Mercurial > hg > nginx
annotate src/http/modules/ngx_http_gzip_filter_module.c @ 2292:51487a60eba2
fix the previous commit
author | Igor Sysoev <igor@sysoev.ru> |
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date | Thu, 06 Nov 2008 19:54:54 +0000 |
parents | e9a1cddf2aaa |
children | bbfaeb220e90 |
rev | line source |
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
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4 */ |
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7 #include <ngx_config.h> |
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8 #include <ngx_core.h> |
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9 #include <ngx_http.h> |
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11 #include <zlib.h> |
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12 |
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13 |
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14 typedef struct { |
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15 ngx_flag_t enable; |
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16 ngx_flag_t no_buffer; |
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17 |
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18 ngx_hash_t types; |
452 | 19 |
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20 ngx_bufs_t bufs; |
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21 |
589 | 22 ngx_int_t level; |
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23 size_t wbits; |
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24 size_t memlevel; |
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25 ssize_t min_length; |
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26 |
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27 ngx_array_t *types_keys; |
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28 } ngx_http_gzip_conf_t; |
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29 |
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30 |
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31 typedef struct { |
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32 ngx_chain_t *in; |
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33 ngx_chain_t *free; |
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34 ngx_chain_t *busy; |
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35 ngx_chain_t *out; |
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36 ngx_chain_t **last_out; |
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37 ngx_buf_t *in_buf; |
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38 ngx_buf_t *out_buf; |
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39 ngx_int_t bufs; |
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40 |
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41 off_t length; |
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42 |
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43 void *preallocated; |
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44 char *free_mem; |
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45 ngx_uint_t allocated; |
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46 |
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47 unsigned flush:4; |
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48 unsigned redo:1; |
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49 unsigned done:1; |
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50 unsigned nomem:1; |
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51 unsigned gzheader:1; |
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52 |
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53 size_t zin; |
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54 size_t zout; |
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55 |
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56 uint32_t crc32; |
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57 z_stream zstream; |
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58 ngx_http_request_t *request; |
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59 } ngx_http_gzip_ctx_t; |
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60 |
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61 |
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62 #if (NGX_HAVE_LITTLE_ENDIAN && NGX_HAVE_NONALIGNED) |
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63 |
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64 struct gztrailer { |
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65 uint32_t crc32; |
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66 uint32_t zlen; |
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67 }; |
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68 |
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69 #else /* NGX_HAVE_BIG_ENDIAN || !NGX_HAVE_NONALIGNED */ |
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70 |
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71 struct gztrailer { |
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72 u_char crc32[4]; |
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73 u_char zlen[4]; |
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74 }; |
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75 |
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76 #endif |
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77 |
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78 |
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79 static ngx_int_t ngx_http_gzip_filter_deflate_start(ngx_http_request_t *r, |
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80 ngx_http_gzip_ctx_t *ctx); |
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81 static ngx_int_t ngx_http_gzip_filter_gzheader(ngx_http_request_t *r, |
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82 ngx_http_gzip_ctx_t *ctx); |
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83 static ngx_int_t ngx_http_gzip_filter_add_data(ngx_http_request_t *r, |
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84 ngx_http_gzip_ctx_t *ctx); |
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85 static ngx_int_t ngx_http_gzip_filter_get_buf(ngx_http_request_t *r, |
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86 ngx_http_gzip_ctx_t *ctx); |
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87 static ngx_int_t ngx_http_gzip_filter_deflate(ngx_http_request_t *r, |
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88 ngx_http_gzip_ctx_t *ctx); |
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89 static ngx_int_t ngx_http_gzip_filter_deflate_end(ngx_http_request_t *r, |
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90 ngx_http_gzip_ctx_t *ctx); |
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91 |
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92 static void *ngx_http_gzip_filter_alloc(void *opaque, u_int items, |
497 | 93 u_int size); |
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94 static void ngx_http_gzip_filter_free(void *opaque, void *address); |
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95 |
573 | 96 static ngx_int_t ngx_http_gzip_add_variables(ngx_conf_t *cf); |
97 static ngx_int_t ngx_http_gzip_ratio_variable(ngx_http_request_t *r, | |
98 ngx_http_variable_value_t *v, uintptr_t data); | |
479 | 99 |
681 | 100 static ngx_int_t ngx_http_gzip_filter_init(ngx_conf_t *cf); |
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101 static void *ngx_http_gzip_create_conf(ngx_conf_t *cf); |
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102 static char *ngx_http_gzip_merge_conf(ngx_conf_t *cf, |
497 | 103 void *parent, void *child); |
527 | 104 static char *ngx_http_gzip_window(ngx_conf_t *cf, void *post, void *data); |
105 static char *ngx_http_gzip_hash(ngx_conf_t *cf, void *post, void *data); | |
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106 |
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107 |
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108 static ngx_conf_num_bounds_t ngx_http_gzip_comp_level_bounds = { |
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109 ngx_conf_check_num_bounds, 1, 9 |
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110 }; |
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changeset
|
111 |
527 | 112 static ngx_conf_post_handler_pt ngx_http_gzip_window_p = ngx_http_gzip_window; |
113 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
|
114 |
134
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
115 |
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
116 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
|
117 |
239
574bea0142be
nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
177
diff
changeset
|
118 { ngx_string("gzip"), |
485 | 119 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF |
120 |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
|
121 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
|
122 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
|
123 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
|
124 NULL }, |
134
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
125 |
239
574bea0142be
nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
177
diff
changeset
|
126 { 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
|
127 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
|
128 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
|
129 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
|
130 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
|
131 NULL }, |
134
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
132 |
452 | 133 { ngx_string("gzip_types"), |
134 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
|
135 ngx_http_types_slot, |
452 | 136 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
|
137 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
|
138 &ngx_http_html_default_types[0] }, |
452 | 139 |
239
574bea0142be
nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
177
diff
changeset
|
140 { 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
|
141 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
|
142 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
|
143 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
|
144 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
|
145 &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
|
146 |
239
574bea0142be
nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
177
diff
changeset
|
