Mercurial > hg > nginx
annotate src/http/modules/ngx_http_gzip_filter_module.c @ 2468:76925110cdae
style fix: remove tabs
author | Igor Sysoev <igor@sysoev.ru> |
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date | Mon, 26 Jan 2009 14:35:10 +0000 |
parents | 3d60d55b9ad0 |
children | a6d6d762c554 |
rev | line source |
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
441
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4 */ |
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6 |
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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 |
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38 ngx_chain_t *copied; |
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39 ngx_chain_t *copy_buf; |
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40 |
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41 ngx_buf_t *in_buf; |
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42 ngx_buf_t *out_buf; |
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43 ngx_int_t bufs; |
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44 |
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45 void *preallocated; |
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46 char *free_mem; |
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47 ngx_uint_t allocated; |
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48 |
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49 int wbits; |
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50 int memlevel; |
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51 |
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52 unsigned flush:4; |
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53 unsigned redo:1; |
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54 unsigned done:1; |
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55 unsigned nomem:1; |
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56 unsigned gzheader:1; |
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57 unsigned buffering:1; |
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58 |
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59 size_t zin; |
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60 size_t zout; |
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61 |
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62 uint32_t crc32; |
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63 z_stream zstream; |
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64 ngx_http_request_t *request; |
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65 } ngx_http_gzip_ctx_t; |
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66 |
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67 |
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68 #if (NGX_HAVE_LITTLE_ENDIAN && NGX_HAVE_NONALIGNED) |
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69 |
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70 struct gztrailer { |
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71 uint32_t crc32; |
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72 uint32_t zlen; |
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73 }; |
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74 |
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75 #else /* NGX_HAVE_BIG_ENDIAN || !NGX_HAVE_NONALIGNED */ |
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76 |
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77 struct gztrailer { |
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78 u_char crc32[4]; |
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79 u_char zlen[4]; |
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80 }; |
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81 |
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82 #endif |
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83 |
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84 |
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85 static void ngx_http_gzip_filter_memory(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_copy_recycled(ngx_http_gzip_ctx_t *ctx, |
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88 ngx_chain_t *in); |
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89 static ngx_int_t ngx_http_gzip_filter_deflate_start(ngx_http_request_t *r, |
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90 ngx_http_gzip_ctx_t *ctx); |
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91 static ngx_int_t ngx_http_gzip_filter_gzheader(ngx_http_request_t *r, |
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92 ngx_http_gzip_ctx_t *ctx); |
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93 static ngx_int_t ngx_http_gzip_filter_add_data(ngx_http_request_t *r, |
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94 ngx_http_gzip_ctx_t *ctx); |
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95 static ngx_int_t ngx_http_gzip_filter_get_buf(ngx_http_request_t *r, |
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96 ngx_http_gzip_ctx_t *ctx); |
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97 static ngx_int_t ngx_http_gzip_filter_deflate(ngx_http_request_t *r, |
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98 ngx_http_gzip_ctx_t *ctx); |
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99 static ngx_int_t ngx_http_gzip_filter_deflate_end(ngx_http_request_t *r, |
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100 ngx_http_gzip_ctx_t *ctx); |
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101 |
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102 static void *ngx_http_gzip_filter_alloc(void *opaque, u_int items, |
497 | 103 u_int size); |
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104 static void ngx_http_gzip_filter_free(void *opaque, void *address); |
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105 static void ngx_http_gzip_filter_free_copy_buf(ngx_http_request_t *r, |
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106 ngx_http_gzip_ctx_t *ctx); |
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107 |
573 | 108 static ngx_int_t ngx_http_gzip_add_variables(ngx_conf_t *cf); |
109 static ngx_int_t ngx_http_gzip_ratio_variable(ngx_http_request_t *r, | |
110 ngx_http_variable_value_t *v, uintptr_t data); | |
479 | 111 |
681 | 112 static ngx_int_t ngx_http_gzip_filter_init(ngx_conf_t *cf); |
134
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parents:
133
diff
changeset
|
113 static void *ngx_http_gzip_create_conf(ngx_conf_t *cf); |
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
114 static char *ngx_http_gzip_merge_conf(ngx_conf_t *cf, |
497 | 115 void *parent, void *child); |
527 | 116 static char *ngx_http_gzip_window(ngx_conf_t *cf, void *post, void *data); |
117 static char *ngx_http_gzip_hash(ngx_conf_t *cf, void *post, void *data); | |
158
d377ee423603
nginx-0.0.1-2003-10-24-10:53:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
157
diff
changeset
|
118 |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
119 |
158
d377ee423603
nginx-0.0.1-2003-10-24-10:53:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
157
diff
changeset
|
120 static ngx_conf_num_bounds_t ngx_http_gzip_comp_level_bounds = { |
d377ee423603
nginx-0.0.1-2003-10-24-10:53:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
157
diff
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|
121 ngx_conf_check_num_bounds, 1, 9 |
d377ee423603
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Igor Sysoev <igor@sysoev.ru>
parents:
157
diff
changeset
|
122 }; |
d377ee423603
nginx-0.0.1-2003-10-24-10:53:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
157
diff
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|
123 |
527 | 124 static ngx_conf_post_handler_pt ngx_http_gzip_window_p = ngx_http_gzip_window; |
125 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
|
126 |
134
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
127 |
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
128 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
|
129 |
239
574bea0142be
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Igor Sysoev <igor@sysoev.ru>
parents:
177
diff
changeset
|
130 { ngx_string("gzip"), |
485 | 131 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF |
132 |NGX_CONF_FLAG, | |
239
574bea0142be
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Igor Sysoev <igor@sysoev.ru>
parents:
177
diff
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|
133 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
|
134 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
|
135 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
|
136 NULL }, |
134
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
137 |
239
574bea0142be
nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
177
diff
changeset
|
138 { 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
|
139 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
|
140 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
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|
141 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
|
142 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
|
143 NULL }, |
134
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
144 |
452 | 145 { ngx_string("gzip_types"), |
146 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
|
147 ngx_http_types_slot, |
452 | 148 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
|
149 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
|
150 &ngx_http_html_default_types[0] }, |
452 | 151 |
239
574bea0142be
nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
177
diff
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|
152 { 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
|
153 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
|
154 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
|
155 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
|
156 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
|
157 &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
|
158 |
239
574bea0142be
nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
177
diff
changeset
|
159 { 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
|
160 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
|
161 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
|
162 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
|
163 offsetof(ngx_http_gzip_conf_t, wbits), |
527 | 164 &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
|
165 |
239
574bea0142be
nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
177
diff
changeset
|
166 { 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
|
167 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
|
168 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
|
169 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
|
170 offsetof(ngx_http_gzip_conf_t, memlevel), |
527 | 171 &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
|
172 |
239
574bea0142be
nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
177
diff
changeset
|
173 { 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
|
174 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
|
175 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
|
176 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
|
177 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
|
178 NULL }, |
134
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
179 |
320
d621239c30f7
nginx-0.0.3-2004-04-18-23:06:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
319
diff
changeset
|
180 { 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
|
181 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
|
182 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
|
183 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
|
184 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
|
185 NULL }, |
314
d71c87d11b16
nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents:
294
diff
changeset
|
186 |
239
574bea0142be
nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
177
diff
changeset
|
187 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
|
188 }; |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
189 |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
190 |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
191 static ngx_http_module_t ngx_http_gzip_filter_module_ctx = { |
573 | 192 ngx_http_gzip_add_variables, /* preconfiguration */ |
681 | 193 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
