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kmail/kmmsgbase.cpp

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// kmmsgbase.cpp
#include <kdebug.h>
#include <kglobal.h>
#include <klocale.h>
#include <kcharsets.h>
#include <mimelib/mimepp.h>
#include <qregexp.h>
#include <qtextcodec.h>
#include <qstringlist.h>
#include <kmfolder.h>
#include <kmheaders.h>
#include <kmmsgdict.h>
#include <ctype.h>
#include <stdlib.h>
#include <config.h>
#if HAVE_BYTESWAP_H
#include <byteswap.h>
#endif
// We define functions as kmail_swap_NN so that we don't get compile errors
// on platforms where bswap_NN happens to be a function instead of a define.
/* Swap bytes in 16 bit value. */
#ifdef bswap_16
#define kmail_swap_16(x) bswap_16(x)
#else
#define kmail_swap_16(x) \
((((x) >> 8) & 0xff) | (((x) & 0xff) << 8))
#endif
/* Swap bytes in 32 bit value. */
#ifdef bswap_32
#define kmail_swap_32(x) bswap_32(x)
#else
#define kmail_swap_32(x) \
((((x) & 0xff000000) >> 24) | (((x) & 0x00ff0000) >> 8) | \
(((x) & 0x0000ff00) << 8) | (((x) & 0x000000ff) << 24))
#endif
/* Swap bytes in 64 bit value. */
#ifdef bswap_64
#define kmail_swap_64(x) bswap_64(x)
#else
#define kmail_swap_64(x) \
((((x) & 0xff00000000000000ull) >> 56) \
| (((x) & 0x00ff000000000000ull) >> 40) \
| (((x) & 0x0000ff0000000000ull) >> 24) \
| (((x) & 0x000000ff00000000ull) >> 8) \
| (((x) & 0x00000000ff000000ull) << 8) \
| (((x) & 0x0000000000ff0000ull) << 24) \
| (((x) & 0x000000000000ff00ull) << 40) \
| (((x) & 0x00000000000000ffull) << 56))
#endif
static KMMsgStatus sStatusList[] =
{
KMMsgStatusDeleted, KMMsgStatusNew,
KMMsgStatusUnread, KMMsgStatusOld,
KMMsgStatusRead, KMMsgStatusReplied,
KMMsgStatusSent, KMMsgStatusQueued,
KMMsgStatusFlag,
KMMsgStatusUnknown /* "Unknown" must be at the *end* of the list */
};
static const int NUM_STATUSLIST = sizeof sStatusList / sizeof *sStatusList;
//-----------------------------------------------------------------------------
KMMsgBase::KMMsgBase(KMFolder* aParent)
{
mParent = aParent;
mDirty = FALSE;
mIndexOffset = mIndexLength = 0;
}
//-----------------------------------------------------------------------------
KMMsgBase::~KMMsgBase()
{
}
//-----------------------------------------------------------------------------
void KMMsgBase::assign(const KMMsgBase* other)
{
mParent = other->mParent;
mDirty = other->mDirty;
mIndexOffset = other->mIndexOffset;
mIndexLength = other->mIndexLength;
}
//-----------------------------------------------------------------------------
KMMsgBase& KMMsgBase::operator=(const KMMsgBase& other)
{
assign(&other);
return *this;
}
//-----------------------------------------------------------------------------
bool KMMsgBase::isMessage(void) const
{
return FALSE;
}
//-----------------------------------------------------------------------------
void KMMsgBase::setStatus(const KMMsgStatus aStatus, int idx)
{
if (mParent)
mParent->msgStatusChanged( status(), aStatus );
mDirty = TRUE;
if (mParent)
mParent->headerOfMsgChanged(this, idx);
}
//-----------------------------------------------------------------------------
