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This commit is contained in:
Philipp Heckel 2022-02-01 23:39:57 -05:00
parent c3a2331b59
commit 1552d8103e
7 changed files with 211 additions and 121 deletions
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7
client/client.go
View File

@ -5,6 +5,7 @@ import (
"bufio"
"context"
"encoding/json"
"errors"
"fmt"
"heckel.io/ntfy/util"
"io"
@ -105,13 +106,13 @@ func (c *Client) PublishReader(topic string, body io.Reader, options ...PublishO
return nil, err
}
defer resp.Body.Close()
if resp.StatusCode != http.StatusOK {
return nil, fmt.Errorf("unexpected response %d from server", resp.StatusCode)
}
b, err := io.ReadAll(io.LimitReader(resp.Body, maxResponseBytes))
if err != nil {
return nil, err
}
if resp.StatusCode != http.StatusOK {
return nil, errors.New(strings.TrimSpace(string(b)))
}
m, err := toMessage(string(b), topicURL, "")
if err != nil {
return nil, err

6
client/options.go
View File

@ -2,6 +2,7 @@ package client
import (
"fmt"
"heckel.io/ntfy/util"
"net/http"
"strings"
"time"
@ -70,6 +71,11 @@ func WithEmail(email string) PublishOption {
return WithHeader("X-Email", email)
}
// WithBasicAuth adds the Authorization header for basic auth to the request
func WithBasicAuth(user, pass string) PublishOption {
return WithHeader("Authorization", util.BasicAuth(user, pass))
}
// WithNoCache instructs the server not to cache the message server-side
func WithNoCache() PublishOption {
return WithHeader("X-Cache", "no")

9
cmd/access.go
View File

@ -8,12 +8,6 @@ import (
"heckel.io/ntfy/util"
)
/*
*/
const (
userEveryone = "everyone"
)
@ -46,7 +40,8 @@ Usage:
ntfy access USERNAME TOPIC PERMISSION # Allow/deny access for USERNAME to TOPIC
Arguments:
USERNAME an existing user, as created with 'ntfy user add'
USERNAME an existing user, as created with 'ntfy user add', or "everyone"/"*"
to define access rules for anonymous/unauthenticated clients
TOPIC name of a topic with optional wildcards, e.g. "mytopic*"
PERMISSION one of the following:
- read-write (alias: rw)

