websubmit_managedocfiles.py
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websubmit_managedocfiles.py
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	## $Id: Revise_Files.py,v 1.37 2009/03/26 15:11:05 jerome Exp $

	## This file is part of CDS Invenio.
	## Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008 CERN.
	##
	## CDS Invenio 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.
	##
	## CDS Invenio 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 CDS Invenio; if not, write to the Free Software Foundation, Inc.,
	## 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
	"""
	WebSubmit Upload File Interface utils
	=====================================

	Tools to help with creation of file management interfaces.

	Contains the two main functions `create_file_upload_interface' and
	`move_uploaded_files_to_storage', which must be run one after the
	other:

	- create_file_upload_interface: Generates the HTML of an interface to
	revise files of a given record. The actions on the files are
	recorded in a working directory, but not applied to the record.

	- move_uploaded_files_to_storage: Applies/executes the modifications
	on files as recorded by the `create_file_upload_interface'
	function.

	Theses functions are a complex interplay of HTML, Javascript and HTTP
	requests. They are not meant to be used in any type of scenario, but
	require to be used in extremely specific contexts (Currently in
	WebSubmit Response Elements, WebSubmit functions and the WebSubmit
	File Management interface).

	NOTES:
	======

	- Comments are not considered as a property of bibdocfiles, but
	bibdocs: this conflicts with the APIs

	FIXME:
	======

	- refactor into smaller components. Eg. form processing in
	create_file_upload_interface could be move outside the function.

	- better differentiate between revised file, and added format
	(currently when adding a format, the whole bibdoc is marked as
	updated, and all links are removed)

	- After a file has been revised or added, add a 'check' icon

	- One issue: if we allow deletion or renaming, we might lose track of
	a bibdoc: someone adds X, renames X->Y, and adds again another file
	with name X: when executing actions, we will add the second X, and
	rename it to Y
	-> need to go back in previous action when renaming... or check
	that name has never been used..

	DEPENDENCIES:
	=============
	- jQuery Form plugin U{http://jquery.malsup.com/form/}
	"""
	import cPickle
	import os
	import time

	from urllib import urlencode

	from invenio.config import \
	CFG_SITE_LANG, \
	CFG_SITE_URL, \
	CFG_BINDIR, \
	CFG_WEBSUBMIT_STORAGEDIR, \
	CFG_TMPDIR, \
	CFG_SITE_SUPPORT_EMAIL
	from invenio.messages import gettext_set_language
	from invenio.bibdocfile import BibRecDocs, \
	decompose_file, calculate_md5, BibDocFile, \
	InvenioWebSubmitFileError, BibDocMoreInfo
	from invenio.websubmit_functions.Shared_Functions import \
	createRelatedFormats
	from invenio.errorlib import register_exception
	from invenio.dbquery import run_sql
	from invenio.shellutils import run_shell_command
	from invenio.websubmit_icon_creator import \
	create_icon, InvenioWebSubmitIconCreatorError
	from invenio.urlutils import create_html_mailto
	from invenio.websubmit_config import CFG_WEBSUBMIT_DEFAULT_ICON_SUBFORMAT

	CFG_ALLOWED_ACTIONS = ['revise', 'delete', 'add', 'addFormat']

	def create_file_upload_interface(recid,
	form=None,
	print_outside_form_tag=True,
	print_envelope=True,
	include_headers=False,
	ln=CFG_SITE_LANG,
	minsize='', maxsize='',
	doctypes_and_desc=None,
	can_delete_doctypes=None,
	can_revise_doctypes=None,
	can_describe_doctypes=None,
	can_comment_doctypes=None,
	can_keep_doctypes=None,
	can_rename_doctypes=None,
	can_add_format_to_doctypes=None,
	create_related_formats=True,
	can_name_new_files=True,
	keep_default=True, show_links=True,
	file_label=None, filename_label=None,
	description_label=None, comment_label=None,
	restrictions_and_desc=None,
	can_restrict_doctypes=None,
	restriction_label=None,
	doctypes_to_default_filename=None,
	max_files_for_doctype=None,
	sbm_indir=None, sbm_doctype=None, sbm_access=None,
	uid=None, sbm_curdir=None):
	"""
	Returns the HTML for the file upload interface.

	@param recid: the id of the record to edit files
	@type recid: int or None

	@param form: the form sent by the user's browser in response to a
	user action. This is used to read and record user's
	actions.
	@param form: as returned by the interface handler.

	@param print_outside_form_tag: display encapsulating <form> tag or
	not
	@type print_outside_form_tag: boolean

	@param print_envelope: (internal parameter) if True, return the
	encapsulating initial markup, otherwise
	skip it.
	@type print_envelope: boolean

	@param include_headers: include javascript and css headers in the
	body of the page. If you set this to
	False, you must take care of including
	these headers in your page header. Setting
	this parameter to True is useful if you
	cannot change the page header.
	@type include_headers: boolean

	@param ln: language
	@type ln: string

	@param minsize: the minimum size (in bytes) allowed for the
	uploaded files. Files not big enough are
	discarded.
	@type minsize: int

	@param maxsize: the maximum size (in bytes) allowed for the
	uploaded files. Files too big are discarded.
	@type maxsize: int

	@param doctypes_and_desc: the list of doctypes (like 'Main' or
	'Additional') and their description that users
	can choose from when adding new files.
	- When no value is provided, users cannot add new
	file (they can only revise/delete/add format)
	- When a single value is given, it is used as
	default doctype for all new documents

	Order is relevant
	Eg:
	[('main', 'Main document'), ('additional', 'Figure, schema. etc')]
	@type doctypes_and_desc: list(tuple(string, string))

	@param restrictions_and_desc: the list of restrictions (like 'Restricted' or
	'No Restriction') and their description that
	users can choose from when adding or revising
	files. Restrictions can then be configured at
	the level of WebAccess.
	- When no value is provided, no restriction is
	applied
	- When a single value is given, it is used as
	default resctriction for all documents.
	- The first value of the list is used as default
	restriction if the user if not given the
	choice of the restriction. Order is relevant

	Eg:
	[('', 'No restriction'), ('restr', 'Restricted')]
	@type restrictions_and_desc: list(tuple(string, string))

	@param can_delete_doctypes: the list of doctypes that users are
	allowed to delete.
	Eg: ['main', 'additional']
	Use ['*'] for "all doctypes"
	@type can_delete_doctypes: list(string)

	@param can_revise_doctypes: the list of doctypes that users are
	allowed to revise
	Eg: ['main', 'additional']
	Use ['*'] for "all doctypes"
	@type can_revise_doctypes: list(string)

	@param can_describe_doctypes: the list of doctypes that users are
	allowed to describe
	Eg: ['main', 'additional']
	Use ['*'] for "all doctypes"
	@type can_describe_doctypes: list(string)

	@param can_comment_doctypes: the list of doctypes that users are
	allowed to comment
	Eg: ['main', 'additional']
	Use ['*'] for "all doctypes"
	@type can_comment_doctypes: list(string)

	@param can_keep_doctypes: the list of doctypes for which users can
	choose to keep previous versions visible when
	revising a file (i.e. 'Keep previous version'
	checkbox). See also parameter 'keepDefault'.
	Note that this parameter is ~ignored when
	revising the attributes of a file (comment,
	description) without uploading a new
	file. See also parameter
	Move_Uploaded_Files_to_Storage.force_file_revision
	Eg: ['main', 'additional']
	Use ['*'] for "all doctypes"
	@type can_keep_doctypes: list(string)


	@param can_add_format_to_doctypes: the list of doctypes for which users can
	add new formats. If there is no value,
	then no 'add format' link nor warning
	about losing old formats are displayed.
	Eg: ['main', 'additional']
	Use ['*'] for "all doctypes"
	@type can_add_format_to_doctypes: list(string)

	@param can_restrict_doctypes: the list of doctypes for which users can
	choose the access restrictions when adding or
	revising a file. If no value is given:
	- no restriction is applied if none is defined
	in the 'restrictions' parameter.
	- else the first value of the 'restrictions'
	parameter is used as default restriction.

	Eg: ['main', 'additional']
	Use ['*'] for "all doctypes"
	@type can_restrict_doctypes : list(string)

	@param can_rename_doctypes: the list of doctypes that users are allowed
	to rename (when revising)
	Eg: ['main', 'additional']
	Use ['*'] for "all doctypes"
	@type can_rename_doctypes: list(string)

	@param can_name_new_files: if user can choose the name of the files they
	upload or not
	@type can_name_new_files: boolean

	@param doctypes_to_default_filename: Rename uploaded files to admin-chosen
	values. List here the the files in
	current submission directory that
	contain the names to use for each doctype.
	Eg:
	{'main': RN', 'additional': 'additional_filename'}

	If the same doctype is submitted
	several times, a"-%i" suffix is added
	to the name defined in the file.

	The default filenames are overriden
	by user-chosen names if you allow
	'can_name_new_files' or
	'can_rename_doctypes'.
	@type doctypes_to_default_filename: dict

	@param max_files_for_doctype: the maximum number of files that users can
	upload for each doctype.
	Eg: {'main': 1, 'additional': 2}

	Do not specify the doctype here to have an
	unlimited number of files for a given
	doctype.
	@type max_files_for_doctype: dict

	@param create_related_formats: if uploaded files get converted to
	whatever format we can or not
	@type create_related_formats: boolean

	@param keep_default: the default behaviour for keeping or not previous
	version of files when users cannot choose (no
	value in can_keep_doctypes).
	Note that this parameter is ignored when revising
	the attributes of a file (comment, description)
	without uploading a new file. See also parameter
	Move_Uploaded_Files_to_Storage.force_file_revision
	@type keep_default: boolean

	@param show_links: if we display links to files when possible or
	not
	@type show_links: boolean

	@param file_label: the label for the file field
	@type file_label: string

	@param filename_label: the label for the file name field
	@type filename_label: string

	@param description_label: the label for the description field
	@type description_label: string

	@param comment_label: the label for the comments field
	@type comment_label: string

	@param restriction_label: the label in front of the restrictions list
	@type restriction_label: string

	@param sbm_indir: the submission indir parameter, in case the
	function is used in a WebSubmit submission
	context.
	This value will be used to retrieve where to
	read the current state of the interface and
	store uploaded files
	@type sbm_indir : string

	@param sbm_doctype: the submission doctype parameter, in case the
	function is used in a WebSubmit submission
	context.
	This value will be used to retrieve where to
	read the current state of the interface and
	store uploaded files
	@type sbm_doctype: string

	@param sbm_access: the submission access parameter. Must be
	specified in the context of WebSubmit
	submission, as well when used in the
	WebSubmit Admin file management interface.

	This value will be used to retrieve where to
	read the current state of the interface and
	store uploaded files
	@type sbm_access: string

	@param sbm_curdir: the submission curdir parameter. Must be
	specified in the context of WebSubmit
	function Create_Upload_File_Interface.

