Enhance admin commands parsing

Cargo.lock

@@ -507,6 +507,7 @@ dependencies = [
  "serde_yaml",
  "sha-1",
  "sha2",
+ "shell-words",
  "thiserror 2.0.12",
  "thread_local",
  "threadpool",
@@ -3009,6 +3010,12 @@ dependencies = [
  "lazy_static",
 ]
 
+[[package]]
+name = "shell-words"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "24188a676b6ae68c3b2cb3a01be17fbf7240ce009799bb56d5b1409051e78fde"
+
 [[package]]
 name = "shlex"
 version = "1.3.0"

Cargo.toml

@@ -138,6 +138,7 @@ clap = { version = "4", default-features = false, features = [
   "usage",
 ] }
 humantime = "2"
+shell-words = "1.1.0"
 
 futures-util = { version = "0.3", default-features = false }
 # Used for reading the configuration from conduit.toml & environment variables

src/service/admin/mod.rs

@@ -539,23 +539,26 @@ impl Service {
     // Parse chat messages from the admin room into an AdminCommand object
     fn parse_admin_command(&self, command_line: &str) -> std::result::Result<AdminCommand, String> {
         // Note: argv[0] is `@conduit:servername:`, which is treated as the main command
-        let mut argv: Vec<_> = command_line.split_whitespace().collect();
+        let mut argv = match shell_words::split(command_line) {
+            Ok(args) => args,
+            Err(e) => return Err(format!("Failed to parse admin command: {e}")),
+        };
 
         // Replace `help command` with `command --help`
         // Clap has a help subcommand, but it omits the long help description.
         if argv.len() > 1 && argv[1] == "help" {
             argv.remove(1);
-            argv.push("--help");
+            argv.push("--help".to_owned());
         }
 
         // Backwards compatibility with `register_appservice`-style commands
-        let command_with_dashes;
-        if argv.len() > 1 && argv[1].contains('_') {
-            command_with_dashes = argv[1].replace('_', "-");
-            argv[1] = &command_with_dashes;
+        if let Some(command) = argv.get_mut(1) {
+            if command.contains('_') {
+                *command = command.replace('_', "-");
+            }
         }
 
-        AdminCommand::try_parse_from(argv).map_err(|error| error.to_string())
+        AdminCommand::try_parse_from(&argv).map_err(|error| error.to_string())
     }
 
     async fn process_admin_command(