pjs/mailnews/base/util/nsMsgUtils.cpp

373 строки
10 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape 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/NPL/
*
* 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 Netscape are
* Copyright (C) 1999 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
* Pierre Phaneuf <pp@ludusdesign.com>
*/
#include "msgCore.h"
#include "nsIMessage.h"
#include "nsIMsgHdr.h"
#include "nsMsgUtils.h"
#include "nsString.h"
#include "nsFileSpec.h"
#include "nsIServiceManager.h"
#include "nsCOMPtr.h"
#include "nsIImapUrl.h"
#include "nsIMailboxUrl.h"
#include "nsINntpUrl.h"
#include "nsMsgNewsCID.h"
#include "nsMsgLocalCID.h"
#include "nsMsgBaseCID.h"
#include "nsMsgImapCID.h"
static NS_DEFINE_CID(kImapUrlCID, NS_IMAPURL_CID);
static NS_DEFINE_CID(kCMailboxUrl, NS_MAILBOXURL_CID);
static NS_DEFINE_CID(kCNntpUrlCID, NS_NNTPURL_CID);
#if defined(DEBUG_sspitzer_) || defined(DEBUG_seth_)
#define DEBUG_NS_MsgHashIfNecessary 1
#endif
nsresult GetMessageServiceProgIDForURI(const char *uri, nsString &progID)
{
nsresult rv = NS_OK;
//Find protocol
nsAutoString uriStr(uri);
PRInt32 pos = uriStr.FindChar(':');
if(pos == -1)
return NS_ERROR_FAILURE;
nsString protocol;
uriStr.Left(protocol, pos);
//Build message service progid
progID = "component://netscape/messenger/messageservice;type=";
progID += protocol;
return rv;
}
nsresult GetMessageServiceFromURI(const char *uri, nsIMsgMessageService **messageService)
{
nsAutoString progID;
nsresult rv;
rv = GetMessageServiceProgIDForURI(uri, progID);
if(NS_SUCCEEDED(rv))
{
rv = nsServiceManager::GetService((const char *) nsCAutoString(progID), NS_GET_IID(nsIMsgMessageService),
(nsISupports**)messageService, nsnull);
}
return rv;
}
nsresult ReleaseMessageServiceFromURI(const char *uri, nsIMsgMessageService *messageService)
{
nsAutoString progID;
nsresult rv;
rv = GetMessageServiceProgIDForURI(uri, progID);
if(NS_SUCCEEDED(rv))
rv = nsServiceManager::ReleaseService(nsCAutoString(progID), messageService);
return rv;
}
nsresult CreateStartupUrl(char *uri, nsIURI** aUrl)
{
nsresult rv = NS_ERROR_NULL_POINTER;
if (!uri || !*uri || !aUrl) return rv;
*aUrl = nsnull;
if (PL_strncasecmp(uri, "imap", 4) == 0)
{
nsCOMPtr<nsIImapUrl> imapUrl;
rv = nsComponentManager::CreateInstance(kImapUrlCID, nsnull,
NS_GET_IID(nsIImapUrl),
getter_AddRefs(imapUrl));
if (NS_SUCCEEDED(rv) && imapUrl)
rv = imapUrl->QueryInterface(NS_GET_IID(nsIURI),
(void**) aUrl);
}
else if (PL_strncasecmp(uri, "mailbox", 7) == 0)
{
nsCOMPtr<nsIMailboxUrl> mailboxUrl;
rv = nsComponentManager::CreateInstance(kCMailboxUrl, nsnull,
NS_GET_IID(nsIMailboxUrl),
getter_AddRefs(mailboxUrl));
if (NS_SUCCEEDED(rv) && mailboxUrl)
rv = mailboxUrl->QueryInterface(NS_GET_IID(nsIURI),
(void**) aUrl);
}
else if (PL_strncasecmp(uri, "news", 4) == 0)
{
nsCOMPtr<nsINntpUrl> nntpUrl;
rv = nsComponentManager::CreateInstance(kCNntpUrlCID, nsnull,
NS_GET_IID(nsINntpUrl),
getter_AddRefs(nntpUrl));
if (NS_SUCCEEDED(rv) && nntpUrl)
rv = nntpUrl->QueryInterface(NS_GET_IID(nsIURI),
