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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,105 +1,105 @@ | ||
| package vsp | ||
|
|
||
| import ( | ||
| "context" | ||
| "crypto/ed25519" | ||
| "encoding/base64" | ||
| "encoding/json" | ||
| "fmt" | ||
| "net/http" | ||
|
|
||
| "github.com/crypto-power/cryptopower/libwallet/utils" | ||
| "github.com/decred/dcrd/txscript/v4/stdaddr" | ||
| ) | ||
|
|
||
| type client struct { | ||
| http.Client | ||
| url string | ||
| pub []byte | ||
| sign func(context.Context, string, stdaddr.Address) ([]byte, error) | ||
| } | ||
|
|
||
| type signer interface { | ||
| SignMessage(ctx context.Context, message string, address stdaddr.Address) ([]byte, error) | ||
| } | ||
|
|
||
| func newClient(url string, pub []byte, s signer) *client { | ||
| return &client{url: url, pub: pub, sign: s.SignMessage} | ||
| } | ||
|
|
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| type BadRequestError struct { | ||
| HTTPStatus int `json:"-"` | ||
| Code int `json:"code"` | ||
| Message string `json:"message"` | ||
| } | ||
|
|
||
| func (e *BadRequestError) Error() string { return e.Message } | ||
|
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| func (c *client) post(ctx context.Context, path string, addr stdaddr.Address, response interface{}, body []byte) error { | ||
| return c.do(ctx, http.MethodPost, path, addr, response, body) | ||
| } | ||
|
|
||
| func (c *client) get(ctx context.Context, path string, resp interface{}) error { | ||
| return c.do(ctx, http.MethodGet, path, nil, resp, nil) | ||
| } | ||
|
|
||
| func (c *client) do(ctx context.Context, method, path string, addr stdaddr.Address, response interface{}, body []byte) error { | ||
| var err error | ||
| var sig []byte | ||
| reqConf := &utils.ReqConfig{ | ||
| Method: method, | ||
| HTTPURL: c.url + path, | ||
| IsRetByte: true, | ||
| Headers: make(http.Header), | ||
| } | ||
|
|
||
| if method == http.MethodPost { | ||
| sig, err = c.sign(ctx, string(body), addr) | ||
| if err != nil { | ||
| return fmt.Errorf("sign request: %w", err) | ||
| } | ||
| reqConf.Payload = body | ||
| } | ||
|
|
||
| // Add cookies. | ||
| if sig != nil { | ||
| reqConf.Headers.Add("VSP-Client-Signature", base64.StdEncoding.EncodeToString(sig)) | ||
| } | ||
|
|
||
| respBytes := []byte{} | ||
| reply, err := utils.HTTPRequest(reqConf, &respBytes) | ||
| if err != nil && reply == nil { | ||
| // Status code errors are handled below. | ||
| return err | ||
| } | ||
|
|
||
| status := reply.StatusCode | ||
| is200 := status == 200 | ||
| is4xx := status >= 400 && status <= 499 | ||
| if !(is200 || is4xx) { | ||
| return err | ||
| } | ||
|
|
||
| if err = json.Unmarshal(respBytes, response); err != nil { | ||
| return fmt.Errorf("could not pack response data: %w", err) | ||
| } | ||
|
|
||
| sigBase64 := reply.Header.Get("VSP-Server-Signature") | ||
| sig, err = base64.StdEncoding.DecodeString(sigBase64) | ||
| if err != nil { | ||
| return fmt.Errorf("cannot authenticate server: %w", err) | ||
| } | ||
|
|
||
| if !ed25519.Verify(c.pub, respBytes, sig) { | ||
| return fmt.Errorf("cannot authenticate server: invalid signature") | ||
| } | ||
|
|
||
| var apiError *BadRequestError | ||
| if is4xx { | ||
| apiError = new(BadRequestError) | ||
| apiError.HTTPStatus = status | ||
| return apiError | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
| // import ( | ||
