DXR is a code search and navigation tool aimed at making sense of large projects. It supports full-text and regex searches as well as structural queries.

Implementation

Mercurial (379a2370cd89)

VCS Links

Line Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is mozilla.org code.
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 1999
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either of the GNU General Public License Version 2 or later (the "GPL"),
 * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

#ifndef nsMsgDBFolder_h__
#define nsMsgDBFolder_h__

#include "msgCore.h"
#include "nsIMsgFolder.h" 
#include "nsRDFResource.h"
#include "nsIDBFolderInfo.h"
#include "nsIMsgDatabase.h"
#include "nsIMsgIncomingServer.h"
#include "nsCOMPtr.h"
#include "nsStaticAtom.h"
#include "nsIDBChangeListener.h"
#include "nsIURL.h"
#include "nsILocalFile.h"
#include "nsWeakReference.h"
#include "nsIMsgFilterList.h"
#include "nsIUrlListener.h"
#include "nsIMsgHdr.h"
#include "nsIOutputStream.h"
#include "nsITransport.h"
#include "nsIStringBundle.h"
#include "nsTObserverArray.h"
#include "nsCOMArray.h"
#include "nsMsgKeySet.h"
#include "nsMsgMessageFlags.h"
#include "nsIMsgFilterPlugin.h"
class nsIMsgFolderCacheElement;
class nsICollation;
class nsMsgKeySetU;

 /* 
  * nsMsgDBFolder
  * class derived from nsMsgFolder for those folders that use an nsIMsgDatabase
  */ 

#undef IMETHOD_VISIBILITY
#define IMETHOD_VISIBILITY NS_VISIBILITY_DEFAULT

class NS_MSG_BASE nsMsgDBFolder: public nsRDFResource,
                                 public nsSupportsWeakReference,
                                 public nsIMsgFolder,
                                 public nsIDBChangeListener,
                                 public nsIUrlListener,
                                 public nsIJunkMailClassificationListener,
                                 public nsIMsgTraitClassificationListener
{
public: 
  nsMsgDBFolder(void);
  virtual ~nsMsgDBFolder(void);
  NS_DECL_ISUPPORTS_INHERITED
  NS_DECL_NSIMSGFOLDER
  NS_DECL_NSIDBCHANGELISTENER
  NS_DECL_NSIURLLISTENER
  NS_DECL_NSIJUNKMAILCLASSIFICATIONLISTENER
  NS_DECL_NSIMSGTRAITCLASSIFICATIONLISTENER
  
  NS_IMETHOD WriteToFolderCacheElem(nsIMsgFolderCacheElement *element);
  NS_IMETHOD ReadFromFolderCacheElem(nsIMsgFolderCacheElement *element);

  // nsRDFResource overrides
  NS_IMETHOD Init(const char* aURI);

  // These functions are used for tricking the front end into thinking that we have more 
  // messages than are really in the DB.  This is usually after and IMAP message copy where
  // we don't want to do an expensive select until the user actually opens that folder
  // These functions are called when MSG_Master::GetFolderLineById is populating a MSG_FolderLine
  // struct used by the FE
  PRInt32 GetNumPendingUnread();
  PRInt32 GetNumPendingTotalMessages();

  void ChangeNumPendingUnread(PRInt32 delta);
  void ChangeNumPendingTotalMessages(PRInt32 delta);

  nsresult CreateDirectoryForFolder(nsILocalFile **result);
  nsresult CreateBackupDirectory(nsILocalFile **result);
  nsresult GetBackupSummaryFile(nsILocalFile **result, const nsACString& newName);
  nsresult GetMsgPreviewTextFromStream(nsIMsgDBHdr *msgHdr, nsIInputStream *stream);
  nsresult HandleAutoCompactEvent(nsIMsgWindow *aMsgWindow);
protected:
  
  // this is a little helper function that is not part of the public interface. 
  // we use it to get the IID of the incoming server for the derived folder.
  // w/out a function like this we would have to implement GetServer in each
  // derived folder class.
  virtual void GetIncomingServerType(nsCString& serverType) = 0;

  virtual nsresult CreateBaseMessageURI(const nsACString& aURI);

  void compressQuotesInMsgSnippet(const nsString& aMessageText, nsAString& aCompressedQuotesStr);
  void decodeMsgSnippet(const nsACString& aEncodingType, bool aIsComplete, nsCString& aMsgSnippet);

