From 45f4bb49b95307fe6a5bbd3382c8acc653c1b7e3 Mon Sep 17 00:00:00 2001
From: Mitchell <mgerb42@gmail.com>
Date: Sun, 7 Oct 2018 22:15:35 -0500
Subject: [PATCH] added go dep - removed ffmpeg for saving audio clips

---
 Dockerfile                   |   5 +-
 makefile                     |   6 +-
 readme.md                    |  18 +--
 server/Gopkg.lock            | 289 +++++++++++++++++++++++++++++++++++
 server/Gopkg.toml            |  70 +++++++++
 server/bothandlers/sounds.go |  46 +++++-
 6 files changed, 415 insertions(+), 19 deletions(-)
 create mode 100644 server/Gopkg.lock
 create mode 100644 server/Gopkg.toml

diff --git a/Dockerfile b/Dockerfile
index 56da3f7..a7615a8 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -13,7 +13,10 @@ COPY --from=0 /home/dist /go/src/github.com/mgerb/go-discord-bot/dist
 ADD ./server .
 RUN apk add --no-cache git alpine-sdk
 RUN go get -u github.com/gobuffalo/packr/...
-RUN go get
+RUN go get -u github.com/golang/dep/cmd/dep
+RUN dep ensure
+# need to manually get this dependency because go dep doesn't work well with the C bindings
+RUN go get layeh.com/gopus
 RUN packr build -o /build/server
 
 
diff --git a/makefile b/makefile
index 0f3a524..eef313c 100644
--- a/makefile
+++ b/makefile
@@ -1,8 +1,6 @@
-run:
-	go run ./main.go
-
 install:
-	go get ./server && cd client && npm install
+	cd server && dep ensure
+	cd client && npm install
 
 build-server:
 	cd ./server && packr build -o ../bot ./main.go
diff --git a/readme.md b/readme.md
index cbb9c06..d669e40 100644
--- a/readme.md
+++ b/readme.md
@@ -1,6 +1,6 @@
 # Discord Sound Bot
 
-A soundboard bot for discord with a Go back end and React front end.
+A soundboard bot for discord. Build with Go/React.
 
 ![Image](./screenshots/sound-bot.png)
 
@@ -39,6 +39,7 @@ services:
 - `summon` - summons the bot to your current channel
 - `dismiss` - dismisses the bot from the server
 - `<audio clip>` - play a named audio clip
+- `random` - play a random audio clip
 
 ### Uploading files
 
@@ -79,22 +80,19 @@ Check it out in the "Stats" page on the site.
 
 ### Dependencies
 
-- Go
-- node/npm
+- Go (1.10+)
+- node/npm (node 8)
 - make
 
 ### Compiling
 
-- Make sure dependencies are installed
-- install packr - `go get -u github.com/gobuffalo/packr/...`
+- Install dependencies
+  - packr - `go get -u github.com/gobuffalo/packr/...`
+  - [dep](https://github.com/golang/dep) - `go get -u github.com/golang/dep/cmd/dep`
 - Rename the `config.template.json` to `config.json`
 - add configurations to `config.json`
-- `cd client && npm run dev`
-- `go run main.go`
+- run `make all`
 - open a browser `localhost:<config_port>`
 