147 { 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
|
148 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
|
149 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
|
150 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
|
151 offsetof(ngx_http_gzip_conf_t, wbits), |
527 | 152 &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
|
153 |
239
574bea0142be
nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
177
diff
changeset
|
154 { 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
|
155 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
|
156 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
|
157 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
|
158 offsetof(ngx_http_gzip_conf_t, memlevel), |
527 | 159 &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
|
160 |
239
574bea0142be
nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
177
diff
changeset
|
161 { 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
|
162 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
|
163 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
|
164 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
|
165 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
|
166 NULL }, |
134
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
167 |
320
d621239c30f7
nginx-0.0.3-2004-04-18-23:06:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
319
diff
changeset
|
168 { 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
|
169 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
|
170 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
|
171 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
|
172 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
|
173 NULL }, |
314
d71c87d11b16
nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents:
294
diff
changeset
|
174 |
239
574bea0142be
nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
177
diff
changeset
|
175 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
|
176 }; |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
177 |
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 static ngx_http_module_t ngx_http_gzip_filter_module_ctx = { |
573 | 180 ngx_http_gzip_add_variables, /* preconfiguration */ |
681 | 181 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
|
182 |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
183 NULL, /* create main configuration */ |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
184 NULL, /* init main configuration */ |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
185 |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
186 NULL, /* create server configuration */ |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
187 NULL, /* merge server configuration */ |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
188 |
134
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
189 ngx_http_gzip_create_conf, /* create location configuration */ |
489 | 190 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
|
191 }; |
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 ngx_module_t ngx_http_gzip_filter_module = { |
509 | 195 NGX_MODULE_V1, |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
196 &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
|
197 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
|
198 NGX_HTTP_MODULE, /* module type */ |
541 | 199 NULL, /* init master */ |
681 | 200 NULL, /* init module */ |
541 | 201 NULL, /* init process */ |
202 NULL, /* init thread */ | |
203 NULL, /* exit thread */ | |
204 NULL, /* exit process */ | |
205 NULL, /* exit master */ | |
206 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
|
207 }; |
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 |
573 | 210 static ngx_str_t ngx_http_gzip_ratio = ngx_string("gzip_ratio"); |
509 | 211 |
155
46eb23d9471d
nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
154
diff
changeset
|
212 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
|
213 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
|
214 |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
215 |
497 | 216 static ngx_int_t |
217 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
|
218 { |
2051
115e6f029fcc
"gzip_vary on" always sends "Vary: Accept-Encoding" header
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
219 ngx_table_elt_t *h; |
115e6f029fcc
"gzip_vary on" always sends "Vary: Accept-Encoding" header
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
220 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
|
221 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
|
222 |
135
e29909bd9b8a
nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents:
134
diff
changeset
|
223 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
|
224 |
e29909bd9b8a
nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents:
134
diff
changeset
|
225 if (!conf->enable |
452 | 226 || (r->headers_out.status != NGX_HTTP_OK |
227 && r->headers_out.status != NGX_HTTP_FORBIDDEN | |
228 && r->headers_out.status != NGX_HTTP_NOT_FOUND) | |
134
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
229 || r->header_only |
135
e29909bd9b8a
nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents:
134
diff
changeset
|
230 || (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
|
231 && 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
|
232 || (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
|
233 && r->headers_out.content_length_n < conf->min_length) |
2166
723df5089c05
use hash in gzip_types, ssi_types, and sub_filter_types
Igor Sysoev <igor@sysoev.ru>
parents:
2051
diff
changeset
|
234 || ngx_http_test_content_type(r, &conf->types) == NULL |
1790
775edc46ee66
ngx_http_gzip_static_module and gzip_disable
Igor Sysoev <igor@sysoev.ru>
parents:
1626
diff
changeset
|
235 || ngx_http_gzip_ok(r) != NGX_OK) |
134
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
236 { |
155
46eb23d9471d
nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
154
diff
changeset
|
237 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
|
238 } |
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
239 |
501 | 240 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_gzip_ctx_t)); |
241 if (ctx == NULL) { | |
242 return NGX_ERROR; | |
243 } | |
314
d71c87d11b16
nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents:
294
diff
changeset
|
244 |
501 | 245 ngx_http_set_ctx(r, ctx, ngx_http_gzip_filter_module); |
246 | |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
247 ctx->request = r; |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
248 |
1790
775edc46ee66
ngx_http_gzip_static_module and gzip_disable
Igor Sysoev <igor@sysoev.ru>
parents:
1626
diff
changeset
|
249 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
|
250 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
|
251 return NGX_ERROR; |
84036764e215
nginx-0.0.1-2003-10-29-11:30:44 import
Igor Sysoev <igor@sysoev.ru>
parents:
160
diff
changeset
|
252 } |
135
e29909bd9b8a
nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents:
134
diff
changeset
|
253 |
1790
775edc46ee66
ngx_http_gzip_static_module and gzip_disable
Igor Sysoev <igor@sysoev.ru>
parents:
1626
diff
changeset
|
254 h->hash = 1; |
775edc46ee66
ngx_http_gzip_static_module and gzip_disable
Igor Sysoev <igor@sysoev.ru>
parents:
1626
diff
changeset
|
255 h->key.len = sizeof("Content-Encoding") - 1; |
775edc46ee66
ngx_http_gzip_static_module and gzip_disable
Igor Sysoev <igor@sysoev.ru>
parents:
1626
diff
changeset
|
256 h->key.data = (u_char *) "Content-Encoding"; |
775edc46ee66
ngx_http_gzip_static_module and gzip_disable
Igor Sysoev <igor@sysoev.ru>
parents:
1626
diff
changeset
|
257 h->value.len = sizeof("gzip") - 1; |
775edc46ee66
ngx_http_gzip_static_module and gzip_disable
Igor Sysoev <igor@sysoev.ru>
parents:
1626
diff
changeset
|
258 h->value.data = (u_char *) "gzip"; |
1583 | 259 |
1790
775edc46ee66
ngx_http_gzip_static_module and gzip_disable
Igor Sysoev <igor@sysoev.ru>
parents:
1626
diff
changeset
|
260 r->headers_out.content_encoding = h; |
775edc46ee66
ngx_http_gzip_static_module and gzip_disable
Igor Sysoev <igor@sysoev.ru>
parents:
1626
diff
changeset
|
261 |
153
c71aeb75c071
nginx-0.0.1-2003-10-21-20:49:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
262 ctx->length = r->headers_out.content_length_n; |
509 | 263 |
513 | 264 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
|
265 |
577 | 266 ngx_http_clear_content_length(r); |
267 ngx_http_clear_accept_ranges(r); | |
268 | |
155
46eb23d9471d
nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
154
diff
changeset
|
269 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
|
270 } |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
271 |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
272 |
497 | 273 static ngx_int_t |
274 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
|
275 { |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
276 int rc; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
277 ngx_chain_t *cl; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
278 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
|
279 |
243
bf2faf694c19
nginx-0.0.1-2004-01-28-23:38:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
239
diff
changeset
|
280 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
|
281 |
243
bf2faf694c19
nginx-0.0.1-2004-01-28-23:38:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
239
diff
changeset
|
282 if (ctx == NULL || ctx->done) { |
177
4db54fdbcbe7
nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents:
166
diff
changeset
|
283 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
|
284 } |
4db54fdbcbe7
nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents:
166
diff
changeset
|
285 |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
286 if (ctx->preallocated == NULL) { |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
287 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
|
288 goto failed; |
430
1fa5daf7558e
nginx-0.0.11-2004-09-19-22:27:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
416
diff
changeset
|
289 } |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
290 } |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
291 |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
292 if (in) { |
134
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
293 if (ngx_chain_add_copy(r->pool, &ctx->in, in) == NGX_ERROR) { |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
294 goto failed; |
134
