Merge branch 'ash.mckenzie/minor-tidy-up' into 'master'

Refactor for re-usability for future MR's

See merge request gitlab-org/gitlab-shell!210

1 files changed, 118 insertions, 0 deletions

diff --git a/lib/http_helper.rb b/lib/http_helper.rb
new file mode 100644
index 0000000..62d0c51
--- /dev/null
+++ b/lib/http_helper.rb
@@ -0,0 +1,118 @@
+module HTTPHelper
+  READ_TIMEOUT = 300
+
+  protected
+
+  def config
+    @config ||= GitlabConfig.new
+  end
+
+  def base_api_endpoint
+    "#{config.gitlab_url}/api/v4"
+  end
+
+  def internal_api_endpoint
+    "#{base_api_endpoint}/internal"
+  end
+
+  def http_client_for(uri, options = {})
+    http = if uri.is_a?(URI::HTTPUNIX)
+             Net::HTTPUNIX.new(uri.hostname)
+           else
+             Net::HTTP.new(uri.host, uri.port)
+           end
+
+    http.read_timeout = options[:read_timeout] || read_timeout
+
+    if uri.is_a?(URI::HTTPS)
+      http.use_ssl = true
+      http.cert_store = cert_store
+      http.verify_mode = OpenSSL::SSL::VERIFY_NONE if config.http_settings['self_signed_cert']
+    end
+
+    http
+  end
+
+  def http_request_for(method, uri, params: {}, headers: {}, options: {})
+    request_klass = method == :get ? Net::HTTP::Get : Net::HTTP::Post
+    request = request_klass.new(uri.request_uri, headers)
+
+    user = config.http_settings['user']
+    password = config.http_settings['password']
+    request.basic_auth(user, password) if user && password
+
+    if options[:json]
+      request.body = options[:json].merge(secret_token: secret_token).to_json
+    else
+      request.set_form_data(params.merge(secret_token: secret_token))
+    end
+
+    if uri.is_a?(URI::HTTPUNIX)
+      # The HTTPUNIX HTTP client does not set a correct Host header. This can
+      # lead to 400 Bad Request responses.
+      request['Host'] = 'localhost'
+    end
+
+    request
+  end
+
+  def request(method, url, params: {}, headers: {}, options: {})
+    $logger.debug('Performing request', method: method.to_s.upcase, url: url)
+
+    uri = URI.parse(url)
+    http = http_client_for(uri, options)
+    request = http_request_for(method, uri,
+                               params: params,
+                               headers: headers,
+                               options: options)
+
+    begin
+      start_time = Time.new
+      response = http.start { http.request(request) }
+    rescue => e
+      $logger.warn('Failed to connect', method: method.to_s.upcase, url: url, error: e)
+      raise GitlabNet::ApiUnreachableError
+    ensure
+      $logger.info('finished HTTP request', method: method.to_s.upcase, url: url, duration: Time.new - start_time)
+    end
+
+    if response.code == "200"
+      $logger.debug('Received response', code: response.code, body: response.body)
+    else
+      $logger.error('Call failed', method: method.to_s.upcase, url: url, code: response.code, body: response.body)
+    end
+
+    response
+  end
+
+  def get(url, headers: {}, options: {})
+    request(:get, url, headers: headers, options: options)
+  end
+
+  def post(url, params, headers: {}, options: {})
+    request(:post, url, params: params, headers: headers, options: options)
+  end
+
+  def cert_store
+    @cert_store ||= begin
+      store = OpenSSL::X509::Store.new
+      store.set_default_paths
+
+      ca_file = config.http_settings['ca_file']
+      store.add_file(ca_file) if ca_file
+
+      ca_path = config.http_settings['ca_path']
+      store.add_path(ca_path) if ca_path
+
+      store
+    end
+  end
+
+  def secret_token
+    @secret_token ||= File.read config.secret_file
+  end
+
+  def read_timeout
+    config.http_settings['read_timeout'] || READ_TIMEOUT
+  end
+end