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46
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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
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11 #define NGX_HTTP_SSI_MAX_PARAMS 16
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12
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13 #define NGX_HTTP_SSI_COMMAND_LEN 31
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14 #define NGX_HTTP_SSI_PARAM_LEN 31
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15 #define NGX_HTTP_SSI_PARAMS_N 4
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16
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17 #define NGX_HTTP_SSI_ERROR 1
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18
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58
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19 #define NGX_HTTP_SSI_DATE_LEN 2048
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20
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46
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21
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22 typedef struct {
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23 ngx_flag_t enable;
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24 ngx_flag_t silent_errors;
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58
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25 ngx_flag_t ignore_recycled_buffers;
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46
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26
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76
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27 ngx_array_t *types; /* array of ngx_str_t */
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28
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46
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29 size_t min_file_chunk;
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30 size_t value_len;
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31 } ngx_http_ssi_conf_t;
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32
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33
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34 typedef struct {
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35 ngx_buf_t *buf;
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36
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37 u_char *pos;
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38 u_char *copy_start;
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39 u_char *copy_end;
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40
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41 ngx_str_t command;
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42 ngx_array_t params;
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43 ngx_table_elt_t *param;
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44 ngx_table_elt_t params_array[NGX_HTTP_SSI_PARAMS_N];
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45
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46 ngx_chain_t *in;
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47 ngx_chain_t *out;
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48 ngx_chain_t **last_out;
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48
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49 ngx_chain_t *busy;
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50 ngx_chain_t *free;
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46
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51
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52 ngx_uint_t state;
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53 ngx_uint_t saved_state;
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54 size_t saved;
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55 size_t looked;
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56
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57 size_t value_len;
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58
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58
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59 ngx_uint_t output; /* unsigned output:1; */
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60
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61 ngx_str_t timefmt;
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96
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62 ngx_str_t errmsg;
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46
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63 } ngx_http_ssi_ctx_t;
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64
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65
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66 typedef ngx_int_t (*ngx_http_ssi_command_pt) (ngx_http_request_t *r,
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67 ngx_http_ssi_ctx_t *ctx, ngx_str_t **);
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68
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69
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70 typedef struct {
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71 ngx_str_t name;
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72 ngx_uint_t index;
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73
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74 ngx_uint_t mandatory;
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75 } ngx_http_ssi_param_t;
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76
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77
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78 typedef struct {
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79 ngx_str_t name;
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80 ngx_http_ssi_command_pt handler;
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81 ngx_http_ssi_param_t *params;
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82
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83 unsigned conditional:1;
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84 unsigned flush:1;
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85 } ngx_http_ssi_command_t;
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86
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87
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88 typedef enum {
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89 ssi_start_state = 0,
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90 ssi_tag_state,
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91 ssi_comment0_state,
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92 ssi_comment1_state,
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93 ssi_sharp_state,
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94 ssi_precommand_state,
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95 ssi_command_state,
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96 ssi_preparam_state,
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97 ssi_param_state,
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98 ssi_preequal_state,
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99 ssi_prevalue_state,
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100 ssi_double_quoted_value_state,
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101 ssi_quoted_value_state,
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102 ssi_quoted_symbol_state,
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103 ssi_postparam_state,
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104 ssi_comment_end0_state,
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105 ssi_comment_end1_state,
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106 ssi_error_state,
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107 ssi_error_end0_state,
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108 ssi_error_end1_state
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109 } ngx_http_ssi_state_e;
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110
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111
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58
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112 static ngx_int_t ngx_http_ssi_output(ngx_http_request_t *r,
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113 ngx_http_ssi_ctx_t *ctx);
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46
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114 static ngx_int_t ngx_http_ssi_parse(ngx_http_request_t *r,
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115 ngx_http_ssi_ctx_t *ctx);
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116
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117 static ngx_int_t ngx_http_ssi_echo(ngx_http_request_t *r,
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118 ngx_http_ssi_ctx_t *ctx, ngx_str_t **params);
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58
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119 static ngx_int_t ngx_http_ssi_config(ngx_http_request_t *r,
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120 ngx_http_ssi_ctx_t *ctx, ngx_str_t **params);
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121 static ngx_int_t ngx_http_ssi_include(ngx_http_request_t *r,
