diff --git a/embed_static/embed.go b/embed_static/embed.go index c41c1d7..d632e97 100644 --- a/embed_static/embed.go +++ b/embed_static/embed.go @@ -14,9 +14,10 @@ import ( var staticFS embed.FS var ( - spaTitleRe = regexp.MustCompile(`(?s).*?`) - spaBrandTitleFn func() string - spaBrandJSONFn func() []byte // 站点品牌 JSON，注入 window.__J13_BRANDING__ + spaTitleRe = regexp.MustCompile(`(?s).*?`) + spaBrandTitleFn func() string + spaBrandJSONFn func() []byte // 站点品牌 JSON，注入 window.__J13_BRANDING__ + spaBrandFaviconFn func() string // 站点 Favicon URL，注入 ) // SetSPADocumentTitle 注册站点标题提供者，ServeSPA 会注入到入口 HTML，避免刷新闪烁 @@ -29,6 +30,11 @@ func SetSPABrandingJSON(fn func() []byte) { spaBrandJSONFn = fn } +// SetSPAFaviconURL 注册 Favicon URL 提供者，注入到入口 HTML 的 +func SetSPAFaviconURL(fn func() string) { + spaBrandFaviconFn = fn +} + // SetupEmbed 配置内嵌资源：React SPA 静态资源 func SetupEmbed(r *gin.Engine) error { if sub, err := fs.Sub(staticFS, "static/spa/assets"); err == nil { diff --git a/embed_static/spa_meta.go b/embed_static/spa_meta.go index eec8cb1..b597aa0 100644 --- a/embed_static/spa_meta.go +++ b/embed_static/spa_meta.go @@ -62,13 +62,17 @@ func applySPAPageMeta(data []byte, meta *SPAPageMeta) []byte { data = spaTitleRe.ReplaceAll(data, []byte(""+escaped+"")) } - // —— 静态 SEO HTML（meta / OG / JSON-LD），紧跟 ，不经 JS —— + // —— 静态 SEO HTML（meta / OG / JSON-LD / favicon），紧跟 ，不经 JS —— var seo strings.Builder writeMeta(&seo, "description", meta.Description) writeMeta(&seo, "keywords", meta.Keywords) if canonical := strings.TrimSpace(meta.Canonical); canonical != "" { seo.WriteString(``) } + if favicon := spaFaviconHref(); favicon != "" { + seo.WriteString(``) + seo.WriteString(``) + } robots := strings.TrimSpace(meta.Robots) if robots != "" { writeMeta(&seo, "robots", robots) @@ -187,3 +191,11 @@ func firstNonEmpty(vals ...string) string { } return "" } + +// spaFaviconHref 当前站点配置的 Favicon（相对或绝对 URL） +func spaFaviconHref() string { + if spaBrandFaviconFn == nil { + return "" + } + return strings.TrimSpace(spaBrandFaviconFn()) +} diff --git a/handler/seo.go b/handler/seo.go index c6b3243..5f587a4 100644 --- a/handler/seo.go +++ b/handler/seo.go @@ -2,18 +2,16 @@ package handler import ( "encoding/json" - "fmt" - "html" "net/http" "regexp" "strconv" "strings" "time" - "github.com/gin-gonic/gin" "git.iioio.com/freefire/jiang13-forum/embed_static" "git.iioio.com/freefire/jiang13-forum/model" "git.iioio.com/freefire/jiang13-forum/service" + "github.com/gin-gonic/gin" ) var ( @@ -50,6 +48,18 @@ func (h *Handlers) RobotsTxt(c *gin.Context) { c.Data(http.StatusOK, "text/plain; charset=utf-8", []byte(b.String())) } +// FaviconICO 约定路径 /favicon.ico：有品牌图标则 302 到实际上传 URL，否则 404 +func (h *Handlers) FaviconICO(c *gin.Context) { + href := strings.TrimSpace(h.Settings.SiteBranding().Favicon) + if href == "" { + c.Status(http.StatusNotFound) + return + } + // 相对路径保持站内跳转；绝对 URL 也可 Redirect + c.Header("Cache-Control", "public, max-age=86400") + c.Redirect(http.StatusFound, href) +} + // SitemapXML 公开页面站点地图 func (h *Handlers) SitemapXML(c *gin.Context) { base := h.publicBaseURL(c) @@ -147,9 +157,9 @@ func (h *Handlers) SitemapXML(c *gin.Context) { c.Data(http.StatusOK, "application/xml; charset=utf-8", []byte(b.String())) } -// ServePublicSPA 公开页入口： -// - 普通用户：干净 SPA + meta（无正文预渲染，避免刷新闪屏） -// - 搜索/社交爬虫：服务端 HTML（动态渲染） +// ServePublicSPA 公开页入口：人机统一响应，不再按 User-Agent 分叉。 +// - 首页 / 板块：完整首屏 SSR（serveFeedDocument） +// - 其余公开页：干净 SPA + meta // - 伪静态：按后台配置的后缀做规范 URL，非规范路径 301 func (h *Handlers) ServePublicSPA(c *gin.Context) { path := c.Request.URL.Path @@ -181,11 +191,6 @@ func (h *Handlers) ServePublicSPA(c *gin.Context) { } } - isBot := service.IsSEOCrawler(c.Request.UserAgent()) - if isBot { - c.Header("Vary", "User-Agent") - } - // 板块首页（含可选伪静态后缀） if bm := permalink.MatchBoardPath(path); bm.OK { if bm.NeedsCanonicalRedirect(path) { @@ -194,7 +199,7 @@ func (h *Handlers) ServePublicSPA(c *gin.Context) { } board, err := h.Board.GetByID(bm.ID) if err != nil { - h.serveNotFound(c, base, siteName, siteKeywords, path, isBot) + h.serveNotFound(c, base, siteName, siteKeywords, path) return } desc := strings.TrimSpace(board.Description) @@ -209,7 +214,6 @@ func (h *Handlers) ServePublicSPA(c *gin.Context) { OGType: "website", OGImage: defaultImage, }, siteName, siteKeywords) - // 板块首页：真人与爬虫共用完整首屏 HTML h.serveFeedDocument(c, meta, board.ID) return } @@ -222,14 +226,10 @@ func (h *Handlers) ServePublicSPA(c *gin.Context) { } post, err := h.Post.FindByID(pm.ID) if err != nil || !service.CanViewPost(post, h.currentUserID(c), h.isAdmin(c)) { - h.serveNotFound(c, base, siteName, siteKeywords, path, isBot) + h.serveNotFound(c, base, siteName, siteKeywords, path) return } postKeywords := service.JoinSEOKeywords(post.Board.Name, siteKeywords) - if isBot { - c.Data(http.StatusOK, "text/html; charset=utf-8", []byte(h.botPostHTML(base, siteName, defaultImage, postKeywords, post))) - return - } embed_static.ServeSPAWithMeta(c, attachSiteSEO(h.postPageMeta(base, siteName, defaultImage, post), siteName, postKeywords)) return } @@ -242,11 +242,7 @@ func (h *Handlers) ServePublicSPA(c *gin.Context) { } user, err := h.User.GetByID(um.ID) if err != nil || user.Banned { - h.serveNotFound(c, base, siteName, siteKeywords, path, isBot) - return - } - if isBot { - c.Data(http.StatusOK, "text/html; charset=utf-8", []byte(h.botUserHTML(base, siteName, defaultImage, siteKeywords, user))) + h.serveNotFound(c, base, siteName, siteKeywords, path) return } embed_static.ServeSPAWithMeta(c, attachSiteSEO(h.userPageMeta(base, siteName, defaultImage, user), siteName, siteKeywords)) @@ -261,7 +257,7 @@ func (h *Handlers) ServePublicSPA(c *gin.Context) { } page, err := h.SitePage.GetBySlug(pg.Slug, h.isAdmin(c)) if err != nil { - h.serveNotFound(c, base, siteName, siteKeywords, path, isBot) + h.serveNotFound(c, base, siteName, siteKeywords, path) return } desc := service.ExcerptFromHTML(page.Content, seoDescMax) @@ -273,18 +269,13 @@ func (h *Handlers) ServePublicSPA(c *gin.Context) { OGType: "article", OGImage: defaultImage, }, siteName, siteKeywords) - if isBot { - body := fmt.Sprintf(`

