initial commit

README.md

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+# How To
+
+Basically, you can drop this onto a php-enabled webserver and have it Just Work, with one caveat. You have to have ImageMagick installed along with the php Imagick module.

config.php

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+<?php
+
+// Change the second argument for better database security so that
+// only you can enter work records
+define("FORM_PAGE", "addwork");
+
+// Database location; you can change it if you want
+define("DB_LOCATION", "./kudos.db");
+
+// Something to show in page titles. You could change this to "Kudos for [My Name]", etc.
+define("SITE_NAME", "Kudos");
+
+// Text Drawing Settings
+$id = new ImagickDraw();
+$id->setFont("./fonts/open-sans.ttf");
+$id->setFontSize(16);
+$id->setStrokeOpacity(1);
+$id->setStrokeColor("#000000");
+$id->setFillColor("#000000");

db.php

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+<?php
+require_once('./config.php');
+
+class KudosDB extends SQLite3 {
+  function __construct() {
+    $this->open(DB_LOCATION);
+  }
+}

form.php

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+<form method="POST" action="kudos.php">
+  <div class="form-row">
+    <label for="newwork">ID of New Work</label>
+    <input name="newwork" type="text" required />
+  </div>
+  <div class="form-row">
+    <button type="submit">Add</button>
+  </div>
+</form>

kudos.php

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+<?php
+require_once('./config.php');
+require_once('./db.php');
+
+// Open database
+$db = new KudosDB();
+
+// Get the user's IP address and the work ID, whatever it is
+$ip = $_SERVER['REMOTE_ADDR'];
+
+if (array_key_exists('give', $_GET)) {
+  // We're giving kudos
+
+  // the work ID is a text string so it can be a number, it can be an abbreviation,
+  // it just can't have weird characters in it that would fuck up the database
+  $work = filter_var($_GET['give'], FILTER_SANITIZE_STRING);
+
+  // check if the work exists so people can't fill the db full of junk
+  $exists = $db->query("select count(*) from works where id={$work};");
+  // check if the IP address has already left kudos
+  $prevkudos = $db->query("select count(*) from kudos where workid={$work} and ipaddr={$ip};");
+  if ($exists > 0 && $prevkudos == 0) {
+    $db->query("insert into kudos (workid, ipaddr) values ({$work}, {$ip});");
+
+  }
+} else if (array_key_exists('show', $_GET)) {
+  // We're showing the number of kudos
+  
+  $work = filter_var($_GET['show'], FILTER_SANITIZE_STRING);
+  $count = $db->query("select count(*) from works where id={$work};");
+
+  // creates a new image
+  $image = new Imagick();
+  // writes the number
+  $id->annotation(0, 0, $count);
+  $image->newImage(50, 300, "none");
+  $image->setImageFormat("png");
+  $image->drawImage($id);
+  $image->trimImage(0);
+
+  // serves this as an image
+  header("Content-Type: image/png");
+  echo $imagick->getImageBlob();
+} else if (array_key_exists(FORM_PAGE, $_GET)) {
+  // We're showing a simple form for creating new works
+  
+  $content = file_get_contents("./form.php");
+  require("./template.php");
+  die(1);
+} else if (array_key_exists('newwork', $_POST)) {
+  $work = filter_var($_POST['newwork'], FILTER_SANITIZE_STRING);
+  // check if the work exists already since we can't do duplicates
+  $exists = $db->query("select count(*) from works where id={$work};");
+  $content = "";
+  if ($exists == 0) {
+    // it doesn't already exist, so add it to the database
+    $result = $db->query("insert into works (id) values ('{$work}');");
+    // show a response with a message that tells us if it worked or not
+    if ($result) {
+      $content = "<p>Your new work has been added! The work ID is {$work}.</p>";
+      $content .= "<p>Link to give kudos: <a href=\"//{$_SERVER['HTTP_HOST']}{$_SERVER['REQUEST_URI']}?give={$work}\">//{$_SERVER['HTTP_HOST']}{$_SERVER['REQUEST_URI']}?give={$work}</a></p>";
+      $content .= "<p>Link to kudos counter: <a href=\"//{$_SERVER['HTTP_HOST']}{$_SERVER['REQUEST_URI']}?show={$work}\">//{$_SERVER['HTTP_HOST']}{$_SERVER['REQUEST_URI']}?show={$work}</a></p>";
+      $content .= file_get_contents("./form.php");
+    } else {
+      $content = "<p class='error'>Whoops! It seems like something went wrong; try again.</p>";
+      $content .= file_get_contents("./form.php");
+    }
+  } else {
+    $content = "<p class='error'>You've already got a work by this name; try a different ID.</p>";
+    $content .= file_get_contents("./form.php");
+  }
+  
+  require("./template.php");
+  die(1);
+}

style.css

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+* {
+  box-sizing: border-box;
+}
+
+body {
+  background-color: #DDD;
+  color: #111;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  padding: 50px;
+  font-family: "Open Sans", sans-serif;
+  font-size: 16px;
+}
+
+#container {
+  background-color: white;
+  padding: 20px;
+  border: 1px #111 solid;
+  display: block;
+  max-width: 100%;
+  width: 600px;
+  text-align: left;
+}
+
+h1 {
+  font-size: 1.5em;
+  font-weight: normal;
+  border-bottom: 1px #111 solid;
+  padding-bottom: 5px;
+  margin-bottom: 5px;
+  margin-top: 0;
+}
+
+form {
+  margin: 0;
+}
+
+.form-row {
+  margin: 5px 0;
+}
+
+label {
+  display: block;
+  font-weight: bold;
+  font-size: 1em;
+}
+
+input[type="text"] {
+  border: 1px #666 solid;
+  background-color: white;
+  padding: 2px;
+  font-size: 1em;
+}
+
+button[type="submit"] {
+  font-family: "Open Sans", sans-serif;
+  font-size: 1em;
+  border: none;
+  background-color: #111;
+  color: #DDD;
+  padding: 3px 15px;
+  border-radius: 15px;
+}

template.php

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+<?php // you can edit this file if you want to make it fit in with your site etc. ?>
+<!doctype html>
+<html lang="en">
+  <head>
+    <title><?= SITE_NAME; ?></title>
+    <link rel="stylesheet" type="text/css" href="./style.css" />
+  </head>
+  <body>
+    <div id="container">
+      <h1><?= SITE_NAME; ?></h1>
+      <div class="response">
+        <?= $content; ?>
+      </div>
+    </div>
+  </body>
+</html>