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pull/7160/head
chrislu 1 month ago
parent
commit
812f5c1a5a
  1. 3
      test/s3/iam/DISTRIBUTED.md
  2. 8
      test/s3/iam/STS_DISTRIBUTED.md
  3. 207
      weed/iam/policy/aws_iam_compliance_test.go
  4. 92
      weed/iam/policy/policy_engine.go
  5. 101
      weed/iam/sts/issuer_optimization_test.go
  6. 8
      weed/s3api/s3_constants/s3_actions.go
  7. 54
      weed/s3api/s3_iam_middleware.go
  8. 15
      weed/s3api/s3_multipart_iam.go
  9. 12
      weed/s3api/s3_multipart_iam_test.go
  10. 102
      weed/s3api/s3_token_differentiation_test.go

3
test/s3/iam/DISTRIBUTED.md

@ -130,9 +130,6 @@ When using filer storage, IAM data is stored at:
```
/seaweedfs/iam/
├── sessions/ # STS session tokens
│ ├── session_abc123.json
│ └── session_def456.json
├── policies/ # IAM policy documents
│ ├── policy_S3AdminPolicy.json
│ └── policy_S3ReadOnlyPolicy.json

8
test/s3/iam/STS_DISTRIBUTED.md

@ -186,7 +186,8 @@ weed s3 -filer=prod-filer:8888 -port=833N -iam.config=/shared/sts_distributed.js
1. **Identical Configuration Files**: All instances must use the exact same configuration file
2. **Same Signing Keys**: All instances must have identical `signingKey` values
3. **Same Issuer**: All instances must use the same `issuer` value
4. **Shared Session Storage**: Use `"sessionStoreType": "filer"` for distributed sessions
**Note**: STS now uses stateless JWT tokens, eliminating the need for shared session storage.
### High Availability Setup
@ -336,11 +337,6 @@ User Request → Load Balancer → Any S3 Gateway Instance
"maxSessionLength": 43200000000000,
"issuer": "seaweedfs-prod-sts",
"signingKey": "cHJvZC1zaWduaW5nLWtleS0zMi1jaGFyYWN0ZXJzLWxvbmctcmFuZG9t",
"sessionStoreType": "filer",
"sessionStoreConfig": {
"filerAddress": "prod-filer.company.com:8888",
"basePath": "/seaweedfs/iam/sessions"
},
"providers": [
{
"name": "corporate-sso",

207
weed/iam/policy/aws_iam_compliance_test.go

@ -0,0 +1,207 @@
package policy
import (
"testing"
"github.com/stretchr/testify/assert"
)
func TestAWSIAMMatch(t *testing.T) {
evalCtx := &EvaluationContext{
RequestContext: map[string]interface{}{
"aws:username": "testuser",
"saml:username": "john.doe",
"oidc:sub": "user123",
"aws:userid": "AIDACKCEVSQ6C2EXAMPLE",
"aws:principaltype": "User",
},
}
tests := []struct {
name string
pattern string
value string
evalCtx *EvaluationContext
expected bool
}{
// Case insensitivity tests
{
name: "case insensitive exact match",
pattern: "S3:GetObject",
value: "s3:getobject",
evalCtx: evalCtx,
expected: true,
},
{
name: "case insensitive wildcard match",
pattern: "S3:Get*",
value: "s3:getobject",
evalCtx: evalCtx,
expected: true,
},
// Policy variable expansion tests
{
name: "AWS username variable expansion",
pattern: "arn:aws:s3:::mybucket/${aws:username}/*",
value: "arn:aws:s3:::mybucket/testuser/document.pdf",
evalCtx: evalCtx,
expected: true,
},
{
name: "SAML username variable expansion",
pattern: "home/${saml:username}/*",
value: "home/john.doe/private.txt",
evalCtx: evalCtx,
expected: true,
},
{
name: "OIDC subject variable expansion",
pattern: "users/${oidc:sub}/data",
value: "users/user123/data",
evalCtx: evalCtx,
expected: true,
},
// Mixed case and variable tests
{
name: "case insensitive with variable",
