a7ae152d9b
Adds configurable middleware in common/djangoapps/embargo that allows specific courses to comply with US Export regulations by embargoing students from specific countries, whilst simultaneously allowing other courses to be freely open to all.
34 lines
1016 B
Python
34 lines
1016 B
Python
""" Utility functions related to HTTP requests """
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from django.conf import settings
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from microsite_configuration.middleware import MicrositeConfiguration
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from track.contexts import COURSE_REGEX
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def safe_get_host(request):
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"""
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Get the host name for this request, as safely as possible.
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If ALLOWED_HOSTS is properly set, this calls request.get_host;
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otherwise, this returns whatever settings.SITE_NAME is set to.
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This ensures we will never accept an untrusted value of get_host()
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"""
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if isinstance(settings.ALLOWED_HOSTS, (list, tuple)) and '*' not in settings.ALLOWED_HOSTS:
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return request.get_host()
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else:
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return MicrositeConfiguration.get_microsite_configuration_value('site_domain', settings.SITE_NAME)
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def course_id_from_url(url):
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"""
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Extracts the course_id from the given `url`.
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"""
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url = url or ''
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match = COURSE_REGEX.match(url)
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course_id = ''
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if match:
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course_id = match.group('course_id') or ''
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return course_id
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