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annotate src/http/modules/ngx_http_gzip_filter_module.c @ 8021:75af96daee97

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SCGI: combining headers with identical names (ticket #1724). SCGI specification explicitly forbids headers with duplicate names (section "3. Request Format"): "Duplicate names are not allowed in the headers". Further, provided headers are expected to follow CGI specification, which also requires to combine headers (RFC 3875, section "4.1.18. Protocol-Specific Meta-Variables"): "If multiple header fields with the same field-name are received then the server MUST rewrite them as a single value having the same semantics".
author Maxim Dounin <mdounin@mdounin.ru>
date Mon, 30 May 2022 21:25:28 +0300
parents c297c2c252d8
children d26db4f82d7d
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents: 433
diff changeset
1
da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents: 433
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2 /*
444
42d11f017717 nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright
Igor Sysoev <igor@sysoev.ru>
parents: 441
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3 * Copyright (C) Igor Sysoev
4412
d620f497c50f Copyright updated.
Maxim Konovalov <maxim@nginx.com>
parents: 4114
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4 * Copyright (C) Nginx, Inc.
441
da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents: 433
diff changeset
5 */
da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
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parents: 433
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6
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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7
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
8 #include <ngx_config.h>
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
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9 #include <ngx_core.h>
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
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10 #include <ngx_http.h>
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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11
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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12 #include <zlib.h>
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
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13
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
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14
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
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15 typedef struct {
290
87e73f067470 nginx-0.0.2-2004-03-16-10:10:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 289
diff changeset
16 ngx_flag_t enable;
87e73f067470 nginx-0.0.2-2004-03-16-10:10:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 289
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17 ngx_flag_t no_buffer;
87e73f067470 nginx-0.0.2-2004-03-16-10:10:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 289
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18
2166
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Igor Sysoev <igor@sysoev.ru>
parents: 2051
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19 ngx_hash_t types;
452
23fb87bddda1 nginx-0.1.1-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
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20
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afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
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parents: 155
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21 ngx_bufs_t bufs;
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parents: 289
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22
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23 size_t postpone_gzipping;
589
d4e858a5751a nginx-0.3.16-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 583
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24 ngx_int_t level;
319
7a8ebba985a9 nginx-0.0.3-2004-04-16-19:27:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 315
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25 size_t wbits;
7a8ebba985a9 nginx-0.0.3-2004-04-16-19:27:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 315
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26 size_t memlevel;
335
d4241d7787fe nginx-0.0.3-2004-05-14-20:51:47 import
Igor Sysoev <igor@sysoev.ru>
parents: 327
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27 ssize_t min_length;
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723df5089c05 use hash in gzip_types, ssi_types, and sub_filter_types
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parents: 2051
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28
723df5089c05 use hash in gzip_types, ssi_types, and sub_filter_types
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parents: 2051
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29 ngx_array_t *types_keys;
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
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30 } ngx_http_gzip_conf_t;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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31
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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32
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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33 typedef struct {
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
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34 ngx_chain_t *in;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
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35 ngx_chain_t *free;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
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36 ngx_chain_t *busy;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
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37 ngx_chain_t *out;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
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38 ngx_chain_t **last_out;
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39
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40 ngx_chain_t *copied;
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41 ngx_chain_t *copy_buf;
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parents: 2292
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42
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6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 335
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43 ngx_buf_t *in_buf;
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 335
diff changeset
44 ngx_buf_t *out_buf;
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 335
diff changeset
45 ngx_int_t bufs;
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
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46
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
47 void *preallocated;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
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48 char *free_mem;
294
5cfd65b8b0a7 nginx-0.0.3-2004-03-23-09:01:52 import
Igor Sysoev <igor@sysoev.ru>
parents: 292
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49 ngx_uint_t allocated;
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
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50
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51 int wbits;
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52 int memlevel;
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Igor Sysoev <igor@sysoev.ru>
parents: 2292
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53
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
54 unsigned flush:4;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
55 unsigned redo:1;
430
1fa5daf7558e nginx-0.0.11-2004-09-19-22:27:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 416
diff changeset
56 unsigned done:1;
2287
baa61933d5ed use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents: 2166
diff changeset
57 unsigned nomem:1;
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Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
58 unsigned buffering:1;
7816
1f3d0d9f893f Gzip: support for zlib-ng.
Maxim Dounin <mdounin@mdounin.ru>
parents: 7545
diff changeset
59 unsigned zlib_ng:1;
177
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
60
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
61 size_t zin;
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
62 size_t zout;
135
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
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63
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
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64 z_stream zstream;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
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65 ngx_http_request_t *request;
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
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66 } ngx_http_gzip_ctx_t;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
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67
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
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68
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69 static void ngx_http_gzip_filter_memory(ngx_http_request_t *r,
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parents: 2292
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70 ngx_http_gzip_ctx_t *ctx);
2542
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parents: 2536
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71 static ngx_int_t ngx_http_gzip_filter_buffer(ngx_http_gzip_ctx_t *ctx,
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72 ngx_chain_t *in);
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Igor Sysoev <igor@sysoev.ru>
parents: 2290
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73 static ngx_int_t ngx_http_gzip_filter_deflate_start(ngx_http_request_t *r,
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
74 ngx_http_gzip_ctx_t *ctx);
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
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75 static ngx_int_t ngx_http_gzip_filter_add_data(ngx_http_request_t *r,
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
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76 ngx_http_gzip_ctx_t *ctx);
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
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77 static ngx_int_t ngx_http_gzip_filter_get_buf(ngx_http_request_t *r,
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
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78 ngx_http_gzip_ctx_t *ctx);
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
79 static ngx_int_t ngx_http_gzip_filter_deflate(ngx_http_request_t *r,
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
80 ngx_http_gzip_ctx_t *ctx);
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
81 static ngx_int_t ngx_http_gzip_filter_deflate_end(ngx_http_request_t *r,
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
82 ngx_http_gzip_ctx_t *ctx);
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
83
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
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84 static void *ngx_http_gzip_filter_alloc(void *opaque, u_int items,
497
d7c90bb5ce83 nginx-0.1.23-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 489
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85 u_int size);
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
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86 static void ngx_http_gzip_filter_free(void *opaque, void *address);
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87 static void ngx_http_gzip_filter_free_copy_buf(ngx_http_request_t *r,
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parents: 2292
diff changeset
88 ngx_http_gzip_ctx_t *ctx);
177
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
89
573
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 553
diff changeset
90 static ngx_int_t ngx_http_gzip_add_variables(ngx_conf_t *cf);
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 553
diff changeset
91 static ngx_int_t ngx_http_gzip_ratio_variable(ngx_http_request_t *r,
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 553
diff changeset
92 ngx_http_variable_value_t *v, uintptr_t data);
479
c52408583801 nginx-0.1.14-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
93
681
7e24168b0853 nginx-0.4.0-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 663
diff changeset
94 static ngx_int_t ngx_http_gzip_filter_init(ngx_conf_t *cf);
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
95 static void *ngx_http_gzip_create_conf(ngx_conf_t *cf);
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
96 static char *ngx_http_gzip_merge_conf(ngx_conf_t *cf,
497
d7c90bb5ce83 nginx-0.1.23-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 489
diff changeset
97 void *parent, void *child);
527
7fa11e5c6e96 nginx-0.1.38-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 513
diff changeset
98 static char *ngx_http_gzip_window(ngx_conf_t *cf, void *post, void *data);
7fa11e5c6e96 nginx-0.1.38-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 513
diff changeset
99 static char *ngx_http_gzip_hash(ngx_conf_t *cf, void *post, void *data);
158
d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 157
diff changeset
100
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afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
101
158
d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 157
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102 static ngx_conf_num_bounds_t ngx_http_gzip_comp_level_bounds = {
d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 157
diff changeset
103 ngx_conf_check_num_bounds, 1, 9
d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 157
diff changeset
104 };
d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 157
diff changeset
105
527
7fa11e5c6e96 nginx-0.1.38-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 513
diff changeset
106 static ngx_conf_post_handler_pt ngx_http_gzip_window_p = ngx_http_gzip_window;
7fa11e5c6e96 nginx-0.1.38-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 513
diff changeset
107 static ngx_conf_post_handler_pt ngx_http_gzip_hash_p = ngx_http_gzip_hash;
158
d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 157
diff changeset
108
