e2bfcf2a36
This commit updates common/djangoapps. These keys are now objects with a limited interface, and the particular internal representation is managed by the data storage layer (the modulestore). For the LMS, there should be no outward-facing changes to the system. The keys are, for now, a change to internal representation only. For Studio, the new serialized form of the keys is used in urls, to allow for further migration in the future. Co-Author: Andy Armstrong <andya@edx.org> Co-Author: Christina Roberts <christina@edx.org> Co-Author: David Baumgold <db@edx.org> Co-Author: Diana Huang <dkh@edx.org> Co-Author: Don Mitchell <dmitchell@edx.org> Co-Author: Julia Hansbrough <julia@edx.org> Co-Author: Nimisha Asthagiri <nasthagiri@edx.org> Co-Author: Sarina Canelake <sarina@edx.org> [LMS-2370]
44 lines
1.2 KiB
Python
44 lines
1.2 KiB
Python
""" Utility functions related to HTTP requests """
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import re
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from django.conf import settings
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from microsite_configuration import microsite
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from xmodule.modulestore.locations import SlashSeparatedCourseKey
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COURSE_REGEX = re.compile(r'^.*?/courses/(?P<course_id>[^/]+/[^/]+/[^/]+)')
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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 microsite.get_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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if not url:
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return None
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match = COURSE_REGEX.match(url)
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if match is None:
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return None
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course_id = match.group('course_id')
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if course_id is None:
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return None
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return SlashSeparatedCourseKey.from_deprecated_string(course_id)
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