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
295 } |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
296 } |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
297 |
2287
baa61933d5ed
use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents:
2166
diff
changeset
|
298 if (ctx->nomem) { |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
299 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
300 /* flush busy buffers */ |
2287
baa61933d5ed
use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents:
2166
diff
changeset
|
301 |
baa61933d5ed
use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents:
2166
diff
changeset
|
302 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
|
303 goto failed; |
2287
baa61933d5ed
use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents:
2166
diff
changeset
|
304 } |
baa61933d5ed
use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents:
2166
diff
changeset
|
305 |
baa61933d5ed
use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents:
2166
diff
changeset
|
306 cl = NULL; |
baa61933d5ed
use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents:
2166
diff
changeset
|
307 |
baa61933d5ed
use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents:
2166
diff
changeset
|
308 ngx_chain_update_chains(&ctx->free, &ctx->busy, &cl, |
baa61933d5ed
use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents:
2166
diff
changeset
|
309 (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
|
310 ctx->nomem = 0; |
baa61933d5ed
use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents:
2166
diff
changeset
|
311 } |
141
656d468f4ead
nginx-0.0.1-2003-10-08-19:32:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
136
diff
changeset
|
312 |
135
e29909bd9b8a
nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents:
134
diff
changeset
|
313 for ( ;; ) { |
e29909bd9b8a
nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents:
134
diff
changeset
|
314 |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
315 /* cycle while we can write to a client */ |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
316 |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
317 for ( ;; ) { |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
318 |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
319 /* 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
|
320 |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
321 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
|
322 |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
323 if (rc == NGX_DECLINED) { |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
324 break; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
325 } |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
326 |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
327 if (rc == NGX_AGAIN) { |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
328 continue; |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
329 } |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
330 |
430
1fa5daf7558e
nginx-0.0.11-2004-09-19-22:27:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
416
diff
changeset
|
331 |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
332 /* ... 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
|
333 |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
334 rc = ngx_http_gzip_filter_get_buf(r, ctx); |
501 | 335 |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
336 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
|
337 break; |
ba876b26b76d
nginx-0.0.3-2004-04-21-22:54:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
322
diff
changeset
|
338 } |
ba876b26b76d
nginx-0.0.3-2004-04-21-22:54:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
322
diff
changeset
|
339 |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
340 if (rc == NGX_ERROR) { |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
341 goto failed; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
342 } |
134
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
343 |
479 | 344 |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
345 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
|
346 |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
347 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
|
348 break; |
ba876b26b76d
nginx-0.0.3-2004-04-21-22:54:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
322
diff
changeset
|
349 } |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
350 |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
351 if (rc == NGX_ERROR) { |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
352 goto failed; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
353 } |
501 | 354 |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
355 /* rc == NGX_AGAIN */ |
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:
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357 |
1626 | 358 if (ctx->out == NULL) { |
2292 | 359 return ctx->busy ? NGX_AGAIN : NGX_OK; |
430
1fa5daf7558e
nginx-0.0.11-2004-09-19-22:27:00 import
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416
diff
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|
360 } |
1fa5daf7558e
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416
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361 |
2291
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362 if (!ctx->gzheader) { |
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363 if (ngx_http_gzip_filter_gzheader(r, ctx) != NGX_OK) { |
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364 goto failed; |
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365 } |
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366 } |
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367 |
2287
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368 rc = ngx_http_next_body_filter(r, ctx->out); |
141
656d468f4ead
nginx-0.0.1-2003-10-08-19:32:54 import
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369 |
2287
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370 if (rc == NGX_ERROR) { |
2291
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371 goto failed; |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
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diff
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|
372 } |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
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|
373 |
154
eac26585476e
nginx-0.0.1-2003-10-22-11:05:29 import
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153
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|
374 ngx_chain_update_chains(&ctx->free, &ctx->busy, &ctx->out, |
501 | 375 (ngx_buf_tag_t) &ngx_http_gzip_filter_module); |
134
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
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133
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|
376 ctx->last_out = &ctx->out; |
327
e0f3f238db09
nginx-0.0.3-2004-04-26-17:40:01 import
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326
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377 |
2287
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378 ctx->nomem = 0; |
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379 |
327
e0f3f238db09
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|
380 if (ctx->done) { |
2287
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381 return rc; |
327
e0f3f238db09
nginx-0.0.3-2004-04-26-17:40:01 import
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382 } |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
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383 } |
2291
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384 |
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385 /* unreachable */ |
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386 |
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387 failed: |
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388 |
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389 ctx->done = 1; |
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390 |
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391 if (ctx->preallocated) { |
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392 deflateEnd(&ctx->zstream); |
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393 |
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394 ngx_pfree(r->pool, ctx->preallocated); |
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395 } |
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396 |
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397 return NGX_ERROR; |
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398 } |
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399 |
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400 |
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401 static ngx_int_t |
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402 ngx_http_gzip_filter_deflate_start(ngx_http_request_t *r, |
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403 ngx_http_gzip_ctx_t *ctx) |
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404 { |
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405 int rc, wbits, memlevel; |
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406 ngx_http_gzip_conf_t *conf; |
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407 |
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408 conf = ngx_http_get_module_loc_conf(r, ngx_http_gzip_filter_module); |
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409 |
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410 wbits = conf->wbits; |
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411 memlevel = conf->memlevel; |
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412 |
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413 if (ctx->length > 0) { |
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414 |
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415 /* the actual zlib window size is smaller by 262 bytes */ |
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416 |
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417 while (ctx->length < ((1 << (wbits - 1)) - 262)) { |
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418 wbits--; |
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419 memlevel--; |
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420 } |
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421 } |
