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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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58
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16
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46
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17
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18 typedef struct {
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146
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19 ngx_flag_t enable;
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20 ngx_flag_t silent_errors;
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21 ngx_flag_t ignore_recycled_buffers;
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22
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23 ngx_array_t *types; /* array of ngx_str_t */
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24
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25 size_t min_file_chunk;
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26 size_t value_len;
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27 } ngx_http_ssi_loc_conf_t;
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102
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28
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29
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30 typedef struct {
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146
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31 ngx_str_t name;
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32 ngx_str_t value;
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33 } ngx_http_ssi_var_t;
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46
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34
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35
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36 typedef enum {
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37 ssi_start_state = 0,
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38 ssi_tag_state,
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39 ssi_comment0_state,
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40 ssi_comment1_state,
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41 ssi_sharp_state,
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42 ssi_precommand_state,
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43 ssi_command_state,
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44 ssi_preparam_state,
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45 ssi_param_state,
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46 ssi_preequal_state,
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47 ssi_prevalue_state,
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48 ssi_double_quoted_value_state,
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49 ssi_quoted_value_state,
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50 ssi_quoted_symbol_state,
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51 ssi_postparam_state,
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52 ssi_comment_end0_state,
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53 ssi_comment_end1_state,
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54 ssi_error_state,
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55 ssi_error_end0_state,
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56 ssi_error_end1_state
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57 } ngx_http_ssi_state_e;
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58
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59
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58
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60 static ngx_int_t ngx_http_ssi_output(ngx_http_request_t *r,
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61 ngx_http_ssi_ctx_t *ctx);
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46
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62 static ngx_int_t ngx_http_ssi_parse(ngx_http_request_t *r,
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63 ngx_http_ssi_ctx_t *ctx);
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102
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64 static ngx_str_t *ngx_http_ssi_get_variable(ngx_http_request_t *r,
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65 ngx_str_t *name);
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66 static ngx_int_t ngx_http_ssi_evaluate_string(ngx_http_request_t *r,
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67 ngx_http_ssi_ctx_t *ctx, ngx_str_t *text, ngx_uint_t flags);
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68
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69 static ngx_int_t ngx_http_ssi_include(ngx_http_request_t *r,
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70 ngx_http_ssi_ctx_t *ctx, ngx_str_t **params);
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46
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71 static ngx_int_t ngx_http_ssi_echo(ngx_http_request_t *r,
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72 ngx_http_ssi_ctx_t *ctx, ngx_str_t **params);
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58
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73 static ngx_int_t ngx_http_ssi_config(ngx_http_request_t *r,
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74 ngx_http_ssi_ctx_t *ctx, ngx_str_t **params);
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102
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75 static ngx_int_t ngx_http_ssi_set(ngx_http_request_t *r,
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58
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76 ngx_http_ssi_ctx_t *ctx, ngx_str_t **params);
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77 static ngx_int_t ngx_http_ssi_if(ngx_http_request_t *r,
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78 ngx_http_ssi_ctx_t *ctx, ngx_str_t **params);
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79 static ngx_int_t ngx_http_ssi_else(ngx_http_request_t *r,
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80 ngx_http_ssi_ctx_t *ctx, ngx_str_t **params);
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81 static ngx_int_t ngx_http_ssi_endif(ngx_http_request_t *r,
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82 ngx_http_ssi_ctx_t *ctx, ngx_str_t **params);
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46
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83
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122
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84 static ngx_int_t ngx_http_ssi_date_gmt_local_variable(ngx_http_request_t *r,
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85 ngx_http_variable_value_t *v, uintptr_t gmt);
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58
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86
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76
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87 static char *ngx_http_ssi_types(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
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88
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146
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89 static ngx_int_t ngx_http_ssi_preconfiguration(ngx_conf_t *cf);
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90 static void *ngx_http_ssi_create_main_conf(ngx_conf_t *cf);
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91 static char *ngx_http_ssi_init_main_conf(ngx_conf_t *cf, void *conf);
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46
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92 static void *ngx_http_ssi_create_conf(ngx_conf_t *cf);
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93 static char *ngx_http_ssi_merge_conf(ngx_conf_t *cf,
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94 void *parent, void *child);
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95 static ngx_int_t ngx_http_ssi_filter_init(ngx_cycle_t *cycle);
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96
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97
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98 static ngx_command_t ngx_http_ssi_filter_commands[] = {
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99
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100 { ngx_string("ssi"),
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101 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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102 ngx_conf_set_flag_slot,
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103 NGX_HTTP_LOC_CONF_OFFSET,
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146
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104 offsetof(ngx_http_ssi_loc_conf_t, enable),
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105 NULL },
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106
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107 { ngx_string("ssi_silent_errors"),
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108 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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109 ngx_conf_set_flag_slot,
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110 NGX_HTTP_LOC_CONF_OFFSET,
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146
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111 offsetof(ngx_http_ssi_loc_conf_t, silent_errors),
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112 NULL },
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113
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58
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114 { ngx_string("ssi_ignore_recycled_buffers"),
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115 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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116 ngx_conf_set_flag_slot,
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117 NGX_HTTP_LOC_CONF_OFFSET,
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146
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118 offsetof(ngx_http_ssi_loc_conf_t, ignore_recycled_buffers),
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119 NULL },
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120
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46
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121 { ngx_string("ssi_min_file_chunk"),