	This value will be used to retrieve where to
	read the current state of the interface and
	store uploaded files.
	@type sbm_curdir: string

	@param uid: the user id
	@type uid: int

	@return Tuple (errorcode, html)
	"""
	# Clean and set up a few parameters
	_ = gettext_set_language(ln)
	body = ''
	if not file_label:
	file_label = _('Choose a file')
	if not filename_label:
	filename_label = _('Name')
	if not description_label:
	description_label = _('Description')
	if not comment_label:
	comment_label = _('Comment')
	if not restriction_label:
	restriction_label = _('Access')
	if not doctypes_and_desc:
	doctypes_and_desc = []
	if not can_delete_doctypes:
	can_delete_doctypes = []
	if not can_revise_doctypes:
	can_revise_doctypes = []
	if not can_describe_doctypes:
	can_describe_doctypes = []
	if not can_comment_doctypes:
	can_comment_doctypes = []
	if not can_keep_doctypes:
	can_keep_doctypes = []
	if not can_rename_doctypes:
	can_rename_doctypes = []
	if not can_add_format_to_doctypes:
	can_add_format_to_doctypes = []
	if not restrictions_and_desc:
	restrictions_and_desc = []
	if not can_restrict_doctypes:
	can_restrict_doctypes = []
	if not doctypes_to_default_filename:
	doctypes_to_default_filename = {}
	if not max_files_for_doctype:
	max_files_for_doctype = {}

	doctypes = [doctype for (doctype, desc) in doctypes_and_desc]

	# Retrieve/build a working directory to save uploaded files and
	# states + configuration.
	working_dir = None
	if sbm_indir and sbm_doctype and sbm_access:
	# Write/read configuration to/from working_dir (WebSubmit mode).
	# Retrieve the interface configuration from the current
	# submission directory.
	working_dir = os.path.join(CFG_WEBSUBMIT_STORAGEDIR,
	sbm_indir,
	sbm_doctype,
	sbm_access)
	try:
	assert(working_dir == os.path.abspath(working_dir))
	except AssertionError:
	register_exception(prefix='Cannot create file upload interface: ' + \
	+ 'missing parameter ',
	alert_admin=True)
	return (1, "Unauthorized parameters")

	form_url_params = "?" + urlencode({'access': sbm_access,
	'indir': sbm_indir,
	'doctype': sbm_doctype})
	elif uid and sbm_access:
	# WebSubmit File Management (admin) interface mode.
	# Working directory is in CFG_TMPDIR
	working_dir = os.path.join(CFG_TMPDIR,
	'websubmit_upload_interface_config_' + str(uid),
	sbm_access)
	try:
	assert(working_dir == os.path.abspath(working_dir))
	except AssertionError:
	register_exception(prefix='Some user tried to access ' \
	+ working_dir + \
	' which is different than ' + \
	os.path.abspath(working_dir),
	alert_admin=True)
	return (1, "Unauthorized parameters")
	if not os.path.exists(working_dir):
	os.makedirs(working_dir)

	form_url_params = "?" + urlencode({'access': sbm_access})
	elif sbm_curdir:
	# WebSubmit Create_Upload_File_Interface.py function
	working_dir = sbm_curdir
	form_url_params = None
	else:
	register_exception(prefix='Some user tried to access ' \
	+ working_dir + \
	' which is different than ' + \
	os.path.abspath(working_dir),
	alert_admin=True)
	return (1, "Unauthorized parameters")

	# Save interface configuration, if this is the first time we come
	# here, or else load parameters
	try:
	parameters = _read_file_revision_interface_configuration_from_disk(working_dir)
	(minsize, maxsize, doctypes_and_desc, doctypes,
	can_delete_doctypes, can_revise_doctypes,
	can_describe_doctypes,
	can_comment_doctypes, can_keep_doctypes,
	can_rename_doctypes,
	can_add_format_to_doctypes, create_related_formats,
	can_name_new_files, keep_default, show_links,
	file_label, filename_label, description_label,
	comment_label, restrictions_and_desc,
	can_restrict_doctypes,
	restriction_label, doctypes_to_default_filename,
	max_files_for_doctype, print_outside_form_tag) = parameters
	except:
	# Initial display of the interface: save configuration to
	# disk for later reuse
	parameters = (minsize, maxsize, doctypes_and_desc, doctypes,
	can_delete_doctypes, can_revise_doctypes,
	can_describe_doctypes,
	can_comment_doctypes, can_keep_doctypes,
	can_rename_doctypes,
	can_add_format_to_doctypes, create_related_formats,
	can_name_new_files, keep_default, show_links,
	file_label, filename_label, description_label,
	comment_label, restrictions_and_desc,
	can_restrict_doctypes,
	restriction_label, doctypes_to_default_filename,
	max_files_for_doctype, print_outside_form_tag)
	_write_file_revision_interface_configuration_to_disk(working_dir, parameters)

	# Get the existing bibdocs as well as the actions performed during
	# the former revise sessions of the user, to build an updated list
	# of documents. We will use it to check if last action performed
	# by user is allowed.
	performed_actions = read_actions_log(working_dir)
	if recid:
	bibrecdocs = BibRecDocs(recid)
	# Create the list of files based on current files and performed
	# actions
	bibdocs = bibrecdocs.list_bibdocs()
	else:
	bibdocs = []

	# "merge":
	abstract_bibdocs = build_updated_files_list(bibdocs,
	performed_actions,
	recid or -1)

	# If any, process form submitted by user
	if form:
	## Get and clean parameters received from user
	(file_action, file_target, file_target_doctype,
	keep_previous_files, file_description, file_comment, file_rename,
	file_doctype, file_restriction, uploaded_filename, uploaded_filepath) = \
	wash_form_parameters(form, abstract_bibdocs, can_keep_doctypes,
	keep_default, can_describe_doctypes, can_comment_doctypes,
	can_rename_doctypes, can_name_new_files, can_restrict_doctypes,
	doctypes_to_default_filename, working_dir)

	## Check the last action performed by user, and log it if
	## everything is ok
	if uploaded_filepath and \
	((file_action == 'add' and (file_doctype in doctypes)) or \
	(file_action == 'revise' and \
	((file_target_doctype in can_revise_doctypes) or \
	'*' in can_revise_doctypes)) or
	(file_action == 'addFormat' and \
	((file_target_doctype in can_add_format_to_doctypes) or \
	'*' in can_add_format_to_doctypes))):
	# A file has been uploaded (user has revised or added a file,
	# or a format)
	dirname, filename, extension = decompose_file(uploaded_filepath)
	os.unlink("%s/myfile" % working_dir)
	if minsize.isdigit() and os.path.getsize(uploaded_filepath) < int(minsize):
	os.unlink(uploaded_filepath)
	body += '<script>alert("%s");</script>' % \
	(_("The uploaded file is too small (<%i o) and has therefore not been considered") % \
	int(minsize)).replace('"', '\\"')
	elif maxsize.isdigit() and os.path.getsize(uploaded_filepath) > int(maxsize):
	os.unlink(uploaded_filepath)
	body += '<script>alert("%s");</script>' % \
	(_("The uploaded file is too big (>%i o) and has therefore not been considered") % \
	int(maxsize)).replace('"', '\\"')
	elif len(filename) + len(extension) + 4 > 255:
	# Max filename = 256, including extension and version that
	# will be appended later by BibDoc
	os.unlink(uploaded_filepath)
	body += '<script>alert("%s");</script>' % \
	_("The uploaded file name is too long and has therefore not been considered").replace('"', '\\"')

	elif file_action == 'add' and \
	max_files_for_doctype.has_key(file_doctype) and \
	max_files_for_doctype[file_doctype] < \
	(len([bibdoc for bibdoc in abstract_bibdocs \
	if bibdoc['get_type'] == file_doctype]) + 1):
	# User has tried to upload more than allowed for this
	# doctype. Should never happen, unless the user did some
	# nasty things
	os.unlink(uploaded_filepath)
	body += '<script>alert("%s");</script>' % \
	_("You have already reached the maximum number of files for this type of document").replace('"', '\\"')

	else:
	# Prepare to move file to
	# working_dir/files/updated/doctype/bibdocname/
	folder_doctype = file_doctype or \
	bibrecdocs.get_bibdoc(file_target).get_type()
	folder_bibdocname = file_rename or file_target or filename
	new_uploaded_filepath = os.path.join(working_dir, 'files', 'updated',
	folder_doctype,
	folder_bibdocname, uploaded_filename)

	# First check that we do not conflict with an already
	# existing bibdoc name
	if file_action == "add" and \
	((filename in [bibdoc['get_docname'] for bibdoc \
	in abstract_bibdocs] and not file_rename) or \
	file_rename in [bibdoc['get_docname'] for bibdoc \
	in abstract_bibdocs]):
	# A file with that name already exist. Cancel action
	# and tell user.
	os.unlink(uploaded_filepath)
	body += '<script>alert("%s");</script>' % \
	(_("A file named %s already exists. Please choose another name.") % \
	(file_rename or filename)).replace('"', '\\"')

	elif file_action == "revise" and \
	file_rename != file_target and \
	file_rename in [bibdoc['get_docname'] for bibdoc \
	in abstract_bibdocs]:
	# A file different from the one to revise already has
	# the same bibdocname
	os.unlink(uploaded_filepath)
	body += '<script>alert("%s");</script>' % \
	(_("A file named %s already exists. Please choose another name.") % \
	file_rename).replace('"', '\\"')

	elif file_action == "addFormat" and \
	(extension in \
	get_extensions_for_docname(file_target,
	abstract_bibdocs)):
	# A file with that extension already exists. Cancel
	# action and tell user.
	os.unlink(uploaded_filepath)
	body += '<script>alert("%s");</script>' % \
	(_("A file with format '%s' already exists. Please upload another format.") % \
	extension).replace('"', '\\"')
	elif '.' in file_rename or '/' in file_rename or "\\" in file_rename or \
	not os.path.abspath(new_uploaded_filepath).startswith(os.path.join(working_dir, 'files', 'updated')):
	# We forbid usage of a few characters, for the good of
	# everybody...
	os.unlink(uploaded_filepath)
	body += '<script>alert("%s");</script>' % \
	_("You are not allowed to use dot '.', slash '/', or backslash '\\\\' in file names. Choose a different name and upload your file again. In particular, note that you should not include the extension in the renaming field.").replace('"', '\\"')
	else:
	# No conflict with file name

	# When revising, delete previously uploaded files for
	# this entry, so that we do not execute the
	# corresponding action
	if file_action == "revise":
	for path_to_delete in \
	get_uploaded_files_for_docname(working_dir, file_target):
	delete_file(working_dir, path_to_delete)

	# Move uploaded file to working_dir/files/updated/doctype/bibdocname/
	os.renames(uploaded_filepath, new_uploaded_filepath)

	if file_action == "add":
	# if not bibrecdocs.check_file_exists(new_uploaded_filepath): # No need to check: done before...
	# Log
	if file_rename != '':
	# at this point, bibdocname is specified
	# name, no need to 'rename'
	filename = file_rename
	log_action(working_dir, file_action, filename,
	new_uploaded_filepath, file_rename,
	file_description, file_comment,
	file_doctype, keep_previous_files,
	file_restriction)

	# Automatically create additional formats when
	# possible.
	additional_formats = []
	if create_related_formats:
	additional_formats = createRelatedFormats(new_uploaded_filepath,
	overwrite=False)

	for additional_format in additional_formats:
	# Log
	log_action(working_dir, 'addFormat', filename,
	additional_format, file_rename,
	file_description, file_comment,
	file_doctype, True, file_restriction)

	if file_action == "revise" and file_target != "":
	# Log
	log_action(working_dir, file_action, file_target,
	new_uploaded_filepath, file_rename,
	file_description, file_comment,
	file_target_doctype, keep_previous_files,
	file_restriction)
	# Automatically create additional formats when
	# possible.
	additional_formats = []
	if create_related_formats:
	additional_formats = createRelatedFormats(new_uploaded_filepath,
	overwrite=False)

	for additional_format in additional_formats:
	# Log
	log_action(working_dir, 'addFormat',
	(file_rename or file_target),
	additional_format, file_rename,
	file_description, file_comment,
	file_target_doctype, True,
	file_restriction)

	if file_action == "addFormat" and file_target != "":
	# We have already checked above that this format does
	# not already exist.
	# Log
	log_action(working_dir, file_action, file_target,
	new_uploaded_filepath, file_rename,
	file_description, file_comment,
	file_target_doctype, keep_previous_files,
	file_restriction)

	elif file_action in ["add", "addFormat"]:
	# No file found, but action involved adding file: ask user to
	# select a file
	body += """<script>
	alert("You did not specify a file. Please choose one before uploading.");
	</script>"""

	elif file_action == "revise" and file_target != "":
	# User has chosen to revise attributes of a file (comment,
	# name, etc.) without revising the file itself.
	if file_rename != file_target and \
	file_rename in [bibdoc['get_docname'] for bibdoc \
	in abstract_bibdocs]:
	# A file different from the one to revise already has
	# the same bibdocname
	body += '<script>alert("%s");</script>' % \
	(_("A file named %s already exists. Please choose another name.") % \
	file_rename).replace('"', '\\"')
	else:
	# Log
	log_action(working_dir, file_action, file_target,
	"", file_rename,
	file_description, file_comment,
	file_target_doctype, keep_previous_files,
	file_restriction)


	elif file_action == "delete" and file_target != "" and \
	((file_target_doctype in can_delete_doctypes) or \
	'*' in can_delete_doctypes):
	# Delete previously uploaded files for this entry
	for path_to_delete in get_uploaded_files_for_docname(working_dir, file_target):
	delete_file(working_dir, path_to_delete)
	# Log
	log_action(working_dir, file_action, file_target, "", file_rename,
	file_description, file_comment, "",
	keep_previous_files, file_restriction)

