Victor_Jay
b8658712bb
- 启动时生成 AssetVersion（base36 时间戳），注入模板 {{.V}}
- 所有 JS/CSS 引用加 ?v={{.V}}，重启即刷新缓存
- 涉及前端、管理后台共 12 个模板文件
110 lines
3.2 KiB
Go
110 lines
3.2 KiB
Go
package common
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import (
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"fmt"
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"net/http"
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"net/url"
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"regexp"
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"strconv"
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"time"
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"metazone.cc/metalab/internal/model"
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"github.com/gin-gonic/gin"
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)
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// AssetVersion 静态资源版本号（服务启动时生成，重启即刷新缓存）
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var AssetVersion string
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func init() {
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AssetVersion = strconv.FormatInt(time.Now().Unix(), 36)
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}
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// mdImageRe 匹配 Markdown 图片语法 
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var mdImageRe = regexp.MustCompile(`!\[.*?\]\((.*?)\)`)
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// ExtractFirstImage 从 Markdown 正文提取第一张图片 URL
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func ExtractFirstImage(md string) string {
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match := mdImageRe.FindStringSubmatch(md)
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if len(match) > 1 {
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return match[1]
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}
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return ""
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}
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// BuildPageData 构建页面模板数据，自动注入登录状态、站点信息与 CSRF token
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func BuildPageData(c *gin.Context, extra gin.H) gin.H {
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data := gin.H{}
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for k, v := range extra {
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data[k] = v
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}
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if username, exists := c.Get("username"); exists {
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data["IsLoggedIn"] = true
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data["Username"] = username
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}
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// 注入 CSRF token（由 CSRF 中间件设置到上下文中）
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if token, exists := c.Get("csrf_token"); exists {
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data["CSRFToken"] = token
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}
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// 注入站点信息（由 InjectSiteInfo 中间件设置）
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injectSiteInfo(c, data)
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// 注入管理入口权限（moderator 及以上可看到页脚管理面板链接）
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if role, exists := c.Get("role"); exists {
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data["CanAccessAdmin"] = model.HasMinRole(role.(string), model.RoleModerator)
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data["IsOwner"] = model.HasMinRole(role.(string), model.RoleOwner)
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}
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// 注入维护状态
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if isMaintenance, exists := c.Get("is_maintenance"); exists {
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data["IsMaintenance"] = isMaintenance
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}
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// 注入静态资源版本号
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data["V"] = AssetVersion
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return data
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}
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// BuildAdminPageData 构建管理后台模板数据
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// 额外注入 UID、Role、CanManageUsers、CurrentPath 等权限信息
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func BuildAdminPageData(c *gin.Context, extra gin.H) gin.H {
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data := BuildPageData(c, extra)
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data["IsAdmin"] = true
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data["CurrentPath"] = c.Request.URL.Path
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if uid, exists := c.Get("uid"); exists {
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data["UID"] = uid
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}
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if role, exists := c.Get("role"); exists {
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roleStr := role.(string)
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data["Role"] = roleStr
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if name, ok := model.RoleDisplayNames[roleStr]; ok {
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data["RoleDisplayName"] = name
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} else {
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data["RoleDisplayName"] = roleStr
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}
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data["CanManageUsers"] = model.HasMinRole(roleStr, model.RoleAdmin)
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data["CanManageAudits"] = model.HasMinRole(roleStr, model.RoleAdmin)
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data["CanManageSettings"] = model.HasMinRole(roleStr, model.RoleOwner)
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data["IsOwner"] = model.HasMinRole(roleStr, model.RoleOwner)
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}
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return data
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}
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// RedirectToLogin 重定向到登录页，携带当前页面路径作为 redirect 参数
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func RedirectToLogin(c *gin.Context) {
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returnURL := url.QueryEscape(c.Request.URL.Path)
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if c.Request.URL.RawQuery != "" {
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returnURL = url.QueryEscape(c.Request.URL.Path + "?" + c.Request.URL.RawQuery)
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}
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c.Redirect(http.StatusFound, fmt.Sprintf("/auth/login?redirect=%s", returnURL))
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c.Abort()
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}
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// injectSiteInfo 从 context 注入站点展示信息
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func injectSiteInfo(c *gin.Context, data gin.H) {
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if framework, exists := c.Get("site_framework"); exists {
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data["Framework"] = framework
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}
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if copyrightStart, exists := c.Get("site_copyright_start"); exists {
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data["CopyrightStart"] = copyrightStart
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}
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}
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