Merge the matrix-java-sdk due to it no longer maintained.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

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

@@ -0,0 +1,133 @@
+/*
+ * matrix-java-sdk - Matrix Client SDK for Java
+ * Copyright (C) 2017 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 io.kamax.matrix._MatrixContent;
+
+import org.apache.commons.lang3.StringUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.net.URI;
+import java.net.URL;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+import java.util.Optional;
+
+
+import okhttp3.Request;
+
+public class MatrixHttpContent extends AMatrixHttpClient implements _MatrixContent {
+
+    private Logger log = LoggerFactory.getLogger(MatrixHttpContent.class);
+    private final Pattern filenamePattern = Pattern.compile("filename=\"?([^\";]+)");
+    private URI address;
+
+    private MatrixHttpContentResult result;
+
+    private boolean loaded = false;
+    private boolean valid = false;
+
+    public MatrixHttpContent(MatrixClientContext context, URI address) {
+        super(context);
+        this.address = address;
+    }
+
+    // TODO switch a HTTP HEAD to fetch initial data, instead of loading in memory directly
+    private synchronized void load() {
+        if (loaded) {
+            return;
+        }
+
+        try {
+            if (!StringUtils.equalsIgnoreCase("mxc", address.getScheme())) {
+                log.debug("{} is not a supported protocol for avatars, ignoring", address.getScheme());
+            } else {
+                MatrixHttpRequest request = new MatrixHttpRequest(new Request.Builder().url(getPermaLink()));
+                result = executeContentRequest(request);
+                valid = result.isValid();
+            }
+
+        } catch (MatrixClientRequestException e) {
+            valid = false;
+        }
+        loaded = true;
+    }
+
+    @Override
+    public URI getAddress() {
+        return address;
+    }
+
+    @Override
+    public URL getPermaLink() {
+        return getMediaPathBuilder("download", address.getHost()).addEncodedPathSegments(address.getPath().substring(1))
+                .build().url();
+    }
+
+    @Override
+    public boolean isValid() {
+        load();
+
+        return valid;
+    }
+
+    @Override
+    public Optional<String> getType() {
+        load();
+
+        if (!isValid()) {
+            throw new IllegalStateException("This method should only be called, if valid is true.");
+        }
+        return result.getContentType();
+    }
+
+    @Override
+    public byte[] getData() {
+        load();
+
+        if (!isValid()) {
+            throw new IllegalStateException("This method should only be called, if valid is true.");
+        }
+        return result.getData();
+    }
+
+    @Override
+    public Optional<String> getFilename() {
+        load();
+
+        if (!isValid()) {
+            throw new IllegalStateException("This method should only be called, if valid is true.");
+        }
+
+        return result.getHeader("Content-Disposition").filter(l -> !l.isEmpty()).flatMap(l -> {
+            for (String v : l) {
+                Matcher m = filenamePattern.matcher(v);
+                if (m.find()) {
+                    return Optional.of(m.group(1));
+                }
+            }
+
+            return Optional.empty();
+        });
+    }
+
+}