Mercurial > hg > nginx-quic
annotate src/http/modules/ngx_http_log_module.c @ 1571:f3a941d0d666
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author | Igor Sysoev <igor@sysoev.ru> |
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date | Mon, 15 Oct 2007 11:32:09 +0000 |
parents | bb662e047a21 |
children | 02a22cd5282a |
rev | line source |
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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 }, | |
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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 |
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117 |NGX_HTTP_LMT_CONF|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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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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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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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\""); |
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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 }, | |
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173 { ngx_string("request_time"), NGX_TIME_T_LEN + 4, |
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174 ngx_http_log_request_time }, |
573 | 175 { ngx_string("status"), 3, ngx_http_log_status }, |
176 { ngx_string("bytes_sent"), NGX_OFF_T_LEN, ngx_http_log_bytes_sent }, | |
577 | 177 { ngx_string("body_bytes_sent"), NGX_OFF_T_LEN, |
178 ngx_http_log_body_bytes_sent }, | |
573 | 179 { ngx_string("apache_bytes_sent"), NGX_OFF_T_LEN, |
577 | 180 ngx_http_log_body_bytes_sent }, |
573 | 181 { ngx_string("request_length"), NGX_SIZE_T_LEN, |
182 ngx_http_log_request_length }, | |
183 | |
184 { ngx_null_string, 0, NULL } | |
185 }; | |
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187 |
497 | 188 ngx_int_t |
189 ngx_http_log_handler(ngx_http_request_t *r) | |
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190 { |
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191 u_char *line, *p; |
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192 size_t len; |
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193 ngx_uint_t i, l; |
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194 ngx_http_log_t *log; |
571 | 195 ngx_open_file_t *file; |
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196 ngx_http_log_op_t *op; |
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197 ngx_http_log_loc_conf_t *lcf; |
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198 |
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199 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
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200 "http log handler"); |
28
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201 |
99
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202 lcf = ngx_http_get_module_loc_conf(r, ngx_http_log_module); |
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203 |
427
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204 if (lcf->off) { |
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205 return NGX_OK; |
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206 } |
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207 |
176
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208 log = lcf->logs->elts; |
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209 for (l = 0; l < lcf->logs->nelts; l++) { |
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210 |
633 | 211 if (ngx_time() == log[l].disk_full_time) { |
212 | |
213 /* | |
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214 * on FreeBSD writing to a full filesystem with enabled softupdates |
633 | 215 * may block process for much longer time than writing to non-full |
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216 * filesystem, so we skip writing to a log for one second |
633 | 217 */ |
218 | |
219 continue; | |
220 } | |
221 | |
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222 len = 0; |
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223 op = log[l].ops->elts; |
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224 for (i = 0; i < log[l].ops->nelts; i++) { |
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225 if (op[i].len == 0) { |
479 | 226 len += op[i].getlen(r, op[i].data); |
176
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227 |
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228 } else { |
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229 len += op[i].len; |
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230 } |
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231 } |
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232 |
571 | 233 len += NGX_LINEFEED_SIZE; |
234 | |
235 file = log[l].file; | |
236 | |
237 if (file->buffer) { | |
238 | |
239 if (len > (size_t) (file->last - file->pos)) { | |
240 | |
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241 ngx_http_log_write(r, &log[l], file->buffer, |
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242 file->pos - file->buffer); |
571 | 243 |
244 file->pos = file->buffer; | |
245 } | |
246 | |
247 if (len <= (size_t) (file->last - file->pos)) { | |
