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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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464
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12 static ngx_int_t ngx_http_script_init_arrays(ngx_http_script_compile_t *sc);
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13 static ngx_int_t ngx_http_script_done(ngx_http_script_compile_t *sc);
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14 static ngx_int_t ngx_http_script_add_copy_code(ngx_http_script_compile_t *sc,
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15 ngx_str_t *value, ngx_uint_t last);
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16 static ngx_int_t ngx_http_script_add_var_code(ngx_http_script_compile_t *sc,
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17 ngx_str_t *name);
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18 static ngx_int_t ngx_http_script_add_args_code(ngx_http_script_compile_t *sc);
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19 #if (NGX_PCRE)
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20 static ngx_int_t ngx_http_script_add_capture_code(ngx_http_script_compile_t *sc,
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21 ngx_uint_t n);
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22 #endif
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23 static ngx_int_t
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24 ngx_http_script_add_full_name_code(ngx_http_script_compile_t *sc);
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25 static size_t ngx_http_script_full_name_len_code(ngx_http_script_engine_t *e);
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26 static void ngx_http_script_full_name_code(ngx_http_script_engine_t *e);
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27
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28
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58
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29 #define ngx_http_script_exit (u_char *) &ngx_http_script_exit_code
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30
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31 static uintptr_t ngx_http_script_exit_code = (uintptr_t) NULL;
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32
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33
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464
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34 void
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468
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35 ngx_http_script_flush_complex_value(ngx_http_request_t *r,
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464
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36 ngx_http_complex_value_t *val)
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37 {
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38 ngx_uint_t *index;
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39
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40 index = val->flushes;
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41
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42 if (index) {
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43 while (*index != (ngx_uint_t) -1) {
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44
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45 if (r->variables[*index].no_cacheable) {
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46 r->variables[*index].valid = 0;
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47 r->variables[*index].not_found = 0;
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48 }
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49
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50 index++;
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51 }
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52 }
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53 }
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54
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55
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56 ngx_int_t
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57 ngx_http_complex_value(ngx_http_request_t *r, ngx_http_complex_value_t *val,
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58 ngx_str_t *value)
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59 {
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60 size_t len;
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61 ngx_http_script_code_pt code;
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62 ngx_http_script_len_code_pt lcode;
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63 ngx_http_script_engine_t e;
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64
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65 if (val->lengths == NULL) {
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66 *value = val->value;
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67 return NGX_OK;
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68 }
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69
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468
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70 ngx_http_script_flush_complex_value(r, val);
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464
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71
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72 ngx_memzero(&e, sizeof(ngx_http_script_engine_t));
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73
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74 e.ip = val->lengths;
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75 e.request = r;
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76 e.flushed = 1;
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77
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78 len = 0;
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79
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80 while (*(uintptr_t *) e.ip) {
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81 lcode = *(ngx_http_script_len_code_pt *) e.ip;
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82 len += lcode(&e);
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83 }
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84
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85 value->len = len;
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86 value->data = ngx_pnalloc(r->pool, len);
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87 if (value->data == NULL) {
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88 return NGX_ERROR;
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89 }
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90
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91 e.ip = val->values;
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92 e.pos = value->data;
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93 e.buf = *value;
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94
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95 while (*(uintptr_t *) e.ip) {
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96 code = *(ngx_http_script_code_pt *) e.ip;
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97 code((ngx_http_script_engine_t *) &e);
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98 }
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99
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100 *value = e.buf;
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101
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102 return NGX_OK;
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103 }
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104
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105
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106 ngx_int_t
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107 ngx_http_compile_complex_value(ngx_http_compile_complex_value_t *ccv)
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108 {
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109 ngx_str_t *v;
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110 ngx_uint_t i, n, nv, nc;
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111 ngx_array_t flushes, lengths, values, *pf, *pl, *pv;
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112 ngx_http_script_compile_t sc;
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113
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114 v = ccv->value;
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115
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116 if (v->len == 0) {
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117 ngx_conf_log_error(NGX_LOG_EMERG, ccv->cf, 0, "empty parameter");
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118 return NGX_ERROR;
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119 }
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120
