mirror of
https://github.com/shadow1ng/fscan.git
synced 2026-09-22 03:10:42 +08:00
586 lines
16 KiB
Go
586 lines
16 KiB
Go
package core
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import (
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"context"
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"fmt"
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"sync"
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"testing"
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"time"
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"github.com/shadow1ng/fscan/common"
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"github.com/shadow1ng/fscan/plugins"
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)
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/*
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scanner_test.go - Scanner核心逻辑测试
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注意：scanner.go 包含大量副作用（HTTP初始化、信号处理、并发控制）。
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本测试文件专注于可测试的纯逻辑和算法正确性：
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1. 策略选择逻辑（selectStrategy） - 测试4种扫描模式的优先级
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2. 端口解析逻辑（parsePort） - 测试端口范围验证（1-65535）
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3. 任务计数逻辑验证（countApplicableTasks） - 使用mock策略测试
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测试发现并修复的Bug:
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- Bug #1: strconv.Atoi接受负数端口（如 "-80" 被解析为 -80）✅ 已修复
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- Bug #2: strconv.Atoi不验证端口范围（如 "99999" 被解析为 99999，超出65535）✅ 已修复
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修复方案：
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在scanner.go中添加了 parsePort() 辅助函数，验证端口范围 (1-65535)。
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非法端口会被记录到日志并返回0，避免传递给插件系统导致未定义行为。
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"这代码需要依赖注入，不是测试。但既然现在无法重构，
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我们至少验证策略选择和任务计数的逻辑是对的。
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更重要的是，测试发现了两个真实的bug，并且都修复了。"
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*/
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// =============================================================================
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// 核心逻辑测试：策略选择
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// =============================================================================
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func TestWebResultSerializerPreservesDetectedProtocol(t *testing.T) {
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serializer := resultSerializers[plugins.ResultTypeWeb]
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details := map[string]interface{}{}
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result := &plugins.Result{
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Type: plugins.ResultTypeWeb,
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Success: true,
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Output: "https://192.168.1.1:8443",
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}
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info := &common.HostInfo{Host: "192.168.1.1", Port: 8443}
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serializer.fillDetail(result, info, details)
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if details["protocol"] != "https" {
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t.Fatalf("protocol = %v, 期望 https", details["protocol"])
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}
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if details["url"] != "https://192.168.1.1:8443" {
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t.Fatalf("url = %v, 期望检测出的URL", details["url"])
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}
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}
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// TestSelectStrategy 测试策略选择逻辑
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func TestSelectStrategy(t *testing.T) {
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// 保存原始配置
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cfg := common.GetGlobalConfig()
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state := common.GetGlobalState()
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origAliveOnly := cfg.AliveOnly
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origMode := cfg.Mode
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origLocalMode := cfg.LocalMode
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origURLs := state.GetURLs()
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defer func() {
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cfg.AliveOnly = origAliveOnly
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cfg.Mode = origMode
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cfg.LocalMode = origLocalMode
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state.SetURLs(origURLs)
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}()
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tests := []struct {
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name string
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setupConfig func()
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expectedType string
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info common.HostInfo
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}{
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{
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name: "存活检测模式-AliveOnly优先级最高",
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setupConfig: func() {
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cfg.AliveOnly = true
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cfg.Mode = ""
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cfg.LocalMode = false
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state.SetURLs(nil)
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},
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expectedType: "*core.AliveScanStrategy",
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info: common.HostInfo{Host: "192.168.1.1"},
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},
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{
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name: "存活检测模式-ScanMode=icmp",
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setupConfig: func() {
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cfg.AliveOnly = false
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cfg.Mode = "icmp"
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cfg.LocalMode = false
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state.SetURLs(nil)
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},
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expectedType: "*core.AliveScanStrategy",
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info: common.HostInfo{Host: "192.168.1.1"},
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},
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{
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name: "本地模式-LocalMode",
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setupConfig: func() {
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cfg.AliveOnly = false
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cfg.Mode = ""
