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https://github.com/versity/versitygw.git
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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.
91 lines
2.5 KiB
Go
91 lines
2.5 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,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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package debuglogger
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import (
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"fmt"
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"strings"
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"sync/atomic"
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)
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// Level controls both whether the debug logger produces any output and,
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// when it does, whether secrets and tokens embedded in that output are
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// masked.
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type Level int32
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const (
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// LevelSilent prints no debug logs. This is the default.
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LevelSilent Level = iota
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// LevelDebug prints full request/response logs with secrets and
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// tokens (access keys, session tokens, signatures, ...) masked.
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LevelDebug
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// LevelUnsafe prints full request/response logs with secrets and
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// tokens shown in the clear. Anyone with access to this output can
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// read and replay credentials directly; never use in production.
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LevelUnsafe
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)
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func (l Level) String() string {
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switch l {
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case LevelSilent:
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return "silent"
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case LevelDebug:
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return "debug"
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case LevelUnsafe:
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return "unsafe"
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default:
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return "unknown"
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}
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}
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// ParseLevel parses "silent", "debug", or "unsafe" (case-insensitive) into
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// a Level. An empty string parses as LevelSilent.
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func ParseLevel(s string) (Level, error) {
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switch strings.ToLower(strings.TrimSpace(s)) {
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case "", "silent":
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return LevelSilent, nil
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case "debug":
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return LevelDebug, nil
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case "unsafe":
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return LevelUnsafe, nil
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default:
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return LevelSilent, fmt.Errorf("invalid log level %q: must be one of 'silent', 'debug', 'unsafe'", s)
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}
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}
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var currentLevel atomic.Int32
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// SetLevel sets the active debug log level.
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func SetLevel(l Level) {
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currentLevel.Store(int32(l))
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}
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// CurrentLevel returns the active debug log level.
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func CurrentLevel() Level {
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return Level(currentLevel.Load())
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}
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// IsDebugEnabled returns true when the debug logger produces output, at
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// either LevelDebug or LevelUnsafe.
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func IsDebugEnabled() bool {
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return CurrentLevel() != LevelSilent
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}
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// IsUnsafeEnabled returns true when the debug logger is configured to print
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// secrets and tokens without masking.
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func IsUnsafeEnabled() bool {
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return CurrentLevel() == LevelUnsafe
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}
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