|
46
|
1
|
|
|
2 /*
|
|
|
3 * Copyright (C) Igor Sysoev
|
|
|
4 */
|
|
|
5
|
|
|
6
|
|
|
7 #include <ngx_config.h>
|
|
|
8 #include <ngx_core.h>
|
|
|
9 #include <ngx_http.h>
|
|
|
10
|
|
102
|
11 #define NGX_HTTP_SSI_ERROR 1
|
|
|
12
|
|
|
13 #define NGX_HTTP_SSI_DATE_LEN 2048
|
|
|
14
|
|
|
15 #define NGX_HTTP_SSI_ADD_PREFIX 1
|
|
178
|
16 #define NGX_HTTP_SSI_ADD_ZERO 2
|
|
184
|
17 #define NGX_HTTP_SSI_EXPR_TEST 4
|
|
58
|
18
|
|
46
|
19
|
|
|
20 typedef struct {
|
|
146
|
21 ngx_flag_t enable;
|
|
|
22 ngx_flag_t silent_errors;
|
|
|
23 ngx_flag_t ignore_recycled_buffers;
|
|
|
24
|
|
|
25 ngx_array_t *types; /* array of ngx_str_t */
|
|
|
26
|
|
|
27 size_t min_file_chunk;
|
|
|
28 size_t value_len;
|
|
|
29 } ngx_http_ssi_loc_conf_t;
|
|
102
|
30
|
|
|
31
|
|
|
32 typedef struct {
|
|
146
|
33 ngx_str_t name;
|
|
160
|
34 ngx_uint_t key;
|
|
146
|
35 ngx_str_t value;
|
|
|
36 } ngx_http_ssi_var_t;
|
|
46
|
37
|
|
|
38
|
|
216
|
39 typedef struct {
|
|
|
40 ngx_str_t name;
|
|
|
41 ngx_chain_t *bufs;
|
|
|
42 ngx_uint_t count;
|
|
|
43 } ngx_http_ssi_block_t;
|
|
|
44
|
|
|
45
|
|
46
|
46 typedef enum {
|
|
|
47 ssi_start_state = 0,
|
|
|
48 ssi_tag_state,
|
|
|
49 ssi_comment0_state,
|
|
|
50 ssi_comment1_state,
|
|
|
51 ssi_sharp_state,
|
|
|
52 ssi_precommand_state,
|
|
|
53 ssi_command_state,
|
|
|
54 ssi_preparam_state,
|
|
|
55 ssi_param_state,
|
|
|
56 ssi_preequal_state,
|
|
|
57 ssi_prevalue_state,
|
|
|
58 ssi_double_quoted_value_state,
|
|
|
59 ssi_quoted_value_state,
|
|
|
60 ssi_quoted_symbol_state,
|
|
|
61 ssi_postparam_state,
|
|
|
62 ssi_comment_end0_state,
|
|
|
63 ssi_comment_end1_state,
|
|
|
64 ssi_error_state,
|
|
|
65 ssi_error_end0_state,
|
|
|
66 ssi_error_end1_state
|
|
|
67 } ngx_http_ssi_state_e;
|
|
|
68
|
|
|
69
|
|
58
|
70 static ngx_int_t ngx_http_ssi_output(ngx_http_request_t *r,
|
|
|
71 ngx_http_ssi_ctx_t *ctx);
|
|
46
|
72 static ngx_int_t ngx_http_ssi_parse(ngx_http_request_t *r,
|
|
|
73 ngx_http_ssi_ctx_t *ctx);
|
|
102
|
74 static ngx_str_t *ngx_http_ssi_get_variable(ngx_http_request_t *r,
|
|
160
|
75 ngx_str_t *name, ngx_uint_t key);
|
|
102
|
76 static ngx_int_t ngx_http_ssi_evaluate_string(ngx_http_request_t *r,
|
|
|
77 ngx_http_ssi_ctx_t *ctx, ngx_str_t *text, ngx_uint_t flags);
|
|
|
78
|
|
|
79 static ngx_int_t ngx_http_ssi_include(ngx_http_request_t *r,
|
|
|
80 ngx_http_ssi_ctx_t *ctx, ngx_str_t **params);
|
|
248
|
81 static ngx_int_t ngx_http_ssi_stub_output(ngx_http_request_t *r, void *data,
|
|
|
82 ngx_int_t rc);
|
|
|
83 static ngx_int_t ngx_http_ssi_set_variable(ngx_http_request_t *r, void *data,
|
|
|
84 ngx_int_t rc);
|
|
46
|
85 static ngx_int_t ngx_http_ssi_echo(ngx_http_request_t *r,
|
|
|
86 ngx_http_ssi_ctx_t *ctx, ngx_str_t **params);
|
|
58
|
87 static ngx_int_t ngx_http_ssi_config(ngx_http_request_t *r,
|
|
|
88 ngx_http_ssi_ctx_t *ctx, ngx_str_t **params);
|
|
102
|
89 static ngx_int_t ngx_http_ssi_set(ngx_http_request_t *r,
|
|
58
|
90 ngx_http_ssi_ctx_t *ctx, ngx_str_t **params);
|
|
|
91 static ngx_int_t ngx_http_ssi_if(ngx_http_request_t *r,
|
|
|
92 ngx_http_ssi_ctx_t *ctx, ngx_str_t **params);
|
|
|
93 static ngx_int_t ngx_http_ssi_else(ngx_http_request_t *r,
|
|
|
94 ngx_http_ssi_ctx_t *ctx, ngx_str_t **params);
|
|
|
95 static ngx_int_t ngx_http_ssi_endif(ngx_http_request_t *r,
|
|
|
96 ngx_http_ssi_ctx_t *ctx, ngx_str_t **params);
|
|
216
|
97 static ngx_int_t ngx_http_ssi_block(ngx_http_request_t *r,
|
|
|
98 ngx_http_ssi_ctx_t *ctx, ngx_str_t **params);
|
|
|
99 static ngx_int_t ngx_http_ssi_endblock(ngx_http_request_t *r,
|
|
|
100 ngx_http_ssi_ctx_t *ctx, ngx_str_t **params);
|
|
46
|
101
|
|
122
|
102 static ngx_int_t ngx_http_ssi_date_gmt_local_variable(ngx_http_request_t *r,
|
|
380
|
103 ngx_http_variable_value_t *v, uintptr_t gmt);
|
|
58
|
104
|
|
76
|
105 static char *ngx_http_ssi_types(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
|
|
|
106
|
|
146
|
107 static ngx_int_t ngx_http_ssi_preconfiguration(ngx_conf_t *cf);
|
|
|
108 static void *ngx_http_ssi_create_main_conf(ngx_conf_t *cf);
|
|
|
109 static char *ngx_http_ssi_init_main_conf(ngx_conf_t *cf, void *conf);
|
|
296
|
110 static void *ngx_http_ssi_create_loc_conf(ngx_conf_t *cf);
|
|
|
111 static char *ngx_http_ssi_merge_loc_conf(ngx_conf_t *cf,
|
|
46
|
112 void *parent, void *child);
|
|
230
|
113 static ngx_int_t ngx_http_ssi_filter_init(ngx_conf_t *cf);
|
|
46
|
114
|
|
|
115
|
|
|
116 static ngx_command_t ngx_http_ssi_filter_commands[] = {
|
|
|
117
|
|
|
118 { ngx_string("ssi"),
|
|
230
|
119 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF
|
|
|
120 |NGX_CONF_FLAG,
|
|
46
|
121 ngx_conf_set_flag_slot,
|
|
|
122 NGX_HTTP_LOC_CONF_OFFSET,
|
|
146
|
123 offsetof(ngx_http_ssi_loc_conf_t, enable),
|
|
46
|
124 NULL },
|
|
|
125
|
|
|
126 { ngx_string("ssi_silent_errors"),
|
|
|
127 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
|
|
|
128 ngx_conf_set_flag_slot,
|
|
|
129 NGX_HTTP_LOC_CONF_OFFSET,
|
|
146
|
130 offsetof(ngx_http_ssi_loc_conf_t, silent_errors),
|
|
46
|
131 NULL },
|
|
|
132
|
|
58
|
133 { ngx_string("ssi_ignore_recycled_buffers"),
|
|
|
134 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
|
|
|
135 ngx_conf_set_flag_slot,
|
|
|
136 NGX_HTTP_LOC_CONF_OFFSET,
|
|
146
|
137 offsetof(ngx_http_ssi_loc_conf_t, ignore_recycled_buffers),
|
|
58
|
138 NULL },
|
|
|
139
|
|
46
|
140 { ngx_string("ssi_min_file_chunk"),
|
|
|
141 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
|
|
|
142 ngx_conf_set_size_slot,
|
|
|
143 NGX_HTTP_LOC_CONF_OFFSET,
|
|
146
|
144 offsetof(ngx_http_ssi_loc_conf_t, min_file_chunk),
|
|
46
|
145 NULL },
|
|
|
146
|
|
138
|
147 { ngx_string("ssi_value_length"),
|
|
|
148 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
|
|
|
149 ngx_conf_set_size_slot,
|
|
|
150 NGX_HTTP_LOC_CONF_OFFSET,
|
|
146
|
151 offsetof(ngx_http_ssi_loc_conf_t, value_len),
|
|
138
|
152 NULL },
|
|
|
153
|
|
76
|
154 { ngx_string("ssi_types"),
|
|
|
155 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
|
|
|
156 ngx_http_ssi_types,
|
|
|
157 NGX_HTTP_LOC_CONF_OFFSET,
|
|
|
158 0,
|
|
|
159 NULL },
|
|
|
160
|
|
46
|
161 ngx_null_command
|
|
|
162 };
|
|
|
163
|
|
|
164
|
|
126
|
165
|
|
46
|
166 static ngx_http_module_t ngx_http_ssi_filter_module_ctx = {
|
|
146
|
167 ngx_http_ssi_preconfiguration, /* preconfiguration */
|
|
230
|
168 ngx_http_ssi_filter_init, /* postconfiguration */
|
|
46
|
169
|
|
146
|
170 ngx_http_ssi_create_main_conf, /* create main configuration */
|
|
|
171 ngx_http_ssi_init_main_conf, /* init main configuration */
|
|
46
|
172
|
|
|
173 NULL, /* create server configuration */
|
|
|
174 NULL, /* merge server configuration */
|
|
|
175
|
|
296
|
176 ngx_http_ssi_create_loc_conf, /* create location configuration */
|
|
|
177 ngx_http_ssi_merge_loc_conf /* merge location configuration */
|
|
126
|
178 };
|
|
46
|
179
|
|
|
180
|
|
|
181 ngx_module_t ngx_http_ssi_filter_module = {
|
|
58
|
182 NGX_MODULE_V1,
|
|
46
|
183 &ngx_http_ssi_filter_module_ctx, /* module context */
|
|
|
184 ngx_http_ssi_filter_commands, /* module directives */
|
|
|
185 NGX_HTTP_MODULE, /* module type */
|
|
90
|
186 NULL, /* init master */
|
|
230
|
187 NULL, /* init module */
|
|
90
|
188 NULL, /* init process */
|
|
|
189 NULL, /* init thread */
|
|
|
190 NULL, /* exit thread */
|
|
|
191 NULL, /* exit process */
|
|
|
192 NULL, /* exit master */
|
|
|
193 NGX_MODULE_V1_PADDING
|
|
46
|
194 };
|
|
|
195
|
|
|
196
|
|
118
|
197 static ngx_http_output_header_filter_pt ngx_http_next_header_filter;
|
|
|
198 static ngx_http_output_body_filter_pt ngx_http_next_body_filter;
|
|
46
|
199
|
|
|
200
|
|
|
201 static u_char ngx_http_ssi_string[] = "<!--";
|
|
|
202
|
|
|
203 static ngx_str_t ngx_http_ssi_none = ngx_string("(none)");
|
|
248
|
204 static ngx_str_t ngx_http_ssi_null_string = ngx_null_string;
|
|
|
205
|
|
46
|
206
|
|
102
|
207 #define NGX_HTTP_SSI_INCLUDE_VIRTUAL 0
|
|
|
208 #define NGX_HTTP_SSI_INCLUDE_FILE 1
|
|
194
|
209 #define NGX_HTTP_SSI_INCLUDE_WAIT 2
|
|
248
|
210 #define NGX_HTTP_SSI_INCLUDE_SET 3
|
|
|
211 #define NGX_HTTP_SSI_INCLUDE_STUB 4
|
|
46
|
212
|
|
58
|
213 #define NGX_HTTP_SSI_ECHO_VAR 0
|
|
|
214 #define NGX_HTTP_SSI_ECHO_DEFAULT 1
|
|
340
|
215 #define NGX_HTTP_SSI_ECHO_ENCODING 2
|
|
58
|
216
|
|
96
|
217 #define NGX_HTTP_SSI_CONFIG_ERRMSG 0
|
|
|
218 #define NGX_HTTP_SSI_CONFIG_TIMEFMT 1
|
|
58
|
219
|
|
102
|
220 #define NGX_HTTP_SSI_SET_VAR 0
|
|
|
221 #define NGX_HTTP_SSI_SET_VALUE 1
|
|
58
|
222
|
|
|
223 #define NGX_HTTP_SSI_IF_EXPR 0
|
|
|
224
|
|
216
|
225 #define NGX_HTTP_SSI_BLOCK_NAME 0
|
|
|
226
|
|
46
|
227
|
|
102
|
228 static ngx_http_ssi_param_t ngx_http_ssi_include_params[] = {
|
|
146
|
229 { ngx_string("virtual"), NGX_HTTP_SSI_INCLUDE_VIRTUAL, 0, 0 },
|
|
|
230 { ngx_string("file"), NGX_HTTP_SSI_INCLUDE_FILE, 0, 0 },
|
|
194
|
231 { ngx_string("wait"), NGX_HTTP_SSI_INCLUDE_WAIT, 0, 0 },
|
|
248
|
232 { ngx_string("set"), NGX_HTTP_SSI_INCLUDE_SET, 0, 0 },
|
|
216
|
233 { ngx_string("stub"), NGX_HTTP_SSI_INCLUDE_STUB, 0, 0 },
|
|
146
|
234 { ngx_null_string, 0, 0, 0 }
|
|
102
|
235 };
|
|
|
236
|
|
|
237
|
|
46
|
238 static ngx_http_ssi_param_t ngx_http_ssi_echo_params[] = {
|
|
146
|
239 { ngx_string("var"), NGX_HTTP_SSI_ECHO_VAR, 1, 0 },
|
|
|
240 { ngx_string("default"), NGX_HTTP_SSI_ECHO_DEFAULT, 0, 0 },
|
|
340
|
241 { ngx_string("encoding"), NGX_HTTP_SSI_ECHO_ENCODING, 0, 0 },
|
|
146
|
242 { ngx_null_string, 0, 0, 0 }
|
|
46
|
243 };
|
|
|
244
|
|
58
|
245
|
|
|
246 static ngx_http_ssi_param_t ngx_http_ssi_config_params[] = {
|
|
146
|
247 { ngx_string("errmsg"), NGX_HTTP_SSI_CONFIG_ERRMSG, 0, 0 },
|
|
|
248 { ngx_string("timefmt"), NGX_HTTP_SSI_CONFIG_TIMEFMT, 0, 0 },
|
|
|
249 { ngx_null_string, 0, 0, 0 }
|
|
58
|
250 };
|
|
|
251
|
|
|
252
|
|
102
|
253 static ngx_http_ssi_param_t ngx_http_ssi_set_params[] = {
|
|
146
|
254 { ngx_string("var"), NGX_HTTP_SSI_SET_VAR, 1, 0 },
|
|
|
255 { ngx_string("value"), NGX_HTTP_SSI_SET_VALUE, 1, 0 },
|
|
|
256 { ngx_null_string, 0, 0, 0 }
|
|
102
|
257 };
|
|
|
258
|
|
|
259
|
|
58
|
260 static ngx_http_ssi_param_t ngx_http_ssi_if_params[] = {
|
|
146
|
261 { ngx_string("expr"), NGX_HTTP_SSI_IF_EXPR, 1, 0 },
|
|
|
262 { ngx_null_string, 0, 0, 0 }
|
|
58
|
263 };
|
|
|
264
|
|
|
265
|
|
216
|
266 static ngx_http_ssi_param_t ngx_http_ssi_block_params[] = {
|
|
|
267 { ngx_string("name"), NGX_HTTP_SSI_BLOCK_NAME, 1, 0 },
|
|
|
268 { ngx_null_string, 0, 0, 0 }
|
|
|
269 };
|
|
|
270
|
|
|
271
|
|
58
|
272 static ngx_http_ssi_param_t ngx_http_ssi_no_params[] = {
|
|
146
|
273 { ngx_null_string, 0, 0, 0 }
|
|
58
|
274 };
|
|
|
275
|
|
46
|
276