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422 |
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|
423 /* |
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424 * We preallocate a memory for zlib in one buffer (200K-400K), this |
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425 * decreases a number of malloc() and free() calls and also probably |
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426 * decreases a number of syscalls (sbrk()/mmap() and so on). |
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427 * Besides we free the memory as soon as a gzipping will complete |
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428 * and do not wait while a whole response will be sent to a client. |
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429 * |
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|
430 * 8K is for zlib deflate_state, it takes |
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|
431 * *) 5816 bytes on i386 and sparc64 (32-bit mode) |
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432 * *) 5920 bytes on amd64 and sparc64 |
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433 */ |
e9a1cddf2aaa
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|
434 |
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435 ctx->allocated = 8192 + (1 << (wbits + 2)) + (1 << (memlevel + 9)); |
e9a1cddf2aaa
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436 |
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|
437 ctx->preallocated = ngx_palloc(r->pool, ctx->allocated); |
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438 if (ctx->preallocated == NULL) { |
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439 return NGX_ERROR; |
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440 } |
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|
441 |
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|
442 ctx->free_mem = ctx->preallocated; |
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443 |
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|
444 ctx->zstream.zalloc = ngx_http_gzip_filter_alloc; |
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445 ctx->zstream.zfree = ngx_http_gzip_filter_free; |
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446 ctx->zstream.opaque = ctx; |
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447 |
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448 rc = deflateInit2(&ctx->zstream, (int) conf->level, Z_DEFLATED, |
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449 -wbits, memlevel, Z_DEFAULT_STRATEGY); |
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450 |
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451 if (rc != Z_OK) { |
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452 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0, |
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453 "deflateInit2() failed: %d", rc); |
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454 return NGX_ERROR; |
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455 } |
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456 |
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457 r->connection->buffered |= NGX_HTTP_GZIP_BUFFERED; |
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458 |
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459 ctx->last_out = &ctx->out; |
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460 ctx->crc32 = crc32(0L, Z_NULL, 0); |
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461 ctx->flush = Z_NO_FLUSH; |
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462 |
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463 return NGX_OK; |
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464 } |
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465 |
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466 |
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|
467 static ngx_int_t |
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468 ngx_http_gzip_filter_gzheader(ngx_http_request_t *r, ngx_http_gzip_ctx_t *ctx) |
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469 { |
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470 ngx_buf_t *b; |
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471 ngx_chain_t *cl; |
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472 static u_char gzheader[10] = |
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473 { 0x1f, 0x8b, Z_DEFLATED, 0, 0, 0, 0, 0, 0, 3 }; |
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474 |
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475 b = ngx_pcalloc(r->pool, sizeof(ngx_buf_t)); |
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476 if (b == NULL) { |
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477 return NGX_ERROR; |
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478 } |
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479 |
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480 b->memory = 1; |
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481 b->pos = gzheader; |
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482 b->last = b->pos + 10; |
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483 |
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484 cl = ngx_alloc_chain_link(r->pool); |
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485 if (cl == NULL) { |
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486 return NGX_ERROR; |
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487 } |
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488 |
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489 cl->buf = b; |
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490 cl->next = ctx->out; |
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491 ctx->out = cl; |
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492 |
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493 ctx->gzheader = 1; |
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494 |
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495 return NGX_OK; |
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496 } |
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497 |
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498 |
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499 static ngx_int_t |
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500 ngx_http_gzip_filter_add_data(ngx_http_request_t *r, ngx_http_gzip_ctx_t *ctx) |
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501 { |
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502 if (ctx->zstream.avail_in || ctx->flush != Z_NO_FLUSH || ctx->redo) { |
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503 return NGX_OK; |
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504 } |
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505 |
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506 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
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507 "gzip in: %p", ctx->in); |
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508 |
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*) split ngx_http_gzip_body_filter()
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509 if (ctx->in == NULL) { |
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510 return NGX_DECLINED; |
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511 } |
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512 |
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513 ctx->in_buf = ctx->in->buf; |
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514 ctx->in = ctx->in->next; |
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515 |
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516 ctx->zstream.next_in = ctx->in_buf->pos; |
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517 ctx->zstream.avail_in = ctx->in_buf->last - ctx->in_buf->pos; |
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518 |
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519 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
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520 "gzip in_buf:%p ni:%p ai:%ud", |
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521 ctx->in_buf, |
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522 ctx->zstream.next_in, ctx->zstream.avail_in); |
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523 |
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524 if (ctx->in_buf->last_buf) { |
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525 ctx->flush = Z_FINISH; |
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526 |
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527 } else if (ctx->in_buf->flush) { |
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528 ctx->flush = Z_SYNC_FLUSH; |
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529 } |
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*) split ngx_http_gzip_body_filter()
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|
530 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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|
531 if (ctx->zstream.avail_in) { |
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*) split ngx_http_gzip_body_filter()
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|
532 |
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*) split ngx_http_gzip_body_filter()
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533 ctx->crc32 = crc32(ctx->crc32, ctx->zstream.next_in, |
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*) split ngx_http_gzip_body_filter()
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|
534 ctx->zstream.avail_in); |
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*) split ngx_http_gzip_body_filter()
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|
535 |
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*) split ngx_http_gzip_body_filter()
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|
536 } else if (ctx->flush == Z_NO_FLUSH) { |
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*) split ngx_http_gzip_body_filter()
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|
537 return NGX_AGAIN; |
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*) split ngx_http_gzip_body_filter()
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|
538 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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|
