To harden Renovate from being able to access internal hosts, we can add
a level of enforcement on all outgoing requests.
We can split this into two types of traffic:
- where the response becomes configuration (i.e. `extends`)
- where the response does not become configuration (i.e.
`customDatasources`)
To harden this, we enforce on every outbound HTTP request:
- check the resolved URL before anything, including cache lookups, can
proceed
- catching IP-literal hosts in every spelling the WHATWG URL parser normalizes
- blocking known Cloud metadata IPs, too
- a `dnsLookup` wrapper validates every address a hostname resolves to,
on every new connection, which also defeats DNS rebinding
- a `beforeRedirect` hook re-runs the URL check on each redirect
target, with the new host getting its own grant lookup rather than
inheriting the original host's verdict
We default this enforcement to `warn`, to not break existing deployments
and instead give them visibility into required configuration before a
future major version (major+1) enables `block` by default.
We'll also remove allow in a future major version (major+2), to give
time for admins to migrate over.
When a request is blocked, this degrades like an unreachable registry,
so a Renovate run isn't aborted by a blocked request.
As part of this, we can also provide a worked example of the different
cases that do/do not need allowing via `hostRules`.
Requests through an admin-configured proxy resolve DNS at the proxy, so
`dnsLookup` never runs for them, so we can resolve the hostname locally
and validate every address before the request instead.
This doesn't catch everything, especially as the proxy may resolve the
name to a different result, and if we can't resolve the name - possible
in locked-down corporate environments - we fail open.
Child processes aren't currently able to route traffic through
Renovate's HTTP layer, so are unrestricted.
Co-authored-by: Claude Fable 5 <jamie.tanna+claude-code@mend.io>
Co-authored-by: Claude Opus 5 <jamie.tanna+claude-code@mend.io>
Co-authored-by: Claude Sonnet 5 <jamie.tanna+claude-code@mend.io>
* fix(config/global): return default values for `GlobalConfig.get`
As noted in #39949, it can be awkward working with in `GlobalConfig.get`, where
we would previously need to specify the default value when calling `.get`,
which could lead to drift with the defaults for a given config option.
To reduce this risk, we can rely on a given `default` for a configuration
option, providing that as a default.
Because this now definitely returns a value that matches the config option, it
now allows us to remove `!` assertions.
* fixup! fix(config/global): return default values for `GlobalConfig.get`
Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
* fixup! fix(config/global): return default values for `GlobalConfig.get`
* test(presets): remove impossible test
As it's now not possible to set a value as `undefined` (as
`GlobalConfig` will then use the default), this test no longer validates
anything.
* test(workers/repository): add mock
Now `platform` defaults to `github`, we need to mock out the call to
fetch config.
Co-authored-by: Claude Sonnet 4.6 <jamie.tanna+claude-code@mend.io>
* test: coverage
* test: coverage
---------
Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: Claude Sonnet 4.6 <jamie.tanna+claude-code@mend.io>
* fix(http): fallback to github hostType for GHE platform endpoint
When running against GitHub Enterprise Server, datasources not listed
in GITHUB_API_USING_HOST_TYPES (e.g. github-digest) fail to authenticate
because the existing fallback only covers api.github.com URLs.
This adds a host-matching fallback: when the active platform is github
and the request URL targets the same host as the configured endpoint,
credentials from the github hostType rule are applied.
* Refactor
* Fix
feat(hostRules): automagically use host rules for any `api.github.com` lookups
As noted in #38732, the Typst datasource performs API calls to the
GitHub APIs, but as we do not have explicit datasource mapping for the
API calls (via `GITHUB_API_USING_HOST_TYPES`), we end up sending
unauthenticated API calls, which then can result in rate limits.
We had previously attempted to fix this in #30490, for a different
datasource, and there are likely other datasources impacted.
To simplify this, we can auto-wire any `https://api.github.com/` API
calls with the `hostType: github` hostRule, when matching against the
hostname from the `url`.
This also adds a note to deprecate the usage of
`GITHUB_API_USING_HOST_TYPES`, unless it's explicitly needed.
Closes#38953.
Jamie Tanna