add gitignore and jsonblob script

Author: neon-ninja

.gitignore

@@ -0,0 +1,2 @@
+config.php
+settings.php

jsonblob.php

@@ -0,0 +1,78 @@
+<?php
+
+require_once("settings.php");
+
+// This stops CORS issues
+header("access-control-allow-origin: *");
+header('Content-type: application/json');
+
+$METHOD = $_SERVER['REQUEST_METHOD'];
+$REQUEST_BODY = file_get_contents("php://input");
+
+function generateRandomString($length = 10) {
+    return substr(str_shuffle("0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"), 0, $length);
+}
+
+if ($METHOD=='GET') {
+  if (empty($_GET['id'])) {
+    http_response_code(400);
+    print "Blob ID cannot be empty";
+    die;
+  }
+  $id = $db->real_escape_string($_GET['id']);
+  $result = $db->query("SELECT data FROM blobs WHERE id='$id'");
+  if ($result->num_rows==0) {
+    http_response_code(404);
+    print "Not a valid blob ID";
+    die;
+  }
+  http_response_code(200);
+  print $result->fetch_row()[0];
+} else if ($METHOD=='POST') {
+  $id = generateRandomString();
+  $data = $db->real_escape_string($REQUEST_BODY);
+  $sql = "INSERT INTO blobs SET id='$id', data='$data'";
+  $db->query($sql);
+  if (!empty($db->error)) {
+    http_response_code(400);
+    print $db->error;
+    die;
+  }
+  http_response_code(201);
+  $location = $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'] . "?id=$id";
+  header("Location: $location");
+} else if ($METHOD=='PUT') {
+  if (empty($_GET['id'])) {
+    http_response_code(400);
+    print "Blob ID cannot be empty";
+    die;
+  }
+  $id = $db->real_escape_string($_GET['id']);
+  $data = $db->real_escape_string($REQUEST_BODY);
+  $sql = "REPLACE INTO blobs SET id='$id', data='$data'";
+  $db->query($sql);
+  if (!empty($db->error)) {
+    http_response_code(400);
+    print $db->error;
+    die;
+  }
+  http_response_code(201);
+  $location = $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
+  header("Location: $location");
+} else if ($METHOD=='DELETE') {
+  if (empty($_GET['id'])) {
+    http_response_code(400);
+    print "Blob ID cannot be empty";
+    die;
+  }
+  $id = $db->real_escape_string($_GET['id']);
+  $db->query("DELETE FROM blobs WHERE id='$id'");
+  if ($db->affected_rows==0) {
+    http_response_code(404);
+  }
+} else {
+  http_response_code(405);
+  echo "METHOD NOT ALLOWED";
+}
+
+?>