first implementation

.circleci/config.yml

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+version: 2.1
+executors:
+  default:
+    docker:
+      - image: circleci/golang:1.12-node
+
+jobs:
+  lint:
+    executor:
+      name: default
+    steps:
+      - checkout
+      - run: make check-style
+
+  test:
+    executor:
+      name: default
+    steps:
+      - checkout
+      - run: make test
+
+workflows:
+  version: 2
+  untagged-build:
+    jobs:
+      - lint
+      - test

.editorconfig

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+# http://editorconfig.org/
+
+root = true
+
+[*]
+end_of_line = lf
+insert_final_newline = true
+charset = utf-8
+trim_trailing_whitespace = true
+
+[*.go]
+indent_style = tab
+
+[*.{js,jsx,json,html}]
+indent_style = space
+indent_size = 4
+
+[webapp/package.json]
+indent_size = 2
+
+[Makefile,*.mk]
+indent_style = tab
+
+[*.md]
+indent_style = space
+indent_size = 4
+trim_trailing_whitespace = false
+

.gitignore

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+dist
+public/recorder*
+public/encoder*
+webapp/src/client/recorder.js

LICENSE

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+MIT License
+
+Copyright (c) 2019 Claudio Costa
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

Makefile

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+GO ?= $(shell command -v go 2> /dev/null)
+NPM ?= $(shell command -v npm 2> /dev/null)
+CURL ?= $(shell command -v curl 2> /dev/null)
+MANIFEST_FILE ?= plugin.json
+GOPATH ?= $(shell go env GOPATH)
+GO_TEST_FLAGS ?= -race
+GO_BUILD_FLAGS ?=
+MM_UTILITIES_DIR ?= ../mattermost-utilities
+
+export GO111MODULE=on
+
+# You can include assets this directory into the bundle. This can be e.g. used to include profile pictures.
+ASSETS_DIR ?= assets
+
+# Verify environment, and define PLUGIN_ID, PLUGIN_VERSION, HAS_SERVER and HAS_WEBAPP as needed.
+include build/setup.mk
+
+BUNDLE_NAME ?= $(PLUGIN_ID)-$(PLUGIN_VERSION).tar.gz
+
+# Include custom makefile, if pressent
+ifneq ($(wildcard build/custom.mk),)
+	include build/custom.mk
+endif
+
+## Checks the code style, tests, builds and bundles the plugin.
+all: check-style test dist
+
+## Propagates plugin manifest information into the server/ and webapp/ folders as required.
+.PHONY: apply
+apply:
+	./build/bin/manifest apply
+
+## Runs govet and gofmt against all packages.
+.PHONY: check-style
+check-style: webapp/.npminstall mp3-wasm gofmt govet golint
+	@echo Checking for style guide compliance
+
+ifneq ($(HAS_WEBAPP),)
+	cd webapp && npm run lint
+endif
+
+## Runs gofmt against all packages.
+.PHONY: gofmt
+gofmt:
+ifneq ($(HAS_SERVER),)
+	@echo Running gofmt
+	@for package in $$(go list ./...); do \
+		echo "Checking "$$package; \
+		files=$$(go list -f '{{range .GoFiles}}{{$$.Dir}}/{{.}} {{end}}' $$package); \
+		if [ "$$files" ]; then \
+			gofmt_output=$$(gofmt -d -s $$files 2>&1); \
+			if [ "$$gofmt_output" ]; then \
+				echo "$$gofmt_output"; \
+				echo "Gofmt failure"; \
+				exit 1; \
+			fi; \
+		fi; \
+	done
+	@echo Gofmt success
+endif
+
+## Runs govet against all packages.
+.PHONY: govet
+govet:
+ifneq ($(HAS_SERVER),)
+	@echo Running govet
+	@# Workaround because you can't install binaries without adding them to go.mod
+	env GO111MODULE=off $(GO) get golang.org/x/tools/go/analysis/passes/shadow/cmd/shadow