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
109
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
110 static ngx_command_t ngx_http_gzip_filter_commands[] = {
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
111
239
574bea0142be nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 177
diff changeset
112 { ngx_string("gzip"),
485
4ebe09b07e30 nginx-0.1.17-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 483
diff changeset
113 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF
4ebe09b07e30 nginx-0.1.17-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 483
diff changeset
114 |NGX_CONF_FLAG,
239
574bea0142be nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 177
diff changeset
115 ngx_conf_set_flag_slot,
574bea0142be nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 177
diff changeset
116 NGX_HTTP_LOC_CONF_OFFSET,
574bea0142be nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 177
diff changeset
117 offsetof(ngx_http_gzip_conf_t, enable),
412
199cd29f35a3 nginx-0.0.10-2004-08-31-19:32:52 import
Igor Sysoev <igor@sysoev.ru>
parents: 370
diff changeset
118 NULL },
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
119
239
574bea0142be nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 177
diff changeset
120 { ngx_string("gzip_buffers"),
574bea0142be nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 177
diff changeset
121 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2,
574bea0142be nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 177
diff changeset
122 ngx_conf_set_bufs_slot,
574bea0142be nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 177
diff changeset
123 NGX_HTTP_LOC_CONF_OFFSET,
574bea0142be nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 177
diff changeset
124 offsetof(ngx_http_gzip_conf_t, bufs),
412
199cd29f35a3 nginx-0.0.10-2004-08-31-19:32:52 import
Igor Sysoev <igor@sysoev.ru>
parents: 370
diff changeset
125 NULL },
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
126
452
23fb87bddda1 nginx-0.1.1-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
127 { ngx_string("gzip_types"),
23fb87bddda1 nginx-0.1.1-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
128 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
2166
723df5089c05 use hash in gzip_types, ssi_types, and sub_filter_types
Igor Sysoev <igor@sysoev.ru>
parents: 2051
diff changeset
129 ngx_http_types_slot,
452
23fb87bddda1 nginx-0.1.1-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
130 NGX_HTTP_LOC_CONF_OFFSET,
2166
723df5089c05 use hash in gzip_types, ssi_types, and sub_filter_types
Igor Sysoev <igor@sysoev.ru>
parents: 2051
diff changeset
131 offsetof(ngx_http_gzip_conf_t, types_keys),
723df5089c05 use hash in gzip_types, ssi_types, and sub_filter_types
Igor Sysoev <igor@sysoev.ru>
parents: 2051
diff changeset
132 &ngx_http_html_default_types[0] },
452
23fb87bddda1 nginx-0.1.1-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
133
239
574bea0142be nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 177
diff changeset
134 { ngx_string("gzip_comp_level"),
574bea0142be nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 177
diff changeset
135 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
574bea0142be nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 177
diff changeset
136 ngx_conf_set_num_slot,
574bea0142be nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 177
diff changeset
137 NGX_HTTP_LOC_CONF_OFFSET,
574bea0142be nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 177
diff changeset
138 offsetof(ngx_http_gzip_conf_t, level),
412
199cd29f35a3 nginx-0.0.10-2004-08-31-19:32:52 import
Igor Sysoev <igor@sysoev.ru>
parents: 370
diff changeset
139 &ngx_http_gzip_comp_level_bounds },
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
140
239
574bea0142be nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 177
diff changeset
141 { ngx_string("gzip_window"),
574bea0142be nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 177
diff changeset
142 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
574bea0142be nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 177
diff changeset
143 ngx_conf_set_size_slot,
574bea0142be nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 177
diff changeset
144 NGX_HTTP_LOC_CONF_OFFSET,
574bea0142be nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 177
diff changeset
145 offsetof(ngx_http_gzip_conf_t, wbits),
527
7fa11e5c6e96 nginx-0.1.38-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 513
diff changeset
146 &ngx_http_gzip_window_p },
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
147
239
574bea0142be nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 177
diff changeset
148 { ngx_string("gzip_hash"),
574bea0142be nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 177
diff changeset
149 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
574bea0142be nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 177
diff changeset
150 ngx_conf_set_size_slot,
574bea0142be nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 177
diff changeset
151 NGX_HTTP_LOC_CONF_OFFSET,
574bea0142be nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 177
diff changeset
152 offsetof(ngx_http_gzip_conf_t, memlevel),
527
7fa11e5c6e96 nginx-0.1.38-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 513
diff changeset
153 &ngx_http_gzip_hash_p },
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
154
2542
925b5df2e0c2 fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents: 2536
diff changeset
155 { ngx_string("postpone_gzipping"),
925b5df2e0c2 fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents: 2536
diff changeset
156 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
925b5df2e0c2 fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents: 2536
diff changeset
157 ngx_conf_set_size_slot,
925b5df2e0c2 fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents: 2536
diff changeset
158 NGX_HTTP_LOC_CONF_OFFSET,
925b5df2e0c2 fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents: 2536
diff changeset
159 offsetof(ngx_http_gzip_conf_t, postpone_gzipping),
925b5df2e0c2 fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents: 2536
diff changeset
160 NULL },
925b5df2e0c2 fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents: 2536
diff changeset
161
239
574bea0142be nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 177
diff changeset
162 { ngx_string("gzip_no_buffer"),
574bea0142be nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 177
diff changeset
163 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
574bea0142be nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 177
diff changeset
164 ngx_conf_set_flag_slot,
574bea0142be nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 177
diff changeset
165 NGX_HTTP_LOC_CONF_OFFSET,
574bea0142be nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 177
diff changeset
166 offsetof(ngx_http_gzip_conf_t, no_buffer),
412
199cd29f35a3 nginx-0.0.10-2004-08-31-19:32:52 import
Igor Sysoev <igor@sysoev.ru>
parents: 370
diff changeset
167 NULL },
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
168
320
d621239c30f7 nginx-0.0.3-2004-04-18-23:06:02 import
Igor Sysoev <igor@sysoev.ru>
parents: 319
diff changeset
169 { ngx_string("gzip_min_length"),
d621239c30f7 nginx-0.0.3-2004-04-18-23:06:02 import
Igor Sysoev <igor@sysoev.ru>
parents: 319
diff changeset
170 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
d621239c30f7 nginx-0.0.3-2004-04-18-23:06:02 import
Igor Sysoev <igor@sysoev.ru>
parents: 319
diff changeset
171 ngx_conf_set_size_slot,
d621239c30f7 nginx-0.0.3-2004-04-18-23:06:02 import
Igor Sysoev <igor@sysoev.ru>
parents: 319
diff changeset
172 NGX_HTTP_LOC_CONF_OFFSET,
d621239c30f7 nginx-0.0.3-2004-04-18-23:06:02 import
Igor Sysoev <igor@sysoev.ru>
parents: 319
diff changeset
173 offsetof(ngx_http_gzip_conf_t, min_length),
412
199cd29f35a3 nginx-0.0.10-2004-08-31-19:32:52 import
Igor Sysoev <igor@sysoev.ru>
parents: 370
diff changeset
174 NULL },
314
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
175
239
574bea0142be nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 177
diff changeset
176 ngx_null_command
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
177 };
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
178
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
179
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
180 static ngx_http_module_t ngx_http_gzip_filter_module_ctx = {
573
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 553
diff changeset
181 ngx_http_gzip_add_variables, /* preconfiguration */
681
7e24168b0853 nginx-0.4.0-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 663
diff changeset
182 ngx_http_gzip_filter_init, /* postconfiguration */
177
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
183
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
184 NULL, /* create main configuration */
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
185 NULL, /* init main configuration */
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
186
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
187 NULL, /* create server configuration */
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
188 NULL, /* merge server configuration */
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
189
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
190 ngx_http_gzip_create_conf, /* create location configuration */
489
45a460f82aec nginx-0.1.19-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 485
diff changeset
191 ngx_http_gzip_merge_conf /* merge location configuration */
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
192 };
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
193
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
194
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
195 ngx_module_t ngx_http_gzip_filter_module = {
509
9b8c906f6e63 nginx-0.1.29-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 501
diff changeset
196 NGX_MODULE_V1,
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
197 &ngx_http_gzip_filter_module_ctx, /* module context */
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
198 ngx_http_gzip_filter_commands, /* module directives */
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
199 NGX_HTTP_MODULE, /* module type */
541
b09ee85d0ac8 nginx-0.1.45-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 529
diff changeset
200 NULL, /* init master */
681
7e24168b0853 nginx-0.4.0-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 663
diff changeset
201 NULL, /* init module */
541
b09ee85d0ac8 nginx-0.1.45-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 529
diff changeset
202 NULL, /* init process */
b09ee85d0ac8 nginx-0.1.45-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 529
diff changeset
203 NULL, /* init thread */
b09ee85d0ac8 nginx-0.1.45-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 529
diff changeset
204 NULL, /* exit thread */
b09ee85d0ac8 nginx-0.1.45-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 529
diff changeset
205 NULL, /* exit process */
b09ee85d0ac8 nginx-0.1.45-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 529
diff changeset
206 NULL, /* exit master */
b09ee85d0ac8 nginx-0.1.45-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 529
diff changeset
207 NGX_MODULE_V1_PADDING
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
208 };
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
209
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
210
573
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 553
diff changeset
211 static ngx_str_t ngx_http_gzip_ratio = ngx_string("gzip_ratio");
509
9b8c906f6e63 nginx-0.1.29-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 501
diff changeset
212
155
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
213 static ngx_http_output_header_filter_pt ngx_http_next_header_filter;
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
214 static ngx_http_output_body_filter_pt ngx_http_next_body_filter;
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
215
7816
1f3d0d9f893f Gzip: support for zlib-ng.
Maxim Dounin <mdounin@mdounin.ru>
parents: 7545
diff changeset
216 static ngx_uint_t ngx_http_gzip_assume_zlib_ng;
7155
29e9571b1989 Gzip: support for a zlib variant from Intel.
Maxim Dounin <mdounin@mdounin.ru>
parents: 7033
diff changeset
217
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
218
497
d7c90bb5ce83 nginx-0.1.23-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 489
diff changeset
219 static ngx_int_t
d7c90bb5ce83 nginx-0.1.23-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 489
diff changeset
220 ngx_http_gzip_header_filter(ngx_http_request_t *r)
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
221 {
2051
115e6f029fcc "gzip_vary on" always sends "Vary: Accept-Encoding" header
Igor Sysoev <igor@sysoev.ru>
parents: 2049
diff changeset
222 ngx_table_elt_t *h;
115e6f029fcc "gzip_vary on" always sends "Vary: Accept-Encoding" header
Igor Sysoev <igor@sysoev.ru>
parents: 2049
diff changeset
223 ngx_http_gzip_ctx_t *ctx;
115e6f029fcc "gzip_vary on" always sends "Vary: Accept-Encoding" header
Igor Sysoev <igor@sysoev.ru>
parents: 2049
diff changeset
224 ngx_http_gzip_conf_t *conf;
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
225
135
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
226 conf = ngx_http_get_module_loc_conf(r, ngx_http_gzip_filter_module);
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
227
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
228 if (!conf->enable
452
23fb87bddda1 nginx-0.1.1-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
229 || (r->headers_out.status != NGX_HTTP_OK
23fb87bddda1 nginx-0.1.1-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
230 && r->headers_out.status != NGX_HTTP_FORBIDDEN
23fb87bddda1 nginx-0.1.1-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
231 && r->headers_out.status != NGX_HTTP_NOT_FOUND)
135
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
232 || (r->headers_out.content_encoding
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
233 && r->headers_out.content_encoding->value.len)
320
d621239c30f7 nginx-0.0.3-2004-04-18-23:06:02 import
Igor Sysoev <igor@sysoev.ru>
parents: 319
diff changeset
234 || (r->headers_out.content_length_n != -1
d621239c30f7 nginx-0.0.3-2004-04-18-23:06:02 import
Igor Sysoev <igor@sysoev.ru>
parents: 319
diff changeset
235 && r->headers_out.content_length_n < conf->min_length)
3379
0c517d0cabe0 backout r3315 and test r->header_only last, since it's not actually
Igor Sysoev <igor@sysoev.ru>
parents: 3372
diff changeset
236 || ngx_http_test_content_type(r, &conf->types) == NULL