| // "context" | ||
| // "crypto/ed25519" | ||
| // "encoding/base64" | ||
| // "encoding/json" | ||
| // "fmt" | ||
| // "net/http" | ||
|
|
||
| // "github.com/crypto-power/cryptopower/libwallet/utils" | ||
| // "github.com/decred/dcrd/txscript/v4/stdaddr" | ||
| // ) | ||
|
|
||
| // type client struct { | ||
| // http.Client | ||
| // url string | ||
| // pub []byte | ||
| // sign func(context.Context, string, stdaddr.Address) ([]byte, error) | ||
| // } | ||
|
|
||
| // type signer interface { | ||
| // SignMessage(ctx context.Context, message string, address stdaddr.Address) ([]byte, error) | ||
| // } | ||
|
|
||
| // func newClient(url string, pub []byte, s signer) *client { | ||
| // return &client{url: url, pub: pub, sign: s.SignMessage} | ||
| // } | ||
|
|
||
| // type BadRequestError struct { | ||
| // HTTPStatus int `json:"-"` | ||
| // Code int `json:"code"` | ||
| // Message string `json:"message"` | ||
| // } | ||
|
|
||
| // func (e *BadRequestError) Error() string { return e.Message } | ||
|
|
||
| // func (c *client) post(ctx context.Context, path string, addr stdaddr.Address, response interface{}, body []byte) error { | ||
| // return c.do(ctx, http.MethodPost, path, addr, response, body) | ||
| // } | ||
|
|
||
| // func (c *client) get(ctx context.Context, path string, resp interface{}) error { | ||
| // return c.do(ctx, http.MethodGet, path, nil, resp, nil) | ||
| // } | ||
|
|
||
| // func (c *client) do(ctx context.Context, method, path string, addr stdaddr.Address, response interface{}, body []byte) error { | ||
| // var err error | ||
| // var sig []byte | ||
| // reqConf := &utils.ReqConfig{ | ||
| // Method: method, | ||
| // HTTPURL: c.url + path, | ||
| // IsRetByte: true, | ||
| // Headers: make(http.Header), | ||
| // } | ||
|
|
||
| // if method == http.MethodPost { | ||
| // sig, err = c.sign(ctx, string(body), addr) | ||
| // if err != nil { | ||
| // return fmt.Errorf("sign request: %w", err) | ||
| // } | ||
| // reqConf.Payload = body | ||
| // } | ||
|
|
||
| // // Add cookies. | ||
| // if sig != nil { | ||
| // reqConf.Headers.Add("VSP-Client-Signature", base64.StdEncoding.EncodeToString(sig)) | ||
| // } | ||
|
|
||
| // respBytes := []byte{} | ||
| // reply, err := utils.HTTPRequest(reqConf, &respBytes) | ||
| // if err != nil && reply == nil { | ||
| // // Status code errors are handled below. | ||
| // return err | ||
| // } | ||
|
|
||
| // status := reply.StatusCode | ||
| // is200 := status == 200 | ||
| // is4xx := status >= 400 && status <= 499 | ||
| // if !(is200 || is4xx) { | ||
| // return err | ||
| // } | ||
|
|
||
| // if err = json.Unmarshal(respBytes, response); err != nil { | ||
| // return fmt.Errorf("could not pack response data: %w", err) | ||
| // } | ||
|
|
||
| // sigBase64 := reply.Header.Get("VSP-Server-Signature") | ||
| // sig, err = base64.StdEncoding.DecodeString(sigBase64) | ||
| // if err != nil { | ||
| // return fmt.Errorf("cannot authenticate server: %w", err) | ||
| // } | ||
|
|
||
| // if !ed25519.Verify(c.pub, respBytes, sig) { | ||
| // return fmt.Errorf("cannot authenticate server: invalid signature") | ||
| // } | ||
|
|
||
| // var apiError *BadRequestError | ||
| // if is4xx { | ||
| // apiError = new(BadRequestError) | ||
| // apiError.HTTPStatus = status | ||
| // return apiError | ||
| // } | ||
|
|
||
| // return nil | ||
| // } |
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