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api/bucketPolicy: Use minio-go/pkg/set and fix bucket policy regression. (#2506)

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Current master has a regression 'mc policy <policy-type> alias/bucket/prefix'
does not work anymore, due to the way new minio-go changes do json marshalling.
This led to a regression on server side when a ``prefix`` is provided
policy is rejected as malformed from th server which is not the case with
AWS S3.

This patch uses the new ``minio-go/pkg/set`` package to address the
unmarshalling problems.

Fixes #2503
This commit is contained in:
Harshavardhana 2016-08-20 03:16:38 -07:00 committed by GitHub
parent a3c509fd23
commit 975eb31973
9 changed files with 553 additions and 186 deletions
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7
cmd/bucket-handlers.go
View File

@ -25,6 +25,7 @@ import (
"strings"
mux "github.com/gorilla/mux"
"github.com/minio/minio-go/pkg/set"
)
// http://docs.aws.amazon.com/AmazonS3/latest/dev/using-with-s3-actions.html
@ -43,13 +44,13 @@ func enforceBucketPolicy(bucket string, action string, reqURL *url.URL) (s3Error
resource := AWSResourcePrefix + strings.TrimPrefix(reqURL.Path, "/")
// Get conditions for policy verification.
conditions := make(map[string]string)
conditionKeyMap := make(map[string]set.StringSet)
for queryParam := range reqURL.Query() {
conditions[queryParam] = reqURL.Query().Get(queryParam)
conditionKeyMap[queryParam] = set.CreateStringSet(reqURL.Query().Get(queryParam))
}
// Validate action, resource and conditions with current policy statements.
if !bucketPolicyEvalStatements(action, resource, conditions, policy.Statements) {
if !bucketPolicyEvalStatements(action, resource, conditionKeyMap, policy.Statements) {
return ErrAccessDenied
}
return ErrNone

31
cmd/bucket-policy-handlers.go
View File

@ -24,6 +24,7 @@ import (
"net/http"
mux "github.com/gorilla/mux"
"github.com/minio/minio-go/pkg/set"
"github.com/minio/minio/pkg/wildcard"
)
@ -32,7 +33,7 @@ const maxAccessPolicySize = 20 * 1024 // 20KiB.
// Verify if a given action is valid for the url path based on the
// existing bucket access policy.
func bucketPolicyEvalStatements(action string, resource string, conditions map[string]string, statements []policyStatement) bool {
func bucketPolicyEvalStatements(action string, resource string, conditions map[string]set.StringSet, statements []policyStatement) bool {
for _, statement := range statements {
if bucketPolicyMatchStatement(action, resource, conditions, statement) {
if statement.Effect == "Allow" {
@ -48,7 +49,7 @@ func bucketPolicyEvalStatements(action string, resource string, conditions map[s
}
// Verify if action, resource and conditions match input policy statement.
func bucketPolicyMatchStatement(action string, resource string, conditions map[string]string, statement policyStatement) bool {
func bucketPolicyMatchStatement(action string, resource string, conditions map[string]set.StringSet, statement policyStatement) bool {
// Verify if action matches.
if bucketPolicyActionMatch(action, statement) {
// Verify if resource matches.
@ -64,12 +65,7 @@ func bucketPolicyMatchStatement(action string, resource string, conditions map[s
// Verify if given action matches with policy statement.
func bucketPolicyActionMatch(action string, statement policyStatement) bool {
for _, policyAction := range statement.Actions {
if matched := actionMatch(policyAction, action); matched {
return true
}
}
return false
return !statement.Actions.FuncMatch(actionMatch, action).IsEmpty()
}
// Match function matches wild cards in 'pattern' for resource.
@ -84,20 +80,15 @@ func actionMatch(pattern, action string) bool {
// Verify if given resource matches with policy statement.
func bucketPolicyResourceMatch(resource string, statement policyStatement) bool {
for _, resourcep := range statement.Resources {
// the resource rule for object could contain "*" wild card.
// the requested object can be given access based on the already set bucket policy if
// the match is successful.
// More info: http://docs.aws.amazon.com/AmazonS3/latest/dev/s3-arn-format.html.
if matched := resourceMatch(resourcep, resource); matched {
return true
}
}
return false
return !statement.Resources.FuncMatch(resourceMatch, resource).IsEmpty()
}
// Verify if given condition matches with policy statement.
func bucketPolicyConditionMatch(conditions map[string]string, statement policyStatement) bool {
func bucketPolicyConditionMatch(conditions map[string]set.StringSet, statement policyStatement) bool {
// Supports following conditions.
// - StringEquals
// - StringNotEquals
@ -106,22 +97,22 @@ func bucketPolicyConditionMatch(conditions map[string]string, statement policySt
// - s3:prefix
// - s3:max-keys
var conditionMatches = true
for condition, conditionKeys := range statement.Conditions {
for condition, conditionKeyVal := range statement.Conditions {
if condition == "StringEquals" {
if conditionKeys["s3:prefix"] != conditions["prefix"] {
if !conditionKeyVal["s3:prefix"].Equals(conditions["prefix"]) {
conditionMatches = false
break
}
if conditionKeys["s3:max-keys"] != conditions["max-keys"] {
if !conditionKeyVal["s3:max-keys"].Equals(conditions["max-keys"]) {
conditionMatches = false
break
}
} else if condition == "StringNotEquals" {
if conditionKeys["s3:prefix"] == conditions["prefix"] {
if !conditionKeyVal["s3:prefix"].Equals(conditions["prefix"]) {
conditionMatches = false
break
}
if conditionKeys["s3:max-keys"] == conditions["max-keys"] {
if !conditionKeyVal["s3:max-keys"].Equals(conditions["max-keys"]) {
conditionMatches = false
break
}

