code_app/modules/base/HGUtility.cpp

#include "HGUtility.h"
#include "HGInc.h"
#include "HGInfo.h"
#include "HGIni.h"
#if defined(HG_CMP_MSC)
#include <shlobj.h>
#include <atlstr.h>
#else
#include "uuid/uuid.h"
#endif
#include <string>

HGResult HGAPI HGBase_GetTmpPath(HGChar* path, HGUInt maxLen)
{
	if (NULL == path || 0 == maxLen)
	{
		return HGBASE_ERR_INVALIDARG;
	}

#if !defined(HG_CMP_MSC)
	char tmpPath[512] = {0};
	strcpy(tmpPath, "/tmp/");
#else
	CHAR tmpPath[MAX_PATH] = { 0 };
	DWORD len = GetTempPathA(MAX_PATH, tmpPath);
	if (0 == len)
		return HGBASE_ERR_FAIL;
	if (tmpPath[strlen(tmpPath) - 1] != '\\')
		strcat(tmpPath, "\\");
#endif

	if (maxLen < strlen(tmpPath) + 1)
		return HGBASE_ERR_FAIL;
	strcpy(path, tmpPath);
	return HGBASE_ERR_OK;
}

HGResult HGAPI HGBase_GetCurrentDir(HGChar* dir, HGUInt maxLen)
{
	if (NULL == dir || 0 == maxLen)
	{
		return HGBASE_ERR_INVALIDARG;
	}

#if !defined(HG_CMP_MSC)
	char buffer[512] = { 0 };
	char* p = getcwd(buffer, 512);
	if (NULL == p)
		return HGBASE_ERR_FAIL;
	if (buffer[strlen(buffer) - 1] != '/')
		strcat(buffer, "/");
#else
	CHAR buffer[MAX_PATH] = { 0 };
	DWORD len = GetCurrentDirectoryA(MAX_PATH, buffer);
	if (0 == len)
		return HGBASE_ERR_FAIL;
	if (buffer[strlen(buffer) - 1] != '\\')
		strcat(buffer, "\\");
#endif

	if (maxLen < strlen(buffer) + 1)
		return HGBASE_ERR_FAIL;
	strcpy(dir, buffer);
	return HGBASE_ERR_OK;
}

HGResult HGAPI HGBase_SetCurrentDir(const HGChar* dir)
{
	if (NULL == dir)
	{
		return HGBASE_ERR_INVALIDARG;
	}

#if !defined(HG_CMP_MSC)
	if (0 != chdir(dir))
		return HGBASE_ERR_FAIL;
#else
	if (!SetCurrentDirectoryA(dir))
		return HGBASE_ERR_FAIL;
#endif
	return HGBASE_ERR_OK;
}

HGResult HGAPI HGBase_CreateDir(const HGChar* dir)
{
	if (NULL == dir)
	{
		return HGBASE_ERR_INVALIDARG;
	}

#if !defined(HG_CMP_MSC)
	bool ret = true;

	char muldir[512] = { 0 };
	strcpy(muldir, dir);
	for (size_t i = 0; i < strlen(muldir); ++i)
	{
		if ('/' == muldir[i])
		{
			muldir[i] = '\0';
			if ('\0' != *muldir && 0 != access(muldir, 0))
			{
				if (0 != mkdir(muldir, 0777))
				{
					HGBase_WriteInfo(HGBASE_INFOTYPE_ERROR, "HGBase_CreateDir: mkdir fail, %s errno=%d", dir, errno);
					ret = false;
					break;
				}
			}
			muldir[i] = '/';
		}
	}

	if (ret)
	{
		if ('\0' != *muldir && 0 != access(muldir, 0))
		{
			if (0 != mkdir(muldir, 0777))
			{
				HGBase_WriteInfo(HGBASE_INFOTYPE_ERROR, "HGBase_CreateDir: mkdir fail, %s errno=%d", dir, errno);
				ret = false;
			}
		}
	}

