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Update pulldown_cmark dep to v0.10, and add pulldown_cmark_escape dep. (#2432)

Browse source 
The pulldown_cmark escaping functionality is now shipped in a separate
pulldown_cmark_escape crate
(https://crates.io/crates/pulldown-cmark-escape), starting with v0.10.0.

The markdown.rs module has to be adapted to a few API changes in
pulldown_cmark, and we have to introduce explicit handling of <img> alt
text to ensure it continues to be properly escaped.

There are also a few other behavior changes that are caught by the
tests, but these actually seem to be desired, so I've updated the insta
snapshot files for those tests to incorporate those changes.
Specifically, one footnote-parsing case seems to be handled better now,
and pulldown-cmark's `push_html` now doesn't escape quotes in text nodes
anymore (see https://github.com/pulldown-cmark/pulldown-cmark/pull/836).
This commit is contained in:
Timon Van Overveldt 2024-02-18 12:57:17 -08:00 committed by Vincent Prouillet
parent 80bcc51fd2
commit 13682e1342
9 changed files with 94 additions and 48 deletions
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1
CHANGELOG.md
View file

@ -2,6 +2,7 @@
## 0.19.0 (unreleased)
- Updates the pulldown-cmark dependency to v0.10.0. This improves footnote handling, and may also introduce some minor behavior changes such as reducing the amount of unnecessary HTML-escaping of text content.
## 0.18.0 (2023-12-18)

23
Cargo.lock generated
View file

@ -1736,7 +1736,8 @@ dependencies = [
"num-format",
"once_cell",
"percent-encoding",
"pulldown-cmark",
"pulldown-cmark 0.10.0",
"pulldown-cmark-escape",
"quickxml_to_serde",
"rayon",
"regex",
@ -2775,6 +2776,24 @@ dependencies = [
"unicase",
]
[[package]]
name = "pulldown-cmark"
version = "0.10.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "dce76ce678ffc8e5675b22aa1405de0b7037e2fdf8913fea40d1926c6fe1e6e7"
dependencies = [
"bitflags 2.4.1",
"memchr",
"pulldown-cmark-escape",
"unicase",
]
[[package]]
name = "pulldown-cmark-escape"
version = "0.10.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d5d8f9aa0e3cbcfaf8bf00300004ee3b72f74770f9cbac93f6928771f613276b"
[[package]]
name = "pure-rust-locales"
version = "0.7.0"
@ -3341,7 +3360,7 @@ dependencies = [
"cargo_metadata",
"error-chain",
"glob",
"pulldown-cmark",
"pulldown-cmark 0.9.3",
"tempfile",
"walkdir",
]

3
components/libs/Cargo.toml
View file

@ -21,7 +21,8 @@ nom-bibtex = "0.5"
num-format = "0.4"
once_cell = "1"
percent-encoding = "2"
pulldown-cmark = { version = "0.9", default-features = false, features = ["simd"] }
pulldown-cmark = { version = "0.10", default-features = false, features = ["html", "simd"] }
pulldown-cmark-escape = { version = "0.10", default-features = false }
quickxml_to_serde = "0.5"
rayon = "1"
regex = "1"

1
components/libs/src/lib.rs
View file

@ -23,6 +23,7 @@ pub use num_format;
pub use once_cell;
pub use percent_encoding;
pub use pulldown_cmark;
pub use pulldown_cmark_escape;
pub use quickxml_to_serde;
pub use rayon;
pub use regex;

