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118
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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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260
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13 typedef struct ngx_http_log_op_s ngx_http_log_op_t;
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14
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15 typedef u_char *(*ngx_http_log_op_run_pt) (ngx_http_request_t *r, u_char *buf,
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16 ngx_http_log_op_t *op);
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17
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18 typedef size_t (*ngx_http_log_op_getlen_pt) (ngx_http_request_t *r,
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19 uintptr_t data);
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20
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21
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22 struct ngx_http_log_op_s {
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23 size_t len;
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24 ngx_http_log_op_getlen_pt getlen;
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25 ngx_http_log_op_run_pt run;
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26 uintptr_t data;
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27 };
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28
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122
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29
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30 typedef struct {
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31 ngx_str_t name;
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32 ngx_array_t *ops; /* array of ngx_http_log_op_t */
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33 } ngx_http_log_fmt_t;
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34
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206
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35
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122
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36 typedef struct {
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37 ngx_array_t formats; /* array of ngx_http_log_fmt_t */
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38 ngx_uint_t combined_used; /* unsigned combined_used:1 */
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39 } ngx_http_log_main_conf_t;
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40
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206
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41
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122
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42 typedef struct {
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43 ngx_open_file_t *file;
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182
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44 time_t disk_full_time;
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278
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45 time_t error_log_time;
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122
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46 ngx_array_t *ops; /* array of ngx_http_log_op_t */
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47 } ngx_http_log_t;
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48
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206
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49
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122
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50 typedef struct {
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51 ngx_array_t *logs; /* array of ngx_http_log_t */
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52 ngx_uint_t off; /* unsigned off:1 */
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53 } ngx_http_log_loc_conf_t;
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54
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55
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56 typedef struct {
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57 ngx_str_t name;
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58 size_t len;
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59 ngx_http_log_op_run_pt run;
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60 } ngx_http_log_var_t;
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61
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62
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278
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63 static void ngx_http_log_write(ngx_http_request_t *r, ngx_http_log_t *log,
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64 u_char *buf, size_t len);
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65
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118
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66 static u_char *ngx_http_log_connection(ngx_http_request_t *r, u_char *buf,
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67 ngx_http_log_op_t *op);
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68 static u_char *ngx_http_log_pipe(ngx_http_request_t *r, u_char *buf,
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69 ngx_http_log_op_t *op);
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70 static u_char *ngx_http_log_time(ngx_http_request_t *r, u_char *buf,
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71 ngx_http_log_op_t *op);
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72 static u_char *ngx_http_log_msec(ngx_http_request_t *r, u_char *buf,
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73 ngx_http_log_op_t *op);
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74 static u_char *ngx_http_log_request_time(ngx_http_request_t *r, u_char *buf,
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75 ngx_http_log_op_t *op);
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76 static u_char *ngx_http_log_status(ngx_http_request_t *r, u_char *buf,
