product-os-server 0.0.55

Product OS : Server provides a full functioning advanced server capable of acting as a web server, command and control distributed network, authentication server, crawling server and more. Fully featured with high level of flexibility.
Documentation 
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//! Command handlers for Product OS Server
//!
//! Provides HTTP endpoint handlers for command-and-control operations.

use std::prelude::v1::*;

use std::sync::Arc;
use parking_lot::Mutex;

use axum::extract::Extension;

#[cfg(feature = "controller")]
use axum_extra::typed_header::TypedHeader;

use axum::Json;
use axum::body::Body;
use axum::http::StatusCode;
use axum::response::{ Response };
use serde::{ Deserialize, Serialize };

#[cfg(feature = "controller")]
use product_os_command_control::{
    ProductOSController,
    authentication::AuthExchangeKeyData,
    authentication::XProductOSVerifyHeader,
    authentication::XProductOSCommandHeader,
    Node,
};

use crate::CONTROLLER_LOCK_TIMEOUT;

#[derive(Debug, Deserialize, Serialize)]
#[serde(rename_all = "camelCase")]
struct StatusResponse {
    status: Status,
    address: String,
    process_id: u32
}

#[derive(Debug, Deserialize, Serialize)]
#[serde(rename_all = "camelCase")]
enum Status {
    Ok,
    Error
}

/// Helper function to build a response
fn build_response(status: StatusCode, body: String) -> Response<Body> {
    Response::builder()
        .status(status)
        .header("content-type", "application/json")
        .body(Body::from(body))
        .unwrap_or_else(|_| {
            let mut resp = Response::new(Body::from("{}"));
            *resp.status_mut() = status;
            resp
        })
}

/// Helper function to handle controller lock with timeout
///
/// This helper acquires a lock on the controller with a timeout, executes the operation,
/// and serializes the result as a JSON response.
///
/// # Arguments
///
/// * `controller_mutex` - The controller mutex to lock
/// * `operation` - The operation to execute on the locked controller
#[cfg(feature = "controller")]
#[allow(dead_code)]
fn with_controller_lock<F, R>(
    controller_mutex: Arc<Mutex<ProductOSController>>,
    operation: F
) -> Response<Body>
where
    F: FnOnce(&mut ProductOSController) -> R,
    R: Serialize,
{
    match controller_mutex.try_lock_for(CONTROLLER_LOCK_TIMEOUT) {
        None => build_response(StatusCode::GATEWAY_TIMEOUT, "{}".to_string()),
        Some(mut controller) => {
            let result = operation(&mut controller);
            let response_body = serde_json::to_string(&result).unwrap_or_else(|_| "{}".to_string());
            build_response(StatusCode::OK, response_body)
        }
    }
}








#[cfg(feature = "controller")]
pub fn command_responder<S>(router: &mut product_os_router::ProductOSRouter<S>)
where
    S: Clone + Send + Sync + 'static
{
    router.add_handler("/command/auth/exchange", product_os_router::Method::POST, exchange_handler);

    router.add_handler("/command/status/alive", product_os_router::Method::POST, status_alive);
    router.add_handler("/command/status/ping", product_os_router::Method::POST, check_handler);
    router.add_handler("/command/status/announce", product_os_router::Method::POST, announce_handler);
}




#[cfg(feature = "controller")]
async fn exchange_handler(Extension(controller_mutex): Extension<Arc<Mutex<ProductOSController>>>,
                          Json(payload): Json<AuthExchangeKeyData>) -> Response<Body> {
    match controller_mutex.try_lock_for(CONTROLLER_LOCK_TIMEOUT) {
        None => build_response(StatusCode::GATEWAY_TIMEOUT, "{}".to_string()),
        Some(mut controller) => {
            let remote_identifier = payload.identifier;
            let remote_session = payload.session;
            let remote_public_key = payload.public_key;

            match controller.get_registry().get_key(remote_identifier.as_str()) {
                None => {
                    let (session, public_key) = controller.create_key_session();
                    controller.generate_key(session.as_str(), remote_public_key.as_slice(), remote_identifier, Some(remote_session.clone()));

                    let response = serde_json::to_string(&AuthExchangeKeyData {
                        identifier: controller.get_registry().get_me().get_identifier(),
                        session: remote_session,
                        public_key: public_key.to_vec()
                    }).unwrap_or_else(|_| "{}".to_string());

                    tracing::info!("Responding to Auth::Exchange request {:?}", response);
                    build_response(StatusCode::OK, response)
                },
                Some(_) => {
                    tracing::info!("Responding to Auth::Exchange request with Conflict status");
                    build_response(StatusCode::CONFLICT, "{}".to_string())
                }
            }
        }
    }
}

