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56
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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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11
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58
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12 #define ngx_http_script_exit (u_char *) &ngx_http_script_exit_code
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13
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14 static uintptr_t ngx_http_script_exit_code = (uintptr_t) NULL;
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15
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16
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17 ngx_uint_t
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18 ngx_http_script_variables_count(ngx_str_t *value)
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56
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19 {
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58
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20 ngx_uint_t i, n;
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56
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21
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58
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22 for (n = 0, i = 0; i < value->len; i++) {
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23 if (value->data[i] == '$') {
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24 n++;
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25 }
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56
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26 }
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27
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58
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28 return n;
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29 }
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30
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31
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32 ngx_int_t
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33 ngx_http_script_compile(ngx_http_script_compile_t *sc)
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34 {
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35 u_char ch;
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36 size_t size;
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37 ngx_int_t index;
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38 ngx_str_t name;
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39 uintptr_t *code;
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40 ngx_uint_t i, n, bracket;
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41 ngx_http_script_var_code_t *var_code;
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42 ngx_http_script_copy_code_t *copy;
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43 ngx_http_script_copy_capture_code_t *copy_capture;
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44
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45 if (*sc->lengths == NULL) {
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46 n = sc->variables * (2 * sizeof(ngx_http_script_copy_code_t)
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47 + sizeof(ngx_http_script_var_code_t))
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48 + sizeof(uintptr_t);
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49
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50 *sc->lengths = ngx_array_create(sc->cf->pool, n, 1);
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51 if (*sc->lengths == NULL) {
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52 return NGX_ERROR;
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53 }
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54 }
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55
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56
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57 if (*sc->values == NULL) {
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58 n = (sc->variables * (2 * sizeof(ngx_http_script_copy_code_t)
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59 + sizeof(ngx_http_script_var_code_t))
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60 + sizeof(uintptr_t)
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61 + sc->source->len
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62 + sizeof(uintptr_t) - 1)
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63 & ~(sizeof(uintptr_t) - 1);
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64
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65 *sc->values = ngx_array_create(sc->cf->pool, n, 1);
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66 if (*sc->values == NULL) {
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56
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67 return NGX_ERROR;
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68 }
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69 }
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70
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58
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71 sc->variables = 0;
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72
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73 for (i = 0; i < sc->source->len; /* void */ ) {
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74
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75 name.len = 0;
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76
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77 if (sc->source->data[i] == '$') {
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78
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79 if (++i == sc->source->len) {
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80 goto invalid_variable;
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81 }
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82
