[TESTS] oauth2: make it possible to use an alternate http.Client

(cherry picked from commit aea4ab25a9)
(cherry picked from commit d386b212c4)
(cherry picked from commit c4935f08ad)
(cherry picked from commit dc6ca7cd25)
(cherry picked from commit 25296d5a3c)
(cherry picked from commit 3d54c64c5f)
(cherry picked from commit 6ece0b9d01)
(cherry picked from commit 3b39962033)
(cherry picked from commit 5e2167cd03)
(cherry picked from commit e676d7b265)

services/auth/source/oauth2/http.go

@@ -0,0 +1,10 @@
+// SPDX-FileCopyrightText: Copyright the Forgejo contributors
+// SPDX-License-Identifier: MIT
+
+package oauth2
+
+import (
+	"net/http"
+)
+
+var HTTPClient *http.Client

services/auth/source/oauth2/providers_custom.go

@@ -63,7 +63,9 @@ func init() {
 			if setting.OAuth2Client.EnableAutoRegistration {
 				scopes = append(scopes, "user:email")
 			}
-			return github.NewCustomisedURL(clientID, secret, callbackURL, custom.AuthURL, custom.TokenURL, custom.ProfileURL, custom.EmailURL, scopes...), nil
+			provider := github.NewCustomisedURL(clientID, secret, callbackURL, custom.AuthURL, custom.TokenURL, custom.ProfileURL, custom.EmailURL, scopes...)
+			provider.HTTPClient = HTTPClient
+			return provider, nil
 		}))
 
 	RegisterGothProvider(NewCustomProvider(
@@ -73,7 +75,9 @@ func init() {
 			ProfileURL: availableAttribute(gitlab.ProfileURL),
 		}, func(clientID, secret, callbackURL string, custom *CustomURLMapping, scopes []string) (goth.Provider, error) {
 			scopes = append(scopes, "read_user")
-			return gitlab.NewCustomisedURL(clientID, secret, callbackURL, custom.AuthURL, custom.TokenURL, custom.ProfileURL, scopes...), nil
+			provider := gitlab.NewCustomisedURL(clientID, secret, callbackURL, custom.AuthURL, custom.TokenURL, custom.ProfileURL, scopes...)
+			provider.HTTPClient = HTTPClient
+			return provider, nil
 		}))
 
 	RegisterGothProvider(NewCustomProvider(
@@ -83,7 +87,9 @@ func init() {
 			ProfileURL: requiredAttribute(gitea.ProfileURL),
 		},
 		func(clientID, secret, callbackURL string, custom *CustomURLMapping, scopes []string) (goth.Provider, error) {
-			return gitea.NewCustomisedURL(clientID, secret, callbackURL, custom.AuthURL, custom.TokenURL, custom.ProfileURL, scopes...), nil
+			provider := gitea.NewCustomisedURL(clientID, secret, callbackURL, custom.AuthURL, custom.TokenURL, custom.ProfileURL, scopes...)
+			provider.HTTPClient = HTTPClient
+			return provider, nil
 		}))
 
 	RegisterGothProvider(NewCustomProvider(
@@ -93,7 +99,9 @@ func init() {
 			ProfileURL: requiredAttribute(nextcloud.ProfileURL),
 		},
 		func(clientID, secret, callbackURL string, custom *CustomURLMapping, scopes []string) (goth.Provider, error) {
-			return nextcloud.NewCustomisedURL(clientID, secret, callbackURL, custom.AuthURL, custom.TokenURL, custom.ProfileURL, scopes...), nil
+			provider := nextcloud.NewCustomisedURL(clientID, secret, callbackURL, custom.AuthURL, custom.TokenURL, custom.ProfileURL, scopes...)
+			provider.HTTPClient = HTTPClient
+			return provider, nil
 		}))
 
 	RegisterGothProvider(NewCustomProvider(
@@ -101,7 +109,9 @@ func init() {
 			AuthURL: requiredAttribute(mastodon.InstanceURL),
 		},
 		func(clientID, secret, callbackURL string, custom *CustomURLMapping, scopes []string) (goth.Provider, error) {
-			return mastodon.NewCustomisedURL(clientID, secret, callbackURL, custom.AuthURL, scopes...), nil
+			provider := mastodon.NewCustomisedURL(clientID, secret, callbackURL, custom.AuthURL, scopes...)
+			provider.HTTPClient = HTTPClient
+			return provider, nil
 		}))
 
 	RegisterGothProvider(NewCustomProvider(
@@ -114,10 +124,12 @@ func init() {
 				azureScopes[i] = azureadv2.ScopeType(scope)
 			}
 
-			return azureadv2.New(clientID, secret, callbackURL, azureadv2.ProviderOptions{
+			provider := azureadv2.New(clientID, secret, callbackURL, azureadv2.ProviderOptions{
 				Tenant: azureadv2.TenantType(custom.Tenant),
 				Scopes: azureScopes,
-			}), nil
+			})
+			provider.HTTPClient = HTTPClient
+			return provider, nil
 		},
 	))
 }

services/auth/source/oauth2/providers_openid.go

@@ -43,6 +43,7 @@ func (o *OpenIDProvider) CreateGothProvider(providerName, callbackURL string, so
 	if err != nil {
 		log.Warn("Failed to create OpenID Connect Provider with name '%s' with url '%s': %v", providerName, source.OpenIDConnectAutoDiscoveryURL, err)
 	}
+	provider.HTTPClient = HTTPClient
 	return provider, err
 }