vboxweb.cpp@ 17581

Last change on this file since 17581 was 17097, checked in by vboxsync, 16 years ago
Webservice: adjust to new RTGetOpt
Property filesplitter.c set to `Makefile.kmk` Property svn:eol-style set to `native`
File size: 41.4 KB

Line
1	/**
2	* vboxweb.cpp:
3	* hand-coded parts of the webservice server. This is linked with the
4	* generated code in out/.../src/VBox/Main/webservice/methodmaps.cpp
5	* (and static gSOAP server code) to implement the actual webservice
6	* server, to which clients can connect.
7	*
8	* Copyright (C) 2006-2007 Sun Microsystems, Inc.
9	*
10	* This file is part of VirtualBox Open Source Edition (OSE), as
11	* available from http://www.virtualbox.org. This file is free software;
12	* you can redistribute it and/or modify it under the terms of the GNU
13	* General Public License (GPL) as published by the Free Software
14	* Foundation, in version 2 as it comes in the "COPYING" file of the
15	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
16	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
17	*
18	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
19	* Clara, CA 95054 USA or visit http://www.sun.com if you need
20	* additional information or have any questions.
21	*/
22
23	// vbox headers
24	#include <VBox/com/com.h>
25	#include <VBox/com/string.h>
26	#include <VBox/com/Guid.h>
27	#include <VBox/com/ErrorInfo.h>
28	#include <VBox/com/errorprint2.h>
29	#include <VBox/com/EventQueue.h>
30	#include <VBox/com/VirtualBox.h>
31	#include <VBox/err.h>
32	#include <VBox/VRDPAuth.h>
33	#include <VBox/version.h>
34	#include <VBox/log.h>
35
36	#include <iprt/lock.h>
37	#include <iprt/rand.h>
38	#include <iprt/initterm.h>
39	#include <iprt/getopt.h>
40	#include <iprt/process.h>
41	#include <iprt/stream.h>
42	#include <iprt/string.h>
43	#include <iprt/ldr.h>
44
45	// workaround for compile problems on gcc 4.1
46	#pragma GCC visibility push(default)
47
48	// gSOAP headers (must come after vbox includes because it checks for conflicting defs)
49	#include "soapH.h"
50
51	// standard headers
52	#include <map>
53	#include <sstream>
54
55	#pragma GCC visibility pop
56
57	// shared webservice header
58	#include "vboxweb.h"
59
60	// include generated namespaces table
61	#include "vboxwebsrv.nsmap"
62
63	/****************************************************************************
64	*
65	* private typedefs
66	*
67	****************************************************************************/
68
69	typedef std::map<uint64_t, ManagedObjectRef*>
70	ManagedObjectsMapById;
71	typedef std::map<uint64_t, ManagedObjectRef*>::iterator
72	ManagedObjectsIteratorById;
73	typedef std::map<uintptr_t, ManagedObjectRef*>
74	ManagedObjectsMapByPtr;
75
76	typedef std::map<uint64_t, WebServiceSession*>
77	SessionsMap;
78	typedef std::map<uint64_t, WebServiceSession*>::iterator
79	SessionsMapIterator;
80
81	int fntWatchdog(RTTHREAD ThreadSelf, void *pvUser);
82
83	/****************************************************************************
84	*
85	* Read-only global variables
86	*
87	****************************************************************************/
88
89	ComPtr<IVirtualBox> g_pVirtualBox = NULL;
90
91	// generated strings in methodmaps.cpp
92	extern const char *g_pcszISession,
93	*g_pcszIVirtualBox;
94
95	#define DEFAULT_TIMEOUT_SECS 300
96	#define DEFAULT_TIMEOUT_SECS_STRING "300"
97
98	int g_iWatchdogTimeoutSecs = DEFAULT_TIMEOUT_SECS;
99	int g_iWatchdogCheckInterval = 5;
100
101	const char *g_pcszBindToHost = NULL; // host; NULL = current machine
102	unsigned int g_uBindToPort = 18083; // port
103	unsigned int g_uBacklog = 100; // backlog = max queue size for requests
104
105	bool g_fVerbose = false; // be verbose
106	PRTSTREAM g_pstrLog = NULL;
107
108	#if defined(RT_OS_DARWIN) \|\| defined(RT_OS_LINUX) \|\| defined (RT_OS_SOLARIS) \|\| defined(RT_OS_FREEBSD)
109	bool g_fDaemonize = false; // run in background.
110	#endif
111
112	/****************************************************************************
113	*
114	* Writeable global variables
115	*
116	****************************************************************************/
117
118	RTLockMtx g_mutexAuthLib;
119
120	// this mutex protects all of the below
121	RTLockMtx g_mutexSessions;
122
123	SessionsMap g_mapSessions;
124	ULONG64 g_iMaxManagedObjectID = 0;
125	ULONG64 g_cManagedObjects = 0;
126
127	/****************************************************************************
128	*
129	* main
130	*
131	****************************************************************************/
132
133	static const RTGETOPTDEF g_aOptions[]
134	= {
135	{ "--help", 'h', RTGETOPT_REQ_NOTHING },
136	#if defined(RT_OS_DARWIN) \|\| defined(RT_OS_LINUX) \|\| defined (RT_OS_SOLARIS) \|\| defined(RT_OS_FREEBSD)
137	{ "--background", 'b', RTGETOPT_REQ_NOTHING },
138	#endif
139	{ "--host", 'H', RTGETOPT_REQ_STRING },
140	{ "--port", 'p', RTGETOPT_REQ_UINT32 },
141	{ "--timeout", 't', RTGETOPT_REQ_UINT32 },
142	{ "--check-interval", 'i', RTGETOPT_REQ_UINT32 },
143	{ "--verbose", 'v', RTGETOPT_REQ_NOTHING },
144	{ "--logfile", 'F', RTGETOPT_REQ_STRING },
145	};
146
147	void DisplayHelp()
148	{
149	RTStrmPrintf(g_pStdErr, "\nUsage: vboxwebsrv [options]\n\nSupported options (default values in brackets):\n");
150	for (unsigned i = 0;
151	i < RT_ELEMENTS(g_aOptions);
152	++i)
153	{
154	std::string str(g_aOptions[i].pszLong);
155	str += ", -";
156	str += g_aOptions[i].iShort;
157	str += ":";
158
159	const char *pcszDescr = "";
160
161	switch (g_aOptions[i].iShort)
162	{
163	case 'h':
164	pcszDescr = "Print this help message and exit.";
165	break;
166
167	#if defined(RT_OS_DARWIN) \|\| defined(RT_OS_LINUX) \|\| defined (RT_OS_SOLARIS) \|\| defined(RT_OS_FREEBSD)
168	case 'b':
169	pcszDescr = "Run in background (daemon mode).";
170	break;
171	#endif
172
173	case 'H':
174	pcszDescr = "The host to bind to (localhost).";
175	break;
176
177	case 'p':
178	pcszDescr = "The port to bind to (18083).";
179	break;
180
181	case 't':
182	pcszDescr = "Session timeout in seconds; 0 = disable timeouts (" DEFAULT_TIMEOUT_SECS_STRING ").";
183	break;
184
185	case 'i':
186	pcszDescr = "Frequency of timeout checks in seconds (5).";
187	break;
188
189	case 'v':
190	pcszDescr = "Be verbose.";
191	break;
192
193	case 'F':
194	pcszDescr = "Name of file to write log to (no file).";
195	break;
196	}
197
198	RTStrmPrintf(g_pStdErr, "%-23s%s\n", str.c_str(), pcszDescr);
199	}
200	}
201
202	void WebLog(const char *pszFormat, ...)
