marcel/familienarchiv
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As a user I want the dashboard resume strip to show the actual document thumbnail so I recognize what I was working on at a glance #314

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marcel merged 12 commits from feat/issue-309-resume-strip-thumbnail into main 2026-04-24 07:37:59 +02:00
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backend/src/main/java/org/raddatz/familienarchiv/model/Document.java
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@@ -6,6 +6,7 @@ import org.hibernate.annotations.CreationTimestamp;
import org.hibernate.annotations.UpdateTimestamp; import org.hibernate.annotations.UpdateTimestamp;
import com.fasterxml.jackson.annotation.JsonIgnoreProperties; import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
import com.fasterxml.jackson.annotation.JsonProperty;
import io.swagger.v3.oas.annotations.media.Schema; import io.swagger.v3.oas.annotations.media.Schema;
import java.net.URLEncoder; import java.net.URLEncoder;
@@ -134,6 +135,14 @@ public class Document {
@Builder.Default @Builder.Default
private Set<TrainingLabel> trainingLabels = new HashSet<>(); private Set<TrainingLabel> trainingLabels = new HashSet<>();
// The `?v={thumbnailGeneratedAt}` cache-buster is load-bearing: the thumbnail
// endpoint sends `Cache-Control: private, max-age=31536000, immutable`
// (DocumentController.getDocumentThumbnail). `immutable` is only safe because
// this URL changes whenever the underlying file does. Dropping the query param
// would let browsers serve a stale thumbnail for a year after the file is
// replaced, and shared caches could leak one user's thumbnail to another
// (CWE-525).
@JsonProperty("thumbnailUrl")
public String getThumbnailUrl() { public String getThumbnailUrl() {
if (thumbnailKey == null) return null; if (thumbnailKey == null) return null;
String base = "/api/documents/" + id + "/thumbnail"; String base = "/api/documents/" + id + "/thumbnail";