1153 lines
36 KiB
Python
Executable File
1153 lines
36 KiB
Python
Executable File
#!/usr/bin/python
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# -*- coding: utf-8 -*-
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# Licensed under GNU General Public License v3 or later
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# Written by Sebastian Lohff (seba@seba-geek.de)
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# http://seba-geek.de/stuff/servefile/
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from __future__ import print_function
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__version__ = '0.4.3'
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import argparse
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import base64
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import cgi
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import datetime
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import mimetypes
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import urllib
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import os
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import posixpath
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import re
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import select
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import socket
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from subprocess import Popen, PIPE
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import sys
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import time
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# fix imports for python2/python3
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try:
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import BaseHTTPServer
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import SocketServer
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except ImportError:
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# both have different names in python3
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import http.server as BaseHTTPServer
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import socketserver as SocketServer
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# only activate SSL if available
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HAVE_SSL = False
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try:
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from OpenSSL import SSL, crypto
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HAVE_SSL = True
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except ImportError:
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pass
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def getDateStrNow():
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""" Get the current time formatted for HTTP header """
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now = datetime.datetime.fromtimestamp(time.mktime(time.gmtime()))
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return now.strftime("%a, %d %b %Y %H:%M:%S GMT")
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class FileBaseHandler(BaseHTTPServer.BaseHTTPRequestHandler):
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fileName = None
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blockSize = 1024 * 1024
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server_version = "servefile/" + __version__
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def checkAndDoRedirect(self, fileName=None):
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""" If request didn't request self.fileName redirect to self.fileName.
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Returns True if a redirect was issued. """
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if not fileName:
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fileName = self.fileName
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if urllib.unquote(self.path) != "/" + fileName:
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self.send_response(302)
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self.send_header('Location', '/' + fileName)
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self.end_headers()
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return True
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return False
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def sendContentHeaders(self, fileName, fileLength, lastModified=None):
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""" Send default Content headers for given fileName and fileLength.
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If no lastModified is given the current date is taken. If
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fileLength is lesser than 0 no Content-Length will be sent."""
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if not lastModified:
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lastModified = getDateStrNow()
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if fileLength >= 0:
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self.send_header('Content-Length', str(fileLength))
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self.send_header('Connection', 'close')
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self.send_header('Last-Modified', lastModified)
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self.send_header('Content-Type', 'application/octet-stream')
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self.send_header('Content-Disposition', 'attachment; filename="%s"' % fileName)
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self.send_header('Content-Transfer-Encoding', 'binary')
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def isRangeRequest(self):
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""" Return True if partial content is requestet """
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return "Range" in self.headers
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def handleRangeRequest(self, fileLength):
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""" Find out and handle continuing downloads.
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Returns a tuple of a boolean, if this is a valid range request,
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and a range. When the requested range is out of range, range is
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set to None.
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"""
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fromto = None
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if self.isRangeRequest():
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cont = self.headers.get("Range").split("=")
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if len(cont) > 1 and cont[0] == 'bytes':
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fromto = cont[1].split('-')
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if len(fromto) > 1:
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if fromto[1] == '':
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fromto[1] = fileLength - 1
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try:
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fromto[0] = int(fromto[0])
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fromto[1] = int(fromto[1])
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except:
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return (False, None)
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if fromto[0] >= fileLength or fromto[0] < 0 or fromto[1] >= fileLength or fromto[1]-fromto[0] < 0:
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# oops, already done! (requested range out of range)
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self.send_response(416)
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self.send_header('Content-Range', 'bytes */%d' % fileLength)
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self.end_headers()
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return (True, None)
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return (True, fromto)
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# broken request or no range header
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return (False, None)
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def sendFile(self, filePath, fileLength=None, lastModified=None):
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""" Send file with continuation support.
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filePath: path to file to be sent
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fileLength: length of file (if None is given this will be found out)
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lastModified: time the file was last modified, None for "now"
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"""
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if not fileLength:
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fileLength = os.stat(filePath).st_size
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(responseCode, myfile) = self.getFileHandle(filePath)
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if not myfile:
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self.send_response(responseCode)
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self.end_headers()
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return
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(continueDownload, fromto) = self.handleRangeRequest(fileLength)
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if continueDownload:
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if not fromto:
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# we are done
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return True
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# now we can wind the file *brrrrrr*
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myfile.seek(fromto[0])
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if fromto != None:
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self.send_response(216)
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self.send_header('Content-Range', 'bytes %d-%d/%d' % (fromto[0], fromto[1], fileLength))
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fileLength = fromto[1] - fromto[0] + 1
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else:
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self.send_response(200)
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fileName = self.fileName
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if not fileName:
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fileName = os.path.basename(filePath)
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self.sendContentHeaders(fileName, fileLength, lastModified)
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self.end_headers()
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block = self.getChunk(myfile, fromto)
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while block:
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self.wfile.write(block)
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block = self.getChunk(myfile, fromto)
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myfile.close()
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print("%s finished downloading %s" % (self.client_address[0], filePath))
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return True
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def getChunk(self, myfile, fromto):
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if fromto and myfile.tell()+self.blockSize >= fromto[1]:
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readsize = fromto[1]-myfile.tell()+1
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else:
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readsize = self.blockSize
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return myfile.read(readsize)
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def getFileHandle(self, path):
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""" Get handle to a file.
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Return a tuple of HTTP response code and file handle.
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If the handle couldn't be acquired it is set to None
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and an appropriate HTTP error code is returned.
