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package hcloud
import (
"bytes"
"context"
"encoding/json"
"errors"
"fmt"
"net"
"net/url"
"strconv"
"time"
"github.com/hetznercloud/hcloud-go/hcloud/schema"
)
// NetworkZone specifies a network zone.
type NetworkZone string
// List of available Network Zones.
const (
NetworkZoneEUCentral NetworkZone = "eu-central"
)
// NetworkSubnetType specifies a type of a subnet.
type NetworkSubnetType string
// List of available network subnet types.
const (
NetworkSubnetTypeServer NetworkSubnetType = "server"
)
// Network represents a network in the Hetzner Cloud.
type Network struct {
ID int
Name string
Created time.Time
IPRange *net.IPNet
Subnets []NetworkSubnet
Routes []NetworkRoute
Servers []*Server
Protection NetworkProtection
Labels map[string]string
}
// NetworkSubnet represents a subnet of a network in the Hetzner Cloud.
type NetworkSubnet struct {
Type NetworkSubnetType
IPRange *net.IPNet
NetworkZone NetworkZone
Gateway net.IP
}
// NetworkRoute represents a route of a network.
type NetworkRoute struct {
Destination *net.IPNet
Gateway net.IP
}
// NetworkProtection represents the protection level of a network.
type NetworkProtection struct {
Delete bool
}
// NetworkClient is a client for the network API.
type NetworkClient struct {
client *Client
}
// GetByID retrieves a network by its ID. If the network does not exist, nil is returned.
func (c *NetworkClient) GetByID(ctx context.Context, id int) (*Network, *Response, error) {
req, err := c.client.NewRequest(ctx, "GET", fmt.Sprintf("/networks/%d", id), nil)
if err != nil {
return nil, nil, err
}
var body schema.NetworkGetResponse
resp, err := c.client.Do(req, &body)
if err != nil {
if IsError(err, ErrorCodeNotFound) {
return nil, resp, nil
}
return nil, nil, err
}
return NetworkFromSchema(body.Network), resp, nil
}
// GetByName retrieves a network by its name. If the network does not exist, nil is returned.
func (c *NetworkClient) GetByName(ctx context.Context, name string) (*Network, *Response, error) {
Networks, response, err := c.List(ctx, NetworkListOpts{Name: name})
if len(Networks) == 0 {
return nil, response, err
}
return Networks[0], response, err
}
// Get retrieves a network by its ID if the input can be parsed as an integer, otherwise it
// retrieves a network by its name. If the network does not exist, nil is returned.
func (c *NetworkClient) Get(ctx context.Context, idOrName string) (*Network, *Response, error) {
if id, err := strconv.Atoi(idOrName); err == nil {
return c.GetByID(ctx, int(id))
}
return c.GetByName(ctx, idOrName)
}
// NetworkListOpts specifies options for listing networks.
type NetworkListOpts struct {
ListOpts
Name string
}
func (l NetworkListOpts) values() url.Values {
vals := l.ListOpts.values()
if l.Name != "" {
vals.Add("name", l.Name)
}
return vals
}
// List returns a list of networks for a specific page.
func (c *NetworkClient) List(ctx context.Context, opts NetworkListOpts) ([]*Network, *Response, error) {
path := "/networks?" + opts.values().Encode()
req, err := c.client.NewRequest(ctx, "GET", path, nil)
if err != nil {
return nil, nil, err
}
var body schema.NetworkListResponse
resp, err := c.client.Do(req, &body)
if err != nil {
return nil, nil, err
}
Networks := make([]*Network, 0, len(body.Networks))
for _, s := range body.Networks {
Networks = append(Networks, NetworkFromSchema(s))
}
return Networks, resp, nil
}
// All returns all networks.
func (c *NetworkClient) All(ctx context.Context) ([]*Network, error) {
return c.AllWithOpts(ctx, NetworkListOpts{ListOpts: ListOpts{PerPage: 50}})
}
// AllWithOpts returns all networks for the given options.
func (c *NetworkClient) AllWithOpts(ctx context.Context, opts NetworkListOpts) ([]*Network, error) {
var allNetworks []*Network
_, err := c.client.all(func(page int) (*Response, error) {
opts.Page = page
Networks, resp, err := c.List(ctx, opts)
if err != nil {
return resp, err
}
allNetworks = append(allNetworks, Networks...)
return resp, nil
})
if err != nil {
return nil, err
}
return allNetworks, nil
}
// Delete deletes a network.
func (c *NetworkClient) Delete(ctx context.Context, network *Network) (*Response, error) {
req, err := c.client.NewRequest(ctx, "DELETE", fmt.Sprintf("/networks/%d", network.ID), nil)
if err != nil {
return nil, err
}
return c.client.Do(req, nil)
}
// NetworkUpdateOpts specifies options for updating a network.