248 | |
249 p = file->pos; | |
250 | |
251 for (i = 0; i < log[l].ops->nelts; i++) { | |
252 p = op[i].run(r, p, &op[i]); | |
253 } | |
254 | |
255 ngx_linefeed(p); | |
256 | |
257 file->pos = p; | |
258 | |
259 continue; | |
260 } | |
261 } | |
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262 |
501 | 263 line = ngx_palloc(r->pool, len); |
264 if (line == NULL) { | |
473 | 265 return NGX_ERROR; |
266 } | |
267 | |
176
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268 p = line; |
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269 |
176
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270 for (i = 0; i < log[l].ops->nelts; i++) { |
479 | 271 p = op[i].run(r, p, &op[i]); |
176
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272 } |
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273 |
571 | 274 ngx_linefeed(p); |
275 | |
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276 ngx_http_log_write(r, &log[l], line, p - line); |
176
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277 } |
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278 |
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279 return NGX_OK; |
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280 } |
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281 |
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282 |
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283 static void |
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284 ngx_http_log_write(ngx_http_request_t *r, ngx_http_log_t *log, u_char *buf, |
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285 size_t len) |
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286 { |
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287 time_t now; |
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288 ssize_t n; |
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289 ngx_err_t err; |
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290 |
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291 n = ngx_write_fd(log->file->fd, buf, len); |
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292 |
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293 if (n == (ssize_t) len) { |
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294 return; |
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295 } |
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296 |
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297 now = ngx_time(); |
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298 |
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299 if (n == -1) { |
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300 err = ngx_errno; |
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301 |
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302 if (err == NGX_ENOSPC) { |
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303 log->disk_full_time = now; |
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304 } |
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305 |
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306 if (now - log->error_log_time > 59) { |
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307 ngx_log_error(NGX_LOG_ALERT, r->connection->log, err, |
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308 ngx_write_fd_n " to \"%V\" failed", |
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309 &log->file->name); |
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310 |
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311 log->error_log_time = now; |
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312 } |
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313 |
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314 return; |
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315 } |
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316 |
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317 if (now - log->error_log_time > 59) { |
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318 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0, |
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319 ngx_write_fd_n " to \"%V\" was incomplete: %z of %uz", |
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320 &log->file->name, n, len); |
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321 |
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322 log->error_log_time = now; |
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323 } |
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324 } |
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325 |
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326 |
497 | 327 static u_char * |
328 ngx_http_log_copy_short(ngx_http_request_t *r, u_char *buf, | |
329 ngx_http_log_op_t *op) | |
479 | 330 { |
331 size_t len; | |
332 uintptr_t data; | |
333 | |
334 len = op->len; | |
335 data = op->data; | |
336 | |
337 while (len--) { | |
338 *buf++ = (u_char) (data & 0xff); | |
339 data >>= 8; | |
340 } | |
341 | |
342 return buf; | |
343 } | |
344 | |
345 | |
497 | 346 static u_char * |
347 ngx_http_log_copy_long(ngx_http_request_t *r, u_char *buf, | |
348 ngx_http_log_op_t *op) | |
479 | 349 { |
350 return ngx_cpymem(buf, (u_char *) op->data, op->len); | |
