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/**
* Copyright (C) 2015 MongoDB Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the GNU Affero General Public License in all respects
* for all of the code used other than as permitted herein. If you modify
* file(s) with this exception, you may extend this exception to your
* version of the file(s), but you are not obligated to do so. If you do not
* wish to do so, delete this exception statement from your version. If you
* delete this exception statement from all source files in the program,
* then also delete it in the license file.
*/
#include "mongo/platform/basic.h"
#include "mongo/scripting/mozjs/mongo.h"
#include "mongo/client/dbclientinterface.h"
#include "mongo/client/global_conn_pool.h"
#include "mongo/client/native_sasl_client_session.h"
#include "mongo/client/sasl_client_authenticate.h"
#include "mongo/client/sasl_client_session.h"
#include "mongo/db/namespace_string.h"
#include "mongo/scripting/mozjs/cursor.h"
#include "mongo/scripting/mozjs/implscope.h"
#include "mongo/scripting/mozjs/objectwrapper.h"
#include "mongo/scripting/mozjs/valuereader.h"
#include "mongo/scripting/mozjs/valuewriter.h"
#include "mongo/stdx/memory.h"
namespace mongo {
namespace mozjs {
const JSFunctionSpec MongoBase::methods[] = {
MONGO_ATTACH_JS_FUNCTION(auth),
MONGO_ATTACH_JS_FUNCTION(copyDatabaseWithSCRAM),
MONGO_ATTACH_JS_FUNCTION(cursorFromId),
MONGO_ATTACH_JS_FUNCTION(cursorHandleFromId),
MONGO_ATTACH_JS_FUNCTION(find),
MONGO_ATTACH_JS_FUNCTION(getClientRPCProtocols),
MONGO_ATTACH_JS_FUNCTION(getServerRPCProtocols),
MONGO_ATTACH_JS_FUNCTION(insert),
MONGO_ATTACH_JS_FUNCTION(logout),
MONGO_ATTACH_JS_FUNCTION(remove),
MONGO_ATTACH_JS_FUNCTION(runCommand),
MONGO_ATTACH_JS_FUNCTION(runCommandWithMetadata),
MONGO_ATTACH_JS_FUNCTION(setClientRPCProtocols),
MONGO_ATTACH_JS_FUNCTION(update),
JS_FS_END,
};
const char* const MongoBase::className = "Mongo";
const JSFunctionSpec MongoExternalInfo::freeFunctions[4] = {
MONGO_ATTACH_JS_FUNCTION(_forgetReplSet),
MONGO_ATTACH_JS_FUNCTION(load),
MONGO_ATTACH_JS_FUNCTION(quit),
JS_FS_END,
};
namespace {
DBClientBase* getConnection(JS::CallArgs& args) {
return static_cast<std::shared_ptr<DBClientBase>*>(JS_GetPrivate(args.thisv().toObjectOrNull()))
->get();
}
void setCursor(JS::HandleObject target,
std::unique_ptr<DBClientCursor> cursor,
JS::CallArgs& args) {
auto client =
static_cast<std::shared_ptr<DBClientBase>*>(JS_GetPrivate(args.thisv().toObjectOrNull()));
// Copy the client shared pointer to up the refcount
JS_SetPrivate(target, new CursorInfo::CursorHolder(std::move(cursor), *client));
}
void setCursorHandle(JS::HandleObject target, long long cursorId, JS::CallArgs& args) {
auto client =
static_cast<std::shared_ptr<DBClientBase>*>(JS_GetPrivate(args.thisv().toObjectOrNull()));
// Copy the client shared pointer to up the refcount.
