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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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190
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94 n = sc->source->data[i] - '0';
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95
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96 if (sc->captures_mask & (1 << n)) {
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97 sc->dup_capture = 1;
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98 }
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99
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100 sc->captures_mask |= 1 << n;
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101
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58
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102 copy_capture = ngx_http_script_add_code(*sc->lengths,
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103 sizeof(ngx_http_script_copy_capture_code_t),
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104 NULL);
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105 if (copy_capture == NULL) {
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106 return NGX_ERROR;
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107 }
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108
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109 copy_capture->code = (ngx_http_script_code_pt)
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110 ngx_http_script_copy_capture_len_code;
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190
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111 copy_capture->n = 2 * n;
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112
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58
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113
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114 copy_capture = ngx_http_script_add_code(*sc->values,
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115 sizeof(ngx_http_script_copy_capture_code_t),
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116 &sc->main);
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117 if (copy_capture == NULL) {
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118 return NGX_ERROR;
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119 }
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120
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121 copy_capture->code = ngx_http_script_copy_capture_code;
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190
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122 copy_capture->n = 2 * n;
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58
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123
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190
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124 if (sc->ncaptures < n) {
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125 sc->ncaptures = n;
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58
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126 }
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127
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128 i++;
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129
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130 continue;
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131 }
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132
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133 if (sc->source->data[i] == '{') {
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134 bracket = 1;
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135
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136 if (++i == sc->source->len) {
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137 goto invalid_variable;
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138 }
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139
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140 name.data = &sc->source->data[i];
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141
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142 } else {
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143 bracket = 0;
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144 name.data = &sc->source->data[i];
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145 }
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146
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147 for ( /* void */ ; i < sc->source->len; i++, name.len++) {
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148 ch = sc->source->data[i];
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56
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149
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58
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150 if (ch == '}' && bracket) {
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151 i++;
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152 bracket = 0;
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153 break;
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154 }
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155
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156 if ((ch >= 'A' && ch <= 'Z')
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157 || (ch >= 'a' && ch <= 'z')
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158 || (ch >= '0' && ch <= '9')
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159 || ch == '_')
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160 {
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161 continue;
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162 }
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163
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164 break;
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165 }
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166
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167 if (bracket) {
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168 ngx_conf_log_error(NGX_LOG_EMERG, sc->cf, 0,
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169 "the closing bracket in \"%V\" "
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170 "variable is missing", &name);
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56
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171 return NGX_ERROR;
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172 }