void KMMsgBase::setStatus(const char* aStatusStr, const char* aXStatusStr)
{
setStatus(KMMsgStatusUnknown);
// first try to find status from "X-Status" field if given
if (aXStatusStr) {
for (int i=0; i<NUM_STATUSLIST-1; i++) {
if (strchr(aXStatusStr, (char)sStatusList[i])) {
setStatus(sStatusList[i]);
break;
}
}
}
// if not successful then use the "Status" field
if (status() == KMMsgStatusUnknown)
{
if (aStatusStr && ((aStatusStr[0]==(char)KMMsgStatusRead && aStatusStr[1]==(char)KMMsgStatusOld) ||
(aStatusStr[0]==(char)KMMsgStatusOld && aStatusStr[1]==(char)KMMsgStatusRead)))
setStatus(KMMsgStatusOld);
else if (aStatusStr && aStatusStr[0]==(char)KMMsgStatusRead)
setStatus(KMMsgStatusRead);
else if (aStatusStr && aStatusStr[0]==(char)KMMsgStatusDeleted)
setStatus(KMMsgStatusDeleted);
else
setStatus(KMMsgStatusNew);
}
}
//-----------------------------------------------------------------------------
bool KMMsgBase::isUnread(void) const
{
KMMsgStatus st = status();
return (st==KMMsgStatusNew || st==KMMsgStatusUnread);
}
//-----------------------------------------------------------------------------
bool KMMsgBase::isNew(void) const
{
KMMsgStatus st = status();
return (st==KMMsgStatusNew);
}
//-----------------------------------------------------------------------------
const char* KMMsgBase::statusToStr(KMMsgStatus aStatus)
{
static char sstr[2];
sstr[0] = (char)aStatus;
sstr[1] = '\0';
return sstr;
}
//-----------------------------------------------------------------------------
void KMMsgBase::setDate(const QCString& aDateStr)
{
DwDateTime dwDate;
dwDate.FromString(aDateStr);
dwDate.Parse();
setDate(dwDate.AsUnixTime());
}
//-----------------------------------------------------------------------------
QString KMMsgBase::dateStr(void) const
{
time_t d = date();
return KMHeaders::fancyDate(d);
}
//-----------------------------------------------------------------------------
QString KMMsgBase::skipKeyword(const QString& aStr, QChar sepChar,
bool* hasKeyword)
{
unsigned int i = 0, maxChars = 3;
QString str = aStr;
while (str[0] == ' ') str.remove(0,1);
if (hasKeyword) *hasKeyword=FALSE;
for (i=0; i < str.length() && i < maxChars; i++)
{
if (str[i] < 'A' || str[i] == sepChar) break;
}
if (str[i] == sepChar) // skip following spaces too
{
do {
i++;
} while (str[i] == ' ');
if (hasKeyword) *hasKeyword=TRUE;
return str.mid(i);
}
return str;
}
//-----------------------------------------------------------------------------
QTextCodec* KMMsgBase::codecForName(const QCString& _str)
{
if (_str.isEmpty()) return NULL;
return KGlobal::charsets()->codecForName(_str.lower());
}
//-----------------------------------------------------------------------------
const QCString KMMsgBase::toUsAscii(const QString& _str, bool *ok)
{
bool all_ok =true;
QString result = _str;
int len = result.length();
for (int i = 0; i < len; i++)
if (result.at(i).unicode() >= 128) {
result.at(i) = '?';
all_ok = false;
}
if (ok)
*ok = all_ok;
return result.latin1();
}
//-----------------------------------------------------------------------------
QStringList KMMsgBase::supportedEncodings(bool usAscii)
