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