70
cmd/publish.go
View File

@ -5,6 +5,7 @@ import (
"fmt"
"github.com/urfave/cli/v2"
"heckel.io/ntfy/client"
"heckel.io/ntfy/util"
"io"
"os"
"path/filepath"
@ -15,23 +16,25 @@ var cmdPublish = &cli.Command{
Name: "publish",
Aliases: []string{"pub", "send", "trigger"},
Usage: "Send message via a ntfy server",
UsageText: "ntfy send [OPTIONS..] TOPIC [MESSAGE]",
UsageText: "ntfy send [OPTIONS..] TOPIC [MESSAGE]\n NTFY_TOPIC=.. ntfy send [OPTIONS..] -P [MESSAGE]",
Action: execPublish,
Category: categoryClient,
Flags: []cli.Flag{
&cli.StringFlag{Name: "config", Aliases: []string{"c"}, Usage: "client config file"},
&cli.StringFlag{Name: "title", Aliases: []string{"t"}, Usage: "message title"},
&cli.StringFlag{Name: "priority", Aliases: []string{"p"}, Usage: "priority of the message (1=min, 2=low, 3=default, 4=high, 5=max)"},
&cli.StringFlag{Name: "tags", Aliases: []string{"tag", "T"}, Usage: "comma separated list of tags and emojis"},
&cli.StringFlag{Name: "delay", Aliases: []string{"at", "in", "D"}, Usage: "delay/schedule message"},
&cli.StringFlag{Name: "click", Aliases: []string{"U"}, Usage: "URL to open when notification is clicked"},
&cli.StringFlag{Name: "attach", Aliases: []string{"a"}, Usage: "URL to send as an external attachment"},
&cli.StringFlag{Name: "filename", Aliases: []string{"name", "n"}, Usage: "Filename for the attachment"},
&cli.StringFlag{Name: "file", Aliases: []string{"f"}, Usage: "File to upload as an attachment"},
&cli.StringFlag{Name: "email", Aliases: []string{"e-mail", "mail", "e"}, Usage: "also send to e-mail address"},
&cli.BoolFlag{Name: "no-cache", Aliases: []string{"C"}, Usage: "do not cache message server-side"},
&cli.BoolFlag{Name: "no-firebase", Aliases: []string{"F"}, Usage: "do not forward message to Firebase"},
&cli.BoolFlag{Name: "quiet", Aliases: []string{"q"}, Usage: "do print message"},
&cli.StringFlag{Name: "config", Aliases: []string{"c"}, EnvVars: []string{"NTFY_CONFIG"}, Usage: "client config file"},
&cli.StringFlag{Name: "title", Aliases: []string{"t"}, EnvVars: []string{"NTFY_TITLE"}, Usage: "message title"},
&cli.StringFlag{Name: "priority", Aliases: []string{"p"}, EnvVars: []string{"NTFY_PRIORITY"}, Usage: "priority of the message (1=min, 2=low, 3=default, 4=high, 5=max)"},
&cli.StringFlag{Name: "tags", Aliases: []string{"tag", "T"}, EnvVars: []string{"NTFY_TAGS"}, Usage: "comma separated list of tags and emojis"},
&cli.StringFlag{Name: "delay", Aliases: []string{"at", "in", "D"}, EnvVars: []string{"NTFY_DELAY"}, Usage: "delay/schedule message"},
&cli.StringFlag{Name: "click", Aliases: []string{"U"}, EnvVars: []string{"NTFY_CLICK"}, Usage: "URL to open when notification is clicked"},
&cli.StringFlag{Name: "attach", Aliases: []string{"a"}, EnvVars: []string{"NTFY_ATTACH"}, Usage: "URL to send as an external attachment"},
&cli.StringFlag{Name: "filename", Aliases: []string{"name", "n"}, EnvVars: []string{"NTFY_FILENAME"}, Usage: "Filename for the attachment"},
&cli.StringFlag{Name: "file", Aliases: []string{"f"}, EnvVars: []string{"NTFY_FILE"}, Usage: "File to upload as an attachment"},