203	{
204	va_list args;
205	va_start(args, pszFormat);
206	RTPrintfV(pszFormat, args);
207	va_end(args);
208
209	if (g_pstrLog)
210	{
211	va_list args2;
212	va_start(args2, pszFormat);
213	RTStrmPrintfV(g_pstrLog, pszFormat, args);
214	va_end(args2);
215
216	RTStrmFlush(g_pstrLog);
217	}
218	}
219
220	void WebLogSoapError(struct soap *soap)
221	{
222	if (soap_check_state(soap))
223	{
224	WebLog("Error: soap struct not initialized\n");
225	return;
226	}
227
228	const char pcszFaultString = soap_faultstring(soap);
229	const char **ppcszDetail = soap_faultcode(soap);
230	WebLog("#### SOAP FAULT: %s [%s]\n",
231	pcszFaultString ? pcszFaultString : "[no fault string available]",
232	(ppcszDetail && ppcszDetail) ? ppcszDetail : "no details available");
233	}
234
235
236	/**
237	* Start up the webservice server. This keeps running and waits
238	* for incoming SOAP connections.
239	*
240	* @param argc
241	* @param argv[]
242	* @return
243	*/
244	int main(int argc, char* argv[])
245	{
246	int rc;
247
248	// intialize runtime
249	RTR3Init();
250
251	RTStrmPrintf(g_pStdErr, "Sun xVM VirtualBox Webservice Version %s\n"
252	"(C) 2005-2009 Sun Microsystems, Inc.\n"
253	"All rights reserved.\n", VBOX_VERSION_STRING);
254
255	int c;
256	RTGETOPTUNION ValueUnion;
257	RTGETOPTSTATE GetState;
258	RTGetOptInit(&GetState, argc, argv, g_aOptions, RT_ELEMENTS(g_aOptions), 1, 0 /* fFlags */);
259	while ((c = RTGetOpt(&GetState, &ValueUnion)))
260	{
261	switch (c)
262	{
263	case 'H':
264	g_pcszBindToHost = ValueUnion.psz;
265	break;
266
267	case 'p':
268	g_uBindToPort = ValueUnion.u32;
269	break;
270
271	case 't':
272	g_iWatchdogTimeoutSecs = ValueUnion.u32;
273	break;
274
275	case 'i':
276	g_iWatchdogCheckInterval = ValueUnion.u32;
277	break;
278
279	case 'F':
280	{
281	int rc2 = RTStrmOpen(ValueUnion.psz, "a", &g_pstrLog);
282	if (rc2)
283	{
284	RTPrintf("Error: Cannot open log file \"%s\" for writing, error %d.\n", ValueUnion.psz, rc2);
285	exit(2);
286	}
287
288	WebLog("Sun xVM VirtualBox Webservice Version %s\n"
289	"Opened log file \"%s\"\n", VBOX_VERSION_STRING, ValueUnion.psz);
290	}
291	break;
292
293	case 'h':
294	DisplayHelp();
295	exit(0);
296	break;
297
298	case 'v':
299	g_fVerbose = true;
300	break;
301
302	#if defined(RT_OS_DARWIN) \|\| defined(RT_OS_LINUX) \|\| defined (RT_OS_SOLARIS) \|\| defined(RT_OS_FREEBSD)
303	case 'b':
304	g_fDaemonize = true;
305	break;
306	#endif
307	case VINF_GETOPT_NOT_OPTION:
308	RTStrmPrintf(g_pStdErr, "Unknown option %s\n", ValueUnion.psz);
309	return 1;
310
311	default:
312	if (c > 0)
313	RTStrmPrintf(g_pStdErr, "missing case: %c\n", c);
314	else if (ValueUnion.pDef)
315	RTStrmPrintf(g_pStdErr, "%s: %Rrs", ValueUnion.pDef->pszLong, c);
316	else
317	RTStrmPrintf(g_pStdErr, "%Rrs", c);
318	exit(1);
319	break;
320	}
321	}
322
323	#if defined(RT_OS_DARWIN) \|\| defined(RT_OS_LINUX) \|\| defined (RT_OS_SOLARIS) \|\| defined(RT_OS_FREEBSD)
324	if (g_fDaemonize)
325	{
326	rc = RTProcDaemonize(false /* fNoChDir /, false / fNoClose */,
327	NULL);
328	if (RT_FAILURE(rc))
329	{
330	RTStrmPrintf(g_pStdErr, "vboxwebsrv: failed to daemonize, rc=%Rrc. exiting.\n", rc);
331	exit(1);
332	}
333	}
334	#endif
335
336	// intialize COM/XPCOM
337	rc = com::Initialize();
338	if (FAILED(rc))
339	{
340	RTPrintf("ERROR: failed to initialize COM!\n");
341	return rc;
342	}
343
344	ComPtr<ISession> session;
345
346	rc = g_pVirtualBox.createLocalObject(CLSID_VirtualBox);
347	if (FAILED(rc))
348	RTPrintf("ERROR: failed to create the VirtualBox object!\n");
349	else
350	{
351	rc = session.createInprocObject(CLSID_Session);
352	if (FAILED(rc))
353	RTPrintf("ERROR: failed to create a session object!\n");
354	}
355
356	if (FAILED(rc))
357	{
358	com::ErrorInfo info;
359	if (!info.isFullAvailable() && !info.isBasicAvailable())
360	{
361	com::GluePrintRCMessage(rc);
362	RTPrintf("Most likely, the VirtualBox COM server is not running or failed to start.\n");
363	}
364	else
365	com::GluePrintErrorInfo(info);
366	return rc;
367	}
368
369	if (g_iWatchdogTimeoutSecs > 0)
370	{
371	// start our watchdog thread
372	RTTHREAD tWatchdog;
373	if (RTThreadCreate(&tWatchdog,
374	fntWatchdog,
375	NULL,
376	32*1024,
377	RTTHREADTYPE_MAIN_WORKER,
378	0,
379	"Watchdog"))
380	{
381	RTStrmPrintf(g_pStdErr, "[!] Cannot start watchdog thread\n");
382	exit(1);
383	}
384	}
385
386	// set up gSOAP
387	struct soap soap;
388	soap_init(&soap);
389
390	soap.bind_flags \|= SO_REUSEADDR;
391	// avoid EADDRINUSE on bind()
392
393	int m, s; // master and slave sockets
