Implement webfinger (fixes #149)

This commit is contained in:
Felix Ableitner 2019-12-18 01:59:47 +01:00
parent 1f7546789a
commit 3d9f7d28d6
7 changed files with 94 additions and 13 deletions

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@ -68,6 +68,10 @@ impl Community {
.filter(name.eq(community_name))
.first::<Self>(conn)
}
pub fn get_community_url(community_name: &str) -> String {
format!("https://{}/c/{}", Settings::get().hostname, community_name)
}
}
#[derive(Identifiable, Queryable, Associations, PartialEq, Debug)]

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@ -132,23 +132,27 @@ impl User_ {
.unwrap()
}
pub fn find_by_username(conn: &PgConnection, username: &str) -> Result<Self, Error> {
user_.filter(name.eq(username)).first::<User_>(conn)
}
pub fn find_by_email(conn: &PgConnection, from_email: &str) -> Result<Self, Error> {
user_.filter(email.eq(from_email)).first::<User_>(conn)
}
pub fn find_by_email_or_username(
conn: &PgConnection,
username_or_email: &str,
) -> Result<Self, Error> {
if is_email_regex(username_or_email) {
user_
.filter(email.eq(username_or_email))
.first::<User_>(conn)
User_::find_by_email(conn, username_or_email)
} else {
user_
.filter(name.eq(username_or_email))
.first::<User_>(conn)
User_::find_by_username(conn, username_or_email)
}
}
pub fn find_by_email(conn: &PgConnection, from_email: &str) -> Result<Self, Error> {
user_.filter(email.eq(from_email)).first::<User_>(conn)
pub fn get_user_profile_url(username: &str) -> String {
format!("https://{}/u/{}", Settings::get().hostname, username)
}
pub fn find_by_jwt(conn: &PgConnection, jwt: &str) -> Result<Self, Error> {

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@ -110,8 +110,8 @@ fn get_feed_user(sort_type: &SortType, user_name: String) -> Result<String, Erro
let conn = establish_connection();
let site_view = SiteView::read(&conn)?;
let user = User_::find_by_email_or_username(&conn, &user_name)?;
let user_url = format!("https://{}/u/{}", Settings::get().hostname, user.name);
let user = User_::find_by_username(&conn, &user_name)?;
let user_url = User_::get_user_profile_url(&user_name);
let posts = PostQueryBuilder::create(&conn)
.listing_type(ListingType::All)
@ -135,7 +135,7 @@ fn get_feed_community(sort_type: &SortType, community_name: String) -> Result<St
let site_view = SiteView::read(&conn)?;
let community = Community::read_from_name(&conn, community_name)?;
let community_url = format!("https://{}/c/{}", Settings::get().hostname, community.name);
let community_url = Community::get_community_url(&community.name);
let posts = PostQueryBuilder::create(&conn)
.listing_type(ListingType::All)

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@ -30,6 +30,7 @@ pub mod nodeinfo;
pub mod schema;
pub mod settings;
pub mod version;
pub mod webfinger;
pub mod websocket;
use crate::settings::Settings;

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@ -11,6 +11,7 @@ use lemmy_server::db::establish_connection;
use lemmy_server::feeds;
use lemmy_server::nodeinfo;
use lemmy_server::settings::Settings;
use lemmy_server::webfinger;
use lemmy_server::websocket::server::*;
use std::env;
use std::time::{Duration, Instant};
@ -255,7 +256,10 @@ fn main() {
)
.route(
"/federation/u/{user_name}",
web::get().to(apub::user::get_apub_user),
web::get().to(apub::user::get_apub_user))
.route(
".well-known/webfinger",
web::get().to(webfinger::get_webfinger_response),
)
})
.bind((settings.bind, settings.port))

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@ -56,7 +56,6 @@ lazy_static! {
}
impl Settings {
/// Reads config from the files and environment.
/// First, defaults are loaded from CONFIG_FILE_DEFAULTS, then these values can be overwritten
/// from CONFIG_FILE (optional). Finally, values from the environment (with prefix LEMMY) are

69
server/src/webfinger.rs Normal file
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@ -0,0 +1,69 @@
use crate::db::community::Community;
use crate::db::establish_connection;
use crate::Settings;
use actix_web::body::Body;
use actix_web::web::Query;
use actix_web::HttpResponse;
use serde::Deserialize;
use serde_json::json;
#[derive(Deserialize)]
pub struct Params {
resource: String,
}
/// Responds to webfinger requests of the following format. There isn't any real documentation for
/// this, but it described in this blog post:
/// https://mastodon.social/.well-known/webfinger?resource=acct:gargron@mastodon.social
///
/// You can also view the webfinger response that Mastodon sends:
/// https://radical.town/.well-known/webfinger?resource=acct:felix@radical.town
pub fn get_webfinger_response(info: Query<Params>) -> HttpResponse<Body> {
// NOTE: Calling the parameter "account" maybe doesn't really make sense, but should give us the
// best compatibility with existing implementations. We could also support an alternative name
// like "group", and encourage others to use that.
let community_identifier = info.resource.replace("acct:", "");
let split_identifier: Vec<&str> = community_identifier.split("@").collect();
let community_name = split_identifier[0];
// It looks like Mastodon does not return webfinger requests for users from other instances, so we
// don't do that either.
if split_identifier.len() != 2 || split_identifier[1] != Settings::get().hostname {
return HttpResponse::NotFound().finish();
}
// Make sure the requested community exists.
let conn = establish_connection();
match Community::read_from_name(&conn, community_name.to_owned()) {
Err(_) => return HttpResponse::NotFound().finish(),
Ok(c) => c,
};
let community_url = Community::get_community_url(&community_name);
let json = json!({
"subject": info.resource,
"aliases": [
community_url,
],
"links": [
{
"rel": "http://webfinger.net/rel/profile-page",
"type": "text/html",
"href": community_url
},
{
"rel": "self",
"type": "application/activity+json",
"href": community_url // Yes this is correct, this link doesn't include the `.json` extension
}
// TODO: this also needs to return the subscribe link once that's implemented
//{
// "rel": "http://ostatus.org/schema/1.0/subscribe",
// "template": "https://my_instance.com/authorize_interaction?uri={uri}"
//}
]
});
return HttpResponse::Ok()
.content_type("application/activity+json")
.body(json.to_string());
}