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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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122
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37 ngx_int_t index, *p;
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58
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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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122
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45 if (sc->flushes && *sc->flushes == NULL) {
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46 n = sc->variables ? sc->variables : 1;
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47 *sc->flushes = ngx_array_create(sc->cf->pool, n, sizeof(ngx_uint_t));
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48 if (*sc->flushes == NULL) {
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49 return NGX_ERROR;
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50 }
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51 }
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52
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53
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58
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54 if (*sc->lengths == NULL) {
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55 n = sc->variables * (2 * sizeof(ngx_http_script_copy_code_t)
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56 + sizeof(ngx_http_script_var_code_t))
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57 + sizeof(uintptr_t);
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58
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59 *sc->lengths = ngx_array_create(sc->cf->pool, n, 1);
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60 if (*sc->lengths == NULL) {
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61 return NGX_ERROR;
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62 }
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63 }
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64
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65
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66 if (*sc->values == NULL) {
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67 n = (sc->variables * (2 * sizeof(ngx_http_script_copy_code_t)
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68 + sizeof(ngx_http_script_var_code_t))
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69 + sizeof(uintptr_t)
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70 + sc->source->len
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71 + sizeof(uintptr_t) - 1)
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72 & ~(sizeof(uintptr_t) - 1);
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73
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74 *sc->values = ngx_array_create(sc->cf->pool, n, 1);
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75 if (*sc->values == NULL) {
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56
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76 return NGX_ERROR;
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77 }
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78 }
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79
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58
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80 sc->variables = 0;
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81
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82 for (i = 0; i < sc->source->len; /* void */ ) {
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83
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84 name.len = 0;
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85
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86 if (sc->source->data[i] == '$') {
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87
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88 if (++i == sc->source->len) {
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89 goto invalid_variable;
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90 }
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91
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92 if (sc->source->data[i] >= '1' && sc->source->data[i] <= '9') {
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93
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94 copy_capture = ngx_http_script_add_code(*sc->lengths,
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95 sizeof(ngx_http_script_copy_capture_code_t),
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96 NULL);
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97 if (copy_capture == NULL) {
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98 return NGX_ERROR;
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99 }
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100
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101 copy_capture->code = (ngx_http_script_code_pt)
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102 ngx_http_script_copy_capture_len_code;
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103 copy_capture->n = 2 * (sc->source->data[i] - '0');
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104
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105 copy_capture = ngx_http_script_add_code(*sc->values,
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106 sizeof(ngx_http_script_copy_capture_code_t),
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107 &sc->main);
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108 if (copy_capture == NULL) {
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109 return NGX_ERROR;
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110 }
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111
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112 copy_capture->code = ngx_http_script_copy_capture_code;
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113 copy_capture->n = sc->source->data[i] - '0';
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114
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115 if (sc->ncaptures < copy_capture->n) {
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116 sc->ncaptures = copy_capture->n;
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117 }
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118
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119 copy_capture->n *= 2;
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56