|
194 |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
195 NULL, /* create main configuration */ |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
196 NULL, /* init main configuration */ |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
197 |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
198 NULL, /* create server configuration */ |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
199 NULL, /* merge server configuration */ |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
200 |
134
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
201 ngx_http_gzip_create_conf, /* create location configuration */ |
489 | 202 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
|
203 }; |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
204 |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
205 |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
206 ngx_module_t ngx_http_gzip_filter_module = { |
509 | 207 NGX_MODULE_V1, |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
208 &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
|
209 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
|
210 NGX_HTTP_MODULE, /* module type */ |
541 | 211 NULL, /* init master */ |
681 | 212 NULL, /* init module */ |
541 | 213 NULL, /* init process */ |
214 NULL, /* init thread */ | |
215 NULL, /* exit thread */ | |
216 NULL, /* exit process */ | |
217 NULL, /* exit master */ | |
218 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
|
219 }; |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
220 |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
221 |
573 | 222 static ngx_str_t ngx_http_gzip_ratio = ngx_string("gzip_ratio"); |
509 | 223 |
155
46eb23d9471d
nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
154
diff
changeset
|
224 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
|
225 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
|
226 |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
227 |
497 | 228 static ngx_int_t |
229 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
|
230 { |
2051
115e6f029fcc
"gzip_vary on" always sends "Vary: Accept-Encoding" header
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
231 ngx_table_elt_t *h; |
115e6f029fcc
"gzip_vary on" always sends "Vary: Accept-Encoding" header
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
232 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
|
233 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
|
234 |
135
e29909bd9b8a
nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents:
134
diff
changeset
|
235 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
|
236 |
e29909bd9b8a
nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents:
134
diff
changeset
|
237 if (!conf->enable |
452 | 238 || (r->headers_out.status != NGX_HTTP_OK |
239 && r->headers_out.status != NGX_HTTP_FORBIDDEN | |
240 && 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
|
241 || 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
|
242 || (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
|
243 && 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
|
244 || (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
|
245 && 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
|
246 || 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
|
247 || 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
|
248 { |
155
46eb23d9471d
nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
154
diff
changeset
|
249 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
|
250 } |
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
251 |
501 | 252 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_gzip_ctx_t)); |
253 if (ctx == NULL) { | |
254 return NGX_ERROR; | |
255 } | |
314
d71c87d11b16
nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents:
294
diff
changeset
|
256 |
501 | 257 ngx_http_set_ctx(r, ctx, ngx_http_gzip_filter_module); |
258 | |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
259 ctx->request = r; |
2410
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
260 ctx->buffering = 1; |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
261 |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
262 ngx_http_gzip_filter_memory(r, ctx); |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
263 |
1790
775edc46ee66
ngx_http_gzip_static_module and gzip_disable
Igor Sysoev <igor@sysoev.ru>
parents:
1626
diff
changeset
|
264 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
|
265 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
|
266 return NGX_ERROR; |
84036764e215
nginx-0.0.1-2003-10-29-11:30:44 import
Igor Sysoev <igor@sysoev.ru>
parents:
160
diff
changeset
|
267 } |
135
e29909bd9b8a
nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents:
134
diff
changeset
|
268 |
1790
775edc46ee66
ngx_http_gzip_static_module and gzip_disable
Igor Sysoev <igor@sysoev.ru>
parents:
1626
diff
changeset
|
269 h->hash = 1; |
775edc46ee66
ngx_http_gzip_static_module and gzip_disable
Igor Sysoev <igor@sysoev.ru>
parents:
1626
diff
changeset
|
270 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
|
271 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
|
272 h->value.len = sizeof("gzip") - 1; |
775edc46ee66
ngx_http_gzip_static_module and gzip_disable
Igor Sysoev <igor@sysoev.ru>
parents:
1626
diff
changeset
|
273 h->value.data = (u_char *) "gzip"; |
1583 | 274 |
1790
775edc46ee66
ngx_http_gzip_static_module and gzip_disable
Igor Sysoev <igor@sysoev.ru>
parents:
1626
diff
changeset
|
275 r->headers_out.content_encoding = h; |
775edc46ee66
ngx_http_gzip_static_module and gzip_disable
Igor Sysoev <igor@sysoev.ru>
parents:
1626
diff
changeset
|
276 |
513 | 277 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
|
278 |
577 | 279 ngx_http_clear_content_length(r); |
280 ngx_http_clear_accept_ranges(r); | |
281 | |
155
46eb23d9471d
nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
154
diff
changeset
|
282 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
|
283 } |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
284 |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
285 |
497 | 286 static ngx_int_t |
287 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
|
288 { |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
289 int rc; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
290 ngx_chain_t *cl; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
291 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
|
292 |
243
bf2faf694c19
nginx-0.0.1-2004-01-28-23:38:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
239
diff
changeset
|
293 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
|
294 |
243
bf2faf694c19
nginx-0.0.1-2004-01-28-23:38:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
239
diff
changeset
|
295 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
|
296 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
|
297 } |
4db54fdbcbe7
nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents:
166
diff
changeset
|
298 |
2410
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
299 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
300 "http gzip filter"); |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
301 |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
302 if (ctx->buffering) { |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
303 |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
304 if (in) { |
2468 | 305 switch (ngx_http_gzip_filter_copy_recycled(ctx, in)) { |
2410
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
306 |
2468 | 307 case NGX_OK: |
308 return NGX_OK; | |
2410
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
309 |
2468 | 310 case NGX_DONE: |
311 in = NULL; | |
312 break; | |
2410
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
313 |
2468 | 314 default: /* NGX_ERROR */ |
315 goto failed; | |
316 } | |
2410
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
317 |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
318 } else { |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
319 ctx->buffering = 0; |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
320 } |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
321 } |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
322 |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
323 if (ctx->preallocated == NULL) { |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
324 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
|
325 goto failed; |
430
1fa5daf7558e
nginx-0.0.11-2004-09-19-22:27:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
416
diff
changeset
|
326 } |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
327 } |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
328 |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
329 if (in) { |
134
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
330 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
|
331 goto failed; |
134
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
332 } |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
333 } |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
334 |
2287
baa61933d5ed
use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents:
2166
diff
changeset
|
335 if (ctx->nomem) { |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
336 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
337 /* flush busy buffers */ |
2287
baa61933d5ed
use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents:
2166
diff
changeset
|
338 |
baa61933d5ed
use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents:
2166
diff
changeset
|
339 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
|
340 goto failed; |
2287
baa61933d5ed
use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents:
2166
diff
changeset
|
341 } |
baa61933d5ed
use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents:
2166
diff
changeset
|
342 |
baa61933d5ed
use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents:
2166
diff
changeset
|
343 cl = NULL; |
baa61933d5ed
use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents:
2166
diff
changeset
|
344 |
baa61933d5ed
use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents:
2166
diff
changeset
|
345 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
|
346 (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
|
347 ctx->nomem = 0; |
baa61933d5ed
use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents:
2166
diff
changeset
|
348 } |
141
656d468f4ead
nginx-0.0.1-2003-10-08-19:32:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
136
diff
changeset
|
349 |
135
e29909bd9b8a
nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents:
134
diff
changeset
|
350 for ( ;; ) { |
e29909bd9b8a
nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents:
134
diff
changeset
|
351 |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
352 /* cycle while we can write to a client */ |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
353 |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
354 for ( ;; ) { |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
355 |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
356 /* 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
|
357 |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
358 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
|
359 |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
360 if (rc == NGX_DECLINED) { |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
361 break; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
362 } |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
363 |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
364 if (rc == NGX_AGAIN) { |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
365 continue; |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
366 } |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
367 |
430
1fa5daf7558e
nginx-0.0.11-2004-09-19-22:27:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
416
diff
changeset
|
368 |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
369 /* ... 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
|
370 |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
371 rc = ngx_http_gzip_filter_get_buf(r, ctx); |
501 | 372 |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
373 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
|
374 break; |
ba876b26b76d
nginx-0.0.3-2004-04-21-22:54:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
322
diff
changeset
|
375 } |
ba876b26b76d
