fish2018/pansou · error

API返回非200状态码

Error message

API返回非200状态码: %d

What it means

pan666's fetchPage returns this when the server responds with a status code other than 200 on the final retry attempt. Earlier non-200 responses trigger a 500ms sleep and retry; once retries are exhausted the offending status code is reported. Note the response body — which may contain the API's error details — is discarded.

Solutions

1. Read a snippet of the response body before giving up — it usually names the block reason
2. Slow down request rate / add jitter if 429
3. Stop rotating X-Forwarded-For if the API bans on inconsistent forwarded IPs
4. Verify the BaseURL endpoint is still valid (404 case) and update it

Example fix

// before
if resp.StatusCode != http.StatusOK {
    if i == p.retries { return nil, false, fmt.Errorf("API返回非200状态码: %d", resp.StatusCode) }
// after
if resp.StatusCode != http.StatusOK {
    b, _ := io.ReadAll(io.LimitReader(resp.Body, 256))
    if i == p.retries { return nil, false, fmt.Errorf("API返回非200状态码: %d body=%.256s", resp.StatusCode, b) }

if err != nil {
    if strings.Contains(err.Error(), "429") {
        select {
        case <-time.After(rateLimitCooldown):
        case <-ctx.Done():
            return ctx.Err()
        }
        return retry()
    }
    return err
}

When it happens

Trigger: client.Do succeeds and resp.StatusCode != http.StatusOK on all attempts: 403 (WAF/ban), 429 (rate limit), 500/502/503 (upstream fault), or 404 after an endpoint change.

Common situations: Rate limiting due to rapid searches; IP banned because of the randomized X-Forwarded-For/UA headers; pan666 API endpoint moved returning 404; origin server outage behind a gateway.

Related errors

• HTTP状态码
• [ ] 请求返回状态码
• HTTP 状态码
• 重试 次后失败
• 状态码

AI-assisted analysis of fish2018/pansou@beaa561337 (2026-09-07). Data as JSON: /api/errors/dfc9cd1816e7ac90. Report an issue: GitHub.

Appendix: source

Thrown at plugin/pan666/pan666.go:228

			continue
		}
		
		defer resp.Body.Close()
		
		// 读取响应体
		responseBody, err = io.ReadAll(resp.Body)
		if err != nil {
			if i == p.retries {
				return nil, false, fmt.Errorf("读取响应失败: %w", err)
			}
			time.Sleep(500 * time.Millisecond)
			continue
		}
		
		// 状态码检查
		if resp.StatusCode != http.StatusOK {
			if i == p.retries {
				return nil, false, fmt.Errorf("API返回非200状态码: %d", resp.StatusCode)
			}
			time.Sleep(500 * time.Millisecond)
			continue
		}
		
		// 请求成功，跳出重试循环
		break
	}
	
	// 解析响应
	var apiResp Pan666Response
	if err := json.Unmarshal(responseBody, &apiResp); err != nil {
		return nil, false, fmt.Errorf("解析响应失败: %w", err)
	}
	
	// 处理结果
	results := make([]model.SearchResult, 0, len(apiResp.Data))
	postMap := make(map[string]Pan666Post)

View on GitHub (pinned to beaa561337)