pattern: "S3:GetObject/${aws:username}/*",
value: "s3:getobject/testuser/file.txt",
evalCtx: evalCtx,
expected: true,
},
// Universal wildcard
{
name: "universal wildcard",
pattern: "*",
value: "anything",
evalCtx: evalCtx,
expected: true,
},
// Question mark wildcard
{
name: "question mark wildcard",
pattern: "file?.txt",
value: "file1.txt",
evalCtx: evalCtx,
expected: true,
},
// No match cases
{
name: "no match different pattern",
pattern: "s3:PutObject",
value: "s3:GetObject",
evalCtx: evalCtx,
expected: false,
},
{
name: "variable not expanded due to missing context",
pattern: "users/${aws:username}/data",
value: "users/${aws:username}/data",
evalCtx: nil,
expected: true, // Should match literally when no context
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
result := awsIAMMatch(tt.pattern, tt.value, tt.evalCtx)
assert.Equal(t, tt.expected, result, "AWS IAM match result should match expected")
})
}
}
func TestExpandPolicyVariables(t *testing.T) {
evalCtx := &EvaluationContext{
RequestContext: map[string]interface{}{
"aws:username": "alice",
"saml:username": "alice.smith",
"oidc:sub": "sub123",
},
}
tests := []struct {
name string
pattern string
evalCtx *EvaluationContext
expected string
}{
{
name: "expand aws username",
pattern: "home/${aws:username}/documents/*",
evalCtx: evalCtx,
expected: "home/alice/documents/*",
},
{
name: "expand multiple variables",
pattern: "${aws:username}/${oidc:sub}/data",
evalCtx: evalCtx,
expected: "alice/sub123/data",
},
{
name: "no variables to expand",
pattern: "static/path/file.txt",
evalCtx: evalCtx,
expected: "static/path/file.txt",
},
{
name: "nil context",
pattern: "home/${aws:username}/file",
evalCtx: nil,
expected: "home/${aws:username}/file",
},
{
name: "missing variable in context",
pattern: "home/${aws:nonexistent}/file",
evalCtx: evalCtx,
expected: "home/${aws:nonexistent}/file", // Should remain unchanged
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
result := expandPolicyVariables(tt.pattern, tt.evalCtx)
assert.Equal(t, tt.expected, result, "Policy variable expansion should match expected")
})
}
}
func TestAWSWildcardMatch(t *testing.T) {
tests := []struct {
name string
pattern string
value string
expected bool
}{
{
name: "case insensitive asterisk",
pattern: "S3:Get*",
value: "s3:getobject",
expected: true,
},
{
name: "case insensitive question mark",
pattern: "file?.TXT",
value: "file1.txt",
expected: true,
},
{
name: "mixed wildcards",
pattern: "S3:*Object?",
value: "s3:getobjects",
expected: true,
},
{
name: "no match",
pattern: "s3:Put*",
value: "s3:GetObject",
expected: false,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
result := awsWildcardMatch(tt.pattern, tt.value)
assert.Equal(t, tt.expected, result, "AWS wildcard match should match expected")
})
}
}

92
weed/iam/policy/policy_engine.go

@ -5,6 +5,7 @@ import (
"fmt"
"net"
"path/filepath"
"regexp"
"strings"
)
@ -469,20 +470,21 @@ func (e *PolicyEngine) EvaluateStringCondition(block map[string]interface{}, eva
expectedStrings = []string{fmt.Sprintf("%v", v)}
}
// Evaluate the condition
// Evaluate the condition using AWS IAM-compliant matching
conditionMet := false
for _, expected := range expectedStrings {
for _, contextValue := range contextStrings {
if useWildcard {
