Add MQTT support.
This commit is contained in:
parent
24f09575ac
commit
8fe0a0fb2f
@ -1,6 +1,6 @@
|
||||
# midi-request-trigger
|
||||
|
||||
A service that triggers HTTP requests when MIDI messages are recieved and triggers MIDI messages when HTTP requests are received.
|
||||
A service that triggers HTTP requests and/or MQTT messages when MIDI messages are recieved and triggers MIDI messages when HTTP requests and/or MQTT messages are received.
|
||||
|
||||
## Install
|
||||
|
||||
@ -175,4 +175,4 @@ midi_routers:
|
||||
Content-Type:
|
||||
- multipart/form-data; boundary=---------------------------888832887744
|
||||
debug_request: true
|
||||
```
|
||||
```
|
||||
|
||||
4
go.mod
4
go.mod
@ -3,6 +3,7 @@ module github.com/GRMrGecko/midi-request-trigger
|
||||
go 1.20
|
||||
|
||||
require (
|
||||
github.com/eclipse/paho.mqtt.golang v1.5.0
|
||||
github.com/gorilla/handlers v1.5.1
|
||||
github.com/gorilla/mux v1.8.0
|
||||
github.com/kkyr/fig v0.3.2
|
||||
@ -11,7 +12,10 @@ require (
|
||||
|
||||
require (
|
||||
github.com/felixge/httpsnoop v1.0.1 // indirect
|
||||
github.com/gorilla/websocket v1.5.3 // indirect
|
||||
github.com/mitchellh/mapstructure v1.4.1 // indirect
|
||||
github.com/pelletier/go-toml v1.9.3 // indirect
|
||||
golang.org/x/net v0.27.0 // indirect
|
||||
golang.org/x/sync v0.7.0 // indirect
|
||||
gopkg.in/yaml.v3 v3.0.1 // indirect
|
||||
)
|
||||
|
||||
8
go.sum
8
go.sum
@ -1,9 +1,13 @@
|
||||
github.com/eclipse/paho.mqtt.golang v1.5.0 h1:EH+bUVJNgttidWFkLLVKaQPGmkTUfQQqjOsyvMGvD6o=
|
||||
github.com/eclipse/paho.mqtt.golang v1.5.0/go.mod h1:du/2qNQVqJf/Sqs4MEL77kR8QTqANF7XU7Fk0aOTAgk=
|
||||
github.com/felixge/httpsnoop v1.0.1 h1:lvB5Jl89CsZtGIWuTcDM1E/vkVs49/Ml7JJe07l8SPQ=
|
||||
github.com/felixge/httpsnoop v1.0.1/go.mod h1:m8KPJKqk1gH5J9DgRY2ASl2lWCfGKXixSwevea8zH2U=
|
||||
github.com/gorilla/handlers v1.5.1 h1:9lRY6j8DEeeBT10CvO9hGW0gmky0BprnvDI5vfhUHH4=
|
||||
github.com/gorilla/handlers v1.5.1/go.mod h1:t8XrUpc4KVXb7HGyJ4/cEnwQiaxrX/hz1Zv/4g96P1Q=
|
||||
github.com/gorilla/mux v1.8.0 h1:i40aqfkR1h2SlN9hojwV5ZA91wcXFOvkdNIeFDP5koI=
|
||||
github.com/gorilla/mux v1.8.0/go.mod h1:DVbg23sWSpFRCP0SfiEN6jmj59UnW/n46BH5rLB71So=
|
||||
github.com/gorilla/websocket v1.5.3 h1:saDtZ6Pbx/0u+bgYQ3q96pZgCzfhKXGPqt7kZ72aNNg=
|
||||
github.com/gorilla/websocket v1.5.3/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
|
||||
github.com/kkyr/fig v0.3.2 h1:+vMj52FL6RJUxeKOBB6JXIMyyi1/2j1ERDrZXjoBjzM=
|
||||
github.com/kkyr/fig v0.3.2/go.mod h1:ItUILF8IIzgZOMhx5xpJ1W/bviQsWRKOwKXfE/tqUoA=
|
||||
github.com/mitchellh/mapstructure v1.4.1 h1:CpVNEelQCZBooIPDn+AR3NpivK/TIKU8bDxdASFVQag=
|
||||
@ -12,6 +16,10 @@ github.com/pelletier/go-toml v1.9.3 h1:zeC5b1GviRUyKYd6OJPvBU/mcVDVoL1OhT17FCt5d