nginx-0.0.3-2004-04-21-22:54:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
322
diff
changeset
|
376 |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
377 if (rc == NGX_ERROR) { |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
378 goto failed; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
379 } |
134
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
380 |
479 | 381 |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
382 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
|
383 |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
384 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
|
385 break; |
ba876b26b76d
nginx-0.0.3-2004-04-21-22:54:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
322
diff
changeset
|
386 } |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
387 |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
388 if (rc == NGX_ERROR) { |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
389 goto failed; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
390 } |
501 | 391 |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
392 /* rc == NGX_AGAIN */ |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
393 } |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
394 |
1626 | 395 if (ctx->out == NULL) { |
2410
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
396 ngx_http_gzip_filter_free_copy_buf(r, ctx); |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
397 |
2292 | 398 return ctx->busy ? NGX_AGAIN : NGX_OK; |
430
1fa5daf7558e
nginx-0.0.11-2004-09-19-22:27:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
416
diff
changeset
|
399 } |
1fa5daf7558e
nginx-0.0.11-2004-09-19-22:27:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
416
diff
changeset
|
400 |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
401 if (!ctx->gzheader) { |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
402 if (ngx_http_gzip_filter_gzheader(r, ctx) != NGX_OK) { |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
403 goto failed; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
404 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
405 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
406 |
2287
baa61933d5ed
use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents:
2166
diff
changeset
|
407 rc = ngx_http_next_body_filter(r, ctx->out); |
141
656d468f4ead
nginx-0.0.1-2003-10-08-19:32:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
136
diff
changeset
|
408 |
2287
baa61933d5ed
use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents:
2166
diff
changeset
|
409 if (rc == NGX_ERROR) { |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
410 goto failed; |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
411 } |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
412 |
2410
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
413 ngx_http_gzip_filter_free_copy_buf(r, ctx); |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
414 |
154
eac26585476e
nginx-0.0.1-2003-10-22-11:05:29 import
Igor Sysoev <igor@sysoev.ru>
parents:
153
diff
changeset
|
415 ngx_chain_update_chains(&ctx->free, &ctx->busy, &ctx->out, |
501 | 416 (ngx_buf_tag_t) &ngx_http_gzip_filter_module); |
134
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
417 ctx->last_out = &ctx->out; |
327
e0f3f238db09
nginx-0.0.3-2004-04-26-17:40:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
326
diff
changeset
|
418 |
2287
baa61933d5ed
use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents:
2166
diff
changeset
|
419 ctx->nomem = 0; |
baa61933d5ed
use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents:
2166
diff
changeset
|
420 |
327
e0f3f238db09
nginx-0.0.3-2004-04-26-17:40:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
326
diff
changeset
|
421 if (ctx->done) { |
2287
baa61933d5ed
use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents:
2166
diff
changeset
|
422 return rc; |
327
e0f3f238db09
nginx-0.0.3-2004-04-26-17:40:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
326
diff
changeset
|
423 } |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
424 } |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
425 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
426 /* unreachable */ |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
427 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
428 failed: |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
429 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
430 ctx->done = 1; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
431 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
432 if (ctx->preallocated) { |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
433 deflateEnd(&ctx->zstream); |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
434 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
435 ngx_pfree(r->pool, ctx->preallocated); |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
436 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
437 |
2410
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
438 ngx_http_gzip_filter_free_copy_buf(r, ctx); |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
439 |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
440 return NGX_ERROR; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
441 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
442 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
443 |
2410
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
444 static void |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
445 ngx_http_gzip_filter_memory(ngx_http_request_t *r, ngx_http_gzip_ctx_t *ctx) |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
446 { |
2410
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
447 int wbits, memlevel; |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
448 ngx_http_gzip_conf_t *conf; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
449 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
450 conf = ngx_http_get_module_loc_conf(r, ngx_http_gzip_filter_module); |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
451 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
452 wbits = conf->wbits; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
453 memlevel = conf->memlevel; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
454 |
2410
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
455 if (r->headers_out.content_length_n > 0) { |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
456 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
457 /* the actual zlib window size is smaller by 262 bytes */ |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
458 |
2410
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
459 while (r->headers_out.content_length_n < ((1 << (wbits - 1)) - 262)) { |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
460 wbits--; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
461 memlevel--; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
462 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
463 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
464 |
2410
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
465 ctx->wbits = wbits; |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
466 ctx->memlevel = memlevel; |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
467 |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
468 /* |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
469 * We preallocate a memory for zlib in one buffer (200K-400K), this |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
470 * decreases a number of malloc() and free() calls and also probably |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
471 * decreases a number of syscalls (sbrk()/mmap() and so on). |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
472 * Besides we free the memory as soon as a gzipping will complete |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
473 * and do not wait while a whole response will be sent to a client. |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
474 * |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
475 * 8K is for zlib deflate_state, it takes |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
476 * *) 5816 bytes on i386 and sparc64 (32-bit mode) |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
477 * *) 5920 bytes on amd64 and sparc64 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
478 */ |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
479 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
480 ctx->allocated = 8192 + (1 << (wbits + 2)) + (1 << (memlevel + 9)); |
2410
bbfaeb220e90
postpone zlib memory allocation
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481 } |
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482 |
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483 |
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484 static ngx_int_t |
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485 ngx_http_gzip_filter_copy_recycled(ngx_http_gzip_ctx_t *ctx, ngx_chain_t *in) |
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486 { |
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487 size_t size, buffered; |
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488 ngx_buf_t *b, *buf; |
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489 ngx_chain_t *cl, **ll; |
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490 ngx_http_request_t *r; |
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491 |
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492 r = ctx->request; |
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493 |
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494 r->connection->buffered |= NGX_HTTP_GZIP_BUFFERED; |
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495 |
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496 buffered = 0; |
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497 ll = &ctx->in; |
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498 |
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499 for (cl = ctx->in; cl; cl = cl->next) { |
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500 buffered += cl->buf->last - cl->buf->pos; |
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501 ll = &cl->next; |
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502 } |
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503 |
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504 while (in) { |
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505 cl = ngx_alloc_chain_link(r->pool); |
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506 if (cl == NULL) { |
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507 return NGX_ERROR; |
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508 } |
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509 |
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510 b = in->buf; |
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511 |
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512 size = b->last - b->pos; |
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513 buffered += size; |
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514 |
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515 if (b->flush || b->last_buf) { |
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516 ctx->buffering = 0; |
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517 |
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518 } else if (buffered > ctx->allocated / 2) { |
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519 |
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520 /* |
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521 * With default memory settings zlib starts to output gzipped data |
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522 * only after it has got about 90K, so it makes sense to allocate |
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523 * zlib memory (200-400K) only after we have enough data |
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524 * to compress. Although we copy recycled buffers, nevertheless |
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525 * for responses up to 120K this allows to allocate zlib memory, |
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526 * to compress and to output the response in one step |
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527 * using hot CPU cache. |
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528 */ |
