[pve-devel] [PATCH v5 pve-manager 11/30] api: notification: add api routes for filters

[Lukas Wagner]

The Perl part of the API methods primarily defines the API schema,
checks for any needed priviledges and then calls the actual Rust
implementation exposed via perlmod. Any errors returned by the Rust code
are translated into PVE::Exception, so that the API call fails with the
correct HTTP error code.

Signed-off-by: Lukas Wagner <l.wagner at proxmox.com>
---

Notes:
    Changes since v4:
      - Explain the changes a bit more in the commit message
      - Factor out permission checks into a common helper
      - Minor code style improvements

 PVE/API2/Cluster/Notifications.pm | 255 ++++++++++++++++++++++++++++++
 1 file changed, 255 insertions(+)

diff --git a/PVE/API2/Cluster/Notifications.pm b/PVE/API2/Cluster/Notifications.pm
index b65c6957..b4db7f8e 100644
--- a/PVE/API2/Cluster/Notifications.pm
+++ b/PVE/API2/Cluster/Notifications.pm
@@ -94,6 +94,7 @@ __PACKAGE__->register_method ({
     code => sub {
 	my $result = [
 	    { name => 'endpoints' },
+	    { name => 'filters' },
 	    { name => 'groups' },
 	];
 
@@ -898,4 +899,258 @@ __PACKAGE__->register_method ({
 	return;
     }
 });
+
+my $filter_properties = {
+    name => {
+	description => 'Name of the endpoint.',
+	type => 'string',
+	format => 'pve-configid',
+    },
+    'min-severity' => {
+	type => 'string',
+	description => 'Minimum severity to match',
+	optional => 1,
+	enum => [qw(info notice warning error)],
+    },
+    mode => {
+	type => 'string',
+	description => "Choose between 'and' and 'or' for when multiple properties are specified",
+	optional => 1,
+	enum => [qw(and or)],
+	default => 'and',
+    },
+    'invert-match' => {
+	type => 'boolean',
+	description => 'Invert match of the whole filter',
+	optional => 1,
+    },
+    'comment' => {
+	description => 'Comment',
+	type        => 'string',
+	optional    => 1,
+    },
+};
+
+__PACKAGE__->register_method ({
+    name => 'get_filters',
+    path => 'filters',
+    method => 'GET',
+    description => 'Returns a list of all filters',
+    protected => 1,
+    permissions => {
+	description => "Only lists entries where you have 'Mapping.Modify', 'Mapping.Use' or"
+	    . " 'Mapping.Audit' permissions on '/mapping/notification/<name>'.",
+	user => 'all',
+    },
+    parameters => {
+	additionalProperties => 0,
+	properties => {},
+    },
+    returns => {
+	type => 'array',
+	items => {
+	    type => 'object',
+	    properties => $filter_properties,
+	},
+	links => [ { rel => 'child', href => '{name}' } ],
+    },
+    code => sub {
+	my $config = PVE::Notify::read_config();
+	my $rpcenv = PVE::RPCEnvironment::get();
+
+	my $entities = eval {
+	    $config->get_filters();
+	};
+	raise_api_error($@) if $@;
+
+	return filter_entities_by_privs($rpcenv, $entities);
+    }
+});
+
+__PACKAGE__->register_method ({
+    name => 'get_filter',
+    path => 'filters/{name}',
+    method => 'GET',
+    description => 'Return a specific filter',
+    protected => 1,
+    permissions => {
+	check => ['or',
+	    ['perm', '/mapping/notification/{name}', ['Mapping.Modify']],
+	    ['perm', '/mapping/notification/{name}', ['Mapping.Audit']],
+	],
+    },
+    parameters => {
+	additionalProperties => 0,
+	properties => {
+	    name => {
+		type => 'string',
+		format => 'pve-configid',
+	    },
+	}
+    },
+    returns => {
+	type => 'object',
+	properties => {
+	    %$filter_properties,
+	    digest => get_standard_option('pve-config-digest'),
+	},
+    },
+    code => sub {
+	my ($param) = @_;
