40 lines
880 B
Go
40 lines
880 B
Go
package handlers
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import (
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"errors"
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"io"
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"net/http"
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"strings"
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"github.com/minio/minio-go/v7"
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)
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// ServePhoto streams a photo object from object storage.
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// Used by tags.photo_url values of the form "/photos/tags/{id}.{ext}".
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func (a *App) ServePhoto(w http.ResponseWriter, r *http.Request) {
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key := strings.TrimPrefix(r.PathValue("key"), "/")
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if key == "" || a.Storage == nil {
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http.NotFound(w, r)
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return
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}
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obj, ct, err := a.Storage.Get(r.Context(), key)
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if err != nil {
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var me minio.ErrorResponse
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if errors.As(err, &me) && me.Code == "NoSuchKey" {
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http.NotFound(w, r)
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return
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}
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http.Error(w, "photo unavailable", http.StatusInternalServerError)
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return
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}
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defer obj.Close()
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if ct == "" {
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ct = "application/octet-stream"
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}
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w.Header().Set("Content-Type", ct)
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w.Header().Set("Cache-Control", "public, max-age=86400")
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_, _ = io.Copy(w, obj)
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}
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