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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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102
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11 #define NGX_HTTP_SSI_ERROR 1
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12
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13 #define NGX_HTTP_SSI_DATE_LEN 2048
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14
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15 #define NGX_HTTP_SSI_ADD_PREFIX 1
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178
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16 #define NGX_HTTP_SSI_ADD_ZERO 2
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184
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17 #define NGX_HTTP_SSI_EXPR_TEST 4
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58
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18
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46
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19
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20 typedef struct {
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146
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21 ngx_flag_t enable;
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22 ngx_flag_t silent_errors;
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23 ngx_flag_t ignore_recycled_buffers;
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24
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25 ngx_array_t *types; /* array of ngx_str_t */
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26
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27 size_t min_file_chunk;
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28 size_t value_len;
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29 } ngx_http_ssi_loc_conf_t;
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102
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30
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31
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32 typedef struct {
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146
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33 ngx_str_t name;
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160
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34 ngx_uint_t key;
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146
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35 ngx_str_t value;
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36 } ngx_http_ssi_var_t;
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46
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37
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38
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39 typedef enum {
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40 ssi_start_state = 0,
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41 ssi_tag_state,
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42 ssi_comment0_state,
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43 ssi_comment1_state,
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44 ssi_sharp_state,
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45 ssi_precommand_state,
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46 ssi_command_state,
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47 ssi_preparam_state,
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48 ssi_param_state,
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49 ssi_preequal_state,
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50 ssi_prevalue_state,
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51 ssi_double_quoted_value_state,
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52 ssi_quoted_value_state,
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53 ssi_quoted_symbol_state,
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54 ssi_postparam_state,
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55 ssi_comment_end0_state,
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56 ssi_comment_end1_state,
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57 ssi_error_state,
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58 ssi_error_end0_state,
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59 ssi_error_end1_state
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60 } ngx_http_ssi_state_e;
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61
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62
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58
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63 static ngx_int_t ngx_http_ssi_output(ngx_http_request_t *r,
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64 ngx_http_ssi_ctx_t *ctx);
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46
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65 static ngx_int_t ngx_http_ssi_parse(ngx_http_request_t *r,
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66 ngx_http_ssi_ctx_t *ctx);
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102
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67 static ngx_str_t *ngx_http_ssi_get_variable(ngx_http_request_t *r,
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160
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68 ngx_str_t *name, ngx_uint_t key);
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102
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69 static ngx_int_t ngx_http_ssi_evaluate_string(ngx_http_request_t *r,
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70 ngx_http_ssi_ctx_t *ctx, ngx_str_t *text, ngx_uint_t flags);
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71
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72 static ngx_int_t ngx_http_ssi_include(ngx_http_request_t *r,
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73 ngx_http_ssi_ctx_t *ctx, ngx_str_t **params);
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46
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74 static ngx_int_t ngx_http_ssi_echo(ngx_http_request_t *r,
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75 ngx_http_ssi_ctx_t *ctx, ngx_str_t **params);
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58
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76 static ngx_int_t ngx_http_ssi_config(ngx_http_request_t *r,
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77 ngx_http_ssi_ctx_t *ctx, ngx_str_t **params);
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102
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78 static ngx_int_t ngx_http_ssi_set(ngx_http_request_t *r,
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58
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79 ngx_http_ssi_ctx_t *ctx, ngx_str_t **params);
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80 static ngx_int_t ngx_http_ssi_if(ngx_http_request_t *r,
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81 ngx_http_ssi_ctx_t *ctx, ngx_str_t **params);
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82 static ngx_int_t ngx_http_ssi_else(ngx_http_request_t *r,
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83 ngx_http_ssi_ctx_t *ctx, ngx_str_t **params);
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84 static ngx_int_t ngx_http_ssi_endif(ngx_http_request_t *r,
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85 ngx_http_ssi_ctx_t *ctx, ngx_str_t **params);
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46
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86
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122
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87 static ngx_int_t ngx_http_ssi_date_gmt_local_variable(ngx_http_request_t *r,
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88 ngx_http_variable_value_t *v, uintptr_t gmt);
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58
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89
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76
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90 static char *ngx_http_ssi_types(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
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91
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146
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92 static ngx_int_t ngx_http_ssi_preconfiguration(ngx_conf_t *cf);
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93 static void *ngx_http_ssi_create_main_conf(ngx_conf_t *cf);
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94 static char *ngx_http_ssi_init_main_conf(ngx_conf_t *cf, void *conf);
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46
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95 static void *ngx_http_ssi_create_conf(ngx_conf_t *cf);
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96 static char *ngx_http_ssi_merge_conf(ngx_conf_t *cf,
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97 void *parent, void *child);
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98 static ngx_int_t ngx_http_ssi_filter_init(ngx_cycle_t *cycle);
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99
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100
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101 static ngx_command_t ngx_http_ssi_filter_commands[] = {
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102
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103 { ngx_string("ssi"),
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104 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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105 ngx_conf_set_flag_slot,
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106 NGX_HTTP_LOC_CONF_OFFSET,
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146
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107 offsetof(ngx_http_ssi_loc_conf_t, enable),
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108 NULL },
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109
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110 { ngx_string("ssi_silent_errors"),
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111 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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112 ngx_conf_set_flag_slot,
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113 NGX_HTTP_LOC_CONF_OFFSET,
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146
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114 offsetof(ngx_http_ssi_loc_conf_t, silent_errors),
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115 NULL },
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116
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58
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117 { ngx_string("ssi_ignore_recycled_buffers"),
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118 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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119 ngx_conf_set_flag_slot,
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120 NGX_HTTP_LOC_CONF_OFFSET,
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146
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121 offsetof(ngx_http_ssi_loc_conf_t, ignore_recycled_buffers),
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122 NULL },
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123
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46
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124 { ngx_string("ssi_min_file_chunk"),
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125 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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126 ngx_conf_set_size_slot,
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127 NGX_HTTP_LOC_CONF_OFFSET,
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146
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128 offsetof(ngx_http_ssi_loc_conf_t, min_file_chunk),
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129 NULL },
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130
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138
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131 { ngx_string("ssi_value_length"),
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132 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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133 ngx_conf_set_size_slot,
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134 NGX_HTTP_LOC_CONF_OFFSET,
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146
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135 offsetof(ngx_http_ssi_loc_conf_t, value_len),
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138
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136 NULL },
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137
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76
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138 { ngx_string("ssi_types"),
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139 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
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140 ngx_http_ssi_types,
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141 NGX_HTTP_LOC_CONF_OFFSET,
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142 0,
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143 NULL },
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144
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46
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145 ngx_null_command
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146 };
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147
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148
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126
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149
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46
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150 static ngx_http_module_t ngx_http_ssi_filter_module_ctx = {
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146
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151 ngx_http_ssi_preconfiguration, /* preconfiguration */
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58
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152 NULL, /* postconfiguration */
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46
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153
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146
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154 ngx_http_ssi_create_main_conf, /* create main configuration */
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155 ngx_http_ssi_init_main_conf, /* init main configuration */
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46
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156
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157 NULL, /* create server configuration */
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158 NULL, /* merge server configuration */
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159
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160 ngx_http_ssi_create_conf, /* create location configuration */
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161 ngx_http_ssi_merge_conf /* merge location configuration */
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126
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162 };
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46
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163
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164
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165 ngx_module_t ngx_http_ssi_filter_module = {
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58
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166 NGX_MODULE_V1,
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46
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167 &ngx_http_ssi_filter_module_ctx, /* module context */
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168 ngx_http_ssi_filter_commands, /* module directives */
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169 NGX_HTTP_MODULE, /* module type */
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90
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170 NULL, /* init master */
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46
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171 ngx_http_ssi_filter_init, /* init module */
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90
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172 NULL, /* init process */
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173 NULL, /* init thread */
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174 NULL, /* exit thread */
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175 NULL, /* exit process */
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176 NULL, /* exit master */
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177 NGX_MODULE_V1_PADDING
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46
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178 };
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179
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180
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118
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181 static ngx_http_output_header_filter_pt ngx_http_next_header_filter;
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182 static ngx_http_output_body_filter_pt ngx_http_next_body_filter;
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46
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183
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184
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185 static u_char ngx_http_ssi_string[] = "<!--";
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186
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187 static ngx_str_t ngx_http_ssi_none = ngx_string("(none)");
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188
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102
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189 #define NGX_HTTP_SSI_INCLUDE_VIRTUAL 0
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190 #define NGX_HTTP_SSI_INCLUDE_FILE 1
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46
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191
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58
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192 #define NGX_HTTP_SSI_ECHO_VAR 0
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193 #define NGX_HTTP_SSI_ECHO_DEFAULT 1
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194
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96
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195 #define NGX_HTTP_SSI_CONFIG_ERRMSG 0
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196 #define NGX_HTTP_SSI_CONFIG_TIMEFMT 1
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58
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197
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102
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198 #define NGX_HTTP_SSI_SET_VAR 0
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199 #define NGX_HTTP_SSI_SET_VALUE 1
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58
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200
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201 #define NGX_HTTP_SSI_IF_EXPR 0
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202
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46
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203
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102
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204 static ngx_http_ssi_param_t ngx_http_ssi_include_params[] = {
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146
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205 { ngx_string("virtual"), NGX_HTTP_SSI_INCLUDE_VIRTUAL, 0, 0 },
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206 { ngx_string("file"), NGX_HTTP_SSI_INCLUDE_FILE, 0, 0 },
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207 { ngx_null_string, 0, 0, 0 }
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102
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208 };
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209
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210
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46
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211 static ngx_http_ssi_param_t ngx_http_ssi_echo_params[] = {
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146
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212 { ngx_string("var"), NGX_HTTP_SSI_ECHO_VAR, 1, 0 },
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213 { ngx_string("default"), NGX_HTTP_SSI_ECHO_DEFAULT, 0, 0 },
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214 { ngx_null_string, 0, 0, 0 }
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46
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215 };
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216
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58
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217
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218 static ngx_http_ssi_param_t ngx_http_ssi_config_params[] = {
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146
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219 { ngx_string("errmsg"), NGX_HTTP_SSI_CONFIG_ERRMSG, 0, 0 },
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220 { ngx_string("timefmt"), NGX_HTTP_SSI_CONFIG_TIMEFMT, 0, 0 },
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221 { ngx_null_string, 0, 0, 0 }
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58
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222 };
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223
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224
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102
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225 static ngx_http_ssi_param_t ngx_http_ssi_set_params[] = {
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146
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226 { ngx_string("var"), NGX_HTTP_SSI_SET_VAR, 1, 0 },
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227 { ngx_string("value"), NGX_HTTP_SSI_SET_VALUE, 1, 0 },
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228 { ngx_null_string, 0, 0, 0 }
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102
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229 };
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230
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231
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58
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232 static ngx_http_ssi_param_t ngx_http_ssi_if_params[] = {
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146
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233 { ngx_string("expr"), NGX_HTTP_SSI_IF_EXPR, 1, 0 },
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234 { ngx_null_string, 0, 0, 0 }
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58
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235 };
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236
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237
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238 static ngx_http_ssi_param_t ngx_http_ssi_no_params[] = {
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146
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239 { ngx_null_string, 0, 0, 0 }
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58
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240 };
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241
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46
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242
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243 static ngx_http_ssi_command_t ngx_http_ssi_commands[] = {
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102
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244 { ngx_string("include"), ngx_http_ssi_include,
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245 ngx_http_ssi_include_params, 0, 1 },
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58
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246 { ngx_string("echo"), ngx_http_ssi_echo, ngx_http_ssi_echo_params, 0, 0 },
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247 { ngx_string("config"), ngx_http_ssi_config,
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248 ngx_http_ssi_config_params, 0, 0 },
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102
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249 { ngx_string("set"), ngx_http_ssi_set, ngx_http_ssi_set_params, 0, 0 },
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58
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250
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251 { ngx_string("if"), ngx_http_ssi_if, ngx_http_ssi_if_params, 0, 0 },
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178
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252 { ngx_string("elif"), ngx_http_ssi_if, ngx_http_ssi_if_params,
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253 NGX_HTTP_SSI_COND_IF, 0 },
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254 { ngx_string("else"), ngx_http_ssi_else, ngx_http_ssi_no_params,
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255 NGX_HTTP_SSI_COND_IF, 0 },
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256 { ngx_string("endif"), ngx_http_ssi_endif, ngx_http_ssi_no_params,
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257 NGX_HTTP_SSI_COND_ELSE, 0 },
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58
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258
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259 { ngx_null_string, NULL, NULL, 0, 0 }
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46
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260 };
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261
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262
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58
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263 static ngx_http_variable_t ngx_http_ssi_vars[] = {
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264
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186
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265 { ngx_string("date_local"), NULL, ngx_http_ssi_date_gmt_local_variable, 0,
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82
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266 NGX_HTTP_VAR_NOCACHABLE, 0 },
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58
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267
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186
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268 { ngx_string("date_gmt"), NULL, ngx_http_ssi_date_gmt_local_variable, 1,
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82
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269 NGX_HTTP_VAR_NOCACHABLE, 0 },
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58
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270
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186
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271 { ngx_null_string, NULL, NULL, 0, 0, 0 }
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58
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272 };
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273
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274
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275
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46
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276 static ngx_int_t
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277 ngx_http_ssi_header_filter(ngx_http_request_t *r)
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278 {
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146
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279 ngx_uint_t i;
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280 ngx_str_t *type;
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281 ngx_http_ssi_ctx_t *ctx;
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282 ngx_http_ssi_loc_conf_t *slcf;
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283
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284 slcf = ngx_http_get_module_loc_conf(r, ngx_http_ssi_filter_module);
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285
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286 if (!slcf->enable
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126
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287 || r->headers_out.content_type.len == 0
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288 || r->headers_out.content_length_n == 0)
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46
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289 {
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290 return ngx_http_next_header_filter(r);
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291 }
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292
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293
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146
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294 type = slcf->types->elts;
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295 for (i = 0; i < slcf->types->nelts; i++) {
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76
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296 if (r->headers_out.content_type.len >= type[i].len
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297 && ngx_strncasecmp(r->headers_out.content_type.data,
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298 type[i].data, type[i].len) == 0)
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299 {
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300 goto found;
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301 }
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302 }
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303
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304 return ngx_http_next_header_filter(r);
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305
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306
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307 found:
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308
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48
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309 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_ssi_ctx_t));
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310 if (ctx == NULL) {
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46
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311 return NGX_ERROR;
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312 }
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313
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314 ngx_http_set_ctx(r, ctx, ngx_http_ssi_filter_module);
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315
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316
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146
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317 ctx->value_len = slcf->value_len;
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46
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318 ctx->last_out = &ctx->out;
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319
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58
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320 ctx->output = 1;
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321
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46
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322 ctx->params.elts = ctx->params_array;
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323 ctx->params.size = sizeof(ngx_table_elt_t);
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324 ctx->params.nalloc = NGX_HTTP_SSI_PARAMS_N;
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325 ctx->params.pool = r->pool;
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326
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58
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327 ctx->timefmt.len = sizeof("%A, %d-%b-%Y %H:%M:%S %Z") - 1;
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328 ctx->timefmt.data = (u_char *) "%A, %d-%b-%Y %H:%M:%S %Z";
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46
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329
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96
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330 ctx->errmsg.len =
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331 sizeof("[an error occurred while processing the directive]") - 1;
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332 ctx->errmsg.data = (u_char *)
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333 "[an error occurred while processing the directive]";
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334
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46
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335 r->filter_need_in_memory = 1;
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336
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146
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337 if (r == r->main) {
|
|
126
|
338 ngx_http_clear_content_length(r);
|
|
|
339 ngx_http_clear_last_modified(r);
|
|
58
|
340 }
|
|
|
341
|
|
46
|
342 return ngx_http_next_header_filter(r);
|
|
|
343 }
|
|
|
344
|
|
|
345
|
|
|
346 static ngx_int_t
|
|
|
347 ngx_http_ssi_body_filter(ngx_http_request_t *r, ngx_chain_t *in)
|
|
|
348 {
|
|
146
|
349 ngx_int_t rc;
|
|
|
350 ngx_buf_t *b;
|
|
|
351 ngx_uint_t i, index;
|
|
|
352 ngx_chain_t *cl;
|
|
|
353 ngx_table_elt_t *param;
|
|
|
354 ngx_connection_t *c;
|
|
|
355 ngx_http_ssi_ctx_t *ctx;
|
|
|
356 ngx_http_ssi_param_t *prm;
|
|
|
357 ngx_http_ssi_command_t *cmd;
|
|
|
358 ngx_http_ssi_loc_conf_t *slcf;
|
|
|
359 ngx_http_ssi_main_conf_t *smcf;
|
|
148
|
360 ngx_str_t *params[NGX_HTTP_SSI_MAX_PARAMS + 1];
|
|
46
|
361
|
|
|
362 ctx = ngx_http_get_module_ctx(r, ngx_http_ssi_filter_module);
|
|
|
363
|
|
48
|
364 if (ctx == NULL || (in == NULL && ctx->in == NULL && ctx->busy == NULL)) {
|
|
46
|
365 return ngx_http_next_body_filter(r, in);
|
|
|
366 }
|
|
|
367
|
|
|
368 /* add the incoming chain to the chain ctx->in */
|
|
|
369
|
|
|
370 if (in) {
|
|
|
371 if (ngx_chain_add_copy(r->pool, &ctx->in, in) == NGX_ERROR) {
|
|
|
372 return NGX_ERROR;
|
|
|
373 }
|
|
|
374 }
|
|
|
375
|
|
146
|
376 slcf = ngx_http_get_module_loc_conf(r, ngx_http_ssi_filter_module);
|
|
46
|
377
|
|
58
|
378 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
379 "http ssi filter \"%V\"", &r->uri);
|
|
46
|
380
|
|
48
|
381 while (ctx->in || ctx->buf) {
|
|
46
|
382
|
|
48
|
383 if (ctx->buf == NULL ){
|
|
|
384 ctx->buf = ctx->in->buf;
|
|
|
385 ctx->in = ctx->in->next;
|
|
|
386 ctx->pos = ctx->buf->pos;
|
|
|
387 }
|
|
46
|
388
|
|
|
389 if (ctx->state == ssi_start_state) {
|
|
|
390 ctx->copy_start = ctx->pos;
|
|
|
391 ctx->copy_end = ctx->pos;
|
|
|
392 }
|
|
|
393
|
|
48
|
394 b = NULL;
|
|
|
395
|
|
46
|
396 while (ctx->pos < ctx->buf->last) {
|
|
|
397
|
|
|
398 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
399 "saved: %d state: %d", ctx->saved, ctx->state);
|
|
|
400
|
|
|
401 rc = ngx_http_ssi_parse(r, ctx);
|
|
|
402
|
|
|
403 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
404 "parse: %d, looked: %d %p-%p",
|
|
|
405 rc, ctx->looked, ctx->copy_start, ctx->copy_end);
|
|
|
406
|
|
|
407 if (rc == NGX_ERROR) {
|
|
|
408 return rc;
|
|
|
409 }
|
|
|
410
|
|
|
411 if (ctx->copy_start != ctx->copy_end) {
|
|
|
412
|
|
58
|
413 if (ctx->output) {
|
|
|
414
|
|
|
415 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
416 "saved: %d", ctx->saved);
|
|
|
417
|
|
|
418 if (ctx->saved) {
|
|
|
419
|
|
|
420 if (ctx->free) {
|
|
|
421 cl = ctx->free;
|
|
|
422 ctx->free = ctx->free->next;
|
|
|
423 b = cl->buf;
|
|
|
424 ngx_memzero(b, sizeof(ngx_buf_t));
|
|
46
|
425
|
|
58
|
426 } else {
|
|
|
427 b = ngx_calloc_buf(r->pool);
|
|
|
428 if (b == NULL) {
|
|
|
429 return NGX_ERROR;
|
|
|
430 }
|
|
|
431
|
|
|
432 cl = ngx_alloc_chain_link(r->pool);
|
|
|
433 if (cl == NULL) {
|
|
|
434 return NGX_ERROR;
|
|
|
435 }
|
|
|
436
|
|
|
437 cl->buf = b;
|
|
|
438 }
|
|
|
439
|
|
|
440 b->memory = 1;
|
|
|
441 b->pos = ngx_http_ssi_string;
|
|
|
442 b->last = ngx_http_ssi_string + ctx->saved;
|
|
|
443
|
|
|
444 *ctx->last_out = cl;
|
|
|
445 ctx->last_out = &cl->next;
|
|
|
446
|
|
|
447 ctx->saved = 0;
|
|
|
448 }
|
|
48
|
449
|
|
|
450 if (ctx->free) {
|
|
|
451 cl = ctx->free;
|
|
|
452 ctx->free = ctx->free->next;
|
|
|
453 b = cl->buf;
|
|
|
454
|
|
|
455 } else {
|
|
58
|
456 b = ngx_alloc_buf(r->pool);
|
|
48
|
457 if (b == NULL) {
|
|
|
458 return NGX_ERROR;
|
|
|
459 }
|
|
|
460
|
|
|
461 cl = ngx_alloc_chain_link(r->pool);
|
|
|
462 if (cl == NULL) {
|
|
|
463 return NGX_ERROR;
|
|
|
464 }
|
|
|
465
|
|
|
466 cl->buf = b;
|
|
46
|
467 }
|
|
|
468
|
|
58
|
469 ngx_memcpy(b, ctx->buf, sizeof(ngx_buf_t));
|
|
|
470
|
|
62
|
471 b->pos = ctx->copy_start;
|
|
|
472 b->last = ctx->copy_end;
|
|
|
473 b->shadow = NULL;
|
|
58
|
474 b->last_buf = 0;
|
|
|
475 b->recycled = 0;
|
|
46
|
476
|
|
58
|
477 if (b->in_file) {
|
|
146
|
478 if (slcf->min_file_chunk < (size_t) (b->last - b->pos))
|
|
58
|
479 {
|
|
|
480 b->file_last = b->file_pos + (b->last - b->start);
|
|
|
481 b->file_pos += b->pos - b->start;
|
|
|
482
|
|
|
483 } else {
|
|
|
484 b->in_file = 0;
|
|
|
485 }
|
|
|
486 }
|
|
|
487
|
|
|
488 cl->next = NULL;
|
|
46
|
489 *ctx->last_out = cl;
|
|
|
490 ctx->last_out = &cl->next;
|
|
|
491
|
|
58
|
492 } else {
|
|
46
|
493 ctx->saved = 0;
|
|
|
494 }
|
|
|
495 }
|
|
|
496
|
|
|
497 if (ctx->state == ssi_start_state) {
|
|
|
498 ctx->copy_start = ctx->pos;
|
|
|
499 ctx->copy_end = ctx->pos;
|
|
|
500
|
|
|
501 } else {
|
|
|
502 ctx->copy_start = NULL;
|
|
|
503 ctx->copy_end = NULL;
|
|
|
504 }
|
|
|
505
|
|
|
506 if (rc == NGX_AGAIN) {
|
|
|
507 continue;
|
|
|
508 }
|
|
|
509
|
|
|
510
|
|
122
|
511 b = NULL;
|
|
|
512
|
|
46
|
513 if (rc == NGX_OK) {
|
|
|
514
|
|
146
|
515 smcf = ngx_http_get_module_main_conf(r,
|
|
|
516 ngx_http_ssi_filter_module);
|
|
|
517
|
|
|
518 cmd = ngx_hash_find(&smcf->hash, ctx->key, ctx->command.data,
|
|
|
519 ctx->command.len);
|
|
|
520
|
|
|
521 if (cmd == NULL) {
|
|
|
522 if (ctx->output) {
|
|
|
523 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
524 "invalid SSI command: \"%V\"",
|
|
|
525 &ctx->command);
|
|
|
526 goto ssi_error;
|
|
46
|
527 }
|
|
|
528
|
|
146
|
529 continue;
|
|
46
|
530 }
|
|
|
531
|
|
178
|
532 if (cmd->conditional
|
|
|
533 && (ctx->conditional == 0
|
|
|
534 || ctx->conditional > cmd->conditional))
|
|
|
535 {
|
|
|
536 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
537 "invalid context of SSI command: \"%V\"",
|
|
|
538 &ctx->command);
|
|
|
539 goto ssi_error;
|
|
|
540 }
|
|
|
541
|
|
|
542 if (!ctx->output && cmd->conditional == 0) {
|
|
58
|
543 continue;
|
|
|
544 }
|
|
|
545
|
|
146
|
546 if (ctx->params.nelts > NGX_HTTP_SSI_MAX_PARAMS) {
|
|
|
547 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
548 "too many SSI command paramters: \"%V\"",
|
|
|
549 &ctx->command);
|
|
|
550 goto ssi_error;
|
|
|
551 }
|
|
|
552
|
|
46
|
553 ngx_memzero(params,
|
|
148
|
554 (NGX_HTTP_SSI_MAX_PARAMS + 1) * sizeof(ngx_str_t *));
|
|
46
|
555
|
|
|
556 param = ctx->params.elts;
|
|
|
557
|
|
|
558 for (i = 0; i < ctx->params.nelts; i++) {
|
|
|
559
|
|
|
560 for (prm = cmd->params; prm->name.len; prm++) {
|
|
|
561
|
|
|
562 if (param[i].key.len != prm->name.len
|
|
|
563 || ngx_strncmp(param[i].key.data, prm->name.data,
|
|
|
564 prm->name.len) != 0)
|
|
|
565 {
|
|
|
566 continue;
|
|
|
567 }
|
|
|
568
|
|
146
|
569 if (!prm->multiple) {
|
|
|
570 if (params[prm->index]) {
|
|
|
571 ngx_log_error(NGX_LOG_ERR,
|
|
|
572 r->connection->log, 0,
|
|
|
573 "duplicate \"%V\" parameter "
|
|
|
574 "in \"%V\" SSI command",
|
|
|
575 ¶m[i].key, &ctx->command);
|
|
|
576
|
|
|
577 goto ssi_error;
|
|
|
578 }
|
|
|
579
|
|
|
580 params[prm->index] = ¶m[i].value;
|
|
|
581
|
|
|
582 break;
|
|
46
|
583 }
|
|
|
584
|
|
146
|
585 for (index = prm->index; params[index]; index++) {
|
|
|
586 /* void */
|
|
|
587 }
|
|
|
588
|
|
|
589 params[index] = ¶m[i].value;
|
|
46
|
590
|
|
|
591 break;
|
|
|
592 }
|
|
|
593
|
|
|
594 if (prm->name.len == 0) {
|
|
|
595 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
596 "invalid parameter name: \"%V\" "
|
|
|
597 "in \"%V\" SSI command",
|
|
|
598 ¶m[i].key, &ctx->command);
|
|
|
599
|
|
|
600 goto ssi_error;
|
|
|
601 }
|
|
|
602 }
|
|
|
603
|
|
|
604 for (prm = cmd->params; prm->name.len; prm++) {
|
|
|
605 if (prm->mandatory && params[prm->index] == 0) {
|
|
|
606 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
607 "mandatory \"%V\" parameter is absent "
|
|
|
608 "in \"%V\" SSI command",
|
|
|
609 &prm->name, &ctx->command);
|
|
|
610
|
|
|
611 goto ssi_error;
|
|
|
612 }
|
|
|
613 }
|
|
|
614
|
|
58
|
615 if (cmd->flush && ctx->out) {
|
|
|
616 rc = ngx_http_ssi_output(r, ctx);
|
|
|
617
|
|
|
618 if (rc == NGX_ERROR) {
|
|
|
619 return NGX_ERROR;
|
|
|
620 }
|
|
|
621 }
|
|
|
622
|
|
118
|
623 c = r->connection;
|
|
|
624
|
|
|
625 rc = cmd->handler(r, ctx, params);
|
|
|
626
|
|
132
|
627 if (c->destroyed) {
|
|
118
|
628 return NGX_DONE;
|
|
|
629 }
|
|
|
630
|
|
|
631 if (rc == NGX_OK) {
|
|
46
|
632 continue;
|
|
|
633 }
|
|
132
|
634
|
|
|
635 if (rc == NGX_ERROR) {
|
|
|
636 return NGX_ERROR;
|
|
|
637 }
|
|
46
|
638 }
|
|
|
639
|
|
|
640
|
|
|
641 /* rc == NGX_HTTP_SSI_ERROR */
|
|
|
642
|
|
48
|
643 ssi_error:
|
|
46
|
644
|
|
146
|
645 if (slcf->silent_errors) {
|
|
46
|
646 continue;
|
|
|
647 }
|
|
|
648
|
|
48
|
649 if (ctx->free) {
|
|
|
650 cl = ctx->free;
|
|
|
651 ctx->free = ctx->free->next;
|
|
|
652 b = cl->buf;
|
|
|
653 ngx_memzero(b, sizeof(ngx_buf_t));
|
|
|
654
|
|
|
655 } else {
|
|
|
656 b = ngx_calloc_buf(r->pool);
|
|
|
657 if (b == NULL) {
|
|
|
658 return NGX_ERROR;
|
|
|
659 }
|
|
|
660
|
|
|
661 cl = ngx_alloc_chain_link(r->pool);
|
|
|
662 if (cl == NULL) {
|
|
|
663 return NGX_ERROR;
|
|
|
664 }
|
|
|
665
|
|
|
666 cl->buf = b;
|
|
46
|
667 }
|
|
|
668
|
|
|
669 b->memory = 1;
|
|
96
|
670 b->pos = ctx->errmsg.data;
|
|
|
671 b->last = ctx->errmsg.data + ctx->errmsg.len;
|
|
46
|
672
|
|
|
673 cl->next = NULL;
|
|
|
674 *ctx->last_out = cl;
|
|
|
675 ctx->last_out = &cl->next;
|
|
|
676
|
|
|
677 continue;
|
|
|
678 }
|
|
|
679
|
|
58
|
680 if (ctx->buf->last_buf || ctx->buf->recycled) {
|
|
48
|
681 if (b == NULL) {
|
|
|
682 if (ctx->free) {
|
|
|
683 cl = ctx->free;
|
|
|
684 ctx->free = ctx->free->next;
|
|
|
685 b = cl->buf;
|
|
|
686 ngx_memzero(b, sizeof(ngx_buf_t));
|
|
|
687
|
|
|
688 } else {
|
|
|
689 b = ngx_calloc_buf(r->pool);
|
|
|
690 if (b == NULL) {
|
|
|
691 return NGX_ERROR;
|
|
|
692 }
|
|
46
|
693
|
|
48
|
694 cl = ngx_alloc_chain_link(r->pool);
|
|
|
695 if (cl == NULL) {
|
|
|
696 return NGX_ERROR;
|
|
|
697 }
|
|
|
698
|
|
|
699 cl->buf = b;
|
|
|
700 }
|
|
|
701
|
|
58
|
702 b->sync = 1;
|
|
|
703
|
|
48
|
704 cl->next = NULL;
|
|
|
705 *ctx->last_out = cl;
|
|
|
706 ctx->last_out = &cl->next;
|
|
|
707 }
|
|
|
708
|
|
|
709 b->last_buf = ctx->buf->last_buf;
|
|
|
710 b->shadow = ctx->buf;
|
|
58
|
711
|
|
146
|
712 if (slcf->ignore_recycled_buffers == 0) {
|
|
58
|
713 b->recycled = ctx->buf->recycled;
|
|
|
714 }
|
|
46
|
715 }
|
|
|
716
|
|
48
|
717 ctx->buf = NULL;
|
|
|
718
|
|
46
|
719 ctx->saved = ctx->looked;
|
|
|
720 }
|
|
|
721
|
|
48
|
722 if (ctx->out == NULL && ctx->busy == NULL) {
|
|
46
|
723 return NGX_OK;
|
|
|
724 }
|
|
|
725
|
|
58
|
726 return ngx_http_ssi_output(r, ctx);
|
|
|
727 }
|
|
|
728
|
|
|
729
|
|
|
730 static ngx_int_t
|
|
|
731 ngx_http_ssi_output(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx)
|
|
|
732 {
|
|
|
733 ngx_int_t rc;
|
|
|
734 ngx_buf_t *b;
|
|
|
735 ngx_chain_t *cl;
|
|
|
736
|
|
190
|
737 #if 1
|
|
|
738 b = NULL;
|
|
|
739 for (cl = ctx->out; cl; cl = cl->next) {
|
|
|
740 if (cl->buf == b) {
|
|
|
741 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
|
|
|
742 "the same buf was used in ssi");
|
|
|
743 ngx_debug_point();
|
|
|
744 return NGX_ERROR;
|
|
|
745 }
|
|
|
746 b = cl->buf;
|
|
|
747 }
|
|
|
748 #endif
|
|
|
749
|
|
46
|
750 rc = ngx_http_next_body_filter(r, ctx->out);
|
|
|
751
|
|
48
|
752 if (ctx->busy == NULL) {
|
|
|
753 ctx->busy = ctx->out;
|
|
|
754
|
|
|
755 } else {
|
|
|
756 for (cl = ctx->busy; cl->next; cl = cl->next) { /* void */ }
|
|
|
757 cl->next = ctx->out;
|
|
|
758 }
|
|
|
759
|
|
46
|
760 ctx->out = NULL;
|
|
|
761 ctx->last_out = &ctx->out;
|
|
|
762
|
|
48
|
763 while (ctx->busy) {
|
|
|
764
|
|
|
765 b = ctx->busy->buf;
|
|
|
766
|
|
|
767 if (ngx_buf_size(b) != 0) {
|
|
|
768 break;
|
|
|
769 }
|
|
|
770
|
|
|
771 #if (NGX_HAVE_WRITE_ZEROCOPY)
|
|
|
772 if (b->zerocopy_busy) {
|
|
|
773 break;
|
|
|
774 }
|
|
|
775 #endif
|
|
|
776
|
|
|
777 if (b->shadow) {
|
|
|
778 b->shadow->pos = b->shadow->last;
|
|
|
779 }
|
|
|
780
|
|
|
781 cl = ctx->busy;
|
|
|
782 ctx->busy = cl->next;
|
|
|
783 cl->next = ctx->free;
|
|
|
784 ctx->free = cl;
|
|
|
785 }
|
|
|
786
|
|
46
|
787 return rc;
|
|
|
788 }
|
|
|
789
|
|
|
790
|
|
|
791 static ngx_int_t
|
|
|
792 ngx_http_ssi_parse(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx)
|
|
|
793 {
|
|
158
|
794 u_char *p, *value, *last, *copy_end, ch;
|
|
46
|
795 size_t looked;
|
|
|
796 ngx_http_ssi_state_e state;
|
|
|
797
|
|
|
798 state = ctx->state;
|
|
|
799 looked = ctx->looked;
|
|
|
800 last = ctx->buf->last;
|
|
|
801 copy_end = ctx->copy_end;
|
|
|
802
|
|
|
803 for (p = ctx->pos; p < last; p++) {
|
|
|
804
|
|
|
805 ch = *p;
|
|
|
806
|
|
|
807 if (state == ssi_start_state) {
|
|
|
808
|
|
|
809 /* the tight loop */
|
|
|
810
|
|
48
|
811 for ( ;; ) {
|
|
|
812 if (ch == '<') {
|
|
|
813 copy_end = p;
|
|
|
814 looked = 1;
|
|
|
815 state = ssi_tag_state;
|
|
|
816
|
|
|
817 goto tag_started;
|
|
46
|
818 }
|
|
|
819
|
|
48
|
820 if (++p == last) {
|
|
|
821 break;
|
|
|
822 }
|
|
46
|
823
|
|
48
|
824 ch = *p;
|
|
46
|
825 }
|
|
|
826
|
|
|
827 ctx->pos = p;
|
|
|
828 ctx->looked = looked;
|
|
|
829 ctx->copy_end = p;
|
|
|
830
|
|
|
831 if (ctx->copy_start == NULL) {
|
|
|
832 ctx->copy_start = ctx->buf->pos;
|
|
|
833 }
|
|
|
834
|
|
|
835 return NGX_AGAIN;
|
|
|
836
|
|
48
|
837 tag_started:
|
|
|
838
|
|
46
|
839 continue;
|
|
|
840 }
|
|
|
841
|
|
|
842 switch (state) {
|
|
|
843
|
|
|
844 case ssi_start_state:
|
|
|
845 break;
|
|
|
846
|
|
|
847 case ssi_tag_state:
|
|
|
848 switch (ch) {
|
|
|
849 case '!':
|
|
|
850 looked = 2;
|
|
|
851 state = ssi_comment0_state;
|
|
|
852 break;
|
|
|
853
|
|
|
854 case '<':
|
|
|
855 copy_end = p;
|
|
|
856 break;
|
|
|
857
|
|
|
858 default:
|
|
|
859 copy_end = p;
|
|
|
860 looked = 0;
|
|
|
861 state = ssi_start_state;
|
|
|
862 break;
|
|
|
863 }
|
|
|
864
|
|
|
865 break;
|
|
|
866
|
|
|
867 case ssi_comment0_state:
|
|
|
868 switch (ch) {
|
|
|
869 case '-':
|
|
|
870 looked = 3;
|
|
|
871 state = ssi_comment1_state;
|
|
|
872 break;
|
|
|
873
|
|
|
874 case '<':
|
|
|
875 copy_end = p;
|
|
|
876 looked = 1;
|
|
|
877 state = ssi_tag_state;
|
|
|
878 break;
|
|
|
879
|
|
|
880 default:
|
|
|
881 copy_end = p;
|
|
|
882 looked = 0;
|
|
|
883 state = ssi_start_state;
|
|
|
884 break;
|
|
|
885 }
|
|
|
886
|
|
|
887 break;
|
|
|
888
|
|
|
889 case ssi_comment1_state:
|
|
|
890 switch (ch) {
|
|
|
891 case '-':
|
|
|
892 looked = 4;
|
|
|
893 state = ssi_sharp_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_sharp_state:
|
|
|
912 switch (ch) {
|
|
|
913 case '#':
|
|
|
914 if (ctx->copy_start) {
|
|
|
915 ctx->saved = 0;
|
|
|
916 }
|
|
|
917 looked = 0;
|
|
|
918 state = ssi_precommand_state;
|
|
|
919 break;
|
|
|
920
|
|
|
921 case '<':
|
|
|
922 copy_end = p;
|
|
|
923 looked = 1;
|
|
|
924 state = ssi_tag_state;
|
|
|
925 break;
|
|
|
926
|
|
|
927 default:
|
|
|
928 copy_end = p;
|
|
|
929 looked = 0;
|
|
|
930 state = ssi_start_state;
|
|
|
931 break;
|
|
|
932 }
|
|
|
933
|
|
|
934 break;
|
|
|
935
|
|
|
936 case ssi_precommand_state:
|
|
|
937 switch (ch) {
|
|
|
938 case ' ':
|
|
|
939 case CR:
|
|
|
940 case LF:
|
|
|
941 case '\t':
|
|
|
942 break;
|
|
|
943
|
|
|
944 default:
|
|
|
945 ctx->command.len = 1;
|
|
|
946 ctx->command.data = ngx_palloc(r->pool,
|
|
158
|
947 NGX_HTTP_SSI_COMMAND_LEN);
|
|
46
|
948 if (ctx->command.data == NULL) {
|
|
|
949 return NGX_ERROR;
|
|
|
950 }
|
|
|
951
|
|
|
952 ctx->command.data[0] = ch;
|
|
158
|
953
|
|
146
|
954 ctx->key = 0;
|
|
|
955 ctx->key = ngx_hash(ctx->key, ch);
|
|
|
956
|
|
46
|
957 ctx->params.nelts = 0;
|
|
178
|
958
|
|
46
|
959 state = ssi_command_state;
|
|
|
960 break;
|
|
|
961 }
|
|
|
962
|
|
|
963 break;
|
|
|
964
|
|
|
965 case ssi_command_state:
|
|
|
966 switch (ch) {
|
|
|
967 case ' ':
|
|
|
968 case CR:
|
|
|
969 case LF:
|
|
|
970 case '\t':
|
|
|
971 state = ssi_preparam_state;
|
|
|
972 break;
|
|
|
973
|
|
|
974 case '-':
|
|
|
975 state = ssi_comment_end0_state;
|
|
|
976 break;
|
|
|
977
|
|
|
978 default:
|
|
|
979 if (ctx->command.len == NGX_HTTP_SSI_COMMAND_LEN) {
|
|
|
980 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
158
|
981 "the \"%V%c...\" SSI command is too long",
|
|
|
982 &ctx->command, ch);
|
|
46
|
983
|
|
|
984 state = ssi_error_state;
|
|
|
985 break;
|
|
|
986 }
|
|
158
|
987
|
|
|
988 ctx->command.data[ctx->command.len++] = ch;
|
|
|
989 ctx->key = ngx_hash(ctx->key, ch);
|
|
46
|
990 }
|
|
|
991
|
|
|
992 break;
|
|
|
993
|
|
|
994 case ssi_preparam_state:
|
|
|
995 switch (ch) {
|
|
|
996 case ' ':
|
|
|
997 case CR:
|
|
|
998 case LF:
|
|
|
999 case '\t':
|
|
|
1000 break;
|
|
|
1001
|
|
|
1002 case '-':
|
|
|
1003 state = ssi_comment_end0_state;
|
|
|
1004 break;
|
|
|
1005
|
|
|
1006 default:
|
|
48
|
1007 ctx->param = ngx_array_push(&ctx->params);
|
|
|
1008 if (ctx->param == NULL) {
|
|
46
|
1009 return NGX_ERROR;
|
|
|
1010 }
|
|
|
1011
|
|
|
1012 ctx->param->key.len = 1;
|
|
|
1013 ctx->param->key.data = ngx_palloc(r->pool,
|
|
158
|
1014 NGX_HTTP_SSI_PARAM_LEN);
|
|
46
|
1015 if (ctx->param->key.data == NULL) {
|
|
|
1016 return NGX_ERROR;
|
|
|
1017 }
|
|
|
1018
|
|
|
1019 ctx->param->key.data[0] = ch;
|
|
|
1020
|
|
|
1021 ctx->param->value.len = 0;
|
|
158
|
1022
|
|
|
1023 if (ctx->value_buf == NULL) {
|
|
|
1024 ctx->param->value.data = ngx_palloc(r->pool,
|
|
|
1025 ctx->value_len);
|
|
|
1026 if (ctx->param->value.data == NULL) {
|
|
|
1027 return NGX_ERROR;
|
|
|
1028 }
|
|
|
1029
|
|
|
1030 } else {
|
|
|
1031 ctx->param->value.data = ctx->value_buf;
|
|
46
|
1032 }
|
|
|
1033
|
|
|
1034 state = ssi_param_state;
|
|
|
1035 break;
|
|
|
1036 }
|
|
|
1037
|
|
|
1038 break;
|
|
|
1039
|
|
|
1040 case ssi_param_state:
|
|
|
1041 switch (ch) {
|
|
|
1042 case ' ':
|
|
|
1043 case CR:
|
|
|
1044 case LF:
|
|
|
1045 case '\t':
|
|
|
1046 state = ssi_preequal_state;
|
|
|
1047 break;
|
|
|
1048
|
|
|
1049 case '=':
|
|
|
1050 state = ssi_prevalue_state;
|
|
|
1051 break;
|
|
|
1052
|
|
|
1053 case '-':
|
|
|
1054 state = ssi_error_end0_state;
|
|
|
1055
|
|
|
1056 ctx->param->key.data[ctx->param->key.len++] = ch;
|
|
|
1057 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1058 "invalid \"%V\" parameter in \"%V\" SSI command",
|
|
|
1059 &ctx->param->key, &ctx->command);
|
|
|
1060 break;
|
|
|
1061
|
|
|
1062 default:
|
|
|
1063 if (ctx->param->key.len == NGX_HTTP_SSI_PARAM_LEN) {
|
|
|
1064 state = ssi_error_state;
|
|
|
1065 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
158
|
1066 "too long \"%V%c...\" parameter in "
|
|
46
|
1067 "\"%V\" SSI command",
|
|
158
|
1068 &ctx->param->key, ch, &ctx->command);
|
|
46
|
1069 break;
|
|
|
1070 }
|
|
158
|
1071
|
|
|
1072 ctx->param->key.data[ctx->param->key.len++] = ch;
|
|
46
|
1073 }
|
|
|
1074
|
|
|
1075 break;
|
|
|
1076
|
|
|
1077 case ssi_preequal_state:
|
|
|
1078 switch (ch) {
|
|
|
1079 case ' ':
|
|
|
1080 case CR:
|
|
|
1081 case LF:
|
|
|
1082 case '\t':
|
|
|
1083 break;
|
|
|
1084
|
|
|
1085 case '=':
|
|
|
1086 state = ssi_prevalue_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 after \"%V\" "
|
|
|
1098 "parameter in \"%V\" SSI command",
|
|
|
1099 ch, &ctx->param->key, &ctx->command);
|
|
|
1100 break;
|
|
|
1101 }
|
|
|
1102
|
|
|
1103 break;
|
|
|
1104
|
|
|
1105 case ssi_prevalue_state:
|
|
|
1106 switch (ch) {
|
|
|
1107 case ' ':
|
|
|
1108 case CR:
|
|
|
1109 case LF:
|
|
|
1110 case '\t':
|
|
|
1111 break;
|
|
|
1112
|
|
|
1113 case '"':
|
|
|
1114 state = ssi_double_quoted_value_state;
|
|
|
1115 break;
|
|
|
1116
|
|
|
1117 case '\'':
|
|
|
1118 state = ssi_quoted_value_state;
|
|
|
1119 break;
|
|
|
1120
|
|
|
1121 default:
|
|
|
1122 if (ch == '-') {
|
|
|
1123 state = ssi_error_end0_state;
|
|
|
1124 } else {
|
|
|
1125 state = ssi_error_state;
|
|
|
1126 }
|
|
|
1127
|
|
|
1128 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1129 "unexpected \"%c\" symbol before value of "
|
|
|
1130 "\"%V\" parameter in \"%V\" SSI command",
|
|
|
1131 ch, &ctx->param->key, &ctx->command);
|
|
|
1132 break;
|
|
|
1133 }
|
|
|
1134
|
|
|
1135 break;
|
|
|
1136
|
|
|
1137 case ssi_double_quoted_value_state:
|
|
|
1138 switch (ch) {
|
|
108
|
1139 case '"':
|
|
|
1140 state = ssi_postparam_state;
|
|
|
1141 break;
|
|
|
1142
|
|
46
|
1143 case '\\':
|
|
|
1144 ctx->saved_state = ssi_double_quoted_value_state;
|
|
|
1145 state = ssi_quoted_symbol_state;
|
|
108
|
1146
|
|
|
1147 /* fall through */
|
|
46
|
1148
|
|
|
1149 default:
|
|
|
1150 if (ctx->param->value.len == ctx->value_len) {
|
|
|
1151 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
158
|
1152 "too long \"%V%c...\" value of \"%V\" "
|
|
|
1153 "parameter in \"%V\" SSI command",
|
|
|
1154 &ctx->param->value, ch, &ctx->param->key,
|
|
46
|
1155 &ctx->command);
|
|
|
1156 state = ssi_error_state;
|
|
|
1157 break;
|
|
|
1158 }
|
|
158
|
1159
|
|
|
1160 ctx->param->value.data[ctx->param->value.len++] = ch;
|
|
46
|
1161 }
|
|
|
1162
|
|
|
1163 break;
|
|
|
1164
|
|
|
1165 case ssi_quoted_value_state:
|
|
|
1166 switch (ch) {
|
|
108
|
1167 case '\'':
|
|
|
1168 state = ssi_postparam_state;
|
|
|
1169 break;
|
|
|
1170
|
|
46
|
1171 case '\\':
|
|
|
1172 ctx->saved_state = ssi_quoted_value_state;
|
|
|
1173 state = ssi_quoted_symbol_state;
|
|
108
|
1174
|
|
|
1175 /* fall through */
|
|
46
|
1176
|
|
|
1177 default:
|
|
|
1178 if (ctx->param->value.len == ctx->value_len) {
|
|
|
1179 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
158
|
1180 "too long \"%V%c...\" value of \"%V\" "
|
|
|
1181 "parameter in \"%V\" SSI command",
|
|
|
1182 &ctx->param->value, ch, &ctx->param->key,
|
|
46
|
1183 &ctx->command);
|
|
|
1184 state = ssi_error_state;
|
|
|
1185 break;
|
|
|
1186 }
|
|
158
|
1187
|
|
|
1188 ctx->param->value.data[ctx->param->value.len++] = ch;
|
|
46
|
1189 }
|
|
|
1190
|
|
|
1191 break;
|
|
|
1192
|
|
|
1193 case ssi_quoted_symbol_state:
|
|
108
|
1194 state = ctx->saved_state;
|
|
|
1195
|
|
|
1196 if (ch == '\\') {
|
|
|
1197 break;
|
|
|
1198 }
|
|
|
1199
|
|
|
1200 if (ch == '"' && state == ssi_double_quoted_value_state) {
|
|
122
|
1201 ctx->param->value.data[ctx->param->value.len - 1] = ch;
|
|
108
|
1202 break;
|
|
|
1203 }
|
|
|
1204
|
|
|
1205 if (ch == '\'' && state == ssi_quoted_value_state) {
|
|
122
|
1206 ctx->param->value.data[ctx->param->value.len - 1] = ch;
|
|
108
|
1207 break;
|
|
|
1208 }
|
|
|
1209
|
|
158
|
1210 if (ctx->param->value.len == ctx->value_len) {
|
|
|
1211 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1212 "too long \"%V%c...\" value of \"%V\" "
|
|
|
1213 "parameter in \"%V\" SSI command",
|
|
|
1214 &ctx->param->value, ch, &ctx->param->key,
|
|
|
1215 &ctx->command);
|
|
|
1216 state = ssi_error_state;
|
|
|
1217 break;
|
|
|
1218 }
|
|
|
1219
|
|
46
|
1220 ctx->param->value.data[ctx->param->value.len++] = ch;
|
|
|
1221
|
|
|
1222 break;
|
|
|
1223
|
|
|
1224 case ssi_postparam_state:
|
|
158
|
1225
|
|
|
1226 if (ctx->param->value.len < ctx->value_len / 2) {
|
|
|
1227 value = ngx_palloc(r->pool, ctx->param->value.len);
|
|
|
1228 if (value == NULL) {
|
|
|
1229 return NGX_ERROR;
|
|
|
1230 }
|
|
|
1231
|
|
|
1232 ngx_memcpy(value, ctx->param->value.data,
|
|
|
1233 ctx->param->value.len);
|
|
|
1234
|
|
|
1235 ctx->value_buf = ctx->param->value.data;
|
|
|
1236 ctx->param->value.data = value;
|
|
|
1237
|
|
|
1238 } else {
|
|
|
1239 ctx->value_buf = NULL;
|
|
|
1240 }
|
|
|
1241
|
|
46
|
1242 switch (ch) {
|
|
|
1243 case ' ':
|
|
|
1244 case CR:
|
|
|
1245 case LF:
|
|
|
1246 case '\t':
|
|
|
1247 state = ssi_preparam_state;
|
|
|
1248 break;
|
|
|
1249
|
|
|
1250 case '-':
|
|
|
1251 state = ssi_comment_end0_state;
|
|
|
1252 break;
|
|
|
1253
|
|
|
1254 default:
|
|
|
1255 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1256 "unexpected \"%c\" symbol after \"%V\" value "
|
|
|
1257 "of \"%V\" parameter in \"%V\" SSI command",
|
|
|
1258 ch, &ctx->param->value, &ctx->param->key,
|
|
|
1259 &ctx->command);
|
|
|
1260 state = ssi_error_state;
|
|
|
1261 break;
|
|
|
1262 }
|
|
|
1263
|
|
|
1264 break;
|
|
|
1265
|
|
|
1266 case ssi_comment_end0_state:
|
|
|
1267 switch (ch) {
|
|
|
1268 case '-':
|
|
|
1269 state = ssi_comment_end1_state;
|
|
|
1270 break;
|
|
|
1271
|
|
|
1272 default:
|
|
|
1273 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1274 "unexpected \"%c\" symbol in \"%V\" SSI command",
|
|
|
1275 ch, &ctx->command);
|
|
|
1276 state = ssi_error_state;
|
|
|
1277 break;
|
|
|
1278 }
|
|
|
1279
|
|
|
1280 break;
|
|
|
1281
|
|
|
1282 case ssi_comment_end1_state:
|
|
|
1283 switch (ch) {
|
|
|
1284 case '>':
|
|
|
1285 ctx->state = ssi_start_state;
|
|
|
1286 ctx->pos = p + 1;
|
|
|
1287 ctx->looked = looked;
|
|
|
1288 ctx->copy_end = copy_end;
|
|
|
1289
|
|
|
1290 if (ctx->copy_start == NULL && copy_end) {
|
|
|
1291 ctx->copy_start = ctx->buf->pos;
|
|
|
1292 }
|
|
|
1293
|
|
|
1294 return NGX_OK;
|
|
|
1295
|
|
|
1296 default:
|
|
|
1297 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1298 "unexpected \"%c\" symbol in \"%V\" SSI command",
|
|
|
1299 ch, &ctx->command);
|
|
|
1300 state = ssi_error_state;
|
|
|
1301 break;
|
|
|
1302 }
|
|
|
1303
|
|
|
1304 break;
|
|
|
1305
|
|
|
1306 case ssi_error_state:
|
|
|
1307 switch (ch) {
|
|
|
1308 case '-':
|
|
|
1309 state = ssi_error_end0_state;
|
|
|
1310 break;
|
|
|
1311
|
|
|
1312 default:
|
|
|
1313 break;
|
|
|
1314 }
|
|
|
1315
|
|
|
1316 break;
|
|
|
1317
|
|
|
1318 case ssi_error_end0_state:
|
|
|
1319 switch (ch) {
|
|
|
1320 case '-':
|
|
|
1321 state = ssi_error_end1_state;
|
|
|
1322 break;
|
|
|
1323
|
|
|
1324 default:
|
|
|
1325 state = ssi_error_state;
|
|
|
1326 break;
|
|
|
1327 }
|
|
|
1328
|
|
|
1329 break;
|
|
|
1330
|
|
|
1331 case ssi_error_end1_state:
|
|
|
1332 switch (ch) {
|
|
|
1333 case '>':
|
|
|
1334 ctx->state = ssi_start_state;
|
|
|
1335 ctx->pos = p + 1;
|
|
|
1336 ctx->looked = looked;
|
|
|
1337 ctx->copy_end = copy_end;
|
|
|
1338
|
|
|
1339 if (ctx->copy_start == NULL && copy_end) {
|
|
|
1340 ctx->copy_start = ctx->buf->pos;
|
|
|
1341 }
|
|
|
1342
|
|
|
1343 return NGX_HTTP_SSI_ERROR;
|
|
|
1344
|
|
|
1345 default:
|
|
|
1346 state = ssi_error_state;
|
|
|
1347 break;
|
|
|
1348 }
|
|
|
1349
|
|
|
1350 break;
|
|
|
1351 }
|
|
|
1352 }
|
|
|
1353
|
|
|
1354 ctx->state = state;
|
|
|
1355 ctx->pos = p;
|
|
|
1356 ctx->looked = looked;
|
|
|
1357
|
|
|
1358 ctx->copy_end = (state == ssi_start_state) ? p : copy_end;
|
|
|
1359
|
|
|
1360 if (ctx->copy_start == NULL && ctx->copy_end) {
|
|
|
1361 ctx->copy_start = ctx->buf->pos;
|
|
|
1362 }
|
|
|
1363
|
|
|
1364 return NGX_AGAIN;
|
|
|
1365 }
|
|
|
1366
|
|
|
1367
|
|
102
|
1368 static ngx_str_t *
|
|
160
|
1369 ngx_http_ssi_get_variable(ngx_http_request_t *r, ngx_str_t *name,
|
|
|
1370 ngx_uint_t key)
|
|
102
|
1371 {
|
|
|
1372 ngx_uint_t i;
|
|
|
1373 ngx_http_ssi_var_t *var;
|
|
|
1374 ngx_http_ssi_ctx_t *ctx;
|
|
|
1375
|
|
|
1376 ctx = ngx_http_get_module_ctx(r->main, ngx_http_ssi_filter_module);
|
|
|
1377
|
|
|
1378 var = ctx->variables.elts;
|
|
|
1379 for (i = 0; i < ctx->variables.nelts; i++) {
|
|
|
1380 if (name->len != var[i].name.len) {
|
|
|
1381 continue;
|
|
|
1382 }
|
|
|
1383
|
|
160
|
1384 if (key != var[i].key) {
|
|
|
1385 continue;
|
|
|
1386 }
|
|
|
1387
|
|
|
1388 if (ngx_strncmp(name->data, var[i].name.data, name->len) == 0) {
|
|
102
|
1389 return &var[i].value;
|
|
|
1390 }
|
|
|
1391 }
|
|
|
1392
|
|
|
1393 return NULL;
|
|
|
1394 }
|
|
|
1395
|
|
|
1396
|
|
|
1397 static ngx_int_t
|
|
|
1398 ngx_http_ssi_evaluate_string(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
|
|
|
1399 ngx_str_t *text, ngx_uint_t flags)
|
|
|
1400 {
|
|
122
|
1401 u_char ch, *p, **value, *data, *part_data;
|
|
|
1402 size_t *size, len, prefix, part_len;
|
|
|
1403 ngx_str_t var, *val;
|
|
160
|
1404 ngx_int_t key;
|
|
102
|
1405 ngx_uint_t i, j, n, bracket;
|
|
|
1406 ngx_array_t lengths, values;
|
|
|
1407 ngx_http_variable_value_t *vv;
|
|
|
1408
|
|
|
1409 n = ngx_http_script_variables_count(text);
|
|
|
1410
|
|
|
1411 if (n == 0) {
|
|
|
1412
|
|
|
1413 if (!(flags & NGX_HTTP_SSI_ADD_PREFIX)) {
|
|
|
1414 return NGX_OK;
|
|
|
1415 }
|
|
|
1416
|
|
|
1417 if (text->data[0] != '/') {
|
|
|
1418 for (prefix = r->uri.len; prefix; prefix--) {
|
|
|
1419 if (r->uri.data[prefix - 1] == '/') {
|
|
|
1420 break;
|
|
|
1421 }
|
|
|
1422 }
|
|
|
1423
|
|
|
1424 if (prefix) {
|
|
|
1425 len = prefix + text->len;
|
|
|
1426
|
|
|
1427 data = ngx_palloc(r->pool, len);
|
|
|
1428 if (data == NULL) {
|
|
|
1429 return NGX_ERROR;
|
|
|
1430 }
|
|
|
1431
|
|
122
|
1432 p = ngx_copy(data, r->uri.data, prefix);
|
|
102
|
1433 ngx_memcpy(p, text->data, text->len);
|
|
|
1434
|
|
|
1435 text->len = len;
|
|
|
1436 text->data = data;
|
|
|
1437 }
|
|
|
1438 }
|
|
|
1439
|
|
|
1440 return NGX_OK;
|
|
|
1441 }
|
|
|
1442
|
|
|
1443 if (ngx_array_init(&lengths, r->pool, 8, sizeof(size_t *)) != NGX_OK) {
|
|
|
1444 return NGX_ERROR;
|
|
|
1445 }
|
|
|
1446
|
|
|
1447 if (ngx_array_init(&values, r->pool, 8, sizeof(u_char *)) != NGX_OK) {
|
|
|
1448 return NGX_ERROR;
|
|
|
1449 }
|
|
|
1450
|
|
|
1451 len = 0;
|
|
|
1452 i = 0;
|
|
|
1453
|
|
|
1454 while (i < text->len) {
|
|
|
1455
|
|
|
1456 if (text->data[i] == '$') {
|
|
|
1457
|
|
|
1458 var.len = 0;
|
|
|
1459
|
|
|
1460 if (++i == text->len) {
|
|
|
1461 goto invalid_variable;
|
|
|
1462 }
|
|
|
1463
|
|
|
1464 if (text->data[i] == '{') {
|
|
|
1465 bracket = 1;
|
|
|
1466
|
|
|
1467 if (++i == text->len) {
|
|
|
1468 goto invalid_variable;
|
|
|
1469 }
|
|
|
1470
|
|
|
1471 var.data = &text->data[i];
|
|
|
1472
|
|
|
1473 } else {
|
|
|
1474 bracket = 0;
|
|
|
1475 var.data = &text->data[i];
|
|
|
1476 }
|
|
|
1477
|
|
|
1478 for ( /* void */ ; i < text->len; i++, var.len++) {
|
|
|
1479 ch = text->data[i];
|
|
|
1480
|
|
|
1481 if (ch == '}' && bracket) {
|
|
|
1482 i++;
|
|
|
1483 bracket = 0;
|
|
|
1484 break;
|
|
|
1485 }
|
|
|
1486
|
|
|
1487 if ((ch >= 'A' && ch <= 'Z')
|
|
|
1488 || (ch >= 'a' && ch <= 'z')
|
|
|
1489 || (ch >= '0' && ch <= '9')
|
|
|
1490 || ch == '_')
|
|
|
1491 {
|
|
|
1492 continue;
|
|
|
1493 }
|
|
|
1494
|
|
|
1495 break;
|
|
|
1496 }
|
|
|
1497
|
|
|
1498 if (bracket) {
|
|
|
1499 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1500 "the closing bracket in \"%V\" "
|
|
|
1501 "variable is missing", &var);
|
|
|
1502 return NGX_ERROR;
|
|
|
1503 }
|
|
|
1504
|
|
126
|
1505 if (var.len == 0) {
|
|
102
|
1506 goto invalid_variable;
|
|
|
1507 }
|
|
|
1508
|
|
160
|
1509 key = 0;
|
|
|
1510
|
|
102
|
1511 for (j = 0; j < var.len; j++) {
|
|
|
1512 var.data[j] = ngx_tolower(var.data[j]);
|
|
160
|
1513 key = ngx_hash(key, var.data[j]);
|
|
102
|
1514 }
|
|
|
1515
|
|
160
|
1516 val = ngx_http_ssi_get_variable(r, &var, key);
|
|
102
|
1517
|
|
|
1518 if (val == NULL) {
|
|
184
|
1519 vv = ngx_http_get_variable(r, &var, key,
|
|
|
1520 flags & NGX_HTTP_SSI_EXPR_TEST);
|
|
102
|
1521 if (vv == NULL) {
|
|
|
1522 return NGX_ERROR;
|
|
|
1523 }
|
|
|
1524
|
|
122
|
1525 if (vv->not_found) {
|
|
102
|
1526 continue;
|
|
|
1527 }
|
|
|
1528
|
|
122
|
1529 part_data = vv->data;
|
|
|
1530 part_len = vv->len;
|
|
102
|
1531
|
|
|
1532 } else {
|
|
122
|
1533 part_data = val->data;
|
|
|
1534 part_len = val->len;
|
|
102
|
1535 }
|
|
|
1536
|
|
|
1537 } else {
|
|
122
|
1538 part_data = &text->data[i];
|
|
|
1539
|
|
|
1540 for (p = part_data; i < text->len; i++) {
|
|
108
|
1541 ch = text->data[i];
|
|
|
1542
|
|
|
1543 if (ch == '$') {
|
|
|
1544 if (text->data[i - 1] != '\\') {
|
|
|
1545 break;
|
|
|
1546 }
|
|
|
1547
|
|
|
1548 *(p - 1) = ch;
|
|
|
1549
|
|
|
1550 continue;
|
|
|
1551 }
|
|
|
1552
|
|
|
1553 *p++ = ch;
|
|
102
|
1554 }
|
|
108
|
1555
|
|
122
|
1556 part_len = p - part_data;
|
|
102
|
1557 }
|
|
|
1558
|
|
122
|
1559 len += part_len;
|
|
102
|
1560
|
|
|
1561 size = ngx_array_push(&lengths);
|
|
|
1562 if (size == NULL) {
|
|
|
1563 return NGX_ERROR;
|
|
|
1564 }
|
|
|
1565
|
|
122
|
1566 *size = part_len;
|
|
102
|
1567
|
|
|
1568 value = ngx_array_push(&values);
|
|
|
1569 if (value == NULL) {
|
|
|
1570 return NGX_ERROR;
|
|
|
1571 }
|
|
|
1572
|
|
122
|
1573 *value = part_data;
|
|
102
|
1574 }
|
|
|
1575
|
|
|
1576 prefix = 0;
|
|
|
1577
|
|
|
1578 size = lengths.elts;
|
|
|
1579 value = values.elts;
|
|
|
1580
|
|
|
1581 if (flags & NGX_HTTP_SSI_ADD_PREFIX) {
|
|
|
1582 for (i = 0; i < values.nelts; i++) {
|
|
|
1583 if (size[i] != 0) {
|
|
|
1584 if (*value[i] != '/') {
|
|
|
1585 for (prefix = r->uri.len; prefix; prefix--) {
|
|
|
1586 if (r->uri.data[prefix - 1] == '/') {
|
|
|
1587 len += prefix;
|
|
|
1588 break;
|
|
|
1589 }
|
|
|
1590 }
|
|
|
1591 }
|
|
|
1592
|
|
|
1593 break;
|
|
|
1594 }
|
|
|
1595 }
|
|
|
1596 }
|
|
|
1597
|
|
178
|
1598 p = ngx_palloc(r->pool, len + ((flags & NGX_HTTP_SSI_ADD_ZERO) ? 1 : 0));
|
|
102
|
1599 if (p == NULL) {
|
|
|
1600 return NGX_ERROR;
|
|
|
1601 }
|
|
|
1602
|
|
|
1603 text->len = len;
|
|
|
1604 text->data = p;
|
|
|
1605
|
|
122
|
1606 p = ngx_copy(p, r->uri.data, prefix);
|
|
102
|
1607
|
|
|
1608 for (i = 0; i < values.nelts; i++) {
|
|
122
|
1609 p = ngx_copy(p, value[i], size[i]);
|
|
102
|
1610 }
|
|
|
1611
|
|
|
1612 return NGX_OK;
|
|
|
1613
|
|
|
1614 invalid_variable:
|
|
|
1615
|
|
|
1616 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1617 "invalid variable name in \"%V\"", text);
|
|
|
1618
|
|
|
1619 return NGX_ERROR;
|
|
|
1620 }
|
|
|
1621
|
|
|
1622
|
|
|
1623 static ngx_int_t
|
|
|
1624 ngx_http_ssi_include(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
|
|
|
1625 ngx_str_t **params)
|
|
|
1626 {
|
|
|
1627 ngx_str_t *uri, *file, args;
|
|
122
|
1628 ngx_uint_t flags;
|
|
102
|
1629
|
|
|
1630 uri = params[NGX_HTTP_SSI_INCLUDE_VIRTUAL];
|
|
|
1631 file = params[NGX_HTTP_SSI_INCLUDE_FILE];
|
|
|
1632
|
|
|
1633 if (uri && file) {
|
|
|
1634 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1635 "inlcusion may be either virtual=\"%V\" or file=\"%V\"",
|
|
|
1636 uri, file);
|
|
|
1637 return NGX_HTTP_SSI_ERROR;
|
|
|
1638 }
|
|
|
1639
|
|
|
1640 if (uri == NULL && file == NULL) {
|
|
|
1641 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1642 "no parameter in \"include\" SSI command");
|
|
|
1643 return NGX_HTTP_SSI_ERROR;
|
|
|
1644 }
|
|
|
1645
|
|
|
1646 if (uri == NULL) {
|
|
|
1647 uri = file;
|
|
|
1648 }
|
|
|
1649
|
|
|
1650 if (ngx_http_ssi_evaluate_string(r, ctx, uri, NGX_HTTP_SSI_ADD_PREFIX)
|
|
|
1651 != NGX_OK)
|
|
|
1652 {
|
|
|
1653 return NGX_HTTP_SSI_ERROR;
|
|
|
1654 }
|
|
|
1655
|
|
|
1656 args.len = 0;
|
|
|
1657 args.data = NULL;
|
|
122
|
1658 flags = 0;
|
|
|
1659
|
|
|
1660 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1661 "ssi include: \"%V\"", uri);
|
|
|
1662
|
|
|
1663 if (ngx_http_parse_unsafe_uri(r, uri, &args, &flags) != NGX_OK) {
|
|
|
1664 return NGX_HTTP_SSI_ERROR;
|
|
102
|
1665 }
|
|
|
1666
|
|
122
|
1667 if (ngx_http_subrequest(r, uri, &args, flags) != NGX_OK) {
|
|
102
|
1668 return NGX_HTTP_SSI_ERROR;
|
|
|
1669 }
|
|
|
1670
|
|
|
1671 return NGX_OK;
|
|
|
1672 }
|
|
|
1673
|
|
|
1674
|
|
46
|
1675 static ngx_int_t
|
|
|
1676 ngx_http_ssi_echo(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
|
|
|
1677 ngx_str_t **params)
|
|
|
1678 {
|
|
160
|
1679 ngx_int_t key;
|
|
50
|
1680 ngx_uint_t i;
|
|
48
|
1681 ngx_buf_t *b;
|
|
122
|
1682 ngx_str_t *var, *value, text;
|
|
48
|
1683 ngx_chain_t *cl;
|
|
50
|
1684 ngx_http_variable_value_t *vv;
|
|
46
|
1685
|
|
|
1686 var = params[NGX_HTTP_SSI_ECHO_VAR];
|
|
|
1687
|
|
160
|
1688 key = 0;
|
|
|
1689
|
|
|
1690 for (i = 0; i < var->len; i++) {
|
|
|
1691 var->data[i] = ngx_tolower(var->data[i]);
|
|
|
1692 key = ngx_hash(key, var->data[i]);
|
|
|
1693 }
|
|
|
1694
|
|
|
1695 value = ngx_http_ssi_get_variable(r, var, key);
|
|
102
|
1696
|
|
|
1697 if (value == NULL) {
|
|
184
|
1698 vv = ngx_http_get_variable(r, var, key, 1);
|
|
102
|
1699
|
|
|
1700 if (vv == NULL) {
|
|
|
1701 return NGX_HTTP_SSI_ERROR;
|
|
|
1702 }
|
|
|
1703
|
|
122
|
1704 if (!vv->not_found) {
|
|
|
1705 text.data = vv->data;
|
|
|
1706 text.len = vv->len;
|
|
|
1707 value = &text;
|
|
102
|
1708 }
|
|
50
|
1709 }
|
|
46
|
1710
|
|
102
|
1711 if (value == NULL) {
|
|
48
|
1712 value = params[NGX_HTTP_SSI_ECHO_DEFAULT];
|
|
|
1713
|
|
|
1714 if (value == NULL) {
|
|
|
1715 value = &ngx_http_ssi_none;
|
|
|
1716
|
|
|
1717 } else if (value->len == 0) {
|
|
|
1718 return NGX_OK;
|
|
|
1719 }
|
|
|
1720
|
|
|
1721 } else {
|
|
|
1722 if (value->len == 0) {
|
|
|
1723 return NGX_OK;
|
|
|
1724 }
|
|
|
1725 }
|
|
|
1726
|
|
|
1727 b = ngx_calloc_buf(r->pool);
|
|
|
1728 if (b == NULL) {
|
|
|
1729 return NGX_HTTP_SSI_ERROR;
|
|
|
1730 }
|
|
|
1731
|
|
|
1732 cl = ngx_alloc_chain_link(r->pool);
|
|
|
1733 if (cl == NULL) {
|
|
46
|
1734 return NGX_HTTP_SSI_ERROR;
|
|
|
1735 }
|
|
|
1736
|
|
|
1737 b->memory = 1;
|
|
|
1738 b->pos = value->data;
|
|
|
1739 b->last = value->data + value->len;
|
|
|
1740
|
|
|
1741 cl->buf = b;
|
|
|
1742 cl->next = NULL;
|
|
|
1743 *ctx->last_out = cl;
|
|
|
1744 ctx->last_out = &cl->next;
|
|
|
1745
|
|
|
1746 return NGX_OK;
|
|
|
1747 }
|
|
|
1748
|
|
|
1749
|
|
58
|
1750 static ngx_int_t
|
|
|
1751 ngx_http_ssi_config(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
|
|
|
1752 ngx_str_t **params)
|
|
|
1753 {
|
|
|
1754 ngx_str_t *value;
|
|
|
1755
|
|
|
1756 value = params[NGX_HTTP_SSI_CONFIG_TIMEFMT];
|
|
|
1757
|
|
|
1758 if (value) {
|
|
138
|
1759 ctx->timefmt.len = value->len;
|
|
|
1760 ctx->timefmt.data = ngx_palloc(r->pool, value->len + 1);
|
|
|
1761 if (ctx->timefmt.data == NULL) {
|
|
|
1762 return NGX_HTTP_SSI_ERROR;
|
|
|
1763 }
|
|
|
1764
|
|
|
1765 ngx_cpystrn(ctx->timefmt.data, value->data, value->len + 1);
|
|
58
|
1766 }
|
|
|
1767
|
|
96
|
1768 value = params[NGX_HTTP_SSI_CONFIG_ERRMSG];
|
|
|
1769
|
|
|
1770 if (value) {
|
|
|
1771 ctx->errmsg = *value;
|
|
|
1772 }
|
|
|
1773
|
|
58
|
1774 return NGX_OK;
|
|
|
1775 }
|
|
|
1776
|
|
|
1777
|
|
|
1778 static ngx_int_t
|
|
102
|
1779 ngx_http_ssi_set(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
|
|
58
|
1780 ngx_str_t **params)
|
|
|
1781 {
|
|
160
|
1782 ngx_int_t key;
|
|
|
1783 ngx_uint_t i;
|
|
102
|
1784 ngx_str_t *name, *value, *vv;
|
|
|
1785 ngx_http_ssi_var_t *var;
|
|
|
1786 ngx_http_ssi_ctx_t *mctx;
|
|
|
1787
|
|
|
1788 mctx = ngx_http_get_module_ctx(r->main, ngx_http_ssi_filter_module);
|
|
|
1789
|
|
|
1790 if (mctx->variables.elts == NULL) {
|
|
|
1791 if (ngx_array_init(&mctx->variables, r->pool, 4,
|
|
|
1792 sizeof(ngx_http_ssi_var_t)) != NGX_OK)
|
|
|
1793 {
|
|
58
|
1794 return NGX_HTTP_SSI_ERROR;
|
|
|
1795 }
|
|
|
1796 }
|
|
|
1797
|
|
102
|
1798 name = params[NGX_HTTP_SSI_SET_VAR];
|
|
|
1799 value = params[NGX_HTTP_SSI_SET_VALUE];
|
|
|
1800
|
|
|
1801 if (ngx_http_ssi_evaluate_string(r, ctx, value, 0) != NGX_OK) {
|
|
58
|
1802 return NGX_HTTP_SSI_ERROR;
|
|
|
1803 }
|
|
|
1804
|
|
160
|
1805 key = 0;
|
|
|
1806
|
|
|
1807 for (i = 0; i < name->len; i++) {
|
|
|
1808 name->data[i] = ngx_tolower(name->data[i]);
|
|
|
1809 key = ngx_hash(key, name->data[i]);
|
|
|
1810 }
|
|
|
1811
|
|
|
1812 vv = ngx_http_ssi_get_variable(r, name, key);
|
|
102
|
1813
|
|
|
1814 if (vv) {
|
|
|
1815 *vv = *value;
|
|
|
1816 return NGX_OK;
|
|
|
1817 }
|
|
|
1818
|
|
|
1819 var = ngx_array_push(&mctx->variables);
|
|
|
1820 if (var == NULL) {
|
|
|
1821 return NGX_HTTP_SSI_ERROR;
|
|
|
1822 }
|
|
|
1823
|
|
|
1824 var->name = *name;
|
|
160
|
1825 var->key = key;
|
|
102
|
1826 var->value = *value;
|
|
|
1827
|
|
|
1828 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1829 "set: \"%V\"=\"%V\"", name, value);
|
|
|
1830
|
|
58
|
1831 return NGX_OK;
|
|
|
1832 }
|
|
|
1833
|
|
|
1834
|
|
|
1835 static ngx_int_t
|
|
|
1836 ngx_http_ssi_if(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
|
|
|
1837 ngx_str_t **params)
|
|
|
1838 {
|
|
102
|
1839 u_char *p, *last;
|
|
|
1840 ngx_str_t *expr, left, right;
|
|
|
1841 ngx_int_t rc;
|
|
178
|
1842 ngx_uint_t negative, noregex, flags;
|
|
100
|
1843 #if (NGX_PCRE)
|
|
102
|
1844 ngx_str_t err;
|
|
|
1845 ngx_regex_t *regex;
|
|
|
1846 u_char errstr[NGX_MAX_CONF_ERRSTR];
|
|
100
|
1847 #endif
|
|
58
|
1848
|
|
178
|
1849 if (ctx->command.len == 2) {
|
|
|
1850 if (ctx->conditional) {
|
|
|
1851 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1852 "the \"if\" command inside the \"if\" command");
|
|
|
1853 return NGX_HTTP_SSI_ERROR;
|
|
|
1854 }
|
|
|
1855 }
|
|
|
1856
|
|
|
1857 if (ctx->output_chosen) {
|
|
|
1858 ctx->output = 0;
|
|
|
1859 return NGX_OK;
|
|
|
1860 }
|
|
|
1861
|
|
58
|
1862 expr = params[NGX_HTTP_SSI_IF_EXPR];
|
|
|
1863
|
|
102
|
1864 left.data = expr->data;
|
|
100
|
1865 last = expr->data + expr->len;
|
|
|
1866
|
|
102
|
1867 for (p = left.data; p < last; p++) {
|
|
100
|
1868 if (*p >= 'A' && *p <= 'Z') {
|
|
|
1869 *p |= 0x20;
|
|
|
1870 continue;
|
|
|
1871 }
|
|
58
|
1872
|
|
102
|
1873 if ((*p >= 'a' && *p <= 'z')
|
|
|
1874 || (*p >= '0' && *p <= '9')
|
|
122
|
1875 || *p == '$' || *p == '{' || *p == '}' || *p == '_'
|
|
|
1876 || *p == '"' || *p == '\'')
|
|
102
|
1877 {
|
|
100
|
1878 continue;
|
|
|
1879 }
|
|
|
1880
|
|
|
1881 break;
|
|
|
1882 }
|
|
|
1883
|
|
102
|
1884 left.len = p - left.data;
|
|
100
|
1885
|
|
|
1886 while (p < last && *p == ' ') {
|
|
|
1887 p++;
|
|
58
|
1888 }
|
|
|
1889
|
|
184
|
1890 flags = (p == last) ? NGX_HTTP_SSI_EXPR_TEST : 0;
|
|
|
1891
|
|
102
|
1892 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1893 "left: \"%V\"", &left);
|
|
|
1894
|
|
184
|
1895 if (ngx_http_ssi_evaluate_string(r, ctx, &left, flags) != NGX_OK) {
|
|
58
|
1896 return NGX_HTTP_SSI_ERROR;
|
|
|
1897 }
|
|
|
1898
|
|
102
|
1899 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1900 "evaluted left: \"%V\"", &left);
|
|
|
1901
|
|
100
|
1902 if (p == last) {
|
|
102
|
1903 if (left.len) {
|
|
100
|
1904 ctx->output = 1;
|
|
178
|
1905 ctx->output_chosen = 1;
|
|
100
|
1906
|
|
|
1907 } else {
|
|
|
1908 ctx->output = 0;
|
|
|
1909 }
|
|
|
1910
|
|
178
|
1911 ctx->conditional = NGX_HTTP_SSI_COND_IF;
|
|
|
1912
|
|
100
|
1913 return NGX_OK;
|
|
|
1914 }
|
|
|
1915
|
|
|
1916 if (p < last && *p == '=') {
|
|
|
1917 negative = 0;
|
|
|
1918 p++;
|
|
|
1919
|
|
|
1920 } else if (p + 1 < last && *p == '!' && *(p + 1) == '=') {
|
|
|
1921 negative = 1;
|
|
|
1922 p += 2;
|
|
|
1923
|
|
|
1924 } else {
|
|
|
1925 goto invalid_expression;
|
|
|
1926 }
|
|
|
1927
|
|
|
1928 while (p < last && *p == ' ') {
|
|
|
1929 p++;
|
|
|
1930 }
|
|
|
1931
|
|
|
1932 if (p < last && *p == '/') {
|
|
|
1933 if (*(last - 1) != '/') {
|
|
|
1934 goto invalid_expression;
|
|
|
1935 }
|
|
|
1936
|
|
|
1937 noregex = 0;
|
|
178
|
1938 flags = NGX_HTTP_SSI_ADD_ZERO;
|
|
100
|
1939 last--;
|
|
|
1940 p++;
|
|
|
1941
|
|
|
1942 } else {
|
|
|
1943 noregex = 1;
|
|
178
|
1944 flags = 0;
|
|
|
1945
|
|
|
1946 if (p < last - 1 && p[0] == '\\' && p[1] == '/') {
|
|
|
1947 p++;
|
|
|
1948 }
|
|
100
|
1949 }
|
|
|
1950
|
|
|
1951 right.len = last - p;
|
|
|
1952 right.data = p;
|
|
|
1953
|
|
102
|
1954 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1955 "right: \"%V\"", &right);
|
|
|
1956
|
|
178
|
1957 if (ngx_http_ssi_evaluate_string(r, ctx, &right, flags) != NGX_OK) {
|
|
102
|
1958 return NGX_HTTP_SSI_ERROR;
|
|
100
|
1959 }
|
|
|
1960
|
|
102
|
1961 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1962 "evaluted right: \"%V\"", &right);
|
|
100
|
1963
|
|
|
1964 if (noregex) {
|
|
|
1965 if (left.len != right.len) {
|
|
|
1966 rc = -1;
|
|
|
1967
|
|
|
1968 } else {
|
|
|
1969 rc = ngx_strncmp(left.data, right.data, right.len);
|
|
|
1970 }
|
|
|
1971
|
|
|
1972 } else {
|
|
|
1973 #if (NGX_PCRE)
|
|
|
1974 err.len = NGX_MAX_CONF_ERRSTR;
|
|
|
1975 err.data = errstr;
|
|
|
1976
|
|
|
1977 right.data[right.len] = '\0';
|
|
|
1978
|
|
|
1979 regex = ngx_regex_compile(&right, 0, r->pool, &err);
|
|
|
1980
|
|
|
1981 if (regex == NULL) {
|
|
|
1982 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "%s", err.data);
|
|
|
1983 return NGX_HTTP_SSI_ERROR;
|
|
|
1984 }
|
|
|
1985
|
|
|
1986 rc = ngx_regex_exec(regex, &left, NULL, 0);
|
|
|
1987
|
|
|
1988 if (rc != NGX_REGEX_NO_MATCHED && rc < 0) {
|
|
|
1989 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
|
|
|
1990 ngx_regex_exec_n " failed: %d on \"%V\" using \"%V\"",
|
|
|
1991 rc, &left, &right);
|
|
|
1992 return NGX_HTTP_SSI_ERROR;
|
|
|
1993 }
|
|
|
1994 #else
|
|
|
1995 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
|
|
|
1996 "the using of the regex \"%V\" in SSI "
|
|
|
1997 "requires PCRE library", &right);
|
|
|
1998
|
|
|
1999 return NGX_HTTP_SSI_ERROR;
|
|
|
2000 #endif
|
|
|
2001 }
|
|
|
2002
|
|
|
2003 if ((rc == 0 && !negative) || (rc != 0 && negative)) {
|
|
58
|
2004 ctx->output = 1;
|
|
178
|
2005 ctx->output_chosen = 1;
|
|
58
|
2006
|
|
|
2007 } else {
|
|
|
2008 ctx->output = 0;
|
|
|
2009 }
|
|
|
2010
|
|
178
|
2011 ctx->conditional = NGX_HTTP_SSI_COND_IF;
|
|
|
2012
|
|
58
|
2013 return NGX_OK;
|
|
100
|
2014
|
|
|
2015 invalid_expression:
|
|
|
2016
|
|
|
2017 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
2018 "invalid expression in \"%V\"", expr);
|
|
|
2019
|
|
|
2020 return NGX_HTTP_SSI_ERROR;
|
|
58
|
2021 }
|
|
|
2022
|
|
|
2023
|
|
|
2024 static ngx_int_t
|
|
|
2025 ngx_http_ssi_else(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
|
|
|
2026 ngx_str_t **params)
|
|
|
2027 {
|
|
178
|
2028 if (ctx->output_chosen) {
|
|
|
2029 ctx->output = 0;
|
|
|
2030 } else {
|
|
|
2031 ctx->output = 1;
|
|
|
2032 }
|
|
|
2033
|
|
|
2034 ctx->conditional = NGX_HTTP_SSI_COND_ELSE;
|
|
58
|
2035
|
|
|
2036 return NGX_OK;
|
|
|
2037 }
|
|
|
2038
|
|
|
2039
|
|
|
2040 static ngx_int_t
|
|
|
2041 ngx_http_ssi_endif(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
|
|
|
2042 ngx_str_t **params)
|
|
|
2043 {
|
|
|
2044 ctx->output = 1;
|
|
178
|
2045 ctx->output_chosen = 0;
|
|
|
2046 ctx->conditional = 0;
|
|
58
|
2047
|
|
|
2048 return NGX_OK;
|
|
|
2049 }
|
|
|
2050
|
|
|
2051
|
|
122
|
2052 static ngx_int_t
|
|
|
2053 ngx_http_ssi_date_gmt_local_variable(ngx_http_request_t *r,
|
|
|
2054 ngx_http_variable_value_t *v, uintptr_t gmt)
|
|
58
|
2055 {
|
|
122
|
2056 ngx_http_ssi_ctx_t *ctx;
|
|
|
2057 ngx_time_t *tp;
|
|
|
2058 struct tm tm;
|
|
|
2059 char buf[NGX_HTTP_SSI_DATE_LEN];
|
|
|
2060
|
|
126
|
2061 v->valid = 1;
|
|
122
|
2062 v->no_cachable = 0;
|
|
|
2063 v->not_found = 0;
|
|
58
|
2064
|
|
112
|
2065 tp = ngx_timeofday();
|
|
|
2066
|
|
58
|
2067 ctx = ngx_http_get_module_ctx(r, ngx_http_ssi_filter_module);
|
|
|
2068
|
|
|
2069 if (ctx->timefmt.len == sizeof("%s") - 1
|
|
|
2070 && ctx->timefmt.data[0] == '%' && ctx->timefmt.data[1] == 's')
|
|
|
2071 {
|
|
122
|
2072 v->data = ngx_palloc(r->pool, NGX_TIME_T_LEN);
|
|
|
2073 if (v->data == NULL) {
|
|
|
2074 return NGX_ERROR;
|
|
58
|
2075 }
|
|
|
2076
|
|
122
|
2077 v->len = ngx_sprintf(v->data, "%T", tp->sec + (gmt ? 0 : tp->gmtoff))
|
|
|
2078 - v->data;
|
|
|
2079 return NGX_OK;
|
|
58
|
2080 }
|
|
|
2081
|
|
|
2082 if (gmt) {
|
|
112
|
2083 ngx_libc_gmtime(tp->sec, &tm);
|
|
58
|
2084 } else {
|
|
112
|
2085 ngx_libc_localtime(tp->sec, &tm);
|
|
58
|
2086 }
|
|
|
2087
|
|
122
|
2088 v->len = strftime(buf, NGX_HTTP_SSI_DATE_LEN,
|
|
|
2089 (char *) ctx->timefmt.data, &tm);
|
|
|
2090 if (v->len == 0) {
|
|
|
2091 return NGX_ERROR;
|
|
58
|
2092 }
|
|
|
2093
|
|
122
|
2094 v->data = ngx_palloc(r->pool, v->len);
|
|
|
2095 if (v->data == NULL) {
|
|
|
2096 return NGX_ERROR;
|
|
58
|
2097 }
|
|
|
2098
|
|
122
|
2099 ngx_memcpy(v->data, buf, v->len);
|
|
|
2100
|
|
|
2101 return NGX_OK;
|
|
58
|
2102 }
|
|
|
2103
|
|
|
2104
|
|
76
|
2105 static char *
|
|
|
2106 ngx_http_ssi_types(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
2107 {
|
|
146
|
2108 ngx_http_ssi_loc_conf_t *slcf = conf;
|
|
76
|
2109
|
|
|
2110 ngx_str_t *value, *type;
|
|
|
2111 ngx_uint_t i;
|
|
|
2112
|
|
146
|
2113 if (slcf->types == NULL) {
|
|
|
2114 slcf->types = ngx_array_create(cf->pool, 4, sizeof(ngx_str_t));
|
|
|
2115 if (slcf->types == NULL) {
|
|
76
|
2116 return NGX_CONF_ERROR;
|
|
|
2117 }
|
|
|
2118
|
|
146
|
2119 type = ngx_array_push(slcf->types);
|
|
76
|
2120 if (type == NULL) {
|
|
|
2121 return NGX_CONF_ERROR;
|
|
|
2122 }
|
|
|
2123
|
|
|
2124 type->len = sizeof("text/html") - 1;
|
|
|
2125 type->data = (u_char *) "text/html";
|
|
|
2126 }
|
|
|
2127
|
|
|
2128 value = cf->args->elts;
|
|
|
2129
|
|
|
2130 for (i = 1; i < cf->args->nelts; i++) {
|
|
|
2131
|
|
|
2132 if (ngx_strcmp(value[i].data, "text/html") == 0) {
|
|
|
2133 continue;
|
|
|
2134 }
|
|
|
2135
|
|
146
|
2136 type = ngx_array_push(slcf->types);
|
|
76
|
2137 if (type == NULL) {
|
|
|
2138 return NGX_CONF_ERROR;
|
|
|
2139 }
|
|
|
2140
|
|
|
2141 type->len = value[i].len;
|
|
|
2142
|
|
|
2143 type->data = ngx_palloc(cf->pool, type->len + 1);
|
|
|
2144 if (type->data == NULL) {
|
|
|
2145 return NGX_CONF_ERROR;
|
|
|
2146 }
|
|
|
2147
|
|
|
2148 ngx_cpystrn(type->data, value[i].data, type->len + 1);
|
|
|
2149 }
|
|
|
2150
|
|
|
2151 return NGX_CONF_OK;
|
|
|
2152 }
|
|
|
2153
|
|
|
2154
|
|
58
|
2155 static ngx_int_t
|
|
146
|
2156 ngx_http_ssi_preconfiguration(ngx_conf_t *cf)
|
|
58
|
2157 {
|
|
146
|
2158 ngx_int_t rc;
|
|
|
2159 ngx_http_variable_t *var, *v;
|
|
|
2160 ngx_http_ssi_command_t *cmd;
|
|
|
2161 ngx_http_ssi_main_conf_t *smcf;
|
|
58
|
2162
|
|
|
2163 for (v = ngx_http_ssi_vars; v->name.len; v++) {
|
|
|
2164 var = ngx_http_add_variable(cf, &v->name, v->flags);
|
|
|
2165 if (var == NULL) {
|
|
|
2166 return NGX_ERROR;
|
|
|
2167 }
|
|
|
2168
|
|
186
|
2169 var->get_handler = v->get_handler;
|
|
58
|
2170 var->data = v->data;
|
|
|
2171 }
|
|
|
2172
|
|
146
|
2173 smcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_ssi_filter_module);
|
|
|
2174
|
|
|
2175 for (cmd = ngx_http_ssi_commands; cmd->name.len; cmd++) {
|
|
|
2176 rc = ngx_hash_add_key(&smcf->commands, &cmd->name, cmd,
|
|
|
2177 NGX_HASH_READONLY_KEY);
|
|
|
2178
|
|
|
2179 if (rc == NGX_OK) {
|
|
|
2180 continue;
|
|
|
2181 }
|
|
|
2182
|
|
|
2183 if (rc == NGX_BUSY) {
|
|
|
2184 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
2185 "conflicting SSI command \"%V\"", &cmd->name);
|
|
|
2186 }
|
|
|
2187
|
|
|
2188 return NGX_ERROR;
|
|
|
2189 }
|
|
|
2190
|
|
126
|
2191 return NGX_OK;
|
|
58
|
2192 }
|
|
|
2193
|
|
|
2194
|
|
46
|
2195 static void *
|
|
146
|
2196 ngx_http_ssi_create_main_conf(ngx_conf_t *cf)
|
|
|
2197 {
|
|
|
2198 ngx_http_ssi_main_conf_t *smcf;
|
|
|
2199
|
|
|
2200 smcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_ssi_main_conf_t));
|
|
|
2201 if (smcf == NULL) {
|
|
|
2202 return NGX_CONF_ERROR;
|
|
|
2203 }
|
|
|
2204
|
|
|
2205 smcf->commands.pool = cf->pool;
|
|
|
2206 smcf->commands.temp_pool = cf->temp_pool;
|
|
|
2207
|
|
|
2208 if (ngx_hash_keys_array_init(&smcf->commands, NGX_HASH_SMALL) != NGX_OK) {
|
|
|
2209 return NGX_CONF_ERROR;
|
|
|
2210 }
|
|
|
2211
|
|
|
2212 return smcf;
|
|
|
2213 }
|
|
|
2214
|
|
|
2215
|
|
|
2216 static char *
|
|
|
2217 ngx_http_ssi_init_main_conf(ngx_conf_t *cf, void *conf)
|
|
|
2218 {
|
|
|
2219 ngx_http_ssi_main_conf_t *smcf = conf;
|
|
|
2220
|
|
|
2221 ngx_hash_init_t hash;
|
|
|
2222
|
|
|
2223 hash.hash = &smcf->hash;
|
|
|
2224 hash.key = ngx_hash_key;
|
|
|
2225 hash.max_size = 1024;
|
|
|
2226 hash.bucket_size = ngx_cacheline_size;
|
|
|
2227 hash.name = "ssi_command_hash";
|
|
|
2228 hash.pool = cf->pool;
|
|
|
2229 hash.temp_pool = NULL;
|
|
|
2230
|
|
|
2231 if (ngx_hash_init(&hash, smcf->commands.keys.elts,
|
|
|
2232 smcf->commands.keys.nelts)
|
|
|
2233 != NGX_OK)
|
|
|
2234 {
|
|
|
2235 return NGX_CONF_ERROR;
|
|
|
2236 }
|
|
|
2237
|
|
|
2238 return NGX_CONF_OK;
|
|
|
2239 }
|
|
|
2240
|
|
|
2241
|
|
|
2242 static void *
|
|
46
|
2243 ngx_http_ssi_create_conf(ngx_conf_t *cf)
|
|
|
2244 {
|
|
146
|
2245 ngx_http_ssi_loc_conf_t *slcf;
|
|
|
2246
|
|
|
2247 slcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_ssi_loc_conf_t));
|
|
|
2248 if (slcf == NULL) {
|
|
46
|
2249 return NGX_CONF_ERROR;
|
|
|
2250 }
|
|
|
2251
|
|
76
|
2252 /*
|
|
|
2253 * set by ngx_pcalloc():
|
|
|
2254 *
|
|
|
2255 * conf->types = NULL;
|
|
|
2256 */
|
|
|
2257
|
|
146
|
2258 slcf->enable = NGX_CONF_UNSET;
|
|
|
2259 slcf->silent_errors = NGX_CONF_UNSET;
|
|
|
2260 slcf->ignore_recycled_buffers = NGX_CONF_UNSET;
|
|
|
2261
|
|
|
2262 slcf->min_file_chunk = NGX_CONF_UNSET_SIZE;
|
|
|
2263 slcf->value_len = NGX_CONF_UNSET_SIZE;
|
|
|
2264
|
|
|
2265 return slcf;
|
|
46
|
2266 }
|
|
|
2267
|
|
|
2268
|
|
|
2269 static char *
|
|
|
2270 ngx_http_ssi_merge_conf(ngx_conf_t *cf, void *parent, void *child)
|
|
|
2271 {
|
|
146
|
2272 ngx_http_ssi_loc_conf_t *prev = parent;
|
|
|
2273 ngx_http_ssi_loc_conf_t *conf = child;
|
|
46
|
2274
|
|
76
|
2275 ngx_str_t *type;
|
|
|
2276
|
|
46
|
2277 ngx_conf_merge_value(conf->enable, prev->enable, 0);
|
|
|
2278 ngx_conf_merge_value(conf->silent_errors, prev->silent_errors, 0);
|
|
58
|
2279 ngx_conf_merge_value(conf->ignore_recycled_buffers,
|
|
|
2280 prev->ignore_recycled_buffers, 0);
|
|
46
|
2281
|
|
|
2282 ngx_conf_merge_size_value(conf->min_file_chunk, prev->min_file_chunk, 1024);
|
|
|
2283 ngx_conf_merge_size_value(conf->value_len, prev->value_len, 256);
|
|
|
2284
|
|
76
|
2285 if (conf->types == NULL) {
|
|
|
2286 if (prev->types == NULL) {
|
|
|
2287 conf->types = ngx_array_create(cf->pool, 1, sizeof(ngx_str_t));
|
|
|
2288 if (conf->types == NULL) {
|
|
|
2289 return NGX_CONF_ERROR;
|
|
|
2290 }
|
|
|
2291
|
|
|
2292 type = ngx_array_push(conf->types);
|
|
|
2293 if (type == NULL) {
|
|
|
2294 return NGX_CONF_ERROR;
|
|
|
2295 }
|
|
|
2296
|
|
|
2297 type->len = sizeof("text/html") - 1;
|
|
|
2298 type->data = (u_char *) "text/html";
|
|
|
2299
|
|
|
2300 } else {
|
|
|
2301 conf->types = prev->types;
|
|
|
2302 }
|
|
|
2303 }
|
|
|
2304
|
|
46
|
2305 return NGX_CONF_OK;
|
|
|
2306 }
|
|
|
2307
|
|
|
2308
|
|
|
2309 static ngx_int_t
|
|
|
2310 ngx_http_ssi_filter_init(ngx_cycle_t *cycle)
|
|
|
2311 {
|
|
|
2312 ngx_http_next_header_filter = ngx_http_top_header_filter;
|
|
|
2313 ngx_http_top_header_filter = ngx_http_ssi_header_filter;
|
|
|
2314
|
|
|
2315 ngx_http_next_body_filter = ngx_http_top_body_filter;
|
|
|
2316 ngx_http_top_body_filter = ngx_http_ssi_body_filter;
|
|
|
2317
|
|
|
2318 return NGX_OK;
|
|
|
2319 }
|