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121 nv = 0;
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122 nc = 0;
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123
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124 for (i = 0; i < v->len; i++) {
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125 if (v->data[i] == '$') {
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126 if (v->data[i + 1] >= '1' && v->data[i + 1] <= '9') {
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127 nc++;
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128
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129 } else {
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130 nv++;
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131 }
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132 }
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133 }
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134
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135 if (v->data[0] != '$' && (ccv->conf_prefix || ccv->root_prefix)) {
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136
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137 if (ngx_conf_full_name(ccv->cf->cycle, v, ccv->conf_prefix) != NGX_OK) {
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138 return NGX_ERROR;
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139 }
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140
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141 ccv->conf_prefix = 0;
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142 ccv->root_prefix = 0;
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143 }
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144
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468
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145 ccv->complex_value->value = *v;
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146 ccv->complex_value->flushes = NULL;
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147 ccv->complex_value->lengths = NULL;
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148 ccv->complex_value->values = NULL;
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149
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464
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150 if (nv == 0 && nc == 0) {
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151 return NGX_OK;
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152 }
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153
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154 n = nv + 1;
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155
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156 if (ngx_array_init(&flushes, ccv->cf->pool, n, sizeof(ngx_uint_t))
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157 != NGX_OK)
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158 {
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159 return NGX_ERROR;
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160 }
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161
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162 n = nv * (2 * sizeof(ngx_http_script_copy_code_t)
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163 + sizeof(ngx_http_script_var_code_t))
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164 + sizeof(uintptr_t);
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165
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166 if (ngx_array_init(&lengths, ccv->cf->pool, n, 1) != NGX_OK) {
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167 return NGX_ERROR;
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168 }
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169
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170 n = (nv * (2 * sizeof(ngx_http_script_copy_code_t)
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171 + sizeof(ngx_http_script_var_code_t))
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172 + sizeof(uintptr_t)
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173 + v->len
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174 + sizeof(uintptr_t) - 1)
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175 & ~(sizeof(uintptr_t) - 1);
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176
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177 if (ngx_array_init(&values, ccv->cf->pool, n, 1) != NGX_OK) {
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178 return NGX_ERROR;
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179 }
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180
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181 pf = &flushes;
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182 pl = &lengths;
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183 pv = &values;
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184
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185 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t));
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186
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187 sc.cf = ccv->cf;
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188 sc.source = v;
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189 sc.flushes = &pf;
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190 sc.lengths = &pl;
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191 sc.values = &pv;
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192 sc.complete_lengths = 1;
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193 sc.complete_values = 1;
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194 sc.zero = ccv->zero;
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195 sc.conf_prefix = ccv->conf_prefix;
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196 sc.root_prefix = ccv->root_prefix;
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197
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198 if (ngx_http_script_compile(&sc) != NGX_OK) {
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199 return NGX_ERROR;
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200 }
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201
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202 if (flushes.nelts) {
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203 ccv->complex_value->flushes = flushes.elts;
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204 ccv->complex_value->flushes[flushes.nelts] = (ngx_uint_t) -1;
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205 }
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206
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207 ccv->complex_value->lengths = lengths.elts;
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208 ccv->complex_value->values = values.elts;
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209
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210 return NGX_OK;
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211 }
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212
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213
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596
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214 char *
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598
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215 ngx_http_set_complex_value_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
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596
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216 {
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217 char *p = conf;
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218
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219 ngx_str_t *value;
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220 ngx_http_complex_value_t **cv;
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221 ngx_http_compile_complex_value_t ccv;
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222
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223 cv = (ngx_http_complex_value_t **) (p + cmd->offset);
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224
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225 if (*cv != NULL) {
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226 return "duplicate";
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227 }
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228
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229 *cv = ngx_palloc(cf->pool, sizeof(ngx_http_complex_value_t));
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230 if (*cv == NULL) {
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231 return NGX_CONF_ERROR;
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232 }
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233
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234 value = cf->args->elts;
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235
