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use std::cell::RefCell;
use std::fmt;
use std::rc::Rc;
use std::time::Duration;
use actix_http::client::{Connect, ConnectError, Connection, Connector};
use actix_http::http::{header, HeaderMap, HeaderName, HttpTryFrom};
use actix_service::Service;
use crate::connect::ConnectorWrapper;
use crate::{Client, ClientConfig};
pub struct ClientBuilder {
config: ClientConfig,
default_headers: bool,
allow_redirects: bool,
max_redirects: usize,
}
impl Default for ClientBuilder {
fn default() -> Self {
Self::new()
}
}
impl ClientBuilder {
pub fn new() -> Self {
ClientBuilder {
default_headers: true,
allow_redirects: true,
max_redirects: 10,
config: ClientConfig {
headers: HeaderMap::new(),
timeout: Some(Duration::from_secs(5)),
connector: RefCell::new(Box::new(ConnectorWrapper(
Connector::new().finish(),
))),
},
}
}
pub fn connector<T>(mut self, connector: T) -> Self
where
T: Service<Request = Connect, Error = ConnectError> + 'static,
T::Response: Connection,
<T::Response as Connection>::Future: 'static,
T::Future: 'static,
{
self.config.connector = RefCell::new(Box::new(ConnectorWrapper(connector)));
self
}
pub fn timeout(mut self, timeout: Duration) -> Self {
self.config.timeout = Some(timeout);
self
}
pub fn disable_timeout(mut self) -> Self {
self.config.timeout = None;
self
}
pub fn disable_redirects(mut self) -> Self {
self.allow_redirects = false;
self
}
pub fn max_redirects(mut self, num: usize) -> Self {
self.max_redirects = num;
self
}
pub fn no_default_headers(mut self) -> Self {
self.default_headers = false;
self
}
pub fn header<K, V>(mut self, key: K, value: V) -> Self
where
HeaderName: HttpTryFrom<K>,
<HeaderName as HttpTryFrom<K>>::Error: fmt::Debug,
V: header::IntoHeaderValue,
V::Error: fmt::Debug,
{
match HeaderName::try_from(key) {
Ok(key) => match value.try_into() {
Ok(value) => {
self.config.headers.append(key, value);
}
Err(e) => log::error!("Header value error: {:?}", e),
},
Err(e) => log::error!("Header name error: {:?}", e),
}
self
}
pub fn basic_auth<U>(self, username: U, password: Option<&str>) -> Self
where
U: fmt::Display,
{
let auth = match password {
Some(password) => format!("{}:{}", username, password),
None => format!("{}:", username),
};
self.header(
header::AUTHORIZATION,
format!("Basic {}", base64::encode(&auth)),
)
}
pub fn bearer_auth<T>(self, token: T) -> Self
where
T: fmt::Display,
{
self.header(header::AUTHORIZATION, format!("Bearer {}", token))
}
pub fn finish(self) -> Client {
Client(Rc::new(self.config))
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn client_basic_auth() {
let client = ClientBuilder::new().basic_auth("username", Some("password"));
assert_eq!(
client
.config
.headers
.get(header::AUTHORIZATION)
.unwrap()
.to_str()
.unwrap(),
"Basic dXNlcm5hbWU6cGFzc3dvcmQ="
);
let client = ClientBuilder::new().basic_auth("username", None);
assert_eq!(
client
.config
.headers
.get(header::AUTHORIZATION)
.unwrap()
.to_str()
.unwrap(),
"Basic dXNlcm5hbWU6"
);
}
#[test]
fn client_bearer_auth() {
let client = ClientBuilder::new().bearer_auth("someS3cr3tAutht0k3n");
assert_eq!(
client
.config
.headers
.get(header::AUTHORIZATION)
.unwrap()
.to_str()
.unwrap(),
"Bearer someS3cr3tAutht0k3n"
);
}
}