50
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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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5
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6
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
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9 #include <ngx_http.h>
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10 #include <nginx.h>
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11
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12
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13 static u_char *ngx_http_log_addr(ngx_http_request_t *r, u_char *buf,
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14 ngx_http_log_op_t *op);
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15 static u_char *ngx_http_log_connection(ngx_http_request_t *r, u_char *buf,
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16 ngx_http_log_op_t *op);
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17 static u_char *ngx_http_log_pipe(ngx_http_request_t *r, u_char *buf,
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18 ngx_http_log_op_t *op);
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19 static u_char *ngx_http_log_time(ngx_http_request_t *r, u_char *buf,
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20 ngx_http_log_op_t *op);
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21 static u_char *ngx_http_log_msec(ngx_http_request_t *r, u_char *buf,
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22 ngx_http_log_op_t *op);
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23 static u_char *ngx_http_log_request_time(ngx_http_request_t *r, u_char *buf,
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24 ngx_http_log_op_t *op);
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25 static u_char *ngx_http_log_status(ngx_http_request_t *r, u_char *buf,
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26 ngx_http_log_op_t *op);
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27 static u_char *ngx_http_log_length(ngx_http_request_t *r, u_char *buf,
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28 ngx_http_log_op_t *op);
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29 static u_char *ngx_http_log_apache_length(ngx_http_request_t *r, u_char *buf,
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30 ngx_http_log_op_t *op);
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31 static u_char *ngx_http_log_request_length(ngx_http_request_t *r, u_char *buf,
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32 ngx_http_log_op_t *op);
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33
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34 static size_t ngx_http_log_request_getlen(ngx_http_request_t *r,
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35 uintptr_t data);
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36 static u_char *ngx_http_log_request(ngx_http_request_t *r, u_char *buf,
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37 ngx_http_log_op_t *op);
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38
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39 static ngx_int_t ngx_http_log_header_in_compile(ngx_conf_t *cf,
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40 ngx_http_log_op_t *op, ngx_str_t *value);
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41 static size_t ngx_http_log_header_in_getlen(ngx_http_request_t *r,
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42 uintptr_t data);
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43 static u_char *ngx_http_log_header_in(ngx_http_request_t *r, u_char *buf,
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44 ngx_http_log_op_t *op);
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45 static size_t ngx_http_log_unknown_header_in_getlen(ngx_http_request_t *r,
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46 uintptr_t data);
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47 static u_char *ngx_http_log_unknown_header_in(ngx_http_request_t *r,
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48 u_char *buf, ngx_http_log_op_t *op);
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49
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50 static ngx_int_t ngx_http_log_header_out_compile(ngx_conf_t *cf,
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51 ngx_http_log_op_t *op, ngx_str_t *value);
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52 static size_t ngx_http_log_header_out_getlen(ngx_http_request_t *r,
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53 uintptr_t data);
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54 static u_char *ngx_http_log_header_out(ngx_http_request_t *r, u_char *buf,
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55 ngx_http_log_op_t *op);
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56 static size_t ngx_http_log_unknown_header_out_getlen(ngx_http_request_t *r,
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57 uintptr_t data);
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58 static u_char *ngx_http_log_unknown_header_out(ngx_http_request_t *r,
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59 u_char *buf, ngx_http_log_op_t *op);
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60
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61 static u_char *ngx_http_log_connection_header_out(ngx_http_request_t *r,
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62 u_char *buf, ngx_http_log_op_t *op);
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63 static u_char *ngx_http_log_transfer_encoding_header_out(ngx_http_request_t *r,
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64 u_char *buf, ngx_http_log_op_t *op);
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65
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66 static ngx_table_elt_t *ngx_http_log_unknown_header(ngx_list_t *headers,
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67 ngx_str_t *value);
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68
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69 static ngx_int_t ngx_http_log_variable_compile(ngx_conf_t *cf,
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70 ngx_http_log_op_t *op, ngx_str_t *value);
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71 static size_t ngx_http_log_variable_getlen(ngx_http_request_t *r,
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72 uintptr_t data);
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73 static u_char *ngx_http_log_variable(ngx_http_request_t *r, u_char *buf,
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74 ngx_http_log_op_t *op);
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75
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76
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77 static ngx_int_t ngx_http_log_set_formats(ngx_conf_t *cf);
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78 static void *ngx_http_log_create_main_conf(ngx_conf_t *cf);
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79 static void *ngx_http_log_create_loc_conf(ngx_conf_t *cf);
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80 static char *ngx_http_log_merge_loc_conf(ngx_conf_t *cf, void *parent,
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81 void *child);
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82 static char *ngx_http_log_set_log(ngx_conf_t *cf, ngx_command_t *cmd,
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83 void *conf);
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84 static char *ngx_http_log_set_format(ngx_conf_t *cf, ngx_command_t *cmd,
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85 void *conf);
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86
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87
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88 static ngx_command_t ngx_http_log_commands[] = {
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89
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90 { ngx_string("log_format"),
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91 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_2MORE,
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92 ngx_http_log_set_format,
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93 NGX_HTTP_MAIN_CONF_OFFSET,
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94 0,
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95 NULL },
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96
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97 { ngx_string("access_log"),
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98 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE12,
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99 ngx_http_log_set_log,
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100 NGX_HTTP_LOC_CONF_OFFSET,
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101 0,
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102 NULL },
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103
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104 ngx_null_command
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105 };
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106
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107
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108 ngx_http_module_t ngx_http_log_module_ctx = {
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58
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109 ngx_http_log_set_formats, /* preconfiguration */
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110 NULL, /* postconfiguration */