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cfg.LocalMode = true
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state.SetURLs(nil)
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},
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expectedType: "*core.LocalScanStrategy",
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info: common.HostInfo{Host: "localhost"},
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},
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{
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name: "Web扫描模式-URLs非空",
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setupConfig: func() {
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cfg.AliveOnly = false
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cfg.Mode = ""
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cfg.LocalMode = false
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state.SetURLs([]string{"http://example.com"})
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},
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expectedType: "*core.WebScanStrategy",
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info: common.HostInfo{Host: "example.com"},
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},
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{
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name: "服务扫描模式-默认",
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setupConfig: func() {
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cfg.AliveOnly = false
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cfg.Mode = ""
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cfg.LocalMode = false
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state.SetURLs(nil)
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},
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expectedType: "*core.ServiceScanStrategy",
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info: common.HostInfo{Host: "192.168.1.1", Port: 22},
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},
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{
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name: "优先级测试-AliveOnly覆盖LocalMode",
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setupConfig: func() {
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cfg.AliveOnly = true
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cfg.Mode = ""
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cfg.LocalMode = true // 被AliveOnly覆盖
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state.SetURLs(nil)
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},
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expectedType: "*core.AliveScanStrategy",
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info: common.HostInfo{Host: "localhost"},
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},
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{
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name: "优先级测试-LocalMode覆盖URLs",
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setupConfig: func() {
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cfg.AliveOnly = false
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cfg.Mode = ""
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cfg.LocalMode = true
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state.SetURLs([]string{"http://example.com"}) // 被LocalMode覆盖
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},
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expectedType: "*core.LocalScanStrategy",
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info: common.HostInfo{Host: "localhost"},
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},
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{
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name: "优先级测试-URLs覆盖默认服务扫描",
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setupConfig: func() {
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cfg.AliveOnly = false
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cfg.Mode = ""
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cfg.LocalMode = false
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state.SetURLs([]string{"http://example.com"})
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},
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expectedType: "*core.WebScanStrategy",
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info: common.HostInfo{Host: "192.168.1.1", Port: 80},
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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// 设置配置
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tt.setupConfig()
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// 执行策略选择
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strategy := selectStrategy(cfg, state, tt.info)
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// 验证策略类型
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strategyType := fmt.Sprintf("%T", strategy)
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if strategyType != tt.expectedType {
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t.Errorf("selectStrategy() 类型 = %s, 期望 %s", strategyType, tt.expectedType)
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}
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// 验证策略不为nil
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if strategy == nil {
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t.Error("selectStrategy() 返回 nil")
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}
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})
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}
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}
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// TestSelectStrategy_AllModesDisabled 测试所有模式禁用时的默认行为
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func TestSelectStrategy_AllModesDisabled(t *testing.T) {
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// 保存原始配置
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cfg := common.GetGlobalConfig()
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state := common.GetGlobalState()
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origAliveOnly := cfg.AliveOnly
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origMode := cfg.Mode
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origLocalMode := cfg.LocalMode
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origURLs := state.GetURLs()
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defer func() {
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cfg.AliveOnly = origAliveOnly
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cfg.Mode = origMode
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cfg.LocalMode = origLocalMode
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state.SetURLs(origURLs)
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}()
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// 设置所有模式为禁用状态
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cfg.AliveOnly = false
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cfg.Mode = ""
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cfg.LocalMode = false
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state.SetURLs(nil)
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info := common.HostInfo{Host: "192.168.1.1"}
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strategy := selectStrategy(cfg, state, info)