|
||||
github.com/pelletier/go-toml v1.9.3/go.mod h1:u1nR/EPcESfeI/szUZKdtJ0xRNbUoANCkoOuaOx1Y+c=
|
||||
gitlab.com/gomidi/midi/v2 v2.0.30 h1:RgRYbQeQSab5ZaP1lqRcCTnTSBQroE3CE6V9HgMmOAc=
|
||||
gitlab.com/gomidi/midi/v2 v2.0.30/go.mod h1:Y6IFFyABN415AYsFMPJb0/43TRIuVYDpGKp2gDYLTLI=
|
||||
golang.org/x/net v0.27.0 h1:5K3Njcw06/l2y9vpGCSdcxWOYHOUk3dVNGDXN+FvAys=
|
||||
golang.org/x/net v0.27.0/go.mod h1:dDi0PyhWNoiUOrAS8uXv/vnScO4wnHQO4mj9fn/RytE=
|
||||
golang.org/x/sync v0.7.0 h1:YsImfSBoP9QPYL0xyKJPq0gcaJdG3rInoqxTWbfQu9M=
|
||||
golang.org/x/sync v0.7.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
|
||||
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
|
||||
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
|
||||
gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
|
||||
|
||||
4
main.go
4
main.go
@ -14,8 +14,8 @@ import (
|
||||
|
||||
const (
|
||||
serviceName = "midi-request-trigger"
|
||||
serviceDescription = "Takes trigger MIDI messages by HTTP requests and trigger HTTP requests by MIDI messages"
|
||||
serviceVersion = "0.1"
|
||||
serviceDescription = "Takes trigger MIDI messages by HTTP or MQTT requests and trigger HTTP or MQTT requests by MIDI messages"
|
||||
serviceVersion = "0.2"
|
||||
)
|
||||
|
||||
// App is the global application structure for communicating between servers and storing information.
|
||||
|
||||
471
midiRouter.go
471
midiRouter.go
@ -2,6 +2,7 @@ package main
|
||||
|
||||
import (
|
||||
"crypto/tls"
|
||||
"encoding/json"
|
||||
"fmt"
|
||||
"io"
|
||||
"log"
|
||||
@ -11,50 +12,166 @@ import (
|
||||
"strconv"
|
||||
"strings"
|
||||
|
||||
mqtt "github.com/eclipse/paho.mqtt.golang"
|
||||
"gitlab.com/gomidi/midi/v2"
|
||||
"gitlab.com/gomidi/midi/v2/drivers"
|
||||
)
|
||||
|
||||
// Triggers that occur from MIDI messages received.
|
||||
type NoteTrigger struct {
|
||||
MatchAllNotes bool `fig:"match_all_notes"`
|
||||
Channel uint8 `fig:"channel"`
|
||||
Note uint8 `fig:"note"`
|
||||
Velocity uint8 `fig:"velocity"`
|
||||
MatchAllVelocities bool `fig:"match_all_velocities"`
|
||||
MidiInfoInRequest bool `fig:"midi_info_in_request"`
|
||||
InsecureSkipVerify bool `fig:"insecure_skip_verify"`
|
||||
URL string `fig:"url"`
|
||||
Method string `fig:"method"`
|
||||
Body string `fig:"body"`
|
||||
Headers http.Header `fig:"headers"`
|
||||
DebugRequest bool `fig:"debug_request"`
|
||||
// LogLevel Definition
|
||||
type LogLevel int
|
||||
|
||||
const (
|
||||
// Logs only errors.
|
||||
ErrorLog LogLevel = iota
|
||||
// MQTT, HTTP, and MIDI receive logging.
|
||||
ReceiveLog
|
||||
// MQTT, HTTP, and MIDI send logging.
|
||||
SendLog
|
||||
// Debug messages.
|
||||
DebugLog
|
||||
)
|
||||
|
||||
// Provides a string value for a log level.
