bharadwaj-raju/README.md

## README.md

      
    Raw
  

              README.md
            
          
    fileserver.py

Credit to bones7456.
Instructions

Change values in settings.py, place it in the same directory as fileserver.py then run python2 fileserver.py

  
## fileserver.py
#!/usr/bin/env python2

"""Simple HTTP Server With Upload and Authentication.

This module builds on BaseHTTPServer by implementing the standard GET
and HEAD requests in a fairly straightforward manner.

"""

__author__ = "bones7456"
__contributor__ = "wonjohnchoi"

import os
import posixpath
import BaseHTTPServer
import urllib
import cgi
import shutil
import mimetypes
import re
try:
    from cStringIO import StringIO
except ImportError:
    from StringIO import StringIO
import sys
import base64
import settings

def key():
    return base64.b64encode('%s:%s' % (settings.username, settings.password))

class Counter:
    ''' instantiate only once '''
    def __init__(self):
        import sqlite3
        print 'making sqlite3 database'
        self.conn = sqlite3.connect(os.path.expanduser('~/.config/simple-file-server.db'))
        self.cursor = self.conn.cursor()
        self.cursor.execute('''CREATE TABLE IF NOT EXISTS counter
                  (fullpath text primary key, count integer)''')

    def incr_counter(self, path):
        """ Increase the counter that counts how many times a path is visited """
        res = self.read_counter(path)
        # print 'incr_counter:', path, res, '->', res + 1
        res += 1
        self.cursor.execute('REPLACE INTO counter(fullpath, count) VALUES(?, ?)', (path, res))
        self.conn.commit()
        pass

    def read_counter(self, path):
        """ Read the counter that counts how many times a path is visited """
        self.cursor.execute('SELECT * FROM "counter" WHERE "fullpath"=?', (path,))
        row = self.cursor.fetchone()
        count = 0
        if row != None : count = row[1]
        # print 'read_counter:', path, count
        return count


class SimpleHTTPRequestHandler(BaseHTTPServer.BaseHTTPRequestHandler):

    """Simple HTTP request handler with GET/HEAD/POST commands.

    This serves files from the current directory and any of its
    subdirectories.  The MIME type for files is determined by
    calling the .guess_type() method. And can reveive file uploaded
    by client.

    The GET/HEAD/POST requests are identical except that the HEAD
    request omits the actual contents of the file.

    """
    counter = Counter()

    def do_HEAD(self):
        """Serve a HEAD request."""
        f = self.send_head()
        if f:
            f.close()

    def is_authenticated(self):
        auth_header = self.headers.getheader('Authorization')
        return auth_header and auth_header == 'Basic ' + key()

    def do_AUTHHEAD(self):
        self.send_response(401)
        self.send_header('WWW-Authenticate', 'Basic realm=\"Test\"')
        self.send_header('Content-type', 'text/html')
        self.end_headers()

    def try_authenticate(self):
        if not self.is_authenticated():
            self.do_AUTHHEAD()
            print 'not authenticated'
            self.wfile.write('not authenticated')
            return False
        return True

    def do_GET(self):
        if not self.try_authenticate():
            return
        print 'authenticated'

        f = self.send_head()
        if f:
            self.copyfile(f, self.wfile)
            f.close()

    def do_POST(self):
        if not self.try_authenticate():
            return
        print 'authenticated'

