GNU GENERAL PUBLIC LICENSE

		       Version 2, June 1991

 Copyright (C) 1989, 1991 Free Software Foundation, Inc.

                       59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

 Everyone is permitted to copy and distribute verbatim copies

 of this license document, but changing it is not allowed.

			    Preamble

  The licenses for most software are designed to take away your

freedom to share and change it.  By contrast, the GNU General Public

License is intended to guarantee your freedom to share and change free

software--to make sure the software is free for all its users.  This

General Public License applies to most of the Free Software

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  When we speak of free software, we are referring to freedom, not

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		    GNU GENERAL PUBLIC LICENSE

   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION

  0. This License applies to any program or other work which contains

a notice placed by the copyright holder saying it may be distributed

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Whether that is true depends on what the Program does.

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You may charge a fee for the physical act of transferring a copy, and

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This section is intended to make thoroughly clear what is believed to

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			    NO WARRANTY

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FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN

OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES

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		     END OF TERMS AND CONDITIONS

	    How to Apply These Terms to Your New Programs

  If you develop a new program, and you want it to be of the greatest

possible use to the public, the best way to achieve this is to make it

free software which everyone can redistribute and change under these terms.

  To do so, attach the following notices to the program.  It is safest

to attach them to the start of each source file to most effectively

convey the exclusion of warranty; and each file should have at least

the "copyright" line and a pointer to where the full notice is found.

    <one line to give the program's name and a brief idea of what it does.>

    Copyright (C) <year>  <name of author>

    This program is free software; you can redistribute it and/or modify

    it under the terms of the GNU General Public License as published by

    the Free Software Foundation; either version 2 of the License, or

    (at your option) any later version.

    This program is distributed in the hope that it will be useful,

    but WITHOUT ANY WARRANTY; without even the implied warranty of

    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License

    along with this program; if not, write to the Free Software

    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

Also add information on how to contact you by electronic and paper mail.

If the program is interactive, make it output a short notice like this

when it starts in an interactive mode:

    Gnomovision version 69, Copyright (C) year name of author

    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.

    This is free software, and you are welcome to redistribute it

    under certain conditions; type `show c' for details.

The hypothetical commands `show w' and `show c' should show the appropriate

parts of the General Public License.  Of course, the commands you use may

be called something other than `show w' and `show c'; they could even be

mouse-clicks or menu items--whatever suits your program.

You should also get your employer (if you work as a programmer) or your

school, if any, to sign a "copyright disclaimer" for the program, if

necessary.  Here is a sample; alter the names:

  Yoyodyne, Inc., hereby disclaims all copyright interest in the program

  `Gnomovision' (which makes passes at compilers) written by James Hacker.

  <signature of Ty Coon>, 1 April 1989

  Ty Coon, President of Vice

This General Public License does not permit incorporating your program into

proprietary programs.  If your program is a subroutine library, you may

consider it more useful to permit linking proprietary applications with the

library.  If this is what you want to do, use the GNU Library General

Public License instead of this License.

# Flickr API implementation

#

# Inspired largely by Michele Campeotto's flickrclient and Aaron Swartz'

# xmltramp... but I wanted to get a better idea of how python worked in

# those regards, so I mostly worked those components out for myself.

#

# http://micampe.it/things/flickrclient

# http://www.aaronsw.com/2002/xmltramp/

#

# Release 1: initial release

# Release 2: added upload functionality

# Release 3: code cleanup, convert to doc strings

# Release 4: better permission support

# Release 5: converted into fuller-featured "flickrapi"

# Release 6: fix upload sig bug (thanks Deepak Jois), encode test output

# Release 7: fix path construction, Manish Rai Jain's improvements, exceptions

# Release 8: change API endpoint to "api.flickr.com"

# Release 9: change to MIT license

# Release 10: fix horrid \r\n bug on final boundary

# Release 11: break out validateFrob() for subclassing

#

# Work by (or inspired by) Manish Rai Jain <manishrjain@gmail.com>:

#

#    improved error reporting, proper multipart MIME boundary creation,

#    use of urllib2 to allow uploads through a proxy, upload accepts

#    raw data as well as a filename

#

# Copyright (c) 2007 Brian "Beej Jorgensen" Hall

#

# Permission is hereby granted, free of charge, to any person obtaining

# a copy of this software and associated documentation files (the

# "Software"), to deal in the Software without restriction, including

# without limitation the rights to use, copy, modify, merge, publish,

# distribute, sublicense, and/or sell copies of the Software, and to

# permit persons to whom the Software is furnished to do so, subject to

# the following conditions:

#

# The above copyright notice and this permission notice shall be

# included in all copies or substantial portions of the Software.

#

# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,

# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.

# IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY

# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,

# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE

# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

#

# Certain previous versions of this API were granted to the public

# domain.  You're free to use those as you please.

#

# Beej Jorgensen, Maintainer, 19-Jan-2007

# beej@beej.us

#

#------------------------------------------

# Modified(debugged portions + added functionality) by Manish Rai Jain <manishrjain@gmail.com>

# If you are interested in finding out exactly

# what portions I have modified, just search for 'manish'. Each change is 

# tagged with my name for easy locate. 

# Additional modifications similarly tagged by R. David Murray <rdmurray@bitdance.com>

import sys

import md5

import string

import urllib

import httplib

import os.path

import xml.dom.minidom

import urllib2

import socket

DEBUG = 0

########################################################################

# XML functionality

########################################################################

#-----------------------------------------------------------------------

class XMLNode:

	"""XMLNode -- generic class for holding an XML node

	xmlStr = \"\"\"<xml foo="32">

	<name bar="10">Name0</name>

	<name bar="11" baz="12">Name1</name>

	</xml>\"\"\"

	f = XMLNode.parseXML(xmlStr)

	print f.elementName

	print f['foo']

	print f.name

	print f.name[0].elementName

	print f.name[0]["bar"]

	print f.name[0].elementText

	print f.name[1].elementName

	print f.name[1]["bar"]

	print f.name[1]["baz"]

	"""

	def __init__(self):

		"""Construct an empty XML node."""

		self.elementName=""

		self.elementText=""

		self.attrib={}

		self.xml=""

	def __setitem__(self, key, item):

		"""Store a node's attribute in the attrib hash."""

		self.attrib[key] = item

	def __getitem__(self, key):

		"""Retrieve a node's attribute from the attrib hash."""

		return self.attrib[key]

	# Modified here: add a couple of methods to make it even easier to handle errors.

	# Mod by: R. David Murray <rdmurray@bitdance.com>

	def __nonzero__(self):

		if self['stat'] == "fail": return False

		return True

	def get_errortext(self):

		if self: return ''

		return "%s: error %s: %s\n" % (self.elementName, \

				self.err[0]['code'], self.err[0]['msg'])

	errormsg = property(get_errortext)

	#-----------------------------------------------------------------------

	#@classmethod

	def parseXML(cls, xmlStr="", storeXML=False):

		"""Convert an XML string into a nice instance tree of XMLNodes.

		xmlStr -- the XML to parse

		storeXML -- if True, stores the XML string in the root XMLNode.xml

		"""

		def __parseXMLElement(element, thisNode):

			"""Recursive call to process this XMLNode."""

			thisNode.elementName = element.nodeName

			#print element.nodeName

			# add element attributes as attributes to this node

			for i in range(element.attributes.length):

				an = element.attributes.item(i)

				thisNode[an.name] = an.nodeValue

			for a in element.childNodes:

				if a.nodeType == xml.dom.Node.ELEMENT_NODE:

					child = XMLNode()

					try:

						list = getattr(thisNode, a.nodeName)

					except AttributeError:

						setattr(thisNode, a.nodeName, [])

					# add the child node as an attrib to this node

					list = getattr(thisNode, a.nodeName);

					#print "appending child: %s to %s" % (a.nodeName, thisNode.elementName)

					list.append(child);

					__parseXMLElement(a, child)

				elif a.nodeType == xml.dom.Node.TEXT_NODE:

					thisNode.elementText += a.nodeValue

			return thisNode

		dom = xml.dom.minidom.parseString(xmlStr)

		# get the root

		rootNode = XMLNode()

		if storeXML: rootNode.xml = xmlStr

		return __parseXMLElement(dom.firstChild, rootNode)

########################################################################

# Flickr functionality

########################################################################

#-----------------------------------------------------------------------

class FlickrAPI:

	"""Encapsulated flickr functionality.

	Example usage:

	  flickr = FlickrAPI(flickrAPIKey, flickrSecret)

	  rsp = flickr.auth_checkToken(api_key=flickrAPIKey, auth_token=token)

	"""

	flickrHost = "flickr.com"

	flickrRESTForm = "/services/rest/"

	flickrAuthForm = "/services/auth/"

	flickrUploadForm = "/services/upload/"

	#-------------------------------------------------------------------

	def __init__(self, apiKey, secret):

		"""Construct a new FlickrAPI instance for a given API key and secret."""

		self.apiKey = apiKey

		self.secret = secret

		self.__handlerCache={}

		socket.setdefaulttimeout(10)

	#-------------------------------------------------------------------

	def __sign(self, data):

		"""Calculate the flickr signature for a set of params.

		data -- a hash of all the params and values to be hashed, e.g.

		        {"api_key":"AAAA", "auth_token":"TTTT"}

		"""

		dataName = ""

		if self.secret is not None:

			dataName = self.secret

		#print data

		keys = data.keys()

		keys.sort()

		for a in keys:

			if data[a] is not None:

				dataName += "%s%s" % (a, data[a])

		#print 'dataName:', dataName

		hash = md5.new()

		hash.update(dataName)

		return hash.hexdigest()

	#-------------------------------------------------------------------

	def __getattr__(self, method, **arg):

		"""Handle all the flickr API calls.

