implement getSiteUrl

src/server/service/config-manager.js

@@ -68,6 +68,25 @@ class ConfigManager {
     return this.searchOnlyFromEnvVarConfigs(namespace, key);
   }
 
+  /**
+   * get the site url
+   *
+   * If the config for the site url is not set, this returns a message "[The site URL is not set. Please set it!]".
+   *
+   * With version 3.2.3 and below, there is no config for the site URL, so the system always uses auto-generated site URL.
+   * With version 3.2.4 to 3.3.4, the system uses the auto-generated site URL only if the config is not set.
+   * With version 3.3.5 and above, the system use only a value from the config.
+   */
+  getSiteUrl() {
+    const siteUrl = this.getConfig('crowi', 'app:siteUrl');
+    if (siteUrl != null) {
+      return siteUrl;
+    }
+    else {
+      return '[The site URL is not set. Please set it!]';
+    }
+  }
+
   /**
    * update configs in the same namespace
    *