|
||||
func (l LogLevel) String() string {
|
||||
return [...]string{"Error", "Receive", "Send", "Debug"}[l]
|
||||
}
|
||||
|
||||
// Triggers that occur from HTTP messsages received.
|
||||
// Configurations relating to MQTT connection.
|
||||
type MQTTConfig struct {
|
||||
// Hostname of the MQTT broker.
|
||||
Host string `fig:"host"`
|
||||
// Port of the MQTT broker.
|
||||
Port int `fig:"port"`
|
||||
// MQTT client ID of this relay.
|
||||
ClientId string `fig:"client_id"`
|
||||
// User name used for MQTT authentication.
|
||||
User string `fig:"user"`
|
||||
// Password used for MQTT authentication.
|
||||
Password string `fig:"password"`
|
||||
// Topic where MQTT messages are pushed and received.
|
||||
// Set topic to `midi/example` and the following topics will be setup.
|
||||
// midi/example/cmd - Any commands received on MIDI will publish here.
|
||||
// midi/example/send - Any commands pushed via MQTT will be forwarded to MIDI.
|
||||
// midi/example/status - Configuration is published on startup.
|
||||
// midi/example/status/check - Request status.
|
||||
Topic string `fig:"topic"`
|
||||
// Disable sending all midi notes.
|
||||
DisableMidiFirehose bool `fig:"disable_midi_firehose"`
|
||||
// Disables the config send.
|
||||
DisableConfigSend bool `fig:"disable_config_send"`
|
||||
}
|
||||
|
||||
// Payload to decode/encode JSON message.
|
||||
type MQTTPayload struct {
|
||||
Channel uint8 `json:"channel"`
|
||||
Note uint8 `json:"note"`
|
||||
Velocity uint8 `json:"velocity"`
|
||||
}
|
||||
|
||||
// Triggers that occur from MIDI messages received.
|
||||
type NoteTrigger struct {
|
||||
// If set, every note played will be matched.
|
||||
MatchAllNotes bool `fig:"match_all_notes"`
|
||||
// Channel to match.
|
||||
Channel uint8 `fig:"channel"`
|
||||
// Note to match.
|
||||
Note uint8 `fig:"note"`
|
||||
// Velocity to match.
|
||||
Velocity uint8 `fig:"velocity"`
|
||||
// If we should match all velocity values.
|
||||
MatchAllVelocities bool `fig:"match_all_velocities"`
|
||||
// Custom MQTT message. Do not set to ignore MQTT.
|
||||
MqttTopic string `fig:"mqtt_topic"`
|
||||
// Nil payload will generate a payload with midi info.
|
||||
MqttPayload []interface{} `fig:"mqtt_payload"`
|
||||
// If the HTTP request should includ midi info.
|
||||
MidiInfoInRequest bool `fig:"midi_info_in_request"`
|
||||
// Should SSL requests require a valid certificate.
|
||||
InsecureSkipVerify bool `fig:"insecure_skip_verify"`
|
||||
// The URL to call with the HTTP request. Do not set if you wish to not send HTTP request.
|
||||
URL string `fig:"url"`
|
||||
// HTTP method, defaults to GET.
|
||||
Method string `fig:"method"`
|
||||
// HTTP body.
|
||||
Body string `fig:"body"`
|
||||
// HTTP headers.
|
||||
Headers http.Header `fig:"headers"`
|
||||
}
|
||||
|
||||
// Triggers that occur from HTTP or MQTT messsages received.
|
||||
type RequestTrigger struct {
|
||||
Channel uint8 `fig:"channel"`
|
||||
Note uint8 `fig:"note"`
|
||||
Velocity uint8 `fig:"velocity"`
|
||||
MidiInfoInRequest bool `fig:"midi_info_in_request"`
|
||||
URI string `fig:"uri"`
|
||||
Channel uint8 `fig:"channel"`
|
||||
Note uint8 `fig:"note"`
|
||||
Velocity uint8 `fig:"velocity"`
|
||||
// Parse midi notes from HTTP request.
|
||||
MidiInfoInRequest bool `fig:"midi_info_in_request"`
|
||||
// Absolute MQTT topic to subscribe.
|
||||
MqttTopic string `fig:"mqtt_topic"`
|
||||
// Sub topic off relay MQTT topic to subscribe.
