首次提交：姜十三论坛

后端 Go+Gin：认证/CSRF/限流、板块、帖子、评论、点赞、通知、用户资料、置顶推荐；前端 Next.js 16：发帖/编辑/删除、搜索、分页、点赞、通知中心、设置；基础设施 docker-compose 与配置模板；添加 .gitignore 与专有许可证（保留所有权利）

backend/handler/post.go

@@ -0,0 +1,179 @@
+package handler
+
+import (
+	"net/http"
+	"strconv"
+
+	"github.com/freefire/jiang13-bbs/middleware"
+	"github.com/freefire/jiang13-bbs/service"
+	"github.com/gin-gonic/gin"
+)
+
+// Posts 获取帖子列表
+func (h *Handlers) Posts(c *gin.Context) {
+	page, _ := strconv.Atoi(c.DefaultQuery("page", "1"))
+	size, _ := strconv.Atoi(c.DefaultQuery("size", "20"))
+	boardID, _ := strconv.ParseUint(c.Query("board_id"), 10, 64)
+	sort := c.DefaultQuery("sort", "latest")
+	keyword := c.Query("keyword")
+
+	items, total, err := h.Post.List(service.PostListQuery{
+		BoardID: uint(boardID),
+		Page:    page,
+		Size:    size,
+		Sort:    sort,
+		Keyword: keyword,
+	})
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+		return
+	}
+	// 填充点赞状态（仅登录用户）
+	if claims := middleware.CurrentUser(c); claims != nil {
+		ids := make([]uint, 0, len(items))
+		for _, p := range items {
+			ids = append(ids, p.ID)
+		}
+		likedMap := h.Like.BatchHasLiked(ids, claims.ID)
+		for i := range items {
+			items[i].Liked = likedMap[items[i].ID]
+		}
+	}
+	c.JSON(http.StatusOK, gin.H{
+		"posts": items,
+		"total": total,
+		"page":  page,
+		"size":  size,
+	})
+}
+
+// PostDetail 获取帖子详情
+func (h *Handlers) PostDetail(c *gin.Context) {
+	id, err := strconv.ParseUint(c.Param("id"), 10, 64)
+	if err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "无效的帖子 ID"})
+		return
+	}
+	post, err := h.Post.GetByID(uint(id))
+	if err != nil {
+		c.JSON(http.StatusNotFound, gin.H{"error": "帖子不存在"})
+		return
+	}
+	// 填充点赞状态（仅登录用户）
+	if claims := middleware.CurrentUser(c); claims != nil {
+		post.Liked = h.Like.HasLiked(post.ID, claims.ID)
+	}
+	c.JSON(http.StatusOK, gin.H{"post": post})
+}
+
+// CreatePostRequest 发帖请求
+type CreatePostRequest struct {
+	BoardID  uint   `json:"board_id" binding:"required"`
+	Title    string `json:"title" binding:"required,min=1,max=256"`
+	Content  string `json:"content" binding:"required,min=1"`
+	Tags     string `json:"tags"`
+	PostType string `json:"post_type"`
+}
+
+// CreatePost 创建帖子
+func (h *Handlers) CreatePost(c *gin.Context) {
+	claims := middleware.CurrentUser(c)
+	var req CreatePostRequest
+	if err := c.ShouldBindJSON(&req); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+	postType := req.PostType
+	if postType == "" {
+		postType = "normal"
+	}
+	post, err := h.Post.Create(claims.ID, req.BoardID, req.Title, req.Content, req.Tags, postType)
+	if err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+	c.JSON(http.StatusOK, gin.H{"post": post})
+}
+
+// UpdatePostRequest 更新帖子请求
+type UpdatePostRequest struct {
+	Title   string `json:"title" binding:"omitempty,min=1,max=256"`
+	Content string `json:"content" binding:"omitempty,min=1"`
+	Tags    string `json:"tags"`
+}
+
+// UpdatePost 编辑帖子
+func (h *Handlers) UpdatePost(c *gin.Context) {
+	claims := middleware.CurrentUser(c)
+	id, err := strconv.ParseUint(c.Param("id"), 10, 64)
+	if err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "无效的帖子 ID"})
+		return
+	}
+	var req UpdatePostRequest
+	if err := c.ShouldBindJSON(&req); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+	post, err := h.Post.Update(uint(id), claims.ID, claims.Role, req.Title, req.Content, req.Tags)
+	if err != nil {
+		c.JSON(http.StatusForbidden, gin.H{"error": err.Error()})
+		return
+	}
+	c.JSON(http.StatusOK, gin.H{"post": post})
+}
+
+// DeletePost 删除帖子
+func (h *Handlers) DeletePost(c *gin.Context) {
+	claims := middleware.CurrentUser(c)
+	id, err := strconv.ParseUint(c.Param("id"), 10, 64)
+	if err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "无效的帖子 ID"})
+		return
+	}
+	if err := h.Post.Delete(uint(id), claims.ID, claims.Role); err != nil {
+		c.JSON(http.StatusForbidden, gin.H{"error": err.Error()})
+		return
+	}
+	c.JSON(http.StatusOK, gin.H{"message": "已删除"})
+}
+
+// TogglePin 切换帖子置顶（仅管理员）
+func (h *Handlers) TogglePin(c *gin.Context) {
+	claims := middleware.CurrentUser(c)
+	if claims.Role != "admin" {
+		c.JSON(http.StatusForbidden, gin.H{"error": "仅管理员可操作"})
+		return
+	}
+	id, err := strconv.ParseUint(c.Param("id"), 10, 64)
+	if err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "无效的帖子 ID"})
+		return
+	}
+	pinned, err := h.Post.TogglePin(uint(id))
+	if err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+	c.JSON(http.StatusOK, gin.H{"pinned": pinned})
+}
+
+// ToggleRecommend 切换帖子推荐（仅管理员）
+func (h *Handlers) ToggleRecommend(c *gin.Context) {
+	claims := middleware.CurrentUser(c)
+	if claims.Role != "admin" {
+		c.JSON(http.StatusForbidden, gin.H{"error": "仅管理员可操作"})
+		return
+	}
+	id, err := strconv.ParseUint(c.Param("id"), 10, 64)
+	if err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "无效的帖子 ID"})
+		return
+	}
+	recommended, err := h.Post.ToggleRecommend(uint(id))
+	if err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+	c.JSON(http.StatusOK, gin.H{"recommended": recommended})
+}