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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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58
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214 ngx_uint_t
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215 ngx_http_script_variables_count(ngx_str_t *value)
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56
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216 {
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58
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217 ngx_uint_t i, n;
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56
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218
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58
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219 for (n = 0, i = 0; i < value->len; i++) {
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220 if (value->data[i] == '$') {
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221 n++;
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222 }
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56
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223 }
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224
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58
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225 return n;
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226 }
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227
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228
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229 ngx_int_t
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230 ngx_http_script_compile(ngx_http_script_compile_t *sc)
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231 {
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464
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232 u_char ch;
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233 ngx_str_t name;
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234 ngx_uint_t i, bracket;
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122
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235
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464
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236 if (ngx_http_script_init_arrays(sc) != NGX_OK) {
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237 return NGX_ERROR;
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58
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238 }
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239
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240 for (i = 0; i < sc->source->len; /* void */ ) {
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241
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242 name.len = 0;
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243
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244 if (sc->source->data[i] == '$') {
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245
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246 if (++i == sc->source->len) {
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247 goto invalid_variable;
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248 }
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249
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456
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250 #if (NGX_PCRE)
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464
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251 {
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252 ngx_uint_t n;
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456
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253
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254 /* NGX_HTTP_MAX_CAPTURES is 9 */
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255
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58
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256 if (sc->source->data[i] >= '1' && sc->source->data[i] <= '9') {
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257
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190
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258 n = sc->source->data[i] - '0';
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259
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260 if (sc->captures_mask & (1 << n)) {
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261 sc->dup_capture = 1;
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262 }
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263
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264 sc->captures_mask |= 1 << n;
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265
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464
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266 if (ngx_http_script_add_capture_code(sc, n) != NGX_OK) {
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58
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267 return NGX_ERROR;
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268 }
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269
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270 i++;
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271
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272 continue;
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273 }
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464
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274 }
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456
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275 #endif
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276
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58
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277 if (sc->source->data[i] == '{') {
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278 bracket = 1;
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279
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280 if (++i == sc->source->len) {
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281 goto invalid_variable;
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282 }
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283
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284 name.data = &sc->source->data[i];
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285
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286 } else {
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287 bracket = 0;
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288 name.data = &sc->source->data[i];
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289 }
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290
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291 for ( /* void */ ; i < sc->source->len; i++, name.len++) {
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292 ch = sc->source->data[i];
