Merge the matrix-java-sdk due to it no longer maintained. Remove thirdparty repositories.

src/main/java/io/kamax/matrix/client/WellKnownAutoDiscoverySettings.java

@@ -0,0 +1,138 @@
+/*
+ * matrix-java-sdk - Matrix Client SDK for Java
+ * Copyright (C) 2018 Kamax Sarl
+ *
+ * https://www.kamax.io/
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package io.kamax.matrix.client;
+
+import com.google.gson.JsonArray;
+import com.google.gson.JsonObject;
+import com.google.gson.JsonParseException;
+
+import io.kamax.matrix.json.GsonUtil;
+import io.kamax.matrix.json.InvalidJsonException;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.Optional;
+
+public class WellKnownAutoDiscoverySettings implements _AutoDiscoverySettings {
+
+    private final Logger log = LoggerFactory.getLogger(WellKnownAutoDiscoverySettings.class);
+
+    private JsonObject raw;
+
+    private List<URL> hsBaseUrls = new ArrayList<>();
+    private List<URL> isBaseUrls = new ArrayList<>();
+
+    /**
+     * Build .well-known auto-discovery settings from a .well-known source.
+     *
+     * @param raw
+     *            The raw JSON data
+     * @throws IllegalArgumentException
+     *             if the data is invalid and couldn't be parsed.
+     */
+    public WellKnownAutoDiscoverySettings(String raw) {
+        try {
+            setRaw(GsonUtil.parseObj(raw));
+        } catch (JsonParseException | InvalidJsonException e) {
+            throw new IllegalArgumentException("Invalid JSON data for .well-known string");
+        }
+    }
+
+    private void setRaw(JsonObject raw) {
+        this.raw = raw;
+        process();
+    }
+
+    private Optional<URL> getUrl(String url) {
+        try {
+            return Optional.of(new URL(url));
+        } catch (MalformedURLException e) {
+            log.warn("Ignoring invalid Base URL entry in well-known: {} - {}", url, e.getMessage());
+            return Optional.empty();
+        }
+    }
+
+    private List<URL> getUrls(JsonArray array) {
+        List<URL> urls = new ArrayList<>();
+
+        array.forEach(el -> {
+            if (!el.isJsonPrimitive()) {
+                log.warn("Ignoring invalid Base URL entry in well-known: {} - Not a string", GsonUtil.get().toJson(el));
+                return;
+            }
+
+            getUrl(el.getAsString()).ifPresent(urls::add);
+        });
+
+        return urls;
+    }
+
+    private List<URL> processUrls(JsonObject base, String key) {
+        List<URL> urls = new ArrayList<>();
+
+        GsonUtil.findObj(base, key).ifPresent(cfg -> {
+            log.info("Found data");
+
+            GsonUtil.findArray(cfg, "base_urls").ifPresent(arr -> {
+                log.info("Found base URL(s)");
+                urls.addAll(getUrls(arr));
+            });
+
+            if (urls.isEmpty()) {
+                GsonUtil.findString(cfg, "base_url").flatMap(this::getUrl).ifPresent(urls::add);
+            }
+        });
+
+        return urls;
+    }
+
+    private void process() {
+        log.info("Processing Homeserver Base URLs");
+        hsBaseUrls = processUrls(raw, "m.homeserver");
+        log.info("Found {} valid URL(s)", hsBaseUrls.size());
+
+        log.info("Processing Identity server Base URLs");
+        isBaseUrls = processUrls(raw, "m.identity_server");
+        log.info("Found {} valid URL(s)", isBaseUrls.size());
+    }
+
+    @Override
+    public JsonObject getRaw() {
+        return raw;
+    }
+
+    @Override
+    public List<URL> getHsBaseUrls() {
+        return Collections.unmodifiableList(hsBaseUrls);
+    }
+
+    @Override
+    public List<URL> getIsBaseUrls() {
+        return Collections.unmodifiableList(isBaseUrls);
+    }
+
+}