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111
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112 ngx_http_log_create_main_conf, /* create main configuration */
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113 NULL, /* init main configuration */
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114
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115 NULL, /* create server configuration */
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116 NULL, /* merge server configuration */
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117
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118 ngx_http_log_create_loc_conf, /* create location configration */
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119 ngx_http_log_merge_loc_conf /* merge location configration */
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120 };
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121
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122
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123 ngx_module_t ngx_http_log_module = {
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124 NGX_MODULE_V1,
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125 &ngx_http_log_module_ctx, /* module context */
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126 ngx_http_log_commands, /* module directives */
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127 NGX_HTTP_MODULE, /* module type */
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128 NULL, /* init module */
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129 NULL /* init process */
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130 };
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131
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132
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133 static ngx_str_t http_access_log = ngx_string(NGX_HTTP_LOG_PATH);
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134
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135
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136 static ngx_str_t ngx_http_combined_fmt =
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137 ngx_string("%addr - - [%time] \"%request\" %status %apache_length "
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138 "\"%{Referer}i\" \"%{User-Agent}i\"");
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139
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140
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141 ngx_http_log_op_name_t ngx_http_log_fmt_ops[] = {
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142 { ngx_string("addr"), INET_ADDRSTRLEN - 1, NULL, NULL, ngx_http_log_addr },
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143 { ngx_string("conn"), NGX_ATOMIC_T_LEN, NULL, NULL,
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144 ngx_http_log_connection },
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145 { ngx_string("pipe"), 1, NULL, NULL, ngx_http_log_pipe },
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146 { ngx_string("time"), sizeof("28/Sep/1970:12:00:00 +0600") - 1,
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147 NULL, NULL, ngx_http_log_time },
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148 { ngx_string("msec"), NGX_TIME_T_LEN + 4, NULL, NULL, ngx_http_log_msec },
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149 { ngx_string("request_time"), NGX_TIME_T_LEN, NULL, NULL,
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150 ngx_http_log_request_time },
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151 { ngx_string("status"), 3, NULL, NULL, ngx_http_log_status },
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152 { ngx_string("length"), NGX_OFF_T_LEN, NULL, NULL, ngx_http_log_length },
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153 { ngx_string("apache_length"), NGX_OFF_T_LEN,
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154 NULL, NULL, ngx_http_log_apache_length },
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155 { ngx_string("request_length"), NGX_SIZE_T_LEN,
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156 NULL, NULL, ngx_http_log_request_length },
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157
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158 { ngx_string("request"), 0, NULL,
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159 ngx_http_log_request_getlen,
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160 ngx_http_log_request },
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161
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162 { ngx_string("i"), 0, ngx_http_log_header_in_compile, NULL,
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163 ngx_http_log_header_in },
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164 { ngx_string("o"), 0, ngx_http_log_header_out_compile, NULL,
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165 ngx_http_log_header_out },
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166 { ngx_string("v"), 0, ngx_http_log_variable_compile, NULL,
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167 ngx_http_log_variable },
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168
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169 { ngx_null_string, 0, NULL, NULL, NULL }
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170 };
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171
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172
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173 ngx_int_t
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174 ngx_http_log_handler(ngx_http_request_t *r)
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175 {
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176 ngx_uint_t i, l;
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177 u_char *line, *p;
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178 size_t len;
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179 ngx_http_log_t *log;
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180 ngx_http_log_op_t *op;
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181 ngx_http_log_loc_conf_t *lcf;
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182 #if (NGX_WIN32)
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183 u_long written;
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184 #endif
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185
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186 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
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187 "http log handler");
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188
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189 lcf = ngx_http_get_module_loc_conf(r, ngx_http_log_module);
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190
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191 if (lcf->off) {
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192 return NGX_OK;
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193 }
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194
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195 log = lcf->logs->elts;
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196 for (l = 0; l < lcf->logs->nelts; l++) {
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197
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198 len = 0;
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199 op = log[l].ops->elts;
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200 for (i = 0; i < log[l].ops->nelts; i++) {
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201 if (op[i].len == 0) {
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202 len += op[i].getlen(r, op[i].data);
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203
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204 } else {
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205 len += op[i].len;
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206 }
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207 }
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208
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209 #if (NGX_WIN32)
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210 len += 2;
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211 #else
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212 len++;
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213 #endif
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214
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215 line = ngx_palloc(r->pool, len);
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216 if (line == NULL) {
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217 return NGX_ERROR;
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218 }
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219
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220 p = line;
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221
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222 for (i = 0; i < log[l].ops->nelts; i++) {
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223 p = op[i].run(r, p, &op[i]);
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224 }
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225
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226 #if (NGX_WIN32)
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227 *p++ = CR; *p++ = LF;
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228 WriteFile(log[l].file->fd, line, p - line, &written, NULL);
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229 #else
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230 *p++ = LF;