  // helper routine to parse the URI and update member variables
  nsresult parseURI(bool needServer=false);
  nsresult GetBaseStringBundle(nsIStringBundle **aBundle);
  nsresult GetStringFromBundle(const char* msgName, nsString& aResult);
  nsresult ThrowConfirmationPrompt(nsIMsgWindow *msgWindow, const nsAString& confirmString, bool *confirmed);
  nsresult GetWarnFilterChanged(bool *aVal);
  nsresult SetWarnFilterChanged(bool aVal);
  nsresult CreateCollationKey(const nsString &aSource,  PRUint8 **aKey, PRUint32 *aLength);

protected:
  // all children will override this to create the right class of object.
  virtual nsresult CreateChildFromURI(const nsCString &uri, nsIMsgFolder **folder) = 0;
  virtual nsresult ReadDBFolderInfo(bool force);
  virtual nsresult FlushToFolderCache();
  virtual nsresult GetDatabase() = 0;
  virtual nsresult SendFlagNotifications(nsIMsgDBHdr *item, PRUint32 oldFlags, PRUint32 newFlags);
  nsresult CheckWithNewMessagesStatus(bool messageAdded);
  void     UpdateNewMessages();
  nsresult OnHdrAddedOrDeleted(nsIMsgDBHdr *hdrChanged, bool added);
  nsresult CreateFileForDB(const nsAString& userLeafName, nsILocalFile *baseDir,
                           nsILocalFile **dbFile);

  nsresult GetFolderCacheKey(nsILocalFile **aFile, bool createDBIfMissing = false);
  nsresult GetFolderCacheElemFromFile(nsILocalFile *file, nsIMsgFolderCacheElement **cacheElement);
  nsresult AddDirectorySeparator(nsILocalFile *path);
  nsresult CheckIfFolderExists(const nsAString& newFolderName, nsIMsgFolder *parentFolder, nsIMsgWindow *msgWindow);

  // Returns true if: a) there is no need to prompt or b) the user is already
  // logged in or c) the user logged in successfully.
  static bool PromptForMasterPasswordIfNecessary();

  // offline support methods.
  nsresult StartNewOfflineMessage();
  nsresult WriteStartOfNewLocalMessage();
  nsresult EndNewOfflineMessage();
  nsresult CompactOfflineStore(nsIMsgWindow *inWindow, nsIUrlListener *aUrlListener);
  nsresult AutoCompact(nsIMsgWindow *aWindow);
  // this is a helper routine that ignores whether nsMsgMessageFlags::Offline is set for the folder
  nsresult MsgFitsDownloadCriteria(nsMsgKey msgKey, bool *result);
  nsresult GetPromptPurgeThreshold(bool *aPrompt);
  nsresult GetPurgeThreshold(PRInt32 *aThreshold);
  nsresult ApplyRetentionSettings(bool deleteViaFolder);
  bool     VerifyOfflineMessage(nsIMsgDBHdr *msgHdr, nsIInputStream *fileStream);
  nsresult AddMarkAllReadUndoAction(nsIMsgWindow *msgWindow,
                                    nsMsgKey *thoseMarked, PRUint32 numMarked);

  nsresult PerformBiffNotifications(void); // if there are new, non spam messages, do biff
  nsresult CloseDBIfFolderNotOpen();

  virtual nsresult SpamFilterClassifyMessage(const char *aURI, nsIMsgWindow *aMsgWindow, nsIJunkMailPlugin *aJunkMailPlugin);
  virtual nsresult SpamFilterClassifyMessages(const char **aURIArray, PRUint32 aURICount, nsIMsgWindow *aMsgWindow, nsIJunkMailPlugin *aJunkMailPlugin);
  // Helper function for Move code to call to update the MRU and MRM time.
  void    UpdateTimestamps(bool allowUndo);
  void    SetMRUTime();
  void    SetMRMTime();
  /**
   * Clear all processing flags, presumably because message keys are no longer
   * valid.
   */
  void ClearProcessingFlags();

  nsresult NotifyHdrsNotBeingClassified();

protected:
  nsCOMPtr<nsIMsgDatabase> mDatabase;
  nsCOMPtr<nsIMsgDatabase> mBackupDatabase;
  nsCString mCharset;
  bool mCharsetOverride;
  bool mAddListener;
  bool mNewMessages;
  bool mGettingNewMessages;
  nsMsgKey mLastMessageLoaded;

  nsCOMPtr <nsIMsgDBHdr> m_offlineHeader;
  PRInt32 m_numOfflineMsgLines;
  PRInt32 m_bytesAddedToLocalMsg;
  // this is currently used when we do a save as of an imap or news message..
  nsCOMPtr<nsIOutputStream> m_tempMessageStream;

  nsCOMPtr <nsIMsgRetentionSettings> m_retentionSettings;
  nsCOMPtr <nsIMsgDownloadSettings> m_downloadSettings;
  static NS_MSG_BASE_STATIC_MEMBER_(nsrefcnt) mInstanceCount;

protected:
  PRUint32 mFlags;
  nsWeakPtr mParent;     //This won't be refcounted for ownership reasons.
  PRInt32 mNumUnreadMessages;        /* count of unread messages (-1 means unknown; -2 means unknown but we already tried to find out.) */
  PRInt32 mNumTotalMessages;         /* count of existing messages. */
  bool mNotifyCountChanges;
  PRUint32 mExpungedBytes;
  nsCOMArray<nsIMsgFolder> mSubFolders;
  // This can't be refcounted due to ownsership issues
  nsTObserverArray<nsIFolderListener*> mListeners;

  bool mInitializedFromCache;
  nsISupports *mSemaphoreHolder; // set when the folder is being written to
                                 //Due to ownership issues, this won't be AddRef'd.

  nsWeakPtr mServer;