	## Display

	performed_actions = read_actions_log(working_dir)
	#performed_actions = []
	if recid:
	bibrecdocs = BibRecDocs(recid)
	# Create the list of files based on current files and performed
	# actions
	bibdocs = bibrecdocs.list_bibdocs()
	else:
	bibdocs = []

	abstract_bibdocs = build_updated_files_list(bibdocs, performed_actions, recid or -1)
	abstract_bibdocs.sort(lambda x, y: x['order'] - y['order'])

	# Display form and necessary CSS + Javscript
	#body += '<div>'
	#body += css
	js_can_describe_doctypes = repr({}.fromkeys(can_describe_doctypes, ''))
	js_can_comment_doctypes = repr({}.fromkeys(can_comment_doctypes, ''))
	js_can_restrict_doctypes = repr({}.fromkeys(can_restrict_doctypes, ''))

	# Prepare to display file revise panel "balloon". Check if we
	# should display the list of doctypes or if it is not necessary (0
	# or 1 doctype). Also make sure that we do not exceed the maximum
	# number of files specified per doctype. The markup of the list of
	# doctypes is prepared here, and will be passed as parameter to
	# the display_revise_panel function
	cleaned_doctypes = [doctype for doctype in doctypes if
	not max_files_for_doctype.has_key(doctype) or
	(max_files_for_doctype[doctype] > \
	len([bibdoc for bibdoc in abstract_bibdocs \
	if bibdoc['get_type'] == doctype]))]
	doctypes_list = ""
	if len(cleaned_doctypes) > 1:
	doctypes_list = '<select id="fileDoctype" name="fileDoctype" onchange="var idx=this.selectedIndex;var doctype=this.options[idx].value;updateForm(doctype,'+','.join([js_can_describe_doctypes, js_can_comment_doctypes, js_can_restrict_doctypes])+');">' + \
	'\n'.join(['<option value="' + doctype + '">' + \
	description + '</option>' \
	for (doctype, description) \
	in doctypes_and_desc if \
	doctype in cleaned_doctypes]) + \
	'</select>'
	elif len(cleaned_doctypes) == 1:
	doctypes_list = '<input id="fileDoctype" name="fileDoctype" type="hidden" value="%s" />' % cleaned_doctypes[0]

	# Check if we should display the list of access restrictions or if
	# it is not necessary
	restrictions_list = ""
	if len(restrictions_and_desc) > 1:
	restrictions_list = '<select id="fileRestriction" name="fileRestriction">' + \
	'\n'.join(['<option value="' + restriction + '">' + \
	description + '</option>' \
	for (restriction, description) \
	in restrictions_and_desc]) + \
	'</select>'
	restrictions_list = '''<label for="restriction">%(restriction_label)s:</label> %(restrictions_list)s <small>[<a href="" onclick="alert('%(restriction_help)s');return false;">?</a>]</small>''' % \
	{'restrictions_list': restrictions_list,
	'restriction_label': restriction_label,
	'restriction_help': _('Choose how you want to restrict access to this file.').replace("'", "\\'")}

	elif len(restrictions_and_desc) == 1:
	restrictions_list = '<select style="display:none" id="fileRestriction" name="fileRestriction"><option value="%(restriction)s">%(restriction)s</option></select>' % {'restriction': restrictions_and_desc[0][0]}
	else:
	restrictions_list = '<select style="display:none" id="fileRestriction" name="fileRestriction"></select>'

	# List the files
	body += '''
	<div id="reviseControl">
	<table class="reviseControlBrowser">'''
	i = 0
	for bibdoc in abstract_bibdocs:
	if bibdoc['list_latest_files']:
	i += 1
	body += create_file_row(bibdoc, can_delete_doctypes,
	can_rename_doctypes,
	can_revise_doctypes,
	can_describe_doctypes,
	can_comment_doctypes,
	can_keep_doctypes,
	can_add_format_to_doctypes,
	doctypes_list,
	show_links,
	can_restrict_doctypes,
	even=not (i % 2),
	ln=ln,
	form_url_params=form_url_params)
	body += '</table>'
	if len(cleaned_doctypes) > 0:
	body += '''<input type="button" onclick="%(display_revise_panel)s;updateForm('%(defaultSelectedDoctype)s', %(can_describe_doctypes)s, %(can_comment_doctypes)s, %(can_restrict_doctypes)s);return false;" value="%(add_new_file)s"/>''' % \
	{'display_revise_panel':javascript_display_revise_panel(action='add', target='', show_doctypes=True, show_keep_previous_versions=False, show_rename=can_name_new_files, show_description=True, show_comment=True, bibdocname='', description='', comment='', show_restrictions=True, restriction=len(restrictions_and_desc) > 0 and restrictions_and_desc[0][0] or '', doctypes=doctypes_list),
	'defaultSelectedDoctype': doctypes[0],
	'add_new_file': _("Add new file"),
	'can_describe_doctypes':js_can_describe_doctypes,
	'can_comment_doctypes': repr({}.fromkeys(can_comment_doctypes, '')),
	'can_restrict_doctypes': repr({}.fromkeys(can_restrict_doctypes, ''))}

	body += '</div>'

	if print_envelope:
	# We should print this only if we display for the first time
	body = '<div id="uploadFileInterface">' + body + '</div>'
	if include_headers:
	body = get_upload_file_interface_javascript(form_url_params) + \
	get_upload_file_interface_css() + \
	body

	# Display markup of the revision panel. This one is also
	# printed only at the beginning, so that it does not need to
	# be returned with each response
	body += revise_balloon % \
	{'CFG_SITE_URL': CFG_SITE_URL,
	'file_label': file_label,
	'filename_label': filename_label,
	'description_label': description_label,
	'comment_label': comment_label,
	'restrictions': restrictions_list,
	'previous_versions_help': _('You can decide to hide or not previous version(s) of this file.').replace("'", "\\'"),
	'revise_format_help': _('When you revise a file, the additional formats that you might have previously uploaded are removed, since they no longer up-to-date with the new file.').replace("'", "\\'"),
	'revise_format_warning': _('Alternative formats uploaded for current version of this file will be removed'),
	'previous_versions_label': _('Keep previous versions'),
	'cancel': _('Cancel'),
	'upload': _('Upload')}
	body += '''
	<input type="hidden" name="recid" value="%(recid)i"/>
	<input type="hidden" name="ln" value="%(ln)s"/>
	''' % \
	{'recid': recid or -1,
	'ln': ln}

	# End submission button
	if sbm_curdir:
	body += '''<br /><div style="font-size:small">
	<input type="button" class="adminbutton" name="Submit" id="applyChanges" value="%(apply_changes)s" onClick="nextStep();"></div>''' % \
	{'apply_changes': _("Apply changes")}

	# Display a link to support email in case users have problem
	# revising/adding files
	mailto_link = create_html_mailto(email=CFG_SITE_SUPPORT_EMAIL,
	subject=_("Need help revising or adding files to record %(recid)s") % \
	{'recid': recid or ''},
	body=_("""Dear Support,
	I would need help to revise or add a file to record %(recid)s.
	I have attached the new version to this email.
	Best regards"""))

	problem_revising = _('Having a problem revising a file? Send the revised version to %(mailto_link)s.') % {'mailto_link': mailto_link}
	if len(cleaned_doctypes) > 0:
	# We can add files, so change note
	problem_revising = _('Having a problem adding or revising a file? Send the new/revised version to %(mailto_link)s.') % {'mailto_link': mailto_link}

	body += '<br />'
	body += problem_revising

	if print_envelope and print_outside_form_tag:
	body = '<form method="post" action="/submit/managedocfilesasync" id="uploadFileForm">' + body + '</form>'

	return (0, body)

	def create_file_row(abstract_bibdoc, can_delete_doctypes,
	can_rename_doctypes, can_revise_doctypes,
	can_describe_doctypes, can_comment_doctypes,
	can_keep_doctypes, can_add_format_to_doctypes,
	doctypes_list, show_links, can_restrict_doctypes,
	even=False, ln=CFG_SITE_LANG, form_url_params=''):
	"""
	Creates a row in the files list representing the given abstract_bibdoc

	@param abstract_bibdoc: list of "fake" BibDocs: it is a list of dictionaries
	with keys 'list_latest_files' and 'get_docname' with
	values corresponding to what you would expect to receive
	when calling their counterpart function on a real BibDoc
	object.

	@param can_delete_doctypes: list of doctypes for which we allow users to delete
	documents

	@param can_revise_doctypes: the list of doctypes that users are
	allowed to revise.

	@param can_describe_doctypes: the list of doctypes that users are
	allowed to describe.

	@param can_comment_doctypes: the list of doctypes that users are
	allowed to comment.

	@param can_keep_doctypes: the list of doctypes for which users can
	choose to keep previous versions visible
	when revising a file (i.e. 'Keep previous
	version' checkbox).

	@param can_rename_doctypes: the list of doctypes that users are
	allowed to rename (when revising)

	@param can_add_format_to_doctypes: the list of doctypes for which users can
	add new formats

	@param show_links: if we display links to files

	@param even: if the row is even or odd on the list
	@type even: boolean

	@param ln: language
	@type ln: string

	@param form_url_params: the
	@type form_url_params: string

	@return: an HTML formatted "file" row
	@rtype: string
	"""
	_ = gettext_set_language(ln)

	# Try to retrieve "main format", to display as link for the
	# file. There is no such concept in BibDoc, but let's just try to
	# get the pdf file if it exists
	main_bibdocfile = [bibdocfile for bibdocfile in abstract_bibdoc['list_latest_files'] \
	if bibdocfile.get_format().strip('.').lower() == 'pdf']
	if len(main_bibdocfile) > 0:
	main_bibdocfile = main_bibdocfile[0]
	else:
	main_bibdocfile = abstract_bibdoc['list_latest_files'][0]

	main_bibdocfile_description = main_bibdocfile.get_description()
	if main_bibdocfile_description is None:
	main_bibdocfile_description = ''

	updated = abstract_bibdoc['updated'] # Has BibDoc been updated?