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231 write(log[l].file->fd, line, p - line);
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232 #endif
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233 }
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234
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235 return NGX_OK;
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236 }
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237
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238
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239 static u_char *
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240 ngx_http_log_copy_short(ngx_http_request_t *r, u_char *buf,
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241 ngx_http_log_op_t *op)
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242 {
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243 size_t len;
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244 uintptr_t data;
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245
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246 len = op->len;
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247 data = op->data;
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248
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249 while (len--) {
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250 *buf++ = (u_char) (data & 0xff);
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251 data >>= 8;
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252 }
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253
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254 return buf;
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255 }
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256
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257
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258 static u_char *
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259 ngx_http_log_copy_long(ngx_http_request_t *r, u_char *buf,
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260 ngx_http_log_op_t *op)
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261 {
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262 return ngx_cpymem(buf, (u_char *) op->data, op->len);
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263 }
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264
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265
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266 static u_char *
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267 ngx_http_log_addr(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op)
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268 {
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269 return ngx_cpymem(buf, r->connection->addr_text.data,
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270 r->connection->addr_text.len);
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271 }
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272
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273
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274 static u_char *
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275 ngx_http_log_connection(ngx_http_request_t *r, u_char *buf,
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276 ngx_http_log_op_t *op)
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277 {
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278 return ngx_sprintf(buf, "%ui", r->connection->number);
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279 }
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280
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281
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282 static u_char *
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283 ngx_http_log_pipe(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op)
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284 {
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285 if (r->pipeline) {
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286 *buf = 'p';
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287 } else {
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288 *buf = '.';
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289 }
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290
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291 return buf + 1;
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292 }
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293
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294
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295 static u_char *
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296 ngx_http_log_time(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op)
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297 {
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298 return ngx_cpymem(buf, ngx_cached_http_log_time.data,
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299 ngx_cached_http_log_time.len);
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300 }
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301
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302
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303 static u_char *
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304 ngx_http_log_msec(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op)
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305 {
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306 struct timeval tv;
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307
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308 ngx_gettimeofday(&tv);
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309
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310 return ngx_sprintf(buf, "%l.%03l", tv.tv_sec, tv.tv_usec / 1000);
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311 }
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312
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313
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314 static u_char *
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315 ngx_http_log_request_time(ngx_http_request_t *r, u_char *buf,
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316 ngx_http_log_op_t *op)
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317 {
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318 time_t elapsed;
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319
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320 elapsed = ngx_time() - r->start_time;
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321
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322 return ngx_sprintf(buf, "%T", elapsed);
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323 }
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324
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325
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326 static size_t
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327 ngx_http_log_request_getlen(ngx_http_request_t *r, uintptr_t data)
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328 {
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329 return r->request_line.len;
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330 }
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331
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332
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333 static u_char *
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334 ngx_http_log_request(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op)
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335 {
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336 return ngx_cpymem(buf, r->request_line.data, r->request_line.len);
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337 }
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338
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339
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340 static u_char *
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341 ngx_http_log_status(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op)
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342 {
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343 return ngx_sprintf(buf, "%ui",
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344 r->err_status ? r->err_status : r->headers_out.status);
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345 }
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346
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347
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348 static u_char *
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349 ngx_http_log_length(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op)
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350 {
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351 return ngx_sprintf(buf, "%O", r->connection->sent);
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352 }
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353
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354
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355 static u_char *
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356 ngx_http_log_apache_length(ngx_http_request_t *r, u_char *buf,
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357 ngx_http_log_op_t *op)
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358 {
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359 off_t length;
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360
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361 length = r->connection->sent - r->header_size;