351 } | |
352 | |
353 | |
497 | 354 static u_char * |
355 ngx_http_log_connection(ngx_http_request_t *r, u_char *buf, | |
356 ngx_http_log_op_t *op) | |
176
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357 { |
455 | 358 return ngx_sprintf(buf, "%ui", r->connection->number); |
176
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359 } |
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360 |
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361 |
497 | 362 static u_char * |
363 ngx_http_log_pipe(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op) | |
176
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364 { |
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365 if (r->pipeline) { |
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366 *buf = 'p'; |
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367 } else { |
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368 *buf = '.'; |
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369 } |
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370 |
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371 return buf + 1; |
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372 } |
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373 |
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374 |
497 | 375 static u_char * |
376 ngx_http_log_time(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op) | |
176
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377 { |
178
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378 return ngx_cpymem(buf, ngx_cached_http_log_time.data, |
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379 ngx_cached_http_log_time.len); |
176
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380 } |
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381 |
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382 |
497 | 383 static u_char * |
384 ngx_http_log_msec(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op) | |
409
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385 { |
563 | 386 ngx_time_t *tp; |
409
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387 |
563 | 388 tp = ngx_timeofday(); |
409
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389 |
563 | 390 return ngx_sprintf(buf, "%T.%03M", tp->sec, tp->msec); |
409
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391 } |
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392 |
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393 |
497 | 394 static u_char * |
395 ngx_http_log_request_time(ngx_http_request_t *r, u_char *buf, | |
396 ngx_http_log_op_t *op) | |
397 { | |
1179
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398 ngx_time_t *tp; |
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399 ngx_msec_int_t ms; |
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400 |
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401 tp = ngx_timeofday(); |
497 | 402 |
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403 ms = (tp->sec - r->start_sec) * 1000 + (tp->msec - r->start_msec); |
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404 ms = (ms >= 0) ? ms : 0; |
497 | 405 |
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406 return ngx_sprintf(buf, "%T.%03M", ms / 1000, ms % 1000); |
497 | 407 } |
408 | |
409 | |
410 static u_char * | |
411 ngx_http_log_status(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op) | |
176
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412 { |
455 | 413 return ngx_sprintf(buf, "%ui", |
414 r->err_status ? r->err_status : r->headers_out.status); | |
176
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415 } |
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416 |
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417 |
497 | 418 static u_char * |
573 | 419 ngx_http_log_bytes_sent(ngx_http_request_t *r, u_char *buf, |
420 ngx_http_log_op_t *op) | |
176
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421 { |
455 | 422 return ngx_sprintf(buf, "%O", r->connection->sent); |
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423 } |
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424 |
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425 |
1271 | 426 /* |
427 * although there is a real $body_bytes_sent variable, | |
428 * this log operation code function is more optimized for logging | |
429 */ | |
430 | |
497 | 431 static u_char * |
577 | 432 ngx_http_log_body_bytes_sent(ngx_http_request_t *r, u_char *buf, |
497 | 433 ngx_http_log_op_t *op) |
210
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434 { |
497 | 435 off_t length; |
436 | |
437 length = r->connection->sent - r->header_size; | |
438 | |
439 if (length > 0) { | |
440 return ngx_sprintf(buf, "%O", length); | |
441 } | |
442 | |
443 *buf = '0'; | |
444 | |
445 return buf + 1; | |
210
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446 } |
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447 |
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448 |
497 | 449 static u_char * |
450 ngx_http_log_request_length(ngx_http_request_t *r, u_char *buf, | |
451 ngx_http_log_op_t *op) | |
475 | 452 { |
663 | 453 return ngx_sprintf(buf, "%O", r->request_length); |
475 | 454 } |
455 | |
456 | |
497 | 457 static ngx_int_t |
