Implement poor man's invitation via Organization invitation

README.md

@@ -23,6 +23,7 @@ _*Note, that this project is not associated with the [Bitwarden](https://bitward
   - [Updating the bitwarden image](#updating-the-bitwarden-image)
 - [Configuring bitwarden service](#configuring-bitwarden-service)
   - [Disable registration of new users](#disable-registration-of-new-users)
+  - [Disable invitations](#disable-invitations)
   - [Enabling HTTPS](#enabling-https)
   - [Enabling U2F authentication](#enabling-u2f-authentication)
   - [Changing persistent data location](#changing-persistent-data-location)
@@ -136,6 +137,20 @@ docker run -d --name bitwarden \
   -p 80:80 \
   mprasil/bitwarden:latest
 ```
+Note: While users can't register on their own, they can still be invited by already registered users. Read bellow if you also want to disable that.
+
+### Disable invitations
+
+Even when registration is disabled, organization administrators or owners can invite users to join organization. This won't send email invitation to the users, but after they are invited, they can register with the invited email even if `SIGNUPS_ALLOWED` is actually set to `false`. You can disable this functionality completely by setting `INVITATIONS_ALLOWED` env variable to `false`:
+
+```sh
+docker run -d --name bitwarden \
+  -e SIGNUPS_ALLOWED=false \
+  -e INVITATIONS_ALLOWED=false \
+  -v /bw-data/:/data/ \
+  -p 80:80 \
+  mprasil/bitwarden:latest
+```
 
 ### Enabling HTTPS
 To enable HTTPS, you need to configure the `ROCKET_TLS`.
@@ -365,7 +380,7 @@ We use upstream Vault interface directly without any (significant) changes, this
 
 ### Inviting users into organization
 
-The users must already be registered on your server to invite them, because we can't send the invitation via email. The invited users won't get the invitation email, instead they will appear in the interface as if they already accepted the invitation. Organization admin then just needs to confirm them to be proper Organization members and to give them access to the shared secrets.
+If you have [invitations disabled](#disable-invitations), the users must already be registered on your server to invite them. The invited users won't get the invitation email, instead they will appear in the interface as if they already accepted the invitation. (if the user has already registered) Organization admin then just needs to confirm them to be proper Organization members and to give them access to the shared secrets.
 
 ### Running on unencrypted connection
 

migrations/2018-09-10-111213_add_invites/down.sql

@@ -0,0 +1 @@
+DROP TABLE invitations;

migrations/2018-09-10-111213_add_invites/up.sql

@@ -0,0 +1,3 @@
+CREATE TABLE invitations (
+    email   TEXT NOT NULL PRIMARY KEY
+);

src/api/core/accounts.rs

@@ -30,15 +30,33 @@ struct KeysData {
 fn register(data: JsonUpcase<RegisterData>, conn: DbConn) -> EmptyResult {
     let data: RegisterData = data.into_inner().data;
 
-    if !CONFIG.signups_allowed {
-        err!("Signups not allowed")
-    }
 
-    if User::find_by_mail(&data.Email, &conn).is_some() {
-        err!("Email already exists")
+    let mut user = match User::find_by_mail(&data.Email, &conn) {
+        Some(mut user) => {
+            if Invitation::take(&data.Email, &conn) {
+                for mut user_org in UserOrganization::find_invited_by_user(&user.uuid, &conn).iter_mut() {
+                    user_org.status = UserOrgStatus::Accepted as i32;
+                    user_org.save(&conn);
+                };
+                user.set_password(&data.MasterPasswordHash);
+                user.key = data.Key;
+                user
+            } else {
+                if CONFIG.signups_allowed {
+                    err!("Account with this email already exists")
+                } else {
+                    err!("Registration not allowed")
                 }
-
-    let mut user = User::new(data.Email, data.Key, data.MasterPasswordHash);
+            }
+        },
+        None => {
+            if CONFIG.signups_allowed || Invitation::take(&data.Email, &conn) {
+                User::new(data.Email, data.Key, data.MasterPasswordHash)
+            } else {
+                err!("Registration not allowed")
+            }
+        }
+    };
 
     // Add extra fields if present
     if let Some(name) = data.Name {

src/api/core/organizations.rs

@@ -1,7 +1,7 @@
 #![allow(unused_imports)]
 
 use rocket_contrib::{Json, Value};
-
+use CONFIG;
 use db::DbConn;
 use db::models::*;
 
@@ -373,18 +373,40 @@ fn send_invite(org_id: String, data: JsonUpcase<InviteData>, headers: AdminHeade
         err!("Only Owners can invite Admins or Owners")
     }
 
-    for user_opt in data.Emails.iter().map(|email| User::find_by_mail(email, &conn)) {
-        match user_opt {
-            None => err!("User email does not exist"),
-            Some(user) => {
-                if UserOrganization::find_by_user_and_org(&user.uuid, &org_id, &conn).is_some() {
-                    err!("User already in organization")
+    for email in data.Emails.iter() {
+        let mut user_org_status = UserOrgStatus::Accepted as i32;
+        let user = match User::find_by_mail(&email, &conn) {
+            None => if CONFIG.invitations_allowed { // Invite user if that's enabled
+                let mut invitation = Invitation::new(email.clone());
+                match invitation.save(&conn) {
+                    Ok(()) => {
+                        let mut user = User::new_invited(email.clone());
