Mercurial > hg > nginx
annotate src/http/modules/ngx_http_image_filter_module.c @ 3745:f5fa9d2e09b6
image_filter_jpeg_quality supports variables
| author | Igor Sysoev <igor@sysoev.ru> |
|---|---|
| date | Fri, 06 Aug 2010 15:55:05 +0000 |
| parents | 1a728cc43bb1 |
| children | 7562ee4feb74 |
| rev | line source |
|---|---|
| 2788 | 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> | |
|
2819
43fe53832da7
handle big responses for "size" and "test" image_filters
Igor Sysoev <igor@sysoev.ru>
parents:
2795
diff
changeset
|
10 |
|
43fe53832da7
handle big responses for "size" and "test" image_filters
Igor Sysoev <igor@sysoev.ru>
parents:
2795
diff
changeset
|
11 #include <gd.h> |
| 2788 | 12 |
| 13 | |
| 14 #define NGX_HTTP_IMAGE_OFF 0 | |
| 15 #define NGX_HTTP_IMAGE_TEST 1 | |
| 16 #define NGX_HTTP_IMAGE_SIZE 2 | |
| 17 #define NGX_HTTP_IMAGE_RESIZE 3 | |
| 18 #define NGX_HTTP_IMAGE_CROP 4 | |
| 19 | |
| 20 | |
| 21 #define NGX_HTTP_IMAGE_START 0 | |
| 22 #define NGX_HTTP_IMAGE_READ 1 | |
| 23 #define NGX_HTTP_IMAGE_PROCESS 2 | |
|
2819
43fe53832da7
handle big responses for "size" and "test" image_filters
Igor Sysoev <igor@sysoev.ru>
parents:
2795
diff
changeset
|
24 #define NGX_HTTP_IMAGE_PASS 3 |
|
43fe53832da7
handle big responses for "size" and "test" image_filters
Igor Sysoev <igor@sysoev.ru>
parents:
2795
diff
changeset
|
25 #define NGX_HTTP_IMAGE_DONE 4 |
| 2788 | 26 |
| 27 | |
| 28 #define NGX_HTTP_IMAGE_NONE 0 | |
| 29 #define NGX_HTTP_IMAGE_JPEG 1 | |
| 30 #define NGX_HTTP_IMAGE_GIF 2 | |
| 31 #define NGX_HTTP_IMAGE_PNG 3 | |
| 32 | |
| 33 | |
| 34 #define NGX_HTTP_IMAGE_BUFFERED 0x08 | |
| 35 | |
| 36 | |
| 37 typedef struct { | |
| 38 ngx_uint_t filter; | |
| 39 ngx_uint_t width; | |
| 40 ngx_uint_t height; | |
|
3745
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
41 ngx_uint_t jpeg_quality; |
| 2788 | 42 |
| 3134 | 43 ngx_flag_t transparency; |
| 44 | |
|
2998
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
45 ngx_http_complex_value_t *wcv; |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
46 ngx_http_complex_value_t *hcv; |
|
3745
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
47 ngx_http_complex_value_t *jqcv; |
|
2998
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
48 |
| 2788 | 49 size_t buffer_size; |
| 50 } ngx_http_image_filter_conf_t; | |
| 51 | |
| 52 | |
| 53 typedef struct { | |
| 54 u_char *image; | |
| 55 u_char *last; | |
| 56 | |
| 57 size_t length; | |
| 58 | |
| 59 ngx_uint_t width; | |
| 60 ngx_uint_t height; | |
| 61 | |
|
2998
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
62 ngx_uint_t max_width; |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
63 ngx_uint_t max_height; |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
64 |
| 2788 | 65 ngx_uint_t phase; |
| 66 ngx_uint_t type; | |
|
3394
11965c62b92c
force image filter conversion if JPEG application data consume more than 5%
Igor Sysoev <igor@sysoev.ru>
parents:
3393
diff
changeset
|
67 ngx_uint_t force; |
| 2788 | 68 } ngx_http_image_filter_ctx_t; |
| 69 | |
| 70 | |
|
2819
43fe53832da7
handle big responses for "size" and "test" image_filters
Igor Sysoev <igor@sysoev.ru>
parents:
2795
diff
changeset
|
71 static ngx_int_t ngx_http_image_send(ngx_http_request_t *r, |
|
43fe53832da7
handle big responses for "size" and "test" image_filters
Igor Sysoev <igor@sysoev.ru>
parents:
2795
diff
changeset
|
72 ngx_http_image_filter_ctx_t *ctx, ngx_chain_t *in); |
| 2788 | 73 static ngx_uint_t ngx_http_image_test(ngx_http_request_t *r, ngx_chain_t *in); |
| 74 static ngx_int_t ngx_http_image_read(ngx_http_request_t *r, ngx_chain_t *in); | |
| 75 static ngx_buf_t *ngx_http_image_process(ngx_http_request_t *r); | |
| 76 static ngx_buf_t *ngx_http_image_json(ngx_http_request_t *r, | |
| 77 ngx_http_image_filter_ctx_t *ctx); | |
| 78 static ngx_buf_t *ngx_http_image_asis(ngx_http_request_t *r, | |
| 79 ngx_http_image_filter_ctx_t *ctx); | |
| 80 static void ngx_http_image_length(ngx_http_request_t *r, ngx_buf_t *b); | |
| 81 static ngx_int_t ngx_http_image_size(ngx_http_request_t *r, | |
| 82 ngx_http_image_filter_ctx_t *ctx); | |
| 83 | |
| 84 static ngx_buf_t *ngx_http_image_resize(ngx_http_request_t *r, | |
| 85 ngx_http_image_filter_ctx_t *ctx); | |
| 86 static gdImagePtr ngx_http_image_source(ngx_http_request_t *r, | |
| 87 ngx_http_image_filter_ctx_t *ctx); | |
| 88 static gdImagePtr ngx_http_image_new(ngx_http_request_t *r, int w, int h, | |
| 89 int colors); | |
| 90 static u_char *ngx_http_image_out(ngx_http_request_t *r, ngx_uint_t type, | |
| 91 gdImagePtr img, int *size); | |
| 92 static void ngx_http_image_cleanup(void *data); | |
|
2998
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
93 static ngx_uint_t ngx_http_image_filter_get_value(ngx_http_request_t *r, |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
94 ngx_http_complex_value_t *cv, ngx_uint_t v); |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
95 static ngx_uint_t ngx_http_image_filter_value(ngx_str_t *value); |
| 2788 | 96 |
| 97 | |
| 98 static void *ngx_http_image_filter_create_conf(ngx_conf_t *cf); | |
| 99 static char *ngx_http_image_filter_merge_conf(ngx_conf_t *cf, void *parent, | |
| 100 void *child); | |
| 101 static char *ngx_http_image_filter(ngx_conf_t *cf, ngx_command_t *cmd, | |
| 102 void *conf); | |
|
3745
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
103 static char *ngx_http_image_filter_jpeg_quality(ngx_conf_t *cf, |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
104 ngx_command_t *cmd, void *conf); |
| 2788 | 105 static ngx_int_t ngx_http_image_filter_init(ngx_conf_t *cf); |
| 106 | |
| 107 | |
| 108 static ngx_command_t ngx_http_image_filter_commands[] = { | |
| 109 | |
| 110 { ngx_string("image_filter"), | |
| 111 NGX_HTTP_LOC_CONF|NGX_CONF_TAKE13, | |
| 112 ngx_http_image_filter, | |
| 113 NGX_HTTP_LOC_CONF_OFFSET, | |
| 114 0, | |
| 115 NULL }, | |
| 116 | |
| 2848 | 117 { ngx_string("image_filter_jpeg_quality"), |
| 118 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
|
3745
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
119 ngx_http_image_filter_jpeg_quality, |
| 2848 | 120 NGX_HTTP_LOC_CONF_OFFSET, |
|
3745
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
121 0, |
| 2848 | 122 NULL }, |
| 123 | |
| 3134 | 124 { ngx_string("image_filter_transparency"), |
| 125 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
| 126 ngx_conf_set_flag_slot, | |
| 127 NGX_HTTP_LOC_CONF_OFFSET, | |
| 128 offsetof(ngx_http_image_filter_conf_t, transparency), | |
| 129 NULL }, | |
| 130 | |
| 2788 | 131 { ngx_string("image_filter_buffer"), |
| 132 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 133 ngx_conf_set_size_slot, | |
| 134 NGX_HTTP_LOC_CONF_OFFSET, | |
| 135 offsetof(ngx_http_image_filter_conf_t, buffer_size), | |
| 136 NULL }, | |
| 137 | |
| 138 ngx_null_command | |
| 139 }; | |
| 140 | |
| 141 | |
| 142 static ngx_http_module_t ngx_http_image_filter_module_ctx = { | |
| 143 NULL, /* preconfiguration */ | |
| 144 ngx_http_image_filter_init, /* postconfiguration */ | |
| 145 | |
| 146 NULL, /* create main configuration */ | |
| 147 NULL, /* init main configuration */ | |
| 148 | |
| 149 NULL, /* create server configuration */ | |
| 150 NULL, /* merge server configuration */ | |
| 151 | |
| 152 ngx_http_image_filter_create_conf, /* create location configuration */ | |
| 153 ngx_http_image_filter_merge_conf /* merge location configuration */ | |
| 154 }; | |
| 155 | |
| 156 | |
| 157 ngx_module_t ngx_http_image_filter_module = { | |
| 158 NGX_MODULE_V1, | |
| 159 &ngx_http_image_filter_module_ctx, /* module context */ | |
