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use mediatypes;
use v2::*;
use futures::Stream;
use hyper::header;
use hyper::StatusCode;
use mime;
mod manifest_schema1;
pub use self::manifest_schema1::*;
mod manifest_schema2;
pub use self::manifest_schema2::*;
impl Client {
pub fn get_manifest(&self, name: &str, reference: &str) -> FutureManifest {
let url = match hyper::Uri::from_str(&format!(
"{}/v2/{}/manifests/{}",
self.base_url.clone(),
name,
reference
)) {
Ok(url) => url,
Err(e) => {
let msg = format!("failed to parse Uri from str: {}", e);
error!("{}", msg);
return Box::new(futures::future::err::<_, _>(Error::from(msg)));
}
};
let req = {
let mut req = match self.new_request(hyper::Method::GET, url.clone()) {
Ok(r) => r,
Err(e) => {
let msg = format!("new_request failed: {}", e);
error!("{}", msg);
return Box::new(futures::future::err(Error::from(msg)));
}
};
let mtype = mediatypes::MediaTypes::ManifestV2S2.to_string();
req.headers_mut().append(
header::ACCEPT,
match header::HeaderValue::from_str(&mtype) {
Ok(headervalue) => headervalue,
Err(e) => {
let msg = format!("failed to parse HeaderValue from str: {}:", e);
error!("{}", msg);
return Box::new(futures::future::err::<_, _>(Error::from(msg)));
}
},
);
req
};
let freq = self.hclient.request(req);
let fres = freq
.from_err()
.inspect(move |_| {
trace!("GET {:?}", url);
}).and_then(|r| {
let status = r.status();
trace!("Got status: {:?}", status);
match status {
hyper::StatusCode::OK => Ok(r),
_ => Err(format!("get_manifest: wrong HTTP status '{}'", status).into()),
}
}).and_then(|r| {
r.into_body().concat2().map_err(|e| {
format!("get_manifest: failed to fetch the whole body: {}", e).into()
})
}).and_then(|body| Ok(body.into_bytes().to_vec()));
Box::new(fres)
}
pub fn has_manifest(
&self,
name: &str,
reference: &str,
mediatypes: Option<&[&str]>,
) -> mediatypes::FutureMediaType {
let url = {
let ep = format!(
"{}/v2/{}/manifests/{}",
self.base_url.clone(),
name,
reference
);
match hyper::Uri::from_str(ep.as_str()) {
Ok(url) => url,
Err(e) => {
let msg = format!("failed to parse Uri from str: {}", e);
error!("{}", msg);
return Box::new(futures::future::err::<_, _>(Error::from(msg)));
}
}
};
let accept_types = match {
match mediatypes {
None => if let Ok(m) = mediatypes::MediaTypes::ManifestV2S2.to_mime() {
Ok(vec![m])
} else {
Err(Error::from("to_mime failed"))
},
Some(ref v) => to_mimes(v),
}
} {
Ok(x) => x,
Err(e) => {
return Box::new(futures::future::err::<_, _>(Error::from(format!(
"failed to match mediatypes: {}",
e
))));
}
};
let req = {
let mut req = match self.new_request(hyper::Method::HEAD, url.clone()) {
Ok(r) => r,
Err(e) => {
let msg = format!("new_request failed: {}", e);
error!("{}", msg);
return Box::new(futures::future::err(Error::from(msg)));
}
};
for v in accept_types {
let _ = header::HeaderValue::from_str(&v.to_string())
.map(|hval| req.headers_mut().append(hyper::header::ACCEPT, hval));
}
req
};
let freq = self.hclient.request(req);
let fres = freq
.from_err()
.inspect(move |_| {
trace!("HEAD {:?}", url);
}).and_then(|r| {
let status = r.status();
let mut ct = None;
if let Some(h) = r.headers().get(header::CONTENT_TYPE) {
if let Ok(s) = h.to_str() {
ct = mediatypes::MediaTypes::from_str(s).ok();
}
}
trace!("Manifest check result: {:?}", r.status());
let res = match status {
StatusCode::MOVED_PERMANENTLY
| StatusCode::TEMPORARY_REDIRECT
| StatusCode::FOUND
| StatusCode::OK => ct,
StatusCode::NOT_FOUND => None,
_ => return Err(format!("has_manifest: wrong HTTP status '{}'", status).into()),
};
Ok(res)
});
Box::new(fres)
}
}
fn to_mimes(v: &[&str]) -> Result<Vec<mime::Mime>> {
let res = v
.iter()
.filter_map(|x| {
let mtype = mediatypes::MediaTypes::from_str(x);
match mtype {
Ok(m) => Some(match m.to_mime() {
Ok(mime) => mime,
Err(e) => {
error!("to_mime failed: {}", e);
return None;
}
}),
_ => None,
}
}).collect();
Ok(res)
}