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236 ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t));
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237
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238 ccv.cf = cf;
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239 ccv.value = &value[1];
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240 ccv.complex_value = *cv;
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241
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242 if (ngx_http_compile_complex_value(&ccv) != NGX_OK) {
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243 return NGX_CONF_ERROR;
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244 }
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245
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246 return NGX_CONF_OK;
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247 }
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248
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249
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588
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250 ngx_int_t
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251 ngx_http_test_predicates(ngx_http_request_t *r, ngx_array_t *predicates)
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252 {
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253 ngx_str_t val;
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254 ngx_uint_t i;
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255 ngx_http_complex_value_t *cv;
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256
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257 if (predicates == NULL) {
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258 return NGX_OK;
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259 }
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260
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261 cv = predicates->elts;
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262
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263 for (i = 0; i < predicates->nelts; i++) {
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264 if (ngx_http_complex_value(r, &cv[i], &val) != NGX_OK) {
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265 return NGX_ERROR;
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266 }
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267
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268 if (val.len && val.data[0] != '0') {
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269 return NGX_DECLINED;
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270 }
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271 }
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272
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273 return NGX_OK;
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274 }
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275
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276
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277 char *
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278 ngx_http_set_predicate_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
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279 {
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280 char *p = conf;
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281
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282 ngx_str_t *value;
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283 ngx_uint_t i;
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284 ngx_array_t **a;
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285 ngx_http_complex_value_t *cv;
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286 ngx_http_compile_complex_value_t ccv;
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287
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288 a = (ngx_array_t **) (p + cmd->offset);
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289
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290 if (*a == NGX_CONF_UNSET_PTR) {
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291 *a = ngx_array_create(cf->pool, 1, sizeof(ngx_http_complex_value_t));
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292 if (*a == NULL) {
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293 return NGX_CONF_ERROR;
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294 }
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295 }
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296
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297 value = cf->args->elts;
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298
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299 for (i = 1; i < cf->args->nelts; i++) {
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300 cv = ngx_array_push(*a);
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301 if (cv == NULL) {
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302 return NGX_CONF_ERROR;
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303 }
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304
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305 ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t));
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306
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307 ccv.cf = cf;
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308 ccv.value = &value[i];
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309 ccv.complex_value = cv;
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310
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311 if (ngx_http_compile_complex_value(&ccv) != NGX_OK) {
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312 return NGX_CONF_ERROR;
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313 }
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314 }
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315
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316 return NGX_CONF_OK;
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317 }
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318
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319
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58
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320 ngx_uint_t
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321 ngx_http_script_variables_count(ngx_str_t *value)
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56
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322 {
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58
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323 ngx_uint_t i, n;
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56
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324
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58
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325 for (n = 0, i = 0; i < value->len; i++) {
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326 if (value->data[i] == '$') {
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327 n++;
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328 }
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56
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329 }
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330
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58
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331 return n;
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332 }
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333
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334
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335 ngx_int_t
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336 ngx_http_script_compile(ngx_http_script_compile_t *sc)
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337 {
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464
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338 u_char ch;
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339 ngx_str_t name;
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340 ngx_uint_t i, bracket;
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122
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341
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464
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342 if (ngx_http_script_init_arrays(sc) != NGX_OK) {
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343 return NGX_ERROR;
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58
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344 }
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345
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346 for (i = 0; i < sc->source->len; /* void */ ) {
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347
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348 name.len = 0;
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349