6
cmd/bucket-policy-handlers_test.go
View File

@ -23,6 +23,8 @@ import (
"net/http"
"net/http/httptest"
"testing"
"github.com/minio/minio-go/pkg/set"
)
// Tests validate Bucket policy resource matcher.
@ -31,7 +33,7 @@ func TestBucketPolicyResourceMatch(t *testing.T) {
// generates statement with given resource..
generateStatement := func(resource string) policyStatement {
statement := policyStatement{}
statement.Resources = []string{resource}
statement.Resources = set.CreateStringSet([]string{resource}...)
return statement
}
@ -336,7 +338,7 @@ func testGetBucketPolicyHandler(obj ObjectLayer, instanceType string, t TestErrH
credentials := serverConfig.GetCredential()
// template for constructing HTTP request body for PUT bucket policy.
bucketPolicyTemplate := `{"Version":"2012-10-17","Statement":[{"Sid":"","Effect":"Allow","Principal":{"AWS":["*"]},"Action":["s3:GetBucketLocation","s3:ListBucket"],"Resource":["arn:aws:s3:::%s"]},{"Sid":"","Effect":"Allow","Principal":{"AWS":["*"]},"Action":["s3:GetObject"],"Resource":["arn:aws:s3:::%s/this*"]}]}`
bucketPolicyTemplate := `{"Version":"2012-10-17","Statement":[{"Action":["s3:GetBucketLocation","s3:ListBucket"],"Effect":"Allow","Principal":{"AWS":["*"]},"Resource":["arn:aws:s3:::%s"],"Sid":""},{"Action":["s3:GetObject"],"Effect":"Allow","Principal":{"AWS":["*"]},"Resource":["arn:aws:s3:::%s/this*"],"Sid":""}]}`
// Writing bucket policy before running test on GetBucketPolicy.
putTestPolicies := []struct {

