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path_login.go
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path_login.go
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package ldap
import (
"context"
"fmt"
"sort"
"github.com/hashicorp/vault/helper/policyutil"
"github.com/hashicorp/vault/logical"
"github.com/hashicorp/vault/logical/framework"
)
func pathLogin(b *backend) *framework.Path {
return &framework.Path{
Pattern: `login/(?P<username>.+)`,
Fields: map[string]*framework.FieldSchema{
"username": &framework.FieldSchema{
Type: framework.TypeString,
Description: "DN (distinguished name) to be used for login.",
},
"password": &framework.FieldSchema{
Type: framework.TypeString,
Description: "Password for this user.",
},
},
Callbacks: map[logical.Operation]framework.OperationFunc{
logical.UpdateOperation: b.pathLogin,
logical.AliasLookaheadOperation: b.pathLoginAliasLookahead,
},
HelpSynopsis: pathLoginSyn,
HelpDescription: pathLoginDesc,
}
}
func (b *backend) pathLoginAliasLookahead(ctx context.Context, req *logical.Request, d *framework.FieldData) (*logical.Response, error) {
username := d.Get("username").(string)
if username == "" {
return nil, fmt.Errorf("missing username")
}
return &logical.Response{
Auth: &logical.Auth{
Alias: &logical.Alias{
Name: username,
},
},
}, nil
}
func (b *backend) pathLogin(ctx context.Context, req *logical.Request, d *framework.FieldData) (*logical.Response, error) {
username := d.Get("username").(string)
password := d.Get("password").(string)
policies, resp, groupNames, err := b.Login(ctx, req, username, password)
// Handle an internal error
if err != nil {
return nil, err
}
if resp != nil {
// Handle a logical error
if resp.IsError() {
return resp, nil
}
} else {
resp = &logical.Response{}
}
sort.Strings(policies)
resp.Auth = &logical.Auth{
Policies: policies,
Metadata: map[string]string{
"username": username,
},
InternalData: map[string]interface{}{
"password": password,
},
DisplayName: username,
LeaseOptions: logical.LeaseOptions{
Renewable: true,
},
Alias: &logical.Alias{
Name: username,
},
}
for _, groupName := range groupNames {
if groupName == "" {
continue
}
resp.Auth.GroupAliases = append(resp.Auth.GroupAliases, &logical.Alias{
Name: groupName,
})
}
return resp, nil
}
func (b *backend) pathLoginRenew(ctx context.Context, req *logical.Request, d *framework.FieldData) (*logical.Response, error) {
username := req.Auth.Metadata["username"]
password := req.Auth.InternalData["password"].(string)
loginPolicies, resp, groupNames, err := b.Login(ctx, req, username, password)
if len(loginPolicies) == 0 {
return resp, err
}
if !policyutil.EquivalentPolicies(loginPolicies, req.Auth.Policies) {
return nil, fmt.Errorf("policies have changed, not renewing")
}
resp, err = framework.LeaseExtend(0, 0, b.System())(ctx, req, d)
if err != nil {
return nil, err
}
// Remove old aliases
resp.Auth.GroupAliases = nil
for _, groupName := range groupNames {
resp.Auth.GroupAliases = append(resp.Auth.GroupAliases, &logical.Alias{
Name: groupName,
})
}
return resp, nil
}
const pathLoginSyn = `
Log in with a username and password.
`
const pathLoginDesc = `
This endpoint authenticates using a username and password. Please be sure to
read the note on escaping from the path-help for the 'config' endpoint.
`