Merge branch 'ws'

# Conflicts:
#	Cargo.toml
#	src/api/core/ciphers.rs
#	src/main.rs

Cargo.toml

@@ -15,9 +15,18 @@ reqwest = "0.8.8"
 # multipart/form-data support
 multipart = "0.15.2"
 
+# WebSockets library
+ws = "0.7.8"
+
+# MessagePack library
+rmpv = "0.4.0"
+
+# Concurrent hashmap implementation
+chashmap = "2.2.0"
+
 # A generic serialization/deserialization framework
-serde = "1.0.74"
-serde_derive = "1.0.74"
+serde = "1.0.75"
+serde_derive = "1.0.75"
 serde_json = "1.0.26"
 
 # A safe, extensible ORM and Query builder
@@ -34,7 +43,7 @@ ring = { version = "= 0.11.0", features = ["rsa_signing"] }
 uuid = { version = "0.6.5", features = ["v4"] }
 
 # Date and time library for Rust
-chrono = "0.4.5"
+chrono = "0.4.6"
 
 # TOTP library
 oath = "0.10.2"
@@ -58,14 +67,19 @@ lazy_static = "1.1.0"
 num-traits = "0.2.5"
 num-derive = "0.2.2"
 
+# Email libraries
 lettre = "0.8.2"
 lettre_email = "0.8.2"
 native-tls = "0.1.5"
 fast_chemail = "0.9.5"
 
+# Number encoding library
+byteorder = "1.2.6"
+
 [patch.crates-io]
  # Make jwt use ring 0.11, to match rocket
 jsonwebtoken = { path = "libs/jsonwebtoken" }
+rmp = { git = 'https://github.com/dani-garcia/msgpack-rust' }
 
 # Version 0.1.2 from crates.io lacks a commit that fixes a certificate error
 u2f = { git = 'https://github.com/wisespace-io/u2f-rs', rev = '193de35093a44' }

Dockerfile

@@ -76,6 +76,7 @@ RUN apt-get update && apt-get install -y\
 RUN mkdir /data
 VOLUME /data
 EXPOSE 80
+EXPOSE 3012
 
 # Copies the files from the context (env file and web-vault)
 # and the binary from the "build" stage to the current stage

Dockerfile.alpine

@@ -68,6 +68,7 @@ RUN apk add \
 RUN mkdir /data
 VOLUME /data
 EXPOSE 80
+EXPOSE 3012
 
 # Copies the files from the context (env file and web-vault)
 # and the binary from the "build" stage to the current stage

