File: | lwan-mod-rewrite.c |
Warning: | line 567, column 5 Attempt to free released memory |
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1 | /* | ||||
2 | * lwan - simple web server | ||||
3 | * Copyright (c) 2015 Leandro A. F. Pereira <leandro@hardinfo.org> | ||||
4 | * | ||||
5 | * This program is free software; you can redistribute it and/or | ||||
6 | * modify it under the terms of the GNU General Public License | ||||
7 | * as published by the Free Software Foundation; either version 2 | ||||
8 | * of the License, or any later version. | ||||
9 | * | ||||
10 | * This program is distributed in the hope that it will be useful, | ||||
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||||
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||||
13 | * GNU General Public License for more details. | ||||
14 | * | ||||
15 | * You should have received a copy of the GNU General Public License | ||||
16 | * along with this program; if not, write to the Free Software | ||||
17 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, | ||||
18 | * USA. | ||||
19 | */ | ||||
20 | |||||
21 | #define _GNU_SOURCE | ||||
22 | #include <ctype.h> | ||||
23 | #include <limits.h> | ||||
24 | #include <stdlib.h> | ||||
25 | #include <string.h> | ||||
26 | #include <sys/stat.h> | ||||
27 | |||||
28 | #include "lwan-private.h" | ||||
29 | |||||
30 | #include "patterns.h" | ||||
31 | #include "lwan-array.h" | ||||
32 | #include "lwan-mod-rewrite.h" | ||||
33 | #include "lwan-strbuf.h" | ||||
34 | |||||
35 | #ifdef HAVE_LUA | ||||
36 | #include <lauxlib.h> | ||||
37 | #include <lua.h> | ||||
38 | #include <lualib.h> | ||||
39 | |||||
40 | #include "lwan-lua.h" | ||||
41 | #endif | ||||
42 | |||||
43 | enum pattern_flag { | ||||
44 | PATTERN_HANDLE_REWRITE = 1 << 0, | ||||
45 | PATTERN_HANDLE_REDIRECT = 1 << 1, | ||||
46 | PATTERN_HANDLE_MASK = PATTERN_HANDLE_REWRITE | PATTERN_HANDLE_REDIRECT, | ||||
47 | |||||
48 | PATTERN_EXPAND_LWAN = 1 << 2, | ||||
49 | PATTERN_EXPAND_LUA = 1 << 3, | ||||
50 | PATTERN_EXPAND_MASK = PATTERN_EXPAND_LWAN | PATTERN_EXPAND_LUA, | ||||
51 | |||||
52 | PATTERN_COND_COOKIE = 1 << 4, | ||||
53 | PATTERN_COND_ENV_VAR = 1 << 5, | ||||
54 | PATTERN_COND_STAT = 1 << 6, | ||||
55 | PATTERN_COND_QUERY_VAR = 1 << 7, | ||||
56 | PATTERN_COND_POST_VAR = 1 << 8, | ||||
57 | PATTERN_COND_HEADER = 1 << 9, | ||||
58 | PATTERN_COND_LUA = 1 << 10, | ||||
59 | PATTERN_COND_METHOD = 1 << 11, | ||||
60 | PATTERN_COND_MASK = PATTERN_COND_COOKIE | PATTERN_COND_ENV_VAR | | ||||
61 | PATTERN_COND_STAT | PATTERN_COND_QUERY_VAR | | ||||
62 | PATTERN_COND_POST_VAR | PATTERN_COND_HEADER | | ||||
63 | PATTERN_COND_LUA | PATTERN_COND_METHOD, | ||||
64 | }; | ||||
65 | |||||
66 | struct pattern { | ||||
67 | char *pattern; | ||||
68 | char *expand_pattern; | ||||
69 | struct { | ||||
70 | struct lwan_key_value cookie, env_var, query_var, post_var, header, method; | ||||
71 | struct { | ||||
72 | char *path; | ||||
73 | unsigned int has_is_file : 1; | ||||
74 | unsigned int has_is_dir : 1; | ||||
75 | unsigned int is_file : 1; | ||||
76 | unsigned int is_dir : 1; | ||||
77 | } stat; | ||||
78 | struct { | ||||
79 | char *script; | ||||
80 | } lua; | ||||
81 | } condition; | ||||
82 | enum pattern_flag flags; | ||||
83 | }; | ||||
84 | |||||
85 | DEFINE_ARRAY_TYPE(pattern_array, struct pattern)struct pattern_array { struct lwan_array base; }; __attribute__ ((unused)) static inline struct pattern *pattern_array_append ( struct pattern_array *array) { return (struct pattern *)lwan_array_append_heap (&array->base, sizeof(struct pattern)); } __attribute__ ((unused)) static inline struct pattern_array *coro_pattern_array_new (struct coro *coro) { return (struct pattern_array *)coro_lwan_array_new (coro, 0); } __attribute__((unused)) static inline struct pattern *pattern_array_get_array(struct pattern_array *array) { return (struct pattern *)array->base.base; } __attribute__((unused )) __attribute__((nonnull(1))) static inline void pattern_array_init ( struct pattern_array *array) { array->base = (struct lwan_array ){.base = ((void*)0), .elements = 0}; } __attribute__((unused )) static inline int pattern_array_reset( struct pattern_array *array) { return lwan_array_reset(&array->base, ((void *)0)); } __attribute__((unused)) static inline struct pattern *pattern_array_append0(struct pattern_array *array) { struct pattern *element = pattern_array_append(array); if (element) memset(element, 0, sizeof(*element)); return element; } __attribute__ ((unused)) static inline void pattern_array_sort( struct pattern_array *array, int (*cmp)(const void *a, const void *b)) { lwan_array_sort (&array->base, sizeof(struct pattern), cmp); } __attribute__ ((unused)) static inline size_t pattern_array_get_elem_index( const struct pattern_array *array, struct pattern *elem) { ( (void) sizeof ((elem >= (struct pattern *)array->base.base ) ? 1 : 0), __extension__ ({ if (elem >= (struct pattern * )array->base.base) ; else __assert_fail ("elem >= (struct pattern *)array->base.base" , "/home/buildbot/lwan-worker/clang-analyze/build/src/lib/lwan-mod-rewrite.c" , 85, __extension__ __PRETTY_FUNCTION__); })); ((void) sizeof ((elem < (struct pattern *)array->base.base + array-> base.elements) ? 