| 160 ngx_http_image_filter_commands, /* module directives */ | |
| 161 NGX_HTTP_MODULE, /* module type */ | |
| 162 NULL, /* init master */ | |
| 163 NULL, /* init module */ | |
| 164 NULL, /* init process */ | |
| 165 NULL, /* init thread */ | |
| 166 NULL, /* exit thread */ | |
| 167 NULL, /* exit process */ | |
| 168 NULL, /* exit master */ | |
| 169 NGX_MODULE_V1_PADDING | |
| 170 }; | |
| 171 | |
| 172 | |
| 173 static ngx_http_output_header_filter_pt ngx_http_next_header_filter; | |
| 174 static ngx_http_output_body_filter_pt ngx_http_next_body_filter; | |
| 175 | |
| 176 | |
| 177 static ngx_str_t ngx_http_image_types[] = { | |
| 178 ngx_string("image/jpeg"), | |
| 179 ngx_string("image/gif"), | |
| 180 ngx_string("image/png") | |
| 181 }; | |
| 182 | |
| 183 | |
| 184 static ngx_int_t | |
| 185 ngx_http_image_header_filter(ngx_http_request_t *r) | |
| 186 { | |
| 187 off_t len; | |
| 188 ngx_http_image_filter_ctx_t *ctx; | |
| 189 ngx_http_image_filter_conf_t *conf; | |
| 190 | |
| 191 if (r->headers_out.status == NGX_HTTP_NOT_MODIFIED) { | |
| 192 return ngx_http_next_header_filter(r); | |
| 193 } | |
| 194 | |
|
2834
0449d289256c
test finalized image filter context before testing image_filter off
Igor Sysoev <igor@sysoev.ru>
parents:
2821
diff
changeset
|
195 ctx = ngx_http_get_module_ctx(r, ngx_http_image_filter_module); |
|
0449d289256c
test finalized image filter context before testing image_filter off
Igor Sysoev <igor@sysoev.ru>
parents:
2821
diff
changeset
|
196 |
|
0449d289256c
test finalized image filter context before testing image_filter off
Igor Sysoev <igor@sysoev.ru>
parents:
2821
diff
changeset
|
197 if (ctx) { |
|
0449d289256c
test finalized image filter context before testing image_filter off
Igor Sysoev <igor@sysoev.ru>
parents:
2821
diff
changeset
|
198 ngx_http_set_ctx(r, NULL, ngx_http_image_filter_module); |
|
0449d289256c
test finalized image filter context before testing image_filter off
Igor Sysoev <igor@sysoev.ru>
parents:
2821
diff
changeset
|
199 return ngx_http_next_header_filter(r); |
|
0449d289256c
test finalized image filter context before testing image_filter off
Igor Sysoev <igor@sysoev.ru>
parents:
2821
diff
changeset
|
200 } |
|
0449d289256c
test finalized image filter context before testing image_filter off
Igor Sysoev <igor@sysoev.ru>
parents:
2821
diff
changeset
|
201 |
| 2788 | 202 conf = ngx_http_get_module_loc_conf(r, ngx_http_image_filter_module); |
| 203 | |
| 204 if (conf->filter == NGX_HTTP_IMAGE_OFF) { | |
| 205 return ngx_http_next_header_filter(r); | |
| 206 } | |
| 207 | |
| 208 if (r->headers_out.content_type.len | |
| 209 >= sizeof("multipart/x-mixed-replace") - 1 | |
| 210 && ngx_strncasecmp(r->headers_out.content_type.data, | |
| 211 (u_char *) "multipart/x-mixed-replace", | |
| 212 sizeof("multipart/x-mixed-replace") - 1) | |
| 213 == 0) | |
| 214 { | |
| 215 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 216 "image filter: multipart/x-mixed-replace response"); | |
| 217 | |
| 218 return NGX_ERROR; | |
| 219 } | |
| 220 | |
| 221 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_image_filter_ctx_t)); | |
| 222 if (ctx == NULL) { | |
| 223 return NGX_ERROR; | |
| 224 } | |
| 225 | |
| 226 ngx_http_set_ctx(r, ctx, ngx_http_image_filter_module); | |
| 227 | |
| 228 len = r->headers_out.content_length_n; | |
| 229 | |
|
2795
d82d08314f78
fix building ngx_http_image_filter_module on 64-bit platforms
Igor Sysoev <igor@sysoev.ru>
parents:
2788
diff
changeset
|
230 if (len != -1 && len > (off_t) conf->buffer_size) { |
| 2788 | 231 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
| 232 "image filter: too big response: %O", len); | |
| 233 | |
|
3722
1a728cc43bb1
return 415 on too big image in image filter
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
234 return NGX_HTTP_UNSUPPORTED_MEDIA_TYPE; |
| 2788 | 235 } |
| 236 | |
| 237 if (len == -1) { | |
| 238 ctx->length = conf->buffer_size; | |
| 239 | |
| 240 } else { | |
| 241 ctx->length = (size_t) len; | |
| 242 } | |
| 243 | |
| 244 if (r->headers_out.refresh) { | |
| 245 r->headers_out.refresh->hash = 0; | |
| 246 } | |
| 247 | |
| 248 r->main_filter_need_in_memory = 1; | |
| 249 r->allow_ranges = 0; | |
| 250 | |
| 251 return NGX_OK; | |
| 252 } | |
| 253 | |
| 254 | |
| 255 static ngx_int_t | |
| 256 ngx_http_image_body_filter(ngx_http_request_t *r, ngx_chain_t *in) | |
| 257 { | |
| 258 ngx_int_t rc; | |
| 259 ngx_str_t *ct; | |
| 260 ngx_chain_t out; | |
| 261 ngx_http_image_filter_ctx_t *ctx; | |
| 262 ngx_http_image_filter_conf_t *conf; | |
| 263 | |
| 264 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "image filter"); | |
| 265 | |
| 266 if (in == NULL) { | |
| 267 return ngx_http_next_body_filter(r, in); | |
| 268 } | |
| 269 | |
| 270 ctx = ngx_http_get_module_ctx(r, ngx_http_image_filter_module); | |
| 271 | |
| 272 if (ctx == NULL) { | |
| 273 return ngx_http_next_body_filter(r, in); | |
| 274 } | |
| 275 | |
| 276 switch (ctx->phase) { | |
| 277 | |
| 278 case NGX_HTTP_IMAGE_START: | |
| 279 | |
| 280 ctx->type = ngx_http_image_test(r, in); | |
| 281 | |
| 282 conf = ngx_http_get_module_loc_conf(r, ngx_http_image_filter_module); | |
| 283 | |
| 284 if (ctx->type == NGX_HTTP_IMAGE_NONE) { | |
| 285 | |
| 286 if (conf->filter == NGX_HTTP_IMAGE_SIZE) { | |
| 287 out.buf = ngx_http_image_json(r, NULL); | |
| 288 | |
| 289 if (out.buf) { | |
| 290 out.next = NULL; | |
|
2819
43fe53832da7
handle big responses for "size" and "test" image_filters
Igor Sysoev <igor@sysoev.ru>
parents:
2795
diff
changeset
|
291 ctx->phase = NGX_HTTP_IMAGE_DONE; |
| 2788 | 292 |
|
2819
43fe53832da7
handle big responses for "size" and "test" image_filters
Igor Sysoev <igor@sysoev.ru>
parents:
2795
diff
changeset
|
293 return ngx_http_image_send(r, ctx, &out); |
| 2788 | 294 } |
| 295 } | |
| 296 | |
| 297 return ngx_http_filter_finalize_request(r, | |
|
2821
26e06e009ced
allow to pass image filter errors via the same location where the filter is set
Igor Sysoev <igor@sysoev.ru>
parents:
2819
diff
changeset
|
298 &ngx_http_image_filter_module, |
| 2788 | 299 NGX_HTTP_UNSUPPORTED_MEDIA_TYPE); |
| 300 } | |
| 301 | |
| 302 /* override content type */ | |
| 303 | |
| 304 ct = &ngx_http_image_types[ctx->type - 1]; | |
| 305 r->headers_out.content_type_len = ct->len; | |
| 306 r->headers_out.content_type = *ct; | |
|
2882
896db5a09bd2
reset content_type hash value, this fixes a bug when XSLT responses
Igor Sysoev <igor@sysoev.ru>
parents:
2848
diff
changeset
|
307 r->headers_out.content_type_lowcase = NULL; |
| 2788 | 308 |
| 309 if (conf->filter == NGX_HTTP_IMAGE_TEST) { | |
|
2819
43fe53832da7
handle big responses for "size" and "test" image_filters
Igor Sysoev <igor@sysoev.ru>
parents:
2795
diff
changeset
|
310 ctx->phase = NGX_HTTP_IMAGE_PASS; |
|
43fe53832da7
handle big responses for "size" and "test" image_filters
Igor Sysoev <igor@sysoev.ru>
parents:
2795
diff
changeset
|
311 |
|
43fe53832da7
handle big responses for "size" and "test" image_filters
Igor Sysoev <igor@sysoev.ru>
parents:
2795
diff
changeset
|
312 return ngx_http_image_send(r, ctx, in); |
| 2788 | 313 } |
| 314 | |
| 315 ctx->phase = NGX_HTTP_IMAGE_READ; | |
| 316 | |
| 317 /* fall through */ | |
| 318 | |
| 319 case NGX_HTTP_IMAGE_READ: | |
| 320 | |
| 321 rc = ngx_http_image_read(r, in); | |
| 322 | |
| 323 if (rc == NGX_AGAIN) { | |
| 324 return NGX_OK; | |
| 325 } | |
| 326 | |
| 327 if (rc == NGX_ERROR) { | |
| 328 return ngx_http_filter_finalize_request(r, | |
|
2821
26e06e009ced
allow to pass image filter errors via the same location where the filter is set
Igor Sysoev <igor@sysoev.ru>
parents:
2819
diff
changeset
