Plume/plume-models/src/users.rs

666 lines
26 KiB
Rust
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use activitypub::{
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Activity, Actor, Object, Endpoint, CustomObject,
actor::Person,
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collection::OrderedCollection,
object::Image,
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};
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use bcrypt;
use chrono::{Utc, NaiveDateTime};
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use diesel::{self, QueryDsl, RunQueryDsl, ExpressionMethods, BelongingToDsl};
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use openssl::{
hash::MessageDigest,
pkey::{PKey, Private},
rsa::Rsa,
sign
};
use plume_common::activity_pub::{
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ap_accept_header, ActivityStream, Id, IntoId, ApSignature, PublicKey,
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inbox::{Deletable, WithInbox},
sign::{Signer, gen_keypair}
};
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use reqwest::{
Client,
header::{ACCEPT, HeaderValue}
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};
use rocket::{
request::{self, FromRequest, Request},
outcome::IntoOutcome
};
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use serde_json;
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use url::Url;
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use webfinger::*;
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use {BASE_URL, USE_HTTPS, ap_url, Connection};
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use db_conn::DbConn;
use blogs::Blog;
use blog_authors::BlogAuthor;
use follows::Follow;
use instance::*;
use likes::Like;
use medias::Media;
use post_authors::PostAuthor;
use posts::Post;
use reshares::Reshare;
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use safe_string::SafeString;
use schema::users;
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pub const AUTH_COOKIE: &'static str = "user_id";
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pub type CustomPerson = CustomObject<ApSignature, Person>;
#[derive(Queryable, Identifiable, Serialize, Deserialize, Clone, Debug)]
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pub struct User {
pub id: i32,
pub username: String,
pub display_name: String,
pub outbox_url: String,
pub inbox_url: String,
pub is_admin: bool,
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pub summary: SafeString,
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pub email: Option<String>,
pub hashed_password: Option<String>,
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pub instance_id: i32,
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pub creation_date: NaiveDateTime,
pub ap_url: String,
pub private_key: Option<String>,
pub public_key: String,
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pub shared_inbox_url: Option<String>,
pub followers_endpoint: String,
pub avatar_id: Option<i32>,
pub last_fetched_date: NaiveDateTime
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}
#[derive(Insertable)]
#[table_name = "users"]
pub struct NewUser {
pub username: String,
pub display_name: String,
pub outbox_url: String,
pub inbox_url: String,
pub is_admin: bool,
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pub summary: SafeString,
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pub email: Option<String>,
pub hashed_password: Option<String>,
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pub instance_id: i32,
pub ap_url: String,
pub private_key: Option<String>,
pub public_key: String,
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pub shared_inbox_url: Option<String>,
pub followers_endpoint: String,
pub avatar_id: Option<i32>,
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}
const USER_PREFIX: &'static str = "@";
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impl User {
insert!(users, NewUser);
get!(users);
find_by!(users, find_by_email, email as String);
find_by!(users, find_by_name, username as String, instance_id as i32);
find_by!(users, find_by_ap_url, ap_url as String);
pub fn one_by_instance(conn: &Connection) -> Vec<User> {
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users::table.filter(users::instance_id.eq_any(users::table.select(users::instance_id).distinct()))
.load::<User>(conn)
.expect("Error in User::on_by_instance")
}
pub fn delete(&self, conn: &Connection) {
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use schema::post_authors;
// delete the posts if they is the only author
let all_their_posts_ids: Vec<i32> = post_authors::table
.filter(post_authors::author_id.eq(self.id))
.select(post_authors::post_id)
.load(conn)
.expect("Couldn't load posts IDs");
for post_id in all_their_posts_ids {
let has_other_authors = post_authors::table
.filter(post_authors::post_id.eq(post_id))
.filter(post_authors::author_id.ne(self.id))
.count()
.load(conn)
.expect("Couldn't count other authors").iter().next().unwrap_or(&0) > &0;
if !has_other_authors {
