Mercurial > hg > nginx
annotate src/http/modules/ngx_http_log_module.c @ 1074:8164f479b362
fix "access_log off"
author | Igor Sysoev <igor@sysoev.ru> |
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date | Wed, 24 Jan 2007 09:15:25 +0000 |
parents | bd4202f92581 |
children | 6002e0253221 |
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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10 #include <nginx.h> |
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12 |
880 | 13 typedef struct ngx_http_log_op_s ngx_http_log_op_t; |
14 | |
15 typedef u_char *(*ngx_http_log_op_run_pt) (ngx_http_request_t *r, u_char *buf, | |
16 ngx_http_log_op_t *op); | |
17 | |
18 typedef size_t (*ngx_http_log_op_getlen_pt) (ngx_http_request_t *r, | |
19 uintptr_t data); | |
20 | |
21 | |
22 struct ngx_http_log_op_s { | |
23 size_t len; | |
24 ngx_http_log_op_getlen_pt getlen; | |
25 ngx_http_log_op_run_pt run; | |
26 uintptr_t data; | |
27 }; | |
28 | |
573 | 29 |
30 typedef struct { | |
31 ngx_str_t name; | |
32 ngx_array_t *ops; /* array of ngx_http_log_op_t */ | |
33 } ngx_http_log_fmt_t; | |
34 | |
657 | 35 |
573 | 36 typedef struct { |
37 ngx_array_t formats; /* array of ngx_http_log_fmt_t */ | |
38 ngx_uint_t combined_used; /* unsigned combined_used:1 */ | |
39 } ngx_http_log_main_conf_t; | |
40 | |
657 | 41 |
573 | 42 typedef struct { |
43 ngx_open_file_t *file; | |
633 | 44 time_t disk_full_time; |
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45 time_t error_log_time; |
573 | 46 ngx_array_t *ops; /* array of ngx_http_log_op_t */ |
47 } ngx_http_log_t; | |
48 | |
657 | 49 |
573 | 50 typedef struct { |
51 ngx_array_t *logs; /* array of ngx_http_log_t */ | |
52 ngx_uint_t off; /* unsigned off:1 */ | |
53 } ngx_http_log_loc_conf_t; | |
54 | |
55 | |
56 typedef struct { | |
57 ngx_str_t name; | |
58 size_t len; | |
59 ngx_http_log_op_run_pt run; | |
60 } ngx_http_log_var_t; | |
61 | |
62 | |
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63 static void ngx_http_log_write(ngx_http_request_t *r, ngx_http_log_t *log, |
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64 u_char *buf, size_t len); |
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65 |
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66 static u_char *ngx_http_log_connection(ngx_http_request_t *r, u_char *buf, |
497 | 67 ngx_http_log_op_t *op); |
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68 static u_char *ngx_http_log_pipe(ngx_http_request_t *r, u_char *buf, |
497 | 69 ngx_http_log_op_t *op); |
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70 static u_char *ngx_http_log_time(ngx_http_request_t *r, u_char *buf, |
497 | 71 ngx_http_log_op_t *op); |
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72 static u_char *ngx_http_log_msec(ngx_http_request_t *r, u_char *buf, |
497 | 73 ngx_http_log_op_t *op); |
74 static u_char *ngx_http_log_request_time(ngx_http_request_t *r, u_char *buf, | |
75 ngx_http_log_op_t *op); | |
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76 static u_char *ngx_http_log_status(ngx_http_request_t *r, u_char *buf, |
497 | 77 ngx_http_log_op_t *op); |
573 | 78 static u_char *ngx_http_log_bytes_sent(ngx_http_request_t *r, u_char *buf, |
497 | 79 ngx_http_log_op_t *op); |
577 | 80 static u_char *ngx_http_log_body_bytes_sent(ngx_http_request_t *r, |
573 | 81 u_char *buf, ngx_http_log_op_t *op); |
475 | 82 static u_char *ngx_http_log_request_length(ngx_http_request_t *r, u_char *buf, |
497 | 83 ngx_http_log_op_t *op); |
479 | 84 |
501 | 85 static ngx_int_t ngx_http_log_variable_compile(ngx_conf_t *cf, |
86 ngx_http_log_op_t *op, ngx_str_t *value); | |
87 static size_t ngx_http_log_variable_getlen(ngx_http_request_t *r, | |
88 uintptr_t data); | |
89 static u_char *ngx_http_log_variable(ngx_http_request_t *r, u_char *buf, | |
90 ngx_http_log_op_t *op); | |
91 | |
92 | |
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93 static void *ngx_http_log_create_main_conf(ngx_conf_t *cf); |
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94 static void *ngx_http_log_create_loc_conf(ngx_conf_t *cf); |
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95 static char *ngx_http_log_merge_loc_conf(ngx_conf_t *cf, void *parent, |
497 | 96 void *child); |
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97 static char *ngx_http_log_set_log(ngx_conf_t *cf, ngx_command_t *cmd, |
497 | 98 void *conf); |
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99 static char *ngx_http_log_set_format(ngx_conf_t *cf, ngx_command_t *cmd, |
497 | 100 void *conf); |
573 | 101 static char *ngx_http_log_compile_format(ngx_conf_t *cf, |
102 ngx_array_t *ops, ngx_array_t *args, ngx_uint_t s); | |
103 static ngx_int_t ngx_http_log_init(ngx_conf_t *cf); | |
99
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104 |
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105 |
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106 static ngx_command_t ngx_http_log_commands[] = { |
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107 |
497 | 108 { ngx_string("log_format"), |
109 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_2MORE, | |
110 ngx_http_log_set_format, | |
111 NGX_HTTP_MAIN_CONF_OFFSET, | |
112 0, | |
113 NULL }, | |
99
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114 |
497 | 115 { ngx_string("access_log"), |
645 | 116 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF |
117 |NGX_CONF_TAKE123, | |
497 | 118 ngx_http_log_set_log, |
