147 lines
4.0 KiB
Go
147 lines
4.0 KiB
Go
package server
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import (
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"embed"
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"fmt"
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"io/fs"
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"io/ioutil"
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"net/http"
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"os"
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"strings"
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"github.com/gorilla/mux"
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"github.com/robertjanetzko/LegendsBrowser2/backend/model"
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"github.com/robertjanetzko/LegendsBrowser2/backend/templates"
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)
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type DfServerContext struct {
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world *model.DfWorld
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isLoading bool
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}
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type DfServer struct {
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router *mux.Router
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templates *templates.Template
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context *DfServerContext
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}
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func StartServer(world *model.DfWorld, static embed.FS) {
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srv := &DfServer{
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router: mux.NewRouter().StrictSlash(true),
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context: &DfServerContext{
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world: world,
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isLoading: false,
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},
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}
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srv.LoadTemplates()
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srv.RegisterWorldResourcePage("/entity/{id}", "entity.html", func(id int) any { return srv.context.world.Entities[id] })
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srv.RegisterWorldResourcePage("/hf/{id}", "hf.html", func(id int) any { return srv.context.world.HistoricalFigures[id] })
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srv.RegisterWorldResourcePage("/region/{id}", "region.html", func(id int) any { return srv.context.world.Regions[id] })
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srv.RegisterWorldResourcePage("/site/{id}", "site.html", func(id int) any { return srv.context.world.Sites[id] })
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srv.RegisterWorldResourcePage("/artifact/{id}", "artifact.html", func(id int) any { return srv.context.world.Artifacts[id] })
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srv.RegisterWorldPage("/", "eventTypes.html", func(p Parms) any { return srv.context.world.AllEventTypes() })
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srv.RegisterWorldPage("/events", "eventTypes.html", func(p Parms) any { return srv.context.world.AllEventTypes() })
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srv.RegisterWorldPage("/events/{type}", "eventType.html", func(p Parms) any { return srv.context.world.EventsOfType(p["type"]) })
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srv.router.PathPrefix("/load").Handler(loadHandler{server: srv})
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spa := spaHandler{staticFS: static, staticPath: "static", indexPath: "index.html"}
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srv.router.PathPrefix("/").Handler(spa)
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OpenBrowser("http://localhost:8080")
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fmt.Println("Serving at :8080")
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http.ListenAndServe(":8080", srv.router)
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}
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type spaHandler struct {
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staticFS embed.FS
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staticPath string
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indexPath string
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}
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func (h spaHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
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// get the absolute path to prevent directory traversal
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path := r.URL.Path
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// if err != nil {
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// // if we failed to get the absolute path respond with a 400 bad request and stop
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// http.Error(w, err.Error(), http.StatusBadRequest)
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// return
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// }
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// prepend the path with the path to the static directory
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path = h.staticPath + path
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_, err := h.staticFS.Open(path)
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if os.IsNotExist(err) {
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// file does not exist, serve index.html
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fmt.Println(path)
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index, err := h.staticFS.ReadFile(h.staticPath + "/" + h.indexPath)
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if err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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w.Header().Set("Content-Type", "text/html; charset=utf-8")
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w.WriteHeader(http.StatusAccepted)
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w.Write(index)
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return
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} else if err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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// get the subdirectory of the static dir
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statics, err := fs.Sub(h.staticFS, h.staticPath)
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if err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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// otherwise, use http.FileServer to serve the static dir
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http.FileServer(http.FS(statics)).ServeHTTP(w, r)
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}
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type loadHandler struct {
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server *DfServer
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}
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func (h loadHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
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path := r.URL.Query().Get("p")
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p := &paths{
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Current: path,
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}
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if p.Current == "" {
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p.Current = "."
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}
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if f, err := os.Stat(p.Current); err == nil {
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if f.IsDir() {
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p.List, err = ioutil.ReadDir(p.Current)
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if err != nil {
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fmt.Fprintln(w, err)
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fmt.Println(err)
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}
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err = h.server.templates.Render(w, "load.html", p)
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if err != nil {
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fmt.Fprintln(w, err)
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fmt.Println(err)
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}
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return
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} else {
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h.server.context.isLoading = true
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wrld, _ := model.Parse(p.Current)
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h.server.context.world = wrld
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http.Redirect(w, r, "/", http.StatusSeeOther)
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return
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}
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}
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http.Redirect(w, r, "/load", http.StatusSeeOther)
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}
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func isLegendsXml(f fs.FileInfo) bool {
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return strings.HasSuffix(f.Name(), "-legends.xml")
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}
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