 [Packr](https://github.com/gobuffalo/packr) is used to bundle the static web assets into the binary.
 Use these commands to compile the project. The client must be built first.
-
-- `packr build`
-- `packr install`
diff --git a/server/Gopkg.lock b/server/Gopkg.lock
new file mode 100644
index 0000000..3469e42
--- /dev/null
+++ b/server/Gopkg.lock
@@ -0,0 +1,289 @@
+# This file is autogenerated, do not edit; changes may be undone by the next 'dep ensure'.
+
+
+[[projects]]
+  digest = "1:a62f6ed230a8cd138a9efbe718e7d0b0294f139266f5f55cd942769a9aac8de2"
+  name = "github.com/PuerkitoBio/goquery"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "dc2ec5c7ca4d9aae063b79b9f581dd3ea6afd2b2"
+  version = "v1.4.1"
+
+[[projects]]
+  digest = "1:66b3310cf22cdc96c35ef84ede4f7b9b370971c4025f394c89a2638729653b11"
+  name = "github.com/andybalholm/cascadia"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "901648c87902174f774fac311d7f176f8647bdaa"
+  version = "v1.0.0"
+
+[[projects]]
+  digest = "1:4fd5ce7844c22e194005b9e12fee8adc70fb5ba0bbba9e1964d2e3d1f301d789"
+  name = "github.com/bwmarrin/discordgo"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "4a33b9bc7c56cfdb9bb244e33e83cb3941fe2bdc"
+  version = "v0.18.0"
+
+[[projects]]
+  branch = "master"
+  digest = "1:36fe9527deed01d2a317617e59304eb2c4ce9f8a24115bcc5c2e37b3aee5bae4"
+  name = "github.com/gin-contrib/sse"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "22d885f9ecc78bf4ee5d72b937e4bbcdc58e8cae"
+
+[[projects]]
+  digest = "1:9a20e959f4a4b52a79155282a67046fa49869993732ef6d5bc3c48b3e18692cc"
+  name = "github.com/gin-gonic/gin"
+  packages = [
+    ".",
+    "binding",
+    "json",
+    "render",
+  ]
+  pruneopts = "UT"
+  revision = "b869fe1415e4b9eb52f247441830d502aece2d4d"
+  version = "v1.3.0"
+
+[[projects]]
+  branch = "master"
+  digest = "1:602a78a9834f7b1f67186a69970dc0f5f6f9557ef52fd786586e5be14f5a6ed6"
+  name = "github.com/go-audio/audio"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "b697a35b5608fcf1c4f90a9d4f33d76bd70e8fe6"
+
+[[projects]]
+  branch = "master"
+  digest = "1:505ceb99060820f1c99a687795774a1df5a6fd4a3a5dbb4eb915bff3ac3a94d7"
+  name = "github.com/go-audio/wav"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "87c13ac40f038b0316963807a7d476544c7e9136"
+
+[[projects]]
+  digest = "1:c8ad4ba32ae8b71ef2bf5e1bad402aeb99ce77a1240f9b684db8b1ff5353e7ab"
+  name = "github.com/gobuffalo/packr"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "5a2cbb54c4e7d482e3f518c56f1f86f133d5204f"
+  version = "v1.13.7"
+
+[[projects]]
+  digest = "1:97df918963298c287643883209a2c3f642e6593379f97ab400c2a2e219ab647d"
+  name = "github.com/golang/protobuf"
+  packages = ["proto"]
+  pruneopts = "UT"
+  revision = "aa810b61a9c79d51363740d207bb46cf8e620ed5"
+  version = "v1.2.0"
+
+[[projects]]
+  digest = "1:7b5c6e2eeaa9ae5907c391a91c132abfd5c9e8a784a341b5625e750c67e6825d"
+  name = "github.com/gorilla/websocket"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "66b9c49e59c6c48f0ffce28c2d8b8a5678502c6d"
+  version = "v1.4.0"
+
+[[projects]]
+  digest = "1:111ff38c0376c091da851d34ad991fbce6a679a8b53fcc5ebd61b52f07ed197d"
+  name = "github.com/jinzhu/gorm"
+  packages = [
+    ".",
+    "dialects/sqlite",
+  ]
+  pruneopts = "UT"
+  revision = "6ed508ec6a4ecb3531899a69cbc746ccf65a4166"
+  version = "v1.9.1"
+
+[[projects]]
+  branch = "master"
+  digest = "1:fd97437fbb6b7dce04132cf06775bd258cce305c44add58eb55ca86c6c325160"
+  name = "github.com/jinzhu/inflection"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "04140366298a54a039076d798123ffa108fff46c"
+
+[[projects]]