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120
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58
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121 i++;
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122
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123 continue;
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124 }
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125
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126 if (sc->source->data[i] == '{') {
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127 bracket = 1;
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128
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129 if (++i == sc->source->len) {
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130 goto invalid_variable;
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131 }
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132
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133 name.data = &sc->source->data[i];
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134
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135 } else {
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136 bracket = 0;
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137 name.data = &sc->source->data[i];
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138 }
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139
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140 for ( /* void */ ; i < sc->source->len; i++, name.len++) {
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141 ch = sc->source->data[i];
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56
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142
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58
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143 if (ch == '}' && bracket) {
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144 i++;
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145 bracket = 0;
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146 break;
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147 }
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148
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149 if ((ch >= 'A' && ch <= 'Z')
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150 || (ch >= 'a' && ch <= 'z')
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151 || (ch >= '0' && ch <= '9')
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152 || ch == '_')
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153 {
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154 continue;
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155 }
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156
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157 break;
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158 }
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159
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160 if (bracket) {
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161 ngx_conf_log_error(NGX_LOG_EMERG, sc->cf, 0,
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162 "the closing bracket in \"%V\" "
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163 "variable is missing", &name);
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56
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164 return NGX_ERROR;
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165 }
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166
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58
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167 if (name.len == 0) {
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168 goto invalid_variable;
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169 }
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56
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170
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58
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171 sc->variables++;
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56
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172
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58
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173 index = ngx_http_get_variable_index(sc->cf, &name);
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174
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175 if (index == NGX_ERROR) {
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56
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176 return NGX_ERROR;
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177 }
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178
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122
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179 if (sc->flushes) {
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180 p = ngx_array_push(*sc->flushes);
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181 if (p == NULL) {
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182 return NGX_ERROR;
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183 }
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184
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185 *p = index;
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186 }
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187
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58
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188 var_code = ngx_http_script_add_code(*sc->lengths,
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189 sizeof(ngx_http_script_var_code_t),
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190 NULL);
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56
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191 if (var_code == NULL) {
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192 return NGX_ERROR;
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193 }
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194
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195 var_code->code = (ngx_http_script_code_pt)
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58
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196 ngx_http_script_copy_var_len_code;
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197 var_code->index = (uintptr_t) index;
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198
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199
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58
