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bibexport_method_fieldexporter_webinterface.py
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bibexport_method_fieldexporter_webinterface.py
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# -*- coding: utf-8 -*-
## $Id: webmessage_webinterface.py,v 1.13 2008/03/12 16:48:08 tibor Exp $
##
## This file is part of Invenio.
## Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 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.
"""FieldExporter web interface"""
__revision__ = "$Id: webmessage_webinterface.py,v 1.13 2008/03/12 16:48:08 tibor Exp $"
__lastupdated__ = """$Date: 2008/03/12 16:48:08 $"""
import re
from invenio.webpage import page
from invenio.webinterface_handler import WebInterfaceDirectory, \
wash_urlargd
from invenio.urlutils import redirect_to_url
from invenio.config import CFG_SITE_URL, \
CFG_SITE_SECURE_URL
from invenio.dateutils import convert_datestruct_to_datetext, \
convert_datetext_to_datestruct
from invenio.messages import gettext_set_language
from invenio.bibexport_method_fieldexporter import get_css, \
get_navigation_menu, \
perform_request_edit_query, \
perform_request_edit_job, \
perform_request_jobs, \
perform_request_new_job, \
perform_request_save_job, \
perform_request_delete_jobs, \
perform_request_run_jobs, \
perform_request_job_queries, \
perform_request_new_query, \
perform_request_save_query, \
perform_request_delete_queries, \
perform_request_run_queries, \
perform_request_job_history, \
perform_request_job_results, \
perform_request_display_job_result, \
perform_request_download_job_result, \
AccessDeniedError
from invenio.bibexport_method_fieldexporter_dblayer import Job, \
Query, \
JobResult
from invenio.webuser import collect_user_info, \
page_not_authorized
from invenio.access_control_engine import acc_authorize_action
class WebInterfaceFieldExporterPages(WebInterfaceDirectory):
"""Defines the set of /fieldexporter pages."""
_exports = ["", "jobs", "edit_job",
"job_queries", "edit_query",
"job_results", "display_job_result", "download_job_result",
"history", "not_authorized"]
# constats containig URL to the pages
_EXPORT_URL = "%s/exporter" % (CFG_SITE_URL, )
_JOBS_URL = "%s/exporter/jobs" % (CFG_SITE_URL, )
_EDIT_JOB_URL = "%s/exporter/edit_job" % (CFG_SITE_URL, )
_EDIT_QUERY_URL = "%s/exporter/edit_query" % (CFG_SITE_URL, )
_JOB_QUERIES_URL = "%s/exporter/job_queries" % (CFG_SITE_URL, )
_JOB_HISTORY_URL = "%s/exporter/history" % (CFG_SITE_URL, )
_NOT_AUTHORIZED_URL = "%s/exporter/not_authorized" % (CFG_SITE_URL, )
_LOGIN_URL = "%s/youraccount/login" % (CFG_SITE_SECURE_URL,)
_NAVTRAIL_EXPORT = """<a href="/exporter" class="navtrail">Export</a>"""
def index(self, req, form):
""" The function called by default"""
redirect_to_url(req, self._JOB_HISTORY_URL)
__call__ = index
def jobs(self, req, form):
"""Displays all the jobs of a given user
and allows creation, deletion and execution of jobs"""
argd = wash_urlargd(form, {
"new_button": (str, ""),
"run_button": (str, ""),
"delete_button": (str, ""),
"selected_jobs": (list, "")
})
# load the right message language
language = argd["ln"]
_ = gettext_set_language(language)
self._check_user_credentials(req, language)
user_id = self._get_user_id(req)
try:
# if the form is submitted through some of the buttons
# we should perform the appropriate action
if argd["new_button"]:
self._redirect_to_page(req, self._EDIT_JOB_URL, language)
elif argd["delete_button"]:
job_ids = argd["selected_jobs"]
perform_request_delete_jobs(job_ids = job_ids,
user_id = user_id,
language = language)
elif argd["run_button"]:
job_ids = argd["selected_jobs"]
perform_request_run_jobs(job_ids = job_ids,
user_id = user_id,
language = language)