{
QStringList encodingNames = KGlobal::charsets()->availableEncodingNames();
QStringList encodings;
QMap<QString,bool> mimeNames;
for (QStringList::Iterator it = encodingNames.begin();
it != encodingNames.end(); it++)
{
QTextCodec *codec = KGlobal::charsets()->codecForName(*it);
QString mimeName = (codec) ? QString(codec->mimeName()).lower() : (*it);
if (mimeNames.find(mimeName) == mimeNames.end())
{
encodings.append(KGlobal::charsets()->languageForEncoding(*it)
+ " ( " + mimeName + " )");
mimeNames.insert(mimeName, TRUE);
}
}
encodings.sort();
if (usAscii) encodings.prepend(KGlobal::charsets()
->languageForEncoding("us-ascii") + " ( us-ascii )");
return encodings;
}
//-----------------------------------------------------------------------------
QString KMMsgBase::decodeRFC2047String(const QCString& aStr)
{
QString result;
QCString charset;
char *pos, *beg, *end, *mid=0;
QCString str, cstr, LWSP_buffer;
char encoding='Q', ch;
bool valid, lastWasEncodedWord=FALSE;
const int maxLen=200;
int i;
if (aStr.find("=?") < 0)
{
QString str = kernel->networkCodec()->toUnicode(aStr);
if (str.find('\n') == -1) return str;
QString str2((QChar*)NULL, str.length());
uint i = 0;
while (i < str.length())
{
if (str[i] == '\n')
{
str2 += " ";
i += 2;
} else {
str2 += str[i];
i++;
}
}
return str2;
}
for (pos=aStr.data(); *pos; pos++)
{
// line unfolding
if ( pos[0] == '\r' && pos[1] == '\n' ) {
pos++;
continue;
}
if ( pos[0] == '\n' )
continue;
// collect LWSP after encoded-words,
// because we might need to throw it out
// (when the next word is an encoded-word)
if ( lastWasEncodedWord && ( pos[0] == ' ' || pos[0] == '\t' ) ) {
LWSP_buffer += pos[0];
continue;
}
// verbatimly copy normal text
if (pos[0]!='=' || pos[1]!='?')
{
result += LWSP_buffer + pos[0];
LWSP_buffer = 0;
lastWasEncodedWord = FALSE;
continue;
}
// found possible encoded-word
beg = pos+2;
end = beg;
valid = TRUE;
// parse charset name
charset = "";
for (i=2,pos+=2; i<maxLen && (*pos!='?'&&(*pos==' '||ispunct(*pos)||isalnum(*pos))); i++)
{
charset += *pos;
pos++;
}
if (*pos!='?' || i<4 || i>=maxLen) valid = FALSE;
else
{
// get encoding and check delimiting question marks
encoding = toupper(pos[1]);
if (pos[2]!='?' || (encoding!='Q' && encoding!='B'))
valid = FALSE;
pos+=3;
i+=3;
}
if (valid)
{
mid = pos;
// search for end of encoded part
while (i<maxLen && *pos && !(*pos=='?' && *(pos+1)=='='))
{
i++;
pos++;
}
end = pos+2;//end now points to the first char after the encoded string
if (i>=maxLen || !*pos) valid = FALSE;
}
if (valid)
{
// valid encoding: decode and throw away separating LWSP
ch = *pos;
*pos = '\0';
str = QCString(mid).left((int)(mid - pos - 1));
if (encoding == 'Q')
{
// decode quoted printable text
for (i=str.length()-1; i>=0; i--)
if (str[i]=='_') str[i]=' ';
cstr = decodeQuotedPrintable(str);
}
else
{
// decode base64 text
cstr = decodeBase64(str);
}
QTextCodec *codec = codecForName(charset);
if (!codec) codec = kernel->networkCodec();
result += codec->toUnicode(cstr);
lastWasEncodedWord = TRUE;
*pos = ch;
pos = end -1;
}
else
{
// invalid encoding, keep separating LWSP.
