# HG changeset patch

# User Rob Krum <biggestsonicfan@gmail.com>

# Date 1695432215 25200

#      Fri Sep 22 18:23:35 2023 -0700

# Node ID e6a8a9f0956d124e8de34eb4bcf09d8e17077d9d

# Parent  677cbf2e64cdcd3a93e644f781be2bdc2529ba1a

Bug 1822730 - Add basic blob protocol handling for blob URIs that contain parsable http/s protocols

diff --git a/toolkit/mozapps/downloads/DownloadLastDir.sys.mjs b/toolkit/mozapps/downloads/DownloadLastDir.sys.mjs

--- a/toolkit/mozapps/downloads/DownloadLastDir.sys.mjs

+++ b/toolkit/mozapps/downloads/DownloadLastDir.sys.mjs

@@ -221,11 +221,13 @@ export class DownloadLastDir {

   /**

    * Pre-processor to extract a domain name to be used with the content-prefs

-   * service. This specially handles data and file URIs so that the download

-   * dirs are recalled in a more consistent way:

+   * service. This specially handles data, file and blob URIs so that the

+   * download dirs are recalled in a more consistent way:

    *  - all file:/// URIs share the same folder

    *  - data: URIs share a folder per mime-type. If a mime-type is not

    *    specified text/plain is assumed.

+   *  - blob: blob URIs are tested for http/https and the blob protocol

+   *    is stripped.

    * In any other case the original URL is returned as a string and ContentPrefs

    * will do its usual parsing.

    *

@@ -234,6 +236,9 @@ export class DownloadLastDir {

    */

   #cpsGroupFromURL(url) {

     if (typeof url == "string") {

+      if (url.startsWith("blob:http://") || url.startsWith("blob:https://")) {

+        url = url.replace("blob:", "");

+      }

       url = new URL(url);

     } else if (url instanceof Ci.nsIURI) {

       url = URL.fromURI(url);

@@ -241,6 +246,14 @@ export class DownloadLastDir {

     if (!URL.isInstance(url)) {

       return url;

     }

+    if (url.protocol == "blob:") {

+      if (

+        url.href.startsWith("blob:http://") ||

+        url.href.startsWith("blob:https://")

+      ) {

+        return url.href.replace("blob:", "");

+      }

+    }

     if (url.protocol == "data:") {

       return url.href.match(/^data:[^;,]*/i)[0].replace(/:$/, ":text/plain");

     }