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529 |
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530 ctx->buffering = 0; |
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531 } |
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532 |
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533 if (ctx->buffering && size && b->recycled) { |
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534 |
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535 buf = ngx_create_temp_buf(r->pool, size); |
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536 if (buf == NULL) { |
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537 return NGX_ERROR; |
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538 } |
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539 |
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540 buf->last = ngx_cpymem(buf->pos, b->pos, size); |
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541 b->pos = b->last; |
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542 |
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543 buf->last_buf = b->last_buf; |
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544 buf->tag = (ngx_buf_tag_t) &ngx_http_gzip_filter_module; |
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545 |
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546 cl->buf = buf; |
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547 |
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548 } else { |
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549 cl->buf = b; |
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550 } |
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551 |
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552 *ll = cl; |
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553 ll = &cl->next; |
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554 in = in->next; |
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555 } |
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556 |
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557 *ll = NULL; |
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558 |
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559 return ctx->buffering ? NGX_OK : NGX_DONE; |
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560 } |
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561 |
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562 |
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563 static ngx_int_t |
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564 ngx_http_gzip_filter_deflate_start(ngx_http_request_t *r, |
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565 ngx_http_gzip_ctx_t *ctx) |
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566 { |
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567 int rc; |
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568 ngx_http_gzip_conf_t *conf; |
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569 |
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570 conf = ngx_http_get_module_loc_conf(r, ngx_http_gzip_filter_module); |
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571 |
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572 ctx->preallocated = ngx_palloc(r->pool, ctx->allocated); |
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573 if (ctx->preallocated == NULL) { |
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574 return NGX_ERROR; |
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575 } |
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576 |
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577 ctx->free_mem = ctx->preallocated; |
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578 |
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579 ctx->zstream.zalloc = ngx_http_gzip_filter_alloc; |
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580 ctx->zstream.zfree = ngx_http_gzip_filter_free; |
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581 ctx->zstream.opaque = ctx; |
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582 |
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583 rc = deflateInit2(&ctx->zstream, (int) conf->level, Z_DEFLATED, |
2410
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584 - ctx->wbits, ctx->memlevel, Z_DEFAULT_STRATEGY); |
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585 |
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586 if (rc != Z_OK) { |
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587 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0, |
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588 "deflateInit2() failed: %d", rc); |
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589 return NGX_ERROR; |
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590 } |
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591 |
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592 ctx->last_out = &ctx->out; |
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593 ctx->crc32 = crc32(0L, Z_NULL, 0); |
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594 ctx->flush = Z_NO_FLUSH; |
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595 |
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596 return NGX_OK; |
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597 } |
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598 |
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599 |
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600 static ngx_int_t |
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601 ngx_http_gzip_filter_gzheader(ngx_http_request_t *r, ngx_http_gzip_ctx_t *ctx) |
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602 { |
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603 ngx_buf_t *b; |
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604 ngx_chain_t *cl; |
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605 static u_char gzheader[10] = |
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606 { 0x1f, 0x8b, Z_DEFLATED, 0, 0, 0, 0, 0, 0, 3 }; |
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607 |
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608 b = ngx_pcalloc(r->pool, sizeof(ngx_buf_t)); |
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609 if (b == NULL) { |
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610 return NGX_ERROR; |
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611 } |
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612 |
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613 b->memory = 1; |
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614 b->pos = gzheader; |
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615 b->last = b->pos + 10; |
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616 |
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617 cl = ngx_alloc_chain_link(r->pool); |
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618 if (cl == NULL) { |
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619 return NGX_ERROR; |
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620 } |
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621 |
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622 cl->buf = b; |
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623 cl->next = ctx->out; |
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624 ctx->out = cl; |
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625 |
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626 ctx->gzheader = 1; |
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627 |
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628 return NGX_OK; |
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629 } |
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630 |
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631 |
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632 static ngx_int_t |
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633 ngx_http_gzip_filter_add_data(ngx_http_request_t *r, ngx_http_gzip_ctx_t *ctx) |
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634 { |
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635 if (ctx->zstream.avail_in || ctx->flush != Z_NO_FLUSH || ctx->redo) { |
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636 return NGX_OK; |
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637 } |
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638 |
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639 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
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640 "gzip in: %p", ctx->in); |
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641 |
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642 if (ctx->in == NULL) { |
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643 return NGX_DECLINED; |
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644 } |
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645 |
2410
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646 if (ctx->copy_buf) { |
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647 |
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648 /* |
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649 * to avoid CPU cache trashing we do not free() just quit buf, |
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650 * but postpone free()ing after zlib compressing and data output |
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651 */ |
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652 |
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653 ctx->copy_buf->next = ctx->copied; |
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654 ctx->copied = ctx->copy_buf; |
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655 ctx->copy_buf = NULL; |
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656 } |
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657 |
2291
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658 ctx->in_buf = ctx->in->buf; |
2410
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659 |
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660 if (ctx->in_buf->tag == (ngx_buf_tag_t) &ngx_http_gzip_filter_module) { |
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661 ctx->copy_buf = ctx->in; |
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662 } |
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663 |
2291
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664 ctx->in = ctx->in->next; |
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665 |
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666 ctx->zstream.next_in = ctx->in_buf->pos; |
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667 ctx->zstream.avail_in = ctx->in_buf->last - ctx->in_buf->pos; |
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668 |
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669 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
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670 "gzip in_buf:%p ni:%p ai:%ud", |
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671 ctx->in_buf, |
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672 ctx->zstream.next_in, ctx->zstream.avail_in); |
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673 |
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674 if (ctx->in_buf->last_buf) { |
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675 ctx->flush = Z_FINISH; |
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676 |
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677 } else if (ctx->in_buf->flush) { |
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678 ctx->flush = Z_SYNC_FLUSH; |
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679 } |
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680 |
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681 if (ctx->zstream.avail_in) { |
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682 |
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683 ctx->crc32 = crc32(ctx->crc32, ctx->zstream.next_in, |
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684 ctx->zstream.avail_in); |
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685 |
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686 } else if (ctx->flush == Z_NO_FLUSH) { |
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687 return NGX_AGAIN; |
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688 } |
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689 |
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690 return NGX_OK; |
