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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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376
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91 static uintptr_t ngx_http_log_escape(u_char *dst, u_char *src, size_t size);
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118
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92
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93
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94 static void *ngx_http_log_create_main_conf(ngx_conf_t *cf);
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95 static void *ngx_http_log_create_loc_conf(ngx_conf_t *cf);
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96 static char *ngx_http_log_merge_loc_conf(ngx_conf_t *cf, void *parent,
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97 void *child);
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98 static char *ngx_http_log_set_log(ngx_conf_t *cf, ngx_command_t *cmd,
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99 void *conf);
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100 static char *ngx_http_log_set_format(ngx_conf_t *cf, ngx_command_t *cmd,
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101 void *conf);
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122
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102 static char *ngx_http_log_compile_format(ngx_conf_t *cf,
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103 ngx_array_t *ops, ngx_array_t *args, ngx_uint_t s);
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104 static ngx_int_t ngx_http_log_init(ngx_conf_t *cf);
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118
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105
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106
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107 static ngx_command_t ngx_http_log_commands[] = {
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108
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109 { ngx_string("log_format"),
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110 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_2MORE,
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111 ngx_http_log_set_format,
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112 NGX_HTTP_MAIN_CONF_OFFSET,
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113 0,
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114 NULL },
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115
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116 { ngx_string("access_log"),
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194
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117 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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118 |NGX_HTTP_LMT_CONF|NGX_CONF_TAKE123,
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118
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119 ngx_http_log_set_log,
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120 NGX_HTTP_LOC_CONF_OFFSET,
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121 0,
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122 NULL },
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123
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124 ngx_null_command
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125 };
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126
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127
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216
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128 static ngx_http_module_t ngx_http_log_module_ctx = {
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260
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129 NULL, /* preconfiguration */
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122
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130 ngx_http_log_init, /* postconfiguration */
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118
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131
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132 ngx_http_log_create_main_conf, /* create main configuration */
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133 NULL, /* init main configuration */
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134
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135 NULL, /* create server configuration */
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136 NULL, /* merge server configuration */
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137
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138 ngx_http_log_create_loc_conf, /* create location configration */
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139 ngx_http_log_merge_loc_conf /* merge location configration */
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140 };
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141
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142
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143 ngx_module_t ngx_http_log_module = {
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144 NGX_MODULE_V1,
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145 &ngx_http_log_module_ctx, /* module context */
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146 ngx_http_log_commands, /* module directives */
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147 NGX_HTTP_MODULE, /* module type */