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77 ngx_http_log_op_t *op);
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122
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78 static u_char *ngx_http_log_bytes_sent(ngx_http_request_t *r, u_char *buf,
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118
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79 ngx_http_log_op_t *op);
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126
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80 static u_char *ngx_http_log_body_bytes_sent(ngx_http_request_t *r,
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122
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81 u_char *buf, ngx_http_log_op_t *op);
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118
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82 static u_char *ngx_http_log_request_length(ngx_http_request_t *r, u_char *buf,
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83 ngx_http_log_op_t *op);
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84
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85 static ngx_int_t ngx_http_log_variable_compile(ngx_conf_t *cf,
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86 ngx_http_log_op_t *op, ngx_str_t *value);
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87 static size_t ngx_http_log_variable_getlen(ngx_http_request_t *r,
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88 uintptr_t data);
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89 static u_char *ngx_http_log_variable(ngx_http_request_t *r, u_char *buf,
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90 ngx_http_log_op_t *op);
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91
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92
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93 static void *ngx_http_log_create_main_conf(ngx_conf_t *cf);
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94 static void *ngx_http_log_create_loc_conf(ngx_conf_t *cf);
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95 static char *ngx_http_log_merge_loc_conf(ngx_conf_t *cf, void *parent,
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96 void *child);
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97 static char *ngx_http_log_set_log(ngx_conf_t *cf, ngx_command_t *cmd,
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98 void *conf);
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99 static char *ngx_http_log_set_format(ngx_conf_t *cf, ngx_command_t *cmd,
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100 void *conf);
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122
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101 static char *ngx_http_log_compile_format(ngx_conf_t *cf,
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102 ngx_array_t *ops, ngx_array_t *args, ngx_uint_t s);
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103 static ngx_int_t ngx_http_log_init(ngx_conf_t *cf);
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118
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104
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105
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106 static ngx_command_t ngx_http_log_commands[] = {
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107
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108 { ngx_string("log_format"),
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109 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_2MORE,
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110 ngx_http_log_set_format,
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111 NGX_HTTP_MAIN_CONF_OFFSET,
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112 0,
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113 NULL },
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114
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115 { ngx_string("access_log"),
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194
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116 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF
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340
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117 |NGX_HTTP_LMT_CONF|NGX_CONF_TAKE123,
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118
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118 ngx_http_log_set_log,
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119 NGX_HTTP_LOC_CONF_OFFSET,
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120 0,
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121 NULL },
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122
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123 ngx_null_command
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124 };
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125
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126
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216
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127 static ngx_http_module_t ngx_http_log_module_ctx = {
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260
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128 NULL, /* preconfiguration */
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122
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129 ngx_http_log_init, /* postconfiguration */
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118
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130
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131 ngx_http_log_create_main_conf, /* create main configuration */
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132 NULL, /* init main configuration */
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133
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134 NULL, /* create server configuration */
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135 NULL, /* merge server configuration */
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136
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137 ngx_http_log_create_loc_conf, /* create location configration */
