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middleware_test.go
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middleware_test.go
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package sns
import (
"bytes"
"encoding/json"
"fmt"
"net/http"
"net/http/httptest"
"testing"
)
var _ subscriber = (*mockSubscriber)(nil)
type mockSubscriber struct {
ExpectConfirmSubscription func(msg SubscriptionConfirmation) (string, error)
ExpectValidateCertURL func(certURL string) error
ExpectCheckSignature func(ms MessageSignature) error
}
func (m *mockSubscriber) ConfirmSubscription(msg SubscriptionConfirmation) (string, error) {
return m.ExpectConfirmSubscription(msg)
}
func (m *mockSubscriber) ValidateCertURL(certURL string) error {
return m.ExpectValidateCertURL(certURL)
}
func (m *mockSubscriber) CheckSignature(ms MessageSignature) error {
return m.ExpectCheckSignature(ms)
}
func TestMiddleware_Subscribe_Notification(t *testing.T) {
t.Parallel()
tests := []struct {
name string
prepare func() subscriber
topicARN string
messageType string
body map[string]interface{}
wantStatusCode int
}{
{
name: "it returns ok",
prepare: func() subscriber {
c := &mockSubscriber{
ExpectValidateCertURL: func(certURL string) error {
if certURL != "https://sns.us-west-2.amazonaws.com/SimpleNotificationService-f3ecfb7224c7233fe7bb5f59f96de52f.pem" {
t.Error("invalid certURL")
}
return nil
},
ExpectCheckSignature: func(ms MessageSignature) error {
if ms.Signature != "cwMmnINV7NWn5wb4o1faQx9QZBOEpSaJaA86Asdkrpr9C0rdkI/RnyUNl5DrqmueaCiCImuy4Jh0CNeOzqXEdv6WuBjUPbQT/YyAb1h00VVqvjyOvsl2kq+7B3bTfNEahHFZJS2Xh0AtwtWENt159iNnlIRD5NSeVlRyicVv2mgCgK9qxLGGyOFESk43sqUnx5abr0mDR2oFRgbWgwHOly3bQjoaXCfrFYXbmEpz9mMScxoOcRgAUqGVkNLzNBDPU4d9OiBwHxifZBfA6AB3ZxoLm/IZXQJCoK7g44O3NjBCC5nnaMDnHJm1TeSqwVXx8MQQ+8LHhcLbghKkPvo33g==" {
t.Error("invalid signature")
}
return nil
},
}
return c
},
topicARN: "arn:aws:sns:us-west-2:123456789012:MyTopic",
messageType: "Notification",
body: map[string]interface{}{
"Type": "Notification",
"MessageId": "22b80b92-fdea-4c2c-8f9d-bdfb0c7bf324",
"TopicArn": "arn:aws:sns:us-west-2:123456789012:MyTopic",
"Subject": "My First Message",
"Message": "Hello world!",
"Timestamp": "2012-05-02T00:54:06.655Z",
"SignatureVersion": "1",
"Signature": "cwMmnINV7NWn5wb4o1faQx9QZBOEpSaJaA86Asdkrpr9C0rdkI/RnyUNl5DrqmueaCiCImuy4Jh0CNeOzqXEdv6WuBjUPbQT/YyAb1h00VVqvjyOvsl2kq+7B3bTfNEahHFZJS2Xh0AtwtWENt159iNnlIRD5NSeVlRyicVv2mgCgK9qxLGGyOFESk43sqUnx5abr0mDR2oFRgbWgwHOly3bQjoaXCfrFYXbmEpz9mMScxoOcRgAUqGVkNLzNBDPU4d9OiBwHxifZBfA6AB3ZxoLm/IZXQJCoK7g44O3NjBCC5nnaMDnHJm1TeSqwVXx8MQQ+8LHhcLbghKkPvo33g==",
"SigningCertURL": "https://sns.us-west-2.amazonaws.com/SimpleNotificationService-f3ecfb7224c7233fe7bb5f59f96de52f.pem",
"UnsubscribeURL": "https://sns.us-west-2.amazonaws.com/?Action=Unsubscribe&SubscriptionArn=arn:aws:sns:us-west-2:123456789012:MyTopic:c9135db0-26c4-47ec-8998-413945fb5a96",
