annotate src/http/modules/ngx_http_gzip_filter_module.c @ 122:d25a1d6034f1 NGINX_0_3_8

nginx 0.3.8 *) Security: nginx now checks URI got from a backend in "X-Accel-Redirect" header line or in SSI file for the "/../" paths and zeroes. *) Change: nginx now does not treat the empty user name in the "Authorization" header line as valid one. *) Feature: the "ssl_session_timeout" directives of the ngx_http_ssl_module and ngx_imap_ssl_module. *) Feature: the "auth_http_header" directive of the ngx_imap_auth_http_module. *) Feature: the "add_header" directive. *) Feature: the ngx_http_realip_module. *) Feature: the new variables to use in the "log_format" directive: $bytes_sent, $apache_bytes_sent, $status, $time_gmt, $uri, $request_time, $request_length, $upstream_status, $upstream_response_time, $gzip_ratio, $uid_got, $uid_set, $connection, $pipe, and $msec. The parameters in the "%name" form will be canceled soon. *) Change: now the false variable values in the "if" directive are the empty string "" and string starting with "0". *) Bugfix: while using proxied or FastCGI-server nginx may leave connections and temporary files with client requests in open state. *) Bugfix: the worker processes did not flush the buffered logs on graceful exit. *) Bugfix: if the request URI was changes by the "rewrite" directive and the request was proxied in location given by regular expression, then the incorrect request was transferred to backend; bug appeared in 0.2.6. *) Bugfix: the "expires" directive did not remove the previous "Expires" header. *) Bugfix: nginx may stop to accept requests if the "rtsig" method and several worker processes were used. *) Bugfix: the "\"" and "\'" escape symbols were incorrectly handled in SSI commands. *) Bugfix: if the response was ended just after the SSI command and gzipping was used, then the response did not transferred complete or did not transferred at all.
author Igor Sysoev <http://sysoev.ru>
date Wed, 09 Nov 2005 00:00:00 +0300
parents f63280c59dd5
children df17fbafec8f
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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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5
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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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10
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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_array_t *types; /* array of ngx_str_t */
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19
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20 ngx_bufs_t bufs;
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21
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22 ngx_uint_t http_version;
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23 ngx_uint_t proxied;
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24
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25 int level;
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26 size_t wbits;
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27 size_t memlevel;
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28 ssize_t min_length;
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29 } ngx_http_gzip_conf_t;
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32 #define NGX_HTTP_GZIP_PROXIED_OFF 0x0002
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33 #define NGX_HTTP_GZIP_PROXIED_EXPIRED 0x0004
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34 #define NGX_HTTP_GZIP_PROXIED_NO_CACHE 0x0008
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35 #define NGX_HTTP_GZIP_PROXIED_NO_STORE 0x0010
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36 #define NGX_HTTP_GZIP_PROXIED_PRIVATE 0x0020
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37 #define NGX_HTTP_GZIP_PROXIED_NO_LM 0x0040
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38 #define NGX_HTTP_GZIP_PROXIED_NO_ETAG 0x0080
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39 #define NGX_HTTP_GZIP_PROXIED_AUTH 0x0100
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40 #define NGX_HTTP_GZIP_PROXIED_ANY 0x0200
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41
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42
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43 typedef struct {
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44 ngx_chain_t *in;
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45 ngx_chain_t *free;
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46 ngx_chain_t *busy;
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47 ngx_chain_t *out;
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48 ngx_chain_t **last_out;
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49 ngx_buf_t *in_buf;
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50 ngx_buf_t *out_buf;
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51 ngx_int_t bufs;
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52
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53 off_t length;
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54
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55 void *preallocated;
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56 char *free_mem;
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57 ngx_uint_t allocated;
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58
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59 unsigned flush:4;
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60 unsigned redo:1;
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61 unsigned done:1;
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62
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63 size_t zin;
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64 size_t zout;
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65
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66 uint32_t crc32;
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67 z_stream zstream;
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68 ngx_http_request_t *request;
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69 } ngx_http_gzip_ctx_t;
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72 static ngx_int_t ngx_http_gzip_proxied(ngx_http_request_t *r,
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73 ngx_http_gzip_conf_t *conf);
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74 static void *ngx_http_gzip_filter_alloc(void *opaque, u_int items,
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75 u_int size);
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76 static void ngx_http_gzip_filter_free(void *opaque, void *address);
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77 static void ngx_http_gzip_error(ngx_http_gzip_ctx_t *ctx);
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78
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79 static u_char *ngx_http_gzip_log_ratio(ngx_http_request_t *r, u_char *buf,
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80 ngx_http_log_op_t *op);
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81
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82 static ngx_int_t ngx_http_gzip_add_variables(ngx_conf_t *cf);
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83 static ngx_int_t ngx_http_gzip_ratio_variable(ngx_http_request_t *r,
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84 ngx_http_variable_value_t *v, uintptr_t data);
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85
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86 static ngx_int_t ngx_http_gzip_filter_init(ngx_cycle_t *cycle);
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87 static void *ngx_http_gzip_create_conf(ngx_conf_t *cf);
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88 static char *ngx_http_gzip_merge_conf(ngx_conf_t *cf,
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89 void *parent, void *child);
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90 static char *ngx_http_gzip_types(ngx_conf_t *cf, ngx_command_t *cmd,
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91 void *conf);
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92 static char *ngx_http_gzip_window(ngx_conf_t *cf, void *post, void *data);
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93 static char *ngx_http_gzip_hash(ngx_conf_t *cf, void *post, void *data);
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95
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96 static ngx_conf_num_bounds_t ngx_http_gzip_comp_level_bounds = {
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97 ngx_conf_check_num_bounds, 1, 9
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98 };
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99
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100 static ngx_conf_post_handler_pt ngx_http_gzip_window_p = ngx_http_gzip_window;
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101 static ngx_conf_post_handler_pt ngx_http_gzip_hash_p = ngx_http_gzip_hash;
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103
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104
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105 static ngx_conf_enum_t ngx_http_gzip_http_version[] = {
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106 { ngx_string("1.0"), NGX_HTTP_VERSION_10 },
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107 { ngx_string("1.1"), NGX_HTTP_VERSION_11 },
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108 { ngx_null_string, 0 }
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109 };
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110
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111
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112 static ngx_conf_bitmask_t ngx_http_gzip_proxied_mask[] = {
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113 { ngx_string("off"), NGX_HTTP_GZIP_PROXIED_OFF },
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114 { ngx_string("expired"), NGX_HTTP_GZIP_PROXIED_EXPIRED },
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115 { ngx_string("no-cache"), NGX_HTTP_GZIP_PROXIED_NO_CACHE },
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116 { ngx_string("no-store"), NGX_HTTP_GZIP_PROXIED_NO_STORE },
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117 { ngx_string("private"), NGX_HTTP_GZIP_PROXIED_PRIVATE },
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118 { ngx_string("no_last_modified"), NGX_HTTP_GZIP_PROXIED_NO_LM },
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119 { ngx_string("no_etag"), NGX_HTTP_GZIP_PROXIED_NO_ETAG },
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120 { ngx_string("auth"), NGX_HTTP_GZIP_PROXIED_AUTH },
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121 { ngx_string("any"), NGX_HTTP_GZIP_PROXIED_ANY },
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122 { ngx_null_string, 0 }
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123 };
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124
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125
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126 static ngx_command_t ngx_http_gzip_filter_commands[] = {
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127
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128 { ngx_string("gzip"),