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|
691 } |
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|
692 |
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|
693 |
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694 static ngx_int_t |
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695 ngx_http_gzip_filter_get_buf(ngx_http_request_t *r, ngx_http_gzip_ctx_t *ctx) |
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696 { |
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697 ngx_http_gzip_conf_t *conf; |
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698 |
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699 if (ctx->zstream.avail_out) { |
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700 return NGX_OK; |
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|
701 } |
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|
702 |
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703 conf = ngx_http_get_module_loc_conf(r, ngx_http_gzip_filter_module); |
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704 |
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|
705 if (ctx->free) { |
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706 ctx->out_buf = ctx->free->buf; |
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707 ctx->free = ctx->free->next; |
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708 |
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709 } else if (ctx->bufs < conf->bufs.num) { |
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710 |
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|
711 ctx->out_buf = ngx_create_temp_buf(r->pool, conf->bufs.size); |
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712 if (ctx->out_buf == NULL) { |
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713 return NGX_ERROR; |
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714 } |
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|
715 |
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|
716 ctx->out_buf->tag = (ngx_buf_tag_t) &ngx_http_gzip_filter_module; |
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*) split ngx_http_gzip_body_filter()
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|
717 ctx->out_buf->recycled = 1; |
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|
718 ctx->bufs++; |
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719 |
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*) split ngx_http_gzip_body_filter()
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720 } else { |
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*) split ngx_http_gzip_body_filter()
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|
721 ctx->nomem = 1; |
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722 return NGX_DECLINED; |
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*) split ngx_http_gzip_body_filter()
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|
723 } |
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*) split ngx_http_gzip_body_filter()
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|
724 |
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*) split ngx_http_gzip_body_filter()
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|
725 ctx->zstream.next_out = ctx->out_buf->pos; |
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*) split ngx_http_gzip_body_filter()
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|
726 ctx->zstream.avail_out = conf->bufs.size; |
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727 |
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*) split ngx_http_gzip_body_filter()
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728 return NGX_OK; |
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*) split ngx_http_gzip_body_filter()
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|
729 } |
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*) split ngx_http_gzip_body_filter()
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|
730 |
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*) split ngx_http_gzip_body_filter()
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|
731 |
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*) split ngx_http_gzip_body_filter()
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|
732 static ngx_int_t |
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|
733 ngx_http_gzip_filter_deflate(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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|
734 { |
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*) split ngx_http_gzip_body_filter()
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|
735 int rc; |
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*) split ngx_http_gzip_body_filter()
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|
736 ngx_chain_t *cl; |
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*) split ngx_http_gzip_body_filter()
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|
737 ngx_http_gzip_conf_t *conf; |
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*) split ngx_http_gzip_body_filter()
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|
738 |
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*) split ngx_http_gzip_body_filter()
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|
739 ngx_log_debug6(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
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*) split ngx_http_gzip_body_filter()
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|
740 "deflate in: ni:%p no:%p ai:%ud ao:%ud fl:%d redo:%d", |
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*) split ngx_http_gzip_body_filter()
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|
741 ctx->zstream.next_in, ctx->zstream.next_out, |
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*) split ngx_http_gzip_body_filter()
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|
742 ctx->zstream.avail_in, ctx->zstream.avail_out, |
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*) split ngx_http_gzip_body_filter()
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|
743 ctx->flush, ctx->redo); |
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*) split ngx_http_gzip_body_filter()
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|
744 |
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*) split ngx_http_gzip_body_filter()
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|
745 rc = deflate(&ctx->zstream, ctx->flush); |
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*) split ngx_http_gzip_body_filter()
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|
746 |
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*) split ngx_http_gzip_body_filter()
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|
747 if (rc != Z_OK && rc != Z_STREAM_END) { |
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*) split ngx_http_gzip_body_filter()
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|
748 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0, |
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*) split ngx_http_gzip_body_filter()
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|
749 "deflate() failed: %d, %d", ctx->flush, rc); |
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*) split ngx_http_gzip_body_filter()
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|
750 return NGX_ERROR; |
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*) split ngx_http_gzip_body_filter()
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|
751 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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|
752 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
753 ngx_log_debug5(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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parents:
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|
754 "deflate out: ni:%p no:%p ai:%ud ao:%ud rc:%d", |
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*) split ngx_http_gzip_body_filter()
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|
755 ctx->zstream.next_in, ctx->zstream.next_out, |
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*) split ngx_http_gzip_body_filter()
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parents:
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changeset
|
756 ctx->zstream.avail_in, ctx->zstream.avail_out, |
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*) split ngx_http_gzip_body_filter()
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|
757 rc); |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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|
758 |
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*) split ngx_http_gzip_body_filter()
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changeset
|
759 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
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*) split ngx_http_gzip_body_filter()
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changeset
|
760 "gzip in_buf:%p pos:%p", |
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*) split ngx_http_gzip_body_filter()
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changeset
|
761 ctx->in_buf, ctx->in_buf->pos); |
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*) split ngx_http_gzip_body_filter()
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|
762 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
763 if (ctx->zstream.next_in) { |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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parents:
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changeset
|
764 ctx->in_buf->pos = ctx->zstream.next_in; |
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*) split ngx_http_gzip_body_filter()
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|
765 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
766 if (ctx->zstream.avail_in == 0) { |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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|
767 ctx->zstream.next_in = NULL; |
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*) split ngx_http_gzip_body_filter()
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|
768 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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|
769 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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changeset
|
770 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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parents:
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changeset
|
771 ctx->out_buf->last = ctx->zstream.next_out; |
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*) split ngx_http_gzip_body_filter()
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changeset
|
772 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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diff
changeset
|
773 if (ctx->zstream.avail_out == 0) { |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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changeset
|
774 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
775 /* zlib wants to output some more gzipped data */ |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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|
776 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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|
777 cl = ngx_alloc_chain_link(r->pool); |
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*) split ngx_http_gzip_body_filter()
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changeset
|
778 if (cl == NULL) { |
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*) split ngx_http_gzip_body_filter()
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|
779 return NGX_ERROR; |
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*) split ngx_http_gzip_body_filter()
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changeset
|
780 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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changeset
|
781 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
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|
782 cl->buf = ctx->out_buf; |
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*) split ngx_http_gzip_body_filter()
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|