119 NGX_HTTP_LOC_CONF_OFFSET, | |
120 0, | |
121 NULL }, | |
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122 |
497 | 123 ngx_null_command |
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124 }; |
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125 |
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126 |
667 | 127 static ngx_http_module_t ngx_http_log_module_ctx = { |
880 | 128 NULL, /* preconfiguration */ |
573 | 129 ngx_http_log_init, /* postconfiguration */ |
177
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130 |
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131 ngx_http_log_create_main_conf, /* create main configuration */ |
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132 NULL, /* init main configuration */ |
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133 |
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134 NULL, /* create server configuration */ |
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135 NULL, /* merge server configuration */ |
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136 |
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137 ngx_http_log_create_loc_conf, /* create location configration */ |
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138 ngx_http_log_merge_loc_conf /* merge location configration */ |
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139 }; |
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140 |
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141 |
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142 ngx_module_t ngx_http_log_module = { |
509 | 143 NGX_MODULE_V1, |
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144 &ngx_http_log_module_ctx, /* module context */ |
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145 ngx_http_log_commands, /* module directives */ |
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146 NGX_HTTP_MODULE, /* module type */ |
541 | 147 NULL, /* init master */ |
573 | 148 NULL, /* init module */ |
541 | 149 NULL, /* init process */ |
150 NULL, /* init thread */ | |
151 NULL, /* exit thread */ | |
152 NULL, /* exit process */ | |
153 NULL, /* exit master */ | |
154 NGX_MODULE_V1_PADDING | |
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155 }; |
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156 |
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157 |
1074 | 158 static ngx_str_t ngx_http_access_log = ngx_string(NGX_HTTP_LOG_PATH); |
573 | 159 |
160 | |
161 static ngx_str_t ngx_http_combined_fmt = | |
581 | 162 ngx_string("$remote_addr - $remote_user [$time_local] " |
577 | 163 "\"$request\" $status $body_bytes_sent " |
573 | 164 "\"$http_referer\" \"$http_user_agent\""); |
119
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166 |
573 | 167 static ngx_http_log_var_t ngx_http_log_vars[] = { |
168 { ngx_string("connection"), NGX_ATOMIC_T_LEN, ngx_http_log_connection }, | |
169 { ngx_string("pipe"), 1, ngx_http_log_pipe }, | |
581 | 170 { ngx_string("time_local"), sizeof("28/Sep/1970:12:00:00 +0600") - 1, |
573 | 171 ngx_http_log_time }, |
172 { ngx_string("msec"), NGX_TIME_T_LEN + 4, ngx_http_log_msec }, | |
173 { ngx_string("request_time"), NGX_TIME_T_LEN, ngx_http_log_request_time }, | |
174 { ngx_string("status"), 3, ngx_http_log_status }, | |
175 { ngx_string("bytes_sent"), NGX_OFF_T_LEN, ngx_http_log_bytes_sent }, | |
577 | 176 { ngx_string("body_bytes_sent"), NGX_OFF_T_LEN, |
177 ngx_http_log_body_bytes_sent }, | |
573 | 178 { ngx_string("apache_bytes_sent"), NGX_OFF_T_LEN, |
577 | 179 ngx_http_log_body_bytes_sent }, |
573 | 180 { ngx_string("request_length"), NGX_SIZE_T_LEN, |
181 ngx_http_log_request_length }, | |
182 | |
183 { ngx_null_string, 0, NULL } | |
184 }; | |
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186 |
497 | 187 ngx_int_t |
188 ngx_http_log_handler(ngx_http_request_t *r) | |
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189 { |
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190 u_char *line, *p; |
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191 size_t len; |
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192 ngx_uint_t i, l; |
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193 ngx_http_log_t *log; |
571 | 194 ngx_open_file_t *file; |
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195 ngx_http_log_op_t *op; |
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196 ngx_http_log_loc_conf_t *lcf; |
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197 |
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198 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
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199 "http log handler"); |
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200 |
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201 lcf = ngx_http_get_module_loc_conf(r, ngx_http_log_module); |
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202 |
427
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203 if (lcf->off) { |
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204 return NGX_OK; |
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205 } |
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206 |
176
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207 log = lcf->logs->elts; |
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208 for (l = 0; l < lcf->logs->nelts; l++) { |
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209 |
