🐛 fix(handlers): 统一错误响应为安全 JSON 并补参数校验

- 新增 respondError:JSON 安全编码,客户端错误返回 400,服务端错误返回 500
- 收编 book/content/media/category 中 13 处 fmt.Fprintf 内联 JSON,修复错误信息含引号/换行时产出非法 JSON 的问题
- search/detail/catalog/multi-detail/content/multi-content/item-summary/audio/video 补必需参数校验,缺参返回 400
- search 的 offset/tab_type 非数字时返回 400,不再静默置 0
- 补齐 multi-detail/multi-content 的请求统计计数
- 新增 error_response_test.go:3 个测试锁定错误响应行为
- openapi.yaml 新增 ServerError 响应组件,15 个业务接口补 400/500 响应定义

BREAKING CHANGE: 业务接口错误不再返回 HTTP 200,缺参返回 400,上游失败返回 500
This commit is contained in:
chenxin committed 2026-09-29 22:47:01 +08:00
1 parent 1eccebedf9
commit d1774a3902
7 files changed
+209 -52

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+42 -23
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@@ -4,7 +4,6 @@ import (
"fanqie/internal/fqapi"
"fmt"
"net/http"
"strconv"
)
// HandleSearch 搜索处理
@@ -16,22 +15,29 @@ func HandleSearch(w http.ResponseWriter, r *http.Request) {
if query == "" {
query = r.URL.Query().Get("key")
}
offsetStr := r.URL.Query().Get("offset")
offset := 0
if offsetStr != "" {
offset, _ = strconv.Atoi(offsetStr)
if query == "" {
respondError(w, "缺少 query 参数", true)
return
}
tabTypeStr := r.URL.Query().Get("tab_type")
tabType := 3
if tabTypeStr != "" {
tabType, _ = strconv.Atoi(tabTypeStr)
offset, err := parseIntParam(r.URL.Query().Get("offset"), "offset")
if err != nil {
respondError(w, err.Error(), true)
return
}
tabType, err := parseIntParam(r.URL.Query().Get("tab_type"), "tab_type")
if err != nil {
respondError(w, err.Error(), true)
return
}
if tabType == 0 {
tabType = 3
}
result, err := fqapi.HandleBookSearch(query, offset, tabType)
if err != nil {
fmt.Fprintf(w, `{"code": -1, "msg": "搜索失败: %s"}`, err.Error())
respondError(w, "搜索失败: "+err.Error(), false)
return
}
@@ -43,11 +49,15 @@ func HandleDetail(w http.ResponseWriter, r *http.Request) {
incrementStat("total", "detail")
w.Header().Set("Content-Type", "application/json; charset=utf-8")
bookID := r.URL.Query().Get("book_id")
result, err := fqapi.HandleGetDetail(bookID)
params, err := validateParams(r, "book_id")
if err != nil {
fmt.Fprintf(w, `{"code": -1, "msg": "获取详情失败: %s"}`, err.Error())
respondError(w, err.Error(), true)
return
}
result, err := fqapi.HandleGetDetail(params["book_id"])
if err != nil {
respondError(w, "获取详情失败: "+err.Error(), false)
return
}
@@ -59,11 +69,15 @@ func HandleCatalog(w http.ResponseWriter, r *http.Request) {
incrementStat("total", "catalog")
w.Header().Set("Content-Type", "application/json; charset=utf-8")
bookID := r.URL.Query().Get("book_id")
result, err := fqapi.HandleGetCatalog(bookID)
params, err := validateParams(r, "book_id")
if err != nil {
fmt.Fprintf(w, `{"code": -1, "msg": "获取目录失败: %s"}`, err.Error())
respondError(w, err.Error(), true)
return
}
result, err := fqapi.HandleGetCatalog(params["book_id"])
if err != nil {
respondError(w, "获取目录失败: "+err.Error(), false)
return
}
@@ -72,13 +86,18 @@ func HandleCatalog(w http.ResponseWriter, r *http.Request) {
// HandleMultiDetail 批量详情处理
func HandleMultiDetail(w http.ResponseWriter, r *http.Request) {
incrementStat("total", "detail")
w.Header().Set("Content-Type", "application/json; charset=utf-8")
bookID := r.URL.Query().Get("book_id")
result, err := fqapi.HandleGetMultiDetail(bookID)
params, err := validateParams(r, "book_id")
if err != nil {
fmt.Fprintf(w, `{"code": -1, "msg": "批量获取详情失败: %s"}`, err.Error())
respondError(w, err.Error(), true)
return
}
result, err := fqapi.HandleGetMultiDetail(params["book_id"])
if err != nil {
respondError(w, "批量获取详情失败: "+err.Error(), false)
return
}
+2 -2
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@@ -15,7 +15,7 @@ func HandleCategoryFront(w http.ResponseWriter, r *http.Request) {