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122 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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123 ngx_conf_set_size_slot,
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124 NGX_HTTP_LOC_CONF_OFFSET,
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146
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125 offsetof(ngx_http_ssi_loc_conf_t, min_file_chunk),
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126 NULL },
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127
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138
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128 { ngx_string("ssi_value_length"),
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129 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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130 ngx_conf_set_size_slot,
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131 NGX_HTTP_LOC_CONF_OFFSET,
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146
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132 offsetof(ngx_http_ssi_loc_conf_t, value_len),
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138
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133 NULL },
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134
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76
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135 { ngx_string("ssi_types"),
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136 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
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137 ngx_http_ssi_types,
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138 NGX_HTTP_LOC_CONF_OFFSET,
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139 0,
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140 NULL },
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141
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46
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142 ngx_null_command
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143 };
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144
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145
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126
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146
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46
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147 static ngx_http_module_t ngx_http_ssi_filter_module_ctx = {
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146
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148 ngx_http_ssi_preconfiguration, /* preconfiguration */
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58
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149 NULL, /* postconfiguration */
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46
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150
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146
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151 ngx_http_ssi_create_main_conf, /* create main configuration */
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152 ngx_http_ssi_init_main_conf, /* init main configuration */
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46
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153
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154 NULL, /* create server configuration */
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155 NULL, /* merge server configuration */
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156
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157 ngx_http_ssi_create_conf, /* create location configuration */
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158 ngx_http_ssi_merge_conf /* merge location configuration */
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126
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159 };
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46
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160
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161
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162 ngx_module_t ngx_http_ssi_filter_module = {
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58
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163 NGX_MODULE_V1,
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164 &ngx_http_ssi_filter_module_ctx, /* module context */
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165 ngx_http_ssi_filter_commands, /* module directives */
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166 NGX_HTTP_MODULE, /* module type */
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90
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167 NULL, /* init master */
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168 ngx_http_ssi_filter_init, /* init module */
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90
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169 NULL, /* init process */
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170 NULL, /* init thread */
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171 NULL, /* exit thread */
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172 NULL, /* exit process */
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173 NULL, /* exit master */
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174 NGX_MODULE_V1_PADDING
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46
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175 };
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176
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177
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118
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178 static ngx_http_output_header_filter_pt ngx_http_next_header_filter;
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179 static ngx_http_output_body_filter_pt ngx_http_next_body_filter;
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46
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180
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181
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182 static u_char ngx_http_ssi_string[] = "<!--";
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183
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184 static ngx_str_t ngx_http_ssi_none = ngx_string("(none)");
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185
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102
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186 #define NGX_HTTP_SSI_INCLUDE_VIRTUAL 0
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187 #define NGX_HTTP_SSI_INCLUDE_FILE 1
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46
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188
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58
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189 #define NGX_HTTP_SSI_ECHO_VAR 0
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190 #define NGX_HTTP_SSI_ECHO_DEFAULT 1
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191
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96
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192 #define NGX_HTTP_SSI_CONFIG_ERRMSG 0
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193 #define NGX_HTTP_SSI_CONFIG_TIMEFMT 1
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58
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194
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102
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195 #define NGX_HTTP_SSI_SET_VAR 0
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196 #define NGX_HTTP_SSI_SET_VALUE 1
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58
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197
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198 #define NGX_HTTP_SSI_IF_EXPR 0
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199
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46
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200
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102
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201 static ngx_http_ssi_param_t ngx_http_ssi_include_params[] = {
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146
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202 { ngx_string("virtual"), NGX_HTTP_SSI_INCLUDE_VIRTUAL, 0, 0 },
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203 { ngx_string("file"), NGX_HTTP_SSI_INCLUDE_FILE, 0, 0 },
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204 { ngx_null_string, 0, 0, 0 }
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102
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205 };
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206
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207
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46
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208 static ngx_http_ssi_param_t ngx_http_ssi_echo_params[] = {
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146
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209 { ngx_string("var"), NGX_HTTP_SSI_ECHO_VAR, 1, 0 },
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210 { ngx_string("default"), NGX_HTTP_SSI_ECHO_DEFAULT, 0, 0 },
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211 { ngx_null_string, 0, 0, 0 }
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212 };
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213
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58
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214
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215 static ngx_http_ssi_param_t ngx_http_ssi_config_params[] = {
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146
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216 { ngx_string("errmsg"), NGX_HTTP_SSI_CONFIG_ERRMSG, 0, 0 },
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217 { ngx_string("timefmt"), NGX_HTTP_SSI_CONFIG_TIMEFMT, 0, 0 },
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218 { ngx_null_string, 0, 0, 0 }
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58
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219 };
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220
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221
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102
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222 static ngx_http_ssi_param_t ngx_http_ssi_set_params[] = {
