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#include "stdafx.h"
#include "MraOfflineMsg.h"
#include "MraConstans.h"
#define LF "\n"
#define LFLF "\n\n"
#define CRLF "\r\n"
#define CRLFCRLF "\r\n\r\n"
static DWORD MraOfflineMessageConvertTime(INTERNET_TIME *pitTime)
{
SYSTEMTIME stTime, stUniversalTime;
TIME_ZONE_INFORMATION tziTimeZoneMailRu = {0};
tziTimeZoneMailRu.Bias = pitTime->lTimeZone/100*60;
tziTimeZoneMailRu.DaylightBias = pitTime->lTimeZone%100;
SystemTimeToTzSpecificLocalTime(&tziTimeZoneMailRu, &pitTime->stTime, &stUniversalTime);
SystemTimeToTzSpecificLocalTime(nullptr, &stUniversalTime, &stTime);
return (DWORD)MakeTime32FromLocalSystemTime(&stTime);
}
static DWORD MraOfflineMessageGetHeaderValueLow(LPSTR lpszHeaderLow, size_t dwHeaderSize, LPSTR lpszValueName, size_t dwValueNameSize, LPSTR *plpszValue, size_t *pdwValueSize)
{
LPSTR lpszValue = (LPSTR)MemoryFind(0, lpszHeaderLow, dwHeaderSize, lpszValueName, dwValueNameSize);
if (lpszValue) {
lpszValue += dwValueNameSize;
LPSTR lpszValueEnd = (LPSTR)MemoryFind((lpszValue-lpszHeaderLow), lpszHeaderLow, dwHeaderSize, CRLF, (sizeof(CRLF)-1));
if (lpszValueEnd == nullptr) lpszValueEnd = (LPSTR)MemoryFind((lpszValue-lpszHeaderLow), lpszHeaderLow, dwHeaderSize, LF, (sizeof(LF)-1));
if (lpszValueEnd == nullptr) lpszValueEnd = (LPSTR)(lpszHeaderLow+dwHeaderSize);
lpszValue = (LPSTR)MemoryFind((lpszValue-lpszHeaderLow), lpszHeaderLow, (lpszValueEnd-lpszHeaderLow), ":", 1);
if (lpszValue) {
lpszValue++;
SkeepSPWSP(lpszValue, lpszValueEnd - lpszValue, plpszValue, pdwValueSize);
return NO_ERROR;
}
}
return ERROR_NOT_FOUND;
}
static DWORD MraOfflineMessageGetMIMEHeadAndBody(LPCSTR lpszMessage, size_t dwMessageSize, LPSTR *plpszHeader, size_t *pdwHeaderSize, LPSTR *plpszBody, size_t *pdwBodySize)
{
if (!lpszMessage || !dwMessageSize)
return ERROR_NOT_FOUND;
// затычка: майл не придерживается RFC и вместо CRLFCRLF ставит LFLF в MIME частях, иногда ставит
LPSTR lpszBody = (LPSTR)MemoryFind(0, lpszMessage, dwMessageSize, CRLFCRLF, (sizeof(CRLFCRLF)-1));
if (lpszBody)
lpszBody += (sizeof(CRLFCRLF)-1);
else {
lpszBody = (LPSTR)MemoryFind(0, lpszMessage, dwMessageSize, LFLF, (sizeof(LFLF)-1));
if (lpszBody) lpszBody += (sizeof(LFLF)-1);
}
if (!lpszBody)
return ERROR_NOT_FOUND;
// нашли начало контента миме части
size_t dwBodySize = (dwMessageSize-(lpszBody-lpszMessage));
if (plpszHeader) (*plpszHeader) = (LPSTR)lpszMessage;
if (pdwHeaderSize) (*pdwHeaderSize) = ((lpszBody-(sizeof(LFLF)-1))-lpszMessage);
if (plpszBody) (*plpszBody) = lpszBody;
if (pdwBodySize) (*pdwBodySize) = dwBodySize;
return NO_ERROR;
}