0c517d0cabe0 backout r3315 and test r->header_only last, since it's not actually
Igor Sysoev <igor@sysoev.ru>
parents: 3372
diff changeset
237 || r->header_only)
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
238 {
155
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
239 return ngx_http_next_header_filter(r);
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
240 }
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
241
3313
118169a8ec92 refactor gzip_vary handling
Igor Sysoev <igor@sysoev.ru>
parents: 2912
diff changeset
242 r->gzip_vary = 1;
118169a8ec92 refactor gzip_vary handling
Igor Sysoev <igor@sysoev.ru>
parents: 2912
diff changeset
243
3773
a08e8b3832ae gzip_disable degradation
Igor Sysoev <igor@sysoev.ru>
parents: 3516
diff changeset
244 #if (NGX_HTTP_DEGRADATION)
a08e8b3832ae gzip_disable degradation
Igor Sysoev <igor@sysoev.ru>
parents: 3516
diff changeset
245 {
a08e8b3832ae gzip_disable degradation
Igor Sysoev <igor@sysoev.ru>
parents: 3516
diff changeset
246 ngx_http_core_loc_conf_t *clcf;
a08e8b3832ae gzip_disable degradation
Igor Sysoev <igor@sysoev.ru>
parents: 3516
diff changeset
247
a08e8b3832ae gzip_disable degradation
Igor Sysoev <igor@sysoev.ru>
parents: 3516
diff changeset
248 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
a08e8b3832ae gzip_disable degradation
Igor Sysoev <igor@sysoev.ru>
parents: 3516
diff changeset
249
a08e8b3832ae gzip_disable degradation
Igor Sysoev <igor@sysoev.ru>
parents: 3516
diff changeset
250 if (clcf->gzip_disable_degradation && ngx_http_degraded(r)) {
a08e8b3832ae gzip_disable degradation
Igor Sysoev <igor@sysoev.ru>
parents: 3516
diff changeset
251 return ngx_http_next_header_filter(r);
a08e8b3832ae gzip_disable degradation
Igor Sysoev <igor@sysoev.ru>
parents: 3516
diff changeset
252 }
a08e8b3832ae gzip_disable degradation
Igor Sysoev <igor@sysoev.ru>
parents: 3516
diff changeset
253 }
a08e8b3832ae gzip_disable degradation
Igor Sysoev <igor@sysoev.ru>
parents: 3516
diff changeset
254 #endif
a08e8b3832ae gzip_disable degradation
Igor Sysoev <igor@sysoev.ru>
parents: 3516
diff changeset
255
3313
118169a8ec92 refactor gzip_vary handling
Igor Sysoev <igor@sysoev.ru>
parents: 2912
diff changeset
256 if (!r->gzip_tested) {
118169a8ec92 refactor gzip_vary handling
Igor Sysoev <igor@sysoev.ru>
parents: 2912
diff changeset
257 if (ngx_http_gzip_ok(r) != NGX_OK) {
118169a8ec92 refactor gzip_vary handling
Igor Sysoev <igor@sysoev.ru>
parents: 2912
diff changeset
258 return ngx_http_next_header_filter(r);
118169a8ec92 refactor gzip_vary handling
Igor Sysoev <igor@sysoev.ru>
parents: 2912
diff changeset
259 }
118169a8ec92 refactor gzip_vary handling
Igor Sysoev <igor@sysoev.ru>
parents: 2912
diff changeset
260
118169a8ec92 refactor gzip_vary handling
Igor Sysoev <igor@sysoev.ru>
parents: 2912
diff changeset
261 } else if (!r->gzip_ok) {
118169a8ec92 refactor gzip_vary handling
Igor Sysoev <igor@sysoev.ru>
parents: 2912
diff changeset
262 return ngx_http_next_header_filter(r);
118169a8ec92 refactor gzip_vary handling
Igor Sysoev <igor@sysoev.ru>
parents: 2912
diff changeset
263 }
118169a8ec92 refactor gzip_vary handling
Igor Sysoev <igor@sysoev.ru>
parents: 2912
diff changeset
264
501
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 497
diff changeset
265 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_gzip_ctx_t));
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 497
diff changeset
266 if (ctx == NULL) {
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 497
diff changeset
267 return NGX_ERROR;
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 497
diff changeset
268 }
314
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
269
501
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 497
diff changeset
270 ngx_http_set_ctx(r, ctx, ngx_http_gzip_filter_module);
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 497
diff changeset
271
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
272 ctx->request = r;
2542
925b5df2e0c2 fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents: 2536
diff changeset
273 ctx->buffering = (conf->postpone_gzipping != 0);
2410
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
274
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
275 ngx_http_gzip_filter_memory(r, ctx);
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
276
1790
775edc46ee66 ngx_http_gzip_static_module and gzip_disable
Igor Sysoev <igor@sysoev.ru>
parents: 1626
diff changeset
277 h = ngx_list_push(&r->headers_out.headers);
775edc46ee66 ngx_http_gzip_static_module and gzip_disable
Igor Sysoev <igor@sysoev.ru>
parents: 1626
diff changeset
278 if (h == NULL) {
164
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
279 return NGX_ERROR;
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
280 }
135
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
281
1790
775edc46ee66 ngx_http_gzip_static_module and gzip_disable
Igor Sysoev <igor@sysoev.ru>
parents: 1626
diff changeset
282 h->hash = 1;
3516
dd1570b6f237 ngx_str_set() and ngx_str_null()
Igor Sysoev <igor@sysoev.ru>
parents: 3379
diff changeset
283 ngx_str_set(&h->key, "Content-Encoding");
dd1570b6f237 ngx_str_set() and ngx_str_null()
Igor Sysoev <igor@sysoev.ru>
parents: 3379
diff changeset
284 ngx_str_set(&h->value, "gzip");
1790
775edc46ee66 ngx_http_gzip_static_module and gzip_disable
Igor Sysoev <igor@sysoev.ru>
parents: 1626
diff changeset
285 r->headers_out.content_encoding = h;
775edc46ee66 ngx_http_gzip_static_module and gzip_disable
Igor Sysoev <igor@sysoev.ru>
parents: 1626
diff changeset
286
513
fbbf16224844 nginx-0.1.31-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 509
diff changeset
287 r->main_filter_need_in_memory = 1;
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
288
577
4d9ea73a627a nginx-0.3.10-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 573
diff changeset
289 ngx_http_clear_content_length(r);
4d9ea73a627a nginx-0.3.10-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 573
diff changeset
290 ngx_http_clear_accept_ranges(r);
5733
e491b26fa5a1 Entity tags: downgrade strong etags to weak ones as needed.
Maxim Dounin <mdounin@mdounin.ru>
parents: 5432
diff changeset
291 ngx_http_weak_etag(r);
577
4d9ea73a627a nginx-0.3.10-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 573
diff changeset
292
155
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
293 return ngx_http_next_header_filter(r);
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
294 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
295
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
296
497
d7c90bb5ce83 nginx-0.1.23-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 489
diff changeset
297 static ngx_int_t
d7c90bb5ce83 nginx-0.1.23-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 489
diff changeset
298 ngx_http_gzip_body_filter(ngx_http_request_t *r, ngx_chain_t *in)
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
299 {
2291
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
300 int rc;
5876
973fded4f461 Gzip, gunzip: flush busy buffers if any.
Maxim Dounin <mdounin@mdounin.ru>
parents: 5733
diff changeset
301 ngx_uint_t flush;
2291
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
302 ngx_chain_t *cl;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
303 ngx_http_gzip_ctx_t *ctx;
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
304
243
bf2faf694c19 nginx-0.0.1-2004-01-28-23:38:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 239
diff changeset
305 ctx = ngx_http_get_module_ctx(r, ngx_http_gzip_filter_module);
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
306
4990
e2794322ec76 Fixed HEAD requests handling when proxying is used (closes #261).
Valentin Bartenev <vbart@nginx.com>
parents: 4965
diff changeset
307 if (ctx == NULL || ctx->done || r->header_only) {
177
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
308 return ngx_http_next_body_filter(r, in);
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
309 }
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
310
2410
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
311 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
312 "http gzip filter");
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
313
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
314 if (ctx->buffering) {
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
315
2542
925b5df2e0c2 fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents: 2536
diff changeset
316 /*
925b5df2e0c2 fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents: 2536
diff changeset
317 * With default memory settings zlib starts to output gzipped data
925b5df2e0c2 fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents: 2536
diff changeset
318 * only after it has got about 90K, so it makes sense to allocate
925b5df2e0c2 fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents: 2536
diff changeset
319 * zlib memory (200-400K) only after we have enough data to compress.
925b5df2e0c2 fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents: 2536
diff changeset
320 * Although we copy buffers, nevertheless for not big responses
925b5df2e0c2 fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents: 2536
diff changeset
321 * this allows to allocate zlib memory, to compress and to output
925b5df2e0c2 fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents: 2536
diff changeset
322 * the response in one step using hot CPU cache.
925b5df2e0c2 fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents: 2536
diff changeset
323 */
925b5df2e0c2 fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents: 2536
diff changeset
324
2410
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
325 if (in) {
2542
925b5df2e0c2 fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents: 2536
diff changeset
326 switch (ngx_http_gzip_filter_buffer(ctx, in)) {
2410
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
327
2468
76925110cdae style fix: remove tabs
Igor Sysoev <igor@sysoev.ru>
parents: 2425
diff changeset
328 case NGX_OK:
76925110cdae style fix: remove tabs
Igor Sysoev <igor@sysoev.ru>
parents: 2425
diff changeset
329 return NGX_OK;
2410
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
330
2468
76925110cdae style fix: remove tabs
Igor Sysoev <igor@sysoev.ru>
parents: 2425
diff changeset
331 case NGX_DONE:
76925110cdae style fix: remove tabs
Igor Sysoev <igor@sysoev.ru>
parents: 2425
diff changeset
332 in = NULL;
76925110cdae style fix: remove tabs
Igor Sysoev <igor@sysoev.ru>
parents: 2425
diff changeset
333 break;
2410
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
334
2468
76925110cdae style fix: remove tabs
Igor Sysoev <igor@sysoev.ru>
parents: 2425
diff changeset
335 default: /* NGX_ERROR */
76925110cdae style fix: remove tabs
Igor Sysoev <igor@sysoev.ru>
parents: 2425
diff changeset
336 goto failed;
76925110cdae style fix: remove tabs
Igor Sysoev <igor@sysoev.ru>
parents: 2425
diff changeset
337 }
2410
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
338
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
339 } else {
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
340 ctx->buffering = 0;
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
341 }
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
342 }
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
343
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
344 if (ctx->preallocated == NULL) {
2291
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
345 if (ngx_http_gzip_filter_deflate_start(r, ctx) != NGX_OK) {
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
346 goto failed;
430
1fa5daf7558e nginx-0.0.11-2004-09-19-22:27:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 416
diff changeset
347 }
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
348 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
349
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
350 if (in) {
2536
a6d6d762c554 small optimization: " == NGX_ERROR" > " != NGX_OK"
Igor Sysoev <igor@sysoev.ru>
parents: 2468
diff changeset
351 if (ngx_chain_add_copy(r->pool, &ctx->in, in) != NGX_OK) {
2291
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
352 goto failed;
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
353 }
5291
84155a389bcc Gzip: clearing of c->buffered if all data are flushed.
Maxim Dounin <mdounin@mdounin.ru>
parents: 5107
diff changeset
354
84155a389bcc Gzip: clearing of c->buffered if all data are flushed.
Maxim Dounin <mdounin@mdounin.ru>
parents: 5107
diff changeset
355 r->connection->buffered |= NGX_HTTP_GZIP_BUFFERED;
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
356 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
357
5876
973fded4f461 Gzip, gunzip: flush busy buffers if any.
Maxim Dounin <mdounin@mdounin.ru>
parents: 5733
diff changeset
358 if (ctx->nomem) {
2291
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
359
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
360 /* flush busy buffers */
2287
baa61933d5ed use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents: 2166
diff changeset
361
baa61933d5ed use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents: 2166
diff changeset
362 if (ngx_http_next_body_filter(r, NULL) == NGX_ERROR) {
2291
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
363 goto failed;
2287
baa61933d5ed use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents: 2166
diff changeset
364 }
baa61933d5ed use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents: 2166
diff changeset
365
baa61933d5ed use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents: 2166
diff changeset
366 cl = NULL;
baa61933d5ed use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents: 2166
diff changeset
367
4114
5db098f97e0e API change: ngx_chain_update_chains() now requires pool.
Maxim Dounin <mdounin@mdounin.ru>
parents: 3773
diff changeset
368 ngx_chain_update_chains(r->pool, &ctx->free, &ctx->busy, &cl,
2287
baa61933d5ed use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents: 2166
diff changeset
369 (ngx_buf_tag_t) &ngx_http_gzip_filter_module);
baa61933d5ed use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents: 2166
diff changeset
370 ctx->nomem = 0;
5876
973fded4f461 Gzip, gunzip: flush busy buffers if any.
Maxim Dounin <mdounin@mdounin.ru>
parents: 5733
diff changeset
371 flush = 0;
973fded4f461 Gzip, gunzip: flush busy buffers if any.
Maxim Dounin <mdounin@mdounin.ru>
parents: 5733
diff changeset
372
973fded4f461 Gzip, gunzip: flush busy buffers if any.
Maxim Dounin <mdounin@mdounin.ru>
parents: 5733
diff changeset
373 } else {
973fded4f461 Gzip, gunzip: flush busy buffers if any.
