crates/apub/src/protocol/objects/group.rs

   1 use crate::{
   2   check_apub_id_valid_with_strictness,
   3   collections::{
   4     community_moderators::ApubCommunityModerators,
   5     community_outbox::ApubCommunityOutbox,
   6   },
   7   fetch_local_site_data,
   8   objects::{community::ApubCommunity, read_from_string_or_source_opt},
   9   protocol::{
  10     objects::{Endpoints, LanguageTag},
  11     ImageObject,
  12     Source,
  13   },
  14 };
  15 use activitypub_federation::{
  16   core::{object_id::ObjectId, signatures::PublicKey},
  17   deser::helpers::deserialize_skip_error,
  18   utils::verify_domains_match,
  19 };
  20 use activitystreams_kinds::actor::GroupType;
  21 use chrono::{DateTime, FixedOffset};
  22 use lemmy_api_common::{context::LemmyContext, utils::local_site_opt_to_slur_regex};
  23 use lemmy_db_schema::{
  24   newtypes::InstanceId,
  25   source::community::{CommunityInsertForm, CommunityUpdateForm},
  26   utils::naive_now,
  27 };
  28 use lemmy_utils::{
  29   error::LemmyError,
  30   utils::{check_slurs, check_slurs_opt},
  31 };
  32 use serde::{Deserialize, Serialize};
  33 use serde_with::skip_serializing_none;
  34 use url::Url;
  35
  36 #[skip_serializing_none]
  37 #[derive(Clone, Debug, Deserialize, Serialize)]
  38 #[serde(rename_all = "camelCase")]
  39 pub struct Group {
  40   #[serde(rename = "type")]
  41   pub(crate) kind: GroupType,
  42   pub(crate) id: ObjectId<ApubCommunity>,
  43   /// username, set at account creation and usually fixed after that
  44   pub(crate) preferred_username: String,
  45   pub(crate) inbox: Url,
  46   pub(crate) followers: Url,
  47   pub(crate) public_key: PublicKey,
  48
  49   /// title
  50   pub(crate) name: Option<String>,
  51   pub(crate) summary: Option<String>,
  52   #[serde(deserialize_with = "deserialize_skip_error", default)]
  53   pub(crate) source: Option<Source>,
  54   pub(crate) icon: Option<ImageObject>,
  55   /// banner
  56   pub(crate) image: Option<ImageObject>,
  57   // lemmy extension
  58   pub(crate) sensitive: Option<bool>,
  59   // deprecated, use attributed_to instead
  60   pub(crate) moderators: Option<ObjectId<ApubCommunityModerators>>,
  61   #[serde(deserialize_with = "deserialize_skip_error", default)]
  62   pub(crate) attributed_to: Option<ObjectId<ApubCommunityModerators>>,
  63   // lemmy extension
  64   pub(crate) posting_restricted_to_mods: Option<bool>,
  65   pub(crate) outbox: ObjectId<ApubCommunityOutbox>,
  66   pub(crate) endpoints: Option<Endpoints>,
  67   #[serde(default)]
  68   pub(crate) language: Vec<LanguageTag>,
  69   pub(crate) published: Option<DateTime<FixedOffset>>,
  70   pub(crate) updated: Option<DateTime<FixedOffset>>,
  71 }
  72
  73 impl Group {
  74   pub(crate) async fn verify(
  75     &self,
  76     expected_domain: &Url,
  77     context: &LemmyContext,
  78   ) -> Result<(), LemmyError> {
  79     let local_site_data = fetch_local_site_data(context.pool()).await?;
  80
  81     check_apub_id_valid_with_strictness(
  82       self.id.inner(),
  83       true,
  84       &local_site_data,
  85       context.settings(),
  86     )?;
  87     verify_domains_match(expected_domain, self.id.inner())?;
  88
  89     let slur_regex = &local_site_opt_to_slur_regex(&local_site_data.local_site);
  90
  91     check_slurs(&self.preferred_username, slur_regex)?;
  92     check_slurs_opt(&self.name, slur_regex)?;
  93     let description = read_from_string_or_source_opt(&self.summary, &None, &self.source);
  94     check_slurs_opt(&description, slur_regex)?;
  95     Ok(())
  96   }
  97
  98   pub(crate) fn into_insert_form(self, instance_id: InstanceId) -> CommunityInsertForm {
  99     CommunityInsertForm {
 100       name: self.preferred_username.clone(),
 101       title: self.name.unwrap_or(self.preferred_username),
 102       description: read_from_string_or_source_opt(&self.summary, &None, &self.source),
 103       removed: None,
 104       published: self.published.map(|u| u.naive_local()),
 105       updated: self.updated.map(|u| u.naive_local()),
 106       deleted: Some(false),
 107       nsfw: Some(self.sensitive.unwrap_or(false)),
 108       actor_id: Some(self.id.into()),
 109       local: Some(false),
 110       private_key: None,
 111       hidden: Some(false),
 112       public_key: self.public_key.public_key_pem,
 113       last_refreshed_at: Some(naive_now()),
 114       icon: self.icon.map(|i| i.url.into()),
 115       banner: self.image.map(|i| i.url.into()),
 116       followers_url: Some(self.followers.into()),
 117       inbox_url: Some(self.inbox.into()),
 118       shared_inbox_url: self.endpoints.map(|e| e.shared_inbox.into()),
 119       posting_restricted_to_mods: self.posting_restricted_to_mods,
 120       instance_id,
 121     }
 122   }
 123
 124   pub(crate) fn into_update_form(self) -> CommunityUpdateForm {
 125     CommunityUpdateForm {
 126       title: Some(self.name.unwrap_or(self.preferred_username)),
 127       description: Some(read_from_string_or_source_opt(
 128         &self.summary,
 129         &None,
 130         &self.source,
 131       )),
 132       removed: None,
 133       published: self.published.map(|u| u.naive_local()),
 134       updated: Some(self.updated.map(|u| u.naive_local())),
 135       deleted: None,
 136       nsfw: Some(self.sensitive.unwrap_or(false)),
 137       actor_id: Some(self.id.into()),
 138       local: Some(false),
 139       private_key: None,
 140       hidden: Some(false),
 141       public_key: Some(self.public_key.public_key_pem),
 142       last_refreshed_at: Some(naive_now()),
 143       icon: Some(self.icon.map(|i| i.url.into())),
 144       banner: Some(self.image.map(|i| i.url.into())),
 145       followers_url: Some(self.followers.into()),
 146       inbox_url: Some(self.inbox.into()),
 147       shared_inbox_url: Some(self.endpoints.map(|e| e.shared_inbox.into())),
 148       posting_restricted_to_mods: self.posting_restricted_to_mods,
 149     }
 150   }
 151 }