Mercurial > hg > nginx
annotate src/core/ngx_string.h @ 4192:61e4af19df9f
Autoindex: escape '?' in file names.
For files with '?' in their names autoindex generated links with '?' not
escaped. This resulted in effectively truncated links as '?' indicates
query string start.
This is an updated version of the patch originally posted at [1]. It
introduces generic NGX_ESCAPE_URI_COMPONENT which escapes everything but
unreserved characters as per RFC 3986. This approach also renders unneeded
special colon processing (as colon is percent-encoded now), it's dropped
accordingly.
[1] http://nginx.org/pipermail/nginx-devel/2010-February/000112.html
Reported by Konstantin Leonov.
| author | Maxim Dounin <mdounin@mdounin.ru> |
|---|---|
| date | Tue, 11 Oct 2011 17:56:51 +0000 |
| parents | e7798b5e990a |
| children | d620f497c50f |
| rev | line source |
|---|---|
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
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4 */ |
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7 #ifndef _NGX_STRING_H_INCLUDED_ |
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8 #define _NGX_STRING_H_INCLUDED_ |
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9 |
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11 #include <ngx_config.h> |
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12 #include <ngx_core.h> |
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13 |
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14 |
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15 typedef struct { |
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16 size_t len; |
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17 u_char *data; |
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18 } ngx_str_t; |
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19 |
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| 649 | 21 typedef struct { |
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22 ngx_str_t key; |
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23 ngx_str_t value; |
| 649 | 24 } ngx_keyval_t; |
| 25 | |
| 26 | |
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27 typedef struct { |
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28 unsigned len:28; |
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29 |
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30 unsigned valid:1; |
| 1565 | 31 unsigned no_cacheable:1; |
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32 unsigned not_found:1; |
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33 unsigned escape:1; |
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34 |
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35 u_char *data; |
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36 } ngx_variable_value_t; |
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39 #define ngx_string(str) { sizeof(str) - 1, (u_char *) str } |
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40 #define ngx_null_string { 0, NULL } |
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41 #define ngx_str_set(str, text) \ |
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42 (str)->len = sizeof(text) - 1; (str)->data = (u_char *) text |
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43 #define ngx_str_null(str) (str)->len = 0; (str)->data = NULL |
| 477 | 44 |
| 45 | |
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46 #define ngx_tolower(c) (u_char) ((c >= 'A' && c <= 'Z') ? (c | 0x20) : c) |
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47 #define ngx_toupper(c) (u_char) ((c >= 'a' && c <= 'z') ? (c & ~0x20) : c) |
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48 |
| 2135 | 49 void ngx_strlow(u_char *dst, u_char *src, size_t n); |
| 50 | |
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51 |
| 461 | 52 #define ngx_strncmp(s1, s2, n) strncmp((const char *) s1, (const char *) s2, n) |
| 53 | |
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54 |
| 573 | 55 /* msvc and icc7 compile strcmp() to inline loop */ |
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56 #define ngx_strcmp(s1, s2) strcmp((const char *) s1, (const char *) s2) |
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57 |
| 461 | 58 |
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59 #define ngx_strstr(s1, s2) strstr((const char *) s1, (const char *) s2) |
| 2201 | 60 #define ngx_strlen(s) strlen((const char *) s) |
| 61 | |
| 1157 | 62 #define ngx_strchr(s1, c) strchr((const char *) s1, (int) c) |
| 2201 | 63 |
| 64 static ngx_inline u_char * | |
| 65 ngx_strlchr(u_char *p, u_char *last, u_char c) | |
| 66 { | |
| 67 while (p < last) { | |
| 68 | |
| 69 if (*p == c) { | |
| 70 return p; | |
| 71 } | |
| 72 | |
| 73 p++; | |
| 74 } | |
| 75 | |
