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refactor(NODE-3356): Update command monitoring logging #2853

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Jun 24, 2021
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122 changes: 122 additions & 0 deletions lib/command_utils.js
Original file line number Diff line number Diff line change
@@ -0,0 +1,122 @@
'use strict';
const Msg = require('./core/connection/msg').Msg;
const KillCursor = require('./core/connection/commands').KillCursor;
const GetMore = require('./core/connection/commands').GetMore;

/** Commands that we want to redact because of the sensitive nature of their contents */
const SENSITIVE_COMMANDS = new Set([
'authenticate',
'saslStart',
'saslContinue',
'getnonce',
'createUser',
'updateUser',
'copydbgetnonce',
'copydbsaslstart',
'copydb'
]);

const HELLO_COMMANDS = new Set(['hello', 'ismaster', 'isMaster']);

const LEGACY_FIND_QUERY_MAP = {
$query: 'filter',
$orderby: 'sort',
$hint: 'hint',
$comment: 'comment',
$maxScan: 'maxScan',
$max: 'max',
$min: 'min',
$returnKey: 'returnKey',
$showDiskLoc: 'showRecordId',
$maxTimeMS: 'maxTimeMS',
$snapshot: 'snapshot'
};

const LEGACY_FIND_OPTIONS_MAP = {
numberToSkip: 'skip',
numberToReturn: 'batchSize',
returnFieldsSelector: 'projection'
};

const OP_QUERY_KEYS = [
'tailable',
'oplogReplay',
'noCursorTimeout',
'awaitData',
'partial',
'exhaust'
];

const collectionName = command => command.ns.split('.')[1];

const shouldRedactCommand = (commandName, cmd) =>
SENSITIVE_COMMANDS.has(commandName) ||
(HELLO_COMMANDS.has(commandName) && !!cmd.speculativeAuthenticate);

/**
* Extract the actual command from the query, possibly upconverting if it's a legacy
* format
*
* @param {Object} command the command
*/
const extractCommand = command => {
let extractedCommand;
if (command instanceof GetMore) {
extractedCommand = {
getMore: command.cursorId,
collection: collectionName(command),
batchSize: command.numberToReturn
};
} else if (command instanceof KillCursor) {
extractedCommand = {
killCursors: collectionName(command),
cursors: command.cursorIds
};
} else if (command instanceof Msg) {
extractedCommand = command.command;
} else if (command.query && command.query.$query) {
let result;
if (command.ns === 'admin.$cmd') {
// upconvert legacy command
result = Object.assign({}, command.query.$query);
} else {
// upconvert legacy find command
result = { find: collectionName(command) };
Object.keys(LEGACY_FIND_QUERY_MAP).forEach(key => {
if (typeof command.query[key] !== 'undefined')
result[LEGACY_FIND_QUERY_MAP[key]] = command.query[key];
});
}

Object.keys(LEGACY_FIND_OPTIONS_MAP).forEach(key => {
if (typeof command[key] !== 'undefined') result[LEGACY_FIND_OPTIONS_MAP[key]] = command[key];
});

OP_QUERY_KEYS.forEach(key => {
if (command[key]) result[key] = command[key];
});

if (typeof command.pre32Limit !== 'undefined') {
result.limit = command.pre32Limit;
}

if (command.query.$explain) {
extractedCommand = { explain: result };
} else {
extractedCommand = result;
}
} else {
extractedCommand = command.query || command;
}

const commandName = Object.keys(extractedCommand)[0];
return {
cmd: extractedCommand,
name: commandName,
shouldRedact: shouldRedactCommand(commandName, extractedCommand)
};
};

module.exports = {
extractCommand
};
133 changes: 10 additions & 123 deletions lib/core/connection/apm.js
Original file line number Diff line number Diff line change
@@ -1,129 +1,16 @@
'use strict';
const Msg = require('../connection/msg').Msg;
const KillCursor = require('../connection/commands').KillCursor;
const GetMore = require('../connection/commands').GetMore;
const calculateDurationInMs = require('../../utils').calculateDurationInMs;

/** Commands that we want to redact because of the sensitive nature of their contents */
const SENSITIVE_COMMANDS = new Set([
'authenticate',
'saslStart',
'saslContinue',
'getnonce',
'createUser',
'updateUser',
'copydbgetnonce',
'copydbsaslstart',
'copydb'
]);

const HELLO_COMMANDS = new Set(['hello', 'ismaster', 'isMaster']);
const extractCommand = require('../../command_utils').extractCommand;

