401 lines
8.0 KiB
Go
401 lines
8.0 KiB
Go
/*
|
|
Copyright © 2023 Seednode <seednode@seedno.de>
|
|
*/
|
|
|
|
package cmd
|
|
|
|
import (
|
|
"bytes"
|
|
"errors"
|
|
"fmt"
|
|
"io"
|
|
"net"
|
|
"net/http"
|
|
"os"
|
|
"path/filepath"
|
|
"regexp"
|
|
"runtime"
|
|
"strconv"
|
|
"strings"
|
|
"sync"
|
|
"time"
|
|
|
|
"github.com/julienschmidt/httprouter"
|
|
"github.com/yosssi/gohtml"
|
|
"seedno.de/seednode/roulette/types"
|
|
"seedno.de/seednode/roulette/types/audio"
|
|
"seedno.de/seednode/roulette/types/flash"
|
|
"seedno.de/seednode/roulette/types/images"
|
|
"seedno.de/seednode/roulette/types/text"
|
|
"seedno.de/seednode/roulette/types/video"
|
|
)
|
|
|
|
const (
|
|
logDate string = `2006-01-02T15:04:05.000-07:00`
|
|
sourcePrefix string = `/source`
|
|
mediaPrefix string = `/view`
|
|
RedirectStatusCode int = http.StatusSeeOther
|
|
timeout time.Duration = 10 * time.Second
|
|
)
|
|
|
|
func serveStaticFile(paths []string, cache *fileCache) httprouter.Handle {
|
|
return func(w http.ResponseWriter, r *http.Request, p httprouter.Params) {
|
|
path := strings.TrimPrefix(r.URL.Path, sourcePrefix)
|
|
|
|
prefixedFilePath, err := stripQueryParams(path)
|
|
if err != nil {
|
|
fmt.Println(err)
|
|
|
|
serverError(w, r, nil)
|
|
|
|
return
|
|
}
|
|
|
|
filePath, err := filepath.EvalSymlinks(strings.TrimPrefix(prefixedFilePath, sourcePrefix))
|
|
if err != nil {
|
|
fmt.Println(err)
|
|
|
|
serverError(w, r, nil)
|
|
|
|
return
|
|
}
|
|
|
|
if !pathIsValid(filePath, paths) {
|
|
notFound(w, r, filePath)
|
|
|
|
return
|
|
}
|
|
|
|
exists, err := fileExists(filePath)
|
|
if err != nil {
|
|
fmt.Println(err)
|
|
|
|
serverError(w, r, nil)
|
|
|
|
return
|
|
}
|
|
|
|
if !exists {
|
|
notFound(w, r, filePath)
|
|
|
|
return
|
|
}
|
|
|
|
startTime := time.Now()
|
|
|
|
buf, err := os.ReadFile(filePath)
|
|
if err != nil {
|
|
fmt.Println(err)
|
|
|
|
serverError(w, r, nil)
|
|
|
|
return
|
|
}
|
|
|
|
w.Write(buf)
|
|
|
|
fileSize := humanReadableSize(len(buf))
|
|
|
|
if Russian {
|
|
err = os.Remove(filePath)
|
|
if err != nil {
|
|
fmt.Println(err)
|
|
|
|
serverError(w, r, nil)
|
|
|
|
return
|
|
}
|
|
|
|
if Cache {
|
|
cache.remove(filePath)
|
|
}
|
|
}
|
|
|
|
if Verbose {
|
|
fmt.Printf("%s | Served %s (%s) to %s in %s\n",
|
|
startTime.Format(logDate),
|
|
filePath,
|
|
fileSize,
|
|
realIP(r),
|
|
time.Since(startTime).Round(time.Microsecond),
|
|
)
|
|
}
|
|
}
|
|
}
|
|
|
|
func serveRoot(paths []string, regexes *regexes, cache *fileCache, formats *types.Types) httprouter.Handle {
|
|
return func(w http.ResponseWriter, r *http.Request, p httprouter.Params) {
|
|
refererUri, err := stripQueryParams(refererToUri(r.Referer()))
|
|
if err != nil {
|
|
fmt.Println(err)
|
|
|
|
serverError(w, r, nil)
|
|
|
|
return
|
|
}
|
|
|
|
strippedRefererUri := strings.TrimPrefix(refererUri, mediaPrefix)
|
|
|
|
filters := &filters{
|
|
included: splitQueryParams(r.URL.Query().Get("include"), regexes),
|
|
excluded: splitQueryParams(r.URL.Query().Get("exclude"), regexes),
