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- package controllers
- import (
- "fmt"
- "net/http"
- "net/url"
- "os"
- "path"
- "path/filepath"
- "strings"
- log "github.com/sirupsen/logrus"
- "github.com/owncast/owncast/config"
- "github.com/owncast/owncast/core"
- "github.com/owncast/owncast/core/data"
- "github.com/owncast/owncast/models"
- "github.com/owncast/owncast/router/middleware"
- "github.com/owncast/owncast/static"
- "github.com/owncast/owncast/utils"
- )
- // MetadataPage represents a server-rendered web page for bots and web scrapers.
- type MetadataPage struct {
- RequestedURL string
- Image string
- Thumbnail string
- TagsString string
- Summary string
- Name string
- Tags []string
- SocialHandles []models.SocialHandle
- }
- // IndexHandler handles the default index route.
- func IndexHandler(w http.ResponseWriter, r *http.Request) {
- middleware.EnableCors(w)
- // Treat recordings and schedule as index requests
- pathComponents := strings.Split(r.URL.Path, "/")
- pathRequest := pathComponents[1]
- if pathRequest == "recordings" || pathRequest == "schedule" {
- r.URL.Path = "index.html"
- }
- isIndexRequest := r.URL.Path == "/" || filepath.Base(r.URL.Path) == "index.html" || filepath.Base(r.URL.Path) == ""
- // For search engine bots and social scrapers return a special
- // server-rendered page.
- if utils.IsUserAgentABot(r.UserAgent()) && isIndexRequest {
- handleScraperMetadataPage(w, r)
- return
- }
- if utils.IsUserAgentAPlayer(r.UserAgent()) && isIndexRequest {
- http.Redirect(w, r, "/hls/stream.m3u8", http.StatusTemporaryRedirect)
- return
- }
- // If the ETags match then return a StatusNotModified
- if responseCode := middleware.ProcessEtags(w, r); responseCode != 0 {
- w.WriteHeader(responseCode)
- return
- }
- // If this is a directory listing request then return a 404
- info, err := os.Stat(path.Join(config.WebRoot, r.URL.Path))
- if err != nil || (info.IsDir() && !isIndexRequest) {
- w.WriteHeader(http.StatusNotFound)
- return
- }
- // Set a cache control max-age header
- middleware.SetCachingHeaders(w, r)
- // Set our global HTTP headers
- middleware.SetHeaders(w)
- http.ServeFile(w, r, path.Join(config.WebRoot, r.URL.Path))
- }
- // Return a basic HTML page with server-rendered metadata from the config
- // to give to Opengraph clients and web scrapers (bots, web crawlers, etc).
- func handleScraperMetadataPage(w http.ResponseWriter, r *http.Request) {
- tmpl, err := static.GetBotMetadataTemplate()
- if err != nil {
- log.Errorln(err)
- w.WriteHeader(http.StatusInternalServerError)
- return
- }
- scheme := "http"
- if siteURL := data.GetServerURL(); siteURL != "" {
- if parsed, err := url.Parse(siteURL); err == nil && parsed.Scheme != "" {
- scheme = parsed.Scheme
- }
- }
- fullURL, err := url.Parse(fmt.Sprintf("%s://%s%s", scheme, r.Host, r.URL.Path))
- if err != nil {
- log.Errorln(err)
- }
- imageURL, err := url.Parse(fmt.Sprintf("%s://%s%s", scheme, r.Host, "/logo/external"))
- if err != nil {
- log.Errorln(err)
- }
- 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(filepath.Join(config.WebRoot, "thumbnail.jpg")) {
- thumbnail, err := url.Parse(fmt.Sprintf("%s://%s%s", scheme, r.Host, "/thumbnail.jpg"))
- if err != nil {
- log.Errorln(err)
- thumbnailURL = imageURL.String()
- } else {
- thumbnailURL = thumbnail.String()
- }
- } else {
- thumbnailURL = imageURL.String()
- }
- tagsString := strings.Join(data.GetServerMetadataTags(), ",")
- metadata := MetadataPage{
- Name: data.GetServerName(),
- RequestedURL: fullURL.String(),
- Image: imageURL.String(),
- Summary: data.GetServerSummary(),
- Thumbnail: thumbnailURL,
- TagsString: tagsString,
- Tags: data.GetServerMetadataTags(),
- SocialHandles: data.GetSocialHandles(),
- }
- w.Header().Set("Content-Type", "text/html")
- if err := tmpl.Execute(w, metadata); err != nil {
- log.Errorln(err)
- }
- }
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