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annotate src/http/modules/ngx_http_gzip_static_module.c @ 2213:8cc552c91cd2
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author | Igor Sysoev <igor@sysoev.ru> |
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date | Tue, 26 Aug 2008 17:23:27 +0000 |
parents | 25add486e7aa |
children | 8564129d49b6 |
rev | line source |
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
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4 */ |
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7 #include <ngx_config.h> |
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8 #include <ngx_core.h> |
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9 #include <ngx_http.h> |
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12 typedef struct { |
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13 ngx_flag_t enable; |
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14 } ngx_http_gzip_static_conf_t; |
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15 |
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16 |
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17 static ngx_int_t ngx_http_gzip_static_handler(ngx_http_request_t *r); |
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18 static void *ngx_http_gzip_static_create_conf(ngx_conf_t *cf); |
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19 static char *ngx_http_gzip_static_merge_conf(ngx_conf_t *cf, void *parent, |
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20 void *child); |
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21 static ngx_int_t ngx_http_gzip_static_init(ngx_conf_t *cf); |
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22 |
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24 static ngx_command_t ngx_http_gzip_static_commands[] = { |
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25 |
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26 { ngx_string("gzip_static"), |
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27 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, |
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28 ngx_conf_set_flag_slot, |
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29 NGX_HTTP_LOC_CONF_OFFSET, |
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30 offsetof(ngx_http_gzip_static_conf_t, enable), |
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31 NULL }, |
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32 |
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33 ngx_null_command |
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34 }; |
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35 |
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36 |
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37 ngx_http_module_t ngx_http_gzip_static_module_ctx = { |
509 | 38 NULL, /* preconfiguration */ |
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39 ngx_http_gzip_static_init, /* postconfiguration */ |
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40 |
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41 NULL, /* create main configuration */ |
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42 NULL, /* init main configuration */ |
577 | 43 |
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44 NULL, /* create server configuration */ |
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45 NULL, /* merge server configuration */ |
577 | 46 |
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47 ngx_http_gzip_static_create_conf, /* create location configuration */ |
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48 ngx_http_gzip_static_merge_conf /* merge location configuration */ |
577 | 49 }; |
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50 |
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51 |
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52 ngx_module_t ngx_http_gzip_static_module = { |
509 | 53 NGX_MODULE_V1, |
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54 &ngx_http_gzip_static_module_ctx, /* module context */ |
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55 ngx_http_gzip_static_commands, /* module directives */ |
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56 NGX_HTTP_MODULE, /* module type */ |
541 | 57 NULL, /* init master */ |
681 | 58 NULL, /* init module */ |
541 | 59 NULL, /* init process */ |
60 NULL, /* init thread */ | |
61 NULL, /* exit thread */ | |
62 NULL, /* exit process */ | |
63 NULL, /* exit master */ | |
64 NGX_MODULE_V1_PADDING | |
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65 }; |
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66 |
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67 |
509 | 68 static ngx_int_t |
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69 ngx_http_gzip_static_handler(ngx_http_request_t *r) |
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70 { |
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71 u_char *p; |
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72 size_t root; |
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73 ngx_str_t path; |
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74 ngx_int_t rc; |
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75 ngx_uint_t level; |
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76 ngx_log_t *log; |
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77 ngx_buf_t *b; |
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78 ngx_chain_t out; |
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79 ngx_table_elt_t *h; |
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80 ngx_open_file_info_t of; |
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81 ngx_http_core_loc_conf_t *clcf; |
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82 ngx_http_gzip_static_conf_t *gzcf; |
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83 |
645 | 84 if (!(r->method & (NGX_HTTP_GET|NGX_HTTP_HEAD))) { |
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85 return NGX_DECLINED; |
639 | 86 } |
87 | |
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88 if (r->uri.data[r->uri.len - 1] == '/') { |
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89 return NGX_DECLINED; |
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90 } |
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91 |
489 | 92 /* TODO: Win32 */ |
93 if (r->zero_in_uri) { | |
94 return NGX_DECLINED; | |
95 } | |
96 | |
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97 gzcf = ngx_http_get_module_loc_conf(r, ngx_http_gzip_static_module); |
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98 |
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99 if (!gzcf->enable || ngx_http_gzip_ok(r) != NGX_OK) { |
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100 return NGX_DECLINED; |
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101 } |
