Bug 1565574 - Update frontend callers of external protocol service to pass principal. r=Gijs

Differential Revision: https://phabricator.services.mozilla.com/D93645

browser/base/content/browser.js

@@ -8179,7 +8179,10 @@ var MailIntegration = {
       "@mozilla.org/uriloader/external-protocol-service;1"
     ].getService(Ci.nsIExternalProtocolService);
     if (extProtocolSvc) {
-      extProtocolSvc.loadURI(aURL);
+      extProtocolSvc.loadURI(
+        aURL,
+        Services.scriptSecurityManager.getSystemPrincipal()
+      );
     }
   },
 };

browser/components/downloads/DownloadsCommon.jsm

@@ -702,7 +702,10 @@ var DownloadsCommon = {
       // the OS handler try to open the directory.
       Cc["@mozilla.org/uriloader/external-protocol-service;1"]
         .getService(Ci.nsIExternalProtocolService)
-        .loadURI(NetUtil.newURI(aDirectory));
+        .loadURI(
+          NetUtil.newURI(aDirectory),
+          Services.scriptSecurityManager.getSystemPrincipal()
+        );
     }
   },
 

toolkit/components/downloads/DownloadIntegration.jsm

@@ -870,7 +870,10 @@ var DownloadIntegration = {
 
     // If our previous attempts failed, try sending it through
     // the system's external "file:" URL handler.
-    gExternalProtocolService.loadURI(NetUtil.newURI(file));
+    gExternalProtocolService.loadURI(
+      NetUtil.newURI(file),
+      Services.scriptSecurityManager.getSystemPrincipal()
+    );
   },
 
   /**
@@ -938,7 +941,10 @@ var DownloadIntegration = {
 
     // If launch also fails (probably because it's not implemented), let
     // the OS handler try to open the parent.
-    gExternalProtocolService.loadURI(NetUtil.newURI(parent));
+    gExternalProtocolService.loadURI(
+      NetUtil.newURI(parent),
+      Services.scriptSecurityManager.getSystemPrincipal()
+    );
   },
 
   /**

toolkit/content/contentAreaUtils.js

@@ -1247,11 +1247,12 @@ function openURL(aURL) {
     "@mozilla.org/uriloader/external-protocol-service;1"
   ].getService(Ci.nsIExternalProtocolService);
 
+  let recentWindow = Services.wm.getMostRecentWindow("navigator:browser");
+
   if (!protocolSvc.isExposedProtocol(uri.scheme)) {
     // If we're not a browser, use the external protocol service to load the URI.
-    protocolSvc.loadURI(uri);
+    protocolSvc.loadURI(uri, recentWindow?.document.contentPrincipal);
   } else {
-    var recentWindow = Services.wm.getMostRecentWindow("navigator:browser");
     if (recentWindow) {
       recentWindow.openWebLinkIn(uri.spec, "tab", {
         triggeringPrincipal: recentWindow.document.contentPrincipal,

toolkit/content/widgets/text.js

@@ -351,7 +351,7 @@
         // if the scheme is not an exposed protocol, then opening this link
         // should be deferred to the system's external protocol handler
         if (!protocolSvc.isExposedProtocol(uri.scheme)) {
-          protocolSvc.loadURI(uri);
+          protocolSvc.loadURI(uri, principal);
           aEvent.preventDefault();
           return;
         }