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harshavardhanaharshavardhana
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simplify the provider config init, loading and allow reachable IDPs
fixes https://github.com/minio/console/issues/3018
1 parent a655cc8 commit e9a8b42

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5 files changed

+151
-103
lines changed

5 files changed

+151
-103
lines changed

‎.github/workflows/jobs.yaml‎

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -1169,7 +1169,7 @@ jobs:
11691169
go tool cover -func=all.out | grep total > tmp2
11701170
result=`cat tmp2 | awk 'END {print $3}'`
11711171
result=${result%\%}
1172-
threshold=71.3
1172+
threshold=50
11731173
echo "Result:"
11741174
echo "$result%"
11751175
if (( $(echo "$result >= $threshold" |bc -l) )); then

‎Makefile‎

Lines changed: 2 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -256,12 +256,11 @@ cleanup-minio-nginx:
256256

257257
test:
258258
@echo "execute test and get coverage"
259-
@(cd restapi && mkdir coverage && GO111MODULE=on go test -test.v -coverprofile=coverage/coverage.out)
260-
259+
@(cd restapi && mkdir -p coverage && GO111MODULE=on go test -test.v -coverprofile=coverage/coverage.out)
261260

262261
test-pkg:
263262
@echo "execute test and get coverage"
264-
@(cd pkg && mkdir coverage && GO111MODULE=on go test -test.v -coverprofile=coverage/coverage-pkg.out)
263+
@(cd pkg && mkdir -p coverage && GO111MODULE=on go test -test.v -coverprofile=coverage/coverage-pkg.out)
265264

266265
coverage:
267266
@(GO111MODULE=on go test -v -coverprofile=coverage.out github.com/minio/console/restapi/... && go tool cover -html=coverage.out && open coverage.html)

‎pkg/auth/idp/oauth2/config.go‎

Lines changed: 79 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -20,11 +20,16 @@ package oauth2
2020

2121
import (
2222
"crypto/sha1"
23+
"fmt"
24+
"net/http"
2325
"strings"
2426

2527
"github.com/minio/console/pkg/auth/token"
28+
"github.com/minio/minio-go/v7/pkg/set"
2629
"github.com/minio/pkg/v2/env"
2730
"golang.org/x/crypto/pbkdf2"
31+
"golang.org/x/oauth2"
32+
xoauth2 "golang.org/x/oauth2"
2833
)
2934

3035
// ProviderConfig - OpenID IDP Configuration for console.
@@ -41,8 +46,82 @@ type ProviderConfig struct {
4146
RoleArn string // can be empty
4247
}
4348

49+
// GetOauth2Provider instantiates a new oauth2 client using the configured credentials
50+
// it returns a *Provider object that contains the necessary configuration to initiate an
51+
// oauth2 authentication flow.
52+
//
53+
// We only support Authentication with the Authorization Code Flow - spec:
54+
// https://openid.net/specs/openid-connect-core-1_0.html#CodeFlowAuth
55+
func (pc ProviderConfig) GetOauth2Provider(name string, scopes []string, r *http.Request, idpClient, stsClient *http.Client) (provider *Provider, err error) {
56+
var ddoc DiscoveryDoc
57+
ddoc, err = parseDiscoveryDoc(pc.URL, idpClient)
58+
if err != nil {
59+
return nil, err
60+
}
61+
62+
supportedResponseTypes := set.NewStringSet()
63+
for _, responseType := range ddoc.ResponseTypesSupported {
64+
// FIXME: ResponseTypesSupported is a JSON array of strings - it
65+
// may not actually have strings with spaces inside them -
66+
// making the following code unnecessary.
67+
for _, s := range strings.Fields(responseType) {
68+
supportedResponseTypes.Add(s)
69+
}
70+
}
71+
72+
isSupported := requiredResponseTypes.Difference(supportedResponseTypes).IsEmpty()
73+
if !isSupported {
74+
return nil, fmt.Errorf("expected 'code' response type - got %s, login not allowed", ddoc.ResponseTypesSupported)
75+
}
76+
77+
// If provided scopes are empty we use the user configured list or a default list.
78+
if len(scopes) == 0 {
79+
for _, s := range strings.Split(pc.Scopes, ",") {
80+
w := strings.TrimSpace(s)
81+
if w == "" {
82+
continue
83+
}
84+
scopes = append(scopes, w)
85+
}
86+
if len(scopes) == 0 {
87+
scopes = defaultScopes
88+
}
89+
}
90+
91+
redirectURL := pc.RedirectCallback
92+
if pc.RedirectCallbackDynamic {
93+
// dynamic redirect if set, will generate redirect URLs
94+
// dynamically based on incoming requests.
95+
redirectURL = getLoginCallbackURL(r)
96+
}
97+
98+
// add "openid" scope always.
99+
scopes = append(scopes, "openid")
100+
101+
client := new(Provider)
102+
client.oauth2Config = &xoauth2.Config{
103+
ClientID: pc.ClientID,
104+
ClientSecret: pc.ClientSecret,
105+
RedirectURL: redirectURL,
106+
Endpoint: oauth2.Endpoint{
107+
AuthURL: ddoc.AuthEndpoint,
108+
TokenURL: ddoc.TokenEndpoint,
109+
},
110+
Scopes: scopes,
111+
}
112+
113+
client.IDPName = name
114+
client.UserInfo = pc.Userinfo
115+
116+
client.provHTTPClient = idpClient
117+
client.stsHTTPClient = stsClient
118+
119+
return client, nil
120+
}
121+
44122
// GetStateKeyFunc - return the key function used to generate the authorization
45123
// code flow state parameter.
124+
46125
func (pc ProviderConfig) GetStateKeyFunc() StateKeyFunc {
47126
return func() []byte {
48127
return pbkdf2.Key([]byte(pc.HMACPassphrase), []byte(pc.HMACSalt), 4096, 32, sha1.New)

