ntfy/cmd/access.go

175 lines
5.8 KiB
Go

package cmd
import (
"errors"
"fmt"
"github.com/urfave/cli/v2"
"heckel.io/ntfy/auth"
"heckel.io/ntfy/util"
)
/*
ntfy access # Shows access control list
ntfy access phil # Shows access for user phil
ntfy access phil mytopic # Shows access for user phil and topic mytopic
ntfy access phil mytopic rw # Allow read-write access to mytopic for user phil
ntfy access everyone mytopic rw # Allow anonymous read-write access to mytopic
ntfy access --reset # Reset entire access control list
ntfy access --reset phil # Reset all access for user phil
ntfy access --reset phil mytopic # Reset access for user phil and topic mytopic
*/
const (
userEveryone = "everyone"
)
var flagsAccess = append(
userCommandFlags(),
&cli.BoolFlag{Name: "reset", Aliases: []string{"r"}, Usage: "reset access for user (and topic)"},
)
var cmdAccess = &cli.Command{
Name: "access",
Usage: "Grant/revoke access to a topic, or show access",
UsageText: "ntfy access [USERNAME [TOPIC [PERMISSION]]]",
Flags: flagsAccess,
Before: initConfigFileInputSource("config", flagsAccess),
Action: execUserAccess,
Category: categoryServer,
}
func execUserAccess(c *cli.Context) error {
manager, err := createAuthManager(c)
if err != nil {
return err
}
username := c.Args().Get(0)
if username == userEveryone {
username = auth.Everyone
}
topic := c.Args().Get(1)
perms := c.Args().Get(2)
reset := c.Bool("reset")
if reset {
return resetAccess(c, manager, username, topic)
} else if perms == "" {
return showAccess(c, manager, username)
}
return changeAccess(c, manager, username, topic, perms)
}
func changeAccess(c *cli.Context, manager auth.Manager, username string, topic string, perms string) error {
if !util.InStringList([]string{"", "read-write", "rw", "read-only", "read", "ro", "write-only", "write", "wo", "none", "deny"}, perms) {
return errors.New("permission must be one of: read-write, read-only, write-only, or deny (or the aliases: read, ro, write, wo, none)")
}
read := util.InStringList([]string{"read-write", "rw", "read-only", "read", "ro"}, perms)
write := util.InStringList([]string{"read-write", "rw", "write-only", "write", "wo"}, perms)
if err := manager.AllowAccess(username, topic, read, write); err != nil {
return err
}
if read && write {
fmt.Fprintf(c.App.Writer, "Granted read-write access to topic %s\n\n", topic)
} else if read {
fmt.Fprintf(c.App.Writer, "Granted read-only access to topic %s\n\n", topic)
} else if write {
fmt.Fprintf(c.App.Writer, "Granted write-only access to topic %s\n\n", topic)
} else {
fmt.Fprintf(c.App.Writer, "Revoked all access to topic %s\n\n", topic)
}
return showUserAccess(c, manager, username)
}
func resetAccess(c *cli.Context, manager auth.Manager, username, topic string) error {
if username == "" {
return resetAllAccess(c, manager)
} else if topic == "" {
return resetUserAccess(c, manager, username)
}
return resetUserTopicAccess(c, manager, username, topic)
}
func resetAllAccess(c *cli.Context, manager auth.Manager) error {
if err := manager.ResetAccess("", ""); err != nil {
return err
}
fmt.Fprintln(c.App.Writer, "Reset access for all users")
return nil
}
func resetUserAccess(c *cli.Context, manager auth.Manager, username string) error {
if err := manager.ResetAccess(username, ""); err != nil {
return err
}
fmt.Fprintf(c.App.Writer, "Reset access for user %s\n\n", username)
return showUserAccess(c, manager, username)
}
func resetUserTopicAccess(c *cli.Context, manager auth.Manager, username string, topic string) error {
if err := manager.ResetAccess(username, topic); err != nil {
return err
}
fmt.Fprintf(c.App.Writer, "Reset access for user %s and topic %s\n\n", username, topic)
return showUserAccess(c, manager, username)
}
func showAccess(c *cli.Context, manager auth.Manager, username string) error {
if username == "" {
return showAllAccess(c, manager)
}
return showUserAccess(c, manager, username)
}
func showAllAccess(c *cli.Context, manager auth.Manager) error {
users, err := manager.Users()
if err != nil {
return err
}
return showUsers(c, manager, users)
}
func showUserAccess(c *cli.Context, manager auth.Manager, username string) error {
users, err := manager.User(username)
if err != nil {
return err
}
return showUsers(c, manager, []*auth.User{users})
}
func showUsers(c *cli.Context, manager auth.Manager, 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.TopicPattern)
} else if grant.Read {
fmt.Fprintf(c.App.ErrWriter, "- read-only access to topic %s\n", grant.TopicPattern)
} else if grant.Write {
fmt.Fprintf(c.App.ErrWriter, "- write-only access to topic %s\n", grant.TopicPattern)
} else {
fmt.Fprintf(c.App.ErrWriter, "- no access to topic %s\n", grant.TopicPattern)
}
}
} else {
fmt.Fprintf(c.App.ErrWriter, "- no topic-specific permissions\n")
}
if user.Name == auth.Everyone {
defaultRead, defaultWrite := manager.DefaultAccess()
if defaultRead && defaultWrite {
fmt.Fprintln(c.App.ErrWriter, "- read-write access to all (other) topics (server config)")
} else if defaultRead {
fmt.Fprintln(c.App.ErrWriter, "- read-only access to all (other) topics (server config)")
} else if defaultWrite {
fmt.Fprintln(c.App.ErrWriter, "- write-only access to all (other) topics (server config)")
} else {
fmt.Fprintln(c.App.ErrWriter, "- no access to any (other) topics (server config)")
}
}
}
return nil
}