kra-new/internal/server/middleware/audit.go

187 lines
9.1 KiB
Go

package middleware
import (
"bytes"
"encoding/json"
"fmt"
"io"
"net/http"
"net/url"
"strconv"
"strings"
"time"
"kra/internal/conf"
"kra/internal/service"
"kra/internal/service/dto"
"github.com/gin-gonic/gin"
)
const ctxOperationAuditPersistFailedKey = "operation_audit_persist_failed"
func OperationAudit(runtime *conf.Runtime, service *service.AuditRecorder) gin.HandlerFunc {
return func(c *gin.Context) {
path := c.Request.URL.Path
if !recordsOperation(c.Request.Method, path) {
c.Next()
return
}
var requestBody []byte
maxBytes := 1024
if config := runtime.Admin(); config != nil && config.Zap != nil && config.Zap.AccessLogMaxBytes > 0 {
maxBytes = int(config.Zap.AccessLogMaxBytes)
}
if c.Request.Method == http.MethodGet {
requestBody = operationQueryBody(c.Request.URL.RawQuery)
} else if value, ok := c.Get(ctxReqBodyKey); ok {
requestBody = []byte(stringValue(value))
} else if c.Request.Body != nil {
// Fallback for tests or custom middleware chains that omit AccessLog.
if strings.Contains(c.GetHeader("Content-Type"), "multipart/form-data") {
requestBody = []byte("[文件]")
} else {
requestBody, _ = io.ReadAll(c.Request.Body)
c.Request.Body = io.NopCloser(bytes.NewReader(requestBody))
}
}
// The reference middleware captures up to the global 1 MiB response
// safety limit and only applies the configured operation-log limit when a
// download response is recorded. Using maxBytes here would silently
// truncate ordinary JSON responses before that decision is possible.
started := time.Now()
c.Next()
userID := uint(0)
if claims := Claims(c); claims != nil {
userID = claims.ID
} else if value, err := strconv.ParseUint(c.GetHeader("x-user-id"), 10, 64); err == nil {
userID = uint(value)
}
requestID, _ := c.Get("request_id")
status := c.Writer.Status()
responseBody := ""
if value, ok := c.Get(ctxRespBufferKey); ok {
if body, bok := value.(*bytes.Buffer); bok {
responseBody = body.String()
}
}
if isDownloadResponse(c) && len(responseBody) > maxBytes {
responseBody = "[超出记录长度]"
}
errorMessage := c.Errors.ByType(gin.ErrorTypePrivate).String()
if err := service.RecordOperationRequest(c.Request.Context(), &dto.OperationRecordRequest{IP: c.ClientIP(), Method: c.Request.Method, Path: path, Status: status, LatencyMS: time.Since(started).Milliseconds(), Agent: c.Request.UserAgent(), ErrorMessage: errorMessage, Body: operationRequestBody(requestBody, c.GetHeader("Content-Type"), maxBytes), Response: responseBody, UserID: userID, RequestID: stringValue(requestID), TraceID: stringValueFromContext(c, "trace_id"), DeviceID: c.GetHeader("X-Device-Id")}); err != nil {
// Preserve the business response, but expose audit persistence failures
// to the global access/error logging pipeline.
c.Set(ctxOperationAuditPersistFailedKey, true)
_ = c.Error(fmt.Errorf("operation audit persist: %w", err))
}
}
}
func operationQueryBody(raw string) []byte {
query, _ := url.QueryUnescape(raw)
values := make(map[string]string)
for _, item := range strings.Split(query, "&") {
parts := strings.Split(item, "=")
if len(parts) == 2 {
values[parts[0]] = parts[1]
}
}
body, _ := json.Marshal(&values)
return body
}
func operationRequestBody(raw []byte, contentType string, limit int) string {
if strings.Contains(contentType, "multipart/form-data") {
return "[文件]"
}
text := string(raw)
if strings.Contains(strings.ToLower(contentType), "json") && text != "" {
var value any
if json.Unmarshal(raw, &value) == nil {
maskOperationBody(value)
if encoded, err := json.Marshal(value); err == nil {
text = string(encoded)
}
}
}
if len(text) > limit {
return "[超出记录长度]"
}
return text
}
func maskOperationBody(value any) {
switch current := value.(type) {
case map[string]any:
for key, item := range current {
normalized := strings.ToLower(strings.ReplaceAll(strings.ReplaceAll(key, "_", ""), "-", ""))
if normalized == "password" || normalized == "newpassword" || normalized == "oldpassword" || normalized == "confirmpassword" || normalized == "passwd" || normalized == "pwd" || normalized == "token" || normalized == "accesstoken" || normalized == "refreshtoken" || normalized == "secret" || normalized == "clientsecret" || normalized == "apikey" || normalized == "privatekey" || normalized == "idcard" {
current[key] = "***"
continue
}
maskOperationBody(item)
}
case []any:
for _, item := range current {
maskOperationBody(item)
}
}
}
func isDownloadResponse(c *gin.Context) bool {
header := c.Writer.Header()
return strings.Contains(header.Get("Pragma"), "public") ||
strings.Contains(header.Get("Expires"), "0") ||
strings.Contains(header.Get("Cache-Control"), "must-revalidate, post-check=0, pre-check=0") ||
strings.Contains(header.Get("Content-Type"), "application/force-download") ||
strings.Contains(header.Get("Content-Type"), "application/octet-stream") ||
strings.Contains(header.Get("Content-Type"), "application/vnd.ms-excel") ||
strings.Contains(header.Get("Content-Type"), "application/download") ||
strings.Contains(header.Get("Content-Disposition"), "attachment") ||
strings.Contains(header.Get("Content-Transfer-Encoding"), "binary")
}
// recordsOperation mirrors the routes on which operation records are enabled.
