Victor_Jay
6ec12010f3
- 编辑器：Tiptap 替换为 Vditor 3.11.2（wysiwyg 模式，本地托管 5.8MB，去 CDN） - 存储：Body 字段从 HTML 改为 Markdown，去除 BodyHTML，新增 Excerpt 列表摘要 - 安全：去除 bluemonday 依赖（MD 纯文本无 XSS 风险），go.mod 已清理 - Shortcode：新增 [zone:type:params] 扩展语法，支持活动/游戏/投票/资源卡片 - 图片上传：POST /api/posts/upload-image 直接返回 Vditor 原生响应格式 - 草稿：localStorage 键名改为 draft_post_body_md，与旧 HTML 草稿隔离 - 详情页：Vditor.method.min.js 客户端 MD → HTML 渲染，去 highlight.js CDN - 样式：去 Tiptap 样式 ~190 行，精简工具栏 CSS，新增卡片样式 - 文档：vditor-migration-plan.md 完整记录迁移决策、架构、用法
465 lines
12 KiB
Go
465 lines
12 KiB
Go
package controller
|
||
|
||
import (
|
||
"errors"
|
||
"fmt"
|
||
"mime/multipart"
|
||
"net/http"
|
||
"os"
|
||
"path/filepath"
|
||
"strconv"
|
||
"strings"
|
||
"time"
|
||
|
||
"metazone.cc/metalab/internal/common"
|
||
"metazone.cc/metalab/internal/model"
|
||
"metazone.cc/metalab/internal/service"
|
||
|
||
"github.com/gin-gonic/gin"
|
||
)
|
||
|
||
// PostController 帖子控制器（SSR 页面 + API）
|
||
type PostController struct {
|
||
postService postUseCase
|
||
shortcodeSvc *service.ShortcodeService
|
||
}
|
||
|
||
// NewPostController 构造函数
|
||
func NewPostController(ps postUseCase, scs *service.ShortcodeService) *PostController {
|
||
return &PostController{postService: ps, shortcodeSvc: scs}
|
||
}
|
||
|
||
// ListPage 帖子列表页
|
||
func (ctrl *PostController) ListPage(c *gin.Context) {
|
||
keyword := c.Query("keyword")
|
||
page, _ := strconv.Atoi(c.DefaultQuery("page", "1"))
|
||
pageSize, _ := strconv.Atoi(c.DefaultQuery("page_size", "20"))
|
||
|
||
posts, total, err := ctrl.postService.List(keyword, page, pageSize)
|
||
if err != nil {
|
||
c.HTML(http.StatusOK, "posts/index.html", common.BuildPageData(c, gin.H{
|
||
"Title": "社区帖子",
|
||
"Error": "加载帖子列表失败",
|
||
}))
|
||
return
|
||
}
|
||
|
||
if posts == nil {
|
||
posts = []model.Post{}
|
||
}
|
||
|
||
p := common.Pagination{Page: page, PageSize: pageSize}
|
||
p.DefaultPagination()
|
||
totalPages := p.TotalPages(total)
|
||
|
||
c.HTML(http.StatusOK, "posts/index.html", common.BuildPageData(c, gin.H{
|
||
"Title": "社区帖子",
|
||
"Posts": posts,
|
||
"Total": total,
|
||
"Page": p.Page,
|
||
"TotalPages": totalPages,
|
||
"PrevPage": p.PrevPage(),
|
||
"NextPage": p.NextPage(totalPages),
|
||
"Keyword": keyword,
|
||
"ExtraCSS": "/static/css/posts.css",
|
||
}))
|
||
}
|
||
|
||
// ShowPage 帖子详情页
|
||
func (ctrl *PostController) ShowPage(c *gin.Context) {
|
||
id, err := strconv.ParseUint(c.Param("id"), 10, 64)
|
||
if err != nil {
|
||
c.HTML(http.StatusNotFound, "posts/404.html", common.BuildPageData(c, gin.H{
|
||
"Title": "未找到",
|
||
}))
|
||
return
|
||
}
|
||
|
||
post, err := ctrl.postService.GetByID(uint(id))
|
||
