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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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216
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39 typedef struct {
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40 ngx_str_t name;
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41 ngx_chain_t *bufs;
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42 ngx_uint_t count;
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43 } ngx_http_ssi_block_t;
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44
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45
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46
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46 typedef enum {
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47 ssi_start_state = 0,
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48 ssi_tag_state,
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49 ssi_comment0_state,
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50 ssi_comment1_state,
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51 ssi_sharp_state,
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52 ssi_precommand_state,
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53 ssi_command_state,
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54 ssi_preparam_state,
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55 ssi_param_state,
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56 ssi_preequal_state,
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57 ssi_prevalue_state,
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58 ssi_double_quoted_value_state,
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59 ssi_quoted_value_state,
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60 ssi_quoted_symbol_state,
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61 ssi_postparam_state,
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62 ssi_comment_end0_state,
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63 ssi_comment_end1_state,
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64 ssi_error_state,
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65 ssi_error_end0_state,
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66 ssi_error_end1_state
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67 } ngx_http_ssi_state_e;
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68
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69
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58
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70 static ngx_int_t ngx_http_ssi_output(ngx_http_request_t *r,
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71 ngx_http_ssi_ctx_t *ctx);
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46
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72 static ngx_int_t ngx_http_ssi_parse(ngx_http_request_t *r,
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73 ngx_http_ssi_ctx_t *ctx);
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102
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74 static ngx_str_t *ngx_http_ssi_get_variable(ngx_http_request_t *r,
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160
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75 ngx_str_t *name, ngx_uint_t key);
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102
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76 static ngx_int_t ngx_http_ssi_evaluate_string(ngx_http_request_t *r,
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77 ngx_http_ssi_ctx_t *ctx, ngx_str_t *text, ngx_uint_t flags);
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78
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79 static ngx_int_t ngx_http_ssi_include(ngx_http_request_t *r,
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80 ngx_http_ssi_ctx_t *ctx, ngx_str_t **params);
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46
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81 static ngx_int_t ngx_http_ssi_echo(ngx_http_request_t *r,
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82 ngx_http_ssi_ctx_t *ctx, ngx_str_t **params);
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58
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83 static ngx_int_t ngx_http_ssi_config(ngx_http_request_t *r,
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84 ngx_http_ssi_ctx_t *ctx, ngx_str_t **params);
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102
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85 static ngx_int_t ngx_http_ssi_set(ngx_http_request_t *r,
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58
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86 ngx_http_ssi_ctx_t *ctx, ngx_str_t **params);
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87 static ngx_int_t ngx_http_ssi_if(ngx_http_request_t *r,
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88 ngx_http_ssi_ctx_t *ctx, ngx_str_t **params);
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89 static ngx_int_t ngx_http_ssi_else(ngx_http_request_t *r,
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90 ngx_http_ssi_ctx_t *ctx, ngx_str_t **params);
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91 static ngx_int_t ngx_http_ssi_endif(ngx_http_request_t *r,
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92 ngx_http_ssi_ctx_t *ctx, ngx_str_t **params);
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216
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93 static ngx_int_t ngx_http_ssi_block(ngx_http_request_t *r,
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94 ngx_http_ssi_ctx_t *ctx, ngx_str_t **params);
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95 static ngx_int_t ngx_http_ssi_endblock(ngx_http_request_t *r,
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96 ngx_http_ssi_ctx_t *ctx, ngx_str_t **params);
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46
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97
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122
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98 static ngx_int_t ngx_http_ssi_date_gmt_local_variable(ngx_http_request_t *r,
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99 ngx_http_variable_value_t *v, uintptr_t gmt);
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58
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100
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76
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101 static char *ngx_http_ssi_types(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
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102
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146
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103 static ngx_int_t ngx_http_ssi_preconfiguration(ngx_conf_t *cf);
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104 static void *ngx_http_ssi_create_main_conf(ngx_conf_t *cf);
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105 static char *ngx_http_ssi_init_main_conf(ngx_conf_t *cf, void *conf);
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46
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106 static void *ngx_http_ssi_create_conf(ngx_conf_t *cf);
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107 static char *ngx_http_ssi_merge_conf(ngx_conf_t *cf,
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108 void *parent, void *child);
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230
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109 static ngx_int_t ngx_http_ssi_filter_init(ngx_conf_t *cf);
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46
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110
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111
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112 static ngx_command_t ngx_http_ssi_filter_commands[] = {
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113
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114 { ngx_string("ssi"),
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230
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115 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF
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116 |NGX_CONF_FLAG,
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117 ngx_conf_set_flag_slot,
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118 NGX_HTTP_LOC_CONF_OFFSET,
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146
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119 offsetof(ngx_http_ssi_loc_conf_t, enable),
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120 NULL },
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121
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122 { ngx_string("ssi_silent_errors"),
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123 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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124 ngx_conf_set_flag_slot,
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125 NGX_HTTP_LOC_CONF_OFFSET,
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146
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126 offsetof(ngx_http_ssi_loc_conf_t, silent_errors),
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127 NULL },
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128
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58
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129 { ngx_string("ssi_ignore_recycled_buffers"),
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130 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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131 ngx_conf_set_flag_slot,
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132 NGX_HTTP_LOC_CONF_OFFSET,
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146
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133 offsetof(ngx_http_ssi_loc_conf_t, ignore_recycled_buffers),
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134 NULL },
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135
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46
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136 { ngx_string("ssi_min_file_chunk"),
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137 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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138 ngx_conf_set_size_slot,
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139 NGX_HTTP_LOC_CONF_OFFSET,
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146
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140 offsetof(ngx_http_ssi_loc_conf_t, min_file_chunk),
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141 NULL },
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142
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138
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143 { ngx_string("ssi_value_length"),
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144 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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145 ngx_conf_set_size_slot,
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146 NGX_HTTP_LOC_CONF_OFFSET,
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146
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147 offsetof(ngx_http_ssi_loc_conf_t, value_len),
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138
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148 NULL },
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149
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76
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150 { ngx_string("ssi_types"),
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151 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
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152 ngx_http_ssi_types,
