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refactor

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This commit is contained in:
Akash Mozumdar 2018-07-19 01:43:31 -04:00
parent 05a14d201e
commit e4f5f3cfd5
2 changed files with 118 additions and 147 deletions
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85
vnr/texthook/hookman.cc
View File

@ -15,7 +15,7 @@
#include "winmutex/winmutex.h" #include "winmutex/winmutex.h"
#include <atlbase.h> #include <atlbase.h>
#define HM_LOCK CriticalSectionLocker locker(hmcs) // Synchronized scope for accessing private data #define HM_LOCK CriticalSectionLocker locker(hmCs) // Synchronized scope for accessing private data
HookManager::HookManager() : HookManager::HookManager() :
current(nullptr), current(nullptr),
@ -28,67 +28,58 @@ HookManager::HookManager() :
textThreadsByParams(), textThreadsByParams(),
processRecordsByIds() processRecordsByIds()
{ {
InitializeCriticalSection(&hmCs);
TextThread* consoleTextThread = textThreadsByParams[{ 0, -1UL, -1UL, -1UL }] = new TextThread({ 0, -1UL, -1UL, -1UL }, nextThreadNumber++, splitDelay); TextThread* consoleTextThread = textThreadsByParams[{ 0, -1UL, -1UL, -1UL }] = new TextThread({ 0, -1UL, -1UL, -1UL }, nextThreadNumber++, splitDelay);
consoleTextThread->Status() |= USING_UNICODE; consoleTextThread->Status() |= USING_UNICODE;
SetCurrent(consoleTextThread); SetCurrent(consoleTextThread);
InitializeCriticalSection(&hmcs);
} }
HookManager::~HookManager() HookManager::~HookManager()
{ {
DeleteCriticalSection(&hmcs); HM_LOCK;
DeleteCriticalSection(&hmCs);
} }
TextThread *HookManager::FindSingle(DWORD number) TextThread *HookManager::FindSingle(DWORD number)
{ {
HM_LOCK;
for (auto i : textThreadsByParams) for (auto i : textThreadsByParams)
{
if (i.second->Number() == number) if (i.second->Number() == number)
{
return i.second; return i.second;
}
}
return nullptr; return nullptr;
} }
void HookManager::SetCurrent(TextThread *it) void HookManager::SetCurrent(TextThread *it)
{ {
if (current) HM_LOCK;
current->Status() &= ~CURRENT_SELECT; current->Status() &= ~CURRENT_SELECT;
current = it; current = it;
if (it)
it->Status() |= CURRENT_SELECT; it->Status() |= CURRENT_SELECT;
} }
void HookManager::SelectCurrent(DWORD num) void HookManager::SelectCurrent(DWORD num)
{ {
if (TextThread *st = FindSingle(num)) { HM_LOCK;
if (TextThread *st = FindSingle(num))
{
SetCurrent(st); SetCurrent(st);
if (reset) if (reset) reset(st);
reset(st);
//st->ResetEditText();
} }
} }
void HookManager::RemoveSingleHook(DWORD pid, DWORD addr) void HookManager::RemoveSingleHook(DWORD pid, DWORD addr)
{ {
HM_LOCK; HM_LOCK;
std::vector<ThreadParameter> removedThreads; std::vector<ThreadParameter> removedThreads;
for (auto i : textThreadsByParams) for (auto i : textThreadsByParams)
{
if (i.first.pid == pid && i.first.hook == addr) if (i.first.pid == pid && i.first.hook == addr)
{ {
if (remove) if (remove) remove(i.second);
{
remove(i.second);
}
delete i.second; delete i.second;
removedThreads.push_back(i.first); removedThreads.push_back(i.first);
} }
} for (auto i : removedThreads) textThreadsByParams.erase(i);
for (auto i : removedThreads)
{