|
||||
// midi/example/$SUB_TOPIC
|
||||
MqttSubTopic string `fig:"mqtt_sub_topic"`
|
||||
// Rather or not to disallow payload to be relayed.
|
||||
DisallowPayload bool `fig:"disallow_payload"`
|
||||
// Request URL path to trigger with.
|
||||
URI string `fig:"uri"`
|
||||
}
|
||||
|
||||
// A common router for both receiving and sending MIDI messages.
|
||||
type MidiRouter struct {
|
||||
Name string `fig:"name"`
|
||||
Device string `fig:"device"`
|
||||
DebugListener bool `fig:"debug_listener"`
|
||||
DisableListener bool `fig:"disable_listener"`
|
||||
NoteTriggers []NoteTrigger `fig:"note_triggers"`
|
||||
// Used for human readable config.
|
||||
Name string `fig:"name"`
|
||||
// Midi device to connect.
|
||||
Device string `fig:"device"`
|
||||
// MQTT Connection if you are to integrate with MQTT.
|
||||
MQTT MQTTConfig `fig:"mqtt"`
|
||||
// Only connect for sending notes, not receiving.
|
||||
DisableListener bool `fig:"disable_listener"`
|
||||
// Listener triggers for notes to send HTTP and or MQTT messages.
|
||||
NoteTriggers []NoteTrigger `fig:"note_triggers"`
|
||||
// HTTP and or MQTT triggers to send MIDI notes.
|
||||
RequestTriggers []RequestTrigger `fig:"request_triggers"`
|
||||
|
||||
MidiOut drivers.Out `fig:"-"`
|
||||
ListenerStop func() `fig:"-"`
|
||||
// How much logging.
|
||||
// 0 - Errors
|
||||
// 1 - MQTT and OSC receive logging.
|
||||
// 2 - MQTT and OSC send logging.
|
||||
// 3 - Debug
|
||||
LogLevel LogLevel `yaml:"log_level" json:"log_level"`
|
||||
|
||||
// Connection to MIDI device.
|
||||
MidiOut drivers.Out `fig:"-"`
|
||||
// Function to stop listening to MIDI device.
|
||||
ListenerStop func() `fig:"-"`
|
||||
// The client connection to MQTT.
|
||||
MqttClient mqtt.Client `yaml:"-" json:"-"`
|
||||
}
|
||||
|
||||
// Logging function to allow log levels.
|
||||
func (r *MidiRouter) Log(level LogLevel, format string, args ...interface{}) {
|
||||
if level <= r.LogLevel {
|
||||
log.Println(fmt.Sprintf(format, args...))
|
||||
}
|
||||
}
|
||||
|
||||
// When a MIDI message occurs, send the HTTP request.
|
||||
func (r *MidiRouter) sendRequest(channel, note, velocity uint8) {
|
||||
// If MQTT firehose not disabled, send to general cmd topic.
|
||||
if r.MQTT.Host != "" && r.MQTT.Port != 0 && !r.MQTT.DisableMidiFirehose {
|
||||
payload := MQTTPayload{
|
||||
Channel: channel,
|
||||
Note: note,
|
||||
Velocity: velocity,
|
||||
}
|
||||
data, err := json.Marshal(payload)
|
||||
if err != nil {
|
||||
r.Log(ErrorLog, "Json Encode: %s", err)
|
||||
} else {
|
||||
topic := r.MQTT.Topic + "/cmd"
|
||||
r.MqttClient.Publish(topic, 0, true, data)
|
||||
r.Log(SendLog, "-> [MQTT] %s", topic)
|
||||
}
|
||||
}
|
||||
|
||||
// Check each trigger to find requests that match this message.
|
||||
for _, trig := range r.NoteTriggers {
|
||||
// If match all notes, process this request.
|
||||
@ -64,73 +181,93 @@ func (r *MidiRouter) sendRequest(channel, note, velocity uint8) {
|
||||
// For all logging, we want to print the message so setup a common string to print.
|
||||
logInfo := fmt.Sprintf("note %s(%d) on channel %v with velocity %v", midi.Note(note), note, channel, velocity)
|
||||
|
||||
// Default method to GET if nothing is defined.