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138 ngx_http_log_merge_loc_conf /* merge location configration */
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139 };
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140
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141
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142 ngx_module_t ngx_http_log_module = {
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143 NGX_MODULE_V1,
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144 &ngx_http_log_module_ctx, /* module context */
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145 ngx_http_log_commands, /* module directives */
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146 NGX_HTTP_MODULE, /* module type */
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147 NULL, /* init master */
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122
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148 NULL, /* init module */
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118
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149 NULL, /* init process */
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150 NULL, /* init thread */
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151 NULL, /* exit thread */
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152 NULL, /* exit process */
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153 NULL, /* exit master */
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154 NGX_MODULE_V1_PADDING
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155 };
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156
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157
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278
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158 static ngx_str_t ngx_http_access_log = ngx_string(NGX_HTTP_LOG_PATH);
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122
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159
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160
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161 static ngx_str_t ngx_http_combined_fmt =
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130
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162 ngx_string("$remote_addr - $remote_user [$time_local] "
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126
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163 "\"$request\" $status $body_bytes_sent "
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122
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164 "\"$http_referer\" \"$http_user_agent\"");
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118
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165
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166
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122
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167 static ngx_http_log_var_t ngx_http_log_vars[] = {
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168 { ngx_string("connection"), NGX_ATOMIC_T_LEN, ngx_http_log_connection },
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169 { ngx_string("pipe"), 1, ngx_http_log_pipe },
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130
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170 { ngx_string("time_local"), sizeof("28/Sep/1970:12:00:00 +0600") - 1,
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122
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171 ngx_http_log_time },
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172 { ngx_string("msec"), NGX_TIME_T_LEN + 4, ngx_http_log_msec },
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298
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173 { ngx_string("request_time"), NGX_TIME_T_LEN + 4,
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174 ngx_http_log_request_time },
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122
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175 { ngx_string("status"), 3, ngx_http_log_status },
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176 { ngx_string("bytes_sent"), NGX_OFF_T_LEN, ngx_http_log_bytes_sent },
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126
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177 { ngx_string("body_bytes_sent"), NGX_OFF_T_LEN,
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178 ngx_http_log_body_bytes_sent },
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122
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179 { ngx_string("apache_bytes_sent"), NGX_OFF_T_LEN,
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126
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180 ngx_http_log_body_bytes_sent },
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122
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181 { ngx_string("request_length"), NGX_SIZE_T_LEN,
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182 ngx_http_log_request_length },
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183
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184 { ngx_null_string, 0, NULL }
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185 };
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118
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186
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187
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188 ngx_int_t
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189 ngx_http_log_handler(ngx_http_request_t *r)
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190 {
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191 u_char *line, *p;
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192 size_t len;
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278
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193 ngx_uint_t i, l;
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118
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194 ngx_http_log_t *log;
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120