static DWORD MraOfflineMessageGetHeaderValue(LPSTR lpszHeader, LPSTR lpszHeaderLow, size_t dwHeaderSize, LPSTR lpszValueName, size_t dwValueNameSize, CMStringA &plpszValue)
{
LPSTR lpszValue = (LPSTR)MemoryFind(0, lpszHeaderLow, dwHeaderSize, lpszValueName, dwValueNameSize);
if (lpszValue) {
lpszValue += dwValueNameSize;
LPSTR lpszValueEnd = (LPSTR)MemoryFind((lpszValue-lpszHeaderLow), lpszHeaderLow, dwHeaderSize, CRLF, (sizeof(CRLF)-1));
if (lpszValueEnd == nullptr)
lpszValueEnd = (LPSTR)MemoryFind((lpszValue-lpszHeaderLow), lpszHeaderLow, dwHeaderSize, LF, (sizeof(LF)-1));
if (lpszValueEnd == nullptr)
lpszValueEnd = (LPSTR)(lpszHeaderLow+dwHeaderSize);
lpszValue = (LPSTR)MemoryFind((lpszValue-lpszHeaderLow), lpszHeaderLow, (lpszValueEnd-lpszHeaderLow), ":", 1);
if (lpszValue) {
lpszValue++;
size_t dwValueSize = lpszValueEnd - lpszValue;
lpszValue = lpszHeader + (lpszValue-lpszHeaderLow);
SkeepSPWSP(lpszValue, dwValueSize, &lpszValue, &dwValueSize);
plpszValue = CMStringA(lpszValue, (int)dwValueSize);
return NO_ERROR;
}
}
return ERROR_NOT_FOUND;
}
static DWORD MraOfflineMessageGetNextMIMEPart(LPSTR lpszBody, size_t dwBodySize, LPSTR lpszBoundary, size_t dwBoundarySize, LPSTR &plpszCurMIMEPos, LPSTR *plpszMIMEPart, size_t *pdwMIMEPartSize)
{
if (!lpszBody || !dwBodySize)
return ERROR_INVALID_HANDLE;
LPSTR lpszCurMIMEPos = plpszCurMIMEPos;
LPSTR lpszMIMEPart = (LPSTR)MemoryFind((lpszCurMIMEPos-lpszBody), lpszBody, dwBodySize, lpszBoundary, dwBoundarySize);
if (lpszMIMEPart) {// первая миме часть
lpszMIMEPart += dwBoundarySize;
// затычка: майл не придерживается RFC и вместо CRLF ставит LF в MIME частях, иногда ставит
if ((*((WORD*)lpszMIMEPart)) == (*((WORD*)CRLF)))
lpszMIMEPart += (sizeof(CRLF)-1);
else if ((*((BYTE*)lpszMIMEPart)) == (*((BYTE*)LF)))
lpszMIMEPart += (sizeof(LF)-1);
else if ((*((WORD*)lpszMIMEPart)) == '--')
lpszMIMEPart = nullptr;
else
_CrtDbgBreak();
if (lpszMIMEPart == nullptr)
return ERROR_NO_MORE_ITEMS;
LPSTR lpszTemp = (LPSTR)MemoryFind((lpszMIMEPart-lpszBody), lpszBody, dwBodySize, lpszBoundary, dwBoundarySize);
if (lpszTemp) {// нашли конец миме части с текстом
size_t dwMIMEPartSize = (lpszTemp-lpszMIMEPart);// 4 = CRLF"--"Boundary / 3 = LF"--"Boundary
// затычка: майл не придерживается RFC и вместо CRLF ставит LF в MIME частях, иногда ставит
if ((*((WORD*)(lpszTemp-4))) == (*((WORD*)CRLF)))
dwMIMEPartSize -= 4;
else if ((*((BYTE*)(lpszTemp-3))) == (*((BYTE*)LF)))
dwMIMEPartSize -= 3;
else
_CrtDbgBreak();
if (plpszMIMEPart) (*plpszMIMEPart) = lpszMIMEPart;
if (pdwMIMEPartSize) (*pdwMIMEPartSize) = dwMIMEPartSize;
plpszCurMIMEPos = lpszTemp;
return NO_ERROR;
}
}
return ERROR_NOT_FOUND;
}
// Сообщение
