lex-deeit/app/controllers/certificates_controller.rb

require 'openssl'

class CertificatesController < ApplicationController
  before_action :set_certificate, only: [:show, :edit, :update, :destroy]

  # GET /certificates
  # GET /certificates.json
  def index
    @certificates = Certificate.all
  end

  # GET /certificates/1
  # GET /certificates/1.json
  def show
  end

  # GET /certificates/new
  def new
    @certificate = Certificate.new
  end

  # GET /certificates/1/edit
  def edit
  end

  # POST /certificates
  # POST /certificates.json
  def create
    @certificate = Certificate.new(certificate_params)

    key = OpenSSL::PKey::RSA.new 4096
    name = OpenSSL::X509::Name.parse 'CN=lex-deeit/DC=weird-web-workers/DC=org'

    cert = OpenSSL::X509::Certificate.new
    cert.version = 2
    cert.serial = 0
    cert.not_before = Time.now
    cert.not_after = Time.now + 3600

    cert.public_key = key.public_key
    cert.subject = name
    cert.sign key, OpenSSL::Digest::SHA256.new

    @certificate.key = key.to_pem
    @certificate.cert = cert.to_pem

    respond_to do |format|
      if @certificate.save
        format.html { redirect_to @certificate, notice: 'Certificate was successfully created.' }
        format.json { render :show, status: :created, location: @certificate }
      else
        format.html { render :new }
        format.json { render json: @certificate.errors, status: :unprocessable_entity }
      end
    end
  end

  # PATCH/PUT /certificates/1
  # PATCH/PUT /certificates/1.json
  def update
    respond_to do |format|
      if @certificate.update(certificate_params)
        format.html { redirect_to @certificate, notice: 'Certificate was successfully updated.' }
        format.json { render :show, status: :ok, location: @certificate }
      else
        format.html { render :edit }
        format.json { render json: @certificate.errors, status: :unprocessable_entity }
      end
    end
  end

  # DELETE /certificates/1
  # DELETE /certificates/1.json
  def destroy
    @certificate.destroy
    respond_to do |format|
      format.html { redirect_to certificates_url, notice: 'Certificate was successfully destroyed.' }
      format.json { head :no_content }
    end
  end

  private
    # Use callbacks to share common setup or constraints between actions.
    def set_certificate
      @certificate = Certificate.find(params[:id])
    end

    # Never trust parameters from the scary internet, only allow the white list through.
    def certificate_params
      params.require(:certificate).permit(:key, :cert, :active)
    end
end

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