README.md

@@ -25,6 +25,7 @@ _*Note, that this project is not associated with the [Bitwarden](https://bitward
   - [Disable registration of new users](#disable-registration-of-new-users)
   - [Disable invitations](#disable-invitations)
   - [Enabling HTTPS](#enabling-https)
+  - [Enabling WebSocket notifications](#enabling-websocket-notifications)
   - [Enabling U2F authentication](#enabling-u2f-authentication)
   - [Changing persistent data location](#changing-persistent-data-location)
     - [/data prefix:](#data-prefix)
@@ -175,6 +176,37 @@ docker run -d --name bitwarden \
 ```
 Note that you need to mount ssl files and you need to forward appropriate port.
 
+### Enabling WebSocket notifications
+*Important: This does not apply to the mobile clients, which use push notifications.*
+
+To enable WebSockets notifications, an external reverse proxy is necessary, and it must be configured to do the following:
+- Route the `/notifications/hub` endpoint to the WebSocket server, by default at port `3012`, making sure to pass the `Connection` and `Upgrade` headers.
+- Route everything else, including `/notifications/hub/negotiate`, to the standard Rocket server, by default at port `80`.
+- If using Docker, you may need to map both ports with the `-p` flag
+
+An example configuration is included next for a [Caddy](https://caddyserver.com/) proxy server, and assumes the proxy is running in the same computer as `bitwarden_rs`:
+
+```r
+localhost:2015 {
+    # The negotiation endpoint is also proxied to Rocket
+    proxy /notifications/hub/negotiate 0.0.0.0:80 {
+        transparent
+    }
+    
+    # Notifications redirected to the websockets server
+    proxy /notifications/hub 0.0.0.0:3012 {
+        websocket
+    }
+    
+    # Proxy the Root directory to Rocket
+    proxy / 0.0.0.0:80 {
+        transparent
+    }
+}
+```
+
+Note: The reason for this workaround is the lack of support for WebSockets from Rocket (though [it's a planned feature](https://github.com/SergioBenitez/Rocket/issues/90)), which forces us to launch a secondary server on a separate port.
+
 ### Enabling U2F authentication
 To enable U2F authentication, you must be serving bitwarden_rs from an HTTPS domain with a valid certificate (Either using the included
 HTTPS options or with a reverse proxy). We recommend using a free certificate from Let's Encrypt.

src/api/core/ciphers.rs

@@ -1,6 +1,7 @@
 use std::path::Path;
 use std::collections::HashSet;
 
+use rocket::State;
 use rocket::Data;
 use rocket::http::ContentType;
 
@@ -16,7 +17,7 @@ use db::models::*;
 
 use crypto;
 
-use api::{self, PasswordData, JsonResult, EmptyResult, JsonUpcase};
+use api::{self, PasswordData, JsonResult, EmptyResult, JsonUpcase, WebSocketUsers, UpdateType};
 use auth::Headers;
 
 use CONFIG;
@@ -117,22 +118,22 @@ pub struct CipherData {
 }
 
 #[post("/ciphers/admin", data = "<data>")]
-fn post_ciphers_admin(data: JsonUpcase<CipherData>, headers: Headers, conn: DbConn) -> JsonResult {
+fn post_ciphers_admin(data: JsonUpcase<CipherData>, headers: Headers, conn: DbConn, ws: State<WebSocketUsers>) -> JsonResult {
     // TODO: Implement this correctly
-    post_ciphers(data, headers, conn)
+    post_ciphers(data, headers, conn, ws)
 }
 
 #[post("/ciphers", data = "<data>")]
-fn post_ciphers(data: JsonUpcase<CipherData>, headers: Headers, conn: DbConn) -> JsonResult {
+fn post_ciphers(data: JsonUpcase<CipherData>, headers: Headers, conn: DbConn, ws: State<WebSocketUsers>) -> JsonResult {
     let data: CipherData = data.into_inner().data;
 
     let mut cipher = Cipher::new(data.Type, data.Name.clone());
-    update_cipher_from_data(&mut cipher, data, &headers, false, &conn)?;
+    update_cipher_from_data(&mut cipher, data, &headers, false, &conn, &ws, UpdateType::SyncCipherCreate)?;
 
     Ok(Json(cipher.to_json(&headers.host, &headers.user.uuid, &conn)))
 }
 
-pub fn update_cipher_from_data(cipher: &mut Cipher, data: CipherData, headers: &Headers, shared_to_collection: bool, conn: &DbConn) -> EmptyResult {
+pub fn update_cipher_from_data(cipher: &mut Cipher, data: CipherData, headers: &Headers, shared_to_collection: bool, conn: &DbConn, ws: &State<WebSocketUsers>, ut: UpdateType) -> EmptyResult {
     if let Some(org_id) = data.OrganizationId {
         match UserOrganization::find_by_user_and_org(&headers.user.uuid, &org_id, &conn) {
             None => err!("You don't have permission to add item to organization"),
@@ -190,6 +191,7 @@ pub fn update_cipher_from_data(cipher: &mut Cipher, data: CipherData, headers: &
     cipher.password_history = data.PasswordHistory.map(|f| f.to_string());
 
     cipher.save(&conn);
+    ws.send_cipher_update(ut, &cipher, &cipher.update_users_revision(&conn));
 
     if cipher.move_to_folder(data.FolderId, &headers.user.uuid, &conn).is_err() {
         err!("Error saving the folder information")
@@ -219,7 +221,7 @@ struct RelationsData {
 
 
 #[post("/ciphers/import", data = "<data>")]
-fn post_ciphers_import(data: JsonUpcase<ImportData>, headers: Headers, conn: DbConn) -> EmptyResult {
+fn post_ciphers_import(data: JsonUpcase<ImportData>, headers: Headers, conn: DbConn, ws: State<WebSocketUsers>) -> EmptyResult {
     let data: ImportData = data.into_inner().data;
 
     // Read and create the folders
