intial code commit

contactform.php

@@ -0,0 +1,94 @@
+<?php
+// Form code for mail submissions
+// For usage with hugo site
+
+// Anti exploit code, not perfect but should throw a wrench into a bot's plan
+
+session_start();
+
+class antibot {
+
+    private $passfail;
+
+    function __constructor(){
+        $passfail = 0;
+    }
+
+    private function fromtest() {
+        if ($_SERVER['HTTP_REFERER'] = "http://yourwebsite.com/contactus/"){
+        $passfail = 1;
+        }
+        
+    }
+
+    private function ratetest() {
+        if (!$_SESSION['last_submit']){
+            $_SESSION['last_submit'] = time(); // May not stick to a bot but doing it anyhow
+            $passfail = 2;
+        }else{
+           //print "Session found"; 
+        if (time()-$_SESSION['last_submit'] < 60){
+            // Purposefully not letting them know what the interval is
+        die('Error: Message not sent, rate limit hit. Please wait a few minutes and try again.');
+        $passfail = 0;
+        }else{
+        $_SESSION['last_submit'] = time();
+            $passfail = 2;
+        }
+    }
+    
+    }
+
+    private function traptest() {
+        if($_POST['website']){
+            $passfail = 0;
+        }else{
+            $passfail = 3;
+        }
+        return $passfail;
+    }
+
+    private function test_input($data) {
+        $data = trim($data);
+        $data = stripslashes($data);
+        $data = htmlspecialchars($data);
+        return $data;
+      }
+
+    private function sndmsg($target) {
+        // First clean the data
+        $fname = $this->test_input($_POST["fname"]);
+        $lname = $this->test_input($_POST["lname"]);
+        $email = $this->test_input($_POST["email"]);
+        $comments = $this->test_input($_POST["comments"]);
+        // compile cleaned message
+        $msg = "From $fname Subject $lname email $email with message $comments";
+        mail($target,"Website Form Submission",$msg);
+    }
+
+    public function do_tests(){
+        $this->fromtest();
+        $this->ratetest();
+        $result = $this->traptest();
+        if($result == 3) {
+            $this->sndmsg("you@yoursite.com");
+            return 3;
+        }else{
+            return 0;
+        }
+        
+    }
+    
+}
+
+$lcheck = new antibot();
+
+$winner = $lcheck->do_tests();
+
+if ($winner == 3){
+    echo "Form Submitted thank you!";
+}else{
+    echo "Error: Send failed, please try again.";
+}
+
+?>