if err != nil {
|
||
c.HTML(http.StatusNotFound, "posts/404.html", common.BuildPageData(c, gin.H{
|
||
"Title": "未找到",
|
||
}))
|
||
return
|
||
}
|
||
|
||
// 获取当前用户信息
|
||
var uid uint
|
||
var role string
|
||
if uidObj, exists := c.Get("uid"); exists {
|
||
uid, _ = uidObj.(uint)
|
||
}
|
||
if roleObj, exists := c.Get("role"); exists {
|
||
role, _ = roleObj.(string)
|
||
}
|
||
|
||
// 仅 approved 公开可见（作者本人 + moderator+ 可预览其他状态）
|
||
if post.Status != model.PostStatusApproved {
|
||
isAuthor := uid == post.UserID
|
||
isModerator := model.HasMinRole(role, model.RoleModerator)
|
||
|
||
if !isAuthor && !isModerator {
|
||
c.HTML(http.StatusNotFound, "posts/404.html", common.BuildPageData(c, gin.H{
|
||
"Title": "未找到",
|
||
}))
|
||
return
|
||
}
|
||
}
|
||
|
||
// 处理 shortcode：[zone:type:params] → HTML 占位符
|
||
// 占位 div 会被 Vditor.preview() 保留，由前端 shortcode.js 渲染为卡片
|
||
if ctrl.shortcodeSvc != nil {
|
||
result := ctrl.shortcodeSvc.Process(post.Body)
|
||
post.Body = result.ProcessedBody
|
||
}
|
||
|
||
c.HTML(http.StatusOK, "posts/show.html", common.BuildPageData(c, gin.H{
|
||
"Title": post.Title,
|
||
"Post": post,
|
||
"UID": uid,
|
||
"StatusNames": model.PostStatusDisplayNames,
|
||
"ExtraCSS": "/static/css/posts.css",
|
||
}))
|
||
}
|
||
|
||
// NewPage 发帖页面
|
||
func (ctrl *PostController) NewPage(c *gin.Context) {
|
||
c.HTML(http.StatusOK, "posts/new.html", common.BuildPageData(c, gin.H{
|
||
"Title": "撰写帖子",
|
||
"ExtraCSS": "/static/css/posts.css",
|
||
}))
|
||
}
|
||
|
||
// EditPage 编辑页面
|
||
func (ctrl *PostController) EditPage(c *gin.Context) {
|
||
id, err := strconv.ParseUint(c.Param("id"), 10, 64)
|
||
if err != nil {
|
||
c.HTML(http.StatusNotFound, "posts/404.html", common.BuildPageData(c, gin.H{
|
||
"Title": "未找到",
|
||
}))
|
||
return
|
||
}
|
||
|
||
post, err := ctrl.postService.GetByID(uint(id))
|
||
if err != nil || post.Status == model.PostStatusPending || post.Status == model.PostStatusLocked {
|
||
c.HTML(http.StatusNotFound, "posts/404.html", common.BuildPageData(c, gin.H{
|
||
"Title": "未找到或无法编辑",
|
||
}))
|
||
return
|
||
}
|
||
|
||
// 权限检查：仅作者和 moderator+ 可编辑
|
||
var uid uint
|
||
var role string
|
||
if uidObj, exists := c.Get("uid"); exists {
|
||
uid, _ = uidObj.(uint)
|
||
}
|
||
if roleObj, exists := c.Get("role"); exists {
|
||
role, _ = roleObj.(string)
|
||
}
|
||
if post.UserID != uid && !model.HasMinRole(role, model.RoleModerator) {
|
||
c.HTML(http.StatusNotFound, "posts/404.html", common.BuildPageData(c, gin.H{
|
||
"Title": "未找到",
|
||
}))
|
||
return
|
||
}
|
||
|
||
c.HTML(http.StatusOK, "posts/new.html", common.BuildPageData(c, gin.H{
|
||
"Title": "编辑帖子",
|
||
"Post": post,