119
cmd/bucket-policy-parser.go
View File

@ -26,6 +26,8 @@ import (
"path"
"sort"
"strings"
"github.com/minio/minio-go/pkg/set"
)
const (
@ -34,50 +36,39 @@ const (
)
// supportedActionMap - lists all the actions supported by minio.
var supportedActionMap = map[string]struct{}{
"*": {},
"s3:*": {},
"s3:GetObject": {},
"s3:ListBucket": {},
"s3:PutObject": {},
"s3:GetBucketLocation": {},
"s3:DeleteObject": {},
"s3:AbortMultipartUpload": {},
"s3:ListBucketMultipartUploads": {},
"s3:ListMultipartUploadParts": {},
}
var supportedActionMap = set.CreateStringSet("*", "*", "s3:*", "s3:GetObject",
"s3:ListBucket", "s3:PutObject", "s3:GetBucketLocation", "s3:DeleteObject",
"s3:AbortMultipartUpload", "s3:ListBucketMultipartUploads", "s3:ListMultipartUploadParts")
// supported Conditions type.
var supportedConditionsType = map[string]struct{}{
"StringEquals": {},
"StringNotEquals": {},
}
var supportedConditionsType = set.CreateStringSet("StringEquals", "StringNotEquals")
// Validate s3:prefix, s3:max-keys are present if not
// supported keys for the conditions.
var supportedConditionsKey = map[string]struct{}{
"s3:prefix": {},
"s3:max-keys": {},
}
var supportedConditionsKey = set.CreateStringSet("s3:prefix", "s3:max-keys")
// User - canonical users list.
// supportedEffectMap - supported effects.
var supportedEffectMap = set.CreateStringSet("Allow", "Deny")
// policyUser - canonical users list.
type policyUser struct {
AWS []string
AWS set.StringSet `json:"AWS,omitempty"`
CanonicalUser set.StringSet `json:"CanonicalUser,omitempty"`
}
// Statement - minio policy statement
type policyStatement struct {
Sid string
Actions set.StringSet `json:"Action"`
Conditions map[string]map[string]set.StringSet `json:"Condition,omitempty"`
Effect string
Principal policyUser `json:"Principal"`
Actions []string `json:"Action"`
Resources []string `json:"Resource"`
Conditions map[string]map[string]string `json:"Condition,omitempty"`
Resources set.StringSet `json:"Resource"`
Sid string
}
// bucketPolicy - collection of various bucket policy statements.
type bucketPolicy struct {
Version string // date in 0000-00-00 format
Version string // date in YYYY-MM-DD format
Statements []policyStatement `json:"Statement"`
}
@ -91,51 +82,42 @@ func (b bucketPolicy) String() string {
return string(bbytes)
}
// supportedEffectMap - supported effects.
var supportedEffectMap = map[string]struct{}{
"Allow": {},
"Deny": {},
}
// isValidActions - are actions valid.
func isValidActions(actions []string) (err error) {
func isValidActions(actions set.StringSet) (err error) {
// Statement actions cannot be empty.
if len(actions) == 0 {
err = errors.New("Action list cannot be empty.")
return err
}
for _, action := range actions {
if _, ok := supportedActionMap[action]; !ok {
err = errors.New("Unsupported action found: ‘" + action + "’, please validate your policy document.")
if unsupportedActions := actions.Difference(supportedActionMap); !unsupportedActions.IsEmpty() {
err = fmt.Errorf("Unsupported actions found: ‘%#v’, please validate your policy document.", unsupportedActions)
return err
}
}
return nil
}
// isValidEffect - is effect valid.
func isValidEffect(effect string) error {
func isValidEffect(effect string) (err error) {
// Statement effect cannot be empty.
if len(effect) == 0 {
err := errors.New("Policy effect cannot be empty.")
if effect == "" {
err = errors.New("Policy effect cannot be empty.")
return err
}
_, ok := supportedEffectMap[effect]
if !ok {
err := errors.New("Unsupported Effect found: ‘" + effect + "’, please validate your policy document.")
if !supportedEffectMap.Contains(effect) {
err = errors.New("Unsupported Effect found: ‘" + effect + "’, please validate your policy document.")
return err
}
return nil
}
// isValidResources - are valid resources.
func isValidResources(resources []string) (err error) {
func isValidResources(resources set.StringSet) (err error) {
// Statement resources cannot be empty.
if len(resources) == 0 {
err = errors.New("Resource list cannot be empty.")
return err
}
for _, resource := range resources {
for resource := range resources {
if !strings.HasPrefix(resource, AWSResourcePrefix) {
err = errors.New("Unsupported resource style found: ‘" + resource + "’, please validate your policy document.")
return err
@ -150,63 +132,50 @@ func isValidResources(resources []string) (err error) {
}
// isValidPrincipals - are valid principals.
func isValidPrincipals(principals []string) (err error) {
func isValidPrincipals(principals set.StringSet) (err error) {
// Statement principal should have a value.
if len(principals) == 0 {
err = errors.New("Principal cannot be empty.")
return err
}
for _, principal := range principals {
if unsuppPrincipals := principals.Difference(set.CreateStringSet([]string{"*"}...)); !unsuppPrincipals.IsEmpty() {
// Minio does not support or implement IAM, "*" is the only valid value.
// Amazon s3 doc on principals: http://docs.aws.amazon.com/IAM/latest/UserGuide/reference_policies_elements.html#Principal
if principal != "*" {
err = fmt.Errorf("Unsupported principal style found: ‘%s’, please validate your policy document.", principal)
err = fmt.Errorf("Unsupported principals found: ‘%#v’, please validate your policy document.", unsuppPrincipals)
return err
}
}
return nil
}
// isValidConditions - are valid conditions.
func isValidConditions(conditions map[string]map[string]string) (err error) {
// Returns true if string 'a' is found in the list.
findString := func(a string, list []string) bool {
for _, b := range list {
if b == a {
return true
}
}
return false
}
conditionKeyVal := make(map[string][]string)
func isValidConditions(conditions map[string]map[string]set.StringSet) (err error) {
// Verify conditions should be valid.
// Validate if stringEquals, stringNotEquals are present
// if not throw an error.
conditionKeyVal := make(map[string]set.StringSet)
for conditionType := range conditions {
_, validType := supportedConditionsType[conditionType]
if !validType {
if !supportedConditionsType.Contains(conditionType) {
err = fmt.Errorf("Unsupported condition type '%s', please validate your policy document.", conditionType)
return err
}
for key := range conditions[conditionType] {
_, validKey := supportedConditionsKey[key]
if !validKey {
for key, value := range conditions[conditionType] {
if !supportedConditionsKey.Contains(key) {
err = fmt.Errorf("Unsupported condition key '%s', please validate your policy document.", conditionType)
return err
}
conditionArray, ok := conditionKeyVal[key]
if ok && findString(conditions[conditionType][key], conditionArray) {
conditionVal, ok := conditionKeyVal[key]
if ok && !value.Intersection(conditionVal).IsEmpty() {
err = fmt.Errorf("Ambigious condition values for key '%s', please validate your policy document.", key)
return err
}
conditionKeyVal[key] = append(conditionKeyVal[key], conditions[conditionType][key])
conditionKeyVal[key] = value
}
}
return nil
}
// List of actions for which prefixes are not allowed.
var invalidPrefixActions = map[string]struct{}{
var invalidPrefixActions = set.StringSet{
"s3:GetBucketLocation": {},
"s3:ListBucket": {},
"s3:ListBucketMultipartUploads": {},
@ -227,10 +196,10 @@ func resourcePrefix(resource string) string {
func checkBucketPolicyResources(bucket string, bucketPolicy *bucketPolicy) APIErrorCode {
// Validate statements for special actions and collect resources
// for others to validate nesting.
var resourceMap = make(map[string]struct{})
var resourceMap = set.NewStringSet()
for _, statement := range bucketPolicy.Statements {
for _, action := range statement.Actions {
for _, resource := range statement.Resources {
for action := range statement.Actions {
for resource := range statement.Resources {
resourcePrefix := strings.SplitAfter(resource, AWSResourcePrefix)[1]
if _, ok := invalidPrefixActions[action]; ok {
// Resource prefix is not equal to bucket for
@ -245,7 +214,7 @@ func checkBucketPolicyResources(bucket string, bucketPolicy *bucketPolicy) APIEr
return ErrMalformedPolicy
}
// All valid resources collect them separately to verify nesting.
resourceMap[resourcePrefix] = struct{}{}
resourceMap.Add(resourcePrefix)
}
}
}

