feat!: [#591] extract new type for password constrains in configuration

From:

```toml
[auth]
email_on_signup = "Optional"
max_password_length = 64
min_password_length = 6
secret_key = "MaxVerstappenWC2021"
```

To:

```toml
[auth]
email_on_signup = "Optional"
secret_key = "MaxVerstappenWC2021"

[auth.password_constraints]
max_password_length = 64
min_password_length = 6
```

src/config/mod.rs

@@ -30,6 +30,7 @@ pub type Tracker = v1::tracker::Tracker;
 pub type Logging = v1::logging::Logging;
 pub type Website = v1::website::Website;
 pub type EmailOnSignup = v1::auth::EmailOnSignup;
+pub type PasswordConstraints = v1::auth::PasswordConstraints;
 
 /// Prefix for env vars that overwrite configuration options.
 const CONFIG_OVERRIDE_PREFIX: &str = "TORRUST_INDEX_CONFIG_OVERRIDE_";
@@ -344,10 +345,12 @@ mod tests {
 
                                 [auth]
                                 email_on_signup = "optional"
-                                min_password_length = 6
-                                max_password_length = 64
                                 secret_key = "MaxVerstappenWC2021"
 
+                                [auth.password_constraints]
+                                min_password_length = 6
+                                max_password_length = 64
+                                
                                 [database]
                                 connect_url = "sqlite://data.db?mode=rwc"
 

src/config/v1/auth.rs

@@ -7,25 +7,21 @@ use serde::{Deserialize, Serialize};
 #[derive(Debug, Clone, Serialize, Deserialize, PartialEq)]
 pub struct Auth {
     /// Whether or not to require an email on signup.
-    #[serde(default = "EmailOnSignup::default")]
+    #[serde(default = "Auth::default_email_on_signup")]
     pub email_on_signup: EmailOnSignup,
-    /// The minimum password length.
-    #[serde(default = "Auth::default_min_password_length")]
-    pub min_password_length: usize,
-    /// The maximum password length.
-    #[serde(default = "Auth::default_max_password_length")]
-    pub max_password_length: usize,
     /// The secret key used to sign JWT tokens.
     #[serde(default = "Auth::default_secret_key")]
     pub secret_key: SecretKey,
+    /// The password constraints
+    #[serde(default = "Auth::default_password_constraints")]
+    pub password_constraints: PasswordConstraints,
 }
 
 impl Default for Auth {
     fn default() -> Self {
         Self {
             email_on_signup: EmailOnSignup::default(),
-            min_password_length: Self::default_min_password_length(),
-            max_password_length: Self::default_max_password_length(),
+            password_constraints: Self::default_password_constraints(),
             secret_key: Self::default_secret_key(),
         }
     }
@@ -36,17 +32,17 @@ impl Auth {
         self.secret_key = SecretKey::new(secret_key);
     }
 
-    fn default_min_password_length() -> usize {
-        6
-    }
-
-    fn default_max_password_length() -> usize {
-        64
+    fn default_email_on_signup() -> EmailOnSignup {
+        EmailOnSignup::default()
     }
 
     fn default_secret_key() -> SecretKey {
         SecretKey::new("MaxVerstappenWC2021")
     }
+
+    fn default_password_constraints() -> PasswordConstraints {
+        PasswordConstraints::default()
+    }
 }
 
 /// Whether the email is required on signup or not.
@@ -119,6 +115,35 @@ impl fmt::Display for SecretKey {
     }
 }
 