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148 NULL, /* init master */
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122
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149 NULL, /* init module */
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118
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150 NULL, /* init process */
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151 NULL, /* init thread */
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152 NULL, /* exit thread */
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153 NULL, /* exit process */
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154 NULL, /* exit master */
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155 NGX_MODULE_V1_PADDING
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156 };
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157
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158
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278
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159 static ngx_str_t ngx_http_access_log = ngx_string(NGX_HTTP_LOG_PATH);
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122
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160
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161
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162 static ngx_str_t ngx_http_combined_fmt =
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130
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163 ngx_string("$remote_addr - $remote_user [$time_local] "
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126
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164 "\"$request\" $status $body_bytes_sent "
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122
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165 "\"$http_referer\" \"$http_user_agent\"");
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118
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166
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167
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122
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168 static ngx_http_log_var_t ngx_http_log_vars[] = {
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169 { ngx_string("connection"), NGX_ATOMIC_T_LEN, ngx_http_log_connection },
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170 { ngx_string("pipe"), 1, ngx_http_log_pipe },
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130
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171 { ngx_string("time_local"), sizeof("28/Sep/1970:12:00:00 +0600") - 1,
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122
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172 ngx_http_log_time },
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173 { ngx_string("msec"), NGX_TIME_T_LEN + 4, ngx_http_log_msec },
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298
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174 { ngx_string("request_time"), NGX_TIME_T_LEN + 4,
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175 ngx_http_log_request_time },
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122
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176 { ngx_string("status"), 3, ngx_http_log_status },
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177 { ngx_string("bytes_sent"), NGX_OFF_T_LEN, ngx_http_log_bytes_sent },
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126
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178 { ngx_string("body_bytes_sent"), NGX_OFF_T_LEN,
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179 ngx_http_log_body_bytes_sent },
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122
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180 { ngx_string("apache_bytes_sent"), NGX_OFF_T_LEN,
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126
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181 ngx_http_log_body_bytes_sent },
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122
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182 { ngx_string("request_length"), NGX_SIZE_T_LEN,
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183 ngx_http_log_request_length },
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184
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185 { ngx_null_string, 0, NULL }
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186 };
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118
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187
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188
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189 ngx_int_t
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190 ngx_http_log_handler(ngx_http_request_t *r)
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191 {
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192 u_char *line, *p;
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193 size_t len;
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278
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194 ngx_uint_t i, l;
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118
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195 ngx_http_log_t *log;
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120
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196 ngx_open_file_t *file;
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118
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197 ngx_http_log_op_t *op;