88
components/markdown/src/markdown.rs
View file

@ -4,19 +4,20 @@ use errors::bail;
use libs::gh_emoji::Replacer as EmojiReplacer;
use libs::once_cell::sync::Lazy;
use libs::pulldown_cmark as cmark;
use libs::pulldown_cmark_escape as cmark_escape;
use libs::tera;
use utils::net::is_external_link;
use crate::context::RenderContext;
use errors::{Context, Error, Result};
use libs::pulldown_cmark::escape::escape_html;
use libs::pulldown_cmark_escape::escape_html;
use libs::regex::{Regex, RegexBuilder};
use utils::site::resolve_internal_link;
use utils::slugs::slugify_anchors;
use utils::table_of_contents::{make_table_of_contents, Heading};
use utils::types::InsertAnchor;
use self::cmark::{Event, LinkType, Options, Parser, Tag};
use self::cmark::{Event, LinkType, Options, Parser, Tag, TagEnd};
use crate::codeblock::{CodeBlock, FenceSettings};
use crate::shortcode::{Shortcode, SHORTCODE_PLACEHOLDER};
@ -220,15 +221,15 @@ fn get_heading_refs(events: &[Event]) -> Vec<HeadingRef> {
for (i, event) in events.iter().enumerate() {
match event {
Event::Start(Tag::Heading(level, anchor, classes)) => {
Event::Start(Tag::Heading { level, id, classes, .. }) => {
heading_refs.push(HeadingRef::new(
i,
*level as u32,
anchor.map(|a| a.to_owned()),
id.clone().map(|a| a.to_string()),
&classes.iter().map(|x| x.to_string()).collect::<Vec<_>>(),
));
}
Event::End(Tag::Heading(_, _, _)) => {
Event::End(TagEnd::Heading { .. }) => {
heading_refs.last_mut().expect("Heading end before start?").end_idx = i;
}
_ => (),
@ -254,6 +255,10 @@ pub fn markdown_to_html(
let mut error = None;
let mut code_block: Option<CodeBlock> = None;
// Indicates whether we're in the middle of parsing a text node which will be placed in an HTML
// attribute, and which hence has to be escaped using escape_html rather than push_html's
// default HTML body escaping for text nodes.
let mut inside_attribute = false;
let mut headings: Vec<Heading> = vec![];
let mut internal_links = Vec::new();
@ -294,12 +299,19 @@ pub fn markdown_to_html(
// we have some text before the shortcode, push that first
if $range.start != sc_span.start {
let content = $text[($range.start - orig_range_start)
..(sc_span.start - orig_range_start)]
.to_string()
.into();
let content: cmark::CowStr<'_> =
$text[($range.start - orig_range_start)
..(sc_span.start - orig_range_start)]
.to_string()
.into();
events.push(if $is_text {
Event::Text(content)
if inside_attribute {
let mut buffer = "".to_string();
escape_html(&mut buffer, content.as_ref()).unwrap();
Event::Html(buffer.into())
} else {
Event::Text(content)
}
} else {
Event::Html(content)
});
@ -370,7 +382,13 @@ pub fn markdown_to_html(
};
if !contains_shortcode(text.as_ref()) {
events.push(Event::Text(text));
if inside_attribute {
let mut buffer = "".to_string();
escape_html(&mut buffer, text.as_ref()).unwrap();
events.push(Event::Html(buffer.into()));
} else {
events.push(Event::Text(text));
}
continue;
}
@ -386,7 +404,7 @@ pub fn markdown_to_html(
code_block = Some(block);
events.push(Event::Html(begin.into()));
}
Event::End(Tag::CodeBlock(_)) => {
Event::End(TagEnd::CodeBlock { .. }) => {
if let Some(ref mut code_block) = code_block {
let html = code_block.highlight(&accumulated_block);
events.push(Event::Html(html.into()));
@ -397,44 +415,53 @@ pub fn markdown_to_html(
code_block = None;
events.push(Event::Html("</code></pre>\n".into()));
}
Event::Start(Tag::Image(link_type, src, title)) => {
let link = if is_colocated_asset_link(&src) {
let link = format!("{}{}", context.current_page_permalink, &*src);
Event::Start(Tag::Image { link_type, dest_url, title, id }) => {
let link = if is_colocated_asset_link(&dest_url) {
let link = format!("{}{}", context.current_page_permalink, &*dest_url);
link.into()
} else {
src
dest_url
};
events.push(if lazy_async_image {
let mut img_before_alt: String = "<img src=\"".to_string();
cmark::escape::escape_href(&mut img_before_alt, &link)
cmark_escape::escape_href(&mut img_before_alt, &link)
.expect("Could not write to buffer");
if !title.is_empty() {
img_before_alt
.write_str("\" title=\"")
.expect("Could not write to buffer");
cmark::escape::escape_href(&mut img_before_alt, &title)
cmark_escape::escape_href(&mut img_before_alt, &title)
.expect("Could not write to buffer");
}
img_before_alt.write_str("\" alt=\"").expect("Could not write to buffer");
inside_attribute = true;
Event::Html(img_before_alt.into())
} else {
Event::Start(Tag::Image(link_type, link, title))
inside_attribute = false;
Event::Start(Tag::Image { link_type, dest_url: link, title, id })
});
}
Event::End(Tag::Image(..)) => events.push(if lazy_async_image {
Event::End(TagEnd::Image) => events.push(if lazy_async_image {
Event::Html("\" loading=\"lazy\" decoding=\"async\" />".into())
} else {
event
}),
Event::Start(Tag::Link(link_type, link, title)) if link.is_empty() => {
Event::Start(Tag::Link { link_type, dest_url, title, id })
if dest_url.is_empty() =>
{
error = Some(Error::msg("There is a link that is missing a URL"));
events.push(Event::Start(Tag::Link(link_type, "#".into(), title)));
events.push(Event::Start(Tag::Link {
link_type,
dest_url: "#".into(),
title,
id,
}));
}
Event::Start(Tag::Link(link_type, link, title)) => {
Event::Start(Tag::Link { link_type, dest_url, title, id }) => {
let fixed_link = match fix_link(
link_type,
&link,
&dest_url,
context,
&mut internal_links,
&mut external_links,
@ -448,12 +475,12 @@ pub fn markdown_to_html(
};
events.push(
if is_external_link(&link)
if is_external_link(&dest_url)
&& context.config.markdown.has_external_link_tweaks()
{
let mut escaped = String::new();
// write_str can fail but here there are no reasons it should (afaik?)
cmark::escape::escape_href(&mut escaped, &link)
cmark_escape::escape_href(&mut escaped, &dest_url)
.expect("Could not write to buffer");
Event::Html(
context
@ -463,7 +490,12 @@ pub fn markdown_to_html(
.into(),
)
} else {
Event::Start(Tag::Link(link_type, fixed_link.into(), title))
Event::Start(Tag::Link {
link_type,
dest_url: fixed_link.into(),
title,
id,
})
},
)
}
@ -485,7 +517,7 @@ pub fn markdown_to_html(
events.push(event);
}
Event::End(Tag::Paragraph) => {
Event::End(TagEnd::Paragraph) => {
events.push(if stop_next_end_p {
stop_next_end_p = false;
Event::Html("".into())