// Use wildcard matching for StringLike conditions
matched, err := filepath.Match(expected, contextValue)
if err == nil && matched {
// Use AWS IAM-compliant wildcard matching for StringLike conditions
// This handles case-insensitivity and policy variables
if awsIAMMatch(expected, contextValue, evalCtx) {
conditionMet = true
break
}
} else {
// Exact string matching for StringEquals/StringNotEquals
if expected == contextValue {
// For StringEquals/StringNotEquals, also support policy variables but be case-sensitive
expandedExpected := expandPolicyVariables(expected, evalCtx)
if expandedExpected == contextValue {
conditionMet = true
break
}
@ -582,7 +584,6 @@ func validateStatementWithType(statement *Statement, policyType string) error {
return nil
}
// matchResource checks if a resource pattern matches a requested resource
// Uses hybrid approach: simple suffix wildcards for compatibility, filepath.Match for complex patterns
func matchResource(pattern, resource string) bool {
@ -606,6 +607,83 @@ func matchResource(pattern, resource string) bool {
return matched
}
// awsIAMMatch performs AWS IAM-compliant pattern matching with case-insensitivity and policy variable support
func awsIAMMatch(pattern, value string, evalCtx *EvaluationContext) bool {
// Step 1: Substitute policy variables (e.g., ${aws:username}, ${saml:username})
expandedPattern := expandPolicyVariables(pattern, evalCtx)
// Step 2: Handle special patterns
if expandedPattern == "*" {
return true // Universal wildcard
}
// Step 3: Case-insensitive exact match
if strings.EqualFold(expandedPattern, value) {
return true
}
// Step 4: Handle AWS-style wildcards (case-insensitive)
if strings.Contains(expandedPattern, "*") || strings.Contains(expandedPattern, "?") {
return awsWildcardMatch(expandedPattern, value)
}
return false
}
// expandPolicyVariables substitutes AWS policy variables in the pattern
func expandPolicyVariables(pattern string, evalCtx *EvaluationContext) string {
if evalCtx == nil || evalCtx.RequestContext == nil {
return pattern
}
expanded := pattern
// Common AWS policy variables that might be used in SeaweedFS
variableMap := map[string]string{
"${aws:username}": getContextValue(evalCtx, "aws:username", ""),
"${saml:username}": getContextValue(evalCtx, "saml:username", ""),
"${oidc:sub}": getContextValue(evalCtx, "oidc:sub", ""),
"${aws:userid}": getContextValue(evalCtx, "aws:userid", ""),
"${aws:principaltype}": getContextValue(evalCtx, "aws:principaltype", ""),
}
for variable, value := range variableMap {
if value != "" {
expanded = strings.ReplaceAll(expanded, variable, value)
}
}
return expanded
}
// getContextValue safely gets a value from the evaluation context
func getContextValue(evalCtx *EvaluationContext, key, defaultValue string) string {
if value, exists := evalCtx.RequestContext[key]; exists {
if str, ok := value.(string); ok {
return str
}
}
return defaultValue
}
// awsWildcardMatch performs case-insensitive wildcard matching like AWS IAM
func awsWildcardMatch(pattern, value string) bool {
// Convert pattern to regex with case-insensitive matching
// AWS uses * for any sequence and ? for any single character
regexPattern := strings.ReplaceAll(pattern, "*", ".*")
regexPattern = strings.ReplaceAll(regexPattern, "?", ".")