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350 if (sc->source->data[i] == '$') {
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351
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352 if (++i == sc->source->len) {
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353 goto invalid_variable;
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354 }
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355
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456
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356 #if (NGX_PCRE)
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464
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357 {
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358 ngx_uint_t n;
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456
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359
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58
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360 if (sc->source->data[i] >= '1' && sc->source->data[i] <= '9') {
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361
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190
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362 n = sc->source->data[i] - '0';
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363
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364 if (sc->captures_mask & (1 << n)) {
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365 sc->dup_capture = 1;
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366 }
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367
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368 sc->captures_mask |= 1 << n;
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369
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464
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370 if (ngx_http_script_add_capture_code(sc, n) != NGX_OK) {
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58
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371 return NGX_ERROR;
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372 }
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373
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374 i++;
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375
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376 continue;
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377 }
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464
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378 }
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456
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379 #endif
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380
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58
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381 if (sc->source->data[i] == '{') {
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382 bracket = 1;
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383
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384 if (++i == sc->source->len) {
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385 goto invalid_variable;
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386 }
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387
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388 name.data = &sc->source->data[i];
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389
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390 } else {
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391 bracket = 0;
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392 name.data = &sc->source->data[i];
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393 }
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394
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395 for ( /* void */ ; i < sc->source->len; i++, name.len++) {
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396 ch = sc->source->data[i];
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56
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397
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58
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398 if (ch == '}' && bracket) {
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399 i++;
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400 bracket = 0;
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401 break;
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402 }
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403
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404 if ((ch >= 'A' && ch <= 'Z')
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405 || (ch >= 'a' && ch <= 'z')
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406 || (ch >= '0' && ch <= '9')
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407 || ch == '_')
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408 {
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409 continue;
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410 }
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411
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412 break;
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413 }
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414
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415 if (bracket) {
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416 ngx_conf_log_error(NGX_LOG_EMERG, sc->cf, 0,
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417 "the closing bracket in \"%V\" "
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|
|
418 "variable is missing", &name);
|
|
56
|
419 return NGX_ERROR;
|
|
|
420 }
|
|
|
421
|
|
58
|
422 if (name.len == 0) {
|
|
|
423 goto invalid_variable;
|
|
|
424 }
|
|
56
|
425
|
|
58
|
426 sc->variables++;
|
|
56
|
427
|
|
464
|
428 if (ngx_http_script_add_var_code(sc, &name) != NGX_OK) {
|
|
56
|
429 return NGX_ERROR;
|
|
|
430 }
|
|
|
431
|
|
58
|
432 continue;
|
|
|
433 }
|
|
56
|
434
|
|
58
|
435 if (sc->source->data[i] == '?' && sc->compile_args) {
|
|
|
436 sc->args = 1;
|
|
|
437 sc->compile_args = 0;
|
|
56
|
438
|
|
464
|
439 if (ngx_http_script_add_args_code(sc) != NGX_OK) {
|
|
366
|
440 return NGX_ERROR;
|
|
|
441 }
|
|
|
442
|
|
58
|
443 i++;
|
|
|
444
|
|
56
|
445 continue;
|
|
|
446 }
|
|
|
447
|
|
58
|
448 name.data = &sc->source->data[i];
|
|
|
449
|
|
444
|
450 while (i < sc->source->len) {
|
|
|
451
|
|
|
452 if (sc->source->data[i] == '$') {
|
|
|
453 break;
|
|
|
454 }
|
|
|
455
|
|
|
456 if (sc->source->data[i] == '?') {
|
|
|
457
|
|
|
458 sc->args = 1;
|
|
|
459
|
|
|
460 if (sc->compile_args) {
|
|
|
461 break;
|
|
|
462 }
|
|
|
463 }
|
|
|
464
|
|
58
|
465 i++;
|
|
|
466 name.len++;
|
|
|
467 }
|
|
|
468
|
|
|
469 sc->size += name.len;
|
|
|
470
|
|
464
|
471 if (ngx_http_script_add_copy_code(sc, &name, (i == sc->source->len))
|
|
|
472 != NGX_OK)
|
|
|
473 {
|
|
58
|
474 return NGX_ERROR;
|
|
|
475 }
|
|
56
|
476 }
|
|
|
477
|
|
464
|
478 return ngx_http_script_done(sc);
|
|
58
|
479
|
|
|
480 invalid_variable:
|
|
|
481
|
|
|
482 ngx_conf_log_error(NGX_LOG_EMERG, sc->cf, 0, "invalid variable name");
|
|
|
483
|
|
|
484 return NGX_ERROR;
|
|
56
|
485 }
|
|
|
486
|
|
|
487
|
|
172
|
488 u_char *
|
|
|
489 ngx_http_script_run(ngx_http_request_t *r, ngx_str_t *value,
|
|
|
490 void *code_lengths, size_t len, void *code_values)
|
|
|
491 {
|
|
294
|
492 ngx_uint_t i;
|
|
|
493 ngx_http_script_code_pt code;
|
|
|
494 ngx_http_script_len_code_pt lcode;
|
|
|
495 ngx_http_script_engine_t e;
|
|
|
496 ngx_http_core_main_conf_t *cmcf;
|
|
|
497
|
|
|
498 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
499
|
|
|
500 for (i = 0; i < cmcf->variables.nelts; i++) {
|
|
340
|
501 if (r->variables[i].no_cacheable) {
|
|
294
|
502 r->variables[i].valid = 0;
|
|
|
503 r->variables[i].not_found = 0;
|
|
|
504 }
|
|
|
505 }
|
|
172
|
506
|
|
|
507 ngx_memzero(&e, sizeof(ngx_http_script_engine_t));
|
|
|
508
|
|
|
509 e.ip = code_lengths;
|
|
|
510 e.request = r;
|
|
|
511 e.flushed = 1;
|
|
|
512
|
|
|
513 while (*(uintptr_t *) e.ip) {
|
|
|
514 lcode = *(ngx_http_script_len_code_pt *) e.ip;
|
|
|
515 len += lcode(&e);
|
|
|
516 }
|
|
|
517
|
|
|
518
|
|
|
519 value->len = len;
|
|
382
|
520 value->data = ngx_pnalloc(r->pool, len);
|
|
172
|
521 if (value->data == NULL) {
|
|
|
522 return NULL;
|
|
|
523 }
|
|
|
524
|
|
|
525 e.ip = code_values;
|
|
|
526 e.pos = value->data;
|
|
|
527
|
|
|
528 while (*(uintptr_t *) e.ip) {
|
|
|
529 code = *(ngx_http_script_code_pt *) e.ip;
|
|
|
530 code((ngx_http_script_engine_t *) &e);
|
|
|
531 }
|
|
|
532
|
|
|
533 return e.pos;
|
|
|
534 }
|
|
|
535
|
|
|
536
|
|
122
|
537 void
|
|
340
|
538 ngx_http_script_flush_no_cacheable_variables(ngx_http_request_t *r,
|
|
122
|
539 ngx_array_t *indices)
|
|
|
540 {
|
|
|
541 ngx_uint_t n, *index;
|
|
|
542
|
|
|
543 if (indices) {
|
|
|
544 index = indices->elts;
|
|
|
545 for (n = 0; n < indices->nelts; n++) {
|
|
340
|
546 if (r->variables[index[n]].no_cacheable) {
|
|
122
|
