Make str.format_map with untrusted input safer (#2931)

This commit is contained in:
Raphael Michel
2022-12-08 13:49:07 +01:00
committed by GitHub
parent 11eecd739d
commit b64c5735a8
12 changed files with 89 additions and 42 deletions

View File

@@ -52,12 +52,12 @@ from pretix.base.email import get_available_placeholders
from pretix.base.i18n import LazyI18nString, language
from pretix.base.models import Checkin, LogEntry, Order, OrderPosition
from pretix.base.models.event import SubEvent
from pretix.base.services.mail import TolerantDict
from pretix.base.templatetags.rich_text import markdown_compile_email
from pretix.control.permissions import EventPermissionRequiredMixin
from pretix.control.views import CreateView, PaginationMixin, UpdateView
from pretix.plugins.sendmail.tasks import send_mails
from ...helpers.format import format_map
from . import forms
from .models import Rule, ScheduledMail
@@ -203,7 +203,7 @@ class SenderView(EventPermissionRequiredMixin, FormView):
if self.request.POST.get("action") != "send":
for l in self.request.event.settings.locales:
with language(l, self.request.event.settings.region):
context_dict = TolerantDict()
context_dict = {}
for k, v in get_available_placeholders(self.request.event, ['event', 'order',
'position_or_address']).items():
context_dict[k] = '<span class="placeholder" title="{}">{}</span>'.format(
@@ -212,9 +212,9 @@ class SenderView(EventPermissionRequiredMixin, FormView):
)
subject = bleach.clean(form.cleaned_data['subject'].localize(l), tags=[])
preview_subject = subject.format_map(context_dict)
preview_subject = format_map(subject, context_dict)
message = form.cleaned_data['message'].localize(l)
preview_text = markdown_compile_email(message.format_map(context_dict))
preview_text = markdown_compile_email(format_map(message, context_dict))
self.output[l] = {
'subject': _('Subject: {subject}').format(subject=preview_subject),
@@ -350,7 +350,7 @@ class CreateRule(EventPermissionRequiredMixin, CreateView):
if self.request.POST.get("action") == "preview":
for l in self.request.event.settings.locales:
with language(l, self.request.event.settings.region):
context_dict = TolerantDict()
context_dict = {}
for k, v in get_available_placeholders(self.request.event, ['event', 'order',
'position_or_address']).items():
context_dict[k] = '<span class="placeholder" title="{}">{}</span>'.format(
@@ -359,9 +359,9 @@ class CreateRule(EventPermissionRequiredMixin, CreateView):
)
subject = bleach.clean(form.cleaned_data['subject'].localize(l), tags=[])
preview_subject = subject.format_map(context_dict)
preview_subject = format_map(subject, context_dict)
template = form.cleaned_data['template'].localize(l)
preview_text = markdown_compile_email(template.format_map(context_dict))
preview_text = markdown_compile_email(format_map(template, context_dict))
self.output[l] = {
'subject': _('Subject: {subject}').format(subject=preview_subject),
@@ -427,7 +427,7 @@ class UpdateRule(EventPermissionRequiredMixin, UpdateView):
for lang in self.request.event.settings.locales:
with language(lang, self.request.event.settings.region):
placeholders = TolerantDict()
placeholders = {}
for k, v in get_available_placeholders(self.request.event, ['event', 'order', 'position_or_address']).items():
placeholders[k] = '<span class="placeholder" title="{}">{}</span>'.format(
_('This value will be replaced based on dynamic parameters.'),
@@ -435,9 +435,9 @@ class UpdateRule(EventPermissionRequiredMixin, UpdateView):
)
subject = bleach.clean(self.object.subject.localize(lang), tags=[])
preview_subject = subject.format_map(placeholders)
preview_subject = format_map(subject, placeholders)
template = self.object.template.localize(lang)
preview_text = markdown_compile_email(template.format_map(placeholders))
preview_text = markdown_compile_email(format_map(template, placeholders))
o[lang] = {
'subject': _('Subject: {subject}'.format(subject=preview_subject)),