//result += "=?";
//pos = beg -1; // because pos gets increased shortly afterwards
pos = beg - 2;
result += LWSP_buffer;
result += *pos++;
result += *pos;
lastWasEncodedWord = FALSE;
}
LWSP_buffer = 0;
}
return result;
}
//-----------------------------------------------------------------------------
const QString especials = "()<>@,;:\"/[]?.= \033";
const QString dontQuote = "\"()<>,";
QCString KMMsgBase::encodeRFC2047Quoted(const QCString& aStr, bool base64)
{
if (base64)
return encodeBase64(aStr).replace(QRegExp("\n"),"");
QCString result;
unsigned char ch, hex;
for (unsigned int i = 0; i < aStr.length(); i++)
{
ch = aStr.at(i);
if (ch >= 128 || ch == '_' || especials.find(aStr.at(i)) != -1)
{
result += "=";
hex = ((ch & 0xF0) >> 4) + 48;
if (hex >= 58) hex += 7;
result += hex;
hex = (ch & 0x0F) + 48;
if (hex >= 58) hex += 7;
result += hex;
} else {
result += aStr.at(i);
}
}
return result;
}
QCString KMMsgBase::encodeRFC2047String(const QString& _str,
const QCString& charset)
{
if (_str.isEmpty()) return QCString();
if (charset == "us-ascii") return toUsAscii(_str);
QCString cset;
if (charset.isEmpty()) cset = QCString(kernel->networkCodec()->mimeName()).lower();
else cset = charset;
QTextCodec *codec = codecForName(cset);
if (!codec) codec = kernel->networkCodec();
unsigned int nonAscii = 0;
for (unsigned int i = 0; i < _str.length(); i++)
if (_str.at(i).unicode() >= 128) nonAscii++;
bool useBase64 = (nonAscii * 6 > _str.length());
unsigned int start, stop, p, pos = 0, encLength;
QCString result;
bool breakLine;
const unsigned int maxLen = 75 - 7 - cset.length();
while (pos < _str.length())
{
start = pos; p = pos;
while (p < _str.length())
{
if (_str.at(p) == ' ' || dontQuote.find(_str.at(p)) != -1) start = p + 1;
if (_str.at(p).unicode() >= 128 || _str.at(p) < ' ') break;
p++;
}
if (p < _str.length())
{
while (dontQuote.find(_str.at(start)) != -1) start++;
stop = start;
while (stop < _str.length() && dontQuote.find(_str.at(stop)) == -1)
stop++;
result += _str.mid(pos, start - pos).latin1();
encLength = encodeRFC2047Quoted(codec->fromUnicode(_str.
mid(start, stop - start)), useBase64).length();
breakLine = (encLength > maxLen);
if (breakLine)
{
int dif = (stop - start) / 2;
int step = dif;
while (abs(step) > 1)
{
encLength = encodeRFC2047Quoted(codec->fromUnicode(_str.
mid(start, dif)), useBase64).length();
step = (encLength > maxLen) ? (-abs(step) / 2) : (abs(step) / 2);
dif += step;
}
stop = start + dif;
}
p = stop;
while (p > start && _str.at(p) != ' ') p--;
if (p > start) stop = p;
if (result.right(3) == "?= ") start--;
if (result.right(5) == "?=\n ") {
start--; result.truncate(result.length() - 1);
}
int lastNewLine = result.findRev("\n ");
if (!result.mid(lastNewLine).stripWhiteSpace().isEmpty()
&& result.length() - lastNewLine + encLength + 2 > maxLen)
result += "\n ";
result += "=?";
result += cset;
result += (useBase64) ? "?b?" : "?q?";
result += encodeRFC2047Quoted(codec->fromUnicode(_str.mid(start,
stop - start)), useBase64);
result += "?=";
if (breakLine) result += "\n ";
pos = stop;
} else {
result += _str.mid(pos).latin1();
break;
}
}
return result;
}
//-----------------------------------------------------------------------------
QCString KMMsgBase::encodeRFC2231String(const QString& _str,
const QCString& charset)
{
if (_str.isEmpty()) return QCString();