547 r->variables[index[n]].valid = 0;
|
|
|
548 r->variables[index[n]].not_found = 0;
|
|
|
549 }
|
|
|
550 }
|
|
|
551 }
|
|
|
552 }
|
|
|
553
|
|
|
554
|
|
464
|
555 static ngx_int_t
|
|
|
556 ngx_http_script_init_arrays(ngx_http_script_compile_t *sc)
|
|
|
557 {
|
|
|
558 ngx_uint_t n;
|
|
|
559
|
|
|
560 if (sc->flushes && *sc->flushes == NULL) {
|
|
|
561 n = sc->variables ? sc->variables : 1;
|
|
|
562 *sc->flushes = ngx_array_create(sc->cf->pool, n, sizeof(ngx_uint_t));
|
|
|
563 if (*sc->flushes == NULL) {
|
|
|
564 return NGX_ERROR;
|
|
|
565 }
|
|
|
566 }
|
|
|
567
|
|
|
568 if (*sc->lengths == NULL) {
|
|
|
569 n = sc->variables * (2 * sizeof(ngx_http_script_copy_code_t)
|
|
|
570 + sizeof(ngx_http_script_var_code_t))
|
|
|
571 + sizeof(uintptr_t);
|
|
|
572
|
|
|
573 *sc->lengths = ngx_array_create(sc->cf->pool, n, 1);
|
|
|
574 if (*sc->lengths == NULL) {
|
|
|
575 return NGX_ERROR;
|
|
|
576 }
|
|
|
577 }
|
|
|
578
|
|
|
579 if (*sc->values == NULL) {
|
|
|
580 n = (sc->variables * (2 * sizeof(ngx_http_script_copy_code_t)
|
|
|
581 + sizeof(ngx_http_script_var_code_t))
|
|
|
582 + sizeof(uintptr_t)
|
|
|
583 + sc->source->len
|
|
|
584 + sizeof(uintptr_t) - 1)
|
|
|
585 & ~(sizeof(uintptr_t) - 1);
|
|
|
586
|
|
|
587 *sc->values = ngx_array_create(sc->cf->pool, n, 1);
|
|
|
588 if (*sc->values == NULL) {
|
|
|
589 return NGX_ERROR;
|
|
|
590 }
|
|
|
591 }
|
|
|
592
|
|
|
593 sc->variables = 0;
|
|
|
594
|
|
|
595 return NGX_OK;
|
|
|
596 }
|
|
|
597
|
|
|
598
|
|
|
599 static ngx_int_t
|
|
|
600 ngx_http_script_done(ngx_http_script_compile_t *sc)
|
|
|
601 {
|
|
|
602 ngx_str_t zero;
|
|
|
603 uintptr_t *code;
|
|
|
604
|
|
|
605 if (sc->zero) {
|
|
|
606
|
|
|
607 zero.len = 1;
|
|
|
608 zero.data = (u_char *) "\0";
|
|
|
609
|
|
|
610 if (ngx_http_script_add_copy_code(sc, &zero, 0) != NGX_OK) {
|
|
|
611 return NGX_ERROR;
|
|
|
612 }
|
|
|
613 }
|
|
|
614
|
|
|
615 if (sc->conf_prefix || sc->root_prefix) {
|
|
|
616 if (ngx_http_script_add_full_name_code(sc) != NGX_OK) {
|
|
|
617 return NGX_ERROR;
|
|
|
618 }
|
|
|
619 }
|
|
|
620
|
|
|
621 if (sc->complete_lengths) {
|
|
|
622 code = ngx_http_script_add_code(*sc->lengths, sizeof(uintptr_t), NULL);
|
|
|
623 if (code == NULL) {
|
|
|
624 return NGX_ERROR;
|
|
|
625 }
|
|
|
626
|
|
|
627 *code = (uintptr_t) NULL;
|
|
|
628 }
|
|
|
629
|
|
|
630 if (sc->complete_values) {
|
|
|
631 code = ngx_http_script_add_code(*sc->values, sizeof(uintptr_t),
|
|
|
632 &sc->main);
|
|
|
633 if (code == NULL) {
|
|
|
634 return NGX_ERROR;
|
|
|
635 }
|
|
|
636
|
|
|
637 *code = (uintptr_t) NULL;
|
|
|
638 }
|
|
|
639
|
|
|
640 return NGX_OK;
|
|
|
641 }
|
|
|
642
|
|
|
643
|
|
58
|
644 void *
|
|
56
|
645 ngx_http_script_start_code(ngx_pool_t *pool, ngx_array_t **codes, size_t size)
|
|
|
646 {
|
|
|
647 if (*codes == NULL) {
|
|
|
648 *codes = ngx_array_create(pool, 256, 1);
|
|
|
649 if (*codes == NULL) {
|
|
|
650 return NULL;
|
|
|
651 }
|
|
|
652 }
|
|
|
653
|
|
|
654 return ngx_array_push_n(*codes, size);
|
|
|
655 }
|
|
|
656
|
|
58
|
657
|
|
|
658 void *
|
|
|
659 ngx_http_script_add_code(ngx_array_t *codes, size_t size, void *code)
|
|
|
660 {
|
|
|
661 u_char *elts, **p;
|
|
|
662 void *new;
|
|
|
663
|
|
|
664 elts = codes->elts;
|
|
|
665
|
|
|
666 new = ngx_array_push_n(codes, size);
|
|
|
667 if (new == NULL) {
|
|
496
|
668 return NULL;
|
|
58
|
669 }
|
|
|
670
|
|
|
671 if (code) {
|
|
|
672 if (elts != codes->elts) {
|
|
|
673 p = code;
|
|
|
674 *p += (u_char *) codes->elts - elts;
|
|
|
675 }
|
|
|
676 }
|
|
|
677
|
|
|
678 return new;
|
|
|
679 }
|
|
56
|
680
|
|
|
681
|
|
464
|
682 static ngx_int_t
|
|
|
683 ngx_http_script_add_copy_code(ngx_http_script_compile_t *sc, ngx_str_t *value,
|
|
|
684 ngx_uint_t last)
|
|
|
685 {
|
|
|
686 u_char *p;
|
|
|
687 size_t size, len, zero;
|
|
|
688 ngx_http_script_copy_code_t *code;
|
|
|
689
|
|
|
690 zero = (sc->zero && last);
|
|
|
691 len = value->len + zero;
|
|
|
692
|
|
|
693 code = ngx_http_script_add_code(*sc->lengths,
|
|
|
694 sizeof(ngx_http_script_copy_code_t), NULL);
|
|
|
695 if (code == NULL) {
|
|
|
696 return NGX_ERROR;
|
|
|
697 }
|
|
|
698
|
|
|
699 code->code = (ngx_http_script_code_pt) ngx_http_script_copy_len_code;
|
|
|
700 code->len = len;
|
|
|
701
|
|
|
702 size = (sizeof(ngx_http_script_copy_code_t) + len + sizeof(uintptr_t) - 1)
|
|
|
703 & ~(sizeof(uintptr_t) - 1);
|
|
|
704
|
|
|
705 code = ngx_http_script_add_code(*sc->values, size, &sc->main);
|
|
|
706 if (code == NULL) {
|
|
|
707 return NGX_ERROR;
|
|
|
708 }
|
|
|
709
|
|
|
710 code->code = ngx_http_script_copy_code;
|
|
|
711 code->len = len;
|
|
|
712
|
|
|
713 p = ngx_cpymem((u_char *) code + sizeof(ngx_http_script_copy_code_t),
|
|
|
714 value->data, value->len);
|
|
|
715
|
|
|
716 if (zero) {
|
|
|
717 *p = '\0';
|
|
|
718 sc->zero = 0;
|
|
|
719 }
|
|
|
720
|
|
|
721 return NGX_OK;
|
|
|
722 }
|
|
|
723
|
|
|
724
|
|
56
|
725 size_t
|
|
58
|
726 ngx_http_script_copy_len_code(ngx_http_script_engine_t *e)
|
|
56
|
727 {
|
|
|
728 ngx_http_script_copy_code_t *code;
|
|
|
729
|
|
58
|
730 code = (ngx_http_script_copy_code_t *) e->ip;
|
|
56
|
731
|
|
58
|
732 e->ip += sizeof(ngx_http_script_copy_code_t);
|
|
56
|
733
|
|
|
734 return code->len;
|
|
|
735 }
|
|
|
736
|
|
|
737
|
|
|
738 void
|
|
58
|
739 ngx_http_script_copy_code(ngx_http_script_engine_t *e)
|
|
56
|
740 {
|
|
430
|
741 u_char *p;
|
|
56
|
742 ngx_http_script_copy_code_t *code;
|
|
|
743
|
|
58
|
744 code = (ngx_http_script_copy_code_t *) e->ip;
|
|
|
745
|
|
430
|
746 p = e->pos;
|
|
|
747
|
|
58
|
748 if (!e->skip) {
|
|
430
|
749 e->pos = ngx_copy(p, e->ip + sizeof(ngx_http_script_copy_code_t),
|
|
122
|
750 code->len);
|
|
58
|
751 }
|
|
56
|
752
|
|
58
|
753 e->ip += sizeof(ngx_http_script_copy_code_t)
|
|
|
754 + ((code->len + sizeof(uintptr_t) - 1) & ~(sizeof(uintptr_t) - 1));
|
|
56
|
755
|
|
430
|
756 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
757 "http script copy: \"%*s\"", e->pos - p, p);
|
|
56
|
758 }
|
|
|
759
|
|
|
760
|
|
464
|
761 static ngx_int_t
|
|
|
762 ngx_http_script_add_var_code(ngx_http_script_compile_t *sc, ngx_str_t *name)
|
|
|
763 {
|
|
|
764 ngx_int_t index, *p;
|
|
|
765 ngx_http_script_var_code_t *code;
|
|
|
766
|
|
|
767 index = ngx_http_get_variable_index(sc->cf, name);
|
|
|
768
|
|
|
769 if (index == NGX_ERROR) {
|
|
|
770 return NGX_ERROR;
|
|
|
771 }
|
|
|
772
|
|
|
773 if (sc->flushes) {
|
|
|
774 p = ngx_array_push(*sc->flushes);
|
|
|
775 if (p == NULL) {
|
|
|
776 return NGX_ERROR;
|
|
|
777 }
|
|
|
778
|
|
|
779 *p = index;
|
|
|
780 }
|
|
|
781
|
|
|
782 code = ngx_http_script_add_code(*sc->lengths,
|
|
|
783 sizeof(ngx_http_script_var_code_t), NULL);
|
|
|
784 if (code == NULL) {
|
|
|
785 return NGX_ERROR;
|
|
|
786 }
|
|
|
787
|
|
|
788 code->code = (ngx_http_script_code_pt) ngx_http_script_copy_var_len_code;
|
|
|
789 code->index = (uintptr_t) index;
|
|
|
790
|
|
|
791 code = ngx_http_script_add_code(*sc->values,
|
|
|
792 sizeof(ngx_http_script_var_code_t),
|
|
|
793 &sc->main);
|
|
|
794 if (code == NULL) {
|
|
|
795 return NGX_ERROR;
|
|
|
796 }
|
|
|
797
|
|
|
798 code->code = ngx_http_script_copy_var_code;
|
|
|
799 code->index = (uintptr_t) index;
|
|
|
800
|
|
|
801 return NGX_OK;
|
|
|
802 }
|
|
|
803
|
|
|
804
|
|
56
|
805 size_t
|
|
58
|
806 ngx_http_script_copy_var_len_code(ngx_http_script_engine_t *e)
|
|
56
|
807 {
|
|
|
808 ngx_http_variable_value_t *value;
|
|
|
809 ngx_http_script_var_code_t *code;
|
|
|
810
|
|
58
|
811 code = (ngx_http_script_var_code_t *) e->ip;
|
|
56
|
812
|
|
58
|
813 e->ip += sizeof(ngx_http_script_var_code_t);
|
|
56
|
814
|
|
122
|
815 if (e->flushed) {
|
|
|
816 value = ngx_http_get_indexed_variable(e->request, code->index);
|
|
56
|
817
|
|
122
|
818 } else {
|
|
|
819 value = ngx_http_get_flushed_variable(e->request, code->index);
|
|
|
820 }
|
|
|
821
|
|
|
822 if (value && !value->not_found) {
|
|
|
823 return value->len;
|
|
56
|
824 }
|
|
|
825
|
|
102
|
826 return 0;
|
|
56
|
827 }
|
|
|
828
|
|
|
829
|
|
|
830 void
|
|
58
|
831 ngx_http_script_copy_var_code(ngx_http_script_engine_t *e)
|
|
56
|
832 {
|
|
430
|
833 u_char *p;
|
|
56
|
834 ngx_http_variable_value_t *value;
|
|
|
835 ngx_http_script_var_code_t *code;
|
|
|
836
|
|
58
|
837 code = (ngx_http_script_var_code_t *) e->ip;
|
|
|
838
|
|
|
839 e->ip += sizeof(ngx_http_script_var_code_t);
|
|
|
840
|
|
|
841 if (!e->skip) {
|
|
122
|
842
|
|
|
843 if (e->flushed) {
|
|
|
844 value = ngx_http_get_indexed_variable(e->request, code->index);
|
|
58
|
845
|
|
122
|
846 } else {
|
|
|
847 value = ngx_http_get_flushed_variable(e->request, code->index);
|
|
|
848 }
|
|
|
849
|
|
|
850 if (value && !value->not_found) {
|
|
430
|
851 p = e->pos;
|
|
|
852 e->pos = ngx_copy(p, value->data, value->len);
|
|
58
|
853
|
|
430
|
854 ngx_log_debug2(NGX_LOG_DEBUG_HTTP,
|
|
256
|
855 e->request->connection->log, 0,
|
|
430
|
856 "http script var: \"%*s\"", e->pos - p, p);
|
|
58
|
857 }
|
|
|
858 }
|
|
|
859 }
|
|
|
860
|
|
|
