support CAS identity provider

Signed-off-by: hongming <talonwan@yunify.com>

vendor/gopkg.in/cas.v2/xml_service_response.go

@@ -0,0 +1,95 @@
+package cas
+
+import (
+	"encoding/xml"
+	"time"
+)
+
+type xmlServiceResponse struct {
+	XMLName xml.Name `xml:"http://www.yale.edu/tp/cas serviceResponse"`
+
+	Failure *xmlAuthenticationFailure
+	Success *xmlAuthenticationSuccess
+}
+
+type xmlAuthenticationFailure struct {
+	XMLName xml.Name `xml:"authenticationFailure"`
+	Code    string   `xml:"code,attr"`
+	Message string   `xml:",innerxml"`
+}
+
+type xmlAuthenticationSuccess struct {
+	XMLName             xml.Name           `xml:"authenticationSuccess"`
+	User                string             `xml:"user"`
+	ProxyGrantingTicket string             `xml:"proxyGrantingTicket,omitempty"`
+	Proxies             *xmlProxies        `xml:"proxies"`
+	Attributes          *xmlAttributes     `xml:"attributes"`
+	ExtraAttributes     []*xmlAnyAttribute `xml:",any"`
+}
+
+type xmlProxies struct {
+	XMLName xml.Name `xml:"proxies"`
+	Proxies []string `xml:"proxy"`
+}
+
+func (p *xmlProxies) AddProxy(proxy string) {
+	p.Proxies = append(p.Proxies, proxy)
+}
+
+type xmlAttributes struct {
+	XMLName                                xml.Name  `xml:"attributes"`
+	AuthenticationDate                     time.Time `xml:"authenticationDate"`
+	LongTermAuthenticationRequestTokenUsed bool      `xml:"longTermAuthenticationRequestTokenUsed"`
+	IsFromNewLogin                         bool      `xml:"isFromNewLogin"`
+	MemberOf                               []string  `xml:"memberOf"`
+	UserAttributes                         *xmlUserAttributes
+	ExtraAttributes                        []*xmlAnyAttribute `xml:",any"`
+}
+
+type xmlUserAttributes struct {
+	XMLName       xml.Name             `xml:"userAttributes"`
+	Attributes    []*xmlNamedAttribute `xml:"attribute"`
+	AnyAttributes []*xmlAnyAttribute   `xml:",any"`
+}
+
+type xmlNamedAttribute struct {
+	XMLName xml.Name `xml:"attribute"`
+	Name    string   `xml:"name,attr,omitempty"`
+	Value   string   `xml:",innerxml"`
+}
+
+type xmlAnyAttribute struct {
+	XMLName xml.Name
+	Value   string `xml:",chardata"`
+}
+
+func (xsr *xmlServiceResponse) marshalXML(indent int) ([]byte, error) {
+	if indent == 0 {
+		return xml.Marshal(xsr)
+	}
+
+	indentStr := ""
+	for i := 0; i < indent; i++ {
+		indentStr += " "
+	}
+
+	return xml.MarshalIndent(xsr, "", indentStr)
+}
+
+func failureServiceResponse(code, message string) *xmlServiceResponse {
+	return &xmlServiceResponse{
+		Failure: &xmlAuthenticationFailure{
+			Code:    code,
+			Message: message,
+		},
+	}
+}
+
+func successServiceResponse(username, pgt string) *xmlServiceResponse {
+	return &xmlServiceResponse{
+		Success: &xmlAuthenticationSuccess{
+			User:                username,
+			ProxyGrantingTicket: pgt,
+		},
+	}
+}