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seaweedfs/weed/iam/sts
Chris LuGitHubDevin <158243242+devin-ai-integration[bot]@users.noreply.github.com>Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>
2864bc0fe8 s3: honor configured session bounds on AssumeRole and LDAP identity (#11478)
* sts: export CalculateSessionDuration

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* s3: honor configured session bounds on AssumeRole and LDAP identity

prepareSTSCredentials hardcoded a one-hour session when the caller
omitted DurationSeconds, so sts.tokenDuration was ignored and
sts.maxSessionLength only clamped explicit requests: asking for 3600s
against a 20m ceiling was rejected while omitting the parameter was
granted a full hour (#11473). The two affected handlers now use the
same default-then-cap calculation as AssumeRoleWithWebIdentity.

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Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

* iam: keep MaxSessionDuration through role store copies

copyRoleDefinition rebuilt RoleDefinition field by field and dropped
MaxSessionDuration, so memory-backed role stores silently discarded the
per-role session bound on every write and read (devin on #11478).

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Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

* sts: apply per-role MaxSessionDuration to resolved session durations

Review follow-up on #11478 (devin): the role bound only ever applied to
explicit DurationSeconds values — an omitted duration resolved to the
configured default and sailed past a shorter role max on every assume
path.

- capDurationByRole now resolves min(requested||tokenDuration, roleMax),
  so AssumeRoleWithWebIdentity and AssumeRoleWithCredentials cap
  defaults the same way they cap explicit values.
- prepareSTSCredentials caps the calculated duration at the named
  role's MaxSessionDuration, covering the AssumeRole and LDAP handlers;
  self-assumption has no role definition to consult.

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Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

* iam: keep MaxSessionDuration through the cached role store

genericCopyRoleDefinition drops MaxSessionDuration the same way
copyRoleDefinition did, so the cached filer role store reads back a zero
maximum and every downstream duration cap is skipped (greptile on
#11478).

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Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

* sts: only materialize defaults that pass session duration validation

Review follow-up on #11478 (greptile): materializing an omitted
DurationSeconds into an explicit value could exceed the service's own
input bound (a configured tokenDuration above maxSessionLength) and turn
a previously working request into a validation error.

capDurationByRole now leaves nil anything the service can resolve
better itself, clamps a tightened default at maxSessionLengthSeconds,
and floors a role bound below 900s to the tightest issuable value.

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Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

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Co-authored-by: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>
2026-09-27 07:01:51 +08:00
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