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122 ngx_http_ssi_ctx_t *ctx, ngx_str_t **params);
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123 static ngx_int_t ngx_http_ssi_if(ngx_http_request_t *r,
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124 ngx_http_ssi_ctx_t *ctx, ngx_str_t **params);
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125 static ngx_int_t ngx_http_ssi_else(ngx_http_request_t *r,
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126 ngx_http_ssi_ctx_t *ctx, ngx_str_t **params);
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127 static ngx_int_t ngx_http_ssi_endif(ngx_http_request_t *r,
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128 ngx_http_ssi_ctx_t *ctx, ngx_str_t **params);
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129
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130 static ngx_http_variable_value_t *
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131 ngx_http_ssi_date_gmt_local_variable(ngx_http_request_t *r, uintptr_t gmt);
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132
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76
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133 static char *ngx_http_ssi_types(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
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134
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135 static ngx_int_t ngx_http_ssi_add_variables(ngx_conf_t *cf);
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46
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136 static void *ngx_http_ssi_create_conf(ngx_conf_t *cf);
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137 static char *ngx_http_ssi_merge_conf(ngx_conf_t *cf,
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138 void *parent, void *child);
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139 static ngx_int_t ngx_http_ssi_filter_init(ngx_cycle_t *cycle);
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140
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141
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142 static ngx_command_t ngx_http_ssi_filter_commands[] = {
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143
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144 { ngx_string("ssi"),
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145 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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146 ngx_conf_set_flag_slot,
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147 NGX_HTTP_LOC_CONF_OFFSET,
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148 offsetof(ngx_http_ssi_conf_t, enable),
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149 NULL },
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150
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151 { ngx_string("ssi_silent_errors"),
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152 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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153 ngx_conf_set_flag_slot,
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154 NGX_HTTP_LOC_CONF_OFFSET,
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155 offsetof(ngx_http_ssi_conf_t, silent_errors),
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156 NULL },
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157
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58
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158 { ngx_string("ssi_ignore_recycled_buffers"),
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159 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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160 ngx_conf_set_flag_slot,
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161 NGX_HTTP_LOC_CONF_OFFSET,
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162 offsetof(ngx_http_ssi_conf_t, ignore_recycled_buffers),
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163 NULL },
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164
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165 { ngx_string("ssi_min_file_chunk"),
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166 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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167 ngx_conf_set_size_slot,
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168 NGX_HTTP_LOC_CONF_OFFSET,
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169 offsetof(ngx_http_ssi_conf_t, min_file_chunk),
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170 NULL },
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171
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76
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172 { ngx_string("ssi_types"),
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173 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
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174 ngx_http_ssi_types,
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175 NGX_HTTP_LOC_CONF_OFFSET,
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176 0,
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177 NULL },
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178
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46
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179 ngx_null_command
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180 };
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181
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182
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183
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184 static ngx_http_module_t ngx_http_ssi_filter_module_ctx = {
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185 ngx_http_ssi_add_variables, /* preconfiguration */
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186 NULL, /* postconfiguration */
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187
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188 NULL, /* create main configuration */
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189 NULL, /* init main configuration */
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190
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191 NULL, /* create server configuration */
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192 NULL, /* merge server configuration */
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193
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194 ngx_http_ssi_create_conf, /* create location configuration */
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195 ngx_http_ssi_merge_conf /* merge location configuration */
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196 };
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197
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198
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199 ngx_module_t ngx_http_ssi_filter_module = {
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58
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200 NGX_MODULE_V1,
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201 &ngx_http_ssi_filter_module_ctx, /* module context */
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202 ngx_http_ssi_filter_commands, /* module directives */
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203 NGX_HTTP_MODULE, /* module type */
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90
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204 NULL, /* init master */
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205 ngx_http_ssi_filter_init, /* init module */
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90
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206 NULL, /* init process */
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207 NULL, /* init thread */
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208 NULL, /* exit thread */
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209 NULL, /* exit process */
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210 NULL, /* exit master */
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211 NGX_MODULE_V1_PADDING
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46
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212 };
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213
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214
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215 static ngx_int_t (*ngx_http_next_header_filter) (ngx_http_request_t *r);
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216 static ngx_int_t (*ngx_http_next_body_filter) (ngx_http_request_t *r,
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217 ngx_chain_t *in);
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218
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219
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220 static u_char ngx_http_ssi_string[] = "<!--";
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221
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222 static ngx_str_t ngx_http_ssi_none = ngx_string("(none)");
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223
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224
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58
