syz-cluster: add link to download the whole series

This will simplify debugging of mistriaged patch series that ended up
either not applying anywhere or ended up with a build error.

Author: a-nogikh

syz-cluster/dashboard/handler.go

@@ -67,6 +67,7 @@ func (h *dashboardHandler) Mux() *http.ServeMux {
 	mux.HandleFunc("/sessions/{id}/triage_log", errToStatus(h.sessionTriageLog))
 	mux.HandleFunc("/sessions/{id}/test_logs", errToStatus(h.sessionTestLog))
 	mux.HandleFunc("/sessions/{id}/test_artifacts", errToStatus(h.sessionTestArtifacts))
+	mux.HandleFunc("/series/{id}/all_patches", errToStatus(h.allPatches))
 	mux.HandleFunc("/series/{id}", errToStatus(h.seriesInfo))
 	mux.HandleFunc("/patches/{id}", errToStatus(h.patchContent))
 	mux.HandleFunc("/findings/{id}/{key}", errToStatus(h.findingInfo))
@@ -301,6 +302,28 @@ func (h *dashboardHandler) patchContent(w http.ResponseWriter, r *http.Request)
 	return h.streamBlob(w, patch.BodyURI)
 }
 
+// nolint:dupl
+func (h *dashboardHandler) allPatches(w http.ResponseWriter, r *http.Request) error {
+	ctx := r.Context()
+	series, err := h.seriesRepo.GetByID(ctx, r.PathValue("id"))
+	if err != nil {
+		return fmt.Errorf("failed to query series: %w", err)
+	} else if series == nil {
+		return fmt.Errorf("%w: series", errNotFound)
+	}
+	patches, err := h.seriesRepo.ListPatches(ctx, series)
+	if err != nil {
+		return fmt.Errorf("failed to query patches: %w", err)
+	}
+	for _, patch := range patches {
+		err = h.streamBlob(w, patch.BodyURI)
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
 func (h *dashboardHandler) findingInfo(w http.ResponseWriter, r *http.Request) error {
 	finding, err := h.findingRepo.GetByID(r.Context(), r.PathValue("id"))
 	if err != nil {

syz-cluster/dashboard/handler_test.go

@@ -54,6 +54,36 @@ func TestURLs(t *testing.T) {
 	}
 }
 
+func TestAllPatches(t *testing.T) {
+	env, ctx := app.TestEnvironment(t)
+	client := controller.TestServer(t, env)
+	testSeries := &api.Series{
+		ExtID: "ext-id",
+		Title: "test series name",
+		Link:  "http://link/to/series",
+		Patches: []api.SeriesPatch{
+			{
+				Seq:   1,
+				Title: "first patch title",
+				Body:  []byte("first content\n"),
+			},
+			{
+				Seq:   2,
+				Title: "second patch title",
+				Body:  []byte("second content\n"),
+			},
+		},
+	}
+	ids := controller.UploadTestSeries(t, ctx, client, testSeries)
+	_, baseURL := testServer(t, env)
+
+	resp, err := http.Get(baseURL + "/series/" + ids.SeriesID + "/all_patches")
+	body, _ := io.ReadAll(resp.Body)
+	resp.Body.Close()
+	assert.NoError(t, err)
+	assert.Equal(t, "first content\nsecond content\n", string(body))
+}
+
 func testServer(t *testing.T, env *app.AppEnvironment) (*dashboardHandler, string) {
 	handler, err := newHandler(env)
 	require.NoError(t, err)

syz-cluster/dashboard/templates/series.html

@@ -71,7 +71,7 @@ <h3>Patches ({{.TotalPatches}})</h3>
             <thead>
                 <tr>
                     <th>Name</th>
-                    <th>Content</th>
+                    <th>Content <a href="/series/{{.ID}}/all_patches">[All]</a></th>
                 </tr>
             </thead>
             <tbody>