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-rw-r--r--plugins/NewEventNotify/utils.c543
1 files changed, 543 insertions, 0 deletions
diff --git a/plugins/NewEventNotify/utils.c b/plugins/NewEventNotify/utils.c
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+++ b/plugins/NewEventNotify/utils.c
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+/*
+ Name: NewEventNotify - Plugin for Miranda IM
+ File: utils.c - Utility functions for Unicode support & other tiny stuff
+ Version: 2.2.0
+ Description: Notifies you when you receive a message
+ Author: Joe @ Whale, <jokusoftware@miranda-im.org>
+ Date: 05.07.07 13:04
+ Copyright: (C) 2007-2008 Joe @ Whale
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*/
+
+#include "neweventnotify.h"
+
+
+BOOL __fastcall NENGetSettingBool(char* szSetting, BOOL bDef)
+{
+ return (BOOL)DBGetContactSettingByte(NULL, MODULE, szSetting, bDef);
+}
+
+int __fastcall NENWriteSettingBool(char* szSetting, BOOL bValue)
+{
+ return DBWriteContactSettingByte(NULL, MODULE, szSetting, (BYTE)bValue);
+}
+
+/* a strlen() that likes NULL */
+size_t __fastcall strlennull(const char *string)
+{
+ if (string)
+ return strlen(string);
+
+ return 0;
+}
+
+size_t __fastcall strlenT(const TCHAR *string)
+{
+ if (string)
+ {
+ if (g_UnicodeCore)
+ return wcslen((WCHAR*)string);
+ else
+ return strlen((char*)string);
+ }
+ return 0;
+}
+
+TCHAR* __fastcall strdupT(const TCHAR *string)
+{
+ if (string)
+ {
+ if (g_UnicodeCore)
+ return (TCHAR*)wcsdup((WCHAR*)string);
+ else
+ return (TCHAR*)strdup((char*)string);
+ }
+ return NULL;
+}
+
+TCHAR* __fastcall strcpyT(TCHAR* dest, const TCHAR* src)
+{
+ if (src)
+ {
+ if (g_UnicodeCore)
+ return (TCHAR*)wcscpy((WCHAR*)dest, (WCHAR*)src);
+ else
+ return (TCHAR*)strcpy((char*)dest, (char*)src);
+ }
+ return dest;
+}
+
+TCHAR* __fastcall strncpyT(TCHAR* dest, const TCHAR* src, size_t len)
+{
+ if (src)
+ {
+ if (g_UnicodeCore)
+ return (TCHAR*)wcsncpy((WCHAR*)dest, (WCHAR*)src, len);
+ else
+ return (TCHAR*)strncpy((char*)dest, (char*)src, len);
+ }
+ return dest;
+}
+
+TCHAR* __fastcall strcatT(TCHAR* dest, const TCHAR* src)
+{
+ if (src)
+ {
+ if (g_UnicodeCore)
+ return (TCHAR*)wcscat((WCHAR*)dest, (WCHAR*)src);
+ else
+ return (TCHAR*)strcat((char*)dest, (char*)src);
+ }
+ return dest;
+}
+
+int _snprintfT(TCHAR *buffer, size_t count, const char* fmt, ...)
+{
+ va_list va;
+ int len;
+
+ va_start(va, fmt);
+ if (g_UnicodeCore)
+ {
+ TCHAR* wfmt = ansi_to_tchar(fmt);
+
+ len = _vsnwprintf((WCHAR*)buffer, count-1, (WCHAR*)wfmt, va);
+ ((WCHAR*)buffer)[count-1] = 0;
+ free(wfmt);
+ }
+ else
+ {
+ len = _vsnprintf((char*)buffer, count-1, fmt, va);
+ ((char*)buffer)[count-1] = 0;
+ }
+ va_end(va);
+ return len;
+}
+
+TCHAR* __fastcall NENTranslateT(const char* src, const WCHAR* unibuf)
+{ // this takes Ascii strings only!!!