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153 NGX_HTTP_LOC_CONF_OFFSET,
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154 0,
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155 NULL },
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156
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46
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157 ngx_null_command
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158 };
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159
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160
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126
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161
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46
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162 static ngx_http_module_t ngx_http_ssi_filter_module_ctx = {
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146
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163 ngx_http_ssi_preconfiguration, /* preconfiguration */
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230
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164 ngx_http_ssi_filter_init, /* postconfiguration */
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46
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165
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146
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166 ngx_http_ssi_create_main_conf, /* create main configuration */
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167 ngx_http_ssi_init_main_conf, /* init main configuration */
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46
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168
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169 NULL, /* create server configuration */
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170 NULL, /* merge server configuration */
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171
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172 ngx_http_ssi_create_conf, /* create location configuration */
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173 ngx_http_ssi_merge_conf /* merge location configuration */
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126
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174 };
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46
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175
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176
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177 ngx_module_t ngx_http_ssi_filter_module = {
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58
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178 NGX_MODULE_V1,
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46
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179 &ngx_http_ssi_filter_module_ctx, /* module context */
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180 ngx_http_ssi_filter_commands, /* module directives */
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181 NGX_HTTP_MODULE, /* module type */
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90
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182 NULL, /* init master */
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230
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183 NULL, /* init module */
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90
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184 NULL, /* init process */
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185 NULL, /* init thread */
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186 NULL, /* exit thread */
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187 NULL, /* exit process */
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188 NULL, /* exit master */
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189 NGX_MODULE_V1_PADDING
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46
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190 };
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191
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192
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118
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193 static ngx_http_output_header_filter_pt ngx_http_next_header_filter;
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194 static ngx_http_output_body_filter_pt ngx_http_next_body_filter;
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46
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195
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196
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197 static u_char ngx_http_ssi_string[] = "<!--";
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198
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199 static ngx_str_t ngx_http_ssi_none = ngx_string("(none)");
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200
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102
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201 #define NGX_HTTP_SSI_INCLUDE_VIRTUAL 0
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202 #define NGX_HTTP_SSI_INCLUDE_FILE 1
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194
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203 #define NGX_HTTP_SSI_INCLUDE_WAIT 2
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216
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204 #define NGX_HTTP_SSI_INCLUDE_STUB 3
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46
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205
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58
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206 #define NGX_HTTP_SSI_ECHO_VAR 0
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207 #define NGX_HTTP_SSI_ECHO_DEFAULT 1
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208
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96
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209 #define NGX_HTTP_SSI_CONFIG_ERRMSG 0
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210 #define NGX_HTTP_SSI_CONFIG_TIMEFMT 1
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58
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211
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102
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212 #define NGX_HTTP_SSI_SET_VAR 0
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213 #define NGX_HTTP_SSI_SET_VALUE 1
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214
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215 #define NGX_HTTP_SSI_IF_EXPR 0
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216
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216
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217 #define NGX_HTTP_SSI_BLOCK_NAME 0
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218
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46
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219
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102
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220 static ngx_http_ssi_param_t ngx_http_ssi_include_params[] = {
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146
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221 { ngx_string("virtual"), NGX_HTTP_SSI_INCLUDE_VIRTUAL, 0, 0 },
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222 { ngx_string("file"), NGX_HTTP_SSI_INCLUDE_FILE, 0, 0 },
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194
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223 { ngx_string("wait"), NGX_HTTP_SSI_INCLUDE_WAIT, 0, 0 },
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216
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224 { ngx_string("stub"), NGX_HTTP_SSI_INCLUDE_STUB, 0, 0 },
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146
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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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46
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229 static ngx_http_ssi_param_t ngx_http_ssi_echo_params[] = {
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146
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230 { ngx_string("var"), NGX_HTTP_SSI_ECHO_VAR, 1, 0 },
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231 { ngx_string("default"), NGX_HTTP_SSI_ECHO_DEFAULT, 0, 0 },
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232 { ngx_null_string, 0, 0, 0 }
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46
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233 };
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234
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235
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236 static ngx_http_ssi_param_t ngx_http_ssi_config_params[] = {
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146
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237 { ngx_string("errmsg"), NGX_HTTP_SSI_CONFIG_ERRMSG, 0, 0 },
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238 { ngx_string("timefmt"), NGX_HTTP_SSI_CONFIG_TIMEFMT, 0, 0 },
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239 { ngx_null_string, 0, 0, 0 }
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58
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240 };
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241
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242
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102
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243 static ngx_http_ssi_param_t ngx_http_ssi_set_params[] = {
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146
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244 { ngx_string("var"), NGX_HTTP_SSI_SET_VAR, 1, 0 },
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245 { ngx_string("value"), NGX_HTTP_SSI_SET_VALUE, 1, 0 },
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246 { ngx_null_string, 0, 0, 0 }
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102
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247 };
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248
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249
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250 static ngx_http_ssi_param_t ngx_http_ssi_if_params[] = {
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146
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251 { ngx_string("expr"), NGX_HTTP_SSI_IF_EXPR, 1, 0 },
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252 { ngx_null_string, 0, 0, 0 }
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58
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253 };
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254
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255
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216
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256 static ngx_http_ssi_param_t ngx_http_ssi_block_params[] = {
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257 { ngx_string("name"), NGX_HTTP_SSI_BLOCK_NAME, 1, 0 },
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258 { ngx_null_string, 0, 0, 0 }
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259 };
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260
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261
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262 static ngx_http_ssi_param_t ngx_http_ssi_no_params[] = {
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146
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263 { ngx_null_string, 0, 0, 0 }
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264 };
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265
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266
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267 static ngx_http_ssi_command_t ngx_http_ssi_commands[] = {
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102
