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235 lines
15 KiB
235 lines
15 KiB
/*
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* Minio Cloud Storage, (C) 2015, 2016 Minio, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* 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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*/
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package main
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import (
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"fmt"
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"testing"
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)
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// Tests validate Bucket policy resource matcher.
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func TestBucketPolicyResourceMatch(t *testing.T) {
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// generates statement with given resource..
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generateStatement := func(resource string) policyStatement {
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statement := policyStatement{}
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statement.Resources = []string{resource}
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return statement
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}
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// generates resource prefix.
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generateResource := func(bucketName, objectName string) string {
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return AWSResourcePrefix + bucketName + "/" + objectName
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}
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testCases := []struct {
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resourceToMatch string
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statement policyStatement
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expectedResourceMatch bool
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}{
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// Test case 1-4.
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// Policy with resource ending with bucket/* allows access to all objects inside the given bucket.
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{generateResource("minio-bucket", ""), generateStatement(fmt.Sprintf("%s%s", AWSResourcePrefix, "minio-bucket"+"/*")), true},
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{generateResource("minio-bucket", ""), generateStatement(fmt.Sprintf("%s%s", AWSResourcePrefix, "minio-bucket"+"/*")), true},
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{generateResource("minio-bucket", ""), generateStatement(fmt.Sprintf("%s%s", AWSResourcePrefix, "minio-bucket"+"/*")), true},
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{generateResource("minio-bucket", ""), generateStatement(fmt.Sprintf("%s%s", AWSResourcePrefix, "minio-bucket"+"/*")), true},
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// Test case - 5.
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// Policy with resource ending with bucket/oo* should not allow access to bucket/output.txt.
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{generateResource("minio-bucket", "output.txt"), generateStatement(fmt.Sprintf("%s%s", AWSResourcePrefix, "minio-bucket"+"/oo*")), false},
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// Test case - 6.
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// Policy with resource ending with bucket/oo* should allow access to bucket/ootput.txt.
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{generateResource("minio-bucket", "ootput.txt"), generateStatement(fmt.Sprintf("%s%s", AWSResourcePrefix, "minio-bucket"+"/oo*")), true},
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// Test case - 7.
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// Policy with resource ending with bucket/oo* allows access to all subfolders starting with "oo" inside given bucket.
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{generateResource("minio-bucket", "oop-bucket/my-file"), generateStatement(fmt.Sprintf("%s%s", AWSResourcePrefix, "minio-bucket"+"/oo*")), true},
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// Test case - 8.
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{generateResource("minio-bucket", "Asia/India/1.pjg"), generateStatement(fmt.Sprintf("%s%s", AWSResourcePrefix, "minio-bucket"+"/Asia/Japan/*")), false},
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// Test case - 9.
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{generateResource("minio-bucket", "Asia/India/1.pjg"), generateStatement(fmt.Sprintf("%s%s", AWSResourcePrefix, "minio-bucket"+"/Asia/Japan/*")), false},
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// Test case - 10.
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// Proves that the name space is flat.
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{generateResource("minio-bucket", "Africa/Bihar/India/design_info.doc/Bihar"), generateStatement(fmt.Sprintf("%s%s", AWSResourcePrefix,
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"minio-bucket"+"/*/India/*/Bihar")), true},
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// Test case - 11.
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// Proves that the name space is flat.
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{generateResource("minio-bucket", "Asia/China/India/States/Bihar/output.txt"), generateStatement(fmt.Sprintf("%s%s", AWSResourcePrefix,
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"minio-bucket"+"/*/India/*/Bihar/*")), true},
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}
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for i, testCase := range testCases {
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actualResourceMatch := bucketPolicyResourceMatch(testCase.resourceToMatch, testCase.statement)
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if testCase.expectedResourceMatch != actualResourceMatch {
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t.Errorf("Test %d: Expected Resource match to be `%v`, but instead found it to be `%v`", i+1, testCase.expectedResourceMatch, actualResourceMatch)
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}
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}
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}
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// TestBucketPolicyActionMatch - Test validates whether given action on the
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// bucket/object matches the allowed actions in policyStatement.