+  digest = "1:3e551bbb3a7c0ab2a2bf4660e7fcad16db089fdcfbb44b0199e62838038623ea"
+  name = "github.com/json-iterator/go"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "1624edc4454b8682399def8740d46db5e4362ba4"
+  version = "v1.1.5"
+
+[[projects]]
+  digest = "1:0a69a1c0db3591fcefb47f115b224592c8dfa4368b7ba9fae509d5e16cdc95c8"
+  name = "github.com/konsorten/go-windows-terminal-sequences"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "5c8c8bd35d3832f5d134ae1e1e375b69a4d25242"
+  version = "v1.0.1"
+
+[[projects]]
+  branch = "master"
+  digest = "1:8c2ec3f7fa853d374b340831554f225ead9ab4cc6932256f0cffbfef8c78d9f5"
+  name = "github.com/mattetti/audio"
+  packages = ["riff"]
+  pruneopts = "UT"
+  revision = "01576cde1f212c296c0b8ef5fa857169770c75b6"
+
+[[projects]]
+  digest = "1:0981502f9816113c9c8c4ac301583841855c8cf4da8c72f696b3ebedf6d0e4e5"
+  name = "github.com/mattn/go-isatty"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "6ca4dbf54d38eea1a992b3c722a76a5d1c4cb25c"
+  version = "v0.0.4"
+
+[[projects]]
+  digest = "1:3cafc6a5a1b8269605d9df4c6956d43d8011fc57f266ca6b9d04da6c09dee548"
+  name = "github.com/mattn/go-sqlite3"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "25ecb14adfc7543176f7d85291ec7dba82c6f7e4"
+  version = "v1.9.0"
+
+[[projects]]
+  digest = "1:33422d238f147d247752996a26574ac48dcf472976eda7f5134015f06bf16563"
+  name = "github.com/modern-go/concurrent"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "bacd9c7ef1dd9b15be4a9909b8ac7a4e313eec94"
+  version = "1.0.3"
+
+[[projects]]
+  digest = "1:e32bdbdb7c377a07a9a46378290059822efdce5c8d96fe71940d87cb4f918855"
+  name = "github.com/modern-go/reflect2"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "4b7aa43c6742a2c18fdef89dd197aaae7dac7ccd"
+  version = "1.0.1"
+
+[[projects]]
+  digest = "1:40e195917a951a8bf867cd05de2a46aaf1806c50cf92eebf4c16f78cd196f747"
+  name = "github.com/pkg/errors"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "645ef00459ed84a119197bfb8d8205042c6df63d"
+  version = "v0.8.0"
+
+[[projects]]
+  branch = "master"
+  digest = "1:d10708438642755d6fd37c570b9d01cb5263e7e4248f813b079b031cdd7cf618"
+  name = "github.com/rylio/ytdl"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "0227c2bacb82a434f2332d7d8c64093615c08a40"
+
+[[projects]]
+  digest = "1:dc2d85c13ac22c22a1f3170a41a8e1b897fa05134aaf533f16df44f66a25b4a1"
+  name = "github.com/sirupsen/logrus"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "a67f783a3814b8729bd2dac5780b5f78f8dbd64d"
+  version = "v1.1.0"
+
+[[projects]]
+  digest = "1:2cab41f59638fdb77dda96ab4f9b5860ef30f48967557254eba127e43c756f2e"
+  name = "github.com/tidwall/gjson"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "1e3f6aeaa5bad08d777ea7807b279a07885dd8b2"
+  version = "v1.1.3"
+
+[[projects]]
+  branch = "master"
+  digest = "1:d3f968e2a2c9f8506ed44b01b605ade0176ba6cf73ff679073e77cfdef2c0d55"
+  name = "github.com/tidwall/match"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "1731857f09b1f38450e2c12409748407822dc6be"
+
+[[projects]]
+  digest = "1:03aa6e485e528acb119fb32901cf99582c380225fc7d5a02758e08b180cb56c3"
+  name = "github.com/ugorji/go"
+  packages = ["codec"]
+  pruneopts = "UT"
+  revision = "b4c50a2b199d93b13dc15e78929cfb23bfdf21ab"
+  version = "v1.1.1"
+
+[[projects]]
+  branch = "master"
+  digest = "1:a6c91777916f37c288a9f2e352feb7567c3ff4c47a3880b391070740d3357e4f"
+  name = "golang.org/x/crypto"
+  packages = [
+    "internal/subtle",
+    "nacl/secretbox",
+    "poly1305",
+    "salsa20/salsa",
+    "ssh/terminal",
+  ]
+  pruneopts = "UT"
+  revision = "e3636079e1a4c1f337f212cc5cd2aca108f6c900"