501 | 458 ngx_http_log_variable_compile(ngx_conf_t *cf, ngx_http_log_op_t *op, |
459 ngx_str_t *value) | |
460 { | |
509 | 461 ngx_int_t index; |
501 | 462 |
509 | 463 index = ngx_http_get_variable_index(cf, value); |
464 if (index == NGX_ERROR) { | |
501 | 465 return NGX_ERROR; |
466 } | |
467 | |
468 op->len = 0; | |
469 op->getlen = ngx_http_log_variable_getlen; | |
470 op->run = ngx_http_log_variable; | |
509 | 471 op->data = index; |
501 | 472 |
473 return NGX_OK; | |
474 } | |
475 | |
476 | |
477 static size_t | |
478 ngx_http_log_variable_getlen(ngx_http_request_t *r, uintptr_t data) | |
479 { | |
480 ngx_http_variable_value_t *value; | |
481 | |
482 value = ngx_http_get_indexed_variable(r, data); | |
483 | |
573 | 484 if (value == NULL || value->not_found) { |
501 | 485 return 1; |
486 } | |
487 | |
573 | 488 return value->len; |
501 | 489 } |
490 | |
491 | |
492 static u_char * | |
493 ngx_http_log_variable(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op) | |
494 { | |
495 ngx_http_variable_value_t *value; | |
496 | |
497 value = ngx_http_get_indexed_variable(r, op->data); | |
498 | |
573 | 499 if (value == NULL || value->not_found) { |
501 | 500 *buf = '-'; |
501 return buf + 1; | |
502 } | |
503 | |
573 | 504 return ngx_cpymem(buf, value->data, value->len); |
501 | 505 } |
506 | |
507 | |
497 | 508 static void * |
509 ngx_http_log_create_main_conf(ngx_conf_t *cf) | |
176
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510 { |
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511 ngx_http_log_main_conf_t *conf; |
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512 |
573 | 513 ngx_http_log_fmt_t *fmt; |
176
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514 |
501 | 515 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_log_main_conf_t)); |
516 if (conf == NULL) { | |
176
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517 return NGX_CONF_ERROR; |
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518 } |
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519 |
497 | 520 if (ngx_array_init(&conf->formats, cf->pool, 4, sizeof(ngx_http_log_fmt_t)) |
573 | 521 != NGX_OK) |
497 | 522 { |
523 return NGX_CONF_ERROR; | |
524 } | |
176
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525 |
573 | 526 fmt = ngx_array_push(&conf->formats); |
527 if (fmt == NULL) { | |
176
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528 return NGX_CONF_ERROR; |
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529 } |
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530 |
573 | 531 fmt->name.len = sizeof("combined") - 1; |
532 fmt->name.data = (u_char *) "combined"; | |
176
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533 |
573 | 534 fmt->ops = ngx_array_create(cf->pool, 16, sizeof(ngx_http_log_op_t)); |
535 if (fmt->ops == NULL) { | |
569 | 536 return NGX_CONF_ERROR; |
176
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537 } |
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538 |
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539 return conf; |
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540 } |
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541 |
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542 |
497 | 543 static void * |
544 ngx_http_log_create_loc_conf(ngx_conf_t *cf) | |
176
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545 { |
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546 ngx_http_log_loc_conf_t *conf; |
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547 |
501 | 548 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_log_loc_conf_t)); |
549 if (conf == NULL) { | |
427
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550 return NGX_CONF_ERROR; |
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551 } |
99
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552 |
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553 return conf; |
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554 } |
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555 |
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556 |
497 | 557 static char * |
558 ngx_http_log_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child) | |
99
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559 { |
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560 ngx_http_log_loc_conf_t *prev = parent; |
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561 ngx_http_log_loc_conf_t *conf = child; |
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562 |
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563 ngx_http_log_t *log; |
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564 ngx_http_log_fmt_t *fmt; |
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565 ngx_http_log_main_conf_t *lmcf; |
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566 |
1074 | 567 if (conf->logs || conf->off) { |
568 return NGX_CONF_OK; | |
569 } | |
427
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570 |
1074 | 571 *conf = *prev; |
176
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572 |
1074 | 573 if (conf->logs || conf->off) { |
574 return NGX_CONF_OK; | |
575 } | |
99
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576 |