394	m = soap_bind(&soap,
395	g_pcszBindToHost, // host: current machine
396	g_uBindToPort, // port
397	g_uBacklog); // backlog = max queue size for requests
398	if (m < 0)
399	WebLogSoapError(&soap);
400	else
401	{
402	WebLog("Socket connection successful: host = %s, port = %u, master socket = %d\n",
403	(g_pcszBindToHost) ? g_pcszBindToHost : "default (localhost)",
404	g_uBindToPort,
405	m);
406
407	for (unsigned long long i = 1;
408	;
409	i++)
410	{
411	s = soap_accept(&soap);
412	if (s < 0)
413	{
414	WebLogSoapError(&soap);
415	break;
416	}
417
418	WebLog("%llu: accepted connection from IP=%lu.%lu.%lu.%lu socket=%d... ",
419	i,
420	(soap.ip>>24)&0xFF,
421	(soap.ip>>16)&0xFF,
422	(soap.ip>>8)&0xFF,
423	soap.ip&0xFF,
424	s);
425
426	// enclose the entire RPC call in the sessions lock
427	// so that the watchdog cannot destroy COM objects
428	// while the RPC is ongoing
429	RTLock lock(g_mutexSessions);
430	// now process the RPC request (this goes into the
431	// generated code in methodmaps.cpp with all the COM calls)
432	if (soap_serve(&soap) != SOAP_OK)
433	{
434	WebLogSoapError(&soap);
435	}
436	lock.release();
437
438	WebLog("Request served\n");
439
440	soap_destroy(&soap); // clean up class instances
441	soap_end(&soap); // clean up everything and close socket
442	}
443	}
444	soap_done(&soap); // close master socket and detach environment
445
446	com::Shutdown();
447	}
448
449	/****************************************************************************
450	*
451	* Watchdog thread
452	*
453	****************************************************************************/
454
455	/**
456	* Watchdog thread, runs in the background while the webservice is alive.
457	*
458	* This gets started by main() and runs in the background to check all sessions
459	* for whether they have been no requests in a configurable timeout period. In
460	* that case, the session is automatically logged off.
461	*/
462	int fntWatchdog(RTTHREAD ThreadSelf, void *pvUser)
463	{
464	WEBDEBUG(("Watchdog thread started\n"));
465
466	while (1)
467	{
468	WEBDEBUG(("Watchdog: sleeping %d seconds\n", g_iWatchdogCheckInterval));
469	RTThreadSleep(g_iWatchdogCheckInterval*1000);
470
471	time_t tNow;
472	time(&tNow);
473
474	RTLock lock(g_mutexSessions);
475	WEBDEBUG(("Watchdog: checking %d sessions\n", g_mapSessions.size()));
476
477	SessionsMap::iterator
478	it = g_mapSessions.begin(),
479	itEnd = g_mapSessions.end();
480	while (it != itEnd)
481	{
482	WebServiceSession *pSession = it->second;
483	WEBDEBUG(("Watchdog: tNow: %d, session timestamp: %d\n", tNow, pSession->getLastObjectLookup()));
484	if ( tNow
485	> pSession->getLastObjectLookup() + g_iWatchdogTimeoutSecs
486	)
487	{
488	WEBDEBUG(("Watchdog: Session %llX timed out, deleting\n", pSession->getID()));
489	delete pSession;
490	it = g_mapSessions.begin();
491	}
492	else
493	++it;
494	}
495	lock.release();
496	}
497
498	WEBDEBUG(("Watchdog thread ending\n"));
499	return 0;
500	}
501
502	/****************************************************************************
503	*
504	* SOAP exceptions
505	*
506	****************************************************************************/
507
508	/**
509	* Helper function to raise a SOAP fault. Called by the other helper
510	* functions, which raise specific SOAP faults.
511	*
512	* @param soap
513	* @param str
514	* @param extype
515	* @param ex
516	*/
517	void RaiseSoapFault(struct soap *soap,
518	const std::string &str,
519	int extype,
520	void *ex)
521	{
522	// raise the fault
523	soap_sender_fault(soap, str.c_str(), NULL);
524
525	struct SOAP_ENV__Detail pDetail = (struct SOAP_ENV__Detail)soap_malloc(soap, sizeof(struct SOAP_ENV__Detail));
526
527	// without the following, gSOAP crashes miserably when sending out the
528	// data because it will try to serialize all fields (stupid documentation)
529	memset(pDetail, 0, sizeof(struct SOAP_ENV__Detail));
530
531	// fill extended info depending on SOAP version
532	if (soap->version == 2) // SOAP 1.2 is used
533	{
534	soap->fault->SOAP_ENV__Detail = pDetail;
535	soap->fault->SOAP_ENV__Detail->__type = extype;
536	soap->fault->SOAP_ENV__Detail->fault = ex;
537	soap->fault->SOAP_ENV__Detail->__any = NULL; // no other XML data
538	}
539	else
540	{
541	soap->fault->detail = pDetail;
542	soap->fault->detail->__type = extype;
543	soap->fault->detail->fault = ex;
544	soap->fault->detail->__any = NULL; // no other XML data
545	}
546	}
547
548	/**
549	* Raises a SOAP fault that signals that an invalid object was passed.