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195 ngx_open_file_t *file;
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118
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196 ngx_http_log_op_t *op;
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197 ngx_http_log_loc_conf_t *lcf;
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198
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199 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
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200 "http log handler");
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201
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202 lcf = ngx_http_get_module_loc_conf(r, ngx_http_log_module);
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203
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204 if (lcf->off) {
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205 return NGX_OK;
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206 }
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207
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208 log = lcf->logs->elts;
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209 for (l = 0; l < lcf->logs->nelts; l++) {
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210
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182
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211 if (ngx_time() == log[l].disk_full_time) {
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212
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213 /*
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278
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214 * on FreeBSD writing to a full filesystem with enabled softupdates
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182
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215 * may block process for much longer time than writing to non-full
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278
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216 * filesystem, so we skip writing to a log for one second
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182
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217 */
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218
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219 continue;
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220 }
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221
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118
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222 len = 0;
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223 op = log[l].ops->elts;
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224 for (i = 0; i < log[l].ops->nelts; i++) {
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225 if (op[i].len == 0) {
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226 len += op[i].getlen(r, op[i].data);
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227
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228 } else {
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229 len += op[i].len;
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230 }
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231 }
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232
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120
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233 len += NGX_LINEFEED_SIZE;
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234
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235 file = log[l].file;
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236
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237 if (file->buffer) {
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238
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239 if (len > (size_t) (file->last - file->pos)) {
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240
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278
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241 ngx_http_log_write(r, &log[l], file->buffer,
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242 file->pos - file->buffer);
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120
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243
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244 file->pos = file->buffer;
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245 }
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246
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247 if (len <= (size_t) (file->last - file->pos)) {
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248
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249 p = file->pos;
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250
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251 for (i = 0; i < log[l].ops->nelts; i++) {
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252 p = op[i].run(r, p, &op[i]);
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253 }
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254
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255 ngx_linefeed(p);
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256
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257 file->pos = p;
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258
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259 continue;
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260 }
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261 }
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118
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262
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263 line = ngx_palloc(r->pool, len);
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264 if (line == NULL) {
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265 return NGX_ERROR;
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266 }
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267
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268 p = line;
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269
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270 for (i = 0; i < log[l].ops->nelts; i++) {