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173
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58
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174 if (name.len == 0) {
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175 goto invalid_variable;
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176 }
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56
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177
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58
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178 sc->variables++;
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56
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179
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58
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180 index = ngx_http_get_variable_index(sc->cf, &name);
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181
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182 if (index == NGX_ERROR) {
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56
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183 return NGX_ERROR;
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184 }
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185
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122
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186 if (sc->flushes) {
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187 p = ngx_array_push(*sc->flushes);
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188 if (p == NULL) {
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189 return NGX_ERROR;
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190 }
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191
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192 *p = index;
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193 }
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194
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58
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195 var_code = ngx_http_script_add_code(*sc->lengths,
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196 sizeof(ngx_http_script_var_code_t),
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197 NULL);
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56
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198 if (var_code == NULL) {
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199 return NGX_ERROR;
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200 }
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201
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202 var_code->code = (ngx_http_script_code_pt)
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58
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203 ngx_http_script_copy_var_len_code;
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204 var_code->index = (uintptr_t) index;
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56
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205
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206
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58
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207 var_code = ngx_http_script_add_code(*sc->values,
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208 sizeof(ngx_http_script_var_code_t),
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209 &sc->main);
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56
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210 if (var_code == NULL) {
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211 return NGX_ERROR;
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212 }
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213
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58
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214 var_code->code = ngx_http_script_copy_var_code;
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215 var_code->index = (uintptr_t) index;
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216
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217 continue;
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218 }
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219
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58
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220 if (sc->source->data[i] == '?' && sc->compile_args) {
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221 sc->args = 1;
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222 sc->compile_args = 0;
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56
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223
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58
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224 code = ngx_http_script_add_code(*sc->values, sizeof(uintptr_t),
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225 &sc->main);
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226 if (code == NULL) {
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56
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227 return NGX_ERROR;
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228 }
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229
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58
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230 *code = (uintptr_t) ngx_http_script_start_args_code;
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231
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232 i++;
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233
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56
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234 continue;
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235 }
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236
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58
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237 name.data = &sc->source->data[i];
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238
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239 while (i < sc->source->len
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240 && sc->source->data[i] != '$'
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241 && !(sc->source->data[i] == '?' && sc->compile_args))
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242 {
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243 i++;
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244 name.len++;
