package middleware import ( "github.com/cloudreve/Cloudreve/v3/bootstrap" model "github.com/cloudreve/Cloudreve/v3/models" "github.com/cloudreve/Cloudreve/v3/pkg/util" "github.com/gin-gonic/gin" "io/ioutil" "net/http" "strings" ) // FrontendFileHandler 前端静态文件处理 func FrontendFileHandler() gin.HandlerFunc { ignoreFunc := func(c *gin.Context) { c.Next() } if bootstrap.StaticFS == nil { return ignoreFunc } // 读取index.html file, err := bootstrap.StaticFS.Open("/index.html") if err != nil { util.Log().Warning("静态文件[index.html]不存在,可能会影响首页展示") return ignoreFunc } fileContentBytes, err := ioutil.ReadAll(file) if err != nil { util.Log().Warning("静态文件[index.html]读取失败,可能会影响首页展示") return ignoreFunc } fileContent := string(fileContentBytes) fileServer := http.FileServer(bootstrap.StaticFS) return func(c *gin.Context) { path := c.Request.URL.Path // API 跳过 if strings.HasPrefix(path, "/api") || strings.HasPrefix(path, "/custom") || strings.HasPrefix(path, "/dav") || path == "/manifest.json" { c.Next() return } // 不存在的路径和index.html均返回index.html if (path == "/index.html") || (path == "/") || !bootstrap.StaticFS.Exists("/", path) { // 读取、替换站点设置 options := model.GetSettingByNames("siteName", "siteKeywords", "siteScript", "pwa_small_icon") finalHTML := util.Replace(map[string]string{ "{siteName}": options["siteName"], "{siteDes}": options["siteDes"], "{siteScript}": options["siteScript"], "{pwa_small_icon}": options["pwa_small_icon"], }, fileContent) c.Header("Content-Type", "text/html") c.String(200, finalHTML) c.Abort() return } if path == "/service-worker.js" { c.Header("Cache-Control", "public, no-cache") } // 存在的静态文件 fileServer.ServeHTTP(c.Writer, c.Request) c.Abort() } }