	if (!ret)
		return HGBASE_ERR_ACCESSDENIED;
#else
	int ret = SHCreateDirectoryExA(NULL, dir, NULL);
	if (ERROR_SUCCESS != ret && ERROR_ALREADY_EXISTS != ret)
	{
		HGBase_WriteInfo(HGBASE_INFOTYPE_ERROR, "HGBase_CreateDir: SHCreateDirectoryExA fail, %s GetLastError=%u", dir, GetLastError());
		return HGBASE_ERR_ACCESSDENIED;
	}
#endif
	return HGBASE_ERR_OK;
}

HGResult HGAPI HGBase_DeleteDir(const HGChar* dir)
{
	if (NULL == dir)
	{
		return HGBASE_ERR_INVALIDARG;
	}

#if !defined(HG_CMP_MSC)
	if (0 != rmdir(dir))
		return HGBASE_ERR_FAIL;
#else
	if (!RemoveDirectoryA(dir))
		return HGBASE_ERR_FAIL;
#endif
	return HGBASE_ERR_OK;
}

HGResult HGAPI HGBase_DeleteFile(const HGChar* fileName)
{
	if (NULL == fileName)
	{
		return HGBASE_ERR_INVALIDARG;
	}

#if !defined(HG_CMP_MSC)
	if (0 != unlink(fileName))
		return HGBASE_ERR_FAIL;
#else
	if (!DeleteFileA(fileName))
		return HGBASE_ERR_FAIL;
#endif
	return HGBASE_ERR_OK;
}

HGResult HGAPI HGBase_GetModuleName(HGPointer addr, HGChar* name, HGUInt maxLen)
{
	if (NULL == name || 0 == maxLen)
	{
		return HGBASE_ERR_INVALIDARG;
	}

#if !defined(HG_CMP_MSC)
    if (NULL == addr)
    {
        char dir[PATH_MAX] = {0};
        if (0 == readlink("/proc/self/exe", dir, PATH_MAX))
            return HGBASE_ERR_FAIL;
        if (maxLen < strlen(dir) + 1)
            return HGBASE_ERR_FAIL;
        strcpy(name, dir);
    }
    else
    {
        Dl_info dlinfo;
        if (0 == dladdr(addr, &dlinfo))
            return HGBASE_ERR_FAIL;
        if (maxLen < strlen(dlinfo.dli_fname) + 1)
            return HGBASE_ERR_FAIL;
        strcpy(name, dlinfo.dli_fname);
    }
#else
	HMODULE hModule = NULL;
	GetModuleHandleExA(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS
		| GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT, (LPCSTR)addr, &hModule);

	CHAR moduleName[MAX_PATH] = { 0 };
	DWORD len = GetModuleFileNameA(hModule, moduleName, MAX_PATH);
	if (0 == len || maxLen < strlen(moduleName) + 1)
		return HGBASE_ERR_FAIL;
	strcpy(name, moduleName);
#endif
	return HGBASE_ERR_OK;
}

HGResult HGAPI HGBase_GetUuid(HGChar* uuid, HGUInt maxLen)
{
	if (NULL == uuid || 0 == maxLen)
	{
		return HGBASE_ERR_INVALIDARG;
	}

#if !defined(HG_CMP_MSC)
	uuid_t id;
	uuid_generate(id);

	char str[128] = {0};
	uuid_unparse(id, str);
	if (maxLen < strlen(str) + 1)
		return HGBASE_ERR_FAIL;
	strcpy(uuid, str);
#else
	GUID guid;
	if (S_OK != CoCreateGuid(&guid))
		return HGBASE_ERR_FAIL;

	char str[128] = {0};
	sprintf(str, "%08x%04x%04x%02x%02x%02x%02x%02x%02x%02x%02x", guid.Data1, guid.Data2, guid.Data3, guid.Data4[0], guid.Data4[1],
		guid.Data4[2], guid.Data4[3], guid.Data4[4], guid.Data4[5], guid.Data4[6], guid.Data4[7]);
	if (maxLen < strlen(str) + 1)
		return HGBASE_ERR_FAIL;
	strcpy(uuid, str);
#endif
	return HGBASE_ERR_OK;
}

