52 lines
1.7 KiB
Python
52 lines
1.7 KiB
Python
import string
|
|
|
|
from django.core.exceptions import ImproperlyConfigured
|
|
from django.template import Origin, TemplateDoesNotExist
|
|
from django.utils.html import conditional_escape
|
|
|
|
from .base import BaseEngine
|
|
from .utils import csrf_input_lazy, csrf_token_lazy
|
|
|
|
|
|
class TemplateStrings(BaseEngine):
|
|
app_dirname = "template_strings"
|
|
|
|
def __init__(self, params):
|
|
params = params.copy()
|
|
options = params.pop("OPTIONS").copy()
|
|
if options:
|
|
raise ImproperlyConfigured("Unknown options: {}".format(", ".join(options)))
|
|
super().__init__(params)
|
|
|
|
def from_string(self, template_code):
|
|
return Template(template_code)
|
|
|
|
def get_template(self, template_name):
|
|
tried = []
|
|
for template_file in self.iter_template_filenames(template_name):
|
|
try:
|
|
with open(template_file, encoding="utf-8") as fp:
|
|
template_code = fp.read()
|
|
except FileNotFoundError:
|
|
tried.append(
|
|
(
|
|
Origin(template_file, template_name, self),
|
|
"Source does not exist",
|
|
)
|
|
)
|
|
else:
|
|
return Template(template_code)
|
|
raise TemplateDoesNotExist(template_name, tried=tried, backend=self)
|
|
|
|
|
|
class Template(string.Template):
|
|
def render(self, context=None, request=None):
|
|
if context is None:
|
|
context = {}
|
|
else:
|
|
context = {k: conditional_escape(v) for k, v in context.items()}
|
|
if request is not None:
|
|
context["csrf_input"] = csrf_input_lazy(request)
|
|
context["csrf_token"] = csrf_token_lazy(request)
|
|
return self.safe_substitute(context)
|