polemos/pcsdk/commands.go
2023-04-26 14:20:56 +02:00

199 lines
5.9 KiB
Go

package pcsdk
import (
"bytes"
"encoding/json"
"errors"
"fmt"
"io/ioutil"
"net/http"
"net/netip"
"github.com/google/uuid"
"github.com/thefeli73/polemos/state"
)
// ExecuteCommand is the interface that wraps the Execute method.
type ExecuteCommand interface {
Execute(netip.AddrPort) error
}
type response struct {
message string `json:"message"`
}
// ProxyCommandStatus is the command to get the status of a proxy
type ProxyCommandStatus struct {
Command CommandStatus `json:"status"`
// signature Signature
}
// CommandStatus is the status of a proxy
type CommandStatus struct {}
// Execute is the method that executes the Status command
func (c ProxyCommandStatus) Execute(url netip.AddrPort) error {
data, err := json.Marshal(c)
if err != nil {
return errors.New(fmt.Sprintf("could not serialize: %s\n", err))
}
requestURL := fmt.Sprintf("http://%s:%d/command", url.Addr().String(), url.Port())
bodyReader := bytes.NewReader(data)
res, err := http.DefaultClient.Post(requestURL, "application/json", bodyReader)
if err != nil {
return errors.New(fmt.Sprintf("error making http request: %s\n", err))
}
body, err := ioutil.ReadAll(res.Body)
if err != nil {
return errors.New(fmt.Sprintf("error reading response: %s\n", err))
}
if res.StatusCode != 200 {
return errors.New(fmt.Sprintf("error processing command: (%d) %s\n", res.StatusCode, body))
} else {
return nil
}
}
// NewCommandStatus returns a new CommandStatus
func NewCommandStatus() ProxyCommandStatus {
c := CommandStatus{}
return ProxyCommandStatus{c}
}
// ProxyCommandCreate is the command to create a proxy
type ProxyCommandCreate struct {
Command CommandCreate `json:"create"`
// signature Signature
}
// CommandCreate is the struct for the "Create" Command and contains all the info the proxy needs to create a tunnel
type CommandCreate struct {
IncomingPort uint16 `json:"incoming_port"`
DestinationPort uint16 `json:"destination_port"`
DestinationIP netip.Addr `json:"destination_ip"`
Id string `json:"id"`
}
// Execute is the method that executes the Create command on a ProxyCommandCreate
func (c ProxyCommandCreate) Execute(url netip.AddrPort) error {
data, err := json.Marshal(c)
if err != nil {
return errors.New(fmt.Sprintf("could not serialize: %s\n", err))
}
requestURL := fmt.Sprintf("http://%s:%d/command", url.Addr().String(), url.Port())
bodyReader := bytes.NewReader(data)
res, err := http.DefaultClient.Post(requestURL, "application/json", bodyReader)
if err != nil {
return errors.New(fmt.Sprintf("error making http request: %s\n", err))
}
body, err := ioutil.ReadAll(res.Body)
if err != nil {
return errors.New(fmt.Sprintf("error reading response: %s\n", err))
}
if res.StatusCode != 202 {
return errors.New(fmt.Sprintf("error processing command: (%d) %s\n", res.StatusCode, body))
} else {
return nil
}
}
// NewCommandCreate returns a new CommandCreate
func NewCommandCreate(iport uint16, oport uint16, oip netip.Addr, id state.CustomUUID) ProxyCommandCreate {
c := CommandCreate{iport, oport, oip, uuid.UUID.String(uuid.UUID(id))}
return ProxyCommandCreate{c}
}
// ProxyCommandModify is the command to modify a proxy
type ProxyCommandModify struct {
Command CommandModify `json:"modify"`
}
// CommandModify is the struct for the "Modify" Command and contains all the info the proxy needs to modify a tunnel
type CommandModify struct {
DestinationPort uint16 `json:"destination_port"`
DestinationIP netip.Addr `json:"destination_ip"`
Id string `json:"id"`
}
// Execute is the method that executes the Modify command on a ProxyCommandModify
func (c ProxyCommandModify) Execute(url netip.AddrPort) error {
data, err := json.Marshal(c)
if err != nil {
return errors.New(fmt.Sprintf("could not serialize: %s\n", err))
}
requestURL := fmt.Sprintf("http://%s:%d/command", url.Addr().String(), url.Port())
bodyReader := bytes.NewReader(data)
res, err := http.DefaultClient.Post(requestURL, "application/json", bodyReader)
if err != nil {
return errors.New(fmt.Sprintf("error making http request: %s\n", err))
}
body, err := ioutil.ReadAll(res.Body)
if err != nil {
return errors.New(fmt.Sprintf("error reading response: %s\n", err))
}
if res.StatusCode != 202 {
return errors.New(fmt.Sprintf("error processing command: (%d) %s\n", res.StatusCode, body))
} else {
return nil
}
}
// NewCommandModify returns a new CommandModify
func NewCommandModify(oport uint16, oip netip.Addr, id state.CustomUUID) ProxyCommandModify {
c := CommandModify{oport, oip, uuid.UUID.String(uuid.UUID(id))}
return ProxyCommandModify{c}
}
// ProxyCommandDelete is the command to delete a proxy
type ProxyCommandDelete struct {
Command CommandDelete `json:"delete"`
}
// CommandDelete is the struct for the "Delete" Command and contains the id of the tunnel to delete
type CommandDelete struct {
Id string `json:"id"`
}
// Execute is the method that executes the Delete command on a ProxyCommandDelete
func (c ProxyCommandDelete) Execute(url netip.AddrPort) error {
data, err := json.Marshal(c)
if err != nil {
return errors.New(fmt.Sprintf("could not serialize: %s\n", err))
}
requestURL := fmt.Sprintf("http://%s:%d/command", url.Addr().String(), url.Port())
bodyReader := bytes.NewReader(data)
res, err := http.DefaultClient.Post(requestURL, "application/json", bodyReader)
if err != nil {
return errors.New(fmt.Sprintf("error making http request: %s\n", err))
}
body, err := ioutil.ReadAll(res.Body)
if err != nil {
return errors.New(fmt.Sprintf("error reading response: %s\n", err))
}
if res.StatusCode != 202 {
return errors.New(fmt.Sprintf("error processing command: (%d) %s\n", res.StatusCode, body))
} else {
return nil
}
}
// NewCommandDelete returns a new CommandDelete
func NewCommandDelete(id state.CustomUUID) ProxyCommandDelete {
c := CommandDelete{uuid.UUID.String(uuid.UUID(id))}
return ProxyCommandDelete{c}
}