gecko-dev/lib/libmsg/maildb.cpp

675 строки
18 KiB
C++
Исходник Обычный вид История

1998-06-23 02:39:40 +04:00
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
#include "msg.h"
#include "xp.h"
#include "maildb.h"
#include "dberror.h"
#include "msgdbvw.h"
#include "mailhdr.h"
#include "thrhead.h"
#include "grpinfo.h"
#include "imap.h"
#include "msgmast.h"
#include "msgprefs.h"
#include "msgimap.h"
#include "imapoff.h"
#include "prefapi.h"
#include "msgdbapi.h"
extern "C"
{
extern int MK_MSG_CANT_OPEN;
}
MailDB::MailDB()
{
m_folderName = NULL;
m_reparse = FALSE;
m_folderFile = NULL;
m_master = NULL;
}
MailDB::~MailDB()
{
FREEIF(m_folderName);
}
MsgERR MailDB::OnNewPath (const char *newPath)
{
FREEIF(m_folderName);
m_folderName = XP_STRDUP (newPath);
return eSUCCESS;
}
// static method. This routine works in very different ways depending on the passed flags.
// If create is true, we will create a database if none was there.
// If upgrading is TRUE, the caller is upgrading and does not care that the database is
// gone, or out of sync with the mail folder. The caller will upgrade in the background
// and just wants a db open to upgrade into.
MsgERR MailDB::Open(const char * folderName, XP_Bool create,
MailDB** pMessageDB,
XP_Bool upgrading /*=FALSE*/)
{
MailDB *mailDB;
int statResult;
XP_StatStruct st;
DBFolderInfo *folderInfo = NULL;
XP_Bool newFile = FALSE;
char *dbName;
*pMessageDB = NULL;
if (m_cacheEnabled)
{
dbName = WH_FileName(folderName, xpMailFolderSummary);
if (!dbName) return eOUT_OF_MEMORY;
mailDB = (MailDB *) FindInCache(dbName);
XP_FREE(dbName);
if (mailDB)
{
*pMessageDB = mailDB;
// make this behave like the non-cache case. Is global dB set? DMB TODO
++(mailDB->m_useCount);
return(eSUCCESS);
}
}
// if the old summary doesn't exist, we're creating a new one.
if (XP_Stat (folderName, &st, xpMailFolderSummary) && create)
newFile = TRUE;
mailDB = new MailDB;
if (!mailDB)
return(eOUT_OF_MEMORY);
mailDB->m_folderName = XP_STRDUP(folderName);
dbName = WH_FileName(folderName, xpMailFolderSummary);
if (!dbName) return eOUT_OF_MEMORY;
// stat file before we open the db, because if we've latered
// any messages, handling latered will change time stamp on
// folder file.
statResult = XP_Stat (folderName, &st, xpMailFolder);
MsgERR err = mailDB->MessageDBOpen(dbName, create);
XP_FREE(dbName);
if (err == eSUCCESS)
{
folderInfo = mailDB->GetDBFolderInfo();
if (folderInfo == NULL)
{
err = eOldSummaryFile;
}
else
{
// if opening existing file, make sure summary file is up to date.
// if caller is upgrading, don't return eOldSummaryFile so the caller
// can pull out the transfer info for the new db.
if (!newFile && !statResult && !upgrading)
{
if (folderInfo->m_folderSize != st.st_size ||
folderInfo->m_folderDate != st.st_mtime || folderInfo->GetNumNewMessages() < 0)
err = eOldSummaryFile;
}
// compare current version of db versus filed out version info.
if (mailDB->GetCurVersion() != folderInfo->GetDiskVersion())
err = eOldSummaryFile;
}
if (err != eSUCCESS)
{
mailDB->Close();
mailDB = NULL;
}
}
if (err != eSUCCESS || newFile)
{
// if we couldn't open file, or we have a blank one, and we're supposed
// to upgrade, updgrade it.
if (newFile && !upgrading) // caller is upgrading, and we have empty summary file,
{ // leave db around and open so caller can upgrade it.
err = eNoSummaryFile;
}
else if (err != eSUCCESS)
{
*pMessageDB = NULL;
delete mailDB;
}
}
if (err == eSUCCESS || err == eNoSummaryFile)
{
*pMessageDB = mailDB;
if (m_cacheEnabled)
GetDBCache()->Add(mailDB);
if (err == eSUCCESS)
mailDB->HandleLatered();
}
return(err);
}
// This routine opens an invalid db, pulls out the information worth saving, (like sort order),
// blows away the invalid db, creates a new empty one, and restores the information worth saving.
