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Add header check for CSRF

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This commit is contained in:
Omar Roth 2018-09-05 20:32:01 -05:00
parent 62f023c50f
commit a749ac73ac
1 changed files with 12 additions and 0 deletions
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12
src/invidious.cr
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@ -106,6 +106,18 @@ spawn do
end end
before_all do |env| before_all do |env|
# CSRF
if Kemal.config.ssl || CONFIG.https_only
host = env.request.headers["Host"]?
if (env.request.headers["Origin"]?.try &.== host) ||
(env.request.headers["Referer"]?.try &.== host)
# All good!
else
halt env, status_code: 403, response: "Failed CSRF check"
end
end
if env.request.cookies.has_key? "SID" if env.request.cookies.has_key? "SID"
headers = HTTP::Headers.new headers = HTTP::Headers.new
headers["Cookie"] = env.request.headers["Cookie"] headers["Cookie"] = env.request.headers["Cookie"]