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268 { ngx_string("include"), ngx_http_ssi_include,
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216
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269 ngx_http_ssi_include_params, 0, 0, 1 },
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270 { ngx_string("echo"), ngx_http_ssi_echo,
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271 ngx_http_ssi_echo_params, 0, 0, 0 },
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58
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272 { ngx_string("config"), ngx_http_ssi_config,
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216
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273 ngx_http_ssi_config_params, 0, 0, 0 },
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274 { ngx_string("set"), ngx_http_ssi_set, ngx_http_ssi_set_params, 0, 0, 0 },
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275
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276 { ngx_string("if"), ngx_http_ssi_if, ngx_http_ssi_if_params, 0, 0, 0 },
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178
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277 { ngx_string("elif"), ngx_http_ssi_if, ngx_http_ssi_if_params,
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216
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278 NGX_HTTP_SSI_COND_IF, 0, 0 },
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178
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279 { ngx_string("else"), ngx_http_ssi_else, ngx_http_ssi_no_params,
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216
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280 NGX_HTTP_SSI_COND_IF, 0, 0 },
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178
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281 { ngx_string("endif"), ngx_http_ssi_endif, ngx_http_ssi_no_params,
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216
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282 NGX_HTTP_SSI_COND_ELSE, 0, 0 },
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283
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284 { ngx_string("block"), ngx_http_ssi_block,
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285 ngx_http_ssi_block_params, 0, 0, 0 },
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286 { ngx_string("endblock"), ngx_http_ssi_endblock,
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287 ngx_http_ssi_no_params, 0, 1, 0 },
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288
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289 { ngx_null_string, NULL, NULL, 0, 0, 0 }
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46
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290 };
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291
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292
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58
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293 static ngx_http_variable_t ngx_http_ssi_vars[] = {
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294
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186
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295 { ngx_string("date_local"), NULL, ngx_http_ssi_date_gmt_local_variable, 0,
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82
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296 NGX_HTTP_VAR_NOCACHABLE, 0 },
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58
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297
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186
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298 { ngx_string("date_gmt"), NULL, ngx_http_ssi_date_gmt_local_variable, 1,
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82
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299 NGX_HTTP_VAR_NOCACHABLE, 0 },
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58
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300
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186
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301 { ngx_null_string, NULL, NULL, 0, 0, 0 }
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58
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302 };
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303
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304
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305
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46
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306 static ngx_int_t
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307 ngx_http_ssi_header_filter(ngx_http_request_t *r)
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308 {
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146
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309 ngx_uint_t i;
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310 ngx_str_t *type;
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311 ngx_http_ssi_ctx_t *ctx;
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312 ngx_http_ssi_loc_conf_t *slcf;
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313
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314 slcf = ngx_http_get_module_loc_conf(r, ngx_http_ssi_filter_module);
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315
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316 if (!slcf->enable
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126
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317 || r->headers_out.content_type.len == 0
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318 || r->headers_out.content_length_n == 0)
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46
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319 {
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320 return ngx_http_next_header_filter(r);
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321 }
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322
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323
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146
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324 type = slcf->types->elts;
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325 for (i = 0; i < slcf->types->nelts; i++) {
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76
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326 if (r->headers_out.content_type.len >= type[i].len
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327 && ngx_strncasecmp(r->headers_out.content_type.data,
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|
328 type[i].data, type[i].len) == 0)
|
|
|
329 {
|
|
|
330 goto found;
|
|
|
331 }
|
|
|
332 }
|
|
|
333
|
|
|
334 return ngx_http_next_header_filter(r);
|
|
|
335
|
|
|
336
|
|
|
337 found:
|
|
|
338
|
|
48
|
339 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_ssi_ctx_t));
|
|
|
340 if (ctx == NULL) {
|
|
46
|
341 return NGX_ERROR;
|
|
|
342 }
|
|
|
343
|
|
|
344 ngx_http_set_ctx(r, ctx, ngx_http_ssi_filter_module);
|
|
|
345
|
|
|
346
|
|
146
|
347 ctx->value_len = slcf->value_len;
|
|
46
|
348 ctx->last_out = &ctx->out;
|
|
|
349
|
|
58
|
350 ctx->output = 1;
|
|
|
351
|
|
46
|
352 ctx->params.elts = ctx->params_array;
|
|
|
353 ctx->params.size = sizeof(ngx_table_elt_t);
|
|
|
354 ctx->params.nalloc = NGX_HTTP_SSI_PARAMS_N;
|
|
|
355 ctx->params.pool = r->pool;
|
|
|
356
|
|
58
|
357 ctx->timefmt.len = sizeof("%A, %d-%b-%Y %H:%M:%S %Z") - 1;
|
|
|
358 ctx->timefmt.data = (u_char *) "%A, %d-%b-%Y %H:%M:%S %Z";
|
|
46
|
359
|
|
96
|
360 ctx->errmsg.len =
|
|
|
361 sizeof("[an error occurred while processing the directive]") - 1;
|
|
|
362 ctx->errmsg.data = (u_char *)
|
|
|
363 "[an error occurred while processing the directive]";
|
|
|
364
|
|
46
|
365 r->filter_need_in_memory = 1;
|
|
|
366
|
|
146
|
367 if (r == r->main) {
|
|
126
|
368 ngx_http_clear_content_length(r);
|
|
|
369 ngx_http_clear_last_modified(r);
|
|
58
|
370 }
|
|
|
371
|
|
46
|
372 return ngx_http_next_header_filter(r);
|
|
|
373 }
|
|
|
374
|
|
|
375
|
|
|
376 static ngx_int_t
|
|
|
377 ngx_http_ssi_body_filter(ngx_http_request_t *r, ngx_chain_t *in)
|
|
|
378 {
|
|
216
|
379 size_t len;
|
|
146
|
380 ngx_int_t rc;
|
|
|
381 ngx_buf_t *b;
|
|
|
382 ngx_uint_t i, index;
|
|
216
|
383 ngx_chain_t *cl, **ll;
|
|
146
|
384 ngx_table_elt_t *param;
|
|
|
385 ngx_connection_t *c;
|
|
216
|
386 ngx_http_ssi_ctx_t *ctx, *mctx;
|
|
|
387 ngx_http_ssi_block_t *bl;
|
|
146
|
388 ngx_http_ssi_param_t *prm;
|
|
|
389 ngx_http_ssi_command_t *cmd;
|
|
|
390 ngx_http_ssi_loc_conf_t *slcf;
|
|
|
391 ngx_http_ssi_main_conf_t *smcf;
|
|
148
|
392 ngx_str_t *params[NGX_HTTP_SSI_MAX_PARAMS + 1];
|
|
46
|
393
|
|
|
394 ctx = ngx_http_get_module_ctx(r, ngx_http_ssi_filter_module);
|
|
|
395
|
|
194
|
396 if (ctx == NULL
|
|
|
397 || (in == NULL
|
|
|
398 && ctx->buf == NULL
|
|
|
399 && ctx->in == NULL
|
|
|
400 && ctx->busy == NULL))
|
|
|
401 {
|
|
46
|
402 return ngx_http_next_body_filter(r, in);
|
|
|
403 }
|
|
|
404
|
|
|
405 /* add the incoming chain to the chain ctx->in */
|
|
|
406
|
|
|
407 if (in) {
|
|
|
408 if (ngx_chain_add_copy(r->pool, &ctx->in, in) == NGX_ERROR) {
|
|
|
409 return NGX_ERROR;
|
|
|
410 }
|
|
|
411 }
|
|
|
412
|
|
194
|
413 if (ctx->wait) {
|
|
|
414 if (r->connection->data != r) {
|
|
|
415 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
416 "http ssi filter \"%V\" wait", &r->uri);
|
|
|
417 return NGX_AGAIN;
|
|
|
418 }
|
|
|
419
|
|
244
|
420 if (ctx->wait == r) {
|
|
|
421 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
422 "http ssi filter \"%V\" continue", &r->uri);
|
|
|
423 ctx->wait = NULL;
|
|
|
424 }
|
|
194
|
425 }
|
|
|
426
|
|
146
|
427 slcf = ngx_http_get_module_loc_conf(r, ngx_http_ssi_filter_module);
|
|
46
|
428
|
|
58
|
429 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
430 "http ssi filter \"%V\"", &r->uri);
|
|
46
|
431
|
|
48
|
432 while (ctx->in || ctx->buf) {
|
|
46
|
433
|
|
48
|
434 if (ctx->buf == NULL ){
|
|
|
435 ctx->buf = ctx->in->buf;
|
|
|
436 ctx->in = ctx->in->next;
|
|
|
437 ctx->pos = ctx->buf->pos;
|
|
|
438 }
|
|
46
|
439
|
|
|
440 if (ctx->state == ssi_start_state) {
|
|
|
441 ctx->copy_start = ctx->pos;
|
|
|
442 ctx->copy_end = ctx->pos;
|
|
|
443 }
|
|
|
444
|
|
48
|
445 b = NULL;
|
|
|
446
|
|
46
|
447 while (ctx->pos < ctx->buf->last) {
|
|
|
448
|
|
|
449 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
450 "saved: %d state: %d", ctx->saved, ctx->state);
|
|
|
451
|
|
|
452 rc = ngx_http_ssi_parse(r, ctx);
|
|
|
453
|
|
|
454 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
455 "parse: %d, looked: %d %p-%p",
|
|
|
456 rc, ctx->looked, ctx->copy_start, ctx->copy_end);
|
|
|
457
|
|
|
458 if (rc == NGX_ERROR) {
|
|
|
459 return rc;
|
|
|
460 }
|
|
|
461
|
|
|
462 if (ctx->copy_start != ctx->copy_end) {
|
|
|
463
|
|
58
|
464 if (ctx->output) {
|
|
|
465
|
|
|
466 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
467 "saved: %d", ctx->saved);
|
|
|
468
|
|
|
469 if (ctx->saved) {
|
|
|
470
|
|
|
471 if (ctx->free) {
|
|
|
472 cl = ctx->free;
|
|
|
473 ctx->free = ctx->free->next;
|
|
|
474 b = cl->buf;
|
|
|
475 ngx_memzero(b, sizeof(ngx_buf_t));
|
|
46
|
476
|
|
58
|
477 } else {
|
|
|
478 b = ngx_calloc_buf(r->pool);
|
|
|
479 if (b == NULL) {
|
|
|
480 return NGX_ERROR;
|
|
|
481 }
|
|
|
482
|
|
|
483 cl = ngx_alloc_chain_link(r->pool);
|
|
|
484 if (cl == NULL) {
|
|
|
485 return NGX_ERROR;
|
|
|
486 }
|
|
|
487
|
|
|
488 cl->buf = b;
|
|
|
489 }
|
|
|
490
|
|
|
491 b->memory = 1;
|
|
|
492 b->pos = ngx_http_ssi_string;
|
|
|
493 b->last = ngx_http_ssi_string + ctx->saved;
|
|
|
494
|
|
|
495 *ctx->last_out = cl;
|
|
|
496 ctx->last_out = &cl->next;
|
|
|
497
|
|
|
498 ctx->saved = 0;
|
|
|
499 }
|
|
48
|
500
|
|
|
501 if (ctx->free) {
|
|
|
502 cl = ctx->free;
|
|
|
503 ctx->free = ctx->free->next;
|
|
|
504 b = cl->buf;
|
|
|
505
|
|
|