/* static */
MsgERR MailDB::CloneInvalidDBInfoIntoNewDB(const char * pathname, MailDB** pMailDB)
{
XP_StatStruct folderst;
MailDB *mailDB;
TDBFolderInfoTransfer *originalInfo = NULL;
int status = MailDB::Open(pathname, TRUE, &mailDB, TRUE);
if (status == eSUCCESS && mailDB != NULL)
{
originalInfo = new TDBFolderInfoTransfer(*mailDB->GetDBFolderInfo());
mailDB->Close();
}
XP_Trace("blowing away old summary file\n");
if (!XP_Stat(pathname, &folderst, xpMailFolderSummary) && XP_FileRemove(pathname, xpMailFolderSummary) != 0)
{
status = MK_MSG_CANT_OPEN;
}
else
{
status = MailDB::Open(pathname, TRUE, &mailDB, TRUE);
if (originalInfo)
{
if (status == eSUCCESS && mailDB != NULL)
originalInfo->TransferFolderInfo(*mailDB->GetDBFolderInfo());
delete originalInfo;
}
}
*pMailDB = mailDB;
return status;
}
MSG_FolderInfo *MailDB::GetFolderInfo()
{
if (!m_folderInfo)
{
m_folderInfo = m_master->FindMailFolder(m_folderName, FALSE);
}
return m_folderInfo;
}
// caller needs to unrefer when finished.
MailMessageHdr *MailDB::GetMailHdrForKey(MessageKey messageKey)
{
MailMessageHdr *headerObject = NULL;
MSG_HeaderHandle headerHandle = MSG_DBHandle_GetHandleForKey(m_dbHandle, messageKey);
if (headerHandle)
headerObject = new MailMessageHdr(headerHandle);
return headerObject;
}
MsgERR MailDB::DeleteMessages(IDArray &messageKeys, ChangeListener *instigator)
{
m_folderFile = XP_FileOpen(m_folderName, xpMailFolder,
XP_FILE_UPDATE_BIN);
MsgERR err = MessageDB::DeleteMessages(messageKeys, instigator);
if (m_folderFile)
XP_FileClose(m_folderFile);
m_folderFile = NULL;
SetFolderInfoValid(m_folderName, 0, 0);
return err;
}
// Helper routine - lowest level of flag setting
void MailDB::SetHdrFlag(DBMessageHdr *msgHdr, XP_Bool bSet, MsgFlags flag)
{
XP_File fid = NULL;
MessageDB::SetHdrFlag(msgHdr, bSet, flag);
// update summary flag
if (msgHdr->GetFlags() & kDirty)
{
// ### Hack - we know it's a mail message hdr 'cuz it's in a maildb
// ImapMailDB::UpdateFolderFlag does nothing
UpdateFolderFlag((MailMessageHdr *) msgHdr, bSet, flag, &fid);
if (fid != NULL)
{
XP_FileClose(fid);
SetFolderInfoValid(m_folderName, 0, 0);
}
}
}
// We let the caller close the file in case he's updating a lot of flags
// and we don't want to open and close the file every time through.
// As an experiment, try caching the fid in the db as m_folderFile.
// If this is set, use it but don't return *pFid.
