From 6762c822ab7ec803c4e87f5f1c18a3d8c0aee87a Mon Sep 17 00:00:00 2001
From: wood chen <wood@czl.net>
Date: Tue, 29 Oct 2024 23:00:16 +0800
Subject: [PATCH] first commit

---
 .github/workflows/docker-build.yml |  84 +++++++++++++++++++++++
 Dockerfile                         |  13 ++++
 data/config.json                   |   6 ++
 main.go                            | 105 +++++++++++++++++++++++++++++
 4 files changed, 208 insertions(+)
 create mode 100644 .github/workflows/docker-build.yml
 create mode 100644 Dockerfile
 create mode 100644 data/config.json
 create mode 100644 main.go

diff --git a/.github/workflows/docker-build.yml b/.github/workflows/docker-build.yml
new file mode 100644
index 0000000..f918cfe
--- /dev/null
+++ b/.github/workflows/docker-build.yml
@@ -0,0 +1,84 @@
+name: Build and Push Docker Image
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        arch: [amd64, arm64]
+        include:
+          - arch: amd64
+            goarch: amd64
+          - arch: arm64
+            goarch: arm64
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+
+      - name: Set up Go
+        uses: actions/setup-go@v2
+        with:
+          go-version: '1.21'
+
+      - name: Build binary
+        env:
+          GOOS: linux
+          GOARCH: ${{ matrix.goarch }}
+          CGO_ENABLED: 0
+        run: |
+          go build -o proxy-go-${{ matrix.arch }}
+
+      - name: Upload binary artifact
+        uses: actions/upload-artifact@v2
+        with:
+          name: proxy-go-${{ matrix.arch }}
+          path: proxy-go-${{ matrix.arch }}
+
+  docker:
+    needs: build
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+
+      - name: Download all artifacts
+        uses: actions/download-artifact@v2
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+
+      - name: Login to Docker Hub
+        uses: docker/login-action@v1
+        with:
+          username: woodchen
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      - name: Get current date
+        id: date
+        run: echo "::set-output name=date::$(date +'%Y%m%d')"
+
+      - name: Prepare binaries
+        run: |
+          chmod +x proxy-go-*/proxy-go-*
+          mv proxy-go-amd64/proxy-go-amd64 proxy-go-amd64/proxy-go
+          mv proxy-go-arm64/proxy-go-arm64 proxy-go-arm64/proxy-go
+
+      - name: Build and push Docker images
+        uses: docker/build-push-action@v2
+        with:
+          context: .
+          platforms: linux/amd64,linux/arm64
+          push: true
+          tags: |
+            woodchen/proxy-go:latest
+            ${{ secrets.DOCKERHUB_USERNAME }}/proxy-go:${{ steps.date.outputs.date }}
+
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..523b379
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,13 @@
+FROM alpine:latest
+
+WORKDIR /app
+COPY proxy-go /app/
+RUN mkdir -p /app/data && \
+    chmod +x /app/proxy-go && \
+    apk add --no-cache ca-certificates tzdata && \
+    cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime && \
+    echo "Asia/Shanghai" > /etc/timezone
+
+EXPOSE 80
+VOLUME ["/app/data"]
+ENTRYPOINT ["/app/proxy-go"]
diff --git a/data/config.json b/data/config.json
new file mode 100644
index 0000000..eafbc7e
--- /dev/null
+++ b/data/config.json
@@ -0,0 +1,6 @@
+{
+  "MAP":{
+      "/path1": "https://path1.com/path/path/path",
+      "/path2": "https://path2.com"
+    }
+  }
\ No newline at end of file
diff --git a/main.go b/main.go
new file mode 100644
index 0000000..4b32da9
--- /dev/null
+++ b/main.go
@@ -0,0 +1,105 @@
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"io"
+	"log"
+	"net/http"
+	"os"
+	"strings"
+)
+
+// Config 结构体用于解析配置文件
+type Config struct {
+	MAP map[string]string `json:"MAP"`
+}
+
+func main() {
+	// 读取配置文件
+	configFile, err := os.ReadFile("data/config.json")
+	if err != nil {
+		log.Fatal("Error reading config file:", err)
+	}
+
+	// 解析配置文件
+	var config Config
+	if err := json.Unmarshal(configFile, &config); err != nil {
+		log.Fatal("Error parsing config file:", err)
+	}
+
+	// 创建 HTTP 处理函数
+	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
+		// 处理根路径请求
+		if r.URL.Path == "/" {
+			w.WriteHeader(http.StatusOK)
+			fmt.Fprint(w, "Welcome to CZL proxy.")
+			return
+		}
+
+		// 查找匹配的代理路径
+		var matchedPrefix string
+		var targetBase string
+		for prefix, target := range config.MAP {
+			if strings.HasPrefix(r.URL.Path, prefix) {
+				matchedPrefix = prefix
+				targetBase = target
+				break
+			}
+		}
+
+		// 如果没有匹配的路径，返回 404
+		if matchedPrefix == "" {
+			http.NotFound(w, r)
+			return
+		}
+
+		// 构建目标 URL
+		targetPath := strings.TrimPrefix(r.URL.Path, matchedPrefix)
+		targetURL := targetBase + targetPath
+
+		// 创建新的请求
+		proxyReq, err := http.NewRequest(r.Method, targetURL, r.Body)
+		if err != nil {
+			http.Error(w, "Error creating proxy request", http.StatusInternalServerError)
+			return
+		}
+
+		// 复制原始请求的 header
+		for header, values := range r.Header {
+			for _, value := range values {
+				proxyReq.Header.Add(header, value)
+			}
+		}
+
+		// 发送代理请求
+		client := &http.Client{}
+		resp, err := client.Do(proxyReq)
+		if err != nil {
+			http.Error(w, "Error forwarding request", http.StatusBadGateway)
+			return
+		}
+		defer resp.Body.Close()
+
+		// 复制响应 header
+		for header, values := range resp.Header {
+			for _, value := range values {
+				w.Header().Add(header, value)
+			}
+		}
+
+		// 设置响应状态码
+		w.WriteHeader(resp.StatusCode)
+
+		// 复制响应体
+		if _, err := io.Copy(w, resp.Body); err != nil {
+			log.Printf("Error copying response: %v", err)
+		}
+	})
+
+	// 启动服务器
+	log.Println("Starting proxy server on :80")
+	if err := http.ListenAndServe(":80", nil); err != nil {
+		log.Fatal("Error starting server:", err)
+	}
+}