a> to verify your account!!! Thanks!!!</p>',
+  };
+  mail.sendMail(mailOptions, function (error, info) {
+    if (error) {
+      return 1;
+    } else {
+      return 0;
+    }
+  });
+}
+
+exports.register = async function (req, res) {
+  if (
+    !req.body.email ||
+    !req.body.password ||
+    !req.body.first_name ||
+    !req.body.last_name
+  ) {
+    // Empty Fields
+    res.render("pages/register-error");
+  }
+  db_connect.query(
+    "SELECT * FROM users WHERE email = ?",
+    [req.body.email],
+    async function (error, response, fields) {
+      if (error) {
+        // Error
+        res.render("pages/register-error");
+      } else {
+        if (response.length > 0) {
+          // Email Exists
+          res.render("pages/register-error");
+        } else {
+          const encryptedPassword = await bcrypt.hash(
+            req.body.password,
+            saltRounds
+          );
+          var users = {
+            first_name: req.body.first_name,
+            last_name: req.body.last_name,
+            email: req.body.email,
+            password: encryptedPassword,
+          };
+          db_connect.query(
+            "INSERT INTO users SET ?",
+            users,
+            function (error, response, fields) {
+              if (error) {
+                console.log("An error has occured...", error);
+                // Error
+                res.render("pages/register-error");
+              } else {
+                var email = req.body.email;
+                db_connect.query(
+                  'SELECT * FROM users WHERE email ="' + email + '"',
+                  function (err, result) {
+                    if (err) throw err;
+                    console.log(result[0]);
+                    if (result.length > 0) {
+                      var token = randtoken.generate(20);
+                      if (result[0].verify == 0) {
+                        var sent = sendEmail(email, token);
+                        if (sent != "0") {
+                          var data = {
+                            token: token,
+                          };
+                          db_connect.query(
+                            'UPDATE users SET ? WHERE email ="' + email + '"',
+                            data,
+                            function (err, result) {
+                              if (err) throw err;
+                            }
+                          );
+                          // Success and has been sent
+                          res.render("pages/register-verification-sent");
+                        } else {
+                          // Error
+                          res.render("pages/register-error");
+                        }
+                      }
+                    } else {
+                      console.log("2");
+                      // Email isnt registered
+                      res.render("pages/register-error");
+                    }
+                  }
+                );
+              }
+            }
+          );
+        }
+      }
+    }
+  );
+};
+
+exports.login = async function (req, res) {
+  var email = req.body.email;
+  var password = req.body.password;
+  db_connect.query(
+    "SELECT * FROM users WHERE email = ?",
+    [email],
+    async function (error, response, fields) {
+      const passCheck = await bcrypt.compare(password, response[0].password);
+      if (error) {
+        res.send({
+          code: 400,
+          failed: "An error has occured...",
+        });
+      } else {
+        if (response.length > 0) {
+          if (passCheck) {
+            if (response[0].verify == 0) {
+              res.send({
+                code: 204,
+                success: "Sorry You havent verified your email",
+              });
+            } else {
+              res.send({
+                code: 200,
+                success: "Login Successful!!",
+              });
+            }
+          } else {
+            res.send({
+              code: 204,
+              success: "Sorry Email and password does not match",
+            });
+          }
+        } else {
+          res.send({
+            code: 204,
+            success: "Sorry Email does not exits",
+          });
+        }
+      }
+    }
+  );
+};
+
+/* verification email link */
+exports.verifyemail = function (req, res, next) {
+  db_connect.query(
+    'SELECT * FROM users WHERE token ="' + req.query.token + '"',
+    function (err, result) {
+      if (err) throw err;
+      var type;
+      var msg;
+      console.log(result[0].verify);
+      if (result[0].verify == 0) {
+        if (result.length > 0) {
+          var data = {
+            verify: 1,
+          };
+          db_connect.query(
+            'UPDATE users SET ? WHERE email ="' + result[0].email + '"',
+            data,
+            function (err, result) {
+              if (err) throw err;
+            }
+          );
+          type = "success";
+          msg = "Your email has been verified";
+          res.render("pages/register-verification-completed");
+        } else {
+          console.log("2");
+          type = "success";
+          msg = "The email has already verified";
+          res.render("pages/register-verification-completed");
+        }
+      } else {
+        type = "error";
+        msg = "The email has been already verified";
+        res.render("pages/register-verification-completed");
+      }
+    }
+  );
+};