Post::get(conn, post_id).expect("Post is already gone").delete(conn);
}
}
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diesel::delete(self).execute(conn).expect("Couldn't remove user from DB");
}
pub fn get_instance(&self, conn: &Connection) -> Instance {
Instance::get(conn, self.instance_id).expect("Couldn't find instance")
}
pub fn grant_admin_rights(&self, conn: &Connection) {
diesel::update(self)
.set(users::is_admin.eq(true))
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.execute(conn)
.expect("Couldn't grant admin rights");
}
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pub fn update(&self, conn: &Connection, name: String, email: String, summary: String) -> User {
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diesel::update(self)
.set((
users::display_name.eq(name),
users::email.eq(email),
users::summary.eq(summary),
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)).execute(conn)
.expect("Couldn't update user");
User::get(conn, self.id).unwrap()
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}
pub fn count_local(conn: &Connection) -> usize {
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users::table.filter(users::instance_id.eq(Instance::local_id(conn)))
.load::<User>(conn)
.expect("Couldn't load local users")
.len()
}
pub fn find_local(conn: &Connection, username: String) -> Option<User> {
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User::find_by_name(conn, username, Instance::local_id(conn))
}
pub fn find_by_fqn(conn: &Connection, fqn: String) -> Option<User> {
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if fqn.contains("@") { // remote user
match Instance::find_by_domain(conn, String::from(fqn.split("@").last().unwrap())) {
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Some(instance) => {
match User::find_by_name(conn, String::from(fqn.split("@").nth(0).unwrap()), instance.id) {
Some(u) => Some(u),
None => User::fetch_from_webfinger(conn, fqn)
}
},
None => User::fetch_from_webfinger(conn, fqn)
}
} else { // local user
User::find_local(conn, fqn)
}
}
fn fetch_from_webfinger(conn: &Connection, acct: String) -> Option<User> {
match resolve(acct.clone(), *USE_HTTPS) {
Ok(wf) => wf.links.into_iter().find(|l| l.mime_type == Some(String::from("application/activity+json"))).and_then(|l| User::fetch_from_url(conn, l.href.expect("No href for AP WF link"))),
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Err(details) => {
println!("WF Error: {:?}", details);
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None
}
}
}
fn fetch(url: String) -> Option<CustomPerson> {
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let req = Client::new()
.get(&url[..])
.header(ACCEPT, HeaderValue::from_str(&ap_accept_header().into_iter().collect::<Vec<_>>().join(", ")).unwrap())
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.send();
match req {
Ok(mut res) => {
if let Ok(text) = &res.text() {
if let Ok(ap_sign) = serde_json::from_str::<ApSignature>(text) {
if let Ok(mut json) = serde_json::from_str::<CustomPerson>(text) {
json.custom_props = ap_sign; // without this workaround, publicKey is not correctly deserialized
Some(json)
} else { None }
} else { None }
} else { None }
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},
Err(e) => {
println!("User fetch error: {:?}", e);
None
}
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}
}
pub fn fetch_from_url(conn: &Connection, url: String) -> Option<User> {
User::fetch(url.clone()).map(|json| (User::from_activity(conn, json, Url::parse(url.as_ref()).unwrap().host_str().unwrap().to_string())))
}
fn from_activity(conn: &Connection, acct: CustomPerson, inst: String) -> User {
let instance = match Instance::find_by_domain(conn, inst.clone()) {
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Some(instance) => instance,
None => {
Instance::insert(conn, NewInstance {
name: inst.clone(),
public_domain: inst.clone(),
local: false,
// We don't really care about all the following for remote instances
long_description: SafeString::new(""),
short_description: SafeString::new(""),
default_license: String::new(),
open_registrations: true,
short_description_html: String::new(),
long_description_html: String::new()
})
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}
};
let avatar = Media::save_remote(conn, acct.object.object_props.icon_image().expect("User::from_activity: icon error")
.object_props.url_string().expect("User::from_activity: icon.url error"));
let user = User::insert(conn, NewUser {
username: acct.object.ap_actor_props.preferred_username_string().expect("User::from_activity: preferredUsername error"),
display_name: acct.object.object_props.name_string().expect("User::from_activity: name error"),
outbox_url: acct.object.ap_actor_props.outbox_string().expect("User::from_activity: outbox error"),
inbox_url: acct.object.ap_actor_props.inbox_string().expect("User::from_activity: inbox error"),
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is_admin: false,
summary: SafeString::new(&acct.object.object_props.summary_string().unwrap_or(String::new())),