539 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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|
540 return NGX_OK; |
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*) split ngx_http_gzip_body_filter()
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|
541 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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|
542 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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|
543 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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|
544 static ngx_int_t |
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*) split ngx_http_gzip_body_filter()
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|
545 ngx_http_gzip_filter_get_buf(ngx_http_request_t *r, ngx_http_gzip_ctx_t *ctx) |
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*) split ngx_http_gzip_body_filter()
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|
546 { |
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*) split ngx_http_gzip_body_filter()
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|
547 ngx_http_gzip_conf_t *conf; |
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*) split ngx_http_gzip_body_filter()
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|
548 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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|
549 if (ctx->zstream.avail_out) { |
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*) split ngx_http_gzip_body_filter()
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550 return NGX_OK; |
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*) split ngx_http_gzip_body_filter()
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|
551 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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|
552 |
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|
553 conf = ngx_http_get_module_loc_conf(r, ngx_http_gzip_filter_module); |
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|
554 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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|
555 if (ctx->free) { |
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*) split ngx_http_gzip_body_filter()
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|
556 ctx->out_buf = ctx->free->buf; |
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|
557 ctx->free = ctx->free->next; |
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*) split ngx_http_gzip_body_filter()
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|
558 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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|
559 } else if (ctx->bufs < conf->bufs.num) { |
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|
560 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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|
561 ctx->out_buf = ngx_create_temp_buf(r->pool, conf->bufs.size); |
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562 if (ctx->out_buf == NULL) { |
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*) split ngx_http_gzip_body_filter()
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563 return NGX_ERROR; |
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*) split ngx_http_gzip_body_filter()
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|
564 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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|
565 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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|
566 ctx->out_buf->tag = (ngx_buf_tag_t) &ngx_http_gzip_filter_module; |
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567 ctx->out_buf->recycled = 1; |
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|
568 ctx->bufs++; |
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|
569 |
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570 } else { |
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|
571 ctx->nomem = 1; |
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|
572 return NGX_DECLINED; |
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*) split ngx_http_gzip_body_filter()
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|
573 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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|
574 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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|
575 ctx->zstream.next_out = ctx->out_buf->pos; |
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|
576 ctx->zstream.avail_out = conf->bufs.size; |
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|
577 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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|
578 return NGX_OK; |
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*) split ngx_http_gzip_body_filter()
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|
579 } |
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580 |
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581 |
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582 static ngx_int_t |
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583 ngx_http_gzip_filter_deflate(ngx_http_request_t *r, ngx_http_gzip_ctx_t *ctx) |
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584 { |
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585 int rc; |
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586 ngx_chain_t *cl; |
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587 ngx_http_gzip_conf_t *conf; |
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588 |
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589 ngx_log_debug6(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
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590 "deflate in: ni:%p no:%p ai:%ud ao:%ud fl:%d redo:%d", |
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591 ctx->zstream.next_in, ctx->zstream.next_out, |
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592 ctx->zstream.avail_in, ctx->zstream.avail_out, |
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593 ctx->flush, ctx->redo); |
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594 |
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595 rc = deflate(&ctx->zstream, ctx->flush); |
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596 |
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597 if (rc != Z_OK && rc != Z_STREAM_END) { |
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598 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0, |
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599 "deflate() failed: %d, %d", ctx->flush, rc); |
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600 return NGX_ERROR; |
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601 } |
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602 |
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603 ngx_log_debug5(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
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604 "deflate out: ni:%p no:%p ai:%ud ao:%ud rc:%d", |
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605 ctx->zstream.next_in, ctx->zstream.next_out, |
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606 ctx->zstream.avail_in, ctx->zstream.avail_out, |
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607 rc); |
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608 |
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609 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
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610 "gzip in_buf:%p pos:%p", |
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611 ctx->in_buf, ctx->in_buf->pos); |
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612 |
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613 if (ctx->zstream.next_in) { |
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614 ctx->in_buf->pos = ctx->zstream.next_in; |
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615 |
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616 if (ctx->zstream.avail_in == 0) { |
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617 ctx->zstream.next_in = NULL; |
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618 } |
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619 } |
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620 |
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621 ctx->out_buf->last = ctx->zstream.next_out; |
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622 |
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623 if (ctx->zstream.avail_out == 0) { |
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624 |
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625 /* zlib wants to output some more gzipped data */ |
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626 |
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*) split ngx_http_gzip_body_filter()
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627 cl = ngx_alloc_chain_link(r->pool); |
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628 if (cl == NULL) { |
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629 return NGX_ERROR; |
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630 } |
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631 |
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632 cl->buf = ctx->out_buf; |
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633 cl->next = NULL; |
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634 *ctx->last_out = cl; |
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635 ctx->last_out = &cl->next; |
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636 |
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637 ctx->redo = 1; |
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638 |
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639 return NGX_AGAIN; |
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640 } |
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641 |
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642 ctx->redo = 0; |
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643 |
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644 if (ctx->flush == Z_SYNC_FLUSH) { |
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645 |
