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@ -1,12 +1,11 @@
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use heck::CamelCase;
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use openssl::rand::rand_bytes;
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use pulldown_cmark::{html, Event, Options, Parser, Tag};
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use pulldown_cmark::{html, LinkType, Event, Options, Parser, Tag, CodeBlockKind, CowStr};
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use regex_syntax::is_word_character;
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use rocket::{
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http::uri::Uri,
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response::{Flash, Redirect},
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};
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use std::borrow::Cow;
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use std::collections::HashSet;
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use syntect::html::ClassedHTMLGenerator;
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use syntect::parsing::SyntaxSet;
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@ -51,10 +50,10 @@ enum State {
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fn to_inline(tag: Tag<'_>) -> Tag<'_> {
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match tag {
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Tag::Header(_) | Tag::Table(_) | Tag::TableHead | Tag::TableRow | Tag::TableCell => {
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Tag::Heading(_) | Tag::Table(_) | Tag::TableHead | Tag::TableRow | Tag::TableCell => {
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Tag::Paragraph
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}
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Tag::Image(url, title) => Tag::Link(url, title),
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Tag::Image(typ, url, title) => Tag::Link(typ, url, title),
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t => t,
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}
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}
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@ -66,21 +65,31 @@ fn highlight_code<'a>(
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evt: Event<'a>,
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) -> Option<Vec<Event<'a>>> {
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match evt {
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Event::Start(Tag::CodeBlock(lang)) => {
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if lang.is_empty() {
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Some(vec![Event::Start(Tag::CodeBlock(lang))])
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} else {
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*context = Some(HighlighterContext { content: vec![] });
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Some(vec![Event::Start(Tag::CodeBlock(lang))])
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Event::Start(Tag::CodeBlock(kind)) => {
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match &kind {
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CodeBlockKind::Fenced(lang) if !lang.is_empty() => {
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*context = Some(HighlighterContext { content: vec![] });
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},
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_ => {}
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}
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Some(vec![Event::Start(Tag::CodeBlock(kind))])
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}
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Event::End(Tag::CodeBlock(x)) => {
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Event::End(Tag::CodeBlock(kind)) => {
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let mut result = vec![];
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if let Some(ctx) = context.take() {
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let lang = if let CodeBlockKind::Fenced(lang) = &kind {
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if lang.is_empty() {
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unreachable!();
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} else {
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lang
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}
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} else {
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unreachable!();
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};
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let syntax_set = SyntaxSet::load_defaults_newlines();
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let syntax = syntax_set.find_syntax_by_token(&x).unwrap_or_else(|| {
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let syntax = syntax_set.find_syntax_by_token(&lang).unwrap_or_else(|| {
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syntax_set
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.find_syntax_by_name(&x)
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.find_syntax_by_name(&lang)
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.unwrap_or_else(|| syntax_set.find_syntax_plain_text())
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});
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let mut html = ClassedHTMLGenerator::new(&syntax, &syntax_set);
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@ -90,7 +99,7 @@ fn highlight_code<'a>(
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let q = html.finalize();
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result.push(Event::Html(q.into()));
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}
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result.push(Event::End(Tag::CodeBlock(x)));
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result.push(Event::End(Tag::CodeBlock(kind)));
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*context = None;
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Some(result)
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}
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@ -113,10 +122,10 @@ fn flatten_text<'a>(state: &mut Option<String>, evt: Event<'a>) -> Option<Vec<Ev
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prev_txt.push_str(&txt);
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(Some(prev_txt), vec![])
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}
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None => (Some(txt.into_owned()), vec![]),
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None => (Some(txt.into_string()), vec![]),
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},
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e => match state.take() {
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Some(prev) => (None, vec![Event::Text(Cow::Owned(prev)), e]),
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Some(prev) => (None, vec![Event::Text(CowStr::Boxed(prev.into())), e]),
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None => (None, vec![e]),
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},
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};
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@ -156,11 +165,11 @@ fn process_image<'a, 'b>(
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) -> Event<'a> {
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if let Some(ref processor) = *processor {
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match evt {
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Event::Start(Tag::Image(id, title)) => {
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Event::Start(Tag::Image(typ, id, title)) => {
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if let Some((url, cw)) = id.parse::<i32>().ok().and_then(processor.as_ref()) {
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if let (Some(cw), false) = (cw, inline) {
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// there is a cw, and where are not inline
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Event::Html(Cow::Owned(format!(
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Event::Html(CowStr::Boxed(format!(
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r#"<label for="postcontent-cw-{id}">
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<input type="checkbox" id="postcontent-cw-{id}" checked="checked" class="cw-checkbox">
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<span class="cw-container">
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@ -171,27 +180,27 @@ fn process_image<'a, 'b>(
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id = random_hex(),
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cw = cw,
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url = url
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)))
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).into()))
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} else {
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Event::Start(Tag::Image(Cow::Owned(url), title))
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Event::Start(Tag::Image(typ, CowStr::Boxed(url.into()), title))
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}
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} else {
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Event::Start(Tag::Image(id, title))
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Event::Start(Tag::Image(typ, id, title))
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}
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}
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Event::End(Tag::Image(id, title)) => {
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Event::End(Tag::Image(typ, id, title)) => {
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if let Some((url, cw)) = id.parse::<i32>().ok().and_then(processor.as_ref()) {
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if inline || cw.is_none() {
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Event::End(Tag::Image(Cow::Owned(url), title))
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Event::End(Tag::Image(typ, CowStr::Boxed(url.into()), title))
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} else {
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Event::Html(Cow::Borrowed(
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Event::Html(CowStr::Borrowed(
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r#""/>
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</span>
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</label>"#,
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))
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}
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} else {
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Event::End(Tag::Image(id, title))
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Event::End(Tag::Image(typ, id, title))
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}
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}
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e => e,
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@ -231,19 +240,19 @@ pub fn md_to_html<'a>(
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// Ignore headings, images, and tables if inline = true
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.scan((vec![], inline), inline_tags)
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.scan(&mut DocumentContext::default(), |ctx, evt| match evt {
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Event::Start(Tag::CodeBlock(_)) | Event::Start(Tag::Code) => {
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Event::Start(Tag::CodeBlock(_)) => {
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ctx.in_code = true;
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Some((vec![evt], vec![], vec![]))
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}
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Event::End(Tag::CodeBlock(_)) | Event::End(Tag::Code) => {
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Event::End(Tag::CodeBlock(_)) => {
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ctx.in_code = false;
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Some((vec![evt], vec![], vec![]))
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}
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Event::Start(Tag::Link(_, _)) => {
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Event::Start(Tag::Link(_, _, _)) => {
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ctx.in_link = true;
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Some((vec![evt], vec![], vec![]))
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}
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Event::End(Tag::Link(_, _)) => {
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Event::End(Tag::Link(_, _, _)) => {
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ctx.in_link = false;
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Some((vec![evt], vec![], vec![]))
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}
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@ -264,6 +273,7 @@ pub fn md_to_html<'a>(
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let mention = text_acc;
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let short_mention = mention.splitn(1, '@').next().unwrap_or("");
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let link = Tag::Link(
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LinkType::Inline,
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format!("{}@/{}/", base_url, &mention).into(),
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short_mention.to_owned().into(),
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);
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@ -294,6 +304,7 @@ pub fn md_to_html<'a>(
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}
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let hashtag = text_acc;
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let link = Tag::Link(
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LinkType::Inline,
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format!("{}tag/{}", base_url, &hashtag).into(),
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hashtag.to_owned().into(),
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);
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Trinity Pointard
3 years ago