def parse()

in azurelinuxagent/common/protocol/ovfenv.py [0:0]
45 lines of code
6 McCabe index (conditional complexity)

    def parse(self, xml_text):
        """
        Parse xml tree, retreiving user and ssh key information.
        Return self.
        """
        wans = WA_NAME_SPACE
        ovfns = OVF_NAME_SPACE

        xml_doc = parse_doc(xml_text)
        
        environment = find(xml_doc, "Environment", namespace=ovfns)
        _validate_ovf(environment, "Environment not found")

        section = find(environment, "ProvisioningSection", namespace=wans)
        _validate_ovf(section, "ProvisioningSection not found")

        version = findtext(environment, "Version", namespace=wans)
        _validate_ovf(version, "Version not found")

        if version > OVF_VERSION:
            logger.warn("Newer provisioning configuration detected. "
                        "Please consider updating waagent")
        
        conf_set = find(section, "LinuxProvisioningConfigurationSet", 
                        namespace=wans)
        _validate_ovf(conf_set, "LinuxProvisioningConfigurationSet not found")

        self.hostname = findtext(conf_set, "HostName", namespace=wans)
        _validate_ovf(self.hostname, "HostName not found")

        self.username = findtext(conf_set, "UserName", namespace=wans)
        _validate_ovf(self.username, "UserName not found")
        
        self.user_password = findtext(conf_set, "UserPassword", namespace=wans)

        self.customdata = findtext(conf_set, "CustomData", namespace=wans)
        
        auth_option = findtext(conf_set, "DisableSshPasswordAuthentication", 
                               namespace=wans)
        if auth_option is not None and auth_option.lower() == "true":
            self.disable_ssh_password_auth = True
        else:
            self.disable_ssh_password_auth = False

        public_keys = findall(conf_set, "PublicKey", namespace=wans)
        for public_key in public_keys:
            path = findtext(public_key, "Path", namespace=wans)
            fingerprint = findtext(public_key, "Fingerprint", namespace=wans)
            value = findtext(public_key, "Value", namespace=wans)
            self.ssh_pubkeys.append((path, fingerprint, value))

        keypairs = findall(conf_set, "KeyPair", namespace=wans)
        for keypair in keypairs:
            path = findtext(keypair, "Path", namespace=wans)
            fingerprint = findtext(keypair, "Fingerprint", namespace=wans)
            self.ssh_keypairs.append((path, fingerprint))

        platform_settings_section = find(environment, "PlatformSettingsSection", namespace=wans)
        _validate_ovf(platform_settings_section, "PlatformSettingsSection not found")

        platform_settings = find(platform_settings_section, "PlatformSettings", namespace=wans)
        _validate_ovf(platform_settings, "PlatformSettings not found")

        self.provision_guest_agent = findtext(platform_settings, "ProvisionGuestAgent", namespace=wans)
        _validate_ovf(self.provision_guest_agent, "ProvisionGuestAgent not found")