[pve-devel] [PATCH storage/manager v5 0/2] fix #4849: allow download of compressed ISOs

[pve-devel] [PATCH storage/manager v5 0/2] fix #4849: allow download of compressed ISOs

[Philipp Hufnagl]

Many web pages offer the download of the disk images compressed. This
patch allows the download of archives (like .gz), automatically detects
the format and decompresses it

Changes since v4:
  * add commit messages
  * fix nit

Changes since v3:
  * generate compression regex from compression list
  * fix logic errors

Changes since v2:
  * move compression code to the download function in common
  * minor code improvements


Changes since v1:
  * Improve code quality as suggested by feedback

Philipp Hufnagl (1):
  fix #4849: download-url: allow download and decompression of
    compressed ISOs

 src/PVE/API2/Storage/Status.pm | 14 +++++++++++++-
 src/PVE/Storage.pm             |  6 ++++++
 src/PVE/Storage/Plugin.pm      |  3 ++-
 3 files changed, 21 insertions(+), 2 deletions(-)

Philipp Hufnagl (1):
  fix #4849: download to storage: automatically dectect and configure
    compression

 PVE/API2/Nodes.pm                           | 21 ++++++++++++++++++++-
 www/manager6/Makefile                       |  1 +
 www/manager6/form/DecompressionSelector.js  | 13 +++++++++++++
 www/manager6/window/DownloadUrlToStorage.js | 17 +++++++++++++++++
 4 files changed, 51 insertions(+), 1 deletion(-)
 create mode 100644 www/manager6/form/DecompressionSelector.js

-- 
2.39.2

[pve-devel] [PATCH storage/manager v5 1/1] fix #4849: download to storage: automatically dectect and configure compression

[Philipp Hufnagl]

extend the user interface of of the "Download from Url" dialog with an
option to choose a decompression algorithm to decomppress the image
after download.

extended the query_url_metadata function to also automatically determine
if a decompression is needed. If it is it will be automatically set in
    the UI

Signed-off-by: Philipp Hufnagl <p.hufnagl@proxmox.com>
---
 PVE/API2/Nodes.pm                           | 21 ++++++++++++++++++++-
 www/manager6/Makefile                       |  1 +
 www/manager6/form/DecompressionSelector.js  | 13 +++++++++++++
 www/manager6/window/DownloadUrlToStorage.js | 17 +++++++++++++++++
 4 files changed, 51 insertions(+), 1 deletion(-)
 create mode 100644 www/manager6/form/DecompressionSelector.js

diff --git a/PVE/API2/Nodes.pm b/PVE/API2/Nodes.pm
index 5a148d1d..6fa138fb 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::Plugin::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..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

[pve-devel] [PATCH storage/manager v5 1/1] fix #4849: download-url: allow download and decompression of compressed ISOs

[Philipp Hufnagl]

extend the download_url function with the capabillity to handle
compression

add decopressor info for images

build compression algorithm regex dynamically to avoid duplication

Signed-off-by: Philipp Hufnagl <p.hufnagl@proxmox.com>
---
 src/PVE/API2/Storage/Status.pm | 14 +++++++++++++-
 src/PVE/Storage.pm             |  6 ++++++
 src/PVE/Storage/Plugin.pm      |  3 ++-
 3 files changed, 21 insertions(+), 2 deletions(-)

diff --git a/src/PVE/API2/Storage/Status.pm b/src/PVE/API2/Storage/Status.pm
index 2aaeff6..7875530 100644
--- a/src/PVE/API2/Storage/Status.pm
+++ b/src/PVE/API2/Storage/Status.pm
@@ -578,6 +578,12 @@ __PACKAGE__->register_method({
 		requires => 'checksum-algorithm',
 		optional => 1,
 	    },
+	    compression => {
+		description => "Decompress the downloaded file using specified compression algorithm",
+		type => 'string',
+		enum => $PVE::Storage::Plugin::KNOWN_COMPRESSION_FORMATS,
+		optional => 1,
+	    },
 	    'checksum-algorithm' => {
 		description => "The algorithm to calculate the checksum of the file.",
 		type => 'string',
@@ -604,7 +610,7 @@ __PACKAGE__->register_method({
 
 	my $cfg = PVE::Storage::config();
 
-	my ($node, $storage) = $param->@{'node', 'storage'};
+	my ($node, $storage, $compression) = $param->@{'node', 'storage','compression'};
 	my $scfg = PVE::Storage::storage_check_enabled($cfg, $storage, $node);
 
 	die "can't upload to storage type '$scfg->{type}', not a file based storage!\n"
@@ -649,6 +655,12 @@ __PACKAGE__->register_method({
 	}
 
 	my $worker = sub {
+	    if ($compression) {
+		die "decompression not supported for $content\n" if $content ne 'iso';
+		my $info = PVE::Storage::decompressor_info('iso', $compression);
+		die "no decompression method found\n" if (! $info->{decompressor});
+		$opts->{decompression_command} = $info->{decompressor};
+	    }
 	    PVE::Tools::download_file_from_url("$path/$filename", $url, $opts);
 	};
 
diff --git a/src/PVE/Storage.pm b/src/PVE/Storage.pm
index a4d85e1..cb70113 100755
--- a/src/PVE/Storage.pm
+++ b/src/PVE/Storage.pm
@@ -1531,6 +1531,12 @@ sub decompressor_info {
 	    lzo => ['lzop', '-d', '-c'],
 	    zst => ['zstd', '-q', '-d', '-c'],
 	},
+	iso => {
+	    # zstd seem to be able to handle .gzip fine. Therefore we dont need additional other tool
+	    gz => ['zcat'],
+	    lzo => ['lzop', '-d', '-c'],
+	    zst => ['zstd', '-q', '-d', '-c'],
+	},
     };
 
     die "ERROR: archive format not defined\n"
diff --git a/src/PVE/Storage/Plugin.pm b/src/PVE/Storage/Plugin.pm
index 74d1987..71fcff0 100644
--- a/src/PVE/Storage/Plugin.pm
+++ b/src/PVE/Storage/Plugin.pm
@@ -19,7 +19,8 @@ use JSON;
 
 use base qw(PVE::SectionConfig);
 
-use constant COMPRESSOR_RE => 'gz|lzo|zst';
+use constant KNOWN_COMPRESSION_FORMATS =>  ( 'gz', 'lzo', 'zst');
+use constant COMPRESSOR_RE => join( '|', KNOWN_COMPRESSION_FORMATS);
 
 use constant LOG_EXT => ".log";
 use constant NOTES_EXT => ".notes";
-- 
2.39.2