void processAndLogNewSpawnException(SpawnException &e, const Options &options,
ResourceLocator &resourceLocator, RandomGenerator &randomGenerator)
{
ErrorRenderer renderer(resourceLocator);
string errorId = randomGenerator.generateHexString(4);
string appMessage = e.getErrorPage();
char filename[PATH_MAX];
stringstream stream;
e.set("ERROR_ID", errorId);
if (appMessage.empty()) {
appMessage = "none";
}
try {
int fd = -1;
FdGuard guard(fd, true);
string errorPage;
errorPage = renderer.renderWithDetails(appMessage, options, &e);
#if defined(__linux__) || defined(__APPLE__) || defined(__FreeBSD__)
snprintf(filename, PATH_MAX, "%s/passenger-error-XXXXXX.html",
getSystemTempDir());
fd = mkstemps(filename, sizeof(".html") - 1);
#else
snprintf(filename, PATH_MAX, "%s/passenger-error.XXXXXX",
getSystemTempDir());
fd = mkstemp(filename);
#endif
if (fd == -1) {
int e = errno;
throw SystemException("Cannot generate a temporary filename",
e);
}
writeExact(fd, errorPage);
} catch (const SystemException &e2) {
filename[0] = '\0';
P_ERROR("Cannot render an error page: " << e2.what() << "\n" <<
e2.backtrace());
}
stream << "Could not spawn process for application " << options.appRoot <<
": " << e.what() << "\n" <<
" Error ID: " << errorId << "\n";
if (filename[0] != '\0') {
stream << " Error details saved to: " << filename << "\n";
}
stream << " Message from application: " << appMessage << "\n";
P_ERROR(stream.str());
}
void processAndLogNewSpawnException(SpawnException &e, const Options &options,
const SpawningKit::ConfigPtr &config)
{
TRACE_POINT();
UnionStation::TransactionPtr transaction;
ErrorRenderer renderer(*config->resourceLocator);
string appMessage = e.getErrorPage();
string errorId;
char filename[PATH_MAX];
stringstream stream;
if (options.analytics && config->unionStationCore != NULL) {
try {
UPDATE_TRACE_POINT();
transaction = config->unionStationCore->newTransaction(
options.getAppGroupName(),
"exceptions",
options.unionStationKey);
errorId = transaction->getTxnId();
} catch (const tracable_exception &e2) {
transaction.reset();
P_WARN("Cannot log to Union Station: " << e2.what() <<
"\n Backtrace:\n" << e2.backtrace());
}
}
UPDATE_TRACE_POINT();
if (appMessage.empty()) {
appMessage = "none";
}
if (errorId.empty()) {
errorId = config->randomGenerator->generateHexString(4);
}
e.set("error_id", errorId);
try {
int fd = -1;
string errorPage;
UPDATE_TRACE_POINT();
errorPage = renderer.renderWithDetails(appMessage, options, &e);
#if (defined(__linux__) && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 11))) || defined(__APPLE__) || defined(__FreeBSD__)
snprintf(filename, PATH_MAX, "%s/passenger-error-XXXXXX.html",
getSystemTempDir());
fd = mkstemps(filename, sizeof(".html") - 1);
#else
snprintf(filename, PATH_MAX, "%s/passenger-error.XXXXXX",
getSystemTempDir());
fd = mkstemp(filename);
#endif
FdGuard guard(fd, NULL, 0, true);
if (fd == -1) {
int e = errno;
throw SystemException("Cannot generate a temporary filename",
e);
}
UPDATE_TRACE_POINT();
writeExact(fd, errorPage);
} catch (const SystemException &e2) {
filename[0] = '\0';
P_ERROR("Cannot render an error page: " << e2.what() << "\n" <<
e2.backtrace());
}
if (transaction != NULL) {
try {
UPDATE_TRACE_POINT();
transaction->message("Context: spawning");
transaction->message("Message: " +
jsonString(e.what()));
transaction->message("App message: " +
jsonString(appMessage));
const char *kind;
switch (e.getErrorKind()) {
case SpawnException::PRELOADER_STARTUP_ERROR:
kind = "PRELOADER_STARTUP_ERROR";
break;
case SpawnException::PRELOADER_STARTUP_PROTOCOL_ERROR:
kind = "PRELOADER_STARTUP_PROTOCOL_ERROR";
break;
case SpawnException::PRELOADER_STARTUP_TIMEOUT:
kind = "PRELOADER_STARTUP_TIMEOUT";
break;
case SpawnException::PRELOADER_STARTUP_EXPLAINABLE_ERROR:
kind = "PRELOADER_STARTUP_EXPLAINABLE_ERROR";
break;
case SpawnException::APP_STARTUP_ERROR:
kind = "APP_STARTUP_ERROR";
break;
case SpawnException::APP_STARTUP_PROTOCOL_ERROR:
kind = "APP_STARTUP_PROTOCOL_ERROR";
break;
case SpawnException::APP_STARTUP_TIMEOUT:
kind = "APP_STARTUP_TIMEOUT";
break;
case SpawnException::APP_STARTUP_EXPLAINABLE_ERROR:
kind = "APP_STARTUP_EXPLAINABLE_ERROR";
break;
default:
kind = "UNDEFINED_ERROR";
break;
}
transaction->message(string("Kind: ") + kind);
Json::Value details;
const map<string, string> &annotations = e.getAnnotations();
map<string, string>::const_iterator it, end = annotations.end();
for (it = annotations.begin(); it != end; it++) {
details[it->first] = it->second;
}
// This information is not very useful. Union Station
// already collects system metrics.
details.removeMember("system_metrics");
// Don't include environment variables because they may
// contain sensitive information.
details.removeMember("envvars");
transaction->message("Details: " + stringifyJson(details));
} catch (const tracable_exception &e2) {
P_WARN("Cannot log to Union Station: " << e2.what() <<
"\n Backtrace:\n" << e2.backtrace());
}
}
UPDATE_TRACE_POINT();
stream << "Could not spawn process for application " << options.appRoot <<
": " << e.what() << "\n" <<
" Error ID: " << errorId << "\n";
if (filename[0] != '\0') {
stream << " Error details saved to: " << filename << "\n";
}
stream << " Message from application: " << appMessage << "\n";
P_ERROR(stream.str());
if (config->agentsOptions != NULL) {
HookScriptOptions hOptions;
hOptions.name = "spawn_failed";
hOptions.spec = config->agentsOptions->get("hook_spawn_failed", false);
hOptions.agentsOptions = config->agentsOptions;
hOptions.environment.push_back(make_pair("PASSENGER_APP_ROOT", options.appRoot));
hOptions.environment.push_back(make_pair("PASSENGER_APP_GROUP_NAME", options.getAppGroupName()));
hOptions.environment.push_back(make_pair("PASSENGER_ERROR_MESSAGE", e.what()));
hOptions.environment.push_back(make_pair("PASSENGER_ERROR_ID", errorId));
hOptions.environment.push_back(make_pair("PASSENGER_APP_ERROR_MESSAGE", appMessage));
oxt::thread(boost::bind(runHookScripts, hOptions),
"Hook: spawn_failed", 256 * 1024);
}
}