506 } else {
|
|
58
|
507 b = ngx_alloc_buf(r->pool);
|
|
48
|
508 if (b == NULL) {
|
|
|
509 return NGX_ERROR;
|
|
|
510 }
|
|
|
511
|
|
|
512 cl = ngx_alloc_chain_link(r->pool);
|
|
|
513 if (cl == NULL) {
|
|
|
514 return NGX_ERROR;
|
|
|
515 }
|
|
|
516
|
|
|
517 cl->buf = b;
|
|
46
|
518 }
|
|
|
519
|
|
58
|
520 ngx_memcpy(b, ctx->buf, sizeof(ngx_buf_t));
|
|
|
521
|
|
62
|
522 b->pos = ctx->copy_start;
|
|
|
523 b->last = ctx->copy_end;
|
|
|
524 b->shadow = NULL;
|
|
58
|
525 b->last_buf = 0;
|
|
|
526 b->recycled = 0;
|
|
46
|
527
|
|
58
|
528 if (b->in_file) {
|
|
146
|
529 if (slcf->min_file_chunk < (size_t) (b->last - b->pos))
|
|
58
|
530 {
|
|
|
531 b->file_last = b->file_pos + (b->last - b->start);
|
|
|
532 b->file_pos += b->pos - b->start;
|
|
|
533
|
|
|
534 } else {
|
|
|
535 b->in_file = 0;
|
|
|
536 }
|
|
|
537 }
|
|
|
538
|
|
|
539 cl->next = NULL;
|
|
46
|
540 *ctx->last_out = cl;
|
|
|
541 ctx->last_out = &cl->next;
|
|
|
542
|
|
58
|
543 } else {
|
|
216
|
544 if (ctx->block
|
|
|
545 && ctx->saved + (ctx->copy_end - ctx->copy_start))
|
|
|
546 {
|
|
|
547 b = ngx_create_temp_buf(r->pool,
|
|
|
548 ctx->saved + (ctx->copy_end - ctx->copy_start));
|
|
|
549
|
|
|
550 if (b == NULL) {
|
|
|
551 return NGX_ERROR;
|
|
|
552 }
|
|
|
553
|
|
|
554 if (ctx->saved) {
|
|
|
555 b->last = ngx_cpymem(b->pos, ngx_http_ssi_string,
|
|
|
556 ctx->saved);
|
|
|
557 }
|
|
|
558
|
|
|
559 b->last = ngx_cpymem(b->last, ctx->copy_start,
|
|
|
560 ctx->copy_end - ctx->copy_start);
|
|
|
561
|
|
|
562 cl = ngx_alloc_chain_link(r->pool);
|
|
|
563 if (cl == NULL) {
|
|
|
564 return NGX_ERROR;
|
|
|
565 }
|
|
|
566
|
|
|
567 cl->buf = b;
|
|
|
568 cl->next = NULL;
|
|
|
569
|
|
|
570 b = NULL;
|
|
|
571
|
|
|
572 mctx = ngx_http_get_module_ctx(r->main,
|
|
|
573 ngx_http_ssi_filter_module);
|
|
|
574 bl = mctx->blocks->elts;
|
|
|
575 for (ll = &bl[mctx->blocks->nelts - 1].bufs;
|
|
|
576 *ll;
|
|
|
577 ll = &(*ll)->next)
|
|
|
578 {
|
|
|
579 /* void */
|
|
|
580 }
|
|
|
581
|
|
|
582 *ll = cl;
|
|
|
583 }
|
|
|
584
|
|
46
|
585 ctx->saved = 0;
|
|
|
586 }
|
|
|
587 }
|
|
|
588
|
|
|
589 if (ctx->state == ssi_start_state) {
|
|
|
590 ctx->copy_start = ctx->pos;
|
|
|
591 ctx->copy_end = ctx->pos;
|
|
|
592
|
|
|
593 } else {
|
|
|
594 ctx->copy_start = NULL;
|
|
|
595 ctx->copy_end = NULL;
|
|
|
596 }
|
|
|
597
|
|
|
598 if (rc == NGX_AGAIN) {
|
|
|
599 continue;
|
|
|
600 }
|
|
|
601
|
|
|
602
|
|
122
|
603 b = NULL;
|
|
|
604
|
|
46
|
605 if (rc == NGX_OK) {
|
|
|
606
|
|
146
|
607 smcf = ngx_http_get_module_main_conf(r,
|
|
|
608 ngx_http_ssi_filter_module);
|
|
|
609
|
|
|
610 cmd = ngx_hash_find(&smcf->hash, ctx->key, ctx->command.data,
|
|
|
611 ctx->command.len);
|
|
|
612
|
|
|
613 if (cmd == NULL) {
|
|
|
614 if (ctx->output) {
|
|
|
615 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
616 "invalid SSI command: \"%V\"",
|
|
|
617 &ctx->command);
|
|
|
618 goto ssi_error;
|
|
46
|
619 }
|
|
|
620
|
|
146
|
621 continue;
|
|
46
|
622 }
|
|
|
623
|
|
178
|
624 if (cmd->conditional
|
|
|
625 && (ctx->conditional == 0
|
|
|
626 || ctx->conditional > cmd->conditional))
|
|
|
627 {
|
|
|
628 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
629 "invalid context of SSI command: \"%V\"",
|
|
|
630 &ctx->command);
|
|
|
631 goto ssi_error;
|
|
|
632 }
|
|
|
633
|
|
216
|
634 if (!ctx->output && !cmd->block) {
|
|
|
635
|
|
|
636 if (ctx->block) {
|
|
|
637
|
|
|
638 /* reconstruct the SSI command text */
|
|
|
639
|
|
|
640 len = 5 + ctx->command.len + 4;
|
|
|
641
|
|
|
642 param = ctx->params.elts;
|
|
|
643 for (i = 0; i < ctx->params.nelts; i++) {
|
|
|
644 len += 1 + param[i].key.len + 2
|
|
|
645 + param[i].value.len + 1;
|
|
|
646 }
|
|
|
647
|
|
|
648 b = ngx_create_temp_buf(r->pool, len);
|
|
|
649
|
|
|
650 if (b == NULL) {
|
|
|
651 return NGX_ERROR;
|
|
|
652 }
|
|
|
653
|
|
|
654 cl = ngx_alloc_chain_link(r->pool);
|
|
|
655 if (cl == NULL) {
|
|
|
656 return NGX_ERROR;
|
|
|
657 }
|
|
|
658
|
|
|
659 cl->buf = b;
|
|
|
660 cl->next = NULL;
|
|
|
661
|
|
|
662 *b->last++ = '<';
|
|
|
663 *b->last++ = '!';
|
|
|
664 *b->last++ = '-';
|
|
|
665 *b->last++ = '-';
|
|
|
666 *b->last++ = '#';
|
|
|
667
|
|
|
668 b->last = ngx_cpymem(b->last, ctx->command.data,
|
|
|
669 ctx->command.len);
|
|
|
670
|
|
|
671 for (i = 0; i < ctx->params.nelts; i++) {
|
|
|
672 *b->last++ = ' ';
|
|
|
673 b->last = ngx_cpymem(b->last, param[i].key.data,
|
|
|
674 param[i].key.len);
|
|
|
675 *b->last++ = '=';
|
|
|
676 *b->last++ = '"';
|
|
|
677 b->last = ngx_cpymem(b->last, param[i].value.data,
|
|
|
678 param[i].value.len);
|
|
|
679 *b->last++ = '"';
|
|
|
680 }
|
|
|
681
|
|
|
682 *b->last++ = ' ';
|
|
|
683 *b->last++ = '-';
|
|
|
684 *b->last++ = '-';
|
|
|
685 *b->last++ = '>';
|
|
|
686
|
|
|
687 mctx = ngx_http_get_module_ctx(r->main,
|
|
|
688 ngx_http_ssi_filter_module);
|
|
|
689 bl = mctx->blocks->elts;
|
|
|
690 for (ll = &bl[mctx->blocks->nelts - 1].bufs;
|
|
|
691 *ll;
|
|
|
692 ll = &(*ll)->next)
|
|
|
693 {
|
|
|
694 /* void */
|
|
|
695 }
|
|
|
696
|
|
|
697 *ll = cl;
|
|
|
698
|
|
|
699 b = NULL;
|
|
|
700
|
|
|
701 continue;
|
|
|
702 }
|
|
|
703
|
|
|
704 if (cmd->conditional == 0) {
|
|
|
705 continue;
|
|
|
706 }
|
|
58
|
707 }
|
|
|
708
|
|
146
|
709 if (ctx->params.nelts > NGX_HTTP_SSI_MAX_PARAMS) {
|
|
|
710 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
711 "too many SSI command paramters: \"%V\"",
|
|
|
712 &ctx->command);
|
|
|
713 goto ssi_error;
|
|
|
714 }
|
|
|
715
|
|
46
|
716 ngx_memzero(params,
|
|
148
|
717 (NGX_HTTP_SSI_MAX_PARAMS + 1) * sizeof(ngx_str_t *));
|
|
46
|
718
|
|
|
719 param = ctx->params.elts;
|
|
|
720
|
|
|
721 for (i = 0; i < ctx->params.nelts; i++) {
|
|
|
722
|
|
|
723 for (prm = cmd->params; prm->name.len; prm++) {
|
|
|
724
|
|
|
725 if (param[i].key.len != prm->name.len
|
|
|
726 || ngx_strncmp(param[i].key.data, prm->name.data,
|
|
|
727 prm->name.len) != 0)
|
|
|
728 {
|
|
|
729 continue;
|
|
|
730 }
|
|
|
731
|
|
146
|
732 if (!prm->multiple) {
|
|
|
733 if (params[prm->index]) {
|
|
|
734 ngx_log_error(NGX_LOG_ERR,
|
|
|
735 r->connection->log, 0,
|
|
|
736 "duplicate \"%V\" parameter "
|
|
|
737 "in \"%V\" SSI command",
|
|
|
738 ¶m[i].key, &ctx->command);
|
|
|
739
|
|
|
740 goto ssi_error;
|
|
|
741 }
|
|
|
742
|
|
|
743 params[prm->index] = ¶m[i].value;
|
|
|
744
|
|
|
745 break;
|
|
46
|
746 }
|
|
|
747
|
|
146
|
748 for (index = prm->index; params[index]; index++) {
|
|
|
749 /* void */
|
|
|
750 }
|
|
|
751
|
|
|
752 params[index] = ¶m[i].value;
|
|
46
|
753
|
|
|
754 break;
|
|
|
755 }
|
|
|
756
|
|
|
757 if (prm->name.len == 0) {
|
|
|
758 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
759 "invalid parameter name: \"%V\" "
|
|
|
760 "in \"%V\" SSI command",
|
|
|
761 ¶m[i].key, &ctx->command);
|
|
|
762
|
|
|
763 goto ssi_error;
|
|
|
764 }
|
|
|
765 }
|
|
|
766
|
|
|
767 for (prm = cmd->params; prm->name.len; prm++) {
|
|
|
768 if (prm->mandatory && params[prm->index] == 0) {
|
|
|
769 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
770 "mandatory \"%V\" parameter is absent "
|
|
|
771 "in \"%V\" SSI command",
|
|
|
772 &prm->name, &ctx->command);
|
|
|
773
|
|
|
774 goto ssi_error;
|
|
|
775 }
|
|
|
776 }
|
|
|
777
|
|
58
|
778 if (cmd->flush && ctx->out) {
|
|
|
779 rc = ngx_http_ssi_output(r, ctx);
|
|
|
780
|
|
|
781 if (rc == NGX_ERROR) {
|
|
|
782 return NGX_ERROR;
|
|
|
783 }
|
|
|
784 }
|
|
|
785
|
|
118
|
786 c = r->connection;
|
|
|
787
|
|
|
788 rc = cmd->handler(r, ctx, params);
|
|
|
789
|
|
132
|
790 if (c->destroyed) {
|
|
118
|
791 return NGX_DONE;
|
|
|
792 }
|
|
|
793
|
|
|
794 if (rc == NGX_OK) {
|
|
46
|
795 continue;
|
|
|
796 }
|
|
132
|
797
|
|
194
|
798 if (rc == NGX_AGAIN) {
|
|
|
799 return NGX_AGAIN;
|
|
|
800 }
|
|
|
801
|
|
132
|
802 if (rc == NGX_ERROR) {
|
|
|
803 return NGX_ERROR;
|
|
|
804 }
|
|
46
|
805 }
|
|
|
806
|
|
|
807
|
|
|
808 /* rc == NGX_HTTP_SSI_ERROR */
|
|
|
809
|
|
48
|
810 ssi_error:
|
|
46
|
811
|
|
146
|
812 if (slcf->silent_errors) {
|
|
46
|
813 continue;
|
|
|
814 }
|
|
|
815
|
|
48
|
816 if (ctx->free) {
|
|
|
817 cl = ctx->free;
|
|
|
818 ctx->free = ctx->free->next;
|
|
|
819 b = cl->buf;
|
|
|
820 ngx_memzero(b, sizeof(ngx_buf_t));
|
|
|
821
|
|
|
822 } else {
|
|
|
823 b = ngx_calloc_buf(r->pool);
|
|
|
824 if (b == NULL) {
|
|
|
825 return NGX_ERROR;
|
|
|
826 }
|
|
|
827
|
|
|
828 cl = ngx_alloc_chain_link(r->pool);
|
|
|
829 if (cl == NULL) {
|
|
|
830 return NGX_ERROR;
|
|
|
831 }
|
|
|
832
|
|
|
833 cl->buf = b;
|
|
46
|
834 }
|
|
|
835
|
|
|
836 b->memory = 1;
|
|
96
|
837 b->pos = ctx->errmsg.data;
|
|
|
838 b->last = ctx->errmsg.data + ctx->errmsg.len;
|
|
46
|
839
|
|
|
840 cl->next = NULL;
|
|
|
841 *ctx->last_out = cl;
|
|
|
842 ctx->last_out = &cl->next;
|
|
|
843
|
|
|
844 continue;
|
|
|
845 }
|
|
|
846
|
|
236
|
847 if (ctx->buf->last_buf || ngx_buf_in_memory(ctx->buf)) {
|
|
48
|
848 if (b == NULL) {
|
|
|
849 if (ctx->free) {
|
|
|
850 cl = ctx->free;
|
|
|
851 ctx->free = ctx->free->next;
|
|
|
852 b = cl->buf;
|
|
|
853 ngx_memzero(b, sizeof(ngx_buf_t));
|
|
|
854
|
|
|
855 } else {
|
|
|
856 b = ngx_calloc_buf(r->pool);
|
|
|
857 if (b == NULL) {
|
|
|
858 return NGX_ERROR;
|
|
|
859 }
|
|
46
|
860
|
|
48
|
861 cl = ngx_alloc_chain_link(r->pool);
|
|
|
862 if (cl == NULL) {
|
|
|
863 return NGX_ERROR;
|
|
|
864 }
|
|
|
865
|
|
|
866 cl->buf = b;
|
|
|
867 }
|
|
|
868
|
|
58
|
869 b->sync = 1;
|
|
|
870
|
|
48
|
871 cl->next = NULL;
|
|
|
872 *ctx->last_out = cl;
|
|
|
873 ctx->last_out = &cl->next;
|
|
|
874 }
|
|
|
875
|
|
|
876 b->last_buf = ctx->buf->last_buf;
|
|
|
877 b->shadow = ctx->buf;
|
|
58
|
878
|
|
146
|
879 if (slcf->ignore_recycled_buffers == 0) {
|
|
58
|
880 b->recycled = ctx->buf->recycled;
|
|
|
881 }
|
|
46
|
882 }
|
|
|
883
|
|
48
|
884 ctx->buf = NULL;
|
|
|
885
|
|
46
|
886 ctx->saved = ctx->looked;
|
|
|
887 }
|
|
|
888
|
|
48
|
889 if (ctx->out == NULL && ctx->busy == NULL) {
|
|
46
|
890 return NGX_OK;
|
|
|
891 }
|
|
|
892
|
|
58
|
893 return ngx_http_ssi_output(r, ctx);
|
|
|
894 }
|
|
|
895
|
|
|
896
|
|
|
897 static ngx_int_t
|
|
|
898 ngx_http_ssi_output(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx)
|
|
|
899 {
|
|
|
900 ngx_int_t rc;
|
|
|
901 ngx_buf_t *b;
|
|
|
902 ngx_chain_t *cl;
|
|
|
903
|
|
190
|
904 #if 1
|
|
|
905 b = NULL;
|
|
|
906 for (cl = ctx->out; cl; cl = cl->next) {
|
|
192
|
907 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
908 "ssi out: %p %p", cl->buf, cl->buf->pos);
|
|
190
|
909 if (cl->buf == b) {
|
|
|
910 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
|
|
|
911 "the same buf was used in ssi");
|
|
|
912 ngx_debug_point();
|
|
|
913 return NGX_ERROR;
|
|
|
914 }
|
|
|
915 b = cl->buf;
|
|
|
916 }
|
|
|
917 #endif
|
|
|
918
|
|
46
|
919 rc = ngx_http_next_body_filter(r, ctx->out);
|
|
|
920
|
|
48
|
921 if (ctx->busy == NULL) {
|
|
|
922 ctx->busy = ctx->out;
|
|
|
923
|
|
|
924 } else {
|
|
|
925 for (cl = ctx->busy; cl->next; cl = cl->next) { /* void */ }
|
|
|
926 cl->next = ctx->out;
|
|
|
927 }
|
|
|
928
|
|
46
|
929 ctx->out = NULL;
|
|
|
930 ctx->last_out = &ctx->out;
|
|
|
931
|
|
48
|
932 while (ctx->busy) {
|
|
|
933
|
|
206
|
934 cl = ctx->busy;
|
|
|
935 b = cl->buf;
|
|
48
|
936
|
|
|
937 if (ngx_buf_size(b) != 0) {
|
|
|
938 break;
|
|
|
939 }
|
|
|
940
|
|
|
941 #if (NGX_HAVE_WRITE_ZEROCOPY)
|
|
|
942 if (b->zerocopy_busy) {
|
|
|
943 break;
|
|
|
944 }
|
|
|
945 #endif
|
|
|
946
|
|
|
947 if (b->shadow) {
|
|
|
948 b->shadow->pos = b->shadow->last;
|
|
|
949 }
|
|
|
950
|
|
|
951 ctx->busy = cl->next;
|
|
194
|
952
|
|
|
953 if (ngx_buf_in_memory(b) || b->in_file) {
|
|
|
954 /* add data bufs only to the free buf chain */
|
|
|
955
|
|
|
956 cl->next = ctx->free;
|
|
|
957 ctx->free = cl;
|
|
|
958 }
|
|
48
|
959 }
|
|
|
960
|
|
46
|
961 return rc;
|
|
|
962 }
|
|
|
963
|
|
|
964
|
|
|
965 static ngx_int_t
|
|
|
966 ngx_http_ssi_parse(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx)