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email: None,
hashed_password: None,
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instance_id: instance.id,
ap_url: acct.object.object_props.id_string().expect("User::from_activity: id error"),
public_key: acct.custom_props.public_key_publickey().expect("User::from_activity: publicKey error")
.public_key_pem_string().expect("User::from_activity: publicKey.publicKeyPem error"),
private_key: None,
shared_inbox_url: acct.object.ap_actor_props.endpoints_endpoint()
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.and_then(|e| e.shared_inbox_string()).ok(),
followers_endpoint: acct.object.ap_actor_props.followers_string().expect("User::from_activity: followers error"),
avatar_id: Some(avatar.id)
});
avatar.set_owner(conn, user.id);
user
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}
pub fn refetch(&self, conn: &Connection) {
User::fetch(self.ap_url.clone()).map(|json| {
let avatar = Media::save_remote(conn, json.object.object_props.icon_image().expect("User::refetch: icon error")
.object_props.url_string().expect("User::refetch: icon.url error"));
diesel::update(self)
.set((
users::username.eq(json.object.ap_actor_props.preferred_username_string().expect("User::refetch: preferredUsername error")),
users::display_name.eq(json.object.object_props.name_string().expect("User::refetch: name error")),
users::outbox_url.eq(json.object.ap_actor_props.outbox_string().expect("User::refetch: outbox error")),
users::inbox_url.eq(json.object.ap_actor_props.inbox_string().expect("User::refetch: inbox error")),
users::summary.eq(SafeString::new(&json.object.object_props.summary_string().unwrap_or(String::new()))),
users::followers_endpoint.eq(json.object.ap_actor_props.followers_string().expect("User::refetch: followers error")),
users::avatar_id.eq(Some(avatar.id)),
users::last_fetched_date.eq(Utc::now().naive_utc())
)).execute(conn)
.expect("Couldn't update user")
});
}
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pub fn hash_pass(pass: String) -> String {
bcrypt::hash(pass.as_str(), 10).unwrap()
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}
pub fn auth(&self, pass: String) -> bool {
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if let Ok(valid) = bcrypt::verify(pass.as_str(), self.hashed_password.clone().unwrap().as_str()) {
valid
} else {
false
}
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}
pub fn update_boxes(&self, conn: &Connection) {
let instance = self.get_instance(conn);
if self.outbox_url.len() == 0 {
diesel::update(self)
.set(users::outbox_url.eq(instance.compute_box(USER_PREFIX, self.username.clone(), "outbox")))
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.execute(conn).expect("Couldn't update outbox URL");
}
if self.inbox_url.len() == 0 {
diesel::update(self)
.set(users::inbox_url.eq(instance.compute_box(USER_PREFIX, self.username.clone(), "inbox")))
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.execute(conn).expect("Couldn't update inbox URL");
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}
if self.ap_url.len() == 0 {
diesel::update(self)
.set(users::ap_url.eq(instance.compute_box(USER_PREFIX, self.username.clone(), "")))
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.execute(conn).expect("Couldn't update AP URL");
}
if self.shared_inbox_url.is_none() {
diesel::update(self)
.set(users::shared_inbox_url.eq(ap_url(format!("{}/inbox", Instance::get_local(conn).unwrap().public_domain))))
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.execute(conn).expect("Couldn't update shared inbox URL");
}
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if self.followers_endpoint.len() == 0 {
diesel::update(self)
.set(users::followers_endpoint.eq(instance.compute_box(USER_PREFIX, self.username.clone(), "followers")))
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.execute(conn).expect("Couldn't update followers endpoint");
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}
}
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pub fn get_local_page(conn: &Connection, (min, max): (i32, i32)) -> Vec<User> {
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users::table.filter(users::instance_id.eq(1))
.order(users::username.asc())
.offset(min.into())
.limit((max - min).into())
.load::<User>(conn)
.expect("Error getting local users page")
}
pub fn outbox(&self, conn: &Connection) -> ActivityStream<OrderedCollection> {
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let acts = self.get_activities(conn);
let n_acts = acts.len();
let mut coll = OrderedCollection::default();
coll.collection_props.items = serde_json::to_value(acts).unwrap();
coll.collection_props.set_total_items_u64(n_acts as u64).unwrap();
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ActivityStream::new(coll)
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}
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pub fn fetch_outbox<T: Activity>(&self) -> Vec<T> {
let req = Client::new()
.get(&self.outbox_url[..])
