82 lines
2.3 KiB
Rust
82 lines
2.3 KiB
Rust
extern crate elasticlunr;
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#[macro_use]
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extern crate lazy_static;
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extern crate ammonia;
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#[macro_use]
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extern crate errors;
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extern crate library;
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use std::collections::{HashMap, HashSet};
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use elasticlunr::{Index, Language};
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use library::{Library, Section};
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use errors::Result;
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pub const ELASTICLUNR_JS: &str = include_str!("elasticlunr.min.js");
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lazy_static! {
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static ref AMMONIA: ammonia::Builder<'static> = {
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let mut clean_content = HashSet::new();
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clean_content.insert("script");
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clean_content.insert("style");
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let mut builder = ammonia::Builder::new();
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builder
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.tags(HashSet::new())
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.tag_attributes(HashMap::new())
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.generic_attributes(HashSet::new())
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.link_rel(None)
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.allowed_classes(HashMap::new())
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.clean_content_tags(clean_content);
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builder
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};
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}
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/// Returns the generated JSON index with all the documents of the site added using
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/// the language given
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/// Errors if the language given is not available in Elasticlunr
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/// TODO: is making `in_search_index` apply to subsections of a `false` section useful?
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pub fn build_index(lang: &str, library: &Library) -> Result<String> {
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let language = match Language::from_code(lang) {
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Some(l) => l,
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None => { bail!("Tried to build search index for language {} which is not supported", lang); }
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};
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let mut index = Index::with_language(language, &["title", "body"]);
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for section in library.sections_values() {
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add_section_to_index(&mut index, section, library);
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}
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Ok(index.to_json())
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}
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fn add_section_to_index(index: &mut Index, section: &Section, library: &Library) {
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if !section.meta.in_search_index {
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return;
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}
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// Don't index redirecting sections
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if section.meta.redirect_to.is_none() {
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index.add_doc(
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§ion.permalink,
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&[§ion.meta.title.clone().unwrap_or_default(), &AMMONIA.clean(§ion.content).to_string()],
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);
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}
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for key in §ion.pages {
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let page = library.get_page_by_key(*key);
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if !page.meta.in_search_index || page.meta.draft {
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continue;
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}
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index.add_doc(
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&page.permalink,
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&[&page.meta.title.clone().unwrap_or_default(), &AMMONIA.clean(&page.content).to_string()],
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);
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}
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}
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