&cli.StringFlag{Name: "email", Aliases: []string{"mail", "e"}, EnvVars: []string{"NTFY_EMAIL"}, Usage: "also send to e-mail address"},
&cli.StringFlag{Name: "user", Aliases: []string{"u"}, EnvVars: []string{"NTFY_USER"}, Usage: "username[:password] used to auth against the server"},
&cli.BoolFlag{Name: "no-cache", Aliases: []string{"C"}, EnvVars: []string{"NTFY_NO_CACHE"}, Usage: "do not cache message server-side"},
&cli.BoolFlag{Name: "no-firebase", Aliases: []string{"F"}, EnvVars: []string{"NTFY_NO_FIREBASE"}, Usage: "do not forward message to Firebase"},
&cli.BoolFlag{Name: "env-topic", Aliases: []string{"P"}, EnvVars: []string{"NTFY_ENV_TOPIC"}, Usage: "use topic from NTFY_TOPIC env variable"},
&cli.BoolFlag{Name: "quiet", Aliases: []string{"q"}, EnvVars: []string{"NTFY_QUIET"}, Usage: "do print message"},
},
Description: `Publish a message to a ntfy server.
@ -46,6 +49,9 @@ Examples:
ntfy pub --click="https://reddit.com" redd 'New msg' # Opens Reddit when notification is clicked
ntfy pub --attach="http://some.tld/file.zip" files # Send ZIP archive from URL as attachment
ntfy pub --file=flower.jpg flowers 'Nice!' # Send image.jpg as attachment
ntfy pub -u phil:mypass secret Psst # Publish with username/password
NTFY_USER=phil:mypass ntfy pub secret Psst # Use env variables to set username/password
NTFY_TOPIC=mytopic ntfy pub -P "some message"" # Use NTFY_TOPIC variable as topic
cat flower.jpg | ntfy pub --file=- flowers 'Nice!' # Same as above, send image.jpg as attachment
ntfy trigger mywebhook # Sending without message, useful for webhooks
@ -57,9 +63,6 @@ or ~/.config/ntfy/client.yml for all other users.`,
}
func execPublish(c *cli.Context) error {
if c.NArg() < 1 {
return errors.New("must specify topic, type 'ntfy publish --help' for help")
}
conf, err := loadConfig(c)
if err != nil {
return err
@ -73,14 +76,26 @@ func execPublish(c *cli.Context) error {
filename := c.String("filename")
file := c.String("file")
email := c.String("email")
user := c.String("user")
noCache := c.Bool("no-cache")
noFirebase := c.Bool("no-firebase")
envTopic := c.Bool("env-topic")
quiet := c.Bool("quiet")
topic := c.Args().Get(0)
message := ""
var topic, message string
if envTopic {
topic = os.Getenv("NTFY_TOPIC")
if c.NArg() > 0 {
message = strings.Join(c.Args().Slice(), " ")
}
} else {
if c.NArg() < 1 {
return errors.New("must specify topic, type 'ntfy publish --help' for help")
}
topic = c.Args().Get(0)
if c.NArg() > 1 {
message = strings.Join(c.Args().Slice()[1:], " ")
}
}
var options []client.PublishOption
if title != "" {
options = append(options, client.WithTitle(title))
@ -112,6 +127,23 @@ func execPublish(c *cli.Context) error {
if noFirebase {
options = append(options, client.WithNoFirebase())
}
if user != "" {
var pass string
parts := strings.SplitN(user, ":", 2)
if len(parts) == 2 {
user = parts[0]
pass = parts[1]
} else {
fmt.Fprint(c.App.ErrWriter, "Enter Password: ")
p, err := util.ReadPassword(c.App.Reader)
if err != nil {
return err
}
pass = string(p)
fmt.Fprintf(c.App.ErrWriter, "\r%s\r", strings.Repeat(" ", 20))
}
options = append(options, client.WithBasicAuth(user, pass))
}
var body io.Reader
if file == "" {
body = strings.NewReader(message)