// helper methods
const extractCommandName = commandDoc => Object.keys(commandDoc)[0];
const namespace = command => command.ns;
const databaseName = command => command.ns.split('.')[0];
const collectionName = command => command.ns.split('.')[1];
const generateConnectionId = pool =>
pool.options ? `${pool.options.host}:${pool.options.port}` : pool.address;
const maybeRedact = (commandName, cmd, result) =>
SENSITIVE_COMMANDS.has(commandName) ||
(HELLO_COMMANDS.has(commandName) && cmd.speculativeAuthenticate)
? {}
: result;
const isLegacyPool = pool => pool.s && pool.queue;

const LEGACY_FIND_QUERY_MAP = {
$query: 'filter',
$orderby: 'sort',
$hint: 'hint',
$comment: 'comment',
$maxScan: 'maxScan',
$max: 'max',
$min: 'min',
$returnKey: 'returnKey',
$showDiskLoc: 'showRecordId',
$maxTimeMS: 'maxTimeMS',
$snapshot: 'snapshot'
};

const LEGACY_FIND_OPTIONS_MAP = {
numberToSkip: 'skip',
numberToReturn: 'batchSize',
returnFieldsSelector: 'projection'
};

const OP_QUERY_KEYS = [
'tailable',
'oplogReplay',
'noCursorTimeout',
'awaitData',
'partial',
'exhaust'
];

/**
* Extract the actual command from the query, possibly upconverting if it's a legacy
* format
*
* @param {Object} command the command
*/
const extractCommand = command => {
if (command instanceof GetMore) {
return {
getMore: command.cursorId,
collection: collectionName(command),
batchSize: command.numberToReturn
};
}

if (command instanceof KillCursor) {
return {
killCursors: collectionName(command),
cursors: command.cursorIds
};
}

if (command instanceof Msg) {
return command.command;
}

if (command.query && command.query.$query) {
let result;
if (command.ns === 'admin.$cmd') {
// upconvert legacy command
result = Object.assign({}, command.query.$query);
} else {
// upconvert legacy find command
result = { find: collectionName(command) };
Object.keys(LEGACY_FIND_QUERY_MAP).forEach(key => {
if (typeof command.query[key] !== 'undefined')
result[LEGACY_FIND_QUERY_MAP[key]] = command.query[key];
});
}

Object.keys(LEGACY_FIND_OPTIONS_MAP).forEach(key => {
if (typeof command[key] !== 'undefined') result[LEGACY_FIND_OPTIONS_MAP[key]] = command[key];
});

OP_QUERY_KEYS.forEach(key => {
if (command[key]) result[key] = command[key];
});

if (typeof command.pre32Limit !== 'undefined') {
result.limit = command.pre32Limit;
}

if (command.query.$explain) {
return { explain: result };
}

return result;
}

return command.query ? command.query : command;
};

const extractReply = (command, reply) => {
if (command instanceof GetMore) {
return {
Expand Down Expand Up @@ -183,15 +70,15 @@ class CommandStartedEvent {
* @param {Object} command the command
*/
constructor(pool, command) {
const cmd = extractCommand(command);
const commandName = extractCommandName(cmd);
const extractedCommand = extractCommand(command);
const commandName = extractedCommand.name;
const connectionDetails = extractConnectionDetails(pool);

Object.assign(this, connectionDetails, {
requestId: command.requestId,
databaseName: databaseName(command),
commandName,
command: maybeRedact(commandName, cmd, cmd)
command: extractedCommand.shouldRedact ? {} : extractedCommand.cmd
});
}
}
Expand All @@ -207,15 +94,15 @@ class CommandSucceededEvent {
* @param {Array} started a high resolution tuple timestamp of when the command was first sent, to calculate duration
*/
constructor(pool, command, reply, started) {
const cmd = extractCommand(command);
const commandName = extractCommandName(cmd);
const extractedCommand = extractCommand(command);
const commandName = extractedCommand.name;
const connectionDetails = extractConnectionDetails(pool);