HGResult HGAPI HGBase_GetTmpFileName(const HGChar* suffix, HGChar* fileName, HGUInt maxLen)
{
	if (NULL == fileName || 0 == maxLen)
	{
		return HGBASE_ERR_INVALIDARG;
	}

	HGChar path[256] = { 0 }, uuid[128] = {0};
	HGBase_GetTmpPath(path, 256);
	HGBase_GetUuid(uuid, 128);
	strcat(path, uuid);
	if (NULL != suffix && 0 != *suffix)
	{
		strcat(path, ".");
		strcat(path, suffix);
	}

	if (maxLen < strlen(path) + 1)
		return HGBASE_ERR_FAIL;
	strcpy(fileName, path);
	return HGBASE_ERR_OK;
}

HGResult HGAPI HGBase_GetConfigPath(HGChar* configPath, HGUInt maxLen)
{
	if (NULL == configPath || 0 == maxLen)
	{
		return HGBASE_ERR_INVALIDARG;
	}

	HGChar moduleName[256];
	HGBase_GetModuleName(NULL, moduleName, 256);
	HGChar modulePath[256];
	HGBase_GetFilePath(moduleName, modulePath, 256);
	strcat(modulePath, "first.cfg");

	HGChar dataPath[256] = {0};
	HGBase_GetProfileString(modulePath, "constraints", "local_data_path", "", dataPath, 256);
	if ('\0' != *dataPath)
	{
#if defined(HG_CMP_MSC)
		if (dataPath[strlen(dataPath) - 1] != '\\')
			strcat(dataPath, "\\");
		strcat(dataPath, "Cfg\\");
#else
		if (dataPath[strlen(dataPath) - 1] != '/')
			strcat(dataPath, "/");
		strcat(dataPath, "Cfg/");
#endif

		if (maxLen < strlen(dataPath) + 1)
			return HGBASE_ERR_FAIL;
		strcpy(configPath, dataPath);
		return HGBASE_ERR_OK;
	}

#if defined(HG_CMP_MSC)
	CHAR cfgPath[MAX_PATH] = { 0 };
	BOOL ret = SHGetSpecialFolderPathA(NULL, cfgPath, CSIDL_APPDATA, FALSE);
	if (!ret)
		return HGBASE_ERR_FAIL;
	if (cfgPath[strlen(cfgPath) - 1] != '\\')
		strcat(cfgPath, "\\");

	HGChar procName[64];
	HGBase_GetProcessName(procName, 64);
	strcat(cfgPath, procName);
	strcat(cfgPath, "\\Cfg\\");
#else
	char cfgPath[512] = { 0 };
	struct passwd* pw = getpwuid(getuid());
	strcpy(cfgPath, pw->pw_dir);
	if (cfgPath[strlen(cfgPath) - 1] != '/')
		strcat(cfgPath, "/");

	strcat(cfgPath, ".");
	HGChar procName[64];
	HGBase_GetProcessName(procName, 64);
	strcat(cfgPath, procName);
	strcat(cfgPath, "/Cfg/");
#endif

	if (maxLen < strlen(cfgPath) + 1)
		return HGBASE_ERR_FAIL;
	strcpy(configPath, cfgPath);
	return HGBASE_ERR_OK;
}

HGResult HGAPI HGBase_GetLogFilePath(HGChar* logFilePath, HGUInt maxLen)
{
	if (NULL == logFilePath || 0 == maxLen)
	{
		return HGBASE_ERR_INVALIDARG;
	}

