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/*
* Copyright (C) 2008 The Android Open Source Project
*
* Licensed 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 com.android.emailcommon.internet;
import com.android.emailcommon.mail.BodyPart;
import com.android.emailcommon.mail.MessagingException;
import com.android.emailcommon.mail.Multipart;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
public class MimeMultipart extends Multipart {
protected String mPreamble;
protected String mContentType;
protected String mBoundary;
protected String mSubType;
public MimeMultipart() throws MessagingException {
mBoundary = generateBoundary();
setSubType("mixed");
}
public MimeMultipart(String contentType) throws MessagingException {
this.mContentType = contentType;
try {
mSubType = MimeUtility.getHeaderParameter(contentType, null).split("/")[1];
mBoundary = MimeUtility.getHeaderParameter(contentType, "boundary");
if (mBoundary == null) {
throw new MessagingException("MultiPart does not contain boundary: " + contentType);
}
} catch (Exception e) {
throw new MessagingException(
"Invalid MultiPart Content-Type; must contain subtype and boundary. ("
+ contentType + ")", e);
}
}
public String generateBoundary() {
StringBuffer sb = new StringBuffer();
sb.append("----");
for (int i = 0; i < 30; i++) {
sb.append(Integer.toString((int)(Math.random() * 35), 36));
}
return sb.toString().toUpperCase();
}
public String getPreamble() throws MessagingException {
return mPreamble;
}
public void setPreamble(String preamble) throws MessagingException {
this.mPreamble = preamble;
}
@Override
public String getContentType() throws MessagingException {
return mContentType;
}
public void setSubType(String subType) throws MessagingException {
this.mSubType = subType;
mContentType = String.format("multipart/%s; boundary=\"%s\"", subType, mBoundary);
}
public void writeTo(OutputStream out) throws IOException, MessagingException {
BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(out), 1024);
if (mPreamble != null) {
writer.write(mPreamble + "\r\n");
}
for (int i = 0, count = mParts.size(); i < count; i++) {
BodyPart bodyPart = mParts.get(i);
writer.write("--" + mBoundary + "\r\n");
writer.flush();
bodyPart.writeTo(out);
writer.write("\r\n");
}
writer.write("--" + mBoundary + "--\r\n");
writer.flush();
}
public InputStream getInputStream() throws MessagingException {
return null;
}
public String getSubTypeForTest() {
return mSubType;
}
}
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