proksi 0.3.31

A batteries-included reverse proxy with automatic HTTPS using Cloudflare Pingora and Let's Encrypt.
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use std::borrow::Cow;

use anyhow::Result;
use async_trait::async_trait;

use pingora::proxy::Session;

use crate::{config::RoutePlugin, proxy_server::https_proxy::RouterContext};

use super::MiddlewarePlugin;

/// A plugin that adds a request ID to the request headers
/// and response headers
pub struct RequestId {}

impl RequestId {
    pub fn new() -> Self {
        Self {}
    }
}

#[async_trait]
impl MiddlewarePlugin for RequestId {
    async fn request_filter(
        &self,
        _: &mut Session,
        ctx: &mut RouterContext,
        _: &RoutePlugin,
    ) -> Result<bool> {
        let request_id = uuid::Uuid::new_v4().to_string();
        ctx.extensions
            .insert(Cow::Borrowed("request_id_header"), request_id);

        Ok(false)
    }

    async fn upstream_request_filter(
        &self,
        _: &mut Session,
        upstream_request: &mut pingora::http::RequestHeader,
        ctx: &mut RouterContext,
    ) -> Result<()> {
        if let Some(request_id) = ctx.extensions.get("request_id_header") {
            upstream_request.insert_header("x-request-id", request_id)?;
        }
        Ok(())
    }

    fn upstream_response_filter(
        &self,
        _: &mut Session,
        upstream_response: &mut pingora::http::ResponseHeader,
        ctx: &mut RouterContext,
    ) -> Result<()> {
        if let Some(request_id) = ctx.extensions.get("request_id_header") {
            upstream_response.insert_header("x-request-id", request_id)?;
        }
        Ok(())
    }

    async fn response_filter(
        &self,
        _: &mut Session,
        ctx: &mut RouterContext,
        _: &RoutePlugin,
    ) -> Result<bool> {
        ctx.extensions.clear();

        Ok(false)
    }
}