.header(ACCEPT, HeaderValue::from_str(&ap_accept_header().into_iter().collect::<Vec<_>>().join(", ")).unwrap())
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.send();
match req {
Ok(mut res) => {
let text = &res.text().unwrap();
let json: serde_json::Value = serde_json::from_str(text).unwrap();
json["items"].as_array()
.expect("Outbox.items is not an array")
.into_iter()
.filter_map(|j| serde_json::from_value(j.clone()).ok())
.collect::<Vec<T>>()
},
Err(e) => {
println!("User outbox fetch error: {:?}", e);
vec![]
}
}
}
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pub fn fetch_followers_ids(&self) -> Vec<String> {
let req = Client::new()
.get(&self.followers_endpoint[..])
.header(ACCEPT, HeaderValue::from_str(&ap_accept_header().into_iter().collect::<Vec<_>>().join(", ")).unwrap())
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.send();
match req {
Ok(mut res) => {
let text = &res.text().unwrap();
let json: serde_json::Value = serde_json::from_str(text).unwrap();
json["items"].as_array()
.expect("Followers.items is not an array")
.into_iter()
.filter_map(|j| serde_json::from_value(j.clone()).ok())
.collect::<Vec<String>>()
},
Err(e) => {
println!("User followers fetch error: {:?}", e);
vec![]
}
}
}
fn get_activities(&self, conn: &Connection) -> Vec<serde_json::Value> {
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use schema::posts;
use schema::post_authors;
let posts_by_self = PostAuthor::belonging_to(self).select(post_authors::post_id);
let posts = posts::table
.filter(posts::published.eq(true))
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.filter(posts::id.eq_any(posts_by_self))
.load::<Post>(conn).unwrap();
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posts.into_iter().map(|p| {
serde_json::to_value(p.create_activity(conn)).unwrap()
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}).collect::<Vec<serde_json::Value>>()
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}
pub fn get_fqn(&self, conn: &Connection) -> String {
if self.instance_id == Instance::local_id(conn) {
self.username.clone()
} else {
format!("{}@{}", self.username, self.get_instance(conn).public_domain)
}
}
pub fn get_followers(&self, conn: &Connection) -> Vec<User> {
use schema::follows;
let follows = Follow::belonging_to(self).select(follows::follower_id);
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users::table.filter(users::id.eq_any(follows)).load::<User>(conn).unwrap()
}
pub fn get_followers_page(&self, conn: &Connection, (min, max): (i32, i32)) -> Vec<User> {
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use schema::follows;
let follows = Follow::belonging_to(self).select(follows::follower_id);
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users::table.filter(users::id.eq_any(follows))
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.offset(min.into())
.limit((max - min).into())
.load::<User>(conn).unwrap()
}
pub fn get_following(&self, conn: &Connection) -> Vec<User> {
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use schema::follows::dsl::*;
let f = follows.filter(follower_id.eq(self.id)).select(following_id);
users::table.filter(users::id.eq_any(f)).load::<User>(conn).unwrap()
}
pub fn is_followed_by(&self, conn: &Connection, other_id: i32) -> bool {
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use schema::follows;
follows::table
.filter(follows::follower_id.eq(other_id))
.filter(follows::following_id.eq(self.id))
.load::<Follow>(conn)
.expect("Couldn't load follow relationship")
.len() > 0
}
pub fn is_following(&self, conn: &Connection, other_id: i32) -> bool {
use schema::follows;
follows::table
.filter(follows::follower_id.eq(self.id))
.filter(follows::following_id.eq(other_id))
.load::<Follow>(conn)
.expect("Couldn't load follow relationship")
.len() > 0
}
pub fn has_liked(&self, conn: &Connection, post: &Post) -> bool {
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use schema::likes;
likes::table
.filter(likes::post_id.eq(post.id))
.filter(likes::user_id.eq(self.id))
.load::<Like>(conn)
.expect("Couldn't load likes")
.len() > 0
}
pub fn has_reshared(&self, conn: &Connection, post: &Post) -> bool {
