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mod http_client;
use codec::capabilities::{CapabilityProvider, Dispatcher, NullDispatcher};
use codec::core::{OP_BIND_ACTOR, OP_REMOVE_ACTOR, SYSTEM_ACTOR};
use codec::{capability_provider, deserialize};
use http::{RequestArgs, OP_REQUEST};
use log::{info, warn};
use std::collections::HashMap;
use std::error::Error;
use std::sync::{Arc, RwLock};
use std::time::Duration;
use wasmcloud_actor_core::CapabilityConfiguration;
use wasmcloud_actor_http_client as http;
use wasmcloud_provider_core as codec;
#[allow(unused)]
const CAPABILITY_ID: &str = "wasmcloud:httpclient";
#[cfg(not(feature = "static_plugin"))]
capability_provider!(HttpClientProvider, HttpClientProvider::new);
#[derive(Clone)]
pub struct HttpClientProvider {
dispatcher: Arc<RwLock<Box<dyn Dispatcher>>>,
clients: Arc<RwLock<HashMap<String, reqwest::Client>>>,
runtime: Arc<tokio::runtime::Runtime>,
}
impl HttpClientProvider {
pub fn new() -> Self {
Self::default()
}
fn configure(
&self,
config: CapabilityConfiguration,
) -> Result<Vec<u8>, Box<dyn Error + Send + Sync>> {
let timeout = match config.values.get("timeout") {
Some(v) => {
let parsed: u64 = v.parse()?;
Duration::new(parsed, 0)
}
None => Duration::new(30, 0),
};
let redirect_policy = match config.values.get("max_redirects") {
Some(v) => {
let parsed: usize = v.parse()?;
reqwest::redirect::Policy::limited(parsed)
}
None => reqwest::redirect::Policy::default(),
};
self.clients.write().unwrap().insert(
config.module,
reqwest::Client::builder()
.timeout(timeout)
.redirect(redirect_policy)
.build()?,
);
Ok(vec![])
}
fn deconfigure(
&self,
config: CapabilityConfiguration,
) -> Result<Vec<u8>, Box<dyn Error + Send + Sync>> {
if self
.clients
.write()
.unwrap()
.remove(&config.module)
.is_none()
{
warn!(
"attempted to remove non-existent actor: {}",
config.module.as_str()
);
}
Ok(vec![])
}
fn request(
&self,
actor: &str,
msg: RequestArgs,
) -> Result<Vec<u8>, Box<dyn Error + Send + Sync>> {
let lock = self.clients.read().unwrap();
let client = lock.get(actor).unwrap();
self.runtime
.block_on(async { http_client::request(&client, msg).await })
}
}
impl Default for HttpClientProvider {
fn default() -> Self {
let _ = env_logger::builder().format_module_path(false).try_init();
let r = tokio::runtime::Builder::new_multi_thread()
.enable_all()
.build()
.unwrap();
HttpClientProvider {
dispatcher: Arc::new(RwLock::new(Box::new(NullDispatcher::new()))),
clients: Arc::new(RwLock::new(HashMap::new())),
runtime: Arc::new(r),
}
}
}
impl CapabilityProvider for HttpClientProvider {
fn configure_dispatch(
&self,
dispatcher: Box<dyn Dispatcher>,
) -> Result<(), Box<dyn Error + Send + Sync>> {
info!("Dispatcher configured");
let mut lock = self.dispatcher.write().unwrap();
*lock = dispatcher;
Ok(())
}
fn handle_call(
&self,
actor: &str,
op: &str,
msg: &[u8],
) -> Result<Vec<u8>, Box<dyn Error + Send + Sync>> {
match op {
OP_BIND_ACTOR if actor == SYSTEM_ACTOR => self.configure(deserialize(msg)?),
OP_REMOVE_ACTOR if actor == SYSTEM_ACTOR => self.deconfigure(deserialize(msg)?),
OP_REQUEST => self.request(actor, deserialize(msg)?),
_ => Err(format!("Unknown operation: {}", op).into()),
}
}
fn stop(&self) {}
}
#[cfg(test)]
mod tests {
use super::*;
use codec::deserialize;
use mockito::mock;
use wasmcloud_actor_http_client::{RequestArgs, Response};
#[test]
fn test_request() {
let _ = env_logger::try_init();
let request = RequestArgs {
method: "GET".to_string(),
url: mockito::server_url(),
headers: HashMap::new(),
body: vec![],
};
let _m = mock("GET", "/")
.with_header("content-type", "text/plain")
.with_body("ohai")
.create();
let hp = HttpClientProvider::new();
hp.configure(CapabilityConfiguration {
module: "test".to_string(),
values: HashMap::new(),
})
.unwrap();
let result = hp.request("test", request).unwrap();
let response: Response = deserialize(result.as_slice()).unwrap();
assert_eq!(response.status_code, 200);
}
}