mirror of
https://github.com/wgh136/nysoure.git
synced 2025-09-27 12:17:24 +00:00
108 lines
2.9 KiB
Go
108 lines
2.9 KiB
Go
package middleware
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import (
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"fmt"
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"nysoure/server/config"
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"nysoure/server/service"
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"nysoure/server/utils"
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"os"
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"path/filepath"
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"strconv"
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"strings"
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"github.com/gofiber/fiber/v3"
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)
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func FrontendMiddleware(c fiber.Ctx) error {
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if strings.HasPrefix(c.Path(), "/api") {
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return c.Next()
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}
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path := c.Path()
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file := "static" + path
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if path == "/robots.txt" {
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return handleRobotsTxt(c)
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} else if path == "/sitemap.xml" {
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return handleSiteMap(c)
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} else if path == "/rss.xml" {
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return handleRss(c)
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}
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if _, err := os.Stat(file); path == "/" || os.IsNotExist(err) {
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return serveIndexHtml(c)
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} else {
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return c.SendFile(file)
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}
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}
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func handleRobotsTxt(c fiber.Ctx) error {
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c.Set("Content-Type", "text/plain; charset=utf-8")
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c.Set("Cache-Control", "no-cache")
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c.Set("X-Robots-Tag", "noindex")
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return c.SendString("User-agent: *\nDisallow: /api/\nDisallow: /admin/\n")
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}
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func handleSiteMap(c fiber.Ctx) error {
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path := filepath.Join(utils.GetStoragePath(), utils.SiteMapFileName)
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return c.SendFile(path)
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}
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func handleRss(c fiber.Ctx) error {
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path := filepath.Join(utils.GetStoragePath(), utils.RssFileName)
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return c.SendFile(path)
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}
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func serveIndexHtml(c fiber.Ctx) error {
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data, err := os.ReadFile("static/index.html")
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if err != nil {
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return c.Status(fiber.StatusInternalServerError).SendString("Internal Server Error")
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}
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content := string(data)
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serverBaseURL := c.BaseURL()
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siteName := config.ServerName()
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description := config.ServerDescription()
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preview := serverBaseURL + "/icon-192.png"
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title := siteName
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url := serverBaseURL + c.Path()
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cfTurnstileSiteKey := config.CloudflareTurnstileSiteKey()
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siteInfo := config.SiteInfo()
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path := c.Path()
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if strings.HasPrefix(path, "/resources/") {
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idStr := strings.TrimPrefix(path, "/resources/")
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id, err := strconv.Atoi(idStr)
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if err == nil {
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r, err := service.GetResource(uint(id), "")
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if err == nil {
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if len(r.Images) > 0 {
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preview = fmt.Sprintf("%s/api/image/%d", serverBaseURL, r.Images[0].ID)
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}
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title = r.Title
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description = utils.ArticleToDescription(r.Article, 200)
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}
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}
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} else if strings.HasPrefix(path, "/user/") {
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username := strings.TrimPrefix(path, "/user/")
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u, err := service.GetUserByUsername(username)
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if err == nil {
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preview = fmt.Sprintf("/avatar/%d", u.ID)
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title = u.Username
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description = "User " + u.Username + "'s profile"
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}
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}
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content = strings.ReplaceAll(content, "{{SiteName}}", siteName)
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content = strings.ReplaceAll(content, "{{Description}}", description)
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content = strings.ReplaceAll(content, "{{Preview}}", preview)
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content = strings.ReplaceAll(content, "{{Title}}", title)
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content = strings.ReplaceAll(content, "{{Url}}", url)
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content = strings.ReplaceAll(content, "{{CFTurnstileSiteKey}}", cfTurnstileSiteKey)
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content = strings.ReplaceAll(content, "{{SiteInfo}}", siteInfo)
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c.Set("Content-Type", "text/html; charset=utf-8")
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return c.SendString(content)
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}
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