/*
*----------------------------------------------------------------------
*
* OS_Accept --
*
* Accepts a new FastCGI connection. This routine knows whether
* we're dealing with TCP based sockets or NT Named Pipes for IPC.
*
* fail_on_intr is ignored in the Win lib.
*
* Results:
* -1 if the operation fails, otherwise this is a valid IPC fd.
*
*----------------------------------------------------------------------
*/
int OS_Accept(int listen_sock, int fail_on_intr, const char *webServerAddrs)
{
int ipcFd = -1;
// Touch args to prevent warnings
listen_sock = 0; fail_on_intr = 0;
// @todo Muliple listen sockets and sockets other than 0 are not
// supported due to the use of globals.
if (shutdownPending)
{
OS_LibShutdown();
return -1;
}
// The mutex is to keep other processes (and threads, when supported)
// from going into the accept cycle. The accept cycle needs to
// periodically break out to check the state of the shutdown flag
// and there's no point to having more than one thread do that.
if (acceptMutex != INVALID_HANDLE_VALUE)
{
if (WaitForSingleObject(acceptMutex, INFINITE) == WAIT_FAILED)
{
printLastError("WaitForSingleObject() failed");
return -1;
}
}
if (shutdownPending)
{
OS_LibShutdown();
}
else if (listenType == FD_PIPE_SYNC)
{
ipcFd = acceptNamedPipe();
}
else if (listenType == FD_SOCKET_SYNC)
{
ipcFd = acceptSocket(webServerAddrs);
}
else
{
fprintf(stderr, "unknown listenType (%d)\n", listenType);
}
if (acceptMutex != INVALID_HANDLE_VALUE)
{
ReleaseMutex(acceptMutex);
}
return ipcFd;
}
System::~System()
{
OS_LibShutdown(); // Fixes a memory leak in FastCGI
DatabaseSystem::deleteDbmsList();
CodeHighlighter::deleteCodeHighlighters();
Shell::deleteCommands();
Session::deleteSessions();
RequestProfile::deleteProfiles();
if (_site != nullptr)
delete _site;
delete TransManager::get();
delete TemplatesManager::get();
for (Plugin* plugin : _loadedPlugins)
delete plugin;
delete _cliOptions;
}
void api_cleanup( void )
{
/* free the memory used by the FastCGI library */
OS_LibShutdown( );
/* free the pointers to the methods hash table */
if ( methods.initialized == 1 ) {
nbu_log_debug( "freeing methods hash table" );
ewf_hashtable_destroy( &methods.list );
}
/* disconnect from nbd */
nbd_disconnect( );
#ifdef DMALLOC
dmalloc_shutdown( );
#endif
nbu_log_info( "api stopped" );
nbu_log_close( );
}
int main(int argc, char *argv[])
{
argv = cmdline_setup(argc, argv);
if (!argv) {
fprintf(stderr, "Failed to setup cmdline library.\n");
return EXIT_FAILURE;
}
// Initialize timezone before going multi-threaded.
tzset();
// Initialize weak (but fast) PRG rand(3).
randomize();
#if HAVE_OPENSSL_OPENSSLV_H
// Initialize OpenSSL.
OpenSSL_add_all_algorithms();
if (SSL_library_init() != 1) {
fprintf(stderr, "Failed to initialize OpenSSL.\n");
return false;
}
#endif
#if HAVE_CURL_CURL_H_
// Initialize libcurl.
if (curl_global_init(CURL_GLOBAL_ALL)) {
fprintf(stderr, "Failed to initialize libcurl.\n");
return EXIT_FAILURE;
}
#endif
#if HAVE_LIBXML_XMLVERSION_H
// Initialize XML.
if (!flinter::Xml::Initialize()) {
fprintf(stderr, "Failed to initialize libxml2.\n");
return false;
}
#endif
// Initialize FastCGI.
if (FCGX_Init()) {
fprintf(stderr, "Failed to initialize FastCGI.\n");
return false;
}
// Initialize ClearSilver.
// Nothing to do.
int ret = fastcgi_main(argc, argv);
#if HAVE_NERR_SHUTDOWN
// ClearSilver leaks.
NEOERR *err = nerr_shutdown();
if (err != STATUS_OK) {
nerr_ignore(&err);
}
#endif
// FCGX leaks.
OS_LibShutdown();
#if HAVE_LIBXML_XMLVERSION_H
// Shutdown libxml2.
flinter::Xml::Shutdown();
#endif
#if HAVE_CURL_CURL_H
// Shutdown libcurl.
curl_global_cleanup();
#endif
#if HAVE_OPENSSL_OPENSSLV_H
// Shutdown OpenSSL.