|
329 &ngx_http_image_filter_module, |
| 2788 | 330 NGX_HTTP_UNSUPPORTED_MEDIA_TYPE); |
| 331 } | |
| 332 | |
| 333 /* fall through */ | |
| 334 | |
| 335 case NGX_HTTP_IMAGE_PROCESS: | |
| 336 | |
| 337 out.buf = ngx_http_image_process(r); | |
| 338 | |
| 339 if (out.buf == NULL) { | |
| 340 return ngx_http_filter_finalize_request(r, | |
|
2821
26e06e009ced
allow to pass image filter errors via the same location where the filter is set
Igor Sysoev <igor@sysoev.ru>
parents:
2819
diff
changeset
|
341 &ngx_http_image_filter_module, |
| 2788 | 342 NGX_HTTP_UNSUPPORTED_MEDIA_TYPE); |
| 343 } | |
| 344 | |
| 345 out.next = NULL; | |
|
2819
43fe53832da7
handle big responses for "size" and "test" image_filters
Igor Sysoev <igor@sysoev.ru>
parents:
2795
diff
changeset
|
346 ctx->phase = NGX_HTTP_IMAGE_PASS; |
|
43fe53832da7
handle big responses for "size" and "test" image_filters
Igor Sysoev <igor@sysoev.ru>
parents:
2795
diff
changeset
|
347 |
|
43fe53832da7
handle big responses for "size" and "test" image_filters
Igor Sysoev <igor@sysoev.ru>
parents:
2795
diff
changeset
|
348 return ngx_http_image_send(r, ctx, &out); |
| 2788 | 349 |
|
2819
43fe53832da7
handle big responses for "size" and "test" image_filters
Igor Sysoev <igor@sysoev.ru>
parents:
2795
diff
changeset
|
350 case NGX_HTTP_IMAGE_PASS: |
|
43fe53832da7
handle big responses for "size" and "test" image_filters
Igor Sysoev <igor@sysoev.ru>
parents:
2795
diff
changeset
|
351 |
|
43fe53832da7
handle big responses for "size" and "test" image_filters
Igor Sysoev <igor@sysoev.ru>
parents:
2795
diff
changeset
|
352 return ngx_http_next_body_filter(r, in); |
| 2788 | 353 |
| 354 default: /* NGX_HTTP_IMAGE_DONE */ | |
| 355 | |
|
2819
43fe53832da7
handle big responses for "size" and "test" image_filters
Igor Sysoev <igor@sysoev.ru>
parents:
2795
diff
changeset
|
356 rc = ngx_http_next_body_filter(r, NULL); |
|
43fe53832da7
handle big responses for "size" and "test" image_filters
Igor Sysoev <igor@sysoev.ru>
parents:
2795
diff
changeset
|
357 |
|
43fe53832da7
handle big responses for "size" and "test" image_filters
Igor Sysoev <igor@sysoev.ru>
parents:
2795
diff
changeset
|
358 /* NGX_ERROR resets any pending data */ |
|
43fe53832da7
handle big responses for "size" and "test" image_filters
Igor Sysoev <igor@sysoev.ru>
parents:
2795
diff
changeset
|
359 return (rc == NGX_OK) ? NGX_ERROR : rc; |
| 2788 | 360 } |
|
2819
43fe53832da7
handle big responses for "size" and "test" image_filters
Igor Sysoev <igor@sysoev.ru>
parents:
2795
diff
changeset
|
361 } |
| 2788 | 362 |
|
2819
43fe53832da7
handle big responses for "size" and "test" image_filters
Igor Sysoev <igor@sysoev.ru>
parents:
2795
diff
changeset
|
363 |
|
43fe53832da7
handle big responses for "size" and "test" image_filters
Igor Sysoev <igor@sysoev.ru>
parents:
2795
diff
changeset
|
364 static ngx_int_t |
|
43fe53832da7
handle big responses for "size" and "test" image_filters
Igor Sysoev <igor@sysoev.ru>
parents:
2795
diff
changeset
|
365 ngx_http_image_send(ngx_http_request_t *r, ngx_http_image_filter_ctx_t *ctx, |
|
43fe53832da7
handle big responses for "size" and "test" image_filters
Igor Sysoev <igor@sysoev.ru>
parents:
2795
diff
changeset
|
366 ngx_chain_t *in) |
|
43fe53832da7
handle big responses for "size" and "test" image_filters
Igor Sysoev <igor@sysoev.ru>
parents:
2795
diff
changeset
|
367 { |
|
43fe53832da7
handle big responses for "size" and "test" image_filters
Igor Sysoev <igor@sysoev.ru>
parents:
2795
diff
changeset
|
368 ngx_int_t rc; |
| 2788 | 369 |
| 370 rc = ngx_http_next_header_filter(r); | |
| 371 | |
| 372 if (rc == NGX_ERROR || rc > NGX_OK || r->header_only) { | |
|
2819
43fe53832da7
handle big responses for "size" and "test" image_filters
Igor Sysoev <igor@sysoev.ru>
parents:
2795
diff
changeset
|
373 return NGX_ERROR; |
| 2788 | 374 } |
| 375 | |
|
2819
43fe53832da7
handle big responses for "size" and "test" image_filters
Igor Sysoev <igor@sysoev.ru>
parents:
2795
diff
changeset
|
376 rc = ngx_http_next_body_filter(r, in); |
|
43fe53832da7
handle big responses for "size" and "test" image_filters
Igor Sysoev <igor@sysoev.ru>
parents:
2795
diff
changeset
|
377 |
|
43fe53832da7
handle big responses for "size" and "test" image_filters
Igor Sysoev <igor@sysoev.ru>
parents:
2795
diff
changeset
|
378 if (ctx->phase == NGX_HTTP_IMAGE_DONE) { |
|
43fe53832da7
handle big responses for "size" and "test" image_filters
Igor Sysoev <igor@sysoev.ru>
parents:
2795
diff
changeset
|
379 /* NGX_ERROR resets any pending data */ |
|
43fe53832da7
handle big responses for "size" and "test" image_filters
Igor Sysoev <igor@sysoev.ru>
parents:
2795
diff
changeset
|
380 return (rc == NGX_OK) ? NGX_ERROR : rc; |
|
43fe53832da7
handle big responses for "size" and "test" image_filters
Igor Sysoev <igor@sysoev.ru>
parents:
2795
diff
changeset
|
381 } |
|
43fe53832da7
handle big responses for "size" and "test" image_filters
Igor Sysoev <igor@sysoev.ru>
parents:
2795
diff
changeset
|
382 |
|
43fe53832da7
handle big responses for "size" and "test" image_filters
Igor Sysoev <igor@sysoev.ru>
parents:
2795
diff
changeset
|
383 return rc; |
| 2788 | 384 } |
| 385 | |
| 386 | |
| 387 static ngx_uint_t | |
| 388 ngx_http_image_test(ngx_http_request_t *r, ngx_chain_t *in) | |
| 389 { | |
| 390 u_char *p; | |
| 391 | |
| 392 p = in->buf->pos; | |
| 393 | |
| 394 if (in->buf->last - p < 16) { | |
| 395 return NGX_HTTP_IMAGE_NONE; | |
| 396 } | |
| 397 | |
| 398 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 399 "image filter: \"%c%c\"", p[0], p[1]); | |
| 400 | |
| 401 if (p[0] == 0xff && p[1] == 0xd8) { | |
| 402 | |
| 403 /* JPEG */ | |
| 404 | |
| 405 return NGX_HTTP_IMAGE_JPEG; | |
| 406 | |
| 407 } else if (p[0] == 'G' && p[1] == 'I' && p[2] == 'F' && p[3] == '8' | |
| 2918 | 408 && p[5] == 'a') |
| 2788 | 409 { |
| 2918 | 410 if (p[4] == '9' || p[4] == '7') { |
| 411 /* GIF */ | |
| 412 return NGX_HTTP_IMAGE_GIF; | |
| 413 } | |
| 2788 | 414 |
| 415 } else if (p[0] == 0x89 && p[1] == 'P' && p[2] == 'N' && p[3] == 'G' | |
| 416 && p[4] == 0x0d && p[5] == 0x0a && p[6] == 0x1a && p[7] == 0x0a) | |
| 417 { | |
| 418 /* PNG */ | |
| 419 | |
| 420 return NGX_HTTP_IMAGE_PNG; | |
| 421 } | |
| 422 | |
| 423 return NGX_HTTP_IMAGE_NONE; | |
| 424 } | |
| 425 | |
| 426 | |
| 427 static ngx_int_t | |
| 428 ngx_http_image_read(ngx_http_request_t *r, ngx_chain_t *in) | |
| 429 { | |
| 430 u_char *p; | |
| 431 size_t size, rest; | |
| 432 ngx_buf_t *b; | |
| 433 ngx_chain_t *cl; | |
| 434 ngx_http_image_filter_ctx_t *ctx; | |
| 435 | |
| 436 ctx = ngx_http_get_module_ctx(r, ngx_http_image_filter_module); | |
| 437 | |
| 438 if (ctx->image == NULL) { | |
| 439 ctx->image = ngx_palloc(r->pool, ctx->length); | |
| 440 if (ctx->image == NULL) { | |
| 441 return NGX_ERROR; | |
| 442 } | |
| 443 | |
| 444 ctx->last = ctx->image; | |
| 445 } | |
| 446 | |
| 447 p = ctx->last; | |
| 448 | |
| 449 for (cl = in; cl; cl = cl->next) { | |
| 450 | |
| 451 b = cl->buf; | |
| 452 size = b->last - b->pos; | |
| 453 | |
| 454 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 455 "image buf: %uz", size); | |
| 456 | |
| 457 rest = ctx->image + ctx->length - p; | |
| 458 size = (rest < size) ? rest : size; | |
| 459 | |
| 460 p = ngx_cpymem(p, b->pos, size); | |
| 461 b->pos += size; | |
| 462 | |
| 463 if (b->last_buf) { | |
| 464 ctx->last = p; | |
| 465 return NGX_OK; | |
| 466 } | |
| 467 } | |
| 468 | |
| 469 ctx->last = p; | |
| 470 r->connection->buffered |= NGX_HTTP_IMAGE_BUFFERED; | |
| 471 | |
| 472 return NGX_AGAIN; | |
| 473 } | |
| 474 | |
| 475 | |
| 476 static ngx_buf_t * | |
| 477 ngx_http_image_process(ngx_http_request_t *r) | |