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198 ngx_http_log_loc_conf_t *lcf;
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199
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200 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
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201 "http log handler");
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202
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203 lcf = ngx_http_get_module_loc_conf(r, ngx_http_log_module);
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204
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205 if (lcf->off) {
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206 return NGX_OK;
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207 }
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208
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209 log = lcf->logs->elts;
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210 for (l = 0; l < lcf->logs->nelts; l++) {
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211
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182
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212 if (ngx_time() == log[l].disk_full_time) {
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213
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214 /*
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278
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215 * on FreeBSD writing to a full filesystem with enabled softupdates
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182
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216 * may block process for much longer time than writing to non-full
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278
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217 * filesystem, so we skip writing to a log for one second
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182
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218 */
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219
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220 continue;
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221 }
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222
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118
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223 len = 0;
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224 op = log[l].ops->elts;
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225 for (i = 0; i < log[l].ops->nelts; i++) {
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226 if (op[i].len == 0) {
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227 len += op[i].getlen(r, op[i].data);
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228
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229 } else {
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230 len += op[i].len;
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231 }
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232 }
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233
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120
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234 len += NGX_LINEFEED_SIZE;
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235
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236 file = log[l].file;
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237
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238 if (file->buffer) {
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239
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240 if (len > (size_t) (file->last - file->pos)) {
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241
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278
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242 ngx_http_log_write(r, &log[l], file->buffer,
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243 file->pos - file->buffer);
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120
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244
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245 file->pos = file->buffer;
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246 }
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247
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248 if (len <= (size_t) (file->last - file->pos)) {
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249
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250 p = file->pos;
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251
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252 for (i = 0; i < log[l].ops->nelts; i++) {
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253 p = op[i].run(r, p, &op[i]);
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254 }
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255
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256 ngx_linefeed(p);
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257
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258 file->pos = p;
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259
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260 continue;
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261 }
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262 }
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118
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263
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264 line = ngx_palloc(r->pool, len);