        """Serve a POST request."""
        r, info = self.deal_post_data()
        print r, info, "by: ", self.client_address
        f = StringIO()
        f.write('<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">')
        f.write("<html>\n<title>Upload Result Page</title>\n")
        f.write("<body>\n<h2>Upload Result Page</h2>\n")
        f.write("<hr>\n")
        if r:
            f.write("<strong>Success:</strong>")
        else:
            f.write("<strong>Failed:</strong>")
        f.write(info)
        f.write("<br><a href=\"%s\">back</a>" % self.headers['referer'])
        f.write("</body>\n</html>\n")
        length = f.tell()
        f.seek(0)
        self.send_response(200)
        self.send_header("Content-type", "text/html")
        self.send_header("Content-Length", str(length))
        self.end_headers()
        if f:
            self.copyfile(f, self.wfile)
            f.close()

    def deal_post_data(self):
        boundary = self.headers.plisttext.split("=")[1]
        remainbytes = int(self.headers['content-length'])
        line = self.rfile.readline()
        remainbytes -= len(line)
        if not boundary in line:
            return (False, "Content NOT begin with boundary")
        line = self.rfile.readline()
        remainbytes -= len(line)
        fn = re.findall(r'Content-Disposition.*name="file"; filename="(.*)"', line)
        if not fn:
            return (False, "Can't find out file name...")
        path = self.url_path_to_file_path(self.path)
        fn = os.path.join(path, fn[0])
        line = self.rfile.readline()
        remainbytes -= len(line)
        line = self.rfile.readline()
        remainbytes -= len(line)
        try:
            out = open(fn, 'wb')
        except IOError:
            return (False, "Can't create file to write, do you have permission to write?")

        preline = self.rfile.readline()
        remainbytes -= len(preline)
        while remainbytes > 0:
            line = self.rfile.readline()
            remainbytes -= len(line)
            if boundary in line:
                preline = preline[0:-1]
                if preline.endswith('\r'):
                    preline = preline[0:-1]
                out.write(preline)
                out.close()
                return (True, "File '%s' upload success!" % fn)
            else:
                out.write(preline)
                preline = line
        return (False, "Unexpect Ends of data.")

    def send_head(self):
        """Common code for GET and HEAD commands.

        This sends the response code and MIME headers.

        Return value is either a file object (which has to be copied
        to the outputfile by the caller unless the command was HEAD,
        and must be closed by the caller under all circumstances), or
        None, in which case the caller has nothing further to do.

        """
        print 'url_path', self.path
        file_path = self.url_path_to_file_path(self.path)
        print 'file_path', file_path
        f = None
        if os.path.isdir(file_path):
            if not self.path.endswith('/'):
                # redirect browser - doing basically what apache does
                self.send_response(301)
                self.send_header("Location", self.path + "/")
                self.end_headers()
                return None
            for index in "index.html", "index.htm":
                index = os.path.join(file_path, index)
                if os.path.exists(index):
                    file_path = index
                    break

        self.counter.incr_counter(file_path)

        if os.path.isdir(file_path):
            return self.list_directory(file_path)
        ctype = self.guess_type(file_path)

        try:
            # Always read in binary mode. Opening files in text mode may cause
            # newline translations, making the actual size of the content
            # transmitted *less* than the content-length!
            f = open(file_path, 'rb')
        except IOError:
            self.send_error(404, "File not found " + file_path)
            return None
        self.send_response(200)
        self.send_header("Content-type", ctype)
        fs = os.fstat(f.fileno())
        self.send_header("Content-Length", str(fs[6]))
        self.send_header("Last-Modified", self.date_time_string(fs.st_mtime))
        self.end_headers()
        return f

    def list_directory(self, dir_path):
        """Helper to produce a directory listing (absent index.html).

        Return value is either a file object, or None (indicating an
        error).  In either case, the headers are sent, making the
        interface the same as for send_head().

