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// Copyright 2025 OpenPubkey
//
// 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.
//
// SPDX-License-Identifier: Apache-2.0
package mocks
import (
"fmt"
"io"
"net/http"
"strings"
)
const googleWellknownResponse = `{
"issuer": "https://accounts.google.com",
"authorization_endpoint": "https://accounts.google.com/o/oauth2/v2/auth",
"device_authorization_endpoint": "https://oauth2.googleapis.com/device/code",
"token_endpoint": "https://oauth2.googleapis.com/token",
"userinfo_endpoint": "https://openidconnect.googleapis.com/v1/userinfo",
"revocation_endpoint": "https://oauth2.googleapis.com/revoke",
"jwks_uri": "https://www.googleapis.com/oauth2/v3/certs",
"response_types_supported": [
"code",
"token",
"id_token",
"code token",
"code id_token",
"token id_token",
"code token id_token",
"none"
],
"subject_types_supported": [
"public"
],
"id_token_signing_alg_values_supported": [
"RS256"
],
"scopes_supported": [
"openid",
"email",
"profile"
],
"token_endpoint_auth_methods_supported": [
"client_secret_post",
"client_secret_basic"
],
"claims_supported": [
"aud",
"email",
"email_verified",
"exp",
"family_name",
"given_name",
"iat",
"iss",
"name",
"picture",
"sub"
],
"code_challenge_methods_supported": [
"plain",
"S256"
],
"grant_types_supported": [
"authorization_code",
"refresh_token",
"urn:ietf:params:oauth:grant-type:device_code",
"urn:ietf:params:oauth:grant-type:jwt-bearer"
]
}`
const googleCorruptedResponse = `{
"issuer": "https://accounts.go
}`
func NewMockGoogleUserInfoHTTPClient(userInfoResponse, requiredToken string) *http.Client {
return NewMockUserInfoClient(
"https://accounts.google.com/.well-known/openid-configuration",
"https://openidconnect.googleapis.com/v1/userinfo",
googleWellknownResponse,
userInfoResponse,
requiredToken,
)
}
func NewMockBrokenHTTPClient(userInfoResponse, requiredToken string, retErr error) *http.Client {
return &http.Client{
Transport: RoundTripFunc(func(req *http.Request) (*http.Response, error) {
return nil, retErr
}),
}
}
func NewMockGoogleUserInfoHTTPClientCorruptedJson(userInfoResponse, requiredToken string) *http.Client {
return NewMockUserInfoClient(
"https://accounts.google.com/.well-known/openid-configuration",
"https://openidconnect.googleapis.com/v1/userinfo",
googleCorruptedResponse,
userInfoResponse,
requiredToken,
)
}
func NewMockUserInfoClient(wellKnownUri string, userInfoUri string, wellknownResponse string, userInfoResponse string, requiredToken string) *http.Client {
return &http.Client{
Transport: RoundTripFunc(func(req *http.Request) (*http.Response, error) {
if req.Method == http.MethodGet && strings.HasPrefix(req.URL.String(), wellKnownUri) {
return &http.Response{
StatusCode: 200,
Header: http.Header{"Content-Type": {"application/json"}},
Body: io.NopCloser(strings.NewReader(wellknownResponse)),
}, nil
}
if req.Method == http.MethodGet && req.URL.String() == userInfoUri {
if req.Header.Get("Authorization") != "Bearer "+requiredToken {
return nil, fmt.Errorf("invalid access token")
}
return &http.Response{
StatusCode: 200,
Header: http.Header{"Content-Type": {"application/json"}},
Body: io.NopCloser(strings.NewReader(userInfoResponse)),
}, nil
}
return nil, fmt.Errorf("unexpected HTTP call to %s %s", req.Method, req.URL)
}),
}
}
type RoundTripFunc func(req *http.Request) (*http.Response, error)
func (f RoundTripFunc) RoundTrip(req *http.Request) (*http.Response, error) {
return f(req)
}
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