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129 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF
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130 |NGX_CONF_FLAG,
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131 ngx_conf_set_flag_slot,
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132 NGX_HTTP_LOC_CONF_OFFSET,
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133 offsetof(ngx_http_gzip_conf_t, enable),
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134 NULL },
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135
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136 { ngx_string("gzip_buffers"),
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137 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2,
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138 ngx_conf_set_bufs_slot,
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139 NGX_HTTP_LOC_CONF_OFFSET,
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140 offsetof(ngx_http_gzip_conf_t, bufs),
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141 NULL },
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142
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143 { ngx_string("gzip_types"),
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144 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
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145 ngx_http_gzip_types,
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146 NGX_HTTP_LOC_CONF_OFFSET,
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147 0,
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148 NULL },
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149
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150 { ngx_string("gzip_comp_level"),
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151 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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152 ngx_conf_set_num_slot,
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153 NGX_HTTP_LOC_CONF_OFFSET,
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154 offsetof(ngx_http_gzip_conf_t, level),
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155 &ngx_http_gzip_comp_level_bounds },
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156
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157 { ngx_string("gzip_window"),
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158 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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159 ngx_conf_set_size_slot,
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160 NGX_HTTP_LOC_CONF_OFFSET,
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161 offsetof(ngx_http_gzip_conf_t, wbits),
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162 &ngx_http_gzip_window_p },
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163
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164 { ngx_string("gzip_hash"),
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165 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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166 ngx_conf_set_size_slot,
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167 NGX_HTTP_LOC_CONF_OFFSET,
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168 offsetof(ngx_http_gzip_conf_t, memlevel),
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169 &ngx_http_gzip_hash_p },
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170
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171 { ngx_string("gzip_no_buffer"),
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172 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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173 ngx_conf_set_flag_slot,
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174 NGX_HTTP_LOC_CONF_OFFSET,
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175 offsetof(ngx_http_gzip_conf_t, no_buffer),
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176 NULL },
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177
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178 { ngx_string("gzip_http_version"),
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179 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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180 ngx_conf_set_enum_slot,
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181 NGX_HTTP_LOC_CONF_OFFSET,
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182 offsetof(ngx_http_gzip_conf_t, http_version),
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183 &ngx_http_gzip_http_version },
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184
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185 { ngx_string("gzip_proxied"),
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186 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
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187 ngx_conf_set_bitmask_slot,
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188 NGX_HTTP_LOC_CONF_OFFSET,
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189 offsetof(ngx_http_gzip_conf_t, proxied),
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190 &ngx_http_gzip_proxied_mask },
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191
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192 { ngx_string("gzip_min_length"),
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193 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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194 ngx_conf_set_size_slot,
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195 NGX_HTTP_LOC_CONF_OFFSET,
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196 offsetof(ngx_http_gzip_conf_t, min_length),
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197 NULL },
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198
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199 ngx_null_command
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200 };
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201
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202
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203 static ngx_http_module_t ngx_http_gzip_filter_module_ctx = {
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204 ngx_http_gzip_add_variables, /* preconfiguration */
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205 NULL, /* postconfiguration */
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206
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207 NULL, /* create main configuration */
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208 NULL, /* init main configuration */
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209
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210 NULL, /* create server configuration */
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211 NULL, /* merge server configuration */
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212
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213 ngx_http_gzip_create_conf, /* create location configuration */
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214 ngx_http_gzip_merge_conf /* merge location configuration */
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215 };
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216
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217
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218 ngx_module_t ngx_http_gzip_filter_module = {
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219 NGX_MODULE_V1,
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220 &ngx_http_gzip_filter_module_ctx, /* module context */
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221 ngx_http_gzip_filter_commands, /* module directives */
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222 NGX_HTTP_MODULE, /* module type */
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223 NULL, /* init master */
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224 ngx_http_gzip_filter_init, /* init module */
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225 NULL, /* init process */
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226 NULL, /* init thread */
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227 NULL, /* exit thread */
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228 NULL, /* exit process */
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229 NULL, /* exit master */
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230 NGX_MODULE_V1_PADDING
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231 };
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232
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233
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234 static ngx_http_log_op_name_t ngx_http_gzip_log_fmt_ops[] = {
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235 { ngx_string("gzip_ratio"), NGX_INT32_LEN + 3,
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236 NULL, NULL, ngx_http_gzip_log_ratio },
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237 { ngx_null_string, 0, NULL, NULL, NULL }
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238 };
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239
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240
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241
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242 static u_char gzheader[10] = { 0x1f, 0x8b, Z_DEFLATED, 0, 0, 0, 0, 0, 0, 3 };
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243
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244 #if (NGX_HAVE_LITTLE_ENDIAN && NGX_HAVE_NONALIGNED)
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245
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246 struct gztrailer {
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247 uint32_t crc32;
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248 uint32_t zlen;
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249 };
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250
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251 #else /* NGX_HAVE_BIG_ENDIAN || !NGX_HAVE_NONALIGNED */
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252
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253 struct gztrailer {
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254 u_char crc32[4];
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255 u_char zlen[4];
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256 };
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257
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258 #endif
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259
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260
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261 static ngx_str_t ngx_http_gzip_ratio = ngx_string("gzip_ratio");
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262 static ngx_str_t ngx_http_gzip_no_cache = ngx_string("no-cache");
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263 static ngx_str_t ngx_http_gzip_no_store = ngx_string("no-store");
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264 static ngx_str_t ngx_http_gzip_private = ngx_string("private");
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265
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266
50
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267 static ngx_http_output_header_filter_pt ngx_http_next_header_filter;
