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gerrit.named-data.net / ndnSIM / 3ffe66d4efafd2e659e1371b22790c633c28a848 / . / tools / nfd-status-http-server.py
blob: 3d34d7381f0217f9ceafd0eb3fdba6167b1a912b [file] [log] [blame]
Chengyu Fanb07788a2014-03-31 12:15:36 -0600[diff] [blame]1#!/usr/bin/env python2.7
Alexander Afanasyev9bcbc7c2014-04-06 19:37:37 -0700[diff] [blame]2# -*- Mode: python; py-indent-offset: 4; indent-tabs-mode: nil; coding: utf-8; -*-
3
4"""
5Copyright (c) 2014 Regents of the University of California,
6 Arizona Board of Regents,
7 Colorado State University,
8 University Pierre & Marie Curie, Sorbonne University,
9 Washington University in St. Louis,
10 Beijing Institute of Technology
11
12This file is part of NFD (Named Data Networking Forwarding Daemon).
13See AUTHORS.md for complete list of NFD authors and contributors.
14
15NFD is free software: you can redistribute it and/or modify it under the terms
16of the GNU General Public License as published by the Free Software Foundation,
17either version 3 of the License, or (at your option) any later version.
18
19NFD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
20without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
21PURPOSE. See the GNU General Public License for more details.
22
23You should have received a copy of the GNU General Public License along with
24NFD, e.g., in COPYING.md file. If not, see <http://www.gnu.org/licenses/>.
25"""
Chengyu Fanb07788a2014-03-31 12:15:36 -0600[diff] [blame]26
Chengyu Fan45d1a762014-07-08 14:21:32 -0600[diff] [blame]27from BaseHTTPServer import HTTPServer
28from SimpleHTTPServer import SimpleHTTPRequestHandler
Chengyu Fanb07788a2014-03-31 12:15:36 -0600[diff] [blame]29from SocketServer import ThreadingMixIn
30import sys
Chengyu Fan30aa2072014-07-20 13:52:32 -0600[diff] [blame]31import subprocess
Chengyu Fanb07788a2014-03-31 12:15:36 -0600[diff] [blame]32import StringIO
33import urlparse
34import logging
35import cgi
36import argparse
Chengyu Fane25b0f02014-04-05 21:42:40 -0600[diff] [blame]37import socket
Chengyu Fan45d1a762014-07-08 14:21:32 -0600[diff] [blame]38import os
Chengyu Fanb07788a2014-03-31 12:15:36 -0600[diff] [blame]39
40
Chengyu Fan45d1a762014-07-08 14:21:32 -0600[diff] [blame]41class StatusHandler(SimpleHTTPRequestHandler):
Chengyu Fanb07788a2014-03-31 12:15:36 -0600[diff] [blame]42 """ The handler class to handle requests."""
43 def do_GET(self):
44 # get the url info to decide how to respond
45 parsedPath = urlparse.urlparse(self.path)
Chengyu Fan45d1a762014-07-08 14:21:32 -0600[diff] [blame]46 if parsedPath.path == "/":
47 # get current nfd status, and use it as result message
48 (res, resultMessage) = self.getNfdStatus()
49 self.send_response(200)
50 if res == 0:
51 self.send_header("Content-type", "text/xml; charset=UTF-8")
52 else:
53 self.send_header("Content-type", "text/html; charset=UTF-8")
54
55 self.end_headers()
56 self.wfile.write(resultMessage)
57 elif parsedPath.path == "/robots.txt" and self.server.robots == True:
58 resultMessage = ""
Chengyu Fanb07788a2014-03-31 12:15:36 -0600[diff] [blame]59 self.send_response(200)
60 self.send_header("Content-type", "text/plain")
Chengyu Fan45d1a762014-07-08 14:21:32 -0600[diff] [blame]61 self.end_headers()
62 self.wfile.write(resultMessage)
Chengyu Fanb07788a2014-03-31 12:15:36 -0600[diff] [blame]63 else:
Chengyu Fan45d1a762014-07-08 14:21:32 -0600[diff] [blame]64 SimpleHTTPRequestHandler.do_GET(self)
Chengyu Fanb07788a2014-03-31 12:15:36 -0600[diff] [blame]65
Chengyu Fanb07788a2014-03-31 12:15:36 -0600[diff] [blame]66 def log_message(self, format, *args):
67 if self.server.verbose:
Chengyu Fane25b0f02014-04-05 21:42:40 -0600[diff] [blame]68 logging.info("%s - %s\n" % (self.address_string(),
Chengyu Fan45d1a762014-07-08 14:21:32 -0600[diff] [blame]69 format % args))