	# Main file row
	out = '<tr%s>' % (even and ' class="even"' or '')
	out += '<td class="reviseControlFileColumn">'
	if not updated and show_links:
	out += '<a target="_blank" href="' + main_bibdocfile.get_url() \
	+ '">'
	out += abstract_bibdoc['get_docname']
	if not updated and show_links:
	out += '</a>'
	if main_bibdocfile_description:
	out += ' (<em>' + main_bibdocfile_description + '</em>)'
	out += '</td>'

	(description, comment) = get_description_and_comment(abstract_bibdoc['list_latest_files'])
	restriction = abstract_bibdoc['get_status']

	# Revise link
	out += '<td class="reviseControlActionColumn">'
	if main_bibdocfile.get_type() in can_revise_doctypes or \
	'*' in can_revise_doctypes:
	out += '[<a href="" onclick="%(display_revise_panel)s;return false;">%(revise)s</a>]' % \
	{'display_revise_panel': javascript_display_revise_panel(
	action='revise',
	target=abstract_bibdoc['get_docname'],
	show_doctypes=False,
	show_keep_previous_versions=(main_bibdocfile.get_type() in can_keep_doctypes) or '*' in can_keep_doctypes,
	show_rename=(main_bibdocfile.get_type() in can_rename_doctypes) or '*' in can_rename_doctypes,
	show_description=(main_bibdocfile.get_type() in can_describe_doctypes) or '*' in can_describe_doctypes,
	show_comment=(main_bibdocfile.get_type() in can_comment_doctypes) or '*' in can_comment_doctypes,
	bibdocname=abstract_bibdoc['get_docname'],
	description=description,
	comment=comment,
	show_restrictions=(main_bibdocfile.get_type() in can_restrict_doctypes) or '*' in can_restrict_doctypes,
	restriction=restriction,
	doctypes=doctypes_list),
	'revise': _("revise")
	}

	# Delete link
	if main_bibdocfile.get_type() in can_delete_doctypes or \
	'*' in can_delete_doctypes:
	out += '''[<a href="" onclick="return askDelete('%(bibdocname)s', '%(form_url_params)s')">%(delete)s</a>]
	''' % {'bibdocname': abstract_bibdoc['get_docname'].replace("'", "\\'").replace('"', '"'),
	'delete': _("delete"),
	'form_url_params': form_url_params or ''}
	out += '''</td>'''

	# Format row
	out += '''<tr%s>
	<td class="reviseControlFormatColumn">
	<img src="%s/img/tree_branch.gif" alt="">
	''' % (even and ' class="even"' or '', CFG_SITE_URL)
	for bibdocfile in abstract_bibdoc['list_latest_files']:
	if not updated and show_links:
	out += '<a target="_blank" href="' + bibdocfile.get_url() + '">'
	out += bibdocfile.get_format().strip('.')
	if not updated and show_links:
	out += '</a>'
	out += ' '

	# Add format link
	out += '<td class="reviseControlActionColumn">'
	if main_bibdocfile.get_type() in can_add_format_to_doctypes or \
	'*' in can_add_format_to_doctypes:
	out += '[<a href="" onclick="%(display_revise_panel)s;return false;">%(add_format)s</a>]' % \
	{'display_revise_panel':javascript_display_revise_panel(
	action='addFormat',
	target=abstract_bibdoc['get_docname'],
	show_doctypes=False,
	show_keep_previous_versions=False,
	show_rename=False,
	show_description=False,
	show_comment=False,
	bibdocname='',
	description='',
	comment='',
	show_restrictions=False,
	restriction=restriction,
	doctypes=doctypes_list),
	'add_format':_("add format")}

	out += '</td></tr>'

	return out

	def build_updated_files_list(bibdocs, actions, recid):
	"""
	Parses the list of BibDocs and builds an updated version to reflect
	the changes performed by the user of the file

	It is necessary to abstract the BibDocs since user wants to
	perform action on the files that are committed only at the end of
	the session.

	@param bibdocs: the original list of bibdocs on which we want to
	build a new updated list

	@param actions: the list of actions performed by the user on the
	files, and that we want to consider to build an
	updated file list

	@param recid: the record ID to which the files belong
	"""
	abstract_bibdocs = {}
	i = 0
	for bibdoc in bibdocs:
	i += 1
	status = bibdoc.get_status()
	if status == "DELETED":
	status = ''

	abstract_bibdocs[bibdoc.get_docname()] = \
	{'list_latest_files': bibdoc.list_latest_files(),
	'get_docname': bibdoc.get_docname(),
	'updated': False,
	'get_type': bibdoc.get_type(),
	'get_status': status,
	'order': i}

	for action, bibdoc_name, file_path, rename, description, \
	comment, doctype, keep_previous_versions, \
	file_restriction in actions:
	dirname, filename, fileformat = decompose_file(file_path)
	i += 1
	if action in ["add", "revise"] and \
	os.path.exists(file_path):
	checksum = calculate_md5(file_path)
	order = i
	if action == "revise" and \
	abstract_bibdocs.has_key(bibdoc_name):
	# Keep previous values
	order = abstract_bibdocs[bibdoc_name]['order']
	doctype = abstract_bibdocs[bibdoc_name]['get_type']
	if bibdoc_name.strip() == '' and rename.strip() == '':
	bibdoc_name = os.path.extsep.join(filename.split(os.path.extsep)[:-1])
	elif rename.strip() != '' and \
	abstract_bibdocs.has_key(bibdoc_name):
	# Keep previous position
	del abstract_bibdocs[bibdoc_name]

	# First instantiate a fake BibDocMoreInfo object, without any side effect
	more_info = BibDocMoreInfo(1, cPickle.dumps({}))
	if description is not None:
	more_info.more_info['descriptions'] = {1: {fileformat:description}}
	if comment is not None:
	more_info.more_info['comments'] = {1: {fileformat:comment}}
	abstract_bibdocs[(rename or bibdoc_name)] = \
	{'list_latest_files': [BibDocFile(file_path, doctype, version=1,
	name=(rename or bibdoc_name),
	format=fileformat,
	recid=int(recid), docid=-1,
	status=file_restriction,
	checksum=checksum,
	more_info=more_info)],
	'get_docname': rename or bibdoc_name,
	'get_type': doctype,
	'updated': True,
	'get_status': file_restriction,
	'order': order}
	abstract_bibdocs[(rename or bibdoc_name)]['updated'] = True
	elif action == "revise" and not file_path:
	# revision of attributes of a file (description, name,
	# comment or restriction) but no new file.
	abstract_bibdocs[bibdoc_name]['get_docname'] = rename or bibdoc_name
	abstract_bibdocs[bibdoc_name]['get_status'] = file_restriction
	set_description_and_comment(abstract_bibdocs[bibdoc_name]['list_latest_files'],
	description, comment)
	abstract_bibdocs[bibdoc_name]['updated'] = True
	elif action == "delete":
	if abstract_bibdocs.has_key(bibdoc_name):
	del abstract_bibdocs[bibdoc_name]
	elif action == "addFormat" and \
	os.path.exists(file_path):
	checksum = calculate_md5(file_path)
	# Preserve type and status
	doctype = abstract_bibdocs[bibdoc_name]['get_type']
	file_restriction = abstract_bibdocs[bibdoc_name]['get_status']
	# First instantiate a fake BibDocMoreInfo object, without any side effect
	more_info = BibDocMoreInfo(1, cPickle.dumps({}))
	if description is not None:
	more_info.more_info['descriptions'] = {1: {fileformat:description}}
	if comment is not None:
	more_info.more_info['comments'] = {1: {fileformat:comment}}
	abstract_bibdocs[bibdoc_name]['list_latest_files'].append(\
	BibDocFile(file_path, doctype, version=1,
	name=(rename or bibdoc_name), format=fileformat,
	recid=int(recid), docid=-1, status='',
	checksum=checksum, more_info=more_info))
	abstract_bibdocs[bibdoc_name]['updated'] = True

	return abstract_bibdocs.values()

	def _read_file_revision_interface_configuration_from_disk(working_dir):
	"""
	Read the configuration of the file revision interface from disk

	@param working_dir: the path to the working directory where we can find
	the configuration file
	"""
	input_file = open(os.path.join(working_dir, 'upload_interface.config'), 'rb')
	configuration = cPickle.load(input_file)
	input_file.close()
	return configuration

	def _write_file_revision_interface_configuration_to_disk(working_dir, parameters):
	"""
	Write the configuration of the file revision interface to disk

	@param working_dir: the path to the working directory where we should
	write the configuration.

	@param parameters: the parameters to write to disk
	"""
	output = open(os.path.join(working_dir, 'upload_interface.config'), 'wb')
	cPickle.dump(parameters, output)
	output.close()

	def log_action(log_dir, action, bibdoc_name, file_path, rename,
	description, comment, doctype, keep_previous_versions,
	file_restriction):
	"""
	Logs a new action performed by user on a BibDoc file.

	The log file record one action per line, each column being split
	by '---' ('---' is escaped from values 'rename', 'description',
	'comment' and 'bibdoc_name')

	Newlines are also reserved, and are escaped from the input values
	(necessary for the 'comment' field, which is the only one allowing
	newlines from the browser)

	Each line starts with the time of the action in the following
	format: '2008-06-20 08:02:04 --> '

	@param log_dir: directory where to save the log (ie. working_dir)

	@param action: the performed action (one of 'revise', 'delete',
	'add', 'addFormat')

	@param bibdoc_name: the name of the bibdoc on which the change is
	applied

	@param file_path: the path to the file that is going to be
	integrated as bibdoc, if any (should be""
	in case of action="delete", or action="revise"
	when revising only attributes of a file)

	@param rename: the name used to display the bibdoc, instead of the
	filename (can be None for no renaming)

	@param description: a description associated with the file

	@param comment: a comment associated with the file

	@param doctype: the category in which the file is going to be
	integrated

	@param keep_previous_versions: if the previous versions of this
	file are to be hidden (0) or not (1)

	@param file_restriction: the restriction applied to the
	file. Empty string if no restriction
	"""
	log_file = os.path.join(log_dir, 'bibdocactions.log')
	try:
	file_desc = open(log_file, "a+")
	# We must escape new lines from comments in some way:
	comment = str(comment).replace('\\', '\\\\').replace('\r\n', '\\n\\r')
	msg = action + '---' + \
	bibdoc_name.replace('---', '___') + '---' + \
	file_path + '---' + \
	str(rename).replace('---', '___') + '---' + \
	str(description).replace('---', '___') + '---' + \
	comment.replace('---', '___') + '---' + \
	doctype + '---' + \
	str(int(keep_previous_versions)) + '---' + \
	file_restriction + '\n'
	file_desc.write("%s --> %s" %(time.strftime("%Y-%m-%d %H:%M:%S"), msg))
	file_desc.close()
	except Exception ,e:
	raise e

	def read_actions_log(log_dir):
	"""
	Reads the logs of action to be performed on files

	See log_action(..) for more information about the structure of the
	log file.

	@param log_dir: the path to the directory from which to read the
	log file
	@type log_dir: string
	"""
	actions = []
	log_file = os.path.join(log_dir, 'bibdocactions.log')
	try:
	file_desc = open(log_file, "r")
	for line in file_desc.readlines():
	(timestamp, action) = line.split(' --> ', 1)
	try:
	(action, bibdoc_name, file_path, rename, description,
	comment, doctype, keep_previous_versions,
	file_restriction) = action.rstrip('\n').split('---')
	except ValueError, e:
	# Malformed action log
	pass

	# Clean newline-escaped comment:
	comment = comment.replace('\\n\\r', '\r\n').replace('\\\\', '\\')

	# Perform some checking
	if action not in CFG_ALLOWED_ACTIONS:
	# Malformed action log
	pass

	try:
	keep_previous_versions = int(keep_previous_versions)
	except:
	# Malformed action log
	keep_previous_versions = 1
	pass

	actions.append((action, bibdoc_name, file_path, rename, \
	description, comment, doctype,
	keep_previous_versions, file_restriction))
	file_desc.close()
	except:
	pass

	return actions

	def javascript_display_revise_panel(action, target, show_doctypes, show_keep_previous_versions, show_rename, show_description, show_comment, bibdocname, description, comment, show_restrictions, restriction, doctypes):
	"""
	Returns a correctly encoded call to the javascript function to
	display the revision panel.
	"""
	def escape_js_string_param(input):
	"Escape string parameter to be used in Javascript function"
	return input.replace('\\', '\\\\').replace('\r', '\\r').replace('\n', '\\n').replace("'", "\\'").replace('"', '"')

	return '''display_revise_panel(this, '%(action)s', '%(target)s', %(showDoctypes)s, %(showKeepPreviousVersions)s, %(showRename)s, %(showDescription)s, %(showComment)s, '%(bibdocname)s', '%(description)s', '%(comment)s', %(showRestrictions)s, '%(restriction)s', '%(doctypes)s')''' % \
	{'action': action,
	'showDoctypes': show_doctypes and 'true' or 'false',
	'target': escape_js_string_param(target),
	'bibdocname': escape_js_string_param(bibdocname),
	'showRename': show_rename and 'true' or 'false',
	'showKeepPreviousVersions': show_keep_previous_versions and 'true' or 'false',
	'showComment': show_comment and 'true' or 'false',
	'showDescription': show_description and 'true' or 'false',
	'description': description and escape_js_string_param(description) or '',
	'comment': comment and escape_js_string_param(comment) or '',
	'showRestrictions': show_restrictions and 'true' or 'false',
	'restriction': escape_js_string_param(restriction),
	'doctypes': escape_js_string_param(doctypes)}

	def get_uploaded_files_for_docname(log_dir, docname):
	"""
	Given a docname, returns the paths to the files uploaded for this
	revision session.

