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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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58
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109 ngx_http_log_set_formats, /* preconfiguration */
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110 NULL, /* postconfiguration */
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50
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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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58
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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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90
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128 NULL, /* init master */
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129 NULL, /* init module */
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90
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130 NULL, /* init process */
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131 NULL, /* init thread */
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132 NULL, /* exit thread */
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133 NULL, /* exit process */
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134 NULL, /* exit master */
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135 NGX_MODULE_V1_PADDING
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50
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136 };
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137
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138
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139 static ngx_str_t http_access_log = ngx_string(NGX_HTTP_LOG_PATH);
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140
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141
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142 static ngx_str_t ngx_http_combined_fmt =
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143 ngx_string("%addr - - [%time] \"%request\" %status %apache_length "
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144 "\"%{Referer}i\" \"%{User-Agent}i\"");
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145
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146
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147 ngx_http_log_op_name_t ngx_http_log_fmt_ops[] = {
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148 { ngx_string("addr"), INET_ADDRSTRLEN - 1, NULL, NULL, ngx_http_log_addr },
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149 { ngx_string("conn"), NGX_ATOMIC_T_LEN, NULL, NULL,
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150 ngx_http_log_connection },
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151 { ngx_string("pipe"), 1, NULL, NULL, ngx_http_log_pipe },
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152 { ngx_string("time"), sizeof("28/Sep/1970:12:00:00 +0600") - 1,
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153 NULL, NULL, ngx_http_log_time },
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154 { ngx_string("msec"), NGX_TIME_T_LEN + 4, NULL, NULL, ngx_http_log_msec },
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155 { ngx_string("request_time"), NGX_TIME_T_LEN, NULL, NULL,
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156 ngx_http_log_request_time },
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157 { ngx_string("status"), 3, NULL, NULL, ngx_http_log_status },
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158 { ngx_string("length"), NGX_OFF_T_LEN, NULL, NULL, ngx_http_log_length },
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159 { ngx_string("apache_length"), NGX_OFF_T_LEN,
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160 NULL, NULL, ngx_http_log_apache_length },
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161 { ngx_string("request_length"), NGX_SIZE_T_LEN,
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162 NULL, NULL, ngx_http_log_request_length },
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163
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164 { ngx_string("request"), 0, NULL,
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165 ngx_http_log_request_getlen,
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166 ngx_http_log_request },
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167
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168 { ngx_string("i"), 0, ngx_http_log_header_in_compile, NULL,
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169 ngx_http_log_header_in },
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170 { ngx_string("o"), 0, ngx_http_log_header_out_compile, NULL,
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171 ngx_http_log_header_out },
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172 { ngx_string("v"), 0, ngx_http_log_variable_compile, NULL,
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173 ngx_http_log_variable },
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174
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175 { ngx_null_string, 0, NULL, NULL, NULL }
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176 };
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177
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178
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179 ngx_int_t
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180 ngx_http_log_handler(ngx_http_request_t *r)
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181 {
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182 ngx_uint_t i, l;
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183 u_char *line, *p;
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184 size_t len;
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185 ngx_http_log_t *log;
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186 ngx_http_log_op_t *op;
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187 ngx_http_log_loc_conf_t *lcf;
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188 #if (NGX_WIN32)
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189 u_long written;
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190 #endif
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191
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192 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
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193 "http log handler");
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194
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195 lcf = ngx_http_get_module_loc_conf(r, ngx_http_log_module);
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196
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197 if (lcf->off) {
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198 return NGX_OK;
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199 }
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200
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201 log = lcf->logs->elts;
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202 for (l = 0; l < lcf->logs->nelts; l++) {
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203
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204 len = 0;
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205 op = log[l].ops->elts;
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206 for (i = 0; i < log[l].ops->nelts; i++) {
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207 if (op[i].len == 0) {
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208 len += op[i].getlen(r, op[i].data);
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209
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210 } else {
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211 len += op[i].len;
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212 }
