Mercurial > hg > nginx
annotate src/http/modules/ngx_http_stub_status_module.c @ 5204:a64c8a5da336
PCRE: retain input pattern for all regular expressions.
Previously, input pattern was kept only for regular expressions
with named captures, which resulted in error log entries without
input pattern for PCRE errors that occured while processing
regular expressions without them.
Signed-off-by: Piotr Sikora <piotr@cloudflare.com>
| author | Piotr Sikora <piotr@cloudflare.com> |
|---|---|
| date | Thu, 02 May 2013 03:26:36 -0700 |
| parents | a29c574d61fa |
| children | ee739104d164 |
| rev | line source |
|---|---|
| 577 | 1 |
| 2 /* | |
| 3 * Copyright (C) Igor Sysoev | |
| 4412 | 4 * Copyright (C) Nginx, Inc. |
| 577 | 5 */ |
| 6 | |
| 487 | 7 |
| 8 #include <ngx_config.h> | |
| 9 #include <ngx_core.h> | |
| 10 #include <ngx_http.h> | |
| 11 | |
| 12 | |
|
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13 static ngx_int_t ngx_http_stub_status_variable(ngx_http_request_t *r, |
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14 ngx_http_variable_value_t *v, uintptr_t data); |
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15 static ngx_int_t ngx_http_stub_status_add_variables(ngx_conf_t *cf); |
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16 |
| 487 | 17 static char *ngx_http_set_status(ngx_conf_t *cf, ngx_command_t *cmd, |
| 18 void *conf); | |
| 577 | 19 |
| 487 | 20 static ngx_command_t ngx_http_status_commands[] = { |
| 21 | |
| 22 { ngx_string("stub_status"), | |
| 23 NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
| 24 ngx_http_set_status, | |
| 25 0, | |
| 26 0, | |
| 27 NULL }, | |
| 28 | |
| 29 ngx_null_command | |
| 577 | 30 }; |
| 487 | 31 |
| 32 | |
| 577 | 33 |
| 667 | 34 static ngx_http_module_t ngx_http_stub_status_module_ctx = { |
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35 ngx_http_stub_status_add_variables, /* preconfiguration */ |
| 509 | 36 NULL, /* postconfiguration */ |
| 487 | 37 |
| 38 NULL, /* create main configuration */ | |
| 39 NULL, /* init main configuration */ | |
| 577 | 40 |
| 487 | 41 NULL, /* create server configuration */ |
| 42 NULL, /* merge server configuration */ | |
| 577 | 43 |
| 487 | 44 NULL, /* create location configuration */ |
| 45 NULL /* merge location configuration */ | |
| 46 }; | |
| 47 | |
| 48 | |
| 49 ngx_module_t ngx_http_stub_status_module = { | |
| 509 | 50 NGX_MODULE_V1, |
| 487 | 51 &ngx_http_stub_status_module_ctx, /* module context */ |
| 52 ngx_http_status_commands, /* module directives */ | |
| 53 NGX_HTTP_MODULE, /* module type */ | |
| 541 | 54 NULL, /* init master */ |
| 487 | 55 NULL, /* init module */ |
| 541 | 56 NULL, /* init process */ |
| 57 NULL, /* init thread */ | |
| 58 NULL, /* exit thread */ | |
| 59 NULL, /* exit process */ | |
| 60 NULL, /* exit master */ | |
| 61 NGX_MODULE_V1_PADDING | |
| 487 | 62 }; |
| 63 | |
| 64 | |
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65 static ngx_http_variable_t ngx_http_stub_status_vars[] = { |
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66 |
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67 { ngx_string("connections_active"), NULL, ngx_http_stub_status_variable, |
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68 0, NGX_HTTP_VAR_NOCACHEABLE, 0 }, |
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69 |
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70 { ngx_string("connections_reading"), NULL, ngx_http_stub_status_variable, |
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71 1, NGX_HTTP_VAR_NOCACHEABLE, 0 }, |
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72 |
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73 { ngx_string("connections_writing"), NULL, ngx_http_stub_status_variable, |
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74 2, NGX_HTTP_VAR_NOCACHEABLE, 0 }, |
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75 |
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76 { ngx_string("connections_waiting"), NULL, ngx_http_stub_status_variable, |
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77 3, NGX_HTTP_VAR_NOCACHEABLE, 0 }, |
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78 |
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79 { ngx_null_string, NULL, NULL, 0, 0, 0 } |
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80 }; |
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81 |
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82 |
| 487 | 83 static ngx_int_t ngx_http_status_handler(ngx_http_request_t *r) |
| 84 { | |
| 495 | 85 size_t size; |
| 86 ngx_int_t rc; | |
| 87 ngx_buf_t *b; | |
| 88 ngx_chain_t out; | |
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89 ngx_atomic_int_t ap, hn, ac, rq, rd, wr, wa; |
| 577 | 90 |
| 487 | 91 if (r->method != NGX_HTTP_GET && r->method != NGX_HTTP_HEAD) { |
| 92 return NGX_HTTP_NOT_ALLOWED; | |
| 93 } | |
| 94 | |
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95 rc = ngx_http_discard_request_body(r); |
| 487 | 96 |
| 1374 | 97 if (rc != NGX_OK) { |
| 487 | 98 return rc; |
| 99 } | |
| 100 | |
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101 ngx_str_set(&r->headers_out.content_type, "text/plain"); |
| 487 | 102 |
| 103 if (r->method == NGX_HTTP_HEAD) { | |
| 104 r->headers_out.status = NGX_HTTP_OK; | |
| 105 | |
| 106 rc = ngx_http_send_header(r); | |
| 107 | |
| 108 if (rc == NGX_ERROR || rc > NGX_OK || r->header_only) { | |
| 109 return rc; | |
| 110 } | |
| 111 } | |
| 112 | |