		This is Michele Campeotto's cleverness, wherein he writes a

		general handler for methods not defined, and assumes they are

		flickr methods.  He then converts them to a form to be passed as

		the method= parameter, and goes from there.

		http://micampe.it/things/flickrclient

		My variant is the same basic thing, except it tracks if it has

		already created a handler for a specific call or not.

		example usage:

			flickr.auth_getFrob(api_key="AAAAAA")

			rsp = flickr.favorites_getList(api_key=flickrAPIKey, \\

				auth_token=token)

		"""

		if not self.__handlerCache.has_key(method):

			def handler(_self = self, _method = method, **arg):

				_method = "flickr." + _method.replace("_", ".")

				url = "http://" + FlickrAPI.flickrHost + \

					FlickrAPI.flickrRESTForm

				arg["method"] = _method

				# Modified here: use default api_key and auth_token if not supplied

				# Mod by: R. David Murray <rdmurray@bitdance.com>

				#API Key is used in all the methods. So, instead of specifying it as 

				#parameter in calling function, we can append it over here by default.

				#Token eq. to Authentication is not required for ALL methods. So, 

				#better specify when needed. -Manish

				if not 'api_key' in arg: arg["api_key"] = _self.apiKey

#				if not 'auth_token' in arg and hasattr(_self, 'token'): arg['auth_token'] = _self.token

				postData = str(urllib.urlencode(arg)) + "&api_sig=" + \

					str(_self.__sign(arg))

				if DEBUG:

					print "--url---------------------------------------------"

					print url

					print "--postData----------------------------------------"

					print postData

				data = '<rsp stat="ok"></rsp>'

				req = urllib2.Request(url, postData)

#				socket.defaulttimetout(60)

				f = urllib2.urlopen(req)

				data = f.read()

				if DEBUG:

					print "--response----------------------------------------"

					print data

				f.close()

				tempNode = XMLNode()

				# Modified here: added XMLNode() as the 1st argument

				# Mod by: Manish Rai Jain <manishrjain@gmail.com>

				return XMLNode.parseXML(XMLNode(),xmlStr=data, storeXML=True)

			self.__handlerCache[method] = handler;

		return self.__handlerCache[method]

	#-------------------------------------------------------------------

	def __getAuthURL(self, perms, frob):

		"""Return the authorization URL to get a token.

		This is the URL the app will launch a browser toward if it

		needs a new token.

		perms -- "read", "write", or "delete"

		frob -- picked up from an earlier call to FlickrAPI.auth_getFrob()

		"""

		data = {"api_key": self.apiKey, "frob": frob, "perms": perms}

		data["api_sig"] = self.__sign(data)

		return "http://%s%s?%s" % (FlickrAPI.flickrHost, \

			FlickrAPI.flickrAuthForm, urllib.urlencode(data))

	#-------------------------------------------------------------------

	def upload(self, filename, jpegData="", **arg):

		"""Upload a file to flickr.

		jpegData -- send buffered data read from file instead of filename

		Be extra careful you spell the parameters correctly, or you will

		get a rather cryptic "Invalid Signature" error on the upload!

		Supported parameters:

		api_key

		auth_token -- documentation mistakenly calls this "auth_hash"

		title

		description

		tags -- space-delimited list of tags, "tag1 tag2 tag3"

		is_public -- "1" or "0"

		is_friend -- "1" or "0"

		is_family -- "1" or "0"

		"""

		# verify key names

		for a in arg.keys():

			if a != "api_key" and a != "auth_token" and a != "title" and \

				a != "description" and a != "tags" and a != "is_public" and \

				a != "is_friend" and a != "is_family":

				sys.stderr.write("FlickrAPI: warning: unknown parameter " \

					"\"%s\" sent to FlickrAPI.upload\n" % (a))

		# Modified here: use default api_key and auth_token if not supplied

		# Mod by: R. David Murray <rdmurray@bitdance.com>

		if not 'api_key' in arg: arg["api_key"] = self.apiKey

		if not 'auth_token' in arg: arg['auth_token'] = self.token

		arg["api_sig"] = self.__sign(arg)

		url = "http://" + FlickrAPI.flickrHost + FlickrAPI.flickrUploadForm

		# construct POST data

#		boundary = "===beej=jorgensen==========7d45e178b0434"

		import mimetools

		boundary = mimetools.choose_boundary()

		Hdr = "multipart/form-data; boundary=%s" % boundary

		body = ""

		# required params

		for a in ('api_key', 'auth_token', 'api_sig'):

			body += "--%s\r\n" % (boundary)

			body += "Content-Disposition: form-data; name=\""+a+"\"\r\n\r\n"

			body += "%s\r\n" % (arg[a])

		# optional params

		for a in ('title', 'description', 'tags', 'is_public', \

			'is_friend', 'is_family'):

			if arg.has_key(a):

				body += "--%s\r\n" % (boundary)

				body += "Content-Disposition: form-data; name=\""+a+"\"\r\n\r\n"

				body += "%s\r\n" % (arg[a])

		body += "--%s\r\n" % (boundary)

		body += "Content-Disposition: form-data; name=\"photo\";"

		body += " filename=\"%s\"\r\n" % filename

		body += "Content-Type: image/jpeg\r\n\r\n"

