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/*
Miranda SmileyAdd Plugin
Copyright (C) 2007 - 2011 Boris Krasnovskiy
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 version 2
of the License.
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, see <http://www.gnu.org/licenses/>.
*/
#include "stdafx.h"
HNETLIBUSER hNetlibUser;
static HANDLE hFolder;
struct QueueElem
{
CMStringW url;
CMStringW fname;
bool needext;
QueueElem(CMStringW &purl, CMStringW &pfname, bool ne)
: url(purl), fname(pfname), needext(ne)
{
}
};
static HANDLE g_hDlMutex;
static OBJLIST<QueueElem> dlQueue(10);
static wchar_t cachepath[MAX_PATH];
static bool threadRunning;
bool InternetDownloadFile(const char *szUrl, char *szDest, HNETLIBCONN &hHttpDwnl)
{
int result = 0xBADBAD;
char *szRedirUrl = nullptr;
NETLIBHTTPREQUEST nlhr = { 0 };
// initialize the netlib request
nlhr.cbSize = sizeof(nlhr);
nlhr.requestType = REQUEST_GET;
nlhr.flags = NLHRF_NODUMP | NLHRF_HTTP11 | NLHRF_PERSISTENT | NLHRF_REDIRECT;
nlhr.szUrl = (char*)szUrl;
nlhr.nlc = hHttpDwnl;
// change the header so the plugin is pretended to be IE 6 + WinXP
nlhr.headersCount = 2;
nlhr.headers = (NETLIBHTTPHEADER*)alloca(sizeof(NETLIBHTTPHEADER)*nlhr.headersCount);
nlhr.headers[0].szName = "User-Agent";
nlhr.headers[0].szValue = NETLIB_USER_AGENT;
nlhr.headers[1].szName = "Connection";
nlhr.headers[1].szValue = "close";
while (result == 0xBADBAD) {
// download the page
NETLIBHTTPREQUEST *nlhrReply = Netlib_HttpTransaction(hNetlibUser, &nlhr);
if (nlhrReply) {
hHttpDwnl = nlhrReply->nlc;
// if the recieved code is 200 OK
if (nlhrReply->resultCode == 200) {
char *delim = strrchr(szDest, '\\');
if (delim) *delim = '\0';
CreateDirectoryTree(szDest);
if (delim) *delim = '\\';
int res = -1;
int fh = _open(szDest, _O_BINARY | _O_WRONLY | _O_CREAT, _S_IREAD | _S_IWRITE);
if (fh != -1) {
res = _write(fh, nlhrReply->pData, nlhrReply->dataLength);
_close(fh);
}
if (res < 0)
remove(szDest);
else
result = 0;
}
// if the recieved code is 302 Moved, Found, etc
// workaround for url forwarding
else if (nlhrReply->resultCode == 302 || nlhrReply->resultCode == 301 || nlhrReply->resultCode == 307) { // page moved
// get the url for the new location and save it to szInfo
// look for the reply header "Location"
for (int i = 0; i < nlhrReply->headersCount; i++) {
if (!mir_strcmp(nlhrReply->headers[i].szName, "Location")) {
size_t rlen = 0;
if (nlhrReply->headers[i].szValue[0] == '/') {
const char *szPref = strstr(szUrl, "://");
szPref = szPref ? szPref + 3 : szUrl;
const char *szPath = strchr(szPref, '/');
rlen = szPath != nullptr ? szPath - szUrl : mir_strlen(szUrl);
}
szRedirUrl = (char*)mir_realloc(szRedirUrl, rlen + mir_strlen(nlhrReply->headers[i].szValue) * 3 + 1);
strncpy(szRedirUrl, szUrl, rlen);
mir_strcpy(szRedirUrl + rlen, nlhrReply->headers[i].szValue);
nlhr.szUrl = szRedirUrl;
break;
