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# Copyright (c) 2015 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.
import argparse
import json
import os
import sys
import urlparse
from hooks import install
from paste import fileapp
from paste import httpserver
import webapp2
from webapp2 import Route, RedirectHandler
from dashboard_build import dashboard_dev_server_config
from tracing_build import tracing_dev_server_config
from netlog_viewer_build import netlog_viewer_dev_server_config
_MAIN_HTML = """<html><body>
<h1>Run Unit Tests</h1>
<ul>
%s
</ul>
<h1>Quick links</h1>
<ul>
%s
</ul>
</body></html>
"""
_QUICK_LINKS = [
('Trace File Viewer',
'/tracing_examples/trace_viewer.html'),
('Metrics debugger',
'/tracing_examples/metrics_debugger.html'),
]
_LINK_ITEM = '<li><a href="%s">%s</a></li>'
def _GetFilesIn(basedir):
data_files = []
for dirpath, dirnames, filenames in os.walk(basedir, followlinks=True):
new_dirnames = [d for d in dirnames if not d.startswith('.')]
del dirnames[:]
dirnames += new_dirnames
for f in filenames:
if f.startswith('.'):
continue
if f == 'README.md':
continue
full_f = os.path.join(dirpath, f)
rel_f = os.path.relpath(full_f, basedir)
data_files.append(rel_f)
data_files.sort()
return data_files
def _RelPathToUnixPath(p):
return p.replace(os.sep, '/')
class TestResultHandler(webapp2.RequestHandler):
def post(self, *args, **kwargs): # pylint: disable=unused-argument
msg = self.request.body
ostream = sys.stdout if 'PASSED' in msg else sys.stderr
ostream.write(msg + '\n')
return self.response.write('')
class TestsCompletedHandler(webapp2.RequestHandler):
def post(self, *args, **kwargs): # pylint: disable=unused-argument
msg = self.request.body
sys.stdout.write(msg + '\n')
exit_code = 0 if 'ALL_PASSED' in msg else 1
if hasattr(self.app.server, 'please_exit'):
self.app.server.please_exit(exit_code)
return self.response.write('')
class DirectoryListingHandler(webapp2.RequestHandler):
def get(self, *args, **kwargs): # pylint: disable=unused-argument
source_path = kwargs.pop('_source_path', None)
mapped_path = kwargs.pop('_mapped_path', None)
assert mapped_path.endswith('/')
data_files_relative_to_top = _GetFilesIn(source_path)
data_files = [mapped_path + x
for x in data_files_relative_to_top]
files_as_json = json.dumps(data_files)
self.response.content_type = 'application/json'
return self.response.write(files_as_json)
class FileAppWithGZipHandling(fileapp.FileApp):
def guess_type(self):
content_type, content_encoding = \
super(FileAppWithGZipHandling, self).guess_type()
if not self.filename.endswith('.gz'):
return content_type, content_encoding
# By default, FileApp serves gzip files as their underlying type with
# Content-Encoding of gzip. That causes them to show up on the client
# decompressed. That ends up being surprising to our xhr.html system.
return None, None
class SourcePathsHandler(webapp2.RequestHandler):
def get(self, *args, **kwargs): # pylint: disable=unused-argument
source_paths = kwargs.pop('_source_paths', [])
path = self.request.path
# This is how we do it. Its... strange, but its what we've done since
# the dawn of time. Aka 4 years ago, lol.
for mapped_path in source_paths:
rel = os.path.relpath(path, '/')
candidate = os.path.join(mapped_path, rel)
if os.path.exists(candidate):
app = FileAppWithGZipHandling(candidate)
app.cache_control(no_cache=True)
return app
self.abort(404)
@staticmethod
def GetServingPathForAbsFilename(source_paths, filename):
if not os.path.isabs(filename):
raise Exception('filename must be an absolute path')
for mapped_path in source_paths:
if not filename.startswith(mapped_path):
continue
rel = os.path.relpath(filename, mapped_path)
unix_rel = _RelPathToUnixPath(rel)
return unix_rel
return None
class SimpleDirectoryHandler(webapp2.RequestHandler):
def get(self, *args, **kwargs): # pylint: disable=unused-argument
top_path = os.path.abspath(kwargs.pop('_top_path', None))
if not top_path.endswith(os.path.sep):
top_path += os.path.sep
joined_path = os.path.abspath(
os.path.join(top_path, kwargs.pop('rest_of_path')))
if not joined_path.startswith(top_path):
self.response.set_status(403)
return
app = FileAppWithGZipHandling(joined_path)
app.cache_control(no_cache=True)
return app
class TestOverviewHandler(webapp2.RequestHandler):
def get(self, *args, **kwargs): # pylint: disable=unused-argument
test_links = []
for name, path in kwargs.pop('pds').iteritems():
test_links.append(_LINK_ITEM % (path, name))
quick_links = []
for name, path in _QUICK_LINKS:
quick_links.append(_LINK_ITEM % (path, name))
self.response.out.write(_MAIN_HTML % ('\n'.join(test_links),
'\n'.join(quick_links)))
class DevServerApp(webapp2.WSGIApplication):
def __init__(self, pds, args):
super(DevServerApp, self).__init__(debug=True)
self.pds = pds
self._server = None
self._all_source_paths = []
self._all_mapped_test_data_paths = []
self._InitFromArgs(args)
@property
def server(self):
return self._server
@server.setter
def server(self, server):
self._server = server
def _InitFromArgs(self, args):
default_tests = dict((pd.GetName(), pd.GetRunUnitTestsUrl())
for pd in self.pds)
routes = [
Route('/tests.html', TestOverviewHandler,
defaults={'pds': default_tests}),
Route('', RedirectHandler, defaults={'_uri': '/tests.html'}),
Route('/', RedirectHandler, defaults={'_uri': '/tests.html'}),
]
for pd in self.pds:
routes += pd.GetRoutes(args)
routes += [
Route('/%s/notify_test_result' % pd.GetName(),
TestResultHandler),
Route('/%s/notify_tests_completed' % pd.GetName(),
TestsCompletedHandler)
]
for pd in self.pds:
# Test data system.
for mapped_path, source_path in pd.GetTestDataPaths(args):
self._all_mapped_test_data_paths.append((mapped_path, source_path))
routes.append(Route('%s__file_list__' % mapped_path,
DirectoryListingHandler,
defaults={
'_source_path': source_path,
'_mapped_path': mapped_path
}))
routes.append(Route('%s<rest_of_path:.+>' % mapped_path,
SimpleDirectoryHandler,
defaults={'_top_path': source_path}))
# This must go last, because its catch-all.
#
# Its funky that we have to add in the root path. The long term fix is to
# stop with the crazy multi-source-pathing thing.
for pd in self.pds:
self._all_source_paths += pd.GetSourcePaths(args)
routes.append(
Route('/<:.+>', SourcePathsHandler,
defaults={'_source_paths': self._all_source_paths}))
for route in routes:
self.router.add(route)
def GetAbsFilenameForHref(self, href):
for source_path in self._all_source_paths:
full_source_path = os.path.abspath(source_path)
expanded_href_path = os.path.abspath(os.path.join(full_source_path,
href.lstrip('/')))
if (os.path.exists(expanded_href_path) and
os.path.commonprefix([full_source_path,
expanded_href_path]) == full_source_path):
return expanded_href_path
return None
def GetURLForAbsFilename(self, filename):
assert self.server is not None
for mapped_path, source_path in self._all_mapped_test_data_paths:
if not filename.startswith(source_path):
continue
rel = os.path.relpath(filename, source_path)
unix_rel = _RelPathToUnixPath(rel)
url = urlparse.urljoin(mapped_path, unix_rel)
return url
path = SourcePathsHandler.GetServingPathForAbsFilename(
self._all_source_paths, filename)
if path is None:
return None
return urlparse.urljoin('/', path)
def _AddPleaseExitMixinToServer(server):
# Shutting down httpserver gracefully and yielding a return code requires
# a bit of mixin code.
exit_code_attempt = []
def PleaseExit(exit_code):
if len(exit_code_attempt) > 0:
return
exit_code_attempt.append(exit_code)
server.running = False
real_serve_forever = server.serve_forever
def ServeForever():
try:
real_serve_forever()
except KeyboardInterrupt:
# allow CTRL+C to shutdown
return 255
if len(exit_code_attempt) == 1:
return exit_code_attempt[0]
# The serve_forever returned for some reason separate from
# exit_please.
return 0
server.please_exit = PleaseExit
server.serve_forever = ServeForever
def _AddCommandLineArguments(pds, argv):
parser = argparse.ArgumentParser(description='Run development server')
parser.add_argument(
'--no-install-hooks', dest='install_hooks', action='store_false')
parser.add_argument('-p', '--port', default=8003, type=int)
for pd in pds:
g = parser.add_argument_group(pd.GetName())
pd.AddOptionstToArgParseGroup(g)
args = parser.parse_args(args=argv[1:])
return args
def Main(argv):
pds = [
dashboard_dev_server_config.DashboardDevServerConfig(),
tracing_dev_server_config.TracingDevServerConfig(),
netlog_viewer_dev_server_config.NetlogViewerDevServerConfig(),
]
args = _AddCommandLineArguments(pds, argv)
if args.install_hooks:
install.InstallHooks()
app = DevServerApp(pds, args=args)
server = httpserver.serve(app, host='127.0.0.1', port=args.port,
start_loop=False, daemon_threads=True)
_AddPleaseExitMixinToServer(server)
# pylint: disable=no-member
server.urlbase = 'http://127.0.0.1:%i' % server.server_port
app.server = server
sys.stderr.write('Now running on %s\n' % server.urlbase)
return server.serve_forever()
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