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"""
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myfile = None
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responseCode = 200
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try:
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myfile = open(path, 'rb')
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except IOError as e:
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responseCode = self.getResponseForErrno(e.errno)
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return (responseCode, myfile)
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def getFileLength(self, path):
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""" Get length of a file.
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Return a tuple of HTTP response code and file length.
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If filelength couldn't be determined, it is set to -1
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and an appropriate HTTP error code is returned.
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"""
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fileSize = -1
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responseCode = 200
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try:
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fileSize = os.stat(path).st_size
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except IOError as e:
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responseCode = self.getResponseForErrno(e.errno)
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return (responseCode, fileSize)
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def getResponseForErrno(self, errno):
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""" Return HTTP response code for an IOError errno """
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if errno == errno.ENOENT:
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return 404
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elif errno == errno.EACCESS:
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return 403
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else:
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return 500
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class FileHandler(FileBaseHandler):
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filePath = "/dev/null"
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fileLength = 0
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startTime = getDateStrNow()
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def do_HEAD(self):
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if self.checkAndDoRedirect():
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return
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self.send_response(200)
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self.sendContentHeaders(self.fileName, self.fileLength, self.startTime)
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self.end_headers()
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def do_GET(self):
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if self.checkAndDoRedirect():
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return
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self.sendFile(self.filePath, self.fileLength, self.startTime)
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class TarFileHandler(FileBaseHandler):
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target = None
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compression = "none"
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compressionMethods = ("none", "gzip", "bzip2")
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def do_HEAD(self):
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if self.checkAndDoRedirect():
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return
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self.send_response(200)
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self.sendContentHeaders(self.fileName, -1)
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self.end_headers()
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def do_GET(self):
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if self.checkAndDoRedirect():
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return
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tarCmd = Popen(self.getCompressionCmd(), stdout=PIPE)
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# give the process a short time to find out if it can
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# pack/compress the file
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time.sleep(0.05)
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if tarCmd.poll() != None and tarCmd.poll() != 0:
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# something went wrong
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print("Error while compressing '%s'. Aborting request." % self.target)
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self.send_response(500)
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self.end_headers()
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return
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self.send_response(200)
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self.sendContentHeaders(self.fileName, -1)
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self.end_headers()
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block = True
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while block and block != '':
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block = tarCmd.stdout.read(self.blockSize)
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if block and block != '':
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self.wfile.write(block)
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print("%s finished downloading" % (self.client_address[0]))
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def getCompressionCmd(self):
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if self.compression == "none":
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cmd = ["tar", "-c"]
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elif self.compression == "gzip":
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cmd = ["tar", "-cz"]
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elif self.compression == "bzip2":
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cmd = ["tar", "-cj"]
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else:
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raise ValueError("Unknown compression mode '%s'." % self.compression)
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dirname = os.path.basename(self.target.rstrip("/"))
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chdirTo = os.path.dirname(self.target.rstrip("/"))
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if chdirTo != '':
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cmd.extend(["-C", chdirTo])
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cmd.append(dirname)
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return cmd
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@staticmethod
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def getCompressionExt():
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if TarFileHandler.compression == "none":
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return ".tar"
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elif TarFileHandler.compression == "gzip":
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return ".tar.gz"
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elif TarFileHandler.compression == "bzip2":
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return ".tar.bz2"
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raise ValueError("Unknown compression mode '%s'." % TarFileHandler.compression)
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class DirListingHandler(FileBaseHandler):
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""" DOCUMENTATION MISSING """
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targetDir = None
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def do_HEAD(self):
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self.getFileOrDirectory(head=True)
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def do_GET(self):
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self.getFileOrDirectory(head=False)
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def getFileOrDirectory(self, head=False):
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""" Send file or directory index, depending on requested path """
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path = self.getCleanPath()
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if os.path.isdir(path):
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if not self.path.endswith('/'):
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self.send_response(301)
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self.send_header("Location", self.path + '/')
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self.end_headers()
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else:
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self.sendDirectoryListing(path, head)
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elif os.path.isfile(path):
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if head:
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(response, length) = self.getFileLength(path)
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if length < 0:
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self.send_response(response)
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self.end_headers()
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else:
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self.send_response(200)
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self.sendContentHeaders(self, path, length)
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self.end_headers()
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else:
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self.sendFile(path, head)
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else:
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self.send_response(404)
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errorMsg = """<!DOCTYPE html><html>
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<head><title>404 Not Found</title></head>
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<body>
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<h1>Not Found</h1>
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<p>The requestet URL %s was not found on this server</p>
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<p><a href="/">Back to /</a>
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</body>
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</html>""" % self.escapeHTML(urllib.unquote(self.path))
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self.send_header("Content-Length", str(len(errorMsg)))
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self.send_header('Connection', 'close')
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self.end_headers()
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if not head:
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self.wfile.write(errorMsg)
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def escapeHTML(self, htmlstr):
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entities = [("<", "<"), (">", ">")]
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for src, dst in entities:
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htmlstr = htmlstr.replace(src, dst)
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return htmlstr
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def _appendToListing(self, content, item, itemPath, stat, is_dir):
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# Strings to display on directory listing
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lastModifiedDate = datetime.datetime.fromtimestamp(stat.st_mtime)