},
wantStatusCode: http.StatusOK,
},
{
name: "it returns forbidden when ValidateCertURL failed",
prepare: func() subscriber {
c := &mockSubscriber{
ExpectConfirmSubscription: func(msg SubscriptionConfirmation) (string, error) {
return "", nil
},
ExpectValidateCertURL: func(certURL string) error {
return ErrInvalidCertURLHost
},
ExpectCheckSignature: func(ms MessageSignature) error {
return nil
},
}
return c
},
topicARN: "arn:aws:sns:us-west-2:123456789012:MyTopic",
messageType: "Notification",
body: map[string]interface{}{
"Type": "Notification",
"MessageId": "22b80b92-fdea-4c2c-8f9d-bdfb0c7bf324",
"TopicArn": "arn:aws:sns:us-west-2:123456789012:MyTopic",
"Subject": "My First Message",
"Message": "Hello world!",
"Timestamp": "2012-05-02T00:54:06.655Z",
"SignatureVersion": "1",
"Signature": "cwMmnINV7NWn5wb4o1faQx9QZBOEpSaJaA86Asdkrpr9C0rdkI/RnyUNl5DrqmueaCiCImuy4Jh0CNeOzqXEdv6WuBjUPbQT/YyAb1h00VVqvjyOvsl2kq+7B3bTfNEahHFZJS2Xh0AtwtWENt159iNnlIRD5NSeVlRyicVv2mgCgK9qxLGGyOFESk43sqUnx5abr0mDR2oFRgbWgwHOly3bQjoaXCfrFYXbmEpz9mMScxoOcRgAUqGVkNLzNBDPU4d9OiBwHxifZBfA6AB3ZxoLm/IZXQJCoK7g44O3NjBCC5nnaMDnHJm1TeSqwVXx8MQQ+8LHhcLbghKkPvo33g==",
"SigningCertURL": "https://sns.us-west-2.amazonaws.com/SimpleNotificationService-f3ecfb7224c7233fe7bb5f59f96de52f.pem",
"UnsubscribeURL": "https://sns.us-west-2.amazonaws.com/?Action=Unsubscribe&SubscriptionArn=arn:aws:sns:us-west-2:123456789012:MyTopic:c9135db0-26c4-47ec-8998-413945fb5a96",
},
wantStatusCode: http.StatusForbidden,
},
{
name: "it returns forbidden when CheckSignature failed",
prepare: func() subscriber {
c := &mockSubscriber{
ExpectConfirmSubscription: func(msg SubscriptionConfirmation) (string, error) {
return "", nil
},
ExpectValidateCertURL: func(certURL string) error {
return nil
},
ExpectCheckSignature: func(ms MessageSignature) error {
return ErrInvalidSignature
},
}
return c
},
topicARN: "arn:aws:sns:us-west-2:123456789012:MyTopic",
messageType: "Notification",
body: map[string]interface{}{
"Type": "Notification",
"MessageId": "22b80b92-fdea-4c2c-8f9d-bdfb0c7bf324",
"TopicArn": "arn:aws:sns:us-west-2:123456789012:MyTopic",
"Subject": "My First Message",
"Message": "Hello world!",
"Timestamp": "2012-05-02T00:54:06.655Z",
"SignatureVersion": "1",
"Signature": "cwMmnINV7NWn5wb4o1faQx9QZBOEpSaJaA86Asdkrpr9C0rdkI/RnyUNl5DrqmueaCiCImuy4Jh0CNeOzqXEdv6WuBjUPbQT/YyAb1h00VVqvjyOvsl2kq+7B3bTfNEahHFZJS2Xh0AtwtWENt159iNnlIRD5NSeVlRyicVv2mgCgK9qxLGGyOFESk43sqUnx5abr0mDR2oFRgbWgwHOly3bQjoaXCfrFYXbmEpz9mMScxoOcRgAUqGVkNLzNBDPU4d9OiBwHxifZBfA6AB3ZxoLm/IZXQJCoK7g44O3NjBCC5nnaMDnHJm1TeSqwVXx8MQQ+8LHhcLbghKkPvo33g==",
"SigningCertURL": "https://sns.us-west-2.amazonaws.com/SimpleNotificationService-f3ecfb7224c7233fe7bb5f59f96de52f.pem",