result, err := fqapi.HandleCategoryFront(tab)
if err != nil {
fmt.Fprintf(w, `{"code": -1, "msg": "获取分类列表失败: %s"}`, err.Error())
respondError(w, "获取分类列表失败: "+err.Error(), false)
return
}
@@ -35,7 +35,7 @@ func HandleCategoryLanding(w http.ResponseWriter, r *http.Request) {
result, err := fqapi.HandleCategoryLanding(categoryID, offset, wordNumber, bookStatus, sortBy)
if err != nil {
fmt.Fprintf(w, `{"code": -1, "msg": "获取分类详情失败: %s"}`, err.Error())
respondError(w, "获取分类详情失败: "+err.Error(), false)
return
}
+9
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@@ -96,6 +96,15 @@ func StopStatisticsSaver() {
}
}
// respondError 统一错误响应(JSON 安全编码;isClientErr 为 true 时返回 400,否则 500)
func respondError(w http.ResponseWriter, msg string, isClientErr bool) {
status := http.StatusInternalServerError
if isClientErr {
status = http.StatusBadRequest
}
respondJSON(w, status, map[string]interface{}{"code": -1, "msg": msg})
}
// RequireAccessKey 验证访问密钥中间件
func RequireAccessKey(handler http.HandlerFunc) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
+25 -13
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@@ -12,9 +12,13 @@ func HandleContent(w http.ResponseWriter, r *http.Request) {
incrementStat("total", "content")
w.Header().Set("Content-Type", "application/json; charset=utf-8")
// 从查询参数获取item_id
itemID := r.URL.Query().Get("item_id")
params, err := validateParams(r, "item_id")
if err != nil {
respondError(w, err.Error(), true)
return
}
itemID := params["item_id"]
// 获取URL参数(支持动态覆盖配置)
textMode := r.URL.Query().Get("text_mode") // 1=纯文本模式
imageMode := r.URL.Query().Get("image_mode") // 0=移除图片, 1=保留图片
@@ -22,7 +26,7 @@ func HandleContent(w http.ResponseWriter, r *http.Request) {
result, err := fqapi.HandleGetContent(itemID, textMode, imageMode)
if err != nil {
fmt.Fprintf(w, `{"code": -1, "msg": "获取内容失败: %s"}`, err.Error())
respondError(w, "获取内容失败: "+err.Error(), false)
return
}
@@ -51,17 +55,22 @@ func HandleContent(w http.ResponseWriter, r *http.Request) {
// HandleMultiContent 批量内容处理
func HandleMultiContent(w http.ResponseWriter, r *http.Request) {
incrementStat("total", "content")
w.Header().Set("Content-Type", "application/json; charset=utf-8")
bookID := r.URL.Query().Get("book_id")
itemIDs := r.URL.Query().Get("item_ids")
params, err := validateParams(r, "book_id", "item_ids")
if err != nil {
respondError(w, err.Error(), true)
return
}
textMode := r.URL.Query().Get("text_mode")
imageMode := r.URL.Query().Get("image_mode")
ignoreFailed := r.URL.Query().Get("ignore_failed")
result, err := fqapi.HandleMultiContent(itemIDs, bookID, textMode, imageMode, ignoreFailed)
result, err := fqapi.HandleMultiContent(params["item_ids"], params["book_id"], textMode, imageMode, ignoreFailed)
if err != nil {
fmt.Fprintf(w, `{"code": -1, "msg": "批量获取内容失败: %s"}`, err.Error())
respondError(w, "批量获取内容失败: "+err.Error(), false)
return
}
@@ -72,12 +81,15 @@ func HandleMultiContent(w http.ResponseWriter, r *http.Request) {
func HandleItemSummary(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "application/json; charset=utf-8")
bookID := r.URL.Query().Get("book_id")
itemIDs := r.URL.Query().Get("item_ids")
result, err := fqapi.HandleItemSummary(itemIDs, bookID)
params, err := validateParams(r, "book_id", "item_ids")
if err != nil {
fmt.Fprintf(w, `{"code": -1, "msg": "获取章节摘要失败: %s"}`, err.Error())
respondError(w, err.Error(), true)
return
}
result, err := fqapi.HandleItemSummary(params["item_ids"], params["book_id"])
if err != nil {
respondError(w, "获取章节摘要失败: "+err.Error(), false)
return
}
+42
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@@ -0,0 +1,42 @@
package handlers
import (
