#!/usr/bin/env python """\ @file test_llsdmessage_peer.py @author Nat Goodspeed @date 2008-10-09 @brief This script asynchronously runs the executable (with args) specified on the command line, returning its result code. While that executable is running, we provide dummy local services for use by C++ tests. $LicenseInfo:firstyear=2008&license=viewerlgpl$ Second Life Viewer Source Code Copyright (C) 2012-2013, Linden Research, Inc. This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; version 2.1 of the License only. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA $/LicenseInfo$ """ import os import sys import time import select import getopt from threading import Thread try: from cStringIO import StringIO except ImportError: from StringIO import StringIO from BaseHTTPServer import HTTPServer, BaseHTTPRequestHandler from SocketServer import ThreadingMixIn mydir = os.path.dirname(__file__) # expected to be .../indra/llcorehttp/tests/ sys.path.insert(0, os.path.join(mydir, os.pardir, os.pardir, "lib", "python")) from indra.util.fastest_elementtree import parse as xml_parse from indra.base import llsd from testrunner import freeport, run, debug, VERBOSE class TestHTTPRequestHandler(BaseHTTPRequestHandler): """This subclass of BaseHTTPRequestHandler is to receive and echo LLSD-flavored messages sent by the C++ LLHTTPClient. Target URLs are fairly free-form and are assembled by concatinating fragments. Currently defined fragments are: - '/reflect/' Request headers are bounced back to caller after prefixing with 'X-Reflect-' - '/fail/' Body of request can contain LLSD with 'reason' string and 'status' integer which will become response header. - '/bug2295/' 206 response, no data in body: -- '/bug2295/0/' "Content-Range: bytes 0-75/2983" -- '/bug2295/1/' "Content-Range: bytes 0-75/*" -- '/bug2295/2/' "Content-Range: bytes 0-75/2983", "Content-Length: 0" -- '/bug2295/00000018/0/' Generates PARTIAL_FILE (18) error in libcurl. "Content-Range: bytes 0-75/2983", "Content-Length: 76" -- '/bug2295/inv_cont_range/0/' Generates HE_INVALID_CONTENT_RANGE error in llcorehttp. Some combinations make no sense, there's no effort to protect you from that. """ ignore_exceptions = (Exception,) def read(self): # The following logic is adapted from the library module # SimpleXMLRPCServer.py. # Get arguments by reading body of request. # We read this in chunks to avoid straining # socket.read(); around the 10 or 15Mb mark, some platforms # begin to have problems (bug #792570). try: size_remaining = int(self.headers["content-length"]) except (KeyError, ValueError): return "" max_chunk_size = 10*1024*1024 L = [] while size_remaining: chunk_size = min(size_remaining, max_chunk_size) chunk = self.rfile.read(chunk_size) L.append(chunk) size_remaining -= len(chunk) return ''.join(L) # end of swiped read() logic def read_xml(self): # This approach reads the entire POST data into memory first return llsd.parse(self.read()) ## # This approach attempts to stream in the LLSD XML from self.rfile, ## # assuming that the underlying XML parser reads its input file ## # incrementally. Unfortunately I haven't been able to make it work. ## tree = xml_parse(self.rfile) ## debug("Finished raw parse") ## debug("parsed XML tree %s", tree) ## debug("parsed root node %s", tree.getroot()) ## debug("root node tag %s", tree.getroot().tag) ## return llsd.to_python(tree.getroot()) def do_HEAD(self): self.do_GET(withdata=False) def do_GET(self, withdata=True): # Of course, don't attempt to read data. try: self.answer(dict(reply="success", status=200, reason="Your GET operation worked")) except self.ignore_exceptions, e: print >> sys.stderr, "Exception during GET (ignoring): %s" % str(e) def do_POST(self): # Read the provided POST data. # self.answer(self.read()) try: self.answer(dict(reply="success", status=200, reason=self.read())) except self.ignore_exceptions, e: print >> sys.stderr, "Exception during POST (ignoring): %s" % str(e) def do_PUT(self): # Read the provided PUT data. # self.answer(self.read()) try: self.answer(dict(reply="success", status=200, reason=self.read())) except self.ignore_exceptions, e: print >> sys.stderr, "Exception during PUT (ignoring): %s" % str(e) def answer(self, data, withdata=True): debug("%s.answer(%s): self.path = %r", self.__class__.