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268 static ngx_http_output_body_filter_pt ngx_http_next_body_filter;
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269
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270
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271 static ngx_int_t
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272 ngx_http_gzip_header_filter(ngx_http_request_t *r)
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273 {
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274 ngx_str_t *type;
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275 ngx_uint_t i;
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276 ngx_http_gzip_ctx_t *ctx;
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277 ngx_http_gzip_conf_t *conf;
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278
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279 conf = ngx_http_get_module_loc_conf(r, ngx_http_gzip_filter_module);
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280
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281 if (!conf->enable
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282 || (r->headers_out.status != NGX_HTTP_OK
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283 && r->headers_out.status != NGX_HTTP_FORBIDDEN
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284 && r->headers_out.status != NGX_HTTP_NOT_FOUND)
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285 || r->header_only
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286 || r->main != r
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287 || r->http_version < conf->http_version
58
b55cbf18157e nginx 0.1.29
Igor Sysoev <http://sysoev.ru>
parents: 50
diff changeset
288 || r->headers_out.content_type.len == 0
50
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
289 || (r->headers_out.content_encoding
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
290 && r->headers_out.content_encoding->value.len)
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
291 || r->headers_in.accept_encoding == NULL
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
292 || (r->headers_out.content_length_n != -1
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
293 && r->headers_out.content_length_n < conf->min_length)
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
294 || ngx_strstr(r->headers_in.accept_encoding->value.data, "gzip") == NULL
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
295 )
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
296 {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
297 return ngx_http_next_header_filter(r);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
298 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
299
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
300
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
301 type = conf->types->elts;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
302 for (i = 0; i < conf->types->nelts; i++) {
76
da9a3b14312d nginx 0.1.38
Igor Sysoev <http://sysoev.ru>
parents: 62
diff changeset
303 if (r->headers_out.content_type.len >= type[i].len
58
b55cbf18157e nginx 0.1.29
Igor Sysoev <http://sysoev.ru>
parents: 50
diff changeset
304 && ngx_strncasecmp(r->headers_out.content_type.data,
76
da9a3b14312d nginx 0.1.38
Igor Sysoev <http://sysoev.ru>
parents: 62
diff changeset
305 type[i].data, type[i].len) == 0)
50
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
306 {
76
da9a3b14312d nginx 0.1.38
Igor Sysoev <http://sysoev.ru>
parents: 62
diff changeset
307 goto found;
50
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
308 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
309 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
310
76
da9a3b14312d nginx 0.1.38
Igor Sysoev <http://sysoev.ru>
parents: 62
diff changeset
311 return ngx_http_next_header_filter(r);
50
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
312
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
313
76
da9a3b14312d nginx 0.1.38
Igor Sysoev <http://sysoev.ru>
parents: 62
diff changeset
314 found:
da9a3b14312d nginx 0.1.38
Igor Sysoev <http://sysoev.ru>
parents: 62
diff changeset
315
50
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
316 if (r->headers_in.via) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
317 if (conf->proxied & NGX_HTTP_GZIP_PROXIED_OFF) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
318 return ngx_http_next_header_filter(r);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
319 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
320
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
321 if (!(conf->proxied & NGX_HTTP_GZIP_PROXIED_ANY)
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
322 && ngx_http_gzip_proxied(r, conf) == NGX_DECLINED)
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
323 {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
324 return ngx_http_next_header_filter(r);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
325 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
326 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
327
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
328
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
329 /*
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
330 * if the URL (without the "http://" prefix) is longer than 253 bytes
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
331 * then MSIE 4.x can not handle the compressed stream - it waits too long,
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
332 * hangs up or crashes
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
333 */
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
334
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
335 if (r->headers_in.msie4 && r->unparsed_uri.len > 200) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
336 return ngx_http_next_header_filter(r);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
337 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
338
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
339 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_gzip_ctx_t));
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
340 if (ctx == NULL) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
341 return NGX_ERROR;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
342 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
343
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
344 ngx_http_set_ctx(r, ctx, ngx_http_gzip_filter_module);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
345
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
346
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
347 ctx->request = r;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
348
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
349 r->headers_out.content_encoding = ngx_list_push(&r->headers_out.headers);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
350 if (r->headers_out.content_encoding == NULL) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
351 return NGX_ERROR;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
352 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
353
58
b55cbf18157e nginx 0.1.29
Igor Sysoev <http://sysoev.ru>
parents: 50
diff changeset
354 r->headers_out.content_encoding->hash = 1;
50
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
355 r->headers_out.content_encoding->key.len = sizeof("Content-Encoding") - 1;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
356 r->headers_out.content_encoding->key.data = (u_char *) "Content-Encoding";
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
357 r->headers_out.content_encoding->value.len = sizeof("gzip") - 1;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
358 r->headers_out.content_encoding->value.data = (u_char *) "gzip";
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
359
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
360 ctx->length = r->headers_out.content_length_n;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
361 r->headers_out.content_length_n = -1;
58
b55cbf18157e nginx 0.1.29
Igor Sysoev <http://sysoev.ru>
parents: 50
diff changeset
362
50
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
363 if (r->headers_out.content_length) {
58
b55cbf18157e nginx 0.1.29
Igor Sysoev <http://sysoev.ru>
parents: 50
diff changeset
364 r->headers_out.content_length->hash = 0;
50
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
365 r->headers_out.content_length = NULL;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
366 }
58
b55cbf18157e nginx 0.1.29
Igor Sysoev <http://sysoev.ru>
parents: 50
diff changeset
367
62
0790a8599248 nginx 0.1.31
Igor Sysoev <http://sysoev.ru>
parents: 58
diff changeset
368 r->main_filter_need_in_memory = 1;
50
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
369
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
370 return ngx_http_next_header_filter(r);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
371 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
372
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
373
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
374 static ngx_int_t
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
375 ngx_http_gzip_proxied(ngx_http_request_t *r, ngx_http_gzip_conf_t *conf)
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
376 {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
377 time_t date, expires;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
378
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
379 if (r->headers_in.authorization
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
380 && (conf->proxied & NGX_HTTP_GZIP_PROXIED_AUTH))
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
381 {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
382 return NGX_OK;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
383 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
384
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
385 if (r->headers_out.expires) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
386
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
387 if (!(conf->proxied & NGX_HTTP_GZIP_PROXIED_EXPIRED)) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
388 return NGX_DECLINED;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
389 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
390
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
391 expires = ngx_http_parse_time(r->headers_out.expires->value.data,
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
392 r->headers_out.expires->value.len);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
393 if (expires == NGX_ERROR) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
394 return NGX_DECLINED;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
395 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
396
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
397 if (r->headers_out.date) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
398 date = ngx_http_parse_time(r->headers_out.date->value.data,
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
399 r->headers_out.date->value.len);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
400 if (date == NGX_ERROR) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
