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/*

Miranda NG: the free IM client for Microsoft* Windows*

Copyright (c) 2012-17 Miranda NG project (https://miranda-ng.org),
Copyright (c) 2000-09 Miranda ICQ/IM project,

This file is part of Send Screenshot Plus, a Miranda IM plugin.
Copyright (c) 2010 Ing.U.Horn

Parts of this file based on original sorce code
(c) 2004-2006 Sérgio Vieira Rolanski (portet from Borland C++)

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"

/////////////////////////////////////////////////////////////////////////////////////////

CSendHost_ImageShack::CSendHost_ImageShack(HWND Owner, MCONTACT hContact, bool bAsync)
	: CSend(Owner, hContact, bAsync)
{
	m_EnableItem = SS_DLG_DESCRIPTION | SS_DLG_AUTOSEND | SS_DLG_DELETEAFTERSSEND;
	m_pszSendTyp = LPGENW("Image upload");
}

CSendHost_ImageShack::~CSendHost_ImageShack()
{
}

/////////////////////////////////////////////////////////////////////////////////////////

int CSendHost_ImageShack::Send()
{
	if (!g_hNetlibUser) { /// check Netlib
		Error(SS_ERR_INIT, m_pszSendTyp);
		Exit(ACKRESULT_FAILED);
		return !m_bAsync;
	}
	memset(&m_nlhr, 0, sizeof(m_nlhr));
	char* tmp; tmp = mir_u2a(m_pszFile);
	HTTPFormData frm[] = {
		//{ "Referer", HTTPFORM_HEADER("http://www.imageshack.us/upload_api.php") },
		{ "fileupload", HTTPFORM_FILE(tmp) },
		//{ "rembar", "yes" },// no info bar on thumb
		{ "public", "no" },
		{ "key", HTTPFORM_8BIT(DEVKEY_IMAGESHACK) },
	};
	int error = HTTPFormCreate(&m_nlhr, REQUEST_POST, "http://imageshack.us/upload_api.php", frm, sizeof(frm) / sizeof(HTTPFormData));
	mir_free(tmp);
	if (error)
		return !m_bAsync;
	/// start upload thread
	if (m_bAsync) {
		mir_forkthread(&CSendHost_ImageShack::SendThreadWrapper, this);
		return 0;
	}
	SendThread();
	return 1;
}

void CSendHost_ImageShack::SendThread()
{
	/// send DATA and wait for m_nlreply
	NETLIBHTTPREQUEST* reply = Netlib_HttpTransaction(g_hNetlibUser, &m_nlhr);
	HTTPFormDestroy(&m_nlhr);
	if (reply) {
		if (reply->resultCode >= 200 && reply->resultCode < 300 && reply->dataLength) {
			reply->pData[reply->dataLength - 1] = '\0';/// make sure its null terminated
			const char* url = nullptr;
			url = GetHTMLContent(reply->pData, "<image_link>", "</image_link>");
			if (url && *url) {
				mir_free(m_URL), m_URL = mir_strdup(url);
				mir_free(m_URLthumb), m_URLthumb = mir_strdup(m_URL);
				size_t extlen;
				char* pos = strrchr(m_URLthumb, '.');
				if (pos && (extlen = mir_strlen(pos))>2) {
					char* tmp = mir_strdup(pos);
					memcpy(pos, ".th", 3);
					memcpy(pos + 3, tmp, extlen - 3);
					mir_stradd(m_URLthumb, tmp + extlen - 3);
					mir_free(tmp);
				}
				else mir_freeAndNil(m_URLthumb);

				Netlib_FreeHttpRequest(reply);
				svcSendMsgExit(url); return;
			}
			else {/// check error mess from server
				url = GetHTMLContent(reply->pData, "<error ", "</error>");
				wchar_t* err = nullptr;
				if (url) err = mir_a2u(url);
				if (!err || !*err) {/// fallback to server response mess
					mir_free(err);
					err = mir_a2u(reply->pData);
				}
				Error(L"%s", err);
				mir_free(err);
			}
		}
		else Error(SS_ERR_RESPONSE, m_pszSendTyp, reply->resultCode);

		Netlib_FreeHttpRequest(reply);
	}
	else Error(SS_ERR_NORESPONSE, m_pszSendTyp, m_nlhr.resultCode);

	Exit(ACKRESULT_FAILED);
}

void CSendHost_ImageShack::SendThreadWrapper(void * Obj)
{
	reinterpret_cast<CSendHost_ImageShack*>(Obj)->SendThread();
}