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200 var_code = ngx_http_script_add_code(*sc->values,
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201 sizeof(ngx_http_script_var_code_t),
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202 &sc->main);
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56
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203 if (var_code == NULL) {
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204 return NGX_ERROR;
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205 }
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206
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58
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207 var_code->code = ngx_http_script_copy_var_code;
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208 var_code->index = (uintptr_t) index;
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209
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210 continue;
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211 }
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56
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212
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58
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213 if (sc->source->data[i] == '?' && sc->compile_args) {
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214 sc->args = 1;
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215 sc->compile_args = 0;
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216
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58
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217 code = ngx_http_script_add_code(*sc->values, sizeof(uintptr_t),
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218 &sc->main);
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219 if (code == NULL) {
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56
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220 return NGX_ERROR;
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221 }
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222
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58
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223 *code = (uintptr_t) ngx_http_script_start_args_code;
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224
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225 i++;
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226
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56
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227 continue;
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228 }
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229
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58
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230 name.data = &sc->source->data[i];
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231
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232 while (i < sc->source->len
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233 && sc->source->data[i] != '$'
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234 && !(sc->source->data[i] == '?' && sc->compile_args))
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235 {
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236 i++;
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237 name.len++;
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238 }
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239
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240 sc->size += name.len;
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241
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242 copy = ngx_http_script_add_code(*sc->lengths,
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243 sizeof(ngx_http_script_copy_code_t),
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244 NULL);
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245 if (copy == NULL) {
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56
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246 return NGX_ERROR;
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247 }
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58
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248
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249 copy->code = (ngx_http_script_code_pt) ngx_http_script_copy_len_code;
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250 copy->len = name.len;
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251
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252 size = (sizeof(ngx_http_script_copy_code_t) + name.len
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253 + sizeof(uintptr_t) - 1)
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254 & ~(sizeof(uintptr_t) - 1);
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56
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255
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58
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256 copy = ngx_http_script_add_code(*sc->values, size, &sc->main);
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257 if (copy == NULL) {
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258 return NGX_ERROR;
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259 }
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260
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261 copy->code = ngx_http_script_copy_code;
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262 copy->len = name.len;
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263
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264 ngx_memcpy((u_char *) copy + sizeof(ngx_http_script_copy_code_t),
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265 name.data, name.len);
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56
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266 }
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267
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58
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268 if (sc->complete_lengths) {
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269 code = ngx_http_script_add_code(*sc->lengths, sizeof(uintptr_t), NULL);
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270 if (code == NULL) {
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271 return NGX_ERROR;
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272 }
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56
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273