|
||
"ExtraCSS": "/static/css/posts.css",
|
||
}))
|
||
}
|
||
|
||
// Create API 发帖
|
||
func (ctrl *PostController) Create(c *gin.Context) {
|
||
uidObj, _ := c.Get("uid")
|
||
uid, ok := uidObj.(uint)
|
||
if !ok {
|
||
common.Error(c, http.StatusUnauthorized, "请先登录")
|
||
return
|
||
}
|
||
|
||
var req model.PostCreateRequest
|
||
if err := c.ShouldBindJSON(&req); err != nil {
|
||
common.Error(c, http.StatusBadRequest, "标题和正文不能为空")
|
||
return
|
||
}
|
||
|
||
post, err := ctrl.postService.Create(uid, req.Title, req.Body)
|
||
if err != nil {
|
||
common.Error(c, http.StatusInternalServerError, "发帖失败")
|
||
return
|
||
}
|
||
|
||
common.OkWithMessage(c, post, "发布成功")
|
||
}
|
||
|
||
// Update API 编辑帖子
|
||
func (ctrl *PostController) Update(c *gin.Context) {
|
||
uidObj, _ := c.Get("uid")
|
||
uid, ok := uidObj.(uint)
|
||
if !ok {
|
||
common.Error(c, http.StatusUnauthorized, "请先登录")
|
||
return
|
||
}
|
||
|
||
id, err := strconv.ParseUint(c.Param("id"), 10, 64)
|
||
if err != nil {
|
||
common.Error(c, http.StatusBadRequest, "无效的帖子 ID")
|
||
return
|
||
}
|
||
|
||
var req model.PostUpdateRequest
|
||
if err := c.ShouldBindJSON(&req); err != nil {
|
||
common.Error(c, http.StatusBadRequest, "标题和正文不能为空")
|
||
return
|
||
}
|
||
|
||
// 权限检查：取帖子归属
|
||
post, err := ctrl.postService.GetByID(uint(id))
|
||
if err != nil {
|
||
common.Error(c, http.StatusNotFound, "帖子不存在")
|
||
return
|
||
}
|
||
roleObj, _ := c.Get("role")
|
||
role, _ := roleObj.(string)
|
||
if post.UserID != uid && !model.HasMinRole(role, model.RoleModerator) {
|
||
common.Error(c, http.StatusForbidden, "无权编辑此帖子")
|
||
return
|
||
}
|
||
|
||
if err := ctrl.postService.Update(uint(id), req.Title, req.Body); err != nil {
|
||
if errors.Is(err, common.ErrPostCannotEdit) {
|
||
common.Error(c, http.StatusBadRequest, err.Error())
|
||
} else {
|
||
common.Error(c, http.StatusInternalServerError, "编辑失败")
|
||
}
|
||
return
|
||
}
|
||
|
||
common.OkMessage(c, "编辑成功")
|
||
}
|
||
|
||
// Delete API 删除帖子
|
||
func (ctrl *PostController) Delete(c *gin.Context) {
|
||
uidObj, _ := c.Get("uid")
|
||
uid, ok := uidObj.(uint)
|
||
if !ok {
|
||
common.Error(c, http.StatusUnauthorized, "请先登录")
|
||
return
|
||
}
|
||
|
||
id, err := strconv.ParseUint(c.Param("id"), 10, 64)
|
||
if err != nil {
|
||
common.Error(c, http.StatusBadRequest, "无效的帖子 ID")
|
||
return
|
||
}
|
||
|
||
post, err := ctrl.postService.GetByID(uint(id))
|
||
if err != nil {
|
||
common.Error(c, http.StatusNotFound, "帖子不存在")
|
||
return
|
||
}
|
||
|
||
roleObj, _ := c.Get("role")
|
||
role, _ := roleObj.(string)
|
||
if post.UserID != uid && !model.HasMinRole(role, model.RoleModerator) {
|