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146
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223 { ngx_string("var"), NGX_HTTP_SSI_SET_VAR, 1, 0 },
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224 { ngx_string("value"), NGX_HTTP_SSI_SET_VALUE, 1, 0 },
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225 { ngx_null_string, 0, 0, 0 }
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102
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226 };
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227
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228
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58
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229 static ngx_http_ssi_param_t ngx_http_ssi_if_params[] = {
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146
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230 { ngx_string("expr"), NGX_HTTP_SSI_IF_EXPR, 1, 0 },
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231 { ngx_null_string, 0, 0, 0 }
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58
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232 };
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233
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234
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235 static ngx_http_ssi_param_t ngx_http_ssi_no_params[] = {
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146
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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_command_t ngx_http_ssi_commands[] = {
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102
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241 { ngx_string("include"), ngx_http_ssi_include,
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242 ngx_http_ssi_include_params, 0, 1 },
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58
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243 { ngx_string("echo"), ngx_http_ssi_echo, ngx_http_ssi_echo_params, 0, 0 },
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244 { ngx_string("config"), ngx_http_ssi_config,
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245 ngx_http_ssi_config_params, 0, 0 },
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102
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246 { ngx_string("set"), ngx_http_ssi_set, ngx_http_ssi_set_params, 0, 0 },
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58
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247
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248 { ngx_string("if"), ngx_http_ssi_if, ngx_http_ssi_if_params, 0, 0 },
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249 { ngx_string("else"), ngx_http_ssi_else, ngx_http_ssi_no_params, 1, 0 },
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250 { ngx_string("endif"), ngx_http_ssi_endif, ngx_http_ssi_no_params, 1, 0 },
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251
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252 { ngx_null_string, NULL, NULL, 0, 0 }
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46
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253 };
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254
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255
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58
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256 static ngx_http_variable_t ngx_http_ssi_vars[] = {
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257
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258 { ngx_string("date_local"), ngx_http_ssi_date_gmt_local_variable, 0,
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82
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259 NGX_HTTP_VAR_NOCACHABLE, 0 },
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58
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260
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261 { ngx_string("date_gmt"), ngx_http_ssi_date_gmt_local_variable, 1,
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82
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262 NGX_HTTP_VAR_NOCACHABLE, 0 },
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58
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263
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82
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264 { ngx_null_string, NULL, 0, 0, 0 }
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58
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265 };
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266
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267
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268
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46
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269 static ngx_int_t
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270 ngx_http_ssi_header_filter(ngx_http_request_t *r)
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271 {
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146
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272 ngx_uint_t i;
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273 ngx_str_t *type;
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274 ngx_http_ssi_ctx_t *ctx;
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275 ngx_http_ssi_loc_conf_t *slcf;
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276
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277 slcf = ngx_http_get_module_loc_conf(r, ngx_http_ssi_filter_module);
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278
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279 if (!slcf->enable
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126
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280 || r->headers_out.content_type.len == 0
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281 || r->headers_out.content_length_n == 0)
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46
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282 {
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283 return ngx_http_next_header_filter(r);
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284 }
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285
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286
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146
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287 type = slcf->types->elts;
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288 for (i = 0; i < slcf->types->nelts; i++) {
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76
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289 if (r->headers_out.content_type.len >= type[i].len
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290 && ngx_strncasecmp(r->headers_out.content_type.data,
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291 type[i].data, type[i].len) == 0)
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292 {
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293 goto found;
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294 }
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295 }
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296
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297 return ngx_http_next_header_filter(r);
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298
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299
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300 found:
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301
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48
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302 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_ssi_ctx_t));
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303 if (ctx == NULL) {
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46
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304 return NGX_ERROR;
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305 }
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306
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307 ngx_http_set_ctx(r, ctx, ngx_http_ssi_filter_module);
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308
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309
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146
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310 ctx->value_len = slcf->value_len;
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46
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311 ctx->last_out = &ctx->out;
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312
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58
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313 ctx->output = 1;
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314
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46
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315 ctx->params.elts = ctx->params_array;
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316 ctx->params.size = sizeof(ngx_table_elt_t);
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317 ctx->params.nalloc = NGX_HTTP_SSI_PARAMS_N;
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318 ctx->params.pool = r->pool;
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319
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58
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320 ctx->timefmt.len = sizeof("%A, %d-%b-%Y %H:%M:%S %Z") - 1;
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321 ctx->timefmt.data = (u_char *) "%A, %d-%b-%Y %H:%M:%S %Z";
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46
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322
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96
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323 ctx->errmsg.len =
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324 sizeof("[an error occurred while processing the directive]") - 1;
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325 ctx->errmsg.data = (u_char *)
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326 "[an error occurred while processing the directive]";
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327
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46
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328 r->filter_need_in_memory = 1;
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329
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146
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330 if (r == r->main) {
