pub struct HttpRequestMiddleware<S> { /* private fields */ }Expand description
HTTP HttpRequestMiddleware with compatibility workarounds.
This middleware makes the following changes to HTTP requests:
§Remove jsonrpc field in JSON RPC 1.0
Removes “jsonrpc: 1.0” fields from requests, because the “jsonrpc” field was only added in JSON-RPC 2.0.
http://www.simple-is-better.org/rpc/#differences-between-1-0-and-2-0
§Add missing content-type HTTP header
Some RPC clients don’t include a content-type HTTP header.
But unlike web browsers, jsonrpsee does not do content sniffing.
If there is no content-type header, we assume the content is JSON,
and let the parser error if we are incorrect.
§Authenticate incoming requests
If the cookie-based RPC authentication is enabled, check that the incoming request contains the authentication cookie.
This enables compatibility with zcash-cli.
§Security
Any user-specified data in RPC requests is hex or base58check encoded. We assume lightwalletd validates data encodings before sending it on to Zebra. So any fixes Zebra performs won’t change user-specified data.
Implementations§
Source§impl<S> HttpRequestMiddleware<S>
impl<S> HttpRequestMiddleware<S>
Sourcepub fn new(service: S, cookie: Option<Cookie>) -> Self
pub fn new(service: S, cookie: Option<Cookie>) -> Self
Create a new HttpRequestMiddleware with the given service and cookie.
Sourcepub fn check_credentials(&self, headers: &HeaderMap) -> bool
pub fn check_credentials(&self, headers: &HeaderMap) -> bool
Check if the request is authenticated.
Sourcepub fn insert_or_replace_content_type_header(headers: &mut HeaderMap)
pub fn insert_or_replace_content_type_header(headers: &mut HeaderMap)
Insert or replace client supplied content-type HTTP header to application/json in the following cases:
- no
content-typesupplied. - supplied
content-typestart withtext/plain, for example:text/plaintext/plain;text/plain; charset=utf-8
application/json is the only content-type accepted by the Zebra rpc endpoint:
§Security
content-typeheaders exist so that applications know they are speaking the correct protocol with the correct format. We can be a bit flexible, but there are some types (such as binary) we shouldn’t allow. In particular, the “application/x-www-form-urlencoded” header should be rejected, so browser forms can’t be used to attack a local RPC port. See “The Role of Routers in the CSRF Attack” in https://www.invicti.com/blog/web-security/importance-content-type-header-http-requests/- Checking all the headers is secure, but only because hyper has custom code that just reads the first content-type header. https://github.com/hyperium/headers/blob/f01cc90cf8d601a716856bc9d29f47df92b779e4/src/common/content_type.rs#L102-L108
Trait Implementations§
Source§impl<S: Clone> Clone for HttpRequestMiddleware<S>
impl<S: Clone> Clone for HttpRequestMiddleware<S>
Source§fn clone(&self) -> HttpRequestMiddleware<S>
fn clone(&self) -> HttpRequestMiddleware<S>
Returns a duplicate of the value. Read more
1.0.0 · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source. Read moreSource§impl<S: Debug> Debug for HttpRequestMiddleware<S>
impl<S: Debug> Debug for HttpRequestMiddleware<S>
Source§impl<S> Service<Request<Body>> for HttpRequestMiddleware<S>where
S: Service<HttpRequest, Response = HttpResponse> + Clone + Send + 'static,
S::Error: Into<BoxError> + 'static,
S::Future: Send + 'static,
impl<S> Service<Request<Body>> for HttpRequestMiddleware<S>where
S: Service<HttpRequest, Response = HttpResponse> + Clone + Send + 'static,
S::Error: Into<BoxError> + 'static,
S::Future: Send + 'static,
Source§type Future = Pin<Box<dyn Future<Output = Result<<HttpRequestMiddleware<S> as Service<Request<Body>>>::Response, <HttpRequestMiddleware<S> as Service<Request<Body>>>::Error>> + Send>>
type Future = Pin<Box<dyn Future<Output = Result<<HttpRequestMiddleware<S> as Service<Request<Body>>>::Response, <HttpRequestMiddleware<S> as Service<Request<Body>>>::Error>> + Send>>
The future response value.
Auto Trait Implementations§
impl<S> Freeze for HttpRequestMiddleware<S>where
S: Freeze,
impl<S> RefUnwindSafe for HttpRequestMiddleware<S>where
S: RefUnwindSafe,
impl<S> Send for HttpRequestMiddleware<S>where
S: Send,
impl<S> Sync for HttpRequestMiddleware<S>where
S: Sync,
impl<S> Unpin for HttpRequestMiddleware<S>where
S: Unpin,
impl<S> UnwindSafe for HttpRequestMiddleware<S>where
S: UnwindSafe,
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