nsMsgComposeSecure.h

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/* -*- Mode: idl; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-

 * This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef _nsMsgComposeSecure_H_

#define _nsMsgComposeSecure_H_

#include "nsIMsgComposeSecure.h"

#include "nsCOMPtr.h"

#include "nsICMSEncoder.h"

#include "nsIX509Cert.h"

#include "nsIStringBundle.h"

#include "nsICryptoHash.h"

#include "nsICMSMessage.h"

#include "nsString.h"

#include "nsTHashMap.h"

#include "nsIOutputStream.h"

#include "mozilla/UniquePtr.h"

#include "mozilla/StaticMutex.h"

class nsIMsgCompFields;

namespace mozilla {

namespace mailnews {

class MimeEncoder;

}  // namespace mozilla

typedef enum {

  mime_crypto_none,            /* normal unencapsulated MIME message */

  mime_crypto_clear_signed,    /* multipart/signed encapsulation */

  mime_crypto_opaque_signed,   /* application/x-pkcs7-mime (signedData) */

  mime_crypto_encrypted,       /* application/x-pkcs7-mime */

  mime_crypto_signed_encrypted /* application/x-pkcs7-mime */

} mimeDeliveryCryptoState;

class nsMsgComposeSecure : public nsIMsgComposeSecure {

 public:

  NS_DECL_ISUPPORTS

  NS_DECL_NSIMSGCOMPOSESECURE

  nsMsgComposeSecure();

  void GetOutputStream(nsIOutputStream** stream) {

    NS_IF_ADDREF(*stream = mStream);

  nsresult GetSMIMEBundleString(const char16_t* name, nsString& outString);

 private:

  virtual ~nsMsgComposeSecure();

  typedef mozilla::mailnews::MimeEncoder MimeEncoder;

  nsresult MimeInitMultipartSigned(bool aOuter, nsIMsgSendReport* sendReport);

  nsresult MimeInitEncryption(bool aSign, nsIMsgSendReport* sendReport);

  nsresult MimeFinishMultipartSigned(bool aOuter, nsIMsgSendReport* sendReport);

  nsresult MimeFinishEncryption(bool aSign, nsIMsgSendReport* sendReport);

  nsresult MimeCryptoHackCerts(const char* aRecipients,

                               nsIMsgSendReport* sendReport, bool aEncrypt,

                               bool aSign, nsIMsgIdentity* aIdentity);

  bool InitializeSMIMEBundle();

  nsresult SMIMEBundleFormatStringFromName(const char* name,

                                           nsTArray<nsString>& params,

                                           nsAString& outString);

  nsresult ExtractEncryptionState(nsIMsgIdentity* aIdentity,

                                  nsIMsgCompFields* aComposeFields,

                                  bool* aSignMessage, bool* aEncrypt);

  bool mSignMessage;

  bool mAlwaysEncryptMessage;

  mimeDeliveryCryptoState mCryptoState;

  nsCOMPtr<nsIOutputStream> mStream;

  int16_t mHashType;

  nsCOMPtr<nsICryptoHash> mDataHash;

  mozilla::UniquePtr<MimeEncoder> mSigEncoder;

  char* mMultipartSignedBoundary;

  nsString mSigningCertName;

  nsAutoCString mSigningCertDBKey;

  nsCOMPtr<nsIX509Cert> mSelfSigningCert;

  nsString mEncryptionCertName;

  nsAutoCString mEncryptionCertDBKey;

  nsCOMPtr<nsIX509Cert> mSelfEncryptionCert;

  nsTArray<RefPtr<nsIX509Cert>> mCerts;

  nsCOMPtr<nsICMSMessage> mEncryptionCinfo;

  nsCOMPtr<nsICMSEncoder> mEncryptionContext;

  nsCOMPtr<nsIStringBundle> mSMIMEBundle;

  // Maps email address to nsIX509Cert.dbKey of a verified certificate.

  nsTHashMap<nsCStringHashKey, nsCString> mValidCertForEmailAddr;

  static mozilla::StaticMutex sMutex;

  mozilla::UniquePtr<MimeEncoder> mCryptoEncoder;

  bool mIsDraft;

  enum { eBufferSize = 8192 };

  char* mBuffer;

  uint32_t mBufferedBytes;

  bool mErrorAlreadyReported;

  void SetError(nsIMsgSendReport* sendReport, const char16_t* bundle_string);

  void SetErrorWithParam(nsIMsgSendReport* sendReport,

                         const char* bundle_string, const char* param);

};

#endif