@@ -243,7 +245,7 @@ fn post_ciphers_import(data: JsonUpcase<ImportData>, headers: Headers, conn: DbC
             .map(|i| folders[*i].uuid.clone());
 
         let mut cipher = Cipher::new(cipher_data.Type, cipher_data.Name.clone());
-        update_cipher_from_data(&mut cipher, cipher_data, &headers, false, &conn)?;
+        update_cipher_from_data(&mut cipher, cipher_data, &headers, false, &conn, &ws, UpdateType::SyncCipherCreate)?;
 
         cipher.move_to_folder(folder_uuid, &headers.user.uuid.clone(), &conn).ok();
     }
@@ -257,22 +259,22 @@ fn post_ciphers_import(data: JsonUpcase<ImportData>, headers: Headers, conn: DbC
 
 
 #[put("/ciphers/<uuid>/admin", data = "<data>")]
-fn put_cipher_admin(uuid: String, data: JsonUpcase<CipherData>, headers: Headers, conn: DbConn) -> JsonResult {
-    put_cipher(uuid, data, headers, conn)
+fn put_cipher_admin(uuid: String, data: JsonUpcase<CipherData>, headers: Headers, conn: DbConn, ws: State<WebSocketUsers>) -> JsonResult {
+    put_cipher(uuid, data, headers, conn, ws)
 }
 
 #[post("/ciphers/<uuid>/admin", data = "<data>")]
-fn post_cipher_admin(uuid: String, data: JsonUpcase<CipherData>, headers: Headers, conn: DbConn) -> JsonResult {
-    post_cipher(uuid, data, headers, conn)
+fn post_cipher_admin(uuid: String, data: JsonUpcase<CipherData>, headers: Headers, conn: DbConn, ws: State<WebSocketUsers>) -> JsonResult {
+    post_cipher(uuid, data, headers, conn, ws)
 }
 
 #[post("/ciphers/<uuid>", data = "<data>")]
-fn post_cipher(uuid: String, data: JsonUpcase<CipherData>, headers: Headers, conn: DbConn) -> JsonResult {
-    put_cipher(uuid, data, headers, conn)
+fn post_cipher(uuid: String, data: JsonUpcase<CipherData>, headers: Headers, conn: DbConn, ws: State<WebSocketUsers>) -> JsonResult {
+    put_cipher(uuid, data, headers, conn, ws)
 }
 
 #[put("/ciphers/<uuid>", data = "<data>")]
-fn put_cipher(uuid: String, data: JsonUpcase<CipherData>, headers: Headers, conn: DbConn) -> JsonResult {
+fn put_cipher(uuid: String, data: JsonUpcase<CipherData>, headers: Headers, conn: DbConn, ws: State<WebSocketUsers>) -> JsonResult {
     let data: CipherData = data.into_inner().data;
 
     let mut cipher = match Cipher::find_by_uuid(&uuid, &conn) {
@@ -284,7 +286,7 @@ fn put_cipher(uuid: String, data: JsonUpcase<CipherData>, headers: Headers, conn
         err!("Cipher is not write accessible")
     }
 
-    update_cipher_from_data(&mut cipher, data, &headers, false, &conn)?;
+    update_cipher_from_data(&mut cipher, data, &headers, false, &conn, &ws, UpdateType::SyncCipherUpdate)?;
 
     Ok(Json(cipher.to_json(&headers.host, &headers.user.uuid, &conn)))
 }
@@ -349,17 +351,17 @@ struct ShareCipherData {
 }
 
 #[post("/ciphers/<uuid>/share", data = "<data>")]
-fn post_cipher_share(uuid: String, data: JsonUpcase<ShareCipherData>, headers: Headers, conn: DbConn) -> JsonResult {
+fn post_cipher_share(uuid: String, data: JsonUpcase<ShareCipherData>, headers: Headers, conn: DbConn, ws: State<WebSocketUsers>) -> JsonResult {
     let data: ShareCipherData = data.into_inner().data;
 
-    share_cipher_by_uuid(&uuid, data, &headers, &conn)
+    share_cipher_by_uuid(&uuid, data, &headers, &conn, &ws)
 }
 
 #[put("/ciphers/<uuid>/share", data = "<data>")]
-fn put_cipher_share(uuid: String, data: JsonUpcase<ShareCipherData>, headers: Headers, conn: DbConn) -> JsonResult {
+fn put_cipher_share(uuid: String, data: JsonUpcase<ShareCipherData>, headers: Headers, conn: DbConn, ws: State<WebSocketUsers>) -> JsonResult {
     let data: ShareCipherData = data.into_inner().data;
 
-    share_cipher_by_uuid(&uuid, data, &headers, &conn)
+    share_cipher_by_uuid(&uuid, data, &headers, &conn, &ws)
 }
 
 #[derive(Deserialize)]
@@ -370,7 +372,7 @@ struct ShareSelectedCipherData {
 }
 
 #[put("/ciphers/share", data = "<data>")]
-fn put_cipher_share_seleted(data: JsonUpcase<ShareSelectedCipherData>, headers: Headers, conn: DbConn) -> EmptyResult {
+fn put_cipher_share_seleted(data: JsonUpcase<ShareSelectedCipherData>, headers: Headers, conn: DbConn, ws: State<WebSocketUsers>) -> EmptyResult {
     let mut data: ShareSelectedCipherData = data.into_inner().data;
     let mut cipher_ids: Vec<String> = Vec::new();
 
@@ -402,15 +404,16 @@ fn put_cipher_share_seleted(data: JsonUpcase<ShareSelectedCipherData>, headers:
         };
 
         match shared_cipher_data.Cipher.Id.take() {
-            Some(id) => share_cipher_by_uuid(&id, shared_cipher_data , &headers, &conn)?,
+            Some(id) => share_cipher_by_uuid(&id, shared_cipher_data , &headers, &conn, &ws)?,
             None => err!("Request missing ids field")
+
         };
     }
 
     Ok(())
 }
 
-fn share_cipher_by_uuid(uuid: &str, data: ShareCipherData, headers: &Headers, conn: &DbConn) -> JsonResult {
+fn share_cipher_by_uuid(uuid: &str, data: ShareCipherData, headers: &Headers, conn: &DbConn, ws: &State<WebSocketUsers>) -> JsonResult {
     let mut cipher = match Cipher::find_by_uuid(&uuid, &conn) {
         Some(cipher) => {
             if cipher.is_write_accessible_to_user(&headers.user.uuid, &conn) {
@@ -443,7 +446,7 @@ fn share_cipher_by_uuid(uuid: &str, data: ShareCipherData, headers: &Headers, co
                     }
                 }
             }
-            update_cipher_from_data(&mut cipher, data.Cipher, &headers, shared_to_collection, &conn)?;
