dcb4e65998
(SkipBuildbotRuns) This will be handy for constrained networks or devices, where we don't want to bother downloading info about all the successful tests. R=jcgregorio@google.com Review URL: https://codereview.chromium.org/26891003 git-svn-id: http://skia.googlecode.com/svn/trunk@11737 2bbb7eff-a529-9590-31e7-b0007b416f81
284 lines
10 KiB
Python
Executable File
284 lines
10 KiB
Python
Executable File
#!/usr/bin/python
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"""
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Copyright 2013 Google Inc.
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Use of this source code is governed by a BSD-style license that can be
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found in the LICENSE file.
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HTTP server for our HTML rebaseline viewer.
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"""
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# System-level imports
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import argparse
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import BaseHTTPServer
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import json
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import logging
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import os
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import posixpath
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import re
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import shutil
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import sys
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import urlparse
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# Imports from within Skia
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#
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# We need to add the 'tools' directory, so that we can import svn.py within
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# that directory.
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# Make sure that the 'tools' dir is in the PYTHONPATH, but add it at the *end*
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# so any dirs that are already in the PYTHONPATH will be preferred.
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PARENT_DIRECTORY = os.path.dirname(os.path.realpath(__file__))
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TRUNK_DIRECTORY = os.path.dirname(os.path.dirname(PARENT_DIRECTORY))
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TOOLS_DIRECTORY = os.path.join(TRUNK_DIRECTORY, 'tools')
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if TOOLS_DIRECTORY not in sys.path:
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sys.path.append(TOOLS_DIRECTORY)
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import svn
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# Imports from local dir
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import results
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ACTUALS_SVN_REPO = 'http://skia-autogen.googlecode.com/svn/gm-actual'
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PATHSPLIT_RE = re.compile('/([^/]+)/(.+)')
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TRUNK_DIRECTORY = os.path.dirname(os.path.dirname(os.path.dirname(
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os.path.realpath(__file__))))
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# A simple dictionary of file name extensions to MIME types. The empty string
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# entry is used as the default when no extension was given or if the extension
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# has no entry in this dictionary.
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MIME_TYPE_MAP = {'': 'application/octet-stream',
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'html': 'text/html',
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'css': 'text/css',
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'png': 'image/png',
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'js': 'application/javascript',
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'json': 'application/json'
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}
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DEFAULT_ACTUALS_DIR = '.gm-actuals'
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DEFAULT_EXPECTATIONS_DIR = os.path.join(TRUNK_DIRECTORY, 'expectations', 'gm')
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DEFAULT_PORT = 8888
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_SERVER = None # This gets filled in by main()
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class Server(object):
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""" HTTP server for our HTML rebaseline viewer. """
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def __init__(self,
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actuals_dir=DEFAULT_ACTUALS_DIR,
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expectations_dir=DEFAULT_EXPECTATIONS_DIR,
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port=DEFAULT_PORT, export=False):
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"""
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Args:
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actuals_dir: directory under which we will check out the latest actual
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GM results
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expectations_dir: directory under which to find GM expectations (they
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must already be in that directory)
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port: which TCP port to listen on for HTTP requests
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export: whether to allow HTTP clients on other hosts to access this server
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"""
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self._actuals_dir = actuals_dir
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self._expectations_dir = expectations_dir
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self._port = port
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self._export = export
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def is_exported(self):
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""" Returns true iff HTTP clients on other hosts are allowed to access
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this server. """
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return self._export
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def fetch_results(self):
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""" Create self.results, based on the expectations in
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self._expectations_dir and the latest actuals from skia-autogen.
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TODO(epoger): Add a new --browseonly mode setting. In that mode,
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the gm-actuals and expectations will automatically be updated every few
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minutes. See discussion in https://codereview.chromium.org/24274003/ .
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"""
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logging.info('Checking out latest actual GM results from %s into %s ...' % (
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ACTUALS_SVN_REPO, self._actuals_dir))
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actuals_repo = svn.Svn(self._actuals_dir)
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if not os.path.isdir(self._actuals_dir):
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os.makedirs(self._actuals_dir)
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actuals_repo.Checkout(ACTUALS_SVN_REPO, '.')
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else:
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actuals_repo.Update('.')
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logging.info(
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'Parsing results from actuals in %s and expectations in %s ...' % (
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self._actuals_dir, self._expectations_dir))
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self.results = results.Results(
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actuals_root=self._actuals_dir,
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expected_root=self._expectations_dir)
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def run(self):
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self.fetch_results()
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if self._export:
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server_address = ('', self._port)
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logging.warning('Running in "export" mode. Users on other machines will '
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'be able to modify your GM expectations!')
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else:
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server_address = ('127.0.0.1', self._port)
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http_server = BaseHTTPServer.HTTPServer(server_address, HTTPRequestHandler)
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logging.info('Ready for requests on http://%s:%d' % (
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http_server.server_name, http_server.server_port))
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http_server.serve_forever()
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class HTTPRequestHandler(BaseHTTPServer.BaseHTTPRequestHandler):
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""" HTTP request handlers for various types of queries this server knows
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how to handle (static HTML and Javascript, expected/actual results, etc.)