JS_SetPrivate(target, new CursorHandleInfo::CursorTracker(cursorId, *client));
}
} // namespace
void MongoBase::finalize(JSFreeOp* fop, JSObject* obj) {
auto conn = static_cast<std::shared_ptr<DBClientBase>*>(JS_GetPrivate(obj));
if (conn) {
delete conn;
}
}
void MongoBase::Functions::runCommand(JSContext* cx, JS::CallArgs args) {
if (args.length() != 3)
uasserted(ErrorCodes::BadValue, "runCommand needs 3 args");
if (!args.get(0).isString())
uasserted(ErrorCodes::BadValue, "the database parameter to runCommand must be a string");
if (!args.get(1).isObject())
uasserted(ErrorCodes::BadValue, "the cmdObj parameter to runCommand must be an object");
if (!args.get(2).isNumber())
uasserted(ErrorCodes::BadValue, "the options parameter to runCommand must be a number");
auto conn = getConnection(args);
std::string database = ValueWriter(cx, args.get(0)).toString();
BSONObj cmdObj = ValueWriter(cx, args.get(1)).toBSON();
int queryOptions = ValueWriter(cx, args.get(2)).toInt32();
BSONObj cmdRes;
conn->runCommand(database, cmdObj, cmdRes, queryOptions);
// the returned object is not read only as some of our tests depend on modifying it.
ValueReader(cx, args.rval()).fromBSON(cmdRes, false /* read only */);
}
void MongoBase::Functions::runCommandWithMetadata(JSContext* cx, JS::CallArgs args) {
if (args.length() != 4)
uasserted(ErrorCodes::BadValue, "runCommandWithMetadata needs 4 args");
if (!args.get(0).isString())
uasserted(ErrorCodes::BadValue,
"the database parameter to runCommandWithMetadata must be a string");
if (!args.get(1).isString())
uasserted(ErrorCodes::BadValue,
"the commandName parameter to runCommandWithMetadata must be a string");
if (!args.get(2).isObject())
uasserted(ErrorCodes::BadValue,
"the metadata argument to runCommandWithMetadata must be an object");
if (!args.get(3).isObject())
uasserted(ErrorCodes::BadValue,
"the commandArgs argument to runCommandWithMetadata must be an object");
std::string database = ValueWriter(cx, args.get(0)).toString();
std::string commandName = ValueWriter(cx, args.get(1)).toString();
BSONObj metadata = ValueWriter(cx, args.get(2)).toBSON();
BSONObj commandArgs = ValueWriter(cx, args.get(3)).toBSON();
auto conn = getConnection(args);
auto res = conn->runCommandWithMetadata(database, commandName, metadata, commandArgs);
BSONObjBuilder mergedResultBob;
mergedResultBob.append("commandReply", res->getCommandReply());
mergedResultBob.append("metadata", res->getMetadata());
auto mergedResult = mergedResultBob.done();
ValueReader(cx, args.rval()).fromBSON(mergedResult, false);
}
void MongoBase::Functions::find(JSContext* cx, JS::CallArgs args) {
auto scope = getScope(cx);
if (args.length() != 7)
uasserted(ErrorCodes::BadValue, "find needs 7 args");
if (!args.get(1).isObject())
uasserted(ErrorCodes::BadValue, "needs to be an object");
auto conn = getConnection(args);
std::string ns = ValueWriter(cx, args.get(0)).toString();
BSONObj fields;
BSONObj q = ValueWriter(cx, args.get(1)).toBSON();
bool haveFields = false;
if (args.get(2).isObject()) {
size_t i = 0;
JS::RootedObject obj(cx, args.get(2).toObjectOrNull());
ObjectWrapper(cx, obj).enumerate([&i](jsid) { ++i; });
if (i > 0)
haveFields = true;
}
if (haveFields)
fields = ValueWriter(cx, args.get(2)).toBSON();
