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