fadd

internal/shared/fadada/debug_log.go

@@ -0,0 +1,140 @@
+package fadada
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"strings"
+	"sync"
+	"time"
+)
+
+// debug 日志：将每次法大大 OpenAPI 调用的 cURL 命令 + 响应落盘到 logs/fadada/<date>/fadada.log
+// 用于排查 /sign-task/create-with-template 等接口的实际请求/响应（如免验证签不生效）。
+// 敏感字段（AppSecret）不会出现在日志里；AccessToken / Sign 会以明文写入以便复现。
+
+const (
+	debugLogDir   = "logs/fadada"
+	debugLogFile  = "fadada.log"
+	debugMaxBytes = 10 * 1024 * 1024 // 单文件 10MB 后截断覆盖（轮转保持简单）
+)
+
+var (
+	debugLogMu      sync.Mutex
+	debugLogFilePtr *os.File
+	debugLogDate    string
+	debugLogSize    int64
+)
+
+// writeDebugLog 把一次 API 调用的请求与响应追加到当日日志文件。
+// 调用方需保证 headers / body / respBody 不包含 AppSecret（法大大签名里只有时间戳参与，secret 本身不出现在 header/body 中）。
+func writeDebugLog(method, fullURL string, headers map[string]string, body string, httpStatus int, respBody string, requestID string) {
+	if strings.TrimSpace(fullURL) == "" {
+		return
+	}
+
+	entry := buildDebugEntry(method, fullURL, headers, body, httpStatus, respBody, requestID)
+
+	debugLogMu.Lock()
+	defer debugLogMu.Unlock()
+
+	if err := openDebugLogFileLocked(); err != nil {
+		// 日志失败不影响业务
+		return
+	}
+
+	n, _ := debugLogFilePtr.WriteString(entry)
+	debugLogSize += int64(n)
+	if debugLogSize >= debugMaxBytes {
+		_ = debugLogFilePtr.Close()
+		debugLogFilePtr = nil
+		debugLogSize = 0
+	}
+}
+
+func openDebugLogFileLocked() error {
+	today := time.Now().Format("2006-01-02")
+	if debugLogFilePtr != nil && debugLogDate == today {
+		return nil
+	}
+	if debugLogFilePtr != nil {
+		_ = debugLogFilePtr.Close()
+	}
+	dateDir := filepath.Join(debugLogDir, today)
+	if err := os.MkdirAll(dateDir, 0o755); err != nil {
+		return err
+	}
+	full := filepath.Join(dateDir, debugLogFile)
+	f, err := os.OpenFile(full, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0o644)
+	if err != nil {
+		return err
+	}
+	if info, err := f.Stat(); err == nil {
+		debugLogSize = info.Size()
+	} else {
+		debugLogSize = 0
+	}
+	debugLogFilePtr = f
+	debugLogDate = today
+	return nil
+}
+
+// buildDebugEntry 生成一段可读的日志条目（cURL 命令 + 响应）。
+func buildDebugEntry(method, fullURL string, headers map[string]string, body string, httpStatus int, respBody string, requestID string) string {
+	now := time.Now().Format("2006-01-02 15:04:05.000")
+
+	var sb strings.Builder
+	sb.WriteString("\n==================== ")
+	sb.WriteString(now)
+	sb.WriteString(" ====================\n")
+
+	// ---- cURL ----
+	sb.WriteString("curl -sS -X ")
+	sb.WriteString(strings.ToUpper(strings.TrimSpace(method)))
+	sb.WriteString(" '")
+	sb.WriteString(fullURL)
+	sb.WriteString("'")
+	for _, k := range sortedHeaderKeys(headers) {
+		sb.WriteString(" \\\n  -H '")
+		sb.WriteString(k)
+		sb.WriteString(": ")
+		sb.WriteString(headers[k])
+		sb.WriteString("'")
+	}
+	if strings.TrimSpace(body) != "" {
+		sb.WriteString(" \\\n  --data-urlencode 'bizContent=")
+		sb.WriteString(body)
+		sb.WriteString("'")
+	}
+	sb.WriteString("\n")
+
+	// ---- RESPONSE ----
+	sb.WriteString("--- RESPONSE ---\n")
+	sb.WriteString("HTTP ")
+	sb.WriteString(fmt.Sprintf("%d", httpStatus))
+	if requestID != "" {
+		sb.WriteString("  requestId=")
+		sb.WriteString(requestID)
+	}
+	sb.WriteString("\n")
+	sb.WriteString("body: ")
+	sb.WriteString(respBody)
+	sb.WriteString("\n")
+	return sb.String()
+}
+
+func sortedHeaderKeys(headers map[string]string) []string {
+	keys := make([]string, 0, len(headers))
+	for k := range headers {
+		keys = append(keys, k)
+	}
+	// 简单冒泡，依赖少
+	for i := 0; i < len(keys); i++ {
+		for j := i + 1; j < len(keys); j++ {
+			if keys[i] > keys[j] {
+				keys[i], keys[j] = keys[j], keys[i]
+			}
+		}
+	}
+	return keys
+}