You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
58 lines
2.1 KiB
58 lines
2.1 KiB
8 years ago
|
package openid
|
||
|
|
|
||
|
|
// 7.3.1. Discovered Information
|
||
|
|
// Upon successful completion of discovery, the Relying Party will
|
||
|
|
// have one or more sets of the following information (see the
|
||
|
|
// Terminology section for definitions). If more than one set of the
|
||
|
|
// following information has been discovered, the precedence rules
|
||
|
|
// defined in [XRI_Resolution_2.0] are to be applied.
|
||
|
|
// - OP Endpoint URL
|
||
|
|
// - Protocol Version
|
||
|
|
// If the end user did not enter an OP Identifier, the following
|
||
|
|
// information will also be present:
|
||
|
|
// - Claimed Identifier
|
||
|
|
// - OP-Local Identifier
|
||
|
|
// If the end user entered an OP Identifier, there is no Claimed
|
||
|
|
// Identifier. For the purposes of making OpenID Authentication
|
||
|
|
// requests, the value
|
||
|
|
// "http://specs.openid.net/auth/2.0/identifier_select" MUST be
|
||
|
|
// used as both the Claimed Identifier and the OP-Local Identifier
|
||
|
|
// when an OP Identifier is entered.
|
||
|
|
func Discover(id string) (opEndpoint, opLocalID, claimedID string, err error) {
|
||
|
|
return defaultInstance.Discover(id)
|
||
|
|
}
|
||
|
|
|
||
|
|
func (oid *OpenID) Discover(id string) (opEndpoint, opLocalID, claimedID string, err error) {
|
||
|
|
// From OpenID specs, 7.2: Normalization
|
||
|
|
if id, err = Normalize(id); err != nil {
|
||
|
|
return
|
||
|
|
}
|
||
|
|
|
||
|
|
// From OpenID specs, 7.3: Discovery.
|
||
|
|
|
||
|
|
// If the identifier is an XRI, [XRI_Resolution_2.0] will yield an
|
||
|
|
// XRDS document that contains the necessary information. It
|
||
|
|
// should also be noted that Relying Parties can take advantage of
|
||
|
|
// XRI Proxy Resolvers, such as the one provided by XDI.org at
|
||
|
|
// http://www.xri.net. This will remove the need for the RPs to
|
||
|
|
// perform XRI Resolution locally.
|
||
|
|
|
||
|
|
// XRI not supported.
|
||
|
|
|
||
|
|
// If it is a URL, the Yadis protocol [Yadis] SHALL be first
|
||
|
|
// attempted. If it succeeds, the result is again an XRDS
|
||
|
|
// document.
|
||
|
|
if opEndpoint, opLocalID, err = yadisDiscovery(id, oid.urlGetter); err != nil {
|
||
|
|
// If the Yadis protocol fails and no valid XRDS document is
|
||
|
|
// retrieved, or no Service Elements are found in the XRDS
|
||
|
|
// document, the URL is retrieved and HTML-Based discovery SHALL be
|
||
|
|
// attempted.
|
||
|
|
opEndpoint, opLocalID, claimedID, err = htmlDiscovery(id, oid.urlGetter)
|
||
|
|
}
|
||
|
|
|
||
|
|
if err != nil {
|
||
|
|
return "", "", "", err
|
||
|
|
}
|
||
|
|
return
|
||
|
|
}
|