Steven/HexDecBinCalc
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Add api and usage page

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This commit is contained in:
Steven Tracey 2022-11-04 00:03:33 -04:00
parent e96329ac03
commit f4830694d4
6 changed files with 157 additions and 20 deletions
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6
.idea/vcs.xml Normal file
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@ -0,0 +1,6 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="VcsDirectoryMappings">
<mapping directory="$PROJECT_DIR$" vcs="Git" />
</component>
</project>

36
api-usage.html Normal file
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@ -0,0 +1,36 @@
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>API Usage</title>
<link rel="stylesheet" href="style.css">
</head>
<body>
<div class="api-container">
<h2>API Usage</h2>
<div class="text">
<p>Parameters</p>
<ol>
<li>Binary: <code>binary</code></li>
<li>Decimal: <code>decimal</code></li>
<li>Hexadecimal: <code>hexadecimal</code></li>
</ol>
<p>Usage and Response</p>
<ol class="no-dots">
<li>GET request to <code>https://dev.nevets.tech/calculator/hexdecbin/api.php?(parameter)=(value)</code></li>
<li>API responds with a json string similar to below</li>
<pre>
{
"binary":1101011,
"decimal":107,
"hexadecimal":"6B"
}
</pre>
<li><b>Reminder: </b>Only use one parameter, more than one will return a 422 error!</li>
</ol>
</div>
</div>
</body>
</html>

34
api.php Normal file
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@ -0,0 +1,34 @@
<?php
include "./conversions.php";
header("Content-Type: application/json");
$binary = $decimal = $hexadecimal = 0;
$response = array("binary" => &$binary, "decimal" => &$decimal, "hexadecimal" => &$hexadecimal);
if (isset($_GET['binary']) && !isset($_GET['decimal']) && !isset($_GET['hexadecimal'])) {
$binary = sanitize_int_input($_GET['binary']);
$decimal = binary_to_decimal($binary);
$hexadecimal = binary_to_hex($binary);
}
if (!isset($_GET['binary']) && isset($_GET['decimal']) && !isset($_GET['hexadecimal'])) {
$decimal = sanitize_int_input($_GET['decimal']);
$binary = decimal_to_binary($decimal);
$hexadecimal = decimal_to_hex($decimal);
}
if (!isset($_GET['binary']) && !isset($_GET['decimal']) && isset($_GET['hexadecimal'])) {
$hexadecimal = sanitize_string_input($_GET['hexadecimal']);
$binary = hex_to_binary($hexadecimal);
$decimal = hex_to_decimal($hexadecimal);
}
if ((!isset($_GET['binary']) && !isset($_GET['decimal']) && !isset($_GET['hexadecimal']) ||
(isset($_GET['binary']) && isset($_GET['decimal']) && isset($_GET['hexadecimal'])))) {
http_response_code(422);
exit();
}
echo json_encode($response);

22
conversions.php
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@ -1,6 +1,7 @@
<?php
function hex_to_decimal(string $hex) : int {
$hex = sanitize_string_input($hex);
$chars = array(0 => 0, 1 => 1, 2 => 2, 3 => 3, 4 => 4, 5 => 5, 6 => 6, 7 => 7, 8 => 8,
9 => 9, "A" => 10, "B" => 11, "C" => 12, "D" => 13, "E" => 14, "F" => 15);
$decimal = 0;
@ -13,11 +14,13 @@ function hex_to_decimal(string $hex) : int {
}
function hex_to_binary(string $hex) : int {
$hex = sanitize_string_input($hex);
$decimal = hex_to_decimal($hex);
return decimal_to_binary($decimal);
}
function decimal_to_hex(int $decimal) : string {
$decimal = sanitize_int_input($decimal);
$chars = array(0 => 0, 1 => 1, 2 => 2, 3 => 3, 4 => 4, 5 => 5, 6 => 6, 7 => 7, 8 => 8,
9 => 9, 10 => "A", 11 => "B", 12 => "C", 13 => "D", 14 => "E", 15 => "F");
$remainder = $decimal;
@ -38,6 +41,7 @@ function decimal_to_hex(int $decimal) : string {
}
function decimal_to_binary(int $decimal) : int {
$decimal = sanitize_int_input($decimal);
$remainder = $decimal;
$greatest_base_2 = 0;
$binary_str = "";
@ -58,6 +62,7 @@ function decimal_to_binary(int $decimal) : int {
}
function binary_to_decimal(int $binary) : int {
$binary = sanitize_int_input($binary);
$digits = str_split(strrev(strval($binary)));
$decimal = 0;
for ($i = 0; $i < sizeof($digits); $i++) {
@ -70,6 +75,23 @@ function binary_to_decimal(int $binary) : int {
}
function binary_to_hex(int $binary) : string {
$binary = sanitize_int_input($binary);
$decimal = binary_to_decimal($binary);
return decimal_to_hex($decimal);
}
function sanitize_int_input(int $input) : int {
$input = trim($input);
$input = stripslashes($input);
$input = htmlspecialchars($input);
return intval($input);
}
function sanitize_string_input(string $input) : string {
$input = trim($input);
$input = stripslashes($input);
$input = htmlspecialchars($input);
return strval($input);
}