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83 if (sc->source->data[i] >= '1' && sc->source->data[i] <= '9') {
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84
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85 copy_capture = ngx_http_script_add_code(*sc->lengths,
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86 sizeof(ngx_http_script_copy_capture_code_t),
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87 NULL);
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88 if (copy_capture == NULL) {
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89 return NGX_ERROR;
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90 }
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91
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92 copy_capture->code = (ngx_http_script_code_pt)
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93 ngx_http_script_copy_capture_len_code;
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94 copy_capture->n = 2 * (sc->source->data[i] - '0');
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95
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96 copy_capture = ngx_http_script_add_code(*sc->values,
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97 sizeof(ngx_http_script_copy_capture_code_t),
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98 &sc->main);
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99 if (copy_capture == NULL) {
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100 return NGX_ERROR;
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101 }
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102
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103 copy_capture->code = ngx_http_script_copy_capture_code;
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104 copy_capture->n = sc->source->data[i] - '0';
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105
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106 if (sc->ncaptures < copy_capture->n) {
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107 sc->ncaptures = copy_capture->n;
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108 }
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109
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110 copy_capture->n *= 2;
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56
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111
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58
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112 i++;
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113
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114 continue;
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115 }
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116
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117 if (sc->source->data[i] == '{') {
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118 bracket = 1;
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119
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120 if (++i == sc->source->len) {
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121 goto invalid_variable;
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122 }
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123
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124 name.data = &sc->source->data[i];
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125
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126 } else {
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127 bracket = 0;
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128 name.data = &sc->source->data[i];
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129 }
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130
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131 for ( /* void */ ; i < sc->source->len; i++, name.len++) {
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132 ch = sc->source->data[i];
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56
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133
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58
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134 if (ch == '}' && bracket) {
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135 i++;
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136 bracket = 0;
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137 break;
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138 }
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139
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140 if ((ch >= 'A' && ch <= 'Z')
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141 || (ch >= 'a' && ch <= 'z')
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142 || (ch >= '0' && ch <= '9')
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143 || ch == '_')
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144 {
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145 continue;
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146 }
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147
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148 break;
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149 }
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150
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151 if (bracket) {
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152 ngx_conf_log_error(NGX_LOG_EMERG, sc->cf, 0,
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153 "the closing bracket in \"%V\" "
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154 "variable is missing", &name);
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56
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155 return NGX_ERROR;
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156 }
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157
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58
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158 if (name.len == 0) {
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159 goto invalid_variable;
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160 }