1074 | 577 conf->logs = ngx_array_create(cf->pool, 2, sizeof(ngx_http_log_t)); |
578 if (conf->logs == NULL) { | |
579 return NGX_CONF_ERROR; | |
580 } | |
176
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581 |
1074 | 582 log = ngx_array_push(conf->logs); |
583 if (log == NULL) { | |
584 return NGX_CONF_ERROR; | |
585 } | |
176
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586 |
1074 | 587 log->file = ngx_conf_open_file(cf->cycle, &ngx_http_access_log); |
588 if (log->file == NULL) { | |
589 return NGX_CONF_ERROR; | |
590 } | |
176
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591 |
1074 | 592 log->disk_full_time = 0; |
593 log->error_log_time = 0; | |
427
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594 |
1074 | 595 lmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_log_module); |
596 fmt = lmcf->formats.elts; | |
597 | |
598 /* the default "combined" format */ | |
599 log->ops = fmt[0].ops; | |
600 lmcf->combined_used = 1; | |
99
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601 |
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602 return NGX_CONF_OK; |
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603 } |
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604 |
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605 |
497 | 606 static char * |
607 ngx_http_log_set_log(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
99
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608 { |
176
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609 ngx_http_log_loc_conf_t *llcf = conf; |
99
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610 |
571 | 611 ssize_t buf; |
290
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612 ngx_uint_t i; |
176
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613 ngx_str_t *value, name; |
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614 ngx_http_log_t *log; |
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615 ngx_http_log_fmt_t *fmt; |
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616 ngx_http_log_main_conf_t *lmcf; |
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617 |
427
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618 value = cf->args->elts; |
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619 |
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620 if (ngx_strcmp(value[1].data, "off") == 0) { |
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621 llcf->off = 1; |
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622 return NGX_CONF_OK; |
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623 } |
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624 |
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625 if (llcf->logs == NULL) { |
427
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626 llcf->logs = ngx_array_create(cf->pool, 2, sizeof(ngx_http_log_t)); |
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627 if (llcf->logs == NULL) { |
176
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628 return NGX_CONF_ERROR; |
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629 } |
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630 } |
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631 |
393
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632 lmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_log_module); |
99
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633 |
501 | 634 log = ngx_array_push(llcf->logs); |
635 if (log == NULL) { | |
176
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636 return NGX_CONF_ERROR; |
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637 } |
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638 |
501 | 639 log->file = ngx_conf_open_file(cf->cycle, &value[1]); |
640 if (log->file == NULL) { | |
176
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641 return NGX_CONF_ERROR; |
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642 } |
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643 |
633 | 644 log->disk_full_time = 0; |
1071
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645 log->error_log_time = 0; |
633 | 646 |
571 | 647 if (cf->args->nelts >= 3) { |
176
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648 name = value[2]; |
581 | 649 |
650 if (ngx_strcmp(name.data, "combined") == 0) { | |
651 lmcf->combined_used = 1; | |
652 } | |
653 | |
176
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654 } else { |
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655 name.len = sizeof("combined") - 1; |
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656 name.data = (u_char *) "combined"; |
573 | 657 lmcf->combined_used = 1; |
176
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658 } |
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659 |
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660 fmt = lmcf->formats.elts; |
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661 for (i = 0; i < lmcf->formats.nelts; i++) { |
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662 if (fmt[i].name.len == name.len |
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663 && ngx_strcasecmp(fmt[i].name.data, name.data) == 0) |
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664 { |
