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Auth CLI, continued

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This commit is contained in:
Philipp Heckel 2022-01-23 23:02:39 -05:00
parent 03a4e3e8e9
commit 393f95aeac
6 changed files with 183 additions and 43 deletions
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19
auth/auth.go
View file

@ -11,6 +11,8 @@ type Auther interface {
type Manager interface {
AddUser(username, password string, role Role) error
RemoveUser(username string) error
Users() ([]*User, error)
User(username string) (*User, error)
ChangePassword(username, password string) error
ChangeRole(username string, role Role) error
AllowAccess(username string, topic string, read bool, write bool) error
@ -18,8 +20,16 @@ type Manager interface {
}
type User struct {
Name string
Role Role
Name string
Pass string // hashed
Role Role
Grants []Grant
}
type Grant struct {
Topic string
Read bool
Write bool
}
type Permission int
@ -52,4 +62,7 @@ func AllowedRole(role Role) bool {
return role == RoleUser || role == RoleAdmin
}
var ErrUnauthorized = errors.New("unauthorized")
var (
ErrUnauthorized = errors.New("unauthorized")
ErrNotFound = errors.New("not found")
)

116
auth/auth_sqlite.go
View file

@ -58,17 +58,19 @@ const (
// Manager-related queries
const (
insertUser = `INSERT INTO user (user, pass, role) VALUES (?, ?, ?)`
updateUserPass = `UPDATE user SET pass = ? WHERE user = ?`
updateUserRole = `UPDATE user SET role = ? WHERE user = ?`
upsertAccess = `
insertUserQuery = `INSERT INTO user (user, pass, role) VALUES (?, ?, ?)`
selectUsernamesQuery = `SELECT user FROM user ORDER BY role, user`
selectUserTopicPermsQuery = `SELECT topic, read, write FROM access WHERE user = ?`
updateUserPassQuery = `UPDATE user SET pass = ? WHERE user = ?`
updateUserRoleQuery = `UPDATE user SET role = ? WHERE user = ?`
upsertAccessQuery = `
INSERT INTO access (user, topic, read, write)
VALUES (?, ?, ?, ?)
ON CONFLICT (user, topic) DO UPDATE SET read=excluded.read, write=excluded.write
`
deleteUser = `DELETE FROM user WHERE user = ?`
deleteAllAccess = `DELETE FROM access WHERE user = ?`
deleteAccess = `DELETE FROM access WHERE user = ? AND topic = ?`
deleteUserQuery = `DELETE FROM user WHERE user = ?`
deleteAllAccessQuery = `DELETE FROM access WHERE user = ?`
deleteAccessQuery = `DELETE FROM access WHERE user = ? AND topic = ?`
)
type SQLiteAuth struct {
@ -127,13 +129,17 @@ func (a *SQLiteAuth) Authenticate(username, password string) (*User, error) {
}
func (a *SQLiteAuth) Authorize(user *User, topic string, perm Permission) error {
if user.Role == RoleAdmin {
if user != nil && user.Role == RoleAdmin {
return nil // Admin can do everything
}
// Select the read/write permissions for this user/topic combo. The query may return two
// rows (one for everyone, and one for the user), but prioritizes the user. The value for
// user.Name may be empty (= everyone).
rows, err := a.db.Query(selectTopicPermsQuery, user.Name, topic)
var username string
if user != nil {
username = user.Name
}
rows, err := a.db.Query(selectTopicPermsQuery, username, topic)
if err != nil {
return err
}
@ -164,42 +170,118 @@ func (a *SQLiteAuth) AddUser(username, password string, role Role) error {
if err != nil {
return err
}
if _, err = a.db.Exec(insertUser, username, hash, role); err != nil {