633 | 210 if (ngx_time() == log[l].disk_full_time) { |
211 | |
212 /* | |
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213 * on FreeBSD writing to a full filesystem with enabled softupdates |
633 | 214 * may block process for much longer time than writing to non-full |
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215 * filesystem, so we skip writing to a log for one second |
633 | 216 */ |
217 | |
218 continue; | |
219 } | |
220 | |
176
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221 len = 0; |
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222 op = log[l].ops->elts; |
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223 for (i = 0; i < log[l].ops->nelts; i++) { |
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224 if (op[i].len == 0) { |
479 | 225 len += op[i].getlen(r, op[i].data); |
176
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226 |
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227 } else { |
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228 len += op[i].len; |
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229 } |
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230 } |
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231 |
571 | 232 len += NGX_LINEFEED_SIZE; |
233 | |
234 file = log[l].file; | |
235 | |
236 if (file->buffer) { | |
237 | |
238 if (len > (size_t) (file->last - file->pos)) { | |
239 | |
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240 ngx_http_log_write(r, &log[l], file->buffer, |
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241 file->pos - file->buffer); |
571 | 242 |
243 file->pos = file->buffer; | |
244 } | |
245 | |
246 if (len <= (size_t) (file->last - file->pos)) { | |
247 | |
248 p = file->pos; | |
249 | |
250 for (i = 0; i < log[l].ops->nelts; i++) { | |
251 p = op[i].run(r, p, &op[i]); | |
252 } | |
253 | |
254 ngx_linefeed(p); | |
255 | |
256 file->pos = p; | |
257 | |
258 continue; | |
259 } | |
260 } | |
26
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261 |
501 | 262 line = ngx_palloc(r->pool, len); |
263 if (line == NULL) { | |
473 | 264 return NGX_ERROR; |
265 } | |
266 | |
176
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267 p = line; |
26
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268 |
176
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269 for (i = 0; i < log[l].ops->nelts; i++) { |
479 | 270 p = op[i].run(r, p, &op[i]); |
176
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271 } |
99
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272 |
571 | 273 ngx_linefeed(p); |
274 | |
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275 ngx_http_log_write(r, &log[l], line, p - line); |
176
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276 } |
26
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277 |
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278 return NGX_OK; |
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279 } |
99
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280 |
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281 |
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282 static void |
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283 ngx_http_log_write(ngx_http_request_t *r, ngx_http_log_t *log, u_char *buf, |
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284 size_t len) |
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285 { |
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286 time_t now; |
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287 ssize_t n; |
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288 ngx_err_t err; |
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289 |
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290 n = ngx_write_fd(log->file->fd, buf, len); |
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291 |
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292 if (n == (ssize_t) len) { |
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293 return; |
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294 } |
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295 |
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296 now = ngx_time(); |
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297 |
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298 if (n == -1) { |
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299 err = ngx_errno; |
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300 |
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301 if (err == NGX_ENOSPC) { |
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302 log->disk_full_time = now; |
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303 } |
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304 |
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305 if (now - log->error_log_time > 60) { |
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306 ngx_log_error(NGX_LOG_ALERT, r->connection->log, err, |
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307 ngx_write_fd_n " to \"%V\" failed", |
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308 &log->file->name); |
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309 |
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310 log->error_log_time = now; |
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311 } |
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312 |
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313 return; |
