2021-02-07 19:04:17 +01:00
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package api
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import (
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"net/http"
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"path/filepath"
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"time"
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"github.com/gin-gonic/gin"
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2022-07-19 16:58:43 +02:00
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2022-10-15 21:54:11 +02:00
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"github.com/photoprism/photoprism/internal/get"
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2021-02-07 19:04:17 +01:00
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"github.com/photoprism/photoprism/internal/photoprism"
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"github.com/photoprism/photoprism/internal/query"
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"github.com/photoprism/photoprism/internal/thumb"
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2022-07-19 16:58:43 +02:00
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"github.com/photoprism/photoprism/pkg/clean"
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2021-02-07 19:04:17 +01:00
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"github.com/photoprism/photoprism/pkg/fs"
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)
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const (
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folderCover = "folder-cover"
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)
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2021-09-05 13:48:53 +02:00
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// FolderCover returns a folder cover image.
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//
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// GET /api/v1/folders/t/:hash/:token/:size
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2021-02-07 19:04:17 +01:00
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//
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// Parameters:
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2022-08-10 16:09:21 +02:00
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//
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// uid: string folder uid
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// token: string url security token, see config
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// size: string thumb type, see thumb.Sizes
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2021-09-05 13:48:53 +02:00
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func FolderCover(router *gin.RouterGroup) {
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router.GET("/folders/t/:uid/:token/:size", func(c *gin.Context) {
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2021-02-07 19:04:17 +01:00
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if InvalidPreviewToken(c) {
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c.Data(http.StatusForbidden, "image/svg+xml", folderIconSvg)
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return
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}
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start := time.Now()
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2022-10-15 21:54:11 +02:00
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conf := get.Config()
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2021-02-07 19:04:17 +01:00
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uid := c.Param("uid")
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2022-04-15 09:42:07 +02:00
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thumbName := thumb.Name(clean.Token(c.Param("size")))
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2021-02-07 19:04:17 +01:00
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download := c.Query("download") != ""
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2021-09-05 13:48:53 +02:00
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size, ok := thumb.Sizes[thumbName]
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2021-02-07 19:04:17 +01:00
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if !ok {
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2021-09-05 13:48:53 +02:00
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log.Errorf("%s: invalid size %s", folderCover, thumbName)
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2021-02-07 19:04:17 +01:00
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c.Data(http.StatusOK, "image/svg+xml", folderIconSvg)
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return
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}
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2021-09-05 12:32:08 +02:00
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if size.Uncached() && !conf.ThumbUncached() {
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2021-09-05 13:48:53 +02:00
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thumbName, size = thumb.Find(conf.ThumbSizePrecached())
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2021-02-07 19:04:17 +01:00
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2021-09-05 13:48:53 +02:00
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if thumbName == "" {
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2021-09-05 12:32:08 +02:00
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log.Errorf("folder: invalid thumb size %d", conf.ThumbSizePrecached())
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2021-02-07 19:04:17 +01:00
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c.Data(http.StatusOK, "image/svg+xml", folderIconSvg)
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return
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}
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}
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2022-10-15 21:54:11 +02:00
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cache := get.CoverCache()
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2021-09-05 13:48:53 +02:00
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cacheKey := CacheKey(folderCover, uid, string(thumbName))
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2021-02-07 19:04:17 +01:00
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if cacheData, ok := cache.Get(cacheKey); ok {
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2022-07-19 16:58:43 +02:00
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log.Tracef("api-v1: cache hit for %s [%s]", cacheKey, time.Since(start))
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2021-02-07 19:04:17 +01:00
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cached := cacheData.(ThumbCache)
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if !fs.FileExists(cached.FileName) {
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log.Errorf("%s: %s not found", folderCover, uid)
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c.Data(http.StatusOK, "image/svg+xml", folderIconSvg)
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return
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}
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AddCoverCacheHeader(c)
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if download {
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c.FileAttachment(cached.FileName, cached.ShareName)
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} else {
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c.File(cached.FileName)
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}
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return
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}
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f, err := query.FolderCoverByUID(uid)
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if err != nil {
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2023-09-19 09:12:15 +02:00
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log.Debugf("%s: %s contains no pictures, using generic cover", folderCover, uid)
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c.Data(http.StatusOK, "image/svg+xml", folderIconSvg)
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return
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}
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fileName := photoprism.FileName(f.FileRoot, f.FileName)
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if !fs.FileExists(fileName) {
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log.Errorf("%s: could not find original for %s", folderCover, fileName)
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c.Data(http.StatusOK, "image/svg+xml", folderIconSvg)
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// Set missing flag so that the file doesn't show up in search results anymore.
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log.Warnf("%s: %s is missing", folderCover, clean.Log(f.FileName))
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logError(folderCover, f.Update("FileMissing", true))
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return
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}
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// Use original file if thumb size exceeds limit, see https://github.com/photoprism/photoprism/issues/157
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2021-09-05 12:32:08 +02:00
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if size.ExceedsLimit() && !download {
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log.Debugf("%s: using original, size exceeds limit (width %d, height %d)", folderCover, size.Width, size.Height)
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2021-02-07 19:04:17 +01:00
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AddCoverCacheHeader(c)
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c.File(fileName)
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return
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}
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var thumbnail string
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2021-09-05 12:32:08 +02:00
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if conf.ThumbUncached() || size.Uncached() {
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2022-04-18 13:55:17 +02:00
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thumbnail, err = thumb.FromFile(fileName, f.FileHash, conf.ThumbCachePath(), size.Width, size.Height, f.FileOrientation, size.Options...)
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} else {
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thumbnail, err = thumb.FromCache(fileName, f.FileHash, conf.ThumbCachePath(), size.Width, size.Height, size.Options...)
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2021-02-07 19:04:17 +01:00
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}
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if err != nil {
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log.Errorf("%s: %s", folderCover, err)
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c.Data(http.StatusOK, "image/svg+xml", folderIconSvg)
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return
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} else if thumbnail == "" {
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2023-07-15 15:17:41 +02:00
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log.Errorf("%s: %s has empty thumb name - you may have found a bug", folderCover, filepath.Base(fileName))
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c.Data(http.StatusOK, "image/svg+xml", folderIconSvg)
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return
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}
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cache.SetDefault(cacheKey, ThumbCache{thumbnail, f.ShareBase(0)})
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log.Debugf("cached %s [%s]", cacheKey, time.Since(start))
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AddCoverCacheHeader(c)
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if download {
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c.FileAttachment(thumbnail, f.DownloadName(DownloadName(c), 0))
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} else {
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c.File(thumbnail)
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}
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})
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}
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