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102 |
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103 log = r->connection->log; |
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104 |
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105 p = ngx_http_map_uri_to_path(r, &path, &root, sizeof(".gz") - 1); |
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106 if (p == NULL) { |
557 | 107 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
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108 } |
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109 |
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110 *p++ = '.'; |
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111 *p++ = 'g'; |
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112 *p++ = 'z'; |
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113 *p = '\0'; |
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114 |
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115 path.len = p - path.data; |
1454 | 116 |
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117 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, log, 0, |
557 | 118 "http filename: \"%s\"", path.data); |
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119 |
1454 | 120 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); |
563 | 121 |
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122 ngx_memzero(&of, sizeof(ngx_open_file_info_t)); |
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123 |
2129 | 124 of.directio = clcf->directio; |
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125 of.valid = clcf->open_file_cache_valid; |
1772 | 126 of.min_uses = clcf->open_file_cache_min_uses; |
1454 | 127 of.errors = clcf->open_file_cache_errors; |
1457 | 128 of.events = clcf->open_file_cache_events; |
1454 | 129 |
1799 | 130 if (ngx_open_cached_file(clcf->open_file_cache, &path, &of, r->pool) |
131 != NGX_OK) | |
132 { | |
1454 | 133 switch (of.err) { |
134 | |
135 case 0: | |
136 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
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137 |
1454 | 138 case NGX_ENOENT: |
139 case NGX_ENOTDIR: | |
140 case NGX_ENAMETOOLONG: | |
141 | |
1790
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142 return NGX_DECLINED; |
148
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143 |
1454 | 144 case NGX_EACCES: |
145 | |
170
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146 level = NGX_LOG_ERR; |
1454 | 147 break; |
148
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148 |
1454 | 149 default: |
150 | |
170
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151 level = NGX_LOG_CRIT; |
1454 | 152 break; |
148
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153 } |
170
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154 |
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155 ngx_log_error(level, log, of.err, |
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156 ngx_open_file_n " \"%s\" failed", path.data); |
170
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157 |
1799 | 158 return NGX_DECLINED; |
148
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159 } |
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160 |
1696 | 161 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, log, 0, "http static fd: %d", of.fd); |
148
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162 |
1454 | 163 if (of.is_dir) { |
201
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164 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, log, 0, "http dir"); |
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165 return NGX_DECLINED; |
148
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166 } |
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167 |
461 | 168 #if !(NGX_WIN32) /* the not regular files are probably Unix specific */ |
176
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169 |
1454 | 170 if (!of.is_file) { |
201
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171 ngx_log_error(NGX_LOG_CRIT, log, ngx_errno, |
557 | 172 "\"%s\" is not a regular file", path.data); |
176
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173 |
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174 return NGX_HTTP_NOT_FOUND; |
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175 } |
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176 |
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177 #endif |
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178 |
2087
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179 r->root_tested = 1; |
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180 |
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181 rc = ngx_http_discard_request_body(r); |
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182 |
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183 if (rc != NGX_OK) { |
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184 return rc; |
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185 } |
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186 |
509 | 187 log->action = "sending response to client"; |
148
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188 |
201
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189 r->headers_out.status = NGX_HTTP_OK; |
1454 | 190 r->headers_out.content_length_n = of.size; |
191 r->headers_out.last_modified_time = of.mtime; | |
201
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192 |
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193 if (ngx_http_set_content_type(r) != NGX_OK) { |
200
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nginx-0.0.1-2003-11-28-20:41:47 import
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199
diff
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194 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
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199
diff
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195 } |
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199
diff
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196 |
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197 h = ngx_list_push(&r->headers_out.headers); |
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198 if (h == NULL) { |
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199 return NGX_ERROR; |
583 | 200 } |
201 | |
1790
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202 h->hash = 1; |
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203 h->key.len = sizeof("Content-Encoding") - 1; |
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204 h->key.data = (u_char *) "Content-Encoding"; |
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205 h->value.len = sizeof("gzip") - 1; |
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206 h->value.data = (u_char *) "gzip"; |
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207 |
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208 r->headers_out.content_encoding = h; |