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362
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363 if (length > 0) {
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364 return ngx_sprintf(buf, "%O", length);
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365 }
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366
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367 *buf = '0';
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368
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369 return buf + 1;
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370 }
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371
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372
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373 static u_char *
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374 ngx_http_log_request_length(ngx_http_request_t *r, u_char *buf,
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375 ngx_http_log_op_t *op)
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376 {
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377 return ngx_sprintf(buf, "%z", r->request_length);
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378 }
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379
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380
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381 static ngx_int_t
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382 ngx_http_log_header_in_compile(ngx_conf_t *cf, ngx_http_log_op_t *op,
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383 ngx_str_t *value)
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384 {
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385 ngx_uint_t i;
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386
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387 op->len = 0;
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388
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389 for (i = 0; ngx_http_headers_in[i].name.len != 0; i++) {
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390
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391 if (ngx_http_headers_in[i].name.len != value->len) {
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392 continue;
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393 }
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394
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58
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395 /* STUB: "Cookie" speacial handling */
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396 if (ngx_http_headers_in[i].offset == 0) {
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397 continue;
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398 }
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399
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50
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400 if (ngx_strncasecmp(ngx_http_headers_in[i].name.data, value->data,
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401 value->len) == 0)
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402 {
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403 op->getlen = ngx_http_log_header_in_getlen;
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404 op->run = ngx_http_log_header_in;
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405 op->data = ngx_http_headers_in[i].offset;
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406
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407 return NGX_OK;
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408 }
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409 }
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410
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411 op->getlen = ngx_http_log_unknown_header_in_getlen;
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412 op->run = ngx_http_log_unknown_header_in;
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413 op->data = (uintptr_t) value;
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414
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415 return NGX_OK;
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416 }
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417
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418
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419 static size_t
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420 ngx_http_log_header_in_getlen(ngx_http_request_t *r, uintptr_t data)
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421 {
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422 ngx_table_elt_t *h;
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423
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424 h = *(ngx_table_elt_t **) ((char *) &r->headers_in + data);
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425
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426 if (h) {
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427 return h->value.len;
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428 }
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429
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430 return 1;
|
|
431 }
|
|
432
|
|
433
|
|
434 static u_char *
|
|
435 ngx_http_log_header_in(ngx_http_request_t *r, u_char *buf,
|
|
436 ngx_http_log_op_t *op)
|
|
437 {
|
|
438 ngx_table_elt_t *h;
|
|
439
|
|
440 h = *(ngx_table_elt_t **) ((char *) &r->headers_in + op->data);
|
|
441
|
|
442 if (h) {
|
|
443 return ngx_cpymem(buf, h->value.data, h->value.len);
|
|
444 }
|
|
445
|
|
446 *buf = '-';
|
|
447
|
|
448 return buf + 1;
|
|
449 }
|
|
450
|
|
451
|
|
452 static size_t
|
|
453 ngx_http_log_unknown_header_in_getlen(ngx_http_request_t *r, uintptr_t data)
|
|
454 {
|
|
455 ngx_table_elt_t *h;
|
|
456
|
|
457 h = ngx_http_log_unknown_header(&r->headers_in.headers, (ngx_str_t *) data);
|
|
458
|
|
459 if (h) {
|
|
460 return h->value.len;
|
|
461 }
|
|
462
|
|
463 return 1;
|
|
464 }
|
|
465
|
|
466
|
|
467 static u_char *
|
|
468 ngx_http_log_unknown_header_in(ngx_http_request_t *r, u_char *buf,
|
|
469 ngx_http_log_op_t *op)
|
|
470 {
|
|
471 ngx_table_elt_t *h;
|
|
472
|
|
473 h = ngx_http_log_unknown_header(&r->headers_in.headers,
|
|
474 (ngx_str_t *) op->data);
|
|
475
|
|
476 if (h) {
|
|
477 return ngx_cpymem(buf, h->value.data, h->value.len);
|
|
478 }
|
|
479
|
|
480 *buf = '-';
|
|
481
|
|
482 return buf + 1;
|
|
483 }
|
|
484
|
|
485
|
|
486 static ngx_int_t
|
|
487 ngx_http_log_header_out_compile(ngx_conf_t *cf, ngx_http_log_op_t *op,
|
|
488 ngx_str_t *value)
|
|
489 {
|
|
490 ngx_uint_t i;
|
|
491
|
|
492 op->len = 0;
|
|
493
|
|
494 for (i = 0; ngx_http_headers_out[i].name.len != 0; i++) {
|
|
495
|
|
496 if (ngx_http_headers_out[i].name.len != value->len) {
|
|
497 continue;
|
|
498 }
|
|
499
|
|
500 if (ngx_strncasecmp(ngx_http_headers_out[i].name.data, value->data,
|
|
501 value->len) == 0)
|
|
502 {
|
|
503 op->getlen = ngx_http_log_header_out_getlen;
|
|
504 op->run = ngx_http_log_header_out;
|
|
505 op->data = ngx_http_headers_out[i].offset;
|
|
506
|
|
507 return NGX_OK;
|
|
508 }
|
|
509 }
|
|
510
|
|
511 if (value->len == sizeof("Connection") - 1
|
|
512 && ngx_strncasecmp(value->data, "Connection", value->len) == 0)
|
|
513 {
|
|
514 op->len = sizeof("keep-alive") - 1;
|
|
515 op->getlen = NULL;
|
|
516 op->run = ngx_http_log_connection_header_out;
|
|
517 op->data = 0;
|
|
518 return NGX_OK;
|
|
519 }
|
|
520
|
|
521 if (value->len == sizeof("Transfer-Encoding") - 1
|
|
522 && ngx_strncasecmp(value->data, "Transfer-Encoding", value->len) == 0)
|
|
523 {
|
|
524 op->len = sizeof("chunked") - 1;
|
|
525 op->getlen = NULL;
|
|
526 op->run = ngx_http_log_transfer_encoding_header_out;
|
|
527 op->data = 0;
|
|
528 return NGX_OK;
|
|
529 }
|
|
530
|
|
531 op->getlen = ngx_http_log_unknown_header_out_getlen;
|
|
532 op->run = ngx_http_log_unknown_header_out;
|
|
533 op->data = (uintptr_t) value;
|
|
534
|
|
535 return NGX_OK;
|
|
536 }
|
|
537
|
|
538
|
|
539 static size_t
|
|
540 ngx_http_log_header_out_getlen(ngx_http_request_t *r, uintptr_t data)
|
|
541 {
|
|
542 ngx_table_elt_t *h;
|
|
543
|
|
544 h = *(ngx_table_elt_t **) ((char *) &r->headers_out + data);
|
|
545
|
|
546 if (h) {
|
|
547 return h->value.len;
|
|
548 }
|
|
549
|
|
550 /*
|
|
551 * No header pointer was found.
|
|
552 * However, some headers: "Date", "Server", "Content-Length",
|
54
|
553 * and "Last-Modified" have a special handling in the header filter,
|
|
554 * but we do not set up their pointers in the filter,
|
|
555 * because they are too seldom needed to be logged.
|
50
|
556 */
|
|
557
|
|
558 if (data == offsetof(ngx_http_headers_out_t, date)) {
|
|
559 return ngx_cached_http_time.len;
|
|
560 }
|
|
561
|
|
562 if (data == offsetof(ngx_http_headers_out_t, server)) {
|
|
563 return (sizeof(NGINX_VER) - 1);
|
|
564 }
|
|
565
|
|
566 if (data == offsetof(ngx_http_headers_out_t, content_length)) {
|
|
567 if (r->headers_out.content_length_n == -1) {
|
|
568 return 1;
|
|
569 }
|
|
570
|
|
571 return NGX_OFF_T_LEN;
|
|
572 }
|
|
573
|
|
574 if (data == offsetof(ngx_http_headers_out_t, last_modified)) {
|
|
575 if (r->headers_out.last_modified_time == -1) {
|
|
576 return 1;
|
|
577 }
|
|
578
|
|
579 return sizeof("Mon, 28 Sep 1970 06:00:00 GMT") - 1;
|
|
580 }
|
|
581
|
|
582 return 1;
|
|
583 }
|
|
584
|
|
585
|
|
586 static u_char *
|
|
587 ngx_http_log_header_out(ngx_http_request_t *r, u_char *buf,
|
|
588 ngx_http_log_op_t *op)
|
|
589 {
|
|
590 ngx_table_elt_t *h;
|
|
591
|
|
592 h = *(ngx_table_elt_t **) ((char *) &r->headers_out + op->data);
|
|
593
|
|
594 if (h) {
|
|
595 return ngx_cpymem(buf, h->value.data, h->value.len);
|
|
596 }
|
|
597
|
|
598 /*
|
|
599 * No header pointer was found.