| 495 | 113 size = sizeof("Active connections: \n") + NGX_ATOMIC_T_LEN |
| 487 | 114 + sizeof("server accepts handled requests\n") - 1 |
| 495 | 115 + 6 + 3 * NGX_ATOMIC_T_LEN |
| 116 + sizeof("Reading: Writing: Waiting: \n") + 3 * NGX_ATOMIC_T_LEN; | |
| 487 | 117 |
| 501 | 118 b = ngx_create_temp_buf(r->pool, size); |
| 119 if (b == NULL) { | |
| 487 | 120 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
| 121 } | |
| 122 | |
| 123 out.buf = b; | |
| 124 out.next = NULL; | |
| 125 | |
| 126 ap = *ngx_stat_accepted; | |
| 495 | 127 hn = *ngx_stat_handled; |
| 487 | 128 ac = *ngx_stat_active; |
| 129 rq = *ngx_stat_requests; | |
| 130 rd = *ngx_stat_reading; | |
| 131 wr = *ngx_stat_writing; | |
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132 wa = *ngx_stat_waiting; |
| 487 | 133 |
| 509 | 134 b->last = ngx_sprintf(b->last, "Active connections: %uA \n", ac); |
| 487 | 135 |
| 136 b->last = ngx_cpymem(b->last, "server accepts handled requests\n", | |
| 137 sizeof("server accepts handled requests\n") - 1); | |
| 138 | |
| 509 | 139 b->last = ngx_sprintf(b->last, " %uA %uA %uA \n", ap, hn, rq); |
| 487 | 140 |
| 509 | 141 b->last = ngx_sprintf(b->last, "Reading: %uA Writing: %uA Waiting: %uA \n", |
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142 rd, wr, wa); |
| 487 | 143 |
| 144 r->headers_out.status = NGX_HTTP_OK; | |
| 145 r->headers_out.content_length_n = b->last - b->pos; | |
| 146 | |
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147 b->last_buf = (r == r->main) ? 1 : 0; |
| 487 | 148 |
| 149 rc = ngx_http_send_header(r); | |
| 150 | |
| 151 if (rc == NGX_ERROR || rc > NGX_OK || r->header_only) { | |
| 152 return rc; | |
| 153 } | |
| 154 | |
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155 return ngx_http_output_filter(r, &out); |
| 487 | 156 } |
| 157 | |
| 158 | |
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159 static ngx_int_t |
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160 ngx_http_stub_status_variable(ngx_http_request_t *r, |
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161 ngx_http_variable_value_t *v, uintptr_t data) |
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162 { |
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163 u_char *p; |
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164 ngx_atomic_int_t value; |
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165 |
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166 p = ngx_pnalloc(r->pool, NGX_ATOMIC_T_LEN); |
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167 if (p == NULL) { |
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168 return NGX_ERROR; |
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169 } |
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170 |
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171 switch (data) { |
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172 case 0: |
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173 value = *ngx_stat_active; |
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174 break; |
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175 |
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176 case 1: |
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177 value = *ngx_stat_reading; |
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178 break; |
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179 |
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180 case 2: |
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181 value = *ngx_stat_writing; |
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182 break; |
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183 |
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184 case 3: |
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185 value = *ngx_stat_waiting; |
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186 break; |
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187 |
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188 /* suppress warning */ |
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189 default: |
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190 value = 0; |
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191 break; |
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192 } |
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193 |
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194 v->len = ngx_sprintf(p, "%uA", value) - p; |
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195 v->valid = 1; |
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196 v->no_cacheable = 0; |
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197 v->not_found = 0; |
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198 v->data = p; |
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199 |
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200 return NGX_OK; |
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201 } |
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202 |
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203 |
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204 static ngx_int_t |
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205 ngx_http_stub_status_add_variables(ngx_conf_t *cf) |
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206 { |
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207 ngx_http_variable_t *var, *v; |
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Introduced variables in ngx_http_stub_status module.