+            update_cipher_from_data(&mut cipher, data.Cipher, &headers, shared_to_collection, &conn, &ws, UpdateType::SyncCipherUpdate)?;
 
             Ok(Json(cipher.to_json(&headers.host, &headers.user.uuid, &conn)))
         }
@@ -509,53 +512,53 @@ fn post_attachment_admin(uuid: String, data: Data, content_type: &ContentType, h
 }
 
 #[post("/ciphers/<uuid>/attachment/<attachment_id>/share", format = "multipart/form-data", data = "<data>")]
-fn post_attachment_share(uuid: String, attachment_id: String, data: Data, content_type: &ContentType, headers: Headers, conn: DbConn) -> JsonResult {
-    _delete_cipher_attachment_by_id(&uuid, &attachment_id, &headers, &conn)?;
+fn post_attachment_share(uuid: String, attachment_id: String, data: Data, content_type: &ContentType, headers: Headers, conn: DbConn, ws: State<WebSocketUsers>) -> JsonResult {
+    _delete_cipher_attachment_by_id(&uuid, &attachment_id, &headers, &conn, &ws)?;
     post_attachment(uuid, data, content_type, headers, conn)
 }
 
 #[post("/ciphers/<uuid>/attachment/<attachment_id>/delete-admin")]
-fn delete_attachment_post_admin(uuid: String, attachment_id: String, headers: Headers, conn: DbConn) -> EmptyResult {
-    delete_attachment(uuid, attachment_id, headers, conn)
+fn delete_attachment_post_admin(uuid: String, attachment_id: String, headers: Headers, conn: DbConn, ws: State<WebSocketUsers>) -> EmptyResult {
+    delete_attachment(uuid, attachment_id, headers, conn, ws)
 }
 
 #[post("/ciphers/<uuid>/attachment/<attachment_id>/delete")]
-fn delete_attachment_post(uuid: String, attachment_id: String, headers: Headers, conn: DbConn) -> EmptyResult {
-    delete_attachment(uuid, attachment_id, headers, conn)
+fn delete_attachment_post(uuid: String, attachment_id: String, headers: Headers, conn: DbConn, ws: State<WebSocketUsers>) -> EmptyResult {
+    delete_attachment(uuid, attachment_id, headers, conn, ws)
 }
 
 #[delete("/ciphers/<uuid>/attachment/<attachment_id>")]
-fn delete_attachment(uuid: String, attachment_id: String, headers: Headers, conn: DbConn) -> EmptyResult {
-    _delete_cipher_attachment_by_id(&uuid, &attachment_id, &headers, &conn)
+fn delete_attachment(uuid: String, attachment_id: String, headers: Headers, conn: DbConn, ws: State<WebSocketUsers>) -> EmptyResult {
+    _delete_cipher_attachment_by_id(&uuid, &attachment_id, &headers, &conn, &ws)
 }
 
 #[delete("/ciphers/<uuid>/attachment/<attachment_id>/admin")]
-fn delete_attachment_admin(uuid: String, attachment_id: String, headers: Headers, conn: DbConn) -> EmptyResult {
-    _delete_cipher_attachment_by_id(&uuid, &attachment_id, &headers, &conn)
+fn delete_attachment_admin(uuid: String, attachment_id: String, headers: Headers, conn: DbConn, ws: State<WebSocketUsers>) -> EmptyResult {
+    _delete_cipher_attachment_by_id(&uuid, &attachment_id, &headers, &conn, &ws)
 }
 
 #[post("/ciphers/<uuid>/delete")]
-fn delete_cipher_post(uuid: String, headers: Headers, conn: DbConn) -> EmptyResult {
-    _delete_cipher_by_uuid(&uuid, &headers, &conn)
+fn delete_cipher_post(uuid: String, headers: Headers, conn: DbConn, ws: State<WebSocketUsers>) -> EmptyResult {
+    _delete_cipher_by_uuid(&uuid, &headers, &conn, &ws)
 }
 
 #[post("/ciphers/<uuid>/delete-admin")]
-fn delete_cipher_post_admin(uuid: String, headers: Headers, conn: DbConn) -> EmptyResult {
-    _delete_cipher_by_uuid(&uuid, &headers, &conn)
+fn delete_cipher_post_admin(uuid: String, headers: Headers, conn: DbConn, ws: State<WebSocketUsers>) -> EmptyResult {
+    _delete_cipher_by_uuid(&uuid, &headers, &conn, &ws)
 }
 
 #[delete("/ciphers/<uuid>")]
-fn delete_cipher(uuid: String, headers: Headers, conn: DbConn) -> EmptyResult {
-    _delete_cipher_by_uuid(&uuid, &headers, &conn)
+fn delete_cipher(uuid: String, headers: Headers, conn: DbConn, ws: State<WebSocketUsers>) -> EmptyResult {
+    _delete_cipher_by_uuid(&uuid, &headers, &conn, &ws)
 }
 
 #[delete("/ciphers/<uuid>/admin")]
-fn delete_cipher_admin(uuid: String, headers: Headers, conn: DbConn) -> EmptyResult {
-    _delete_cipher_by_uuid(&uuid, &headers, &conn)
+fn delete_cipher_admin(uuid: String, headers: Headers, conn: DbConn, ws: State<WebSocketUsers>) -> EmptyResult {
+    _delete_cipher_by_uuid(&uuid, &headers, &conn, &ws)
 }
 
 #[delete("/ciphers", data = "<data>")]
-fn delete_cipher_selected(data: JsonUpcase<Value>, headers: Headers, conn: DbConn) -> EmptyResult {
+fn delete_cipher_selected(data: JsonUpcase<Value>, headers: Headers, conn: DbConn, ws: State<WebSocketUsers>) -> EmptyResult {
     let data: Value = data.into_inner().data;
 
     let uuids = match data.get("Ids") {
@@ -567,7 +570,7 @@ fn delete_cipher_selected(data: JsonUpcase<Value>, headers: Headers, conn: DbCon
     };
 
     for uuid in uuids {
-        if let error @ Err(_) = _delete_cipher_by_uuid(uuid, &headers, &conn) {
+        if let error @ Err(_) = _delete_cipher_by_uuid(uuid, &headers, &conn, &ws) {
             return error;
         };
     }
@@ -576,12 +579,12 @@ fn delete_cipher_selected(data: JsonUpcase<Value>, headers: Headers, conn: DbCon
 }
 
 #[post("/ciphers/delete", data = "<data>")]
-fn delete_cipher_selected_post(data: JsonUpcase<Value>, headers: Headers, conn: DbConn) -> EmptyResult {
-    delete_cipher_selected(data, headers, conn)
