extern crate base64;
extern crate md5;
use bytes::Bytes;
use maybe_async::maybe_async;
use reqwest::{Client, Response};
use std::collections::HashMap;
use time::OffsetDateTime;
use super::request_trait::{Request, ResponseData, ResponseDataStream};
use crate::bucket::Bucket;
use crate::command::Command;
use crate::command::HttpMethod;
use crate::error::S3Error;
use tokio_stream::StreamExt;
pub struct Reqwest<'a> {
pub bucket: &'a Bucket,
pub path: &'a str,
pub command: Command<'a>,
pub datetime: OffsetDateTime,
pub sync: bool,
}
#[maybe_async]
impl<'a> Request for Reqwest<'a> {
type Response = reqwest::Response;
type HeaderMap = reqwest::header::HeaderMap;
fn command(&self) -> Command {
self.command.clone()
}
fn path(&self) -> String {
self.path.to_string()
}
fn datetime(&self) -> OffsetDateTime {
self.datetime
}
fn bucket(&self) -> Bucket {
self.bucket.clone()
}
async fn response(&self) -> Result<Response, S3Error> {
let headers = match self.headers() {
Ok(headers) => headers,
Err(e) => return Err(e),
};
let mut client_builder = Client::builder();
if let Some(timeout) = self.bucket.request_timeout {
client_builder = client_builder.timeout(timeout)
}
if cfg!(feature = "no-verify-ssl") {
cfg_if::cfg_if! {
if #[cfg(feature = "tokio-native-tls")]
{
client_builder = client_builder.danger_accept_invalid_hostnames(true);
}
}
cfg_if::cfg_if! {
if #[cfg(any(feature = "tokio-native-tls", feature = "tokio-rustls-tls"))]
{
client_builder = client_builder.danger_accept_invalid_certs(true);
}
}
}
let client = client_builder.build()?;
let method = match self.command.http_verb() {
HttpMethod::Delete => reqwest::Method::DELETE,
HttpMethod::Get => reqwest::Method::GET,
HttpMethod::Post => reqwest::Method::POST,
HttpMethod::Put => reqwest::Method::PUT,
HttpMethod::Head => reqwest::Method::HEAD,
};
let request = client
.request(method, self.url()?.as_str())
.headers(headers)
.body(self.request_body());
let response = request.send().await?;
if cfg!(feature = "fail-on-err") && !response.status().is_success() {
let status = response.status().as_u16();
let text = response.text().await?;
return Err(S3Error::Http(status, text));
}
Ok(response)
}
async fn response_data(&self, etag: bool) -> Result<ResponseData, S3Error> {
let response = self.response().await?;
let status_code = response.status().as_u16();
let mut headers = response.headers().clone();
let response_headers = headers
.clone()
.iter()
.map(|(k, v)| {
(
k.to_string(),
v.to_str()
.unwrap_or("could-not-decode-header-value")
.to_string(),
)
})
.collect::<HashMap<String, String>>();
let body_vec = if etag {
if let Some(etag) = headers.remove("ETag") {
Bytes::from(etag.to_str()?.to_string())
} else {
Bytes::from("")
}
} else {
response.bytes().await?
