Change config to thread-safe system, needed for a future config panel.

Improved some two factor methods.

src/db/mod.rs

@@ -25,13 +25,13 @@ pub mod schema;
 
 /// Initializes a database pool.
 pub fn init_pool() -> Pool {
-    let manager = ConnectionManager::new(&*CONFIG.database_url);
+    let manager = ConnectionManager::new(CONFIG.database_url());
 
     r2d2::Pool::builder().build(manager).expect("Failed to create pool")
 }
 
 pub fn get_connection() -> Result<Connection, ConnectionError> {
-    Connection::establish(&CONFIG.database_url)
+    Connection::establish(&CONFIG.database_url())
 }
 
 /// Attempts to retrieve a single connection from the managed database pool. If

src/db/models/attachment.rs

@@ -28,7 +28,7 @@ impl Attachment {
     }
 
     pub fn get_file_path(&self) -> String {
-        format!("{}/{}/{}", CONFIG.attachments_folder, self.cipher_uuid, self.id)
+        format!("{}/{}/{}", CONFIG.attachments_folder(), self.cipher_uuid, self.id)
     }
 
     pub fn to_json(&self, host: &str) -> Value {
@@ -86,7 +86,7 @@ impl Attachment {
 
     pub fn find_by_id(id: &str, conn: &DbConn) -> Option<Self> {
         let id = id.to_lowercase();
-        
+
         attachments::table
             .filter(attachments::id.eq(id))
             .first::<Self>(&**conn)

src/db/models/user.rs

@@ -56,7 +56,7 @@ impl User {
 
             password_hash: Vec::new(),
             salt: crypto::get_random_64(),
-            password_iterations: CONFIG.password_iterations,
+            password_iterations: CONFIG.password_iterations(),
 
             security_stamp: crate::util::get_uuid(),
 
@@ -242,7 +242,7 @@ impl Invitation {
     }
 
     pub fn take(mail: &str, conn: &DbConn) -> bool {
-        CONFIG.invitations_allowed
+        CONFIG.invitations_allowed()
             && match Self::find_by_mail(mail, &conn) {
                 Some(invitation) => invitation.delete(&conn).is_ok(),
                 None => false,