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| #!/usr/bin/python | |
| from __future__ import with_statement | |
| import base64 | |
| import PyV8 | |
| import time | |
| from twisted.application import service, internet | |
| from twisted.web import server, resource, client | |
| class EvalResource(resource.Resource): | |
| def __init__(self, parent_context): | |
| self.parent_context = parent_context | |
| def render_POST(self, request): | |
| b64code = request.requestHeaders.getRawHeaders('X-SCRIPTLETS-RUN-CODE')[0] | |
| code = base64.b64decode(b64code) | |
| # TODO: threads.deferToThread, setting request timeout | |
| try: | |
| with PyV8.JSContext(self.parent_context) as context: | |
| context.eval(code) | |
| app = context.locals.app | |
| env = {} # TODO: jsgi compatible-ify the env | |
| response = app(env) | |
| request.setResponseCode(response.status) | |
| headers = PyV8.convert(response.headers) | |
| for (k,v) in PyV8.convert(response.headers).items(): | |
| request.setHeader(k,v) | |
| request.write(str(response.body)) | |
| return '' | |
| except Exception, e: | |
| request.setResponseCode(500) | |
| return str(e) | |
| class EvalDriverResource(resource.Resource): | |
| def render_POST(self, request): | |
| code = request.args.get('code', [''])[0] | |
| b64code = base64.b64encode(code) | |
| def done(page): | |
| request.write('<pre>'+page+'</pre>') | |
| request.finish() | |
| client.getPage( | |
| 'http://localhost:8123/eval?arg0=zero&q=lolcats', | |
| method='POST', | |
| headers={ 'X-SCRIPTLETS-RUN-CODE':b64code, | |
| 'X-SCRIPTLETS-RUN-URL':'http://whatever/i/forgot', | |
| 'X-SCRIPTLETS-RUN-METHOD':'POST'} | |
| ).addBoth(done) | |
| return server.NOT_DONE_YET | |
| class BaseResource(resource.Resource): | |
| def render(self, request): | |
| return """ | |
| <html> | |
| <head> | |
| <title>New Javascript Engine Driver</title> | |
| </head> | |
| <body> | |
| <h1>Run it!</h1> | |
| <form action="/eval_driver" method="POST"> | |
| <textarea name="code" rows="10" cols="80"> | |
| // a JSGI app, see http://jackjs.org/ | |
| function app(env) { | |
| return { | |
| status : 200, | |
| headers : {"Content-Type":"text/plain"}, | |
| body : ["Hello world!"] | |
| }; | |
| }</textarea><br/> | |
| <input type="submit" name="submit" value="Run" /> | |
| </form> | |
| </body> | |
| </html> | |
| """ | |
| class ScriptletsGlobals(PyV8.JSClass): | |
| # TODO: expose more stuff? (like however Jack shows the request) | |
| def fetch(self, url): | |
| page = 'the contents of ' + url + ' go here someday' | |
| time.sleep(1.0) | |
| return page | |
| js_context = PyV8.JSContext(ScriptletsGlobals()) | |
| js_context.enter() | |
| root = resource.Resource() | |
| root.putChild('', BaseResource()) | |
| root.putChild('eval', EvalResource(js_context)) | |
| root.putChild('eval_driver', EvalDriverResource()) | |
| port = 8123 | |
| application = service.Application("newscriptlets") | |
| service = internet.TCPServer(port, server.Site(root)) | |
| service.setServiceParent(application) |
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