84 lines
3.0 KiB
Java
84 lines
3.0 KiB
Java
/**
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*
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* Copyright 2017 Florian Schmaus.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.jivesoftware.smackx.ox;
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import java.io.IOException;
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import org.jivesoftware.smackx.ox.element.CryptElement;
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import org.jivesoftware.smackx.ox.element.OpenPgpContentElement;
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import org.jivesoftware.smackx.ox.element.SignElement;
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import org.jivesoftware.smackx.ox.element.SigncryptElement;
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import org.jivesoftware.smackx.ox.provider.OpenPgpContentElementProvider;
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import org.xmlpull.v1.XmlPullParserException;
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public class OpenPgpMessage {
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enum State {
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signcrypt,
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sign,
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crypt,
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;
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}
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private final String element;
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private final State state;
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private OpenPgpContentElement openPgpContentElement;
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public OpenPgpMessage(State state, String content) {
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this.element = content;
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this.state = state;
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}
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public OpenPgpContentElement getOpenPgpContentElement() throws XmlPullParserException, IOException {
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ensureOpenPgpContentElementSet();
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return openPgpContentElement;
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}
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private void ensureOpenPgpContentElementSet() throws XmlPullParserException, IOException {
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if (openPgpContentElement != null)
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return;
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openPgpContentElement = OpenPgpContentElementProvider.parseOpenPgpContentElement(element);
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switch (state) {
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case signcrypt:
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if (!(openPgpContentElement instanceof SigncryptElement)) {
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throw new IllegalStateException(
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"The used OpenPGP content element does not match the mode used in the raw OpenPGP message. Content element: "
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+ openPgpContentElement.getElementName() + ". Mode: " + state);
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}
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break;
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case sign:
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if (!(openPgpContentElement instanceof SignElement)) {
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throw new IllegalStateException(
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"The used OpenPGP content element does not match the mode used in the raw OpenPGP message. Content element: "
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+ openPgpContentElement.getElementName() + ". Mode: " + state);
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}
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break;
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case crypt:
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if (!(openPgpContentElement instanceof CryptElement)) {
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throw new IllegalStateException(
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"The used OpenPGP content element does not match the mode used in the raw OpenPGP message. Content element: "
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+ openPgpContentElement.getElementName() + ". Mode: " + state);
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}
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break;
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}
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}
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}
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