forgeplus/app/services/webhook/client.rb

module Webhook::Client  

  # uuid SecureRandom.uuid
  #  hmac = OpenSSL::HMAC.new(secret, OpenSSL::Digest::SHA1.new)
  #  message = Gitea::WebhookTask.last.read_attribute_before_type_cast("payload_content")
  # hmac.update(message)
  # sha1 = hmac.digest.unpack('H*').first

  attr_reader :uuid, :event, :http_method, :content_type, :url, :secret, :payload_content
  attr_accessor :request_content, :response_content

  def initialize(opts)
    @uuid = opts[:uuid]
    @event = opts[:event]
    @http_method = opts[:http_method]
    @content_type = opts[:content_type]
    @url = opts[:url]
    @secret = opts[:secret]
    @payload_content = opts[:payload_content]
    @request_content = {}
    @response_content = {}
  end

  def do_request 
    headers = {}
    headers['Content-Type'] = trans_content_type
    headers["X-Gitea-Delivery"] = @uuid 
    headers["X-Gitea-Event"] = @event 
    headers["X-Gitea-Event-Type"] = @event
    headers["X-Gitea-Signature"] = signatureSHA256
    headers["X-Gogs-Delivery"] = @uuid 
    headers["X-Gogs-Event"] = @event 
    headers["X-Gogs-Event-Type"] = @event 
    headers["X-Gogs-Signature"] = signatureSHA256
    headers["X-Hub-Signature"] = "sha1=" + signatureSHA1
    headers["X-Hub-Signature-256"] = "sha256=" + signatureSHA256
    headers["X-GitHub-Delivery"] = @uuid 
    headers["X-GitHub-Event"] = @event 
    headers["X-GitHub-Event-Type"] = @event
    @request_content["url"] = @url 
    @request_content["http_method"] = @http_method
    @request_content["headers"] = headers

    response = RestClient::Request.execute(method: trans_http_method, url: @url, headers: headers, payload: payload_content) {|response, request, result| response }

    @response_content["status"] = response.code 
    @response_content["headers"] = response.headers 
    @response_content["body"] = response.body.to_json

    return @request_content, @response_content
  end

  def request_content 
    @request_content
  end

  def response_content 
    @response_content 
  end

  private 
  def signatureSHA1
    hmac = OpenSSL::HMAC.new(@secret, OpenSSL::Digest::SHA1.new)
    message = @payload_content

    hmac.digest.unpack('H*').first
  end

  def signatureSHA256
    hmac = OpenSSL::HMAC.new(@secret, OpenSSL::Digest::SHA256.new)
    message = @payload_content

    hmac.digest.unpack('H*').first
  end

  def trans_content_type 
    if @content_type == "form"
      return "application/x-www-form-urlencoded"
    else 
      return "application/json"
    end
  end

  def trans_http_method 
    if @http_method == "GET"
      return :get
    else 
      return :post
    end
  end

end