/
processing.go
120 lines (100 loc) · 2.7 KB
/
processing.go
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/*
* ZGrab Copyright 2015 Regents of the University of Michigan
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy
* of the License at http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
* implied. See the License for the specific language governing
* permissions and limitations under the License.
*/
package zlib
import (
"encoding/json"
"github.com/zmap/zgrab/tls13measurements"
"github.com/zmap/zgrab/ztools/processing"
)
// GrabWorker implements ztools.processing.Worker
type GrabWorker struct {
success uint
failure uint
statuses chan status
config *Config
}
type status uint
const (
status_success status = iota
status_failure status = iota
)
func (g *GrabWorker) Success() uint {
return g.success
}
func (g *GrabWorker) Failure() uint {
return g.failure
}
func (g *GrabWorker) Total() uint {
return g.success + g.failure
}
func (g *GrabWorker) RunCount() uint {
return g.config.ConnectionsPerHost
}
func (g *GrabWorker) Done() {
close(g.statuses)
}
func (g *GrabWorker) MakeHandler() processing.Handler {
return func(v interface{}) interface{} {
target, ok := v.(GrabTarget)
if !ok {
return nil
}
/*
defer func() {
if r := recover(); r != nil {
g.config.ErrorLog.Errorf("Paniced while processing %s", target.Domain)
}
}()
g.config.ErrorLog.Infof("Starting %s", target.Domain)
*/
grab := GrabBanner(g.config, &target)
s := grab.status()
if g.config.TraceRoute && (s == status_failure || true) {
if grab.Data.HTTP != nil && grab.Data.HTTP.Response != nil && grab.Data.HTTP.Response.AddressUsed.IP != nil {
addr := grab.Data.HTTP.Response.AddressUsed
grab.Route = tls13measurements.TraceRoute(addr.IP)
} else if target.Addr != nil {
// we had no successful socket to the destination, use the given IP, if available
grab.Route = tls13measurements.TraceRoute(target.Addr)
}
}
g.statuses <- s
return grab
}
}
func NewGrabWorker(config *Config) processing.Worker {
w := new(GrabWorker)
w.statuses = make(chan status, config.Senders*4)
w.config = config
go func() {
for s := range w.statuses {
switch s {
case status_success:
w.success++
case status_failure:
w.failure++
default:
continue
}
}
}()
return w
}
type grabMarshaler struct{}
func (gm *grabMarshaler) Marshal(v interface{}) ([]byte, error) {
return json.Marshal(v)
}
func NewGrabMarshaler() processing.Marshaler {
return new(grabMarshaler)
}