Extract error messages to string resources

Useful for validation errors and localisation later on

Signed-off-by: Harsh Shandilya <me@msfjarvis.dev>

4 files changed, 23 insertions, 8 deletions

diff --git a/app/src/main/java/com/wireguard/config/Config.java b/app/src/main/java/com/wireguard/config/Config.java
index db8c2fc7..fbfc35fc 100644
--- a/app/src/main/java/com/wireguard/config/Config.java
+++ b/app/src/main/java/com/wireguard/config/Config.java
@@ -6,6 +6,7 @@
 
 package com.wireguard.config;
 
+import android.content.Context;
 import android.databinding.BaseObservable;
 import android.databinding.Bindable;
 import android.databinding.ObservableArrayList;
@@ -15,6 +16,8 @@ import android.os.Parcelable;
 import android.support.annotation.Nullable;
 
 import com.android.databinding.library.baseAdapters.BR;
+import com.wireguard.android.Application;
+import com.wireguard.android.R;
 
 import java.io.BufferedReader;
 import java.io.IOException;
@@ -43,6 +46,7 @@ public class Config {
 
     public static Config from(final BufferedReader reader) throws IOException {
         final Config config = new Config();
+        final Context context = Application.get();
         Peer currentPeer = null;
         String line;
         boolean inInterfaceSection = false;
@@ -65,11 +69,11 @@ public class Config {
             } else if (currentPeer != null) {
                 currentPeer.parse(line);
             } else {
-                throw new IllegalArgumentException("Invalid configuration line: " + line);
+                throw new IllegalArgumentException(context.getString(R.string.tunnel_error_invalid_config_line, line));
             }
         }
         if (!inInterfaceSection && currentPeer == null) {
-            throw new IllegalArgumentException("Could not find any config information");
+            throw new IllegalArgumentException(context.getString(R.string.tunnel_error_no_config_information));
         }
         return config;
     }
diff --git a/app/src/main/java/com/wireguard/config/InetAddresses.java b/app/src/main/java/com/wireguard/config/InetAddresses.java
index b7304cce..2cb43343 100644
--- a/app/src/main/java/com/wireguard/config/InetAddresses.java
+++ b/app/src/main/java/com/wireguard/config/InetAddresses.java
@@ -8,6 +8,9 @@ package com.wireguard.config;
 
 import android.support.annotation.Nullable;
 
+import com.wireguard.android.Application;
+import com.wireguard.android.R;
+
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 import java.net.InetAddress;
@@ -30,7 +33,7 @@ public final class InetAddresses {
 
     public static InetAddress parse(@Nullable final String address) {
         if (address == null || address.isEmpty())
-            throw new IllegalArgumentException("Empty address");
+            throw new IllegalArgumentException(Application.get().getString(R.string.tunnel_error_empty_inetaddress));
         try {
             return (InetAddress) PARSER_METHOD.invoke(null, address);
         } catch (final IllegalAccessException | InvocationTargetException e) {
diff --git a/app/src/main/java/com/wireguard/config/Interface.java b/app/src/main/java/com/wireguard/config/Interface.java
index eea1d18b..c43c2c5b 100644
--- a/app/src/main/java/com/wireguard/config/Interface.java
+++ b/app/src/main/java/com/wireguard/config/Interface.java
@@ -6,13 +6,16 @@
 
 package com.wireguard.config;
 
+import android.content.Context;
 import android.databinding.BaseObservable;
 import android.databinding.Bindable;
 import android.os.Parcel;
 import android.os.Parcelable;
 import android.support.annotation.Nullable;
 
+import com.wireguard.android.Application;
 import com.wireguard.android.BR;
+import com.wireguard.android.R;
 import com.wireguard.crypto.Keypair;
 
 import java.net.InetAddress;
@@ -31,6 +34,7 @@ public class Interface {
     @Nullable private Keypair keypair;
     private int listenPort;
     private int mtu;
+    private final Context context = Application.get();
 
     public Interface() {
         addressList = new ArrayList<>();
@@ -42,7 +46,7 @@ public class Interface {
         if (addresses != null && addresses.length > 0) {
             for (final String addr : addresses) {
                 if (addr.isEmpty())
-                    throw new IllegalArgumentException("Address is empty");
+                    throw new IllegalArgumentException(context.getString(R.string.tunnel_error_empty_interface_address));
                 addressList.add(new InetNetwork(addr));
             }
         }
@@ -141,7 +145,7 @@ public class Interface {
     public void parse(final String line) {
         final Attribute key = Attribute.match(line);
         if (key == null)
-            throw new IllegalArgumentException(String.format("Unable to parse line: \"%s\"", line));
+            throw new IllegalArgumentException(String.format(context.getString(R.string.tunnel_error_interface_parse_failed), line));
         switch (key) {
             case ADDRESS:
                 addAddresses(key.parseList(line));
diff --git a/app/src/main/java/com/wireguard/config/Peer.java b/app/src/main/java/com/wireguard/config/Peer.java
index b65f52cb..1ed615e6 100644
--- a/app/src/main/java/com/wireguard/config/Peer.java
+++ b/app/src/main/java/com/wireguard/config/Peer.java
@@ -6,6 +6,7 @@
 
 package com.wireguard.config;
 
+import android.content.Context;
 import android.databinding.BaseObservable;
 import android.databinding.Bindable;
 import android.os.Parcel;
@@ -13,6 +14,8 @@ import android.os.Parcelable;
 import android.support.annotation.Nullable;
 
 import com.android.databinding.library.baseAdapters.BR;
+import com.wireguard.android.Application;
+import com.wireguard.android.R;
 import com.wireguard.crypto.KeyEncoding;
 
 import java.net.Inet6Address;
@@ -38,6 +41,7 @@ public class Peer {
     private int persistentKeepalive;
     @Nullable private String preSharedKey;
     @Nullable private String publicKey;
+    private final Context context = Application.get();
 
     public Peer() {
         allowedIPsList = new ArrayList<>();
@@ -117,7 +121,7 @@ public class Peer {
     public void parse(final String line) {
         final Attribute key = Attribute.match(line);
         if (key == null)
-            throw new IllegalArgumentException(String.format("Unable to parse line: \"%s\"", line));
+            throw new IllegalArgumentException(context.getString(R.string.tunnel_error_interface_parse_failed, line));
         switch (key) {
             case ALLOWED_IPS:
                 addAllowedIPs(key.parseList(line));
@@ -152,7 +156,7 @@ public class Peer {
         if (endpoint != null && !endpoint.isEmpty()) {
             final InetSocketAddress constructedEndpoint;
             if (endpoint.indexOf('/') != -1 || endpoint.indexOf('?') != -1 || endpoint.indexOf('#') != -1)
-                throw new IllegalArgumentException("Forbidden characters in endpoint");
+                throw new IllegalArgumentException(context.getString(R.string.tunnel_error_forbidden_endpoint_chars));
             final URI uri;
             try {
                 uri = new URI("wg://" + endpoint);
@@ -253,7 +257,7 @@ public class Peer {
             parent.setPreSharedKey(preSharedKey);
             parent.setPublicKey(publicKey);
             if (parent.getPublicKey() == null)
-                throw new IllegalArgumentException("Peer public key may not be empty");
+                throw new IllegalArgumentException(Application.get().getString(R.string.tunnel_error_empty_peer_public_key));
             loadData(parent);
             notifyChange();
         }