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245 }
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246
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247 sc->size += name.len;
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248
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249 copy = ngx_http_script_add_code(*sc->lengths,
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250 sizeof(ngx_http_script_copy_code_t),
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251 NULL);
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252 if (copy == NULL) {
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56
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253 return NGX_ERROR;
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254 }
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58
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255
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256 copy->code = (ngx_http_script_code_pt) ngx_http_script_copy_len_code;
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257 copy->len = name.len;
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258
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259 size = (sizeof(ngx_http_script_copy_code_t) + name.len
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260 + sizeof(uintptr_t) - 1)
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261 & ~(sizeof(uintptr_t) - 1);
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56
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262
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58
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263 copy = ngx_http_script_add_code(*sc->values, size, &sc->main);
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264 if (copy == NULL) {
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265 return NGX_ERROR;
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266 }
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267
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268 copy->code = ngx_http_script_copy_code;
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269 copy->len = name.len;
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270
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271 ngx_memcpy((u_char *) copy + sizeof(ngx_http_script_copy_code_t),
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272 name.data, name.len);
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56
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273 }
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274
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58
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275 if (sc->complete_lengths) {
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276 code = ngx_http_script_add_code(*sc->lengths, sizeof(uintptr_t), NULL);
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277 if (code == NULL) {
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278 return NGX_ERROR;
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279 }
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56
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280
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58
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281 *code = (uintptr_t) NULL;
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56
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282 }
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283
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58
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284 if (sc->complete_values) {
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285 code = ngx_http_script_add_code(*sc->values, sizeof(uintptr_t),
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286 &sc->main);
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287 if (code == NULL) {
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288 return NGX_ERROR;
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289 }
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290
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291 *code = (uintptr_t) NULL;
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292 }
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56
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293
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294 return NGX_OK;
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58
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295
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296 invalid_variable:
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297
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298 ngx_conf_log_error(NGX_LOG_EMERG, sc->cf, 0, "invalid variable name");
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299
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300 return NGX_ERROR;
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56
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301 }
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302
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303
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172
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304 u_char *
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305 ngx_http_script_run(ngx_http_request_t *r, ngx_str_t *value,
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306 void *code_lengths, size_t len, void *code_values)
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307 {
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294
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308 ngx_uint_t i;
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309 ngx_http_script_code_pt code;
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310 ngx_http_script_len_code_pt lcode;
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311 ngx_http_script_engine_t e;
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312 ngx_http_core_main_conf_t *cmcf;
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313
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314 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
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315
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316 for (i = 0; i < cmcf->variables.nelts; i++) {
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340
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317 if (r->variables[i].no_cacheable) {
