58
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1
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126
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2 /*
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58
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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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12 typedef struct ngx_http_proxy_redirect_s ngx_http_proxy_redirect_t;
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13
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14 typedef ngx_int_t (*ngx_http_proxy_redirect_pt)(ngx_http_request_t *r,
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15 ngx_table_elt_t *h, size_t prefix, ngx_http_proxy_redirect_t *pr);
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16
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17 struct ngx_http_proxy_redirect_s {
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200
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18 ngx_http_proxy_redirect_pt handler;
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19 ngx_str_t redirect;
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20
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21 union {
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22 ngx_str_t text;
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23
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24 struct {
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25 void *lengths;
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26 void *values;
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58
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27 } vars;
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28
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200
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29 void *regex;
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58
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30 } replacement;
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31 };
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32
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33
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34 typedef struct {
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348
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35 ngx_str_t host_header;
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36 ngx_str_t port;
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37 ngx_str_t uri;
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38 } ngx_http_proxy_vars_t;
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39
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40
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41 typedef struct {
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200
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42 ngx_http_upstream_conf_t upstream;
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43
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44 ngx_array_t *flushes;
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45 ngx_array_t *body_set_len;
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46 ngx_array_t *body_set;
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47 ngx_array_t *headers_set_len;
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48 ngx_array_t *headers_set;
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49 ngx_hash_t headers_set_hash;
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50
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51 ngx_array_t *headers_source;
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52 ngx_array_t *headers_names;
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53
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348
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54 ngx_array_t *proxy_lengths;
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55 ngx_array_t *proxy_values;
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56
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200
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57 ngx_array_t *redirects;
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58
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59 ngx_str_t body_source;
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60
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61 ngx_str_t method;
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348
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62 ngx_str_t location;
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63 ngx_str_t url;
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64
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65 ngx_http_proxy_vars_t vars;
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66
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67 ngx_flag_t redirect;
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298
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68
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69 ngx_uint_t headers_hash_max_size;
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70 ngx_uint_t headers_hash_bucket_size;
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71 } ngx_http_proxy_loc_conf_t;
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72
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73
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74 typedef struct {
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75 ngx_uint_t status;
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76 ngx_uint_t status_count;
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77 u_char *status_start;
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78 u_char *status_end;
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79
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348
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80 ngx_http_proxy_vars_t vars;
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81
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200
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82 size_t internal_body_length;
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83 } ngx_http_proxy_ctx_t;
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84
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85
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86 #define NGX_HTTP_PROXY_PARSE_NO_HEADER 20
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87
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88
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348
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89 static ngx_int_t ngx_http_proxy_eval(ngx_http_request_t *r,
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90 ngx_http_proxy_ctx_t *ctx, ngx_http_proxy_loc_conf_t *plcf);
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91 static ngx_int_t ngx_http_proxy_create_request(ngx_http_request_t *r);
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92 static ngx_int_t ngx_http_proxy_reinit_request(ngx_http_request_t *r);
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93 static ngx_int_t ngx_http_proxy_process_status_line(ngx_http_request_t *r);
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94 static ngx_int_t ngx_http_proxy_parse_status_line(ngx_http_request_t *r,
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348
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95 ngx_http_proxy_ctx_t *ctx);
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96 static ngx_int_t ngx_http_proxy_process_header(ngx_http_request_t *r);
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97 static void ngx_http_proxy_abort_request(ngx_http_request_t *r);
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98 static void ngx_http_proxy_finalize_request(ngx_http_request_t *r,
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99 ngx_int_t rc);
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100
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122
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101 static ngx_int_t ngx_http_proxy_host_variable(ngx_http_request_t *r,
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102 ngx_http_variable_value_t *v, uintptr_t data);
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103 static ngx_int_t ngx_http_proxy_port_variable(ngx_http_request_t *r,
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104 ngx_http_variable_value_t *v, uintptr_t data);
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105 static ngx_int_t
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106 ngx_http_proxy_add_x_forwarded_for_variable(ngx_http_request_t *r,
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122
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107 ngx_http_variable_value_t *v, uintptr_t data);
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126
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108 static ngx_int_t
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109 ngx_http_proxy_internal_body_length_variable(ngx_http_request_t *r,
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110 ngx_http_variable_value_t *v, uintptr_t data);
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111 static ngx_int_t ngx_http_proxy_rewrite_redirect(ngx_http_request_t *r,
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112 ngx_table_elt_t *h, size_t prefix);
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113
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114 static ngx_int_t ngx_http_proxy_add_variables(ngx_conf_t *cf);
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115 static void *ngx_http_proxy_create_loc_conf(ngx_conf_t *cf);
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116 static char *ngx_http_proxy_merge_loc_conf(ngx_conf_t *cf,
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117 void *parent, void *child);
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118
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119 static char *ngx_http_proxy_pass(ngx_conf_t *cf, ngx_command_t *cmd,
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120 void *conf);
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121 static char *ngx_http_proxy_redirect(ngx_conf_t *cf, ngx_command_t *cmd,
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122 void *conf);
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320
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123 static char *ngx_http_proxy_store(ngx_conf_t *cf, ngx_command_t *cmd,
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124 void *conf);
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125
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126 static char *ngx_http_proxy_lowat_check(ngx_conf_t *cf, void *post, void *data);
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127
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260