|
|
}
|
|
|
|
sortOrder := sortOrder(r)
|
|
|
|
_, refreshInterval := refreshInterval(r)
|
|
|
|
var filePath string
|
|
|
|
if refererUri != "" {
|
|
filePath, err = nextFile(strippedRefererUri, sortOrder, regexes, formats)
|
|
if err != nil {
|
|
fmt.Println(err)
|
|
|
|
serverError(w, r, nil)
|
|
|
|
return
|
|
}
|
|
}
|
|
|
|
loop:
|
|
for timeout := time.After(timeout); ; {
|
|
select {
|
|
case <-timeout:
|
|
break loop
|
|
default:
|
|
}
|
|
|
|
if filePath != "" {
|
|
break loop
|
|
}
|
|
|
|
filePath, err = newFile(paths, filters, sortOrder, regexes, cache, formats)
|
|
switch {
|
|
case err != nil && err == ErrNoMediaFound:
|
|
notFound(w, r, filePath)
|
|
|
|
return
|
|
case err != nil:
|
|
fmt.Println(err)
|
|
|
|
serverError(w, r, nil)
|
|
|
|
return
|
|
}
|
|
}
|
|
|
|
queryParams := generateQueryParams(filters, sortOrder, refreshInterval)
|
|
|
|
newUrl := fmt.Sprintf("http://%s%s%s",
|
|
r.Host,
|
|
preparePath(filePath),
|
|
queryParams,
|
|
)
|
|
http.Redirect(w, r, newUrl, RedirectStatusCode)
|
|
}
|
|
}
|
|
|
|
func serveMedia(paths []string, regexes *regexes, formats *types.Types) httprouter.Handle {
|
|
return func(w http.ResponseWriter, r *http.Request, p httprouter.Params) {
|
|
filters := &filters{
|
|
included: splitQueryParams(r.URL.Query().Get("include"), regexes),
|
|
excluded: splitQueryParams(r.URL.Query().Get("exclude"), regexes),
|
|
}
|
|
|
|
sortOrder := sortOrder(r)
|
|
|
|
path := strings.TrimPrefix(r.URL.Path, mediaPrefix)
|
|
|
|
if runtime.GOOS == "windows" {
|
|
path = strings.TrimPrefix(path, "/")
|
|
}
|
|
|
|
exists, err := fileExists(path)
|
|
if err != nil {
|
|
fmt.Println(err)
|
|
|
|
serverError(w, r, nil)
|
|
|
|
return
|
|
}
|
|
if !exists {
|
|
notFound(w, r, path)
|
|
|
|
return
|
|
}
|
|
|
|
registered, fileType, mimeType, err := formats.FileType(path)
|
|
if err != nil {
|
|
fmt.Println(err)
|
|
|
|
serverError(w, r, nil)
|
|
|
|
return
|
|
}
|
|
|
|
if !registered {
|
|
notFound(w, r, path)
|
|
|
|
return
|
|
}
|
|
|
|
fileUri := generateFileUri(path)
|
|
|
|
fileName := filepath.Base(path)
|
|
|
|
w.Header().Add("Content-Type", "text/html")
|
|
|
|
refreshTimer, refreshInterval := refreshInterval(r)
|
|
|
|
queryParams := generateQueryParams(filters, sortOrder, refreshInterval)
|
|
|
|
var htmlBody strings.Builder
|
|
htmlBody.WriteString(`<!DOCTYPE html><html lang="en"><head>`)
|
|
htmlBody.WriteString(faviconHtml)
|
|
htmlBody.WriteString(fmt.Sprintf(`<style>%s</style>`, fileType.Css()))
|
|
htmlBody.WriteString((fileType.Title(queryParams, fileUri, path, fileName, mimeType)))
|
|
htmlBody.WriteString(`</head><body>`)
|
|
if refreshInterval != "0ms" {
|
|
htmlBody.WriteString(fmt.Sprintf("<script>window.onload = function(){setInterval(function(){window.location.href = '/%s';}, %d);};</script>",
|
|
queryParams,
|
|
refreshTimer))
|
|
}
|
|
htmlBody.WriteString((fileType.Body(queryParams, fileUri, path, fileName, mimeType)))
|
|
htmlBody.WriteString(`</body></html>`)
|
|
|
|