int nToReturn = ValueWriter(cx, args.get(3)).toInt32();
int nToSkip = ValueWriter(cx, args.get(4)).toInt32();
int batchSize = ValueWriter(cx, args.get(5)).toInt32();
int options = ValueWriter(cx, args.get(6)).toInt32();
std::unique_ptr<DBClientCursor> cursor(
conn->query(ns, q, nToReturn, nToSkip, haveFields ? &fields : NULL, options, batchSize));
if (!cursor.get()) {
uasserted(ErrorCodes::InternalError, "error doing query: failed");
}
JS::RootedObject c(cx);
scope->getCursorProto().newInstance(&c);
setCursor(c, std::move(cursor), args);
args.rval().setObjectOrNull(c);
}
void MongoBase::Functions::insert(JSContext* cx, JS::CallArgs args) {
auto scope = getScope(cx);
if (args.length() != 3)
uasserted(ErrorCodes::BadValue, "insert needs 3 args");
if (!args.get(1).isObject())
uasserted(ErrorCodes::BadValue, "attempted to insert a non-object");
ObjectWrapper o(cx, args.thisv());
if (o.hasField("readOnly") && o.getBoolean("readOnly"))
uasserted(ErrorCodes::BadValue, "js db in read only mode");
auto conn = getConnection(args);
std::string ns = ValueWriter(cx, args.get(0)).toString();
int flags = ValueWriter(cx, args.get(2)).toInt32();
auto addId = [cx, scope](JS::HandleValue value) {
if (!value.isObject())
uasserted(ErrorCodes::BadValue, "attempted to insert a non-object type");
JS::RootedObject elementObj(cx, value.toObjectOrNull());
ObjectWrapper ele(cx, elementObj);
if (!ele.hasField("_id")) {
JS::RootedValue value(cx);
scope->getOidProto().newInstance(&value);
ele.setValue("_id", value);
}
return ValueWriter(cx, value).toBSON();
};
if (args.get(1).isObject() && JS_IsArrayObject(cx, args.get(1))) {
JS::RootedObject obj(cx, args.get(1).toObjectOrNull());
ObjectWrapper array(cx, obj);
std::vector<BSONObj> bos;
bool foundElement = false;
array.enumerate([&](JS::HandleId id) {
foundElement = true;
JS::RootedValue value(cx);
array.getValue(id, &value);
bos.push_back(addId(value));
});
if (!foundElement)
uasserted(ErrorCodes::BadValue, "attempted to insert an empty array");
conn->insert(ns, bos, flags);
} else {
conn->insert(ns, addId(args.get(1)));
}
args.rval().setUndefined();
}
void MongoBase::Functions::remove(JSContext* cx, JS::CallArgs args) {
if (!(args.length() == 2 || args.length() == 3))
uasserted(ErrorCodes::BadValue, "remove needs 2 or 3 args");
if (!(args.get(1).isObject()))
uasserted(ErrorCodes::BadValue, "attempted to remove a non-object");
ObjectWrapper o(cx, args.thisv());
if (o.hasField("readOnly") && o.getBoolean("readOnly"))
uasserted(ErrorCodes::BadValue, "js db in read only mode");
auto conn = getConnection(args);
std::string ns = ValueWriter(cx, args.get(0)).toString();
BSONObj bson = ValueWriter(cx, args.get(1)).toBSON();
bool justOne = false;
if (args.length() > 2) {
justOne = args.get(2).toBoolean();
}
conn->remove(ns, bson, justOne);
args.rval().setUndefined();
}
void MongoBase::Functions::update(JSContext* cx, JS::CallArgs args) {
if (args.length() < 3)
uasserted(ErrorCodes::BadValue, "update needs at least 3 args");
if (!args.get(1).isObject())
uasserted(ErrorCodes::BadValue, "1st param to update has to be an object");
if (!args.get(2).isObject())
uasserted(ErrorCodes::BadValue, "2nd param to update has to be an object");
