carddav: Implement DAV Push

crates/dav/src/lib.rs

@@ -2,6 +2,7 @@ pub mod depth_header;
 pub mod error;
 pub mod namespace;
 pub mod privileges;
+pub mod push;
 pub mod resource;
 pub mod resources;
 pub mod xml;

crates/dav/src/push/mod.rs

@@ -0,0 +1,80 @@
+use rustical_xml::{XmlDeserialize, XmlRootTag, XmlSerialize};
+
+#[derive(Debug, Clone, XmlSerialize, PartialEq)]
+pub enum Transport {
+    #[xml(ns = "crate::namespace::NS_DAVPUSH")]
+    WebPush,
+}
+
+#[derive(Debug, Clone, XmlSerialize, PartialEq)]
+pub struct Transports {
+    #[xml(flatten, ty = "untagged")]
+    #[xml(ns = "crate::namespace::NS_DAVPUSH")]
+    transports: Vec<Transport>,
+}
+
+impl Default for Transports {
+    fn default() -> Self {
+        Self {
+            transports: vec![Transport::WebPush],
+        }
+    }
+}
+
+#[derive(XmlDeserialize, Clone, Debug, PartialEq)]
+#[xml(ns = "crate::namespace::NS_DAVPUSH")]
+pub struct WebPushSubscription {
+    #[xml(ns = "crate::namespace::NS_DAVPUSH")]
+    pub push_resource: String,
+}
+
+#[derive(XmlDeserialize, Clone, Debug, PartialEq)]
+pub struct SubscriptionElement {
+    #[xml(ns = "crate::namespace::NS_DAVPUSH")]
+    pub web_push_subscription: WebPushSubscription,
+}
+
+#[derive(XmlDeserialize, XmlRootTag, Clone, Debug, PartialEq)]
+#[xml(root = b"push-register")]
+#[xml(ns = "crate::namespace::NS_DAVPUSH")]
+pub struct PushRegister {
+    #[xml(ns = "crate::namespace::NS_DAVPUSH")]
+    pub subscription: SubscriptionElement,
+    #[xml(ns = "crate::namespace::NS_DAVPUSH")]
+    pub expires: Option<String>,
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use rustical_xml::XmlDocument;
+
+    #[test]
+    fn test_xml_push_register() {
+        let push_register = PushRegister::parse_str(
+            r#"
+            <?xml version="1.0" encoding="utf-8" ?>
+            <push-register xmlns="https://bitfire.at/webdav-push">
+                <subscription>
+                    <web-push-subscription>
+                        <push-resource>https://up.example.net/yohd4yai5Phiz1wi</push-resource>
+                    </web-push-subscription>
+                </subscription>
+                <expires>Wed, 20 Dec 2023 10:03:31 GMT</expires>
+            </push-register>
+    "#,
+        )
+        .unwrap();
+        assert_eq!(
+            push_register,
+            PushRegister {
+                subscription: SubscriptionElement {
+                    web_push_subscription: WebPushSubscription {
+                        push_resource: "https://up.example.net/yohd4yai5Phiz1wi".to_owned()
+                    }
+                },
+                expires: Some("Wed, 20 Dec 2023 10:03:31 GMT".to_owned())
+            }
+        )
+    }
+}