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webpage.py
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## 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.
"""CDS Invenio Web Page Functions"""
__revision__ = "$Id$"
from invenio.config import \
CFG_WEBSTYLE_CDSPAGEBOXLEFTBOTTOM, \
CFG_WEBSTYLE_CDSPAGEBOXLEFTTOP, \
CFG_WEBSTYLE_CDSPAGEBOXRIGHTBOTTOM, \
CFG_WEBSTYLE_CDSPAGEBOXRIGHTTOP, \
CFG_SITE_LANG, \
CFG_SITE_URL, \
CFG_SITE_SECURE_URL
from invenio.access_control_config import CFG_EXTERNAL_AUTH_USING_SSO
from invenio.messages import gettext_set_language
from invenio.webuser import create_userinfobox_body, getUid, isGuestUser
from invenio.errorlib import get_msgs_for_code_list, register_errors
import invenio.template
webstyle_templates = invenio.template.load('webstyle')
from xml.dom.minidom import getDOMImplementation
def create_navtrailbox_body(title,
previous_links,
prolog="",
separator=""" > """,
epilog="",
language=CFG_SITE_LANG):
"""Create navigation trail box body
input: title = page title;
previous_links = the trail content from site title until current page (both ends exlusive).
output: text containing the navtrail
"""
return webstyle_templates.tmpl_navtrailbox_body(ln = language,
title = title,
previous_links = \
previous_links,
separator = separator,
prolog = prolog,
epilog = epilog)
def page(title, body, navtrail="", description="", keywords="",
metaheaderadd="", uid=None,
cdspageheaderadd="", cdspageboxlefttopadd="",
cdspageboxleftbottomadd="", cdspageboxrighttopadd="",
cdspageboxrightbottomadd="", cdspagefooteradd="", lastupdated="",
language=CFG_SITE_LANG, verbose=1, titleprologue="",
titleepilogue="", secure_page_p=0, req=None, errors=[], warnings=[], navmenuid="admin",
navtrail_append_title_p=1, of="", rssurl=CFG_SITE_URL+"/rss", show_title_p=True):
"""page(): display CDS web page
input: title of the page
body of the page in html format
description goes to the metadata in the header of the HTML page
keywords goes to the metadata in the header of the html page
metaheaderadd goes to further metadata in the header of the html page
cdspageheaderadd is a message to be displayed just under the page header
cdspageboxlefttopadd is a message to be displayed in the page body on left top
cdspageboxleftbottomadd is a message to be displayed in the page body on left bottom
cdspageboxrighttopadd is a message to be displayed in the page body on right top
cdspageboxrightbottomadd is a message to be displayed in the page body on right bottom
cdspagefooteradd is a message to be displayed on the top of the page footer
lastupdated is a text containing the info on last update (optional)
language is the language version of the page
verbose is verbosity of the page (useful for debugging)
titleprologue is to be printed right before page title
titleepilogue is to be printed right after page title
req is the mod_python request object
errors is the list of error codes as defined in the moduleName_config.py file of the calling module
log is the string of data that should be appended to the log file (errors automatically logged)
secure_page_p is 0 or 1 and tells whether we are to use HTTPS friendly page elements or not
navmenuid the section of the website this page belongs (search, submit, baskets, etc.)
navtrail_append_title_p is 0 or 1 and tells whether page title is appended to navtrail
of is an output format (use xx for xml output (e.g. AJAX))
rssfeed is the url of the RSS feed for this page
show_title_p is 0 or 1 and tells whether page title should be displayed in body of the page
output: the final cds page with header, footer, etc.
"""
_ = gettext_set_language(language)
if req and uid is None:
uid = getUid(req)
if CFG_EXTERNAL_AUTH_USING_SSO and not isGuestUser(uid):
## If the user is logged in and we are using SSO
## this trick will keep the SSO session alive
## (SSO session need an https connection)
body += """<img src="%s/img/keep_sso_connection_alive.gif"
alt=" " width="0" height="0"
style="visibility : hidden;" />""" % CFG_SITE_SECURE_URL
elif uid is None:
## 0 means generic guest user.
uid = 0
if of == 'xx':
#xml output (e.g. AJAX calls) => of=xx
req.content_type = 'text/xml'
impl = getDOMImplementation()
output = impl.createDocument(None, "invenio-message", None)
root = output.documentElement
body_node = output.createElement('body')
body_text = output.createCDATASection(unicode(body, 'utf_8'))
body_node.appendChild(body_text)
root.appendChild(body_node)
if errors:
errors_node = output.createElement('errors')
errors = get_msgs_for_code_list(errors, 'error', language)
register_errors(errors, 'error', req)
for (error_code, error_msg) in errors:
error_node = output.createElement('error')
error_node.setAttribute('code', error_code)
error_text = output.createTextNode(error_msg)
error_node.appendChild(error_text)
errors_node.appendChild(error_node)
root.appendChild(errors_node)
if warnings:
warnings_node = output.createElement('warnings')
warnings = get_msgs_for_code_list(warnings, 'warning', language)
register_errors(warnings, 'warning')
for (warning_code, warning_msg) in warnings:
warning_node = output.createElement('warning')
warning_node.setAttribute('code', warning_code)
warning_text = output.createTextNode(warning_msg)
warning_node.appendChild(warning_text)
warnings_node.appendChild(warning_node)
root.appendChild(warnings_node)
return output.toprettyxml(encoding="utf-8" )
else:
#usual output
# if there are event
if warnings:
warnings = get_msgs_for_code_list(warnings, 'warning', language)
register_errors(warnings, 'warning')
# if there are errors
if errors:
errors = get_msgs_for_code_list(errors, 'error', language)
register_errors(errors, 'error', req)
body = create_error_box(req, errors=errors, ln=language)
return webstyle_templates.tmpl_page(req, ln=language,
description = description,
keywords = keywords,
metaheaderadd = metaheaderadd,
userinfobox = create_userinfobox_body(req, uid, language),
navtrailbox = create_navtrailbox_body(navtrail_append_title_p \
and title or '',
navtrail,
language=language),
uid = uid,
secure_page_p = secure_page_p,
pageheaderadd = cdspageheaderadd,
boxlefttop = CFG_WEBSTYLE_CDSPAGEBOXLEFTTOP,
boxlefttopadd = cdspageboxlefttopadd,
boxleftbottomadd = cdspageboxleftbottomadd,
boxleftbottom = CFG_WEBSTYLE_CDSPAGEBOXLEFTBOTTOM,
boxrighttop = CFG_WEBSTYLE_CDSPAGEBOXRIGHTTOP,
boxrighttopadd = cdspageboxrighttopadd,
boxrightbottomadd = cdspageboxrightbottomadd,
boxrightbottom = CFG_WEBSTYLE_CDSPAGEBOXRIGHTBOTTOM,
titleprologue = titleprologue,
title = title,
titleepilogue = titleepilogue,
body = body,
lastupdated = lastupdated,
pagefooteradd = cdspagefooteradd,
navmenuid = navmenuid,
rssurl = rssurl,
show_title_p = show_title_p)
def pageheaderonly(title, navtrail="", description="", keywords="", uid=0,
cdspageheaderadd="", language=CFG_SITE_LANG, req=None,
secure_page_p=0, verbose=1, navmenuid="admin",
navtrail_append_title_p=1, metaheaderadd="",
rssurl=CFG_SITE_URL+"/rss"):
"""Return just the beginning of page(), with full headers.
Suitable for the search results page and any long-taking scripts."""
return webstyle_templates.tmpl_pageheader(req,
ln = language,
headertitle = title,
description = description,
keywords = keywords,
metaheaderadd = metaheaderadd,
userinfobox = create_userinfobox_body(req, uid, language),
navtrailbox = create_navtrailbox_body(navtrail_append_title_p \
and title or '',
navtrail,
language=language),
uid = uid,
secure_page_p = secure_page_p,
pageheaderadd = cdspageheaderadd,
navmenuid = navmenuid,
rssurl = rssurl)
def pagefooteronly(cdspagefooteradd="", lastupdated="",
language=CFG_SITE_LANG, req=None, verbose=1):
"""Return just the ending of page(), with full footer.
Suitable for the search results page and any long-taking scripts."""
return webstyle_templates.tmpl_pagefooter(req,
ln=language,
lastupdated = lastupdated,
pagefooteradd = cdspagefooteradd)
def create_error_box(req, title=None, verbose=1, ln=CFG_SITE_LANG, errors=None):
"""Analyse the req object and the sys traceback and return a text
message box with internal information that would be suitful to
display when something bad has happened.
"""
_ = gettext_set_language(ln)
return webstyle_templates.tmpl_error_box(title = title,
ln = ln,
verbose = verbose,
req = req,
errors = errors)
def adderrorbox(header='', datalist=[]):
"""used to create table around main data on a page, row based"""
try:
perc = str(100 // len(datalist)) + '%'
except ZeroDivisionError:
perc = 1
output = '<table class="errorbox">'
output += '<thead><tr><th class="errorboxheader" colspan="%s">%s</th></tr></thead>' % (len(datalist), header)
output += '<tbody>'
for row in [datalist]:
output += '<tr>'
for data in row:
output += '<td style="vertical-align: top; margin-top: 5px; width: %s;">' % (perc, )
output += data
output += '</td>'
output += '</tr>'
output += '</tbody></table>'
return output

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