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56
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161
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58
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162 sc->variables++;
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56
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163
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58
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164 index = ngx_http_get_variable_index(sc->cf, &name);
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165
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166 if (index == NGX_ERROR) {
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56
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167 return NGX_ERROR;
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168 }
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169
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58
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170 var_code = ngx_http_script_add_code(*sc->lengths,
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171 sizeof(ngx_http_script_var_code_t),
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172 NULL);
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56
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173 if (var_code == NULL) {
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174 return NGX_ERROR;
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175 }
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176
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177 var_code->code = (ngx_http_script_code_pt)
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58
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178 ngx_http_script_copy_var_len_code;
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179 var_code->index = (uintptr_t) index;
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56
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180
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181
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58
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182 var_code = ngx_http_script_add_code(*sc->values,
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183 sizeof(ngx_http_script_var_code_t),
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184 &sc->main);
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56
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185 if (var_code == NULL) {
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186 return NGX_ERROR;
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187 }
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188
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58
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189 var_code->code = ngx_http_script_copy_var_code;
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190 var_code->index = (uintptr_t) index;
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191
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192 continue;
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193 }
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194
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58
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195 if (sc->source->data[i] == '?' && sc->compile_args) {
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196 sc->args = 1;
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197 sc->compile_args = 0;
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198
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58
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199 code = ngx_http_script_add_code(*sc->values, sizeof(uintptr_t),
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200 &sc->main);
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201 if (code == NULL) {
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56
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202 return NGX_ERROR;
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203 }
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204
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58
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205 *code = (uintptr_t) ngx_http_script_start_args_code;
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206
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207 i++;
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208
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56
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209 continue;
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210 }
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211
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58
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212 name.data = &sc->source->data[i];
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213
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214 while (i < sc->source->len
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215 && sc->source->data[i] != '$'
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216 && !(sc->source->data[i] == '?' && sc->compile_args))
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217 {
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218 i++;
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219 name.len++;
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220 }
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221
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222 sc->size += name.len;
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223
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224 copy = ngx_http_script_add_code(*sc->lengths,
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225 sizeof(ngx_http_script_copy_code_t),
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226 NULL);
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227 if (copy == NULL) {
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56