401 return NGX_DECLINED;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
402 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
403
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
404 } else {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
405 date = ngx_time();
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
406 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
407
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
408 if (expires < date) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
409 return NGX_OK;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
410 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
411
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
412 return NGX_DECLINED;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
413 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
414
58
b55cbf18157e nginx 0.1.29
Igor Sysoev <http://sysoev.ru>
parents: 50
diff changeset
415 if (r->headers_out.cache_control.elts) {
50
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
416
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
417 if ((conf->proxied & NGX_HTTP_GZIP_PROXIED_NO_CACHE)
58
b55cbf18157e nginx 0.1.29
Igor Sysoev <http://sysoev.ru>
parents: 50
diff changeset
418 && ngx_http_parse_multi_header_lines(&r->headers_out.cache_control,
b55cbf18157e nginx 0.1.29
Igor Sysoev <http://sysoev.ru>
parents: 50
diff changeset
419 &ngx_http_gzip_no_cache, NULL) >= 0)
50
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
420 {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
421 return NGX_OK;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
422 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
423
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
424 if ((conf->proxied & NGX_HTTP_GZIP_PROXIED_NO_STORE)
58
b55cbf18157e nginx 0.1.29
Igor Sysoev <http://sysoev.ru>
parents: 50
diff changeset
425 && ngx_http_parse_multi_header_lines(&r->headers_out.cache_control,
b55cbf18157e nginx 0.1.29
Igor Sysoev <http://sysoev.ru>
parents: 50
diff changeset
426 &ngx_http_gzip_no_store, NULL) >= 0)
50
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
427 {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
428 return NGX_OK;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
429 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
430
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
431 if ((conf->proxied & NGX_HTTP_GZIP_PROXIED_PRIVATE)
58
b55cbf18157e nginx 0.1.29
Igor Sysoev <http://sysoev.ru>
parents: 50
diff changeset
432 && ngx_http_parse_multi_header_lines(&r->headers_out.cache_control,
b55cbf18157e nginx 0.1.29
Igor Sysoev <http://sysoev.ru>
parents: 50
diff changeset
433 &ngx_http_gzip_private, NULL) >= 0)
50
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
434 {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
435 return NGX_OK;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
436 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
437
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
438 return NGX_DECLINED;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
439 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
440
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
441 if ((conf->proxied & NGX_HTTP_GZIP_PROXIED_NO_LM)
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
442 && r->headers_out.last_modified)
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
443 {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
444 return NGX_DECLINED;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
445 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
446
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
447 if ((conf->proxied & NGX_HTTP_GZIP_PROXIED_NO_ETAG)
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
448 && r->headers_out.etag)
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
449 {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
450 return NGX_DECLINED;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
451 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
452
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
453 return NGX_OK;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
454 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
455
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
456
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
457 static ngx_int_t
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
458 ngx_http_gzip_body_filter(ngx_http_request_t *r, ngx_chain_t *in)
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
459 {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
460 int rc, wbits, memlevel;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
461 ngx_int_t last;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
462 struct gztrailer *trailer;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
463 ngx_buf_t *b;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
464 ngx_chain_t *cl, out;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
465 ngx_http_gzip_ctx_t *ctx;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
466 ngx_http_gzip_conf_t *conf;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
467
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
468 ctx = ngx_http_get_module_ctx(r, ngx_http_gzip_filter_module);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
469
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
470 if (ctx == NULL || ctx->done) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
471 return ngx_http_next_body_filter(r, in);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
472 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
473
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
474 conf = ngx_http_get_module_loc_conf(r, ngx_http_gzip_filter_module);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
475
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
476 if (ctx->preallocated == NULL) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
477 wbits = conf->wbits;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
478 memlevel = conf->memlevel;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
479
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
480 if (ctx->length > 0) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
481
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
482 /* the actual zlib window size is smaller by 262 bytes */
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
483
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
484 while (ctx->length < ((1 << (wbits - 1)) - 262)) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
485 wbits--;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
486 memlevel--;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
487 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
488 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
489
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
490 /*
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
491 * We preallocate a memory for zlib in one buffer (200K-400K), this
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
492 * decreases a number of malloc() and free() calls and also probably
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
493 * decreases a number of syscalls (sbrk() and so on).
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
494 * Besides we free this memory as soon as the gzipping will complete
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
495 * and do not wait while a whole response will be sent to a client.
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
496 *
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
497 * 8K is for zlib deflate_state, it takes
58
b55cbf18157e nginx 0.1.29
Igor Sysoev <http://sysoev.ru>
parents: 50
diff changeset
498 * *) 5816 bytes on i386 and sparc64 (32-bit mode)
b55cbf18157e nginx 0.1.29
Igor Sysoev <http://sysoev.ru>
parents: 50
diff changeset
499 * *) 5920 bytes on amd64 and sparc64
50
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
500 */
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
501
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
502 ctx->allocated = 8192 + (1 << (wbits + 2)) + (1 << (memlevel + 9));
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
503
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
504 ctx->preallocated = ngx_palloc(r->pool, ctx->allocated);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
505 if (ctx->preallocated == NULL) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
506 return NGX_ERROR;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
507 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
508
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
509 ctx->free_mem = ctx->preallocated;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
510
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
511 ctx->zstream.zalloc = ngx_http_gzip_filter_alloc;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
512 ctx->zstream.zfree = ngx_http_gzip_filter_free;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
513 ctx->zstream.opaque = ctx;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
514
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
515 rc = deflateInit2(&ctx->zstream, conf->level, Z_DEFLATED,
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
516 -wbits, memlevel, Z_DEFAULT_STRATEGY);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
517
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
518 if (rc != Z_OK) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
519 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
520 "deflateInit2() failed: %d", rc);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
521 ngx_http_gzip_error(ctx);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
522 return NGX_ERROR;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
523 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
524
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
525 b = ngx_pcalloc(r->pool, sizeof(ngx_buf_t));
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
526 if (b == NULL) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
527 ngx_http_gzip_error(ctx);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
528 return NGX_ERROR;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
529 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
530
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
531 b->memory = 1;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
532 b->pos = gzheader;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
533 b->last = b->pos + 10;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
534
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
535 out.buf = b;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
536 out.next = NULL;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
537
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
538 /*
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
539 * We pass the gzheader to the next filter now to avoid its linking
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
540 * to the ctx->busy chain. zlib does not usually output the compressed
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
541 * data in the initial iterations, so the gzheader that was linked
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
542 * to the ctx->busy chain would be flushed by ngx_http_write_filter().
