#!/usr/bin/python # -*- coding: utf-8 -*- # Licensed under GNU General Public License v3 or later # Written by Sebastian Lohff (seba@seba-geek.de) # http://seba-geek.de/stuff/servefile/ from __future__ import print_function __version__ = '0.4.3' import argparse import base64 import cgi import datetime import mimetypes import urllib import os import posixpath import re import select import socket from subprocess import Popen, PIPE import sys import time # fix imports for python2/python3 try: import BaseHTTPServer import SocketServer except ImportError: # both have different names in python3 import http.server as BaseHTTPServer import socketserver as SocketServer # only activate SSL if available HAVE_SSL = False try: from OpenSSL import SSL, crypto HAVE_SSL = True except ImportError: pass def getDateStrNow(): """ Get the current time formatted for HTTP header """ now = datetime.datetime.fromtimestamp(time.mktime(time.gmtime())) return now.strftime("%a, %d %b %Y %H:%M:%S GMT") class FileBaseHandler(BaseHTTPServer.BaseHTTPRequestHandler): fileName = None blockSize = 1024 * 1024 server_version = "servefile/" + __version__ def checkAndDoRedirect(self, fileName=None): """ If request didn't request self.fileName redirect to self.fileName. Returns True if a redirect was issued. """ if not fileName: fileName = self.fileName if urllib.unquote(self.path) != "/" + fileName: self.send_response(302) self.send_header('Location', '/' + fileName) self.end_headers() return True return False def sendContentHeaders(self, fileName, fileLength, lastModified=None): """ Send default Content headers for given fileName and fileLength. If no lastModified is given the current date is taken. If fileLength is lesser than 0 no Content-Length will be sent.""" if not lastModified: lastModified = getDateStrNow() if fileLength >= 0: self.send_header('Content-Length', str(fileLength)) self.send_header('Connection', 'close') self.send_header('Last-Modified', lastModified) self.send_header('Content-Type', 'application/octet-stream') self.send_header('Content-Disposition', 'attachment; filename="%s"' % fileName) self.send_header('Content-Transfer-Encoding', 'binary') def isRangeRequest(self): """ Return True if partial content is requestet """ return "Range" in self.headers def handleRangeRequest(self, fileLength): """ Find out and handle continuing downloads. Returns a tuple of a boolean, if this is a valid range request, and a range. When the requested range is out of range, range is set to None. """ fromto = None if self.isRangeRequest(): cont = self.headers.get("Range").split("=") if len(cont) > 1 and cont[0] == 'bytes': fromto = cont[1].split('-') if len(fromto) > 1: if fromto[1] == '': fromto[1] = fileLength - 1 try: fromto[0] = int(fromto[0]) fromto[1] = int(fromto[1]) except ValueError: return (False, None) if fromto[0] >= fileLength or fromto[0] < 0 or fromto[1] >= fileLength or fromto[1]-fromto[0] < 0: # oops, already done! (requested range out of range) self.send_response(416) self.send_header('Content-Range', 'bytes */%d' % fileLength) self.end_headers() return (True, None) return (True, fromto) # broken request or no range header return (False, None) def sendFile(self, filePath, fileLength=None, lastModified=None): """ Send file with continuation support. filePath: path to file to be sent fileLength: length of file (if None is given this will be found out) lastModified: time the file was last modified, None for "now" """ if not fileLength: fileLength = os.stat(filePath).st_size (responseCode, myfile) = self.getFileHandle(filePath) if not myfile: self.send_response(responseCode) self.end_headers() return (continueDownload, fromto) = self.handleRangeRequest(fileLength) if continueDownload: if not fromto: # we are done return True # now we can wind the file *brrrrrr* myfile.seek(fromto[0]) if fromto != None: self.send_response(216) self.send_header('Content-Range', 'bytes %d-%d/%d' % (fromto[0], fromto[1], fileLength)) fileLength = fromto[1] - fromto[0] + 1 else: self.send_response(200) fileName = self.fileName if not fileName: fileName = os.path.basename(filePath) self.sendContentHeaders(fileName, fileLength, lastModified) self.end_headers() block = self.getChunk(myfile, fromto) while