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