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225 #define NGX_HTTP_SSI_ECHO_VAR 0
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226 #define NGX_HTTP_SSI_ECHO_DEFAULT 1
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227
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96
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228 #define NGX_HTTP_SSI_CONFIG_ERRMSG 0
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229 #define NGX_HTTP_SSI_CONFIG_TIMEFMT 1
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58
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230
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231 #define NGX_HTTP_SSI_INCLUDE_VIRTUAL 0
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232 #define NGX_HTTP_SSI_INCLUDE_FILE 1
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233
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234 #define NGX_HTTP_SSI_IF_EXPR 0
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235
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236
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237 static ngx_http_ssi_param_t ngx_http_ssi_echo_params[] = {
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238 { ngx_string("var"), NGX_HTTP_SSI_ECHO_VAR, 1 },
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239 { ngx_string("default"), NGX_HTTP_SSI_ECHO_DEFAULT, 0 },
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240 { ngx_null_string, 0, 0 }
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241 };
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242
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58
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243 static ngx_http_ssi_param_t ngx_http_ssi_include_params[] = {
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244 { ngx_string("virtual"), NGX_HTTP_SSI_INCLUDE_VIRTUAL, 0 },
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245 #if 0
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246 { ngx_string("file"), NGX_HTTP_SSI_INCLUDE_FILE, 0 },
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247 #endif
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248 { ngx_null_string, 0, 0 }
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249 };
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250
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251
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252 static ngx_http_ssi_param_t ngx_http_ssi_config_params[] = {
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96
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253 { ngx_string("errmsg"), NGX_HTTP_SSI_CONFIG_ERRMSG, 0 },
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58
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254 { ngx_string("timefmt"), NGX_HTTP_SSI_CONFIG_TIMEFMT, 0 },
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255 { ngx_null_string, 0, 0 }
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256 };
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257
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258
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259 static ngx_http_ssi_param_t ngx_http_ssi_if_params[] = {
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260 { ngx_string("expr"), NGX_HTTP_SSI_IF_EXPR, 0 },
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261 { ngx_null_string, 0, 0 }
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262 };
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263
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264
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265 static ngx_http_ssi_param_t ngx_http_ssi_no_params[] = {
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266 { ngx_null_string, 0, 0 }
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267 };
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268
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269
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270 static ngx_http_ssi_command_t ngx_http_ssi_commands[] = {
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58
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271 { ngx_string("echo"), ngx_http_ssi_echo, ngx_http_ssi_echo_params, 0, 0 },
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272 { ngx_string("config"), ngx_http_ssi_config,
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273 ngx_http_ssi_config_params, 0, 0 },
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274 { ngx_string("include"), ngx_http_ssi_include,
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275 ngx_http_ssi_include_params, 0, 1 },
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276
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277 { ngx_string("if"), ngx_http_ssi_if, ngx_http_ssi_if_params, 0, 0 },
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278 { ngx_string("else"), ngx_http_ssi_else, ngx_http_ssi_no_params, 1, 0 },
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279 { ngx_string("endif"), ngx_http_ssi_endif, ngx_http_ssi_no_params, 1, 0 },
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280
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281 { ngx_null_string, NULL, NULL, 0, 0 }
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46
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282 };
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283
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284
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285 static ngx_http_variable_t ngx_http_ssi_vars[] = {
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286
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287 { ngx_string("date_local"), ngx_http_ssi_date_gmt_local_variable, 0,
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82
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288 NGX_HTTP_VAR_NOCACHABLE, 0 },
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289
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290 { ngx_string("date_gmt"), ngx_http_ssi_date_gmt_local_variable, 1,
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82
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291 NGX_HTTP_VAR_NOCACHABLE, 0 },
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58
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292
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82
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293 { ngx_null_string, NULL, 0, 0, 0 }
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58
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294 };
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295
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296
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297
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46
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298 static ngx_int_t
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299 ngx_http_ssi_header_filter(ngx_http_request_t *r)
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300 {
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301 ngx_uint_t i;
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302 ngx_str_t *type;
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46
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303 ngx_http_ssi_ctx_t *ctx;
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304 ngx_http_ssi_conf_t *conf;
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305
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306 conf = ngx_http_get_module_loc_conf(r, ngx_http_ssi_filter_module);
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307
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76
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308 if (!conf->enable
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309 || r->headers_out.content_type.len == 0)
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46
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310 {
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311 return ngx_http_next_header_filter(r);
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312 }
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313
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314
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76
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315 type = conf->types->elts;
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316 for (i = 0; i < conf->types->nelts; i++) {
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317 if (r->headers_out.content_type.len >= type[i].len
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318 && ngx_strncasecmp(r->headers_out.content_type.data,
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319 type[i].data, type[i].len) == 0)
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320 {
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321 goto found;
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322 }
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323 }
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324
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325 return ngx_http_next_header_filter(r);
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326
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327