"encoding/json"
"net/http/httptest"
"testing"
)
// TestRespondErrorProducesValidJSON 错误信息含引号/换行时输出仍须是合法 JSON
func TestRespondErrorProducesValidJSON(t *testing.T) {
w := httptest.NewRecorder()
respondError(w, "上游返回了 \"引号\" 和\n换行", false)
var body map[string]interface{}
if err := json.Unmarshal(w.Body.Bytes(), &body); err != nil {
t.Fatalf("非法 JSON: %v, body: %s", err, w.Body.String())
}
if body["code"].(float64) != -1 {
t.Errorf("code 应为 -1, got %v", body["code"])
}
if w.Code != 500 {
t.Errorf("服务端错误应返回 500, got %d", w.Code)
}
}
// TestRespondErrorClientErr 客户端错误应返回 400
func TestRespondErrorClientErr(t *testing.T) {
w := httptest.NewRecorder()
respondError(w, "缺少 book_id 参数", true)
if w.Code != 400 {
t.Errorf("客户端错误应返回 400, got %d", w.Code)
}
}
// TestHandleDetailMissingParam 缺少必需参数返回 400 而非透传到上游
func TestHandleDetailMissingParam(t *testing.T) {
w := httptest.NewRecorder()
HandleDetail(w, httptest.NewRequest("GET", "/detail", nil))
if w.Code != 400 {
t.Errorf("缺参应返回 400, got %d, body: %s", w.Code, w.Body.String())
}
}
+21 -14
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@@ -13,13 +13,18 @@ func HandleAudio(w http.ResponseWriter, r *http.Request) {
incrementStat("total", "audio")
w.Header().Set("Content-Type", "application/json; charset=utf-8")
itemIDs := r.URL.Query().Get("item_ids")
params, err := validateParams(r, "item_ids")
if err != nil {
respondError(w, err.Error(), true)
return
}
toneID := r.URL.Query().Get("tone_id")
output := r.URL.Query().Get("output")
result, err := fqapi.HandleAudio(itemIDs, toneID, output)
result, err := fqapi.HandleAudio(params["item_ids"], toneID, output)
if err != nil {
fmt.Fprintf(w, `{"code": -1, "msg": "获取音频失败: %s"}`, err.Error())
respondError(w, "获取音频失败: "+err.Error(), false)
return
}
@@ -62,11 +67,15 @@ func HandleVideo(w http.ResponseWriter, r *http.Request) {
incrementStat("total", "video")
w.Header().Set("Content-Type", "application/json; charset=utf-8")
itemIDs := r.URL.Query().Get("item_ids")
result, err := fqapi.HandleVideo(itemIDs)
params, err := validateParams(r, "item_ids")
if err != nil {
fmt.Fprintf(w, `{"code": -1, "msg": "获取视频失败: %s"}`, err.Error())
respondError(w, err.Error(), true)
return
}
result, err := fqapi.HandleVideo(params["item_ids"])
if err != nil {
respondError(w, "获取视频失败: "+err.Error(), false)
return
}
@@ -76,14 +85,13 @@ func HandleVideo(w http.ResponseWriter, r *http.Request) {
// HandleManga 漫画处理
func HandleManga(w http.ResponseWriter, r *http.Request) {
incrementStat("total", "manga")
itemID := r.URL.Query().Get("item_ids")
if itemID == "" {
itemID = r.URL.Query().Get("item_id")
}
if itemID == "" {
w.Header().Set("Content-Type", "application/json; charset=utf-8")
fmt.Fprint(w, `{"code": -1, "msg": "缺少item_ids参数"}`)
respondError(w, "缺少 item_ids 参数", true)
return
}
@@ -96,8 +104,7 @@ func HandleManga(w http.ResponseWriter, r *http.Request) {
result, err := fqapi.HandleGetManga(itemID, showHTML, outputMode)
if err != nil {
w.Header().Set("Content-Type", "application/json; charset=utf-8")
fmt.Fprintf(w, `{"code": -1, "msg": "获取漫画失败: %s"}`, err.Error())
respondError(w, "获取漫画失败: "+err.Error(), false)
return
}
@@ -113,16 +120,16 @@ func HandleManga(w http.ResponseWriter, r *http.Request) {
fmt.Fprint(w, `<p>未找到漫画内容</p>`)
} else {
// 返回JSON格式
w.Header().Set("Content-Type", "application/json; charset=utf-8")
jsonData, err := json.Marshal(map[string]interface{}{
"code": 0,
"msg": "success",
"data": result,
})
if err != nil {
fmt.Fprintf(w, `{"code": -1, "msg": "JSON编码失败: %s"}`, err.Error())
respondError(w, "JSON编码失败: "+err.Error(), false)
return
}
w.Header().Set("Content-Type", "application/json; charset=utf-8")
fmt.Fprint(w, string(jsonData))
}
}