QCString cset;
if (charset.isEmpty()) cset = QCString(kernel->networkCodec()->mimeName()).lower();
else cset = charset;
QTextCodec *codec = codecForName(cset);
QCString latin;
if (charset == "us-ascii") latin = toUsAscii(_str);
else if (codec) latin = codec->fromUnicode(_str);
else latin = _str.local8Bit();
char *l = latin.data();
char hexcode;
int i;
bool quote;
while (*l)
{
if (*l < 32) break;
l++;
}
if (!*l) return latin;
QCString result = cset + "''";
l = latin.data();
while (*l)
{
quote = *l < 0;
for (i = 0; i < 17; i++) if (*l == especials[i]) quote = true;
if (quote)
{
result += "%";
hexcode = ((*l & 0xF0) >> 4) + 48;
if (hexcode >= 58) hexcode += 7;
result += hexcode;
hexcode = (*l & 0x0F) + 48;
if (hexcode >= 58) hexcode += 7;
result += hexcode;
} else {
result += *l;
}
l++;
}
return result;
}
//-----------------------------------------------------------------------------
QString KMMsgBase::decodeRFC2231String(const QCString& _str)
{
int p = _str.find("'");
if (p < 0) return kernel->networkCodec()->toUnicode(_str);
QCString charset = _str.left(p);
QCString st = _str.mid(_str.findRev("'") + 1);
char ch, ch2;
p = 0;
while (p < (int)st.length())
{
if (st.at(p) == 37)
{
ch = st.at(p+1) - 48;
if (ch > 16) ch -= 7;
ch2 = st.at(p+2) - 48;
if (ch2 > 16) ch2 -= 7;
st.at(p) = ch * 16 + ch2;
st.remove( p+1, 2 );
}
p++;
}
QString result;
QTextCodec *codec = codecForName(charset);
if (!codec) codec = kernel->networkCodec();
if (codec) result = codec->toUnicode(st);
else result = kernel->networkCodec()->toUnicode(st);
return result;
}
//-----------------------------------------------------------------------------
QCString KMMsgBase::autoDetectCharset(const QCString &_encoding, const QStringList &encodingList, const QString &text)
{
QStringList charsets = encodingList;
if (!_encoding.isEmpty())
{
QString currentCharset = QString::fromLatin1(_encoding);
charsets.remove(currentCharset);
charsets.prepend(currentCharset);
}
QStringList::ConstIterator it = charsets.begin();
for (; it != charsets.end(); ++it)
{
QCString encoding = (*it).latin1();
if (encoding == "locale")
encoding = QCString(kernel->networkCodec()->mimeName()).lower();
if (encoding == "us-ascii") {
bool ok;
(void) KMMsgBase::toUsAscii(text, &ok);
if (ok)
return encoding;
}
else
{
QTextCodec *codec = KMMsgBase::codecForName(encoding);
if (!codec) {
kdDebug(5006) << "Auto-Charset: Something is wrong and I can not get a codec. [" << encoding << "]" << endl;
} else {
if (codec->canEncode(text))
return encoding;
}
}
}
return 0;
}
//-----------------------------------------------------------------------------
QCString KMMsgBase::decodeQuotedPrintable(const QCString& aStr)
{
QCString bStr = aStr;
if (aStr.isNull())
bStr = "";
DwString dwsrc(bStr.data());
DwString dwdest;
DwDecodeQuotedPrintable(dwsrc, dwdest);
return dwdest.c_str();
}
//-----------------------------------------------------------------------------
QCString KMMsgBase::encodeQuotedPrintable(const QCString& aStr)
{
QCString bStr = aStr;
if (aStr.isNull())
bStr = "";
DwString dwsrc(bStr.data(), bStr.length());
DwString dwdest;
QCString result;
DwEncodeQuotedPrintable(dwsrc, dwdest);
result = dwdest.c_str();
return result;
}
//-----------------------------------------------------------------------------
QCString KMMsgBase::decodeBase64(const QCString& aStr)
{
QCString bStr = aStr;