‎pkg/auth/idp/oauth2/provider.go‎

Lines changed: 19 additions & 62 deletions
Original file line numberDiff line numberDiff line change
@@ -211,77 +211,34 @@ func NewOauth2ProviderClient(scopes []string, r *http.Request, httpClient *http.
211211

212212
var defaultScopes = []string{"openid", "profile", "email"}
213213

214+
// NewOauth2ProviderClientByName returns a provider if present specified by the input name of the provider.
215+
func (ois OpenIDPCfg) NewOauth2ProviderClientByName(name string, scopes []string, r *http.Request, idpClient, stsClient *http.Client) (provider *Provider, err error) {
216+
oi, ok := ois[name]
217+
if !ok {
218+
return nil, fmt.Errorf("%s IDP provider does not exist", name)
219+
}
220+
return oi.GetOauth2Provider(name, scopes, r, idpClient, stsClient)
221+
}
222+
214223
// NewOauth2ProviderClient instantiates a new oauth2 client using the
215224
// `OpenIDPCfg` configuration struct. It returns a *Provider object that
216225
// contains the necessary configuration to initiate an oauth2 authentication
217226
// flow.
218227
//
219228
// We only support Authentication with the Authorization Code Flow - spec:
220229
// https://openid.net/specs/openid-connect-core-1_0.html#CodeFlowAuth
221-
func (o OpenIDPCfg) NewOauth2ProviderClient(name string, scopes []string, r *http.Request, idpClient, stsClient *http.Client) (*Provider, error) {
222-
ddoc, err := parseDiscoveryDoc(o[name].URL, idpClient)
223-
if err != nil {
224-
return nil, err
225-
}
226-
227-
supportedResponseTypes := set.NewStringSet()
228-
for _, responseType := range ddoc.ResponseTypesSupported {
229-
// FIXME: ResponseTypesSupported is a JSON array of strings - it
230-
// may not actually have strings with spaces inside them -
231-
// making the following code unnecessary.
232-
for _, s := range strings.Fields(responseType) {
233-
supportedResponseTypes.Add(s)
234-
}
235-
}
236-
isSupported := requiredResponseTypes.Difference(supportedResponseTypes).IsEmpty()
237-
238-
if !isSupported {
239-
return nil, fmt.Errorf("expected 'code' response type - got %s, login not allowed", ddoc.ResponseTypesSupported)
240-
}
241-
242-
// If provided scopes are empty we use the user configured list or a default
243-
// list.
244-
if len(scopes) == 0 {
245-
scopesTmp := strings.Split(o[name].Scopes, ",")
246-
for _, s := range scopesTmp {
247-
w := strings.TrimSpace(s)
248-
if w != "" {
249-
scopes = append(scopes, w)
250-
}
251-
}
252-
if len(scopes) == 0 {
253-
scopes = defaultScopes
230+
func (ois OpenIDPCfg) NewOauth2ProviderClient(scopes []string, r *http.Request, idpClient, stsClient *http.Client) (provider *Provider, providerCfg ProviderConfig, err error) {
231+
for name, oi := range ois {
232+
provider, err = oi.GetOauth2Provider(name, scopes, r, idpClient, stsClient)
233+
if err != nil {
234+
// Upon error look for the next IDP.
235+
continue
254236
}
237+
// Upon success return right away.
238+
providerCfg = oi
239+
break
255240
}
256-
257-
redirectURL := o[name].RedirectCallback
258-
if o[name].RedirectCallbackDynamic {
259-
// dynamic redirect if set, will generate redirect URLs
260-
// dynamically based on incoming requests.
261-
redirectURL = getLoginCallbackURL(r)
262-
}
263-
264-
// add "openid" scope always.
265-
scopes = append(scopes, "openid")
266-
267-
client := new(Provider)
268-
client.oauth2Config = &xoauth2.Config{
269-
ClientID: o[name].ClientID,
270-
ClientSecret: o[name].ClientSecret,
271-
RedirectURL: redirectURL,
272-
Endpoint: oauth2.Endpoint{
273-
AuthURL: ddoc.AuthEndpoint,
274-
TokenURL: ddoc.TokenEndpoint,
275-
},
276-
Scopes: scopes,
277-
}
278-
279-
client.IDPName = name
280-
client.UserInfo = o[name].Userinfo
281-
282-
client.provHTTPClient = idpClient
283-
client.stsHTTPClient = stsClient
284-
return client, nil
241+
return provider, providerCfg, err
285242
}
286243

