102 lines
3.4 KiB
Rust
102 lines
3.4 KiB
Rust
use std::io::Cursor;
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use futures::stream::{StreamExt, TryStreamExt};
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use quick_xml::Error;
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use quick_xml::events::{Event, BytesEnd, BytesStart, BytesText};
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use quick_xml::writer::{ElementWriter, Writer};
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use quick_xml::name::PrefixDeclaration;
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use tokio::io::AsyncWrite;
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use super::types::*;
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//@FIXME a cleaner way to manager namespace would be great
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//but at the same time, the quick-xml library is not cooperating.
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//So instead of writing many cursed workarounds - I tried, I am just hardcoding the namespaces...
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pub trait Encode {
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async fn write(&self, xml: &mut Writer<impl AsyncWrite + Unpin>) -> Result<(), Error>;
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}
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impl Encode for Href {
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async fn write(&self, xml: &mut Writer<impl AsyncWrite + Unpin>) -> Result<(), Error> {
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xml.create_element("D:href")
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.write_text_content_async(BytesText::new(&self.0))
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.await?;
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Ok(())
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}
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}
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impl<T> Encode for Multistatus<T> {
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async fn write(&self, xml: &mut Writer<impl AsyncWrite + Unpin>) -> Result<(), Error> {
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xml.create_element("D:multistatus")
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.with_attribute(("xmlns:D", "DAV:"))
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.write_inner_content_async::<_, _, quick_xml::Error>(|inner_xml| async move {
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for response in self.responses.iter() {
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response.write(inner_xml).await?;
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}
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if let Some(description) = &self.responsedescription {
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description.write(inner_xml).await?;
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}
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Ok(inner_xml)
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})
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.await?;
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Ok(())
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}
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}
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impl<T> Encode for Response<T> {
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async fn write(&self, xml: &mut Writer<impl AsyncWrite + Unpin>) -> Result<(), Error> {
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unimplemented!();
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}
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}
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impl Encode for ResponseDescription {
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async fn write(&self, xml: &mut Writer<impl AsyncWrite + Unpin>) -> Result<(), Error> {
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xml.create_element("D:responsedescription")
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.write_text_content_async(BytesText::new(&self.0))
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.await?;
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Ok(())
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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use tokio::io::AsyncWriteExt;
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/// To run only the unit tests and avoid the behavior ones:
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/// cargo test --bin aerogramme
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#[tokio::test]
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async fn test_href() {
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let mut buffer = Vec::new();
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let mut tokio_buffer = tokio::io::BufWriter::new(&mut buffer);
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let mut writer = Writer::new_with_indent(&mut tokio_buffer, b' ', 4);
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Href("/SOGo/dav/so/".into()).write(&mut writer).await.expect("xml serialization");
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tokio_buffer.flush().await.expect("tokio buffer flush");
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assert_eq!(buffer.as_slice(), &b"<D:href>/SOGo/dav/so/</D:href>"[..]);
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}
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#[tokio::test]
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async fn test_multistatus() {
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let mut buffer = Vec::new();
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let mut tokio_buffer = tokio::io::BufWriter::new(&mut buffer);
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let mut writer = Writer::new_with_indent(&mut tokio_buffer, b' ', 4);
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let xml: Multistatus<u64> = Multistatus { responses: vec![], responsedescription: Some(ResponseDescription("Hello world".into())) };
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xml.write(&mut writer).await.expect("xml serialization");
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tokio_buffer.flush().await.expect("tokio buffer flush");
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let expected = r#"<D:multistatus xmlns:D="DAV:">
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<D:responsedescription>Hello world</D:responsedescription>
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</D:multistatus>"#;
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let got = std::str::from_utf8(buffer.as_slice()).unwrap();
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assert_eq!(got, expected);
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}
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}
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