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646 ctx->zstream.avail_out = 0; |
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647 ctx->out_buf->flush = 1; |
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648 ctx->flush = Z_NO_FLUSH; |
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649 |
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*) split ngx_http_gzip_body_filter()
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650 cl = ngx_alloc_chain_link(r->pool); |
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651 if (cl == NULL) { |
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652 return NGX_ERROR; |
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653 } |
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*) split ngx_http_gzip_body_filter()
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|
654 |
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*) split ngx_http_gzip_body_filter()
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655 cl->buf = ctx->out_buf; |
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656 cl->next = NULL; |
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657 *ctx->last_out = cl; |
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658 ctx->last_out = &cl->next; |
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|
659 |
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*) split ngx_http_gzip_body_filter()
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660 return NGX_OK; |
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*) split ngx_http_gzip_body_filter()
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|
661 } |
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*) split ngx_http_gzip_body_filter()
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|
662 |
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*) split ngx_http_gzip_body_filter()
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|
663 if (rc == Z_STREAM_END) { |
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664 |
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|
665 if (ngx_http_gzip_filter_deflate_end(r, ctx) != NGX_OK) { |
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*) split ngx_http_gzip_body_filter()
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666 return NGX_ERROR; |
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|
667 } |
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*) split ngx_http_gzip_body_filter()
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|
668 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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|
669 return NGX_OK; |
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|
670 } |
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*) split ngx_http_gzip_body_filter()
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|
671 |
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672 conf = ngx_http_get_module_loc_conf(r, ngx_http_gzip_filter_module); |
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673 |
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|
674 if (conf->no_buffer && ctx->in == NULL) { |
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|
675 |
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*) split ngx_http_gzip_body_filter()
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|
676 cl = ngx_alloc_chain_link(r->pool); |
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|
677 if (cl == NULL) { |
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|
678 return NGX_ERROR; |
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*) split ngx_http_gzip_body_filter()
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|
679 } |
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|
680 |
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|
681 cl->buf = ctx->out_buf; |
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682 cl->next = NULL; |
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683 *ctx->last_out = cl; |
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|
684 ctx->last_out = &cl->next; |
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|
685 |
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*) split ngx_http_gzip_body_filter()
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|
686 return NGX_OK; |
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*) split ngx_http_gzip_body_filter()
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|
687 } |
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*) split ngx_http_gzip_body_filter()
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|
688 |
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*) split ngx_http_gzip_body_filter()
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|
689 return NGX_AGAIN; |
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690 } |
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691 |
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692 |
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693 static ngx_int_t |
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694 ngx_http_gzip_filter_deflate_end(ngx_http_request_t *r, |
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695 ngx_http_gzip_ctx_t *ctx) |
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696 { |
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697 int rc; |
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698 ngx_buf_t *b; |
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699 ngx_chain_t *cl; |
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700 struct gztrailer *trailer; |
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701 |
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702 ctx->zin = ctx->zstream.total_in; |
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703 ctx->zout = 10 + ctx->zstream.total_out + 8; |
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704 |
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705 rc = deflateEnd(&ctx->zstream); |
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706 |
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707 if (rc != Z_OK) { |
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708 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0, |
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709 "deflateEnd() failed: %d", rc); |
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710 return NGX_ERROR; |
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711 } |
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712 |
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713 ngx_pfree(r->pool, ctx->preallocated); |
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714 |
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715 cl = ngx_alloc_chain_link(r->pool); |
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716 if (cl == NULL) { |
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717 return NGX_ERROR; |
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718 } |
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719 |
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720 cl->buf = ctx->out_buf; |
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721 cl->next = NULL; |
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722 *ctx->last_out = cl; |
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723 ctx->last_out = &cl->next; |
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724 |
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725 if (ctx->zstream.avail_out >= 8) { |
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726 trailer = (struct gztrailer *) ctx->out_buf->last; |
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727 ctx->out_buf->last += 8; |
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728 ctx->out_buf->last_buf = 1; |
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729 |
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730 } else { |
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731 b = ngx_create_temp_buf(r->pool, 8); |
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732 if (b == NULL) { |
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733 return NGX_ERROR; |
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734 } |
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735 |
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736 b->last_buf = 1; |
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737 |
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738 cl = ngx_alloc_chain_link(r->pool); |
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739 if (cl == NULL) { |
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740 return NGX_ERROR; |
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741 } |
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742 |
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743 cl->buf = b; |
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744 cl->next = NULL; |
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745 *ctx->last_out = cl; |
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746 ctx->last_out = &cl->next; |
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747 trailer = (struct gztrailer *) b->pos; |
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748 b->last += 8; |
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749 } |
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750 |
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751 #if (NGX_HAVE_LITTLE_ENDIAN && NGX_HAVE_NONALIGNED) |
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752 |
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753 trailer->crc32 = ctx->crc32; |
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754 trailer->zlen = ctx->zin; |
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*) split ngx_http_gzip_body_filter()
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755 |
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|
756 #else |
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757 |
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758 trailer->crc32[0] = (u_char) (ctx->crc32 & 0xff); |
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|
759 trailer->crc32[1] = (u_char) ((ctx->crc32 >> 8) & 0xff); |
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760 trailer->crc32[2] = (u_char) ((ctx->crc32 >> 16) & 0xff); |
