实现自动SYN Flood防护

internal/web/actions/default/servers/components/waf/policy.go

@@ -84,6 +84,7 @@ func (this *PolicyAction) RunGet(params struct {
 	if len(firewallPolicy.Mode) == 0 {
 		firewallPolicy.Mode = firewallconfigs.FirewallModeDefend
 	}
+
 	this.Data["firewallPolicy"] = maps.Map{
 		"id":               firewallPolicy.Id,
 		"name":             firewallPolicy.Name,
@@ -94,6 +95,7 @@ func (this *PolicyAction) RunGet(params struct {
 		"groups":           internalGroups,
 		"blockOptions":     firewallPolicy.BlockOptions,
 		"useLocalFirewall": firewallPolicy.UseLocalFirewall,
+		"synFlood":         firewallPolicy.SYNFlood,
 	}
 
 	// 正在使用此策略的集群

internal/web/actions/default/servers/components/waf/update.go

@@ -48,6 +48,16 @@ func (this *UpdateAction) RunGet(params struct {
 	}
 	this.Data["modes"] = firewallconfigs.FindAllFirewallModes()
 
+	// syn flood
+	if firewallPolicy.SYNFlood == nil {
+		firewallPolicy.SYNFlood = &firewallconfigs.SYNFloodConfig{
+			IsOn:           false,
+			MinAttempts:    10,
+			TimeoutSeconds: 600,
+			IgnoreLocal:    true,
+		}
+	}
+
 	this.Data["firewallPolicy"] = maps.Map{
 		"id":               firewallPolicy.Id,
 		"name":             firewallPolicy.Name,
@@ -56,6 +66,7 @@ func (this *UpdateAction) RunGet(params struct {
 		"mode":             firewallPolicy.Mode,
 		"blockOptions":     firewallPolicy.BlockOptions,
 		"useLocalFirewall": firewallPolicy.UseLocalFirewall,
+		"synFloodConfig":   firewallPolicy.SYNFlood,
 	}
 
 	// 预置分组
@@ -89,6 +100,7 @@ func (this *UpdateAction) RunPost(params struct {
 	IsOn             bool
 	Mode             string
 	UseLocalFirewall bool
+	SynFloodJSON     []byte
 
 	Must *actions.Must
 }) {
@@ -115,6 +127,7 @@ func (this *UpdateAction) RunPost(params struct {
 		BlockOptionsJSON:     params.BlockOptionsJSON,
 		Mode:                 params.Mode,
 		UseLocalFirewall:     params.UseLocalFirewall,
+		SynFloodJSON:         params.SynFloodJSON,
 	})
 	if err != nil {
 		this.ErrorPage(err)

internal/web/actions/default/servers/init.go

@@ -10,6 +10,7 @@ import (
 func init() {
 	TeaGo.BeforeStart(func(server *TeaGo.Server) {
 		server.
+			Data("teaMenu", "servers").
 			Helper(helpers.NewUserMustAuth(configloaders.AdminModuleCodeServer)).
 			Helper(NewHelper()).
 			Prefix("/servers").

internal/web/actions/default/servers/iplists/index.go

@@ -133,6 +133,16 @@ func (this *IndexAction) RunGet(params struct {
 			}
 		}
 
+		// node
+		var sourceNodeMap = maps.Map{"id": 0}
+		if item.SourceNode != nil && item.SourceNode.NodeCluster != nil {
+			sourceNodeMap = maps.Map{
+				"id":        item.SourceNode.Id,
+				"name":      item.SourceNode.Name,
+				"clusterId": item.SourceNode.NodeCluster.Id,
+			}
+		}
+
 		itemMaps = append(itemMaps, maps.Map{
 			"id":             item.Id,
 			"ipFrom":         item.IpFrom,
@@ -149,6 +159,7 @@ func (this *IndexAction) RunGet(params struct {
 			"sourceGroup":    sourceGroupMap,
 			"sourceSet":      sourceSetMap,
 			"sourceServer":   sourceServerMap,
+			"sourceNode":     sourceNodeMap,
 			"list":           listMap,
 			"policy":         policyMap,
 		})