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58
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274 *code = (uintptr_t) NULL;
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56
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275 }
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276
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58
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277 if (sc->complete_values) {
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278 code = ngx_http_script_add_code(*sc->values, sizeof(uintptr_t),
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279 &sc->main);
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280 if (code == NULL) {
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281 return NGX_ERROR;
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282 }
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283
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284 *code = (uintptr_t) NULL;
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285 }
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56
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286
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287 return NGX_OK;
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58
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288
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289 invalid_variable:
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290
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291 ngx_conf_log_error(NGX_LOG_EMERG, sc->cf, 0, "invalid variable name");
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292
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293 return NGX_ERROR;
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56
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294 }
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295
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296
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172
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297 u_char *
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298 ngx_http_script_run(ngx_http_request_t *r, ngx_str_t *value,
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299 void *code_lengths, size_t len, void *code_values)
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300 {
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301 ngx_http_script_code_pt code;
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302 ngx_http_script_len_code_pt lcode;
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303 ngx_http_script_engine_t e;
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304
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305 ngx_memzero(&e, sizeof(ngx_http_script_engine_t));
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306
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307 e.ip = code_lengths;
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308 e.request = r;
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309 e.flushed = 1;
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310
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311 while (*(uintptr_t *) e.ip) {
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312 lcode = *(ngx_http_script_len_code_pt *) e.ip;
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313 len += lcode(&e);
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314 }
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315
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316
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317 value->len = len;
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318 value->data = ngx_palloc(r->pool, len);
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319 if (value->data == NULL) {
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320 return NULL;
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321 }
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322
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323 e.ip = code_values;
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324 e.pos = value->data;
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325
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326 while (*(uintptr_t *) e.ip) {
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327 code = *(ngx_http_script_code_pt *) e.ip;
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328 code((ngx_http_script_engine_t *) &e);
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329 }
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330
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331 return e.pos;
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332 }
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333
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334
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122
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335 void
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336 ngx_http_script_flush_no_cachable_variables(ngx_http_request_t *r,
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337 ngx_array_t *indices)
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338 {
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339 ngx_uint_t n, *index;
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340
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341 if (indices) {
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342 index = indices->elts;
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343 for (n = 0; n < indices->nelts; n++) {
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344 if (r->variables[index[n]].no_cachable) {
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345 r->variables[index[n]].valid = 0;
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346 r->variables[index[n]].not_found = 0;
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347 }
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348 }
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349 }
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350 }
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351
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352
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58
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353 void *
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56
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354 ngx_http_script_start_code(ngx_pool_t *pool, ngx_array_t **codes, size_t size)