type NetworkUpdateOpts struct {
Name string
Labels map[string]string
}
// Update updates a network.
func (c *NetworkClient) Update(ctx context.Context, network *Network, opts NetworkUpdateOpts) (*Network, *Response, error) {
reqBody := schema.NetworkUpdateRequest{
Name: opts.Name,
}
if opts.Labels != nil {
reqBody.Labels = &opts.Labels
}
reqBodyData, err := json.Marshal(reqBody)
if err != nil {
return nil, nil, err
}
path := fmt.Sprintf("/networks/%d", network.ID)
req, err := c.client.NewRequest(ctx, "PUT", path, bytes.NewReader(reqBodyData))
if err != nil {
return nil, nil, err
}
respBody := schema.NetworkUpdateResponse{}
resp, err := c.client.Do(req, &respBody)
if err != nil {
return nil, resp, err
}
return NetworkFromSchema(respBody.Network), resp, nil
}
// NetworkCreateOpts specifies options for creating a new network.
type NetworkCreateOpts struct {
Name string
IPRange *net.IPNet
Subnets []NetworkSubnet
Routes []NetworkRoute
Labels map[string]string
}
// Validate checks if options are valid.
func (o NetworkCreateOpts) Validate() error {
if o.Name == "" {
return errors.New("missing name")
}
if o.IPRange == nil || o.IPRange.String() == "" {
return errors.New("missing IP range")
}
return nil
}
// Create creates a new network.
func (c *NetworkClient) Create(ctx context.Context, opts NetworkCreateOpts) (*Network, *Response, error) {
if err := opts.Validate(); err != nil {
return nil, nil, err
}
reqBody := schema.NetworkCreateRequest{
Name: opts.Name,
IPRange: opts.IPRange.String(),
}
for _, subnet := range opts.Subnets {
reqBody.Subnets = append(reqBody.Subnets, schema.NetworkSubnet{
Type: string(subnet.Type),
IPRange: subnet.IPRange.String(),
NetworkZone: string(subnet.NetworkZone),
})
}
for _, route := range opts.Routes {
reqBody.Routes = append(reqBody.Routes, schema.NetworkRoute{
Destination: route.Destination.String(),
Gateway: route.Gateway.String(),
})
}
if opts.Labels != nil {
reqBody.Labels = &opts.Labels
}
reqBodyData, err := json.Marshal(reqBody)
if err != nil {
return nil, nil, err
}
req, err := c.client.NewRequest(ctx, "POST", "/networks", bytes.NewReader(reqBodyData))
if err != nil {
return nil, nil, err
}
respBody := schema.NetworkCreateResponse{}
resp, err := c.client.Do(req, &respBody)
if err != nil {
return nil, resp, err
}
return NetworkFromSchema(respBody.Network), resp, nil
}
// NetworkChangeIPRangeOpts specifies options for changing the IP range of a network.
type NetworkChangeIPRangeOpts struct {
IPRange *net.IPNet
}
// ChangeIPRange changes the IP range of a network.
func (c *NetworkClient) ChangeIPRange(ctx context.Context, network *Network, opts NetworkChangeIPRangeOpts) (*Action, *Response, error) {
reqBody := schema.NetworkActionChangeIPRangeRequest{
IPRange: opts.IPRange.String(),
}
reqBodyData, err := json.Marshal(reqBody)
if err != nil {
return nil, nil, err
}
path := fmt.Sprintf("/networks/%d/actions/change_ip_range", network.ID)
req, err := c.client.NewRequest(ctx, "POST", path, bytes.NewReader(reqBodyData))
if err != nil {
return nil, nil, err
}
respBody := schema.NetworkActionChangeIPRangeResponse{}
resp, err := c.client.Do(req, &respBody)
if err != nil {
return nil, resp, err
}
return ActionFromSchema(respBody.Action), resp, nil
}
// NetworkAddSubnetOpts specifies options for adding a subnet to a network.
type NetworkAddSubnetOpts struct {
Subnet NetworkSubnet
}
// AddSubnet adds a subnet to a network.