		#print body

		try:

		# Added by Manish <manishrjain@gmail.com> for allowing upload

		# by sending buffer instead of specifying filename

			if jpegData=="":

				fp = file(filename, "rb")

				jpegData = fp.read()

				fp.close()

			postData = body.encode("utf_8") + jpegData + "\r\n" + \

				("--%s--" % (boundary)).encode("utf_8")

		# Modified by Manish <manishrjain@gmail.com> for allowing

		# upload through proxy

			request = urllib2.Request(url)

			request.add_data(postData)

			request.add_header("Content-Type", Hdr)

			response = urllib2.urlopen(request)

			rspXML = response.read()

			# Modified by Manish Rai Jain <manishrjain@gmail.com>

			return XMLNode.parseXML(XMLNode(), xmlStr=rspXML)

		except IOError:

			return None

	#-----------------------------------------------------------------------

	#@classmethod

	def testFailure(cls, rsp, exit=True):

		"""Exit app if the rsp XMLNode indicates failure."""

		if rsp['stat'] == "fail":

			sys.stderr.write("%s: error %s: %s\n" % (rsp.elementName, \

				rsp.err[0]['code'], rsp.err[0]['msg']))

			if exit: sys.exit(1)

	#-----------------------------------------------------------------------

	def __getCachedTokenPath(self):

		"""Return the directory holding the app data."""

		return os.path.expanduser("~/.flickr/%s" % (self.apiKey))

	#-----------------------------------------------------------------------

	def __getCachedTokenFilename(self):

		"""Return the full pathname of the cached token file."""

		return "%s/auth.xml" % (self.__getCachedTokenPath())

	#-----------------------------------------------------------------------

	def __getCachedToken(self):

		"""Read and return a cached token, or None if not found.

		The token is read from the cached token file, which is basically the

		entire RSP response containing the auth element.

		"""

		try:

			f = file(self.__getCachedTokenFilename(), "r")

			data = f.read()

			f.close()

			# Modified here: added XMLNode() as the 1st argument

			# Mod by: Manish Rai Jain <manishrjain@gmail.com>

			rsp = XMLNode.parseXML(XMLNode(), data)

			return rsp.auth[0].token[0].elementText

		except IOError:

			return None

	#-----------------------------------------------------------------------

	def __setCachedToken(self, xml):

		"""Cache a token for later use.

		The cached tag is stored by simply saving the entire RSP response

		containing the auth element.

		"""

		path = self.__getCachedTokenPath()

		if not os.path.exists(path):

			os.makedirs(path)

		f = file(self.__getCachedTokenFilename(), "w")

		f.write(xml)

		f.close()

	#-----------------------------------------------------------------------

	def getToken(self, perms="write", browser="lynx"):

		"""Get a token either from the cache, or make a new one from the

		frob.

		This first attempts to find a token in the user's token cache on

		disk.

		If that fails (or if the token is no longer valid based on

		flickr.auth.checkToken) a new frob is acquired.  The frob is

		validated by having the user log into flickr (with lynx), and

		subsequently a valid token is retrieved.

		The newly minted token is then cached locally for the next run.

		perms--"read", "write", or "delete"

		browser--whatever browser should be used in the system() call

		"""

		# see if we have a saved token

		token = self.__getCachedToken()

		# see if it's valid

		if token != None:

			rsp = self.auth_checkToken(api_key=self.apiKey, auth_token=token)

			if rsp['stat'] != "ok":

				token = None

			else:

				# see if we have enough permissions

				tokenPerms = rsp.auth[0].perms[0].elementText

				if tokenPerms == "read" and perms != "read": token = None

				elif tokenPerms == "write" and perms == "delete": token = None

		# get a new token if we need one

		if token == None:

			# get the frob

			rsp = self.auth_getFrob(api_key=self.apiKey)

			self.testFailure(rsp)

			frob = rsp.frob[0].elementText

			# validate online

			os.system("%s '%s'" % (browser, self.__getAuthURL(perms, frob)))

			# get a token

			rsp = self.auth_getToken(api_key=self.apiKey, frob=frob)

			self.testFailure(rsp)

			token = rsp.auth[0].token[0].elementText

			# store the auth info for next time

			self.__setCachedToken(rsp.xml)

		# Modified here: save the auth token to use as a default

		# Mod by: R. David Murray <rdmurray@bitdance.com>

		self.token = token

		return token

########################################################################

# App functionality

########################################################################

def main(argv):

	# flickr auth information:

	flickrAPIKey = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"  # API key

	flickrSecret = "yyyyyyyyyyyyyyyy"                  # shared "secret"

	# make a new FlickrAPI instance

	fapi = FlickrAPI(flickrAPIKey, flickrSecret)

	# do the whole whatever-it-takes to get a valid token:

	token = fapi.getToken(browser="/usr/bin/x-www-browser")