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"""
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def do_GET(self):
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""" Handles all GET requests, forwarding them to the appropriate
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do_GET_* dispatcher. """
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if self.path == '' or self.path == '/' or self.path == '/index.html' :
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self.redirect_to('/static/view.html?resultsToLoad=all')
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return
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if self.path == '/favicon.ico' :
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self.redirect_to('/static/favicon.ico')
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return
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# All requests must be of this form:
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# /dispatcher/remainder
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# where 'dispatcher' indicates which do_GET_* dispatcher to run
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# and 'remainder' is the remaining path sent to that dispatcher.
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normpath = posixpath.normpath(self.path)
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(dispatcher_name, remainder) = PATHSPLIT_RE.match(normpath).groups()
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dispatchers = {
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'results': self.do_GET_results,
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'static': self.do_GET_static,
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}
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dispatcher = dispatchers[dispatcher_name]
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dispatcher(remainder)
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def do_GET_results(self, type):
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""" Handle a GET request for GM results.
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Args:
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type: string indicating which set of results to return;
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must be one of the results.RESULTS_* constants
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"""
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logging.debug('do_GET_results: sending results of type "%s"' % type)
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try:
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# TODO(epoger): Rather than using a global variable for the handler
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# to refer to the Server object, make Server a subclass of
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# HTTPServer, and then it could be available to the handler via
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# the handler's .server instance variable.
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response_dict = _SERVER.results.get_results_of_type(type)
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response_dict['header'] = {
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# Hash of testData, which the client must return with any edits--
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# this ensures that the edits were made to a particular dataset.
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'data-hash': str(hash(repr(response_dict['testData']))),
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# Whether the server will accept edits back.
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# TODO(epoger): Not yet implemented, so hardcoding to False;
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# once we implement the 'browseonly' mode discussed in
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# https://codereview.chromium.org/24274003/#msg6 , this value will vary.
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'isEditable': False,
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# Whether the service is accessible from other hosts.
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'isExported': _SERVER.is_exported(),
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}
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self.send_json_dict(response_dict)
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except:
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self.send_error(404)
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def do_GET_static(self, path):
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""" Handle a GET request for a file under the 'static' directory.
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Only allow serving of files within the 'static' directory that is a
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filesystem sibling of this script.
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Args:
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path: path to file (under static directory) to retrieve
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"""
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# Strip arguments ('?resultsToLoad=all') from the path
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path = urlparse.urlparse(path).path
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logging.debug('do_GET_static: sending file "%s"' % path)
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static_dir = os.path.realpath(os.path.join(PARENT_DIRECTORY, 'static'))
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full_path = os.path.realpath(os.path.join(static_dir, path))
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if full_path.startswith(static_dir):
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self.send_file(full_path)
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else:
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logging.error(
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'Attempted do_GET_static() of path [%s] outside of static dir [%s]'
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% (full_path, static_dir))
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self.send_error(404)
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def redirect_to(self, url):
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""" Redirect the HTTP client to a different url.
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Args:
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url: URL to redirect the HTTP client to
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"""
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self.send_response(301)
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self.send_header('Location', url)
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self.end_headers()
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def send_file(self, path):
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""" Send the contents of the file at this path, with a mimetype based
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on the filename extension.
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Args:
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path: path of file whose contents to send to the HTTP client
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"""
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# Grab the extension if there is one
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extension = os.path.splitext(path)[1]
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if len(extension) >= 1:
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extension = extension[1:]
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# Determine the MIME type of the file from its extension
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mime_type = MIME_TYPE_MAP.get(extension, MIME_TYPE_MAP[''])
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# Open the file and send it over HTTP
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if os.path.isfile(path):
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with open(path, 'rb') as sending_file:
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self.send_response(200)
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self.send_header('Content-type', mime_type)
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self.end_headers()
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self.wfile.write(sending_file.read())
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else:
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self.send_error(404)
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def send_json_dict(self, json_dict):
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""" Send the contents of this dictionary in JSON format, with a JSON
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mimetype.
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Args:
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json_dict: dictionary to send
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"""
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self.send_response(200)
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self.send_header('Content-type', 'application/json')
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self.end_headers()
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json.dump(json_dict, self.wfile)
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def main():
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logging.basicConfig(level=logging.INFO)
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parser = argparse.ArgumentParser()
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parser.add_argument('--actuals-dir',
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help=('Directory into which we will check out the latest '
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'actual GM results. If this directory does not '
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'exist, it will be created. Defaults to %(default)s'),
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default=DEFAULT_ACTUALS_DIR)
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parser.add_argument('--expectations-dir',
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help=('Directory under which to find GM expectations; '
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'defaults to %(default)s'),
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default=DEFAULT_EXPECTATIONS_DIR)
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parser.add_argument('--export', action='store_true',
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help=('Instead of only allowing access from HTTP clients '
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'on localhost, allow HTTP clients on other hosts '
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'to access this server. WARNING: doing so will '
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'allow users on other hosts to modify your '
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'GM expectations!'))
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parser.add_argument('--port', type=int,
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help=('Which TCP port to listen on for HTTP requests; '
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'defaults to %(default)s'),
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default=DEFAULT_PORT)
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args = parser.parse_args()
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global _SERVER
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_SERVER = Server(expectations_dir=args.expectations_dir,
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port=args.port, export=args.export)
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_SERVER.run()
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if __name__ == '__main__':
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main()
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