fish2018/pansou · error

[ ] JSON解析失败

Error message

[%s] JSON解析失败: %w

What it means

After reading the body, searchImpl unmarshals it into the searchResponse struct with json.Unmarshal; failure produces this wrapped error. It means the 200 response body was not the expected JSON shape — typically an HTML anti-bot/interstitial page or an envelope whose schema changed.

Solutions

1. Log the wrapped %w error and a snippet of body to see what was actually returned
2. Check whether the body is HTML (WAF page) and update Origin/Referer/User-Agent or add cookie handling to pass the challenge
3. Diff the live API JSON against the searchResponse struct and update field names/types/json tags
4. Use json.Decoder and tolerate schema drift by unmarshaling into json.RawMessage for volatile fields

Example fix

// before
var apiResp searchResponse
if err := json.Unmarshal(body, &apiResp); err != nil {
    return nil, fmt.Errorf("[%s] JSON解析失败: %w", p.Name(), err)
}
// after
var apiResp searchResponse
if err := json.Unmarshal(body, &apiResp); err != nil {
    return nil, fmt.Errorf("[%s] JSON解析失败(响应: %.200s): %w", p.Name(), string(body), err)
}

trimmed := bytes.TrimSpace(body)
if len(trimmed) == 0 || (trimmed[0] != '{' && trimmed[0] != '[') {
    // not JSON (likely an HTML challenge page); skip unmarshal
    return nil, fmt.Errorf("non-JSON response: %.100s", string(trimmed))
}

func looksLikeJSON(b []byte) bool {
    t := bytes.TrimSpace(b)
    return len(t) > 0 && (t[0] == '{' || t[0] == '[')
}

if err != nil {
    var synErr *json.SyntaxError
    if errors.As(err, &synErr) {
        log.Printf("bad JSON at offset %d, body head: %.200s", synErr.Offset, string(body))
    }
    return nil, err
}

When it happens

Trigger: Response is valid HTTP 200 but not parseable into searchResponse: HTML challenge page, plain-text error, empty body, or API response fields renamed/retyped after a site update so types no longer match.

Common situations: WAF serves a 200 'checking your browser' page; the API updated its JSON envelope (field renames, data changed from array to object); a CDN returns an HTML error page with status 200.

Understand the failure class

Background: "failed to unmarshal" / json.Unmarshal errors: why parsing a response into a Go struct fails and how to fix it — this error's family across 23 libraries.

Related errors

• [ ] 解析搜索响应失败
• [ ] 解析详情响应失败
• 下载链接JSON解析失败
• [ ] API JSON 解析失败
• 解析 Anubis 验证题目失败

AI-assisted analysis of fish2018/pansou@beaa561337 (2026-09-07). Data as JSON: /api/errors/18bd254a0a8f361a. Report an issue: GitHub.

Appendix: source

Thrown at plugin/meitizy/meitizy.go:191

	if err != nil {
		return nil, fmt.Errorf("[%s] 搜索请求失败: %w", p.Name(), err)
	}
	defer resp.Body.Close()

	if resp.StatusCode != 200 {
		return nil, fmt.Errorf("[%s] 搜索请求HTTP状态错误: %d", p.Name(), resp.StatusCode)
	}

	// 读取响应体
	body, err := io.ReadAll(resp.Body)
	if err != nil {
		return nil, fmt.Errorf("[%s] 读取响应体失败: %w", p.Name(), err)
	}

	// 解析JSON响应
	var apiResp searchResponse
	if err := json.Unmarshal(body, &apiResp); err != nil {
		return nil, fmt.Errorf("[%s] JSON解析失败: %w", p.Name(), err)
	}

	// 转换为标准格式
	results := p.convertToSearchResults(apiResp.Data)

	// 关键词过滤（标准网盘插件需要过滤）
	filteredResults := plugin.FilterResultsByKeyword(results, keyword)

	return filteredResults, nil
}

// convertToSearchResults 将API响应转换为标准SearchResult格式
func (p *MeitizyPlugin) convertToSearchResults(items []apiItem) []model.SearchResult {
	results := make([]model.SearchResult, 0, len(items))

	for _, item := range items {
		// Skip malformed or empty links returned by the API.
		linkURL := strings.TrimSpace(item.Link)

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