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271 p = op[i].run(r, p, &op[i]);
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272 }
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273
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120
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274 ngx_linefeed(p);
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275
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278
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276 ngx_http_log_write(r, &log[l], line, p - line);
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118
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277 }
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278
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279 return NGX_OK;
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280 }
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281
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282
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278
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283 static void
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284 ngx_http_log_write(ngx_http_request_t *r, ngx_http_log_t *log, u_char *buf,
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285 size_t len)
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286 {
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287 time_t now;
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288 ssize_t n;
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289 ngx_err_t err;
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290
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291 n = ngx_write_fd(log->file->fd, buf, len);
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292
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293 if (n == (ssize_t) len) {
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294 return;
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295 }
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296
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297 now = ngx_time();
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298
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299 if (n == -1) {
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300 err = ngx_errno;
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301
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302 if (err == NGX_ENOSPC) {
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303 log->disk_full_time = now;
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304 }
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305
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296
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306 if (now - log->error_log_time > 59) {
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278
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307 ngx_log_error(NGX_LOG_ALERT, r->connection->log, err,
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308 ngx_write_fd_n " to \"%V\" failed",
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309 &log->file->name);
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310
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311 log->error_log_time = now;
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312 }
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313
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314 return;
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315 }
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316
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296
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317 if (now - log->error_log_time > 59) {
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278
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318 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
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319 ngx_write_fd_n " to \"%V\" was incomplete: %z of %uz",
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320 &log->file->name, n, len);
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321
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322 log->error_log_time = now;
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323 }
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324 }
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325
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326
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118
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327 static u_char *
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328 ngx_http_log_copy_short(ngx_http_request_t *r, u_char *buf,
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329 ngx_http_log_op_t *op)
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330 {
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331 size_t len;
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332 uintptr_t data;
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333
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334 len = op->len;
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335 data = op->data;
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336
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337 while (len--) {
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338 *buf++ = (u_char) (data & 0xff);
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339 data >>= 8;
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340 }
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341
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342 return buf;
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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_copy_long(ngx_http_request_t *r, u_char *buf,
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348 ngx_http_log_op_t *op)
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349 {
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350 return ngx_cpymem(buf, (u_char *) op->data, op->len);
