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niksis02
4756b4d236
Implements the `AssumeRoleWithWebIdentity` and `GetCallerIdentity` STS actions, letting callers exchange an external OIDC token for temporary credentials scoped to an IAM role. Token handling covers JWT claim parsing, issuer/audience resolution (including `azp` override semantics), JWKS fetching and caching with `singleflight`-deduplicated refresh, and rate-limited forced refresh on unrecognized `kid` values. OIDC provider thumbprint fetching now performs a real TLS handshake verified against the system trust store and the provider hostname (previously `InsecureSkipVerify`), since the observed certificate is persisted as a long-lived trust anchor rather than used once and discarded; all discovery-document and JWKS fetches go through an SSRF-safe HTTP client with bounded redirects and response size.
Adds policy `Condition` block evaluation, supporting `String`, `Numeric`, `Date`, `Bool`, `BinaryEquals`, and `IpAddress` operators along with their `IfExists`/`Not` variants and `ForAllValues`/`ForAnyValues` set qualifiers, plus policy variable substitution (e.g. `${aws:username}`) in supported operators. Adds identity-based inline policy evaluation and a new IAM authorization middleware that authorizes each request against action, resource, and condition context together, applying the session-policy-intersects-role-policy semantics for assumed-role sessions.
Adds a new debug logger `--log-level` flag (`silent`/`debug`/`unsafe`), along with a tree-based XML masker that redacts secrets and tokens at the property level in logged request/response bodies instead of skipping the whole body. The old `--debug/VGW_DEBUG` flag is kept as a deprecated alias for `--log-level=debug`, printing a console warning that points users at `--log-level` for finer-grained control.
Fixes a Vault storage bug where CAS (check-and-set) writes always read the current document version as 0 because `kvVersion` asserted metadata as `float64` while the Vault client actually returns `json.Number`, causing every write past the first to be rejected as a concurrent modification. Also adds a constant-time `SecureCompare` for signature/token comparisons in sigv4 auth.
Adds an integration test suite (`iam_access_control.go`) covering IAM access control across user, role, and session identities.
40 lines
1.4 KiB
Go
40 lines
1.4 KiB
Go
// Copyright 2026 Versity Software
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// This file is licensed under the Apache License, Version 2.0
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// (the "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package sigv4auth
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import "testing"
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func TestSecureCompare(t *testing.T) {
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tests := []struct {
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name string
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a, b string
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want bool
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}{
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{"equal", "abc123", "abc123", true},
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{"different content, same length", "abc123", "abc124", false},
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{"different length", "abc123", "abc1234", false},
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{"empty vs empty", "", "", true},
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{"empty vs non-empty", "", "a", false},
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{"shares a long common prefix but differs at the end", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaax", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaay", false},
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{"differs only in the first byte", "xaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "yaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", false},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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if got := SecureCompare(tt.a, tt.b); got != tt.want {
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t.Errorf("SecureCompare(%q, %q) = %v, want %v", tt.a, tt.b, got, tt.want)
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}
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})
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}
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}
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