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228 return NGX_ERROR;
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229 }
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58
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230
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231 copy->code = (ngx_http_script_code_pt) ngx_http_script_copy_len_code;
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232 copy->len = name.len;
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233
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234 size = (sizeof(ngx_http_script_copy_code_t) + name.len
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235 + sizeof(uintptr_t) - 1)
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236 & ~(sizeof(uintptr_t) - 1);
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56
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237
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58
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238 copy = ngx_http_script_add_code(*sc->values, size, &sc->main);
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239 if (copy == NULL) {
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240 return NGX_ERROR;
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241 }
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242
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243 copy->code = ngx_http_script_copy_code;
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244 copy->len = name.len;
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245
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246 ngx_memcpy((u_char *) copy + sizeof(ngx_http_script_copy_code_t),
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247 name.data, name.len);
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56
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248 }
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249
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58
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250 if (sc->complete_lengths) {
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251 code = ngx_http_script_add_code(*sc->lengths, sizeof(uintptr_t), NULL);
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252 if (code == NULL) {
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253 return NGX_ERROR;
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254 }
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56
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255
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58
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256 *code = (uintptr_t) NULL;
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56
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257 }
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258
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58
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259 if (sc->complete_values) {
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260 code = ngx_http_script_add_code(*sc->values, sizeof(uintptr_t),
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261 &sc->main);
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262 if (code == NULL) {
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263 return NGX_ERROR;
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264 }
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265
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266 *code = (uintptr_t) NULL;
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267 }
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56
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268
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269 return NGX_OK;
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58
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270
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271 invalid_variable:
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272
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273 ngx_conf_log_error(NGX_LOG_EMERG, sc->cf, 0, "invalid variable name");
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274
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275 return NGX_ERROR;
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56
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276 }
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277
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278
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58
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279 void *
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56
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280 ngx_http_script_start_code(ngx_pool_t *pool, ngx_array_t **codes, size_t size)
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281 {
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282 if (*codes == NULL) {
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283 *codes = ngx_array_create(pool, 256, 1);
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284 if (*codes == NULL) {
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285 return NULL;
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286 }
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287 }
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288
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289 return ngx_array_push_n(*codes, size);
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290 }
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291
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58
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292
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293 void *
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294 ngx_http_script_add_code(ngx_array_t *codes, size_t size, void *code)
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295 {
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296 u_char *elts, **p;
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297 void *new;