+	$(GO) vet ./...
+	$(GO) vet -vettool=$(GOPATH)/bin/shadow ./...
+	@echo Govet success
+endif
+
+## Runs golint against all packages.
+.PHONY: golint
+golint:
+	@echo Running lint
+	env GO111MODULE=off $(GO) get golang.org/x/lint/golint
+	$(GOPATH)/bin/golint -set_exit_status ./...
+	@echo lint success
+
+## Builds the server, if it exists, including support for multiple architectures.
+.PHONY: server
+server:
+ifneq ($(HAS_SERVER),)
+	mkdir -p server/dist;
+	cd server && env GOOS=linux GOARCH=amd64 $(GO) build $(GO_BUILD_FLAGS) -o dist/plugin-linux-amd64;
+	cd server && env GOOS=darwin GOARCH=amd64 $(GO) build $(GO_BUILD_FLAGS) -o dist/plugin-darwin-amd64;
+	cd server && env GOOS=windows GOARCH=amd64 $(GO) build $(GO_BUILD_FLAGS) -o dist/plugin-windows-amd64.exe;
+endif
+
+## Ensures NPM dependencies are installed without having to run this all the time.
+webapp/.npminstall:
+ifneq ($(HAS_WEBAPP),)
+	cd webapp && $(NPM) install
+	touch $@
+endif
+
+## Installs mp3-wasm dependency
+MP3WASM_VERSION="0.1.6"
+MP3WASM_FULLNAME="mp3enc-wasm-${MP3WASM_VERSION}"
+
+.PHONY: mp3-wasm
+mp3-wasm:
+	mkdir -p dist && \
+	cd dist && \
+	curl -L -o "${MP3WASM_FULLNAME}.tar.gz" -C - "https://github.com/streamer45/mp3rec-wasm/releases/download/v${MP3WASM_VERSION}/${MP3WASM_FULLNAME}.tar.gz" 2> /dev/null && \
+	cd ../public && \
+	tar xf ../dist/${MP3WASM_FULLNAME}.tar.gz 2> /dev/null && \
+	mv ${MP3WASM_FULLNAME}/* . && \
+	mv recorder.js ../webapp/src/client/ && \
+	rm -rf ${MP3WASM_FULLNAME}
+
+## Builds the webapp, if it exists.
+.PHONY: webapp
+webapp: mp3-wasm webapp/.npminstall
+ifneq ($(HAS_WEBAPP),)
+	cd webapp && $(NPM) run build;
+endif
+
+## Generates a tar bundle of the plugin for install.
+.PHONY: bundle
+bundle:
+	rm -rf dist/
+	mkdir -p dist/$(PLUGIN_ID)
+	cp $(MANIFEST_FILE) dist/$(PLUGIN_ID)/
+ifneq ($(wildcard $(ASSETS_DIR)/.),)
+	cp -r $(ASSETS_DIR) dist/$(PLUGIN_ID)/
+endif
+ifneq ($(HAS_PUBLIC),)
+	cp -r public/ dist/$(PLUGIN_ID)/
+endif
+ifneq ($(HAS_SERVER),)
+	mkdir -p dist/$(PLUGIN_ID)/server/dist;
+	cp -r server/dist/* dist/$(PLUGIN_ID)/server/dist/;
+endif
+ifneq ($(HAS_WEBAPP),)
+	mkdir -p dist/$(PLUGIN_ID)/webapp/dist;
+	cp -r webapp/dist/* dist/$(PLUGIN_ID)/webapp/dist/;
+endif
+	cd dist && tar -cvzf $(BUNDLE_NAME) $(PLUGIN_ID)
+
+	@echo plugin built at: dist/$(BUNDLE_NAME)
+
+## Builds and bundles the plugin.
+.PHONY: dist
+dist:	apply server webapp bundle
+
+## Installs the plugin to a (development) server.
+.PHONY: deploy
+deploy: dist
+## It uses the API if appropriate environment variables are defined,
+## or copying the files directly to a sibling mattermost-server directory.
+ifneq ($(and $(MM_SERVICESETTINGS_SITEURL),$(MM_ADMIN_USERNAME),$(MM_ADMIN_PASSWORD),$(CURL)),)
+	@echo "Installing plugin via API"
+	$(eval TOKEN := $(shell curl -i --post301 --location $(MM_SERVICESETTINGS_SITEURL) -X POST $(MM_SERVICESETTINGS_SITEURL)/api/v4/users/login -d '{"login_id": "$(MM_ADMIN_USERNAME)", "password": "$(MM_ADMIN_PASSWORD)"}' | grep Token | cut -f2 -d' ' 2> /dev/null))
+	@curl -s --post301 --location $(MM_SERVICESETTINGS_SITEURL) -H "Authorization: Bearer $(TOKEN)" -X POST $(MM_SERVICESETTINGS_SITEURL)/api/v4/plugins -F "plugin=@dist/$(BUNDLE_NAME)" -F "force=true" > /dev/null && \
