summaryrefslogtreecommitdiff
path: root/indra/newview/llappviewerlinux.cpp
blob: c1e8f38c5125b73e68774ed9be4daaf2e876e540 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
/**
 * @file llappviewerlinux.cpp
 * @brief The LLAppViewerLinux class definitions
 *
 * $LicenseInfo:firstyear=2007&license=viewerlgpl$
 * Second Life Viewer Source Code
 * Copyright (C) 2010, Linden Research, Inc.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation;
 * version 2.1 of the License only.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
 * $/LicenseInfo$
 */

#include "llviewerprecompiledheaders.h"

#include "llappviewerlinux.h"

#include "llcommandlineparser.h"

#include "lldiriterator.h"
#include "llurldispatcher.h"        // SLURL from other app instance
#include "llviewernetwork.h"
#include "llviewercontrol.h"
#include "llwindowsdl.h"
#include "llmd5.h"
#include "llfindlocale.h"

#include <exception>

#if LL_GLIB
#include <gio/gio.h>
#endif
#include <netinet/in.h>
#include <resolv.h>

#if (__GLIBC__*1000 + __GLIBC_MINOR__) >= 2034
extern "C"
{
  int __res_nquery(res_state statep,
                   const char *dname, int qclass, int type,
                   unsigned char *answer, int anslen)
  {
    return res_nquery( statep, dname, qclass, type, answer, anslen );
  }

  int __dn_expand(const unsigned char *msg,
                  const unsigned char *eomorig,
                  const unsigned char *comp_dn, char *exp_dn,
                  int length)
  {
    return dn_expand( msg,eomorig,comp_dn,exp_dn,length);
  }
}
#endif

#if LL_SEND_CRASH_REPORTS
#include "breakpad/client/linux/handler/exception_handler.h"
#include "breakpad/common/linux/http_upload.h"
#include "lldir.h"
#include "../llcrashlogger/llcrashlogger.h"
#include "jsoncpp/reader.h" // JSON

#endif

#define VIEWERAPI_SERVICE "com.secondlife.ViewerAppAPIService"
#define VIEWERAPI_PATH "/com/secondlife/ViewerAppAPI"
#define VIEWERAPI_INTERFACE "com.secondlife.ViewerAppAPI"

#if LL_GLIB
static const char * DBUS_SERVER = "<node name=\"/com/secondlife/ViewerAppAPI\">\n"
                                  "  <interface name=\"com.secondlife.ViewerAppAPI\">\n"
                                  "    <annotation name=\"org.freedesktop.DBus.GLib.CSymbol\" value=\"viewer_app_api\"/>\n"
                                  "    <method name=\"GoSLURL\">\n"
                                  "      <annotation name=\"org.freedesktop.DBus.GLib.CSymbol\" value=\"dispatchSLURL\"/>\n"
                                  "      <arg type=\"s\" name=\"slurl\" direction=\"in\" />\n"
                                  "    </method>\n"
                                  "  </interface>\n"
                                  "</node>";

typedef struct
{
    GObject parent;
} ViewerAppAPI;
#endif

namespace
{
    int gArgC = 0;
    char **gArgV = NULL;
    void (*gOldTerminateHandler)() = NULL;
}


static void exceptionTerminateHandler()
{
    // reinstall default terminate() handler in case we re-terminate.
    if (gOldTerminateHandler) std::set_terminate(gOldTerminateHandler);
    // treat this like a regular viewer crash, with nice stacktrace etc.
    long *null_ptr;
    null_ptr = 0;
    *null_ptr = 0xDEADBEEF; //Force an exception that will trigger breakpad.
    // we've probably been killed-off before now, but...
    gOldTerminateHandler(); // call old terminate() handler
}

int main( int argc, char **argv )
{
    gArgC = argc;
    gArgV = argv;

    LLAppViewer* viewer_app_ptr = new LLAppViewerLinux();

    // install unexpected exception handler
    gOldTerminateHandler = std::set_terminate(exceptionTerminateHandler);

    unsetenv( "LD_PRELOAD" ); // <FS:ND/> Get rid of any preloading, we do not want this to happen during startup of plugins.

    bool ok = viewer_app_ptr->init();
    if(!ok)
    {
        LL_WARNS() << "Application init failed." << LL_ENDL;
        return -1;
    }

        // Run the application main loop
    while (! viewer_app_ptr->frame())
    {}

    if (!LLApp::isError())
    {
        //
        // We don't want to do cleanup here if the error handler got called -
        // the assumption is that the error handler is responsible for doing
        // app cleanup if there was a problem.
        //
        viewer_app_ptr->cleanup();
    }
    delete viewer_app_ptr;
    viewer_app_ptr = NULL;
    return 0;
}