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328 found:
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329
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48
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330 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_ssi_ctx_t));
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331 if (ctx == NULL) {
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46
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332 return NGX_ERROR;
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333 }
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334
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335 ngx_http_set_ctx(r, ctx, ngx_http_ssi_filter_module);
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336
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337
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338 ctx->value_len = conf->value_len;
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339 ctx->last_out = &ctx->out;
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340
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341 ctx->output = 1;
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342
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343 ctx->params.elts = ctx->params_array;
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344 ctx->params.size = sizeof(ngx_table_elt_t);
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345 ctx->params.nalloc = NGX_HTTP_SSI_PARAMS_N;
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346 ctx->params.pool = r->pool;
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347
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58
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348 ctx->timefmt.len = sizeof("%A, %d-%b-%Y %H:%M:%S %Z") - 1;
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349 ctx->timefmt.data = (u_char *) "%A, %d-%b-%Y %H:%M:%S %Z";
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46
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350
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96
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351 ctx->errmsg.len =
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352 sizeof("[an error occurred while processing the directive]") - 1;
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353 ctx->errmsg.data = (u_char *)
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354 "[an error occurred while processing the directive]";
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355
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356 r->filter_need_in_memory = 1;
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357
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58
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358 if (r->main == NULL) {
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359 r->headers_out.content_length_n = -1;
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360 if (r->headers_out.content_length) {
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361 r->headers_out.content_length->hash = 0;
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362 r->headers_out.content_length = NULL;
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363 }
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364
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365 r->headers_out.last_modified_time = -1;
|
|
|
366 if (r->headers_out.last_modified) {
|
|
|
367 r->headers_out.last_modified->hash = 0;
|
|
|
368 r->headers_out.last_modified = NULL;
|
|
|
369 }
|
|
|
370 }
|
|
|
371
|
|
46
|
372 return ngx_http_next_header_filter(r);
|
|
|
373 }
|
|
|
374
|
|
|
375
|
|
|
376 static ngx_int_t
|
|
|
377 ngx_http_ssi_body_filter(ngx_http_request_t *r, ngx_chain_t *in)
|
|
|
378 {
|
|
|
379 ngx_int_t rc;
|
|
|
380 ngx_uint_t i;
|
|
|
381 ngx_buf_t *b;
|
|
|
382 ngx_chain_t *cl;
|
|
|
383 ngx_table_elt_t *param;
|
|
|
384 ngx_http_ssi_ctx_t *ctx;
|
|
|
385 ngx_http_ssi_conf_t *conf;
|
|
|
386 ngx_http_ssi_param_t *prm;
|
|
|
387 ngx_http_ssi_command_t *cmd;
|
|
|
388 ngx_str_t *params[NGX_HTTP_SSI_MAX_PARAMS];
|
|
|
389
|
|
|
390 ctx = ngx_http_get_module_ctx(r, ngx_http_ssi_filter_module);
|
|
|
391
|
|
48
|
392 if (ctx == NULL || (in == NULL && ctx->in == NULL && ctx->busy == NULL)) {
|
|
46
|
393 return ngx_http_next_body_filter(r, in);
|
|
|
394 }
|
|
|
395
|
|
|
396 /* add the incoming chain to the chain ctx->in */
|
|
|
397
|
|
|
398 if (in) {
|
|
|
399 if (ngx_chain_add_copy(r->pool, &ctx->in, in) == NGX_ERROR) {
|
|
|
400 return NGX_ERROR;
|
|
|
401 }
|
|
|
402 }
|
|
|
403
|
|
|
404 conf = ngx_http_get_module_loc_conf(r, ngx_http_ssi_filter_module);
|
|
|
405
|
|
58
|
406 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
407 "http ssi filter \"%V\"", &r->uri);
|
|
46
|
408
|
|
48
|
409 while (ctx->in || ctx->buf) {
|
|
46
|
410
|
|
48
|
411 if (ctx->buf == NULL ){
|
|
|
412 ctx->buf = ctx->in->buf;
|
|
|
413 ctx->in = ctx->in->next;
|
|
|
414 ctx->pos = ctx->buf->pos;
|
|
|
415 }
|
|
46
|
416
|
|
|
417 if (ctx->state == ssi_start_state) {
|
|
|
418 ctx->copy_start = ctx->pos;
|
|
|
419 ctx->copy_end = ctx->pos;
|
|
|
420 }
|
|
|
421
|
|
48
|
422 b = NULL;
|
|
|
423
|
|
46
|
424 while (ctx->pos < ctx->buf->last) {
|
|
|
425
|
|
|
426 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
427 "saved: %d state: %d", ctx->saved, ctx->state);
|
|
|
428
|
|
|
429 rc = ngx_http_ssi_parse(r, ctx);
|
|
|
430
|
|
|
431 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
432 "parse: %d, looked: %d %p-%p",
|
|
|
433 rc, ctx->looked, ctx->copy_start, ctx->copy_end);
|
|
|
434
|
|
|
435 if (rc == NGX_ERROR) {
|
|
|
436 return rc;
|
|
|
437 }
|
|
|
438
|
|
|
439 if (ctx->copy_start != ctx->copy_end) {
|
|
|
440
|
|
58
|
441 if (ctx->output) {
|
|
|
442
|
|
|
443 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
444 "saved: %d", ctx->saved);
|
|
|
445
|
|
|
446 if (ctx->saved) {
|
|
|
447
|
|
|
448 if (ctx->free) {
|
|
|
449 cl = ctx->free;
|
|
|
450 ctx->free = ctx->free->next;
|
|
|
451 b = cl->buf;
|
|
|
452 ngx_memzero(b, sizeof(ngx_buf_t));
|
|
46
|
453
|
|
58
|
454 } else {
|
|
|
455 b = ngx_calloc_buf(r->pool);
|
|
|
456 if (b == NULL) {
|
|
|
457 return NGX_ERROR;
|
|
|
458 }
|
|
|
459
|
|
|
460 cl = ngx_alloc_chain_link(r->pool);
|
|
|
461 if (cl == NULL) {
|
|
|
462 return NGX_ERROR;
|
|
|
463 }
|
|
|
464
|
|
|
465 cl->buf = b;
|
|
|
466 }
|
|
|
467
|
|
|
468 b->memory = 1;
|
|
|
469 b->pos = ngx_http_ssi_string;
|
|
|
470 b->last = ngx_http_ssi_string + ctx->saved;
|
|
|
471
|
|
|
472 *ctx->last_out = cl;
|
|
|
473 ctx->last_out = &cl->next;
|
|
|
474
|
|
|
475 ctx->saved = 0;
|
|
|
476 }
|
|
48
|
477
|
|
|
478 if (ctx->free) {
|
|
|
479 cl = ctx->free;
|
|
|
480 ctx->free = ctx->free->next;
|
|
|
481 b = cl->buf;
|
|
|
482
|
|
|
483 } else {
|
|
58
|
484 b = ngx_alloc_buf(r->pool);
|
|
48
|
485 if (b == NULL) {
|
|
|
486 return NGX_ERROR;
|
|
|
487 }
|
|
|
488
|
|
|
489 cl = ngx_alloc_chain_link(r->pool);
|
|
|
490 if (cl == NULL) {
|
|
|
491 return NGX_ERROR;
|
|
|
492 }
|
|
|
493
|
|
|
494 cl->buf = b;
|
|
46
|
495 }
|
|
|
496
|
|
58
|
497 ngx_memcpy(b, ctx->buf, sizeof(ngx_buf_t));
|
|
|
498
|
|
62
|
499 b->pos = ctx->copy_start;
|
|
|
500 b->last = ctx->copy_end;
|
|
|
501 b->shadow = NULL;
|
|
58
|
502 b->last_buf = 0;
|
|
|
503 b->recycled = 0;
|
|
46
|
504
|
|
58
|
505 if (b->in_file) {
|
|
|
506 if (conf->min_file_chunk < (size_t) (b->last - b->pos))
|
|
|
507 {
|
|
|
508 b->file_last = b->file_pos + (b->last - b->start);
|
|
|
509 b->file_pos += b->pos - b->start;
|
|
|
510
|
|
|
511 } else {
|
|
|
512 b->in_file = 0;
|
|
|
513 }
|
|
|
514 }
|
|
|
515
|
|
|
516 cl->next = NULL;
|
|
46
|
517 *ctx->last_out = cl;
|
|
|
518 ctx->last_out = &cl->next;
|
|
|
519
|
|
58
|
520 } else {
|
|
46
|
521 ctx->saved = 0;
|
|
|
522 }
|
|
|
523 }
|
|
|
524
|
|
|
525 if (ctx->state == ssi_start_state) {
|
|
|
526 ctx->copy_start = ctx->pos;
|
|
|
527 ctx->copy_end = ctx->pos;
|
|
|
528
|
|
|
529 } else {
|
|
|
530 ctx->copy_start = NULL;
|
|
|
531 ctx->copy_end = NULL;
|
|
|
532 }
|
|
|
533
|
|
|
534 if (rc == NGX_AGAIN) {
|
|
|
535 continue;
|
|
|
536 }
|
|
|
537
|
|
|
538
|
|
|
539 if (rc == NGX_OK) {
|
|
|
540
|
|
|
541 for (cmd = ngx_http_ssi_commands; cmd->handler; cmd++) {
|
|
|
542 if (cmd->name.len == 0) {
|
|
|
543 cmd = (ngx_http_ssi_command_t *) cmd->handler;
|
|
|
544 }
|
|
|
545
|
|
|
546 if (cmd->name.len != ctx->command.len
|
|
|
547 || ngx_strncmp(cmd->name.data, ctx->command.data,
|
|
|
548 ctx->command.len) != 0)
|
|
|
549 {
|
|
|
550 continue;
|
|
|
551 }
|
|
|
552
|
|
|
553 break;
|
|
|
554 }
|
|
|
555
|
|
58
|
556 if (cmd->name.len == 0 && ctx->output) {
|
|
46
|
557 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
558 "invalid SSI command: \"%V\"", &ctx->command);
|
|
|
559 goto ssi_error;
|
|
|
560 }
|
|
|
561
|
|
58
|
562 if (!ctx->output && !cmd->conditional) {
|
|
|
563 continue;
|
|
|
564 }
|
|
|
565
|
|
46
|
566 ngx_memzero(params,
|
|
|
567 NGX_HTTP_SSI_MAX_PARAMS * sizeof(ngx_str_t *));
|
|
|
568
|
|
|
569 param = ctx->params.elts;
|
|
|
570
|
|
|
571
|
|
|
572 for (i = 0; i < ctx->params.nelts; i++) {
|
|
|
573
|
|
|
574 for (prm = cmd->params; prm->name.len; prm++) {
|
|
|
575
|
|
|
576 if (param[i].key.len != prm->name.len
|
|
|
577 || ngx_strncmp(param[i].key.data, prm->name.data,