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128 static char *ngx_http_proxy_upstream_max_fails_unsupported(ngx_conf_t *cf,
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129 ngx_command_t *cmd, void *conf);
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130 static char *ngx_http_proxy_upstream_fail_timeout_unsupported(ngx_conf_t *cf,
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131 ngx_command_t *cmd, void *conf);
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132
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348
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133 #if (NGX_HTTP_SSL)
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134 static ngx_int_t ngx_http_proxy_set_ssl(ngx_conf_t *cf,
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135 ngx_http_proxy_loc_conf_t *plcf);
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136 #endif
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137 static ngx_int_t ngx_http_proxy_set_vars(ngx_pool_t *pool, ngx_url_t *u,
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138 ngx_http_proxy_vars_t *v);
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139
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58
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140
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141 static ngx_conf_post_t ngx_http_proxy_lowat_post =
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142 { ngx_http_proxy_lowat_check };
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143
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144
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145 static ngx_conf_bitmask_t ngx_http_proxy_next_upstream_masks[] = {
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146 { ngx_string("error"), NGX_HTTP_UPSTREAM_FT_ERROR },
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147 { ngx_string("timeout"), NGX_HTTP_UPSTREAM_FT_TIMEOUT },
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148 { ngx_string("invalid_header"), NGX_HTTP_UPSTREAM_FT_INVALID_HEADER },
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149 { ngx_string("http_500"), NGX_HTTP_UPSTREAM_FT_HTTP_500 },
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412
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150 { ngx_string("http_502"), NGX_HTTP_UPSTREAM_FT_HTTP_502 },
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172
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151 { ngx_string("http_503"), NGX_HTTP_UPSTREAM_FT_HTTP_503 },
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412
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152 { ngx_string("http_504"), NGX_HTTP_UPSTREAM_FT_HTTP_504 },
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153 { ngx_string("http_404"), NGX_HTTP_UPSTREAM_FT_HTTP_404 },
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214
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154 { ngx_string("off"), NGX_HTTP_UPSTREAM_FT_OFF },
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155 { ngx_null_string, 0 }
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156 };
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157
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158
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159 static ngx_command_t ngx_http_proxy_commands[] = {
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160
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161 { ngx_string("proxy_pass"),
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256
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162 NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF|NGX_HTTP_LMT_CONF|NGX_CONF_TAKE1,
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163 ngx_http_proxy_pass,
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164 NGX_HTTP_LOC_CONF_OFFSET,
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165 0,
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166 NULL },
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167
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168 { ngx_string("proxy_redirect"),
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169 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE12,
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170 ngx_http_proxy_redirect,
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171 NGX_HTTP_LOC_CONF_OFFSET,
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172 0,
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173 NULL },
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174
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318
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175 { ngx_string("proxy_store"),
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320
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176 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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177 ngx_http_proxy_store,
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178 NGX_HTTP_LOC_CONF_OFFSET,
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179 0,
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180 NULL },
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181
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182 { ngx_string("proxy_store_access"),
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318
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183 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE123,
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184 ngx_conf_set_access_slot,
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185 NGX_HTTP_LOC_CONF_OFFSET,
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320
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186 offsetof(ngx_http_proxy_loc_conf_t, upstream.store_access),
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318
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187 NULL },
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188
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130
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189 { ngx_string("proxy_buffering"),
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190 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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191 ngx_conf_set_flag_slot,
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192 NGX_HTTP_LOC_CONF_OFFSET,
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193 offsetof(ngx_http_proxy_loc_conf_t, upstream.buffering),
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194 NULL },
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195
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178
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196 { ngx_string("proxy_ignore_client_abort"),
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197 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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198 ngx_conf_set_flag_slot,
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199 NGX_HTTP_LOC_CONF_OFFSET,
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200 offsetof(ngx_http_proxy_loc_conf_t, upstream.ignore_client_abort),
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201 NULL },
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202
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203 { ngx_string("proxy_connect_timeout"),
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204 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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205 ngx_conf_set_msec_slot,
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206 NGX_HTTP_LOC_CONF_OFFSET,
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207 offsetof(ngx_http_proxy_loc_conf_t, upstream.connect_timeout),
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208 NULL },
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209
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210 { ngx_string("proxy_send_timeout"),
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211 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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212 ngx_conf_set_msec_slot,
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213 NGX_HTTP_LOC_CONF_OFFSET,
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214 offsetof(ngx_http_proxy_loc_conf_t, upstream.send_timeout),
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215 NULL },
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216
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217 { ngx_string("proxy_send_lowat"),
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218 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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219 ngx_conf_set_size_slot,
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220 NGX_HTTP_LOC_CONF_OFFSET,
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221 offsetof(ngx_http_proxy_loc_conf_t, upstream.send_lowat),
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222 &ngx_http_proxy_lowat_post },
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223
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206
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224 { ngx_string("proxy_intercept_errors"),
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225 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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226 ngx_conf_set_flag_slot,
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227 NGX_HTTP_LOC_CONF_OFFSET,
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228 offsetof(ngx_http_proxy_loc_conf_t, upstream.intercept_errors),
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229 NULL },
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230
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231 { ngx_string("proxy_set_header"),
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232 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2,
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198
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233 ngx_conf_set_keyval_slot,
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234 NGX_HTTP_LOC_CONF_OFFSET,
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235 offsetof(ngx_http_proxy_loc_conf_t, headers_source),
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236 NULL },
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237
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298
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238 { ngx_string("proxy_headers_hash_max_size"),
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239 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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240 ngx_conf_set_num_slot,
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241 NGX_HTTP_LOC_CONF_OFFSET,