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265 if (line == NULL) {
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266 return NGX_ERROR;
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267 }
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268
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269 p = line;
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270
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271 for (i = 0; i < log[l].ops->nelts; i++) {
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272 p = op[i].run(r, p, &op[i]);
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273 }
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274
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120
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275 ngx_linefeed(p);
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276
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278
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277 ngx_http_log_write(r, &log[l], line, p - line);
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118
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278 }
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279
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280 return NGX_OK;
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281 }
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282
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283
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278
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284 static void
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285 ngx_http_log_write(ngx_http_request_t *r, ngx_http_log_t *log, u_char *buf,
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286 size_t len)
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287 {
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288 time_t now;
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289 ssize_t n;
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290 ngx_err_t err;
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291
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292 n = ngx_write_fd(log->file->fd, buf, len);
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293
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294 if (n == (ssize_t) len) {
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295 return;
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296 }
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297
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298 now = ngx_time();
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299
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300 if (n == -1) {
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301 err = ngx_errno;
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302
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303 if (err == NGX_ENOSPC) {
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304 log->disk_full_time = now;
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305 }
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306
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296
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307 if (now - log->error_log_time > 59) {
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278
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308 ngx_log_error(NGX_LOG_ALERT, r->connection->log, err,
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309 ngx_write_fd_n " to \"%V\" failed",
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310 &log->file->name);
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311
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312 log->error_log_time = now;
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313 }
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314
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315 return;
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316 }
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317
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296
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318 if (now - log->error_log_time > 59) {
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278
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319 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
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320 ngx_write_fd_n " to \"%V\" was incomplete: %z of %uz",
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321 &log->file->name, n, len);
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322
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323 log->error_log_time = now;
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324 }
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325 }
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326
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327
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118
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328 static u_char *
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329 ngx_http_log_copy_short(ngx_http_request_t *r, u_char *buf,
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330 ngx_http_log_op_t *op)
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331 {
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332 size_t len;
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333 uintptr_t data;
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334