+ char* szRes = NULL;
+
+ if (!strlennull(src))
+ { // for the case of empty strings
+ return "";
+ }
+
+ if (g_UnicodeCore)
+ { // we give WCHAR
+ WCHAR *unicode;
+ int wchars, err;
+
+ wchars = MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, src,
+ strlennull(src), NULL, 0);
+
+ if (wchars == 0) return NULL; // Failure
+
+ unicode = (WCHAR*)unibuf;
+ if (!unicode)
+ unicode = (WCHAR*)malloc((wchars + 1) * sizeof(WCHAR));
+
+ unicode[wchars] = 0;
+
+ err = MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, src,
+ strlennull(src), unicode, wchars);
+ if (err != wchars) return NULL; // Failure
+
+ return (TCHAR*)TranslateW(unicode);
+ }
+ else
+ return (TCHAR*)Translate(src);
+}
+
+static BOOL bHasCP_UTF8 = FALSE;
+
+
+void InitI18N(void)
+{
+ CPINFO CPInfo;
+
+
+ bHasCP_UTF8 = GetCPInfo(CP_UTF8, &CPInfo);
+}
+
+
+// Scans a string encoded in UTF-8 to verify that it contains
+// only valid sequences. It will return 1 if the string contains
+// only legitimate encoding sequences; otherwise it will return 0;
+// From 'Secure Programming Cookbook', John Viega & Matt Messier, 2003
+int UTF8_IsValid(const unsigned char* pszInput)
+{
+ int nb, i;
+ const unsigned char* c = pszInput;
+
+ if (!pszInput) return 0;
+
+ for (c = pszInput; *c; c += (nb + 1))
+ {
+ if (!(*c & 0x80))
+ nb = 0;
+ else if ((*c & 0xc0) == 0x80) return 0;
+ else if ((*c & 0xe0) == 0xc0) nb = 1;
+ else if ((*c & 0xf0) == 0xe0) nb = 2;
+ else if ((*c & 0xf8) == 0xf0) nb = 3;
+ else if ((*c & 0xfc) == 0xf8) nb = 4;
+ else if ((*c & 0xfe) == 0xfc) nb = 5;
+
+ for (i = 1; i<=nb; i++) // we this forward, do not cross end of string
+ if ((*(c + i) & 0xc0) != 0x80)
+ return 0;
+ }
+
+ return 1;
+}
+
+
+/*
+ * The following UTF8 routines are
+ *
+ * Copyright (C) 2001 Peter Harris <peter.harris@hummingbird.com>
+ * Copyright (C) 2001 Edmund Grimley Evans <edmundo@rano.org>
+ *
+ * under a GPL license
+ *
+ * --------------------------------------------------------------
+ * Convert a string between UTF-8 and the locale's charset.
+ * Invalid bytes are replaced by '#', and characters that are
+ * not available in the target encoding are replaced by '?'.
+ *
+ * If the locale's charset is not set explicitly then it is
+ * obtained using nl_langinfo(CODESET), where available, the
+ * environment variable CHARSET, or assumed to be US-ASCII.
+ *
+ * Return value of conversion functions:
+ *
+ * -1 : memory allocation failed
+ * 0 : data was converted exactly
+ * 1 : valid data was converted approximately (using '?')
+ * 2 : input was invalid (but still converted, using '#')
+ * 3 : unknown encoding (but still converted, using '?')
+ */
+
+
+
+/*
+ * Convert a string between UTF-8 and the locale's charset.