+fn delete_cipher_selected_post(data: JsonUpcase<Value>, headers: Headers, conn: DbConn, ws: State<WebSocketUsers>) -> EmptyResult {
+    delete_cipher_selected(data, headers, conn, ws)
 }
 
 #[post("/ciphers/move", data = "<data>")]
-fn move_cipher_selected(data: JsonUpcase<Value>, headers: Headers, conn: DbConn) -> EmptyResult {
+fn move_cipher_selected(data: JsonUpcase<Value>, headers: Headers, conn: DbConn, ws: State<WebSocketUsers>) -> EmptyResult {
     let data = data.into_inner().data;
 
     let folder_id = match data.get("FolderId") {
@@ -627,18 +630,19 @@ fn move_cipher_selected(data: JsonUpcase<Value>, headers: Headers, conn: DbConn)
             err!("Error saving the folder information")
         }
         cipher.save(&conn);
+        ws.send_cipher_update(UpdateType::SyncCipherUpdate, &cipher, &cipher.update_users_revision(&conn));
     }
 
     Ok(())
 }
 
 #[put("/ciphers/move", data = "<data>")]
-fn move_cipher_selected_put(data: JsonUpcase<Value>, headers: Headers, conn: DbConn) -> EmptyResult {
-    move_cipher_selected(data, headers, conn)
+fn move_cipher_selected_put(data: JsonUpcase<Value>, headers: Headers, conn: DbConn, ws: State<WebSocketUsers>) -> EmptyResult {
+    move_cipher_selected(data, headers, conn, ws)
 }
 
 #[post("/ciphers/purge", data = "<data>")]
-fn delete_all(data: JsonUpcase<PasswordData>, headers: Headers, conn: DbConn) -> EmptyResult {
+fn delete_all(data: JsonUpcase<PasswordData>, headers: Headers, conn: DbConn, ws: State<WebSocketUsers>) -> EmptyResult {
     let data: PasswordData = data.into_inner().data;
     let password_hash = data.MasterPasswordHash;
 
@@ -653,6 +657,9 @@ fn delete_all(data: JsonUpcase<PasswordData>, headers: Headers, conn: DbConn) ->
         if cipher.delete(&conn).is_err() {
             err!("Failed deleting cipher")
         }
+        else {
+            ws.send_cipher_update(UpdateType::SyncCipherDelete, &cipher, &cipher.update_users_revision(&conn));
+        }
     }
 
     // Delete folders
@@ -660,13 +667,16 @@ fn delete_all(data: JsonUpcase<PasswordData>, headers: Headers, conn: DbConn) ->
         if f.delete(&conn).is_err() {
             err!("Failed deleting folder")
         }
+        else {
+            ws.send_folder_update(UpdateType::SyncFolderCreate, &f);
+        }
     }
 
     Ok(())
 }
 
-fn _delete_cipher_by_uuid(uuid: &str, headers: &Headers, conn: &DbConn) -> EmptyResult {
-    let cipher = match Cipher::find_by_uuid(uuid, conn) {
+fn _delete_cipher_by_uuid(uuid: &str, headers: &Headers, conn: &DbConn, ws: &State<WebSocketUsers>) -> EmptyResult {
+    let cipher = match Cipher::find_by_uuid(&uuid, &conn) {
         Some(cipher) => cipher,
         None => err!("Cipher doesn't exist"),
     };
@@ -675,13 +685,16 @@ fn _delete_cipher_by_uuid(uuid: &str, headers: &Headers, conn: &DbConn) -> Empty
         err!("Cipher can't be deleted by user")
     }
 
-    match cipher.delete(conn) {
-        Ok(()) => Ok(()),
+    match cipher.delete(&conn) {
+        Ok(()) => {
+            ws.send_cipher_update(UpdateType::SyncCipherDelete, &cipher, &cipher.update_users_revision(&conn));
+            Ok(())
+        }
         Err(_) => err!("Failed deleting cipher")
     }
 }
 
-fn _delete_cipher_attachment_by_id(uuid: &str, attachment_id: &str, headers: &Headers, conn: &DbConn) -> EmptyResult {
+fn _delete_cipher_attachment_by_id(uuid: &str, attachment_id: &str, headers: &Headers, conn: &DbConn, ws: &State<WebSocketUsers>) -> EmptyResult {
     let attachment = match Attachment::find_by_id(&attachment_id, &conn) {
         Some(attachment) => attachment,
         None => err!("Attachment doesn't exist")
@@ -702,7 +715,10 @@ fn _delete_cipher_attachment_by_id(uuid: &str, attachment_id: &str, headers: &He
 
     // Delete attachment
     match attachment.delete(&conn) {
-        Ok(()) => Ok(()),
+        Ok(()) => {
+            ws.send_cipher_update(UpdateType::SyncCipherDelete, &cipher, &cipher.update_users_revision(&conn));
+            Ok(())
+        }
         Err(_) => err!("Deleting attachement failed")
     }
 }

src/api/core/folders.rs

@@ -1,9 +1,10 @@
+use rocket::State;
 use rocket_contrib::{Json, Value};
 
 use db::DbConn;
 use db::models::*;
 
-use api::{JsonResult, EmptyResult, JsonUpcase};
+use api::{JsonResult, EmptyResult, JsonUpcase, WebSocketUsers, UpdateType};
 use auth::Headers;
 
 #[get("/folders")]
@@ -40,23 +41,24 @@ pub struct FolderData {
 }
 
 #[post("/folders", data = "<data>")]
-fn post_folders(data: JsonUpcase<FolderData>, headers: Headers, conn: DbConn) -> JsonResult {
+fn post_folders(data: JsonUpcase<FolderData>, headers: Headers, conn: DbConn, ws: State<WebSocketUsers>) -> JsonResult {
     let data: FolderData = data.into_inner().data;
 
     let mut folder = Folder::new(headers.user.uuid.clone(), data.Name);
 
     folder.save(&conn);
+    ws.send_folder_update(UpdateType::SyncFolderCreate, &folder);
 
     Ok(Json(folder.to_json()))
 }
 
 #[post("/folders/<uuid>", data = "<data>")]
-fn post_folder(uuid: String, data: JsonUpcase<FolderData>, headers: Headers, conn: DbConn) -> JsonResult {
-    put_folder(uuid, data, headers, conn)
+fn post_folder(uuid: String, data: JsonUpcase<FolderData>, headers: Headers, conn: DbConn, ws: State<WebSocketUsers>) -> JsonResult {