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335 len = op->len;
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336 data = op->data;
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337
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338 while (len--) {
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339 *buf++ = (u_char) (data & 0xff);
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340 data >>= 8;
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341 }
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342
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343 return buf;
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344 }
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345
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346
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347 static u_char *
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348 ngx_http_log_copy_long(ngx_http_request_t *r, u_char *buf,
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349 ngx_http_log_op_t *op)
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350 {
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351 return ngx_cpymem(buf, (u_char *) op->data, op->len);
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352 }
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353
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354
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355 static u_char *
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356 ngx_http_log_connection(ngx_http_request_t *r, u_char *buf,
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357 ngx_http_log_op_t *op)
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358 {
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359 return ngx_sprintf(buf, "%ui", r->connection->number);
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360 }
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361
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362
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363 static u_char *
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364 ngx_http_log_pipe(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op)
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365 {
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366 if (r->pipeline) {
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367 *buf = 'p';
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368 } else {
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369 *buf = '.';
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370 }
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371
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372 return buf + 1;
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373 }
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374
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375
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376 static u_char *
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377 ngx_http_log_time(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op)
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378 {
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|
379 return ngx_cpymem(buf, ngx_cached_http_log_time.data,
|
|
|
380 ngx_cached_http_log_time.len);
|
|
|
381 }
|
|
|
382
|
|
|
383
|
|
|
384 static u_char *
|
|
|
385 ngx_http_log_msec(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op)
|
|
|
386 {
|
|
|
387 ngx_time_t *tp;
|
|
|
388
|
|
|
389 tp = ngx_timeofday();
|
|
|
390
|
|
|
391 return ngx_sprintf(buf, "%T.%03M", tp->sec, tp->msec);
|
|
|
392 }
|
|
|
393
|
|
|
394
|
|
|
395 static u_char *
|
|
|
396 ngx_http_log_request_time(ngx_http_request_t *r, u_char *buf,
|
|
|
397 ngx_http_log_op_t *op)
|
|
|
398 {
|
|
298
|
399 ngx_time_t *tp;
|
|
|
400 ngx_msec_int_t ms;
|
|
|
401
|
|
|
402 tp = ngx_timeofday();
|
|
118
|
403
|
|
346
|
404 ms = (ngx_msec_int_t)
|
|
|
405 ((tp->sec - r->start_sec) * 1000 + (tp->msec - r->start_msec));
|
|
298
|
406 ms = (ms >= 0) ? ms : 0;
|
|
118
|
407
|
|
298
|
408 return ngx_sprintf(buf, "%T.%03M", ms / 1000, ms % 1000);
|
|
118
|
409 }
|
|
|
410
|
|
|
411
|
|
|
412 static u_char *
|
|
|
413 ngx_http_log_status(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op)
|
|
|
414 {
|
|
|
415 return ngx_sprintf(buf, "%ui",
|
|
|
416 r->err_status ? r->err_status : r->headers_out.status);
|
|
|
417 }
|
|
|
418
|
|
|
419
|
|
|
420 static u_char *
|
|
122
|
421 ngx_http_log_bytes_sent(ngx_http_request_t *r, u_char *buf,
|
|
|
422 ngx_http_log_op_t *op)
|
|
118
|
423 {
|
|
|
424 return ngx_sprintf(buf, "%O", r->connection->sent);
|
|
|
425 }
|
|
|
426
|
|
|
427
|
|
316
|
428 /*
|
|
|
429 * although there is a real $body_bytes_sent variable,
|
|
|
430 * this log operation code function is more optimized for logging
|
|
|
431 */
|
|
|
432
|
|
118
|
433 static u_char *
|
|
126
|
434 ngx_http_log_body_bytes_sent(ngx_http_request_t *r, u_char *buf,
|
|
118
|
435 ngx_http_log_op_t *op)
|
|
|
436 {
|
|
|
437 off_t length;
|
|
|
438
|
|
|
439 length = r->connection->sent - r->header_size;
|
|
|
440
|
|
|
441 if (length > 0) {
|
|
|
442 return ngx_sprintf(buf, "%O", length);
|
|
|
443 }
|
|
|
444
|
|
|
445 *buf = '0';
|
|
|
446
|
|
|
447 return buf + 1;
|
|
|
448 }
|
|
|
449
|
|
|
450
|
|
|
451 static u_char *
|
|
|
452 ngx_http_log_request_length(ngx_http_request_t *r, u_char *buf,
|
|
|
453 ngx_http_log_op_t *op)
|
|
|
454 {
|
|
212
|
455 return ngx_sprintf(buf, "%O", r->request_length);