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126
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331 ngx_http_clear_content_length(r);
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332 ngx_http_clear_last_modified(r);
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58
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333 }
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334
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46
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335 return ngx_http_next_header_filter(r);
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336 }
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337
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338
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339 static ngx_int_t
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340 ngx_http_ssi_body_filter(ngx_http_request_t *r, ngx_chain_t *in)
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341 {
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146
|
342 ngx_int_t rc;
|
|
|
343 ngx_buf_t *b;
|
|
|
344 ngx_uint_t i, index;
|
|
|
345 ngx_chain_t *cl;
|
|
|
346 ngx_table_elt_t *param;
|
|
|
347 ngx_connection_t *c;
|
|
|
348 ngx_http_ssi_ctx_t *ctx;
|
|
|
349 ngx_http_ssi_param_t *prm;
|
|
|
350 ngx_http_ssi_command_t *cmd;
|
|
|
351 ngx_http_ssi_loc_conf_t *slcf;
|
|
|
352 ngx_http_ssi_main_conf_t *smcf;
|
|
148
|
353 ngx_str_t *params[NGX_HTTP_SSI_MAX_PARAMS + 1];
|
|
46
|
354
|
|
|
355 ctx = ngx_http_get_module_ctx(r, ngx_http_ssi_filter_module);
|
|
|
356
|
|
48
|
357 if (ctx == NULL || (in == NULL && ctx->in == NULL && ctx->busy == NULL)) {
|
|
46
|
358 return ngx_http_next_body_filter(r, in);
|
|
|
359 }
|
|
|
360
|
|
|
361 /* add the incoming chain to the chain ctx->in */
|
|
|
362
|
|
|
363 if (in) {
|
|
|
364 if (ngx_chain_add_copy(r->pool, &ctx->in, in) == NGX_ERROR) {
|
|
|
365 return NGX_ERROR;
|
|
|
366 }
|
|
|
367 }
|
|
|
368
|
|
146
|
369 slcf = ngx_http_get_module_loc_conf(r, ngx_http_ssi_filter_module);
|
|
46
|
370
|
|
58
|
371 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
372 "http ssi filter \"%V\"", &r->uri);
|
|
46
|
373
|
|
48
|
374 while (ctx->in || ctx->buf) {
|
|
46
|
375
|
|
48
|
376 if (ctx->buf == NULL ){
|
|
|
377 ctx->buf = ctx->in->buf;
|
|
|
378 ctx->in = ctx->in->next;
|
|
|
379 ctx->pos = ctx->buf->pos;
|
|
|
380 }
|
|
46
|
381
|
|
|
382 if (ctx->state == ssi_start_state) {
|
|
|
383 ctx->copy_start = ctx->pos;
|
|
|
384 ctx->copy_end = ctx->pos;
|
|
|
385 }
|
|
|
386
|
|
48
|
387 b = NULL;
|
|
|
388
|
|
46
|
389 while (ctx->pos < ctx->buf->last) {
|
|
|
390
|
|
|
391 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
392 "saved: %d state: %d", ctx->saved, ctx->state);
|
|
|
393
|
|
|
394 rc = ngx_http_ssi_parse(r, ctx);
|
|
|
395
|
|
|
396 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
397 "parse: %d, looked: %d %p-%p",
|
|
|
398 rc, ctx->looked, ctx->copy_start, ctx->copy_end);
|
|
|
399
|
|
|
400 if (rc == NGX_ERROR) {
|
|
|
401 return rc;
|
|
|
402 }
|
|
|
403
|
|
|
404 if (ctx->copy_start != ctx->copy_end) {
|
|
|
405
|
|
58
|
406 if (ctx->output) {
|
|
|
407
|
|
|
408 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
409 "saved: %d", ctx->saved);
|
|
|
410
|
|
|
411 if (ctx->saved) {
|
|
|
412
|
|
|
413 if (ctx->free) {
|
|
|
414 cl = ctx->free;
|
|
|
415 ctx->free = ctx->free->next;
|
|
|
416 b = cl->buf;
|
|
|
417 ngx_memzero(b, sizeof(ngx_buf_t));
|
|
46
|
418
|
|
58
|
419 } else {
|
|
|
420 b = ngx_calloc_buf(r->pool);
|
|
|
421 if (b == NULL) {
|
|
|
422 return NGX_ERROR;
|
|
|
423 }
|
|
|
424
|
|
|
425 cl = ngx_alloc_chain_link(r->pool);
|
|
|
426 if (cl == NULL) {
|
|
|
427 return NGX_ERROR;
|
|
|
428 }
|
|
|
429
|
|
|
430 cl->buf = b;
|
|
|
431 }
|
|
|
432
|
|
|
433 b->memory = 1;
|
|
|
434 b->pos = ngx_http_ssi_string;
|
|
|
435 b->last = ngx_http_ssi_string + ctx->saved;
|
|
|
436
|
|
|
437 *ctx->last_out = cl;
|
|
|
438 ctx->last_out = &cl->next;
|
|
|
439
|
|
|
440 ctx->saved = 0;
|
|
|
441 }
|
|
48
|
442
|
|
|
443 if (ctx->free) {
|
|
|
444 cl = ctx->free;
|
|
|
445 ctx->free = ctx->free->next;
|
|
|
446 b = cl->buf;
|
|
|
447
|
|
|
448 } else {
|
|
58
|
449 b = ngx_alloc_buf(r->pool);
|
|
48
|
450 if (b == NULL) {
|
|
|
451 return NGX_ERROR;
|
|
|
452 }
|
|
|
453
|
|
|
454 cl = ngx_alloc_chain_link(r->pool);
|
|
|
455 if (cl == NULL) {
|
|
|
456 return NGX_ERROR;
|
|
|
457 }
|
|
|
458
|
|
|
459 cl->buf = b;
|
|
46
|
460 }
|
|
|
461
|
|
58
|
462 ngx_memcpy(b, ctx->buf, sizeof(ngx_buf_t));
|
|
|
463
|
|
62
|
464 b->pos = ctx->copy_start;
|
|
|
465 b->last = ctx->copy_end;
|
|
|
466 b->shadow = NULL;
|
|
58
|
467 b->last_buf = 0;
|
|
|
468 b->recycled = 0;
|
|
46
|
469
|
|
58
|
470 if (b->in_file) {
|
|
146
|
471 if (slcf->min_file_chunk < (size_t) (b->last - b->pos))
|
|
58
|
472 {
|
|
|
473 b->file_last = b->file_pos + (b->last - b->start);
|
|
|
474 b->file_pos += b->pos - b->start;
|
|
|
475
|
|
|
476 } else {
|
|
|
477 b->in_file = 0;
|
|
|
478 }
|
|
|
479 }
|
|
|
480
|
|
|
481 cl->next = NULL;
|
|
46
|
482 *ctx->last_out = cl;
|
|
|
483 ctx->last_out = &cl->next;
|
|
|
484
|
|
58
|
485 } else {
|
|
46
|
486 ctx->saved = 0;
|
|
|
487 }
|
|
|
488 }
|
|
|
489
|
|
|
490 if (ctx->state == ssi_start_state) {
|
|
|
491 ctx->copy_start = ctx->pos;
|
|
|
492 ctx->copy_end = ctx->pos;
|
|
|
493
|
|
|
494 } else {
|
|
|
495 ctx->copy_start = NULL;
|
|
|
496 ctx->copy_end = NULL;
|
|
|
497 }
|
|
|
498
|
|
|
499 if (rc == NGX_AGAIN) {
|
|
|
500 continue;
|
|
|
501 }
|
|
|
502
|
|
|
503
|
|
122
|
504 b = NULL;
|
|
|
505
|
|
46
|
506 if (rc == NGX_OK) {
|
|
|
507
|
|
146
|
508 smcf = ngx_http_get_module_main_conf(r,
|
|
|
509 ngx_http_ssi_filter_module);
|
|
|
510
|
|
|
511 cmd = ngx_hash_find(&smcf->hash, ctx->key, ctx->command.data,
|
|
|
512 ctx->command.len);
|
|
|
513
|
|
|
514 if (cmd == NULL) {
|
|
|
515 if (ctx->output) {
|
|
|
516 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
517 "invalid SSI command: \"%V\"",
|
|
|
518 &ctx->command);
|
|
|
519 goto ssi_error;
|
|
46
|
520 }
|
|
|
521
|
|
146
|
522 continue;
|
|
46
|
523 }
|
|
|
524
|
|
58
|
525 if (!ctx->output && !cmd->conditional) {
|
|
|
526 continue;
|
|
|
527 }
|
|
|
528
|
|
146
|
529 if (ctx->params.nelts > NGX_HTTP_SSI_MAX_PARAMS) {
|
|
|
530 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
531 "too many SSI command paramters: \"%V\"",
|
|
|
532 &ctx->command);
|
|
|
533 goto ssi_error;
|
|
|
534 }
|
|
|
535
|
|
46
|
536 ngx_memzero(params,
|
|
148
|
537 (NGX_HTTP_SSI_MAX_PARAMS + 1) * sizeof(ngx_str_t *));
|
|
46
|
538
|
|
|
539 param = ctx->params.elts;
|
|
|
540
|
|
|
541 for (i = 0; i < ctx->params.nelts; i++) {
|
|
|
542
|
|
|
543 for (prm = cmd->params; prm->name.len; prm++) {
|
|
|
544
|
|
|
545 if (param[i].key.len != prm->name.len
|
|
|
546 || ngx_strncmp(param[i].key.data, prm->name.data,
|
|
|
547 prm->name.len) != 0)
|
|
|
548 {
|
|
|
549 continue;
|
|
|
550 }
|
|
|
551
|
|
146
|
552 if (!prm->multiple) {
|
|
|
553 if (params[prm->index]) {
|
|
|
554 ngx_log_error(NGX_LOG_ERR,
|
|
|
555 r->connection->log, 0,
|
|
|
556 "duplicate \"%V\" parameter "
|
|
|
557 "in \"%V\" SSI command",
|
|
|
558 ¶m[i].key, &ctx->command);
|
|
|
559
|
|
|
560 goto ssi_error;
|
|
|
561 }
|
|
|
562
|
|
|
563 params[prm->index] = ¶m[i].value;
|
|
|
564
|
|
|
565 break;
|
|
46
|
566 }
|
|
|
567
|
|
146
|
568 for (index = prm->index; params[index]; index++) {
|
|
|
569 /* void */
|
|
|
570 }
|
|
|
571
|
|
|
572 params[index] = ¶m[i].value;
|
|
46
|
573
|
|
|
574 break;
|
|
|
575 }
|
|
|
576
|
|
|
577 if (prm->name.len == 0) {
|
|
|
578 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
579 "invalid parameter name: \"%V\" "
|
|
|
580 "in \"%V\" SSI command",
|
|
|
581 ¶m[i].key, &ctx->command);
|
|
|
582
|
|
|
583 goto ssi_error;
|
|
|
584 }
|
|
|
585 }
|
|
|
586
|
|
|
587 for (prm = cmd->params; prm->name.len; prm++) {
|
|
|
588 if (prm->mandatory && params[prm->index] == 0) {
|
|
|
589 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
590 "mandatory \"%V\" parameter is absent "
|
|
|
591 "in \"%V\" SSI command",
|
|
|
592 &prm->name, &ctx->command);
|
|
|
593
|
|
|
594 goto ssi_error;
|
|
|
595 }
|
|
|
596 }
|
|
|
597
|
|
58
|
598 if (cmd->flush && ctx->out) {
|
|
|
599 rc = ngx_http_ssi_output(r, ctx);
|
|
|
600
|
|
|
601 if (rc == NGX_ERROR) {
|
|
|
602 return NGX_ERROR;
|
|
|
603 }
|
|
|
604 }
|
|
|
605
|
|
118
|
606 c = r->connection;
|
|
|
607
|
|
|
608 rc = cmd->handler(r, ctx, params);
|
|
|
609
|
|
132
|
610 if (c->destroyed) {
|
|
118
|
611 return NGX_DONE;
|
|
|
612 }
|
|
|
613
|
|
|
614 if (rc == NGX_OK) {
|
|
46
|
615 continue;
|
|
|
616 }
|
|
132
|
617
|
|
|
618 if (rc == NGX_ERROR) {
|
|
|
619 return NGX_ERROR;
|
|
|
620 }
|
|
46
|
621 }
|
|
|
622
|
|
|
623
|
|
|
624 /* rc == NGX_HTTP_SSI_ERROR */
|
|
|
625
|
|
48
|
626 ssi_error:
|
|
46
|
627
|
|
146
|
628 if (slcf->silent_errors) {
|
|
46
|
629 continue;
|
|
|
630 }
|
|
|
631
|
|
48
|
632 if (ctx->free) {
|
|
|
633 cl = ctx->free;
|
|
|
634 ctx->free = ctx->free->next;
|
|
|
635 b = cl->buf;
|
|
|
636 ngx_memzero(b, sizeof(ngx_buf_t));
|
|
|
637
|
|
|
638 } else {
|
|
|
639 b = ngx_calloc_buf(r->pool);
|
|
|
640 if (b == NULL) {
|
|
|
641 return NGX_ERROR;
|
|
|
642 }
|
|
|
643
|
|
|
644 cl = ngx_alloc_chain_link(r->pool);
|
|
|
645 if (cl == NULL) {
|
|
|
646 return NGX_ERROR;
|
|
|
647 }
|
|
|
648
|
|
|
649 cl->buf = b;
|
|
46
|
650 }
|
|
|
651
|
|
|
652 b->memory = 1;
|
|
96
|
653 b->pos = ctx->errmsg.data;
|
|
|
654 b->last = ctx->errmsg.data + ctx->errmsg.len;
|
|
46
|
655
|
|
|
656 cl->next = NULL;
|
|
|
657 *ctx->last_out = cl;
|
|
|
658 ctx->last_out = &cl->next;
|
|
|
659
|
|
|
660 continue;
|
|
|
661 }
|
|
|
662
|
|
58
|
663 if (ctx->buf->last_buf || ctx->buf->recycled) {
|
|
48
|
664 if (b == NULL) {
|
|
|
665 if (ctx->free) {
|
|
|
666 cl = ctx->free;
|
|
|
667 ctx->free = ctx->free->next;
|
|
|
668 b = cl->buf;
|
|
|
669 ngx_memzero(b, sizeof(ngx_buf_t));
|
|
|
670
|
|
|
671 } else {
|
|
|
672 b = ngx_calloc_buf(r->pool);
|
|
|
673 if (b == NULL) {
|
|
|
674 return NGX_ERROR;
|
|
|
675 }
|
|
46
|
676
|
|
48
|
677 cl = ngx_alloc_chain_link(r->pool);
|
|
|
678 if (cl == NULL) {
|
|
|
679 return NGX_ERROR;
|
|
|
680 }
|
|
|
681
|
|
|
682 cl->buf = b;
|
|
|
683 }
|
|
|
684
|
|
58
|
685 b->sync = 1;
|
|
|
686
|
|
48
|
687 cl->next = NULL;
|
|
|
688 *ctx->last_out = cl;
|
|
|
689 ctx->last_out = &cl->next;
|
|
|
690 }
|
|
|
691
|
|
|
692 b->last_buf = ctx->buf->last_buf;
|
|
|
693 b->shadow = ctx->buf;
|
|
58
|
694
|
|
146
|