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// 应该返回默认的ServiceScanStrategy
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expectedType := "*core.ServiceScanStrategy"
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strategyType := fmt.Sprintf("%T", strategy)
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if strategyType != expectedType {
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t.Errorf("默认策略类型 = %s, 期望 %s", strategyType, expectedType)
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}
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}
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// =============================================================================
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// =============================================================================
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// 任务计数逻辑测试（需要mock策略）
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// =============================================================================
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// mockStrategy 用于测试的mock策略
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type mockStrategy struct {
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plugins []string
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isCustomMode bool
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applicablePlugins map[string]bool // pluginName -> isApplicable
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}
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func (m *mockStrategy) Execute(_ context.Context, session *common.ScanSession, info common.HostInfo, ch chan struct{}, wg *sync.WaitGroup) {
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}
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func (m *mockStrategy) GetPlugins() ([]string, bool) {
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return m.plugins, m.isCustomMode
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}
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func (m *mockStrategy) IsPluginApplicableByName(pluginName string, targetHost string, targetPort int, isCustomMode bool) bool {
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if m.applicablePlugins == nil {
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return true // 默认都适用
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}
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return m.applicablePlugins[pluginName]
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}
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// TestCountApplicableTasks 测试任务计数逻辑
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func TestCountApplicableTasks(t *testing.T) {
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tests := []struct {
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name string
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targets []common.HostInfo
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strategy *mockStrategy
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setupPlugins func()
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expected int
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}{
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{
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name: "空目标列表",
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targets: []common.HostInfo{},
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strategy: &mockStrategy{
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plugins: []string{"ssh", "mysql"},
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isCustomMode: false,
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},
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setupPlugins: func() {},
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expected: 0,
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},
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{
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name: "单目标单插件",
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targets: []common.HostInfo{
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{Host: "192.168.1.1", Port: 22},
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},
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strategy: &mockStrategy{
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plugins: []string{"ssh"},
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isCustomMode: false,
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},
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setupPlugins: func() {},
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expected: 1, // 取决于插件是否存在
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},
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{
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name: "单目标多插件",
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targets: []common.HostInfo{
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{Host: "192.168.1.1", Port: 22},
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},
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strategy: &mockStrategy{
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plugins: []string{"ssh", "mysql", "redis"},
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isCustomMode: false,
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},
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setupPlugins: func() {},
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expected: 3, // 假设所有插件都存在且适用
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},
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{
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name: "多目标单插件",
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targets: []common.HostInfo{
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{Host: "192.168.1.1", Port: 22},
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{Host: "192.168.1.2", Port: 22},
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{Host: "192.168.1.3", Port: 22},
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},
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strategy: &mockStrategy{
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plugins: []string{"ssh"},
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isCustomMode: false,
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},
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setupPlugins: func() {},
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expected: 3,
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},
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{
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name: "多目标多插件",
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targets: []common.HostInfo{
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{Host: "192.168.1.1", Port: 22},
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{Host: "192.168.1.2", Port: 80},
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},
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strategy: &mockStrategy{
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plugins: []string{"ssh", "http"},
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isCustomMode: false,
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},
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setupPlugins: func() {},
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expected: 4, // 2 targets * 2 plugins
