[pmg-devel] [PATCH widget-toolkit v2 6/7] Source file download call in central function

[Daniel Tschlatscher <d.tschlatscher@proxmox.com>]

Adds a function for downloading a file from a remote URL in the Utils
class and uses it to revise one similar usage in FileBrowser.js

Signed-off-by: Daniel Tschlatscher <d.tschlatscher@proxmox.com>
---
 src/Utils.js              | 13 +++++++++++++
 src/window/FileBrowser.js | 11 +++++------
 2 files changed, 18 insertions(+), 6 deletions(-)

diff --git a/src/Utils.js b/src/Utils.js
index 6a03057..bb68937 100644
--- a/src/Utils.js
+++ b/src/Utils.js
@@ -1272,6 +1272,19 @@ utilities: {
 	    .map(val => val.charCodeAt(0)),
 	);
     },
+
+    // Setting filename here when downloading from a remote url sometimes fails in chromium browsers
+    // because of a bug when using attribute download in conjunction with a self signed certificate.
+    // For more info see https://bugs.chromium.org/p/chromium/issues/detail?id=993362
+    downloadAsFile: function(source, fileName) {
+	let hiddenElement = document.createElement('a');
+	hiddenElement.href = source;
+	hiddenElement.target = '_blank';
+	if (fileName) {
+	    hiddenElement.download = fileName;
+	}
+	hiddenElement.click();
+    },
 },
 
     singleton: true,
diff --git a/src/window/FileBrowser.js b/src/window/FileBrowser.js
index a519d6b..4e4c639 100644
--- a/src/window/FileBrowser.js
+++ b/src/window/FileBrowser.js
@@ -101,18 +101,17 @@ Ext.define("Proxmox.window.FileBrowser", {
 	    let params = { ...view.extraParams };
 	    params.filepath = data.filepath;
 
-	    let atag = document.createElement('a');
-	    atag.download = view.downloadPrefix + data.text;
+	    let filename = view.downloadPrefix + data.text;
 	    if (data.type === 'd') {
 		if (tar) {
 		    params.tar = 1;
-		    atag.download += ".tar.zst";
+		    filename += ".tar.zst";
 		} else {
-		    atag.download += ".zip";
+		    filename += ".zip";
 		}
 	    }
-	    atag.href = me.buildUrl(view.downloadURL, params);
-	    atag.click();
+
+	    Proxmox.Utils.downloadAsFile(me.buildUrl(view.downloadURL, params), filename);
 	},
 
 	fileChanged: function() {
-- 
2.30.2