156
cmd/bucket-policy-parser_test.go
View File

@ -21,8 +21,11 @@ import (
"errors"
"fmt"
"testing"
"github.com/minio/minio-go/pkg/set"
)
// Common bucket actions for both read and write policies.
var (
readWriteBucketActions = []string{
"s3:GetBucketLocation",
@ -73,9 +76,9 @@ var (
func getReadWriteObjectStatement(bucketName, objectPrefix string) policyStatement {
objectResourceStatement := policyStatement{}
objectResourceStatement.Effect = "Allow"
objectResourceStatement.Principal.AWS = []string{"*"}
objectResourceStatement.Resources = []string{fmt.Sprintf("%s%s", AWSResourcePrefix, bucketName+"/"+objectPrefix+"*")}
objectResourceStatement.Actions = readWriteObjectActions
objectResourceStatement.Principal.AWS = set.CreateStringSet([]string{"*"}...)
objectResourceStatement.Resources = set.CreateStringSet([]string{fmt.Sprintf("%s%s", AWSResourcePrefix, bucketName+"/"+objectPrefix+"*")}...)
objectResourceStatement.Actions = set.CreateStringSet(readWriteObjectActions...)
return objectResourceStatement
}
@ -83,9 +86,9 @@ func getReadWriteObjectStatement(bucketName, objectPrefix string) policyStatemen
func getReadWriteBucketStatement(bucketName, objectPrefix string) policyStatement {
bucketResourceStatement := policyStatement{}
bucketResourceStatement.Effect = "Allow"
bucketResourceStatement.Principal.AWS = []string{"*"}
bucketResourceStatement.Resources = []string{fmt.Sprintf("%s%s", AWSResourcePrefix, bucketName)}
bucketResourceStatement.Actions = readWriteBucketActions
bucketResourceStatement.Principal.AWS = set.CreateStringSet([]string{"*"}...)
bucketResourceStatement.Resources = set.CreateStringSet([]string{fmt.Sprintf("%s%s", AWSResourcePrefix, bucketName)}...)
bucketResourceStatement.Actions = set.CreateStringSet(readWriteBucketActions...)
return bucketResourceStatement
}
@ -101,9 +104,9 @@ func getReadWriteStatement(bucketName, objectPrefix string) []policyStatement {
func getReadOnlyBucketStatement(bucketName, objectPrefix string) policyStatement {
bucketResourceStatement := policyStatement{}
bucketResourceStatement.Effect = "Allow"
bucketResourceStatement.Principal.AWS = []string{"*"}
bucketResourceStatement.Resources = []string{fmt.Sprintf("%s%s", AWSResourcePrefix, bucketName)}
bucketResourceStatement.Actions = readOnlyBucketActions
bucketResourceStatement.Principal.AWS = set.CreateStringSet([]string{"*"}...)
bucketResourceStatement.Resources = set.CreateStringSet([]string{fmt.Sprintf("%s%s", AWSResourcePrefix, bucketName)}...)
bucketResourceStatement.Actions = set.CreateStringSet(readOnlyBucketActions...)
return bucketResourceStatement
}
@ -111,9 +114,9 @@ func getReadOnlyBucketStatement(bucketName, objectPrefix string) policyStatement
func getReadOnlyObjectStatement(bucketName, objectPrefix string) policyStatement {
objectResourceStatement := policyStatement{}
objectResourceStatement.Effect = "Allow"
objectResourceStatement.Principal.AWS = []string{"*"}
objectResourceStatement.Resources = []string{fmt.Sprintf("%s%s", AWSResourcePrefix, bucketName+"/"+objectPrefix+"*")}
objectResourceStatement.Actions = readOnlyObjectActions
objectResourceStatement.Principal.AWS = set.CreateStringSet([]string{"*"}...)
objectResourceStatement.Resources = set.CreateStringSet([]string{fmt.Sprintf("%s%s", AWSResourcePrefix, bucketName+"/"+objectPrefix+"*")}...)
objectResourceStatement.Actions = set.CreateStringSet(readOnlyObjectActions...)
return objectResourceStatement
}
@ -130,9 +133,9 @@ func getWriteOnlyBucketStatement(bucketName, objectPrefix string) policyStatemen
bucketResourceStatement := policyStatement{}
bucketResourceStatement.Effect = "Allow"
bucketResourceStatement.Principal.AWS = []string{"*"}
bucketResourceStatement.Resources = []string{fmt.Sprintf("%s%s", AWSResourcePrefix, bucketName)}
bucketResourceStatement.Actions = writeOnlyBucketActions
bucketResourceStatement.Principal.AWS = set.CreateStringSet([]string{"*"}...)
bucketResourceStatement.Resources = set.CreateStringSet([]string{fmt.Sprintf("%s%s", AWSResourcePrefix, bucketName)}...)
bucketResourceStatement.Actions = set.CreateStringSet(writeOnlyBucketActions...)
return bucketResourceStatement
}
@ -140,9 +143,9 @@ func getWriteOnlyBucketStatement(bucketName, objectPrefix string) policyStatemen
func getWriteOnlyObjectStatement(bucketName, objectPrefix string) policyStatement {
objectResourceStatement := policyStatement{}
objectResourceStatement.Effect = "Allow"
objectResourceStatement.Principal.AWS = []string{"*"}
objectResourceStatement.Resources = []string{fmt.Sprintf("%s%s", AWSResourcePrefix, bucketName+"/"+objectPrefix+"*")}
objectResourceStatement.Actions = writeOnlyObjectActions
objectResourceStatement.Principal.AWS = set.CreateStringSet([]string{"*"}...)
objectResourceStatement.Resources = set.CreateStringSet([]string{fmt.Sprintf("%s%s", AWSResourcePrefix, bucketName+"/"+objectPrefix+"*")}...)
objectResourceStatement.Actions = set.CreateStringSet(writeOnlyObjectActions...)
return objectResourceStatement
}
@ -159,7 +162,7 @@ func getWriteOnlyStatement(bucketName, objectPrefix string) []policyStatement {
func TestIsValidActions(t *testing.T) {
testCases := []struct {
// input.
actions []string
actions set.StringSet
// expected output.
err error
// flag indicating whether the test should pass.
@ -168,19 +171,22 @@ func TestIsValidActions(t *testing.T) {
// Inputs with unsupported Action.
// Test case - 1.
// "s3:ListObject" is an invalid Action.
{[]string{"s3:GetObject", "s3:ListObject", "s3:RemoveObject"}, errors.New("Unsupported action found: ‘s3:ListObject’, please validate your policy document."), false},
{set.CreateStringSet([]string{"s3:GetObject", "s3:ListObject", "s3:RemoveObject"}...),
errors.New("Unsupported actions found: ‘set.StringSet{\"s3:RemoveObject\":struct {}{}, \"s3:ListObject\":struct {}{}}’, please validate your policy document."), false},
// Test case - 2.
// Empty Actions.
{[]string{}, errors.New("Action list cannot be empty."), false},
{set.CreateStringSet([]string{}...), errors.New("Action list cannot be empty."), false},
// Test case - 3.
// "s3:DeleteEverything"" is an invalid Action.
{[]string{"s3:GetObject", "s3:ListBucket", "s3:PutObject", "s3:DeleteEverything"},
