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DEMOVID_Validation.py
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Mon, Nov 11, 00:15

DEMOVID_Validation.py
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## This file is part of Invenio.
## Copyright (C) 2011 CERN.
##
## 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.
##
## 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 Invenio; if not, write to the Free Software Foundation, Inc.,
## 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
"""WebSubmit function - Video processing.
"""
from invenio.bibencode_utils import probe
from invenio.websubmit_config import InvenioWebSubmitFunctionStop
import os
__revision__ = "$Id$"
def DEMOVID_Validation(parameters, curdir, form, user_info=None):
"""
"""
messages = []
malformed = False
file_storing_path = os.path.join(curdir, "files", str(user_info['uid']), "NewFile", 'filepath')
file_storing_name = os.path.join(curdir, "files", str(user_info['uid']), "NewFile", 'filename')
file_storing_aspect = os.path.join(curdir, "DEMOVID_ASPECT")
file_storing_title = os.path.join(curdir, "DEMOVID_TITLE")
file_storing_description = os.path.join(curdir, "DEMOVID_DESCR")
file_storing_author = os.path.join(curdir, "DEMOVID_AU")
file_storing_year = os.path.join(curdir, "DEMOVID_YEAR")
## Validate the uploaded video
try:
fp = open(file_storing_path)
fullpath = fp.read()
fp.close()
fp = open(file_storing_name)
filename = fp.read()
fp.close()
if not probe(fullpath) or os.path.splitext(filename)[1] in ['jpg', 'jpeg', 'gif', 'tiff', 'bmp', 'png', 'tga']:
malformed = True
messages.append("The uploaded file is not a supported video format.")
except:
malformed = True
messages.append("Please upload a video.")
## Validate the title
try:
fp = open(file_storing_title)
title = fp.read()
fp.close()
if len(title) < 2 or len(title) > 50:
malformed = True
messages.append("The title is too short, please enter at least 2 characters.")
except:
malformed = True
messages.append("Please enter a title.")
## Validate the description
try:
fp = open(file_storing_description)
description = fp.read()
fp.close()
if len(description) < 10:
malformed = True
messages.append("The description must be at least 10 characters long.")
except:
malformed = True
messages.append("Please enter a description.")
## Validate author
try:
fp = open(file_storing_author)
author = fp.read()
fp.close()
except:
malformed = True
messages.append("Please enter at least one author.")
## Validate year
try:
fp = open(file_storing_year)
year = fp.read()
fp.close()
except:
malformed = True
messages.append("Please enter a year.")
try:
if int(year) < 1000 or int(year) > 9999:
malformed = True
messages.append("Please enter a valid year. It must consist of 4 digits.")
except:
malformed = True
messages.append("Please enter a valid year. It must consist of 4 digits.")
## Validate the aspect ratio
try:
fp = open(file_storing_aspect)
aspect = fp.read()
fp.close()
try:
aspectx, aspecty = aspect.split(':')
aspectx = int(aspectx)
aspecty = int(aspecty)
except:
malformed = True
messages.append("Aspect ratio was not provided as 'Number:Number' format")
except:
malformed = True
messages.append("Please enter an aspect ratio.")
if malformed:
raise InvenioWebSubmitFunctionStop("""
<SCRIPT>
document.forms[0].action="/submit";
document.forms[0].curpage.value = 1;
document.forms[0].step.value = 0;
user_must_confirm_before_leaving_page = false;
alert('%s');
document.forms[0].submit();
</SCRIPT>""" % "\\n".join(messages)
)
else:
return

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