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
543 */
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
544
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
545 if (ngx_http_next_body_filter(r, &out) == NGX_ERROR) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
546 ngx_http_gzip_error(ctx);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
547 return NGX_ERROR;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
548 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
549
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
550 ctx->last_out = &ctx->out;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
551
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
552 ctx->crc32 = crc32(0L, Z_NULL, 0);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
553 ctx->flush = Z_NO_FLUSH;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
554 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
555
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
556 if (in) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
557 if (ngx_chain_add_copy(r->pool, &ctx->in, in) == NGX_ERROR) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
558 ngx_http_gzip_error(ctx);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
559 return NGX_ERROR;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
560 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
561 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
562
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
563 last = NGX_NONE;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
564
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
565 for ( ;; ) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
566
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
567 for ( ;; ) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
568
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
569 /* does zlib need a new data ? */
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
570
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
571 if (ctx->zstream.avail_in == 0
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
572 && ctx->flush == Z_NO_FLUSH
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
573 && !ctx->redo)
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
574 {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
575 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
576 "gzip in: %p", ctx->in);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
577
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
578 if (ctx->in == NULL) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
579 break;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
580 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
581
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
582 ctx->in_buf = ctx->in->buf;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
583 ctx->in = ctx->in->next;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
584
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
585 ctx->zstream.next_in = ctx->in_buf->pos;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
586 ctx->zstream.avail_in = ctx->in_buf->last - ctx->in_buf->pos;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
587
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
588 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
589 "gzip in_buf:%p ni:%p ai:%ud",
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
590 ctx->in_buf,
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
591 ctx->zstream.next_in, ctx->zstream.avail_in);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
592
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
593 /* STUB */
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
594 if (ctx->in_buf->last < ctx->in_buf->pos) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
595 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
596 "zstream.avail_in is huge");
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
597 ctx->done = 1;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
598 return NGX_ERROR;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
599 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
600 /**/
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
601
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
602 if (ctx->in_buf->last_buf) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
603 ctx->flush = Z_FINISH;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
604
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
605 } else if (ctx->in_buf->flush) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
606 ctx->flush = Z_SYNC_FLUSH;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
607 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
608
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
609 if (ctx->zstream.avail_in == 0) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
610 if (ctx->flush == Z_NO_FLUSH) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
611 continue;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
612 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
613
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
614 } else {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
615 ctx->crc32 = crc32(ctx->crc32, ctx->zstream.next_in,
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
616 ctx->zstream.avail_in);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
617 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
618 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
619
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
620
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
621 /* is there a space for the gzipped data ? */
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
622
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
623 if (ctx->zstream.avail_out == 0) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
624
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
625 if (ctx->free) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
626 ctx->out_buf = ctx->free->buf;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
627 ctx->free = ctx->free->next;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
628
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
629 } else if (ctx->bufs < conf->bufs.num) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
630 ctx->out_buf = ngx_create_temp_buf(r->pool,
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
631 conf->bufs.size);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
632 if (ctx->out_buf == NULL) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
633 ngx_http_gzip_error(ctx);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
634 return NGX_ERROR;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
635 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
636
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
637 ctx->out_buf->tag = (ngx_buf_tag_t)
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
638 &ngx_http_gzip_filter_module;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
639 ctx->out_buf->recycled = 1;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
640 ctx->bufs++;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
641
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
642 } else {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
643 break;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
644 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
645
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
646 ctx->zstream.next_out = ctx->out_buf->pos;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
647 ctx->zstream.avail_out = conf->bufs.size;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
648 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
649
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
650 ngx_log_debug6(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
651 "deflate in: ni:%p no:%p ai:%ud ao:%ud fl:%d redo:%d",
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
652 ctx->zstream.next_in, ctx->zstream.next_out,
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
653 ctx->zstream.avail_in, ctx->zstream.avail_out,
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
654 ctx->flush, ctx->redo);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
655
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
656 rc = deflate(&ctx->zstream, ctx->flush);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
657
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
658 if (rc != Z_OK && rc != Z_STREAM_END) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
659 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
660 "deflate() failed: %d, %d", ctx->flush, rc);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
661 ngx_http_gzip_error(ctx);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
662 return NGX_ERROR;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
663 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
664
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
665 ngx_log_debug5(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
666 "deflate out: ni:%p no:%p ai:%ud ao:%ud rc:%d",
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
667 ctx->zstream.next_in, ctx->zstream.next_out,
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
668 ctx->zstream.avail_in, ctx->zstream.avail_out,
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
669 rc);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
670
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
671 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
672 "gzip in_buf:%p pos:%p",
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
673 ctx->in_buf, ctx->in_buf->pos);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
674
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
675
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
676 if (ctx->zstream.next_in) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
677 ctx->in_buf->pos = ctx->zstream.next_in;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
678
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
679 if (ctx->zstream.avail_in == 0) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
680 ctx->zstream.next_in = NULL;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
681 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
682 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
683
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
684 ctx->out_buf->last = ctx->zstream.next_out;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
685
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
686 if (ctx->zstream.avail_out == 0) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
687
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
688 /* zlib wants to output some more gzipped data */
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
689
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
690 cl = ngx_alloc_chain_link(r->pool);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
691 if (cl == NULL) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
692 ngx_http_gzip_error(ctx);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
693 return NGX_ERROR;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
694 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
695
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
696 cl->buf = ctx->out_buf;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
697 cl->next = NULL;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
698 *ctx->last_out = cl;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
699 ctx->last_out = &cl->next;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
700
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
701 ctx->redo = 1;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
702
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
703 continue;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
704 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
705
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
706 ctx->redo = 0;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
707
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