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298
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299 elts = codes->elts;
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300
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301 new = ngx_array_push_n(codes, size);
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302 if (new == NULL) {
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303 return NGX_CONF_ERROR;
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304 }
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305
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306 if (code) {
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307 if (elts != codes->elts) {
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308 p = code;
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309 *p += (u_char *) codes->elts - elts;
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310 }
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311 }
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312
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313 return new;
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314 }
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56
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315
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316
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317 size_t
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58
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318 ngx_http_script_copy_len_code(ngx_http_script_engine_t *e)
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56
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319 {
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320 ngx_http_script_copy_code_t *code;
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321
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58
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322 code = (ngx_http_script_copy_code_t *) e->ip;
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56
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323
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58
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324 e->ip += sizeof(ngx_http_script_copy_code_t);
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56
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325
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326 return code->len;
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327 }
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328
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329
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330 void
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58
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331 ngx_http_script_copy_code(ngx_http_script_engine_t *e)
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56
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332 {
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333 ngx_http_script_copy_code_t *code;
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334
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58
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335 code = (ngx_http_script_copy_code_t *) e->ip;
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336
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337 if (!e->skip) {
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338 e->pos = ngx_cpymem(e->pos, e->ip + sizeof(ngx_http_script_copy_code_t),
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339 code->len);
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340 }
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56
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341
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58
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342 e->ip += sizeof(ngx_http_script_copy_code_t)
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343 + ((code->len + sizeof(uintptr_t) - 1) & ~(sizeof(uintptr_t) - 1));
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56
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344
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58
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345 if (e->log) {
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346 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
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347 "http script copy: \"%V\"", &e->buf);
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348 }
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56
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349 }
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350
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351
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352 size_t
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58
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353 ngx_http_script_copy_var_len_code(ngx_http_script_engine_t *e)
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56
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354 {
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355 ngx_http_variable_value_t *value;
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356 ngx_http_script_var_code_t *code;
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357
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58
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358 code = (ngx_http_script_var_code_t *) e->ip;
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56
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359
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58
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360 e->ip += sizeof(ngx_http_script_var_code_t);
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56
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361
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58
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362 value = ngx_http_get_indexed_variable(e->request, code->index);