#if HAVE_SSL_LIBRARY_CLEANUP
SSL_library_cleanup();
#endif
EVP_cleanup();
CRYPTO_cleanup_all_ex_data();
ERR_remove_thread_state(NULL);
#endif
google::protobuf::ShutdownProtobufLibrary();
return ret;
}
static int acceptSocket(const char *webServerAddrs)
{
SOCKET hSock;
int ipcFd = -1;
for (;;)
{
struct sockaddr sockaddr;
int sockaddrLen = sizeof(sockaddr);
for (;;)
{
const struct timeval timeout = {1, 0};
fd_set readfds;
FD_ZERO(&readfds);
#pragma warning( disable : 4127 )
FD_SET((unsigned int) hListen, &readfds);
#pragma warning( default : 4127 )
if (select(0, &readfds, NULL, NULL, &timeout) == 0)
{
if (shutdownPending)
{
OS_LibShutdown();
return -1;
}
}
else
{
break;
}
}
#if NO_WSAACEPT
hSock = accept((SOCKET) hListen, &sockaddr, &sockaddrLen);
if (hSock == INVALID_SOCKET)
{
break;
}
if (isAddrOK((struct sockaddr_in *) &sockaddr, webServerAddrs))
{
break;
}
closesocket(hSock);
#else
hSock = WSAAccept((unsigned int) hListen,
&sockaddr,
&sockaddrLen,
isAddrOKCallback,
(DWORD) webServerAddrs);
if (hSock != INVALID_SOCKET)
{
break;
}
if (WSAGetLastError() != WSAECONNREFUSED)
{
break;
}
#endif
}
if (hSock == INVALID_SOCKET)
{
/* Use FormatMessage() */
fprintf(stderr, "accept()/WSAAccept() failed: %d", WSAGetLastError());
return -1;
}
ipcFd = Win32NewDescriptor(FD_SOCKET_SYNC, hSock, -1);
if (ipcFd == -1)
{
closesocket(hSock);
}
return ipcFd;
}
int main(int argc, char *argv[])
{
ows *o;
char *query;
o = ows_init();
o->config_file = buffer_init();
/* Config Files */
if (getenv("TINYOWS_CONFIG_FILE"))
buffer_add_str(o->config_file, getenv("TINYOWS_CONFIG_FILE"));
else if (getenv("TINYOWS_MAPFILE")) {
buffer_add_str(o->config_file, getenv("TINYOWS_MAPFILE"));
o->mapfile = true;
} else
buffer_add_str(o->config_file, OWS_CONFIG_FILE_PATH);
LIBXML_TEST_VERSION
xmlInitParser();
/* Parse the configuration file and initialize ows struct */
if (!o->exit) ows_parse_config(o, o->config_file->buf);
if (!o->exit) ows_log(o, 2, "== TINYOWS STARTUP ==");
/* Connect the ows to the database */
if (!o->exit) ows_pg(o, o->pg_dsn->buf);
if (!o->exit) ows_log(o, 2, "== Connection PostGIS ==");
/* Fill layers storage metadata */
if (!o->exit) ows_layers_storage_fill(o);
if (!o->exit) ows_log(o, 2, "== Filling Storage ==");
o->init = false;
#if TINYOWS_FCGI
if (!o->exit) ows_log(o, 2, "== FCGI START ==");
while (FCGI_Accept() >= 0) {
#endif
query=NULL;
if (!o->exit) query = cgi_getback_query(o); /* Retrieve safely query string */
if (!o->exit) ows_log(o, 4, query); /* Log input query if asked */
if (!o->exit && (!query || !strlen(query))) {
/* Usage or Version command line options */
if (argc > 1) {
if ( !strncmp(argv[1], "--help", 6)
|| !strncmp(argv[1], "-h", 2)
|| !strncmp(argv[1], "--check", 7)) ows_usage(o);
else if ( !strncmp(argv[1], "--version", 9)
|| !strncmp(argv[1], "-v", 2))
fprintf(stdout, "%s\n", TINYOWS_VERSION);
else ows_error(o, OWS_ERROR_INVALID_PARAMETER_VALUE, "Service Unknown", "service");
} else ows_error(o, OWS_ERROR_INVALID_PARAMETER_VALUE, "Service Unknown", "service");
o->exit=true; /* Have done what we have to */
}
if (!o->exit) o->request = ows_request_init();
if (!o->exit) ows_kvp_or_xml(o, query); /* Method is KVP or XML ? */
if (!o->exit) {
switch (o->request->method) {
case OWS_METHOD_KVP:
o->cgi = cgi_parse_kvp(o, query);
break;
case OWS_METHOD_XML:
o->cgi = cgi_parse_xml(o, query);
break;
default:
ows_error(o, OWS_ERROR_REQUEST_HTTP, "Wrong HTTP request Method", "http");
}
}
if (!o->exit) o->psql_requests = list_init();
if (!o->exit) ows_metadata_fill(o, o->cgi); /* Fill service's metadata */
if (!o->exit) ows_request_check(o, o->request, o->cgi, query); /* Process service request */
/* Run the right OWS service */
if (!o->exit) {
switch (o->request->service) {
case WFS:
o->request->request.wfs = wfs_request_init();
wfs_request_check(o, o->request->request.wfs, o->cgi);
if (!o->exit) wfs(o, o->request->request.wfs);
break;
default:
ows_error(o, OWS_ERROR_INVALID_PARAMETER_VALUE, "Service Unknown", "service");
}
}
if (o->request) {
ows_request_free(o->request);
o->request=NULL;
}
/* We allocated memory only on post case */
if (cgi_method_post() && query) free(query);
#if TINYOWS_FCGI
fflush(stdout);
o->exit = false;
}
ows_log(o, 2, "== FCGI SHUTDOWN ==");
OS_LibShutdown();
#endif
ows_log(o, 2, "== TINYOWS SHUTDOWN ==");
ows_free(o);
xmlCleanupParser();
return EXIT_SUCCESS;
}
