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Tunnel view model: Support for exclude private IPs

This commit is contained in:
Roopesh Chander 2018-10-29 15:08:26 +05:30
parent 7f69cb6118
commit eb61152fe0
1 changed files with 70 additions and 0 deletions
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70
WireGuard/WireGuard/UI/TunnelViewModel.swift
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@ -179,6 +179,13 @@ class TunnelViewModel {
var fieldsWithError: Set<PeerField> = []
var validatedConfiguration: PeerConfiguration? = nil
// For exclude private IPs
var shouldAllowExcludePrivateIPsControl: Bool = false
var excludePrivateIPsValue: Bool = false
var numberOfPeers: Int = 0 {
didSet { updateExcludePrivateIPsFieldState() }
}
init(index: Int) {
self.index = index
}
@ -204,6 +211,9 @@ class TunnelViewModel {
} else {
scratchpad[field] = stringValue
}
if (field == .allowedIPs) {
updateExcludePrivateIPsFieldState()
}
}
}
@ -223,6 +233,7 @@ class TunnelViewModel {
if let persistentKeepAlive = config.persistentKeepAlive {
scratchpad[.persistentKeepAlive] = String(persistentKeepAlive)
}
updateExcludePrivateIPsFieldState()
}
func save() -> SaveResult<PeerConfiguration> {
@ -291,6 +302,59 @@ class TunnelViewModel {
}
// TODO: Cache this to avoid recomputing
}
static let ipv4DefaultRouteString = "0.0.0.0/0"
static let ipv4DefaultRouteModRFC1918String = [ // Set of all non-private IPv4 IPs
"0.0.0.0/5", "8.0.0.0/7", "11.0.0.0/8", "12.0.0.0/6", "16.0.0.0/4", "32.0.0.0/3",
"64.0.0.0/2", "128.0.0.0/3", "160.0.0.0/5", "168.0.0.0/6", "172.0.0.0/12",
"172.32.0.0/11", "172.64.0.0/10", "172.128.0.0/9", "173.0.0.0/8", "174.0.0.0/7",
"176.0.0.0/4", "192.0.0.0/9", "192.128.0.0/11", "192.160.0.0/13", "192.169.0.0/16",
"192.170.0.0/15", "192.172.0.0/14", "192.176.0.0/12", "192.192.0.0/10",
"193.0.0.0/8", "194.0.0.0/7", "196.0.0.0/6", "200.0.0.0/5", "208.0.0.0/4"
]
func updateExcludePrivateIPsFieldState() {
guard (numberOfPeers == 1) else {
shouldAllowExcludePrivateIPsControl = false
excludePrivateIPsValue = false
return
}
let allowedIPStrings = Set<String>(
(scratchpad[.allowedIPs] ?? "")
.split(separator: ",")
.map { $0.trimmingCharacters(in: CharacterSet.whitespacesAndNewlines) }
)
if (allowedIPStrings.contains(TunnelViewModel.PeerData.ipv4DefaultRouteString)) {
shouldAllowExcludePrivateIPsControl = true
excludePrivateIPsValue = false
} else if (allowedIPStrings.isSuperset(of: TunnelViewModel.PeerData.ipv4DefaultRouteModRFC1918String)) {
shouldAllowExcludePrivateIPsControl = true
excludePrivateIPsValue = true
} else {
shouldAllowExcludePrivateIPsControl = false
excludePrivateIPsValue = false
}
}
func excludePrivateIPsValueChanged(isOn: Bool, dnsServers: String) {
let allowedIPStrings = (scratchpad[.allowedIPs] ?? "")
.split(separator: ",")
.map { $0.trimmingCharacters(in: CharacterSet.whitespacesAndNewlines) }
let dnsServerStrings = dnsServers
.split(separator: ",")
.map { $0.trimmingCharacters(in: CharacterSet.whitespacesAndNewlines) }
let ipv6Addresses = allowedIPStrings.filter { $0.contains(":") }
let modifiedAllowedIPStrings: [String]
if (isOn) {
modifiedAllowedIPStrings = ipv6Addresses +
TunnelViewModel.PeerData.ipv4DefaultRouteModRFC1918String + dnsServerStrings
} else {
modifiedAllowedIPStrings = ipv6Addresses +
[TunnelViewModel.PeerData.ipv4DefaultRouteString]
}
scratchpad[.allowedIPs] = modifiedAllowedIPStrings.joined(separator: ", ")
excludePrivateIPsValue = isOn
}
}
enum SaveResult<Configuration> {
@ -317,6 +381,9 @@ class TunnelViewModel {
func appendEmptyPeer() {
let peer = PeerData(index: peersData.count)
peersData.append(peer)
for p in peersData {
p.numberOfPeers = peersData.count
}
}
func deletePeer(peer: PeerData) {
@ -326,6 +393,9 @@ class TunnelViewModel {
assert(p.index > 0)
p.index = p.index - 1
}
for p in peersData {
p.numberOfPeers = peersData.count
}
}
func save() -> SaveResult<TunnelConfiguration> {