	# get my favorites

	rsp = fapi.favorites_getList(api_key=flickrAPIKey,auth_token=token)

	fapi.testFailure(rsp)

	# and print them

	for a in rsp.photos[0].photo:

		print "%10s: %s" % (a['id'], a['title'].encode("ascii", "replace"))

	# upload the file foo.jpg

	#rsp = fapi.upload("foo.jpg", api_key=flickrAPIKey, auth_token=token, \

	#	title="This is the title", description="This is the description", \

	#	tags="tag1 tag2 tag3", is_public="1")

	#if rsp == None:

	#	sys.stderr.write("can't find file\n")

	#else:

	#	fapi.testFailure(rsp)

	return 0

# run the main if we're not being imported:

if __name__ == "__main__": sys.exit(main(sys.argv))

#!/usr/bin/python

#===============================================================================

#  flickrfs - Virtual Filesystem for Flickr

#  Copyright (c) 2005,2006 Manish Rai Jain  <manishrjain@gmail.com>

#

#  This program can be distributed under the terms of the GNU GPL version 2, or 

#  its later versions. 

#

# DISCLAIMER: The API Key and Shared Secret are provided by the author in 

# the hope that it will prevent unnecessary trouble to the end-user. The 

# author will not be liable for any misuse of this API Key/Shared Secret 

# through this application/derived apps/any 3rd party apps using this key. 

#===============================================================================

__author__ =  "Manish Rai Jain (manishrjain@gmail.com)"

__license__ = "GPLv2 (details at http://www.gnu.org/licenses/licenses.html#GPL)"

import thread, string, ConfigParser, mimetypes, codecs

import time, logging, logging.handlers, os, sys

from glob import glob

from errno import *

from traceback import format_exc

# The python-fuse api has changed in 0.2, but we're still using the 0.1 api.

# The following two lines line will make us compatible with both versions by

# making 2.0 use the 1.0 api.

# (See http://fuse4bsd.creo.hu/README.new_fusepy_api.html)

import fuse

fuse.fuse_python_api = (0, 1)

Fuse = fuse.Fuse

import threading

import random, commands

from urllib2 import URLError

from transactions import TransFlickr

import inodes

#Some global definitions and functions

NUMRETRIES = 3

DEFAULTCONFIG = """\

[configuration]

browser: /usr/bin/x-www-browser

image.size:

sets.sync.int: 300

stream.sync.int: 300

"""

#Set up the .flickfs directory.

homedir = os.getenv('HOME')

flickrfsHome = os.path.join(homedir, '.flickrfs')

dbPath = os.path.join(flickrfsHome, '.inode.bdb')

if not os.path.exists(flickrfsHome):

  os.mkdir(os.path.join(flickrfsHome))

else:

  # Remove previous metadata files from ~/.flickrfs

  for a in glob(os.path.join(flickrfsHome, '.*')):

    os.remove(os.path.join(flickrfsHome, a))

  try:

    os.remove(dbPath)

  except:

    pass

# Added by Varun Hiremath

if not os.path.exists(flickrfsHome + "/config.txt"):

  fconfig = open(flickrfsHome+"/config.txt",'w')

  fconfig.write(DEFAULTCONFIG)

  fconfig.close()

# Set up logging

rootlogger = logging.getLogger()

loghdlr = logging.handlers.RotatingFileHandler(

                             os.path.join(flickrfsHome,'log'), "a", 5242880, 3)

logfmt = logging.Formatter("%(asctime)s %(name)-14s %(levelname)-7s %(threadName)-10s %(funcName)-22s %(message)s", "%x %X")

loghdlr.setFormatter(logfmt)

rootlogger.addHandler(loghdlr)

rootlogger.setLevel(logging.DEBUG)

log = logging.getLogger('flickrfs')

logattr = logging.getLogger('flickrfs.attr')

logattr.setLevel(logging.INFO)

cp = ConfigParser.ConfigParser()

cp.read(flickrfsHome + '/config.txt')

_resizeStr = ""

sets_sync_int = 600.0

stream_sync_int = 600.0

try:

  _resizeStr = cp.get('configuration', 'image.size')

except:

  print 'No default size of image found. Will upload original size of images.'

try:

  sets_sync_int = float(cp.get('configuration', 'sets.sync.int'))

except:

  pass

try:

  stream_sync_int = float(cp.get('configuration', 'stream.sync.int'))

except:

  pass

try:

  browserName = cp.get('configuration', 'browser')

except:

  pass

# Retrive the resize string.

def GetResizeStr():

  return _resizeStr

#Utility functions.

def _log_exception_wrapper(func, *args, **kw):

  """Call 'func' with args and kws and log any exception it throws.

  """

  for i in range(0, NUMRETRIES):

    log.debug("retry attempt %s for func %s", i, func.__name__)

    try:

      func(*args, **kw)

      return

    except:

      log.error("exception in function %s", func.__name__)

      log.error(format_exc())

def background(func, *args, **kw):

    """Run 'func' as a thread, logging any exceptions it throws.