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761 trailer->crc32[3] = (u_char) ((ctx->crc32 >> 24) & 0xff); |
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762 |
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763 trailer->zlen[0] = (u_char) (ctx->zin & 0xff); |
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764 trailer->zlen[1] = (u_char) ((ctx->zin >> 8) & 0xff); |
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765 trailer->zlen[2] = (u_char) ((ctx->zin >> 16) & 0xff); |
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766 trailer->zlen[3] = (u_char) ((ctx->zin >> 24) & 0xff); |
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767 |
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|
768 #endif |
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769 |
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changeset
|
770 ctx->zstream.avail_in = 0; |
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771 ctx->zstream.avail_out = 0; |
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772 |
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|
773 ctx->done = 1; |
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|
774 |
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changeset
|
775 r->connection->buffered &= ~NGX_HTTP_GZIP_BUFFERED; |
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776 |
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777 return NGX_OK; |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
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parents:
diff
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|
778 } |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
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parents:
diff
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|
779 |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
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diff
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|
780 |
497 | 781 static void * |
782 ngx_http_gzip_filter_alloc(void *opaque, u_int items, u_int size) | |
156
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783 { |
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784 ngx_http_gzip_ctx_t *ctx = opaque; |
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785 |
294
5cfd65b8b0a7
nginx-0.0.3-2004-03-23-09:01:52 import
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292
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|
786 void *p; |
5cfd65b8b0a7
nginx-0.0.3-2004-03-23-09:01:52 import
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|
787 ngx_uint_t alloc; |
156
afc333135a6b
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788 |
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789 alloc = items * size; |
461 | 790 |
156
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791 if (alloc % 512 != 0) { |
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792 |
346
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
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344
diff
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|
793 /* |
461 | 794 * The zlib deflate_state allocation, it takes about 6K, |
795 * we allocate 8K. Other allocations are divisible by 512. | |
346
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
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|
796 */ |
156
afc333135a6b
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797 |
346
55e496a8ece3
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|
798 alloc = (alloc + ngx_pagesize - 1) & ~(ngx_pagesize - 1); |
156
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799 } |
afc333135a6b
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|
800 |
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|
801 if (alloc <= ctx->allocated) { |
afc333135a6b
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|
802 p = ctx->free_mem; |
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803 ctx->free_mem += alloc; |
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155
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804 ctx->allocated -= alloc; |
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parents:
155
diff
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805 |
257
70e1c7d2b83d
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diff
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|
806 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, ctx->request->connection->log, 0, |
461 | 807 "gzip alloc: n:%ud s:%ud a:%ud p:%p", |
257
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|
808 items, size, alloc, p); |
156
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parents:
155
diff
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809 |
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810 return p; |
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parents:
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diff
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811 } |
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nginx-0.0.1-2003-10-23-10:13:16 import
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parents:
155
diff
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|
812 |
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nginx-0.0.1-2003-10-23-10:13:16 import
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parents:
155
diff
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813 ngx_log_error(NGX_LOG_ALERT, ctx->request->connection->log, 0, |
461 | 814 "gzip filter failed to use preallocated memory: %ud of %ud", |
156
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diff
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|
815 items * size, ctx->allocated); |
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nginx-0.0.1-2003-10-23-10:13:16 import
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parents:
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diff
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|
816 |
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parents:
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diff
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817 p = ngx_palloc(ctx->request->pool, items * size); |
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parents:
155
diff
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818 |
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parents:
155
diff
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|
819 return p; |
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parents:
155
diff
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|
820 } |
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parents:
155
diff
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|
821 |
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822 |
497 | 823 static void |
824 ngx_http_gzip_filter_free(void *opaque, void *address) | |
156
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diff
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825 { |
282
30310107dbc9
nginx-0.0.2-2004-03-09-22:47:07 import
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265
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|
826 #if 0 |
156
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parents:
155
diff
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|
827 ngx_http_gzip_ctx_t *ctx = opaque; |
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parents:
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diff
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|
828 |
257
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|
829 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ctx->request->connection->log, 0, |
461 | 830 "gzip free: %p", address); |
156
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diff
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|
831 #endif |
afc333135a6b
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parents:
155
diff
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|
832 } |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
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parents:
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diff
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|
833 |
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diff
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|
834 |
497 | 835 static ngx_int_t |
573 | 836 ngx_http_gzip_add_variables(ngx_conf_t *cf) |
177
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diff
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|
837 { |
880 | 838 ngx_http_variable_t *var; |
177
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diff
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|
839 |
583 | 840 var = ngx_http_add_variable(cf, &ngx_http_gzip_ratio, NGX_HTTP_VAR_NOHASH); |
573 | 841 if (var == NULL) { |
842 return NGX_ERROR; | |
843 } | |
844 | |
637 | 845 var->get_handler = ngx_http_gzip_ratio_variable; |
573 | 846 |
177
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847 return NGX_OK; |
4db54fdbcbe7
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diff
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|
848 } |
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diff
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|
849 |
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|
850 |
497 | 851 static ngx_int_t |
573 | 852 ngx_http_gzip_ratio_variable(ngx_http_request_t *r, |
853 ngx_http_variable_value_t *v, uintptr_t data) | |
854 { | |
855 ngx_uint_t zint, zfrac; | |
856 ngx_http_gzip_ctx_t *ctx; | |
857 | |
577 | 858 v->valid = 1; |
1565 | 859 v->no_cacheable = 0; |
573 | 860 v->not_found = 0; |
861 | |
862 ctx = ngx_http_get_module_ctx(r, ngx_http_gzip_filter_module); | |
863 | |
864 if (ctx == NULL || ctx->zout == 0) { | |
865 v->not_found = 1; | |
866 return NGX_OK; | |
867 } | |
868 | |
2049 | 869 v->data = ngx_pnalloc(r->pool, NGX_INT32_LEN + 3); |
573 | 870 if (v->data == NULL) { |
871 return NGX_ERROR; | |
872 } | |
873 | |
874 zint = (ngx_uint_t) (ctx->zin / ctx->zout); | |
875 zfrac = (ngx_uint_t) ((ctx->zin * 100 / ctx->zout) % 100); | |
876 | |
877 if ((ctx->zin * 1000 / ctx->zout) % 10 > 4) { | |
878 | |
879 /* the rounding, e.g., 2.125 to 2.13 */ | |
880 | |
881 zfrac++; | |
882 | |
883 if (zfrac > 99) { | |
884 zint++; | |
885 zfrac = 0; | |
886 } | |
887 } | |
888 | |
889 v->len = ngx_sprintf(v->data, "%ui.%02ui", zint, zfrac) - v->data; | |
890 | |
891 return NGX_OK; | |