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294
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318 r->variables[i].valid = 0;
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319 r->variables[i].not_found = 0;
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320 }
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321 }
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172
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322
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323 ngx_memzero(&e, sizeof(ngx_http_script_engine_t));
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324
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325 e.ip = code_lengths;
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326 e.request = r;
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327 e.flushed = 1;
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328
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329 while (*(uintptr_t *) e.ip) {
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330 lcode = *(ngx_http_script_len_code_pt *) e.ip;
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331 len += lcode(&e);
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332 }
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333
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334
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335 value->len = len;
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336 value->data = ngx_palloc(r->pool, len);
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337 if (value->data == NULL) {
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338 return NULL;
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339 }
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340
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341 e.ip = code_values;
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342 e.pos = value->data;
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343
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344 while (*(uintptr_t *) e.ip) {
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345 code = *(ngx_http_script_code_pt *) e.ip;
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346 code((ngx_http_script_engine_t *) &e);
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347 }
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348
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349 return e.pos;
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350 }
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351
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352
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122
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353 void
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340
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354 ngx_http_script_flush_no_cacheable_variables(ngx_http_request_t *r,
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122
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355 ngx_array_t *indices)
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356 {
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357 ngx_uint_t n, *index;
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358
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359 if (indices) {
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360 index = indices->elts;
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361 for (n = 0; n < indices->nelts; n++) {
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340
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362 if (r->variables[index[n]].no_cacheable) {
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122
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363 r->variables[index[n]].valid = 0;
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364 r->variables[index[n]].not_found = 0;
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365 }
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366 }
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367 }
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368 }
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369
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370
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58
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371 void *
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56
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372 ngx_http_script_start_code(ngx_pool_t *pool, ngx_array_t **codes, size_t size)
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373 {
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374 if (*codes == NULL) {
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375 *codes = ngx_array_create(pool, 256, 1);
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376 if (*codes == NULL) {
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377 return NULL;
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378 }
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379 }
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380
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381 return ngx_array_push_n(*codes, size);
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382 }
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383
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58
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384
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385 void *
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386 ngx_http_script_add_code(ngx_array_t *codes, size_t size, void *code)
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387 {
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388 u_char *elts, **p;
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389 void *new;
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390
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391 elts = codes->elts;
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392
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393 new = ngx_array_push_n(codes, size);
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394 if (new == NULL) {
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395 return NGX_CONF_ERROR;
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396 }
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397
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398 if (code) {
