[PATCH pve-manager v3 14/17] api: add API routes 'plugins' and 'plugins/storage'

["Max R. Carrara" <m.carrara@proxmox.com>]

Add the `plugins` route to our API and handle it via its own module,
`API2/Plugins.pm`. Implement a GET endpoint for this route, which just
lists its subpaths.

Additionally, add the `plugins/storage` path to the API and let all
corresponding endpoints be handled by the
`PVE::API2::Plugins::Storage` module, which is part of the
`libpve-storage-perl` package.

This means that the following routes are now available:
* plugins
* plugins/storage
* plugins/storage/plugin
* plugins/storage/plugin/{type}

Signed-off-by: Max R. Carrara <m.carrara@proxmox.com>
---
 PVE/API2.pm         |  6 +++++
 PVE/API2/Makefile   |  1 +
 PVE/API2/Plugins.pm | 61 +++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 68 insertions(+)
 create mode 100644 PVE/API2/Plugins.pm

diff --git a/PVE/API2.pm b/PVE/API2.pm
index 9f1ec961..cf158182 100644
--- a/PVE/API2.pm
+++ b/PVE/API2.pm
@@ -15,6 +15,7 @@ use base qw(PVE::RESTHandler);
 use PVE::API2::AccessControl;
 use PVE::API2::Cluster;
 use PVE::API2::Nodes;
+use PVE::API2::Plugins;
 use PVE::API2::Pool;
 use PVE::API2::Storage::Config;
 
@@ -33,6 +34,11 @@ __PACKAGE__->register_method({
     path => 'nodes',
 });
 
+__PACKAGE__->register_method({
+    subclass => "PVE::API2::Plugins",
+    path => 'plugins',
+});
+
 __PACKAGE__->register_method({
     subclass => "PVE::API2::Pool",
     path => 'pools',
diff --git a/PVE/API2/Makefile b/PVE/API2/Makefile
index 97f1cc20..97910009 100644
--- a/PVE/API2/Makefile
+++ b/PVE/API2/Makefile
@@ -17,6 +17,7 @@ PERLSOURCE = 			\
 	Network.pm		\
 	NodeConfig.pm		\
 	Nodes.pm		\
+	Plugins.pm		\
 	Pool.pm			\
 	Replication.pm		\
 	ReplicationConfig.pm	\
diff --git a/PVE/API2/Plugins.pm b/PVE/API2/Plugins.pm
new file mode 100644
index 00000000..beb606e6
--- /dev/null
+++ b/PVE/API2/Plugins.pm
@@ -0,0 +1,61 @@
+package PVE::API2::Plugins;
+
+use v5.36;
+
+use PVE::RESTHandler;
+use base qw(PVE::RESTHandler);
+
+use PVE::API2::Plugins::Storage;
+
+__PACKAGE__->register_method({
+    subclass => "PVE::API2::Plugins::Storage",
+    path => 'storage',
+});
+
+__PACKAGE__->register_method({
+    name => 'index',
+    path => '',
+    method => 'GET',
+    permissions => {
+        user => 'all',
+    },
+    description => "Directory index.",
+    parameters => {
+        additionalProperties => 0,
+        properties => {},
+    },
+    returns => {
+        type => 'array',
+        items => {
+            type => 'object',
+            properties => {
+                subdir => {
+                    type => 'string',
+                },
+            },
+        },
+        links => [
+            {
+                rel => 'child',
+                href => "{subdir}",
+            },
+        ],
+    },
+    code => sub($param) {
+        my $result = [];
+
+        my $attrs = PVE::API2::Plugins->method_attributes();
+
+        for my $info ($attrs->@*) {
+            next if !$info->{subclass};
+
+            my $subpath = $info->{match_re}->[0];
+
+            push $result->@*, { subdir => $subpath };
+        }
+
+        return $result;
+    },
+});
+
+1;
-- 
2.47.3