ObjectWrapper o(cx, args.thisv());
if (o.hasField("readOnly") && o.getBoolean("readOnly"))
uasserted(ErrorCodes::BadValue, "js db in read only mode");
auto conn = getConnection(args);
std::string ns = ValueWriter(cx, args.get(0)).toString();
BSONObj q1 = ValueWriter(cx, args.get(1)).toBSON();
BSONObj o1 = ValueWriter(cx, args.get(2)).toBSON();
bool upsert = args.length() > 3 && args.get(3).isBoolean() && args.get(3).toBoolean();
bool multi = args.length() > 4 && args.get(4).isBoolean() && args.get(4).toBoolean();
conn->update(ns, q1, o1, upsert, multi);
args.rval().setUndefined();
}
void MongoBase::Functions::auth(JSContext* cx, JS::CallArgs args) {
auto conn = getConnection(args);
if (!conn)
uasserted(ErrorCodes::BadValue, "no connection");
BSONObj params;
switch (args.length()) {
case 1:
params = ValueWriter(cx, args.get(0)).toBSON();
break;
case 3:
params = BSON(saslCommandMechanismFieldName
<< "MONGODB-CR" << saslCommandUserDBFieldName
<< ValueWriter(cx, args[0]).toString() << saslCommandUserFieldName
<< ValueWriter(cx, args[1]).toString() << saslCommandPasswordFieldName
<< ValueWriter(cx, args[2]).toString());
break;
default:
uasserted(ErrorCodes::BadValue, "mongoAuth takes 1 object or 3 string arguments");
}
conn->auth(params);
args.rval().setBoolean(true);
}
void MongoBase::Functions::logout(JSContext* cx, JS::CallArgs args) {
if (args.length() != 1)
uasserted(ErrorCodes::BadValue, "logout needs 1 arg");
BSONObj ret;
std::string db = ValueWriter(cx, args.get(0)).toString();
auto conn = getConnection(args);
if (conn) {
conn->logout(db, ret);
}
ValueReader(cx, args.rval()).fromBSON(ret, false);
}
void MongoBase::Functions::cursorFromId(JSContext* cx, JS::CallArgs args) {
auto scope = getScope(cx);
if (!(args.length() == 2 || args.length() == 3))
uasserted(ErrorCodes::BadValue, "cursorFromId needs 2 or 3 args");
if (!scope->getNumberLongProto().instanceOf(args.get(1)))
uasserted(ErrorCodes::BadValue, "2nd arg must be a NumberLong");
if (!(args.get(2).isNumber() || args.get(2).isUndefined()))
uasserted(ErrorCodes::BadValue, "3rd arg must be a js Number");
auto conn = getConnection(args);
std::string ns = ValueWriter(cx, args.get(0)).toString();
long long cursorId = NumberLongInfo::ToNumberLong(cx, args.get(1));
auto cursor = stdx::make_unique<DBClientCursor>(conn, ns, cursorId, 0, 0);
if (args.get(2).isNumber())
cursor->setBatchSize(ValueWriter(cx, args.get(2)).toInt32());
JS::RootedObject c(cx);
scope->getCursorProto().newInstance(&c);
setCursor(c, std::move(cursor), args);
args.rval().setObjectOrNull(c);
}
void MongoBase::Functions::cursorHandleFromId(JSContext* cx, JS::CallArgs args) {
auto scope = getScope(cx);
if (args.length() != 1) {
uasserted(ErrorCodes::BadValue, "cursorHandleFromId needs 1 arg");
}
if (!scope->getNumberLongProto().instanceOf(args.get(0))) {
uasserted(ErrorCodes::BadValue, "1st arg must be a NumberLong");
}
long long cursorId = NumberLongInfo::ToNumberLong(cx, args.get(0));
JS::RootedObject c(cx);
scope->getCursorHandleProto().newInstance(&c);
setCursorHandle(c, cursorId, args);
args.rval().setObjectOrNull(c);
}
void MongoBase::Functions::copyDatabaseWithSCRAM(JSContext* cx, JS::CallArgs args) {
auto conn = getConnection(args);
if (!conn)