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213 }
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214
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215 #if (NGX_WIN32)
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216 len += 2;
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217 #else
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218 len++;
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219 #endif
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220
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221 line = ngx_palloc(r->pool, len);
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222 if (line == NULL) {
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223 return NGX_ERROR;
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224 }
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225
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226 p = line;
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227
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228 for (i = 0; i < log[l].ops->nelts; i++) {
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229 p = op[i].run(r, p, &op[i]);
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230 }
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231
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232 #if (NGX_WIN32)
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233 *p++ = CR; *p++ = LF;
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234 WriteFile(log[l].file->fd, line, p - line, &written, NULL);
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235 #else
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236 *p++ = LF;
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237 write(log[l].file->fd, line, p - line);
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238 #endif
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239 }
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240
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241 return NGX_OK;
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242 }
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243
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244
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245 static u_char *
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246 ngx_http_log_copy_short(ngx_http_request_t *r, u_char *buf,
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247 ngx_http_log_op_t *op)
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248 {
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249 size_t len;
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250 uintptr_t data;
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251
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252 len = op->len;
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253 data = op->data;
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254
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255 while (len--) {
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256 *buf++ = (u_char) (data & 0xff);
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257 data >>= 8;
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258 }
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259
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260 return buf;
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261 }
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262
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263
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264 static u_char *
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265 ngx_http_log_copy_long(ngx_http_request_t *r, u_char *buf,
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266 ngx_http_log_op_t *op)
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267 {
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268 return ngx_cpymem(buf, (u_char *) op->data, op->len);
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269 }
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270
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271
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272 static u_char *
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273 ngx_http_log_addr(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op)
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274 {
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275 return ngx_cpymem(buf, r->connection->addr_text.data,
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276 r->connection->addr_text.len);
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277 }
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278
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279
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280 static u_char *
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281 ngx_http_log_connection(ngx_http_request_t *r, u_char *buf,
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282 ngx_http_log_op_t *op)
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283 {
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284 return ngx_sprintf(buf, "%ui", r->connection->number);
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285 }
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286
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287
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288 static u_char *
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289 ngx_http_log_pipe(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op)
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290 {
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291 if (r->pipeline) {
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292 *buf = 'p';
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293 } else {
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294 *buf = '.';
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295 }
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296
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297 return buf + 1;
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298 }
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299
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300
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301 static u_char *
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302 ngx_http_log_time(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op)
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303 {
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304 return ngx_cpymem(buf, ngx_cached_http_log_time.data,
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305 ngx_cached_http_log_time.len);
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306 }
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307
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308
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309 static u_char *
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310 ngx_http_log_msec(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op)
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311 {
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312 struct timeval tv;
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313
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314 ngx_gettimeofday(&tv);
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315
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316 return ngx_sprintf(buf, "%l.%03l", tv.tv_sec, tv.tv_usec / 1000);
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317 }
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318
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319
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320 static u_char *
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321 ngx_http_log_request_time(ngx_http_request_t *r, u_char *buf,