|
|
118
|
456 }
|
|
|
457
|
|
|
458
|
|
|
459 static ngx_int_t
|
|
|
460 ngx_http_log_variable_compile(ngx_conf_t *cf, ngx_http_log_op_t *op,
|
|
|
461 ngx_str_t *value)
|
|
|
462 {
|
|
|
463 ngx_int_t index;
|
|
|
464
|
|
|
465 index = ngx_http_get_variable_index(cf, value);
|
|
|
466 if (index == NGX_ERROR) {
|
|
|
467 return NGX_ERROR;
|
|
|
468 }
|
|
|
469
|
|
|
470 op->len = 0;
|
|
|
471 op->getlen = ngx_http_log_variable_getlen;
|
|
|
472 op->run = ngx_http_log_variable;
|
|
|
473 op->data = index;
|
|
|
474
|
|
|
475 return NGX_OK;
|
|
|
476 }
|
|
|
477
|
|
|
478
|
|
|
479 static size_t
|
|
|
480 ngx_http_log_variable_getlen(ngx_http_request_t *r, uintptr_t data)
|
|
|
481 {
|
|
376
|
482 uintptr_t len;
|
|
118
|
483 ngx_http_variable_value_t *value;
|
|
|
484
|
|
|
485 value = ngx_http_get_indexed_variable(r, data);
|
|
|
486
|
|
122
|
487 if (value == NULL || value->not_found) {
|
|
118
|
488 return 1;
|
|
|
489 }
|
|
|
490
|
|
376
|
491 len = ngx_http_log_escape(NULL, value->data, value->len);
|
|
|
492
|
|
|
493 value->escape = len ? 1 : 0;
|
|
|
494
|
|
|
495 return value->len + len * 3;
|
|
118
|
496 }
|
|
|
497
|
|
|
498
|
|
|
499 static u_char *
|
|
|
500 ngx_http_log_variable(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op)
|
|
|
501 {
|
|
|
502 ngx_http_variable_value_t *value;
|
|
|
503
|
|
|
504 value = ngx_http_get_indexed_variable(r, op->data);
|
|
|
505
|
|
122
|
506 if (value == NULL || value->not_found) {
|
|
118
|
507 *buf = '-';
|
|
|
508 return buf + 1;
|
|
|
509 }
|
|
|
510
|
|
376
|
511 if (value->escape == 0) {
|
|
|
512 return ngx_cpymem(buf, value->data, value->len);
|
|
|
513
|
|
|
514 } else {
|
|
|
515 return (u_char *) ngx_http_log_escape(buf, value->data, value->len);
|
|
|
516 }
|
|
|
517 }
|
|
|
518
|
|
|
519
|
|
|
520 static uintptr_t
|
|
|
521 ngx_http_log_escape(u_char *dst, u_char *src, size_t size)
|
|
|
522 {
|
|
|
523 ngx_uint_t i, n;
|
|
|
524 static u_char hex[] = "0123456789ABCDEF";
|
|
|
525
|
|
|
526 static uint32_t escape[] = {
|
|
|
527 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
528
|
|
|
529 /* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */
|
|
|
530 0x00000004, /* 0000 0000 0000 0000 0000 0000 0000 0100 */
|
|
|
531
|
|
|
532 /* _^]\ [ZYX WVUT SRQP ONML KJIH GFED CBA@ */
|
|
|
533 0x10000000, /* 0001 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
534
|
|
|
535 /* ~}| {zyx wvut srqp onml kjih gfed cba` */
|
|
|
536 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
537
|
|
|
538 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
539 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
540 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
541 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
542 };
|
|
|
543
|
|
|
544
|
|
|
545 if (dst == NULL) {
|
|
|
546
|
|
|
547 /* find the number of the characters to be escaped */
|
|
|
548
|
|
|
549 n = 0;
|
|
|
550
|
|
|
551 for (i = 0; i < size; i++) {
|
|
|
552 if (escape[*src >> 5] & (1 << (*src & 0x1f))) {
|
|
|
553 n++;
|
|
|
554 }
|
|
|
555 src++;
|
|
|
556 }
|
|
|
557
|
|
|
558 return (uintptr_t) n;
|
|
|
559 }
|
|
|
560
|
|
|
561 for (i = 0; i < size; i++) {
|
|
|
562 if (escape[*src >> 5] & (1 << (*src & 0x1f))) {
|
|
|
563 *dst++ = '\\';
|
|
|
564 *dst++ = 'x';
|
|
|
565 *dst++ = hex[*src >> 4];
|
|
|
566 *dst++ = hex[*src & 0xf];
|
|
|
567 src++;
|
|
|
568
|
|
|
569 } else {
|
|
|
570 *dst++ = *src++;
|
|
|
571 }
|
|
|
572 }
|
|
|
573
|
|
|
574 return (uintptr_t) dst;
|
|
118
|
575 }
|
|
|
576
|
|
|
577
|
|
|
578 static void *
|
|
|
579 ngx_http_log_create_main_conf(ngx_conf_t *cf)
|
|
|
580 {
|
|
|
581 ngx_http_log_main_conf_t *conf;
|
|
|
582
|
|
122
|
583 ngx_http_log_fmt_t *fmt;
|
|
118
|
584
|
|
|
585 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_log_main_conf_t));
|
|
|
586 if (conf == NULL) {
|
|
|
587 return NGX_CONF_ERROR;
|
|
|
588 }
|
|
|
589
|
|
|
590 if (ngx_array_init(&conf->formats, cf->pool, 4, sizeof(ngx_http_log_fmt_t))
|
|
122
|
591 != NGX_OK)
|
|
118
|
592 {
|
|
|
593 return NGX_CONF_ERROR;
|
|
|
594 }
|
|
|
595
|
|
122
|
596 fmt = ngx_array_push(&conf->formats);
|
|
|
597 if (fmt == NULL) {
|
|
118
|
598 return NGX_CONF_ERROR;
|
|
|
599 }
|
|
|
600
|
|
122
|
601 fmt->name.len = sizeof("combined") - 1;
|
|
|
602 fmt->name.data = (u_char *) "combined";
|
|
118
|
603
|
|
122
|
604 fmt->ops = ngx_array_create(cf->pool, 16, sizeof(ngx_http_log_op_t));
|
|
|
605 if (fmt->ops == NULL) {
|
|
118
|
606 return NGX_CONF_ERROR;
|
|
|
607 }
|
|
|
608
|
|
|
609 return conf;
|
|
|
610 }
|
|
|
611
|
|
|
612
|
|
|
613 static void *
|
|
|
614 ngx_http_log_create_loc_conf(ngx_conf_t *cf)
|
|
|
615 {
|
|
|
616 ngx_http_log_loc_conf_t *conf;
|
|
|
617
|
|
|
618 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_log_loc_conf_t));
|
|
|
619 if (conf == NULL) {
|
|
|
620 return NGX_CONF_ERROR;
|
|
|
621 }
|
|
|
622
|
|
|
623 return conf;
|
|
|
624 }
|
|
|
625
|
|
|
626
|
|
|
627 static char *
|
|
|
628 ngx_http_log_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child)
|
|
|
629 {
|
|
|
630 ngx_http_log_loc_conf_t *prev = parent;
|
|
|
631 ngx_http_log_loc_conf_t *conf = child;
|
|
|
632
|
|
|
633 ngx_http_log_t *log;
|
|
|
634 ngx_http_log_fmt_t *fmt;
|
|
|
635 ngx_http_log_main_conf_t *lmcf;
|
|
|
636
|
|
278
|
637 if (conf->logs || conf->off) {
|
|
|
638 return NGX_CONF_OK;
|
|
|
639 }
|
|
118
|
640
|
|
278
|
641 *conf = *prev;
|
|
118
|
642
|
|
278
|
643 if (conf->logs || conf->off) {
|
|
|
644 return NGX_CONF_OK;
|
|
|
645 }
|
|
118
|
646
