fscan/Core/Scanner.go

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package Core
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import (
"fmt"
"github.com/schollz/progressbar/v3"
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"github.com/shadow1ng/fscan/Common"
"github.com/shadow1ng/fscan/WebScan/lib"
"sort"
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"strconv"
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"strings"
"sync"
"sync/atomic"
"time"
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)
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// 定义在文件开头
var (
LocalScan bool // 本地扫描模式标识
WebScan bool // Web扫描模式标识
)
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// Scan 执行扫描主流程
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func Scan(info Common.HostInfo) {
Common.LogInfo("开始信息扫描")
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// 初始化HTTP客户端
lib.Inithttp()
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ch := make(chan struct{}, Common.ThreadNum)
wg := sync.WaitGroup{}
// 根据不同模式执行扫描
switch {
case Common.LocalMode:
// 本地信息收集模式
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LocalScan = true
// 定义本地模式允许的插件
validLocalPlugins := make(map[string]bool)
for _, plugin := range Common.PluginGroups[Common.ModeLocal] {
validLocalPlugins[plugin] = true
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}
// 如果没有指定扫描模式或为默认的All设置为 ModeLocal
if Common.ScanMode == "" || Common.ScanMode == "All" {
Common.ScanMode = Common.ModeLocal
} else if Common.ScanMode != Common.ModeLocal {
// 不是完整模式时,检查是否是合法的单插件
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if !validLocalPlugins[Common.ScanMode] {
Common.LogError(fmt.Sprintf("无效的本地模式插件: %s, 仅支持 localinfo", Common.ScanMode))
return
}
}
if Common.ScanMode == Common.ModeLocal {
Common.LogInfo("执行本地信息收集 - 使用全部本地插件")
} else {
Common.LogInfo(fmt.Sprintf("执行本地信息收集 - 使用插件: %s", Common.ScanMode))
}
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executeScans([]Common.HostInfo{info}, &ch, &wg)
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case len(Common.URLs) > 0:
// Web模式
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WebScan = true
// 从 pluginGroups 获取Web模式允许的插件
validWebPlugins := make(map[string]bool)
for _, plugin := range Common.PluginGroups[Common.ModeWeb] {
validWebPlugins[plugin] = true
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}
// 如果没有指定扫描模式,默认设置为 ModeWeb
if Common.ScanMode == "" || Common.ScanMode == "All" {
Common.ScanMode = Common.ModeWeb
}
// 如果不是 ModeWeb检查是否是合法的单插件
if Common.ScanMode != Common.ModeWeb {
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if !validWebPlugins[Common.ScanMode] {
Common.LogError(fmt.Sprintf("无效的Web插件: %s, 仅支持 webtitle 和 webpoc", Common.ScanMode))
return
}
// ScanMode 保持为单插件名
}
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var targetInfos []Common.HostInfo
for _, url := range Common.URLs {
urlInfo := info
if !strings.HasPrefix(url, "http://") && !strings.HasPrefix(url, "https://") {
url = "http://" + url
}
urlInfo.Url = url
targetInfos = append(targetInfos, urlInfo)
}
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if Common.ScanMode == Common.ModeWeb {
Common.LogInfo("开始Web扫描 - 使用全部Web插件")
} else {
Common.LogInfo(fmt.Sprintf("开始Web扫描 - 使用插件: %s", Common.ScanMode))
}
executeScans(targetInfos, &ch, &wg)
default:
// 主机扫描模式
if info.Host == "" {
Common.LogError("未指定扫描目标")
return
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}
hosts, err := Common.ParseIP(info.Host, Common.HostsFile, Common.ExcludeHosts)
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if err != nil {
Common.LogError(fmt.Sprintf("解析主机错误: %v", err))
return
}
Common.LogInfo("开始主机扫描")
executeScan(hosts, info, &ch, &wg)
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}
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finishScan(&wg)
}
// executeScan 执行主扫描流程
func executeScan(hosts []string, info Common.HostInfo, ch *chan struct{}, wg *sync.WaitGroup) {
var targetInfos []Common.HostInfo
if len(hosts) > 0 || len(Common.HostPort) > 0 {
if (Common.DisablePing == false && len(hosts) > 1) || Common.IsICMPScan() {
hosts = CheckLive(hosts, Common.UsePing)
Common.LogInfo(fmt.Sprintf("存活主机数量: %d", len(hosts)))
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if Common.IsICMPScan() {
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return
}
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}
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var alivePorts []string
if Common.IsWebScan() {
alivePorts = NoPortScan(hosts, Common.Ports)
} else if len(hosts) > 0 {
alivePorts = PortScan(hosts, Common.Ports, Common.Timeout)
Common.LogInfo(fmt.Sprintf("存活端口数量: %d", len(alivePorts)))
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if Common.IsPortScan() {
return
}
}
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if len(Common.HostPort) > 0 {
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alivePorts = append(alivePorts, Common.HostPort...)