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355 {
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356 if (*codes == NULL) {
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357 *codes = ngx_array_create(pool, 256, 1);
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358 if (*codes == NULL) {
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359 return NULL;
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360 }
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361 }
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362
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363 return ngx_array_push_n(*codes, size);
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364 }
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365
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58
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366
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367 void *
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368 ngx_http_script_add_code(ngx_array_t *codes, size_t size, void *code)
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369 {
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370 u_char *elts, **p;
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371 void *new;
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372
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373 elts = codes->elts;
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374
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375 new = ngx_array_push_n(codes, size);
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376 if (new == NULL) {
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377 return NGX_CONF_ERROR;
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378 }
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379
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380 if (code) {
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381 if (elts != codes->elts) {
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382 p = code;
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383 *p += (u_char *) codes->elts - elts;
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384 }
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385 }
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386
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387 return new;
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388 }
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56
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389
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390
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391 size_t
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58
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392 ngx_http_script_copy_len_code(ngx_http_script_engine_t *e)
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56
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393 {
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394 ngx_http_script_copy_code_t *code;
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395
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58
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396 code = (ngx_http_script_copy_code_t *) e->ip;
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56
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397
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58
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398 e->ip += sizeof(ngx_http_script_copy_code_t);
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56
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399
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400 return code->len;
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401 }
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402
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403
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404 void
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58
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405 ngx_http_script_copy_code(ngx_http_script_engine_t *e)
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56
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406 {
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407 ngx_http_script_copy_code_t *code;
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408
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58
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409 code = (ngx_http_script_copy_code_t *) e->ip;
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410
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411 if (!e->skip) {
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122
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412 e->pos = ngx_copy(e->pos, e->ip + sizeof(ngx_http_script_copy_code_t),
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413 code->len);
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58
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414 }
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56
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415
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58
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416 e->ip += sizeof(ngx_http_script_copy_code_t)
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417 + ((code->len + sizeof(uintptr_t) - 1) & ~(sizeof(uintptr_t) - 1));
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56
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418
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58
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419 if (e->log) {
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420 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
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|
|
421 "http script copy: \"%V\"", &e->buf);
|
|
|
422 }
|
|
56
|
423 }
|
|
|
424
|
|
|
425
|
|
|
426 size_t
|
|
58
|
427 ngx_http_script_copy_var_len_code(ngx_http_script_engine_t *e)
|
|
56
|
428 {
|
|
|
429 ngx_http_variable_value_t *value;
|
|
|
430 ngx_http_script_var_code_t *code;
|
|
|
431
|
|
58
|
432 code = (ngx_http_script_var_code_t *) e->ip;
|
|
56
|
433
|
|
58
|
434 e->ip += sizeof(ngx_http_script_var_code_t);
|
|
56
|
435
|
|
122
|
436 if (e->flushed) {
|
|
|
437 value = ngx_http_get_indexed_variable(e->request, code->index);
|
|
56
|
438
|
|
122
|
439 } else {
|
|
|
440 value = ngx_http_get_flushed_variable(e->request, code->index);
