IPWorks Auth 2020 JavaScript Edition

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OpenID Class

Properties   Methods   Events   Configuration Settings   Errors  

The OpenID class is used to verify the identify of a user as well as get basic profile information.

Syntax

ipworksauth.openid()

Remarks

The OpenID class implements an OpenID Connect 1.0 relying party (client) capable of authenticating a user and retrieving user information. OpenID Connect 1.0 is a simple identity layer on top of OAuth 2.0 and re-uses much of the functionality and concepts defined by OAuth 2.0.

To begin using the class you will first need to register your application with the service you want to use. During this process you should obtain a ClientId and ClientSecret. The following sections discuss the typical steps to verify the identify of a user and obtain profile information.

Get the Discovery Document

Many OpenID providers provide information via a Discovery Document. The Discovery Document defines information such as the endpoint URLs for authentication, tokens, and user information requests. In addition details about the allowed parameters such as supported authorization scopes are defined in this document. The document at a URL which can be fetched and parsed by calling the GetDiscoveryDoc method.

The discovery document URL is typically published by an OpenID provider and must be known before calling this method. The format of the URL is standardized and typically takes the form:

https://www.youropenidserver.com/.well-known/openid-configuration

Call GetDiscoveryDoc before calling GetAuthorization to populate the class properties with information required to complete the authorization. The retrieved information includes endpoint URLs as well as the OpenID public certificates used to verify the signature on the ID token. After calling this method the following properties are populated:

The above values may be stored, and later populated from the stored values, to avoid the requirement of calling GetDiscoveryDoc on subsequent authorization requests.

The following discovery document fields are populated after GetDiscoveryDoc returns:

  • DiscoveryDocDetailsAuthorizationURL
  • DiscoveryDocDetailsClaimsParamSupported
  • DiscoveryDocDetailsIssuer
  • DiscoveryDocDetailsSignerCertURL
  • DiscoveryDocDetailsRegistrationURL
  • DiscoveryDocDetailsServiceDocsURL
  • DiscoveryDocDetailsSupportedClaims
  • DiscoveryDocDetailsSupportedDisplays
  • DiscoveryDocDetailsSupportedGrantTypes
  • DiscoveryDocDetailsSupportedResponseTypes
  • DiscoveryDocDetailsSupportedScopes
  • DiscoveryDocDetailsTokenURL
  • DiscoveryDocDetailsUserInfoURL

To access values not automatically parsed by the class the XPath configuration setting may be set to retrieve a specific value. Alternatively the RawJSON setting returns the entire JSON document which may be parsed separately.

Note: Calling GetDiscoveryDoc is not mandatory. If server information was stored from a previous call or is otherwise known ahead of time the following properties may be set in place of calling GetDiscoveryDoc:

Examples of the above points:

openid.GetDiscoveryDoc("https://accounts.google.com/.well-known/openid-configuration");
// ... or ...
openid.ServerAuthURL = "https://accounts.google.com/o/oauth2/v2/auth";
openid.ServerTokenURL = "https://oauth2.googleapis.com/token";
openid.ServerUserInfoURL = "https://openidconnect.googleapis.com/v1/userinfo";
openid.SignerCertURL = "https://www.googleapis.com/oauth2/v3/certs";
// ... or ...
string rawjson = openid.Config("RawJSON");

Get Authorization

Before calling GetAuthorization the class may be configured for one of several flows defined by the GrantType property. These flows determine which information is returned by the authorization server and which information (if any) is returned by the token server.

Possible values for GrantType are:

  • 0 (Authorization Code - Default)
  • 1 (Implicit)
  • 2 (Hybrid)

When using 0 (Authorization Code Flow - Default) an authorization code is returned from the ServerAuthURL and the class automatically contacts the ServerTokenURL exchanges the authorization code for an ID token and access token.

When using 1 (Implicit Flow) the ServerAuthURL returns an ID token and access token directly. This is only recommended for implementations that are in-browser as this potentially exposes the tokens to the end-user and user agent itself.

