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path_users.go
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path_users.go
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package userpass
import (
"fmt"
"strings"
"time"
"github.com/hashicorp/vault/logical"
"github.com/hashicorp/vault/logical/framework"
"golang.org/x/crypto/bcrypt"
)
func pathUsers(b *backend) *framework.Path {
return &framework.Path{
Pattern: "users/" + framework.GenericNameRegex("name"),
Fields: map[string]*framework.FieldSchema{
"name": &framework.FieldSchema{
Type: framework.TypeString,
Description: "Username for this user.",
},
"password": &framework.FieldSchema{
Type: framework.TypeString,
Description: "Password for this user.",
},
"policies": &framework.FieldSchema{
Type: framework.TypeString,
Description: "Comma-separated list of policies",
},
"ttl": &framework.FieldSchema{
Type: framework.TypeString,
Default: "",
Description: "The lease duration which decides login expiration",
},
"max_ttl": &framework.FieldSchema{
Type: framework.TypeString,
Default: "",
Description: "Maximum duration after which login should expire",
},
},
Callbacks: map[logical.Operation]framework.OperationFunc{
logical.DeleteOperation: b.pathUserDelete,
logical.ReadOperation: b.pathUserRead,
logical.UpdateOperation: b.pathUserWrite,
},
HelpSynopsis: pathUserHelpSyn,
HelpDescription: pathUserHelpDesc,
}
}
func (b *backend) User(s logical.Storage, n string) (*UserEntry, error) {
entry, err := s.Get("user/" + strings.ToLower(n))
if err != nil {
return nil, err
}
if entry == nil {
return nil, nil
}
var result UserEntry
if err := entry.DecodeJSON(&result); err != nil {
return nil, err
}
return &result, nil
}
func (b *backend) pathUserDelete(
req *logical.Request, d *framework.FieldData) (*logical.Response, error) {
err := req.Storage.Delete("user/" + strings.ToLower(d.Get("name").(string)))
if err != nil {
return nil, err
}
return nil, nil
}
func (b *backend) pathUserRead(
req *logical.Request, d *framework.FieldData) (*logical.Response, error) {
user, err := b.User(req.Storage, strings.ToLower(d.Get("name").(string)))
if err != nil {
return nil, err
}
if user == nil {
return nil, nil
}
return &logical.Response{
Data: map[string]interface{}{
"policies": strings.Join(user.Policies, ","),
},
}, nil
}
func (b *backend) pathUserWrite(
req *logical.Request, d *framework.FieldData) (*logical.Response, error) {
name := strings.ToLower(d.Get("name").(string))
password := d.Get("password").(string)
policies := strings.Split(d.Get("policies").(string), ",")
for i, p := range policies {
policies[i] = strings.TrimSpace(p)
}
// Generate a hash of the password
hash, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
if err != nil {
return nil, err
}
ttlStr := d.Get("ttl").(string)
maxTTLStr := d.Get("max_ttl").(string)
ttl, maxTTL, err := b.SanitizeTTL(ttlStr, maxTTLStr)
if err != nil {
return logical.ErrorResponse(fmt.Sprintf("err: %s", err)), nil
}
// Store it
entry, err := logical.StorageEntryJSON("user/"+name, &UserEntry{
PasswordHash: hash,
Policies: policies,
TTL: ttl,
MaxTTL: maxTTL,
})
if err != nil {
return nil, err
}
if err := req.Storage.Put(entry); err != nil {
return nil, err
}
return nil, nil
}
type UserEntry struct {
// Password is deprecated in Vault 0.2 in favor of
// PasswordHash, but is retained for backwards compatibilty.
Password string
// PasswordHash is a bcrypt hash of the password. This is
// used instead of the actual password in Vault 0.2+.
PasswordHash []byte
Policies []string
// Duration after which the user will be revoked unless renewed
TTL time.Duration
// Maximum duration for which user can be valid
MaxTTL time.Duration
}
const pathUserHelpSyn = `
Manage users allowed to authenticate.
`
const pathUserHelpDesc = `
This endpoint allows you to create, read, update, and delete users
that are allowed to authenticate.
Deleting a user will not revoke auth for prior authenticated users
with that name. To do this, do a revoke on "login/<username>" for
the username you want revoked. If you don't need to revoke login immediately,
then the next renew will cause the lease to expire.
`