        """
        try:
            list = os.listdir(dir_path)
        except os.error:
            self.send_error(404, "No permission to list directory")
            return None
        list.sort(key=lambda a: a.lower())
        if dir_path != '/':
            list = ['..'] + list
        f = StringIO()
        displaypath = cgi.escape(urllib.unquote(self.path))
        f.write('<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">')
        f.write("<html>\n<title>Directory listing for %s</title>\n" % displaypath)
        f.write("<body>\n<h2>Directory listing for %s </h2>\n" % displaypath)
        f.write("<hr>\n")
        f.write("<form ENCTYPE=\"multipart/form-data\" method=\"post\">")
        f.write("<input name=\"file\" type=\"file\"/>")
        f.write("<input type=\"submit\" value=\"upload\"/></form>\n")
        f.write("<hr>\n<ul>\n")

        tot_counts = 0
        for name in list:
            child_file_path = posixpath.normpath(os.path.join(dir_path, name))
            counts = self.counter.read_counter(child_file_path)
            print child_file_path, counts
            tot_counts += counts

        # avoid divide by zero error
        if tot_counts == 0:
            tot_counts += 1

        for name in list:
            child_file_path = posixpath.normpath(os.path.join(dir_path, name))
            displayname = linkname = name
            # Append / for directories or @ for symbolic links
            if os.path.isdir(child_file_path):
                displayname = name + "/"
                linkname = name + "/"
            if os.path.islink(child_file_path):
                displayname = name + "@"
                # Note: a link to a directory displays with @ and links with /
            counts = self.counter.read_counter(child_file_path)
            # red portion of rgb value. with **0.2, it's overall more reddish
            rgb_r = 255 * (float(counts) / tot_counts) ** 0.2
            f.write('<li><a style="color:rgb(%d,0,0)" href="%s">%s</a>\n'
                    % (rgb_r, urllib.quote(linkname), cgi.escape(displayname)))
        f.write("</ul>\n<hr>\n</body>\n</html>\n")
        length = f.tell()
        f.seek(0)
        self.send_response(200)
        self.send_header("Content-type", "text/html")
        self.send_header("Content-Length", str(length))
        self.end_headers()
        return f

    def url_path_to_file_path(self, url_path):
        # 'base_url/' => '/'
        # 'base_url/home/' => '/home'
        # 'base_url/home/test/' => '/home/test'
        # 'base_url/home/test.zip' => '/home/test.zip'
        # 'base_url/home/%22test%22/' => '/home/"test"'
        url_path = url_path[len(settings.base_url):]
        # abandon query parameters
        url_path = url_path.split('?',1)[0]
        url_path = url_path.split('#',1)[0]
        url_path = posixpath.normpath(urllib.unquote(url_path))
        return url_path

    def copyfile(self, source, outputfile):
        """Copy all data between two file objects.

        The SOURCE argument is a file object open for reading
        (or anything with a read() method) and the DESTINATION
        argument is a file object open for writing (or
        anything with a write() method).

        The only reason for overriding this would be to change
        the block size or perhaps to replace newlines by CRLF
        -- note however that this the default server uses this
        to copy binary data as well.

        """
        shutil.copyfileobj(source, outputfile)

    def guess_type(self, path):
        """Guess the type of a file.

        Argument is a PATH (a filename).

        Return value is a string of the form type/subtype,
        usable for a MIME Content-type header.

        The default implementation looks the file's extension
        up in the table self.extensions_map, using application/octet-stream
        as a default; however it would be permissible (if
        slow) to look inside the data to make a better guess.

        """

        base, ext = posixpath.splitext(path)
        if ext in self.extensions_map:
            return self.extensions_map[ext]
        ext = ext.lower()
        if ext in self.extensions_map:
            return self.extensions_map[ext]
        else:
            return self.extensions_map['']

    if not mimetypes.inited:
        mimetypes.init() # try to read system mime.types
    extensions_map = mimetypes.types_map.copy()
    extensions_map.update({
        '': 'application/octet-stream', # Default
        '.py': 'text/plain',
        '.c': 'text/plain',
        '.h': 'text/plain',
        })

if __name__ == '__main__':
    print 'listening on %s:%d with key %s' % (settings.host, settings.port, key())
    server = BaseHTTPServer.HTTPServer((settings.host, settings.port), SimpleHTTPRequestHandler)
    print 'Starting server, use <Ctrl-C> to stop'
    server.serve_forever()

## settings.py
# change these values as you see fit
host = '0.0.0.0'
port = 8000
base_url = '/'
username = 'USER'
password = 'PASSWORD'
	#!/usr/bin/env python2

	"""Simple HTTP Server With Upload and Authentication.

