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Utils.kt
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Utils.kt
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/*
* Copyright (c) 2018 Juniper Networks, Inc. All rights reserved.
*/
package net.juniper.contrail.vro.model
import net.juniper.contrail.api.types.AddressType
import net.juniper.contrail.api.types.NetworkIpam
import net.juniper.contrail.api.types.NetworkPolicy
import net.juniper.contrail.api.types.PolicyRuleType
import net.juniper.contrail.api.types.PortType
import net.juniper.contrail.api.types.RouteType
import net.juniper.contrail.api.types.SecurityGroup
import net.juniper.contrail.api.types.SubnetType
import net.juniper.contrail.api.types.VirtualNetwork
import net.juniper.contrail.api.types.VnSubnetsType
import net.juniper.contrail.api.types.AllowedAddressPair
import net.juniper.contrail.api.types.IpamSubnetType
import net.juniper.contrail.vro.format.PropertyFormatter
import java.util.UUID
class Utils {
private val minPort = 0
private val maxPort = 65535
private val macPattern =
"^(?:[\\p{XDigit}]{1,2}([-:]))(?:[\\p{XDigit}]{1,2}\\1){4}[\\p{XDigit}]{1,2}$".toRegex()
private val integerPattern = "\\d+".toRegex()
private val whitespacePattern = "\\s+".toRegex()
fun isValidAddress(input: String): Boolean =
NetAddressValidator.isValidAddress(input)
fun isValidIpv4Address(input: String): Boolean =
NetAddressValidator.IPv4.isValidAddress(input)
fun isValidIpv6Address(input: String): Boolean =
NetAddressValidator.IPv6.isValidAddress(input)
fun isValidSubnet(input: String): Boolean =
NetAddressValidator.isValidSubnet(input)
fun isValidIpv6Subnet(input: String): Boolean =
NetAddressValidator.IPv6.isValidSubnet(input)
fun isValidIpv4Subnet(input: String): Boolean =
NetAddressValidator.IPv4.isValidSubnet(input)
fun isValidCidr(input: String): Boolean =
NetAddressValidator.isValidCidr(input)
fun isValidIpv6Cidr(input: String): Boolean =
NetAddressValidator.IPv6.isValidCidr(input)
fun isValidIpv4Cidr(input: String): Boolean =
NetAddressValidator.IPv4.isValidCidr(input)
fun isValidPool(input: List<String>): Boolean =
NetAddressValidator.areValidPools(input)
fun isValidIpv4Pool(input: List<String>): Boolean =
NetAddressValidator.IPv4.areValidPools(input)
fun isValidIpv6Pool(input: List<String>): Boolean =
NetAddressValidator.IPv6.areValidPools(input)
fun isValidAllocationPool(cidr: String, pools: List<String>): Boolean {
if (isValidIpv4Subnet(cidr) && isValidIpv4Pool(pools)) {
return parsePools(cidr, pools, ::IPv4)
} else if (isValidIpv6Subnet(cidr) && isValidIpv6Pool(pools)) {
return parsePools(cidr, pools, ::IPv6)
}
return false
}
fun isInCidr(cidr: String, address: String): Boolean {
if (isValidIpv4Address(address) && isValidIpv4Subnet(cidr)) {
return IPv4(address) in subnetRange(cidr, ::IPv4)
} else if (isValidIpv6Address(address) && isValidIpv6Subnet(cidr)) {
return IPv6(address) in subnetRange(cidr, ::IPv6)
}
return false
}
fun isFree(cidr: String, address: String, pools: List<String>?, dnsAddr: String?): Boolean {
if (isValidIpv4Subnet(cidr) && isValidIpv4Address(address)) {
if (pools != null && !pools.isBlankList() && !isValidIpv4Pool(pools)) return false
if (dnsAddr != null && dnsAddr.isNotBlank() && !isValidIpv4Address(dnsAddr)) return false
val ip = IPv4(address)
return (ip in subnetRange(cidr, ::IPv4)) && ip.notInPools(pools, ::IPv4)
&& !dnsAddr.equalsIp(ip, ::IPv4)
} else if (isValidIpv6Subnet(cidr) && isValidIpv6Address(address)) {
if (pools != null && !pools.isBlankList() && !isValidIpv6Pool(pools)) return false
if (dnsAddr != null && dnsAddr.isNotBlank() && !isValidIpv6Address(dnsAddr)) return false
val ip = IPv6(address)
return (ip in subnetRange(cidr, ::IPv6)) && ip.notInPools(pools, ::IPv6)
&& !dnsAddr.equalsIp(ip, ::IPv6)
}
return false
}
fun isValidMacAddress(mac : String) : Boolean =
mac.matches(macPattern)
// first part must be an integer in range [0, 65535]; second number must be a positive integer.