550	*
551	* @param soap
552	* @param obj
553	*/
554	void RaiseSoapInvalidObjectFault(struct soap *soap,
555	WSDLT_ID obj)
556	{
557	_vbox__InvalidObjectFault *ex = soap_new__vbox__InvalidObjectFault(soap, 1);
558	ex->badObjectID = obj;
559
560	/* std::ostringstream ostr;
561	ostr << std::hex << ex->badObjectID; */
562
563	std::string str("VirtualBox error: ");
564	str += "Invalid managed object reference \"" + obj + "\"";
565
566	RaiseSoapFault(soap,
567	str,
568	SOAP_TYPE__vbox__InvalidObjectFault,
569	ex);
570	}
571
572	/**
573	* Return a safe C++ string from the given COM string,
574	* without crashing if the COM string is empty.
575	* @param bstr
576	* @return
577	*/
578	std::string ConvertComString(const com::Bstr &bstr)
579	{
580	com::Utf8Str ustr(bstr);
581	const char *pcsz;
582	if ((pcsz = ustr.raw()))
583	return pcsz;
584	return "";
585	}
586
587	/**
588	* Return a safe C++ string from the given COM UUID,
589	* without crashing if the UUID is empty.
590	* @param bstr
591	* @return
592	*/
593	std::string ConvertComString(const com::Guid &bstr)
594	{
595	com::Utf8Str ustr(bstr);
596	const char *pcsz;
597	if ((pcsz = ustr.raw()))
598	return pcsz;
599	return "";
600	}
601
602	/**
603	* Raises a SOAP runtime fault.
604	*
605	* @param pObj
606	*/
607	void RaiseSoapRuntimeFault(struct soap *soap,
608	HRESULT apirc,
609	IUnknown *pObj)
610	{
611	com::ErrorInfo info(pObj);
612
613	WEBDEBUG((" error, raising SOAP exception\n"));
614
615	RTStrmPrintf(g_pStdErr, "API return code: 0x%08X (%Rhrc)\n", apirc, apirc);
616	RTStrmPrintf(g_pStdErr, "COM error info result code: 0x%lX\n", info.getResultCode());
617	RTStrmPrintf(g_pStdErr, "COM error info text: %ls\n", info.getText().raw());
618
619	// allocated our own soap fault struct
620	_vbox__RuntimeFault *ex = soap_new__vbox__RuntimeFault(soap, 1);
621	ex->resultCode = info.getResultCode();
622	ex->text = ConvertComString(info.getText());
623	ex->component = ConvertComString(info.getComponent());
624	ex->interfaceID = ConvertComString(info.getInterfaceID());
625
626	// compose descriptive message
627	std::ostringstream ostr;
628	ostr << std::hex << ex->resultCode;
629
630	std::string str("VirtualBox error: ");
631	str += ex->text;
632	str += " (0x";
633	str += ostr.str();
634	str += ")";
635
636	RaiseSoapFault(soap,
637	str,
638	SOAP_TYPE__vbox__RuntimeFault,
639	ex);
640	}
641
642	/****************************************************************************
643	*
644	* splitting and merging of object IDs
645	*
646	****************************************************************************/
647
648	uint64_t str2ulonglong(const char *pcsz)
649	{
650	uint64_t u = 0;
651	RTStrToUInt64Full(pcsz, 16, &u);
652	return u;
653	}
654
655	/**
656	* Splits a managed object reference (in string form, as
657	* passed in from a SOAP method call) into two integers for
658	* session and object IDs, respectively.
659	*
660	* @param id
661	* @param sessid
662	* @param objid
663	* @return
664	*/
665	bool SplitManagedObjectRef(const WSDLT_ID &id,
666	uint64_t *pSessid,
667	uint64_t *pObjid)
668	{
669	// 64-bit numbers in hex have 16 digits; hence
670	// the object-ref string must have 16 + "-" + 16 characters
671	std::string str;
672	if ( (id.length() == 33)
673	&& (id[16] == '-')
674	)
675	{
676	char psz[34];
677	memcpy(psz, id.c_str(), 34);
678	psz[16] = '\0';
679	if (pSessid)
680	*pSessid = str2ulonglong(psz);
681	if (pObjid)
682	*pObjid = str2ulonglong(psz + 17);
683	return true;
684	}
685
686	return false;
687	}
688
689	/**
690	* Creates a managed object reference (in string form) from
691	* two integers representing a session and object ID, respectively.
692	*
693	* @param sz Buffer with at least 34 bytes space to receive MOR string.
694	* @param sessid
695	* @param objid
696	* @return
697	*/
698	void MakeManagedObjectRef(char *sz,
699	uint64_t &sessid,
700	uint64_t &objid)
701	{
702	RTStrFormatNumber(sz, sessid, 16, 16, 0, RTSTR_F_64BIT \| RTSTR_F_ZEROPAD);
703	sz[16] = '-';
704	RTStrFormatNumber(sz + 17, objid, 16, 16, 0, RTSTR_F_64BIT \| RTSTR_F_ZEROPAD);
705	}
706
707	/****************************************************************************
708	*
709	* class WebServiceSession
710	*
711	****************************************************************************/
712
713	class WebServiceSessionPrivate
714	{
715	public:
716	ManagedObjectsMapById _mapManagedObjectsById;
717	ManagedObjectsMapByPtr _mapManagedObjectsByPtr;
718	};
719
720	/**
721	* Constructor for the session object.
722	*
723	* Preconditions: Caller must have locked g_mutexSessions.