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56
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363
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58
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364 if (value == NULL || value == NGX_HTTP_VAR_NOT_FOUND) {
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56
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365 return 0;
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366 }
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367
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368 return value->text.len;
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369 }
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370
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371
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372 void
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58
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373 ngx_http_script_copy_var_code(ngx_http_script_engine_t *e)
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56
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374 {
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375 ngx_http_variable_value_t *value;
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376 ngx_http_script_var_code_t *code;
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377
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58
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378 code = (ngx_http_script_var_code_t *) e->ip;
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379
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380 e->ip += sizeof(ngx_http_script_var_code_t);
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381
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382 if (!e->skip) {
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383 value = ngx_http_get_indexed_variable(e->request, code->index);
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384
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385 if (value == NULL || value == NGX_HTTP_VAR_NOT_FOUND) {
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386 return;
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387 }
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388
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389 e->pos = ngx_cpymem(e->pos, value->text.data, value->text.len);
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390
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391 if (e->log) {
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392 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
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393 "http script var: \"%V\"", &e->buf);
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394 }
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395 }
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396 }
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397
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398
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399 size_t
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400 ngx_http_script_copy_capture_len_code(ngx_http_script_engine_t *e)
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401 {
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402 ngx_http_script_copy_capture_code_t *code;
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403
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404 code = (ngx_http_script_copy_capture_code_t *) e->ip;
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405
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406 e->ip += sizeof(ngx_http_script_copy_capture_code_t);
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407
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64
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408 if (code->n < e->ncaptures) {
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409 if ((e->args || e->quote)
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410 && (e->request->quoted_uri || e->request->plus_in_uri))
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411 {
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412 return e->captures[code->n + 1] - e->captures[code->n]
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413 + ngx_escape_uri(NULL,
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414 &e->line.data[e->captures[code->n]],
|
|
58
|
415 e->captures[code->n + 1] - e->captures[code->n],
|
|
|
416 NGX_ESCAPE_ARGS);
|
|
64
|
417 } else {
|
|
|
418 return e->captures[code->n + 1] - e->captures[code->n];
|
|
|
419 }
|
|
58
|
420 }
|
|
64
|
421
|
|
|
422 return 0;
|
|
58
|
423 }
|
|
|
424
|
|
|
425
|
|
|
426 void
|
|
|
427 ngx_http_script_copy_capture_code(ngx_http_script_engine_t *e)
|
|
|
428 {
|
|
|
429 ngx_http_script_copy_capture_code_t *code;
|
|
|
430
|
|
|
431 code = (ngx_http_script_copy_capture_code_t *) e->ip;
|
|
|
432
|
|
|
433 e->ip += sizeof(ngx_http_script_copy_capture_code_t);
|
|
56
|
434
|
|
64
|
435 if (code->n < e->ncaptures) {
|
|
|
436 if ((e->args || e->quote)
|
|
|
437 && (e->request->quoted_uri || e->request->plus_in_uri))
|
|
|
438 {
|
|
|
439 e->pos = (u_char *) ngx_escape_uri(e->pos,
|
|
|
440 &e->line.data[e->captures[code->n]],
|
|
58
|
441 e->captures[code->n + 1] - e->captures[code->n],
|
|
|
442 NGX_ESCAPE_ARGS);
|
|
64
|
443 } else {
|
|
|
444 e->pos = ngx_cpymem(e->pos,
|
|
|
445 &e->line.data[e->captures[code->n]],
|
|
|
446 e->captures[code->n + 1] - e->captures[code->n]);
|
|
|
447 }
|
|
58
|
448 }
|
|
|
449
|
|
|
450 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
451 "http script capture: \"%V\"", &e->buf);
|
|
|
452 }
|
|
|
453
|
|
|
454
|
|
|
455 void
|
|
|
456 ngx_http_script_start_args_code(ngx_http_script_engine_t *e)
|
|
|
457 {
|
|
|
458 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
459 "http script args");
|
|
|
460
|
|
|
461 e->args = e->pos;
|
|
|
462 e->ip += sizeof(uintptr_t);
|
|
|
463 }
|
|
|
464
|
|
|
465
|
|
|
466 void
|
|