|
|
|
441 }
|
|
|
442
|
|
|
443 if (value && !value->not_found) {
|
|
|
444 return value->len;
|
|
56
|
445 }
|
|
|
446
|
|
102
|
447 return 0;
|
|
56
|
448 }
|
|
|
449
|
|
|
450
|
|
|
451 void
|
|
58
|
452 ngx_http_script_copy_var_code(ngx_http_script_engine_t *e)
|
|
56
|
453 {
|
|
|
454 ngx_http_variable_value_t *value;
|
|
|
455 ngx_http_script_var_code_t *code;
|
|
|
456
|
|
58
|
457 code = (ngx_http_script_var_code_t *) e->ip;
|
|
|
458
|
|
|
459 e->ip += sizeof(ngx_http_script_var_code_t);
|
|
|
460
|
|
|
461 if (!e->skip) {
|
|
122
|
462
|
|
|
463 if (e->flushed) {
|
|
|
464 value = ngx_http_get_indexed_variable(e->request, code->index);
|
|
58
|
465
|
|
122
|
466 } else {
|
|
|
467 value = ngx_http_get_flushed_variable(e->request, code->index);
|
|
|
468 }
|
|
|
469
|
|
|
470 if (value && !value->not_found) {
|
|
|
471 e->pos = ngx_copy(e->pos, value->data, value->len);
|
|
58
|
472
|
|
102
|
473 if (e->log) {
|
|
|
474 ngx_log_debug1(NGX_LOG_DEBUG_HTTP,
|
|
|
475 e->request->connection->log, 0,
|
|
|
476 "http script var: \"%V\"", &e->buf);
|
|
|
477 }
|
|
58
|
478 }
|
|
|
479 }
|
|
|
480 }
|
|
|
481
|
|
|
482
|
|
|
483 size_t
|
|
|
484 ngx_http_script_copy_capture_len_code(ngx_http_script_engine_t *e)
|
|
|
485 {
|
|
|
486 ngx_http_script_copy_capture_code_t *code;
|
|
|
487
|
|
|
488 code = (ngx_http_script_copy_capture_code_t *) e->ip;
|
|
|
489
|
|
|
490 e->ip += sizeof(ngx_http_script_copy_capture_code_t);
|
|
|
491
|
|
64
|
492 if (code->n < e->ncaptures) {
|
|
|
493 if ((e->args || e->quote)
|
|
|
494 && (e->request->quoted_uri || e->request->plus_in_uri))
|
|
|
495 {
|
|
|
496 return e->captures[code->n + 1] - e->captures[code->n]
|
|
|
497 + ngx_escape_uri(NULL,
|
|
|
498 &e->line.data[e->captures[code->n]],
|
|
58
|
499 e->captures[code->n + 1] - e->captures[code->n],
|
|
|
500 NGX_ESCAPE_ARGS);
|
|
64
|
501 } else {
|
|
|
502 return e->captures[code->n + 1] - e->captures[code->n];
|
|
|
503 }
|
|
58
|
504 }
|
|
64
|
505
|
|
|
506 return 0;
|
|
58
|
507 }
|
|
|
508
|
|
|
509
|
|
|
510 void
|
|
|
511 ngx_http_script_copy_capture_code(ngx_http_script_engine_t *e)
|
|
|
512 {
|
|
|
513 ngx_http_script_copy_capture_code_t *code;
|
|
|
514
|
|
|
515 code = (ngx_http_script_copy_capture_code_t *) e->ip;
|
|
|
516
|
|
|
517 e->ip += sizeof(ngx_http_script_copy_capture_code_t);
|
|
56
|
518
|
|
64
|
519 if (code->n < e->ncaptures) {
|
|
|
520 if ((e->args || e->quote)
|
|
|
521 && (e->request->quoted_uri || e->request->plus_in_uri))
|
|
|
522 {
|
|
|
523 e->pos = (u_char *) ngx_escape_uri(e->pos,
|
|
|
524 &e->line.data[e->captures[code->n]],
|
|
58
|
525 e->captures[code->n + 1] - e->captures[code->n],
|
|
|
526 NGX_ESCAPE_ARGS);
|
|
64
|
527 } else {
|
|
122
|
528 e->pos = ngx_copy(e->pos,
|
|
|
529 &e->line.data[e->captures[code->n]],
|
|
|
530 e->captures[code->n + 1] - e->captures[code->n]);
|
|
64
|
531 }
|
|
58
|
532 }
|
|
|
533
|
|
|
534 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
535 "http script capture: \"%V\"", &e->buf);
|
|
|
536 }
|
|
|
537
|
|
|
538
|
|
|
539 void
|
|
|
540 ngx_http_script_start_args_code(ngx_http_script_engine_t *e)
|
|
|
541 {
|
|
|
542 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
543 "http script args");
|
|
126
|
544
|
|
58
|
545 e->args = e->pos;
|
|
|
546 e->ip += sizeof(uintptr_t);
|
|
|
547 }
|
|
|
548
|
|
|
549
|
|
66
|
550
|
|
|
551 #if (NGX_PCRE)
|
|
|
552
|
|
58
|
553 void
|
|
|
554 ngx_http_script_regex_start_code(ngx_http_script_engine_t *e)
|
|
|
555 {
|
|
|
556 size_t len;
|
|
|
557 ngx_int_t rc;
|
|
|
558 ngx_uint_t n;
|
|
|
559 ngx_http_request_t *r;
|
|
|
560 ngx_http_script_engine_t le;
|
|
|
561 ngx_http_script_len_code_pt lcode;
|
|
|
562 ngx_http_script_regex_code_t *code;
|
|
|
563
|
|
|
564 code = (ngx_http_script_regex_code_t *) e->ip;
|
|
|
565
|
|
|
566 r = e->request;
|
|
|
567
|
|
|
568 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
569 "http script regex: \"%V\"", &code->name);
|
|
|
570
|
|
|
571 if (code->uri) {
|
|
64
|
572 e->line = r->uri;
|
|
58
|
573 } else {
|
|
|
574 e->sp--;
|
|
122
|
575 e->line.len = e->sp->len;
|
|
|
576 e->line.data = e->sp->data;
|
|
58
|
577 }
|
|
56
|
578
|
|
64
|
579 rc = ngx_regex_exec(code->regex, &e->line, e->captures, code->ncaptures);
|
|
58
|
580
|
|
|
581 if (rc == NGX_REGEX_NO_MATCHED) {
|
|
|
582 if (e->log) {
|
|
|
583 ngx_log_error(NGX_LOG_NOTICE, r->connection->log, 0,
|
|
64
|
584 "\"%V\" does not match \"%V\"",
|
|
|
585 &code->name, &e->line);
|
|
58
|
586 }
|
|
|
587
|
|
64
|
588 e->ncaptures = 0;
|
|
|
589
|
|
58
|
590 if (code->test) {
|
|
180
|
591 if (code->negative_test) {
|
|
|
592 e->sp->len = 1;
|
|
|
593 e->sp->data = (u_char *) "1";
|
|
|
594
|
|
|
595 } else {
|
|
|
596 e->sp->len = 0;
|
|
|
597 e->sp->data = (u_char *) "";
|
|
|
598 }
|
|
|
599
|
|
58
|
600 e->sp++;
|
|
|
601
|
|
|
602 e->ip += sizeof(ngx_http_script_regex_code_t);
|
|
|
603 return;
|
|
|
604 }
|
|
|
605
|
|
|
606 e->ip += code->next;
|
|
|
607 return;
|
|
|
608 }
|
|
|
609
|
|
|
610 if (rc < 0) {
|
|
|
611 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
|
|
|
612 ngx_regex_exec_n " failed: %d on \"%V\" using \"%V\"",
|
|
64
|
613 rc, &e->line, &code->name);
|
|
58
|
614
|
|
|
615 e->ip = ngx_http_script_exit;
|
|
|
616 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
617 return;
|
|
|
618 }
|
|
|
619
|
|
|
620 if (e->log) {
|
|
|
621 ngx_log_error(NGX_LOG_NOTICE, r->connection->log, 0,
|
|
64
|
622 "\"%V\" matches \"%V\"", &code->name, &e->line);
|
|
58
|
623 }
|
|
|
624
|
|
64
|
625 e->ncaptures = code->ncaptures;
|
|
|
626
|
|
58
|
627 if (code->test) {
|
|
180
|
628 if (code->negative_test) {
|
|
|
629 e->sp->len = 0;
|
|
|
630 e->sp->data = (u_char *) "";
|
|
|
631
|
|
|
632 } else {
|
|
|
633 e->sp->len = 1;
|
|
|
634 e->sp->data = (u_char *) "1";
|
|
|
635 }
|
|
|
636
|
|
58
|
637 e->sp++;
|
|
|
638
|
|
|
639 e->ip += sizeof(ngx_http_script_regex_code_t);
|
|
|
640 return;
|
|
|
641 }
|
|
|
642
|
|
|
643 if (code->status) {
|
|
|
644 e->status = code->status;
|
|
56
|
645
|
|
58
|
646 if (!code->redirect) {
|
|
|
647 e->ip = ngx_http_script_exit;
|
|
|
648 return;
|
|
|
649 }
|
|
|
650 }
|
|
|
651
|
|
|
652 if (code->uri) {
|
|
|
653 r->internal = 1;
|
|
|
654 r->valid_unparsed_uri = 0;
|
|
|
655
|
|
|
656 if (code->break_cycle) {
|
|
|
657 r->valid_location = 0;
|
|
76
|
658 r->uri_changed = 0;
|
|
58
|
659
|
|
|
660 } else {
|
|
|
661 r->uri_changed = 1;
|
|
|
662 }
|
|
|
663 }
|
|
|
664
|
|
|
665 if (code->lengths == NULL) {
|
|
|
666 e->buf.len = code->size;
|
|
|
667
|
|
|
