/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at
http://mozilla.org/MPL/2.0/. */
mod commands;
use commands::ResultCode;
use std::io::Error;
use std::io::ErrorKind;
fn main() -> Result<(), Error> {
// The general structure of these functions is to print error cases to
// stdout so that the extension can read them and then do error-handling
// on that end.
let message_length: u32 =
commands::read_message_length(std::io::stdin()).or_else(|_| -> Result<u32, _> {
commands::generate_response("Failed to read message length", ResultCode::Error.into()
)
.expect("JSON error");
return Err(Error::new(
ErrorKind::InvalidInput,
"Failed to read message length",
));
})?;
let message: String = commands::read_message_string(std::io::stdin(), message_length).or_else(
|_| -> Result<String, _> {
commands::generate_response("Failed to read message", ResultCode::Error.into())
.expect("JSON error");
return Err(Error::new(
ErrorKind::InvalidInput,
"Failed to read message",
));
},
)?;
// Deserialize the message with the following expected format
let native_messaging_json: commands::FirefoxCommand =
serde_json::from_str(&message).or_else(|_| -> Result<commands::FirefoxCommand, _> {
commands::generate_response(
"Failed to deserialize message JSON",
ResultCode::Error.into(),
)
.expect("JSON error");
return Err(Error::new(
ErrorKind::InvalidInput,
"Failed to deserialize message JSON",
));
})?;
commands::process_command(&native_messaging_json).or_else(|e| -> Result<bool, _> {
commands::generate_response(
format!("Failed to process command: {}", e).as_str(),
ResultCode::Error.into(),
)
.expect("JSON error");
return Err(Error::new(
ErrorKind::InvalidInput,
"Failed to process command",
));
})?;
Ok(())
}
