55 lines
1.1 KiB
Go
55 lines
1.1 KiB
Go
package handler
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import (
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"database/sql"
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"log"
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"net/http"
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"time"
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)
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func (h *Handler) Download(w http.ResponseWriter, r *http.Request) {
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id := r.PathValue("id")
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if id == "" {
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http.NotFound(w, r)
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return
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}
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rec, err := h.store.Get(id)
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if err == sql.ErrNoRows {
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http.NotFound(w, r)
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return
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}
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if err != nil {
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log.Printf("db get error: %v", err)
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http.Error(w, "internal error", http.StatusInternalServerError)
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return
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}
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// Check expiry
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if rec.ExpiresAt != nil && rec.ExpiresAt.Before(time.Now().UTC()) {
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http.Error(w, "this file has expired", http.StatusGone)
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return
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}
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// Check password
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if rec.PasswordHash != nil {
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cookie, err := r.Cookie("auth_" + id)
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if err != nil || cookie.Value != "granted" {
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http.Redirect(w, r, "/f/"+id+"/auth", http.StatusSeeOther)
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return
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}
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}
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// Generate presigned URL
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url, err := h.r2.PresignGet(r.Context(), rec.R2Key, rec.Filename)
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if err != nil {
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log.Printf("presign error: %v", err)
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http.Error(w, "internal error", http.StatusInternalServerError)
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return
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}
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h.store.IncrementDownloads(id)
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http.Redirect(w, r, url, http.StatusFound)
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}
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