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// This test preserves the allowed actions for all 3 sets of policies, that is read-write,read-only, write-only.
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// The intention of the test is to catch any changes made to allowed action for on eof the above 3 major policy groups mentioned.
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func TestBucketPolicyActionMatch(t *testing.T) {
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bucketName := "test-bucket"
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objectPrefix := "test-object"
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testCases := []struct {
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action string
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statement policyStatement
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expectedResult bool
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}{
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// s3:GetBucketLocation is the action necessary to be present in the bucket policy to allow
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// fetching of bucket location on an Anonymous/unsigned request.
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//r ead-write bucket policy is expected to allow GetBucketLocation operation on an anonymous request (Test case - 1).
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{"s3:GetBucketLocation", getReadWriteBucketStatement(bucketName, objectPrefix), true},
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// write-only bucket policy is expected to allow GetBucketLocation operation on an anonymous request (Test case - 2).
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{"s3:GetBucketLocation", getWriteOnlyBucketStatement(bucketName, objectPrefix), true},
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// read-only bucket policy is expected to allow GetBucketLocation operation on an anonymous request (Test case - 3).
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{"s3:GetBucketLocation", getReadOnlyBucketStatement(bucketName, objectPrefix), true},
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// Any of the Object level access permissions shouldn't allow for GetBucketLocation operation on an Anonymous/unsigned request (Test cases 4-6).
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{"s3:GetBucketLocation", getReadWriteObjectStatement(bucketName, objectPrefix), false},
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{"s3:GetBucketLocation", getWriteOnlyObjectStatement(bucketName, objectPrefix), false},
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{"s3:GetBucketLocation", getReadOnlyObjectStatement(bucketName, objectPrefix), false},
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// s3:ListBucketMultipartUploads is the action necessary to be present in the bucket policy to allow
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// Listing of multipart uploads in a given bucket for an Anonymous/unsigned request.
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//read-write bucket policy is expected to allow ListBucketMultipartUploads operation on an anonymous request (Test case 7).
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{"s3:ListBucketMultipartUploads", getReadWriteBucketStatement(bucketName, objectPrefix), true},
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// write-only bucket policy is expected to allow ListBucketMultipartUploads operation on an anonymous request (Test case 8).
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{"s3:ListBucketMultipartUploads", getWriteOnlyBucketStatement(bucketName, objectPrefix), true},
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// read-only bucket policy is expected to not allow ListBucketMultipartUploads operation on an anonymous request (Test case 9).
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// the allowed actions in read-only bucket statement are "s3:GetBucketLocation","s3:ListBucket",
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// this shouldnot allow for ListBucketMultipartUploads operations.
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{"s3:ListBucketMultipartUploads", getReadOnlyBucketStatement(bucketName, objectPrefix), false},
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// Any of the object level policy will not allow for s3:ListBucketMultipartUploads (Test cases 10-12).
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{"s3:ListBucketMultipartUploads", getReadWriteObjectStatement(bucketName, objectPrefix), false},
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{"s3:ListBucketMultipartUploads", getWriteOnlyObjectStatement(bucketName, objectPrefix), false},
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{"s3:ListBucketMultipartUploads", getReadOnlyObjectStatement(bucketName, objectPrefix), false},
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// s3:ListBucket is the action necessary to be present in the bucket policy to allow
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// listing of all objects inside a given bucket on an Anonymous/unsigned request.
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// Cases for testing ListBucket access for different Bucket level access permissions.
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// read-only bucket policy is expected to allow ListBucket operation on an anonymous request (Test case 13).
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{"s3:ListBucket", getReadOnlyBucketStatement(bucketName, objectPrefix), true},
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// read-write bucket policy is expected to allow ListBucket operation on an anonymous request (Test case 14).
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{"s3:ListBucket", getReadWriteBucketStatement(bucketName, objectPrefix), true},
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// write-only bucket policy is expected to not allow ListBucket operation on an anonymous request (Test case 15).
