From fd3a6d87c4c96530f5bb5923c16a77bb558109c5 Mon Sep 17 00:00:00 2001 From: Arsen Musayelyan Date: Wed, 21 Apr 2021 19:29:14 -0700 Subject: [PATCH] Initial Commit --- .envrc | 1 + .gitignore | 5 + LICENSE | 674 +++++++++++++++++++++++++++ Makefile | 13 + README.md | 35 ++ action.go | 93 ++++ activate.wav | Bin 0 -> 41954 bytes audio.go | 116 +++++ config.go | 96 ++++ go.mod | 14 + go.sum | 54 +++ logging.go | 27 ++ main.go | 327 +++++++++++++ plugins.go | 103 ++++ plugins/shell/shell.go | 44 ++ plugins/time/time.go | 31 ++ plugins/wolframalpha/wolframalpha.go | 90 ++++ symbols.go | 45 ++ trident.example.toml | 26 ++ 19 files changed, 1794 insertions(+) create mode 100644 .envrc create mode 100644 .gitignore create mode 100644 LICENSE create mode 100644 Makefile create mode 100644 README.md create mode 100644 action.go create mode 100644 activate.wav create mode 100644 audio.go create mode 100644 config.go create mode 100644 go.mod create mode 100644 go.sum create mode 100644 logging.go create mode 100644 main.go create mode 100644 plugins.go create mode 100644 plugins/shell/shell.go create mode 100644 plugins/time/time.go create mode 100644 plugins/wolframalpha/wolframalpha.go create mode 100644 symbols.go create mode 100644 trident.example.toml diff --git a/.envrc b/.envrc new file mode 100644 index 0000000..5a833ec --- /dev/null +++ b/.envrc @@ -0,0 +1 @@ +export LD_LIBRARY_PATH="." diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..8882a33 --- /dev/null +++ b/.gitignore @@ -0,0 +1,5 @@ +.idea/ +/deepspeech.pbmm +/deepspeech.scorer +/trident +/trident.toml \ No newline at end of file diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..f288702 --- /dev/null +++ b/LICENSE @@ -0,0 +1,674 @@ + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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If not, see . + +Also add information on how to contact you by electronic and paper mail. + + If the program does terminal interaction, make it output a short +notice like this when it starts in an interactive mode: + + Copyright (C) + This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, your program's commands +might be different; for a GUI interface, you would use an "about box". + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU GPL, see +. + + The GNU General Public License does not permit incorporating your program +into proprietary programs. If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. But first, please read +. diff --git a/Makefile b/Makefile new file mode 100644 index 0000000..071bfb3 --- /dev/null +++ b/Makefile @@ -0,0 +1,13 @@ +all: action.go config.go audio.go logging.go main.go plugins.go + go build + +install: trident trident.example.toml deepspeech.pbmm deepspeech.scorer + rm -rf /opt/trident/ + mkdir -p /opt/trident/ + install -Dm755 trident /opt/trident/trident + cp model.pbmm /opt/trident/ + cp model.scorer /opt/trident/ + cp trident.example.toml /opt/trident/trident.toml + cp -r plugins /opt/trident/ + +.PHONY: all install \ No newline at end of file diff --git a/README.md b/README.md new file mode 100644 index 0000000..861c573 --- /dev/null +++ b/README.md @@ -0,0 +1,35 @@ +# Trident + +Personal voice assistant written in go using DeepSpeech. This was mainly created for personal use, so there may be some edge cases unaccounted for. + +--- + +#### Prerequisites + +The prerequisites for trident are: +- libdeepspeech and DeepSpeech models (speech to text) +- mimic (text to speech) +- go + +`libdeepspeech` along with its models can be found in [its github releases](https://github.com/mozilla/DeepSpeech/releases/). Be sure to download the `native_client` tarball for your platform and the `.pbmm` and `.scorer` files. + +`mimic` can be installed via an [install script](https://github.com/MycroftAI/mycroft-core/blob/dev/scripts/install-mimic.sh) or its AUR package if using Arch Linux or its derivatives. + +### Installation + +Move the previously downloaded models (`.pbmm` and `.scorer`) into this repo as `deepspeech.pbmm` and `deepspeech.scorer`. Then, follow the next steps. + +To build trident, run: +```shell +make +``` +After that, install by running: +```shell +sudo make install +``` + +### Customization + +To change the activation tone, replace the `activate.wav` file with any valid wav file and rebuild. The file will be embedded in the executable via `//go:embed`. + +Trident has a config file called `trident.toml`. It will first look for it in `/trident.toml` (config directory as defined by `os.UserConfigDir()`), then it will look for it in the same directory as the executable. \ No newline at end of file diff --git a/action.go b/action.go new file mode 100644 index 0000000..3d19b9d --- /dev/null +++ b/action.go @@ -0,0 +1,93 @@ +/* + * Copyright (C) 2021 Arsen Musayelyan + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +package main + +import ( + "os" + "regexp" + "strconv" +) + +// Attempt to match function in config to provided string +func getAction(c *Config, tts *string) (*Action, bool) { + // For every action in config + for _, action := range c.Actions { + // Attempt to compile configured regular expression + regex, err := regexp.Compile(action.Phrase) + if err != nil { + return nil, false + } + // Check if string matches action + matched := regex.MatchString(*tts) + if matched { + return &action, true + } + } + return nil, false +} + +// Perform action with input +func performAction(a *Action, tts *string, plugins map[string]pluginFunc) (bool, error) { + // Attempt to compile configured regular expression + regex, err := regexp.Compile(a.Phrase) + if err != nil { + return false, err + } + // Find string submatches in string using regular expression + match := regex.FindStringSubmatch(*tts) + strExpanded := false + // Expand instances of $var in action input + retCmd := os.Expand(a.Input, func(in string) string { + strExpanded = true + // Attempt to convert string to integer + inputInt, err := strconv.Atoi(in) + // If successful + if err == nil { + // If index nonexistent, return empty string + if len(match) <= inputInt { + return "" + } + // Return match at index + return match[inputInt] + } + + // Get subexpression index for input string + subIndex := regex.SubexpIndex(in) + // If regex contains subexpression with specified name and match contains index + if subIndex != -1 && len(match) >= subIndex { + // Return string matched at index + return match[subIndex] + } + // If nothing worked, put variable back + return "$" + in + }) + + // If output remained the same and string was expanded + if a.Input == retCmd && strExpanded { + return false, nil + } + + // If type of action is noop, do nothing and return + if a.Type == "noop" { + return true, nil + } + + // Run plugin with input + plugins[a.Type](retCmd, a.Data) + return true, nil +} diff --git 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zOV{#y>+{5)%kSa+FLA|xFTX$L*xR-IzWBR)yO!U_`@M0+e=EOtZ(QYnE5A4Xe*J6t mJ-jdf{@&i#zrQ{opX=ZA?|AFqyEneQaqdmF^1tnk_kRJ3_Xjip literal 0 HcmV?d00001 diff --git a/audio.go b/audio.go new file mode 100644 index 0000000..2ef3ebd --- /dev/null +++ b/audio.go @@ -0,0 +1,116 @@ +/* + * Copyright (C) 2021 Arsen Musayelyan + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +package main + +import ( + "bytes" + _ "embed" + "encoding/binary" + "errors" + ds "github.com/asticode/go-astideepspeech" + "github.com/gen2brain/malgo" + "github.com/youpy/go-wav" + "io" + "sync" +) + +// Safe stream using mutex to fix race conditions +type SafeStream struct { + sync.Mutex + *ds.Stream +} + +// Convert raw audio to slice of int16 +func convToInt16Slice(r io.Reader) ([]int16, error) { + // Create nil output array + var out []int16 + for { + var sample int16 + // Attempt to read little endian binary from sample into int16 + err := binary.Read(r, binary.LittleEndian, &sample) + switch { + case errors.Is(err, io.EOF): + // If error is EOF, return output with no error + return out, nil + case err != nil: + // If error is something other than EOF, return error + return nil, err + } + // If sample contains audio + if sample != 0 { + // Add it to output + out = append(out, sample) + } + } +} + +//go:embed activate.wav +var activationTone []byte + +// Play activation tone to audio device +func playActivationTone(ctx *malgo.AllocatedContext) error { + // Create new reader for embedded activation tone + buf := bytes.NewReader(activationTone) + + // Create new wav reader for activation tone reader + wavReader := wav.NewReader(buf) + // Get wav file format + format, err := wavReader.Format() + if err != nil { + return err + } + + // Set device configuration options + deviceConfig := malgo.DefaultDeviceConfig(malgo.Playback) + deviceConfig.Playback.Format = malgo.FormatS16 + deviceConfig.Playback.Channels = uint32(format.NumChannels) + deviceConfig.SampleRate = format.SampleRate + deviceConfig.Alsa.NoMMap = 1 + + // Create new channel waiting for completion + done := make(chan bool) + onSamples := func(output, _ []byte, _ uint32) { + // Read as much audio into output as will fit + n, err := io.ReadFull(wavReader, output) + // If error occurred or no bytes read + if err != nil || n == 0 { + // Signal completion + done <- true + } + } + + // Initialize audio device using configuration + device, err := malgo.InitDevice(ctx.Context, deviceConfig, malgo.DeviceCallbacks{ + Data: onSamples, + }) + if err != nil { + return err + } + // Uninitialize at end of function + defer device.Uninit() + + // Start audio device + err = device.Start() + if err != nil { + return err + } + + // Wait for completion signal + <-done + return nil +} diff --git a/config.go b/config.go new file mode 100644 index 0000000..b2b9dea --- /dev/null +++ b/config.go @@ -0,0 +1,96 @@ +/* + * Copyright (C) 2021 Arsen Musayelyan + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +package main + +import ( + "github.com/pelletier/go-toml" + "go/build" + "os" + "path/filepath" + "time" +) + +// Config stores the root of the TOML config +type Config struct { + ActivationPhrase string `toml:"activationPhrase"` + ActivationTime time.Duration `toml:"activationTime"` + IPCEnabled bool `toml:"ipcEnabled"` + Actions []Action `toml:"action"` +} + +// Action stores voice-activated actions in config +type Action struct { + Name string `toml:"name"` + Type string `toml:"type"` + Phrase string `toml:"phrase"` + Input string `toml:"input,omitempty"` + Data map[string]interface{} `toml:"data,omitempty"` +} + +// getConfig parses and returns a TOML config +func getConfig(path string) (*Config, error) { + // Open file at given path + file, err := os.Open(filepath.Clean(path)) + if err != nil { + return nil, err + } + // Create new nil struct + var out Config + // Create new TOML decoder reading from file + dec := toml.NewDecoder(file) + // Decode contents of file to struct + err = dec.Decode(&out) + if err != nil { + return nil, err + } + return &out, nil +} + +// Get all relevant paths +func configEnv() (gopath, configDir, execDir, confPath string) { + // Get path to currently running executable + execPath, err := os.Executable() + if err != nil { + log.Fatal().Err(err).Msg("Error getting executable path") + } + // Get current user's configuration directory + confDir, err := os.UserConfigDir() + if err != nil { + log.Fatal().Err(err).Msg("Error getting config directory") + } + // Try to get GOPATH environment variable + gopath = os.Getenv("GOPATH") + // If not set + if gopath == "" { + // Use default GOPATH + gopath = build.Default.GOPATH + } + // Set configuration directory to /trident + configDir = filepath.Join(confDir, "trident") + // Set executable directory to the directory of execPath + execDir = filepath.Dir(execPath) + // Set config path to file trident.toml inside config directory + confPath = filepath.Join(configDir, "trident.toml") + // If file is not accessible + if _, err := os.Stat(confPath); err != nil { + // Use config in same executable directory + confPath = filepath.Join(execDir, "trident.toml") + } + // Return all variables + return +} \ No