LLAppViewerLinux::LLAppViewerLinux()
{
}

LLAppViewerLinux::~LLAppViewerLinux()
{
}

#if LL_SEND_CRASH_REPORTS
std::string gCrashLogger;
std::string gVersion;
std::string gBugsplatDB;
std::string gCrashBehavior;

static bool dumpCallback(const google_breakpad::MinidumpDescriptor& descriptor, void* context, bool succeeded)
{
    if( fork() == 0 )
        execl( gCrashLogger.c_str(), gCrashLogger.c_str(), descriptor.path(), gVersion.c_str(), gBugsplatDB.c_str(),  gCrashBehavior.c_str(), nullptr );
    return succeeded;
}

void setupBreadpad()
{
    std::string build_data_fname(gDirUtilp->getExpandedFilename(LL_PATH_EXECUTABLE, "build_data.json"));
    gCrashLogger =  gDirUtilp->getExpandedFilename(LL_PATH_EXECUTABLE, "linux-crash-logger.bin");

    llifstream inf(build_data_fname.c_str());
    if(!inf.is_open())
    {
        LL_WARNS("BUGSPLAT") << "Can't initialize BugSplat, can't read '" << build_data_fname << "'" << LL_ENDL;
        return;
    }

    Json::Reader reader;
    Json::Value build_data;
    if(!reader.parse(inf, build_data, false))
    {
        LL_WARNS("BUGSPLAT") << "Can't initialize BugSplat, can't parse '" << build_data_fname << "': "
                             << reader.getFormatedErrorMessages() << LL_ENDL;
        return;
    }

    Json::Value BugSplat_DB = build_data["BugSplat DB"];
    if(!BugSplat_DB)
    {
        LL_WARNS("BUGSPLAT") << "Can't initialize BugSplat, no 'BugSplat DB' entry in '" << build_data_fname
                             << "'" << LL_ENDL;
        return;
    }
    gVersion = STRINGIZE(
            LL_VIEWER_VERSION_MAJOR << '.' << LL_VIEWER_VERSION_MINOR << '.' << LL_VIEWER_VERSION_PATCH
                                    << '.' << LL_VIEWER_VERSION_BUILD);
    gBugsplatDB = BugSplat_DB.asString();

    LL_INFOS("BUGSPLAT") << "Initializing with crash logger: " << gCrashLogger << " database: " << gBugsplatDB << " version: " << gVersion << LL_ENDL;

    google_breakpad::MinidumpDescriptor *descriptor = new google_breakpad::MinidumpDescriptor(gDirUtilp->getExpandedFilename(LL_PATH_DUMP, ""));
    google_breakpad::ExceptionHandler *eh = new google_breakpad::ExceptionHandler(*descriptor, NULL, dumpCallback, NULL, true, -1);
}
#endif

bool LLAppViewerLinux::init()
{
    bool success = LLAppViewer::init();

#if LL_SEND_CRASH_REPORTS
    S32 nCrashSubmitBehavior = gCrashSettings.getS32("CrashSubmitBehavior");

    // For the first version we just consider always send and create a nice dialog for CRASH_BEHAVIOR_ASK later.
    if (success && nCrashSubmitBehavior != CRASH_BEHAVIOR_NEVER_SEND )
    {
        if( nCrashSubmitBehavior == CRASH_BEHAVIOR_ASK )
            gCrashBehavior = "ask";
        else
            gCrashBehavior = "send";
        setupBreadpad();
    }
#endif

    return success;
}

bool LLAppViewerLinux::restoreErrorTrap()
{
    // *NOTE:Mani there is a case for implementing this on the mac.
    // Linux doesn't need it to my knowledge.
    return true;
}

/////////////////////////////////////////
#if LL_GLIB

typedef struct
{
        GObjectClass parent_class;
} ViewerAppAPIClass;

static void viewerappapi_init(ViewerAppAPI *server);
static void viewerappapi_class_init(ViewerAppAPIClass *klass);

