Removing some unecessary unwrap. Fixes #639

server/lemmy_utils/src/lib.rs

@@ -160,7 +160,9 @@ pub fn is_valid_username(name: &str) -> bool {
 
 // Can't do a regex here, reverse lookarounds not supported
 pub fn is_valid_preferred_username(preferred_username: &str) -> bool {
-  !preferred_username.starts_with("@") && preferred_username.len() >=3 && preferred_username.len() <= 20
+  !preferred_username.starts_with("@")
+    && preferred_username.len() >= 3
+    && preferred_username.len() <= 20
 }
 
 pub fn is_valid_community_name(name: &str) -> bool {
@@ -176,8 +178,8 @@ mod tests {
   use crate::{
     is_valid_community_name,
     is_valid_post_title,
-    is_valid_username,
     is_valid_preferred_username,
+    is_valid_username,
     remove_slurs,
     scrape_text_for_mentions,
     slur_check,

server/src/api/claims.rs

@@ -24,7 +24,7 @@ impl Claims {
     )
   }
 
-  pub fn jwt(user: User_, hostname: String) -> Jwt {
+  pub fn jwt(user: User_, hostname: String) -> Result<Jwt, jsonwebtoken::errors::Error> {
     let my_claims = Claims {
       id: user.id,
       iss: hostname,
@@ -34,6 +34,5 @@ impl Claims {
       &my_claims,
       &EncodingKey::from_secret(Settings::get().jwt_secret.as_ref()),
     )
-    .unwrap()
   }
 }

server/src/api/community.rs

@@ -11,6 +11,7 @@ use crate::{
   DbPool,
 };
 use actix_web::client::Client;
+use anyhow::Context;
 use lemmy_db::{
   diesel_option_overwrite,
   naive_now,
@@ -822,7 +823,10 @@ impl Perform for TransferCommunity {
 
     let mut admins = blocking(pool, move |conn| UserView::admins(conn)).await??;
 
-    let creator_index = admins.iter().position(|r| r.id == site_creator_id).unwrap();
+    let creator_index = admins
+      .iter()
+      .position(|r| r.id == site_creator_id)
+      .context("missing creator")?;
     let creator_user = admins.remove(creator_index);
     admins.insert(0, creator_user);
 
@@ -847,7 +851,7 @@ impl Perform for TransferCommunity {
     let creator_index = community_mods
       .iter()
       .position(|r| r.user_id == data.user_id)
-      .unwrap();
+      .context("missing creator")?;
     let creator_user = community_mods.remove(creator_index);
     community_mods.insert(0, creator_user);
 

server/src/api/site.rs

@@ -17,6 +17,7 @@ use crate::{
   LemmyError,
 };
 use actix_web::client::Client;
+use anyhow::Context;
 use lemmy_db::{
   category::*,
   comment_view::*,
@@ -655,7 +656,7 @@ impl Perform for TransferSite {
     let creator_index = admins
       .iter()
       .position(|r| r.id == site_view.creator_id)
-      .unwrap();
+      .context("missing creator")?;
     let creator_user = admins.remove(creator_index);
     admins.insert(0, creator_user);
 

server/src/api/user.rs

@@ -20,6 +20,7 @@ use crate::{
   LemmyError,
 };
 use actix_web::client::Client;
+use anyhow::Context;
 use bcrypt::verify;
 use captcha::{gen, Difficulty};
 use chrono::Duration;
@@ -324,7 +325,7 @@ impl Perform for Login {
 
     // Return the jwt
     Ok(LoginResponse {
-      jwt: Claims::jwt(user, Settings::get().hostname),
+      jwt: Claims::jwt(user, Settings::get().hostname)?,
     })
   }
 }
@@ -494,7 +495,7 @@ impl Perform for Register {
 
     // Return the jwt
     Ok(LoginResponse {
-      jwt: Claims::jwt(inserted_user, Settings::get().hostname),
+      jwt: Claims::jwt(inserted_user, Settings::get().hostname)?,
     })
   }
 }
@@ -667,7 +668,7 @@ impl Perform for SaveUserSettings {
 