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322 ngx_http_log_op_t *op)
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323 {
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324 time_t elapsed;
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325
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326 elapsed = ngx_time() - r->start_time;
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327
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328 return ngx_sprintf(buf, "%T", elapsed);
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329 }
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330
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331
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332 static size_t
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333 ngx_http_log_request_getlen(ngx_http_request_t *r, uintptr_t data)
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334 {
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335 return 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_request(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_cpymem(buf, r->request_line.data, r->request_line.len);
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343 }
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344
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345
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346 static u_char *
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347 ngx_http_log_status(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op)
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348 {
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349 return ngx_sprintf(buf, "%ui",
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350 r->err_status ? r->err_status : r->headers_out.status);
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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_length(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op)
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356 {
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357 return ngx_sprintf(buf, "%O", r->connection->sent);
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358 }
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359
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360
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361 static u_char *
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362 ngx_http_log_apache_length(ngx_http_request_t *r, u_char *buf,
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|
|
363 ngx_http_log_op_t *op)
|
|
|
364 {
|
|
|
365 off_t length;
|
|
|
366
|
|
|
367 length = r->connection->sent - r->header_size;
|
|
|
368
|
|
|
369 if (length > 0) {
|
|
|
370 return ngx_sprintf(buf, "%O", length);
|
|
|
371 }
|
|
|
372
|
|
|
373 *buf = '0';
|
|
|
374
|
|
|
375 return buf + 1;
|
|
|
376 }
|
|
|
377
|
|
|
378
|
|
|
379 static u_char *
|
|
|
380 ngx_http_log_request_length(ngx_http_request_t *r, u_char *buf,
|
|
|
381 ngx_http_log_op_t *op)
|
|
|
382 {
|
|
|
383 return ngx_sprintf(buf, "%z", r->request_length);
|
|
|
384 }
|
|
|
385
|
|
|
386
|
|
|
387 static ngx_int_t
|
|
|
388 ngx_http_log_header_in_compile(ngx_conf_t *cf, ngx_http_log_op_t *op,
|
|
|
389 ngx_str_t *value)
|
|
|
390 {
|
|
|
391 ngx_uint_t i;
|
|
|
392
|
|
|
393 op->len = 0;
|
|
|
394
|
|
|
395 for (i = 0; ngx_http_headers_in[i].name.len != 0; i++) {
|
|
|
396
|
|
|
397 if (ngx_http_headers_in[i].name.len != value->len) {
|
|
|
398 continue;
|
|
|
399 }
|
|
|
400
|
|
58
|
401 /* STUB: "Cookie" speacial handling */
|
|
|
402 if (ngx_http_headers_in[i].offset == 0) {
|
|
|
403 continue;
|
|
|
404 }
|
|
|
405
|
|
50
|
406 if (ngx_strncasecmp(ngx_http_headers_in[i].name.data, value->data,
|
|
|
407 value->len) == 0)
|
|
|
408 {
|
|
|
409 op->getlen = ngx_http_log_header_in_getlen;
|
|
|
410 op->run = ngx_http_log_header_in;
|
|
|
411 op->data = ngx_http_headers_in[i].offset;
|
|
|
412
|
|
|
413 return NGX_OK;
|
|
|
414 }
|
|
|
415 }
|
|
|
416
|
|
|
417 op->getlen = ngx_http_log_unknown_header_in_getlen;
|
|
|
418 op->run = ngx_http_log_unknown_header_in;
|
|
|
419 op->data = (uintptr_t) value;
|
|
|
420
|
|
|
421 return NGX_OK;
|
|
|
422 }
|
|
|
423
|
|
|
424
|
|
|
425 static size_t
|
|
|
426 ngx_http_log_header_in_getlen(ngx_http_request_t *r, uintptr_t data)
|
|
|
427 {
|
|
|
428 ngx_table_elt_t *h;
|
|
|
429
|
|
|
430 h = *(ngx_table_elt_t **) ((char *) &r->headers_in + data);
|
|
|
431
|
|
|
432 if (h) {
|
|
|
433 return h->value.len;
|
|
|
434 }
|
|
|
435
|
|
|
436 return 1;
|
|
|
437 }
|
|
|
438
|
|
|
439
|
|
|
440 static u_char *
|
|
|
441 ngx_http_log_header_in(ngx_http_request_t *r, u_char *buf,
|
|
|
442 ngx_http_log_op_t *op)
|
|
|
443 {
|
|
|
444 ngx_table_elt_t *h;
|
|
|
445
|
|
|
446 h = *(ngx_table_elt_t **) ((char *) &r->headers_in + op->data);
|
|
|
447
|
|
|
448 if (h) {
|
|
|
449 return ngx_cpymem(buf, h->value.data, h->value.len);
|
|
|
450 }
|
|
|
451
|
|
|
452 *buf = '-';
|
|
|
453
|
|
|
454 return buf + 1;
|
|
|
455 }
|
|
|
456
|
|
|
457
|
|
|
458 static size_t
|
|
|
459 ngx_http_log_unknown_header_in_getlen(ngx_http_request_t *r, uintptr_t data)
|
|
|
460 {
|
|
|
461 ngx_table_elt_t *h;
|
|
|
462
|
|
|
463 h = ngx_http_log_unknown_header(&r->headers_in.headers, (ngx_str_t *) data);
|
|
|
464
|
|
|
465 if (h) {
|
|
|
466 return h->value.len;
|
|
|
467 }
|
|
|
468
|
|
|
469 return 1;
|
|
|
470 }
|
|
|
471
|
|
|
472
|
|
|
473 static u_char *
|
|
|
474 ngx_http_log_unknown_header_in(ngx_http_request_t *r, u_char *buf,
|
|
|
475 ngx_http_log_op_t *op)
|
|
|
476 {
|
|
|
477 ngx_table_elt_t *h;
|
|
|
478
|
|
|
479 h = ngx_http_log_unknown_header(&r->headers_in.headers,
|
|
|
480 (ngx_str_t *) op->data);
|
|
|
481
|
|
|
482 if (h) {
|
|
|
483 return ngx_cpymem(buf, h->value.data, h->value.len);
|
|
|
484 }
|
|
|
485
|
|
|
486 *buf = '-';
|
|
|
487
|
|
|
488 return buf + 1;
|
|
|
489 }
|
|
|
490
|
|
|
491
|
|
|
492 static ngx_int_t
|
|
|
493 ngx_http_log_header_out_compile(ngx_conf_t *cf, ngx_http_log_op_t *op,
|
|
|
494 ngx_str_t *value)
|
|
|
495 {
|
|
|
496 ngx_uint_t i;
|
|
|
497
|
|
|
498 op->len = 0;
|
|
|
499
|
|
|
500 for (i = 0; ngx_http_headers_out[i].name.len != 0; i++) {
|
|
|
501
|
|
|
502 if (ngx_http_headers_out[i].name.len != value->len) {
|
|
|
503 continue;
|
|
|
504 }
|
|
|
505
|
|
|
506 if (ngx_strncasecmp(ngx_http_headers_out[i].name.data, value->data,
|
|
|
507 value->len) == 0)
|
|
|
508 {
|
|
|
509 op->getlen = ngx_http_log_header_out_getlen;
|
|
|
510 op->run = ngx_http_log_header_out;
|
|
|
511 op->data = ngx_http_headers_out[i].offset;
|
|
|
512
|
|
|
513 return NGX_OK;
|
|
|
514 }
|
|
|
515 }
|
|
|
516
|
|
|
517 if (value->len == sizeof("Connection") - 1
|
|
|
518 && ngx_strncasecmp(value->data, "Connection", value->len) == 0)
|
|
|
519 {
|
|
|
520 op->len = sizeof("keep-alive") - 1;
|
|
|
521 op->getlen = NULL;
|
|
|
522 op->run = ngx_http_log_connection_header_out;
|
|
|
523 op->data = 0;
|
|
|
524 return NGX_OK;
|
|
|
525 }
|
|
|
526
|
|
|
527 if (value->len == sizeof("Transfer-Encoding") - 1
|
|
|
528 && ngx_strncasecmp(value->data, "Transfer-Encoding", value->len) == 0)
|
|
|
529 {
|
|
|
530 op->len = sizeof("chunked") - 1;
|
|
|
531 op->getlen = NULL;
|
|
|
532 op->run = ngx_http_log_transfer_encoding_header_out;
|
|
|
533 op->data = 0;
|
|
|
534 return NGX_OK;
|
|
|
535 }
|
|
|
536
|
|
|
537 op->getlen = ngx_http_log_unknown_header_out_getlen;
|
|
|
538 op->run = ngx_http_log_unknown_header_out;
|
|
|
539 op->data = (uintptr_t) value;
|
|
|
540
|
|
|
541 return NGX_OK;
|
|
|
542 }
|
|
|
543
|
|
|
544
|
|
|
545 static size_t
|
|
|
546 ngx_http_log_header_out_getlen(ngx_http_request_t *r, uintptr_t data)
|
|
|
547 {
|
|
|
548 ngx_table_elt_t *h;
|
|
|
549
|
|
|
550 h = *(ngx_table_elt_t **) ((char *) &r->headers_out + data);
|
|
|
551
|
|
|
552 if (h) {
|
|
|
553 return h->value.len;
|
|
|
554 }
|
|
|
555
|
|
|
556 /*
|
|
|
557 * No header pointer was found.