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56
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293
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58
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294 if (ch == '}' && bracket) {
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295 i++;
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296 bracket = 0;
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297 break;
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298 }
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299
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300 if ((ch >= 'A' && ch <= 'Z')
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301 || (ch >= 'a' && ch <= 'z')
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302 || (ch >= '0' && ch <= '9')
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303 || ch == '_')
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304 {
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305 continue;
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306 }
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307
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308 break;
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309 }
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310
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311 if (bracket) {
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312 ngx_conf_log_error(NGX_LOG_EMERG, sc->cf, 0,
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313 "the closing bracket in \"%V\" "
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314 "variable is missing", &name);
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56
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315 return NGX_ERROR;
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316 }
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317
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58
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318 if (name.len == 0) {
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319 goto invalid_variable;
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320 }
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56
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321
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58
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322 sc->variables++;
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56
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323
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464
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324 if (ngx_http_script_add_var_code(sc, &name) != NGX_OK) {
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56
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325 return NGX_ERROR;
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326 }
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327
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58
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328 continue;
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329 }
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56
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330
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58
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331 if (sc->source->data[i] == '?' && sc->compile_args) {
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332 sc->args = 1;
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333 sc->compile_args = 0;
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56
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334
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464
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335 if (ngx_http_script_add_args_code(sc) != NGX_OK) {
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366
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336 return NGX_ERROR;
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337 }
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338
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58
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339 i++;
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340
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56
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341 continue;
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342 }
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343
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58
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344 name.data = &sc->source->data[i];
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345
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444
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346 while (i < sc->source->len) {
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347
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348 if (sc->source->data[i] == '$') {
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349 break;
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350 }
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351
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352 if (sc->source->data[i] == '?') {
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353
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354 sc->args = 1;
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355
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356 if (sc->compile_args) {
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357 break;
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358 }
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359 }
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360
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58
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361 i++;
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362 name.len++;
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363 }
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364
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365 sc->size += name.len;
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366
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464
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367 if (ngx_http_script_add_copy_code(sc, &name, (i == sc->source->len))
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368 != NGX_OK)
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369 {
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58
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370 return NGX_ERROR;
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371 }
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56
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372 }