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242 offsetof(ngx_http_proxy_loc_conf_t, headers_hash_max_size),
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243 NULL },
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244
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245 { ngx_string("proxy_headers_hash_bucket_size"),
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246 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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247 ngx_conf_set_num_slot,
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248 NGX_HTTP_LOC_CONF_OFFSET,
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249 offsetof(ngx_http_proxy_loc_conf_t, headers_hash_bucket_size),
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250 NULL },
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251
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126
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252 { ngx_string("proxy_set_body"),
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253 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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254 ngx_conf_set_str_slot,
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255 NGX_HTTP_LOC_CONF_OFFSET,
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256 offsetof(ngx_http_proxy_loc_conf_t, body_source),
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257 NULL },
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258
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58
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259 { ngx_string("proxy_method"),
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260 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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261 ngx_conf_set_str_slot,
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262 NGX_HTTP_LOC_CONF_OFFSET,
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263 offsetof(ngx_http_proxy_loc_conf_t, method),
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264 NULL },
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265
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266 { ngx_string("proxy_pass_request_headers"),
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267 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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268 ngx_conf_set_flag_slot,
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269 NGX_HTTP_LOC_CONF_OFFSET,
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270 offsetof(ngx_http_proxy_loc_conf_t, upstream.pass_request_headers),
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271 NULL },
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272
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273 { ngx_string("proxy_pass_request_body"),
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274 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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275 ngx_conf_set_flag_slot,
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276 NGX_HTTP_LOC_CONF_OFFSET,
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277 offsetof(ngx_http_proxy_loc_conf_t, upstream.pass_request_body),
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278 NULL },
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279
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130
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280 { ngx_string("proxy_buffer_size"),
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281 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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282 ngx_conf_set_size_slot,
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283 NGX_HTTP_LOC_CONF_OFFSET,
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284 offsetof(ngx_http_proxy_loc_conf_t, upstream.buffer_size),
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285 NULL },
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286
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58
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287 { ngx_string("proxy_read_timeout"),
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288 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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289 ngx_conf_set_msec_slot,
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290 NGX_HTTP_LOC_CONF_OFFSET,
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291 offsetof(ngx_http_proxy_loc_conf_t, upstream.read_timeout),
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292 NULL },
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293
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294 { ngx_string("proxy_buffers"),
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295 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2,
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296 ngx_conf_set_bufs_slot,
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297 NGX_HTTP_LOC_CONF_OFFSET,
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298 offsetof(ngx_http_proxy_loc_conf_t, upstream.bufs),
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299 NULL },
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300
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301 { ngx_string("proxy_busy_buffers_size"),
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302 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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303 ngx_conf_set_size_slot,
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304 NGX_HTTP_LOC_CONF_OFFSET,
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305 offsetof(ngx_http_proxy_loc_conf_t, upstream.busy_buffers_size_conf),
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306 NULL },
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307
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308 { ngx_string("proxy_temp_path"),
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309 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1234,
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310 ngx_conf_set_path_slot,
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311 NGX_HTTP_LOC_CONF_OFFSET,
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312 offsetof(ngx_http_proxy_loc_conf_t, upstream.temp_path),
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313 (void *) ngx_garbage_collector_temp_handler },
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314
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315 { ngx_string("proxy_max_temp_file_size"),
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316 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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317 ngx_conf_set_size_slot,
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318 NGX_HTTP_LOC_CONF_OFFSET,
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78
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319 offsetof(ngx_http_proxy_loc_conf_t, upstream.max_temp_file_size_conf),
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320 NULL },
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321
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322 { ngx_string("proxy_temp_file_write_size"),
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323 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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324 ngx_conf_set_size_slot,
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325 NGX_HTTP_LOC_CONF_OFFSET,
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78
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326 offsetof(ngx_http_proxy_loc_conf_t, upstream.temp_file_write_size_conf),
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327 NULL },
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328
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329 { ngx_string("proxy_next_upstream"),
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96
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330 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
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58
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331 ngx_conf_set_bitmask_slot,
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332 NGX_HTTP_LOC_CONF_OFFSET,
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333 offsetof(ngx_http_proxy_loc_conf_t, upstream.next_upstream),
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334 &ngx_http_proxy_next_upstream_masks },
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335
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110
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336 { ngx_string("proxy_upstream_max_fails"),
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337 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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260
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338 ngx_http_proxy_upstream_max_fails_unsupported,
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339 0,
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340 0,
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110
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341 NULL },
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342
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343 { ngx_string("proxy_upstream_fail_timeout"),
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344 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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260
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345 ngx_http_proxy_upstream_fail_timeout_unsupported,
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346 0,
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347 0,
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110
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348 NULL },
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349
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198
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350 { ngx_string("proxy_pass_header"),
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58
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351 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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198
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352 ngx_conf_set_str_array_slot,
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58
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353 NGX_HTTP_LOC_CONF_OFFSET,
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198
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354 offsetof(ngx_http_proxy_loc_conf_t, upstream.pass_headers),
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58
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355 NULL },
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356
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198
