PHP and HTML Verifying User Login [Archive]

sruppert

04-22-2011, 12:42 AM

The assignment consists of four pages. The first is an html file which registers a user. The second is a php file which takes this information and writes the user name and login to a text file. Both of these work but I have them below for reference:

register.html
<html>
<head>
<title>Register Form</title>
<script language="javascript">

function validate(objForm)
{
str="";
if (objForm.firstName.value == "")
{
str+= "You must enter your First Name\n";
}
if (objForm.middleInitial.value == "")
{
str+= "You must enter a Middle Initial\n";
}
if (objForm.lastName.value == "")
{
str+= "You must enter your Last Name\n";
}
if (objForm.address.value == "")
{
str+= "You must enter an address\n";
}
if (objForm.city.value == "")
{
str+= "You must enter a city\n";
}
if (objForm.state.value == "")
{
str+= "You must enter a state\n";
}
if(isNaN(myForm.zipCode.value)||myForm.zipCode.value.length!=5)
{
str+= "You must enter a 5 digit zipcode\n";
}
if (objForm.username.value == "")
{
str+= "You must enter a user name\n";
}
if (objForm.password.value == "")
{
str+= "You must enter a password\n";
}

//print all form input
if (str != ""){
alert(str);
return false;
}
else{
str= "Please Confirm Your Information:";
str += "\nFirst Name: " +objForm.firstName.value;
str += "\nMiddle Initial: " +objForm.middleInitial.value;
str += "\nLast Name: " +objForm.lastName.value;
str += "\nAddress: " +objForm.address.value;
str += "\nCity: " +objForm.city.value;
str += "\nState: " +objForm.state.value;
str += "\nZip Code: " +objForm.zipCode.value;
alert(str);
return true;
}
}
</script>
</head>
<link rel="stylesheet" type="text/CSS" href="CellFormating.css"/>
<body>
<h2 align="center" class="CellFormat1"> Registration Page </h2>
<form id="CellFormat2" name="myForm" method="post" action="registerUser.php" onSubmit="return (validate(myForm))">
<table>
<tr>
<td>First Name: </td>
<td><input name="firstName" size="15" /></td>
</tr>
<tr>
<td>Middle Initial: </td>
<td><input type="text" name="middleInitial" size="1" /></td>
</tr>
<tr>
<td>Last Name: </td>
<td><input type="text" name="lastName" size="15" maxlength="20" /></td>
</tr>
<tr>
<td>Address: </td>
<td><input type="text" name="address" size="22" maxlength="30" /></td>
</tr>
<tr>
<td>City: </td>
<td><input type="text" name="city" size="10" maxlength="15" /></td>
</tr>
<tr>
<td>State: </td>
<td><input type="text" name="state" size="10" maxlength="15" /></td>
</tr>
<tr>
<td>Zip Code: </td>
<td><input type="text" name="zipCode" size="5" maxlength="10" /></td>
</tr>
<tr>
<td>User Name: </td>
<td><input type="text" name="username" size="15" maxlength="20"></td>
</tr>
<tr>
<td>Password: </td>
<td><input type="password" name="password" size="8"/></td>
</tr>
<tr>
<td><input type="submit" name="Login" value="Submit and Login" onSubmit="return (validate(myForm))"/></td>
</tr>
</table>
</form>
</body>
</html>

registerUser.php
#!/usr/local/Free/bin/php #
<html>
<head>
<title>Register User</title>
</head>
<link rel="stylesheet" type="text/CSS" href="CellFormating.css"/>
<body>
<?php
if("Login"){
$file=fopen("UserData.txt","a+") or exit("Unable to open file");
fwrite($file,$username.",".$password."\n");
}
fclose($file);
?>
<h2 align="center" class="CellFormat1"> Thanks for registering!!! </h2>
<table align="center">
<tr>
<td><a href="login.html">Login</a></td>
<td><a href="home.html">Go Home!</a></td>
</tr>
</table>
</body>
</html>

The third is an html login page:
login.html
<html>
<head>
<title>Login Form</title>
<script language="javascript">

function validate(objForm)
{
str="";
//VALIDATING CONTACT INFORMATION
if (objForm.username.value == "")
{
str+= "You must enter a User Name\n";
}
if (objForm.password.value == "")
{
str+= "You must enter a password\n";
}
//print all form input
if (str != ""){
alert(str);
return false;
}
}
</script>
</head>
<link rel="stylesheet" type="text/CSS" href="CellFormating.css"/>
<body>
<h2 align="center" class="CellFormat1"> Login Page </h2>
<form id="CellFormat2" name="myForm" method="post" action="verifyLogin.php" onSubmit="return (validate(myForm))">
<p align="center">
<table>
<tr>
<td>User Name: </td>
<td><input type="text" name="username" size="15"/></td>
</tr>
<tr>
<td>Password: </td>
<td><input type="password" name="password" size="15"/></td>
</tr>
<tr>
<td><input type="submit" name="Login" value="Login" onSubmit="return (validate(myForm))"/></td>
</tr>
</table>
</form>
</body>
</html>

The last page is a php page which is supposed to open text file and determine if the user name a password are correct. If they are, the user is redirected to an order form. If they are not, the user is sent to an error page. No matter what I do the user is sent to an error page. The 'printf checks' show that the file is opened and read through, but not correctly getting the values entered by the user and checking them.

#!/usr/local/Free/bin/php #
<html>
<head>
<title>Verify User Information</title>
</head>
<body>
<?php

$URL1="order.html";
$URL2="errormessage.html";

$file = fopen("UserData.txt", "r") or exit("Unable to open file!");
printf($username.$password);

if ($Login)
{
printf("1");
while(!feof($file))
{

printf("2");
$str=fgets($file);
$values=split(",",$str);
$values[0] = trim($values[0]);
$values[1] = trim($values[1]);
printf("3");
if($values[0] == "" || $values[1] == "") {break;}
printf("4");
if($username == $values[0] && $password == $values[1])
{
printf("5");
header ("Location: $URL1");
fclose($file);
exit;
}
}
}
printf("6");
header("Location: $URL2");
?>
</body>
</html>