	HGChar moduleName[256];
	HGBase_GetModuleName(NULL, moduleName, 256);
	HGChar modulePath[256];
	HGBase_GetFilePath(moduleName, modulePath, 256);
	strcat(modulePath, "first.cfg");

	HGChar dataPath[256] = { 0 };
	HGBase_GetProfileString(modulePath, "constraints", "local_data_path", "", dataPath, 256);
	if ('\0' != *dataPath)
	{
#if defined(HG_CMP_MSC)
		if (dataPath[strlen(dataPath) - 1] != '\\')
			strcat(dataPath, "\\");
		strcat(dataPath, "Cfg\\");
#else
		if (dataPath[strlen(dataPath) - 1] != '/')
			strcat(dataPath, "/");
		strcat(dataPath, "Cfg/");
#endif

		if (maxLen < strlen(dataPath) + 1)
			return HGBASE_ERR_FAIL;
		strcpy(logFilePath, dataPath);
		return HGBASE_ERR_OK;
	}

#if defined(HG_CMP_MSC)
	CHAR logPath[MAX_PATH] = { 0 };
	BOOL ret = SHGetSpecialFolderPathA(NULL, logPath, CSIDL_APPDATA, FALSE);
	if (!ret)
		return HGBASE_ERR_FAIL;
	if (logPath[strlen(logPath) - 1] != '\\')
		strcat(logPath, "\\");

	HGChar procName[64];
	HGBase_GetProcessName(procName, 64);
	strcat(logPath, procName);
	strcat(logPath, "\\Log\\");
#else
	char logPath[512] = { 0 };
	struct passwd* pw = getpwuid(getuid());
	strcpy(logPath, pw->pw_dir);
	if (logPath[strlen(logPath) - 1] != '/')
		strcat(logPath, "/");

	strcat(logPath, ".");
	HGChar procName[64];
	HGBase_GetProcessName(procName, 64);
	strcat(logPath, procName);
	strcat(logPath, "/Log/");
#endif

	if (maxLen < strlen(logPath) + 1)
		return HGBASE_ERR_FAIL;
	strcpy(logFilePath, logPath);
	return HGBASE_ERR_OK;
}

HGResult HGAPI HGBase_GetDocumentsPath(HGChar* documentsPath, HGUInt maxLen)
{
	if (NULL == documentsPath || 0 == maxLen)
	{
		return HGBASE_ERR_INVALIDARG;
	}

#if defined(HG_CMP_MSC)
	CHAR docPath[MAX_PATH] = { 0 };
	BOOL ret = SHGetSpecialFolderPathA(NULL, docPath, CSIDL_MYDOCUMENTS, FALSE);
	if (!ret)
		return HGBASE_ERR_FAIL;
	if (docPath[strlen(docPath) - 1] != '\\')
		strcat(docPath, "\\");
#else
	char docPath[512] = { 0 };
	struct passwd* pw = getpwuid(getuid());
	strcpy(docPath, pw->pw_dir);
	if (docPath[strlen(docPath) - 1] != '/')
		strcat(docPath, "/");
	std::string docName;
	FILE* file = popen("cat $HOME/.config/user-dirs.dirs | grep DOCUMENTS | tail -1 | cut -d '=' -f 2 | sed 's/\"//g'", "r");
	if (NULL != file)
	{
		char data[1024] = { 0 };
		if (NULL != fgets(data, 1024, file))
		{
			char* start = strchr(data, '/');
			if (NULL != start && 0 != *(start + 1))
			{
				char* end = strchr(start + 1, '\n');
				if (NULL != end)
					*end = 0;
				docName = start + 1;
			}
		}

		pclose(file);
	}
	if (docName.empty())
		docName = "Documents";
	strcat(docPath, docName.c_str());
	strcat(docPath, "/");
#endif

	if (maxLen < strlen(docPath) + 1)
		return HGBASE_ERR_FAIL;
	strcpy(documentsPath, docPath);
	return HGBASE_ERR_OK;
}