textThreadsByParams.erase(i);
}
SelectCurrent(0); SelectCurrent(0);
} }
@ -97,44 +88,31 @@ void HookManager::RemoveProcessContext(DWORD pid)
HM_LOCK; HM_LOCK;
std::vector<ThreadParameter> removedThreads; std::vector<ThreadParameter> removedThreads;
for (auto i : textThreadsByParams) for (auto i : textThreadsByParams)
if (i.first.pid == pid)
{ {
if (i.first.hook == pid) if (remove) remove(i.second);
{
if (remove)
{
remove(i.second);
}
delete i.second; delete i.second;
removedThreads.push_back(i.first); removedThreads.push_back(i.first);
} }
} for (auto i : removedThreads) textThreadsByParams.erase(i);
for (auto i : removedThreads)
{
textThreadsByParams.erase(i);
}
SelectCurrent(0); SelectCurrent(0);
} }
void HookManager::RegisterProcess(DWORD pid, HANDLE hostPipe) void HookManager::RegisterProcess(DWORD pid, HANDLE hostPipe)
{ {
HM_LOCK; HM_LOCK;
ProcessRecord* record = processRecordsByIds[pid] = new ProcessRecord; ProcessRecord* record = processRecordsByIds[pid] = new ProcessRecord;
record->hostPipe = hostPipe; record->hostPipe = hostPipe;
record->hookman_section = OpenFileMappingW(FILE_MAP_READ, FALSE, (ITH_SECTION_ + std::to_wstring(pid)).c_str()); record->hookman_section = OpenFileMappingW(FILE_MAP_READ, FALSE, (ITH_SECTION_ + std::to_wstring(pid)).c_str());
record->hookman_map = MapViewOfFile(record->hookman_section, FILE_MAP_READ, 0, 0, HOOK_SECTION_SIZE / 2); // jichi 1/16/2015: Changed to half to hook section size record->hookman_map = MapViewOfFile(record->hookman_section, FILE_MAP_READ, 0, 0, HOOK_SECTION_SIZE / 2); // jichi 1/16/2015: Changed to half to hook section size
record->process_handle = OpenProcess(PROCESS_ALL_ACCESS, FALSE, pid); record->process_handle = OpenProcess(PROCESS_ALL_ACCESS, FALSE, pid);
record->hookman_mutex = OpenMutexW(MUTEX_ALL_ACCESS, FALSE, (ITH_HOOKMAN_MUTEX_ + std::to_wstring(pid)).c_str()); record->hookman_mutex = OpenMutexW(MUTEX_ALL_ACCESS, FALSE, (ITH_HOOKMAN_MUTEX_ + std::to_wstring(pid)).c_str());
if (attach) attach(pid);
if (attach)
attach(pid);
} }
void HookManager::UnRegisterProcess(DWORD pid) void HookManager::UnRegisterProcess(DWORD pid)
{ {
HM_LOCK; HM_LOCK;
ProcessRecord pr = *processRecordsByIds[pid]; ProcessRecord pr = *processRecordsByIds[pid];
CloseHandle(pr.hookman_mutex); CloseHandle(pr.hookman_mutex);
UnmapViewOfFile(pr.hookman_map); UnmapViewOfFile(pr.hookman_map);
@ -142,9 +120,7 @@ void HookManager::UnRegisterProcess(DWORD pid)
CloseHandle(pr.hookman_section); CloseHandle(pr.hookman_section);
processRecordsByIds.erase(pid); processRecordsByIds.erase(pid);
RemoveProcessContext(pid); RemoveProcessContext(pid);
if (detach) detach(pid);
if (detach)
detach(pid);
} }
void HookManager::DispatchText(DWORD pid, DWORD hook, DWORD retn, DWORD spl, const BYTE *text, int len) void HookManager::DispatchText(DWORD pid, DWORD hook, DWORD retn, DWORD spl, const BYTE *text, int len)
@ -155,19 +131,17 @@ void HookManager::DispatchText(DWORD pid, DWORD hook, DWORD retn, DWORD spl, con
HM_LOCK; HM_LOCK;
ThreadParameter tp = { pid, hook, retn, spl }; ThreadParameter tp = { pid, hook, retn, spl };
TextThread *it; TextThread *it;
if (!(it = textThreadsByParams[tp])) if ((it = textThreadsByParams[tp]) == nullptr)
