wings/remote/servers.go
2021-02-01 21:32:34 -08:00

171 lines
4.2 KiB
Go

package remote
import (
"context"
"fmt"
"strconv"
"sync"
"emperror.dev/errors"
"github.com/apex/log"
"golang.org/x/sync/errgroup"
)
const (
ProcessStopCommand = "command"
ProcessStopSignal = "signal"
ProcessStopNativeStop = "stop"
)
// GetServers returns all of the servers that are present on the Panel making
// parallel API calls to the endpoint if more than one page of servers is
// returned.
func (c *client) GetServers(ctx context.Context, limit int) ([]RawServerData, error) {
servers, meta, err := c.getServersPaged(ctx, 0, limit)
if err != nil {
return nil, err
}
var mu sync.Mutex
if meta.LastPage > 1 {
g, ctx := errgroup.WithContext(ctx)
for page := meta.CurrentPage + 1; page <= meta.LastPage; page++ {
page := page
g.Go(func() error {
ps, _, err := c.getServersPaged(ctx, int(page), limit)
if err != nil {
return err
}
mu.Lock()
servers = append(servers, ps...)
mu.Unlock()
return nil
})
}
if err := g.Wait(); err != nil {
return nil, err
}
}
return servers, nil
}
func (c *client) GetServerConfiguration(ctx context.Context, uuid string) (ServerConfigurationResponse, error) {
var config ServerConfigurationResponse
res, err := c.get(ctx, fmt.Sprintf("/servers/%s", uuid), nil)
if err != nil {
return config, err
}
defer res.Body.Close()
if res.HasError() {
return config, err
}
err = res.BindJSON(&config)
return config, err
}
func (c *client) GetInstallationScript(ctx context.Context, uuid string) (InstallationScript, error) {
res, err := c.get(ctx, fmt.Sprintf("/servers/%s/install", uuid), nil)
if err != nil {
return InstallationScript{}, err
}
defer res.Body.Close()
if res.HasError() {
return InstallationScript{}, err
}
var config InstallationScript
err = res.BindJSON(&config)
return config, err
}
func (c *client) SetInstallationStatus(ctx context.Context, uuid string, successful bool) error {
resp, err := c.post(ctx, fmt.Sprintf("/servers/%s/install", uuid), d{"successful": successful})
if err != nil {
return err
}
defer resp.Body.Close()
return resp.Error()
}
func (c *client) SetArchiveStatus(ctx context.Context, uuid string, successful bool) error {
resp, err := c.post(ctx, fmt.Sprintf("/servers/%s/archive", uuid), d{"successful": successful})
if err != nil {
return err
}
defer resp.Body.Close()
return resp.Error()
}
func (c *client) SetTransferStatus(ctx context.Context, uuid string, successful bool) error {
state := "failure"
if successful {
state = "success"
}
resp, err := c.get(ctx, fmt.Sprintf("/servers/%s/transfer/%s", uuid, state), nil)
if err != nil {
return err
}
defer resp.Body.Close()
return resp.Error()
}
// ValidateSftpCredentials makes a request to determine if the username and
// password combination provided is associated with a valid server on the instance
// using the Panel's authentication control mechanisms. This will get itself
// throttled if too many requests are made, allowing us to completely offload
// all of the authorization security logic to the Panel.
func (c *client) ValidateSftpCredentials(ctx context.Context, request SftpAuthRequest) (SftpAuthResponse, error) {
var auth SftpAuthResponse
res, err := c.post(ctx, "/sftp/auth", request)
if err != nil {
return auth, err
}
e := res.Error()
if e != nil {
if res.StatusCode >= 400 && res.StatusCode < 500 {
log.WithFields(log.Fields{
"subsystem": "sftp",
"username": request.User,
"ip": request.IP,
}).Warn(e.Error())
return auth, &SftpInvalidCredentialsError{}
}
return auth, errors.New(e.Error())
}
err = res.BindJSON(&auth)
return auth, err
}
// getServersPaged returns a subset of servers from the Panel API using the
// pagination query parameters.
func (c *client) getServersPaged(ctx context.Context, page, limit int) ([]RawServerData, Pagination, error) {
var r struct {
Data []RawServerData `json:"data"`
Meta Pagination `json:"meta"`
}
res, err := c.get(ctx, "/servers", q{
"page": strconv.Itoa(page),
"per_page": strconv.Itoa(limit),
})
if err != nil {
return nil, r.Meta, err
}
defer res.Body.Close()
if res.HasError() {
return nil, r.Meta, res.Error()
}
if err := res.BindJSON(&r); err != nil {
return nil, r.Meta, err
}
return r.Data, r.Meta, nil
}