PLT-1465 Added password requirements (#3489)

* Added password requirements

* added tweaks

* fixed error code

* removed http.StatusNotAcceptable

model/config.go

@@ -19,6 +19,9 @@ const (
 	DATABASE_DRIVER_MYSQL    = "mysql"
 	DATABASE_DRIVER_POSTGRES = "postgres"
 
+	PASSWORD_MAXIMUM_LENGTH = 64
+	PASSWORD_MINIMUM_LENGTH = 5
+
 	SERVICE_GITLAB = "gitlab"
 	SERVICE_GOOGLE = "google"
 
@@ -102,6 +105,14 @@ type LogSettings struct {
 	EnableWebhookDebugging bool
 }
 
+type PasswordSettings struct {
+	MinimumLength *int
+	Lowercase     *bool
+	Number        *bool
+	Uppercase     *bool
+	Symbol        *bool
+}
+
 type FileSettings struct {
 	MaxFileSize                *int64
 	DriverName                 string
@@ -259,6 +270,7 @@ type Config struct {
 	TeamSettings         TeamSettings
 	SqlSettings          SqlSettings
 	LogSettings          LogSettings
+	PasswordSettings     PasswordSettings
 	FileSettings         FileSettings
 	EmailSettings        EmailSettings
 	RateLimitSettings    RateLimitSettings
@@ -356,6 +368,31 @@ func (o *Config) SetDefaults() {
 		*o.ServiceSettings.EnableMultifactorAuthentication = false
 	}
 
+	if o.PasswordSettings.MinimumLength == nil {
+		o.PasswordSettings.MinimumLength = new(int)
+		*o.PasswordSettings.MinimumLength = PASSWORD_MINIMUM_LENGTH
+	}
+
+	if o.PasswordSettings.Lowercase == nil {
+		o.PasswordSettings.Lowercase = new(bool)
+		*o.PasswordSettings.Lowercase = false
+	}
+
+	if o.PasswordSettings.Number == nil {
+		o.PasswordSettings.Number = new(bool)
+		*o.PasswordSettings.Number = false
+	}
+
+	if o.PasswordSettings.Uppercase == nil {
+		o.PasswordSettings.Uppercase = new(bool)
+		*o.PasswordSettings.Uppercase = false
+	}
+
+	if o.PasswordSettings.Symbol == nil {
+		o.PasswordSettings.Symbol = new(bool)
+		*o.PasswordSettings.Symbol = false
+	}
+
 	if o.TeamSettings.RestrictTeamNames == nil {
 		o.TeamSettings.RestrictTeamNames = new(bool)
 		*o.TeamSettings.RestrictTeamNames = true
@@ -919,6 +956,10 @@ func (o *Config) IsValid() *AppError {
 		}
 	}
 
+	if *o.PasswordSettings.MinimumLength < PASSWORD_MINIMUM_LENGTH || *o.PasswordSettings.MinimumLength > PASSWORD_MAXIMUM_LENGTH {
+		return NewLocAppError("Config.IsValid", "model.config.is_valid.password_length.app_error", map[string]interface{}{"MinLength": PASSWORD_MINIMUM_LENGTH, "MaxLength": PASSWORD_MAXIMUM_LENGTH}, "")
+	}
+
 	return nil
 }