swirl/main.go
2024-03-17 16:37:52 -05:00

78 lines
1.8 KiB
Go

package main
import (
"fmt"
"flag"
"io/ioutil"
"net/http"
)
func main() {
// Define flags
urlPtr := flag.String("url", "", "URL of the page to fetch (required)")
methodPtr := flag.String("X", "GET", "HTTP method for the request (default: GET)")
outputPtr := flag.String("o", "", "Output file path (default: print to console)")
followRedirectsPtr := flag.Bool("L", false, "Follow HTTP redirects (default: false)")
flag.Parse()
// Check for required flag (-url)
if *urlPtr == "" {
fmt.Println("Error: -url flag is required")
flag.PrintDefaults()
return
}
// Create an HTTP client
client := &http.Client{
CheckRedirect: func(req *http.Request, via []*http.Request) error {
if *followRedirectsPtr { // Use the boolean variable
return nil
}
return fmt.Errorf("too many redirects") // Or another error
},
}
// Create a new request
req, err := http.NewRequest(*methodPtr, *urlPtr, nil)
if err != nil {
fmt.Println("Error creating request:", err)
return
}
// Send the request and get the response
resp, err := client.Do(req)
if err != nil {
fmt.Println("Error fetching content:", err)
return
}
defer resp.Body.Close() // Ensure body is closed
// Check for successful response
if resp.StatusCode != http.StatusOK {
fmt.Println("Error:", resp.StatusCode)
return
}
// Read the response body
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
fmt.Println("Error reading response body:", err)
return
}
// Handle output
if *outputPtr != "" {
// Write content to file
err = ioutil.WriteFile(*outputPtr, body, 0644)
if err != nil {
fmt.Println("Error writing to file:", err)
return
}
fmt.Println("Content saved to:", *outputPtr)
} else {
// Print content to console
fmt.Println(string(body))
}
}