// Matching by suffix keeps the behavior stable when router-prefix is configured.
func recordsOperation(method, path string) bool {
_, ok := operationRoutes[method+" "+routeSuffix(path)]
return ok
}
func routeSuffix(path string) string {
for _, marker := range []string{"/user/", "/api/", "/casbin/", "/authority/", "/menu/", "/department/", "/position/", "/sysDictionary/", "/sysDictionaryDetail/", "/sysParams/", "/securityConfig/", "/system/", "/sysApiToken/", "/sysVersion/", "/sysExportTemplate/", "/sysError/", "/sysLoginLog/", "/sysOperationRecord/", "/dataAccessLog/", "/timedTask/", "/info/", "/email/"} {
if index := strings.Index(path, marker); index >= 0 {
return path[index:]
}
}
return path
}
var operationRoutes = func() map[string]struct{} {
values := []string{
"POST /user/admin_register", "POST /user/changePassword", "POST /user/setUserAuthority", "DELETE /user/deleteUser", "PUT /user/setUserInfo", "PUT /user/setSelfInfo", "POST /user/setUserAuthorities", "POST /user/setUserDepartments", "POST /user/setUserPositions", "POST /user/resetPassword", "PUT /user/setSelfSetting",
"GET /api/getApiGroups", "GET /api/syncApi", "POST /api/ignoreApi", "POST /api/enterSyncApi", "POST /api/createApi", "POST /api/deleteApi", "POST /api/getApiById", "POST /api/updateApi", "DELETE /api/deleteApisByIds", "POST /api/setApiRoles", "POST /casbin/updateCasbin",
"POST /authority/createAuthority", "POST /authority/deleteAuthority", "PUT /authority/updateAuthority", "POST /authority/copyAuthority", "POST /authority/setDataScope", "POST /authority/setRoleUsers",
"POST /menu/addBaseMenu", "POST /menu/addMenuAuthority", "POST /menu/deleteBaseMenu", "POST /menu/updateBaseMenu", "POST /menu/setMenuRoles",
"POST /department/createDepartment", "PUT /department/updateDepartment", "DELETE /department/deleteDepartment", "POST /department/setDepartmentUsers",
"POST /position/createPosition", "PUT /position/updatePosition", "DELETE /position/deletePosition", "POST /position/setPositionUsers",
"POST /sysDictionary/createSysDictionary", "DELETE /sysDictionary/deleteSysDictionary", "PUT /sysDictionary/updateSysDictionary", "POST /sysDictionary/importSysDictionary", "GET /sysDictionary/exportSysDictionary",
"POST /sysDictionaryDetail/createSysDictionaryDetail", "DELETE /sysDictionaryDetail/deleteSysDictionaryDetail", "PUT /sysDictionaryDetail/updateSysDictionaryDetail",
"POST /sysParams/createSysParams", "DELETE /sysParams/deleteSysParams", "DELETE /sysParams/deleteSysParamsByIds", "PUT /sysParams/updateSysParams",
"POST /securityConfig/setSecurityConfig", "POST /system/setSystemConfig", "POST /system/reloadSystem",
"POST /sysApiToken/createApiToken", "POST /sysApiToken/getApiTokenList", "POST /sysApiToken/deleteApiToken",
"DELETE /sysVersion/deleteSysVersion", "DELETE /sysVersion/deleteSysVersionByIds", "POST /sysVersion/exportVersion", "POST /sysVersion/importVersion",
"POST /sysExportTemplate/createSysExportTemplate", "DELETE /sysExportTemplate/deleteSysExportTemplate", "DELETE /sysExportTemplate/deleteSysExportTemplateByIds", "PUT /sysExportTemplate/updateSysExportTemplate", "POST /sysExportTemplate/importExcel",
"DELETE /sysError/deleteSysError", "DELETE /sysError/deleteSysErrorByIds", "PUT /sysError/updateSysError",
"DELETE /sysLoginLog/deleteLoginLog", "DELETE /sysLoginLog/deleteLoginLogByIds", "DELETE /dataAccessLog/deleteDataAccessLogByIds",
"POST /timedTask/createTimedTask", "PUT /timedTask/updateTimedTask", "DELETE /timedTask/deleteTimedTask", "POST /timedTask/toggleTimedTask", "POST /timedTask/triggerTimedTask",
"POST /info/createInfo", "DELETE /info/deleteInfo", "DELETE /info/deleteInfoByIds", "PUT /info/updateInfo", "POST /email/emailTest", "POST /email/sendEmail",
}
out := make(map[string]struct{}, len(values))
for _, value := range values {
out[value] = struct{}{}
}
return out
}()