if (aStr.isNull())
bStr = "";
while (bStr.length() < 16) bStr += "=";
DwString dwsrc(bStr.data(), bStr.length());
DwString dwdest;
QCString result;
DwDecodeBase64(dwsrc, dwdest);
result = dwdest.c_str();
return result;
}
//-----------------------------------------------------------------------------
QCString KMMsgBase::encodeBase64(const QCString& aStr)
{
QCString bStr = aStr;
if (aStr.isNull())
bStr = "";
DwString dwsrc(bStr.data(), bStr.length());
DwString dwdest;
QCString result;
DwEncodeBase64(dwsrc, dwdest);
result = dwdest.c_str();
return result;
}
//-----------------------------------------------------------------------------
unsigned long KMMsgBase::getMsgSerNum() const
{
unsigned long msn = 0;
if (mParent) {
int index = mParent->find((KMMsgBasePtr)this);
msn = kernel->msgDict()->getMsgSerNum(mParent, index);
}
return msn;
}
//-----------------------------------------------------------------------------
void swapEndian(QString &str)
{
ushort us;
uint len = str.length();
for (uint i = 0; i < len; i++)
{
us = str[i].unicode();
str[i] = QChar(kmail_swap_16(us));
}
}
//-----------------------------------------------------------------------------
static int g_chunk_length = 0, g_chunk_offset=0;
static uchar *g_chunk = NULL;
#define COPY_DATA(x, length) do { \
if(g_chunk_offset + ((int)length) > g_chunk_length) {\
g_chunk_offset = g_chunk_length; \
kdDebug(5006) << "This should never happen.. " << __FILE__ << ":" << __LINE__ << endl; \
memset(x, length, '\0'); \
} else { \
memcpy(x, g_chunk+g_chunk_offset, length); \
g_chunk_offset += length; \
} } while(0)
#define COPY_HEADER_TYPE(x) Q_ASSERT(sizeof(x) == sizeof(Q_UINT32)); COPY_DATA(&x, sizeof(x));
#define COPY_HEADER_LEN(x) Q_ASSERT(sizeof(x) == sizeof(Q_UINT16)); COPY_DATA(&x, sizeof(x));
//-----------------------------------------------------------------------------
QString KMMsgBase::getStringPart(MsgPartType t) const
{
QString ret("");
g_chunk_offset = 0;
bool using_mmap = FALSE;
bool swapByteOrder = mParent->indexSwapByteOrder();
if (mParent->indexStreamBasePtr()) {
if (g_chunk)
free(g_chunk);
using_mmap = TRUE;
g_chunk = mParent->indexStreamBasePtr() + mIndexOffset;
g_chunk_length = mIndexLength;
} else {
if(!mParent->mIndexStream)
return ret;
if (g_chunk_length < mIndexLength)
g_chunk = (uchar *)realloc(g_chunk, g_chunk_length = mIndexLength);
int first_off=ftell(mParent->mIndexStream);
fseek(mParent->mIndexStream, mIndexOffset, SEEK_SET);
fread( g_chunk, mIndexLength, 1, mParent->mIndexStream);
fseek(mParent->mIndexStream, first_off, SEEK_SET);
}
MsgPartType type;
Q_UINT16 l;
while(g_chunk_offset < mIndexLength) {
Q_UINT32 tmp;
COPY_HEADER_TYPE(tmp);
COPY_HEADER_LEN(l);
if (swapByteOrder)
{
tmp = kmail_swap_32(tmp);
l = kmail_swap_16(l);
}
type = (MsgPartType) tmp;
if(g_chunk_offset + l > mIndexLength) {
kdDebug(5006) << "This should never happen.. " << __FILE__ << ":" << __LINE__ << endl;
break;
}
if(type == t) {
// This works because the QString constructor does a memcpy.
// Otherwise we would need to be concerned about the alignment.
if(l)
ret = QString((QChar *)(g_chunk + g_chunk_offset), l/2);
break;
}
g_chunk_offset += l;
}
if(using_mmap) {
g_chunk_length = 0;
g_chunk = NULL;
}
// Normally we need to swap the byte order because the QStrings are written
// in the style of Qt2 (MSB -> network ordered).
