Add: source code

commands/discover.go

@@ -0,0 +1,158 @@
+/* Vuls - Vulnerability Scanner
+Copyright (C) 2016  Future Architect, Inc. Japan.
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+package commands
+
+import (
+	"flag"
+	"fmt"
+	"os"
+	"strings"
+	"text/template"
+
+	"github.com/google/subcommands"
+	"golang.org/x/net/context"
+
+	"github.com/Sirupsen/logrus"
+	ps "github.com/kotakanbe/go-pingscanner"
+)
+
+// DiscoverCmd is Subcommand of host discovery mode
+type DiscoverCmd struct {
+}
+
+// Name return subcommand name
+func (*DiscoverCmd) Name() string { return "discover" }
+
+// Synopsis return synopsis
+func (*DiscoverCmd) Synopsis() string { return "Host discovery in the CIDR." }
+
+// Usage return usage
+func (*DiscoverCmd) Usage() string {
+	return `discover:
+	discover 192.168.0.0/24
+
+`
+}
+
+// SetFlags set flag
+func (p *DiscoverCmd) SetFlags(f *flag.FlagSet) {
+}
+
+// Execute execute
+func (p *DiscoverCmd) Execute(_ context.Context, f *flag.FlagSet, _ ...interface{}) subcommands.ExitStatus {
+	// validate
+	if len(f.Args()) == 0 {
+		return subcommands.ExitUsageError
+	}
+
+	for _, cidr := range f.Args() {
+		scanner := ps.PingScanner{
+			CIDR: cidr,
+			PingOptions: []string{
+				"-c1",
+				"-t1",
+			},
+			NumOfConcurrency: 100,
+		}
+		hosts, err := scanner.Scan()
+
+		if err != nil {
+			logrus.Errorf("Host Discovery failed. err: %s", err)
+			return subcommands.ExitFailure
+		}
+
+		if len(hosts) < 1 {
+			logrus.Errorf("Active hosts not found in %s.", cidr)
+			return subcommands.ExitSuccess
+		} else if err := printConfigToml(hosts); err != nil {
+			logrus.Errorf("Failed to parse template. err: %s", err)
+			return subcommands.ExitFailure
+		}
+	}
+	return subcommands.ExitSuccess
+}
+
+// Output the tmeplate of config.toml
+func printConfigToml(ips []string) (err error) {
+	const tomlTempale = `
+[slack]
+hookURL      = "https://hooks.slack.com/services/abc123/defghijklmnopqrstuvwxyz"
+channel      = "#channel-name"
+#channel      = "#{servername}"
+iconEmoji    = ":ghost:"
+authUser     = "username"
+notifyUsers  = ["@username"]
+
+[mail]
+smtpAddr      = "smtp.gmail.com"
+smtpPort      = 465
+user          = "username"
+password      = "password"
+from          = "from@address.com"
+to            = ["to@address.com"]
+cc            = ["cc@address.com"]
+subjectPrefix = "[vuls]"
+
+[default]
+#port        = "22"
+#user        = "username"
+#password    = "password"
+#keyPath     = "/home/username/.ssh/id_rsa"
+#keyPassword = "password"
+
+[servers]
+{{- $names:=  .Names}}
+{{range $i, $ip := .IPs}}
+[servers.{{index $names $i}}]
+host         = "{{$ip}}"
+#port        = "22"
+#user        = "root"
+#password    = "password"
+#keyPath     = "/home/username/.ssh/id_rsa"
+#keyPassword = "password"
+#cpeNames = [
+#  "cpe:/a:rubyonrails:ruby_on_rails:4.2.1",
+#]
+{{end}}
+
+`
+	var tpl *template.Template
+	if tpl, err = template.New("tempalte").Parse(tomlTempale); err != nil {
+		return
+	}
+
+	type activeHosts struct {
+		IPs   []string
+		Names []string
+	}
+
+	a := activeHosts{IPs: ips}
+	names := []string{}
+	for _, ip := range ips {
+		// TOML section header must not contain "."
+		name := strings.Replace(ip, ".", "-", -1)
+		names = append(names, name)
+	}
+	a.Names = names
+
+	fmt.Println("# Create config.toml using below and then ./vuls --config=/path/to/config.toml")
+	if err = tpl.Execute(os.Stdout, a); err != nil {
+		return
+	}
+	return
+}