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// the allowed actions in write-only bucket statement are "s3:GetBucketLocation", "s3:ListBucketMultipartUploads",
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// this shouldnot allow for ListBucket operations.
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{"s3:ListBucket", getWriteOnlyBucketStatement(bucketName, objectPrefix), false},
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// Cases for testing ListBucket access for different Object level access permissions (Test cases 16-18).
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// Any of the Object level access permissions shouldn't allow for ListBucket operation on an Anonymous/unsigned request.
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{"s3:ListBucket", getReadOnlyObjectStatement(bucketName, objectPrefix), false},
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{"s3:ListBucket", getReadWriteObjectStatement(bucketName, objectPrefix), false},
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{"s3:ListBucket", getWriteOnlyObjectStatement(bucketName, objectPrefix), false},
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// s3:DeleteObject is the action necessary to be present in the bucket policy to allow
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// deleting/removal of objects inside a given bucket for an Anonymous/unsigned request.
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// Cases for testing DeleteObject access for different Bucket level access permissions (Test cases 19-21).
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// Any of the Bucket level access permissions shouldn't allow for DeleteObject operation on an Anonymous/unsigned request.
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{"s3:DeleteObject", getReadOnlyBucketStatement(bucketName, objectPrefix), false},
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{"s3:DeleteObject", getReadWriteBucketStatement(bucketName, objectPrefix), false},
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{"s3:DeleteObject", getWriteOnlyBucketStatement(bucketName, objectPrefix), false},
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// Cases for testing DeleteObject access for different Object level access permissions (Test cases 22).
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// read-only bucket policy is expected to not allow Delete Object operation on an anonymous request.
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{"s3:DeleteObject", getReadOnlyObjectStatement(bucketName, objectPrefix), false},
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// read-write bucket policy is expected to allow Delete Bucket operation on an anonymous request (Test cases 23).
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{"s3:DeleteObject", getReadWriteObjectStatement(bucketName, objectPrefix), true},
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// write-only bucket policy is expected to allow Delete Object operation on an anonymous request (Test cases 24).
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{"s3:DeleteObject", getWriteOnlyObjectStatement(bucketName, objectPrefix), true},
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// s3:AbortMultipartUpload is the action necessary to be present in the bucket policy to allow
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// cancelling or abortion of an already initiated multipart upload operation for an Anonymous/unsigned request.
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// Cases for testing AbortMultipartUpload access for different Bucket level access permissions (Test cases 25-27).
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// Any of the Bucket level access permissions shouldn't allow for AbortMultipartUpload operation on an Anonymous/unsigned request.
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{"s3:AbortMultipartUpload", getReadOnlyBucketStatement(bucketName, objectPrefix), false},
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{"s3:AbortMultipartUpload", getReadWriteBucketStatement(bucketName, objectPrefix), false},
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{"s3:AbortMultipartUpload", getWriteOnlyBucketStatement(bucketName, objectPrefix), false},
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// Cases for testing AbortMultipartUpload access for different Object level access permissions.
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// read-only object policy is expected to not allow AbortMultipartUpload operation on an anonymous request (Test case 28).
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{"s3:AbortMultipartUpload", getReadOnlyObjectStatement(bucketName, objectPrefix), false},
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// read-write object policy is expected to allow AbortMultipartUpload operation on an anonymous request (Test case 29).
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{"s3:AbortMultipartUpload", getReadWriteObjectStatement(bucketName, objectPrefix), true},
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// write-only object policy is expected to allow AbortMultipartUpload operation on an anonymous request (Test case 30).
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{"s3:AbortMultipartUpload", getWriteOnlyObjectStatement(bucketName, objectPrefix), true},
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// s3:PutObject is the action necessary to be present in the bucket policy to allow
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// uploading of an object for an Anonymous/unsigned request.
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// Cases for testing PutObject access for different Bucket level access permissions (Test cases 31-33).
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// Any of the Bucket level access permissions shouldn't allow for PutObject operation on an Anonymous/unsigned request.
