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3
.gitignore
vendored
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.gitignore
vendored
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@ -19,3 +19,6 @@
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# Go workspace file
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go.work
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# Ignore dotenv files
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.env*
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22
README.md
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22
README.md
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# Echo
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Janus allows you to setup a simple file server for local testing.
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### Requirements
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- Go (any recent version should work, native to Go 1.21)
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## Usage
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1. Clone the project
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2. Create a `.env` file
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- Add `SERVER_PORT={PORT}`
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- Add `BASE_PATH={PATH}`
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3. Run the program with `go run .`
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## Notes
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Echo is intended for localhost testing ONLY and designed as a convenient alternative to spinning up a nginx webserver for serving files quickly.
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Do not use in a production environment, as no security features are implemented.
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5
go.mod
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go.mod
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module notashelf.dev/echo
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go 1.21.4
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require github.com/joho/godotenv v1.5.1
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go.sum
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go.sum
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github.com/joho/godotenv v1.5.1 h1:7eLL/+HRGLY0ldzfGMeQkb7vMd0as4CfYvUVzLqw0N0=
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github.com/joho/godotenv v1.5.1/go.mod h1:f4LDr5Voq0i2e/R5DDNOoa2zzDfwtkZa6DnEwAbqwq4=
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main.go
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main.go
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package main
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import (
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"fmt"
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"net/http"
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"os"
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"path/filepath"
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"regexp"
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"strconv"
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"github.com/joho/godotenv"
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)
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func main() {
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err := godotenv.Load()
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if err != nil {
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fmt.Println("Error loading .env file")
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}
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serverPort := os.Getenv("SERVER_PORT")
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if serverPort == "" {
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serverPort = "8080"
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}
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basePath := os.Getenv("BASE_PATH")
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if basePath == "" {
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basePath = "."
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}
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http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
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if regexp.MustCompile(`\.\.\/?`).MatchString(r.URL.Path) {
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http.Error(w, "Forbidden", http.StatusForbidden)
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return
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}
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filePath := filepath.Join(basePath, r.URL.Path)
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http.ServeFile(w, r, filePath)
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})
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port, _ := strconv.Atoi(serverPort)
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fmt.Printf("Echo started with base path %s on port %d\n", basePath, port)
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http.ListenAndServe(":"+serverPort, nil)
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}
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