When using 2 (Hybrid Flow) an authorization code and potentially one or more tokens are returned by the ServerAuthURL. The class will automatically contact the ServerTokenURL to exchange the authorization code for an ID token and access token.

When GrantType and any other optional settings are set as desired, call GetAuthorization.

GetAuthorization performs several operations automatically depending on the value of ClientProfile. Please see the introduction section for the OpenID class for a detailed overview of the typical scenarios.

After authorization is complete UserDetails will be populated with the claims parsed from the ID token. This method also returns an authorization string. The authorization string grants access to additional resources as requested via the AuthorizationScope property. If access to another resource was requested the access token returned here may be set in the Authorization property of any other class (or passed as the value of the HTTP Authorization header).

GetUserInfo may be called after calling this method.

The following properties are applicable when calling this method:

For the default Authorization Code flow GetAuthorization could work like this:

openid.ClientId = "client id";
openid.ClientSecret = "client secret";
openid.AuthorizationScope += " profile email"; // default value is 'openid'
openid.State = "application state";
string authToken = openid.GetAuthorization();

Get User Info

When GetAuthorization returns the UserDetails property is populated with information about the user as returned in the ID token from the authorization server. An additional operation, GetUserInfo may optionally be called to query the ServerUserInfoURL for information about the user.

Before calling GetUserInfo method a successful call to GetAuthorization must be made. The access token returned by GetAuthorization is used by the OpenID provider at ServerUserInfoURL to identify the user for which claims are being retrieved.

When this method is called the class requests the claims about the user from the ServerUserInfoURL. The resulting claims are available in the UserDetail* properties.

Note: The GetUserInfo method will populate the UserDetail* properties with the claims returned in the ID token during the authorization process. This method may not need to be called in order to access the desired claims about the user.


openid.GetUserInfo();
// ... use the user info in the remainder of your application ...

Client Profile Notes

The ClientProfile defines the environment in which the class is being used, and controls how the class behaves in order to best suit that environment. Choose the profile that is closest to the runtime environment.

The following client types are currently supported by the class:

  • Application (desktop application)
  • WebServer (server side application such as a web site)
  • Device (an application without browser access such as a game console)
  • Mobile (phone or tablet application)
  • Browser (javascript application)
  • JWT (server to server authentication using a JWT bearer token such as Google service account authentication)

Application Client Type

The application client type is applicable to applications that are run by the user directly. For instance a windows form application would use the application client type. To authorize your application (client) using the application client type follow the steps below.

First, set ClientProfile to cfApplication. This defines the client type the class will use. Set the ClientId, ClientSecret, ServerAuthURL, and ServerTokenURL to the values you obtained when registering your application.

Next, call GetAuthorization to begin the authorization process. When GetAuthorization is called the class will build the URL to which the user will be directed and fire the LaunchBrowser event. The class will then launch the browser using the command and URL shown in the LaunchBrowser event.

The user will authenticate to the service, and then be redirected back to an embedded web server that was automatically started when GetAuthorization was called. At this time the ReturnURL event will fire. This event provides an opportunity to provide a custom response to your user that they will see in their browser.

The class will then automatically exchange the grant that was returned by the authorization server for the access token using the HTTP endpoint specified in ServerTokenURL.

The authorization is now complete and the GetAuthorization method will return the authorization string. To use the authorization string with any of our classs simply pass this value to the Authorization property before making the request.

A simple example is shown below.

component.ClientId = "MyId";
component.ClientSecret = "MyPassword";
component.ServerAuthURL = "https://accounts.google.com/o/oauth2/auth";
component.ServerTokenURL = "https://accounts.google.com/o/oauth2/token";
HTTP.Authorization = component.GetAuthorization();
HTTP.Get("https://www.googleapis.com/oauth2/v1/userinfo");

WebServer Client Type

The WebServer client type is applicable to applications that are run on the server side where the user uses the application from a web browser. To authorize your application (client) using this client type follow the steps below.