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373
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464
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374 return ngx_http_script_done(sc);
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58
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375
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376 invalid_variable:
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377
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378 ngx_conf_log_error(NGX_LOG_EMERG, sc->cf, 0, "invalid variable name");
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379
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380 return NGX_ERROR;
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56
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381 }
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382
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383
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172
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384 u_char *
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385 ngx_http_script_run(ngx_http_request_t *r, ngx_str_t *value,
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386 void *code_lengths, size_t len, void *code_values)
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387 {
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294
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388 ngx_uint_t i;
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389 ngx_http_script_code_pt code;
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390 ngx_http_script_len_code_pt lcode;
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391 ngx_http_script_engine_t e;
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392 ngx_http_core_main_conf_t *cmcf;
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393
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394 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
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395
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396 for (i = 0; i < cmcf->variables.nelts; i++) {
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340
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397 if (r->variables[i].no_cacheable) {
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294
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398 r->variables[i].valid = 0;
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399 r->variables[i].not_found = 0;
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400 }
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401 }
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172
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402
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403 ngx_memzero(&e, sizeof(ngx_http_script_engine_t));
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404
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405 e.ip = code_lengths;
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406 e.request = r;
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407 e.flushed = 1;
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408
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409 while (*(uintptr_t *) e.ip) {
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410 lcode = *(ngx_http_script_len_code_pt *) e.ip;
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411 len += lcode(&e);
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412 }
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413
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414
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415 value->len = len;
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382
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416 value->data = ngx_pnalloc(r->pool, len);
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172
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417 if (value->data == NULL) {
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418 return NULL;
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|
419 }
|
|
|
420
|
|
|
421 e.ip = code_values;
|
|
|
422 e.pos = value->data;
|
|
|
423
|
|
|
424 while (*(uintptr_t *) e.ip) {
|
|
|
425 code = *(ngx_http_script_code_pt *) e.ip;
|
|
|
426 code((ngx_http_script_engine_t *) &e);
|
|
|
427 }
|
|
|
428
|
|
|
429 return e.pos;
|
|
|
430 }
|
|
|
431
|
|
|
432
|
|
122
|
433 void
|
|
340
|
434 ngx_http_script_flush_no_cacheable_variables(ngx_http_request_t *r,
|
|
122
|
435 ngx_array_t *indices)
|
|
|
436 {
|
|
|
437 ngx_uint_t n, *index;
|
|
|
438
|
|
|
439 if (indices) {
|
|
|
440 index = indices->elts;
|
|
|
441 for (n = 0; n < indices->nelts; n++) {
|
|
340
|
442 if (r->variables[index[n]].no_cacheable) {
|
|
122
|
443 r->variables[index[n]].valid = 0;
|
|
|
444 r->variables[index[n]].not_found = 0;
|
|
|
445 }
|
|
|
446 }
|
|
|
447 }
|
|
|
448 }
|
|
|
449
|
|
|
450
|
|
464
|
451 static ngx_int_t
|
|
|
452 ngx_http_script_init_arrays(ngx_http_script_compile_t *sc)
|
|
|
453 {
|
|
|
454 ngx_uint_t n;
|
|
|
455
|
|
|
456 if (sc->flushes && *sc->flushes == NULL) {
|
|
|
457 n = sc->variables ? sc->variables : 1;
|
|
|
458 *sc->flushes = ngx_array_create(sc->cf->pool, n, sizeof(ngx_uint_t));
|
|
|
459 if (*sc->flushes == NULL) {
|
|
|
460 return NGX_ERROR;
|
|
|
461 }
|
|
|
462 }
|
|
|
463
|
|
|
464 if (*sc->lengths == NULL) {
|
|
|
465 n = sc->variables * (2 * sizeof(ngx_http_script_copy_code_t)
|
|
|
466 + sizeof(ngx_http_script_var_code_t))
|
|
|
467 + sizeof(uintptr_t);
|
|
|
468
|
|
|
469 *sc->lengths = ngx_array_create(sc->cf->pool, n, 1);
|
|
|
470 if (*sc->lengths == NULL) {
|
|
|
471 return NGX_ERROR;
|
|
|
472 }
|
|
|
473 }
|
|
|
474
|
|
|
475 if (*sc->values == NULL) {
|
|
|
476 n = (sc->variables * (2 * sizeof(ngx_http_script_copy_code_t)
|
|
|
477 + sizeof(ngx_http_script_var_code_t))
|
|
|
478 + sizeof(uintptr_t)
|
|
|
479 + sc->source->len
|
|
|
480 + sizeof(uintptr_t) - 1)
|
|
|
481 & ~(sizeof(uintptr_t) - 1);
|
|
|
482
|
|
|
483 *sc->values = ngx_array_create(sc->cf->pool, n, 1);
|
|
|
484 if (*sc->values == NULL) {
|
|
|
485 return NGX_ERROR;
|
|
|
486 }
|
|
|
487 }
|
|
|
488
|
|
|
489 sc->variables = 0;
|
|
|
490
|
|
|
491 return NGX_OK;
|
|
|
492 }
|
|
|
493
|
|
|
494
|
|
|
495 static ngx_int_t
|
|
|
496 ngx_http_script_done(ngx_http_script_compile_t *sc)
|
|
|
497 {
|
|
|
498 ngx_str_t zero;
|
|
|
499 uintptr_t *code;
|
|
|
500
|
|
|
501 if (sc->zero) {
|
|
|
502
|
|
|
503 zero.len = 1;
|
|
|
504 zero.data = (u_char *) "\0";
|
|
|
505
|
|
|
506 if (ngx_http_script_add_copy_code(sc, &zero, 0) != NGX_OK) {
|
|
|
507 return NGX_ERROR;
|
|
|
508 }
|
|
|
509 }
|
|
|
510
|
|
|
511 if (sc->conf_prefix || sc->root_prefix) {
|
|
|
512 if (ngx_http_script_add_full_name_code(sc) != NGX_OK) {
|
|
|
513 return NGX_ERROR;
|
|
|
514 }
|
|
|
515 }
|
|
|
516
|
|
|