|
||||
if trig.Method == "" {
|
||||
trig.Method = "GET"
|
||||
if trig.MqttTopic != "" {
|
||||
if trig.MqttPayload != nil {
|
||||
r.MqttClient.Publish(trig.MqttTopic, 0, true, trig.MqttPayload)
|
||||
r.Log(SendLog, "-> [MQTT] %s", trig.MqttTopic)
|
||||
} else {
|
||||
payload := MQTTPayload{
|
||||
Channel: channel,
|
||||
Note: note,
|
||||
Velocity: velocity,
|
||||
}
|
||||
data, err := json.Marshal(payload)
|
||||
if err != nil {
|
||||
r.Log(ErrorLog, "Json Encode: %s", err)
|
||||
} else {
|
||||
r.MqttClient.Publish(trig.MqttTopic, 0, true, data)
|
||||
r.Log(SendLog, "-> [MQTT] %s", trig.MqttTopic)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Parse the URL to make sure its valid.
|
||||
url, err := url.Parse(trig.URL)
|
||||
// If not valid, we need to stop processing this request.
|
||||
if err != nil {
|
||||
log.Printf("Trigger failed to parse url: %s\n %s\n", err, logInfo)
|
||||
continue
|
||||
}
|
||||
if trig.URL != "" {
|
||||
// Default method to GET if nothing is defined.
|
||||
if trig.Method == "" {
|
||||
trig.Method = "GET"
|
||||
}
|
||||
|
||||
// If MIDI info needs to be added to the request, add it.
|
||||
if trig.MidiInfoInRequest {
|
||||
query := url.Query()
|
||||
query.Add("channel", strconv.Itoa(int(channel)))
|
||||
query.Add("note", strconv.Itoa(int(note)))
|
||||
query.Add("velocity", strconv.Itoa(int(velocity)))
|
||||
url.RawQuery = query.Encode()
|
||||
}
|
||||
|
||||
// If body provided, setup a reader for it.
|
||||
var body io.Reader
|
||||
if trig.Body != "" {
|
||||
body = strings.NewReader(trig.Body)
|
||||
}
|
||||
|
||||
// If debugging, log that we're starting a request.
|
||||
if trig.DebugRequest {
|
||||
log.Printf("Starting request for trigger: %s %s\n%s\n", trig.Method, url.String(), logInfo)
|
||||
}
|
||||
|
||||
// Make the request.
|
||||
req, err := http.NewRequest(trig.Method, url.String(), body)
|
||||
if err != nil {
|
||||
log.Printf("Trigger failed to parse url: %s\n %s\n", err, logInfo)
|
||||
continue
|
||||
}
|
||||
|
||||
// Add headers to the request.
|
||||
req.Header = trig.Headers
|
||||
|
||||
// Configure transport with trigger config.
|
||||
tr := &http.Transport{
|
||||
TLSClientConfig: &tls.Config{InsecureSkipVerify: trig.InsecureSkipVerify},
|
||||
}
|
||||
client := &http.Client{Transport: tr}
|
||||
|
||||
// Perform the request.
|
||||
res, err := client.Do(req)
|
||||
if err != nil {
|
||||
log.Printf("Trigger failed to request: %s\n %s\n", err, logInfo)
|
||||
continue
|
||||
}
|
||||
|
||||
// Close the body at end of request.
|
||||
defer res.Body.Close()
|
||||
|
||||
// If debug enabled, read the body and log it.
|
||||
if trig.DebugRequest {
|
||||
body, err := io.ReadAll(res.Body)
|
||||
// Parse the URL to make sure its valid.
|
||||
url, err := url.Parse(trig.URL)
|
||||
// If not valid, we need to stop processing this request.
|
||||
if err != nil {
|
||||
log.Printf("Trigger failed to read body: %s\n %s\n", err, logInfo)
|
||||
r.Log(ErrorLog, "Trigger failed to parse url: %s\n %s", err, logInfo)
|
||||
continue
|
||||
}
|
||||
log.Printf("Trigger response: %s\n%s\n", logInfo, string(body))
|
||||
|
||||
// If MIDI info needs to be added to the request, add it.
