module AbrtProxy

# File lib/smart_proxy_abrt/abrt_lib.rb, line 73
def self.common_name(request)
  client_cert = request.env['SSL_CLIENT_CERT']
  raise AbrtProxy::Error::Unauthorized, "Client certificate required" if client_cert.to_s.empty?

  begin
    client_cert = OpenSSL::X509::Certificate.new(client_cert)
  rescue OpenSSL::OpenSSLError => e
    raise AbrtProxy::Error::CertificateError, e.message
  end

  cn = client_cert.subject.to_a.detect { |name, value| name == 'CN' }
  cn = cn[1] unless cn.nil?
  raise AbrtProxy::Error::CertificateError, "Common Name not found in the certificate" unless cn

  return cn
end

# File lib/smart_proxy_abrt/abrt_lib.rb, line 52
def self.faf_request(path, content, content_type="application/json")
  uri              = URI.parse(AbrtProxy::Plugin.settings.server_url.to_s)
  http             = Net::HTTP.new(uri.host, uri.port)
  http.use_ssl     = uri.scheme == 'https'
  http.verify_mode = AbrtProxy::Plugin.settings.server_ssl_noverify ? OpenSSL::SSL::VERIFY_NONE
                                                                    : OpenSSL::SSL::VERIFY_PEER

  if AbrtProxy::Plugin.settings.server_ssl_cert && !AbrtProxy::Plugin.settings.server_ssl_cert.to_s.empty?          && AbrtProxy::Plugin.settings.server_ssl_key && !AbrtProxy::Plugin.settings.server_ssl_key.to_s.empty?
    http.cert = OpenSSL::X509::Certificate.new(File.read(AbrtProxy::Plugin.settings.server_ssl_cert))
    http.key  = OpenSSL::PKey::RSA.new(File.read(AbrtProxy::Plugin.settings.server_ssl_key), nil)
  end

  headers, body = self.form_data_file content, content_type

  path = [uri.path, path].join unless uri.path.empty?
  response = http.start { |con| con.post(path, body, headers) }

  response
end

# File lib/smart_proxy_abrt/abrt_lib.rb, line 32
def self.form_data_file(content, file_content_type)
  # Assemble the request body using the special multipart format
  thepart =  "Content-Disposition: form-data; name=\"file\"; filename=\"*buffer*\"\r\n" +
             "Content-Type: #{ file_content_type }\r\n\r\n#{ content }\r\n"

  boundary = self.suggest_separator
  while thepart.include? boundary
    boundary = self.suggest_separator
  end

  body = "--" + boundary + "\r\n" + thepart + "--" + boundary + "--\r\n"
  headers = {
    "User-Agent"     => "foreman-proxy/#{Proxy::VERSION}",
    "Content-Type"   => "multipart/form-data; boundary=#{ boundary }",
    "Content-Length" => body.length.to_s
  }

  return headers, body
end

# File lib/smart_proxy_abrt/abrt_lib.rb, line 20
def self.random_hex_string(nbytes)
  OpenSSL::Random.random_bytes(nbytes).unpack('H*').join
end

# File lib/smart_proxy_abrt/abrt_lib.rb, line 25
def self.suggest_separator
    separator = "-"*28
    separator + self.random_hex_string(16)
end