861
|
|
464
|
862 static ngx_int_t
|
|
|
863 ngx_http_script_add_args_code(ngx_http_script_compile_t *sc)
|
|
|
864 {
|
|
|
865 uintptr_t *code;
|
|
|
866
|
|
|
867 code = ngx_http_script_add_code(*sc->lengths, sizeof(uintptr_t), NULL);
|
|
|
868 if (code == NULL) {
|
|
|
869 return NGX_ERROR;
|
|
|
870 }
|
|
|
871
|
|
|
872 *code = (uintptr_t) ngx_http_script_mark_args_code;
|
|
|
873
|
|
|
874 code = ngx_http_script_add_code(*sc->values, sizeof(uintptr_t), &sc->main);
|
|
|
875 if (code == NULL) {
|
|
|
876 return NGX_ERROR;
|
|
|
877 }
|
|
|
878
|
|
|
879 *code = (uintptr_t) ngx_http_script_start_args_code;
|
|
|
880
|
|
|
881 return NGX_OK;
|
|
|
882 }
|
|
|
883
|
|
|
884
|
|
58
|
885 size_t
|
|
366
|
886 ngx_http_script_mark_args_code(ngx_http_script_engine_t *e)
|
|
|
887 {
|
|
|
888 e->is_args = 1;
|
|
|
889 e->ip += sizeof(uintptr_t);
|
|
|
890
|
|
|
891 return 1;
|
|
|
892 }
|
|
|
893
|
|
|
894
|
|
58
|
895 void
|
|
|
896 ngx_http_script_start_args_code(ngx_http_script_engine_t *e)
|
|
|
897 {
|
|
|
898 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
899 "http script args");
|
|
126
|
900
|
|
404
|
901 e->is_args = 1;
|
|
58
|
902 e->args = e->pos;
|
|
|
903 e->ip += sizeof(uintptr_t);
|
|
|
904 }
|
|
|
905
|
|
|
906
|
|
66
|
907 #if (NGX_PCRE)
|
|
|
908
|
|
58
|
909 void
|
|
|
910 ngx_http_script_regex_start_code(ngx_http_script_engine_t *e)
|
|
|
911 {
|
|
|
912 size_t len;
|
|
|
913 ngx_int_t rc;
|
|
|
914 ngx_uint_t n;
|
|
|
915 ngx_http_request_t *r;
|
|
|
916 ngx_http_script_engine_t le;
|
|
|
917 ngx_http_script_len_code_pt lcode;
|
|
|
918 ngx_http_script_regex_code_t *code;
|
|
|
919
|
|
|
920 code = (ngx_http_script_regex_code_t *) e->ip;
|
|
|
921
|
|
|
922 r = e->request;
|
|
|
923
|
|
|
924 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
925 "http script regex: \"%V\"", &code->name);
|
|
|
926
|
|
|
927 if (code->uri) {
|
|
64
|
928 e->line = r->uri;
|
|
58
|
929 } else {
|
|
|
930 e->sp--;
|
|
122
|
931 e->line.len = e->sp->len;
|
|
|
932 e->line.data = e->sp->data;
|
|
58
|
933 }
|
|
56
|
934
|
|
546
|
935 rc = ngx_http_regex_exec(r, code->regex, &e->line);
|
|
456
|
936
|
|
546
|
937 if (rc == NGX_DECLINED) {
|
|
430
|
938 if (e->log || (r->connection->log->log_level & NGX_LOG_DEBUG_HTTP)) {
|
|
58
|
939 ngx_log_error(NGX_LOG_NOTICE, r->connection->log, 0,
|
|
64
|
940 "\"%V\" does not match \"%V\"",
|
|
|
941 &code->name, &e->line);
|
|
58
|
942 }
|
|
|
943
|
|
456
|
944 r->ncaptures = 0;
|
|
64
|
945
|
|
58
|
946 if (code->test) {
|
|
180
|
947 if (code->negative_test) {
|
|
|
948 e->sp->len = 1;
|
|
|
949 e->sp->data = (u_char *) "1";
|
|
|
950
|
|
|
951 } else {
|
|
|
952 e->sp->len = 0;
|
|
|
953 e->sp->data = (u_char *) "";
|
|
|
954 }
|
|
|
955
|
|
58
|
956 e->sp++;
|
|
|
957
|
|
|
958 e->ip += sizeof(ngx_http_script_regex_code_t);
|
|
|
959 return;
|
|
|
960 }
|
|
|
961
|
|
|
962 e->ip += code->next;
|
|
|
963 return;
|
|
|
964 }
|
|
|
965
|
|
546
|
966 if (rc == NGX_ERROR) {
|
|
58
|
967 e->ip = ngx_http_script_exit;
|
|
|
968 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
969 return;
|
|
|
970 }
|
|
|
971
|
|
430
|
972 if (e->log || (r->connection->log->log_level & NGX_LOG_DEBUG_HTTP)) {
|
|
58
|
973 ngx_log_error(NGX_LOG_NOTICE, r->connection->log, 0,
|
|
64
|
974 "\"%V\" matches \"%V\"", &code->name, &e->line);
|
|
58
|
975 }
|
|
|
976
|
|
|
977 if (code->test) {
|
|
180
|
978 if (code->negative_test) {
|
|
|
979 e->sp->len = 0;
|
|
|
980 e->sp->data = (u_char *) "";
|
|
|
981
|
|
|
982 } else {
|
|
|
983 e->sp->len = 1;
|
|
|
984 e->sp->data = (u_char *) "1";
|
|
|
985 }
|
|
|
986
|
|
58
|
987 e->sp++;
|
|
|
988
|
|
|
989 e->ip += sizeof(ngx_http_script_regex_code_t);
|
|
|
990 return;
|
|
|
991 }
|
|
|
992
|
|
|
993 if (code->status) {
|
|
|
994 e->status = code->status;
|
|
56
|
995
|
|
58
|
996 if (!code->redirect) {
|
|
|
997 e->ip = ngx_http_script_exit;
|
|
|
998 return;
|
|
|
999 }
|
|
|
1000 }
|
|
|
1001
|
|
|
1002 if (code->uri) {
|
|
|
1003 r->internal = 1;
|
|
|
1004 r->valid_unparsed_uri = 0;
|
|
|
1005
|
|
|
1006 if (code->break_cycle) {
|
|
|
1007 r->valid_location = 0;
|
|
76
|
1008 r->uri_changed = 0;
|
|
58
|
1009
|
|
|
1010 } else {
|
|
|
1011 r->uri_changed = 1;
|
|
|
1012 }
|
|
|
1013 }
|
|
|
1014
|
|
|
1015 if (code->lengths == NULL) {
|
|
|
1016 e->buf.len = code->size;
|
|
|
1017
|
|
|
1018 if (code->uri) {
|
|
548
|
1019 if (r->ncaptures && (r->quoted_uri || r->plus_in_uri)) {
|
|
58
|
1020 e->buf.len += 2 * ngx_escape_uri(NULL, r->uri.data, r->uri.len,
|
|
|
1021 NGX_ESCAPE_ARGS);
|
|
|
1022 }
|
|
|
1023 }
|
|
|
1024
|
|
548
|
1025 for (n = 2; n < r->ncaptures; n += 2) {
|
|
|
1026 e->buf.len += r->captures[n + 1] - r->captures[n];
|
|
58
|
1027 }
|
|
|
1028
|
|
|
1029 } else {
|
|
|
1030 ngx_memzero(&le, sizeof(ngx_http_script_engine_t));
|
|
|
1031
|
|
|
1032 le.ip = code->lengths->elts;
|
|
228
|
1033 le.line = e->line;
|
|
58
|
1034 le.request = r;
|
|
228
|
1035 le.quote = code->redirect;
|
|
58
|
1036
|
|
366
|
1037 len = 0;
|
|
58
|
1038
|
|
|
1039 while (*(uintptr_t *) le.ip) {
|
|
|
1040 lcode = *(ngx_http_script_len_code_pt *) le.ip;
|
|
|
1041 len += lcode(&le);
|
|
|
1042 }
|
|
|
1043
|
|
|
1044 e->buf.len = len;
|
|
366
|
1045 e->is_args = le.is_args;
|
|
58
|
1046 }
|
|
|
1047
|
|
64
|
1048 if (code->add_args && r->args.len) {
|
|
58
|
1049 e->buf.len += r->args.len + 1;
|
|
|
1050 }
|
|
|
1051
|
|
382
|
1052 e->buf.data = ngx_pnalloc(r->pool, e->buf.len);
|
|
58
|
1053 if (e->buf.data == NULL) {
|
|
|
1054 e->ip = ngx_http_script_exit;
|
|
|
1055 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
56
|
1056 return;
|
|
|
1057 }
|
|
|
1058
|
|
58
|
1059 e->quote = code->redirect;
|
|
|
1060
|
|
|
1061 e->pos = e->buf.data;
|
|
|
1062
|
|
|
1063 e->ip += sizeof(ngx_http_script_regex_code_t);
|
|
|
1064 }
|
|
|
1065
|
|
|
1066
|
|
|
1067 void
|
|
|
1068 ngx_http_script_regex_end_code(ngx_http_script_engine_t *e)
|
|
|
1069 {
|
|
126
|
1070 u_char *dst, *src;
|
|
58
|
1071 ngx_http_request_t *r;
|
|
|
1072 ngx_http_script_regex_end_code_t *code;
|
|
|
1073
|
|
|
1074 code = (ngx_http_script_regex_end_code_t *) e->ip;
|
|
|
1075
|
|
|
1076 r = e->request;
|
|
|
1077
|
|
|
1078 e->quote = 0;
|
|
|
1079
|
|
|
1080 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1081 "http script regex end");
|
|
|
1082
|
|
|
1083 if (code->redirect) {
|
|
|
1084
|
|
126
|
1085 dst = e->buf.data;
|
|
|
1086 src = e->buf.data;
|
|
|
1087
|
|
342
|
1088 ngx_unescape_uri(&dst, &src, e->pos - e->buf.data,
|
|
|
1089 NGX_UNESCAPE_REDIRECT);
|
|
126
|
1090
|
|
|
1091 if (src < e->pos) {
|
|
620
|
1092 dst = ngx_movemem(dst, src, e->pos - src);
|
|
126
|
1093 }
|
|
|
1094
|
|
|
1095 e->pos = dst;
|
|
|
1096
|
|
|
1097 if (code->add_args && r->args.len) {
|
|
58
|
1098 *e->pos++ = (u_char) (code->args ? '&' : '?');
|
|
122
|
1099 e->pos = ngx_copy(e->pos, r->args.data, r->args.len);
|
|
58
|
1100 }
|
|
|
1101
|
|
|
1102 e->buf.len = e->pos - e->buf.data;
|
|
|
1103
|
|
430
|
1104 if (e->log || (r->connection->log->log_level & NGX_LOG_DEBUG_HTTP)) {
|
|
58
|
1105 ngx_log_error(NGX_LOG_NOTICE, r->connection->log, 0,
|
|
|
1106 "rewritten redirect: \"%V\"", &e->buf);
|
|
|
1107 }
|
|
|
1108
|
|
|
1109 r->headers_out.location = ngx_list_push(&r->headers_out.headers);
|
|
|
1110 if (r->headers_out.location == NULL) {
|
|
|
1111 e->ip = ngx_http_script_exit;
|
|
|
1112 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
1113 return;
|
|
|
1114 }
|
|
|
1115
|
|
126
|
1116 r->headers_out.location->hash = 1;
|
|
570
|
1117 ngx_str_set(&r->headers_out.location->key, "Location");
|
|
58
|
1118 r->headers_out.location->value = e->buf;
|
|
|
1119
|
|
|
1120 e->ip += sizeof(ngx_http_script_regex_end_code_t);
|
|
|
1121 return;
|
|
|
1122 }
|
|
|
1123
|
|
126
|
1124 if (e->args) {
|
|
58
|
1125 e->buf.len = e->args - e->buf.data;
|
|
|
1126
|
|
|
1127 if (code->add_args && r->args.len) {
|
|
|
1128 *e->pos++ = '&';
|
|
122
|
1129 e->pos = ngx_copy(e->pos, r->args.data, r->args.len);
|
|
58
|
1130 }
|
|
|
1131
|
|
|
1132 r->args.len = e->pos - e->args;
|
|
|
1133 r->args.data = e->args;
|
|
|
1134
|
|
|
1135 e->args = NULL;
|
|
|
1136
|
|
|
1137 } else {
|
|
|
1138 e->buf.len = e->pos - e->buf.data;
|
|
222
|
1139
|
|
|
1140 if (!code->add_args) {
|
|
|
1141 r->args.len = 0;
|
|
|
1142 }
|
|
58
|
1143 }
|
|
|
1144
|
|
430
|
1145 if (e->log || (r->connection->log->log_level & NGX_LOG_DEBUG_HTTP)) {
|
|
58
|
1146 ngx_log_error(NGX_LOG_NOTICE, r->connection->log, 0,
|
|
|
1147 "rewritten data: \"%V\", args: \"%V\"",
|
|
|
1148 &e->buf, &r->args);
|
|
|
1149 }
|
|
|
1150
|
|
|
1151 if (code->uri) {
|
|
|
1152 r->uri = e->buf;
|
|
|
1153
|
|
84
|
1154 if (r->uri.len == 0) {
|
|
|
1155 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1156 "the rewritten URI has a zero length");
|
|
|
1157 e->ip = ngx_http_script_exit;
|
|
|
1158 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
1159 return;
|
|
|
1160 }
|
|
|
1161
|
|
508
|
1162 ngx_http_set_exten(r);
|
|
58
|
1163 }
|
