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/*
** Copyright 2002-2006, Double Precision Inc.
**
** See COPYING for distribution information.
*/
#include "libmail_config.h"
#include "mboxgetmessage.H"
#include "file.H"
#include "rfc2045/rfc2045.h"
#include <string.h>
#include <errno.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
using namespace std;
mail::mbox::GenericGetMessageTask::GenericGetMessageTask(mail::mbox &mboxAccount,
mail::callback
&callbackArg,
string uidArg,
size_t
messageNumberArg,
bool peekArg,
int *fdretArg,
struct rfc2045
**structretArg)
: LockTask(mboxAccount, callbackArg),
uid(uidArg),
messageNumber(messageNumberArg),
peek(peekArg),
fdret(fdretArg),
structret(structretArg),
tempFp(NULL),
tempStruct(NULL)
{
}
mail::mbox::GenericGetMessageTask::~GenericGetMessageTask()
{
// tempFp/tempStruct should be null, if all's well. If not, clean up
// after outselves.
if (tempFp)
fclose(tempFp);
if (tempStruct)
rfc2045_free(tempStruct);
}
bool mail::mbox::GenericGetMessageTask::locked(mail::file &file)
{
if (!mboxAccount.verifyUid(uid, messageNumber, callback))
{
done();
return true;
}
mail::ptr<mail::mbox> me= &mboxAccount;
size_t realMsgNum=mboxAccount.uidmap.find(uid)->second;
off_t startingPos=mboxAccount.folderMessageIndex[realMsgNum]
.startingPos;
if (fseek(file, startingPos, SEEK_SET) < 0 ||
(tempFp=tmpfile()) == NULL ||
(tempStruct=rfc2045_alloc()) == NULL)
{
fail(strerror(errno));
return true;
}
off_t endingPos=0;
if (realMsgNum + 1 >= mboxAccount.folderMessageIndex.size())
{
struct stat stat_buf;
if (fstat(fileno(static_cast<FILE *>(file)), &stat_buf) < 0)
endingPos=stat_buf.st_size;
}
else
endingPos=mboxAccount.folderMessageIndex[realMsgNum+1]
.startingPos;
if (endingPos >= startingPos)
endingPos -= startingPos;
else
endingPos=0;
off_t nextUpdatePos=startingPos;
bool firstLine=true;
while (!feof(file) && !me.isDestroyed())
{
off_t pos=file.tell();
// Progress update every 10K
if (pos >= nextUpdatePos)
{
nextUpdatePos=pos + 10000;
callback.reportProgress(pos - startingPos, endingPos,
0, 1);
}
string line=file.getline();
if (line.size() == 0 && feof(file))
break;
if (strncmp(line.c_str(), "From ", 5) == 0)
{
if (firstLine)
continue;
break;
}
if (firstLine)
{
firstLine=false;
if (mail::mboxMagicTag(line,
mboxAccount.keywordHashtable)
.good())
continue; // Ignore magic tag line.
}
const char *p=line.c_str();
if (*p == '>')
{
while (*p == '>')
p++;
if (strncmp(p, "From ", 5) == 0)
line=line.substr(1);
}
line += "\n";
if (fwrite(&line[0], line.size(), 1, tempFp) != 1)
; // Ignore gcc warning
rfc2045_parse(tempStruct, &line[0], line.size());
}
if (fflush(tempFp) < 0 || ferror(tempFp) < 0)
{
fail(strerror(errno));
return true;
}
mboxAccount.cachedMessageUid="";
if (mboxAccount.cachedMessageFp)
fclose(mboxAccount.cachedMessageFp);
if (mboxAccount.cachedMessageRfcp)
rfc2045_free(mboxAccount.cachedMessageRfcp);
mboxAccount.cachedMessageFp=NULL;
mboxAccount.cachedMessageRfcp=NULL;
mboxAccount.cachedMessageUid=uid;
mboxAccount.cachedMessageFp=tempFp;
mboxAccount.cachedMessageRfcp=tempStruct;
fcntl(fileno(tempFp), F_SETFD, FD_CLOEXEC);
tempFp=NULL;
tempStruct=NULL;
if (fdret)
*fdret=fileno(mboxAccount.cachedMessageFp);
if (structret)
*structret=mboxAccount.cachedMessageRfcp;
if (mboxAccount.currentFolderCallback && !peek &&
mboxAccount.index[messageNumber].unread)
{
mboxAccount.index[messageNumber].unread=false;
mboxAccount.folderDirty=true;
mboxAccount.currentFolderCallback->messageChanged(messageNumber);
}
callback.success("OK");
done();
return true;
}
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