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main: consolidate actor uri parsing into Actor::from_uri()

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Astro 2023-10-31 04:12:03 +01:00
parent f9a103de9a
commit 316b34c689
2 changed files with 33 additions and 43 deletions
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49
src/actor.rs
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@ -27,26 +27,39 @@ pub struct Actor {
impl Actor {
pub fn from_uri(mut uri: &str) -> Option<Self> {
if ! uri.starts_with("https://") {
let kind;
let host;
if uri.starts_with("acct:tag-") {
let off = "acct:tag-".len();
let Some(at) = uri.find('@') else { return None; };
kind = ActorKind::TagRelay(uri[off..at].to_string());
host = Arc::new(uri[at + 1..].to_string());
} else if uri.starts_with("acct:instance-") {
let off = "acct:instance-".len();
let Some(at) = uri.find('@') else { return None; };
kind = ActorKind::InstanceRelay(uri[off..at].to_string());
host = Arc::new(uri[at + 1..].to_string());
} else if uri.starts_with("https://") {
uri = &uri[8..];
let parts = uri.split('/').collect::<Vec<_>>();
if parts.len() != 3 {
return None;
}
let Ok(topic) = urlencoding::decode(parts[2]) else { return None; };
kind = match parts[1] {
"tag" =>
ActorKind::TagRelay(topic.to_string()),
"instance" =>
ActorKind::InstanceRelay(topic.to_string()),
_ =>
return None,
};
host = Arc::new(parts[0].to_string());
} else {
return None;
}
uri = &uri[8..];
let parts = uri.split("/").collect::<Vec<_>>();
if parts.len() != 3 {
return None;
}
let Ok(topic) = urlencoding::decode(parts[2]) else { return None; };
let kind = match parts[1] {
"tag" =>
ActorKind::TagRelay(topic.to_string()),
"instance" =>
ActorKind::InstanceRelay(topic.to_string()),
_ =>
return None,
};
let host = Arc::new(parts[0].to_string());
Some(Actor { host, kind })
}

27
src/main.rs
View file

@ -9,7 +9,7 @@ use metrics::increment_counter;
use metrics_util::MetricKindMask;
use metrics_exporter_prometheus::PrometheusBuilder;
use serde_json::json;
use std::{net::SocketAddr, sync::Arc, time::Duration, collections::HashMap};
use std::{net::SocketAddr, time::Duration, collections::HashMap};
use std::{panic, process};
use tracing_subscriber::{layer::SubscriberExt, util::SubscriberInitExt};
use reqwest::Url;
@ -37,7 +37,6 @@ fn track_request(method: &'static str, controller: &'static str, result: &'stati
}
async fn webfinger(
axum::extract::State(state): axum::extract::State<State>,
Query(params): Query<HashMap<String, String>>,
) -> Response {
let resource = match params.get("resource") {
@ -47,29 +46,7 @@ async fn webfinger(
return StatusCode::NOT_FOUND.into_response();
},
};
let target = if resource.starts_with("acct:") {
let (target_kind, target_host) =
if resource.starts_with("acct:tag-") {
let off = "acct:tag-".len();
let at = resource.find('@');
(actor::ActorKind::TagRelay(resource[off..at.unwrap_or(resource.len())].to_string()),
at.map_or_else(|| state.hostname.clone(), |at| Arc::new(resource[at + 1..].to_string())))
} else if resource.starts_with("acct:instance-") {
let off = "acct:instance-".len();
let at = resource.find('@');
(actor::ActorKind::InstanceRelay(resource[off..at.unwrap_or(resource.len())].to_string()),
at.map_or_else(|| state.hostname.clone(), |at| Arc::new(resource[at + 1..].to_string())))
} else {
track_request("GET", "webfinger", "not_found");
return StatusCode::NOT_FOUND.into_response();
};
actor::Actor {
host: target_host,
kind: target_kind,
}
} else if let Some(target) = Actor::from_uri(resource) {
target
} else {
let Some(target) = Actor::from_uri(resource) else {
track_request("GET", "webfinger", "not_found");
return StatusCode::NOT_FOUND.into_response();
};