static DWORD PlainText2message(const CMStringA &szContentType, const CMStringA &szBody, CMStringA &plpsText, DWORD *pdwFlags)
{
// Content-Type: text/plain; charset = CP-1251
if ( strstr(szContentType, "utf-16le")) {
// charset = UTF-16LE// предполагаем что оно в base64
unsigned dwTextSize;
ptrA lpszText((LPSTR)mir_base64_decode(szBody, &dwTextSize));
if (lpszText) {
plpsText = CMStringA(lpszText, dwTextSize);
if (pdwFlags) {
(*pdwFlags) |= MESSAGE_FLAG_v1p16; // set unicode flag if not exist
(*pdwFlags) &= ~MESSAGE_FLAG_CP1251; // reset ansi flag if exist
}
return NO_ERROR;
}
}
else if ( strstr(szContentType, "cp-1251")) { // charset = CP-1251
plpsText = szBody;
if (pdwFlags) {
(*pdwFlags) &= ~MESSAGE_FLAG_v1p16; // reset unicode flag if exist
(*pdwFlags) |= MESSAGE_FLAG_CP1251; // set ansi flag
}
return NO_ERROR;
}
else _CrtDbgBreak();
return ERROR_INVALID_HANDLE;
}
DWORD MraOfflineMessageGet(const CMStringA &plpsMsg, DWORD &pdwTime, DWORD &pdwFlags, CMStringA &plpsEMail, CMStringA &plpsText, CMStringA &plpsRTFText, CMStringA &plpsMultiChatData)
{
if (plpsMsg.IsEmpty())
return ERROR_INVALID_HANDLE;
LPSTR lpszHeader, lpszBody, lpszContentTypeLow;
size_t dwHeaderSize, dwBodySize, dwContentTypeSize;
CMStringA szTemp;
if (MraOfflineMessageGetMIMEHeadAndBody(plpsMsg.GetString(), plpsMsg.GetLength(), &lpszHeader, &dwHeaderSize, &lpszBody, &dwBodySize) != NO_ERROR)
return ERROR_INVALID_HANDLE;
ptrA lpszHeaderLow((LPSTR)mir_calloc(dwHeaderSize));
if (lpszHeaderLow == NULL)
return ERROR_OUTOFMEMORY;
BuffToLowerCase(lpszHeaderLow, lpszHeader, dwHeaderSize);
if (MraOfflineMessageGetHeaderValue(lpszHeader, lpszHeaderLow, dwHeaderSize, "date", 4, szTemp) == NO_ERROR) {
INTERNET_TIME itTime;
InternetTimeGetTime(szTemp, itTime);
pdwTime = MraOfflineMessageConvertTime(&itTime);
}
else pdwTime = 0;
if (MraOfflineMessageGetHeaderValue(lpszHeader, lpszHeaderLow, dwHeaderSize, "x-mrim-flags", 12, szTemp) == NO_ERROR)
pdwFlags = StrHexToUNum32(szTemp, szTemp.GetLength());
else
pdwFlags = 0;
DWORD dwMultichatType;
if (MraOfflineMessageGetHeaderValue(lpszHeader, lpszHeaderLow, dwHeaderSize, "x-mrim-multichat-type", 21, szTemp) == NO_ERROR)
dwMultichatType = StrHexToUNum32(szTemp, szTemp.GetLength());
else
dwMultichatType = 0;
if (MraOfflineMessageGetHeaderValue(lpszHeader, lpszHeaderLow, dwHeaderSize, "from", 4, plpsEMail) != NO_ERROR)
plpsEMail.Empty();
plpsText.Empty();
plpsRTFText.Empty();
plpsMultiChatData.Empty();
if (MraOfflineMessageGetHeaderValueLow(lpszHeaderLow, dwHeaderSize, "content-type", 12, &lpszContentTypeLow, &dwContentTypeSize) != NO_ERROR)
return ERROR_NOT_FOUND;