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357 { ngx_string("proxy_hide_header"),
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58
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358 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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198
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359 ngx_conf_set_str_array_slot,
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58
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360 NGX_HTTP_LOC_CONF_OFFSET,
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198
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361 offsetof(ngx_http_proxy_loc_conf_t, upstream.hide_headers),
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58
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362 NULL },
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363
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398
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364 #if (NGX_HTTP_SSL)
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365
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366 { ngx_string("proxy_ssl_session_reuse"),
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367 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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368 ngx_conf_set_flag_slot,
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369 NGX_HTTP_LOC_CONF_OFFSET,
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370 offsetof(ngx_http_proxy_loc_conf_t, upstream.ssl_session_reuse),
|
|
371 NULL },
|
|
372
|
|
373 #endif
|
|
374
|
58
|
375 ngx_null_command
|
|
376 };
|
|
377
|
|
378
|
216
|
379 static ngx_http_module_t ngx_http_proxy_module_ctx = {
|
58
|
380 ngx_http_proxy_add_variables, /* preconfiguration */
|
|
381 NULL, /* postconfiguration */
|
|
382
|
|
383 NULL, /* create main configuration */
|
|
384 NULL, /* init main configuration */
|
|
385
|
|
386 NULL, /* create server configuration */
|
|
387 NULL, /* merge server configuration */
|
|
388
|
|
389 ngx_http_proxy_create_loc_conf, /* create location configration */
|
|
390 ngx_http_proxy_merge_loc_conf /* merge location configration */
|
|
391 };
|
|
392
|
|
393
|
|
394 ngx_module_t ngx_http_proxy_module = {
|
|
395 NGX_MODULE_V1,
|
|
396 &ngx_http_proxy_module_ctx, /* module context */
|
|
397 ngx_http_proxy_commands, /* module directives */
|
|
398 NGX_HTTP_MODULE, /* module type */
|
90
|
399 NULL, /* init master */
|
58
|
400 NULL, /* init module */
|
90
|
401 NULL, /* init process */
|
|
402 NULL, /* init thread */
|
|
403 NULL, /* exit thread */
|
|
404 NULL, /* exit process */
|
|
405 NULL, /* exit master */
|
|
406 NGX_MODULE_V1_PADDING
|
58
|
407 };
|
|
408
|
|
409
|
|
410 static char ngx_http_proxy_version[] = " HTTP/1.0" CRLF;
|
|
411
|
|
412
|
198
|
413 static ngx_keyval_t ngx_http_proxy_headers[] = {
|
|
414 { ngx_string("Host"), ngx_string("$proxy_host") },
|
|
415 { ngx_string("Connection"), ngx_string("close") },
|
|
416 { ngx_string("Keep-Alive"), ngx_string("") },
|
384
|
417 { ngx_string("Expect"), ngx_string("") },
|
198
|
418 { ngx_null_string, ngx_null_string }
|
|
419 };
|
|
420
|
|
421
|
|
422 static ngx_str_t ngx_http_proxy_hide_headers[] = {
|
|
423 ngx_string("Date"),
|
|
424 ngx_string("Server"),
|
|
425 ngx_string("X-Pad"),
|
|
426 ngx_string("X-Accel-Expires"),
|
|
427 ngx_string("X-Accel-Redirect"),
|
|
428 ngx_string("X-Accel-Limit-Rate"),
|
364
|
429 ngx_string("X-Accel-Buffering"),
|
|
430 ngx_string("X-Accel-Charset"),
|
198
|
431 ngx_null_string
|
58
|
432 };
|
|
433
|
|
434
|
|
435 static ngx_http_variable_t ngx_http_proxy_vars[] = {
|
|
436
|
186
|
437 { ngx_string("proxy_host"), NULL, ngx_http_proxy_host_variable, 0,
|
366
|
438 NGX_HTTP_VAR_CHANGEABLE|NGX_HTTP_VAR_NOCACHEABLE|NGX_HTTP_VAR_NOHASH, 0 },
|
58
|
439
|
186
|
440 { ngx_string("proxy_port"), NULL, ngx_http_proxy_port_variable, 0,
|
366
|
441 NGX_HTTP_VAR_CHANGEABLE|NGX_HTTP_VAR_NOCACHEABLE|NGX_HTTP_VAR_NOHASH, 0 },
|
58
|
442
|
186
|
443 { ngx_string("proxy_add_x_forwarded_for"), NULL,
|
132
|
444 ngx_http_proxy_add_x_forwarded_for_variable, 0, NGX_HTTP_VAR_NOHASH, 0 },
|
58
|
445
|
|
446 #if 0
|
186
|
447 { ngx_string("proxy_add_via"), NULL, NULL, 0, NGX_HTTP_VAR_NOHASH, 0 },
|
58
|
448 #endif
|
|
449
|
186
|
450 { ngx_string("proxy_internal_body_length"), NULL,
|
132
|
451 ngx_http_proxy_internal_body_length_variable, 0, NGX_HTTP_VAR_NOHASH, 0 },
|
126
|
452
|
186
|
453 { ngx_null_string, NULL, NULL, 0, 0, 0 }
|
58
|
454 };
|
|
455
|
|
456
|
|
457 static ngx_int_t
|
|
458 ngx_http_proxy_handler(ngx_http_request_t *r)
|
126
|
459 {
|
58
|
460 ngx_int_t rc;
|
|
461 ngx_http_upstream_t *u;
|
348
|
462 ngx_http_proxy_ctx_t *ctx;
|
58
|
463 ngx_http_proxy_loc_conf_t *plcf;
|
126
|
464
|
58
|
465 u = ngx_pcalloc(r->pool, sizeof(ngx_http_upstream_t));
|
|
466 if (u == NULL) {
|
|
467 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
468 }
|
126
|
469
|
348
|
470 r->upstream = u;
|
|
471
|
|
472 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_proxy_ctx_t));
|
|
473 if (ctx == NULL) {
|
|
474 return NGX_ERROR;
|
|
475 }
|
|
476
|
|
477 ngx_http_set_ctx(r, ctx, ngx_http_proxy_module);
|
|
478
|
|
479 plcf = ngx_http_get_module_loc_conf(r, ngx_http_proxy_module);
|
|
480
|
|
481 if (plcf->proxy_lengths == 0) {
|
|
482 ctx->vars = plcf->vars;
|
|
483 u->schema = plcf->upstream.schema;
|
|
484 #if (NGX_HTTP_SSL)
|
|
485 u->ssl = (plcf->upstream.ssl != NULL);
|
|
486 #endif
|
|
487
|
|
488 } else {
|
|
489 if (ngx_http_proxy_eval(r, ctx, plcf) != NGX_OK) {
|
|
490 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
491 }
|
|
492 }
|
|
493
|
58
|
494 u->peer.log = r->connection->log;
|
|
495 u->peer.log_error = NGX_ERROR_ERR;
|
|
496 #if (NGX_THREADS)
|
|
497 u->peer.lock = &r->connection->lock;
|
|
498 #endif
|
|
499
|
|
500 u->output.tag = (ngx_buf_tag_t) &ngx_http_proxy_module;
|
|
501
|
|
502 u->conf = &plcf->upstream;
|
|
503
|
|
504 u->create_request = ngx_http_proxy_create_request;
|
|
505 u->reinit_request = ngx_http_proxy_reinit_request;
|
|
506 u->process_header = ngx_http_proxy_process_status_line;
|
|
507 u->abort_request = ngx_http_proxy_abort_request;
|
|
508 u->finalize_request = ngx_http_proxy_finalize_request;
|
|
509
|
|
510 if (plcf->redirects) {
|
|
511 u->rewrite_redirect = ngx_http_proxy_rewrite_redirect;
|
|
512 }
|
|
513
|
198
|
514 u->buffering = plcf->upstream.buffering;
|
|
515
|
|
516 u->pipe = ngx_pcalloc(r->pool, sizeof(ngx_event_pipe_t));
|
|
517 if (u->pipe == NULL) {
|
|
518 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
130
|
519 }
|
58
|
520
|
198
|
521 u->pipe->input_filter = ngx_event_pipe_copy_input_filter;
|
|
522
|
58
|
523 u->accel = 1;
|
126
|
524
|
58
|
525 rc = ngx_http_read_client_request_body(r, ngx_http_upstream_init);
|
|
526
|
|
527 if (rc >= NGX_HTTP_SPECIAL_RESPONSE) {
|
|
528 return rc;
|
|
529 }
|
|
530
|
|
531 return NGX_DONE;
|
|
532 }
|
|
533
|
|
534
|
|
535 static ngx_int_t
|
348
|
536 ngx_http_proxy_eval(ngx_http_request_t *r, ngx_http_proxy_ctx_t *ctx,
|
|
537 ngx_http_proxy_loc_conf_t *plcf)
|
|
538 {
|
416
|
539 u_char *p;
|
|
540 size_t add;
|
|
541 u_short port;
|
|
542 ngx_str_t proxy;
|
|
543 ngx_url_t u;
|
348
|
544
|
|
545 if (ngx_http_script_run(r, &proxy, plcf->proxy_lengths->elts, 0,
|
|
546 plcf->proxy_values->elts)
|
|
547 == NULL)
|
|
548 {
|
|
549 return NGX_ERROR;
|
|
550 }
|
|
551
|
|
552 if (ngx_strncasecmp(proxy.data, (u_char *) "http://", 7) == 0) {
|
|
553
|
|
554 add = 7;
|
|
555 port = 80;
|
|
556
|
|
557 #if (NGX_HTTP_SSL)
|
|
558
|
|
559 } else if (ngx_strncasecmp(proxy.data, (u_char *) "https://", 8) == 0) {
|
|
560
|
|
561 add = 8;
|
|
562 port = 443;
|
|
563 r->upstream->ssl = 1;
|
|
564
|
|
565 #endif
|
|
566
|
|
567 } else {
|
|
568 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
569 "invalid URL prefix in \"%V\"", &proxy);
|
|
570 return NGX_ERROR;
|
|
571 }
|
|
572
|
|
573 r->upstream->schema.len = add;
|
|
574 r->upstream->schema.data = proxy.data;
|
|
575
|
|
576 ngx_memzero(&u, sizeof(ngx_url_t));
|
|
577
|
|
578 u.url.len = proxy.len - add;
|
|
579 u.url.data = proxy.data + add;
|
|
580 u.default_port = port;
|
|
581 u.uri_part = 1;
|
|
582 u.no_resolve = 1;
|
|
583
|
|
584 if (ngx_parse_url(r->pool, &u) != NGX_OK) {
|
|
585 if (u.err) {
|
|
586 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
587 "%s in upstream \"%V\"", u.err, &u.url);
|
|
588 }
|
|
589
|
|
590 return NGX_ERROR;
|
|
591 }
|
|
592
|
416
|
593 if (u.uri.len && u.uri.data[0] == '?') {
|
|
594 p = ngx_pnalloc(r->pool, u.uri.len + 1);
|
|
595 if (p == NULL) {
|
|
596 return NGX_ERROR;
|
|
597 }
|
|
598
|
|
599 *p++ = '/';
|
|
600 ngx_memcpy(p, u.uri.data, u.uri.len);
|
|
601
|
|
602 u.uri.len++;
|
|
603 u.uri.data = p - 1;
|
|
604 }
|
|
605
|
348
|
606 if (ngx_http_proxy_set_vars(r->pool, &u, &ctx->vars) != NGX_OK) {
|
|
607 return NGX_ERROR;
|
|
608 }
|
|
609
|
|
610 r->upstream->resolved = ngx_pcalloc(r->pool,
|
|
611 sizeof(ngx_http_upstream_resolved_t));
|
|
612 if (r->upstream->resolved == NULL) {
|
|
613 return NGX_ERROR;
|
|
614 }
|
|
615
|
|
616 r->upstream->resolved->host = u.host;
|
|
617 r->upstream->resolved->port = (in_port_t) (u.no_port ? u.default_port:
|
|
618 u.port);
|
416
|
619 r->upstream->resolved->no_port = u.no_port;
|
348
|
620
|
|
621 return NGX_OK;
|
|
622 }
|
|
623
|
|
624
|
|
625 static ngx_int_t
|
58
|
626 ngx_http_proxy_create_request(ngx_http_request_t *r)
|
|
627 {
|
126
|
628 size_t len, loc_len, body_len;
|
58
|
629 uintptr_t escape;
|
|
630 ngx_buf_t *b;
|
198
|
631 ngx_str_t method;
|
|
632 ngx_uint_t i, unparsed_uri;
|
58
|
633 ngx_chain_t *cl, *body;
|
|
634 ngx_list_part_t *part;
|
|
635 ngx_table_elt_t *header;
|
|
636 ngx_http_upstream_t *u;
|
348
|
637 ngx_http_proxy_ctx_t *ctx;
|
58
|
638 ngx_http_script_code_pt code;
|
|
639 ngx_http_script_engine_t e, le;
|
|
640 ngx_http_proxy_loc_conf_t *plcf;
|
|
641 ngx_http_script_len_code_pt lcode;
|
|
642
|
|
643 u = r->upstream;
|
|
644
|
|
645 plcf = ngx_http_get_module_loc_conf(r, ngx_http_proxy_module);
|
|
646
|
110
|
647 if (u->method.len) {
|
|
648 /* HEAD was changed to GET to cache response */
|
|
649 method = u->method;
|
|
650 method.len++;
|
|
651
|
|
652 } else if (plcf->method.len) {
|
|
653 method = plcf->method;
|
|
654
|
58
|
655 } else {
|
110
|
656 method = r->method_name;
|
|
657 method.len++;
|
58
|
658 }
|
|
659
|
352
|
660 len = method.len + sizeof(ngx_http_proxy_version) - 1 + sizeof(CRLF) - 1;
|
|
661
|
58
|
662 escape = 0;
|
348
|
663 loc_len = 0;
|
|
664 unparsed_uri = 0;
|
|
665
|
|
666 ctx = ngx_http_get_module_ctx(r, ngx_http_proxy_module);
|
|
667
|
|
668 if (plcf->proxy_lengths) {
|
352
|
669 len += ctx->vars.uri.len;
|
348
|
670
|
|
671 } else if (ctx->vars.uri.len == 0 && r->valid_unparsed_uri && r == r->main)
|
|
672 {
|
158
|
673 unparsed_uri = 1;
|
352
|
674 len += r->unparsed_uri.len;
|
58
|
675
|
|
676 } else {
|
348
|
677 loc_len = (r->valid_location && ctx->vars.uri.len) ?
