platypush/README.md
Fabio Manganiello 97b6fab376 Updated README
2017-12-18 01:53:32 +01:00

187 lines
5.8 KiB
Markdown

Platypush
=========
Execute any command or custom complex logic on your devices, wherever they are, using your PushBullet account.
Installation
------------
```shell
pip install platypush
```
### Manual Installation
```shell
git clone https://github.com/BlackLight/platypush
cd platypush
python setup.py install
```
Configuration
-------------
Copy /etc/platypush/config.example.yaml to /etc/platypush/config.yaml (system-wise settings) or ~/.config/platypush/config.yaml (user-wise settings).
Edit the file to include:
### For the PushBullet backend
* Your PushBullet access token (create one [here](https://www.pushbullet.com/#settings/account));
* The name of the (virtual) PushBullet device used to listen for events (create one [here](https://www.pushbullet.com/#devices)).
### For the Apache Kafka backend
* The host and port of the Kafka installation
* The topic that will be used to deliver and process messages
### For the local socket backend
* The name of the local FIFO that will be used to deliver and process messages
### device_id
Each target device is identified by a unique device_id in the messages sent over your account. The device_id is the hostname by default, unless changed in config.yaml.
Shell interface
---------------
`platypush` installs `pusher`, a command-line tool to send PushBullet messages to the connected devices in the format used by platypush.
Some examples:
```shell
pusher --target laptop --action shell.exec --cmd "scp /home/user/photos/*.jpg backup_host:/mnt/hd/photos"
pusher --target raspberrypi --action music.mpd.play
```
The logic to execute is specified by the `--action` option, whose format is `package_name.method_name` (with method_name part of the package main class).
Available plugins
-----------------
* `platypush.plugins.shell`: The simplest and yet most versatile plugin. Executes a remote command on the host identified by the `--target` device_id. Example:
```shell
pusher --target laptop --action shell.exec --cmd "scp /home/user/photos/*.jpg backup_host:/mnt/hd/photos"
```
* `platypush.plugins.music.mpd`: Controls the playback on a mpd/mopidy music server. Requires the package `mpd2` on the target machine. Example:
```shell
pusher --target raspberry --action music.mpd.play
```
Configure the plugin through an entry like this in your `config.yaml`:
```yaml
music.mpd:
host: your_mpd_host
port: 6600
```
* `platypush.plugins.switch.wemo`: Controls a WeMo Switch smart switch device. Requires the package `ouimeaux` on the target machine. Example:
```shell
pusher --target raspberry --action switch.wemo.on
```
* `platypush.plugins.light.hue`: Controls a Philips Hue smart lights system. Requires the package `phue` on the target machine. Example:
```shell
pusher --target raspberry --action light.hue.scene --name "Sunset" --group "Living Room"
```
Writing your plugins
--------------------
Writing your own `platypush` plugin, that would execute your own custom logic whenever a bullet with your plugin name is received, is a very simple task.
1. Create your plugin directory under `platypush/plugins` (e.g. `light/batsignal`).
2. In the case above, `platypush.plugins.light.batsignal` will be your package name.
3. Create an `__init__.py` under `platypush/plugins/light/batsignal`.
4. If your module is `light/batsignal`, then its main class should be named `LightBatsignalPlugin`.
5. The configuration for your module will be read from a section named `light.batsignal` from your `config.yaml`. Its values will passed over the plugin constructor arguments.
The `__init__.py` will look like this:
```python
import batman
from platypush.message.response import Response
from .. import LightPlugin
class LightBatsignalPlugin(LightPlugin):
def __init__(self, intensity=100):
super().__init__()
self.batsignal = batman.Batsignal(intensity)
def on(self, urgent=False):
if urgent:
self.batsignal.notify_robin()
self.batsignal.on()
return Response(output='ok')
def off(self):
self.batsignal.off()
return Response(output='ok')
def toggle(self):
self.batsignal.toggle()
return Response(output='ok')
```
6. Rebuild and reinstall `platypush` if required and relaunch it.
7. Test your new plugin by sending some bullets to it:
```shell
pusher --target your_pc --action light.batsignal.on --urgent 1
```
Writing your backends
---------------------
You can also write your own backends, where a backend is nothing but a thread that listens for messages on a certain channel and pokes the main app whenever it receives one.
1. Create your backend directory under `platypush/backend` (e.g. `voicemail`)
2. In the case above, `platypush.backend.voicemail` will be your package name.
3. Create an `__init__.py` under `platypush/backend/voicemail`.
4. If your module is `voicemail`, then its main class should be named `VoicemailBackend`.
5. The configuration for your module will be read from a section named `backend.voicemail` from your `config.yaml`. Its values will be passed over the backend constructor arguments.
6. Implement the `run` method. Since a backend is a thread that polls for new messages on a channel, this will be the thread main method. `_send_msg` should call `self.on_msg` at the end to post a new message to the application.
7. Implement the `_send_msg` method. This method will be called whenever the application needs to send a new message through `send_request` and `send_response`. You should never call `_send_msg` directly.
The `__init__.py` will look like this:
```python
from .. import Backend
class VoicemailBackend(Backend)
def __init__(self, phone)
super().__init__()
self.phone = phone
self.voicemail = Voicemail(...)
def _send_msg(self, msg):
self.voicemail.save_msg(msg)
def run(self):
while True:
msg = self.voicemail.poll()
self.on_msg(msg)
```