alemi/upub
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feat(mdhtml): allow setting media proxy for imgs

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əlemi 2024-06-07 06:29:50 +02:00
parent 43aea48816
commit 03314b1615
Signed by: alemi
GPG key ID: A4895B84D311642C
2 changed files with 24 additions and 14 deletions
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2
utils/mdhtml/Cargo.toml
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@ -1,6 +1,6 @@
[package] [package]
name = "mdhtml" name = "mdhtml"
version = "0.1.0" version = "0.1.1"
edition = "2021" edition = "2021"
authors = [ "alemi <me@alemi.dev>" ] authors = [ "alemi <me@alemi.dev>" ]
description = "Parse and display a markdown-like HTML subset" description = "Parse and display a markdown-like HTML subset"

36
utils/mdhtml/lib.rs
View file

@ -4,7 +4,10 @@ use comrak::{markdown_to_html, Options};
/// In our case, our sink only contains a tokens vector /// In our case, our sink only contains a tokens vector
#[derive(Debug, Clone, Default)] #[derive(Debug, Clone, Default)]
struct Sink(String); struct Sink {
pub media_proxy: Option<String>,
pub buffer: String,
}
impl TokenSink for Sink { impl TokenSink for Sink {
type Handle = (); type Handle = ();
@ -22,21 +25,28 @@ impl TokenSink for Sink {
| "img" | "a" | "img" | "a"
) { return TokenSinkResult::Continue } // skip this tag ) { return TokenSinkResult::Continue } // skip this tag
self.0.push('<'); self.buffer.push('<');
if !tag.self_closing && matches!(tag.kind, TagKind::EndTag) { if !tag.self_closing && matches!(tag.kind, TagKind::EndTag) {
self.0.push('/'); self.buffer.push('/');
} }
self.0.push_str(tag.name.as_ref()); self.buffer.push_str(tag.name.as_ref());
if !matches!(tag.kind, TagKind::EndTag) { if !matches!(tag.kind, TagKind::EndTag) {
match tag.name.as_ref() { match tag.name.as_ref() {
"img" => for attr in tag.attrs { "img" => for attr in tag.attrs {
match attr.name.local.as_ref() { match attr.name.local.as_ref() {
"src" => self.0.push_str(&format!(" src=\"{}\"", attr.value.as_ref())), "src" => {
"title" => self.0.push_str(&format!(" title=\"{}\"", attr.value.as_ref())), let src = if let Some(ref proxy) = self.media_proxy {
"alt" => self.0.push_str(&format!(" alt=\"{}\"", attr.value.as_ref())), format!("{proxy}{}", attr.value.as_ref())
} else {
attr.value.to_string()
};
self.buffer.push_str(&format!(" src=\"{src}\""))
},
"title" => self.buffer.push_str(&format!(" title=\"{}\"", attr.value.as_ref())),
"alt" => self.buffer.push_str(&format!(" alt=\"{}\"", attr.value.as_ref())),
_ => {}, _ => {},
} }
}, },
@ -44,13 +54,13 @@ impl TokenSink for Sink {
let any_attr = !tag.attrs.is_empty(); let any_attr = !tag.attrs.is_empty();
for attr in tag.attrs { for attr in tag.attrs {
match attr.name.local.as_ref() { match attr.name.local.as_ref() {
"href" => self.0.push_str(&format!(" href=\"{}\"", attr.value.as_ref())), "href" => self.buffer.push_str(&format!(" href=\"{}\"", attr.value.as_ref())),
"title" => self.0.push_str(&format!(" title=\"{}\"", attr.value.as_ref())), "title" => self.buffer.push_str(&format!(" title=\"{}\"", attr.value.as_ref())),
_ => {}, _ => {},
} }
} }
if any_attr { if any_attr {
self.0.push_str(" rel=\"nofollow noreferrer\" target=\"_blank\""); self.buffer.push_str(" rel=\"nofollow noreferrer\" target=\"_blank\"");
} }
}, },
_ => {}, _ => {},
@ -58,12 +68,12 @@ impl TokenSink for Sink {
} }
if tag.self_closing { if tag.self_closing {
self.0.push('/'); self.buffer.push('/');
} }
self.0.push('>'); self.buffer.push('>');
}, },
Token::CharacterTokens(txt) => self.0.push_str(txt.as_ref()), Token::CharacterTokens(txt) => self.buffer.push_str(txt.as_ref()),
Token::CommentToken(_) => {}, Token::CommentToken(_) => {},
Token::DoctypeToken(_) => {}, Token::DoctypeToken(_) => {},
Token::NullCharacterToken => {}, Token::NullCharacterToken => {},