|
|
|
578 prm->name.len) != 0)
|
|
|
579 {
|
|
|
580 continue;
|
|
|
581 }
|
|
|
582
|
|
|
583 if (params[prm->index]) {
|
|
|
584 ngx_log_error(NGX_LOG_ERR,
|
|
|
585 r->connection->log, 0,
|
|
|
586 "duplicate \"%V\" parameter "
|
|
|
587 "in \"%V\" SSI command",
|
|
|
588 ¶m[i].key, &ctx->command);
|
|
|
589
|
|
|
590 goto ssi_error;
|
|
|
591 }
|
|
|
592
|
|
|
593 params[prm->index] = ¶m[i].value;
|
|
|
594
|
|
|
595 break;
|
|
|
596 }
|
|
|
597
|
|
|
598 if (prm->name.len == 0) {
|
|
|
599 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
600 "invalid parameter name: \"%V\" "
|
|
|
601 "in \"%V\" SSI command",
|
|
|
602 ¶m[i].key, &ctx->command);
|
|
|
603
|
|
|
604 goto ssi_error;
|
|
|
605 }
|
|
|
606 }
|
|
|
607
|
|
|
608 for (prm = cmd->params; prm->name.len; prm++) {
|
|
|
609 if (prm->mandatory && params[prm->index] == 0) {
|
|
|
610 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
611 "mandatory \"%V\" parameter is absent "
|
|
|
612 "in \"%V\" SSI command",
|
|
|
613 &prm->name, &ctx->command);
|
|
|
614
|
|
|
615 goto ssi_error;
|
|
|
616 }
|
|
|
617 }
|
|
|
618
|
|
58
|
619 if (cmd->flush && ctx->out) {
|
|
|
620 rc = ngx_http_ssi_output(r, ctx);
|
|
|
621
|
|
|
622 if (rc == NGX_ERROR) {
|
|
|
623 return NGX_ERROR;
|
|
|
624 }
|
|
|
625 }
|
|
|
626
|
|
46
|
627 if (cmd->handler(r, ctx, params) == NGX_OK) {
|
|
|
628 continue;
|
|
|
629 }
|
|
|
630 }
|
|
|
631
|
|
|
632
|
|
|
633 /* rc == NGX_HTTP_SSI_ERROR */
|
|
|
634
|
|
48
|
635 ssi_error:
|
|
46
|
636
|
|
|
637 if (conf->silent_errors) {
|
|
|
638 continue;
|
|
|
639 }
|
|
|
640
|
|
48
|
641 if (ctx->free) {
|
|
|
642 cl = ctx->free;
|
|
|
643 ctx->free = ctx->free->next;
|
|
|
644 b = cl->buf;
|
|
|
645 ngx_memzero(b, sizeof(ngx_buf_t));
|
|
|
646
|
|
|
647 } else {
|
|
|
648 b = ngx_calloc_buf(r->pool);
|
|
|
649 if (b == NULL) {
|
|
|
650 return NGX_ERROR;
|
|
|
651 }
|
|
|
652
|
|
|
653 cl = ngx_alloc_chain_link(r->pool);
|
|
|
654 if (cl == NULL) {
|
|
|
655 return NGX_ERROR;
|
|
|
656 }
|
|
|
657
|
|
|
658 cl->buf = b;
|
|
46
|
659 }
|
|
|
660
|
|
|
661 b->memory = 1;
|
|
96
|
662 b->pos = ctx->errmsg.data;
|
|
|
663 b->last = ctx->errmsg.data + ctx->errmsg.len;
|
|
46
|
664
|
|
|
665 cl->next = NULL;
|
|
|
666 *ctx->last_out = cl;
|
|
|
667 ctx->last_out = &cl->next;
|
|
|
668
|
|
|
669 continue;
|
|
|
670 }
|
|
|
671
|
|
58
|
672 if (ctx->buf->last_buf || ctx->buf->recycled) {
|
|
|
673
|
|
48
|
674 if (b == NULL) {
|
|
|
675 if (ctx->free) {
|
|
|
676 cl = ctx->free;
|
|
|
677 ctx->free = ctx->free->next;
|
|
|
678 b = cl->buf;
|
|
|
679 ngx_memzero(b, sizeof(ngx_buf_t));
|
|
|
680
|
|
|
681 } else {
|
|
|
682 b = ngx_calloc_buf(r->pool);
|
|
|
683 if (b == NULL) {
|
|
|
684 return NGX_ERROR;
|
|
|
685 }
|
|
46
|
686
|
|
48
|
687 cl = ngx_alloc_chain_link(r->pool);
|
|
|
688 if (cl == NULL) {
|
|
|
689 return NGX_ERROR;
|
|
|
690 }
|
|
|
691
|
|
|
692 cl->buf = b;
|
|
|
693 }
|
|
|
694
|
|
58
|
695 b->sync = 1;
|
|
|
696
|
|
48
|
697 cl->next = NULL;
|
|
|
698 *ctx->last_out = cl;
|
|
|
699 ctx->last_out = &cl->next;
|
|
|
700 }
|
|
|
701
|
|
|
702 b->last_buf = ctx->buf->last_buf;
|
|
|
703 b->shadow = ctx->buf;
|
|
58
|
704
|
|
|
705 if (conf->ignore_recycled_buffers == 0) {
|
|
|
706 b->recycled = ctx->buf->recycled;
|
|
|
707 }
|
|
46
|
708 }
|
|
|
709
|
|
48
|
710 ctx->buf = NULL;
|
|
|
711
|
|
46
|
712 ctx->saved = ctx->looked;
|
|
|
713 }
|
|
|
714
|
|
48
|
715 if (ctx->out == NULL && ctx->busy == NULL) {
|
|
46
|
716 return NGX_OK;
|
|
|
717 }
|
|
|
718
|
|
58
|
719 return ngx_http_ssi_output(r, ctx);
|
|
|
720 }
|
|
|
721
|
|
|
722
|
|
|
723 static ngx_int_t
|
|
|
724 ngx_http_ssi_output(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx)
|
|
|
725 {
|
|
|
726 ngx_int_t rc;
|
|
|
727 ngx_buf_t *b;
|
|
|
728 ngx_chain_t *cl;
|
|
|
729
|
|
46
|
730 rc = ngx_http_next_body_filter(r, ctx->out);
|
|
|
731
|
|
48
|
732 if (ctx->busy == NULL) {
|
|
|
733 ctx->busy = ctx->out;
|
|
|
734
|
|
|
735 } else {
|
|
|
736 for (cl = ctx->busy; cl->next; cl = cl->next) { /* void */ }
|
|
|
737 cl->next = ctx->out;
|
|
|
738 }
|
|
|
739
|
|
46
|
740 ctx->out = NULL;
|
|
|
741 ctx->last_out = &ctx->out;
|
|
|
742
|
|
48
|
743 while (ctx->busy) {
|
|
|
744
|
|
|
745 b = ctx->busy->buf;
|
|
|
746
|
|
|
747 if (ngx_buf_size(b) != 0) {
|
|
|
748 break;
|
|
|
749 }
|
|
|
750
|
|
|
751 #if (NGX_HAVE_WRITE_ZEROCOPY)
|
|
|
752 if (b->zerocopy_busy) {
|
|
|
753 break;
|
|
|
754 }
|
|
|
755 #endif
|
|
|
756
|
|
|
757 if (b->shadow) {
|
|
|
758 b->shadow->pos = b->shadow->last;
|
|
|
759 }
|
|
|
760
|
|
|
761 cl = ctx->busy;
|
|
|
762 ctx->busy = cl->next;
|
|
|
763 cl->next = ctx->free;
|
|
|
764 ctx->free = cl;
|
|
|
765 }
|
|
|
766
|
|
46
|
767 return rc;
|
|
|
768 }
|
|
|
769
|
|
|
770
|
|
|
771 static ngx_int_t
|
|
|
772 ngx_http_ssi_parse(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx)
|
|
|
773 {
|
|
|
774 u_char *p, *last, *copy_end, ch;
|
|
|
775 size_t looked;
|
|
|
776 ngx_http_ssi_state_e state;
|
|
|
777
|
|
|
778 state = ctx->state;
|
|
|
779 looked = ctx->looked;
|
|
|
780 last = ctx->buf->last;
|
|
|
781 copy_end = ctx->copy_end;
|
|
|
782
|
|
|
783 for (p = ctx->pos; p < last; p++) {
|
|
|
784
|
|
|
785 ch = *p;
|
|
|
786
|
|
|
787 if (state == ssi_start_state) {
|
|
|
788
|
|
|
789 /* the tight loop */
|
|
|
790
|
|
48
|
791 for ( ;; ) {
|
|
|
792 if (ch == '<') {
|
|
|
793 copy_end = p;
|
|
|
794 looked = 1;
|
|
|
795 state = ssi_tag_state;
|
|
|
796
|
|
|
797 goto tag_started;
|
|
46
|
798 }
|
|
|
799
|
|
48
|
800 if (++p == last) {
|
|
|
801 break;
|
|
|
802 }
|
|
46
|
803
|
|
48
|
804 ch = *p;
|
|
46
|
805 }
|
|
|
806
|
|
|
807 ctx->pos = p;
|
|
|
808 ctx->looked = looked;
|
|
|
809 ctx->copy_end = p;
|
|
|
810
|
|
|
811 if (ctx->copy_start == NULL) {
|
|
|
812 ctx->copy_start = ctx->buf->pos;
|
|
|
813 }
|
|
|
814
|
|
|
815 return NGX_AGAIN;
|
|
|
816
|
|
48
|
817 tag_started:
|
|
|
818
|
|
46
|
819 continue;
|
|
|
820 }
|
|
|
821
|
|
|
822 switch (state) {
|
|
|
823
|
|
|
824 case ssi_start_state:
|
|
|
825 break;
|
|
|
826
|
|
|
827 case ssi_tag_state:
|
|
|
828 switch (ch) {
|
|
|
829 case '!':
|
|
|
830 looked = 2;
|
|
|
831 state = ssi_comment0_state;
|
|
|
832 break;
|
|
|
833
|
|
|
834 case '<':
|
|
|
835 copy_end = p;
|
|
|
836 break;
|
|
|
837
|
|
|
838 default:
|
|
|
839 copy_end = p;
|
|
|
840 looked = 0;
|
|
|
841 state = ssi_start_state;
|
|
|
842 break;
|
|
|
843 }
|
|
|
844
|
|
|
845 break;
|
|
|
846
|
|
|
847 case ssi_comment0_state:
|
|
|
848 switch (ch) {
|
|
|
849 case '-':
|
|
|
850 looked = 3;
|
|
|
851 state = ssi_comment1_state;
|
|
|
852 break;
|
|
|
853
|
|
|
854 case '<':
|
|
|
855 copy_end = p;
|
|
|
856 looked = 1;
|
|
|
857 state = ssi_tag_state;
|
|
|
858 break;
|
|
|
859
|
|
|
860 default:
|
|
|
861 copy_end = p;
|
|
|
862 looked = 0;
|
|
|
863 state = ssi_start_state;
|
|
|
864 break;
|
|
|
865 }
|
|
|
866
|
|
|
867 break;
|
|
|
868
|
|
|
869 case ssi_comment1_state:
|
|
|
870 switch (ch) {
|
|
|
871 case '-':
|
|
|
872 looked = 4;
|
|
|
873 state = ssi_sharp_state;
|
|
|
874 break;
|
|
|
875
|
|
|
876 case '<':
|
|
|
877 copy_end = p;
|
|
|
878 looked = 1;
|
|
|
879 state = ssi_tag_state;
|
|
|
880 break;
|
|
|
881
|
|
|
882 default:
|
|
|
883 copy_end = p;
|
|
|
884 looked = 0;
|
|
|
885 state = ssi_start_state;
|
|
|
886 break;
|
|
|
887 }
|
|
|
888
|
|
|
889 break;
|
|
|
890
|
|
|
891 case ssi_sharp_state:
|
|
|
892 switch (ch) {
|
|
|
893 case '#':
|
|
|
894 if (ctx->copy_start) {
|
|
|
895 ctx->saved = 0;
|
|
|
896 }
|
|
|
897 looked = 0;
|
|
|
898 state = ssi_precommand_state;
|
|
|
899 break;
|
|
|
900
|
|
|
901 case '<':
|
|
|
902 copy_end = p;
|
|
|
903 looked = 1;
|
|
|
904 state = ssi_tag_state;
|
|
|
905 break;
|
|
|
906
|
|
|
907 default:
|
|
|
908 copy_end = p;
|
|
|
909 looked = 0;
|
|
|
910 state = ssi_start_state;
|
|
|
911 break;
|
|
|
912 }
|
|
|
913
|
|
|
914 break;
|
|
|
915
|
|
|
916 case ssi_precommand_state:
|
|
|
917 switch (ch) {
|
|
|
918 case ' ':
|
|
|
919 case CR:
|
|
|
920 case LF:
|
|
|
921 case '\t':
|
|
|
922 break;
|
|
|
923
|
|
|
924 default:
|
|
|
925 ctx->command.len = 1;
|
|
|
926 ctx->command.data = ngx_palloc(r->pool,
|
|
|
927 NGX_HTTP_SSI_COMMAND_LEN + 1);
|
|
|
928 if (ctx->command.data == NULL) {
|
|
|
929 return NGX_ERROR;
|
|
|
930 }
|
|
|
931
|
|
|
932 ctx->command.data[0] = ch;
|
|
|
933 ctx->params.nelts = 0;
|
|
|
934 state = ssi_command_state;
|
|
|
935 break;
|
|
|
936 }
|
|
|
937
|
|
|
938 break;
|
|
|
939
|
|
|
940 case ssi_command_state:
|
|
|
941 switch (ch) {
|
|
|
942 case ' ':
|
|
|
943 case CR:
|
|
|
944 case LF:
|
|
|
945 case '\t':
|
|
|
946 state = ssi_preparam_state;
|
|
|
947 break;
|
|
|
948
|
|
|
949 case '-':
|
|
|
950 state = ssi_comment_end0_state;
|
|
|
951 break;
|
|
|
952
|
|
|
953 default:
|
|
|
954 ctx->command.data[ctx->command.len++] = ch;
|
|
|
955
|
|
|
956 if (ctx->command.len == NGX_HTTP_SSI_COMMAND_LEN) {
|
|
|
957 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
958 "the \"%V\" SSI command is too long",
|
|
|
959 &ctx->command);
|
|
|
960
|
|
|
961 state = ssi_error_state;
|
|
|
962 break;
|
|
|
963 }
|
|
|
964 }
|
|
|
965
|
|
|
966 break;
|
|
|
967
|
|
|
968 case ssi_preparam_state:
|
|
|
969 switch (ch) {
|
|
|
970 case ' ':
|
|
|
971 case CR:
|
|
|
972 case LF:
|
|
|
973 case '\t':
|
|
|
974 break;
|
|
|
975
|
|
|