%s

%s
`, html.EscapeString(page.Title), page.Content) - c.Data(http.StatusOK, "text/html; charset=utf-8", []byte(renderBotHTML(meta, body))) - return - } embed_static.ServeSPAWithMeta(c, meta) return } // 未知路径 → 404 if !isKnownPublicPath(path) { - h.serveNotFound(c, base, siteName, siteKeywords, path, isBot) + h.serveNotFound(c, base, siteName, siteKeywords, path) return } @@ -297,12 +288,7 @@ func (h *Handlers) ServePublicSPA(c *gin.Context) { embed_static.ServeSPAWithMeta(c, meta) } -func (h *Handlers) serveNotFound(c *gin.Context, base, siteName, keywords, path string, isBot bool) { - if isBot { - c.Header("Vary", "User-Agent") - c.Data(http.StatusNotFound, "text/html; charset=utf-8", []byte(botNotFoundHTML(base, siteName, keywords, path))) - return - } +func (h *Handlers) serveNotFound(c *gin.Context, base, siteName, keywords, path string) { embed_static.ServeSPAWithMeta(c, notFoundPageMeta(base, siteName, keywords, path)) } diff --git a/handler/seo_bot.go b/handler/seo_bot.go deleted file mode 100644 index c633136..0000000 --- a/handler/seo_bot.go +++ /dev/null @@ -1,158 +0,0 @@ -package handler - -import ( - "fmt" - "html" - "strings" - "time" - - "git.iioio.com/freefire/jiang13-forum/embed_static" - "git.iioio.com/freefire/jiang13-forum/model" - "git.iioio.com/freefire/jiang13-forum/service" -) - -// 爬虫专用伪静态 HTML（无 SPA；仅 User-Agent 命中爬虫时返回，避免用户刷新闪屏） - -func renderBotHTML(meta *embed_static.SPAPageMeta, bodyInner string) string { - if meta == nil { - meta = &embed_static.SPAPageMeta{} - } - ogType := strings.TrimSpace(meta.OGType) - if ogType == "" { - ogType = "website" - } - locale := strings.TrimSpace(meta.Locale) - if locale == "" { - locale = "zh_CN" - } - var b strings.Builder - b.WriteString("") - b.WriteString("") - b.WriteString("") - writeEscapedTag(&b, "title", meta.Title) - writeEscapedMeta(&b, "name", "description", meta.Description) - writeEscapedMeta(&b, "name", "keywords", meta.Keywords) - if meta.Robots != "" { - writeEscapedMeta(&b, "name", "robots", meta.Robots) - } - if meta.Canonical != "" { - b.WriteString(``) - } - writeEscapedMeta(&b, "property", "og:type", ogType) - writeEscapedMeta(&b, "property", "og:site_name", meta.SiteName) - writeEscapedMeta(&b, "property", "og:locale", locale) - writeEscapedMeta(&b, "property", "og:title", meta.Title) - writeEscapedMeta(&b, "property", "og:description", meta.Description) - writeEscapedMeta(&b, "property", "og:url", meta.Canonical) - writeEscapedMeta(&b, "property", "og:image", meta.OGImage) - card := "summary" - if strings.TrimSpace(meta.OGImage) != "" { - card = "summary_large_image" - } - writeEscapedMeta(&b, "name", "twitter:card", card) - writeEscapedMeta(&b, "name", "twitter:title", meta.Title) - writeEscapedMeta(&b, "name", "twitter:description", meta.Description) - writeEscapedMeta(&b, "name", "twitter:image", meta.OGImage) - if meta.JSONLD != "" { - b.WriteString(``) - } - b.WriteString(``) - b.WriteString("") - b.WriteString(bodyInner) - b.WriteString(`

← 返回首页

`) - b.WriteString("") - return b.String() -} - -func writeEscapedTag(b *strings.Builder, tag, text string) { - text = strings.TrimSpace(text) - if text == "" { - return - } - b.WriteString("<" + tag + ">" + html.EscapeString(text) + "") -} - -func writeEscapedMeta(b *strings.Builder, attr, key, content string) { - content = strings.TrimSpace(content) - if content == "" { - return - } - b.WriteString("") -} - -func (h *Handlers) botBoardHTML(meta *embed_static.SPAPageMeta, board model.Board) string { - desc := strings.TrimSpace(board.Description) - if desc == "" { - desc = meta.Description - } - body := fmt.Sprintf(`