| 478 { | |
| 479 ngx_int_t rc; | |
| 480 ngx_http_image_filter_ctx_t *ctx; | |
| 481 ngx_http_image_filter_conf_t *conf; | |
| 482 | |
| 483 r->connection->buffered &= ~NGX_HTTP_IMAGE_BUFFERED; | |
| 484 | |
| 485 ctx = ngx_http_get_module_ctx(r, ngx_http_image_filter_module); | |
| 486 | |
| 487 rc = ngx_http_image_size(r, ctx); | |
| 488 | |
| 489 conf = ngx_http_get_module_loc_conf(r, ngx_http_image_filter_module); | |
| 490 | |
| 491 if (conf->filter == NGX_HTTP_IMAGE_SIZE) { | |
|
2998
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
492 return ngx_http_image_json(r, rc == NGX_OK ? ctx : NULL); |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
493 } |
| 2788 | 494 |
|
2998
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
495 ctx->max_width = ngx_http_image_filter_get_value(r, conf->wcv, conf->width); |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
496 if (ctx->max_width == 0) { |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
497 return NULL; |
| 2788 | 498 } |
| 499 | |
|
2998
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
500 ctx->max_height = ngx_http_image_filter_get_value(r, conf->hcv, |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
501 conf->height); |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
502 if (ctx->max_height == 0) { |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
503 return NULL; |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
504 } |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
505 |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
506 if (rc == NGX_OK |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
507 && ctx->width <= ctx->max_width |
|
3394
11965c62b92c
force image filter conversion if JPEG application data consume more than 5%
Igor Sysoev <igor@sysoev.ru>
parents:
3393
diff
changeset
|
508 && ctx->height <= ctx->max_height |
|
11965c62b92c
force image filter conversion if JPEG application data consume more than 5%
Igor Sysoev <igor@sysoev.ru>
parents:
3393
diff
changeset
|
509 && !ctx->force) |
|
2998
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
510 { |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
511 return ngx_http_image_asis(r, ctx); |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
512 } |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
513 |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
514 return ngx_http_image_resize(r, ctx); |
| 2788 | 515 } |
| 516 | |
| 517 | |
| 518 static ngx_buf_t * | |
| 519 ngx_http_image_json(ngx_http_request_t *r, ngx_http_image_filter_ctx_t *ctx) | |
| 520 { | |
| 521 size_t len; | |
| 522 ngx_buf_t *b; | |
| 523 | |
| 524 b = ngx_pcalloc(r->pool, sizeof(ngx_buf_t)); | |
| 525 if (b == NULL) { | |
| 526 return NULL; | |
| 527 } | |
| 528 | |
| 529 b->memory = 1; | |
| 530 b->last_buf = 1; | |
| 531 | |
| 532 ngx_http_clean_header(r); | |
| 533 | |
| 534 r->headers_out.status = NGX_HTTP_OK; | |
|
3516
dd1570b6f237
ngx_str_set() and ngx_str_null()
Igor Sysoev <igor@sysoev.ru>
parents:
3394
diff
changeset
|
535 ngx_str_set(&r->headers_out.content_type, "text/plain"); |
|
2882
896db5a09bd2
reset content_type hash value, this fixes a bug when XSLT responses
Igor Sysoev <igor@sysoev.ru>
parents:
2848
diff
changeset
|
536 r->headers_out.content_type_lowcase = NULL; |
| 2788 | 537 |
| 538 if (ctx == NULL) { | |
| 539 b->pos = (u_char *) "{}" CRLF; | |
| 540 b->last = b->pos + sizeof("{}" CRLF) - 1; | |
| 541 | |
| 542 ngx_http_image_length(r, b); | |
| 543 | |
| 544 return b; | |
| 545 } | |
| 546 | |
| 547 len = sizeof("{ \"img\" : " | |
| 548 "{ \"width\": , \"height\": , \"type\": \"jpeg\" } }" CRLF) - 1 | |
| 549 + 2 * NGX_SIZE_T_LEN; | |
| 550 | |
| 551 b->pos = ngx_pnalloc(r->pool, len); | |
| 552 if (b->pos == NULL) { | |
| 553 return NULL; | |
| 554 } | |
| 555 | |
| 556 b->last = ngx_sprintf(b->pos, | |
| 557 "{ \"img\" : " | |
| 558 "{ \"width\": %uz," | |
| 559 " \"height\": %uz," | |
| 560 " \"type\": \"%s\" } }" CRLF, | |
| 561 ctx->width, ctx->height, | |
| 562 ngx_http_image_types[ctx->type - 1].data + 6); | |
| 563 | |
| 564 ngx_http_image_length(r, b); | |
| 565 | |
| 566 return b; | |
| 567 } | |
| 568 | |
| 569 | |
| 570 static ngx_buf_t * | |
| 571 ngx_http_image_asis(ngx_http_request_t *r, ngx_http_image_filter_ctx_t *ctx) | |
| 572 { | |
| 573 ngx_buf_t *b; | |
| 574 | |
| 575 b = ngx_pcalloc(r->pool, sizeof(ngx_buf_t)); | |
| 576 if (b == NULL) { | |
| 577 return NULL; | |
| 578 } | |
| 579 | |
| 580 b->pos = ctx->image; | |
| 581 b->last = ctx->last; | |
| 582 b->memory = 1; | |
| 583 b->last_buf = 1; | |
| 584 | |
| 585 ngx_http_image_length(r, b); | |
| 586 | |
| 587 return b; | |
| 588 } | |
| 589 | |
| 590 | |
| 591 static void | |
| 592 ngx_http_image_length(ngx_http_request_t *r, ngx_buf_t *b) | |
| 593 { | |
| 594 r->headers_out.content_length_n = b->last - b->pos; | |
| 595 | |
| 596 if (r->headers_out.content_length) { | |
| 597 r->headers_out.content_length->hash = 0; | |
| 598 } | |
| 599 | |
| 600 r->headers_out.content_length = NULL; | |
| 601 } | |
| 602 | |
| 603 | |
| 604 static ngx_int_t | |
| 605 ngx_http_image_size(ngx_http_request_t *r, ngx_http_image_filter_ctx_t *ctx) | |
| 606 { | |
| 607 u_char *p, *last; | |
|
3394
11965c62b92c
force image filter conversion if JPEG application data consume more than 5%
Igor Sysoev <igor@sysoev.ru>
parents:
3393
diff
changeset
|
608 size_t len, app; |
| 2788 | 609 ngx_uint_t width, height; |
| 610 | |
| 611 p = ctx->image; | |
| 612 | |
| 613 switch (ctx->type) { | |
| 614 | |
| 615 case NGX_HTTP_IMAGE_JPEG: | |
| 616 | |
| 617 p += 2; | |
| 618 last = ctx->image + ctx->length - 10; | |
|
3394
11965c62b92c
force image filter conversion if JPEG application data consume more than 5%
Igor Sysoev <igor@sysoev.ru>
parents:
3393
diff
changeset
|
619 width = 0; |
|
11965c62b92c
force image filter conversion if JPEG application data consume more than 5%
Igor Sysoev <igor@sysoev.ru>
parents:
3393
diff
changeset
|
620 height = 0; |
|
11965c62b92c
force image filter conversion if JPEG application data consume more than 5%
Igor Sysoev <igor@sysoev.ru>
parents:
3393
diff
changeset
|
621 app = 0; |
| 2788 | 622 |
| 623 while (p < last) { | |
| 624 | |
| 625 if (p[0] == 0xff && p[1] != 0xff) { | |
| 626 | |
| 627 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3393 | 628 "JPEG: %02xd %02xd", p[0], p[1]); |
| 2788 | 629 |
| 630 p++; | |
| 631 | |
|
3394
11965c62b92c
force image filter conversion if JPEG application data consume more than 5%
Igor Sysoev <igor@sysoev.ru>
parents:
3393
diff
changeset
|
632 if ((*p == 0xc0 || *p == 0xc1 || *p == 0xc2 || *p == 0xc3 |
|
11965c62b92c
force image filter conversion if JPEG application data consume more than 5%
Igor Sysoev <igor@sysoev.ru>
parents:
3393
diff
changeset
|
633 || *p == 0xc9 || *p == 0xca || *p == 0xcb) |
|
11965c62b92c
force image filter conversion if JPEG application data consume more than 5%
Igor Sysoev <igor@sysoev.ru>
parents:
3393
diff
changeset
|
634 && (width == 0 || height == 0)) |
| 2788 | 635 { |
|
3394
11965c62b92c
force image filter conversion if JPEG application data consume more than 5%
Igor Sysoev <igor@sysoev.ru>
parents:
3393
diff
changeset
|
636 width = p[6] * 256 + p[7]; |
|
11965c62b92c
force image filter conversion if JPEG application data consume more than 5%
Igor Sysoev <igor@sysoev.ru>
parents:
3393
diff
changeset
|
637 height = p[4] * 256 + p[5]; |
| 2788 | 638 } |
| 639 | |
| 640 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 641 "JPEG: %02xd %02xd", p[1], p[2]); | |
| 642 | |
|
3394
11965c62b92c
force image filter conversion if JPEG application data consume more than 5%