|
|
|
558 * However, some headers: "Date", "Server", "Content-Length",
|
|
54
|
559 * and "Last-Modified" have a special handling in the header filter,
|
|
|
560 * but we do not set up their pointers in the filter,
|
|
|
561 * because they are too seldom needed to be logged.
|
|
50
|
562 */
|
|
|
563
|
|
|
564 if (data == offsetof(ngx_http_headers_out_t, date)) {
|
|
|
565 return ngx_cached_http_time.len;
|
|
|
566 }
|
|
|
567
|
|
|
568 if (data == offsetof(ngx_http_headers_out_t, server)) {
|
|
|
569 return (sizeof(NGINX_VER) - 1);
|
|
|
570 }
|
|
|
571
|
|
|
572 if (data == offsetof(ngx_http_headers_out_t, content_length)) {
|
|
|
573 if (r->headers_out.content_length_n == -1) {
|
|
|
574 return 1;
|
|
|
575 }
|
|
|
576
|
|
|
577 return NGX_OFF_T_LEN;
|
|
|
578 }
|
|
|
579
|
|
|
580 if (data == offsetof(ngx_http_headers_out_t, last_modified)) {
|
|
|
581 if (r->headers_out.last_modified_time == -1) {
|
|
|
582 return 1;
|
|
|
583 }
|
|
|
584
|
|
|
585 return sizeof("Mon, 28 Sep 1970 06:00:00 GMT") - 1;
|
|
|
586 }
|
|
|
587
|
|
|
588 return 1;
|
|
|
589 }
|
|
|
590
|
|
|
591
|
|
|
592 static u_char *
|
|
|
593 ngx_http_log_header_out(ngx_http_request_t *r, u_char *buf,
|
|
|
594 ngx_http_log_op_t *op)
|
|
|
595 {
|
|
|
596 ngx_table_elt_t *h;
|
|
|
597
|
|
|
598 h = *(ngx_table_elt_t **) ((char *) &r->headers_out + op->data);
|
|
|
599
|
|
|
600 if (h) {
|
|
|
601 return ngx_cpymem(buf, h->value.data, h->value.len);
|
|
|
602 }
|
|
|
603
|
|
|
604 /*
|
|
|
605 * No header pointer was found.
|
|
|
606 * However, some headers: "Date", "Server", "Content-Length",
|
|
54
|
607 * and "Last-Modified" have a special handling in the header filter,
|
|
|
608 * but we do not set up their pointers in the filter,
|
|
|
609 * because they are too seldom needed to be logged.
|
|
50
|
610 */
|
|
|
611
|
|
|
612 if (op->data == offsetof(ngx_http_headers_out_t, date)) {
|
|
|
613 return ngx_cpymem(buf, ngx_cached_http_time.data,
|
|
|
614 ngx_cached_http_time.len);
|
|
|
615 }
|
|
|
616
|
|
|
617 if (op->data == offsetof(ngx_http_headers_out_t, server)) {
|
|
|
618 return ngx_cpymem(buf, NGINX_VER, sizeof(NGINX_VER) - 1);
|
|
|
619 }
|
|
|
620
|
|
|
621 if (op->data == offsetof(ngx_http_headers_out_t, content_length)) {
|
|
|
622 if (r->headers_out.content_length_n == -1) {
|
|
|
623 *buf = '-';
|
|
|
624
|
|
|
625 return buf + 1;
|
|
|
626 }
|
|
|
627
|
|
|
628 return ngx_sprintf(buf, "%O", r->headers_out.content_length_n);
|
|
|
629 }
|
|
|
630
|
|
|
631 if (op->data == offsetof(ngx_http_headers_out_t, last_modified)) {
|
|
|
632 if (r->headers_out.last_modified_time == -1) {
|
|
|
633 *buf = '-';
|
|
|
634
|
|
|
635 return buf + 1;
|
|
|
636 }
|
|
|
637
|
|
|
638 return ngx_http_time(buf, r->headers_out.last_modified_time);
|
|
|
639 }
|
|
|
640
|
|
|
641 *buf = '-';
|
|
|
642
|
|
|
643 return buf + 1;
|
|
|
644 }
|
|
|
645
|
|
|
646
|
|
|
647 static size_t
|
|
|
648 ngx_http_log_unknown_header_out_getlen(ngx_http_request_t *r, uintptr_t data)
|
|
|
649 {
|
|
|
650 ngx_table_elt_t *h;
|
|
|
651
|
|
|
652 h = ngx_http_log_unknown_header(&r->headers_out.headers,
|
|
|
653 (ngx_str_t *) data);
|
|
|
654
|
|
|
655 if (h) {
|
|
|
656 return h->value.len;
|
|
|
657 }
|
|
|
658
|
|
|
659 return 1;
|
|
|
660 }
|
|
|
661
|
|
|
662
|
|
|
663 static u_char *
|
|
|
664 ngx_http_log_unknown_header_out(ngx_http_request_t *r, u_char *buf,
|
|
|
665 ngx_http_log_op_t *op)
|
|
|
666 {
|
|
|
667 ngx_table_elt_t *h;
|
|
|
668
|
|
|