%s

%s

`, - html.EscapeString(board.Name), - html.EscapeString(desc), - ) - return renderBotHTML(meta, body) -} - -func (h *Handlers) botHomeHTML(meta *embed_static.SPAPageMeta, brand service.SiteBranding) string { - name := strings.TrimSpace(brand.Name) - if name == "" { - name = "姜十三论坛" - } - intro := brand.MetaDescription() - if intro == "" { - intro = brand.Slogan - } - var body strings.Builder - body.WriteString("

" + html.EscapeString(name) + "

") - if intro != "" { - body.WriteString("

" + html.EscapeString(intro) + "

") - } - body.WriteString(`

浏览项目

`) - return renderBotHTML(meta, body.String()) -} - -func (h *Handlers) botPostHTML(base, siteName, defaultImage, keywords string, post *model.Post) string { - meta := attachSiteSEO(h.postPageMeta(base, siteName, defaultImage, post), siteName, keywords) - content := service.SanitizePostHTML(service.RedactGatedPostHTML(post.Content)) - author := service.DisplayName(&post.User) - var body strings.Builder - body.WriteString("
") - body.WriteString("

" + html.EscapeString(post.Title) + "

") - body.WriteString(`

`) - body.WriteString(html.EscapeString(author)) - body.WriteString(" · ") - body.WriteString(html.EscapeString(post.CreatedAt.Local().Format("2006-01-02 15:04"))) - if post.Board.Name != "" { - body.WriteString(" · ") - body.WriteString(html.EscapeString(post.Board.Name)) - } - body.WriteString("

") - body.WriteString(content) - body.WriteString("
") - return renderBotHTML(meta, body.String()) -} - -func (h *Handlers) botUserHTML(base, siteName, defaultImage, keywords string, user *model.User) string { - meta := attachSiteSEO(h.userPageMeta(base, siteName, defaultImage, user), siteName, keywords) - name := service.DisplayName(user) - sig := strings.TrimSpace(user.Signature) - var body strings.Builder - body.WriteString("

" + html.EscapeString(name) + " 的主页

") - if sig != "" { - body.WriteString("

" + html.EscapeString(sig) + "

") - } - body.WriteString(fmt.Sprintf(`

加入于 %s

`, html.EscapeString(user.CreatedAt.Local().Format(time.DateOnly)))) - return renderBotHTML(meta, body.String()) -} - -func botNotFoundHTML(base, siteName, keywords, path string) string { - meta := notFoundPageMeta(base, siteName, keywords, path) - body := `

页面不存在

您访问的页面不存在或已删除。

` - return renderBotHTML(meta, body) -} diff --git a/router/router.go b/router/router.go index a50d0c7..0564f26 100644 --- a/router/router.go +++ b/router/router.go @@ -57,6 +57,9 @@ func Setup(cfg *config.Config) (*gin.Engine, error) { } return b }) + embed_static.SetSPAFaviconURL(func() string { + return settingsSvc.SiteBranding().Favicon + }) authSvc := service.NewAuthService(cfg.JWTSecret, filter, settingsSvc) userSvc := service.NewUserService(filter, settingsSvc) boardSvc := service.NewBoardService() @@ -114,9 +117,10 @@ func Setup(cfg *config.Config) (*gin.Engine, error) { // 健康检查（容器 / 负载均衡探活） r.GET("/health", h.APIHealth) - // SEO：抓取规则与站点地图 + // SEO：抓取规则、站点地图、约定 favicon r.GET("/robots.txt", h.RobotsTxt) r.GET("/sitemap.xml", h.SitemapXML) + r.GET("/favicon.ico", h.FaviconICO) // OIDC Provider（Gitea 等外部站点 SSO） r.GET("/.well-known/openid-configuration", h.OIDCDiscovery) diff --git a/service/crawler.go b/service/crawler.go index d3ce1ed..2403c24 100644 --- a/service/crawler.go +++ b/service/crawler.go @@ -40,7 +40,7 @@ var seoCrawlerTokens = []string{ "oai-searchbot", } -// IsSEOCrawler 是否为需要服务端 HTML 的爬虫 / 预览 bot（动态渲染） +// IsSEOCrawler 是否为搜索引擎 / 社交预览类爬虫（供访问监控打 is_bot；公开页不再按 UA 分叉 HTML） func IsSEOCrawler(userAgent string) bool { ua := strings.ToLower(strings.TrimSpace(userAgent)) if ua == "" {