create login system backend and validations

donkeshkavya · Oct 18, 2022 · f849c76 · f849c76
1 parent aff1c2c
commit f849c76
Show file tree

Hide file tree

Showing 4 changed files with 90 additions and 0 deletions.
diff --git a/login_system/LogIn.html b/login_system/LogIn.html
@@ -4,6 +4,7 @@
     <meta charset="UTF-8">
     <title>Log in</title>
     <link rel="stylesheet" type="text/css" href="Login.css">
+    <script language="javascript" type="text/javascript" src="validations.js">
     </script>
 </head>
 <body>

diff --git a/login_system/action.php b/login_system/action.php
@@ -0,0 +1,51 @@
+<?php
+//checking the connection
+include "connection.php";
+
+$username=$_REQUEST['uname'];
+$password=$_REQUEST['pword'];
+$empty=array();
+
+//checking for empty inputs (php validations)
+if(empty($username)) {array_push($empty,"empty username");}
+if(empty($password)) {array_push($empty,"empty password");}
+
+if(count($empty)==0) {
+
+     //getting encrypted password
+    $enc_pword= sha1($password);
+    //query for check users in database
+    $user_check="SELECT * FROM users WHERE username = '$username' AND password= '$enc_pword' LIMIT 1";
+    $result= mysqli_query($connection,$user_check);
+
+    if($result)
+    {
+        if(mysqli_num_rows($result)==1)
+        {
+            //if result == 1 row ,getting that raw to an array
+
+            //checking user or admin
+            $row=mysqli_fetch_assoc($result);
+            if($row['username']=="admin")
+            {
+                //creating a session
+                $_SESSION['username_logged']=$username;
+                header("location:../admin.php");//add your file path
+            }
+            else
+            {
+                $_SESSION['username_logged']=$username;
+                header("location:../home.php");//add your file path
+            }
+
+        }
+        else
+        {
+            header("location:LogIn.html");
+        }
+
+    }else {echo "<b>Error!!!!!</b><br>Can't Check users in database.......".$connection->error;}
+
+}else {echo "<b>Username or Password empty.......</b>";}
+
+?>
diff --git a/login_system/connection.php b/login_system/connection.php
@@ -0,0 +1,12 @@
+<?php
+session_start();
+?>
+<?php
+$host="localhost";
+$username="root";
+$password="";
+$db="mydb"; //add your database name
+
+$connection = mysqli_connect($host,$username,$password,$db) or die("Sorry!!! Can't Connect to the Database / Error is ".mysqli_connect_error());
+
+?>
diff --git a/login_system/validations.js b/login_system/validations.js
@@ -0,0 +1,26 @@
+function validtext()
+{
+
+    if((document.logform.uname.value.length<1)&&(document.logform.pword.value.length<1))
+    {
+        window.alert("Please enter your Username and Password");
+        return false;
+    }
+    else if(document.logform.uname.value.length<1)
+    {
+        window.alert("Username is Missing");
+        return false;
+    }
+    else if(document.logform.pword.value.length<1)
+    {
+        window.alert("Password is Missing");
+        return false;
+    }
+    if(document.logform.pword.value.length<7)
+    {
+        window.alert("Invalid Password (Password must contain atleast 6 characters)");
+        return false;
+    }
+
+
+}