101
cmd/user.go
View File

@ -11,29 +11,11 @@ import (
"strings"
)
/*
---
dabbling for CLI
ntfy user allow phil mytopic
ntfy user allow phil mytopic --read-only
ntfy user deny phil mytopic
ntfy user list
phil (admin)
- read-write access to everything
ben (user)
- read-write access to a topic alerts
- read access to
everyone (no user)
- read-only access to topic announcements
*/
var flagsUser = userCommandFlags()
var cmdUser = &cli.Command{
Name: "user",
Usage: "Manage users and access to topics",
UsageText: "ntfy user [add|del|...] ...",
Usage: "Manage/show users",
UsageText: "ntfy user [list|add|remove|change-pass|change-role] ...",
Flags: flagsUser,
Before: initConfigFileInputSource("config", flagsUser),
Category: categoryServer,
@ -41,37 +23,96 @@ var cmdUser = &cli.Command{
{
Name: "add",
Aliases: []string{"a"},
Usage: "add user to auth database",
Usage: "add user",
UsageText: "ntfy user add [--role=admin|user] USERNAME",
Action: execUserAdd,
Flags: []cli.Flag{
&cli.StringFlag{Name: "role", Aliases: []string{"r"}, Value: string(auth.RoleUser), Usage: "user role"},
},
Description: `Add a new user to the ntfy user database.
A user can be either a regular user, or an admin. A regular user has no read or write access (unless
granted otherwise by the auth-default-access setting). An admin user has read and write access to all
topics.
Examples:
ntfy user add phil # Add regular user phil
ntfy user add --role=admin phil # Add admin user phil
`,
},
{
Name: "remove",
Aliases: []string{"del", "rm"},
Usage: "remove user from auth database",
Usage: "remove user",
UsageText: "ntfy user remove USERNAME",
Action: execUserDel,
Description: `Remove a user from the ntfy user database.
Example:
ntfy user del phil
`,
},
{
Name: "change-pass",
Aliases: []string{"chp"},
Usage: "change user password",
UsageText: "ntfy user change-pass USERNAME",
Action: execUserChangePass,
Description: `Change the password for the given user.
The new password will be read from STDIN, and it'll be confirmed by typing
it twice.
Example:
ntfy user change-pass phil
`,
},
{
Name: "change-role",
Aliases: []string{"chr"},
Usage: "change user role",
UsageText: "ntfy user change-role USERNAME ROLE",
Action: execUserChangeRole,
Description: `Change the role for the given user to admin or user.
This command can be used to change the role of a user either from a regular user
to an admin user, or the other way around:
- admin: an admin has read/write access to all topics
- user: a regular user only has access to what was explicitly granted via 'ntfy access'
When changing the role of a user to "admin", all access control entries for that
user are removed, since they are no longer necessary.
Example:
ntfy user change-role phil admin # Make user phil an admin
ntfy user change-role phil user # Remove admin role from user phil
`,
},
{
Name: "list",
Aliases: []string{"chr"},
Usage: "change user role",
Aliases: []string{"l"},
Usage: "list users",
Action: execUserList,
},
},
Description: `Manage users of the ntfy server.
This is a server-only command. It directly manages the user.db as defined in the server config
file server.yml. The command only works if 'auth-file' is properly defined. Please also refer
to the related command 'ntfy access'.
The command allows you to add/remove/change users in the ntfy user database, as well as change
passwords or roles.
Examples:
ntfy user list # Shows list of users
ntfy user add phil # Add regular user phil
ntfy user add --role=admin phil # Add admin user phil
ntfy user del phil # Delete user phil
ntfy user change-pass phil # Change password for user phil
ntfy user change-role phil admin # Make user phil an admin
`,
}
func execUserAdd(c *cli.Context) error {
@ -79,6 +120,8 @@ func execUserAdd(c *cli.Context) error {
role := auth.Role(c.String("role"))
if username == "" {
return errors.New("username expected, type 'ntfy user add --help' for help")
} else if username == userEveryone {
return errors.New("username not allowed")
} else if !auth.AllowedRole(role) {
return errors.New("role must be either 'user' or 'admin'")
}
@ -101,6 +144,8 @@ func execUserDel(c *cli.Context) error {
username := c.Args().Get(0)
if username == "" {
return errors.New("username expected, type 'ntfy user del --help' for help")
} else if username == userEveryone {
return errors.New("username not allowed")
}
manager, err := createAuthManager(c)
if err != nil {
@ -117,6 +162,8 @@ func execUserChangePass(c *cli.Context) error {
username := c.Args().Get(0)
if username == "" {
return errors.New("username expected, type 'ntfy user change-pass --help' for help")
} else if username == userEveryone {
return errors.New("username not allowed")
}
password, err := readPassword(c)
if err != nil {
@ -138,6 +185,8 @@ func execUserChangeRole(c *cli.Context) error {
role := auth.Role(c.Args().Get(1))
if username == "" || !auth.AllowedRole(role) {
return errors.New("username and new role expected, type 'ntfy user change-role --help' for help")
} else if username == userEveryone {
return errors.New("username not allowed")
}
manager, err := createAuthManager(c)
if err != nil {
@ -169,11 +218,11 @@ func createAuthManager(c *cli.Context) (auth.Manager, error) {
return nil, errors.New("option auth-file not set; auth is unconfigured for this server")
} else if !util.FileExists(authFile) {
return nil, errors.New("auth-file does not exist; please start the server at least once to create it")
} else if !util.InStringList([]string{"read-write", "read-only", "deny-all"}, authDefaultAccess) {
} else if !util.InStringList([]string{"read-write", "read-only", "write-only", "deny-all"}, authDefaultAccess) {
return nil, errors.New("if set, auth-default-access must start set to 'read-write', 'read-only' or 'deny-all'")
}
authDefaultRead := authDefaultAccess == "read-write" || authDefaultAccess == "read-only"
authDefaultWrite := authDefaultAccess == "read-write"
authDefaultWrite := authDefaultAccess == "read-write" || authDefaultAccess == "write-only"
return auth.NewSQLiteAuth(authFile, authDefaultRead, authDefaultWrite)
}

