Messagelib

multipartencrypted.cpp
1 /*
2  SPDX-FileCopyrightText: 2016 Sandro KnauƟ <[email protected]>
3 
4  SPDX-License-Identifier: LGPL-2.0-or-later
5 */
6 
7 #include "multipartencrypted.h"
8 
9 #include "utils.h"
10 
11 #include "messagepart.h"
12 #include "objecttreeparser.h"
13 
14 #include <KMime/Content>
15 
16 #include <QGpgME/Protocol>
17 
18 #include "mimetreeparser_debug.h"
19 
20 using namespace MimeTreeParser;
21 
22 const MultiPartEncryptedBodyPartFormatter *MultiPartEncryptedBodyPartFormatter::self;
23 
24 const Interface::BodyPartFormatter *MultiPartEncryptedBodyPartFormatter::create()
25 {
26  if (!self) {
27  self = new MultiPartEncryptedBodyPartFormatter();
28  }
29  return self;
30 }
31 
32 MessagePart::Ptr MultiPartEncryptedBodyPartFormatter::process(Interface::BodyPart &part) const
33 {
34  KMime::Content *node = part.content();
35 
36  if (node->contents().isEmpty()) {
37  Q_ASSERT(false);
38  return {};
39  }
40 
41  const QGpgME::Protocol *useThisCryptProto = nullptr;
42 
43  /*
44  ATTENTION: This code is to be replaced by the new 'auto-detect' feature. --------------------------------------
45  */
46  KMime::Content *data = findTypeInDirectChilds(node, "application/octet-stream");
47  if (data) {
48  useThisCryptProto = QGpgME::openpgp();
49  }
50  if (!data) {
51  data = findTypeInDirectChilds(node, "application/pkcs7-mime");
52  if (data) {
53  useThisCryptProto = QGpgME::smime();
54  }
55  }
56  /*
57  ---------------------------------------------------------------------------------------------------------------
58  */
59 
60  if (!data) {
61  return MessagePart::Ptr(new MimeMessagePart(part.objectTreeParser(), node->contents().at(0), false));
62  }
63 
64  part.nodeHelper()->setEncryptionState(node, KMMsgFullyEncrypted);
65 
67  new EncryptedMessagePart(part.objectTreeParser(), data->decodedText(), useThisCryptProto, part.nodeHelper()->fromAsString(data), node));
68  mp->setIsEncrypted(true);
69  mp->setDecryptMessage(part.source()->decryptMessage());
70  PartMetaData *messagePart(mp->partMetaData());
71 
72  if (!part.source()->decryptMessage()) {
73  part.nodeHelper()->setNodeProcessed(data, false); // Set the data node to done to prevent it from being processed
74  } else if (KMime::Content *newNode = part.nodeHelper()->decryptedNodeForContent(data)) {
75  part.nodeHelper()->registerOverrideHeader(data->parent(), mp);
76 
77  // if we already have a decrypted node for part.objectTreeParser() encrypted node, don't do the decryption again
78  return MessagePart::Ptr(new MimeMessagePart(part.objectTreeParser(), newNode, true));
79  } else {
80  mp->startDecryption(data);
81  qCDebug(MIMETREEPARSER_LOG) << "decrypted, signed?:" << messagePart->isSigned;
82 
83  if (!messagePart->inProgress) {
84  part.nodeHelper()->registerOverrideHeader(data->parent(), mp);
85  part.nodeHelper()->setNodeProcessed(data, false); // Set the data node to done to prevent it from being processed
86  }
87  }
88  return mp;
89 }
virtual bool decryptMessage() const =0
Return true if an encrypted mail should be decrypted.
QString decodedText(bool trimText=false, bool removeTrailingNewlines=false)
QVector< Content * > contents() const
virtual KMime::Content * content() const =0
Returns the KMime::Content node represented here.
interface of message body parts.
Definition: bodypart.h:44
Content * parent() const
virtual MimeTreeParser::NodeHelper * nodeHelper() const =0
Ok, this is ugly, exposing the node helper here, but there is too much useful stuff in there for real...
virtual MimeTreeParser::ObjectTreeParser * objectTreeParser() const =0
For making it easier to refactor, add objectTreeParser.
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