__name__, data, self.path) if "/sleep/" in self.path: time.sleep(30) if "fail" in self.path: status = data.get("status", 500) # self.responses maps an int status to a (short, long) pair of # strings. We want the longer string. That's why we pass a string # pair to get(): the [1] will select the second string, whether it # came from self.responses or from our default pair. reason = data.get("reason", self.responses.get(status, ("fail requested", "Your request specified failure status %s " "without providing a reason" % status))[1]) debug("fail requested: %s: %r", status, reason) self.send_error(status, reason) if "/reflect/" in self.path: self.reflect_headers() self.end_headers() elif "/bug2295/" in self.path: # Test for https://jira.secondlife.com/browse/BUG-2295 # # Client can receive a header indicating data should # appear in the body without actually getting the body. # Library needs to defend against this case. # body = None if "/bug2295/0/" in self.path: self.send_response(206) self.send_header("Content-Range", "bytes 0-75/2983") elif "/bug2295/1/" in self.path: self.send_response(206) self.send_header("Content-Range", "bytes 0-75/*") elif "/bug2295/2/" in self.path: self.send_response(206) self.send_header("Content-Range", "bytes 0-75/2983") self.send_header("Content-Length", "0") elif "/bug2295/00000012/0/" in self.path: self.send_response(206) self.send_header("Content-Range", "bytes 0-75/2983") self.send_header("Content-Length", "76") elif "/bug2295/inv_cont_range/0/" in self.path: self.send_response(206) self.send_header("Content-Range", "bytes 0-75/2983") body = "Some text, but not enough." else: # Unknown request self.send_response(400) if "/reflect/" in self.path: self.reflect_headers() self.send_header("Content-type", "text/plain") self.end_headers() if body: self.wfile.write(body) else: # Normal response path data = data.copy() # we're going to modify # Ensure there's a "reply" key in data, even if there wasn't before data["reply"] = data.get("reply", llsd.LLSD("success")) response = llsd.format_xml(data) debug("success: %s", response) self.send_response(200) if "/reflect/" in self.path: self.reflect_headers() self.send_header("Content-type", "application/llsd+xml") self.send_header("Content-Length", str(len(response))) self.send_header("X-LL-Special", "Mememememe"); self.end_headers() if withdata: self.wfile.write(response) def reflect_headers(self): for name in self.headers.keys(): # print "Header: %s: %s" % (name, self.headers[name]) self.send_header("X-Reflect-" + name, self.headers[name]) if not VERBOSE: # When VERBOSE is set, skip both these overrides because they exist to # suppress output. def log_request(self, code, size=None): # For present purposes, we don't want the request splattered onto # stderr, as it would upset devs watching the test run pass def log_error(self, format, *args): # Suppress error output as well pass class Server(ThreadingMixIn, HTTPServer): # This pernicious flag is on by default in HTTPServer. But proper # operation of freeport() absolutely depends on it being off. allow_reuse_address = False # Override of BaseServer.handle_error(). Not too interested # in errors and the default handler emits a scary traceback # to stderr which annoys some. Disable this override to get # default behavior which *shouldn't* cause the program to return # a failure status. def handle_error(self, request, client_address): print '-'*40 print 'Ignoring exception during processing of request from', print client_address print '-'*40 if __name__ == "__main__": do_valgrind = False path_search = False options, args = getopt.getopt(sys.argv[1:], "V", ["valgrind"]) for option, value in options: if option == "-V" or option == "--valgrind": do_valgrind = True # Instantiate a Server(TestHTTPRequestHandler) on the first free port # in the specified port range. Doing this inline is better than in a # daemon thread: if it blows up here, we'll get a traceback. If it blew up # in some other thread, the traceback would get eaten and we'd run the # subject test program anyway. httpd, port = freeport(xrange(8000, 8020), lambda port: Server(('127.0.0.1', port), TestHTTPRequestHandler)) # Pass the selected port number to the subject test program via the # environment. We don't want to impose requirements on the test program's # command-line parsing -- and anyway, for C++ integration tests, that's # performed in TUT code rather than our own. os.environ["LL_TEST_PORT"] = str(port) debug("$LL_TEST_PORT = %s", port) if do_valgrind: args = ["valgrind", "--log-file=./valgrind.log"] + args path_search = True sys.exit(run(server=Thread(name="httpd", target=httpd.serve_forever), use_path=path_search, *args))