|
|
1164
|
|
|
1165 e->ip += sizeof(ngx_http_script_regex_end_code_t);
|
|
|
1166 }
|
|
|
1167
|
|
456
|
1168
|
|
464
|
1169 static ngx_int_t
|
|
|
1170 ngx_http_script_add_capture_code(ngx_http_script_compile_t *sc, ngx_uint_t n)
|
|
|
1171 {
|
|
|
1172 ngx_http_script_copy_capture_code_t *code;
|
|
|
1173
|
|
|
1174 code = ngx_http_script_add_code(*sc->lengths,
|
|
|
1175 sizeof(ngx_http_script_copy_capture_code_t),
|
|
|
1176 NULL);
|
|
|
1177 if (code == NULL) {
|
|
|
1178 return NGX_ERROR;
|
|
|
1179 }
|
|
|
1180
|
|
|
1181 code->code = (ngx_http_script_code_pt)
|
|
|
1182 ngx_http_script_copy_capture_len_code;
|
|
|
1183 code->n = 2 * n;
|
|
|
1184
|
|
|
1185
|
|
|
1186 code = ngx_http_script_add_code(*sc->values,
|
|
|
1187 sizeof(ngx_http_script_copy_capture_code_t),
|
|
|
1188 &sc->main);
|
|
|
1189 if (code == NULL) {
|
|
|
1190 return NGX_ERROR;
|
|
|
1191 }
|
|
|
1192
|
|
|
1193 code->code = ngx_http_script_copy_capture_code;
|
|
|
1194 code->n = 2 * n;
|
|
|
1195
|
|
|
1196 if (sc->ncaptures < n) {
|
|
|
1197 sc->ncaptures = n;
|
|
|
1198 }
|
|
|
1199
|
|
|
1200 return NGX_OK;
|
|
|
1201 }
|
|
|
1202
|
|
|
1203
|
|
456
|
1204 size_t
|
|
|
1205 ngx_http_script_copy_capture_len_code(ngx_http_script_engine_t *e)
|
|
|
1206 {
|
|
|
1207 int *cap;
|
|
|
1208 u_char *p;
|
|
|
1209 ngx_uint_t n;
|
|
|
1210 ngx_http_request_t *r;
|
|
|
1211 ngx_http_script_copy_capture_code_t *code;
|
|
|
1212
|
|
|
1213 r = e->request;
|
|
|
1214
|
|
|
1215 code = (ngx_http_script_copy_capture_code_t *) e->ip;
|
|
|
1216
|
|
|
1217 e->ip += sizeof(ngx_http_script_copy_capture_code_t);
|
|
|
1218
|
|
|
1219 n = code->n;
|
|
|
1220
|
|
|
1221 if (n < r->ncaptures) {
|
|
|
1222
|
|
|
1223 cap = r->captures;
|
|
|
1224
|
|
|
1225 if ((e->is_args || e->quote)
|
|
|
1226 && (e->request->quoted_uri || e->request->plus_in_uri))
|
|
|
1227 {
|
|
|
1228 p = r->captures_data;
|
|
|
1229
|
|
|
1230 return cap[n + 1] - cap[n]
|
|
|
1231 + 2 * ngx_escape_uri(NULL, &p[cap[n]], cap[n + 1] - cap[n],
|
|
|
1232 NGX_ESCAPE_ARGS);
|
|
|
1233 } else {
|
|
|
1234 return cap[n + 1] - cap[n];
|
|
|
1235 }
|
|
|
1236 }
|
|
|
1237
|
|
|
1238 return 0;
|
|
|
1239 }
|
|
|
1240
|
|
|
1241
|
|
|
1242 void
|
|
|
1243 ngx_http_script_copy_capture_code(ngx_http_script_engine_t *e)
|
|
|
1244 {
|
|
|
1245 int *cap;
|
|
|
1246 u_char *p, *pos;
|
|
|
1247 ngx_uint_t n;
|
|
|
1248 ngx_http_request_t *r;
|
|
|
1249 ngx_http_script_copy_capture_code_t *code;
|
|
|
1250
|
|
|
1251 r = e->request;
|
|
|
1252
|
|
|
1253 code = (ngx_http_script_copy_capture_code_t *) e->ip;
|
|
|
1254
|
|
|
1255 e->ip += sizeof(ngx_http_script_copy_capture_code_t);
|
|
|
1256
|
|
|
1257 n = code->n;
|
|
|
1258
|
|
|
1259 pos = e->pos;
|
|
|
1260
|
|
|
1261 if (n < r->ncaptures) {
|
|
|
1262
|
|
|
1263 cap = r->captures;
|
|
|
1264 p = r->captures_data;
|
|
|
1265
|
|
|
1266 if ((e->is_args || e->quote)
|
|
|
1267 && (e->request->quoted_uri || e->request->plus_in_uri))
|
|
|
1268 {
|
|
|
1269 e->pos = (u_char *) ngx_escape_uri(pos, &p[cap[n]],
|
|
|
1270 cap[n + 1] - cap[n],
|
|
|
1271 NGX_ESCAPE_ARGS);
|
|
|
1272 } else {
|
|
|
1273 e->pos = ngx_copy(pos, &p[cap[n]], cap[n + 1] - cap[n]);
|
|
|
1274 }
|
|
|
1275 }
|
|
|
1276
|
|
|
1277 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
1278 "http script capture: \"%*s\"", e->pos - pos, pos);
|
|
|
1279 }
|
|
|
1280
|
|
66
|
1281 #endif
|
|
|
1282
|
|
58
|
1283
|
|
464
|
1284 static ngx_int_t
|
|
|
1285 ngx_http_script_add_full_name_code(ngx_http_script_compile_t *sc)
|
|
|
1286 {
|
|
|
1287 ngx_http_script_full_name_code_t *code;
|
|
|
1288
|
|
|
1289 code = ngx_http_script_add_code(*sc->lengths,
|
|
|
1290 sizeof(ngx_http_script_full_name_code_t),
|
|
|
1291 NULL);
|
|
|
1292 if (code == NULL) {
|
|
|
1293 return NGX_ERROR;
|
|
|
1294 }
|
|
|
1295
|
|
|
1296 code->code = (ngx_http_script_code_pt) ngx_http_script_full_name_len_code;
|
|
482
|
1297 code->conf_prefix = sc->conf_prefix;
|
|
464
|
1298
|
|
|
1299 code = ngx_http_script_add_code(*sc->values,
|
|
|
1300 sizeof(ngx_http_script_full_name_code_t),
|
|
|
1301 &sc->main);
|
|
|
1302 if (code == NULL) {
|
|
|
1303 return NGX_ERROR;
|
|
|
1304 }
|
|
|
1305
|
|
|
1306 code->code = ngx_http_script_full_name_code;
|
|
482
|
1307 code->conf_prefix = sc->conf_prefix;
|
|
464
|
1308
|
|
|
1309 return NGX_OK;
|
|
|
1310 }
|
|
|
1311
|
|
|
1312
|
|
|
1313 static size_t
|
|
|
1314 ngx_http_script_full_name_len_code(ngx_http_script_engine_t *e)
|
|
|
1315 {
|
|
|
1316 ngx_http_script_full_name_code_t *code;
|
|
|
1317
|
|
|
1318 code = (ngx_http_script_full_name_code_t *) e->ip;
|
|
|
1319
|
|
|
1320 e->ip += sizeof(ngx_http_script_full_name_code_t);
|
|
|
1321
|
|
482
|
1322 return code->conf_prefix ? ngx_cycle->conf_prefix.len:
|
|
|
1323 ngx_cycle->prefix.len;
|
|
464
|
1324 }
|
|
|
1325
|
|
|
1326
|
|
|
1327 static void
|
|
|
1328 ngx_http_script_full_name_code(ngx_http_script_engine_t *e)
|
|
|
1329 {
|
|
|
1330 ngx_http_script_full_name_code_t *code;
|
|
|
1331
|
|
|
1332 ngx_str_t value;
|
|
|
1333
|
|
|
1334 code = (ngx_http_script_full_name_code_t *) e->ip;
|
|
|
1335
|
|
|
1336 value.data = e->buf.data;
|
|
|
1337 value.len = e->pos - e->buf.data;
|
|
|
1338
|
|
482
|
1339 if (ngx_conf_full_name((ngx_cycle_t *) ngx_cycle, &value, code->conf_prefix)
|
|
464
|
1340 != NGX_OK)
|
|
|
1341 {
|
|
|
1342 e->ip = ngx_http_script_exit;
|
|
|
1343 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
1344 return;
|
|
|
1345 }
|
|
|
1346
|
|
|
1347 e->buf = value;
|
|
|
1348
|
|
|
1349 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
1350 "http script fullname: \"%V\"", &value);
|
|
|
1351
|
|
|
1352 e->ip += sizeof(ngx_http_script_full_name_code_t);
|
|
|
1353 }
|
|
|
1354
|
|
|
1355
|
|
58
|
1356 void
|
|
|
1357 ngx_http_script_return_code(ngx_http_script_engine_t *e)
|
|
126
|
1358 {
|
|
58
|
1359 ngx_http_script_return_code_t *code;
|
|
126
|
1360
|
|
58
|
1361 code = (ngx_http_script_return_code_t *) e->ip;
|
|
|
1362
|
|
580
|
1363 if (code->status < NGX_HTTP_BAD_REQUEST
|
|
|
1364 || code->text.value.len
|
|
|
1365 || code->text.lengths)
|
|
|
1366 {
|
|
|
1367 e->status = ngx_http_send_response(e->request, code->status, NULL,
|
|
|
1368 &code->text);
|
|
|
1369 } else {
|
|
|
1370 e->status = code->status;
|
|
202
|
1371 }
|
|
|
1372
|
|
580
|
1373 e->ip = ngx_http_script_exit;
|
|
56
|
1374 }
|
|
58
|
1375
|
|
|
1376
|
|
|
1377 void
|
|
76
|
1378 ngx_http_script_break_code(ngx_http_script_engine_t *e)
|
|
|
1379 {
|
|
|
1380 e->request->uri_changed = 0;
|
|
|
1381
|
|
|
1382 e->ip = ngx_http_script_exit;
|
|
|
1383 }
|
|
|
1384
|
|
|
1385
|
|
|
1386 void
|
|
58
|
1387 ngx_http_script_if_code(ngx_http_script_engine_t *e)
|
|
|
1388 {
|
|
|
1389 ngx_http_script_if_code_t *code;
|
|
|
1390
|
|
|
1391 code = (ngx_http_script_if_code_t *) e->ip;
|
|
|
1392
|
|
|
1393 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
1394 "http script if");
|
|
|
1395
|
|
|
1396 e->sp--;
|
|
|
1397
|
|
122
|
1398 if (e->sp->len && e->sp->data[0] != '0') {
|
|
58
|
1399 if (code->loc_conf) {
|
|
|
1400 e->request->loc_conf = code->loc_conf;
|
|
84
|
1401 ngx_http_update_location_config(e->request);
|
|
58
|
1402 }
|
|
|
1403
|
|
|
1404 e->ip += sizeof(ngx_http_script_if_code_t);
|
|
|
1405 return;
|
|
|
1406 }
|
|
|
1407
|
|
|
1408 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
126
|
1409 "http script if: false");
|
|
58
|
1410
|
|
|
1411 e->ip += code->next;
|
|
|
1412 }
|
|
|
1413
|
|
|
1414
|
|
|
1415 void
|
|
126
|
1416 ngx_http_script_equal_code(ngx_http_script_engine_t *e)
|
|
|
1417 {
|
|
|
1418 ngx_http_variable_value_t *val, *res;
|
|
|
1419
|
|
|
1420 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
1421 "http script equal");
|
|
|
1422
|
|
|
1423 e->sp--;
|
|
|
1424 val = e->sp;
|
|
|
1425 res = e->sp - 1;
|
|
|
1426
|
|
|
1427 e->ip += sizeof(uintptr_t);
|
|
|
1428
|
|
430
|
1429 if (val->len == res->len
|
|
|
1430 && ngx_strncmp(val->data, res->data, res->len) == 0)
|
|
126
|
1431 {
|
|
|
1432 *res = ngx_http_variable_true_value;
|
|
|
1433 return;
|
|
|
1434 }
|
|
|
1435
|
|
|
1436 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
1437 "http script equal: no");
|
|
|
1438
|
|
|
1439 *res = ngx_http_variable_null_value;
|
|
|
1440 }
|
|
|
1441
|
|
|
1442
|
|
|
1443 void
|
|
|
1444 ngx_http_script_not_equal_code(ngx_http_script_engine_t *e)
|
|
|
1445 {
|
|
|
1446 ngx_http_variable_value_t *val, *res;
|
|
|
1447
|
|
|
1448 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
1449 "http script not equal");
|
|
|
1450
|
|
|
1451 e->sp--;
|
|
|
1452 val = e->sp;
|
|
|
1453 res = e->sp - 1;
|
|
|
1454
|
|
|
1455 e->ip += sizeof(uintptr_t);
|
|
|
1456
|
|
430
|
1457 if (val->len == res->len
|
|
|
1458 && ngx_strncmp(val->data, res->data, res->len) == 0)
|
|
126
|
1459 {
|
|
|
1460 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
1461 "http script not equal: no");
|
|
|
1462
|
|
|
1463 *res = ngx_http_variable_null_value;
|
|
|
1464 return;
|
|
|
1465 }
|
|
|
1466
|
|
|
