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Include larger text content in mime tree

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This commit is contained in:
Andris Reinman 2017-03-11 16:35:12 +02:00
parent 44012e79a8
commit 8638e8bb86
1 changed files with 22 additions and 6 deletions
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28
imap-core/lib/indexer/indexer.js
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@ -242,15 +242,25 @@ class Indexer {
}
};
if (node.body && node.size > sizeLimit) {
let contentType = (node.parsedHeader['content-type'] && node.parsedHeader['content-type'].value || 'application/octet-stream').toLowerCase().trim();
let disposition = (node.parsedHeader['content-disposition'] && node.parsedHeader['content-disposition'].value || '').toLowerCase().trim() || false;
let curSizeLimit = sizeLimit;
// If the current node is HTML or Plaintext then allow larger content included in the mime tree
if (['text/plain', 'text/html'].includes(contentType) && (!disposition || disposition === 'inline')) {
curSizeLimit = Math.max(sizeLimit, 200 * 1024);
}
if (node.body && node.size > curSizeLimit) {
let attachmentId = new ObjectID();
let contentType = node.parsedHeader['content-type'] && node.parsedHeader['content-type'].value || 'application/octet-stream';
let fileName = (node.parsedHeader['content-disposition'] && node.parsedHeader['content-disposition'].params && node.parsedHeader['content-disposition'].params.filename) || (node.parsedHeader['content-type'] && node.parsedHeader['content-type'].params && node.parsedHeader['content-type'].params.name) || false;
let transferEncoding = node.parsedHeader['content-transfer-encoding'] || '7bit';
let fileName = (node.parsedHeader['content-disposition'] && node.parsedHeader['content-disposition'].params && node.parsedHeader['content-disposition'].params.filename) || (node.parsedHeader['content-type'] && node.parsedHeader['content-type'].params && node.parsedHeader['content-type'].params.name) || false;
if (fileName) {
try {
fileName = libmime.decodeWords(fileName);
fileName = libmime.decodeWords(fileName).trim();
} catch (E) {
// failed to parse filename, keep as is (most probably an unknown charset is used)
}
@ -261,11 +271,17 @@ class Indexer {
fsync: true,
content_type: contentType,
metadata: {
// if we copy the same message to other mailboxes then instead
// of copying attachments we add a pointer to the new message here
messages: [messageId],
// decoded filename to display in a web client or API
fileName,
// content-type for the attachment
contentType,
transferEncoding,
created: new Date()
// is it really an attachment? maybe it's a very long text part?
disposition,
// how to decode contents if a webclient or API asks for the attachment
transferEncoding
}
});