211 lines
6.7 KiB
C#
211 lines
6.7 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Collections;
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using System.Security;
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using ln.types;
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using System.Linq;
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using System.Threading;
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using ln.skyscanner.crawl;
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using ln.snmp.rfc1213;
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using ln.types.odb;
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using ln.types.sync;
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using ln.logging;
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using System.Globalization;
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using ln.types.threads;
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using ln.types.odb.values;
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namespace ln.skyscanner.entities
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{
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public class GlobalNetwork : Persistent
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{
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[Unsynced]
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public SkyScanner SkyScanner => SkyScanner.Instance;
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[Unsynced]
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public SkyEntities SkyEntities { get; private set; }
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public IEnumerable<Subnet> Subnets => SkyEntities.subnetCollection;
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public IEnumerable<Node> Nodes => SkyEntities.nodeCollection;
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public HopMap DefaultHopMap { get; private set; } = new HopMap();
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private object _updateLock = new object();
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public GlobalNetwork()
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{
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}
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public GlobalNetwork(SkyEntities skyEntities)
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{
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SkyEntities = skyEntities;
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}
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public void EnsureSubnet(CIDR network)
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{
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SkyScanner.Crawler.EnsureSubnet(network);
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Subnet subnet = SkyEntities.subnetCollection.Where(s => s.Network.Equals(network)).FirstOrDefault();
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if (subnet == null)
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{
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subnet = new Subnet(network);
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SkyEntities.subnetCollection.Upsert(subnet);
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}
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}
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public Node GetNode(Guid id)
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{
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return SkyEntities.nodeCollection.Select(id);
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}
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public Subnet FindSubnetForHost(CIDR host)
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{
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return SkyEntities.subnetCollection.Select(net => net.Network.Contains(host)).FirstOrDefault();
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}
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public IEnumerable<Node> FindHostsInSubnet(CIDR network)
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{
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IntfIP[] intfIPs = SkyEntities.intfIPCollection.Select((ip) => ip.IP.In(network)).ToArray();
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NetworkInterface[] networkInterfaces = intfIPs.Select((iip) => iip.NetworkInterface).Distinct().ToArray();
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Node[] nodes = SkyEntities.nodeCollection.Select(networkInterfaces.Select((ni) => (ODBValue)ni.NodeID).Distinct()).ToArray();
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return nodes;
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}
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public IEnumerable<Node> FindNeighbors(Node node)
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{
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return node.IPAdresses.SelectMany((ip) => Timing.Meassure("FindHostsInSubnet", () => FindHostsInSubnet(ip)).Distinct().ToArray());
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}
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public Node FindNodeByIP(IEnumerable<CIDR> ips)
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{
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foreach (CIDR ip in ips)
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{
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Node node = FindNodeByIP(ip);
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if (node != null)
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return node;
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}
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return null;
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}
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public Node FindNodeByIP(CIDR ip)
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{
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ip = ip.Host;
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IntfIP _iip = SkyEntities.intfIPCollection.Where((iip) => iip.IP.Host.Equals(ip)).FirstOrDefault();
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return _iip?.NetworkInterface?.Node;
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}
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[Unsynced]
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private Queue<CrawledHost> updateQueue = new Queue<CrawledHost>();
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public void EnqueueUpdate(CrawledHost crawledHost)
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{
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lock (updateQueue)
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{
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if (!updateQueue.Contains(crawledHost))
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updateQueue.Enqueue(crawledHost);
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}
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}
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public void Update()
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{
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lock (updateQueue)
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{
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if (updateQueue.Count == 0)
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return;
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}
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while (true)
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{
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CrawledHost crawledHost = null;
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lock (updateQueue)
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{
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if (updateQueue.Count > 0)
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crawledHost = updateQueue.Dequeue();
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else
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break;
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}
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Update(crawledHost);
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}
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//SkyScanner.Entities.DBGlobalNetwork.SavePersistent(SkyScanner.Entities.DBGlobalNetwork.Root);
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}
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private void Update(CrawledHost crawledHost)
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{
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Logging.Log(LogLevel.DEBUG, "Entity: update {0}", crawledHost.PrimaryIP);
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Node node = FindNodeByIP(crawledHost.PrimaryIP);
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if (node == null)
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node = FindNodeByIP(crawledHost.IPAddresses);
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if (node == null)
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{
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node = new Node(crawledHost.PrimaryIP);
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node.Name = crawledHost.Name;
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node.PrimaryMac = crawledHost.PrimaryHWAddr;
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}
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foreach (String si in crawledHost.GetHint<string[]>("rfc1213.interfaces",new string[0]))
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{
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String[] fields = si.Split(';');
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NetworkInterface networkInterface = node.GetInterface(fields[0]);
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if (networkInterface == null)
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networkInterface = new NetworkInterface(node, fields[0]);
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networkInterface.HWAddress = fields[1];
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SkyEntities.interfaceCollection.Upsert(networkInterface);
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CIDR[] crawledIPs = fields[2].Split(',').Where((sip) => !String.Empty.Equals(sip)).Select((sip) => CIDR.Parse(sip)).ToArray();
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IntfIP[] currentIPs = networkInterface.IPs.ToArray();
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foreach (CIDR crawledIP in crawledIPs)
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{
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int n;
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for (n=0; n < currentIPs.Length; n++)
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if (currentIPs[n].IP.Equals(crawledIP))
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break;
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if (n == currentIPs.Length)
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{
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IntfIP miss = new IntfIP(networkInterface, crawledIP);
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SkyEntities.intfIPCollection.Upsert(miss);
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}
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}
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foreach (IntfIP iip in currentIPs)
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{
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CIDR ip = iip.IP;
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if (crawledIPs.Contains(ip))
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{
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EnsureSubnet(ip.Network);
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}
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else
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{
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SkyEntities.intfIPCollection.Delete(iip);
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}
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}
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}
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node.RemoveURI("ssh");
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if (crawledHost.GetHint<int>("ssh.port", -1) != -1)
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{
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node.AddURI(
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new URI(
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String.Format("ssh://{0}:{1}@{2}:{3}",
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crawledHost.GetHint<string>("ssh.login"),
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crawledHost.GetHint<string>("ssh.password"),
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crawledHost.GetHint<CIDR>("ssh.ip"),
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crawledHost.GetHint<int>("ssh.port")
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)
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)
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);
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}
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node.LastUpdate = DateTime.Now;
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SkyEntities.nodeCollection.Upsert(node);
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}
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}
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}
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