1
# IVLE - Informatics Virtual Learning Environment
2
# Copyright (C) 2007-2008 The University of Melbourne
4
# This program is free software; you can redistribute it and/or modify
5
# it under the terms of the GNU General Public License as published by
6
# the Free Software Foundation; either version 2 of the License, or
7
# (at your option) any later version.
9
# This program is distributed in the hope that it will be useful,
10
# but WITHOUT ANY WARRANTY; without even the implied warranty of
11
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12
# GNU General Public License for more details.
14
# You should have received a copy of the GNU General Public License
15
# along with this program; if not, write to the Free Software
16
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18
# Module: dispatch.html
22
# Provides functions for writing the dispatch-generated HTML header and footer
23
# content (the common parts of the HTML pages shared across the entire site).
24
# Does not include the login page. See login.py.
32
from common import util
33
import plugins.console
35
def write_html_head(req):
36
"""Writes the HTML header, given a request object.
38
req: An IVLE request object. Reads attributes such as title. Also used to
41
# Write the XHTML opening and head element
42
# Note the inline JavaScript, which provides the client with constants
43
# derived from the server configuration.
45
titlepart = req.title + ' - '
48
req.write("""<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
49
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
50
<html xmlns="http://www.w3.org/1999/xhtml">
53
<meta http-equiv="Content-Type" content="%s; charset=utf-8" />
54
""" % (cgi.escape(titlepart), cgi.escape(req.content_type)))
55
# Write inline JavaScript which gives the client code access to certain
56
# server-side variables.
58
username = repr(req.user.login)
61
req.write(""" <script type="text/javascript">
66
""" % (repr(conf.root_dir), repr(conf.public_host), username))
67
iconurl = get_icon_url(req.app, small=True)
69
req.write(""" <link rel="shortcut icon" href="%s" />
70
""" % cgi.escape(iconurl))
71
req.write(""" <link rel="stylesheet" type="text/css" href="%s" />
72
""" % cgi.escape(util.make_path('media/common/ivle.css')))
74
# Write any app-specific style and script links
75
for style in req.styles:
76
req.write(' <link rel="stylesheet" type="text/css" href="%s" />\n'
77
% cgi.escape(util.make_path(style)))
78
for script in req.scripts:
79
req.write(' <script type="text/javascript" src="%s"></script>\n'
80
% cgi.escape(util.make_path(script)))
81
req.write(' <script type="text/javascript">\n /* Init Functions */\n')
82
for init in req.scripts_init:
83
req.write(' window.addEventListener("load", %s, false);\n'%init)
84
req.write(' </script>\n')
86
req.write("</head>\n\n")
88
# Open the body element and write a bunch of stuff there (the header)
90
<div id="ivleheader"></div>
91
<div id="ivleheader_text">
93
<h2>Informatics Virtual Learning Environment</h2>
97
# Get the user's nickname from the request session
98
nickname = req.user.nick
99
req.write(' <p class="userhello"><span id="usernick">%s</span> '
100
'(<span class="username">%s</span>) |\n'
101
' <a href="%s">Settings</a> |\n'
102
' <a href="%s">Help</a> |\n'
103
' <a href="%s">Sign out</a>\n'
105
(cgi.escape(nickname), cgi.escape(req.user.login),
106
cgi.escape(util.make_path('settings')),
107
cgi.escape(get_help_url(req)),
108
cgi.escape(util.make_path('logout'))))
110
req.write(' <p class="userhello">Not logged in.</p>')
112
# ivleheader_tabs is a separate div, so it can be positioned absolutely
113
req.write('</div>\n<div id="ivleheader_tabs">\n')
115
# If the "debuginfo" app is installed, display a warning to the admin to
116
# make sure it is removed in production.
117
if "debuginfo" in conf.apps.app_url:
118
req.write(" <p><small>Warning: debuginfo is enabled. Set "
119
"enable_debuginfo = False in lib/conf/apps.py, when placing IVLE "
120
"into production.</small></p>\n")
122
# If req has a "no_agreement" attribute, then it is because the user has
123
# not signed the agreement; therefore we are displaying the TOS page.
124
# Do not show apps (see dispatch.login).
125
if req.user and not req.user.state == 'no_agreement':
126
# Only print app tabs if logged in
127
print_apps_list(req, req.app)
128
req.write('</div>\n<div id="ivlebody">\n')
130
def write_html_foot(req):
131
"""Writes the HTML footer, given a request object.
133
req: An IVLE request object. Written to.
135
req.write("</div>\n</body>\n</html>\n")
137
def get_help_url(req):
138
"""Gets the help URL most relevant to this page, to place as the
139
"help" link at the top of the page."""
140
reqapp = req.app if hasattr(req, 'app') else None
142
# We're already in help. Link to the exact current page
143
# instead of the generic help page.
145
if reqapp is not None and reqapp in conf.apps.app_url and \
146
conf.apps.app_url[reqapp].hashelp:
147
help_path = os.path.join('help', reqapp)
150
return util.make_path(help_path)
152
def get_icon_url(appurl, small=False):
153
"""Given an app's url name, gets the URL of the icon image for this app,
154
relative to the site root. Returns None if the app has no icon."""
155
if appurl is None: return None
157
app = conf.apps.app_url[appurl]
159
# Due to navigating to a bad app
162
icon_dir = conf.apps.app_icon_dir_small
164
icon_dir = conf.apps.app_icon_dir
165
if app.icon is None: return None
166
return util.make_path(os.path.join(icon_dir, app.icon))
168
def print_apps_list(file, thisapp):
169
"""Prints all app tabs, as a UL. Prints a list item for each app that has
172
file: Object with a "write" method - ie. the request object.
175
file.write(' <ul id="apptabs">\n')
177
for urlname in conf.apps.apps_in_tabs:
178
app = conf.apps.app_url[urlname]
179
if urlname == thisapp:
180
li_attr = ' class="thisapp"'
183
file.write(' <li%s>' % li_attr)
185
file.write('<img src="%s" alt="" /> '
186
% urllib.quote(get_icon_url(urlname)))
187
file.write('<a href="%s" title="%s">%s</a></li>\n'
188
% (urllib.quote(util.make_path(urlname)), cgi.escape(app.desc),
189
cgi.escape(app.name)))
191
file.write(' </ul>\n')