47 lines
1.5 KiB
Python
47 lines
1.5 KiB
Python
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"""
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Wrapper for loading templates from the filesystem.
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"""
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from django.core.exceptions import SuspiciousFileOperation
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from django.template import Origin, TemplateDoesNotExist
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from django.utils._os import safe_join
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from .base import Loader as BaseLoader
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class Loader(BaseLoader):
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def __init__(self, engine, dirs=None):
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super().__init__(engine)
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self.dirs = dirs
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def get_dirs(self):
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return self.dirs if self.dirs is not None else self.engine.dirs
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def get_contents(self, origin):
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try:
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with open(origin.name, encoding=self.engine.file_charset) as fp:
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return fp.read()
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except FileNotFoundError:
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raise TemplateDoesNotExist(origin)
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def get_template_sources(self, template_name):
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"""
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Return an Origin object pointing to an absolute path in each directory
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in template_dirs. For security reasons, if a path doesn't lie inside
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one of the template_dirs it is excluded from the result set.
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"""
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for template_dir in self.get_dirs():
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try:
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name = safe_join(template_dir, template_name)
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except SuspiciousFileOperation:
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# The joined path was located outside of this template_dir
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# (it might be inside another one, so this isn't fatal).
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continue
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yield Origin(
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name=name,
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template_name=template_name,
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loader=self,
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)
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