|
467 ngx_http_script_regex_start_code(ngx_http_script_engine_t *e)
|
|
|
468 {
|
|
|
469 size_t len;
|
|
|
470 ngx_int_t rc;
|
|
|
471 ngx_uint_t n;
|
|
|
472 ngx_http_request_t *r;
|
|
|
473 ngx_http_script_engine_t le;
|
|
|
474 ngx_http_script_len_code_pt lcode;
|
|
|
475 ngx_http_script_regex_code_t *code;
|
|
|
476
|
|
|
477 code = (ngx_http_script_regex_code_t *) e->ip;
|
|
|
478
|
|
|
479 r = e->request;
|
|
|
480
|
|
|
481 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
482 "http script regex: \"%V\"", &code->name);
|
|
|
483
|
|
|
484 if (code->uri) {
|
|
64
|
485 e->line = r->uri;
|
|
58
|
486 } else {
|
|
|
487 e->sp--;
|
|
64
|
488 e->line = e->sp->text;
|
|
58
|
489 }
|
|
56
|
490
|
|
64
|
491 rc = ngx_regex_exec(code->regex, &e->line, e->captures, code->ncaptures);
|
|
58
|
492
|
|
|
493 if (rc == NGX_REGEX_NO_MATCHED) {
|
|
|
494 if (e->log) {
|
|
|
495 ngx_log_error(NGX_LOG_NOTICE, r->connection->log, 0,
|
|
64
|
496 "\"%V\" does not match \"%V\"",
|
|
|
497 &code->name, &e->line);
|
|
58
|
498 }
|
|
|
499
|
|
64
|
500 e->ncaptures = 0;
|
|
|
501
|
|
58
|
502 if (code->test) {
|
|
|
503 e->sp->value = 0;
|
|
|
504 e->sp->text.len = 0;
|
|
|
505 e->sp->text.data = (u_char *) "";
|
|
|
506 e->sp++;
|
|
|
507
|
|
|
508 e->ip += sizeof(ngx_http_script_regex_code_t);
|
|
|
509 return;
|
|
|
510 }
|
|
|
511
|
|
|
512 e->ip += code->next;
|
|
|
513 return;
|
|
|
514 }
|
|
|
515
|
|
|
516 if (rc < 0) {
|
|
|
517 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
|
|
|
518 ngx_regex_exec_n " failed: %d on \"%V\" using \"%V\"",
|
|
64
|
519 rc, &e->line, &code->name);
|
|
58
|
520
|
|
|
521 e->ip = ngx_http_script_exit;
|
|
|
522 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
523 return;
|
|
|
524 }
|
|
|
525
|
|
|
526 if (e->log) {
|
|
|
527 ngx_log_error(NGX_LOG_NOTICE, r->connection->log, 0,
|
|
64
|
528 "\"%V\" matches \"%V\"", &code->name, &e->line);
|
|
58
|
529 }
|
|
|
530
|
|
64
|
531 e->ncaptures = code->ncaptures;
|
|
|
532
|
|
58
|
533 if (code->test) {
|
|
|
534 e->sp->value = 1;
|
|
|
535 e->sp->text.len = 1;
|
|
|
536 e->sp->text.data = (u_char *) "1";
|
|
|
537 e->sp++;
|
|
|
538
|
|
|
539 e->ip += sizeof(ngx_http_script_regex_code_t);
|
|
|
540 return;
|
|
|
541 }
|
|
|
542
|
|
|
543 if (code->status) {
|
|
|
544 e->status = code->status;
|
|
56
|
545
|
|
58
|
546 if (!code->redirect) {
|
|
|
547 e->ip = ngx_http_script_exit;
|
|
|
548 return;
|
|
|
549 }
|
|
|
550 }
|
|
|
551
|
|
|
552 if (code->uri) {
|
|
|
553 r->internal = 1;
|
|
|
554 r->valid_unparsed_uri = 0;
|
|
|
555
|
|
|
556 if (code->break_cycle) {
|
|
|
557 r->valid_location = 0;
|
|
|
558
|
|
|
559 } else {
|
|
|
560 r->uri_changed = 1;
|
|
|
561 }
|
|
|
562 }
|
|
|
563
|
|
|
564 if (code->lengths == NULL) {
|
|
|
565 e->buf.len = code->size;
|
|
|
566
|
|
|
567 if (code->uri) {
|
|
|
568 if (rc && (r->quoted_uri || r->plus_in_uri)) {
|
|
|
569 e->buf.len += 2 * ngx_escape_uri(NULL, r->uri.data, r->uri.len,
|
|
|
570 NGX_ESCAPE_ARGS);
|
|
|
571 }
|
|
|
572 }
|
|
|
573
|
|
|
574 for (n = 1; n < (ngx_uint_t) rc; n++) {
|
|
|
575 e->buf.len += e->captures[2 * n + 1] - e->captures[2 * n];
|
|
|
576 }
|
|
|
577
|
|
|
578 } else {
|
|
|
579 ngx_memzero(&le, sizeof(ngx_http_script_engine_t));
|
|
|
580
|
|
|
581 le.ip = code->lengths->elts;
|
|
|
582 le.request = r;
|
|
|
583 le.captures = e->captures;
|
|
64
|
584 le.ncaptures = e->ncaptures;
|
|
58
|
585
|
|
|
586 len = 1; /* reserve 1 byte for possible "?" */
|
|
|
587
|
|
|
588 while (*(uintptr_t *) le.ip) {
|
|
|
589 lcode = *(ngx_http_script_len_code_pt *) le.ip;
|
|
|
590 len += lcode(&le);
|
|
|
591 }
|
|
|
592
|
|
|
593 e->buf.len = len;
|
|
|
594 }
|
|
|
595
|
|
64
|
596 if (code->add_args && r->args.len) {
|
|
58
|
597 e->buf.len += r->args.len + 1;
|
|
|
598 }
|
|
|
599
|
|
|
600 e->buf.data = ngx_palloc(r->pool, e->buf.len);
|
|
|
601 if (e->buf.data == NULL) {
|
|
|
602 e->ip = ngx_http_script_exit;
|
|
|
603 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
56
|
604 return;
|
|
|
605 }
|
|
|
606
|
|
58
|
607 e->quote = code->redirect;
|
|
|
608
|
|
|
609 e->pos = e->buf.data;
|
|
|
610
|
|
|
611 e->ip += sizeof(ngx_http_script_regex_code_t);
|
|
|
612 }
|
|
|
613
|
|
|
614
|
|
|
615 void
|
|
|
616 ngx_http_script_regex_end_code(ngx_http_script_engine_t *e)
|
|
|
617 {
|
|
|
618 ngx_http_request_t *r;
|
|
|
619 ngx_http_script_regex_end_code_t *code;
|
|
|
620
|
|
|
621 code = (ngx_http_script_regex_end_code_t *) e->ip;
|
|
|
622
|
|
|
623 r = e->request;
|
|
|
624
|
|
|
625 e->quote = 0;
|
|
|
626
|
|
|
627 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
628 "http script regex end");
|
|
|
629
|
|
|
630 if (code->redirect) {
|
|
|
631
|
|
|
632 if (code->add_args && r->args.len) {
|
|
|
633 *e->pos++ = (u_char) (code->args ? '&' : '?');
|
|
|
634 e->pos = ngx_cpymem(e->pos, r->args.data, r->args.len);
|
|
|
635 }
|
|
|
636
|
|
|
637 e->buf.len = e->pos - e->buf.data;
|
|
|
638
|
|
|
639 if (e->log) {
|
|
|
640 ngx_log_error(NGX_LOG_NOTICE, r->connection->log, 0,
|
|
|
641 "rewritten redirect: \"%V\"", &e->buf);
|
|
|
642 }
|
|
|
643
|
|
|
644 r->headers_out.location = ngx_list_push(&r->headers_out.headers);
|
|
|
645 if (r->headers_out.location == NULL) {
|
|
|
646 e->ip = ngx_http_script_exit;
|
|
|
647 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
648 return;
|
|
|
649 }
|
|
|
650
|
|
|
651 r->headers_out.location->hash = 1;
|
|
|
652 r->headers_out.location->key.len = sizeof("Location") - 1;
|
|
|
653 r->headers_out.location->key.data = (u_char *) "Location";
|
|
|
654 r->headers_out.location->value = e->buf;
|
|
|
655
|
|
|
656 e->ip += sizeof(ngx_http_script_regex_end_code_t);
|
|
|
657 return;
|
|
|
658 }
|
|
|
659
|
|
|
660 if (e->args) {
|
|
|
661 e->buf.len = e->args - e->buf.data;
|
|
|
662
|
|
|
663 if (code->add_args && r->args.len) {
|
|
|
664 *e->pos++ = '&';
|
|
|
665 e->pos = ngx_cpymem(e->pos, r->args.data, r->args.len);
|
|
|
666 }
|
|
|
667
|
|
|
668 r->args.len = e->pos - e->args;
|
|
|
669 r->args.data = e->args;
|
|
|
670
|
|
|
671 e->args = NULL;
|
|
|
672
|
|
|
673 } else {