6
components/markdown/tests/snapshots/markdown__all_markdown_features_integration.snap
View file

@ -1,8 +1,6 @@
---
source: components/rendering/tests/markdown.rs
assertion_line: 358
source: components/markdown/tests/markdown.rs
expression: body
---
<!-- Adapted from https://markdown-it.github.io/ -->
<h1 id="h1-heading">h1 Heading</h1>
@ -83,7 +81,7 @@ line 1 of code
line 2 of code
line 3 of code
</code></pre>
<p>Block code &quot;fences&quot;</p>
<p>Block code "fences"</p>
<pre><code>Sample text here...
</code></pre>
<p>Syntax highlighting</p>

8
components/markdown/tests/snapshots/markdown__can_handle_heading_ids-2.snap
View file

@ -1,12 +1,10 @@
---
source: components/rendering/tests/markdown.rs
assertion_line: 84
source: components/markdown/tests/markdown.rs
expression: body
---
<h1 id="Hello">Hello</h1>
<h1 id="Hello-1">Hello</h1>
<h1 id="L'écologie_et_vous">L'écologie et vous</h1>
<h1 id="L&#39;écologie_et_vous">L'écologie et vous</h1>
<h1 id="hello">Hello</h1>
<h1 id="hello">Hello</h1>
<h1 id="Something_else">Hello</h1>
@ -22,6 +20,6 @@ expression: body
<h1 id="text__there">text <sup class="footnote-reference"><a href="#1">1</a></sup> there</h1>
<div class="footnote-definition" id="1"><sup class="footnote-definition-label">1</sup>
<p>footnote</p>
<h1 id="classes" class="bold another">Classes</h1>
</div>
<h1 id="classes" class="bold another">Classes</h1>

6
components/markdown/tests/snapshots/markdown__can_handle_heading_ids.snap
View file

@ -1,8 +1,6 @@
---
source: components/rendering/tests/markdown.rs
assertion_line: 79
source: components/markdown/tests/markdown.rs
expression: body
---
<h1 id="hello-1">Hello</h1>
<h1 id="hello-2">Hello</h1>
@ -22,6 +20,6 @@ expression: body
<h1 id="text-there">text <sup class="footnote-reference"><a href="#1">1</a></sup> there</h1>
<div class="footnote-definition" id="1"><sup class="footnote-definition-label">1</sup>
<p>footnote</p>
<h1 id="classes" class="bold another">Classes</h1>
</div>
<h1 id="classes" class="bold another">Classes</h1>

6
components/markdown/tests/snapshots/shortcodes__doesnt_render_ignored_shortcodes.snap
View file

@ -1,8 +1,6 @@
---
source: components/rendering/tests/shortcodes.rs
assertion_line: 104
source: components/markdown/tests/shortcodes.rs
expression: body
---
<p>{{ youtube(id=&quot;w7Ft2ymGmfc&quot;) }}</p>
<p>{{ youtube(id="w7Ft2ymGmfc") }}</p>