1 : 0), __extension__ ({ if (elem < (struct pattern *)array->base.base + array->base.elements) ; else __assert_fail ("elem < (struct pattern *)array->base.base + array->base.elements" , "/home/buildbot/lwan-worker/clang-analyze/build/src/lib/lwan-mod-rewrite.c" , 85, __extension__ __PRETTY_FUNCTION__); })); return (size_t )(elem - (struct pattern *)array->base.base); } __attribute__ ((unused)) static inline struct pattern *pattern_array_get_elem (const struct pattern_array *array, size_t index) { ((void) sizeof ((index <= array->base.elements) ? 1 : 0), __extension__ ({ if (index <= array->base.elements) ; else __assert_fail ("index <= array->base.elements", "/home/buildbot/lwan-worker/clang-analyze/build/src/lib/lwan-mod-rewrite.c" , 85, __extension__ __PRETTY_FUNCTION__); })); return &(( struct pattern *)array->base.base)[index]; } __attribute__ ((unused)) static inline size_t pattern_array_len( const struct pattern_array *array) { return array->base.elements; } | ||||
86 | |||||
87 | struct private_data { | ||||
88 | struct pattern_array patterns; | ||||
89 | }; | ||||
90 | |||||
91 | static enum lwan_http_status module_redirect_to(struct lwan_request *request, | ||||
92 | const char *url) | ||||
93 | { | ||||
94 | const struct lwan_key_value headers[] = { | ||||
95 | {"Location", coro_strdup(request->conn->coro, url)}, | ||||
96 | {}, | ||||
97 | }; | ||||
98 | |||||
99 | request->response.headers = | ||||
100 | coro_memdup(request->conn->coro, headers, sizeof(headers)); | ||||
101 | |||||
102 | if (LIKELY(headers[0].value && request->response.headers)__builtin_expect((!!(headers[0].value && request-> response.headers)), (1))) | ||||
103 | return HTTP_MOVED_PERMANENTLY; | ||||
104 | |||||
105 | return HTTP_INTERNAL_ERROR; | ||||
106 | } | ||||
107 | |||||
108 | static enum lwan_http_status module_rewrite_as(struct lwan_request *request, | ||||
109 | const char *url) | ||||
110 | { | ||||
111 | request->url.value = coro_strdup(request->conn->coro, url); | ||||
112 | |||||
113 | if (UNLIKELY(!request->url.value)__builtin_expect(((!request->url.value)), (0))) | ||||
114 | return HTTP_INTERNAL_ERROR; | ||||
115 | |||||
116 | request->url.len = strlen(request->url.value); | ||||
117 | request->original_url = request->url; | ||||
118 | request->flags |= RESPONSE_URL_REWRITTEN; | ||||
119 | |||||
120 | return HTTP_OK; | ||||
121 | } | ||||
122 | |||||
123 | #define MAX_INT_DIGITS(3 * sizeof(int)) (3 * sizeof(int)) | ||||
124 | |||||
125 | static __attribute__((noinline)) int parse_int_len(const char *s, size_t len, | ||||
126 | int default_value) | ||||
127 | { | ||||
128 | if (UNLIKELY(len > MAX_INT_DIGITS)__builtin_expect(((len > (3 * sizeof(int)))), (0))) | ||||
129 | return default_value; | ||||
130 | |||||
131 | return parse_int(strndupa(s, len)(__extension__ ({ const char *__old = (s); size_t __len = strnlen (__old, (len)); char *__new = (char *) __builtin_alloca (__len + 1); __new[__len] = '\0'; (char *) memcpy (__new, __old, __len ); })), default_value); | ||||
132 | } | ||||
133 | |||||
134 | static const char *expand_string(const char *expand_pattern, | ||||
135 | const char *orig, | ||||
136 | char buffer[static PATH_MAX4096], | ||||
137 | const struct str_find *sf, | ||||
138 | int captures) | ||||
139 | { | ||||
140 | struct lwan_strbuf strbuf; | ||||
141 | const char *ptr; | ||||
142 | |||||
143 | ptr = strchr(expand_pattern, '%'); | ||||
144 | if (!ptr) | ||||
145 | return expand_pattern; | ||||
146 | |||||
147 | if (!lwan_strbuf_init_with_fixed_buffer(&strbuf, buffer, PATH_MAX4096)) | ||||
148 | return NULL((void*)0); | ||||
149 | |||||
150 | do { | ||||
151 | size_t index_len = strspn(ptr + 1, "0123456789"); | ||||
152 | |||||
153 | if (ptr > expand_pattern) { | ||||
154 | const size_t len = (size_t)(ptr - expand_pattern); | ||||
155 | |||||
156 | if (UNLIKELY(!lwan_strbuf_append_str(&strbuf, expand_pattern, len))__builtin_expect(((!lwan_strbuf_append_str(&strbuf, expand_pattern , len))), (0))) | ||||
157 | return NULL((void*)0); | ||||
158 | |||||
159 | expand_pattern += len; | ||||
160 | } | ||||
161 | |||||
162 | if (LIKELY(index_len > 0)__builtin_expect((!!(index_len > 0)), (1))) { | ||||
163 | const int index = parse_int_len(ptr + 1, index_len, -1); | ||||
164 | |||||
165 | if (UNLIKELY(index < 0 || index > captures)__builtin_expect(((index < 0 || index > captures)), (0) )) | ||||
166 | return NULL((void*)0); | ||||
167 | |||||
168 | if (UNLIKELY(!lwan_strbuf_append_str(__builtin_expect(((!lwan_strbuf_append_str( &strbuf, orig + sf[index].sm_so, (size_t)(sf[index].sm_eo - sf[index].sm_so )))), (0)) | ||||
169 | &strbuf, orig + sf[index].sm_so,__builtin_expect(((!lwan_strbuf_append_str( &strbuf, orig + sf[index].sm_so, (size_t)(sf[index].sm_eo - sf[index].sm_so )))), (0)) | ||||
170 | (size_t)(sf[index].sm_eo - sf[index].sm_so)))__builtin_expect(((!lwan_strbuf_append_str( &strbuf, orig + sf[index].sm_so, (size_t)(sf[index].sm_eo - sf[index].sm_so )))), (0))) | ||||
171 | return NULL((void*)0); | ||||
172 | |||||
173 | expand_pattern += index_len; | ||||
