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* Licensed to the Apache Software Foundation (ASF) under one *
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* distributed with this work for additional information *
* regarding copyright ownership. The ASF licenses this file *
* to you under the Apache License, Version 2.0 (the *
* "License"); you may not use this file except in compliance *
* with the License. You may obtain a copy of the License at *
* *
* http://www.apache.org/licenses/LICENSE-2.0 *
* *
* Unless required by applicable law or agreed to in writing, *
* software distributed under the License is distributed on an *
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY *
* KIND, either express or implied. See the License for the *
* specific language governing permissions and limitations *
* under the License. *
****************************************************************/
package org.apache.james.mime4j.field;
import java.util.Collections;
import java.util.HashMap;
import java.util.Locale;
import java.util.Map;
import org.apache.james.mime4j.codec.DecodeMonitor;
import org.apache.james.mime4j.dom.FieldParser;
import org.apache.james.mime4j.dom.field.ContentTypeField;
import org.apache.james.mime4j.stream.Field;
import org.apache.james.mime4j.stream.NameValuePair;
import org.apache.james.mime4j.stream.RawBody;
import org.apache.james.mime4j.stream.RawField;
import org.apache.james.mime4j.stream.RawFieldParser;
/**
* Represents a <code>Content-Type</code> field.
*/
public class ContentTypeFieldLenientImpl extends AbstractField implements ContentTypeField {
private boolean parsed = false;
private String mimeType = null;
private String mediaType = null;
private String subType = null;
private Map<String, String> parameters = new HashMap<String, String>();
ContentTypeFieldLenientImpl(final Field rawField, final DecodeMonitor monitor) {
super(rawField, monitor);
}
public String getMimeType() {
if (!parsed) {
parse();
}
return mimeType;
}
public String getMediaType() {
if (!parsed) {
parse();
}
return mediaType;
}
public String getSubType() {
if (!parsed) {
parse();
}
return subType;
}
public String getParameter(String name) {
if (!parsed) {
parse();
}
return parameters.get(name.toLowerCase());
}
public Map<String, String> getParameters() {
if (!parsed) {
parse();
}
return Collections.unmodifiableMap(parameters);
}
public boolean isMimeType(String mimeType) {
if (!parsed) {
parse();
}
return this.mimeType != null && this.mimeType.equalsIgnoreCase(mimeType);
}
public boolean isMultipart() {
if (!parsed) {
parse();
}
return this.mimeType != null && mimeType.startsWith(TYPE_MULTIPART_PREFIX);
}
public String getBoundary() {
return getParameter(PARAM_BOUNDARY);
}
public String getCharset() {
return getParameter(PARAM_CHARSET);
}
private void parse() {
parsed = true;
RawField f = getRawField();
RawBody body = RawFieldParser.DEFAULT.parseRawBody(f);
String main = body.getValue();
String type = null;
String subtype = null;
if (main != null) {
main = main.toLowerCase().trim();
int index = main.indexOf('/');
boolean valid = false;
if (index != -1) {
type = main.substring(0, index).trim();
subtype = main.substring(index + 1).trim();
if (type.length() > 0 && subtype.length() > 0) {
main = type + "/" + subtype;
valid = true;
}
}
if (!valid) {
if (monitor.isListening()) {
monitor.warn("Invalid Content-Type: " + body, "Content-Type value ignored");
}
main = null;
type = null;
subtype = null;
}
}
mimeType = main;
mediaType = type;
subType = subtype;
parameters.clear();
for (NameValuePair nmp: body.getParams()) {
String name = nmp.getName().toLowerCase(Locale.US);
parameters.put(name, nmp.getValue());
}
}
public static final FieldParser<ContentTypeField> PARSER = new FieldParser<ContentTypeField>() {
public ContentTypeField parse(final Field rawField, final DecodeMonitor monitor) {
return new ContentTypeFieldLenientImpl(rawField, monitor);
}
};
}