[pve-devel] [PATCH v4 proxmox-perl-rs 26/69] add PVE::RS::Notify module

[Lukas Wagner <l.wagner@proxmox.com>]

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

Notes:
    Changes since v3:
        - parse_config now takes a &[u8] instead of a &str
          in order to avoid encoding issues

 pve-rs/Cargo.toml    |  1 +
 pve-rs/Makefile      |  1 +
 pve-rs/src/lib.rs    |  1 +
 pve-rs/src/notify.rs | 74 ++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 77 insertions(+)
 create mode 100644 pve-rs/src/notify.rs

diff --git a/pve-rs/Cargo.toml b/pve-rs/Cargo.toml
index 3076a13..b28c118 100644
--- a/pve-rs/Cargo.toml
+++ b/pve-rs/Cargo.toml
@@ -34,6 +34,7 @@ perlmod = { version = "0.13", features = [ "exporter" ] }
 
 proxmox-apt = "0.10"
 proxmox-http = { version = "0.9", features = ["client-sync", "client-trait"] }
+proxmox-notify = "0.1"
 proxmox-openid = "0.10"
 proxmox-resource-scheduling = "0.3.0"
 proxmox-subscription = "0.4"
diff --git a/pve-rs/Makefile b/pve-rs/Makefile
index de35c69..9d737c0 100644
--- a/pve-rs/Makefile
+++ b/pve-rs/Makefile
@@ -27,6 +27,7 @@ PERLMOD_GENPACKAGE := /usr/lib/perlmod/genpackage.pl \
 
 PERLMOD_PACKAGES := \
 	  PVE::RS::APT::Repositories \
+	  PVE::RS::Notify \
 	  PVE::RS::OpenId \
 	  PVE::RS::ResourceScheduling::Static \
 	  PVE::RS::TFA
diff --git a/pve-rs/src/lib.rs b/pve-rs/src/lib.rs
index eb6ae02..0d63c28 100644
--- a/pve-rs/src/lib.rs
+++ b/pve-rs/src/lib.rs
@@ -4,6 +4,7 @@
 pub mod common;
 
 pub mod apt;
+pub mod notify;
 pub mod openid;
 pub mod resource_scheduling;
 pub mod tfa;
diff --git a/pve-rs/src/notify.rs b/pve-rs/src/notify.rs
new file mode 100644
index 0000000..6ea9b78
--- /dev/null
+++ b/pve-rs/src/notify.rs
@@ -0,0 +1,74 @@
+#[perlmod::package(name = "PVE::RS::Notify")]
+mod export {
+    use anyhow::{bail, Error};
+    use perlmod::Value;
+
+    use std::sync::Mutex;
+
+    use proxmox_notify::Config;
+
+    pub struct NotificationConfig {
+        config: Mutex<Config>,
+    }
+
+    perlmod::declare_magic!(Box<NotificationConfig> : &NotificationConfig as "PVE::RS::Notify");
+
+    /// Support `dclone` so this can be put into the `ccache` of `PVE::Cluster`.
+    #[export(name = "STORABLE_freeze", raw_return)]
+    fn storable_freeze(
+        #[try_from_ref] this: &NotificationConfig,
+        cloning: bool,
+    ) -> Result<Value, Error> {
+        if !cloning {
+            bail!("freezing Notification config not supported!");
+        }
+
+        let mut cloned = Box::new(NotificationConfig {
+            config: Mutex::new(this.config.lock().unwrap().clone()),
+        });
+        let value = Value::new_pointer::<NotificationConfig>(&mut *cloned);
+        let _perl = Box::leak(cloned);
+        Ok(value)
+    }
+
+    /// Instead of `thaw` we implement `attach` for `dclone`.
+    #[export(name = "STORABLE_attach", raw_return)]
+    fn storable_attach(
+        #[raw] class: Value,
+        cloning: bool,
+        #[raw] serialized: Value,
+    ) -> Result<Value, Error> {
+        if !cloning {
+            bail!("STORABLE_attach called with cloning=false");
+        }
+        let data = unsafe { Box::from_raw(serialized.pv_raw::<NotificationConfig>()?) };
+        Ok(perlmod::instantiate_magic!(&class, MAGIC => data))
+    }
+
+    #[export(raw_return)]
+    fn parse_config(
+        #[raw] class: Value,
+        raw_config: &[u8],
+        raw_private_config: &[u8],
+    ) -> Result<Value, Error> {
+        let raw_config = std::str::from_utf8(raw_config)?;
+        let raw_private_config = std::str::from_utf8(raw_private_config)?;
+
+        Ok(perlmod::instantiate_magic!(&class, MAGIC => Box::new(
+            NotificationConfig {
+                config: Mutex::new(Config::new(raw_config, raw_private_config)?)
+            }
+        )))
+    }
+
+    #[export]
+    fn write_config(#[try_from_ref] this: &NotificationConfig) -> Result<(String, String), Error> {
+        Ok(this.config.lock().unwrap().write()?)
+    }
+
+    #[export]
+    fn digest(#[try_from_ref] this: &NotificationConfig) -> String {
+        let config = this.config.lock().unwrap();
+        hex::encode(config.digest())
+    }
+}
-- 
2.39.2