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314 } |
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315 |
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316 if (now - log->error_log_time > 60) { |
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317 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0, |
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318 ngx_write_fd_n " to \"%V\" was incomplete: %z of %uz", |
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319 &log->file->name, n, len); |
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320 |
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321 log->error_log_time = now; |
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322 } |
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323 } |
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324 |
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325 |
497 | 326 static u_char * |
327 ngx_http_log_copy_short(ngx_http_request_t *r, u_char *buf, | |
328 ngx_http_log_op_t *op) | |
479 | 329 { |
330 size_t len; | |
331 uintptr_t data; | |
332 | |
333 len = op->len; | |
334 data = op->data; | |
335 | |
336 while (len--) { | |
337 *buf++ = (u_char) (data & 0xff); | |
338 data >>= 8; | |
339 } | |
340 | |
341 return buf; | |
342 } | |
343 | |
344 | |
497 | 345 static u_char * |
346 ngx_http_log_copy_long(ngx_http_request_t *r, u_char *buf, | |
347 ngx_http_log_op_t *op) | |
479 | 348 { |
349 return ngx_cpymem(buf, (u_char *) op->data, op->len); | |
350 } | |
351 | |
352 | |
497 | 353 static u_char * |
354 ngx_http_log_connection(ngx_http_request_t *r, u_char *buf, | |
355 ngx_http_log_op_t *op) | |
176
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356 { |
455 | 357 return ngx_sprintf(buf, "%ui", r->connection->number); |
176
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358 } |
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359 |
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360 |
497 | 361 static u_char * |
362 ngx_http_log_pipe(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op) | |
176
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363 { |
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364 if (r->pipeline) { |
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365 *buf = 'p'; |
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366 } else { |
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367 *buf = '.'; |
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368 } |
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369 |
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370 return buf + 1; |
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371 } |
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372 |
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373 |
497 | 374 static u_char * |
375 ngx_http_log_time(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op) | |
176
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376 { |
178
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377 return ngx_cpymem(buf, ngx_cached_http_log_time.data, |
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378 ngx_cached_http_log_time.len); |
176
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379 } |
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380 |
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381 |
497 | 382 static u_char * |
383 ngx_http_log_msec(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op) | |
409
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384 { |
563 | 385 ngx_time_t *tp; |
409
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386 |
563 | 387 tp = ngx_timeofday(); |
409
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388 |
563 | 389 return ngx_sprintf(buf, "%T.%03M", tp->sec, tp->msec); |
409
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390 } |
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391 |
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392 |
497 | 393 static u_char * |
394 ngx_http_log_request_time(ngx_http_request_t *r, u_char *buf, | |
395 ngx_http_log_op_t *op) | |
396 { | |
397 time_t elapsed; | |
398 | |
399 elapsed = ngx_time() - r->start_time; | |
400 | |
401 return ngx_sprintf(buf, "%T", elapsed); | |
402 } | |
403 | |
404 | |
405 static u_char * | |
406 ngx_http_log_status(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op) | |
176
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407 { |
455 | 408 return ngx_sprintf(buf, "%ui", |
409 r->err_status ? r->err_status : r->headers_out.status); | |
176
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410 } |
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411 |
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412 |
497 | 413 static u_char * |
573 | 414 ngx_http_log_bytes_sent(ngx_http_request_t *r, u_char *buf, |
415 ngx_http_log_op_t *op) | |
176
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416 { |
455 | 417 return ngx_sprintf(buf, "%O", r->connection->sent); |
176
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418 } |
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419 |
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420 |
497 | 421 static u_char * |
577 | 422 ngx_http_log_body_bytes_sent(ngx_http_request_t *r, u_char *buf, |
497 | 423 ngx_http_log_op_t *op) |
210
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424 { |
497 | 425 off_t length; |
426 | |
