bibcheckadmin.py
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Created: Wed, Oct 2, 10:21

bibcheckadmin.py
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	## This file is part of Invenio.
	## Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008 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.

	"""Invenio BibCheck Administrator Interface."""

	import cgi
	import os
	import MySQLdb
	from invenio.bibrankadminlib import check_user
	from invenio.webpage import page, create_error_box
	from invenio.webuser import getUid, page_not_authorized
	from invenio.messages import wash_language, gettext_set_language
	#from invenio.urlutils import wash_url_argument, redirect_to_url
	from invenio.config import CFG_SITE_LANG, CFG_SITE_URL, \
	CFG_SITE_NAME, CFG_ETCDIR, CFG_BINDIR

	__lastupdated__ = """$Date$"""


	def is_admin(req):
	"""checks if the user has the rights (etc)"""
	# Check if user is authorized to administer
	uid = 0
	try:
	uid = getUid(req)
	except MySQLdb.Error:
	return error_page(req)
	(auth_code, auth_msg) = check_user(req, 'cfgbibformat')
	if not auth_code:
	return (True, uid)
	else:
	return (False, uid)


	def index(req, search="", ln=CFG_SITE_LANG):
	"""
	Main BibCheck administration page.
	@param ln: language
	"""
	ln = wash_language(ln)
	_ = gettext_set_language(ln)
	navtrail = """<a class="navtrail" href="%s/help/admin">%s</a>""" % \
	(CFG_SITE_URL, _("Admin Area"))
	(admin_ok, uid) = is_admin(req)
	if admin_ok:
	return page(title=_("BibCheck Admin"),
	body=_perform_request_index(ln, search),
	language=ln,
	uid=uid,
	navtrail = navtrail,
	lastupdated=__lastupdated__,
	req=req,
	warnings=[])
	else:
	#redirect to login
	return page_not_authorized(req=req, text=_("Not authorized"), navtrail=navtrail)


	def _perform_request_index(ln, search=""):
	""" makes a listing of files that are found in etc/bibcheck.
	Include a delete button for each. """
	ln = wash_language(ln)
	_ = gettext_set_language(ln)
	mydir = CFG_ETCDIR+"/bibcheck"
	if not os.path.exists(mydir):
	return _("ERROR")+" "+mydir+" "+_("does not exist")
	if not os.path.isdir(mydir):
	return _("ERROR")+" "+mydir+" "+_("is not a directory")
	if not os.access(mydir, os.W_OK):
	return _("ERROR")+" "+mydir+" "+_("is not writable")
	myfiles = os.listdir(mydir)
	if search:
	#include only files that match
	matching = []
	for myfile in myfiles:
	if (myfile.count(search) > 0):
	matching.append(myfile)
	else: #see if the string is in the file
	mypath = CFG_ETCDIR+"/bibcheck/"+myfile
	infile = file(mypath, 'r')
	filelines = infile.readlines()
	for line in filelines:
	if line.count(search) > 0:
	matching.append(myfile)
	break
	infile.close()
	myfiles = matching
	lines = ""
	#add a search box
	lines += """
	<!--make a search box-->
	<table class="admin_wvar" cellspacing="0">
	<tr><td>
	<form action="%(siteurl)s/admin/bibcheck/bibcheckadmin.py/index">
	%(searchforastr)s
	<input type="text" name="search" value="%(search)s" />
	<input type="hidden" name="ln" value="%(ln)s" />
	<input type="submit" class="adminbutton" value="Search">
	</form>
	</td></tr></table> """ % { 'siteurl': CFG_SITE_URL,
	'search': search,
	'ln': ln,
	'searchforastr': _("Limit to knowledge bases containing string:") }
	if myfiles:
	#create a table..
	oddstripestyle = 'style="background-color: rgb(235, 247, 255);"' #for every other line
	lines += '<table class="admin_wvar">\n'
	isodd = True
	myfiles.sort()
	for myfile in myfiles:
	mystyle = ""
	if isodd:
	mystyle = oddstripestyle
	isodd = not isodd
	lines += "<tr "+mystyle+">"
	line = '<td>' + cgi.escape(myfile) + '</td>'
	line += '<td>      </td>'
	line += '<td><a href="%s/admin/bibcheck/bibcheckadmin.py/edit?fname=' % CFG_SITE_URL + \
	myfile+'&ln='+ln+'">Edit</a></td>'
	line += '<td>   </td>'
	reallydelq = _("Really delete")+" "+myfile+"?"
	line += '<td><a href="%s/admin/bibcheck/bibcheckadmin.py/delete?fname=' % CFG_SITE_URL + \
	myfile+'&ln='+ln+'" onclick="return confirm(\''+reallydelq+'\');">'+_("Delete")+'</a></td>'
	#verify syntax..
	line += '<td>   </td>'
	line += '<td><a href="%s/admin/bibcheck/bibcheckadmin.py/verify?fname=' % CFG_SITE_URL + \
	myfile+'&ln='+ln+'">'+_("Verify syntax")+'</a></td>'
	lines += line+"</tr>\n"
	lines += "</table>\n"
	myout = lines
	myout += "<br/><br/><a href=\"%s/admin/bibcheck/bibcheckadmin.py/edit\">" % CFG_SITE_URL + \
	_("Create new")+"</a>"
	return myout