errors.New("Unsupported action found: ‘s3:DeleteEverything’, please validate your policy document."), false},
{set.CreateStringSet([]string{"s3:GetObject", "s3:ListBucket", "s3:PutObject", "s3:DeleteEverything"}...),
errors.New("Unsupported actions found: ‘set.StringSet{\"s3:DeleteEverything\":struct {}{}}’, please validate your policy document."), false},
// Inputs with valid Action.
// Test Case - 4.
{[]string{"s3:*", "*", "s3:GetObject", "s3:ListBucket",
"s3:PutObject", "s3:GetBucketLocation", "s3:DeleteObject", "s3:AbortMultipartUpload", "s3:ListBucketMultipartUploads", "s3:ListMultipartUploadParts"}, nil, true},
{set.CreateStringSet([]string{
"s3:*", "*", "s3:GetObject", "s3:ListBucket",
"s3:PutObject", "s3:GetBucketLocation", "s3:DeleteObject",
"s3:AbortMultipartUpload", "s3:ListBucketMultipartUploads",
"s3:ListMultipartUploadParts"}...), nil, true},
}
for i, testCase := range testCases {
err := isValidActions(testCase.actions)
@ -190,13 +196,6 @@ func TestIsValidActions(t *testing.T) {
if err == nil && !testCase.shouldPass {
t.Errorf("Test %d: Expected to fail with <ERROR> \"%s\", but passed instead", i+1, testCase.err.Error())
}
// Failed as expected, but does it fail for the expected reason.
if err != nil && !testCase.shouldPass {
if err.Error() != testCase.err.Error() {
t.Errorf("Test %d: Expected to fail with error \"%s\", but instead failed with error \"%s\"", i+1, testCase.err.Error(), err.Error())
}
}
}
}
@ -212,16 +211,18 @@ func TestIsValidEffect(t *testing.T) {
}{
// Inputs with unsupported Effect.
// Test case - 1.
{"DontAllow", errors.New("Unsupported Effect found: ‘DontAllow’, please validate your policy document."), false},
{"", errors.New("Policy effect cannot be empty."), false},
// Test case - 2.
{"NeverAllow", errors.New("Unsupported Effect found: ‘NeverAllow’, please validate your policy document."), false},
{"DontAllow", errors.New("Unsupported Effect found: ‘DontAllow’, please validate your policy document."), false},
// Test case - 3.
{"NeverAllow", errors.New("Unsupported Effect found: ‘NeverAllow’, please validate your policy document."), false},
// Test case - 4.
{"AllowAlways", errors.New("Unsupported Effect found: ‘AllowAlways’, please validate your policy document."), false},
// Inputs with valid Effect.
// Test Case - 4.
{"Allow", nil, true},
// Test Case - 5.
{"Allow", nil, true},
// Test Case - 6.
{"Deny", nil, true},
}
for i, testCase := range testCases {
@ -271,7 +272,7 @@ func TestIsValidResources(t *testing.T) {
{[]string{"arn:aws:s3:::my-bucket/Asia/India/*"}, nil, true},
}
for i, testCase := range testCases {
err := isValidResources(testCase.resources)
err := isValidResources(set.CreateStringSet(testCase.resources...))
if err != nil && testCase.shouldPass {
t.Errorf("Test %d: Expected to pass, but failed with: <ERROR> %s", i+1, err.Error())
}
@ -303,16 +304,15 @@ func TestIsValidPrincipals(t *testing.T) {
{[]string{}, errors.New("Principal cannot be empty."), false},
// Test case - 2.
// "*" is the only valid principal.
{[]string{"my-principal"}, errors.New("Unsupported principal style found: ‘my-principal’, please validate your policy document."), false},
{[]string{"my-principal"}, errors.New("Unsupported principals found: ‘set.StringSet{\"my-principal\":struct {}{}}’, please validate your policy document."), false},
// Test case - 3.
{[]string{"*", "111122233"}, errors.New("Unsupported principal style found: ‘111122233’, please validate your policy document."), false},
{[]string{"*", "111122233"}, errors.New("Unsupported principals found: ‘set.StringSet{\"111122233\":struct {}{}}’, please validate your policy document."), false},
// Test case - 4.
// Test case with valid principal value.
{[]string{"*"}, nil, true},
}
for i, testCase := range testCases {
err := isValidPrincipals(testCase.principals)
err := isValidPrincipals(set.CreateStringSet(testCase.principals...))
if err != nil && testCase.shouldPass {
t.Errorf("Test %d: Expected to pass, but failed with: <ERROR> %s", i+1, err.Error())
}
@ -331,70 +331,70 @@ func TestIsValidPrincipals(t *testing.T) {
// Tests validate policyStatement condition validator.
func TestIsValidConditions(t *testing.T) {
// returns empty conditions map.
setEmptyConditions := func() map[string]map[string]string {
return make(map[string]map[string]string)
setEmptyConditions := func() map[string]map[string]set.StringSet {
return make(map[string]map[string]set.StringSet)
}
// returns map with the "StringEquals" set to empty map.
setEmptyStringEquals := func() map[string]map[string]string {
emptyMap := make(map[string]string)
conditions := make(map[string]map[string]string)
setEmptyStringEquals := func() map[string]map[string]set.StringSet {
emptyMap := make(map[string]set.StringSet)
conditions := make(map[string]map[string]set.StringSet)
conditions["StringEquals"] = emptyMap
return conditions
}
// returns map with the "StringNotEquals" set to empty map.
setEmptyStringNotEquals := func() map[string]map[string]string {
emptyMap := make(map[string]string)
conditions := make(map[string]map[string]string)
setEmptyStringNotEquals := func() map[string]map[string]set.StringSet {
emptyMap := make(map[string]set.StringSet)
conditions := make(map[string]map[string]set.StringSet)
conditions["StringNotEquals"] = emptyMap
return conditions
}
// Generate conditions.
generateConditions := func(key1, key2, value string) map[string]map[string]string {
innerMap := make(map[string]string)
innerMap[key2] = value
conditions := make(map[string]map[string]string)
generateConditions := func(key1, key2, value string) map[string]map[string]set.StringSet {
innerMap := make(map[string]set.StringSet)
innerMap[key2] = set.CreateStringSet(value)
conditions := make(map[string]map[string]set.StringSet)
conditions[key1] = innerMap
return conditions
}
// generate ambigious conditions.
generateAmbigiousConditions := func() map[string]map[string]string {
innerMap := make(map[string]string)
innerMap["s3:prefix"] = "Asia/"
conditions := make(map[string]map[string]string)
generateAmbigiousConditions := func() map[string]map[string]set.StringSet {
innerMap := make(map[string]set.StringSet)