668 if (code->uri) {
|
|
|
669 if (rc && (r->quoted_uri || r->plus_in_uri)) {
|
|
|
670 e->buf.len += 2 * ngx_escape_uri(NULL, r->uri.data, r->uri.len,
|
|
|
671 NGX_ESCAPE_ARGS);
|
|
|
672 }
|
|
|
673 }
|
|
|
674
|
|
|
675 for (n = 1; n < (ngx_uint_t) rc; n++) {
|
|
|
676 e->buf.len += e->captures[2 * n + 1] - e->captures[2 * n];
|
|
|
677 }
|
|
|
678
|
|
|
679 } else {
|
|
|
680 ngx_memzero(&le, sizeof(ngx_http_script_engine_t));
|
|
|
681
|
|
|
682 le.ip = code->lengths->elts;
|
|
|
683 le.request = r;
|
|
|
684 le.captures = e->captures;
|
|
64
|
685 le.ncaptures = e->ncaptures;
|
|
58
|
686
|
|
|
687 len = 1; /* reserve 1 byte for possible "?" */
|
|
|
688
|
|
|
689 while (*(uintptr_t *) le.ip) {
|
|
|
690 lcode = *(ngx_http_script_len_code_pt *) le.ip;
|
|
|
691 len += lcode(&le);
|
|
|
692 }
|
|
|
693
|
|
|
694 e->buf.len = len;
|
|
|
695 }
|
|
|
696
|
|
64
|
697 if (code->add_args && r->args.len) {
|
|
58
|
698 e->buf.len += r->args.len + 1;
|
|
|
699 }
|
|
|
700
|
|
|
701 e->buf.data = ngx_palloc(r->pool, e->buf.len);
|
|
|
702 if (e->buf.data == NULL) {
|
|
|
703 e->ip = ngx_http_script_exit;
|
|
|
704 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
56
|
705 return;
|
|
|
706 }
|
|
|
707
|
|
58
|
708 e->quote = code->redirect;
|
|
|
709
|
|
|
710 e->pos = e->buf.data;
|
|
|
711
|
|
|
712 e->ip += sizeof(ngx_http_script_regex_code_t);
|
|
|
713 }
|
|
|
714
|
|
|
715
|
|
|
716 void
|
|
|
717 ngx_http_script_regex_end_code(ngx_http_script_engine_t *e)
|
|
|
718 {
|
|
126
|
719 u_char *dst, *src;
|
|
58
|
720 ngx_http_request_t *r;
|
|
|
721 ngx_http_script_regex_end_code_t *code;
|
|
|
722
|
|
|
723 code = (ngx_http_script_regex_end_code_t *) e->ip;
|
|
|
724
|
|
|
725 r = e->request;
|
|
|
726
|
|
|
727 e->quote = 0;
|
|
|
728
|
|
|
729 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
730 "http script regex end");
|
|
|
731
|
|
|
732 if (code->redirect) {
|
|
|
733
|
|
126
|
734 dst = e->buf.data;
|
|
|
735 src = e->buf.data;
|
|
|
736
|
|
150
|
737 ngx_unescape_uri(&dst, &src, e->pos - e->buf.data, NGX_UNESCAPE_URI);
|
|
126
|
738
|
|
|
739 if (src < e->pos) {
|
|
|
740 dst = ngx_copy(dst, src, e->pos - src);
|
|
|
741 }
|
|
|
742
|
|
|
743 e->pos = dst;
|
|
|
744
|
|
|
745 if (code->add_args && r->args.len) {
|
|
58
|
746 *e->pos++ = (u_char) (code->args ? '&' : '?');
|
|
122
|
747 e->pos = ngx_copy(e->pos, r->args.data, r->args.len);
|
|
58
|
748 }
|
|
|
749
|
|
|
750 e->buf.len = e->pos - e->buf.data;
|
|
|
751
|
|
|
752 if (e->log) {
|
|
|
753 ngx_log_error(NGX_LOG_NOTICE, r->connection->log, 0,
|
|
|
754 "rewritten redirect: \"%V\"", &e->buf);
|
|
|
755 }
|
|
|
756
|
|
|
757 r->headers_out.location = ngx_list_push(&r->headers_out.headers);
|
|
|
758 if (r->headers_out.location == NULL) {
|
|
|
759 e->ip = ngx_http_script_exit;
|
|
|
760 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
761 return;
|
|
|
762 }
|
|
|
763
|
|
126
|
764 r->headers_out.location->hash = 1;
|
|
58
|
765 r->headers_out.location->key.len = sizeof("Location") - 1;
|
|
|
766 r->headers_out.location->key.data = (u_char *) "Location";
|
|
|
767 r->headers_out.location->value = e->buf;
|
|
|
768
|
|
|
769 e->ip += sizeof(ngx_http_script_regex_end_code_t);
|
|
|
770 return;
|
|
|
771 }
|
|
|
772
|
|
126
|
773 if (e->args) {
|
|
58
|
774 e->buf.len = e->args - e->buf.data;
|
|
|
775
|
|
|
776 if (code->add_args && r->args.len) {
|
|
|
777 *e->pos++ = '&';
|
|
122
|
778 e->pos = ngx_copy(e->pos, r->args.data, r->args.len);
|
|
58
|
779 }
|
|
|
780
|
|
|
781 r->args.len = e->pos - e->args;
|
|
|
782 r->args.data = e->args;
|
|
|
783
|
|
|
784 e->args = NULL;
|
|
|
785
|
|
|
786 } else {
|
|
|
787 e->buf.len = e->pos - e->buf.data;
|
|
|
788 }
|
|
|
789
|
|
|
790 if (e->log) {
|
|
|
791 ngx_log_error(NGX_LOG_NOTICE, r->connection->log, 0,
|
|
|
792 "rewritten data: \"%V\", args: \"%V\"",
|
|
|
793 &e->buf, &r->args);
|
|
|
794 }
|
|
|
795
|
|
|
796 if (code->uri) {
|
|
|
797 r->uri = e->buf;
|
|
|
798
|
|
84
|
799 if (r->uri.len == 0) {
|
|
|
800 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
801 "the rewritten URI has a zero length");
|
|
|
802 e->ip = ngx_http_script_exit;
|
|
|
803 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
804 return;
|
|
|
805 }
|
|
|
806
|
|
58
|
807 if (ngx_http_set_exten(r) != NGX_OK) {
|
|
|
808 e->ip = ngx_http_script_exit;
|
|
|
809 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
810 return;
|
|
|
811 }
|
|
|
812 }
|
|
|
813
|
|
|
814 e->ip += sizeof(ngx_http_script_regex_end_code_t);
|
|
|
815 }
|
|
|
816
|
|
66
|
817 #endif
|
|
|
818
|
|
58
|
819
|
|
|
820 void
|
|
|
821 ngx_http_script_return_code(ngx_http_script_engine_t *e)
|
|
126
|
822 {
|
|
58
|
823 ngx_http_script_return_code_t *code;
|
|
126
|
824
|
|
58
|
825 code = (ngx_http_script_return_code_t *) e->ip;
|
|
|
826
|
|
|
827 e->status = code->status;
|
|
|
828
|
|
|
829 e->ip += sizeof(ngx_http_script_return_code_t) - sizeof(uintptr_t);
|
|
56
|
830 }
|
|
58
|
831
|
|
|
832
|
|
|
833 void
|
|
76
|
834 ngx_http_script_break_code(ngx_http_script_engine_t *e)
|
|
|
835 {
|
|
|
836 e->request->uri_changed = 0;
|
|
|
837
|
|
|
838 e->ip = ngx_http_script_exit;
|
|
|
839 }
|
|
|
840
|
|
|
841
|
|
|
842 void
|
|
58
|
843 ngx_http_script_if_code(ngx_http_script_engine_t *e)
|
|
|
844 {
|
|
|
845 ngx_http_script_if_code_t *code;
|
|
|
846
|
|
|
847 code = (ngx_http_script_if_code_t *) e->ip;
|
|
|
848
|
|
|
849 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
850 "http script if");
|
|
|
851
|
|
|
852 e->sp--;
|
|
|
853
|
|
122
|
854 if (e->sp->len && e->sp->data[0] != '0') {
|
|
58
|
855 if (code->loc_conf) {
|
|
|
856 e->request->loc_conf = code->loc_conf;
|
|
84
|
857 ngx_http_update_location_config(e->request);
|
|
58
|
858 }
|
|
|
859
|
|
|
860 e->ip += sizeof(ngx_http_script_if_code_t);
|
|
|
861 return;
|
|
|
862 }
|
|
|
863
|
|
|
864 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
126
|
865 "http script if: false");
|
|
58
|
866
|
|
|
867 e->ip += code->next;
|
|
|
868 }
|
|
|
869
|
|
|
870
|
|
|
871 void
|
|
126
|
872 ngx_http_script_equal_code(ngx_http_script_engine_t *e)
|
|
|
873 {
|
|
|
874 ngx_http_variable_value_t *val, *res;
|
|
|
875
|
|
|
876 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
877 "http script equal");
|
|
|
878
|
|
|
879 e->sp--;
|
|
|
880 val = e->sp;
|
|
|
881 res = e->sp - 1;
|
|
|
882
|
|
|
883 e->ip += sizeof(uintptr_t);
|
|
|
884
|
|
|
885 if (val->len == res->len && ngx_strncmp(val->data, res->data, res->len)
|
|
|
886 == 0)
|
|
|
887 {
|
|
|
888 *res = ngx_http_variable_true_value;
