chore: move '/internal/pkg' to '/pkg'

pkg/sdk3rd/btpanel/client.go

@@ -0,0 +1,159 @@
+package btpanel
+
+import (
+	"crypto/md5"
+	"crypto/tls"
+	"encoding/hex"
+	"encoding/json"
+	"fmt"
+	"net/url"
+	"reflect"
+	"strings"
+	"time"
+
+	"github.com/go-resty/resty/v2"
+)
+
+type Client struct {
+	apiKey string
+
+	client *resty.Client
+}
+
+func NewClient(serverUrl, apiKey string) (*Client, error) {
+	if serverUrl == "" {
+		return nil, fmt.Errorf("sdkerr: unset serverUrl")
+	}
+	if _, err := url.Parse(serverUrl); err != nil {
+		return nil, fmt.Errorf("sdkerr: invalid serverUrl: %w", err)
+	}
+	if apiKey == "" {
+		return nil, fmt.Errorf("sdkerr: unset apiKey")
+	}
+
+	client := resty.New().
+		SetBaseURL(strings.TrimRight(serverUrl, "/")).
+		SetHeader("Accept", "application/json").
+		SetHeader("Content-Type", "application/x-www-form-urlencoded").
+		SetHeader("User-Agent", "certimate")
+
+	return &Client{
+		apiKey: apiKey,
+		client: client,
+	}, nil
+}
+
+func (c *Client) SetTimeout(timeout time.Duration) *Client {
+	c.client.SetTimeout(timeout)
+	return c
+}
+
+func (c *Client) SetTLSConfig(config *tls.Config) *Client {
+	c.client.SetTLSClientConfig(config)
+	return c
+}
+
+func (c *Client) newRequest(method string, path string, params any) (*resty.Request, error) {
+	if method == "" {
+		return nil, fmt.Errorf("sdkerr: unset method")
+	}
+	if path == "" {
+		return nil, fmt.Errorf("sdkerr: unset path")
+	}
+
+	data := 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 {
+				continue
+			}
+
+			switch reflect.Indirect(reflect.ValueOf(v)).Kind() {
+			case reflect.String:
+				data[k] = v.(string)
+
+			case reflect.Bool, reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Float32, reflect.Float64:
+				data[k] = fmt.Sprintf("%v", v)
+
+			default:
+				if t, ok := v.(time.Time); ok {
+					data[k] = t.Format(time.RFC3339)
+				} else {
+					jsonb, _ := json.Marshal(v)
+					data[k] = string(jsonb)
+				}
+			}
+		}
+	}
+
+	timestamp := time.Now().Unix()
+	data["request_time"] = fmt.Sprintf("%d", timestamp)
+	data["request_token"] = generateSignature(fmt.Sprintf("%d", timestamp), c.apiKey)
+
+	req := c.client.R()
+	req.Method = method
+	req.URL = path
+	req.SetFormData(data)
+	return req, nil
+}
+
+func (c *Client) doRequest(req *resty.Request) (*resty.Response, error) {
+	if req == nil {
+		return nil, fmt.Errorf("sdkerr: nil request")
+	}
+
+	// WARN:
+	//   PLEASE DO NOT USE `req.SetBody` or `req.SetFormData` HERE! USE `newRequest` INSTEAD.
+	//   PLEASE DO NOT USE `req.SetResult` or `req.SetError` HERE! USE `doRequestWithResult` INSTEAD.
+
+	resp, err := req.Send()
+	if err != nil {
+		return resp, fmt.Errorf("sdkerr: failed to send request: %w", err)
+	} else if resp.IsError() {
+		return resp, fmt.Errorf("sdkerr: unexpected status code: %d, resp: %s", resp.StatusCode(), resp.String())
+	}
+
+	return resp, nil
+}
+
+func (c *Client) doRequestWithResult(req *resty.Request, res apiResponse) (*resty.Response, error) {
+	if req == nil {
+		return nil, fmt.Errorf("sdkerr: nil request")
+	}
+
+	resp, err := c.doRequest(req)
+	if err != nil {
+		if resp != nil {
+			json.Unmarshal(resp.Body(), &res)
+		}
+		return resp, err
+	}
+
+	if len(resp.Body()) != 0 {
+		if err := json.Unmarshal(resp.Body(), &res); err != nil {
+			return resp, fmt.Errorf("sdkerr: failed to unmarshal response: %w", err)
+		} else {
+			if tstatus := res.GetStatus(); tstatus != nil && !*tstatus {
+				if res.GetMessage() == nil {
+					return resp, fmt.Errorf("sdkerr: api error: unknown error")
+				} else {
+					return resp, fmt.Errorf("sdkerr: api error: message='%s'", *res.GetMessage())
+				}
+			}
+		}
+	}
+
+	return resp, nil
+}
+
+func generateSignature(timestamp string, apiKey string) string {
+	keyMd5 := md5.Sum([]byte(apiKey))
+	keyMd5Hex := strings.ToLower(hex.EncodeToString(keyMd5[:]))
+
+	signMd5 := md5.Sum([]byte(timestamp + keyMd5Hex))
+	signMd5Hex := strings.ToLower(hex.EncodeToString(signMd5[:]))
+	return signMd5Hex
+}