initial commit

.dockerignore

@@ -0,0 +1,3 @@
+.github
+.git
+.idea

.github/dependabot.yml

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+version: 2
+updates:
+  - package-ecosystem: "gomod"
+    directory: "/"
+    schedule:
+      interval: "daily"

.github/workflows/ci.yml

@@ -0,0 +1,59 @@
+---
+name: CI
+
+# Controls when the workflow will run
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+permissions:
+  contents: read
+jobs:
+  golangci-lint:
+    permissions:
+      contents: read
+      pull-requests: read
+    runs-on: ubuntu-latest
+    steps:
+      # Get the repositery's code
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Set up Golang
+        uses: actions/setup-go@v3
+        with:
+          go-version: '1.20.x'
+          check-latest: true
+          cache: true
+
+      - name: Run golangci-lint
+        uses: golangci/[email protected]
+        with:
+          version: latest
+          args: --verbose
+  test:
+    strategy:
+      fail-fast: false
+      matrix:
+        platform:
+          - ubuntu
+        go:
+          - 20
+    name: 'tests on ${{ matrix.platform }} | 1.${{ matrix.go }}.x'
+    runs-on: ${{ matrix.platform }}-latest
+    steps:
+      # Get the repositery's code
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Set up Golang
+        uses: actions/setup-go@v3
+        with:
+          go-version: '1.${{ matrix.go }}.x'
+          cache: true
+
+      - name: Run tests
+        run: go clean -testcache && go test -race -cover -covermode=atomic ./...

.gitignore

@@ -0,0 +1,17 @@
+.idea
+
+# Binaries for programs and plugins
+*.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+
+# Test binary, built with `go test -c`
+*.test
+
+# Output of the go coverage tool, specifically when used with LiteIDE
+*.out
+
+# Dependency directories (remove the comment below to include it)
+# vendor/

Dockerfile

@@ -0,0 +1,13 @@
+FROM golang:1.20.7 as build
+
+WORKDIR /go/src/app
+COPY . .
+
+RUN go mod download
+RUN CGO_ENABLED=0 go build -o /go/bin/dns-gateway ./cmd/dns-gateway
+
+FROM debian:bookworm-slim
+
+COPY --from=build /go/bin/dns-gateway /usr/sbin/dns-gateway
+
+ENTRYPOINT ["/usr/sbin/dns-gateway"]

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2022 Andrew Krasichkov
+
+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.

cmd/dns-gateway/.gitignore

@@ -0,0 +1 @@
+gateway

cmd/dns-gateway/main.go

@@ -0,0 +1,17 @@
+package main
+
+import (
+	"fmt"
+	"os"
+
+	_ "go.uber.org/automaxprocs"
+
+	"github.com/buglloc/DNSGateway/internal/commands"
+)
+
+func main() {
+	if err := commands.Execute(); err != nil {
+		_, _ = fmt.Fprintf(os.Stderr, "%v\n", err)
+		os.Exit(1)
+	}
+}

example/config.yaml

@@ -0,0 +1,16 @@
+listener:
+  kind: rfc2136
+  rfc2136:
+    addr: :5454
+    clients:
+      - name: tst.
+        secret: NzBjOTU4OTVlOTZlOTg5OGQwYTUxYTdjNWYzNTI3NzA5YjIyZTIxNWVjOTc3NWMxNzIxZjdjN2ExNjliNDc1ZCAgLQo=
+        zones:
+          test.lala.
+upstream:
+  kind: adguard
+  adguard:
+    api_server_url: https://g.buglloc.cc
+    login: buglloc
+    password: kek-cheburek
+    auto_ptr: true