Maxim Dounin <mdounin@mdounin.ru>
parents: 5733
diff changeset
374 flush = ctx->busy ? 1 : 0;
2287
baa61933d5ed use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents: 2166
diff changeset
375 }
141
656d468f4ead nginx-0.0.1-2003-10-08-19:32:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 136
diff changeset
376
135
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
377 for ( ;; ) {
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
378
2291
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
379 /* cycle while we can write to a client */
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
380
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
381 for ( ;; ) {
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
382
2291
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
383 /* cycle while there is data to feed zlib and ... */
323
ba876b26b76d nginx-0.0.3-2004-04-21-22:54:33 import
Igor Sysoev <igor@sysoev.ru>
parents: 322
diff changeset
384
2291
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
385 rc = ngx_http_gzip_filter_add_data(r, ctx);
323
ba876b26b76d nginx-0.0.3-2004-04-21-22:54:33 import
Igor Sysoev <igor@sysoev.ru>
parents: 322
diff changeset
386
2291
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
387 if (rc == NGX_DECLINED) {
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
388 break;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
389 }
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
390
2291
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
391 if (rc == NGX_AGAIN) {
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
392 continue;
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
393 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
394
430
1fa5daf7558e nginx-0.0.11-2004-09-19-22:27:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 416
diff changeset
395
2291
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
396 /* ... there are buffers to write zlib output */
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
397
2291
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
398 rc = ngx_http_gzip_filter_get_buf(r, ctx);
501
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 497
diff changeset
399
2291
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
400 if (rc == NGX_DECLINED) {
323
ba876b26b76d nginx-0.0.3-2004-04-21-22:54:33 import
Igor Sysoev <igor@sysoev.ru>
parents: 322
diff changeset
401 break;
ba876b26b76d nginx-0.0.3-2004-04-21-22:54:33 import
Igor Sysoev <igor@sysoev.ru>
parents: 322
diff changeset
402 }
ba876b26b76d nginx-0.0.3-2004-04-21-22:54:33 import
Igor Sysoev <igor@sysoev.ru>
parents: 322
diff changeset
403
2291
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
404 if (rc == NGX_ERROR) {
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
405 goto failed;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
406 }
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
407
479
c52408583801 nginx-0.1.14-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
408
2291
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
409 rc = ngx_http_gzip_filter_deflate(r, ctx);
355
0fb6c53fb135 nginx-0.0.7-2004-06-15-21:47:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 346
diff changeset
410
2291
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
411 if (rc == NGX_OK) {
323
ba876b26b76d nginx-0.0.3-2004-04-21-22:54:33 import
Igor Sysoev <igor@sysoev.ru>
parents: 322
diff changeset
412 break;
ba876b26b76d nginx-0.0.3-2004-04-21-22:54:33 import
Igor Sysoev <igor@sysoev.ru>
parents: 322
diff changeset
413 }
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
414
2291
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
415 if (rc == NGX_ERROR) {
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
416 goto failed;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
417 }
501
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 497
diff changeset
418
2291
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
419 /* rc == NGX_AGAIN */
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
420 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
421
5876
973fded4f461 Gzip, gunzip: flush busy buffers if any.
Maxim Dounin <mdounin@mdounin.ru>
parents: 5733
diff changeset
422 if (ctx->out == NULL && !flush) {
2410
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
423 ngx_http_gzip_filter_free_copy_buf(r, ctx);
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
424
2292
51487a60eba2 fix the previous commit
Igor Sysoev <igor@sysoev.ru>
parents: 2291
diff changeset
425 return ctx->busy ? NGX_AGAIN : NGX_OK;
430
1fa5daf7558e nginx-0.0.11-2004-09-19-22:27:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 416
diff changeset
426 }
1fa5daf7558e nginx-0.0.11-2004-09-19-22:27:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 416
diff changeset
427
2287
baa61933d5ed use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents: 2166
diff changeset
428 rc = ngx_http_next_body_filter(r, ctx->out);
141
656d468f4ead nginx-0.0.1-2003-10-08-19:32:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 136
diff changeset
429
2287
baa61933d5ed use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents: 2166
diff changeset
430 if (rc == NGX_ERROR) {
2291
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
431 goto failed;
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
432 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
433
2410
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
434 ngx_http_gzip_filter_free_copy_buf(r, ctx);
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
435
4114
5db098f97e0e API change: ngx_chain_update_chains() now requires pool.
Maxim Dounin <mdounin@mdounin.ru>
parents: 3773
diff changeset
436 ngx_chain_update_chains(r->pool, &ctx->free, &ctx->busy, &ctx->out,
501
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 497
diff changeset
437 (ngx_buf_tag_t) &ngx_http_gzip_filter_module);
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
438 ctx->last_out = &ctx->out;
327
e0f3f238db09 nginx-0.0.3-2004-04-26-17:40:01 import
Igor Sysoev <igor@sysoev.ru>
parents: 326
diff changeset
439
2287
baa61933d5ed use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents: 2166
diff changeset
440 ctx->nomem = 0;
5876
973fded4f461 Gzip, gunzip: flush busy buffers if any.
Maxim Dounin <mdounin@mdounin.ru>
parents: 5733
diff changeset
441 flush = 0;
2287
baa61933d5ed use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents: 2166
diff changeset
442
327
e0f3f238db09 nginx-0.0.3-2004-04-26-17:40:01 import
Igor Sysoev <igor@sysoev.ru>
parents: 326
diff changeset
443 if (ctx->done) {
2287
baa61933d5ed use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents: 2166
diff changeset
444 return rc;
327
e0f3f238db09 nginx-0.0.3-2004-04-26-17:40:01 import
Igor Sysoev <igor@sysoev.ru>
parents: 326
diff changeset
445 }
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
446 }
2291
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
447
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
448 /* unreachable */
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
449
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
450 failed:
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
451
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
452 ctx->done = 1;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
453
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
454 if (ctx->preallocated) {
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
455 deflateEnd(&ctx->zstream);
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
456
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
457 ngx_pfree(r->pool, ctx->preallocated);
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
458 }
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
459
2410
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
460 ngx_http_gzip_filter_free_copy_buf(r, ctx);
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
461
2291
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
462 return NGX_ERROR;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
463 }
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
464
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
465
2410
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
466 static void
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
467 ngx_http_gzip_filter_memory(ngx_http_request_t *r, ngx_http_gzip_ctx_t *ctx)
2291
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
468 {
2410
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
469 int wbits, memlevel;
2291
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
470 ngx_http_gzip_conf_t *conf;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
471
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
472 conf = ngx_http_get_module_loc_conf(r, ngx_http_gzip_filter_module);
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
473
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
474 wbits = conf->wbits;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
475 memlevel = conf->memlevel;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
476
2410
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
477 if (r->headers_out.content_length_n > 0) {
2291
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
478
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
479 /* the actual zlib window size is smaller by 262 bytes */
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
480
2410
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
481 while (r->headers_out.content_length_n < ((1 << (wbits - 1)) - 262)) {
2291
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
482 wbits--;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
483 memlevel--;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
484 }
4965
58dfef910ccd Gzip: fixed zlib memLevel adjusting.
Valentin Bartenev <vbart@nginx.com>
parents: 4746
diff changeset
485
58dfef910ccd Gzip: fixed zlib memLevel adjusting.
Valentin Bartenev <vbart@nginx.com>
parents: 4746
diff changeset
486 if (memlevel < 1) {
58dfef910ccd Gzip: fixed zlib memLevel adjusting.
Valentin Bartenev <vbart@nginx.com>
parents: 4746
diff changeset
487 memlevel = 1;
58dfef910ccd Gzip: fixed zlib memLevel adjusting.
Valentin Bartenev <vbart@nginx.com>
parents: 4746
diff changeset
488 }
2291
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
489 }
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
490
2410
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
491 ctx->wbits = wbits;
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
492 ctx->memlevel = memlevel;
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
493
2291
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
494 /*
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
495 * We preallocate a memory for zlib in one buffer (200K-400K), this
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
496 * decreases a number of malloc() and free() calls and also probably
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
497 * decreases a number of syscalls (sbrk()/mmap() and so on).
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
498 * Besides we free the memory as soon as a gzipping will complete
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
499 * and do not wait while a whole response will be sent to a client.
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
500 *
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
501 * 8K is for zlib deflate_state, it takes
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
502 * *) 5816 bytes on i386 and sparc64 (32-bit mode)
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
503 * *) 5920 bytes on amd64 and sparc64
7817
c297c2c252d8 Gzip: updated handling of zlib variant from Intel.
Maxim Dounin <mdounin@mdounin.ru>
parents: 7816
diff changeset
504 *
c297c2c252d8 Gzip: updated handling of zlib variant from Intel.
Maxim Dounin <mdounin@mdounin.ru>
parents: 7816
diff changeset
505 * A zlib variant from Intel (https://github.com/jtkukunas/zlib)
c297c2c252d8 Gzip: updated handling of zlib variant from Intel.
Maxim Dounin <mdounin@mdounin.ru>
parents: 7816
diff changeset
506 * uses additional 16-byte padding in one of window-sized buffers.
2291
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
507 */
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
508
7817
c297c2c252d8 Gzip: updated handling of zlib variant from Intel.
Maxim Dounin <mdounin@mdounin.ru>
parents: 7816
diff changeset
509 if (!ngx_http_gzip_assume_zlib_ng) {
7155
29e9571b1989 Gzip: support for a zlib variant from Intel.
Maxim Dounin <mdounin@mdounin.ru>
parents: 7033
diff changeset
510 ctx->allocated = 8192 + 16 + (1 << (wbits + 2))
7817
c297c2c252d8 Gzip: updated handling of zlib variant from Intel.
Maxim Dounin <mdounin@mdounin.ru>
parents: 7816
diff changeset
511 + (1 << (memlevel + 9));
7816
1f3d0d9f893f Gzip: support for zlib-ng.
Maxim Dounin <mdounin@mdounin.ru>
parents: 7545
diff changeset
512
1f3d0d9f893f Gzip: support for zlib-ng.
Maxim Dounin <mdounin@mdounin.ru>
parents: 7545
diff changeset
513 } else {
1f3d0d9f893f Gzip: support for zlib-ng.
Maxim Dounin <mdounin@mdounin.ru>
parents: 7545
diff changeset
514 /*
1f3d0d9f893f Gzip: support for zlib-ng.
Maxim Dounin <mdounin@mdounin.ru>
parents: 7545
diff changeset
515 * Another zlib variant, https://github.com/zlib-ng/zlib-ng.
7817
c297c2c252d8 Gzip: updated handling of zlib variant from Intel.
Maxim Dounin <mdounin@mdounin.ru>
parents: 7816
diff changeset
516 * It forces window bits to 13 for fast compression level,
c297c2c252d8 Gzip: updated handling of zlib variant from Intel.
Maxim Dounin <mdounin@mdounin.ru>
parents: 7816
diff changeset
517 * uses 16-byte padding in one of window-sized buffers, and
c297c2c252d8 Gzip: updated handling of zlib variant from Intel.
Maxim Dounin <mdounin@mdounin.ru>
parents: 7816
diff changeset
518 * uses 128K hash.
7816
1f3d0d9f893f Gzip: support for zlib-ng.
Maxim Dounin <mdounin@mdounin.ru>
parents: 7545
diff changeset
519 */
1f3d0d9f893f Gzip: support for zlib-ng.
Maxim Dounin <mdounin@mdounin.ru>
parents: 7545
diff changeset
520
1f3d0d9f893f Gzip: support for zlib-ng.