newline at end of file diff --git a/go.mod b/go.mod new file mode 100644 index 0000000..c3b87de --- /dev/null +++ b/go.mod @@ -0,0 +1,14 @@ +module trident + +go 1.16 + +require ( + github.com/asticode/go-astideepspeech v0.10.0 + github.com/gen2brain/malgo v0.10.29 + github.com/pelletier/go-toml v1.9.0 + github.com/rs/zerolog v1.21.0 + github.com/spf13/pflag v1.0.5 + github.com/stretchr/testify v1.7.0 // indirect + github.com/traefik/yaegi v0.9.17 + github.com/youpy/go-wav v0.1.0 +) diff --git a/go.sum b/go.sum new file mode 100644 index 0000000..39cf1ae --- /dev/null +++ b/go.sum @@ -0,0 +1,54 @@ +github.com/asticode/go-astideepspeech v0.10.0 h1:iMns9KIFdNrzmR77akHIsNM/qUO4IP6/N/WKX5SZr1o= +github.com/asticode/go-astideepspeech v0.10.0/go.mod h1:SJCkfh5e79BgSQqKEEAtfjZT0yOekjKEiB3FVOTrpog= +github.com/cheekybits/is v0.0.0-20150225183255-68e9c0620927/go.mod h1:h/aW8ynjgkuj+NQRlZcDbAbM1ORAbXjXX77sX7T289U= +github.com/coreos/go-systemd v0.0.0-20190321100706-95778dfbb74e/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4= +github.com/cryptix/wav v0.0.0-20180415113528-8bdace674401/go.mod h1:knK8fd+KPlGGqSUWogv1DQzGTwnfUvAi0cIoWyOG7+U= +github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8= +github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= +github.com/gen2brain/malgo v0.10.29 h1:bTYiUTUKJsEomNby+W0hgyLrOttUXIk4lTEnKA54iqM= +github.com/gen2brain/malgo v0.10.29/go.mod h1:zHSUNZAXfCeNsZou0RtQ6Zk7gDYLIcKOrUWtAdksnEs= +github.com/pelletier/go-toml v1.9.0 h1:NOd0BRdOKpPf0SxkL3HxSQOG7rNh+4kl6PHcBPFs7Q0= +github.com/pelletier/go-toml v1.9.0/go.mod h1:u1nR/EPcESfeI/szUZKdtJ0xRNbUoANCkoOuaOx1Y+c= +github.com/pkg/errors v0.9.1/go.mod 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v0.0.0-20210119212857-b64e53b001e4/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= +golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ= +golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ= +golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ= +golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo= +golang.org/x/tools v0.1.0/go.mod h1:xkSsbof2nBLbhDlRMhhhyNLN/zl3eTqcnHD5viDpcZ0= +golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= +golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= +golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= +gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= +gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo= +gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= diff --git a/logging.go b/logging.go new file mode 100644 index 0000000..0d5db03 --- /dev/null +++ b/logging.go @@ -0,0 +1,27 @@ +/* + * Copyright (C) 2021 Arsen Musayelyan + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +package main + +import ( + "github.com/rs/zerolog" + zlog "github.com/rs/zerolog/log" + "os" +) + +// Set global logger to zerolog +var log = zlog.Output(zerolog.ConsoleWriter{Out: os.Stderr}) diff --git a/main.go b/main.go new file mode 100644 index 0000000..a2386d9 --- /dev/null +++ b/main.go @@ -0,0 +1,327 @@ +/* + * Copyright (C) 2021 Arsen Musayelyan + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +package main + +import ( + "bufio" + "bytes" + ds "github.com/asticode/go-astideepspeech" + "github.com/gen2brain/malgo" + flag "github.com/spf13/pflag" + "net" + "os" + "os/signal" + "path/filepath" + "strconv" + "strings" + "syscall" + "time" +) + +var verbose *bool +var execDir string +var configDir string + +func main() { + // Configure environment (paths to resources) + var gopath, confPath string + gopath, configDir, execDir, confPath = configEnv() + + // Define and parse command line flags + tfLogLevel := flag.Int("tf-log-level", 2, "Log level for TensorFlow") + verbose = flag.BoolP("verbose", "v", false, "Log more events") + configPath := flag.StringP("config", "c", confPath, "Location of trident TOML config") + modelPath := flag.StringP("model", "m", filepath.Join(execDir, "deepspeech.pbmm"), "Path to DeepSpeech model") + scorerPath := flag.StringP("scorer", "s", filepath.Join(execDir, "deepspeech.scorer"), "Path