99
docs/config.md
View File

@ -122,7 +122,7 @@ Please also refer to the [rate limiting](#rate-limiting) settings below, specifi
and `visitor-attachment-daily-bandwidth-limit`. Setting these conservatively is necessary to avoid abuse.
## Access control
By default, the ntfy server is open for everyone, meaning everyone can read and write to any topic. To restrict access
By default, the ntfy server is open for everyone, meaning **everyone can read and write to any topic**. To restrict access
to your own server, you can optionally configure authentication and authorization.
ntfy's auth is implemented with a simple SQLite-based backend. It implements two roles (`user` and `admin`) and per-topic
@ -135,10 +135,13 @@ To set up auth, simply configure the following two options:
* `auth-default-access` defines the default/fallback access if no access control entry is found; it can be
set to `read-write` (default), `read-only`, `write-only` or `deny-all`.
Once configured, you can use the `ntfy user` command to add/modify/delete users (with either a `user` or an `admin` role).
To control granular access to specific topics, you can use the `ntfy access` command to modify the access control list.
### Managing users + access
Once configured, you can use the `ntfy user` command to add/modify/delete users, and the `ntfy access` command
to modify the access control list to allow/deny access to specific topic or topic patterns.
### Example: private instance
XXXXXXXXXXXXXXXXXXXx
### Example: Private instance
The easiest way to configure a private instance is to set `auth-default-access` to `deny-all` in the `server.yml`:
``` yaml
@ -156,75 +159,73 @@ User phil added with role admin
```
Once you've done that, you can publish and subscribe using [Basic Auth](https://en.wikipedia.org/wiki/Basic_access_authentication)
with the given username/password. Here's a simple example:
with the given username/password. Be sure to use HTTPS to avoid eavesdropping and exposing your password. Here's a simple example:
=== "Command line (curl)"
```
curl \
-u phil:mypass \
-d "Look ma, with auth" \
ntfy.example.com/secrets
https://ntfy.example.com/mysecrets
```
=== "ntfy CLI"
```
ntfy publish ntfy.example.com/mytopic "Look ma, with auth"
XXXXXXXXXXX
XXXXXXXXXXX
XXXXXXXXXXX
XXXXXXXXXXX
XXXXXXXXXXX
XXXXXXXXXXX
XXXXXXXXXXX
XXXXXXXXXXX
XXXXXXXXXXX
XXXXXXXXXXX
XXXXXXXXXXX
XXXXXXXXXXX
XXXXXXXXXXX
XXXXXXXXXXX
XXXXXXXXXXX
ntfy publish \
-u phil:mypass \
ntfy.example.com/mysecrets \
"Look ma, with auth"
```
=== "HTTP"
``` http
POST /mytopic HTTP/1.1
Host: ntfy.sh
POST /mysecrets HTTP/1.1
Host: ntfy.example.com
Authorization: Basic cGhpbDpteXBhc3M=
Backup successful 😀
Look ma, with auth
```
=== "JavaScript"
``` javascript
fetch('https://ntfy.sh/mytopic', {
method: 'POST', // PUT works too
body: 'Backup successful 😀'
})
```
``` javascript
fetch('https://ntfy.example.com/mysecrets', {
method: 'POST', // PUT works too
body: 'Look ma, with auth',
headers: {
'Authorization': 'Basic cGhpbDpteXBhc3M='
}
})
```
=== "Go"
``` go
http.Post("https://ntfy.sh/mytopic", "text/plain",
strings.NewReader("Backup successful 😀"))
```
``` go
req, _ := http.NewRequest("POST", "https://ntfy.example.com/mysecrets",
strings.NewReader("Look ma, with auth"))
req.Header.Set("Authorization", "Basic cGhpbDpteXBhc3M=")
http.DefaultClient.Do(req)
```
=== "Python"
``` python
requests.post("https://ntfy.sh/mytopic",
data="Backup successful 😀".encode(encoding='utf-8'))
```
``` python
requests.post("https://ntfy.example.com/mysecrets",
data="Look ma, with auth",
headers={
"Authorization": "Basic cGhpbDpteXBhc3M="
})
```
=== "PHP"
``` php-inline
file_get_contents('https://ntfy.sh/mytopic', false, stream_context_create([
'http' => [
'method' => 'POST', // PUT also works
'header' => 'Content-Type: text/plain',
'content' => 'Backup successful 😀'
]
]));
```
``` php-inline
file_get_contents('https://ntfy.example.com/mysecrets', false, stream_context_create([
'http' => [
'method' => 'POST', // PUT also works
'header' =>
'Content-Type: text/plain\r\n' .
'Authorization: Basic cGhpbDpteXBhc3M=',
'content' => 'Look ma, with auth'
]
]));
```
## E-mail notifications
To allow forwarding messages via e-mail, you can configure an **SMTP server for outgoing messages**. Once configured,

6
util/util.go
View File

@ -1,6 +1,7 @@
package util
import (
"encoding/base64"
"errors"
"fmt"
"github.com/gabriel-vasile/mimetype"
@ -240,3 +241,8 @@ func ReadPassword(in io.Reader) ([]byte, error) {
return password, nil
}
// BasicAuth encodes the Authorization header value for basic auth
func BasicAuth(user, pass string) string {
return fmt.Sprintf("Basic %s", base64.StdEncoding.EncodeToString([]byte(fmt.Sprintf("%s:%s", user, pass))))
}