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Made the README shorter after moving the most detailed parts to the Wiki as of #39

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Fabio Manganiello 2018-01-03 15:20:54 +01:00
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@ -48,373 +48,5 @@ Check `all_requirements.txt` for any extra dependencies you may want to install
After configuring the server, start it by simply running `platypush`.
Configuration
-------------
Copy `/etc/platypush/config.example.yaml` to `/etc/platypush/config.yaml` (system-wise settings) or `~/.config/platypush/config.yaml` (user-wise settings).
Some configuration snippets:
### 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 a different value is set in config.yaml at the root level.
### Backends
Platypush comes by default with a [PushBullet](https://www.pushbullet.com/) backend, an [Apache Kafka](https://kafka.apache.org/) backend, and a (quite unstable) local backend based on fifos. Backend configurations start with `backend.` in the `config.yaml`.
#### PushBullet configuration
You will need:
* 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)).
```yaml
backend.pushbullet:
token: PUSHBULLET_TOKEN
device: platypush
```
#### Apache Kafka configuration
This would be a sample snippet for an Apache Kafka configuration:
```yaml
backend.kafka:
pusher: True # Default pusher backend
server: server:9092 # Kafka server and port
topic: platypush # Topic prefix. Note: platypush will create a topic for each device named <topic>.<device_id>
```
Note: specifying `pusher: True` on a backend configuration means that that backend will be the default one used to deliver requests or events to other nodes through the `pusher` script, if no `--backend` option is passed.
#### Local backend configuration
```yaml
backend.local:
request_fifo: /tmp/platypush-requests.fifo
response_fifo: /tmp/platypush-responses.fifo
```
#### Google Assistant configuration
Follow the steps on the [Google Assistant SDK](https://github.com/googlesamples/assistant-sdk-python/tree/master/google-assistant-sdk) page and get the assistant sample running on your machine.
Afterwards, you can enable custom speech-triggered actions on Platypush by just enabling the assistant backend:
```yaml
backend.assistant.google:
disabled: False
```
#### Flic buttons configuration
[Flic buttons](https://flic.io/) are a quite cool and useful accessory. You can pair them with your phone over Bluetooth and they can trigger anything on your device - play music on Spotify, start a timer, trigger a Tasker task, snooze alarms, trigger fake phone calls...
A [beta SDK](https://github.com/50ButtonsEach/fliclib-linux-hci) is available as well that allows you to pair the buttons to any bluetooth device, not necessarily running the Flic app.
Install the SDK and run the `flicd` server on your machine. You can then enable the Flic plugin:
```yaml
backend.button.flic:
server: localhost
```
By the way, the Flic app only supports a maximum of three events per button - short press, long press and double press. With the Platypush plugin you can trigger countless actions by configuring multiple combinations of short and long presses - provided that you can remember them.
### Plugins
A couple of plugins are available out of the box with platypush under `plugins/`. Some of them may require extras Python or system dependencies. Some of the available plugins include:
#### MPD/Mopidy support
[MPD](https://musicpd.org/) is an application that allows to manage and play your music collection through a scalable client/server model. You can have your server running on a machine with a hard drive stuffed with mp3s, and access your collection from anywhere using a big family of compatible command line, graphical, web or mobile clients. [Mopidy](https://www.mopidy.com/) is an evolution of MPD that allows you to access music content from multiple sources through a wide set of plugins - e.g. Spotify, SoundCloud, Deezer, Pandora, TuneIn, Google Music.
Platypush can be a client for your MPD/Mopidy music server, allowing you to search for music, control your queue and the playback upon requests or events.
Configuration:
```yaml
music.mpd:
host: localhost
port: 6600
```
#### Video and media support
Platypush comes with support for video media, including YouTube, local media and torrents (requires [torrentcast](https://www.npmjs.com/package/torrentcast)). It's quite handy to turn a RaspberryPi into a full-blown media server or a Chromecast on steroids, voice controls included.
```yaml
video.omxplayer:
args:
- -o
- alsa # or hdmi
# ... any other default options for OMXPlayer
video.torrentcast:
server: localhost
port: 9090
```
#### Philips Hue lights support
Control your [Philips Hue](https://www2.meethue.com/en-us) lights with custom requests and events triggered by your devices.