First, set ClientProfile to cfWebServer. This defines the client type the component will use. Set the ClientId, ClientSecret, ServerAuthURL, and ServerTokenURL to the values you obtained when registering your application. Set ReturnURL to the page on your site that will be the endpoint the user is redirected back to after authentication.

Next, call GetAuthorizationURL. This will return a URL to which the user should be redirected. Redirect the user to this URL.

After the user authenticates and is returned to the page on your site specified by ReturnURL, parse the "code" query string parameter from the incoming request. Set AuthorizationCode to this value.

Call GetAuthorization to exchange the code specified in AuthorizationCode for a token from the server specified by ServerTokenURL. GetAuthorization returns the authorization string. To use the authorization string with any of our components simply pass this value to the Authorization property before making the request.

For additional details for less common profile types please see ClientProfile.

Property List


The following is the full list of the properties of the class with short descriptions. Click on the links for further details.

AccessTokenThe access token returned by the authorization server.
AuthorizationCodeThe authorization code that is exchanged for an access token.
AuthorizationScopeThe authorization scope used during authorization.
ClientIdThe id of the client assigned when registering the application.
ClientProfileThe type of client that is requesting authorization.
ClientSecretThe secret value for the client assigned when registering the application.
ConnectedShows whether the class is connected.
CookiesCollection of cookies.
DiscoveryDocDetailsDetails about the OpenID provider's discovery document.
FirewallA set of properties related to firewall access.
FollowRedirectsDetermines what happens when the server issues a redirect.
GrantTypeThe grant type defining the authentication flow.
IdleThe current status of the class.
LocalHostThe name of the local host or user-assigned IP interface through which connections are initiated or accepted.
OtherHeadersOther headers as determined by the user (optional).
ParamsThe parameters to be included in the request to the authorization server, or received in the response.
ProxyA set of properties related to proxy access.
RefreshTokenSpecifies the refresh token received from or sent to the authorization server.
ReturnURLThe URL where the user (browser) returns after authenticating.
ServerAuthURLThe URL of the authorization server.
ServerTokenURLThe URL used to obtain the access token.
ServerUserInfoURLThe URL of the OpenID provider's user info endpoint.
SignerCertThe JWT public signer certificate.
SignerCertURLThe URL of the OpenID provider's signing certificate.
SSLAcceptServerCertInstructs the class to unconditionally accept the server certificate that matches the supplied certificate.
SSLCertThe certificate to be used during SSL negotiation.
SSLServerCertThe server certificate for the last established connection.
StateOpaque value used to maintain state between the request and response.
TimeoutA timeout for the class.
TransferredDataThe contents of the last response from the server.
TransferredHeadersThe full set of headers as received from the server.
UserDetailsThe claims about the user.
WebServerPortThe local port on which the embedded web server listens.
WebServerSSLCertThe certificate with private key to use when SSL is enabled.
WebServerSSLEnabledWhether the web server requires SSL connections.

Method List


The following is the full list of the methods of the class with short descriptions. Click on the links for further details.

AddCookieAdds a cookie and the corresponding value to the outgoing request headers.
AddParamAdds a name-value pair to the query string parameters of outgoing request.
ConfigSets or retrieves a configuration setting.
DoEventsProcesses events from the internal message queue.
GetAuthorizationGets the authorization string required to access the protected resource.
GetAuthorizationURLBuilds and returns the URL to which the user should be re-directed for authorization.
GetDiscoveryDocGets the OpenID Discovery Document.
GetUserInfoRetrieves claims about the user.
InterruptInterrupt the current method.
ResetReset the class.
StartWebServerStarts the embedded web server.
StopWebServerStops the embedded web server.

Event List


The following is the full list of the events fired by the class with short descriptions. Click on the links for further details.