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209 |
577 | 210 /* we need to allocate all before the header would be sent */ |
1
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211 |
577 | 212 b = ngx_pcalloc(r->pool, sizeof(ngx_buf_t)); |
213 if (b == NULL) { | |
214 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
215 } | |
26
53cb81681040
nginx-0.0.1-2002-12-15-09:25:09 import
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24
diff
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|
216 |
577 | 217 b->file = ngx_pcalloc(r->pool, sizeof(ngx_file_t)); |
218 if (b->file == NULL) { | |
219 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
220 } | |
403
ea3113b181d1
nginx-0.0.9-2004-07-28-23:21:26 import
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400
diff
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|
221 |
96
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
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89
diff
changeset
|
222 rc = ngx_http_send_header(r); |
143
5526213be452
nginx-0.0.1-2003-10-10-19:10:50 import
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142
diff
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|
223 |
585 | 224 if (rc == NGX_ERROR || rc > NGX_OK || r->header_only) { |
143
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142
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225 return rc; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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96
diff
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|
226 } |
96
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227 |
343
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334
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|
228 b->file_pos = 0; |
1454 | 229 b->file_last = of.size; |
1
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230 |
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231 b->in_file = b->file_last ? 1 : 0; |
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232 b->last_buf = 1; |
577 | 233 b->last_in_chain = 1; |
234 | |
1696 | 235 b->file->fd = of.fd; |
557 | 236 b->file->name = path; |
343
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334
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|
237 b->file->log = log; |
6bdf858bff8c
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|
238 |
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334
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|
239 out.buf = b; |
153
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nginx-0.0.1-2003-10-21-20:49:56 import
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148
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|
240 out.next = NULL; |
c71aeb75c071
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148
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|
241 |
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148
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242 return ngx_http_output_filter(r, &out); |
1
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243 } |
148
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244 |
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245 |
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246 static void * |
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247 ngx_http_gzip_static_create_conf(ngx_conf_t *cf) |
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248 { |
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249 ngx_http_gzip_static_conf_t *conf; |
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250 |
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251 conf = ngx_palloc(cf->pool, sizeof(ngx_http_gzip_static_conf_t)); |
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252 if (conf == NULL) { |
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253 return NGX_CONF_ERROR; |
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254 } |
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255 |
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256 conf->enable = NGX_CONF_UNSET; |
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257 |
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258 return conf; |
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259 } |
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260 |
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261 |
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262 static char * |
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263 ngx_http_gzip_static_merge_conf(ngx_conf_t *cf, void *parent, void *child) |
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264 { |
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265 ngx_http_gzip_static_conf_t *prev = parent; |
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266 ngx_http_gzip_static_conf_t *conf = child; |
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267 |
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268 ngx_conf_merge_value(conf->enable, prev->enable, 0); |
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269 |
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270 return NGX_CONF_OK; |
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271 } |
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272 |
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273 |
509 | 274 static ngx_int_t |
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275 ngx_http_gzip_static_init(ngx_conf_t *cf) |
148
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276 { |
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277 ngx_http_handler_pt *h; |
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278 ngx_http_core_main_conf_t *cmcf; |
396
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279 |
681 | 280 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module); |
577 | 281 |
501 | 282 h = ngx_array_push(&cmcf->phases[NGX_HTTP_CONTENT_PHASE].handlers); |
201
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nginx-0.0.1-2003-11-30-23:03:18 import
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283 if (h == NULL) { |
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nginx-0.0.1-2003-11-30-23:03:18 import
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284 return NGX_ERROR; |
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nginx-0.0.1-2003-11-30-23:03:18 import
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285 } |
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nginx-0.0.1-2003-11-30-23:03:18 import
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286 |
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287 *h = ngx_http_gzip_static_handler; |
148
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288 |
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289 return NGX_OK; |
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290 } |