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/*
Jabber Protocol Plugin for Miranda IM
Copyright (C) 2002-04 Santithorn Bunchua
Copyright (C) 2005-12 George Hazan
Copyright (C) 2007 Maxim Mluhov
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 "jabber.h"
struct CAPTCHA_FORM_PARAMS
{
LPCTSTR from;
LPCTSTR challenge;
LPCTSTR fromjid;
LPCTSTR sid;
LPCTSTR to;
LPCTSTR hint;
HBITMAP bmp;
int w,h;
TCHAR Result[MAX_PATH];
};
INT_PTR CALLBACK JabberCaptchaFormDlgProc(HWND hwndDlg, UINT msg, WPARAM wParam, LPARAM lParam)
{
CAPTCHA_FORM_PARAMS *params = (CAPTCHA_FORM_PARAMS*)GetWindowLongPtr(hwndDlg, GWLP_USERDATA);
switch (msg) {
case WM_INITDIALOG: {
TranslateDialogDefault(hwndDlg);
SendMessage(hwndDlg, WM_SETICON, ICON_BIG, (LPARAM)LoadSkinnedIconBig(IDI_KEYS));
SendMessage(hwndDlg, WM_SETICON, ICON_SMALL, (LPARAM)LoadSkinnedIcon(IDI_KEYS));
params = (CAPTCHA_FORM_PARAMS*)lParam;
LPCTSTR hint = params->hint;
if (hint == NULL)
hint = TranslateT("Enter the text you see");
SetDlgItemText(hwndDlg, IDC_INSTRUCTION, TranslateTS(hint));
SetWindowLongPtr(hwndDlg, GWLP_USERDATA, (LONG)params);
return TRUE;
}
case WM_CTLCOLORSTATIC:
switch(GetWindowLongPtr((HWND)lParam, GWL_ID)) {
case IDC_WHITERECT:
case IDC_INSTRUCTION:
case IDC_TITLE:
return (BOOL)GetStockObject(WHITE_BRUSH);
}
return NULL;
case WM_PAINT:
if (params) {
PAINTSTRUCT ps;
HDC hdc, hdcMem;
RECT rc;
GetClientRect(hwndDlg, &rc);
hdc = BeginPaint(hwndDlg, &ps);
hdcMem = CreateCompatibleDC(hdc);
HGDIOBJ hOld = SelectObject(hdcMem, params->bmp);
int y = (rc.bottom + rc.top - params->h) / 2;
int x = (rc.right + rc.left - params->w) / 2;
BitBlt(hdc, x, y, params->w, params->h, hdcMem, 0,0, SRCCOPY);
SelectObject(hdcMem, hOld);
DeleteDC(hdcMem);
EndPaint(hwndDlg, &ps);
}
break;
case WM_COMMAND:
switch (LOWORD(wParam)) {
case IDCANCEL:
EndDialog(hwndDlg, 0);
return TRUE;
case IDC_SUBMIT:
GetDlgItemText(hwndDlg, IDC_VALUE, params->Result, SIZEOF(params->Result));
EndDialog(hwndDlg, 1);
return TRUE;
}
break;
case WM_CLOSE:
EndDialog(hwndDlg, 0);
break;
case WM_DESTROY:
WindowFreeIcon(hwndDlg);
break;
}
return FALSE;
}
bool CJabberProto::ProcessCaptcha (HXML node, HXML parentNode, ThreadData* info) {
CAPTCHA_FORM_PARAMS param;
char *ImageBuf = 0;
const TCHAR *PicType = 0;
TCHAR *CaptchaPath = 0;
HXML x = xmlGetChildByTag(node, "x", "xmlns", _T(JABBER_FEAT_DATA_FORMS));
if (x == NULL)
return false;
HXML y = xmlGetChildByTag(x, _T("field"), _T("var"), _T("from"));
if (y == NULL)
return false;
if ((y = xmlGetChild(y, "value")) == NULL)
return false;
param.fromjid = xmlGetText(y);
if ((y = xmlGetChildByTag(x, _T("field"), _T("var"), _T("sid"))) == NULL)
return false;
if ((y = xmlGetChild(y, "value")) == NULL)
return false;
param.sid = xmlGetText(y);
if ((y = xmlGetChildByTag(x, _T("field"), _T("var"), _T("ocr"))) == NULL)
return false;
param.hint = xmlGetAttrValue (y, _T("label"));
param.from = xmlGetAttrValue(parentNode, _T("from"));
param.to = xmlGetAttrValue(parentNode, _T("to"));
param.challenge = xmlGetAttrValue(parentNode, _T("id"));
HXML o = xmlGetChild(parentNode, "data");
if (o == NULL || xmlGetText(o) == NULL)
return false;
GetCaptchaImage(parentNode, ImageBuf, PicType, CaptchaPath);
char* p = mir_t2a(CaptchaPath);
param.bmp = (HBITMAP) CallService(MS_UTILS_LOADBITMAP, 0, (LPARAM)p);
DeleteFile(CaptchaPath);