to DeepSpeech scorer") + socketPath := flag.StringP("socket", "S", filepath.Join(configDir, "trident.sock"), "Path to UNIX socket for IPC") + GOPATH := flag.String("gopath", gopath, "GOPATH for use with plugins") + flag.Parse() + + // Set TensorFlow log level to specified level (default 2) + _ = os.Setenv("TF_CPP_MIN_LOG_LEVEL", strconv.Itoa(*tfLogLevel)) + + // Get and parse TOML config + config, err := getConfig(*configPath) + if err != nil { + log.Fatal().Err(err).Msg("Error getting TOML config") + } + + // Create new channel storing os.Signal + sigChannel := make(chan os.Signal, 1) + // Notify channel upon reception of specified signals + signal.Notify(sigChannel, + syscall.SIGINT, + syscall.SIGTERM, + syscall.SIGHUP, + syscall.SIGQUIT, + ) + // Create new goroutine to handle signals gracefully + go func() { + // Wait for signal + sig := <-sigChannel + // Log reception of signal + log.Info().Str("signal", sig.String()).Msg("Received signal, shutting down") + // If IPC is enabled in the config, remove the UNIX socket + if config.IPCEnabled { + _ = os.RemoveAll(*socketPath) + } + // Exit with code 0 + os.Exit(0) + }() + + // Create new DeepSpeech model + model, err := ds.New(*modelPath) + if err != nil { + log.Fatal().Err(err).Msg("Error opening DeepSpeech model") + } + + //model.SetBeamWidth(50) + + // Initialize available plugins + plugins := initPlugins(*GOPATH) + + // If IPC is enabled in config + if config.IPCEnabled { + // Remove UNIX socket ignoring error + _ = os.RemoveAll(*socketPath) + // Listen on UNIX socket + ln, err := net.Listen("unix", *socketPath) + if err != nil { + log.Fatal().Err(err).Msg("Error listening on UNIX socket") + } + go func() { + for { + // Accept any connection when it arrives + conn, err := ln.Accept() + if err != nil { + log.Fatal().Err(err).Msg("Error accepting connection") + } + go func(conn net.Conn) { + // Close connection at end of function + defer conn.Close() + // Create new scanner for connection (default is ScanLines) + scanner := bufio.NewScanner(conn) + // Scan until EOF + for scanner.Scan() { + // If error encountered, return from function + if scanner.Err() != nil { + return + } + // Get text from scanner + input := scanner.Text() + // Attempt to match text to action and return action + action, ok := getAction(config, &input) + // If match founc + if ok { + // Log performing action + log.Info().Str("action", action.Name).Str("source", "socket").Msg("Performing action") + // Perform returned action + done, err := performAction(action, &input, plugins) + if err != nil { + log.Warn().Err(err).Str("action", action.Name).Msg("Error performing configured action") + } + // If action complete, close connection and return + if done { + conn.Close() + return + } + } + } + }(conn) + } + }() + } + + // Initialize audio context + ctx, err := malgo.InitContext(nil, malgo.ContextConfig{}, func(message string) { + log.Warn().Msg(message) + }) + if err != nil { + log.Fatal().Err(err).Msg("Error initializing malgo context") + } + // Uninitialize and free at end of function + defer func() { + _ = ctx.Uninit() + ctx.Free() + }() + + // Set device configuration options + deviceConfig := malgo.DefaultDeviceConfig(malgo.Capture) + deviceConfig.Capture.Format = malgo.FormatS16 + deviceConfig.Capture.Channels = 1 + deviceConfig.Playback.Format = malgo.FormatS16 + deviceConfig.Playback.Channels = 1 + deviceConfig.SampleRate = uint32(model.SampleRate()) + deviceConfig.Alsa.NoMMap = 1 + + // Create new buffer to store audio samples + captured := &bytes.Buffer{} + onRecvFrames := func(_, sample []byte, _ uint32) { + // Upon receipt of sample, write to buffer + captured.Write(sample) + } + log.Info().Msg("Listening to audio events") + // Initialize audio device using configuration options + device, err := malgo.InitDevice(ctx.Context, deviceConfig, malgo.DeviceCallbacks{ + Data: onRecvFrames, + }) + if err != nil { + log.Fatal().Err(err).Msg("Error initializing audio device") + } + // Uninitialize