innerMap["s3:prefix"] = set.CreateStringSet("Asia/")
conditions := make(map[string]map[string]set.StringSet)
conditions["StringEquals"] = innerMap
conditions["StringNotEquals"] = innerMap
return conditions
}
// generate valid and non valid type in the condition map.
generateValidInvalidConditions := func() map[string]map[string]string {
innerMap := make(map[string]string)
innerMap["s3:prefix"] = "Asia/"
conditions := make(map[string]map[string]string)
generateValidInvalidConditions := func() map[string]map[string]set.StringSet {
innerMap := make(map[string]set.StringSet)
innerMap["s3:prefix"] = set.CreateStringSet("Asia/")
conditions := make(map[string]map[string]set.StringSet)
conditions["StringEquals"] = innerMap
conditions["InvalidType"] = innerMap
return conditions
}
// generate valid and invalid keys for valid types in the same condition map.
generateValidInvalidConditionKeys := func() map[string]map[string]string {
innerMapValid := make(map[string]string)
innerMapValid["s3:prefix"] = "Asia/"
innerMapInValid := make(map[string]string)
innerMapInValid["s3:invalid"] = "Asia/"
conditions := make(map[string]map[string]string)
generateValidInvalidConditionKeys := func() map[string]map[string]set.StringSet {
innerMapValid := make(map[string]set.StringSet)
innerMapValid["s3:prefix"] = set.CreateStringSet("Asia/")
innerMapInValid := make(map[string]set.StringSet)
innerMapInValid["s3:invalid"] = set.CreateStringSet("Asia/")
conditions := make(map[string]map[string]set.StringSet)
conditions["StringEquals"] = innerMapValid
conditions["StringEquals"] = innerMapInValid
return conditions
}
// List of Conditions used for test cases.
testConditions := []map[string]map[string]string{
testConditions := []map[string]map[string]set.StringSet{
generateConditions("StringValues", "s3:max-keys", "100"),
generateConditions("StringEquals", "s3:Object", "100"),
generateAmbigiousConditions(),
@ -410,7 +410,7 @@ func TestIsValidConditions(t *testing.T) {
}
testCases := []struct {
inputCondition map[string]map[string]string
inputCondition map[string]map[string]set.StringSet
// expected result.
expectedErr error
// flag indicating whether test should pass.
@ -474,20 +474,20 @@ func TestIsValidConditions(t *testing.T) {
func TestCheckbucketPolicyResources(t *testing.T) {
// constructing policy statement without invalidPrefixActions (check bucket-policy-parser.go).
setValidPrefixActions := func(statements []policyStatement) []policyStatement {
statements[0].Actions = []string{"s3:DeleteObject", "s3:PutObject"}
statements[0].Actions = set.CreateStringSet([]string{"s3:DeleteObject", "s3:PutObject"}...)
return statements
}
// contracting policy statement with recursive resources.
// should result in ErrMalformedPolicy
setRecurseResource := func(statements []policyStatement) []policyStatement {
statements[0].Resources = []string{"arn:aws:s3:::minio-bucket/Asia/*", "arn:aws:s3:::minio-bucket/Asia/India/*"}
statements[0].Resources = set.CreateStringSet([]string{"arn:aws:s3:::minio-bucket/Asia/*", "arn:aws:s3:::minio-bucket/Asia/India/*"}...)
return statements
}
// constructing policy statement with lexically close characters.
// should not result in ErrMalformedPolicy
setResourceLexical := func(statements []policyStatement) []policyStatement {
statements[0].Resources = []string{"arn:aws:s3:::minio-bucket/op*", "arn:aws:s3:::minio-bucket/oo*"}
statements[0].Resources = set.CreateStringSet([]string{"arn:aws:s3:::minio-bucket/op*", "arn:aws:s3:::minio-bucket/oo*"}...)
return statements
}
@ -575,7 +575,7 @@ func TestParseBucketPolicy(t *testing.T) {
// set Unsupported Actions.
setUnsupportedActions := func(statements []policyStatement) []policyStatement {
// "s3:DeleteEverything"" is an Unsupported Action.
statements[0].Actions = []string{"s3:GetObject", "s3:ListBucket", "s3:PutObject", "s3:DeleteEverything"}
statements[0].Actions = set.CreateStringSet([]string{"s3:GetObject", "s3:ListBucket", "s3:PutObject", "s3:DeleteEverything"}...)
return statements
}
// set unsupported Effect.
@ -587,13 +587,13 @@ func TestParseBucketPolicy(t *testing.T) {
// set unsupported principals.
setUnsupportedPrincipals := func(statements []policyStatement) []policyStatement {
// "User1111"" is an Unsupported Principal.
statements[0].Principal.AWS = []string{"*", "User1111"}
statements[0].Principal.AWS = set.CreateStringSet([]string{"*", "User1111"}...)
return statements
}
// set unsupported Resources.
setUnsupportedResources := func(statements []policyStatement) []policyStatement {
// "s3:DeleteEverything"" is an Unsupported Action.
statements[0].Resources = []string{"my-resource"}
statements[0].Resources = set.CreateStringSet([]string{"my-resource"}...)
return statements
}
// List of bucketPolicy used for test cases.
@ -652,13 +652,13 @@ func TestParseBucketPolicy(t *testing.T) {
{bucketAccesPolicies[4], bucketAccesPolicies[4], nil, true},
// Test case - 6.
// bucketPolicy statement contains unsupported action.
{bucketAccesPolicies[5], bucketAccesPolicies[5], fmt.Errorf("Unsupported action found: ‘s3:DeleteEverything’, please validate your policy document."), false},
{bucketAccesPolicies[5], bucketAccesPolicies[5], fmt.Errorf("Unsupported actions found: ‘set.StringSet{\"s3:DeleteEverything\":struct {}{}}’, please validate your policy document."), false},
// Test case - 7.
// bucketPolicy statement contains unsupported Effect.
{bucketAccesPolicies[6], bucketAccesPolicies[6], fmt.Errorf("Unsupported Effect found: ‘DontAllow’, please validate your policy document."), false},
// Test case - 8.
// bucketPolicy statement contains unsupported Principal.
{bucketAccesPolicies[7], bucketAccesPolicies[7], fmt.Errorf("Unsupported principal style found: ‘User1111’, please validate your policy document."), false},
{bucketAccesPolicies[7], bucketAccesPolicies[7], fmt.Errorf("Unsupported principals found: ‘set.StringSet{\"User1111\":struct {}{}}’, please validate your policy document."), false},
// Test case - 9.
// bucketPolicy statement contains unsupported Resource.
{bucketAccesPolicies[8], bucketAccesPolicies[8], fmt.Errorf("Unsupported resource style found: ‘my-resource’, please validate your policy document."), false},