708 if (ctx->flush == Z_SYNC_FLUSH) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
709
58
b55cbf18157e nginx 0.1.29
Igor Sysoev <http://sysoev.ru>
parents: 50
diff changeset
710 ctx->zstream.avail_out = 0;
b55cbf18157e nginx 0.1.29
Igor Sysoev <http://sysoev.ru>
parents: 50
diff changeset
711 ctx->out_buf->flush = 1;
50
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
712 ctx->flush = Z_NO_FLUSH;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
713
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
714 cl = ngx_alloc_chain_link(r->pool);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
715 if (cl == NULL) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
716 ngx_http_gzip_error(ctx);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
717 return NGX_ERROR;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
718 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
719
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
720 cl->buf = ctx->out_buf;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
721 cl->next = NULL;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
722 *ctx->last_out = cl;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
723 ctx->last_out = &cl->next;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
724
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
725 break;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
726 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
727
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
728 if (rc == Z_STREAM_END) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
729
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
730 ctx->zin = ctx->zstream.total_in;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
731 ctx->zout = 10 + ctx->zstream.total_out + 8;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
732
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
733 rc = deflateEnd(&ctx->zstream);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
734
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
735 if (rc != Z_OK) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
736 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
737 "deflateEnd() failed: %d", rc);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
738 ngx_http_gzip_error(ctx);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
739 return NGX_ERROR;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
740 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
741
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
742 ngx_pfree(r->pool, ctx->preallocated);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
743
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
744 cl = ngx_alloc_chain_link(r->pool);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
745 if (cl == NULL) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
746 ngx_http_gzip_error(ctx);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
747 return NGX_ERROR;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
748 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
749
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
750 cl->buf = ctx->out_buf;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
751 cl->next = NULL;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
752 *ctx->last_out = cl;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
753 ctx->last_out = &cl->next;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
754
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
755 if (ctx->zstream.avail_out >= 8) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
756 trailer = (struct gztrailer *) ctx->out_buf->last;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
757 ctx->out_buf->last += 8;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
758 ctx->out_buf->last_buf = 1;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
759
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
760 } else {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
761 b = ngx_create_temp_buf(r->pool, 8);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
762 if (b == NULL) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
763 ngx_http_gzip_error(ctx);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
764 return NGX_ERROR;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
765 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
766
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
767 b->last_buf = 1;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
768
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
769 cl = ngx_alloc_chain_link(r->pool);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
770 if (cl == NULL) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
771 ngx_http_gzip_error(ctx);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
772 return NGX_ERROR;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
773 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
774
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
775 cl->buf = b;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
776 cl->next = NULL;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
777 *ctx->last_out = cl;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
778 ctx->last_out = &cl->next;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
779 trailer = (struct gztrailer *) b->pos;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
780 b->last += 8;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
781 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
782
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
783 #if (NGX_HAVE_LITTLE_ENDIAN && NGX_HAVE_NONALIGNED)
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
784
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
785 trailer->crc32 = ctx->crc32;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
786 trailer->zlen = ctx->zin;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
787
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
788 #else
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
789 trailer->crc32[0] = (u_char) (ctx->crc32 & 0xff);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
790 trailer->crc32[1] = (u_char) ((ctx->crc32 >> 8) & 0xff);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
791 trailer->crc32[2] = (u_char) ((ctx->crc32 >> 16) & 0xff);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
792 trailer->crc32[3] = (u_char) ((ctx->crc32 >> 24) & 0xff);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
793
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
794 trailer->zlen[0] = (u_char) (ctx->zin & 0xff);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
795 trailer->zlen[1] = (u_char) ((ctx->zin >> 8) & 0xff);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
796 trailer->zlen[2] = (u_char) ((ctx->zin >> 16) & 0xff);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
797 trailer->zlen[3] = (u_char) ((ctx->zin >> 24) & 0xff);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
798 #endif
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
799
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
800 ctx->zstream.avail_in = 0;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
801 ctx->zstream.avail_out = 0;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
802
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
803 ctx->done = 1;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
804
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
805 break;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
806 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
807
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
808 if (conf->no_buffer && ctx->in == NULL) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
809
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
810 cl = ngx_alloc_chain_link(r->pool);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
811 if (cl == NULL) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
812 ngx_http_gzip_error(ctx);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
813 return NGX_ERROR;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
814 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
815
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
816 cl->buf = ctx->out_buf;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
817 cl->next = NULL;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
818 *ctx->last_out = cl;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
819 ctx->last_out = &cl->next;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
820
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
821 break;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
822 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
823 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
824
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
825 if (last == NGX_AGAIN && !ctx->done) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
826 return NGX_AGAIN;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
827 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
828
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
829 if (ctx->out == NULL && ctx->busy == NULL) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
830 return NGX_OK;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
831 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
832
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
833 last = ngx_http_next_body_filter(r, ctx->out);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
834
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
835 /*
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
836 * we do not check NGX_AGAIN here because the downstream filters
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
837 * may free some buffers and zlib may compress some data into them
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
838 */
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
839
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
840 if (last == NGX_ERROR) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
841 ngx_http_gzip_error(ctx);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
842 return NGX_ERROR;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
843 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
844
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
845 ngx_chain_update_chains(&ctx->free, &ctx->busy, &ctx->out,
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
846 (ngx_buf_tag_t) &ngx_http_gzip_filter_module);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
847 ctx->last_out = &ctx->out;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
848
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
849 if (ctx->done) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
850 return last;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
851 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
852 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
853 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
854
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
855
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
856 static void *
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
857 ngx_http_gzip_filter_alloc(void *opaque, u_int items, u_int size)
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
858 {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
859 ngx_http_gzip_ctx_t *ctx = opaque;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
860
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
861 void *p;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
862 ngx_uint_t alloc;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
863
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
864 alloc = items * size;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
865
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
866 if (alloc % 512 != 0) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
867
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
868 /*
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
869 * The zlib deflate_state allocation, it takes about 6K,
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
870 * we allocate 8K. Other allocations are divisible by 512.