|
|
|
277 static ngx_http_ssi_command_t ngx_http_ssi_commands[] = {
|
|
102
|
278 { ngx_string("include"), ngx_http_ssi_include,
|
|
216
|
279 ngx_http_ssi_include_params, 0, 0, 1 },
|
|
|
280 { ngx_string("echo"), ngx_http_ssi_echo,
|
|
|
281 ngx_http_ssi_echo_params, 0, 0, 0 },
|
|
58
|
282 { ngx_string("config"), ngx_http_ssi_config,
|
|
216
|
283 ngx_http_ssi_config_params, 0, 0, 0 },
|
|
|
284 { ngx_string("set"), ngx_http_ssi_set, ngx_http_ssi_set_params, 0, 0, 0 },
|
|
|
285
|
|
|
286 { ngx_string("if"), ngx_http_ssi_if, ngx_http_ssi_if_params, 0, 0, 0 },
|
|
178
|
287 { ngx_string("elif"), ngx_http_ssi_if, ngx_http_ssi_if_params,
|
|
216
|
288 NGX_HTTP_SSI_COND_IF, 0, 0 },
|
|
178
|
289 { ngx_string("else"), ngx_http_ssi_else, ngx_http_ssi_no_params,
|
|
216
|
290 NGX_HTTP_SSI_COND_IF, 0, 0 },
|
|
178
|
291 { ngx_string("endif"), ngx_http_ssi_endif, ngx_http_ssi_no_params,
|
|
216
|
292 NGX_HTTP_SSI_COND_ELSE, 0, 0 },
|
|
|
293
|
|
|
294 { ngx_string("block"), ngx_http_ssi_block,
|
|
|
295 ngx_http_ssi_block_params, 0, 0, 0 },
|
|
|
296 { ngx_string("endblock"), ngx_http_ssi_endblock,
|
|
|
297 ngx_http_ssi_no_params, 0, 1, 0 },
|
|
|
298
|
|
|
299 { ngx_null_string, NULL, NULL, 0, 0, 0 }
|
|
46
|
300 };
|
|
|
301
|
|
|
302
|
|
58
|
303 static ngx_http_variable_t ngx_http_ssi_vars[] = {
|
|
|
304
|
|
186
|
305 { ngx_string("date_local"), NULL, ngx_http_ssi_date_gmt_local_variable, 0,
|
|
340
|
306 NGX_HTTP_VAR_NOCACHEABLE, 0 },
|
|
58
|
307
|
|
186
|
308 { ngx_string("date_gmt"), NULL, ngx_http_ssi_date_gmt_local_variable, 1,
|
|
340
|
309 NGX_HTTP_VAR_NOCACHEABLE, 0 },
|
|
58
|
310
|
|
186
|
311 { ngx_null_string, NULL, NULL, 0, 0, 0 }
|
|
58
|
312 };
|
|
|
313
|
|
|
314
|
|
|
315
|
|
46
|
316 static ngx_int_t
|
|
|
317 ngx_http_ssi_header_filter(ngx_http_request_t *r)
|
|
|
318 {
|
|
146
|
319 ngx_uint_t i;
|
|
|
320 ngx_str_t *type;
|
|
|
321 ngx_http_ssi_ctx_t *ctx;
|
|
|
322 ngx_http_ssi_loc_conf_t *slcf;
|
|
|
323
|
|
|
324 slcf = ngx_http_get_module_loc_conf(r, ngx_http_ssi_filter_module);
|
|
|
325
|
|
|
326 if (!slcf->enable
|
|
126
|
327 || r->headers_out.content_type.len == 0
|
|
|
328 || r->headers_out.content_length_n == 0)
|
|
46
|
329 {
|
|
|
330 return ngx_http_next_header_filter(r);
|
|
|
331 }
|
|
|
332
|
|
|
333
|
|
146
|
334 type = slcf->types->elts;
|
|
|
335 for (i = 0; i < slcf->types->nelts; i++) {
|
|
76
|
336 if (r->headers_out.content_type.len >= type[i].len
|
|
|
337 && ngx_strncasecmp(r->headers_out.content_type.data,
|
|
|
338 type[i].data, type[i].len) == 0)
|
|
|
339 {
|
|
|
340 goto found;
|
|
|
341 }
|
|
|
342 }
|
|
|
343
|
|
|
344 return ngx_http_next_header_filter(r);
|
|
|
345
|
|
|
346
|
|
|
347 found:
|
|
|
348
|
|
48
|
349 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_ssi_ctx_t));
|
|
|
350 if (ctx == NULL) {
|
|
46
|
351 return NGX_ERROR;
|
|
|
352 }
|
|
|
353
|
|
|
354 ngx_http_set_ctx(r, ctx, ngx_http_ssi_filter_module);
|
|
|
355
|
|
|
356
|
|
146
|
357 ctx->value_len = slcf->value_len;
|
|
46
|
358 ctx->last_out = &ctx->out;
|
|
|
359
|
|
340
|
360 ctx->encoding = NGX_HTTP_SSI_ENTITY_ENCODING;
|
|
58
|
361 ctx->output = 1;
|
|
|
362
|
|
46
|
363 ctx->params.elts = ctx->params_array;
|
|
|
364 ctx->params.size = sizeof(ngx_table_elt_t);
|
|
|
365 ctx->params.nalloc = NGX_HTTP_SSI_PARAMS_N;
|
|
|
366 ctx->params.pool = r->pool;
|
|
|
367
|
|
58
|
368 ctx->timefmt.len = sizeof("%A, %d-%b-%Y %H:%M:%S %Z") - 1;
|
|
|
369 ctx->timefmt.data = (u_char *) "%A, %d-%b-%Y %H:%M:%S %Z";
|
|
46
|
370
|
|
96
|
371 ctx->errmsg.len =
|
|
|
372 sizeof("[an error occurred while processing the directive]") - 1;
|
|
|
373 ctx->errmsg.data = (u_char *)
|
|
|
374 "[an error occurred while processing the directive]";
|
|
|
375
|
|
46
|
376 r->filter_need_in_memory = 1;
|
|
|
377
|
|
146
|
378 if (r == r->main) {
|
|
126
|
379 ngx_http_clear_content_length(r);
|
|
|
380 ngx_http_clear_last_modified(r);
|
|
58
|
381 }
|
|
|
382
|
|
46
|
383 return ngx_http_next_header_filter(r);
|
|
|
384 }
|
|
|
385
|
|
|
386
|
|
|
387 static ngx_int_t
|
|
|
388 ngx_http_ssi_body_filter(ngx_http_request_t *r, ngx_chain_t *in)
|
|
|
389 {
|
|
216
|
390 size_t len;
|
|
146
|
391 ngx_int_t rc;
|
|
|
392 ngx_buf_t *b;
|
|
|
393 ngx_uint_t i, index;
|
|
216
|
394 ngx_chain_t *cl, **ll;
|
|
146
|
395 ngx_table_elt_t *param;
|
|
246
|
396 ngx_http_request_t *pr;
|
|
216
|
397 ngx_http_ssi_ctx_t *ctx, *mctx;
|
|
|
398 ngx_http_ssi_block_t *bl;
|
|
146
|
399 ngx_http_ssi_param_t *prm;
|
|
|
400 ngx_http_ssi_command_t *cmd;
|
|
|
401 ngx_http_ssi_loc_conf_t *slcf;
|
|
|
402 ngx_http_ssi_main_conf_t *smcf;
|
|
148
|
403 ngx_str_t *params[NGX_HTTP_SSI_MAX_PARAMS + 1];
|
|
46
|
404
|
|
|
405 ctx = ngx_http_get_module_ctx(r, ngx_http_ssi_filter_module);
|
|
|
406
|
|
194
|
407 if (ctx == NULL
|
|
|
408 || (in == NULL
|
|
|
409 && ctx->buf == NULL
|
|
|
410 && ctx->in == NULL
|
|
|
411 && ctx->busy == NULL))
|
|
|
412 {
|
|
46
|
413 return ngx_http_next_body_filter(r, in);
|
|
|
414 }
|
|
|
415
|
|
|
416 /* add the incoming chain to the chain ctx->in */
|
|
|
417
|
|
|
418 if (in) {
|
|
|
419 if (ngx_chain_add_copy(r->pool, &ctx->in, in) == NGX_ERROR) {
|
|
|
420 return NGX_ERROR;
|
|
|
421 }
|
|
|
422 }
|
|
|
423
|
|
194
|
424 if (ctx->wait) {
|
|
|
425 if (r->connection->data != r) {
|
|
|
426 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
427 "http ssi filter \"%V\" wait", &r->uri);
|
|
|
428 return NGX_AGAIN;
|
|
|
429 }
|
|
|
430
|
|
246
|
431 for (pr = ctx->wait->parent; pr; pr = pr->parent) {
|
|
|
432 if (pr == r) {
|
|
|
433 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
434 "http ssi filter \"%V\" flush", &r->uri);
|
|
|
435
|
|
|
436 rc = ngx_http_next_body_filter(r, NULL);
|
|
|
437
|
|
|
438 if (ctx->wait->done) {
|
|
|
439 ctx->wait = NULL;
|
|
|
440 }
|
|
|
441
|
|
|
442 if (rc == NGX_ERROR || rc == NGX_AGAIN) {
|
|
|
443 return rc;
|
|
|
444 }
|
|
322
|
445
|
|
|
446 break;
|
|
246
|
447 }
|
|
|
448 }
|
|
|
449
|
|
244
|
450 if (ctx->wait == r) {
|
|
|
451 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
452 "http ssi filter \"%V\" continue", &r->uri);
|
|
|
453 ctx->wait = NULL;
|
|
|
454 }
|
|
194
|
455 }
|
|
|
456
|
|
146
|
457 slcf = ngx_http_get_module_loc_conf(r, ngx_http_ssi_filter_module);
|
|
46
|
458
|
|
58
|
459 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
460 "http ssi filter \"%V\"", &r->uri);
|
|
46
|
461
|
|
48
|
462 while (ctx->in || ctx->buf) {
|
|
46
|
463
|
|
48
|
464 if (ctx->buf == NULL ){
|
|
|
465 ctx->buf = ctx->in->buf;
|
|
|
466 ctx->in = ctx->in->next;
|
|
|
467 ctx->pos = ctx->buf->pos;
|
|
|
468 }
|
|
46
|
469
|
|
|
470 if (ctx->state == ssi_start_state) {
|
|
|
471 ctx->copy_start = ctx->pos;
|
|
|
472 ctx->copy_end = ctx->pos;
|
|
|
473 }
|
|
|
474
|
|
48
|
475 b = NULL;
|
|
|
476
|
|
46
|
477 while (ctx->pos < ctx->buf->last) {
|
|
|
478
|
|
|
479 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
480 "saved: %d state: %d", ctx->saved, ctx->state);
|
|
|
481
|
|
|
482 rc = ngx_http_ssi_parse(r, ctx);
|
|
|
483
|
|
|
484 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
485 "parse: %d, looked: %d %p-%p",
|
|
|
486 rc, ctx->looked, ctx->copy_start, ctx->copy_end);
|
|
|
487
|
|
|
488 if (rc == NGX_ERROR) {
|
|
|
489 return rc;
|
|
|
490 }
|
|
|
491
|
|
|
492 if (ctx->copy_start != ctx->copy_end) {
|
|
|
493
|
|
58
|
494 if (ctx->output) {
|
|
|
495
|
|
|
496 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
497 "saved: %d", ctx->saved);
|
|
|
498
|
|
|
499 if (ctx->saved) {
|
|
|
500
|
|
|
501 if (ctx->free) {
|
|
|
502 cl = ctx->free;
|
|
|
503 ctx->free = ctx->free->next;
|
|
|
504 b = cl->buf;
|
|
|
505 ngx_memzero(b, sizeof(ngx_buf_t));
|
|
46
|
506
|
|
58
|
507 } else {
|
|
|
508 b = ngx_calloc_buf(r->pool);
|
|
|
509 if (b == NULL) {
|
|
|
510 return NGX_ERROR;
|
|
|
511 }
|
|
|
512
|
|
|
513 cl = ngx_alloc_chain_link(r->pool);
|
|
|
514 if (cl == NULL) {
|
|
|
515 return NGX_ERROR;
|
|
|
516 }
|
|
|
517
|
|
|
518 cl->buf = b;
|
|
|
519 }
|
|
|
520
|
|
|
521 b->memory = 1;
|
|
|
522 b->pos = ngx_http_ssi_string;
|
|
|
523 b->last = ngx_http_ssi_string + ctx->saved;
|
|
|
524
|
|
|
525 *ctx->last_out = cl;
|
|
|
526 ctx->last_out = &cl->next;
|
|
|
527
|
|
|
528 ctx->saved = 0;
|
|
|
529 }
|
|
48
|
530
|
|
|
531 if (ctx->free) {
|
|
|
532 cl = ctx->free;
|
|
|
533 ctx->free = ctx->free->next;
|
|
|
534 b = cl->buf;
|
|
|
535
|
|
|
536 } else {
|
|
58
|
537 b = ngx_alloc_buf(r->pool);
|
|
48
|
538 if (b == NULL) {
|
|
|
539 return NGX_ERROR;
|
|
|
540 }
|
|
|
541
|
|
|
542 cl = ngx_alloc_chain_link(r->pool);
|
|
|
543 if (cl == NULL) {
|
|
|
544 return NGX_ERROR;
|
|
|
545 }
|
|
|
546
|
|
|
547 cl->buf = b;
|
|
46
|
548 }
|
|
|
549
|
|
58
|
550 ngx_memcpy(b, ctx->buf, sizeof(ngx_buf_t));
|
|
|
551
|
|
62
|
552 b->pos = ctx->copy_start;
|
|
|
553 b->last = ctx->copy_end;
|
|
|
554 b->shadow = NULL;
|
|
58
|
555 b->last_buf = 0;
|
|
|
556 b->recycled = 0;
|
|
46
|
557
|
|
58
|
558 if (b->in_file) {
|
|
146
|
559 if (slcf->min_file_chunk < (size_t) (b->last - b->pos))
|
|
58
|
560 {
|
|
|
561 b->file_last = b->file_pos + (b->last - b->start);
|
|
|
562 b->file_pos += b->pos - b->start;
|
|
|
563
|
|
|
564 } else {
|
|
|
565 b->in_file = 0;
|
|
|
566 }
|
|
|
567 }
|
|
|
568
|
|
|
569 cl->next = NULL;
|
|
46
|
570 *ctx->last_out = cl;
|
|
|
571 ctx->last_out = &cl->next;
|
|
|
572
|
|
58
|
573 } else {
|
|
216
|
574 if (ctx->block
|
|
|
575 && ctx->saved + (ctx->copy_end - ctx->copy_start))
|
|
|
576 {
|
|
|
577 b = ngx_create_temp_buf(r->pool,
|
|
|
578 ctx->saved + (ctx->copy_end - ctx->copy_start));
|
|
|
579
|
|
|
580 if (b == NULL) {
|
|
|
581 return NGX_ERROR;
|
|
|
582 }
|
|
|
583
|
|
|
584 if (ctx->saved) {
|
|
|
585 b->last = ngx_cpymem(b->pos, ngx_http_ssi_string,
|
|
|
586 ctx->saved);
|
|
|
587 }
|
|
|
588
|
|
|
589 b->last = ngx_cpymem(b->last, ctx->copy_start,
|
|
|
590 ctx->copy_end - ctx->copy_start);
|
|
|
591
|
|
|
592 cl = ngx_alloc_chain_link(r->pool);
|
|
|
593 if (cl == NULL) {
|
|
|
594 return NGX_ERROR;
|
|
|
595 }
|
|
|
596
|
|
|
597 cl->buf = b;
|
|
|
598 cl->next = NULL;
|
|
|
599
|
|
|
600 b = NULL;
|
|
|
601
|
|
|
602 mctx = ngx_http_get_module_ctx(r->main,
|
|
|
603 ngx_http_ssi_filter_module);
|
|
|
604 bl = mctx->blocks->elts;
|
|
|
605 for (ll = &bl[mctx->blocks->nelts - 1].bufs;
|
|
|
606 *ll;
|
|
|
607 ll = &(*ll)->next)
|
|
|
608 {
|
|
|
609 /* void */
|
|
|
610 }
|
|
|
611
|
|
|
612 *ll = cl;
|
|
|
613 }
|
|
|
614
|
|
46
|
615 ctx->saved = 0;
|
|
|
616 }
|
|
|
617 }
|
|
|
618
|
|
|
619 if (ctx->state == ssi_start_state) {
|
|
|
620 ctx->copy_start = ctx->pos;
|
|
|
621 ctx->copy_end = ctx->pos;
|
|
|
622