}
}
}
else result = 1;
}
else {
hHttpDwnl = nullptr;
result = 1;
}
Netlib_FreeHttpRequest(nlhrReply);
}
mir_free(szRedirUrl);
return result == 0;
}
void __cdecl SmileyDownloadThread(void*)
{
Thread_SetName("SmileyAdd: SmileyDownloadThread");
bool needext = false;
HNETLIBCONN hHttpDwnl = nullptr;
WaitForSingleObject(g_hDlMutex, 3000);
while (!Miranda_IsTerminated() && dlQueue.getCount()) {
ReleaseMutex(g_hDlMutex);
if (_waccess(dlQueue[0].fname.c_str(), 0) != 0) {
InternetDownloadFile(_T2A(dlQueue[0].url.c_str()), _T2A(dlQueue[0].fname.c_str()), hHttpDwnl);
WaitForSingleObject(g_hDlMutex, 3000);
CMStringW fname(dlQueue[0].fname);
if (dlQueue[0].needext) {
fname += GetImageExt(fname);
needext = true;
}
_wrename(dlQueue[0].fname.c_str(), fname.c_str());
}
else WaitForSingleObject(g_hDlMutex, 3000);
dlQueue.remove(0);
}
dlQueue.destroy();
if (hHttpDwnl) Netlib_CloseHandle(hHttpDwnl);
threadRunning = false;
ReleaseMutex(g_hDlMutex);
if (!Miranda_IsTerminated()) {
if (needext)
CallServiceSync(MS_SMILEYADD_RELOAD, 0, 0);
else
NotifyEventHooks(hEvent1, 0, 0);
}
}
bool GetSmileyFile(CMStringW &url, const CMStringW &packstr)
{
MRegexp16 urlsplit(L".*/(.*)");
urlsplit.match(url);
CMStringW filename;
filename.AppendFormat(L"%s\\%s\\", cachepath, packstr.c_str());
int pathpos = filename.GetLength();
filename += urlsplit.getGroup(1);
bool needext = filename.Find('.') == -1;
if (needext)
filename += L".*";
_wfinddata_t c_file;
INT_PTR hFile = _wfindfirst((wchar_t*)filename.c_str(), &c_file);
if (hFile > -1) {
_findclose(hFile);
filename.Truncate(pathpos);
filename += c_file.name;
url = filename;
return false;
}
if (needext)
filename.Truncate(filename.GetLength() - 1);
WaitForSingleObject(g_hDlMutex, 3000);
dlQueue.insert(new QueueElem(url, filename, needext));
ReleaseMutex(g_hDlMutex);
if (!threadRunning) {
threadRunning = true;
mir_forkthread(SmileyDownloadThread);
}
url = filename;
return false;
}
int FolderChanged(WPARAM, LPARAM)
{
FoldersGetCustomPathT(hFolder, cachepath, MAX_PATH, L"");
return 0;
}
void GetSmileyCacheFolder(void)
{
hFolder = FoldersRegisterCustomPathT(LPGEN("SmileyAdd"), LPGEN("Smiley cache"), MIRANDA_USERDATAT L"\\SmileyCache");
if (hFolder) {
FoldersGetCustomPathT(hFolder, cachepath, MAX_PATH, L"");
HookEvent(ME_FOLDERS_PATH_CHANGED, FolderChanged);
}
else mir_wstrncpy(cachepath, VARSW(L"%miranda_userdata%\\SmileyCache"), MAX_PATH);
}
void DownloadInit(void)
{
NETLIBUSER nlu = {};
nlu.flags = NUF_OUTGOING | NUF_HTTPCONNS | NUF_NOHTTPSOPTION | NUF_UNICODE;
nlu.szSettingsModule = MODULENAME;
nlu.szDescriptiveName.w = TranslateT("SmileyAdd HTTP connections");
hNetlibUser = Netlib_RegisterUser(&nlu);
GetSmileyCacheFolder();
g_hDlMutex = CreateMutex(nullptr, FALSE, nullptr);
}
void DownloadClose(void)
{
CloseHandle(g_hDlMutex);
Netlib_CloseHandle(hNetlibUser);
}
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