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/* HexChat
* Copyright (c) 2010-2012 Berke Viktor.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <windows.h>
#include <wininet.h>
#include "xchat-plugin.h"
static xchat_plugin *ph; /* plugin handle */
static const char name[] = "Update Checker";
static const char desc[] = "Check for HexChat updates automatically";
static const char version[] = "3.0";
static char*
check_version ()
{
#if 0
HINTERNET hINet, hFile;
hINet = InternetOpen ("Update Checker", INTERNET_OPEN_TYPE_PRECONFIG, NULL, NULL, 0);
if (!hINet)
{
return "Unknown";
}
hFile = InternetOpenUrl (hINet,
"https://raw.github.com/hexchat/hexchat/master/version.txt",
NULL,
0,
INTERNET_FLAG_NO_CACHE_WRITE | INTERNET_FLAG_RELOAD,
0);
if (hFile)
{
static char buffer[1024];
DWORD dwRead;
while (InternetReadFile (hFile, buffer, 1023, &dwRead))
{
if (dwRead == 0)
{
break;
}
buffer[dwRead] = 0;
}
InternetCloseHandle (hFile);
InternetCloseHandle (hINet);
return buffer;
}
InternetCloseHandle (hINet);
return "Unknown";
#endif
/* Google Code's messing up with requests, use HTTP/1.0 as suggested. More info:
http://code.google.com/p/support/issues/detail?id=6095
Of course it would be still too simple, coz IE will override settings, so
you have to disable HTTP/1.1 manually and globally. More info:
http://support.microsoft.com/kb/258425
So this code's basically useless since disabling HTTP/1.1 will work with the
above code too.
Update: a Connection: close header seems to disable chunked encoding.
*/
HINTERNET hOpen, hConnect, hResource;
hOpen = InternetOpen (TEXT ("Update Checker"),
INTERNET_OPEN_TYPE_PRECONFIG,
NULL,
NULL,
0);
if (!hOpen)
{
return "Unknown";
}
hConnect = InternetConnect (hOpen,
TEXT ("raw.github.com"),
INTERNET_DEFAULT_HTTPS_PORT,
NULL,
NULL,
INTERNET_SERVICE_HTTP,
0,
0);
if (!hConnect)
{
InternetCloseHandle (hOpen);
return "Unknown";
}
hResource = HttpOpenRequest (hConnect,
TEXT ("GET"),
TEXT ("/hexchat/hexchat/master/version.txt"),
TEXT ("HTTP/1.0"),
NULL,
NULL,
INTERNET_FLAG_SECURE | INTERNET_FLAG_NO_CACHE_WRITE | INTERNET_FLAG_RELOAD | INTERNET_FLAG_NO_AUTH,
0);
if (!hResource)
{
InternetCloseHandle (hConnect);
InternetCloseHandle (hOpen);
return "Unknown";
}
else
{
static char buffer[1024];
DWORD dwRead;
HttpAddRequestHeaders (hResource, TEXT ("Connection: close\r\n"), -1L, HTTP_ADDREQ_FLAG_ADD); /* workaround for GC bug */
HttpSendRequest (hResource, NULL, 0, NULL, 0);
while (InternetReadFile (hResource, buffer, 1023, &dwRead))
{
if (dwRead == 0)
{
break;
}
buffer[dwRead] = 0;
}
InternetCloseHandle (hResource);
InternetCloseHandle (hConnect);
InternetCloseHandle (hOpen);
return buffer;
}
}
static int
print_version ()
{
char *version = check_version ();
if (strcmp (version, xchat_get_info (ph, "version")) == 0)
{
xchat_printf (ph, "You have the latest version of HexChat installed!\n");
}
else if (strcmp (version, "Unknown") == 0)
{
xchat_printf (ph, "Unable to check for HexChat updates!\n");
}
else
{
#ifdef _WIN64 /* use this approach, the wProcessorArchitecture method always returns 0 (=x86) for some reason */
xchat_printf (ph, "A HexChat update is available! You can download it from here:\nhttps://github.com/downloads/hexchat/hexchat/HexChat%%20%s%%20x64.exe\n", version);
#else
xchat_printf (ph, "A HexChat update is available! You can download it from here:\nhttps://github.com/downloads/hexchat/hexchat/HexChat%%20%s%%20x86.exe\n", version);
#endif
}
return XCHAT_EAT_XCHAT;
}
static int
print_version_quiet (void *userdata)
{
char *version = check_version ();
/* if it's not the current version AND not network error */
if (!(strcmp (version, xchat_get_info (ph, "version")) == 0) && !(strcmp (version, "Unknown") == 0))
{
#ifdef _WIN64 /* use this approach, the wProcessorArchitecture method always returns 0 (=x86) for plugins for some reason */
xchat_printf (ph, "A HexChat update is available! You can download it from here:\nhttps://github.com/downloads/hexchat/hexchat/HexChat%%20%s%%20x64.exe\n", version);
#else
xchat_printf (ph, "A HexChat update is available! You can download it from here:\nhttps://github.com/downloads/hexchat/hexchat/HexChat%%20%s%%20x86.exe\n", version);
#endif
/* print update url once, then stop the timer */
return 0;
}
/* keep checking */
return 1;
}
int
xchat_plugin_init (xchat_plugin *plugin_handle, char **plugin_name, char **plugin_desc, char **plugin_version, char *arg)
{
ph = plugin_handle;
*plugin_name = name;
*plugin_desc = desc;
*plugin_version = version;
xchat_hook_command (ph, "UPDCHK", XCHAT_PRI_NORM, print_version, 0, 0);
xchat_command (ph, "MENU -ietc\\download.png ADD \"Help/Check for Updates\" \"UPDCHK\"");
xchat_printf (ph, "%s plugin loaded\n", name);
/* only start the timer if there's no update available during startup */
if (print_version_quiet (NULL))
{
/* check for updates every 6 hours */
xchat_hook_timer (ph, 21600000, print_version_quiet, NULL);
}
return 1; /* return 1 for success */
}
int
xchat_plugin_deinit (void)
{
xchat_command (ph, "MENU DEL \"Help/Check for updates\"");
xchat_printf (ph, "%s plugin unloaded\n", name);
return 1;
}
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