uasserted(ErrorCodes::BadValue, "no connection");
if (args.length() != 5)
uasserted(ErrorCodes::BadValue, "copyDatabase needs 5 arg");
// copyDatabase(fromdb, todb, fromhost, username, password);
std::string fromDb = ValueWriter(cx, args.get(0)).toString();
std::string toDb = ValueWriter(cx, args.get(1)).toString();
std::string fromHost = ValueWriter(cx, args.get(2)).toString();
std::string user = ValueWriter(cx, args.get(3)).toString();
std::string password = ValueWriter(cx, args.get(4)).toString();
std::string hashedPwd = DBClientWithCommands::createPasswordDigest(user, password);
std::unique_ptr<SaslClientSession> session(new NativeSaslClientSession());
session->setParameter(SaslClientSession::parameterMechanism, "SCRAM-SHA-1");
session->setParameter(SaslClientSession::parameterUser, user);
session->setParameter(SaslClientSession::parameterPassword, hashedPwd);
session->initialize();
BSONObj saslFirstCommandPrefix =
BSON("copydbsaslstart" << 1 << "fromhost" << fromHost << "fromdb" << fromDb
<< saslCommandMechanismFieldName << "SCRAM-SHA-1");
BSONObj saslFollowupCommandPrefix =
BSON("copydb" << 1 << "fromhost" << fromHost << "fromdb" << fromDb << "todb" << toDb);
BSONObj saslCommandPrefix = saslFirstCommandPrefix;
BSONObj inputObj = BSON(saslCommandPayloadFieldName << "");
bool isServerDone = false;
while (!session->isDone()) {
std::string payload;
BSONType type;
Status status = saslExtractPayload(inputObj, &payload, &type);
uassertStatusOK(status);
std::string responsePayload;
status = session->step(payload, &responsePayload);
uassertStatusOK(status);
BSONObjBuilder commandBuilder;
commandBuilder.appendElements(saslCommandPrefix);
commandBuilder.appendBinData(saslCommandPayloadFieldName,
static_cast<int>(responsePayload.size()),
BinDataGeneral,
responsePayload.c_str());
BSONElement conversationId = inputObj[saslCommandConversationIdFieldName];
if (!conversationId.eoo())
commandBuilder.append(conversationId);
BSONObj command = commandBuilder.obj();
bool ok = conn->runCommand("admin", command, inputObj);
ErrorCodes::Error code =
ErrorCodes::fromInt(inputObj[saslCommandCodeFieldName].numberInt());
if (!ok || code != ErrorCodes::OK) {
if (code == ErrorCodes::OK)
code = ErrorCodes::UnknownError;
ValueReader(cx, args.rval()).fromBSON(inputObj, true);
return;
}
isServerDone = inputObj[saslCommandDoneFieldName].trueValue();
saslCommandPrefix = saslFollowupCommandPrefix;
}
if (!isServerDone) {
uasserted(ErrorCodes::InternalError, "copydb client finished before server.");
}
ValueReader(cx, args.rval()).fromBSON(inputObj, true);
}
void MongoBase::Functions::getClientRPCProtocols(JSContext* cx, JS::CallArgs args) {
auto conn = getConnection(args);
if (args.length() != 0)
uasserted(ErrorCodes::BadValue, "getClientRPCProtocols takes no args");
auto clientRPCProtocols = rpc::toString(conn->getClientRPCProtocols());
uassertStatusOK(clientRPCProtocols);
auto protoStr = clientRPCProtocols.getValue().toString();
ValueReader(cx, args.rval()).fromStringData(protoStr);
}
void MongoBase::Functions::setClientRPCProtocols(JSContext* cx, JS::CallArgs args) {
auto conn = getConnection(args);
if (args.length() != 1)
uasserted(ErrorCodes::BadValue, "setClientRPCProtocols needs 1 arg");
if (!args.get(0).isString())