427 length = r->connection->sent - r->header_size; | |
428 | |
429 if (length > 0) { | |
430 return ngx_sprintf(buf, "%O", length); | |
431 } | |
432 | |
433 *buf = '0'; | |
434 | |
435 return buf + 1; | |
210
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436 } |
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437 |
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438 |
497 | 439 static u_char * |
440 ngx_http_log_request_length(ngx_http_request_t *r, u_char *buf, | |
441 ngx_http_log_op_t *op) | |
475 | 442 { |
663 | 443 return ngx_sprintf(buf, "%O", r->request_length); |
475 | 444 } |
445 | |
446 | |
497 | 447 static ngx_int_t |
501 | 448 ngx_http_log_variable_compile(ngx_conf_t *cf, ngx_http_log_op_t *op, |
449 ngx_str_t *value) | |
450 { | |
509 | 451 ngx_int_t index; |
501 | 452 |
509 | 453 index = ngx_http_get_variable_index(cf, value); |
454 if (index == NGX_ERROR) { | |
501 | 455 return NGX_ERROR; |
456 } | |
457 | |
458 op->len = 0; | |
459 op->getlen = ngx_http_log_variable_getlen; | |
460 op->run = ngx_http_log_variable; | |
509 | 461 op->data = index; |
501 | 462 |
463 return NGX_OK; | |
464 } | |
465 | |
466 | |
467 static size_t | |
468 ngx_http_log_variable_getlen(ngx_http_request_t *r, uintptr_t data) | |
469 { | |
470 ngx_http_variable_value_t *value; | |
471 | |
472 value = ngx_http_get_indexed_variable(r, data); | |
473 | |
573 | 474 if (value == NULL || value->not_found) { |
501 | 475 return 1; |
476 } | |
477 | |
573 | 478 return value->len; |
501 | 479 } |
480 | |
481 | |
482 static u_char * | |
483 ngx_http_log_variable(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op) | |
484 { | |
485 ngx_http_variable_value_t *value; | |
486 | |
487 value = ngx_http_get_indexed_variable(r, op->data); | |
488 | |
573 | 489 if (value == NULL || value->not_found) { |
501 | 490 *buf = '-'; |
491 return buf + 1; | |
492 } | |
493 | |
573 | 494 return ngx_cpymem(buf, value->data, value->len); |
501 | 495 } |
496 | |
497 | |
497 | 498 static void * |
499 ngx_http_log_create_main_conf(ngx_conf_t *cf) | |
176
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500 { |
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501 ngx_http_log_main_conf_t *conf; |
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502 |
573 | 503 ngx_http_log_fmt_t *fmt; |
176
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504 |
501 | 505 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_log_main_conf_t)); |
506 if (conf == NULL) { | |
176
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507 return NGX_CONF_ERROR; |
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508 } |
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509 |
497 | 510 if (ngx_array_init(&conf->formats, cf->pool, 4, sizeof(ngx_http_log_fmt_t)) |
573 | 511 != NGX_OK) |
497 | 512 { |
513 return NGX_CONF_ERROR; | |
514 } | |
176
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515 |
573 | 516 fmt = ngx_array_push(&conf->formats); |
517 if (fmt == NULL) { | |
176
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518 return NGX_CONF_ERROR; |
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519 } |
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520 |
573 | 521 fmt->name.len = sizeof("combined") - 1; |
522 fmt->name.data = (u_char *) "combined"; | |
176
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523 |
573 | 524 fmt->ops = ngx_array_create(cf->pool, 16, sizeof(ngx_http_log_op_t)); |
525 if (fmt->ops == NULL) { | |
569 | 526 return NGX_CONF_ERROR; |
176
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527 } |
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528 |
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529 return conf; |
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530 } |
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531 |
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532 |
497 | 533 static void * |
534 ngx_http_log_create_loc_conf(ngx_conf_t *cf) | |
176
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535 { |
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536 ngx_http_log_loc_conf_t *conf; |
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537 |
501 | 538 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_log_loc_conf_t)); |
539 if (conf == NULL) { | |
427
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540 return NGX_CONF_ERROR; |
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541 } |
99
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542 |
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543 return conf; |
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544 } |
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545 |
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546 |
497 | 547 static char * |
548 ngx_http_log_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child) | |
99
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549 { |
176
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550 ngx_http_log_loc_conf_t *prev = parent; |
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551 ngx_http_log_loc_conf_t *conf = child; |
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552 |
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553 ngx_http_log_t *log; |
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554 ngx_http_log_fmt_t *fmt; |
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555 ngx_http_log_main_conf_t *lmcf; |
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556 |