go.mod

@@ -0,0 +1,46 @@
+module github.com/buglloc/DNSGateway
+
+go 1.20
+
+require (
+	github.com/buglloc/certifi v0.9.1
+	github.com/go-resty/resty/v2 v2.7.0
+	github.com/knadh/koanf/parsers/yaml v0.1.0
+	github.com/knadh/koanf/providers/env v0.1.0
+	github.com/knadh/koanf/providers/file v0.1.0
+	github.com/knadh/koanf/v2 v2.0.1
+	github.com/labstack/echo/v4 v4.11.1
+	github.com/miekg/dns v1.1.55
+	github.com/rs/zerolog v1.30.0
+	github.com/spf13/cobra v1.7.0
+	github.com/stretchr/testify v1.8.4
+	go.uber.org/automaxprocs v1.5.3
+	golang.org/x/sync v0.3.0
+)
+
+require (
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/fsnotify/fsnotify v1.6.0 // indirect
+	github.com/inconshreveable/mousetrap v1.1.0 // indirect
+	github.com/knadh/koanf/maps v0.1.1 // indirect
+	github.com/kr/text v0.2.0 // indirect
+	github.com/labstack/gommon v0.4.0 // indirect
+	github.com/mattn/go-colorable v0.1.13 // indirect
+	github.com/mattn/go-isatty v0.0.19 // indirect
+	github.com/mitchellh/copystructure v1.2.0 // indirect
+	github.com/mitchellh/mapstructure v1.5.0 // indirect
+	github.com/mitchellh/reflectwalk v1.0.2 // indirect
+	github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/spf13/pflag v1.0.5 // indirect
+	github.com/valyala/bytebufferpool v1.0.0 // indirect
+	github.com/valyala/fasttemplate v1.2.2 // indirect
+	golang.org/x/crypto v0.11.0 // indirect
+	golang.org/x/mod v0.12.0 // indirect
+	golang.org/x/net v0.12.0 // indirect
+	golang.org/x/sys v0.10.0 // indirect
+	golang.org/x/text v0.11.0 // indirect
+	golang.org/x/tools v0.11.0 // indirect
+	gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+)

go.sum

@@ -0,0 +1,107 @@
+github.com/buglloc/certifi v0.9.1 h1:Xgeg9xlCWCSLNYSx0moU7mB++RRrRFFdtmvqlRHRqms=
+github.com/buglloc/certifi v0.9.1/go.mod h1:gfBmljk3gl0dTYtpx18dLMjx8fXutictjX9RWyBcQT0=
+github.com/coreos/go-systemd/v22 v22.5.0/go.mod h1:Y58oyj3AT4RCenI/lSvhwexgC+NSVTIJ3seZv2GcEnc=
+github.com/cpuguy83/go-md2man/v2 v2.0.2/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
+github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/fsnotify/fsnotify v1.6.0 h1:n+5WquG0fcWoWp6xPWfHdbskMCQaFnG6PfBrh1Ky4HY=
+github.com/fsnotify/fsnotify v1.6.0/go.mod h1:sl3t1tCWJFWoRz9R8WJCbQihKKwmorjAbSClcnxKAGw=
+github.com/go-resty/resty/v2 v2.7.0 h1:me+K9p3uhSmXtrBZ4k9jcEAfJmuC8IivWHwaLZwPrFY=
+github.com/go-resty/resty/v2 v2.7.0/go.mod h1:9PWDzw47qPphMRFfhsyk0NnSgvluHcljSMVIq3w7q0I=
+github.com/godbus/dbus/v5 v5.0.4/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
+github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8=
+github.com/inconshreveable/mousetrap v1.1.0/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
+github.com/knadh/koanf/maps v0.1.1 h1:G5TjmUh2D7G2YWf5SQQqSiHRJEjaicvU0KpypqB3NIs=
+github.com/knadh/koanf/maps v0.1.1/go.mod h1:npD/QZY3V6ghQDdcQzl1W4ICNVTkohC8E73eI2xW4yI=
+github.com/knadh/koanf/parsers/yaml v0.1.0 h1:ZZ8/iGfRLvKSaMEECEBPM1HQslrZADk8fP1XFUxVI5w=
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internal/commands/root.go

@@ -0,0 +1,57 @@
+package commands
+
+import (
+	"fmt"
+	"log"
+	"os"
+
+	"github.com/rs/zerolog"
+	"github.com/spf13/cobra"
+
+	"github.com/buglloc/DNSGateway/internal/config"
+)
+
+var rootArgs struct {
+	Configs []string
+}
+
+var cfg *config.Config
+
+var rootCmd = &cobra.Command{
+	Use:           "gateway",
+	SilenceUsage:  true,
+	SilenceErrors: true,
+	Short:         `Dynamic DNS gateway for AdGuardHome`,
+}
+
+func init() {
+	cobra.OnInitialize(
+		initConfig,
+		initLogger,
+	)
+
+	flags := rootCmd.PersistentFlags()
+	flags.StringSliceVar(&rootArgs.Configs, "config", nil, "config file")
+
+	rootCmd.AddCommand(
+		startCmd,
+	)
+}
+
+func Execute() error {
+	return rootCmd.Execute()
+}
+
+func initConfig() {
+	var err error
+	cfg, err = config.LoadConfig(rootArgs.Configs...)
+	if err != nil {
+		_, _ = fmt.Fprintf(os.Stderr, "unable to load config: %v\n", err)
+		os.Exit(1)
+	}
+}
+
+func initLogger() {
+	log.SetOutput(os.Stderr)
+	zerolog.SetGlobalLevel(zerolog.InfoLevel)
+}