cosmopolitan/net/http/isnocompressext.c
Justine Tunney f7ff77d865
Make fixes and improvements
- Invent iso8601us() for faster timestamps
- Improve --strace descriptions of sigset_t
- Rebuild the Landlock Make bootstrap binary
- Introduce MODE=sysv for non-Windows builds
- Permit OFD fcntl() locks under pledge(flock)
- redbean can now protect your kernel from ddos
- Have vfork() fallback to sys_fork() not fork()
- Change kmalloc() to not die when out of memory
- Improve documentation for some termios functions
- Rewrite putenv() and friends to conform to POSIX
- Fix linenoise + strace verbosity issue on Windows
- Fix regressions in our ability to show backtraces
- Change redbean SetHeader() to no-op if value is nil
- Improve fcntl() so SQLite locks work in non-WAL mode
- Remove some unnecessary work during fork() on Windows
- Create redbean-based SSL reverse proxy for IPv4 TurfWar
- Fix ape/apeinstall.sh warning when using non-bash shells
- Add ProgramTrustedIp(), and IsTrustedIp() APIs to redbean
- Support $PWD, $UID, $GID, and $EUID in command interpreter
- Introduce experimental JTqFpD APE prefix for non-Windows builds
- Invent blackhole daemon for firewalling IP addresses via UNIX named socket
- Add ProgramTokenBucket(), AcquireToken(), and CountTokens() APIs to redbean
2022-10-19 07:19:19 -07:00

73 lines
2.9 KiB
C

/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2022 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/intrin/bits.h"
#include "libc/intrin/bswap.h"
#include "libc/macros.internal.h"
#include "libc/str/str.h"
#include "libc/str/tab.internal.h"
#include "net/http/http.h"
static const char kNoCompressExts[][8] = {
"bz2", //
"gif", //
"gz", //
"jpg", //
"lz4", //
"mp4", //
"mpeg", //
"mpg", //
"png", //
"webp", //
"xz", //
"zip", //
};
static bool BisectNoCompressExts(uint64_t ext) {
int c, m, l, r;
l = 0;
r = ARRAYLEN(kNoCompressExts) - 1;
while (l <= r) {
m = (l + r) >> 1;
if (READ64BE(kNoCompressExts[m]) < ext) {
l = m + 1;
} else if (READ64BE(kNoCompressExts[m]) > ext) {
r = m - 1;
} else {
return true;
}
}
return false;
}
bool IsNoCompressExt(const char *p, size_t n) {
int c, i;
uint64_t w;
if (n == -1) n = p ? strlen(p) : 0;
if (n) {
for (i = w = 0; n--;) {
c = p[n] & 255;
if (c == '.') break;
if (++i > 8) return false;
w <<= 8;
w |= kToLower[c];
}
return BisectNoCompressExts(bswap_64(w));
}
return false;
}