void MailDB::UpdateFolderFlag(MailMessageHdr *mailHdr, XP_Bool /*bSet*/,
MsgFlags /*flag*/, XP_File *pFid)
{
static char buf[30];
XP_File fid = (m_folderFile) ? m_folderFile : *pFid;
if (mailHdr->GetFlags() & kDirty)
{
if (mailHdr->GetStatusOffset() > 0)
{
if (fid == NULL)
{
fid = XP_FileOpen(m_folderName, xpMailFolder,
XP_FILE_UPDATE_BIN);
}
if (fid)
{
uint32 position =
mailHdr->GetStatusOffset() + mailHdr->GetMessageOffset();
XP_ASSERT(mailHdr->GetStatusOffset() < 10000);
XP_FileSeek(fid, position, SEEK_SET);
buf[0] = '\0';
if (XP_FileReadLine(buf, sizeof(buf), fid))
{
if (strncmp(buf, X_MOZILLA_STATUS, X_MOZILLA_STATUS_LEN) == 0 &&
strncmp(buf + X_MOZILLA_STATUS_LEN, ": ", 2) == 0 &&
strlen(buf) > X_MOZILLA_STATUS_LEN + 6)
{
XP_FileSeek(fid, position, SEEK_SET);
// We are filing out old Cheddar flags here
XP_FilePrintf(fid, X_MOZILLA_STATUS_FORMAT,
(mailHdr->GetMozillaStatusFlags() & ~MSG_FLAG_RUNTIME_ONLY));
// time to upate x-mozilla-status2
position = XP_FileTell(fid);
XP_FileSeek(fid, position + LINEBREAK_LEN, SEEK_SET);
if (XP_FileReadLine(buf, sizeof(buf), fid))
{
if (strncmp(buf, X_MOZILLA_STATUS2, X_MOZILLA_STATUS2_LEN) == 0 &&
strncmp(buf + X_MOZILLA_STATUS2_LEN, ": ", 2) == 0 &&
strlen(buf) > X_MOZILLA_STATUS2_LEN + 10)
{
uint32 dbFlags = mailHdr->GetFlags();
MessageDB::ConvertDBFlagsToPublicFlags(&dbFlags);
dbFlags &= (MSG_FLAG_MDN_REPORT_NEEDED | MSG_FLAG_MDN_REPORT_SENT | MSG_FLAG_TEMPLATE);
XP_FileSeek(fid, position + LINEBREAK_LEN, SEEK_SET);
XP_FilePrintf(fid, X_MOZILLA_STATUS2_FORMAT, dbFlags);
}
}
} else
{
PRINTF(("Didn't find %s where expected at position %ld\n"
"instead, found %s.\n",
X_MOZILLA_STATUS, (long) position, buf));
SetReparse(TRUE);
}
}
else
{
PRINTF(("Couldn't read old status line at all at position %ld\n",
(long) position));
SetReparse(TRUE);
}
}
else
{
PRINTF(("Couldn't open mail folder for update%s!\n", m_folderName));
XP_ASSERT(FALSE);
}
}
if (!m_folderFile)
*pFid = fid;
mailHdr->AndFlags(~kDirty);
}
}
// Use this function if you have the correct counts, but just want to protect
// from a crash. In theory, this Commit should be quick, since there's only
// one or two dirty objects.
MsgERR MailDB::SetSummaryValid(XP_Bool valid /*= TRUE*/)
{
XP_StatStruct folderst;
if (XP_Stat((char*) m_folderName, &folderst, xpMailFolder))
return eDBExistsNot;
if (valid)
{
m_dbFolderInfo->m_folderSize = folderst.st_size;
m_dbFolderInfo->m_folderDate = folderst.st_mtime;
}
else
{
m_dbFolderInfo->m_folderDate = 0; // that ought to do the trick.
}
// m_dbFolderInfo->setDirty(); DMB TODO
Commit();
return eSUCCESS;
}
MsgERR MailDB::GetIdsWithNoBodies (IDArray &bodylessIds)
{
DBMessageHdr *currentHeader;
ListContext *listContext = NULL;
MsgERR dbErr = ListFirst (&listContext, &currentHeader);
int32 maxMsgSize = 0x7fffffff;
XP_Bool respectMsgSizeLimit = FALSE;
PREF_GetBoolPref("mail.limit_message_size", &respectMsgSizeLimit);
if (respectMsgSizeLimit && PREF_OK == PREF_GetIntPref("mail.max_size", &maxMsgSize))
maxMsgSize *= 1024;
while (dbErr == eSUCCESS)
{
if (0 == ((MailMessageHdr *)currentHeader)->GetOfflineMessageLength(GetDB()) && currentHeader->GetByteLength() < (uint32) maxMsgSize)
bodylessIds.Add(currentHeader->GetMessageKey());
delete currentHeader;
dbErr = ListNext(listContext, &currentHeader);
}
if (dbErr == eDBEndOfList)
{
dbErr = eSUCCESS;
ListDone(listContext);
}
return dbErr;
}
/* static */
MsgERR MailDB::SetFolderInfoValid(const char* pathname, int num, int numunread)
{
XP_StatStruct folderst;
MsgERR err;
if (XP_Stat((char*) pathname, &folderst, xpMailFolder))
return eDBExistsNot;
char *dbName = WH_FileName(pathname, xpMailFolderSummary);
if (!dbName) return eOUT_OF_MEMORY;
MessageDB *pMessageDB = MessageDB::FindInCache(dbName);
if (pMessageDB == NULL)
{
pMessageDB = new MailDB;
// ### this does later stuff (marks latered messages unread), which may be a problem
err = pMessageDB->MessageDBOpen(dbName, FALSE);
if (err != eSUCCESS)
{
delete pMessageDB;
pMessageDB = NULL;
}
}
else
pMessageDB->AddUseCount();
XP_FREE(dbName);
if (pMessageDB == NULL)
{
XP_Trace("Exception opening summary file\n");
return eOldSummaryFile;
}
pMessageDB->m_dbFolderInfo->m_folderSize = folderst.st_size;
pMessageDB->m_dbFolderInfo->m_folderDate = folderst.st_mtime;
pMessageDB->m_dbFolderInfo->ChangeNumVisibleMessages(num);
pMessageDB->m_dbFolderInfo->ChangeNumNewMessages(numunread);
pMessageDB->m_dbFolderInfo->ChangeNumMessages(num);
pMessageDB->Close();
return eSUCCESS;
}
// This is used to remember that the db is out of sync with the mail folder
// and needs to be regenerated.