    To run

      somefunc(arg1, arg2='value')

    as a thread, do:

      background(somefunc, arg1, arg2='value')

    Any exceptions thrown are logged as errors, and the traceback is logged.

    """

    thread.start_new_thread(_log_exception_wrapper, (func,)+args, kw)

def timerThread(func, func1, interval):

  '''Execute func now, followed by func1 every interval seconds

  '''

  log.debug("running first pass funtion %s", func.__name__)

  t = threading.Timer(0.0, func)

  try:

    t.run()

  except: 

    log.debug(format_exc())

  while(interval):

    log.debug("scheduling function %s to run in %s seconds",

        func1.__name__, interval)

    t = threading.Timer(interval, func1)

    try:

      t.run()

    except:

      log.debug(format_exc())

def retryFlickrOp(isNone, func, *args):

  # This function helps in retrying the flickr transactions, in case they fail.

  result = None

  for i in range(0, NUMRETRIES):

    log.debug("retry attempt %d for func %s", i, func.__name__)

    try:

      result = func(*args)

      if result is None:

        if isNone:

          return result

        else:

          continue

      else:

        return result

    except URLError, detail:

      log.error("URLError in function %s with error: %s",

          func.__name__, detail)

  # We've utilized all our attempts, send out the result whatever it is.

  return result

class Flickrfs(Fuse):

  def __init__(self, *args, **kw):

    Fuse.__init__(self, *args, **kw)

    log.info("mountpoint: %s", repr(self.mountpoint))

    log.info("mount options: %s", ', '.join(self.optlist))

    log.info("named mount options: %s",

        ', '.join([ "%s: %s" % (k, v) for k, v in self.optdict.items() ]))

    self.inodeCache = inodes.InodeCache(dbPath) # Inodes need to be stored.

    self.imgCache = inodes.ImageCache()

    self.NSID = ""

    self.transfl = TransFlickr(browserName)

    # Set some variables to be utilized by statfs function.

    self.statfsCounter = -1

    self.max = 0L

    self.used = 0L

    self.NSID = self.transfl.getUserId()

    if self.NSID is None:

      log.error("can't retrieve user information")

      sys.exit(-1)

    log.info('getting list of licenses available')

    self.licenses = self.transfl.getLicenses()

    if self.licenses is None:

      log.error("can't retrieve license information")

      sys.exit(-1)

    # do stuff to set up your filesystem here, if you want

    self._mkdir("/")

    self._mkdir("/tags")

    self._mkdir("/tags/personal")

    self._mkdir("/tags/public")

    background(timerThread, self.sets_thread, 

               self.sync_sets_thread, sets_sync_int) #sync every 2 minutes

  def imageResize(self, bufData):

    # If no resizing information is present, then return the buffer directly.

    if GetResizeStr() == "":

      return bufData

    # Else go ahead and do the conversion.

    im = '/tmp/flickrfs-' + str(int(random.random()*1000000000))

    f = open(im, 'w')

    f.write(bufData)

    f.close()

    cmd = 'identify -format "%%w" %s'%(im,)

    status,ret = commands.getstatusoutput(cmd)

    msg = ("%s command not found; you must install Imagemagick to get "

      "auto photo resizing")

    if status!=0:

      print msg % 'identify'

      log.error(msg, identify)

      return bufData

    try:

      if int(ret)<int(GetResizeStr().split('x')[0]):

        log.info('image size is smaller than size specified in config.txt;'

                 ' retaining original size')

        return bufData

    except:

      log.error('invalid format of image.size in config.txt')

      return bufData

    log.debug("resizing image %s to size %s" % (im, GetResizeStr()))

    cmd = 'convert %s -resize %s %s-conv'%(im, GetResizeStr(), im)

    ret = os.system(cmd)

    if ret!=0:

      print msg % 'convert'

      log.error(msg, 'convert')

      return bufData

    else:

      f = open(im + '-conv')

      return f.read()

  def writeMetaInfo(self, id, INFO):

    #The metadata may be unicode strings, so we need to encode them on write

    filePath = os.path.join(flickrfsHome, '.'+id)

    f = codecs.open(filePath, 'w', 'utf8')

    f.write('# Metadata file : flickrfs - Virtual filesystem for flickr\n')

    f.write('# Photo owner: %s NSID: %s\n' % (INFO[7], INFO[8]))

    f.write('# Handy link to photo: %s\n'%(INFO[9]))

    f.write('# Licences available: \n')

    for (k, v) in self.licenses:

      f.write('# %s : %s\n' % (k, v))

    f.write('[metainfo]\n')

    f.write("%s:%s\n"%('title', INFO[4]))

    f.write("%s:%s\n"%('description', INFO[3]))

    tags = ','.join(INFO[5])

    f.write("%s:%s\n"%('tags', tags))

    f.write("%s:%s\n"%('license',INFO[6]))

    f.close()

    f = open(filePath)

    f.read()

    fileSize = f.tell()

    f.close()

    return fileSize

  def __populate_set(self, set_id, curdir):