Andrey Belov <defan@nginx.com>
parents:
4611
diff
changeset
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208 |
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1c472e3b8c10
Introduced variables in ngx_http_stub_status module.
Andrey Belov <defan@nginx.com>
parents:
4611
diff
changeset
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209 for (v = ngx_http_stub_status_vars; v->name.len; v++) { |
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1c472e3b8c10
Introduced variables in ngx_http_stub_status module.
Andrey Belov <defan@nginx.com>
parents:
4611
diff
changeset
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210 var = ngx_http_add_variable(cf, &v->name, v->flags); |
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1c472e3b8c10
Introduced variables in ngx_http_stub_status module.
Andrey Belov <defan@nginx.com>
parents:
4611
diff
changeset
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211 if (var == NULL) { |
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1c472e3b8c10
Introduced variables in ngx_http_stub_status module.
Andrey Belov <defan@nginx.com>
parents:
4611
diff
changeset
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212 return NGX_ERROR; |
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1c472e3b8c10
Introduced variables in ngx_http_stub_status module.
Andrey Belov <defan@nginx.com>
parents:
4611
diff
changeset
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213 } |
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1c472e3b8c10
Introduced variables in ngx_http_stub_status module.
Andrey Belov <defan@nginx.com>
parents:
4611
diff
changeset
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214 |
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1c472e3b8c10
Introduced variables in ngx_http_stub_status module.
Andrey Belov <defan@nginx.com>
parents:
4611
diff
changeset
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215 var->get_handler = v->get_handler; |
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1c472e3b8c10
Introduced variables in ngx_http_stub_status module.
Andrey Belov <defan@nginx.com>
parents:
4611
diff
changeset
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216 var->data = v->data; |
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1c472e3b8c10
Introduced variables in ngx_http_stub_status module.
Andrey Belov <defan@nginx.com>
parents:
4611
diff
changeset
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217 } |
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1c472e3b8c10
Introduced variables in ngx_http_stub_status module.
Andrey Belov <defan@nginx.com>
parents:
4611
diff
changeset
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218 |
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1c472e3b8c10
Introduced variables in ngx_http_stub_status module.
Andrey Belov <defan@nginx.com>
parents:
4611
diff
changeset
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219 return NGX_OK; |
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1c472e3b8c10
Introduced variables in ngx_http_stub_status module.
Andrey Belov <defan@nginx.com>
parents:
4611
diff
changeset
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220 } |
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1c472e3b8c10
Introduced variables in ngx_http_stub_status module.
Andrey Belov <defan@nginx.com>
parents:
4611
diff
changeset
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221 |
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1c472e3b8c10
Introduced variables in ngx_http_stub_status module.
Andrey Belov <defan@nginx.com>
parents:
4611
diff
changeset
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222 |
| 487 | 223 static char *ngx_http_set_status(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
| 224 { | |
| 225 ngx_http_core_loc_conf_t *clcf; | |
| 226 | |
| 227 clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module); | |
| 228 clcf->handler = ngx_http_status_handler; | |
| 229 | |
| 230 return NGX_CONF_OK; | |
| 231 } |