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Viewing changes to ivle/webapp/filesystem/svnlog/__init__.py

ivle.webapp.filesystem.svnlog: Port www/apps/svnlog to new framework. As with
    ivle.webapp.filesystem.diff, this involves moving things around and
    making services/svnlogservice return JSON.

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ivle/webapp/filesystem/svnlog/__init__.py
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# IVLE
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# Copyright (C) 2008 The University of Melbourne
 
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# IVLE - Informatics Virtual Learning Environment
 
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# Copyright (C) 2007-2009 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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# 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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# App: SVN Log Service
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# Author: William Grant
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# Date: 08/07/2008
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# This is merely a wrapper around the trampolined svnlogservice.
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import os
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import cjson
 
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import pysvn
 
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import ivle.conf
 
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import ivle.date
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import ivle.interpret
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def handle(req):
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    """Handler for Subversion log functionality."""
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    req.styles = ["media/svn/log.css"]
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    req.write_html_head_foot = True
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    if req.path == "":
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        req.throw_redirect(os.path.join(req.uri, req.user.login))
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    interpreter = ivle.interpret.interpreter_objects["cgi-python"]
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    jail_dir = os.path.join(ivle.conf.jail_base, req.user.login)
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    ivle.interpret.interpret_file(req, req.user, jail_dir,
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          os.path.join(ivle.conf.share_path, 'services/svnlogservice'),
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          interpreter)
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from ivle.webapp.base.xhtml import XHTMLView
 
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from ivle.webapp.base.plugins import BasePlugin
 
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from ivle.webapp.errors import NotFound, BadRequest
 
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class SubversionLogView(XHTMLView):
 
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    template = 'template.html'
 
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    def populate(self, req, ctx):
 
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        req.styles = ["/media/svn/log.css"]
 
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        svnlogservice_path = os.path.join(ivle.conf.share_path,
 
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                                          'services/svnlogservice')
 
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        user_jail_dir = os.path.join(ivle.conf.jail_base, req.user.login)
 
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        (out, err) = ivle.interpret.execute_raw(req.user, user_jail_dir,
 
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                             '/home', svnlogservice_path, [self.path])
 
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        assert not err
 
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        response = cjson.decode(out)
 
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        if 'error' in response:
 
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            if response['error'] == 'notfound':
 
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                raise NotFound()
 
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            else:
 
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                raise AssertionError('Unknown error from svnlogservice: %s' %
 
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                                     response['error'])
 
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        # No error. We must be safe.
 
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        ctx['path'] = self.path
 
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        ctx['url'] = ivle.util.make_path(os.path.join('svnlog', self.path))
 
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        sr = ivle.svn.revision_from_string(
 
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                   req.get_fieldstorage().getfirst("r"))
 
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        ctx['revno'] = sr.number if sr and \
 
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                       sr.kind == pysvn.opt_revision_kind.number else None
 
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        ctx['logs'] = response['logs']
 
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        # Create URLs for each of the versioned files.
 
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        # XXX: This scheme only works for stuff/!
 
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        for log in ctx['logs']:
 
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            log['date'] = ivle.date.make_date_nice(log['date'])
 
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            for pathaction in log['paths']:
 
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                pathaction.append(ivle.util.make_path(os.path.join('files',
 
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                                  ivle.util.split_path(req.path)[0],
 
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                                  pathaction[0][1:])) + '?r=%d' % log['revno'])
 
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class Plugin(BasePlugin):
 
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    urls = [
 
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        ('/svnlog', SubversionLogView, {'path': ''}),
 
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        ('/svnlog/*path', SubversionLogView),
 
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    ]