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95 lines
No EOL
2.5 KiB
CoffeeScript
95 lines
No EOL
2.5 KiB
CoffeeScript
###
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Dynamic Modules
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===============
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> Compiles CoffeeScript modules and loads JS modules in a VM, together
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> with only a few allowed node.js modules.
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###
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# - Node.js Modules: [vm](http://nodejs.org/api/vm.html) and
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# [events](http://nodejs.org/api/events.html)
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vm = require 'vm'
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needle = require 'needle'
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# - External Modules: [coffee-script](http://coffeescript.org/)
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cs = require 'coffee-script'
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# cryptico = require 'my-cryptico'
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# conf = require path.join '..', 'js-coffee', 'config'
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# conf opts
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# passPhrase = conf.getKeygenPassphrase()
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# numBits = 1024
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# console.log passPhrase
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# oPrivateRSAkey = cryptico.generateRSAKey passPhrase, numBits
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# strPublicKey = cryptico.publicKeyString oPrivateRSAkey
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# plainText = "Matt, I need you to help me with my Starcraft strategy."
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# oEncrypted = cryptico.encrypt plainText, strPublicKey
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# console.log oEncrypted.cipher
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# oDecrypted = cryptico.decrypt oEncrypted.cipher, oPrivateRSAkey
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# console.log oDecrypted.plaintext
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###
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Module call
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-----------
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Initializes the dynamic module handler.
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@param {Object} args
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###
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exports = module.exports = ( args ) =>
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@log = args.logger
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module.exports
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###
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Try to run a JS module from a string, together with the
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given parameters. If it is written in CoffeeScript we
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compile it first into JS.
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@public compileString ( *src, id, params, lang* )
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@param {String} src
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@param {String} id
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@param {Object} params
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@param {String} lang
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###
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exports.compileString = ( src, userId, moduleId, params, lang ) =>
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answ =
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code: 200
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message: 'Successfully compiled'
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# src = "'use strict;'\n" + src
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if lang is '0'
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try
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src = cs.compile src
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catch err
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answ.code = 400
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answ.message = 'Compilation of CoffeeScript failed at line ' +
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err.location.first_line
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#FIXME not log but debug module is required to provide information to the user
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sandbox =
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id: userId + '.' + moduleId + '.vm'
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params: params
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needle: needle
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log: console.log
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# console: console #TODO remove!
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exports: {}
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#TODO child_process to run module!
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#Define max runtime per loop as 10 seconds, after that the child will be killed
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#it can still be active after that if there was a timing function or a callback used...
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#kill the child each time? how to determine whether there's still a token in the module?
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try
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vm.runInNewContext src, sandbox, sandbox.id
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catch err
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answ.code = 400
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answ.message = 'Loading Module failed: ' + err.message
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ret =
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answ: answ
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module: sandbox.exports
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ret |