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665 log->ops = fmt[i].ops; |
571 | 666 goto buffer; |
176
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667 } |
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668 } |
100
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669 |
487 | 670 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
671 "unknown log format \"%V\"", &name); | |
571 | 672 return NGX_CONF_ERROR; |
487 | 673 |
571 | 674 buffer: |
675 | |
676 if (cf->args->nelts == 4) { | |
677 if (ngx_strncmp(value[3].data, "buffer=", 7) != 0) { | |
678 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
679 "invalid parameter \"%V\"", &value[3]); | |
680 return NGX_CONF_ERROR; | |
681 } | |
682 | |
683 name.len = value[3].len - 7; | |
684 name.data = value[3].data + 7; | |
685 | |
686 buf = ngx_parse_size(&name); | |
687 | |
688 if (buf == NGX_ERROR) { | |
689 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
690 "invalid parameter \"%V\"", &value[3]); | |
691 return NGX_CONF_ERROR; | |
692 } | |
693 | |
694 if (log->file->buffer && log->file->last - log->file->pos != buf) { | |
695 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
696 "access_log \"%V\" already defined " | |
697 "with different buffer size", &value[1]); | |
698 return NGX_CONF_ERROR; | |
699 } | |
700 | |
701 log->file->buffer = ngx_palloc(cf->pool, buf); | |
702 if (log->file->buffer == NULL) { | |
703 return NGX_CONF_ERROR; | |
704 } | |
705 | |
706 log->file->pos = log->file->buffer; | |
707 log->file->last = log->file->buffer + buf; | |
708 } | |
709 | |
710 return NGX_CONF_OK; | |
99
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711 } |
176
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712 |
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713 |
497 | 714 static char * |
715 ngx_http_log_set_format(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
176
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716 { |
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717 ngx_http_log_main_conf_t *lmcf = conf; |
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718 |
573 | 719 ngx_str_t *value; |
720 ngx_uint_t i; | |
721 ngx_http_log_fmt_t *fmt; | |
176
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722 |
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723 value = cf->args->elts; |
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724 |
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725 fmt = lmcf->formats.elts; |
573 | 726 for (i = 0; i < lmcf->formats.nelts; i++) { |
727 if (fmt[i].name.len == value[1].len | |
728 && ngx_strcmp(fmt[i].name.data, value[1].data) == 0) | |
176
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729 { |
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730 return "duplicate \"log_format\" name"; |
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731 } |
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732 } |
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733 |
501 | 734 fmt = ngx_array_push(&lmcf->formats); |
735 if (fmt == NULL) { | |
176
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736 return NGX_CONF_ERROR; |
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737 } |
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738 |
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739 fmt->name = value[1]; |
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740 |
573 | 741 fmt->ops = ngx_array_create(cf->pool, 16, sizeof(ngx_http_log_op_t)); |
501 | 742 if (fmt->ops == NULL) { |
176
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743 return NGX_CONF_ERROR; |
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744 } |
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745 |
573 | 746 return ngx_http_log_compile_format(cf, fmt->ops, cf->args, 2); |
747 } | |
748 | |
176
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749 |
573 | 750 static char * |
751 ngx_http_log_compile_format(ngx_conf_t *cf, ngx_array_t *ops, | |
752 ngx_array_t *args, ngx_uint_t s) | |
753 { | |
880 | 754 u_char *data, *p, ch; |
755 size_t i, len; | |
756 ngx_str_t *value, var; | |
757 ngx_uint_t bracket; | |
758 ngx_http_log_op_t *op; | |
759 ngx_http_log_var_t *v; | |
573 | 760 |
761 value = args->elts; | |
762 | |
763 for ( /* void */ ; s < args->nelts; s++) { | |
176
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764 |
880 | 765 for (i = 0; i < value[s].len; i++) { |
766 if (value[s].data[i] != '%') { | |
767 continue; | |
768 } | |
769 | |
770 ch = value[s].data[i + 1]; | |
771 | |
772 if ((ch >= 'A' && ch <= 'Z') | |
773 || (ch >= 'a' && ch <= 'z') | |
774 || ch == '{') | |
775 { | |
776 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
777 "the parameters in the \"%%name\" form are not supported, " | |
778 "use the \"$variable\" instead"); | |
779 | |
780 return NGX_CONF_ERROR; | |
781 } | |
782 } | |
783 | |
176
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784 i = 0; |
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785 |
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786 while (i < value[s].len) { |
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787 |
573 | 788 op = ngx_array_push(ops); |
501 | 789 if (op == NULL) { |
176
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790 return NGX_CONF_ERROR; |