1074 | 557 if (conf->logs || conf->off) { |
558 return NGX_CONF_OK; | |
559 } | |
427
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560 |
1074 | 561 *conf = *prev; |
176
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562 |
1074 | 563 if (conf->logs || conf->off) { |
564 return NGX_CONF_OK; | |
565 } | |
99
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566 |
1074 | 567 conf->logs = ngx_array_create(cf->pool, 2, sizeof(ngx_http_log_t)); |
568 if (conf->logs == NULL) { | |
569 return NGX_CONF_ERROR; | |
570 } | |
176
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571 |
1074 | 572 log = ngx_array_push(conf->logs); |
573 if (log == NULL) { | |
574 return NGX_CONF_ERROR; | |
575 } | |
176
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576 |
1074 | 577 log->file = ngx_conf_open_file(cf->cycle, &ngx_http_access_log); |
578 if (log->file == NULL) { | |
579 return NGX_CONF_ERROR; | |
580 } | |
176
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581 |
1074 | 582 log->disk_full_time = 0; |
583 log->error_log_time = 0; | |
427
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584 |
1074 | 585 lmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_log_module); |
586 fmt = lmcf->formats.elts; | |
587 | |
588 /* the default "combined" format */ | |
589 log->ops = fmt[0].ops; | |
590 lmcf->combined_used = 1; | |
99
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591 |
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592 return NGX_CONF_OK; |
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593 } |
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594 |
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595 |
497 | 596 static char * |
597 ngx_http_log_set_log(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
99
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598 { |
176
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599 ngx_http_log_loc_conf_t *llcf = conf; |
99
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600 |
571 | 601 ssize_t buf; |
290
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602 ngx_uint_t i; |
176
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603 ngx_str_t *value, name; |
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604 ngx_http_log_t *log; |
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605 ngx_http_log_fmt_t *fmt; |
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606 ngx_http_log_main_conf_t *lmcf; |
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607 |
427
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608 value = cf->args->elts; |
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609 |
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610 if (ngx_strcmp(value[1].data, "off") == 0) { |
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611 llcf->off = 1; |
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612 return NGX_CONF_OK; |
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613 } |
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614 |
176
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615 if (llcf->logs == NULL) { |
427
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616 llcf->logs = ngx_array_create(cf->pool, 2, sizeof(ngx_http_log_t)); |
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617 if (llcf->logs == NULL) { |
176
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618 return NGX_CONF_ERROR; |
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619 } |
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620 } |
99
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621 |
393
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622 lmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_log_module); |
99
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623 |
501 | 624 log = ngx_array_push(llcf->logs); |
625 if (log == NULL) { | |
176
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626 return NGX_CONF_ERROR; |
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627 } |
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628 |
501 | 629 log->file = ngx_conf_open_file(cf->cycle, &value[1]); |
630 if (log->file == NULL) { | |
176
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631 return NGX_CONF_ERROR; |
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632 } |
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633 |
633 | 634 log->disk_full_time = 0; |
1071
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log a failure of the writing to access_log once per minute
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635 log->error_log_time = 0; |
633 | 636 |
571 | 637 if (cf->args->nelts >= 3) { |
176
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638 name = value[2]; |
581 | 639 |
640 if (ngx_strcmp(name.data, "combined") == 0) { | |
641 lmcf->combined_used = 1; | |
642 } | |
643 | |
176
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644 } else { |
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645 name.len = sizeof("combined") - 1; |
292
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646 name.data = (u_char *) "combined"; |
573 | 647 lmcf->combined_used = 1; |
176
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648 } |
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649 |
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650 fmt = lmcf->formats.elts; |
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651 for (i = 0; i < lmcf->formats.nelts; i++) { |
