15c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)# Copyright (c) 2011 Google Inc. All rights reserved. 25c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)# 35c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)# Redistribution and use in source and binary forms, with or without 45c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)# modification, are permitted provided that the following conditions are 55c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)# met: 65c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)# 75c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)# * Redistributions of source code must retain the above copyright 85c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)# notice, this list of conditions and the following disclaimer. 95c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)# * Redistributions in binary form must reproduce the above 105c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)# copyright notice, this list of conditions and the following disclaimer 115c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)# in the documentation and/or other materials provided with the 125c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)# distribution. 135c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)# * Neither the name of Google Inc. nor the names of its 145c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)# contributors may be used to endorse or promote products derived from 155c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)# this software without specific prior written permission. 165c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)# 175c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 185c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 195c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 205c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 215c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 225c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 235c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 245c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 255c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 265c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 275c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 285c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 295c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)import BaseHTTPServer 305c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 315c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)import cgi 325c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)import codecs 335c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)import datetime 345c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)import fnmatch 355c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)import json 365c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)import mimetypes 375c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)import os.path 385c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)import shutil 395c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)import threading 405c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)import time 415c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)import urlparse 425c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)import wsgiref.handlers 435c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)import BaseHTTPServer 445c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 455c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 465c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)class ReflectionHandler(BaseHTTPServer.BaseHTTPRequestHandler): 47926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) STATIC_FILE_EXTENSIONS = ['.js', '.css', '.html'] 485c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) # Subclasses should override. 495c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) STATIC_FILE_DIRECTORY = None 505c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 515c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) # Setting this flag to True causes the server to send 525c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) # Access-Control-Allow-Origin: * 535c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) # with every response. 545c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) allow_cross_origin_requests = False 555c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 565c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) def do_GET(self): 575c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) self._handle_request() 585c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 595c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) def do_POST(self): 605c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) self._handle_request() 615c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 625c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) def do_HEAD(self): 635c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) self._handle_request() 645c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 655c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) def read_entity_body(self): 665c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) length = int(self.headers.getheader('content-length')) 675c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return self.rfile.read(length) 685c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 695c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) def _read_entity_body_as_json(self): 705c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return json.loads(self.read_entity_body()) 715c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 725c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) def _handle_request(self): 735c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if "?" in self.path: 745c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) path, query_string = self.path.split("?", 1) 755c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) self.query = cgi.parse_qs(query_string) 765c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) else: 775c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) path = self.path 785c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) self.query = {} 795c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) function_or_file_name = path[1:] or "index.html" 805c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 81926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) _, extension = os.path.splitext(function_or_file_name) 82926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) if extension in self.STATIC_FILE_EXTENSIONS: 835c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) self._serve_static_file(function_or_file_name) 845c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return 855c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 865c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) function_name = function_or_file_name.replace(".", "_") 875c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if not hasattr(self, function_name): 885c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) self.send_error(404, "Unknown function %s" % function_name) 895c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return 905c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if function_name[0] == "_": 915c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) self.send_error(401, "Not allowed to invoke private or protected methods") 925c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return 935c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) function = getattr(self, function_name) 945c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) function() 955c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 965c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) def _serve_static_file(self, static_path): 975c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) self._serve_file(os.path.join(self.STATIC_FILE_DIRECTORY, static_path)) 985c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 995c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) def quitquitquit(self): 1005c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) self._serve_text("Server quit.\n") 1015c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) # Shutdown has to happen on another thread from the server's thread, 1025c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) # otherwise there's a deadlock 1035c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) threading.Thread(target=lambda: self.server.shutdown()).start() 1045c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1055c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) def _send_access_control_header(self): 1065c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if self.allow_cross_origin_requests: 1075c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) self.send_header('Access-Control-Allow-Origin', '*') 1085c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1095c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) def _serve_text(self, text): 1105c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) self.send_response(200) 1115c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) self._send_access_control_header() 1125c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) self.send_header("Content-type", "text/plain") 1135c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) self.end_headers() 1145c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) self.wfile.write(text) 1155c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1165c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) def _serve_json(self, json_object): 1175c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) self.send_response(200) 1185c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) self._send_access_control_header() 1195c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) self.send_header('Content-type', 'application/json') 1205c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) self.end_headers() 1215c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) json.dump(json_object, self.wfile) 1225c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1235c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) def _serve_file(self, file_path, cacheable_seconds=0, headers_only=False): 1245c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if not os.path.exists(file_path): 1255c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) self.send_error(404, "File not found") 1265c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return 1275c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) with codecs.open(file_path, "rb") as static_file: 1285c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) self.send_response(200) 1295c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) self._send_access_control_header() 1305c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) self.send_header("Content-Length", os.path.getsize(file_path)) 1315c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) mime_type, encoding = mimetypes.guess_type(file_path) 1325c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if mime_type: 1335c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) self.send_header("Content-type", mime_type) 1345c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1355c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if cacheable_seconds: 1365c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) expires_time = (datetime.datetime.now() + 1375c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) datetime.timedelta(0, cacheable_seconds)) 1385c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) expires_formatted = wsgiref.handlers.format_date_time( 1395c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) time.mktime(expires_time.timetuple())) 1405c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) self.send_header("Expires", expires_formatted) 1415c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) self.end_headers() 1425c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1435c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if not headers_only: 1445c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) shutil.copyfileobj(static_file, self.wfile) 14553e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) 14653e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) def _serve_xml(self, xml): 14753e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) self.send_response(200) 14853e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) self._send_access_control_header() 14953e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) self.send_header("Content-type", "text/xml") 15053e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) self.end_headers() 15153e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) xml = xml.encode('utf-8') 15253e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) self.wfile.write(xml) 153