976 case '-':
|
|
|
977 state = ssi_comment_end0_state;
|
|
|
978 break;
|
|
|
979
|
|
|
980 default:
|
|
48
|
981 ctx->param = ngx_array_push(&ctx->params);
|
|
|
982 if (ctx->param == NULL) {
|
|
46
|
983 return NGX_ERROR;
|
|
|
984 }
|
|
|
985
|
|
|
986 ctx->param->key.len = 1;
|
|
|
987 ctx->param->key.data = ngx_palloc(r->pool,
|
|
|
988 NGX_HTTP_SSI_PARAM_LEN + 1);
|
|
|
989 if (ctx->param->key.data == NULL) {
|
|
|
990 return NGX_ERROR;
|
|
|
991 }
|
|
|
992
|
|
|
993 ctx->param->key.data[0] = ch;
|
|
|
994
|
|
|
995 ctx->param->value.len = 0;
|
|
|
996 ctx->param->value.data = ngx_palloc(r->pool,
|
|
|
997 ctx->value_len + 1);
|
|
|
998 if (ctx->param->value.data == NULL) {
|
|
|
999 return NGX_ERROR;
|
|
|
1000 }
|
|
|
1001
|
|
|
1002 state = ssi_param_state;
|
|
|
1003 break;
|
|
|
1004 }
|
|
|
1005
|
|
|
1006 break;
|
|
|
1007
|
|
|
1008 case ssi_param_state:
|
|
|
1009 switch (ch) {
|
|
|
1010 case ' ':
|
|
|
1011 case CR:
|
|
|
1012 case LF:
|
|
|
1013 case '\t':
|
|
|
1014 state = ssi_preequal_state;
|
|
|
1015 break;
|
|
|
1016
|
|
|
1017 case '=':
|
|
|
1018 state = ssi_prevalue_state;
|
|
|
1019 break;
|
|
|
1020
|
|
|
1021 case '-':
|
|
|
1022 state = ssi_error_end0_state;
|
|
|
1023
|
|
|
1024 ctx->param->key.data[ctx->param->key.len++] = ch;
|
|
|
1025 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1026 "invalid \"%V\" parameter in \"%V\" SSI command",
|
|
|
1027 &ctx->param->key, &ctx->command);
|
|
|
1028 break;
|
|
|
1029
|
|
|
1030 default:
|
|
|
1031 ctx->param->key.data[ctx->param->key.len++] = ch;
|
|
|
1032
|
|
|
1033 if (ctx->param->key.len == NGX_HTTP_SSI_PARAM_LEN) {
|
|
|
1034 state = ssi_error_state;
|
|
|
1035 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1036 "too long \"%V\" parameter in "
|
|
|
1037 "\"%V\" SSI command",
|
|
|
1038 &ctx->param->key, &ctx->command);
|
|
|
1039 break;
|
|
|
1040 }
|
|
|
1041 }
|
|
|
1042
|
|
|
1043 break;
|
|
|
1044
|
|
|
1045 case ssi_preequal_state:
|
|
|
1046 switch (ch) {
|
|
|
1047 case ' ':
|
|
|
1048 case CR:
|
|
|
1049 case LF:
|
|
|
1050 case '\t':
|
|
|
1051 break;
|
|
|
1052
|
|
|
1053 case '=':
|
|
|
1054 state = ssi_prevalue_state;
|
|
|
1055 break;
|
|
|
1056
|
|
|
1057 default:
|
|
|
1058 if (ch == '-') {
|
|
|
1059 state = ssi_error_end0_state;
|
|
|
1060 } else {
|
|
|
1061 state = ssi_error_state;
|
|
|
1062 }
|
|
|
1063
|
|
|
1064 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1065 "unexpected \"%c\" symbol after \"%V\" "
|
|
|
1066 "parameter in \"%V\" SSI command",
|
|
|
1067 ch, &ctx->param->key, &ctx->command);
|
|
|
1068 break;
|
|
|
1069 }
|
|
|
1070
|
|
|
1071 break;
|
|
|
1072
|
|
|
1073 case ssi_prevalue_state:
|
|
|
1074 switch (ch) {
|
|
|
1075 case ' ':
|
|
|
1076 case CR:
|
|
|
1077 case LF:
|
|
|
1078 case '\t':
|
|
|
1079 break;
|
|
|
1080
|
|
|
1081 case '"':
|
|
|
1082 state = ssi_double_quoted_value_state;
|
|
|
1083 break;
|
|
|
1084
|
|
|
1085 case '\'':
|
|
|
1086 state = ssi_quoted_value_state;
|
|
|
1087 break;
|
|
|
1088
|
|
|
1089 default:
|
|
|
1090 if (ch == '-') {
|
|
|
1091 state = ssi_error_end0_state;
|
|
|
1092 } else {
|
|
|
1093 state = ssi_error_state;
|
|
|
1094 }
|
|
|
1095
|
|
|
1096 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1097 "unexpected \"%c\" symbol before value of "
|
|
|
1098 "\"%V\" parameter in \"%V\" SSI command",
|
|
|
1099 ch, &ctx->param->key, &ctx->command);
|
|
|
1100 break;
|
|
|
1101 }
|
|
|
1102
|
|
|
1103 break;
|
|
|
1104
|
|
|
1105 case ssi_double_quoted_value_state:
|
|
|
1106 switch (ch) {
|
|
|
1107 case '\\':
|
|
|
1108 ctx->saved_state = ssi_double_quoted_value_state;
|
|
|
1109 state = ssi_quoted_symbol_state;
|
|
|
1110 break;
|
|
|
1111
|
|
|
1112 case '"':
|
|
|
1113 state = ssi_postparam_state;
|
|
|
1114 break;
|
|
|
1115
|
|
|
1116 default:
|
|
|
1117 ctx->param->value.data[ctx->param->value.len++] = ch;
|
|
|
1118
|
|
|
1119 if (ctx->param->value.len == ctx->value_len) {
|
|
|
1120 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1121 "too long \"%V\" value of \"%V\" parameter "
|
|
|
1122 "in \"%V\" SSI command",
|
|
|
1123 &ctx->param->value, &ctx->param->key,
|
|
|
1124 &ctx->command);
|
|
|
1125 state = ssi_error_state;
|
|
|
1126 break;
|
|
|
1127 }
|
|
|
1128 }
|
|
|
1129
|
|
|
1130 break;
|
|
|
1131
|
|
|
1132 case ssi_quoted_value_state:
|
|
|
1133 switch (ch) {
|
|
|
1134 case '\\':
|
|
|
1135 ctx->saved_state = ssi_quoted_value_state;
|
|
|
1136 state = ssi_quoted_symbol_state;
|
|
|
1137 break;
|
|
|
1138
|
|
|
1139 case '\'':
|
|
|
1140 state = ssi_postparam_state;
|
|
|
1141 break;
|
|
|
1142
|
|
|
1143 default:
|
|
|
1144 ctx->param->value.data[ctx->param->value.len++] = ch;
|
|
|
1145
|
|
|
1146 if (ctx->param->value.len == ctx->value_len) {
|
|
|
1147 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1148 "too long \"%V\" value of \"%V\" parameter "
|
|
|
1149 "in \"%V\" SSI command",
|
|
|
1150 &ctx->param->value, &ctx->param->key,
|
|
|
1151 &ctx->command);
|
|
|
1152 state = ssi_error_state;
|
|
|
1153 break;
|
|
|
1154 }
|
|
|
1155 }
|
|
|
1156
|
|
|
1157 break;
|
|
|
1158
|
|
|
1159 case ssi_quoted_symbol_state:
|
|
|
1160 ctx->param->value.data[ctx->param->value.len++] = ch;
|
|
|
1161
|
|
|
1162 if (ctx->param->value.len == ctx->value_len) {
|
|
|
1163 if (ctx->param->value.len == ctx->value_len) {
|
|
|
1164 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1165 "too long \"%V\" value of \"%V\" parameter "
|
|
|
1166 "in \"%V\" SSI command",
|
|
|
1167 &ctx->param->value, &ctx->param->key,
|
|
|
1168 &ctx->command);
|
|
|
1169 state = ssi_error_state;
|
|
|
1170 break;
|
|
|
1171 }
|
|
|
1172 }
|
|
|
1173
|
|
|
1174 state = ctx->saved_state;
|
|
|
1175 break;
|
|
|
1176
|
|
|
1177 case ssi_postparam_state:
|
|
|
1178 switch (ch) {
|
|
|
1179 case ' ':
|
|
|
1180 case CR:
|
|
|
1181 case LF:
|
|
|
1182 case '\t':
|
|
|
1183 state = ssi_preparam_state;
|
|
|
1184 break;
|
|
|
1185
|
|
|
1186 case '-':
|
|
|
1187 state = ssi_comment_end0_state;
|
|
|
1188 break;
|
|
|
1189
|
|
|
1190 default:
|
|
|
1191 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1192 "unexpected \"%c\" symbol after \"%V\" value "
|
|
|
1193 "of \"%V\" parameter in \"%V\" SSI command",
|
|
|
1194 ch, &ctx->param->value, &ctx->param->key,
|
|
|
1195 &ctx->command);
|
|
|
1196 state = ssi_error_state;
|
|
|
1197 break;
|
|
|
1198 }
|
|
|
1199
|
|
|
1200 break;
|
|
|
1201
|
|
|
1202 case ssi_comment_end0_state:
|
|
|
1203 switch (ch) {
|
|
|
1204 case '-':
|
|
|
1205 state = ssi_comment_end1_state;
|
|
|
1206 break;
|
|
|
1207
|
|
|
1208 default:
|
|
|
1209 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1210 "unexpected \"%c\" symbol in \"%V\" SSI command",
|
|
|
1211 ch, &ctx->command);
|
|
|
1212 state = ssi_error_state;
|
|
|
1213 break;
|
|
|
1214 }
|
|
|
1215
|
|
|
1216 break;
|
|
|
1217
|
|
|
1218 case ssi_comment_end1_state:
|
|
|
1219 switch (ch) {
|
|
|
1220 case '>':
|
|
|
1221 ctx->state = ssi_start_state;
|
|
|
1222 ctx->pos = p + 1;
|
|
|
1223 ctx->looked = looked;
|
|
|
1224 ctx->copy_end = copy_end;
|
|
|
1225
|
|
|
1226 if (ctx->copy_start == NULL && copy_end) {
|
|
|
1227 ctx->copy_start = ctx->buf->pos;
|
|
|
1228 }
|
|
|
1229
|
|
|
1230 return NGX_OK;
|
|
|
1231
|
|
|
1232 default:
|
|
|
1233 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1234 "unexpected \"%c\" symbol in \"%V\" SSI command",
|
|
|
1235 ch, &ctx->command);
|
|
|
1236 state = ssi_error_state;
|
|
|
1237 break;
|
|
|
1238 }
|
|
|
1239
|
|
|
1240 break;
|
|
|
1241
|
|
|
1242 case ssi_error_state:
|
|
|
1243 switch (ch) {
|
|
|
1244 case '-':
|
|
|
1245 state = ssi_error_end0_state;
|
|
|
1246 break;
|
|
|
1247
|
|
|
1248 default:
|
|
|
1249 break;
|
|
|
1250 }
|
|
|
1251
|
|
|
1252 break;
|
|
|
1253
|
|
|
1254 case ssi_error_end0_state:
|
|
|
1255 switch (ch) {
|
|
|
1256 case '-':
|
|
|
1257 state = ssi_error_end1_state;
|
|
|
1258 break;
|
|
|
1259
|
|
|
1260 default:
|
|
|
1261 state = ssi_error_state;
|
|
|
1262 break;
|
|
|
1263 }
|
|
|
1264
|
|
|
1265 break;
|
|
|
1266
|
|
|
1267 case ssi_error_end1_state:
|
|
|
1268 switch (ch) {
|
|
|
1269 case '>':
|
|
|
1270 ctx->state = ssi_start_state;
|
|
|
1271 ctx->pos = p + 1;
|
|
|
1272 ctx->looked = looked;
|
|
|
1273 ctx->copy_end = copy_end;
|
|
|
1274
|
|
|
1275 if (ctx->copy_start == NULL && copy_end) {
|
|
|
1276 ctx->copy_start = ctx->buf->pos;
|
|
|
1277 }
|
|
|
1278
|
|
|
1279 return NGX_HTTP_SSI_ERROR;
|
|
|
1280
|
|
|
1281 default:
|
|
|
1282 state = ssi_error_state;
|
|
|
1283 break;
|
|
|
1284 }
|
|
|
1285
|
|
|
1286 break;
|
|
|
1287 }
|
|
|
1288 }
|
|
|
1289
|
|
|
1290 ctx->state = state;
|
|
|
1291 ctx->pos = p;
|
|
|
1292 ctx->looked = looked;
|
|
|
1293
|
|
|
1294 ctx->copy_end = (state == ssi_start_state) ? p : copy_end;
|
|
|
1295
|
|
|
1296 if (ctx->copy_start == NULL && ctx->copy_end) {
|
|
|
1297 ctx->copy_start = ctx->buf->pos;
|
|
|
1298 }
|
|
|
1299
|
|
|
1300 return NGX_AGAIN;
|
|
|
1301 }
|
|
|
1302
|
|
|
1303
|
|
|
1304 static ngx_int_t
|
|
|
1305 ngx_http_ssi_echo(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
|
|
|
1306 ngx_str_t **params)
|
|
|
1307 {
|
|
50
|
1308 ngx_uint_t i;
|
|
48
|
1309 ngx_buf_t *b;
|
|
|
1310 ngx_str_t *var, *value;
|
|
|
1311 ngx_chain_t *cl;
|
|
50
|
1312 ngx_http_variable_value_t *vv;
|
|
46
|
1313
|
|
|
1314 var = params[NGX_HTTP_SSI_ECHO_VAR];
|
|
|
1315
|
|
