92 lines
2.9 KiB
Rust
92 lines
2.9 KiB
Rust
#![allow(dead_code)]
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// See https://support.google.com/podcast-publishers/answer/9889544
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// for some reasonably guidelines for how a podcast RSS feed should look.
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use std::fmt;
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use std::borrow::Cow;
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#[derive(Debug, serde::Deserialize)]
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pub struct Feed<'a> {
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pub (crate) rss : Rss<'a>,
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}
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#[derive(Debug, serde::Deserialize)]
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pub struct Rss<'a> {
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pub (crate) channel : Channel<'a>,
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}
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#[derive(Debug, serde::Deserialize)]
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pub struct Channel<'a> {
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#[serde(rename = "item", default)]
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pub (crate) items : Vec<Item<'a>>,
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pub (crate) link : Cow<'a, str>,
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pub (crate) title : Cow<'a, str>,
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pub (crate) description : Option<Cow<'a, str>>,
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#[serde(rename = "{http://www.itunes.com/dtds/podcast-1.0.dtd}itunes:author")]
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pub (crate) author : Option<Cow<'a, str>>,
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#[serde(rename = "{http://www.itunes.com/dtds/podcast-1.0.dtd}itunes:summary")]
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pub (crate) summary : Option<Cow<'a, str>>,
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#[serde(rename = "{http://www.itunes.com/dtds/podcast-1.0.dtd}itunes:image")]
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pub (crate) itunes_image : Option<ItunesImage<'a>>,
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pub (crate) image : Option<Image<'a>>,
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}
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#[derive(Debug, serde::Deserialize)]
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pub struct Image<'a> {
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pub (crate) link : Cow<'a, str>,
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pub (crate) title : Cow<'a, str>,
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pub (crate) url : Cow<'a, str>,
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}
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#[derive(Debug, serde::Deserialize)]
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pub struct ItunesImage<'a> {
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#[serde(rename = "$attr:href")]
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pub (crate) href : Cow<'a, str>,
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}
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fn deserialize_publish_date<'de, D : serde::de::Deserializer<'de>> (
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deserializer : D
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) -> Result<chrono::NaiveDateTime, D::Error> {
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struct Visitor;
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impl<'de> serde::de::Visitor<'de> for Visitor {
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type Value = chrono::NaiveDateTime;
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fn expecting(&self, formatter : &mut fmt::Formatter) -> fmt::Result {
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formatter.write_str("a string containing json data")
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}
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fn visit_str<E : serde::de::Error>(self, input : &str) -> Result<Self::Value, E> {
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chrono::NaiveDateTime::parse_from_str(
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input,
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"%a, %d %b %Y %H:%M:%S %Z"
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).map_err(E::custom)
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}
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}
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deserializer.deserialize_any(Visitor)
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}
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#[derive(Debug, serde::Deserialize)]
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pub struct Item<'a> {
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pub (crate) title : Cow<'a, str>,
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pub (crate) enclosure : Option<Enclosure<'a>>,
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pub (crate) description : Option<Cow<'a, str>>,
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#[serde(rename = "{http://www.itunes.com/dtds/podcast-1.0.dtd}itunes:summary")]
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pub (crate) summary : Option<Cow<'a, str>>,
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#[serde(rename = "pubDate", deserialize_with = "deserialize_publish_date")]
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pub (crate) published : chrono::NaiveDateTime,
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pub (crate) guid : Option<Cow<'a, str>>,
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}
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#[derive(Debug, serde::Deserialize)]
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pub struct Enclosure<'a> {
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#[serde(rename = "$attr:url")]
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pub (crate) url : Cow<'a, str>,
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#[serde(rename = "$attr:type")]
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pub (crate) mime_type : Option<Cow<'a, str>>,
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#[serde(rename = "$attr:length")]
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pub (crate) length : Option<u64>,
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}
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