669 h = ngx_http_log_unknown_header(&r->headers_out.headers,
|
|
|
670 (ngx_str_t *) op->data);
|
|
|
671
|
|
|
672 if (h) {
|
|
|
673 return ngx_cpymem(buf, h->value.data, h->value.len);
|
|
|
674 }
|
|
|
675
|
|
|
676 *buf = '-';
|
|
|
677
|
|
|
678 return buf + 1;
|
|
|
679 }
|
|
|
680
|
|
|
681
|
|
|
682 static ngx_table_elt_t *
|
|
|
683 ngx_http_log_unknown_header(ngx_list_t *headers, ngx_str_t *value)
|
|
|
684 {
|
|
|
685 ngx_uint_t i;
|
|
|
686 ngx_list_part_t *part;
|
|
|
687 ngx_table_elt_t *h;
|
|
|
688
|
|
|
689 part = &headers->part;
|
|
|
690 h = part->elts;
|
|
|
691
|
|
|
692 for (i = 0; /* void */; i++) {
|
|
|
693
|
|
|
694 if (i >= part->nelts) {
|
|
|
695 if (part->next == NULL) {
|
|
|
696 break;
|
|
|
697 }
|
|
|
698
|
|
|
699 part = part->next;
|
|
|
700 h = part->elts;
|
|
|
701 i = 0;
|
|
|
702 }
|
|
|
703
|
|
|
704 if (h[i].key.len != value->len) {
|
|
|
705 continue;
|
|
|
706 }
|
|
|
707
|
|
|
708 if (ngx_strncasecmp(h[i].key.data, value->data, value->len) == 0) {
|
|
|
709 return &h[i];
|
|
|
710 }
|
|
|
711 }
|
|
|
712
|
|
|
713 return NULL;
|
|
|
714 }
|
|
|
715
|
|
|
716
|
|
|
717 static u_char *
|
|
|
718 ngx_http_log_connection_header_out(ngx_http_request_t *r, u_char *buf,
|
|
|
719 ngx_http_log_op_t *op)
|
|
|
720 {
|
|
|
721 if (r->keepalive) {
|
|
|
722 return ngx_cpymem(buf, "keep-alive", sizeof("keep-alive") - 1);
|
|
|
723
|
|
|
724 } else {
|
|
|
725 return ngx_cpymem(buf, "close", sizeof("close") - 1);
|
|
|
726 }
|
|
|
727 }
|
|
|
728
|
|
|
729
|
|
|
730 static u_char *
|
|
|
731 ngx_http_log_transfer_encoding_header_out(ngx_http_request_t *r, u_char *buf,
|
|
|
732 ngx_http_log_op_t *op)
|
|
|
733 {
|
|
|
734 if (r->chunked) {
|
|
|
735 return ngx_cpymem(buf, "chunked", sizeof("chunked") - 1);
|
|
|
736 }
|
|
|
737
|
|
|
738 *buf = '-';
|
|
|
739
|
|
|
740 return buf + 1;
|
|
|
741 }
|
|
|
742
|
|
|
743
|
|
|
744 static ngx_int_t
|
|
|
745 ngx_http_log_variable_compile(ngx_conf_t *cf, ngx_http_log_op_t *op,
|
|
|
746 ngx_str_t *value)
|
|
|
747 {
|
|
58
|
748 ngx_int_t index;
|
|
50
|
749
|
|
58
|
750 index = ngx_http_get_variable_index(cf, value);
|
|
|
751 if (index == NGX_ERROR) {
|
|
50
|
752 return NGX_ERROR;
|
|
|
753 }
|
|
|
754
|
|
|
755 op->len = 0;
|
|
|
756 op->getlen = ngx_http_log_variable_getlen;
|
|
|
757 op->run = ngx_http_log_variable;
|
|
58
|
758 op->data = index;
|
|
50
|
759
|
|
|
760 return NGX_OK;
|
|
|
761 }
|
|
|
762
|
|
|
763
|
|
|
764 static size_t
|
|
|
765 ngx_http_log_variable_getlen(ngx_http_request_t *r, uintptr_t data)
|
|
|
766 {
|
|
|
767 ngx_http_variable_value_t *value;
|
|
|
768
|
|
|
769 value = ngx_http_get_indexed_variable(r, data);
|
|
|
770
|
|
|
771 if (value == NULL
|
|
58
|
772 || value == NGX_HTTP_VAR_NOT_FOUND
|
|
50
|
773 || value->text.len == 0)
|
|
|
774 {
|
|
|
775 return 1;
|
|
|
776 }
|
|
|
777
|
|
|
778 return value->text.len;
|
|
|
779 }
|
|
|
780
|
|
|
781
|
|
|
782 static u_char *
|
|
|
783 ngx_http_log_variable(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op)
|
|
|
784 {
|
|
|
785 ngx_http_variable_value_t *value;
|
|
|
786
|
|
|
787 value = ngx_http_get_indexed_variable(r, op->data);
|
|
|
788
|
|
|
789 if (value == NULL
|
|
58
|
790 || value == NGX_HTTP_VAR_NOT_FOUND
|
|
50
|
791 || value->text.len == 0)
|
|
|
792 {
|
|
|
793 *buf = '-';
|
|
|
794 return buf + 1;
|
|
|
795 }
|
|
|
796
|
|
|
797 return ngx_cpymem(buf, value->text.data, value->text.len);
|
|
|
798 }
|
|
|
799
|
|
|
800
|
|
|
801 static ngx_int_t
