2025-05-25 23:32:41 +08:00

142 lines
3.4 KiB
Go

package ratpanelsdk
import (
"bytes"
"crypto/hmac"
"crypto/sha256"
"crypto/tls"
"encoding/hex"
"encoding/json"
"fmt"
"io"
"net/http"
"strings"
"time"
"github.com/go-resty/resty/v2"
)
type Client struct {
client *resty.Client
}
func NewClient(serverUrl string, accessTokenId int32, accessToken string) *Client {
client := resty.New().
SetBaseURL(strings.TrimRight(serverUrl, "/")+"/api").
SetHeader("Accept", "application/json").
SetHeader("Content-Type", "application/json").
SetPreRequestHook(func(c *resty.Client, req *http.Request) error {
var body []byte
var err error
if req.Body != nil {
body, err = io.ReadAll(req.Body)
if err != nil {
return err
}
req.Body = io.NopCloser(bytes.NewReader(body))
}
canonicalPath := req.URL.Path
if !strings.HasPrefix(canonicalPath, "/api") {
index := strings.Index(canonicalPath, "/api")
if index != -1 {
canonicalPath = canonicalPath[index:]
}
}
canonicalRequest := fmt.Sprintf("%s\n%s\n%s\n%s",
req.Method,
canonicalPath,
req.URL.Query().Encode(),
sha256Sum(string(body)))
timestamp := time.Now().Unix()
req.Header.Set("X-Timestamp", fmt.Sprintf("%d", timestamp))
stringToSign := fmt.Sprintf("%s\n%d\n%s",
"HMAC-SHA256",
timestamp,
sha256Sum(canonicalRequest))
signature := hmacSha256(stringToSign, accessToken)
req.Header.Set("Authorization", fmt.Sprintf("HMAC-SHA256 Credential=%d, Signature=%s", accessTokenId, signature))
return nil
})
return &Client{
client: client,
}
}
func (c *Client) WithTimeout(timeout time.Duration) *Client {
c.client.SetTimeout(timeout)
return c
}
func (c *Client) WithTLSConfig(config *tls.Config) *Client {
c.client.SetTLSClientConfig(config)
return c
}
func (c *Client) sendRequest(method string, path string, params interface{}) (*resty.Response, error) {
req := c.client.R()
if strings.EqualFold(method, http.MethodGet) {
qs := make(map[string]string)
if params != nil {
temp := make(map[string]any)
jsonb, _ := json.Marshal(params)
json.Unmarshal(jsonb, &temp)
for k, v := range temp {
if v != nil {
qs[k] = fmt.Sprintf("%v", v)
}
}
}
req = req.SetQueryParams(qs)
} else {
req = req.SetHeader("Content-Type", "application/json").SetBody(params)
}
resp, err := req.Execute(method, path)
if err != nil {
return resp, fmt.Errorf("ratpanel api error: failed to send request: %w", err)
} else if resp.IsError() {
return resp, fmt.Errorf("ratpanel api error: unexpected status code: %d, resp: %s", resp.StatusCode(), resp.Body())
}
return resp, nil
}
func (c *Client) sendRequestWithResult(method string, path string, params interface{}, result BaseResponse) error {
resp, err := c.sendRequest(method, path, params)
if err != nil {
if resp != nil {
json.Unmarshal(resp.Body(), &result)
}
return err
}
if err = json.Unmarshal(resp.Body(), &result); err != nil {
return fmt.Errorf("ratpanel api error: failed to unmarshal response: %w", err)
} else if errmsg := result.GetMessage(); errmsg != "success" {
return fmt.Errorf("ratpanel api error: message='%s'", errmsg)
}
return nil
}
func sha256Sum(str string) string {
sum := sha256.Sum256([]byte(str))
dst := make([]byte, hex.EncodedLen(len(sum)))
hex.Encode(dst, sum[:])
return string(dst)
}
func hmacSha256(data string, secret string) string {
h := hmac.New(sha256.New, []byte(secret))
h.Write([]byte(data))
return hex.EncodeToString(h.Sum(nil))
}