// handleSearch handles URLs like /search?q=golang&timeout=1s by forwarding the
// query to google.Search. If the query param includes timeout, the search is
// canceled after that duration elapses.
func handleSearch(w http.ResponseWriter, req *http.Request) {
// ctx is the Context for this handler. Calling cancel closes the
// ctx.Done channel, which is the cancellation signal for requests
// started by this handler.
var (
ctx context.Context
cancel context.CancelFunc
)
timeout, err := time.ParseDuration(req.FormValue("timeout"))
if err == nil {
// The request has a timeout, so create a context that is
// canceled automatically when the timeout expires.
ctx, cancel = context.WithTimeout(context.Background(), timeout)
} else {
ctx, cancel = context.WithCancel(context.Background())
}
defer cancel() // Cancel ctx as soon as handleSearch returns.
// Check the search query.
query := req.FormValue("q")
if query == "" {
http.Error(w, "no query", http.StatusBadRequest)
return
}
// Store the user IP in ctx for use by code in other packages.
userIP, err := userip.FromRequest(req)
if err != nil {
http.Error(w, err.Error(), http.StatusBadRequest)
return
}
ctx = userip.NewContext(ctx, userIP)
// Run the Google search and print the results.
start := time.Now()
results, err := google.Search(ctx, query)
elapsed := time.Since(start)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
if err := resultsTemplate.Execute(w, struct {
Results google.Results
Timeout, Elapsed time.Duration
}{
Results: results,
Timeout: timeout,
Elapsed: elapsed,
}); err != nil {
log.Print(err)
return
}
}
func googleSearch(req string, e *irc.Event) {
query := req[3:]
pretty.Println(query)
results, err := google.Search(context.Background(), query)
pretty.Println(results)
if err == nil {
limit := len(results)
if limit <= 0 {
irccon.Privmsg(channel, "Não quero")
return
}
for i := 0; i < limit; i++ {
irccon.Privmsg(channel, results[i].Title)
irccon.Privmsg(channel, results[i].URL)
}
} else {
irccon.Privmsg(channel, "Hmmmm não me apetece")
}
}