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fix(services/january): put html parsing into block to prevent issues with futures

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This commit is contained in:
Paul Makles
2024-10-02 14:09:41 +01:00
parent bb6bcda8bd
commit bb202079e0
1 changed files with 60 additions and 53 deletions
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113
crates/services/january/src/website_embed.rs
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@@ -9,34 +9,38 @@ use scraper::{Html, Selector};
/// Create website metadata from URL and document
pub async fn create_website_embed(original_url: &str, document: &str) -> Option<WebsiteMetadata> {
let document = Html::parse_document(document);
let (mut meta, mut link) = {
let document = Html::parse_document(document);
// create selectors
let meta_selector = Selector::parse("meta").ok()?;
let link_selector = Selector::parse("link").ok()?;
// create selectors
let meta_selector = Selector::parse("meta").ok()?;
let link_selector = Selector::parse("link").ok()?;
// extract meta tags
let mut meta = HashMap::new();
for el in document.select(&meta_selector) {
let node = el.value();
// extract meta tags
let mut meta = HashMap::new();
for el in document.select(&meta_selector) {
let node = el.value();
if let (Some(property), Some(content)) = (
node.attr("property").or_else(|| node.attr("name")),
node.attr("content"),
) {
meta.insert(property.to_string(), content.to_string());
if let (Some(property), Some(content)) = (
node.attr("property").or_else(|| node.attr("name")),
node.attr("content"),
) {
meta.insert(property.to_string(), content.to_string());
}
}
}
// extract rel links
let mut link = HashMap::new();
for el in document.select(&link_selector) {
let node = el.value();
// extract rel links
let mut link = HashMap::new();
for el in document.select(&link_selector) {
let node = el.value();
if let (Some(property), Some(content)) = (node.attr("rel"), node.attr("href")) {
link.insert(property.to_string(), content.to_string());
if let (Some(property), Some(content)) = (node.attr("rel"), node.attr("href")) {
link.insert(property.to_string(), content.to_string());
}
}
}
(meta, link)
};
// build metadata
let mut metadata = WebsiteMetadata {
@@ -137,32 +141,36 @@ pub async fn create_website_embed(original_url: &str, document: &str) -> Option<
};
// populate extra metadata for popular websites
populate_special(original_url.to_owned(), &mut metadata);
// TODO: these do not work because compiler is tripping:
populate_special(original_url.to_owned(), &mut metadata).await;
// fetch video size if missing
// if let Some(Video { width, height, url }) = &metadata.video {
// if width == &0 || height == &0 {
// metadata.video = match crate::requests::Request::fetch_video_metadata(url, None).await {
// Ok(Some(video)) => Some(video),
// _ => None,
// }
// }
// }
if metadata.special.is_none() {
if let Some(Video { width, height, url }) = &metadata.video {
if width == &0 || height == &0 {
metadata.video =
match crate::requests::Request::fetch_video_metadata(url, None).await {
Ok(Some(video)) => Some(video),
_ => None,
}
}
}
}
// fetch image size if missing
// if let Some(Image {
// width, height, url, ..
// }) = &metadata.image
// {
// if width == &0 || height == &0 {
// metadata.image = match crate::requests::Request::fetch_image_metadata(url, None).await {
// Ok(Some(image)) => Some(image),
// _ => None,
// }
// }
// }
if metadata.special.is_none() && metadata.image.is_none() {
if let Some(Image {
width, height, url, ..
}) = &metadata.image
{
if width == &0 || height == &0 {
metadata.image =
match crate::requests::Request::fetch_image_metadata(url, None).await {
Ok(Some(image)) => Some(image),
_ => None,
}
}
}
}
// truncate data
metadata.truncate();
@@ -175,7 +183,7 @@ pub async fn create_website_embed(original_url: &str, document: &str) -> Option<
}
}
pub fn populate_special(original_url: String, metadata: &mut WebsiteMetadata) {
pub async fn populate_special(original_url: String, metadata: &mut WebsiteMetadata) {
lazy_static! {
static ref RE_YOUTUBE: Regex = Regex::new("^(?:(?:https?:)?//)?(?:(?:www|m)\\.)?(?:(?:youtube\\.com|youtu.be))(?:/(?:[\\w\\-]+\\?v=|embed/|v/)?)([\\w\\-]+)(?:\\S+)?$").unwrap();
@@ -223,15 +231,14 @@ pub fn populate_special(original_url: String, metadata: &mut WebsiteMetadata) {
metadata.site_name.take();
// Verify the video exists
// TODO: breaks axum :(
// if !crate::requests::Request::exists(&format!(
// "http://img.youtube.com/vi/{}/sddefault.jpg",
// id
// ))
// .await
// {
// return;
// }
if !crate::requests::Request::exists(&format!(
"http://img.youtube.com/vi/{}/sddefault.jpg",
id
))
.await
{
return;
}
}
if let Some(timestamp_captures) = RE_TIMESTAMP.captures_iter(url).next() {