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lastModified = lastModifiedDate.strftime("%Y-%m-%d %H:%M")
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fileSize = "%.1f%s" % self.convertSize(stat.st_size)
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(fileType, _) = mimetypes.guess_type(itemPath)
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if not fileType:
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fileType = "-"
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if is_dir:
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item += "/"
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fileType = "Directory"
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content.append("""
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<tr>
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<td class="name"><a href="%s">%s</a></td>
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<td class="last-modified">%s</td>
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<td class="size">%s</td>
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<td class="type">%s</td>
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</tr>
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""" % (urllib.quote(item), item, lastModified, fileSize, fileType))
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def sendDirectoryListing(self, path, head):
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""" Generate a directorylisting for path and send it """
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header = """<!DOCTYPE html>
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<title>Index of %(path)s</title>
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<style type="text/css">
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a { text-decoration: none; color: #0000BB;}
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a:visited { color: #000066;}
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a:hover, a:focus, a:active { text-decoration: underline; color: #cc0000; text-indent: 5px; }
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body { background-color: #eaeaea; padding: 20px 0; margin: 0; font: 400 13px/1.2em Arial, sans-serif; }
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h1 { margin: 0 10px 12px 10px; font-family: Arial, sans-serif; }
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div.content { background-color: white; border-color: #ccc; border-width: 1px 0; border-style: solid; padding: 10px 10px 15px 10px; }
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td { padding-right: 15px; text-align: left; font-family: monospace; }
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th { font-weight: bold; font-size: 115%%; padding: 0 15px 5px 0; text-align: left; }
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.size { text-align: right; }
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.footer { font: 12px monospace; color: #333; margin: 5px 10px 0; }
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.footer, h1 { text-shadow: 0 1px 0 white; }
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</style>
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</head>
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<body>
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<h1>Index of %(path)s</h1>
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<div class="content">
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<table summary="Directory Listing">
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<thead>
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<tr>
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<th class="name">Name</th>
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<th class="lastModified">Last Modified</th>
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<th class="size">Size</th>
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<th class="type">Type</th>
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</tr>
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</thead>
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<tbody>
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""" % {'path': posixpath.normpath(urllib.unquote(self.path))}
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footer = """</tbody></table></div>
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<div class="footer"><a href="http://seba-geek.de/stuff/servefile/">servefile %(version)s</a></div>
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</body>
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</html>""" % {'version': __version__}
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content = []
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dir_items = list()
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file_items = list()
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for item in [".."] + sorted(os.listdir(path), key=lambda x:x.lower()):
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# create path to item
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itemPath = os.path.join(path, item)
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# Hide "../" in listing of the (virtual) root directory
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if item == '..' and path == DirListingHandler.targetDir.rstrip('/') + '/':
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continue
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# try to stat file for size, last modified... continue on error
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stat = None
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try:
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stat = os.stat(itemPath)
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except IOError:
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continue
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|
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if os.path.isdir(itemPath):
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target_items = dir_items
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else:
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target_items = file_items
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target_items.append((item, itemPath, stat))
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# Directories first, then files
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for (tuple_list, is_dir) in (
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(dir_items, True),
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(file_items, False),
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):
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for (item, itemPath, stat) in tuple_list:
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self._appendToListing(content, item, itemPath, stat, is_dir=is_dir)
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listing = header + "\n".join(content) + footer
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# write listing
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self.send_response(200)
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self.send_header("Content-Type", "text/html")
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if head:
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self.end_headers()
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return
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self.send_header("Content-Length", str(len(listing)))
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self.send_header('Connection', 'close')
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self.end_headers()
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self.wfile.write(listing)
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|
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def convertSize(self, size):
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for ext in "KMGT":
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size /= 1024.0
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if size < 1024.0:
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break
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if ext == "K" and size < 0.1:
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size = 0.1
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return (size, ext.strip())
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|
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def getCleanPath(self):
|
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urlPath = posixpath.normpath(urllib.unquote(self.path)).strip("/")
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path = os.path.join(self.targetDir, urlPath)
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return path
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|
|
|
|
|
class FilePutter(BaseHTTPServer.BaseHTTPRequestHandler):
|
|
""" Simple HTTP Server which allows uploading to a specified directory
|
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either via multipart/form-data or POST/PUT requests containing the file.
|
|
"""
|
|
|
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targetDir = None
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maxUploadSize = 0
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blockSize = 1024 * 1024
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uploadPage = """
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<!docype html>
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<html>
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<form action="/" method="post" enctype="multipart/form-data">
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<label for="file">Filename:</label>
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<input type="file" name="file" id="file" />
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<br />
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<input type="submit" name="submit" value="Upload" />
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</form>
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</html>
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"""
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|
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def do_GET(self):
|
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""" Answer every GET request with the upload form """
|
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self.sendResponse(200, self.uploadPage)
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|
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def do_POST(self):
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""" Upload a file via POST
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|
|
|
If the content-type is multipart/form-data it checks for the file
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field and saves the data to disk. For other content-types it just
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calls do_PUT and is handled as such except for the http response code.
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|
|
Files can be uploaded with wget --post-file=path/to/file <url> or
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curl -X POST -d @file <url> .
|
|
"""
|
|
length = self.getContentLength()
|
|
if length < 0:
|
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return
|
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ctype = self.headers.getheader('Content-Type')
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|
|
|
# check for multipart/form-data.
|
|
if not (ctype and ctype.lower().startswith("multipart/form-data")):
|
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# not a normal multipart request ==> handle as PUT request
|
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return self.do_PUT(fromPost=True)
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|
|
# create FieldStorage object for multipart parsing
|
|
env = os.environ
|
|
env['REQUEST_METHOD'] = "POST"
|
|
fstorage = cgi.FieldStorage(fp=self.rfile, headers=self.headers, environ=env)
|
|
if not "file" in fstorage:
|
|
self.sendResponse(400, "No file found in request.")