|
|
|
967 {
|
|
158
|
968 u_char *p, *value, *last, *copy_end, ch;
|
|
46
|
969 size_t looked;
|
|
|
970 ngx_http_ssi_state_e state;
|
|
|
971
|
|
|
972 state = ctx->state;
|
|
|
973 looked = ctx->looked;
|
|
|
974 last = ctx->buf->last;
|
|
|
975 copy_end = ctx->copy_end;
|
|
|
976
|
|
|
977 for (p = ctx->pos; p < last; p++) {
|
|
|
978
|
|
|
979 ch = *p;
|
|
|
980
|
|
|
981 if (state == ssi_start_state) {
|
|
|
982
|
|
|
983 /* the tight loop */
|
|
|
984
|
|
48
|
985 for ( ;; ) {
|
|
|
986 if (ch == '<') {
|
|
|
987 copy_end = p;
|
|
|
988 looked = 1;
|
|
|
989 state = ssi_tag_state;
|
|
|
990
|
|
|
991 goto tag_started;
|
|
46
|
992 }
|
|
|
993
|
|
48
|
994 if (++p == last) {
|
|
|
995 break;
|
|
|
996 }
|
|
46
|
997
|
|
48
|
998 ch = *p;
|
|
46
|
999 }
|
|
|
1000
|
|
|
1001 ctx->pos = p;
|
|
|
1002 ctx->looked = looked;
|
|
|
1003 ctx->copy_end = p;
|
|
|
1004
|
|
|
1005 if (ctx->copy_start == NULL) {
|
|
|
1006 ctx->copy_start = ctx->buf->pos;
|
|
|
1007 }
|
|
|
1008
|
|
|
1009 return NGX_AGAIN;
|
|
|
1010
|
|
48
|
1011 tag_started:
|
|
|
1012
|
|
46
|
1013 continue;
|
|
|
1014 }
|
|
|
1015
|
|
|
1016 switch (state) {
|
|
|
1017
|
|
|
1018 case ssi_start_state:
|
|
|
1019 break;
|
|
|
1020
|
|
|
1021 case ssi_tag_state:
|
|
|
1022 switch (ch) {
|
|
|
1023 case '!':
|
|
|
1024 looked = 2;
|
|
|
1025 state = ssi_comment0_state;
|
|
|
1026 break;
|
|
|
1027
|
|
|
1028 case '<':
|
|
|
1029 copy_end = p;
|
|
|
1030 break;
|
|
|
1031
|
|
|
1032 default:
|
|
|
1033 copy_end = p;
|
|
|
1034 looked = 0;
|
|
|
1035 state = ssi_start_state;
|
|
|
1036 break;
|
|
|
1037 }
|
|
|
1038
|
|
|
1039 break;
|
|
|
1040
|
|
|
1041 case ssi_comment0_state:
|
|
|
1042 switch (ch) {
|
|
|
1043 case '-':
|
|
|
1044 looked = 3;
|
|
|
1045 state = ssi_comment1_state;
|
|
|
1046 break;
|
|
|
1047
|
|
|
1048 case '<':
|
|
|
1049 copy_end = p;
|
|
|
1050 looked = 1;
|
|
|
1051 state = ssi_tag_state;
|
|
|
1052 break;
|
|
|
1053
|
|
|
1054 default:
|
|
|
1055 copy_end = p;
|
|
|
1056 looked = 0;
|
|
|
1057 state = ssi_start_state;
|
|
|
1058 break;
|
|
|
1059 }
|
|
|
1060
|
|
|
1061 break;
|
|
|
1062
|
|
|
1063 case ssi_comment1_state:
|
|
|
1064 switch (ch) {
|
|
|
1065 case '-':
|
|
|
1066 looked = 4;
|
|
|
1067 state = ssi_sharp_state;
|
|
|
1068 break;
|
|
|
1069
|
|
|
1070 case '<':
|
|
|
1071 copy_end = p;
|
|
|
1072 looked = 1;
|
|
|
1073 state = ssi_tag_state;
|
|
|
1074 break;
|
|
|
1075
|
|
|
1076 default:
|
|
|
1077 copy_end = p;
|
|
|
1078 looked = 0;
|
|
|
1079 state = ssi_start_state;
|
|
|
1080 break;
|
|
|
1081 }
|
|
|
1082
|
|
|
1083 break;
|
|
|
1084
|
|
|
1085 case ssi_sharp_state:
|
|
|
1086 switch (ch) {
|
|
|
1087 case '#':
|
|
208
|
1088 if (p - ctx->pos < 4) {
|
|
|
1089 ctx->saved = 0;
|
|
|
1090 }
|
|
46
|
1091 looked = 0;
|
|
|
1092 state = ssi_precommand_state;
|
|
|
1093 break;
|
|
|
1094
|
|
|
1095 case '<':
|
|
|
1096 copy_end = p;
|
|
|
1097 looked = 1;
|
|
|
1098 state = ssi_tag_state;
|
|
|
1099 break;
|
|
|
1100
|
|
|
1101 default:
|
|
|
1102 copy_end = p;
|
|
|
1103 looked = 0;
|
|
|
1104 state = ssi_start_state;
|
|
|
1105 break;
|
|
|
1106 }
|
|
|
1107
|
|
|
1108 break;
|
|
|
1109
|
|
|
1110 case ssi_precommand_state:
|
|
|
1111 switch (ch) {
|
|
|
1112 case ' ':
|
|
|
1113 case CR:
|
|
|
1114 case LF:
|
|
|
1115 case '\t':
|
|
|
1116 break;
|
|
|
1117
|
|
|
1118 default:
|
|
|
1119 ctx->command.len = 1;
|
|
|
1120 ctx->command.data = ngx_palloc(r->pool,
|
|
158
|
1121 NGX_HTTP_SSI_COMMAND_LEN);
|
|
46
|
1122 if (ctx->command.data == NULL) {
|
|
|
1123 return NGX_ERROR;
|
|
|
1124 }
|
|
|
1125
|
|
|
1126 ctx->command.data[0] = ch;
|
|
158
|
1127
|
|
146
|
1128 ctx->key = 0;
|
|
|
1129 ctx->key = ngx_hash(ctx->key, ch);
|
|
|
1130
|
|
46
|
1131 ctx->params.nelts = 0;
|
|
178
|
1132
|
|
46
|
1133 state = ssi_command_state;
|
|
|
1134 break;
|
|
|
1135 }
|
|
|
1136
|
|
|
1137 break;
|
|
|
1138
|
|
|
1139 case ssi_command_state:
|
|
|
1140 switch (ch) {
|
|
|
1141 case ' ':
|
|
|
1142 case CR:
|
|
|
1143 case LF:
|
|
|
1144 case '\t':
|
|
|
1145 state = ssi_preparam_state;
|
|
|
1146 break;
|
|
|
1147
|
|
|
1148 case '-':
|
|
|
1149 state = ssi_comment_end0_state;
|
|
|
1150 break;
|
|
|
1151
|
|
|
1152 default:
|
|
|
1153 if (ctx->command.len == NGX_HTTP_SSI_COMMAND_LEN) {
|
|
|
1154 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
158
|
1155 "the \"%V%c...\" SSI command is too long",
|
|
|
1156 &ctx->command, ch);
|
|
46
|
1157
|
|
|
1158 state = ssi_error_state;
|
|
|
1159 break;
|
|
|
1160 }
|
|
158
|
1161
|
|
|
1162 ctx->command.data[ctx->command.len++] = ch;
|
|
|
1163 ctx->key = ngx_hash(ctx->key, ch);
|
|
46
|
1164 }
|
|
|
1165
|
|
|
1166 break;
|
|
|
1167
|
|
|
1168 case ssi_preparam_state:
|
|
|
1169 switch (ch) {
|
|
|
1170 case ' ':
|
|
|
1171 case CR:
|
|
|
1172 case LF:
|
|
|
1173 case '\t':
|
|
|
1174 break;
|
|
|
1175
|
|
|
1176 case '-':
|
|
|
1177 state = ssi_comment_end0_state;
|
|
|
1178 break;
|
|
|
1179
|
|
|
1180 default:
|
|
48
|
1181 ctx->param = ngx_array_push(&ctx->params);
|
|
|
1182 if (ctx->param == NULL) {
|
|
46
|
1183 return NGX_ERROR;
|
|
|
1184 }
|
|
|
1185
|
|
|
1186 ctx->param->key.len = 1;
|
|
|
1187 ctx->param->key.data = ngx_palloc(r->pool,
|
|
158
|
1188 NGX_HTTP_SSI_PARAM_LEN);
|
|
46
|
1189 if (ctx->param->key.data == NULL) {
|
|
|
1190 return NGX_ERROR;
|
|
|
1191 }
|
|
|
1192
|
|
|
1193 ctx->param->key.data[0] = ch;
|
|
|
1194
|
|
|
1195 ctx->param->value.len = 0;
|
|
158
|
1196
|
|
|
1197 if (ctx->value_buf == NULL) {
|
|
|
1198 ctx->param->value.data = ngx_palloc(r->pool,
|
|
|
1199 ctx->value_len);
|
|
|
1200 if (ctx->param->value.data == NULL) {
|
|
|
1201 return NGX_ERROR;
|
|
|
1202 }
|
|
|
1203
|
|
|
1204 } else {
|
|
|
1205 ctx->param->value.data = ctx->value_buf;
|
|
46
|
1206 }
|
|
|
1207
|
|
|
1208 state = ssi_param_state;
|
|
|
1209 break;
|
|
|
1210 }
|
|
|
1211
|
|
|
1212 break;
|
|
|
1213
|
|
|
1214 case ssi_param_state:
|
|
|
1215 switch (ch) {
|
|
|
1216 case ' ':
|
|
|
1217 case CR:
|
|
|
1218 case LF:
|
|
|
1219 case '\t':
|
|
|
1220 state = ssi_preequal_state;
|
|
|
1221 break;
|
|
|
1222
|
|
|
1223 case '=':
|
|
|
1224 state = ssi_prevalue_state;
|
|
|
1225 break;
|
|
|
1226
|
|
|
1227 case '-':
|
|
|
1228 state = ssi_error_end0_state;
|
|
|
1229
|
|
|
1230 ctx->param->key.data[ctx->param->key.len++] = ch;
|
|
|
1231 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1232 "invalid \"%V\" parameter in \"%V\" SSI command",
|
|
|
1233 &ctx->param->key, &ctx->command);
|
|
|
1234 break;
|
|
|
1235
|
|
|
1236 default:
|
|
|
1237 if (ctx->param->key.len == NGX_HTTP_SSI_PARAM_LEN) {
|
|
|
1238 state = ssi_error_state;
|
|
|
1239 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
158
|
1240 "too long \"%V%c...\" parameter in "
|
|
46
|
1241 "\"%V\" SSI command",
|
|
158
|
1242 &ctx->param->key, ch, &ctx->command);
|
|
46
|
1243 break;
|
|
|
1244 }
|
|
158
|
1245
|
|
|
1246 ctx->param->key.data[ctx->param->key.len++] = ch;
|
|
46
|
1247 }
|
|
|
1248
|
|
|
1249 break;
|
|
|
1250
|
|
|
1251 case ssi_preequal_state:
|
|
|
1252 switch (ch) {
|
|
|
1253 case ' ':
|
|
|
1254 case CR:
|
|
|
1255 case LF:
|
|
|
1256 case '\t':
|
|
|
1257 break;
|
|
|
1258
|
|
|
1259 case '=':
|
|
|
1260 state = ssi_prevalue_state;
|
|
|
1261 break;
|
|
|
1262
|
|
|
1263 default:
|
|
|
1264 if (ch == '-') {
|
|
|
1265 state = ssi_error_end0_state;
|
|
|
1266 } else {
|
|
|
1267 state = ssi_error_state;
|
|
|
1268 }
|
|
|
1269
|
|
|
1270 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1271 "unexpected \"%c\" symbol after \"%V\" "
|
|
|
1272 "parameter in \"%V\" SSI command",
|
|
|
1273 ch, &ctx->param->key, &ctx->command);
|
|
|
1274 break;
|
|
|
1275 }
|
|
|
1276
|
|
|
1277 break;
|
|
|
1278
|
|
|
1279 case ssi_prevalue_state:
|
|
|
1280 switch (ch) {
|
|
|
1281 case ' ':
|
|
|
1282 case CR:
|
|
|
1283 case LF:
|
|
|
1284 case '\t':
|
|
|
1285 break;
|
|
|
1286
|
|
|
1287 case '"':
|
|
|
1288 state = ssi_double_quoted_value_state;
|
|
|
1289 break;
|
|
|
1290
|
|
|
1291 case '\'':
|
|
|
1292 state = ssi_quoted_value_state;
|
|
|
1293 break;
|
|
|
1294
|
|
|
1295 default:
|
|
|
1296 if (ch == '-') {
|
|
|
1297 state = ssi_error_end0_state;
|
|
|
1298 } else {
|
|
|
1299 state = ssi_error_state;
|
|
|
1300 }
|
|
|
1301
|
|
|
1302 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1303 "unexpected \"%c\" symbol before value of "
|
|
|
1304 "\"%V\" parameter in \"%V\" SSI command",
|
|
|
1305 ch, &ctx->param->key, &ctx->command);
|
|
|
1306 break;
|
|
|
1307 }
|
|
|
1308
|
|
|
1309 break;
|
|
|
1310
|
|
|
1311 case ssi_double_quoted_value_state:
|
|
|
1312 switch (ch) {
|
|
108
|
1313 case '"':
|
|
|
1314 state = ssi_postparam_state;
|
|
|
1315 break;
|
|
|
1316
|
|
46
|
1317 case '\\':
|
|
|
1318 ctx->saved_state = ssi_double_quoted_value_state;
|
|
|
1319 state = ssi_quoted_symbol_state;
|
|
108
|
1320
|
|
|
1321 /* fall through */
|
|
46
|
1322
|
|
|
1323 default:
|
|
|
1324 if (ctx->param->value.len == ctx->value_len) {
|
|
|
1325 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
158
|
1326 "too long \"%V%c...\" value of \"%V\" "
|
|
|
1327 "parameter in \"%V\" SSI command",
|
|
|
1328 &ctx->param->value, ch, &ctx->param->key,
|
|
46
|
1329 &ctx->command);
|
|
|
1330 state = ssi_error_state;
|
|
|
1331 break;
|
|
|
1332 }
|
|
158
|
1333
|
|
|
1334 ctx->param->value.data[ctx->param->value.len++] = ch;
|
|
46
|
1335 }
|
|
|
1336
|
|
|
1337 break;
|
|
|
1338
|
|
|
1339 case ssi_quoted_value_state:
|
|
|
1340 switch (ch) {
|
|
108
|
1341 case '\'':
|
|
|
1342 state = ssi_postparam_state;
|
|
|
1343 break;
|
|
|
1344
|
|
46
|
1345 case '\\':
|
|
|
1346 ctx->saved_state = ssi_quoted_value_state;
|
|
|
1347 state = ssi_quoted_symbol_state;
|
|
108
|
1348
|
|
|
1349 /* fall through */
|
|
46
|
1350
|
|
|
1351 default:
|
|
|
1352 if (ctx->param->value.len == ctx->value_len) {
|
|
|
1353 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
158
|
1354 "too long \"%V%c...\" value of \"%V\" "
|
|
|
1355 "parameter in \"%V\" SSI command",
|
|
|
1356 &ctx->param->value, ch, &ctx->param->key,
|
|
46
|
1357 &ctx->command);
|
|
|
1358 state = ssi_error_state;
|
|
|
1359 break;
|
|
|
1360 }
|
|
158
|
1361
|
|
|
1362 ctx->param->value.data[ctx->param->value.len++] = ch;
|
|
46
|
1363 }
|
|
|
1364
|
|
|
1365 break;
|
|
|
1366
|
|
|
1367 case ssi_quoted_symbol_state:
|
|
108
|
1368 state = ctx->saved_state;
|
|
|
1369
|
|
46
|
1370 ctx->param->value.data[ctx->param->value.len++] = ch;
|
|
|
1371
|
|
|
1372 break;
|
|
|
1373
|
|
|
1374 case ssi_postparam_state:
|
|
158
|
1375
|
|
200
|
1376 if (ctx->param->value.len + 1 < ctx->value_len / 2) {
|
|
|
1377 value = ngx_palloc(r->pool, ctx->param->value.len + 1);
|
|
158
|
1378 if (value == NULL) {
|
|
|
1379 return NGX_ERROR;
|
|
|
1380 }
|
|
|
1381
|
|
|
1382 ngx_memcpy(value, ctx->param->value.data,
|
|
|
1383 ctx->param->value.len);
|
|
|
1384
|
|
|
1385 ctx->value_buf = ctx->param->value.data;
|
|
|
1386 ctx->param->value.data = value;
|
|
|
1387
|
|
|
1388 } else {
|
|
|
1389 ctx->value_buf = NULL;
|
|
|
1390 }
|
|
|
1391
|
|
46
|
1392 switch (ch) {
|
|
|
1393 case ' ':
|
|
|
1394 case CR:
|
|
|
1395 case LF:
|
|
|
1396 case '\t':
|
|
|
1397 state = ssi_preparam_state;
|
|
|
1398 break;
|
|
|
1399
|
|
|
1400 case '-':
|
|
|
1401 state = ssi_comment_end0_state;
|
|
|
1402 break;
|
|
|
1403
|
|
|
1404 default:
|
|
|
1405 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1406 "unexpected \"%c\" symbol after \"%V\" value "
|
|
|
1407 "of \"%V\" parameter in \"%V\" SSI command",
|
|
|
1408 ch, &ctx->param->value, &ctx->param->key,
|
|
|
1409 &ctx->command);
|
|
|
1410 state = ssi_error_state;
|
|
|
1411 break;
|
|
|
1412 }
|
|
|
1413
|
|
|
1414 break;
|
|
|
1415
|
|
|
1416 case ssi_comment_end0_state:
|
|
|
1417 switch (ch) {
|
|
|
1418 case '-':
|
|
|
1419 state = ssi_comment_end1_state;
|
|
|
1420 break;
|
|
|
1421
|
|
|
1422 default:
|
|
|
1423 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1424 "unexpected \"%c\" symbol in \"%V\" SSI command",
