Store hashed passwords (#7)

Use if let instead of unwrap

Default to invalid password if could not calculate

Move hash password methdo and return Result

Rename get_password method

Default to empty password when no pwd is received

Store hashed passwords

Store passwords hashed with Argon2 and verify password with that stored
hash.

Co-authored-by: Guillem Nieto <gnieto.talo@gmail.com>

Cargo.lock

@@ -155,6 +155,7 @@ dependencies = [
  "ruma-federation-api",
  "ruma-identifiers",
  "ruma-signatures",
+ "rust-argon2 0.8.2",
  "serde",
  "serde_json",
  "sled",
@@ -926,7 +927,7 @@ checksum = "09b23093265f8d200fa7b4c2c76297f47e681c655f6f1285a8780d6a022f7431"
 dependencies = [
  "getrandom",
  "redox_syscall",
- "rust-argon2",
+ "rust-argon2 0.7.0",
 ]
 
 [[package]]
@@ -1136,6 +1137,18 @@ dependencies = [
  "crossbeam-utils",
 ]
 
+[[package]]
+name = "rust-argon2"
+version = "0.8.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9dab61250775933275e84053ac235621dfb739556d5c54a2f2e9313b7cf43a19"
+dependencies = [
+ "base64 0.12.0",
+ "blake2b_simd",
+ "constant_time_eq",
+ "crossbeam-utils",
+]
+
 [[package]]
 name = "rustls"
 version = "0.16.0"