webdav sync core codec

1 files changed, 144 insertions, 0 deletions

diff --git a/aero-dav/src/syncencoder.rs b/aero-dav/src/syncencoder.rs
new file mode 100644
index 0000000..22b288b
--- /dev/null
+++ b/aero-dav/src/syncencoder.rs
@@ -0,0 +1,144 @@
+use quick_xml::events::{BytesText, Event};
+use quick_xml::Error as QError;
+
+use super::synctypes::*;
+use super::types::Extension;
+use super::xml::{IWrite, QWrite, Writer};
+
+impl<E: Extension> QWrite for SyncCollection<E> {
+    async fn qwrite(&self, xml: &mut Writer<impl IWrite>) -> Result<(), QError> {
+        let start = xml.create_dav_element("sync-collection");
+        let end = start.to_end();
+
+        xml.q.write_event_async(Event::Start(start.clone())).await?;
+        self.sync_token.qwrite(xml).await?;
+        self.sync_level.qwrite(xml).await?;
+        if let Some(limit) = &self.limit {
+            limit.qwrite(xml).await?;
+        }
+        self.prop.qwrite(xml).await?;
+        xml.q.write_event_async(Event::End(end)).await
+    }
+}
+
+impl QWrite for SyncTokenRequest {
+    async fn qwrite(&self, xml: &mut Writer<impl IWrite>) -> Result<(), QError> {
+        let start = xml.create_dav_element("sync-token");
+
+        match self {
+            Self::InitialSync => xml.q.write_event_async(Event::Empty(start)).await,
+            Self::IncrementalSync(uri) => {
+                let end = start.to_end();
+                xml.q.write_event_async(Event::Start(start.clone())).await?;
+                xml.q
+                    .write_event_async(Event::Text(BytesText::new(uri.as_str())))
+                    .await?;
+                xml.q.write_event_async(Event::End(end)).await
+            }
+        }
+    }
+}
+
+impl QWrite for SyncToken {
+    async fn qwrite(&self, xml: &mut Writer<impl IWrite>) -> Result<(), QError> {
+        let start = xml.create_dav_element("sync-token");
+        let end = start.to_end();
+
+        xml.q.write_event_async(Event::Start(start.clone())).await?;
+        xml.q
+            .write_event_async(Event::Text(BytesText::new(self.0.as_str())))
+            .await?;
+        xml.q.write_event_async(Event::End(end)).await
+    }
+}
+
+impl QWrite for SyncLevel {
+    async fn qwrite(&self, xml: &mut Writer<impl IWrite>) -> Result<(), QError> {
+        let start = xml.create_dav_element("sync-level");
+        let end = start.to_end();
+        let text = match self {
+            Self::One => "1",
+            Self::Infinite => "infinite",
+        };
+
+        xml.q.write_event_async(Event::Start(start.clone())).await?;
+        xml.q
+            .write_event_async(Event::Text(BytesText::new(text)))
+            .await?;
+        xml.q.write_event_async(Event::End(end)).await
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use crate::realization::All;
+    use crate::types as dav;
+    use crate::versioningtypes as vers;
+    use crate::xml::Node;
+    use crate::xml::Reader;
+    use tokio::io::AsyncWriteExt;
+
+    async fn serialize_deserialize<T: Node<T>>(src: &T) {
+        let mut buffer = Vec::new();
+        let mut tokio_buffer = tokio::io::BufWriter::new(&mut buffer);
+        let q = quick_xml::writer::Writer::new_with_indent(&mut tokio_buffer, b' ', 4);
+        let ns_to_apply = vec![
+            ("xmlns:D".into(), "DAV:".into()),
+            ("xmlns:C".into(), "urn:ietf:params:xml:ns:caldav".into()),
+        ];
+        let mut writer = Writer { q, ns_to_apply };
+
+        src.qwrite(&mut writer).await.expect("xml serialization");
+        tokio_buffer.flush().await.expect("tokio buffer flush");
+        let got = std::str::from_utf8(buffer.as_slice()).unwrap();
+
+        // deserialize
+        let mut rdr = Reader::new(quick_xml::NsReader::from_reader(got.as_bytes()))
+            .await
+            .unwrap();
+        let res = rdr.find().await.unwrap();
+
+        // check
+        assert_eq!(src, &res);
+    }
+
+    #[tokio::test]
+    async fn sync_level() {
+        serialize_deserialize(&SyncLevel::One).await;
+        serialize_deserialize(&SyncLevel::Infinite).await;
+    }
+
+    #[tokio::test]
+    async fn sync_token_request() {
+        serialize_deserialize(&SyncTokenRequest::InitialSync).await;
+        serialize_deserialize(&SyncTokenRequest::IncrementalSync(
+            "http://example.com/ns/sync/1232".into(),
+        ))
+        .await;
+    }
+
+    #[tokio::test]
+    async fn sync_token() {
+        serialize_deserialize(&SyncToken("http://example.com/ns/sync/1232".into())).await;
+    }
+
+    #[tokio::test]
+    async fn sync_collection() {
+        serialize_deserialize(&SyncCollection::<All> {
+            sync_token: SyncTokenRequest::IncrementalSync("http://example.com/ns/sync/1232".into()),
+            sync_level: SyncLevel::One,
+            limit: Some(vers::Limit(vers::NResults(100))),
+            prop: dav::PropName(vec![dav::PropertyRequest::GetEtag]),
+        })
+        .await;
+
+        serialize_deserialize(&SyncCollection::<All> {
+            sync_token: SyncTokenRequest::InitialSync,
+            sync_level: SyncLevel::Infinite,
+            limit: None,
+            prop: dav::PropName(vec![dav::PropertyRequest::GetEtag]),
+        })
+        .await;
+    }
+}