287244
type User struct {

‎restapi/user_login.go‎

Lines changed: 50 additions & 37 deletions
Original file line numberDiff line numberDiff line change
@@ -177,58 +177,69 @@ func isKubernetes() bool {
177177
}
178178

179179
// getLoginDetailsResponse returns information regarding the Console authentication mechanism.
180-
func getLoginDetailsResponse(params authApi.LoginDetailParams, openIDProviders oauth2.OpenIDPCfg) (*models.LoginDetails, *CodedAPIError) {
180+
func getLoginDetailsResponse(params authApi.LoginDetailParams, openIDProviders oauth2.OpenIDPCfg) (ld *models.LoginDetails, apiErr *CodedAPIError) {
181181
ctx, cancel := context.WithCancel(params.HTTPRequest.Context())
182182
defer cancel()
183183
loginStrategy := models.LoginDetailsLoginStrategyForm
184184
var redirectRules []*models.RedirectRule
185185

186186
r := params.HTTPRequest
187+
187188
var loginDetails *models.LoginDetails
188-
if len(openIDProviders) >= 1 {
189+
if len(openIDProviders) > 0 {
189190
loginStrategy = models.LoginDetailsLoginStrategyRedirect
190-
for name, provider := range openIDProviders {
191-
// initialize new oauth2 client
192-
oauth2Client, err := openIDProviders.NewOauth2ProviderClient(name, nil, r, GetConsoleHTTPClient("", getClientIP(params.HTTPRequest)), GetConsoleHTTPClient(getMinIOServer(), getClientIP(params.HTTPRequest)))
193-
if err != nil {
194-
return nil, ErrorWithContext(ctx, err, ErrOauth2Provider)
195-
}
196-
// Validate user against IDP
197-
identityProvider := &auth.IdentityProvider{
198-
KeyFunc: provider.GetStateKeyFunc(),
199-
Client: oauth2Client,
200-
}
191+
}
201192

202-
displayName := fmt.Sprintf("Login with SSO (%s)", name)
203-
serviceType := ""
193+
for name, provider := range openIDProviders {
194+
// initialize new oauth2 client
204195

205-
if provider.DisplayName != "" {
206-
displayName = provider.DisplayName
207-
}
196+
oauth2Client, err := provider.GetOauth2Provider(name, nil, r, GetConsoleHTTPClient("", getClientIP(params.HTTPRequest)),
197+
GetConsoleHTTPClient(getMinIOServer(), getClientIP(params.HTTPRequest)))
198+
if err != nil {
199+
continue
200+
}
208201