|
|
678 plcf->location.len : 0;
|
|
679
|
336
|
680 if (r->quoted_uri || r->internal) {
|
58
|
681 escape = 2 * ngx_escape_uri(NULL, r->uri.data + loc_len,
|
|
682 r->uri.len - loc_len, NGX_ESCAPE_URI);
|
|
683 }
|
|
684
|
354
|
685 len += ctx->vars.uri.len + r->uri.len - loc_len + escape
|
|
686 + sizeof("?") - 1 + r->args.len;
|
58
|
687 }
|
|
688
|
340
|
689 ngx_http_script_flush_no_cacheable_variables(r, plcf->flushes);
|
122
|
690
|
126
|
691 if (plcf->body_set_len) {
|
|
692 le.ip = plcf->body_set_len->elts;
|
|
693 le.request = r;
|
|
694 le.flushed = 1;
|
|
695 body_len = 0;
|
|
696
|
|
697 while (*(uintptr_t *) le.ip) {
|
|
698 lcode = *(ngx_http_script_len_code_pt *) le.ip;
|
|
699 body_len += lcode(&le);
|
|
700 }
|
|
701
|
348
|
702 ctx->internal_body_length = body_len;
|
126
|
703 len += body_len;
|
|
704 }
|
|
705
|
58
|
706 le.ip = plcf->headers_set_len->elts;
|
|
707 le.request = r;
|
122
|
708 le.flushed = 1;
|
58
|
709
|
|
710 while (*(uintptr_t *) le.ip) {
|
|
711 while (*(uintptr_t *) le.ip) {
|
|
712 lcode = *(ngx_http_script_len_code_pt *) le.ip;
|
|
713 len += lcode(&le);
|
|
714 }
|
|
715 le.ip += sizeof(uintptr_t);
|
|
716 }
|
|
717
|
|
718
|
|
719 if (plcf->upstream.pass_request_headers) {
|
|
720 part = &r->headers_in.headers.part;
|
|
721 header = part->elts;
|
|
722
|
|
723 for (i = 0; /* void */; i++) {
|
|
724
|
|
725 if (i >= part->nelts) {
|
|
726 if (part->next == NULL) {
|
|
727 break;
|
|
728 }
|
|
729
|
|
730 part = part->next;
|
|
731 header = part->elts;
|
126
|
732 i = 0;
|
58
|
733 }
|
|
734
|
198
|
735 if (ngx_hash_find(&plcf->headers_set_hash, header[i].hash,
|
|
736 header[i].lowcase_key, header[i].key.len))
|
58
|
737 {
|
|
738 continue;
|
|
739 }
|
|
740
|
|
741 len += header[i].key.len + sizeof(": ") - 1
|
|
742 + header[i].value.len + sizeof(CRLF) - 1;
|
|
743 }
|
|
744 }
|
|
745
|
|
746
|
|
747 b = ngx_create_temp_buf(r->pool, len);
|
|
748 if (b == NULL) {
|
|
749 return NGX_ERROR;
|
|
750 }
|
|
751
|
|
752 cl = ngx_alloc_chain_link(r->pool);
|
|
753 if (cl == NULL) {
|
|
754 return NGX_ERROR;
|
|
755 }
|
|
756
|
|
757 cl->buf = b;
|
|
758
|
|
759
|
|
760 /* the request line */
|
|
761
|
122
|
762 b->last = ngx_copy(b->last, method.data, method.len);
|
58
|
763
|
104
|
764 u->uri.data = b->last;
|
|
765
|
348
|
766 if (plcf->proxy_lengths) {
|
|
767 b->last = ngx_copy(b->last, ctx->vars.uri.data, ctx->vars.uri.len);
|
|
768
|
|
769 } else if (unparsed_uri) {
|
122
|
770 b->last = ngx_copy(b->last, r->unparsed_uri.data, r->unparsed_uri.len);
|
|
771
|
58
|
772 } else {
|
104
|
773 if (r->valid_location) {
|
348
|
774 b->last = ngx_copy(b->last, ctx->vars.uri.data, ctx->vars.uri.len);
|
104
|
775 }
|
100
|
776
|
58
|
777 if (escape) {
|
|
778 ngx_escape_uri(b->last, r->uri.data + loc_len,
|
|
779 r->uri.len - loc_len, NGX_ESCAPE_URI);
|
|
780 b->last += r->uri.len - loc_len + escape;
|
|
781
|
126
|
782 } else {
|
122
|
783 b->last = ngx_copy(b->last, r->uri.data + loc_len,
|
|
784 r->uri.len - loc_len);
|
58
|
785 }
|
|
786
|
|
787 if (r->args.len > 0) {
|
|
788 *b->last++ = '?';
|
122
|
789 b->last = ngx_copy(b->last, r->args.data, r->args.len);
|
58
|
790 }
|
|
791 }
|
|
792
|
104
|
793 u->uri.len = b->last - u->uri.data;
|
|
794
|
58
|
795 b->last = ngx_cpymem(b->last, ngx_http_proxy_version,
|
|
796 sizeof(ngx_http_proxy_version) - 1);
|
|
797
|
126
|
798 ngx_memzero(&e, sizeof(ngx_http_script_engine_t));
|
58
|
799
|
|
800 e.ip = plcf->headers_set->elts;
|
|
801 e.pos = b->last;
|
|
802 e.request = r;
|
122
|
803 e.flushed = 1;
|
58
|
804
|
|
805 le.ip = plcf->headers_set_len->elts;
|
|
806
|
|
807 while (*(uintptr_t *) le.ip) {
|
|
808 lcode = *(ngx_http_script_len_code_pt *) le.ip;
|
64
|
809
|
|
810 /* skip the header line name length */
|
|
811 (void) lcode(&le);
|
58
|
812
|
|
813 if (*(ngx_http_script_len_code_pt *) le.ip) {
|
|
814
|
|
815 for (len = 0; *(uintptr_t *) le.ip; len += lcode(&le)) {
|
|
816 lcode = *(ngx_http_script_len_code_pt *) le.ip;
|
|
817 }
|
|
818
|
|
819 e.skip = (len == sizeof(CRLF) - 1) ? 1 : 0;
|
|
820
|
|
821 } else {
|
|
822 e.skip = 0;
|
|
823 }
|
|
824
|
|
825 le.ip += sizeof(uintptr_t);
|
|
826
|
|
827 while (*(uintptr_t *) e.ip) {
|
|
828 code = *(ngx_http_script_code_pt *) e.ip;
|
|
829 code((ngx_http_script_engine_t *) &e);
|
126
|
830 }
|
58
|
831 e.ip += sizeof(uintptr_t);
|
|
832 }
|
|
833
|
|
834 b->last = e.pos;
|
|
835
|
|
836
|
|
837 if (plcf->upstream.pass_request_headers) {
|
|
838 part = &r->headers_in.headers.part;
|
|
839 header = part->elts;
|
126
|
840
|
58
|
841 for (i = 0; /* void */; i++) {
|
|
842
|
|
843 if (i >= part->nelts) {
|
|
844 if (part->next == NULL) {
|
|
845 break;
|
|
846 }
|
|
847
|
|
848 part = part->next;
|
|
849 header = part->elts;
|
126
|
850 i = 0;
|
58
|
851 }
|
|
852
|
198
|
853 if (ngx_hash_find(&plcf->headers_set_hash, header[i].hash,
|
|
854 header[i].lowcase_key, header[i].key.len))
|
58
|
855 {
|
|
856 continue;
