1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
|
defmodule Chessh.Player do
use Ecto.Schema
import Ecto.Changeset
alias Chessh.{Key, Game}
@derive {Inspect, except: [:password]}
schema "players" do
field(:username, :string)
field(:password, :string, virtual: true)
field(:hashed_password, :string)
field(:authentications, :integer, default: 0)
has_many(:keys, Key)
has_many(:light_games, Game, foreign_key: :light_player_id, references: :id)
has_many(:dark_games, Game, foreign_key: :dark_player_id, references: :id)
timestamps()
end
def authentications_changeset(player, attrs) do
player
|> cast(attrs, [:authentications])
end
def registration_changeset(player, attrs, opts \\ []) do
player
|> cast(attrs, [:username, :password])
|> validate_username()
|> validate_password(opts)
end
def password_changeset(player, attrs, opts \\ []) do
player
|> cast(attrs, [:password])
|> validate_confirmation(:password, message: "does not match password")
|> validate_password(opts)
end
def valid_password?(%Chessh.Player{hashed_password: hashed_password}, password)
when is_binary(hashed_password) and byte_size(password) > 0 do
Bcrypt.verify_pass(password, hashed_password)
end
def valid_password?(_, _) do
Bcrypt.no_user_verify()
false
end
def validate_current_password(changeset, password) do
if valid_password?(changeset.data, password) do
changeset
else
add_error(changeset, :current_password, "is not valid")
end
end
defp validate_username(changeset) do
changeset
|> validate_required([:username])
|> validate_length(:username, min: 2, max: 16)
|> validate_format(:username, ~r/^[a-zA-Z0-9_\-]*$/,
message: "only letters, numbers, underscores, and hyphens allowed"
)
|> unique_constraint(:username)
end
defp validate_password(changeset, opts) do
changeset
|> validate_required([:password])
|> validate_length(:password, min: 8, max: 80)
|> maybe_hash_password(opts)
end
defp maybe_hash_password(changeset, opts) do
hash_password? = Keyword.get(opts, :hash_password, true)
password = get_change(changeset, :password)
if hash_password? && password && changeset.valid? do
changeset
|> put_change(:hashed_password, Bcrypt.hash_pwd_salt(password))
|> delete_change(:password)
else
changeset
end
end
end
|