| 76 return NULL; | |
| 77 } | |
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78 |
| 461 | 79 |
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80 /* |
| 573 | 81 * msvc and icc7 compile memset() to the inline "rep stos" |
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82 * while ZeroMemory() and bzero() are the calls. |
| 573 | 83 * icc7 may also inline several mov's of a zeroed register for small blocks. |
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84 */ |
| 515 | 85 #define ngx_memzero(buf, n) (void) memset(buf, 0, n) |
| 86 #define ngx_memset(buf, c, n) (void) memset(buf, c, n) | |
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87 |
| 461 | 88 |
| 583 | 89 #if (NGX_MEMCPY_LIMIT) |
| 90 | |
| 91 void *ngx_memcpy(void *dst, void *src, size_t n); | |
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92 #define ngx_cpymem(dst, src, n) (((u_char *) ngx_memcpy(dst, src, n)) + (n)) |
| 583 | 93 |
| 94 #else | |
| 95 | |
| 573 | 96 /* |
| 97 * gcc3, msvc, and icc7 compile memcpy() to the inline "rep movs". | |
| 98 * gcc3 compiles memcpy(d, s, 4) to the inline "mov"es. | |
| 99 * icc8 compile memcpy(d, s, 4) to the inline "mov"es or XMM moves. | |
| 100 */ | |
| 515 | 101 #define ngx_memcpy(dst, src, n) (void) memcpy(dst, src, n) |
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102 #define ngx_cpymem(dst, src, n) (((u_char *) memcpy(dst, src, n)) + (n)) |
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103 |
| 583 | 104 #endif |
| 105 | |
| 461 | 106 |
| 573 | 107 #if ( __INTEL_COMPILER >= 800 ) |
| 108 | |
| 109 /* | |
| 110 * the simple inline cycle copies the variable length strings up to 16 | |
| 111 * bytes faster than icc8 autodetecting _intel_fast_memcpy() | |
| 112 */ | |
| 113 | |
| 114 static ngx_inline u_char * | |
| 115 ngx_copy(u_char *dst, u_char *src, size_t len) | |
| 116 { | |
| 117 if (len < 17) { | |
| 118 | |
| 119 while (len) { | |
| 120 *dst++ = *src++; | |
| 121 len--; | |
| 122 } | |
| 123 | |
| 124 return dst; | |
| 125 | |
| 126 } else { | |
| 127 return ngx_cpymem(dst, src, len); | |
| 128 } | |
| 129 } | |
| 130 | |
| 131 #else | |
| 132 | |
| 133 #define ngx_copy ngx_cpymem | |
| 134 | |
| 135 #endif | |
| 136 | |
| 137 | |
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138 #define ngx_memmove(dst, src, n) (void) memmove(dst, src, n) |
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139 #define ngx_movemem(dst, src, n) (((u_char *) memmove(dst, src, n)) + (n)) |
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140 |
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141 |
| 573 | 142 /* msvc and icc7 compile memcmp() to the inline loop */ |
| 1648 | 143 #define ngx_memcmp(s1, s2, n) memcmp((const char *) s1, (const char *) s2, n) |
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| 461 | 145 |
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146 u_char *ngx_cpystrn(u_char *dst, u_char *src, size_t n); |
| 485 | 147 u_char *ngx_pstrdup(ngx_pool_t *pool, ngx_str_t *src); |
| 503 | 148 u_char * ngx_cdecl ngx_sprintf(u_char *buf, const char *fmt, ...); |
| 149 u_char * ngx_cdecl ngx_snprintf(u_char *buf, size_t max, const char *fmt, ...); | |
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150 u_char * ngx_cdecl ngx_slprintf(u_char *buf, u_char *last, const char *fmt, |
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151 ...); |
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152 u_char *ngx_vslprintf(u_char *buf, u_char *last, const char *fmt, va_list args); |
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153 #define ngx_vsnprintf(buf, max, fmt, args) \ |
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154 ngx_vslprintf(buf, buf + (max), fmt, args) |
| 455 | 155 |
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156 ngx_int_t ngx_strcasecmp(u_char *s1, u_char *s2); |
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157 ngx_int_t ngx_strncasecmp(u_char *s1, u_char *s2, size_t n); |
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158 |
| 1552 | 159 u_char *ngx_strnstr(u_char *s1, char *s2, size_t n); |
| 160 | |
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161 u_char *ngx_strstrn(u_char *s1, char *s2, size_t n); |
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162 u_char *ngx_strcasestrn(u_char *s1, char *s2, size_t n); |
| 2668 | 163 u_char *ngx_strlcasestrn(u_char *s1, u_char *last, u_char *s2, size_t n); |
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164 |
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165 ngx_int_t ngx_rstrncmp(u_char *s1, u_char *s2, size_t n); |
| 455 | 166 ngx_int_t ngx_rstrncasecmp(u_char *s1, u_char *s2, size_t n); |
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167 ngx_int_t ngx_memn2cmp(u_char *s1, u_char *s2, size_t n1, size_t n2); |