|
|
857 }
|
|
858
|
122
|
859 b->last = ngx_copy(b->last, header[i].key.data, header[i].key.len);
|
58
|
860
|
|
861 *b->last++ = ':'; *b->last++ = ' ';
|
|
862
|
122
|
863 b->last = ngx_copy(b->last, header[i].value.data,
|
|
864 header[i].value.len);
|
58
|
865
|
|
866 *b->last++ = CR; *b->last++ = LF;
|
|
867
|
|
868 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
869 "http proxy header: \"%V: %V\"",
|
|
870 &header[i].key, &header[i].value);
|
|
871 }
|
|
872 }
|
|
873
|
126
|
874
|
58
|
875 /* add "\r\n" at the header end */
|
|
876 *b->last++ = CR; *b->last++ = LF;
|
|
877
|
126
|
878 if (plcf->body_set) {
|
|
879 e.ip = plcf->body_set->elts;
|
|
880 e.pos = b->last;
|
|
881
|
|
882 while (*(uintptr_t *) e.ip) {
|
|
883 code = *(ngx_http_script_code_pt *) e.ip;
|
|
884 code((ngx_http_script_engine_t *) &e);
|
|
885 }
|
128
|
886
|
|
887 b->last = e.pos;
|
126
|
888 }
|
|
889
|
358
|
890 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
891 "http proxy header:\n\"%*s\"",
|
|
892 (size_t) (b->last - b->pos), b->pos);
|
58
|
893
|
126
|
894 if (plcf->body_set == NULL && plcf->upstream.pass_request_body) {
|
58
|
895
|
|
896 body = u->request_bufs;
|
|
897 u->request_bufs = cl;
|
|
898
|
|
899 while (body) {
|
|
900 b = ngx_alloc_buf(r->pool);
|
|
901 if (b == NULL) {
|
|
902 return NGX_ERROR;
|
|
903 }
|
|
904
|
|
905 ngx_memcpy(b, body->buf, sizeof(ngx_buf_t));
|
|
906
|
|
907 cl->next = ngx_alloc_chain_link(r->pool);
|
|
908 if (cl->next == NULL) {
|
|
909 return NGX_ERROR;
|
|
910 }
|
|
911
|
|
912 cl = cl->next;
|
|
913 cl->buf = b;
|
|
914
|
|
915 body = body->next;
|
|
916 }
|
|
917
|
160
|
918 b->flush = 1;
|
|
919
|
58
|
920 } else {
|
|
921 u->request_bufs = cl;
|
|
922 }
|
|
923
|
|
924 cl->next = NULL;
|
|
925
|
|
926 return NGX_OK;
|
|
927 }
|
|
928
|
|
929
|
|
930 static ngx_int_t
|
|
931 ngx_http_proxy_reinit_request(ngx_http_request_t *r)
|
|
932 {
|
348
|
933 ngx_http_proxy_ctx_t *ctx;
|
|
934
|
|
935 ctx = ngx_http_get_module_ctx(r, ngx_http_proxy_module);
|
|
936
|
|
937 if (ctx == NULL) {
|
58
|
938 return NGX_OK;
|
|
939 }
|
|
940
|
348
|
941 ctx->status = 0;
|
|
942 ctx->status_count = 0;
|
|
943 ctx->status_start = NULL;
|
|
944 ctx->status_end = NULL;
|
58
|
945
|
|
946 r->upstream->process_header = ngx_http_proxy_process_status_line;
|
|
947
|
|
948 return NGX_OK;
|
|
949 }
|
|
950
|
|
951
|
|
952 static ngx_int_t
|
|
953 ngx_http_proxy_process_status_line(ngx_http_request_t *r)
|
|
954 {
|
|
955 ngx_int_t rc;
|
|
956 ngx_http_upstream_t *u;
|
348
|
957 ngx_http_proxy_ctx_t *ctx;
|
|
958
|
|
959 ctx = ngx_http_get_module_ctx(r, ngx_http_proxy_module);
|
|
960
|
|
961 if (ctx == NULL) {
|
356
|
962 return NGX_ERROR;
|
58
|
963 }
|
|
964
|
348
|
965 rc = ngx_http_proxy_parse_status_line(r, ctx);
|
58
|
966
|
|
967 if (rc == NGX_AGAIN) {
|
|
968 return rc;
|
|
969 }
|
|
970
|
|
971 u = r->upstream;
|
|
972
|
|
973 if (rc == NGX_HTTP_PROXY_PARSE_NO_HEADER) {
|
|
974 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
126
|
975 "upstream sent no valid HTTP/1.0 header");
|
58
|
976
|
168
|
977 #if 0
|
58
|
978 if (u->accel) {
|
|
979 return NGX_HTTP_UPSTREAM_INVALID_HEADER;
|
|
980 }
|
168
|
981 #endif
|
58
|
982
|
|
983 r->http_version = NGX_HTTP_VERSION_9;
|
346
|
984 u->headers_in.status_n = NGX_HTTP_OK;
|
|
985 u->state->status = NGX_HTTP_OK;
|
126
|
986
|
58
|
987 return NGX_OK;
|
|
988 }
|
|
989
|
348
|
990 u->headers_in.status_n = ctx->status;
|
|
991 u->state->status = ctx->status;
|
|
992
|
|
993 u->headers_in.status_line.len = ctx->status_end - ctx->status_start;
|
382
|
994 u->headers_in.status_line.data = ngx_pnalloc(r->pool,
|
|
995 u->headers_in.status_line.len);
|
78
|
996 if (u->headers_in.status_line.data == NULL) {
|
356
|
997 return NGX_ERROR;
|
58
|
998 }
|
122
|
999
|
348
|
1000 ngx_memcpy(u->headers_in.status_line.data, ctx->status_start,
|
78
|
1001 u->headers_in.status_line.len);
|
58
|
1002
|
|
1003 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
1004 "http proxy status %ui \"%V\"",
|
270
|
1005 u->headers_in.status_n, &u->headers_in.status_line);
|
58
|
1006
|
|
1007 u->process_header = ngx_http_proxy_process_header;
|
|
1008
|
|
1009 return ngx_http_proxy_process_header(r);
|
|
1010 }
|
|
1011
|
|
1012
|
|
1013 static ngx_int_t
|
348
|
1014 ngx_http_proxy_parse_status_line(ngx_http_request_t *r,
|
|
1015 ngx_http_proxy_ctx_t *ctx)
|
58
|
1016 {
|
|
1017 u_char ch;
|
348
|
1018 u_char *p;
|
58
|
1019 ngx_http_upstream_t *u;
|
|
1020 enum {
|
|
1021 sw_start = 0,
|
|
1022 sw_H,
|
|
1023 sw_HT,
|
|
1024 sw_HTT,
|
|
1025 sw_HTTP,
|
|
1026 sw_first_major_digit,
|
|
1027 sw_major_digit,
|
|
1028 sw_first_minor_digit,
|
|
1029 sw_minor_digit,
|
|
1030 sw_status,
|
|
1031 sw_space_after_status,
|
|
1032 sw_status_text,
|
|
1033 sw_almost_done
|
126
|
1034 } state;
|
58
|
1035
|
|
1036 u = r->upstream;
|
|
1037
|
|
1038 state = r->state;
|
|
1039
|
348
|
1040 for (p = u->buffer.pos; p < u->buffer.last; p++) {