783 cl->next = NULL; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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|
784 *ctx->last_out = cl; |
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*) split ngx_http_gzip_body_filter()
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|
785 ctx->last_out = &cl->next; |
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*) split ngx_http_gzip_body_filter()
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|
786 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
787 ctx->redo = 1; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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|
788 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
789 return NGX_AGAIN; |
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*) split ngx_http_gzip_body_filter()
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changeset
|
790 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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changeset
|
791 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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changeset
|
792 ctx->redo = 0; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
793 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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changeset
|
794 if (ctx->flush == Z_SYNC_FLUSH) { |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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changeset
|
795 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
796 ctx->zstream.avail_out = 0; |
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*) split ngx_http_gzip_body_filter()
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|
797 ctx->out_buf->flush = 1; |
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*) split ngx_http_gzip_body_filter()
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|
798 ctx->flush = Z_NO_FLUSH; |
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*) split ngx_http_gzip_body_filter()
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changeset
|
799 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
800 cl = ngx_alloc_chain_link(r->pool); |
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*) split ngx_http_gzip_body_filter()
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changeset
|
801 if (cl == NULL) { |
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*) split ngx_http_gzip_body_filter()
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|
802 return NGX_ERROR; |
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*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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changeset
|
803 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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changeset
|
804 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
805 cl->buf = ctx->out_buf; |
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*) split ngx_http_gzip_body_filter()
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|
806 cl->next = NULL; |
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*) split ngx_http_gzip_body_filter()
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changeset
|
807 *ctx->last_out = cl; |
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*) split ngx_http_gzip_body_filter()
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|
808 ctx->last_out = &cl->next; |
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*) split ngx_http_gzip_body_filter()
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|
809 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
810 return NGX_OK; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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changeset
|
811 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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changeset
|
812 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
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changeset
|
813 if (rc == Z_STREAM_END) { |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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changeset
|
814 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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changeset
|
815 if (ngx_http_gzip_filter_deflate_end(r, ctx) != NGX_OK) { |
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*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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changeset
|
816 return NGX_ERROR; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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changeset
|
817 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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diff
changeset
|
818 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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diff
changeset
|
819 return NGX_OK; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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diff
changeset
|
820 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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changeset
|
821 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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changeset
|
822 conf = ngx_http_get_module_loc_conf(r, ngx_http_gzip_filter_module); |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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changeset
|
823 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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changeset
|
824 if (conf->no_buffer && ctx->in == NULL) { |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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changeset
|
825 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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|
826 cl = ngx_alloc_chain_link(r->pool); |
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|
827 if (cl == NULL) { |
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828 return NGX_ERROR; |
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|
829 } |
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|
830 |
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|
831 cl->buf = ctx->out_buf; |
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|
832 cl->next = NULL; |
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|
833 *ctx->last_out = cl; |
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|
834 ctx->last_out = &cl->next; |
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|
835 |
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|
836 return NGX_OK; |
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|
837 } |
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|
838 |
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|
839 return NGX_AGAIN; |
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840 } |
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|
841 |
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842 |
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843 static ngx_int_t |
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844 ngx_http_gzip_filter_deflate_end(ngx_http_request_t *r, |
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845 ngx_http_gzip_ctx_t *ctx) |
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846 { |
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847 int rc; |
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848 ngx_buf_t *b; |
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849 ngx_chain_t *cl; |
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850 struct gztrailer *trailer; |
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851 |
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|
852 ctx->zin = ctx->zstream.total_in; |
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853 ctx->zout = 10 + ctx->zstream.total_out + 8; |
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Igor Sysoev <igor@sysoev.ru>
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|
854 |
e9a1cddf2aaa
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|
855 rc = deflateEnd(&ctx->zstream); |
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*) split ngx_http_gzip_body_filter()
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856 |
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|
857 if (rc != Z_OK) { |
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858 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0, |
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|
859 "deflateEnd() failed: %d", rc); |
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860 return NGX_ERROR; |
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861 } |
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|
862 |
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|
863 ngx_pfree(r->pool, ctx->preallocated); |
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864 |
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|
865 cl = ngx_alloc_chain_link(r->pool); |
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*) split ngx_http_gzip_body_filter()
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866 if (cl == NULL) { |
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changeset
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867 return NGX_ERROR; |
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|
868 } |
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|
869 |
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870 cl->buf = ctx->out_buf; |
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871 cl->next = NULL; |
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|
872 *ctx->last_out = cl; |
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|
873 ctx->last_out = &cl->next; |
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874 |
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875 if (ctx->zstream.avail_out >= 8) { |
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|
876 trailer = (struct gztrailer *) ctx->out_buf->last; |
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|
877 ctx->out_buf->last += 8; |
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878 ctx->out_buf->last_buf = 1; |
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879 |
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880 } else { |
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*) split ngx_http_gzip_body_filter()
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|
881 b = ngx_create_temp_buf(r->pool, 8); |
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882 if (b == NULL) { |
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*) split ngx_http_gzip_body_filter()
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883 return NGX_ERROR; |
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changeset
|
884 } |
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*) split ngx_http_gzip_body_filter()
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|
885 |
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|
886 b->last_buf = 1; |
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|
887 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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|
888 cl = ngx_alloc_chain_link(r->pool); |
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*) split ngx_http_gzip_body_filter()
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|
889 if (cl == NULL) { |
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*) split ngx_http_gzip_body_filter()
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|
890 return NGX_ERROR; |
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*) split ngx_http_gzip_body_filter()
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|
891 } |
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*) split ngx_http_gzip_body_filter()
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|
892 |
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*) split ngx_http_gzip_body_filter()
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|
893 cl->buf = b; |
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*) split ngx_http_gzip_body_filter()
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|
894 cl->next = NULL; |
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*) split ngx_http_gzip_body_filter()
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|
895 *ctx->last_out = cl; |