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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_connection(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 return ngx_sprintf(buf, "%ui", r->connection->number);
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359 }
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360
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361
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362 static u_char *
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363 ngx_http_log_pipe(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op)
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364 {
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365 if (r->pipeline) {
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366 *buf = 'p';
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367 } else {
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368 *buf = '.';
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369 }
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370
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371 return buf + 1;
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372 }
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373
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374
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375 static u_char *
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376 ngx_http_log_time(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op)
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377 {
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378 return ngx_cpymem(buf, ngx_cached_http_log_time.data,
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379 ngx_cached_http_log_time.len);
|
|
|
380 }
|
|
|
381
|
|
|
382
|
|
|
383 static u_char *
|
|
|
384 ngx_http_log_msec(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op)
|
|
|
385 {
|
|
|
386 ngx_time_t *tp;
|
|
|
387
|
|
|
388 tp = ngx_timeofday();
|
|
|
389
|
|
|
390 return ngx_sprintf(buf, "%T.%03M", tp->sec, tp->msec);
|
|
|
391 }
|
|
|
392
|
|
|
393
|
|
|
394 static u_char *
|
|
|
395 ngx_http_log_request_time(ngx_http_request_t *r, u_char *buf,
|
|
|
396 ngx_http_log_op_t *op)
|
|
|
397 {
|
|
298
|
398 ngx_time_t *tp;
|
|
|
399 ngx_msec_int_t ms;
|
|
|
400
|
|
|
401 tp = ngx_timeofday();
|
|
118
|
402
|
|
298
|
403 ms = (tp->sec - r->start_sec) * 1000 + (tp->msec - r->start_msec);
|
|
|
404 ms = (ms >= 0) ? ms : 0;
|
|
118
|
405
|
|
298
|
406 return ngx_sprintf(buf, "%T.%03M", ms / 1000, ms % 1000);
|
|
118
|
407 }
|
|
|
408
|
|
|
409
|
|
|
410 static u_char *
|
|
|
411 ngx_http_log_status(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op)
|
|
|
412 {
|
|
|
413 return ngx_sprintf(buf, "%ui",
|
|
|
414 r->err_status ? r->err_status : r->headers_out.status);
|
|
|
415 }
|
|
|
416
|
|
|
417
|
|
|
418 static u_char *
|
|
122
|
419 ngx_http_log_bytes_sent(ngx_http_request_t *r, u_char *buf,
|
|
|
420 ngx_http_log_op_t *op)
|
|
118
|
421 {
|
|
|
422 return ngx_sprintf(buf, "%O", r->connection->sent);
|
|
|
423 }
|
|
|
424
|
|
|
425
|
|
316
|
426 /*
|
|
|
427 * although there is a real $body_bytes_sent variable,
|
|
|
428 * this log operation code function is more optimized for logging
|
|
|
429 */
|
|
|
430
|
|
118
|
431 static u_char *
|
|
126
|
432 ngx_http_log_body_bytes_sent(ngx_http_request_t *r, u_char *buf,
|
|
118
|
433 ngx_http_log_op_t *op)
|
|
|
434 {
|
|
|
435 off_t length;
|
|
|
436
|
|
|
437 length = r->connection->sent - r->header_size;
|
|
|
438
|
|
|
439 if (length > 0) {
|
|
|
440 return ngx_sprintf(buf, "%O", length);
|
|
|
441 }
|
|
|
442
|
|
|
443 *buf = '0';
|
|
|
444
|
|
|
445 return buf + 1;
|
|
|
446 }
|
|
|
447
|
|
|
448
|
|
|
449 static u_char *
|
|
|
450 ngx_http_log_request_length(ngx_http_request_t *r, u_char *buf,
|
|
|
451 ngx_http_log_op_t *op)
|
|
|
452 {
|
|
212
|
453 return ngx_sprintf(buf, "%O", r->request_length);
|
|
118
|
454 }
|
|
|
455
|
|
|
456
|
|
|
457 static ngx_int_t
|
|
|
458 ngx_http_log_variable_compile(ngx_conf_t *cf, ngx_http_log_op_t *op,
|
|
|
459 ngx_str_t *value)
|
|
|
460 {
|
|
|
461 ngx_int_t index;
|
|
|
462
|
|
|
463 index = ngx_http_get_variable_index(cf, value);
|
|
|
464 if (index == NGX_ERROR) {
|
|
|
465 return NGX_ERROR;
|
|
|
466 }
|
|
|
467
|
|
|
468 op->len = 0;
|
|
|
469 op->getlen = ngx_http_log_variable_getlen;
|
|
|
470 op->run = ngx_http_log_variable;
|
|
|
471 op->data = index;
|
|
|
472
|
|
|
473 return NGX_OK;
|
|
|
474 }
|
|
|
475
|
|
|
476
|
|
|
477 static size_t
|
|
|
478 ngx_http_log_variable_getlen(ngx_http_request_t *r, uintptr_t data)
|
|
|
479 {
|
|
|
480 ngx_http_variable_value_t *value;
|
|
|
481
|
|
|
482 value = ngx_http_get_indexed_variable(r, data);
|
|
|
483
|
|
122
|
484 if (value == NULL || value->not_found) {
|
|
118
|
485 return 1;
|
|
|
486 }
|
|
|
487
|
|
122
|
488 return value->len;
|
|
118
|
489 }
|
|
|
490
|
|
|
491
|
|
|
492 static u_char *
|
|
|
493 ngx_http_log_variable(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op)
|
|
|
494 {
|
|
|
495 ngx_http_variable_value_t *value;
|
|
|
496
|
|
|
497 value = ngx_http_get_indexed_variable(r, op->data);
|
|
|
498
|
|
122
|
499 if (value == NULL || value->not_found) {
|
|
118
|
500 *buf = '-';
|
|
|
501 return buf + 1;
|
|
|
502 }
|
|
|
503
|
|
122
|
504 return ngx_cpymem(buf, value->data, value->len);
|
|
118
|
505 }
|
|
|
506
|
|
|
507
|
|
|
508 static void *
|
|
|
509 ngx_http_log_create_main_conf(ngx_conf_t *cf)
|
|
|
510 {
|
|
|
511 ngx_http_log_main_conf_t *conf;
|
|
|
512
|
|
122
|
513 ngx_http_log_fmt_t *fmt;
|
|
118
|
514
|
|
|
515 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_log_main_conf_t));
|
|
|
516 if (conf == NULL) {
|
|
|
517 return NGX_CONF_ERROR;
|
|
|
518 }
|
|
|
519
|
|
|
520 if (ngx_array_init(&conf->formats, cf->pool, 4, sizeof(ngx_http_log_fmt_t))
|
|
122
|
521 != NGX_OK)
|
|
118
|
522 {
|
|
|
523 return NGX_CONF_ERROR;
|
|
|
524 }
|
|
|
525
|
|
122
|
526 fmt = ngx_array_push(&conf->formats);
|
|
|
527 if (fmt == NULL) {
|
|
118
|
528 return NGX_CONF_ERROR;
|
|
|
529 }
|
|
|
530
|
|
122
|
531 fmt->name.len = sizeof("combined") - 1;