+                        if user.save(&conn) {
+                            user_org_status = UserOrgStatus::Invited as i32;
+                            user
+                        } else {
+                            err!("Failed to create placeholder for invited user")
                         }
+                    }
+                    Err(_) => err!(format!("Failed to invite: {}", email))
+                }
+                
+            } else {
+                err!(format!("User email does not exist: {}", email))
+            },
+            Some(user) => if UserOrganization::find_by_user_and_org(&user.uuid, &org_id, &conn).is_some() {
+                err!(format!("User already in organization: {}", email))
+            } else {
+                user
+            }
+
+        };
 
         let mut new_user = UserOrganization::new(user.uuid.clone(), org_id.clone());
         let access_all = data.AccessAll.unwrap_or(false);
         new_user.access_all = access_all;
         new_user.type_ = new_type;
+        new_user.status = user_org_status;
 
         // If no accessAll, add the collections received
         if !access_all {
@@ -402,8 +424,6 @@ fn send_invite(org_id: String, data: JsonUpcase<InviteData>, headers: AdminHeade
 
         new_user.save(&conn);
     }
-        }
-    }
 
     Ok(())
 }

src/db/models/mod.rs

@@ -12,7 +12,7 @@ pub use self::attachment::Attachment;
 pub use self::cipher::Cipher;
 pub use self::device::Device;
 pub use self::folder::{Folder, FolderCipher};
-pub use self::user::User;
+pub use self::user::{User, Invitation};
 pub use self::organization::Organization;
 pub use self::organization::{UserOrganization, UserOrgStatus, UserOrgType};
 pub use self::collection::{Collection, CollectionUser, CollectionCipher};

src/db/models/organization.rs

@@ -27,7 +27,7 @@ pub struct UserOrganization {
 }
 
 pub enum UserOrgStatus {
-    _Invited = 0, // Unused, users are accepted automatically
+    Invited = 0,
     Accepted = 1,
     Confirmed = 2,
 }
@@ -284,6 +284,13 @@ impl UserOrganization {
             .load::<Self>(&**conn).unwrap_or(vec![])
     }
 
+    pub fn find_invited_by_user(user_uuid: &str, conn: &DbConn) -> Vec<Self> {
+        users_organizations::table
+            .filter(users_organizations::user_uuid.eq(user_uuid))
+            .filter(users_organizations::status.eq(UserOrgStatus::Invited as i32))
+            .load::<Self>(&**conn).unwrap_or(vec![])
+    }
+
     pub fn find_by_org(org_uuid: &str, conn: &DbConn) -> Vec<Self> {
         users_organizations::table
             .filter(users_organizations::org_uuid.eq(org_uuid))

src/db/models/user.rs

@@ -73,6 +73,10 @@ impl User {
         }
     }
 
+    pub fn new_invited(mail: String) -> Self {
+        Self::new(mail,"".to_string(),"".to_string())
+    }
+
     pub fn check_valid_password(&self, password: &str) -> bool {
         crypto::verify_password_hash(password.as_bytes(),
                                      &self.salt,
@@ -103,7 +107,7 @@ impl User {
 use diesel;
 use diesel::prelude::*;
 use db::DbConn;
-use db::schema::users;
+use db::schema::{users, invitations};
 
 /// Database methods
 impl User {
@@ -186,3 +190,47 @@ impl User {
             .first::<Self>(&**conn).ok()
     }
 }
+
+#[derive(Debug, Identifiable, Queryable, Insertable)]
+#[table_name = "invitations"]
+#[primary_key(email)]
+pub struct Invitation {
+    pub email: String,
+}
+
+impl Invitation {
+    pub fn new(email: String) -> Self {
+        Self {
+            email
+        }
+    }
+
+    pub fn save(&mut self, conn: &DbConn) -> QueryResult<()> {
+        diesel::replace_into(invitations::table)
+        .values(&*self)
+        .execute(&**conn)
+        .and(Ok(()))
+    }
+
+    pub fn delete(self, conn: &DbConn) -> QueryResult<()> {
+        diesel::delete(invitations::table.filter(
+        invitations::email.eq(self.email)))
+        .execute(&**conn)
+        .and(Ok(()))
+    }
+
+    pub fn find_by_mail(mail: &str, conn: &DbConn) -> Option<Self> {
+        let lower_mail = mail.to_lowercase();
+        invitations::table
+            .filter(invitations::email.eq(lower_mail))
+            .first::<Self>(&**conn).ok()
+    }
+
+    pub fn take(mail: &str, conn: &DbConn) -> bool {
+        CONFIG.invitations_allowed &&
+        match Self::find_by_mail(mail, &conn) {
+            Some(invitation) => invitation.delete(&conn).is_ok(),
+            None => false
+        }
+    }
+}

src/db/schema.rs

@@ -113,6 +113,12 @@ table! {
     }
 }
 
+table! {
+    invitations (email) {
+        email -> Text,
+    }
+}
+
 table! {
     users_collections (user_uuid, collection_uuid) {
         user_uuid -> Text,

src/main.rs

@@ -170,6 +170,7 @@ pub struct Config {
 
     local_icon_extractor: bool,
     signups_allowed: bool,
+    invitations_allowed: bool,
     password_iterations: i32,
     show_password_hint: bool,
     domain: String,
@@ -199,6 +200,7 @@ impl Config {
 
             local_icon_extractor: util::parse_option_string(env::var("LOCAL_ICON_EXTRACTOR").ok()).unwrap_or(false),
             signups_allowed: util::parse_option_string(env::var("SIGNUPS_ALLOWED").ok()).unwrap_or(true),
+            invitations_allowed: util::parse_option_string(env::var("INVITATIONS_ALLOWED").ok()).unwrap_or(true),
             password_iterations: util::parse_option_string(env::var("PASSWORD_ITERATIONS").ok()).unwrap_or(100_000),
             show_password_hint: util::parse_option_string(env::var("SHOW_PASSWORD_HINT").ok()).unwrap_or(true),