|
|
|
623 } else {
|
|
|
624 ctx->copy_start = NULL;
|
|
|
625 ctx->copy_end = NULL;
|
|
|
626 }
|
|
|
627
|
|
|
628 if (rc == NGX_AGAIN) {
|
|
|
629 continue;
|
|
|
630 }
|
|
|
631
|
|
|
632
|
|
122
|
633 b = NULL;
|
|
|
634
|
|
46
|
635 if (rc == NGX_OK) {
|
|
|
636
|
|
146
|
637 smcf = ngx_http_get_module_main_conf(r,
|
|
|
638 ngx_http_ssi_filter_module);
|
|
|
639
|
|
|
640 cmd = ngx_hash_find(&smcf->hash, ctx->key, ctx->command.data,
|
|
|
641 ctx->command.len);
|
|
|
642
|
|
|
643 if (cmd == NULL) {
|
|
|
644 if (ctx->output) {
|
|
|
645 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
646 "invalid SSI command: \"%V\"",
|
|
|
647 &ctx->command);
|
|
|
648 goto ssi_error;
|
|
46
|
649 }
|
|
|
650
|
|
146
|
651 continue;
|
|
46
|
652 }
|
|
|
653
|
|
178
|
654 if (cmd->conditional
|
|
|
655 && (ctx->conditional == 0
|
|
|
656 || ctx->conditional > cmd->conditional))
|
|
|
657 {
|
|
|
658 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
659 "invalid context of SSI command: \"%V\"",
|
|
|
660 &ctx->command);
|
|
|
661 goto ssi_error;
|
|
|
662 }
|
|
|
663
|
|
216
|
664 if (!ctx->output && !cmd->block) {
|
|
|
665
|
|
|
666 if (ctx->block) {
|
|
|
667
|
|
|
668 /* reconstruct the SSI command text */
|
|
|
669
|
|
|
670 len = 5 + ctx->command.len + 4;
|
|
|
671
|
|
|
672 param = ctx->params.elts;
|
|
|
673 for (i = 0; i < ctx->params.nelts; i++) {
|
|
|
674 len += 1 + param[i].key.len + 2
|
|
|
675 + param[i].value.len + 1;
|
|
|
676 }
|
|
|
677
|
|
|
678 b = ngx_create_temp_buf(r->pool, len);
|
|
|
679
|
|
|
680 if (b == NULL) {
|
|
|
681 return NGX_ERROR;
|
|
|
682 }
|
|
|
683
|
|
|
684 cl = ngx_alloc_chain_link(r->pool);
|
|
|
685 if (cl == NULL) {
|
|
|
686 return NGX_ERROR;
|
|
|
687 }
|
|
|
688
|
|
|
689 cl->buf = b;
|
|
|
690 cl->next = NULL;
|
|
|
691
|
|
|
692 *b->last++ = '<';
|
|
|
693 *b->last++ = '!';
|
|
|
694 *b->last++ = '-';
|
|
|
695 *b->last++ = '-';
|
|
|
696 *b->last++ = '#';
|
|
|
697
|
|
|
698 b->last = ngx_cpymem(b->last, ctx->command.data,
|
|
|
699 ctx->command.len);
|
|
|
700
|
|
|
701 for (i = 0; i < ctx->params.nelts; i++) {
|
|
|
702 *b->last++ = ' ';
|
|
|
703 b->last = ngx_cpymem(b->last, param[i].key.data,
|
|
|
704 param[i].key.len);
|
|
|
705 *b->last++ = '=';
|
|
|
706 *b->last++ = '"';
|
|
|
707 b->last = ngx_cpymem(b->last, param[i].value.data,
|
|
|
708 param[i].value.len);
|
|
|
709 *b->last++ = '"';
|
|
|
710 }
|
|
|
711
|
|
|
712 *b->last++ = ' ';
|
|
|
713 *b->last++ = '-';
|
|
|
714 *b->last++ = '-';
|
|
|
715 *b->last++ = '>';
|
|
|
716
|
|
|
717 mctx = ngx_http_get_module_ctx(r->main,
|
|
|
718 ngx_http_ssi_filter_module);
|
|
|
719 bl = mctx->blocks->elts;
|
|
|
720 for (ll = &bl[mctx->blocks->nelts - 1].bufs;
|
|
|
721 *ll;
|
|
|
722 ll = &(*ll)->next)
|
|
|
723 {
|
|
|
724 /* void */
|
|
|
725 }
|
|
|
726
|
|
|
727 *ll = cl;
|
|
|
728
|
|
|
729 b = NULL;
|
|
|
730
|
|
|
731 continue;
|
|
|
732 }
|
|
|
733
|
|
|
734 if (cmd->conditional == 0) {
|
|
|
735 continue;
|
|
|
736 }
|
|
58
|
737 }
|
|
|
738
|
|
146
|
739 if (ctx->params.nelts > NGX_HTTP_SSI_MAX_PARAMS) {
|
|
|
740 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
741 "too many SSI command paramters: \"%V\"",
|
|
|
742 &ctx->command);
|
|
|
743 goto ssi_error;
|
|
|
744 }
|
|
|
745
|
|
46
|
746 ngx_memzero(params,
|
|
148
|
747 (NGX_HTTP_SSI_MAX_PARAMS + 1) * sizeof(ngx_str_t *));
|
|
46
|
748
|
|
|
749 param = ctx->params.elts;
|
|
|
750
|
|
|
751 for (i = 0; i < ctx->params.nelts; i++) {
|
|
|
752
|
|
|
753 for (prm = cmd->params; prm->name.len; prm++) {
|
|
|
754
|
|
|
755 if (param[i].key.len != prm->name.len
|
|
|
756 || ngx_strncmp(param[i].key.data, prm->name.data,
|
|
|
757 prm->name.len) != 0)
|
|
|
758 {
|
|
|
759 continue;
|
|
|
760 }
|
|
|
761
|
|
146
|
762 if (!prm->multiple) {
|
|
|
763 if (params[prm->index]) {
|
|
|
764 ngx_log_error(NGX_LOG_ERR,
|
|
|
765 r->connection->log, 0,
|
|
|
766 "duplicate \"%V\" parameter "
|
|
|
767 "in \"%V\" SSI command",
|
|
|
768 ¶m[i].key, &ctx->command);
|
|
|
769
|
|
|
770 goto ssi_error;
|
|
|
771 }
|
|
|
772
|
|
|
773 params[prm->index] = ¶m[i].value;
|
|
|
774
|
|
|
775 break;
|
|
46
|
776 }
|
|
|
777
|
|
146
|
778 for (index = prm->index; params[index]; index++) {
|
|
|
779 /* void */
|
|
|
780 }
|
|
|
781
|
|
|
782 params[index] = ¶m[i].value;
|
|
46
|
783
|
|
|
784 break;
|
|
|
785 }
|
|
|
786
|
|
|
787 if (prm->name.len == 0) {
|
|
|
788 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
789 "invalid parameter name: \"%V\" "
|
|
|
790 "in \"%V\" SSI command",
|
|
|
791 ¶m[i].key, &ctx->command);
|
|
|
792
|
|
|
793 goto ssi_error;
|
|
|
794 }
|
|
|
795 }
|
|
|
796
|
|
|
797 for (prm = cmd->params; prm->name.len; prm++) {
|
|
|
798 if (prm->mandatory && params[prm->index] == 0) {
|
|
|
799 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
800 "mandatory \"%V\" parameter is absent "
|
|
|
801 "in \"%V\" SSI command",
|
|
|
802 &prm->name, &ctx->command);
|
|
|
803
|
|
|
804 goto ssi_error;
|
|
|
805 }
|
|
|
806 }
|
|
|
807
|
|
314
|
808 if (cmd->flush) {
|
|
|
809
|
|
|
810 if (ctx->out) {
|
|
|
811 rc = ngx_http_ssi_output(r, ctx);
|
|
|
812
|
|
|
813 } else {
|
|
|
814 rc = ngx_http_next_body_filter(r, NULL);
|
|
|
815 }
|
|
58
|
816
|
|
|
817 if (rc == NGX_ERROR) {
|
|
|
818 return NGX_ERROR;
|
|
|
819 }
|
|
|
820 }
|
|
|
821
|
|
118
|
822 rc = cmd->handler(r, ctx, params);
|
|
|
823
|
|
|
824 if (rc == NGX_OK) {
|
|
46
|
825 continue;
|
|
|
826 }
|
|
132
|
827
|
|
248
|
828 if (rc == NGX_DONE || rc == NGX_AGAIN || rc == NGX_ERROR) {
|
|
|
829 return rc;
|
|
132
|
830 }
|
|
46
|
831 }
|
|
|
832
|
|
|
833
|
|
|
834 /* rc == NGX_HTTP_SSI_ERROR */
|
|
|
835
|
|
48
|
836 ssi_error:
|
|
46
|
837
|
|
146
|
838 if (slcf->silent_errors) {
|
|
46
|
839 continue;
|
|
|
840 }
|
|
|
841
|
|
48
|
842 if (ctx->free) {
|
|
|
843 cl = ctx->free;
|
|
|
844 ctx->free = ctx->free->next;
|
|
|
845 b = cl->buf;
|
|
|
846 ngx_memzero(b, sizeof(ngx_buf_t));
|
|
|
847
|
|
|
848 } else {
|
|
|
849 b = ngx_calloc_buf(r->pool);
|
|
|
850 if (b == NULL) {
|
|
|
851 return NGX_ERROR;
|
|
|
852 }
|
|
|
853
|
|
|
854 cl = ngx_alloc_chain_link(r->pool);
|
|
|
855 if (cl == NULL) {
|
|
|
856 return NGX_ERROR;
|
|
|
857 }
|
|
|
858
|
|
|
859 cl->buf = b;
|
|
46
|
860 }
|
|
|
861
|
|
|
862 b->memory = 1;
|
|
96
|
863 b->pos = ctx->errmsg.data;
|
|
|
864 b->last = ctx->errmsg.data + ctx->errmsg.len;
|
|
46
|
865
|
|
|
866 cl->next = NULL;
|
|
|
867 *ctx->last_out = cl;
|
|
|
868 ctx->last_out = &cl->next;
|
|
|
869
|
|
|
870 continue;
|
|
|
871 }
|
|
|
872
|
|
236
|
873 if (ctx->buf->last_buf || ngx_buf_in_memory(ctx->buf)) {
|
|
48
|
874 if (b == NULL) {
|
|
|
875 if (ctx->free) {
|
|
|
876 cl = ctx->free;
|
|
|
877 ctx->free = ctx->free->next;
|
|
|
878 b = cl->buf;
|
|
|
879 ngx_memzero(b, sizeof(ngx_buf_t));
|
|
|
880
|
|
|
881 } else {
|
|
|
882 b = ngx_calloc_buf(r->pool);
|
|
|
883 if (b == NULL) {
|
|
|
884 return NGX_ERROR;
|
|
|
885 }
|
|
46
|
886
|
|
48
|
887 cl = ngx_alloc_chain_link(r->pool);
|
|
|
888 if (cl == NULL) {
|
|
|
889 return NGX_ERROR;
|
|
|
890 }
|
|
|
891
|
|
|
892 cl->buf = b;
|
|
|
893 }
|
|
|
894
|
|
58
|
895 b->sync = 1;
|
|
|
896
|
|
48
|
897 cl->next = NULL;
|
|
|
898 *ctx->last_out = cl;
|
|
|
899 ctx->last_out = &cl->next;
|
|
|
900 }
|
|
|
901
|
|
|
902 b->last_buf = ctx->buf->last_buf;
|
|
|
903 b->shadow = ctx->buf;
|
|
58
|
904
|
|
146
|
905 if (slcf->ignore_recycled_buffers == 0) {
|
|
58
|
906 b->recycled = ctx->buf->recycled;
|
|
|
907 }
|
|
46
|
908 }
|
|
|
909
|
|
48
|
910 ctx->buf = NULL;
|
|
|
911
|
|
46
|
912 ctx->saved = ctx->looked;
|
|
|
913 }
|
|
|
914
|
|
48
|
915 if (ctx->out == NULL && ctx->busy == NULL) {
|
|
46
|
916 return NGX_OK;
|
|
|
917 }
|
|
|
918
|
|
58
|
919 return ngx_http_ssi_output(r, ctx);
|
|
|
920 }
|
|
|
921
|
|
|
922
|
|
|
923 static ngx_int_t
|
|
|
924 ngx_http_ssi_output(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx)
|
|
|
925 {
|
|
|
926 ngx_int_t rc;
|
|
|
927 ngx_buf_t *b;
|
|
|
928 ngx_chain_t *cl;
|
|
|
929
|
|
190
|
930 #if 1
|
|
|
931 b = NULL;
|
|
|
932 for (cl = ctx->out; cl; cl = cl->next) {
|
|
192
|
933 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
934 "ssi out: %p %p", cl->buf, cl->buf->pos);
|
|
190
|
935 if (cl->buf == b) {
|
|
|
936 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
|
|
|
937 "the same buf was used in ssi");
|
|
|
938 ngx_debug_point();
|
|
|
939 return NGX_ERROR;
|
|
|
940 }
|
|
|
941 b = cl->buf;
|
|
|
942 }
|
|
|
943 #endif
|
|
|
944
|
|
46
|
945 rc = ngx_http_next_body_filter(r, ctx->out);
|
|
|
946
|
|
48
|
947 if (ctx->busy == NULL) {
|
|
|
948 ctx->busy = ctx->out;
|
|
|
949
|
|
|
950 } else {
|
|
|
951 for (cl = ctx->busy; cl->next; cl = cl->next) { /* void */ }
|
|
|
952 cl->next = ctx->out;
|
|
|
953 }
|
|
|
954
|
|
46
|
955 ctx->out = NULL;
|
|
|
956 ctx->last_out = &ctx->out;
|
|
|
957
|
|
48
|
958 while (ctx->busy) {
|
|
|
959
|
|
206
|
960 cl = ctx->busy;
|
|
|
961 b = cl->buf;
|
|
48
|
962
|
|
|
963 if (ngx_buf_size(b) != 0) {
|
|
|
964 break;
|
|
|
965 }
|
|
|
966
|
|
|
967 #if (NGX_HAVE_WRITE_ZEROCOPY)
|
|
|
968 if (b->zerocopy_busy) {
|
|
|
969 break;
|
|
|
970 }
|
|
|
971 #endif
|
|
|
972
|
|
|
973 if (b->shadow) {
|
|
|
974 b->shadow->pos = b->shadow->last;
|
|
|
975 }
|
|
|
976
|
|
|
977 ctx->busy = cl->next;
|
|
194
|
978
|
|
|
979 if (ngx_buf_in_memory(b) || b->in_file) {
|
|
|
980 /* add data bufs only to the free buf chain */
|
|
|
981
|
|
|
982 cl->next = ctx->free;
|
|
|
983 ctx->free = cl;
|
|
|
984 }
|
|
48
|
985 }
|
|
|
986
|
|
254
|
987 if (ctx->in || ctx->buf) {
|
|
|
988 r->buffered |= NGX_HTTP_SSI_BUFFERED;
|
|
|
989
|
|
|
990 } else {
|
|
|
991 r->buffered &= ~NGX_HTTP_SSI_BUFFERED;
|
|
|
992 }
|
|
|
993
|
|
46
|
994 return rc;
|
|
|
995 }
|
|
|
996
|
|
|
997
|
|
|
998 static ngx_int_t
|
|
|
999 ngx_http_ssi_parse(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx)
|
|
|
1000 {
|
|
158
|
1001 u_char *p, *value, *last, *copy_end, ch;
|
|
46
|
1002 size_t looked;
|
|
|
1003 ngx_http_ssi_state_e state;
|
|
|
1004
|
|
|
1005 state = ctx->state;
|
|
|
1006 looked = ctx->looked;
|
|
|
1007 last = ctx->buf->last;
|
|
|
1008 copy_end = ctx->copy_end;
|
|
|
1009
|
|
|
1010 for (p = ctx->pos; p < last; p++) {
|
|
|
1011
|
|
|
1012 ch = *p;
|
|
|
1013
|
|
|
1014 if (state == ssi_start_state) {
|
|
|
1015
|
|
|
1016 /* the tight loop */
|
|
|
1017
|
|
48
|
1018 for ( ;; ) {
|
|
|
1019 if (ch == '<') {
|
|
|
1020 copy_end = p;
|
|
|
1021 looked = 1;
|
|
|
1022 state = ssi_tag_state;
|
|
|
1023
|
|
|
1024 goto tag_started;
|
|
46
|
1025 }
|
|
|
1026
|
|
48
|
1027 if (++p == last) {
|
|
|
1028 break;
|
|
|
1029 }
|
|
46
|
1030
|