     // Return the jwt
     Ok(LoginResponse {
-      jwt: Claims::jwt(updated_user, Settings::get().hostname),
+      jwt: Claims::jwt(updated_user, Settings::get().hostname)?,
     })
   }
 }
@@ -804,7 +805,10 @@ impl Perform for AddAdmin {
       blocking(pool, move |conn| Site::read(conn, 1).map(|s| s.creator_id)).await??;
 
     let mut admins = blocking(pool, move |conn| UserView::admins(conn)).await??;
-    let creator_index = admins.iter().position(|r| r.id == site_creator_id).unwrap();
+    let creator_index = admins
+      .iter()
+      .position(|r| r.id == site_creator_id)
+      .context("missing creator")?;
     let creator_user = admins.remove(creator_index);
     admins.insert(0, creator_user);
 
@@ -1183,7 +1187,7 @@ impl Perform for PasswordChange {
 
     // Return the jwt
     Ok(LoginResponse {
-      jwt: Claims::jwt(updated_user, Settings::get().hostname),
+      jwt: Claims::jwt(updated_user, Settings::get().hostname)?,
     })
   }
 }

server/src/routes/feeds.rs

@@ -16,7 +16,7 @@ use lemmy_db::{
   ListingType,
   SortType,
 };
-use lemmy_utils::{markdown_to_html, settings::Settings};
+use lemmy_utils::{location_info, markdown_to_html, settings::Settings};
 use rss::{CategoryBuilder, ChannelBuilder, GuidBuilder, Item, ItemBuilder};
 use serde::Deserialize;
 use std::str::FromStr;
@@ -62,7 +62,7 @@ fn get_feed_all_data(conn: &PgConnection, sort_type: &SortType) -> Result<String
     .sort(sort_type)
     .list()?;
 
-  let items = create_post_items(posts);
+  let items = create_post_items(posts)?;
 
   let mut channel_builder = ChannelBuilder::default();
   channel_builder
@@ -74,7 +74,12 @@ fn get_feed_all_data(conn: &PgConnection, sort_type: &SortType) -> Result<String
     channel_builder.description(&site_desc);
   }
 
-  Ok(channel_builder.build().unwrap().to_string())
+  Ok(
+    channel_builder
+      .build()
+      .map_err(|_| anyhow!(location_info!()))?
+      .to_string(),
+  )
 }
 
 async fn get_feed(
@@ -135,7 +140,7 @@ fn get_feed_user(
     .for_creator_id(user.id)
     .list()?;
 
-  let items = create_post_items(posts);
+  let items = create_post_items(posts)?;
 
   let mut channel_builder = ChannelBuilder::default();
   channel_builder
@@ -160,7 +165,7 @@ fn get_feed_community(
     .for_community_id(community.id)
     .list()?;
 
-  let items = create_post_items(posts);
+  let items = create_post_items(posts)?;
 
   let mut channel_builder = ChannelBuilder::default();
   channel_builder
@@ -189,7 +194,7 @@ fn get_feed_front(
     .my_user_id(user_id)
     .list()?;
 
-  let items = create_post_items(posts);
+  let items = create_post_items(posts)?;
 
   let mut channel_builder = ChannelBuilder::default();
   channel_builder
@@ -218,7 +223,7 @@ fn get_feed_inbox(conn: &PgConnection, jwt: String) -> Result<ChannelBuilder, Le
     .sort(&sort)
     .list()?;
 
-  let items = create_reply_and_mention_items(replies, mentions);
+  let items = create_reply_and_mention_items(replies, mentions)?;
 
   let mut channel_builder = ChannelBuilder::default();
   channel_builder
@@ -236,7 +241,7 @@ fn get_feed_inbox(conn: &PgConnection, jwt: String) -> Result<ChannelBuilder, Le
 fn create_reply_and_mention_items(
   replies: Vec<ReplyView>,
   mentions: Vec<UserMentionView>,
-) -> Vec<Item> {
+) -> Result<Vec<Item>, LemmyError> {
   let mut reply_items: Vec<Item> = replies
     .iter()
     .map(|r| {
@@ -247,6 +252,7 @@ fn create_reply_and_mention_items(
         r.id
       );
       build_item(&r.creator_name, &r.published, &reply_url, &r.content)
+        .unwrap_or_else(|_| panic!(location_info!()))
     })
     .collect();
 