2
cmd/server_test.go
View File

@ -162,7 +162,7 @@ func (s *TestSuiteCommon) TestBucketNotification(c *C) {
// Deletes the policy and verifies the deletion by fetching it back.
func (s *TestSuiteCommon) TestBucketPolicy(c *C) {
// Sample bucket policy.
bucketPolicyBuf := `{"Version":"2012-10-17","Statement":[{"Sid":"","Effect":"Allow","Principal":{"AWS":["*"]},"Action":["s3:GetBucketLocation","s3:ListBucket"],"Resource":["arn:aws:s3:::%s"]},{"Sid":"","Effect":"Allow","Principal":{"AWS":["*"]},"Action":["s3:GetObject"],"Resource":["arn:aws:s3:::%s/this*"]}]}`
bucketPolicyBuf := `{"Version":"2012-10-17","Statement":[{"Action":["s3:GetBucketLocation","s3:ListBucket"],"Effect":"Allow","Principal":{"AWS":["*"]},"Resource":["arn:aws:s3:::%s"],"Sid":""},{"Action":["s3:GetObject"],"Effect":"Allow","Principal":{"AWS":["*"]},"Resource":["arn:aws:s3:::%s/this*"],"Sid":""}]}`
// generate a random bucket Name.
bucketName := getRandomBucketName()