|
|
600 * However, some headers: "Date", "Server", "Content-Length",
|
54
|
601 * and "Last-Modified" have a special handling in the header filter,
|
|
602 * but we do not set up their pointers in the filter,
|
|
603 * because they are too seldom needed to be logged.
|
50
|
604 */
|
|
605
|
|
606 if (op->data == offsetof(ngx_http_headers_out_t, date)) {
|
|
607 return ngx_cpymem(buf, ngx_cached_http_time.data,
|
|
608 ngx_cached_http_time.len);
|
|
609 }
|
|
610
|
|
611 if (op->data == offsetof(ngx_http_headers_out_t, server)) {
|
|
612 return ngx_cpymem(buf, NGINX_VER, sizeof(NGINX_VER) - 1);
|
|
613 }
|
|
614
|
|
615 if (op->data == offsetof(ngx_http_headers_out_t, content_length)) {
|
|
616 if (r->headers_out.content_length_n == -1) {
|
|
617 *buf = '-';
|
|
618
|
|
619 return buf + 1;
|
|
620 }
|
|
621
|
|
622 return ngx_sprintf(buf, "%O", r->headers_out.content_length_n);
|
|
623 }
|
|
624
|
|
625 if (op->data == offsetof(ngx_http_headers_out_t, last_modified)) {
|
|
626 if (r->headers_out.last_modified_time == -1) {
|
|
627 *buf = '-';
|
|
628
|
|
629 return buf + 1;
|
|
630 }
|
|
631
|
|
632 return ngx_http_time(buf, r->headers_out.last_modified_time);
|
|
633 }
|
|
634
|
|
635 *buf = '-';
|
|
636
|
|
637 return buf + 1;
|
|
638 }
|
|
639
|
|
640
|
|
641 static size_t
|
|
642 ngx_http_log_unknown_header_out_getlen(ngx_http_request_t *r, uintptr_t data)
|
|
643 {
|
|
644 ngx_table_elt_t *h;
|
|
645
|
|
646 h = ngx_http_log_unknown_header(&r->headers_out.headers,
|
|
647 (ngx_str_t *) data);
|
|
648
|
|
649 if (h) {
|
|
650 return h->value.len;
|
|
651 }
|
|
652
|
|
653 return 1;
|
|
654 }
|
|
655
|
|
656
|
|
657 static u_char *
|
|
658 ngx_http_log_unknown_header_out(ngx_http_request_t *r, u_char *buf,
|
|
659 ngx_http_log_op_t *op)
|
|
660 {
|
|
661 ngx_table_elt_t *h;
|
|
662
|
|
663 h = ngx_http_log_unknown_header(&r->headers_out.headers,
|
|
664 (ngx_str_t *) op->data);
|
|
665
|
|
666 if (h) {
|
|
667 return ngx_cpymem(buf, h->value.data, h->value.len);
|
|
668 }
|
|
669
|
|
670 *buf = '-';
|
|
671
|
|
672 return buf + 1;
|
|
673 }
|
|
674
|
|
675
|
|
676 static ngx_table_elt_t *
|
|
677 ngx_http_log_unknown_header(ngx_list_t *headers, ngx_str_t *value)
|
|
678 {
|
|
679 ngx_uint_t i;
|
|
680 ngx_list_part_t *part;
|
|
681 ngx_table_elt_t *h;
|
|
682
|
|
683 part = &headers->part;
|
|
684 h = part->elts;
|
|
685
|
|
686 for (i = 0; /* void */; i++) {
|
|
687
|
|
688 if (i >= part->nelts) {
|
|
689 if (part->next == NULL) {
|
|
690 break;
|
|
691 }
|
|
692
|
|
693 part = part->next;
|
|
694 h = part->elts;
|
|
695 i = 0;
|
|
696 }
|
|
697
|
|
698 if (h[i].key.len != value->len) {
|
|
699 continue;
|
|
700 }
|
|
701
|
|
702 if (ngx_strncasecmp(h[i].key.data, value->data, value->len) == 0) {
|
|
703 return &h[i];
|
|
704 }
|
|
705 }
|
|
706
|
|
707 return NULL;
|
|
708 }
|
|
709
|
|
710
|
|
711 static u_char *
|
|
712 ngx_http_log_connection_header_out(ngx_http_request_t *r, u_char *buf,
|
|
713 ngx_http_log_op_t *op)
|
|
714 {
|
|
715 if (r->keepalive) {
|
|
716 return ngx_cpymem(buf, "keep-alive", sizeof("keep-alive") - 1);
|
|
717
|
|
718 } else {
|
|
719 return ngx_cpymem(buf, "close", sizeof("close") - 1);
|
|
720 }
|
|
721 }
|
|
722
|
|
723
|
|
724 static u_char *
|
|
725 ngx_http_log_transfer_encoding_header_out(ngx_http_request_t *r, u_char *buf,
|
|
726 ngx_http_log_op_t *op)
|
|
727 {
|
|
728 if (r->chunked) {
|
|
729 return ngx_cpymem(buf, "chunked", sizeof("chunked") - 1);
|
|
730 }
|
|
731
|
|
732 *buf = '-';
|
|
733
|
|
734 return buf + 1;
|
|
735 }
|
|
736
|
|
737
|
|
738 static ngx_int_t
|
|
739 ngx_http_log_variable_compile(ngx_conf_t *cf, ngx_http_log_op_t *op,
|
|
740 ngx_str_t *value)
