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/*
Jabber Protocol Plugin for Miranda NG
Copyright (c) 2002-04 Santithorn Bunchua
Copyright (c) 2005-12 George Hazan
Copyright (c) 2007 Maxim Mluhov
Copyright (C) 2012-24 Miranda NG team
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 "stdafx.h"
struct CAPTCHA_FORM_PARAMS
{
const char *from;
const char *challenge;
const char *fromjid;
const char *sid;
const char *to;
const char *hint;
HBITMAP bmp;
int w,h;
wchar_t 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);
Window_SetIcon_IcoLib(hwndDlg, Skin_GetIconHandle(SKINICON_OTHER_KEYS));
params = (CAPTCHA_FORM_PARAMS*)lParam;
const char *hint = params->hint;
if (hint == nullptr)
SetDlgItemTextW(hwndDlg, IDC_INSTRUCTION, TranslateT("Enter the text you see"));
else
SetDlgItemTextW(hwndDlg, IDC_INSTRUCTION, TranslateW(Utf2T(hint)));
SetWindowLongPtr(hwndDlg, GWLP_USERDATA, (LONG_PTR)params);
return TRUE;
}
case WM_CTLCOLORSTATIC:
switch(GetWindowLongPtr((HWND)lParam, GWL_ID)) {
case IDC_WHITERECT:
case IDC_INSTRUCTION:
case IDC_TITLE:
return (INT_PTR)GetStockObject(WHITE_BRUSH);
}
return 0;
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 IDOK:
GetDlgItemText(hwndDlg, IDC_VALUE, params->Result, _countof(params->Result));
EndDialog(hwndDlg, 1);
return TRUE;
}
break;
case WM_CLOSE:
EndDialog(hwndDlg, 0);
break;
case WM_DESTROY:
Window_FreeIcon_IcoLib(hwndDlg);
break;
}
return FALSE;
}
bool CJabberProto::ProcessCaptcha(const TiXmlElement *node, const TiXmlElement *parentNode, ThreadData *info)
{
auto *x = XmlGetChildByTag(node, "x", "xmlns", JABBER_FEAT_DATA_FORMS);
if (x == nullptr)
return false;
auto *y = XmlGetChildByTag(x, "field", "var", "from");
if (y == nullptr)
return false;
if ((y = XmlFirstChild(y, "value")) == nullptr)
return false;
CAPTCHA_FORM_PARAMS param;
param.fromjid = y->GetText();
if ((y = XmlGetChildByTag(x, "field", "var", "sid")) == nullptr)
return false;
if ((y = XmlFirstChild(y, "value")) == nullptr)
return false;
param.sid = y->GetText();
if ((y = XmlGetChildByTag(x, "field", "var", "ocr")) == nullptr)
return false;
param.hint = XmlGetAttr(y, "label");
param.from = XmlGetAttr(parentNode, "from");
param.to = XmlGetAttr(parentNode, "to");
param.challenge = XmlGetAttr(parentNode, "id");
auto *o = XmlFirstChild(parentNode, "data");
if (o == nullptr || o->GetText() == nullptr)
return false;
size_t bufferLen;
ptrA buffer((char*)mir_base64_decode(o->GetText(), &bufferLen));
if (buffer == nullptr)
return false;
param.bmp = Image_LoadFromMem(buffer, bufferLen, FIF_UNKNOWN);
BITMAP bmp = {0};
GetObject(param.bmp, sizeof(bmp), &bmp);
param.w = bmp.bmWidth;
param.h = bmp.bmHeight;
int res = DialogBoxParam(g_plugin.getInst(), MAKEINTRESOURCE(IDD_CAPTCHAFORM), nullptr, JabberCaptchaFormDlgProc, (LPARAM)¶m);
if (mir_wstrcmp(param.Result, L"") == 0 || !res)
sendCaptchaError(info, param.from, param.to, param.challenge);
else
sendCaptchaResult(T2Utf(param.Result), info, param.from, param.challenge, param.fromjid, param.sid);
return true;
}
void CJabberProto::sendCaptchaResult(char* buf, ThreadData *info, const char *from, const char *challenge, const char *fromjid, const char *sid)
{
XmlNodeIq iq("set", SerialNext());
TiXmlElement *query= iq << XATTR("to", from) << XCHILDNS("captcha", "urn:xmpp:captcha") << XCHILDNS("x", JABBER_FEAT_DATA_FORMS) << XATTR("type", "submit");
query << XCHILD("field") << XATTR ("var", "FORM_TYPE") << XCHILD("value", "urn:xmpp:captcha");
query << XCHILD("field") << XATTR ("var", "from") << XCHILD("value", fromjid);
query << XCHILD("field") << XATTR ("var", "challenge") << XCHILD("value", challenge);
query << XCHILD("field") << XATTR ("var", "sid") << XCHILD("value", sid);
query << XCHILD("field") << XATTR ("var", "ocr") << XCHILD("value", buf);
info -> send (iq);
}
void CJabberProto::sendCaptchaError(ThreadData *info, const char *from, const char *to, const char *challenge)
{
XmlNode message("message");
message << XATTR("type", "error") << XATTR("to", from) << XATTR("id", challenge) << XATTR("from", to)
<< XCHILD("error") << XATTR("type", "modify")
<< XCHILDNS("not-acceptable", "urn:ietf:params:xml:ns:xmpp-stanzas");
info->send(message);
}
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