MiFaZhan
117 lines
3.9 KiB
Go
117 lines
3.9 KiB
Go
package upstreamimpl
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import (
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"context"
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"crypto/md5"
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"encoding/hex"
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"encoding/json"
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"fmt"
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"io"
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"net/http"
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"strings"
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"time"
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sharedtoken "git.5iot.com/iotlcm-public/iotlcm-upstream-chan/internal/token"
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)
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type QianxunTokenConfig struct {
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BaseURL string
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Path string
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OperatorID string
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AppID string
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TokenType string
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Key string
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Timeout time.Duration
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}
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type QianxunTokenProvider struct {
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baseURL, path, operatorID, appID, tokenType, key string
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client *http.Client
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}
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type qianxunTokenResponse struct {
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Code int `json:"code"`
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Msg string `json:"msg"`
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Data struct {
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Token string `json:"token"`
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ExpireDate int64 `json:"expireDate"`
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} `json:"data"`
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}
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func NewQianxunTokenProvider(config QianxunTokenConfig) *QianxunTokenProvider {
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timeout := config.Timeout
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if timeout <= 0 {
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timeout = defaultUpstreamHTTPTimeout
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}
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return &QianxunTokenProvider{
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baseURL: strings.TrimRight(strings.TrimSpace(config.BaseURL), "/"),
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path: normalizeProviderPath(config.Path, "/"), operatorID: strings.TrimSpace(config.OperatorID),
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appID: strings.TrimSpace(config.AppID), tokenType: strings.TrimSpace(config.TokenType), key: config.Key,
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client: &http.Client{Timeout: timeout},
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}
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}
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func qianxunSharedSign(operatorID, appID, key string) string {
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sum := md5.Sum([]byte(operatorID + appID + key))
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return hex.EncodeToString(sum[:])
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}
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func (p *QianxunTokenProvider) Fetch(ctx context.Context) (sharedtoken.OneLinkToken, error) {
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if p == nil || p.client == nil {
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return sharedtoken.OneLinkToken{}, fmt.Errorf("qianxun token provider is not initialized")
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}
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if p.baseURL == "" || p.operatorID == "" || p.appID == "" || p.tokenType == "" || p.key == "" {
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return sharedtoken.OneLinkToken{}, fmt.Errorf("qianxun token endpoint and credentials are required")
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}
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payload := map[string]string{"operatorId": p.operatorID, "appId": p.appID, "tokenType": p.tokenType, "sign": qianxunSharedSign(p.operatorID, p.appID, p.key)}
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body, err := json.Marshal(payload)
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if err != nil {
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return sharedtoken.OneLinkToken{}, fmt.Errorf("encode qianxun token request: %w", err)
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}
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req, err := http.NewRequestWithContext(ctx, http.MethodPost, joinProviderURL(p.baseURL, p.path), strings.NewReader(string(body)))
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if err != nil {
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return sharedtoken.OneLinkToken{}, fmt.Errorf("create qianxun token request: %w", err)
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}
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req.Header.Set("Content-Type", "application/json")
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req.Header.Set("Accept", "application/json")
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resp, err := p.client.Do(req)
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if err != nil {
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return sharedtoken.OneLinkToken{}, fmt.Errorf("request qianxun token: %w", err)
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}
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defer resp.Body.Close()
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responseBody, err := io.ReadAll(resp.Body)
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if err != nil {
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return sharedtoken.OneLinkToken{}, fmt.Errorf("read qianxun token response: %w", err)
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}
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if resp.StatusCode < 200 || resp.StatusCode >= 300 {
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return sharedtoken.OneLinkToken{}, fmt.Errorf("qianxun token HTTP status %d", resp.StatusCode)
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}
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var output qianxunTokenResponse
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if err := json.Unmarshal(responseBody, &output); err != nil {
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return sharedtoken.OneLinkToken{}, fmt.Errorf("decode qianxun token response: %w", err)
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}
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if output.Code != 0 {
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return sharedtoken.OneLinkToken{}, fmt.Errorf("qianxun token failed: code=%d msg=%s", output.Code, output.Msg)
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}
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value := strings.TrimSpace(output.Data.Token)
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if value == "" {
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return sharedtoken.OneLinkToken{}, fmt.Errorf("qianxun token is empty")
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}
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now := time.Now()
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var expiresAt time.Time
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if output.Data.ExpireDate > 0 {
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expiresAt = now.Add(time.Duration(output.Data.ExpireDate) * time.Second)
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}
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return sharedtoken.OneLinkToken{Value: value, CreatedAt: now, ExpiresAt: expiresAt}, nil
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}
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func (p *QianxunTokenProvider) FetchToken(ctx context.Context, _ string) (sharedtoken.OneLinkToken, error) {
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return p.Fetch(ctx)
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}
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type qianxunFetcher struct{ provider *QianxunTokenProvider }
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func (f qianxunFetcher) FetchToken(ctx context.Context, _ string) (sharedtoken.OneLinkToken, error) {
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return f.provider.Fetch(ctx)
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}
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