40
index.php
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@ -9,38 +9,40 @@ include "./conversions.php";
</head>
<body>
<div class="inputs">
<form action="index.php" method="get">
<form action="<?php echo htmlspecialchars($_SERVER['PHP_SELF']); ?>" method="get">
<?php
session_start();
$bin = 0;
$dec = 0;
$hex = 0;
$bin = $dec = $hex = 0;
$new = false;
if (!isset($_GET['binary']) ||
!isset($_GET['decimal']) ||
!isset($_GET['hexadecimal'])) {
// Check if GET params are set
if (!isset($_GET['binary']) || !isset($_GET['decimal']) || !isset($_GET['hexadecimal'])) {
$new = true;
}
if (!isset($_SESSION['bin']) ||
!isset($_SESSION['dec']) ||
!isset($_SESSION['hex'])) {
$_SESSION['bin'] = 0;
$_SESSION['dec'] = 0;
$_SESSION['hex'] = 0;
if (!isset($_SESSION['bin']) || !isset($_SESSION['dec']) || !isset($_SESSION['hex'])) {
$_SESSION['bin'] = $_SESSION['dec'] = $_SESSION['hex'] = 0;
}
if (!$new) {
$last_bin = $_SESSION['bin'];
$last_dec = $_SESSION['dec'];
$last_hex = $_SESSION['hex'];
$last_bin = $_SESSION['bin'];
$last_dec = $_SESSION['dec'];
$last_hex = $_SESSION['hex'];
if (!$new) {
$bin = $_GET['binary'];
$dec = $_GET['decimal'];
$hex = $_GET['hexadecimal'];
}
// Check if it's a pasted url (all params are passed and aren't 0)
if (isset($_GET['binary']) && isset($_GET['decimal']) && isset($_GET['hexadecimal']) &&
$_GET['binary'] != 0 && $_GET['decimal'] != 0 && $_GET['hexadecimal'] != 0 &&
$bin == $last_bin && $dec == $last_dec && $hex == $last_hex) {
$new = true;
}
if (!$new) {
if ($bin == 0 && $dec == 0) {
$bin = hex_to_binary($hex);
$_SESSION['bin'] = $bin;
@ -80,9 +82,7 @@ include "./conversions.php";
$hex = binary_to_hex($bin);
$_SESSION['hex'] = $hex;
} else {
$bin = 0;
$dec = 0;
$hex = 0;
$bin = $dec = $hex = 0;
}
}
}

39
style.css
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@ -18,6 +18,23 @@
padding: 10px;
}
.api-container {
width: 75%;
margin: 25px auto auto;
border: 2px solid black;
border-radius: 50px;
padding: 10px;
}
.text {
margin-left: 10%;
line-height: 150%;
}
.no-dots {
list-style-type: none;
}
div {
margin-bottom: 10px;
}
@ -33,3 +50,25 @@ input {
width: 25%;
padding: 10px;
}
h2 {
text-align: center;
margin: auto;
width: 50%
}
code {
font-family: monospace, Serif;
background-color: #1d1d2d;
padding: 2px 5px;
border-radius: 5px;
width: auto;
}
pre {
font-family: monospace, Serif;
background-color: #1d1d2d;
padding: 2px 5px;
border-radius: 5px;
width: 43%;
}