fun isValidCommunityAttribute(communityAttribute: String): Boolean {
val parts = communityAttribute.split(":")
if (parts.size != 2) return false
val firstPartNumericValue = parts[0].toIntOrNull() ?: return false
if (firstPartNumericValue < minPort || firstPartNumericValue > maxPort) return false
return parts[1].matches(integerPattern)
}
fun getVnSubnet(network: VirtualNetwork, ipam: NetworkIpam): VnSubnetsType =
network.networkIpam?.find { it.uuid == ipam.uuid }?.attr ?: VnSubnetsType()
fun isNetworRelatedToIpam(network: VirtualNetwork, ipam: NetworkIpam): Boolean =
network.networkIpam?.any { it.uuid == ipam.uuid } ?: false
fun removeSubnetFromVirtualNetwork(network: VirtualNetwork, subnet: String) {
val ipams = network.networkIpam ?: return
val ipPrefix = parseSubnetIP(subnet)
val ipPrefixLen = parseSubnetPrefix(subnet).toInt()
//first remove subnet from attributes
ipams.forEach {
it.attr.ipamSubnets.removeIf { it.subnet.ipPrefix == ipPrefix && it.subnet.ipPrefixLen == ipPrefixLen }
}
//then remove IPAMs if have not subnets
ipams.removeIf {
it.attr.ipamSubnets.isEmpty()
}
}
private fun String.clean() =
replace(whitespacePattern, "")
fun parsePortsOfNetworkPolicyRule(ports: String): List<PortType> {
val ranges = ports.split(",").map { it.clean() }
return ranges.map { parsePortRange(it, anyAsFullRange = false) }
}
fun parsePortsOfSecurityGroupRule(ports: String): List<PortType> {
val ranges = ports.split(",").map { it.clean() }
if (ranges.size > 1) throw IllegalArgumentException("Only one port range is allowed in security group rule")
return ranges.map { parsePortRange(it, anyAsFullRange = true) }
}
private fun parsePortRange(def: String, anyAsFullRange: Boolean): PortType {
val ends = def.split("-")
return when (ends.size) {
1 ->
if (ends[0] == "any") {
if (anyAsFullRange) {
PortType(minPort, maxPort)
} else {
PortType(-1, -1)
}
} else {
val portNumber = parsePort(ends[0])
PortType(portNumber, portNumber)
}
2 -> {
val portRangeStart = parsePort(ends[0])
val portRangeEnd = parsePort(ends[1])
PortType(portRangeStart, portRangeEnd)
}
else -> throw IllegalArgumentException("Invalid port ranges format")
}
}
private fun parsePort(port: String): Int {
val portNumber = port.toInt()
if (portNumber < minPort || portNumber > maxPort) {
throw IllegalArgumentException("Port number $portNumber out of bounds ($minPort-$maxPort)")
}
return portNumber
}
fun formatSubnet(subnet: SubnetType?): String? {
if (subnet == null) return null
if (subnet.ipPrefix == null || subnet.ipPrefixLen == null) return null
return subnet.run { "$ipPrefix/$ipPrefixLen" }
}
fun parseSubnet(def: String?): SubnetType? {
if (def == null || def.isBlank()) return null
val cleaned = def.trim()
val parts = cleaned.split(":")
val (virtualNetworkName, virtualNetworkAddress) = when (parts.size) {
1 -> Pair(null, parts[0])
2 -> Pair(parts[0], parts[1])
else -> throw IllegalArgumentException("Wrong subnet format. use CIDR or VN:CIDR")
}
if (!isValidSubnet(virtualNetworkAddress)) throw IllegalArgumentException("Wrong CIDR format.")
