owncast/controllers/index.go
2020-07-19 18:39:27 -07:00

86 lines
2.4 KiB
Go

package controllers
import (
"fmt"
"net/http"
"net/url"
"path"
"strings"
"text/template"
log "github.com/sirupsen/logrus"
"github.com/gabek/owncast/config"
"github.com/gabek/owncast/core"
"github.com/gabek/owncast/router/middleware"
"github.com/gabek/owncast/utils"
)
type MetadataPage struct {
Config config.InstanceDetails
RequestedURL string
Image string
Thumbnail string
TagsString string
}
//IndexHandler handles the default index route
func IndexHandler(w http.ResponseWriter, r *http.Request) {
middleware.EnableCors(&w)
isIndexRequest := r.URL.Path == "/" || r.URL.Path == "/index.html"
// Reject requests for the web UI if it's disabled.
if isIndexRequest && config.Config.DisableWebFeatures {
w.WriteHeader(http.StatusNotFound)
w.Write([]byte("404 - y u ask 4 this? If this is an error let us know: https://github.com/gabek/owncast/issues"))
return
}
if utils.IsUserAgentABot(r.UserAgent()) && isIndexRequest {
handleScraperMetadataPage(w, r)
return
}
http.ServeFile(w, r, path.Join("webroot", r.URL.Path))
if path.Ext(r.URL.Path) == ".m3u8" {
middleware.DisableCache(&w)
clientID := utils.GenerateClientIDFromRequest(r)
core.SetClientActive(clientID)
}
}
// Return a basic HTML page with server-rendered metadata from the config file
// to give to Opengraph clients and web scrapers (bots, web crawlers, etc).
func handleScraperMetadataPage(w http.ResponseWriter, r *http.Request) {
tmpl := template.Must(template.ParseFiles(path.Join("static", "metadata.html")))
fullURL, err := url.Parse(fmt.Sprintf("http://%s%s", r.Host, r.URL.Path))
imageURL, err := url.Parse(fmt.Sprintf("http://%s%s", r.Host, config.Config.InstanceDetails.Logo["large"]))
status := core.GetStatus()
// If the thumbnail does not exist or we're offline then just use the logo image
var thumbnailURL string
if status.Online && utils.DoesFileExists("webroot/thumbnail.jpg") {
thumbnail, err := url.Parse(fmt.Sprintf("http://%s%s", r.Host, "/thumbnail.jpg"))
if err != nil {
log.Errorln(err)
}
thumbnailURL = thumbnail.String()
} else {
thumbnailURL = imageURL.String()
}
tagsString := strings.Join(config.Config.InstanceDetails.Tags, ",")
metadata := MetadataPage{config.Config.InstanceDetails, fullURL.String(), imageURL.String(), thumbnailURL, tagsString}
w.Header().Set("Content-Type", "text/html")
err = tmpl.Execute(w, metadata)
if err != nil {
log.Panicln(err)
}
}