|
|
|
532 fmt->name.data = (u_char *) "combined";
|
|
118
|
533
|
|
122
|
534 fmt->ops = ngx_array_create(cf->pool, 16, sizeof(ngx_http_log_op_t));
|
|
|
535 if (fmt->ops == NULL) {
|
|
118
|
536 return NGX_CONF_ERROR;
|
|
|
537 }
|
|
|
538
|
|
|
539 return conf;
|
|
|
540 }
|
|
|
541
|
|
|
542
|
|
|
543 static void *
|
|
|
544 ngx_http_log_create_loc_conf(ngx_conf_t *cf)
|
|
|
545 {
|
|
|
546 ngx_http_log_loc_conf_t *conf;
|
|
|
547
|
|
|
548 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_log_loc_conf_t));
|
|
|
549 if (conf == NULL) {
|
|
|
550 return NGX_CONF_ERROR;
|
|
|
551 }
|
|
|
552
|
|
|
553 return conf;
|
|
|
554 }
|
|
|
555
|
|
|
556
|
|
|
557 static char *
|
|
|
558 ngx_http_log_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child)
|
|
|
559 {
|
|
|
560 ngx_http_log_loc_conf_t *prev = parent;
|
|
|
561 ngx_http_log_loc_conf_t *conf = child;
|
|
|
562
|
|
|
563 ngx_http_log_t *log;
|
|
|
564 ngx_http_log_fmt_t *fmt;
|
|
|
565 ngx_http_log_main_conf_t *lmcf;
|
|
|
566
|
|
278
|
567 if (conf->logs || conf->off) {
|
|
|
568 return NGX_CONF_OK;
|
|
|
569 }
|
|
118
|
570
|
|
278
|
571 *conf = *prev;
|
|
118
|
572
|
|
278
|
573 if (conf->logs || conf->off) {
|
|
|
574 return NGX_CONF_OK;
|
|
|
575 }
|
|
118
|
576
|
|
278
|
577 conf->logs = ngx_array_create(cf->pool, 2, sizeof(ngx_http_log_t));
|
|
|
578 if (conf->logs == NULL) {
|
|
|
579 return NGX_CONF_ERROR;
|
|
|
580 }
|
|
118
|
581
|
|
278
|
582 log = ngx_array_push(conf->logs);
|
|
|
583 if (log == NULL) {
|
|
|
584 return NGX_CONF_ERROR;
|
|
|
585 }
|
|
118
|
586
|
|
278
|
587 log->file = ngx_conf_open_file(cf->cycle, &ngx_http_access_log);
|
|
|
588 if (log->file == NULL) {
|
|
|
589 return NGX_CONF_ERROR;
|
|
|
590 }
|
|
118
|
591
|
|
278
|
592 log->disk_full_time = 0;
|
|
|
593 log->error_log_time = 0;
|
|
118
|
594
|
|
278
|
595 lmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_log_module);
|
|
|
596 fmt = lmcf->formats.elts;
|
|
|
597
|
|
|
598 /* the default "combined" format */
|
|
|
599 log->ops = fmt[0].ops;
|
|
|
600 lmcf->combined_used = 1;
|
|
118
|
601
|
|
|
602 return NGX_CONF_OK;
|
|
|
603 }
|
|
|
604
|
|
|
605
|
|
|
606 static char *
|
|
|
607 ngx_http_log_set_log(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
608 {
|
|
|
609 ngx_http_log_loc_conf_t *llcf = conf;
|
|
|
610
|
|
120
|
611 ssize_t buf;
|
|
118
|
612 ngx_uint_t i;
|
|
|
613 ngx_str_t *value, name;
|
|
|
614 ngx_http_log_t *log;
|
|
|
615 ngx_http_log_fmt_t *fmt;
|
|
|
616 ngx_http_log_main_conf_t *lmcf;
|
|
|
617
|
|
|
618 value = cf->args->elts;
|
|
|
619
|
|
|
620 if (ngx_strcmp(value[1].data, "off") == 0) {
|
|
|
621 llcf->off = 1;
|
|
|
622 return NGX_CONF_OK;
|
|
|
623 }
|
|
|
624
|
|
|
625 if (llcf->logs == NULL) {
|
|
|
626 llcf->logs = ngx_array_create(cf->pool, 2, sizeof(ngx_http_log_t));
|
|
|
627 if (llcf->logs == NULL) {
|
|
|
628 return NGX_CONF_ERROR;
|
|
|
629 }
|
|
|
630 }
|
|
|
631
|
|
|
632 lmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_log_module);
|
|
|
633
|
|
|
634 log = ngx_array_push(llcf->logs);
|
|
|
635 if (log == NULL) {
|
|
|
636 return NGX_CONF_ERROR;
|
|
|
637 }
|
|
|
638
|
|
|
639 log->file = ngx_conf_open_file(cf->cycle, &value[1]);
|
|
|
640 if (log->file == NULL) {
|
|
|
641 return NGX_CONF_ERROR;
|
|
|
642 }
|
|
|
643
|
|
182
|
644 log->disk_full_time = 0;
|
|
278
|
645 log->error_log_time = 0;
|
|
182
|
646
|
|
120
|
647 if (cf->args->nelts >= 3) {
|
|
118
|
648 name = value[2];
|
|
130
|
649
|
|
|
650 if (ngx_strcmp(name.data, "combined") == 0) {
|
|
|
651 lmcf->combined_used = 1;
|
|
|
652 }
|
|
|
653
|
|
118
|
654 } else {
|
|
|
655 name.len = sizeof("combined") - 1;
|
|
|
656 name.data = (u_char *) "combined";
|
|
122
|
657 lmcf->combined_used = 1;
|
|
118
|
658 }
|
|
|
659
|
|
|
660 fmt = lmcf->formats.elts;
|
|
|
661 for (i = 0; i < lmcf->formats.nelts; i++) {
|
|
|
662 if (fmt[i].name.len == name.len
|
|
|
663 && ngx_strcasecmp(fmt[i].name.data, name.data) == 0)
|
|
|
664 {
|
|
|
665 log->ops = fmt[i].ops;
|
|
120
|
666 goto buffer;
|
|
118
|
667 }
|
|
|
668 }
|
|
|
669
|
|
|
670 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
671 "unknown log format \"%V\"", &name);
|
|
120
|
672 return NGX_CONF_ERROR;
|
|
118
|
673
|
|
120
|
674 buffer:
|
|
|
675
|
|
|
676 if (cf->args->nelts == 4) {
|
|
|
677 if (ngx_strncmp(value[3].data, "buffer=", 7) != 0) {
|
|
|
678 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
679 "invalid parameter \"%V\"", &value[3]);
|
|
|
680 return NGX_CONF_ERROR;
|
|
|
681 }
|
|
|
682
|
|
|
683 name.len = value[3].len - 7;
|
|
|
684 name.data = value[3].data + 7;
|
|
|
685
|
|
|
686 buf = ngx_parse_size(&name);
|
|
|
687
|
|
|
688 if (buf == NGX_ERROR) {
|
|
|
689 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
690 "invalid parameter \"%V\"", &value[3]);
|
|
|
691 return NGX_CONF_ERROR;
|
|
|
692 }
|
|
|
693
|
|
|
694 if (log->file->buffer && log->file->last - log->file->pos != buf) {
|
|
|
695 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
696 "access_log \"%V\" already defined "
|
|
|
697 "with different buffer size", &value[1]);
|
|
|
698 return NGX_CONF_ERROR;
|
|
|
699 }
|
|
|
700
|
|
|
701 log->file->buffer = ngx_palloc(cf->pool, buf);
|
|
|
702 if (log->file->buffer == NULL) {
|
|
|
703 return NGX_CONF_ERROR;
|
|
|
704 }
|
|
|
705
|
|
|
706 log->file->pos = log->file->buffer;
|
|
|
707 log->file->last = log->file->buffer + buf;
|
|
|
708 }
|
|
|
709
|
|
|
710 return NGX_CONF_OK;
|
|
118
|
711 }
|
|
|
712
|
|
|
713
|
|
|
714 static char *
|
|
|
715 ngx_http_log_set_format(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
716 {
|
|
|
717 ngx_http_log_main_conf_t *lmcf = conf;
|
|
|
718
|
|
122
|
719 ngx_str_t *value;
|
|
|
720 ngx_uint_t i;
|
|
|
721 ngx_http_log_fmt_t *fmt;
|
|
118
|
722
|
|
|
723 value = cf->args->elts;
|
|
|
724
|
|
|
725 fmt = lmcf->formats.elts;
|
|
122
|
726 for (i = 0; i < lmcf->formats.nelts; i++) {
|
|
|
727 if (fmt[i].name.len == value[1].len
|
|
|
728 && ngx_strcmp(fmt[i].name.data, value[1].data) == 0)
|
|
118
|
729 {
|
|
|
730 return "duplicate \"log_format\" name";
|
|
|
731 }
|
|
|
732 }
|
|
|
733
|
|
|