|
|
278
|
647 conf->logs = ngx_array_create(cf->pool, 2, sizeof(ngx_http_log_t));
|
|
|
648 if (conf->logs == NULL) {
|
|
|
649 return NGX_CONF_ERROR;
|
|
|
650 }
|
|
118
|
651
|
|
278
|
652 log = ngx_array_push(conf->logs);
|
|
|
653 if (log == NULL) {
|
|
|
654 return NGX_CONF_ERROR;
|
|
|
655 }
|
|
118
|
656
|
|
278
|
657 log->file = ngx_conf_open_file(cf->cycle, &ngx_http_access_log);
|
|
|
658 if (log->file == NULL) {
|
|
|
659 return NGX_CONF_ERROR;
|
|
|
660 }
|
|
118
|
661
|
|
278
|
662 log->disk_full_time = 0;
|
|
|
663 log->error_log_time = 0;
|
|
118
|
664
|
|
278
|
665 lmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_log_module);
|
|
|
666 fmt = lmcf->formats.elts;
|
|
|
667
|
|
|
668 /* the default "combined" format */
|
|
|
669 log->ops = fmt[0].ops;
|
|
|
670 lmcf->combined_used = 1;
|
|
118
|
671
|
|
|
672 return NGX_CONF_OK;
|
|
|
673 }
|
|
|
674
|
|
|
675
|
|
|
676 static char *
|
|
|
677 ngx_http_log_set_log(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
678 {
|
|
|
679 ngx_http_log_loc_conf_t *llcf = conf;
|
|
|
680
|
|
120
|
681 ssize_t buf;
|
|
118
|
682 ngx_uint_t i;
|
|
|
683 ngx_str_t *value, name;
|
|
|
684 ngx_http_log_t *log;
|
|
|
685 ngx_http_log_fmt_t *fmt;
|
|
|
686 ngx_http_log_main_conf_t *lmcf;
|
|
|
687
|
|
|
688 value = cf->args->elts;
|
|
|
689
|
|
|
690 if (ngx_strcmp(value[1].data, "off") == 0) {
|
|
|
691 llcf->off = 1;
|
|
|
692 return NGX_CONF_OK;
|
|
|
693 }
|
|
|
694
|
|
|
695 if (llcf->logs == NULL) {
|
|
|
696 llcf->logs = ngx_array_create(cf->pool, 2, sizeof(ngx_http_log_t));
|
|
|
697 if (llcf->logs == NULL) {
|
|
|
698 return NGX_CONF_ERROR;
|
|
|
699 }
|
|
|
700 }
|
|
|
701
|
|
|
702 lmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_log_module);
|
|
|
703
|
|
|
704 log = ngx_array_push(llcf->logs);
|
|
|
705 if (log == NULL) {
|
|
|
706 return NGX_CONF_ERROR;
|
|
|
707 }
|
|
|
708
|
|
|
709 log->file = ngx_conf_open_file(cf->cycle, &value[1]);
|
|
|
710 if (log->file == NULL) {
|
|
|
711 return NGX_CONF_ERROR;
|
|
|
712 }
|
|
|
713
|
|
182
|
714 log->disk_full_time = 0;
|
|
278
|
715 log->error_log_time = 0;
|
|
182
|
716
|
|
120
|
717 if (cf->args->nelts >= 3) {
|
|
118
|
718 name = value[2];
|
|
130
|
719
|
|
|
720 if (ngx_strcmp(name.data, "combined") == 0) {
|
|
|
721 lmcf->combined_used = 1;
|
|
|
722 }
|
|
|
723
|
|
118
|
724 } else {
|
|
|
725 name.len = sizeof("combined") - 1;
|
|
|
726 name.data = (u_char *) "combined";
|
|
122
|
727 lmcf->combined_used = 1;
|
|
118
|
728 }
|
|
|
729
|
|
|
730 fmt = lmcf->formats.elts;
|
|
|
731 for (i = 0; i < lmcf->formats.nelts; i++) {
|
|
|
732 if (fmt[i].name.len == name.len
|
|
|
733 && ngx_strcasecmp(fmt[i].name.data, name.data) == 0)
|
|
|
734 {
|
|
|
735 log->ops = fmt[i].ops;
|
|
120
|
736 goto buffer;
|
|
118
|
737 }
|
|
|
738 }
|
|
|
739
|
|
|
740 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
741 "unknown log format \"%V\"", &name);
|
|
120
|
742 return NGX_CONF_ERROR;
|
|
118
|
743
|
|
120
|
744 buffer:
|
|
|
745
|
|
|
746 if (cf->args->nelts == 4) {
|
|
|
747 if (ngx_strncmp(value[3].data, "buffer=", 7) != 0) {
|
|
|
748 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
749 "invalid parameter \"%V\"", &value[3]);
|
|
|
750 return NGX_CONF_ERROR;
|
|
|
751 }
|
|
|
752
|
|
|
753 name.len = value[3].len - 7;
|
|
|
754 name.data = value[3].data + 7;
|
|
|
755
|
|
|
756 buf = ngx_parse_size(&name);
|
|
|
757
|
|
|
758 if (buf == NGX_ERROR) {
|
|
|
759 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
760 "invalid parameter \"%V\"", &value[3]);
|
|
|
761 return NGX_CONF_ERROR;
|
|
|
762 }
|
|
|
763
|
|
|
764 if (log->file->buffer && log->file->last - log->file->pos != buf) {
|
|
|
765 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
766 "access_log \"%V\" already defined "
|
|
|
767 "with different buffer size", &value[1]);
|
|
|
768 return NGX_CONF_ERROR;
|
|
|
769 }
|
|
|
770
|
|
|
771 log->file->buffer = ngx_palloc(cf->pool, buf);
|
|
|
772 if (log->file->buffer == NULL) {
|
|
|
773 return NGX_CONF_ERROR;
|
|
|
774 }
|
|
|
775
|
|
|
776 log->file->pos = log->file->buffer;
|
|
|
777 log->file->last = log->file->buffer + buf;
|
|
|
778 }
|
|
|
779
|
|
|
780 return NGX_CONF_OK;
|
|
118
|
781 }
|
|
|
782
|
|
|
783
|
|
|
784 static char *
|
|
|
785 ngx_http_log_set_format(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
786 {
|
|
|
787 ngx_http_log_main_conf_t *lmcf = conf;
|
|
|
788
|
|
122
|
789 ngx_str_t *value;
|
|
|
790 ngx_uint_t i;
|
|
|
791 ngx_http_log_fmt_t *fmt;
|
|
118
|
792
|
|
|
793 value = cf->args->elts;
|
|
|
794
|
|
|
795 fmt = lmcf->formats.elts;
|
|
122
|
796 for (i = 0; i < lmcf->formats.nelts; i++) {
|
|
|
797 if (fmt[i].name.len == value[1].len
|
|
|
798 && ngx_strcmp(fmt[i].name.data, value[1].data) == 0)
|
|
118
|
799 {
|
|
|
800 return "duplicate \"log_format\" name";
|
|
|
801 }
|
|
|
802 }
|
|
|
803
|
|
|
804 fmt = ngx_array_push(&lmcf->formats);
|
|
|
805 if (fmt == NULL) {
|
|
|
806 return NGX_CONF_ERROR;
|
|
|
807 }
|
|
|
808
|
|
|
809 fmt->name = value[1];
|
|
|
810
|
|
122
|
811 fmt->ops = ngx_array_create(cf->pool, 16, sizeof(ngx_http_log_op_t));
|
|
118
|
812 if (fmt->ops == NULL) {
|
|
|
813 return NGX_CONF_ERROR;
|
|
|
814 }
|
|
|
815
|
|
122
|
816 return ngx_http_log_compile_format(cf, fmt->ops, cf->args, 2);
|
|
|
817 }
|
|
|
818
|
|
118
|
819
|
|
122
|
820 static char *
|
|
|
821 ngx_http_log_compile_format(ngx_conf_t *cf, ngx_array_t *ops,
|
|
|
822 ngx_array_t *args, ngx_uint_t s)
|
|
|
823 {
|
|
260
|
824 u_char *data, *p, ch;
|
|
|