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168 ngx_int_t ngx_dns_strcmp(u_char *s1, u_char *s2); |
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169 |
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170 ngx_int_t ngx_atoi(u_char *line, size_t n); |
| 3512 | 171 ngx_int_t ngx_atofp(u_char *line, size_t n, size_t point); |
| 501 | 172 ssize_t ngx_atosz(u_char *line, size_t n); |
| 173 off_t ngx_atoof(u_char *line, size_t n); | |
| 174 time_t ngx_atotm(u_char *line, size_t n); | |
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175 ngx_int_t ngx_hextoi(u_char *line, size_t n); |
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176 |
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177 u_char *ngx_hex_dump(u_char *dst, u_char *src, size_t len); |
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174
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178 |
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179 |
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180 #define ngx_base64_encoded_length(len) (((len + 2) / 3) * 4) |
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181 #define ngx_base64_decoded_length(len) (((len + 3) / 4) * 3) |
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182 |
| 452 | 183 void ngx_encode_base64(ngx_str_t *dst, ngx_str_t *src); |
| 184 ngx_int_t ngx_decode_base64(ngx_str_t *dst, ngx_str_t *src); | |
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185 ngx_int_t ngx_decode_base64url(ngx_str_t *dst, ngx_str_t *src); |
| 461 | 186 |
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187 uint32_t ngx_utf8_decode(u_char **p, size_t n); |
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188 size_t ngx_utf8_length(u_char *p, size_t n); |
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189 u_char *ngx_utf8_cpystrn(u_char *dst, u_char *src, size_t n, size_t len); |
| 527 | 190 |
| 461 | 191 |
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192 #define NGX_ESCAPE_URI 0 |
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193 #define NGX_ESCAPE_ARGS 1 |
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194 #define NGX_ESCAPE_URI_COMPONENT 2 |
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195 #define NGX_ESCAPE_HTML 3 |
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196 #define NGX_ESCAPE_REFRESH 4 |
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197 #define NGX_ESCAPE_MEMCACHED 5 |
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198 #define NGX_ESCAPE_MAIL_AUTH 6 |
| 601 | 199 |
| 1593 | 200 #define NGX_UNESCAPE_URI 1 |
| 201 #define NGX_UNESCAPE_REDIRECT 2 | |
| 461 | 202 |
| 485 | 203 uintptr_t ngx_escape_uri(u_char *dst, u_char *src, size_t size, |
| 493 | 204 ngx_uint_t type); |
| 601 | 205 void ngx_unescape_uri(u_char **dst, u_char **src, size_t size, ngx_uint_t type); |
| 1544 | 206 uintptr_t ngx_escape_html(u_char *dst, u_char *src, size_t size); |
| 207 | |
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208 |
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209 typedef struct { |
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210 ngx_rbtree_node_t node; |
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211 ngx_str_t str; |
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212 } ngx_str_node_t; |
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213 |
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214 |
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215 void ngx_str_rbtree_insert_value(ngx_rbtree_node_t *temp, |
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216 ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel); |
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217 ngx_str_node_t *ngx_str_rbtree_lookup(ngx_rbtree_t *rbtree, ngx_str_t *name, |
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218 uint32_t hash); |
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219 |
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220 |
| 1208 | 221 void ngx_sort(void *base, size_t n, size_t size, |
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222 ngx_int_t (*cmp)(const void *, const void *)); |
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223 #define ngx_qsort qsort |
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224 |
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225 |
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226 #define ngx_value_helper(n) #n |
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227 #define ngx_value(n) ngx_value_helper(n) |
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228 |
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229 |
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230 #endif /* _NGX_STRING_H_INCLUDED_ */ |