98 lines
2.5 KiB
Go
98 lines
2.5 KiB
Go
package sftp
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import (
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"github.com/apex/log"
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"github.com/pkg/errors"
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"github.com/pterodactyl/wings/api"
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"github.com/pterodactyl/wings/config"
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"github.com/pterodactyl/wings/server"
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)
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var noMatchingServerError = errors.New("no matching server with that UUID was found")
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func Initialize(config config.SystemConfiguration) error {
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s := &Server{
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User: SftpUser{
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Uid: config.User.Uid,
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Gid: config.User.Gid,
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},
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Settings: Settings{
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BasePath: config.Data,
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ReadOnly: config.Sftp.ReadOnly,
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BindAddress: config.Sftp.Address,
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BindPort: config.Sftp.Port,
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},
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CredentialValidator: validateCredentials,
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PathValidator: validatePath,
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DiskSpaceValidator: validateDiskSpace,
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}
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if err := New(s); err != nil {
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return errors.WithStack(err)
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}
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// Initialize the SFTP server in a background thread since this is
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// a long running operation.
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go func(s *Server) {
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if err := s.Initialize(); err != nil {
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log.WithField("subsystem", "sftp").WithField("error", errors.WithStack(err)).Error("failed to initialize SFTP subsystem")
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}
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}(s)
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return nil
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}
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func validatePath(fs FileSystem, p string) (string, error) {
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s := server.GetServers().Find(func(server *server.Server) bool {
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return server.Id() == fs.UUID
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})
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if s == nil {
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return "", noMatchingServerError
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}
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return s.Filesystem.SafePath(p)
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}
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func validateDiskSpace(fs FileSystem) bool {
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s := server.GetServers().Find(func(server *server.Server) bool {
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return server.Id() == fs.UUID
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})
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if s == nil {
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return false
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}
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return s.Filesystem.HasSpaceAvailable()
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}
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// Validates a set of credentials for a SFTP login aganist Pterodactyl Panel and returns
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// the server's UUID if the credentials were valid.
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func validateCredentials(c api.SftpAuthRequest) (*api.SftpAuthResponse, error) {
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f := log.Fields{"subsystem": "sftp", "username": c.User, "ip": c.IP}
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log.WithFields(f).Debug("validating credentials for SFTP connection")
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resp, err := api.NewRequester().ValidateSftpCredentials(c)
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if err != nil {
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if api.IsInvalidCredentialsError(err) {
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log.WithFields(f).Warn("failed to validate user credentials (invalid username or password)")
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} else {
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log.WithFields(f).Error("encountered an error while trying to validate user credentials")
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}
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return resp, err
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}
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s := server.GetServers().Find(func(server *server.Server) bool {
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return server.Id() == resp.Server
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})
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if s == nil {
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return resp, noMatchingServerError
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}
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s.Log().WithFields(f).Debug("credentials successfully validated and matched user to server instance")
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return resp, err
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}
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