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

   1 use crate::{
   2   check_is_apub_id_valid,
   3   collections::{
   4     community_moderators::ApubCommunityModerators,
   5     community_outbox::ApubCommunityOutbox,
   6   },
   7   objects::{
   8     community::ApubCommunity,
   9     read_from_string_or_source_opt,
  10     verify_image_domain_matches,
  11   },
  12   protocol::{objects::Endpoints, ImageObject, Source},
  13 };
  14 use activitystreams_kinds::actor::GroupType;
  15 use chrono::{DateTime, FixedOffset};
  16 use lemmy_apub_lib::{object_id::ObjectId, signatures::PublicKey, verify::verify_domains_match};
  17 use lemmy_db_schema::{source::community::CommunityForm, utils::naive_now};
  18 use lemmy_utils::{
  19   utils::{check_slurs, check_slurs_opt},
  20   LemmyError,
  21 };
  22 use lemmy_websocket::LemmyContext;
  23 use serde::{Deserialize, Serialize};
  24 use serde_with::skip_serializing_none;
  25 use url::Url;
  26
  27 #[skip_serializing_none]
  28 #[derive(Clone, Debug, Deserialize, Serialize)]
  29 #[serde(rename_all = "camelCase")]
  30 pub struct Group {
  31   #[serde(rename = "type")]
  32   pub(crate) kind: GroupType,
  33   pub(crate) id: ObjectId<ApubCommunity>,
  34   /// username, set at account creation and usually fixed after that
  35   pub(crate) preferred_username: String,
  36   pub(crate) inbox: Url,
  37   pub(crate) followers: Url,
  38   pub(crate) public_key: PublicKey,
  39
  40   /// title
  41   pub(crate) name: Option<String>,
  42   pub(crate) summary: Option<String>,
  43   #[serde(deserialize_with = "crate::deserialize_skip_error", default)]
  44   pub(crate) source: Option<Source>,
  45   pub(crate) icon: Option<ImageObject>,
  46   /// banner
  47   pub(crate) image: Option<ImageObject>,
  48   // lemmy extension
  49   pub(crate) sensitive: Option<bool>,
  50   // lemmy extension
  51   pub(crate) moderators: Option<ObjectId<ApubCommunityModerators>>,
  52   // lemmy extension
  53   pub(crate) posting_restricted_to_mods: Option<bool>,
  54   pub(crate) outbox: ObjectId<ApubCommunityOutbox>,
  55   pub(crate) endpoints: Option<Endpoints>,
  56   pub(crate) published: Option<DateTime<FixedOffset>>,
  57   pub(crate) updated: Option<DateTime<FixedOffset>>,
  58 }
  59
  60 impl Group {
  61   pub(crate) async fn verify(
  62     &self,
  63     expected_domain: &Url,
  64     context: &LemmyContext,
  65   ) -> Result<(), LemmyError> {
  66     check_is_apub_id_valid(self.id.inner(), true, &context.settings())?;
  67     verify_domains_match(expected_domain, self.id.inner())?;
  68     verify_image_domain_matches(expected_domain, &self.icon)?;
  69     verify_image_domain_matches(expected_domain, &self.image)?;
  70
  71     let slur_regex = &context.settings().slur_regex();
  72     check_slurs(&self.preferred_username, slur_regex)?;
  73     check_slurs_opt(&self.name, slur_regex)?;
  74     let description = read_from_string_or_source_opt(&self.summary, &None, &self.source);
  75     check_slurs_opt(&description, slur_regex)?;
  76     Ok(())
  77   }
  78
  79   pub(crate) fn into_form(self) -> CommunityForm {
  80     CommunityForm {
  81       name: self.preferred_username.clone(),
  82       title: self.name.unwrap_or(self.preferred_username),
  83       description: read_from_string_or_source_opt(&self.summary, &None, &self.source),
  84       removed: None,
  85       published: self.published.map(|u| u.naive_local()),
  86       updated: self.updated.map(|u| u.naive_local()),
  87       deleted: None,
  88       nsfw: Some(self.sensitive.unwrap_or(false)),
  89       actor_id: Some(self.id.into()),
  90       local: Some(false),
  91       private_key: None,
  92       hidden: Some(false),
  93       public_key: self.public_key.public_key_pem,
  94       last_refreshed_at: Some(naive_now()),
  95       icon: Some(self.icon.map(|i| i.url.into())),
  96       banner: Some(self.image.map(|i| i.url.into())),
  97       followers_url: Some(self.followers.into()),
  98       inbox_url: Some(self.inbox.into()),
  99       shared_inbox_url: Some(self.endpoints.map(|e| e.shared_inbox.into())),
 100       posting_restricted_to_mods: self.posting_restricted_to_mods,
 101     }
 102   }
 103 }