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399 if (elts != codes->elts) {
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400 p = code;
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401 *p += (u_char *) codes->elts - elts;
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402 }
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403 }
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404
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405 return new;
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406 }
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56
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407
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408
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409 size_t
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58
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410 ngx_http_script_copy_len_code(ngx_http_script_engine_t *e)
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56
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411 {
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412 ngx_http_script_copy_code_t *code;
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413
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58
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414 code = (ngx_http_script_copy_code_t *) e->ip;
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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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56
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417
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418 return code->len;
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419 }
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420
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421
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422 void
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58
|
423 ngx_http_script_copy_code(ngx_http_script_engine_t *e)
|
|
56
|
424 {
|
|
|
425 ngx_http_script_copy_code_t *code;
|
|
|
426
|
|
58
|
427 code = (ngx_http_script_copy_code_t *) e->ip;
|
|
|
428
|
|
|
429 if (!e->skip) {
|
|
122
|
430 e->pos = ngx_copy(e->pos, e->ip + sizeof(ngx_http_script_copy_code_t),
|
|
|
431 code->len);
|
|
58
|
432 }
|
|
56
|
433
|
|
58
|
434 e->ip += sizeof(ngx_http_script_copy_code_t)
|
|
|
435 + ((code->len + sizeof(uintptr_t) - 1) & ~(sizeof(uintptr_t) - 1));
|
|
56
|
436
|
|
256
|
437 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
438 "http script copy: \"%V\"", &e->buf);
|
|
56
|
439 }
|
|
|
440
|
|
|
441
|
|
|
442 size_t
|
|
58
|
443 ngx_http_script_copy_var_len_code(ngx_http_script_engine_t *e)
|
|
56
|
444 {
|
|
|
445 ngx_http_variable_value_t *value;
|
|
|
446 ngx_http_script_var_code_t *code;
|
|
|
447
|
|
58
|
448 code = (ngx_http_script_var_code_t *) e->ip;
|
|
56
|
449
|
|
58
|
450 e->ip += sizeof(ngx_http_script_var_code_t);
|
|
56
|
451
|
|
122
|
452 if (e->flushed) {
|
|
|
453 value = ngx_http_get_indexed_variable(e->request, code->index);
|
|
56
|
454
|
|
122
|
455 } else {
|
|
|
456 value = ngx_http_get_flushed_variable(e->request, code->index);
|
|
|
457 }
|
|
|
458
|
|
|
459 if (value && !value->not_found) {
|
|
|
460 return value->len;
|
|
56
|
461 }
|
|
|
462
|
|
102
|
463 return 0;
|
|
56
|
464 }
|
|
|
465
|
|
|
466
|
|
|
467 void
|
|
58
|
468 ngx_http_script_copy_var_code(ngx_http_script_engine_t *e)
|
|
56
|
469 {
|
|
|
470 ngx_http_variable_value_t *value;
|
|
|
471 ngx_http_script_var_code_t *code;
|
|
|
472
|
|
58
|
473 code = (ngx_http_script_var_code_t *) e->ip;
|
|
|
474
|
|
|
475 e->ip += sizeof(ngx_http_script_var_code_t);
|
|
|
476
|
|
|
477 if (!e->skip) {
|
|
122
|
478
|
|
|
479 if (e->flushed) {
|
|
|
480 value = ngx_http_get_indexed_variable(e->request, code->index);
|
|
58
|
481
|
|
122
|
482 } else {
|
|
|
483 value = ngx_http_get_flushed_variable(e->request, code->index);
|
|
|
484 }
|
|
|
485
|
|
|
486 if (value && !value->not_found) {
|
|
|
487 e->pos = ngx_copy(e->pos, value->data, value->len);
|
|
58
|
488
|
|
256
|
489 ngx_log_debug1(NGX_LOG_DEBUG_HTTP,
|
|
|
490 e->request->connection->log, 0,
|
|
|
491 "http script var: \"%V\"", &e->buf);
|
|
58
|
492 }
|
|
|
493 }
|
|
|
494 }
|
|
|
495
|
|
|
496
|
|
|
497 size_t
|
|
|
498 ngx_http_script_copy_capture_len_code(ngx_http_script_engine_t *e)
|
|
|
499 {
|
|
|
500 ngx_http_script_copy_capture_code_t *code;
|
|
|
501
|
|
|
502 code = (ngx_http_script_copy_capture_code_t *) e->ip;
|
|
|
503
|
|
|
504 e->ip += sizeof(ngx_http_script_copy_capture_code_t);
|
|
|
505
|
|
64
|
506 if (code->n < e->ncaptures) {
|
|
|
507 if ((e->args || e->quote)
|
|
|
508 && (e->request->quoted_uri || e->request->plus_in_uri))
|
|
|
509 {
|
|
|
510 return e->captures[code->n + 1] - e->captures[code->n]
|
|
204
|
511 + 2 * ngx_escape_uri(NULL,
|
|
64
|
512 &e->line.data[e->captures[code->n]],
|
|
58
|
513 e->captures[code->n + 1] - e->captures[code->n],
|
|
|
514 NGX_ESCAPE_ARGS);
|
|
64
|
515 } else {
|
|
|
516 return e->captures[code->n + 1] - e->captures[code->n];
|
|
|
517 }
|
|
58
|
518 }
|
|
64
|
519
|
|
|
520 return 0;
|
|
58
|
521 }
|
|
|
522
|
|
|
523
|
|
|
524 void
|
|
|
525 ngx_http_script_copy_capture_code(ngx_http_script_engine_t *e)
|
|
|
526 {
|
|
|
527 ngx_http_script_copy_capture_code_t *code;
|
|
|
528
|
|
|
529 code = (ngx_http_script_copy_capture_code_t *) e->ip;
|
|
|
530
|
|
|
531 e->ip += sizeof(ngx_http_script_copy_capture_code_t);
|
|
56
|
532
|
|
64
|
533 if (code->n < e->ncaptures) {
|
|
|
534 if ((e->args || e->quote)
|
|
|
535 && (e->request->quoted_uri || e->request->plus_in_uri))
|
|
|
536 {
|
|
|
537 e->pos = (u_char *) ngx_escape_uri(e->pos,
|
|
|
538 &e->line.data[e->captures[code->n]],
|
|
58
|
539 e->captures[code->n + 1] - e->captures[code->n],
|
|
|
540 NGX_ESCAPE_ARGS);
|
|
64
|
541 } else {
|
|
122
|
542 e->pos = ngx_copy(e->pos,
|
|
|
543 &e->line.data[e->captures[code->n]],
|
|
|
544 e->captures[code->n + 1] - e->captures[code->n]);
|
|
64
|
545 }
|
|
58
|
546 }
|
|
|
547
|
|
|
548 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
549 "http script capture: \"%V\"", &e->buf);
|
|
|
550 }
|
|
|
551
|
|
|
552
|
|
|
553 void
|
|
|
554 ngx_http_script_start_args_code(ngx_http_script_engine_t *e)
|
|
|
555 {
|
|
|
556 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
557 "http script args");
|
|
126
|
558
|
|
58
|
559 e->args = e->pos;
|
|
|
560 e->ip += sizeof(uintptr_t);
|
|
|
561 }
|
|
|
562
|
|
|