|
|
1041 ch = *p;
|
58
|
1042
|
|
1043 switch (state) {
|
|
1044
|
|
1045 /* "HTTP/" */
|
|
1046 case sw_start:
|
|
1047 switch (ch) {
|
126
|
1048 case 'H':
|
58
|
1049 state = sw_H;
|
|
1050 break;
|
|
1051 default:
|
|
1052 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
1053 }
|
|
1054 break;
|
|
1055
|
126
|
1056 case sw_H:
|
58
|
1057 switch (ch) {
|
126
|
1058 case 'T':
|
58
|
1059 state = sw_HT;
|
|
1060 break;
|
|
1061 default:
|
|
1062 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
1063 }
|
|
1064 break;
|
|
1065
|
|
1066 case sw_HT:
|
|
1067 switch (ch) {
|
126
|
1068 case 'T':
|
58
|
1069 state = sw_HTT;
|
|
1070 break;
|
|
1071 default:
|
|
1072 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
1073 }
|
|
1074 break;
|
|
1075
|
|
1076 case sw_HTT:
|
|
1077 switch (ch) {
|
126
|
1078 case 'P':
|
58
|
1079 state = sw_HTTP;
|
|
1080 break;
|
|
1081 default:
|
|
1082 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
1083 }
|
|
1084 break;
|
|
1085
|
|
1086 case sw_HTTP:
|
|
1087 switch (ch) {
|
126
|
1088 case '/':
|
58
|
1089 state = sw_first_major_digit;
|
|
1090 break;
|
|
1091 default:
|
|
1092 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
1093 }
|
|
1094 break;
|
|
1095
|
|
1096 /* the first digit of major HTTP version */
|
|
1097 case sw_first_major_digit:
|
|
1098 if (ch < '1' || ch > '9') {
|
|
1099 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
1100 }
|
|
1101
|
|
1102 state = sw_major_digit;
|
|
1103 break;
|
|
1104
|
|
1105 /* the major HTTP version or dot */
|
|
1106 case sw_major_digit:
|
|
1107 if (ch == '.') {
|
|
1108 state = sw_first_minor_digit;
|
|
1109 break;
|
|
1110 }
|
|
1111
|
|
1112 if (ch < '0' || ch > '9') {
|
|
1113 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
1114 }
|
|
1115
|
|
1116 break;
|
|
1117
|
|
1118 /* the first digit of minor HTTP version */
|
|
1119 case sw_first_minor_digit:
|
|
1120 if (ch < '0' || ch > '9') {
|
|
1121 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
1122 }
|
|
1123
|
|
1124 state = sw_minor_digit;
|
|
1125 break;
|
|
1126
|
|
1127 /* the minor HTTP version or the end of the request line */
|
|
1128 case sw_minor_digit:
|
|
1129 if (ch == ' ') {
|
|
1130 state = sw_status;
|
|
1131 break;
|
|
1132 }
|
|
1133
|
|
1134 if (ch < '0' || ch > '9') {
|
|
1135 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
1136 }
|
|
1137
|
|
1138 break;
|
|
1139
|
|
1140 /* HTTP status code */
|
|
1141 case sw_status:
|
168
|
1142 if (ch == ' ') {
|
|
1143 break;
|
|
1144 }
|
|
1145
|
58
|
1146 if (ch < '0' || ch > '9') {
|
|
1147 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
1148 }
|
|
1149
|
348
|
1150 ctx->status = ctx->status * 10 + ch - '0';
|
|
1151
|
|
1152 if (++ctx->status_count == 3) {
|
58
|
1153 state = sw_space_after_status;
|
348
|
1154 ctx->status_start = p - 2;
|
58
|
1155 }
|
|
1156
|
|
1157 break;
|
|
1158
|
|
1159 /* space or end of line */
|
|
1160 case sw_space_after_status:
|
|
1161 switch (ch) {
|
126
|
1162 case ' ':
|
58
|
1163 state = sw_status_text;
|
|
1164 break;
|
|
1165 case '.': /* IIS may send 403.1, 403.2, etc */
|
|
1166 state = sw_status_text;
|
|
1167 break;
|
|
1168 case CR:
|
|
1169 state = sw_almost_done;
|
|
1170 break;
|
|
1171 case LF:
|
|
1172 goto done;
|
|
1173 default:
|
|
1174 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
1175 }
|
|
1176 break;
|
|
1177
|
|
1178 /* any text until end of line */
|
|
1179 case sw_status_text:
|
|
1180 switch (ch) {
|
|
1181 case CR:
|
|
1182 state = sw_almost_done;
|
|
1183
|
|
1184 break;
|
|
1185 case LF:
|
|
1186 goto done;
|
|
1187 }
|
|
1188 break;
|
|
1189
|
76
|
1190 /* end of status line */
|
58
|
1191 case sw_almost_done:
|
348
|
1192 ctx->status_end = p - 1;
|
58
|
1193 switch (ch) {
|
|
1194 case LF:
|
|
1195 goto done;
|
|
1196 default:
|
|
1197 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
1198 }
|
|
1199 }
|
|
1200 }
|
|
1201
|
348
|
1202 u->buffer.pos = p;
|
58
|
1203 r->state = state;
|
|
1204
|
|
1205 return NGX_AGAIN;
|
|
1206
|
|
1207 done:
|
|
1208
|
348
|
1209 u->buffer.pos = p + 1;
|
|
1210
|
|
1211 if (ctx->status_end == NULL) {
|
|
1212 ctx->status_end = p;
|
58
|
1213 }
|
|
1214
|
|
1215 r->state = sw_start;
|
|
1216
|
|
1217 return NGX_OK;
|
|
1218 }
|
|
1219
|
|
1220
|
|
1221 static ngx_int_t
|
|
1222 ngx_http_proxy_process_header(ngx_http_request_t *r)
|
|
1223 {
|
|
1224 ngx_int_t rc;
|
|
1225 ngx_table_elt_t *h;
|
|
1226 ngx_http_upstream_header_t *hh;
|
|
1227 ngx_http_upstream_main_conf_t *umcf;
|
|
1228
|
|
1229 umcf = ngx_http_get_module_main_conf(r, ngx_http_upstream_module);
|
|
1230
|
378
|
1231 for ( ;; ) {
|
58
|
1232
|
412
|
1233 rc = ngx_http_parse_header_line(r, &r->upstream->buffer, 1);
|
58
|
1234
|
|
1235 if (rc == NGX_OK) {
|
|
1236
|
|
1237 /* a header line has been parsed successfully */
|
|
1238
|
|
1239 h = ngx_list_push(&r->upstream->headers_in.headers);
|
|
1240 if (h == NULL) {