174 | } else if (UNLIKELY(!lwan_strbuf_append_char(&strbuf, '%'))__builtin_expect(((!lwan_strbuf_append_char(&strbuf, '%') )), (0))) { | ||||
175 | return NULL((void*)0); | ||||
176 | } | ||||
177 | |||||
178 | expand_pattern++; | ||||
179 | } while ((ptr = strchr(expand_pattern, '%'))); | ||||
180 | |||||
181 | const size_t remaining_len = strlen(expand_pattern); | ||||
182 | if (remaining_len && | ||||
183 | !lwan_strbuf_append_str(&strbuf, expand_pattern, remaining_len)) | ||||
184 | return NULL((void*)0); | ||||
185 | |||||
186 | if (UNLIKELY(!lwan_strbuf_get_length(&strbuf))__builtin_expect(((!lwan_strbuf_get_length(&strbuf))), (0 ))) | ||||
187 | return NULL((void*)0); | ||||
188 | |||||
189 | return lwan_strbuf_get_buffer(&strbuf); | ||||
190 | } | ||||
191 | |||||
192 | static ALWAYS_INLINEinline __attribute__((always_inline)) const char *expand(const struct pattern *pattern, | ||||
193 | const char *orig, | ||||
194 | char buffer[static PATH_MAX4096], | ||||
195 | const struct str_find *sf, | ||||
196 | int captures) | ||||
197 | { | ||||
198 | return expand_string(pattern->expand_pattern, orig, buffer, sf, captures); | ||||
199 | } | ||||
200 | |||||
201 | #ifdef HAVE_LUA | ||||
202 | static void | ||||
203 | lua_close_defer(void *data) | ||||
204 | { | ||||
205 | lua_close((lua_State *)data); | ||||
206 | } | ||||
207 | |||||
208 | static const char *expand_lua(struct lwan_request *request, | ||||
209 | struct pattern *pattern, const char *orig, | ||||
210 | char buffer[static PATH_MAX4096], | ||||
211 | const struct str_find *sf, int captures) | ||||
212 | { | ||||
213 | const char *output; | ||||
214 | size_t output_len; | ||||
215 | int i; | ||||
216 | lua_State *L; | ||||
217 | |||||
218 | L = lwan_lua_create_state(NULL((void*)0), pattern->expand_pattern); | ||||
219 | if (UNLIKELY(!L)__builtin_expect(((!L)), (0))) | ||||
220 | return NULL((void*)0); | ||||
221 | coro_defer(request->conn->coro, lua_close_defer, L); | ||||
222 | |||||
223 | lua_getglobal(L, "handle_rewrite")lua_getfield(L, (-10002), ("handle_rewrite")); | ||||
224 | if (!lua_isfunction(L, -1)(lua_type(L, (-1)) == 6)) { | ||||
225 | lwan_status_error(lwan_status_error_debug("/home/buildbot/lwan-worker/clang-analyze/build/src/lib/lwan-mod-rewrite.c" , 227, __FUNCTION__, "Could not obtain reference to `handle_rewrite()` function: %s" , lwan_lua_state_last_error(L)) | ||||
226 | "Could not obtain reference to `handle_rewrite()` function: %s",lwan_status_error_debug("/home/buildbot/lwan-worker/clang-analyze/build/src/lib/lwan-mod-rewrite.c" , 227, __FUNCTION__, "Could not obtain reference to `handle_rewrite()` function: %s" , lwan_lua_state_last_error(L)) | ||||
227 | lwan_lua_state_last_error(L))lwan_status_error_debug("/home/buildbot/lwan-worker/clang-analyze/build/src/lib/lwan-mod-rewrite.c" , 227, __FUNCTION__, "Could not obtain reference to `handle_rewrite()` function: %s" , lwan_lua_state_last_error(L)); | ||||
228 | return NULL((void*)0); | ||||
229 | } | ||||
230 | |||||
231 | lwan_lua_state_push_request(L, request); | ||||
232 | |||||
233 | lua_createtable(L, captures, 0); | ||||
234 | for (i = 0; i < captures; i++) { | ||||
235 | lua_pushinteger(L, i); | ||||
236 | lua_pushlstring(L, orig + sf[i].sm_so, | ||||
237 | (size_t)(sf[i].sm_eo - sf[i].sm_so)); | ||||
238 | lua_settable(L, -3); | ||||
239 | } | ||||
240 | |||||
241 | if (lua_pcall(L, 2, 1, 0) != 0) { | ||||
242 | lwan_status_error("Could not execute `handle_rewrite()` function: %s",lwan_status_error_debug("/home/buildbot/lwan-worker/clang-analyze/build/src/lib/lwan-mod-rewrite.c" , 243, __FUNCTION__, "Could not execute `handle_rewrite()` function: %s" , lwan_lua_state_last_error(L)) | ||||
243 | lwan_lua_state_last_error(L))lwan_status_error_debug("/home/buildbot/lwan-worker/clang-analyze/build/src/lib/lwan-mod-rewrite.c" , 243, __FUNCTION__, "Could not execute `handle_rewrite()` function: %s" , lwan_lua_state_last_error(L)); | ||||
244 | return NULL((void*)0); | ||||
245 | } | ||||
246 | |||||
247 | output = lua_tolstring(L, -1, &output_len); | ||||
248 | if (output_len >= PATH_MAX4096) { | ||||
249 | lwan_status_error("Rewritten URL exceeds %d bytes (got %zu bytes)",lwan_status_error_debug("/home/buildbot/lwan-worker/clang-analyze/build/src/lib/lwan-mod-rewrite.c" , 250, __FUNCTION__, "Rewritten URL exceeds %d bytes (got %zu bytes)" , 4096, output_len) | ||||
250 | PATH_MAX, output_len)lwan_status_error_debug("/home/buildbot/lwan-worker/clang-analyze/build/src/lib/lwan-mod-rewrite.c" , 250, __FUNCTION__, "Rewritten URL exceeds %d bytes (got %zu bytes)" , 4096, output_len); | ||||
251 | return NULL((void*)0); | ||||
252 | } | ||||
253 | |||||
254 | return memcpy(buffer, output, output_len + 1); | ||||
255 | } | ||||
256 | #endif | ||||
257 | |||||
258 | static bool_Bool condition_matches(struct lwan_request *request, | ||||
259 | const struct pattern *p, | ||||
260 | const struct str_find *sf, | ||||
261 | int captures) | ||||
262 | { | ||||
263 | if (LIKELY(!(p->flags & PATTERN_COND_MASK))__builtin_expect((!!(!(p->flags & PATTERN_COND_MASK))) , (1))) | ||||
264 | return true1; | ||||
265 | |||||
266 | const char *url = request->url.value; | ||||
