aboutsummaryrefslogtreecommitdiffstatshomepage
path: root/ui/src/main/java/com/wireguard/android/viewmodel/InterfaceProxy.kt
blob: bd2a98316dd96852650e379b197130b37defb908 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
/*
 * Copyright © 2017-2019 WireGuard LLC. All Rights Reserved.
 * SPDX-License-Identifier: Apache-2.0
 */
package com.wireguard.android.viewmodel

import android.os.Parcel
import android.os.Parcelable
import androidx.databinding.BaseObservable
import androidx.databinding.Bindable
import androidx.databinding.ObservableArrayList
import androidx.databinding.ObservableList
import com.wireguard.android.BR
import com.wireguard.config.Attribute
import com.wireguard.config.BadConfigException
import com.wireguard.config.Interface
import com.wireguard.crypto.Key
import com.wireguard.crypto.KeyFormatException
import com.wireguard.crypto.KeyPair

class InterfaceProxy : BaseObservable, Parcelable {
    @get:Bindable
    val excludedApplications: ObservableList<String> = ObservableArrayList()

    @get:Bindable
    val includedApplications: ObservableList<String> = ObservableArrayList()

    @get:Bindable
    var addresses: String = ""
        set(value) {
            field = value
            notifyPropertyChanged(BR.addresses)
        }

    @get:Bindable
    var dnsServers: String = ""
        set(value) {
            field = value
            notifyPropertyChanged(BR.dnsServers)
        }

    @get:Bindable
    var listenPort: String = ""
        set(value) {
            field = value
            notifyPropertyChanged(BR.listenPort)
        }

    @get:Bindable
    var mtu: String = ""
        set(value) {
            field = value
            notifyPropertyChanged(BR.mtu)
        }

    @get:Bindable
    var privateKey: String = ""
        set(value) {
            field = value
            notifyPropertyChanged(BR.privateKey)
            notifyPropertyChanged(BR.publicKey)
        }

    @get:Bindable
    val publicKey: String
        get() = try {
            KeyPair(Key.fromBase64(privateKey)).publicKey.toBase64()
        } catch (ignored: KeyFormatException) {
            ""
        }

    private constructor(parcel: Parcel) {
        addresses = parcel.readString() ?: ""
        dnsServers = parcel.readString() ?: ""
        parcel.readStringList(excludedApplications)
        parcel.readStringList(includedApplications)
        listenPort = parcel.readString() ?: ""
        mtu = parcel.readString() ?: ""
        privateKey = parcel.readString() ?: ""
    }

    constructor(other: Interface) {
        addresses = Attribute.join(other.addresses)
        val dnsServerStrings = other.dnsServers.map { it.hostAddress }
        dnsServers = Attribute.join(dnsServerStrings)
        excludedApplications.addAll(other.excludedApplications)
        includedApplications.addAll(other.includedApplications)
        listenPort = other.listenPort.map { it.toString() }.orElse("")
        mtu = other.mtu.map { it.toString() }.orElse("")
        val keyPair = other.keyPair
        privateKey = keyPair.privateKey.toBase64()
    }

    constructor()

    override fun describeContents() = 0

    fun generateKeyPair() {
        val keyPair = KeyPair()
        privateKey = keyPair.privateKey.toBase64()
        notifyPropertyChanged(BR.privateKey)
        notifyPropertyChanged(BR.publicKey)
    }

    @Throws(BadConfigException::class)
    fun resolve(): Interface {
        val builder = Interface.Builder()
        if (addresses.isNotEmpty()) builder.parseAddresses(addresses)
        if (dnsServers.isNotEmpty()) builder.parseDnsServers(dnsServers)
        if (excludedApplications.isNotEmpty()) builder.excludeApplications(excludedApplications)
        if (includedApplications.isNotEmpty()) builder.includeApplications(includedApplications)
        if (listenPort.isNotEmpty()) builder.parseListenPort(listenPort)
        if (mtu.isNotEmpty()) builder.parseMtu(mtu)
        if (privateKey.isNotEmpty()) builder.parsePrivateKey(privateKey)
        return builder.build()
    }

    override fun writeToParcel(dest: Parcel, flags: Int) {
        dest.writeString(addresses)
        dest.writeString(dnsServers)
        dest.writeStringList(excludedApplications)
        dest.writeStringList(includedApplications)
        dest.writeString(listenPort)
        dest.writeString(mtu)
        dest.writeString(privateKey)
    }

    private class InterfaceProxyCreator : Parcelable.Creator<InterfaceProxy> {
        override fun createFromParcel(parcel: Parcel): InterfaceProxy {
            return InterfaceProxy(parcel)
        }

        override fun newArray(size: Int): Array<InterfaceProxy?> {
            return arrayOfNulls(size)
        }
    }

    companion object {
        @JvmField
        val CREATOR: Parcelable.Creator<InterfaceProxy> = InterfaceProxyCreator()
    }
}