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+/*
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+ * Nextcloud SingleSignOn
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+ *
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+ * @author Timo Triebensky
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+ * Copyright (C) 2021 Timo Triebensky
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+ *
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+ * This program is free software: you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License as published by
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+ * the Free Software Foundation, either version 3 of the License, or
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+ * (at your option) any later version.
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+ *
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+ * This program is distributed in the hope that it will be useful,
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+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ * GNU General Public License for more details.
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+ *
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+ * You should have received a copy of the GNU General Public License
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+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
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+ *
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+ * More information here: https://github.com/abeluck/android-streams-ipc
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+ *
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+ * ====================================================================
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+ *
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+ * The required methods of this class are copied and customized from PostMethod.
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+ */
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+
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+package com.nextcloud.android.sso;
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+
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+import org.apache.commons.httpclient.methods.ByteArrayRequestEntity;
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+import org.apache.commons.httpclient.methods.EntityEnclosingMethod;
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+import org.apache.commons.httpclient.methods.PostMethod;
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+import org.apache.commons.httpclient.methods.RequestEntity;
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+import org.apache.commons.httpclient.util.EncodingUtil;
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+
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+import java.util.Vector;
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+
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+public class PatchMethod extends PostMethod {
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+
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+ /**
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+ * The buffered request body consisting of <code>NameValuePair</code>s.
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+ */
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+ private Vector params = new Vector();
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+
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+ /**
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+ * No-arg constructor.
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+ */
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+ public PatchMethod() {
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+ super();
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+ }
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+
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+ /**
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+ * Constructor specifying a URI.
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+ *
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+ * @param uri either an absolute or relative URI
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+ */
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+ public PatchMethod(String uri) {
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+ super(uri);
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+ }
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+
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+ /**
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+ * Returns <tt>"PATCH"</tt>.
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+ *
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+ * @return <tt>"PATCH"</tt>
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+ * @since 2.0
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+ */
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+ @Override
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+ public String getName() {
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+ return "PATCH";
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+ }
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+
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+ /**
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+ * Returns <tt>true</tt> if there is a request body to be sent.
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+ *
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+ * @return boolean
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+ * @since 2.0beta1
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+ */
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+ protected boolean hasRequestContent() {
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+ if (!this.params.isEmpty()) {
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+ return true;
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+ } else {
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+ return super.hasRequestContent();
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+ }
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+ }
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+
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+ /**
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+ * Clears request body.
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+ *
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+ * @since 2.0beta1
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+ */
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+ protected void clearRequestBody() {
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+ this.params.clear();
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+ super.clearRequestBody();
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+ }
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+
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+ /**
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+ * Generates a request entity from the patch parameters, if present. Calls {@link
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+ * EntityEnclosingMethod#generateRequestBody()} if parameters have not been set.
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+ *
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+ * @since 3.0
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+ */
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+ protected RequestEntity generateRequestEntity() {
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+ if (!this.params.isEmpty()) {
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+ // Use a ByteArrayRequestEntity instead of a StringRequestEntity.
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+ // This is to avoid potential encoding issues. Form url encoded strings
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+ // are ASCII by definition but the content type may not be. Treating the content
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+ // as bytes allows us to keep the current charset without worrying about how
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+ // this charset will effect the encoding of the form url encoded string.
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+ String content = EncodingUtil.formUrlEncode(getParameters(), getRequestCharSet());
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+ ByteArrayRequestEntity entity = new ByteArrayRequestEntity(
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+ EncodingUtil.getAsciiBytes(content),
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+ FORM_URL_ENCODED_CONTENT_TYPE
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+ );
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+ return entity;
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+ } else {
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+ return super.generateRequestEntity();
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+ }
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+ }
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+}
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