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1079
by William Grant
Merge setup-refactor branch. This completely breaks existing installations; |
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# IVLE - Informatics Virtual Learning Environment
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# Copyright (C) 2007-2008 The University of Melbourne
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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# Module: dispatch.html
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# Author: Matt Giuca
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# Date: 12/12/2007
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# Provides functions for writing the dispatch-generated HTML header and footer
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# content (the common parts of the HTML pages shared across the entire site).
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# Does not include the login page. See login.py.
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import cgi |
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import urllib |
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import os.path |
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import ivle.conf |
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import ivle.conf.apps |
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from ivle import util |
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def write_html_head(req): |
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"""Writes the HTML header, given a request object.
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req: An IVLE request object. Reads attributes such as title. Also used to
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write to."""
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# Write the XHTML opening and head element
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# Note the inline JavaScript, which provides the client with constants
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# derived from the server configuration.
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if req.title != None: |
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titlepart = req.title + ' - ' |
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else: |
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titlepart = '' |
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req.write("""<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" |
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"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml">
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<head>
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<title>%sIVLE</title> |
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<meta http-equiv="Content-Type" content="%s; charset=utf-8" /> |
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""" % (cgi.escape(titlepart), cgi.escape(req.content_type))) |
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# Write inline JavaScript which gives the client code access to certain
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# server-side variables.
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if req.user: |
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1080.1.7
by matt.giuca
The new ivle.database.User class is now used in Request and usrmgt, which |
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username = '"%s"' % req.user.login |
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1079
by William Grant
Merge setup-refactor branch. This completely breaks existing installations; |
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else: |
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username = "null" |
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if req.write_javascript_settings: |
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req.write(""" <script type="text/javascript"> |
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1080.1.7
by matt.giuca
The new ivle.database.User class is now used in Request and usrmgt, which |
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root_dir = "%s"; |
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public_host = "%s"; |
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1079
by William Grant
Merge setup-refactor branch. This completely breaks existing installations; |
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username = %s; |
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</script>
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1080.1.7
by matt.giuca
The new ivle.database.User class is now used in Request and usrmgt, which |
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""" % (ivle.conf.root_dir, ivle.conf.public_host, username)) |
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1079
by William Grant
Merge setup-refactor branch. This completely breaks existing installations; |
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iconurl = get_icon_url(req.app, small=True) |
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if iconurl: |
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req.write(""" <link rel="shortcut icon" href="%s" /> |
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""" % cgi.escape(iconurl)) |
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req.write(""" <link rel="stylesheet" type="text/css" href="%s" /> |
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""" % cgi.escape(util.make_path('media/common/ivle.css'))) |
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# Write any app-specific style and script links
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for style in req.styles: |
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req.write(' <link rel="stylesheet" type="text/css" href="%s" />\n' |
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% cgi.escape(util.make_path(style))) |
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for script in req.scripts: |
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req.write(' <script type="text/javascript" src="%s"></script>\n' |
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% cgi.escape(util.make_path(script))) |
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if len(req.scripts_init) > 0: |
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req.write(' <script type="text/javascript">\n /* Init Functions */\n') |
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for init in req.scripts_init: |
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req.write(' window.addEventListener("load", %s, false);\n'%init) |
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req.write(' </script>\n') |
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req.write("</head>\n\n") |
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# Open the body element and write a bunch of stuff there (the header)
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req.write("""<body> |
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<div id="ivleheader"></div>
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<div id="ivleheader_text">
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<h1>IVLE</h1>
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<h2>Informatics Virtual Learning Environment</h2>
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""") |
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if req.publicmode: |
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req.write(' <p class="userhello">Running in public mode.</p>') |
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elif req.user: |
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# Get the user's nickname from the request session
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nickname = req.user.nick |
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req.write(' <p class="userhello"><span id="usernick">%s</span> ' |
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'(<span class="username">%s</span>) |\n' |
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' <a href="%s">Settings</a> |\n' |
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' <a href="%s">Help</a> |\n' |
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' <a href="%s">Sign out</a>\n' |
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' </p>\n' % |
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(cgi.escape(nickname), cgi.escape(req.user.login), |
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cgi.escape(util.make_path('settings')), |
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cgi.escape(get_help_url(req)), |
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cgi.escape(util.make_path('logout')))) |
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else: |
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req.write(' <p class="userhello">Not logged in.</p>') |
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# ivleheader_tabs is a separate div, so it can be positioned absolutely
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req.write('</div>\n<div id="ivleheader_tabs">\n') |
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# If the "debuginfo" app is installed, display a warning to the admin to
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# make sure it is removed in production.
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if "debuginfo" in ivle.conf.apps.app_url: |
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req.write(" <p><small>Warning: debuginfo is enabled. Set " |
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"enable_debuginfo = False in ivle/conf/apps.py, when placing IVLE "
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"into production.</small></p>\n") |
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# If req has a "no_agreement" attribute, then it is because the user has
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# not signed the agreement; therefore we are displaying the TOS page.
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# Do not show apps (see dispatch.login).
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if req.user and not req.user.state == 'no_agreement': |
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# Only print app tabs if logged in
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print_apps_list(req, req.app) |
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req.write('</div>\n<div id="ivlebody">\n') |
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def write_html_foot(req): |
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"""Writes the HTML footer, given a request object.
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req: An IVLE request object. Written to.
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"""
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req.write("</div>\n</body>\n</html>\n") |
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def get_help_url(req): |
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"""Gets the help URL most relevant to this page, to place as the
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"help" link at the top of the page."""
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reqapp = req.app if hasattr(req, 'app') else None |
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if reqapp == 'help': |
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# We're already in help. Link to the exact current page
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# instead of the generic help page.
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return req.uri |
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if reqapp is not None and reqapp in ivle.conf.apps.app_url and \ |
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ivle.conf.apps.app_url[reqapp].hashelp: |
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help_path = os.path.join('help', reqapp) |
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else: |
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help_path = 'help' |
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return util.make_path(help_path) |
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def get_icon_url(appurl, small=False): |
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"""Given an app's url name, gets the URL of the icon image for this app,
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relative to the site root. Returns None if the app has no icon."""
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if appurl is None: return None |
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try: |
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app = ivle.conf.apps.app_url[appurl] |
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except KeyError: |
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# Due to navigating to a bad app
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return None |
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if small: |
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icon_dir = ivle.conf.apps.app_icon_dir_small |
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else: |
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icon_dir = ivle.conf.apps.app_icon_dir |
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if app.icon is None: return None |
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return util.make_path(os.path.join(icon_dir, app.icon)) |
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def print_apps_list(file, thisapp): |
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"""Prints all app tabs, as a UL. Prints a list item for each app that has
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a tab.
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file: Object with a "write" method - ie. the request object.
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Reads from: ivle.conf
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"""
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file.write(' <ul id="apptabs">\n') |
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for urlname in ivle.conf.apps.apps_in_tabs: |
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app = ivle.conf.apps.app_url[urlname] |
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if urlname == thisapp: |
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li_attr = ' class="thisapp"' |
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else: |
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li_attr = '' |
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file.write(' <li%s>' % li_attr) |
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if app.icon: |
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file.write('<img src="%s" alt="" /> ' |
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% urllib.quote(get_icon_url(urlname))) |
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file.write('<a href="%s" title="%s">%s</a></li>\n' |
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% (urllib.quote(util.make_path(urlname)), cgi.escape(app.desc), |
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cgi.escape(app.name))) |
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file.write(' </ul>\n') |