add support for ldap

plume-models/src/config.rs

@@ -20,6 +20,7 @@ pub struct Config {
     pub logo: LogoConfig,
     pub default_theme: String,
     pub media_directory: String,
+    pub ldap: Option<LdapConfig>,
 }
 
 #[derive(Debug, Clone)]
@@ -240,6 +241,40 @@ impl SearchTokenizerConfig {
     }
 }
 
+pub struct LdapConfig {
+    pub addr: String,
+    pub base_dn: String,
+    pub tls: bool,
+    pub user_name_attr: String,
+    pub mail_attr: String,
+}
+
+fn get_ldap_config() -> Option<LdapConfig> {
+    let addr = var("LDAP_ADDR").ok();
+    let base_dn = var("LDAP_BASE_DN").ok();
+    if addr.is_some() && base_dn.is_some() {
+        let tls = var("LDAP_TLS").unwrap_or_else(|_| "false".to_owned());
+        let tls = match tls.as_ref() {
+            "1" | "true"  | "TRUE"  => true,
+            "0" | "false" | "FALSE" => false,
+            _ => panic!("Invalid LDAP configuration : tls")
+        };
+        let user_name_attr = var("LDAP_USER_NAME_ATTR").unwrap_or_else(|_| "cn".to_owned());
+        let mail_attr = var("LDAP_USER_MAIL_ATTR").unwrap_or_else(|_| "mail".to_owned());
+        Some(LdapConfig {
+            addr: addr.unwrap(),
+            base_dn: base_dn.unwrap(),
+            tls,
+            user_name_attr,
+            mail_attr,
+        })
+    } else if addr.is_some() && base_dn.is_some() {
+        panic!("Invalid LDAP configuration : both LDAP_ADDR and LDAP_BASE_DN must be set")
+    } else {
+        None
+    }
+}
+
 lazy_static! {
     pub static ref CONFIG: Config = Config {
         base_url: var("BASE_URL").unwrap_or_else(|_| format!(
@@ -267,5 +302,6 @@ lazy_static! {
         default_theme: var("DEFAULT_THEME").unwrap_or_else(|_| "default-light".to_owned()),
         media_directory: var("MEDIA_UPLOAD_DIRECTORY")
             .unwrap_or_else(|_| "static/media".to_owned()),
+        ldap: get_ldap_config(),
     };
 }