	This module builds on BaseHTTPServer by implementing the standard GET
	and HEAD requests in a fairly straightforward manner.

	"""

	__author__ = "bones7456"
	__contributor__ = "wonjohnchoi"

	import os
	import posixpath
	import BaseHTTPServer
	import urllib
	import cgi
	import shutil
	import mimetypes
	import re
	try:
	from cStringIO import StringIO
	except ImportError:
	from StringIO import StringIO
	import sys
	import base64
	import settings

	def key():
	return base64.b64encode('%s:%s' % (settings.username, settings.password))

	class Counter:
	''' instantiate only once '''
	def __init__(self):
	import sqlite3
	print 'making sqlite3 database'
	self.conn = sqlite3.connect(os.path.expanduser('~/.config/simple-file-server.db'))
	self.cursor = self.conn.cursor()
	self.cursor.execute('''CREATE TABLE IF NOT EXISTS counter
	(fullpath text primary key, count integer)''')

	def incr_counter(self, path):
	""" Increase the counter that counts how many times a path is visited """
	res = self.read_counter(path)
	# print 'incr_counter:', path, res, '->', res + 1
	res += 1
	self.cursor.execute('REPLACE INTO counter(fullpath, count) VALUES(?, ?)', (path, res))
	self.conn.commit()
	pass

	def read_counter(self, path):
	""" Read the counter that counts how many times a path is visited """
	self.cursor.execute('SELECT * FROM "counter" WHERE "fullpath"=?', (path,))
	row = self.cursor.fetchone()
	count = 0
	if row != None : count = row[1]
	# print 'read_counter:', path, count
	return count


	class SimpleHTTPRequestHandler(BaseHTTPServer.BaseHTTPRequestHandler):

	"""Simple HTTP request handler with GET/HEAD/POST commands.

	This serves files from the current directory and any of its
	subdirectories. The MIME type for files is determined by
	calling the .guess_type() method. And can reveive file uploaded
	by client.

	The GET/HEAD/POST requests are identical except that the HEAD
	request omits the actual contents of the file.

	"""
	counter = Counter()

	def do_HEAD(self):
	"""Serve a HEAD request."""
	f = self.send_head()
	if f:
	f.close()

	def is_authenticated(self):
	auth_header = self.headers.getheader('Authorization')
	return auth_header and auth_header == 'Basic ' + key()

	def do_AUTHHEAD(self):
	self.send_response(401)
	self.send_header('WWW-Authenticate', 'Basic realm=\"Test\"')
	self.send_header('Content-type', 'text/html')
	self.end_headers()

	def try_authenticate(self):
	if not self.is_authenticated():
	self.do_AUTHHEAD()
	print 'not authenticated'
	self.wfile.write('not authenticated')
	return False
	return True

	def do_GET(self):
	if not self.try_authenticate():
	return
	print 'authenticated'

	f = self.send_head()
	if f:
	self.copyfile(f, self.wfile)
	f.close()

	def do_POST(self):
	if not self.try_authenticate():
	return
	print 'authenticated'

	"""Serve a POST request."""
	r, info = self.deal_post_data()
	print r, info, "by: ", self.client_address
	f = StringIO()
	f.write('<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">')
	f.write("<html>\n<title>Upload Result Page</title>\n")
	f.write("<body>\n<h2>Upload Result Page</h2>\n")
	f.write("<hr>\n")
	if r:
	f.write("<strong>Success:</strong>")
	else:
	f.write("<strong>Failed:</strong>")
	f.write(info)
	f.write("<br><a href=\"%s\">back</a>" % self.headers['referer'])
	f.write("</body>\n</html>\n")
	length = f.tell()
	f.seek(0)
	self.send_response(200)
	self.send_header("Content-type", "text/html")
	self.send_header("Content-Length", str(length))
	self.end_headers()
	if f:
	self.copyfile(f, self.wfile)
	f.close()