void MailDB::SetReparse(XP_Bool reparse)
{
m_reparse = reparse;
}
ImapMailDB::ImapMailDB() : MailDB()
{
}
ImapMailDB::~ImapMailDB()
{}
MsgERR ImapMailDB::Open(const char * folderName, XP_Bool create,
MailDB** pMessageDB,
MSG_Master* mailMaster,
XP_Bool *dbWasCreated)
{
ImapMailDB *mailDB=NULL;
XP_StatStruct st;
DBFolderInfo *folderInfo = NULL;
XP_Bool newFile = FALSE;
char* dbName;
MsgERR err=eUNKNOWN;
XP_Bool dbFoundInCache=FALSE;
XP_ASSERT(mailMaster);
*dbWasCreated = FALSE;
// code below can't call XP_File routines, or dbName will be crunched.
if (m_cacheEnabled)
{
dbName = WH_FileName(folderName, xpMailFolderSummary);
if (!dbName) return eOUT_OF_MEMORY;
mailDB = (ImapMailDB *) FindInCache(dbName);
XP_FREE(dbName);
if (mailDB)
{
*pMessageDB = mailDB;
++(mailDB->m_useCount);
// make this behave like the non-cache case. Is global DB set? DMB TODO
err = eSUCCESS;
dbFoundInCache = TRUE;
}
}
if (!dbFoundInCache)
{
// if the old summary doesn't exist, we're creating a new one.
if (XP_Stat (folderName, &st, xpMailFolderSummary) && create)
{
newFile = TRUE;
*dbWasCreated = TRUE;
}
mailDB = new ImapMailDB;
if (!mailDB)
{
*pMessageDB = NULL;
return(eOUT_OF_MEMORY);
}
mailDB->m_folderName = XP_STRDUP(folderName);
dbName = WH_FileName(folderName, xpMailFolderSummary);
if (!dbName) {
err = eOUT_OF_MEMORY;
} else {
err = mailDB->MessageDBOpen(dbName, create);
XP_FREE(dbName);
}
if (err == eSUCCESS)
{
folderInfo = mailDB->GetDBFolderInfo();
// if opening existing file, make sure summary file is up to date.
if (!newFile && !XP_Stat (folderName, &st, xpMailFolder))
{
if (folderInfo->m_folderSize != st.st_size)
err = eOldSummaryFile;
}
if (mailDB->GetCurVersion() != folderInfo->GetDiskVersion())
err = eOldSummaryFile;
if (err != eSUCCESS)
{
mailDB->Close();
mailDB = NULL;
}
}
if (err == eSUCCESS)
{
*pMessageDB = mailDB;
if (m_cacheEnabled)
GetDBCache()->Add(mailDB);
}
}
if (mailDB)
{
mailDB->SetMaster(mailMaster);
if (mailMaster)
{
// this causes an infinite recursion, so don't do it.
// MSG_FolderInfoMail *folderInfo = mailMaster->FindImapMailFolder(folderName);
// mailDB->SetFolderInfo(folderInfo);
}
}
return(err);
}
void ImapMailDB::UpdateFolderFlag(MailMessageHdr *, XP_Bool ,
MsgFlags , XP_File *fid)
{
fid = NULL;
}
MSG_FolderInfo *ImapMailDB::GetFolderInfo()
{
if (!m_folderInfo)
{
XPStringObj mailBoxName;
m_dbFolderInfo->GetMailboxName(mailBoxName);
m_folderInfo = m_master->FindImapMailFolderFromPath(m_folderName);
}
return m_folderInfo;
}
// caller needs to unrefer when finished.