517 if (sc->complete_lengths) {
|
|
|
518 code = ngx_http_script_add_code(*sc->lengths, sizeof(uintptr_t), NULL);
|
|
|
519 if (code == NULL) {
|
|
|
520 return NGX_ERROR;
|
|
|
521 }
|
|
|
522
|
|
|
523 *code = (uintptr_t) NULL;
|
|
|
524 }
|
|
|
525
|
|
|
526 if (sc->complete_values) {
|
|
|
527 code = ngx_http_script_add_code(*sc->values, sizeof(uintptr_t),
|
|
|
528 &sc->main);
|
|
|
529 if (code == NULL) {
|
|
|
530 return NGX_ERROR;
|
|
|
531 }
|
|
|
532
|
|
|
533 *code = (uintptr_t) NULL;
|
|
|
534 }
|
|
|
535
|
|
|
536 return NGX_OK;
|
|
|
537 }
|
|
|
538
|
|
|
539
|
|
58
|
540 void *
|
|
56
|
541 ngx_http_script_start_code(ngx_pool_t *pool, ngx_array_t **codes, size_t size)
|
|
|
542 {
|
|
|
543 if (*codes == NULL) {
|
|
|
544 *codes = ngx_array_create(pool, 256, 1);
|
|
|
545 if (*codes == NULL) {
|
|
|
546 return NULL;
|
|
|
547 }
|
|
|
548 }
|
|
|
549
|
|
|
550 return ngx_array_push_n(*codes, size);
|
|
|
551 }
|
|
|
552
|
|
58
|
553
|
|
|
554 void *
|
|
|
555 ngx_http_script_add_code(ngx_array_t *codes, size_t size, void *code)
|
|
|
556 {
|
|
|
557 u_char *elts, **p;
|
|
|
558 void *new;
|
|
|
559
|
|
|
560 elts = codes->elts;
|
|
|
561
|
|
|
562 new = ngx_array_push_n(codes, size);
|
|
|
563 if (new == NULL) {
|
|
496
|
564 return NULL;
|
|
58
|
565 }
|
|
|
566
|
|
|
567 if (code) {
|
|
|
568 if (elts != codes->elts) {
|
|
|
569 p = code;
|
|
|
570 *p += (u_char *) codes->elts - elts;
|
|
|
571 }
|
|
|
572 }
|
|
|
573
|
|
|
574 return new;
|
|
|
575 }
|
|
56
|
576
|
|
|
577
|
|
464
|
578 static ngx_int_t
|
|
|
579 ngx_http_script_add_copy_code(ngx_http_script_compile_t *sc, ngx_str_t *value,
|
|
|
580 ngx_uint_t last)
|
|
|
581 {
|
|
|
582 u_char *p;
|
|
|
583 size_t size, len, zero;
|
|
|
584 ngx_http_script_copy_code_t *code;
|
|
|
585
|
|
|
586 zero = (sc->zero && last);
|
|
|
587 len = value->len + zero;
|
|
|
588
|
|
|
589 code = ngx_http_script_add_code(*sc->lengths,
|
|
|
590 sizeof(ngx_http_script_copy_code_t), NULL);
|
|
|
591 if (code == NULL) {
|
|
|
592 return NGX_ERROR;
|
|
|
593 }
|
|
|
594
|
|
|
595 code->code = (ngx_http_script_code_pt) ngx_http_script_copy_len_code;
|
|
|
596 code->len = len;
|
|
|
597
|
|
|
598 size = (sizeof(ngx_http_script_copy_code_t) + len + sizeof(uintptr_t) - 1)
|
|
|
599 & ~(sizeof(uintptr_t) - 1);
|
|
|
600
|
|
|
601 code = ngx_http_script_add_code(*sc->values, size, &sc->main);
|
|
|
602 if (code == NULL) {
|
|
|
603 return NGX_ERROR;
|
|
|
604 }
|
|
|
605
|
|
|
606 code->code = ngx_http_script_copy_code;
|
|
|
607 code->len = len;
|
|
|
608
|
|
|
609 p = ngx_cpymem((u_char *) code + sizeof(ngx_http_script_copy_code_t),
|
|
|
610 value->data, value->len);
|
|
|
611
|
|
|
612 if (zero) {
|
|
|
613 *p = '\0';
|
|
|
614 sc->zero = 0;
|
|
|
615 }
|
|
|
616
|
|
|
617 return NGX_OK;
|
|
|
618 }
|
|
|
619
|
|
|
620
|
|
56
|
621 size_t
|
|
58
|
622 ngx_http_script_copy_len_code(ngx_http_script_engine_t *e)
|
|
56
|
623 {
|
|
|
624 ngx_http_script_copy_code_t *code;
|
|
|
625
|
|
58
|
626 code = (ngx_http_script_copy_code_t *) e->ip;
|
|
56
|
627
|
|
58
|
628 e->ip += sizeof(ngx_http_script_copy_code_t);
|
|
56
|
629
|
|
|
630 return code->len;
|
|
|
631 }
|
|
|
632
|
|
|
633
|
|
|
634 void
|
|
58
|
635 ngx_http_script_copy_code(ngx_http_script_engine_t *e)
|
|
56
|
636 {
|
|
430
|
637 u_char *p;
|
|
56
|
638 ngx_http_script_copy_code_t *code;
|
|
|
639
|
|
58
|
640 code = (ngx_http_script_copy_code_t *) e->ip;
|
|
|
641
|
|
430
|
642 p = e->pos;
|
|
|
643
|
|
58
|
644 if (!e->skip) {
|
|
430
|
645 e->pos = ngx_copy(p, e->ip + sizeof(ngx_http_script_copy_code_t),
|
|
122
|
646 code->len);
|
|
58
|
647 }
|
|
56
|
648
|
|
58
|
649 e->ip += sizeof(ngx_http_script_copy_code_t)
|
|
|
650 + ((code->len + sizeof(uintptr_t) - 1) & ~(sizeof(uintptr_t) - 1));
|
|
56
|
651
|
|
430
|
652 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
653 "http script copy: \"%*s\"", e->pos - p, p);
|
|
56
|
654 }
|
|
|
655
|
|
|
656
|
|
464
|
657 static ngx_int_t
|
|
|
658 ngx_http_script_add_var_code(ngx_http_script_compile_t *sc, ngx_str_t *name)
|
|
|
659 {
|
|
|
660 ngx_int_t index, *p;
|
|
|
661 ngx_http_script_var_code_t *code;
|
|
|
662
|
|
|
663 index = ngx_http_get_variable_index(sc->cf, name);
|
|
|
664
|
|
|
665 if (index == NGX_ERROR) {
|
|
|
666 return NGX_ERROR;
|
|
|
667 }
|
|
|
668
|
|
|
669 if (sc->flushes) {
|
|
|
670 p = ngx_array_push(*sc->flushes);
|
|
|
671 if (p == NULL) {
|
|
|
672 return NGX_ERROR;
|
|
|
673 }
|
|
|
674
|
|
|
675 *p = index;
|
|
|
676 }
|
|
|
677
|
|
|
678 code = ngx_http_script_add_code(*sc->lengths,
|
|
|
679 sizeof(ngx_http_script_var_code_t), NULL);
|
|
|
680 if (code == NULL) {
|
|
|
681 return NGX_ERROR;
|
|
|
682 }
|
|
|
683
|
|
|
684 code->code = (ngx_http_script_code_pt) ngx_http_script_copy_var_len_code;
|
|
|
685 code->index = (uintptr_t) index;
|
|
|
686
|
|
|
687 code = ngx_http_script_add_code(*sc->values,
|
|
|
688 sizeof(ngx_http_script_var_code_t),
|
|
|
689 &sc->main);
|
|
|
690 if (code == NULL) {
|
|
|
691 return NGX_ERROR;
|
|
|
692 }
|
|
|
693
|
|
|
694 code->code = ngx_http_script_copy_var_code;
|
|
|
695 code->index = (uintptr_t) index;
|
|
|
696
|
|
|
697 return NGX_OK;
|
|
|
698 }
|
|
|
699
|
|
|
700
|
|
56
|
701 size_t
|
|
58
|
702 ngx_http_script_copy_var_len_code(ngx_http_script_engine_t *e)
|
|
56
|
703 {
|
|
|
704 ngx_http_variable_value_t *value;
|
|
|
705 ngx_http_script_var_code_t *code;
|
|
|
706
|
|
58
|
707 code = (ngx_http_script_var_code_t *) e->ip;
|
|
56
|
708
|
|
58
|
709 e->ip += sizeof(ngx_http_script_var_code_t);
|
|
56
|
710
|
|
122
|
711 if (e->flushed) {
|
|
|
712 value = ngx_http_get_indexed_variable(e->request, code->index);
|
|
56
|
713
|
|
122
|
714 } else {
|
|
|
715 value = ngx_http_get_flushed_variable(e->request, code->index);
|
|
|
716 }
|
|
|
717
|
|
|
718 if (value && !value->not_found) {
|
|
|
719 return value->len;
|
|
56
|
720 }
|
|
|
721
|
|
102
|
722 return 0;
|
|
56
|
723 }
|
|
|
724
|
|
|
725
|
|
|
726 void
|
|
58
|
727 ngx_http_script_copy_var_code(ngx_http_script_engine_t *e)
|
|
56
|
728 {
|
|
430
|
729 u_char *p;
|
|
56
|
730 ngx_http_variable_value_t *value;
|
|
|
731 ngx_http_script_var_code_t *code;
|
|
|
732
|
|
58
|
733 code = (ngx_http_script_var_code_t *) e->ip;
|
|
|
734
|
|
|
735 e->ip += sizeof(ngx_http_script_var_code_t);
|
|
|
736
|
|
|
737 if (!e->skip) {
|
|
122
|
738
|
|
|
739 if (e->flushed) {
|
|
|
740 value = ngx_http_get_indexed_variable(e->request, code->index);
|
|
58
|
741
|
|
122
|
742 } else {
|
|
|
743 value = ngx_http_get_flushed_variable(e->request, code->index);
|
|
|
744 }
|
|
|
745
|
|
|
746 if (value && !value->not_found) {
|
|
430
|
747 p = e->pos;
|
|
|
748 e->pos = ngx_copy(p, value->data, value->len);
|
|
58
|
749
|
|
430
|
750 ngx_log_debug2(NGX_LOG_DEBUG_HTTP,
|
|
256
|
751 e->request->connection->log, 0,
|
|
430
|
752 "http script var: \"%*s\"", e->pos - p, p);
|
|
58
|
753 }
|
|
|
754 }
|
