Code Explainers

Code explainers tagged #security

python 
import os
import uuid
 
from flask import Blueprint, current_app, jsonify, request

Handling secure file uploads in Flask

file-upload validation blueprints
Intermediate 8 steps
ruby 
class Credentials
  SENSITIVE = %i[password api_key secret_token access_key].freeze
  REDACTED = "[REDACTED]".freeze
 

Redacting secrets in Ruby object output

serialization introspection security
Intermediate 7 steps
php 
<?php
 
namespace App\Services;
 

Building signed, expiring download URLs in PHP in Laravel

hmac url-signing authentication
Intermediate 7 steps
go 
package handlers
 
import (
	"fmt"

Handling secure file uploads in Gin

file-upload validation security
Intermediate 7 steps
php 
<?php
 
class ImageUploadService
{

Validating file uploads safely in PHP

file-upload input-validation security
Intermediate 8 steps
php 
<?php
 
namespace App\View;
 

Building a safe HTML escaper in PHP

security xss escaping
Intermediate 6 steps
ruby 
require 'json'
require 'set'
 
class SensitiveScrubber

Recursively scrubbing secrets from JSON

recursion data-masking pattern-matching
Intermediate 7 steps
ruby 
class SessionsController < ApplicationController
  MAX_ATTEMPTS = 5
  THROTTLE_WINDOW = 15.minutes
 

Throttling failed logins in Rails

rate-limiting authentication caching
Intermediate 7 steps
python 
import hashlib
import hmac
import os
 

Verifying signed payment webhooks in Flask

hmac webhooks signature verification
Intermediate 7 steps
php 
<?php
 
final class CsrfGuard
{

Building a per-form CSRF guard in PHP

csrf security sessions
Intermediate 8 steps