|
|
return
|
|
|
|
destFileName = self.getTargetName(fstorage["file"].filename)
|
|
if destFileName == "":
|
|
self.sendResponse(400, "Filename was empty or invalid")
|
|
return
|
|
|
|
# write file down to disk, send a 200 afterwards
|
|
target = open(destFileName, "w")
|
|
bytesLeft = length
|
|
while bytesLeft > 0:
|
|
bytesToRead = min(self.blockSize, bytesLeft)
|
|
target.write(fstorage["file"].file.read(bytesToRead))
|
|
bytesLeft -= bytesToRead
|
|
target.close()
|
|
self.sendResponse(200, "OK! Thanks for uploading")
|
|
print("Received file '%s' from %s." % (destFileName, self.client_address[0]))
|
|
|
|
def do_PUT(self, fromPost=False):
|
|
""" Upload a file via PUT
|
|
|
|
The request path is used as filename, so uploading a file to the url
|
|
http://host:8080/testfile will cause the file to be named testfile. If
|
|
no filename is given, a random name will be generated.
|
|
|
|
Files can be uploaded with e.g. curl -X POST -d @file <url> .
|
|
"""
|
|
length = self.getContentLength()
|
|
if length < 0:
|
|
return
|
|
|
|
fileName = urllib.unquote(self.path)
|
|
if fileName == "/":
|
|
# if no filename was given we have to generate one
|
|
fileName = str(time.time())
|
|
|
|
cleanFileName = self.getTargetName(fileName)
|
|
if cleanFileName == "":
|
|
self.sendResponse(400, "Filename was invalid")
|
|
return
|
|
|
|
# Sometimes clients want to be told to continue with their transfer
|
|
if self.headers.getheader("Expect") == "100-continue":
|
|
self.send_response(100)
|
|
self.end_headers()
|
|
|
|
target = open(cleanFileName, "w")
|
|
bytesLeft = int(self.headers['Content-Length'])
|
|
while bytesLeft > 0:
|
|
bytesToRead = min(self.blockSize, bytesLeft)
|
|
target.write(self.rfile.read(bytesToRead))
|
|
bytesLeft -= bytesToRead
|
|
target.close()
|
|
self.sendResponse(200 if fromPost else 201, "OK!")
|
|
|
|
def getContentLength(self):
|
|
length = 0
|
|
try:
|
|
length = int(self.headers['Content-Length'])
|
|
except (ValueError, KeyError):
|
|
pass
|
|
if length <= 0:
|
|
self.sendResponse(411, "Content-Length was invalid or not set.")
|
|
return -1
|
|
if self.maxUploadSize > 0 and length > self.maxUploadSize:
|
|
self.sendResponse(413, "Your file was too big! Maximum allowed size is %d byte. <a href=\"/\">back</a>" % self.maxUploadSize)
|
|
return -1
|
|
return length
|
|
|
|
def sendResponse(self, code, msg):
|
|
""" Send a HTTP response with HTTP statuscode code and message msg,
|
|
providing the correct content-length.
|
|
"""
|
|
self.send_response(code)
|
|
self.send_header('Content-Type', 'text/html')
|
|
self.send_header('Content-Length', str(len(msg)))
|
|
self.send_header('Connection', 'close')
|
|
self.end_headers()
|
|
self.wfile.write(msg)
|
|
|
|
def getTargetName(self, fname):
|
|
""" Generate a clean and secure filename.
|
|
|
|
This function takes a filename and strips all the slashes out of it.
|
|
If the file already exists in the target directory, a (NUM) will be
|
|
appended, so no file will be overwritten.
|
|
"""
|
|
cleanFileName = fname.replace("/", "")
|
|
if cleanFileName == "":
|
|
return ""
|
|
destFileName = os.path.join(self.targetDir, cleanFileName)
|
|
if not os.path.exists(destFileName):
|
|
return destFileName
|
|
else:
|
|
i = 1
|
|
extraDestFileName = destFileName + "(%s)" % i
|
|
while os.path.exists(extraDestFileName):
|
|
i += 1
|
|
extraDestFileName = destFileName + "(%s)" % i
|
|
return extraDestFileName
|
|
# never reached
|
|
|
|
class ThreadedHTTPServer(SocketServer.ThreadingMixIn, BaseHTTPServer.HTTPServer):
|
|
def handle_error(self, request, client_address):
|
|
print("%s ABORTED transmission (Reason: %s)" % (client_address[0], sys.exc_value))
|
|
|
|
|
|
def catchSSLErrors(BaseSSLClass):
|
|
""" Class decorator which catches SSL errors and prints them. """
|
|
class X(BaseSSLClass):
|
|
def handle_one_request(self, *args, **kwargs):
|
|
try:
|
|
BaseSSLClass.handle_one_request(self, *args, **kwargs)
|
|
except SSL.Error as e:
|
|
if str(e) == "":
|
|
print("%s SSL error (empty error message)" % (self.client_address[0],))
|
|
else:
|
|
print("%s SSL error: %s" % (self.client_address[0], e))
|
|
return X
|
|
|
|
|
|
class SecureThreadedHTTPServer(ThreadedHTTPServer):
|
|
def __init__(self, pubKey, privKey, server_address, RequestHandlerClass, bind_and_activate=True):
|
|
ThreadedHTTPServer.__init__(self, server_address, RequestHandlerClass, bind_and_activate)
|
|
|
|
# choose TLS1.2 or TLS1, if available
|
|
sslMethod = None
|
|
if hasattr(SSL, "TLSv1_2_METHOD"):
|
|
sslMethod = SSL.TLSv1_2_METHOD
|
|
elif hasattr(SSL, "TLSv1_METHOD"):
|
|
sslMethod = SSL.TLSv1_METHOD
|
|
else:
|
|
# only SSLv23 available
|
|
print("Warning: Only SSLv2/SSLv3 is available, connection might be insecure.")