+ */
+unsigned char *make_utf8_string(const wchar_t *unicode)
+{
+ int size = 0;
+ int index = 0;
+ int out_index = 0;
+ unsigned char* out;
+ unsigned short c;
+
+ if (!unicode) return NULL;
+
+ /* first calculate the size of the target string */
+ c = unicode[index++];
+ while (c)
+ {
+ if (c < 0x0080)
+ size += 1;
+ else if (c < 0x0800)
+ size += 2;
+ else
+ size += 3;
+ c = unicode[index++];
+ }
+
+ out = (unsigned char*)malloc(size + 1);
+ if (out == NULL)
+ return NULL;
+ index = 0;
+
+ c = unicode[index++];
+ while (c)
+ {
+ if (c < 0x080)
+ {
+ out[out_index++] = (unsigned char)c;
+ }
+ else if (c < 0x800)
+ {
+ out[out_index++] = 0xc0 | (c >> 6);
+ out[out_index++] = 0x80 | (c & 0x3f);
+ }
+ else
+ {
+ out[out_index++] = 0xe0 | (c >> 12);
+ out[out_index++] = 0x80 | ((c >> 6) & 0x3f);
+ out[out_index++] = 0x80 | (c & 0x3f);
+ }
+ c = unicode[index++];
+ }
+ out[out_index] = 0x00;
+
+ return out;
+}
+
+
+
+WCHAR *make_unicode_string(const unsigned char *utf8)
+{
+ int size = 0, index = 0, out_index = 0;
+ wchar_t *out;
+ unsigned char c;
+
+ if (!utf8) return NULL;
+
+ /* first calculate the size of the target string */
+ c = utf8[index++];
+ while (c)
+ {
+ if ((c & 0x80) == 0)
+ {
+ index += 0;
+ }
+ else if ((c & 0xe0) == 0xe0)
+ {
+ index += 2;
+ }
+ else
+ {
+ index += 1;
+ }
+ size += 1;
+ c = utf8[index++];
+ }
+
+ out = (wchar_t*)malloc((size + 1) * sizeof(wchar_t));
+ if (out == NULL)
+ return NULL;
+ index = 0;
+
+ c = utf8[index++];
+ while (c)
+ {
+ if((c & 0x80) == 0)
+ {
+ out[out_index++] = c;
+ }
+ else if((c & 0xe0) == 0xe0)
+ {
+ out[out_index] = (c & 0x1F) << 12;
+ c = utf8[index++];
+ out[out_index] |= (c & 0x3F) << 6;
+ c = utf8[index++];
+ out[out_index++] |= (c & 0x3F);
+ }
+ else
+ {
+ out[out_index] = (c & 0x3F) << 6;
+ c = utf8[index++];
+ out[out_index++] |= (c & 0x3F);
+ }
+ c = utf8[index++];
+ }
+ out[out_index] = 0;
+
+ return out;
+}
+
+
+
+int utf8_encode(const char *from, char **to)
+{
+ wchar_t *unicode;
+ int wchars, err;
+
+
+ wchars = MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, from,
+ strlennull(from), NULL, 0);
+
+ if (wchars == 0)
+ {
+// fprintf(stderr, "Unicode translation error %d\n", GetLastError());
+ return -1;
+ }
+
+ unicode = (wchar_t*)_alloca((wchars + 1) * sizeof(unsigned short));
+ unicode[wchars] = 0;
+
+ err = MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, from,
+ strlennull(from), unicode, wchars);
+ if(err != wchars)
+ {
+// fprintf(stderr, "Unicode translation error %d\n", GetLastError());
+ return -1;
+ }
+
+ /* On NT-based windows systems, we could use WideCharToMultiByte(), but
+ * MS doesn't actually have a consistent API across win32.