HGResult HGAPI HGBase_GetProcessName(HGChar* name, HGUInt maxLen)
{
	if (NULL == name || 0 == maxLen)
	{
		return HGBASE_ERR_INVALIDARG;
	}

#if defined(HG_CMP_MSC)
	CHAR moduleName[MAX_PATH] = { 0 };
	DWORD len = GetModuleFileNameA(NULL, moduleName, MAX_PATH);
	if (0 == len)
		return HGBASE_ERR_FAIL;
	CStringA strModuleName(moduleName);
	int pos = strModuleName.ReverseFind('\\');
	if (-1 == pos)
		return HGBASE_ERR_FAIL;
	strModuleName = strModuleName.Right(strModuleName.GetLength() - pos - 1);
	pos = strModuleName.ReverseFind('.');
	if (-1 != pos)
		strModuleName = strModuleName.Left(pos);
	if (maxLen < (HGUInt)strModuleName.GetLength() + 1)
		return HGBASE_ERR_FAIL;
	strcpy(name, strModuleName);
#else
	char aucPathBuf[1024] = { 0 };
	if (readlink("/proc/self/exe", aucPathBuf, 1024) <= 0)
		return HGBASE_ERR_FAIL;
	const char* pcName = strrchr(aucPathBuf, '/');
	if (NULL == pcName)
		return HGBASE_ERR_FAIL;
	++pcName;
	std::string procName(pcName);
	const char* pcSuffix = strrchr(procName.c_str(), '.');
	if (NULL != pcSuffix)
		procName = procName.substr(0, pcSuffix - procName.c_str());
	if (maxLen < (HGUInt)procName.size() + 1)
		return HGBASE_ERR_FAIL;
	strcpy(name, procName.c_str());
#endif

	return HGBASE_ERR_OK;
}

HGResult HGAPI HGBase_GetFilePath(const HGChar* fileName, HGChar* path, HGUInt maxLen)
{
	if (NULL == fileName || NULL == path || 0 == maxLen)
	{
		return HGBASE_ERR_INVALIDARG;
	}

#if defined(HG_CMP_MSC)
	const char* pcName = strrchr(fileName, '\\');
	if (NULL == pcName)
	{
		pcName = strrchr(fileName, '/');
		if (NULL == pcName)
			return HGBASE_ERR_FAIL;
	}
#else
	const char* pcName = strrchr(fileName, '/');
	if (NULL == pcName)
		return HGBASE_ERR_FAIL;
#endif

	++pcName;
	if (maxLen < (HGUInt)(pcName - fileName + 1))
		return HGBASE_ERR_FAIL;
	memcpy(path, fileName, pcName - fileName);
	path[pcName - fileName] = 0;
	return HGBASE_ERR_OK;
}

HGResult HGAPI HGBase_GetFileName(const HGChar* fileName, HGChar* name, HGUInt maxLen)
{
	if (NULL == fileName || NULL == name || 0 == maxLen)
	{
		return HGBASE_ERR_INVALIDARG;
	}

#if defined(HG_CMP_MSC)
	const char* pcName = strrchr(fileName, '\\');
	if (NULL == pcName)
	{
		pcName = strrchr(fileName, '/');
		if (NULL == pcName)
			return HGBASE_ERR_FAIL;
	}
#else
	const char* pcName = strrchr(fileName, '/');
	if (NULL == pcName)
		return HGBASE_ERR_FAIL;
#endif

	++pcName;
	if (maxLen < strlen(pcName) + 1)
		return HGBASE_ERR_FAIL;
	strcpy(name, pcName);
	return HGBASE_ERR_OK;
}

HGResult HGAPI HGBase_GetFilePrefix(const HGChar* fileName, HGChar* prefix, HGUInt maxLen)
{
	if (NULL == fileName || NULL == prefix || 0 == maxLen)
	{
		return HGBASE_ERR_INVALIDARG;
	}