|
||||
if trig.MidiInfoInRequest {
|
||||
query := url.Query()
|
||||
query.Add("channel", strconv.Itoa(int(channel)))
|
||||
query.Add("note", strconv.Itoa(int(note)))
|
||||
query.Add("velocity", strconv.Itoa(int(velocity)))
|
||||
url.RawQuery = query.Encode()
|
||||
}
|
||||
|
||||
// If body provided, setup a reader for it.
|
||||
var body io.Reader
|
||||
if trig.Body != "" {
|
||||
body = strings.NewReader(trig.Body)
|
||||
}
|
||||
|
||||
// If debugging, log that we're starting a request.
|
||||
r.Log(DebugLog, "Starting request for trigger: %s %s\n%s", trig.Method, url.String(), logInfo)
|
||||
|
||||
// Make the request.
|
||||
req, err := http.NewRequest(trig.Method, url.String(), body)
|
||||
if err != nil {
|
||||
r.Log(ErrorLog, "Trigger failed to parse url: %s\n %s", err, logInfo)
|
||||
continue
|
||||
}
|
||||
|
||||
// Add headers to the request.
|
||||
req.Header = trig.Headers
|
||||
|
||||
// Configure transport with trigger config.
|
||||
tr := &http.Transport{
|
||||
TLSClientConfig: &tls.Config{InsecureSkipVerify: trig.InsecureSkipVerify},
|
||||
}
|
||||
client := &http.Client{Transport: tr}
|
||||
|
||||
// Perform the request.
|
||||
res, err := client.Do(req)
|
||||
if err != nil {
|
||||
r.Log(ErrorLog, "Trigger failed to request: %s\n %s", err, logInfo)
|
||||
continue
|
||||
}
|
||||
|
||||
// Close the body at end of request.
|
||||
defer res.Body.Close()
|
||||
|
||||
// If debug enabled, read the body and log it.
|
||||
if r.LogLevel >= DebugLog {
|
||||
body, err := io.ReadAll(res.Body)
|
||||
if err != nil {
|
||||
r.Log(ErrorLog, "Trigger failed to read body: %s\n %s", err, logInfo)
|
||||
continue
|
||||
}
|
||||
r.Log(DebugLog, "Trigger response: %s\n%s", logInfo, string(body))
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -141,7 +278,7 @@ func (m *MidiRouter) Handler(w http.ResponseWriter, r *http.Request) {
|
||||
// Check each request trigger for ones that match the request URI.
|
||||
for _, t := range m.RequestTriggers {
|
||||
// If matches request, process MIDI message.
|
||||
if t.URI == r.URL.RawPath {
|
||||
if t.URI != "" && t.URI == r.URL.RawPath {
|
||||
// Set default values to those from this trigger.
|
||||
channel, note, velocity := t.Channel, t.Note, t.Velocity
|
||||
// If MIDI info is in the request query, update to request.
|
||||
@ -179,7 +316,7 @@ func (m *MidiRouter) Handler(w http.ResponseWriter, r *http.Request) {
|
||||
// Get send function for output.
|
||||
send, err := midi.SendTo(m.MidiOut)
|
||||
if err != nil {
|
||||
log.Printf("Failed to get midi sender for request: %s\n%s\n", t.URI, err)
|
||||
m.Log(ErrorLog, "Failed to get midi sender for request: %s\n%s", t.URI, err)
|
||||
http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
|
||||
return
|
||||
}
|
||||
@ -193,7 +330,7 @@ func (m *MidiRouter) Handler(w http.ResponseWriter, r *http.Request) {
|
||||
// Send MIDI message.
|
||||
err = send(msg)
|
||||
if err != nil {
|
||||
log.Printf("Failed to send midi message: %s\n%s\n", t.URI, err)
|
||||
m.Log(ErrorLog, "Failed to send midi message: %s\n%s", t.URI, err)
|
||||
http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
|
||||
return
|
||||
}
|
||||
@ -204,6 +341,116 @@ func (m *MidiRouter) Handler(w http.ResponseWriter, r *http.Request) {
|
||||
}
|
||||
}
|
||||
|
||||
// Send config to MQTT status.
|
||||
func (r *MidiRouter) SendStatus() {
|
||||
// If disabled, ignore.