if _, err = a.db.Exec(insertUserQuery, username, hash, role); err != nil {
return err
}
return nil
}
func (a *SQLiteAuth) RemoveUser(username string) error {
if _, err := a.db.Exec(deleteUser, username); err != nil {
if _, err := a.db.Exec(deleteUserQuery, username); err != nil {
return err
}
if _, err := a.db.Exec(deleteAllAccess, username); err != nil {
if _, err := a.db.Exec(deleteAllAccessQuery, username); err != nil {
return err
}
return nil
}
func (a *SQLiteAuth) Users() ([]*User, error) {
rows, err := a.db.Query(selectUsernamesQuery)
if err != nil {
return nil, err
}
defer rows.Close()
usernames := make([]string, 0)
for rows.Next() {
var username string
if err := rows.Scan(&username); err != nil {
return nil, err
} else if err := rows.Err(); err != nil {
return nil, err
}
usernames = append(usernames, username)
}
rows.Close()
users := make([]*User, 0)
for _, username := range usernames {
user, err := a.User(username)
if err != nil {
return nil, err
}
users = append(users, user)
}
return users, nil
}
func (a *SQLiteAuth) User(username string) (*User, error) {
urows, err := a.db.Query(selectUserQuery, username)
if err != nil {
return nil, err
}
defer urows.Close()
var hash, role string
if !urows.Next() {
return nil, ErrNotFound
}
if err := urows.Scan(&hash, &role); err != nil {
return nil, err
} else if err := urows.Err(); err != nil {
return nil, err
}
arows, err := a.db.Query(selectUserTopicPermsQuery, username)
if err != nil {
return nil, err
}
defer arows.Close()
grants := make([]Grant, 0)
for arows.Next() {
var topic string
var read, write bool
if err := arows.Scan(&topic, &read, &write); err != nil {
return nil, err
} else if err := arows.Err(); err != nil {
return nil, err
}
grants = append(grants, Grant{
Topic: topic,
Read: read,
Write: write,
})
}
return &User{
Name: username,
Pass: hash,
Role: Role(role),
Grants: grants,
}, nil
}
func (a *SQLiteAuth) ChangePassword(username, password string) error {
hash, err := bcrypt.GenerateFromPassword([]byte(password), bcryptCost)
if err != nil {
return err
}
if _, err := a.db.Exec(updateUserPass, hash, username); err != nil {
if _, err := a.db.Exec(updateUserPassQuery, hash, username); err != nil {
return err
}
return nil
}
func (a *SQLiteAuth) ChangeRole(username string, role Role) error {
if _, err := a.db.Exec(updateUserRole, string(role), username); err != nil {
if _, err := a.db.Exec(updateUserRoleQuery, string(role), username); err != nil {
return err
}
if role == RoleAdmin {
if _, err := a.db.Exec(deleteAllAccessQuery, username); err != nil {
return err
}
}
return nil
}
func (a *SQLiteAuth) AllowAccess(username string, topic string, read bool, write bool) error {
if _, err := a.db.Exec(upsertAccess, username, topic, read, write); err != nil {
if _, err := a.db.Exec(upsertAccessQuery, username, topic, read, write); err != nil {
return err
}
return nil
@ -207,11 +289,11 @@ func (a *SQLiteAuth) AllowAccess(username string, topic string, read bool, write
func (a *SQLiteAuth) ResetAccess(username string, topic string) error {
if topic == "" {
if _, err := a.db.Exec(deleteAllAccess, username); err != nil {
if _, err := a.db.Exec(deleteAllAccessQuery, username); err != nil {
return err
}
} else {
if _, err := a.db.Exec(deleteAccess, username, topic); err != nil {
if _, err := a.db.Exec(deleteAccessQuery, username, topic); err != nil {
return err
}
}