|
|
|
1425 ch, &ctx->command);
|
|
|
1426 state = ssi_error_state;
|
|
|
1427 break;
|
|
|
1428 }
|
|
|
1429
|
|
|
1430 break;
|
|
|
1431
|
|
|
1432 case ssi_comment_end1_state:
|
|
|
1433 switch (ch) {
|
|
|
1434 case '>':
|
|
|
1435 ctx->state = ssi_start_state;
|
|
|
1436 ctx->pos = p + 1;
|
|
|
1437 ctx->looked = looked;
|
|
|
1438 ctx->copy_end = copy_end;
|
|
|
1439
|
|
|
1440 if (ctx->copy_start == NULL && copy_end) {
|
|
|
1441 ctx->copy_start = ctx->buf->pos;
|
|
|
1442 }
|
|
|
1443
|
|
|
1444 return NGX_OK;
|
|
|
1445
|
|
|
1446 default:
|
|
|
1447 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1448 "unexpected \"%c\" symbol in \"%V\" SSI command",
|
|
|
1449 ch, &ctx->command);
|
|
|
1450 state = ssi_error_state;
|
|
|
1451 break;
|
|
|
1452 }
|
|
|
1453
|
|
|
1454 break;
|
|
|
1455
|
|
|
1456 case ssi_error_state:
|
|
|
1457 switch (ch) {
|
|
|
1458 case '-':
|
|
|
1459 state = ssi_error_end0_state;
|
|
|
1460 break;
|
|
|
1461
|
|
|
1462 default:
|
|
|
1463 break;
|
|
|
1464 }
|
|
|
1465
|
|
|
1466 break;
|
|
|
1467
|
|
|
1468 case ssi_error_end0_state:
|
|
|
1469 switch (ch) {
|
|
|
1470 case '-':
|
|
|
1471 state = ssi_error_end1_state;
|
|
|
1472 break;
|
|
|
1473
|
|
|
1474 default:
|
|
|
1475 state = ssi_error_state;
|
|
|
1476 break;
|
|
|
1477 }
|
|
|
1478
|
|
|
1479 break;
|
|
|
1480
|
|
|
1481 case ssi_error_end1_state:
|
|
|
1482 switch (ch) {
|
|
|
1483 case '>':
|
|
|
1484 ctx->state = ssi_start_state;
|
|
|
1485 ctx->pos = p + 1;
|
|
|
1486 ctx->looked = looked;
|
|
|
1487 ctx->copy_end = copy_end;
|
|
|
1488
|
|
|
1489 if (ctx->copy_start == NULL && copy_end) {
|
|
|
1490 ctx->copy_start = ctx->buf->pos;
|
|
|
1491 }
|
|
|
1492
|
|
|
1493 return NGX_HTTP_SSI_ERROR;
|
|
|
1494
|
|
|
1495 default:
|
|
|
1496 state = ssi_error_state;
|
|
|
1497 break;
|
|
|
1498 }
|
|
|
1499
|
|
|
1500 break;
|
|
|
1501 }
|
|
|
1502 }
|
|
|
1503
|
|
|
1504 ctx->state = state;
|
|
|
1505 ctx->pos = p;
|
|
|
1506 ctx->looked = looked;
|
|
|
1507
|
|
|
1508 ctx->copy_end = (state == ssi_start_state) ? p : copy_end;
|
|
|
1509
|
|
|
1510 if (ctx->copy_start == NULL && ctx->copy_end) {
|
|
|
1511 ctx->copy_start = ctx->buf->pos;
|
|
|
1512 }
|
|
|
1513
|
|
|
1514 return NGX_AGAIN;
|
|
|
1515 }
|
|
|
1516
|
|
|
1517
|
|
102
|
1518 static ngx_str_t *
|
|
160
|
1519 ngx_http_ssi_get_variable(ngx_http_request_t *r, ngx_str_t *name,
|
|
|
1520 ngx_uint_t key)
|
|
102
|
1521 {
|
|
|
1522 ngx_uint_t i;
|
|
|
1523 ngx_http_ssi_var_t *var;
|
|
|
1524 ngx_http_ssi_ctx_t *ctx;
|
|
|
1525
|
|
|
1526 ctx = ngx_http_get_module_ctx(r->main, ngx_http_ssi_filter_module);
|
|
|
1527
|
|
216
|
1528 if (ctx->variables == NULL) {
|
|
|
1529 return NULL;
|
|
|
1530 }
|
|
|
1531
|
|
|
1532 var = ctx->variables->elts;
|
|
|
1533 for (i = 0; i < ctx->variables->nelts; i++) {
|
|
102
|
1534 if (name->len != var[i].name.len) {
|
|
|
1535 continue;
|
|
|
1536 }
|
|
|
1537
|
|
160
|
1538 if (key != var[i].key) {
|
|
|
1539 continue;
|
|
|
1540 }
|
|
|
1541
|
|
|
1542 if (ngx_strncmp(name->data, var[i].name.data, name->len) == 0) {
|
|
102
|
1543 return &var[i].value;
|
|
|
1544 }
|
|
|
1545 }
|
|
|
1546
|
|
|
1547 return NULL;
|
|
|
1548 }
|
|
|
1549
|
|
|
1550
|
|
|
1551 static ngx_int_t
|
|
|
1552 ngx_http_ssi_evaluate_string(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
|
|
|
1553 ngx_str_t *text, ngx_uint_t flags)
|
|
|
1554 {
|
|
122
|
1555 u_char ch, *p, **value, *data, *part_data;
|
|
|
1556 size_t *size, len, prefix, part_len;
|
|
|
1557 ngx_str_t var, *val;
|
|
160
|
1558 ngx_int_t key;
|
|
200
|
1559 ngx_uint_t i, j, n, bracket, quoted;
|
|
102
|
1560 ngx_array_t lengths, values;
|
|
|
1561 ngx_http_variable_value_t *vv;
|
|
|
1562
|
|
|
1563 n = ngx_http_script_variables_count(text);
|
|
|
1564
|
|
|
1565 if (n == 0) {
|
|
|
1566
|
|
206
|
1567 data = text->data;
|
|
|
1568 p = data;
|
|
|
1569
|
|
|
1570 if ((flags & NGX_HTTP_SSI_ADD_PREFIX) && text->data[0] != '/') {
|
|
|
1571
|
|
102
|
1572 for (prefix = r->uri.len; prefix; prefix--) {
|
|
|
1573 if (r->uri.data[prefix - 1] == '/') {
|
|
|
1574 break;
|
|
|
1575 }
|
|
|
1576 }
|
|
|
1577
|
|
|
1578 if (prefix) {
|
|
|
1579 len = prefix + text->len;
|
|
|
1580
|
|
|
1581 data = ngx_palloc(r->pool, len);
|
|
|
1582 if (data == NULL) {
|
|
|
1583 return NGX_ERROR;
|
|
|
1584 }
|
|
|
1585
|
|
122
|
1586 p = ngx_copy(data, r->uri.data, prefix);
|
|
102
|
1587 }
|
|
|
1588 }
|
|
|
1589
|
|
206
|
1590 quoted = 0;
|
|
|
1591
|
|
|
1592 for (i = 0 ; i < text->len; i++) {
|
|
|
1593 ch = text->data[i];
|
|
|
1594
|
|
|
1595 if (!quoted) {
|
|
|
1596
|
|
|
1597 if (ch == '\\') {
|
|
|
1598 quoted = 1;
|
|
|
1599 continue;
|
|
|
1600 }
|
|
|
1601
|
|
|
1602 } else {
|
|
|
1603 quoted = 0;
|
|
|
1604
|
|
|
1605 if (ch != '\\' && ch != '\'' && ch != '"' && ch != '$') {
|
|
|
1606 *p++ = '\\';
|
|
|
1607 }
|
|
|
1608 }
|
|
|
1609
|
|
|
1610 *p++ = ch;
|
|
|
1611 }
|
|
|
1612
|
|
|
1613 text->len = p - data;
|
|
|
1614 text->data = data;
|
|
|
1615
|
|
102
|
1616 return NGX_OK;
|
|
|
1617 }
|
|
|
1618
|
|
|
1619 if (ngx_array_init(&lengths, r->pool, 8, sizeof(size_t *)) != NGX_OK) {
|
|
|
1620 return NGX_ERROR;
|
|
|
1621 }
|
|
|
1622
|
|
|
1623 if (ngx_array_init(&values, r->pool, 8, sizeof(u_char *)) != NGX_OK) {
|
|
|
1624 return NGX_ERROR;
|
|
|
1625 }
|
|
|
1626
|
|
|
1627 len = 0;
|
|
|
1628 i = 0;
|
|
|
1629
|
|
|
1630 while (i < text->len) {
|
|
|
1631
|
|
|
1632 if (text->data[i] == '$') {
|
|
|
1633
|
|
|
1634 var.len = 0;
|
|
|
1635
|
|
|
1636 if (++i == text->len) {
|
|
|
1637 goto invalid_variable;
|
|
|
1638 }
|
|
|
1639
|
|
|
1640 if (text->data[i] == '{') {
|
|
|
1641 bracket = 1;
|
|
|
1642
|
|
|
1643 if (++i == text->len) {
|
|
|
1644 goto invalid_variable;
|
|
|
1645 }
|
|
|
1646
|
|
|
1647 var.data = &text->data[i];
|
|
|
1648
|
|
|
1649 } else {
|
|
|
1650 bracket = 0;
|
|
|
1651 var.data = &text->data[i];
|
|
|
1652 }
|
|
|
1653
|
|
|
1654 for ( /* void */ ; i < text->len; i++, var.len++) {
|
|
|
1655 ch = text->data[i];
|
|
|
1656
|
|
|
1657 if (ch == '}' && bracket) {
|
|
|
1658 i++;
|
|
|
1659 bracket = 0;
|
|
|
1660 break;
|
|
|
1661 }
|
|
|
1662
|
|
|
1663 if ((ch >= 'A' && ch <= 'Z')
|
|
|
1664 || (ch >= 'a' && ch <= 'z')
|
|
|
1665 || (ch >= '0' && ch <= '9')
|
|
|
1666 || ch == '_')
|
|
|
1667 {
|
|
|
1668 continue;
|
|
|
1669 }
|
|
|
1670
|
|
|
1671 break;
|
|
|
1672 }
|
|
|
1673
|
|
|
1674 if (bracket) {
|
|
|
1675 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1676 "the closing bracket in \"%V\" "
|
|
|
1677 "variable is missing", &var);
|
|
|
1678 return NGX_ERROR;
|
|
|
1679 }
|
|
|
1680
|
|
126
|
1681 if (var.len == 0) {
|
|
102
|
1682 goto invalid_variable;
|
|
|
1683 }
|
|
|
1684
|
|
160
|
1685 key = 0;
|
|
|
1686
|
|
102
|
1687 for (j = 0; j < var.len; j++) {
|
|
|
1688 var.data[j] = ngx_tolower(var.data[j]);
|
|
160
|
1689 key = ngx_hash(key, var.data[j]);
|
|
102
|
1690 }
|
|
|
1691
|
|
160
|
1692 val = ngx_http_ssi_get_variable(r, &var, key);
|
|
102
|
1693
|
|
|
1694 if (val == NULL) {
|
|
184
|
1695 vv = ngx_http_get_variable(r, &var, key,
|
|
|
1696 flags & NGX_HTTP_SSI_EXPR_TEST);
|
|
102
|
1697 if (vv == NULL) {
|
|
|
1698 return NGX_ERROR;
|
|
|
1699 }
|
|
|
1700
|
|
122
|
1701 if (vv->not_found) {
|
|
102
|
1702 continue;
|
|
|
1703 }
|
|
|
1704
|
|
122
|
1705 part_data = vv->data;
|
|
|
1706 part_len = vv->len;
|
|
102
|
1707
|
|
|
1708 } else {
|
|
122
|
1709 part_data = val->data;
|
|
|
1710 part_len = val->len;
|
|
102
|
1711 }
|
|
|
1712
|
|
|
1713 } else {
|
|
122
|
1714 part_data = &text->data[i];
|
|
200
|
1715 quoted = 0;
|
|
122
|
1716
|
|
|
1717 for (p = part_data; i < text->len; i++) {
|
|
108
|
1718 ch = text->data[i];
|
|
|
1719
|
|
200
|
1720 if (!quoted) {
|
|
|
1721
|
|
|
1722 if (ch == '\\') {
|
|
|
1723 quoted = 1;
|
|
|
1724 continue;
|
|
|
1725 }
|
|
|
1726
|
|
|
1727 if (ch == '$') {
|
|
108
|
1728 break;
|
|
|
1729 }
|
|
|
1730
|
|
200
|
1731 } else {
|
|
|
1732 quoted = 0;
|
|
|
1733
|
|
|
1734 if (ch != '\\' && ch != '\'' && ch != '"' && ch != '$') {
|
|
|
1735 *p++ = '\\';
|
|
|
1736 }
|
|
108
|
1737 }
|
|
|
1738
|
|
|
1739 *p++ = ch;
|
|
102
|
1740 }
|
|
108
|
1741
|
|
122
|
1742 part_len = p - part_data;
|
|
102
|
1743 }
|
|
|
1744
|
|
122
|
1745 len += part_len;
|
|
102
|
1746
|
|
|
1747 size = ngx_array_push(&lengths);
|
|
|
1748 if (size == NULL) {
|
|
|
1749 return NGX_ERROR;
|
|
|
1750 }
|
|
|
1751
|
|
122
|
1752 *size = part_len;
|
|
102
|
1753
|
|
|
1754 value = ngx_array_push(&values);
|
|
|
1755 if (value == NULL) {
|
|
|
1756 return NGX_ERROR;
|
|
|
1757 }
|
|
|
1758
|
|
122
|
1759 *value = part_data;
|
|
102
|
1760 }
|
|
|
1761
|
|
|
1762 prefix = 0;
|
|
|
1763
|
|
|
1764 size = lengths.elts;
|
|
|
1765 value = values.elts;
|
|
|
1766
|
|
|
1767 if (flags & NGX_HTTP_SSI_ADD_PREFIX) {
|
|
|
1768 for (i = 0; i < values.nelts; i++) {
|
|
|
1769 if (size[i] != 0) {
|
|
|
1770 if (*value[i] != '/') {
|
|
|
1771 for (prefix = r->uri.len; prefix; prefix--) {
|
|
|
1772 if (r->uri.data[prefix - 1] == '/') {
|
|
|
1773 len += prefix;
|
|
|
1774 break;
|
|
|
1775 }
|
|
|
1776 }
|
|
|
1777 }
|
|
|
1778
|
|
|
1779 break;
|
|
|
1780 }
|
|
|
1781 }
|
|
|
1782 }
|
|
|
1783
|
|
178
|
1784 p = ngx_palloc(r->pool, len + ((flags & NGX_HTTP_SSI_ADD_ZERO) ? 1 : 0));
|
|
102
|
1785 if (p == NULL) {
|
|
|
1786 return NGX_ERROR;
|
|
|
1787 }
|
|
|
1788
|
|
|
1789 text->len = len;
|
|
|
1790 text->data = p;
|
|
|
1791
|
|
122
|
1792 p = ngx_copy(p, r->uri.data, prefix);
|
|
102
|
1793
|
|
|
1794 for (i = 0; i < values.nelts; i++) {
|
|
122
|
1795 p = ngx_copy(p, value[i], size[i]);
|
|
102
|
1796 }
|
|
|
1797
|
|
|
1798 return NGX_OK;
|
|
|
1799
|
|
|
1800 invalid_variable:
|
|
|
1801
|
|
|
1802 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1803 "invalid variable name in \"%V\"", text);
|
|
|
1804
|
|
|
1805 return NGX_ERROR;
|
|
|
1806 }
|
|
|
1807
|
|
|
1808
|
|
|
1809 static ngx_int_t
|
|
|
1810 ngx_http_ssi_include(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
|
|
|
1811 ngx_str_t **params)
|
|
|
1812 {
|
|
216
|
1813 ngx_int_t rc;
|
|
|
1814 ngx_str_t *uri, *file, *wait, *stub, args;
|
|
|
1815 ngx_buf_t *b;
|
|
|
1816 ngx_uint_t flags, i;
|
|
|
1817 ngx_chain_t *out, *cl, *tl, **ll;
|
|
244
|
1818 ngx_http_request_t *sr;
|
|
216
|
1819 ngx_http_ssi_ctx_t *mctx;
|
|
|
1820 ngx_http_ssi_block_t *bl;
|
|
102
|
1821
|
|
|
1822 uri = params[NGX_HTTP_SSI_INCLUDE_VIRTUAL];
|
|
|
1823 file = params[NGX_HTTP_SSI_INCLUDE_FILE];
|
|
194
|
1824 wait = params[NGX_HTTP_SSI_INCLUDE_WAIT];
|
|
216
|
1825 stub = params[NGX_HTTP_SSI_INCLUDE_STUB];
|
|
102
|
1826
|
|
|
1827 if (uri && file) {
|
|
|
1828 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1829 "inlcusion may be either virtual=\"%V\" or file=\"%V\"",
|
|
|
1830 uri, file);
|
|
|
1831 return NGX_HTTP_SSI_ERROR;
|
|
|
1832 }
|
|
|
1833
|
|
|
1834 if (uri == NULL && file == NULL) {
|
|
|
1835 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1836 "no parameter in \"include\" SSI command");
|
|
|
1837 return NGX_HTTP_SSI_ERROR;
|
|
|
1838 }
|
|
|
1839
|
|
194
|
1840 if (wait) {
|
|
|
1841 if (uri == NULL) {
|
|
|
1842 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
216
|
1843 "\"wait\" may not be used with file=\"%V\"", file);
|
|
194
|
1844 return NGX_HTTP_SSI_ERROR;
|
|
|
1845 }
|
|
|
1846
|
|
|
1847 if (wait->len == 2 && ngx_strncasecmp(wait->data, "no", 2) == 0) {
|
|
|
1848 wait = NULL;
|
|
|
1849
|
|
|
1850 } else if (wait->len != 3 || ngx_strncasecmp(wait->data, "yes", 3) != 0)
|
|
|
1851 {
|
|
|
1852 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1853 "invalid value \"%V\" in the \"wait\" parameter",
|
|
216
|
1854 wait);
|
|
194
|
1855 return NGX_HTTP_SSI_ERROR;
|
|
|
1856 }
|
|
|
1857 }
|
|
|
1858
|
|
102
|
1859 if (uri == NULL) {
|
|
|
1860 uri = file;
|
|
|
1861 }
|
|
|
1862
|
|
|
1863 if (ngx_http_ssi_evaluate_string(r, ctx, uri, NGX_HTTP_SSI_ADD_PREFIX)
|
|
|
1864 != NGX_OK)
|
|
|
1865 {
|
|
|
1866 return NGX_HTTP_SSI_ERROR;
|
|
|
1867 }
|
|
|
1868
|
|
|
1869 args.len = 0;
|
|
|
1870 args.data = NULL;
|
|
122
|
1871 flags = 0;
|
|
|
1872
|
|
|
1873 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1874 "ssi include: \"%V\"", uri);
|
|
|
1875
|
|
|
1876 if (ngx_http_parse_unsafe_uri(r, uri, &args, &flags) != NGX_OK) {
|
|
|
1877 return NGX_HTTP_SSI_ERROR;
|
|
102
|
1878 }
|
|
|
1879
|
|
216
|
1880 out = NULL;
|
|
|
1881
|
|
|
1882 if (stub) {
|
|
|
1883 mctx = ngx_http_get_module_ctx(r->main, ngx_http_ssi_filter_module);
|
|
|
1884
|
|
|
1885 if (mctx->blocks) {
|
|
|
1886 bl = mctx->blocks->elts;
|
|
|
1887 for (i = 0; i < mctx->blocks->nelts; i++) {
|
|
|
1888 if (stub->len == bl[i].name.len
|
|
|
1889 && ngx_strncmp(stub->data, bl[i].name.data, stub->len) == 0)
|
|
|
1890 {
|
|
|
1891 goto found;
|
|
|
1892 }
|
|
|
1893 }
|
|
|
1894 }
|
|
|
1895
|
|
|
1896 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1897 "\"stub\"=\"%V\" for \"include\" not found", stub);
|
|
|
1898 return NGX_HTTP_SSI_ERROR;
|
|
|
1899
|
|
|
1900 found:
|
|
|
1901
|
|
|
1902 if (bl[i].count++) {
|
|
|
1903
|
|
|
1904 ll = &out;
|
|
|
1905
|
|
|
1906 for (tl = bl[i].bufs; tl; tl = tl->next) {
|
|
|
1907
|
|
|
1908 if (ctx->free) {
|
|
|
1909 cl = ctx->free;
|
|
|
1910 ctx->free = ctx->free->next;
|
|
|
1911 b = cl->buf;
|
|
|
1912
|
|
|
1913 } else {
|
|
|
1914 b = ngx_alloc_buf(r->pool);
|
|
|
1915 if (b == NULL) {
|
|
|
1916 return NGX_ERROR;
|
|
|
1917 }
|
|
|
1918
|
|
|
1919 cl = ngx_alloc_chain_link(r->pool);
|
|
|
1920 if (cl == NULL) {
|
|
|
1921 return NGX_ERROR;
|
|
|
1922 }
|
|
|
1923
|
|
|
1924 cl->buf = b;
|
|
|
1925 }
|
|
|
1926
|
|
|
1927 ngx_memcpy(b, tl->buf, sizeof(ngx_buf_t));
|
|
|
1928
|
|
|
1929 b->pos = b->start;
|
|
|
1930
|
|
|
1931 *ll = cl;
|
|
|
1932 cl->next = NULL;
|
|
|
1933 ll = &cl->next;
|
|
|
1934 }
|
|
|
1935
|
|
|
1936 } else {
|
|
|
1937 out = bl[i].bufs;
|
|
|
1938 }
|
|
|
1939 }
|
|
|
1940
|
|
244
|
1941 rc = ngx_http_subrequest(r, uri, &args, &sr, out, flags);
|
|
194
|
1942
|
|
|
1943 if (rc == NGX_ERROR) {
|
|
102
|
1944 return NGX_HTTP_SSI_ERROR;
|
|
|
1945 }
|
|
|
1946
|
|
194
|
1947 if (wait == NULL) {
|
|
|
1948 return NGX_OK;
|
|
|
1949 }
|
|
|
1950
|
|
|
1951 if (rc == NGX_AGAIN) {
|
|
244
|
1952 if (ctx->wait == NULL) {
|
|
|
1953 ctx->wait = sr;
|
|
|
1954
|
|
|
1955 } else {
|
|
|
1956 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1957 "only one subrequest may be waited at the same time");
|
|
|
1958 }
|
|
194
|
1959 }
|
|
|
1960
|
|
|
1961 return rc;
|
|
102
|
1962 }
|
|
|
1963
|
|
|
1964
|
|
46
|
1965 static ngx_int_t
|
|
|
1966 ngx_http_ssi_echo(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
|
|
|
1967 ngx_str_t **params)
|
|
|
1968 {
|
|
160
|
1969 ngx_int_t key;
|
|
50
|
1970 ngx_uint_t i;
|
|
48
|
1971 ngx_buf_t *b;
|
|
122
|
1972 ngx_str_t *var, *value, text;
|
|
48
|
1973 ngx_chain_t *cl;
|
|
50
|
1974 ngx_http_variable_value_t *vv;
|
|
46
|
1975
|
|
|
1976 var = params[NGX_HTTP_SSI_ECHO_VAR];
|
|
|
1977
|
|
192
|
1978 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1979 "ssi echo \"%V\"", var);
|
|
|
1980
|
|
160
|
1981 key = 0;
|
|
|
1982
|
|
|
1983 for (i = 0; i < var->len; i++) {
|
|
|
1984 var->data[i] = ngx_tolower(var->data[i]);
|
|
|
1985 key = ngx_hash(key, var->data[i]);
|
|
|
1986 }
|
|
|
1987
|
|
|
1988 value = ngx_http_ssi_get_variable(r, var, key);
|
|
102
|
1989
|
|
|
1990 if (value == NULL) {
|
|
184
|
1991 vv = ngx_http_get_variable(r, var, key, 1);
|
|
102
|
1992
|
|
|
1993 if (vv == NULL) {
|
|
|
1994 return NGX_HTTP_SSI_ERROR;
|
|
|
1995 }
|
|
|
1996
|
|
122
|
1997 if (!vv->not_found) {
|
|
|
1998 text.data = vv->data;
|
|
|
1999 text.len = vv->len;
|
|
|
2000 value = &text;
|
|
102
|
2001 }
|
|
50
|
2002 }
|
|
46
|
2003
|
|
102
|
2004 if (value == NULL) {
|
|
48
|
2005 value = params[NGX_HTTP_SSI_ECHO_DEFAULT];
|
|
|
2006
|
|
|
2007 if (value == NULL) {
|
|
|
2008 value = &ngx_http_ssi_none;
|
|
|
2009
|
|
|
2010 } else if (value->len == 0) {
|
|
|
2011 return NGX_OK;
|
|
|
2012 }
|
|
|
2013
|
|
|
2014 } else {
|
|
|
2015 if (value->len == 0) {
|
|
|
2016 return NGX_OK;
|
|
|
2017 }
|
|
|
2018 }
|
|
|
2019
|
|
|
2020 b = ngx_calloc_buf(r->pool);
|
|
|
2021 if (b == NULL) {
|
|
|
2022 return NGX_HTTP_SSI_ERROR;
|
|
|
2023 }
|
|
|
2024
|
|
|
2025 cl = ngx_alloc_chain_link(r->pool);
|
|
|
2026 if (cl == NULL) {
|
|
46
|
2027 return NGX_HTTP_SSI_ERROR;
|
|
|
2028 }
|
|
|
2029
|
|
|
2030 b->memory = 1;
|
|
|
2031 b->pos = value->data;
|
|
|
2032 b->last = value->data + value->len;
|
|
|
2033
|
|
|
2034 cl->buf = b;
|
|
|
2035 cl->next = NULL;
|
|
|
2036 *ctx->last_out = cl;
|
|
|
2037 ctx->last_out = &cl->next;
|
|
|
2038
|
|
|
2039 return NGX_OK;
|
|
|
2040 }
|
|
|
2041
|
|
|
2042
|
|
58
|
2043 static ngx_int_t
|
|
|
2044 ngx_http_ssi_config(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
|
|
|
2045 ngx_str_t **params)
|
|
|
2046 {
|
|
|
2047 ngx_str_t *value;
|
|
|
2048
|
|
|
2049 value = params[NGX_HTTP_SSI_CONFIG_TIMEFMT];
|
|
|
2050
|
|
|
2051 if (value) {
|
|
138
|
2052 ctx->timefmt.len = value->len;
|
|
|
2053 ctx->timefmt.data = ngx_palloc(r->pool, value->len + 1);
|
|
|
2054 if (ctx->timefmt.data == NULL) {
|
|
|
2055 return NGX_HTTP_SSI_ERROR;
|
|
|
2056 }
|
|
|
2057
|
|
|
2058 ngx_cpystrn(ctx->timefmt.data, value->data, value->len + 1);
|
|
58
|
2059 }
|
|
|
2060
|
|
96
|
2061 value = params[NGX_HTTP_SSI_CONFIG_ERRMSG];
|
|
|
2062
|
|
|
2063 if (value) {
|
|
|
2064 ctx->errmsg = *value;
|
|
|
2065 }
|
|
|
2066
|
|
58
|
2067 return NGX_OK;
|
|
|
2068 }
|
|
|
2069
|
|
|
2070
|
|
|
2071 static ngx_int_t
|
|
102
|
2072 ngx_http_ssi_set(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
|
|
58
|
2073 ngx_str_t **params)
|
|
|
2074 {
|
|
160
|
2075 ngx_int_t key;
|
|
|
2076 ngx_uint_t i;
|
|
102
|
2077 ngx_str_t *name, *value, *vv;
|
|
|
2078 ngx_http_ssi_var_t *var;
|
|
|
2079 ngx_http_ssi_ctx_t *mctx;
|
|
|
2080
|
|
|
2081 mctx = ngx_http_get_module_ctx(r->main, ngx_http_ssi_filter_module);
|
|
|
2082
|
|
216
|
2083 if (mctx->variables == NULL) {
|
|
|
2084 mctx->variables = ngx_array_create(r->pool, 4,
|
|
|
2085 sizeof(ngx_http_ssi_var_t));
|
|
|
2086 if (mctx->variables == NULL) {
|
|
58
|
2087 return NGX_HTTP_SSI_ERROR;
|
|
|
2088 }
|
|
|
2089 }
|
|
|
2090
|
|
102
|
2091 name = params[NGX_HTTP_SSI_SET_VAR];
|
|
|
2092 value = params[NGX_HTTP_SSI_SET_VALUE];
|
|
|
2093
|
|
192
|
2094 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2095 "ssi set \"%V\" \"%V\"", name, value);
|
|
|
2096
|
|
102
|
2097 if (ngx_http_ssi_evaluate_string(r, ctx, value, 0) != NGX_OK) {
|
|
58
|
2098 return NGX_HTTP_SSI_ERROR;
|
|
|
2099 }
|
|
|
2100
|
|
160
|
2101 key = 0;
|
|
|
2102
|
|
|
2103 for (i = 0; i < name->len; i++) {
|
|
|
2104 name->data[i] = ngx_tolower(name->data[i]);
|
|
|
2105 key = ngx_hash(key, name->data[i]);
|
|
|
2106 }
|
|
|
2107
|
|
|
2108 vv = ngx_http_ssi_get_variable(r, name, key);
|
|
102
|
2109
|
|
|
2110 if (vv) {
|
|
|
2111 *vv = *value;
|
|
|
2112 return NGX_OK;
|
|
|
2113 }
|
|
|
2114
|
|
216
|
2115 var = ngx_array_push(mctx->variables);
|
|
102
|
2116 if (var == NULL) {
|
|
|
2117 return NGX_HTTP_SSI_ERROR;
|
|
|
2118 }
|
|
|
2119
|
|
|
2120 var->name = *name;
|
|
160
|
2121 var->key = key;
|
|
102
|
2122 var->value = *value;
|
|
|
2123
|
|
|
2124 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2125 "set: \"%V\"=\"%V\"", name, value);
|
|
|
2126
|
|
58
|
2127 return NGX_OK;
|
|
|
2128 }
|
|
|
2129
|
|
|
2130
|
|
|
2131 static ngx_int_t
|
|
|
2132 ngx_http_ssi_if(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
|
|
|
2133 ngx_str_t **params)
|
|
|
2134 {
|
|
102
|
2135 u_char *p, *last;
|
|
|
2136 ngx_str_t *expr, left, right;
|
|
|
2137 ngx_int_t rc;
|
|
178
|
2138 ngx_uint_t negative, noregex, flags;
|
|
100
|
2139 #if (NGX_PCRE)
|
|
102
|
2140 ngx_str_t err;
|
|
|
2141 ngx_regex_t *regex;
|
|
|
2142 u_char errstr[NGX_MAX_CONF_ERRSTR];
|
|
100
|
2143 #endif
|
|
58
|
2144
|
|
178
|
2145 if (ctx->command.len == 2) {
|
|
|
2146 if (ctx->conditional) {
|
|
|
2147 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
2148 "the \"if\" command inside the \"if\" command");
|
|
|
2149 return NGX_HTTP_SSI_ERROR;
|
|
|
2150 }
|
|
|
2151 }
|
|
|
2152
|
|
|
2153 if (ctx->output_chosen) {
|
|
|
2154 ctx->output = 0;
|
|
|
2155 return NGX_OK;
|
|
|
2156 }
|
|
|
2157
|
|
58
|
2158 expr = params[NGX_HTTP_SSI_IF_EXPR];
|
|
|
2159
|
|
192
|
2160 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2161 "ssi if expr=\"%V\"", expr);
|
|
|
2162
|
|
102
|
2163 left.data = expr->data;
|
|
100
|
2164 last = expr->data + expr->len;
|
|
|
2165
|
|
102
|
2166 for (p = left.data; p < last; p++) {
|
|
100
|
2167 if (*p >= 'A' && *p <= 'Z') {
|
|
|
2168 *p |= 0x20;
|
|
|
2169 continue;
|
|
|
2170 }
|
|
58
|
2171
|
|
102
|
2172 if ((*p >= 'a' && *p <= 'z')
|
|
|
2173 || (*p >= '0' && *p <= '9')
|
|
122
|
2174 || *p == '$' || *p == '{' || *p == '}' || *p == '_'
|
|
|
2175 || *p == '"' || *p == '\'')
|
|
102
|
2176 {
|
|
100
|
2177 continue;
|
|
|
2178 }
|
|
|
2179
|
|
|
2180 break;
|
|
|
2181 }
|
|
|
2182
|
|
102
|
2183 left.len = p - left.data;
|
|
100
|
2184
|
|
|
2185 while (p < last && *p == ' ') {
|
|
|
2186 p++;
|
|
58
|
2187 }
|
|
|
2188
|
|
184
|
2189 flags = (p == last) ? NGX_HTTP_SSI_EXPR_TEST : 0;
|
|
|
2190
|
|
102
|
2191 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2192 "left: \"%V\"", &left);
|
|
|
2193
|
|
184
|
2194 if (ngx_http_ssi_evaluate_string(r, ctx, &left, flags) != NGX_OK) {
|
|
58
|
2195 return NGX_HTTP_SSI_ERROR;
|
|
|
2196 }
|
|
|
2197
|
|
102
|
2198 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2199 "evaluted left: \"%V\"", &left);
|
|
|
2200
|
|
100
|
2201 if (p == last) {
|
|
102
|
2202 if (left.len) {
|
|
100
|
2203 ctx->output = 1;
|
|
178
|
2204 ctx->output_chosen = 1;
|
|
100
|
2205
|
|
|
2206 } else {
|
|
|
2207 ctx->output = 0;
|
|
|
2208 }
|
|
|
2209
|
|
178
|
2210 ctx->conditional = NGX_HTTP_SSI_COND_IF;
|
|
|
2211
|
|
100
|
2212 return NGX_OK;
|
|
|
2213 }
|
|
|
2214
|
|
|
2215 if (p < last && *p == '=') {
|
|
|
2216 negative = 0;
|
|
|
2217 p++;
|
|
|
2218
|
|
|
2219 } else if (p + 1 < last && *p == '!' && *(p + 1) == '=') {
|
|
|
2220 negative = 1;
|
|
|
2221 p += 2;
|
|
|
2222
|
|
|
2223 } else {
|
|
|
2224 goto invalid_expression;
|
|
|
2225 }
|
|
|
2226
|
|
|
2227 while (p < last && *p == ' ') {
|
|
|
2228 p++;
|
|
|
2229 }
|
|
|
2230
|
|
|
2231 if (p < last && *p == '/') {
|
|
|
2232 if (*(last - 1) != '/') {
|
|
|
2233 goto invalid_expression;
|
|
|
2234 }
|
|
|
2235
|
|
|
2236 noregex = 0;
|
|
178
|
2237 flags = NGX_HTTP_SSI_ADD_ZERO;
|
|
100
|
2238 last--;
|
|
|
2239 p++;
|
|
|
2240
|
|
|
2241 } else {
|
|
|
2242 noregex = 1;
|
|
178
|
2243 flags = 0;
|
|
|
2244
|
|
|
2245 if (p < last - 1 && p[0] == '\\' && p[1] == '/') {
|
|
200
|
2246 p++;
|
|
178
|
2247 }
|
|
100
|
2248 }
|
|
|
2249
|
|
|
2250 right.len = last - p;
|
|
|
2251 right.data = p;
|
|
|
2252
|
|
102
|
2253 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2254 "right: \"%V\"", &right);
|
|
|
2255
|
|
178
|
2256 if (ngx_http_ssi_evaluate_string(r, ctx, &right, flags) != NGX_OK) {
|
|
102
|
2257 return NGX_HTTP_SSI_ERROR;
|
|
100
|
2258 }
|
|
|
2259
|
|
102
|
2260 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2261 "evaluted right: \"%V\"", &right);
|
|
100
|
2262
|
|
|
2263 if (noregex) {
|
|
|
2264 if (left.len != right.len) {
|
|
|
2265 rc = -1;
|
|
|
2266
|
|
|
2267 } else {
|
|
|
2268 rc = ngx_strncmp(left.data, right.data, right.len);
|
|
|
2269 }
|
|
|
2270
|
|
|
2271 } else {
|
|
|
2272 #if (NGX_PCRE)
|
|
|
2273 err.len = NGX_MAX_CONF_ERRSTR;
|
|
|
2274 err.data = errstr;
|
|
|
2275
|
|
|
2276 right.data[right.len] = '\0';
|
|
|
2277
|
|
|
2278 regex = ngx_regex_compile(&right, 0, r->pool, &err);
|
|
|
2279
|
|
|
2280 if (regex == NULL) {
|
|
|
2281 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "%s", err.data);
|
|
|
2282 return NGX_HTTP_SSI_ERROR;
|
|
|