|
|
741 {
|
58
|
742 ngx_int_t index;
|
50
|
743
|
58
|
744 index = ngx_http_get_variable_index(cf, value);
|
|
745 if (index == NGX_ERROR) {
|
50
|
746 return NGX_ERROR;
|
|
747 }
|
|
748
|
|
749 op->len = 0;
|
|
750 op->getlen = ngx_http_log_variable_getlen;
|
|
751 op->run = ngx_http_log_variable;
|
58
|
752 op->data = index;
|
50
|
753
|
|
754 return NGX_OK;
|
|
755 }
|
|
756
|
|
757
|
|
758 static size_t
|
|
759 ngx_http_log_variable_getlen(ngx_http_request_t *r, uintptr_t data)
|
|
760 {
|
|
761 ngx_http_variable_value_t *value;
|
|
762
|
|
763 value = ngx_http_get_indexed_variable(r, data);
|
|
764
|
|
765 if (value == NULL
|
58
|
766 || value == NGX_HTTP_VAR_NOT_FOUND
|
50
|
767 || value->text.len == 0)
|
|
768 {
|
|
769 return 1;
|
|
770 }
|
|
771
|
|
772 return value->text.len;
|
|
773 }
|
|
774
|
|
775
|
|
776 static u_char *
|
|
777 ngx_http_log_variable(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op)
|
|
778 {
|
|
779 ngx_http_variable_value_t *value;
|
|
780
|
|
781 value = ngx_http_get_indexed_variable(r, op->data);
|
|
782
|
|
783 if (value == NULL
|
58
|
784 || value == NGX_HTTP_VAR_NOT_FOUND
|
50
|
785 || value->text.len == 0)
|
|
786 {
|
|
787 *buf = '-';
|
|
788 return buf + 1;
|
|
789 }
|
|
790
|
|
791 return ngx_cpymem(buf, value->text.data, value->text.len);
|
|
792 }
|
|
793
|
|
794
|
|
795 static ngx_int_t
|
|
796 ngx_http_log_set_formats(ngx_conf_t *cf)
|
|
797 {
|
|
798 ngx_http_log_op_name_t *op;
|
|
799
|
|
800 for (op = ngx_http_log_fmt_ops; op->name.len; op++) { /* void */ }
|
|
801 op->run = NULL;
|
|
802
|
|
803 return NGX_OK;
|
|
804 }
|
|
805
|
|
806
|
|
807 static void *
|
|
808 ngx_http_log_create_main_conf(ngx_conf_t *cf)
|
|
809 {
|
|
810 ngx_http_log_main_conf_t *conf;
|
|
811
|
|
812 char *rc;
|
|
813 ngx_str_t *value;
|
|
814
|
|
815 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_log_main_conf_t));
|
|
816 if (conf == NULL) {
|
|
817 return NGX_CONF_ERROR;
|
|
818 }
|
|
819
|
|
820 if (ngx_array_init(&conf->formats, cf->pool, 4, sizeof(ngx_http_log_fmt_t))
|
|
821 == NGX_ERROR)
|
|
822 {
|
|
823 return NGX_CONF_ERROR;
|
|
824 }
|
|
825
|
|
826 cf->args->nelts = 0;
|
|
827
|
|
828 value = ngx_array_push(cf->args);
|
|
829 if (value == NULL) {
|
|
830 return NGX_CONF_ERROR;
|
|
831 }
|
|
832
|
|
833 value = ngx_array_push(cf->args);
|
|
834 if (value == NULL) {
|
|
835 return NGX_CONF_ERROR;
|
|
836 }
|
|
837
|
|
838 value->len = sizeof("combined") - 1;
|
|
839 value->data = (u_char *) "combined";
|
|
840
|
|
841 value = ngx_array_push(cf->args);
|
|
842 if (value == NULL) {
|
|
843 return NGX_CONF_ERROR;
|
|
844 }
|
|
845
|
|
846 *value = ngx_http_combined_fmt;
|
|
847
|
|
848 rc = ngx_http_log_set_format(cf, NULL, conf);
|
|
849 if (rc != NGX_CONF_OK) {
|
|
850 return NULL;
|
|
851 }
|
|
852
|
|
853 return conf;
|
|
854 }
|
|
855
|
|
856
|
|
857 static void *
|
|
858 ngx_http_log_create_loc_conf(ngx_conf_t *cf)
|
|
859 {
|
|
860 ngx_http_log_loc_conf_t *conf;
|
|
861
|
|
862 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_log_loc_conf_t));
|
|
863 if (conf == NULL) {
|
|
864 return NGX_CONF_ERROR;
|
|
865 }
|
|
866
|
|
867 return conf;
|
|
868 }
|
|
869
|
|
870
|
|
871 static char *
|
|
872 ngx_http_log_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child)
|
|
873 {
|
|
874 ngx_http_log_loc_conf_t *prev = parent;
|
|
875 ngx_http_log_loc_conf_t *conf = child;
|
|
876
|
|
877 ngx_http_log_t *log;
|
|
878 ngx_http_log_fmt_t *fmt;
|
|
879 ngx_http_log_main_conf_t *lmcf;
|
|
880
|
|
881 if (conf->logs == NULL) {
|
|
882
|
|
883 if (conf->off) {
|
|
884 return NGX_CONF_OK;
|
|
885 }
|
|
886
|
|
887 if (prev->logs) {
|
|
888 conf->logs = prev->logs;