+
+[[projects]]
+  branch = "master"
+  digest = "1:17a5cb5dbf1abd5193243c18a6d7edcad08fb01a3b75c96ed050623ce69efb16"
+  name = "golang.org/x/net"
+  packages = [
+    "html",
+    "html/atom",
+  ]
+  pruneopts = "UT"
+  revision = "146acd28ed5894421fb5aac80ca93bc1b1f46f87"
+
+[[projects]]
+  branch = "master"
+  digest = "1:19b2eb89a60dafcfe5c699fa21ef51143d9bc4825c155608f81e56e0a9a4bba4"
+  name = "golang.org/x/sys"
+  packages = [
+    "unix",
+    "windows",
+  ]
+  pruneopts = "UT"
+  revision = "4497e2df6f9e69048a54498c7affbbec3294ad47"
+
+[[projects]]
+  digest = "1:76dc72490af7174349349838f2fe118996381b31ea83243812a97e5a0fd5ed55"
+  name = "gopkg.in/dgrijalva/jwt-go.v3"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "06ea1031745cb8b3dab3f6a236daf2b0aa468b7e"
+  version = "v3.2.0"
+
+[[projects]]
+  digest = "1:cbc72c4c4886a918d6ab4b95e347ffe259846260f99ebdd8a198c2331cf2b2e9"
+  name = "gopkg.in/go-playground/validator.v8"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "5f1438d3fca68893a817e4a66806cea46a9e4ebf"
+  version = "v8.18.2"
+
+[[projects]]
+  digest = "1:342378ac4dcb378a5448dd723f0784ae519383532f5e70ade24132c4c8693202"
+  name = "gopkg.in/yaml.v2"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "5420a8b6744d3b0345ab293f6fcba19c978f1183"
+  version = "v2.2.1"
+
+[solve-meta]
+  analyzer-name = "dep"
+  analyzer-version = 1
+  input-imports = [
+    "github.com/bwmarrin/discordgo",
+    "github.com/gin-gonic/gin",
+    "github.com/go-audio/audio",
+    "github.com/go-audio/wav",
+    "github.com/gobuffalo/packr",
+    "github.com/jinzhu/gorm",
+    "github.com/jinzhu/gorm/dialects/sqlite",
+    "github.com/rylio/ytdl",
+    "github.com/sirupsen/logrus",
+    "github.com/tidwall/gjson",
+    "gopkg.in/dgrijalva/jwt-go.v3",
+  ]
+  solver-name = "gps-cdcl"
+  solver-version = 1
diff --git a/server/Gopkg.toml b/server/Gopkg.toml
new file mode 100644
index 0000000..6f056e5
--- /dev/null
+++ b/server/Gopkg.toml
@@ -0,0 +1,70 @@
+# Gopkg.toml example
+#
+# Refer to https://golang.github.io/dep/docs/Gopkg.toml.html
+# for detailed Gopkg.toml documentation.
+#
+# required = ["github.com/user/thing/cmd/thing"]
+ignored = ["layeh.com/gopus"]
+#
+# [[constraint]]
+#   name = "github.com/user/project"
+#   version = "1.0.0"
+#
+# [[constraint]]
+#   name = "github.com/user/project2"
+#   branch = "dev"
+#   source = "github.com/myfork/project2"
+#
+# [[override]]
+#   name = "github.com/x/y"
+#   version = "2.4.0"
+#
+# [prune]
+#   non-go = false
+#   go-tests = true
+#   unused-packages = true
+
+
+[[constraint]]
+  name = "github.com/bwmarrin/discordgo"
+  version = "0.18.0"
+
+[[constraint]]
+  name = "github.com/gin-gonic/gin"
+  version = "1.3.0"
+
+[[constraint]]
+  branch = "master"
+  name = "github.com/go-audio/audio"
+
+[[constraint]]
+  branch = "master"
+  name = "github.com/go-audio/wav"
+
+[[constraint]]
+  name = "github.com/gobuffalo/packr"
+  version = "1.13.7"
+
+[[constraint]]
+  name = "github.com/jinzhu/gorm"
+  version = "1.9.1"
+
+[[constraint]]
+  branch = "master"
+  name = "github.com/rylio/ytdl"
+
+[[constraint]]
+  name = "github.com/sirupsen/logrus"
+  version = "1.1.0"
+
+[[constraint]]
+  name = "github.com/tidwall/gjson"
+  version = "1.1.3"
+
+[[constraint]]
+  name = "gopkg.in/dgrijalva/jwt-go.v3"
+  version = "3.2.0"
+
+[prune]
+  go-tests = true
+  unused-packages = true
diff --git a/server/bothandlers/sounds.go b/server/bothandlers/sounds.go
index b376702..fda19b6 100644
--- a/server/bothandlers/sounds.go
+++ b/server/bothandlers/sounds.go
@@ -18,6 +18,8 @@ import (
 	"layeh.com/gopus"
 