||
common.Error(c, http.StatusForbidden, "无权删除此帖子")
|
||
return
|
||
}
|
||
|
||
if err := ctrl.postService.Delete(uint(id)); err != nil {
|
||
common.Error(c, http.StatusInternalServerError, "删除失败")
|
||
return
|
||
}
|
||
|
||
common.OkMessage(c, "删除成功")
|
||
}
|
||
|
||
// Submit API 提交审核
|
||
func (ctrl *PostController) Submit(c *gin.Context) {
|
||
uidObj, _ := c.Get("uid")
|
||
uid, ok := uidObj.(uint)
|
||
if !ok {
|
||
common.Error(c, http.StatusUnauthorized, "请先登录")
|
||
return
|
||
}
|
||
|
||
id, err := strconv.ParseUint(c.Param("id"), 10, 64)
|
||
if err != nil {
|
||
common.Error(c, http.StatusBadRequest, "无效的帖子 ID")
|
||
return
|
||
}
|
||
|
||
// 权限检查：仅帖子作者可提交审核
|
||
post, err := ctrl.postService.GetByID(uint(id))
|
||
if err != nil {
|
||
common.Error(c, http.StatusNotFound, "帖子不存在")
|
||
return
|
||
}
|
||
if post.UserID != uid {
|
||
common.Error(c, http.StatusForbidden, "无权操作此帖子")
|
||
return
|
||
}
|
||
|
||
if err := ctrl.postService.SubmitForAudit(uint(id)); err != nil {
|
||
if errors.Is(err, common.ErrPostCannotSubmit) || errors.Is(err, common.ErrPostNotFound) {
|
||
common.Error(c, http.StatusBadRequest, err.Error())
|
||
} else {
|
||
common.Error(c, http.StatusInternalServerError, "提交审核失败")
|
||
}
|
||
return
|
||
}
|
||
|
||
common.OkMessage(c, "已提交审核")
|
||
}
|
||
|
||
// ListAPI 帖子列表 JSON API
|
||
func (ctrl *PostController) ListAPI(c *gin.Context) {
|
||
keyword := c.Query("keyword")
|
||
page, _ := strconv.Atoi(c.DefaultQuery("page", "1"))
|
||
pageSize, _ := strconv.Atoi(c.DefaultQuery("page_size", "20"))
|
||
|
||
posts, total, err := ctrl.postService.List(keyword, page, pageSize)
|
||
if err != nil {
|
||
common.Error(c, http.StatusInternalServerError, "获取帖子列表失败")
|
||
return
|
||
}
|
||
|
||
if posts == nil {
|
||
posts = []model.Post{}
|
||
}
|
||
|
||
p := common.Pagination{Page: page, PageSize: pageSize}
|
||
p.DefaultPagination()
|
||
|
||
common.Ok(c, model.PostListResult{
|
||
Items: posts,
|
||
Total: total,
|
||
Page: p.Page,
|
||
TotalPages: p.TotalPages(total),
|
||
})
|
||
}
|
||
|
||
// ShowAPI 帖子详情 JSON API
|
||
func (ctrl *PostController) ShowAPI(c *gin.Context) {
|
||
id, err := strconv.ParseUint(c.Param("id"), 10, 64)
|
||
if err != nil {
|
||
common.Error(c, http.StatusBadRequest, "无效的帖子 ID")
|
||
return
|
||
}
|
||
|
||
post, err := ctrl.postService.GetByID(uint(id))
|
||
if err != nil {
|
||
common.Error(c, http.StatusNotFound, "帖子不存在")
|
||
return
|
||
}
|
||
|
||
// 权限控制：非 approved 帖子仅作者和 moderator+ 可见
|
||
if post.Status != model.PostStatusApproved {
|
||
var uid uint
|
||
var role string
|
||
if uidObj, exists := c.Get("uid"); exists {
|
||
uid, _ = uidObj.(uint)
|
||