G_DEFINE_TYPE(ViewerAppAPI, viewerappapi, G_TYPE_OBJECT);

void viewerappapi_class_init(ViewerAppAPIClass *klass)
{
}

static void dispatchSLURL(gchar const *slurl)
{
    LL_INFOS() << "Was asked to go to slurl: " << slurl << LL_ENDL;

    std::string url = slurl;
    LLMediaCtrl* web = NULL;
    const bool trusted_browser = false;
    LLURLDispatcher::dispatch(url, "", web, trusted_browser);
}

static void DoMethodeCall (GDBusConnection       *connection,
                                const gchar           *sender,
                                const gchar           *object_path,
                                const gchar           *interface_name,
                                const gchar           *method_name,
                                GVariant              *parameters,
                                GDBusMethodInvocation *invocation,
                                gpointer               user_data)
{
    LL_INFOS() << "DBUS message " << method_name << "  from: " << sender << " interface: " << interface_name << LL_ENDL;
    const gchar *slurl;

    g_variant_get (parameters, "(&s)", &slurl);
    dispatchSLURL(slurl);
}

GDBusNodeInfo *gBusNodeInfo = nullptr;
static const GDBusInterfaceVTable interface_vtable =
        {
                DoMethodeCall
        };
static void busAcquired(GDBusConnection *connection, const gchar *name, gpointer user_data)
{
    auto id = g_dbus_connection_register_object(connection,
                                                VIEWERAPI_PATH,
                                                gBusNodeInfo->interfaces[0],
                                                &interface_vtable,
                                                NULL,  /* user_data */
                                                             NULL,  /* user_data_free_func */
                                                             NULL); /* GError** */
    g_assert (id > 0);
}

static void nameAcquired(GDBusConnection *connection, const gchar *name, gpointer user_data)
{
}

static void nameLost(GDBusConnection *connection, const gchar *name, gpointer user_data)
{

}
void viewerappapi_init(ViewerAppAPI *server)
{
    gBusNodeInfo = g_dbus_node_info_new_for_xml (DBUS_SERVER, NULL);
    g_assert (gBusNodeInfo != NULL);

    g_bus_own_name(G_BUS_TYPE_SESSION,
                   VIEWERAPI_SERVICE,
                   G_BUS_NAME_OWNER_FLAGS_NONE,
                   busAcquired,
                   nameAcquired,
                   nameLost,
                   NULL,
                   NULL);

}

///

//virtual
bool LLAppViewerLinux::initSLURLHandler()
{
    //ViewerAppAPI *api_server = (ViewerAppAPI*)
    g_object_new(viewerappapi_get_type(), NULL);

    return true;
}

//virtual
bool LLAppViewerLinux::sendURLToOtherInstance(const std::string& url)
{
    auto *pBus = g_bus_get_sync(G_BUS_TYPE_SESSION, NULL, nullptr);

    if( !pBus )
    {
        LL_WARNS() << "Getting dbus failed." << LL_ENDL;
        return false;
    }

    auto pProxy = g_dbus_proxy_new_sync(pBus, G_DBUS_PROXY_FLAGS_NONE, nullptr,
                                        VIEWERAPI_SERVICE, VIEWERAPI_PATH,
                                        VIEWERAPI_INTERFACE, nullptr, nullptr);

    if( !pProxy )
    {
        LL_WARNS() << "Cannot create new dbus proxy." << LL_ENDL;
        g_object_unref( pBus );
        return false;
    }

    auto *pArgs = g_variant_new( "(s)", url.c_str() );
    if( !pArgs )
    {
        LL_WARNS() << "Cannot create new variant." << LL_ENDL;
        g_object_unref( pBus );
        return false;
    }

    auto pRes  = g_dbus_proxy_call_sync(pProxy,
                                        "GoSLURL",
                                        pArgs,
                                        G_DBUS_CALL_FLAGS_NONE,
                                        -1, nullptr, nullptr);



    if( pRes )
        g_variant_unref( pRes );
    g_object_unref( pProxy );
    g_object_unref( pBus );
    return true;
}

#else // LL_GLIB
bool LLAppViewerLinux::initSLURLHandler()
{
    return false; // not implemented without dbus
}
bool LLAppViewerLinux::sendURLToOtherInstance(const std::string& url)
{
    return false; // not implemented without dbus
}
#endif // LL_GLIB

void LLAppViewerLinux::initCrashReporting(bool reportFreeze)
{
    std::string cmd =gDirUtilp->getExecutableDir();
    cmd += gDirUtilp->getDirDelimiter();
//#if LL_LINUX
    cmd += "linux-crash-logger.bin";
/*
#else
# error Unknown platform
#endif
*/

