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