	@param log_dir: the path to the directory that should contain the
	uploaded files.

	@param docname: the name of the bibdoc for which we want to
	retrieve files.
	"""
	return [file_path for action, bibdoc_name, file_path, rename, \
	description, comment, doctype, keep_previous_versions , \
	file_restriction in read_actions_log(log_dir) \
	if bibdoc_name == docname and os.path.exists(file_path)]

	def get_bibdoc_for_docname(docname, abstract_bibdocs):
	"""
	Given a docname, returns the corresponding bibdoc from the
	'abstract' bibdocs.

	Return None if not found

	@param docname: the name of the bibdoc we want to retrieve

	@param abstract_bibdocs: the list of bibdocs from which we want to
	retrieve the bibdoc
	"""
	bibdocs = [bibdoc for bibdoc in abstract_bibdocs \
	if bibdoc['get_docname'] == docname]
	if len(bibdocs) > 0:
	return bibdocs[0]
	else:
	return None

	def get_extensions_for_docname(docname, abstract_bibdocs):
	"""
	Returns the list of extensions that exists for given bibdoc
	name in the given 'abstract' bibdocs.

	@param docname: the name of the bibdoc for wich we want to
	retrieve the available extensions

	@param abstract_bibdocs: the list of bibdocs from which we want to
	retrieve the bibdoc extensions
	"""

	bibdocfiles = [bibdoc['list_latest_files'] for bibdoc \
	in abstract_bibdocs \
	if bibdoc['get_docname'] == docname]
	if len(bibdocfiles) > 0:
	# There should always be at most 1 matching docname, or 0 if
	# it is a new file
	return [bibdocfile.get_format() for bibdocfile \
	in bibdocfiles[0]]
	return []

	def get_description_and_comment(bibdocfiles):
	"""
	Returns the first description and comment as tuple (description,
	comment) found in the given list of bibdocfile

	description and/or comment can be None.

	This function is needed since we do consider that there is one
	comment/description per bibdoc, and not per bibdocfile as APIs
	state.

	@param bibdocfiles: the list of files of a given bibdoc for which
	we want to extract the description and comment.
	"""
	description = None
	comment = None
	all_descriptions = [bibdocfile.get_description() for bibdocfile \
	in bibdocfiles
	if bibdocfile.get_description() not in ['', None]]
	if len(all_descriptions) > 0:
	description = all_descriptions[0]

	all_comments = [bibdocfile.get_comment() for bibdocfile \
	in bibdocfiles
	if bibdocfile.get_comment() not in ['', None]]
	if len(all_comments) > 0:
	comment = all_comments[0]

	return (description, comment)

	def set_description_and_comment(abstract_bibdocfiles, description, comment):
	"""
	Set the description and comment to the given (abstract)
	bibdocfiles.

	description and/or comment can be None.

	This function is needed since we do consider that there is one
	comment/description per bibdoc, and not per bibdocfile as APIs
	state.

	@param abstract_bibdocfiles: the list of 'abstract' files of a
	given bibdoc for which we want to set the
	description and comment.

	@param description: the new description
	@param comment: the new comment
	"""
	for bibdocfile in abstract_bibdocfiles:
	bibdocfile.description = description
	bibdocfile.comment = comment

	def delete_file(working_dir, file_path):
	"""
	Deletes a file at given path from the file.
	In fact, we just move it to working_dir/files/trash

	@param working_dir: the path to the working directory
	@param file_path: the path to the file to delete
	"""
	if os.path.exists(file_path):
	filename = os.path.split(file_path)[1]
	move_to = os.path.join(working_dir, 'files', 'trash',
	filename +'_' + str(time.time()))
	os.renames(file_path, move_to)

	def wash_form_parameters(form, abstract_bibdocs, can_keep_doctypes,
	keep_default, can_describe_doctypes,
	can_comment_doctypes, can_rename_doctypes,
	can_name_new_files, can_restrict_doctypes,
	doctypes_to_default_filename, working_dir):
	"""
	Washes the (user-defined) form parameters, taking into account the
	current state of the files and the admin defaults.

	@param form: the form of the function

	@param abstract_bibdocs: a representation of the current state of
	the files, as returned by
	build_updated_file_list(..)

	@param can_keep_doctypes: the list of doctypes for which we allow
	users to choose to keep or not the
	previous versions when revising.
	@type can_keep_doctypes: list

	@param keep_default: the admin-defined default for when users
	cannot choose to keep or not previous version
	of a revised file
	@type keep_default: boolean

	@param can_describe_doctypes: the list of doctypes for which we
	let users define descriptions.
	@type can_describe_doctypes: list

	@param can_comment_doctypes: the list of doctypes for which we let
	users define comments.
	@type can_comment_doctypes: list

	@param can_rename_doctypes: the list of doctypes for which we let
	users rename bibdoc when revising.
	@type can_rename_doctypes: list

	@param can_name_new_files: if we let users choose a name when
	adding new files.
	@type can_name_new_files: boolean

	@param can_restrict_doctypes: the list of doctypes for which we
	let users define access
	restrictions.
	@type can_restrict_doctypes: list

	@param doctypes_to_default_filename: mapping from doctype to
	admin-chosen name for
	uploaded file.
	@type doctypes_to_default_filename: dict

	@param working_dir: the path to the current working directory
	@type working_dir: string

	@return: tuple (file_action, file_target, file_target_doctype,
	keep_previous_files, file_description, file_comment,
	file_rename, file_doctype, file_restriction) where::

	file_action: str the performed action ('add',
	'revise','addFormat' or 'delete')

	file_target: str the bibdocname of the file on which the
	action is performed (empty string when
	file_action=='add')

	file_target_doctype: str the doctype of the file we will
	work on. Eg: ('main',
	'additional'). Empty string with
	file_action=='add'.

	keep_previous_files: bool if we keep the previous version of
	the file or not. Only useful when
	revising files.

	file_description: str the user-defined description to apply
	to the file. Empty string when no
	description defined or when not applicable

	file_comment: str the user-defined comment to apply to the
	file. Empty string when no comment defined or
	when not applicable

	file_rename: str the new name chosen by user for the
	bibdoc. Empty string when not defined or when not
	applicable.

	file_doctype: str the user-chosen doctype for the bibdoc
	when file_action=='add', or the current doctype
	of the file_target in other cases (doctype must
	be preserved).

	file_restriction: str the user-selected restriction for the
	file. Emptry string if not defined or when
	not applicable.

	file_name: str the original name of the uploaded file. None
	if no file uploaded

	file_path: str the full path to the file

	@rtype: tuple(string, string, string, boolean, string, string,
	string, string, string, string, string)
	"""
	# Action performed ...
	if form.has_key("fileAction") and \
	form['fileAction'] in CFG_ALLOWED_ACTIONS:
	file_action = form['fileAction'] # "add", "revise",
	# "addFormat" or "delete"
	else:
	file_action = ""

	# ... on file ...
	if form.has_key("fileTarget"):
	file_target = form['fileTarget'] # contains bibdocname
	# Also remember its doctype to make sure we do valid actions
	# on it
	corresponding_bibdoc = get_bibdoc_for_docname(file_target,
	abstract_bibdocs)
	if corresponding_bibdoc is not None:
	file_target_doctype = corresponding_bibdoc['get_type']
	else:
	file_target_doctype = ""
	else:
	file_target = ""
	file_target_doctype = ""

	# ... with doctype?
	# Only useful when adding file: otherwise fileTarget doctype is
	# preserved
	file_doctype = file_target_doctype
	if form.has_key("fileDoctype") and \
	file_action == 'add':
	file_doctype = form['fileDoctype']

	# ... keeping previous version? ...
	if file_target_doctype != '' and \
	not form.has_key("keepPreviousFiles"):
	# no corresponding key. Two possibilities:
	if file_target_doctype in can_keep_doctypes or \
	'*' in can_keep_doctypes:
	# User decided no to keep
	keep_previous_files = 0
	else:
	# No choice for user. Use default admin has chosen
	keep_previous_files = keep_default
	else:
	# Checkbox seems to be checked ...
	if file_target_doctype in can_keep_doctypes or \
	'*' in can_keep_doctypes:
	# ...and this is allowed
	keep_previous_files = 1
	else:
	# ...but this is not allowed
	keep_previous_files = keep_default

	# ... and decription? ...
	if form.has_key("description") and \
	(((file_action == 'revise' and \
	(file_target_doctype in can_describe_doctypes)) or \
	(file_action == 'add' and \
	(file_doctype in can_describe_doctypes))) \
	or '*' in can_describe_doctypes):
	file_description = form['description']
	else:
	file_description = ''

	# ... and comment? ...
	if form.has_key("comment") and \
	(((file_action == 'revise' and \
	(file_target_doctype in can_comment_doctypes)) or \
	(file_action == 'add' and \
	(file_doctype in can_comment_doctypes))) \
	or '*' in can_comment_doctypes):
	file_comment = form['comment']
	else:
	file_comment = ''

	# ... and rename to ? ...
	if form.has_key("rename") and \
	((file_action == "revise" and \
	((file_target_doctype in can_rename_doctypes) or \
	'*' in can_rename_doctypes)) or \
	(file_action == "add" and \
	can_name_new_files)):
	file_rename = form['rename'] # contains new bibdocname if applicable
	elif file_action == "add" and \
	doctypes_to_default_filename.has_key(file_doctype):
	# Admin-chosen name. Ensure it is unique by appending a suffix
	file_rename = doctypes_to_default_filename[file_doctype]
	file_counter = 2
	while get_bibdoc_for_docname(file_rename, abstract_bibdocs):
	if file_counter == 2:
	file_rename += '-2'
	else:
	file_rename = file_rename[:-len(str(file_counter))] + \
	str(file_counter)
	file_counter += 1
	else:
	file_rename = ''

	# ... and file restriction ? ...
	file_restriction = ''
	if form.has_key("fileRestriction"):
	# We cannot clean that value as it could be a restriction
	# declared in another submission. We keep this value.
	file_restriction = form['fileRestriction']

	# ... and the file itself ? ...
	if form.has_key('myfile') and \
	hasattr(form['myfile'], "filename") and \
	form['myfile'].filename:
	dir_to_open = os.path.join(working_dir, 'files', 'myfile')
	if not os.path.exists(dir_to_open):
	try:
	os.makedirs(dir_to_open)
	except:
	pass
	# Shall we continue?
	if os.path.exists(dir_to_open):
	form_field = form['myfile']
	file_name = form_field.filename
	form_file = form_field.file
	## Before saving the file to disk, wash the filename (in particular
	## washing away UNIX and Windows (e.g. DFS) paths):
	file_name = os.path.basename(file_name.split('\\')[-1])
	file_name = file_name.strip()
	if file_name != "":
	# This may be dangerous if the file size is bigger than
	# the available memory
	file_path = os.path.join(dir_to_open, file_name)
	if not os.path.exists(file_path):
	# If file already exists, it means that it was
	# handled by WebSubmit
	fp = file(file_path, "wb")
	chunk = form_file.read(10240)
	while chunk:
	fp.write(chunk)
	chunk = form_file.read(10240)
	fp.close()
	fp = open(os.path.join(working_dir, "lastuploadedfile"), "w")
	fp.write(file_name)
	fp.close()
	fp = open(os.path.join(working_dir, 'myfile'), "w")
	fp.write(file_name)
	fp.close()
	else:
	file_name = None
	file_path = None

	return (file_action, file_target, file_target_doctype,
	keep_previous_files, file_description, file_comment,
	file_rename, file_doctype, file_restriction, file_name,
	file_path)


	def move_uploaded_files_to_storage(working_dir, recid, icon_sizes,
	create_icon_doctypes,
	force_file_revision):
	"""
	Apply the modifications on files (add/remove/revise etc.) made by
	users with one of the compatible interfaces (WebSubmit function
	`Create_Upload_Files_Interface.py'; WebSubmit element or WebSubmit
	File management interface using function
	`create_file_upload_interface').

