cosmopolitan/net/http/parsehttpmethod.c
Justine Tunney ad3944a3b6
Support any HTTP method
It's now possible to use redbean Fetch() with arbitrary HTTP methods,
e.g. LIST which is used by Hashicorp. There's an eight char limit and
uppercase canonicalization still happens. This change also includes a
better function for launching a browser tab, that won't deadlock on a
headless workstation running Debian.

Closes #1107
2024-02-22 14:12:18 -08:00

44 lines
2.4 KiB
C

/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi │
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/str/str.h"
#include "libc/str/tab.internal.h"
#include "net/http/http.h"
/**
* Converts HTTP method to word encoding.
*
* For example, `ParseHttpMethod("GET", -1)` will return `kHttpGet`.
*
* @param len if -1 implies strlen
* @return word encoded method, or 0 if invalid
*/
uint64_t ParseHttpMethod(const char *str, size_t len) {
int s = 0;
uint64_t w = 0;
if (len == -1) len = str ? strlen(str) : 0;
for (size_t i = 0; i < len; ++i) {
int c = kToUpper[str[i] & 255];
if (!kHttpToken[c]) return 0;
if (s == 64) return 0;
w |= (uint64_t)c << s;
s += 8;
}
return w;
}