Example usage for javax.mail.internet MimePart addHeader

Introduction

In this page you can find the example usage for javax.mail.internet MimePart addHeader.

Prototype

public void addHeader(String header_name, String header_value) throws MessagingException;

Source Link

Document

Add this value to the existing values for this header_name.

Usage

From source file:mitm.common.mail.MailUtils.java

/**
 * Converts any 8bit encoded parts to 7bit. Returns true if a part (or all parts) were converted from
 * 8bit to 7bit.//from w w w .  j a  v a 2s .  c  o m
 * 
 * @param part
 * @throws MessagingException
 */
public static boolean convertTo7Bit(MimePart part) throws MessagingException, IOException {
    boolean converted = false;

    if (part.isMimeType("multipart/*")) {
        Multipart parts = (Multipart) part.getContent();

        int count = parts.getCount();

        for (int i = 0; i < count; i++) {
            boolean partConverted = convertTo7Bit((MimePart) parts.getBodyPart(i));

            if (partConverted) {
                converted = true;
            }
        }
    } else if ("8bit".equalsIgnoreCase(part.getEncoding())) {
        String encoding = part.isMimeType("text/*") ? "quoted-printable" : "base64";

        /*
         * We need to use a ByteArrayDataSource to make sure it will always be encoded
         */
        part.setDataHandler(
                new DataHandler(new ByteArrayDataSource(part.getInputStream(), part.getContentType())));

        part.setHeader("Content-Transfer-Encoding", encoding);
        part.addHeader("X-MIME-Autoconverted", "from 8bit to " + encoding + " by Djigzo");

        converted = true;
    }

    return converted;
}

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