git-svn-id: https://server.scottellis.com.au/svn/mim_plugs@16 4f64403b-2f21-0410-a795-97e2b3489a10

1 files changed, 247 insertions, 0 deletions

diff --git a/updater/utils.cpp b/updater/utils.cpp
new file mode 100644
index 0000000..f370e68
--- /dev/null
+++ b/updater/utils.cpp
@@ -0,0 +1,247 @@
+#include "common.h"

+#include "utils.h"

+

+bool VersionFromString(const char *szVer, DWORD *pdwVer) {

+	char *p = (char *)szVer;

+	*pdwVer = 0;

+

+	int bytes = 1; // we start in the first 'byte'

+	int digit_count = 0;

+	while(*p && bytes <= 4 && digit_count <= 3) {

+		if(*p >= '0' && *p <= '9') {

+			*pdwVer = (*pdwVer & 0xFFFFFF00) + (*pdwVer & 0xFF) * 10 + (*p - '0');

+			digit_count++;

+		} else if(*p == '.') {

+			*pdwVer = *pdwVer << 8;

+			bytes++;

+			digit_count = 0;

+		} else {

+			if(bytes < 3) // allow other chars on the end (e.g. space)

+				return false; // incompatible version string

+			else 

+				return true;

+		}

+		p++;

+	}

+

+	// version must be x.x.x.x format (for now - until a convention is established

+	// whereby we assume '0' bytes as either prefix or suffix)

+	// 15/3/06 - allowing 3 digit version numbers (ostensibly for spamfilter definition files which use date for version)

+	return (bytes >= 3);

+

+}

+

+int CheckForFileID(char *update_url, char *version_url, char *name) {

+	if(strlen(update_url) > 45 && strncmp(update_url, MIM_DOWNLOAD_URL_PREFIX, 45) == 0) {

+		char *p = update_url + 45;

+		return atoi(p);

+	}

+	if(strlen(update_url) > 51 && strncmp(update_url, "http://www.miranda-im.org/download/feed.php?dlfile=", 51) == 0) {

+		char *p = update_url + 51;

+		return atoi(p);

+	}

+	if(strlen(update_url) > 47 && strncmp(update_url, "http://miranda-im.org/download/feed.php?dlfile=", 47) == 0) {

+		char *p = update_url + 47;

+		return atoi(p);

+	}

+	return -1;

+}

+

+bool CreatePath(const TCHAR *path) {

+	if(!path) return false;

+

+	TCHAR folder[MAX_PATH];

+	_tcscpy(folder, path);

+	int i = 0;

+

+	if(folder[0] && folder[1] && folder[1] == ':') i += 2; // skip drive letter

+

+	SetLastError(ERROR_SUCCESS);

+	TCHAR *p = &folder[i];

+	while(folder[i]) {

+		p = _tcschr(p, _T('\\'));

+		if(p) {

+			i = p - folder;

+			p++;

+

+			if(folder[i]) folder[i] = 0;

+		} else 

+			i = _tcslen(folder);

+

+		/*

+		// this fails when the user does not have permission to create intermediate folders

+		if(!CreateDirectory(folder, 0)) {

+			DWORD err = GetLastError();

+			if(err != ERROR_ALREADY_EXISTS) {

+				//MessageBox(0, Translate("Could not create temporary folder."), Translate("Error"), MB_OK | MB_ICONERROR);

+				//return 1;

+				return false;

+			}

+		}

+		*/

+		CreateDirectory(folder, 0);

+

+		folder[i] = path[i];

+	}

+

+	DWORD lerr = GetLastError();

+	return (lerr == ERROR_SUCCESS || lerr == ERROR_ALREADY_EXISTS);

+

+	/*

+	// this function seems to be unavailable in shell32.dll under NT4

+	int ret = SHCreateDirectoryEx(0, path, 0);

+	return  (ret == ERROR_SUCCESS) || (ret == ERROR_FILE_EXISTS) || (ret == ERROR_ALREADY_EXISTS);

+	*/

+}

+

+// must 'free' return val

+TCHAR *GetTString(const char *asc) {

+	if(!asc) return 0;

+

+#ifdef _UNICODE 

+	wchar_t *ret;

+	int code_page = CP_ACP;

+	if(ServiceExists(MS_LANGPACK_GETCODEPAGE)) code_page = CallService(MS_LANGPACK_GETCODEPAGE, 0, 0);

+	int size = MultiByteToWideChar(code_page, MB_PRECOMPOSED, asc, -1, 0, 0);

+	ret = (wchar_t *)malloc(sizeof(wchar_t) * size);

+	MultiByteToWideChar(code_page, MB_PRECOMPOSED, asc, -1, ret, size);

+	return ret;

+#else

+	return _strdup(asc);

+#endif

+}

+

+TCHAR *GetTStringACP(const char *asc) {

+	if(!asc) return 0;

+

+#ifdef _UNICODE 

+	wchar_t *ret;

