mirror of
https://github.com/nginx/nginx.git
synced 2024-12-15 13:28:59 +08:00
924bd79e31
*) Feature: the gzip_types directive.
*) Feature: the tcp_nodelay directive.
*) Feature: the send_lowat directive is working not only on OSes that
support kqueue NOTE_LOWAT, but also on OSes that support SO_SNDLOWAT.
*) Feature: the setproctitle() emulation for Linux and Solaris.
*) Bugfix: the "Location" header rewrite bug fixed while the proxying.
*) Bugfix: the ngx_http_chunked_module module may get caught in an
endless loop.
*) Bugfix: the /dev/poll module bugs fixed.
*) Bugfix: the responses were corrupted when the temporary files were
used while the proxying.
*) Bugfix: the unescaped requests were passed to the backend.
*) Bugfix: while the build configuration on Linux 2.4 the
--with-poll_module parameter was required.
286 lines
6.4 KiB
C
286 lines
6.4 KiB
C
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/*
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* Copyright (C) Igor Sysoev
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*/
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#include <ngx_config.h>
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#include <ngx_core.h>
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u_char *ngx_cpystrn(u_char *dst, u_char *src, size_t n)
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{
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if (n == 0) {
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return dst;
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}
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for (/* void */; --n; dst++, src++) {
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*dst = *src;
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if (*dst == '\0') {
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return dst;
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}
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}
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*dst = '\0';
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return dst;
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}
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ngx_int_t ngx_rstrncmp(u_char *s1, u_char *s2, size_t n)
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{
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if (n == 0) {
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return 0;
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}
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n--;
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for ( ;; ) {
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if (s1[n] != s2[n]) {
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return s1[n] - s2[n];
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}
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if (n == 0) {
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return 0;
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}
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n--;
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}
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}
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ngx_int_t ngx_atoi(u_char *line, size_t n)
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{
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ngx_int_t value;
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if (n == 0) {
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return NGX_ERROR;
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}
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for (value = 0; n--; line++) {
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if (*line < '0' || *line > '9') {
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return NGX_ERROR;
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}
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value = value * 10 + (*line - '0');
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}
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if (value < 0) {
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return NGX_ERROR;
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} else {
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return value;
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}
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}
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ngx_int_t ngx_hextoi(u_char *line, size_t n)
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{
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u_char ch;
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ngx_int_t value;
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if (n == 0) {
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return NGX_ERROR;
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}
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for (value = 0; n--; line++) {
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ch = *line;
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if (ch >= '0' && ch <= '9') {
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value = value * 16 + (ch - '0');
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continue;
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}
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if (ch >= 'A' && ch <= 'F') {
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value = value * 16 + (ch - 'A' + 10);
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continue;
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}
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if (ch >= 'a' && ch <= 'f') {
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value = value * 16 + (ch - 'a' + 10);
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continue;
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}
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return NGX_ERROR;
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}
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if (value < 0) {
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return NGX_ERROR;
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} else {
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return value;
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}
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}
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void ngx_md5_text(u_char *text, u_char *md5)
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{
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int i;
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static u_char hex[] = "0123456789abcdef";
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for (i = 0; i < 16; i++) {
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*text++ = hex[md5[i] >> 4];
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*text++ = hex[md5[i] & 0xf];
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}
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*text = '\0';
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}
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void ngx_encode_base64(ngx_str_t *dst, ngx_str_t *src)
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{
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u_char *d, *s;
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size_t len;
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static u_char basis64[] =
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"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
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len = src->len;
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s = src->data;
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d = dst->data;
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while (len > 2) {
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*d++ = basis64[(s[0] >> 2) & 0x3f];
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*d++ = basis64[((s[0] & 3) << 4) | (s[1] >> 4)];
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*d++ = basis64[((s[1] & 0x0f) << 2) | (s[2] >> 6)];
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*d++ = basis64[s[2] & 0x3f];
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s += 3;
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len -= 3;
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}
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if (len) {
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*d++ = basis64[(s[0] >> 2) & 0x3f];
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if (len == 1) {
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*d++ = basis64[(s[0] & 3) << 4];
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*d++ = '=';
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} else {
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*d++ = basis64[((s[0] & 3) << 4) | (s[1] >> 4)];
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*d++ = basis64[(s[1] & 0x0f) << 2];
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}
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*d++ = '=';
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}
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dst->len = d - dst->data;
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}
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ngx_int_t ngx_decode_base64(ngx_str_t *dst, ngx_str_t *src)
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{
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size_t len;
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u_char *d, *s;
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static u_char basis64[] =
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{ 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
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77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
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77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 62, 77, 77, 77, 63,
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52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 77, 77, 77, 77, 77, 77,
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77, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
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15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 77, 77, 77, 77, 77,
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77, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
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41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 77, 77, 77, 77, 77,
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77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
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77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
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77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
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77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
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77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
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77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
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77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
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77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77 };
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for (len = 0; len < src->len; len++) {
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if (src->data[len] == '=') {
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break;
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}
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if (basis64[src->data[len]] == 77) {
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return NGX_ERROR;
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}
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}
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if (len % 4 == 1) {
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return NGX_ERROR;
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}
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s = src->data;
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d = dst->data;
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while (len > 3) {
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*d++ = (u_char) (basis64[s[0]] << 2 | basis64[s[1]] >> 4);
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*d++ = (u_char) (basis64[s[1]] << 4 | basis64[s[2]] >> 2);
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*d++ = (u_char) (basis64[s[2]] << 6 | basis64[s[3]]);
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s += 4;
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len -= 4;
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}
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if (len > 1) {
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*d++ = (u_char) (basis64[s[0]] << 2 | basis64[s[1]] >> 4);
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}
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if (len > 2) {
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*d++ = (u_char) (basis64[s[1]] << 4 | basis64[s[2]] >> 2);
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}
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dst->len = d - dst->data;
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return NGX_OK;
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}
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ngx_int_t ngx_escape_uri(u_char *dst, u_char *src, size_t size)
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{
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ngx_int_t n;
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ngx_uint_t i;
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static u_char hex[] = "0123456789abcdef";
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static uint32_t escape[] =
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{ 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
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/* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */
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0x80000021, /* 1000 0000 0000 0000 0000 0000 0010 0001 */
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/* _^]\ [ZYX WVUT SRQP ONML KJIH GFED CBA@ */
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0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
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/* ~}| {zyx wvut srqp onml kjih gfed cba` */
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0x80000000, /* 1000 0000 0000 0000 0000 0000 0000 0000 */
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0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
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0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
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0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
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0xffffffff /* 1111 1111 1111 1111 1111 1111 1111 1111 */ };
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if (dst == NULL) {
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/* find the number of the characters to be escaped */
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n = 0;
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for (i = 0; i < size; i++) {
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if (escape[*src >> 5] & (1 << (*src & 0x1f))) {
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n++;
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}
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src++;
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}
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return n;
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}
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for (i = 0; i < size; i++) {
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if (escape[*src >> 5] & (1 << (*src & 0x1f))) {
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*dst++ = '%';
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*dst++ = hex[*src >> 4];
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*dst++ = hex[*src & 0xf];
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src++;
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} else {
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*dst++ = *src++;
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}
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}
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return NGX_OK;
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}
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