	def deal_post_data(self):
	boundary = self.headers.plisttext.split("=")[1]
	remainbytes = int(self.headers['content-length'])
	line = self.rfile.readline()
	remainbytes -= len(line)
	if not boundary in line:
	return (False, "Content NOT begin with boundary")
	line = self.rfile.readline()
	remainbytes -= len(line)
	fn = re.findall(r'Content-Disposition.name="file"; filename="(.)"', line)
	if not fn:
	return (False, "Can't find out file name...")
	path = self.url_path_to_file_path(self.path)
	fn = os.path.join(path, fn[0])
	line = self.rfile.readline()
	remainbytes -= len(line)
	line = self.rfile.readline()
	remainbytes -= len(line)
	try:
	out = open(fn, 'wb')
	except IOError:
	return (False, "Can't create file to write, do you have permission to write?")

	preline = self.rfile.readline()
	remainbytes -= len(preline)
	while remainbytes > 0:
	line = self.rfile.readline()
	remainbytes -= len(line)
	if boundary in line:
	preline = preline[0:-1]
	if preline.endswith('\r'):
	preline = preline[0:-1]
	out.write(preline)
	out.close()
	return (True, "File '%s' upload success!" % fn)
	else:
	out.write(preline)
	preline = line
	return (False, "Unexpect Ends of data.")

	def send_head(self):
	"""Common code for GET and HEAD commands.

	This sends the response code and MIME headers.

	Return value is either a file object (which has to be copied
	to the outputfile by the caller unless the command was HEAD,
	and must be closed by the caller under all circumstances), or
	None, in which case the caller has nothing further to do.

	"""
	print 'url_path', self.path
	file_path = self.url_path_to_file_path(self.path)
	print 'file_path', file_path
	f = None
	if os.path.isdir(file_path):
	if not self.path.endswith('/'):
	# redirect browser - doing basically what apache does
	self.send_response(301)
	self.send_header("Location", self.path + "/")
	self.end_headers()
	return None
	for index in "index.html", "index.htm":
	index = os.path.join(file_path, index)
	if os.path.exists(index):
	file_path = index
	break

	self.counter.incr_counter(file_path)

	if os.path.isdir(file_path):
	return self.list_directory(file_path)
	ctype = self.guess_type(file_path)

	try:
	# Always read in binary mode. Opening files in text mode may cause
	# newline translations, making the actual size of the content
	# transmitted less than the content-length!
	f = open(file_path, 'rb')
	except IOError:
	self.send_error(404, "File not found " + file_path)
	return None
	self.send_response(200)
	self.send_header("Content-type", ctype)
	fs = os.fstat(f.fileno())
	self.send_header("Content-Length", str(fs[6]))
	self.send_header("Last-Modified", self.date_time_string(fs.st_mtime))
	self.end_headers()
	return f

	def list_directory(self, dir_path):
	"""Helper to produce a directory listing (absent index.html).

	Return value is either a file object, or None (indicating an
	error). In either case, the headers are sent, making the
	interface the same as for send_head().

	"""
	try:
	list = os.listdir(dir_path)
	except os.error:
	self.send_error(404, "No permission to list directory")
	return None
	list.sort(key=lambda a: a.lower())
	if dir_path != '/':
	list = ['..'] + list
	f = StringIO()
	displaypath = cgi.escape(urllib.unquote(self.path))
	f.write('<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">')
	f.write("<html>\n<title>Directory listing for %s</title>\n" % displaypath)
	f.write("<body>\n<h2>Directory listing for %s </h2>\n" % displaypath)
	f.write("<hr>\n")
	f.write("<form ENCTYPE=\"multipart/form-data\" method=\"post\">")
	f.write("<input name=\"file\" type=\"file\"/>")
	f.write("<input type=\"submit\" value=\"upload\"/></form>\n")
	f.write("<hr>\n<ul>\n")

	tot_counts = 0
	for name in list:
	child_file_path = posixpath.normpath(os.path.join(dir_path, name))
	counts = self.counter.read_counter(child_file_path)
	print child_file_path, counts
	tot_counts += counts