block: self.wfile.write(block) block = self.getChunk(myfile, fromto) myfile.close() print("%s finished downloading %s" % (self.client_address[0], filePath)) return True def getChunk(self, myfile, fromto): if fromto and myfile.tell()+self.blockSize >= fromto[1]: readsize = fromto[1]-myfile.tell()+1 else: readsize = self.blockSize return myfile.read(readsize) def getFileHandle(self, path): """ Get handle to a file. Return a tuple of HTTP response code and file handle. If the handle couldn't be acquired it is set to None and an appropriate HTTP error code is returned. """ myfile = None responseCode = 200 try: myfile = open(path, 'rb') except IOError as e: responseCode = self.getResponseForErrno(e.errno) return (responseCode, myfile) def getFileLength(self, path): """ Get length of a file. Return a tuple of HTTP response code and file length. If filelength couldn't be determined, it is set to -1 and an appropriate HTTP error code is returned. """ fileSize = -1 responseCode = 200 try: fileSize = os.stat(path).st_size except IOError as e: responseCode = self.getResponseForErrno(e.errno) return (responseCode, fileSize) def getResponseForErrno(self, errno): """ Return HTTP response code for an IOError errno """ if errno == errno.ENOENT: return 404 elif errno == errno.EACCESS: return 403 else: return 500 class FileHandler(FileBaseHandler): filePath = "/dev/null" fileLength = 0 startTime = getDateStrNow() def do_HEAD(self): if self.checkAndDoRedirect(): return self.send_response(200) self.sendContentHeaders(self.fileName, self.fileLength, self.startTime) self.end_headers() def do_GET(self): if self.checkAndDoRedirect(): return self.sendFile(self.filePath, self.fileLength, self.startTime) class TarFileHandler(FileBaseHandler): target = None compression = "none" compressionMethods = ("none", "gzip", "bzip2") def do_HEAD(self): if self.checkAndDoRedirect(): return self.send_response(200) self.sendContentHeaders(self.fileName, -1) self.end_headers() def do_GET(self): if self.checkAndDoRedirect(): return tarCmd = Popen(self.getCompressionCmd(), stdout=PIPE) # give the process a short time to find out if it can # pack/compress the file time.sleep(0.05) if tarCmd.poll() != None and tarCmd.poll() != 0: # something went wrong print("Error while compressing '%s'. Aborting request." % self.target) self.send_response(500) self.end_headers() return self.send_response(200) self.sendContentHeaders(self.fileName, -1) self.end_headers() block = True while block and block != '': block = tarCmd.stdout.read(self.blockSize) if block and block != '': self.wfile.write(block) print("%s finished downloading" % (self.client_address[0])) def getCompressionCmd(self): if self.compression == "none": cmd = ["tar", "-c"] elif self.compression == "gzip": cmd = ["tar", "-cz"] elif self.compression == "bzip2": cmd = ["tar", "-cj"] else: raise ValueError("Unknown compression mode '%s'." % self.compression) dirname = os.path.basename(self.target.rstrip("/")) chdirTo = os.path.dirname(self.target.rstrip("/")) if chdirTo != '': cmd.extend(["-C", chdirTo]) cmd.append(dirname) return cmd @staticmethod def getCompressionExt(): if TarFileHandler.compression == "none": return ".tar" elif TarFileHandler.compression == "gzip": return ".tar.gz" elif TarFileHandler.compression == "bzip2": return ".tar.bz2" raise ValueError("Unknown compression mode '%s'." % TarFileHandler.compression) class DirListingHandler(FileBaseHandler): """ DOCUMENTATION MISSING """ targetDir = None def do_HEAD(self): self.getFileOrDirectory(head=True) def do_GET(self): self.getFileOrDirectory(head=False) def getFileOrDirectory(self, head=False): """ Send file or directory index, depending on requested path """ path = self.getCleanPath() if os.path.isdir(path): if not self.path.endswith('/'): self.send_response(301) self.send_header("Location", self.path + '/') self.end_headers() else: self.sendDirectoryListing(path, head) elif os.path.isfile(path): if head: (response, length) = self.getFileLength(path) if length < 0: self.send_response(response) self.end_headers() else: self.send_response(200) self.sendContentHeaders(self, path, length) self.end_headers() else: self.sendFile(path, head) else: self.send_response(404) errorMsg = """ 404 Not Found