// QStrings in Qt3 expect host ordering.
// On e.g. Intel host ordering is LSB, on e.g. Sparc it is MSB.
#ifndef WORDS_BIGENDIAN
// #warning Byte order is little endian (swap is true)
swapEndian(ret);
#else
// #warning Byte order is big endian (swap is false)
#endif
return ret;
}
//-----------------------------------------------------------------------------
unsigned long KMMsgBase::getLongPart(MsgPartType t) const
{
unsigned long ret = 0;
g_chunk_offset = 0;
bool using_mmap = FALSE;
int sizeOfLong = mParent->indexSizeOfLong();
bool swapByteOrder = mParent->indexSwapByteOrder();
if (mParent->indexStreamBasePtr()) {
if (g_chunk)
free(g_chunk);
using_mmap = TRUE;
g_chunk = mParent->indexStreamBasePtr() + mIndexOffset;
g_chunk_length = mIndexLength;
} else {
if (!mParent->mIndexStream)
return ret;
assert(mIndexLength >= 0);
if (g_chunk_length < mIndexLength)
g_chunk = (uchar *)realloc(g_chunk, g_chunk_length = mIndexLength);
int first_off=ftell(mParent->mIndexStream);
fseek(mParent->mIndexStream, mIndexOffset, SEEK_SET);
fread( g_chunk, mIndexLength, 1, mParent->mIndexStream);
fseek(mParent->mIndexStream, first_off, SEEK_SET);
}
MsgPartType type;
Q_UINT16 l;
while (g_chunk_offset < mIndexLength) {
Q_UINT32 tmp;
COPY_HEADER_TYPE(tmp);
COPY_HEADER_LEN(l);
if (swapByteOrder)
{
tmp = kmail_swap_32(tmp);
l = kmail_swap_16(l);
}
type = (MsgPartType) tmp;
if (g_chunk_offset + l > mIndexLength) {
kdDebug(5006) << "This should never happen.. " << __FILE__ << ":" << __LINE__ << endl;
break;
}
if(type == t) {
assert(sizeOfLong == l);
if (sizeOfLong == sizeof(ret))
{
COPY_DATA(&ret, sizeof(ret));
if (swapByteOrder)
{
if (sizeof(ret) == 4)
ret = kmail_swap_32(ret);
else
ret = kmail_swap_64(ret);
}
}
else if (sizeOfLong == 4)
{
// Long is stored as 4 bytes in index file, sizeof(long) = 8
Q_UINT32 ret_32;
COPY_DATA(&ret_32, sizeof(ret_32));
if (swapByteOrder)
ret_32 = kmail_swap_32(ret_32);
ret = ret_32;
}
else if (sizeOfLong == 8)
{
// Long is stored as 8 bytes in index file, sizeof(long) = 4
Q_UINT32 ret_1;
Q_UINT32 ret_2;
COPY_DATA(&ret_1, sizeof(ret_1));
COPY_DATA(&ret_2, sizeof(ret_2));
if (!swapByteOrder)
{
// Index file order is the same as the order of this CPU.
#ifndef WORDS_BIGENDIAN
// Index file order is little endian
ret = ret_1; // We drop the 4 most significant bytes
#else
// Index file order is big endian
ret = ret_2; // We drop the 4 most significant bytes
#endif
}
else
{
// Index file order is different from this CPU.