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*) split ngx_http_gzip_body_filter()
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896 ctx->last_out = &cl->next; |
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|
897 trailer = (struct gztrailer *) b->pos; |
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*) split ngx_http_gzip_body_filter()
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|
898 b->last += 8; |
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*) split ngx_http_gzip_body_filter()
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|
899 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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|
900 |
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|
901 #if (NGX_HAVE_LITTLE_ENDIAN && NGX_HAVE_NONALIGNED) |
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|
902 |
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|
903 trailer->crc32 = ctx->crc32; |
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*) split ngx_http_gzip_body_filter()
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|
904 trailer->zlen = ctx->zin; |
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*) split ngx_http_gzip_body_filter()
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|
905 |
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|
906 #else |
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|
907 |
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*) split ngx_http_gzip_body_filter()
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|
908 trailer->crc32[0] = (u_char) (ctx->crc32 & 0xff); |
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|
909 trailer->crc32[1] = (u_char) ((ctx->crc32 >> 8) & 0xff); |
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|
910 trailer->crc32[2] = (u_char) ((ctx->crc32 >> 16) & 0xff); |
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*) split ngx_http_gzip_body_filter()
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|
911 trailer->crc32[3] = (u_char) ((ctx->crc32 >> 24) & 0xff); |
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*) split ngx_http_gzip_body_filter()
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|
912 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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|
913 trailer->zlen[0] = (u_char) (ctx->zin & 0xff); |
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*) split ngx_http_gzip_body_filter()
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changeset
|
914 trailer->zlen[1] = (u_char) ((ctx->zin >> 8) & 0xff); |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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|
915 trailer->zlen[2] = (u_char) ((ctx->zin >> 16) & 0xff); |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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|
916 trailer->zlen[3] = (u_char) ((ctx->zin >> 24) & 0xff); |
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|
917 |
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|
918 #endif |
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|
919 |
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|
920 ctx->zstream.avail_in = 0; |
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|
921 ctx->zstream.avail_out = 0; |
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|
922 |
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|
923 ctx->done = 1; |
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|
924 |
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|
925 r->connection->buffered &= ~NGX_HTTP_GZIP_BUFFERED; |
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|
926 |
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|
927 return NGX_OK; |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
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parents:
diff
changeset
|
928 } |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
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parents:
diff
changeset
|
929 |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
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parents:
diff
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|
930 |
497 | 931 static void * |
932 ngx_http_gzip_filter_alloc(void *opaque, u_int items, u_int size) | |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
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155
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|
933 { |
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nginx-0.0.1-2003-10-23-10:13:16 import
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|
934 ngx_http_gzip_ctx_t *ctx = opaque; |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
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|
935 |
294
5cfd65b8b0a7
nginx-0.0.3-2004-03-23-09:01:52 import
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292
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|
936 void *p; |
5cfd65b8b0a7
nginx-0.0.3-2004-03-23-09:01:52 import
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changeset
|
937 ngx_uint_t alloc; |
156
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diff
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|
938 |
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diff
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|
939 alloc = items * size; |
461 | 940 |
2425
3d60d55b9ad0
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parents:
2412
diff
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|
941 if (alloc % 512 != 0 && alloc < 8192) { |
156
afc333135a6b
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diff
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|
942 |
346
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parents:
344
diff
changeset
|
943 /* |
461 | 944 * The zlib deflate_state allocation, it takes about 6K, |
945 * we allocate 8K. Other allocations are divisible by 512. | |
346
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parents:
344
diff
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|
946 */ |
156
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parents:
155
diff
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|
947 |
2425
3d60d55b9ad0
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parents:
2412
diff
changeset
|
948 alloc = 8192; |
156
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parents:
155
diff
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|
949 } |
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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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|
950 |
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parents:
155
diff
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|
951 if (alloc <= ctx->allocated) { |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
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parents:
155
diff
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|
952 p = ctx->free_mem; |
afc333135a6b
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parents:
155
diff
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|
953 ctx->free_mem += alloc; |
afc333135a6b
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parents:
155
diff
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|
954 ctx->allocated -= alloc; |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
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parents:
155
diff
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|
955 |
257
70e1c7d2b83d
nginx-0.0.2-2004-02-11-20:08:49 import
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parents:
243
diff
changeset
|
956 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, ctx->request->connection->log, 0, |
461 | 957 "gzip alloc: n:%ud s:%ud a:%ud p:%p", |
257
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parents:
243
diff
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|
958 items, size, alloc, p); |
156
afc333135a6b
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parents:
155
diff
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|
959 |
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parents:
155
diff
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|
960 return p; |
afc333135a6b
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parents:
155
diff
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|
961 } |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
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parents:
155
diff
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|
962 |
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parents:
155
diff
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963 ngx_log_error(NGX_LOG_ALERT, ctx->request->connection->log, 0, |
461 | 964 "gzip filter failed to use preallocated memory: %ud of %ud", |
156
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parents:
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diff
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|
965 items * size, ctx->allocated); |
afc333135a6b
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parents:
155
diff
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966 |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
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parents:
155
diff
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|
967 p = ngx_palloc(ctx->request->pool, items * size); |
afc333135a6b
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parents:
155
diff
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|
968 |
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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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|
969 return p; |
afc333135a6b
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parents:
155
diff
changeset
|
970 } |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
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parents:
155
diff
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|
971 |
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parents:
155
diff
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|
972 |
497 | 973 static void |
974 ngx_http_gzip_filter_free(void *opaque, void *address) | |
156
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parents:
155
diff
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|
975 { |
282
30310107dbc9
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parents:
265
diff
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|
976 #if 0 |
156
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parents:
155
diff
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|
977 ngx_http_gzip_ctx_t *ctx = opaque; |
afc333135a6b
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parents:
155
diff
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|
978 |
257
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parents:
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diff
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|
979 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ctx->request->connection->log, 0, |
461 | 980 "gzip free: %p", address); |
156
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parents:
155
diff
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|
981 #endif |
afc333135a6b
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parents:
155
diff
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|
982 } |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
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parents:
155
diff
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|
983 |
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parents:
155
diff
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|
984 |
2410
bbfaeb220e90
postpone zlib memory allocation
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parents:
2292
diff
changeset
|
985 static void |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
986 ngx_http_gzip_filter_free_copy_buf(ngx_http_request_t *r, |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
987 ngx_http_gzip_ctx_t *ctx) |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
988 { |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
989 ngx_chain_t *cl; |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
990 |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
991 for (cl = ctx->copied; cl; cl = cl->next) { |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