563
|
|
66
|
564
|
|
|
565 #if (NGX_PCRE)
|
|
|
566
|
|
58
|
567 void
|
|
|
568 ngx_http_script_regex_start_code(ngx_http_script_engine_t *e)
|
|
|
569 {
|
|
|
570 size_t len;
|
|
|
571 ngx_int_t rc;
|
|
|
572 ngx_uint_t n;
|
|
|
573 ngx_http_request_t *r;
|
|
|
574 ngx_http_script_engine_t le;
|
|
|
575 ngx_http_script_len_code_pt lcode;
|
|
|
576 ngx_http_script_regex_code_t *code;
|
|
|
577
|
|
|
578 code = (ngx_http_script_regex_code_t *) e->ip;
|
|
|
579
|
|
|
580 r = e->request;
|
|
|
581
|
|
|
582 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
583 "http script regex: \"%V\"", &code->name);
|
|
|
584
|
|
|
585 if (code->uri) {
|
|
64
|
586 e->line = r->uri;
|
|
58
|
587 } else {
|
|
|
588 e->sp--;
|
|
122
|
589 e->line.len = e->sp->len;
|
|
|
590 e->line.data = e->sp->data;
|
|
58
|
591 }
|
|
56
|
592
|
|
64
|
593 rc = ngx_regex_exec(code->regex, &e->line, e->captures, code->ncaptures);
|
|
58
|
594
|
|
|
595 if (rc == NGX_REGEX_NO_MATCHED) {
|
|
|
596 if (e->log) {
|
|
|
597 ngx_log_error(NGX_LOG_NOTICE, r->connection->log, 0,
|
|
64
|
598 "\"%V\" does not match \"%V\"",
|
|
|
599 &code->name, &e->line);
|
|
58
|
600 }
|
|
|
601
|
|
64
|
602 e->ncaptures = 0;
|
|
|
603
|
|
58
|
604 if (code->test) {
|
|
180
|
605 if (code->negative_test) {
|
|
|
606 e->sp->len = 1;
|
|
|
607 e->sp->data = (u_char *) "1";
|
|
|
608
|
|
|
609 } else {
|
|
|
610 e->sp->len = 0;
|
|
|
611 e->sp->data = (u_char *) "";
|
|
|
612 }
|
|
|
613
|
|
58
|
614 e->sp++;
|
|
|
615
|
|
|
616 e->ip += sizeof(ngx_http_script_regex_code_t);
|
|
|
617 return;
|
|
|
618 }
|
|
|
619
|
|
|
620 e->ip += code->next;
|
|
|
621 return;
|
|
|
622 }
|
|
|
623
|
|
|
624 if (rc < 0) {
|
|
|
625 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
|
|
|
626 ngx_regex_exec_n " failed: %d on \"%V\" using \"%V\"",
|
|
64
|
627 rc, &e->line, &code->name);
|
|
58
|
628
|
|
|
629 e->ip = ngx_http_script_exit;
|
|
|
630 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
631 return;
|
|
|
632 }
|
|
|
633
|
|
|
634 if (e->log) {
|
|
|
635 ngx_log_error(NGX_LOG_NOTICE, r->connection->log, 0,
|
|
64
|
636 "\"%V\" matches \"%V\"", &code->name, &e->line);
|
|
58
|
637 }
|
|
|
638
|
|
64
|
639 e->ncaptures = code->ncaptures;
|
|
|
640
|
|
58
|
641 if (code->test) {
|
|
180
|
642 if (code->negative_test) {
|
|
|
643 e->sp->len = 0;
|
|
|
644 e->sp->data = (u_char *) "";
|
|
|
645
|
|
|
646 } else {
|
|
|
647 e->sp->len = 1;
|
|
|
648 e->sp->data = (u_char *) "1";
|
|
|
649 }
|
|
|
650
|
|
58
|
651 e->sp++;
|
|
|
652
|
|
|
653 e->ip += sizeof(ngx_http_script_regex_code_t);
|
|
|
654 return;
|
|
|
655 }
|
|
|
656
|
|
|
657 if (code->status) {
|
|
|
658 e->status = code->status;
|
|
56
|
659
|
|
58
|
660 if (!code->redirect) {
|
|
|
661 e->ip = ngx_http_script_exit;
|
|
|
662 return;
|
|
|
663 }
|
|
|
664 }
|
|
|
665
|
|
|
666 if (code->uri) {
|
|
|
667 r->internal = 1;
|
|
|
668 r->valid_unparsed_uri = 0;
|
|
|
669
|
|
|
670 if (code->break_cycle) {
|
|
|
671 r->valid_location = 0;
|
|
76
|
672 r->uri_changed = 0;
|
|
58
|
673
|
|
|
674 } else {
|
|
|
675 r->uri_changed = 1;
|
|
|
676 }
|
|
|
677 }
|
|
|
678
|
|
|
679 if (code->lengths == NULL) {
|
|
|
680 e->buf.len = code->size;
|
|
|
681
|
|
|
682 if (code->uri) {
|
|
|
683 if (rc && (r->quoted_uri || r->plus_in_uri)) {
|
|
|
684 e->buf.len += 2 * ngx_escape_uri(NULL, r->uri.data, r->uri.len,
|
|
|
685 NGX_ESCAPE_ARGS);
|
|
|
686 }
|
|
|
687 }
|
|
|
688
|
|
|
689 for (n = 1; n < (ngx_uint_t) rc; n++) {
|
|
|
690 e->buf.len += e->captures[2 * n + 1] - e->captures[2 * n];
|
|
|
691 }
|
|
|
692
|
|
|
693 } else {
|
|
|
694 ngx_memzero(&le, sizeof(ngx_http_script_engine_t));
|
|
|
695
|
|
|
696 le.ip = code->lengths->elts;
|
|
228
|
697 le.line = e->line;
|
|
58
|
698 le.request = r;
|
|
|
699 le.captures = e->captures;
|
|
64
|
700 le.ncaptures = e->ncaptures;
|
|
228
|
701 le.quote = code->redirect;
|
|
58
|
702
|
|
|
703 len = 1; /* reserve 1 byte for possible "?" */
|
|
|
704
|
|
|
705 while (*(uintptr_t *) le.ip) {
|
|
|
706 lcode = *(ngx_http_script_len_code_pt *) le.ip;
|
|
|
707 len += lcode(&le);
|
|
|
708 }
|
|
|
709
|
|
|
710 e->buf.len = len;
|
|
|
711 }
|
|
|
712
|
|
64
|
713 if (code->add_args && r->args.len) {
|
|
58
|
714 e->buf.len += r->args.len + 1;
|
|
|
715 }
|
|
|
716
|
|
|
717 e->buf.data = ngx_palloc(r->pool, e->buf.len);
|
|
|
718 if (e->buf.data == NULL) {
|
|
|
719 e->ip = ngx_http_script_exit;
|
|
|
720 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
56
|
721 return;
|
|
|
722 }
|
|
|
723
|
|
58
|
724 e->quote = code->redirect;
|
|
|
725
|
|
|
726 e->pos = e->buf.data;
|
|
|
727
|
|
|
728 e->ip += sizeof(ngx_http_script_regex_code_t);
|
|
|
729 }
|
|
|
730
|
|
|
731
|
|
|
732 void
|
|
|
733 ngx_http_script_regex_end_code(ngx_http_script_engine_t *e)
|
|
|
734 {
|
|
126
|
735 u_char *dst, *src;
|
|
58
|
736 ngx_http_request_t *r;
|
|
|
737 ngx_http_script_regex_end_code_t *code;
|
|
|
738
|
|
|
739 code = (ngx_http_script_regex_end_code_t *) e->ip;
|
|
|
740
|
|
|
741 r = e->request;
|
|
|
742
|
|
|
743 e->quote = 0;
|
|
|
744
|
|
|
745 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
746 "http script regex end");
|
|
|
747
|
|
|
748 if (code->redirect) {
|
|
|
749
|
|
126
|
750 dst = e->buf.data;
|
|
|
751 src = e->buf.data;
|
|
|
752
|
|
150
|
753 ngx_unescape_uri(&dst, &src, e->pos - e->buf.data, NGX_UNESCAPE_URI);
|
|
126
|
754
|
|
|
755 if (src < e->pos) {
|
|
|
756 dst = ngx_copy(dst, src, e->pos - src);
|
|
|
757 }
|
|
|
758
|
|
|
759 e->pos = dst;
|
|
|
760
|
|
|
761 if (code->add_args && r->args.len) {
|
|
58
|
762 *e->pos++ = (u_char) (code->args ? '&' : '?');
|
|
122
|
763 e->pos = ngx_copy(e->pos, r->args.data, r->args.len);
|
|
58
|
764 }
|
|
|
765
|
|
|
766 e->buf.len = e->pos - e->buf.data;
|
|
|
767
|
|
|
768 if (e->log) {
|
|
|
769 ngx_log_error(NGX_LOG_NOTICE, r->connection->log, 0,
|
|
|
770 "rewritten redirect: \"%V\"", &e->buf);
|
|
|
771 }
|
|
|
772
|
|
|
773 r->headers_out.location = ngx_list_push(&r->headers_out.headers);
|
|
|
774 if (r->headers_out.location == NULL) {
|
|
|
775 e->ip = ngx_http_script_exit;
|
|
|
776 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
777 return;
|
|
|
778 }
|
|
|
779
|
|
126
|
780 r->headers_out.location->hash = 1;
|
|
58
|
781 r->headers_out.location->key.len = sizeof("Location") - 1;
|
|
|
782 r->headers_out.location->key.data = (u_char *) "Location";
|
|
|
783 r->headers_out.location->value = e->buf;
|
|
|
784
|
|
|
785 e->ip += sizeof(ngx_http_script_regex_end_code_t);
|
|
