server/src/apub/community.rs

   1 use crate::apub::fetcher::{fetch_remote_object, fetch_remote_user};
   2 use crate::apub::signatures::PublicKey;
   3 use crate::apub::*;
   4 use crate::db::community::{Community, CommunityForm};
   5 use crate::db::community_view::CommunityFollowerView;
   6 use crate::db::establish_unpooled_connection;
   7 use crate::db::post::Post;
   8 use crate::db::user::User_;
   9 use crate::db::Crud;
  10 use crate::settings::Settings;
  11 use crate::{convert_datetime, naive_now};
  12 use activitystreams::actor::properties::ApActorProperties;
  13 use activitystreams::collection::OrderedCollection;
  14 use activitystreams::{
  15   actor::Group, collection::UnorderedCollection, context, ext::Extensible,
  16   object::properties::ObjectProperties,
  17 };
  18 use actix_web::body::Body;
  19 use actix_web::web::Path;
  20 use actix_web::HttpResponse;
  21 use actix_web::{web, Result};
  22 use diesel::r2d2::{ConnectionManager, Pool};
  23 use diesel::PgConnection;
  24 use failure::Error;
  25 use serde::Deserialize;
  26 use url::Url;
  27
  28 #[derive(Deserialize)]
  29 pub struct CommunityQuery {
  30   community_name: String,
  31 }
  32
  33 pub async fn get_apub_community_list(
  34   db: web::Data<Pool<ConnectionManager<PgConnection>>>,
  35 ) -> Result<HttpResponse<Body>, Error> {
  36   // TODO: implement pagination
  37   let communities = Community::list_local(&db.get().unwrap())?
  38     .iter()
  39     .map(|c| c.as_group(&db.get().unwrap()))
  40     .collect::<Result<Vec<GroupExt>, Error>>()?;
  41   let mut collection = UnorderedCollection::default();
  42   let oprops: &mut ObjectProperties = collection.as_mut();
  43   oprops.set_context_xsd_any_uri(context())?.set_id(format!(
  44     "{}://{}/federation/communities",
  45     get_apub_protocol_string(),
  46     Settings::get().hostname
  47   ))?;
  48
  49   collection
  50     .collection_props
  51     .set_total_items(communities.len() as u64)?
  52     .set_many_items_base_boxes(communities)?;
  53   Ok(create_apub_response(&collection))
  54 }
  55
  56 impl Community {
  57   fn as_group(&self, conn: &PgConnection) -> Result<GroupExt, Error> {
  58     let mut group = Group::default();
  59     let oprops: &mut ObjectProperties = group.as_mut();
  60
  61     let creator = User_::read(conn, self.creator_id)?;
  62     oprops
  63       .set_context_xsd_any_uri(context())?
  64       .set_id(self.actor_id.to_owned())?
  65       .set_name_xsd_string(self.name.to_owned())?
  66       .set_published(convert_datetime(self.published))?
  67       .set_attributed_to_xsd_any_uri(creator.actor_id)?;
  68
  69     if let Some(u) = self.updated.to_owned() {
  70       oprops.set_updated(convert_datetime(u))?;
  71     }
  72     if let Some(d) = self.description.to_owned() {
  73       // TODO: this should be html, also add source field with raw markdown
  74       //       -> same for post.content and others
  75       oprops.set_summary_xsd_string(d)?;
  76     }
  77
  78     let mut actor_props = ApActorProperties::default();
  79
  80     actor_props
  81       .set_preferred_username(self.title.to_owned())?
  82       .set_inbox(self.get_inbox_url())?
  83       .set_outbox(self.get_outbox_url())?