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{"s3:PutObject", getReadOnlyBucketStatement(bucketName, objectPrefix), false},
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{"s3:PutObject", getReadWriteBucketStatement(bucketName, objectPrefix), false},
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{"s3:PutObject", getWriteOnlyBucketStatement(bucketName, objectPrefix), false},
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// Cases for testing PutObject access for different Object level access permissions.
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// read-only object policy is expected to not allow PutObject operation on an anonymous request (Test case 34).
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{"s3:PutObject", getReadOnlyObjectStatement(bucketName, objectPrefix), false},
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// read-write object policy is expected to allow PutObject operation on an anonymous request (Test case 35).
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{"s3:PutObject", getReadWriteObjectStatement(bucketName, objectPrefix), true},
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// write-only object policy is expected to allow PutObject operation on an anonymous request (Test case 36).
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{"s3:PutObject", getWriteOnlyObjectStatement(bucketName, objectPrefix), true},
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// s3:GetObject is the action necessary to be present in the bucket policy to allow
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// downloading of an object for an Anonymous/unsigned request.
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// Cases for testing GetObject access for different Bucket level access permissions (Test cases 37-39).
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// Any of the Bucket level access permissions shouldn't allow for GetObject operation on an Anonymous/unsigned request.
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{"s3:GetObject", getReadOnlyBucketStatement(bucketName, objectPrefix), false},
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{"s3:GetObject", getReadWriteBucketStatement(bucketName, objectPrefix), false},
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{"s3:GetObject", getWriteOnlyBucketStatement(bucketName, objectPrefix), false},
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// Cases for testing GetObject access for different Object level access permissions.
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// read-only bucket policy is expected to allow downloading of an Object on an anonymous request (Test case 40).
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{"s3:GetObject", getReadOnlyObjectStatement(bucketName, objectPrefix), true},
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// read-write bucket policy is expected to allow downloading of an Object on an anonymous request (Test case 41).
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{"s3:GetObject", getReadWriteObjectStatement(bucketName, objectPrefix), true},
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// write-only bucket policy is expected to not allow downloading of an Object on an anonymous request (Test case 42).
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{"s3:GetObject", getWriteOnlyObjectStatement(bucketName, objectPrefix), false},
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// s3:ListMultipartUploadParts is the action necessary to be present in the bucket policy to allow
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// Listing of uploaded parts for an Anonymous/unsigned request.
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// Any of the Bucket level access permissions shouldn't allow for ListMultipartUploadParts operation on an Anonymous/unsigned request.
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// read-only bucket policy is expected to not allow ListMultipartUploadParts operation on an anonymous request (Test cases 43-45).
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{"s3:ListMultipartUploadParts", getReadOnlyBucketStatement(bucketName, objectPrefix), false},
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{"s3:ListMultipartUploadParts", getReadWriteBucketStatement(bucketName, objectPrefix), false},
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{"s3:ListMultipartUploadParts", getWriteOnlyBucketStatement(bucketName, objectPrefix), false},
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// read-only object policy is expected to not allow ListMultipartUploadParts operation on an anonymous request (Test case 46).
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{"s3:ListMultipartUploadParts", getReadOnlyObjectStatement(bucketName, objectPrefix), false},
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// read-write object policy is expected to allow ListMultipartUploadParts operation on an anonymous request (Test case 47).
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{"s3:ListMultipartUploadParts", getReadWriteObjectStatement(bucketName, objectPrefix), true},
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// write-only object policy is expected to allow ListMultipartUploadParts operation on an anonymous request (Test case 48).
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{"s3:ListMultipartUploadParts", getWriteOnlyObjectStatement(bucketName, objectPrefix), true},
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}
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for i, testCase := range testCases {
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actualResult := bucketPolicyActionMatch(testCase.action, testCase.statement)
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if testCase.expectedResult != actualResult {
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t.Errorf("Test %d: Expected the result to be `%v`, but instead found it to be `%v`", i+1, testCase.expectedResult, actualResult)
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}
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}
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}
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