if (MemoryFind(0, lpszContentTypeLow, dwContentTypeSize, "multipart/alternative", 21)) {
// Content-Type: multipart/alternative; boundary = 1217508709J3777283291217508709T31197726
LPSTR lpszBoundary = (LPSTR)MemoryFind(0, lpszContentTypeLow, dwContentTypeSize, "boundary=", 9);
if (lpszBoundary) {
size_t dwBoundarySize = ((dwContentTypeSize - (lpszBoundary - lpszContentTypeLow)) - 9);
lpszBoundary = lpszHeader + (lpszBoundary + 9 - (LPSTR)lpszHeaderLow);
int i = 0;
size_t dwMIMEPartSize, dwMIMEHeaderSize, dwMIMEBodySize, dwMIMEContentTypeSize;
LPSTR lpszCurMIMEPos = lpszBody, lpszMIMEPart, lpszMIMEHeader, lpszMIMEBody;
while (MraOfflineMessageGetNextMIMEPart(lpszBody, dwBodySize, lpszBoundary, dwBoundarySize, lpszCurMIMEPos, &lpszMIMEPart, &dwMIMEPartSize) == NO_ERROR) {
if (MraOfflineMessageGetMIMEHeadAndBody(lpszMIMEPart, dwMIMEPartSize, &lpszMIMEHeader, &dwMIMEHeaderSize, &lpszMIMEBody, &dwMIMEBodySize) == NO_ERROR) {
ptrA lpszMIMEHeaderLow((LPSTR)mir_calloc(dwMIMEHeaderSize));
if (lpszMIMEHeaderLow == NULL)
return ERROR_OUTOFMEMORY;
BuffToLowerCase(lpszMIMEHeaderLow, lpszMIMEHeader, dwMIMEHeaderSize);
LPSTR lpszMIMEContentType;
if (MraOfflineMessageGetHeaderValueLow(lpszMIMEHeaderLow, dwMIMEHeaderSize, "content-type", 12, &lpszMIMEContentType, &dwMIMEContentTypeSize) == NO_ERROR) {
if (MemoryFind(0, lpszMIMEContentType, dwMIMEContentTypeSize, "text/plain", 10)) {
// this is simple text part: text/plain
return PlainText2message(CMStringA(lpszMIMEContentType, (int)dwMIMEContentTypeSize), CMStringA(lpszMIMEBody, (int)dwMIMEBodySize), plpsText, &pdwFlags);
}
if (MemoryFind(0, lpszMIMEContentType, dwMIMEContentTypeSize, "application/x-mrim-rtf", 22)) {
plpsRTFText = CMStringA(lpszMIMEBody, (int)dwMIMEBodySize);
pdwFlags |= MESSAGE_FLAG_RTF; // set RTF flag if not exist
return NO_ERROR;
}
if (MemoryFind(0, lpszMIMEContentType, dwMIMEContentTypeSize, "application/x-mrim+xml", 22)) {
plpsMultiChatData = CMStringA(lpszMIMEBody, (int)dwMIMEBodySize);
pdwFlags |= MESSAGE_FLAG_MULTICHAT; // set MESSAGE_FLAG_MULTICHAT flag if not exist
return NO_ERROR;
}
_CrtDbgBreak();
}
}
i++;
}
_ASSERTE((i > 3 || i == 0));
}
return ERROR_NOT_FOUND;
}
if (MemoryFind(0, lpszContentTypeLow, dwContentTypeSize, "text/plain", 10))
return PlainText2message(CMStringA(lpszContentTypeLow, (int)dwContentTypeSize), CMStringA(lpszBody, (int)dwBodySize), plpsText, &pdwFlags);
if (MemoryFind(0, lpszContentTypeLow, dwContentTypeSize, "application/x-mrim-auth-req", 27)) { // Content-Type: application/x-mrim-auth-req
plpsText = CMStringA(lpszBody, (int)dwBodySize);
return NO_ERROR;
}
return ERROR_INVALID_HANDLE;
}
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