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
871 */
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
872
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
873 alloc = (alloc + ngx_pagesize - 1) & ~(ngx_pagesize - 1);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
874 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
875
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
876 if (alloc <= ctx->allocated) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
877 p = ctx->free_mem;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
878 ctx->free_mem += alloc;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
879 ctx->allocated -= alloc;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
880
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
881 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, ctx->request->connection->log, 0,
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
882 "gzip alloc: n:%ud s:%ud a:%ud p:%p",
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
883 items, size, alloc, p);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
884
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
885 return p;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
886 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
887
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
888 ngx_log_error(NGX_LOG_ALERT, ctx->request->connection->log, 0,
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
889 "gzip filter failed to use preallocated memory: %ud of %ud",
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
890 items * size, ctx->allocated);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
891
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
892 p = ngx_palloc(ctx->request->pool, items * size);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
893
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
894 return p;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
895 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
896
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
897
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
898 static void
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
899 ngx_http_gzip_filter_free(void *opaque, void *address)
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
900 {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
901 #if 0
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
902 ngx_http_gzip_ctx_t *ctx = opaque;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
903
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
904 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ctx->request->connection->log, 0,
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
905 "gzip free: %p", address);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
906 #endif
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
907 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
908
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
909
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
910 static u_char *
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
911 ngx_http_gzip_log_ratio(ngx_http_request_t *r, u_char *buf,
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
912 ngx_http_log_op_t *op)
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
913 {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
914 ngx_uint_t zint, zfrac;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
915 ngx_http_gzip_ctx_t *ctx;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
916
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
917 ctx = ngx_http_get_module_ctx(r, ngx_http_gzip_filter_module);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
918
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
919 if (ctx == NULL || ctx->zout == 0) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
920 *buf = '-';
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
921 return buf + 1;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
922 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
923
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
924 zint = (ngx_uint_t) (ctx->zin / ctx->zout);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
925 zfrac = (ngx_uint_t) ((ctx->zin * 100 / ctx->zout) % 100);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
926
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
927 if ((ctx->zin * 1000 / ctx->zout) % 10 > 4) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
928
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
929 /* the rounding, e.g., 2.125 to 2.13 */
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
930
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
931 zfrac++;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
932
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
933 if (zfrac > 99) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
934 zint++;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
935 zfrac = 0;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
936 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
937 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
938
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
939 return ngx_sprintf(buf, "%ui.%02ui", zint, zfrac);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
940 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
941
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
942
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
943 static void
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
944 ngx_http_gzip_error(ngx_http_gzip_ctx_t *ctx)
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
945 {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
946 deflateEnd(&ctx->zstream);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
947
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
948 if (ctx->preallocated) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
949 ngx_pfree(ctx->request->pool, ctx->preallocated);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
950 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
951
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
952 ctx->zstream.avail_in = 0;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
953 ctx->zstream.avail_out = 0;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
954
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
955 ctx->done = 1;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
956
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
957 return;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
958 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
959
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
960
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
961 static ngx_int_t
122
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
962 ngx_http_gzip_add_variables(ngx_conf_t *cf)
50
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
963 {
122
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
964 ngx_http_variable_t *var;
50
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
965 ngx_http_log_op_name_t *op;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
966
122
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
967 var = ngx_http_add_variable(cf, &ngx_http_gzip_ratio, 0);
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
968 if (var == NULL) {
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
969 return NGX_ERROR;
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
970 }
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
971
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
972 var->handler = ngx_http_gzip_ratio_variable;
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
973
50
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
974 for (op = ngx_http_gzip_log_fmt_ops; op->name.len; op++) { /* void */ }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
975 op->run = NULL;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
976
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
977 for (op = ngx_http_log_fmt_ops; op->run; op++) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
978 if (op->name.len == 0) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
979 op = (ngx_http_log_op_name_t *) op->run;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
980 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
981 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
982
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
983 op->run = (ngx_http_log_op_run_pt) ngx_http_gzip_log_fmt_ops;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
984
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
985 return NGX_OK;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
986 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
987
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
988
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
989 static ngx_int_t
122
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
990 ngx_http_gzip_ratio_variable(ngx_http_request_t *r,
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
991 ngx_http_variable_value_t *v, uintptr_t data)
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
992 {
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
993 ngx_uint_t zint, zfrac;
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
994 ngx_http_gzip_ctx_t *ctx;
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
995
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
996 v->valid = 1;
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
997 v->no_cachable = 0;
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
998 v->not_found = 0;
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
999
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
1000 ctx = ngx_http_get_module_ctx(r, ngx_http_gzip_filter_module);
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
1001
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
1002 if (ctx == NULL || ctx->zout == 0) {
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
1003 v->not_found = 1;
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
1004 return NGX_OK;
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
1005 }
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
1006
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
1007 v->data = ngx_palloc(r->pool, NGX_INT32_LEN + 3);
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
1008 if (v->data == NULL) {
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
1009 return NGX_ERROR;
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
1010 }
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
1011
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
1012 zint = (ngx_uint_t) (ctx->zin / ctx->zout);
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
1013 zfrac = (ngx_uint_t) ((ctx->zin * 100 / ctx->zout) % 100);
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
1014
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
1015 if ((ctx->zin * 1000 / ctx->zout) % 10 > 4) {
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
1016
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
1017 /* the rounding, e.g., 2.125 to 2.13 */
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
1018
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
1019 zfrac++;
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
1020
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
1021 if (zfrac > 99) {
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
1022 zint++;
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
1023 zfrac = 0;
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
1024 }
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
1025 }
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
1026
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
1027 v->len = ngx_sprintf(v->data, "%ui.%02ui", zint, zfrac) - v->data;
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
1028
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
1029 return NGX_OK;
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
1030 }
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
1031
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
1032
d25a1d6034f1 nginx 0.3.8
Igor Sysoev <http://sysoev.ru>
parents: 102
diff changeset
1033 static ngx_int_t
50
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1034 ngx_http_gzip_filter_init(ngx_cycle_t *cycle)
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1035 {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1036 ngx_http_next_header_filter = ngx_http_top_header_filter;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1037 ngx_http_top_header_filter = ngx_http_gzip_header_filter;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1038
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1039 ngx_http_next_body_filter = ngx_http_top_body_filter;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1040 ngx_http_top_body_filter = ngx_http_gzip_body_filter;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1041
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1042 return NGX_OK;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1043 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1044
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1045
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1046 static void *
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1047 ngx_http_gzip_create_conf(ngx_conf_t *cf)