|
|
755 }
|
|
|
756
|
|
|
757
|
|
464
|
758 static ngx_int_t
|
|
|
759 ngx_http_script_add_args_code(ngx_http_script_compile_t *sc)
|
|
|
760 {
|
|
|
761 uintptr_t *code;
|
|
|
762
|
|
|
763 code = ngx_http_script_add_code(*sc->lengths, sizeof(uintptr_t), NULL);
|
|
|
764 if (code == NULL) {
|
|
|
765 return NGX_ERROR;
|
|
|
766 }
|
|
|
767
|
|
|
768 *code = (uintptr_t) ngx_http_script_mark_args_code;
|
|
|
769
|
|
|
770 code = ngx_http_script_add_code(*sc->values, sizeof(uintptr_t), &sc->main);
|
|
|
771 if (code == NULL) {
|
|
|
772 return NGX_ERROR;
|
|
|
773 }
|
|
|
774
|
|
|
775 *code = (uintptr_t) ngx_http_script_start_args_code;
|
|
|
776
|
|
|
777 return NGX_OK;
|
|
|
778 }
|
|
|
779
|
|
|
780
|
|
58
|
781 size_t
|
|
366
|
782 ngx_http_script_mark_args_code(ngx_http_script_engine_t *e)
|
|
|
783 {
|
|
|
784 e->is_args = 1;
|
|
|
785 e->ip += sizeof(uintptr_t);
|
|
|
786
|
|
|
787 return 1;
|
|
|
788 }
|
|
|
789
|
|
|
790
|
|
58
|
791 void
|
|
|
792 ngx_http_script_start_args_code(ngx_http_script_engine_t *e)
|
|
|
793 {
|
|
|
794 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
795 "http script args");
|
|
126
|
796
|
|
404
|
797 e->is_args = 1;
|
|
58
|
798 e->args = e->pos;
|
|
|
799 e->ip += sizeof(uintptr_t);
|
|
|
800 }
|
|
|
801
|
|
|
802
|
|
66
|
803 #if (NGX_PCRE)
|
|
|
804
|
|
58
|
805 void
|
|
|
806 ngx_http_script_regex_start_code(ngx_http_script_engine_t *e)
|
|
|
807 {
|
|
|
808 size_t len;
|
|
|
809 ngx_int_t rc;
|
|
|
810 ngx_uint_t n;
|
|
|
811 ngx_http_request_t *r;
|
|
|
812 ngx_http_script_engine_t le;
|
|
|
813 ngx_http_script_len_code_pt lcode;
|
|
|
814 ngx_http_script_regex_code_t *code;
|
|
|
815
|
|
|
816 code = (ngx_http_script_regex_code_t *) e->ip;
|
|
|
817
|
|
|
818 r = e->request;
|
|
|
819
|
|
|
820 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
821 "http script regex: \"%V\"", &code->name);
|
|
|
822
|
|
|
823 if (code->uri) {
|
|
64
|
824 e->line = r->uri;
|
|
58
|
825 } else {
|
|
|
826 e->sp--;
|
|
122
|
827 e->line.len = e->sp->len;
|
|
|
828 e->line.data = e->sp->data;
|
|
58
|
829 }
|
|
56
|
830
|
|
456
|
831 if (code->ncaptures && r->captures == NULL) {
|
|
|
832
|
|
|
833 r->captures = ngx_palloc(r->pool,
|
|
|
834 (NGX_HTTP_MAX_CAPTURES + 1) * 3 * sizeof(int));
|
|
|
835 if (r->captures == NULL) {
|
|
|
836 e->ip = ngx_http_script_exit;
|
|
|
837 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
838 return;
|
|
|
839 }
|
|
|
840 }
|
|
|
841
|
|
|
842 rc = ngx_regex_exec(code->regex, &e->line, r->captures, code->ncaptures);
|
|
58
|
843
|
|
|
844 if (rc == NGX_REGEX_NO_MATCHED) {
|
|
430
|
845 if (e->log || (r->connection->log->log_level & NGX_LOG_DEBUG_HTTP)) {
|
|
58
|
846 ngx_log_error(NGX_LOG_NOTICE, r->connection->log, 0,
|
|
64
|
847 "\"%V\" does not match \"%V\"",
|
|
|
848 &code->name, &e->line);
|
|
58
|
849 }
|
|
|
850
|
|
456
|
851 r->ncaptures = 0;
|
|
64
|
852
|
|
58
|
853 if (code->test) {
|
|
180
|
854 if (code->negative_test) {
|
|
|
855 e->sp->len = 1;
|
|
|
856 e->sp->data = (u_char *) "1";
|
|
|
857
|
|
|
858 } else {
|
|
|
859 e->sp->len = 0;
|
|
|
860 e->sp->data = (u_char *) "";
|
|
|
861 }
|
|
|
862
|
|
58
|
863 e->sp++;
|
|
|
864
|
|
|
865 e->ip += sizeof(ngx_http_script_regex_code_t);
|
|
|
866 return;
|
|
|
867 }
|
|
|
868
|
|
|
869 e->ip += code->next;
|
|
|
870 return;
|
|
|
871 }
|
|
|
872
|
|
|
873 if (rc < 0) {
|
|
|
874 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
|
|
|
875 ngx_regex_exec_n " failed: %d on \"%V\" using \"%V\"",
|
|
64
|
876 rc, &e->line, &code->name);
|
|
58
|
877
|
|
|
878 e->ip = ngx_http_script_exit;
|
|
|
879 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
880 return;
|
|
|
881 }
|
|
|
882
|
|
430
|
883 if (e->log || (r->connection->log->log_level & NGX_LOG_DEBUG_HTTP)) {
|
|
58
|
884 ngx_log_error(NGX_LOG_NOTICE, r->connection->log, 0,
|
|
64
|
885 "\"%V\" matches \"%V\"", &code->name, &e->line);
|
|
58
|
886 }
|
|
|
887
|
|
456
|
888 r->ncaptures = code->ncaptures;
|
|
|
889 r->captures_data = e->line.data;
|
|
64
|
890
|
|
58
|
891 if (code->test) {
|
|
180
|
892 if (code->negative_test) {
|
|
|
893 e->sp->len = 0;
|
|
|
894 e->sp->data = (u_char *) "";
|
|
|
895
|
|
|
896 } else {
|
|
|
897 e->sp->len = 1;
|
|
|
898 e->sp->data = (u_char *) "1";
|
|
|
899 }
|
|
|
900
|
|
58
|
901 e->sp++;
|
|
|
902
|
|
|
903 e->ip += sizeof(ngx_http_script_regex_code_t);
|
|
|
904 return;
|
|
|
905 }
|
|
|
906
|
|
|
907 if (code->status) {
|
|
|
908 e->status = code->status;
|
|
56
|
909
|
|
58
|
910 if (!code->redirect) {
|
|
|
911 e->ip = ngx_http_script_exit;
|
|
|
912 return;
|
|
|
913 }
|
|
|
914 }
|
|
|
915
|
|
|
916 if (code->uri) {
|
|
|
917 r->internal = 1;
|
|
|
918 r->valid_unparsed_uri = 0;
|
|
|
919
|
|
|
920 if (code->break_cycle) {
|
|
|
921 r->valid_location = 0;
|
|
76
|
922 r->uri_changed = 0;
|
|
58
|
923
|
|
|
924 } else {
|
|
|
925 r->uri_changed = 1;
|
|
|
926 }
|
|
|
927 }
|
|
|
928
|
|
|
929 if (code->lengths == NULL) {
|
|
|
930 e->buf.len = code->size;
|
|
|
931
|
|
|
932 if (code->uri) {
|
|
|
933 if (rc && (r->quoted_uri || r->plus_in_uri)) {
|
|
|
934 e->buf.len += 2 * ngx_escape_uri(NULL, r->uri.data, r->uri.len,
|
|
|
935 NGX_ESCAPE_ARGS);
|
|
|
936 }
|
|
|
937 }
|
|
|
938
|
|
|
939 for (n = 1; n < (ngx_uint_t) rc; n++) {
|
|
456
|
940 e->buf.len += r->captures[2 * n + 1] - r->captures[2 * n];
|
|
58
|
941 }
|
|
|
942
|
|
|
943 } else {
|
|
|
944 ngx_memzero(&le, sizeof(ngx_http_script_engine_t));
|
|
|
945
|
|
|
946 le.ip = code->lengths->elts;
|
|
228
|
947 le.line = e->line;
|
|
58
|
948 le.request = r;
|
|
228
|
949 le.quote = code->redirect;
|
|
58
|
950
|
|
366
|
951 len = 0;
|
|
58
|
952
|
|
|
953 while (*(uintptr_t *) le.ip) {
|
|
|
954 lcode = *(ngx_http_script_len_code_pt *) le.ip;
|
|
|
955 len += lcode(&le);
|
|
|
956 }
|
|
|
957
|
|
|
958 e->buf.len = len;
|
|
366
|
959 e->is_args = le.is_args;
|
|
58
|
960 }
|
|
|
961
|
|
64
|
962 if (code->add_args && r->args.len) {
|
|
58
|
963 e->buf.len += r->args.len + 1;
|
|
|
964 }
|
|
|
965
|
|
382
|
966 e->buf.data = ngx_pnalloc(r->pool, e->buf.len);
|
|
58
|
967 if (e->buf.data == NULL) {
|
|
|
968 e->ip = ngx_http_script_exit;
|
|
|
969 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
56
|
970 return;
|
|
|
971 }
|
|
|
972
|
|
58
|
973 e->quote = code->redirect;
|
|
|
974
|
|
|
975 e->pos = e->buf.data;
|
|
|
976
|
|
|
977 e->ip += sizeof(ngx_http_script_regex_code_t);
|
|
|
978 }
|
|
|
979
|
|
|
980
|
|
|
981 void
|
|
|
982 ngx_http_script_regex_end_code(ngx_http_script_engine_t *e)
|
|
|
983 {
|
|
126
|
984 u_char *dst, *src;
|
|
58
|
985 ngx_http_request_t *r;
|
|
|
986 ngx_http_script_regex_end_code_t *code;
|
|
|
987
|
|
|
988 code = (ngx_http_script_regex_end_code_t *) e->ip;
|
|
|
989
|
|
|
990 r = e->request;
|
|
|
991
|
|
|
992 e->quote = 0;
|
|
|
993
|
|
|
994 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
995 "http script regex end");