self._redirect_to_page(req, self._JOB_HISTORY_URL, language)
user_id = self._get_user_id(req)
body = perform_request_jobs(user_id = user_id,
language = language)
except AccessDeniedError:
self._redirect_to_not_authorised_page(req, language)
return page(title = _("Export Job Overview"),
metaheaderadd = get_css(),
body = body,
req = req,
navmenuid = "fieldexporter",
titleprologue = get_navigation_menu(language),
navtrail = self._NAVTRAIL_EXPORT,
language = language)
def edit_job(self, req, form):
"""Edits an existing job or creates a new one"""
# Create an empty job and use its default values
# to init missing parameters
job = Job()
argd = wash_urlargd(form,
{"job_name": (str, job.get_name()),
"output_directory": (str, job.get_output_directory()),
"job_frequency": (int, job.get_frequency()),
"output_format": (int, job.get_output_format()),
"last_run": (str, convert_datestruct_to_datetext(job.get_last_run())),
"id": (int, job.get_id()),
"save_button": (str, ""),
"cancel_button": (str, ""),
"edit_queries_button": (str, "")
})
language = argd["ln"]
# load the right message language
_ = gettext_set_language(language)
self._check_user_credentials(req, language)
user_id = self._get_user_id(req)
job_id = argd["id"]
job = Job(job_id = job_id,
name = argd["job_name"],
frequency = argd["job_frequency"],
output_format = argd["output_format"],
last_run = convert_datetext_to_datestruct(argd["last_run"]),
output_directory = argd["output_directory"])
try:
if argd["cancel_button"]:
self._redirect_to_page(req, self._JOBS_URL, language)
elif argd["save_button"]:
perform_request_save_job(job = job,
user_id = user_id,
language = language)
self._redirect_to_page(req, self._JOBS_URL, language)
elif argd["edit_queries_button"]:
result_job_id = perform_request_save_job(job = job,
user_id = user_id,
language = language)
edit_queries_url = "%s?job_id=%s" % (self._JOB_QUERIES_URL, result_job_id)
self._redirect_to_page(req, edit_queries_url, language)
elif Job.ID_MISSING == job_id:
title = _("New Export Job")
body = perform_request_new_job(language = language)
else:
title = _("Edit Export Job")
body = perform_request_edit_job(job_id = job_id,
user_id = user_id,
language = language)
except AccessDeniedError:
self._redirect_to_not_authorised_page(req, language)
return page(title = title,
metaheaderadd=get_css(),
body = body,
req = req,
navmenuid = "fieldexporter",
titleprologue = get_navigation_menu(language),
navtrail = self._NAVTRAIL_EXPORT,
language = language)
def job_queries(self, req, form):
"""Allows edition and manipulations of the queries of a job"""
argd = wash_urlargd(form, {
"new_button": (str, ""),
"run_button": (str, ""),
"delete_button": (str, ""),
"selected_queries": (list, ""),
"job_id": (int, -1)
})
# load the right message language
language = argd["ln"]
_ = gettext_set_language(language)
self._check_user_credentials(req, language)
user_id = self._get_user_id(req)
job_id = argd["job_id"]
try:
# if the form is submitted through some of the buttons
# we should perform the appropriate action
if argd["new_button"]:
new_query_url = "%s?job_id=%s" % (self._EDIT_QUERY_URL, job_id)
self._redirect_to_page(req, new_query_url, language)
if argd["delete_button"]:
query_ids = argd["selected_queries"]
perform_request_delete_queries(query_ids = query_ids,
user_id = user_id,
language = language)
if argd["run_button"]:
title = _("Query Results")
query_ids = argd["selected_queries"]
body = perform_request_run_queries(query_ids = query_ids,
user_id = user_id,
job_id = job_id,
language = language)
else:
title = _("Export Job Queries")
body = perform_request_job_queries(job_id = job_id,
user_id = user_id,
language = language)
except AccessDeniedError:
self._redirect_to_not_authorised_page(req, language)