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1048 {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1049 ngx_http_gzip_conf_t *conf;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1050
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1051 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_gzip_conf_t));
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1052 if (conf == NULL) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1053 return NGX_CONF_ERROR;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1054 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1055
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1056 /*
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1057 * set by ngx_pcalloc():
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1058 *
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1059 * conf->bufs.num = 0;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1060 * conf->proxied = 0;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1061 * conf->types = NULL;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1062 */
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1063
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1064 conf->enable = NGX_CONF_UNSET;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1065 conf->no_buffer = NGX_CONF_UNSET;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1066
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1067 conf->http_version = NGX_CONF_UNSET_UINT;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1068
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1069 conf->level = NGX_CONF_UNSET;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1070 conf->wbits = (size_t) NGX_CONF_UNSET;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1071 conf->memlevel = (size_t) NGX_CONF_UNSET;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1072 conf->min_length = NGX_CONF_UNSET;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1073
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1074 return conf;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1075 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1076
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1077
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1078 static char *
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1079 ngx_http_gzip_merge_conf(ngx_conf_t *cf, void *parent, void *child)
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1080 {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1081 ngx_http_gzip_conf_t *prev = parent;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1082 ngx_http_gzip_conf_t *conf = child;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1083
76
da9a3b14312d nginx 0.1.38
Igor Sysoev <http://sysoev.ru>
parents: 62
diff changeset
1084 ngx_str_t *type;
50
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1085
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1086 ngx_conf_merge_value(conf->enable, prev->enable, 0);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1087
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1088 ngx_conf_merge_bufs_value(conf->bufs, prev->bufs, 4, ngx_pagesize);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1089
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1090 ngx_conf_merge_unsigned_value(conf->http_version, prev->http_version,
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1091 NGX_HTTP_VERSION_11);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1092 ngx_conf_merge_bitmask_value(conf->proxied, prev->proxied,
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1093 (NGX_CONF_BITMASK_SET|NGX_HTTP_GZIP_PROXIED_OFF));
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1094
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1095 ngx_conf_merge_value(conf->level, prev->level, 1);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1096 ngx_conf_merge_size_value(conf->wbits, prev->wbits, MAX_WBITS);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1097 ngx_conf_merge_size_value(conf->memlevel, prev->memlevel,
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1098 MAX_MEM_LEVEL - 1);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1099 ngx_conf_merge_value(conf->min_length, prev->min_length, 0);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1100 ngx_conf_merge_value(conf->no_buffer, prev->no_buffer, 0);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1101
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1102 if (conf->types == NULL) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1103 if (prev->types == NULL) {
76
da9a3b14312d nginx 0.1.38
Igor Sysoev <http://sysoev.ru>
parents: 62
diff changeset
1104 conf->types = ngx_array_create(cf->pool, 1, sizeof(ngx_str_t));
50
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1105 if (conf->types == NULL) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1106 return NGX_CONF_ERROR;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1107 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1108
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1109 type = ngx_array_push(conf->types);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1110 if (type == NULL) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1111 return NGX_CONF_ERROR;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1112 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1113
76
da9a3b14312d nginx 0.1.38
Igor Sysoev <http://sysoev.ru>
parents: 62
diff changeset
1114 type->len = sizeof("text/html") - 1;
da9a3b14312d nginx 0.1.38
Igor Sysoev <http://sysoev.ru>
parents: 62
diff changeset
1115 type->data = (u_char *) "text/html";
50
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1116
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1117 } else {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1118 conf->types = prev->types;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1119 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1120 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1121
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1122 return NGX_CONF_OK;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1123 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1124
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1125
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1126 static char *
76
da9a3b14312d nginx 0.1.38
Igor Sysoev <http://sysoev.ru>
parents: 62
diff changeset
1127 ngx_http_gzip_types(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
50
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1128 {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1129 ngx_http_gzip_conf_t *gcf = conf;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1130
76
da9a3b14312d nginx 0.1.38
Igor Sysoev <http://sysoev.ru>
parents: 62
diff changeset
1131 ngx_str_t *value, *type;
da9a3b14312d nginx 0.1.38
Igor Sysoev <http://sysoev.ru>
parents: 62
diff changeset
1132 ngx_uint_t i;
50
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1133
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1134 if (gcf->types == NULL) {
76
da9a3b14312d nginx 0.1.38
Igor Sysoev <http://sysoev.ru>
parents: 62
diff changeset
1135 gcf->types = ngx_array_create(cf->pool, 4, sizeof(ngx_str_t));
50
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1136 if (gcf->types == NULL) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1137 return NGX_CONF_ERROR;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1138 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1139
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1140 type = ngx_array_push(gcf->types);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1141 if (type == NULL) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1142 return NGX_CONF_ERROR;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1143 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1144
76
da9a3b14312d nginx 0.1.38
Igor Sysoev <http://sysoev.ru>
parents: 62
diff changeset
1145 type->len = sizeof("text/html") - 1;
da9a3b14312d nginx 0.1.38
Igor Sysoev <http://sysoev.ru>
parents: 62
diff changeset
1146 type->data = (u_char *) "text/html";
50
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1147 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1148
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1149 value = cf->args->elts;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1150
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1151 for (i = 1; i < cf->args->nelts; i++) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1152
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1153 if (ngx_strcmp(value[i].data, "text/html") == 0) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1154 continue;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1155 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1156
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1157 type = ngx_array_push(gcf->types);
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1158 if (type == NULL) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1159 return NGX_CONF_ERROR;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1160 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1161
76
da9a3b14312d nginx 0.1.38
Igor Sysoev <http://sysoev.ru>
parents: 62
diff changeset
1162 type->len = value[i].len;
50
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1163
76
da9a3b14312d nginx 0.1.38
Igor Sysoev <http://sysoev.ru>
parents: 62
diff changeset
1164 type->data = ngx_palloc(cf->pool, type->len + 1);
da9a3b14312d nginx 0.1.38
Igor Sysoev <http://sysoev.ru>
parents: 62
diff changeset
1165 if (type->data == NULL) {
50
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1166 return NGX_CONF_ERROR;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1167 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1168
76
da9a3b14312d nginx 0.1.38
Igor Sysoev <http://sysoev.ru>
parents: 62
diff changeset
1169 ngx_cpystrn(type->data, value[i].data, type->len + 1);
50
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1170 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1171
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1172 return NGX_CONF_OK;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1173 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1174
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1175
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1176 static char *
76
da9a3b14312d nginx 0.1.38
Igor Sysoev <http://sysoev.ru>
parents: 62
diff changeset
1177 ngx_http_gzip_window(ngx_conf_t *cf, void *post, void *data)
50
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1178 {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1179 int *np = data;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1180
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1181 int wbits, wsize;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1182
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1183 wbits = 15;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1184
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1185 for (wsize = 32 * 1024; wsize > 256; wsize >>= 1) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1186
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1187 if (wsize == *np) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1188 *np = wbits;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1189
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1190 return NGX_CONF_OK;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1191 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1192
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1193 wbits--;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1194 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1195
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1196 return "must be 512, 1k, 2k, 4k, 8k, 16k, or 32k";
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1197 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1198
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1199
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1200 static char *
76
da9a3b14312d nginx 0.1.38
Igor Sysoev <http://sysoev.ru>
parents: 62
diff changeset
1201 ngx_http_gzip_hash(ngx_conf_t *cf, void *post, void *data)
50
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1202 {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1203 int *np = data;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1204
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1205 int memlevel, hsize;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1206
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1207 memlevel = 9;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1208
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1209 for (hsize = 128 * 1024; hsize > 256; hsize >>= 1) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1210
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1211 if (hsize == *np) {
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1212 *np = memlevel;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1213
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1214 return NGX_CONF_OK;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1215 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1216
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1217 memlevel--;
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1218 }
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1219
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1220 return "must be 512, 1k, 2k, 4k, 8k, 16k, 32k, 64k, or 128k";
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1221 }