uasserted(ErrorCodes::BadValue, "first argument to setClientRPCProtocols must be a string");
std::string rpcProtosStr = ValueWriter(cx, args.get(0)).toString();
auto clientRPCProtocols = rpc::parseProtocolSet(rpcProtosStr);
uassertStatusOK(clientRPCProtocols);
conn->setClientRPCProtocols(clientRPCProtocols.getValue());
args.rval().setUndefined();
}
void MongoBase::Functions::getServerRPCProtocols(JSContext* cx, JS::CallArgs args) {
auto conn = getConnection(args);
if (args.length() != 0)
uasserted(ErrorCodes::BadValue, "getServerRPCProtocols takes no args");
auto serverRPCProtocols = rpc::toString(conn->getServerRPCProtocols());
uassertStatusOK(serverRPCProtocols);
auto protoStr = serverRPCProtocols.getValue().toString();
ValueReader(cx, args.rval()).fromStringData(protoStr);
}
void MongoLocalInfo::construct(JSContext* cx, JS::CallArgs args) {
auto scope = getScope(cx);
if (args.length() != 0)
uasserted(ErrorCodes::BadValue, "local Mongo constructor takes no args");
std::unique_ptr<DBClientBase> conn;
conn.reset(createDirectClient(scope->getOpContext()));
JS::RootedObject thisv(cx);
scope->getMongoLocalProto().newObject(&thisv);
ObjectWrapper o(cx, thisv);
JS_SetPrivate(thisv, new std::shared_ptr<DBClientBase>(conn.release()));
o.setBoolean("slaveOk", false);
o.setString("host", "EMBEDDED");
args.rval().setObjectOrNull(thisv);
}
void MongoExternalInfo::construct(JSContext* cx, JS::CallArgs args) {
auto scope = getScope(cx);
std::string host("127.0.0.1");
if (args.length() > 0 && args.get(0).isString()) {
host = ValueWriter(cx, args.get(0)).toString();
}
auto statusWithHost = ConnectionString::parse(host);
uassertStatusOK(statusWithHost);
const ConnectionString cs(statusWithHost.getValue());
std::string errmsg;
std::unique_ptr<DBClientBase> conn(cs.connect(errmsg));
if (!conn.get()) {
uasserted(ErrorCodes::InternalError, errmsg);
}
JS::RootedObject thisv(cx);
scope->getMongoExternalProto().newObject(&thisv);
ObjectWrapper o(cx, thisv);
JS_SetPrivate(thisv, new std::shared_ptr<DBClientBase>(conn.release()));
o.setBoolean("slaveOk", false);
o.setString("host", host);
args.rval().setObjectOrNull(thisv);
}
void MongoExternalInfo::Functions::load(JSContext* cx, JS::CallArgs args) {
auto scope = getScope(cx);
for (unsigned i = 0; i < args.length(); ++i) {
std::string filename = ValueWriter(cx, args.get(i)).toString();
if (!scope->execFile(filename, false, true)) {
uasserted(ErrorCodes::BadValue, std::string("error loading js file: ") + filename);
}
}
args.rval().setBoolean(true);
}
void MongoExternalInfo::Functions::quit(JSContext* cx, JS::CallArgs args) {
auto scope = getScope(cx);
scope->setQuickExit(args.get(0).isNumber() ? args.get(0).toNumber() : 0);
uasserted(ErrorCodes::JSUncatchableError, "Calling Quit");
}
void MongoExternalInfo::Functions::_forgetReplSet(JSContext* cx, JS::CallArgs args) {
if (args.length() != 1) {
uasserted(ErrorCodes::BadValue,
str::stream() << "_forgetReplSet takes exactly 1 argument, but was given "
<< args.length());
}
std::string rsName = ValueWriter(cx, args.get(0)).toString();
globalRSMonitorManager.removeMonitor(rsName);
args.rval().setUndefined();
}
} // namespace mozjs
} // namespace mongo
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