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fix(kms): auto-append /prpc to onboard source_url #8

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fix(kms): auto-append /prpc to onboard source_url #8

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7 changes: 6 additions & 1 deletion kms/src/onboard_service.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -77,8 +77,13 @@ impl OnboardRpc for OnboardHandler {
}

async fn onboard(self, request: OnboardRequest) -> Result<OnboardResponse> {
let source_url = if request.source_url.ends_with("/prpc") {
request.source_url.clone()
} else {
format!("{}/prpc", request.source_url.trim_end_matches('/'))
Comment on lines +80 to +83

@sentry sentry Bot Feb 13, 2026

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Bug: URL normalization incorrectly appends a duplicate /prpc suffix if the input URL already ends with /prpc/, causing downstream requests to fail.
Severity: MEDIUM

Suggested Fix

The normalization logic should be adjusted to correctly handle URLs with a trailing slash. A robust approach is to first trim any trailing slashes from request.source_url, and then check if the resulting string ends with /prpc before conditionally appending it. This ensures that inputs like .../prpc/ are correctly normalized to .../prpc.

Prompt for AI Agent 
Review the code at the location below. A potential bug has been identified by an AI
agent.
Verify if this is a real issue. If it is, propose a fix; if not, explain why it's not
valid.

Location: kms/src/onboard_service.rs#L80-L83

Potential issue: The URL normalization logic in `onboard_service.rs` incorrectly handles
URLs that end with `/prpc/`. The check `request.source_url.ends_with("/prpc")` returns
false for such an input due to the trailing slash. This causes the code to enter the
`else` block, which trims the trailing slash and then appends another `/prpc` suffix.
This results in a malformed URL like `https://host/prpc/prpc`. Subsequent RPC calls
using this URL will fail with a 404 error, breaking the functionality for clients that
provide URLs with a trailing slash, such as direct API callers or configurations.

Did we get this right? 👍 / 👎 to inform future reviews.

};
Comment on lines +80 to +84

@sentry sentry Bot Feb 13, 2026

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Bug: The URL normalization logic incorrectly handles a source_url ending with /prpc/, resulting in a malformed URL like .../prpc/prpc.
Severity: MEDIUM

Suggested Fix

Reverse the order of operations in the URL normalization logic. First, call trim_end_matches('/') on the source_url to remove any trailing slashes. Then, perform the ends_with("/prpc") check to decide whether to append /prpc. This ensures that inputs like https://host/prpc/ are correctly handled.

Prompt for AI Agent 
Review the code at the location below. A potential bug has been identified by an AI
agent.
Verify if this is a real issue. If it is, propose a fix; if not, explain why it's not
valid.

Location: kms/src/onboard_service.rs#L80-L84

Potential issue: The URL normalization logic has a flaw in its order of operations. When
a `source_url` ending in `/prpc/` (with a trailing slash) is provided, the code first
checks if the string `ends_with("/prpc")`. This check returns false due to the trailing
slash. Consequently, the code enters the `else` block, where it trims the trailing slash
and then appends another `/prpc`. This results in a malformed URL, such as
`https://host/prpc/prpc`, which will cause subsequent API calls to fail with 404 errors,
breaking the onboarding functionality for that user.

Did we get this right? 👍 / 👎 to inform future reviews.

let keys = Keys::onboard(
&request.source_url,
&source_url,
&request.domain,
self.state.config.onboard.quote_enabled,
self.state.config.pccs_url.clone(),
Expand Down