(void**) aUrl);
}
if (*aUrl)
(*aUrl)->SetSpec(uri);
return rv;
}
NS_IMPL_ISUPPORTS(nsMessageFromMsgHdrEnumerator, NS_GET_IID(nsISimpleEnumerator))
nsMessageFromMsgHdrEnumerator::nsMessageFromMsgHdrEnumerator(nsISimpleEnumerator *srcEnumerator,
nsIMsgFolder *folder)
{
NS_INIT_REFCNT();
mSrcEnumerator = dont_QueryInterface(srcEnumerator);
mFolder = dont_QueryInterface(folder);
}
nsMessageFromMsgHdrEnumerator::~nsMessageFromMsgHdrEnumerator()
{
//member variables are nsCOMPtr's
}
NS_IMETHODIMP nsMessageFromMsgHdrEnumerator::GetNext(nsISupports **aItem)
{
nsCOMPtr<nsISupports> currentItem;
nsCOMPtr<nsIMsgDBHdr> msgDBHdr;
nsCOMPtr<nsIMessage> message;
nsresult rv;
rv = mSrcEnumerator->GetNext(getter_AddRefs(currentItem));
if(NS_SUCCEEDED(rv))
{
msgDBHdr = do_QueryInterface(currentItem, &rv);
}
if(NS_SUCCEEDED(rv))
{
rv = mFolder->CreateMessageFromMsgDBHdr(msgDBHdr, getter_AddRefs(message));
}
if(NS_SUCCEEDED(rv))
{
currentItem = do_QueryInterface(message, &rv);
*aItem = currentItem;
NS_IF_ADDREF(*aItem);
}
NS_ASSERTION(NS_SUCCEEDED(rv),"getnext shouldn't fail");
return rv;
}
NS_IMETHODIMP nsMessageFromMsgHdrEnumerator::HasMoreElements(PRBool *aResult)
{
return mSrcEnumerator->HasMoreElements(aResult);
}
nsresult NS_NewMessageFromMsgHdrEnumerator(nsISimpleEnumerator *srcEnumerator,
nsIMsgFolder *folder,
nsMessageFromMsgHdrEnumerator **messageEnumerator)
{
if(!messageEnumerator)
return NS_ERROR_NULL_POINTER;
*messageEnumerator = new nsMessageFromMsgHdrEnumerator(srcEnumerator, folder);
if(!messageEnumerator)
return NS_ERROR_OUT_OF_MEMORY;
NS_ADDREF(*messageEnumerator);
return NS_OK;
}
// Where should this live? It's a utility used to convert a string priority, e.g., "High, Low, Normal" to an enum.
// Perhaps we should have an interface that groups together all these utilities...
nsresult NS_MsgGetPriorityFromString(const char *priority, nsMsgPriority *outPriority)
{
if (!outPriority)
return NS_ERROR_NULL_POINTER;
nsMsgPriority retPriority = nsMsgPriorityNormal;
if (PL_strcasestr(priority, "Normal") != NULL)
retPriority = nsMsgPriorityNormal;
else if (PL_strcasestr(priority, "Lowest") != NULL)
retPriority = nsMsgPriorityLowest;
else if (PL_strcasestr(priority, "Highest") != NULL)
retPriority = nsMsgPriorityHighest;
else if (PL_strcasestr(priority, "High") != NULL ||
PL_strcasestr(priority, "Urgent") != NULL)
retPriority = nsMsgPriorityHigh;
else if (PL_strcasestr(priority, "Low") != NULL ||
PL_strcasestr(priority, "Non-urgent") != NULL)
retPriority = nsMsgPriorityLow;
else if (PL_strcasestr(priority, "1") != NULL)
retPriority = nsMsgPriorityHighest;
else if (PL_strcasestr(priority, "2") != NULL)
retPriority = nsMsgPriorityHigh;
else if (PL_strcasestr(priority, "3") != NULL)
retPriority = nsMsgPriorityNormal;
else if (PL_strcasestr(priority, "4") != NULL)
retPriority = nsMsgPriorityLow;
else if (PL_strcasestr(priority, "5") != NULL)
retPriority = nsMsgPriorityLowest;
else
retPriority = nsMsgPriorityNormal;
*outPriority = retPriority;
return NS_OK;
//return nsMsgNoPriority;