  84       .set_followers(self.get_followers_url())?;
  85
  86     let public_key = PublicKey {
  87       id: format!("{}#main-key", self.actor_id),
  88       owner: self.actor_id.to_owned(),
  89       public_key_pem: self.public_key.to_owned().unwrap(),
  90     };
  91
  92     Ok(group.extend(actor_props).extend(public_key.to_ext()))
  93   }
  94
  95   pub fn get_followers_url(&self) -> String {
  96     format!("{}/followers", &self.actor_id)
  97   }
  98   pub fn get_inbox_url(&self) -> String {
  99     format!("{}/inbox", &self.actor_id)
 100   }
 101   pub fn get_outbox_url(&self) -> String {
 102     format!("{}/outbox", &self.actor_id)
 103   }
 104 }
 105
 106 impl CommunityForm {
 107   pub fn from_group(group: &GroupExt, conn: &PgConnection) -> Result<Self, Error> {
 108     let oprops = &group.base.base.object_props;
 109     let aprops = &group.base.extension;
 110     let public_key: &PublicKey = &group.extension.public_key;
 111
 112     let followers_uri = Url::parse(&aprops.get_followers().unwrap().to_string())?;
 113     let outbox_uri = Url::parse(&aprops.get_outbox().to_string())?;
 114     let _outbox = fetch_remote_object::<OrderedCollection>(&outbox_uri)?;
 115     let _followers = fetch_remote_object::<UnorderedCollection>(&followers_uri)?;
 116     let apub_id = Url::parse(&oprops.get_attributed_to_xsd_any_uri().unwrap().to_string())?;
 117     let creator = fetch_remote_user(&apub_id, conn)?;
 118
 119     Ok(CommunityForm {
 120       name: oprops.get_name_xsd_string().unwrap().to_string(),
 121       title: aprops.get_preferred_username().unwrap().to_string(),
 122       // TODO: should be parsed as html and tags like <script> removed (or use markdown source)
 123       //       -> same for post.content etc
 124       description: oprops.get_content_xsd_string().map(|s| s.to_string()),
 125       category_id: 1, // -> peertube uses `"category": {"identifier": "9","name": "Comedy"},`
 126       creator_id: creator.id,
 127       removed: None,
 128       published: oprops
 129         .get_published()
 130         .map(|u| u.as_ref().to_owned().naive_local()),
 131       updated: oprops
 132         .get_updated()
 133         .map(|u| u.as_ref().to_owned().naive_local()),
 134       deleted: None,
 135       nsfw: false,
 136       actor_id: oprops.get_id().unwrap().to_string(),
 137       local: false,
 138       private_key: None,
 139       public_key: Some(public_key.to_owned().public_key_pem),
 140       last_refreshed_at: Some(naive_now()),
 141     })
 142   }
 143 }
 144
 145 pub async fn get_apub_community_http(
 146   info: Path<CommunityQuery>,
 147   db: web::Data<Pool<ConnectionManager<PgConnection>>>,
 148 ) -> Result<HttpResponse<Body>, Error> {
 149   let community = Community::read_from_name(&&db.get()?, info.community_name.to_owned())?;
 150   let c = community.as_group(&db.get().unwrap())?;
 151   Ok(create_apub_response(&c))
 152 }
 153
 154 pub async fn get_apub_community_followers(
 155   info: Path<CommunityQuery>,
 156   db: web::Data<Pool<ConnectionManager<PgConnection>>>,
 157 ) -> Result<HttpResponse<Body>, Error> {
 158   let community = Community::read_from_name(&&db.get()?, info.community_name.to_owned())?;
 159
 160   let connection = establish_unpooled_connection();
 161   //As we are an object, we validated that the community id was valid
 162   let community_followers =
 163     CommunityFollowerView::for_community(&connection, community.id).unwrap();
 164
 165   let mut collection = UnorderedCollection::default();
 166   let oprops: &mut ObjectProperties = collection.as_mut();
 167   oprops
 168     .set_context_xsd_any_uri(context())?
 169     .set_id(community.actor_id)?;
 170   collection
 171     .collection_props
 172     .set_total_items(community_followers.len() as u64)?;
 173   Ok(create_apub_response(&collection))
 174 }
 175
 176 pub async fn get_apub_community_outbox(
 177   info: Path<CommunityQuery>,
 178   db: web::Data<Pool<ConnectionManager<PgConnection>>>,
 179 ) -> Result<HttpResponse<Body>, Error> {
 180   let community = Community::read_from_name(&&db.get()?, info.community_name.to_owned())?;
 181
 182   let conn = establish_unpooled_connection();
 183   //As we are an object, we validated that the community id was valid
 184   let community_posts: Vec<Post> = Post::list_for_community(&conn, community.id)?;
 185
 186   let mut collection = OrderedCollection::default();
 187   let oprops: &mut ObjectProperties = collection.as_mut();
 188   oprops
 189     .set_context_xsd_any_uri(context())?
 190     .set_id(community.actor_id)?;
 191   collection
 192     .collection_props
 193     .set_many_items_base_boxes(
 194       community_posts
 195         .iter()
 196         .map(|c| c.as_page(&conn).unwrap())
 197         .collect(),
 198     )?
 199     .set_total_items(community_posts.len() as u64)?;
 200
 201   Ok(create_apub_response(&collection))
 202 }