	This function needs a "working directory" (working_dir) that contains a
	bibdocactions.log file with the list of actions to perform.

	@param working_dir: a path to the working directory containing actions to perform and files to attach
	@type working_dir: string
	@param recid: the recid to modify
	@type recid: int
	@param icon_sizes: the sizes of icons to create, as understood by
	the websubmit icon creation tool
	@type icon_sizes: list(string)
	@param create_icon_doctypes: a list of doctype for which we want
	to create icons
	@type create_icon_doctypes: list(string)
	@param force_file_revision: when revising attributes of a file
	(comment, description) without
	uploading a new file, force a revision
	of the current version (so that old
	comment, description, etc. is kept
	or not)
	@type force_file_revision: bool
	"""
	# We need to remember of some actions that cannot be performed,
	# because files have been deleted or moved after a renaming.
	# Those pending action must be applied when revising the bibdoc
	# with a file that exists (that means that the bibdoc has not been
	# deleted nor renamed by a later action)
	pending_bibdocs = {}

	performed_actions = read_actions_log(working_dir)
	for action, bibdoc_name, file_path, rename, description, \
	comment, doctype, keep_previous_versions, \
	file_restriction in performed_actions:

	# FIXME: get this out of the loop once changes to bibrecdocs
	# are immediately visible. For the moment, reload the
	# structure from scratch at each step
	bibrecdocs = BibRecDocs(recid)

	if action == 'add':
	add(file_path, bibdoc_name, rename, doctype, description,
	comment, file_restriction, recid, working_dir, icon_sizes,
	create_icon_doctypes, pending_bibdocs, bibrecdocs)

	elif action == 'addFormat':
	add_format(file_path, bibdoc_name, recid, doctype, working_dir,
	icon_sizes, create_icon_doctypes,
	pending_bibdocs, bibrecdocs)

	elif action == 'revise':
	revise(file_path, bibdoc_name, rename, doctype,
	description, comment, file_restriction, icon_sizes,
	create_icon_doctypes, keep_previous_versions,
	recid, working_dir, pending_bibdocs,
	bibrecdocs, force_file_revision)

	elif action == 'delete':
	delete(bibdoc_name, recid, working_dir, pending_bibdocs,
	bibrecdocs)

	# Update the MARC
	bibdocfile_bin = os.path.join(CFG_BINDIR, 'bibdocfile --yes-i-know')
	run_shell_command(bibdocfile_bin + " --fix-marc --recid=%s", (str(recid),))

	# Delete the HB BibFormat cache in the DB, so that the fulltext
	# links do not point to possible dead files
	run_sql("DELETE from bibfmt WHERE format='HB' AND id_bibrec=%s", (recid,))

	def add(file_path, bibdoc_name, rename, doctype, description, comment,
	file_restriction, recid, working_dir, icon_sizes, create_icon_doctypes,
	pending_bibdocs, bibrecdocs):
	"""
	Adds the file using bibdocfile CLI
	"""
	try:
	if os.path.exists(file_path):
	# Add file
	bibdoc = bibrecdocs.add_new_file(file_path,
	doctype,
	rename or bibdoc_name,
	never_fail=True)
	_do_log(working_dir, 'Added ' + bibdoc.get_docname() + ': ' + \
	file_path)

	# Add icon
	iconpath = ''
	has_added_default_icon_subformat_p = False
	for icon_size in icon_sizes:
	if doctype in create_icon_doctypes or \
	'*' in create_icon_doctypes:
	iconpath = _create_icon(file_path, icon_size)
	if iconpath is not None:
	try:
	if not has_added_default_icon_subformat_p:
	bibdoc.add_icon(iconpath)
	has_added_default_icon_subformat_p = True
	else:
	icon_suffix = icon_size.replace('>', '').replace('<', '').replace('^', '').replace('!', '')
	bibdoc.add_icon(iconpath, subformat=CFG_WEBSUBMIT_DEFAULT_ICON_SUBFORMAT + "-" + icon_suffix)
	_do_log(working_dir, 'Added icon to ' + \
	bibdoc.get_docname() + ': ' + iconpath)
	except InvenioWebSubmitFileError, e:
	# Most probably icon already existed.
	pass

	# Add description
	if description:
	bibdocfiles = bibdoc.list_latest_files()
	for bibdocfile in bibdocfiles:
	bibdoc.set_description(description,
	bibdocfile.get_format())
	_do_log(working_dir, 'Described ' + \
	bibdoc.get_docname() + ': ' + description)

	# Add comment
	if comment:
	bibdocfiles = bibdoc.list_latest_files()
	for bibdocfile in bibdocfiles:
	bibdoc.set_comment(comment,
	bibdocfile.get_format())
	_do_log(working_dir, 'Commented ' + \
	bibdoc.get_docname() + ': ' + comment)

	# Set restriction
	bibdoc.set_status(file_restriction)
	_do_log(working_dir, 'Set restriction of ' + \
	bibdoc.get_docname() + ': ' + \
	file_restriction or '(no restriction)')

	else:
	# File has been later renamed or deleted.
	# Remember to add it later if file is found (ie
	# it was renamed)
	pending_bibdocs[bibdoc_name] = (doctype, comment, description, [])

	except InvenioWebSubmitFileError, e:
	# Format already existed. How come? We should
	# have checked this in Create_Upload_Files_Interface.py
	register_exception(prefix='Move_Uploaded_Files_to_Storage ' \
	'tried to add already existing file %s ' \
	'with name %s to record %i.' % \
	(file_path, bibdoc_name, recid),
	alert_admin=True)

	def add_format(file_path, bibdoc_name, recid, doctype, working_dir,
	icon_sizes, create_icon_doctypes, pending_bibdocs,
	bibrecdocs):
	"""
	Adds a new format to a bibdoc using bibdocfile CLI
	"""
	try:
	if os.path.exists(file_path):

	# We must retrieve previous description and comment as
	# adding a file using the APIs reset these values
	prev_desc, prev_comment = None, None
	if bibrecdocs.has_docname_p(bibdoc_name):
	(prev_desc, prev_comment) = \
	get_description_and_comment(bibrecdocs.get_bibdoc(bibdoc_name).list_latest_files())

	# Add file
	bibdoc = bibrecdocs.add_new_format(file_path,
	bibdoc_name,
	prev_desc,
	prev_comment)
	_do_log(working_dir, 'Added new format to ' + \
	bibdoc.get_docname() + ': ' + file_path)

	# Add icons
	has_added_default_icon_subformat_p = False
	for icon_size in icon_sizes:
	iconpath = ''
	if doctype in create_icon_doctypes or \
	'*' in create_icon_doctypes:
	iconpath = _create_icon(file_path, icon_size)
	if iconpath is not None:
	try:
	if not has_added_default_icon_subformat_p:
	bibdoc.add_icon(iconpath)
	has_added_default_icon_subformat_p = True
	else:
	# We have already added the "default" icon subformat
	icon_suffix = icon_size.replace('>', '').replace('<', '').replace('^', '').replace('!', '')

	bibdoc.add_icon(iconpath, subformat=CFG_WEBSUBMIT_DEFAULT_ICON_SUBFORMAT + "-" + icon_suffix)
	_do_log(working_dir, 'Added icon to ' + \
	bibdoc.get_docname() + ': ' + iconpath)
	except InvenioWebSubmitFileError, e:
	# Most probably icon already existed.
	pass
	else:
	# File has been later renamed or deleted.
	# Remember to add it later if file is found
	if pending_bibdocs.has_key(bibdoc_name):
	pending_bibdocs[bibdoc_name][3].append(file_path)
	# else: we previously added a file by mistake. Do
	# not care, it will be deleted
	except InvenioWebSubmitFileError, e:
	# Format already existed. How come? We should
	# have checked this in Create_Upload_Files_Interface.py
	register_exception(prefix='Move_Uploaded_Files_to_Storage ' \
	'tried to add already existing format %s ' \
	'named %s in record %i.' % \
	(file_path, bibdoc_name, recid),
	alert_admin=True)

	def revise(file_path, bibdoc_name, rename, doctype, description,
	comment, file_restriction, icon_sizes, create_icon_doctypes,
	keep_previous_versions, recid, working_dir, pending_bibdocs,
	bibrecdocs, force_file_revision):
	"""
	Revises the given bibdoc with a new file
	"""
	try:
	if os.path.exists(file_path) or not file_path:

	# Perform pending actions
	if pending_bibdocs.has_key(bibdoc_name):
	# We have some pending actions to apply before
	# going further.
	if description == '':
	# Last revision did not include a description.
	# Use the one of the pending actions
	description = pending_bibdocs[bibdoc_name][2]
	if comment == '':
	# Last revision did not include a comment.
	# Use the one of the pending actions
	comment = pending_bibdocs[bibdoc_name][1]
	original_bibdoc_name = pending_bibdocs[bibdoc_name][0]
	if not bibrecdocs.has_docname_p(original_bibdoc_name) and file_path:
	# the bibdoc did not originaly exist, so it
	# must be added first
	bibdoc = bibrecdocs.add_new_file(file_path,
	pending_bibdocs[bibdoc_name][0],
	bibdoc_name,
	never_fail=True)
	_do_log(working_dir, 'Added ' + bibdoc.get_docname() + ': ' + \
	file_path)

	# Set restriction
	bibdoc.set_status(file_restriction)
	_do_log(working_dir, 'Set restriction of ' + \
	bibdoc.get_docname() + ': ' + \
	file_restriction or '(no restriction)')

	# We must retrieve previous description and comment as
	# revising a file using the APIs reset these values
	prev_desc, prev_comment = None, None
	if bibrecdocs.has_docname_p(bibdoc_name):
	(prev_desc, prev_comment) = \
	get_description_and_comment(bibrecdocs.get_bibdoc(bibdoc_name).list_latest_files())

	# Do we have additional formats?
	for additional_format in pending_bibdocs[bibdoc_name][3]:
	if os.path.exists(additional_format):
	bibdoc.add_file_new_format(additional_format,
	description=bibdoc.get_description(),
	comment=bibdoc.get_comment())
	_do_log(working_dir, 'Added new format to' + \
	bibdoc.get_docname() + ': ' + file_path)

	# All pending modification have been applied,
	# so delete
	del pending_bibdocs[bibdoc_name]

	# We must retrieve previous description and comment as
	# revising a file using the APIs reset these values
	prev_desc, prev_comment = None, None
	if bibrecdocs.has_docname_p(bibdoc_name):
	(prev_desc, prev_comment) = \
	get_description_and_comment(bibrecdocs.get_bibdoc(bibdoc_name).list_latest_files())

	if keep_previous_versions and file_path:
	# Standard procedure, keep previous version
	bibdoc = bibrecdocs.add_new_version(file_path,
	bibdoc_name,
	prev_desc,
	prev_comment)
	_do_log(working_dir, 'Revised ' + bibdoc.get_docname() + \
	' with : ' + file_path)

	elif file_path:
	# Soft-delete previous versions, and add new file
	# (we need to get the doctype before deleting)
	if bibrecdocs.has_docname_p(bibdoc_name):
	# Delete only if bibdoc originally
	# existed
	bibrecdocs.delete_bibdoc(bibdoc_name)
	_do_log(working_dir, 'Deleted ' + bibdoc_name)
	try:
	bibdoc = bibrecdocs.add_new_file(file_path,
	doctype,
	bibdoc_name,
	never_fail=True,
	description=prev_desc,
	comment=prev_comment)
	_do_log(working_dir, 'Added ' + bibdoc.get_docname() + ': ' + \
	file_path)

	except InvenioWebSubmitFileError, e:
	_do_log(working_dir, str(e))
	register_exception(prefix='Move_Uploaded_Files_to_Storage ' \
	'tried to revise a file %s ' \
	'named %s in record %i.' % \
	(file_path, bibdoc_name, recid),
	alert_admin=True)
	else:
	# User just wanted to change attribute of the file,
	# not the file itself
	bibdoc = bibrecdocs.get_bibdoc(bibdoc_name)
	(prev_desc, prev_comment) = \
	get_description_and_comment(bibdoc.list_latest_files())
	if prev_desc is None:
	prev_desc = ""
	if prev_comment is None:
	prev_comment = ""
	if force_file_revision and \
	(description != prev_desc or comment != prev_comment):
	# FIXME: If we are going to create a new version,
	# then we should honour the keep_previous_versions
	# parameter (soft-delete, then add bibdoc, etc)
	# But it is a bit complex right now...