724	*
725	* @param username
726	* @param password
727	*/
728	WebServiceSession::WebServiceSession()
729	: _fDestructing(false),
730	_pISession(NULL),
731	_tLastObjectLookup(0)
732	{
733	_pp = new WebServiceSessionPrivate;
734	_uSessionID = RTRandU64();
735
736	// register this session globally
737	g_mapSessions[_uSessionID] = this;
738	}
739
740	/**
741	* Destructor. Cleans up and destroys all contained managed object references on the way.
742	*
743	* Preconditions: Caller must have locked g_mutexSessions.
744	*/
745	WebServiceSession::~WebServiceSession()
746	{
747	// delete us from global map first so we can't be found
748	// any more while we're cleaning up
749	g_mapSessions.erase(_uSessionID);
750
751	// notify ManagedObjectRef destructor so it won't
752	// remove itself from the maps; this avoids rebalancing
753	// the map's tree on every delete as well
754	_fDestructing = true;
755
756	// if (_pISession)
757	// {
758	// delete _pISession;
759	// _pISession = NULL;
760	// }
761
762	ManagedObjectsMapById::iterator
763	it,
764	end = _pp->_mapManagedObjectsById.end();
765	for (it = _pp->_mapManagedObjectsById.begin();
766	it != end;
767	++it)
768	{
769	ManagedObjectRef *pRef = it->second;
770	delete pRef; // this frees the contained ComPtr as well
771	}
772
773	delete _pp;
774	}
775
776	/**
777	* Authenticate the username and password against an authentification authority.
778	*
779	* @return 0 if the user was successfully authenticated, or an error code
780	* otherwise.
781	*/
782
783	int WebServiceSession::authenticate(const char *pcszUsername,
784	const char *pcszPassword)
785	{
786	int rc = VERR_WEB_NOT_AUTHENTICATED;
787
788	RTLock lock(g_mutexAuthLib);
789
790	static bool fAuthLibLoaded = false;
791	static PVRDPAUTHENTRY pfnAuthEntry = NULL;
792	static PVRDPAUTHENTRY2 pfnAuthEntry2 = NULL;
793
794	if (!fAuthLibLoaded)
795	{
796	// retrieve authentication library from system properties
797	ComPtr<ISystemProperties> systemProperties;
798	g_pVirtualBox->COMGETTER(SystemProperties)(systemProperties.asOutParam());
799
800	com::Bstr authLibrary;
801	systemProperties->COMGETTER(WebServiceAuthLibrary)(authLibrary.asOutParam());
802	com::Utf8Str filename = authLibrary;
803
804	WEBDEBUG(("external authentication library is '%ls'\n", authLibrary.raw()));
805
806	if (filename == "null")
807	// authentication disabled, let everyone in:
808	fAuthLibLoaded = true;
809	else
810	{
811	RTLDRMOD hlibAuth = 0;
812	do
813	{
814	rc = RTLdrLoad(filename.raw(), &hlibAuth);
815	if (RT_FAILURE(rc))
816	{
817	WEBDEBUG(("%s() Failed to load external authentication library. Error code: %Rrc\n", __FUNCTION__, rc));
818	break;
819	}
820
821	if (RT_FAILURE(rc = RTLdrGetSymbol(hlibAuth, "VRDPAuth2", (void**)&pfnAuthEntry2)))
822	WEBDEBUG(("%s(): Could not resolve import '%s'. Error code: %Rrc\n", __FUNCTION__, "VRDPAuth2", rc));
823
824	if (RT_FAILURE(rc = RTLdrGetSymbol(hlibAuth, "VRDPAuth", (void**)&pfnAuthEntry)))
825	WEBDEBUG(("%s(): Could not resolve import '%s'. Error code: %Rrc\n", __FUNCTION__, "VRDPAuth", rc));
826
827	if (pfnAuthEntry \|\| pfnAuthEntry2)
828	fAuthLibLoaded = true;
829
830	} while (0);
831	}
832	}
833
834	rc = VERR_WEB_NOT_AUTHENTICATED;
835	VRDPAuthResult result;
836	if (pfnAuthEntry2)
837	{
838	result = pfnAuthEntry2(NULL, VRDPAuthGuestNotAsked, pcszUsername, pcszPassword, NULL, true, 0);
839	WEBDEBUG(("%s(): result of VRDPAuth2(): %d\n", __FUNCTION__, result));
840	if (result == VRDPAuthAccessGranted)
841	rc = 0;
842	}
843	else if (pfnAuthEntry)
844	{
845	result = pfnAuthEntry(NULL, VRDPAuthGuestNotAsked, pcszUsername, pcszPassword, NULL);
846	WEBDEBUG(("%s(): result of VRDPAuth(%s, [%d]): %d\n", __FUNCTION__, pcszUsername, strlen(pcszPassword), result));
847	if (result == VRDPAuthAccessGranted)
848	rc = 0;
849	}
850	else if (fAuthLibLoaded)
851	// fAuthLibLoaded = true but both pointers are NULL:
852	// then the authlib was "null" and auth was disabled
853	rc = 0;
854	else
855	{
856	WEBDEBUG(("Could not resolve VRDPAuth2 or VRDPAuth entry point"));
857	}
858
859	if (!rc)
860	{
861	do
862	{
863	// now create the ISession object that this webservice session can use
864	// (and of which IWebsessionManager::getSessionObject returns a managed object reference)
865	ComPtr<ISession> session;
866	if (FAILED(rc = session.createInprocObject(CLSID_Session)))
867	{
868	WEBDEBUG(("ERROR: cannot create session object!"));
869	break;
870	}
871
872	_pISession = new ManagedObjectRef(*this, g_pcszISession, session);
873
874	if (g_fVerbose)
875	{
876	ISession *p = session;
877	std::string strMOR = _pISession->toWSDL();
878	WEBDEBUG((" * %s: created session object with comptr 0x%lX, MOR = %s\n", __FUNCTION__, p, strMOR.c_str()));
879	}
880	} while (0);
881	}
882
883	return rc;
884	}
885
886	/**
887	* Look up, in this session, whether a ManagedObjectRef has already been
888	* created for the given COM pointer.