mir_free(CaptchaPath);
mir_free(p);
BITMAP bmp = {0};
GetObject(param.bmp, sizeof(bmp), &bmp);
param.w = bmp.bmWidth;
param.h = bmp.bmHeight;
int res = DialogBoxParam(hInst, MAKEINTRESOURCE(IDD_CAPTCHAFORM), NULL, JabberCaptchaFormDlgProc, (LPARAM)¶m);
if (lstrcmp(param.Result, _T("")) == 0 || !res)
sendCaptchaError(info, param.from, param.to, param.challenge);
else
sendCaptchaResult (param.Result, info, param.from, param.challenge, param.fromjid, param.sid);
return true;
}
void CJabberProto::GetCaptchaImage (HXML node, char *ImageBuf, const TCHAR *PicType, TCHAR*& CaptchaPath) {
HXML o = xmlGetChild(node , "data");
int bufferLen;
char* buffer = JabberBase64DecodeT(xmlGetText(o), &bufferLen);
if (buffer == NULL)
return;
const TCHAR *szPicType;
HXML m = xmlGetChild(node , "TYPE");
if (m == NULL || xmlGetText(m) == NULL) {
LBL_NoTypeSpecified:
switch(JabberGetPictureType(buffer)) {
case PA_FORMAT_GIF: szPicType = _T("image/gif"); break;
case PA_FORMAT_BMP: szPicType = _T("image/bmp"); break;
case PA_FORMAT_PNG: szPicType = _T("image/png"); break;
case PA_FORMAT_JPEG: szPicType = _T("image/jpeg"); break;
default:
goto LBL_Ret;
}
}
else {
const TCHAR *tszType = xmlGetText(m);
if ( !_tcscmp(tszType, _T("image/jpeg")) ||
!_tcscmp(tszType, _T("image/png")) ||
!_tcscmp(tszType, _T("image/gif")) ||
!_tcscmp(tszType, _T("image/bmp")))
szPicType = tszType;
else
goto LBL_NoTypeSpecified;
}
DWORD nWritten;
LBL_Ret:
TCHAR* ext = _tcsstr((TCHAR*)szPicType, _T("/"))+1;
TCHAR filename[MAX_PATH];
mir_sntprintf(filename, SIZEOF(filename), _T("%%TEMP%%\\captcha.%s"), ext);
CaptchaPath = Utils_ReplaceVarsT(filename);
HANDLE hFile = CreateFile(CaptchaPath, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
if (hFile == INVALID_HANDLE_VALUE)
goto LBL_Ret;
if ( !WriteFile(hFile, buffer, bufferLen, &nWritten, NULL))
goto LBL_Ret;
CloseHandle(hFile);
ImageBuf = buffer;
PicType = szPicType;
}
void CJabberProto::sendCaptchaResult(TCHAR* buf, ThreadData* info, LPCTSTR from, LPCTSTR challenge, LPCTSTR fromjid, LPCTSTR sid){
XmlNodeIq iq(_T("set"), SerialNext());
HXML query= iq <<XATTR(_T("to"), from) << XCHILD(_T("captcha")) << XATTR(_T("xmlns"), _T("urn:xmpp:captcha")) << XCHILD (_T("x")) << XATTR(_T("xmlns"), _T(JABBER_FEAT_DATA_FORMS)) << XATTR(_T("type"), _T("submit"));
query << XCHILD(_T("field")) << XATTR (_T("var"), _T("FORM_TYPE")) << XCHILD(_T("value"), _T("urn:xmpp:captcha"));
query << XCHILD(_T("field")) << XATTR (_T("var"), _T("from")) << XCHILD(_T("value"), fromjid);
query << XCHILD(_T("field")) << XATTR (_T("var"), _T("challenge")) << XCHILD(_T("value"), challenge);
query << XCHILD(_T("field")) << XATTR (_T("var"), _T("sid")) << XCHILD(_T("value"), sid);
query << XCHILD(_T("field")) << XATTR (_T("var"), _T("ocr")) << XCHILD(_T("value"), buf);
info -> send (iq);
}
void CJabberProto::sendCaptchaError(ThreadData* info, LPCTSTR from, LPCTSTR to, LPCTSTR challenge) {
XmlNode message(_T("message"));
HXML query= message << XATTR(_T("type"), _T("error")) << XATTR(_T("to"), from) << XATTR(_T("id"), challenge) << XATTR(_T("from"), to)
<< XCHILD(_T("error")) << XATTR(_T("type"), _T("modify"))
<< XCHILD(_T("not-acceptable")) << XATTR(_T("xmlns"), _T("urn:ietf:params:xml:ns:xmpp-stanzas"));
info -> send (message);
}
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