|
|
|
802 ngx_http_log_set_formats(ngx_conf_t *cf)
|
|
|
803 {
|
|
|
804 ngx_http_log_op_name_t *op;
|
|
|
805
|
|
|
806 for (op = ngx_http_log_fmt_ops; op->name.len; op++) { /* void */ }
|
|
|
807 op->run = NULL;
|
|
|
808
|
|
|
809 return NGX_OK;
|
|
|
810 }
|
|
|
811
|
|
|
812
|
|
|
813 static void *
|
|
|
814 ngx_http_log_create_main_conf(ngx_conf_t *cf)
|
|
|
815 {
|
|
|
816 ngx_http_log_main_conf_t *conf;
|
|
|
817
|
|
|
818 char *rc;
|
|
|
819 ngx_str_t *value;
|
|
|
820
|
|
|
821 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_log_main_conf_t));
|
|
|
822 if (conf == NULL) {
|
|
|
823 return NGX_CONF_ERROR;
|
|
|
824 }
|
|
|
825
|
|
|
826 if (ngx_array_init(&conf->formats, cf->pool, 4, sizeof(ngx_http_log_fmt_t))
|
|
|
827 == NGX_ERROR)
|
|
|
828 {
|
|
|
829 return NGX_CONF_ERROR;
|
|
|
830 }
|
|
|
831
|
|
|
832 cf->args->nelts = 0;
|
|
|
833
|
|
|
834 value = ngx_array_push(cf->args);
|
|
|
835 if (value == NULL) {
|
|
|
836 return NGX_CONF_ERROR;
|
|
|
837 }
|
|
|
838
|
|
|
839 value = ngx_array_push(cf->args);
|
|
|
840 if (value == NULL) {
|
|
|
841 return NGX_CONF_ERROR;
|
|
|
842 }
|
|
|
843
|
|
|
844 value->len = sizeof("combined") - 1;
|
|
|
845 value->data = (u_char *) "combined";
|
|
|
846
|
|
|
847 value = ngx_array_push(cf->args);
|
|
|
848 if (value == NULL) {
|
|
|
849 return NGX_CONF_ERROR;
|
|
|
850 }
|
|
|
851
|
|
|
852 *value = ngx_http_combined_fmt;
|
|
|
853
|
|
|
854 rc = ngx_http_log_set_format(cf, NULL, conf);
|
|
|
855 if (rc != NGX_CONF_OK) {
|
|
|
856 return NULL;
|
|
|
857 }
|
|
|
858
|
|
|
859 return conf;
|
|
|
860 }
|
|
|
861
|
|
|
862
|
|
|
863 static void *
|
|
|
864 ngx_http_log_create_loc_conf(ngx_conf_t *cf)
|
|
|
865 {
|
|
|
866 ngx_http_log_loc_conf_t *conf;
|
|
|
867
|
|
|
868 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_log_loc_conf_t));
|
|
|
869 if (conf == NULL) {
|
|
|
870 return NGX_CONF_ERROR;
|
|
|
871 }
|
|
|
872
|
|
|
873 return conf;
|
|
|
874 }
|
|
|
875
|
|
|
876
|
|
|
877 static char *
|
|
|
878 ngx_http_log_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child)
|
|
|
879 {
|
|
|
880 ngx_http_log_loc_conf_t *prev = parent;
|
|
|
881 ngx_http_log_loc_conf_t *conf = child;
|
|
|
882
|
|
|
883 ngx_http_log_t *log;
|
|
|
884 ngx_http_log_fmt_t *fmt;
|
|
|
885 ngx_http_log_main_conf_t *lmcf;
|
|
|
886
|
|
|
887 if (conf->logs == NULL) {
|
|
|
888
|
|
|
889 if (conf->off) {
|
|
|
890 return NGX_CONF_OK;
|
|
|
891 }
|
|
|
892
|
|
|
893 if (prev->logs) {
|
|
|
894 conf->logs = prev->logs;
|
|
|
895
|
|
|
896 } else {
|
|
|
897
|
|
|
898 if (prev->off) {
|
|
|
899 conf->off = prev->off;
|
|
|
900 return NGX_CONF_OK;
|
|
|
901 }
|
|
|
902
|
|
|
903 conf->logs = ngx_array_create(cf->pool, 2, sizeof(ngx_http_log_t));
|
|
|
904 if (conf->logs == NULL) {
|
|
|
905 return NGX_CONF_ERROR;
|
|
|
906 }
|
|
|
907
|
|
|
908 log = ngx_array_push(conf->logs);
|
|
|
909 if (log == NULL) {
|
|
|
910 return NGX_CONF_ERROR;
|
|
|
911 }
|
|
|
912
|
|
|
913 log->file = ngx_conf_open_file(cf->cycle, &http_access_log);
|
|
|
914 if (log->file == NULL) {
|
|
|
915 return NGX_CONF_ERROR;
|
|
|
916 }
|
|
|
917
|
|
|
918 lmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_log_module);
|
|
|
919 fmt = lmcf->formats.elts;
|
|
|
920
|
|
|
921 /* the default "combined" format */
|
|
|
922 log->ops = fmt[0].ops;
|
|
|
923 }
|
|
|
924 }
|
|
|
925
|
|
|
926 return NGX_CONF_OK;
|
|
|
927 }
|
|
|
928
|
|
|
929
|
|
|
930 static char *
|
|
|
