go-gemini/examples/client/client.go
2020-09-25 23:18:14 -04:00

87 lines
1.8 KiB
Go

// +build example
package main
import (
"bufio"
"crypto/tls"
"crypto/x509"
"fmt"
"log"
"os"
"git.sr.ht/~adnano/go-gemini"
)
var (
client = &gemini.Client{
TrustCertificate: func(cert *x509.Certificate, knownHosts *gemini.KnownHosts) bool {
// Trust all certificates
return true
},
}
cert tls.Certificate
)
func init() {
// Configure a client side certificate.
// To generate a certificate, run:
//
// openssl genrsa -out client.key 2048
// openssl ecparam -genkey -name secp384r1 -out client.key
// openssl req -new -x509 -sha512 -key client.key -out client.crt -days 365
//
var err error
cert, err = tls.LoadX509KeyPair("examples/client/client.crt", "examples/client/client.key")
if err != nil {
log.Fatal(err)
}
}
func makeRequest(url string) {
req, err := gemini.NewRequest(url)
if err != nil {
log.Fatal(err)
}
req.Certificate = cert
resp, err := client.Send(req)
if err != nil {
log.Fatal(err)
}
fmt.Println("Status code:", resp.Status)
fmt.Println("Meta:", resp.Meta)
switch resp.Status / 10 {
case gemini.StatusClassInput:
scanner := bufio.NewScanner(os.Stdin)
fmt.Printf("%s: ", resp.Meta)
scanner.Scan()
query := scanner.Text()
makeRequest(url + "?" + query)
return
case gemini.StatusClassSuccess:
fmt.Print("Body:\n", string(resp.Body))
case gemini.StatusClassRedirect:
log.Print("Redirecting to ", resp.Meta)
makeRequest(resp.Meta)
return
case gemini.StatusClassTemporaryFailure:
log.Fatal("Temporary failure")
case gemini.StatusClassPermanentFailure:
log.Fatal("Permanent failure")
case gemini.StatusClassClientCertificateRequired:
log.Fatal("Client certificate required")
default:
log.Fatal("Protocol error")
}
}
func main() {
if len(os.Args) < 2 {
log.Fatalf("usage: %s gemini://...", os.Args[0])
}
makeRequest(os.Args[1])
}