|
|
|
674 e->buf.len = e->pos - e->buf.data;
|
|
|
675 }
|
|
|
676
|
|
|
677 if (e->log) {
|
|
|
678 ngx_log_error(NGX_LOG_NOTICE, r->connection->log, 0,
|
|
|
679 "rewritten data: \"%V\", args: \"%V\"",
|
|
|
680 &e->buf, &r->args);
|
|
|
681 }
|
|
|
682
|
|
|
683 if (code->uri) {
|
|
|
684 r->uri = e->buf;
|
|
|
685
|
|
|
686 if (ngx_http_set_exten(r) != NGX_OK) {
|
|
|
687 e->ip = ngx_http_script_exit;
|
|
|
688 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
689 return;
|
|
|
690 }
|
|
|
691 }
|
|
|
692
|
|
|
693 e->ip += sizeof(ngx_http_script_regex_end_code_t);
|
|
|
694 }
|
|
|
695
|
|
|
696
|
|
|
697 void
|
|
|
698 ngx_http_script_return_code(ngx_http_script_engine_t *e)
|
|
|
699 {
|
|
|
700 ngx_http_script_return_code_t *code;
|
|
|
701
|
|
|
702 code = (ngx_http_script_return_code_t *) e->ip;
|
|
|
703
|
|
|
704 e->status = code->status;
|
|
|
705
|
|
|
706 e->ip += sizeof(ngx_http_script_return_code_t) - sizeof(uintptr_t);
|
|
56
|
707 }
|
|
58
|
708
|
|
|
709
|
|
|
710 void
|
|
|
711 ngx_http_script_if_code(ngx_http_script_engine_t *e)
|
|
|
712 {
|
|
|
713 ngx_http_script_if_code_t *code;
|
|
|
714
|
|
|
715 code = (ngx_http_script_if_code_t *) e->ip;
|
|
|
716
|
|
|
717 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
718 "http script if");
|
|
|
719
|
|
|
720 e->sp--;
|
|
|
721
|
|
|
722 if (e->sp->value) {
|
|
|
723 if (code->loc_conf) {
|
|
|
724 e->request->loc_conf = code->loc_conf;
|
|
|
725 }
|
|
|
726
|
|
|
727 e->ip += sizeof(ngx_http_script_if_code_t);
|
|
|
728 return;
|
|
|
729 }
|
|
|
730
|
|
|
731 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
732 "http script if false");
|
|
|
733
|
|
|
734 e->ip += code->next;
|
|
|
735 }
|
|
|
736
|
|
|
737
|
|
|
738 void
|
|
64
|
739 ngx_http_script_complex_value_code(ngx_http_script_engine_t *e)
|
|
|
740 {
|
|
|
741 size_t len;
|
|
|
742 ngx_http_script_engine_t le;
|
|
|
743 ngx_http_script_len_code_pt lcode;
|
|
|
744 ngx_http_script_complex_value_code_t *code;
|
|
|
745
|
|
|
746 code = (ngx_http_script_complex_value_code_t *) e->ip;
|
|
|
747
|
|
|
748 e->ip += sizeof(ngx_http_script_complex_value_code_t);
|
|
|
749
|
|
|
750 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
751 "http script complex value");
|
|
|
752
|
|
|
753 ngx_memzero(&le, sizeof(ngx_http_script_engine_t));
|
|
|
754
|
|
|
755 le.ip = code->lengths->elts;
|
|
|
756 le.request = e->request;
|
|
|
757 le.captures = e->captures;
|
|
|
758 le.ncaptures = e->ncaptures;
|
|
|
759
|
|
|
760 for (len = 0; *(uintptr_t *) le.ip; len += lcode(&le)) {
|
|
|
761 lcode = *(ngx_http_script_len_code_pt *) le.ip;
|
|
|
762 }
|
|
|
763
|
|
|
764 e->buf.len = len;
|
|
|
765 e->buf.data = ngx_palloc(e->request->pool, len);
|
|
|
766 if (e->buf.data == NULL) {
|
|
|
767 e->ip = ngx_http_script_exit;
|
|
|
768 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
769 return;
|
|
|
770 }
|
|
|
771
|
|
|
772 e->pos = e->buf.data;
|
|
|
773
|
|
|
774 e->sp->value = 0;
|
|
|
775 e->sp->text = e->buf;
|
|
|
776 e->sp++;
|
|
|
777 }
|
|
|
778
|
|
|
779
|
|
|
780 void
|
|
58
|
781 ngx_http_script_value_code(ngx_http_script_engine_t *e)
|
|
|
782 {
|
|
|
783 ngx_http_script_value_code_t *code;
|
|
|
784
|
|
|
785 code = (ngx_http_script_value_code_t *) e->ip;
|
|
|
786
|
|
|
787 e->ip += sizeof(ngx_http_script_value_code_t);
|
|
|
788
|
|
|
789 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
790 "http script value");
|
|
|
791
|
|
|
792 e->sp->value = (ngx_uint_t) code->value;
|
|
|
793 e->sp->text.len = (size_t) code->text_len;
|
|
|
794 e->sp->text.data = (u_char *) code->text_data;
|
|
|
795 e->sp++;
|
|
|
796 }
|
|
|
797
|
|
|
798
|
|
|
799 void
|
|
|
800 ngx_http_script_set_var_code(ngx_http_script_engine_t *e)
|
|
|
801 {
|
|
|
802 ngx_http_request_t *r;
|
|
|
803 ngx_http_variable_value_t *value;
|
|
|
804 ngx_http_core_main_conf_t *cmcf;
|
|
|
805 ngx_http_script_var_code_t *code;
|
|
|
806
|
|
|
807 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
808 "http script set var");
|
|
|
809
|
|
|
810 code = (ngx_http_script_var_code_t *) e->ip;
|
|
|
811
|
|
|
812 e->ip += sizeof(ngx_http_script_var_code_t);
|
|
|
813
|
|
|
814 r = e->request;
|
|
|
815
|
|
|
816 if (r->variables == NULL) {
|
|
|
817 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
818
|
|
|
819 r->variables = ngx_pcalloc(r->pool, cmcf->variables.nelts
|
|
|
820 * sizeof(ngx_http_variable_value_t *));
|
|
|
821 if (r->variables == NULL) {
|
|
|
822 e->ip = ngx_http_script_exit;
|
|
|
823 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
824 return;
|
|
|
825 }
|
|
|
826 }
|
|
|
827
|
|
|
828 value = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t));
|
|
|
829 if (value == NULL) {
|
|
|
830 e->ip = ngx_http_script_exit;
|
|
|
831 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
832 return;
|
|
|
833 }
|
|
|
834
|
|
|
835 e->sp--;
|
|
|
836
|
|
|
837 *value = *e->sp;
|
|
|
838
|
|
|
839 r->variables[code->index] = value;
|
|
|
840 }
|
|
|
841
|
|
|
842
|
|
|
843 void
|
|
|
844 ngx_http_script_var_code(ngx_http_script_engine_t *e)
|
|
|
845 {
|
|
|
846 ngx_http_variable_value_t *value;
|
|
|
847 ngx_http_script_var_code_t *code;
|
|
|
848
|
|
|
849 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
850 "http script var");
|
|
|
851
|
|
|
852 code = (ngx_http_script_var_code_t *) e->ip;
|
|
|
853
|
|
|
854 e->ip += sizeof(ngx_http_script_var_code_t);
|
|
|
855
|
|
|
856 value = ngx_http_get_indexed_variable(e->request, code->index);
|
|
|
857
|
|
|
858 if (value == NULL || value == NGX_HTTP_VAR_NOT_FOUND) {
|
|
|
859 e->sp->value = 0;
|
|
|
860 e->sp->text.len = 0;
|
|
|
861 e->sp->text.data = (u_char *) "";
|
|
|
862 e->sp++;
|
|
|
863
|
|
|
864 return;
|
|
|
865 }
|
|
|
866
|
|
|
867 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
868 "http script var: %ui, \"%V\"", value->value, &value->text);
|
|
|
869
|
|
|
870 *e->sp = *value;
|
|
|
871 e->sp++;
|
|
|
872 }
|
|
|
873
|
|
|
874
|
|
|
875 void
|
|
|
876 ngx_http_script_nop_code(ngx_http_script_engine_t *e)
|
|
|
877 {
|
|
|
878 e->ip += sizeof(uintptr_t);
|
|
|
879 }
|