"UnsubscribeURL": "https://sns.us-west-2.amazonaws.com/?Action=Unsubscribe&SubscriptionArn=arn:aws:sns:us-west-2:123456789012:MyTopic:c9135db0-26c4-47ec-8998-413945fb5a96",
},
wantStatusCode: http.StatusForbidden,
},
}
for _, tt := range tests {
tt := tt
t.Run(tt.name, func(t *testing.T) {
t.Parallel()
handler := func(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusOK)
fmt.Fprintf(w, "OK")
}
b, _ := json.Marshal(tt.body)
req := httptest.NewRequest("GET", "/", bytes.NewReader(b))
req.Header.Set(XAmzSnsTopicArn, tt.topicARN)
req.Header.Set(XAmzSnsMessageType, tt.messageType)
w := httptest.NewRecorder()
m := NewMiddleware()
m.subscriber = tt.prepare()
h := m.Subscribe(tt.topicARN)(handler)
h.ServeHTTP(w, req)
resp := w.Result()
if resp.StatusCode != tt.wantStatusCode {
t.Errorf("Subscribe() = %v, want %v", resp.StatusCode, tt.wantStatusCode)
}
})
}
}
func TestMiddleware_Subscribe_SubscriptionConfirmation(t *testing.T) {
t.Parallel()
wantMsg := SubscriptionConfirmation{
Type: "SubscriptionConfirmation",
MessageId: "165545c9-2a5c-472c-8df2-7ff2be2b3b1b",
Token: "Ethevee8dae4mie3",
TopicArn: "arn:aws:sns:us-west-2:123456789012:MyTopic",
Message: "You have chosen to subscribe to the topic arn:aws:sns:us-west-2:123456789012:MyTopic.\nTo confirm the subscription, visit the SubscribeURL included in this message.",
SubscribeURL: "https://sns.us-west-2.amazonaws.com/?Action=ConfirmSubscription&TopicArn=arn:aws:sns:us-west-2:123456789012:MyTopic&Token=Ethevee8dae4mie3",
Timestamp: "2012-04-26T20:45:04.751Z",
SignatureVersion: "1",
Signature: "EXAMPLEpH+DcEwjAPg8O9mY8dReBSwksfg2S7WKQcikcNKWLQjwu6A4VbeS0QHVCkhRS7fUQvi2egU3N858fiTDN6bkkOxYDVrY0Ad8L10Hs3zH81mtnPk5uvvolIC1CXGu43obcgFxeL3khZl8IKvO61GWB6jI9b5+gLPoBc1Q=",
SigningCertURL: "https://sns.us-west-2.amazonaws.com/SimpleNotificationService-f3ecfb7224c7233fe7bb5f59f96de52f.pem",
}
tests := []struct {
name string
prepare func() subscriber
topicARN string
messageType string
body map[string]interface{}
wantStatusCode int
}{
{
name: "it returns ok",
prepare: func() subscriber {
c := &mockSubscriber{
ExpectConfirmSubscription: func(msg SubscriptionConfirmation) (string, error) {
if msg != wantMsg {
t.Error("invalid msg")
}
return "success", nil
},
ExpectValidateCertURL: func(certURL string) error {
if certURL != wantMsg.SigningCertURL {
t.Error("invalid certURL")
}
return nil
},
ExpectCheckSignature: func(ms MessageSignature) error {
if ms.Signature != wantMsg.Signature {
t.Error("invalid signature")
}
return nil
},
}
return c
},
topicARN: "arn:aws:sns:us-west-2:123456789012:MyTopic",
messageType: "SubscriptionConfirmation",
body: map[string]interface{}{
"Type": "SubscriptionConfirmation",
"MessageId": "165545c9-2a5c-472c-8df2-7ff2be2b3b1b",
"Token": "Ethevee8dae4mie3",
"TopicArn": "arn:aws:sns:us-west-2:123456789012:MyTopic",