	# Trick: we revert to current version, which
	# creates a revision of the BibDoc
	bibdoc.revert(bibdoc.get_latest_version())
	bibdoc = bibrecdocs.get_bibdoc(bibdoc_name)

	# Rename
	if rename and rename != bibdoc_name:
	bibdoc.change_name(rename)
	_do_log(working_dir, 'renamed ' + bibdoc_name +' to '+ rename)

	# Add icons
	if file_path:
	has_added_default_icon_subformat_p = False
	for icon_size in icon_sizes:
	iconpath = ''
	if doctype in create_icon_doctypes or \
	'*' in create_icon_doctypes:
	iconpath = _create_icon(file_path, icon_size)
	if iconpath is not None:
	try:
	if not has_added_default_icon_subformat_p:
	bibdoc.add_icon(iconpath)
	has_added_default_icon_subformat_p = True
	else:
	# We have already added the "default" icon subformat
	icon_suffix = icon_size.replace('>', '').replace('<', '').replace('^', '').replace('!', '')
	bibdoc.add_icon(iconpath, subformat=CFG_WEBSUBMIT_DEFAULT_ICON_SUBFORMAT + "-" + icon_suffix)
	_do_log(working_dir, 'Added icon to ' + \
	bibdoc.get_docname() + ': ' + iconpath)
	except InvenioWebSubmitFileError, e:
	# Most probably icon already existed.
	pass

	# Description
	if description:
	bibdocfiles = bibdoc.list_latest_files()
	for bibdocfile in bibdocfiles:
	bibdoc.set_description(description,
	bibdocfile.get_format())
	_do_log(working_dir, 'Described ' + \
	bibdoc.get_docname() + ': ' + description)
	# Comment
	if comment:
	bibdocfiles = bibdoc.list_latest_files()
	for bibdocfile in bibdocfiles:
	bibdoc.set_comment(comment,
	bibdocfile.get_format())
	_do_log(working_dir, 'Commented ' + \
	bibdoc.get_docname() + ': ' + comment)

	# Set restriction
	bibdoc.set_status(file_restriction)
	_do_log(working_dir, 'Set restriction of ' + \
	bibdoc.get_docname() + ': ' + \
	file_restriction or '(no restriction)')
	else:
	# File has been later renamed or deleted.
	# Remember it
	if rename and rename != bibdoc_name:
	pending_bibdocs[rename] = pending_bibdocs[bibdoc_name]

	except InvenioWebSubmitFileError, e:
	# Format already existed. How come? We should
	# have checked this in Create_Upload_Files_Interface.py
	register_exception(prefix='Move_Uploaded_Files_to_Storage ' \
	'tried to revise a file %s ' \
	'named %s in record %i.' % \
	(file_path, bibdoc_name, recid),
	alert_admin=True)

	def delete(bibdoc_name, recid, working_dir, pending_bibdocs,
	bibrecdocs):
	"""
	Deletes the given bibdoc
	"""
	try:
	if bibrecdocs.has_docname_p(bibdoc_name):
	bibrecdocs.delete_bibdoc(bibdoc_name)
	_do_log(working_dir, 'Deleted ' + bibdoc_name)

	if pending_bibdocs.has_key(bibdoc_name):
	del pending_bibdocs[bibdoc_name]

	except InvenioWebSubmitFileError, e:
	# Mmh most probably we deleted two files at the same
	# second. Sleep 1 second and retry... This might go
	# away one bibdoc improves its way to delete files
	try:
	time.sleep(1)
	bibrecdocs.delete_bibdoc(bibdoc_name)
	_do_log(working_dir, 'Deleted ' + bibdoc_name)
	if pending_bibdocs.has_key(bibdoc_name):
	del pending_bibdocs[bibdoc_name]
	except InvenioWebSubmitFileError, e:
	_do_log(working_dir, str(e))
	_do_log(working_dir, repr(bibrecdocs.list_bibdocs()))
	register_exception(prefix='Move_Uploaded_Files_to_Storage ' \
	'tried to delete a file' \
	'named %s in record %i.' % \
	(bibdoc_name, recid),
	alert_admin=True)

	def _do_log(log_dir, msg):
	"""
	Log what we have done, in case something went wrong.
	Nice to compare with bibdocactions.log

	Should be removed when the development is over.

	@param log_dir: the path to the working directory
	@type log_dir: string

	@param msg: the message to log
	@type msg: string
	"""
	log_file = os.path.join(log_dir, 'performed_actions.log')
	file_desc = open(log_file, "a+")
	file_desc.write("%s --> %s\n" %(time.strftime("%Y-%m-%d %H:%M:%S"), msg))
	file_desc.close()

	def _create_icon(file_path, icon_size, format='gif', verbosity=9):
	"""
	Creates icon of given file.

	Returns path to the icon. If creation fails, return None, and
	register exception (send email to admin).


	@param file_path: full path to icon
	@type file_path: string

	@param icon_size: the scaling information to be used for the
	creation of the new icon.
	@type icon_size: int

	@param verbosity: the verbosity level under which the program
	is to run;
	@type verbosity: int
	"""
	icon_path = None
	try:
	filename = os.path.splitext(os.path.basename(file_path))[0]
	(icon_dir, icon_name) = create_icon(
	{'input-file':file_path,
	'icon-name': "icon-%s" % filename,
	'multipage-icon': False,
	'multipage-icon-delay': 0,
	'icon-scale': icon_size,
	'icon-file-format': format,
	'verbosity': verbosity})
	icon_path = icon_dir + os.sep + icon_name
	except InvenioWebSubmitIconCreatorError, e:
	register_exception(prefix='Icon for file %s could not be created: %s' % \
	(file_path, str(e)),
	alert_admin=False)
	return icon_path

	def get_upload_file_interface_javascript(form_url_params):
	"""
	Returns the Javascript code necessary to run the upload file
	interface.
	"""
	javascript = '''
	<script type="text/javascript" src="/js/jquery.min.js"></script>
	<script type="text/javascript" src="/js/jquery.form.js"></script>
	<script type="text/javascript">
	<!--
	'''
	if form_url_params:
	javascript += '''
	// prepare the form when the DOM is ready
	$(document).ready(function() {
	var options = {
	target: '#uploadFileInterface', // target element(s) to be updated with server response
	success: showResponse, // post-submit callback
	url: '/submit/managedocfilesasync%(form_url_params)s' // override for form's 'action' attribute
	};

	// bind form using 'ajaxForm'
	$('form:has(#balloonReviseFileInput)').ajaxForm(options);

	});

	// post-submit callback
	function showResponse(responseText, statusText) {
	hide_revise_panel();
	}
	''' % {'form_url_params': form_url_params} #'

	javascript += '''
	/* Record position of the last clicked link that triggered the display
	* of the revise panel
	*/
	var last_clicked_link = null;

	function display_revise_panel(link, action, target, showDoctypes, showKeepPreviousVersions, showRename, showDescription, showComment, bibdocname, description, comment, showRestrictions, restriction, doctypes){
	var balloon = document.getElementById("balloon");
	var file_input_block = document.getElementById("balloonReviseFileInputBlock");
	var doctype = document.getElementById("fileDoctypesRow");
	var warningFormats = document.getElementById("warningFormats");
	var keepPreviousVersions = document.getElementById("keepPreviousVersions");
	var renameBox = document.getElementById("renameBox");
	var descriptionBox = document.getElementById("descriptionBox");
	var commentBox = document.getElementById("commentBox");
	var restrictionBox = document.getElementById("restrictionBox");
	var apply_button = document.getElementById("applyChanges");
	var mainForm = getMainForm();
	last_clicked_link = link;
	var pos;

	/* Show/hide parts of the form */
	if (showDoctypes) {
	doctype.style.display = ''
	} else {
	doctype.style.display = 'none'
	}
	if (action == 'revise' && showKeepPreviousVersions == true){
	warningFormats.style.display = ''
	} else {
	warningFormats.style.display = 'none'
	}
	if ((action == 'revise' \|\| action == 'add') && showRename == true){
	renameBox.style.display = ''
	} else {
	renameBox.style.display = 'none'
	}
	if ((action == 'revise' \|\| action == 'add') && showDescription == true){
	descriptionBox.style.display = ''
	} else {
	descriptionBox.style.display = 'none'
	}
	if ((action == 'revise' \|\| action == 'add') && showComment == true){
	commentBox.style.display = ''
	} else {
	commentBox.style.display = 'none'
	}
	if ((action == 'revise' \|\| action == 'add') && showRestrictions == true){
	restrictionBox.style.display = ''
	} else {
	restrictionBox.style.display = 'none'
	}
	if (action == 'revise' && showKeepPreviousVersions == true) {
	keepPreviousVersions.style.display = ''
	} else {
	keepPreviousVersions.style.display = 'none'
	}
	if (action == 'add') {
	updateForm();
	}
	/* Reset values */
	file_input_block.innerHTML = file_input_block.innerHTML; // Trick to reset input field
	doctype.innerHTML = doctypes;
	mainForm.balloonReviseFileKeep.checked = true;
	mainForm.rename.value = bibdocname;
	mainForm.comment.value = comment;
	mainForm.description.value = description;
	var fileRestrictionFound = false;
	for (var i=0; i < mainForm.fileRestriction.length; i++) {
	if (mainForm.fileRestriction[i].value == restriction) {
	mainForm.fileRestriction.selectedIndex = i;
	fileRestrictionFound = true;
	}
	}
	if (!fileRestrictionFound) {
	var restrictionItem = new Option(restriction, restriction);
	mainForm.fileRestriction.appendChild(restrictionItem);
	var lastIndex = mainForm.fileRestriction.length - 1;
	mainForm.fileRestriction.selectedIndex = lastIndex;
	}

	/* Display and move to correct position*/
	pos = findPosition(link)
	balloon.style.display = '';
	balloon.style.position="absolute";
	balloon.style.left = pos[0] + link.offsetWidth +"px";
	balloon.style.top = pos[1] - Math.round(balloon.offsetHeight/2) + 5 + "px";
	balloon.style.zIndex = 1001;
	balloon.style.display = '';

	/* Set the correct action and target file*/
	mainForm.fileAction.value = action;
	mainForm.fileTarget.value = target;

	/* Disable other controls */
	if (apply_button) {
	apply_button.disabled = true;
	}
	/gray_out(true);/
	}
	function hide_revise_panel(){
	var balloon = document.getElementById("balloon");
	var apply_button = document.getElementById("applyChanges");
	balloon.style.display = 'none';
	if (apply_button) {
	apply_button.disabled = false;
	}
	/gray_out(false);/
	}