Chengyu Fanb07788a2014-03-31 12:15:36 -0600[diff] [blame]70
71 def getNfdStatus(self):
72 """
Chengyu Fan45d1a762014-07-08 14:21:32 -0600[diff] [blame]73 This function is to call nfd-status command
74 to get xml format output
Chengyu Fanb07788a2014-03-31 12:15:36 -0600[diff] [blame]75 """
Alexander Afanasyevb4bac922014-11-03 13:56:01 -0800[diff] [blame]76 sp = subprocess.Popen(['nfd-status', '-x'], stdout=subprocess.PIPE, close_fds=True)
77 output = sp.communicate()[0]
78 if sp.returncode == 0:
Chengyu Fan45d1a762014-07-08 14:21:32 -0600[diff] [blame]79 # add the xml-stylesheet processing instruction after the 1st '>' symbol
80 newLineIndex = output.index('>') + 1
81 resultStr = output[:newLineIndex]\
82 + "<?xml-stylesheet type=\"text/xsl\" href=\"nfd-status.xsl\"?>"\
83 + output[newLineIndex:]
Alexander Afanasyevb4bac922014-11-03 13:56:01 -0800[diff] [blame]84 return (sp.returncode, resultStr)
Chengyu Fanb07788a2014-03-31 12:15:36 -0600[diff] [blame]85 else:
Chengyu Fan45d1a762014-07-08 14:21:32 -0600[diff] [blame]86 htmlStr = '<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional'\
87 + '//EN" "http://www.w3.org/TR/html4/loose.dtd">\n'\
88 + '<html><head><title>NFD status</title>'\
89 + '<meta http-equiv="Content-type" content="text/html;'\
90 + 'charset=UTF-8"></head>\n<body>'
Chengyu Fanb07788a2014-03-31 12:15:36 -0600[diff] [blame]91 # return connection error code
92 htmlStr = htmlStr + "<p>Cannot connect to NFD,"\
Alexander Afanasyevb4bac922014-11-03 13:56:01 -0800[diff] [blame]93 + " Code = " + str(sp.returncode) + "</p>\n"
Chengyu Fan45d1a762014-07-08 14:21:32 -0600[diff] [blame]94 htmlStr = htmlStr + "</body></html>"
Alexander Afanasyevb4bac922014-11-03 13:56:01 -0800[diff] [blame]95 return (sp.returncode, htmlStr)
Chengyu Fanb07788a2014-03-31 12:15:36 -0600[diff] [blame]96
Chengyu Fane25b0f02014-04-05 21:42:40 -0600[diff] [blame]97class ThreadHttpServer(ThreadingMixIn, HTTPServer):
98 """ Handle requests using threads """
Chengyu Fanb07788a2014-03-31 12:15:36 -0600[diff] [blame]99 def __init__(self, server, handler, verbose=False, robots=False):
Chengyu Fane25b0f02014-04-05 21:42:40 -0600[diff] [blame]100 serverAddr = server[0]
101 # socket.AF_UNSPEC is not supported, check whether it is v6 or v4
102 ipType = self.getIpType(serverAddr)
103 if ipType == socket.AF_INET6:
104 self.address_family = socket.AF_INET6
105 elif ipType == socket.AF_INET:
106 self.address_family == socket.AF_INET
107 else:
108 logging.error("The input IP address is neither IPv6 nor IPv4")
109 sys.exit(2)
110
Chengyu Fanb07788a2014-03-31 12:15:36 -0600[diff] [blame]111 try:
112 HTTPServer.__init__(self, server, handler)
113 except Exception as e:
114 logging.error(str(e))
115 sys.exit(2)
116 self.verbose = verbose
117 self.robots = robots
118
Chengyu Fane25b0f02014-04-05 21:42:40 -0600[diff] [blame]119 def getIpType(self, ipAddr):
120 """ Get ipAddr's address type """
121 # if ipAddr is an IPv6 addr, return AF_INET6
122 try:
123 socket.inet_pton(socket.AF_INET6, ipAddr)
124 return socket.AF_INET6
125 except socket.error:
126 pass
127 # if ipAddr is an IPv4 addr return AF_INET, if not, return None
128 try:
129 socket.inet_pton(socket.AF_INET, ipAddr)
130 return socket.AF_INET
131 except socket.error:
132 return None
133
Chengyu Fanb07788a2014-03-31 12:15:36 -0600[diff] [blame]134
135# main function to start
136def httpServer():
137 parser = argparse.ArgumentParser()
138 parser.add_argument("-p", type=int, metavar="port number",
139 help="Specify the HTTP server port number, default is 8080.",
140 dest="port", default=8080)
Chengyu Fane25b0f02014-04-05 21:42:40 -0600[diff] [blame]141 # if address is not specified, use 127.0.0.1
142 parser.add_argument("-a", default="127.0.0.1", metavar="IP address", dest="addr",
Chengyu Fanb07788a2014-03-31 12:15:36 -0600[diff] [blame]143 help="Specify the HTTP server IP address.")