889	*
890	* Note how we require that a ComPtr<IUnknown> is passed, which causes a
891	* queryInterface call when the caller passes in a different type, since
892	* a ComPtr<IUnknown> will point to something different than a
893	* ComPtr<IVirtualBox>, for example. As we store the ComPtr<IUnknown> in
894	* our private hash table, we must search for one too.
895	*
896	* Preconditions: Caller must have locked g_mutexSessions.
897	*
898	* @param pcu pointer to a COM object.
899	* @return The existing ManagedObjectRef that represents the COM object, or NULL if there's none yet.
900	*/
901	ManagedObjectRef* WebServiceSession::findRefFromPtr(const ComPtr<IUnknown> &pcu)
902	{
903	IUnknown *p = pcu;
904	uintptr_t ulp = (uintptr_t)p;
905	ManagedObjectRef *pRef;
906	// WEBDEBUG((" %s: looking up 0x%lX\n", __FUNCTION__, ulp));
907	ManagedObjectsMapByPtr::iterator it = _pp->_mapManagedObjectsByPtr.find(ulp);
908	if (it != _pp->_mapManagedObjectsByPtr.end())
909	{
910	pRef = it->second;
911	WSDLT_ID id = pRef->toWSDL();
912	WEBDEBUG((" %s: found existing ref %s for COM obj 0x%lX\n", __FUNCTION__, id.c_str(), ulp));
913	}
914	else
915	pRef = NULL;
916	return pRef;
917	}
918
919	/**
920	* Static method which attempts to find the session for which the given managed
921	* object reference was created, by splitting the reference into the session and
922	* object IDs and then looking up the session object for that session ID.
923	*
924	* Preconditions: Caller must have locked g_mutexSessions.
925	*
926	* @param id Managed object reference (with combined session and object IDs).
927	* @return
928	*/
929	WebServiceSession* WebServiceSession::findSessionFromRef(const WSDLT_ID &id)
930	{
931	WebServiceSession *pSession = NULL;
932	uint64_t sessid;
933	if (SplitManagedObjectRef(id,
934	&sessid,
935	NULL))
936	{
937	SessionsMapIterator it = g_mapSessions.find(sessid);
938	if (it != g_mapSessions.end())
939	pSession = it->second;
940	}
941	return pSession;
942	}
943
944	/**
945	*
946	*/
947	WSDLT_ID WebServiceSession::getSessionObject() const
948	{
949	return _pISession->toWSDL();
950	}
951
952	/**
953	* Touches the webservice session to prevent it from timing out.
954	*
955	* Each webservice session has an internal timestamp that records
956	* the last request made to it from the client that started it.
957	* If no request was made within a configurable timeframe, then
958	* the client is logged off automatically,
959	* by calling IWebsessionManager::logoff()
960	*/
961	void WebServiceSession::touch()
962	{
963	time(&_tLastObjectLookup);
964	}
965
966	/**
967	*
968	*/
969	void WebServiceSession::DumpRefs()
970	{
971	WEBDEBUG((" dumping object refs:\n"));
972	ManagedObjectsIteratorById
973	iter = _pp->_mapManagedObjectsById.begin(),
974	end = _pp->_mapManagedObjectsById.end();
975	for (;
976	iter != end;
977	++iter)
978	{
979	ManagedObjectRef *pRef = iter->second;
980	uint64_t id = pRef->getID();
981	void *p = pRef->getComPtr();
982	WEBDEBUG((" objid %llX: comptr 0x%lX\n", id, p));
983	}
984	}
985
986	/****************************************************************************
987	*
988	* class ManagedObjectRef
989	*
990	****************************************************************************/
991
992	/**
993	* Constructor, which assigns a unique ID to this managed object
994	* reference and stores it two global hashs:
995	*
996	* a) G_mapManagedObjectsById, which maps ManagedObjectID's to
997	* instances of this class; this hash is then used by the
998	* findObjectFromRef() template function in vboxweb.h
999	* to quickly retrieve the COM object from its managed
1000	* object ID (mostly in the context of the method mappers
1001	* in methodmaps.cpp, when a web service client passes in
1002	* a managed object ID);
1003	*
1004	* b) G_mapManagedObjectsByComPtr, which maps COM pointers to
1005	* instances of this class; this hash is used by
1006	* createRefFromObject() to quickly figure out whether an
1007	* instance already exists for a given COM pointer.
1008	*
1009	* This does _not_ check whether another instance already
1010	* exists in the hash. This gets called only from the
1011	* createRefFromObject() template function in vboxweb.h, which
1012	* does perform that check.
1013	*
1014	* Preconditions: Caller must have locked g_mutexSessions.
1015	*
1016	* @param pObj
1017	*/
1018	ManagedObjectRef::ManagedObjectRef(WebServiceSession &session,
1019	const char *pcszInterface,
1020	const ComPtr<IUnknown> &pc)
1021	: _session(session),
1022	_pObj(pc),
1023	_pcszInterface(pcszInterface)
1024	{
1025	ComPtr<IUnknown> pcUnknown(pc);
1026	_ulp = (uintptr_t)(IUnknown*)pcUnknown;
1027
1028	_id = ++g_iMaxManagedObjectID;
1029	// and count globally
1030	ULONG64 cTotal = ++g_cManagedObjects; // raise global count and make a copy for the debug message below
1031
1032	char sz[34];
1033	MakeManagedObjectRef(sz, session._uSessionID, _id);
1034	_strID = sz;
1035
1036	session._pp->_mapManagedObjectsById[_id] = this;
1037	session._pp->_mapManagedObjectsByPtr[_ulp] = this;
1038
1039	session.touch();
1040
1041	WEBDEBUG((" * %s: MOR created for ulp 0x%lX (%s), new ID is %llX; now %lld objects total\n", __FUNCTION__, _ulp, pcszInterface, _id, cTotal));
1042	}
1043
1044	/**
1045	* Destructor; removes the instance from the global hash of
1046	* managed objects.
1047	*
1048	* Preconditions: Caller must have locked g_mutexSessions.