@@ -260,14 +266,20 @@ fn create_reply_and_mention_items(
         m.id
       );
       build_item(&m.creator_name, &m.published, &mention_url, &m.content)
+        .unwrap_or_else(|_| panic!(location_info!()))
     })
     .collect();
 
   reply_items.append(&mut mention_items);
-  reply_items
+  Ok(reply_items)
 }
 
-fn build_item(creator_name: &str, published: &NaiveDateTime, url: &str, content: &str) -> Item {
+fn build_item(
+  creator_name: &str,
+  published: &NaiveDateTime,
+  url: &str,
+  content: &str,
+) -> Result<Item, LemmyError> {
   let mut i = ItemBuilder::default();
   i.title(format!("Reply from {}", creator_name));
   let author_url = format!("https://{}/u/{}", Settings::get().hostname, creator_name);
@@ -278,16 +290,20 @@ fn build_item(creator_name: &str, published: &NaiveDateTime, url: &str, content:
   let dt = DateTime::<Utc>::from_utc(*published, Utc);
   i.pub_date(dt.to_rfc2822());
   i.comments(url.to_owned());
-  let guid = GuidBuilder::default().permalink(true).value(url).build();
+  let guid = GuidBuilder::default()
-  i.guid(guid.unwrap());
+    .permalink(true)
+    .value(url)
+    .build()
+    .map_err(|_| anyhow!(location_info!()))?;
+  i.guid(guid);
   i.link(url.to_owned());
   // TODO add images
   let html = markdown_to_html(&content.to_string());
   i.description(html);
-  i.build().unwrap()
+  Ok(i.build().map_err(|_| anyhow!(location_info!()))?)
 }
 
-fn create_post_items(posts: Vec<PostView>) -> Vec<Item> {
+fn create_post_items(posts: Vec<PostView>) -> Result<Vec<Item>, LemmyError> {
   let mut items: Vec<Item> = Vec::new();
 
   for p in posts {
@@ -309,8 +325,9 @@ fn create_post_items(posts: Vec<PostView>) -> Vec<Item> {
     let guid = GuidBuilder::default()
       .permalink(true)
       .value(&post_url)
-      .build();
+      .build()
-    i.guid(guid.unwrap());
+      .map_err(|_| anyhow!(location_info!()))?;
+    i.guid(guid);
 
     let community_url = format!(
       "https://{}/c/{}",
@@ -324,8 +341,10 @@ fn create_post_items(posts: Vec<PostView>) -> Vec<Item> {
         p.community_name, community_url
       ))
       .domain(Settings::get().hostname.to_owned())
-      .build();
+      .build()
-    i.categories(vec![category.unwrap()]);
+      .map_err(|_| anyhow!(location_info!()))?;
+
+    i.categories(vec![category]);
 
     if let Some(url) = p.url {
       i.link(url);
@@ -348,8 +367,8 @@ fn create_post_items(posts: Vec<PostView>) -> Vec<Item> {
 
     i.description(description);
 
-    items.push(i.build().unwrap());
+    items.push(i.build().map_err(|_| anyhow!(location_info!()))?);
   }
 
-  items
+  Ok(items)
 }

server/src/websocket/server.rs

@@ -16,7 +16,9 @@ use crate::{
   UserId,
 };
 use actix_web::client::Client;
+use anyhow::Context as acontext;
 use lemmy_db::naive_now;
+use lemmy_utils::location_info;
 
 /// Chat server sends this messages to session
 #[derive(Message)]
@@ -200,7 +202,11 @@ impl ChatServer {
     }
   }
 
-  pub fn join_community_room(&mut self, community_id: CommunityId, id: ConnectionId) {
+  pub fn join_community_room(
+    &mut self,
+    community_id: CommunityId,
+    id: ConnectionId,
+  ) -> Result<(), LemmyError> {
     // remove session from all rooms
     for sessions in self.community_rooms.values_mut() {
       sessions.remove(&id);
@@ -220,11 +226,12 @@ impl ChatServer {
     self
       .community_rooms
       .get_mut(&community_id)
-      .unwrap()
+      .context(location_info!())?
       .insert(id);
+    Ok(())
   }
 
