Created
May 6, 2012 03:28
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Simple Python/Tornado web server tailored for hosting on OpenShift (https://openshift.redhat.com)
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| #!/usr/bin/python | |
| import os | |
| virtenv = os.environ['APPDIR'] + '/virtenv/' | |
| os.environ['PYTHON_EGG_CACHE'] = os.path.join(virtenv, 'lib/python2.6/site-packages') | |
| virtualenv = os.path.join(virtenv, 'bin/activate_this.py') | |
| try: | |
| execfile(virtualenv, dict(__file__=virtualenv)) | |
| except IOError: | |
| pass | |
| # | |
| # IMPORTANT: Put any additional includes below this line. If placed above this | |
| # line, it's possible required libraries won't be in your searchable path | |
| # | |
| # this file lives at <appname>/wsgi/application | |
| import tornado.wsgi | |
| import tornado.web | |
| from json import loads | |
| from time import time, gmtime, strftime | |
| from uuid import uuid4 | |
| # serve up simple HTML form | |
| class MainHandler(tornado.web.RequestHandler): | |
| def get(self): | |
| self.write("<html><head><title>Test Form</title></head><body>") | |
| self.write("<form name='input' action='/jobs/' method='post'>") | |
| self.write("<input type='hidden' name='newjob' value='yes'>") | |
| self.write("Term:<input type='text' name='value'/><br>") | |
| self.write("<input type='submit' value='Go!'/></form>") | |
| self.write("</body></html>") | |
| # /jobs | |
| class JobsHandler(tornado.web.RequestHandler): | |
| # serve table of stuff ("jobs" in this case) | |
| def servetable(self): | |
| self.write("<html><head><title>Table</title></head><body>") | |
| self.write("Jobs:<p>") | |
| jobsout = open("/path/to/file", "r") | |
| completed = {} | |
| for row in jobsout.readlines(): | |
| vals = row.split(",") | |
| self.write("<tr><td><a href='/job/" + vals[0] + "'>" + vals[0] + "</a></td><td>" + vals[1] + "</td></tr>") | |
| jobsout.close() | |
| self.write("</table></body></html>") | |
| # print table, that's it | |
| def get(self): | |
| self.servetable() | |
| # process form | |
| def post(self): | |
| if self.get_argument("newjob", None): | |
| v = self.get_argument("value") | |
| f = open("/path/to/file", "a") | |
| t = int(round(time() * 1000)) | |
| f.write(str(uuid4()) + "," + v + "," + str(t) + "\n") | |
| f.close() | |
| self.servetable() | |
| # /job/ | |
| class JobHandler(tornado.web.RequestHandler): | |
| def get(self, val): | |
| self.write("<html><head><title>Job Details</title></head><body>") | |
| self.write("Log for job " + str(val) + ":<p>") | |
| # open jobfile (not created by this app) | |
| f = open('/path/to/jobfile' + val + '.job') | |
| for r in f: | |
| self.write(r + "<br>") | |
| f.close() | |
| self.write("</body></html>") | |
| # here's where the server decides where to route the request | |
| application = tornado.wsgi.WSGIApplication([ | |
| (r"/", MainHandler), # this serves up a form | |
| (r"/([0-9]+)", MainHandler), | |
| (r"/jobs/", JobsHandler), # this might necessitate a form being processed | |
| (r"/job/(.*?)", JobHandler) | |
| ]) | |
| if __name__ == '__main__': | |
| from wsgiref.simple_server import make_server | |
| httpd = make_server('localhost', 8051, application) | |
| httpd.handle_request() |
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