1049	*/
1050	ManagedObjectRef::~ManagedObjectRef()
1051	{
1052	ULONG64 cTotal = --g_cManagedObjects;
1053
1054	WEBDEBUG((" * %s: deleting MOR for ID %llX (%s); now %lld objects total\n", __FUNCTION__, _id, _pcszInterface, cTotal));
1055
1056	// if we're being destroyed from the session's destructor,
1057	// then that destructor is iterating over the maps, so
1058	// don't remove us there! (data integrity + speed)
1059	if (!_session._fDestructing)
1060	{
1061	WEBDEBUG((" * %s: removing from session maps\n", __FUNCTION__));
1062	_session._pp->_mapManagedObjectsById.erase(_id);
1063	if (_session._pp->_mapManagedObjectsByPtr.erase(_ulp) != 1)
1064	WEBDEBUG((" WARNING: could not find %llX in _mapManagedObjectsByPtr\n", _ulp));
1065	}
1066	}
1067
1068	/**
1069	* Converts the ID of this managed object reference to string
1070	* form, for returning with SOAP data or similar.
1071	*
1072	* @return The ID in string form.
1073	*/
1074	WSDLT_ID ManagedObjectRef::toWSDL() const
1075	{
1076	return _strID;
1077	}
1078
1079	/**
1080	* Static helper method for findObjectFromRef() template that actually
1081	* looks up the object from a given integer ID.
1082	*
1083	* This has been extracted into this non-template function to reduce
1084	* code bloat as we have the actual STL map lookup only in this function.
1085	*
1086	* This also "touches" the timestamp in the session whose ID is encoded
1087	* in the given integer ID, in order to prevent the session from timing
1088	* out.
1089	*
1090	* Preconditions: Caller must have locked g_mutexSessions.
1091	*
1092	* @param strId
1093	* @param iter
1094	* @return
1095	*/
1096	int ManagedObjectRef::findRefFromId(const WSDLT_ID &id,
1097	ManagedObjectRef **pRef)
1098	{
1099	int rc = 0;
1100
1101	do
1102	{
1103	uint64_t sessid;
1104	uint64_t objid;
1105	WEBDEBUG((" %s(): looking up objref %s\n", __FUNCTION__, id.c_str()));
1106	if (!SplitManagedObjectRef(id,
1107	&sessid,
1108	&objid))
1109	{
1110	rc = VERR_WEB_INVALID_MANAGED_OBJECT_REFERENCE;
1111	break;
1112	}
1113
1114	WEBDEBUG((" %s(): sessid %llX, objid %llX\n", __FUNCTION__, sessid, objid));
1115	SessionsMapIterator it = g_mapSessions.find(sessid);
1116	if (it == g_mapSessions.end())
1117	{
1118	WEBDEBUG((" %s: cannot find session for objref %s\n", __FUNCTION__, id.c_str()));
1119	rc = VERR_WEB_INVALID_SESSION_ID;
1120	break;
1121	}
1122
1123	WebServiceSession *pSess = it->second;
1124	// "touch" session to prevent it from timing out
1125	pSess->touch();
1126
1127	ManagedObjectsIteratorById iter = pSess->_pp->_mapManagedObjectsById.find(objid);
1128	if (iter == pSess->_pp->_mapManagedObjectsById.end())
1129	{
1130	WEBDEBUG((" %s: cannot find comobj for objref %s\n", __FUNCTION__, id.c_str()));
1131	rc = VERR_WEB_INVALID_OBJECT_ID;
1132	break;
1133	}
1134
1135	*pRef = iter->second;
1136
1137	} while (0);
1138
1139	return rc;
1140	}
1141
1142	/****************************************************************************
1143	*
1144	* interface IManagedObjectRef
1145	*
1146	****************************************************************************/
1147
1148	/**
1149	* This is the hard-coded implementation for the IManagedObjectRef::getInterfaceName()
1150	* that our WSDL promises to our web service clients. This method returns a
1151	* string describing the interface that this managed object reference
1152	* supports, e.g. "IMachine".
1153	*
1154	* @param soap
1155	* @param req
1156	* @param resp
1157	* @return
1158	*/
1159	int __vbox__IManagedObjectRef_USCOREgetInterfaceName(
1160	struct soap *soap,
1161	_vbox__IManagedObjectRef_USCOREgetInterfaceName *req,
1162	_vbox__IManagedObjectRef_USCOREgetInterfaceNameResponse *resp)
1163	{
1164	HRESULT rc = SOAP_OK;
1165	WEBDEBUG(("\n-- entering %s\n", __FUNCTION__));
1166
1167	do {
1168	ManagedObjectRef *pRef;
1169	if (!ManagedObjectRef::findRefFromId(req->_USCOREthis, &pRef))
1170	resp->returnval = pRef->getInterfaceName();
1171
1172	} while (0);
1173
1174	WEBDEBUG(("-- leaving %s, rc: 0x%lX\n", __FUNCTION__, rc));
1175	if (rc)
1176	return SOAP_FAULT;
1177	return SOAP_OK;
1178	}
1179
1180	/**
1181	* This is the hard-coded implementation for the IManagedObjectRef::release()
1182	* that our WSDL promises to our web service clients. This method releases
1183	* a managed object reference and removes it from our stacks.
1184	*
1185	* @param soap
1186	* @param req
1187	* @param resp
1188	* @return
1189	*/
1190	int __vbox__IManagedObjectRef_USCORErelease(
1191	struct soap *soap,
1192	_vbox__IManagedObjectRef_USCORErelease *req,
1193	_vbox__IManagedObjectRef_USCOREreleaseResponse *resp)
1194	{
1195	HRESULT rc = SOAP_OK;
1196	WEBDEBUG(("\n-- entering %s\n", __FUNCTION__));
1197
1198	do {
1199	ManagedObjectRef *pRef;
1200	if ((rc = ManagedObjectRef::findRefFromId(req->_USCOREthis, &pRef)))
1201	{
1202	RaiseSoapInvalidObjectFault(soap, req->_USCOREthis);
1203	break;
1204	}
1205
1206	WEBDEBUG((" found reference; deleting!\n"));
1207	delete pRef;
1208	// this removes the object from all stacks; since
1209	// there's a ComPtr<> hidden inside the reference,
1210	// this should also invoke Release() on the COM
1211	// object
1212	} while (0);
1213
1214	WEBDEBUG(("-- leaving %s, rc: 0x%lX\n", __FUNCTION__, rc));
1215	if (rc)
1216	return SOAP_FAULT;
1217	return SOAP_OK;
1218	}
1219
1220	/****************************************************************************
1221	*
1222	* interface IWebsessionManager
1223	*
1224	****************************************************************************/
1225
1226	/**
1227	* Hard-coded implementation for IWebsessionManager::logon. As opposed to the underlying
1228	* COM API, this is the first method that a webservice client must call before the
1229	* webservice will do anything useful.