267 | char expanded_buf[PATH_MAX4096]; | ||||
268 | |||||
269 | if (p->flags & PATTERN_COND_METHOD) { | ||||
270 | assert(p->condition.method.key)((void) sizeof ((p->condition.method.key) ? 1 : 0), __extension__ ({ if (p->condition.method.key) ; else __assert_fail ("p->condition.method.key" , "/home/buildbot/lwan-worker/clang-analyze/build/src/lib/lwan-mod-rewrite.c" , 270, __extension__ __PRETTY_FUNCTION__); })); | ||||
271 | assert(p->condition.method.value)((void) sizeof ((p->condition.method.value) ? 1 : 0), __extension__ ({ if (p->condition.method.value) ; else __assert_fail ("p->condition.method.value" , "/home/buildbot/lwan-worker/clang-analyze/build/src/lib/lwan-mod-rewrite.c" , 271, __extension__ __PRETTY_FUNCTION__); })); | ||||
272 | |||||
273 | const char *method = lwan_request_get_method_str(request); | ||||
274 | if (!method) | ||||
275 | return false0; | ||||
276 | if (strcasecmp(method, p->condition.method.value) != 0) | ||||
277 | return false0; | ||||
278 | } | ||||
279 | |||||
280 | if (p->flags & PATTERN_COND_COOKIE) { | ||||
281 | assert(p->condition.cookie.key)((void) sizeof ((p->condition.cookie.key) ? 1 : 0), __extension__ ({ if (p->condition.cookie.key) ; else __assert_fail ("p->condition.cookie.key" , "/home/buildbot/lwan-worker/clang-analyze/build/src/lib/lwan-mod-rewrite.c" , 281, __extension__ __PRETTY_FUNCTION__); })); | ||||
282 | assert(p->condition.cookie.value)((void) sizeof ((p->condition.cookie.value) ? 1 : 0), __extension__ ({ if (p->condition.cookie.value) ; else __assert_fail ("p->condition.cookie.value" , "/home/buildbot/lwan-worker/clang-analyze/build/src/lib/lwan-mod-rewrite.c" , 282, __extension__ __PRETTY_FUNCTION__); })); | ||||
283 | |||||
284 | const char *cookie = | ||||
285 | lwan_request_get_cookie(request, p->condition.cookie.key); | ||||
286 | if (!cookie) | ||||
287 | return false0; | ||||
288 | |||||
289 | const char *val = expand_string(p->condition.cookie.value, url, | ||||
290 | expanded_buf, sf, captures); | ||||
291 | if (!val || !streq(val, cookie)) | ||||
292 | return false0; | ||||
293 | } | ||||
294 | |||||
295 | if (p->flags & PATTERN_COND_ENV_VAR) { | ||||
296 | assert(p->condition.env_var.key)((void) sizeof ((p->condition.env_var.key) ? 1 : 0), __extension__ ({ if (p->condition.env_var.key) ; else __assert_fail ("p->condition.env_var.key" , "/home/buildbot/lwan-worker/clang-analyze/build/src/lib/lwan-mod-rewrite.c" , 296, __extension__ __PRETTY_FUNCTION__); })); | ||||
297 | assert(p->condition.env_var.value)((void) sizeof ((p->condition.env_var.value) ? 1 : 0), __extension__ ({ if (p->condition.env_var.value) ; else __assert_fail ( "p->condition.env_var.value", "/home/buildbot/lwan-worker/clang-analyze/build/src/lib/lwan-mod-rewrite.c" , 297, __extension__ __PRETTY_FUNCTION__); })); | ||||
298 | |||||
299 | const char *env_var = secure_getenv(p->condition.env_var.key); | ||||
300 | if (!env_var) | ||||
301 | return false0; | ||||
302 | |||||
303 | const char *val = expand_string(p->condition.env_var.value, url, | ||||
304 | expanded_buf, sf, captures); | ||||
305 | if (!val || !streq(val, env_var)) | ||||
306 | return false0; | ||||
307 | } | ||||
308 | |||||
309 | if (p->flags & PATTERN_COND_QUERY_VAR) { | ||||
310 | assert(p->condition.query_var.key)((void) sizeof ((p->condition.query_var.key) ? 1 : 0), __extension__ ({ if (p->condition.query_var.key) ; else __assert_fail ( "p->condition.query_var.key", "/home/buildbot/lwan-worker/clang-analyze/build/src/lib/lwan-mod-rewrite.c" , 310, __extension__ __PRETTY_FUNCTION__); })); | ||||
311 | assert(p->condition.query_var.value)((void) sizeof ((p->condition.query_var.value) ? 1 : 0), __extension__ ({ if (p->condition.query_var.value) ; else __assert_fail ("p->condition.query_var.value", "/home/buildbot/lwan-worker/clang-analyze/build/src/lib/lwan-mod-rewrite.c" , 311, __extension__ __PRETTY_FUNCTION__); })); | ||||
312 | |||||
313 | const char *query = | ||||
314 | lwan_request_get_query_param(request, p->condition.query_var.key); | ||||
315 | |||||
316 | if (!query) | ||||
317 | return false0; | ||||
318 | |||||
319 | const char *val = expand_string(p->condition.query_var.value, url, | ||||
320 | expanded_buf, sf, captures); | ||||
321 | if (!val || !streq(val, query)) | ||||
322 | return false0; | ||||
323 | } | ||||
324 | |||||
325 | if (p->flags & PATTERN_COND_POST_VAR) { | ||||
326 | assert(p->condition.post_var.key)((void) sizeof ((p->condition.post_var.key) ? 1 : 0), __extension__ ({ if (p->condition.post_var.key) ; else __assert_fail ("p->condition.post_var.key" , "/home/buildbot/lwan-worker/clang-analyze/build/src/lib/lwan-mod-rewrite.c" , 326, __extension__ __PRETTY_FUNCTION__); })); | ||||
327 | assert(p->condition.post_var.value)((void) sizeof ((p->condition.post_var.value) ? 1 : 0), __extension__ ({ if (p->condition.post_var.value) ; else __assert_fail ( "p->condition.post_var.value", "/home/buildbot/lwan-worker/clang-analyze/build/src/lib/lwan-mod-rewrite.c" , 327, __extension__ __PRETTY_FUNCTION__); })); | ||||
328 | |||||
329 | const char *post = | ||||
330 | lwan_request_get_post_param(request, p->condition.post_var.key); | ||||