}
|
||
if roleObj, exists := c.Get("role"); exists {
|
||
role, _ = roleObj.(string)
|
||
}
|
||
isAuthor := uid == post.UserID
|
||
isModerator := model.HasMinRole(role, model.RoleModerator)
|
||
if !isAuthor && !isModerator {
|
||
common.Error(c, http.StatusNotFound, "帖子不存在")
|
||
return
|
||
}
|
||
}
|
||
|
||
// 处理 shortcode：[zone:type:params] → HTML 占位符
|
||
if ctrl.shortcodeSvc != nil {
|
||
result := ctrl.shortcodeSvc.Process(post.Body)
|
||
post.Body = result.ProcessedBody
|
||
}
|
||
|
||
common.Ok(c, post)
|
||
}
|
||
|
||
// allowedImageExt 允许的图片扩展名
|
||
var allowedImageExt = map[string]bool{
|
||
".jpg": true, ".jpeg": true, ".png": true, ".gif": true, ".webp": true,
|
||
}
|
||
|
||
// UploadImage 上传帖子图片（需登录，multipart/form-data）
|
||
func (ctrl *PostController) UploadImage(c *gin.Context) {
|
||
uidObj, _ := c.Get("uid")
|
||
uid, ok := uidObj.(uint)
|
||
if !ok {
|
||
common.Error(c, http.StatusUnauthorized, "请先登录")
|
||
return
|
||
}
|
||
|
||
file, header, err := c.Request.FormFile("file")
|
||
if err != nil {
|
||
common.Error(c, http.StatusBadRequest, "请选择文件")
|
||
return
|
||
}
|
||
defer file.Close()
|
||
|
||
// 检查扩展名
|
||
ext := strings.ToLower(filepath.Ext(header.Filename))
|
||
if !allowedImageExt[ext] {
|
||
common.Error(c, http.StatusBadRequest, "仅支持 jpg / jpeg / png / gif / webp 格式")
|
||
return
|
||
}
|
||
|
||
// 限制 5MB
|
||
maxSize := int64(5 << 20)
|
||
if header.Size > maxSize {
|
||
common.Error(c, http.StatusBadRequest, "图片大小不能超过 5MB")
|
||
return
|
||
}
|
||
|
||
// 存储路径
|
||
storageDir := "storage/uploads/posts"
|
||
if err := os.MkdirAll(storageDir, 0755); err != nil {
|
||
common.Error(c, http.StatusInternalServerError, "存储初始化失败")
|
||
return
|
||
}
|
||
|
||
// 唯一文件名：uid_timestamp.ext
|
||
ts := time.Now().UnixMilli()
|
||
filename := fmt.Sprintf("%d_%d%s", uid, ts, ext)
|
||
savePath := filepath.Join(storageDir, filename)
|
||
|
||
if err := saveUploadedFile(file, savePath); err != nil {
|
||
common.Error(c, http.StatusInternalServerError, "保存图片失败")
|
||
return
|
||
}
|
||
|
||
url := "/uploads/posts/" + filename
|
||
common.VditorUploadOk(c, map[string]string{header.Filename: url})
|
||
}
|
||
|
||
// saveUploadedFile 将 multipart.File 写入目标路径
|
||
func saveUploadedFile(file multipart.File, dst string) error {
|
||
out, err := os.Create(dst)
|
||
if err != nil {
|
||
return err
|
||
}
|
||
defer out.Close()
|
||
|
||
// 限制读取 5MB 防止内存放大
|
||
buf := make([]byte, 32*1024)
|
||
for {
|
||
n, err := file.Read(buf)
|
||
if n > 0 {
|
||
if _, writeErr := out.Write(buf[:n]); writeErr != nil {
|
||
return writeErr
|
||
}
|
||
}
|
||
if err != nil {
|
||
break
|
||
}
|
||
}
|
||
return nil
|
||
}
|