1230	*
1231	* This returns a managed object reference to the global IVirtualBox object; into this
1232	* reference a session ID is encoded which remains constant with all managed object
1233	* references returned by other methods.
1234	*
1235	* This also creates an instance of ISession, which is stored internally with the
1236	* webservice session and can be retrieved with IWebsessionManager::getSessionObject
1237	* (__vbox__IWebsessionManager_USCOREgetSessionObject). In order for the
1238	* VirtualBox web service to do anything useful, one usually needs both a
1239	* VirtualBox and an ISession object, for which these two methods are designed.
1240	*
1241	* When the webservice client is done, it should call IWebsessionManager::logoff. This
1242	* will clean up internally (destroy all remaining managed object references and
1243	* related COM objects used internally).
1244	*
1245	* After logon, an internal timeout ensures that if the webservice client does not
1246	* call any methods, after a configurable number of seconds, the webservice will log
1247	* off the client automatically. This is to ensure that the webservice does not
1248	* drown in managed object references and eventually deny service. Still, it is
1249	* a much better solution, both for performance and cleanliness, for the webservice
1250	* client to clean up itself.
1251	*
1252	* Preconditions: Caller must have locked g_mutexSessions.
1253	* Since this gets called from main() like other SOAP method
1254	* implementations, this is ensured.
1255	*
1256	* @param
1257	* @param vbox__IWebsessionManager_USCORElogon
1258	* @param vbox__IWebsessionManager_USCORElogonResponse
1259	* @return
1260	*/
1261	int __vbox__IWebsessionManager_USCORElogon(
1262	struct soap*,
1263	_vbox__IWebsessionManager_USCORElogon *req,
1264	_vbox__IWebsessionManager_USCORElogonResponse *resp)
1265	{
1266	HRESULT rc = SOAP_OK;
1267	WEBDEBUG(("\n-- entering %s\n", __FUNCTION__));
1268
1269	do {
1270	// create new session; the constructor stores the new session
1271	// in the global map automatically
1272	WebServiceSession *pSession = new WebServiceSession();
1273
1274	// authenticate the user
1275	if (!(pSession->authenticate(req->username.c_str(),
1276	req->password.c_str())))
1277	{
1278	// in the new session, create a managed object reference (moref) for the
1279	// global VirtualBox object; this encodes the session ID in the moref so
1280	// that it will be implicitly be included in all future requests of this
1281	// webservice client
1282	ManagedObjectRef pRef = new ManagedObjectRef(pSession, g_pcszIVirtualBox, g_pVirtualBox);
1283	resp->returnval = pRef->toWSDL();
1284	WEBDEBUG(("VirtualBox object ref is %s\n", resp->returnval.c_str()));
1285	}
1286	} while (0);
1287
1288	WEBDEBUG(("-- leaving %s, rc: 0x%lX\n", __FUNCTION__, rc));
1289	if (rc)
1290	return SOAP_FAULT;
1291	return SOAP_OK;
1292	}
1293
1294	/**
1295	* Returns the ISession object that was created for the webservice client
1296	* on logon.
1297	*
1298	* Preconditions: Caller must have locked g_mutexSessions.
1299	* Since this gets called from main() like other SOAP method
1300	* implementations, this is ensured.
1301	*/
1302	int __vbox__IWebsessionManager_USCOREgetSessionObject(
1303	struct soap*,
1304	_vbox__IWebsessionManager_USCOREgetSessionObject *req,
1305	_vbox__IWebsessionManager_USCOREgetSessionObjectResponse *resp)
1306	{
1307	HRESULT rc = SOAP_OK;
1308	WEBDEBUG(("\n-- entering %s\n", __FUNCTION__));
1309
1310	do {
1311	WebServiceSession* pSession;
1312	if ((pSession = WebServiceSession::findSessionFromRef(req->refIVirtualBox)))
1313	{
1314	resp->returnval = pSession->getSessionObject();
1315	}
1316	} while (0);
1317
1318	WEBDEBUG(("-- leaving %s, rc: 0x%lX\n", __FUNCTION__, rc));
1319	if (rc)
1320	return SOAP_FAULT;
1321	return SOAP_OK;
1322	}
1323
1324	/**
1325	* hard-coded implementation for IWebsessionManager::logoff.
1326	*
1327	* Preconditions: Caller must have locked g_mutexSessions.
1328	* Since this gets called from main() like other SOAP method
1329	* implementations, this is ensured.
1330	*
1331	* @param
1332	* @param vbox__IWebsessionManager_USCORElogon
1333	* @param vbox__IWebsessionManager_USCORElogonResponse
1334	* @return
1335	*/
1336	int __vbox__IWebsessionManager_USCORElogoff(
1337	struct soap*,
1338	_vbox__IWebsessionManager_USCORElogoff *req,
1339	_vbox__IWebsessionManager_USCORElogoffResponse *resp)
1340	{
1341	HRESULT rc = SOAP_OK;
1342	WEBDEBUG(("\n-- entering %s\n", __FUNCTION__));
1343
1344	do {
1345	WebServiceSession* pSession;
1346	if ((pSession = WebServiceSession::findSessionFromRef(req->refIVirtualBox)))
1347	{
1348	delete pSession;
1349	// destructor cleans up
1350
1351	WEBDEBUG(("session destroyed, %d sessions left open\n", g_mapSessions.size()));
1352	}
1353	} while (0);
1354
1355	WEBDEBUG(("-- leaving %s, rc: 0x%lX\n", __FUNCTION__, rc));
1356	if (rc)
1357	return SOAP_FAULT;
1358	return SOAP_OK;
1359	}

Note: See TracBrowser for help on using the repository browser.

source: vbox/trunk/src/VBox/Main/webservice/vboxweb.cpp@ 17581

Download in other formats: