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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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194
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191 #define NGX_HTTP_SSI_INCLUDE_WAIT 2
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46
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192
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58
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193 #define NGX_HTTP_SSI_ECHO_VAR 0
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194 #define NGX_HTTP_SSI_ECHO_DEFAULT 1
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195
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96
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196 #define NGX_HTTP_SSI_CONFIG_ERRMSG 0
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197 #define NGX_HTTP_SSI_CONFIG_TIMEFMT 1
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58
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198
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102
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199 #define NGX_HTTP_SSI_SET_VAR 0
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200 #define NGX_HTTP_SSI_SET_VALUE 1
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58
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201
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202 #define NGX_HTTP_SSI_IF_EXPR 0
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203
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46
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204
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102
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205 static ngx_http_ssi_param_t ngx_http_ssi_include_params[] = {
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146
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206 { ngx_string("virtual"), NGX_HTTP_SSI_INCLUDE_VIRTUAL, 0, 0 },
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207 { ngx_string("file"), NGX_HTTP_SSI_INCLUDE_FILE, 0, 0 },
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194
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208 { ngx_string("wait"), NGX_HTTP_SSI_INCLUDE_WAIT, 0, 0 },
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146
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209 { ngx_null_string, 0, 0, 0 }
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102
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210 };
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211
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212
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46
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213 static ngx_http_ssi_param_t ngx_http_ssi_echo_params[] = {
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146
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214 { ngx_string("var"), NGX_HTTP_SSI_ECHO_VAR, 1, 0 },
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215 { ngx_string("default"), NGX_HTTP_SSI_ECHO_DEFAULT, 0, 0 },
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216 { ngx_null_string, 0, 0, 0 }
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46
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217 };
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218
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58
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219
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220 static ngx_http_ssi_param_t ngx_http_ssi_config_params[] = {
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146
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221 { ngx_string("errmsg"), NGX_HTTP_SSI_CONFIG_ERRMSG, 0, 0 },
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222 { ngx_string("timefmt"), NGX_HTTP_SSI_CONFIG_TIMEFMT, 0, 0 },
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223 { ngx_null_string, 0, 0, 0 }
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58
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224 };
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225
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226
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102
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227 static ngx_http_ssi_param_t ngx_http_ssi_set_params[] = {
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146
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228 { ngx_string("var"), NGX_HTTP_SSI_SET_VAR, 1, 0 },
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229 { ngx_string("value"), NGX_HTTP_SSI_SET_VALUE, 1, 0 },
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230 { ngx_null_string, 0, 0, 0 }
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102
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231 };
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232
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233
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58
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234 static ngx_http_ssi_param_t ngx_http_ssi_if_params[] = {
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146
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235 { ngx_string("expr"), NGX_HTTP_SSI_IF_EXPR, 1, 0 },
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236 { ngx_null_string, 0, 0, 0 }
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58
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237 };
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238
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239
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240 static ngx_http_ssi_param_t ngx_http_ssi_no_params[] = {
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146
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241 { ngx_null_string, 0, 0, 0 }
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58
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242 };
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243
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46
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244
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245 static ngx_http_ssi_command_t ngx_http_ssi_commands[] = {
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102
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246 { ngx_string("include"), ngx_http_ssi_include,
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247 ngx_http_ssi_include_params, 0, 1 },
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58
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248 { ngx_string("echo"), ngx_http_ssi_echo, ngx_http_ssi_echo_params, 0, 0 },
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249 { ngx_string("config"), ngx_http_ssi_config,
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250 ngx_http_ssi_config_params, 0, 0 },
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102
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251 { ngx_string("set"), ngx_http_ssi_set, ngx_http_ssi_set_params, 0, 0 },
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58
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252
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253 { ngx_string("if"), ngx_http_ssi_if, ngx_http_ssi_if_params, 0, 0 },
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178
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254 { ngx_string("elif"), ngx_http_ssi_if, ngx_http_ssi_if_params,
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255 NGX_HTTP_SSI_COND_IF, 0 },
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256 { ngx_string("else"), ngx_http_ssi_else, ngx_http_ssi_no_params,
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257 NGX_HTTP_SSI_COND_IF, 0 },
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258 { ngx_string("endif"), ngx_http_ssi_endif, ngx_http_ssi_no_params,
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259 NGX_HTTP_SSI_COND_ELSE, 0 },
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58
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260
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261 { ngx_null_string, NULL, NULL, 0, 0 }
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46
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262 };
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263
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264
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58
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265 static ngx_http_variable_t ngx_http_ssi_vars[] = {
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266
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186
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267 { ngx_string("date_local"), NULL, ngx_http_ssi_date_gmt_local_variable, 0,
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82
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268 NGX_HTTP_VAR_NOCACHABLE, 0 },
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58
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269
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186
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270 { ngx_string("date_gmt"), NULL, ngx_http_ssi_date_gmt_local_variable, 1,
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82
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271 NGX_HTTP_VAR_NOCACHABLE, 0 },
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58
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272
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186
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273 { ngx_null_string, NULL, NULL, 0, 0, 0 }
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58
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274 };
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275
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276
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277
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46
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278 static ngx_int_t
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279 ngx_http_ssi_header_filter(ngx_http_request_t *r)
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280 {
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146
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281 ngx_uint_t i;
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282 ngx_str_t *type;
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283 ngx_http_ssi_ctx_t *ctx;
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284 ngx_http_ssi_loc_conf_t *slcf;
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285
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286 slcf = ngx_http_get_module_loc_conf(r, ngx_http_ssi_filter_module);
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287
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288 if (!slcf->enable
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126
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289 || r->headers_out.content_type.len == 0
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290 || r->headers_out.content_length_n == 0)
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46
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291 {
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292 return ngx_http_next_header_filter(r);
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293 }
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294
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295
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146
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296 type = slcf->types->elts;
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297 for (i = 0; i < slcf->types->nelts; i++) {
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76
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298 if (r->headers_out.content_type.len >= type[i].len
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299 && ngx_strncasecmp(r->headers_out.content_type.data,
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300 type[i].data, type[i].len) == 0)
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301 {
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302 goto found;
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303 }
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304 }
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305
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306 return ngx_http_next_header_filter(r);
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307
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308
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309 found:
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310
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48
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311 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_ssi_ctx_t));
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312 if (ctx == NULL) {
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46
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313 return NGX_ERROR;
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314 }
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315
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316 ngx_http_set_ctx(r, ctx, ngx_http_ssi_filter_module);
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317
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318
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146
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319 ctx->value_len = slcf->value_len;
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46
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320 ctx->last_out = &ctx->out;
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321
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58
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322 ctx->output = 1;
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323
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46
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324 ctx->params.elts = ctx->params_array;
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325 ctx->params.size = sizeof(ngx_table_elt_t);
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326 ctx->params.nalloc = NGX_HTTP_SSI_PARAMS_N;
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327 ctx->params.pool = r->pool;
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328
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58
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329 ctx->timefmt.len = sizeof("%A, %d-%b-%Y %H:%M:%S %Z") - 1;
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330 ctx->timefmt.data = (u_char *) "%A, %d-%b-%Y %H:%M:%S %Z";
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46
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331
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96
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332 ctx->errmsg.len =
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333 sizeof("[an error occurred while processing the directive]") - 1;
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334 ctx->errmsg.data = (u_char *)
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335 "[an error occurred while processing the directive]";
|
|
|
336
|
|
46
|
337 r->filter_need_in_memory = 1;
|
|
|
338
|
|
146
|
339 if (r == r->main) {
|
|
126
|
340 ngx_http_clear_content_length(r);
|
|
|
341 ngx_http_clear_last_modified(r);
|
|
58
|
342 }
|
|
|
343
|
|
46
|
344 return ngx_http_next_header_filter(r);
|
|
|
345 }
|
|
|
346
|
|
|
347
|
|
|
348 static ngx_int_t
|
|
|
349 ngx_http_ssi_body_filter(ngx_http_request_t *r, ngx_chain_t *in)
|
|
|
350 {
|
|
146
|
351 ngx_int_t rc;
|
|
|
352 ngx_buf_t *b;
|
|
|
353 ngx_uint_t i, index;
|
|
|
354 ngx_chain_t *cl;
|
|
|
355 ngx_table_elt_t *param;
|
|
|
356 ngx_connection_t *c;
|
|
|
357 ngx_http_ssi_ctx_t *ctx;
|
|
|
358 ngx_http_ssi_param_t *prm;
|
|
|
359 ngx_http_ssi_command_t *cmd;
|
|
|
360 ngx_http_ssi_loc_conf_t *slcf;
|
|
|
361 ngx_http_ssi_main_conf_t *smcf;
|
|
148
|
362 ngx_str_t *params[NGX_HTTP_SSI_MAX_PARAMS + 1];
|
|
46
|
363
|
|
|
364 ctx = ngx_http_get_module_ctx(r, ngx_http_ssi_filter_module);
|
|
|
365
|
|
194
|
366 if (ctx == NULL
|
|
|
367 || (in == NULL
|
|
|
368 && ctx->buf == NULL
|
|
|
369 && ctx->in == NULL
|
|
|
370 && ctx->busy == NULL))
|
|
|
371 {
|
|
46
|
372 return ngx_http_next_body_filter(r, in);
|
|
|
373 }
|
|
|
374
|
|
|
375 /* add the incoming chain to the chain ctx->in */
|
|
|
376
|
|
|
377 if (in) {
|
|
|
378 if (ngx_chain_add_copy(r->pool, &ctx->in, in) == NGX_ERROR) {
|
|
|
379 return NGX_ERROR;
|
|
|
380 }
|
|
|
381 }
|
|
|
382
|
|
194
|
383 if (ctx->wait) {
|
|
|
384 if (r->connection->data != r) {
|
|
|
385 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
386 "http ssi filter \"%V\" wait", &r->uri);
|
|
|
387 return NGX_AGAIN;
|
|
|
388 }
|
|
|
389
|
|
|
390 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
391 "http ssi filter \"%V\" continue", &r->uri);
|
|
|
392
|
|
|
393 ctx->wait = 0;
|
|
|
394 }
|
|
|
395
|
|
146
|
396 slcf = ngx_http_get_module_loc_conf(r, ngx_http_ssi_filter_module);
|
|
46
|
397
|
|
58
|
398 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
399 "http ssi filter \"%V\"", &r->uri);
|
|
46
|
400
|
|
48
|
401 while (ctx->in || ctx->buf) {
|
|
46
|
402
|
|
48
|
403 if (ctx->buf == NULL ){
|
|
|
404 ctx->buf = ctx->in->buf;
|
|
|
405 ctx->in = ctx->in->next;
|
|
|
406 ctx->pos = ctx->buf->pos;
|
|
|
407 }
|
|
46
|
408
|
|
|
409 if (ctx->state == ssi_start_state) {
|
|
|
410 ctx->copy_start = ctx->pos;
|
|
|
411 ctx->copy_end = ctx->pos;
|
|
|
412 }
|
|
|
413
|
|
48
|
414 b = NULL;
|
|
|
415
|
|
46
|
416 while (ctx->pos < ctx->buf->last) {
|
|
|
417
|
|
|
418 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
419 "saved: %d state: %d", ctx->saved, ctx->state);
|
|
|
420
|
|
|
421 rc = ngx_http_ssi_parse(r, ctx);
|
|
|
422
|
|
|
423 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
424 "parse: %d, looked: %d %p-%p",
|
|
|
425 rc, ctx->looked, ctx->copy_start, ctx->copy_end);
|
|
|
426
|
|
|
427 if (rc == NGX_ERROR) {
|
|
|
428 return rc;
|
|
|
429 }
|
|
|
430
|
|
|
431 if (ctx->copy_start != ctx->copy_end) {
|
|
|
432
|
|
58
|
433 if (ctx->output) {
|
|
|
434
|
|
|
435 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
436 "saved: %d", ctx->saved);
|
|
|
437
|
|
|
438 if (ctx->saved) {
|
|
|
439
|
|
|
440 if (ctx->free) {
|
|
|
441 cl = ctx->free;
|
|
|
442 ctx->free = ctx->free->next;
|
|
|
443 b = cl->buf;
|
|
|
444 ngx_memzero(b, sizeof(ngx_buf_t));
|
|
46
|
445
|
|
58
|
446 } else {
|
|
|
447 b = ngx_calloc_buf(r->pool);
|
|
|
448 if (b == NULL) {
|
|
|
449 return NGX_ERROR;
|
|
|
450 }
|
|
|
451
|
|
|
452 cl = ngx_alloc_chain_link(r->pool);
|
|
|
453 if (cl == NULL) {
|
|
|
454 return NGX_ERROR;
|
|
|
455 }
|
|
|
456
|
|
|
457 cl->buf = b;
|
|
|
458 }
|
|
|
459
|
|
|
460 b->memory = 1;
|
|
|
461 b->pos = ngx_http_ssi_string;
|
|
|
462 b->last = ngx_http_ssi_string + ctx->saved;
|
|
|
463
|
|
|
464 *ctx->last_out = cl;
|
|
|
465 ctx->last_out = &cl->next;
|
|
|
466
|
|
|
467 ctx->saved = 0;
|
|
|
468 }
|
|
48
|
469
|
|
|
470 if (ctx->free) {
|
|
|
471 cl = ctx->free;
|
|
|
472 ctx->free = ctx->free->next;
|
|
|
473 b = cl->buf;
|
|
|
474
|
|
|
475 } else {
|
|
58
|
476 b = ngx_alloc_buf(r->pool);
|
|
48
|
477 if (b == NULL) {
|
|
|
478 return NGX_ERROR;
|
|
|
479 }
|
|
|
480
|
|
|
481 cl = ngx_alloc_chain_link(r->pool);
|
|
|
482 if (cl == NULL) {
|
|
|
483 return NGX_ERROR;
|
|
|
484 }
|
|
|
485
|
|
|
486 cl->buf = b;
|
|
46
|
487 }
|
|
|
488
|
|
58
|
489 ngx_memcpy(b, ctx->buf, sizeof(ngx_buf_t));
|
|
|
490
|
|
62
|
491 b->pos = ctx->copy_start;
|
|
|
492 b->last = ctx->copy_end;
|
|
|
493 b->shadow = NULL;
|
|
58
|
494 b->last_buf = 0;
|
|
|
495 b->recycled = 0;
|
|
46
|
496
|
|
58
|
497 if (b->in_file) {
|
|
146
|
498 if (slcf->min_file_chunk < (size_t) (b->last - b->pos))
|
|
58
|
499 {
|
|
|
500 b->file_last = b->file_pos + (b->last - b->start);
|
|
|
501 b->file_pos += b->pos - b->start;
|
|
|
502
|
|
|
503 } else {
|
|
|
504 b->in_file = 0;
|
|
|
505 }
|
|
|
506 }
|
|
|
507
|
|
|
508 cl->next = NULL;
|
|
46
|
509 *ctx->last_out = cl;
|
|
|
510 ctx->last_out = &cl->next;
|
|
|
511
|
|
58
|
512 } else {
|
|
46
|
513 ctx->saved = 0;
|
|
|
514 }
|
|
|
515 }
|
|
|
516
|
|
|
517 if (ctx->state == ssi_start_state) {
|
|
|
518 ctx->copy_start = ctx->pos;
|
|
|
519 ctx->copy_end = ctx->pos;
|
|
|
520
|
|
|
521 } else {
|
|
|
522 ctx->copy_start = NULL;
|
|
|
523 ctx->copy_end = NULL;
|
|
|
524 }
|
|
|
525
|
|
|
526 if (rc == NGX_AGAIN) {
|
|
|
527 continue;
|
|
|
528 }
|
|
|
529
|
|
|
530
|
|
122
|
531 b = NULL;
|
|
|
532
|
|
46
|
533 if (rc == NGX_OK) {
|
|
|
534
|
|
146
|
535 smcf = ngx_http_get_module_main_conf(r,
|
|
|
536 ngx_http_ssi_filter_module);
|
|
|
537
|
|
|
538 cmd = ngx_hash_find(&smcf->hash, ctx->key, ctx->command.data,
|
|
|
539 ctx->command.len);
|
|
|
540
|
|
|
541 if (cmd == NULL) {
|
|
|
542 if (ctx->output) {
|
|
|
543 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
544 "invalid SSI command: \"%V\"",
|
|
|
545 &ctx->command);
|
|
|
546 goto ssi_error;
|
|
46
|
547 }
|
|
|
548
|
|
146
|
549 continue;
|
|
46
|
550 }
|
|
|
551
|
|
178
|
552 if (cmd->conditional
|
|
|
553 && (ctx->conditional == 0
|
|
|
554 || ctx->conditional > cmd->conditional))
|
|
|
555 {
|
|
|
556 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
557 "invalid context of SSI command: \"%V\"",
|
|
|
558 &ctx->command);
|
|
|
559 goto ssi_error;
|
|
|
560 }
|
|
|
561
|
|
|
562 if (!ctx->output && cmd->conditional == 0) {
|
|
58
|
563 continue;
|
|
|
564 }
|
|
|
565
|
|
146
|
566 if (ctx->params.nelts > NGX_HTTP_SSI_MAX_PARAMS) {
|
|
|
567 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
568 "too many SSI command paramters: \"%V\"",
|
|
|
569 &ctx->command);
|
|
|
570 goto ssi_error;
|
|
|
571 }
|
|
|
572
|
|
46
|
573 ngx_memzero(params,
|
|
148
|
574 (NGX_HTTP_SSI_MAX_PARAMS + 1) * sizeof(ngx_str_t *));
|
|
46
|
575
|
|
|
576 param = ctx->params.elts;
|
|
|
577
|
|
|
578 for (i = 0; i < ctx->params.nelts; i++) {
|
|
|
579
|
|
|
580 for (prm = cmd->params; prm->name.len; prm++) {
|
|
|
581
|
|
|
582 if (param[i].key.len != prm->name.len
|
|
|
583 || ngx_strncmp(param[i].key.data, prm->name.data,
|
|
|
584 prm->name.len) != 0)
|
|
|
585 {
|
|
|
586 continue;
|
|
|
587 }
|
|
|
588
|
|
146
|
589 if (!prm->multiple) {
|
|
|
590 if (params[prm->index]) {
|
|
|
591 ngx_log_error(NGX_LOG_ERR,
|
|
|
592 r->connection->log, 0,
|
|
|
593 "duplicate \"%V\" parameter "
|
|
|
594 "in \"%V\" SSI command",
|
|
|
595 ¶m[i].key, &ctx->command);
|
|
|
596
|
|
|
597 goto ssi_error;
|
|
|
598 }
|
|
|
599
|
|
|
600 params[prm->index] = ¶m[i].value;
|
|
|
601
|
|
|
602 break;
|
|
46
|
603 }
|
|
|
604
|
|
146
|
605 for (index = prm->index; params[index]; index++) {
|
|
|
606 /* void */
|
|
|
607 }
|
|
|
608
|
|
|
609 params[index] = ¶m[i].value;
|
|
46
|
610
|
|
|
611 break;
|
|
|
612 }
|
|
|
613
|
|
|
614 if (prm->name.len == 0) {
|
|
|
615 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
616 "invalid parameter name: \"%V\" "
|
|
|
617 "in \"%V\" SSI command",
|
|
|
618 ¶m[i].key, &ctx->command);
|
|
|
619
|
|
|
620 goto ssi_error;
|
|
|
621 }
|
|
|
622 }
|
|
|
623
|
|
|
624 for (prm = cmd->params; prm->name.len; prm++) {
|
|
|
625 if (prm->mandatory && params[prm->index] == 0) {
|
|
|
626 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
627 "mandatory \"%V\" parameter is absent "
|
|
|
628 "in \"%V\" SSI command",
|
|
|
629 &prm->name, &ctx->command);
|
|
|
630
|
|
|
631 goto ssi_error;
|
|
|
632 }
|
|
|
633 }
|
|
|
634
|
|
58
|
635 if (cmd->flush && ctx->out) {
|
|
|
636 rc = ngx_http_ssi_output(r, ctx);
|
|
|
637
|
|
|
638 if (rc == NGX_ERROR) {
|
|
|
639 return NGX_ERROR;
|
|
|
640 }
|
|
|
641 }
|
|
|
642
|
|
118
|
643 c = r->connection;
|
|
|
644
|
|
|
645 rc = cmd->handler(r, ctx, params);
|
|
|
646
|
|
132
|
647 if (c->destroyed) {
|
|
118
|
648 return NGX_DONE;
|
|
|
649 }
|
|
|
650
|
|
|
651 if (rc == NGX_OK) {
|
|
46
|
652 continue;
|
|
|
653 }
|
|
132
|
654
|
|
194
|
655 if (rc == NGX_AGAIN) {
|
|
|
656 return NGX_AGAIN;
|
|
|
657 }
|
|
|
658
|
|
132
|
659 if (rc == NGX_ERROR) {
|
|
|
660 return NGX_ERROR;
|
|
|
661 }
|
|
46
|
662 }
|
|
|
663
|
|
|
664
|
|
|
665 /* rc == NGX_HTTP_SSI_ERROR */
|
|
|
666
|
|
48
|
667 ssi_error:
|
|
46
|
668
|
|
146
|
669 if (slcf->silent_errors) {
|
|
46
|
670 continue;
|
|
|
671 }
|
|
|
672
|
|
48
|
673 if (ctx->free) {
|
|
|
674 cl = ctx->free;
|
|
|
675 ctx->free = ctx->free->next;
|
|
|
676 b = cl->buf;
|
|
|
677 ngx_memzero(b, sizeof(ngx_buf_t));
|
|
|
678
|
|
|
679 } else {
|
|
|
680 b = ngx_calloc_buf(r->pool);
|
|
|
681 if (b == NULL) {
|
|
|
682 return NGX_ERROR;
|
|
|
683 }
|
|
|
684
|
|
|
685 cl = ngx_alloc_chain_link(r->pool);
|
|
|
686 if (cl == NULL) {
|
|
|
687 return NGX_ERROR;
|
|
|
688 }
|
|
|
689
|
|
|
690 cl->buf = b;
|
|
46
|
691 }
|
|
|
692
|
|
|
693 b->memory = 1;
|
|
96
|
694 b->pos = ctx->errmsg.data;
|
|
|
695 b->last = ctx->errmsg.data + ctx->errmsg.len;
|
|
46
|
696
|
|
|
697 cl->next = NULL;
|
|
|
698 *ctx->last_out = cl;
|
|
|
699 ctx->last_out = &cl->next;
|
|
|
700
|
|
|
701 continue;
|
|
|
702 }
|
|
|
703
|
|
58
|
704 if (ctx->buf->last_buf || ctx->buf->recycled) {
|
|
48
|
705 if (b == NULL) {
|
|
|
706 if (ctx->free) {
|
|
|
707 cl = ctx->free;
|
|
|
708 ctx->free = ctx->free->next;
|
|
|
709 b = cl->buf;
|
|
|
710 ngx_memzero(b, sizeof(ngx_buf_t));
|
|
|
711
|
|
|
712 } else {
|
|
|
713 b = ngx_calloc_buf(r->pool);
|
|
|
714 if (b == NULL) {
|
|
|
715 return NGX_ERROR;
|
|
|
716 }
|
|
46
|
717
|
|
48
|
718 cl = ngx_alloc_chain_link(r->pool);
|
|
|
719 if (cl == NULL) {
|
|
|
720 return NGX_ERROR;
|
|
|
721 }
|
|
|
722
|
|
|
723 cl->buf = b;
|
|
|
724 }
|
|
|
725
|
|
58
|
726 b->sync = 1;
|
|
|
727
|
|
48
|
728 cl->next = NULL;
|
|
|
729 *ctx->last_out = cl;
|
|
|
730 ctx->last_out = &cl->next;
|
|
|
731 }
|
|
|
732
|
|
|
733 b->last_buf = ctx->buf->last_buf;
|
|
|
734 b->shadow = ctx->buf;
|
|
58
|
735
|
|
146
|
736 if (slcf->ignore_recycled_buffers == 0) {
|
|
58
|
737 b->recycled = ctx->buf->recycled;
|
|
|
738 }
|
|
46
|
739 }
|
|
|
740
|
|
48
|
741 ctx->buf = NULL;
|
|
|
742
|
|
46
|
743 ctx->saved = ctx->looked;
|
|
|
744 }
|
|
|
745
|
|
48
|
746 if (ctx->out == NULL && ctx->busy == NULL) {
|
|
46
|
747 return NGX_OK;
|
|
|
748 }
|
|
|
749
|
|
58
|
750 return ngx_http_ssi_output(r, ctx);
|
|
|
751 }
|
|
|
752
|
|
|
753
|
|
|
754 static ngx_int_t
|
|
|
755 ngx_http_ssi_output(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx)
|
|
|
756 {
|
|
|
757 ngx_int_t rc;
|
|
|
758 ngx_buf_t *b;
|
|
|
759 ngx_chain_t *cl;
|
|
|
760
|
|
190
|
761 #if 1
|
|
|
762 b = NULL;
|
|
|
763 for (cl = ctx->out; cl; cl = cl->next) {
|
|
192
|
764 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
765 "ssi out: %p %p", cl->buf, cl->buf->pos);
|
|
190
|
766 if (cl->buf == b) {
|
|
|
767 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
|
|
|
768 "the same buf was used in ssi");
|
|
|
769 ngx_debug_point();
|
|
|
770 return NGX_ERROR;
|
|
|
771 }
|
|
|
772 b = cl->buf;
|
|
|
773 }
|
|
|
774 #endif
|
|
|
775
|
|
46
|
776 rc = ngx_http_next_body_filter(r, ctx->out);
|
|
|
777
|
|
48
|
778 if (ctx->busy == NULL) {
|
|
|
779 ctx->busy = ctx->out;
|
|
|
780
|
|
|
781 } else {
|
|
|
782 for (cl = ctx->busy; cl->next; cl = cl->next) { /* void */ }
|
|
|
783 cl->next = ctx->out;
|
|
|
784 }
|
|
|
785
|
|
46
|
786 ctx->out = NULL;
|
|
|
787 ctx->last_out = &ctx->out;
|
|
|
788
|
|
48
|
789 while (ctx->busy) {
|
|
|
790
|
|
|
791 b = ctx->busy->buf;
|
|
|
792
|
|
|
793 if (ngx_buf_size(b) != 0) {
|
|
|
794 break;
|
|
|
795 }
|
|
|
796
|
|
|
797 #if (NGX_HAVE_WRITE_ZEROCOPY)
|
|
|
798 if (b->zerocopy_busy) {
|
|
|
799 break;
|
|
|
800 }
|
|
|
801 #endif
|
|
|
802
|
|
|
803 if (b->shadow) {
|
|
|
804 b->shadow->pos = b->shadow->last;
|
|
|
805 }
|
|
|
806
|
|
|
807 cl = ctx->busy;
|
|
|
808 ctx->busy = cl->next;
|
|
194
|
809
|
|
|
810 if (ngx_buf_in_memory(b) || b->in_file) {
|
|
|
811 /* add data bufs only to the free buf chain */
|
|
|
812
|
|
|
813 cl->next = ctx->free;
|
|
|
814 ctx->free = cl;
|
|
|
815 }
|
|
48
|
816 }
|
|
|
817
|
|
46
|
818 return rc;
|
|
|
819 }
|
|
|
820
|
|
|
821
|
|
|
822 static ngx_int_t
|
|
|
823 ngx_http_ssi_parse(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx)
|
|
|
824 {
|
|
158
|
825 u_char *p, *value, *last, *copy_end, ch;
|
|
46
|
826 size_t looked;
|
|
|
827 ngx_http_ssi_state_e state;
|
|
|
828
|
|
|
829 state = ctx->state;
|
|
|
830 looked = ctx->looked;
|
|
|
831 last = ctx->buf->last;
|
|
|
832 copy_end = ctx->copy_end;
|
|
|
833
|
|
|
834 for (p = ctx->pos; p < last; p++) {
|
|
|
835
|
|
|
836 ch = *p;
|
|
|
837
|
|
|
838 if (state == ssi_start_state) {
|
|
|
839
|
|
|
840 /* the tight loop */
|
|
|
841
|
|
48
|
842 for ( ;; ) {
|
|
|
843 if (ch == '<') {
|
|
|
844 copy_end = p;
|
|
|
845 looked = 1;
|
|
|
846 state = ssi_tag_state;
|
|
|
847
|
|
|
848 goto tag_started;
|
|
46
|
849 }
|
|
|
850
|
|
48
|
851 if (++p == last) {
|
|
|
852 break;
|
|
|
853 }
|
|
46
|
854
|
|
48
|
855 ch = *p;
|
|
46
|
856 }
|
|
|
857
|
|
|
858 ctx->pos = p;
|
|
|
859 ctx->looked = looked;
|
|
|
860 ctx->copy_end = p;
|
|
|
861
|
|
|
862 if (ctx->copy_start == NULL) {
|
|
|
863 ctx->copy_start = ctx->buf->pos;
|
|
|
864 }
|
|
|
865
|
|
|
866 return NGX_AGAIN;
|
|
|
867
|
|
48
|
868 tag_started:
|
|
|
869
|
|
46
|
870 continue;
|
|
|
871 }
|
|
|
872
|
|
|
873 switch (state) {
|
|
|
874
|
|
|
875 case ssi_start_state:
|
|
|
876 break;
|
|
|
877
|
|
|
878 case ssi_tag_state:
|
|
|
879 switch (ch) {
|
|
|
880 case '!':
|
|
|
881 looked = 2;
|
|
|
882 state = ssi_comment0_state;
|
|
|
883 break;
|
|
|
884
|
|
|
885 case '<':
|
|
|
886 copy_end = p;
|
|
|
887 break;
|
|
|
888
|
|
|
889 default:
|
|
|
890 copy_end = p;
|
|
|
891 looked = 0;
|
|
|
892 state = ssi_start_state;
|
|
|
893 break;
|
|
|
894 }
|
|
|
895
|
|
|
896 break;
|
|
|
897
|
|
|
898 case ssi_comment0_state:
|
|
|
899 switch (ch) {
|
|
|
900 case '-':
|
|
|
901 looked = 3;
|
|
|
902 state = ssi_comment1_state;
|
|
|
903 break;
|
|
|
904
|
|
|
905 case '<':
|
|
|
906 copy_end = p;
|
|
|
907 looked = 1;
|
|
|
908 state = ssi_tag_state;
|
|
|
909 break;
|
|
|
910
|
|
|
911 default:
|
|
|
912 copy_end = p;
|
|
|
913 looked = 0;
|
|
|
914 state = ssi_start_state;
|
|
|
915 break;
|
|
|
916 }
|
|
|
917
|
|
|
918 break;
|
|
|
919
|
|
|
920 case ssi_comment1_state:
|
|
|
921 switch (ch) {
|
|
|
922 case '-':
|
|
|
923 looked = 4;
|
|
|
924 state = ssi_sharp_state;
|
|
|
925 break;
|
|
|
926
|
|
|
927 case '<':
|
|
|
928 copy_end = p;
|
|
|
929 looked = 1;
|
|
|
930 state = ssi_tag_state;
|
|
|
931 break;
|
|
|
932
|
|
|
933 default:
|
|
|
934 copy_end = p;
|
|
|
935 looked = 0;
|
|
|
936 state = ssi_start_state;
|
|
|
937 break;
|
|
|
938 }
|
|
|
939
|
|
|
940 break;
|
|
|
941
|
|
|
942 case ssi_sharp_state:
|
|
|
943 switch (ch) {
|
|
|
944 case '#':
|
|
|
945 if (ctx->copy_start) {
|
|
|
946 ctx->saved = 0;
|
|
|
947 }
|
|
|
948 looked = 0;
|
|
|
949 state = ssi_precommand_state;
|
|
|
950 break;
|
|
|
951
|
|
|
952 case '<':
|
|
|
953 copy_end = p;
|
|
|
954 looked = 1;
|
|
|
955 state = ssi_tag_state;
|
|
|
956 break;
|
|
|
957
|
|
|
958 default:
|
|
|
959 copy_end = p;
|
|
|
960 looked = 0;
|
|
|
961 state = ssi_start_state;
|
|
|
962 break;
|
|
|
963 }
|
|
|
964
|
|
|
965 break;
|
|
|
966
|
|
|
967 case ssi_precommand_state:
|
|
|
968 switch (ch) {
|
|
|
969 case ' ':
|
|
|
970 case CR:
|
|
|
971 case LF:
|
|
|
972 case '\t':
|
|
|
973 break;
|
|
|
974
|
|
|
975 default:
|
|
|
976 ctx->command.len = 1;
|
|
|
977 ctx->command.data = ngx_palloc(r->pool,
|
|
158
|
978 NGX_HTTP_SSI_COMMAND_LEN);
|
|
46
|
979 if (ctx->command.data == NULL) {
|
|
|
980 return NGX_ERROR;
|
|
|
981 }
|
|
|
982
|
|
|
983 ctx->command.data[0] = ch;
|
|
158
|
984
|
|
146
|
985 ctx->key = 0;
|
|
|
986 ctx->key = ngx_hash(ctx->key, ch);
|
|
|
987
|
|
46
|
988 ctx->params.nelts = 0;
|
|
178
|
989
|
|
46
|
990 state = ssi_command_state;
|
|
|
991 break;
|
|
|
992 }
|
|
|
993
|
|
|
994 break;
|
|
|
995
|
|
|
996 case ssi_command_state:
|
|
|
997 switch (ch) {
|
|
|
998 case ' ':
|
|
|
999 case CR:
|
|
|
1000 case LF:
|
|
|
1001 case '\t':
|
|
|
1002 state = ssi_preparam_state;
|
|
|
1003 break;
|
|
|
1004
|
|
|
1005 case '-':
|
|
|
1006 state = ssi_comment_end0_state;
|
|
|
1007 break;
|
|
|
1008
|
|
|
1009 default:
|
|
|
1010 if (ctx->command.len == NGX_HTTP_SSI_COMMAND_LEN) {
|
|
|
1011 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
158
|
1012 "the \"%V%c...\" SSI command is too long",
|
|
|
1013 &ctx->command, ch);
|
|
46
|
1014
|
|
|
1015 state = ssi_error_state;
|
|
|
1016 break;
|
|
|
1017 }
|
|
158
|
1018
|
|
|
1019 ctx->command.data[ctx->command.len++] = ch;
|
|
|
1020 ctx->key = ngx_hash(ctx->key, ch);
|
|
46
|
1021 }
|
|
|
1022
|
|
|
1023 break;
|
|
|
1024
|
|
|
1025 case ssi_preparam_state:
|
|
|
1026 switch (ch) {
|
|
|
1027 case ' ':
|
|
|
1028 case CR:
|
|
|
1029 case LF:
|
|
|
1030 case '\t':
|
|
|
1031 break;
|
|
|
1032
|
|
|
1033 case '-':
|
|
|
1034 state = ssi_comment_end0_state;
|
|
|
1035 break;
|
|
|
1036
|
|
|
1037 default:
|
|
48
|
1038 ctx->param = ngx_array_push(&ctx->params);
|
|
|
1039 if (ctx->param == NULL) {
|
|
46
|
1040 return NGX_ERROR;
|
|
|
1041 }
|
|
|
1042
|
|
|
1043 ctx->param->key.len = 1;
|
|
|
1044 ctx->param->key.data = ngx_palloc(r->pool,
|
|
158
|
1045 NGX_HTTP_SSI_PARAM_LEN);
|
|
46
|
1046 if (ctx->param->key.data == NULL) {
|
|
|
1047 return NGX_ERROR;
|
|
|
1048 }
|
|
|
1049
|
|
|
1050 ctx->param->key.data[0] = ch;
|
|
|
1051
|
|
|
1052 ctx->param->value.len = 0;
|
|
158
|
1053
|
|
|
1054 if (ctx->value_buf == NULL) {
|
|
|
1055 ctx->param->value.data = ngx_palloc(r->pool,
|
|
|
1056 ctx->value_len);
|
|
|
1057 if (ctx->param->value.data == NULL) {
|
|
|
1058 return NGX_ERROR;
|
|
|
1059 }
|
|
|
1060
|
|
|
1061 } else {
|
|
|
1062 ctx->param->value.data = ctx->value_buf;
|
|
46
|
1063 }
|
|
|
1064
|
|
|
1065 state = ssi_param_state;
|
|
|
1066 break;
|
|
|
1067 }
|
|
|
1068
|
|
|
1069 break;
|
|
|
1070
|
|
|
1071 case ssi_param_state:
|
|
|
1072 switch (ch) {
|
|
|
1073 case ' ':
|
|
|
1074 case CR:
|
|
|
1075 case LF:
|
|
|
1076 case '\t':
|
|
|
1077 state = ssi_preequal_state;
|
|
|
1078 break;
|
|
|
1079
|
|
|
1080 case '=':
|
|
|
1081 state = ssi_prevalue_state;
|
|
|
1082 break;
|
|
|
1083
|
|
|
1084 case '-':
|
|
|
1085 state = ssi_error_end0_state;
|
|
|
1086
|
|
|
1087 ctx->param->key.data[ctx->param->key.len++] = ch;
|
|
|
1088 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1089 "invalid \"%V\" parameter in \"%V\" SSI command",
|
|
|
1090 &ctx->param->key, &ctx->command);
|
|
|
1091 break;
|
|
|
1092
|
|
|
1093 default:
|
|
|
1094 if (ctx->param->key.len == NGX_HTTP_SSI_PARAM_LEN) {
|
|
|
1095 state = ssi_error_state;
|
|
|
1096 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
158
|
1097 "too long \"%V%c...\" parameter in "
|
|
46
|
1098 "\"%V\" SSI command",
|
|
158
|
1099 &ctx->param->key, ch, &ctx->command);
|
|
46
|
1100 break;
|
|
|
1101 }
|
|
158
|
1102
|
|
|
1103 ctx->param->key.data[ctx->param->key.len++] = ch;
|
|
46
|
1104 }
|
|
|
1105
|
|
|
1106 break;
|
|
|
1107
|
|
|
1108 case ssi_preequal_state:
|
|
|
1109 switch (ch) {
|
|
|
1110 case ' ':
|
|
|
1111 case CR:
|
|
|
1112 case LF:
|
|
|
1113 case '\t':
|
|
|
1114 break;
|
|
|
1115
|
|
|
1116 case '=':
|
|
|
1117 state = ssi_prevalue_state;
|
|
|
1118 break;
|
|
|
1119
|
|
|
1120 default:
|
|
|
1121 if (ch == '-') {
|
|
|
1122 state = ssi_error_end0_state;
|
|
|
1123 } else {
|
|
|
1124 state = ssi_error_state;
|
|
|
1125 }
|
|
|
1126
|
|
|
1127 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1128 "unexpected \"%c\" symbol after \"%V\" "
|
|
|
1129 "parameter in \"%V\" SSI command",
|
|
|
1130 ch, &ctx->param->key, &ctx->command);
|
|
|
1131 break;
|
|
|
1132 }
|
|
|
1133
|
|
|
1134 break;
|
|
|
1135
|
|
|
1136 case ssi_prevalue_state:
|
|
|
1137 switch (ch) {
|
|
|
1138 case ' ':
|
|
|
1139 case CR:
|
|
|
1140 case LF:
|
|
|
1141 case '\t':
|
|
|
1142 break;
|
|
|
1143
|
|
|
1144 case '"':
|
|
|
1145 state = ssi_double_quoted_value_state;
|
|
|
1146 break;
|
|
|
1147
|
|
|
1148 case '\'':
|
|
|
1149 state = ssi_quoted_value_state;
|
|
|
1150 break;
|
|
|
1151
|
|
|
1152 default:
|
|
|
1153 if (ch == '-') {
|
|
|
1154 state = ssi_error_end0_state;
|
|
|
1155 } else {
|
|
|
1156 state = ssi_error_state;
|
|
|
1157 }
|
|
|
1158
|
|
|
1159 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1160 "unexpected \"%c\" symbol before value of "
|
|
|
1161 "\"%V\" parameter in \"%V\" SSI command",
|
|
|
1162 ch, &ctx->param->key, &ctx->command);
|
|
|
1163 break;
|
|
|
1164 }
|
|
|
1165
|
|
|
1166 break;
|
|
|
1167
|
|
|
1168 case ssi_double_quoted_value_state:
|
|
|
1169 switch (ch) {
|
|
108
|
1170 case '"':
|
|
|
1171 state = ssi_postparam_state;
|
|
|
1172 break;
|
|
|
1173
|
|
46
|
1174 case '\\':
|
|
|
1175 ctx->saved_state = ssi_double_quoted_value_state;
|
|
|
1176 state = ssi_quoted_symbol_state;
|
|
108
|
1177
|
|
|
1178 /* fall through */
|
|
46
|
1179
|
|
|
1180 default:
|
|
|
1181 if (ctx->param->value.len == ctx->value_len) {
|
|
|
1182 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
158
|
1183 "too long \"%V%c...\" value of \"%V\" "
|
|
|
1184 "parameter in \"%V\" SSI command",
|
|
|
1185 &ctx->param->value, ch, &ctx->param->key,
|
|
46
|
1186 &ctx->command);
|
|
|
1187 state = ssi_error_state;
|
|
|
1188 break;
|
|
|
1189 }
|
|
158
|
1190
|
|
|
1191 ctx->param->value.data[ctx->param->value.len++] = ch;
|
|
46
|
1192 }
|
|
|
1193
|
|
|
1194 break;
|
|
|
1195
|
|
|
1196 case ssi_quoted_value_state:
|
|
|
1197 switch (ch) {
|
|
108
|
1198 case '\'':
|
|
|
1199 state = ssi_postparam_state;
|
|
|
1200 break;
|
|
|
1201
|
|
46
|
1202 case '\\':
|
|
|
1203 ctx->saved_state = ssi_quoted_value_state;
|
|
|
1204 state = ssi_quoted_symbol_state;
|
|
108
|
1205
|
|
|
1206 /* fall through */
|
|
46
|
1207
|
|
|
1208 default:
|
|
|
1209 if (ctx->param->value.len == ctx->value_len) {
|
|
|
1210 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
158
|
1211 "too long \"%V%c...\" value of \"%V\" "
|
|
|
1212 "parameter in \"%V\" SSI command",
|
|
|
1213 &ctx->param->value, ch, &ctx->param->key,
|
|
46
|
1214 &ctx->command);
|
|
|
1215 state = ssi_error_state;
|
|
|
1216 break;
|
|
|
1217 }
|
|
158
|
1218
|
|
|
1219 ctx->param->value.data[ctx->param->value.len++] = ch;
|
|
46
|
1220 }
|
|
|
1221
|
|
|
1222 break;
|
|
|
1223
|
|
|
1224 case ssi_quoted_symbol_state:
|
|
108
|
1225 state = ctx->saved_state;
|
|
|
1226
|
|
46
|
1227 ctx->param->value.data[ctx->param->value.len++] = ch;
|
|
|
1228
|
|
|
1229 break;
|
|
|
1230
|
|
|
1231 case ssi_postparam_state:
|
|
158
|
1232
|
|
200
|
1233 if (ctx->param->value.len + 1 < ctx->value_len / 2) {
|
|
|
1234 value = ngx_palloc(r->pool, ctx->param->value.len + 1);
|
|
158
|
1235 if (value == NULL) {
|
|
|
1236 return NGX_ERROR;
|
|
|
1237 }
|
|
|
1238
|
|
|
1239 ngx_memcpy(value, ctx->param->value.data,
|
|
|
1240 ctx->param->value.len);
|
|
|
1241
|
|
|
1242 ctx->value_buf = ctx->param->value.data;
|
|
|
1243 ctx->param->value.data = value;
|
|
|
1244
|
|
|
1245 } else {
|
|
|
1246 ctx->value_buf = NULL;
|
|
|
1247 }
|
|
|
1248
|
|
46
|
1249 switch (ch) {
|
|
|
1250 case ' ':
|
|
|
1251 case CR:
|
|
|
1252 case LF:
|
|
|
1253 case '\t':
|
|
|
1254 state = ssi_preparam_state;
|
|
|
1255 break;
|
|
|
1256
|
|
|
1257 case '-':
|
|
|
1258 state = ssi_comment_end0_state;
|
|
|
1259 break;
|
|
|
1260
|
|
|
1261 default:
|
|
|
1262 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1263 "unexpected \"%c\" symbol after \"%V\" value "
|
|
|
1264 "of \"%V\" parameter in \"%V\" SSI command",
|
|
|
1265 ch, &ctx->param->value, &ctx->param->key,
|
|
|
1266 &ctx->command);
|
|
|
1267 state = ssi_error_state;
|
|
|
1268 break;
|
|
|
1269 }
|
|
|
1270
|
|
|
1271 break;
|
|
|
1272
|
|
|
1273 case ssi_comment_end0_state:
|
|
|
1274 switch (ch) {
|
|
|
1275 case '-':
|
|
|
1276 state = ssi_comment_end1_state;
|
|
|
1277 break;
|
|
|
1278
|
|
|
1279 default:
|
|
|
1280 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1281 "unexpected \"%c\" symbol in \"%V\" SSI command",
|
|
|
1282 ch, &ctx->command);
|
|
|
1283 state = ssi_error_state;
|
|
|
1284 break;
|
|
|
1285 }
|
|
|
1286
|
|
|
1287 break;
|
|
|
1288
|
|
|
1289 case ssi_comment_end1_state:
|
|
|
1290 switch (ch) {
|
|
|
1291 case '>':
|
|
|
1292 ctx->state = ssi_start_state;
|
|
|
1293 ctx->pos = p + 1;
|
|
|
1294 ctx->looked = looked;
|
|
|
1295 ctx->copy_end = copy_end;
|
|
|
1296
|
|
|
1297 if (ctx->copy_start == NULL && copy_end) {
|
|
|
1298 ctx->copy_start = ctx->buf->pos;
|
|
|
1299 }
|
|
|
1300
|
|
|
1301 return NGX_OK;
|
|
|
1302
|
|
|
1303 default:
|
|
|
1304 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1305 "unexpected \"%c\" symbol in \"%V\" SSI command",
|
|
|
1306 ch, &ctx->command);
|
|
|
1307 state = ssi_error_state;
|
|
|
1308 break;
|
|
|
1309 }
|
|
|
1310
|
|
|
1311 break;
|
|
|
1312
|
|
|
1313 case ssi_error_state:
|
|
|
1314 switch (ch) {
|
|
|
1315 case '-':
|
|
|
1316 state = ssi_error_end0_state;
|
|
|
1317 break;
|
|
|
1318
|
|
|
1319 default:
|
|
|
1320 break;
|
|
|
1321 }
|
|
|
1322
|
|
|
1323 break;
|
|
|
1324
|
|
|
1325 case ssi_error_end0_state:
|
|
|
1326 switch (ch) {
|
|
|
1327 case '-':
|
|
|
1328 state = ssi_error_end1_state;
|
|
|
1329 break;
|
|
|
1330
|
|
|
1331 default:
|
|
|
1332 state = ssi_error_state;
|
|
|
1333 break;
|
|
|
1334 }
|
|
|
1335
|
|
|
1336 break;
|
|
|
1337
|
|
|
1338 case ssi_error_end1_state:
|
|
|
1339 switch (ch) {
|
|
|
1340 case '>':
|
|
|
1341 ctx->state = ssi_start_state;
|
|
|
1342 ctx->pos = p + 1;
|
|
|
1343 ctx->looked = looked;
|
|
|
1344 ctx->copy_end = copy_end;
|
|
|
1345
|
|
|
1346 if (ctx->copy_start == NULL && copy_end) {
|
|
|
1347 ctx->copy_start = ctx->buf->pos;
|
|
|
1348 }
|
|
|
1349
|
|
|
1350 return NGX_HTTP_SSI_ERROR;
|
|
|
1351
|
|
|
1352 default:
|
|
|
1353 state = ssi_error_state;
|
|
|
1354 break;
|
|
|
1355 }
|
|
|
1356
|
|
|
1357 break;
|
|
|
1358 }
|
|
|
1359 }
|
|
|
1360
|
|
|
1361 ctx->state = state;
|
|
|
1362 ctx->pos = p;
|
|
|
1363 ctx->looked = looked;
|
|
|
1364
|
|
|
1365 ctx->copy_end = (state == ssi_start_state) ? p : copy_end;
|
|
|
1366
|
|
|
1367 if (ctx->copy_start == NULL && ctx->copy_end) {
|
|
|
1368 ctx->copy_start = ctx->buf->pos;
|
|
|
1369 }
|
|
|
1370
|
|
|
1371 return NGX_AGAIN;
|
|
|
1372 }
|
|
|
1373
|
|
|
1374
|
|
102
|
1375 static ngx_str_t *
|
|
160
|
1376 ngx_http_ssi_get_variable(ngx_http_request_t *r, ngx_str_t *name,
|
|
|
1377 ngx_uint_t key)
|
|
102
|
1378 {
|
|
|
1379 ngx_uint_t i;
|
|
|
1380 ngx_http_ssi_var_t *var;
|
|
|
1381 ngx_http_ssi_ctx_t *ctx;
|
|
|
1382
|
|
|
1383 ctx = ngx_http_get_module_ctx(r->main, ngx_http_ssi_filter_module);
|
|
|
1384
|
|
|
1385 var = ctx->variables.elts;
|
|
|
1386 for (i = 0; i < ctx->variables.nelts; i++) {
|
|
|
1387 if (name->len != var[i].name.len) {
|
|
|
1388 continue;
|
|
|
1389 }
|
|
|
1390
|
|
160
|
1391 if (key != var[i].key) {
|
|
|
1392 continue;
|
|
|
1393 }
|
|
|
1394
|
|
|
1395 if (ngx_strncmp(name->data, var[i].name.data, name->len) == 0) {
|
|
102
|
1396 return &var[i].value;
|
|
|
1397 }
|
|
|
1398 }
|
|
|
1399
|
|
|
1400 return NULL;
|
|
|
1401 }
|
|
|
1402
|
|
|
1403
|
|
|
1404 static ngx_int_t
|
|
|
1405 ngx_http_ssi_evaluate_string(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
|
|
|
1406 ngx_str_t *text, ngx_uint_t flags)
|
|
|
1407 {
|
|
122
|
1408 u_char ch, *p, **value, *data, *part_data;
|
|
|
1409 size_t *size, len, prefix, part_len;
|
|
|
1410 ngx_str_t var, *val;
|
|
160
|
1411 ngx_int_t key;
|
|
200
|
1412 ngx_uint_t i, j, n, bracket, quoted;
|
|
102
|
1413 ngx_array_t lengths, values;
|
|
|
1414 ngx_http_variable_value_t *vv;
|
|
|
1415
|
|
|
1416 n = ngx_http_script_variables_count(text);
|
|
|
1417
|
|
|
1418 if (n == 0) {
|
|
|
1419
|
|
|
1420 if (!(flags & NGX_HTTP_SSI_ADD_PREFIX)) {
|
|
|
1421 return NGX_OK;
|
|
|
1422 }
|
|
|
1423
|
|
|
1424 if (text->data[0] != '/') {
|
|
|
1425 for (prefix = r->uri.len; prefix; prefix--) {
|
|
|
1426 if (r->uri.data[prefix - 1] == '/') {
|
|
|
1427 break;
|
|
|
1428 }
|
|
|
1429 }
|
|
|
1430
|
|
|
1431 if (prefix) {
|
|
|
1432 len = prefix + text->len;
|
|
|
1433
|
|
|
1434 data = ngx_palloc(r->pool, len);
|
|
|
1435 if (data == NULL) {
|
|
|
1436 return NGX_ERROR;
|
|
|
1437 }
|
|
|
1438
|
|
122
|
1439 p = ngx_copy(data, r->uri.data, prefix);
|
|
102
|
1440 ngx_memcpy(p, text->data, text->len);
|
|
|
1441
|
|
|
1442 text->len = len;
|
|
|
1443 text->data = data;
|
|
|
1444 }
|
|
|
1445 }
|
|
|
1446
|
|
|
1447 return NGX_OK;
|
|
|
1448 }
|
|
|
1449
|
|
|
1450 if (ngx_array_init(&lengths, r->pool, 8, sizeof(size_t *)) != NGX_OK) {
|
|
|
1451 return NGX_ERROR;
|
|
|
1452 }
|
|
|
1453
|
|
|
1454 if (ngx_array_init(&values, r->pool, 8, sizeof(u_char *)) != NGX_OK) {
|
|
|
1455 return NGX_ERROR;
|
|
|
1456 }
|
|
|
1457
|
|
|
1458 len = 0;
|
|
|
1459 i = 0;
|
|
|
1460
|
|
|
1461 while (i < text->len) {
|
|
|
1462
|
|
|
1463 if (text->data[i] == '$') {
|
|
|
1464
|
|
|
1465 var.len = 0;
|
|
|
1466
|
|
|
1467 if (++i == text->len) {
|
|
|
1468 goto invalid_variable;
|
|
|
1469 }
|
|
|
1470
|
|
|
1471 if (text->data[i] == '{') {
|
|
|
1472 bracket = 1;
|
|
|
1473
|
|
|
1474 if (++i == text->len) {
|
|
|
1475 goto invalid_variable;
|
|
|
1476 }
|
|
|
1477
|
|
|
1478 var.data = &text->data[i];
|
|
|
1479
|
|
|
1480 } else {
|
|
|
1481 bracket = 0;
|
|
|
1482 var.data = &text->data[i];
|
|
|
1483 }
|
|
|
1484
|
|
|
1485 for ( /* void */ ; i < text->len; i++, var.len++) {
|
|
|
1486 ch = text->data[i];
|
|
|
1487
|
|
|
1488 if (ch == '}' && bracket) {
|
|
|
1489 i++;
|
|
|
1490 bracket = 0;
|
|
|
1491 break;
|
|
|
1492 }
|
|
|
1493
|
|
|
1494 if ((ch >= 'A' && ch <= 'Z')
|
|
|
1495 || (ch >= 'a' && ch <= 'z')
|
|
|
1496 || (ch >= '0' && ch <= '9')
|
|
|
1497 || ch == '_')
|
|
|
1498 {
|
|
|
1499 continue;
|
|
|
1500 }
|
|
|
1501
|
|
|
1502 break;
|
|
|
1503 }
|
|
|
1504
|
|
|
1505 if (bracket) {
|
|
|
1506 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1507 "the closing bracket in \"%V\" "
|
|
|
1508 "variable is missing", &var);
|
|
|
1509 return NGX_ERROR;
|
|
|
1510 }
|
|
|
1511
|
|
126
|
1512 if (var.len == 0) {
|
|
102
|
1513 goto invalid_variable;
|
|
|
1514 }
|
|
|
1515
|
|
160
|
1516 key = 0;
|
|
|
1517
|
|
102
|
1518 for (j = 0; j < var.len; j++) {
|
|
|
1519 var.data[j] = ngx_tolower(var.data[j]);
|
|
160
|
1520 key = ngx_hash(key, var.data[j]);
|
|
102
|
1521 }
|
|
|
1522
|
|
160
|
1523 val = ngx_http_ssi_get_variable(r, &var, key);
|
|
102
|
1524
|
|
|
1525 if (val == NULL) {
|
|
184
|
1526 vv = ngx_http_get_variable(r, &var, key,
|
|
|
1527 flags & NGX_HTTP_SSI_EXPR_TEST);
|
|
102
|
1528 if (vv == NULL) {
|
|
|
1529 return NGX_ERROR;
|
|
|
1530 }
|
|
|
1531
|
|
122
|
1532 if (vv->not_found) {
|
|
102
|
1533 continue;
|
|
|
1534 }
|
|
|
1535
|
|
122
|
1536 part_data = vv->data;
|
|
|
1537 part_len = vv->len;
|
|
102
|
1538
|
|
|
1539 } else {
|
|
122
|
1540 part_data = val->data;
|
|
|
1541 part_len = val->len;
|
|
102
|
1542 }
|
|
|
1543
|
|
|
1544 } else {
|
|
122
|
1545 part_data = &text->data[i];
|
|
200
|
1546 quoted = 0;
|
|
122
|
1547
|
|
|
1548 for (p = part_data; i < text->len; i++) {
|
|
108
|
1549 ch = text->data[i];
|
|
|
1550
|
|
200
|
1551 if (!quoted) {
|
|
|
1552
|
|
|
1553 if (ch == '\\') {
|
|
|
1554 quoted = 1;
|
|
|
1555 continue;
|
|
|
1556 }
|
|
|
1557
|
|
|
1558 if (ch == '$') {
|
|
108
|
1559 break;
|
|
|
1560 }
|
|
|
1561
|
|
200
|
1562 } else {
|
|
|
1563 quoted = 0;
|
|
|
1564
|
|
|
1565 if (ch != '\\' && ch != '\'' && ch != '"' && ch != '$') {
|
|
|
1566 *p++ = '\\';
|
|
|
1567 }
|
|
108
|
1568 }
|
|
|
1569
|
|
|
1570 *p++ = ch;
|
|
102
|
1571 }
|
|
108
|
1572
|
|
122
|
1573 part_len = p - part_data;
|
|
102
|
1574 }
|
|
|
1575
|
|
122
|
1576 len += part_len;
|
|
102
|
1577
|
|
|
1578 size = ngx_array_push(&lengths);
|
|
|
1579 if (size == NULL) {
|
|
|
1580 return NGX_ERROR;
|
|
|
1581 }
|
|
|
1582
|
|
122
|
1583 *size = part_len;
|
|
102
|
1584
|
|
|
1585 value = ngx_array_push(&values);
|
|
|
1586 if (value == NULL) {
|
|
|
1587 return NGX_ERROR;
|
|
|
1588 }
|
|
|
1589
|
|
122
|
1590 *value = part_data;
|
|
102
|
1591 }
|
|
|
1592
|
|
|
1593 prefix = 0;
|
|
|
1594
|
|
|
1595 size = lengths.elts;
|
|
|
1596 value = values.elts;
|
|
|
1597
|
|
|
1598 if (flags & NGX_HTTP_SSI_ADD_PREFIX) {
|
|
|
1599 for (i = 0; i < values.nelts; i++) {
|
|
|
1600 if (size[i] != 0) {
|
|
|
1601 if (*value[i] != '/') {
|
|
|
1602 for (prefix = r->uri.len; prefix; prefix--) {
|
|
|
1603 if (r->uri.data[prefix - 1] == '/') {
|
|
|
1604 len += prefix;
|
|
|
1605 break;
|
|
|
1606 }
|
|
|
1607 }
|
|
|
1608 }
|
|
|
1609
|
|
|
1610 break;
|
|
|
1611 }
|
|
|
1612 }
|
|
|
1613 }
|
|
|
1614
|
|
178
|
1615 p = ngx_palloc(r->pool, len + ((flags & NGX_HTTP_SSI_ADD_ZERO) ? 1 : 0));
|
|
102
|
1616 if (p == NULL) {
|
|
|
1617 return NGX_ERROR;
|
|
|
1618 }
|
|
|
1619
|
|
|
1620 text->len = len;
|
|
|
1621 text->data = p;
|
|
|
1622
|
|
122
|
1623 p = ngx_copy(p, r->uri.data, prefix);
|
|
102
|
1624
|
|
|
1625 for (i = 0; i < values.nelts; i++) {
|
|
122
|
1626 p = ngx_copy(p, value[i], size[i]);
|
|
102
|
1627 }
|
|
|
1628
|
|
|
1629 return NGX_OK;
|
|
|
1630
|
|
|
1631 invalid_variable:
|
|
|
1632
|
|
|
1633 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1634 "invalid variable name in \"%V\"", text);
|
|
|
1635
|
|
|
1636 return NGX_ERROR;
|
|
|
1637 }
|
|
|
1638
|
|
|
1639
|
|
|
1640 static ngx_int_t
|
|
|
1641 ngx_http_ssi_include(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
|
|
|
1642 ngx_str_t **params)
|
|
|
1643 {
|
|
194
|
1644 ngx_int_t rc;
|
|
|
1645 ngx_str_t *uri, *file, *wait, args;
|
|
122
|
1646 ngx_uint_t flags;
|
|
102
|
1647
|
|
|
1648 uri = params[NGX_HTTP_SSI_INCLUDE_VIRTUAL];
|
|
|
1649 file = params[NGX_HTTP_SSI_INCLUDE_FILE];
|
|
194
|
1650 wait = params[NGX_HTTP_SSI_INCLUDE_WAIT];
|
|
102
|
1651
|
|
|
1652 if (uri && file) {
|
|
|
1653 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1654 "inlcusion may be either virtual=\"%V\" or file=\"%V\"",
|
|
|
1655 uri, file);
|
|
|
1656 return NGX_HTTP_SSI_ERROR;
|
|
|
1657 }
|
|
|
1658
|
|
|
1659 if (uri == NULL && file == NULL) {
|
|
|
1660 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1661 "no parameter in \"include\" SSI command");
|
|
|
1662 return NGX_HTTP_SSI_ERROR;
|
|
|
1663 }
|
|
|
1664
|
|
194
|
1665 if (wait) {
|
|
|
1666 if (uri == NULL) {
|
|
|
1667 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1668 "\"wait\" may not be used with file=\"%V\"",
|
|
|
1669 uri, file);
|
|
|
1670 return NGX_HTTP_SSI_ERROR;
|
|
|
1671 }
|
|
|
1672
|
|
|
1673 if (wait->len == 2 && ngx_strncasecmp(wait->data, "no", 2) == 0) {
|
|
|
1674 wait = NULL;
|
|
|
1675
|
|
|
1676 } else if (wait->len != 3 || ngx_strncasecmp(wait->data, "yes", 3) != 0)
|
|
|
1677 {
|
|
|
1678 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1679 "invalid value \"%V\" in the \"wait\" parameter",
|
|
|
1680 &wait);
|
|
|
1681 return NGX_HTTP_SSI_ERROR;
|
|
|
1682 }
|
|
|
1683 }
|
|
|
1684
|
|
102
|
1685 if (uri == NULL) {
|
|
|
1686 uri = file;
|
|
|
1687 }
|
|
|
1688
|
|
|
1689 if (ngx_http_ssi_evaluate_string(r, ctx, uri, NGX_HTTP_SSI_ADD_PREFIX)
|
|
|
1690 != NGX_OK)
|
|
|
1691 {
|
|
|
1692 return NGX_HTTP_SSI_ERROR;
|
|
|
1693 }
|
|
|
1694
|
|
|
1695 args.len = 0;
|
|
|
1696 args.data = NULL;
|
|
122
|
1697 flags = 0;
|
|
|
1698
|
|
|
1699 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1700 "ssi include: \"%V\"", uri);
|
|
|
1701
|
|
|
1702 if (ngx_http_parse_unsafe_uri(r, uri, &args, &flags) != NGX_OK) {
|
|
|
1703 return NGX_HTTP_SSI_ERROR;
|
|
102
|
1704 }
|
|
|
1705
|
|
194
|
1706 rc = ngx_http_subrequest(r, uri, &args, flags);
|
|
|
1707
|
|
|
1708 if (rc == NGX_ERROR) {
|
|
102
|
1709 return NGX_HTTP_SSI_ERROR;
|
|
|
1710 }
|
|
|
1711
|
|
194
|
1712 if (wait == NULL) {
|
|
|
1713 return NGX_OK;
|
|
|
1714 }
|
|
|
1715
|
|
|
1716 if (rc == NGX_AGAIN) {
|
|
|
1717 ctx->wait = 1;
|
|
|
1718 }
|
|
|
1719
|
|
|
1720 return rc;
|
|
102
|
1721 }
|
|
|
1722
|
|
|
1723
|
|
46
|
1724 static ngx_int_t
|
|
|
1725 ngx_http_ssi_echo(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
|
|
|
1726 ngx_str_t **params)
|
|
|
1727 {
|
|
160
|
1728 ngx_int_t key;
|
|
50
|
1729 ngx_uint_t i;
|
|
48
|
1730 ngx_buf_t *b;
|
|
122
|
1731 ngx_str_t *var, *value, text;
|
|
48
|
1732 ngx_chain_t *cl;
|
|
50
|
1733 ngx_http_variable_value_t *vv;
|
|
46
|
1734
|
|
|
1735 var = params[NGX_HTTP_SSI_ECHO_VAR];
|
|
|
1736
|
|
192
|
1737 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1738 "ssi echo \"%V\"", var);
|
|
|
1739
|
|
160
|
1740 key = 0;
|
|
|
1741
|
|
|
1742 for (i = 0; i < var->len; i++) {
|
|
|
1743 var->data[i] = ngx_tolower(var->data[i]);
|
|
|
1744 key = ngx_hash(key, var->data[i]);
|
|
|
1745 }
|
|
|
1746
|
|
|
1747 value = ngx_http_ssi_get_variable(r, var, key);
|
|
102
|
1748
|
|
|
1749 if (value == NULL) {
|
|
184
|
1750 vv = ngx_http_get_variable(r, var, key, 1);
|
|
102
|
1751
|
|
|
1752 if (vv == NULL) {
|
|
|
1753 return NGX_HTTP_SSI_ERROR;
|
|
|
1754 }
|
|
|
1755
|
|
122
|
1756 if (!vv->not_found) {
|
|
|
1757 text.data = vv->data;
|
|
|
1758 text.len = vv->len;
|
|
|
1759 value = &text;
|
|
102
|
1760 }
|
|
50
|
1761 }
|
|
46
|
1762
|
|
102
|
1763 if (value == NULL) {
|
|
48
|
1764 value = params[NGX_HTTP_SSI_ECHO_DEFAULT];
|
|
|
1765
|
|
|
1766 if (value == NULL) {
|
|
|
1767 value = &ngx_http_ssi_none;
|
|
|
1768
|
|
|
1769 } else if (value->len == 0) {
|
|
|
1770 return NGX_OK;
|
|
|
1771 }
|
|
|
1772
|
|
|
1773 } else {
|
|
|
1774 if (value->len == 0) {
|
|
|
1775 return NGX_OK;
|
|
|
1776 }
|
|
|
1777 }
|
|
|
1778
|
|
|
1779 b = ngx_calloc_buf(r->pool);
|
|
|
1780 if (b == NULL) {
|
|
|
1781 return NGX_HTTP_SSI_ERROR;
|
|
|
1782 }
|
|
|
1783
|
|
|
1784 cl = ngx_alloc_chain_link(r->pool);
|
|
|
1785 if (cl == NULL) {
|
|
46
|
1786 return NGX_HTTP_SSI_ERROR;
|
|
|
1787 }
|
|
|
1788
|
|
|
1789 b->memory = 1;
|
|
|
1790 b->pos = value->data;
|
|
|
1791 b->last = value->data + value->len;
|
|
|
1792
|
|
|
1793 cl->buf = b;
|
|
|
1794 cl->next = NULL;
|
|
|
1795 *ctx->last_out = cl;
|
|
|
1796 ctx->last_out = &cl->next;
|
|
|
1797
|
|
|
1798 return NGX_OK;
|
|
|
1799 }
|
|
|
1800
|
|
|
1801
|
|
58
|
1802 static ngx_int_t
|
|
|
1803 ngx_http_ssi_config(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
|
|
|
1804 ngx_str_t **params)
|
|
|
1805 {
|
|
|
1806 ngx_str_t *value;
|
|
|
1807
|
|
|
1808 value = params[NGX_HTTP_SSI_CONFIG_TIMEFMT];
|
|
|
1809
|
|
|
1810 if (value) {
|
|
138
|
1811 ctx->timefmt.len = value->len;
|
|
|
1812 ctx->timefmt.data = ngx_palloc(r->pool, value->len + 1);
|
|
|
1813 if (ctx->timefmt.data == NULL) {
|
|
|
1814 return NGX_HTTP_SSI_ERROR;
|
|
|
1815 }
|
|
|
1816
|
|
|
1817 ngx_cpystrn(ctx->timefmt.data, value->data, value->len + 1);
|
|
58
|
1818 }
|
|
|
1819
|
|
96
|
1820 value = params[NGX_HTTP_SSI_CONFIG_ERRMSG];
|
|
|
1821
|
|
|
1822 if (value) {
|
|
|
1823 ctx->errmsg = *value;
|
|
|
1824 }
|
|
|
1825
|
|
58
|
1826 return NGX_OK;
|
|
|
1827 }
|
|
|
1828
|
|
|
1829
|
|
|
1830 static ngx_int_t
|
|
102
|
1831 ngx_http_ssi_set(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
|
|
58
|
1832 ngx_str_t **params)
|
|
|
1833 {
|
|
160
|
1834 ngx_int_t key;
|
|
|
1835 ngx_uint_t i;
|
|
102
|
1836 ngx_str_t *name, *value, *vv;
|
|
|
1837 ngx_http_ssi_var_t *var;
|
|
|
1838 ngx_http_ssi_ctx_t *mctx;
|
|
|
1839
|
|
|
1840 mctx = ngx_http_get_module_ctx(r->main, ngx_http_ssi_filter_module);
|
|
|
1841
|
|
|
1842 if (mctx->variables.elts == NULL) {
|
|
|
1843 if (ngx_array_init(&mctx->variables, r->pool, 4,
|
|
|
1844 sizeof(ngx_http_ssi_var_t)) != NGX_OK)
|
|
|
1845 {
|
|
58
|
1846 return NGX_HTTP_SSI_ERROR;
|
|
|
1847 }
|
|
|
1848 }
|
|
|
1849
|
|
102
|
1850 name = params[NGX_HTTP_SSI_SET_VAR];
|
|
|
1851 value = params[NGX_HTTP_SSI_SET_VALUE];
|
|
|
1852
|
|
192
|
1853 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1854 "ssi set \"%V\" \"%V\"", name, value);
|
|
|
1855
|
|
102
|
1856 if (ngx_http_ssi_evaluate_string(r, ctx, value, 0) != NGX_OK) {
|
|
58
|
1857 return NGX_HTTP_SSI_ERROR;
|
|
|
1858 }
|
|
|
1859
|
|
160
|
1860 key = 0;
|
|
|
1861
|
|
|
1862 for (i = 0; i < name->len; i++) {
|
|
|
1863 name->data[i] = ngx_tolower(name->data[i]);
|
|
|
1864 key = ngx_hash(key, name->data[i]);
|
|
|
1865 }
|
|
|
1866
|
|
|
1867 vv = ngx_http_ssi_get_variable(r, name, key);
|
|
102
|
1868
|
|
|
1869 if (vv) {
|
|
|
1870 *vv = *value;
|
|
|
1871 return NGX_OK;
|
|
|
1872 }
|
|
|
1873
|
|
|
1874 var = ngx_array_push(&mctx->variables);
|
|
|
1875 if (var == NULL) {
|
|
|
1876 return NGX_HTTP_SSI_ERROR;
|
|
|
1877 }
|
|
|
1878
|
|
|
1879 var->name = *name;
|
|
160
|
1880 var->key = key;
|
|
102
|
1881 var->value = *value;
|
|
|
1882
|
|
|
1883 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1884 "set: \"%V\"=\"%V\"", name, value);
|
|
|
1885
|
|
58
|
1886 return NGX_OK;
|
|
|
1887 }
|
|
|
1888
|
|
|
1889
|
|
|
1890 static ngx_int_t
|
|
|
1891 ngx_http_ssi_if(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
|
|
|
1892 ngx_str_t **params)
|
|
|
1893 {
|
|
102
|
1894 u_char *p, *last;
|
|
|
1895 ngx_str_t *expr, left, right;
|
|
|
1896 ngx_int_t rc;
|
|
178
|
1897 ngx_uint_t negative, noregex, flags;
|
|
100
|
1898 #if (NGX_PCRE)
|
|
102
|
1899 ngx_str_t err;
|
|
|
1900 ngx_regex_t *regex;
|
|
|
1901 u_char errstr[NGX_MAX_CONF_ERRSTR];
|
|
100
|
1902 #endif
|
|
58
|
1903
|
|
178
|
1904 if (ctx->command.len == 2) {
|
|
|
1905 if (ctx->conditional) {
|
|
|
1906 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1907 "the \"if\" command inside the \"if\" command");
|
|
|
1908 return NGX_HTTP_SSI_ERROR;
|
|
|
1909 }
|
|
|
1910 }
|
|
|
1911
|
|
|
1912 if (ctx->output_chosen) {
|
|
|
1913 ctx->output = 0;
|
|
|
1914 return NGX_OK;
|
|
|
1915 }
|
|
|
1916
|
|
58
|
1917 expr = params[NGX_HTTP_SSI_IF_EXPR];
|
|
|
1918
|
|
192
|
1919 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1920 "ssi if expr=\"%V\"", expr);
|
|
|
1921
|
|
102
|
1922 left.data = expr->data;
|
|
100
|
1923 last = expr->data + expr->len;
|
|
|
1924
|
|
102
|
1925 for (p = left.data; p < last; p++) {
|
|
100
|
1926 if (*p >= 'A' && *p <= 'Z') {
|
|
|
1927 *p |= 0x20;
|
|
|
1928 continue;
|
|
|
1929 }
|
|
58
|
1930
|
|
102
|
1931 if ((*p >= 'a' && *p <= 'z')
|
|
|
1932 || (*p >= '0' && *p <= '9')
|
|
122
|
1933 || *p == '$' || *p == '{' || *p == '}' || *p == '_'
|
|
|
1934 || *p == '"' || *p == '\'')
|
|
102
|
1935 {
|
|
100
|
1936 continue;
|
|
|
1937 }
|
|
|
1938
|
|
|
1939 break;
|
|
|
1940 }
|
|
|
1941
|
|
102
|
1942 left.len = p - left.data;
|
|
100
|
1943
|
|
|
1944 while (p < last && *p == ' ') {
|
|
|
1945 p++;
|
|
58
|
1946 }
|
|
|
1947
|
|
184
|
1948 flags = (p == last) ? NGX_HTTP_SSI_EXPR_TEST : 0;
|
|
|
1949
|
|
102
|
1950 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1951 "left: \"%V\"", &left);
|
|
|
1952
|
|
184
|
1953 if (ngx_http_ssi_evaluate_string(r, ctx, &left, flags) != NGX_OK) {
|
|
58
|
1954 return NGX_HTTP_SSI_ERROR;
|
|
|
1955 }
|
|
|
1956
|
|
102
|
1957 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1958 "evaluted left: \"%V\"", &left);
|
|
|
1959
|
|
100
|
1960 if (p == last) {
|
|
102
|
1961 if (left.len) {
|
|
100
|
1962 ctx->output = 1;
|
|
178
|
1963 ctx->output_chosen = 1;
|
|
100
|
1964
|
|
|
1965 } else {
|
|
|
1966 ctx->output = 0;
|
|
|
1967 }
|
|
|
1968
|
|
178
|
1969 ctx->conditional = NGX_HTTP_SSI_COND_IF;
|
|
|
1970
|
|
100
|
1971 return NGX_OK;
|
|
|
1972 }
|
|
|
1973
|
|
|
1974 if (p < last && *p == '=') {
|
|
|
1975 negative = 0;
|
|
|
1976 p++;
|
|
|
1977
|
|
|
1978 } else if (p + 1 < last && *p == '!' && *(p + 1) == '=') {
|
|
|
1979 negative = 1;
|
|
|
1980 p += 2;
|
|
|
1981
|
|
|
1982 } else {
|
|
|
1983 goto invalid_expression;
|
|
|
1984 }
|
|
|
1985
|
|
|
1986 while (p < last && *p == ' ') {
|
|
|
1987 p++;
|
|
|
1988 }
|
|
|
1989
|
|
|
1990 if (p < last && *p == '/') {
|
|
|
1991 if (*(last - 1) != '/') {
|
|
|
1992 goto invalid_expression;
|
|
|
1993 }
|
|
|
1994
|
|
|
1995 noregex = 0;
|
|
178
|
1996 flags = NGX_HTTP_SSI_ADD_ZERO;
|
|
100
|
1997 last--;
|
|
|
1998 p++;
|
|
|
1999
|
|
|
2000 } else {
|
|
|
2001 noregex = 1;
|
|
178
|
2002 flags = 0;
|
|
|
2003
|
|
|
2004 if (p < last - 1 && p[0] == '\\' && p[1] == '/') {
|
|
200
|
2005 p++;
|
|
178
|
2006 }
|
|
100
|
2007 }
|
|
|
2008
|
|
|
2009 right.len = last - p;
|
|
|
2010 right.data = p;
|
|
|
2011
|
|
102
|
2012 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2013 "right: \"%V\"", &right);
|
|
|
2014
|
|
178
|
2015 if (ngx_http_ssi_evaluate_string(r, ctx, &right, flags) != NGX_OK) {
|
|
102
|
2016 return NGX_HTTP_SSI_ERROR;
|
|
100
|
2017 }
|
|
|
2018
|
|
102
|
2019 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2020 "evaluted right: \"%V\"", &right);
|
|
100
|
2021
|
|
|
2022 if (noregex) {
|
|
|
2023 if (left.len != right.len) {
|
|
|
2024 rc = -1;
|
|
|
2025
|
|
|
2026 } else {
|
|
|
2027 rc = ngx_strncmp(left.data, right.data, right.len);
|
|
|
2028 }
|
|
|
2029
|
|
|
2030 } else {
|
|
|
2031 #if (NGX_PCRE)
|
|
|
2032 err.len = NGX_MAX_CONF_ERRSTR;
|
|
|
2033 err.data = errstr;
|
|
|
2034
|
|
|
2035 right.data[right.len] = '\0';
|
|
|
2036
|
|
|
2037 regex = ngx_regex_compile(&right, 0, r->pool, &err);
|
|
|
2038
|
|
|
2039 if (regex == NULL) {
|
|
|
2040 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "%s", err.data);
|
|
|
2041 return NGX_HTTP_SSI_ERROR;
|
|
|
2042 }
|
|
|
2043
|
|
|
2044 rc = ngx_regex_exec(regex, &left, NULL, 0);
|
|
|
2045
|
|
|
2046 if (rc != NGX_REGEX_NO_MATCHED && rc < 0) {
|
|
|
2047 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
|
|
|
2048 ngx_regex_exec_n " failed: %d on \"%V\" using \"%V\"",
|
|
|
2049 rc, &left, &right);
|
|
|
2050 return NGX_HTTP_SSI_ERROR;
|
|
|
2051 }
|
|
|
2052 #else
|
|
|
2053 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
|
|
|
2054 "the using of the regex \"%V\" in SSI "
|
|
|
2055 "requires PCRE library", &right);
|
|
|
2056
|
|
|
2057 return NGX_HTTP_SSI_ERROR;
|
|
|
2058 #endif
|
|
|
2059 }
|
|
|
2060
|
|
|
2061 if ((rc == 0 && !negative) || (rc != 0 && negative)) {
|
|
58
|
2062 ctx->output = 1;
|
|
178
|
2063 ctx->output_chosen = 1;
|
|
58
|
2064
|
|
|
2065 } else {
|
|
|
2066 ctx->output = 0;
|
|
|
2067 }
|
|
|
2068
|
|
178
|
2069 ctx->conditional = NGX_HTTP_SSI_COND_IF;
|
|
|
2070
|
|
58
|
2071 return NGX_OK;
|
|
100
|
2072
|
|
|
2073 invalid_expression:
|
|
|
2074
|
|
|
2075 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
2076 "invalid expression in \"%V\"", expr);
|
|
|
2077
|
|
|
2078 return NGX_HTTP_SSI_ERROR;
|
|
58
|
2079 }
|
|
|
2080
|
|
|
2081
|
|
|
2082 static ngx_int_t
|
|
|
2083 ngx_http_ssi_else(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
|
|
|
2084 ngx_str_t **params)
|
|
|
2085 {
|
|
192
|
2086 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2087 "ssi else");
|
|
|
2088
|
|
178
|