#if defined(HG_CMP_MSC)
	CStringA strPrefix;
	CStringA strFileName(fileName);
	int pos = strFileName.ReverseFind('.');
	if (-1 == pos)
		strPrefix = strFileName;
	else
	{
		CStringA strSuffix = strFileName.Right(strFileName.GetLength() - pos - 1);
		if (-1 != strSuffix.Find('\\') || -1 != strSuffix.Find('/'))
			strPrefix = strFileName;
		else
			strPrefix = strFileName.Left(pos);
	}
	if (maxLen < (HGUInt)strPrefix.GetLength() + 1)
		return HGBASE_ERR_FAIL;
	strcpy(prefix, strPrefix);
#else
	std::string strPrefix;
	const char* pcSuffix = strrchr(fileName, '.');
	if (NULL == pcSuffix)
		strPrefix = fileName;
	else
	{
		if (NULL != strchr(pcSuffix + 1, '/'))
			strPrefix = fileName;
		else
			strPrefix = std::string(fileName, pcSuffix - fileName);
	}
	if (maxLen < (HGUInt)strPrefix.size() + 1)
		return HGBASE_ERR_FAIL;
	strcpy(prefix, strPrefix.c_str());
#endif

	return HGBASE_ERR_OK;
}

HGResult HGAPI HGBase_GetFileSuffix(const HGChar* fileName, HGChar* suffix, HGUInt maxLen)
{
	if (NULL == fileName || NULL == suffix || 0 == maxLen)
	{
		return HGBASE_ERR_INVALIDARG;
	}

#if defined(HG_CMP_MSC)
	CStringA strFileName(fileName);
	int pos = strFileName.ReverseFind('.');
	if (-1 == pos)
		return HGBASE_ERR_FAIL;
	CStringA strSuffix = strFileName.Right(strFileName.GetLength() - pos - 1);
	if (-1 != strSuffix.Find('\\') || -1 != strSuffix.Find('/'))
		return HGBASE_ERR_FAIL;
	if (maxLen < (HGUInt)strSuffix.GetLength() + 1)
		return HGBASE_ERR_FAIL;
	strcpy(suffix, strSuffix);
#else
	const char* pcSuffix = strrchr(fileName, '.');
	if (NULL == pcSuffix)
		return HGBASE_ERR_FAIL;
	++pcSuffix;
	if (NULL != strchr(pcSuffix, '/'))
		return HGBASE_ERR_FAIL;
	if (maxLen < (HGUInt)strlen(pcSuffix) + 1)
		return HGBASE_ERR_FAIL;
	strcpy(suffix, pcSuffix);
#endif

	return HGBASE_ERR_OK;
}

HGResult HGAPI HGBase_StandardiseFileName(const HGChar* fileName, HGChar* result, HGUInt maxLen)
{
	if (NULL == fileName || NULL == result || 0 == maxLen)
	{
		return HGBASE_ERR_INVALIDARG;
	}

	std::string stdFileName;
#if defined(HG_CMP_MSC)
	bool separator = false;
	for (const HGChar* p = fileName; *p != 0; ++p)
	{
		if (*p == '\\' || *p == '/')
		{
			if (!separator)
			{
				stdFileName.push_back('\\');
				separator = true;
			}
		}
		else
		{
			stdFileName.push_back(*p);
			separator = false;
		}
	}
#else
	bool separator = false;
	for (const HGChar* p = fileName; *p != 0; ++p)
	{
		if (*p == '/')
		{
			if (!separator)
			{
				stdFileName.push_back('/');
				separator = true;
			}
}
		else
		{
			stdFileName.push_back(*p);
			separator = false;
		}
	}
#endif

	if (maxLen < (HGUInt)stdFileName.size() + 1)
		return HGBASE_ERR_FAIL;
	strcpy(result, stdFileName.c_str());
	return HGBASE_ERR_OK;
}