112 lines
3.0 KiB
Go
112 lines
3.0 KiB
Go
package routes
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import (
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"database/sql"
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"fmt"
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"io"
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"log"
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"net/http"
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"os"
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"path"
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"strconv"
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"github.com/gorilla/mux"
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"github.com/viktorstrate/photoview/api/graphql/models"
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"github.com/viktorstrate/photoview/api/scanner"
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)
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func RegisterPhotoRoutes(db *sql.DB, router *mux.Router) {
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router.HandleFunc("/{name}", func(w http.ResponseWriter, r *http.Request) {
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media_name := mux.Vars(r)["name"]
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row := db.QueryRow("SELECT media_url.purpose, media_url.content_type, media_url.media_id FROM media_url, media WHERE media_url.media_name = ? AND media_url.media_id = media.media_id", media_name)
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var purpose models.MediaPurpose
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var content_type string
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var media_id int
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if err := row.Scan(&purpose, &content_type, &media_id); err != nil {
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w.WriteHeader(http.StatusNotFound)
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w.Write([]byte("404"))
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return
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}
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row = db.QueryRow("SELECT * FROM media WHERE media_id = ?", media_id)
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media, err := models.NewMediaFromRow(row)
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if err != nil {
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log.Printf("WARN: %s", err)
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w.WriteHeader(http.StatusInternalServerError)
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w.Write([]byte("internal server error"))
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}
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if success, response, status, err := authenticateMedia(media, db, r); !success {
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if err != nil {
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log.Printf("WARN: error authenticating photo: %s\n", err)
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}
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w.WriteHeader(status)
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w.Write([]byte(response))
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return
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}
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var cachedPath string
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var file *os.File = nil
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if purpose == models.PhotoThumbnail || purpose == models.PhotoHighRes || purpose == models.VideoThumbnail {
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cachedPath = path.Join(scanner.PhotoCache(), strconv.Itoa(media.AlbumId), strconv.Itoa(media_id), media_name)
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} else if purpose == models.MediaOriginal {
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cachedPath = media.Path
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} else {
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log.Printf("ERROR: Can not handle media_purpose for photo: %s\n", purpose)
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w.WriteHeader(http.StatusInternalServerError)
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w.Write([]byte("internal server error"))
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return
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}
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file, err = os.Open(cachedPath)
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defer file.Close()
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if err != nil {
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if os.IsNotExist(err) {
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tx, err := db.Begin()
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if err != nil {
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log.Printf("ERROR: %s\n", err)
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w.WriteHeader(http.StatusInternalServerError)
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w.Write([]byte("internal server error"))
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return
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}
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_, err = scanner.ProcessMedia(tx, media)
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if err != nil {
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log.Printf("ERROR: processing image not found in cache: %s\n", err)
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w.WriteHeader(http.StatusInternalServerError)
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w.Write([]byte("internal server error"))
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tx.Rollback()
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return
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}
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file, err = os.Open(cachedPath)
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if err != nil {
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log.Printf("ERROR: after reprocessing image not found in cache: %s\n", err)
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w.WriteHeader(http.StatusInternalServerError)
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w.Write([]byte("internal server error"))
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tx.Rollback()
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return
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}
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tx.Commit()
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}
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}
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w.Header().Set("Content-Type", content_type)
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if stats, err := file.Stat(); err == nil {
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w.Header().Set("Content-Length", fmt.Sprintf("%d", stats.Size()))
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}
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// Allow caching the resource for 1 day
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w.Header().Set("Cache-Control", "private, max-age=86400, immutable")
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io.Copy(w, file)
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})
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}
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