825 size_t i, len;
|
|
|
826 ngx_str_t *value, var;
|
|
|
827 ngx_uint_t bracket;
|
|
|
828 ngx_http_log_op_t *op;
|
|
|
829 ngx_http_log_var_t *v;
|
|
122
|
830
|
|
|
831 value = args->elts;
|
|
|
832
|
|
|
833 for ( /* void */ ; s < args->nelts; s++) {
|
|
118
|
834
|
|
260
|
835 for (i = 0; i < value[s].len; i++) {
|
|
|
836 if (value[s].data[i] != '%') {
|
|
|
837 continue;
|
|
|
838 }
|
|
|
839
|
|
|
840 ch = value[s].data[i + 1];
|
|
|
841
|
|
|
842 if ((ch >= 'A' && ch <= 'Z')
|
|
|
843 || (ch >= 'a' && ch <= 'z')
|
|
|
844 || ch == '{')
|
|
|
845 {
|
|
|
846 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
847 "the parameters in the \"%%name\" form are not supported, "
|
|
|
848 "use the \"$variable\" instead");
|
|
|
849
|
|
|
850 return NGX_CONF_ERROR;
|
|
|
851 }
|
|
|
852 }
|
|
|
853
|
|
118
|
854 i = 0;
|
|
|
855
|
|
|
856 while (i < value[s].len) {
|
|
|
857
|
|
122
|
858 op = ngx_array_push(ops);
|
|
118
|
859 if (op == NULL) {
|
|
|
860 return NGX_CONF_ERROR;
|
|
|
861 }
|
|
|
862
|
|
|
863 data = &value[s].data[i];
|
|
|
864
|
|
260
|
865 if (value[s].data[i] == '$') {
|
|
118
|
866
|
|
|
867 if (++i == value[s].len) {
|
|
|
868 goto invalid;
|
|
|
869 }
|
|
|
870
|
|
|
871 if (value[s].data[i] == '{') {
|
|
|
872 bracket = 1;
|
|
|
873
|
|
|
874 if (++i == value[s].len) {
|
|
|
875 goto invalid;
|
|
|
876 }
|
|
|
877
|
|
|
878 var.data = &value[s].data[i];
|
|
|
879
|
|
|
880 } else {
|
|
|
881 bracket = 0;
|
|
|
882 var.data = &value[s].data[i];
|
|
|
883 }
|
|
|
884
|
|
|
885 for (var.len = 0; i < value[s].len; i++, var.len++) {
|
|
|
886 ch = value[s].data[i];
|
|
|
887
|
|
|
888 if (ch == '}' && bracket) {
|
|
|
889 i++;
|
|
|
890 bracket = 0;
|
|
|
891 break;
|
|
|
892 }
|
|
|
893
|
|
|
894 if ((ch >= 'A' && ch <= 'Z')
|
|
|
895 || (ch >= 'a' && ch <= 'z')
|
|
|
896 || (ch >= '0' && ch <= '9')
|
|
|
897 || ch == '_')
|
|
|
898 {
|
|
|
899 continue;
|
|
|
900 }
|
|
|
901
|
|
|
902 break;
|
|
|
903 }
|
|
|
904
|
|
|
905 if (bracket) {
|
|
|
906 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
907 "the closing bracket in \"%V\" "
|
|
|
908 "variable is missing", &var);
|
|
|
909 return NGX_CONF_ERROR;
|
|
|
910 }
|
|
|
911
|
|
|
912 if (var.len == 0) {
|
|
|
913 goto invalid;
|
|
|
914 }
|
|
|
915
|
|
126
|
916 if (ngx_strncmp(var.data, "apache_bytes_sent", 17) == 0) {
|
|
|
917 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
|
|
|
918 "use \"$body_bytes_sent\" instead of "
|
|
|
919 "\"$apache_bytes_sent\"");
|
|
|
920 }
|
|
|
921
|
|
122
|
922 for (v = ngx_http_log_vars; v->name.len; v++) {
|
|
|
923
|
|
|
924 if (v->name.len == var.len
|
|
|
925 && ngx_strncmp(v->name.data, var.data, var.len) == 0)
|
|
|
926 {
|
|
|
927 op->len = v->len;
|
|
|
928 op->getlen = NULL;
|
|
|
929 op->run = v->run;
|
|
|
930 op->data = 0;
|
|
|
931
|
|
|
932 goto found;
|
|
|
933 }
|
|
|
934 }
|
|
|
935
|
|
118
|
936 if (ngx_http_log_variable_compile(cf, op, &var) != NGX_OK) {
|
|
|
937 return NGX_CONF_ERROR;
|
|
|
938 }
|
|
|
939
|
|
122
|
940 found:
|
|
|
941
|
|
|
942 continue;
|
|
|
943 }
|
|
|
944
|
|
|
945 i++;
|
|
118
|
946
|
|
260
|
947 while (i < value[s].len && value[s].data[i] != '$') {
|
|
122
|
948 i++;
|
|
|
949 }
|
|
118
|
950
|
|
122
|
951 len = &value[s].data[i] - data;
|
|
118
|
952
|
|
122
|
953 if (len) {
|
|
118
|
954
|
|
122
|
955 op->len = len;
|
|
|
956 op->getlen = NULL;
|
|
118
|
957
|
|
122
|
958 if (len <= sizeof(uintptr_t)) {
|
|
|
959 op->run = ngx_http_log_copy_short;
|
|
|
960 op->data = 0;
|
|
118
|
961
|
|
122
|
962 while (len--) {
|
|
|
963 op->data <<= 8;
|
|
|
964 op->data |= data[len];
|
|
|
965 }
|
|
|
966
|
|
|
967 } else {
|
|
|
968 op->run = ngx_http_log_copy_long;
|
|
118
|
969
|
|
122
|
970 p = ngx_palloc(cf->pool, len);
|
|
|
971 if (p == NULL) {
|
|
|
972 return NGX_CONF_ERROR;
|
|
|
973 }
|
|
118
|
974
|
|
122
|
975 ngx_memcpy(p, data, len);
|
|
|
976 op->data = (uintptr_t) p;
|
|
118
|
977 }
|
|
|
978 }
|
|
|
979 }
|
|
|
980 }
|
|
|
981
|
|
|
982 return NGX_CONF_OK;
|
|
|
983
|
|
|
984 invalid:
|
|
|
985
|
|
|
986 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid parameter \"%s\"", data);
|
|
|
987
|
|
|
988 return NGX_CONF_ERROR;
|
|
|
989 }
|
|
|
990
|
|
|
991
|
|
|
992 static ngx_int_t
|
|
122
|
993 ngx_http_log_init(ngx_conf_t *cf)
|
|
118
|
994 {
|
|
122
|
995 ngx_str_t *value;
|
|
|
996 ngx_array_t a;
|
|
130
|
997 ngx_http_handler_pt *h;
|
|
122
|
998 ngx_http_log_fmt_t *fmt;
|
|
|
999 ngx_http_log_main_conf_t *lmcf;
|
|
118
|
1000 ngx_http_core_main_conf_t *cmcf;
|
|
|
1001
|
|
122
|
1002 lmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_log_module);
|
|
|
1003
|
|
|
1004 if (lmcf->combined_used) {
|
|
|
1005 if (ngx_array_init(&a, cf->pool, 1, sizeof(ngx_str_t)) != NGX_OK) {
|
|
|
1006 return NGX_ERROR;
|
|
|
1007 }
|
|
|
1008
|
|
|
1009 value = ngx_array_push(&a);
|
|
|
1010 if (value == NULL) {
|
|
|
1011 return NGX_ERROR;
|
|
|
1012 }
|
|
|
1013
|
|
|
1014 *value = ngx_http_combined_fmt;
|
|
|
1015 fmt = lmcf->formats.elts;
|
|
|
1016
|
|
|
1017 if (ngx_http_log_compile_format(cf, fmt->ops, &a, 0)
|
|
|
1018 != NGX_CONF_OK)
|
|
|
1019 {
|
|
|
1020 return NGX_ERROR;
|
|
|
1021 }
|
|
|
1022 }
|
|
|
1023
|
|
|
1024 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module);
|
|
118
|
1025
|
|
130
|
1026 h = ngx_array_push(&cmcf->phases[NGX_HTTP_LOG_PHASE].handlers);
|
|
|
1027 if (h == NULL) {
|
|
|
1028 return NGX_ERROR;
|
|
|
1029 }
|
|
|
1030
|
|
|
1031 *h = ngx_http_log_handler;
|
|
118
|
1032
|
|
|
1033 return NGX_OK;
|
|
|
1034 }
|