Maxim Dounin <mdounin@mdounin.ru>
parents: 7545
diff changeset
521 if (conf->level == 1) {
1f3d0d9f893f Gzip: support for zlib-ng.
Maxim Dounin <mdounin@mdounin.ru>
parents: 7545
diff changeset
522 wbits = ngx_max(wbits, 13);
1f3d0d9f893f Gzip: support for zlib-ng.
Maxim Dounin <mdounin@mdounin.ru>
parents: 7545
diff changeset
523 }
1f3d0d9f893f Gzip: support for zlib-ng.
Maxim Dounin <mdounin@mdounin.ru>
parents: 7545
diff changeset
524
1f3d0d9f893f Gzip: support for zlib-ng.
Maxim Dounin <mdounin@mdounin.ru>
parents: 7545
diff changeset
525 ctx->allocated = 8192 + 16 + (1 << (wbits + 2))
1f3d0d9f893f Gzip: support for zlib-ng.
Maxim Dounin <mdounin@mdounin.ru>
parents: 7545
diff changeset
526 + 131072 + (1 << (memlevel + 8));
1f3d0d9f893f Gzip: support for zlib-ng.
Maxim Dounin <mdounin@mdounin.ru>
parents: 7545
diff changeset
527 ctx->zlib_ng = 1;
7155
29e9571b1989 Gzip: support for a zlib variant from Intel.
Maxim Dounin <mdounin@mdounin.ru>
parents: 7033
diff changeset
528 }
2410
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
529 }
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
530
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
531
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
532 static ngx_int_t
2542
925b5df2e0c2 fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents: 2536
diff changeset
533 ngx_http_gzip_filter_buffer(ngx_http_gzip_ctx_t *ctx, ngx_chain_t *in)
2410
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
534 {
2542
925b5df2e0c2 fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents: 2536
diff changeset
535 size_t size, buffered;
925b5df2e0c2 fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents: 2536
diff changeset
536 ngx_buf_t *b, *buf;
925b5df2e0c2 fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents: 2536
diff changeset
537 ngx_chain_t *cl, **ll;
925b5df2e0c2 fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents: 2536
diff changeset
538 ngx_http_request_t *r;
925b5df2e0c2 fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents: 2536
diff changeset
539 ngx_http_gzip_conf_t *conf;
2410
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
540
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
541 r = ctx->request;
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
542
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
543 r->connection->buffered |= NGX_HTTP_GZIP_BUFFERED;
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
544
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
545 buffered = 0;
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
546 ll = &ctx->in;
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
547
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
548 for (cl = ctx->in; cl; cl = cl->next) {
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
549 buffered += cl->buf->last - cl->buf->pos;
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
550 ll = &cl->next;
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
551 }
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
552
2542
925b5df2e0c2 fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents: 2536
diff changeset
553 conf = ngx_http_get_module_loc_conf(r, ngx_http_gzip_filter_module);
925b5df2e0c2 fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents: 2536
diff changeset
554
2410
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
555 while (in) {
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
556 cl = ngx_alloc_chain_link(r->pool);
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
557 if (cl == NULL) {
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
558 return NGX_ERROR;
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
559 }
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
560
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
561 b = in->buf;
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
562
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
563 size = b->last - b->pos;
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
564 buffered += size;
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
565
2542
925b5df2e0c2 fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents: 2536
diff changeset
566 if (b->flush || b->last_buf || buffered > conf->postpone_gzipping) {
2410
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
567 ctx->buffering = 0;
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
568 }
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
569
2542
925b5df2e0c2 fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents: 2536
diff changeset
570 if (ctx->buffering && size) {
2410
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
571
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
572 buf = ngx_create_temp_buf(r->pool, size);
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
573 if (buf == NULL) {
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
574 return NGX_ERROR;
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
575 }
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
576
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
577 buf->last = ngx_cpymem(buf->pos, b->pos, size);
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
578 b->pos = b->last;
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
579
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
580 buf->last_buf = b->last_buf;
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
581 buf->tag = (ngx_buf_tag_t) &ngx_http_gzip_filter_module;
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
582
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
583 cl->buf = buf;
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
584
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
585 } else {
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
586 cl->buf = b;
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
587 }
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
588
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
589 *ll = cl;
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
590 ll = &cl->next;
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
591 in = in->next;
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
592 }
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
593
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
594 *ll = NULL;
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
595
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
596 return ctx->buffering ? NGX_OK : NGX_DONE;
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
597 }
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
598
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
599
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
600 static ngx_int_t
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
601 ngx_http_gzip_filter_deflate_start(ngx_http_request_t *r,
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
602 ngx_http_gzip_ctx_t *ctx)
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
603 {
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
604 int rc;
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
605 ngx_http_gzip_conf_t *conf;
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
606
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
607 conf = ngx_http_get_module_loc_conf(r, ngx_http_gzip_filter_module);
2291
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
608
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
609 ctx->preallocated = ngx_palloc(r->pool, ctx->allocated);
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
610 if (ctx->preallocated == NULL) {
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
611 return NGX_ERROR;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
612 }
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
613
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
614 ctx->free_mem = ctx->preallocated;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
615
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
616 ctx->zstream.zalloc = ngx_http_gzip_filter_alloc;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
617 ctx->zstream.zfree = ngx_http_gzip_filter_free;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
618 ctx->zstream.opaque = ctx;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
619
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
620 rc = deflateInit2(&ctx->zstream, (int) conf->level, Z_DEFLATED,
7534
ac5a741d39cf Gzip: use zlib to write header and trailer.
Ilya Leoshkevich <iii@linux.ibm.com>
parents: 7155
diff changeset
621 ctx->wbits + 16, ctx->memlevel, Z_DEFAULT_STRATEGY);
2291
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
622
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
623 if (rc != Z_OK) {
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
624 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
625 "deflateInit2() failed: %d", rc);
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
626 return NGX_ERROR;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
627 }
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
628
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
629 ctx->last_out = &ctx->out;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
630 ctx->flush = Z_NO_FLUSH;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
631
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
632 return NGX_OK;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
633 }
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
634
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
635
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
636 static ngx_int_t
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
637 ngx_http_gzip_filter_add_data(ngx_http_request_t *r, ngx_http_gzip_ctx_t *ctx)
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
638 {
6910
da46bfc484ef Gzip: free chain links on the hot path (ticket #1046).
Maxim Dounin <mdounin@mdounin.ru>
parents: 6480
diff changeset
639 ngx_chain_t *cl;
da46bfc484ef Gzip: free chain links on the hot path (ticket #1046).
Maxim Dounin <mdounin@mdounin.ru>
parents: 6480
diff changeset
640
2291
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
641 if (ctx->zstream.avail_in || ctx->flush != Z_NO_FLUSH || ctx->redo) {
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
642 return NGX_OK;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
643 }
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
644
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
645 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
646 "gzip in: %p", ctx->in);
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
647
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
648 if (ctx->in == NULL) {
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
649 return NGX_DECLINED;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
650 }
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
651
2410
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
652 if (ctx->copy_buf) {
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
653
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
654 /*
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
655 * to avoid CPU cache trashing we do not free() just quit buf,
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
656 * but postpone free()ing after zlib compressing and data output
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
657 */
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
658
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
659 ctx->copy_buf->next = ctx->copied;
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
660 ctx->copied = ctx->copy_buf;
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
661 ctx->copy_buf = NULL;
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
662 }
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
663
6910
da46bfc484ef Gzip: free chain links on the hot path (ticket #1046).
Maxim Dounin <mdounin@mdounin.ru>
parents: 6480
diff changeset
664 cl = ctx->in;
da46bfc484ef Gzip: free chain links on the hot path (ticket #1046).
Maxim Dounin <mdounin@mdounin.ru>
parents: 6480
diff changeset
665 ctx->in_buf = cl->buf;
da46bfc484ef Gzip: free chain links on the hot path (ticket #1046).
Maxim Dounin <mdounin@mdounin.ru>
parents: 6480
diff changeset
666 ctx->in = cl->next;
2410
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
667
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
668 if (ctx->in_buf->tag == (ngx_buf_tag_t) &ngx_http_gzip_filter_module) {
6910
da46bfc484ef Gzip: free chain links on the hot path (ticket #1046).
Maxim Dounin <mdounin@mdounin.ru>
parents: 6480
diff changeset
669 ctx->copy_buf = cl;
da46bfc484ef Gzip: free chain links on the hot path (ticket #1046).
Maxim Dounin <mdounin@mdounin.ru>
parents: 6480
diff changeset
670
da46bfc484ef Gzip: free chain links on the hot path (ticket #1046).
Maxim Dounin <mdounin@mdounin.ru>
parents: 6480
diff changeset
671 } else {
da46bfc484ef Gzip: free chain links on the hot path (ticket #1046).
Maxim Dounin <mdounin@mdounin.ru>
parents: 6480
diff changeset
672 ngx_free_chain(r->pool, cl);
2410
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
673 }
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
674
2291
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
675 ctx->zstream.next_in = ctx->in_buf->pos;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
676 ctx->zstream.avail_in = ctx->in_buf->last - ctx->in_buf->pos;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
677
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
678 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
679 "gzip in_buf:%p ni:%p ai:%ud",
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
680 ctx->in_buf,
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
681 ctx->zstream.next_in, ctx->zstream.avail_in);
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
682
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
683 if (ctx->in_buf->last_buf) {
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
684 ctx->flush = Z_FINISH;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
685
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
686 } else if (ctx->in_buf->flush) {
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
687 ctx->flush = Z_SYNC_FLUSH;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
688
7534
ac5a741d39cf Gzip: use zlib to write header and trailer.
Ilya Leoshkevich <iii@linux.ibm.com>
parents: 7155
diff changeset
689 } else if (ctx->zstream.avail_in == 0) {
ac5a741d39cf Gzip: use zlib to write header and trailer.
Ilya Leoshkevich <iii@linux.ibm.com>
parents: 7155
diff changeset
690 /* ctx->flush == Z_NO_FLUSH */
2291
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
691 return NGX_AGAIN;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
692 }
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
693
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
694 return NGX_OK;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
695 }
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
696
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
697
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
698 static ngx_int_t
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
699 ngx_http_gzip_filter_get_buf(ngx_http_request_t *r, ngx_http_gzip_ctx_t *ctx)
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
700 {
6910
da46bfc484ef Gzip: free chain links on the hot path (ticket #1046).
Maxim Dounin <mdounin@mdounin.ru>
parents: 6480
diff changeset
701 ngx_chain_t *cl;
2291
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
702 ngx_http_gzip_conf_t *conf;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
703
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
704 if (ctx->zstream.avail_out) {
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
705 return NGX_OK;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
706 }
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
707
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
708 conf = ngx_http_get_module_loc_conf(r, ngx_http_gzip_filter_module);
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
709
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
710 if (ctx->free) {
6910
da46bfc484ef Gzip: free chain links on the hot path (ticket #1046).
Maxim Dounin <mdounin@mdounin.ru>
parents: 6480
diff changeset
711
da46bfc484ef Gzip: free chain links on the hot path (ticket #1046).
Maxim Dounin <mdounin@mdounin.ru>
parents: 6480
diff changeset
712 cl = ctx->free;
da46bfc484ef Gzip: free chain links on the hot path (ticket #1046).
Maxim Dounin <mdounin@mdounin.ru>
parents: 6480
diff changeset
713 ctx->out_buf = cl->buf;
da46bfc484ef Gzip: free chain links on the hot path (ticket #1046).