144 parser.add_argument("-r", default=False, dest="robots", action="store_true",
145 help="Enable HTTP robots to crawl; disabled by default.")
Alexander Afanasyev8a093762014-07-16 18:43:09 -0700[diff] [blame]146 parser.add_argument("-f", default="@DATAROOTDIR@/ndn", metavar="Server Directory", dest="serverDir",
147 help="Specify the working directory of nfd-status-http-server, default is @DATAROOTDIR@/ndn.")
Chengyu Fanb07788a2014-03-31 12:15:36 -0600[diff] [blame]148 parser.add_argument("-v", default=False, dest="verbose", action="store_true",
149 help="Verbose mode.")
Alexander Afanasyevb47d5382014-05-05 14:35:03 -0700[diff] [blame]150 parser.add_argument("--version", default=False, dest="version", action="store_true",
151 help="Show version and exit")
Chengyu Fanb07788a2014-03-31 12:15:36 -0600[diff] [blame]152
153 args = vars(parser.parse_args())
Alexander Afanasyevb47d5382014-05-05 14:35:03 -0700[diff] [blame]154
155 if args['version']:
156 print "@VERSION@"
157 return
158
Chengyu Fanb07788a2014-03-31 12:15:36 -0600[diff] [blame]159 localPort = args["port"]
160 localAddr = args["addr"]
161 verbose = args["verbose"]
162 robots = args["robots"]
Chengyu Fan45d1a762014-07-08 14:21:32 -0600[diff] [blame]163 serverDirectory = args["serverDir"]
164
165 os.chdir(serverDirectory)
Chengyu Fanb07788a2014-03-31 12:15:36 -0600[diff] [blame]166
167 # setting log message format
168 logging.basicConfig(format='%(asctime)s [%(levelname)s] %(message)s',
169 level=logging.INFO)
170
Chengyu Fane25b0f02014-04-05 21:42:40 -0600[diff] [blame]171 # if port is invalid, exit
Chengyu Fanb07788a2014-03-31 12:15:36 -0600[diff] [blame]172 if localPort <= 0 or localPort > 65535:
173 logging.error("Specified port number is invalid")
174 sys.exit(2)
175
Chengyu Fane25b0f02014-04-05 21:42:40 -0600[diff] [blame]176 httpd = ThreadHttpServer((localAddr, localPort), StatusHandler,
Chengyu Fanb07788a2014-03-31 12:15:36 -0600[diff] [blame]177 verbose, robots)
Chengyu Fane25b0f02014-04-05 21:42:40 -0600[diff] [blame]178 httpServerAddr = ""
179 if httpd.address_family == socket.AF_INET6:
180 httpServerAddr = "http://[%s]:%s" % (httpd.server_address[0],
181 httpd.server_address[1])
182 else:
183 httpServerAddr = "http://%s:%s" % (httpd.server_address[0],
184 httpd.server_address[1])
Chengyu Fanb07788a2014-03-31 12:15:36 -0600[diff] [blame]185
Chengyu Fane25b0f02014-04-05 21:42:40 -0600[diff] [blame]186 logging.info("Server started - at %s" % httpServerAddr)
Chengyu Fanb07788a2014-03-31 12:15:36 -0600[diff] [blame]187
188 try:
189 httpd.serve_forever()
190 except KeyboardInterrupt:
191 pass
192
Chengyu Fanb07788a2014-03-31 12:15:36 -0600[diff] [blame]193 httpd.server_close()
194
Chengyu Fane25b0f02014-04-05 21:42:40 -0600[diff] [blame]195 logging.info("Server stopped")
Chengyu Fanb07788a2014-03-31 12:15:36 -0600[diff] [blame]196
197
198if __name__ == '__main__':
199 httpServer()