+#[derive(Debug, Clone, Serialize, Deserialize, PartialEq)]
+pub struct PasswordConstraints {
+    /// The minimum password length.
+    #[serde(default = "PasswordConstraints::default_min_password_length")]
+    pub min_password_length: usize,
+    /// The maximum password length.
+    #[serde(default = "PasswordConstraints::default_max_password_length")]
+    pub max_password_length: usize,
+}
+
+impl Default for PasswordConstraints {
+    fn default() -> Self {
+        Self {
+            min_password_length: Self::default_min_password_length(),
+            max_password_length: Self::default_max_password_length(),
+        }
+    }
+}
+
+impl PasswordConstraints {
+    fn default_min_password_length() -> usize {
+        6
+    }
+
+    fn default_max_password_length() -> usize {
+        64
+    }
+}
+
 #[cfg(test)]
 mod tests {
     use super::SecretKey;

src/lib.rs

@@ -181,9 +181,11 @@
 //!
 //! [auth]
 //! email_on_signup = "optional"
+//! secret_key = "MaxVerstappenWC2021"
+//!
+//! [auth.password_constraints]
 //! min_password_length = 6
 //! max_password_length = 64
-//! secret_key = "MaxVerstappenWC2021"
 //!
 //! [database]
 //! connect_url = "sqlite://data.db?mode=rwc"

src/services/user.rs

@@ -11,7 +11,7 @@ use pbkdf2::password_hash::rand_core::OsRng;
 use tracing::{debug, info};
 
 use super::authentication::DbUserAuthenticationRepository;
-use crate::config::{Configuration, EmailOnSignup};
+use crate::config::{Configuration, EmailOnSignup, PasswordConstraints};
 use crate::databases::database::{Database, Error};
 use crate::errors::ServiceError;
 use crate::mailer;
@@ -97,11 +97,11 @@ impl RegistrationService {
         }
 
         let password_constraints = PasswordConstraints {
-            min_password_length: settings.auth.min_password_length,
-            max_password_length: settings.auth.max_password_length,
+            min_password_length: settings.auth.password_constraints.min_password_length,
+            max_password_length: settings.auth.password_constraints.max_password_length,
         };
 
-        validate_password_constrains(
+        validate_password_constraints(
             &registration_form.password,
             &registration_form.confirm_password,
             &password_constraints,
@@ -216,11 +216,11 @@ impl ProfileService {
         verify_password(change_password_form.current_password.as_bytes(), &user_authentication)?;
 
         let password_constraints = PasswordConstraints {
-            min_password_length: settings.auth.min_password_length,
-            max_password_length: settings.auth.max_password_length,
+            min_password_length: settings.auth.password_constraints.min_password_length,
+            max_password_length: settings.auth.password_constraints.max_password_length,
         };
 
-        validate_password_constrains(
+        validate_password_constraints(
             &change_password_form.password,
             &change_password_form.confirm_password,
             &password_constraints,
@@ -415,12 +415,7 @@ impl DbBannedUserList {
     }
 }
 
-struct PasswordConstraints {
-    pub min_password_length: usize,
-    pub max_password_length: usize,
-}
-
-fn validate_password_constrains(
+fn validate_password_constraints(
     password: &str,
     confirm_password: &str,
     password_rules: &PasswordConstraints,

src/web/api/client/v1/contexts/settings/mod.rs

@@ -6,8 +6,8 @@ use url::Url;
 use crate::config::v1::tracker::ApiToken;
 use crate::config::{
     Api as DomainApi, Auth as DomainAuth, Database as DomainDatabase, ImageCache as DomainImageCache, Mail as DomainMail,
-    Network as DomainNetwork, Settings as DomainSettings, Tracker as DomainTracker,
-    TrackerStatisticsImporter as DomainTrackerStatisticsImporter, Website as DomainWebsite,
+    Network as DomainNetwork, PasswordConstraints as DomainPasswordConstraints, Settings as DomainSettings,
+    Tracker as DomainTracker, TrackerStatisticsImporter as DomainTrackerStatisticsImporter, Website as DomainWebsite,
 };
 