|
|
|
996
|
|
|
997 if (code->redirect) {
|
|
|
998
|
|
126
|
999 dst = e->buf.data;
|
|
|
1000 src = e->buf.data;
|
|
|
1001
|
|
342
|
1002 ngx_unescape_uri(&dst, &src, e->pos - e->buf.data,
|
|
|
1003 NGX_UNESCAPE_REDIRECT);
|
|
126
|
1004
|
|
|
1005 if (src < e->pos) {
|
|
|
1006 dst = ngx_copy(dst, src, e->pos - src);
|
|
|
1007 }
|
|
|
1008
|
|
|
1009 e->pos = dst;
|
|
|
1010
|
|
|
1011 if (code->add_args && r->args.len) {
|
|
58
|
1012 *e->pos++ = (u_char) (code->args ? '&' : '?');
|
|
122
|
1013 e->pos = ngx_copy(e->pos, r->args.data, r->args.len);
|
|
58
|
1014 }
|
|
|
1015
|
|
|
1016 e->buf.len = e->pos - e->buf.data;
|
|
|
1017
|
|
430
|
1018 if (e->log || (r->connection->log->log_level & NGX_LOG_DEBUG_HTTP)) {
|
|
58
|
1019 ngx_log_error(NGX_LOG_NOTICE, r->connection->log, 0,
|
|
|
1020 "rewritten redirect: \"%V\"", &e->buf);
|
|
|
1021 }
|
|
|
1022
|
|
|
1023 r->headers_out.location = ngx_list_push(&r->headers_out.headers);
|
|
|
1024 if (r->headers_out.location == NULL) {
|
|
|
1025 e->ip = ngx_http_script_exit;
|
|
|
1026 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
1027 return;
|
|
|
1028 }
|
|
|
1029
|
|
126
|
1030 r->headers_out.location->hash = 1;
|
|
58
|
1031 r->headers_out.location->key.len = sizeof("Location") - 1;
|
|
|
1032 r->headers_out.location->key.data = (u_char *) "Location";
|
|
|
1033 r->headers_out.location->value = e->buf;
|
|
|
1034
|
|
|
1035 e->ip += sizeof(ngx_http_script_regex_end_code_t);
|
|
|
1036 return;
|
|
|
1037 }
|
|
|
1038
|
|
126
|
1039 if (e->args) {
|
|
58
|
1040 e->buf.len = e->args - e->buf.data;
|
|
|
1041
|
|
|
1042 if (code->add_args && r->args.len) {
|
|
|
1043 *e->pos++ = '&';
|
|
122
|
1044 e->pos = ngx_copy(e->pos, r->args.data, r->args.len);
|
|
58
|
1045 }
|
|
|
1046
|
|
|
1047 r->args.len = e->pos - e->args;
|
|
|
1048 r->args.data = e->args;
|
|
|
1049
|
|
|
1050 e->args = NULL;
|
|
|
1051
|
|
|
1052 } else {
|
|
|
1053 e->buf.len = e->pos - e->buf.data;
|
|
222
|
1054
|
|
|
1055 if (!code->add_args) {
|
|
|
1056 r->args.len = 0;
|
|
|
1057 }
|
|
58
|
1058 }
|
|
|
1059
|
|
430
|
1060 if (e->log || (r->connection->log->log_level & NGX_LOG_DEBUG_HTTP)) {
|
|
58
|
1061 ngx_log_error(NGX_LOG_NOTICE, r->connection->log, 0,
|
|
|
1062 "rewritten data: \"%V\", args: \"%V\"",
|
|
|
1063 &e->buf, &r->args);
|
|
|
1064 }
|
|
|
1065
|
|
|
1066 if (code->uri) {
|
|
|
1067 r->uri = e->buf;
|
|
|
1068
|
|
84
|
1069 if (r->uri.len == 0) {
|
|
|
1070 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1071 "the rewritten URI has a zero length");
|
|
|
1072 e->ip = ngx_http_script_exit;
|
|
|
1073 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
1074 return;
|
|
|
1075 }
|
|
|
1076
|
|
508
|
1077 ngx_http_set_exten(r);
|
|
58
|
1078 }
|
|
|
1079
|
|
|
1080 e->ip += sizeof(ngx_http_script_regex_end_code_t);
|
|
|
1081 }
|
|
|
1082
|
|
456
|
1083
|
|
464
|
1084 static ngx_int_t
|
|
|
1085 ngx_http_script_add_capture_code(ngx_http_script_compile_t *sc, ngx_uint_t n)
|
|
|
1086 {
|
|
|
1087 ngx_http_script_copy_capture_code_t *code;
|
|
|
1088
|
|
|
1089 code = ngx_http_script_add_code(*sc->lengths,
|
|
|
1090 sizeof(ngx_http_script_copy_capture_code_t),
|
|
|
1091 NULL);
|
|
|
1092 if (code == NULL) {
|
|
|
1093 return NGX_ERROR;
|
|
|
1094 }
|
|
|
1095
|
|
|
1096 code->code = (ngx_http_script_code_pt)
|
|
|
1097 ngx_http_script_copy_capture_len_code;
|
|
|
1098 code->n = 2 * n;
|
|
|
1099
|
|
|
1100
|
|
|
1101 code = ngx_http_script_add_code(*sc->values,
|
|
|
1102 sizeof(ngx_http_script_copy_capture_code_t),
|
|
|
1103 &sc->main);
|
|
|
1104 if (code == NULL) {
|
|
|
1105 return NGX_ERROR;
|
|
|
1106 }
|
|
|
1107
|
|
|
1108 code->code = ngx_http_script_copy_capture_code;
|
|
|
1109 code->n = 2 * n;
|
|
|
1110
|
|
|
1111 if (sc->ncaptures < n) {
|
|
|
1112 sc->ncaptures = n;
|
|
|
1113 }
|
|
|
1114
|
|
|
1115 return NGX_OK;
|
|
|
1116 }
|
|
|
1117
|
|
|
1118
|
|
456
|
1119 size_t
|
|
|
1120 ngx_http_script_copy_capture_len_code(ngx_http_script_engine_t *e)
|
|
|
1121 {
|
|
|
1122 int *cap;
|
|
|
1123 u_char *p;
|
|
|
1124 ngx_uint_t n;
|
|
|
1125 ngx_http_request_t *r;
|
|
|
1126 ngx_http_script_copy_capture_code_t *code;
|
|
|
1127
|
|
|
1128 r = e->request;
|
|
|
1129
|
|
|
1130 code = (ngx_http_script_copy_capture_code_t *) e->ip;
|
|
|
1131
|
|
|
1132 e->ip += sizeof(ngx_http_script_copy_capture_code_t);
|
|
|
1133
|
|
|
1134 n = code->n;
|
|
|
1135
|
|
|
1136 if (n < r->ncaptures) {
|
|
|
1137
|
|
|
1138 cap = r->captures;
|
|
|
1139
|
|
|
1140 if ((e->is_args || e->quote)
|
|
|
1141 && (e->request->quoted_uri || e->request->plus_in_uri))
|
|
|
1142 {
|
|
|
1143 p = r->captures_data;
|
|
|
1144
|
|
|
1145 return cap[n + 1] - cap[n]
|
|
|
1146 + 2 * ngx_escape_uri(NULL, &p[cap[n]], cap[n + 1] - cap[n],
|
|
|
1147 NGX_ESCAPE_ARGS);
|
|
|
1148 } else {
|
|
|
1149 return cap[n + 1] - cap[n];
|
|
|
1150 }
|
|
|
1151 }
|
|
|
1152
|
|
|
1153 return 0;
|
|
|
1154 }
|
|
|
1155
|
|
|
1156
|
|
|
1157 void
|
|
|
1158 ngx_http_script_copy_capture_code(ngx_http_script_engine_t *e)
|
|
|
1159 {
|
|
|
1160 int *cap;
|
|
|
1161 u_char *p, *pos;
|
|
|
1162 ngx_uint_t n;
|
|
|
1163 ngx_http_request_t *r;
|
|
|
1164 ngx_http_script_copy_capture_code_t *code;
|
|
|
1165
|
|
|
1166 r = e->request;
|
|
|
1167
|
|
|
1168 code = (ngx_http_script_copy_capture_code_t *) e->ip;
|
|
|
1169
|
|
|
1170 e->ip += sizeof(ngx_http_script_copy_capture_code_t);
|
|
|
1171
|
|
|
1172 n = code->n;
|
|
|
1173
|
|
|
1174 pos = e->pos;
|
|
|
1175
|
|
|
1176 if (n < r->ncaptures) {
|
|
|
1177
|
|
|
1178 cap = r->captures;
|
|
|
1179 p = r->captures_data;
|
|
|
1180
|
|
|
1181 if ((e->is_args || e->quote)
|
|
|
1182 && (e->request->quoted_uri || e->request->plus_in_uri))
|
|
|
1183 {
|
|
|
1184 e->pos = (u_char *) ngx_escape_uri(pos, &p[cap[n]],
|
|
|
1185 cap[n + 1] - cap[n],
|
|
|
1186 NGX_ESCAPE_ARGS);
|
|
|
1187 } else {
|
|
|
1188 e->pos = ngx_copy(pos, &p[cap[n]], cap[n + 1] - cap[n]);
|
|
|
1189 }
|
|
|
1190 }
|
|
|
1191
|
|
|
1192 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
1193 "http script capture: \"%*s\"", e->pos - pos, pos);
|
|
|
1194 }
|
|
|
1195
|
|
66
|
1196 #endif
|
|
|
1197
|
|
58
|
1198
|
|
464
|
1199 static ngx_int_t
|
|
|
1200 ngx_http_script_add_full_name_code(ngx_http_script_compile_t *sc)
|
|
|
1201 {
|
|
|
1202 ngx_http_script_full_name_code_t *code;
|
|
|
1203
|
|
|
1204 code = ngx_http_script_add_code(*sc->lengths,
|
|
|
1205 sizeof(ngx_http_script_full_name_code_t),
|
|
|
1206 NULL);
|
|
|
1207 if (code == NULL) {
|
|
|
1208 return NGX_ERROR;
|
|
|
1209 }
|
|
|
1210
|
|
|
1211 code->code = (ngx_http_script_code_pt) ngx_http_script_full_name_len_code;
|
|
482
|
1212 code->conf_prefix = sc->conf_prefix;
|
|
464
|
1213
|
|
|
1214 code = ngx_http_script_add_code(*sc->values,
|
|
|
1215 sizeof(ngx_http_script_full_name_code_t),
|
|
|
1216 &sc->main);
|
|
|
1217 if (code == NULL) {
|
|
|
1218 return NGX_ERROR;