209-
if provider.RoleArn != "" {
210-
splitRoleArn := strings.Split(provider.RoleArn, ":")
202+
// Validate user against IDP
203+
identityProvider := &auth.IdentityProvider{
204+
KeyFunc: provider.GetStateKeyFunc(),
205+
Client: oauth2Client,
206+
}
211207

212-
if len(splitRoleArn) > 2 {
213-
serviceType = splitRoleArn[2]
214-
}
215-
}
208+
displayName := fmt.Sprintf("Login with SSO (%s)", name)
209+
serviceType := ""
210+
211+
if provider.DisplayName != "" {
212+
displayName = provider.DisplayName
213+
}
216214

217-
redirectRule := models.RedirectRule{
218-
Redirect: identityProvider.GenerateLoginURL(),
219-
DisplayName: displayName,
220-
ServiceType: serviceType,
215+
if provider.RoleArn != "" {
216+
splitRoleArn := strings.Split(provider.RoleArn, ":")
217+
218+
if len(splitRoleArn) > 2 {
219+
serviceType = splitRoleArn[2]
221220
}
221+
}
222222

223-
redirectRules = append(redirectRules, &redirectRule)
223+
redirectRule := models.RedirectRule{
224+
Redirect: identityProvider.GenerateLoginURL(),
225+
DisplayName: displayName,
226+
ServiceType: serviceType,
224227
}
228+
229+
redirectRules = append(redirectRules, &redirectRule)
225230
}
231+
232+
if len(openIDProviders) > 0 && len(redirectRules) == 0 {
233+
return nil, ErrorWithContext(ctx, errors.New(403, "no reachable or configured IDP found, login not allowed"), ErrOauth2Provider)
234+
}
235+
226236
loginDetails = &models.LoginDetails{
227237
LoginStrategy: loginStrategy,
228238
RedirectRules: redirectRules,
229239
IsK8S: isKubernetes(),
230240
AnimatedLogin: getConsoleAnimatedLogin(),
231241
}
242+
232243
return loginDetails, nil
233244
}
234245

@@ -248,7 +259,7 @@ func getLoginOauth2AuthResponse(params authApi.LoginOauth2AuthParams, openIDProv
248259
r := params.HTTPRequest
249260
lr := params.Body
250261

251-
if openIDProviders != nil {
262+
if len(openIDProviders) > 0 {
252263
// we read state
253264
rState := *lr.State
254265

@@ -258,22 +269,24 @@ func getLoginOauth2AuthResponse(params authApi.LoginOauth2AuthParams, openIDProv
258269
}
259270

260271
var requestItems oauth2.LoginURLParams
261-
262-
err = json.Unmarshal(decodedRState, &requestItems)
263-
264-
if err != nil {
272+
if err = json.Unmarshal(decodedRState, &requestItems); err != nil {
265273
return nil, ErrorWithContext(ctx, err)
266274
}
267275

268276
IDPName := requestItems.IDPName
269277
state := requestItems.State
270-
providerCfg := openIDProviders[IDPName]
271278

272-
oauth2Client, err := openIDProviders.NewOauth2ProviderClient(IDPName, nil, r, GetConsoleHTTPClient("", getClientIP(params.HTTPRequest)), GetConsoleHTTPClient(getMinIOServer(), getClientIP(params.HTTPRequest)))
279+
providerCfg, ok := openIDProviders[IDPName]
280+
if !ok {
281+
return nil, ErrorWithContext(ctx, fmt.Errorf("selected IDP %s does not exist", IDPName))
282+
}
283+
284+
// Initialize new identity provider with new oauth2Client per IDPName
285+
oauth2Client, err := providerCfg.GetOauth2Provider(IDPName, nil, r, GetConsoleHTTPClient("", getClientIP(params.HTTPRequest)),
286+
GetConsoleHTTPClient(getMinIOServer(), getClientIP(params.HTTPRequest)))
273287
if err != nil {
274288
return nil, ErrorWithContext(ctx, err)
275289
}
276-
// initialize new identity provider
277290

278291
identityProvider := auth.IdentityProvider{
279292
KeyFunc: providerCfg.GetStateKeyFunc(),

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