|
|
sslMethod = SSL.SSLv23_METHOD
|
|
|
|
ctx = SSL.Context(sslMethod)
|
|
if type(pubKey) is crypto.X509 and type(privKey) is crypto.PKey:
|
|
ctx.use_certificate(pubKey)
|
|
ctx.use_privatekey(privKey)
|
|
else:
|
|
ctx.use_certificate_file(pubKey)
|
|
ctx.use_privatekey_file(privKey)
|
|
|
|
self.bsocket = socket.socket(self.address_family, self.socket_type)
|
|
self.socket = SSL.Connection(ctx, self.bsocket)
|
|
|
|
if bind_and_activate:
|
|
self.server_bind()
|
|
self.server_activate()
|
|
|
|
def shutdown_request(self, request):
|
|
try:
|
|
request.shutdown()
|
|
except SSL.Error:
|
|
# ignore SSL errors on connection shutdown
|
|
pass
|
|
|
|
|
|
class SecureHandler():
|
|
def setup(self):
|
|
self.connection = self.request
|
|
self.rfile = socket._fileobject(self.request, "rb", self.rbufsize)
|
|
self.wfile = socket._fileobject(self.request, "wb", self.wbufsize)
|
|
|
|
class ServeFileException(Exception):
|
|
pass
|
|
|
|
|
|
class ServeFile():
|
|
""" Main class to manage everything. """
|
|
|
|
_NUM_MODES = 4
|
|
(MODE_SINGLE, MODE_SINGLETAR, MODE_UPLOAD, MODE_LISTDIR) = range(_NUM_MODES)
|
|
|
|
def __init__(self, target, port=8080, serveMode=0, useSSL=False):
|
|
self.target = target
|
|
self.port = port
|
|
self.serveMode = serveMode
|
|
self.dirCreated = False
|
|
self.useSSL = useSSL
|
|
self.cert = self.key = None
|
|
self.auth = None
|
|
self.maxUploadSize = 0
|
|
self.listenIPv4 = True
|
|
self.listenIPv6 = True
|
|
|
|
if self.serveMode not in range(self._NUM_MODES):
|
|
self.serveMode = None
|
|
raise ValueError("Unknown serve mode, needs to be MODE_SINGLE, MODE_SINGLETAR, MODE_UPLOAD or MODE_DIRLIST.")
|
|
|
|
def setIPv4(self, ipv4):
|
|
""" En- or disable ipv4 """
|
|
self.listenIPv4 = ipv4
|
|
|
|
def setIPv6(self, ipv6):
|
|
""" En- or disable ipv6 """
|
|
self.listenIPv6 = ipv6
|
|
|
|
def getIPs(self):
|
|
""" Get IPs from all interfaces via ip or ifconfig. """
|
|
# ip and ifconfig sometimes are located in /sbin/
|
|
os.environ['PATH'] += ':/sbin:/usr/sbin'
|
|
proc = Popen(r"ip addr|" + \
|
|
"sed -n -e 's/.*inet6\{0,1\} \([0-9.a-fA-F:]\+\).*/\\1/ p'|" + \
|
|
"grep -v '^fe80\|^127.0.0.1\|^::1'", \
|
|
shell=True, stdout=PIPE, stderr=PIPE)
|
|
if proc.wait() != 0:
|
|
# ip failed somehow, falling back to ifconfig
|
|
oldLang = os.environ.get("LC_ALL", None)
|
|
os.environ['LC_ALL'] = "C"
|
|
proc = Popen(r"ifconfig|" + \
|
|
"sed -n 's/.*inet6\{0,1\}\( addr:\)\{0,1\} \{0,1\}\([0-9a-fA-F.:]*\).*/" + \
|
|
"\\2/p'|" + \
|
|
"grep -v '^fe80\|^127.0.0.1\|^::1'", \
|
|
shell=True, stdout=PIPE, stderr=PIPE)
|
|
if oldLang:
|
|
os.environ['LC_ALL'] = oldLang
|
|
else:
|
|
del(os.environ['LC_ALL'])
|
|
if proc.wait() != 0:
|
|
# we couldn't find any ip address
|
|
proc = None
|
|
if proc:
|
|
ips = proc.stdout.read().strip().split("\n")
|
|
|
|
# filter out ips we are not listening on
|
|
if not self.listenIPv6:
|
|
ips = filter(lambda ip: ":" not in ip, ips)
|
|
if not self.listenIPv4:
|
|
ips = filter(lambda ip: "." not in ip, ips)
|
|
|
|
return ips
|
|
return None
|
|
|
|
def setSSLKeys(self, cert, key):
|
|
""" Set SSL cert/key. Can be either path to file or pyssl X509/PKey object. """
|
|
self.cert = cert
|
|
self.key = key
|
|
|
|
def setMaxUploadSize(self, limit):
|
|
""" Set the maximum upload size in byte """
|
|
self.maxUploadSize = limit
|
|
|
|
def setCompression(self, compression):
|
|
""" Set the compression of TarFileHandler """
|
|
if self.serveMode != self.MODE_SINGLETAR:
|
|
raise ServeFileException("Compression mode can only be set in tar-mode.")
|
|
if compression not in TarFileHandler.compressionMethods:
|
|
raise ServeFileException("Compression mode not available.")