  // These values are used for tricking the front end into thinking that we have more 
  // messages than are really in the DB.  This is usually after and IMAP message copy where
  // we don't want to do an expensive select until the user actually opens that folder
  PRInt32 mNumPendingUnreadMessages;
  PRInt32 mNumPendingTotalMessages;
  PRUint32 mFolderSize;

  PRInt32 mNumNewBiffMessages;
  bool mIsCachable;

  // these are previous set of new msgs, which we might
  // want to run junk controls on. This is in addition to "new" hdrs
  // in the db, which might get cleared because the user clicked away
  // from the folder.
  nsTArray<nsMsgKey> m_saveNewMsgs;

  // These are the set of new messages for a folder who has had
  // its db closed, without the user reading the folder. This 
  // happens with pop3 mail filtered to a different local folder.
  nsTArray<nsMsgKey> m_newMsgs;

  //
  // stuff from the uri
  //
  bool mHaveParsedURI;        // is the URI completely parsed?
  bool mIsServerIsValid;
  bool mIsServer;
  nsString mName;
  nsCOMPtr<nsILocalFile> mPath;
  nsCString mBaseMessageURI; //The uri with the message scheme

  bool mInVFEditSearchScope ; // non persistant state used by the virtual folder UI

  // static stuff for cross-instance objects like atoms
  static NS_MSG_BASE_STATIC_MEMBER_(nsrefcnt) gInstanceCount;

  static nsresult initializeStrings();
  static nsresult createCollationKeyGenerator();

  static NS_MSG_BASE_STATIC_MEMBER_(PRUnichar*) kLocalizedInboxName;
  static NS_MSG_BASE_STATIC_MEMBER_(PRUnichar*) kLocalizedTrashName;
  static NS_MSG_BASE_STATIC_MEMBER_(PRUnichar*) kLocalizedSentName;
  static NS_MSG_BASE_STATIC_MEMBER_(PRUnichar*) kLocalizedDraftsName;
  static NS_MSG_BASE_STATIC_MEMBER_(PRUnichar*) kLocalizedTemplatesName;
  static NS_MSG_BASE_STATIC_MEMBER_(PRUnichar*) kLocalizedUnsentName;
  static NS_MSG_BASE_STATIC_MEMBER_(PRUnichar*) kLocalizedJunkName;
  static NS_MSG_BASE_STATIC_MEMBER_(PRUnichar*) kLocalizedArchivesName;

  static NS_MSG_BASE_STATIC_MEMBER_(PRUnichar*) kLocalizedBrandShortName;
  
#define MSGDBFOLDER_ATOM(name_, value) static NS_MSG_BASE_STATIC_MEMBER_(nsIAtom*) name_;
#include "nsMsgDBFolderAtomList.h"
#undef MSGDBFOLDER_ATOM

  static NS_MSG_BASE_STATIC_MEMBER_(nsICollation*) gCollationKeyGenerator;

#ifdef MSG_FASTER_URI_PARSING
  // cached parsing URL object
  static NS_MSG_BASE_STATIC_MEMBER_(nsCOMPtr<nsIURL>) mParsingURL;
  static NS_MSG_BASE_STATIC_MEMBER_(bool) mParsingURLInUse;
#endif

  static const NS_MSG_BASE_STATIC_MEMBER_(nsStaticAtom) folder_atoms[];

  // store of keys that have a processing flag set
  struct
  {
    PRUint32 bit;
    nsMsgKeySetU* keys;
  } mProcessingFlag[nsMsgProcessingFlags::NumberOfFlags];

  // list of nsIMsgDBHdrs for messages to process post-bayes
  nsCOMPtr<nsIMutableArray> mPostBayesMessagesToFilter;

  /**
   * The list of message keys that have been classified for msgsClassified
   * batch notification purposes.  We add to this list in OnMessageClassified
   * when we are told about a classified message (a URI is provided), and we
   * notify for the list and clear it when we are told all the messages in
   * the batch were classified (a URI is not provided).
   */
  nsTArray<nsMsgKey> mClassifiedMsgKeys;
  // Is the current bayes filtering doing junk classification?
  bool mBayesJunkClassifying;
  // Is the current bayes filtering doing trait classification?
  bool mBayesTraitClassifying;
};

// This class is a kludge to allow nsMsgKeySet to be used with PRUint32 keys
class nsMsgKeySetU
{
public:
    // Creates an empty set.
  static nsMsgKeySetU* Create();
  ~nsMsgKeySetU();
  // IsMember() returns whether the given key is a member of this set.
  bool IsMember(PRUint32 key);
  // Add() adds the given key to the set.  (Returns 1 if a change was
  // made, 0 if it was already there, and negative on error.)
  int Add(PRUint32 key);
  // Remove() removes the given article from the set. 
  int Remove(PRUint32 key);
  // Add the keys in the set to aArray.
  nsresult ToMsgKeyArray(nsTArray<nsMsgKey> &aArray);

protected:
  nsMsgKeySetU();
  nsMsgKeySet* loKeySet;
  nsMsgKeySet* hiKeySet;
};

#undef  IMETHOD_VISIBILITY
#define IMETHOD_VISIBILITY NS_VISIBILITY_HIDDEN

#endif