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791 } |
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792 |
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793 data = &value[s].data[i]; |
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794 |
880 | 795 if (value[s].data[i] == '$') { |
569 | 796 |
797 if (++i == value[s].len) { | |
798 goto invalid; | |
799 } | |
800 | |
801 if (value[s].data[i] == '{') { | |
802 bracket = 1; | |
803 | |
804 if (++i == value[s].len) { | |
805 goto invalid; | |
806 } | |
807 | |
808 var.data = &value[s].data[i]; | |
809 | |
810 } else { | |
811 bracket = 0; | |
812 var.data = &value[s].data[i]; | |
813 } | |
814 | |
815 for (var.len = 0; i < value[s].len; i++, var.len++) { | |
816 ch = value[s].data[i]; | |
817 | |
818 if (ch == '}' && bracket) { | |
819 i++; | |
820 bracket = 0; | |
821 break; | |
822 } | |
823 | |
824 if ((ch >= 'A' && ch <= 'Z') | |
825 || (ch >= 'a' && ch <= 'z') | |
826 || (ch >= '0' && ch <= '9') | |
827 || ch == '_') | |
828 { | |
829 continue; | |
830 } | |
831 | |
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832 break; |
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833 } |
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834 |
569 | 835 if (bracket) { |
836 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
837 "the closing bracket in \"%V\" " | |
838 "variable is missing", &var); | |
839 return NGX_CONF_ERROR; | |
840 } | |
841 | |
842 if (var.len == 0) { | |
843 goto invalid; | |
844 } | |
845 | |
577 | 846 if (ngx_strncmp(var.data, "apache_bytes_sent", 17) == 0) { |
847 ngx_conf_log_error(NGX_LOG_WARN, cf, 0, | |
848 "use \"$body_bytes_sent\" instead of " | |
849 "\"$apache_bytes_sent\""); | |
850 } | |
851 | |
573 | 852 for (v = ngx_http_log_vars; v->name.len; v++) { |
853 | |
854 if (v->name.len == var.len | |
855 && ngx_strncmp(v->name.data, var.data, var.len) == 0) | |
856 { | |
857 op->len = v->len; | |
858 op->getlen = NULL; | |
859 op->run = v->run; | |
860 op->data = 0; | |
861 | |
862 goto found; | |
863 } | |
864 } | |
865 | |
569 | 866 if (ngx_http_log_variable_compile(cf, op, &var) != NGX_OK) { |
867 return NGX_CONF_ERROR; | |
868 } | |
869 | |
573 | 870 found: |
871 | |
872 continue; | |
873 } | |
874 | |
875 i++; | |
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876 |
880 | 877 while (i < value[s].len && value[s].data[i] != '$') { |
573 | 878 i++; |
879 } | |
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880 |
573 | 881 len = &value[s].data[i] - data; |
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882 |
573 | 883 if (len) { |
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884 |
573 | 885 op->len = len; |
886 op->getlen = NULL; | |
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887 |
573 | 888 if (len <= sizeof(uintptr_t)) { |
889 op->run = ngx_http_log_copy_short; | |
890 op->data = 0; | |
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891 |
573 | 892 while (len--) { |
893 op->data <<= 8; | |
894 op->data |= data[len]; | |
895 } | |
896 | |
897 } else { | |
898 op->run = ngx_http_log_copy_long; | |
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899 |
573 | 900 p = ngx_palloc(cf->pool, len); |
901 if (p == NULL) { | |
902 return NGX_CONF_ERROR; | |
903 } | |
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904 |
573 | 905 ngx_memcpy(p, data, len); |
906 op->data = (uintptr_t) p; | |
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907 } |
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908 } |
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909 } |
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910 } |
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911 |
569 | 912 return NGX_CONF_OK; |
913 | |
914 invalid: | |
915 | |
916 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid parameter \"%s\"", data); | |
917 | |
918 return NGX_CONF_ERROR; | |
919 } | |
920 | |
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921 |
569 | 922 static ngx_int_t |
573 | 923 ngx_http_log_init(ngx_conf_t *cf) |
569 | 924 { |
573 | 925 ngx_str_t *value; |
926 ngx_array_t a; | |
581 | 927 ngx_http_handler_pt *h; |
573 | 928 ngx_http_log_fmt_t *fmt; |
929 ngx_http_log_main_conf_t *lmcf; | |
569 | 930 ngx_http_core_main_conf_t *cmcf; |
931 | |
573 | 932 lmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_log_module); |
933 | |
934 if (lmcf->combined_used) { | |
935 if (ngx_array_init(&a, cf->pool, 1, sizeof(ngx_str_t)) != NGX_OK) { | |
936 return NGX_ERROR; | |
937 } | |
938 | |
939 value = ngx_array_push(&a); | |
940 if (value == NULL) { | |
941 return NGX_ERROR; | |
942 } | |
943 | |
944 *value = ngx_http_combined_fmt; | |
945 fmt = lmcf->formats.elts; | |
946 | |
947 if (ngx_http_log_compile_format(cf, fmt->ops, &a, 0) | |
948 != NGX_CONF_OK) | |
949 { | |
950 return NGX_ERROR; | |
951 } | |
952 } | |
953 | |
954 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module); | |
569 | 955 |
581 | 956 h = ngx_array_push(&cmcf->phases[NGX_HTTP_LOG_PHASE].handlers); |
957 if (h == NULL) { | |
958 return NGX_ERROR; | |
959 } | |
960 | |
961 *h = ngx_http_log_handler; | |
569 | 962 |
963 return NGX_OK; | |
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964 } |