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// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !appengine
package main
import (
"errors"
"flag"
"io"
"log"
"net/http"
"net/url"
"os"
)
func handleRemoteSearch() {
// Command-line queries.
for i := 0; i < flag.NArg(); i++ {
res, err := remoteSearch(flag.Arg(i))
if err != nil {
log.Fatalf("remoteSearch: %s", err)
}
io.Copy(os.Stdout, res.Body)
}
return
}
// remoteSearchURL returns the search URL for a given query as needed by
// remoteSearch. If html is set, an html result is requested; otherwise
// the result is in textual form.
// Adjust this function as necessary if modeNames or FormValue parameters
// change.
func remoteSearchURL(query string, html bool) string {
s := "/search?m=text&q="
if html {
s = "/search?q="
}
return s + url.QueryEscape(query)
}
func remoteSearch(query string) (res *http.Response, err error) {
// list of addresses to try
var addrs []string
if *serverAddr != "" {
// explicit server address - only try this one
addrs = []string{*serverAddr}
} else {
addrs = []string{
defaultAddr,
"golang.org",
}
}
// remote search
search := remoteSearchURL(query, *html)
for _, addr := range addrs {
url := "http://" + addr + search
res, err = http.Get(url)
if err == nil && res.StatusCode == http.StatusOK {
break
}
}
if err == nil && res.StatusCode != http.StatusOK {
err = errors.New(res.Status)
}
return
}
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