|
|
TarFileHandler.compression = compression
|
|
|
|
def genKeyPair(self):
|
|
print("Generating SSL certificate...", end="")
|
|
sys.stdout.flush()
|
|
|
|
pkey = crypto.PKey()
|
|
pkey.generate_key(crypto.TYPE_RSA, 2048)
|
|
|
|
req = crypto.X509Req()
|
|
subj = req.get_subject()
|
|
subj.CN = "127.0.0.1"
|
|
subj.O = "servefile laboratories"
|
|
subj.OU = "servefile"
|
|
|
|
# generate altnames
|
|
altNames = []
|
|
for ip in self.getIPs() + ["127.0.0.1", "::1"]:
|
|
altNames.append("IP:%s" % ip)
|
|
altNames.append("DNS:localhost")
|
|
ext = crypto.X509Extension("subjectAltName", False, ",".join(altNames))
|
|
req.add_extensions([ext])
|
|
|
|
req.set_pubkey(pkey)
|
|
req.sign(pkey, "sha1")
|
|
|
|
cert = crypto.X509()
|
|
# Mozilla only accepts v3 certificates with v3 extensions, not v1
|
|
cert.set_version(0x2)
|
|
# some browsers complain if they see a cert from the same authority
|
|
# with the same serial ==> we just use the seconds as serial.
|
|
cert.set_serial_number(int(time.time()))
|
|
cert.gmtime_adj_notBefore(0)
|
|
cert.gmtime_adj_notAfter(365*24*60*60)
|
|
cert.set_issuer(req.get_subject())
|
|
cert.set_subject(req.get_subject())
|
|
cert.add_extensions([ext])
|
|
cert.set_pubkey(req.get_pubkey())
|
|
cert.sign(pkey, "sha1")
|
|
|
|
self.cert = cert
|
|
self.key = pkey
|
|
|
|
print("done.")
|
|
print("SHA1 fingerprint:", cert.digest("sha1"))
|
|
print("MD5 fingerprint:", cert.digest("md5"))
|
|
|
|
def _getCert(self):
|
|
return self.cert
|
|
|
|
def _getKey(self):
|
|
return self.key
|
|
|
|
def setAuth(self, user, password, realm=None):
|
|
if not user or not password:
|
|
raise ServeFileException("User and password both need to be at least one character.")
|
|
self.auth = base64.b64encode("%s:%s" % (user, password))
|
|
self.authrealm = realm
|
|
|
|
def _createServer(self, handler, withv6=False):
|
|
ThreadedHTTPServer.address_family = socket.AF_INET
|
|
SecureThreadedHTTPServer.address_family = socket.AF_INET
|
|
listenIp = ''
|
|
server = None
|
|
|
|
if withv6:
|
|
listenIp = '::'
|
|
ThreadedHTTPServer.address_family = socket.AF_INET6
|
|
SecureThreadedHTTPServer.address_family = socket.AF_INET6
|
|
|
|
if self.useSSL:
|
|
if not self._getKey():
|
|
self.genKeyPair()
|
|
try:
|
|
server = SecureThreadedHTTPServer(self._getCert(), self._getKey(),
|
|
(listenIp, self.port), handler, bind_and_activate=False)
|
|
except SSL.Error as e:
|
|
raise ServeFileException("SSL error: Could not read SSL public/private key from file(s) (error was: \"%s\")" % (e[0][0][2],))
|
|
else:
|
|
server = ThreadedHTTPServer((listenIp, self.port), handler,
|
|
bind_and_activate=False)
|
|
|
|
if withv6:
|
|
server.socket.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_V6ONLY, 1)
|
|
|
|
server.server_bind()
|
|
server.server_activate()
|
|
|
|
return server
|
|
|
|
def serve(self):
|
|
self.handler = self._confAndFindHandler()
|
|
self.server = []
|
|
|
|
try:
|
|
currsocktype = "IPv4"
|
|
if self.listenIPv4:
|
|
self.server.append(self._createServer(self.handler))
|
|
currsocktype = "IPv6"
|
|
if self.listenIPv6:
|
|
self.server.append(self._createServer(self.handler, withv6=True))
|
|
except socket.error as e:
|
|
raise ServeFileException("Could not open %s socket: %s" % (currsocktype, e))
|
|
|
|
if self.serveMode != self.MODE_UPLOAD:
|
|
print("Serving \"%s\" at port %d." % (self.target, self.port))
|
|
else:
|
|
print("Serving \"%s\" for uploads at port %d." % (self.target, self.port))
|
|
|
|
# print urls with local network adresses
|
|
print("\nSome addresses %s will be available at:" % \
|
|
("this file" if (self.serveMode != self.MODE_UPLOAD) else "the uploadform", ))
|
|
ips = self.getIPs()
|
|
if not ips or len(ips) == 0 or ips[0] == '':
|
|
print("Could not find any addresses.")
