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|
package main
import (
"bufio"
"flag"
"fmt"
"gemini"
"log"
"os"
)
func usage() {
fmt.Printf("Usage: %s [options] url\n", os.Args[0])
flag.PrintDefaults()
}
func create_output(path string) (*os.File, error) {
if path == "" {
return os.Stdout, nil
}
return os.Create(path)
}
func read_requests(path string) ([]string, error) {
if path == "" {
return nil, nil
}
file, err := os.Open(path)
if err != nil {
return nil, err
}
defer file.Close()
var lines []string
scanner := bufio.NewScanner(file)
for scanner.Scan() {
lines = append(lines, scanner.Text())
}
return lines, scanner.Err()
}
func main() {
flags := struct {
host string
port int
input string
output string
}{
host: "",
port: gemini.GeminiPort,
input: "",
output: "",
}
flag.Usage = usage
flag.StringVar(&flags.host, "host", flags.host, "server host name")
flag.IntVar(&flags.port, "port", flags.port, "server port number")
flag.StringVar(&flags.input, "i", flags.input, "read urls from file")
flag.StringVar(&flags.output, "o", flags.output, "write output to path")
flag.Parse()
requests, err := read_requests(flags.input)
if err != nil {
log.Panic(err)
}
requests = append(requests, flag.Args()...)
if len(requests) == 0 {
flag.Usage()
os.Exit(1)
}
output, err := create_output(flags.output)
if err != nil {
log.Fatal(err)
}
log.Printf("Got %d requests\n", len(requests))
for _, request := range requests {
log.Println(request)
if conn, err := gemini.NewGeminiConnFromRequest(request, flags.port); err != nil {
log.Print(err)
} else if err := conn.Get(gemini.FormatRequest(request), output); err != nil {
log.Print(err)
}
}
}
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