|
786 return;
|
|
|
787 }
|
|
|
788
|
|
126
|
789 if (e->args) {
|
|
58
|
790 e->buf.len = e->args - e->buf.data;
|
|
|
791
|
|
|
792 if (code->add_args && r->args.len) {
|
|
|
793 *e->pos++ = '&';
|
|
122
|
794 e->pos = ngx_copy(e->pos, r->args.data, r->args.len);
|
|
58
|
795 }
|
|
|
796
|
|
|
797 r->args.len = e->pos - e->args;
|
|
|
798 r->args.data = e->args;
|
|
|
799
|
|
|
800 e->args = NULL;
|
|
|
801
|
|
|
802 } else {
|
|
|
803 e->buf.len = e->pos - e->buf.data;
|
|
222
|
804
|
|
|
805 if (!code->add_args) {
|
|
|
806 r->args.len = 0;
|
|
|
807 }
|
|
58
|
808 }
|
|
|
809
|
|
|
810 if (e->log) {
|
|
|
811 ngx_log_error(NGX_LOG_NOTICE, r->connection->log, 0,
|
|
|
812 "rewritten data: \"%V\", args: \"%V\"",
|
|
|
813 &e->buf, &r->args);
|
|
|
814 }
|
|
|
815
|
|
|
816 if (code->uri) {
|
|
|
817 r->uri = e->buf;
|
|
|
818
|
|
84
|
819 if (r->uri.len == 0) {
|
|
|
820 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
821 "the rewritten URI has a zero length");
|
|
|
822 e->ip = ngx_http_script_exit;
|
|
|
823 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
824 return;
|
|
|
825 }
|
|
|
826
|
|
58
|
827 if (ngx_http_set_exten(r) != NGX_OK) {
|
|
|
828 e->ip = ngx_http_script_exit;
|
|
|
829 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
830 return;
|
|
|
831 }
|
|
|
832 }
|
|
|
833
|
|
|
834 e->ip += sizeof(ngx_http_script_regex_end_code_t);
|
|
|
835 }
|
|
|
836
|
|
66
|
837 #endif
|
|
|
838
|
|
58
|
839
|
|
|
840 void
|
|
|
841 ngx_http_script_return_code(ngx_http_script_engine_t *e)
|
|
126
|
842 {
|
|
58
|
843 ngx_http_script_return_code_t *code;
|
|
126
|
844
|
|
58
|
845 code = (ngx_http_script_return_code_t *) e->ip;
|
|
|
846
|
|
|
847 e->status = code->status;
|
|
|
848
|
|
202
|
849 if (code->status == NGX_HTTP_NO_CONTENT) {
|
|
|
850 e->request->header_only = 1;
|
|
238
|
851 e->request->zero_body = 1;
|
|
202
|
852 }
|
|
|
853
|
|
58
|
854 e->ip += sizeof(ngx_http_script_return_code_t) - sizeof(uintptr_t);
|
|
56
|
855 }
|
|
58
|
856
|
|
|
857
|
|
|
858 void
|
|
76
|
859 ngx_http_script_break_code(ngx_http_script_engine_t *e)
|
|
|
860 {
|
|
|
861 e->request->uri_changed = 0;
|
|
|
862
|
|
|
863 e->ip = ngx_http_script_exit;
|
|
|
864 }
|
|
|
865
|
|
|
866
|
|
|
867 void
|
|
58
|
868 ngx_http_script_if_code(ngx_http_script_engine_t *e)
|
|
|
869 {
|
|
|
870 ngx_http_script_if_code_t *code;
|
|
|
871
|
|
|
872 code = (ngx_http_script_if_code_t *) e->ip;
|
|
|
873
|
|
|
874 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
875 "http script if");
|
|
|
876
|
|
|
877 e->sp--;
|
|
|
878
|
|
122
|
879 if (e->sp->len && e->sp->data[0] != '0') {
|
|
58
|
880 if (code->loc_conf) {
|
|
|
881 e->request->loc_conf = code->loc_conf;
|
|
84
|
882 ngx_http_update_location_config(e->request);
|
|
58
|
883 }
|
|
|
884
|
|
|
885 e->ip += sizeof(ngx_http_script_if_code_t);
|
|
|
886 return;
|
|
|
887 }
|
|
|
888
|
|
|
889 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
126
|
890 "http script if: false");
|
|
58
|
891
|
|
|
892 e->ip += code->next;
|
|
|
893 }
|
|
|
894
|
|
|
895
|
|
|
896 void
|
|
126
|
897 ngx_http_script_equal_code(ngx_http_script_engine_t *e)
|
|
|
898 {
|
|
|
899 ngx_http_variable_value_t *val, *res;
|
|
|
900
|
|
|
901 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
902 "http script equal");
|
|
|
903
|
|
|
904 e->sp--;
|
|
|
905 val = e->sp;
|
|
|
906 res = e->sp - 1;
|
|
|
907
|
|
|
908 e->ip += sizeof(uintptr_t);
|
|
|
909
|
|
|
910 if (val->len == res->len && ngx_strncmp(val->data, res->data, res->len)
|
|
|
911 == 0)
|
|
|
912 {
|
|
|
913 *res = ngx_http_variable_true_value;
|
|
|
914 return;
|
|
|
915 }
|
|
|
916
|
|
|
917 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
918 "http script equal: no");
|
|
|
919
|
|
|
920 *res = ngx_http_variable_null_value;
|
|
|
921 }
|
|
|
922
|
|
|
923
|
|
|
924 void
|
|
|
925 ngx_http_script_not_equal_code(ngx_http_script_engine_t *e)
|
|
|
926 {
|
|
|
927 ngx_http_variable_value_t *val, *res;
|
|
|
928
|
|
|
929 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
930 "http script not equal");
|
|
|
931
|
|
|
932 e->sp--;
|
|
|
933 val = e->sp;
|
|
|
934 res = e->sp - 1;
|
|
|
935
|
|
|
936 e->ip += sizeof(uintptr_t);
|
|
|
937
|
|
|
938 if (val->len == res->len && ngx_strncmp(val->data, res->data, res->len)
|
|
|
939 == 0)
|
|
|
940 {
|
|
|
941 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
942 "http script not equal: no");
|
|
|
943
|
|
|
944 *res = ngx_http_variable_null_value;
|
|
|
945 return;
|
|
|
946 }
|
|
|
947
|
|
|
948 *res = ngx_http_variable_true_value;
|
|
|
949 }
|
|
|
950
|
|
|
951
|
|
|
952 void
|
|
180
|
953 ngx_http_script_file_code(ngx_http_script_engine_t *e)
|
|
|
954 {
|
|
332
|
955 ngx_str_t path;
|
|
|
956 ngx_http_request_t *r;
|
|
|
957 ngx_open_file_info_t of;
|
|
|
958 ngx_http_core_loc_conf_t *clcf;
|
|
180
|
959 ngx_http_variable_value_t *value;
|
|
|
960 ngx_http_script_file_code_t *code;
|
|
|
961
|
|
|
962 value = e->sp - 1;
|
|
|
963
|
|
|
964 code = (ngx_http_script_file_code_t *) e->ip;
|
|
|
965 e->ip += sizeof(ngx_http_script_file_code_t);
|
|
|
966
|
|
332
|
967 path.len = value->len - 1;
|
|
|
968 path.data = value->data;
|
|
|
969
|
|
|
970 r = e->request;
|
|
|
971
|
|
|
972 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
973 "http script file op %p \"%V\"", code->op, &path);
|
|
|
974
|
|
|
975 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
180
|
976
|
|
332
|
977 of.test_dir = 0;
|
|
|
978 of.retest = clcf->open_file_cache_retest;
|
|
|
979 of.errors = clcf->open_file_cache_errors;
|
|
|
980 of.events = clcf->open_file_cache_events;
|
|
180
|
981
|
|
332
|
982 if (ngx_open_cached_file(clcf->open_file_cache, &path, &of, r->pool)
|
|
|
983 == NGX_ERROR)
|
|
|
984 {
|
|
|
985 if (of.err != NGX_ENOENT && of.err != NGX_ENOTDIR) {
|
|
|
986 ngx_log_error(NGX_LOG_CRIT, r->connection->log, of.err,
|
|
180
|
987 ngx_file_info_n " \"%s\" failed", value->data);
|
|
|
988 }
|
|
|
989
|
|
|
990 switch (code->op) {
|
|
220
|
991
|
|
180
|
992 case ngx_http_script_file_plain:
|
|
218
|
993 case ngx_http_script_file_dir:
|
|
|
994 case ngx_http_script_file_exists:
|
|
|
995 case ngx_http_script_file_exec:
|
|
180
|
996 goto false;
|
|
220
|
997
|
|
180
|
998 case ngx_http_script_file_not_plain:
|
|
218
|
999 case ngx_http_script_file_not_dir:
|
|
220
|
1000 case ngx_http_script_file_not_exists:
|
|
218
|
1001 case ngx_http_script_file_not_exec:
|
|
180
|
1002 goto true;
|
|
|
1003 }
|
|
|
1004
|
|
|
1005 goto false;
|
|
|
1006 }