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652 if (fmt[i].name.len == name.len |
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653 && ngx_strcasecmp(fmt[i].name.data, name.data) == 0) |
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654 { |
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655 log->ops = fmt[i].ops; |
571 | 656 goto buffer; |
176
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657 } |
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658 } |
100
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diff
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|
659 |
487 | 660 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
661 "unknown log format \"%V\"", &name); | |
571 | 662 return NGX_CONF_ERROR; |
487 | 663 |
571 | 664 buffer: |
665 | |
666 if (cf->args->nelts == 4) { | |
667 if (ngx_strncmp(value[3].data, "buffer=", 7) != 0) { | |
668 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
669 "invalid parameter \"%V\"", &value[3]); | |
670 return NGX_CONF_ERROR; | |
671 } | |
672 | |
673 name.len = value[3].len - 7; | |
674 name.data = value[3].data + 7; | |
675 | |
676 buf = ngx_parse_size(&name); | |
677 | |
678 if (buf == NGX_ERROR) { | |
679 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
680 "invalid parameter \"%V\"", &value[3]); | |
681 return NGX_CONF_ERROR; | |
682 } | |
683 | |
684 if (log->file->buffer && log->file->last - log->file->pos != buf) { | |
685 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
686 "access_log \"%V\" already defined " | |
687 "with different buffer size", &value[1]); | |
688 return NGX_CONF_ERROR; | |
689 } | |
690 | |
691 log->file->buffer = ngx_palloc(cf->pool, buf); | |
692 if (log->file->buffer == NULL) { | |
693 return NGX_CONF_ERROR; | |
694 } | |
695 | |
696 log->file->pos = log->file->buffer; | |
697 log->file->last = log->file->buffer + buf; | |
698 } | |
699 | |
700 return NGX_CONF_OK; | |
99
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701 } |
176
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702 |
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703 |
497 | 704 static char * |
705 ngx_http_log_set_format(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
176
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706 { |
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707 ngx_http_log_main_conf_t *lmcf = conf; |
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708 |
573 | 709 ngx_str_t *value; |
710 ngx_uint_t i; | |
711 ngx_http_log_fmt_t *fmt; | |
176
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712 |
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713 value = cf->args->elts; |
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714 |
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715 fmt = lmcf->formats.elts; |
573 | 716 for (i = 0; i < lmcf->formats.nelts; i++) { |
717 if (fmt[i].name.len == value[1].len | |
718 && ngx_strcmp(fmt[i].name.data, value[1].data) == 0) | |
176
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719 { |
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720 return "duplicate \"log_format\" name"; |
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721 } |
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722 } |
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|
723 |
501 | 724 fmt = ngx_array_push(&lmcf->formats); |
725 if (fmt == NULL) { | |
176
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726 return NGX_CONF_ERROR; |
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727 } |
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|
728 |
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|
729 fmt->name = value[1]; |
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|
730 |
573 | 731 fmt->ops = ngx_array_create(cf->pool, 16, sizeof(ngx_http_log_op_t)); |
501 | 732 if (fmt->ops == NULL) { |
176
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733 return NGX_CONF_ERROR; |
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734 } |
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735 |
573 | 736 return ngx_http_log_compile_format(cf, fmt->ops, cf->args, 2); |
737 } | |
738 | |
176
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739 |
573 | 740 static char * |
741 ngx_http_log_compile_format(ngx_conf_t *cf, ngx_array_t *ops, | |
742 ngx_array_t *args, ngx_uint_t s) | |
743 { | |
880 | 744 u_char *data, *p, ch; |
745 size_t i, len; | |
746 ngx_str_t *value, var; | |
747 ngx_uint_t bracket; | |
748 ngx_http_log_op_t *op; | |
749 ngx_http_log_var_t *v; | |
573 | 750 |
751 value = args->elts; | |
752 | |
753 for ( /* void */ ; s < args->nelts; s++) { | |
176
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|
754 |
880 | 755 for (i = 0; i < value[s].len; i++) { |
756 if (value[s].data[i] != '%') { | |
757 continue; | |
758 } | |
759 | |
760 ch = value[s].data[i + 1]; | |
761 | |
762 if ((ch >= 'A' && ch <= 'Z') | |
763 || (ch >= 'a' && ch <= 'z') | |
764 || ch == '{') | |
765 { | |
766 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
767 "the parameters in the \"%%name\" form are not supported, " | |
768 "use the \"$variable\" instead"); | |
769 | |
770 return NGX_CONF_ERROR; | |
771 } | |
772 } | |
773 | |
176
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774 i = 0; |
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775 |
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776 while (i < value[s].len) { |
