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package moe.yuuta.dn42peering.manage;
import com.wireguard.crypto.Key;
import com.wireguard.crypto.KeyFormatException;
import edazdarevic.commons.net.CIDRUtils;
import io.vertx.core.AsyncResult;
import io.vertx.core.Future;
import io.vertx.core.Handler;
import io.vertx.core.buffer.Buffer;
import io.vertx.core.json.JsonObject;
import io.vertx.ext.web.RoutingContext;
import io.vertx.ext.web.common.template.TemplateEngine;
import moe.yuuta.dn42peering.node.INodeService;
import moe.yuuta.dn42peering.node.Node;
import moe.yuuta.dn42peering.peer.Peer;
import moe.yuuta.dn42peering.peer.ProvisionStatus;
import moe.yuuta.dn42peering.portal.FormException;
import org.apache.commons.validator.routines.InetAddressValidator;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import java.io.IOException;
import java.net.Inet6Address;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
import static moe.yuuta.dn42peering.portal.RenderingUtils.getGeneralRenderingHandler;
class ManagementUI {
public static void renderIndex(@Nonnull TemplateEngine engine,
@Nonnull String asn, @Nonnull List<Peer> peers,
@Nonnull RoutingContext ctx) {
renderIndex(engine, asn, peers, getGeneralRenderingHandler(ctx));
}
public static void renderIndex(@Nonnull TemplateEngine engine,
@Nonnull String asn, @Nonnull List<Peer> peers,
@Nonnull Handler<AsyncResult<Buffer>> handler) {
final Map<String, Object> root = new HashMap<>();
root.put("asn", asn);
root.put("peers", peers.stream()
.map(peer -> {
final Map<String, Object> map = new HashMap<>();
map.put("id", peer.getId());
map.put("ipv4", peer.getIpv4());
map.put("ipv6", peer.getIpv6());
map.put("type", peer.getType());
map.put("provisionStatus", peer.getProvisionStatus());
return map;
})
.collect(Collectors.toList()));
engine.render(root, "manage/index.ftlh", handler);
}
public static void renderForm(@Nonnull TemplateEngine engine,
@Nonnull INodeService nodeService,
boolean newForm,
@Nonnull String asn, @Nullable Peer peer, @Nullable List<String> errors,
@Nonnull RoutingContext ctx) {
renderForm(engine, nodeService, newForm, asn, peer, errors, getGeneralRenderingHandler(ctx));
}
@SuppressWarnings("unchecked")
public static void renderForm(@Nonnull TemplateEngine engine,
@Nonnull INodeService nodeService,
boolean newForm,
@Nonnull String asn, @Nullable Peer peer, @Nullable List<String> errors,
@Nonnull Handler<AsyncResult<Buffer>> handler) {
Future.future(nodeService::listNodes)
.compose(list -> {
final Map<String, Object> root = new HashMap<>();
root.put("asn", asn);
root.put("nodes", list.stream()
.map(node -> {
final Map<String, Object> map = new HashMap<>(10);
map.put("id", node.getId());
map.put("name", node.getName());
map.put("public_ip", node.getPublicIp());
map.put("notice", node.getNotice());
map.put("asn", node.getAsn());
map.put("vpn_types", node.getSupportedVPNTypes());
return map;
})
.collect(Collectors.toList()));
if (peer != null) {
root.put("ipv4", peer.getIpv4());
root.put("ipv6", peer.getIpv6());
switch (peer.getType()) {
case WIREGUARD:
root.put("typeWireguard", true);
break;
}
root.put("wgEndpoint", peer.getWgEndpoint());
root.put("wgEndpointPort", peer.getWgEndpointPort());
root.put("wgPubkey", peer.getWgPeerPubkey());
root.put("mpbgp", peer.isMpbgp());
root.put("node_checked", peer.getNode());
root.put("id", peer.getId());
} else {
root.put("typeWireguard", true);
root.put("mpbgp", false);
root.put("node_checked", ((List<Map<String, Object>>)root.get("nodes")).get(0).get("id"));
}
if(!newForm && peer != null)
root.put("action", "/manage/edit?id=" + peer.getId());
else
root.put("action", "/manage/new");
root.put("errors", errors);
return engine.render(root, newForm ? "manage/new.ftlh" : "manage/edit.ftlh");
})
.onComplete(handler);
}
public static void renderChangepw(@Nonnull TemplateEngine engine,
@Nonnull String asn, @Nullable List<String> errors,
@Nonnull RoutingContext ctx) {
renderChangepw(engine, asn, errors, getGeneralRenderingHandler(ctx));
}
public static void renderChangepw(@Nonnull TemplateEngine engine,
