[pve-devel] [PATCH manager v6 2/2] fix #4849: ui: download to storage: automatically dectect and configure compression

[Philipp Hufnagl <p.hufnagl@proxmox.com>]

extends the download iso prompt with a "compression algorithm" drop down
under advanced. User can configure there if a decompression algorithm
should be used from the storage backend. The compression algorithm will
be automatically guessed when calling query_url_metadata

Signed-off-by: Philipp Hufnagl <p.hufnagl@proxmox.com>
---
 www/manager6/Makefile                       |  1 +
 www/manager6/form/DecompressionSelector.js  | 13 +++++++++++++
 www/manager6/window/DownloadUrlToStorage.js | 17 +++++++++++++++++
 3 files changed, 31 insertions(+)
 create mode 100644 www/manager6/form/DecompressionSelector.js

diff --git a/www/manager6/Makefile b/www/manager6/Makefile
index 7ec9d7a5..42a27548 100644
--- a/www/manager6/Makefile
+++ b/www/manager6/Makefile
@@ -34,6 +34,7 @@ JSSRC= 							\
 	form/ContentTypeSelector.js			\
 	form/ControllerSelector.js			\
 	form/DayOfWeekSelector.js			\
+	form/DecompressionSelector.js       \
 	form/DiskFormatSelector.js			\
 	form/DiskStorageSelector.js			\
 	form/EmailNotificationSelector.js		\
diff --git a/www/manager6/form/DecompressionSelector.js b/www/manager6/form/DecompressionSelector.js
new file mode 100644
index 00000000..abd19316
--- /dev/null
+++ b/www/manager6/form/DecompressionSelector.js
@@ -0,0 +1,13 @@
+Ext.define('PVE.form.DecompressionSelector', {
+    extend: 'Proxmox.form.KVComboBox',
+    alias: ['widget.pveDecompressionSelector'],
+    config: {
+	deleteEmpty: false,
+    },
+    comboItems: [
+		['__default__', Proxmox.Utils.NoneText],
+		['lzo', 'LZO'],
+		['gz', 'GZIP'],
+		['zst', 'ZSTD'],
+    ],
+});
diff --git a/www/manager6/window/DownloadUrlToStorage.js b/www/manager6/window/DownloadUrlToStorage.js
index 90320da4..559a1c05 100644
--- a/www/manager6/window/DownloadUrlToStorage.js
+++ b/www/manager6/window/DownloadUrlToStorage.js
@@ -49,6 +49,9 @@ Ext.define('PVE.window.DownloadUrlToStorage', {
 	    vm.set('size', '-');
 	    vm.set('mimetype', '-');
 	},
+	decompressionPossible: function() {
+	    return this.view.content === 'iso';
+	},
 
 	urlCheck: function(field) {
 	    let me = this;
@@ -66,6 +69,7 @@ Ext.define('PVE.window.DownloadUrlToStorage', {
 		params: {
 		    url: queryParam.url,
 		    'verify-certificates': queryParam['verify-certificates'],
+		    'detect-compression': me.decompressionPossible() ? 1 : 0,
 		},
 		waitMsgTarget: view,
 		failure: res => {
@@ -84,6 +88,7 @@ Ext.define('PVE.window.DownloadUrlToStorage', {
 			filename: data.filename || "",
 			size: (data.size && Proxmox.Utils.format_size(data.size)) || gettext("Unknown"),
 			mimetype: data.mimetype || gettext("Unknown"),
+			compression: data.compression || '__default__',
 		    });
 		},
 	    });
@@ -223,6 +228,18 @@ Ext.define('PVE.window.DownloadUrlToStorage', {
 	if (!me.storage) {
 	    throw "no storage ID specified";
 	}
+	if (me.content === 'iso') {
+	    me.items[0].advancedColumn2.push(
+
+		{
+		    xtype: 'pveDecompressionSelector',
+		    name: 'compression',
+		    fieldLabel: gettext('Decompression algorithm'),
+		    allowBlank: true,
+		    hasNoneOption: true,
+		    value: '__default__',
+		});
+	}
 
 	me.callParent();
     },
-- 
2.39.2