|
|
else:
|
|
pwPart = ""
|
|
if self.auth:
|
|
pwPart = base64.b64decode(self.auth) + "@"
|
|
for ip in ips:
|
|
if ":" in ip:
|
|
ip = "[%s]" % ip
|
|
print("\thttp%s://%s%s:%d/" % (self.useSSL and "s" or "", pwPart, ip, self.port))
|
|
print()
|
|
|
|
try:
|
|
while True:
|
|
(servers, _, _) = select.select(self.server, [], [])
|
|
for server in servers:
|
|
server.handle_request()
|
|
except KeyboardInterrupt:
|
|
for server in self.server:
|
|
server.socket.close()
|
|
|
|
# cleanup potential upload directory
|
|
if self.dirCreated and len(os.listdir(self.target)) == 0:
|
|
# created upload dir was not used
|
|
os.rmdir(self.target)
|
|
|
|
def _confAndFindHandler(self):
|
|
handler = None
|
|
if self.serveMode == self.MODE_SINGLE:
|
|
try:
|
|
testit = open(self.target, 'r')
|
|
testit.close()
|
|
except IOError as e:
|
|
raise ServeFileException("Error: Could not open file, %r" % (str(e),))
|
|
FileHandler.filePath = self.target
|
|
FileHandler.fileName = os.path.basename(self.target)
|
|
FileHandler.fileLength = os.stat(self.target).st_size
|
|
handler = FileHandler
|
|
elif self.serveMode == self.MODE_SINGLETAR:
|
|
self.realTarget = os.path.realpath(self.target)
|
|
if not os.path.exists(self.realTarget):
|
|
raise ServeFileException("Error: Could not open file or directory.")
|
|
TarFileHandler.target = self.realTarget
|
|
TarFileHandler.fileName = os.path.basename(self.realTarget.rstrip("/")) + TarFileHandler.getCompressionExt()
|
|
|
|
handler = TarFileHandler
|
|
elif self.serveMode == self.MODE_UPLOAD:
|
|
if os.path.isdir(self.target):
|
|
print("Warning: Uploading to an already existing directory.")
|
|
elif not os.path.exists(self.target):
|
|
self.dirCreated = True
|
|
try:
|
|
os.mkdir(self.target)
|
|
except (IOError, OSError) as e:
|
|
raise ServeFileException("Error: Could not create directory '%s' for uploads, %r" % (self.target, str(e)))
|
|
else:
|
|
raise ServeFileException("Error: Upload directory already exists and is a file.")
|
|
FilePutter.targetDir = self.target
|
|
FilePutter.maxUploadSize = self.maxUploadSize
|
|
handler = FilePutter
|
|
elif self.serveMode == self.MODE_LISTDIR:
|
|
if not os.path.exists(self.target):
|
|
raise ServeFileException("Error: Could not open file or directory.")
|
|
if not os.path.isdir(self.target):
|
|
raise ServeFileException("Error: '%s' is not a directory." % (self.target,))
|
|
handler = DirListingHandler
|
|
handler.targetDir = self.target
|
|
|
|
if self.auth:
|
|
# do authentication
|
|
AuthenticationHandler.authString = self.auth
|
|
if self.authrealm:
|
|
AuthenticationHandler.realm = self.authrealm
|
|
class AuthenticatedHandler(AuthenticationHandler, handler):
|
|
pass
|
|
handler = AuthenticatedHandler
|
|
|
|
if self.useSSL:
|
|
# secure handler
|
|
@catchSSLErrors
|
|
class AlreadySecuredHandler(SecureHandler, handler):
|
|
pass
|
|
handler = AlreadySecuredHandler
|
|
return handler
|
|
|
|
|
|
class AuthenticationHandler():
|
|
# base64 encoded user:password string for authentication
|
|
authString = None
|
|
realm = "Restricted area"
|
|
|
|
def handle_one_request(self):
|
|
""" Overloaded function to handle one request.
|
|
|
|
Before calling the responsible do_METHOD function, check credentials
|
|
"""
|
|
self.raw_requestline = self.rfile.readline()
|
|
if not self.raw_requestline:
|
|
self.close_connection = 1
|
|
return
|
|
if not self.parse_request(): # An error code has been sent, just exit
|
|
return
|
|
|
|
authorized = False
|
|
if "Authorization" in self.headers:
|
|
if self.headers["Authorization"] == ("Basic " + self.authString):
|
|
authorized = True
|
|
if authorized:
|
|
mname = 'do_' + self.command
|
|
if not hasattr(self, mname):
|
|
self.send_error(501, "Unsupported method (%r)" % self.command)
|
|
return
|
|
method = getattr(self, mname)
|
|
method()
|
|
else:
|
|
self.send_response(401)
|
|
self.send_header("WWW-Authenticate", "Basic realm=\"%s\"" % self.realm)
|
|
self.send_header("Connection", "close")
|
|
errorMsg = "<html><head><title>401 - Unauthorized</title></head><body><h1>401 - Unauthorized</h1></body></html>"
|
|
self.send_header("Content-Length", str(len(errorMsg)))
|
|
self.end_headers()
|
|
self.wfile.write(errorMsg)
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def main():
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parser = argparse.ArgumentParser(description='Serve a single file via HTTP.')