	# avoid divide by zero error
	if tot_counts == 0:
	tot_counts += 1

	for name in list:
	child_file_path = posixpath.normpath(os.path.join(dir_path, name))
	displayname = linkname = name
	# Append / for directories or @ for symbolic links
	if os.path.isdir(child_file_path):
	displayname = name + "/"
	linkname = name + "/"
	if os.path.islink(child_file_path):
	displayname = name + "@"
	# Note: a link to a directory displays with @ and links with /
	counts = self.counter.read_counter(child_file_path)
	# red portion of rgb value. with **0.2, it's overall more reddish
	rgb_r = 255 * (float(counts) / tot_counts) ** 0.2
	f.write('<li><a style="color:rgb(%d,0,0)" href="%s">%s</a>\n'
	% (rgb_r, urllib.quote(linkname), cgi.escape(displayname)))
	f.write("</ul>\n<hr>\n</body>\n</html>\n")
	length = f.tell()
	f.seek(0)
	self.send_response(200)
	self.send_header("Content-type", "text/html")
	self.send_header("Content-Length", str(length))
	self.end_headers()
	return f

	def url_path_to_file_path(self, url_path):
	# 'base_url/' => '/'
	# 'base_url/home/' => '/home'
	# 'base_url/home/test/' => '/home/test'
	# 'base_url/home/test.zip' => '/home/test.zip'
	# 'base_url/home/%22test%22/' => '/home/"test"'
	url_path = url_path[len(settings.base_url):]
	# abandon query parameters
	url_path = url_path.split('?',1)[0]
	url_path = url_path.split('#',1)[0]
	url_path = posixpath.normpath(urllib.unquote(url_path))
	return url_path

	def copyfile(self, source, outputfile):
	"""Copy all data between two file objects.

	The SOURCE argument is a file object open for reading
	(or anything with a read() method) and the DESTINATION
	argument is a file object open for writing (or
	anything with a write() method).

	The only reason for overriding this would be to change
	the block size or perhaps to replace newlines by CRLF
	-- note however that this the default server uses this
	to copy binary data as well.

	"""
	shutil.copyfileobj(source, outputfile)

	def guess_type(self, path):
	"""Guess the type of a file.

	Argument is a PATH (a filename).

	Return value is a string of the form type/subtype,
	usable for a MIME Content-type header.

	The default implementation looks the file's extension
	up in the table self.extensions_map, using application/octet-stream
	as a default; however it would be permissible (if
	slow) to look inside the data to make a better guess.

	"""

	base, ext = posixpath.splitext(path)
	if ext in self.extensions_map:
	return self.extensions_map[ext]
	ext = ext.lower()
	if ext in self.extensions_map:
	return self.extensions_map[ext]
	else:
	return self.extensions_map['']

	if not mimetypes.inited:
	mimetypes.init() # try to read system mime.types
	extensions_map = mimetypes.types_map.copy()
	extensions_map.update({
	'': 'application/octet-stream', # Default
	'.py': 'text/plain',
	'.c': 'text/plain',
	'.h': 'text/plain',
	})

	if __name__ == '__main__':
	print 'listening on %s:%d with key %s' % (settings.host, settings.port, key())
	server = BaseHTTPServer.HTTPServer((settings.host, settings.port), SimpleHTTPRequestHandler)
	print 'Starting server, use <Ctrl-C> to stop'
	server.serve_forever()
	# change these values as you see fit
	host = '0.0.0.0'
	port = 8000
	base_url = '/'
	username = 'USER'
	password = 'PASSWORD'