695 if (slcf->ignore_recycled_buffers == 0) {
|
|
58
|
696 b->recycled = ctx->buf->recycled;
|
|
|
697 }
|
|
46
|
698 }
|
|
|
699
|
|
48
|
700 ctx->buf = NULL;
|
|
|
701
|
|
46
|
702 ctx->saved = ctx->looked;
|
|
|
703 }
|
|
|
704
|
|
48
|
705 if (ctx->out == NULL && ctx->busy == NULL) {
|
|
46
|
706 return NGX_OK;
|
|
|
707 }
|
|
|
708
|
|
58
|
709 return ngx_http_ssi_output(r, ctx);
|
|
|
710 }
|
|
|
711
|
|
|
712
|
|
|
713 static ngx_int_t
|
|
|
714 ngx_http_ssi_output(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx)
|
|
|
715 {
|
|
|
716 ngx_int_t rc;
|
|
|
717 ngx_buf_t *b;
|
|
|
718 ngx_chain_t *cl;
|
|
|
719
|
|
46
|
720 rc = ngx_http_next_body_filter(r, ctx->out);
|
|
|
721
|
|
48
|
722 if (ctx->busy == NULL) {
|
|
|
723 ctx->busy = ctx->out;
|
|
|
724
|
|
|
725 } else {
|
|
|
726 for (cl = ctx->busy; cl->next; cl = cl->next) { /* void */ }
|
|
|
727 cl->next = ctx->out;
|
|
|
728 }
|
|
|
729
|
|
46
|
730 ctx->out = NULL;
|
|
|
731 ctx->last_out = &ctx->out;
|
|
|
732
|
|
48
|
733 while (ctx->busy) {
|
|
|
734
|
|
|
735 b = ctx->busy->buf;
|
|
|
736
|
|
|
737 if (ngx_buf_size(b) != 0) {
|
|
|
738 break;
|
|
|
739 }
|
|
|
740
|
|
|
741 #if (NGX_HAVE_WRITE_ZEROCOPY)
|
|
|
742 if (b->zerocopy_busy) {
|
|
|
743 break;
|
|
|
744 }
|
|
|
745 #endif
|
|
|
746
|
|
|
747 if (b->shadow) {
|
|
|
748 b->shadow->pos = b->shadow->last;
|
|
|
749 }
|
|
|
750
|
|
|
751 cl = ctx->busy;
|
|
|
752 ctx->busy = cl->next;
|
|
|
753 cl->next = ctx->free;
|
|
|
754 ctx->free = cl;
|
|
|
755 }
|
|
|
756
|
|
46
|
757 return rc;
|
|
|
758 }
|
|
|
759
|
|
|
760
|
|
|
761 static ngx_int_t
|
|
|
762 ngx_http_ssi_parse(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx)
|
|
|
763 {
|
|
158
|
764 u_char *p, *value, *last, *copy_end, ch;
|
|
46
|
765 size_t looked;
|
|
|
766 ngx_http_ssi_state_e state;
|
|
|
767
|
|
|
768 state = ctx->state;
|
|
|
769 looked = ctx->looked;
|
|
|
770 last = ctx->buf->last;
|
|
|
771 copy_end = ctx->copy_end;
|
|
|
772
|
|
|
773 for (p = ctx->pos; p < last; p++) {
|
|
|
774
|
|
|
775 ch = *p;
|
|
|
776
|
|
|
777 if (state == ssi_start_state) {
|
|
|
778
|
|
|
779 /* the tight loop */
|
|
|
780
|
|
48
|
781 for ( ;; ) {
|
|
|
782 if (ch == '<') {
|
|
|
783 copy_end = p;
|
|
|
784 looked = 1;
|
|
|
785 state = ssi_tag_state;
|
|
|
786
|
|
|
787 goto tag_started;
|
|
46
|
788 }
|
|
|
789
|
|
48
|
790 if (++p == last) {
|
|
|
791 break;
|
|
|
792 }
|
|
46
|
793
|
|
48
|
794 ch = *p;
|
|
46
|
795 }
|
|
|
796
|
|
|
797 ctx->pos = p;
|
|
|
798 ctx->looked = looked;
|
|
|
799 ctx->copy_end = p;
|
|
|
800
|
|
|
801 if (ctx->copy_start == NULL) {
|
|
|
802 ctx->copy_start = ctx->buf->pos;
|
|
|
803 }
|
|
|
804
|
|
|
805 return NGX_AGAIN;
|
|
|
806
|
|
48
|
807 tag_started:
|
|
|
808
|
|
46
|
809 continue;
|
|
|
810 }
|
|
|
811
|
|
|
812 switch (state) {
|
|
|
813
|
|
|
814 case ssi_start_state:
|
|
|
815 break;
|
|
|
816
|
|
|
817 case ssi_tag_state:
|
|
|
818 switch (ch) {
|
|
|
819 case '!':
|
|
|
820 looked = 2;
|
|
|
821 state = ssi_comment0_state;
|
|
|
822 break;
|
|
|
823
|
|
|
824 case '<':
|
|
|
825 copy_end = p;
|
|
|
826 break;
|
|
|
827
|
|
|
828 default:
|
|
|
829 copy_end = p;
|
|
|
830 looked = 0;
|
|
|
831 state = ssi_start_state;
|
|
|
832 break;
|
|
|
833 }
|
|
|
834
|
|
|
835 break;
|
|
|
836
|
|
|
837 case ssi_comment0_state:
|
|
|
838 switch (ch) {
|
|
|
839 case '-':
|
|
|
840 looked = 3;
|
|
|
841 state = ssi_comment1_state;
|
|
|
842 break;
|
|
|
843
|
|
|
844 case '<':
|
|
|
845 copy_end = p;
|
|
|
846 looked = 1;
|
|
|
847 state = ssi_tag_state;
|
|
|
848 break;
|
|
|
849
|
|
|
850 default:
|
|
|
851 copy_end = p;
|
|
|
852 looked = 0;
|
|
|
853 state = ssi_start_state;
|
|
|
854 break;
|
|
|
855 }
|
|
|
856
|
|
|
857 break;
|
|
|
858
|
|
|
859 case ssi_comment1_state:
|
|
|
860 switch (ch) {
|
|
|
861 case '-':
|
|
|
862 looked = 4;
|
|
|
863 state = ssi_sharp_state;
|
|
|
864 break;
|
|
|
865
|
|
|
866 case '<':
|
|
|
867 copy_end = p;
|
|
|
868 looked = 1;
|
|
|
869 state = ssi_tag_state;
|
|
|
870 break;
|
|
|
871
|
|
|
872 default:
|
|
|
873 copy_end = p;
|
|
|
874 looked = 0;
|
|
|
875 state = ssi_start_state;
|
|
|
876 break;
|
|
|
877 }
|
|
|
878
|
|
|
879 break;
|
|
|
880
|
|
|
881 case ssi_sharp_state:
|
|
|
882 switch (ch) {
|
|
|
883 case '#':
|
|
|
884 if (ctx->copy_start) {
|
|
|
885 ctx->saved = 0;
|
|
|
886 }
|
|
|
887 looked = 0;
|
|
|
888 state = ssi_precommand_state;
|
|
|
889 break;
|
|
|
890
|
|
|
891 case '<':
|
|
|
892 copy_end = p;
|
|
|
893 looked = 1;
|
|
|
894 state = ssi_tag_state;
|
|
|
895 break;
|
|
|
896
|
|
|
897 default:
|
|
|
898 copy_end = p;
|
|
|
899 looked = 0;
|
|
|
900 state = ssi_start_state;
|
|
|
901 break;
|
|
|
902 }
|
|
|
903
|
|
|
904 break;
|
|
|
905
|
|
|
906 case ssi_precommand_state:
|
|
|
907 switch (ch) {
|
|
|
908 case ' ':
|
|
|
909 case CR:
|
|
|
910 case LF:
|
|
|
911 case '\t':
|
|
|
912 break;
|
|
|
913
|
|
|
914 default:
|
|
|
915 ctx->command.len = 1;
|
|
|
916 ctx->command.data = ngx_palloc(r->pool,
|
|
158
|
917 NGX_HTTP_SSI_COMMAND_LEN);
|
|
46
|
918 if (ctx->command.data == NULL) {
|
|
|
919 return NGX_ERROR;
|
|
|
920 }
|
|
|
921
|
|
|
922 ctx->command.data[0] = ch;
|
|
158
|
923
|
|
146
|
924 ctx->key = 0;
|
|
|
925 ctx->key = ngx_hash(ctx->key, ch);
|
|
|
926
|
|
46
|
927 ctx->params.nelts = 0;
|
|
|
928 state = ssi_command_state;
|
|
|
929 break;
|
|
|
930 }
|
|
|
931
|
|
|
932 break;
|
|
|
933
|
|
|
934 case ssi_command_state:
|
|
|
935 switch (ch) {
|
|
|
936 case ' ':
|
|
|
937 case CR:
|
|
|
938 case LF:
|
|
|
939 case '\t':
|
|
|
940 state = ssi_preparam_state;
|
|
|
941 break;
|
|
|
942
|
|
|
943 case '-':
|
|
|
944 state = ssi_comment_end0_state;
|
|
|
945 break;
|
|
|
946
|
|
|
947 default:
|
|
|
948 if (ctx->command.len == NGX_HTTP_SSI_COMMAND_LEN) {
|
|
|
949 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
158
|
950 "the \"%V%c...\" SSI command is too long",
|
|
|
951 &ctx->command, ch);
|
|
46
|
952
|
|
|
953 state = ssi_error_state;
|
|
|
954 break;
|
|
|
955 }
|
|
158
|
956
|
|
|
957 ctx->command.data[ctx->command.len++] = ch;
|
|
|
958 ctx->key = ngx_hash(ctx->key, ch);
|
|
46
|
959 }
|
|
|
960
|
|
|
961 break;
|
|
|
962
|
|
|
963 case ssi_preparam_state:
|
|
|
964 switch (ch) {
|
|
|
965 case ' ':
|
|
|
966 case CR:
|
|
|
967 case LF:
|
|
|
968 case '\t':
|
|
|
969 break;
|
|
|
970
|
|
|
971 case '-':
|
|
|
972 state = ssi_comment_end0_state;
|
|
|
973 break;
|
|
|
974
|
|
|
975 default:
|
|
48
|
976 ctx->param = ngx_array_push(&ctx->params);
|
|
|
977 if (ctx->param == NULL) {
|
|
46
|
978 return NGX_ERROR;
|
|
|
979 }
|
|
|
980
|
|
|
981 ctx->param->key.len = 1;
|
|
|
982 ctx->param->key.data = ngx_palloc(r->pool,
|
|
158
|
983 NGX_HTTP_SSI_PARAM_LEN);
|
|
46
|
984 if (ctx->param->key.data == NULL) {
|
|
|
985 return NGX_ERROR;
|
|
|
986 }
|
|
|
987
|
|
|
988 ctx->param->key.data[0] = ch;
|
|
|
989
|
|
|
990 ctx->param->value.len = 0;
|
|
158
|
991
|
|
|
992 if (ctx->value_buf == NULL) {
|
|
|
993 ctx->param->value.data = ngx_palloc(r->pool,
|
|
|
994 ctx->value_len);
|
|
|
995 if (ctx->param->value.data == NULL) {
|
|
|
996 return NGX_ERROR;
|
|
|
997 }
|
|
|
998
|
|
|
999 } else {
|
|
|
1000 ctx->param->value.data = ctx->value_buf;
|
|
46
|
1001 }
|
|
|
1002
|
|
|
1003 state = ssi_param_state;
|
|
|
1004 break;
|
|
|
1005 }
|
|
|
1006
|
|
|
1007 break;
|
|
|
1008
|
|
|
1009 case ssi_param_state:
|
|
|
1010 switch (ch) {
|
|
|
1011 case ' ':
|
|
|
1012 case CR:
|
|
|
1013 case LF:
|
|
|
1014 case '\t':
|
|
|
1015 state = ssi_preequal_state;
|
|
|
1016 break;
|
|
|
1017
|
|
|
1018 case '=':
|
|
|
1019 state = ssi_prevalue_state;
|
|
|
1020 break;
|
|
|
1021
|
|
|
1022 case '-':
|
|
|
1023 state = ssi_error_end0_state;
|
|
|
1024
|
|
|
1025 ctx->param->key.data[ctx->param->key.len++] = ch;
|
|
|
1026 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1027 "invalid \"%V\" parameter in \"%V\" SSI command",
|
|
|
1028 &ctx->param->key, &ctx->command);
|
|
|
1029 break;
|
|
|
1030
|
|
|
1031 default:
|
|
|
1032 if (ctx->param->key.len == NGX_HTTP_SSI_PARAM_LEN) {
|
|
|
1033 state = ssi_error_state;
|
|
|
1034 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
158
|
1035 "too long \"%V%c...\" parameter in "
|
|
46
|
1036 "\"%V\" SSI command",
|
|
158
|
1037 &ctx->param->key, ch, &ctx->command);
|
|
46
|
1038 break;
|
|
|
1039 }
|
|
158
|
1040
|
|
|
1041 ctx->param->key.data[ctx->param->key.len++] = ch;
|
|
46
|
1042 }
|
|
|
1043
|
|
|
1044 break;
|
|
|
1045
|
|
|
1046 case ssi_preequal_state:
|
|
|
1047 switch (ch) {
|
|
|
1048 case ' ':
|
|
|
1049 case CR:
|
|
|
1050 case LF:
|
|
|
1051 case '\t':
|
|
|
1052 break;
|
|
|
1053
|
|
|
1054 case '=':
|
|
|
1055 state = ssi_prevalue_state;
|
|
|
1056 break;
|
|
|
1057
|
|
|
1058 default:
|
|
|
1059 if (ch == '-') {
|
|
|
1060 state = ssi_error_end0_state;
|
|
|
1061 } else {
|
|
|
1062 state = ssi_error_state;
|
|
|
1063 }
|
|
|
1064
|
|
|
1065 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1066 "unexpected \"%c\" symbol after \"%V\" "
|
|
|
1067 "parameter in \"%V\" SSI command",
|
|
|
1068 ch, &ctx->param->key, &ctx->command);
|
|
|
1069 break;
|
|
|
1070 }
|
|
|
1071
|
|
|
1072 break;
|
|
|
1073
|
|
|
1074 case ssi_prevalue_state:
|
|
|
1075 switch (ch) {
|
|
|
1076 case ' ':
|
|
|
1077 case CR:
|
|
|
1078 case LF:
|
|
|
1079 case '\t':
|
|
|
1080 break;
|
|
|
1081
|
|
|
1082 case '"':
|
|
|
1083 state = ssi_double_quoted_value_state;
|
|
|
1084 break;
|
|
|
1085
|
|
|
1086 case '\'':
|
|
|
1087 state = ssi_quoted_value_state;
|
|
|
1088 break;
|
|
|
1089
|
|
|
1090 default:
|
|
|
1091 if (ch == '-') {
|
|
|
1092 state = ssi_error_end0_state;
|
|
|
1093 } else {
|
|
|
1094 state = ssi_error_state;
|
|
|
1095 }
|
|
|
1096
|
|
|
1097 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1098 "unexpected \"%c\" symbol before value of "
|
|
|
1099 "\"%V\" parameter in \"%V\" SSI command",
|
|
|
1100 ch, &ctx->param->key, &ctx->command);
|
|
|
1101 break;
|
|
|
1102 }
|
|
|
1103
|
|
|
1104 break;
|
|
|
1105
|
|
|
1106 case ssi_double_quoted_value_state:
|
|
|
1107 switch (ch) {
|
|
108
|
1108 case '"':
|
|
|
1109 state = ssi_postparam_state;
|
|
|
1110 break;
|
|
|
1111
|
|
46
|
1112 case '\\':
|
|
|
1113 ctx->saved_state = ssi_double_quoted_value_state;
|
|
|
1114 state = ssi_quoted_symbol_state;
|
|
108
|
1115
|
|
|
1116 /* fall through */
|
|
46
|
1117
|
|
|
1118 default:
|
|
|
1119 if (ctx->param->value.len == ctx->value_len) {
|
|
|
1120 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
158
|
1121 "too long \"%V%c...\" value of \"%V\" "
|
|
|
1122 "parameter in \"%V\" SSI command",
|
|
|
1123 &ctx->param->value, ch, &ctx->param->key,
|
|
46
|
1124 &ctx->command);
|
|
|
1125 state = ssi_error_state;
|
|
|
1126 break;
|
|
|
1127 }
|
|
158
|
1128
|
|
|
1129 ctx->param->value.data[ctx->param->value.len++] = ch;
|
|
46
|
1130 }
|
|
|
1131
|
|
|
1132 break;
|
|
|
1133
|
|
|
1134 case ssi_quoted_value_state:
|
|
|
1135 switch (ch) {
|
|
108
|
1136 case '\'':
|
|
|
1137 state = ssi_postparam_state;
|
|
|
1138 break;
|
|
|
1139
|
|
46
|
1140 case '\\':
|
|
|
1141 ctx->saved_state = ssi_quoted_value_state;
|
|
|
1142 state = ssi_quoted_symbol_state;
|
|
108
|
1143
|
|
|
1144 /* fall through */
|
|
46
|
1145
|
|
|
1146 default:
|
|
|
1147 if (ctx->param->value.len == ctx->value_len) {
|
|
|
1148 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
158
|
1149 "too long \"%V%c...\" value of \"%V\" "
|
|
|
1150 "parameter in \"%V\" SSI command",
|
|
|
1151 &ctx->param->value, ch, &ctx->param->key,
|
|
46
|
1152 &ctx->command);
|
|
|
1153 state = ssi_error_state;
|
|
|
1154 break;
|
|
|
1155 }
|
|
158
|
1156
|
|
|
1157 ctx->param->value.data[ctx->param->value.len++] = ch;
|
|
46
|
1158 }
|
|
|
1159
|
|
|
1160 break;
|
|
|
1161
|
|
|
1162 case ssi_quoted_symbol_state:
|
|
108
|
1163 state = ctx->saved_state;
|
|
|
1164
|
|
|
1165 if (ch == '\\') {
|
|
|
1166 break;
|
|
|
1167 }
|
|
|
1168
|
|
|
1169 if (ch == '"' && state == ssi_double_quoted_value_state) {
|
|
122
|
1170 ctx->param->value.data[ctx->param->value.len - 1] = ch;
|
|
108
|
1171 break;
|
|
|
1172 }
|
|
|
1173
|
|
|
1174 if (ch == '\'' && state == ssi_quoted_value_state) {
|
|
122
|
1175 ctx->param->value.data[ctx->param->value.len - 1] = ch;
|
|
108
|
1176 break;
|
|
|
1177 }
|
|
|
1178
|
|
158
|
1179 if (ctx->param->value.len == ctx->value_len) {
|
|
|
1180 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1181 "too long \"%V%c...\" value of \"%V\" "
|
|
|
1182 "parameter in \"%V\" SSI command",
|
|
|
1183 &ctx->param->value, ch, &ctx->param->key,
|
|
|
1184 &ctx->command);
|
|
|
1185 state = ssi_error_state;
|
|
|
1186 break;
|
|
|
1187 }
|
|
|
1188
|
|
46
|
1189 ctx->param->value.data[ctx->param->value.len++] = ch;
|
|
|
1190
|
|
|
1191 break;
|
|
|
1192
|
|
|
1193 case ssi_postparam_state:
|
|
158
|
1194
|
|
|
1195 if (ctx->param->value.len < ctx->value_len / 2) {
|
|
|
1196 value = ngx_palloc(r->pool, ctx->param->value.len);
|
|
|
1197 if (value == NULL) {
|
|
|
1198 return NGX_ERROR;
|
|
|
1199 }
|
|
|
1200
|
|
|
1201 ngx_memcpy(value, ctx->param->value.data,
|
|
|
1202 ctx->param->value.len);
|
|
|
1203
|
|
|
1204 ctx->value_buf = ctx->param->value.data;
|
|
|
1205 ctx->param->value.data = value;
|
|
|
1206
|
|
|
1207 } else {
|
|
|
1208 ctx->value_buf = NULL;
|
|
|
1209 }
|
|
|
1210
|
|
46
|
1211 switch (ch) {
|
|
|
1212 case ' ':
|
|
|
1213 case CR:
|
|
|
1214 case LF:
|
|
|
1215 case '\t':
|
|
|
1216 state = ssi_preparam_state;
|
|
|
1217 break;
|
|
|
1218
|
|
|
1219 case '-':
|
|
|
1220 state = ssi_comment_end0_state;
|
|
|
1221 break;
|
|
|
1222
|
|
|
1223 default:
|
|
|
1224 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1225 "unexpected \"%c\" symbol after \"%V\" value "
|
|
|
1226 "of \"%V\" parameter in \"%V\" SSI command",
|
|
|
1227 ch, &ctx->param->value, &ctx->param->key,
|
|
|
1228 &ctx->command);
|
|
|
1229 state = ssi_error_state;
|
|
|
1230 break;
|
|
|
1231 }
|
|
|
1232
|
|
|
1233 break;
|
|
|
1234
|
|
|
1235 case ssi_comment_end0_state:
|
|
|
1236 switch (ch) {
|
|
|
1237 case '-':
|
|
|
1238 state = ssi_comment_end1_state;
|
|
|
1239 break;
|
|
|
1240
|
|
|
1241 default:
|
|
|
1242 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1243 "unexpected \"%c\" symbol in \"%V\" SSI command",
|
|
|
1244 ch, &ctx->command);
|
|
|
1245 state = ssi_error_state;
|
|
|
1246 break;
|
|
|
1247 }
|
|
|
1248
|
|
|
1249 break;
|
|
|
1250
|
|
|
1251 case ssi_comment_end1_state:
|
|
|
1252 switch (ch) {
|
|
|
1253 case '>':
|
|
|
1254 ctx->state = ssi_start_state;
|
|
|
1255 ctx->pos = p + 1;
|
|
|
1256 ctx->looked = looked;
|
|
|
1257 ctx->copy_end = copy_end;
|
|
|
1258
|
|
|
1259 if (ctx->copy_start == NULL && copy_end) {
|
|
|
1260 ctx->copy_start = ctx->buf->pos;
|
|
|
1261 }
|
|
|
1262
|
|
|
1263 return NGX_OK;
|
|
|
1264
|
|
|
1265 default:
|
|
|
1266 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1267 "unexpected \"%c\" symbol in \"%V\" SSI command",
|
|
|
1268 ch, &ctx->command);
|
|
|
1269 state = ssi_error_state;
|
|
|
1270 break;
|
|
|
1271 }
|
|
|
1272
|
|
|
1273 break;
|
|
|
1274
|
|
|
1275 case ssi_error_state:
|
|
|
1276 switch (ch) {
|
|
|
1277 case '-':
|
|
|
1278 state = ssi_error_end0_state;
|
|
|
1279 break;
|
|
|
1280
|
|
|
1281 default:
|
|
|
1282 break;
|
|
|
1283 }
|
|
|
1284
|
|
|
1285 break;
|
|
|
1286
|
|
|
1287 case ssi_error_end0_state:
|
|
|
1288 switch (ch) {
|
|
|
1289 case '-':
|
|
|
1290 state = ssi_error_end1_state;
|
|
|
1291 break;
|
|
|
1292
|
|
|
1293 default:
|
|
|
1294 state = ssi_error_state;
|
|
|
1295 break;
|
|
|
1296 }
|
|
|
1297
|
|
|
1298 break;
|
|
|
1299
|
|
|
1300 case ssi_error_end1_state:
|
|
|
1301 switch (ch) {
|
|
|
1302 case '>':
|
|
|
1303 ctx->state = ssi_start_state;
|
|
|
1304 ctx->pos = p + 1;
|
|
|
1305 ctx->looked = looked;
|
|
|
1306 ctx->copy_end = copy_end;
|
|
|
1307
|
|
|
1308 if (ctx->copy_start == NULL && copy_end) {
|
|
|
1309 ctx->copy_start = ctx->buf->pos;
|
|
|
1310 }
|
|
|
1311
|
|
|
1312 return NGX_HTTP_SSI_ERROR;
|
|
|
1313
|
|
|
1314 default:
|
|
|
1315 state = ssi_error_state;
|
|
|
1316 break;
|
|
|
1317 }
|
|
|
1318
|
|
|
1319 break;
|
|
|
1320 }
|
|
|
1321 }
|
|
|
1322
|
|
|
1323 ctx->state = state;
|
|
|
1324 ctx->pos = p;
|
|
|
1325 ctx->looked = looked;
|
|
|
1326
|
|
|
1327 ctx->copy_end = (state == ssi_start_state) ? p : copy_end;
|
|
|
1328
|
|
|
1329 if (ctx->copy_start == NULL && ctx->copy_end) {
|
|
|
1330 ctx->copy_start = ctx->buf->pos;
|
|
|
1331 }
|
|
|
1332
|
|
|
1333 return NGX_AGAIN;
|
|
|
1334 }
|
|
|
1335
|
|
|
1336
|
|
102
|
1337 static ngx_str_t *
|
|
|
1338 ngx_http_ssi_get_variable(ngx_http_request_t *r, ngx_str_t *name)
|
|
|
1339 {
|
|
|
1340 ngx_uint_t i;
|
|
|
1341 ngx_http_ssi_var_t *var;
|
|
|
1342 ngx_http_ssi_ctx_t *ctx;
|
|
|
1343
|
|
|
1344 ctx = ngx_http_get_module_ctx(r->main, ngx_http_ssi_filter_module);
|
|
|
1345
|
|
|
1346 var = ctx->variables.elts;
|
|
|
1347 for (i = 0; i < ctx->variables.nelts; i++) {
|
|
|
1348 if (name->len != var[i].name.len) {
|
|
|
1349 continue;
|
|
|
1350 }
|
|
|
1351
|
|
|
1352 if (ngx_strncasecmp(name->data, var[i].name.data, name->len) == 0) {
|
|
|
1353 return &var[i].value;
|
|
|
1354 }
|
|
|
1355 }
|
|
|
1356
|
|
|
1357 return NULL;
|
|
|
1358 }
|
|
|
1359
|
|
|
1360
|
|
|
1361 static ngx_int_t
|
|
|
1362 ngx_http_ssi_evaluate_string(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
|
|
|
1363 ngx_str_t *text, ngx_uint_t flags)
|
|
|
1364 {
|
|
122
|
1365 u_char ch, *p, **value, *data, *part_data;
|
|
|
1366 size_t *size, len, prefix, part_len;
|
|
|
1367 ngx_str_t var, *val;
|
|
102
|
1368 ngx_uint_t i, j, n, bracket;
|
|
|
1369 ngx_array_t lengths, values;
|
|
|
1370 ngx_http_variable_value_t *vv;
|
|
|
1371
|
|
|
1372 n = ngx_http_script_variables_count(text);
|
|
|
1373
|
|
|
1374 if (n == 0) {
|
|
|
1375
|
|
|
1376 if (!(flags & NGX_HTTP_SSI_ADD_PREFIX)) {
|
|
|
1377 return NGX_OK;
|
|
|
1378 }
|
|
|
1379
|
|
|
1380 if (text->data[0] != '/') {
|
|
|
1381 for (prefix = r->uri.len; prefix; prefix--) {
|
|
|
1382 if (r->uri.data[prefix - 1] == '/') {
|
|
|
1383 break;
|
|
|
1384 }
|
|
|
1385 }
|
|
|
1386
|
|
|
1387 if (prefix) {
|
|
|
1388 len = prefix + text->len;
|
|
|
1389
|
|
|
1390 data = ngx_palloc(r->pool, len);
|
|
|
1391 if (data == NULL) {
|
|
|
1392 return NGX_ERROR;
|
|
|
1393 }
|
|
|
1394
|
|
122
|
1395 p = ngx_copy(data, r->uri.data, prefix);
|
|
102
|
1396 ngx_memcpy(p, text->data, text->len);
|
|
|
1397
|
|
|
1398 text->len = len;
|
|
|
1399 text->data = data;
|
|
|
1400 }
|
|
|
1401 }
|
|
|
1402
|
|
|
1403 return NGX_OK;
|
|
|
1404 }
|
|
|
1405
|
|
|
1406 if (ngx_array_init(&lengths, r->pool, 8, sizeof(size_t *)) != NGX_OK) {
|
|
|
1407 return NGX_ERROR;
|
|
|
1408 }
|
|
|
1409
|
|
|
1410 if (ngx_array_init(&values, r->pool, 8, sizeof(u_char *)) != NGX_OK) {
|
|
|
1411 return NGX_ERROR;
|
|
|
1412 }
|
|
|
1413
|
|
|
1414 len = 0;
|
|
|
1415 i = 0;
|
|
|
1416
|
|
|
1417 while (i < text->len) {
|
|
|
1418
|
|
|
1419 if (text->data[i] == '$') {
|
|
|
1420
|
|
|
1421 var.len = 0;
|
|
|
1422
|
|
|
1423 if (++i == text->len) {
|
|
|
1424 goto invalid_variable;
|
|
|
1425 }
|
|
|
1426
|
|
|
1427 if (text->data[i] == '{') {
|
|
|
1428 bracket = 1;
|
|
|
1429
|
|
|
1430 if (++i == text->len) {
|
|
|
1431 goto invalid_variable;
|
|
|
1432 }
|
|
|
1433
|
|
|
1434 var.data = &text->data[i];
|
|
|
1435
|
|
|
1436 } else {
|
|
|
1437 bracket = 0;
|
|
|
1438 var.data = &text->data[i];
|
|
|
1439 }
|
|
|
1440
|
|
|
1441 for ( /* void */ ; i < text->len; i++, var.len++) {
|
|
|
1442 ch = text->data[i];
|
|
|
1443
|
|
|
1444 if (ch == '}' && bracket) {
|
|
|
1445 i++;
|
|
|
1446 bracket = 0;
|
|
|
1447 break;
|
|
|
1448 }
|
|
|
1449
|
|
|
1450 if ((ch >= 'A' && ch <= 'Z')
|
|
|
1451 || (ch >= 'a' && ch <= 'z')
|
|
|
1452 || (ch >= '0' && ch <= '9')
|
|
|
1453 || ch == '_')
|
|
|
1454 {
|
|
|
1455 continue;
|
|
|
1456 }
|
|
|
1457
|
|
|
1458 break;
|
|
|
1459 }
|
|
|
1460
|
|
|
1461 if (bracket) {
|
|
|
1462 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1463 "the closing bracket in \"%V\" "
|
|
|
1464 "variable is missing", &var);
|
|
|
1465 return NGX_ERROR;
|
|
|
1466 }
|
|
|
1467
|
|
126
|
1468 if (var.len == 0) {
|
|
102
|
1469 goto invalid_variable;
|
|
|
1470 }
|
|
|
1471
|
|
|
1472 for (j = 0; j < var.len; j++) {
|
|
|
1473 var.data[j] = ngx_tolower(var.data[j]);
|
|
|
1474 }
|
|
|
1475
|
|
|
1476 val = ngx_http_ssi_get_variable(r, &var);
|
|
|
1477
|
|
|
1478 if (val == NULL) {
|
|
|
1479 vv = ngx_http_get_variable(r, &var);
|
|
|
1480
|
|
|
1481 if (vv == NULL) {
|
|
|
1482 return NGX_ERROR;
|
|
|
1483 }
|
|
|
1484
|
|
122
|
1485 if (vv->not_found) {
|
|
102
|
1486 continue;
|
|
|
1487 }
|
|
|
1488
|
|
122
|
1489 part_data = vv->data;
|
|
|
1490 part_len = vv->len;
|
|
102
|
1491
|
|
|
1492 } else {
|
|
122
|
1493 part_data = val->data;
|
|
|
1494 part_len = val->len;
|
|
102
|
1495 }
|
|
|
1496
|
|
|
1497 } else {
|
|
122
|
1498 part_data = &text->data[i];
|
|
|
1499
|
|
|
1500 for (p = part_data; i < text->len; i++) {
|
|
108
|
1501 ch = text->data[i];
|
|
|
1502
|
|
|
1503 if (ch == '$') {
|
|
|
1504 if (text->data[i - 1] != '\\') {
|
|
|
1505 break;
|
|
|
1506 }
|
|
|
1507
|
|
|
1508 *(p - 1) = ch;
|
|
|
1509
|
|
|
1510 continue;
|
|
|
1511 }
|
|
|
1512
|
|
|
1513 *p++ = ch;
|
|
102
|
1514 }
|
|
108
|
1515
|
|
122
|
1516 part_len = p - part_data;
|
|
102
|
1517 }
|
|
|
1518
|
|
122
|
1519 len += part_len;
|
|
102
|
1520
|
|
|
1521 size = ngx_array_push(&lengths);
|
|
|
1522 if (size == NULL) {
|
|
|
1523 return NGX_ERROR;
|
|
|
1524 }
|
|
|
1525
|
|
122
|
1526 *size = part_len;
|
|
102
|
1527
|
|
|
1528 value = ngx_array_push(&values);
|
|
|
1529 if (value == NULL) {
|
|
|
1530 return NGX_ERROR;
|
|
|
1531 }
|
|
|
1532
|
|
122
|
1533 *value = part_data;
|
|
102
|
1534 }
|
|
|
1535
|
|
|
1536 prefix = 0;
|
|
|
1537
|
|
|
1538 size = lengths.elts;
|
|
|
1539 value = values.elts;
|
|
|
1540
|
|
|
1541 if (flags & NGX_HTTP_SSI_ADD_PREFIX) {
|
|
|
1542 for (i = 0; i < values.nelts; i++) {
|
|
|
1543 if (size[i] != 0) {
|
|
|
1544 if (*value[i] != '/') {
|
|
|
1545 for (prefix = r->uri.len; prefix; prefix--) {
|
|
|
1546 if (r->uri.data[prefix - 1] == '/') {
|
|
|
1547 len += prefix;
|
|
|
1548 break;
|
|
|
1549 }
|
|
|
1550 }
|
|
|
1551 }
|
|
|
1552
|
|
|
1553 break;
|
|
|
1554 }
|
|
|
1555 }
|
|
|
1556 }
|
|
|
1557
|
|
|
1558 p = ngx_palloc(r->pool, len);
|
|
|
1559 if (p == NULL) {
|
|
|
1560 return NGX_ERROR;
|
|
|
1561 }
|
|
|
1562
|
|
|
1563 text->len = len;
|
|
|
1564 text->data = p;
|
|
|
1565
|
|
122
|
1566 p = ngx_copy(p, r->uri.data, prefix);
|
|
102
|
1567
|
|
|
1568 for (i = 0; i < values.nelts; i++) {
|
|
122
|
1569 p = ngx_copy(p, value[i], size[i]);
|
|
102
|
1570 }
|
|
|
1571
|
|
|
1572 return NGX_OK;
|
|
|
1573
|
|
|
1574 invalid_variable:
|
|
|
1575
|
|
|
1576 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1577 "invalid variable name in \"%V\"", text);
|
|
|
1578
|
|
|
1579 return NGX_ERROR;
|
|
|
1580 }
|
|
|
1581
|
|
|
1582
|
|
|
1583 static ngx_int_t
|
|
|
1584 ngx_http_ssi_include(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
|
|
|
1585 ngx_str_t **params)
|
|
|
1586 {
|
|
|
1587 ngx_str_t *uri, *file, args;
|
|
122
|
1588 ngx_uint_t flags;
|
|
102
|
1589
|
|
|
1590 uri = params[NGX_HTTP_SSI_INCLUDE_VIRTUAL];
|
|
|
1591 file = params[NGX_HTTP_SSI_INCLUDE_FILE];
|
|
|
1592
|
|
|
1593 if (uri && file) {
|
|
|
1594 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1595 "inlcusion may be either virtual=\"%V\" or file=\"%V\"",
|
|
|
1596 uri, file);
|
|
|
1597 return NGX_HTTP_SSI_ERROR;
|
|
|
1598 }
|
|
|
1599
|
|
|
1600 if (uri == NULL && file == NULL) {
|
|
|
1601 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1602 "no parameter in \"include\" SSI command");
|
|
|
1603 return NGX_HTTP_SSI_ERROR;
|
|
|
1604 }
|
|
|
1605
|
|
|
1606 if (uri == NULL) {
|
|
|
1607 uri = file;
|
|
|
1608 }
|
|
|
1609
|
|
|
1610 if (ngx_http_ssi_evaluate_string(r, ctx, uri, NGX_HTTP_SSI_ADD_PREFIX)
|
|
|
1611 != NGX_OK)
|
|
|
1612 {
|
|
|
1613 return NGX_HTTP_SSI_ERROR;
|
|
|
1614 }
|
|
|
1615
|
|
|
1616 args.len = 0;
|
|
|
1617 args.data = NULL;
|
|
122
|
1618 flags = 0;
|
|
|
1619
|
|
|
1620 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1621 "ssi include: \"%V\"", uri);
|
|
|
1622
|
|
|
1623 if (ngx_http_parse_unsafe_uri(r, uri, &args, &flags) != NGX_OK) {
|
|
|
1624 return NGX_HTTP_SSI_ERROR;
|
|
102
|
1625 }
|
|
|
1626
|
|
122
|
1627 if (ngx_http_subrequest(r, uri, &args, flags) != NGX_OK) {
|
|
102
|
1628 return NGX_HTTP_SSI_ERROR;
|
|
|
1629 }
|
|
|
1630
|
|
|
1631 return NGX_OK;
|
|
|
1632 }
|
|
|
1633
|
|
|
1634
|
|
46
|
1635 static ngx_int_t
|
|
|
1636 ngx_http_ssi_echo(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
|
|
|
1637 ngx_str_t **params)
|
|
|
1638 {
|
|
50
|
1639 ngx_uint_t i;
|
|
48
|
1640 ngx_buf_t *b;
|
|
122
|
1641 ngx_str_t *var, *value, text;
|
|
48
|
1642 ngx_chain_t *cl;
|
|
50
|
1643 ngx_http_variable_value_t *vv;
|
|
46
|
1644
|
|
|
1645 var = params[NGX_HTTP_SSI_ECHO_VAR];
|
|
|
1646
|
|
102
|
1647 value = ngx_http_ssi_get_variable(r, var);
|
|
|
1648
|
|
|
1649 if (value == NULL) {
|
|
|
1650 for (i = 0; i < var->len; i++) {
|
|
|
1651 var->data[i] = ngx_tolower(var->data[i]);
|
|
|
1652 }
|
|
|
1653
|
|
|
1654 vv = ngx_http_get_variable(r, var);
|
|
|
1655
|
|
|
1656 if (vv == NULL) {
|
|
|
1657 return NGX_HTTP_SSI_ERROR;
|
|
|
1658 }
|
|
|
1659
|
|
122
|
1660 if (!vv->not_found) {
|
|
|
1661 text.data = vv->data;
|
|
|
1662 text.len = vv->len;
|
|
|
1663 value = &text;
|
|
102
|
1664 }
|
|
50
|
1665 }
|
|
46
|
1666
|
|
102
|
1667 if (value == NULL) {
|
|
48
|
1668 value = params[NGX_HTTP_SSI_ECHO_DEFAULT];
|
|
|
1669
|
|
|
1670 if (value == NULL) {
|
|
|
1671 value = &ngx_http_ssi_none;
|
|
|
1672
|
|
|
1673 } else if (value->len == 0) {
|
|
|
1674 return NGX_OK;
|
|
|
1675 }
|
|
|
1676
|
|
|
1677 } else {
|
|
|
1678 if (value->len == 0) {
|
|
|
1679 return NGX_OK;
|
|
|
1680 }
|
|
|
1681 }
|
|
|
1682
|
|
|
1683 b = ngx_calloc_buf(r->pool);
|
|
|
1684 if (b == NULL) {
|
|
|
1685 return NGX_HTTP_SSI_ERROR;
|
|
|
1686 }
|
|
|
1687
|
|
|
1688 cl = ngx_alloc_chain_link(r->pool);
|
|
|
1689 if (cl == NULL) {
|
|
46
|
1690 return NGX_HTTP_SSI_ERROR;
|
|
|
1691 }
|
|
|
1692
|
|
|
1693 b->memory = 1;
|
|
|
1694 b->pos = value->data;
|
|
|
1695 b->last = value->data + value->len;
|
|
|
1696
|
|
|
1697 cl->buf = b;
|
|
|
1698 cl->next = NULL;
|
|
|
1699 *ctx->last_out = cl;
|
|
|
1700 ctx->last_out = &cl->next;
|
|
|
1701
|
|
|
1702 return NGX_OK;
|
|
|
1703 }
|
|
|
1704
|
|
|
1705
|
|
58
|
1706 static ngx_int_t
|
|
|
1707 ngx_http_ssi_config(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
|
|
|
1708 ngx_str_t **params)
|
|
|
1709 {
|
|
|
1710 ngx_str_t *value;
|
|
|
1711
|
|
|
1712 value = params[NGX_HTTP_SSI_CONFIG_TIMEFMT];
|
|
|
1713
|
|
|
1714 if (value) {
|
|
138
|
1715 ctx->timefmt.len = value->len;
|
|
|
1716 ctx->timefmt.data = ngx_palloc(r->pool, value->len + 1);
|
|
|
1717 if (ctx->timefmt.data == NULL) {
|
|
|
1718 return NGX_HTTP_SSI_ERROR;
|
|
|
1719 }
|
|
|
1720
|
|
|
1721 ngx_cpystrn(ctx->timefmt.data, value->data, value->len + 1);
|
|
58
|
1722 }
|
|
|
1723
|
|
96
|
1724 value = params[NGX_HTTP_SSI_CONFIG_ERRMSG];
|
|
|
1725
|
|
|
1726 if (value) {
|
|
|
1727 ctx->errmsg = *value;
|
|
|
1728 }
|
|
|
1729
|
|
58
|
1730 return NGX_OK;
|
|
|
1731 }
|
|
|
1732
|
|
|
1733
|
|
|
1734 static ngx_int_t
|
|
102
|
1735 ngx_http_ssi_set(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
|
|
58
|
1736 ngx_str_t **params)
|
|
|
1737 {
|
|
102
|
1738 ngx_str_t *name, *value, *vv;
|
|
|
1739 ngx_http_ssi_var_t *var;
|
|
|
1740 ngx_http_ssi_ctx_t *mctx;
|
|
|
1741
|
|
|
1742 mctx = ngx_http_get_module_ctx(r->main, ngx_http_ssi_filter_module);
|
|
|
1743
|
|
|
1744 if (mctx->variables.elts == NULL) {
|
|
|
1745 if (ngx_array_init(&mctx->variables, r->pool, 4,
|
|
|
1746 sizeof(ngx_http_ssi_var_t)) != NGX_OK)
|
|
|
1747 {
|
|
58
|
1748 return NGX_HTTP_SSI_ERROR;
|
|
|
1749 }
|
|
|
1750 }
|
|
|
1751
|
|
102
|
1752 name = params[NGX_HTTP_SSI_SET_VAR];
|
|
|
1753 value = params[NGX_HTTP_SSI_SET_VALUE];
|
|
|
1754
|
|
|
1755 if (ngx_http_ssi_evaluate_string(r, ctx, value, 0) != NGX_OK) {
|
|
58
|
1756 return NGX_HTTP_SSI_ERROR;
|
|
|
1757 }
|
|
|
1758
|
|
102
|
1759 vv = ngx_http_ssi_get_variable(r, name);
|
|
|
1760
|
|
|
1761 if (vv) {
|
|
|
1762 *vv = *value;
|
|
|
1763 return NGX_OK;
|
|
|
1764 }
|
|
|
1765
|
|
|
1766 var = ngx_array_push(&mctx->variables);
|
|
|
1767 if (var == NULL) {
|
|
|
1768 return NGX_HTTP_SSI_ERROR;
|
|
|
1769 }
|
|
|
1770
|
|
|
1771 var->name = *name;
|
|
|
1772 var->value = *value;
|
|
|
1773
|
|
|
1774 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1775 "set: \"%V\"=\"%V\"", name, value);
|
|
|
1776
|
|
58
|
1777 return NGX_OK;
|
|
|
1778 }
|
|
|
1779
|
|
|
1780
|
|
|
1781 static ngx_int_t
|
|
|
1782 ngx_http_ssi_if(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
|
|
|
1783 ngx_str_t **params)
|
|
|
1784 {
|
|
102
|
1785 u_char *p, *last;
|
|
|
1786 ngx_str_t *expr, left, right;
|
|
|
1787 ngx_int_t rc;
|
|
|
1788 ngx_uint_t negative, noregex;
|
|
100
|
1789 #if (NGX_PCRE)
|
|
102
|
1790 ngx_str_t err;
|
|
|
1791 ngx_regex_t *regex;
|
|
|
1792 u_char errstr[NGX_MAX_CONF_ERRSTR];
|
|
100
|
1793 #endif
|
|
58
|
1794
|
|
|
1795 expr = params[NGX_HTTP_SSI_IF_EXPR];
|
|
|
1796
|
|
102
|
1797 left.data = expr->data;
|
|
100
|
1798 last = expr->data + expr->len;
|
|
|
1799
|
|
102
|
1800 for (p = left.data; p < last; p++) {
|
|
100
|
1801 if (*p >= 'A' && *p <= 'Z') {
|
|
|
1802 *p |= 0x20;
|
|
|
1803 continue;
|
|
|
1804 }
|
|
58
|
1805
|
|
102
|
1806 if ((*p >= 'a' && *p <= 'z')
|
|
|
1807 || (*p >= '0' && *p <= '9')
|
|
122
|
1808 || *p == '$' || *p == '{' || *p == '}' || *p == '_'
|
|
|
1809 || *p == '"' || *p == '\'')
|
|
102
|
1810 {
|
|
100
|
1811 continue;
|
|
|
1812 }
|
|
|
1813
|
|
|
1814 break;
|
|
|
1815 }
|
|
|
1816
|
|
102
|
1817 left.len = p - left.data;
|
|
100
|
1818
|
|
|
1819 while (p < last && *p == ' ') {
|
|
|
1820 p++;
|
|
58
|
1821 }
|
|
|
1822
|
|
102
|
1823 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1824 "left: \"%V\"", &left);
|
|
|
1825
|
|
|
1826 if (ngx_http_ssi_evaluate_string(r, ctx, &left, 0) != NGX_OK) {
|
|
58
|
1827 return NGX_HTTP_SSI_ERROR;
|
|
|
1828 }
|
|
|
1829
|
|
102
|
1830 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1831 "evaluted left: \"%V\"", &left);
|
|
|
1832
|
|
100
|
1833 if (p == last) {
|
|
102
|
1834 if (left.len) {
|
|
100
|
1835 ctx->output = 1;
|
|
|
1836
|
|
|
1837 } else {
|
|
|
1838 ctx->output = 0;
|
|
|
1839 }
|
|
|
1840
|
|
|
1841 return NGX_OK;
|
|
|
1842 }
|
|
|
1843
|
|
|
1844 if (p < last && *p == '=') {
|
|
|
1845 negative = 0;
|
|
|
1846 p++;
|
|
|
1847
|
|
|
1848 } else if (p + 1 < last && *p == '!' && *(p + 1) == '=') {
|
|
|
1849 negative = 1;
|
|
|
1850 p += 2;
|
|
|
1851
|
|
|
1852 } else {
|
|
|
1853 goto invalid_expression;
|
|
|
1854 }
|
|
|
1855
|
|
|
1856 while (p < last && *p == ' ') {
|
|
|
1857 p++;
|
|
|
1858 }
|
|
|
1859
|
|
|
1860 if (p < last && *p == '/') {
|
|
|
1861 if (*(last - 1) != '/') {
|
|
|
1862 goto invalid_expression;
|
|
|
1863 }
|
|
|
1864
|
|
|
1865 noregex = 0;
|
|
|
1866 last--;
|
|
|
1867 p++;
|
|
|
1868
|
|
|
1869 } else {
|
|
|
1870 noregex = 1;
|
|
|
1871 }
|
|
|
1872
|
|
|
1873 right.len = last - p;
|
|
|
1874 right.data = p;
|
|
|
1875
|
|
102
|
1876 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1877 "right: \"%V\"", &right);
|
|
|
1878
|
|
|
1879 if (ngx_http_ssi_evaluate_string(r, ctx, &right, 0) != NGX_OK) {
|
|
|
1880 return NGX_HTTP_SSI_ERROR;
|
|
100
|
1881 }
|
|
|
1882
|
|
102
|
1883 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1884 "evaluted right: \"%V\"", &right);
|
|