Igor Sysoev <igor@sysoev.ru>
parents:
3393
diff
changeset
|
643 len = p[1] * 256 + p[2]; |
|
11965c62b92c
force image filter conversion if JPEG application data consume more than 5%
Igor Sysoev <igor@sysoev.ru>
parents:
3393
diff
changeset
|
644 |
|
11965c62b92c
force image filter conversion if JPEG application data consume more than 5%
Igor Sysoev <igor@sysoev.ru>
parents:
3393
diff
changeset
|
645 if (*p >= 0xe1 && *p <= 0xef) { |
|
11965c62b92c
force image filter conversion if JPEG application data consume more than 5%
Igor Sysoev <igor@sysoev.ru>
parents:
3393
diff
changeset
|
646 /* application data, e.g., EXIF, Adobe XMP, etc. */ |
|
11965c62b92c
force image filter conversion if JPEG application data consume more than 5%
Igor Sysoev <igor@sysoev.ru>
parents:
3393
diff
changeset
|
647 app += len; |
|
11965c62b92c
force image filter conversion if JPEG application data consume more than 5%
Igor Sysoev <igor@sysoev.ru>
parents:
3393
diff
changeset
|
648 } |
|
11965c62b92c
force image filter conversion if JPEG application data consume more than 5%
Igor Sysoev <igor@sysoev.ru>
parents:
3393
diff
changeset
|
649 |
|
11965c62b92c
force image filter conversion if JPEG application data consume more than 5%
Igor Sysoev <igor@sysoev.ru>
parents:
3393
diff
changeset
|
650 p += len; |
| 2788 | 651 |
| 652 continue; | |
| 653 } | |
| 654 | |
| 655 p++; | |
| 656 } | |
| 657 | |
|
3394
11965c62b92c
force image filter conversion if JPEG application data consume more than 5%
Igor Sysoev <igor@sysoev.ru>
parents:
3393
diff
changeset
|
658 if (width == 0 || height == 0) { |
|
11965c62b92c
force image filter conversion if JPEG application data consume more than 5%
Igor Sysoev <igor@sysoev.ru>
parents:
3393
diff
changeset
|
659 return NGX_DECLINED; |
|
11965c62b92c
force image filter conversion if JPEG application data consume more than 5%
Igor Sysoev <igor@sysoev.ru>
parents:
3393
diff
changeset
|
660 } |
| 2788 | 661 |
|
3394
11965c62b92c
force image filter conversion if JPEG application data consume more than 5%
Igor Sysoev <igor@sysoev.ru>
parents:
3393
diff
changeset
|
662 if (ctx->length / 20 < app) { |
|
11965c62b92c
force image filter conversion if JPEG application data consume more than 5%
Igor Sysoev <igor@sysoev.ru>
parents:
3393
diff
changeset
|
663 /* force conversion if application data consume more than 5% */ |
|
11965c62b92c
force image filter conversion if JPEG application data consume more than 5%
Igor Sysoev <igor@sysoev.ru>
parents:
3393
diff
changeset
|
664 ctx->force = 1; |
|
11965c62b92c
force image filter conversion if JPEG application data consume more than 5%
Igor Sysoev <igor@sysoev.ru>
parents:
3393
diff
changeset
|
665 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
|
11965c62b92c
force image filter conversion if JPEG application data consume more than 5%
Igor Sysoev <igor@sysoev.ru>
parents:
3393
diff
changeset
|
666 "app data size: %uz", app); |
|
11965c62b92c
force image filter conversion if JPEG application data consume more than 5%
Igor Sysoev <igor@sysoev.ru>
parents:
3393
diff
changeset
|
667 } |
| 2788 | 668 |
| 669 break; | |
| 670 | |
| 671 case NGX_HTTP_IMAGE_GIF: | |
| 672 | |
| 673 if (ctx->length < 10) { | |
| 674 return NGX_DECLINED; | |
| 675 } | |
| 676 | |
| 677 width = p[7] * 256 + p[6]; | |
| 678 height = p[9] * 256 + p[8]; | |
| 679 | |
| 680 break; | |
| 681 | |
| 682 case NGX_HTTP_IMAGE_PNG: | |
| 683 | |
| 684 if (ctx->length < 24) { | |
| 685 return NGX_DECLINED; | |
| 686 } | |
| 687 | |
| 688 width = p[18] * 256 + p[19]; | |
| 689 height = p[22] * 256 + p[23]; | |
| 690 | |
| 691 break; | |
| 692 | |
| 693 default: | |
| 694 | |
| 695 return NGX_DECLINED; | |
| 696 } | |
| 697 | |
| 698 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 699 "image size: %d x %d", width, height); | |
| 700 | |
| 701 ctx->width = width; | |
| 702 ctx->height = height; | |
| 703 | |
| 704 return NGX_OK; | |
| 705 } | |
| 706 | |
| 707 | |
| 708 static ngx_buf_t * | |
| 709 ngx_http_image_resize(ngx_http_request_t *r, ngx_http_image_filter_ctx_t *ctx) | |
| 710 { | |
| 3134 | 711 int sx, sy, dx, dy, ox, oy, size, |
| 712 colors, palette, transparent, | |
| 713 red, green, blue; | |
| 2788 | 714 u_char *out; |
| 715 ngx_buf_t *b; | |
| 716 ngx_uint_t resize; | |
| 717 gdImagePtr src, dst; | |
| 718 ngx_pool_cleanup_t *cln; | |
| 719 ngx_http_image_filter_conf_t *conf; | |
| 720 | |
| 721 src = ngx_http_image_source(r, ctx); | |
| 722 | |
| 723 if (src == NULL) { | |
| 724 return NULL; | |
| 725 } | |
| 726 | |
| 727 sx = gdImageSX(src); | |
| 728 sy = gdImageSY(src); | |
| 729 | |
| 730 conf = ngx_http_get_module_loc_conf(r, ngx_http_image_filter_module); | |
| 731 | |
|
3394
11965c62b92c
force image filter conversion if JPEG application data consume more than 5%
Igor Sysoev <igor@sysoev.ru>
parents:
3393
diff
changeset
|
732 if (!ctx->force |
|
11965c62b92c
force image filter conversion if JPEG application data consume more than 5%
Igor Sysoev <igor@sysoev.ru>
parents:
3393
diff
changeset
|
733 && (ngx_uint_t) sx <= ctx->max_width |
|
2998
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
734 && (ngx_uint_t) sy <= ctx->max_height) |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
735 { |
| 2788 | 736 gdImageDestroy(src); |
| 737 return ngx_http_image_asis(r, ctx); | |
| 738 } | |
| 739 | |
| 740 colors = gdImageColorsTotal(src); | |
| 3134 | 741 |
| 742 if (colors && conf->transparency) { | |
| 743 transparent = gdImageGetTransparent(src); | |
| 744 | |
| 745 if (transparent != -1) { | |
| 746 palette = colors; | |
| 747 red = gdImageRed(src, transparent); | |
| 748 green = gdImageGreen(src, transparent); | |
| 749 blue = gdImageBlue(src, transparent); | |
| 2788 | 750 |
| 3134 | 751 goto transparent; |
| 752 } | |
| 753 } | |
| 3117 | 754 |
| 3134 | 755 palette = 0; |
| 756 transparent = -1; | |
| 757 red = 0; | |
| 758 green = 0; | |
| 759 blue = 0; | |
| 760 | |
| 761 transparent: | |
| 762 | |
| 763 gdImageColorTransparent(src, -1); | |
| 3117 | 764 |
| 2788 | 765 dx = sx; |
| 766 dy = sy; | |
| 767 | |
| 768 if (conf->filter == NGX_HTTP_IMAGE_RESIZE) { | |
| 769 | |
|
2998
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
770 if ((ngx_uint_t) dx > ctx->max_width) { |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
771 dy = dy * ctx->max_width / dx; |
| 2788 | 772 dy = dy ? dy : 1; |
|
2998
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
773 dx = ctx->max_width; |
| 2788 | 774 } |
| 775 | |
|
2998
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
776 if ((ngx_uint_t) dy > ctx->max_height) { |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
777 dx = dx * ctx->max_height / dy; |
| 2788 | 778 dx = dx ? dx : 1; |
|
2998
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
779 dy = ctx->max_height; |
| 2788 | 780 } |
| 781 | |
| 782 resize = 1; | |
| 783 | |
| 784 } else { /* NGX_HTTP_IMAGE_CROP */ | |
| 785 | |
| 786 resize = 0; | |
| 787 | |
|
2998
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
788 if ((ngx_uint_t) (dx * 100 / dy) |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
789 < ctx->max_width * 100 / ctx->max_height) |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
790 { |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
791 if ((ngx_uint_t) dx > ctx->max_width) { |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
792 dy = dy * ctx->max_width / dx; |
| 2788 | 793 dy = dy ? dy : 1; |
|
2998
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
794 dx = ctx->max_width; |
| 2788 | 795 resize = 1; |
| 796 } | |
| 797 | |
| 798 } else { | |
|
2998