|
48
|
1031 ch = *p;
|
|
46
|
1032 }
|
|
|
1033
|
|
314
|
1034 ctx->state = state;
|
|
46
|
1035 ctx->pos = p;
|
|
|
1036 ctx->looked = looked;
|
|
|
1037 ctx->copy_end = p;
|
|
|
1038
|
|
|
1039 if (ctx->copy_start == NULL) {
|
|
|
1040 ctx->copy_start = ctx->buf->pos;
|
|
|
1041 }
|
|
|
1042
|
|
|
1043 return NGX_AGAIN;
|
|
|
1044
|
|
48
|
1045 tag_started:
|
|
|
1046
|
|
46
|
1047 continue;
|
|
|
1048 }
|
|
|
1049
|
|
|
1050 switch (state) {
|
|
|
1051
|
|
|
1052 case ssi_start_state:
|
|
|
1053 break;
|
|
|
1054
|
|
|
1055 case ssi_tag_state:
|
|
|
1056 switch (ch) {
|
|
|
1057 case '!':
|
|
|
1058 looked = 2;
|
|
|
1059 state = ssi_comment0_state;
|
|
|
1060 break;
|
|
|
1061
|
|
|
1062 case '<':
|
|
|
1063 copy_end = p;
|
|
|
1064 break;
|
|
|
1065
|
|
|
1066 default:
|
|
|
1067 copy_end = p;
|
|
|
1068 looked = 0;
|
|
|
1069 state = ssi_start_state;
|
|
|
1070 break;
|
|
|
1071 }
|
|
|
1072
|
|
|
1073 break;
|
|
|
1074
|
|
|
1075 case ssi_comment0_state:
|
|
|
1076 switch (ch) {
|
|
|
1077 case '-':
|
|
|
1078 looked = 3;
|
|
|
1079 state = ssi_comment1_state;
|
|
|
1080 break;
|
|
|
1081
|
|
|
1082 case '<':
|
|
|
1083 copy_end = p;
|
|
|
1084 looked = 1;
|
|
|
1085 state = ssi_tag_state;
|
|
|
1086 break;
|
|
|
1087
|
|
|
1088 default:
|
|
|
1089 copy_end = p;
|
|
|
1090 looked = 0;
|
|
|
1091 state = ssi_start_state;
|
|
|
1092 break;
|
|
|
1093 }
|
|
|
1094
|
|
|
1095 break;
|
|
|
1096
|
|
|
1097 case ssi_comment1_state:
|
|
|
1098 switch (ch) {
|
|
|
1099 case '-':
|
|
|
1100 looked = 4;
|
|
|
1101 state = ssi_sharp_state;
|
|
|
1102 break;
|
|
|
1103
|
|
|
1104 case '<':
|
|
|
1105 copy_end = p;
|
|
|
1106 looked = 1;
|
|
|
1107 state = ssi_tag_state;
|
|
|
1108 break;
|
|
|
1109
|
|
|
1110 default:
|
|
|
1111 copy_end = p;
|
|
|
1112 looked = 0;
|
|
|
1113 state = ssi_start_state;
|
|
|
1114 break;
|
|
|
1115 }
|
|
|
1116
|
|
|
1117 break;
|
|
|
1118
|
|
|
1119 case ssi_sharp_state:
|
|
|
1120 switch (ch) {
|
|
|
1121 case '#':
|
|
208
|
1122 if (p - ctx->pos < 4) {
|
|
|
1123 ctx->saved = 0;
|
|
|
1124 }
|
|
46
|
1125 looked = 0;
|
|
|
1126 state = ssi_precommand_state;
|
|
|
1127 break;
|
|
|
1128
|
|
|
1129 case '<':
|
|
|
1130 copy_end = p;
|
|
|
1131 looked = 1;
|
|
|
1132 state = ssi_tag_state;
|
|
|
1133 break;
|
|
|
1134
|
|
|
1135 default:
|
|
|
1136 copy_end = p;
|
|
|
1137 looked = 0;
|
|
|
1138 state = ssi_start_state;
|
|
|
1139 break;
|
|
|
1140 }
|
|
|
1141
|
|
|
1142 break;
|
|
|
1143
|
|
|
1144 case ssi_precommand_state:
|
|
|
1145 switch (ch) {
|
|
|
1146 case ' ':
|
|
|
1147 case CR:
|
|
|
1148 case LF:
|
|
|
1149 case '\t':
|
|
|
1150 break;
|
|
|
1151
|
|
|
1152 default:
|
|
|
1153 ctx->command.len = 1;
|
|
|
1154 ctx->command.data = ngx_palloc(r->pool,
|
|
158
|
1155 NGX_HTTP_SSI_COMMAND_LEN);
|
|
46
|
1156 if (ctx->command.data == NULL) {
|
|
|
1157 return NGX_ERROR;
|
|
|
1158 }
|
|
|
1159
|
|
|
1160 ctx->command.data[0] = ch;
|
|
158
|
1161
|
|
146
|
1162 ctx->key = 0;
|
|
|
1163 ctx->key = ngx_hash(ctx->key, ch);
|
|
|
1164
|
|
46
|
1165 ctx->params.nelts = 0;
|
|
178
|
1166
|
|
46
|
1167 state = ssi_command_state;
|
|
|
1168 break;
|
|
|
1169 }
|
|
|
1170
|
|
|
1171 break;
|
|
|
1172
|
|
|
1173 case ssi_command_state:
|
|
|
1174 switch (ch) {
|
|
|
1175 case ' ':
|
|
|
1176 case CR:
|
|
|
1177 case LF:
|
|
|
1178 case '\t':
|
|
|
1179 state = ssi_preparam_state;
|
|
|
1180 break;
|
|
|
1181
|
|
|
1182 case '-':
|
|
|
1183 state = ssi_comment_end0_state;
|
|
|
1184 break;
|
|
|
1185
|
|
|
1186 default:
|
|
|
1187 if (ctx->command.len == NGX_HTTP_SSI_COMMAND_LEN) {
|
|
|
1188 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
158
|
1189 "the \"%V%c...\" SSI command is too long",
|
|
|
1190 &ctx->command, ch);
|
|
46
|
1191
|
|
|
1192 state = ssi_error_state;
|
|
|
1193 break;
|
|
|
1194 }
|
|
158
|
1195
|
|
|
1196 ctx->command.data[ctx->command.len++] = ch;
|
|
|
1197 ctx->key = ngx_hash(ctx->key, ch);
|
|
46
|
1198 }
|
|
|
1199
|
|
|
1200 break;
|
|
|
1201
|
|
|
1202 case ssi_preparam_state:
|
|
|
1203 switch (ch) {
|
|
|
1204 case ' ':
|
|
|
1205 case CR:
|
|
|
1206 case LF:
|
|
|
1207 case '\t':
|
|
|
1208 break;
|
|
|
1209
|
|
|
1210 case '-':
|
|
|
1211 state = ssi_comment_end0_state;
|
|
|
1212 break;
|
|
|
1213
|
|
|
1214 default:
|
|
48
|
1215 ctx->param = ngx_array_push(&ctx->params);
|
|
|
1216 if (ctx->param == NULL) {
|
|
46
|
1217 return NGX_ERROR;
|
|
|
1218 }
|
|
|
1219
|
|
|
1220 ctx->param->key.len = 1;
|
|
|
1221 ctx->param->key.data = ngx_palloc(r->pool,
|
|
158
|
1222 NGX_HTTP_SSI_PARAM_LEN);
|
|
46
|
1223 if (ctx->param->key.data == NULL) {
|
|
|
1224 return NGX_ERROR;
|
|
|
1225 }
|
|
|
1226
|
|
|
1227 ctx->param->key.data[0] = ch;
|
|
|
1228
|
|
|
1229 ctx->param->value.len = 0;
|
|
158
|
1230
|
|
|
1231 if (ctx->value_buf == NULL) {
|
|
|
1232 ctx->param->value.data = ngx_palloc(r->pool,
|
|
|
1233 ctx->value_len);
|
|
|
1234 if (ctx->param->value.data == NULL) {
|
|
|
1235 return NGX_ERROR;
|
|
|
1236 }
|
|
|
1237
|
|
|
1238 } else {
|
|
|
1239 ctx->param->value.data = ctx->value_buf;
|
|
46
|
1240 }
|
|
|
1241
|
|
|
1242 state = ssi_param_state;
|
|
|
1243 break;
|
|
|
1244 }
|
|
|
1245
|
|
|
1246 break;
|
|
|
1247
|
|
|
1248 case ssi_param_state:
|
|
|
1249 switch (ch) {
|
|
|
1250 case ' ':
|
|
|
1251 case CR:
|
|
|
1252 case LF:
|
|
|
1253 case '\t':
|
|
|
1254 state = ssi_preequal_state;
|
|
|
1255 break;
|
|
|
1256
|
|
|
1257 case '=':
|
|
|
1258 state = ssi_prevalue_state;
|
|
|
1259 break;
|
|
|
1260
|
|
|
1261 case '-':
|
|
|
1262 state = ssi_error_end0_state;
|
|
|
1263
|
|
|
1264 ctx->param->key.data[ctx->param->key.len++] = ch;
|
|
|
1265 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1266 "invalid \"%V\" parameter in \"%V\" SSI command",
|
|
|
1267 &ctx->param->key, &ctx->command);
|
|
|
1268 break;
|
|
|
1269
|
|
|
1270 default:
|
|
|
1271 if (ctx->param->key.len == NGX_HTTP_SSI_PARAM_LEN) {
|
|
|
1272 state = ssi_error_state;
|
|
|
1273 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
158
|
1274 "too long \"%V%c...\" parameter in "
|
|
46
|
1275 "\"%V\" SSI command",
|
|
158
|
1276 &ctx->param->key, ch, &ctx->command);
|
|
46
|
1277 break;
|
|
|
1278 }
|
|
158
|
1279
|
|
|
1280 ctx->param->key.data[ctx->param->key.len++] = ch;
|
|
46
|
1281 }
|
|
|
1282
|
|
|
1283 break;
|
|
|
1284
|
|
|
1285 case ssi_preequal_state:
|
|
|
1286 switch (ch) {
|
|
|
1287 case ' ':
|
|
|
1288 case CR:
|
|
|
1289 case LF:
|
|
|
1290 case '\t':
|
|
|
1291 break;
|
|
|
1292
|
|
|
1293 case '=':
|
|
|
1294 state = ssi_prevalue_state;
|
|
|
1295 break;
|
|
|
1296
|
|
|
1297 default:
|
|
|
1298 if (ch == '-') {
|
|
|
1299 state = ssi_error_end0_state;
|
|
|
1300 } else {
|
|
|
1301 state = ssi_error_state;
|
|
|
1302 }
|
|
|
1303
|
|
|
1304 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1305 "unexpected \"%c\" symbol after \"%V\" "
|
|
|
1306 "parameter in \"%V\" SSI command",
|
|
|
1307 ch, &ctx->param->key, &ctx->command);
|
|
|
1308 break;
|
|
|
1309 }
|
|
|
1310
|
|
|
1311 break;
|
|
|
1312
|
|
|
1313 case ssi_prevalue_state:
|
|
|
1314 switch (ch) {
|
|
|
1315 case ' ':
|
|
|
1316 case CR:
|
|
|
1317 case LF:
|
|
|
1318 case '\t':
|
|
|
1319 break;
|
|
|
1320
|
|
|
1321 case '"':
|
|
|
1322 state = ssi_double_quoted_value_state;
|
|
|
1323 break;
|
|
|
1324
|
|
|
1325 case '\'':
|
|
|
1326 state = ssi_quoted_value_state;
|
|
|
1327 break;
|
|
|
1328
|
|
|
1329 default:
|
|
|
1330 if (ch == '-') {
|
|
|
1331 state = ssi_error_end0_state;
|
|
|
1332 } else {
|
|
|
1333 state = ssi_error_state;
|
|
|
1334 }
|
|
|
1335
|
|
|
1336 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1337 "unexpected \"%c\" symbol before value of "
|
|
|
1338 "\"%V\" parameter in \"%V\" SSI command",
|
|
|
1339 ch, &ctx->param->key, &ctx->command);
|
|
|
1340 break;
|
|
|
1341 }
|
|
|
1342
|
|
|
1343 break;
|
|
|
1344
|
|
|
1345 case ssi_double_quoted_value_state:
|
|
|
1346 switch (ch) {
|
|
108
|
1347 case '"':
|
|
|
1348 state = ssi_postparam_state;
|
|
|
1349 break;
|
|
|
1350
|
|
46
|
1351 case '\\':
|
|
|
1352 ctx->saved_state = ssi_double_quoted_value_state;
|
|
|
1353 state = ssi_quoted_symbol_state;
|
|
108
|
1354
|
|
|
1355 /* fall through */
|
|
46
|
1356
|
|
|
1357 default:
|
|
|
1358 if (ctx->param->value.len == ctx->value_len) {
|
|
|
1359 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
158
|
1360 "too long \"%V%c...\" value of \"%V\" "
|
|
|
1361 "parameter in \"%V\" SSI command",
|
|
|
1362 &ctx->param->value, ch, &ctx->param->key,
|
|
46
|
1363 &ctx->command);
|
|
|
1364 state = ssi_error_state;
|
|
|
1365 break;
|
|
|
1366 }
|
|
158
|
1367
|
|
|
1368 ctx->param->value.data[ctx->param->value.len++] = ch;
|
|
46
|
1369 }
|
|
|
1370
|
|
|
1371 break;
|
|
|
1372
|
|
|
1373 case ssi_quoted_value_state:
|
|
|
1374 switch (ch) {
|
|
108
|
1375 case '\'':
|
|
|
1376 state = ssi_postparam_state;
|
|
|
1377 break;
|
|
|
1378
|
|
46
|
1379 case '\\':
|
|
|
1380 ctx->saved_state = ssi_quoted_value_state;
|
|
|
1381 state = ssi_quoted_symbol_state;
|
|
108
|
1382
|
|
|
1383 /* fall through */
|
|
46
|
1384
|
|
|
1385 default:
|
|
|
1386 if (ctx->param->value.len == ctx->value_len) {
|
|
|
1387 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
158
|
1388 "too long \"%V%c...\" value of \"%V\" "
|
|
|
1389 "parameter in \"%V\" SSI command",
|
|
|
1390 &ctx->param->value, ch, &ctx->param->key,
|
|
46
|
1391 &ctx->command);
|
|
|
1392 state = ssi_error_state;
|
|
|
1393 break;
|
|
|
1394 }
|
|
158
|
1395
|
|
|
1396 ctx->param->value.data[ctx->param->value.len++] = ch;
|
|
46
|
1397 }
|
|
|
1398
|
|
|
1399 break;
|
|
|
1400
|
|
|
1401 case ssi_quoted_symbol_state:
|
|
108
|
1402 state = ctx->saved_state;
|
|
|
1403
|
|
46
|
1404 ctx->param->value.data[ctx->param->value.len++] = ch;
|
|
|
1405
|
|
|
1406 break;
|
|
|
1407
|
|
|
1408 case ssi_postparam_state:
|
|
158
|
1409
|
|
200
|
1410 if (ctx->param->value.len + 1 < ctx->value_len / 2) {
|
|
|
1411 value = ngx_palloc(r->pool, ctx->param->value.len + 1);
|
|
158
|
1412 if (value == NULL) {
|
|
|
1413 return NGX_ERROR;
|
|
|
1414 }
|
|
|
1415
|
|
|
1416 ngx_memcpy(value, ctx->param->value.data,
|
|
|
1417 ctx->param->value.len);
|
|
|
1418
|
|
|
1419 ctx->value_buf = ctx->param->value.data;
|
|
|
1420 ctx->param->value.data = value;
|
|
|
1421
|
|
|
1422 } else {
|
|
|
1423 ctx->value_buf = NULL;
|
|
|
1424 }
|
|
|
1425
|
|
46
|
1426 switch (ch) {
|
|
|
1427 case ' ':
|
|
|
1428 case CR:
|
|
|
1429 case LF:
|
|
|
1430 case '\t':
|
|
|
1431 state = ssi_preparam_state;
|
|
|
1432 break;
|
|
|
1433
|
|
|
1434 case '-':
|
|
|
1435 state = ssi_comment_end0_state;
|
|
|
1436 break;
|
|
|
1437
|
|
|
1438 default:
|
|
|
