Add better support for /Launch actions with /FileSpec dictionaries (issue 17846)

src/core/catalog.js

@@ -1568,9 +1568,13 @@ class Catalog {
         case "GoToR":
           const urlDict = action.get("F");
           if (urlDict instanceof Dict) {
-            // We assume that we found a FileSpec dictionary
+            const fs = new FileSpec(
-            // and fetch the URL without checking any further.
+              urlDict,
-            url = urlDict.get("F") || null;
+              /* xref = */ null,
+              /* skipContent = */ true
+            );
+            const { filename } = fs.serializable;
+            url = filename;
           } else if (typeof urlDict === "string") {
             url = urlDict;
           }

src/core/file_spec.js

@@ -42,7 +42,9 @@ function pickPlatformItem(dict) {
  * collections attributes and related files (/RF)
  */
 class FileSpec {
-  constructor(root, xref) {
+  #contentAvailable = false;
+
+  constructor(root, xref, skipContent = false) {
     if (!(root instanceof Dict)) {
       return;
     }
@@ -57,10 +59,12 @@ class FileSpec {
     if (root.has("RF")) {
       warn("Related file specifications are not supported");
     }
-    this.contentAvailable = true;
+    if (!skipContent) {
-    if (!root.has("EF")) {
+      if (root.has("EF")) {
-      this.contentAvailable = false;
+        this.#contentAvailable = true;
-      warn("Non-embedded file specifications are not supported");
+      } else {
+        warn("Non-embedded file specifications are not supported");
+      }
     }
   }
 
@@ -76,7 +80,7 @@ class FileSpec {
   }
 
   get content() {
-    if (!this.contentAvailable) {
+    if (!this.#contentAvailable) {
       return null;
     }
     if (!this.contentRef && this.root) {

test/pdfs/.gitignore

@@ -63,6 +63,7 @@
 !issue7507.pdf
 !issue6931_reduced.pdf
 !issue14847.pdf
+!issue17846.pdf
 !doc_actions.pdf
 !issue7580.pdf
 !issue7598.pdf

test/unit/api_spec.js

@@ -2926,6 +2926,26 @@ describe("api", function () {
       await loadingTask.destroy();
     });
 
+    it("gets annotations containing /Launch action with /FileSpec dictionary (issue 17846)", async function () {
+      const loadingTask = getDocument(buildGetDocumentParams("issue17846.pdf"));
+      const pdfDoc = await loadingTask.promise;
+      const pdfPage = await pdfDoc.getPage(1);
+
+      const annotations = await pdfPage.getAnnotations();
+      expect(annotations.length).toEqual(1);
+
+      const { annotationType, url, unsafeUrl, newWindow } = annotations[0];
+      expect(annotationType).toEqual(AnnotationType.LINK);
+
+      expect(url).toBeUndefined();
+      expect(unsafeUrl).toEqual(
+        "对不起/没关系/1_1_模块1行政文件和药品信息目录.pdf"
+      );
+      expect(newWindow).toEqual(true);
+
+      await loadingTask.destroy();
+    });
+
     it("gets text content", async function () {
       const { items, styles } = await page.getTextContent();