2089 if (ctx->output_chosen) {
|
|
|
2090 ctx->output = 0;
|
|
|
2091 } else {
|
|
|
2092 ctx->output = 1;
|
|
|
2093 }
|
|
|
2094
|
|
|
2095 ctx->conditional = NGX_HTTP_SSI_COND_ELSE;
|
|
58
|
2096
|
|
|
2097 return NGX_OK;
|
|
|
2098 }
|
|
|
2099
|
|
|
2100
|
|
|
2101 static ngx_int_t
|
|
|
2102 ngx_http_ssi_endif(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
|
|
|
2103 ngx_str_t **params)
|
|
|
2104 {
|
|
192
|
2105 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2106 "ssi endif");
|
|
|
2107
|
|
58
|
2108 ctx->output = 1;
|
|
178
|
2109 ctx->output_chosen = 0;
|
|
|
2110 ctx->conditional = 0;
|
|
58
|
2111
|
|
|
2112 return NGX_OK;
|
|
|
2113 }
|
|
|
2114
|
|
|
2115
|
|
122
|
2116 static ngx_int_t
|
|
|
2117 ngx_http_ssi_date_gmt_local_variable(ngx_http_request_t *r,
|
|
|
2118 ngx_http_variable_value_t *v, uintptr_t gmt)
|
|
58
|
2119 {
|
|
122
|
2120 ngx_http_ssi_ctx_t *ctx;
|
|
|
2121 ngx_time_t *tp;
|
|
|
2122 struct tm tm;
|
|
|
2123 char buf[NGX_HTTP_SSI_DATE_LEN];
|
|
|
2124
|
|
126
|
2125 v->valid = 1;
|
|
122
|
2126 v->no_cachable = 0;
|
|
|
2127 v->not_found = 0;
|
|
58
|
2128
|
|
112
|
2129 tp = ngx_timeofday();
|
|
|
2130
|
|
58
|
2131 ctx = ngx_http_get_module_ctx(r, ngx_http_ssi_filter_module);
|
|
|
2132
|
|
|
2133 if (ctx->timefmt.len == sizeof("%s") - 1
|
|
|
2134 && ctx->timefmt.data[0] == '%' && ctx->timefmt.data[1] == 's')
|
|
|
2135 {
|
|
122
|
2136 v->data = ngx_palloc(r->pool, NGX_TIME_T_LEN);
|
|
|
2137 if (v->data == NULL) {
|
|
|
2138 return NGX_ERROR;
|
|
58
|
2139 }
|
|
|
2140
|
|
122
|
2141 v->len = ngx_sprintf(v->data, "%T", tp->sec + (gmt ? 0 : tp->gmtoff))
|
|
|
2142 - v->data;
|
|
|
2143 return NGX_OK;
|
|
58
|
2144 }
|
|
|
2145
|
|
|
2146 if (gmt) {
|
|
112
|
2147 ngx_libc_gmtime(tp->sec, &tm);
|
|
58
|
2148 } else {
|
|
112
|
2149 ngx_libc_localtime(tp->sec, &tm);
|
|
58
|
2150 }
|
|
|
2151
|
|
122
|
2152 v->len = strftime(buf, NGX_HTTP_SSI_DATE_LEN,
|
|
|
2153 (char *) ctx->timefmt.data, &tm);
|
|
|
2154 if (v->len == 0) {
|
|
|
2155 return NGX_ERROR;
|
|
58
|
2156 }
|
|
|
2157
|
|
122
|
2158 v->data = ngx_palloc(r->pool, v->len);
|
|
|
2159 if (v->data == NULL) {
|
|
|
2160 return NGX_ERROR;
|
|
58
|
2161 }
|
|
|
2162
|
|
122
|
2163 ngx_memcpy(v->data, buf, v->len);
|
|
|
2164
|
|
|
2165 return NGX_OK;
|
|
58
|
2166 }
|
|
|
2167
|
|
|
2168
|
|
76
|
2169 static char *
|
|
|
2170 ngx_http_ssi_types(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
2171 {
|
|
146
|
2172 ngx_http_ssi_loc_conf_t *slcf = conf;
|
|
76
|
2173
|
|
|
2174 ngx_str_t *value, *type;
|
|
|
2175 ngx_uint_t i;
|
|
|
2176
|
|
146
|
2177 if (slcf->types == NULL) {
|
|
|
2178 slcf->types = ngx_array_create(cf->pool, 4, sizeof(ngx_str_t));
|
|
|
2179 if (slcf->types == NULL) {
|
|
76
|
2180 return NGX_CONF_ERROR;
|
|
|
2181 }
|
|
|
2182
|
|
146
|
2183 type = ngx_array_push(slcf->types);
|
|
76
|
2184 if (type == NULL) {
|
|
|
2185 return NGX_CONF_ERROR;
|
|
|
2186 }
|
|
|
2187
|
|
|
2188 type->len = sizeof("text/html") - 1;
|
|
|
2189 type->data = (u_char *) "text/html";
|
|
|
2190 }
|
|
|
2191
|
|
|
2192 value = cf->args->elts;
|
|
|
2193
|
|
|
2194 for (i = 1; i < cf->args->nelts; i++) {
|
|
|
2195
|
|
|
2196 if (ngx_strcmp(value[i].data, "text/html") == 0) {
|
|
|
2197 continue;
|
|
|
2198 }
|
|
|
2199
|
|
146
|
2200 type = ngx_array_push(slcf->types);
|
|
76
|
2201 if (type == NULL) {
|
|
|
2202 return NGX_CONF_ERROR;
|
|
|
2203 }
|
|
|
2204
|
|
|
2205 type->len = value[i].len;
|
|
|
2206
|
|
|
2207 type->data = ngx_palloc(cf->pool, type->len + 1);
|
|
|
2208 if (type->data == NULL) {
|
|
|
2209 return NGX_CONF_ERROR;
|
|
|
2210 }
|
|
|
2211
|
|
|
2212 ngx_cpystrn(type->data, value[i].data, type->len + 1);
|
|
|
2213 }
|
|
|
2214
|
|
|
2215 return NGX_CONF_OK;
|
|
|
2216 }
|
|
|
2217
|
|
|
2218
|
|
58
|
2219 static ngx_int_t
|
|
146
|
2220 ngx_http_ssi_preconfiguration(ngx_conf_t *cf)
|
|
58
|
2221 {
|
|
146
|
2222 ngx_int_t rc;
|
|
|
2223 ngx_http_variable_t *var, *v;
|
|
|
2224 ngx_http_ssi_command_t *cmd;
|
|
|
2225 ngx_http_ssi_main_conf_t *smcf;
|
|
58
|
2226
|
|
|
2227 for (v = ngx_http_ssi_vars; v->name.len; v++) {
|
|
|
2228 var = ngx_http_add_variable(cf, &v->name, v->flags);
|
|
|
2229 if (var == NULL) {
|
|
|
2230 return NGX_ERROR;
|
|
|
2231 }
|
|
|
2232
|
|
186
|
2233 var->get_handler = v->get_handler;
|
|
58
|
2234 var->data = v->data;
|
|
|
2235 }
|
|
|
2236
|
|
146
|
2237 smcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_ssi_filter_module);
|
|
|
2238
|
|
|
2239 for (cmd = ngx_http_ssi_commands; cmd->name.len; cmd++) {
|
|
|
2240 rc = ngx_hash_add_key(&smcf->commands, &cmd->name, cmd,
|
|
|
2241 NGX_HASH_READONLY_KEY);
|
|
|
2242
|
|
|
2243 if (rc == NGX_OK) {
|
|
|
2244 continue;
|
|
|
2245 }
|
|
|
2246
|
|
|
2247 if (rc == NGX_BUSY) {
|
|
|
2248 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
2249 "conflicting SSI command \"%V\"", &cmd->name);
|
|
|
2250 }
|
|
|
2251
|
|
|
2252 return NGX_ERROR;
|
|
|
2253 }
|
|
|
2254
|
|
126
|
2255 return NGX_OK;
|
|
58
|
2256 }
|
|
|
2257
|
|
|
2258
|
|
46
|
2259 static void *
|
|
146
|
2260 ngx_http_ssi_create_main_conf(ngx_conf_t *cf)
|
|
|
2261 {
|
|
|
2262 ngx_http_ssi_main_conf_t *smcf;
|
|
|
2263
|
|
|
2264 smcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_ssi_main_conf_t));
|
|
|
2265 if (smcf == NULL) {
|
|
|
2266 return NGX_CONF_ERROR;
|
|
|
2267 }
|
|
|
2268
|
|
|
2269 smcf->commands.pool = cf->pool;
|
|
|
2270 smcf->commands.temp_pool = cf->temp_pool;
|
|
|
2271
|
|
|
2272 if (ngx_hash_keys_array_init(&smcf->commands, NGX_HASH_SMALL) != NGX_OK) {
|
|
|
2273 return NGX_CONF_ERROR;
|
|
|
2274 }
|
|
|
2275
|
|
|
2276 return smcf;
|
|
|
2277 }
|
|
|
2278
|
|
|
2279
|
|
|
2280 static char *
|
|
|
2281 ngx_http_ssi_init_main_conf(ngx_conf_t *cf, void *conf)
|
|
|
2282 {
|
|
|
2283 ngx_http_ssi_main_conf_t *smcf = conf;
|
|
|
2284
|
|
|
2285 ngx_hash_init_t hash;
|
|
|
2286
|
|
|
2287 hash.hash = &smcf->hash;
|
|
|
2288 hash.key = ngx_hash_key;
|
|
|
2289 hash.max_size = 1024;
|
|
|
2290 hash.bucket_size = ngx_cacheline_size;
|
|
|
2291 hash.name = "ssi_command_hash";
|
|
|
2292 hash.pool = cf->pool;
|
|
|
2293 hash.temp_pool = NULL;
|
|
|
2294
|
|
|
2295 if (ngx_hash_init(&hash, smcf->commands.keys.elts,
|
|
|
2296 smcf->commands.keys.nelts)
|
|
|
2297 != NGX_OK)
|
|
|
2298 {
|
|
|
2299 return NGX_CONF_ERROR;
|
|
|
2300 }
|
|
|
2301
|
|
|
2302 return NGX_CONF_OK;
|
|
|
2303 }
|
|
|
2304
|
|
|
2305
|
|
|
2306 static void *
|
|
46
|
2307 ngx_http_ssi_create_conf(ngx_conf_t *cf)
|
|
|
2308 {
|
|
146
|
2309 ngx_http_ssi_loc_conf_t *slcf;
|
|
|
2310
|
|
|
2311 slcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_ssi_loc_conf_t));
|
|
|
2312 if (slcf == NULL) {
|
|
46
|
2313 return NGX_CONF_ERROR;
|
|
|
2314 }
|
|
|
2315
|
|
76
|
2316 /*
|
|
|
2317 * set by ngx_pcalloc():
|
|
|
2318 *
|
|
|
2319 * conf->types = NULL;
|
|
|
2320 */
|
|
|
2321
|
|
146
|
2322 slcf->enable = NGX_CONF_UNSET;
|
|
|
2323 slcf->silent_errors = NGX_CONF_UNSET;
|
|
|
2324 slcf->ignore_recycled_buffers = NGX_CONF_UNSET;
|
|
|
2325
|
|
|
2326 slcf->min_file_chunk = NGX_CONF_UNSET_SIZE;
|
|
|
2327 slcf->value_len = NGX_CONF_UNSET_SIZE;
|
|
|
2328
|
|
|
2329 return slcf;
|
|
46
|
2330 }
|
|
|
2331
|
|
|
2332
|
|
|
2333 static char *
|
|
|
2334 ngx_http_ssi_merge_conf(ngx_conf_t *cf, void *parent, void *child)
|
|
|
2335 {
|
|
146
|
2336 ngx_http_ssi_loc_conf_t *prev = parent;
|
|
|
2337 ngx_http_ssi_loc_conf_t *conf = child;
|
|
46
|
2338
|
|
76
|
2339 ngx_str_t *type;
|
|
|
2340
|
|
46
|
2341 ngx_conf_merge_value(conf->enable, prev->enable, 0);
|
|
|
2342 ngx_conf_merge_value(conf->silent_errors, prev->silent_errors, 0);
|
|
58
|
2343 ngx_conf_merge_value(conf->ignore_recycled_buffers,
|
|
|
2344 prev->ignore_recycled_buffers, 0);
|
|
46
|
2345
|
|
|
2346 ngx_conf_merge_size_value(conf->min_file_chunk, prev->min_file_chunk, 1024);
|
|
|
2347 ngx_conf_merge_size_value(conf->value_len, prev->value_len, 256);
|
|
|
2348
|
|
76
|
2349 if (conf->types == NULL) {
|
|
|
2350 if (prev->types == NULL) {
|
|
|
2351 conf->types = ngx_array_create(cf->pool, 1, sizeof(ngx_str_t));
|
|
|
2352 if (conf->types == NULL) {
|
|
|
2353 return NGX_CONF_ERROR;
|
|
|
2354 }
|
|
|
2355
|
|
|
2356 type = ngx_array_push(conf->types);
|
|
|
2357 if (type == NULL) {
|
|
|
2358 return NGX_CONF_ERROR;
|
|
|
2359 }
|
|
|
2360
|
|
|
2361 type->len = sizeof("text/html") - 1;
|
|
|
2362 type->data = (u_char *) "text/html";
|
|
|
2363
|
|
|
2364 } else {
|
|
|
2365 conf->types = prev->types;
|
|
|
2366 }
|
|
|
2367 }
|
|
|
2368
|
|
46
|
2369 return NGX_CONF_OK;
|
|
|
2370 }
|
|
|
2371
|
|
|
2372
|
|
|
2373 static ngx_int_t
|
|
|
2374 ngx_http_ssi_filter_init(ngx_cycle_t *cycle)
|
|
|
2375 {
|
|
|
2376 ngx_http_next_header_filter = ngx_http_top_header_filter;
|
|
|
2377 ngx_http_top_header_filter = ngx_http_ssi_header_filter;
|
|
|
2378
|
|
|
2379 ngx_http_next_body_filter = ngx_http_top_body_filter;
|
|
|
2380 ngx_http_top_body_filter = ngx_http_ssi_body_filter;
|
|
|
2381
|
|
|
2382 return NGX_OK;
|
|
|
2383 }
|