#ifndef WORDS_BIGENDIAN
// Index file order is big endian
ret = ret_2; // We drop the 4 most significant bytes
#else
// Index file order is little endian
ret = ret_1; // We drop the 4 most significant bytes
#endif
// We swap the result to host order.
ret = kmail_swap_32(ret);
}
}
break;
}
g_chunk_offset += l;
}
if(using_mmap) {
g_chunk_length = 0;
g_chunk = NULL;
}
return ret;
}
#undef COPY_DATA
//-----------------------------------------------------------------------------
const uchar *KMMsgBase::asIndexString(int &length) const
{
unsigned int csize = 256;
static uchar *ret = NULL; //different static buffer here for we may use the other buffer in the functions below
if(!ret)
ret = (uchar *)malloc(csize);
length = 0;
#define STORE_DATA_LEN(type, x, len) do { \
int len2 = (len > 256) ? 256 : len; \
if(csize < (length + (len2 + sizeof(short) + sizeof(MsgPartType)))) \
ret = (uchar *)realloc(ret, csize += len2+sizeof(short)+sizeof(MsgPartType)); \
Q_UINT32 t = (Q_UINT32) type; memcpy(ret+length, &t, sizeof(t)); \
Q_UINT16 l = len2; memcpy(ret+length+sizeof(t), &l, sizeof(l)); \
memcpy(ret+length+sizeof(t)+sizeof(l), x, len2); \
length += len2+sizeof(t)+sizeof(l); \
} while(0)
#define STORE_DATA(type, x) STORE_DATA_LEN(type, &x, sizeof(x))
#ifndef WORDS_BIGENDIAN
// #warning Byte order is little endian (call swapEndian)
#define SWAP_TO_NETWORK_ORDER(x) swapEndian(x)
#else
// #warning Byte order is big endian
#define SWAP_TO_NETWORK_ORDER(x)
#endif
unsigned long tmp;
QString tmp_str;
//these is at the beginning because it is queried quite often
tmp_str = msgIdMD5().stripWhiteSpace();
SWAP_TO_NETWORK_ORDER(tmp_str);
STORE_DATA_LEN(MsgIdMD5Part, tmp_str.unicode(), tmp_str.length() * 2);
tmp = status();
STORE_DATA(MsgStatusPart, tmp);
//these are completely arbitrary order
tmp_str = fromStrip().stripWhiteSpace();
SWAP_TO_NETWORK_ORDER(tmp_str);
STORE_DATA_LEN(MsgFromPart, tmp_str.unicode(), tmp_str.length() * 2);
tmp_str = subject().stripWhiteSpace();
SWAP_TO_NETWORK_ORDER(tmp_str);
STORE_DATA_LEN(MsgSubjectPart, tmp_str.unicode(), tmp_str.length() * 2);
tmp_str = toStrip().stripWhiteSpace();
SWAP_TO_NETWORK_ORDER(tmp_str);
STORE_DATA_LEN(MsgToPart, tmp_str.unicode(), tmp_str.length() * 2);
tmp_str = replyToIdMD5().stripWhiteSpace();
SWAP_TO_NETWORK_ORDER(tmp_str);
STORE_DATA_LEN(MsgReplyToIdMD5Part, tmp_str.unicode(), tmp_str.length() * 2);
tmp_str = xmark().stripWhiteSpace();
SWAP_TO_NETWORK_ORDER(tmp_str);
STORE_DATA_LEN(MsgXMarkPart, tmp_str.unicode(), tmp_str.length() * 2);
tmp_str = fileName().stripWhiteSpace();
SWAP_TO_NETWORK_ORDER(tmp_str);
STORE_DATA_LEN(MsgFilePart, tmp_str.unicode(), tmp_str.length() * 2);
tmp = msgSize();
STORE_DATA(MsgSizePart, tmp);
tmp = folderOffset();
STORE_DATA(MsgOffsetPart, tmp);
tmp = date();
STORE_DATA(MsgDatePart, tmp);
#undef STORE_DATA_LEN
return ret;
}
bool KMMsgBase::syncIndexString() const
{
if(!dirty())
return TRUE;
int len;
const uchar *buffer = asIndexString(len);
if (len == mIndexLength) {
Q_ASSERT(mParent->mIndexStream);
fseek(mParent->mIndexStream, mIndexOffset, SEEK_SET);
fwrite( buffer, len, 1, mParent->mIndexStream);
return TRUE;
}
return FALSE;
}