DBOfflineImapOperation *MailDB::GetOfflineOpForKey(MessageKey messageKey, XP_Bool create)
{
DBOfflineImapOperation *offlineObject = NULL;
MSG_OfflineIMAPOperationHandle offlineOpHandle = MSG_DBHandle_GetOfflineOp(m_dbHandle, messageKey);
if (offlineOpHandle)
{
offlineObject = new DBOfflineImapOperation;
if (offlineObject)
{
offlineObject->SetHandle(offlineOpHandle);
offlineObject->SetDBHandle(m_dbHandle);
}
}
if (!offlineObject && create)
{
offlineObject = new DBOfflineImapOperation;
if (offlineObject)
{
offlineObject->SetHandle(GetOfflineIMAPOperation());
offlineObject->SetMessageKey(messageKey);
offlineObject->SetDBHandle(m_dbHandle);
// if there is a corresponding msg, use its flags
MailMessageHdr *msgHdr = GetMailHdrForKey(messageKey);
if (msgHdr)
{
imapMessageFlagsType imapFlags = kNoImapMsgFlag;
if (msgHdr->GetFlags() & MSG_FLAG_READ)
imapFlags |= kImapMsgSeenFlag;
if (msgHdr->GetFlags() & MSG_FLAG_REPLIED)
imapFlags |= kImapMsgAnsweredFlag;
if (msgHdr->GetFlags() & MSG_FLAG_MARKED)
imapFlags |= kImapMsgFlaggedFlag;
if (msgHdr->GetFlags() & MSG_FLAG_FORWARDED)
imapFlags |= kImapMsgForwardedFlag;
offlineObject->SetInitialImapFlags(imapFlags);
delete msgHdr;
}
AddOfflineOp(offlineObject);
}
}
return offlineObject;
}
MsgERR MailDB::SetSourceMailbox(DBOfflineImapOperation *op, const char *mailbox, MessageKey key)
{
MsgERR err = MSG_OfflineIMAPOperationHandle_SetSourceMailbox(op->GetHandle(), m_dbHandle, mailbox, key);
if (err == eCorruptDB)
SetSummaryValid(FALSE);
return err;
}
MsgERR MailDB::ListAllOfflineOpIds(IDArray &outputIds)
{
MessageKey *resultKeys;
int32 numKeys;
MsgERR err = MSG_DBHandle_ListAllOflineOperationKeys(m_dbHandle, &resultKeys, &numKeys);
outputIds.SetArray(resultKeys, numKeys, numKeys);
return err;
}
// List the ids of messages that are going to be deleted via offline playback,
// because we don't need to refetch those headers.
int MailDB::ListAllOfflineDeletes(IDArray &outputIds)
{
MessageKey *deletedKeys;
int32 numKeys;
MsgERR err = MSG_DBHandle_ListAllOfflineDeletedMessageKeys(m_dbHandle, &deletedKeys, &numKeys);
outputIds.Add(deletedKeys, numKeys);
XP_FREE(deletedKeys);
return numKeys;
}
MsgERR MailDB::AddOfflineOp(DBOfflineImapOperation *op)
{
MSG_DBHandle_AddOfflineOperation(m_dbHandle, op->GetHandle());
MSG_FolderInfo *folderInfo = GetFolderInfo();
XP_ASSERT(folderInfo); // it would be bad if we couldn't get the folder info.
if (folderInfo)
{
folderInfo->SetFolderPrefFlags(folderInfo->GetFolderPrefFlags() | MSG_FOLDER_PREF_OFFLINEEVENTS);
if (folderInfo->GetType() == FOLDER_IMAPMAIL)
{
MSG_IMAPFolderInfoMail *imapFolder = (MSG_IMAPFolderInfoMail *) folderInfo;
imapFolder->SetHasOfflineEvents(TRUE);
// where should we clear this flag? At the end of the process events url?
}
}
return eSUCCESS;
}
MsgERR MailDB::DeleteOfflineOp(MessageKey opKey)
{
DBOfflineImapOperation *doomedOp = GetOfflineOpForKey(opKey, FALSE);
if (doomedOp)
{
MSG_DBHandle_RemoveOfflineOperation(m_dbHandle, doomedOp->GetHandle());
delete doomedOp;
}
return eSUCCESS;
}
MsgERR ImapMailDB::SetSummaryValid(XP_Bool valid /* = TRUE */)
{
return MessageDB::SetSummaryValid(valid);
}