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31 lines
1.4 KiB
Python
31 lines
1.4 KiB
Python
from django.http import HttpRequest, HttpResponse
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from django.utils.translation import gettext as _
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from zerver.lib.compatibility import find_mobile_os, version_lt
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from zerver.lib.exceptions import JsonableError
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from zerver.lib.response import json_success
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from zerver.lib.user_agent import parse_user_agent
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# Zulip Mobile release 16.2.96 was made 2018-08-22. It fixed a
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# bug in our Android code that causes spammy, obviously-broken
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# notifications once the "remove_push_notification" feature is
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# enabled on the user's Zulip server.
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android_min_app_version = "16.2.96"
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def check_global_compatibility(request: HttpRequest) -> HttpResponse:
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if "User-Agent" not in request.headers:
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raise JsonableError(_("User-Agent header missing from request"))
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# This string should not be tagged for translation, since old
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# clients are checking for an extra string.
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legacy_compatibility_error_message = "Client is too old"
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user_agent = parse_user_agent(request.headers["User-Agent"])
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if user_agent["name"] == "ZulipInvalid":
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raise JsonableError(legacy_compatibility_error_message)
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if user_agent["name"] == "ZulipMobile":
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user_os = find_mobile_os(request.headers["User-Agent"])
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if user_os == "android" and version_lt(user_agent["version"], android_min_app_version):
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raise JsonableError(legacy_compatibility_error_message)
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return json_success(request)
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