892 } | |
893 | |
894 | |
497 | 895 static void * |
896 ngx_http_gzip_create_conf(ngx_conf_t *cf) | |
134
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133
diff
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|
897 { |
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
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parents:
133
diff
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|
898 ngx_http_gzip_conf_t *conf; |
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|
899 |
501 | 900 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_gzip_conf_t)); |
901 if (conf == NULL) { | |
430
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parents:
416
diff
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|
902 return NGX_CONF_ERROR; |
1fa5daf7558e
nginx-0.0.11-2004-09-19-22:27:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
416
diff
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|
903 } |
134
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
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parents:
133
diff
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|
904 |
430
1fa5daf7558e
nginx-0.0.11-2004-09-19-22:27:00 import
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parents:
416
diff
changeset
|
905 /* |
479 | 906 * set by ngx_pcalloc(): |
907 * | |
908 * 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
|
909 * conf->types = { NULL }; |
723df5089c05
use hash in gzip_types, ssi_types, and sub_filter_types
Igor Sysoev <igor@sysoev.ru>
parents:
2051
diff
changeset
|
910 * 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
|
911 */ |
320
d621239c30f7
nginx-0.0.3-2004-04-18-23:06:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
319
diff
changeset
|
912 |
134
d57c6835225c
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parents:
133
diff
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|
913 conf->enable = NGX_CONF_UNSET; |
290
87e73f067470
nginx-0.0.2-2004-03-16-10:10:12 import
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parents:
289
diff
changeset
|
914 conf->no_buffer = NGX_CONF_UNSET; |
314
d71c87d11b16
nginx-0.0.3-2004-04-14-09:57:36 import
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parents:
294
diff
changeset
|
915 |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
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parents:
155
diff
changeset
|
916 conf->level = NGX_CONF_UNSET; |
356
2e3cbc1bbe3c
nginx-0.0.7-2004-06-16-19:32:11 import
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parents:
355
diff
changeset
|
917 conf->wbits = (size_t) NGX_CONF_UNSET; |
2e3cbc1bbe3c
nginx-0.0.7-2004-06-16-19:32:11 import
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parents:
355
diff
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|
918 conf->memlevel = (size_t) NGX_CONF_UNSET; |
2e3cbc1bbe3c
nginx-0.0.7-2004-06-16-19:32:11 import
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parents:
355
diff
changeset
|
919 conf->min_length = NGX_CONF_UNSET; |
134
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parents:
133
diff
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|
920 |
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
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parents:
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diff
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|
921 return conf; |
d57c6835225c
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parents:
133
diff
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|
922 } |
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
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parents:
133
diff
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|
923 |
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
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parents:
133
diff
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|
924 |
497 | 925 static char * |
926 ngx_http_gzip_merge_conf(ngx_conf_t *cf, void *parent, void *child) | |
134
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parents:
133
diff
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|
927 { |
d57c6835225c
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parents:
133
diff
changeset
|
928 ngx_http_gzip_conf_t *prev = parent; |
d57c6835225c
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parents:
133
diff
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|
929 ngx_http_gzip_conf_t *conf = child; |
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
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parents:
133
diff
changeset
|
930 |
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
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parents:
133
diff
changeset
|
931 ngx_conf_merge_value(conf->enable, prev->enable, 0); |
314
d71c87d11b16
nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents:
294
diff
changeset
|
932 |
346
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
344
diff
changeset
|
933 ngx_conf_merge_bufs_value(conf->bufs, prev->bufs, 4, ngx_pagesize); |
314
d71c87d11b16
nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents:
294
diff
changeset
|
934 |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
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parents:
155
diff
changeset
|
935 ngx_conf_merge_value(conf->level, prev->level, 1); |
319
7a8ebba985a9
nginx-0.0.3-2004-04-16-19:27:31 import
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parents:
315
diff
changeset
|
936 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
|
937 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
|
938 MAX_MEM_LEVEL - 1); |
577 | 939 ngx_conf_merge_value(conf->min_length, prev->min_length, 20); |
134
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
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parents:
133
diff
changeset
|
940 ngx_conf_merge_value(conf->no_buffer, prev->no_buffer, 0); |
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
941 |
2166
723df5089c05
use hash in gzip_types, ssi_types, and sub_filter_types
Igor Sysoev <igor@sysoev.ru>
parents:
2051
diff
changeset
|
942 if (ngx_http_merge_types(cf, conf->types_keys, &conf->types, |
723df5089c05
use hash in gzip_types, ssi_types, and sub_filter_types
Igor Sysoev <igor@sysoev.ru>
parents:
2051
diff
changeset
|
943 prev->types_keys, &prev->types, |
723df5089c05
use hash in gzip_types, ssi_types, and sub_filter_types
Igor Sysoev <igor@sysoev.ru>
parents:
2051
diff
changeset
|
944 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
|
945 != NGX_OK) |
723df5089c05
use hash in gzip_types, ssi_types, and sub_filter_types
Igor Sysoev <igor@sysoev.ru>
parents:
2051
diff
changeset
|
946 { |
723df5089c05
use hash in gzip_types, ssi_types, and sub_filter_types
Igor Sysoev <igor@sysoev.ru>
parents:
2051
diff
changeset
|
947 return NGX_CONF_ERROR; |
452 | 948 } |
949 | |
950 return NGX_CONF_OK; | |
951 } | |
952 | |
953 | |
681 | 954 static ngx_int_t |
955 ngx_http_gzip_filter_init(ngx_conf_t *cf) | |
956 { | |
957 ngx_http_next_header_filter = ngx_http_top_header_filter; | |
958 ngx_http_top_header_filter = ngx_http_gzip_header_filter; | |
959 | |
960 ngx_http_next_body_filter = ngx_http_top_body_filter; | |
961 ngx_http_top_body_filter = ngx_http_gzip_body_filter; | |
962 | |
963 return NGX_OK; | |
964 } | |
965 | |
966 | |
497 | 967 static char * |
527 | 968 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
|
969 { |
2290 | 970 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
|
971 |
2290 | 972 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
|
973 |
430
1fa5daf7558e
nginx-0.0.11-2004-09-19-22:27:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
416
diff
changeset
|
974 wbits = 15; |
156
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 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
|
977 |
158
d377ee423603
nginx-0.0.1-2003-10-24-10:53:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
157
diff
changeset
|
978 if (wsize == *np) { |
d377ee423603
nginx-0.0.1-2003-10-24-10:53:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
157
diff
changeset
|
979 *np = wbits; |
430
1fa5daf7558e
nginx-0.0.11-2004-09-19-22:27:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
416
diff
changeset
|
980 |
1fa5daf7558e
nginx-0.0.11-2004-09-19-22:27:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
416
diff
changeset
|
981 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
|
982 } |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
983 |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
984 wbits--; |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
985 } |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
986 |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
987 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
|
988 } |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
989 |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
990 |
497 | 991 static char * |
527 | 992 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
|
993 { |
2290 | 994 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
|
995 |
2290 | 996 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
|
997 |
430
1fa5daf7558e
nginx-0.0.11-2004-09-19-22:27:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
416
diff
changeset
|
998 memlevel = 9; |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
999 |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
1000 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
|
1001 |
158
d377ee423603
nginx-0.0.1-2003-10-24-10:53:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
157
diff
changeset
|
1002 if (hsize == *np) { |
d377ee423603
nginx-0.0.1-2003-10-24-10:53:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
157
diff
changeset
|
1003 *np = memlevel; |
430
1fa5daf7558e
nginx-0.0.11-2004-09-19-22:27:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
416
diff
changeset
|
1004 |
1fa5daf7558e
nginx-0.0.11-2004-09-19-22:27:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
416
diff
changeset
|
1005 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
|
1006 } |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
1007 |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
1008 memlevel--; |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
1009 } |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
1010 |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
1011 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
|
1012 } |