 #[derive(Deserialize, Serialize, PartialEq, Debug, Clone)]
@@ -46,9 +46,14 @@ pub struct Network {
 #[derive(Deserialize, Serialize, PartialEq, Debug, Clone)]
 pub struct Auth {
     pub email_on_signup: String,
+    pub secret_key: String,
+    pub password_constraints: PasswordConstraints,
+}
+
+#[derive(Deserialize, Serialize, PartialEq, Debug, Clone)]
+pub struct PasswordConstraints {
     pub min_password_length: usize,
     pub max_password_length: usize,
-    pub secret_key: String,
 }
 
 #[derive(Deserialize, Serialize, PartialEq, Debug, Clone)]
@@ -135,9 +140,17 @@ impl From<DomainAuth> for Auth {
     fn from(auth: DomainAuth) -> Self {
         Self {
             email_on_signup: format!("{:?}", auth.email_on_signup),
-            min_password_length: auth.min_password_length,
-            max_password_length: auth.max_password_length,
             secret_key: auth.secret_key.to_string(),
+            password_constraints: auth.password_constraints.into(),
+        }
+    }
+}
+
+impl From<DomainPasswordConstraints> for PasswordConstraints {
+    fn from(password_constraints: DomainPasswordConstraints) -> Self {
+        Self {
+            min_password_length: password_constraints.min_password_length,
+            max_password_length: password_constraints.max_password_length,
         }
     }
 }

src/web/api/server/v1/contexts/user/mod.rs

@@ -45,9 +45,8 @@
 //!
 //! ```toml
 //! [auth]
-//! email_on_signup = "optional"
-//! min_password_length = 6
-//! max_password_length = 64
+//! email_on_signup = "Optional"
+//! secret_key = "MaxVerstappenWC2021"
 //! ```
 //!
 //! Refer to the [`RegistrationForm`](crate::web::api::server::v1::contexts::user::forms::RegistrationForm)

tests/common/contexts/settings/mod.rs

@@ -4,8 +4,8 @@ use serde::{Deserialize, Serialize};
 use torrust_index::config::v1::tracker::ApiToken;
 use torrust_index::config::{
     Api as DomainApi, Auth as DomainAuth, Database as DomainDatabase, ImageCache as DomainImageCache, Logging as DomainLogging,
-    Mail as DomainMail, Network as DomainNetwork, Settings as DomainSettings, Tracker as DomainTracker,
-    TrackerStatisticsImporter as DomainTrackerStatisticsImporter, Website as DomainWebsite,
+    Mail as DomainMail, Network as DomainNetwork, PasswordConstraints as DomainPasswordConstraints, Settings as DomainSettings,
+    Tracker as DomainTracker, TrackerStatisticsImporter as DomainTrackerStatisticsImporter, Website as DomainWebsite,
 };
 use url::Url;
 
@@ -51,9 +51,14 @@ pub struct Network {
 #[derive(Deserialize, Serialize, PartialEq, Debug, Clone)]
 pub struct Auth {
     pub email_on_signup: String,
+    pub secret_key: String,
+    pub password_constraints: PasswordConstraints,
+}
+
+#[derive(Deserialize, Serialize, PartialEq, Debug, Clone)]
+pub struct PasswordConstraints {
     pub min_password_length: usize,
     pub max_password_length: usize,
-    pub secret_key: String,
 }
 
 #[derive(Deserialize, Serialize, PartialEq, Debug, Clone)]
@@ -149,9 +154,17 @@ impl From<DomainAuth> for Auth {
     fn from(auth: DomainAuth) -> Self {
         Self {
             email_on_signup: auth.email_on_signup.to_string(),
-            min_password_length: auth.min_password_length,
-            max_password_length: auth.max_password_length,
             secret_key: auth.secret_key.to_string(),
+            password_constraints: auth.password_constraints.into(),
+        }
+    }
+}
+
+impl From<DomainPasswordConstraints> for PasswordConstraints {
+    fn from(password_constraints: DomainPasswordConstraints) -> Self {
+        Self {
+            min_password_length: password_constraints.min_password_length,
+            max_password_length: password_constraints.max_password_length,
         }
     }
 }