{"record":{"id":"a001dd7d7585e97f","repo":"fish2018/pansou","slug":"s-w-a001dd","errorCode":null,"errorMessage":"[%s] 搜索请求失败: %w","messagePattern":"\\[(.+?)\\] 搜索请求失败: %w","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"plugin/clmao/clmao.go","lineNumber":188,"sourceCode":"\t}\n\n\t// 创建带超时的上下文\n\tctx, cancel := context.WithTimeout(context.Background(), TimeoutSeconds*time.Second)\n\tdefer cancel()\n\n\t// 创建请求\n\treq, err := http.NewRequestWithContext(ctx, \"GET\", searchURL, nil)\n\tif err != nil {\n\t\treturn nil, fmt.Errorf(\"[%s] 创建请求失败: %w\", p.Name(), err)\n\t}\n\n\t// 设置请求头\n\tp.setRequestHeaders(req)\n\n\t// 发送HTTP请求\n\tresp, err := p.doRequestWithRetry(req, client)\n\tif err != nil {\n\t\treturn nil, fmt.Errorf(\"[%s] 搜索请求失败: %w\", p.Name(), err)\n\t}\n\tdefer resp.Body.Close()\n\n\t// 检查状态码\n\tif resp.StatusCode != 200 {\n\t\treturn nil, fmt.Errorf(\"[%s] 请求返回状态码: %d\", p.Name(), resp.StatusCode)\n\t}\n\n\t// 读取响应体内容\n\tbody, err := io.ReadAll(resp.Body)\n\tif err != nil {\n\t\treturn nil, fmt.Errorf(\"[%s] 读取响应失败: %w\", p.Name(), err)\n\t}\n\n\tdecodedHTML := decodeModernPayload(string(body))\n\tif decodedHTML != string(body) {\n\t\tif modernResults := p.parseModernSearchResults(client, decodedHTML); len(modernResults) > 0 {\n\t\t\treturn modernResults, nil","sourceCodeStart":170,"sourceCodeEnd":206,"githubUrl":"https://github.com/fish2018/pansou/blob/beaa56133755a548ebc51b090b3816e2ae044aa6/plugin/clmao/clmao.go#L170-L206","documentation":"ClmaoPlugin.searchPage wraps a failure from p.doRequestWithRetry(req, client), the retrying HTTP call that performs the GET to the clmao search endpoint. The error means every retry attempt failed at the transport level (connection error, timeout, TLS handshake, context deadline). No response body is available, so no status check or parsing happens.","triggerScenarios":"searchPage calls p.doRequestWithRetry(req, client); after MaxRetries attempts (each with linear sleep backoff) no response was obtained — network unreachable, DNS failure, connection reset, or the per-request context (TimeoutSeconds) expired — and the wrapped retry error is re-wrapped with the plugin name.","commonSituations":"The clmao site is down, blocking the client (anti-bot dropping connections), or slow enough that TimeoutSeconds expires on every attempt; local network/proxy problems; DNS resolution failures in containerized environments.","solutions":["Unwrap the chain (this wraps doRequestWithRetry's \"请求失败，已重试%d次\" error, which wraps the last transport error) to see the root cause.","Test connectivity to the site with curl from the same host.","Increase TimeoutSeconds if timeouts dominate, or reduce MaxRetries to fail fast when the site is clearly unreachable.","Update request headers/cookies in setRequestHeaders if the site started rejecting the client.","Add jittered/exponential backoff if the failures correlate with rate limiting."],"exampleFix":"// before\nresp, err := p.doRequestWithRetry(req, client)\nif err != nil {\n    return nil, fmt.Errorf(\"[%s] 搜索请求失败: %w\", p.Name(), err)\n}\n// after\nresp, err := p.doRequestWithRetry(req, client)\nif err != nil {\n    if errors.Is(err, context.DeadlineExceeded) {\n        return nil, fmt.Errorf(\"[%s] 搜索请求超时（TimeoutSeconds=%d）: %w\", p.Name(), TimeoutSeconds, err)\n    }\n    return nil, fmt.Errorf(\"[%s] 搜索请求失败: %w\", p.Name(), err)\n}","handlingStrategy":"retry","validationCode":"func endpointHealthy(client *http.Client, url string) bool {\n    ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)\n    defer cancel()\n    req, _ := http.NewRequestWithContext(ctx, http.MethodHead, url, nil)\n    resp, err := client.Do(req)\n    return err == nil && resp != nil\n}","typeGuard":null,"tryCatchPattern":"results, err := p.searchPage(client, keyword, page)\nif err != nil {\n    var netErr net.Error\n    if errors.As(err, &netErr) && netErr.Timeout() {\n        time.Sleep(backoff)\n        return p.searchPage(client, keyword, page) // single manual retry\n    }\n    return nil, err\n}","preventionTips":["Retry transient failures at the caller level with backoff.","Ensure TimeoutSeconds exceeds worst-case response time of the site.","Check environment connectivity/DNS before bulk operations.","Keep browser-like headers to avoid connection drops from anti-bot layers."],"tags":["network","http","retry-exhausted","timeout"],"backgroundTag":"http-request-failed","analyzedSha":"beaa56133755a548ebc51b090b3816e2ae044aa6","analyzedAt":"2026-09-07T00:31:18.025Z","contentChangedAt":"2026-09-07T00:31:18.025Z","schemaVersion":2},"datasetVersion":"2026-09-15T23:17:13.987Z"}