|
|
889
|
|
890 } else {
|
|
891
|
|
892 if (prev->off) {
|
|
893 conf->off = prev->off;
|
|
894 return NGX_CONF_OK;
|
|
895 }
|
|
896
|
|
897 conf->logs = ngx_array_create(cf->pool, 2, sizeof(ngx_http_log_t));
|
|
898 if (conf->logs == NULL) {
|
|
899 return NGX_CONF_ERROR;
|
|
900 }
|
|
901
|
|
902 log = ngx_array_push(conf->logs);
|
|
903 if (log == NULL) {
|
|
904 return NGX_CONF_ERROR;
|
|
905 }
|
|
906
|
|
907 log->file = ngx_conf_open_file(cf->cycle, &http_access_log);
|
|
908 if (log->file == NULL) {
|
|
909 return NGX_CONF_ERROR;
|
|
910 }
|
|
911
|
|
912 lmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_log_module);
|
|
913 fmt = lmcf->formats.elts;
|
|
914
|
|
915 /* the default "combined" format */
|
|
916 log->ops = fmt[0].ops;
|
|
917 }
|
|
918 }
|
|
919
|
|
920 return NGX_CONF_OK;
|
|
921 }
|
|
922
|
|
923
|
|
924 static char *
|
|
925 ngx_http_log_set_log(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
926 {
|
|
927 ngx_http_log_loc_conf_t *llcf = conf;
|
|
928
|
|
929 ngx_uint_t i;
|
|
930 ngx_str_t *value, name;
|
|
931 ngx_http_log_t *log;
|
|
932 ngx_http_log_fmt_t *fmt;
|
|
933 ngx_http_log_main_conf_t *lmcf;
|
|
934
|
|
935 value = cf->args->elts;
|
|
936
|
|
937 if (ngx_strcmp(value[1].data, "off") == 0) {
|
|
938 llcf->off = 1;
|
|
939 return NGX_CONF_OK;
|
|
940 }
|
|
941
|
|
942 if (llcf->logs == NULL) {
|
|
943 llcf->logs = ngx_array_create(cf->pool, 2, sizeof(ngx_http_log_t));
|
|
944 if (llcf->logs == NULL) {
|
|
945 return NGX_CONF_ERROR;
|
|
946 }
|
|
947 }
|
|
948
|
|
949 lmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_log_module);
|
|
950
|
|
951 log = ngx_array_push(llcf->logs);
|
|
952 if (log == NULL) {
|
|
953 return NGX_CONF_ERROR;
|
|
954 }
|
|
955
|
|
956 log->file = ngx_conf_open_file(cf->cycle, &value[1]);
|
|
957 if (log->file == NULL) {
|
|
958 return NGX_CONF_ERROR;
|
|
959 }
|
|
960
|
|
961 if (cf->args->nelts == 3) {
|
|
962 name = value[2];
|
|
963 } else {
|
|
964 name.len = sizeof("combined") - 1;
|
|
965 name.data = (u_char *) "combined";
|
|
966 }
|
|
967
|
|
968 fmt = lmcf->formats.elts;
|
|
969 for (i = 0; i < lmcf->formats.nelts; i++) {
|
|
970 if (fmt[i].name.len == name.len
|
|
971 && ngx_strcasecmp(fmt[i].name.data, name.data) == 0)
|
|
972 {
|
|
973 log->ops = fmt[i].ops;
|
|
974 return NGX_CONF_OK;
|
|
975 }
|
|
976 }
|
|
977
|
|
978 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
979 "unknown log format \"%V\"", &name);
|
|
980
|
|
981 return NGX_CONF_ERROR;
|
|
982 }
|
|
983
|
|
984
|
|
985 static char *
|
|
986 ngx_http_log_set_format(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
987 {
|
|
988 ngx_http_log_main_conf_t *lmcf = conf;
|
|
989
|
|
990 ngx_uint_t s, f, invalid;
|
|
991 u_char *data, *p, *fname;
|
|
992 size_t i, len, fname_len;
|
|
993 ngx_str_t *value, arg, *a;
|
|
994 ngx_http_log_op_t *op;
|
|
995 ngx_http_log_fmt_t *fmt;
|
|
996 ngx_http_log_op_name_t *name;
|
|
997
|
|
998 value = cf->args->elts;
|
|
999
|
|
1000 fmt = lmcf->formats.elts;
|
|
1001 for (f = 0; f < lmcf->formats.nelts; f++) {
|
|
1002 if (fmt[f].name.len == value[1].len
|
|
1003 && ngx_strcmp(fmt->name.data, value[1].data) == 0)
|
|
1004 {
|
|
1005 return "duplicate \"log_format\" name";
|
|
1006 }
|
|
1007 }
|
|
1008
|
|
1009 fmt = ngx_array_push(&lmcf->formats);
|
|
1010 if (fmt == NULL) {
|
|
1011 return NGX_CONF_ERROR;
|
|
1012 }
|
|
1013
|
|
1014 fmt->name = value[1];
|
|
1015
|
|
1016 fmt->ops = ngx_array_create(cf->pool, 20, sizeof(ngx_http_log_op_t));
|
|
1017 if (fmt->ops == NULL) {
|
|
1018 return NGX_CONF_ERROR;
|
|
1019 }
|
|
1020
|
|
1021 invalid = 0;
|
|
1022 data = NULL;
|
|
1023 arg.data = NULL;
|
|
1024