at end of function + defer device.Uninit() + + // Start capture device (begin recording) + err = device.Start() + if err != nil { + log.Fatal().Err(err).Msg("Error starting capture device") + } + + // Set DeepSpeech scorer + err = model.EnableExternalScorer(*scorerPath) + if err != nil { + log.Fatal().Err(err).Msg("Error opening DeepSpeech scorer") + } + + // Create new stream for DeepSpeech model + sttStream, err := model.NewStream() + if err != nil { + log.Fatal().Err(err).Msg("Error creating DeepSpeech stream") + } + // Create a safe stream using sync.Mutex + safeStream := &SafeStream{Stream: sttStream} + + // Create goroutine to clean stream every minute + go func() { + for { + time.Sleep(time.Minute) + // Lock mutex of stream + safeStream.Lock() + // Reset stream and buffer + resetStream(safeStream, model, captured) + if *verbose { + log.Debug().Msg("1m passed; cleaning stream") + } + // Unlock mutex of stream + safeStream.Unlock() + } + }() + + var tts string + listenForActivation := true + for { + time.Sleep(time.Second) + // Convert captured raw audio to slice of int16 + slice, err := convToInt16Slice(captured) + if err != nil { + log.Fatal().Err(err).Msg("Error converting captured audio feed") + } + // Reset buffer + captured.Reset() + // Lock mutex of stream + safeStream.Lock() + // Feed converted audio to stream + safeStream.FeedAudioContent(slice) + // Decode stream without destroying + tts, err = safeStream.IntermediateDecode() + if err != nil { + log.Fatal().Err(err).Msg("Error intermediate decoding stream") + } + // If decoded string contains activation phrase and listenForActivation is true + if strings.Contains(tts, config.ActivationPhrase) && listenForActivation { + // Play activation tone + err = playActivationTone(ctx) + if err != nil { + log.Fatal().Err(err).Msg("Error playing activation tone") + } + // Log detection of activation phrase + log.Info().Msg("Activation phrase detected") + // Reset stream and buffer + resetStream(safeStream, model, captured) + // Create new goroutine to listen for commands + go func() { + // Disable activation + listenForActivation = false + // Enable activation at end of function + defer func() { + listenForActivation = true + }() + // Create timeout channel to trigger after configured time + timeout := time.After(config.ActivationTime) + activationLoop: + for { + time.Sleep(100 * time.Millisecond) + select { + // If timeout has elapsed + case <-timeout: + log.Warn().Msg("Unknown command") + break activationLoop + // If timeout has not elapsed + default: + // Attempt to match decoded string to action + action, ok := getAction(config, &tts) + // If match found + if ok { + // Keep listening if user is talking + for { + // Get length of text to speech string + ttsLen := len(tts) + time.Sleep(time.Second) + // If length has not changed + if ttsLen == len(tts) { + // Break out of for loop + break + } + } + // Log performing action + log.Info().Str("action", action.Name).Str("source", "voice").Msg("Performing action") + // Perform action matched by getAction() + done, err := performAction(action, &tts, plugins) + if err != nil { + log.Warn().Err(err).Str("action", action.Name).Msg("Error performing configured action") + } + // If action is complete + if done { + // Lock mutex of stream + safeStream.Lock() + // Reset stream and buffer + resetStream(safeStream, model, captured) + // Unlock mutex of stream + safeStream.Unlock() + // Return from goroutine + return + } + } + } + } + }() + } + // Unlock mutex of stream + safeStream.Unlock() + } +} + +// Function to reset stream and buffer +func resetStream(s *SafeStream, model *ds.Model, captured *bytes.Buffer) { + // Reset buffer + captured.Reset() + // Discard stream (workaround for lack of Clear function) + s.Discard() + // Create new stream, setting it to same location as old + s.Stream, _ = model.NewStream() +} diff --git a/plugins.go b/plugins.go new file mode 100644 index 0000000..06b29b5 --- /dev/null +++ b/plugins.go @@ -0,0 +1,103 @@ +/* + * Copyright (C) 2021 Arsen Musayelyan + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +package main + +import ( + "fmt" + "github.com/traefik/yaegi/interp" + "github.com/traefik/yaegi/stdlib" + "github.com/traefik/yaegi/stdlib/unrestricted" + "io/fs" + "path/filepath" +) + +// Create type for plugin functions +type pluginFunc func(string, map[string]interface{}) + +// Initialize all available plugins +func initPlugins(gopath string) map[string]pluginFunc { + log.Info().Msg("Initializing plugins") + out := map[string]pluginFunc{} + + // Create new yaegi Go interpreter with appropriate GOPATH + i := interp.New(interp.Options{GoPath: gopath}) + // Use standard library symbols + i.Use(stdlib.Symbols) + // Use unrestricted symbols (os/exec, syscall, etc.) + i.Use(unrestricted.Symbols) + // Use custom package + i.Use(tridentSymbols) + + // Walk plugin directory + err := filepath.WalkDir(filepath.Join(execDir, "plugins"), func(path string, d fs.DirEntry, err error) error { + // If error encountered, return + if err != nil { + return err + } + // If current path is not a directory or it is the plugin root + if !d.IsDir() || d.Name() == "plugins" { + return nil + } + + // Get name of plugin from directory name + pluginName := filepath.Base(path) + // IF plugin already exists, return error + if _, ok := out[pluginName]; ok { + return fmt.Errorf("plugin %s has already been initialized", pluginName) + } + // If verbose, log which plugin is being initialized + if *verbose { + log.Debug().Str("plugin", pluginName).Msg("Initializing plugin") + } + // Walk directory of specific plugin + err = filepath.WalkDir(path, func(path string, d fs.DirEntry, err error) error { + // If error encountered, return + if err != nil { + return err + } + // If file is not go source, skip + if filepath.Ext(path) != ".go" { + return nil + } + // Evaluate go file + _, err = i.EvalPath(path) + if err != nil { + return err + } + return nil + }) + // If error encountered walking plugin, return + if err != nil { + return err + } + // Get RunPlugin symbol from current plugin + v, err := i.Eval(fmt.Sprintf("%s.RunPlugin", pluginName)) + if err != nil { + return err + } + // Assert RunPlugin symbol as a plugin function and add it to out map + out[pluginName] = v.Interface().(func(string, map[string]interface{})) + return nil + }) + // If error occurred walking directory, log fatally + if err != nil { + log.Fatal().Err(err).Msg("Error initializing plugins") + } + return out +} + diff --git a/plugins/shell/shell.go b/plugins/shell/shell.go new file mode 100644 index 0000000..44d994c --- /dev/null +++ b/plugins/shell/shell.go @@ -0,0 +1,44 @@ +/* + * Copyright (C) 2021 Arsen Musayelyan + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +// shell is a Trident plugin that runs a command in a shell +package shell + +import ( + "os" + "os/exec" +) + +func RunPlugin(program string, data map[string]interface{}) { + var shell string + var ok bool + // Attempt to get shell from config, asserting as string + shell, ok = data["shell"].(string) + // If unsuccessful + if !ok { + // Set shell to default (/bin/sh) + shell = "/bin/sh" + } + // Create command using configured shell or default (/bin/sh) + cmd := exec.Command(shell, "-c", program) + // Set command environment to system environment + cmd.Env = os.Environ() + // Set command's standard error to system standard error + cmd.Stderr = os.Stderr + // Run command, ignoring error + _ = cmd.Run() +} diff --git a/plugins/time/time.go b/plugins/time/time.go new file mode 100644 index 0000000..327171e --- /dev/null +++ b/plugins/time/time.go @@ -0,0 +1,31 @@ +/* + * Copyright (C) 2021 Arsen Musayelyan + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +// time is a Trident plugin that says the current time using a synthesized voice +package time + +import ( + "time" + "trident" +) + +func RunPlugin(_ string, _ map[string]interface{}) { + // Format time in a way the synthesized voice will understand + formattedTime := time.Now().Format("3 