+		curl -s --post301 --location $(MM_SERVICESETTINGS_SITEURL) -H "Authorization: Bearer $(TOKEN)" -X POST $(MM_SERVICESETTINGS_SITEURL)/api/v4/plugins/$(PLUGIN_ID)/enable > /dev/null && \
+		echo "OK." || echo "Sorry, something went wrong."
+else ifneq ($(wildcard ../mattermost-server/.*),)
+	@echo "Installing plugin via filesystem. Server restart and manual plugin enabling required"
+	mkdir -p ../mattermost-server/plugins
+	tar -C ../mattermost-server/plugins -zxvf dist/$(BUNDLE_NAME)
+else
+	@echo "No supported deployment method available. Install plugin manually."
+endif
+
+## Runs any lints and unit tests defined for the server and webapp, if they exist.
+.PHONY: test
+test: webapp/.npminstall
+ifneq ($(HAS_SERVER),)
+	$(GO) test -v $(GO_TEST_FLAGS) ./server/...
+endif
+ifneq ($(HAS_WEBAPP),)
+	cd webapp && $(NPM) run fix && $(NPM) run test;
+endif
+
+## Creates a coverage report for the server code.
+.PHONY: coverage
+coverage: webapp/.npminstall
+ifneq ($(HAS_SERVER),)
+	$(GO) test $(GO_TEST_FLAGS) -coverprofile=server/coverage.txt ./server/...
+	$(GO) tool cover -html=server/coverage.txt
+endif
+
+## Extract strings for translation from the source code.
+.PHONY: i18n-extract
+i18n-extract:
+ifneq ($(HAS_WEBAPP),)
+ifeq ($(HAS_MM_UTILITIES),)
+	@echo "You must clone github.com/mattermost/mattermost-utilities repo in .. to use this command"
+else
+	cd $(MM_UTILITIES_DIR) && npm install && npm run babel && node mmjstool/build/index.js i18n extract-webapp --webapp-dir $(PWD)/webapp
+endif
+endif
+
+## Clean removes all build artifacts.
+.PHONY: clean
+clean:
+	rm -fr dist/
+	rm -fr public/encoder.js
+	rm -fr public/encoder.wasm
+	rm -rf public/recorder.worker.js
+ifneq ($(HAS_SERVER),)
+	rm -fr server/dist
+endif
+ifneq ($(HAS_WEBAPP),)
+	rm -fr webapp/.npminstall
+	rm -fr webapp/dist
+	rm -fr webapp/node_modules
+	rm -rf webapp/src/client/recorder.js
+endif
+	rm -fr build/bin/
+
+# Help documentatin à la https://marmelab.com/blog/2016/02/29/auto-documented-makefile.html
+help:
+	@cat Makefile | grep -v '\.PHONY' |  grep -v '\help:' | grep -B1 -E '^[a-zA-Z0-9_.-]+:.*' | sed -e "s/:.*//" | sed -e "s/^## //" |  grep -v '\-\-' | sed '1!G;h;$$!d' | awk 'NR%2{printf "\033[36m%-30s\033[0m",$$0;next;}1' | sort

README.md

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+# Mattermost Voice Plugin
+
+This plugin adds support for basic voice messaging in Mattermost.
+
+![](https://i.imgur.com/hPZ3GhG.gif)
+
+## Usage
+
+To start sending a voice message you can either use the ```/voice``` slash command or the existing file attachment functionality as shown in the picture above.
+
+## Demo
+
+A demo server running the latest version of this plugin is located [here](https://mm.krad.stream/testing/channels/town-square).  
+You can login using the following details:
+
+```
+User: demo
+Password: password
+```
+
+## Building
+
+User ```make dist``` to build this plugin.
+
+## License
+
+[mattermost-plugin-voice](https://github.com/streamer45/mattermost-plugin-voice) is licensed under [MIT](LICENSE)  
+[mp3rec-wasm](https://github.com/streamer45/mp3rec-wasm) is licensed under [MIT](LICENSE)  
+[LAME](http://lame.sourceforge.net/) is licensed under [LGPL](vendor/lame/COPYING)  

build/.gitignore

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+bin

build/custom.mk

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+# Include custom targets and environment variables here