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Allow .well-known/ hidden paths (#499)

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Paul Kulchenko 2022-07-20 23:26:49 -07:00 • committed by GitHub
parent 7e2eae5c15
commit 439ad21b12
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1 changed files with 5 additions and 1 deletions
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6
net/http/isacceptablepath.c
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@ -26,6 +26,7 @@
* *
* 1. The substring "//" is disallowed. * 1. The substring "//" is disallowed.
* 2. We won't serve hidden files (segment starts with '.'). * 2. We won't serve hidden files (segment starts with '.').
* The only exception is `/.well-known/`.
* 3. We won't serve paths with segments equal to "." or "..". * 3. We won't serve paths with segments equal to "." or "..".
* *
* It is assumed that the URI parser already took care of percent * It is assumed that the URI parser already took care of percent
@ -66,7 +67,10 @@ bool IsAcceptablePath(const char *data, size_t size) {
x = '/'; x = '/';
} }
if (y == '/') { if (y == '/') {
if (x == '.') return false; if (x == '.' && // allow /.well-known/ in the first position
(p - data > 2 ||
size < 13 ||
memcmp(data, "/.well-known/", 13) != 0)) return false;
if (x == '/' && t) return false; if (x == '/' && t) return false;
} }
y = x; y = x;