|
||||
if r.MQTT.DisableConfigSend {
|
||||
return
|
||||
}
|
||||
|
||||
// Make JSON dump.
|
||||
config, err := json.Marshal(&r)
|
||||
if err != nil {
|
||||
r.Log(ErrorLog, "Json Error: %s", err)
|
||||
}
|
||||
|
||||
// Send config.
|
||||
r.MqttClient.Publish(r.MQTT.Topic+"/status", 0, true, config)
|
||||
}
|
||||
|
||||
// Handle MQTT events.
|
||||
func (r *MidiRouter) MqttOnEvent(client mqtt.Client, message mqtt.Message) {
|
||||
r.Log(ReceiveLog, "<- [MQTT] %s: %s\n", message.Topic(), message.Payload())
|
||||
|
||||
// Check commands to see if one matches this topic.
|
||||
for _, t := range r.RequestTriggers {
|
||||
if (t.MqttTopic != "" && message.Topic() == t.MqttTopic) ||
|
||||
(t.MqttSubTopic != "" && message.Topic() == r.MQTT.Topic+"/"+t.MqttSubTopic) {
|
||||
// Set default values to those from this trigger.
|
||||
channel, note, velocity := t.Channel, t.Note, t.Velocity
|
||||
|
||||
// If arguments allowed and provided, parse, otherwise use default payload.
|
||||
arguments := MQTTPayload{
|
||||
Channel: channel,
|
||||
Note: note,
|
||||
Velocity: velocity,
|
||||
}
|
||||
if !t.DisallowPayload && len(message.Payload()) != 0 {
|
||||
err := json.Unmarshal(message.Payload(), &arguments)
|
||||
if err != nil {
|
||||
r.Log(ErrorLog, "Json Error: %s", err)
|
||||
return
|
||||
}
|
||||
channel = arguments.Channel
|
||||
note = arguments.Note
|
||||
velocity = arguments.Velocity
|
||||
}
|
||||
|
||||
// Get send function for output.
|
||||
send, err := midi.SendTo(r.MidiOut)
|
||||
if err != nil {
|
||||
log.Printf("Failed to get midi sender for request: %s\n%s\n", message.Topic(), err)
|
||||
return
|
||||
}
|
||||
|
||||
// Make the MIDI message based on information.
|
||||
msg := midi.NoteOn(channel, note, velocity)
|
||||
if velocity == 0 {
|
||||
msg = midi.NoteOff(channel, note)
|
||||
}
|
||||
|
||||
// Send MIDI message.
|
||||
err = send(msg)
|
||||
if err != nil {
|
||||
log.Printf("Failed to send midi message: %s\n%s\n", message.Topic(), err)
|
||||
return
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// If standard send topic.
|
||||
if strings.HasPrefix(message.Topic(), r.MQTT.Topic+"/send") {
|
||||
// If arguments allowed and provided, parse, otherwise use default payload.
|
||||
var arguments MQTTPayload
|
||||
if len(message.Payload()) != 0 {
|
||||
err := json.Unmarshal(message.Payload(), &arguments)
|
||||
if err != nil {
|
||||
r.Log(ErrorLog, "Json Error: %s", err)
|
||||
return
|
||||
}
|
||||
// Get send function for output.
|
||||
send, err := midi.SendTo(r.MidiOut)
|
||||
if err != nil {
|
||||
log.Printf("Failed to get midi sender for request: %s\n%s\n", message.Topic(), err)
|
||||
return
|
||||
}
|
||||
|
||||
// Make the MIDI message based on information.
|
||||
msg := midi.NoteOn(arguments.Channel, arguments.Note, arguments.Velocity)
|
||||
if arguments.Velocity == 0 {
|
||||
msg = midi.NoteOff(arguments.Channel, arguments.Note)
|
||||
}
|
||||
|
||||
// Send MIDI message.
|
||||
err = send(msg)
|
||||
if err != nil {
|
||||
log.Printf("Failed to send midi message: %s\n%s\n", message.Topic(), err)
|
||||
return
|
||||
}
|
||||
}
|
||||
} else if message.Topic() == r.MQTT.Topic+"/status/check" {
|
||||
r.SendStatus()
|
||||
}
|
||||
}
|
||||
|
||||
// Subscribe to MQTT Topic.
