[pve-devel] [PATCH V2 manager 1/1] fix #4849: download to storage: automatically dectect and configure compression

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

Signed-off-by: Philipp Hufnagl <p.hufnagl@proxmox.com>
---
 PVE/API2/Nodes.pm                           | 21 ++++++++++++++++++++-
 www/manager6/Makefile                       |  1 +
 www/manager6/form/DecompressionSelector.js  | 14 ++++++++++++++
 www/manager6/window/DownloadUrlToStorage.js | 21 +++++++++++++++++++--
 4 files changed, 54 insertions(+), 3 deletions(-)
 create mode 100644 www/manager6/form/DecompressionSelector.js

diff --git a/PVE/API2/Nodes.pm b/PVE/API2/Nodes.pm
index 9269694d..3e9ec034 100644
--- a/PVE/API2/Nodes.pm
+++ b/PVE/API2/Nodes.pm
@@ -1564,6 +1564,12 @@ __PACKAGE__->register_method({
 		type => 'boolean',
 		optional => 1,
 		default => 1,
+	    },
+	    'detect-compression' => {
+		description => "If true an auto detect of used compression will be attempted",
+		type => 'boolean',
+		optional => 1,
+		default => 0,
 	    }
 	},
     },
@@ -1583,6 +1589,11 @@ __PACKAGE__->register_method({
 		type => 'string',
 		optional => 1,
 	    },
+	    compression => {
+		type => 'string',
+                enum => $PVE::Storage::Status::KNOWN_COMPRESSION_FORMATS,
+		optional => 1,
+	    },
 	},
     },
     code => sub {
@@ -1606,6 +1617,8 @@ __PACKAGE__->register_method({
 	    );
 	}
 
+        my $detect_compression = $param->{'detect-compression'};
+
 	my $req = HTTP::Request->new(HEAD => $url);
 	my $res = $ua->request($req);
 
@@ -1614,7 +1627,7 @@ __PACKAGE__->register_method({
 	my $size = $res->header("Content-Length");
 	my $disposition = $res->header("Content-Disposition");
 	my $type = $res->header("Content-Type");
-
+        my $compression;
 	my $filename;
 
 	if ($disposition && ($disposition =~ m/filename="([^"]*)"/ || $disposition =~ m/filename=([^;]*)/)) {
@@ -1628,10 +1641,16 @@ __PACKAGE__->register_method({
 	    $type = $1;
 	}
 
+        if ($detect_compression && $filename =~ m!^((.+)\.(${\PVE::Storage::Plugin::COMPRESSOR_RE}))$!) {
+            $filename = $2;
+            $compression = $3;
+        }
+
 	my $ret = {};
 	$ret->{filename} = $filename if $filename;
 	$ret->{size} = $size + 0 if $size;
 	$ret->{mimetype} = $type if $type;
+	$ret->{compression} = $compression if $compression;
 
 	return $ret;
     }});
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..87c0ae95
--- /dev/null
+++ b/www/manager6/form/DecompressionSelector.js
@@ -0,0 +1,14 @@
+
+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 48543d28..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__',
 		    });
 		},
 	    });
@@ -215,7 +220,7 @@ Ext.define('PVE.window.DownloadUrlToStorage', {
     ],
 
     initComponent: function() {
-        var me = this;
+	var me = this;
 
 	if (!me.nodename) {
 	    throw "no node name specified";
@@ -223,8 +228,20 @@ 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();
+	me.callParent();
     },
 });
 
-- 
2.39.2