84 lines
2.0 KiB
Go
84 lines
2.0 KiB
Go
package user
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import (
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"encoding/base64"
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"encoding/json"
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"encoding/pem"
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"errors"
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"fmt"
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"io"
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"net/http"
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"time"
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pk "github.com/Tnze/go-mc/net/packet"
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)
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var ServicesURL = "https://api.minecraftservices.com"
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var client = http.DefaultClient
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type KeyPairResp struct {
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KeyPair struct {
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PrivateKey string `json:"privateKey"`
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PublicKey string `json:"publicKey"`
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} `json:"keyPair"`
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PublicKeySignature string `json:"publicKeySignature"`
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ExpiresAt time.Time `json:"expiresAt"`
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RefreshedAfter time.Time `json:"refreshedAfter"`
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}
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func (k KeyPairResp) WriteTo(w io.Writer) (int64, error) {
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block, _ := pem.Decode([]byte(k.KeyPair.PublicKey))
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if block == nil {
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return 0, errors.New("pem decode error: no data is found")
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}
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signature, err := base64.StdEncoding.DecodeString(k.PublicKeySignature)
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if err != nil {
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return 0, err
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}
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return pk.Tuple{
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pk.Long(k.ExpiresAt.UnixMilli()),
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pk.ByteArray(block.Bytes),
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pk.ByteArray(signature),
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}.WriteTo(w)
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}
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func GetOrFetchKeyPair(accessToken string) (KeyPairResp, error) {
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return fetchKeyPair(accessToken) // TODO: cache
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}
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func fetchKeyPair(accessToken string) (KeyPairResp, error) {
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var keyPairResp KeyPairResp
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err := post("/player/certificates", accessToken, &keyPairResp)
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return keyPairResp, err
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}
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func post(endpoint string, accessToken string, resp interface{}) error {
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rowResp, err := rawPost(endpoint, accessToken)
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if err != nil {
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return fmt.Errorf("request fail: %v", err)
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}
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defer rowResp.Body.Close()
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err = json.NewDecoder(rowResp.Body).Decode(resp)
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if err != nil {
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return fmt.Errorf("parse resp fail: %v", err)
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}
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return nil
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}
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func rawPost(endpoint string, accessToken string) (*http.Response, error) {
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PostRequest, err := http.NewRequest(
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http.MethodPost,
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ServicesURL+endpoint, nil)
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if err != nil {
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return nil, fmt.Errorf("make request error: %v", err)
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}
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PostRequest.Header.Set("Authorization", "Bearer "+accessToken)
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PostRequest.Header.Set("Content-Type", "application/json; charset=utf-8")
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// Do
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return client.Do(PostRequest)
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}
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