#[cfg(feature = "controller")]
async fn status_alive(TypedHeader(x_product_os_command): TypedHeader<XProductOSCommandHeader>,
                      TypedHeader(x_product_os_verify): TypedHeader<XProductOSVerifyHeader>,
                      Extension(controller_mutex): Extension<Arc<Mutex<ProductOSController>>>) -> Response<Body> {
    match controller_mutex.try_lock_for(CONTROLLER_LOCK_TIMEOUT) {
        None => build_response(StatusCode::GATEWAY_TIMEOUT, "{}".to_string()),
        Some(controller) => {
            match controller.authenticate_command_control::<&Node>(None, None, None, Some(x_product_os_command.value().as_str()), Some(x_product_os_verify.value().as_str())) {
                Ok(_) => {
                    tracing::info!("Responding to Status::Alive request");
                    build_response(StatusCode::OK, "{ \"status\": \"ok\" }".to_string())
                },
                Err(e) => {
                    let error = &e.error;
                    tracing::error!("Error from Status::Alive request {:?}", error);
                    build_response(StatusCode::UNAUTHORIZED, serde_json::to_string(&e).unwrap_or_else(|_| "{}".to_string()))
                }
            }
        }
    }
}

#[cfg(feature = "controller")]
async fn check_handler(TypedHeader(x_product_os_command): TypedHeader<XProductOSCommandHeader>,
                       TypedHeader(x_product_os_verify): TypedHeader<XProductOSVerifyHeader>,
                       Extension(controller_mutex): Extension<Arc<Mutex<ProductOSController>>>) -> Response<Body> {
    match controller_mutex.try_lock_for(CONTROLLER_LOCK_TIMEOUT) {
        None => build_response(StatusCode::GATEWAY_TIMEOUT, "{}".to_string()),
        Some(controller) => {
            match controller.authenticate_command_control::<&Node>(None, None, None, Some(x_product_os_command.value().as_str()), Some(x_product_os_verify.value().as_str())) {
                Ok(_) => {
                    let response = serde_json::to_string(&StatusResponse {
                        status: Status::Ok,
                        address: controller.get_registry().get_me().try_get_address().map(|a| a.to_string()).unwrap_or_default(),
                        process_id: controller.get_registry().get_me().get_process_id()
                    }).unwrap_or_else(|_| "{}".to_string());

                    tracing::info!("Responding to Status::Ping request {:?}", response);
                    build_response(StatusCode::OK, response)
                },
                Err(e) => {
                    let error = &e.error;
                    tracing::error!("Error from Status::Ping request {:?}", error);
                    build_response(StatusCode::UNAUTHORIZED, serde_json::to_string(&e).unwrap_or_else(|_| "{}".to_string()))
                }
            }
        }
    }
}

#[cfg(feature = "controller")]
async fn announce_handler(TypedHeader(x_product_os_command): TypedHeader<XProductOSCommandHeader>,
                          TypedHeader(x_product_os_verify): TypedHeader<XProductOSVerifyHeader>,
                          Extension(controller_mutex): Extension<Arc<Mutex<ProductOSController>>>,
                          Json(payload): Json<product_os_command_control::Node>) -> Response<Body> {
    match controller_mutex.try_lock_for(CONTROLLER_LOCK_TIMEOUT) {
        None => build_response(StatusCode::GATEWAY_TIMEOUT, "{}".to_string()),
        Some(mut controller) => {
            match controller.authenticate_command_control::<&Node>(None, Some(&payload), None, Some(x_product_os_command.value().as_str()), Some(x_product_os_verify.value().as_str())) {
                Ok(_) => {
                    let identifier = payload.get_identifier();
                    let node = payload;
                    controller.upsert_node_local(identifier, node);

                    let response = serde_json::to_string(&StatusResponse {
                        status: Status::Ok,
                        address: controller.get_registry().get_me().try_get_address().map(|a| a.to_string()).unwrap_or_default(),
                        process_id: controller.get_registry().get_me().get_process_id()
                    }).unwrap_or_else(|_| "{}".to_string());

                    tracing::info!("Responding to Status::Announce request {:?}", response);
                    build_response(StatusCode::OK, response)
                },
                Err(e) => {
                    let error = &e.error;
                    tracing::error!("Error from Status::Announce request {:?}", error);
                    build_response(StatusCode::UNAUTHORIZED, serde_json::to_string(&e).unwrap_or_else(|_| "{}".to_string()))
                }
            }
        }
    }
}