2283 }
|
|
|
2284
|
|
|
2285 rc = ngx_regex_exec(regex, &left, NULL, 0);
|
|
|
2286
|
|
|
2287 if (rc != NGX_REGEX_NO_MATCHED && rc < 0) {
|
|
|
2288 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
|
|
|
2289 ngx_regex_exec_n " failed: %d on \"%V\" using \"%V\"",
|
|
|
2290 rc, &left, &right);
|
|
|
2291 return NGX_HTTP_SSI_ERROR;
|
|
|
2292 }
|
|
|
2293 #else
|
|
|
2294 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
|
|
|
2295 "the using of the regex \"%V\" in SSI "
|
|
|
2296 "requires PCRE library", &right);
|
|
|
2297
|
|
|
2298 return NGX_HTTP_SSI_ERROR;
|
|
|
2299 #endif
|
|
|
2300 }
|
|
|
2301
|
|
|
2302 if ((rc == 0 && !negative) || (rc != 0 && negative)) {
|
|
58
|
2303 ctx->output = 1;
|
|
178
|
2304 ctx->output_chosen = 1;
|
|
58
|
2305
|
|
|
2306 } else {
|
|
|
2307 ctx->output = 0;
|
|
|
2308 }
|
|
|
2309
|
|
178
|
2310 ctx->conditional = NGX_HTTP_SSI_COND_IF;
|
|
|
2311
|
|
58
|
2312 return NGX_OK;
|
|
100
|
2313
|
|
|
2314 invalid_expression:
|
|
|
2315
|
|
|
2316 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
2317 "invalid expression in \"%V\"", expr);
|
|
|
2318
|
|
|
2319 return NGX_HTTP_SSI_ERROR;
|
|
58
|
2320 }
|
|
|
2321
|
|
|
2322
|
|
|
2323 static ngx_int_t
|
|
|
2324 ngx_http_ssi_else(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
|
|
|
2325 ngx_str_t **params)
|
|
|
2326 {
|
|
192
|
2327 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2328 "ssi else");
|
|
|
2329
|
|
178
|
2330 if (ctx->output_chosen) {
|
|
|
2331 ctx->output = 0;
|
|
|
2332 } else {
|
|
|
2333 ctx->output = 1;
|
|
|
2334 }
|
|
|
2335
|
|
|
2336 ctx->conditional = NGX_HTTP_SSI_COND_ELSE;
|
|
58
|
2337
|
|
|
2338 return NGX_OK;
|
|
|
2339 }
|
|
|
2340
|
|
|
2341
|
|
|
2342 static ngx_int_t
|
|
|
2343 ngx_http_ssi_endif(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
|
|
|
2344 ngx_str_t **params)
|
|
|
2345 {
|
|
192
|
2346 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2347 "ssi endif");
|
|
|
2348
|
|
58
|
2349 ctx->output = 1;
|
|
178
|
2350 ctx->output_chosen = 0;
|
|
|
2351 ctx->conditional = 0;
|
|
58
|
2352
|
|
|
2353 return NGX_OK;
|
|
|
2354 }
|
|
|
2355
|
|
|
2356
|
|
122
|
2357 static ngx_int_t
|
|
216
|
2358 ngx_http_ssi_block(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
|
|
|
2359 ngx_str_t **params)
|
|
|
2360 {
|
|
|
2361 ngx_http_ssi_ctx_t *mctx;
|
|
|
2362 ngx_http_ssi_block_t *bl;
|
|
|
2363
|
|
|
2364 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2365 "ssi block");
|
|
|
2366
|
|
|
2367 mctx = ngx_http_get_module_ctx(r->main, ngx_http_ssi_filter_module);
|
|
|
2368
|
|
|
2369 if (mctx->blocks == NULL) {
|
|
|
2370 mctx->blocks = ngx_array_create(r->pool, 4,
|
|
|
2371 sizeof(ngx_http_ssi_block_t));
|
|
|
2372 if (mctx->blocks == NULL) {
|
|
|
2373 return NGX_HTTP_SSI_ERROR;
|
|
|
2374 }
|
|
|
2375 }
|
|
|
2376
|
|
|
2377 bl = ngx_array_push(mctx->blocks);
|
|
|
2378 if (bl == NULL) {
|
|
|
2379 return NGX_HTTP_SSI_ERROR;
|
|
|
2380 }
|
|
|
2381
|
|
|
2382 bl->name = *params[NGX_HTTP_SSI_BLOCK_NAME];
|
|
|
2383 bl->bufs = NULL;
|
|
|
2384 bl->count = 0;
|
|
|
2385
|
|
|
2386 ctx->output = 0;
|
|
|
2387 ctx->block = 1;
|
|
|
2388
|
|
|
2389 return NGX_OK;
|
|
|
2390 }
|
|
|
2391
|
|
|
2392
|
|
|
2393 static ngx_int_t
|
|
|
2394 ngx_http_ssi_endblock(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
|
|
|
2395 ngx_str_t **params)
|
|
|
2396 {
|
|
|
2397 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2398 "ssi endblock");
|
|
|
2399
|
|
|
2400 ctx->output = 1;
|
|
|
2401 ctx->block = 0;
|
|
|
2402
|
|
|
2403 return NGX_OK;
|
|
|
2404 }
|
|
|
2405
|
|
|
2406
|
|
|
2407 static ngx_int_t
|
|
122
|
2408 ngx_http_ssi_date_gmt_local_variable(ngx_http_request_t *r,
|
|
|
2409 ngx_http_variable_value_t *v, uintptr_t gmt)
|
|
58
|
2410 {
|
|
122
|
2411 ngx_http_ssi_ctx_t *ctx;
|
|
|
2412 ngx_time_t *tp;
|
|
|
2413 struct tm tm;
|
|
|
2414 char buf[NGX_HTTP_SSI_DATE_LEN];
|
|
|
2415
|
|
126
|
2416 v->valid = 1;
|
|
122
|
2417 v->no_cachable = 0;
|
|
|
2418 v->not_found = 0;
|
|
58
|
2419
|
|
112
|
2420 tp = ngx_timeofday();
|
|
|
2421
|
|
58
|
2422 ctx = ngx_http_get_module_ctx(r, ngx_http_ssi_filter_module);
|
|
|
2423
|
|
|
2424 if (ctx->timefmt.len == sizeof("%s") - 1
|
|
|
2425 && ctx->timefmt.data[0] == '%' && ctx->timefmt.data[1] == 's')
|
|
|
2426 {
|
|
122
|
2427 v->data = ngx_palloc(r->pool, NGX_TIME_T_LEN);
|
|
|
2428 if (v->data == NULL) {
|
|
|
2429 return NGX_ERROR;
|
|
58
|
2430 }
|
|
|
2431
|
|
122
|
2432 v->len = ngx_sprintf(v->data, "%T", tp->sec + (gmt ? 0 : tp->gmtoff))
|
|
|
2433 - v->data;
|
|
206
|
2434
|
|
122
|
2435 return NGX_OK;
|
|
58
|
2436 }
|
|
|
2437
|
|
|
2438 if (gmt) {
|
|
112
|
2439 ngx_libc_gmtime(tp->sec, &tm);
|
|
58
|
2440 } else {
|
|
112
|
2441 ngx_libc_localtime(tp->sec, &tm);
|
|
58
|
2442 }
|
|
|
2443
|
|
122
|
2444 v->len = strftime(buf, NGX_HTTP_SSI_DATE_LEN,
|
|
|
2445 (char *) ctx->timefmt.data, &tm);
|
|
|
2446 if (v->len == 0) {
|
|
|
2447 return NGX_ERROR;
|
|
58
|
2448 }
|
|
|
2449
|
|
122
|
2450 v->data = ngx_palloc(r->pool, v->len);
|
|
|
2451 if (v->data == NULL) {
|
|
|
2452 return NGX_ERROR;
|
|
58
|
2453 }
|
|
|
2454
|
|
122
|
2455 ngx_memcpy(v->data, buf, v->len);
|
|
|
2456
|
|
|
2457 return NGX_OK;
|
|
58
|
2458 }
|
|
|
2459
|
|
|
2460
|
|
76
|
2461 static char *
|
|
|
2462 ngx_http_ssi_types(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
2463 {
|
|
146
|
2464 ngx_http_ssi_loc_conf_t *slcf = conf;
|
|
76
|
2465
|
|
|
2466 ngx_str_t *value, *type;
|
|
|
2467 ngx_uint_t i;
|
|
|
2468
|
|
146
|
2469 if (slcf->types == NULL) {
|
|
|
2470 slcf->types = ngx_array_create(cf->pool, 4, sizeof(ngx_str_t));
|
|
|
2471 if (slcf->types == NULL) {
|
|
76
|
2472 return NGX_CONF_ERROR;
|
|
|
2473 }
|
|
|
2474
|
|
146
|
2475 type = ngx_array_push(slcf->types);
|
|
76
|
2476 if (type == NULL) {
|
|
|
2477 return NGX_CONF_ERROR;
|
|
|
2478 }
|
|
|
2479
|
|
|
2480 type->len = sizeof("text/html") - 1;
|
|
|
2481 type->data = (u_char *) "text/html";
|
|
|
2482 }
|
|
|
2483
|
|
|
2484 value = cf->args->elts;
|
|
|
2485
|
|
|
2486 for (i = 1; i < cf->args->nelts; i++) {
|
|
|
2487
|
|
|
2488 if (ngx_strcmp(value[i].data, "text/html") == 0) {
|
|
|
2489 continue;
|
|
|
2490 }
|
|
|
2491
|
|
146
|
2492 type = ngx_array_push(slcf->types);
|
|
76
|
2493 if (type == NULL) {
|
|
|
2494 return NGX_CONF_ERROR;
|
|
|
2495 }
|
|
|
2496
|
|
|
2497 type->len = value[i].len;
|
|
|
2498
|
|
|
2499 type->data = ngx_palloc(cf->pool, type->len + 1);
|
|
|
2500 if (type->data == NULL) {
|
|
|
2501 return NGX_CONF_ERROR;
|
|
|
2502 }
|
|
|
2503
|
|
|
2504 ngx_cpystrn(type->data, value[i].data, type->len + 1);
|
|
|
2505 }
|
|
|
2506
|
|
|
2507 return NGX_CONF_OK;
|
|
|
2508 }
|
|
|
2509
|
|
|
2510
|
|
58
|
2511 static ngx_int_t
|
|
146
|
2512 ngx_http_ssi_preconfiguration(ngx_conf_t *cf)
|
|
58
|
2513 {
|
|
146
|
2514 ngx_int_t rc;
|
|
|
2515 ngx_http_variable_t *var, *v;
|
|
|
2516 ngx_http_ssi_command_t *cmd;
|
|
|
2517 ngx_http_ssi_main_conf_t *smcf;
|
|
58
|
2518
|
|
|
2519 for (v = ngx_http_ssi_vars; v->name.len; v++) {
|
|
|
2520 var = ngx_http_add_variable(cf, &v->name, v->flags);
|
|
|
2521 if (var == NULL) {
|
|
|
2522 return NGX_ERROR;
|
|
|
2523 }
|
|
|
2524
|
|
186
|
2525 var->get_handler = v->get_handler;
|
|
58
|
2526 var->data = v->data;
|
|
|
2527 }
|
|
|
2528
|
|
146
|
2529 smcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_ssi_filter_module);
|
|
|
2530
|
|
|
2531 for (cmd = ngx_http_ssi_commands; cmd->name.len; cmd++) {
|
|
|
2532 rc = ngx_hash_add_key(&smcf->commands, &cmd->name, cmd,
|
|
|
2533 NGX_HASH_READONLY_KEY);
|
|
|
2534
|
|
|
2535 if (rc == NGX_OK) {
|
|
|
2536 continue;
|
|
|
2537 }
|
|
|
2538
|
|
|
2539 if (rc == NGX_BUSY) {
|
|
|
2540 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
2541 "conflicting SSI command \"%V\"", &cmd->name);
|
|
|
2542 }
|
|
|
2543
|
|
|
2544 return NGX_ERROR;
|
|
|
2545 }
|
|
|
2546
|
|
126
|
2547 return NGX_OK;
|
|
58
|
2548 }
|
|
|
2549
|
|
|
2550
|
|
46
|
2551 static void *
|
|
146
|
2552 ngx_http_ssi_create_main_conf(ngx_conf_t *cf)
|
|
|
2553 {
|
|
|
2554 ngx_http_ssi_main_conf_t *smcf;
|
|
|
2555
|
|
|
2556 smcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_ssi_main_conf_t));
|
|
|
2557 if (smcf == NULL) {
|
|
|
2558 return NGX_CONF_ERROR;
|
|
|
2559 }
|
|
|
2560
|
|
|
2561 smcf->commands.pool = cf->pool;
|
|
|
2562 smcf->commands.temp_pool = cf->temp_pool;
|
|
|
2563
|
|
|
2564 if (ngx_hash_keys_array_init(&smcf->commands, NGX_HASH_SMALL) != NGX_OK) {
|
|
|
2565 return NGX_CONF_ERROR;
|
|
|
2566 }
|
|
|
2567
|
|
|
2568 return smcf;
|
|
|
2569 }
|
|
|
2570
|
|
|
2571
|
|
|
2572 static char *
|
|
|
2573 ngx_http_ssi_init_main_conf(ngx_conf_t *cf, void *conf)
|
|
|
2574 {
|
|
|
2575 ngx_http_ssi_main_conf_t *smcf = conf;
|
|
|
2576
|
|
|
2577 ngx_hash_init_t hash;
|
|
|
2578
|
|
|
2579 hash.hash = &smcf->hash;
|
|
|
2580 hash.key = ngx_hash_key;
|
|
|
2581 hash.max_size = 1024;
|
|
|
2582 hash.bucket_size = ngx_cacheline_size;
|
|
|
2583 hash.name = "ssi_command_hash";
|
|
|
2584 hash.pool = cf->pool;
|
|
|
2585 hash.temp_pool = NULL;
|
|
|
2586
|
|
|
2587 if (ngx_hash_init(&hash, smcf->commands.keys.elts,
|
|
|
2588 smcf->commands.keys.nelts)
|
|
|
2589 != NGX_OK)
|
|
|
2590 {
|
|
|
2591 return NGX_CONF_ERROR;
|
|
|
2592 }
|
|
|
2593
|
|
|
2594 return NGX_CONF_OK;
|
|
|
2595 }
|
|
|
2596
|
|
|
2597
|
|
|
2598 static void *
|
|
46
|
2599 ngx_http_ssi_create_conf(ngx_conf_t *cf)
|
|
|
2600 {
|
|
146
|
2601 ngx_http_ssi_loc_conf_t *slcf;
|
|
|
2602
|
|
|
2603 slcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_ssi_loc_conf_t));
|
|
|
2604 if (slcf == NULL) {
|
|
46
|
2605 return NGX_CONF_ERROR;
|
|
|
2606 }
|
|
|
2607
|
|
76
|
2608 /*
|
|
|
2609 * set by ngx_pcalloc():
|
|
|
2610 *
|
|
|
2611 * conf->types = NULL;
|
|
|
2612 */
|
|
|
2613
|
|
146
|
2614 slcf->enable = NGX_CONF_UNSET;
|
|
|
2615 slcf->silent_errors = NGX_CONF_UNSET;
|
|
|
2616 slcf->ignore_recycled_buffers = NGX_CONF_UNSET;
|
|
|
2617
|
|
|
2618 slcf->min_file_chunk = NGX_CONF_UNSET_SIZE;
|
|
|
2619 slcf->value_len = NGX_CONF_UNSET_SIZE;
|
|
|
2620
|
|
|
2621 return slcf;
|
|
46
|
2622 }
|
|
|
2623
|
|
|
2624
|
|
|
2625 static char *
|
|
|
2626 ngx_http_ssi_merge_conf(ngx_conf_t *cf, void *parent, void *child)
|
|
|
2627 {
|
|
146
|
2628 ngx_http_ssi_loc_conf_t *prev = parent;
|
|
|
2629 ngx_http_ssi_loc_conf_t *conf = child;
|
|
46
|
2630
|
|
76
|
2631 ngx_str_t *type;
|
|
|
2632
|
|
46
|
2633 ngx_conf_merge_value(conf->enable, prev->enable, 0);
|
|
|
2634 ngx_conf_merge_value(conf->silent_errors, prev->silent_errors, 0);
|
|
58
|
2635 ngx_conf_merge_value(conf->ignore_recycled_buffers,
|
|
|
2636 prev->ignore_recycled_buffers, 0);
|
|
46
|
2637
|
|
|
2638 ngx_conf_merge_size_value(conf->min_file_chunk, prev->min_file_chunk, 1024);
|
|
|
2639 ngx_conf_merge_size_value(conf->value_len, prev->value_len, 256);
|
|
|
2640
|
|
76
|
2641 if (conf->types == NULL) {
|
|
|
2642 if (prev->types == NULL) {
|
|
|
2643 conf->types = ngx_array_create(cf->pool, 1, sizeof(ngx_str_t));
|
|
|
2644 if (conf->types == NULL) {
|
|
|
2645 return NGX_CONF_ERROR;
|
|
|
2646 }
|
|
|
2647
|
|
|
2648 type = ngx_array_push(conf->types);
|
|
|
2649 if (type == NULL) {
|
|
|
2650 return NGX_CONF_ERROR;
|
|
|
2651 }
|
|
|
2652
|
|
|
2653 type->len = sizeof("text/html") - 1;
|
|
|
2654 type->data = (u_char *) "text/html";
|
|
|
2655
|
|
|
2656 } else {
|
|
|
2657 conf->types = prev->types;
|
|
|
2658 }
|
|
|
2659 }
|
|
|
2660
|
|
46
|
2661 return NGX_CONF_OK;
|
|
|
2662 }
|
|
|
2663
|
|
|
2664
|
|
|
2665 static ngx_int_t
|
|
230
|
2666 ngx_http_ssi_filter_init(ngx_conf_t *cf)
|
|
46
|
2667 {
|
|
|
2668 ngx_http_next_header_filter = ngx_http_top_header_filter;
|
|
|
2669 ngx_http_top_header_filter = ngx_http_ssi_header_filter;
|
|
|
2670
|
|
|
2671 ngx_http_next_body_filter = ngx_http_top_body_filter;
|
|
|
2672 ngx_http_top_body_filter = ngx_http_ssi_body_filter;
|
|
|
2673
|
|
|
2674 return NGX_OK;
|
|
|
2675 }
|