Maxim Dounin <mdounin@mdounin.ru>
parents: 6480
diff changeset
714 ctx->free = cl->next;
da46bfc484ef Gzip: free chain links on the hot path (ticket #1046).
Maxim Dounin <mdounin@mdounin.ru>
parents: 6480
diff changeset
715
da46bfc484ef Gzip: free chain links on the hot path (ticket #1046).
Maxim Dounin <mdounin@mdounin.ru>
parents: 6480
diff changeset
716 ngx_free_chain(r->pool, cl);
2291
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
717
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
718 } else if (ctx->bufs < conf->bufs.num) {
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
719
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
720 ctx->out_buf = ngx_create_temp_buf(r->pool, conf->bufs.size);
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
721 if (ctx->out_buf == NULL) {
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
722 return NGX_ERROR;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
723 }
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
724
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
725 ctx->out_buf->tag = (ngx_buf_tag_t) &ngx_http_gzip_filter_module;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
726 ctx->out_buf->recycled = 1;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
727 ctx->bufs++;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
728
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
729 } else {
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
730 ctx->nomem = 1;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
731 return NGX_DECLINED;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
732 }
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
733
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
734 ctx->zstream.next_out = ctx->out_buf->pos;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
735 ctx->zstream.avail_out = conf->bufs.size;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
736
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
737 return NGX_OK;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
738 }
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
739
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
740
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
741 static ngx_int_t
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
742 ngx_http_gzip_filter_deflate(ngx_http_request_t *r, ngx_http_gzip_ctx_t *ctx)
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
743 {
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
744 int rc;
4468
93dd50a9dc70 Gzip filter: handling of empty flush buffers.
Maxim Dounin <mdounin@mdounin.ru>
parents: 4412
diff changeset
745 ngx_buf_t *b;
2291
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
746 ngx_chain_t *cl;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
747 ngx_http_gzip_conf_t *conf;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
748
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
749 ngx_log_debug6(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
750 "deflate in: ni:%p no:%p ai:%ud ao:%ud fl:%d redo:%d",
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
751 ctx->zstream.next_in, ctx->zstream.next_out,
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
752 ctx->zstream.avail_in, ctx->zstream.avail_out,
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
753 ctx->flush, ctx->redo);
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
754
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
755 rc = deflate(&ctx->zstream, ctx->flush);
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
756
4468
93dd50a9dc70 Gzip filter: handling of empty flush buffers.
Maxim Dounin <mdounin@mdounin.ru>
parents: 4412
diff changeset
757 if (rc != Z_OK && rc != Z_STREAM_END && rc != Z_BUF_ERROR) {
2291
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
758 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
759 "deflate() failed: %d, %d", ctx->flush, rc);
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
760 return NGX_ERROR;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
761 }
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
762
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
763 ngx_log_debug5(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
764 "deflate out: ni:%p no:%p ai:%ud ao:%ud rc:%d",
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
765 ctx->zstream.next_in, ctx->zstream.next_out,
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
766 ctx->zstream.avail_in, ctx->zstream.avail_out,
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
767 rc);
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
768
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
769 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
770 "gzip in_buf:%p pos:%p",
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
771 ctx->in_buf, ctx->in_buf->pos);
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
772
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
773 if (ctx->zstream.next_in) {
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
774 ctx->in_buf->pos = ctx->zstream.next_in;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
775
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
776 if (ctx->zstream.avail_in == 0) {
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
777 ctx->zstream.next_in = NULL;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
778 }
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
779 }
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
780
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
781 ctx->out_buf->last = ctx->zstream.next_out;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
782
7545
0ef2bc0ec9c9 Gzip: fixed "zero size buf" alerts after ac5a741d39cf.
Maxim Dounin <mdounin@mdounin.ru>
parents: 7534
diff changeset
783 if (ctx->zstream.avail_out == 0 && rc != Z_STREAM_END) {
2291
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
784
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
785 /* zlib wants to output some more gzipped data */
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
786
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
787 cl = ngx_alloc_chain_link(r->pool);
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
788 if (cl == NULL) {
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
789 return NGX_ERROR;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
790 }
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
791
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
792 cl->buf = ctx->out_buf;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
793 cl->next = NULL;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
794 *ctx->last_out = cl;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
795 ctx->last_out = &cl->next;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
796
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
797 ctx->redo = 1;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
798
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
799 return NGX_AGAIN;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
800 }
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
801
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
802 ctx->redo = 0;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
803
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
804 if (ctx->flush == Z_SYNC_FLUSH) {
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
805
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
806 ctx->flush = Z_NO_FLUSH;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
807
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
808 cl = ngx_alloc_chain_link(r->pool);
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
809 if (cl == NULL) {
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
810 return NGX_ERROR;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
811 }
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
812
4468
93dd50a9dc70 Gzip filter: handling of empty flush buffers.
Maxim Dounin <mdounin@mdounin.ru>
parents: 4412
diff changeset
813 b = ctx->out_buf;
93dd50a9dc70 Gzip filter: handling of empty flush buffers.
Maxim Dounin <mdounin@mdounin.ru>
parents: 4412
diff changeset
814
93dd50a9dc70 Gzip filter: handling of empty flush buffers.
Maxim Dounin <mdounin@mdounin.ru>
parents: 4412
diff changeset
815 if (ngx_buf_size(b) == 0) {
93dd50a9dc70 Gzip filter: handling of empty flush buffers.
Maxim Dounin <mdounin@mdounin.ru>
parents: 4412
diff changeset
816
93dd50a9dc70 Gzip filter: handling of empty flush buffers.
Maxim Dounin <mdounin@mdounin.ru>
parents: 4412
diff changeset
817 b = ngx_calloc_buf(ctx->request->pool);
93dd50a9dc70 Gzip filter: handling of empty flush buffers.
Maxim Dounin <mdounin@mdounin.ru>
parents: 4412
diff changeset
818 if (b == NULL) {
93dd50a9dc70 Gzip filter: handling of empty flush buffers.
Maxim Dounin <mdounin@mdounin.ru>
parents: 4412
diff changeset
819 return NGX_ERROR;
93dd50a9dc70 Gzip filter: handling of empty flush buffers.
Maxim Dounin <mdounin@mdounin.ru>
parents: 4412
diff changeset
820 }
93dd50a9dc70 Gzip filter: handling of empty flush buffers.
Maxim Dounin <mdounin@mdounin.ru>
parents: 4412
diff changeset
821
93dd50a9dc70 Gzip filter: handling of empty flush buffers.
Maxim Dounin <mdounin@mdounin.ru>
parents: 4412
diff changeset
822 } else {
93dd50a9dc70 Gzip filter: handling of empty flush buffers.
Maxim Dounin <mdounin@mdounin.ru>
parents: 4412
diff changeset
823 ctx->zstream.avail_out = 0;
93dd50a9dc70 Gzip filter: handling of empty flush buffers.
Maxim Dounin <mdounin@mdounin.ru>
parents: 4412
diff changeset
824 }
93dd50a9dc70 Gzip filter: handling of empty flush buffers.
Maxim Dounin <mdounin@mdounin.ru>
parents: 4412
diff changeset
825
93dd50a9dc70 Gzip filter: handling of empty flush buffers.
Maxim Dounin <mdounin@mdounin.ru>
parents: 4412
diff changeset
826 b->flush = 1;
93dd50a9dc70 Gzip filter: handling of empty flush buffers.
Maxim Dounin <mdounin@mdounin.ru>
parents: 4412
diff changeset
827
93dd50a9dc70 Gzip filter: handling of empty flush buffers.
Maxim Dounin <mdounin@mdounin.ru>
parents: 4412
diff changeset
828 cl->buf = b;
2291
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
829 cl->next = NULL;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
830 *ctx->last_out = cl;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
831 ctx->last_out = &cl->next;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
832
5291
84155a389bcc Gzip: clearing of c->buffered if all data are flushed.
Maxim Dounin <mdounin@mdounin.ru>
parents: 5107
diff changeset
833 r->connection->buffered &= ~NGX_HTTP_GZIP_BUFFERED;
84155a389bcc Gzip: clearing of c->buffered if all data are flushed.
Maxim Dounin <mdounin@mdounin.ru>
parents: 5107
diff changeset
834
2291
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
835 return NGX_OK;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
836 }
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
837
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
838 if (rc == Z_STREAM_END) {
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
839
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
840 if (ngx_http_gzip_filter_deflate_end(r, ctx) != NGX_OK) {
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
841 return NGX_ERROR;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
842 }
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
843
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
844 return NGX_OK;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
845 }
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
846
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
847 conf = ngx_http_get_module_loc_conf(r, ngx_http_gzip_filter_module);
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
848
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
849 if (conf->no_buffer && ctx->in == NULL) {
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
850
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
851 cl = ngx_alloc_chain_link(r->pool);
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
852 if (cl == NULL) {
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
853 return NGX_ERROR;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
854 }
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
855
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
856 cl->buf = ctx->out_buf;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
857 cl->next = NULL;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
858 *ctx->last_out = cl;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
859 ctx->last_out = &cl->next;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
860
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
861 return NGX_OK;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
862 }
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
863
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
864 return NGX_AGAIN;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
865 }
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
866
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
867
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
868 static ngx_int_t
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
869 ngx_http_gzip_filter_deflate_end(ngx_http_request_t *r,
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
870 ngx_http_gzip_ctx_t *ctx)
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
871 {
7534
ac5a741d39cf Gzip: use zlib to write header and trailer.
Ilya Leoshkevich <iii@linux.ibm.com>
parents: 7155
diff changeset
872 int rc;
7545
0ef2bc0ec9c9 Gzip: fixed "zero size buf" alerts after ac5a741d39cf.
Maxim Dounin <mdounin@mdounin.ru>
parents: 7534
diff changeset
873 ngx_buf_t *b;
7534
ac5a741d39cf Gzip: use zlib to write header and trailer.
Ilya Leoshkevich <iii@linux.ibm.com>
parents: 7155
diff changeset
874 ngx_chain_t *cl;
2291
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
875
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
876 ctx->zin = ctx->zstream.total_in;
7534
ac5a741d39cf Gzip: use zlib to write header and trailer.
Ilya Leoshkevich <iii@linux.ibm.com>
parents: 7155
diff changeset
877 ctx->zout = ctx->zstream.total_out;
2291
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
878
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
879 rc = deflateEnd(&ctx->zstream);
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
880
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
881 if (rc != Z_OK) {
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
882 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
883 "deflateEnd() failed: %d", rc);
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
884 return NGX_ERROR;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
885 }
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
886
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
887 ngx_pfree(r->pool, ctx->preallocated);
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
888
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
889 cl = ngx_alloc_chain_link(r->pool);
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
890 if (cl == NULL) {
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
891 return NGX_ERROR;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
892 }
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
893
7545
0ef2bc0ec9c9 Gzip: fixed "zero size buf" alerts after ac5a741d39cf.
Maxim Dounin <mdounin@mdounin.ru>
parents: 7534
diff changeset
894 b = ctx->out_buf;
0ef2bc0ec9c9 Gzip: fixed "zero size buf" alerts after ac5a741d39cf.
Maxim Dounin <mdounin@mdounin.ru>
parents: 7534
diff changeset
895
0ef2bc0ec9c9 Gzip: fixed "zero size buf" alerts after ac5a741d39cf.