}
nsresult NS_MsgGetUntranslatedPriorityName (nsMsgPriority p, nsString *outName)
{
if (!outName)
return NS_ERROR_NULL_POINTER;
switch (p)
{
case nsMsgPriorityNotSet:
case nsMsgPriorityNone:
*outName = "None";
break;
case nsMsgPriorityLowest:
*outName = "Lowest";
break;
case nsMsgPriorityLow:
*outName = "Low";
break;
case nsMsgPriorityNormal:
*outName = "Normal";
break;
case nsMsgPriorityHigh:
*outName = "High";
break;
case nsMsgPriorityHighest:
*outName = "Highest";
break;
default:
NS_ASSERTION(PR_FALSE, "invalid priority value");
}
return NS_OK;
}
/* this used to be XP_StringHash2 from xp_hash.c */
/* phong's linear congruential hash */
static PRUint32 StringHash(const char *ubuf)
{
unsigned char * buf = (unsigned char*) ubuf;
PRUint32 h=1;
while(*buf) {
h = 0x63c63cd9*h + 0x9c39c33d + (int32)*buf;
buf++;
}
return h;
}
nsresult NS_MsgHashIfNecessary(nsCAutoString &name)
{
#if defined(XP_OS2)
const PRUint32 MAX_LEN = 8;
#elif defined(XP_MAC)
const PRUint32 MAX_LEN = 25;
#elif defined(XP_UNIX) || defined(XP_PC) || defined(XP_BEOS)
const PRUint32 MAX_LEN = 55;
#else
#error need_to_define_your_max_filename_length
#endif
nsCAutoString str(name);
#ifdef DEBUG_NS_MsgHashIfNecessary
printf("in: %s\n",str.GetBuffer());
#endif
// Given a name, use either that name, if it fits on our
// filesystem, or a hashified version of it, if the name is too
// long to fit.
char hashedname[MAX_LEN + 1];
PRBool needshash = PL_strlen(str.GetBuffer()) > MAX_LEN;
#if defined(XP_WIN16) || defined(XP_OS2)
if (!needshash) {
needshash = PL_strchr(str.GetBuffer(), '.') != NULL ||
PL_strchr(str.GetBuffer(), ':') != NULL;
}
#endif
PL_strncpy(hashedname, str.GetBuffer(), MAX_LEN + 1);
if (needshash) {
PR_snprintf(hashedname + MAX_LEN - 8, 9, "%08lx",
(unsigned long) StringHash(str.GetBuffer()));
}
name = hashedname;
#ifdef DEBUG_NS_MsgHashIfNecessary
printf("out: %s\n",hashedname);
#endif
return NS_OK;
}
nsresult NS_MsgCreatePathStringFromFolderURI(const char *folderURI, nsCString& pathString)
{
nsCAutoString oldPath(folderURI);
nsCAutoString pathPiece;
PRInt32 startSlashPos = oldPath.FindChar('/');
PRInt32 endSlashPos = (startSlashPos >= 0)
? oldPath.FindChar('/', PR_FALSE, startSlashPos + 1) - 1 : oldPath.Length() - 1;
if (endSlashPos == -1)
endSlashPos = oldPath.Length();
// trick to make sure we only add the path to the first n-1 folders
PRBool haveFirst=PR_FALSE;
while (startSlashPos != -1) {
oldPath.Mid(pathPiece, startSlashPos + 1, endSlashPos - startSlashPos);
// skip leading '/' (and other // style things)
if (pathPiece.Length() > 0) {
// add .sbd onto the previous path
if (haveFirst) {
pathString+=".sbd";
pathString += "/";
}
NS_MsgHashIfNecessary(pathPiece);
pathString += pathPiece;
haveFirst=PR_TRUE;
}
// look for the next slash
startSlashPos = endSlashPos + 1;
endSlashPos = (startSlashPos >= 0)
? oldPath.FindChar('/', PR_FALSE, startSlashPos + 1) - 1: oldPath.Length() - 1;
if (endSlashPos == -1)
endSlashPos = oldPath.Length();
if (startSlashPos == endSlashPos)
break;
}
return NS_OK;
}