alivePorts = Common.RemoveDuplicate(alivePorts)
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Common.HostPort = nil
Common.LogInfo(fmt.Sprintf("存活端口数量: %d", len(alivePorts)))
}
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targetInfos = prepareTargetInfos(alivePorts, info)
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}
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for _, url := range Common.URLs {
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urlInfo := info
urlInfo.Url = url
targetInfos = append(targetInfos, urlInfo)
}
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if len(targetInfos) > 0 {
Common.LogInfo("开始漏洞扫描")
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executeScans(targetInfos, ch, wg)
}
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}
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// prepareTargetInfos 准备扫描目标信息
func prepareTargetInfos(alivePorts []string, baseInfo Common.HostInfo) []Common.HostInfo {
var infos []Common.HostInfo
for _, targetIP := range alivePorts {
hostParts := strings.Split(targetIP, ":")
if len(hostParts) != 2 {
Common.LogError(fmt.Sprintf("无效的目标地址格式: %s", targetIP))
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continue
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}
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info := baseInfo
info.Host = hostParts[0]
info.Ports = hostParts[1]
infos = append(infos, info)
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}
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return infos
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}
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func executeScans(targets []Common.HostInfo, ch *chan struct{}, wg *sync.WaitGroup) {
mode := Common.GetScanMode()
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var pluginsToRun []string
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isSinglePlugin := false
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if plugins := Common.GetPluginsForMode(mode); plugins != nil {
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pluginsToRun = plugins
} else {
pluginsToRun = []string{mode}
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isSinglePlugin = true
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}
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loadedPlugins := make([]string, 0)
actualTasks := 0
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type ScanTask struct {
pluginName string
target Common.HostInfo
}
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tasks := make([]ScanTask, 0)
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// 第一次遍历:计算任务数和收集要执行的插件
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for _, target := range targets {
targetPort, _ := strconv.Atoi(target.Ports)
for _, pluginName := range pluginsToRun {
plugin, exists := Common.PluginManager[pluginName]
if !exists {
continue
}
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// Web模式特殊处理
if WebScan {
actualTasks++
loadedPlugins = append(loadedPlugins, pluginName)
tasks = append(tasks, ScanTask{
pluginName: pluginName,
target: target,
})
continue
}
// 本地扫描模式
if LocalScan {
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if len(plugin.Ports) == 0 {
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actualTasks++
loadedPlugins = append(loadedPlugins, pluginName)
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tasks = append(tasks, ScanTask{
pluginName: pluginName,
target: target,
})
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}
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continue
}
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// 单插件模式
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if isSinglePlugin {
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actualTasks++
loadedPlugins = append(loadedPlugins, pluginName)
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tasks = append(tasks, ScanTask{
pluginName: pluginName,
target: target,
})
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continue
}
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// 常规模式
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if len(plugin.Ports) > 0 {
if plugin.HasPort(targetPort) {
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actualTasks++
loadedPlugins = append(loadedPlugins, pluginName)
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tasks = append(tasks, ScanTask{
pluginName: pluginName,
target: target,
})
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}
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} else {
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actualTasks++
loadedPlugins = append(loadedPlugins, pluginName)
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tasks = append(tasks, ScanTask{
pluginName: pluginName,
target: target,
})
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}
}
}
// 去重并输出实际加载的插件
uniquePlugins := make(map[string]struct{})
for _, p := range loadedPlugins {
uniquePlugins[p] = struct{}{}
}
finalPlugins := make([]string, 0, len(uniquePlugins))
for p := range uniquePlugins {
finalPlugins = append(finalPlugins, p)
}
sort.Strings(finalPlugins)
Common.LogInfo(fmt.Sprintf("加载的插件: %s", strings.Join(finalPlugins, ", ")))
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// 初始化进度条
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if Common.ShowProgress {
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Common.ProgressBar = progressbar.NewOptions(actualTasks,
progressbar.OptionEnableColorCodes(true),
progressbar.OptionShowCount(),
progressbar.OptionSetWidth(15),
progressbar.OptionSetDescription("[cyan]扫描进度:[reset]"),
progressbar.OptionSetTheme(progressbar.Theme{
Saucer: "[green]=[reset]",
SaucerHead: "[green]>[reset]",
SaucerPadding: " ",
BarStart: "[",
BarEnd: "]",
}),
progressbar.OptionThrottle(65*time.Millisecond),
progressbar.OptionUseANSICodes(true),
progressbar.OptionSetRenderBlankState(true),
)
}
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// 执行收集的任务
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for _, task := range tasks {
AddScan(task.pluginName, task.target, ch, wg)
}
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}
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// finishScan 完成扫描任务
func finishScan(wg *sync.WaitGroup) {
wg.Wait()
// 确保进度条完成,只在存在进度条时调用
if Common.ProgressBar != nil {
Common.ProgressBar.Finish()
fmt.Println() // 添加一个换行
}
Common.LogSuccess(fmt.Sprintf("扫描已完成: %v/%v", Common.End, Common.Num))
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}
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// Mutex用于保护共享资源的并发访问
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var Mutex = &sync.Mutex{}
// AddScan
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func AddScan(plugin string, info Common.HostInfo, ch *chan struct{}, wg *sync.WaitGroup) {
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*ch <- struct{}{}
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wg.Add(1)
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go func() {
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defer func() {
wg.Done()
<-*ch
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}()
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Mutex.Lock()
atomic.AddInt64(&Common.Num, 1)
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Mutex.Unlock()
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ScanFunc(&plugin, &info)
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Common.OutputMutex.Lock()
atomic.AddInt64(&Common.End, 1)
if Common.ProgressBar != nil {
// 清除当前行
fmt.Print("\033[2K\r")
Common.ProgressBar.Add(1)
}
Common.OutputMutex.Unlock()
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}()
}
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// ScanFunc 执行扫描插件
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func ScanFunc(name *string, info *Common.HostInfo) {
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defer func() {
if err := recover(); err != nil {
Common.LogError(fmt.Sprintf("扫描错误 %v:%v - %v", info.Host, info.Ports, err))
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}
}()
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plugin, exists := Common.PluginManager[*name]
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if !exists {
Common.LogInfo(fmt.Sprintf("扫描类型 %v 无对应插件,已跳过", *name))
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return
}
if err := plugin.ScanFunc(info); err != nil {
Common.LogError(fmt.Sprintf("扫描错误 %v:%v - %v", info.Host, info.Ports, err))
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}
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}
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// IsContain 检查切片中是否包含指定元素
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func IsContain(items []string, item string) bool {
for _, eachItem := range items {
if eachItem == item {
return true
}
}
return false
}