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# Copyright 2013 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
# This file is expected to be used under another directory to use,
# so we disable checking import path of GAE tools from this directory.
# pylint: disable=F0401,E0611,W0232
import jinja2
import json
import os
import re
import urllib
import webapp2
from google.appengine.ext import blobstore
from google.appengine.ext.webapp import blobstore_handlers
import services
JINJA_ENVIRONMENT = jinja2.Environment(
loader=jinja2.FileSystemLoader(os.path.dirname(__file__)),
extensions=['jinja2.ext.autoescape'])
class MainPage(webapp2.RequestHandler):
"""Show breakdown with received profiler-id and template-id. If nothing was
received, show blank page waiting user to upload file."""
def get(self):
page_template = JINJA_ENVIRONMENT.get_template('index.html')
upload_url = blobstore.create_upload_url('/upload')
# Get profiler id and template id from url query.
run_id = self.request.get('run_id')
tmpl_id = self.request.get('tmpl_id')
upload_msg = self.request.get('upload_msg')
template_values = {
'upload_url': upload_url,
'upload_msg': upload_msg
}
if run_id and tmpl_id:
template_values['json'] = services.GetProfiler(run_id)
template_values['template'] = services.GetTemplate(tmpl_id)
self.response.write(page_template.render(template_values))
class UploadHandler(blobstore_handlers.BlobstoreUploadHandler):
"""Handle file uploading with BlobstoreUploadHandler. BlobstoreUploadHandler
can deal with files overweighing size limitation within one HTTP connection so
that user can upload large json file."""
def post(self):
blob_info = self.get_uploads('file')[0]
run_id = services.CreateProfiler(blob_info)
default_key = services.CreateTemplates(blob_info)
# TODO(junjianx): Validation of uploaded file should be done separately.
if not default_key:
# Jump to home page with error message.
req_params = {
'upload_msg': 'No default_template key was found.'
}
else:
# Jump to new graph page using default template.
req_params = {
'run_id': run_id,
'tmpl_id': default_key.urlsafe()
}
self.redirect('/?' + urllib.urlencode(req_params))
class ShareHandler(webapp2.RequestHandler):
"""Handle breakdown template sharing. Generate public url for transferred
template and return it back."""
def post(self):
run_id = self.request.POST['run_id']
content = json.loads(self.request.POST['content'])
tmpl_key = services.CreateTemplate(content)
req_params = {
'run_id': run_id,
'tmpl_id': tmpl_key.urlsafe()
}
# Take out host url from request by removing share suffix.
url = re.sub('share', '', self.request.url)
self.response.write(url + '?' + urllib.urlencode(req_params))
application = webapp2.WSGIApplication([
('/', MainPage),
('/upload', UploadHandler),
('/share', ShareHandler)
], debug=True)
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