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server.go
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server.go
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package main
import (
"flag"
"log"
"net/http"
"strings"
"github.com/omriz/multigrok/backends"
"github.com/omriz/multigrok/frontend"
)
func searchPlaceholder(w http.ResponseWriter, req *http.Request) {
w.Header().Set("Content-Type", "text/plain")
w.Write([]byte("This is a place holder for search server.\n"))
}
func main() {
// Flags definitions.
backendsFlag := flag.String("backends", "http://localhost:8080/source", "Comma seperated list of backends")
httpPort := flag.Int("http_port", 80, "port to run the http web service on if avaliable")
httpsPort := flag.Int("https_port", 443, "port to run the https web service on if avaliebl")
certFile := flag.String("cert_file", "", "If using https, the path to the certificate file")
keyFile := flag.String("key_file", "", "If using https, the path to the key file")
hostName := flag.String("hostname", "", "Your hostname if using auto cert renewal")
mode := flag.String("mode", "http", "One of the following: http,https, autoCert")
cacheDir := flag.String("cache_dir", "", "cache dir for certificates")
flag.Parse()
// Validating flags
if !(*mode == "http" || *mode == "https" || *mode == "autoCert") {
log.Fatalf("mode %s is invalid. Avaliable modes are http, https and autoCert", *mode)
}
ogbs := make(map[string]backends.Backend)
for _, a := range strings.Split(*backendsFlag, ",") {
if !strings.HasSuffix(a, "/") {
a = a + "/"
}
ogb := backends.NewOpenGrokBackend(a)
ogbs[ogb.UID()] = &ogb
}
s := frontend.NewMultiGrokServer(ogbs, *httpPort, *httpsPort)
if *mode == "https" {
if *certFile == "" || *keyFile == "" {
log.Fatalf("Missing certification or key files")
}
log.Fatal(s.ListenAndServeHttps(*certFile, *keyFile))
} else if *mode == "autoCert" {
if *hostName == "" || *cacheDir == "" {
log.Fatalf("Missing host_name or cache_dir")
}
log.Fatal(s.ListenAndServeAutoCert(*hostName, *cacheDir))
} else {
log.Fatal(s.ListenAndServeHttp())
}
}