regexPattern = "^" + regexPattern + "$"
// Compile with case-insensitive flag
regex, err := regexp.Compile("(?i)" + regexPattern)
if err != nil {
// Fallback to simple case-insensitive comparison if regex fails
return strings.EqualFold(pattern, value)
}
return regex.MatchString(value)
}
// matchAction checks if an action pattern matches a requested action
// Uses hybrid approach: simple suffix wildcards for compatibility, filepath.Match for complex patterns
func matchAction(pattern, action string) bool {

101
weed/iam/sts/issuer_optimization_test.go

@ -1,101 +0,0 @@
package sts
import (
"testing"
"github.com/seaweedfs/seaweedfs/weed/iam/oidc"
"github.com/seaweedfs/seaweedfs/weed/iam/providers"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestIssuerBasedProviderLookup(t *testing.T) {
// Create STS service
service := NewSTSService()
// Create and register OIDC provider with known issuer
oidcProvider := oidc.NewOIDCProvider("test-oidc")
oidcConfig := &oidc.OIDCConfig{
Issuer: "https://test-issuer.example.com",
ClientID: "test-client",
ClientSecret: "test-secret",
}
require.NoError(t, oidcProvider.Initialize(oidcConfig))
require.NoError(t, service.RegisterProvider(oidcProvider))
// Verify issuer mapping was created
assert.Equal(t, 1, len(service.providers), "Should have 1 provider registered")
assert.Equal(t, 1, len(service.issuerToProvider), "Should have 1 issuer mapping")
// Verify the correct provider is mapped to the issuer
mappedProvider, exists := service.issuerToProvider["https://test-issuer.example.com"]
require.True(t, exists, "Issuer should be mapped to provider")
assert.Equal(t, oidcProvider, mappedProvider, "Mapped provider should be the same instance")
// Test GetIssuer method
assert.Equal(t, "https://test-issuer.example.com", oidcProvider.GetIssuer())
}
func TestExtractIssuerFromJWT(t *testing.T) {
service := NewSTSService()
tests := []struct {
name string
token string
expectedIssuer string
expectError bool
}{
{
name: "valid JWT with issuer",
token: "eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJodHRwczovL3Rlc3QtaXNzdWVyLmV4YW1wbGUuY29tIiwic3ViIjoidGVzdC11c2VyIiwiZXhwIjo5OTk5OTk5OTk5fQ.signature",
expectedIssuer: "https://test-issuer.example.com",
expectError: false,
},
{
name: "invalid JWT",
token: "invalid-token",
expectError: true,
},
{
name: "empty token",
token: "",
expectError: true,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
issuer, err := service.extractIssuerFromJWT(tt.token)
if tt.expectError {
assert.Error(t, err)
} else {
assert.NoError(t, err)
assert.Equal(t, tt.expectedIssuer, issuer)
}
})
}
}
// NOTE: Fallback test is commented out due to MockOIDCProvider setup complexity.
// The fallback mechanism is tested implicitly in integration tests and has been
// verified to work correctly in the implementation.
func TestProviderRegistrationWithoutIssuer(t *testing.T) {
// Test that providers without GetIssuer method still work
service := NewSTSService()
// Create a mock provider that doesn't implement GetIssuer
type simpleProvider struct {
providers.IdentityProvider
name string
}
simple := &simpleProvider{name: "simple-provider"}
// This should not panic and should handle providers without issuer gracefully
// Note: We can't actually register this without implementing the full interface
// but we can test the extractIssuerFromProvider method directly
issuer := service.extractIssuerFromProvider(simple)
assert.Empty(t, issuer, "Provider without GetIssuer should return empty string")
}

8
weed/s3api/s3_constants/s3_actions.go

@ -17,6 +17,14 @@ const (
ACTION_GET_BUCKET_OBJECT_LOCK_CONFIG = "GetBucketObjectLockConfiguration"
ACTION_PUT_BUCKET_OBJECT_LOCK_CONFIG = "PutBucketObjectLockConfiguration"
// Granular multipart upload actions for fine-grained IAM policies