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use schema::reshares;
reshares::table
.filter(reshares::post_id.eq(post.id))
.filter(reshares::user_id.eq(self.id))
.load::<Reshare>(conn)
.expect("Couldn't load reshares")
.len() > 0
}
pub fn is_author_in(&self, conn: &Connection, blog: Blog) -> bool {
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use schema::blog_authors;
blog_authors::table.filter(blog_authors::author_id.eq(self.id))
.filter(blog_authors::blog_id.eq(blog.id))
.load::<BlogAuthor>(conn)
.expect("Couldn't load blog/author relationship")
.len() > 0
}
pub fn get_keypair(&self) -> PKey<Private> {
PKey::from_rsa(Rsa::private_key_from_pem(self.private_key.clone().unwrap().as_ref()).unwrap()).unwrap()
}
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pub fn into_activity(&self, conn: &Connection) -> CustomPerson {
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let mut actor = Person::default();
actor.object_props.set_id_string(self.ap_url.clone()).expect("User::into_activity: id error");
actor.object_props.set_name_string(self.display_name.clone()).expect("User::into_activity: name error");
actor.object_props.set_summary_string(self.summary.get().clone()).expect("User::into_activity: summary error");
actor.object_props.set_url_string(self.ap_url.clone()).expect("User::into_activity: url error");
actor.ap_actor_props.set_inbox_string(self.inbox_url.clone()).expect("User::into_activity: inbox error");
actor.ap_actor_props.set_outbox_string(self.outbox_url.clone()).expect("User::into_activity: outbox error");
actor.ap_actor_props.set_preferred_username_string(self.username.clone()).expect("User::into_activity: preferredUsername error");
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actor.ap_actor_props.set_followers_string(self.followers_endpoint.clone()).expect("User::into_activity: followers error");
let mut endpoints = Endpoint::default();
endpoints.set_shared_inbox_string(ap_url(format!("{}/inbox/", BASE_URL.as_str()))).expect("User::into_activity: endpoints.sharedInbox error");
actor.ap_actor_props.set_endpoints_endpoint(endpoints).expect("User::into_activity: endpoints error");
let mut public_key = PublicKey::default();
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public_key.set_id_string(format!("{}#main-key", self.ap_url)).expect("User::into_activity: publicKey.id error");
public_key.set_owner_string(self.ap_url.clone()).expect("User::into_activity: publicKey.owner error");
public_key.set_public_key_pem_string(self.public_key.clone()).expect("User::into_activity: publicKey.publicKeyPem error");
let mut ap_signature = ApSignature::default();
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ap_signature.set_public_key_publickey(public_key).expect("User::into_activity: publicKey error");
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let mut avatar = Image::default();
avatar.object_props.set_url_string(self.avatar_id.and_then(|id| Media::get(conn, id).map(|m| m.url(conn))).unwrap_or(String::new()))
.expect("User::into_activity: icon.url error");
actor.object_props.set_icon_object(avatar).expect("User::into_activity: icon error");
CustomPerson::new(actor, ap_signature)
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}
pub fn to_json(&self, conn: &Connection) -> serde_json::Value {
let mut json = serde_json::to_value(self).unwrap();
json["fqn"] = serde_json::Value::String(self.get_fqn(conn));
json["name"] = if self.display_name.len() > 0 {
json!(self.display_name)
} else {
json!(self.get_fqn(conn))
};
json["avatar"] = json!(self.avatar_id.and_then(|id| Media::get(conn, id).map(|m| m.url(conn))).unwrap_or("/static/default-avatar.png".to_string()));
json
}
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pub fn webfinger(&self, conn: &Connection) -> Webfinger {
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Webfinger {
subject: format!("acct:{}@{}", self.username, self.get_instance(conn).public_domain),
aliases: vec![self.ap_url.clone()],
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links: vec![
Link {
rel: String::from("http://webfinger.net/rel/profile-page"),
