public void FinishedPart()
{
if (jsonBuffer != null)
{
ParseJsonBuffer();
}
else
{
curAttachment.Finish();
String sha1String = curAttachment.SHA1DigestString();
attachmentsBySHA1Digest.Put(sha1String, curAttachment);
curAttachment = null;
}
}
public void FinishedPart()
{
if (jsonBuffer != null)
{
ParseJsonBuffer();
}
else
{
curAttachment.Finish();
var sha1String = curAttachment.SHA1DigestString();
Log.To.Sync.V(TAG, "{0} finished attachment #{1}: {2}", this, attachmentsByDigest.Count + 1, curAttachment);
attachmentsByDigest[sha1String] = curAttachment;
curAttachment = null;
}
}
private void RegisterAttachments()
{
int numAttachmentsInDoc = 0;
IDictionary <string, object> attachments = (IDictionary <string, object>)document.Get
("_attachments");
if (attachments == null)
{
return;
}
foreach (string attachmentName in attachments.Keys)
{
IDictionary <string, object> attachment = (IDictionary <string, object>)attachments
.Get(attachmentName);
int length = 0;
if (attachment.ContainsKey("length"))
{
length = ((int)attachment.Get("length"));
}
if (attachment.ContainsKey("encoded_length"))
{
length = ((int)attachment.Get("encoded_length"));
}
if (attachment.ContainsKey("follows") && ((bool)attachment.Get("follows")) == true)
{
// Check that each attachment in the JSON corresponds to an attachment MIME body.
// Look up the attachment by either its MIME Content-Disposition header or MD5 digest:
string digest = (string)attachment.Get("digest");
BlobStoreWriter writer = attachmentsByName.Get(attachmentName);
if (writer != null)
{
// Identified the MIME body by the filename in its Disposition header:
string actualDigest = writer.MD5DigestString();
if (digest != null && !digest.Equals(actualDigest) && !digest.Equals(writer.SHA1DigestString
()))
{
string errMsg = string.Format("Attachment '%s' has incorrect MD5 digest (%s; should be %s)"
, attachmentName, digest, actualDigest);
throw new InvalidOperationException(errMsg);
}
attachment.Put("digest", actualDigest);
}
else
{
if (digest != null)
{
writer = attachmentsByMd5Digest.Get(digest);
if (writer == null)
{
string errMsg = string.Format("Attachment '%s' does not appear in MIME body (%s; should be %s)"
, attachmentName);
throw new InvalidOperationException(errMsg);
}
}
else
{
if (attachments.Count == 1 && attachmentsByMd5Digest.Count == 1)
{
// Else there's only one attachment, so just assume it matches & use it:
writer = attachmentsByMd5Digest.Values.GetEnumerator().Next();
attachment.Put("digest", writer.MD5DigestString());
}
else
{
// No digest metatata, no filename in MIME body; give up:
string errMsg = string.Format("Attachment '%s' has no digest metadata; cannot identify MIME body"
, attachmentName);
throw new InvalidOperationException(errMsg);
}
}
}
// Check that the length matches:
if (writer.GetLength() != length)
{
string errMsg = string.Format("Attachment '%s' has incorrect length field %d (should be %d)"
, attachmentName, length, writer.GetLength());
throw new InvalidOperationException(errMsg);
}
++numAttachmentsInDoc;
}
else
{
if (attachment.ContainsKey("data") && length > 1000)
{
string msg = string.Format("Attachment '%s' sent inline (len=%d). Large attachments "
+ "should be sent in MIME parts for reduced memory overhead.", attachmentName);
Log.W(Database.Tag, msg);
}
}
}
if (numAttachmentsInDoc < attachmentsByMd5Digest.Count)
{
string msg = string.Format("More MIME bodies (%d) than attachments (%d) ", attachmentsByMd5Digest
.Count, numAttachmentsInDoc);
throw new InvalidOperationException(msg);
}
// hand over the (uninstalled) blobs to the database to remember:
database.RememberAttachmentWritersForDigests(attachmentsByMd5Digest);
}