@Nonnull String asn, @Nullable List<String> errors,
@Nonnull Handler<AsyncResult<Buffer>> handler) {
final Map<String, Object> root = new HashMap<>();
root.put("asn", asn);
root.put("errors", errors);
engine.render(root, "manage/changepw.ftlh", handler);
}
public static void renderDA(@Nonnull TemplateEngine engine,
@Nonnull String asn, @Nullable List<String> errors,
@Nonnull RoutingContext ctx) {
renderDA(engine, asn, errors, getGeneralRenderingHandler(ctx));
}
public static void renderDA(@Nonnull TemplateEngine engine,
@Nonnull String asn, @Nullable List<String> errors,
@Nonnull Handler<AsyncResult<Buffer>> handler) {
final Map<String, Object> root = new HashMap<>();
root.put("asn", asn);
root.put("errors", errors);
engine.render(root, "manage/delete.ftlh", handler);
}
public static void renderShowConfig(@Nonnull INodeService nodeService,
@Nonnull TemplateEngine engine,
@Nonnull Peer peer,
@Nonnull RoutingContext ctx) {
renderShowConfig(nodeService, engine, peer).onComplete(getGeneralRenderingHandler(ctx));
}
@Nonnull
public static Future<Buffer> renderShowConfig(@Nonnull INodeService nodeService,
@Nonnull TemplateEngine engine,
@Nonnull Peer peer) {
return Future.<Node>future(f -> nodeService.getNode(peer.getNode(), f))
.compose(node -> {
final Map<String, Object> root = new HashMap<>();
root.put("ipv4", peer.getIpv4());
root.put("ipv6", peer.getIpv6());
switch (peer.getType()) {
case WIREGUARD:
root.put("typeWireguard", true);
break;
}
root.put("wgPort", peer.calcWireGuardPort());
root.put("wgEndpoint", peer.getWgEndpoint());
root.put("wgEndpointPort", peer.getWgEndpointPort());
root.put("wgPresharedSecret", peer.getWgPresharedSecret());
root.put("wgSelfPubkey", peer.getWgSelfPubkey());
root.put("mpbgp", peer.isMpbgp());
root.put("peer_type", peer.getType());
root.put("peer_ipv4", peer.getIpv4());
root.put("peer_ipv6", peer.getIpv6());
if(peer.getWgEndpoint() != null) {
root.put("peer_wg_listen_port", peer.getWgEndpointPort());
}
if(node == null) {
root.put("ipv4", "This node is currently down! Edit the peer to choose another one.");
root.put("ipv6", "This node is currently down! Edit the peer to choose another one.");
root.put("asn", "This node is currently down! Edit the peer to choose another one.");
root.put("endpoint", "This node is currently down! Edit the peer to choose another one.");
root.put("show_example_config", false);
} else {
root.put("show_example_config", true);
root.put("ipv4", node.getDn42Ip4());
try {
if(peer.isIPv6LinkLocal()) {
root.put("ipv6", node.getDn42Ip6());
root.put("peer_link_local", true);
} else {
root.put("ipv6", node.getDn42Ip6NonLL());
root.put("peer_link_local", false);
}
} catch (IOException e) {
return Future.failedFuture(e);
}
root.put("asn", node.getAsn().substring(2));
root.put("endpoint", node.getPublicIp());
}
return engine.render(root, "manage/showconf.ftlh");
});
}
@Nonnull
public static Future<Peer> parseForm(@Nonnull INodeService nodeService,
@Nonnull JsonObject form) {
// Parse form
int nodeId = -1;
if (form.containsKey("node")) {
try {
nodeId = Integer.parseInt(form.getString("node"));
} catch (NumberFormatException ignored) {
}
if(nodeId == -1) {
return Future.failedFuture(new FormException("The node selection is invalid."));
}
}
int n = nodeId;
return Future.<Node>future(f -> nodeService.getNode(n, f))
.compose(node -> {
try {
final List<String> errors = new ArrayList<>(10);
if(node == null) {
errors.add("The node selection is invalid.");
}
Peer.VPNType type = null;
if (form.containsKey("vpn")) {
final String rawVPN = form.getString("vpn");
if (rawVPN == null) {
errors.add("Tunneling type is not specified.");
} else
switch (rawVPN) {
case "wg":
type = Peer.VPNType.WIREGUARD;
break;
default:
errors.add("Tunneling type is unexpected.");
break;
}
} else {
errors.add("Tunneling type is not specified.");
}
String ipv4 = null;
if (form.containsKey("ipv4")) {
ipv4 = form.getString("ipv4");
if (ipv4 == null || ipv4.isEmpty()) {
errors.add("IPv4 address is not specified.");
ipv4 = null; // Non-null but empty values could cause problems.