734 fmt = ngx_array_push(&lmcf->formats);
|
|
|
735 if (fmt == NULL) {
|
|
|
736 return NGX_CONF_ERROR;
|
|
|
737 }
|
|
|
738
|
|
|
739 fmt->name = value[1];
|
|
|
740
|
|
122
|
741 fmt->ops = ngx_array_create(cf->pool, 16, sizeof(ngx_http_log_op_t));
|
|
118
|
742 if (fmt->ops == NULL) {
|
|
|
743 return NGX_CONF_ERROR;
|
|
|
744 }
|
|
|
745
|
|
122
|
746 return ngx_http_log_compile_format(cf, fmt->ops, cf->args, 2);
|
|
|
747 }
|
|
|
748
|
|
118
|
749
|
|
122
|
750 static char *
|
|
|
751 ngx_http_log_compile_format(ngx_conf_t *cf, ngx_array_t *ops,
|
|
|
752 ngx_array_t *args, ngx_uint_t s)
|
|
|
753 {
|
|
260
|
754 u_char *data, *p, ch;
|
|
|
755 size_t i, len;
|
|
|
756 ngx_str_t *value, var;
|
|
|
757 ngx_uint_t bracket;
|
|
|
758 ngx_http_log_op_t *op;
|
|
|
759 ngx_http_log_var_t *v;
|
|
122
|
760
|
|
|
761 value = args->elts;
|
|
|
762
|
|
|
763 for ( /* void */ ; s < args->nelts; s++) {
|
|
118
|
764
|
|
260
|
765 for (i = 0; i < value[s].len; i++) {
|
|
|
766 if (value[s].data[i] != '%') {
|
|
|
767 continue;
|
|
|
768 }
|
|
|
769
|
|
|
770 ch = value[s].data[i + 1];
|
|
|
771
|
|
|
772 if ((ch >= 'A' && ch <= 'Z')
|
|
|
773 || (ch >= 'a' && ch <= 'z')
|
|
|
774 || ch == '{')
|
|
|
775 {
|
|
|
776 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
777 "the parameters in the \"%%name\" form are not supported, "
|
|
|
778 "use the \"$variable\" instead");
|
|
|
779
|
|
|
780 return NGX_CONF_ERROR;
|
|
|
781 }
|
|
|
782 }
|
|
|
783
|
|
118
|
784 i = 0;
|
|
|
785
|
|
|
786 while (i < value[s].len) {
|
|
|
787
|
|
122
|
788 op = ngx_array_push(ops);
|
|
118
|
789 if (op == NULL) {
|
|
|
790 return NGX_CONF_ERROR;
|
|
|
791 }
|
|
|
792
|
|
|
793 data = &value[s].data[i];
|
|
|
794
|
|
260
|
795 if (value[s].data[i] == '$') {
|
|
118
|
796
|
|
|
797 if (++i == value[s].len) {
|
|
|
798 goto invalid;
|
|
|
799 }
|
|
|
800
|
|
|
801 if (value[s].data[i] == '{') {
|
|
|
802 bracket = 1;
|
|
|
803
|
|
|
804 if (++i == value[s].len) {
|
|
|
805 goto invalid;
|
|
|
806 }
|
|
|
807
|
|
|
808 var.data = &value[s].data[i];
|
|
|
809
|
|
|
810 } else {
|
|
|
811 bracket = 0;
|
|
|
812 var.data = &value[s].data[i];
|
|
|
813 }
|
|
|
814
|
|
|
815 for (var.len = 0; i < value[s].len; i++, var.len++) {
|
|
|
816 ch = value[s].data[i];
|
|
|
817
|
|
|
818 if (ch == '}' && bracket) {
|
|
|
819 i++;
|
|
|
820 bracket = 0;
|
|
|
821 break;
|
|
|
822 }
|
|
|
823
|
|
|
824 if ((ch >= 'A' && ch <= 'Z')
|
|
|
825 || (ch >= 'a' && ch <= 'z')
|
|
|
826 || (ch >= '0' && ch <= '9')
|
|
|
827 || ch == '_')
|
|
|
828 {
|
|
|
829 continue;
|
|
|
830 }
|
|
|
831
|
|
|
832 break;
|
|
|
833 }
|
|
|
834
|
|
|
835 if (bracket) {
|
|
|
836 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
837 "the closing bracket in \"%V\" "
|
|
|
838 "variable is missing", &var);
|
|
|
839 return NGX_CONF_ERROR;
|
|
|
840 }
|
|
|
841
|
|
|
842 if (var.len == 0) {
|
|
|
843 goto invalid;
|
|
|
844 }
|
|
|
845
|
|
126
|
846 if (ngx_strncmp(var.data, "apache_bytes_sent", 17) == 0) {
|
|
|
847 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
|
|
|
848 "use \"$body_bytes_sent\" instead of "
|
|
|
849 "\"$apache_bytes_sent\"");
|
|
|
850 }
|
|
|
851
|
|
122
|
852 for (v = ngx_http_log_vars; v->name.len; v++) {
|
|
|
853
|
|
|
854 if (v->name.len == var.len
|
|
|
855 && ngx_strncmp(v->name.data, var.data, var.len) == 0)
|
|
|
856 {
|
|
|
857 op->len = v->len;
|
|
|
858 op->getlen = NULL;
|
|
|
859 op->run = v->run;
|
|
|
860 op->data = 0;
|
|
|
861
|
|
|
862 goto found;
|
|
|
863 }
|
|
|
864 }
|
|
|
865
|
|
118
|
866 if (ngx_http_log_variable_compile(cf, op, &var) != NGX_OK) {
|
|
|
867 return NGX_CONF_ERROR;
|
|
|
868 }
|
|
|
869
|
|
122
|
870 found:
|
|
|
871
|
|
|
872 continue;
|
|
|
873 }
|
|
|
874
|
|
|
875 i++;
|
|
118
|
876
|
|
260
|
877 while (i < value[s].len && value[s].data[i] != '$') {
|
|
122
|
878 i++;
|
|
|
879 }
|
|
118
|
880
|
|
122
|
881 len = &value[s].data[i] - data;
|
|
118
|
882
|
|
122
|
883 if (len) {
|
|
118
|
884
|
|
122
|
885 op->len = len;
|
|
|
886 op->getlen = NULL;
|
|
118
|
887
|
|
122
|
888 if (len <= sizeof(uintptr_t)) {
|
|
|
889 op->run = ngx_http_log_copy_short;
|
|
|
890 op->data = 0;
|
|
118
|
891
|
|
122
|
892 while (len--) {
|
|
|
893 op->data <<= 8;
|
|
|
894 op->data |= data[len];
|
|
|
895 }
|
|
|
896
|
|
|
897 } else {
|
|
|
898 op->run = ngx_http_log_copy_long;
|
|
118
|
899
|
|
122
|
900 p = ngx_palloc(cf->pool, len);
|
|
|
901 if (p == NULL) {
|
|
|
902 return NGX_CONF_ERROR;
|
|
|
903 }
|
|
118
|
904
|
|
122
|
905 ngx_memcpy(p, data, len);
|
|
|
906 op->data = (uintptr_t) p;
|
|
118
|
907 }
|
|
|
908 }
|
|
|
909 }
|
|
|
910 }
|
|
|
911
|
|
|
912 return NGX_CONF_OK;
|
|
|
913
|
|
|
914 invalid:
|
|
|
915
|
|
|
916 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid parameter \"%s\"", data);
|
|
|
917
|
|
|
918 return NGX_CONF_ERROR;
|
|
|
919 }
|
|
|
920
|
|
|
921
|
|
|
922 static ngx_int_t
|
|
122
|
923 ngx_http_log_init(ngx_conf_t *cf)
|
|
118
|
924 {
|
|
122
|
925 ngx_str_t *value;
|
|
|
926 ngx_array_t a;
|
|
130
|
927 ngx_http_handler_pt *h;
|
|
122
|
928 ngx_http_log_fmt_t *fmt;
|
|
|
929 ngx_http_log_main_conf_t *lmcf;
|
|
118
|
930 ngx_http_core_main_conf_t *cmcf;
|
|
|
931
|
|
122
|
932 lmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_log_module);
|
|
|
933
|
|
|
934 if (lmcf->combined_used) {
|
|
|
935 if (ngx_array_init(&a, cf->pool, 1, sizeof(ngx_str_t)) != NGX_OK) {
|
|
|
936 return NGX_ERROR;
|
|
|
937 }
|
|
|
938
|
|
|
939 value = ngx_array_push(&a);
|
|
|
940 if (value == NULL) {
|
|
|
941 return NGX_ERROR;
|
|
|
942 }
|
|
|
943
|
|
|
944 *value = ngx_http_combined_fmt;
|
|
|
945 fmt = lmcf->formats.elts;
|
|
|
946
|
|
|
947 if (ngx_http_log_compile_format(cf, fmt->ops, &a, 0)
|
|
|
948 != NGX_CONF_OK)
|
|
|
949 {
|
|
|
950 return NGX_ERROR;
|
|
|
951 }
|
|
|
952 }
|
|
|
953
|
|
|
954 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module);
|
|
118
|
955
|
|
130
|
956 h = ngx_array_push(&cmcf->phases[NGX_HTTP_LOG_PHASE].handlers);
|
|
|
957 if (h == NULL) {
|
|
|
958 return NGX_ERROR;
|
|
|
959 }
|
|
|
960
|
|
|
961 *h = ngx_http_log_handler;
|
|
118
|
962
|
|
|
963 return NGX_OK;
|
|
|
964 }
|