38
cmd/user.go
View file

@ -69,7 +69,7 @@ var cmdUser = &cli.Command{
Name: "list",
Aliases: []string{"chr"},
Usage: "change user role",
Action: execUserChangeRole,
Action: execUserList,
},
},
}
@ -150,6 +150,42 @@ func execUserChangeRole(c *cli.Context) error {
return nil
}
func execUserList(c *cli.Context) error {
manager, err := createAuthManager(c)
if err != nil {
return err
}
users, err := manager.Users()
if err != nil {
return err
}
return showUsers(c, users)
}
func showUsers(c *cli.Context, users []*auth.User) error {
for _, user := range users {
fmt.Fprintf(c.App.Writer, "User %s (%s)\n", user.Name, user.Role)
if user.Role == auth.RoleAdmin {
fmt.Fprintf(c.App.ErrWriter, "- read-write access to all topics (admin role)\n")
} else if len(user.Grants) > 0 {
for _, grant := range user.Grants {
if grant.Read && grant.Write {
fmt.Fprintf(c.App.ErrWriter, "- read-write access to topic %s\n", grant.Topic)
} else if grant.Read {
fmt.Fprintf(c.App.ErrWriter, "- read-only access to topic %s\n", grant.Topic)
} else if grant.Write {
fmt.Fprintf(c.App.ErrWriter, "- write-only access to topic %s\n", grant.Topic)
} else {
fmt.Fprintf(c.App.ErrWriter, "- no access to topic %s\n", grant.Topic)
}
}
} else {
fmt.Fprintf(c.App.ErrWriter, "- no topic-specific permissions\n")
}
}
return nil
}
func createAuthManager(c *cli.Context) (auth.Manager, error) {
authFile := c.String("auth-file")
authDefaultAccess := c.String("auth-default-access")