    std::stringstream pid_str;
    pid_str <<  LLApp::getPid();
    std::string logdir = gDirUtilp->getExpandedFilename(LL_PATH_DUMP, "");
    std::string appname = gDirUtilp->getExecutableFilename();
    std::string grid{ LLGridManager::getInstance()->getGridId() };
    std::string title{ LLAppViewer::instance()->getSecondLifeTitle() };
    std::string pidstr{ pid_str.str() };
    // launch the actual crash logger
    const char * cmdargv[] =
        {cmd.c_str(),
         "-user",
         grid.c_str(),
         "-name",
         title.c_str(),
         "-pid",
         pidstr.c_str(),
         "-dumpdir",
         logdir.c_str(),
         "-procname",
         appname.c_str(),
         NULL};
    fflush(NULL);

    pid_t pid = fork();
    if (pid == 0)
    { // child
        execv(cmd.c_str(), (char* const*) cmdargv);     /* Flawfinder: ignore */
        LL_WARNS() << "execv failure when trying to start " << cmd << LL_ENDL;
        _exit(1); // avoid atexit()
    }
    else
    {
        if (pid > 0)
        {
            // DO NOT wait for child proc to die; we want
            // the logger to outlive us while we quit to
            // free up the screen/keyboard/etc.
            ////int childExitStatus;
            ////waitpid(pid, &childExitStatus, 0);
        }
        else
        {
            LL_WARNS() << "fork failure." << LL_ENDL;
        }
    }
    // Sometimes signals don't seem to quit the viewer.  Also, we may
    // have been called explicitly instead of from a signal handler.
    // Make sure we exit so as to not totally confuse the user.
    //_exit(1); // avoid atexit(), else we may re-crash in dtors.
}

bool LLAppViewerLinux::beingDebugged()
{
    static enum {unknown, no, yes} debugged = unknown;

    if (debugged == unknown)
    {
        pid_t ppid = getppid();
        char *name;
        int ret;

        ret = asprintf(&name, "/proc/%d/exe", ppid);
        if (ret != -1)
        {
            char buf[1024];
            ssize_t n;

            n = readlink(name, buf, sizeof(buf) - 1);
            if (n != -1)
            {
                char *base = strrchr(buf, '/');
                buf[n + 1] = '\0';
                if (base == NULL)
                {
                    base = buf;
                } else {
                    base += 1;
                }

                if (strcmp(base, "gdb") == 0)
                {
                    debugged = yes;
                }
            }
            free(name);
        }
    }

    return debugged == yes;
}

void LLAppViewerLinux::initLoggingAndGetLastDuration()
{
    // Remove the last stack trace, if any
    // This file is no longer created, since the move to Google Breakpad
    // The code is left here to clean out any old state in the log dir
    std::string old_stack_file =
        gDirUtilp->getExpandedFilename(LL_PATH_LOGS,"stack_trace.log");
    LLFile::remove(old_stack_file);

    LLAppViewer::initLoggingAndGetLastDuration();
}

bool LLAppViewerLinux::initParseCommandLine(LLCommandLineParser& clp)
{
    if (!clp.parseCommandLine(gArgC, gArgV))
    {
        return false;
    }

    // Find the system language.
    FL_Locale *locale = NULL;
    FL_Success success = FL_FindLocale(&locale, FL_MESSAGES);
    if (success != 0)
    {
        if (success >= 2 && locale->lang) // confident!
        {
            LL_INFOS("AppInit") << "Language " << ll_safe_string(locale->lang) << LL_ENDL;
            LL_INFOS("AppInit") << "Location " << ll_safe_string(locale->country) << LL_ENDL;
            LL_INFOS("AppInit") << "Variant " << ll_safe_string(locale->variant) << LL_ENDL;

            LLControlVariable* c = gSavedSettings.getControl("SystemLanguage");
            if(c)
            {
                c->setValue(std::string(locale->lang), false);
            }
        }
    }
    FL_FreeLocale(&locale);

    return true;
}

std::string LLAppViewerLinux::generateSerialNumber()
{
    char serial_md5[MD5HEX_STR_SIZE];
    serial_md5[0] = 0;
    std::string best;
    std::string uuiddir("/dev/disk/by-uuid/");

    // trawl /dev/disk/by-uuid looking for a good-looking UUID to grab
    std::string this_name;

    LLDirIterator iter(uuiddir, "*");
    while (iter.next(this_name))
    {
        if (this_name.length() > best.length() ||
            (this_name.length() == best.length() &&
             this_name > best))
        {
            // longest (and secondarily alphabetically last) so far
            best = this_name;
        }
    }

    // we don't return the actual serial number, just a hash of it.
    LLMD5 md5( reinterpret_cast<const unsigned char*>(best.c_str()) );
    md5.hex_digest(serial_md5);

    return serial_md5;
}