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Core: use uppercase hexadecimal digits for percent-encoding.

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RFC3986 says that, for consistency, URI producers and normalizers
should use uppercase hexadecimal digits for all percent-encodings.

This is also what modern web browsers and other tools use.

Using lowercase hexadecimal digits makes it harder to interact with
those tools in case when use of the percent-encoded URI is required,
for example when $request_uri is part of the cache key.

Signed-off-by: Piotr Sikora <piotr@cloudflare.com>
This commit is contained in:
Piotr Sikora 2014-06-26 23:39:23 -07:00
parent c54899ddfd
commit 3ba8f2f73d
1 changed files with 1 additions and 1 deletions
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src/core/ngx_string.c
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@ -1407,7 +1407,7 @@ ngx_escape_uri(u_char *dst, u_char *src, size_t size, ngx_uint_t type)
{ {
ngx_uint_t n; ngx_uint_t n;
uint32_t *escape; uint32_t *escape;
static u_char hex[] = "0123456789abcdef"; static u_char hex[] = "0123456789ABCDEF";
/* " ", "#", "%", "?", %00-%1F, %7F-%FF */ /* " ", "#", "%", "?", %00-%1F, %7F-%FF */