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
799 if ((ngx_uint_t) dy > ctx->max_height) { |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
800 dx = dx * ctx->max_height / dy; |
| 2788 | 801 dx = dx ? dx : 1; |
|
2998
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
802 dy = ctx->max_height; |
| 2788 | 803 resize = 1; |
| 804 } | |
| 805 } | |
| 806 } | |
| 807 | |
| 808 if (resize) { | |
| 3134 | 809 dst = ngx_http_image_new(r, dx, dy, palette); |
| 2788 | 810 if (dst == NULL) { |
| 811 gdImageDestroy(src); | |
| 812 return NULL; | |
| 813 } | |
| 814 | |
|
3133
28a6aa24b453
fix alpha-channel transparency in PNG
Igor Sysoev <igor@sysoev.ru>
parents:
3117
diff
changeset
|
815 if (colors == 0) { |
|
28a6aa24b453
fix alpha-channel transparency in PNG
Igor Sysoev <igor@sysoev.ru>
parents:
3117
diff
changeset
|
816 gdImageSaveAlpha(dst, 1); |
|
28a6aa24b453
fix alpha-channel transparency in PNG
Igor Sysoev <igor@sysoev.ru>
parents:
3117
diff
changeset
|
817 gdImageAlphaBlending(dst, 0); |
|
28a6aa24b453
fix alpha-channel transparency in PNG
Igor Sysoev <igor@sysoev.ru>
parents:
3117
diff
changeset
|
818 } |
|
28a6aa24b453
fix alpha-channel transparency in PNG
Igor Sysoev <igor@sysoev.ru>
parents:
3117
diff
changeset
|
819 |
| 2788 | 820 gdImageCopyResampled(dst, src, 0, 0, 0, 0, dx, dy, sx, sy); |
| 821 | |
| 3134 | 822 if (colors) { |
| 823 gdImageTrueColorToPalette(dst, 1, 256); | |
| 824 } | |
| 825 | |
| 2788 | 826 gdImageDestroy(src); |
| 827 | |
| 828 } else { | |
| 829 dst = src; | |
| 830 } | |
| 831 | |
| 832 if (conf->filter == NGX_HTTP_IMAGE_CROP) { | |
| 833 | |
| 834 src = dst; | |
| 835 | |
|
2998
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
836 if ((ngx_uint_t) dx > ctx->max_width) { |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
837 ox = dx - ctx->max_width; |
| 2788 | 838 |
| 839 } else { | |
| 840 ox = 0; | |
| 841 } | |
| 842 | |
|
2998
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
843 if ((ngx_uint_t) dy > ctx->max_height) { |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
844 oy = dy - ctx->max_height; |
| 2788 | 845 |
| 846 } else { | |
| 847 oy = 0; | |
| 848 } | |
| 849 | |
| 850 if (ox || oy) { | |
| 851 | |
| 852 dst = ngx_http_image_new(r, dx - ox, dy - oy, colors); | |
| 853 | |
| 854 if (dst == NULL) { | |
| 855 gdImageDestroy(src); | |
| 856 return NULL; | |
| 857 } | |
| 858 | |
| 859 ox /= 2; | |
| 860 oy /= 2; | |
| 861 | |
| 862 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 863 "image crop: %d x %d @ %d x %d", | |
| 864 dx, dy, ox, oy); | |
| 865 | |
|
3133
28a6aa24b453
fix alpha-channel transparency in PNG
Igor Sysoev <igor@sysoev.ru>
parents:
3117
diff
changeset
|
866 if (colors == 0) { |
|
28a6aa24b453
fix alpha-channel transparency in PNG
Igor Sysoev <igor@sysoev.ru>
parents:
3117
diff
changeset
|
867 gdImageSaveAlpha(dst, 1); |
|
28a6aa24b453
fix alpha-channel transparency in PNG
Igor Sysoev <igor@sysoev.ru>
parents:
3117
diff
changeset
|
868 gdImageAlphaBlending(dst, 0); |
|
28a6aa24b453
fix alpha-channel transparency in PNG
Igor Sysoev <igor@sysoev.ru>
parents:
3117
diff
changeset
|
869 } |
|
28a6aa24b453
fix alpha-channel transparency in PNG
Igor Sysoev <igor@sysoev.ru>
parents:
3117
diff
changeset
|
870 |
| 2788 | 871 gdImageCopy(dst, src, 0, 0, ox, oy, dx - ox, dy - oy); |
| 872 | |
| 3134 | 873 if (colors) { |
| 874 gdImageTrueColorToPalette(dst, 1, 256); | |
| 875 } | |
| 876 | |
| 2788 | 877 gdImageDestroy(src); |
| 878 } | |
| 879 } | |
| 880 | |
| 3117 | 881 if (transparent != -1 && colors) { |
| 882 gdImageColorTransparent(dst, gdImageColorExact(dst, red, green, blue)); | |
| 883 } | |
| 2788 | 884 |
| 885 out = ngx_http_image_out(r, ctx->type, dst, &size); | |
| 886 | |
| 887 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 888 "image: %d x %d %d", sx, sy, colors); | |
| 889 | |
| 890 gdImageDestroy(dst); | |
| 891 ngx_pfree(r->pool, ctx->image); | |
| 892 | |
| 893 if (out == NULL) { | |
| 894 return NULL; | |
| 895 } | |
| 896 | |
| 897 cln = ngx_pool_cleanup_add(r->pool, 0); | |
| 898 if (cln == NULL) { | |
| 899 gdFree(out); | |
| 900 return NULL; | |
| 901 } | |
| 902 | |
| 903 b = ngx_pcalloc(r->pool, sizeof(ngx_buf_t)); | |
| 904 if (b == NULL) { | |
| 905 gdFree(out); | |
| 906 return NULL; | |
| 907 } | |
| 908 | |
| 909 cln->handler = ngx_http_image_cleanup; | |
| 910 cln->data = out; | |
| 911 | |
| 912 b->pos = out; | |
| 913 b->last = out + size; | |
| 914 b->memory = 1; | |
| 915 b->last_buf = 1; | |
| 916 | |
| 917 ngx_http_image_length(r, b); | |
| 918 | |
| 919 return b; | |
| 920 } | |
| 921 | |
| 922 | |
| 923 static gdImagePtr | |
| 924 ngx_http_image_source(ngx_http_request_t *r, ngx_http_image_filter_ctx_t *ctx) | |
| 925 { | |
| 926 char *failed; | |
| 927 gdImagePtr img; | |
| 928 | |
| 929 img = NULL; | |
| 930 | |
| 931 switch (ctx->type) { | |
| 932 | |
| 933 case NGX_HTTP_IMAGE_JPEG: | |
| 934 img = gdImageCreateFromJpegPtr(ctx->length, ctx->image); | |
| 935 failed = "gdImageCreateFromJpegPtr() failed"; | |
| 936 break; | |
| 937 | |
| 938 case NGX_HTTP_IMAGE_GIF: | |
| 939 img = gdImageCreateFromGifPtr(ctx->length, ctx->image); | |
| 940 failed = "gdImageCreateFromGifPtr() failed"; | |
| 941 break; | |
| 942 | |
| 943 case NGX_HTTP_IMAGE_PNG: | |
| 944 img = gdImageCreateFromPngPtr(ctx->length, ctx->image); | |
| 945 failed = "gdImageCreateFromPngPtr() failed"; | |
| 946 break; | |
| 947 | |
| 948 default: | |
| 949 failed = "unknown image type"; | |
| 950 break; | |
| 951 } | |
| 952 | |
| 953 if (img == NULL) { | |
| 954 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, failed); | |
| 955 } | |
| 956 | |
| 957 return img; | |
| 958 } | |
| 959 | |
| 960 | |
| 961 static gdImagePtr | |
| 962 ngx_http_image_new(ngx_http_request_t *r, int w, int h, int colors) | |
| 963 { | |
| 964 gdImagePtr img; | |
| 965 | |
| 966 if (colors == 0) { | |
| 967 img = gdImageCreateTrueColor(w, h); | |
| 968 | |
| 969 if (img == NULL) { | |
| 970 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 971 "gdImageCreateTrueColor() failed"); | |
| 972 return NULL; | |
| 973 } | |
| 974 | |
| 975 } else { | |
| 976 img = gdImageCreate(w, h); | |
| 977 | |
| 978 if (img == NULL) { | |
| 979 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 980 "gdImageCreate() failed"); | |
| 981 return NULL; | |
| 982 } | |
| 983 } | |
| 984 | |
| 985 return img; | |
| 986 } | |
| 987 | |
| 988 | |
| 989 static u_char * | |
| 990 ngx_http_image_out(ngx_http_request_t *r, ngx_uint_t type, gdImagePtr img, | |
| 991 int *size) | |
| 992 { | |
| 2848 | 993 char *failed; |
| 994 u_char *out; | |
|
3745
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
995 ngx_int_t jq; |
| 2848 | 996 ngx_http_image_filter_conf_t *conf; |
| 2788 | 997 |
| 998 out = NULL; | |
| 999 | |
| 1000 switch (type) { | |
| 1001 | |
| 1002 case NGX_HTTP_IMAGE_JPEG: | |
| 2848 | 1003 conf = ngx_http_get_module_loc_conf(r, ngx_http_image_filter_module); |
|
3745
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1004 |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1005 jq = ngx_http_image_filter_get_value(r, conf->jqcv, conf->jpeg_quality); |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1006 if (jq <= 0) { |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1007 return NULL; |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1008 } |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1009 |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1010 out = gdImageJpegPtr(img, size, jq); |
| 2788 | 1011 failed = "gdImageJpegPtr() failed"; |
| 1012 break; | |
| 1013 | |
| 1014 case NGX_HTTP_IMAGE_GIF: | |
