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* [proxy] Propagate most errors to user This change enables propagation of most errors to the user (e.g. auth and connectivity errors). Some of them will be stripped of sensitive information. As a side effect, most occurrences of `anyhow::Error` were replaced with concrete error types. * [proxy] Box weighty errors
18 lines
759 B
Rust
18 lines
759 B
Rust
/// Marks errors that may be safely shown to a client.
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/// This trait can be seen as a specialized version of [`ToString`].
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///
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/// NOTE: This trait should not be implemented for [`anyhow::Error`], since it
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/// is way too convenient and tends to proliferate all across the codebase,
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/// ultimately leading to accidental leaks of sensitive data.
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pub trait UserFacingError: ToString {
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/// Format the error for client, stripping all sensitive info.
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///
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/// Although this might be a no-op for many types, it's highly
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/// recommended to override the default impl in case error type
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/// contains anything sensitive: various IDs, IP addresses etc.
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#[inline(always)]
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fn to_string_client(&self) -> String {
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self.to_string()
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}
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}
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