+    put_folder(uuid, data, headers, conn, ws)
 }
 
 #[put("/folders/<uuid>", data = "<data>")]
-fn put_folder(uuid: String, data: JsonUpcase<FolderData>, headers: Headers, conn: DbConn) -> JsonResult {
+fn put_folder(uuid: String, data: JsonUpcase<FolderData>, headers: Headers, conn: DbConn, ws: State<WebSocketUsers>) -> JsonResult {
     let data: FolderData = data.into_inner().data;
 
     let mut folder = match Folder::find_by_uuid(&uuid, &conn) {
@@ -71,17 +73,18 @@ fn put_folder(uuid: String, data: JsonUpcase<FolderData>, headers: Headers, conn
     folder.name = data.Name;
 
     folder.save(&conn);
+    ws.send_folder_update(UpdateType::SyncFolderUpdate, &folder);
 
     Ok(Json(folder.to_json()))
 }
 
 #[post("/folders/<uuid>/delete")]
-fn delete_folder_post(uuid: String, headers: Headers, conn: DbConn) -> EmptyResult {
-    delete_folder(uuid, headers, conn)
+fn delete_folder_post(uuid: String, headers: Headers, conn: DbConn, ws: State<WebSocketUsers>) -> EmptyResult {
+    delete_folder(uuid, headers, conn, ws)
 }
 
 #[delete("/folders/<uuid>")]
-fn delete_folder(uuid: String, headers: Headers, conn: DbConn) -> EmptyResult {
+fn delete_folder(uuid: String, headers: Headers, conn: DbConn, ws: State<WebSocketUsers>) -> EmptyResult {
     let folder = match Folder::find_by_uuid(&uuid, &conn) {
         Some(folder) => folder,
         _ => err!("Invalid folder")
@@ -93,7 +96,10 @@ fn delete_folder(uuid: String, headers: Headers, conn: DbConn) -> EmptyResult {
 
     // Delete the actual folder entry
     match folder.delete(&conn) {
-        Ok(()) => Ok(()),
+        Ok(()) => {
+            ws.send_folder_update(UpdateType::SyncFolderDelete, &folder);
+            Ok(())
+        }
         Err(_) => err!("Failed deleting folder")
     }
 }

src/api/mod.rs

@@ -9,6 +9,7 @@ pub use self::icons::routes as icons_routes;
 pub use self::identity::routes as identity_routes;
 pub use self::web::routes as web_routes;
 pub use self::notifications::routes as notifications_routes;
+pub use self::notifications::{start_notification_server, WebSocketUsers, UpdateType};
 
 use rocket::response::status::BadRequest;
 use rocket_contrib::Json;

src/api/notifications.rs

@@ -1,20 +1,24 @@
 use rocket::Route;
 use rocket_contrib::Json;
 
-use db::DbConn;
 use api::JsonResult;
 use auth::Headers;
+use db::DbConn;
 
 pub fn routes() -> Vec<Route> {
-    routes![negotiate]
+    routes![negotiate, websockets_err]
+}
+
+#[get("/hub")]
+fn websockets_err() -> JsonResult {
+    err!("'/notifications/hub' should be proxied towards the websocket server, otherwise notifications will not work. Go to the README for more info.")
 }
 
 #[post("/hub/negotiate")]
 fn negotiate(_headers: Headers, _conn: DbConn) -> JsonResult {
-    use data_encoding::BASE64URL;
     use crypto;
+    use data_encoding::BASE64URL;
 
-    // Store this in db?
     let conn_id = BASE64URL.encode(&crypto::get_random(vec![0u8; 16]));
 
     // TODO: Implement transports
@@ -23,9 +27,338 @@ fn negotiate(_headers: Headers, _conn: DbConn) -> JsonResult {
     Ok(Json(json!({
         "connectionId": conn_id,
         "availableTransports":[
-                // {"transport":"WebSockets", "transferFormats":["Text","Binary"]},
+                {"transport":"WebSockets", "transferFormats":["Text","Binary"]},
                 // {"transport":"ServerSentEvents", "transferFormats":["Text"]},
                 // {"transport":"LongPolling", "transferFormats":["Text","Binary"]}
         ]
     })))
 }
+
+///
+/// Websockets server
+///
+use std::sync::Arc;
+use std::thread;
+
+use ws::{self, util::Token, Factory, Handler, Handshake, Message, Sender, WebSocket};
+
+use chashmap::CHashMap;
+use chrono::NaiveDateTime;
+use serde_json::from_str;
+
+use db::models::{Cipher, Folder, User};
+
+use rmpv::Value;
+
+fn serialize(val: Value) -> Vec<u8> {
+    use rmpv::encode::write_value;
+
+    let mut buf = Vec::new();
+    write_value(&mut buf, &val).expect("Error encoding MsgPack");
+
+    // Add size bytes at the start
+    // Extracted from BinaryMessageFormat.js
+    let mut size = buf.len();
+    let mut len_buf: Vec<u8> = Vec::new();
+
+    loop {
+        let mut size_part = size & 0x7f;
+        size = size >> 7;
+
+        if size > 0 {
+            size_part = size_part | 0x80;
+        }
+
+        len_buf.push(size_part as u8);
+
+        if size <= 0 {
+            break;
+        }
+    }
+
+    len_buf.append(&mut buf);
+    len_buf
+}
+
+fn serialize_date(date: NaiveDateTime) -> Value {
+    let seconds: i64 = date.timestamp();
+    let nanos: i64 = date.timestamp_subsec_nanos() as i64;
+    let timestamp = nanos << 34 | seconds;
+
+    use byteorder::{BigEndian, WriteBytesExt};
+
+    let mut bs = [0u8; 8];
+    bs.as_mut()
+        .write_i64::<BigEndian>(timestamp)
+        .expect("Unable to write");
+
+    // -1 is Timestamp
+    // https://github.com/msgpack/msgpack/blob/master/spec.md#timestamp-extension-type
+    Value::Ext(-1, bs.to_vec())
+}
+
+fn convert_option<T: Into<Value>>(option: Option<T>) -> Value {
+    match option {
+        Some(a) => a.into(),
+        None => Value::Nil,
+    }
+}
+
+// Server WebSocket handler
+pub struct WSHandler {
+    out: Sender,
+    user_uuid: Option<String>,
+    users: WebSocketUsers,
+}