	/* Intercept ESC key in order to close revise panel */
	document.onkeyup = keycheck;
	function keycheck(e){
	var KeyID = (window.event) ? event.keyCode : e.keyCode;
	if(KeyID==27){
	hide_revise_panel()
	}
	}

	function findPosition( oElement ) {
	/Return the x,y position on page of the given object/
	if( typeof( oElement.offsetParent ) != 'undefined' ) {
	for( var posX = 0, posY = 0; oElement; oElement = oElement.offsetParent ) {
	posX += oElement.offsetLeft;
	posY += oElement.offsetTop;
	}
	return [ posX, posY ];
	} else {
	return [ oElement.x, oElement.y ];
	}
	}

	function getMainForm()
	{
	return $('form:has(#balloonReviseFileInput)')[0];
	}

	function nextStep()
	{
	if(confirm("You are about to submit the files and end the upload process."))
	{
	var mainForm = getMainForm();
	mainForm.step.value = 2;
	user_must_confirm_before_leaving_page = false;
	mainForm.submit();
	}
	return true;
	}

	function updateForm(doctype, can_describe_doctypes, can_comment_doctypes, can_restrict_doctypes) {
	/* Update the revision panel to hide or not part of the interface
	* based on selected doctype
	*
	* Note: we use a small trick here to use the javascript 'in' operator, which
	* does not work for arrays, but for object => we transform our arrays into
	* objects literal
	*/

	/* Get the elements we are going to affect */
	var renameBox = document.getElementById("renameBox");
	var descriptionBox = document.getElementById("descriptionBox");
	var commentBox = document.getElementById("commentBox");
	var restrictionBox = document.getElementById("restrictionBox");

	if (!can_describe_doctypes) {var can_describe_doctypes = [];}
	if (!can_comment_doctypes) {var can_comment_doctypes = [];}
	if (!can_restrict_doctypes) {var can_restrict_doctypes = [];}

	if ((doctype in can_describe_doctypes) \|\|
	('*' in can_describe_doctypes)){
	descriptionBox.style.display = ''
	} else {
	descriptionBox.style.display = 'none'
	}

	if ((doctype in can_comment_doctypes) \|\|
	('*' in can_comment_doctypes)){
	commentBox.style.display = ''
	} else {
	commentBox.style.display = 'none'
	}

	if ((doctype in can_restrict_doctypes) \|\|
	('*' in can_restrict_doctypes)){
	restrictionBox.style.display = ''
	} else {
	restrictionBox.style.display = 'none'
	}

	/* Move the revise panel accordingly */
	var balloon = document.getElementById("balloon");
	pos = findPosition(last_clicked_link)
	balloon.style.display = '';
	balloon.style.position="absolute";
	balloon.style.left = pos[0] + last_clicked_link.offsetWidth +"px";
	balloon.style.top = pos[1] - Math.round(balloon.offsetHeight/2) + 5 + "px";
	balloon.style.zIndex = 1001;
	balloon.style.display = '';
	}

	function askDelete(bibdocname, form_url_params){
	/*
	Ask user if she wants to delete file
	*/
	if (confirm('Are you sure you want to delete '+bibdocname+'?'))
	{
	if (form_url_params) {
	var mainForm = getMainForm();
	mainForm.fileTarget.value = bibdocname;
	mainForm.fileAction.value='delete';
	user_must_confirm_before_leaving_page = false;
	var options = {
	target: '#uploadFileInterface',
	success: showResponse,
	url: '/submit/managedocfilesasync' + form_url_params
	};
	$(mainForm).ajaxSubmit(options);
	} else {
	/WebSubmit function/
	document.forms[0].fileTarget.value = bibdocname;
	document.forms[0].fileAction.value='delete';
	user_must_confirm_before_leaving_page = false;
	document.forms[0].submit();
	}
	}
	return false;
	}

	function gray_out(visible) {
	/* Gray out the screen so that user cannot click anywhere else.
	Based on <http://www.hunlock.com/blogs/Snippets:_Howto_Grey-Out_The_Screen>
	*/
	var modalShield = document.getElementById('modalShield');
	if (!modalShield) {
	var tbody = document.getElementsByTagName("body")[0];
	var tnode = document.createElement('div');
	tnode.style.position = 'absolute';
	tnode.style.top = '0px';
	tnode.style.left = '0px';
	tnode.style.overflow = 'hidden';
	tnode.style.display = 'none';
	tnode.id = 'modalShield';
	tbody.appendChild(tnode);
	modalShield = document.getElementById('modalShield');
	}

	if (visible){
	// Calculate the page width and height
	var pageWidth = '100%%';
	var pageHeight = '100%%';
	//set the shader to cover the entire page and make it visible.
	modalShield.style.opacity = 0.7;
	modalShield.style.MozOpacity = 0.7;
	modalShield.style.filter = 'alpha(opacity=70)';
	modalShield.style.zIndex = 1000;
	modalShield.style.backgroundColor = '#000000';
	modalShield.style.width = pageWidth;
	modalShield.style.height = pageHeight;
	modalShield.style.display = 'block';
	} else {
	modalShield.style.display = 'none';
	}

	}
	-->
	</script>
	'''
	return javascript

	def get_upload_file_interface_css():
	"""
	Returns the CSS to embed in the page for the upload file interface.
	"""
	# The CSS embedded in the page for the revise panel
	css = '''
	<style type="text/css">
	<!--
	#reviseControl{
	overflow:auto;
	width: 600px;
	padding:1px;
	}
	.reviseControlBrowser{
	padding:5px;
	background-color:#fff;
	border-collapse:collapse;
	border-spacing: 0px;
	border: 1px solid #999;
	}
	.reviseControlFileColumn {
	padding-right:60px;
	padding-left:5px;
	text-align: left;
	color:#00f;
	}
	.reviseControlActionColumn,
	.reviseControlFormatColumn{
	font-size:small;
	}
	.reviseControlActionColumn,
	.reviseControlActionColumn a,
	.reviseControlActionColumn a:link,
	.reviseControlActionColumn a:hover
	.reviseControlActionColumn a:visited{
	font-size:small;
	color: #060;
	text-align:right;
	}
	.reviseControlFormatColumn,
	.reviseControlFormatColumn a,
	.reviseControlFormatColumn a:link,
	.reviseControlFormatColumn a:hover
	.reviseControlFormatColumn a:visited{
	font-size:small;
	color: #555;
	text-align:left;
	}
	.optional{
	color: #555;
	font-size:0.9em;
	font-weight:normal
	}
	.even{
	background-color:#ecf3fe;
	}
	/*
	.buttonLikeLink, .buttonLikeLink:visited, .buttonLikeLink:hover{
	background-color:#fff;
	border:2px outset #555;
	color:#000;
	padding: 2px 5px;
	display:inline-block;
	margin:2px;
	text-decoration:none;
	font-size:small;
	cursor: default
	}
	*/

	#balloon table{
	border-collapse:collapse;
	border-spacing: 0px;
	}
	#balloon table td.topleft{
	background: transparent url(%(CFG_SITE_URL)s/img/balloon/balloon_top_left_shadow.png) no-repeat bottom right;
	}
	#balloon table td.bottomleft{
	background: transparent url(%(CFG_SITE_URL)s/img/balloon/balloon_bottom_left_shadow.png) no-repeat top right;
	}
	#balloon table td.topright{
	background: transparent url(%(CFG_SITE_URL)s/img/balloon/balloon_top_right_shadow.png) no-repeat bottom left;
	}
	#balloon table td.bottomright{
	background: transparent url(%(CFG_SITE_URL)s/img/balloon/balloon_bottom_right_shadow.png) no-repeat top left;
	}
	#balloon table td.top{
	background: transparent url(%(CFG_SITE_URL)s/img/balloon/balloon_top_shadow.png) repeat-x bottom left;
	}
	#balloon table td.bottom{
	background: transparent url(%(CFG_SITE_URL)s/img/balloon/balloon_bottom_shadow.png) repeat-x top left;
	}
	#balloon table td.left{
	background: transparent url(%(CFG_SITE_URL)s/img/balloon/balloon_left_shadow.png) repeat-y top right;
	text-align:right;
	padding:0;
	}
	#balloon table td.right{
	background: transparent url(%(CFG_SITE_URL)s/img/balloon/balloon_right_shadow.png) repeat-y top left;
	}
	#balloon table td.arrowleft{
	background: transparent url(%(CFG_SITE_URL)s/img/balloon/balloon_arrow_left_shadow.png) no-repeat bottom right;
	width:24px;
	height:27px;
	}
	#balloon table td.center{
	background-color:#ffffea;
	}
	#balloon label{
	font-size:small;
	}
	#balloonReviseFile{
	width:220px;
	text-align:left;
	}
	#warningFormats{
	color:#432e11;
	font-size:x-small;
	text-align:center;
	margin: 4px auto 4px auto;
	}
	#fileDoctype {
	margin-bottom:3px;
	}
	#renameBox, #descriptionBox, #commentBox, #keepPreviousVersions{
	margin-top:6px;
	}
	#description, #comment, #rename {
	width:90%%;
	}
	-->
	</style>
	''' % {'CFG_SITE_URL': CFG_SITE_URL}
	return css

	# The HTML markup of the revise panel
	revise_balloon = '''
	<div id="balloon" style="display:none;">
	<input type="hidden" name="fileAction" value="" />
	<input type="hidden" name="fileTarget" value="" />
	<table>
	<tr>
	<td class="topleft"> </td>
	<td class="top"> </td>
	<td class="topright"> </td>
	</tr>
	<tr>
	<td class="left" vertical-align="center" width="24"><img alt=" " src="../img/balloon/balloon_arrow_left_shadow.png" /></td>
	<td class="center">
	<table id="balloonReviseFile">
	<tr>
	<td><label for="balloonReviseFileInput">%(file_label)s:</label><br/>
	<div style="display:none" id="fileDoctypesRow"></div>
	<div id="balloonReviseFileInputBlock"><input type="file" name="myfile" id="balloonReviseFileInput" size="20" /></div>
	<!-- <input type="file" name="myfile" id="balloonReviseFileInput" size="20" onchange="var name=getElementById('rename');var filename=this.value.split('/').pop().split('.')[0];name.value=filename;"/> -->
	<div id="renameBox" style=""><label for="rename">%(filename_label)s:</label><br/><input type="text" name="rename" id="rename" size="20" autocomplete="off"/></div>
	<div id="descriptionBox" style=""><label for="description">%(description_label)s:</label><br/><input type="text" name="description" id="description" size="20" autocomplete="off"/></div>
	<div id="commentBox" style=""><label for="comment">%(comment_label)s:</label><br/><textarea name="comment" id="comment" rows="3"/></textarea></div>
	<div id="restrictionBox" style="display:none">%(restrictions)s</div>
	<div id="keepPreviousVersions" style="display:none"><input type="checkbox" id="balloonReviseFileKeep" name="keepPreviousFiles" checked="checked" /><label for="balloonReviseFileKeep">%(previous_versions_label)s</label> <small>[<a href="" onclick="alert('%(previous_versions_help)s');return false;">?</a>]</small></div>
	<p id="warningFormats" style="display:none"><img src="%(CFG_SITE_URL)s/img/balloon/warning.png" alt="Warning"/> %(revise_format_warning)s [<a href="" onclick="alert('%(revise_format_help)s');return false;">?</a>]</p>
	<div style="text-align:right;margin-top:5px"><input type="button" value="%(cancel)s" onclick="javascript:hide_revise_panel();"/> <input type="submit" value="%(upload)s"/></div>
	</td>
	</tr>
	</table>
	</td>
	<td class="right"> </td>
	</tr>
	<tr>
	<td class="bottomleft"> </td>
	<td class="bottom"> </td>
	<td class="bottomright"> </td>
	</tr>
	</table>
	</div>
	'''

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