|
|
|
1007
|
|
|
1008 switch (code->op) {
|
|
|
1009 case ngx_http_script_file_plain:
|
|
332
|
1010 if (of.is_file) {
|
|
180
|
1011 goto true;
|
|
|
1012 }
|
|
|
1013 goto false;
|
|
|
1014
|
|
|
1015 case ngx_http_script_file_not_plain:
|
|
332
|
1016 if (of.is_file) {
|
|
180
|
1017 goto false;
|
|
|
1018 }
|
|
|
1019 goto true;
|
|
218
|
1020
|
|
|
1021 case ngx_http_script_file_dir:
|
|
332
|
1022 if (of.is_dir) {
|
|
218
|
1023 goto true;
|
|
|
1024 }
|
|
|
1025 goto false;
|
|
|
1026
|
|
|
1027 case ngx_http_script_file_not_dir:
|
|
332
|
1028 if (of.is_dir) {
|
|
218
|
1029 goto false;
|
|
|
1030 }
|
|
|
1031 goto true;
|
|
|
1032
|
|
|
1033 case ngx_http_script_file_exists:
|
|
332
|
1034 if (of.is_file || of.is_dir || of.is_link) {
|
|
218
|
1035 goto true;
|
|
|
1036 }
|
|
|
1037 goto false;
|
|
|
1038
|
|
|
1039 case ngx_http_script_file_not_exists:
|
|
332
|
1040 if (of.is_file || of.is_dir || of.is_link) {
|
|
218
|
1041 goto false;
|
|
|
1042 }
|
|
|
1043 goto true;
|
|
|
1044
|
|
|
1045 case ngx_http_script_file_exec:
|
|
332
|
1046 if (of.is_exec) {
|
|
218
|
1047 goto true;
|
|
|
1048 }
|
|
|
1049 goto false;
|
|
|
1050
|
|
|
1051 case ngx_http_script_file_not_exec:
|
|
332
|
1052 if (of.is_exec) {
|
|
218
|
1053 goto false;
|
|
|
1054 }
|
|
|
1055 goto true;
|
|
180
|
1056 }
|
|
|
1057
|
|
|
1058 false:
|
|
|
1059
|
|
332
|
1060 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
180
|
1061 "http script file op false");
|
|
|
1062
|
|
|
1063 *value = ngx_http_variable_null_value;
|
|
|
1064 return;
|
|
|
1065
|
|
|
1066 true:
|
|
|
1067
|
|
|
1068 *value = ngx_http_variable_true_value;
|
|
|
1069 return;
|
|
|
1070 }
|
|
|
1071
|
|
|
1072
|
|
|
1073 void
|
|
64
|
1074 ngx_http_script_complex_value_code(ngx_http_script_engine_t *e)
|
|
|
1075 {
|
|
|
1076 size_t len;
|
|
|
1077 ngx_http_script_engine_t le;
|
|
|
1078 ngx_http_script_len_code_pt lcode;
|
|
|
1079 ngx_http_script_complex_value_code_t *code;
|
|
|
1080
|
|
|
1081 code = (ngx_http_script_complex_value_code_t *) e->ip;
|
|
|
1082
|
|
|
1083 e->ip += sizeof(ngx_http_script_complex_value_code_t);
|
|
|
1084
|
|
|
1085 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
1086 "http script complex value");
|
|
|
1087
|
|
|
1088 ngx_memzero(&le, sizeof(ngx_http_script_engine_t));
|
|
|
1089
|
|
|
1090 le.ip = code->lengths->elts;
|
|
204
|
1091 le.line = e->line;
|
|
64
|
1092 le.request = e->request;
|
|
|
1093 le.captures = e->captures;
|
|
|
1094 le.ncaptures = e->ncaptures;
|
|
204
|
1095 le.quote = e->quote;
|
|
64
|
1096
|
|
|
1097 for (len = 0; *(uintptr_t *) le.ip; len += lcode(&le)) {
|
|
|
1098 lcode = *(ngx_http_script_len_code_pt *) le.ip;
|
|
|
1099 }
|
|
|
1100
|
|
|
1101 e->buf.len = len;
|
|
|
1102 e->buf.data = ngx_palloc(e->request->pool, len);
|
|
|
1103 if (e->buf.data == NULL) {
|
|
|
1104 e->ip = ngx_http_script_exit;
|
|
|
1105 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
1106 return;
|
|
|
1107 }
|
|
|
1108
|
|
|
1109 e->pos = e->buf.data;
|
|
|
1110
|
|
126
|
1111 e->sp->len = e->buf.len;
|
|
122
|
1112 e->sp->data = e->buf.data;
|
|
64
|
1113 e->sp++;
|
|
|
1114 }
|
|
|
1115
|
|
|
1116
|
|
|
1117 void
|
|
58
|
1118 ngx_http_script_value_code(ngx_http_script_engine_t *e)
|
|
|
1119 {
|
|
|
1120 ngx_http_script_value_code_t *code;
|
|
|
1121
|
|
|
1122 code = (ngx_http_script_value_code_t *) e->ip;
|
|
|
1123
|
|
|
1124 e->ip += sizeof(ngx_http_script_value_code_t);
|
|
|
1125
|
|
122
|
1126 e->sp->len = code->text_len;
|
|
|
1127 e->sp->data = (u_char *) code->text_data;
|
|
126
|
1128
|
|
|
1129 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
340
|
1130 "http script value: \"%v\"", e->sp);
|
|
126
|
1131
|
|
58
|
1132 e->sp++;
|
|
|
1133 }
|
|
|
1134
|
|
|
1135
|
|
|
1136 void
|
|
|
1137 ngx_http_script_set_var_code(ngx_http_script_engine_t *e)
|
|
|
1138 {
|
|
|
1139 ngx_http_request_t *r;
|
|
|
1140 ngx_http_script_var_code_t *code;
|
|
|
1141
|
|
|
1142 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
1143 "http script set var");
|
|
|
1144
|
|
|
1145 code = (ngx_http_script_var_code_t *) e->ip;
|
|
|
1146
|
|
|
1147 e->ip += sizeof(ngx_http_script_var_code_t);
|
|
|
1148
|
|
|
1149 r = e->request;
|
|
|
1150
|
|
|
1151 e->sp--;
|
|
|
1152
|
|
122
|
1153 r->variables[code->index].len = e->sp->len;
|
|
|
1154 r->variables[code->index].valid = 1;
|
|
340
|
1155 r->variables[code->index].no_cacheable = 0;
|
|
122
|
1156 r->variables[code->index].not_found = 0;
|
|
|
1157 r->variables[code->index].data = e->sp->data;
|
|
58
|
1158 }
|
|
|
1159
|
|
|
1160
|
|
|
1161 void
|
|
186
|
1162 ngx_http_script_var_set_handler_code(ngx_http_script_engine_t *e)
|
|
|
1163 {
|
|
|
1164 ngx_http_script_var_handler_code_t *code;
|
|
|
1165
|
|
|
1166 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
1167 "http script set var handler");
|
|
|
1168
|
|
|
1169 code = (ngx_http_script_var_handler_code_t *) e->ip;
|
|
|
1170
|
|
|
1171 e->ip += sizeof(ngx_http_script_var_handler_code_t);
|
|
|
1172
|
|
|
1173 e->sp--;
|
|
|
1174
|
|
|
1175 code->handler(e->request, e->sp, code->data);
|
|
|
1176 }
|
|
|
1177
|
|
|
1178
|
|
|
1179 void
|
|
58
|
1180 ngx_http_script_var_code(ngx_http_script_engine_t *e)
|
|
|
1181 {
|
|
|
1182 ngx_http_variable_value_t *value;
|
|
|
1183 ngx_http_script_var_code_t *code;
|
|
|
1184
|
|
|
1185 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
1186 "http script var");
|
|
|
1187
|
|
|
1188 code = (ngx_http_script_var_code_t *) e->ip;
|
|
|
1189
|
|
|
1190 e->ip += sizeof(ngx_http_script_var_code_t);
|
|
|
1191
|
|
122
|
1192 value = ngx_http_get_flushed_variable(e->request, code->index);
|
|
58
|
1193
|
|
122
|
1194 if (value && !value->not_found) {
|
|
|
1195 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
328
|
1196 "http script var: \"%v\"", value);
|
|
122
|
1197
|
|
102
|
1198 *e->sp = *value;
|
|
58
|
1199 e->sp++;
|
|
|
1200
|
|
|
1201 return;
|
|
|
1202 }
|
|
|
1203
|
|
126
|
1204 *e->sp = ngx_http_variable_null_value;
|
|
58
|
1205 e->sp++;
|
|
|
1206 }
|
|
|
1207
|
|
|
1208
|
|
|
1209 void
|
|
|
1210 ngx_http_script_nop_code(ngx_http_script_engine_t *e)
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|
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1211 {
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|
|
1212 e->ip += sizeof(uintptr_t);
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|
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1213 }
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