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777 |
573 | 778 op = ngx_array_push(ops); |
501 | 779 if (op == NULL) { |
176
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780 return NGX_CONF_ERROR; |
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781 } |
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782 |
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783 data = &value[s].data[i]; |
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784 |
880 | 785 if (value[s].data[i] == '$') { |
569 | 786 |
787 if (++i == value[s].len) { | |
788 goto invalid; | |
789 } | |
790 | |
791 if (value[s].data[i] == '{') { | |
792 bracket = 1; | |
793 | |
794 if (++i == value[s].len) { | |
795 goto invalid; | |
796 } | |
797 | |
798 var.data = &value[s].data[i]; | |
799 | |
800 } else { | |
801 bracket = 0; | |
802 var.data = &value[s].data[i]; | |
803 } | |
804 | |
805 for (var.len = 0; i < value[s].len; i++, var.len++) { | |
806 ch = value[s].data[i]; | |
807 | |
808 if (ch == '}' && bracket) { | |
809 i++; | |
810 bracket = 0; | |
811 break; | |
812 } | |
813 | |
814 if ((ch >= 'A' && ch <= 'Z') | |
815 || (ch >= 'a' && ch <= 'z') | |
816 || (ch >= '0' && ch <= '9') | |
817 || ch == '_') | |
818 { | |
819 continue; | |
820 } | |
821 | |
176
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822 break; |
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823 } |
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824 |
569 | 825 if (bracket) { |
826 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
827 "the closing bracket in \"%V\" " | |
828 "variable is missing", &var); | |
829 return NGX_CONF_ERROR; | |
830 } | |
831 | |
832 if (var.len == 0) { | |
833 goto invalid; | |
834 } | |
835 | |
577 | 836 if (ngx_strncmp(var.data, "apache_bytes_sent", 17) == 0) { |
837 ngx_conf_log_error(NGX_LOG_WARN, cf, 0, | |
838 "use \"$body_bytes_sent\" instead of " | |
839 "\"$apache_bytes_sent\""); | |
840 } | |
841 | |
573 | 842 for (v = ngx_http_log_vars; v->name.len; v++) { |
843 | |
844 if (v->name.len == var.len | |
845 && ngx_strncmp(v->name.data, var.data, var.len) == 0) | |
846 { | |
847 op->len = v->len; | |
848 op->getlen = NULL; | |
849 op->run = v->run; | |
850 op->data = 0; | |
851 | |
852 goto found; | |
853 } | |
854 } | |
855 | |
569 | 856 if (ngx_http_log_variable_compile(cf, op, &var) != NGX_OK) { |
857 return NGX_CONF_ERROR; | |
858 } | |
859 | |
573 | 860 found: |
861 | |
862 continue; | |
863 } | |
864 | |
865 i++; | |
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866 |
880 | 867 while (i < value[s].len && value[s].data[i] != '$') { |
573 | 868 i++; |
869 } | |
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870 |
573 | 871 len = &value[s].data[i] - data; |
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872 |
573 | 873 if (len) { |
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874 |
573 | 875 op->len = len; |
876 op->getlen = NULL; | |
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877 |
573 | 878 if (len <= sizeof(uintptr_t)) { |
879 op->run = ngx_http_log_copy_short; | |
880 op->data = 0; | |
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881 |
573 | 882 while (len--) { |
883 op->data <<= 8; | |
884 op->data |= data[len]; | |
885 } | |
886 | |
887 } else { | |
888 op->run = ngx_http_log_copy_long; | |
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889 |
573 | 890 p = ngx_palloc(cf->pool, len); |
891 if (p == NULL) { | |
892 return NGX_CONF_ERROR; | |
893 } | |
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894 |
573 | 895 ngx_memcpy(p, data, len); |
896 op->data = (uintptr_t) p; | |
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897 } |
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898 } |
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899 } |
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900 } |
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901 |
569 | 902 return NGX_CONF_OK; |
903 | |
904 invalid: | |
905 | |
906 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid parameter \"%s\"", data); | |
907 | |
908 return NGX_CONF_ERROR; | |
909 } | |
910 | |
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911 |
569 | 912 static ngx_int_t |
573 | 913 ngx_http_log_init(ngx_conf_t *cf) |
569 | 914 { |
573 | 915 ngx_str_t *value; |
916 ngx_array_t a; | |
581 | 917 ngx_http_handler_pt *h; |
573 | 918 ngx_http_log_fmt_t *fmt; |
919 ngx_http_log_main_conf_t *lmcf; | |
569 | 920 ngx_http_core_main_conf_t *cmcf; |
921 | |
573 | 922 lmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_log_module); |
923 | |
924 if (lmcf->combined_used) { | |
925 if (ngx_array_init(&a, cf->pool, 1, sizeof(ngx_str_t)) != NGX_OK) { | |
926 return NGX_ERROR; | |
927 } | |
928 | |
929 value = ngx_array_push(&a); | |
930 if (value == NULL) { | |
931 return NGX_ERROR; | |
932 } | |
933 | |
934 *value = ngx_http_combined_fmt; | |
935 fmt = lmcf->formats.elts; | |
936 | |
937 if (ngx_http_log_compile_format(cf, fmt->ops, &a, 0) | |
938 != NGX_CONF_OK) | |
939 { | |
940 return NGX_ERROR; | |
941 } | |
942 } | |
943 | |
944 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module); | |
569 | 945 |
581 | 946 h = ngx_array_push(&cmcf->phases[NGX_HTTP_LOG_PHASE].handlers); |
947 if (h == NULL) { | |
948 return NGX_ERROR; | |
949 } | |
950 | |
951 *h = ngx_http_log_handler; | |
569 | 952 |
953 return NGX_OK; | |
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954 } |