diff options
| -rw-r--r-- | src/bin/kittybox-check-webmention.rs | 115 | ||||
| -rw-r--r-- | src/webmentions/mod.rs | 2 |
2 files changed, 8 insertions, 109 deletions
diff --git a/src/bin/kittybox-check-webmention.rs b/src/bin/kittybox-check-webmention.rs index 820e7c4..b43980e 100644 --- a/src/bin/kittybox-check-webmention.rs +++ b/src/bin/kittybox-check-webmention.rs @@ -1,114 +1,13 @@ -use std::cell::{RefCell, Ref}; -use std::rc::Rc; - use clap::Parser; -use microformats::types::PropertyValue; -use microformats::html5ever; -use microformats::html5ever::tendril::TendrilSink; -#[derive(thiserror::Error, Debug)] +use kittybox::webmentions::check::{check_mention, Error as WebmentionError}; + +#[derive(Debug, thiserror::Error)] enum Error { - #[error("http request error: {0}")] + #[error("reqwest error: {0}")] Http(#[from] reqwest::Error), - #[error("microformats error: {0}")] - Microformats(#[from] microformats::Error), - #[error("json error: {0}")] - Json(#[from] serde_json::Error), - #[error("url parse error: {0}")] - UrlParse(#[from] url::ParseError), -} - -use kittybox_util::MentionType; - -fn check_mention(document: impl AsRef<str>, base_url: &url::Url, link: &url::Url) -> Result<Option<MentionType>, Error> { - // First, check the document for MF2 markup - let document = microformats::from_html(document.as_ref(), base_url.clone())?; - - // Get an iterator of all items - let items_iter = document.items.iter() - .map(AsRef::as_ref) - .map(RefCell::borrow); - - for item in items_iter { - let props = item.properties.borrow(); - for (prop, interaction_type) in [ - ("in-reply-to", MentionType::Reply), ("like-of", MentionType::Like), - ("bookmark-of", MentionType::Bookmark), ("repost-of", MentionType::Repost) - ] { - if let Some(propvals) = props.get(prop) { - for val in propvals { - if let PropertyValue::Url(url) = val { - if url == link { - return Ok(Some(interaction_type)) - } - } - } - } - } - // Process `content` - if let Some(PropertyValue::Fragment(content)) = props.get("content") - .map(Vec::as_slice) - .unwrap_or_default() - .first() - { - let root = html5ever::parse_document(html5ever::rcdom::RcDom::default(), Default::default()) - .from_utf8() - .one(content.html.to_owned().as_bytes()) - .document; - - // This is a trick to unwrap recursion into a loop - // - // A list of unprocessed node is made. Then, in each - // iteration, the list is "taken" and replaced with an - // empty list, which is populated with nodes for the next - // iteration of the loop. - // - // Empty list means all nodes were processed. - let mut unprocessed_nodes: Vec<Rc<html5ever::rcdom::Node>> = root.children.borrow().iter().cloned().collect(); - while unprocessed_nodes.len() > 0 { - // "Take" the list out of its memory slot, replace it with an empty list - let nodes = std::mem::take(&mut unprocessed_nodes); - 'nodes_loop: for node in nodes.into_iter() { - // Add children nodes to the list for the next iteration - unprocessed_nodes.extend(node.children.borrow().iter().cloned()); - - if let html5ever::rcdom::NodeData::Element { ref name, ref attrs, .. } = node.data { - // If it's not `<a>`, skip it - if name.local != *"a" { continue; } - let mut is_mention: bool = false; - for attr in attrs.borrow().iter() { - if attr.name.local == *"rel" { - // Don't count `rel="nofollow"` links — a web crawler should ignore them - // and so for purposes of driving visitors they are useless - if attr.value - .as_ref() - .split([',', ' ']) - .any(|v| v == "nofollow") - { - // Skip the entire node. - continue 'nodes_loop; - } - } - // if it's not `<a href="...">`, skip it - if attr.name.local != *"href" { continue; } - // Be forgiving in parsing URLs, and resolve them against the base URL - if let Ok(url) = base_url.join(attr.value.as_ref()) { - if &url == link { - is_mention = true; - } - } - } - if is_mention { - return Ok(Some(MentionType::Mention)); - } - } - } - } - - } - } - - Ok(None) + #[error("webmention check error: {0}")] + Webmention(#[from] WebmentionError) } #[derive(Parser, Debug)] @@ -126,7 +25,7 @@ struct Args { } #[tokio::main] -async fn main() -> Result<(), self::Error> { +async fn main() -> Result<(), Error> { let args = Args::parse(); let http: reqwest::Client = { diff --git a/src/webmentions/mod.rs b/src/webmentions/mod.rs index 22701b4..91b274b 100644 --- a/src/webmentions/mod.rs +++ b/src/webmentions/mod.rs @@ -92,7 +92,7 @@ where .unwrap(); } -mod check; +pub mod check; #[derive(thiserror::Error, Debug)] enum Error<Q: std::error::Error + std::fmt::Debug + Send + 'static> { |