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parser.add_argument('--version', action='version', version='%(prog)s ' + __version__)
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parser.add_argument('target', metavar='file/directory', type=str)
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parser.add_argument('-p', '--port', type=int, default=8080, \
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help='Port to listen on')
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parser.add_argument('-u', '--upload', action="store_true", default=False, \
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help="Enable uploads to a given directory")
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parser.add_argument('-s', '--max-upload-size', type=str, \
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help="Limit upload size in kB. Size modifiers are allowed, e.g. 2G, 12MB, 1B")
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parser.add_argument('-l', '--list-dir', action="store_true", default=False, \
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help="Show directory indexes and allow access to all subdirectories")
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parser.add_argument('--ssl', action="store_true", default=False, \
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help="Enable SSL. If no key/cert is specified one will be generated")
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parser.add_argument('--key', type=str, \
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help="Keyfile to use for SSL. If no cert is given with --cert the keyfile will also be searched for a cert")
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parser.add_argument('--cert', type=str, \
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help="Certfile to use for SSL")
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parser.add_argument('-a', '--auth', type=str, metavar='user:password', \
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help="Set user and password for HTTP basic authentication")
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parser.add_argument('--realm', type=str, default=None,\
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help="Set a realm for HTTP basic authentication")
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|
parser.add_argument('-t', '--tar', action="store_true", default=False, \
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help="Enable on the fly tar creation for given file or directory. Note: Download continuation will not be available")
|
|
parser.add_argument('-c', '--compression', type=str, metavar='method', \
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|
default="none", \
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|
help="Set compression method, only in combination with --tar. Can be one of %s" % ", ".join(TarFileHandler.compressionMethods))
|
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parser.add_argument('-4', '--ipv4-only', action="store_true", default=False, \
|
|
help="Listen on IPv4 only")
|
|
parser.add_argument('-6', '--ipv6-only', action="store_true", default=False, \
|
|
help="Listen on IPv6 only")
|
|
|
|
args = parser.parse_args()
|
|
maxUploadSize = 0
|
|
|
|
# check for invalid option combinations/preparse stuff
|
|
if args.max_upload_size and not args.upload:
|
|
print("Error: Maximum upload size can only be specified when in upload mode.")
|
|
sys.exit(1)
|
|
|
|
if args.upload and args.list_dir:
|
|
print("Error: Upload and dirlisting can't be enabled together.")
|
|
sys.exit(1)
|
|
|
|
if args.max_upload_size:
|
|
sizeRe = re.match("^(\d+(?:[,.]\d+)?)(?:([bkmgtpe])(?:(?<!b)b?)?)?$", args.max_upload_size.lower())
|
|
if not sizeRe:
|
|
print("Error: Your max upload size param is broken. Try something like 3M or 2.5Gb.")
|
|
sys.exit(1)
|
|
uploadSize, modifier = sizeRe.groups()
|
|
uploadSize = float(uploadSize.replace(",", "."))
|
|
sizes = ["b", "k", "m", "g", "t", "p", "e"]
|
|
maxUploadSize = int(uploadSize * pow(1024, sizes.index(modifier or "k")))
|
|
if maxUploadSize < 0:
|
|
print("Error: Your max upload size can't be negative")
|
|
sys.exit(1)
|
|
|
|
if args.ssl and not HAVE_SSL:
|
|
print("Error: SSL is not available, please install pyssl (python-openssl).")
|
|
sys.exit(1)
|
|
|
|
if args.cert and not args.key:
|
|
print("Error: Please specify a key along with your cert.")
|
|
sys.exit(1)
|
|
|
|
if not args.ssl and (args.cert or args.key):
|
|
print("Error: You need to enable ssl with --ssl when specifying certs/keys.")
|
|
sys.exit(1)
|
|
|
|
if args.auth:
|
|
dpos = args.auth.find(":")
|
|
if dpos <= 0 or dpos == (len(args.auth)-1):
|
|
print("Error: User and password for HTTP basic authentication need to be both at least one character and have to be separated by a \":\".")
|
|
sys.exit(1)
|
|
|
|
if args.realm and not args.auth:
|
|
print("You can only specify a realm when HTTP basic authentication is enabled.")
|
|
sys.exit(1)
|
|
|
|
if args.compression != "none" and not args.tar:
|
|
print("Error: Please use --tar if you want to tar everything.")
|
|
sys.exit(1)
|
|
|
|
if args.tar and args.upload:
|
|
print("Error: --tar mode will not work with uploads.")
|
|
sys.exit(1)
|
|
|
|
if args.tar and args.list_dir:
|
|
print("Error: --tar mode will not work with directory listings.")
|
|
sys.exit(1)
|
|
|
|
compression = None
|
|
if args.compression:
|
|
if args.compression in TarFileHandler.compressionMethods:
|
|
compression = args.compression
|
|
else:
|
|
print("Error: Compression mode '%s' is unknown." % args.compression)
|
|
sys.exit(1)
|
|
|
|
if args.ipv4_only and args.ipv6_only:
|
|
print("You can't listen both on IPv4 and IPv6 \"only\".")
|
|
sys.exit(1)
|
|
|
|
if args.ipv6_only and not socket.has_ipv6:
|
|
print("Your system does not support IPv6.")
|
|
sys.exit(1)
|
|
|
|
mode = None
|
|
if args.upload:
|
|
mode = ServeFile.MODE_UPLOAD
|
|
elif args.list_dir:
|
|
mode = ServeFile.MODE_LISTDIR
|
|
elif args.tar:
|
|
mode = ServeFile.MODE_SINGLETAR
|
|
else:
|
|
mode = ServeFile.MODE_SINGLE
|
|
|
|
server = None
|
|
try:
|
|
server = ServeFile(args.target, args.port, mode, args.ssl)
|
|
if maxUploadSize > 0:
|
|
server.setMaxUploadSize(maxUploadSize)
|
|
if args.ssl and args.key:
|
|
cert = args.cert or args.key
|
|
server.setSSLKeys(cert, args.key)
|
|
if args.auth:
|
|
user, password = args.auth.split(":", 1)
|
|
server.setAuth(user, password, args.realm)
|
|
if compression and compression != "none":
|
|
server.setCompression(compression)
|
|
if args.ipv4_only or not socket.has_ipv6:
|
|
server.setIPv6(False)
|
|
if args.ipv6_only:
|
|
server.setIPv4(False)
|
|
server.serve()
|
|
except ServeFileException as e:
|
|
print(e)
|
|
sys.exit(1)
|
|
print("Good bye.")
|
|
|
|
|
|
if __name__ == '__main__':
|
|
main()
|
|
|