931 ngx_http_log_set_log(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
932 {
|
|
|
933 ngx_http_log_loc_conf_t *llcf = conf;
|
|
|
934
|
|
|
935 ngx_uint_t i;
|
|
|
936 ngx_str_t *value, name;
|
|
|
937 ngx_http_log_t *log;
|
|
|
938 ngx_http_log_fmt_t *fmt;
|
|
|
939 ngx_http_log_main_conf_t *lmcf;
|
|
|
940
|
|
|
941 value = cf->args->elts;
|
|
|
942
|
|
|
943 if (ngx_strcmp(value[1].data, "off") == 0) {
|
|
|
944 llcf->off = 1;
|
|
|
945 return NGX_CONF_OK;
|
|
|
946 }
|
|
|
947
|
|
|
948 if (llcf->logs == NULL) {
|
|
|
949 llcf->logs = ngx_array_create(cf->pool, 2, sizeof(ngx_http_log_t));
|
|
|
950 if (llcf->logs == NULL) {
|
|
|
951 return NGX_CONF_ERROR;
|
|
|
952 }
|
|
|
953 }
|
|
|
954
|
|
|
955 lmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_log_module);
|
|
|
956
|
|
|
957 log = ngx_array_push(llcf->logs);
|
|
|
958 if (log == NULL) {
|
|
|
959 return NGX_CONF_ERROR;
|
|
|
960 }
|
|
|
961
|
|
|
962 log->file = ngx_conf_open_file(cf->cycle, &value[1]);
|
|
|
963 if (log->file == NULL) {
|
|
|
964 return NGX_CONF_ERROR;
|
|
|
965 }
|
|
|
966
|
|
|
967 if (cf->args->nelts == 3) {
|
|
|
968 name = value[2];
|
|
|
969 } else {
|
|
|
970 name.len = sizeof("combined") - 1;
|
|
|
971 name.data = (u_char *) "combined";
|
|
|
972 }
|
|
|
973
|
|
|
974 fmt = lmcf->formats.elts;
|
|
|
975 for (i = 0; i < lmcf->formats.nelts; i++) {
|
|
|
976 if (fmt[i].name.len == name.len
|
|
|
977 && ngx_strcasecmp(fmt[i].name.data, name.data) == 0)
|
|
|
978 {
|
|
|
979 log->ops = fmt[i].ops;
|
|
|
980 return NGX_CONF_OK;
|
|
|
981 }
|
|
|
982 }
|
|
|
983
|
|
|
984 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
985 "unknown log format \"%V\"", &name);
|
|
|
986
|
|
|
987 return NGX_CONF_ERROR;
|
|
|
988 }
|
|
|
989
|
|
|
990
|
|
|
991 static char *
|
|
|
992 ngx_http_log_set_format(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
993 {
|
|
|
994 ngx_http_log_main_conf_t *lmcf = conf;
|
|
|
995
|
|
|
996 ngx_uint_t s, f, invalid;
|
|
|
997 u_char *data, *p, *fname;
|
|
|
998 size_t i, len, fname_len;
|
|
|
999 ngx_str_t *value, arg, *a;
|
|
|
1000 ngx_http_log_op_t *op;
|
|
|
1001 ngx_http_log_fmt_t *fmt;
|
|
|
1002 ngx_http_log_op_name_t *name;
|
|
|
1003
|
|
|
1004 value = cf->args->elts;
|
|
|
1005
|
|
|
1006 fmt = lmcf->formats.elts;
|
|
|
1007 for (f = 0; f < lmcf->formats.nelts; f++) {
|
|
|
1008 if (fmt[f].name.len == value[1].len
|
|
|
1009 && ngx_strcmp(fmt->name.data, value[1].data) == 0)
|
|
|
1010 {
|
|
|
1011 return "duplicate \"log_format\" name";
|
|
|
1012 }
|
|
|
1013 }
|
|
|
1014
|
|
|
1015 fmt = ngx_array_push(&lmcf->formats);
|
|
|
1016 if (fmt == NULL) {
|
|
|
1017 return NGX_CONF_ERROR;
|
|
|
1018 }
|
|
|
1019
|
|
|
1020 fmt->name = value[1];
|
|
|
1021
|
|
|
1022 fmt->ops = ngx_array_create(cf->pool, 20, sizeof(ngx_http_log_op_t));
|
|
|
1023 if (fmt->ops == NULL) {
|
|
|
1024 return NGX_CONF_ERROR;
|
|
|
1025 }
|
|
|
1026
|
|
|
1027 invalid = 0;
|
|
|
1028 data = NULL;
|
|
|
1029 arg.data = NULL;
|
|
|
1030
|
|
|
1031 for (s = 2; s < cf->args->nelts && !invalid; s++) {
|
|
|
1032
|
|
|
1033 i = 0;
|
|
|
1034
|
|
|
1035 while (i < value[s].len) {
|
|
|
1036
|
|
|
1037 op = ngx_array_push(fmt->ops);
|
|
|
1038 if (op == NULL) {
|
|
|
1039 return NGX_CONF_ERROR;
|
|
|
1040 }
|
|
|
1041
|
|
|
1042 data = &value[s].data[i];
|
|
|
1043
|
|
|
1044 if (value[s].data[i] == '%') {
|
|
|
1045 i++;
|
|
|
1046
|
|
|
1047 if (i == value[s].len) {
|
|
|
1048 invalid = 1;
|
|
|
1049 break;
|
|
|
1050 }
|
|
|
1051
|
|
|