|
|
|
889 return;
|
|
|
890 }
|
|
|
891
|
|
|
892 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
893 "http script equal: no");
|
|
|
894
|
|
|
895 *res = ngx_http_variable_null_value;
|
|
|
896 }
|
|
|
897
|
|
|
898
|
|
|
899 void
|
|
|
900 ngx_http_script_not_equal_code(ngx_http_script_engine_t *e)
|
|
|
901 {
|
|
|
902 ngx_http_variable_value_t *val, *res;
|
|
|
903
|
|
|
904 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
905 "http script not equal");
|
|
|
906
|
|
|
907 e->sp--;
|
|
|
908 val = e->sp;
|
|
|
909 res = e->sp - 1;
|
|
|
910
|
|
|
911 e->ip += sizeof(uintptr_t);
|
|
|
912
|
|
|
913 if (val->len == res->len && ngx_strncmp(val->data, res->data, res->len)
|
|
|
914 == 0)
|
|
|
915 {
|
|
|
916 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
917 "http script not equal: no");
|
|
|
918
|
|
|
919 *res = ngx_http_variable_null_value;
|
|
|
920 return;
|
|
|
921 }
|
|
|
922
|
|
|
923 *res = ngx_http_variable_true_value;
|
|
|
924 }
|
|
|
925
|
|
|
926
|
|
|
927 void
|
|
180
|
928 ngx_http_script_file_code(ngx_http_script_engine_t *e)
|
|
|
929 {
|
|
|
930 ngx_err_t err;
|
|
|
931 ngx_file_info_t fi;
|
|
|
932 ngx_http_variable_value_t *value;
|
|
|
933 ngx_http_script_file_code_t *code;
|
|
|
934
|
|
|
935 value = e->sp - 1;
|
|
|
936
|
|
|
937 code = (ngx_http_script_file_code_t *) e->ip;
|
|
|
938 e->ip += sizeof(ngx_http_script_file_code_t);
|
|
|
939
|
|
|
940 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
941 "http script file op %p", code->op);
|
|
|
942
|
|
|
943 if (ngx_file_info(value->data, &fi) == -1) {
|
|
|
944 err = ngx_errno;
|
|
|
945
|
|
|
946 if (err != NGX_ENOENT && err != NGX_ENOTDIR) {
|
|
|
947 ngx_log_error(NGX_LOG_CRIT, e->request->connection->log, err,
|
|
|
948 ngx_file_info_n " \"%s\" failed", value->data);
|
|
|
949 }
|
|
|
950
|
|
|
951 switch (code->op) {
|
|
|
952 case ngx_http_script_file_plain:
|
|
|
953 goto false;
|
|
|
954 case ngx_http_script_file_not_plain:
|
|
|
955 goto true;
|
|
|
956 }
|
|
|
957
|
|
|
958 goto false;
|
|
|
959 }
|
|
|
960
|
|
|
961 switch (code->op) {
|
|
|
962 case ngx_http_script_file_plain:
|
|
|
963 if (ngx_is_file(&fi)) {
|
|
|
964 goto true;
|
|
|
965 }
|
|
|
966 goto false;
|
|
|
967
|
|
|
968 case ngx_http_script_file_not_plain:
|
|
|
969 if (ngx_is_file(&fi)) {
|
|
|
970 goto false;
|
|
|
971 }
|
|
|
972 goto true;
|
|
|
973 }
|
|
|
974
|
|
|
975 false:
|
|
|
976
|
|
|
977 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
978 "http script file op false");
|
|
|
979
|
|
|
980 *value = ngx_http_variable_null_value;
|
|
|
981 return;
|
|
|
982
|
|
|
983 true:
|
|
|
984
|
|
|
985 *value = ngx_http_variable_true_value;
|
|
|
986 return;
|
|
|
987 }
|
|
|
988
|
|
|
989
|
|
|
990 void
|
|
64
|
991 ngx_http_script_complex_value_code(ngx_http_script_engine_t *e)
|
|
|
992 {
|
|
|
993 size_t len;
|
|
|
994 ngx_http_script_engine_t le;
|
|
|
995 ngx_http_script_len_code_pt lcode;
|
|
|
996 ngx_http_script_complex_value_code_t *code;
|
|
|
997
|
|
|
998 code = (ngx_http_script_complex_value_code_t *) e->ip;
|
|
|
999
|
|
|
1000 e->ip += sizeof(ngx_http_script_complex_value_code_t);
|
|
|
1001
|
|
|
1002 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
1003 "http script complex value");
|
|
|
1004
|
|
|
1005 ngx_memzero(&le, sizeof(ngx_http_script_engine_t));
|
|
|
1006
|
|
|
1007 le.ip = code->lengths->elts;
|
|
|
1008 le.request = e->request;
|
|
|
1009 le.captures = e->captures;
|
|
|
1010 le.ncaptures = e->ncaptures;
|
|
|
1011
|
|
|
1012 for (len = 0; *(uintptr_t *) le.ip; len += lcode(&le)) {
|
|
|
1013 lcode = *(ngx_http_script_len_code_pt *) le.ip;
|
|
|
1014 }
|
|
|
1015
|
|
|
1016 e->buf.len = len;
|
|
|
1017 e->buf.data = ngx_palloc(e->request->pool, len);
|
|
|
1018 if (e->buf.data == NULL) {
|
|
|
1019 e->ip = ngx_http_script_exit;
|
|
|
1020 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
1021 return;
|
|
|
1022 }
|
|
|
1023
|
|
|
1024 e->pos = e->buf.data;
|
|
|
1025
|
|
126
|
1026 e->sp->len = e->buf.len;
|
|
122
|
1027 e->sp->data = e->buf.data;
|
|
64
|
1028 e->sp++;
|
|
|
1029 }
|
|
|
1030
|
|
|
1031
|
|
|
1032 void
|
|
58
|
1033 ngx_http_script_value_code(ngx_http_script_engine_t *e)
|
|
|
1034 {
|
|
|
1035 ngx_http_script_value_code_t *code;
|
|
|
1036
|
|
|
1037 code = (ngx_http_script_value_code_t *) e->ip;
|
|
|
1038
|
|
|
1039 e->ip += sizeof(ngx_http_script_value_code_t);
|
|
|
1040
|
|
122
|
1041 e->sp->len = code->text_len;
|
|
|
1042 e->sp->data = (u_char *) code->text_data;
|
|
126
|
1043
|
|
|
1044 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
1045 "http script value: \"%V\"", e->sp);
|
|
|
1046
|
|
58
|
1047 e->sp++;
|
|
|
1048 }
|
|
|
1049
|
|
|
1050
|
|
|
1051 void
|
|
|
1052 ngx_http_script_set_var_code(ngx_http_script_engine_t *e)
|
|
|
1053 {
|
|
|
1054 ngx_http_request_t *r;
|
|
|
1055 ngx_http_script_var_code_t *code;
|
|
|
1056
|
|
|
1057 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
1058 "http script set var");
|
|
|
1059
|
|
|
1060 code = (ngx_http_script_var_code_t *) e->ip;
|
|
|
1061
|
|
|
1062 e->ip += sizeof(ngx_http_script_var_code_t);
|
|
|
1063
|
|
|
1064 r = e->request;
|
|
|
1065
|
|
|
1066 e->sp--;
|
|
|
1067
|
|
122
|
1068 r->variables[code->index].len = e->sp->len;
|
|
|
1069 r->variables[code->index].valid = 1;
|
|
|
1070 r->variables[code->index].no_cachable = 0;
|
|
|
1071 r->variables[code->index].not_found = 0;
|
|
|
1072 r->variables[code->index].data = e->sp->data;
|
|
58
|
1073 }
|
|
|
1074
|
|
|
1075
|
|
|
1076 void
|
|
|
1077 ngx_http_script_var_code(ngx_http_script_engine_t *e)
|
|
|
1078 {
|
|
|
1079 ngx_http_variable_value_t *value;
|
|
|
1080 ngx_http_script_var_code_t *code;
|
|
|
1081
|
|
|
1082 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
1083 "http script var");
|
|
|
1084
|
|
|
1085 code = (ngx_http_script_var_code_t *) e->ip;
|
|
|
1086
|
|
|
1087 e->ip += sizeof(ngx_http_script_var_code_t);
|
|
|
1088
|
|
122
|
1089 value = ngx_http_get_flushed_variable(e->request, code->index);
|
|
58
|
1090
|
|
122
|
1091 if (value && !value->not_found) {
|
|
|
1092 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
1093 "http script var: \"%V\"", value);
|
|
|
1094
|
|
102
|
1095 *e->sp = *value;
|
|
58
|
1096 e->sp++;
|
|
|
1097
|
|
|
1098 return;
|
|
|
1099 }
|
|
|
1100
|
|
126
|
1101 *e->sp = ngx_http_variable_null_value;
|
|
58
|
1102 e->sp++;
|
|
|
1103 }
|
|
|
1104
|
|
|
1105
|
|
|
1106 void
|
|
|
1107 ngx_http_script_nop_code(ngx_http_script_engine_t *e)
|
|
|
1108 {
|
|
|
1109 e->ip += sizeof(uintptr_t);
|
|
|
1110 }
|