{ {
it = textThreadsByParams[tp] = new TextThread(tp, nextThreadNumber++, splitDelay); it = textThreadsByParams[tp] = new TextThread(tp, nextThreadNumber++, splitDelay);
if (create) if (create) create(it);
{
create(it);
}
} }
it->AddText(text, len); it->AddText(text, len);
} }
void HookManager::AddConsoleOutput(LPCWSTR text) void HookManager::AddConsoleOutput(LPCWSTR text)
{ {
HM_LOCK;
if (text) if (text)
{ {
int len = wcslen(text) * 2; int len = wcslen(text) * 2;
@ -179,11 +153,8 @@ void HookManager::AddConsoleOutput(LPCWSTR text)
void HookManager::ClearCurrent() void HookManager::ClearCurrent()
{ {
HM_LOCK; HM_LOCK;
if (current) {
current->Reset(); current->Reset();
if (reset) if (reset) reset(current);
reset(current);
}
} }
ProcessRecord *HookManager::GetProcessRecord(DWORD pid) ProcessRecord *HookManager::GetProcessRecord(DWORD pid)
@ -200,24 +171,25 @@ HANDLE HookManager::GetHostPipe(DWORD pid)
HookParam HookManager::GetHookParam(DWORD pid, DWORD addr) HookParam HookManager::GetHookParam(DWORD pid, DWORD addr)
{ {
HM_LOCK;
HookParam ret = {}; HookParam ret = {};
ProcessRecord* pr = GetProcessRecord(pid); ProcessRecord* pr = GetProcessRecord(pid);
if (pr == nullptr) return ret; if (pr == nullptr) return ret;
WaitForSingleObject(pr->hookman_mutex, 0); MutexLocker locker(pr->hookman_mutex);
const Hook* hooks = (const Hook*)pr->hookman_map; const Hook* hooks = (const Hook*)pr->hookman_map;
for (int i = 0; i < MAX_HOOK; ++i) for (int i = 0; i < MAX_HOOK; ++i)
if (hooks[i].Address() == addr) if (hooks[i].Address() == addr)
ret = hooks[i].hp; ret = hooks[i].hp;
ReleaseMutex(pr->hookman_mutex);
return ret; return ret;
} }
std::wstring HookManager::GetHookName(DWORD pid, DWORD addr) std::wstring HookManager::GetHookName(DWORD pid, DWORD addr)
{ {
HM_LOCK;
std::string buffer; std::string buffer;
ProcessRecord* pr = GetProcessRecord(pid); ProcessRecord* pr = GetProcessRecord(pid);
if (pr == nullptr) return L""; if (pr == nullptr) return L"";
WaitForSingleObject(pr->hookman_mutex, 0); MutexLocker locker(pr->hookman_mutex);
USES_CONVERSION; USES_CONVERSION;
const Hook* hooks = (const Hook*)pr->hookman_map; const Hook* hooks = (const Hook*)pr->hookman_map;
for (int i = 0; i < MAX_HOOK; ++i) for (int i = 0; i < MAX_HOOK; ++i)
@ -228,7 +200,6 @@ std::wstring HookManager::GetHookName(DWORD pid, DWORD addr)
ReadProcessMemory(pr->process_handle, hooks[i].Name(), &buffer[0], hooks[i].NameLength(), nullptr); ReadProcessMemory(pr->process_handle, hooks[i].Name(), &buffer[0], hooks[i].NameLength(), nullptr);
} }
} }
ReleaseMutex(pr->hookman_mutex);
return std::wstring(A2W(buffer.c_str())); return std::wstring(A2W(buffer.c_str()));
} }

2
vnr/texthook/hookman.h
View File

@ -63,7 +63,7 @@ private:
std::unordered_map<ThreadParameter, TextThread*, ThreadParameterHasher> textThreadsByParams; std::unordered_map<ThreadParameter, TextThread*, ThreadParameterHasher> textThreadsByParams;
std::unordered_map<DWORD, ProcessRecord*> processRecordsByIds; std::unordered_map<DWORD, ProcessRecord*> processRecordsByIds;
CRITICAL_SECTION hmcs; CRITICAL_SECTION hmCs;
TextThread *current; TextThread *current;