45
cmd/user_allow.go
View file

@ -8,6 +8,10 @@ import (
"heckel.io/ntfy/util"
)
const (
userEveryone = "everyone"
)
var flagsAllow = append(
userCommandFlags(),
&cli.BoolFlag{Name: "reset", Aliases: []string{"r"}, Usage: "reset access for user (and topic)"},
@ -16,7 +20,7 @@ var flagsAllow = append(
var cmdAllow = &cli.Command{
Name: "allow",
Usage: "Grant a user access to a topic",
UsageText: "ntfy allow USERNAME TOPIC [read-write|read-only|write-only]",
UsageText: "ntfy allow USERNAME TOPIC [read-write|read-only|write-only|none]",
Flags: flagsAllow,
Before: initConfigFileInputSource("config", flagsAllow),
Action: execUserAllow,
@ -32,14 +36,14 @@ func execUserAllow(c *cli.Context) error {
return errors.New("username expected, type 'ntfy allow --help' for help")
} else if !reset && topic == "" {
return errors.New("topic expected, type 'ntfy allow --help' for help")
} else if !util.InStringList([]string{"", "read-write", "read-only", "read", "ro", "write-only", "write", "wo", "none"}, perms) {
} else if !util.InStringList([]string{"", "read-write", "rw", "read-only", "read", "ro", "write-only", "write", "wo", "none"}, perms) {
return errors.New("permission must be one of: read-write, read-only, write-only, or none (or the aliases: read, ro, write, wo)")
}
if username == "everyone" {
if username == userEveryone {
username = ""
}
read := util.InStringList([]string{"", "read-write", "read-only", "read", "ro"}, perms)
write := util.InStringList([]string{"", "read-write", "write-only", "write", "wo"}, perms)
read := util.InStringList([]string{"", "read-write", "rw", "read-only", "read", "ro"}, perms)
write := util.InStringList([]string{"", "read-write", "rw", "write-only", "write", "wo"}, perms)
manager, err := createAuthManager(c)
if err != nil {
return err
@ -56,26 +60,31 @@ func doAccessAllow(c *cli.Context, manager auth.Manager, username string, topic
}
if username == "" {
if read && write {
fmt.Fprintf(c.App.ErrWriter, "Anonymous users granted full access to topic %s\n", topic)
fmt.Fprintf(c.App.Writer, "Anonymous users granted full access to topic %s\n", topic)
} else if read {
fmt.Fprintf(c.App.ErrWriter, "Anonymous users granted read-only access to topic %s\n", topic)
fmt.Fprintf(c.App.Writer, "Anonymous users granted read-only access to topic %s\n", topic)
} else if write {
fmt.Fprintf(c.App.ErrWriter, "Anonymous users granted write-only access to topic %s\n", topic)
fmt.Fprintf(c.App.Writer, "Anonymous users granted write-only access to topic %s\n", topic)
} else {
fmt.Fprintf(c.App.ErrWriter, "Revoked all access to topic %s for all anonymous users\n", topic)
fmt.Fprintf(c.App.Writer, "Revoked all access to topic %s for all anonymous users\n", topic)
}
} else {
if read && write {
fmt.Fprintf(c.App.ErrWriter, "User %s now has read-write access to topic %s\n", username, topic)
fmt.Fprintf(c.App.Writer, "User %s now has read-write access to topic %s\n", username, topic)
} else if read {
fmt.Fprintf(c.App.ErrWriter, "User %s now has read-only access to topic %s\n", username, topic)
fmt.Fprintf(c.App.Writer, "User %s now has read-only access to topic %s\n", username, topic)
} else if write {
fmt.Fprintf(c.App.ErrWriter, "User %s now has write-only access to topic %s\n", username, topic)
fmt.Fprintf(c.App.Writer, "User %s now has write-only access to topic %s\n", username, topic)
} else {
fmt.Fprintf(c.App.ErrWriter, "Revoked all access to topic %s for user %s\n", topic, username)
fmt.Fprintf(c.App.Writer, "Revoked all access to topic %s for user %s\n", topic, username)
}
}
return nil
user, err := manager.User(username)
if err != nil {
return err
}
fmt.Fprintln(c.App.Writer)
return showUsers(c, []*auth.User{user})
}
func doAccessReset(c *cli.Context, manager auth.Manager, username, topic string) error {
@ -84,15 +93,15 @@ func doAccessReset(c *cli.Context, manager auth.Manager, username, topic string)
}
if username == "" {
if topic == "" {
fmt.Fprintln(c.App.ErrWriter, "Reset access for all anonymous users and all topics")
fmt.Fprintln(c.App.Writer, "Reset access for all anonymous users and all topics")
} else {
fmt.Fprintf(c.App.ErrWriter, "Reset access to topic %s for all anonymous users\n", topic)
fmt.Fprintf(c.App.Writer, "Reset access to topic %s for all anonymous users\n", topic)
}
} else {
if topic == "" {
fmt.Fprintf(c.App.ErrWriter, "Reset access for user %s to all topics\n", username)
fmt.Fprintf(c.App.Writer, "Reset access for user %s to all topics\n", username)
} else {
fmt.Fprintf(c.App.ErrWriter, "Reset access for user %s and topic %s\n", username, topic)
fmt.Fprintf(c.App.Writer, "Reset access for user %s and topic %s\n", username, topic)
}
}
return nil

6
cmd/user_deny.go
View file

@ -20,11 +20,11 @@ func execUserDeny(c *cli.Context) error {
username := c.Args().Get(0)
topic := c.Args().Get(1)
if username == "" {
return errors.New("username expected, type 'ntfy allow --help' for help")
return errors.New("username expected, type 'ntfy deny --help' for help")
} else if topic == "" {
return errors.New("topic expected, type 'ntfy allow --help' for help")
return errors.New("topic expected, type 'ntfy deny --help' for help")
}
if username == "everyone" {
if username == userEveryone {
username = ""
}
manager, err := createAuthManager(c)

2
server/server.go
View file

@ -1134,7 +1134,7 @@ func (s *Server) withAuth(next handleFunc, perm auth.Permission) handleFunc {
if err != nil {
return err
}
user := auth.Everyone
var user *auth.User // may stay nil if no auth header!
username, password, ok := r.BasicAuth()
if ok {
if user, err = s.auth.Authenticate(username, password); err != nil {