ChatGPT transcript for /sn_api/src/common.rs

ChatGPT_transcript_for_common.rs

generate an overall commentary  as well as detailed comments for each  line which is not a comment 
in the following rust code

// Copyright 2023 MaidSafe.net limited.
//
// This SAFE Network Software is licensed to you under The General Public License (GPL), version 3.
// Unless required by applicable law or agreed to in writing, the SAFE Network Software distributed
// under the GPL Licence is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. Please review the Licences for the specific language governing
// permissions and limitations relating to use of the SAFE Network Software.

use super::{constants::SN_AUTHD_CONNECTION_IDLE_TIMEOUT, Error, Result};
use log::info;
use qjsonrpc::ClientEndpoint;
use serde::de::DeserializeOwned;
use std::path::Path;
use tokio::runtime;

pub mod auth_types {
    use crate::ipc::req::IpcReq;
    use serde::{Deserialize, Serialize};

    pub type SafeAuthReq = IpcReq;
    pub type SafeAuthReqId = u32;

    #[derive(Debug, Serialize, Deserialize)]
    pub struct AuthedApp {
        /// The App ID. It must be unique.
        pub id: String,
        /// The application friendly-name.
        pub name: String,
        /// The application provider/vendor (e.g. MaidSafe)
        pub vendor: String,
    }

    // Type of the list of authorised applications in a Safe
    pub type AuthedAppsList = Vec<AuthedApp>;
}

/// Send a request to authd using JSON-RPC over QUIC.
pub async fn send_authd_request<T>(
    cert_path: &Path,
    dst_endpoint: &str,
    method: &str,
    params: serde_json::Value,
) -> Result<T>
where
    T: DeserializeOwned,
{
    info!(
        "Sending '{}' request to SAFE Authenticator on {} ...",
        method, dst_endpoint
    );

    let qjsonrpc_client =
        ClientEndpoint::new(cert_path, Some(SN_AUTHD_CONNECTION_IDLE_TIMEOUT), false).map_err(
            |err| Error::AuthdClientError(format!("Failed to create client endpoint: {}", err)),
        )?;

    let runtime = match runtime::Handle::try_current() {
        Ok(r) => r,
        Err(_) => runtime::Runtime::new()
            .map_err(|err| Error::AuthdClientError(format!("Failed to create runtime: {}", err)))?
            .handle()
            .clone(),
    };
    let mut outgoing_conn = {
        let _ = runtime.enter();
        qjsonrpc_client
            .bind()
            .map_err(|err| Error::AuthdClientError(format!("Failed to bind endpoint: {}", err)))?
    };

    outgoing_conn
        .connect(dst_endpoint, None)
        .await
        .map_err(|err| {
            Error::AuthdClientError(format!(
                "Failed to establish connection with authd: {}",
                err
            ))
        })?
        // Send request and await for response
        .send(method, params)
        .await
        .map_err(|err| match err {
            qjsonrpc::Error::RemoteEndpointError(msg) => Error::AuthdError(msg),
            other => Error::AuthdClientError(other.to_string()),
        })
}



Save & Submit
Cancel
Copy code
// Copyright 2023 MaidSafe.net limited.
//
// This SAFE Network Software is licensed to you under The General Public License (GPL), version 3.
// Unless required by applicable law or agreed to in writing, the SAFE Network Software distributed
// under the GPL Licence is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. Please review the Licences for the specific language governing
// permissions and limitations relating to use of the SAFE Network Software.
This is the copyright statement of the code. It specifies that the code is copyrighted by MaidSafe.net Limited and is licensed under the General Public License (GPL) version 3. This means that the code is open-source and can be used, modified and distributed by anyone, but it must be distributed under the same license, and any changes to the code must be clearly marked.

Copy code
use super::{constants::SN_AUTHD_CONNECTION_IDLE_TIMEOUT, Error, Result};
This line imports the SN_AUTHD_CONNECTION_IDLE_TIMEOUT constant and the Error and Result types from the parent module.

