From 2cfb5e58e2263e04b1622d6be86c85b028e7dcb9 Mon Sep 17 00:00:00 2001
From: yinashh <sunny_summer_sum@live.com>
Date: Tue, 24 Jan 2017 20:11:56 -0800
Subject: [PATCH] Create login.php

---
 login.php | 100 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 100 insertions(+)
 create mode 100644 login.php
diff --git a/login.php b/login.php
new file mode 100644
index 0000000..a2cec72
--- /dev/null
+++ b/login.php
@@ -0,0 +1,100 @@
+<?php
+// if login button is clicked
+if (isset($_POST['submit'])) {
+    
+    // save username and password
+    $username = $_POST['username'];
+    $password = $_POST['password'];
+    
+    // check if a valid username and password were entered
+    if ($username && $password) {
+    
+        // connect to database
+        // mysqli_connect(server, username, password, database)
+        // default username: root
+        // default password: null
+        $connection = mysqli_connect('localhost', 'root', '', 'loginapp');
+        if (!$connection) {
+            die("Database connection failed");
+        }
+
+        // clean incoming info
+        $username = mysqli_real_escape_string($connection, $username);
+        $password = mysqli_real_escape_string($connection, $password);
+        
+        // query for user info
+        $query = "SELECT * FROM users WHERE username = '{$username}' ";
+        $select_user_query = mysqli_query($connection, $query);
+        if (!$select_user_query) {
+            die('Query FAILED' . mysqli_error($connection));
+        }
+        // extract user info
+        while ($row = mysqli_fetch_array($select_user_query)) {
+            $db_id = $row['id'];
+            $db_username = $row['username'];
+            $db_password = $row['password'];
+        }
+        // validate username and password and redirect to appropriate pages
+        if ($username !== $db_username && $password !== $db_password) {
+            header("Location: login.php ");
+        } else if ($username == $db_username && $password == $db_password) {
+            header("Location: index.html");
+        } else {
+            header("Location: login.php");
+        }
+        
+    } else {
+        echo "<div class='form-group'>Please fill in all fields!</div>";
+    }
+}
+?>
+
+
+
+
+
+
+
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <title>Traffic Vision</title>
+  <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/css/bootstrap.min.css" integrity="sha384-rwoIResjU2yc3z8GV/NPeZWAv56rSmLldC3R/AZzGRnGxQQKnKkoFVhFQhNUwEyJ" crossorigin="anonymous">
+  <script src="https://code.jquery.com/jquery-3.1.1.slim.min.js" integrity="sha384-A7FZj7v+d/sdmMqp/nOQwliLvUsJfDHW+k9Omg/a/EheAdgtzNs3hpfag6Ed950n" crossorigin="anonymous"></script>
+  <script src="https://cdnjs.cloudflare.com/ajax/libs/tether/1.4.0/js/tether.min.js" integrity="sha384-DztdAPBWPRXSA/3eYEEUWrWCy7G5KFbe8fFjk5JAIxUYHKkDx6Qin1DkWx51bBrb" crossorigin="anonymous"></script>
+  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/js/bootstrap.min.js" integrity="sha384-vBWWzlZJ8ea9aCX4pEW3rVHjgjt7zpkNpZk+02D9phzyeVkE+jo0ieGizqPLForn" crossorigin="anonymous"></script>
+
+  <link rel="stylesheet" href="./style.css">
+  <meta charset=UTF-8>
+  <meta name="viewport" content="width=device-width, 
+          initial-scale=1.0
+          maximum-scale=1.0
+          user-scalable=no">
+</head>
+
+<body>
+  <header>
+    <img class="header-logo col-6 offset-3" src="./logo.png" />
+  </header>
+  
+  <main class="container-fluid">
+    <div class="row main-body">
+      <div class="col-md-6 offset-md-3">
+        <div class="login-container">
+          <form action="login.php" method="post">
+            <div class="form-group">
+              <input type="text" name="username" class="form-control" placeholder="username" id="username"/>
+            </div>
+            <div class="form-group">
+              <input type="password" name="password" class="form-control" placeholder="password" id="password"/>
+            </div>
+            <button type="submit" name="submit" class="btn login-button">Log In</button>
+            
+          </form>
+        </div>
+      </div>
+    </div>
+  </main>
+  
+</body>
+</html>