| 1015 out = gdImageGifPtr(img, size); | |
| 1016 failed = "gdImageGifPtr() failed"; | |
| 1017 break; | |
| 1018 | |
| 1019 case NGX_HTTP_IMAGE_PNG: | |
| 1020 out = gdImagePngPtr(img, size); | |
| 1021 failed = "gdImagePngPtr() failed"; | |
| 1022 break; | |
| 1023 | |
| 1024 default: | |
| 1025 failed = "unknown image type"; | |
| 1026 break; | |
| 1027 } | |
| 1028 | |
| 1029 if (out == NULL) { | |
| 1030 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, failed); | |
| 1031 } | |
| 1032 | |
| 1033 return out; | |
| 1034 } | |
| 1035 | |
| 1036 | |
| 1037 static void | |
| 1038 ngx_http_image_cleanup(void *data) | |
| 1039 { | |
| 1040 gdFree(data); | |
| 1041 } | |
| 1042 | |
| 1043 | |
|
2998
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1044 static ngx_uint_t |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1045 ngx_http_image_filter_get_value(ngx_http_request_t *r, |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1046 ngx_http_complex_value_t *cv, ngx_uint_t v) |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1047 { |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1048 ngx_str_t val; |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1049 |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1050 if (cv == NULL) { |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1051 return v; |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1052 } |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1053 |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1054 if (ngx_http_complex_value(r, cv, &val) != NGX_OK) { |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1055 return 0; |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1056 } |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1057 |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1058 return ngx_http_image_filter_value(&val); |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1059 } |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1060 |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1061 |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1062 static ngx_uint_t |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1063 ngx_http_image_filter_value(ngx_str_t *value) |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1064 { |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1065 ngx_int_t n; |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1066 |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1067 if (value->len == 1 && value->data[0] == '-') { |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1068 return (ngx_uint_t) -1; |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1069 } |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1070 |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1071 n = ngx_atoi(value->data, value->len); |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1072 |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1073 if (n > 0) { |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1074 return (ngx_uint_t) n; |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1075 } |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1076 |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1077 return 0; |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1078 } |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1079 |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1080 |
| 2788 | 1081 static void * |
| 1082 ngx_http_image_filter_create_conf(ngx_conf_t *cf) | |
| 1083 { | |
| 1084 ngx_http_image_filter_conf_t *conf; | |
| 1085 | |
| 1086 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_image_filter_conf_t)); | |
| 1087 if (conf == NULL) { | |
|
2912
c7d57b539248
return NULL instead of NGX_CONF_ERROR on a create conf failure
Igor Sysoev <igor@sysoev.ru>
parents:
2882
diff
changeset
|
1088 return NULL; |
| 2788 | 1089 } |
| 1090 | |
| 1091 conf->filter = NGX_CONF_UNSET_UINT; | |
|
3745
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1092 conf->jpeg_quality = NGX_CONF_UNSET_UINT; |
| 3134 | 1093 conf->transparency = NGX_CONF_UNSET; |
| 2788 | 1094 conf->buffer_size = NGX_CONF_UNSET_SIZE; |
| 1095 | |
| 1096 return conf; | |
| 1097 } | |
| 1098 | |
| 1099 | |
| 1100 static char * | |
| 1101 ngx_http_image_filter_merge_conf(ngx_conf_t *cf, void *parent, void *child) | |
| 1102 { | |
| 1103 ngx_http_image_filter_conf_t *prev = parent; | |
| 1104 ngx_http_image_filter_conf_t *conf = child; | |
| 1105 | |
| 1106 if (conf->filter == NGX_CONF_UNSET_UINT) { | |
| 1107 | |
| 1108 if (prev->filter == NGX_CONF_UNSET_UINT) { | |
| 1109 conf->filter = NGX_HTTP_IMAGE_OFF; | |
| 1110 | |
| 1111 } else { | |
| 1112 conf->filter = prev->filter; | |
| 1113 conf->width = prev->width; | |
| 1114 conf->height = prev->height; | |
|
2998
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1115 conf->wcv = prev->wcv; |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1116 conf->hcv = prev->hcv; |
| 2788 | 1117 } |
| 1118 } | |
| 1119 | |
| 2848 | 1120 /* 75 is libjpeg default quality */ |
|
3745
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1121 ngx_conf_merge_uint_value(conf->jpeg_quality, prev->jpeg_quality, 75); |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1122 |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1123 if (conf->jqcv == NULL) { |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1124 conf->jqcv = prev->jqcv; |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1125 } |
| 2848 | 1126 |
| 3134 | 1127 ngx_conf_merge_value(conf->transparency, prev->transparency, 1); |
| 1128 | |
| 2788 | 1129 ngx_conf_merge_size_value(conf->buffer_size, prev->buffer_size, |
| 1130 1 * 1024 * 1024); | |
| 1131 | |
| 1132 return NGX_CONF_OK; | |
| 1133 } | |
| 1134 | |
| 1135 | |
| 1136 static char * | |
| 1137 ngx_http_image_filter(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 1138 { | |
| 1139 ngx_http_image_filter_conf_t *imcf = conf; | |
| 1140 | |
|
2998
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1141 ngx_str_t *value; |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1142 ngx_int_t n; |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1143 ngx_uint_t i; |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1144 ngx_http_complex_value_t cv; |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1145 ngx_http_compile_complex_value_t ccv; |
| 2788 | 1146 |
| 1147 value = cf->args->elts; | |
| 1148 | |
| 1149 i = 1; | |
| 1150 | |
| 1151 if (cf->args->nelts == 2) { | |
| 1152 if (ngx_strcmp(value[i].data, "off") == 0) { | |
| 1153 imcf->filter = NGX_HTTP_IMAGE_OFF; | |
| 1154 | |
| 1155 } else if (ngx_strcmp(value[i].data, "test") == 0) { | |
| 1156 imcf->filter = NGX_HTTP_IMAGE_TEST; | |
| 1157 | |
| 1158 } else if (ngx_strcmp(value[i].data, "size") == 0) { | |
| 1159 imcf->filter = NGX_HTTP_IMAGE_SIZE; | |
| 1160 | |
| 1161 } else { | |
| 1162 goto failed; | |
| 1163 } | |
| 1164 | |
| 1165 return NGX_CONF_OK; | |
| 1166 } | |
| 1167 | |
| 1168 if (ngx_strcmp(value[i].data, "resize") == 0) { | |
| 1169 imcf->filter = NGX_HTTP_IMAGE_RESIZE; | |
| 1170 | |
| 1171 } else if (ngx_strcmp(value[i].data, "crop") == 0) { | |
| 1172 imcf->filter = NGX_HTTP_IMAGE_CROP; | |
| 1173 | |
| 1174 } else { | |
| 1175 goto failed; | |
| 1176 } | |
| 1177 | |
|
2998
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1178 ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t)); |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1179 |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1180 ccv.cf = cf; |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1181 ccv.value = &value[++i]; |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1182 ccv.complex_value = &cv; |