Maxim Dounin <mdounin@mdounin.ru>
parents: 7534
diff changeset
896 if (ngx_buf_size(b) == 0) {
0ef2bc0ec9c9 Gzip: fixed "zero size buf" alerts after ac5a741d39cf.
Maxim Dounin <mdounin@mdounin.ru>
parents: 7534
diff changeset
897 b->temporary = 0;
0ef2bc0ec9c9 Gzip: fixed "zero size buf" alerts after ac5a741d39cf.
Maxim Dounin <mdounin@mdounin.ru>
parents: 7534
diff changeset
898 }
0ef2bc0ec9c9 Gzip: fixed "zero size buf" alerts after ac5a741d39cf.
Maxim Dounin <mdounin@mdounin.ru>
parents: 7534
diff changeset
899
0ef2bc0ec9c9 Gzip: fixed "zero size buf" alerts after ac5a741d39cf.
Maxim Dounin <mdounin@mdounin.ru>
parents: 7534
diff changeset
900 b->last_buf = 1;
0ef2bc0ec9c9 Gzip: fixed "zero size buf" alerts after ac5a741d39cf.
Maxim Dounin <mdounin@mdounin.ru>
parents: 7534
diff changeset
901
0ef2bc0ec9c9 Gzip: fixed "zero size buf" alerts after ac5a741d39cf.
Maxim Dounin <mdounin@mdounin.ru>
parents: 7534
diff changeset
902 cl->buf = b;
2291
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
903 cl->next = NULL;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
904 *ctx->last_out = cl;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
905 ctx->last_out = &cl->next;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
906
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
907 ctx->zstream.avail_in = 0;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
908 ctx->zstream.avail_out = 0;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
909
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
910 ctx->done = 1;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
911
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
912 r->connection->buffered &= ~NGX_HTTP_GZIP_BUFFERED;
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
913
e9a1cddf2aaa *) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents: 2290
diff changeset
914 return NGX_OK;
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
915 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
916
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
917
497
d7c90bb5ce83 nginx-0.1.23-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 489
diff changeset
918 static void *
d7c90bb5ce83 nginx-0.1.23-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 489
diff changeset
919 ngx_http_gzip_filter_alloc(void *opaque, u_int items, u_int size)
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
920 {
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
921 ngx_http_gzip_ctx_t *ctx = opaque;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
922
294
5cfd65b8b0a7 nginx-0.0.3-2004-03-23-09:01:52 import
Igor Sysoev <igor@sysoev.ru>
parents: 292
diff changeset
923 void *p;
5cfd65b8b0a7 nginx-0.0.3-2004-03-23-09:01:52 import
Igor Sysoev <igor@sysoev.ru>
parents: 292
diff changeset
924 ngx_uint_t alloc;
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
925
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
926 alloc = items * size;
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 455
diff changeset
927
7155
29e9571b1989 Gzip: support for a zlib variant from Intel.
Maxim Dounin <mdounin@mdounin.ru>
parents: 7033
diff changeset
928 if (items == 1 && alloc % 512 != 0 && alloc < 8192) {
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
929
346
55e496a8ece3 nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 344
diff changeset
930 /*
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 455
diff changeset
931 * The zlib deflate_state allocation, it takes about 6K,
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 455
diff changeset
932 * we allocate 8K. Other allocations are divisible by 512.
346
55e496a8ece3 nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 344
diff changeset
933 */
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
934
2425
3d60d55b9ad0 do not try to align to a page size, allocate just 8K,
Igor Sysoev <igor@sysoev.ru>
parents: 2412
diff changeset
935 alloc = 8192;
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
936 }
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
937
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
938 if (alloc <= ctx->allocated) {
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
939 p = ctx->free_mem;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
940 ctx->free_mem += alloc;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
941 ctx->allocated -= alloc;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
942
257
70e1c7d2b83d nginx-0.0.2-2004-02-11-20:08:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 243
diff changeset
943 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, ctx->request->connection->log, 0,
6480
f01ab2dbcfdc Fixed logging.
Sergey Kandaurov <pluknet@nginx.com>
parents: 5876
diff changeset
944 "gzip alloc: n:%ud s:%ud a:%ui p:%p",
257
70e1c7d2b83d nginx-0.0.2-2004-02-11-20:08:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 243
diff changeset
945 items, size, alloc, p);
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
946
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
947 return p;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
948 }
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
949
7816
1f3d0d9f893f Gzip: support for zlib-ng.
Maxim Dounin <mdounin@mdounin.ru>
parents: 7545
diff changeset
950 if (ctx->zlib_ng) {
7155
29e9571b1989 Gzip: support for a zlib variant from Intel.
Maxim Dounin <mdounin@mdounin.ru>
parents: 7033
diff changeset
951 ngx_log_error(NGX_LOG_ALERT, ctx->request->connection->log, 0,
29e9571b1989 Gzip: support for a zlib variant from Intel.
Maxim Dounin <mdounin@mdounin.ru>
parents: 7033
diff changeset
952 "gzip filter failed to use preallocated memory: "
29e9571b1989 Gzip: support for a zlib variant from Intel.
Maxim Dounin <mdounin@mdounin.ru>
parents: 7033
diff changeset
953 "%ud of %ui", items * size, ctx->allocated);
29e9571b1989 Gzip: support for a zlib variant from Intel.
Maxim Dounin <mdounin@mdounin.ru>
parents: 7033
diff changeset
954
7817
c297c2c252d8 Gzip: updated handling of zlib variant from Intel.
Maxim Dounin <mdounin@mdounin.ru>
parents: 7816
diff changeset
955 } else {
7816
1f3d0d9f893f Gzip: support for zlib-ng.
Maxim Dounin <mdounin@mdounin.ru>
parents: 7545
diff changeset
956 ngx_http_gzip_assume_zlib_ng = 1;
7155
29e9571b1989 Gzip: support for a zlib variant from Intel.
Maxim Dounin <mdounin@mdounin.ru>
parents: 7033
diff changeset
957 }
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
958
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
959 p = ngx_palloc(ctx->request->pool, items * size);
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
960
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
961 return p;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
962 }
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
963
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
964
497
d7c90bb5ce83 nginx-0.1.23-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 489
diff changeset
965 static void
d7c90bb5ce83 nginx-0.1.23-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 489
diff changeset
966 ngx_http_gzip_filter_free(void *opaque, void *address)
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
967 {
282
30310107dbc9 nginx-0.0.2-2004-03-09-22:47:07 import
Igor Sysoev <igor@sysoev.ru>
parents: 265
diff changeset
968 #if 0
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
969 ngx_http_gzip_ctx_t *ctx = opaque;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
970
257
70e1c7d2b83d nginx-0.0.2-2004-02-11-20:08:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 243
diff changeset
971 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ctx->request->connection->log, 0,
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 455
diff changeset
972 "gzip free: %p", address);
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
973 #endif
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
974 }
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
975
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
976
2410
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
977 static void
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
978 ngx_http_gzip_filter_free_copy_buf(ngx_http_request_t *r,
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
979 ngx_http_gzip_ctx_t *ctx)
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
980 {
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
981 ngx_chain_t *cl;
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
982
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
983 for (cl = ctx->copied; cl; cl = cl->next) {
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
984 ngx_pfree(r->pool, cl->buf->start);
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
985 }
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
986
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
987 ctx->copied = NULL;
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
988 }
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
989
bbfaeb220e90 postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents: 2292
diff changeset
990
497
d7c90bb5ce83 nginx-0.1.23-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 489
diff changeset
991 static ngx_int_t
573
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 553
diff changeset
992 ngx_http_gzip_add_variables(ngx_conf_t *cf)
177
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
993 {
880
3b763d36e055 axe old % log format
Igor Sysoev <igor@sysoev.ru>
parents: 681
diff changeset
994 ngx_http_variable_t *var;
177
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
995
583
4e296b7d25bf nginx-0.3.13-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 577
diff changeset
996 var = ngx_http_add_variable(cf, &ngx_http_gzip_ratio, NGX_HTTP_VAR_NOHASH);
573
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 553
diff changeset
997 if (var == NULL) {
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 553
diff changeset
998 return NGX_ERROR;
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 553
diff changeset
999 }
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 553
diff changeset
1000
637
e60fe4cf1d4e nginx-0.3.40-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 597
diff changeset
1001 var->get_handler = ngx_http_gzip_ratio_variable;
573
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 553
diff changeset
1002
177
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
1003 return NGX_OK;
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
1004 }
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
1005
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
1006
497
d7c90bb5ce83 nginx-0.1.23-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 489
diff changeset
1007 static ngx_int_t
573
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 553
diff changeset
1008 ngx_http_gzip_ratio_variable(ngx_http_request_t *r,
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 553
diff changeset
1009 ngx_http_variable_value_t *v, uintptr_t data)
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 553
diff changeset
1010 {
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 553
diff changeset
1011 ngx_uint_t zint, zfrac;
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 553
diff changeset
1012 ngx_http_gzip_ctx_t *ctx;
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 553
diff changeset
1013
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 553
diff changeset
1014 ctx = ngx_http_get_module_ctx(r, ngx_http_gzip_filter_module);
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 553
diff changeset
1015
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 553
diff changeset
1016 if (ctx == NULL || ctx->zout == 0) {
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 553
diff changeset
1017 v->not_found = 1;
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 553
diff changeset
1018 return NGX_OK;
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 553
diff changeset
1019 }
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 553
diff changeset
1020
7033
ab5117642647 Gzip: fixed style in $gzip_ratio variable handler.
Ruslan Ermilov <ru@nginx.com>
parents: 6973
diff changeset
1021 v->valid = 1;
ab5117642647 Gzip: fixed style in $gzip_ratio variable handler.
Ruslan Ermilov <ru@nginx.com>
parents: 6973
diff changeset
1022 v->no_cacheable = 0;
ab5117642647 Gzip: fixed style in $gzip_ratio variable handler.
Ruslan Ermilov <ru@nginx.com>
parents: 6973
diff changeset
1023 v->not_found = 0;
ab5117642647 Gzip: fixed style in $gzip_ratio variable handler.
