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Add ability to configure CORS header (#1345)

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## Issue Addressed

https://github.com/sigp/lighthouse/issues/1177

## Proposed Changes

Add a command line option (`--http-allow-origin`) and a config item for configuring the `Access-Control-Allow-Origin` response header.  This should unblock making XMLHttpRequests.
This commit is contained in:
Adam Szkoda
2020-07-16 07:23:14 +00:00
parent 4a01f44206
commit fc5e6cbbb0
9 changed files with 210 additions and 152 deletions
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8
beacon_node/rest_api/src/error.rs
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@@ -11,6 +11,7 @@ pub enum ApiError {
UnsupportedType(String),
ImATeapot(String), // Just in case.
ProcessingError(String), // A 202 error, for when a block/attestation cannot be processed, but still transmitted.
InvalidHeaderValue(String),
}
pub type ApiResult = Result<Response<Body>, ApiError>;
@@ -26,6 +27,7 @@ impl ApiError {
ApiError::UnsupportedType(desc) => (StatusCode::UNSUPPORTED_MEDIA_TYPE, desc),
ApiError::ImATeapot(desc) => (StatusCode::IM_A_TEAPOT, desc),
ApiError::ProcessingError(desc) => (StatusCode::ACCEPTED, desc),
ApiError::InvalidHeaderValue(desc) => (StatusCode::INTERNAL_SERVER_ERROR, desc),
}
}
}
@@ -77,6 +79,12 @@ impl From<std::io::Error> for ApiError {
}
}
impl From<hyper::header::InvalidHeaderValue> for ApiError {
fn from(e: hyper::header::InvalidHeaderValue) -> ApiError {
ApiError::InvalidHeaderValue(format!("Invalid CORS header value: {:?}", e))
}
}
impl StdError for ApiError {
fn cause(&self) -> Option<&dyn StdError> {
None