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# Copyright 2009 Canonical Ltd. This software is licensed under the
# GNU Affero General Public License version 3 (see the file LICENSE).
"""CVE views."""
__metaclass__ = type
__all__ = [
'CveContextMenu',
'CveLinkView',
'CveSetContextMenu',
'CveSetNavigation',
'CveSetView',
'CveUnlinkView',
]
from zope.component import getUtility
from canonical.launchpad.webapp import (
canonical_url,
ContextMenu,
GetitemNavigation,
Link,
)
from canonical.launchpad.webapp.batching import BatchNavigator
from lp.app.browser.launchpadform import (
action,
LaunchpadFormView,
)
from lp.app.validators.cve import valid_cve
from lp.bugs.interfaces.cve import (
ICve,
ICveSet,
)
class CveSetNavigation(GetitemNavigation):
usedfor = ICveSet
class CveContextMenu(ContextMenu):
usedfor = ICve
links = ['linkbug', 'unlinkbug']
def linkbug(self):
text = 'Link to bug'
return Link('+linkbug', text, icon='edit')
def unlinkbug(self):
enabled = bool(self.context.bugs)
text = 'Remove bug link'
return Link('+unlinkbug', text, icon='edit', enabled=enabled)
class CveSetContextMenu(ContextMenu):
usedfor = ICveSet
links = ['findcve', 'allcve']
def allcve(self):
text = 'All registered CVEs'
return Link('+all', text)
def findcve(self):
text = 'Find CVEs'
summary = 'Find CVEs in Launchpad'
return Link('', text, summary)
class CveLinkView(LaunchpadFormView):
"""This view will be used for objects that can be linked to a CVE,
currently that is only IBug.
"""
schema = ICve
field_names = ['sequence']
def validate(self, data):
sequence = data.get('sequence')
if sequence is None:
# Don't attempt to look up this CVE; its number is not valid.
return
cve = getUtility(ICveSet)[sequence]
if cve is None:
self.addError('%s is not a known CVE sequence number.' % sequence)
@action('Continue', name='continue')
def continue_action(self, action, data):
cve = getUtility(ICveSet)[data['sequence']]
self.context.bug.linkCVE(cve, self.user)
self.request.response.addInfoNotification(
'CVE-%s added.' % data['sequence'])
label = 'Link to CVE report'
page_title = label
@property
def next_url(self):
return canonical_url(self.context)
cancel_url = next_url
class CveUnlinkView(CveLinkView):
"""This view is used to unlink a CVE from a bug."""
@action('Continue', name='continue')
def continue_action(self, action, data):
cve = getUtility(ICveSet)[data['sequence']]
self.context.bug.unlinkCVE(cve, self.user)
self.request.response.addInfoNotification(
'CVE-%s removed.' % data['sequence'])
@property
def label(self):
return 'Bug # %s Remove link to CVE report' % self.context.bug.id
page_title = label
heading = 'Remove links to bug reports'
class CveSetView:
def __init__(self, context, request):
self.context = context
self.request = request
self.notices = []
self.results = None
self.text = self.request.form.get('text', None)
self.searchrequested = False
if self.text:
self.pre_search()
label = 'Launchpad CVE tracker'
page_title = label
def getAllBatched(self):
return BatchNavigator(self.context.getAll(), self.request)
def pre_search(self):
# see if we have an exact match, and redirect if so; otherwise,
# do a search for it.
sequence = self.text
if sequence[:4].lower() in ['cve-', 'can-']:
sequence = sequence[4:].strip()
if valid_cve(sequence):
# try to find the CVE, and redirect to it if we do
cveset = getUtility(ICveSet)
cve = cveset[sequence]
if cve:
self.request.response.redirect(canonical_url(cve))
self.searchrequested = True
def searchresults(self):
"""Use searchtext to find the list of Products that match
and then present those as a list. Only do this the first
time the method is called, otherwise return previous results.
"""
if self.results is None:
self.results = self.context.search(text=self.text)
self.matches = self.results.count()
return self.results
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