+ server.run().await
+}
+
+fn process_args(key: &str) -> bool {
+ fn print_usage() {
+ println!("Usage:");
+ println!(" {} [--help] [--encrypt <plain-text>|--decrypt <cipher-text>]", get_exe_name());
+ }
+
+ let args: Vec<String> = args().collect();
+
+ if args.iter().any(|arg| arg == "--help") {
+ print_usage();
+ return true
+ } else if let Some((position_arg_encrypt, _)) = args.iter().find_position(|arg| arg == &"--encrypt") {
+ match args.get(position_arg_encrypt + 1) {
+ Some(mess_to_encrypt) => {
+ match crypto::encrypt(&key, mess_to_encrypt) {
+ Ok(encrypted_mess) => {
+ let encrypted_mess_encoded = percent_encoding::utf8_percent_encode(&encrypted_mess, percent_encoding::NON_ALPHANUMERIC).to_string();
+ println!("Encrypted message percent-encoded: {}", encrypted_mess_encoded); },
+ Err(error) =>
+ println!("Unable to encrypt: {:?}", error)
+ }
+ }
+ None => print_usage()
+ }
+
+ return true
+ } else if let Some((position_arg_decrypt, _)) = args.iter().find_position(|arg| arg == &"--decrypt") {
+ match args.get(position_arg_decrypt + 1) {
+ Some(cipher_text) => {
+ let cipher_text_decoded = percent_encoding::percent_decode(cipher_text.as_bytes()).decode_utf8().expect("Unable to decode encoded cipher text");
+ match crypto::decrypt(&key, &cipher_text_decoded) {
+ Ok(plain_text) =>
+ println!("Decrypted message: {}", plain_text),
+ Err(error) =>
+ println!("Unable to decrypt: {:?}", error)
+ }
+ }
+ None => print_usage()
+ }
+
+ return true
+ }
+
+ false