 	"github.com/bwmarrin/discordgo"
+	"github.com/go-audio/audio"
+	"github.com/go-audio/wav"
 	"github.com/mgerb/go-discord-bot/server/config"
 	log "github.com/sirupsen/logrus"
 )
@@ -376,18 +378,54 @@ loop:
 		timestamp := time.Now().UTC().Format("2006-01-02") + "-" + strconv.Itoa(int(time.Now().Unix()))
 		filename := config.Config.ClipsPath + "/" + timestamp + "-" + strconv.Itoa(int(key)) + "-" + username + ".wav"
 
-		cmd := exec.Command("ffmpeg", "-f", "s16le", "-ar", strconv.Itoa(sampleRate), "-ac", strconv.Itoa(channels), "-i", "pipe:0", filename)
+		out, err := os.Create(filename)
+		if err != nil {
+			log.Error(err)
+			continue
+		}
+
+		// 8 kHz, 16 bit, 2 channel, WAV.
+		e := wav.NewEncoder(out, sampleRate, 16, channels, 1)
 
 		output := new(bytes.Buffer)
 
 		binary.Write(output, binary.LittleEndian, pcmData)
-		cmd.Stdin = bytes.NewReader(output.Bytes())
+		newReader := bytes.NewReader(output.Bytes())
 
-		err := cmd.Run()
+		// Create new audio.IntBuffer.
+		audioBuf, err := newAudioIntBuffer(newReader)
 
-		if err != nil {
+		// Write buffer to output file. This writes a RIFF header and the PCM chunks from the audio.IntBuffer.
+		if err := e.Write(audioBuf); err != nil {
+			log.Error(err)
+			out.Close()
+			continue
+		}
+		if err := e.Close(); err != nil {
 			log.Error(err)
 		}
+
+		out.Close()
+	}
+}
+
+func newAudioIntBuffer(r io.Reader) (*audio.IntBuffer, error) {
+	buf := &audio.IntBuffer{
+		Format: &audio.Format{
+			NumChannels: 1,
+			SampleRate:  8000,
+		},
+	}
+	for {
+		var sample int16
+		err := binary.Read(r, binary.LittleEndian, &sample)
+		switch {
+		case err == io.EOF:
+			return buf, nil
+		case err != nil:
+			return nil, err
+		}
+		buf.Data = append(buf.Data, int(sample))
 	}
 }