| 2788 | 1183 |
|
2998
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1184 if (ngx_http_compile_complex_value(&ccv) != NGX_OK) { |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1185 return NGX_CONF_ERROR; |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1186 } |
| 2788 | 1187 |
|
2998
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1188 if (cv.lengths == NULL) { |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1189 n = ngx_http_image_filter_value(&value[i]); |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1190 |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1191 if (n == 0) { |
| 2788 | 1192 goto failed; |
| 1193 } | |
| 1194 | |
| 1195 imcf->width = (ngx_uint_t) n; | |
|
2998
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1196 |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1197 } else { |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1198 imcf->wcv = ngx_palloc(cf->pool, sizeof(ngx_http_complex_value_t)); |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1199 if (imcf->wcv == NULL) { |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1200 return NGX_CONF_ERROR; |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1201 } |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1202 |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1203 *imcf->wcv = cv; |
| 2788 | 1204 } |
| 1205 | |
|
2998
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1206 ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t)); |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1207 |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1208 ccv.cf = cf; |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1209 ccv.value = &value[++i]; |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1210 ccv.complex_value = &cv; |
| 2788 | 1211 |
|
2998
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1212 if (ngx_http_compile_complex_value(&ccv) != NGX_OK) { |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1213 return NGX_CONF_ERROR; |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1214 } |
| 2788 | 1215 |
|
2998
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1216 if (cv.lengths == NULL) { |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1217 n = ngx_http_image_filter_value(&value[i]); |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1218 |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1219 if (n == 0) { |
| 2788 | 1220 goto failed; |
| 1221 } | |
| 1222 | |
| 1223 imcf->height = (ngx_uint_t) n; | |
|
2998
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1224 |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1225 } else { |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1226 imcf->hcv = ngx_palloc(cf->pool, sizeof(ngx_http_complex_value_t)); |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1227 if (imcf->hcv == NULL) { |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1228 return NGX_CONF_ERROR; |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1229 } |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1230 |
|
fa8503fd3647
variables support in image_filter
Igor Sysoev <igor@sysoev.ru>
parents:
2918
diff
changeset
|
1231 *imcf->hcv = cv; |
| 2788 | 1232 } |
| 1233 | |
| 1234 return NGX_CONF_OK; | |
| 1235 | |
| 1236 failed: | |
| 1237 | |
| 1238 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid parameter \"%V\"", | |
| 1239 &value[i]); | |
| 1240 | |
| 1241 return NGX_CONF_ERROR; | |
| 1242 } | |
| 1243 | |
| 1244 | |
|
3745
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1245 static char * |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1246 ngx_http_image_filter_jpeg_quality(ngx_conf_t *cf, ngx_command_t *cmd, |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1247 void *conf) |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1248 { |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1249 ngx_http_image_filter_conf_t *imcf = conf; |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1250 |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1251 ngx_str_t *value; |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1252 ngx_int_t n; |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1253 ngx_http_complex_value_t cv; |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1254 ngx_http_compile_complex_value_t ccv; |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1255 |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1256 value = cf->args->elts; |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1257 |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1258 ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t)); |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1259 |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1260 ccv.cf = cf; |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1261 ccv.value = &value[1]; |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1262 ccv.complex_value = &cv; |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1263 |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1264 if (ngx_http_compile_complex_value(&ccv) != NGX_OK) { |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1265 return NGX_CONF_ERROR; |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1266 } |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1267 |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1268 if (cv.lengths == NULL) { |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1269 n = ngx_http_image_filter_value(&value[1]); |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1270 |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1271 if (n <= 0) { |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1272 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1273 "invalid parameter \"%V\"", &value[1]); |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1274 return NGX_CONF_ERROR; |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1275 } |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1276 |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1277 imcf->jpeg_quality = (ngx_uint_t) n; |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1278 |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1279 } else { |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1280 imcf->jqcv = ngx_palloc(cf->pool, sizeof(ngx_http_complex_value_t)); |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1281 if (imcf->jqcv == NULL) { |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1282 return NGX_CONF_ERROR; |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1283 } |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1284 |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1285 *imcf->jqcv = cv; |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1286 } |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1287 |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1288 return NGX_CONF_OK; |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1289 } |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1290 |
|
f5fa9d2e09b6
image_filter_jpeg_quality supports variables
Igor Sysoev <igor@sysoev.ru>
parents:
3722
diff
changeset
|
1291 |
| 2788 | 1292 static ngx_int_t |
| 1293 ngx_http_image_filter_init(ngx_conf_t *cf) | |
| 1294 { | |
| 1295 ngx_http_next_header_filter = ngx_http_top_header_filter; | |
| 1296 ngx_http_top_header_filter = ngx_http_image_header_filter; | |
| 1297 | |
| 1298 ngx_http_next_body_filter = ngx_http_top_body_filter; | |
| 1299 ngx_http_top_body_filter = ngx_http_image_body_filter; | |
| 1300 | |
| 1301 return NGX_OK; | |
| 1302 } |