	def verify(req, fname, ln=CFG_SITE_LANG):
	"""verify syntax by calling an external checking program"""
	ln = wash_language(ln)
	_ = gettext_set_language(ln)
	(admin_ok, uid) = is_admin(req)

	# sanity check for fname:
	fname = os.path.basename(fname)

	navtrail = """<a class="navtrail" href="%s/help/admin">%s</a>""" % \
	(CFG_SITE_URL, _("Admin Area"))
	navtrail += """> <a class="navtrail" href="%s/admin/bibcheck/bibcheckadmin.py/">BibCheck Admin</a> """ % CFG_SITE_URL
	errors = ""
	outstr = ""
	errstr = ""
	path_to_bibcheck_cli = CFG_BINDIR + os.sep + 'bibcheck'
	if not os.path.exists(path_to_bibcheck_cli):
	errors = _("File %s does not exist.") % path_to_bibcheck_cli
	if not errors:
	#first check where we have stderr now so that we can assign it back
	try:
	(handle, mystdout, mystderr) = os.popen3(path_to_bibcheck_cli + " --verify" + fname)
	outstr = str(mystdout.readlines())
	errstr = str(mystderr.readlines())
	except:
	#the call failed?
	errors = _("Calling bibcheck -verify failed.")
	if not errors:
	if not errstr:
	return "OK"
	else:
	return errstr
	else:
	return page(title=_("Verify BibCheck config file"),
	body= _("Verify problem")+":<br/>"+errors,
	language= ln,
	uid=uid,
	navtrail = navtrail,
	lastupdated=__lastupdated__,
	req=req,
	warnings=[])

	def edit(req, ln=CFG_SITE_LANG, fname=""):
	""" creates an editor for the file. This is called also when the user wants to
	create a new file. In the case fname is empty"""
	ln = wash_language(ln)
	_ = gettext_set_language(ln)

	# sanity check for fname:
	fname = os.path.basename(fname)

	#check auth
	(admin_ok, uid) = is_admin(req)
	navtrail = """<a class="navtrail" href="%s/help/admin">%s</a>""" % \
	(CFG_SITE_URL, _("Admin Area"))
	navtrail += """> <a class="navtrail" href="%s/admin/bibcheck/bibcheckadmin.py/">BibCheck Admin</a> """ % CFG_SITE_URL
	myout = _("File")+" " + cgi.escape(fname) + "<br/>"
	if admin_ok:
	#add a javascript checker so that the user cannot save a form with empty
	#fname
	myout += """<script language="JavaScript" type="text/javascript">
	<!--
	function checkform ( form ) { if (form.fname.value == "") {
	alert( "Missing filename." ); form.fname.focus(); return false ;
	}
	return true ;
	}
	-->
	</script>"""