    # Exception handling will be done by background function.

    photosInSet = self.transfl.getPhotosFromPhotoset(set_id)

    for b,p in photosInSet.iteritems():

      info = self.transfl.parseInfoFromPhoto(b,p)

      self._mkfileWithMeta(curdir, info)

    log.info("set %s populated, photo count %s", curdir, len(photosInSet))

  def sets_thread(self):

    """

      The beauty of the FUSE python implementation is that with the 

      python interpreter running in foreground, you can have threads

    """

    print "Sets are being populated in the background."

    log.info("started")

    self._mkdir("/sets")

    for a in self.transfl.getPhotosetList():

      title = a.title[0].elementText.replace('/', '_')

      log.info("populating set %s", title)

      curdir = "/sets/" + title

      if title.strip()=='':

        curdir = "/sets/" + a['id']

      set_id = a['id']

      self._mkdir(curdir, id=set_id)

      self.__populate_set(set_id, curdir)

  def _sync_code(self, psetOnline, curdir):

    psetLocal = set(map(lambda x: x[0], self.getdir(curdir, False)))

    for b in psetOnline:

      info = self.transfl.parseInfoFromPhoto(b)

      imageTitle = info.get('title','')

      if hasattr(b, 'originalformat'):

        imageTitle = self.__getImageTitle(imageTitle, 

                                        b['id'], b['originalformat'])

      else:

        imageTitle = self.__getImageTitle(imageTitle, b['id'])

      path = "%s/%s"%(curdir, imageTitle)

      inode = self.inodeCache.get(path)

      # This exception throwing is just for debugging.

      if inode == None and self.inodeCache.has_key(path):

        e = OSError("Path %s present in inodeCache" % path)

        e.errno = ENOENT

        raise e

      if inode == None: # Image inode not present in the set.

        log.debug("new image found: %s", path)

        self._mkfileWithMeta(curdir, info)

      else:

        if inode.mtime != int(info.get('dupdate')):

          log.debug("image %s changed", path)

          self.inodeCache.pop(path)

          if self.inodeCache.has_key(path + ".meta"):

            self.inodeCache.pop(path + ".meta")

          self._mkfileWithMeta(curdir, info)

        psetLocal.discard(imageTitle)

    if len(psetLocal)>0:

      log.info('%s photos have been deleted online' % len(psetLocal))

    for c in psetLocal:

      log.info('deleting %s', c)

      self.unlink("%s/%s" % (curdir, c), False)

  def __sync_set_in_background(self, set_id, curdir):

    # Exception handling will be done by background function.

    log.info("syncing set %s", curdir)

    psetOnline = self.transfl.getPhotosFromPhotoset(set_id)

    self._sync_code(psetOnline, curdir)

    log.info("set %s sync successfully finished", curdir)

  def sync_sets_thread(self):

    log.info("started")

    setListOnline = self.transfl.getPhotosetList()

    setListLocal = self.getdir('/sets', False)

    for a in setListOnline:

      title = a.title[0].elementText.replace('/', '_')

      if title.strip()=="":

        title = a['id']

      if (title,0) not in setListLocal: #New set added online

        log.info("new set %s found online", title)

        self._mkdir('/sets/'+title, a['id'])

      else: #Present Online

        setListLocal.remove((title,0))

    for a in setListLocal: #List of sets present locally, but not online

      log.info('set %s no longer online, recursively deleting it', a)

      self.rmdir('/sets/'+a[0], online=False, recr=True)

    for a in setListOnline:

      title = a.title[0].elementText.replace('/', '_')

      curdir = "/sets/" + title

      if title.strip()=='':

        curdir = "/sets/" + a['id']

      set_id = a['id']

      self.__sync_set_in_background(set_id, curdir)

    log.info('finished')

  def sync_stream_thread(self):

    log.info('started')

    psetOnline = self.transfl.getPhotoStream(self.NSID)

    self._sync_code(psetOnline, '/stream')

    log.info('finished')

  def stream_thread(self):

    log.info("started")

    print "Populating photostream"

    for b in self.transfl.getPhotoStream(self.NSID):

      info = self.transfl.parseInfoFromPhoto(b)

      self._mkfileWithMeta('/stream', info)

    log.info("finished")

    print "Photostream population finished."

  def tags_thread(self, path):

    ind = string.rindex(path, '/')

    tagName = path[ind+1:]

    if tagName.strip()=='':

      log.error("the tagName '%s' doesn't contain any tags", tagName)

      return 

    log.info("started for %s", tagName)

    sendtagList = ','.join(tagName.split(':'))

    if(path.startswith('/tags/personal')):

      user_id = self.NSID

    else:

      user_id = None

    for b in self.transfl.getTaggedPhotos(sendtagList, user_id):

      info = self.transfl.parseInfoFromPhoto(b)

      self._mkfileWithMeta(path, info)

  def getUnixPerms(self, info):

    mode = info.get('mode')

    if mode is not None:

      return mode

    perms = info.get('perms')

    if perms is None:

      return 0644

    if perms is "1": # public

      return 0755

    elif perms is "2": # friends only. Add 1 to 4 in middle letter.