+ */
+ *to = make_utf8_string(unicode);
+
+ return 0;
+}
+
+
+
+// Returns 0 on error, 1 on success
+int utf8_decode(const char *from, char **to)
+{
+ int nResult = 0;
+
+// _ASSERTE(!(*to)); // You passed a non-zero pointer, make sure it doesnt point to unfreed memory
+
+ // Validate the string
+ if (!UTF8_IsValid(from))
+ return 0;
+
+ // Use the native conversion routines when available
+ if (bHasCP_UTF8)
+ {
+ WCHAR *wszTemp = NULL;
+ int inlen = strlennull(from);
+
+ wszTemp = (WCHAR *)_alloca(sizeof(WCHAR) * (inlen + 1));
+
+ // Convert the UTF-8 string to UCS
+ if (MultiByteToWideChar(CP_UTF8, 0, from, -1, wszTemp, inlen + 1))
+ {
+ // Convert the UCS string to local ANSI codepage
+ *to = (char*)malloc(inlen+1);
+ if (WideCharToMultiByte(CP_ACP, 0, wszTemp, -1, *to, inlen+1, NULL, NULL))
+ {
+ nResult = 1;
+ }
+ else
+ {
+ free(*to);
+ }
+ }
+ }
+ else
+ {
+ wchar_t *unicode;
+ int chars;
+ int err;
+
+ unicode = make_unicode_string(from);
+ if (unicode == NULL)
+ {
+// fprintf(stderr, "Out of memory processing string from UTF8 to UNICODE16\n");
+ return 0;
+ }
+
+ chars = WideCharToMultiByte(CP_ACP, WC_COMPOSITECHECK, unicode, -1, NULL, 0, NULL, NULL);
+
+ if(chars == 0)
+ {
+// fprintf(stderr, "Unicode translation error %d\n", GetLastError());
+ free(unicode);
+ return 0;
+ }
+
+ *to = (char*)malloc((chars + 1)*sizeof(unsigned char));
+ if(*to == NULL)
+ {
+// fprintf(stderr, "Out of memory processing string to local charset\n");
+ free(unicode);
+ return 0;
+ }
+
+ err = WideCharToMultiByte(CP_ACP, WC_COMPOSITECHECK, unicode, -1, *to, chars, NULL, NULL);
+ if (err != chars)
+ {
+// fprintf(stderr, "Unicode translation error %d\n", GetLastError());
+ free(unicode);
+ free(*to);
+ return 0;
+ }
+
+ free(unicode);
+
+ nResult = 1;
+ }
+
+ return nResult;
+}
+
+
+
+TCHAR* ansi_to_tchar(const char* src)
+{
+ if (g_UnicodeCore)
+ {
+ WCHAR *unicode;
+ int wchars, err;
+
+ wchars = MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, src, strlennull(src), NULL, 0);
+
+ if (wchars == 0) return NULL; // Failure
+
+ unicode = (WCHAR*)malloc((wchars + 1) * sizeof(WCHAR));
+ unicode[wchars] = 0;
+
+ err = MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, src, strlennull(src), unicode, wchars);
+ if (err != wchars)
+ {
+ free(unicode);
+ return NULL; // Failure
+ }
+
+ return (TCHAR*)unicode;
+ }
+ else
+ return strdupT((TCHAR*)src);
+}
+
+char* tchar_to_ansi(const TCHAR* src)
+{
+ if (g_UnicodeCore)
+ {
+ char *ansi;
+ int chars;
+ int err;
+
+ chars = WideCharToMultiByte(CP_ACP, WC_COMPOSITECHECK, (WCHAR*)src, -1, NULL, 0, NULL, NULL);
+
+ if (chars == 0) return NULL; // Failure
+
+ ansi = (char*)malloc((chars + 1)*sizeof(char));
+ if (ansi == NULL) return NULL; // Failure
+
+ err = WideCharToMultiByte(CP_ACP, WC_COMPOSITECHECK, (WCHAR*)src, -1, ansi, chars, NULL, NULL);
+ if (err != chars)
+ {
+ free(ansi);
+ return NULL;
+ }
+ return ansi;
+ }
+ else
+ return (char*)strdupT(src);
+}
+
+TCHAR* utf8_to_tchar(const unsigned char* utf)
+{
+ if (g_UnicodeCore)
+ return (TCHAR*)make_unicode_string(utf);
+ else
+ {
+ char* szAnsi = NULL;
+
+ if (utf8_decode(utf, &szAnsi))
+ return (TCHAR*)szAnsi;
+ else
+ return NULL; // Failure
+ }
+} \ No newline at end of file