|
|
|
1219 }
|
|
|
1220
|
|
|
1221 code->code = ngx_http_script_full_name_code;
|
|
482
|
1222 code->conf_prefix = sc->conf_prefix;
|
|
464
|
1223
|
|
|
1224 return NGX_OK;
|
|
|
1225 }
|
|
|
1226
|
|
|
1227
|
|
|
1228 static size_t
|
|
|
1229 ngx_http_script_full_name_len_code(ngx_http_script_engine_t *e)
|
|
|
1230 {
|
|
|
1231 ngx_http_script_full_name_code_t *code;
|
|
|
1232
|
|
|
1233 code = (ngx_http_script_full_name_code_t *) e->ip;
|
|
|
1234
|
|
|
1235 e->ip += sizeof(ngx_http_script_full_name_code_t);
|
|
|
1236
|
|
482
|
1237 return code->conf_prefix ? ngx_cycle->conf_prefix.len:
|
|
|
1238 ngx_cycle->prefix.len;
|
|
464
|
1239 }
|
|
|
1240
|
|
|
1241
|
|
|
1242 static void
|
|
|
1243 ngx_http_script_full_name_code(ngx_http_script_engine_t *e)
|
|
|
1244 {
|
|
|
1245 ngx_http_script_full_name_code_t *code;
|
|
|
1246
|
|
|
1247 ngx_str_t value;
|
|
|
1248
|
|
|
1249 code = (ngx_http_script_full_name_code_t *) e->ip;
|
|
|
1250
|
|
|
1251 value.data = e->buf.data;
|
|
|
1252 value.len = e->pos - e->buf.data;
|
|
|
1253
|
|
482
|
1254 if (ngx_conf_full_name((ngx_cycle_t *) ngx_cycle, &value, code->conf_prefix)
|
|
464
|
1255 != NGX_OK)
|
|
|
1256 {
|
|
|
1257 e->ip = ngx_http_script_exit;
|
|
|
1258 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
1259 return;
|
|
|
1260 }
|
|
|
1261
|
|
|
1262 e->buf = value;
|
|
|
1263
|
|
|
1264 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
1265 "http script fullname: \"%V\"", &value);
|
|
|
1266
|
|
|
1267 e->ip += sizeof(ngx_http_script_full_name_code_t);
|
|
|
1268 }
|
|
|
1269
|
|
|
1270
|
|
58
|
1271 void
|
|
|
1272 ngx_http_script_return_code(ngx_http_script_engine_t *e)
|
|
126
|
1273 {
|
|
58
|
1274 ngx_http_script_return_code_t *code;
|
|
126
|
1275
|
|
58
|
1276 code = (ngx_http_script_return_code_t *) e->ip;
|
|
|
1277
|
|
|
1278 e->status = code->status;
|
|
|
1279
|
|
202
|
1280 if (code->status == NGX_HTTP_NO_CONTENT) {
|
|
|
1281 e->request->header_only = 1;
|
|
238
|
1282 e->request->zero_body = 1;
|
|
202
|
1283 }
|
|
|
1284
|
|
58
|
1285 e->ip += sizeof(ngx_http_script_return_code_t) - sizeof(uintptr_t);
|
|
56
|
1286 }
|
|
58
|
1287
|
|
|
1288
|
|
|
1289 void
|
|
76
|
1290 ngx_http_script_break_code(ngx_http_script_engine_t *e)
|
|
|
1291 {
|
|
|
1292 e->request->uri_changed = 0;
|
|
|
1293
|
|
|
1294 e->ip = ngx_http_script_exit;
|
|
|
1295 }
|
|
|
1296
|
|
|
1297
|
|
|
1298 void
|
|
58
|
1299 ngx_http_script_if_code(ngx_http_script_engine_t *e)
|
|
|
1300 {
|
|
|
1301 ngx_http_script_if_code_t *code;
|
|
|
1302
|
|
|
1303 code = (ngx_http_script_if_code_t *) e->ip;
|
|
|
1304
|
|
|
1305 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
1306 "http script if");
|
|
|
1307
|
|
|
1308 e->sp--;
|
|
|
1309
|
|
122
|
1310 if (e->sp->len && e->sp->data[0] != '0') {
|
|
58
|
1311 if (code->loc_conf) {
|
|
|
1312 e->request->loc_conf = code->loc_conf;
|
|
84
|
1313 ngx_http_update_location_config(e->request);
|
|
58
|
1314 }
|
|
|
1315
|
|
|
1316 e->ip += sizeof(ngx_http_script_if_code_t);
|
|
|
1317 return;
|
|
|
1318 }
|
|
|
1319
|
|
|
1320 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
126
|
1321 "http script if: false");
|
|
58
|
1322
|
|
|
1323 e->ip += code->next;
|
|
|
1324 }
|
|
|
1325
|
|
|
1326
|
|
|
1327 void
|
|
126
|
1328 ngx_http_script_equal_code(ngx_http_script_engine_t *e)
|
|
|
1329 {
|
|
|
1330 ngx_http_variable_value_t *val, *res;
|
|
|
1331
|
|
|
1332 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
1333 "http script equal");
|
|
|
1334
|
|
|
1335 e->sp--;
|
|
|
1336 val = e->sp;
|
|
|
1337 res = e->sp - 1;
|
|
|
1338
|
|
|
1339 e->ip += sizeof(uintptr_t);
|
|
|
1340
|
|
430
|
1341 if (val->len == res->len
|
|
|
1342 && ngx_strncmp(val->data, res->data, res->len) == 0)
|
|
126
|
1343 {
|
|
|
1344 *res = ngx_http_variable_true_value;
|
|
|
1345 return;
|
|
|
1346 }
|
|
|
1347
|
|
|
1348 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
1349 "http script equal: no");
|
|
|
1350
|
|
|
1351 *res = ngx_http_variable_null_value;
|
|
|
1352 }
|
|
|
1353
|
|
|
1354
|
|
|
1355 void
|
|
|
1356 ngx_http_script_not_equal_code(ngx_http_script_engine_t *e)
|
|
|
1357 {
|
|
|
1358 ngx_http_variable_value_t *val, *res;
|
|
|
1359
|
|
|
1360 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
1361 "http script not equal");
|
|
|
1362
|
|
|
1363 e->sp--;
|
|
|
1364 val = e->sp;
|
|
|
1365 res = e->sp - 1;
|
|
|
1366
|
|
|
1367 e->ip += sizeof(uintptr_t);
|
|
|
1368
|
|
430
|
1369 if (val->len == res->len
|
|
|
1370 && ngx_strncmp(val->data, res->data, res->len) == 0)
|
|
126
|
1371 {
|
|
|
1372 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
1373 "http script not equal: no");
|
|
|
1374
|
|
|
1375 *res = ngx_http_variable_null_value;
|
|
|
1376 return;
|
|
|
1377 }
|
|
|
1378
|
|
|
1379 *res = ngx_http_variable_true_value;
|
|
|
1380 }
|
|
|
1381
|
|
|
1382
|
|
|
1383 void
|
|
180
|
1384 ngx_http_script_file_code(ngx_http_script_engine_t *e)
|
|
|
1385 {
|
|
332
|
1386 ngx_str_t path;
|
|
|
1387 ngx_http_request_t *r;
|
|
|
1388 ngx_open_file_info_t of;
|
|
|
1389 ngx_http_core_loc_conf_t *clcf;
|
|
180
|
1390 ngx_http_variable_value_t *value;
|
|
|
1391 ngx_http_script_file_code_t *code;
|
|
|
1392
|
|
|
1393 value = e->sp - 1;
|
|
|
1394
|
|
|
1395 code = (ngx_http_script_file_code_t *) e->ip;
|
|
|
1396 e->ip += sizeof(ngx_http_script_file_code_t);
|
|
|
1397
|
|
332
|
1398 path.len = value->len - 1;
|
|
|
1399 path.data = value->data;
|
|
|
1400
|
|
|
1401 r = e->request;
|
|
|
1402
|
|
|
1403 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1404 "http script file op %p \"%V\"", code->op, &path);
|
|
|
1405
|
|
|
1406 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
180
|
1407
|
|
384
|
1408 ngx_memzero(&of, sizeof(ngx_open_file_info_t));
|
|
|
1409
|
|
532
|
1410 of.read_ahead = clcf->read_ahead;
|
|
390
|
1411 of.directio = clcf->directio;
|
|
358
|
1412 of.valid = clcf->open_file_cache_valid;
|
|
|
1413 of.min_uses = clcf->open_file_cache_min_uses;
|
|
482
|
1414 of.test_only = 1;
|
|
332
|
1415 of.errors = clcf->open_file_cache_errors;
|
|
|
1416 of.events = clcf->open_file_cache_events;
|
|
180
|
1417
|
|
332
|
1418 if (ngx_open_cached_file(clcf->open_file_cache, &path, &of, r->pool)
|
|
362
|
1419 != NGX_OK)
|
|
332
|
1420 {
|
|
530
|
1421 if (of.err != NGX_ENOENT
|
|
|
1422 && of.err != NGX_ENOTDIR
|
|
|
1423 && of.err != NGX_ENAMETOOLONG)
|
|
|
1424 {
|
|
332
|
1425 ngx_log_error(NGX_LOG_CRIT, r->connection->log, of.err,
|
|
482
|
1426 "%s \"%s\" failed", of.failed, value->data);
|
|
180
|
1427 }
|
|
|
1428
|
|
|
1429 switch (code->op) {
|
|
220
|
1430
|
|
180
|
1431 case ngx_http_script_file_plain:
|
|
218
|
1432 case ngx_http_script_file_dir:
|
|
|
1433 case ngx_http_script_file_exists:
|
|
|
1434 case ngx_http_script_file_exec:
|
|
392
|
1435 goto false_value;
|
|
220
|
1436
|
|
180
|
1437 case ngx_http_script_file_not_plain:
|
|
218
|