"Message": "You have chosen to subscribe to the topic arn:aws:sns:us-west-2:123456789012:MyTopic.\nTo confirm the subscription, visit the SubscribeURL included in this message.",
"SubscribeURL": "https://sns.us-west-2.amazonaws.com/?Action=ConfirmSubscription&TopicArn=arn:aws:sns:us-west-2:123456789012:MyTopic&Token=Ethevee8dae4mie3",
"Timestamp": "2012-04-26T20:45:04.751Z",
"SignatureVersion": "1",
"Signature": "EXAMPLEpH+DcEwjAPg8O9mY8dReBSwksfg2S7WKQcikcNKWLQjwu6A4VbeS0QHVCkhRS7fUQvi2egU3N858fiTDN6bkkOxYDVrY0Ad8L10Hs3zH81mtnPk5uvvolIC1CXGu43obcgFxeL3khZl8IKvO61GWB6jI9b5+gLPoBc1Q=",
"SigningCertURL": "https://sns.us-west-2.amazonaws.com/SimpleNotificationService-f3ecfb7224c7233fe7bb5f59f96de52f.pem",
},
wantStatusCode: http.StatusOK,
},
{
name: "it returns forbidden when ConfirmSubscription failed",
prepare: func() subscriber {
c := &mockSubscriber{
ExpectConfirmSubscription: func(msg SubscriptionConfirmation) (string, error) {
return "", ErrConfirmSubscription
},
ExpectValidateCertURL: func(certURL string) error {
return nil
},
ExpectCheckSignature: func(ms MessageSignature) error {
return nil
},
}
return c
},
topicARN: "arn:aws:sns:us-west-2:123456789012:MyTopic",
messageType: "SubscriptionConfirmation",
body: map[string]interface{}{
"Type": "SubscriptionConfirmation",
"MessageId": "165545c9-2a5c-472c-8df2-7ff2be2b3b1b",
"Token": "Ethevee8dae4mie3",
"TopicArn": "arn:aws:sns:us-west-2:123456789012:MyTopic",
"Message": "You have chosen to subscribe to the topic arn:aws:sns:us-west-2:123456789012:MyTopic.\nTo confirm the subscription, visit the SubscribeURL included in this message.",
"SubscribeURL": "https://sns.us-west-2.amazonaws.com/?Action=ConfirmSubscription&TopicArn=arn:aws:sns:us-west-2:123456789012:MyTopic&Token=Ethevee8dae4mie3",
"Timestamp": "2012-04-26T20:45:04.751Z",
"SignatureVersion": "1",
"Signature": "EXAMPLEpH+DcEwjAPg8O9mY8dReBSwksfg2S7WKQcikcNKWLQjwu6A4VbeS0QHVCkhRS7fUQvi2egU3N858fiTDN6bkkOxYDVrY0Ad8L10Hs3zH81mtnPk5uvvolIC1CXGu43obcgFxeL3khZl8IKvO61GWB6jI9b5+gLPoBc1Q=",
"SigningCertURL": "https://sns.us-west-2.amazonaws.com/SimpleNotificationService-f3ecfb7224c7233fe7bb5f59f96de52f.pem",
},
wantStatusCode: http.StatusForbidden,
},
{
name: "it returns forbidden when ValidateCertURL failed",
prepare: func() subscriber {
c := &mockSubscriber{
ExpectConfirmSubscription: func(msg SubscriptionConfirmation) (string, error) {
return "ok", nil
},
ExpectValidateCertURL: func(certURL string) error {
return ErrInvalidCertURLSchema
},
ExpectCheckSignature: func(ms MessageSignature) error {
return nil
},
}
return c
},
topicARN: "arn:aws:sns:us-west-2:123456789012:MyTopic",
messageType: "SubscriptionConfirmation",
body: map[string]interface{}{
"Type": "SubscriptionConfirmation",
"MessageId": "165545c9-2a5c-472c-8df2-7ff2be2b3b1b",
"Token": "Ethevee8dae4mie3",
"TopicArn": "arn:aws:sns:us-west-2:123456789012:MyTopic",
