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use crate::apub::puller::fetch_remote_user;
use crate::apub::{create_apub_response, make_apub_endpoint, EndpointType};
use crate::convert_datetime;
use crate::db::post::{Post, PostForm};
use crate::db::user::User_;
use crate::db::Crud;
use activitystreams::{context, object::properties::ObjectProperties, object::Page};
use actix_web::body::Body;
use actix_web::web::Path;
use actix_web::{web, HttpResponse};
use diesel::r2d2::{ConnectionManager, Pool};
use diesel::PgConnection;
use failure::Error;
use serde::Deserialize;
#[derive(Deserialize)]
pub struct PostQuery {
post_id: String,
}
pub async fn get_apub_post(
info: Path<PostQuery>,
db: web::Data<Pool<ConnectionManager<PgConnection>>>,
) -> Result<HttpResponse<Body>, Error> {
let id = info.post_id.parse::<i32>()?;
let post = Post::read(&&db.get()?, id)?;
Ok(create_apub_response(&post.as_page(&db.get().unwrap())?))
}
impl Post {
pub fn as_page(&self, conn: &PgConnection) -> Result<Page, Error> {
let base_url = make_apub_endpoint(EndpointType::Post, &self.id.to_string());
let mut page = Page::default();
let oprops: &mut ObjectProperties = page.as_mut();
let creator = User_::read(conn, self.creator_id)?;
oprops
// Not needed when the Post is embedded in a collection (like for community outbox)
.set_context_xsd_any_uri(context())?
.set_id(base_url)?
.set_name_xsd_string(self.name.to_owned())?
.set_published(convert_datetime(self.published))?
.set_attributed_to_xsd_any_uri(make_apub_endpoint(EndpointType::User, &creator.name))?;
if let Some(body) = &self.body {
oprops.set_content_xsd_string(body.to_owned())?;
}
// TODO: hacky code because we get self.url == Some("")
// https://github.com/dessalines/lemmy/issues/602
let url = self.url.as_ref().filter(|u| !u.is_empty());
if let Some(u) = url {
oprops.set_url_xsd_any_uri(u.to_owned())?;
}
if let Some(u) = self.updated {
oprops.set_updated(convert_datetime(u))?;
}
Ok(page)
}
}
impl PostForm {
pub fn from_page(page: &Page, conn: &PgConnection) -> Result<PostForm, Error> {
let oprops = &page.object_props;
let creator = fetch_remote_user(
&oprops.get_attributed_to_xsd_any_uri().unwrap().to_string(),
conn,
)?;
Ok(PostForm {
name: oprops.get_name_xsd_string().unwrap().to_string(),
url: oprops.get_url_xsd_any_uri().map(|u| u.to_string()),
body: oprops.get_content_xsd_string().map(|c| c.to_string()),
creator_id: creator.id,
community_id: -1,
removed: None,
locked: None,
published: oprops
.get_published()
.map(|u| u.as_ref().to_owned().naive_local()),
updated: oprops
.get_updated()
.map(|u| u.as_ref().to_owned().naive_local()),
deleted: None,
nsfw: false,
stickied: None,
embed_title: None,
embed_description: None,
embed_html: None,
thumbnail_url: None,
ap_id: oprops.get_id().unwrap().to_string(),
local: false,
})
}
}
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