100
|
1885
|
|
|
1886 if (noregex) {
|
|
|
1887 if (left.len != right.len) {
|
|
|
1888 rc = -1;
|
|
|
1889
|
|
|
1890 } else {
|
|
|
1891 rc = ngx_strncmp(left.data, right.data, right.len);
|
|
|
1892 }
|
|
|
1893
|
|
|
1894 } else {
|
|
|
1895 #if (NGX_PCRE)
|
|
|
1896 err.len = NGX_MAX_CONF_ERRSTR;
|
|
|
1897 err.data = errstr;
|
|
|
1898
|
|
|
1899 right.data[right.len] = '\0';
|
|
|
1900
|
|
|
1901 regex = ngx_regex_compile(&right, 0, r->pool, &err);
|
|
|
1902
|
|
|
1903 if (regex == NULL) {
|
|
|
1904 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "%s", err.data);
|
|
|
1905 return NGX_HTTP_SSI_ERROR;
|
|
|
1906 }
|
|
|
1907
|
|
|
1908 rc = ngx_regex_exec(regex, &left, NULL, 0);
|
|
|
1909
|
|
|
1910 if (rc != NGX_REGEX_NO_MATCHED && rc < 0) {
|
|
|
1911 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
|
|
|
1912 ngx_regex_exec_n " failed: %d on \"%V\" using \"%V\"",
|
|
|
1913 rc, &left, &right);
|
|
|
1914 return NGX_HTTP_SSI_ERROR;
|
|
|
1915 }
|
|
|
1916 #else
|
|
|
1917 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
|
|
|
1918 "the using of the regex \"%V\" in SSI "
|
|
|
1919 "requires PCRE library", &right);
|
|
|
1920
|
|
|
1921 return NGX_HTTP_SSI_ERROR;
|
|
|
1922 #endif
|
|
|
1923 }
|
|
|
1924
|
|
|
1925 if ((rc == 0 && !negative) || (rc != 0 && negative)) {
|
|
58
|
1926 ctx->output = 1;
|
|
|
1927
|
|
|
1928 } else {
|
|
|
1929 ctx->output = 0;
|
|
|
1930 }
|
|
|
1931
|
|
|
1932 return NGX_OK;
|
|
100
|
1933
|
|
|
1934 invalid_expression:
|
|
|
1935
|
|
|
1936 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1937 "invalid expression in \"%V\"", expr);
|
|
|
1938
|
|
|
1939 return NGX_HTTP_SSI_ERROR;
|
|
58
|
1940 }
|
|
|
1941
|
|
|
1942
|
|
|
1943 static ngx_int_t
|
|
|
1944 ngx_http_ssi_else(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
|
|
|
1945 ngx_str_t **params)
|
|
|
1946 {
|
|
|
1947 ctx->output = !ctx->output;
|
|
|
1948
|
|
|
1949 return NGX_OK;
|
|
|
1950 }
|
|
|
1951
|
|
|
1952
|
|
|
1953 static ngx_int_t
|
|
|
1954 ngx_http_ssi_endif(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
|
|
|
1955 ngx_str_t **params)
|
|
|
1956 {
|
|
|
1957 ctx->output = 1;
|
|
|
1958
|
|
|
1959 return NGX_OK;
|
|
|
1960 }
|
|
|
1961
|
|
|
1962
|
|
122
|
1963 static ngx_int_t
|
|
|
1964 ngx_http_ssi_date_gmt_local_variable(ngx_http_request_t *r,
|
|
|
1965 ngx_http_variable_value_t *v, uintptr_t gmt)
|
|
58
|
1966 {
|
|
122
|
1967 ngx_http_ssi_ctx_t *ctx;
|
|
|
1968 ngx_time_t *tp;
|
|
|
1969 struct tm tm;
|
|
|
1970 char buf[NGX_HTTP_SSI_DATE_LEN];
|
|
|
1971
|
|
126
|
1972 v->valid = 1;
|
|
122
|
1973 v->no_cachable = 0;
|
|
|
1974 v->not_found = 0;
|
|
58
|
1975
|
|
112
|
1976 tp = ngx_timeofday();
|
|
|
1977
|
|
58
|
1978 ctx = ngx_http_get_module_ctx(r, ngx_http_ssi_filter_module);
|
|
|
1979
|
|
|
1980 if (ctx->timefmt.len == sizeof("%s") - 1
|
|
|
1981 && ctx->timefmt.data[0] == '%' && ctx->timefmt.data[1] == 's')
|
|
|
1982 {
|
|
122
|
1983 v->data = ngx_palloc(r->pool, NGX_TIME_T_LEN);
|
|
|
1984 if (v->data == NULL) {
|
|
|
1985 return NGX_ERROR;
|
|
58
|
1986 }
|
|
|
1987
|
|
122
|
1988 v->len = ngx_sprintf(v->data, "%T", tp->sec + (gmt ? 0 : tp->gmtoff))
|
|
|
1989 - v->data;
|
|
|
1990 return NGX_OK;
|
|
58
|
1991 }
|
|
|
1992
|
|
|
1993 if (gmt) {
|
|
112
|
1994 ngx_libc_gmtime(tp->sec, &tm);
|
|
58
|
1995 } else {
|
|
112
|
1996 ngx_libc_localtime(tp->sec, &tm);
|
|
58
|
1997 }
|
|
|
1998
|
|
122
|
1999 v->len = strftime(buf, NGX_HTTP_SSI_DATE_LEN,
|
|
|
2000 (char *) ctx->timefmt.data, &tm);
|
|
|
2001 if (v->len == 0) {
|
|
|
2002 return NGX_ERROR;
|
|
58
|
2003 }
|
|
|
2004
|
|
122
|
2005 v->data = ngx_palloc(r->pool, v->len);
|
|
|
2006 if (v->data == NULL) {
|
|
|
2007 return NGX_ERROR;
|
|
58
|
2008 }
|
|
|
2009
|
|
122
|
2010 ngx_memcpy(v->data, buf, v->len);
|
|
|
2011
|
|
|
2012 return NGX_OK;
|
|
58
|
2013 }
|
|
|
2014
|
|
|
2015
|
|
76
|
2016 static char *
|
|
|
2017 ngx_http_ssi_types(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
2018 {
|
|
146
|
2019 ngx_http_ssi_loc_conf_t *slcf = conf;
|
|
76
|
2020
|
|
|
2021 ngx_str_t *value, *type;
|
|
|
2022 ngx_uint_t i;
|
|
|
2023
|
|
146
|
2024 if (slcf->types == NULL) {
|
|
|
2025 slcf->types = ngx_array_create(cf->pool, 4, sizeof(ngx_str_t));
|
|
|
2026 if (slcf->types == NULL) {
|
|
76
|
2027 return NGX_CONF_ERROR;
|
|
|
2028 }
|
|
|
2029
|
|
146
|
2030 type = ngx_array_push(slcf->types);
|
|
76
|
2031 if (type == NULL) {
|
|
|
2032 return NGX_CONF_ERROR;
|
|
|
2033 }
|
|
|
2034
|
|
|
2035 type->len = sizeof("text/html") - 1;
|
|
|
2036 type->data = (u_char *) "text/html";
|
|
|
2037 }
|
|
|
2038
|
|
|
2039 value = cf->args->elts;
|
|
|
2040
|
|
|
2041 for (i = 1; i < cf->args->nelts; i++) {
|
|
|
2042
|
|
|
2043 if (ngx_strcmp(value[i].data, "text/html") == 0) {
|
|
|
2044 continue;
|
|
|
2045 }
|
|
|
2046
|
|
146
|
2047 type = ngx_array_push(slcf->types);
|
|
76
|
2048 if (type == NULL) {
|
|
|
2049 return NGX_CONF_ERROR;
|
|
|
2050 }
|
|
|
2051
|
|
|
2052 type->len = value[i].len;
|
|
|
2053
|
|
|
2054 type->data = ngx_palloc(cf->pool, type->len + 1);
|
|
|
2055 if (type->data == NULL) {
|
|
|
2056 return NGX_CONF_ERROR;
|
|
|
2057 }
|
|
|
2058
|
|
|
2059 ngx_cpystrn(type->data, value[i].data, type->len + 1);
|
|
|
2060 }
|
|
|
2061
|
|
|
2062 return NGX_CONF_OK;
|
|
|
2063 }
|
|
|
2064
|
|
|
2065
|
|
58
|
2066 static ngx_int_t
|
|
146
|
2067 ngx_http_ssi_preconfiguration(ngx_conf_t *cf)
|
|
58
|
2068 {
|
|
146
|
2069 ngx_int_t rc;
|
|
|
2070 ngx_http_variable_t *var, *v;
|
|
|
2071 ngx_http_ssi_command_t *cmd;
|
|
|
2072 ngx_http_ssi_main_conf_t *smcf;
|
|
58
|
2073
|
|
|
2074 for (v = ngx_http_ssi_vars; v->name.len; v++) {
|
|
|
2075 var = ngx_http_add_variable(cf, &v->name, v->flags);
|
|
|
2076 if (var == NULL) {
|
|
|
2077 return NGX_ERROR;
|
|
|
2078 }
|
|
|
2079
|
|
|
2080 var->handler = v->handler;
|
|
|
2081 var->data = v->data;
|
|
|
2082 }
|
|
|
2083
|
|
146
|
2084 smcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_ssi_filter_module);
|
|
|
2085
|
|
|
2086 for (cmd = ngx_http_ssi_commands; cmd->name.len; cmd++) {
|
|
|
2087 rc = ngx_hash_add_key(&smcf->commands, &cmd->name, cmd,
|
|
|
2088 NGX_HASH_READONLY_KEY);
|
|
|
2089
|
|
|
2090 if (rc == NGX_OK) {
|
|
|
2091 continue;
|
|
|
2092 }
|
|
|
2093
|
|
|
2094 if (rc == NGX_BUSY) {
|
|
|
2095 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
2096 "conflicting SSI command \"%V\"", &cmd->name);
|
|
|
2097 }
|
|
|
2098
|
|
|
2099 return NGX_ERROR;
|
|
|
2100 }
|
|
|
2101
|
|
126
|
2102 return NGX_OK;
|
|
58
|
2103 }
|
|
|
2104
|
|
|
2105
|
|
46
|
2106 static void *
|
|
146
|
2107 ngx_http_ssi_create_main_conf(ngx_conf_t *cf)
|
|
|
2108 {
|
|
|
2109 ngx_http_ssi_main_conf_t *smcf;
|
|
|
2110
|
|
|
2111 smcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_ssi_main_conf_t));
|
|
|
2112 if (smcf == NULL) {
|
|
|
2113 return NGX_CONF_ERROR;
|
|
|
2114 }
|
|
|
2115
|
|
|
2116 smcf->commands.pool = cf->pool;
|
|
|
2117 smcf->commands.temp_pool = cf->temp_pool;
|
|
|
2118
|
|
|
2119 if (ngx_hash_keys_array_init(&smcf->commands, NGX_HASH_SMALL) != NGX_OK) {
|
|
|
2120 return NGX_CONF_ERROR;
|
|
|
2121 }
|
|
|
2122
|
|
|
2123 return smcf;
|
|
|
2124 }
|
|
|
2125
|
|
|
2126
|
|
|
2127 static char *
|
|
|
2128 ngx_http_ssi_init_main_conf(ngx_conf_t *cf, void *conf)
|
|
|
2129 {
|
|
|
2130 ngx_http_ssi_main_conf_t *smcf = conf;
|
|
|
2131
|
|
|
2132 ngx_hash_init_t hash;
|
|
|
2133
|
|
|
2134 hash.hash = &smcf->hash;
|
|
|
2135 hash.key = ngx_hash_key;
|
|
|
2136 hash.max_size = 1024;
|
|
|
2137 hash.bucket_size = ngx_cacheline_size;
|
|
|
2138 hash.name = "ssi_command_hash";
|
|
|
2139 hash.pool = cf->pool;
|
|
|
2140 hash.temp_pool = NULL;
|
|
|
2141
|
|
|
2142 if (ngx_hash_init(&hash, smcf->commands.keys.elts,
|
|
|
2143 smcf->commands.keys.nelts)
|
|
|
2144 != NGX_OK)
|
|
|
2145 {
|
|
|
2146 return NGX_CONF_ERROR;
|
|
|
2147 }
|
|
|
2148
|
|
|
2149 return NGX_CONF_OK;
|
|
|
2150 }
|
|
|
2151
|
|
|
2152
|
|
|
2153 static void *
|
|
46
|
2154 ngx_http_ssi_create_conf(ngx_conf_t *cf)
|
|
|
2155 {
|
|
146
|
2156 ngx_http_ssi_loc_conf_t *slcf;
|
|
|
2157
|
|
|
2158 slcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_ssi_loc_conf_t));
|
|
|
2159 if (slcf == NULL) {
|
|
46
|
2160 return NGX_CONF_ERROR;
|
|
|
2161 }
|
|
|
2162
|
|
76
|
2163 /*
|
|
|
2164 * set by ngx_pcalloc():
|
|
|
2165 *
|
|
|
2166 * conf->types = NULL;
|
|
|
2167 */
|
|
|
2168
|
|
146
|
2169 slcf->enable = NGX_CONF_UNSET;
|
|
|
2170 slcf->silent_errors = NGX_CONF_UNSET;
|
|
|
2171 slcf->ignore_recycled_buffers = NGX_CONF_UNSET;
|
|
|
2172
|
|
|
2173 slcf->min_file_chunk = NGX_CONF_UNSET_SIZE;
|
|
|
2174 slcf->value_len = NGX_CONF_UNSET_SIZE;
|
|
|
2175
|
|
|
2176 return slcf;
|
|
46
|
2177 }
|
|
|
2178
|
|
|
2179
|
|
|
2180 static char *
|
|
|
2181 ngx_http_ssi_merge_conf(ngx_conf_t *cf, void *parent, void *child)
|
|
|
2182 {
|
|
146
|
2183 ngx_http_ssi_loc_conf_t *prev = parent;
|
|
|
2184 ngx_http_ssi_loc_conf_t *conf = child;
|
|
46
|
2185
|
|
76
|
2186 ngx_str_t *type;
|
|
|
2187
|
|
46
|
2188 ngx_conf_merge_value(conf->enable, prev->enable, 0);
|
|
|
2189 ngx_conf_merge_value(conf->silent_errors, prev->silent_errors, 0);
|
|
58
|
2190 ngx_conf_merge_value(conf->ignore_recycled_buffers,
|
|
|
2191 prev->ignore_recycled_buffers, 0);
|
|
46
|
2192
|
|
|
2193 ngx_conf_merge_size_value(conf->min_file_chunk, prev->min_file_chunk, 1024);
|
|
|
2194 ngx_conf_merge_size_value(conf->value_len, prev->value_len, 256);
|
|
|
2195
|
|
76
|
2196 if (conf->types == NULL) {
|
|
|
2197 if (prev->types == NULL) {
|
|
|
2198 conf->types = ngx_array_create(cf->pool, 1, sizeof(ngx_str_t));
|
|
|
2199 if (conf->types == NULL) {
|
|
|
2200 return NGX_CONF_ERROR;
|
|
|
2201 }
|
|
|
2202
|
|
|
2203 type = ngx_array_push(conf->types);
|
|
|
2204 if (type == NULL) {
|
|
|
2205 return NGX_CONF_ERROR;
|
|
|
2206 }
|
|
|
2207
|
|
|
2208 type->len = sizeof("text/html") - 1;
|
|
|
2209 type->data = (u_char *) "text/html";
|
|
|
2210
|
|
|
2211 } else {
|
|
|
2212 conf->types = prev->types;
|
|
|
2213 }
|
|
|
2214 }
|
|
|
2215
|
|
46
|
2216 return NGX_CONF_OK;
|
|
|
2217 }
|
|
|
2218
|
|
|
2219
|
|
|
2220 static ngx_int_t
|
|
|
2221 ngx_http_ssi_filter_init(ngx_cycle_t *cycle)
|
|
|
2222 {
|
|
|
2223 ngx_http_next_header_filter = ngx_http_top_header_filter;
|
|
|
2224 ngx_http_top_header_filter = ngx_http_ssi_header_filter;
|
|
|
2225
|
|
|
2226 ngx_http_next_body_filter = ngx_http_top_body_filter;
|
|
|
2227 ngx_http_top_body_filter = ngx_http_ssi_body_filter;
|
|
|
2228
|
|
|
2229 return NGX_OK;
|
|
|
2230 }
|