_, err = io.WriteString(w, gohtml.Format(htmlBody.String()))
|
|
if err != nil {
|
|
fmt.Println(err)
|
|
|
|
serverError(w, r, nil)
|
|
|
|
return
|
|
}
|
|
}
|
|
}
|
|
|
|
func serveVersion() httprouter.Handle {
|
|
return func(w http.ResponseWriter, r *http.Request, p httprouter.Params) {
|
|
data := []byte(fmt.Sprintf("roulette v%s\n", ReleaseVersion))
|
|
|
|
w.Header().Write(bytes.NewBufferString("Content-Length: " + strconv.Itoa(len(data))))
|
|
|
|
w.Write(data)
|
|
}
|
|
}
|
|
|
|
func ServePage(args []string) error {
|
|
timeZone := os.Getenv("TZ")
|
|
if timeZone != "" {
|
|
var err error
|
|
time.Local, err = time.LoadLocation(timeZone)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
bindHost, err := net.LookupHost(Bind)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
bindAddr := net.ParseIP(bindHost[0])
|
|
if bindAddr == nil {
|
|
return errors.New("invalid bind address provided")
|
|
}
|
|
|
|
formats := &types.Types{
|
|
Extensions: make(map[string]string),
|
|
MimeTypes: make(map[string]types.Type),
|
|
}
|
|
|
|
if Audio || All {
|
|
formats.Add(audio.New())
|
|
}
|
|
|
|
if Flash || All {
|
|
formats.Add(flash.New())
|
|
}
|
|
|
|
if Text || All {
|
|
formats.Add(text.New())
|
|
}
|
|
|
|
if Videos || All {
|
|
formats.Add(video.New())
|
|
}
|
|
|
|
// enable image support if no other flags are passed, to retain backwards compatibility
|
|
// to be replaced with rootCmd.MarkFlagsOneRequired on next spf13/cobra update
|
|
if Images || All || len(formats.Extensions) == 0 {
|
|
formats.Add(images.New())
|
|
}
|
|
|
|
paths, err := validatePaths(args, formats)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
if len(paths) == 0 {
|
|
return ErrNoMediaFound
|
|
}
|
|
|
|
cache := &fileCache{
|
|
mutex: sync.RWMutex{},
|
|
list: []string{},
|
|
}
|
|
|
|
regexes := ®exes{
|
|
filename: regexp.MustCompile(`(.+)([0-9]{3})(\..+)`),
|
|
alphanumeric: regexp.MustCompile(`^[A-z0-9]*$`),
|
|
}
|
|
|
|
mux := httprouter.New()
|
|
|
|
srv := &http.Server{
|
|
Addr: net.JoinHostPort(Bind, strconv.Itoa(int(Port))),
|
|
Handler: mux,
|
|
IdleTimeout: 10 * time.Minute,
|
|
ReadTimeout: 5 * time.Second,
|
|
WriteTimeout: 5 * time.Minute,
|
|
}
|
|
|
|
mux.PanicHandler = serverErrorHandler()
|
|
|
|
mux.GET("/", serveRoot(paths, regexes, cache, formats))
|
|
|
|
mux.GET("/favicons/*favicon", serveFavicons())
|
|
|
|
mux.GET("/favicon.ico", serveFavicons())
|
|
|
|
mux.GET(mediaPrefix+"/*media", serveMedia(paths, regexes, formats))
|
|
|
|
mux.GET(sourcePrefix+"/*static", serveStaticFile(paths, cache))
|
|
|
|
mux.GET("/version", serveVersion())
|
|
|
|
if Cache {
|
|
registerCacheHandlers(mux, args, cache, formats)
|
|
}
|
|
|
|
if Info {
|
|
registerInfoHandlers(mux, args, cache, formats)
|
|
}
|
|
|
|
if Profile {
|
|
registerProfileHandlers(mux)
|
|
}
|
|
|
|
if Russian {
|
|
fmt.Printf("WARNING! Files *will* be deleted after serving!\n\n")
|
|
}
|
|
|
|
err = srv.ListenAndServe()
|
|
if !errors.Is(err, http.ErrServerClosed) {
|
|
return err
|
|
}
|
|
|
|
return nil
|
|
}
|