331 | if (!post) | ||||
332 | return false0; | ||||
333 | |||||
334 | const char *val = expand_string(p->condition.post_var.value, url, | ||||
335 | expanded_buf, sf, captures); | ||||
336 | if (!val || !streq(val, post)) | ||||
337 | return false0; | ||||
338 | } | ||||
339 | |||||
340 | if (p->flags & PATTERN_COND_STAT) { | ||||
341 | assert(p->condition.stat.path)((void) sizeof ((p->condition.stat.path) ? 1 : 0), __extension__ ({ if (p->condition.stat.path) ; else __assert_fail ("p->condition.stat.path" , "/home/buildbot/lwan-worker/clang-analyze/build/src/lib/lwan-mod-rewrite.c" , 341, __extension__ __PRETTY_FUNCTION__); })); | ||||
342 | |||||
343 | struct stat st; | ||||
344 | |||||
345 | /* FIXME: Expanding path from a user-controlled URL and use the | ||||
346 | * resulting path to call stat(2) on could lead to some information | ||||
347 | * disclosure vulnerability. Would require the server to be configured | ||||
348 | * in a certain way, though. | ||||
349 | */ | ||||
350 | const char *path = expand_string(p->condition.stat.path, url, | ||||
351 | expanded_buf, sf, captures); | ||||
352 | if (!path || stat(path, &st) < 0) | ||||
353 | return false0; | ||||
354 | |||||
355 | if (p->condition.stat.has_is_file && | ||||
356 | p->condition.stat.is_file != !!S_ISREG(st.st_mode)((((st.st_mode)) & 0170000) == (0100000))) { | ||||
357 | return false0; | ||||
358 | } | ||||
359 | if (p->condition.stat.has_is_dir && | ||||
360 | p->condition.stat.is_dir != !!S_ISDIR(st.st_mode)((((st.st_mode)) & 0170000) == (0040000))) { | ||||
361 | return false0; | ||||
362 | } | ||||
363 | } | ||||
364 | |||||
365 | #ifdef HAVE_LUA | ||||
366 | if (p->flags & PATTERN_COND_LUA) { | ||||
367 | assert(p->condition.lua.script)((void) sizeof ((p->condition.lua.script) ? 1 : 0), __extension__ ({ if (p->condition.lua.script) ; else __assert_fail ("p->condition.lua.script" , "/home/buildbot/lwan-worker/clang-analyze/build/src/lib/lwan-mod-rewrite.c" , 367, __extension__ __PRETTY_FUNCTION__); })); | ||||
368 | |||||
369 | lua_State *L = lwan_lua_create_state(NULL((void*)0), p->condition.lua.script); | ||||
370 | if (!L) | ||||
371 | return false0; | ||||
372 | coro_defer(request->conn->coro, lua_close_defer, L); | ||||
373 | |||||
374 | lua_getglobal(L, "matches")lua_getfield(L, (-10002), ("matches")); | ||||
375 | if (!lua_isfunction(L, -1)(lua_type(L, (-1)) == 6)) { | ||||
376 | lwan_status_error(lwan_status_error_debug("/home/buildbot/lwan-worker/clang-analyze/build/src/lib/lwan-mod-rewrite.c" , 378, __FUNCTION__, "Could not obtain reference to `matches()` function: %s" , lwan_lua_state_last_error(L)) | ||||
377 | "Could not obtain reference to `matches()` function: %s",lwan_status_error_debug("/home/buildbot/lwan-worker/clang-analyze/build/src/lib/lwan-mod-rewrite.c" , 378, __FUNCTION__, "Could not obtain reference to `matches()` function: %s" , lwan_lua_state_last_error(L)) | ||||
378 | lwan_lua_state_last_error(L))lwan_status_error_debug("/home/buildbot/lwan-worker/clang-analyze/build/src/lib/lwan-mod-rewrite.c" , 378, __FUNCTION__, "Could not obtain reference to `matches()` function: %s" , lwan_lua_state_last_error(L)); | ||||
379 | return false0; | ||||
380 | } | ||||
381 | |||||
382 | lwan_lua_state_push_request(L, request); | ||||
383 | |||||
384 | if (lua_pcall(L, 1, 1, 0) != 0) { | ||||
385 | lwan_status_error("Could not execute `matches()` function: %s",lwan_status_error_debug("/home/buildbot/lwan-worker/clang-analyze/build/src/lib/lwan-mod-rewrite.c" , 386, __FUNCTION__, "Could not execute `matches()` function: %s" , lwan_lua_state_last_error(L)) | ||||
386 | lwan_lua_state_last_error(L))lwan_status_error_debug("/home/buildbot/lwan-worker/clang-analyze/build/src/lib/lwan-mod-rewrite.c" , 386, __FUNCTION__, "Could not execute `matches()` function: %s" , lwan_lua_state_last_error(L)); | ||||
387 | return false0; | ||||
388 | } | ||||
389 | |||||
390 | if (!lua_toboolean(L, -1)) | ||||
391 | return false0; | ||||
392 | } | ||||
393 | #else | ||||
394 | assert(!(p->flags & PATTERN_COND_LUA))((void) sizeof ((!(p->flags & PATTERN_COND_LUA)) ? 1 : 0), __extension__ ({ if (!(p->flags & PATTERN_COND_LUA )) ; else __assert_fail ("!(p->flags & PATTERN_COND_LUA)" , "/home/buildbot/lwan-worker/clang-analyze/build/src/lib/lwan-mod-rewrite.c" , 394, __extension__ __PRETTY_FUNCTION__); })); | ||||
395 | #endif | ||||
396 | |||||
397 | return true1; | ||||
398 | } | ||||
399 | |||||
400 | static enum lwan_http_status | ||||
401 | rewrite_handle_request(struct lwan_request *request, | ||||
402 | struct lwan_response *response __attribute__((unused)), | ||||
403 | void *instance) | ||||
404 | { | ||||
405 | struct private_data *pd = instance; | ||||
406 | const char *url = request->url.value; | ||||
407 | char final_url[PATH_MAX4096]; | ||||
408 | struct pattern *p; | ||||
409 | |||||
410 | LWAN_ARRAY_FOREACH(&pd->patterns, p)for (p = (&pd->patterns)->base.base; p < ((typeof (p))(&pd->patterns)->base.base + (&pd->patterns )->base.elements); p++) { | ||||
411 | struct str_find sf[MAXCAPTURES32]; | ||||
412 | const char *expanded = NULL((void*)0); | ||||
413 | const char *errmsg; | ||||