val (subnetIP, subnetPrefix) = virtualNetworkAddress.split('/')
val fullNetworkName = if (virtualNetworkName != null) {
"$virtualNetworkName:$subnetIP"
} else {
subnetIP
}
return SubnetType(fullNetworkName, subnetPrefix.toInt())
}
fun parseSubnetIP(address: String) : String =
address.trim().split('/')[0]
fun parseSubnetPrefix(address: String) : String =
address.trim().split('/')[1]
fun createAddress(
type: String,
cidr: String?,
networkType: String?,
network: VirtualNetwork?,
policy: NetworkPolicy?,
securityGroup: SecurityGroup?
): AddressType {
val subnet = if (type == "CIDR" && cidr != null) parseSubnet(cidr) else null
val networkName = if (type == "Network") {
if (networkType == "reference") {
network?.name
} else {
// "any" or "local"
networkType
}
} else null
val policyName = if (type == "Policy" && policy != null) policy.name else null
val securityGroupName = if (type == "Security Group") {
securityGroup?.qualifiedName?.joinToString(":") ?: "local"
} else null
return AddressType(subnet, networkName, securityGroupName, policyName)
}
fun randomUUID(): String =
UUID.randomUUID().toString()
fun allowedAddressPairToString(pair: AllowedAddressPair, index: Int) : String {
val mac = if (pair.mac != null && pair.mac.isNotBlank()) "mac ${pair.mac}" else ""
val addressMode = if (pair.addressMode != null && pair.addressMode.isNotBlank())
"allowed address mode ${pair.addressMode}" else ""
val ipPrefix = if (pair.ip != null) "ip ${pair.ip.ipPrefix}" else ""
val ipPrefixLen = if (pair.ip != null && pair.ip.ipPrefixLen != null) "/${pair.ip.ipPrefixLen}" else ""
return "$index: $ipPrefix$ipPrefixLen $mac $addressMode"
}
fun ruleToString(rule: PolicyRuleType, index: Int): String {
return "$index: ${rule.actionList?.simpleAction ?: ""} protocol ${rule.protocol} ${PropertyFormatter.format(rule.srcAddresses[0])} ports ${rule.srcPorts.joinToString(", "){PropertyFormatter.format(it)}} " +
"${rule.direction} ${PropertyFormatter.format(rule.dstAddresses[0])} ports ${rule.dstPorts.joinToString(", "){PropertyFormatter.format(it)}}"
}
fun stringToRuleFromNetworkPolicy(ruleString: String, policy: NetworkPolicy): PolicyRuleType {
val index = ruleString.split(":")[0].toInt()
return policy.entries.policyRule[index]
}
fun stringToRuleFromSecurityGroup(ruleString: String, group: SecurityGroup): PolicyRuleType {
val index = ruleString.split(":")[0].toInt()
return group.entries.policyRule[index]
}
fun ruleStringToIndex(ruleString: String): Int =
ruleString.split(":")[0].toInt()
fun routeToString(route: RouteType, index: Int): String {
return "$index: prefix ${route.prefix} next-hop-type ${route.nextHopType} next-hop ${route.nextHop} " +
"community-attributes ${route.communityAttributes?.communityAttribute?.joinToString(",") ?: ""}"
}
fun routeStringToIndex(routeString: String): Int {
return routeString.split(":")[0].toInt()
}
fun ipamSubnetToString(ipamSubnet: IpamSubnetType?): String? =
ipamSubnet?.run { "${subnet.ipPrefix}/${subnet.ipPrefixLen}" }
fun removeSubnetFromIpam(cidr: String, ipam : NetworkIpam) {
val ipPrefix = parseSubnetIP(cidr)
val ipPrefixLen = parseSubnetPrefix(cidr).toInt()
ipam.ipamSubnets.subnets.removeIf { it.subnet.ipPrefix == ipPrefix && it.subnet.ipPrefixLen == ipPrefixLen }
}
fun lowercase(s: String) =
s.toLowerCase()
fun trimList(s: List<String>) : List<String> =
s.trimList()
fun isBlankList(s: List<String>?) : Boolean =
s.isBlankList()
}