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cgthornt / hashing.cpp
Created Oct 25, 2018
Hash function in c++
View hashing.cpp
// Example:
// cout << hashString("hello world") << endl; // prints: 1128946856
#include <boost/functional/hash.hpp>
int hashString(const string& input) {
boost::hash<string> string_hash;
return string_hash(input);
// Example:
// System.out.println(Hasher.sha1("hello world")); // prints: 2aae6c35c94fcfb415dbe95f408b9ce91ee846ed
// System.out.println(Hasher.sha1AsInt("hello world")); // prints: 896314922
import java.nio.charset.*;
class Hasher {
public static String sha1(String input) {
cgthornt / pkcs7_degenerate.rb
Last active Sep 12, 2017
Ruby PKCS#7 Certificate Only Degenerate (application/x-x509-ca-ra-cert)
View pkcs7_degenerate.rb
# Creates a degenerate PKCS#7 certificate only in ruby (SCEP application/x-x509-ca-ra-cert)
# Inspiration:
# Tested Ruby 2.2.0 OSX 10.10, OpenSSL 1.0.1l
require 'openssl'
cert ='some_cert.crt')
# Fails ruby 2.2, OpenSSL 1.0.1l!!
p7certs =
cgthornt / update_ghost.rb
Created Sep 10, 2014
Automatically Update Ghost Blog
View update_ghost.rb
#!/usr/bin/env ruby
# Automatically updates ghost per instructions at:
# Make sure to back up your files before proceeding (i.e. git repo)!
require 'tempfile'
View sample_posts_controller_8.rb
class PostsController < ApiController
def create
@post = current_user.posts.create!(params.require(:post))
View sample_application_controller_3.rb
class ApiController < ActionController::Base
rescue_from ActionController::ParameterMissing do |e|
# You can even render a jbuilder template too!
render json: {error: e.message }, status: :unprocessable_entity
View sample_posts_controller_7.rb
class PostsController < ApiController
def update
@post = current_user.posts.find(params[:id])
def create
@post = current_user.posts.create!(params[:post])
View sample_application_controller_2.rb
class ApiController < ApplicationController::Base
rescue_from ActiveRecord::RecordNotFound do |e|
render json: { error: e.message }, status: :not_found
rescue_from ActiveRecord::RecordInvalid do |invalid|
# You can even use jbuilder templates to make this cleaner!
render 'shared/record_invalid', locals: { exception: invalid },
status: :unprocessable_entity
View sample_posts_controller_6.rb
class PostsController < ApiController
def update
@post = current_user.posts.find_by(id: params[:id])
# For error message
if !@post
return render json: { error: 'Unable to find blog post' }, status: :not_found
if !@post.update_attributes(param[:post])
return render json: {
error: "Could not update post",
View sample_posts_controller_5.rb
# app/views/posts/index.jbuilder
json.array! @posts, :id, :title, :description, :created_at, ...
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