1438 case ngx_http_script_file_not_dir:
|
|
220
|
1439 case ngx_http_script_file_not_exists:
|
|
218
|
1440 case ngx_http_script_file_not_exec:
|
|
392
|
1441 goto true_value;
|
|
180
|
1442 }
|
|
|
1443
|
|
392
|
1444 goto false_value;
|
|
180
|
1445 }
|
|
|
1446
|
|
|
1447 switch (code->op) {
|
|
|
1448 case ngx_http_script_file_plain:
|
|
332
|
1449 if (of.is_file) {
|
|
392
|
1450 goto true_value;
|
|
180
|
1451 }
|
|
392
|
1452 goto false_value;
|
|
180
|
1453
|
|
|
1454 case ngx_http_script_file_not_plain:
|
|
332
|
1455 if (of.is_file) {
|
|
392
|
1456 goto false_value;
|
|
180
|
1457 }
|
|
392
|
1458 goto true_value;
|
|
218
|
1459
|
|
|
1460 case ngx_http_script_file_dir:
|
|
332
|
1461 if (of.is_dir) {
|
|
392
|
1462 goto true_value;
|
|
218
|
1463 }
|
|
392
|
1464 goto false_value;
|
|
218
|
1465
|
|
|
1466 case ngx_http_script_file_not_dir:
|
|
332
|
1467 if (of.is_dir) {
|
|
392
|
1468 goto false_value;
|
|
218
|
1469 }
|
|
392
|
1470 goto true_value;
|
|
218
|
1471
|
|
|
1472 case ngx_http_script_file_exists:
|
|
332
|
1473 if (of.is_file || of.is_dir || of.is_link) {
|
|
392
|
1474 goto true_value;
|
|
218
|
1475 }
|
|
392
|
1476 goto false_value;
|
|
218
|
1477
|
|
|
1478 case ngx_http_script_file_not_exists:
|
|
332
|
1479 if (of.is_file || of.is_dir || of.is_link) {
|
|
392
|
1480 goto false_value;
|
|
218
|
1481 }
|
|
392
|
1482 goto true_value;
|
|
218
|
1483
|
|
|
1484 case ngx_http_script_file_exec:
|
|
332
|
1485 if (of.is_exec) {
|
|
392
|
1486 goto true_value;
|
|
218
|
1487 }
|
|
392
|
1488 goto false_value;
|
|
218
|
1489
|
|
|
1490 case ngx_http_script_file_not_exec:
|
|
332
|
1491 if (of.is_exec) {
|
|
392
|
1492 goto false_value;
|
|
218
|
1493 }
|
|
392
|
1494 goto true_value;
|
|
180
|
1495 }
|
|
|
1496
|
|
392
|
1497 false_value:
|
|
180
|
1498
|
|
332
|
1499 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
180
|
1500 "http script file op false");
|
|
|
1501
|
|
|
1502 *value = ngx_http_variable_null_value;
|
|
|
1503 return;
|
|
|
1504
|
|
392
|
1505 true_value:
|
|
180
|
1506
|
|
|
1507 *value = ngx_http_variable_true_value;
|
|
|
1508 return;
|
|
|
1509 }
|
|
|
1510
|
|
|
1511
|
|
|
1512 void
|
|
64
|
1513 ngx_http_script_complex_value_code(ngx_http_script_engine_t *e)
|
|
|
1514 {
|
|
|
1515 size_t len;
|
|
|
1516 ngx_http_script_engine_t le;
|
|
|
1517 ngx_http_script_len_code_pt lcode;
|
|
|
1518 ngx_http_script_complex_value_code_t *code;
|
|
|
1519
|
|
|
1520 code = (ngx_http_script_complex_value_code_t *) e->ip;
|
|
|
1521
|
|
|
1522 e->ip += sizeof(ngx_http_script_complex_value_code_t);
|
|
|
1523
|
|
|
1524 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
1525 "http script complex value");
|
|
|
1526
|
|
|
1527 ngx_memzero(&le, sizeof(ngx_http_script_engine_t));
|
|
|
1528
|
|
|
1529 le.ip = code->lengths->elts;
|
|
204
|
1530 le.line = e->line;
|
|
64
|
1531 le.request = e->request;
|
|
204
|
1532 le.quote = e->quote;
|
|
64
|
1533
|
|
|
1534 for (len = 0; *(uintptr_t *) le.ip; len += lcode(&le)) {
|
|
|
1535 lcode = *(ngx_http_script_len_code_pt *) le.ip;
|
|
|
1536 }
|
|
|
1537
|
|
|
1538 e->buf.len = len;
|
|
382
|
1539 e->buf.data = ngx_pnalloc(e->request->pool, len);
|
|
64
|
1540 if (e->buf.data == NULL) {
|
|
|
1541 e->ip = ngx_http_script_exit;
|
|
|
1542 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
1543 return;
|
|
|
1544 }
|
|
|
1545
|
|
|
1546 e->pos = e->buf.data;
|
|
|
1547
|
|
126
|
1548 e->sp->len = e->buf.len;
|
|
122
|
1549 e->sp->data = e->buf.data;
|
|
64
|
1550 e->sp++;
|
|
|
1551 }
|
|
|
1552
|
|
|
1553
|
|
|
1554 void
|
|
58
|
1555 ngx_http_script_value_code(ngx_http_script_engine_t *e)
|
|
|
1556 {
|
|
|
1557 ngx_http_script_value_code_t *code;
|
|
|
1558
|
|
|
1559 code = (ngx_http_script_value_code_t *) e->ip;
|
|
|
1560
|
|
|
1561 e->ip += sizeof(ngx_http_script_value_code_t);
|
|
|
1562
|
|
122
|
1563 e->sp->len = code->text_len;
|
|
|
1564 e->sp->data = (u_char *) code->text_data;
|
|
126
|
1565
|
|
|
1566 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
340
|
1567 "http script value: \"%v\"", e->sp);
|
|
126
|
1568
|
|
58
|
1569 e->sp++;
|
|
|
1570 }
|
|
|
1571
|
|
|
1572
|
|
|
1573 void
|
|
|
1574 ngx_http_script_set_var_code(ngx_http_script_engine_t *e)
|
|
|
1575 {
|
|
|
1576 ngx_http_request_t *r;
|
|
|
1577 ngx_http_script_var_code_t *code;
|
|
|
1578
|
|
|
1579 code = (ngx_http_script_var_code_t *) e->ip;
|
|
|
1580
|
|
|
1581 e->ip += sizeof(ngx_http_script_var_code_t);
|
|
|
1582
|
|
|
1583 r = e->request;
|
|
|
1584
|
|
|
1585 e->sp--;
|
|
|
1586
|
|
122
|
1587 r->variables[code->index].len = e->sp->len;
|
|
|
1588 r->variables[code->index].valid = 1;
|
|
340
|
1589 r->variables[code->index].no_cacheable = 0;
|
|
122
|
1590 r->variables[code->index].not_found = 0;
|
|
|
1591 r->variables[code->index].data = e->sp->data;
|
|
430
|
1592
|
|
|
1593 #if (NGX_DEBUG)
|
|
|
1594 {
|
|
|
1595 ngx_http_variable_t *v;
|
|
|
1596 ngx_http_core_main_conf_t *cmcf;
|
|
|
1597
|
|
|
1598 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
1599
|
|
|
1600 v = cmcf->variables.elts;
|
|
|
1601
|
|
|
1602 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
1603 "http script set $%V", &v[code->index].name);
|
|
|
1604 }
|
|
|
1605 #endif
|
|
58
|
1606 }
|
|
|
1607
|
|
|
1608
|
|
|
1609 void
|
|
186
|
1610 ngx_http_script_var_set_handler_code(ngx_http_script_engine_t *e)
|
|
|
1611 {
|
|
|
1612 ngx_http_script_var_handler_code_t *code;
|
|
|
1613
|
|
|
1614 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
1615 "http script set var handler");
|
|
|
1616
|
|
|
1617 code = (ngx_http_script_var_handler_code_t *) e->ip;
|
|
|
1618
|
|
|
1619 e->ip += sizeof(ngx_http_script_var_handler_code_t);
|
|
|
1620
|
|
|
1621 e->sp--;
|
|
|
1622
|
|
|
1623 code->handler(e->request, e->sp, code->data);
|
|
|
1624 }
|
|
|
1625
|
|
|
1626
|
|
|
1627 void
|
|
58
|
1628 ngx_http_script_var_code(ngx_http_script_engine_t *e)
|
|
|
1629 {
|
|
|
1630 ngx_http_variable_value_t *value;
|
|
|
1631 ngx_http_script_var_code_t *code;
|
|
|
1632
|
|
|
1633 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
|
1634 "http script var");
|
|
|
1635
|
|
|
1636 code = (ngx_http_script_var_code_t *) e->ip;
|
|
|
1637
|
|
|
1638 e->ip += sizeof(ngx_http_script_var_code_t);
|
|
|
1639
|
|
122
|
1640 value = ngx_http_get_flushed_variable(e->request, code->index);
|
|
58
|
1641
|
|
122
|
1642 if (value && !value->not_found) {
|
|
|
1643 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
328
|
1644 "http script var: \"%v\"", value);
|
|
122
|
1645
|
|
102
|
1646 *e->sp = *value;
|
|
58
|
1647 e->sp++;
|
|
|
1648
|
|
|
1649 return;
|
|
|
1650 }
|
|
|
1651
|
|
126
|
1652 *e->sp = ngx_http_variable_null_value;
|
|
58
|
1653 e->sp++;
|
|
|
1654 }
|
|
|
1655
|
|
|
1656
|
|
|
1657 void
|
|
|
1658 ngx_http_script_nop_code(ngx_http_script_engine_t *e)
|
|
|
1659 {
|
|
|
1660 e->ip += sizeof(uintptr_t);
|
|
|
1661 }
|
