Add integration tests

.github/workflows/integration-test.yaml

@@ -0,0 +1,32 @@
+name: Integration Test
+
+on:
+    workflow_dispatch:
+    push:
+        branches:
+        - '*'
+
+jobs:
+  integration-test:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v4
+
+    - name: Set up Go
+      uses: actions/setup-go@v5
+      with:
+        go-version-file: "go.mod"
+
+    - name: Run integration tests
+      run: |
+        cd integration
+        make test
+
+    - name: Upload test logs
+      if: failure()
+      uses: actions/upload-artifact@v4
+      with:
+        name: test-logs
+        path: integration/test-output.log

integration/Makefile

@@ -0,0 +1,14 @@
+.PHONY: test
+test:
+	# Start the containers
+	docker compose up -d --build
+	sleep 3
+
+	# Run the tests
+	bash -c "set -o pipefail; go test -v ./integration_test.go | tee /dev/stderr"; test_exit_code=$$?
+
+	# Stop the containers
+	docker compose down --volumes --remove-orphans
+
+	# Exit with the test exit code
+	exit $$test_exit_code

integration/docker-compose.yml

@@ -0,0 +1,25 @@
+version: '3.8'
+
+services:
+  obfuscating-proxy:
+    build:
+      context: ./../
+      dockerfile: ./docker/Dockerfile
+    command: ["obfsproxy", "-l", "0.0.0.0:8080", "-t", "deobfuscating-proxy:8081"]
+    ports:
+      - "8080:8080"
+
+  deobfuscating-proxy:
+    build:
+      context: ./../
+      dockerfile: ./docker/Dockerfile
+    command: ["obfsproxy", "-l", "0.0.0.0:8081", "-t", "mock-server:80"]
+    ports:
+      - "8081:8081"
+
+  mock-server:
+    image: nginx:alpine
+    volumes:
+      - ./mock-server.conf:/etc/nginx/conf.d/default.conf
+    ports:
+      - "8000:80"

integration/go.mod

@@ -0,0 +1,38 @@
+module github.com/shalteor/obfsproxy/integration
+
+go 1.23.2
+
+require (
+	github.com/docker/docker v27.3.1+incompatible
+	github.com/stretchr/testify v1.9.0
+)
+
+require (
+	github.com/Microsoft/go-winio v0.4.14 // indirect
+	github.com/containerd/log v0.1.0 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/distribution/reference v0.6.0 // indirect
+	github.com/docker/go-connections v0.5.0 // indirect
+	github.com/docker/go-units v0.5.0 // indirect
+	github.com/felixge/httpsnoop v1.0.4 // indirect
+	github.com/go-logr/logr v1.4.2 // indirect
+	github.com/go-logr/stdr v1.2.2 // indirect
+	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/moby/docker-image-spec v1.3.1 // indirect
+	github.com/moby/term v0.5.0 // indirect
+	github.com/morikuni/aec v1.0.0 // indirect
+	github.com/opencontainers/go-digest v1.0.0 // indirect
+	github.com/opencontainers/image-spec v1.1.0 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.56.0 // indirect
+	go.opentelemetry.io/otel v1.31.0 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.31.0 // indirect
+	go.opentelemetry.io/otel/metric v1.31.0 // indirect
+	go.opentelemetry.io/otel/sdk v1.31.0 // indirect
+	go.opentelemetry.io/otel/trace v1.31.0 // indirect
+	golang.org/x/sys v0.26.0 // indirect
+	golang.org/x/time v0.7.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+	gotest.tools/v3 v3.5.1 // indirect
+)

integration/go.sum

@@ -0,0 +1,125 @@
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+golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+google.golang.org/genproto/googleapis/api v0.0.0-20241007155032-5fefd90f89a9 h1:T6rh4haD3GVYsgEfWExoCZA2o2FmbNyKpTuAxbEFPTg=
+google.golang.org/genproto/googleapis/api v0.0.0-20241007155032-5fefd90f89a9/go.mod h1:wp2WsuBYj6j8wUdo3ToZsdxxixbvQNAHqVJrTgi5E5M=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20241007155032-5fefd90f89a9 h1:QCqS/PdaHTSWGvupk2F/ehwHtGc0/GYkT+3GAcR1CCc=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20241007155032-5fefd90f89a9/go.mod h1:GX3210XPVPUjJbTUbvwI8f2IpZDMZuPJWDzDuebbviI=
+google.golang.org/grpc v1.67.1 h1:zWnc1Vrcno+lHZCOofnIMvycFcc0QRGIzm9dhnDX68E=
+google.golang.org/grpc v1.67.1/go.mod h1:1gLDyUQU7CTLJI90u3nXZ9ekeghjeM7pTDZlqFNg2AA=
+google.golang.org/protobuf v1.35.1 h1:m3LfL6/Ca+fqnjnlqQXNpFPABW1UD7mjh8KO2mKFytA=
+google.golang.org/protobuf v1.35.1/go.mod h1:9fA7Ob0pmnwhb644+1+CVWFRbNajQ6iRojtC/QF5bRE=
+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=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gotest.tools/v3 v3.5.1 h1:EENdUnS3pdur5nybKYIh2Vfgc8IUNBjxDPSjtiJcOzU=
+gotest.tools/v3 v3.5.1/go.mod h1:isy3WKz7GK6uNw/sbHzfKBLvlvXwUyV06n6brMxxopU=

integration/integration_test.go

@@ -0,0 +1,28 @@
+package integration_test
+
+import (
+	"io"
+	"net/http"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestProxyIntegration(t *testing.T) {
+	directResp, err := http.Get("http://localhost:8000")
+	require.NoError(t, err)
+	defer directResp.Body.Close()
+
+	directBody, err := io.ReadAll(directResp.Body)
+	require.NoError(t, err)
+
+	proxyResp, err := http.Get("http://localhost:8080")
+	require.NoError(t, err)
+	defer proxyResp.Body.Close()
+
+	proxyBody, err := io.ReadAll(proxyResp.Body)
+	require.NoError(t, err)
+
+	assert.Equal(t, directBody, proxyBody, "Response from direct request and proxy chain should be the same")
+}

integration/mock-server.conf

@@ -0,0 +1,8 @@
+server {
+    listen 80;
+    server_name localhost;
+
+    location / {
+        return 200 'Hello, World!';
+    }
+}