-  pub fn join_post_room(&mut self, post_id: PostId, id: ConnectionId) {
+  pub fn join_post_room(&mut self, post_id: PostId, id: ConnectionId) -> Result<(), LemmyError> {
     // remove session from all rooms
     for sessions in self.post_rooms.values_mut() {
       sessions.remove(&id);
@@ -244,10 +251,16 @@ impl ChatServer {
       self.post_rooms.insert(post_id, HashSet::new());
     }
 
-    self.post_rooms.get_mut(&post_id).unwrap().insert(id);
+    self
+      .post_rooms
+      .get_mut(&post_id)
+      .context(location_info!())?
+      .insert(id);
+
+    Ok(())
   }
 
-  pub fn join_user_room(&mut self, user_id: UserId, id: ConnectionId) {
+  pub fn join_user_room(&mut self, user_id: UserId, id: ConnectionId) -> Result<(), LemmyError> {
     // remove session from all rooms
     for sessions in self.user_rooms.values_mut() {
       sessions.remove(&id);
@@ -258,7 +271,13 @@ impl ChatServer {
       self.user_rooms.insert(user_id, HashSet::new());
     }
 
-    self.user_rooms.get_mut(&user_id).unwrap().insert(id);
+    self
+      .user_rooms
+      .get_mut(&user_id)
+      .context(location_info!())?
+      .insert(id);
+
+    Ok(())
   }
 
   fn send_post_room_message<Response>(
@@ -675,7 +694,7 @@ where
   fn handle(&mut self, msg: SendAllMessage<Response>, _: &mut Context<Self>) {
     self
       .send_all_message(&msg.op, &msg.response, msg.my_id)
-      .unwrap();
+      .ok();
   }
 }
 
@@ -688,7 +707,7 @@ where
   fn handle(&mut self, msg: SendUserRoomMessage<Response>, _: &mut Context<Self>) {
     self
       .send_user_room_message(&msg.op, &msg.response, msg.recipient_id, msg.my_id)
-      .unwrap();
+      .ok();
   }
 }
 
@@ -701,7 +720,7 @@ where
   fn handle(&mut self, msg: SendCommunityRoomMessage<Response>, _: &mut Context<Self>) {
     self
       .send_community_room_message(&msg.op, &msg.response, msg.community_id, msg.my_id)
-      .unwrap();
+      .ok();
   }
 }
 
@@ -709,7 +728,7 @@ impl Handler<SendPost> for ChatServer {
   type Result = ();
 
   fn handle(&mut self, msg: SendPost, _: &mut Context<Self>) {
-    self.send_post(&msg.op, &msg.post, msg.my_id).unwrap();
+    self.send_post(&msg.op, &msg.post, msg.my_id).ok();
   }
 }
 
@@ -717,7 +736,7 @@ impl Handler<SendComment> for ChatServer {
   type Result = ();
 
   fn handle(&mut self, msg: SendComment, _: &mut Context<Self>) {
-    self.send_comment(&msg.op, &msg.comment, msg.my_id).unwrap();
+    self.send_comment(&msg.op, &msg.comment, msg.my_id).ok();
   }
 }
 
@@ -725,7 +744,7 @@ impl Handler<JoinUserRoom> for ChatServer {
   type Result = ();
 
   fn handle(&mut self, msg: JoinUserRoom, _: &mut Context<Self>) {
-    self.join_user_room(msg.user_id, msg.id);
+    self.join_user_room(msg.user_id, msg.id).ok();
   }
 }
 
@@ -733,7 +752,7 @@ impl Handler<JoinCommunityRoom> for ChatServer {
   type Result = ();
 
   fn handle(&mut self, msg: JoinCommunityRoom, _: &mut Context<Self>) {
-    self.join_community_room(msg.community_id, msg.id);
+    self.join_community_room(msg.community_id, msg.id).ok();
   }
 }
 
@@ -741,7 +760,7 @@ impl Handler<JoinPostRoom> for ChatServer {
   type Result = ();
 
   fn handle(&mut self, msg: JoinPostRoom, _: &mut Context<Self>) {
-    self.join_post_room(msg.post_id, msg.id);
+    self.join_post_room(msg.post_id, msg.id).ok();
   }
 }