1467 *res = ngx_http_variable_true_value;
|
|
|
1468 }
|
|
|
1469
|
|
|
1470
|
|
|
1471 void
|
|
180
|
1472 ngx_http_script_file_code(ngx_http_script_engine_t *e)
|
|
|
1473 {
|
|
332
|
1474 ngx_str_t path;
|
|
|
1475 ngx_http_request_t *r;
|
|
|
1476 ngx_open_file_info_t of;
|
|
|
1477 ngx_http_core_loc_conf_t *clcf;
|
|
180
|
1478 ngx_http_variable_value_t *value;
|
|
|
1479 ngx_http_script_file_code_t *code;
|
|
|
1480
|
|
|
1481 value = e->sp - 1;
|
|
|
1482
|
|
|
1483 code = (ngx_http_script_file_code_t *) e->ip;
|
|
|
1484 e->ip += sizeof(ngx_http_script_file_code_t);
|
|
|
1485
|
|
332
|
1486 path.len = value->len - 1;
|
|
|
1487 path.data = value->data;
|
|
|
1488
|
|
|
1489 r = e->request;
|
|
|
1490
|
|
|
1491 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1492 "http script file op %p \"%V\"", code->op, &path);
|
|
|
1493
|
|
|
1494 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
180
|
1495
|
|
384
|
1496 ngx_memzero(&of, sizeof(ngx_open_file_info_t));
|
|
|
1497
|
|
532
|
1498 of.read_ahead = clcf->read_ahead;
|
|
390
|
1499 of.directio = clcf->directio;
|
|
358
|
1500 of.valid = clcf->open_file_cache_valid;
|
|
|
1501 of.min_uses = clcf->open_file_cache_min_uses;
|
|
482
|
1502 of.test_only = 1;
|
|
332
|
1503 of.errors = clcf->open_file_cache_errors;
|
|
|
1504 of.events = clcf->open_file_cache_events;
|
|
180
|
1505
|
|
332
|
1506 if (ngx_open_cached_file(clcf->open_file_cache, &path, &of, r->pool)
|
|
362
|
1507 != NGX_OK)
|
|
332
|
1508 {
|
|
530
|
1509 if (of.err != NGX_ENOENT
|
|
|
1510 && of.err != NGX_ENOTDIR
|
|
|
1511 && of.err != NGX_ENAMETOOLONG)
|
|
|
1512 {
|
|
332
|
1513 ngx_log_error(NGX_LOG_CRIT, r->connection->log, of.err,
|
|
482
|
1514 "%s \"%s\" failed", of.failed, value->data);
|
|
180
|
1515 }
|
|
|
1516
|
|
|
1517 switch (code->op) {
|
|
220
|
1518
|
|
180
|
1519 case ngx_http_script_file_plain:
|
|
218
|
1520 case ngx_http_script_file_dir:
|
|
|
1521 case ngx_http_script_file_exists:
|
|
|
1522 case ngx_http_script_file_exec:
|
|
392
|
1523 goto false_value;
|
|
220
|
1524
|
|
180
|
1525 case ngx_http_script_file_not_plain:
|
|
218
|
1526 case ngx_http_script_file_not_dir:
|
|
220
|
1527 case ngx_http_script_file_not_exists:
|
|
218
|
1528 case ngx_http_script_file_not_exec:
|
|
392
|
1529 goto true_value;
|
|
180
|
1530 }
|
|
|
1531
|
|
392
|
1532 goto false_value;
|
|
180
|
1533 }
|
|
|
1534
|
|
|
1535 switch (code->op) {
|
|
|
1536 case ngx_http_script_file_plain:
|
|
332
|
1537 if (of.is_file) {
|
|
392
|
1538 goto true_value;
|
|
180
|
1539 }
|
|
392
|
1540 goto false_value;
|
|
180
|
1541
|
|
|
1542 case ngx_http_script_file_not_plain:
|
|
332
|
1543 if (of.is_file) {
|
|
392
|
1544 goto false_value;
|
|
180
|
1545 }
|
|
392
|
1546 goto true_value;
|
|
218
|
1547
|
|
|
1548 case ngx_http_script_file_dir:
|
|
332
|
1549 if (of.is_dir) {
|
|
392
|
1550 goto true_value;
|
|
218
|
1551 }
|
|
392
|
1552 goto false_value;
|
|
218
|
1553
|
|
|
1554 case ngx_http_script_file_not_dir:
|
|
332
|
1555 if (of.is_dir) {
|
|
392
|
1556 goto false_value;
|
|
218
|
1557 }
|
|
392
|
1558 goto true_value;
|
|
218
|
1559
|
|
|
1560 case ngx_http_script_file_exists:
|
|
332
|
1561 if (of.is_file || of.is_dir || of.is_link) {
|
|
392
|
1562 goto true_value;
|
|
218
|
1563 }
|
|
392
|
1564 goto false_value;
|
|
218
|
1565
|
|
|
1566 case ngx_http_script_file_not_exists:
|
|
332
|
1567 if (of.is_file || of.is_dir || of.is_link) {
|
|
392
|
1568 goto false_value;
|
|
218
|
1569 }
|
|
392
|
1570 goto true_value;
|
|
218
|
1571
|
|
|
1572 case ngx_http_script_file_exec:
|
|
332
|
1573 if (of.is_exec) {
|
|
392
|
1574 goto true_value;
|
|
218
|
1575 }
|
|
392
|
1576 goto false_value;
|
|
218
|
1577
|
|
|
1578 case ngx_http_script_file_not_exec:
|
|
332
|
1579 if (of.is_exec) {
|
|
392
|
1580 goto false_value;
|
|
218
|
1581 }
|
|
392
|
1582 goto true_value;
|
|
180
|
1583 }
|
|
|
1584
|
|
392
|
1585 false_value:
|
|
180
|
1586
|
|
332
|
1587 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
180
|
1588 "http script file op false");
|
|
|
1589
|
|
|
1590 *value = ngx_http_variable_null_value;
|
|
|
1591 return;
|
|
|
1592
|
|
392
|
1593 true_value:
|
|
180
|
1594
|
|
|
1595 *value = ngx_http_variable_true_value;
|
|
|
1596 return;
|
|
|
1597 }
|
|
|
1598
|
|
|
1599
|
|
|
1600 void
|
|
64
|
1601 ngx_http_script_complex_value_code(ngx_http_script_engine_t *e)
|
|
|
1602 {
|
|
|
1603 size_t len;
|
|
|
1604 ngx_http_script_engine_t le;
|
|
|
1605 ngx_http_script_len_code_pt lcode;
|
|
|
1606 ngx_http_script_complex_value_code_t *code;
|
|
|
1607
|
|
|
1608 code = (ngx_http_script_complex_value_code_t *) e->ip;
|
|
|
1609
|
|
|
1610 e->ip += sizeof(ngx_http_script_complex_value_code_t);
|
|
|
1611
|
|
|
1612 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
1613 "http script complex value");
|
|
|
1614
|
|
|
1615 ngx_memzero(&le, sizeof(ngx_http_script_engine_t));
|
|
|
1616
|
|
|
1617 le.ip = code->lengths->elts;
|
|
204
|
1618 le.line = e->line;
|
|
64
|
1619 le.request = e->request;
|
|
204
|
1620 le.quote = e->quote;
|
|
64
|
1621
|
|
|
1622 for (len = 0; *(uintptr_t *) le.ip; len += lcode(&le)) {
|
|
|
1623 lcode = *(ngx_http_script_len_code_pt *) le.ip;
|
|
|
1624 }
|
|
|
1625
|
|
|
1626 e->buf.len = len;
|
|
382
|
1627 e->buf.data = ngx_pnalloc(e->request->pool, len);
|
|
64
|
1628 if (e->buf.data == NULL) {
|
|
|
1629 e->ip = ngx_http_script_exit;
|
|
|
1630 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
1631 return;
|
|
|
1632 }
|
|
|
1633
|
|
|
1634 e->pos = e->buf.data;
|
|
|
1635
|
|
126
|
1636 e->sp->len = e->buf.len;
|
|
122
|
1637 e->sp->data = e->buf.data;
|
|
64
|
1638 e->sp++;
|
|
|
1639 }
|
|
|
1640
|
|
|
1641
|
|
|
1642 void
|
|
58
|
1643 ngx_http_script_value_code(ngx_http_script_engine_t *e)
|
|
|
1644 {
|
|
|
1645 ngx_http_script_value_code_t *code;
|
|
|
1646
|
|
|
1647 code = (ngx_http_script_value_code_t *) e->ip;
|
|
|
1648
|
|
|
1649 e->ip += sizeof(ngx_http_script_value_code_t);
|
|
|
1650
|
|
122
|
1651 e->sp->len = code->text_len;
|
|
|
1652 e->sp->data = (u_char *) code->text_data;
|
|
126
|
1653
|
|
|
1654 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
340
|
1655 "http script value: \"%v\"", e->sp);
|
|
126
|
1656
|
|
58
|
1657 e->sp++;
|
|
|
1658 }
|
|
|
1659
|
|
|
1660
|
|
|
1661 void
|
|
|
1662 ngx_http_script_set_var_code(ngx_http_script_engine_t *e)
|
|
|
1663 {
|
|
|
1664 ngx_http_request_t *r;
|
|
|
1665 ngx_http_script_var_code_t *code;
|
|
|
1666
|
|
|
1667 code = (ngx_http_script_var_code_t *) e->ip;
|
|
|
1668
|
|
|
1669 e->ip += sizeof(ngx_http_script_var_code_t);
|
|
|
1670
|
|
|
1671 r = e->request;
|
|
|
1672
|
|
|
1673 e->sp--;
|
|
|
1674
|
|
122
|
1675 r->variables[code->index].len = e->sp->len;
|
|
|
1676 r->variables[code->index].valid = 1;
|
|
340
|
1677 r->variables[code->index].no_cacheable = 0;
|
|
122
|
1678 r->variables[code->index].not_found = 0;
|
|
|
1679 r->variables[code->index].data = e->sp->data;
|
|
430
|
1680
|
|
|
1681 #if (NGX_DEBUG)
|
|
|
1682 {
|
|
|
1683 ngx_http_variable_t *v;
|
|
|
1684 ngx_http_core_main_conf_t *cmcf;
|
|
|
1685
|
|
|
1686 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
1687
|
|
|
1688 v = cmcf->variables.elts;
|
|
|
1689
|
|
|
1690 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
1691 "http script set $%V", &v[code->index].name);
|
|
|
1692 }
|
|
|
1693 #endif
|
|
58
|
1694 }
|
|
|
1695
|
|
|
1696
|
|
|
1697 void
|
|
186
|
1698 ngx_http_script_var_set_handler_code(ngx_http_script_engine_t *e)
|
|
|
1699 {
|
|
|
1700 ngx_http_script_var_handler_code_t *code;
|
|
|
1701
|
|
|
1702 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
1703 "http script set var handler");
|
|
|
1704
|
|
|
1705 code = (ngx_http_script_var_handler_code_t *) e->ip;
|
|
|
1706
|
|
|
1707 e->ip += sizeof(ngx_http_script_var_handler_code_t);
|
|
|
1708
|
|
|
1709 e->sp--;
|
|
|
1710
|
|
|
1711 code->handler(e->request, e->sp, code->data);
|
|
|
1712 }
|
|
|
1713
|
|
|
1714
|
|
|
1715 void
|
|
58
|
1716 ngx_http_script_var_code(ngx_http_script_engine_t *e)
|
|
|
1717 {
|
|
|
1718 ngx_http_variable_value_t *value;
|
|
|
1719 ngx_http_script_var_code_t *code;
|
|
|
1720
|
|
|
1721 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
1722 "http script var");
|
|
|
1723
|
|
|
1724 code = (ngx_http_script_var_code_t *) e->ip;
|
|
|
1725
|
|
|
1726 e->ip += sizeof(ngx_http_script_var_code_t);
|
|
|
1727
|
|
122
|
1728 value = ngx_http_get_flushed_variable(e->request, code->index);
|
|
58
|
1729
|
|
122
|
1730 if (value && !value->not_found) {
|
|
|
1731 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
328
|
1732 "http script var: \"%v\"", value);
|
|
122
|
1733
|
|
102
|
1734 *e->sp = *value;
|
|
58
|
1735 e->sp++;
|
|
|
1736
|
|
|
1737 return;
|
|
|
1738 }
|
|
|
1739
|
|
126
|
1740 *e->sp = ngx_http_variable_null_value;
|
|
58
|
1741 e->sp++;
|
|
|
1742 }
|
|
|
1743
|
|
|
1744
|
|
|
1745 void
|
|
|
1746 ngx_http_script_nop_code(ngx_http_script_engine_t *e)
|
|
|
1747 {
|
|
|
1748 e->ip += sizeof(uintptr_t);
|
|
|
1749 }
|