414 | int captures; | ||||
415 | |||||
416 | captures = str_find(url, p->pattern, sf, MAXCAPTURES32, &errmsg); | ||||
417 | if (captures <= 0) | ||||
418 | continue; | ||||
419 | |||||
420 | if (!condition_matches(request, p, sf, captures)) | ||||
421 | continue; | ||||
422 | |||||
423 | switch (p->flags & PATTERN_EXPAND_MASK) { | ||||
424 | #ifdef HAVE_LUA | ||||
425 | case PATTERN_EXPAND_LUA: | ||||
426 | expanded = expand_lua(request, p, url, final_url, sf, captures); | ||||
427 | break; | ||||
428 | #endif | ||||
429 | case PATTERN_EXPAND_LWAN: | ||||
430 | expanded = expand(p, url, final_url, sf, captures); | ||||
431 | break; | ||||
432 | } | ||||
433 | |||||
434 | if (LIKELY(expanded)__builtin_expect((!!(expanded)), (1))) { | ||||
435 | switch (p->flags & PATTERN_HANDLE_MASK) { | ||||
436 | case PATTERN_HANDLE_REDIRECT: | ||||
437 | return module_redirect_to(request, expanded); | ||||
438 | case PATTERN_HANDLE_REWRITE: | ||||
439 | return module_rewrite_as(request, expanded); | ||||
440 | } | ||||
441 | } | ||||
442 | |||||
443 | return HTTP_INTERNAL_ERROR; | ||||
444 | } | ||||
445 | |||||
446 | return HTTP_NOT_FOUND; | ||||
447 | } | ||||
448 | |||||
449 | static void *rewrite_create(const char *prefix __attribute__((unused)), | ||||
450 | void *instance __attribute__((unused))) | ||||
451 | { | ||||
452 | struct private_data *pd = malloc(sizeof(*pd)); | ||||
453 | |||||
454 | if (!pd) | ||||
455 | return NULL((void*)0); | ||||
456 | |||||
457 | pattern_array_init(&pd->patterns); | ||||
458 | |||||
459 | return pd; | ||||
460 | } | ||||
461 | |||||
462 | static void rewrite_destroy(void *instance) | ||||
463 | { | ||||
464 | struct private_data *pd = instance; | ||||
465 | struct pattern *iter; | ||||
466 | |||||
467 | LWAN_ARRAY_FOREACH(&pd->patterns, iter)for (iter = (&pd->patterns)->base.base; iter < ( (typeof(iter))(&pd->patterns)->base.base + (&pd ->patterns)->base.elements); iter++) { | ||||
468 | free(iter->pattern); | ||||
469 | free(iter->expand_pattern); | ||||
470 | if (iter->flags & PATTERN_COND_COOKIE) { | ||||
471 | free(iter->condition.cookie.key); | ||||
472 | free(iter->condition.cookie.value); | ||||
473 | } | ||||
474 | if (iter->flags & PATTERN_COND_ENV_VAR) { | ||||
475 | free(iter->condition.env_var.key); | ||||
476 | free(iter->condition.env_var.value); | ||||
477 | } | ||||
478 | if (iter->flags & PATTERN_COND_QUERY_VAR) { | ||||
479 | free(iter->condition.query_var.key); | ||||
480 | free(iter->condition.query_var.value); | ||||
481 | } | ||||
482 | if (iter->flags & PATTERN_COND_POST_VAR) { | ||||
483 | free(iter->condition.post_var.key); | ||||
484 | free(iter->condition.post_var.value); | ||||
485 | } | ||||
486 | if (iter->flags & PATTERN_COND_HEADER) { | ||||
487 | free(iter->condition.header.key); | ||||
488 | free(iter->condition.header.value); | ||||
489 | } | ||||
490 | if (iter->flags & PATTERN_COND_METHOD) { | ||||
491 | free(iter->condition.method.key); | ||||
492 | free(iter->condition.method.value); | ||||
493 | } | ||||
494 | if (iter->flags & PATTERN_COND_STAT) { | ||||
495 | free(iter->condition.stat.path); | ||||
496 | } | ||||
497 | #ifdef HAVE_LUA | ||||
498 | if (iter->flags & PATTERN_COND_LUA) { | ||||
499 | free(iter->condition.lua.script); | ||||
500 | } | ||||
501 | #endif | ||||
502 | } | ||||
503 | |||||
504 | pattern_array_reset(&pd->patterns); | ||||
505 | free(pd); | ||||
506 | } | ||||
507 | |||||
508 | static void *rewrite_create_from_hash(const char *prefix, | ||||
509 | const struct hash *hash | ||||
510 | __attribute__((unused))) | ||||
511 | { | ||||
512 | return rewrite_create(prefix, NULL((void*)0)); | ||||
513 | } | ||||
514 | |||||
515 | static void parse_condition_key_value(struct pattern *pattern, | ||||
516 | struct lwan_key_value *key_value, | ||||
517 | enum pattern_flag condition_type, | ||||
518 | struct config *config, | ||||
519 | const struct config_line *line) | ||||
520 | { | ||||
521 | char *key = NULL((void*)0), *value = NULL((void*)0); | ||||
522 | |||||
523 | while ((line = config_read_line(config))) { | ||||
524 | switch (line->type) { | ||||
525 | case CONFIG_LINE_TYPE_SECTION: | ||||
526 | config_error(config, "Unexpected section: %s", line->key); | ||||
527 | goto out; | ||||
528 | |||||
529 | case CONFIG_LINE_TYPE_SECTION_END: | ||||
530 | if (!key || !value) { | ||||
531 | config_error(config, "Key/value has not been specified"); | ||||
532 | goto out; | ||||
533 | } | ||||
534 | |||||
535 | *key_value = (struct lwan_key_value){key, value}; | ||||
536 | pattern->flags |= condition_type & PATTERN_COND_MASK; | ||||
537 | return; | ||||
538 | |||||
539 | case CONFIG_LINE_TYPE_LINE: | ||||
540 | if (key
| ||||
541 | config_error(config, | ||||
542 | "Can only condition on a single key/value pair. " | ||||
543 | "Currently has: %s=%s", | ||||
544 | key, value); | ||||
545 | goto out; | ||||
546 | } | ||||
547 | |||||
548 | key = strdup(line->key); | ||||
549 | if (!key) { | ||||
550 | config_error(config, | ||||
551 | "Could not copy key while parsing condition"); | ||||
552 | goto out; | ||||
553 | } | ||||
554 | |||||
555 | value = strdup(line->value); | ||||