return page(title = title,
metaheaderadd=get_css(),
body = body,
req = req,
navmenuid = "fieldexporter",
titleprologue = get_navigation_menu(language),
navtrail = self._NAVTRAIL_EXPORT,
language = language)
def edit_query(self, req, form):
"""Edits an existing query or creates a new one"""
# Create an empty job and use its default values
# to init missing parameters
query = Query()
name = query.get_name()
output_fields = ", ".join(query.get_output_fields())
search_criteria = query.get_search_criteria()
comment = query.get_comment()
query_id = query.get_id()
argd = wash_urlargd(form,
{"name": (str, name),
"search_criteria": (str, search_criteria),
"output_fields": (str, output_fields),
"comment": (str, comment),
"id": (int, query_id),
"job_id": (int, Job.ID_MISSING),
"save_button": (str, ""),
"cancel_button": (str, "")
})
# load the right message language
language = argd["ln"]
_ = gettext_set_language(language)
self._check_user_credentials(req, language)
user_id = self._get_user_id(req)
query_id = argd["id"]
job_id = argd["job_id"]
current_job_queries_url = "%s?job_id=%s" %(self._JOB_QUERIES_URL, job_id)
try:
if argd["cancel_button"]:
self._redirect_to_page(req, current_job_queries_url, language)
elif argd["save_button"]:
name = argd["name"]
search_criteria = argd["search_criteria"]
comment = argd["comment"]
# split the text entered by user to different fields
outoutput_fields_text = argd["output_fields"]
re_split_pattern = re.compile(r',\s*')
output_fields = re_split_pattern.split(outoutput_fields_text)
query = Query(query_id,
name,
search_criteria,
comment,
output_fields)
perform_request_save_query(query = query,
job_id = job_id,
user_id = user_id,
language = language)
self._redirect_to_page(req, current_job_queries_url, language)
elif Query.ID_MISSING == query_id:
title = _("New Query")
body = perform_request_new_query(job_id = job_id,
user_id = user_id,
language = language)
else:
title = _("Edit Query")
body = perform_request_edit_query(query_id = query_id,
job_id = job_id,
user_id = user_id,
language = language)
except AccessDeniedError:
self._redirect_to_not_authorised_page(req, language)
return page(title = title,
metaheaderadd=get_css(),
body = body,
req = req,
navmenuid = "fieldexporter",
titleprologue = get_navigation_menu(language),
navtrail = self._NAVTRAIL_EXPORT,
language = language)
def job_results(self, req, form):
"""Displays information about the results of a job"""
argd = wash_urlargd(form, {
"result_id": (int, -1)
})
# load the right message language
language = argd["ln"]
_ = gettext_set_language(language)
self._check_user_credentials(req, language)
user_id = self._get_user_id(req)
job_result_id = argd["result_id"]
title = _("Export Job Results")
try:
body = perform_request_job_results(job_result_id = job_result_id,
user_id = user_id,
language = language)
except AccessDeniedError:
self._redirect_to_not_authorised_page(req, language)
return page(title = title,
metaheaderadd = get_css(),
body = body,
req = req,
navmenuid = "fieldexporter",
titleprologue = get_navigation_menu(language),
navtrail = self._NAVTRAIL_EXPORT,
language = language)
def display_job_result(self, req, form):
"""Displays the results of a job"""
argd = wash_urlargd(form, {
"result_id": (int, JobResult.ID_MISSING),
"output_format" : (int, Job.OUTPUT_FORMAT_MISSING)
})
# load the right message language
language = argd["ln"]
_ = gettext_set_language(language)
self._check_user_credentials(req, language)
user_id = self._get_user_id(req)
job_result_id = argd["result_id"]
output_format = argd["output_format"]
title = _("Export Job Result")
try:
body = perform_request_display_job_result(job_result_id = job_result_id,
output_format = output_format,
user_id = user_id,
language = language)
except AccessDeniedError:
self._redirect_to_not_authorised_page(req, language)
return page(title = title,
metaheaderadd = get_css(),
body = body,
req = req,
navmenuid = "fieldexporter",
titleprologue = get_navigation_menu(language),
navtrail = self._NAVTRAIL_EXPORT,
language = language)
def download_job_result(self, req, form):
"""Returns to the browser zip file containing the job result"""
argd = wash_urlargd(form, {
"result_id" : (int, JobResult.ID_MISSING),
"output_format" : (int, Job.OUTPUT_FORMAT_MISSING)
})
# load the right message language
language = argd["ln"]
job_result_id = argd["result_id"]
output_format = argd["output_format"]
user_id = self._get_user_id(req)
_ = gettext_set_language(language)
self._check_user_credentials(req, language)
title = _("Export Job Result")
try:
perform_request_download_job_result(req = req,
job_result_id = job_result_id,
output_format = output_format,
user_id = user_id,
language = language)
except AccessDeniedError:
self._redirect_to_not_authorised_page(req, language)
def history(self, req, form):
"""Displays history of the jobs"""
argd = wash_urlargd(form, {})
# load the right message language
language = argd["ln"]
_ = gettext_set_language(language)
self._check_user_credentials(req, language)
title = _("Export Job History")
user_id = self._get_user_id(req)
body = perform_request_job_history(user_id, language)
return page(title = title,
metaheaderadd = get_css(),
body = body,
req = req,
navmenuid = "fieldexporter",
titleprologue = get_navigation_menu(language),
navtrail = self._NAVTRAIL_EXPORT,
language = language)
def not_authorized(self, req, form):
"""Displays page telling the user that
he is not authorised to access the resource"""
argd = wash_urlargd(form, {})
# load the right message language
language = argd["ln"]
_ = gettext_set_language(language)
text = _("You are not authorised to access this resource.")
return page_not_authorized(req = req, ln = language, text = text)
def _check_user_credentials(self, req, language):
"""Check if the user is allowed to use field exporter
@param req: request as received from apache
@param language: the language of the page
"""
user_info = collect_user_info(req)
#redirect guests to login page
if "1" == user_info["guest"]:
referer_url = "%s?ln=%s" % (self._EXPORT_URL, language)
redirect_url = "%s?ln=%s&referer=%s" % (self._LOGIN_URL,
language,
referer_url)
redirect_to_url(req, redirect_url)
#redirect unauthorized user to not_authorized page
(auth_code, auth_msg) = acc_authorize_action(user_info, 'cfgbibexport')
if 0 != auth_code:
self._redirect_to_not_authorised_page(req, language)
def _redirect_to_not_authorised_page(self, req, language):
"""Redirects user to page telling him that he is not
authorised to do something
@param req: request as received from apache
@param language: the language of the page
"""
self._redirect_to_page(req, self._NOT_AUTHORIZED_URL, language)
def _redirect_to_page(self, req, url, language):
"""Redirects user to a page with the given URL
and language.
@param req: request as received from apache
@param language: the language of the page
@param url: url to redirect to
"""
# check which symbol to use for appending the parameters
# if this is the only parameter use ?
if -1 == url.find("?"):
append_symbol = "?"
# if there are other parameters already appended, use &
else:
append_symbol = "&"
redirect_url = "%s%sln=%s" % (url, append_symbol, language)
redirect_to_url(req, redirect_url)
def _get_user_id(self, req):
"""Return the identifier of the currently loged user.
@param req: request as received from apache
@return: identifier of currently logged user
"""
user_info = collect_user_info(req)
user_id = user_info['uid']
return user_id

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