      return 0754

    elif perms is "3": # family only. Add 2 to 4 in middle letter.

      return 0764

    elif perms is "4": # friends and family. Add 1+2 to 4 in middle letter.

      return 0774

    else:

      return 0744 # private

  def __getImageTitle(self, title, id, format = "jpg"):

    temp = title.replace('/', '')

#    return "%s_%s.%s" % (temp[:32], id, format)

    # Store the photos original name. Thus, when pictures are uploaded

    # their names would remain as it is, allowing easy resumption of

    # uploading of images, in case some of the photos fail uploading.

    return "%s.%s" % (temp, format)

  def _mkfileWithMeta(self, path, info):

    # Don't write the meta information here, because it requires access to

    # the full INFO. Only do with the smaller version of information that

    # is provided.

    if info is None:

      return

    title = info.get("title", "")

    id =    info.get("id", "")

    ext =   info.get("format", "jpg")

    title = self.__getImageTitle(title, id, ext)

    # Refactor this section of code, so that it can be called

    # from read.

    # Figure out a way to retrieve information, which can be 

    # used in _mkfile.

    mtime = info.get("dupdate")

    ctime = info.get("dupload")

    perms = self.getUnixPerms(info)

    self._mkfile(path+"/"+title, id=id, mode=perms, mtime=mtime, ctime=ctime)

    self._mkfile(path+'/.'+title+'.meta', id)

  def _parsepathid(self, path, id=""):

    #Path and Id may be unicode strings, so encode them to utf8 now before

    #we use them, otherwise python will throw errors when we combine them

    #with regular strings.

    path = path.encode('utf8')

    if id!=0: id = id.encode('utf8')

    parentDir, name = os.path.split(path)

    if parentDir=='':

      parentDir = '/'

    log.debug("parentDir %s", parentDir)

    return path, id, parentDir, name

  def _mkdir(self, path, id="", mtime=None, ctime=None):

    path, id, parentDir, name = self._parsepathid(path, id)

    log.debug("creating directory %s", path)

    self.inodeCache[path] = inodes.DirInode(path, id, mtime=mtime, ctime=ctime)

    if path!='/':

      pinode = self.getInode(parentDir)

      pinode.nlink += 1

      self.updateInode(parentDir, pinode)

      log.debug("nlink of %s is now %s", parentDir, pinode.nlink)

  def _mkfile(self, path, id="", mode=None, 

              comm_meta="", mtime=None, ctime=None):

    path, id, parentDir, name = self._parsepathid(path, id)

    log.debug("creating file %s with id %s", path, id)

    image_name, extension = os.path.splitext(name)

    if not extension:

      log.error("can't create file without extension")

      return

    fInode = inodes.FileInode(path, id, mode=mode, comm_meta=comm_meta,

                              mtime=mtime, ctime=ctime)

    self.inodeCache[path] = fInode

    # Now create the meta info inode if the meta info file exists

    # refactoring: create the meta info inode, regardless of the

    # existence of datapath.

#    path = os.path.join(parentDir, '.' + image_name + '.meta')

#    datapath = os.path.join(flickrfsHome, '.'+id)

#    if os.path.exists(datapath):

#    size = os.path.getsize(datapath)

#    self.inodeCache[path] = FileInode(path, id)

  def getattr(self, path):

    # getattr is being called 4-6 times every second for '/'

    # Don't log those calls, as they clutter up the log file.

    if path != "/":

      logattr.debug("getattr: %s", path)

    templist = path.split('/')

    if path.startswith('/sets/'):

      templist[2] = templist[2].split(':')[0]

    elif path.startswith('/stream'):

      templist[1] = templist[1].split(':')[0]

    path = '/'.join(templist)

    inode=self.getInode(path)

    if inode:

      #log.debug("inode %s", inode)

      statTuple = (inode.mode,inode.ino,inode.dev,inode.nlink,

          inode.uid,inode.gid,inode.size,inode.atime,inode.mtime,inode.ctime)

      #log.debug("statsTuple %s", statTuple)

      return statTuple

    else:

      e = OSError("No such file"+path)

      e.errno = ENOENT

      raise e

  def readlink(self, path):

    log.debug("readlink")

    return os.readlink(path)

  def getdir(self, path, hidden=True):

    logattr.debug("getdir: %s", path)

    templist = []

    if hidden:

      templist = ['.', '..']

    for a in self.inodeCache.keys():

      ind = a.rindex('/')

      if path=='/':

        path=""

      if path==a[:ind]:

        name = a.split('/')[-1]

        if name=="":

          continue

        if hidden and name.startswith('.'):

          templist.append(name)

        elif not name.startswith('.'):

          templist.append(name)

    return map(lambda x: (x,0), templist)

  def unlink(self, path, online=True):

    log.debug("unlink %s", path)

    if self.inodeCache.has_key(path):

      inode = self.inodeCache.pop(path)