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#include "headers.h"
#include <time.h>
#include <math.h>
int __cdecl CContactCache::OnDbEventAdded(WPARAM wParam, LPARAM lParam)
{
HANDLE hContact = (HANDLE)wParam;
HANDLE hEvent = (HANDLE)lParam;
DBEVENTINFO dbei = {0};
dbei.cbSize = sizeof(dbei);
CallService(MS_DB_EVENT_GET, (WPARAM)hEvent, (LPARAM)&dbei);
if (dbei.eventType != EVENTTYPE_MESSAGE) return 0;
float weight = GetEventWeight(time(NULL) - dbei.timestamp);
float q = GetTimeWeight(time(NULL) - m_lastUpdate);
m_lastUpdate = time(NULL);
if (!weight) return 0;
Lock();
bool found = false;
for (int i = 0; i < m_cache.getCount(); ++i)
{
m_cache[i].rate *= q;
if (m_cache[i].hContact == hContact)
{
found = true;
m_cache[i].rate += weight;
}
}
if (!found)
{
TContactInfo *info = new TContactInfo;
info->hContact = hContact;
info->rate = weight;
m_cache.insert(info);
} else
{
qsort(m_cache.getArray(), m_cache.getCount(), sizeof(TContactInfo *), TContactInfo::cmp2);
}
Unlock();
return 0;
}
float CContactCache::GetEventWeight(unsigned long age)
{
const float ceil = 1000.f;
const float floor = 0.0001f;
const int depth = 60 * 60 * 24 * 30;
if (age > depth) return 0;
return exp(log(ceil) - age * (log(ceil) - log(floor)) / depth);
}
float CContactCache::GetTimeWeight(unsigned long age)
{
const float ceil = 1000.f;
const float floor = 0.0001f;
const int depth = 60 * 60 * 24 * 30;
if (age > depth) return 0;
return exp(age * (log(ceil) - log(floor)) / depth);
}
CContactCache::CContactCache(): m_cache(50, TContactInfo::cmp)
{
InitializeCriticalSection(&m_cs);
int (__cdecl CContactCache::*pfn)(WPARAM, LPARAM);
pfn = &CContactCache::OnDbEventAdded;
m_hOnDbEventAdded = HookEventObj(ME_DB_EVENT_ADDED, *(MIRANDAHOOKOBJ *)&pfn, this);
Rebuild();
}
CContactCache::~CContactCache()
{
UnhookEvent(m_hOnDbEventAdded);
DeleteCriticalSection(&m_cs);
}
void CContactCache::Rebuild()
{
unsigned long timestamp = time(NULL);
m_lastUpdate = time(NULL);
HANDLE hContact = db_find_first();
while (hContact)
{
TContactInfo *info = new TContactInfo;
info->hContact = hContact;
info->rate = 0;
HANDLE hEvent = (HANDLE)CallService(MS_DB_EVENT_FINDLAST, (WPARAM)hContact, 0);
while (hEvent)
{
DBEVENTINFO dbei = {0};
dbei.cbSize = sizeof(dbei);
if (!CallService(MS_DB_EVENT_GET, (WPARAM)hEvent, (LPARAM)&dbei))
{
if (float weight = GetEventWeight(timestamp - dbei.timestamp))
{
if (dbei.eventType == EVENTTYPE_MESSAGE)
info->rate += weight;
} else
{
break;
}
}
hEvent = (HANDLE)CallService(MS_DB_EVENT_FINDPREV, (WPARAM)hEvent, 0);
}
m_cache.insert(info);
hContact = db_find_next(hContact);
}
}
HANDLE CContactCache::get(int rate)
{
if (rate >= 0 && rate < m_cache.getCount())
return m_cache[rate].hContact;
return NULL;
}
float CContactCache::getWeight(int rate)
{
if (rate >= 0 && rate < m_cache.getCount())
return m_cache[rate].rate;
return -1;
}
static bool AppendInfo(TCHAR *buf, int size, HANDLE hContact, int info)
{
CONTACTINFO ci = {0};
ci.cbSize = sizeof(ci);
ci.hContact = hContact;
ci.dwFlag = info;
ci.dwFlag |= CNF_UNICODE;
bool ret = false;
if (!CallService(MS_CONTACT_GETCONTACTINFO, 0, (LPARAM)&ci) && (ci.type == CNFT_ASCIIZ) && ci.pszVal)
{
if (*ci.pszVal && (lstrlen(ci.pszVal) < size-2))
{
lstrcpy(buf, ci.pszVal);
ret = true;
}
mir_free(ci.pszVal);
}
return ret;
}
void CContactCache::TContactInfo::LoadInfo()
{
if (infoLoaded) return;
TCHAR *p = info;
p[0] = p[1] = 0;
static const int items[] = {
CNF_FIRSTNAME, CNF_LASTNAME, CNF_NICK , CNF_CUSTOMNICK, CNF_EMAIL, CNF_CITY, CNF_STATE,
CNF_COUNTRY, CNF_PHONE, CNF_HOMEPAGE, CNF_ABOUT, CNF_UNIQUEID, CNF_MYNOTES, CNF_STREET,
CNF_CONAME, CNF_CODEPT, CNF_COCITY, CNF_COSTATE, CNF_COSTREET, CNF_COCOUNTRY
};
for (int i = 0; i < SIZEOF(items); ++i)
{
if (AppendInfo(p, SIZEOF(info) - (p - info), hContact, items[i]))
p += lstrlen(p) + 1;
}
*p = 0;
infoLoaded = true;
}
TCHAR *nb_stristr(TCHAR *str, TCHAR *substr)
{
if (!substr || !*substr) return str;
if (!str || !*str) return NULL;
TCHAR *str_up = NEWTSTR_ALLOCA(str);
TCHAR *substr_up = NEWTSTR_ALLOCA(substr);
CharUpperBuff(str_up, lstrlen(str_up));
CharUpperBuff(substr_up, lstrlen(substr_up));
TCHAR* p = _tcsstr(str_up, substr_up);
return p ? (str + (p - str_up)) : NULL;
}
bool CContactCache::filter(int rate, TCHAR *str)
{
if (!str || !*str)
return true;
m_cache[rate].LoadInfo();
HKL kbdLayoutActive = GetKeyboardLayout(GetCurrentThreadId());
HKL kbdLayouts[10];
int nKbdLayouts = GetKeyboardLayoutList(SIZEOF(kbdLayouts), kbdLayouts);
TCHAR buf[256];
BYTE keyState[256] = {0};
for (int iLayout = 0; iLayout < nKbdLayouts; ++iLayout)
{
if (kbdLayoutActive == kbdLayouts[iLayout])
{
lstrcpy(buf, str);
} else
{
int i;
for (i = 0; str[i]; ++i)
{
UINT vk = VkKeyScanEx(str[i], kbdLayoutActive);
UINT scan = MapVirtualKeyEx(vk, 0, kbdLayoutActive);
ToUnicodeEx(vk, scan, keyState, buf+i, SIZEOF(buf)-i, 0, kbdLayouts[iLayout]);
}
buf[i] = 0;
}
for (TCHAR *p = m_cache[rate].info; p && *p; p = p + lstrlen(p) + 1)
if (nb_stristr(p, buf))
return true;
}
return false;
}
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