web/public/js/components/iplist/ip-list-table.js

@@ -172,6 +172,9 @@ Vue.component("ip-list-table", {
 						<a :href="'/servers/components/waf/group?firewallPolicyId=' +  item.sourcePolicy.id + '&type=inbound&groupId=' + item.sourceGroup.id" v-if="item.sourcePolicy.serverId == 0"><span class="small "><i class="icon shield"></i>{{item.sourcePolicy.name}} &raquo; {{item.sourceGroup.name}} &raquo; {{item.sourceSet.name}}</span></a>
 						<a :href="'/servers/server/settings/waf/group?serverId=' + item.sourcePolicy.serverId + '&firewallPolicyId=' + item.sourcePolicy.id + '&type=inbound&groupId=' + item.sourceGroup.id" v-if="item.sourcePolicy.serverId > 0"><span class="small "><i class="icon shield"></i> {{item.sourcePolicy.name}} &raquo; {{item.sourceGroup.name}} &raquo; {{item.sourceSet.name}}</span></a>
 					</div>
+					<div v-if="item.sourceNode != null && item.sourceNode.id > 0" style="margin-top: 0.4em">
+						<a :href="'/clusters/cluster/node?clusterId=' + item.sourceNode.clusterId + '&nodeId=' + item.sourceNode.id"><span class="small"><i class="icon cloud"></i>{{item.sourceNode.name}}</span></a>
+					</div>
 				</td>
 				<td>
 					<a href="" @click.prevent="viewLogs(item.id)">日志</a> &nbsp;

web/public/js/components/server/firewall-syn-flood-config-box.js

@@ -0,0 +1,92 @@
+Vue.component("firewall-syn-flood-config-box", {
+	props: ["v-syn-flood-config"],
+	data: function () {
+		let config = this.vSynFloodConfig
+		if (config == null) {
+			config = {
+				isOn: false,
+				minAttempts: 10,
+				timeoutSeconds: 600,
+				ignoreLocal: true
+			}
+		}
+		return {
+			config: config,
+			isEditing: false,
+			minAttempts: config.minAttempts,
+			timeoutSeconds: config.timeoutSeconds
+		}
+	},
+	methods: {
+		edit: function () {
+			this.isEditing = !this.isEditing
+		}
+	},
+	watch: {
+		minAttempts: function (v) {
+			let count = parseInt(v)
+			if (isNaN(count)) {
+				count = 10
+			}
+			if (count < 3) {
+				count = 3
+			}
+			this.config.minAttempts = count
+		},
+		timeoutSeconds: function (v) {
+			let seconds = parseInt(v)
+			if (isNaN(seconds)) {
+				seconds = 10
+			}
+			if (seconds < 60) {
+				seconds = 60
+			}
+			this.config.timeoutSeconds = seconds
+		}
+	},
+	template: `<div>
+	<input type="hidden" name="synFloodJSON" :value="JSON.stringify(config)"/>
+	<a href="" @click.prevent="edit">
+		<span v-if="config.isOn">
+			已启用 / <span>空连接次数：{{config.minAttempts}}次/分钟</span> / 封禁时间：{{config.timeoutSeconds}}秒 <span v-if="config.ignoreLocal">/ 忽略局域网访问</span>
+		</span>
+		<span v-else>未启用</span>
+		<i class="icon angle" :class="{up: isEditing, down: !isEditing}"></i>
+	</a>
+	
+	<table class="ui table selectable" v-show="isEditing">
+		<tr>
+			<td class="title">是否启用</td>
+			<td>
+				<checkbox v-model="config.isOn"></checkbox>
+				<p class="comment">启用后，WAF将会尝试自动检测并阻止SYN Flood攻击。此功能需要节点已安装并启用Firewalld。</p>
+			</td>
+		</tr>
+		<tr>
+			<td>空连接次数</td>
+			<td>
+				<div class="ui input right labeled">
+					<input type="text" v-model="minAttempts" style="width: 5em" maxlength="4"/>
+					<span class="ui label">次/分钟</span>
+				</div>
+				<p class="comment">超过此数字的"空连接"将被视为SYN Flood攻击，为了防止误判，此数值默认不小于3。</p>
+			</td>
+		</tr>
+		<tr>
+			<td>封禁时间</td>
+			<td>
+				<div class="ui input right labeled">
+					<input type="text" v-model="timeoutSeconds" style="width: 5em" maxlength="4"/>
+					<span class="ui label">秒</span>
+				</div>
+			</td>
+		</tr>
+		<tr>
+			<td>忽略局域网访问</td>
+			<td>
+				<checkbox v-model="config.ignoreLocal"></checkbox>
+			</td>
+		</tr>
+	</table>
+</div>`
+})

