mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-01-31 11:37:35 +00:00
09bcfa23d5
- lua server pages - lua http library - http v0.9 support - request uri parsing - fork failure recovery - accelerated redirects - http pipelining support - lenient message framing - html / uri / js escaping - fix shutdown signal handling
81 lines
2.9 KiB
C
81 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 2021 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/x/x.h"
|
|
#include "net/http/escape.h"
|
|
|
|
/**
|
|
* Escapes HTML entities.
|
|
*/
|
|
struct EscapeResult EscapeHtml(const char *data, size_t size) {
|
|
int c;
|
|
char *p;
|
|
size_t i;
|
|
struct EscapeResult r;
|
|
p = r.data = xmalloc(size * 6 + 1);
|
|
for (i = 0; i < size; ++i) {
|
|
switch ((c = data[i])) {
|
|
case '&':
|
|
p[0] = '&';
|
|
p[1] = 'a';
|
|
p[2] = 'm';
|
|
p[3] = 'p';
|
|
p[4] = ';';
|
|
p += 5;
|
|
break;
|
|
case '<':
|
|
p[0] = '&';
|
|
p[1] = 'l';
|
|
p[2] = 't';
|
|
p[3] = ';';
|
|
p += 4;
|
|
break;
|
|
case '>':
|
|
p[0] = '&';
|
|
p[1] = 'g';
|
|
p[2] = 't';
|
|
p[3] = ';';
|
|
p += 4;
|
|
break;
|
|
case '"':
|
|
p[0] = '&';
|
|
p[1] = 'q';
|
|
p[2] = 'u';
|
|
p[3] = 'o';
|
|
p[4] = 't';
|
|
p[5] = ';';
|
|
p += 6;
|
|
break;
|
|
case '\'':
|
|
p[0] = '&';
|
|
p[1] = '#';
|
|
p[2] = '3';
|
|
p[3] = '9';
|
|
p[4] = ';';
|
|
p += 5;
|
|
break;
|
|
default:
|
|
*p++ = c;
|
|
break;
|
|
}
|
|
}
|
|
r.size = p - r.data;
|
|
r.data = xrealloc(r.data, r.size + 1);
|
|
r.data[r.size] = '\0';
|
|
return r;
|
|
}
|