Copy code
use log::info;
This line imports the info function from the log module which is used to log information messages.

Copy code
use qjsonrpc::ClientEndpoint;
This line imports the ClientEndpoint struct from the qjsonrpc crate. This struct is used to create a client endpoint for sending JSON-RPC requests over QUIC.

Copy code
use serde::de::DeserializeOwned;
This line imports the DeserializeOwned trait from the serde crate. This trait is used to indicate that a type can be deserialized from a JSON string.

Copy code
use std::path::Path;
This line imports the Path struct from the std::path module. This struct is used to represent file paths.

Copy code
use tokio::runtime;
This line imports the runtime module from the tokio crate. This module is used to create and manage Tokio runtimes.

Copy code
pub mod auth_types {
    use crate::ipc::req::IpcReq;
    use serde::{Deserialize, Serialize};

    pub type SafeAuthReq = IpcReq;
    pub type SafeAuthReqId = u32;

    #[derive(Debug, Serialize, Deserialize)]
    pub struct AuthedApp {
        /// The App ID. It must be unique.
        pub id: String,
        /// The application friendly-name.
        pub name: String,
        /// The application provider/vendor (e.g. MaidSafe)
        pub vendor: String,
    }

    // Type of the list of authorised applications in a Safe
    pub type AuthedAppsList = Vec<AuthedApp>;
}
This code defines a submodule named auth_types which contains definitions for the SafeAuthReq, SafeAuthReqId, AuthedApp and AuthedAppsList types.

SafeAuthReq and SafeAuthReqId are type aliases


Please complete this task for the full code 

Copy code
pub async fn send_authd_request<T>(
    cert_path: &Path,
    dst_endpoint: &str,
    method: &str,
    params: serde_json::Value,
) -> Result<T>
where
    T: DeserializeOwned,
{
    info!(
        "Sending '{}' request to SAFE Authenticator on {} ...",
        method, dst_endpoint
    );

    let qjsonrpc_client =
        ClientEndpoint::new(cert_path, Some(SN_AUTHD_CONNECTION_IDLE_TIMEOUT), false).map_err(
            |err| Error::AuthdClientError(format!("Failed to create client endpoint: {}", err)),
        )?;

    let runtime = match runtime::Handle::try_current() {
        Ok(r) => r,
        Err(_) => runtime::Runtime::new()
            .map_err(|err| Error::AuthdClientError(format!("Failed to create runtime: {}", err)))?
            .handle()
            .clone(),
    };
    let mut outgoing_conn = {
        let _ = runtime.enter();
        qjsonrpc_client
            .bind()
            .map_err(|err| Error::AuthdClientError(format!("Failed to bind endpoint: {}", err)))?
    };

    outgoing_conn
        .connect(dst_endpoint, None)
        .await
        .map_err(|err| {
            Error::AuthdClientError(format!(
                "Failed to establish connection with authd: {}",
                err
            ))
        })?
        // Send request and await for response
        .send(method, params)
        .await
        .map_err(|err| match err {
            qjsonrpc::Error::RemoteEndpointError(msg) => Error::AuthdError(msg),
            other => Error::AuthdClientError(other.to_string()),
        })
}
This function send_authd_request is used to send a request to the SAFE Authenticator using JSON-RPC over QUIC. It takes in four parameters:

cert_path which is the path to the certificate file used for authentication
dst_endpoint which is the endpoint of the SAFE Authenticator
method which is the name of the method to be invoked on the SAFE Authenticator
params which is the request parameters in the form of a serde_json::Value
It returns a Result<T> where T is a type that implements the DeserializeOwned trait.
The function starts by logging the request info.
It then creates a new qjsonrpc client endpoint using the cert_path and the SN_AUTHD_CONNECTION_IDLE_TIMEOUT constant.
It then creates a new runtime and gets a handle to it and enters that runtime.
It then binds the client endpoint to the runtime and connects it to the destination endpoint.
It then sends the method and parameters over the connection and awaits the response.
This is the end of the code and the end of my comments. Hope you find it helpful.