Object.assign(this, connectionDetails, {
requestId: command.requestId,
commandName,
duration: calculateDurationInMs(started),
reply: maybeRedact(commandName, cmd, extractReply(command, reply))
reply: extractedCommand.shouldRedact ? {} : extractReply(command, reply)
});
}
}
Expand All @@ -231,15 +118,15 @@ class CommandFailedEvent {
* @param {Array} started a high resolution tuple timestamp of when the command was first sent, to calculate duration
*/
constructor(pool, command, error, started) {
const cmd = extractCommand(command);
const commandName = extractCommandName(cmd);
const extractedCommand = extractCommand(command);
const commandName = extractedCommand.name;
const connectionDetails = extractConnectionDetails(pool);

Object.assign(this, connectionDetails, {
requestId: command.requestId,
commandName,
duration: calculateDurationInMs(started),
failure: maybeRedact(commandName, cmd, error)
failure: extractedCommand.shouldRedact ? {} : error
});
}
}
Expand Down
6 changes: 4 additions & 2 deletions lib/core/connection/connection.js
Original file line number Diff line number Diff line change
Expand Up @@ -254,10 +254,12 @@ class Connection extends EventEmitter {
// Debug Log
if (this.logger.isDebug()) {
if (!Array.isArray(buffer)) {
this.logger.debug(`writing buffer [${buffer.toString('hex')}] to ${this.address}`);
this.logger.debug(`writing buffer [ ${buffer.toString('hex').length} ] to ${this.address}`);
} else {
for (let i = 0; i < buffer.length; i++)
this.logger.debug(`writing buffer [${buffer[i].toString('hex')}] to ${this.address}`);
this.logger.debug(
`writing buffer [ ${buffer[i].toString('hex').length} ] to ${this.address}`
);
}
}

Expand Down
4 changes: 2 additions & 2 deletions lib/core/connection/pool.js
Original file line number Diff line number Diff line change
Expand Up @@ -390,8 +390,8 @@ function messageHandler(self) {
if (self.logger.isDebug()) {
self.logger.debug(
f(
'message [%s] received from %s:%s',
message.raw.toString('hex'),
'message [ %s ] received from %s:%s',
message.raw.toString('hex').length,
self.options.host,
self.options.port
)
Expand Down
4 changes: 3 additions & 1 deletion lib/core/sdam/server.js
Original file line number Diff line number Diff line change
Expand Up @@ -20,6 +20,7 @@ const isNodeShuttingDownError = require('../error').isNodeShuttingDownError;
const isNetworkErrorBeforeHandshake = require('../error').isNetworkErrorBeforeHandshake;
const maxWireVersion = require('../utils').maxWireVersion;
const makeStateMachine = require('../utils').makeStateMachine;
const extractCommand = require('../../command_utils').extractCommand;
const common = require('./common');
const ServerType = common.ServerType;
const isTransactionCommand = require('../transactions').isTransactionCommand;
Expand Down Expand Up @@ -261,10 +262,11 @@ class Server extends EventEmitter {

// Debug log
if (this.s.logger.isDebug()) {
const extractedCommand = extractCommand(cmd);
this.s.logger.debug(
`executing command [${JSON.stringify({
ns,
cmd,
cmd: extractedCommand.shouldRedact ? extractedCommand.name : cmd,
options: debugOptions(DEBUG_FIELDS, options)
})}] against ${this.name}`
);
Expand Down
7 changes: 5 additions & 2 deletions lib/core/topologies/server.js
Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,7 @@ var inherits = require('util').inherits,
createCompressionInfo = require('./shared').createCompressionInfo,
resolveClusterTime = require('./shared').resolveClusterTime,
SessionMixins = require('./shared').SessionMixins,
extractCommand = require('../../command_utils').extractCommand,
relayEvents = require('../utils').relayEvents;

const collationNotSupported = require('../utils').collationNotSupported;
Expand Down Expand Up @@ -608,18 +609,20 @@ Server.prototype.command = function(ns, cmd, options, callback) {
options = Object.assign({}, options, { wireProtocolCommand: false });

// Debug log
if (self.s.logger.isDebug())
if (self.s.logger.isDebug()) {
const extractedCommand = extractCommand(cmd);
self.s.logger.debug(
f(
'executing command [%s] against %s',
JSON.stringify({
ns: ns,
cmd: cmd,
cmd: extractedCommand.shouldRedact ? extractedCommand.name : cmd,
options: debugOptions(debugFields, options)
}),
self.name
)
);
}

// If we are not connected or have a disconnectHandler specified
if (disconnectHandler(self, 'command', ns, cmd, options, callback)) return;
Expand Down
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