package installer import ( "encoding/json" "github.com/asaskevich/govalidator" "github.com/buger/jsonparser" "github.com/pkg/errors" "github.com/pterodactyl/wings/config" "github.com/pterodactyl/wings/server" "go.uber.org/zap" ) type Installer struct { server *server.Server } // Validates the received data to ensure that all of the required fields // have been passed along in the request. This should be manually run before // calling Execute(). func New(data []byte) (*Installer, error) { if !govalidator.IsUUIDv4(getString(data, "uuid")) { return nil, errors.New("uuid provided was not in a valid format") } if !govalidator.IsUUIDv4(getString(data, "service", "egg")) { return nil, errors.New("service egg provided was not in a valid format") } s := &server.Server{ Uuid: getString(data, "uuid"), Suspended: false, State: server.ProcessOfflineState, Invocation: getString(data, "invocation"), EnvVars: make(map[string]string), Build: server.BuildSettings{ MemoryLimit: getInt(data, "build", "memory"), Swap: getInt(data, "build", "swap"), IoWeight: uint16(getInt(data, "build", "io")), CpuLimit: getInt(data, "build", "cpu"), DiskSpace: getInt(data, "build", "disk"), }, Allocations: server.Allocations{ Mappings: make(map[string][]int), }, } s.Init() s.Allocations.DefaultMapping.Ip = getString(data, "allocations", "default", "ip") s.Allocations.DefaultMapping.Port = int(getInt(data, "allocations", "default", "port")) // Unmarshal the environment variables from the request into the server struct. if b, _, _, err := jsonparser.Get(data, "environment"); err != nil { return nil, errors.WithStack(err) } else { s.EnvVars = make(map[string]string) if err := json.Unmarshal(b, &s.EnvVars); err != nil { return nil, errors.WithStack(err) } } // Unmarshal the allocation mappings from the request into the server struct. if b, _, _, err := jsonparser.Get(data, "allocations", "mappings"); err != nil { return nil, errors.WithStack(err) } else { s.Allocations.Mappings = make(map[string][]int) if err := json.Unmarshal(b, &s.Allocations.Mappings); err != nil { return nil, errors.WithStack(err) } } s.Container.Image = getString(data, "container", "image") b, err := s.WriteConfigurationToDisk() if err != nil { return nil, err } // Destroy the temporary server instance. s = nil // Create a new server instance using the configuration we wrote to the disk // so that everything gets instantiated correctly on the struct. s2, err := server.FromConfiguration(b, &config.Get().System) return &Installer{ server: s2, }, err } // Returns the UUID associated with this installer instance. func (i *Installer) Uuid() string { return i.server.Uuid } // Return the server instance. func (i *Installer) Server() *server.Server { return i.server } // Executes the installer process, creating the server and running through the // associated installation process based on the parameters passed through for // the server instance. func (i *Installer) Execute() { zap.S().Debugw("creating required environment for server instance", zap.String("server", i.Uuid())) if err := i.server.Environment.Create(); err != nil { zap.S().Errorw("failed to create environment for server", zap.String("server", i.Uuid()), zap.Error(err)) return } zap.S().Debugw("created environment for server during install process", zap.String("server", i.Uuid())) } // Returns a string value from the JSON data provided. func getString(data []byte, key ...string) string { value, _ := jsonparser.GetString(data, key...) return value } // Returns an int value from the JSON data provided. func getInt(data []byte, key ...string) int64 { value, _ := jsonparser.GetInt(data, key...) return value }