1439 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1440 "unexpected \"%c\" symbol after \"%V\" value "
|
|
|
1441 "of \"%V\" parameter in \"%V\" SSI command",
|
|
|
1442 ch, &ctx->param->value, &ctx->param->key,
|
|
|
1443 &ctx->command);
|
|
|
1444 state = ssi_error_state;
|
|
|
1445 break;
|
|
|
1446 }
|
|
|
1447
|
|
|
1448 break;
|
|
|
1449
|
|
|
1450 case ssi_comment_end0_state:
|
|
|
1451 switch (ch) {
|
|
|
1452 case '-':
|
|
|
1453 state = ssi_comment_end1_state;
|
|
|
1454 break;
|
|
|
1455
|
|
|
1456 default:
|
|
|
1457 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1458 "unexpected \"%c\" symbol in \"%V\" SSI command",
|
|
|
1459 ch, &ctx->command);
|
|
|
1460 state = ssi_error_state;
|
|
|
1461 break;
|
|
|
1462 }
|
|
|
1463
|
|
|
1464 break;
|
|
|
1465
|
|
|
1466 case ssi_comment_end1_state:
|
|
|
1467 switch (ch) {
|
|
|
1468 case '>':
|
|
|
1469 ctx->state = ssi_start_state;
|
|
|
1470 ctx->pos = p + 1;
|
|
|
1471 ctx->looked = looked;
|
|
|
1472 ctx->copy_end = copy_end;
|
|
|
1473
|
|
|
1474 if (ctx->copy_start == NULL && copy_end) {
|
|
|
1475 ctx->copy_start = ctx->buf->pos;
|
|
|
1476 }
|
|
|
1477
|
|
|
1478 return NGX_OK;
|
|
|
1479
|
|
|
1480 default:
|
|
|
1481 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1482 "unexpected \"%c\" symbol in \"%V\" SSI command",
|
|
|
1483 ch, &ctx->command);
|
|
|
1484 state = ssi_error_state;
|
|
|
1485 break;
|
|
|
1486 }
|
|
|
1487
|
|
|
1488 break;
|
|
|
1489
|
|
|
1490 case ssi_error_state:
|
|
|
1491 switch (ch) {
|
|
|
1492 case '-':
|
|
|
1493 state = ssi_error_end0_state;
|
|
|
1494 break;
|
|
|
1495
|
|
|
1496 default:
|
|
|
1497 break;
|
|
|
1498 }
|
|
|
1499
|
|
|
1500 break;
|
|
|
1501
|
|
|
1502 case ssi_error_end0_state:
|
|
|
1503 switch (ch) {
|
|
|
1504 case '-':
|
|
|
1505 state = ssi_error_end1_state;
|
|
|
1506 break;
|
|
|
1507
|
|
|
1508 default:
|
|
|
1509 state = ssi_error_state;
|
|
|
1510 break;
|
|
|
1511 }
|
|
|
1512
|
|
|
1513 break;
|
|
|
1514
|
|
|
1515 case ssi_error_end1_state:
|
|
|
1516 switch (ch) {
|
|
|
1517 case '>':
|
|
|
1518 ctx->state = ssi_start_state;
|
|
|
1519 ctx->pos = p + 1;
|
|
|
1520 ctx->looked = looked;
|
|
|
1521 ctx->copy_end = copy_end;
|
|
|
1522
|
|
|
1523 if (ctx->copy_start == NULL && copy_end) {
|
|
|
1524 ctx->copy_start = ctx->buf->pos;
|
|
|
1525 }
|
|
|
1526
|
|
|
1527 return NGX_HTTP_SSI_ERROR;
|
|
|
1528
|
|
|
1529 default:
|
|
|
1530 state = ssi_error_state;
|
|
|
1531 break;
|
|
|
1532 }
|
|
|
1533
|
|
|
1534 break;
|
|
|
1535 }
|
|
|
1536 }
|
|
|
1537
|
|
|
1538 ctx->state = state;
|
|
|
1539 ctx->pos = p;
|
|
|
1540 ctx->looked = looked;
|
|
|
1541
|
|
|
1542 ctx->copy_end = (state == ssi_start_state) ? p : copy_end;
|
|
|
1543
|
|
|
1544 if (ctx->copy_start == NULL && ctx->copy_end) {
|
|
|
1545 ctx->copy_start = ctx->buf->pos;
|
|
|
1546 }
|
|
|
1547
|
|
|
1548 return NGX_AGAIN;
|
|
|
1549 }
|
|
|
1550
|
|
|
1551
|
|
102
|
1552 static ngx_str_t *
|
|
160
|
1553 ngx_http_ssi_get_variable(ngx_http_request_t *r, ngx_str_t *name,
|
|
|
1554 ngx_uint_t key)
|
|
102
|
1555 {
|
|
|
1556 ngx_uint_t i;
|
|
248
|
1557 ngx_list_part_t *part;
|
|
102
|
1558 ngx_http_ssi_var_t *var;
|
|
|
1559 ngx_http_ssi_ctx_t *ctx;
|
|
|
1560
|
|
|
1561 ctx = ngx_http_get_module_ctx(r->main, ngx_http_ssi_filter_module);
|
|
|
1562
|
|
216
|
1563 if (ctx->variables == NULL) {
|
|
|
1564 return NULL;
|
|
|
1565 }
|
|
|
1566
|
|
248
|
1567 part = &ctx->variables->part;
|
|
|
1568 var = part->elts;
|
|
|
1569
|
|
|
1570 for (i = 0; /* void */ ; i++) {
|
|
|
1571
|
|
|
1572 if (i >= part->nelts) {
|
|
|
1573 if (part->next == NULL) {
|
|
|
1574 break;
|
|
|
1575 }
|
|
250
|
1576
|
|
248
|
1577 part = part->next;
|
|
|
1578 var = part->elts;
|
|
|
1579 i = 0;
|
|
|
1580 }
|
|
|
1581
|
|
102
|
1582 if (name->len != var[i].name.len) {
|
|
|
1583 continue;
|
|
|
1584 }
|
|
|
1585
|
|
160
|
1586 if (key != var[i].key) {
|
|
|
1587 continue;
|
|
|
1588 }
|
|
|
1589
|
|
|
1590 if (ngx_strncmp(name->data, var[i].name.data, name->len) == 0) {
|
|
102
|
1591 return &var[i].value;
|
|
|
1592 }
|
|
|
1593 }
|
|
|
1594
|
|
|
1595 return NULL;
|
|
|
1596 }
|
|
|
1597
|
|
|
1598
|
|
|
1599 static ngx_int_t
|
|
|
1600 ngx_http_ssi_evaluate_string(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
|
|
|
1601 ngx_str_t *text, ngx_uint_t flags)
|
|
|
1602 {
|
|
122
|
1603 u_char ch, *p, **value, *data, *part_data;
|
|
|
1604 size_t *size, len, prefix, part_len;
|
|
|
1605 ngx_str_t var, *val;
|
|
160
|
1606 ngx_int_t key;
|
|
200
|
1607 ngx_uint_t i, j, n, bracket, quoted;
|
|
102
|
1608 ngx_array_t lengths, values;
|
|
|
1609 ngx_http_variable_value_t *vv;
|
|
|
1610
|
|
|
1611 n = ngx_http_script_variables_count(text);
|
|
|
1612
|
|
|
1613 if (n == 0) {
|
|
|
1614
|
|
206
|
1615 data = text->data;
|
|
|
1616 p = data;
|
|
|
1617
|
|
|
1618 if ((flags & NGX_HTTP_SSI_ADD_PREFIX) && text->data[0] != '/') {
|
|
|
1619
|
|
102
|
1620 for (prefix = r->uri.len; prefix; prefix--) {
|
|
|
1621 if (r->uri.data[prefix - 1] == '/') {
|
|
|
1622 break;
|
|
|
1623 }
|
|
|
1624 }
|
|
|
1625
|
|
|
1626 if (prefix) {
|
|
|
1627 len = prefix + text->len;
|
|
|
1628
|
|
|
1629 data = ngx_palloc(r->pool, len);
|
|
|
1630 if (data == NULL) {
|
|
|
1631 return NGX_ERROR;
|
|
|
1632 }
|
|
|
1633
|
|
122
|
1634 p = ngx_copy(data, r->uri.data, prefix);
|
|
102
|
1635 }
|
|
|
1636 }
|
|
|
1637
|
|
206
|
1638 quoted = 0;
|
|
|
1639
|
|
378
|
1640 for (i = 0; i < text->len; i++) {
|
|
206
|
1641 ch = text->data[i];
|
|
|
1642
|
|
|
1643 if (!quoted) {
|
|
|
1644
|
|
|
1645 if (ch == '\\') {
|
|
|
1646 quoted = 1;
|
|
|
1647 continue;
|
|
|
1648 }
|
|
|
1649
|
|
|
1650 } else {
|
|
|
1651 quoted = 0;
|
|
|
1652
|
|
|
1653 if (ch != '\\' && ch != '\'' && ch != '"' && ch != '$') {
|
|
|
1654 *p++ = '\\';
|
|
|
1655 }
|
|
|
1656 }
|
|
|
1657
|
|
|
1658 *p++ = ch;
|
|
|
1659 }
|
|
|
1660
|
|
|
1661 text->len = p - data;
|
|
|
1662 text->data = data;
|
|
|
1663
|
|
102
|
1664 return NGX_OK;
|
|
|
1665 }
|
|
|
1666
|
|
|
1667 if (ngx_array_init(&lengths, r->pool, 8, sizeof(size_t *)) != NGX_OK) {
|
|
|
1668 return NGX_ERROR;
|
|
|
1669 }
|
|
|
1670
|
|
|
1671 if (ngx_array_init(&values, r->pool, 8, sizeof(u_char *)) != NGX_OK) {
|
|
|
1672 return NGX_ERROR;
|
|
|
1673 }
|
|
|
1674
|
|
|
1675 len = 0;
|
|
|
1676 i = 0;
|
|
|
1677
|
|
|
1678 while (i < text->len) {
|
|
|
1679
|
|
|
1680 if (text->data[i] == '$') {
|
|
|
1681
|
|
|
1682 var.len = 0;
|
|
|
1683
|
|
|
1684 if (++i == text->len) {
|
|
|
1685 goto invalid_variable;
|
|
|
1686 }
|
|
|
1687
|
|
|
1688 if (text->data[i] == '{') {
|
|
|
1689 bracket = 1;
|
|
|
1690
|
|
|
1691 if (++i == text->len) {
|
|
|
1692 goto invalid_variable;
|
|
|
1693 }
|
|
|
1694
|
|
|
1695 var.data = &text->data[i];
|
|
|
1696
|
|
|
1697 } else {
|
|
|
1698 bracket = 0;
|
|
|
1699 var.data = &text->data[i];
|
|
|
1700 }
|
|
|
1701
|
|
|
1702 for ( /* void */ ; i < text->len; i++, var.len++) {
|
|
|
1703 ch = text->data[i];
|
|
|
1704
|
|
|
1705 if (ch == '}' && bracket) {
|
|
|
1706 i++;
|
|
|
1707 bracket = 0;
|
|
|
1708 break;
|
|
|
1709 }
|
|
|
1710
|
|
|
1711 if ((ch >= 'A' && ch <= 'Z')
|
|
|
1712 || (ch >= 'a' && ch <= 'z')
|
|
|
1713 || (ch >= '0' && ch <= '9')
|
|
|
1714 || ch == '_')
|
|
|
1715 {
|
|
|
1716 continue;
|
|
|
1717 }
|
|
|
1718
|
|
|
1719 break;
|
|
|
1720 }
|
|
|
1721
|
|
|
1722 if (bracket) {
|
|
|
1723 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1724 "the closing bracket in \"%V\" "
|
|
|
1725 "variable is missing", &var);
|
|
248
|
1726 return NGX_HTTP_SSI_ERROR;
|
|
102
|
1727 }
|
|
|
1728
|
|
126
|
1729 if (var.len == 0) {
|
|
102
|
1730 goto invalid_variable;
|
|
|
1731 }
|
|
|
1732
|
|
160
|
1733 key = 0;
|
|
|
1734
|
|
102
|
1735 for (j = 0; j < var.len; j++) {
|
|
|
1736 var.data[j] = ngx_tolower(var.data[j]);
|
|
160
|
1737 key = ngx_hash(key, var.data[j]);
|
|
102
|
1738 }
|
|
|
1739
|
|
160
|
1740 val = ngx_http_ssi_get_variable(r, &var, key);
|
|
102
|
1741
|
|
|
1742 if (val == NULL) {
|
|
184
|
1743 vv = ngx_http_get_variable(r, &var, key,
|
|
|
1744 flags & NGX_HTTP_SSI_EXPR_TEST);
|
|
102
|
1745 if (vv == NULL) {
|
|
|
1746 return NGX_ERROR;
|
|
|
1747 }
|
|
|
1748
|
|
122
|
1749 if (vv->not_found) {
|
|
102
|
1750 continue;
|
|
|
1751 }
|
|
|
1752
|
|
122
|
1753 part_data = vv->data;
|
|
|
1754 part_len = vv->len;
|
|
102
|
1755
|
|
|
1756 } else {
|
|
122
|
1757 part_data = val->data;
|
|
|
1758 part_len = val->len;
|
|
102
|
1759 }
|
|
|
1760
|
|
|
1761 } else {
|
|
122
|
1762 part_data = &text->data[i];
|
|
200
|
1763 quoted = 0;
|
|
122
|
1764
|
|
|
1765 for (p = part_data; i < text->len; i++) {
|
|
108
|
1766 ch = text->data[i];
|
|
|
1767
|
|
200
|
1768 if (!quoted) {
|
|
|
1769
|
|
|
1770 if (ch == '\\') {
|
|
|
1771 quoted = 1;
|
|
|
1772 continue;
|
|
|
1773 }
|
|
|
1774
|
|
|
1775 if (ch == '$') {
|
|
108
|
1776 break;
|
|
|
1777 }
|
|
|
1778
|
|
200
|
1779 } else {
|
|
|
1780 quoted = 0;
|
|
|
1781
|
|
|
1782 if (ch != '\\' && ch != '\'' && ch != '"' && ch != '$') {
|
|
|
1783 *p++ = '\\';
|
|
|
1784 }
|
|
108
|
1785 }
|
|
|
1786
|
|
|
1787 *p++ = ch;
|
|
102
|
1788 }
|
|
108
|
1789
|
|
122
|
1790 part_len = p - part_data;
|
|
102
|
1791 }
|
|
|
1792
|
|
122
|
1793 len += part_len;
|
|
102
|
1794
|
|
|
1795 size = ngx_array_push(&lengths);
|
|
|
1796 if (size == NULL) {
|
|
|
1797 return NGX_ERROR;
|
|
|
1798 }
|
|
|
1799
|
|
122
|
1800 *size = part_len;
|
|
102
|
1801
|
|
|
1802 value = ngx_array_push(&values);
|
|
|
1803 if (value == NULL) {
|
|
|
1804 return NGX_ERROR;
|
|
|
1805 }
|
|
|
1806
|
|
122
|
1807 *value = part_data;
|
|
102
|
1808 }
|
|
|
1809
|
|
|
1810 prefix = 0;
|
|
|
1811
|
|
|
1812 size = lengths.elts;
|
|
|
1813 value = values.elts;
|
|
|
1814
|
|
|
1815 if (flags & NGX_HTTP_SSI_ADD_PREFIX) {
|
|
|
1816 for (i = 0; i < values.nelts; i++) {
|
|
|
1817 if (size[i] != 0) {
|
|
|
1818 if (*value[i] != '/') {
|
|
|
1819 for (prefix = r->uri.len; prefix; prefix--) {
|
|
|
1820 if (r->uri.data[prefix - 1] == '/') {
|
|
|
1821 len += prefix;
|
|
|
1822 break;
|
|
|
1823 }
|
|
|
1824 }
|
|
|
1825 }
|
|
|
1826
|
|
|
1827 break;
|
|
|
1828 }
|
|
|
1829 }
|
|
|
1830 }
|
|
|
1831
|
|
178
|
1832 p = ngx_palloc(r->pool, len + ((flags & NGX_HTTP_SSI_ADD_ZERO) ? 1 : 0));
|
|
102
|
1833 if (p == NULL) {
|
|
|
1834 return NGX_ERROR;
|
|
|
1835 }
|
|
|
1836
|
|
|
1837 text->len = len;
|
|
|
1838 text->data = p;
|
|
|
1839
|
|
122
|
1840 p = ngx_copy(p, r->uri.data, prefix);
|
|
102
|
1841
|
|
|
1842 for (i = 0; i < values.nelts; i++) {
|
|
122
|
1843 p = ngx_copy(p, value[i], size[i]);
|
|
102
|
1844 }
|
|
|
1845
|
|
|
1846 return NGX_OK;
|
|
|
1847
|
|
|
1848 invalid_variable:
|
|
|
1849
|
|
|
1850 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1851 "invalid variable name in \"%V\"", text);
|
|
|
1852
|
|
248
|
1853 return NGX_HTTP_SSI_ERROR;
|
|
102
|
1854 }
|
|
|
1855
|
|
|
1856
|
|
|
1857 static ngx_int_t
|
|
|
1858 ngx_http_ssi_include(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
|
|
|
1859 ngx_str_t **params)
|
|
|
1860 {
|
|
342
|
1861 u_char *dst, *src;
|
|
|
1862 size_t len;
|
|
248
|
1863 ngx_int_t rc, key;
|
|
|
1864 ngx_str_t *uri, *file, *wait, *set, *stub, args;
|
|
|
1865 ngx_buf_t *b;
|
|
|
1866 ngx_uint_t flags, i;
|
|
250
|
1867 ngx_chain_t *cl, *tl, **ll, *out;
|
|
248
|
1868 ngx_http_request_t *sr;
|
|
|
1869 ngx_http_ssi_var_t *var;
|
|
|
1870 ngx_http_ssi_ctx_t *mctx;
|
|
|
1871 ngx_http_ssi_block_t *bl;
|
|
|
1872 ngx_http_post_subrequest_t *psr;
|
|
102
|
1873
|
|
|
1874 uri = params[NGX_HTTP_SSI_INCLUDE_VIRTUAL];
|
|
|
1875 file = params[NGX_HTTP_SSI_INCLUDE_FILE];
|
|
194
|
1876 wait = params[NGX_HTTP_SSI_INCLUDE_WAIT];
|
|
248
|
1877 set = params[NGX_HTTP_SSI_INCLUDE_SET];
|
|
216
|
1878 stub = params[NGX_HTTP_SSI_INCLUDE_STUB];
|
|
102
|
1879
|
|
|
1880 if (uri && file) {
|
|
|
1881 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1882 "inlcusion may be either virtual=\"%V\" or file=\"%V\"",
|
|
|
1883 uri, file);
|
|
|
1884 return NGX_HTTP_SSI_ERROR;
|
|
|
1885 }
|
|
|
1886
|
|
|
1887 if (uri == NULL && file == NULL) {
|
|
|
1888 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1889 "no parameter in \"include\" SSI command");
|
|
|
1890 return NGX_HTTP_SSI_ERROR;
|
|
|
1891 }
|
|
|
1892
|
|
248
|
1893 if (set && stub) {
|
|
|
1894 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1895 "\"set\" and \"stub\" may not be used together "
|
|
|
1896 "in \"include\" SSI command");
|
|
|
1897 return NGX_HTTP_SSI_ERROR;
|
|
|
1898 }
|
|
|
1899
|
|
194
|
1900 if (wait) {
|
|
|
1901 if (uri == NULL) {
|
|
|
1902 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
216
|
1903 "\"wait\" may not be used with file=\"%V\"", file);
|
|
194
|
1904 return NGX_HTTP_SSI_ERROR;
|
|
|
1905 }
|
|
|
1906
|
|
286
|
1907 if (wait->len == 2
|
|
|
1908 && ngx_strncasecmp(wait->data, (u_char *) "no", 2) == 0)
|
|
|
1909 {
|
|
194
|
1910 wait = NULL;
|
|
|
1911
|
|
286
|
1912 } else if (wait->len != 3
|
|
|
1913 || ngx_strncasecmp(wait->data, (u_char *) "yes", 3) != 0)
|
|
194
|
1914 {
|
|
|
1915 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1916 "invalid value \"%V\" in the \"wait\" parameter",
|
|
216
|
1917 wait);
|
|
194
|
1918 return NGX_HTTP_SSI_ERROR;
|
|
|
1919 }
|
|
|
1920 }
|
|
|
1921
|
|
102
|
1922 if (uri == NULL) {
|
|
|
1923 uri = file;
|
|
|
1924 }
|
|
|
1925
|
|
248
|
1926 rc = ngx_http_ssi_evaluate_string(r, ctx, uri, NGX_HTTP_SSI_ADD_PREFIX);
|
|
|
1927
|
|
|
1928 if (rc != NGX_OK) {
|
|
|
1929 return rc;
|
|
102
|
1930 }
|
|
|
1931
|
|
342
|
1932 dst = uri->data;
|
|
|
1933 src = uri->data;
|
|
|
1934
|
|
|
1935 ngx_unescape_uri(&dst, &src, uri->len, NGX_UNESCAPE_URI);
|
|
|
1936
|
|
|
1937 len = (uri->data + uri->len) - src;
|
|
|
1938 if (len) {
|
|
|
1939 dst = ngx_copy(dst, src, len);
|
|
|
1940 }
|
|
|
1941
|
|
|
1942 uri->len = dst - uri->data;
|
|
|
1943
|
|
|
1944 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1945 "ssi include: \"%V\"", uri);
|
|
|
1946
|
|
102
|
1947 args.len = 0;
|
|
|
1948 args.data = NULL;
|
|
122
|
1949 flags = 0;
|
|
|
1950
|
|
|
1951 if (ngx_http_parse_unsafe_uri(r, uri, &args, &flags) != NGX_OK) {
|
|
|
1952 return NGX_HTTP_SSI_ERROR;
|
|
102
|
1953 }
|
|
|
1954
|
|
248
|
1955 psr = NULL;
|
|
|
1956
|
|
|
1957 mctx = ngx_http_get_module_ctx(r->main, ngx_http_ssi_filter_module);
|
|
216
|
1958
|
|
|
1959 if (stub) {
|
|
|
1960 if (mctx->blocks) {
|
|
|
1961 bl = mctx->blocks->elts;
|
|
|
1962 for (i = 0; i < mctx->blocks->nelts; i++) {
|
|
|
1963 if (stub->len == bl[i].name.len
|
|
|
1964 && ngx_strncmp(stub->data, bl[i].name.data, stub->len) == 0)
|
|
|
1965 {
|
|
|
1966 goto found;
|
|
|
1967 }
|
|
|
1968 }
|
|
|
1969 }
|
|
|
1970
|
|
|
1971 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1972 "\"stub\"=\"%V\" for \"include\" not found", stub);
|
|
|
1973 return NGX_HTTP_SSI_ERROR;
|
|
|
1974
|
|
|
1975 found:
|
|
|
1976
|
|
248
|
1977 psr = ngx_palloc(r->pool, sizeof(ngx_http_post_subrequest_t));
|
|
|
1978 if (psr == NULL) {
|
|
|
1979 return NGX_ERROR;
|
|
|
1980 }
|
|
|
1981
|
|
|
1982 psr->handler = ngx_http_ssi_stub_output;
|
|
|
1983
|
|
216
|
1984 if (bl[i].count++) {
|
|
|
1985
|
|
366
|
1986 out = NULL;
|
|
250
|
1987 ll = &out;
|
|
216
|
1988
|
|
|
1989 for (tl = bl[i].bufs; tl; tl = tl->next) {
|
|
|
1990
|
|
|
1991 if (ctx->free) {
|
|
|
1992 cl = ctx->free;
|
|
|
1993 ctx->free = ctx->free->next;
|
|
|
1994 b = cl->buf;
|
|
|
1995
|
|
|
1996 } else {
|
|
|
1997 b = ngx_alloc_buf(r->pool);
|
|
|
1998 if (b == NULL) {
|
|
|
1999 return NGX_ERROR;
|
|
|
2000 }
|
|
|
2001
|
|
|
2002 cl = ngx_alloc_chain_link(r->pool);
|
|
|
2003 if (cl == NULL) {
|
|
|
2004 return NGX_ERROR;
|
|
|
2005 }
|
|
|
2006
|
|
|
2007 cl->buf = b;
|
|
|
2008 }
|
|
|
2009
|
|
|
2010 ngx_memcpy(b, tl->buf, sizeof(ngx_buf_t));
|
|
|
2011
|
|
|
2012 b->pos = b->start;
|
|
|
2013
|
|
|
2014 *ll = cl;
|
|
|
2015 cl->next = NULL;
|
|
|
2016 ll = &cl->next;
|
|
|
2017 }
|
|
|
2018
|
|
250
|
2019 psr->data = out;
|
|
|
2020
|
|
216
|
2021 } else {
|
|
248
|
2022 psr->data = bl[i].bufs;
|
|
216
|
2023 }
|
|
|
2024 }
|
|
|
2025
|
|
248
|
2026 if (set) {
|
|
|
2027 key = 0;
|
|
|
2028
|
|
|
2029 for (i = 0; i < set->len; i++) {
|
|
|
2030 set->data[i] = ngx_tolower(set->data[i]);
|
|
|
2031 key = ngx_hash(key, set->data[i]);
|
|
|
2032 }
|
|
|
2033
|
|
|
2034 psr = ngx_palloc(r->pool, sizeof(ngx_http_post_subrequest_t));
|
|
|
2035 if (psr == NULL) {
|
|
|
2036 return NGX_ERROR;
|
|
|
2037 }
|
|
|
2038
|
|
|
2039 psr->handler = ngx_http_ssi_set_variable;
|
|
|
2040 psr->data = ngx_http_ssi_get_variable(r, set, key);
|
|
|
2041
|
|
|
2042 if (psr->data == NULL) {
|
|
|
2043
|
|
|
2044 if (mctx->variables == NULL) {
|
|
|
2045 mctx->variables = ngx_list_create(r->pool, 4,
|
|
|
2046 sizeof(ngx_http_ssi_var_t));
|
|
|
2047 if (mctx->variables == NULL) {
|
|
|
2048 return NGX_ERROR;
|
|
|
2049 }
|
|
|
2050 }
|
|
|
2051
|
|
|
2052 var = ngx_list_push(mctx->variables);
|
|
|
2053 if (var == NULL) {
|
|
|
2054 return NGX_ERROR;
|
|
|
2055 }
|
|
|
2056
|
|
|
2057 var->name = *set;
|
|
|
2058 var->key = key;
|
|
|
2059 var->value = ngx_http_ssi_null_string;
|
|
|
2060 psr->data = &var->value;
|
|
|
2061 }
|
|
|
2062
|
|
|
2063 flags |= NGX_HTTP_SUBREQUEST_IN_MEMORY;
|
|
|
2064 }
|
|
|
2065
|
|
|
2066 rc = ngx_http_subrequest(r, uri, &args, &sr, psr, flags);
|
|
|
2067
|
|
|
2068 if (rc == NGX_DONE) {
|
|
|
2069 return NGX_DONE;
|
|
|
2070 }
|
|
194
|
2071
|
|
|
2072 if (rc == NGX_ERROR) {
|
|
102
|
2073 return NGX_HTTP_SSI_ERROR;
|
|
|
2074 }
|
|
|
2075
|
|
248
|
2076 if (wait == NULL && set == NULL) {
|
|
194
|
2077 return NGX_OK;
|
|
|
2078 }
|
|
|
2079
|
|
|
2080 if (rc == NGX_AGAIN) {
|
|
244
|
2081 if (ctx->wait == NULL) {
|
|
|
2082 ctx->wait = sr;
|
|
|
2083
|
|
|
2084 } else {
|
|
|
2085 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
2086 "only one subrequest may be waited at the same time");
|
|
|
2087 }
|
|
194
|
2088 }
|
|
|
2089
|
|
|
2090 return rc;
|
|
102
|
2091 }
|
|
|
2092
|
|
|
2093
|
|
46
|
2094 static ngx_int_t
|
|
248
|
2095 ngx_http_ssi_stub_output(ngx_http_request_t *r, void *data, ngx_int_t rc)
|
|
|
2096 {
|
|
|
2097 ngx_chain_t *out;
|
|
|
2098
|
|
|
2099 if (rc == NGX_ERROR || r->connection->error || r->request_output) {
|
|
|
2100 return rc;
|
|
|
2101 }
|
|
|
2102
|
|
|
2103 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2104 "ssi stub output: \"%V?%V\"", &r->uri, &r->args);
|
|
|
2105
|
|
|
2106 out = data;
|
|
|
2107
|
|
|
2108 if (!r->header_sent) {
|
|
|
2109 if (ngx_http_set_content_type(r) == NGX_ERROR) {
|
|
|
2110 return NGX_ERROR;
|
|
|
2111 }
|
|
|
2112
|
|
|
2113 if (ngx_http_send_header(r) == NGX_ERROR) {
|
|
|
2114 return NGX_ERROR;
|
|
|
2115 }
|
|
|
2116 }
|
|
|
2117
|
|
|
2118 return ngx_http_output_filter(r, out);
|
|
|
2119 }
|
|
|
2120
|
|
|
2121
|
|
|
2122 static ngx_int_t
|
|
|
2123 ngx_http_ssi_set_variable(ngx_http_request_t *r, void *data, ngx_int_t rc)
|
|
|
2124 {
|
|
|
2125 ngx_str_t *value = data;
|
|
|
2126
|
|
|
2127 if (r->upstream) {
|
|
|
2128 value->len = r->upstream->buffer.last - r->upstream->buffer.pos;
|
|
|
2129 value->data = r->upstream->buffer.pos;
|
|
|
2130 }
|
|
|
2131
|
|
|
2132 return rc;
|
|
|
2133 }
|
|
|
2134
|
|
|
2135
|
|
|
2136 static ngx_int_t
|
|
46
|
2137 ngx_http_ssi_echo(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
|
|
|
2138 ngx_str_t **params)
|
|
|
2139 {
|
|
340
|
2140 u_char *p;
|
|
|
2141 uintptr_t len;
|
|
160
|
2142 ngx_int_t key;
|
|
50
|
2143 ngx_uint_t i;
|
|
48
|
2144 ngx_buf_t *b;
|
|
340
|
2145 ngx_str_t *var, *value, *enc, text;
|
|
48
|
2146 ngx_chain_t *cl;
|
|
50
|
2147 ngx_http_variable_value_t *vv;
|
|
46
|
2148
|
|
|
2149 var = params[NGX_HTTP_SSI_ECHO_VAR];
|
|
|
2150
|
|
192
|
2151 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2152 "ssi echo \"%V\"", var);
|
|
|
2153
|
|
160
|
2154 key = 0;
|
|
|
2155
|
|
|
2156 for (i = 0; i < var->len; i++) {
|
|
|
2157 var->data[i] = ngx_tolower(var->data[i]);
|
|
|
2158 key = ngx_hash(key, var->data[i]);
|
|
|
2159 }
|
|
|
2160
|
|
|
2161 value = ngx_http_ssi_get_variable(r, var, key);
|
|
102
|
2162
|
|
|
2163 if (value == NULL) {
|
|
184
|
2164 vv = ngx_http_get_variable(r, var, key, 1);
|
|
102
|
2165
|
|
|
2166 if (vv == NULL) {
|
|
|
2167 return NGX_HTTP_SSI_ERROR;
|
|
|
2168 }
|
|
|
2169
|
|
122
|
2170 if (!vv->not_found) {
|
|
|
2171 text.data = vv->data;
|
|
|
2172 text.len = vv->len;
|
|
|
2173 value = &text;
|
|
102
|
2174 }
|
|
50
|
2175 }
|
|
46
|
2176
|
|
102
|
2177 if (value == NULL) {
|
|
48
|
2178 value = params[NGX_HTTP_SSI_ECHO_DEFAULT];
|
|
|
2179
|
|
|
2180 if (value == NULL) {
|
|
|
2181 value = &ngx_http_ssi_none;
|
|
|
2182
|
|
|
2183 } else if (value->len == 0) {
|
|
|
2184 return NGX_OK;
|
|
|
2185 }
|
|
|
2186
|
|
|
2187 } else {
|
|
|
2188 if (value->len == 0) {
|
|
|
2189 return NGX_OK;
|
|
|
2190 }
|
|
|
2191 }
|
|
|
2192
|
|
340
|
2193 enc = params[NGX_HTTP_SSI_ECHO_ENCODING];
|
|
|
2194
|
|
|
2195 if (enc) {
|
|
|
2196 if (enc->len == 4 && ngx_strncmp(enc->data, "none", 4) == 0) {
|
|
|
2197
|
|
|
2198 ctx->encoding = NGX_HTTP_SSI_NO_ENCODING;
|
|
|
2199
|
|
|
2200 } else if (enc->len == 3 && ngx_strncmp(enc->data, "url", 3) == 0) {
|
|
|
2201
|
|
|
2202 ctx->encoding = NGX_HTTP_SSI_URL_ENCODING;
|
|
|
2203
|
|
|