1052 if (value[s].data[i] == '{') {
|
|
|
1053 i++;
|
|
|
1054
|
|
|
1055 arg.data = &value[s].data[i];
|
|
|
1056
|
|
|
1057 while (i < value[s].len && value[s].data[i] != '}') {
|
|
|
1058 i++;
|
|
|
1059 }
|
|
|
1060
|
|
|
1061 arg.len = &value[s].data[i] - arg.data;
|
|
|
1062
|
|
|
1063 if (i == value[s].len || arg.len == 0) {
|
|
|
1064 invalid = 1;
|
|
|
1065 break;
|
|
|
1066 }
|
|
|
1067
|
|
|
1068 i++;
|
|
|
1069
|
|
|
1070 } else {
|
|
|
1071 arg.len = 0;
|
|
|
1072 }
|
|
|
1073
|
|
|
1074 fname = &value[s].data[i];
|
|
|
1075
|
|
|
1076 while (i < value[s].len
|
|
|
1077 && ((value[s].data[i] >= 'a' && value[s].data[i] <= 'z')
|
|
|
1078 || value[s].data[i] == '_'))
|
|
|
1079 {
|
|
|
1080 i++;
|
|
|
1081 }
|
|
|
1082
|
|
|
1083 fname_len = &value[s].data[i] - fname;
|
|
|
1084
|
|
|
1085 if (fname_len == 0) {
|
|
|
1086 invalid = 1;
|
|
|
1087 break;
|
|
|
1088 }
|
|
|
1089
|
|
|
1090 for (name = ngx_http_log_fmt_ops; name->run; name++) {
|
|
|
1091 if (name->name.len == 0) {
|
|
|
1092 name = (ngx_http_log_op_name_t *) name->run;
|
|
|
1093 }
|
|
|
1094
|
|
|
1095 if (name->name.len == fname_len
|
|
|
1096 && ngx_strncmp(name->name.data, fname, fname_len) == 0)
|
|
|
1097 {
|
|
|
1098 if (name->compile == NULL) {
|
|
|
1099 if (arg.len) {
|
|
|
1100 fname[fname_len] = '\0';
|
|
|
1101 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1102 "\"%s\" must not have argument",
|
|
|
1103 data);
|
|
|
1104 return NGX_CONF_ERROR;
|
|
|
1105 }
|
|
|
1106
|
|
|
1107 op->len = name->len;
|
|
|
1108 op->getlen = name->getlen;
|
|
|
1109 op->run = name->run;
|
|
|
1110 op->data = 0;
|
|
|
1111
|
|
|
1112 break;
|
|
|
1113 }
|
|
|
1114
|
|
|
1115 if (arg.len == 0) {
|
|
|
1116 fname[fname_len] = '\0';
|
|
|
1117 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1118 "\"%s\" requires argument",
|
|
|
1119 data);
|
|
|
1120 return NGX_CONF_ERROR;
|
|
|
1121 }
|
|
|
1122
|
|
|
1123 a = ngx_palloc(cf->pool, sizeof(ngx_str_t));
|
|
|
1124 if (a == NULL) {
|
|
|
1125 return NGX_CONF_ERROR;
|
|
|
1126 }
|
|
|
1127
|
|
|
1128 *a = arg;
|
|
|
1129 if (name->compile(cf, op, a) == NGX_ERROR) {
|
|
|
1130 return NGX_CONF_ERROR;
|
|
|
1131 }
|
|
|
1132
|
|
|
1133 break;
|
|
|
1134 }
|
|
|
1135 }
|
|
|
1136
|
|
|
1137 if (name->name.len == 0) {
|
|
|
1138 invalid = 1;
|
|
|
1139 break;
|
|
|
1140 }
|
|
|
1141
|
|
|
1142 } else {
|
|
|
1143 i++;
|
|
|
1144
|
|
|
1145 while (i < value[s].len && value[s].data[i] != '%') {
|
|
|
1146 i++;
|
|
|
1147 }
|
|
|
1148
|
|
|
1149 len = &value[s].data[i] - data;
|
|
|
1150
|
|
|
1151 if (len) {
|
|
|
1152
|
|
|
1153 op->len = len;
|
|
|
1154 op->getlen = NULL;
|
|
|
1155
|
|
|
1156 if (len <= sizeof(uintptr_t)) {
|
|
|
1157 op->run = ngx_http_log_copy_short;
|
|
|
1158 op->data = 0;
|
|
|
1159
|
|
|
1160 while (len--) {
|
|
|
1161 op->data <<= 8;
|
|
|
1162 op->data |= data[len];
|
|
|
1163 }
|
|
|
1164
|
|
|
1165 } else {
|
|
|
1166 op->run = ngx_http_log_copy_long;
|
|
|
1167
|
|
|
1168 p = ngx_palloc(cf->pool, len);
|
|
|
1169 if (p == NULL) {
|
|
|
1170 return NGX_CONF_ERROR;
|
|
|
1171 }
|
|
|
1172
|
|
|
1173 ngx_memcpy(p, data, len);
|
|
|
1174 op->data = (uintptr_t) p;
|
|
|
1175 }
|
|
|
1176 }
|
|
|
1177 }
|
|
|
1178 }
|
|
|
1179 }
|
|
|
1180
|
|
|
1181 if (invalid) {
|
|
|
1182 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1183 "invalid parameter \"%s\"", data);
|
|
|
1184 return NGX_CONF_ERROR;
|
|
|
1185 }
|
|
|
1186
|
|
|
1187 return NGX_CONF_OK;
|
|
|
1188 }
|