func (c *NetworkClient) AddSubnet(ctx context.Context, network *Network, opts NetworkAddSubnetOpts) (*Action, *Response, error) {
reqBody := schema.NetworkActionAddSubnetRequest{
Type: string(opts.Subnet.Type),
NetworkZone: string(opts.Subnet.NetworkZone),
}
if opts.Subnet.IPRange != nil {
reqBody.IPRange = opts.Subnet.IPRange.String()
}
reqBodyData, err := json.Marshal(reqBody)
if err != nil {
return nil, nil, err
}
path := fmt.Sprintf("/networks/%d/actions/add_subnet", network.ID)
req, err := c.client.NewRequest(ctx, "POST", path, bytes.NewReader(reqBodyData))
if err != nil {
return nil, nil, err
}
respBody := schema.NetworkActionAddSubnetResponse{}
resp, err := c.client.Do(req, &respBody)
if err != nil {
return nil, resp, err
}
return ActionFromSchema(respBody.Action), resp, nil
}
// NetworkDeleteSubnetOpts specifies options for deleting a subnet from a network.
type NetworkDeleteSubnetOpts struct {
Subnet NetworkSubnet
}
// DeleteSubnet deletes a subnet from a network.
func (c *NetworkClient) DeleteSubnet(ctx context.Context, network *Network, opts NetworkDeleteSubnetOpts) (*Action, *Response, error) {
reqBody := schema.NetworkActionDeleteSubnetRequest{
IPRange: opts.Subnet.IPRange.String(),
}
reqBodyData, err := json.Marshal(reqBody)
if err != nil {
return nil, nil, err
}
path := fmt.Sprintf("/networks/%d/actions/delete_subnet", network.ID)
req, err := c.client.NewRequest(ctx, "POST", path, bytes.NewReader(reqBodyData))
if err != nil {
return nil, nil, err
}
respBody := schema.NetworkActionDeleteSubnetResponse{}
resp, err := c.client.Do(req, &respBody)
if err != nil {
return nil, resp, err
}
return ActionFromSchema(respBody.Action), resp, nil
}
// NetworkAddRouteOpts specifies options for adding a route to a network.
type NetworkAddRouteOpts struct {
Route NetworkRoute
}
// AddRoute adds a route to a network.
func (c *NetworkClient) AddRoute(ctx context.Context, network *Network, opts NetworkAddRouteOpts) (*Action, *Response, error) {
reqBody := schema.NetworkActionAddRouteRequest{
Destination: opts.Route.Destination.String(),
Gateway: opts.Route.Gateway.String(),
}
reqBodyData, err := json.Marshal(reqBody)
if err != nil {
return nil, nil, err
}
path := fmt.Sprintf("/networks/%d/actions/add_route", network.ID)
req, err := c.client.NewRequest(ctx, "POST", path, bytes.NewReader(reqBodyData))
if err != nil {
return nil, nil, err
}
respBody := schema.NetworkActionAddSubnetResponse{}
resp, err := c.client.Do(req, &respBody)
if err != nil {
return nil, resp, err
}
return ActionFromSchema(respBody.Action), resp, nil
}
// NetworkDeleteRouteOpts specifies options for deleting a route from a network.
type NetworkDeleteRouteOpts struct {
Route NetworkRoute
}
// DeleteRoute deletes a route from a network.
func (c *NetworkClient) DeleteRoute(ctx context.Context, network *Network, opts NetworkDeleteRouteOpts) (*Action, *Response, error) {
reqBody := schema.NetworkActionDeleteRouteRequest{
Destination: opts.Route.Destination.String(),
Gateway: opts.Route.Gateway.String(),
}
reqBodyData, err := json.Marshal(reqBody)
if err != nil {
return nil, nil, err
}
path := fmt.Sprintf("/networks/%d/actions/delete_route", network.ID)
req, err := c.client.NewRequest(ctx, "POST", path, bytes.NewReader(reqBodyData))
if err != nil {
return nil, nil, err
}
respBody := schema.NetworkActionDeleteSubnetResponse{}
resp, err := c.client.Do(req, &respBody)
if err != nil {
return nil, resp, err
}
return ActionFromSchema(respBody.Action), resp, nil
}
// NetworkChangeProtectionOpts specifies options for changing the resource protection level of a network.
type NetworkChangeProtectionOpts struct {
Delete *bool
}
// ChangeProtection changes the resource protection level of a network.
func (c *NetworkClient) ChangeProtection(ctx context.Context, network *Network, opts NetworkChangeProtectionOpts) (*Action, *Response, error) {
reqBody := schema.NetworkActionChangeProtectionRequest{
Delete: opts.Delete,
}
reqBodyData, err := json.Marshal(reqBody)
if err != nil {
return nil, nil, err
}
path := fmt.Sprintf("/networks/%d/actions/change_protection", network.ID)
req, err := c.client.NewRequest(ctx, "POST", path, bytes.NewReader(reqBodyData))
if err != nil {
return nil, nil, err
}
respBody := schema.NetworkActionChangeProtectionResponse{}
resp, err := c.client.Do(req, &respBody)
if err != nil {
return nil, resp, err
}
return ActionFromSchema(respBody.Action), resp, err
}
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