```yaml
light.hue:
bridge: bridge_name_or_ip
# If no lights or groups to actions are specified in
# the action or in the default configuration, all the
# lights will be targeted.
lights:
- Hall
- Living Room Left
- Living Room Right
- Garage
groups:
- Bedroom
- Kitchen
```
#### Belkin WeMo Switch
The [WeMo Switch](http://www.belkin.com/us/p/P-F7C027/) is smart Wi-Fi controlled switch that can automate the control of any electric appliance - fridges, lights, coffee machines...
The Platypush plugin requires `ouimeaux` and will work with no configuration needed.
#### Text-to-Speech support
If `mplayer` is installed, you can trigger a machine to say custom phrases in any language through the `tts` plugin. Quite cool if you want to let your RaspberryPi to automatically read you out loud the news or when you get a notification on your phone.
```yaml
tts:
lang: en-gb # Default language
```
#### Shell plugin
You can also run custom shell commands on the target machine through the `shell` plugin, that requires (for now) no configuration.
### Procedures
Procedures are sequences of actions that will be executed in parallel or in series (*TODO*) by Platypush. Useful to refactor sequences of repeated actions in your requests or event hooks. Their configuration names start with `procedure.`.
```yaml
procedure.at_home:
-
action: tts.say
args:
phrase: Welcome home, YOUR_NAME
-
action: light.hue.on
-
action: switch.wemo.on
args:
device: Heater
-
action: music.mpd.play
args:
resource: spotify:user:you:playlist:your_favourite_playlist
-
action: shell.exec
args:
cmd: './bin/sensors_report.sh'
```
### Event Hooks
Event hooks are one of the most powerful features of Platypush. They are the equivalent of a profile in Tasker, or a recipe in IFTTT. They link events received on the main bus to actions that can be triggered on the local or on a remote node. Events will usually be ignored unless you configured a hook for handling them. Their configuration names start with `event.hook.`.
Some examples:
```yaml
event.hook.AssistantConversationStarted:
if:
type: platypush.message.event.assistant.ConversationStartEvent
then:
-
action: shell.exec
args:
cmd: 'aplay /usr/share/sounds/start.wav'
event.hook.LightsSceneAssistantCommand:
if:
type: platypush.message.event.assistant.SpeechRecognizedEvent
# Note: regex support (still quite experimental though) and support for
# parsing context variables out of the trigger event, that can be used
# in the executed actions. Context variables names start with $
# (escape it with \ if you want to use the literal symbol instead).
# The context variables already include the variables of the source event,
# meaning that you can use $phrase as well in your action for this example.
phrase: "set (the)? scene on $name"
then:
-
action: light.hue.scene
args:
# If you said "set the scene on sunset", $name=sunset
name: $name
event.hook.NextSongFlicButton:
if:
type: platypush.message.event.button.flic.FlicButtonEvent
btn_addr: 00:11:22:33:44:55
sequence:
# Lists are supported too
- ShortPressEvent
- LongPressEvent
then:
-
action: music.mpd.next
# You can also specify multiple actions
-
action: media.ctrl.forward
# Or procedures
-
action: procedure.your_proc
```
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).
Sample requests through Pusher
------------------------------
* `platypush.plugins.shell`:
```shell
pusher --target laptop --action shell.exec --cmd "scp /home/user/photos/*.jpg backup_host:/mnt/hd/photos"
```
* `platypush.plugins.music.mpd`:
```shell
pusher --target raspberry --action music.mpd.play
```
* `platypush.plugins.switch.wemo`:
```shell
pusher --target raspberry --action switch.wemo.on
```
* `platypush.plugins.light.hue`:
```shell
pusher --target raspberry --action light.hue.scene --name "Sunset" --group "Living Room"
```
* `procedure`:
```shell
pusher --target raspberry --action procedure.at_home
```
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_message` should call `self.on_message` at the end to post a new message to the application.
7. Implement the `send_message` 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_message` 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_message(self, msg):
self.voicemail.save_msg(msg)
def run(self):
while True:
msg = self.voicemail.poll()
self.on_message(msg)
```
Check [our wiki](https://github.com/BlackLight/platypush/wiki) for any additional info about [configuration](https://github.com/BlackLight/platypush/wiki/Configuration) together with examples, use the shell interface, or write your own plugins and backend.