202
vendor/github.com/minio/minio-go/LICENSE generated vendored Normal file
View File

@ -0,0 +1,202 @@
Apache License
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http://www.apache.org/licenses/
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196
vendor/github.com/minio/minio-go/pkg/set/stringset.go generated vendored Normal file
View File

@ -0,0 +1,196 @@
/*
* Minio Go Library for Amazon S3 Compatible Cloud Storage (C) 2016 Minio, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package set
import (
"encoding/json"
"fmt"
"sort"
)
// StringSet - uses map as set of strings.
type StringSet map[string]struct{}
// keys - returns StringSet keys.
func (set StringSet) keys() []string {
keys := make([]string, 0, len(set))
for k := range set {
keys = append(keys, k)
}
sort.Strings(keys)
return keys
}
// IsEmpty - returns whether the set is empty or not.
func (set StringSet) IsEmpty() bool {
return len(set) == 0
}
// Add - adds string to the set.
func (set StringSet) Add(s string) {
set[s] = struct{}{}
}
// Remove - removes string in the set. It does nothing if string does not exist in the set.
func (set StringSet) Remove(s string) {
delete(set, s)
}
// Contains - checks if string is in the set.
func (set StringSet) Contains(s string) bool {
_, ok := set[s]
return ok
}
// FuncMatch - returns new set containing each value who passes match function.
// A 'matchFn' should accept element in a set as first argument and
// 'matchString' as second argument. The function can do any logic to
// compare both the arguments and should return true to accept element in
// a set to include in output set else the element is ignored.
func (set StringSet) FuncMatch(matchFn func(string, string) bool, matchString string) StringSet {
nset := NewStringSet()
for k := range set {
if matchFn(k, matchString) {
nset.Add(k)
}
}
return nset
}
// ApplyFunc - returns new set containing each value processed by 'applyFn'.
// A 'applyFn' should accept element in a set as a argument and return
// a processed string. The function can do any logic to return a processed
// string.
func (set StringSet) ApplyFunc(applyFn func(string) string) StringSet {
nset := NewStringSet()
for k := range set {
nset.Add(applyFn(k))
}
return nset
}
// Equals - checks whether given set is equal to current set or not.
func (set StringSet) Equals(sset StringSet) bool {
// If length of set is not equal to length of given set, the
// set is not equal to given set.
if len(set) != len(sset) {
return false
}
// As both sets are equal in length, check each elements are equal.
for k := range set {
if _, ok := sset[k]; !ok {
return false
}
}
return true
}
// Intersection - returns the intersection with given set as new set.
func (set StringSet) Intersection(sset StringSet) StringSet {
nset := NewStringSet()
for k := range set {
if _, ok := sset[k]; ok {
nset.Add(k)
}
}
return nset
}
// Difference - returns the difference with given set as new set.
func (set StringSet) Difference(sset StringSet) StringSet {
nset := NewStringSet()
for k := range set {
if _, ok := sset[k]; !ok {
nset.Add(k)
}
}
return nset
}
// Union - returns the union with given set as new set.
func (set StringSet) Union(sset StringSet) StringSet {
nset := NewStringSet()
for k := range set {
nset.Add(k)
}
for k := range sset {
nset.Add(k)
}
return nset
}
// MarshalJSON - converts to JSON data.
func (set StringSet) MarshalJSON() ([]byte, error) {
return json.Marshal(set.keys())
}
// UnmarshalJSON - parses JSON data and creates new set with it.
// If 'data' contains JSON string array, the set contains each string.
// If 'data' contains JSON string, the set contains the string as one element.
// If 'data' contains Other JSON types, JSON parse error is returned.
func (set *StringSet) UnmarshalJSON(data []byte) error {
sl := []string{}
var err error
if err = json.Unmarshal(data, &sl); err == nil {
*set = make(StringSet)
for _, s := range sl {
set.Add(s)
}
} else {
var s string
if err = json.Unmarshal(data, &s); err == nil {
*set = make(StringSet)
set.Add(s)
}
}
return err
}
// String - returns printable string of the set.
func (set StringSet) String() string {
return fmt.Sprintf("%s", set.keys())
}
// NewStringSet - creates new string set.
func NewStringSet() StringSet {
return make(StringSet)
}
// CreateStringSet - creates new string set with given string values.
func CreateStringSet(sl ...string) StringSet {
set := make(StringSet)
for _, k := range sl {
set.Add(k)
}
return set
}
// CopyStringSet - returns copy of given set.
func CopyStringSet(set StringSet) StringSet {
nset := NewStringSet()
for k, v := range set {
nset[k] = v
}
return nset
}

6
vendor/vendor.json vendored
View File

@ -107,6 +107,12 @@
"revision": "db6b4f13442b26995f04b3b2b31b006cae7786e6",
"revisionTime": "2016-02-29T08:42:30-08:00"
},
{
"checksumSHA1": "A8QOw1aWwc+RtjGozY0XeS5varo=",
"path": "github.com/minio/minio-go/pkg/set",
"revision": "9e734013294ab153b0bdbe182738bcddd46f1947",
"revisionTime": "2016-08-18T00:31:20Z"
},
{
"path": "github.com/minio/miniobrowser",
"revision": "2e74c097f04fd7927d46fee6482d41e7b5cbf830",