ConnectedFired immediately after a connection completes (or fails).
ConnectionStatusFired to indicate changes in connection state.
DisconnectedFired when a connection is closed.
EndTransferFired when a document finishes transferring.
ErrorInformation about errors during data delivery.
HeaderFired every time a header line comes in.
LaunchBrowserFires before launching a browser with the authorization URL.
LogFires once for each log message.
RedirectFired when a redirection is received from the server.
ReturnURLFires when the user is redirected to the embedded web server.
SetCookieFired for every cookie set by the server.
SSLServerAuthenticationFired after the server presents its certificate to the client.
SSLStatusShows the progress of the secure connection.
StartTransferFired when a document starts transferring (after the headers).
StatusFired when the HTTP status line is received from the server.
TransferFired while a document transfers (delivers document).

Configuration Settings


The following is a list of configuration settings for the class with short descriptions. Click on the links for further details.

DisplayThe requested display options to present to the end user.
IDTokenThe raw ID token returned after authorization.
IDTokenHintAn ID token value to be used as a hint about the user's session.
LoginHintThe login hint sent to the authorization server.
PromptThe requested conditions under which the authorization server prompts for login.
RawJSONA JSON string holding the last response.
ResponseTypeThe value of the response_type request parameter.
XChildCountThe number of child elements of the current element.
XChildName[i]The name of the child element.
XChildXText[i]The inner text of the child element.
XElementThe name of the current element.
XParentThe parent of the current element.
XPathProvides a way to point to a specific element in the returned XML or JSON response.
XSubTreeA snapshot of the current element in the document.
XTextThe text of the current element.
AccessTokenExpThe lifetime of the access token.
AuthorizationTokenTypeThe type of access token returned.
AuthorizationURLSpecifies the URL used for authorization.
BrowserResponseTimeoutSpecifies the amount of time to wait for a response from the browser.
CodeChallengeMethodThe code challenge method to use (if any).
DeviceUserCodeThe device's user code when the ClientProfile is set to cfDevice.
FormVarCountSpecifies the number of additional form variables to include in the request.
FormVarName[i]Specifies the form variable name at the specified index.
FormVarValue[i]Specifies the form variable value at the specified index.
IncludeEmptyRedirectURIWhether an empty redirect_uri parameter is included in requests.
JWTAudienceThe JWT audience when the ClientProfile is set to cfJWT.
JWTCertStoreThe name of the certificate store for the JWT signing certificate.
JWTCertStorePasswordThe JWT signing certificate password.
JWTCertStoreTypeThe type of certificate store.
JWTCertSubjectThe JWT signing certificate subject.
JWTIssuerThe JWT issuer when the ClientProfile is set to cfJWT.
JWTJSONKeyThe file path of the JWT JSON Key, or a string containing its content.
JWTSignatureAlgorithmThe signature algorithm used to sign the JWT.
JWTSubjectThe subject field in the JWT.
JWTValidityTimeThe amount of time in seconds for which the assertion in the JWT is valid.
Office365ServiceAPIVersionThe API version of the Office 365 service being discovered.
Office365ServiceCapabilityThe API capability of the Office 365 service being discovered.
Office365ServiceEndpointThe Office 365 endpoint for the service that matches the criteria specified.
PollingIntervalThe interval in seconds between polling requests when the device client type is used.
ReUseWebServerDetermines if the same server instance is used between requests.
TokenInfoFieldCountThe number of fields in the tokeninfo service response.
TokenInfoFieldName[i]The name of the tokeninfo service response field.
TokenInfoFieldValue[i]The value of the tokeninfo service response field.
TokenInfoURLThe URL of the tokeninfo service.
ValidateTokenValidates the specified access token with a tokeninfo service.
WebServerFailedResponseThe custom response that will be displayed to the user if authentication failed.
WebServerHostThe hostname used by the embedded web server displayed in the ReturnURL.
WebServerResponseThe custom response that will be displayed to the user.
AcceptEncodingUsed to tell the server which types of content encodings the client supports.
