ari/arimelody.me
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

caching improvements

Browse source 
Signed-off-by: ari melody <ari@arimelody.me>
This commit is contained in:
ari melody 2024-04-17 17:08:53 +01:00
parent c5a2491627
commit 0b401c058a
4 changed files with 94 additions and 55 deletions
Download patch file Download diff file Expand all files Collapse all files

73
main.go
View file

@ -19,6 +19,7 @@ import (
)
const PORT int = 8080
var LAST_MODIFIED = time.Now()
var mime_types = map[string]string{
"css": "text/css; charset=utf-8",
@ -73,6 +74,10 @@ func handle_request(writer http.ResponseWriter, req *http.Request) {
// }
// }
writer.Header().Set("Server", "arimelody.me")
writer.Header().Set("Cache-Control", "max-age=86400")
writer.Header().Set("Last-Modified", LAST_MODIFIED.Format(http.TimeFormat))
code := func(writer http.ResponseWriter, req *http.Request) int {
// var root *template.Template
// if hx_request {
@ -84,19 +89,19 @@ func handle_request(writer http.ResponseWriter, req *http.Request) {
var root = template.Must(base_template.Clone())
if req.URL.Path == "/" {
return index_handler(writer, root)
return handle_index(writer, req, root)
}
if uri == "/music" || uri == "/music/" {
return music_directory_handler(writer, root)
return handle_music(writer, req, root)
}
if strings.HasPrefix(uri, "/music/") {
return music_gateway_handler(writer, req, root)
return handle_music_gateway(writer, req, root)
}
if strings.HasPrefix(uri, "/admin") {
return admin_handler(writer, req, root)
return handle_admin(writer, req, root)
}
if strings.HasPrefix(uri, "/api") {
@ -109,7 +114,12 @@ func handle_request(writer http.ResponseWriter, req *http.Request) {
log_request(req, code, start_time)
}
func index_handler(writer http.ResponseWriter, root *template.Template) int {
func handle_index(writer http.ResponseWriter, req *http.Request, root *template.Template) int {
if !was_modified(req, LAST_MODIFIED) {
writer.WriteHeader(304)
return 304
}
index_template := template.Must(root.ParseFiles("views/index.html"))
err := index_template.Execute(writer, nil)
if err != nil {
@ -119,7 +129,12 @@ func index_handler(writer http.ResponseWriter, root *template.Template) int {
return 200
}
func music_directory_handler(writer http.ResponseWriter, root *template.Template) int {
func handle_music(writer http.ResponseWriter, req *http.Request, root *template.Template) int {
if !was_modified(req, LAST_MODIFIED) {
writer.WriteHeader(304)
return 304
}
music_template := template.Must(root.ParseFiles("views/music.html"))
music := music.QueryAllMusic()
err := music_template.Execute(writer, music)
@ -130,7 +145,12 @@ func music_directory_handler(writer http.ResponseWriter, root *template.Template
return 200
}
func music_gateway_handler(writer http.ResponseWriter, req *http.Request, root *template.Template) int {
func handle_music_gateway(writer http.ResponseWriter, req *http.Request, root *template.Template) int {
if !was_modified(req, LAST_MODIFIED) {
writer.WriteHeader(304)
return 304
}
id := req.URL.Path[len("/music/"):]
// http.Redirect(writer, req, "https://mellodoot.com/music/"+title, 302)
// return
@ -147,7 +167,12 @@ func music_gateway_handler(writer http.ResponseWriter, req *http.Request, root *
return 200
}
func admin_handler(writer http.ResponseWriter, req *http.Request, root *template.Template) int {
func handle_admin(writer http.ResponseWriter, req *http.Request, root *template.Template) int {
if !was_modified(req, LAST_MODIFIED) {
writer.WriteHeader(304)
return 304
}
admin_template := template.Must(root.ParseFiles("views/admin.html"))
err := admin_template.Execute(writer, nil)
if err != nil {
@ -166,23 +191,13 @@ func static_handler(writer http.ResponseWriter, req *http.Request, root *templat
return handle_not_found(writer, req, root)
}
if len(req.Header["If-Modified-Since"]) > 0 && req.Header["If-Modified-Since"][0] != "" {
if_modified_since_time, err := time.Parse(http.TimeFormat, req.Header["If-Modified-Since"][0])
if err != nil {
http.Error(writer, "400 bad request", http.StatusBadRequest)
return 400
}
if req.Header["If-Modified-Since"][0] == info.ModTime().Format(http.TimeFormat) || if_modified_since_time.After(info.ModTime()) {
writer.WriteHeader(304) // not modified
return 304
}
if !was_modified(req, info.ModTime()) {
writer.WriteHeader(304)
return 304
}
// set other nice headers
writer.Header().Set("Cache-Control", "max-age=86400")
// set Last-Modified to file modification date
writer.Header().Set("Last-Modified", info.ModTime().Format(http.TimeFormat))
// Last-Modified: <day-name>, <day> <month> <year> <hour>:<minute>:<second> GMT
// Last-Modified: Wed, 21 Oct 2015 07:28:00 GMT
// read the file
body, err := os.ReadFile(filename)
@ -218,6 +233,20 @@ func handle_not_found(writer http.ResponseWriter, req *http.Request, root *templ
return 404
}
func was_modified(req *http.Request, last_modified time.Time) bool {
if len(req.Header["If-Modified-Since"]) == 0 || len(req.Header["If-Modified-Since"][0]) == 0 {
return true
}
request_time, err := time.Parse(http.TimeFormat, req.Header["If-Modified-Since"][0])
if err != nil {
return true
}
if request_time.Before(last_modified) {
return true
}
return false
}
func parse_markdown(md []byte) []byte {
extensions := parser.CommonExtensions | parser.AutoHeadingIDs | parser.NoEmptyLineBeforeBlock
p := parser.NewWithExtensions(extensions)