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) 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.RedactMembersOnlyHTML(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)
}