+
+const RECORD_SEPARATOR: u8 = 0x1e;
+const INITIAL_RESPONSE: [u8; 3] = [0x7b, 0x7d, RECORD_SEPARATOR]; // {, }, <RS>
+
+#[derive(Deserialize)]
+struct InitialMessage {
+    protocol: String,
+    version: i32,
+}
+
+const PING_MS: u64 = 15_000;
+const PING: Token = Token(1);
+
+impl Handler for WSHandler {
+    fn on_open(&mut self, hs: Handshake) -> ws::Result<()> {
+        // TODO: Improve this split
+        let path = hs.request.resource();
+        let mut query_split: Vec<_> = path.split("?").nth(1).unwrap().split("&").collect();
+        query_split.sort();
+        let access_token = &query_split[0][13..];
+        let _id = &query_split[1][3..];
+
+        // Validate the user
+        use auth;
+        let claims = match auth::decode_jwt(access_token) {
+            Ok(claims) => claims,
+            Err(_) => {
+                return Err(ws::Error::new(
+                    ws::ErrorKind::Internal,
+                    "Invalid access token provided",
+                ))
+            }
+        };
+
+        // Assign the user to the handler
+        let user_uuid = claims.sub;
+        self.user_uuid = Some(user_uuid.clone());
+
+        // Add the current Sender to the user list
+        let handler_insert = self.out.clone();
+        let handler_update = self.out.clone();
+
+        self.users.map.upsert(
+            user_uuid,
+            || vec![handler_insert],
+            |ref mut v| v.push(handler_update),
+        );
+
+        // Schedule a ping to keep the connection alive
+        self.out.timeout(PING_MS, PING)
+    }
+
+    fn on_message(&mut self, msg: Message) -> ws::Result<()> {
+        println!("Server got message '{}'. ", msg);
+
+        if let Message::Text(text) = msg.clone() {
+            let json = &text[..text.len() - 1]; // Remove last char
+
+            if let Ok(InitialMessage { protocol, version }) = from_str::<InitialMessage>(json) {
+                if &protocol == "messagepack" && version == 1 {
+                    return self.out.send(&INITIAL_RESPONSE[..]); // Respond to initial message
+                }
+            }
+        }
+
+        // If it's not the initial message, just echo the message
+        self.out.send(msg)
+    }
+
+    fn on_timeout(&mut self, event: Token) -> ws::Result<()> {
+        if event == PING {
+            // send ping
+            self.out.send(create_ping())?;
+
+            // reschedule the timeout
+            self.out.timeout(PING_MS, PING)
+        } else {
+            Err(ws::Error::new(
+                ws::ErrorKind::Internal,
+                "Invalid timeout token provided",
+            ))
+        }
+    }
+}
+
+struct WSFactory {
+    pub users: WebSocketUsers,
+}
+
+impl WSFactory {
+    pub fn init() -> Self {
+        WSFactory {
+            users: WebSocketUsers {
+                map: Arc::new(CHashMap::new()),
+            },
+        }
+    }
+}
+
+impl Factory for WSFactory {
+    type Handler = WSHandler;
+
+    fn connection_made(&mut self, out: Sender) -> Self::Handler {
+        println!("WS: Connection made");
+        WSHandler {
+            out,
+            user_uuid: None,
+            users: self.users.clone(),
+        }
+    }
+
+    fn connection_lost(&mut self, handler: Self::Handler) {
+        println!("WS: Connection lost");
+
+        // Remove handler
+        let user_uuid = &handler.user_uuid.unwrap();
+        if let Some(mut user_conn) = self.users.map.get_mut(user_uuid) {
+            user_conn.remove_item(&handler.out);
+        }
+    }
+}
+
+#[derive(Clone)]
+pub struct WebSocketUsers {
+    pub map: Arc<CHashMap<String, Vec<Sender>>>,
+}
+
+impl WebSocketUsers {
+    fn send_update(&self, user_uuid: &String, data: Vec<u8>) -> ws::Result<()> {
+        if let Some(user) = self.map.get(user_uuid) {
+            for sender in user.iter() {
+                sender.send(data.clone())?;
+            }
+        }
+        Ok(())
+    }
+
+    // NOTE: The last modified date needs to be updated before calling these methods
+    pub fn send_user_update(&self, ut: UpdateType, user: &User) {
+        let data = create_update(
+            vec![
+                ("UserId".into(), user.uuid.clone().into()),
+                ("Date".into(), serialize_date(user.updated_at)),
+            ].into(),
+            ut,
+        );
+
+        self.send_update(&user.uuid.clone(), data).ok();
+    }
+
+    pub fn send_folder_update(&self, ut: UpdateType, folder: &Folder) {
+        let data = create_update(
+            vec![
+                ("Id".into(), folder.uuid.clone().into()),
+                ("UserId".into(), folder.user_uuid.clone().into()),
+                ("RevisionDate".into(), serialize_date(folder.updated_at)),
+            ].into(),
+            ut,
+        );
+
+        self.send_update(&folder.user_uuid, data).ok();
+    }
+
+    pub fn send_cipher_update(&self, ut: UpdateType, cipher: &Cipher, user_uuids: &Vec<String>) {
+        let user_uuid = convert_option(cipher.user_uuid.clone());
+        let org_uuid = convert_option(cipher.organization_uuid.clone());
+
+        let data = create_update(
+            vec![
+                ("Id".into(), cipher.uuid.clone().into()),
+                ("UserId".into(), user_uuid),
+                ("OrganizationId".into(), org_uuid),