AllowHTTPCompressionThis property enables HTTP compression for receiving data.
AllowHTTPFallbackWhether HTTP/2 connections are permitted to fallback to HTTP/1.1.
AppendWhether to append data to LocalFile.
AuthorizationThe Authorization string to be sent to the server.
BytesTransferredContains the number of bytes transferred in the response data.
ChunkSizeSpecifies the chunk size in bytes when using chunked encoding.
CompressHTTPRequestSet to true to compress the body of a PUT or POST request.
EncodeURLIf set to true the URL will be encoded by the class.
FollowRedirectsDetermines what happens when the server issues a redirect.
GetOn302RedirectIf set to true the class will perform a GET on the new location.
HTTP2HeadersWithoutIndexingHTTP2 headers that should not update the dynamic header table with incremental indexing.
HTTPVersionThe version of HTTP used by the class.
IfModifiedSinceA date determining the maximum age of the desired document.
KeepAliveDetermines whether the HTTP connection is closed after completion of the request.
KerberosSPNThe Service Principal Name for the Kerberos Domain Controller.
LogLevelThe level of detail that is logged.
MaxRedirectAttemptsLimits the number of redirects that are followed in a request.
NegotiatedHTTPVersionThe negotiated HTTP version.
OtherHeadersOther headers as determined by the user (optional).
ProxyAuthorizationThe authorization string to be sent to the proxy server.
ProxyAuthSchemeThe authorization scheme to be used for the proxy.
ProxyPasswordA password if authentication is to be used for the proxy.
ProxyPortPort for the proxy server (default 80).
ProxyServerName or IP address of a proxy server (optional).
ProxyUserA user name if authentication is to be used for the proxy.
SentHeadersThe full set of headers as sent by the client.
StatusLineThe first line of the last response from the server.
TransferredDataThe contents of the last response from the server.
TransferredDataLimitThe maximum number of incoming bytes to be stored by the class.
TransferredHeadersThe full set of headers as received from the server.
TransferredRequestThe full request as sent by the client.
UseChunkedEncodingEnables or Disables HTTP chunked encoding for transfers.
UseIDNsWhether to encode hostnames to internationalized domain names.
UserAgentInformation about the user agent (browser).
ConnectionTimeoutSets a separate timeout value for establishing a connection.
FirewallAutoDetectTells the class whether or not to automatically detect and use firewall system settings, if available.
FirewallHostName or IP address of firewall (optional).
FirewallPasswordPassword to be used if authentication is to be used when connecting through the firewall.
FirewallPortThe TCP port for the FirewallHost;.
FirewallTypeDetermines the type of firewall to connect through.
FirewallUserA user name if authentication is to be used connecting through a firewall.
KeepAliveIntervalThe retry interval, in milliseconds, to be used when a TCP keep-alive packet is sent and no response is received.
KeepAliveTimeThe inactivity time in milliseconds before a TCP keep-alive packet is sent.
LingerWhen set to True, connections are terminated gracefully.
LingerTimeTime in seconds to have the connection linger.
LocalHostThe name of the local host through which connections are initiated or accepted.
LocalPortThe port in the local host where the class binds.
MaxLineLengthThe maximum amount of data to accumulate when no EOL is found.
MaxTransferRateThe transfer rate limit in bytes per second.
ProxyExceptionsListA semicolon separated list of hosts and IPs to bypass when using a proxy.
TCPKeepAliveDetermines whether or not the keep alive socket option is enabled.
TcpNoDelayWhether or not to delay when sending packets.
UseIPv6Whether to use IPv6.
AbsoluteTimeoutDetermines whether timeouts are inactivity timeouts or absolute timeouts.
FirewallDataUsed to send extra data to the firewall.
InBufferSizeThe size in bytes of the incoming queue of the socket.
OutBufferSizeThe size in bytes of the outgoing queue of the socket.
BuildInfoInformation about the product's build.
CodePageThe system code page used for Unicode to Multibyte translations.
LicenseInfoInformation about the current license.
UseInternalSecurityAPITells the class whether or not to use the system security libraries or an internal implementation.

 
 
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IPWorks Auth 2020 JavaScript Edition - Version 20.0 [Build 7721]