web/public/js/components/server/http-firewall-block-options.js

@@ -4,7 +4,8 @@ Vue.component("http-firewall-block-options", {
 		return {
 			blockOptions: this.vBlockOptions,
 			statusCode: this.vBlockOptions.statusCode,
-			timeout: this.vBlockOptions.timeout
+			timeout: this.vBlockOptions.timeout,
+			isEditing: false
 		}
 	},
 	watch: {
@@ -25,9 +26,15 @@ Vue.component("http-firewall-block-options", {
 			}
 		}
 	},
+	methods: {
+		edit: function () {
+			this.isEditing = !this.isEditing
+		}
+	},
 	template: `<div>
-<input type="hidden" name="blockOptionsJSON" :value="JSON.stringify(blockOptions)"/>
+	<input type="hidden" name="blockOptionsJSON" :value="JSON.stringify(blockOptions)"/>
-	<table class="ui table">
+	<a href="" @click.prevent="edit">状态码：{{statusCode}} / 提示内容：<span v-if="blockOptions.body != null && blockOptions.body.length > 0">[{{blockOptions.body.length}}字符]</span><span v-else class="disabled">[无]</span>  / 超时时间：{{timeout}}秒 <i class="icon angle" :class="{up: isEditing, down: !isEditing}"></i></a>
+	<table class="ui table" v-show="isEditing">
 		<tr>
 			<td class="title">状态码</td>
 			<td>

web/views/@default/servers/components/waf/policy.html

@@ -59,6 +59,39 @@
             <p class="comment" v-if="firewallPolicy.useLocalFirewall">可以在合适的时候自动使用系统自带防火墙进行防御。</p>
         </td>
     </tr>
+    <tr>
+        <td>SYN Flood防御</td>
+        <td>
+            <span v-if="firewallPolicy.synFlood == null || !firewallPolicy.synFlood.isOn" class="disabled">未启用</span>
+            <table class="ui table selectable" v-if="firewallPolicy.synFlood != null && firewallPolicy.synFlood.isOn">
+                <tr>
+                    <td class="title">是否启用</td>
+                    <td>
+                       <span class="green">启用</span>
+                    </td>
+                </tr>
+                <tr>
+                    <td>空连接次数</td>
+                    <td>
+                        {{firewallPolicy.synFlood.minAttempts}}次/分钟
+                    </td>
+                </tr>
+                <tr>
+                    <td>封禁时间</td>
+                    <td>
+                        {{firewallPolicy.synFlood.timeoutSeconds}}秒
+                    </td>
+                </tr>
+                <tr>
+                    <td>忽略局域网访问</td>
+                    <td>
+                        <span v-if="firewallPolicy.synFlood.ignoreLocal" class="green">Y</span>
+                        <span class="disabled" v-else>N</span>
+                    </td>
+                </tr>
+            </table>
+        </td>
+    </tr>
     <tr>
         <td>描述</td>
         <td>

web/views/@default/servers/components/waf/update.html

@@ -43,26 +43,32 @@
                     <checkbox name="useLocalFirewall" v-model="firewallPolicy.useLocalFirewall"></checkbox>
                     <p class="comment">开启后，可以在合适的时候自动使用系统自带防火墙进行防御。</p>
                 </td>
+            </tr>
+            <tr>
+                <td>SYN Flood防御</td>
+                <td>
+                    <firewall-syn-flood-config-box :v-syn-flood-config="firewallPolicy.synFloodConfig"></firewall-syn-flood-config-box>
+                </td>
             </tr>
 			<tr>
 				<td colspan="2"><more-options-indicator></more-options-indicator></td>
 			</tr>
 			<tbody v-show="moreOptionsVisible">
-			<tr>
+                <tr>
-				<td>描述</td>
+                    <td>描述</td>
-				<td>
+                    <td>
-					<textarea name="description" rows="3" v-model="firewallPolicy.description"></textarea>
+                        <textarea name="description" rows="3" v-model="firewallPolicy.description"></textarea>
-				</td>
+                    </td>
-			</tr>
+                </tr>
-			<tr>
+                <tr>
-				<td>是否启用</td>
+                    <td>是否启用</td>
-				<td>
+                    <td>
-					<div class="ui checkbox">
+                        <div class="ui checkbox">
-						<input type="checkbox" name="isOn" value="1" v-model="firewallPolicy.isOn"/>
+                            <input type="checkbox" name="isOn" value="1" v-model="firewallPolicy.isOn"/>
-						<label></label>
+                            <label></label>
-					</div>
+                        </div>
-				</td>
+                    </td>
-			</tr>
+                </tr>
 			</tbody>
 		</table>
 		<submit-btn></submit-btn>