04 PM") + // Say formatted time using voice + trident.Say(formattedTime) +} diff --git a/plugins/wolframalpha/wolframalpha.go b/plugins/wolframalpha/wolframalpha.go new file mode 100644 index 0000000..fa57281 --- /dev/null +++ b/plugins/wolframalpha/wolframalpha.go @@ -0,0 +1,90 @@ +/* + * Copyright (C) 2021 Arsen Musayelyan + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +// wolframalpha is a Trident plugin that queries the WolframAlpha API and says the result +package wolframalpha + +import ( + "encoding/xml" + "fmt" + "log" + "net/http" + "net/url" + "strings" + "trident" +) + +// Result stores the result of the WolframAlpha query +type Result struct { + Pods []Pod `xml:"pod"` +} + +// Pod stores pod tags from result +type Pod struct { + XMLName xml.Name `xml:"pod"` + ID string `xml:"id,attr"` + SubPods []SubPod `xml:"subpod"` +} + +// SubPod stores subpod tags from pod +type SubPod struct { + XMLName xml.Name `xml:"subpod,omitempty"` + Plaintext *Plaintext `xml:"plaintext,omitempty"` +} + +// Plaintext stores plaintext tags from subpod +type Plaintext struct { + XMLName xml.Name `xml:"plaintext"` + String string `xml:",chardata"` +} + +func RunPlugin(query string, data map[string]interface{}) { + // Escape query for inclusion in URL + escapedQuery := url.QueryEscape(query) + // Query WolframAlpha API + res, err := http.Get(fmt.Sprintf("https://api.wolframalpha.com/v2/query?input=%s&appid=%s", escapedQuery, data["appid"].(string))) + if err != nil { + log.Fatalln(err) + } + // Close response body at end of function + defer res.Body.Close() + // Create new nil struct to store query results + var resStruct Result + // Create new XML decoder reading from API response body + dec := xml.NewDecoder(res.Body) + // Decode contents of response body into struct + err = dec.Decode(&resStruct) + if err != nil { + log.Fatalln(err) + } + + // Create string builder to combine results + all := strings.Builder{} + for _, pod := range resStruct.Pods { + switch pod.ID { + case "Result", "RealSolution", "Solution": + // If pod ID is one of the above cases, write it to builder + all.WriteString(pod.ID) + for _, subpod := range pod.SubPods { + // Write string from subpod plaintext tag to builder + all.WriteString(subpod.Plaintext.String) + } + } + } + // Use voice to say built string + trident.Say(all.String()) +} diff --git a/symbols.go b/symbols.go new file mode 100644 index 0000000..ab2ccfb --- /dev/null +++ b/symbols.go @@ -0,0 +1,45 @@ +/* + * Copyright (C) 2021 Arsen Musayelyan + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +package main + +import ( + "github.com/traefik/yaegi/interp" + "os/exec" + "reflect" +) + +// Create custom package for trident +var tridentSymbols = interp.Exports{"trident": { + "Say": reflect.ValueOf(Say), +}} + +// Function to say text using mimic text-to-speech +func Say(text string, args ...string) { + // If mimic exists in PATH + if _, err := exec.LookPath("mimic"); err == nil { + // Set initial argument slice to contain text + argSlice := []string{"-t", text} + // Add any additional arguments to slice + argSlice = append(argSlice, args...) + // Create and run command + exec.Command("mimic", argSlice...).Run() + } else { + // If mimic does not exist in PATH, warn user + log.Warn().Err(err).Str("text", text).Msg("Cannot perform text to speech") + } +} \ No newline at end of file diff --git a/trident.example.toml b/trident.example.toml new file mode 100644 index 0000000..812ef82 --- /dev/null +++ b/trident.example.toml @@ -0,0 +1,26 @@ +activationPhrase = "trident" +activationTime = "10s" +ipcEnabled = true + +[[action]] +name = "dismiss" +type = "noop" +phrase = "dismiss" + +[[action]] +name = "open" +type = "shell" +phrase = "open (?P.+)" +input = "$program" + +[[action]] +name = "time" +type = "time" +phrase = "what time is it|what is the time" + +[[action]] +name = "ask" +type = "wolframalpha" +phrase = "calculate (?P.+)" +input = '$question' +data = {"appid" = "someWolframAlphaAppID"} \ No newline at end of file