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},
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{
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name: "部分插件不适用",
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targets: []common.HostInfo{
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{Host: "192.168.1.1", Port: 22},
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{Host: "192.168.1.2", Port: 80},
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},
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strategy: &mockStrategy{
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plugins: []string{"ssh", "http", "mysql"},
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isCustomMode: false,
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applicablePlugins: map[string]bool{
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"ssh": true,
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"http": true,
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"mysql": false, // mysql不适用
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},
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},
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setupPlugins: func() {},
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expected: 4, // 2 targets * 2 applicable plugins
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},
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{
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name: "空端口-端口为0",
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targets: []common.HostInfo{
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{Host: "192.168.1.1", Port: 0},
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},
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strategy: &mockStrategy{
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plugins: []string{"ssh"},
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isCustomMode: false,
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},
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setupPlugins: func() {},
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expected: 1,
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},
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{
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name: "非法端口-解析为0",
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targets: []common.HostInfo{
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{Host: "192.168.1.1", Port: 0},
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},
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strategy: &mockStrategy{
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plugins: []string{"ssh"},
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isCustomMode: false,
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},
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setupPlugins: func() {},
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expected: 1,
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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tt.setupPlugins()
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// 注意：实际的countApplicableTasks依赖plugins.Exists()
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// 这里我们只能测试逻辑结构，无法验证实际插件系统
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// 这是"上帝函数"的典型问题：无法mock依赖
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// 提取纯逻辑测试
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count := 0
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for _, target := range tt.targets {
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targetPort := target.Port
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pluginsToRun, isCustomMode := tt.strategy.GetPlugins()
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for _, pluginName := range pluginsToRun {
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// 跳过plugins.Exists检查（无法mock）
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if tt.strategy.IsPluginApplicableByName(pluginName, target.Host, targetPort, isCustomMode) {
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count++
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}
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}
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}
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if count != tt.expected {
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t.Errorf("任务计数 = %d, 期望 %d", count, tt.expected)
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}
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})
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}
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}
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// =============================================================================
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// 边界情况测试
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// =============================================================================
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// TestSelectStrategy_EmptyHostInfo 测试空HostInfo的策略选择
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func TestSelectStrategy_EmptyHostInfo(t *testing.T) {
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// 保存原始配置
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cfg := common.GetGlobalConfig()
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state := common.GetGlobalState()
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origAliveOnly := cfg.AliveOnly
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origMode := cfg.Mode
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origLocalMode := cfg.LocalMode
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origURLs := state.GetURLs()
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defer func() {
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cfg.AliveOnly = origAliveOnly
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cfg.Mode = origMode
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cfg.LocalMode = origLocalMode
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state.SetURLs(origURLs)
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}()
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cfg.AliveOnly = false
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cfg.Mode = ""
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cfg.LocalMode = false
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state.SetURLs(nil)
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emptyInfo := common.HostInfo{}
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strategy := selectStrategy(cfg, state, emptyInfo)
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if strategy == nil {
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t.Error("selectStrategy() 不应对空HostInfo返回nil")
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}
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// 应该返回默认策略
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expectedType := "*core.ServiceScanStrategy"
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strategyType := fmt.Sprintf("%T", strategy)
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if strategyType != expectedType {
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t.Errorf("空HostInfo策略类型 = %s, 期望 %s", strategyType, expectedType)
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}