2204 } else if (enc->len == 6 && ngx_strncmp(enc->data, "entity", 6) == 0) {
|
|
|
2205
|
|
|
2206 ctx->encoding = NGX_HTTP_SSI_ENTITY_ENCODING;
|
|
|
2207
|
|
|
2208 } else {
|
|
|
2209 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
2210 "unknown encoding \"%V\" in the \"echo\" command",
|
|
|
2211 enc);
|
|
|
2212 }
|
|
|
2213 }
|
|
|
2214
|
|
|
2215 switch (ctx->encoding) {
|
|
|
2216
|
|
|
2217 case NGX_HTTP_SSI_NO_ENCODING:
|
|
|
2218 break;
|
|
|
2219
|
|
|
2220 case NGX_HTTP_SSI_URL_ENCODING:
|
|
|
2221 len = 2 * ngx_escape_uri(NULL, value->data, value->len,
|
|
|
2222 NGX_ESCAPE_HTML);
|
|
|
2223
|
|
|
2224 if (len) {
|
|
|
2225 p = ngx_palloc(r->pool, value->len + len);
|
|
|
2226 if (p == NULL) {
|
|
|
2227 return NGX_HTTP_SSI_ERROR;
|
|
|
2228 }
|
|
|
2229
|
|
|
2230 (void) ngx_escape_uri(p, value->data, value->len, NGX_ESCAPE_HTML);
|
|
|
2231
|
|
|
2232 value->len += len;
|
|
|
2233 value->data = p;
|
|
|
2234 }
|
|
|
2235
|
|
|
2236 break;
|
|
|
2237
|
|
|
2238 case NGX_HTTP_SSI_ENTITY_ENCODING:
|
|
|
2239 len = ngx_escape_html(NULL, value->data, value->len);
|
|
|
2240
|
|
|
2241 if (len) {
|
|
|
2242 p = ngx_palloc(r->pool, value->len + len);
|
|
|
2243 if (p == NULL) {
|
|
|
2244 return NGX_HTTP_SSI_ERROR;
|
|
|
2245 }
|
|
|
2246
|
|
|
2247 (void) ngx_escape_html(p, value->data, value->len);
|
|
|
2248
|
|
|
2249 value->len += len;
|
|
|
2250 value->data = p;
|
|
|
2251 }
|
|
|
2252
|
|
|
2253 break;
|
|
|
2254 }
|
|
|
2255
|
|
48
|
2256 b = ngx_calloc_buf(r->pool);
|
|
|
2257 if (b == NULL) {
|
|
|
2258 return NGX_HTTP_SSI_ERROR;
|
|
|
2259 }
|
|
|
2260
|
|
|
2261 cl = ngx_alloc_chain_link(r->pool);
|
|
|
2262 if (cl == NULL) {
|
|
46
|
2263 return NGX_HTTP_SSI_ERROR;
|
|
|
2264 }
|
|
|
2265
|
|
|
2266 b->memory = 1;
|
|
|
2267 b->pos = value->data;
|
|
|
2268 b->last = value->data + value->len;
|
|
|
2269
|
|
|
2270 cl->buf = b;
|
|
|
2271 cl->next = NULL;
|
|
|
2272 *ctx->last_out = cl;
|
|
|
2273 ctx->last_out = &cl->next;
|
|
|
2274
|
|
|
2275 return NGX_OK;
|
|
|
2276 }
|
|
|
2277
|
|
|
2278
|
|
58
|
2279 static ngx_int_t
|
|
|
2280 ngx_http_ssi_config(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
|
|
|
2281 ngx_str_t **params)
|
|
|
2282 {
|
|
|
2283 ngx_str_t *value;
|
|
|
2284
|
|
|
2285 value = params[NGX_HTTP_SSI_CONFIG_TIMEFMT];
|
|
|
2286
|
|
|
2287 if (value) {
|
|
138
|
2288 ctx->timefmt.len = value->len;
|
|
|
2289 ctx->timefmt.data = ngx_palloc(r->pool, value->len + 1);
|
|
|
2290 if (ctx->timefmt.data == NULL) {
|
|
|
2291 return NGX_HTTP_SSI_ERROR;
|
|
|
2292 }
|
|
|
2293
|
|
|
2294 ngx_cpystrn(ctx->timefmt.data, value->data, value->len + 1);
|
|
58
|
2295 }
|
|
|
2296
|
|
96
|
2297 value = params[NGX_HTTP_SSI_CONFIG_ERRMSG];
|
|
|
2298
|
|
|
2299 if (value) {
|
|
|
2300 ctx->errmsg = *value;
|
|
|
2301 }
|
|
|
2302
|
|
58
|
2303 return NGX_OK;
|
|
|
2304 }
|
|
|
2305
|
|
|
2306
|
|
|
2307 static ngx_int_t
|
|
102
|
2308 ngx_http_ssi_set(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
|
|
58
|
2309 ngx_str_t **params)
|
|
|
2310 {
|
|
248
|
2311 ngx_int_t key, rc;
|
|
160
|
2312 ngx_uint_t i;
|
|
102
|
2313 ngx_str_t *name, *value, *vv;
|
|
|
2314 ngx_http_ssi_var_t *var;
|
|
|
2315 ngx_http_ssi_ctx_t *mctx;
|
|
|
2316
|
|
|
2317 mctx = ngx_http_get_module_ctx(r->main, ngx_http_ssi_filter_module);
|
|
|
2318
|
|
216
|
2319 if (mctx->variables == NULL) {
|
|
248
|
2320 mctx->variables = ngx_list_create(r->pool, 4,
|
|
|
2321 sizeof(ngx_http_ssi_var_t));
|
|
216
|
2322 if (mctx->variables == NULL) {
|
|
248
|
2323 return NGX_ERROR;
|
|
58
|
2324 }
|
|
|
2325 }
|
|
|
2326
|
|
102
|
2327 name = params[NGX_HTTP_SSI_SET_VAR];
|
|
|
2328 value = params[NGX_HTTP_SSI_SET_VALUE];
|
|
|
2329
|
|
192
|
2330 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2331 "ssi set \"%V\" \"%V\"", name, value);
|
|
|
2332
|
|
248
|
2333 rc = ngx_http_ssi_evaluate_string(r, ctx, value, 0);
|
|
|
2334
|
|
|
2335 if (rc != NGX_OK) {
|
|
|
2336 return rc;
|
|
58
|
2337 }
|
|
|
2338
|
|
160
|
2339 key = 0;
|
|
|
2340
|
|
|
2341 for (i = 0; i < name->len; i++) {
|
|
|
2342 name->data[i] = ngx_tolower(name->data[i]);
|
|
|
2343 key = ngx_hash(key, name->data[i]);
|
|
|
2344 }
|
|
|
2345
|
|
|
2346 vv = ngx_http_ssi_get_variable(r, name, key);
|
|
102
|
2347
|
|
|
2348 if (vv) {
|
|
|
2349 *vv = *value;
|
|
|
2350 return NGX_OK;
|
|
|
2351 }
|
|
|
2352
|
|
248
|
2353 var = ngx_list_push(mctx->variables);
|
|
102
|
2354 if (var == NULL) {
|
|
248
|
2355 return NGX_ERROR;
|
|
102
|
2356 }
|
|
|
2357
|
|
|
2358 var->name = *name;
|
|
160
|
2359 var->key = key;
|
|
102
|
2360 var->value = *value;
|
|
|
2361
|
|
|
2362 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2363 "set: \"%V\"=\"%V\"", name, value);
|
|
|
2364
|
|
58
|
2365 return NGX_OK;
|
|
|
2366 }
|
|
|
2367
|
|
|
2368
|
|
|
2369 static ngx_int_t
|
|
|
2370 ngx_http_ssi_if(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
|
|
|
2371 ngx_str_t **params)
|
|
|
2372 {
|
|
102
|
2373 u_char *p, *last;
|
|
|
2374 ngx_str_t *expr, left, right;
|
|
|
2375 ngx_int_t rc;
|
|
178
|
2376 ngx_uint_t negative, noregex, flags;
|
|
58
|
2377
|
|
178
|
2378 if (ctx->command.len == 2) {
|
|
|
2379 if (ctx->conditional) {
|
|
|
2380 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
2381 "the \"if\" command inside the \"if\" command");
|
|
|
2382 return NGX_HTTP_SSI_ERROR;
|
|
|
2383 }
|
|
|
2384 }
|
|
|
2385
|
|
|
2386 if (ctx->output_chosen) {
|
|
|
2387 ctx->output = 0;
|
|
|
2388 return NGX_OK;
|
|
|
2389 }
|
|
|
2390
|
|
58
|
2391 expr = params[NGX_HTTP_SSI_IF_EXPR];
|
|
|
2392
|
|
192
|
2393 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2394 "ssi if expr=\"%V\"", expr);
|
|
|
2395
|
|
102
|
2396 left.data = expr->data;
|
|
100
|
2397 last = expr->data + expr->len;
|
|
|
2398
|
|
102
|
2399 for (p = left.data; p < last; p++) {
|
|
100
|
2400 if (*p >= 'A' && *p <= 'Z') {
|
|
|
2401 *p |= 0x20;
|
|
|
2402 continue;
|
|
|
2403 }
|
|
58
|
2404
|
|
102
|
2405 if ((*p >= 'a' && *p <= 'z')
|
|
|
2406 || (*p >= '0' && *p <= '9')
|
|
122
|
2407 || *p == '$' || *p == '{' || *p == '}' || *p == '_'
|
|
|
2408 || *p == '"' || *p == '\'')
|
|
102
|
2409 {
|
|
100
|
2410 continue;
|
|
|
2411 }
|
|
|
2412
|
|
|
2413 break;
|
|
|
2414 }
|
|
|
2415
|
|
102
|
2416 left.len = p - left.data;
|
|
100
|
2417
|
|
|
2418 while (p < last && *p == ' ') {
|
|
|
2419 p++;
|
|
58
|
2420 }
|
|
|
2421
|
|
184
|
2422 flags = (p == last) ? NGX_HTTP_SSI_EXPR_TEST : 0;
|
|
|
2423
|
|
102
|
2424 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2425 "left: \"%V\"", &left);
|
|
|
2426
|
|
248
|
2427 rc = ngx_http_ssi_evaluate_string(r, ctx, &left, flags);
|
|
|
2428
|
|
|
2429 if (rc != NGX_OK) {
|
|
|
2430 return rc;
|
|
58
|
2431 }
|
|
|
2432
|
|
102
|
2433 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2434 "evaluted left: \"%V\"", &left);
|
|
|
2435
|
|
100
|
2436 if (p == last) {
|
|
102
|
2437 if (left.len) {
|
|
100
|
2438 ctx->output = 1;
|
|
178
|
2439 ctx->output_chosen = 1;
|
|
100
|
2440
|
|
|
2441 } else {
|
|
|
2442 ctx->output = 0;
|
|
|
2443 }
|
|
|
2444
|
|
178
|
2445 ctx->conditional = NGX_HTTP_SSI_COND_IF;
|
|
|
2446
|
|
100
|
2447 return NGX_OK;
|
|
|
2448 }
|
|
|
2449
|
|
|
2450 if (p < last && *p == '=') {
|
|
|
2451 negative = 0;
|
|
|
2452 p++;
|
|
|
2453
|
|
|
2454 } else if (p + 1 < last && *p == '!' && *(p + 1) == '=') {
|
|
|
2455 negative = 1;
|
|
|
2456 p += 2;
|
|
|
2457
|
|
|
2458 } else {
|
|
|
2459 goto invalid_expression;
|
|
|
2460 }
|
|
|
2461
|
|
|
2462 while (p < last && *p == ' ') {
|
|
|
2463 p++;
|
|
|
2464 }
|
|
|
2465
|
|
300
|
2466 if (p < last - 1 && *p == '/') {
|
|
100
|
2467 if (*(last - 1) != '/') {
|
|
|
2468 goto invalid_expression;
|
|
|
2469 }
|
|
|
2470
|
|
|
2471 noregex = 0;
|
|
178
|
2472 flags = NGX_HTTP_SSI_ADD_ZERO;
|
|
100
|
2473 last--;
|
|
274
|
2474 p++;
|
|
100
|
2475
|
|
|
2476 } else {
|
|
|
2477 noregex = 1;
|
|
178
|
2478 flags = 0;
|
|
|
2479
|
|
|
2480 if (p < last - 1 && p[0] == '\\' && p[1] == '/') {
|
|
200
|
2481 p++;
|
|
178
|
2482 }
|
|
100
|
2483 }
|
|
|
2484
|
|
|
2485 right.len = last - p;
|
|
|
2486 right.data = p;
|
|
|
2487
|
|
102
|
2488 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2489 "right: \"%V\"", &right);
|
|
|
2490
|
|
248
|
2491 rc = ngx_http_ssi_evaluate_string(r, ctx, &right, flags);
|
|
|
2492
|
|
|
2493 if (rc != NGX_OK) {
|
|
|
2494 return rc;
|
|
100
|
2495 }
|
|
|
2496
|
|
102
|
2497 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2498 "evaluted right: \"%V\"", &right);
|
|
100
|
2499
|
|
|
2500 if (noregex) {
|
|
|
2501 if (left.len != right.len) {
|
|
|
2502 rc = -1;
|
|
|
2503
|
|
|
2504 } else {
|
|
|
2505 rc = ngx_strncmp(left.data, right.data, right.len);
|
|
|
2506 }
|
|
|
2507
|
|
|
2508 } else {
|
|
|
2509 #if (NGX_PCRE)
|
|
356
|
2510 ngx_str_t err;
|
|
|
2511 ngx_regex_t *regex;
|
|
|
2512 u_char errstr[NGX_MAX_CONF_ERRSTR];
|
|
|
2513
|
|
100
|
2514 err.len = NGX_MAX_CONF_ERRSTR;
|
|
|
2515 err.data = errstr;
|
|
|
2516
|
|
|
2517 right.data[right.len] = '\0';
|
|
|
2518
|
|
|
2519 regex = ngx_regex_compile(&right, 0, r->pool, &err);
|
|
|
2520
|
|
|
2521 if (regex == NULL) {
|
|
|
2522 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "%s", err.data);
|
|
|
2523 return NGX_HTTP_SSI_ERROR;
|
|
|
2524 }
|
|
|
2525
|
|
|
2526 rc = ngx_regex_exec(regex, &left, NULL, 0);
|
|
|
2527
|
|
|
2528 if (rc != NGX_REGEX_NO_MATCHED && rc < 0) {
|
|
|
2529 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
|
|
|
2530 ngx_regex_exec_n " failed: %d on \"%V\" using \"%V\"",
|
|
|
2531 rc, &left, &right);
|
|
|
2532 return NGX_HTTP_SSI_ERROR;
|
|
|
2533 }
|
|
|
2534 #else
|
|
|
2535 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
|
|
|
2536 "the using of the regex \"%V\" in SSI "
|
|
|
2537 "requires PCRE library", &right);
|
|
|
2538
|
|
|
2539 return NGX_HTTP_SSI_ERROR;
|
|
|
2540 #endif
|
|
|
2541 }
|
|
|
2542
|
|
|
2543 if ((rc == 0 && !negative) || (rc != 0 && negative)) {
|
|
58
|
2544 ctx->output = 1;
|
|
178
|
2545 ctx->output_chosen = 1;
|
|
58
|
2546
|
|
|
2547 } else {
|
|
|
2548 ctx->output = 0;
|
|
|
2549 }
|
|
|
2550
|
|
178
|
2551 ctx->conditional = NGX_HTTP_SSI_COND_IF;
|
|
|
2552
|
|
58
|
2553 return NGX_OK;
|
|
100
|
2554
|
|
|
2555 invalid_expression:
|
|
|
2556
|
|
|
2557 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
2558 "invalid expression in \"%V\"", expr);
|
|
|
2559
|
|
|
2560 return NGX_HTTP_SSI_ERROR;
|
|
58
|
2561 }
|
|
|
2562
|
|
|
2563
|
|
|
2564 static ngx_int_t
|
|
|
2565 ngx_http_ssi_else(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
|
|
|
2566 ngx_str_t **params)
|
|
|
2567 {
|
|
192
|
