1 files changed, 219 insertions, 0 deletions
diff --git a/app/src/main/java/de/blinkt/openvpn/core/connection/Connection.java b/app/src/main/java/de/blinkt/openvpn/core/connection/Connection.java
new file mode 100644
index 00000000..a318e55d
--- /dev/null
+++ b/app/src/main/java/de/blinkt/openvpn/core/connection/Connection.java
@@ -0,0 +1,219 @@
+/*
+ * Copyright (c) 2012-2016 Arne Schwabe
+ * Distributed under the GNU GPL v2 with additional terms. For full terms see the file doc/LICENSE.txt
+ */
+
+package de.blinkt.openvpn.core.connection;
+
+import android.text.TextUtils;
+
+import java.io.Serializable;
+import java.util.Locale;
+
+public abstract class Connection implements Serializable, Cloneable {
+    private String mServerName = "openvpn.example.com";
+    private String mServerPort = "1194";
+    private boolean mUseUdp = true;
+    private String mCustomConfiguration = "";
+    private boolean mUseCustomConfig = false;
+    private boolean mEnabled = true;
+    private int mConnectTimeout = 0;
+    private static final int CONNECTION_DEFAULT_TIMEOUT = 120;
+    private ProxyType mProxyType = ProxyType.NONE;
+    private String mProxyName = "proxy.example.com";
+    private String mProxyPort = "8080";
+
+    private boolean mUseProxyAuth;
+    private String mProxyAuthUser = null;
+    private String mProxyAuthPassword = null;
+
+    public enum ProxyType {
+        NONE,
+        HTTP,
+        SOCKS5,
+        ORBOT
+    }
+
+    public enum TransportType {
+        OBFS4("obfs4"),
+        OPENVPN("openvpn");
+
+        String transport;
+
+        TransportType(String transportType) {
+            this.transport = transportType;
+        }
+
+        @Override
+        public String toString() {
+            return transport;
+        }
+    }
+
+
+    private static final long serialVersionUID = 92031902903829089L;
+
+
+    public String getConnectionBlock(boolean isOpenVPN3) {
+        String cfg = "";
+
+        // Server Address
+        cfg += "remote ";
+        cfg += mServerName;
+        cfg += " ";
+        cfg += mServerPort;
+        if (mUseUdp)
+            cfg += " udp\n";
+        else
+            cfg += " tcp-client\n";
+
+        if (mConnectTimeout != 0)
+            cfg += String.format(Locale.US, " connect-timeout  %d\n", mConnectTimeout);
+
+        // OpenVPN 2.x manages proxy connection via management interface
+        if ((isOpenVPN3 || usesExtraProxyOptions()) && mProxyType == ProxyType.HTTP)
+        {
+            cfg+=String.format(Locale.US,"http-proxy %s %s\n", mProxyName, mProxyPort);
+            if (mUseProxyAuth)
+                cfg+=String.format(Locale.US, "<http-proxy-user-pass>\n%s\n%s\n</http-proxy-user-pass>\n", mProxyAuthUser, mProxyAuthPassword);
+        }
+        if (usesExtraProxyOptions() && mProxyType == ProxyType.SOCKS5) {
+            cfg+=String.format(Locale.US,"socks-proxy %s %s\n", mProxyName, mProxyPort);
+        }
+
+        if (!TextUtils.isEmpty(mCustomConfiguration) && mUseCustomConfig) {
+            cfg += mCustomConfiguration;
+            cfg += "\n";
+        }
+
+
+        return cfg;
+    }
+
+    public boolean usesExtraProxyOptions() {
+        return (mUseCustomConfig && mCustomConfiguration.contains("http-proxy-option "));
+    }
+
+
+    @Override
+    public Connection clone() throws CloneNotSupportedException {
+        return (Connection) super.clone();
+    }
+
+    public boolean isOnlyRemote() {
+        return TextUtils.isEmpty(mCustomConfiguration) || !mUseCustomConfig;
+    }
+
+    public int getTimeout() {
+        if (mConnectTimeout <= 0)
+            return CONNECTION_DEFAULT_TIMEOUT;
+        else
+            return mConnectTimeout;
+    }
+
+    public String getServerName() {
+        return mServerName;
+    }
+
+    public void setServerName(String mServerName) {
+        this.mServerName = mServerName;
+    }
+
+    public String getServerPort() {
+        return mServerPort;
+    }
+
+    public void setServerPort(String serverPort) {
+        this.mServerPort = serverPort;
+    }
+
+    public boolean isUseUdp() {
+        return mUseUdp;
+    }
+
+    public void setUseUdp(boolean useUdp) {
+        this.mUseUdp = useUdp;
+    }
+
+    public String getCustomConfiguration() {
+        return mCustomConfiguration;
+    }
+
+    public void setCustomConfiguration(String customConfiguration) {
+        this.mCustomConfiguration = customConfiguration;
+    }
+
+    public boolean isUseCustomConfig() {
+        return mUseCustomConfig;
+    }
+
+    public void setUseCustomConfig(boolean useCustomConfig) {
+        this.mUseCustomConfig = useCustomConfig;
+    }
+
+    public boolean isEnabled() {
+        return mEnabled;
+    }
+
+    public void setEnabled(boolean enabled) {
+        this.mEnabled = enabled;
+    }
+
+    public int getConnectTimeout() {
+        return mConnectTimeout;
+    }
+
+    public void setConnectTimeout(int connectTimeout) {
+        this.mConnectTimeout = connectTimeout;
+    }
+
+    public ProxyType getProxyType() {
+        return mProxyType;
+    }
+
+    public void setProxyType(ProxyType proxyType) {
+        this.mProxyType = proxyType;
+    }
+
+    public String getProxyName() {
+        return mProxyName;
+    }
+
+    public void setProxyName(String proxyName) {
+        this.mProxyName = proxyName;
+    }
+
+    public String getProxyPort() {
+        return mProxyPort;
+    }
+
+    public void setProxyPort(String proxyPort) {
+        this.mProxyPort = proxyPort;
+    }
+
+    public boolean isUseProxyAuth() {
+        return mUseProxyAuth;
+    }
+
+    public void setUseProxyAuth(boolean useProxyAuth) {
+        this.mUseProxyAuth = useProxyAuth;
+    }
+
+    public String getProxyAuthUser() {
+        return mProxyAuthUser;
+    }
+
+    public void setProxyAuthUser(String proxyAuthUser) {
+        this.mProxyAuthUser = proxyAuthUser;
+    }
+
+    public String getProxyAuthPassword() {
+        return mProxyAuthPassword;
+    }
+
+    public void setProxyAuthPassword(String proxyAuthPassword) {
+        this.mProxyAuthPassword = proxyAuthPassword;
+    }
+
+    public abstract TransportType getTransportType();
+}