50
|
1316 for (i = 0; i < var->len; i++) {
|
|
58
|
1317 var->data[i] = ngx_tolower(var->data[i]);
|
|
50
|
1318 }
|
|
46
|
1319
|
|
50
|
1320 vv = ngx_http_get_variable(r, var);
|
|
|
1321
|
|
|
1322 if (vv == NULL) {
|
|
46
|
1323 return NGX_HTTP_SSI_ERROR;
|
|
|
1324 }
|
|
|
1325
|
|
58
|
1326 if (vv == NGX_HTTP_VAR_NOT_FOUND) {
|
|
48
|
1327 value = params[NGX_HTTP_SSI_ECHO_DEFAULT];
|
|
|
1328
|
|
|
1329 if (value == NULL) {
|
|
|
1330 value = &ngx_http_ssi_none;
|
|
|
1331
|
|
|
1332 } else if (value->len == 0) {
|
|
|
1333 return NGX_OK;
|
|
|
1334 }
|
|
|
1335
|
|
|
1336 } else {
|
|
50
|
1337 value = &vv->text;
|
|
48
|
1338
|
|
|
1339 if (value->len == 0) {
|
|
|
1340 return NGX_OK;
|
|
|
1341 }
|
|
|
1342 }
|
|
|
1343
|
|
|
1344 b = ngx_calloc_buf(r->pool);
|
|
|
1345 if (b == NULL) {
|
|
|
1346 return NGX_HTTP_SSI_ERROR;
|
|
|
1347 }
|
|
|
1348
|
|
|
1349 cl = ngx_alloc_chain_link(r->pool);
|
|
|
1350 if (cl == NULL) {
|
|
46
|
1351 return NGX_HTTP_SSI_ERROR;
|
|
|
1352 }
|
|
|
1353
|
|
|
1354 b->memory = 1;
|
|
|
1355 b->pos = value->data;
|
|
|
1356 b->last = value->data + value->len;
|
|
|
1357
|
|
|
1358 cl->buf = b;
|
|
|
1359 cl->next = NULL;
|
|
|
1360 *ctx->last_out = cl;
|
|
|
1361 ctx->last_out = &cl->next;
|
|
|
1362
|
|
|
1363 return NGX_OK;
|
|
|
1364 }
|
|
|
1365
|
|
|
1366
|
|
58
|
1367 static ngx_int_t
|
|
|
1368 ngx_http_ssi_config(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
|
|
|
1369 ngx_str_t **params)
|
|
|
1370 {
|
|
|
1371 ngx_str_t *value;
|
|
|
1372
|
|
|
1373 value = params[NGX_HTTP_SSI_CONFIG_TIMEFMT];
|
|
|
1374
|
|
|
1375 if (value) {
|
|
|
1376 ctx->timefmt = *value;
|
|
|
1377 }
|
|
|
1378
|
|
96
|
1379 value = params[NGX_HTTP_SSI_CONFIG_ERRMSG];
|
|
|
1380
|
|
|
1381 if (value) {
|
|
|
1382 ctx->errmsg = *value;
|
|
|
1383 }
|
|
|
1384
|
|
58
|
1385 return NGX_OK;
|
|
|
1386 }
|
|
|
1387
|
|
|
1388
|
|
|
1389 static ngx_int_t
|
|
|
1390 ngx_http_ssi_include(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
|
|
|
1391 ngx_str_t **params)
|
|
|
1392 {
|
|
78
|
1393 u_char ch, *p, **value, *data;
|
|
|
1394 size_t *size, len, prefix;
|
|
58
|
1395 ngx_uint_t i, j, n, bracket;
|
|
|
1396 ngx_str_t uri, args, name;
|
|
|
1397 ngx_array_t lengths, values;
|
|
|
1398 ngx_http_variable_value_t *vv;
|
|
|
1399
|
|
|
1400 /* TODO: file, virtual vs file */
|
|
|
1401
|
|
|
1402 uri = *params[NGX_HTTP_SSI_INCLUDE_VIRTUAL];
|
|
|
1403 args.len = 0;
|
|
|
1404 args.data = NULL;
|
|
78
|
1405 prefix = 0;
|
|
58
|
1406
|
|
|
1407 n = ngx_http_script_variables_count(&uri);
|
|
|
1408
|
|
|
1409 if (n > 0) {
|
|
|
1410
|
|
|
1411 if (ngx_array_init(&lengths, r->pool, 8, sizeof(size_t *)) != NGX_OK) {
|
|
|
1412 return NGX_HTTP_SSI_ERROR;
|
|
|
1413 }
|
|
|
1414
|
|
|
1415 if (ngx_array_init(&values, r->pool, 8, sizeof(u_char *)) != NGX_OK) {
|
|
|
1416 return NGX_HTTP_SSI_ERROR;
|
|
|
1417 }
|
|
|
1418
|
|
|
1419 len = 0;
|
|
|
1420
|
|
|
1421 for (i = 0; i < uri.len; /* void */ ) {
|
|
|
1422
|
|
|
1423 name.len = 0;
|
|
|
1424
|
|
|
1425 if (uri.data[i] == '$') {
|
|
|
1426
|
|
|
1427 if (++i == uri.len) {
|
|
|
1428 goto invalid_variable;
|
|
|
1429 }
|
|
|
1430
|
|
|
1431 if (uri.data[i] == '{') {
|
|
|
1432 bracket = 1;
|
|
|
1433
|
|
|
1434 if (++i == uri.len) {
|
|
|
1435 goto invalid_variable;
|
|
|
1436 }
|
|
|
1437
|
|
|
1438 name.data = &uri.data[i];
|
|
|
1439
|
|
|
1440 } else {
|
|
|
1441 bracket = 0;
|
|
|
1442 name.data = &uri.data[i];
|
|
|
1443 }
|
|
|
1444
|
|
|
1445 for ( /* void */ ; i < uri.len; i++, name.len++) {
|
|
|
1446 ch = uri.data[i];
|
|
|
1447
|
|
|
1448 if (ch == '}' && bracket) {
|
|
|
1449 i++;
|
|
|
1450 bracket = 0;
|
|
|
1451 break;
|
|
|
1452 }
|
|
|
1453
|
|
|
1454 if ((ch >= 'A' && ch <= 'Z')
|
|
|
1455 || (ch >= 'a' && ch <= 'z')
|
|
|
1456 || (ch >= '0' && ch <= '9')
|
|
|
1457 || ch == '_')
|
|
|
1458 {
|
|
|
1459 continue;
|
|
|
1460 }
|
|
|
1461
|
|
|
1462 break;
|
|
|
1463 }
|
|
|
1464
|
|
|
1465 if (bracket) {
|
|
|
1466 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1467 "the closing bracket in \"%V\" "
|
|
|
1468 "variable is missing", &name);
|
|
|
1469 return NGX_HTTP_SSI_ERROR;
|
|
|
1470 }
|
|
|
1471
|
|
|
1472 if (name.len == 0) {
|
|
|
1473 goto invalid_variable;
|
|
|
1474 }
|
|
|
1475
|
|
|
1476 for (j = 0; j < name.len; j++) {
|
|
|
1477 name.data[j] = ngx_tolower(name.data[j]);
|
|
|
1478 }
|
|
|
1479
|
|
|
1480 vv = ngx_http_get_variable(r, &name);
|
|
|
1481
|
|
|
1482 if (vv == NULL) {
|
|
|
1483 return NGX_HTTP_SSI_ERROR;
|
|
|
1484 }
|
|
|
1485
|
|
|
1486 if (vv == NGX_HTTP_VAR_NOT_FOUND) {
|
|
|
1487 continue;
|
|
|
1488 }
|
|
|
1489
|
|
|
1490 name = vv->text;
|
|
|
1491
|
|
|
1492 } else {
|
|
|
1493 name.data = &uri.data[i];
|
|
|
1494
|
|
|
1495 while (i < uri.len && uri.data[i] != '$') {
|
|
|
1496 i++;
|
|
|
1497 name.len++;
|
|
|
1498 }
|
|
|
1499 }
|
|
|
1500
|
|
|
1501 len += name.len;
|
|
|
1502
|
|
|
1503 size = ngx_array_push(&lengths);
|
|
|
1504 if (size == NULL) {
|
|
|
1505 return NGX_HTTP_SSI_ERROR;
|
|
|
1506 }
|
|
|
1507
|
|
|
1508 *size = name.len;
|
|
|
1509
|
|
|
1510 value = ngx_array_push(&values);
|
|
|
1511 if (value == NULL) {
|
|
|
1512 return NGX_HTTP_SSI_ERROR;
|
|
|
1513 }
|
|
|
1514
|
|
|
1515 *value = name.data;
|
|
|
1516 }
|
|
|
1517
|
|
78
|
1518 size = lengths.elts;
|
|
|
1519 value = values.elts;
|
|
|
1520
|
|
|
1521 for (i = 0; i < values.nelts; i++) {
|
|
|
1522 if (size[i] != 0) {
|
|
|
1523 if (*value[i] != '/') {
|
|
|
1524 for (prefix = r->uri.len; prefix; prefix--) {
|
|
|
1525 if (r->uri.data[prefix - 1] == '/') {
|
|
|
1526 len += prefix;
|
|
|
1527 break;
|
|
|
1528 }
|
|
|
1529 }
|
|
|
1530 }
|
|
|
1531
|
|
|
1532 break;
|
|
|
1533 }
|
|
|
1534 }
|
|
|
1535
|
|
58
|
1536 p = ngx_palloc(r->pool, len);
|
|
|
1537 if (p == NULL) {
|
|
|
1538 return NGX_HTTP_SSI_ERROR;
|
|
|
1539 }
|
|
|
1540
|
|
|
1541 uri.len = len;
|
|
|
1542 uri.data = p;
|
|
|
1543
|
|
78
|
1544 if (prefix) {
|
|
|
1545 p = ngx_cpymem(p, r->uri.data, prefix);
|
|
|
1546 }
|
|
58
|
1547
|
|
|
1548 for (i = 0; i < values.nelts; i++) {
|
|
|
1549 p = ngx_cpymem(p, value[i], size[i]);
|
|
|
1550 }
|
|
78
|
1551
|
|
|
1552 } else {
|
|
|
1553 if (uri.data[0] != '/') {
|
|
|
1554 for (prefix = r->uri.len; prefix; prefix--) {
|
|
|
1555 if (r->uri.data[prefix - 1] == '/') {
|
|
|
1556 break;
|
|
|
1557 }
|
|
|
1558 }
|
|
|
1559
|
|
|
1560 if (prefix) {
|
|
|
1561 len = prefix + uri.len;
|
|
|
1562
|
|
|
1563 data = ngx_palloc(r->pool, len);
|
|
|
1564 if (data == NULL) {
|
|
|
1565 return NGX_HTTP_SSI_ERROR;
|
|
|
1566 }
|
|
|
1567
|
|
|
1568 p = ngx_cpymem(data, r->uri.data, prefix);
|
|
|
1569 ngx_memcpy(p, uri.data, uri.len);
|
|
|
1570
|
|
|
1571 uri.len = len;
|
|
|
1572 uri.data = data;
|
|
|
1573 }
|
|
|
1574 }
|
|
58
|
1575 }
|
|
|
1576
|
|
|
1577 for (i = 0; i < uri.len; i++) {
|
|
|
1578 if (uri.data[i] == '?') {
|
|
|
1579 args.len = uri.len - i - 1;
|
|
|
1580 args.data = &uri.data[i + 1];
|
|
|
1581 uri.len -= args.len + 1;
|
|
|
1582
|
|
|
1583 break;
|
|
|
1584 }
|
|
|
1585 }
|
|
|
1586
|
|
|
1587 if (ngx_http_subrequest(r, &uri, &args) != NGX_OK) {
|
|
|
1588 return NGX_HTTP_SSI_ERROR;
|
|
|
1589 }
|
|
|
1590
|
|
|
1591 return NGX_OK;
|
|
|
1592
|
|
|
1593 invalid_variable:
|
|
|
1594
|
|
|
1595 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1596 "invalid variable name in \"%V\"", &uri);
|
|
|
1597
|
|
|
1598 return NGX_ERROR;
|
|
|
1599 }
|
|
|
1600
|
|
|
1601
|
|
|
1602 static ngx_int_t
|
|
|
1603 ngx_http_ssi_if(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
|
|
|
1604 ngx_str_t **params)
|
|
|
1605 {
|
|
100
|
1606 u_char *p, *last;
|
|
|
1607 ngx_str_t *expr, var, left, right;
|
|
|
1608 ngx_int_t rc;
|
|
|
1609 ngx_uint_t negative, noregex;
|
|
58
|
1610 ngx_http_variable_value_t *vv;
|
|
100
|
1611 #if (NGX_PCRE)
|
|
|
1612 ngx_str_t err;
|
|
|
1613 ngx_regex_t *regex;
|
|
|
1614 u_char errstr[NGX_MAX_CONF_ERRSTR];
|
|
|
1615 #endif
|
|
58
|
1616
|
|
|
1617 expr = params[NGX_HTTP_SSI_IF_EXPR];
|
|
|
1618
|
|
|
1619 if (expr->data[0] != '$') {
|
|
|
1620 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1621 "invalid variable name in \"%V\"", expr);
|
|
|
1622 return NGX_HTTP_SSI_ERROR;
|
|
|
1623 }
|
|
|
1624
|
|
|
1625 var.data = expr->data + 1;
|
|
100
|
1626 last = expr->data + expr->len;
|
|
|
1627
|
|
|
1628 for (p = var.data; p < last; p++) {
|
|
|
1629 if (*p >= 'A' && *p <= 'Z') {
|
|
|
1630 *p |= 0x20;
|
|
|
1631 continue;
|
|
|
1632 }
|
|
58
|
1633
|
|
100
|
1634 if ((*p >= 'a' && *p <= 'z') || (*p >= '0' && *p <= '9') || *p == '_') {
|
|
|
1635 continue;
|
|
|
1636 }
|
|
|
1637
|
|
|
1638 break;
|
|
|
1639 }
|
|
|
1640
|
|
|
1641 var.len = p - var.data;
|
|
|
1642
|
|
|
1643 while (p < last && *p == ' ') {
|
|
|
1644 p++;
|
|
58
|
1645 }
|
|
|
1646
|
|
|
1647 vv = ngx_http_get_variable(r, &var);
|
|
|
1648
|
|
|
1649 if (vv == NULL) {
|
|
|
1650 return NGX_HTTP_SSI_ERROR;
|
|
|
1651 }
|
|
|
1652
|
|
100
|
1653 if (p == last) {
|
|
|
1654 if (vv != NGX_HTTP_VAR_NOT_FOUND && vv->text.len != 0) {
|
|
|
1655 ctx->output = 1;
|
|
|
1656
|
|
|
1657 } else {
|
|
|
1658 ctx->output = 0;
|
|
|
1659 }
|
|
|
1660
|
|
|
1661 return NGX_OK;
|
|
|
1662 }
|
|
|
1663
|
|
|
1664 if (p < last && *p == '=') {
|
|
|
1665 negative = 0;
|
|
|
1666 p++;
|
|
|
1667
|
|
|
1668 } else if (p + 1 < last && *p == '!' && *(p + 1) == '=') {