+	my $name = extract_param($param, 'name');
+
+	my $config = PVE::Notify::read_config();
+
+	my $filter = eval {
+	    $config->get_filter($name)
+	};
+
+	raise_api_error($@) if $@;
+	$filter->{digest} = $config->digest();
+
+	return $filter;
+    }
+});
+
+__PACKAGE__->register_method ({
+    name => 'create_filter',
+    path => 'filters',
+    protected => 1,
+    method => 'POST',
+    description => 'Create a new filter',
+    protected => 1,
+    permissions => {
+	check => ['perm', '/mapping/notification', ['Mapping.Modify']],
+    },
+    parameters => {
+	additionalProperties => 0,
+	properties => $filter_properties,
+    },
+    returns => { type => 'null' },
+    code => sub {
+	my ($param) = @_;
+
+	my $name = extract_param($param, 'name');
+	my $min_severity = extract_param($param, 'min-severity');
+	my $mode = extract_param($param, 'mode');
+	my $invert_match = extract_param($param, 'invert-match');
+	my $comment = extract_param($param, 'comment');
+
+	eval {
+	    PVE::Notify::lock_config(sub {
+		my $config = PVE::Notify::read_config();
+
+		$config->add_filter(
+		    $name,
+		    $min_severity,
+		    $mode,
+		    $invert_match,
+		    $comment,
+		);
+
+		PVE::Notify::write_config($config);
+	    });
+	};
+
+	raise_api_error($@) if $@;
+	return;
+    }
+});
+
+__PACKAGE__->register_method ({
+    name => 'update_filter',
+    path => 'filters/{name}',
+    protected => 1,
+    method => 'PUT',
+    description => 'Update existing filter',
+    permissions => {
+	check => ['perm', '/mapping/notification/{name}', ['Mapping.Modify']],
+    },
+    parameters => {
+	additionalProperties => 0,
+	properties => {
+	    %{ make_properties_optional($filter_properties) },
+	    delete => {
+		type => 'array',
+		items => {
+		    type => 'string',
+		    format => 'pve-configid',
+		},
+		optional => 1,
+		description => 'A list of settings you want to delete.',
+	    },
+	    digest => get_standard_option('pve-config-digest'),
+	},
+    },
+    returns => { type => 'null' },
+    code => sub {
+	my ($param) = @_;
+
+	my $name = extract_param($param, 'name');
+	my $min_severity = extract_param($param, 'min-severity');
+	my $mode = extract_param($param, 'mode');
+	my $invert_match = extract_param($param, 'invert-match');
+	my $comment = extract_param($param, 'comment');
+	my $digest = extract_param($param, 'digest');
+	my $delete = extract_param($param, 'delete');
+
+	eval {
+	    PVE::Notify::lock_config(sub {
+		my $config = PVE::Notify::read_config();
+
+		$config->update_filter(
+		    $name,
+		    $min_severity,
+		    $mode,
+		    $invert_match,
+		    $comment,
+		    $delete,
+		    $digest,
+		);
+
+		PVE::Notify::write_config($config);
+	    });
+	};
+
+	raise_api_error($@) if $@;
+	return;
+    }
+});
+
+__PACKAGE__->register_method ({
+    name => 'delete_filter',
+    protected => 1,
+    path => 'filters/{name}',
+    method => 'DELETE',
+    description => 'Remove filter',
+    permissions => {
+	check => ['perm', '/mapping/notification/{name}', ['Mapping.Modify']],
+    },
+    parameters => {
+	additionalProperties => 0,
+	properties => {
+	    name => {
+		type => 'string',
+		format => 'pve-configid',
+	    },
+	}
+    },
+    returns => { type => 'null' },
+    code => sub {
+	my ($param) = @_;
+	my $name = extract_param($param, 'name');
+
+	eval {
+	    PVE::Notify::lock_config(sub {
+		my $config = PVE::Notify::read_config();
+		$config->delete_filter($name);
+		PVE::Notify::write_config($config);
+	    });
+	};
+
+	raise_api_error($@) if $@;
+	return;
+    }
+});
+
 1;
-- 
2.39.2