992 ngx_pfree(r->pool, cl->buf->start); |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
993 } |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
994 |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
995 ctx->copied = NULL; |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
996 } |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
997 |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
998 |
497 | 999 static ngx_int_t |
573 | 1000 ngx_http_gzip_add_variables(ngx_conf_t *cf) |
177
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166
diff
changeset
|
1001 { |
880 | 1002 ngx_http_variable_t *var; |
177
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166
diff
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|
1003 |
583 | 1004 var = ngx_http_add_variable(cf, &ngx_http_gzip_ratio, NGX_HTTP_VAR_NOHASH); |
573 | 1005 if (var == NULL) { |
1006 return NGX_ERROR; | |
1007 } | |
1008 | |
637 | 1009 var->get_handler = ngx_http_gzip_ratio_variable; |
573 | 1010 |
177
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parents:
166
diff
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|
1011 return NGX_OK; |
4db54fdbcbe7
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parents:
166
diff
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|
1012 } |
4db54fdbcbe7
nginx-0.0.1-2003-11-10-20:17:31 import
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parents:
166
diff
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|
1013 |
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166
diff
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|
1014 |
497 | 1015 static ngx_int_t |
573 | 1016 ngx_http_gzip_ratio_variable(ngx_http_request_t *r, |
1017 ngx_http_variable_value_t *v, uintptr_t data) | |
1018 { | |
1019 ngx_uint_t zint, zfrac; | |
1020 ngx_http_gzip_ctx_t *ctx; | |
1021 | |
577 | 1022 v->valid = 1; |
1565 | 1023 v->no_cacheable = 0; |
573 | 1024 v->not_found = 0; |
1025 | |
1026 ctx = ngx_http_get_module_ctx(r, ngx_http_gzip_filter_module); | |
1027 | |
1028 if (ctx == NULL || ctx->zout == 0) { | |
1029 v->not_found = 1; | |
1030 return NGX_OK; | |
1031 } | |
1032 | |
2049 | 1033 v->data = ngx_pnalloc(r->pool, NGX_INT32_LEN + 3); |
573 | 1034 if (v->data == NULL) { |
1035 return NGX_ERROR; | |
1036 } | |
1037 | |
1038 zint = (ngx_uint_t) (ctx->zin / ctx->zout); | |
1039 zfrac = (ngx_uint_t) ((ctx->zin * 100 / ctx->zout) % 100); | |
1040 | |
1041 if ((ctx->zin * 1000 / ctx->zout) % 10 > 4) { | |
1042 | |
1043 /* the rounding, e.g., 2.125 to 2.13 */ | |
1044 | |
1045 zfrac++; | |
1046 | |
1047 if (zfrac > 99) { | |
1048 zint++; | |
1049 zfrac = 0; | |
1050 } | |
1051 } | |
1052 | |
1053 v->len = ngx_sprintf(v->data, "%ui.%02ui", zint, zfrac) - v->data; | |
1054 | |
1055 return NGX_OK; | |
1056 } | |
1057 | |
1058 | |
497 | 1059 static void * |
1060 ngx_http_gzip_create_conf(ngx_conf_t *cf) | |
134
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diff
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|
1061 { |
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diff
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|
1062 ngx_http_gzip_conf_t *conf; |
d57c6835225c
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diff
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|
1063 |
501 | 1064 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_gzip_conf_t)); |
1065 if (conf == NULL) { | |
430
1fa5daf7558e
nginx-0.0.11-2004-09-19-22:27:00 import
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parents:
416
diff
changeset
|
1066 return NGX_CONF_ERROR; |
1fa5daf7558e
nginx-0.0.11-2004-09-19-22:27:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
416
diff
changeset
|
1067 } |
134
d57c6835225c
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133
diff
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|
1068 |
430
1fa5daf7558e
nginx-0.0.11-2004-09-19-22:27:00 import
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parents:
416
diff
changeset
|
1069 /* |
479 | 1070 * set by ngx_pcalloc(): |
1071 * | |
1072 * 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
|
1073 * conf->types = { NULL }; |
723df5089c05
use hash in gzip_types, ssi_types, and sub_filter_types
Igor Sysoev <igor@sysoev.ru>
parents:
2051
diff
changeset
|
1074 * conf->types_keys = NULL; |
430
1fa5daf7558e
nginx-0.0.11-2004-09-19-22:27:00 import
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parents:
416
diff
changeset
|
1075 */ |
320
d621239c30f7
nginx-0.0.3-2004-04-18-23:06:02 import
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parents:
319
diff
changeset
|
1076 |
134
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
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parents:
133
diff
changeset
|
1077 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
|
1078 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
|
1079 |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
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parents:
155
diff
changeset
|
1080 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
|
1081 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
changeset
|
1082 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
|
1083 conf->min_length = NGX_CONF_UNSET; |
134
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
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parents:
133
diff
changeset
|
1084 |
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parents:
133
diff
changeset
|
1085 return conf; |
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
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parents:
133
diff
changeset
|
1086 } |
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
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parents:
133
diff
changeset
|
1087 |
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
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parents:
133
diff
changeset
|
1088 |
497 | 1089 static char * |
1090 ngx_http_gzip_merge_conf(ngx_conf_t *cf, void *parent, void *child) | |
134
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parents:
133
diff
changeset
|
1091 { |
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
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parents:
133
diff
changeset
|
1092 ngx_http_gzip_conf_t *prev = parent; |
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
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parents:
133
diff
changeset
|
1093 ngx_http_gzip_conf_t *conf = child; |
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
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133
diff
changeset
|
1094 |
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
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parents:
133
diff
changeset
|
1095 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
|
1096 |
2412
086c20fe2e97
set default gzip_buffers to 32 4k or 16 8k
Igor Sysoev <igor@sysoev.ru>
parents:
2410
diff
changeset
|
1097 ngx_conf_merge_bufs_value(conf->bufs, prev->bufs, |
086c20fe2e97
set default gzip_buffers to 32 4k or 16 8k
Igor Sysoev <igor@sysoev.ru>
parents:
2410
diff
changeset
|
1098 (128 * 1024) / ngx_pagesize, ngx_pagesize); |
314
d71c87d11b16
nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents:
294
diff
changeset
|
1099 |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
1100 ngx_conf_merge_value(conf->level, prev->level, 1); |
319
7a8ebba985a9
nginx-0.0.3-2004-04-16-19:27:31 import
Igor Sysoev <igor@sysoev.ru>
parents:
315
diff
changeset
|
1101 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
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|
1102 ngx_conf_merge_size_value(conf->memlevel, prev->memlevel, |
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nginx-0.0.3-2004-04-16-19:27:31 import
Igor Sysoev <igor@sysoev.ru>
parents:
315
diff
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|
1103 MAX_MEM_LEVEL - 1); |
577 | 1104 ngx_conf_merge_value(conf->min_length, prev->min_length, 20); |
134
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
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1105 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
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1106 |
2166
723df5089c05
use hash in gzip_types, ssi_types, and sub_filter_types
Igor Sysoev <igor@sysoev.ru>
parents:
2051
diff
changeset
|
1107 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
|
1108 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
|
1109 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
|
1110 != NGX_OK) |
723df5089c05
use hash in gzip_types, ssi_types, and sub_filter_types
Igor Sysoev <igor@sysoev.ru>
parents:
2051
diff
changeset
|
1111 { |
723df5089c05
use hash in gzip_types, ssi_types, and sub_filter_types
Igor Sysoev <igor@sysoev.ru>
parents:
2051
diff
changeset
|
1112 return NGX_CONF_ERROR; |
452 | 1113 } |
1114 | |
1115 return NGX_CONF_OK; | |
1116 } | |
1117 | |
1118 | |
681 | 1119 static ngx_int_t |
1120 ngx_http_gzip_filter_init(ngx_conf_t *cf) | |
1121 { | |
1122 ngx_http_next_header_filter = ngx_http_top_header_filter; | |
1123 ngx_http_top_header_filter = ngx_http_gzip_header_filter; | |
1124 | |
1125 ngx_http_next_body_filter = ngx_http_top_body_filter; | |
1126 ngx_http_top_body_filter = ngx_http_gzip_body_filter; | |
1127 | |
1128 return NGX_OK; | |
1129 } | |
1130 | |
1131 | |
497 | 1132 static char * |
527 | 1133 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
|
1134 { |
2290 | 1135 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
|
1136 |
2290 | 1137 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
|
1138 |
430
1fa5daf7558e
nginx-0.0.11-2004-09-19-22:27:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
416
diff
changeset
|
1139 wbits = 15; |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
1140 |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
1141 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
|
1142 |
158
d377ee423603
nginx-0.0.1-2003-10-24-10:53:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
157
diff
changeset
|
1143 if (wsize == *np) { |
d377ee423603
nginx-0.0.1-2003-10-24-10:53:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
157
diff
changeset
|
1144 *np = wbits; |
430
1fa5daf7558e
nginx-0.0.11-2004-09-19-22:27:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
416
diff
changeset
|
1145 |
1fa5daf7558e
nginx-0.0.11-2004-09-19-22:27:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
416
diff
changeset
|
1146 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
|
1147 } |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
1148 |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
1149 wbits--; |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
1150 } |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
1151 |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
1152 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
|
1153 } |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
1154 |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
1155 |
497 | 1156 static char * |
527 | 1157 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
|
1158 { |
2290 | 1159 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
|
1160 |
2290 | 1161 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
|
1162 |
430
1fa5daf7558e
nginx-0.0.11-2004-09-19-22:27:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
416
diff
changeset
|
1163 memlevel = 9; |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
1164 |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
1165 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
|
1166 |
158
d377ee423603
nginx-0.0.1-2003-10-24-10:53:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
157
diff
changeset
|
1167 if (hsize == *np) { |
d377ee423603
nginx-0.0.1-2003-10-24-10:53:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
157
diff
changeset
|
1168 *np = memlevel; |
430
1fa5daf7558e
nginx-0.0.11-2004-09-19-22:27:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
416
diff
changeset
|
1169 |
1fa5daf7558e
nginx-0.0.11-2004-09-19-22:27:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
416
diff
changeset
|
1170 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
|
1171 } |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
1172 |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
1173 memlevel--; |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
1174 } |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
1175 |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
1176 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
|
1177 } |