114 lines
3.1 KiB
Go
114 lines
3.1 KiB
Go
package music
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import (
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"fmt"
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"net/http"
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"os"
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"path/filepath"
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"strings"
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"arimelody.me/arimelody.me/admin"
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"arimelody.me/arimelody.me/global"
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)
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// HTTP HANDLER METHODS
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func ServeCatalog() http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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releases := []Release{}
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authorised := r.Context().Value("role") != nil && r.Context().Value("role") == "admin"
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for _, release := range Releases {
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if !release.IsReleased() && !authorised {
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continue
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}
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releases = append(releases, release)
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}
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global.ServeTemplate("music.html", Releases).ServeHTTP(w, r)
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})
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}
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func ServeGateway() http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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if r.URL.Path == "/" {
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http.Redirect(w, r, "/music", http.StatusPermanentRedirect)
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return
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}
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id := r.URL.Path[1:]
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release := GetRelease(id)
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if release == nil {
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http.NotFound(w, r)
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return
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}
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// only allow authorised users to view unreleased releases
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authorised := r.Context().Value("role") != nil && r.Context().Value("role") == "admin"
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if !release.IsReleased() && !authorised {
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admin.MustAuthorise(ServeGateway()).ServeHTTP(w, r)
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return
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}
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lrw := global.LoggingResponseWriter{w, http.StatusOK}
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global.ServeTemplate("music-gateway.html", release).ServeHTTP(&lrw, r)
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if lrw.Code != http.StatusOK {
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fmt.Printf("Error loading music gateway for %s\n", id)
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return
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}
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})
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}
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func ServeArtwork() http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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if r.URL.Path == "/" {
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http.NotFound(w, r)
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return
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}
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if !strings.HasSuffix(r.URL.Path, ".png") {
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http.NotFound(w, r)
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return
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}
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releaseID := r.URL.Path[1:len(r.URL.Path) - 4]
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var release = GetRelease(releaseID)
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if release == nil {
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http.NotFound(w, r)
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return
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}
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// only allow authorised users to view unreleased releases
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authorised := r.Context().Value("role") != nil && r.Context().Value("role") == "admin"
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if !release.IsReleased() && !authorised {
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admin.MustAuthorise(ServeArtwork()).ServeHTTP(w, r)
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return
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}
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fp := filepath.Join("data", "music-artwork", releaseID + ".png")
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info, err := os.Stat(fp)
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if err != nil {
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if os.IsNotExist(err) {
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http.NotFound(w, r)
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return
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}
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}
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length := info.Size()
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file, err := os.Open(fp)
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if err != nil {
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http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
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return
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}
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defer file.Close()
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var bytes = make([]byte, length)
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file.Read(bytes)
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w.Header().Add("Content-Type", "image/png")
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w.WriteHeader(http.StatusOK)
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w.Write(bytes)
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})
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}
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