+                ("CollectionIds".into(), Value::Nil),
+                ("RevisionDate".into(), serialize_date(cipher.updated_at)),
+            ].into(),
+            ut,
+        );
+
+        for uuid in user_uuids {
+            self.send_update(&uuid, data.clone()).ok();
+        }
+    }
+}
+
+/* Message Structure
+[
+    1, // MessageType.Invocation
+    {}, // Headers
+    null, // InvocationId
+    "ReceiveMessage", // Target
+    [ // Arguments
+        {
+            "ContextId": "app_id",
+            "Type": ut as i32,
+            "Payload": {}
+        }
+    ]
+]
+*/
+fn create_update(payload: Vec<(Value, Value)>, ut: UpdateType) -> Vec<u8> {
+    use rmpv::Value as V;
+
+    let value = V::Array(vec![
+        1.into(),
+        V::Array(vec![]),
+        V::Nil,
+        "ReceiveMessage".into(),
+        V::Array(vec![V::Map(vec![
+            ("ContextId".into(), "app_id".into()),
+            ("Type".into(), (ut as i32).into()),
+            ("Payload".into(), payload.into()),
+        ])]),
+    ]);
+
+    serialize(value)
+}
+
+fn create_ping() -> Vec<u8> {
+    serialize(Value::Array(vec![6.into()]))
+}
+
+#[allow(dead_code)]
+pub enum UpdateType {
+    SyncCipherUpdate = 0,
+    SyncCipherCreate = 1,
+    SyncLoginDelete = 2,
+    SyncFolderDelete = 3,
+    SyncCiphers = 4,
+
+    SyncVault = 5,
+    SyncOrgKeys = 6,
+    SyncFolderCreate = 7,
+    SyncFolderUpdate = 8,
+    SyncCipherDelete = 9,
+    SyncSettings = 10,
+
+    LogOut = 11,
+}
+
+pub fn start_notification_server() -> WebSocketUsers {
+    let factory = WSFactory::init();
+    let users = factory.users.clone();
+
+    thread::spawn(move || {
+        WebSocket::new(factory)
+            .unwrap()
+            .listen("0.0.0.0:3012")
+            .unwrap();
+    });
+
+    users
+}

src/db/models/cipher.rs

@@ -130,19 +130,25 @@ impl Cipher {
         json_object
     }
 
-    pub fn update_users_revision(&self, conn: &DbConn) {
+    pub fn update_users_revision(&self, conn: &DbConn) -> Vec<String> {
+        let mut user_uuids = Vec::new();
         match self.user_uuid {
-            Some(ref user_uuid) => User::update_uuid_revision(&user_uuid, conn),
+            Some(ref user_uuid) => {
+                User::update_uuid_revision(&user_uuid, conn);
+                user_uuids.push(user_uuid.clone())
+            },
             None => { // Belongs to Organization, need to update affected users
                 if let Some(ref org_uuid) = self.organization_uuid {
                     UserOrganization::find_by_cipher_and_org(&self.uuid, &org_uuid, conn)
                     .iter()
                     .for_each(|user_org| {
-                        User::update_uuid_revision(&user_org.user_uuid, conn)
+                        User::update_uuid_revision(&user_org.user_uuid, conn);
+                        user_uuids.push(user_org.user_uuid.clone())
                     });
                 }
             }
         };
+        user_uuids
     }
 
     pub fn save(&mut self, conn: &DbConn) -> bool {
@@ -157,7 +163,7 @@ impl Cipher {
         }
     }
 
-    pub fn delete(self, conn: &DbConn) -> QueryResult<()> {
+    pub fn delete(&self, conn: &DbConn) -> QueryResult<()> {
         self.update_users_revision(conn);
 
         FolderCipher::delete_all_by_cipher(&self.uuid, &conn)?;
@@ -166,7 +172,7 @@ impl Cipher {
 
         diesel::delete(
             ciphers::table.filter(
-                ciphers::uuid.eq(self.uuid)
+                ciphers::uuid.eq(&self.uuid)
             )
         ).execute(&**conn).and(Ok(()))
     }

src/db/models/folder.rs

@@ -82,13 +82,13 @@ impl Folder {
         }
     }
 
-    pub fn delete(self, conn: &DbConn) -> QueryResult<()> {
+    pub fn delete(&self, conn: &DbConn) -> QueryResult<()> {
         User::update_uuid_revision(&self.user_uuid, conn);
         FolderCipher::delete_all_by_folder(&self.uuid, &conn)?;
 
         diesel::delete(
             folders::table.filter(
-                folders::uuid.eq(self.uuid)
+                folders::uuid.eq(&self.uuid)
             )
         ).execute(&**conn).and(Ok(()))
     }

src/main.rs

@@ -1,10 +1,13 @@
-#![feature(plugin, custom_derive)]
+#![feature(plugin, custom_derive, vec_remove_item)]
 #![plugin(rocket_codegen)]
 #![allow(proc_macro_derive_resolution_fallback)] // TODO: Remove this when diesel update fixes warnings
 extern crate rocket;
 extern crate rocket_contrib;
 extern crate reqwest;
 extern crate multipart;
+extern crate ws;
+extern crate rmpv;
+extern crate chashmap;
 extern crate serde;
 #[macro_use]
 extern crate serde_derive;
@@ -31,6 +34,7 @@ extern crate lettre;
 extern crate lettre_email;
 extern crate native_tls;
 extern crate fast_chemail;
+extern crate byteorder;
 
 use std::{env, path::Path, process::{exit, Command}};
 use rocket::Rocket;
@@ -52,6 +56,7 @@ fn init_rocket() -> Rocket {
         .mount("/icons", api::icons_routes())
         .mount("/notifications", api::notifications_routes())
         .manage(db::init_pool())
+        .manage(api::start_notification_server())
 }
 
 // Embed the migrations from the migrations folder into the application
@@ -76,7 +81,6 @@ fn main() {
     check_web_vault();  
     migrations::run_migrations();
 
-
     init_rocket().launch();
 }