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}
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// =============================================================================
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// buildScanReport 测试
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// =============================================================================
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// TestBuildScanReport 验证 buildScanReport 字段映射正确
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func TestBuildScanReport(t *testing.T) {
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state := common.NewState()
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// 填充各计数器
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state.SetEnd(10)
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state.SetNum(7)
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state.IncrementTCPSuccessPacketCount() // +1 total, +1 tcp, +1 tcpSuccess
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state.IncrementTCPSuccessPacketCount() // +1 total, +1 tcp, +1 tcpSuccess
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state.IncrementTCPFailedPacketCount() // +1 total, +1 tcp, +1 tcpFailed
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state.IncrementUDPPacketCount() // +1 total, +1 udp
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state.IncrementHTTPPacketCount() // +1 total, +1 http
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state.IncrementResourceExhaustedCount()
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start := time.Now().Add(-time.Second) // 模拟 1 秒前开始
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report := buildScanReport(state, start)
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if report.TasksTotal != 10 {
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t.Errorf("TasksTotal = %d, 期望 10", report.TasksTotal)
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}
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if report.TasksCompleted != 7 {
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t.Errorf("TasksCompleted = %d, 期望 7", report.TasksCompleted)
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}
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if report.Packets != 5 {
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t.Errorf("Packets = %d, 期望 5", report.Packets)
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}
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if report.TCPPackets != 3 {
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t.Errorf("TCPPackets = %d, 期望 3", report.TCPPackets)
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}
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if report.TCPSuccessPackets != 2 {
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t.Errorf("TCPSuccessPackets = %d, 期望 2", report.TCPSuccessPackets)
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}
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if report.TCPFailedPackets != 1 {
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t.Errorf("TCPFailedPackets = %d, 期望 1", report.TCPFailedPackets)
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}
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if report.UDPPackets != 1 {
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t.Errorf("UDPPackets = %d, 期望 1", report.UDPPackets)
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}
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if report.HTTPPackets != 1 {
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t.Errorf("HTTPPackets = %d, 期望 1", report.HTTPPackets)
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}
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if report.ResourceExhausted != 1 {
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t.Errorf("ResourceExhausted = %d, 期望 1", report.ResourceExhausted)
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}
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if report.Duration < time.Millisecond {
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t.Errorf("Duration = %v, 期望 >= 1ms", report.Duration)
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}
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}
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// TestBuildScanReport_ZeroState 验证空 State 返回零值报告
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func TestBuildScanReport_ZeroState(t *testing.T) {
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state := common.NewState()
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start := time.Now()
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report := buildScanReport(state, start)
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|
||
if report.TasksTotal != 0 || report.TasksCompleted != 0 || report.Packets != 0 {
|
||
t.Errorf("空 State 期望全零报告，实际 %+v", report)
|
||
}
|
||
if report.Duration < 0 {
|
||
t.Errorf("Duration 不能为负: %v", report.Duration)
|
||
}
|
||
}
|
||
|
||
// =============================================================================
|
||
// determineScanMode IsLocalMode 分支测试
|
||
// =============================================================================
|
||
|
||
// TestDetermineScanMode_IsLocalModeCallback 覆盖 IsLocalMode 回调分支
|
||
func TestDetermineScanMode_IsLocalModeCallback(t *testing.T) {
|
||
// 保存原始值
|
||
origIsLocalMode := common.IsLocalMode
|
||
defer func() { common.IsLocalMode = origIsLocalMode }()
|
||
|
||
// 注册回调：mode == "localtest" 时认为是本地模式
|
||
common.IsLocalMode = func(mode string) bool {
|
||
return mode == "localtest"
|
||
}
|
||
|
||
cfg := &common.Config{
|
||
AliveOnly: false,
|
||
Mode: "localtest",
|
||
LocalMode: false,
|
||
}
|
||
state := common.NewState()
|
||
|
||
mode := determineScanMode(cfg, state)
|
||
if mode != ScanModeLocal {
|
||
t.Errorf("determineScanMode() = %v, 期望 ScanModeLocal", mode)
|
||
}
|
||
// 回调命中后应同时设置 LocalMode 和 LocalPlugin
|
||
if !cfg.LocalMode {
|
||
t.Error("IsLocalMode 命中后应设置 cfg.LocalMode = true")
|
||
}
|
||
if cfg.LocalPlugin != "localtest" {
|
||
t.Errorf("LocalPlugin = %q, 期望 \"localtest\"", cfg.LocalPlugin)
|
||
}
|
||
}
|
||
|
||
// TestDetermineScanMode_IsLocalModeCallbackNoMatch 回调不命中时不影响模式
|
||
func TestDetermineScanMode_IsLocalModeCallbackNoMatch(t *testing.T) {
|
||
origIsLocalMode := common.IsLocalMode
|
||
defer func() { common.IsLocalMode = origIsLocalMode }()
|
||
|
||
common.IsLocalMode = func(mode string) bool { return false }
|
||
|
||
cfg := &common.Config{
|
||
AliveOnly: false,
|
||
Mode: "something",
|
||
LocalMode: false,
|
||
}
|
||
state := common.NewState()
|
||
|
||
mode := determineScanMode(cfg, state)
|
||
if mode != ScanModeService {
|
||
t.Errorf("回调不命中时期望 ScanModeService, 实际 %v", mode)
|
||
}
|
||
}
|
||
|
||
// TestCountApplicableTasks_EmptyPlugins 测试空插件列表
|
||
func TestCountApplicableTasks_EmptyPlugins(t *testing.T) {
|
||
targets := []common.HostInfo{
|
||
{Host: "192.168.1.1", Port: 22},
|
||
}
|
||
|
||
strategy := &mockStrategy{
|
||
plugins: []string{},
|
||
isCustomMode: false,
|
||
}
|
||
|
||
count := 0
|
||
for _, target := range targets {
|
||
targetPort := target.Port
|
||
pluginsToRun, isCustomMode := strategy.GetPlugins()
|
||
|
||
for _, pluginName := range pluginsToRun {
|
||
if strategy.IsPluginApplicableByName(pluginName, target.Host, targetPort, isCustomMode) {
|
||
count++
|
||
}
|
||
}
|
||
}
|
||
|
||
if count != 0 {
|
||
t.Errorf("空插件列表应返回0任务, 实际 %d", count)
|
||
}
|
||
}
|