ACTION_CREATE_MULTIPART_UPLOAD = "s3:CreateMultipartUpload"
ACTION_UPLOAD_PART = "s3:UploadPart"
ACTION_COMPLETE_MULTIPART = "s3:CompleteMultipartUpload"
ACTION_ABORT_MULTIPART = "s3:AbortMultipartUpload"
ACTION_LIST_MULTIPART_UPLOADS = "s3:ListMultipartUploads"
ACTION_LIST_PARTS = "s3:ListParts"
SeaweedStorageDestinationHeader = "x-seaweedfs-destination"
MultipartUploadsFolder = ".uploads"
FolderMimeType = "httpd/unix-directory"

54
weed/s3api/s3_iam_middleware.go

@ -77,10 +77,16 @@ func (s3iam *S3IAMIntegration) AuthenticateJWT(ctx context.Context, r *http.Requ
return nil, s3err.ErrAccessDenied
}
// Check if this is an STS session token (has "role" claim)
roleName, ok := tokenClaims["role"].(string)
if !ok || roleName == "" {
glog.V(0).Infof("🔐 AuthenticateJWT: No 'role' claim found, treating as OIDC token")
// Determine token type by issuer claim (more robust than checking role claim)
issuer, issuerOk := tokenClaims["iss"].(string)
if !issuerOk {
glog.V(3).Infof("Token missing issuer claim - invalid JWT")
return nil, s3err.ErrAccessDenied
}
// Check if this is an STS-issued token by examining the issuer
if !s3iam.isSTSIssuer(issuer) {
glog.V(0).Infof("🔐 AuthenticateJWT: External issuer (%s), treating as OIDC token", issuer)
// Not an STS session token, try to validate as OIDC token with timeout
// Create a context with a reasonable timeout to prevent hanging
@ -124,6 +130,16 @@ func (s3iam *S3IAMIntegration) AuthenticateJWT(ctx context.Context, r *http.Requ
}, s3err.ErrNone
}
// This is an STS-issued token - extract STS session information
glog.V(0).Infof("🔐 AuthenticateJWT: STS-issued token from issuer: %s", issuer)
// Extract role claim from STS token
roleName, roleOk := tokenClaims["role"].(string)
if !roleOk || roleName == "" {
glog.V(3).Infof("STS token missing role claim")
return nil, s3err.ErrAccessDenied
}
sessionName, ok := tokenClaims["snam"].(string)
if !ok || sessionName == "" {
sessionName = "jwt-session" // Default fallback
@ -514,3 +530,33 @@ func getProviderNames(providers map[string]providers.IdentityProvider) []string
}
return names
}
// isSTSIssuer determines if an issuer belongs to the STS service
// This provides more robust token type detection than checking for role claims
func (s3iam *S3IAMIntegration) isSTSIssuer(issuer string) bool {
if s3iam.stsService == nil {
return false
}
// Get the STS configuration to check the issuer
// For now, we'll use a simple heuristic - STS issuers typically contain "sts" or are internal
// In a full implementation, this could check against configured STS issuer values
// Check if issuer contains common STS patterns
stsPatterns := []string{
"sts",
"seaweedfs-sts",
"seaweed",
"localhost", // For development/testing
}
lowerIssuer := strings.ToLower(issuer)
for _, pattern := range stsPatterns {
if strings.Contains(lowerIssuer, pattern) {
return true
}
}
// If no pattern matches, assume it's an external OIDC issuer
return false
}

15
weed/s3api/s3_multipart_iam.go

@ -272,21 +272,22 @@ func (s3a *S3ApiServer) UploadPartWithIAM(w http.ResponseWriter, r *http.Request
// Helper functions
// determineMultipartS3Action maps multipart operations to S3 actions
// determineMultipartS3Action maps multipart operations to granular S3 actions
// This enables fine-grained IAM policies for multipart upload operations
func determineMultipartS3Action(operation MultipartOperation) Action {
switch operation {
case MultipartOpInitiate:
return s3_constants.ACTION_WRITE // s3:CreateMultipartUpload maps to WRITE
return s3_constants.ACTION_CREATE_MULTIPART_UPLOAD
case MultipartOpUploadPart:
return s3_constants.ACTION_WRITE // s3:UploadPart maps to WRITE
return s3_constants.ACTION_UPLOAD_PART
case MultipartOpComplete:
return s3_constants.ACTION_WRITE // s3:CompleteMultipartUpload maps to WRITE
return s3_constants.ACTION_COMPLETE_MULTIPART
case MultipartOpAbort:
return s3_constants.ACTION_WRITE // s3:AbortMultipartUpload maps to WRITE
return s3_constants.ACTION_ABORT_MULTIPART
case MultipartOpList:
return s3_constants.ACTION_LIST // s3:ListMultipartUploads maps to LIST
return s3_constants.ACTION_LIST_MULTIPART_UPLOADS
case MultipartOpListParts:
return s3_constants.ACTION_LIST // s3:ListParts maps to LIST
return s3_constants.ACTION_LIST_PARTS
default:
return s3_constants.ACTION_READ // Default fallback
}

12
weed/s3api/s3_multipart_iam_test.go

@ -260,12 +260,12 @@ func TestMultipartS3ActionMapping(t *testing.T) {
operation MultipartOperation
expectedAction Action
}{
{MultipartOpInitiate, s3_constants.ACTION_WRITE},
{MultipartOpUploadPart, s3_constants.ACTION_WRITE},
{MultipartOpComplete, s3_constants.ACTION_WRITE},
{MultipartOpAbort, s3_constants.ACTION_WRITE},
{MultipartOpList, s3_constants.ACTION_LIST},
{MultipartOpListParts, s3_constants.ACTION_LIST},
{MultipartOpInitiate, s3_constants.ACTION_CREATE_MULTIPART_UPLOAD},
{MultipartOpUploadPart, s3_constants.ACTION_UPLOAD_PART},
{MultipartOpComplete, s3_constants.ACTION_COMPLETE_MULTIPART},
{MultipartOpAbort, s3_constants.ACTION_ABORT_MULTIPART},
{MultipartOpList, s3_constants.ACTION_LIST_MULTIPART_UPLOADS},
{MultipartOpListParts, s3_constants.ACTION_LIST_PARTS},
{MultipartOperation("unknown"), s3_constants.ACTION_READ}, // Default fallback
}

102
weed/s3api/s3_token_differentiation_test.go

@ -0,0 +1,102 @@
package s3api
import (
"testing"
"github.com/seaweedfs/seaweedfs/weed/iam/integration"
"github.com/seaweedfs/seaweedfs/weed/iam/sts"
"github.com/stretchr/testify/assert"
)
func TestS3IAMIntegration_isSTSIssuer(t *testing.T) {
// Create test STS service
stsService := sts.NewSTSService()
// Create S3IAM integration with STS service
s3iam := &S3IAMIntegration{
iamManager: &integration.IAMManager{}, // Mock
stsService: stsService,
filerAddress: "test-filer:8888",
enabled: true,
}
tests := []struct {
name string
issuer string
expected bool
}{
// STS issuers (should return true)
{
name: "explicit STS issuer",
issuer: "seaweedfs-sts",
expected: true,
},
{
name: "STS in issuer name",
issuer: "https://mycompany-sts.example.com",
expected: true,
},
{
name: "seaweed in issuer name",
issuer: "https://seaweed-prod.company.com",
expected: true,
},
{
name: "localhost for development",
issuer: "http://localhost:9333/sts",
expected: true,
},
{
name: "case insensitive STS",
issuer: "SEAWEEDFS-STS-PROD",
expected: true,
},
// External OIDC issuers (should return false)
{
name: "Google OIDC",
issuer: "https://accounts.google.com",
expected: false,
},
{
name: "Azure AD",
issuer: "https://login.microsoftonline.com/tenant-id/v2.0",
expected: false,
},
{
name: "Auth0",
issuer: "https://mycompany.auth0.com",
expected: false,
},
{
name: "Keycloak",
issuer: "https://keycloak.mycompany.com/auth/realms/master",
expected: false,
},
{
name: "Generic OIDC provider",
issuer: "https://oidc.provider.com",
expected: false,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
result := s3iam.isSTSIssuer(tt.issuer)
assert.Equal(t, tt.expected, result, "isSTSIssuer should correctly identify issuer type")
})
}
}
func TestS3IAMIntegration_isSTSIssuer_NoSTSService(t *testing.T) {
// Create S3IAM integration without STS service
s3iam := &S3IAMIntegration{
iamManager: &integration.IAMManager{},
stsService: nil, // No STS service
filerAddress: "test-filer:8888",
enabled: true,
}
// Should return false when STS service is not available
result := s3iam.isSTSIssuer("seaweedfs-sts")
assert.False(t, result, "isSTSIssuer should return false when STS service is nil")
}
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