|
|
1025 for (s = 2; s < cf->args->nelts && !invalid; s++) {
|
|
1026
|
|
1027 i = 0;
|
|
1028
|
|
1029 while (i < value[s].len) {
|
|
1030
|
|
1031 op = ngx_array_push(fmt->ops);
|
|
1032 if (op == NULL) {
|
|
1033 return NGX_CONF_ERROR;
|
|
1034 }
|
|
1035
|
|
1036 data = &value[s].data[i];
|
|
1037
|
|
1038 if (value[s].data[i] == '%') {
|
|
1039 i++;
|
|
1040
|
|
1041 if (i == value[s].len) {
|
|
1042 invalid = 1;
|
|
1043 break;
|
|
1044 }
|
|
1045
|
|
1046 if (value[s].data[i] == '{') {
|
|
1047 i++;
|
|
1048
|
|
1049 arg.data = &value[s].data[i];
|
|
1050
|
|
1051 while (i < value[s].len && value[s].data[i] != '}') {
|
|
1052 i++;
|
|
1053 }
|
|
1054
|
|
1055 arg.len = &value[s].data[i] - arg.data;
|
|
1056
|
|
1057 if (i == value[s].len || arg.len == 0) {
|
|
1058 invalid = 1;
|
|
1059 break;
|
|
1060 }
|
|
1061
|
|
1062 i++;
|
|
1063
|
|
1064 } else {
|
|
1065 arg.len = 0;
|
|
1066 }
|
|
1067
|
|
1068 fname = &value[s].data[i];
|
|
1069
|
|
1070 while (i < value[s].len
|
|
1071 && ((value[s].data[i] >= 'a' && value[s].data[i] <= 'z')
|
|
1072 || value[s].data[i] == '_'))
|
|
1073 {
|
|
1074 i++;
|
|
1075 }
|
|
1076
|
|
1077 fname_len = &value[s].data[i] - fname;
|
|
1078
|
|
1079 if (fname_len == 0) {
|
|
1080 invalid = 1;
|
|
1081 break;
|
|
1082 }
|
|
1083
|
|
1084 for (name = ngx_http_log_fmt_ops; name->run; name++) {
|
|
1085 if (name->name.len == 0) {
|
|
1086 name = (ngx_http_log_op_name_t *) name->run;
|
|
1087 }
|
|
1088
|
|
1089 if (name->name.len == fname_len
|
|
1090 && ngx_strncmp(name->name.data, fname, fname_len) == 0)
|
|
1091 {
|
|
1092 if (name->compile == NULL) {
|
|
1093 if (arg.len) {
|
|
1094 fname[fname_len] = '\0';
|
|
1095 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
1096 "\"%s\" must not have argument",
|
|
1097 data);
|
|
1098 return NGX_CONF_ERROR;
|
|
1099 }
|
|
1100
|
|
1101 op->len = name->len;
|
|
1102 op->getlen = name->getlen;
|
|
1103 op->run = name->run;
|
|
1104 op->data = 0;
|
|
1105
|
|
1106 break;
|
|
1107 }
|
|
1108
|
|
1109 if (arg.len == 0) {
|
|
1110 fname[fname_len] = '\0';
|
|
1111 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
1112 "\"%s\" requires argument",
|
|
1113 data);
|
|
1114 return NGX_CONF_ERROR;
|
|
1115 }
|
|
1116
|
|
1117 a = ngx_palloc(cf->pool, sizeof(ngx_str_t));
|
|
1118 if (a == NULL) {
|
|
1119 return NGX_CONF_ERROR;
|
|
1120 }
|
|
1121
|
|
1122 *a = arg;
|
|
1123 if (name->compile(cf, op, a) == NGX_ERROR) {
|
|
1124 return NGX_CONF_ERROR;
|
|
1125 }
|
|
1126
|
|
1127 break;
|
|
1128 }
|
|
1129 }
|
|
1130
|
|
1131 if (name->name.len == 0) {
|
|
1132 invalid = 1;
|
|
1133 break;
|
|
1134 }
|
|
1135
|
|
1136 } else {
|
|
1137 i++;
|
|
1138
|
|
1139 while (i < value[s].len && value[s].data[i] != '%') {
|
|
1140 i++;
|
|
1141 }
|
|
1142
|
|
1143 len = &value[s].data[i] - data;
|
|
1144
|
|
1145 if (len) {
|
|
1146
|
|
1147 op->len = len;
|
|
1148 op->getlen = NULL;
|
|
1149
|
|
1150 if (len <= sizeof(uintptr_t)) {
|
|
1151 op->run = ngx_http_log_copy_short;
|
|
1152 op->data = 0;
|
|
1153
|
|
1154 while (len--) {
|
|
1155 op->data <<= 8;
|
|
1156 op->data |= data[len];
|
|
1157 }
|
|
1158
|
|
1159 } else {
|
|
1160 op->run = ngx_http_log_copy_long;
|
|
1161
|
|
1162 p = ngx_palloc(cf->pool, len);
|
|
1163 if (p == NULL) {
|
|
1164 return NGX_CONF_ERROR;
|
|
1165 }
|
|
1166
|
|
1167 ngx_memcpy(p, data, len);
|
|
1168 op->data = (uintptr_t) p;
|
|
1169 }
|
|
1170 }
|
|
1171 }
|
|
1172 }
|
|
1173 }
|
|
1174
|
|
1175 if (invalid) {
|
|
1176 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
1177 "invalid parameter \"%s\"", data);
|
|
1178 return NGX_CONF_ERROR;
|
|
1179 }
|
|
1180
|
|
1181 return NGX_CONF_OK;
|
|
1182 }
|