} else {
if (InetAddressValidator.getInstance().isValidInet4Address(ipv4)) {
if (!new CIDRUtils("172.20.0.0/14").isInRange(ipv4)) {
errors.add("IPv4 address is illegal. It must be a dn42 IPv4 address (172.20.x.x to 172.23.x.x).");
}
} else
errors.add("IPv4 address is illegal. Cannot parse your address.");
}
} else {
errors.add("IPv4 address is not specified.");
}
String ipv6 = null;
if (form.containsKey("ipv6")) {
ipv6 = form.getString("ipv6");
if (ipv6 != null && !ipv6.isEmpty()) {
if (InetAddressValidator.getInstance().isValidInet6Address(ipv6)) {
if (!new CIDRUtils("fd00::/8").isInRange(ipv6) &&
!Inet6Address.getByName(ipv6).isLinkLocalAddress()) {
errors.add("IPv6 address is illegal. It must be a dn42 or link-local IPv6 address.");
}
ipv6 = ipv6.replaceAll("((?::0\\b){2,}):?(?!\\S*\\b\\1:0\\b)(\\S*)", "::$2");
} else
errors.add("IPv6 address is illegal. Cannot parse your address.");
} else {
ipv6 = null; // Non-null but empty values could cause problems.
}
}
boolean mpbgp = false;
if (form.containsKey("mpbgp")) {
if (ipv6 == null) {
errors.add("MP-BGP cannot be enabled if you do not have a valid IPv6 address.");
} else {
mpbgp = true;
}
}
String wgEndpoint = null;
boolean wgEndpointCorrect = false;
if (form.containsKey("wg_endpoint")) {
if (type == Peer.VPNType.WIREGUARD) {
wgEndpoint = form.getString("wg_endpoint");
if (wgEndpoint != null && !wgEndpoint.isEmpty()) {
if (InetAddressValidator.getInstance().isValidInet4Address(wgEndpoint)) {
if (new CIDRUtils("10.0.0.0/8").isInRange(wgEndpoint) ||
new CIDRUtils("192.168.0.0/16").isInRange(wgEndpoint) ||
new CIDRUtils("172.16.0.0/23").isInRange(wgEndpoint)) {
errors.add("WireGuard EndPoint is illegal. It must not be an internal address.");
} else {
wgEndpointCorrect = true;
}
} else
errors.add("WireGuard EndPoint is illegal. Cannot parse your address.");
} else {
wgEndpoint = null; // Non-null but empty values could cause problems.
}
} else {
errors.add("WireGuard tunneling is not selected but WireGuard Endpoint configuration appears.");
}
}
Integer wgEndpointPort = null;
if (form.containsKey("wg_endpoint_port")) {
if (type == Peer.VPNType.WIREGUARD) {
final String rawPort = form.getString("wg_endpoint_port");
if(rawPort != null && !rawPort.isEmpty()) {
if (wgEndpointCorrect) {
try {
wgEndpointPort = Integer.parseInt(rawPort);
if (wgEndpointPort < 0 || wgEndpointPort > 65535) {
errors.add("WireGuard EndPoint port must be in UDP port range.");
}
} catch (NumberFormatException | NullPointerException ignored) {
errors.add("WireGuard EndPoint port is not valid. It must be a number.");
}
} else {
errors.add("WireGuard EndPoint IP is not specified or invalid, but port is specified.");
}
}
} else {
errors.add("WireGuard tunneling is not selected but WireGuard Endpoint configuration appears.");
}
}
// When user specified the endpoint without the port.
if(type == Peer.VPNType.WIREGUARD &&
wgEndpointCorrect &&
wgEndpointPort == null) {
errors.add("WireGuard EndPoint IP is specified, but the port is missing.");
}
String wgPubKey = null;
if (form.containsKey("wg_pubkey")) {
if (type == Peer.VPNType.WIREGUARD) {
wgPubKey = form.getString("wg_pubkey");
if (wgPubKey == null || wgPubKey.isEmpty()) {
errors.add("WireGuard public key is not specified.");
wgPubKey = null; // Non-null but empty values could cause problems.
} else {
try {
Key.fromBase64(wgPubKey);
} catch (KeyFormatException e) {
errors.add("WireGuard public key is not valid.");
}
}
} else {
errors.add("WireGuard tunneling is not selected but WireGuard public key appears.");
}
} else {
if (type == Peer.VPNType.WIREGUARD) {
errors.add("WireGuard public key is not specified.");
}
}
if(node != null && !node.getSupportedVPNTypes().contains(type)) {
errors.add(String.format("Node %s does not support VPN type %s.", node.getName(),
type));
}
Peer peer;
if (type == Peer.VPNType.WIREGUARD) {
peer = new Peer(ipv4, ipv6, wgEndpoint, wgEndpointPort, wgPubKey, mpbgp, n);
} else {
peer = new Peer(
-1,
type,
null, /* ASN: To be filled later */
ipv4,
ipv6,
wgEndpoint,
wgEndpointPort,
null, /* Self public key: Generate later if needed */
null, /* Self private key: Generate later if needed */
wgPubKey,
null /* Preshared Secret: Generate later if needed */,
ProvisionStatus.NOT_PROVISIONED,
mpbgp,
n
);
}
if(errors.isEmpty()) {
return Future.succeededFuture(peer);
} else {
return Future.failedFuture(new FormException(peer, errors.toArray(new String[]{})));
}
} catch (IOException e) {
return Future.failedFuture(e);
}
});
}
}
|
