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package tokens
import (
"net/http"
"github.com/rackspace/gophercloud"
)
// Scope allows a created token to be limited to a specific domain or project.
type Scope struct {
ProjectID string
ProjectName string
DomainID string
DomainName string
}
func subjectTokenHeaders(c *gophercloud.ServiceClient, subjectToken string) map[string]string {
return map[string]string{
"X-Subject-Token": subjectToken,
}
}
// AuthOptionsV3er describes any argument that may be passed to the Create call.
type AuthOptionsV3er interface {
// ToTokenCreateMap assembles the Create request body, returning an error if parameters are
// missing or inconsistent.
ToAuthOptionsV3Map(c *gophercloud.ServiceClient, scope *Scope) (map[string]interface{}, error)
}
// AuthOptions wraps a gophercloud AuthOptions in order to adhere to the AuthOptionsV3er
// interface.
type AuthOptions struct {
gophercloud.AuthOptions
}
func (options AuthOptions) ToAuthOptionsV3Map(c *gophercloud.ServiceClient, scope *Scope) (map[string]interface{}, error) {
// tokens3.Create logic
// Populate the request structure based on the provided arguments. Create and return an error
// if insufficient or incompatible information is present.
authMap := make(map[string]interface{})
// Test first for unrecognized arguments.
if options.APIKey != "" {
return nil, ErrAPIKeyProvided
}
if options.TenantID != "" {
return nil, ErrTenantIDProvided
}
if options.TenantName != "" {
return nil, ErrTenantNameProvided
}
if options.Password == "" {
if options.TokenID != "" {
c.TokenID = options.TokenID
}
if c.TokenID != "" {
// Because we aren't using password authentication, it's an error to also provide any of the user-based authentication
// parameters.
if options.Username != "" {
return nil, ErrUsernameWithToken
}
if options.UserID != "" {
return nil, ErrUserIDWithToken
}
// Configure the request for Token authentication.
authMap["identity"] = map[string]interface{}{
"methods": []string{"token"},
"token": map[string]interface{}{
"id": c.TokenID,
},
}
} else {
// If no password or token ID are available, authentication can't continue.
return nil, ErrMissingPassword
}
} else {
// Password authentication.
// At least one of Username and UserID must be specified.
if options.Username == "" && options.UserID == "" {
return nil, ErrUsernameOrUserID
}
if options.Username != "" {
// If Username is provided, UserID may not be provided.
if options.UserID != "" {
return nil, ErrUsernameOrUserID
}
// Either DomainID or DomainName must also be specified.
if options.DomainID == "" && options.DomainName == "" {
return nil, ErrDomainIDOrDomainName
}
if options.DomainID != "" {
if options.DomainName != "" {
return nil, ErrDomainIDOrDomainName
}
// Configure the request for Username and Password authentication with a DomainID.
authMap["identity"] = map[string]interface{}{
"methods": []string{"password"},
"password" : map[string]interface{}{
"user": map[string]interface{}{
"name": &options.Username,
"password": options.Password,
"domain": map[string]interface{}{
"id": &options.DomainID,
},
},
},
}
}
if options.DomainName != "" {
// Configure the request for Username and Password authentication with a DomainName.
authMap["identity"] = map[string]interface{}{
"methods": []string{"password"},
"password": map[string]interface{}{
"user": map[string]interface{}{
"name": &options.Username,
"password": options.Password,
"domain": map[string]interface{}{
"name": &options.DomainName,
},
},
},
}
}
}
if options.UserID != "" {
// If UserID is specified, neither DomainID nor DomainName may be.
if options.DomainID != "" {
return nil, ErrDomainIDWithUserID
}
if options.DomainName != "" {
return nil, ErrDomainNameWithUserID
}
// Configure the request for UserID and Password authentication.
authMap["identity"] = map[string]interface{}{
"methods": []string{"password"},
"password" : map[string]interface{}{
"user": map[string]interface{}{
"id": &options.UserID,
"password": options.Password,
},
},
}
}
}
// Add a "scope" element if a Scope has been provided.
if scope != nil {
if scope.ProjectName != "" {
// ProjectName provided: either DomainID or DomainName must also be supplied.
// ProjectID may not be supplied.
if scope.DomainID == "" && scope.DomainName == "" {
return nil, ErrScopeDomainIDOrDomainName
}
if scope.ProjectID != "" {
return nil, ErrScopeProjectIDOrProjectName
}
if scope.DomainID != "" {
// ProjectName + DomainID
authMap["scope"] = map[string]interface{}{
"project": map[string]interface{}{
"domain": map[string]interface{}{
"id": &scope.DomainID,
},
"name": &scope.ProjectName,
},
}
}
if scope.DomainName != "" {
// ProjectName + DomainName
authMap["scope"] = map[string]interface{}{
"project": map[string]interface{}{
"domain": map[string]interface{}{
"name": &scope.DomainName,
},
"name": &scope.ProjectName,
},
}
}
} else if scope.ProjectID != "" {
// ProjectID provided. ProjectName, DomainID, and DomainName may not be provided.
if scope.DomainID != "" {
return nil, ErrScopeProjectIDAlone
}
if scope.DomainName != "" {
return nil, ErrScopeProjectIDAlone
}
// ProjectID
authMap["scope"] = map[string]interface{}{
"project": map[string]interface{}{
"id": &scope.ProjectID,
},
}
} else if scope.DomainID != "" {
// DomainID provided. ProjectID, ProjectName, and DomainName may not be provided.
if scope.DomainName != "" {
return nil, ErrScopeDomainIDOrDomainName
}
// DomainID
authMap["scope"] = map[string]interface{}{
"domain": map[string]interface{}{
"id": &scope.DomainID,
},
}
} else if scope.DomainName != "" {
return nil, ErrScopeDomainName
} else {
return nil, ErrScopeEmpty
}
}
return map[string]interface{}{"auth": authMap}, nil
}
// Create authenticates and either generates a new token, or changes the Scope of an existing token.
func Create(c *gophercloud.ServiceClient, options AuthOptionsV3er, scope *Scope) CreateResult {
request, err := options.ToAuthOptionsV3Map(c, scope)
if err != nil {
return CreateResult{commonResult{gophercloud.Result{Err: err}}}
}
var result CreateResult
var response *http.Response
response, result.Err = c.Post(tokenURL(c), request, &result.Body, nil)
if result.Err != nil {
return result
}
result.Header = response.Header
return result
}
// Get validates and retrieves information about another token.
func Get(c *gophercloud.ServiceClient, token string) GetResult {
var result GetResult
var response *http.Response
response, result.Err = c.Get(tokenURL(c), &result.Body, &gophercloud.RequestOpts{
MoreHeaders: subjectTokenHeaders(c, token),
OkCodes: []int{200, 203},
})
if result.Err != nil {
return result
}
result.Header = response.Header
return result
}
// Validate determines if a specified token is valid or not.
func Validate(c *gophercloud.ServiceClient, token string) (bool, error) {
response, err := c.Request("HEAD", tokenURL(c), gophercloud.RequestOpts{
MoreHeaders: subjectTokenHeaders(c, token),
OkCodes: []int{204, 404},
})
if err != nil {
return false, err
}
return response.StatusCode == 204, nil
}
// Revoke immediately makes specified token invalid.
func Revoke(c *gophercloud.ServiceClient, token string) RevokeResult {
var res RevokeResult
_, res.Err = c.Delete(tokenURL(c), &gophercloud.RequestOpts{
MoreHeaders: subjectTokenHeaders(c, token),
})
return res
}
|