Ruslan Ermilov <ru@nginx.com>
parents: 6973
diff changeset
1024
2049
2a92804f4109 *) back out r2040
Igor Sysoev <igor@sysoev.ru>
parents: 1790
diff changeset
1025 v->data = ngx_pnalloc(r->pool, NGX_INT32_LEN + 3);
573
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 553
diff changeset
1026 if (v->data == NULL) {
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 553
diff changeset
1027 return NGX_ERROR;
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 553
diff changeset
1028 }
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 553
diff changeset
1029
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 553
diff changeset
1030 zint = (ngx_uint_t) (ctx->zin / ctx->zout);
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 553
diff changeset
1031 zfrac = (ngx_uint_t) ((ctx->zin * 100 / ctx->zout) % 100);
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 553
diff changeset
1032
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 553
diff changeset
1033 if ((ctx->zin * 1000 / ctx->zout) % 10 > 4) {
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 553
diff changeset
1034
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 553
diff changeset
1035 /* the rounding, e.g., 2.125 to 2.13 */
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 553
diff changeset
1036
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 553
diff changeset
1037 zfrac++;
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 553
diff changeset
1038
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 553
diff changeset
1039 if (zfrac > 99) {
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 553
diff changeset
1040 zint++;
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 553
diff changeset
1041 zfrac = 0;
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 553
diff changeset
1042 }
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 553
diff changeset
1043 }
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 553
diff changeset
1044
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 553
diff changeset
1045 v->len = ngx_sprintf(v->data, "%ui.%02ui", zint, zfrac) - v->data;
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 553
diff changeset
1046
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 553
diff changeset
1047 return NGX_OK;
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 553
diff changeset
1048 }
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 553
diff changeset
1049
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 553
diff changeset
1050
497
d7c90bb5ce83 nginx-0.1.23-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 489
diff changeset
1051 static void *
d7c90bb5ce83 nginx-0.1.23-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 489
diff changeset
1052 ngx_http_gzip_create_conf(ngx_conf_t *cf)
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
1053 {
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
1054 ngx_http_gzip_conf_t *conf;
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
1055
501
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 497
diff changeset
1056 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_gzip_conf_t));
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 497
diff changeset
1057 if (conf == NULL) {
2912
c7d57b539248 return NULL instead of NGX_CONF_ERROR on a create conf failure
Igor Sysoev <igor@sysoev.ru>
parents: 2542
diff changeset
1058 return NULL;
430
1fa5daf7558e nginx-0.0.11-2004-09-19-22:27:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 416
diff changeset
1059 }
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
1060
430
1fa5daf7558e nginx-0.0.11-2004-09-19-22:27:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 416
diff changeset
1061 /*
479
c52408583801 nginx-0.1.14-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
1062 * set by ngx_pcalloc():
c52408583801 nginx-0.1.14-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
1063 *
c52408583801 nginx-0.1.14-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
1064 * conf->bufs.num = 0;
2166
723df5089c05 use hash in gzip_types, ssi_types, and sub_filter_types
Igor Sysoev <igor@sysoev.ru>
parents: 2051
diff changeset
1065 * conf->types = { NULL };
723df5089c05 use hash in gzip_types, ssi_types, and sub_filter_types
Igor Sysoev <igor@sysoev.ru>
parents: 2051
diff changeset
1066 * conf->types_keys = NULL;
430
1fa5daf7558e nginx-0.0.11-2004-09-19-22:27:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 416
diff changeset
1067 */
320
d621239c30f7 nginx-0.0.3-2004-04-18-23:06:02 import
Igor Sysoev <igor@sysoev.ru>
parents: 319
diff changeset
1068
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
1069 conf->enable = NGX_CONF_UNSET;
290
87e73f067470 nginx-0.0.2-2004-03-16-10:10:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 289
diff changeset
1070 conf->no_buffer = NGX_CONF_UNSET;
314
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
1071
2542
925b5df2e0c2 fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents: 2536
diff changeset
1072 conf->postpone_gzipping = NGX_CONF_UNSET_SIZE;
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
1073 conf->level = NGX_CONF_UNSET;
2542
925b5df2e0c2 fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents: 2536
diff changeset
1074 conf->wbits = NGX_CONF_UNSET_SIZE;
925b5df2e0c2 fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents: 2536
diff changeset
1075 conf->memlevel = NGX_CONF_UNSET_SIZE;
356
2e3cbc1bbe3c nginx-0.0.7-2004-06-16-19:32:11 import
Igor Sysoev <igor@sysoev.ru>
parents: 355
diff changeset
1076 conf->min_length = NGX_CONF_UNSET;
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
1077
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
1078 return conf;
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
1079 }
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
1080
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
1081
497
d7c90bb5ce83 nginx-0.1.23-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 489
diff changeset
1082 static char *
d7c90bb5ce83 nginx-0.1.23-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 489
diff changeset
1083 ngx_http_gzip_merge_conf(ngx_conf_t *cf, void *parent, void *child)
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
1084 {
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
1085 ngx_http_gzip_conf_t *prev = parent;
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
1086 ngx_http_gzip_conf_t *conf = child;
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
1087
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
1088 ngx_conf_merge_value(conf->enable, prev->enable, 0);
2542
925b5df2e0c2 fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents: 2536
diff changeset
1089 ngx_conf_merge_value(conf->no_buffer, prev->no_buffer, 0);
314
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
1090
2412
086c20fe2e97 set default gzip_buffers to 32 4k or 16 8k
Igor Sysoev <igor@sysoev.ru>
parents: 2410
diff changeset
1091 ngx_conf_merge_bufs_value(conf->bufs, prev->bufs,
086c20fe2e97 set default gzip_buffers to 32 4k or 16 8k
Igor Sysoev <igor@sysoev.ru>
parents: 2410
diff changeset
1092 (128 * 1024) / ngx_pagesize, ngx_pagesize);
314
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
1093
2542
925b5df2e0c2 fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents: 2536
diff changeset
1094 ngx_conf_merge_size_value(conf->postpone_gzipping, prev->postpone_gzipping,
925b5df2e0c2 fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents: 2536
diff changeset
1095 0);
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
1096 ngx_conf_merge_value(conf->level, prev->level, 1);
319
7a8ebba985a9 nginx-0.0.3-2004-04-16-19:27:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 315
diff changeset
1097 ngx_conf_merge_size_value(conf->wbits, prev->wbits, MAX_WBITS);
7a8ebba985a9 nginx-0.0.3-2004-04-16-19:27:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 315
diff changeset
1098 ngx_conf_merge_size_value(conf->memlevel, prev->memlevel,
7a8ebba985a9 nginx-0.0.3-2004-04-16-19:27:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 315
diff changeset
1099 MAX_MEM_LEVEL - 1);
577
4d9ea73a627a nginx-0.3.10-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 573
diff changeset
1100 ngx_conf_merge_value(conf->min_length, prev->min_length, 20);
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
1101
3372
6b8e5c882e47 support "*" in gzip_types, ssi_types, etc
Igor Sysoev <igor@sysoev.ru>
parents: 3314
diff changeset
1102 if (ngx_http_merge_types(cf, &conf->types_keys, &conf->types,
6b8e5c882e47 support "*" in gzip_types, ssi_types, etc
Igor Sysoev <igor@sysoev.ru>
parents: 3314
diff changeset
1103 &prev->types_keys, &prev->types,
2166
723df5089c05 use hash in gzip_types, ssi_types, and sub_filter_types
Igor Sysoev <igor@sysoev.ru>
parents: 2051
diff changeset
1104 ngx_http_html_default_types)
723df5089c05 use hash in gzip_types, ssi_types, and sub_filter_types
Igor Sysoev <igor@sysoev.ru>
parents: 2051
diff changeset
1105 != NGX_OK)
723df5089c05 use hash in gzip_types, ssi_types, and sub_filter_types
Igor Sysoev <igor@sysoev.ru>
parents: 2051
diff changeset
1106 {
723df5089c05 use hash in gzip_types, ssi_types, and sub_filter_types
Igor Sysoev <igor@sysoev.ru>
parents: 2051
diff changeset
1107 return NGX_CONF_ERROR;
452
23fb87bddda1 nginx-0.1.1-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
1108 }
23fb87bddda1 nginx-0.1.1-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
1109
23fb87bddda1 nginx-0.1.1-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
1110 return NGX_CONF_OK;
23fb87bddda1 nginx-0.1.1-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
1111 }
23fb87bddda1 nginx-0.1.1-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
1112
23fb87bddda1 nginx-0.1.1-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
1113
681
7e24168b0853 nginx-0.4.0-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 663
diff changeset
1114 static ngx_int_t
7e24168b0853 nginx-0.4.0-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 663
diff changeset
1115 ngx_http_gzip_filter_init(ngx_conf_t *cf)
7e24168b0853 nginx-0.4.0-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 663
diff changeset
1116 {
7e24168b0853 nginx-0.4.0-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 663
diff changeset
1117 ngx_http_next_header_filter = ngx_http_top_header_filter;
7e24168b0853 nginx-0.4.0-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 663
diff changeset
1118 ngx_http_top_header_filter = ngx_http_gzip_header_filter;
7e24168b0853 nginx-0.4.0-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 663
diff changeset
1119
7e24168b0853 nginx-0.4.0-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 663
diff changeset
1120 ngx_http_next_body_filter = ngx_http_top_body_filter;
7e24168b0853 nginx-0.4.0-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 663
diff changeset
1121 ngx_http_top_body_filter = ngx_http_gzip_body_filter;
7e24168b0853 nginx-0.4.0-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 663
diff changeset
1122
7e24168b0853 nginx-0.4.0-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 663
diff changeset
1123 return NGX_OK;
7e24168b0853 nginx-0.4.0-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 663
diff changeset
1124 }
7e24168b0853 nginx-0.4.0-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 663
diff changeset
1125
7e24168b0853 nginx-0.4.0-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 663
diff changeset
1126
497
d7c90bb5ce83 nginx-0.1.23-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 489
diff changeset
1127 static char *
527
7fa11e5c6e96 nginx-0.1.38-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 513
diff changeset
1128 ngx_http_gzip_window(ngx_conf_t *cf, void *post, void *data)
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
1129 {
2290
1a7567e5b988 change int to size_t
Igor Sysoev <igor@sysoev.ru>
parents: 2288
diff changeset
1130 size_t *np = data;
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
1131
2290
1a7567e5b988 change int to size_t
Igor Sysoev <igor@sysoev.ru>
parents: 2288
diff changeset
1132 size_t wbits, wsize;
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
1133
430
1fa5daf7558e nginx-0.0.11-2004-09-19-22:27:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 416
diff changeset
1134 wbits = 15;
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
1135
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
1136 for (wsize = 32 * 1024; wsize > 256; wsize >>= 1) {
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
1137
158
d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 157
diff changeset
1138 if (wsize == *np) {
d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 157
diff changeset
1139 *np = wbits;
430
1fa5daf7558e nginx-0.0.11-2004-09-19-22:27:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 416
diff changeset
1140
1fa5daf7558e nginx-0.0.11-2004-09-19-22:27:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 416
diff changeset
1141 return NGX_CONF_OK;
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
1142 }
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
1143
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
1144 wbits--;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
1145 }
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
1146
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
1147 return "must be 512, 1k, 2k, 4k, 8k, 16k, or 32k";
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
1148 }
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
1149
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
1150
497
d7c90bb5ce83 nginx-0.1.23-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 489
diff changeset
1151 static char *
527
7fa11e5c6e96 nginx-0.1.38-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 513
diff changeset
1152 ngx_http_gzip_hash(ngx_conf_t *cf, void *post, void *data)
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
1153 {
2290
1a7567e5b988 change int to size_t
Igor Sysoev <igor@sysoev.ru>
parents: 2288
diff changeset
1154 size_t *np = data;
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
1155
2290
1a7567e5b988 change int to size_t
Igor Sysoev <igor@sysoev.ru>
parents: 2288
diff changeset
1156 size_t memlevel, hsize;
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
1157
430
1fa5daf7558e nginx-0.0.11-2004-09-19-22:27:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 416
diff changeset
1158 memlevel = 9;
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
1159
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
1160 for (hsize = 128 * 1024; hsize > 256; hsize >>= 1) {
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
1161
158
d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 157
diff changeset
1162 if (hsize == *np) {
d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 157
diff changeset
1163 *np = memlevel;
430
1fa5daf7558e nginx-0.0.11-2004-09-19-22:27:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 416
diff changeset
1164
1fa5daf7558e nginx-0.0.11-2004-09-19-22:27:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 416
diff changeset
1165 return NGX_CONF_OK;
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
1166 }
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
1167
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
1168 memlevel--;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
1169 }
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
1170
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
1171 return "must be 512, 1k, 2k, 4k, 8k, 16k, 32k, 64k, or 128k";
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
1172 }