};
Ok(ResponseData::new(body_vec, status_code, response_headers))
}
async fn response_data_to_writer<T: tokio::io::AsyncWrite + Send + Unpin>(
&self,
writer: &mut T,
) -> Result<u16, S3Error> {
use tokio::io::AsyncWriteExt;
let response = self.response().await?;
let status_code = response.status();
let mut stream = response.bytes_stream();
while let Some(item) = stream.next().await {
writer.write_all(&item?).await?;
}
Ok(status_code.as_u16())
}
async fn response_header(&self) -> Result<(Self::HeaderMap, u16), S3Error> {
let response = self.response().await?;
let status_code = response.status().as_u16();
let headers = response.headers().clone();
Ok((headers, status_code))
}
async fn response_data_to_stream(&self) -> Result<ResponseDataStream, S3Error> {
let response = self.response().await?;
let status_code = response.status();
let stream = response.bytes_stream().filter_map(|b| b.ok());
Ok(ResponseDataStream {
bytes: Box::pin(stream),
status_code: status_code.as_u16(),
})
}
}
impl<'a> Reqwest<'a> {
pub fn new<'b>(
bucket: &'b Bucket,
path: &'b str,
command: Command<'b>,
) -> Result<Reqwest<'b>, S3Error> {
bucket.credentials_refresh()?;
Ok(Reqwest {
bucket,
path,
command,
datetime: OffsetDateTime::now_utc(),
sync: false,
})
}
}
#[cfg(test)]
mod tests {
use crate::bucket::Bucket;
use crate::command::Command;
use crate::request::tokio_backend::Reqwest;
use crate::request::Request;
use awscreds::Credentials;
use http::header::{HOST, RANGE};
fn fake_credentials() -> Credentials {
let access_key = "AKIAIOSFODNN7EXAMPLE";
let secert_key = "wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLEKEY";
Credentials::new(Some(access_key), Some(secert_key), None, None, None).unwrap()
}
#[test]
fn url_uses_https_by_default() {
let region = "custom-region".parse().unwrap();
let bucket = Bucket::new("my-first-bucket", region, fake_credentials()).unwrap();
let path = "/my-first/path";
let request = Reqwest::new(&bucket, path, Command::GetObject).unwrap();
assert_eq!(request.url().unwrap().scheme(), "https");
let headers = request.headers().unwrap();
let host = headers.get(HOST).unwrap();
assert_eq!(*host, "my-first-bucket.custom-region".to_string());
}
#[test]
fn url_uses_https_by_default_path_style() {
let region = "custom-region".parse().unwrap();
let bucket = Bucket::new("my-first-bucket", region, fake_credentials())
.unwrap()
.with_path_style();
let path = "/my-first/path";
let request = Reqwest::new(&bucket, path, Command::GetObject).unwrap();
assert_eq!(request.url().unwrap().scheme(), "https");
let headers = request.headers().unwrap();
let host = headers.get(HOST).unwrap();
assert_eq!(*host, "custom-region".to_string());
}
#[test]
fn url_uses_scheme_from_custom_region_if_defined() {
let region = "http://custom-region".parse().unwrap();
let bucket = Bucket::new("my-second-bucket", region, fake_credentials()).unwrap();
let path = "/my-second/path";
let request = Reqwest::new(&bucket, path, Command::GetObject).unwrap();
assert_eq!(request.url().unwrap().scheme(), "http");
let headers = request.headers().unwrap();
let host = headers.get(HOST).unwrap();
assert_eq!(*host, "my-second-bucket.custom-region".to_string());
}
#[test]
fn url_uses_scheme_from_custom_region_if_defined_with_path_style() {
let region = "http://custom-region".parse().unwrap();
let bucket = Bucket::new("my-second-bucket", region, fake_credentials())
.unwrap()
.with_path_style();
let path = "/my-second/path";
let request = Reqwest::new(&bucket, path, Command::GetObject).unwrap();
assert_eq!(request.url().unwrap().scheme(), "http");
let headers = request.headers().unwrap();
let host = headers.get(HOST).unwrap();
assert_eq!(*host, "custom-region".to_string());
}
#[test]
fn test_get_object_range_header() {
let region = "http://custom-region".parse().unwrap();
let bucket = Bucket::new("my-second-bucket", region, fake_credentials())
.unwrap()
.with_path_style();
let path = "/my-second/path";
let request = Reqwest::new(
&bucket,
path,
Command::GetObjectRange {
start: 0,
end: None,
},
)
.unwrap();
let headers = request.headers().unwrap();
let range = headers.get(RANGE).unwrap();
assert_eq!(range, "bytes=0-");
let request = Reqwest::new(
&bucket,
path,
Command::GetObjectRange {
start: 0,
end: Some(1),
},
)
.unwrap();
let headers = request.headers().unwrap();
let range = headers.get(RANGE).unwrap();
assert_eq!(range, "bytes=0-1");
}
}