|
||||
func (r *MidiRouter) MqttSubscribe(topic string) {
|
||||
r.Log(DebugLog, "Subscribing MQTT: %s", topic)
|
||||
if t := r.MqttClient.Subscribe(topic, 0, r.MqttOnEvent); t.Wait() && t.Error() != nil {
|
||||
r.Log(ErrorLog, "MQTT Subscribe Error: %s", t.Error())
|
||||
}
|
||||
}
|
||||
|
||||
// Connect to MIDI devices and start listening.
|
||||
func (r *MidiRouter) Connect() {
|
||||
// If request triggers defined, find the out port.
|
||||
@ -234,19 +481,13 @@ func (r *MidiRouter) Connect() {
|
||||
switch {
|
||||
// Get notes with an velocity set.
|
||||
case msg.GetNoteStart(&channel, ¬e, &velocity):
|
||||
// If debug, log.
|
||||
if r.DebugListener {
|
||||
log.Printf("starting note %s(%d) on channel %v with velocity %v\n", midi.Note(note), note, channel, velocity)
|
||||
}
|
||||
r.Log(ReceiveLog, "starting note %s(%d) on channel %v with velocity %v", midi.Note(note), note, channel, velocity)
|
||||
// Process request.
|
||||
r.sendRequest(channel, note, velocity)
|
||||
|
||||
// If no velocity is set, an note end message is received.
|
||||
case msg.GetNoteEnd(&channel, ¬e):
|
||||
// If debug, log.
|
||||
if r.DebugListener {
|
||||
log.Printf("ending note %s(%d) on channel %v\n", midi.Note(note), note, channel)
|
||||
}
|
||||
r.Log(ReceiveLog, "ending note %s(%d) on channel %v", midi.Note(note), note, channel)
|
||||
// Process request.
|
||||
r.sendRequest(channel, note, 0)
|
||||
default:
|
||||
@ -254,12 +495,42 @@ func (r *MidiRouter) Connect() {
|
||||
}
|
||||
})
|
||||
if err != nil {
|
||||
log.Printf("Error listening to device: %s\n", err)
|
||||
r.Log(ErrorLog, "Error listening to device: %s", err)
|
||||
return
|
||||
}
|
||||
|
||||
// Update stop function for disconnects.
|
||||
r.ListenerStop = stop
|
||||
|
||||
if r.MQTT.Host != "" && r.MQTT.Port != 0 {
|
||||
// Connect to MQTT.
|
||||
mqtt_opts := mqtt.NewClientOptions()
|
||||
mqtt_opts.AddBroker(fmt.Sprintf("tcp://%s:%d", r.MQTT.Host, r.MQTT.Port))
|
||||
mqtt_opts.SetClientID(r.MQTT.ClientId)
|
||||
mqtt_opts.SetUsername(r.MQTT.User)
|
||||
mqtt_opts.SetPassword(r.MQTT.Password)
|
||||
r.MqttClient = mqtt.NewClient(mqtt_opts)
|
||||
|
||||
// Connect and failures are fatal exiting service.
|
||||
r.Log(DebugLog, "Connecting to MQTT")
|
||||
if t := r.MqttClient.Connect(); t.Wait() && t.Error() != nil {
|
||||
log.Fatalf("MQTT error: %s", t.Error())
|
||||
return
|
||||
}
|
||||
|
||||
// Subscribe to MQTT topics.
|
||||
r.MqttSubscribe(r.MQTT.Topic + "/send")
|
||||
r.MqttSubscribe(r.MQTT.Topic + "/status/check")
|
||||
// Subscribe to command topics configured.
|
||||
for _, trig := range r.RequestTriggers {
|
||||
if trig.MqttTopic != "" {
|
||||
r.MqttSubscribe(trig.MqttTopic)
|
||||
}
|
||||
if trig.MqttSubTopic != "" {
|
||||
r.MqttSubscribe(r.MQTT.Topic + "/" + trig.MqttSubTopic)
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// On disconnect, stop and remove output device.
|
||||
|
||||
Loading…
Reference in New Issue
Block a user