556 | if (!value) { | ||||
557 | free(key); | ||||
558 | config_error(config, | ||||
559 | "Could not copy value while parsing condition"); | ||||
560 | goto out; | ||||
561 | } | ||||
562 | break; | ||||
563 | } | ||||
564 | } | ||||
565 | |||||
566 | out: | ||||
567 | free(key); | ||||
| |||||
568 | free(value); | ||||
569 | } | ||||
570 | |||||
571 | static void parse_condition_stat(struct pattern *pattern, | ||||
572 | struct config *config, | ||||
573 | const struct config_line *line) | ||||
574 | { | ||||
575 | char *path = NULL((void*)0), *is_dir = NULL((void*)0), *is_file = NULL((void*)0); | ||||
576 | |||||
577 | while ((line = config_read_line(config))) { | ||||
578 | switch (line->type) { | ||||
579 | case CONFIG_LINE_TYPE_SECTION: | ||||
580 | config_error(config, "Unexpected section: %s", line->key); | ||||
581 | goto out; | ||||
582 | |||||
583 | case CONFIG_LINE_TYPE_SECTION_END: | ||||
584 | if (!path) { | ||||
585 | config_error(config, "Path not specified"); | ||||
586 | goto out; | ||||
587 | } | ||||
588 | |||||
589 | pattern->condition.stat.path = path; | ||||
590 | pattern->condition.stat.is_dir = parse_bool(is_dir, false0); | ||||
591 | pattern->condition.stat.is_file = parse_bool(is_file, false0); | ||||
592 | pattern->condition.stat.has_is_dir = is_dir != NULL((void*)0); | ||||
593 | pattern->condition.stat.has_is_file = is_file != NULL((void*)0); | ||||
594 | pattern->flags |= PATTERN_COND_STAT; | ||||
595 | return; | ||||
596 | |||||
597 | case CONFIG_LINE_TYPE_LINE: | ||||
598 | if (streq(line->key, "path")) { | ||||
599 | if (path) { | ||||
600 | config_error(config, "Path `%s` already specified", path); | ||||
601 | goto out; | ||||
602 | } | ||||
603 | path = strdup(line->value); | ||||
604 | if (!path) { | ||||
605 | config_error(config, "Could not copy path"); | ||||
606 | goto out; | ||||
607 | } | ||||
608 | } else if (streq(line->key, "is_dir")) { | ||||
609 | is_dir = line->value; | ||||
610 | } else if (streq(line->key, "is_file")) { | ||||
611 | is_file = line->value; | ||||
612 | } else { | ||||
613 | config_error(config, "Unexpected key: %s", line->key); | ||||
614 | goto out; | ||||
615 | } | ||||
616 | |||||
617 | break; | ||||
618 | } | ||||
619 | } | ||||
620 | |||||
621 | out: | ||||
622 | free(path); | ||||
623 | } | ||||
624 | |||||
625 | #ifdef HAVE_LUA | ||||
626 | static void parse_condition_lua(struct pattern *pattern, | ||||
627 | struct config *config, | ||||
628 | const struct config_line *line) | ||||
629 | { | ||||
630 | char *script = NULL((void*)0); | ||||
631 | |||||
632 | while ((line = config_read_line(config))) { | ||||
633 | switch (line->type) { | ||||
634 | case CONFIG_LINE_TYPE_SECTION: | ||||
635 | config_error(config, "Unexpected section: %s", line->key); | ||||
636 | goto out; | ||||
637 | |||||
638 | case CONFIG_LINE_TYPE_SECTION_END: | ||||
639 | if (!script) { | ||||
640 | config_error(config, "Script not specified"); | ||||
641 | goto out; | ||||
642 | } | ||||
643 | |||||
644 | pattern->condition.lua.script = script; | ||||
645 | pattern->flags |= PATTERN_COND_LUA; | ||||
646 | return; | ||||
647 | |||||
648 | case CONFIG_LINE_TYPE_LINE: | ||||
649 | if (streq(line->key, "script")) { | ||||
650 | if (script) { | ||||
651 | config_error(config, "Script already specified"); | ||||
652 | goto out; | ||||
653 | } | ||||
654 | script = strdup(line->value); | ||||
655 | if (!script) { | ||||
656 | config_error(config, "Could not copy script"); | ||||
657 | goto out; | ||||
658 | } | ||||
659 | } else { | ||||
660 | config_error(config, "Unexpected key: %s", line->key); | ||||
661 | goto out; | ||||
662 | } | ||||
663 | |||||
664 | break; | ||||
665 | } | ||||
666 | } | ||||
667 | |||||
668 | out: | ||||
669 | free(script); | ||||
670 | } | ||||
671 | #endif | ||||
672 | |||||
673 | static void parse_condition(struct pattern *pattern, | ||||
674 | struct config *config, | ||||
675 | const struct config_line *line) | ||||
676 | { | ||||
677 | if (streq(line->value, "cookie")) { | ||||
678 | return parse_condition_key_value(pattern, &pattern->condition.cookie, | ||||
679 | PATTERN_COND_COOKIE, config, line); | ||||
680 | } | ||||
681 | if (streq(line->value, "query")) { | ||||
682 | return parse_condition_key_value(pattern, &pattern->condition.query_var, | ||||
683 | PATTERN_COND_QUERY_VAR, config, line); | ||||
684 | } | ||||
685 | if (streq(line->value, "post")) { | ||||
686 | return parse_condition_key_value(pattern, &pattern->condition.post_var, | ||||
687 | PATTERN_COND_POST_VAR, config, line); | ||||
688 | } | ||||
689 | if (streq(line->value, "environment")) { | ||||
690 | return parse_condition_key_value(pattern, &pattern->condition.env_var, | ||||
691 | PATTERN_COND_ENV_VAR, config, line); | ||||
692 | } | ||||
693 | if (streq(line->value, "header")) { | ||||
694 | return parse_condition_key_value(pattern, &pattern->condition.header, | ||||
695 | PATTERN_COND_HEADER, config, line); | ||||
696 | } | ||||
697 | if (streq(line->value, "method")) { | ||||
698 | parse_condition_key_value(pattern, &pattern->condition.method, | ||||
699 | PATTERN_COND_METHOD, config, line); | ||||