mime_type: None,
href: Some(self.ap_url.clone()),
template: None
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},
Link {
rel: String::from("http://schemas.google.com/g/2010#updates-from"),
mime_type: Some(String::from("application/atom+xml")),
href: Some(self.get_instance(conn).compute_box(USER_PREFIX, self.username.clone(), "feed.atom")),
template: None
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},
Link {
rel: String::from("self"),
mime_type: Some(String::from("application/activity+json")),
href: Some(self.ap_url.clone()),
template: None
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}
]
}
}
pub fn from_url(conn: &Connection, url: String) -> Option<User> {
User::find_by_ap_url(conn, url.clone()).or_else(|| {
// The requested user was not in the DB
// We try to fetch it if it is remote
if Url::parse(url.as_ref()).unwrap().host_str().unwrap() != BASE_URL.as_str() {
User::fetch_from_url(conn, url)
} else {
None
}
})
}
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pub fn set_avatar(&self, conn: &Connection, id: i32) {
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diesel::update(self)
.set(users::avatar_id.eq(id))
.execute(conn)
.expect("Couldn't update user avatar");
}
pub fn needs_update(&self) -> bool {
(Utc::now().naive_utc() - self.last_fetched_date).num_days() > 1
}
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}
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impl<'a, 'r> FromRequest<'a, 'r> for User {
type Error = ();
fn from_request(request: &'a Request<'r>) -> request::Outcome<User, ()> {
let conn = request.guard::<DbConn>()?;
request.cookies()
.get_private(AUTH_COOKIE)
.and_then(|cookie| cookie.value().parse().ok())
.map(|id| User::get(&*conn, id).unwrap())
.or_forward(())
}
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}
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impl IntoId for User {
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fn into_id(self) -> Id {
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Id::new(self.ap_url.clone())
}
}
impl Object for User {}
impl Actor for User {}
impl WithInbox for User {
fn get_inbox_url(&self) -> String {
self.inbox_url.clone()
}
fn get_shared_inbox_url(&self) -> Option<String> {
self.shared_inbox_url.clone()
}
fn is_local(&self) -> bool {
self.instance_id == 1
}
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}
impl Signer for User {
fn get_key_id(&self) -> String {
format!("{}#main-key", self.ap_url)
}
fn sign(&self, to_sign: String) -> Vec<u8> {
let key = self.get_keypair();
let mut signer = sign::Signer::new(MessageDigest::sha256(), &key).unwrap();
signer.update(to_sign.as_bytes()).unwrap();
signer.sign_to_vec().unwrap()
}
fn verify(&self, data: String, signature: Vec<u8>) -> bool {
let key = PKey::from_rsa(Rsa::public_key_from_pem(self.public_key.as_ref()).unwrap()).unwrap();
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let mut verifier = sign::Verifier::new(MessageDigest::sha256(), &key).unwrap();
verifier.update(data.as_bytes()).unwrap();
verifier.verify(&signature).unwrap()
}
}
impl NewUser {
/// Creates a new local user
pub fn new_local(
conn: &Connection,
username: String,
display_name: String,
is_admin: bool,
summary: String,
email: String,
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password: String
) -> User {
let (pub_key, priv_key) = gen_keypair();
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User::insert(conn, NewUser {
username: username,
display_name: display_name,
outbox_url: String::from(""),
inbox_url: String::from(""),
is_admin: is_admin,
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summary: SafeString::new(&summary),
email: Some(email),
hashed_password: Some(password),
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instance_id: Instance::local_id(conn),
ap_url: String::from(""),
public_key: String::from_utf8(pub_key).unwrap(),
private_key: Some(String::from_utf8(priv_key).unwrap()),
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shared_inbox_url: None,
followers_endpoint: String::from(""),
avatar_id: None
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})
}
}