2568 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2569 "ssi else");
|
|
|
2570
|
|
178
|
2571 if (ctx->output_chosen) {
|
|
|
2572 ctx->output = 0;
|
|
|
2573 } else {
|
|
|
2574 ctx->output = 1;
|
|
|
2575 }
|
|
|
2576
|
|
|
2577 ctx->conditional = NGX_HTTP_SSI_COND_ELSE;
|
|
58
|
2578
|
|
|
2579 return NGX_OK;
|
|
|
2580 }
|
|
|
2581
|
|
|
2582
|
|
|
2583 static ngx_int_t
|
|
|
2584 ngx_http_ssi_endif(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
|
|
|
2585 ngx_str_t **params)
|
|
|
2586 {
|
|
192
|
2587 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2588 "ssi endif");
|
|
|
2589
|
|
58
|
2590 ctx->output = 1;
|
|
178
|
2591 ctx->output_chosen = 0;
|
|
|
2592 ctx->conditional = 0;
|
|
58
|
2593
|
|
|
2594 return NGX_OK;
|
|
|
2595 }
|
|
|
2596
|
|
|
2597
|
|
122
|
2598 static ngx_int_t
|
|
216
|
2599 ngx_http_ssi_block(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
|
|
|
2600 ngx_str_t **params)
|
|
|
2601 {
|
|
|
2602 ngx_http_ssi_ctx_t *mctx;
|
|
|
2603 ngx_http_ssi_block_t *bl;
|
|
|
2604
|
|
|
2605 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2606 "ssi block");
|
|
|
2607
|
|
|
2608 mctx = ngx_http_get_module_ctx(r->main, ngx_http_ssi_filter_module);
|
|
|
2609
|
|
|
2610 if (mctx->blocks == NULL) {
|
|
|
2611 mctx->blocks = ngx_array_create(r->pool, 4,
|
|
|
2612 sizeof(ngx_http_ssi_block_t));
|
|
|
2613 if (mctx->blocks == NULL) {
|
|
|
2614 return NGX_HTTP_SSI_ERROR;
|
|
|
2615 }
|
|
|
2616 }
|
|
|
2617
|
|
|
2618 bl = ngx_array_push(mctx->blocks);
|
|
|
2619 if (bl == NULL) {
|
|
|
2620 return NGX_HTTP_SSI_ERROR;
|
|
|
2621 }
|
|
|
2622
|
|
|
2623 bl->name = *params[NGX_HTTP_SSI_BLOCK_NAME];
|
|
|
2624 bl->bufs = NULL;
|
|
|
2625 bl->count = 0;
|
|
|
2626
|
|
|
2627 ctx->output = 0;
|
|
|
2628 ctx->block = 1;
|
|
|
2629
|
|
|
2630 return NGX_OK;
|
|
|
2631 }
|
|
|
2632
|
|
|
2633
|
|
|
2634 static ngx_int_t
|
|
|
2635 ngx_http_ssi_endblock(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
|
|
|
2636 ngx_str_t **params)
|
|
|
2637 {
|
|
|
2638 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2639 "ssi endblock");
|
|
|
2640
|
|
|
2641 ctx->output = 1;
|
|
|
2642 ctx->block = 0;
|
|
|
2643
|
|
|
2644 return NGX_OK;
|
|
|
2645 }
|
|
|
2646
|
|
|
2647
|
|
|
2648 static ngx_int_t
|
|
122
|
2649 ngx_http_ssi_date_gmt_local_variable(ngx_http_request_t *r,
|
|
380
|
2650 ngx_http_variable_value_t *v, uintptr_t gmt)
|
|
58
|
2651 {
|
|
122
|
2652 ngx_http_ssi_ctx_t *ctx;
|
|
|
2653 ngx_time_t *tp;
|
|
|
2654 struct tm tm;
|
|
|
2655 char buf[NGX_HTTP_SSI_DATE_LEN];
|
|
|
2656
|
|
126
|
2657 v->valid = 1;
|
|
340
|
2658 v->no_cacheable = 0;
|
|
122
|
2659 v->not_found = 0;
|
|
58
|
2660
|
|
112
|
2661 tp = ngx_timeofday();
|
|
|
2662
|
|
58
|
2663 ctx = ngx_http_get_module_ctx(r, ngx_http_ssi_filter_module);
|
|
|
2664
|
|
340
|
2665 if (ctx == NULL
|
|
|
2666 || (ctx->timefmt.len == sizeof("%s") - 1
|
|
|
2667 && ctx->timefmt.data[0] == '%' && ctx->timefmt.data[1] == 's'))
|
|
58
|
2668 {
|
|
122
|
2669 v->data = ngx_palloc(r->pool, NGX_TIME_T_LEN);
|
|
|
2670 if (v->data == NULL) {
|
|
|
2671 return NGX_ERROR;
|
|
58
|
2672 }
|
|
|
2673
|
|
122
|
2674 v->len = ngx_sprintf(v->data, "%T", tp->sec + (gmt ? 0 : tp->gmtoff))
|
|
|
2675 - v->data;
|
|
206
|
2676
|
|
122
|
2677 return NGX_OK;
|
|
58
|
2678 }
|
|
|
2679
|
|
|
2680 if (gmt) {
|
|
112
|
2681 ngx_libc_gmtime(tp->sec, &tm);
|
|
58
|
2682 } else {
|
|
112
|
2683 ngx_libc_localtime(tp->sec, &tm);
|
|
58
|
2684 }
|
|
|
2685
|
|
122
|
2686 v->len = strftime(buf, NGX_HTTP_SSI_DATE_LEN,
|
|
|
2687 (char *) ctx->timefmt.data, &tm);
|
|
|
2688 if (v->len == 0) {
|
|
|
2689 return NGX_ERROR;
|
|
58
|
2690 }
|
|
|
2691
|
|
122
|
2692 v->data = ngx_palloc(r->pool, v->len);
|
|
|
2693 if (v->data == NULL) {
|
|
|
2694 return NGX_ERROR;
|
|
58
|
2695 }
|
|
|
2696
|
|
122
|
2697 ngx_memcpy(v->data, buf, v->len);
|
|
|
2698
|
|
|
2699 return NGX_OK;
|
|
58
|
2700 }
|
|
|
2701
|
|
|
2702
|
|
76
|
2703 static char *
|
|
|
2704 ngx_http_ssi_types(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
2705 {
|
|
146
|
2706 ngx_http_ssi_loc_conf_t *slcf = conf;
|
|
76
|
2707
|
|
|
2708 ngx_str_t *value, *type;
|
|
|
2709 ngx_uint_t i;
|
|
|
2710
|
|
146
|
2711 if (slcf->types == NULL) {
|
|
|
2712 slcf->types = ngx_array_create(cf->pool, 4, sizeof(ngx_str_t));
|
|
|
2713 if (slcf->types == NULL) {
|
|
76
|
2714 return NGX_CONF_ERROR;
|
|
|
2715 }
|
|
|
2716
|
|
146
|
2717 type = ngx_array_push(slcf->types);
|
|
76
|
2718 if (type == NULL) {
|
|
|
2719 return NGX_CONF_ERROR;
|
|
|
2720 }
|
|
|
2721
|
|
|
2722 type->len = sizeof("text/html") - 1;
|
|
|
2723 type->data = (u_char *) "text/html";
|
|
|
2724 }
|
|
|
2725
|
|
|
2726 value = cf->args->elts;
|
|
|
2727
|
|
|
2728 for (i = 1; i < cf->args->nelts; i++) {
|
|
|
2729
|
|
|
2730 if (ngx_strcmp(value[i].data, "text/html") == 0) {
|
|
|
2731 continue;
|
|
|
2732 }
|
|
|
2733
|
|
146
|
2734 type = ngx_array_push(slcf->types);
|
|
76
|
2735 if (type == NULL) {
|
|
|
2736 return NGX_CONF_ERROR;
|
|
|
2737 }
|
|
|
2738
|
|
|
2739 type->len = value[i].len;
|
|
|
2740
|
|
|
2741 type->data = ngx_palloc(cf->pool, type->len + 1);
|
|
|
2742 if (type->data == NULL) {
|
|
|
2743 return NGX_CONF_ERROR;
|
|
|
2744 }
|
|
|
2745
|
|
|
2746 ngx_cpystrn(type->data, value[i].data, type->len + 1);
|
|
|
2747 }
|
|
|
2748
|
|
|
2749 return NGX_CONF_OK;
|
|
|
2750 }
|
|
|
2751
|
|
|
2752
|
|
58
|
2753 static ngx_int_t
|
|
146
|
2754 ngx_http_ssi_preconfiguration(ngx_conf_t *cf)
|
|
58
|
2755 {
|
|
146
|
2756 ngx_int_t rc;
|
|
|
2757 ngx_http_variable_t *var, *v;
|
|
|
2758 ngx_http_ssi_command_t *cmd;
|
|
|
2759 ngx_http_ssi_main_conf_t *smcf;
|
|
58
|
2760
|
|
|
2761 for (v = ngx_http_ssi_vars; v->name.len; v++) {
|
|
|
2762 var = ngx_http_add_variable(cf, &v->name, v->flags);
|
|
|
2763 if (var == NULL) {
|
|
|
2764 return NGX_ERROR;
|
|
|
2765 }
|
|
|
2766
|
|
186
|
2767 var->get_handler = v->get_handler;
|
|
58
|
2768 var->data = v->data;
|
|
|
2769 }
|
|
|
2770
|
|
146
|
2771 smcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_ssi_filter_module);
|
|
|
2772
|
|
|
2773 for (cmd = ngx_http_ssi_commands; cmd->name.len; cmd++) {
|
|
|
2774 rc = ngx_hash_add_key(&smcf->commands, &cmd->name, cmd,
|
|
|
2775 NGX_HASH_READONLY_KEY);
|
|
|
2776
|
|
|
2777 if (rc == NGX_OK) {
|
|
|
2778 continue;
|
|
|
2779 }
|
|
|
2780
|
|
|
2781 if (rc == NGX_BUSY) {
|
|
|
2782 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
2783 "conflicting SSI command \"%V\"", &cmd->name);
|
|
|
2784 }
|
|
|
2785
|
|
|
2786 return NGX_ERROR;
|
|
|
2787 }
|
|
|
2788
|
|
126
|
2789 return NGX_OK;
|
|
58
|
2790 }
|
|
|
2791
|
|
|
2792
|
|
46
|
2793 static void *
|
|
146
|
2794 ngx_http_ssi_create_main_conf(ngx_conf_t *cf)
|
|
|
2795 {
|
|
|
2796 ngx_http_ssi_main_conf_t *smcf;
|
|
|
2797
|
|
|
2798 smcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_ssi_main_conf_t));
|
|
|
2799 if (smcf == NULL) {
|
|
|
2800 return NGX_CONF_ERROR;
|
|
|
2801 }
|
|
|
2802
|
|
|
2803 smcf->commands.pool = cf->pool;
|
|
|
2804 smcf->commands.temp_pool = cf->temp_pool;
|
|
|
2805
|
|
|
2806 if (ngx_hash_keys_array_init(&smcf->commands, NGX_HASH_SMALL) != NGX_OK) {
|
|
|
2807 return NGX_CONF_ERROR;
|
|
|
2808 }
|
|
|
2809
|
|
|
2810 return smcf;
|
|
|
2811 }
|
|
|
2812
|
|
|
2813
|
|
|
2814 static char *
|
|
|
2815 ngx_http_ssi_init_main_conf(ngx_conf_t *cf, void *conf)
|
|
|
2816 {
|
|
|
2817 ngx_http_ssi_main_conf_t *smcf = conf;
|
|
|
2818
|
|
|
2819 ngx_hash_init_t hash;
|
|
|
2820
|
|
|
2821 hash.hash = &smcf->hash;
|
|
|
2822 hash.key = ngx_hash_key;
|
|
|
2823 hash.max_size = 1024;
|
|
|
2824 hash.bucket_size = ngx_cacheline_size;
|
|
|
2825 hash.name = "ssi_command_hash";
|
|
|
2826 hash.pool = cf->pool;
|
|
|
2827 hash.temp_pool = NULL;
|
|
|
2828
|
|
|
2829 if (ngx_hash_init(&hash, smcf->commands.keys.elts,
|
|
|
2830 smcf->commands.keys.nelts)
|
|
|
2831 != NGX_OK)
|
|
|
2832 {
|
|
|
2833 return NGX_CONF_ERROR;
|
|
|
2834 }
|
|
|
2835
|
|
|
2836 return NGX_CONF_OK;
|
|
|
2837 }
|
|
|
2838
|
|
|
2839
|
|
|
2840 static void *
|
|
296
|
2841 ngx_http_ssi_create_loc_conf(ngx_conf_t *cf)
|
|
46
|
2842 {
|
|
146
|
2843 ngx_http_ssi_loc_conf_t *slcf;
|
|
|
2844
|
|
|
2845 slcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_ssi_loc_conf_t));
|
|
|
2846 if (slcf == NULL) {
|
|
46
|
2847 return NGX_CONF_ERROR;
|
|
|
2848 }
|
|
|
2849
|
|
76
|
2850 /*
|
|
|
2851 * set by ngx_pcalloc():
|
|
|
2852 *
|
|
|
2853 * conf->types = NULL;
|
|
|
2854 */
|
|
|
2855
|
|
146
|
2856 slcf->enable = NGX_CONF_UNSET;
|
|
|
2857 slcf->silent_errors = NGX_CONF_UNSET;
|
|
|
2858 slcf->ignore_recycled_buffers = NGX_CONF_UNSET;
|
|
|
2859
|
|
|
2860 slcf->min_file_chunk = NGX_CONF_UNSET_SIZE;
|
|
|
2861 slcf->value_len = NGX_CONF_UNSET_SIZE;
|
|
|
2862
|
|
|
2863 return slcf;
|
|
46
|
2864 }
|
|
|
2865
|
|
|
2866
|
|
|
2867 static char *
|
|
296
|
2868 ngx_http_ssi_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child)
|
|
46
|
2869 {
|
|
146
|
2870 ngx_http_ssi_loc_conf_t *prev = parent;
|
|
|
2871 ngx_http_ssi_loc_conf_t *conf = child;
|
|
46
|
2872
|
|
76
|
2873 ngx_str_t *type;
|
|
|
2874
|
|
46
|
2875 ngx_conf_merge_value(conf->enable, prev->enable, 0);
|
|
|
2876 ngx_conf_merge_value(conf->silent_errors, prev->silent_errors, 0);
|
|
58
|
2877 ngx_conf_merge_value(conf->ignore_recycled_buffers,
|
|
|
2878 prev->ignore_recycled_buffers, 0);
|
|
46
|
2879
|
|
|
2880 ngx_conf_merge_size_value(conf->min_file_chunk, prev->min_file_chunk, 1024);
|
|
|
2881 ngx_conf_merge_size_value(conf->value_len, prev->value_len, 256);
|
|
|
2882
|
|
76
|
2883 if (conf->types == NULL) {
|
|
|
2884 if (prev->types == NULL) {
|
|
|
2885 conf->types = ngx_array_create(cf->pool, 1, sizeof(ngx_str_t));
|
|
|
2886 if (conf->types == NULL) {
|
|
|
2887 return NGX_CONF_ERROR;
|
|
|
2888 }
|
|
|
2889
|
|
|
2890 type = ngx_array_push(conf->types);
|
|
|
2891 if (type == NULL) {
|
|
|
2892 return NGX_CONF_ERROR;
|
|
|
2893 }
|
|
|
2894
|
|
|
2895 type->len = sizeof("text/html") - 1;
|
|
|
2896 type->data = (u_char *) "text/html";
|
|
|
2897
|
|
|
2898 } else {
|
|
|
2899 conf->types = prev->types;
|
|
|
2900 }
|
|
|
2901 }
|
|
|
2902
|
|
46
|
2903 return NGX_CONF_OK;
|
|
|
2904 }
|
|
|
2905
|
|
|
2906
|
|
|
2907 static ngx_int_t
|
|
230
|
2908 ngx_http_ssi_filter_init(ngx_conf_t *cf)
|
|
46
|
2909 {
|
|
|
2910 ngx_http_next_header_filter = ngx_http_top_header_filter;
|
|
|
2911 ngx_http_top_header_filter = ngx_http_ssi_header_filter;
|
|
|
2912
|
|
|
2913 ngx_http_next_body_filter = ngx_http_top_body_filter;
|
|
|
2914 ngx_http_top_body_filter = ngx_http_ssi_body_filter;
|
|
|
2915
|
|
|
2916 return NGX_OK;
|
|
|
2917 }
|
