141 lines
4.2 KiB
Rust
141 lines
4.2 KiB
Rust
use actix_web::{get, web, HttpResponse};
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use mitra_config::{Config, Instance};
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use mitra_models::{
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database::{get_database_client, DatabaseClient, DbPool},
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users::queries::is_registered_user,
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};
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use crate::activitypub::{
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constants::AP_MEDIA_TYPE,
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identifiers::{
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local_actor_id,
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local_instance_actor_id,
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parse_local_actor_id,
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},
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};
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use crate::errors::{HttpError, ValidationError};
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use super::types::{
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ActorAddress,
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Link,
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JsonResourceDescriptor,
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WebfingerQueryParams,
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JRD_CONTENT_TYPE,
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};
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// https://datatracker.ietf.org/doc/html/rfc7565#section-7
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fn parse_acct_uri(uri: &str) -> Result<ActorAddress, ValidationError> {
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let actor_address = uri.strip_prefix("acct:")
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.ok_or(ValidationError("invalid query target"))?
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.parse()?;
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Ok(actor_address)
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}
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async fn get_jrd(
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db_client: &impl DatabaseClient,
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instance: Instance,
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resource: &str,
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) -> Result<JsonResourceDescriptor, HttpError> {
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let actor_address = if resource.starts_with("acct:") {
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parse_acct_uri(resource)?
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} else {
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// Actor ID? (reverse webfinger)
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let username = if resource == local_instance_actor_id(&instance.url()) {
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instance.hostname()
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} else {
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parse_local_actor_id(&instance.url(), resource)?
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};
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ActorAddress { username, hostname: instance.hostname() }
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};
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if actor_address.hostname != instance.hostname() {
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// Wrong instance
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return Err(HttpError::NotFoundError("user"));
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};
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let actor_id = if actor_address.username == instance.hostname() {
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local_instance_actor_id(&instance.url())
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} else {
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if !is_registered_user(db_client, &actor_address.username).await? {
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return Err(HttpError::NotFoundError("user"));
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};
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local_actor_id(&instance.url(), &actor_address.username)
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};
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// Required by GNU Social
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let link_profile = Link {
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rel: "http://webfinger.net/rel/profile-page".to_string(),
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media_type: Some("text/html".to_string()),
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href: Some(actor_id.clone()),
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properties: Default::default(),
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};
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let link_actor = Link {
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rel: "self".to_string(),
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media_type: Some(AP_MEDIA_TYPE.to_string()),
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href: Some(actor_id),
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properties: Default::default(),
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};
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let jrd = JsonResourceDescriptor {
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subject: format!("acct:{}", actor_address),
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links: vec![link_profile, link_actor],
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};
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Ok(jrd)
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}
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#[get("/.well-known/webfinger")]
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pub async fn webfinger_view(
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config: web::Data<Config>,
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db_pool: web::Data<DbPool>,
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query_params: web::Query<WebfingerQueryParams>,
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) -> Result<HttpResponse, HttpError> {
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let db_client = &**get_database_client(&db_pool).await?;
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let jrd = get_jrd(
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db_client,
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config.instance(),
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&query_params.resource,
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).await?;
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let response = HttpResponse::Ok()
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.content_type(JRD_CONTENT_TYPE)
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.json(jrd);
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Ok(response)
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}
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#[cfg(test)]
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mod tests {
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use serial_test::serial;
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use mitra_models::{
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database::test_utils::create_test_database,
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users::{
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queries::create_user,
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types::UserCreateData,
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},
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};
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use super::*;
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#[test]
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fn test_parse_acct_uri() {
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let uri = "acct:user_1@example.com";
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let actor_address = parse_acct_uri(uri).unwrap();
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assert_eq!(actor_address.username, "user_1");
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assert_eq!(actor_address.hostname, "example.com");
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}
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#[tokio::test]
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#[serial]
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async fn test_get_jrd() {
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let db_client = &mut create_test_database().await;
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let instance = Instance::for_test("https://example.com");
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let user_data = UserCreateData {
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username: "test".to_string(),
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password_hash: Some("test".to_string()),
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..Default::default()
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};
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create_user(db_client, user_data).await.unwrap();
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let resource = "acct:test@example.com";
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let jrd = get_jrd(db_client, instance, resource).await.unwrap();
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assert_eq!(jrd.subject, resource);
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assert_eq!(
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jrd.links[0].href.as_ref().unwrap(),
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"https://example.com/users/test",
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);
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}
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}
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