700 | if (!streq(pattern->condition.method.key, "name")) | ||||
701 | config_error(config, "Method condition requires `name`"); | ||||
702 | return; | ||||
703 | } | ||||
704 | if (streq(line->value, "stat")) { | ||||
705 | return parse_condition_stat(pattern, config, line); | ||||
706 | } | ||||
707 | #ifdef HAVE_LUA | ||||
708 | if (streq(line->value, "lua")) { | ||||
709 | return parse_condition_lua(pattern, config, line); | ||||
710 | } | ||||
711 | #endif | ||||
712 | |||||
713 | config_error(config, "Condition `%s' not supported", line->value); | ||||
714 | } | ||||
715 | |||||
716 | static bool_Bool rewrite_parse_conf_pattern(struct private_data *pd, | ||||
717 | struct config *config, | ||||
718 | const struct config_line *line) | ||||
719 | { | ||||
720 | struct pattern *pattern; | ||||
721 | char *redirect_to = NULL((void*)0), *rewrite_as = NULL((void*)0); | ||||
722 | bool_Bool expand_with_lua = false0; | ||||
723 | |||||
724 | pattern = pattern_array_append0(&pd->patterns); | ||||
725 | if (!pattern
| ||||
726 | goto out_no_free; | ||||
727 | |||||
728 | pattern->pattern = strdup(line->value); | ||||
729 | if (!pattern->pattern) | ||||
730 | goto out; | ||||
731 | |||||
732 | while ((line = config_read_line(config))) { | ||||
733 | switch (line->type) { | ||||
734 | case CONFIG_LINE_TYPE_LINE: | ||||
735 | if (streq(line->key, "redirect_to")) { | ||||
736 | free(redirect_to); | ||||
737 | |||||
738 | redirect_to = strdup(line->value); | ||||
739 | if (!redirect_to) | ||||
740 | goto out; | ||||
741 | } else if (streq(line->key, "rewrite_as")) { | ||||
742 | free(rewrite_as); | ||||
743 | |||||
744 | rewrite_as = strdup(line->value); | ||||
745 | if (!rewrite_as) | ||||
746 | goto out; | ||||
747 | } else if (streq(line->key, "expand_with_lua")) { | ||||
748 | expand_with_lua = parse_bool(line->value, false0); | ||||
749 | } else { | ||||
750 | config_error(config, "Unexpected key: %s", line->key); | ||||
751 | goto out; | ||||
752 | } | ||||
753 | break; | ||||
754 | case CONFIG_LINE_TYPE_SECTION: | ||||
755 | if (streq(line->key, "condition")) { | ||||
756 | parse_condition(pattern, config, line); | ||||
757 | } else { | ||||
758 | config_error(config, "Unexpected section: %s", line->key); | ||||
759 | } | ||||
760 | break; | ||||
761 | case CONFIG_LINE_TYPE_SECTION_END: | ||||
762 | if (redirect_to && rewrite_as) { | ||||
763 | config_error( | ||||
764 | config, | ||||
765 | "`redirect to` and `rewrite as` are mutually exclusive"); | ||||
766 | goto out; | ||||
767 | } | ||||
768 | if (redirect_to) { | ||||
769 | pattern->expand_pattern = redirect_to; | ||||
770 | pattern->flags |= PATTERN_HANDLE_REDIRECT; | ||||
771 | } else if (rewrite_as) { | ||||
772 | pattern->expand_pattern = rewrite_as; | ||||
773 | pattern->flags |= PATTERN_HANDLE_REWRITE; | ||||
774 | } else { | ||||
775 | config_error( | ||||
776 | config, | ||||
777 | "either `redirect to` or `rewrite as` are required"); | ||||
778 | goto out; | ||||
779 | } | ||||
780 | if (expand_with_lua) { | ||||
781 | #ifdef HAVE_LUA | ||||
782 | pattern->flags |= PATTERN_EXPAND_LUA; | ||||
783 | #else | ||||
784 | config_error(config, "Lwan has been built without Lua. " | ||||
785 | "`expand_with_lua` is not available"); | ||||
786 | goto out; | ||||
787 | #endif | ||||
788 | } else { | ||||
789 | pattern->flags |= PATTERN_EXPAND_LWAN; | ||||
790 | } | ||||
791 | |||||
792 | return true1; | ||||
793 | } | ||||
794 | } | ||||
795 | |||||
796 | out: | ||||
797 | free(pattern->pattern); | ||||
798 | free(redirect_to); | ||||
799 | free(rewrite_as); | ||||
800 | out_no_free: | ||||
801 | config_error(config, "Could not copy pattern"); | ||||
802 | return false0; | ||||
803 | } | ||||
804 | |||||
805 | static bool_Bool rewrite_parse_conf(void *instance, struct config *config) | ||||
806 | { | ||||
807 | struct private_data *pd = instance; | ||||
808 | const struct config_line *line; | ||||
809 | |||||
810 | while ((line = config_read_line(config))) { | ||||
| |||||
811 | switch (line->type) { | ||||
812 | case CONFIG_LINE_TYPE_LINE: | ||||
813 | config_error(config, "Unknown option: %s", line->key); | ||||
814 | break; | ||||
815 | case CONFIG_LINE_TYPE_SECTION: | ||||
816 | if (streq(line->key, "pattern")) { | ||||
817 | rewrite_parse_conf_pattern(pd, config, line); | ||||
818 | } else { | ||||
819 | config_error(config, "Unknown section: %s", line->key); | ||||
820 | } | ||||
821 | break; | ||||
822 | case CONFIG_LINE_TYPE_SECTION_END: | ||||
823 | break; | ||||
824 | } | ||||
825 | } | ||||
826 | |||||
827 | return !config_last_error(config); | ||||
828 | } | ||||
829 | |||||
830 | static const struct lwan_module module = { | ||||
831 | .create = rewrite_create, | ||||
832 | .create_from_hash = rewrite_create_from_hash, | ||||
833 | .parse_conf = rewrite_parse_conf, | ||||
834 | .destroy = rewrite_destroy, | ||||
835 | .handle_request = rewrite_handle_request, | ||||
836 | .flags = HANDLER_CAN_REWRITE_URL | ||||
837 | }; | ||||
838 | |||||
839 | LWAN_REGISTER_MODULE(rewrite, &module)const struct lwan_module_info __attribute__((used, section("lwan_module" ))) lwan_module_info_rewrite = {.name = "rewrite", .module = & module}; |