nextcloud oauth (#10562)

Fix #7078

Author: techknowlogick

models/oauth2.go

@@ -51,15 +51,23 @@ var OAuth2Providers = map[string]OAuth2Provider{
 			ProfileURL: oauth2.GetDefaultProfileURL("gitea"),
 		},
 	},
+	"nextcloud": {Name: "nextcloud", DisplayName: "Nextcloud", Image: "/img/auth/nextcloud.png",
+		CustomURLMapping: &oauth2.CustomURLMapping{
+			TokenURL:   oauth2.GetDefaultTokenURL("nextcloud"),
+			AuthURL:    oauth2.GetDefaultAuthURL("nextcloud"),
+			ProfileURL: oauth2.GetDefaultProfileURL("nextcloud"),
+		},
+	},
 }
 
 // OAuth2DefaultCustomURLMappings contains the map of default URL's for OAuth2 providers that are allowed to have custom urls
 // key is used to map the OAuth2Provider
 // value is the mapping as defined for the OAuth2Provider
 var OAuth2DefaultCustomURLMappings = map[string]*oauth2.CustomURLMapping{
-	"github": OAuth2Providers["github"].CustomURLMapping,
-	"gitlab": OAuth2Providers["gitlab"].CustomURLMapping,
-	"gitea":  OAuth2Providers["gitea"].CustomURLMapping,
+	"github":    OAuth2Providers["github"].CustomURLMapping,
+	"gitlab":    OAuth2Providers["gitlab"].CustomURLMapping,
+	"gitea":     OAuth2Providers["gitea"].CustomURLMapping,
+	"nextcloud": OAuth2Providers["nextcloud"].CustomURLMapping,
 }
 
 // GetActiveOAuth2ProviderLoginSources returns all actived LoginOAuth2 sources

modules/auth/oauth2/oauth2.go

@@ -22,6 +22,7 @@ import (
 	"github.com/markbates/goth/providers/github"
 	"github.com/markbates/goth/providers/gitlab"
 	"github.com/markbates/goth/providers/google"
+	"github.com/markbates/goth/providers/nextcloud"
 	"github.com/markbates/goth/providers/openidConnect"
 	"github.com/markbates/goth/providers/twitter"
 	"github.com/satori/go.uuid"
@@ -192,6 +193,22 @@ func createProvider(providerName, providerType, clientID, clientSecret, openIDCo
 			}
 		}
 		provider = gitea.NewCustomisedURL(clientID, clientSecret, callbackURL, authURL, tokenURL, profileURL)
+	case "nextcloud":
+		authURL := nextcloud.AuthURL
+		tokenURL := nextcloud.TokenURL
+		profileURL := nextcloud.ProfileURL
+		if customURLMapping != nil {
+			if len(customURLMapping.AuthURL) > 0 {
+				authURL = customURLMapping.AuthURL
+			}
+			if len(customURLMapping.TokenURL) > 0 {
+				tokenURL = customURLMapping.TokenURL
+			}
+			if len(customURLMapping.ProfileURL) > 0 {
+				profileURL = customURLMapping.ProfileURL
+			}
+		}
+		provider = nextcloud.NewCustomisedURL(clientID, clientSecret, callbackURL, authURL, tokenURL, profileURL)
 	}
 
 	// always set the name if provider is created so we can support multiple setups of 1 provider
@@ -211,6 +228,8 @@ func GetDefaultTokenURL(provider string) string {
 		return gitlab.TokenURL
 	case "gitea":
 		return gitea.TokenURL
+	case "nextcloud":
+		return nextcloud.TokenURL
 	}
 	return ""
 }
@@ -224,6 +243,8 @@ func GetDefaultAuthURL(provider string) string {
 		return gitlab.AuthURL
 	case "gitea":
 		return gitea.AuthURL
+	case "nextcloud":
+		return nextcloud.AuthURL
 	}
 	return ""
 }
@@ -237,6 +258,8 @@ func GetDefaultProfileURL(provider string) string {
 		return gitlab.ProfileURL
 	case "gitea":
 		return gitea.ProfileURL
+	case "nextcloud":
+		return nextcloud.ProfileURL
 	}
 	return ""
 }

options/locale/locale_en-US.ini

@@ -1927,6 +1927,7 @@ auths.tips.oauth2.general = OAuth2 Authentication
 auths.tips.oauth2.general.tip = When registering a new OAuth2 authentication, the callback/redirect URL should be: <host>/user/oauth2/<Authentication Name>/callback
 auths.tip.oauth2_provider = OAuth2 Provider
 auths.tip.bitbucket = Register a new OAuth consumer on https://bitbucket.org/account/user/<your username>/oauth-consumers/new and add the permission 'Account' - 'Read'
+auths.tip.nextcloud = Register a new OAuth consumer on your instance using the following menu "Settings -> Security -> OAuth 2.0 client"
 auths.tip.dropbox = Create a new application at https://www.dropbox.com/developers/apps
 auths.tip.facebook = Register a new application at https://developers.facebook.com/apps and add the product "Facebook Login"
 auths.tip.github = Register a new OAuth application on https://github.com/settings/applications/new

public/img/auth/nextcloud.png

@@ -115,6 +115,8 @@
 				<span>{{.i18n.Tr "admin.auths.tip.discord"}}</span>
 				<li>Gitea</li>
 				<span>{{.i18n.Tr "admin.auths.tip.gitea"}}</span>
+				<li>Nextcloud</li>
+				<span>{{.i18n.Tr "admin.auths.tip.nextcloud"}}</span>
 			</div>
 		</div>
 	</div>