+

+	int size = MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, asc, -1, 0, 0);

+	ret = (wchar_t *)malloc(sizeof(wchar_t) * size);

+	MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, asc, -1, ret, size);

+	return ret;

+#else

+	return _strdup(asc);

+#endif

+}

+

+char *GetAString(const TCHAR *t) {

+	if(!t) return 0;

+

+#ifdef _UNICODE

+	char *ret;

+

+	int code_page = CP_ACP;

+	if(ServiceExists(MS_LANGPACK_GETCODEPAGE)) code_page = CallService(MS_LANGPACK_GETCODEPAGE, 0, 0);

+	int size = WideCharToMultiByte(code_page, 0, t, -1, 0, 0, 0, 0);

+	ret = (char *)malloc(size);

+	WideCharToMultiByte(code_page, 0, t, -1, ret, size, 0, 0);

+	return ret;

+#else

+	return _strdup(t);

+#endif

+}

+

+void RemoveFolder(const TCHAR *src_folder) {

+	TCHAR szFilesPath[MAX_PATH], szNewFileName[MAX_PATH];

+	

+	_tcscpy(szFilesPath, src_folder);

+	_tcscat(szFilesPath, _T("\\*.*"));

+

+	WIN32_FIND_DATA findData;

+	HANDLE hFileSearch = FindFirstFile(szFilesPath, &findData);

+	if(hFileSearch != INVALID_HANDLE_VALUE) {

+		do {

+			if(findData.cFileName[0] != _T('.')) {

+				_tcslwr(findData.cFileName);

+				_tcscpy(szNewFileName, src_folder);

+				_tcscat(szNewFileName, _T("\\"));

+				_tcscat(szNewFileName, findData.cFileName);

+

+				if(findData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)

+					// recurse

+					RemoveFolder(szNewFileName);

+				else

+					DeleteFile(szNewFileName);

+			}

+		} while(FindNextFile(hFileSearch, &findData));

+		FindClose(hFileSearch);

+	}

+

+	RemoveDirectory(src_folder);

+}

+

+bool FolderIsEmpty(const TCHAR *folder) {

+	TCHAR szFilesPath[MAX_PATH];

+	

+	_tcscpy(szFilesPath, folder);

+	_tcscat(szFilesPath, _T("\\*.*"));

+

+	WIN32_FIND_DATA findData;

+	HANDLE hFileSearch = FindFirstFile(szFilesPath, &findData);

+	if(hFileSearch != INVALID_HANDLE_VALUE) {

+		do {

+			if(_tcscmp(findData.cFileName, _T(".")) != 0 && _tcscmp(findData.cFileName, _T("..")) != 0) {

+				FindClose(hFileSearch);

+				return false;

+			}

+		} while(FindNextFile(hFileSearch, &findData));

+		FindClose(hFileSearch);

+	}

+

+	return true;

+}

+

+bool DeleteNonDlls(const TCHAR *folder) {

+	TCHAR szFilesPath[MAX_PATH], szFilename[MAX_PATH];

+

+	{

+		char buff[200];

+#ifdef _UNICODE

+		char mbFname[MAX_PATH];

+		WideCharToMultiByte(CP_ACP, 0, folder, -1, mbFname, MAX_PATH, 0, 0);

+		sprintf(buff, "Deleting non-dlls in %s", mbFname);

+#else

+		sprintf(buff, "Deleting non-dlls in %s", folder);

+#endif

+		NLog(buff);

+	}

+

+	_tcscpy(szFilesPath, folder);

+	_tcscpy(szFilename, folder);

+	_tcscat(szFilename, _T("\\"));

+	TCHAR *p = szFilename + _tcslen(szFilename);

+	_tcscat(szFilesPath, _T("\\*.*"));

+

+	WIN32_FIND_DATA findData;

+	HANDLE hFileSearch = FindFirstFile(szFilesPath, &findData);

+	if(hFileSearch != INVALID_HANDLE_VALUE) {

+		do {

+			if(_tcscmp(findData.cFileName, _T(".")) != 0 && _tcscmp(findData.cFileName, _T("..")) != 0) {

+				_tcscpy(p, findData.cFileName);

+				if(findData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {

+					DeleteNonDlls(szFilename);

+				} else {

+					if(_tcsstr(findData.cFileName, _T(".dll")) == 0) {

+						{

+							char buff[200];

+#ifdef _UNICODE

+							char mbFname[MAX_PATH];

+							WideCharToMultiByte(CP_ACP, 0, szFilename, -1, mbFname, MAX_PATH, 0, 0);

+							sprintf(buff, "Deleting %s", mbFname);

+#else

+							sprintf(buff, "Deleting %s", szFilename);

+#endif

+							NLog(buff);

+						}

+						DeleteFile(szFilename);	

+					}

+				}

+			}

+		} while(FindNextFile(hFileSearch, &findData));

+		FindClose(hFileSearch);

+	}

+

+	return true;

+}
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