|
|
|
1669 negative = 1;
|
|
|
1670 p += 2;
|
|
|
1671
|
|
|
1672 } else {
|
|
|
1673 goto invalid_expression;
|
|
|
1674 }
|
|
|
1675
|
|
|
1676 while (p < last && *p == ' ') {
|
|
|
1677 p++;
|
|
|
1678 }
|
|
|
1679
|
|
|
1680 if (p < last && *p == '/') {
|
|
|
1681 if (*(last - 1) != '/') {
|
|
|
1682 goto invalid_expression;
|
|
|
1683 }
|
|
|
1684
|
|
|
1685 noregex = 0;
|
|
|
1686 last--;
|
|
|
1687 p++;
|
|
|
1688
|
|
|
1689 } else {
|
|
|
1690 noregex = 1;
|
|
|
1691 }
|
|
|
1692
|
|
|
1693 right.len = last - p;
|
|
|
1694 right.data = p;
|
|
|
1695
|
|
|
1696 if (vv == NGX_HTTP_VAR_NOT_FOUND) {
|
|
|
1697 left.len = 0;
|
|
|
1698 left.data = (u_char *) "";
|
|
|
1699
|
|
|
1700 } else {
|
|
|
1701 left = vv->text;
|
|
|
1702 }
|
|
|
1703
|
|
|
1704 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1705 "left: \"%V\" right: \"%V\"", &left, &right);
|
|
|
1706
|
|
|
1707 if (noregex) {
|
|
|
1708 if (left.len != right.len) {
|
|
|
1709 rc = -1;
|
|
|
1710
|
|
|
1711 } else {
|
|
|
1712 rc = ngx_strncmp(left.data, right.data, right.len);
|
|
|
1713 }
|
|
|
1714
|
|
|
1715 } else {
|
|
|
1716 #if (NGX_PCRE)
|
|
|
1717 err.len = NGX_MAX_CONF_ERRSTR;
|
|
|
1718 err.data = errstr;
|
|
|
1719
|
|
|
1720 right.data[right.len] = '\0';
|
|
|
1721
|
|
|
1722 regex = ngx_regex_compile(&right, 0, r->pool, &err);
|
|
|
1723
|
|
|
1724 if (regex == NULL) {
|
|
|
1725 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "%s", err.data);
|
|
|
1726 return NGX_HTTP_SSI_ERROR;
|
|
|
1727 }
|
|
|
1728
|
|
|
1729 rc = ngx_regex_exec(regex, &left, NULL, 0);
|
|
|
1730
|
|
|
1731 if (rc != NGX_REGEX_NO_MATCHED && rc < 0) {
|
|
|
1732 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
|
|
|
1733 ngx_regex_exec_n " failed: %d on \"%V\" using \"%V\"",
|
|
|
1734 rc, &left, &right);
|
|
|
1735 return NGX_HTTP_SSI_ERROR;
|
|
|
1736 }
|
|
|
1737 #else
|
|
|
1738 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
|
|
|
1739 "the using of the regex \"%V\" in SSI "
|
|
|
1740 "requires PCRE library", &right);
|
|
|
1741
|
|
|
1742 return NGX_HTTP_SSI_ERROR;
|
|
|
1743 #endif
|
|
|
1744 }
|
|
|
1745
|
|
|
1746 if ((rc == 0 && !negative) || (rc != 0 && negative)) {
|
|
58
|
1747 ctx->output = 1;
|
|
|
1748
|
|
|
1749 } else {
|
|
|
1750 ctx->output = 0;
|
|
|
1751 }
|
|
|
1752
|
|
|
1753 return NGX_OK;
|
|
100
|
1754
|
|
|
1755 invalid_expression:
|
|
|
1756
|
|
|
1757 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1758 "invalid expression in \"%V\"", expr);
|
|
|
1759
|
|
|
1760 return NGX_HTTP_SSI_ERROR;
|
|
58
|
1761 }
|
|
|
1762
|
|
|
1763
|
|
|
1764 static ngx_int_t
|
|
|
1765 ngx_http_ssi_else(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
|
|
|
1766 ngx_str_t **params)
|
|
|
1767 {
|
|
|
1768 ctx->output = !ctx->output;
|
|
|
1769
|
|
|
1770 return NGX_OK;
|
|
|
1771 }
|
|
|
1772
|
|
|
1773
|
|
|
1774 static ngx_int_t
|
|
|
1775 ngx_http_ssi_endif(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
|
|
|
1776 ngx_str_t **params)
|
|
|
1777 {
|
|
|
1778 ctx->output = 1;
|
|
|
1779
|
|
|
1780 return NGX_OK;
|
|
|
1781 }
|
|
|
1782
|
|
|
1783
|
|
|
1784 static ngx_http_variable_value_t *
|
|
|
1785 ngx_http_ssi_date_gmt_local_variable(ngx_http_request_t *r, uintptr_t gmt)
|
|
|
1786 {
|
|
|
1787 ngx_http_ssi_ctx_t *ctx;
|
|
|
1788 ngx_http_variable_value_t *vv;
|
|
|
1789 struct tm tm;
|
|
|
1790 char buf[NGX_HTTP_SSI_DATE_LEN];
|
|
|
1791
|
|
|
1792 vv = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t));
|
|
|
1793 if (vv == NULL) {
|
|
|
1794 return NULL;
|
|
|
1795 }
|
|
|
1796
|
|
|
1797 ctx = ngx_http_get_module_ctx(r, ngx_http_ssi_filter_module);
|
|
|
1798
|
|
|
1799 if (ctx->timefmt.len == sizeof("%s") - 1
|
|
|
1800 && ctx->timefmt.data[0] == '%' && ctx->timefmt.data[1] == 's')
|
|
|
1801 {
|
|
|
1802 vv->value = ngx_time() + (gmt ? 0 : ngx_gmtoff);
|
|
|
1803
|
|
|
1804 vv->text.data = ngx_palloc(r->pool, NGX_TIME_T_LEN);
|
|
|
1805 if (vv->text.data == NULL) {
|
|
|
1806 return NULL;
|
|
|
1807 }
|
|
|
1808
|
|
|
1809 vv->text.len = ngx_sprintf(vv->text.data, "%T", vv->value)
|
|
|
1810 - vv->text.data;
|
|
|
1811 return vv;
|
|
|
1812 }
|
|
|
1813
|
|
|
1814 if (gmt) {
|
|
|
1815 ngx_libc_gmtime(&tm);
|
|
|
1816 } else {
|
|
|
1817 ngx_libc_localtime(&tm);
|
|
|
1818 }
|
|
|
1819
|
|
|
1820 vv->value = ngx_time() + (gmt ? 0 : ngx_gmtoff);
|
|
|
1821
|
|
|
1822 vv->text.len = strftime(buf, NGX_HTTP_SSI_DATE_LEN,
|
|
|
1823 (char *) ctx->timefmt.data, &tm);
|
|
|
1824 if (vv->text.len == 0) {
|
|
|
1825 return NULL;
|
|
|
1826 }
|
|
|
1827
|
|
|
1828 vv->text.data = ngx_palloc(r->pool, vv->text.len);
|
|
|
1829 if (vv->text.data == NULL) {
|
|
|
1830 return NULL;
|
|
|
1831 }
|
|
|
1832
|
|
|
1833 ngx_memcpy(vv->text.data, buf, vv->text.len);
|
|
|
1834
|
|
|
1835 return vv;
|
|
|
1836 }
|
|
|
1837
|
|
|
1838
|
|
76
|
1839 static char *
|
|
|
1840 ngx_http_ssi_types(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
1841 {
|
|
|
1842 ngx_http_ssi_conf_t *scf = conf;
|
|
|
1843
|
|
|
1844 ngx_str_t *value, *type;
|
|
|
1845 ngx_uint_t i;
|
|
|
1846
|
|
|
1847 if (scf->types == NULL) {
|
|
|
1848 scf->types = ngx_array_create(cf->pool, 4, sizeof(ngx_str_t));
|
|
|
1849 if (scf->types == NULL) {
|
|
|
1850 return NGX_CONF_ERROR;
|
|
|
1851 }
|
|
|
1852
|
|
|
1853 type = ngx_array_push(scf->types);
|
|
|
1854 if (type == NULL) {
|
|
|
1855 return NGX_CONF_ERROR;
|
|
|
1856 }
|
|
|
1857
|
|
|
1858 type->len = sizeof("text/html") - 1;
|
|
|
1859 type->data = (u_char *) "text/html";
|
|
|
1860 }
|
|
|
1861
|
|
|
1862 value = cf->args->elts;
|
|
|
1863
|
|
|
1864 for (i = 1; i < cf->args->nelts; i++) {
|
|
|
1865
|
|
|
1866 if (ngx_strcmp(value[i].data, "text/html") == 0) {
|
|
|
1867 continue;
|
|
|
1868 }
|
|
|
1869
|
|
|
1870 type = ngx_array_push(scf->types);
|
|
|
1871 if (type == NULL) {
|
|
|
1872 return NGX_CONF_ERROR;
|
|
|
1873 }
|
|
|
1874
|
|
|
1875 type->len = value[i].len;
|
|
|
1876
|
|
|
1877 type->data = ngx_palloc(cf->pool, type->len + 1);
|
|
|
1878 if (type->data == NULL) {
|
|
|
1879 return NGX_CONF_ERROR;
|
|
|
1880 }
|
|
|
1881
|
|
|
1882 ngx_cpystrn(type->data, value[i].data, type->len + 1);
|
|
|
1883 }
|
|
|
1884
|
|
|
1885 return NGX_CONF_OK;
|
|
|
1886 }
|
|
|
1887
|
|
|
1888
|
|
58
|
1889 static ngx_int_t
|
|
|
1890 ngx_http_ssi_add_variables(ngx_conf_t *cf)
|
|
|
1891 {
|
|
|
1892 ngx_http_variable_t *var, *v;
|
|
|
1893
|
|
|
1894 for (v = ngx_http_ssi_vars; v->name.len; v++) {
|
|
|
1895 var = ngx_http_add_variable(cf, &v->name, v->flags);
|
|
|
1896 if (var == NULL) {
|
|
|
1897 return NGX_ERROR;
|
|
|
1898 }
|
|
|
1899
|
|
|
1900 var->handler = v->handler;
|
|
|
1901 var->data = v->data;
|
|
|
1902 }
|
|
|
1903
|
|
|
1904 return NGX_OK;
|
|
|
1905 }
|
|
|
1906
|
|
|
1907
|
|
46
|
1908 static void *
|
|
|
1909 ngx_http_ssi_create_conf(ngx_conf_t *cf)
|
|
|
1910 {
|
|
|
1911 ngx_http_ssi_conf_t *conf;
|
|
|
1912
|
|
48
|
1913 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_ssi_conf_t));
|
|
|
1914 if (conf == NULL) {
|
|
46
|
1915 return NGX_CONF_ERROR;
|
|
|
1916 }
|
|
|
1917
|
|
76
|
1918 /*
|
|
|
1919 * set by ngx_pcalloc():
|
|
|
1920 *
|
|
|
1921 * conf->types = NULL;
|
|
|
1922 */
|
|
|
1923
|
|
46
|
1924 conf->enable = NGX_CONF_UNSET;
|
|
|
1925 conf->silent_errors = NGX_CONF_UNSET;
|
|
58
|
1926 conf->ignore_recycled_buffers = NGX_CONF_UNSET;
|
|
46
|
1927
|
|
|
1928 conf->min_file_chunk = NGX_CONF_UNSET_SIZE;
|
|
|
1929 conf->value_len = NGX_CONF_UNSET_SIZE;
|
|
|
1930
|
|
|
1931 return conf;
|
|
|
1932 }
|
|
|
1933
|
|
|
1934
|
|
|
1935 static char *
|
|
|
1936 ngx_http_ssi_merge_conf(ngx_conf_t *cf, void *parent, void *child)
|
|
|
1937 {
|
|
|
1938 ngx_http_ssi_conf_t *prev = parent;
|
|
|
1939 ngx_http_ssi_conf_t *conf = child;
|
|
|
1940
|
|
76
|
1941 ngx_str_t *type;
|
|
|
1942
|
|
46
|
1943 ngx_conf_merge_value(conf->enable, prev->enable, 0);
|
|
|
1944 ngx_conf_merge_value(conf->silent_errors, prev->silent_errors, 0);
|
|
58
|
1945 ngx_conf_merge_value(conf->ignore_recycled_buffers,
|
|
|
1946 prev->ignore_recycled_buffers, 0);
|
|
46
|
1947
|
|
|
1948 ngx_conf_merge_size_value(conf->min_file_chunk, prev->min_file_chunk, 1024);
|
|
|
1949 ngx_conf_merge_size_value(conf->value_len, prev->value_len, 256);
|
|
|
1950
|
|
76
|
1951 if (conf->types == NULL) {
|
|
|
1952 if (prev->types == NULL) {
|
|
|
1953 conf->types = ngx_array_create(cf->pool, 1, sizeof(ngx_str_t));
|
|
|
1954 if (conf->types == NULL) {
|
|
|
1955 return NGX_CONF_ERROR;
|
|
|
1956 }
|
|
|
1957
|
|
|
1958 type = ngx_array_push(conf->types);
|
|
|
1959 if (type == NULL) {
|
|
|
1960 return NGX_CONF_ERROR;
|
|
|
1961 }
|
|
|
1962
|
|
|
1963 type->len = sizeof("text/html") - 1;
|
|
|
1964 type->data = (u_char *) "text/html";
|
|
|
1965
|
|
|
1966 } else {
|
|
|
1967 conf->types = prev->types;
|
|
|
1968 }
|
|
|
1969 }
|
|
|
1970
|
|
46
|
1971 return NGX_CONF_OK;
|
|
|
1972 }
|
|
|
1973
|
|
|
1974
|
|
|
1975 static ngx_int_t
|
|
|
1976 ngx_http_ssi_filter_init(ngx_cycle_t *cycle)
|
|
|
1977 {
|
|
|
1978 ngx_http_next_header_filter = ngx_http_top_header_filter;
|
|
|
1979 ngx_http_top_header_filter = ngx_http_ssi_header_filter;
|
|
|
1980
|
|
|
1981 ngx_http_next_body_filter = ngx_http_top_body_filter;
|
|
|
1982 ngx_http_top_body_filter = ngx_http_ssi_body_filter;
|
|
|
1983
|
|
|
1984 return NGX_OK;
|
|
|
1985 }
|