	#read the file if there is one
	filelines = []
	if fname:
	myfile = CFG_ETCDIR+"/bibcheck/"+fname
	infile = file(myfile, 'r')
	filelines = infile.readlines()
	infile.close()
	myout += '<form method="post" action="save" onsubmit="return checkform(this);">'
	#create a filename dialog box if there is no fname, otherwise it's hidden
	if fname:
	myout += '<input type="hidden" name="fname" value="'+fname+'">'
	else:
	myout += '<input name="fname" value="'+fname+'"><br/>'
	myout += '<input type="hidden" name="wasnew" value="1">'
	myout += '<input type="hidden" name="ln" value="'+ln+'">'
	myout += '<textarea name="code" id="code" rows="25" style="width:100%">'
	for line in filelines:
	myout += line
	#create a save button
	myout += '</textarea><br/><input type="submit" name="save" value="'+_("Save Changes")+'"></form>'
	#create page
	return page(title=_("Edit BibCheck config file"),
	body= myout,
	language= ln,
	uid=uid,
	navtrail = navtrail,
	lastupdated=__lastupdated__,
	req=req,
	warnings=[])
	else: #not admin
	return page_not_authorized(req=req, text=_("Not authorized"), navtrail=navtrail)

	def save(req, ln, fname, code, wasnew=0):
	"""saves code into file fname. wasnew is 1 if this is a new file"""
	ln = wash_language(ln)
	_ = gettext_set_language(ln)

	# sanity check for fname:
	fname = os.path.basename(fname)

	#check auth
	(admin_ok, uid) = is_admin(req)
	navtrail = '''<a class="navtrail" href="%s/help/admin">%s</a>''' % \
	(CFG_SITE_URL, _("Admin Area"))
	navtrail += """> <a class="navtrail" href="%s/admin/bibcheck/bibcheckadmin.py/">BibCheck Admin</a> """ % CFG_SITE_URL
	myout = _("File")+" " + cgi.escape(fname) + " "
	if admin_ok:
	myfile = CFG_ETCDIR+"/bibcheck/"+fname
	#check if the file exists if this was new
	if wasnew and os.path.exists(myfile):
	msg = myout+" "+_("already exists.")
	else:
	#write code into file
	msg = myout+_("written OK.")
	try:
	outfile = file(myfile, 'w')
	outfile.write(code)
	outfile.close()
	except IOError:
	msg = myout+_("write failed.")
	#print message
	return page(title=_("Save BibCheck config file"),
	body= msg,
	language= ln,
	uid=uid,
	navtrail = navtrail,
	lastupdated=__lastupdated__,
	req=req,
	warnings=[])
	else:
	return page_not_authorized(req=req, text=_("Not authorized"), navtrail=navtrail)

	def delete(req, ln, fname):
	"""delete file fname"""
	ln = wash_language(ln)
	_ = gettext_set_language(ln)

	# sanity check for fname:
	fname = os.path.basename(fname)

	#check auth
	(admin_ok, uid) = is_admin(req)
	navtrail = """<a class="navtrail" href="%s/help/admin">%s</a>""" % \
	(CFG_SITE_URL, _("Admin Area"))
	navtrail += """> <a class="navtrail" href="%s/admin/bibcheck/bibcheckadmin.py/">BibCheck Admin</a> """ % CFG_SITE_URL
	myout = _("File")+" "+fname+" "
	if admin_ok:
	msg = ""
	myfile = CFG_ETCDIR+"/bibcheck/"+fname
	success = 1
	try:
	os.remove(myfile)
	except:
	success = 0
	if success:
	msg = myout+_("deleted")+"."
	else:
	msg = myout+_("delete failed")+"."
	#print message
	return page(title=_("Delete BibCheck config file"),
	body= msg,
	language= ln,
	uid=uid,
	navtrail = navtrail,
	lastupdated=__lastupdated__,
	req=req,
	warnings=[])
	else:
	return page_not_authorized(req=req, text=_("Not authorized"), navtrail=navtrail)

	def error_page(req, ln=CFG_SITE_LANG, verbose=1):
	"""Generic error .. in case one cannot find anything more specific"""
	_ = gettext_set_language(ln)
	return page(title=_("Internal Error"),
	body = create_error_box(req, verbose=verbose, ln=ln),
	description="%s - Internal Error" % CFG_SITE_NAME,
	keywords="%s, Internal Error" % CFG_SITE_NAME,
	language=ln,
	req=req)

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