"Message": "You have chosen to subscribe to the topic arn:aws:sns:us-west-2:123456789012:MyTopic.\nTo confirm the subscription, visit the SubscribeURL included in this message.",
"SubscribeURL": "https://sns.us-west-2.amazonaws.com/?Action=ConfirmSubscription&TopicArn=arn:aws:sns:us-west-2:123456789012:MyTopic&Token=Ethevee8dae4mie3",
"Timestamp": "2012-04-26T20:45:04.751Z",
"SignatureVersion": "1",
"Signature": "EXAMPLEpH+DcEwjAPg8O9mY8dReBSwksfg2S7WKQcikcNKWLQjwu6A4VbeS0QHVCkhRS7fUQvi2egU3N858fiTDN6bkkOxYDVrY0Ad8L10Hs3zH81mtnPk5uvvolIC1CXGu43obcgFxeL3khZl8IKvO61GWB6jI9b5+gLPoBc1Q=",
"SigningCertURL": "https://sns.us-west-2.amazonaws.com/SimpleNotificationService-f3ecfb7224c7233fe7bb5f59f96de52f.pem",
},
wantStatusCode: http.StatusForbidden,
},
{
name: "it returns forbidden when CheckSignature failed",
prepare: func() subscriber {
c := &mockSubscriber{
ExpectConfirmSubscription: func(msg SubscriptionConfirmation) (string, error) {
return "ok", nil
},
ExpectValidateCertURL: func(certURL string) error {
return nil
},
ExpectCheckSignature: func(ms MessageSignature) error {
return ErrInvalidSignature
},
}
return c
},
topicARN: "arn:aws:sns:us-west-2:123456789012:MyTopic",
messageType: "SubscriptionConfirmation",
body: map[string]interface{}{
"Type": "SubscriptionConfirmation",
"MessageId": "165545c9-2a5c-472c-8df2-7ff2be2b3b1b",
"Token": "Ethevee8dae4mie3",
"TopicArn": "arn:aws:sns:us-west-2:123456789012:MyTopic",
"Message": "You have chosen to subscribe to the topic arn:aws:sns:us-west-2:123456789012:MyTopic.\nTo confirm the subscription, visit the SubscribeURL included in this message.",
"SubscribeURL": "https://sns.us-west-2.amazonaws.com/?Action=ConfirmSubscription&TopicArn=arn:aws:sns:us-west-2:123456789012:MyTopic&Token=Ethevee8dae4mie3",
"Timestamp": "2012-04-26T20:45:04.751Z",
"SignatureVersion": "1",
"Signature": "EXAMPLEpH+DcEwjAPg8O9mY8dReBSwksfg2S7WKQcikcNKWLQjwu6A4VbeS0QHVCkhRS7fUQvi2egU3N858fiTDN6bkkOxYDVrY0Ad8L10Hs3zH81mtnPk5uvvolIC1CXGu43obcgFxeL3khZl8IKvO61GWB6jI9b5+gLPoBc1Q=",
"SigningCertURL": "https://sns.us-west-2.amazonaws.com/SimpleNotificationService-f3ecfb7224c7233fe7bb5f59f96de52f.pem",
},
wantStatusCode: http.StatusForbidden,
},
}
for _, tt := range tests {
tt := tt
t.Run(tt.name, func(t *testing.T) {
t.Parallel()
handler := func(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusOK)
fmt.Fprintf(w, "OK")
}
b, _ := json.Marshal(tt.body)
req := httptest.NewRequest("GET", "/", bytes.NewReader(b))
req.Header.Set(XAmzSnsTopicArn, tt.topicARN)
req.Header.Set(XAmzSnsMessageType, tt.messageType)
w := httptest.NewRecorder()
m := NewMiddleware()
m.subscriber = tt.prepare()
h := m.Subscribe(tt.topicARN)(handler)
h.ServeHTTP(w, req)
resp := w.Result()
if resp.StatusCode != tt.wantStatusCode {
t.Errorf("Subscribe() = %v, want %v", resp.StatusCode, tt.wantStatusCode)
}
})
}
}