Not Found

The requestet URL %s was not found on this server

Back to / """ % self.escapeHTML(urllib.unquote(self.path)) self.send_header("Content-Length", str(len(errorMsg))) self.send_header('Connection', 'close') self.end_headers() if not head: self.wfile.write(errorMsg) def escapeHTML(self, htmlstr): entities = [("<", "<"), (">", ">")] for src, dst in entities: htmlstr = htmlstr.replace(src, dst) return htmlstr def _appendToListing(self, content, item, itemPath, stat, is_dir): # Strings to display on directory listing lastModifiedDate = datetime.datetime.fromtimestamp(stat.st_mtime) lastModified = lastModifiedDate.strftime("%Y-%m-%d %H:%M") fileSize = "%.1f%s" % self.convertSize(stat.st_size) (fileType, _) = mimetypes.guess_type(itemPath) if not fileType: fileType = "-" if is_dir: item += "/" fileType = "Directory" content.append(""" %s %s %s %s """ % (urllib.quote(item), item, lastModified, fileSize, fileType)) def sendDirectoryListing(self, path, head): """ Generate a directorylisting for path and send it """ header = """ Index of %(path)s

Index of %(path)s

""" % {'path': posixpath.normpath(urllib.unquote(self.path))} footer = """
Name Last Modified Size Type
servefile %(version)s
""" % {'version': __version__} content = [] dir_items = list() file_items = list() for item in [".."] + sorted(os.listdir(path), key=lambda x:x.lower()): # create path to item itemPath = os.path.join(path, item) # Hide "../" in listing of the (virtual) root directory if item == '..' and path == DirListingHandler.targetDir.rstrip('/') + '/': continue # try to stat file for size, last modified... continue on error stat = None try: stat = os.stat(itemPath) except IOError: continue if os.path.isdir(itemPath): target_items = dir_items else: target_items = file_items target_items.append((item, itemPath, stat)) # Directories first, then files for (tuple_list, is_dir) in ( (dir_items, True), (file_items, False), ): for (item, itemPath, stat) in tuple_list: self._appendToListing(content, item, itemPath, stat, is_dir=is_dir) listing = header + "\n".join(content) + footer # write listing self.send_response(200) self.send_header("Content-Type", "text/html") if head: self.end_headers() return self.send_header("Content-Length", str(len(listing))) self.send_header('Connection', 'close') self.end_headers() self.wfile.write(listing) def convertSize(self, size): for ext in "KMGT": size /= 1024.0 if size < 1024.0: break if ext == "K" and size < 0.1: size = 0.1 return (size, ext.strip()) def getCleanPath(self): urlPath = posixpath.normpath(urllib.unquote(self.path)).strip("/") path = os.path.join(self.targetDir, urlPath) return path class FilePutter(BaseHTTPServer.BaseHTTPRequestHandler): """ Simple HTTP Server which allows uploading to a specified directory either via multipart/form-data or POST/PUT requests containing the file. """ targetDir = None maxUploadSize = 0 blockSize = 1024 * 1024 uploadPage = """

""" def do_GET(self): """ Answer every GET request with the upload form """ self.sendResponse(200, self.uploadPage) def do_POST(self): """ Upload a file via POST If the content-type is multipart/form-data it checks for the file field and saves the data to disk. For other content-types it just calls do_PUT and is handled as such except for the http response code. Files can be uploaded with wget --post-file=path/to/file or curl -X POST -d @file . """ length = self.getContentLength() if length < 0: return ctype = self.headers.getheader('Content-Type') # check for multipart/form-data. if not (ctype and ctype.lower().startswith("multipart/form-data")): # not a normal multipart request ==> handle as PUT request return self.do_PUT(fromPost=True) # 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 . """ 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. back" % 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 = "401 - Unauthorized

401 - Unauthorized

" self.send_header("Content-Length", str(len(errorMsg))) self.end_headers() self.wfile.write(errorMsg) def main(): parser = argparse.ArgumentParser(description='Serve a single file via HTTP.') parser.add_argument('--version', action='version', version='%(prog)s ' + __version__) parser.add_argument('target', metavar='file/directory', type=str) parser.add_argument('-p', '--port', type=int, default=8080, \ help='Port to listen on') parser.add_argument('-u', '--upload', action="store_true", default=False, \ help="Enable uploads to a given directory") parser.add_argument('-s', '--max-upload-size', type=str, \ help="Limit upload size in kB. Size modifiers are allowed, e.g. 2G, 12MB, 1B") parser.add_argument('-l', '--list-dir', action="store_true", default=False, \ help="Show directory indexes and allow access to all subdirectories") parser.add_argument('--ssl', action="store_true", default=False, \ help="Enable SSL. If no key/cert is specified one will be generated") parser.add_argument('--key', type=str, \ help="Keyfile to use for SSL. If no cert is given with --cert the keyfile will also be searched for a cert") parser.add_argument('--cert', type=str, \ help="Certfile to use for SSL") parser.add_argument('-a', '--auth', type=str, metavar='user:password', \ help="Set user and password for HTTP basic authentication") parser.add_argument('--realm', type=str, default=None,\ help="Set a realm for HTTP basic authentication") parser.add_argument('-t', '--tar', action="store_true", default=False, \ 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', \ default="none", \ help="Set compression method, only in combination with --tar. Can be one of %s" % ", ".join(TarFileHandler.compressionMethods)) 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])(?:(? 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()