|
356
|
1241 return NGX_ERROR;
|
58
|
1242 }
|
|
1243
|
|
1244 h->hash = r->header_hash;
|
|
1245
|
|
1246 h->key.len = r->header_name_end - r->header_name_start;
|
|
1247 h->value.len = r->header_end - r->header_start;
|
|
1248
|
382
|
1249 h->key.data = ngx_pnalloc(r->pool,
|
198
|
1250 h->key.len + 1 + h->value.len + 1 + h->key.len);
|
58
|
1251 if (h->key.data == NULL) {
|
356
|
1252 return NGX_ERROR;
|
58
|
1253 }
|
|
1254
|
|
1255 h->value.data = h->key.data + h->key.len + 1;
|
198
|
1256 h->lowcase_key = h->key.data + h->key.len + 1 + h->value.len + 1;
|
58
|
1257
|
|
1258 ngx_cpystrn(h->key.data, r->header_name_start, h->key.len + 1);
|
|
1259 ngx_cpystrn(h->value.data, r->header_start, h->value.len + 1);
|
|
1260
|
198
|
1261 if (h->key.len == r->lowcase_index) {
|
|
1262 ngx_memcpy(h->lowcase_key, r->lowcase_header, h->key.len);
|
|
1263
|
|
1264 } else {
|
392
|
1265 ngx_strlow(h->lowcase_key, h->key.data, h->key.len);
|
58
|
1266 }
|
|
1267
|
198
|
1268 hh = ngx_hash_find(&umcf->headers_in_hash, h->hash,
|
|
1269 h->lowcase_key, h->key.len);
|
|
1270
|
|
1271 if (hh && hh->handler(r, h, hh->offset) != NGX_OK) {
|
356
|
1272 return NGX_ERROR;
|
198
|
1273 }
|
|
1274
|
58
|
1275 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
1276 "http proxy header: \"%V: %V\"",
|
|
1277 &h->key, &h->value);
|
|
1278
|
|
1279 continue;
|
|
1280 }
|
|
1281
|
|
1282 if (rc == NGX_HTTP_PARSE_HEADER_DONE) {
|
|
1283
|
|
1284 /* a whole header has been parsed successfully */
|
|
1285
|
|
1286 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
1287 "http proxy header done");
|
|
1288
|
198
|
1289 /*
|
|
1290 * if no "Server" and "Date" in header line,
|
|
1291 * then add the special empty headers
|
|
1292 */
|
|
1293
|
|
1294 if (r->upstream->headers_in.server == NULL) {
|
|
1295 h = ngx_list_push(&r->upstream->headers_in.headers);
|
|
1296 if (h == NULL) {
|
356
|
1297 return NGX_ERROR;
|
198
|
1298 }
|
|
1299
|
|
1300 h->hash = ngx_hash(ngx_hash(ngx_hash(ngx_hash(
|
|
1301 ngx_hash('s', 'e'), 'r'), 'v'), 'e'), 'r');
|
|
1302
|
|
1303 h->key.len = sizeof("Server") - 1;
|
|
1304 h->key.data = (u_char *) "Server";
|
|
1305 h->value.len = 0;
|
|
1306 h->value.data = NULL;
|
|
1307 h->lowcase_key = (u_char *) "server";
|
|
1308 }
|
|
1309
|
|
1310 if (r->upstream->headers_in.date == NULL) {
|
|
1311 h = ngx_list_push(&r->upstream->headers_in.headers);
|
|
1312 if (h == NULL) {
|
356
|
1313 return NGX_ERROR;
|
198
|
1314 }
|
|
1315
|
|
1316 h->hash = ngx_hash(ngx_hash(ngx_hash('d', 'a'), 't'), 'e');
|
|
1317
|
|
1318 h->key.len = sizeof("Date") - 1;
|
|
1319 h->key.data = (u_char *) "Date";
|
|
1320 h->value.len = 0;
|
|
1321 h->value.data = NULL;
|
|
1322 h->lowcase_key = (u_char *) "date";
|
|
1323 }
|
|
1324
|
58
|
1325 return NGX_OK;
|
|
1326 }
|
|
1327
|
70
|
1328 if (rc == NGX_AGAIN) {
|
|
1329 return NGX_AGAIN;
|
|
1330 }
|
|
1331
|
58
|
1332 /* there was error while a header line parsing */
|
|
1333
|
|
1334 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
168
|
1335 "upstream sent invalid header");
|
58
|
1336
|
|
1337 return NGX_HTTP_UPSTREAM_INVALID_HEADER;
|
|
1338 }
|
|
1339 }
|
|
1340
|
|
1341
|
|
1342 static void
|
|
1343 ngx_http_proxy_abort_request(ngx_http_request_t *r)
|
|
1344 {
|
|
1345 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
1346 "abort http proxy request");
|
126
|
1347
|
58
|
1348 return;
|
|
1349 }
|
|
1350
|
|
1351
|
|
1352 static void
|
|
1353 ngx_http_proxy_finalize_request(ngx_http_request_t *r, ngx_int_t rc)
|
126
|
1354 {
|
58
|
1355 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
1356 "finalize http proxy request");
|
|
1357
|
|
1358 return;
|
|
1359 }
|
|
1360
|
|
1361
|
122
|
1362 static ngx_int_t
|
|
1363 ngx_http_proxy_host_variable(ngx_http_request_t *r,
|
|
1364 ngx_http_variable_value_t *v, uintptr_t data)
|
58
|
1365 {
|
348
|
1366 ngx_http_proxy_ctx_t *ctx;
|
|
1367
|
|
1368 ctx = ngx_http_get_module_ctx(r, ngx_http_proxy_module);
|
|
1369
|
|
1370 if (ctx == NULL) {
|
|
1371 v->not_found = 1;
|
|
1372 return NGX_OK;
|
|
1373 }
|
|
1374
|
|
1375 v->len = ctx->vars.host_header.len;
|
126
|
1376 v->valid = 1;
|
340
|
1377 v->no_cacheable = 0;
|
122
|
1378 v->not_found = 0;
|
348
|
1379 v->data = ctx->vars.host_header.data;
|
58
|
1380
|
122
|
1381 return NGX_OK;
|
58
|
1382 }
|
|
1383
|
|
1384
|
122
|
1385 static ngx_int_t
|
|
1386 ngx_http_proxy_port_variable(ngx_http_request_t *r,
|
|
1387 ngx_http_variable_value_t *v, uintptr_t data)
|
58
|
1388 {
|
348
|
1389 ngx_http_proxy_ctx_t *ctx;
|
|
1390
|
|
1391 ctx = ngx_http_get_module_ctx(r, ngx_http_proxy_module);
|
|
1392
|
|
1393 if (ctx == NULL) {
|
|
1394 v->not_found = 1;
|
|
1395 return NGX_OK;
|
|
1396 }
|
|
1397
|
|
1398 v->len = ctx->vars.port.len;
|
126
|
1399 v->valid = 1;
|
340
|
1400 v->no_cacheable = 0;
|
122
|
1401 v->not_found = 0;
|
348
|
1402 v->data = ctx->vars.port.data;
|
58
|
1403
|
122
|
1404 return NGX_OK;
|
58
|
1405 }
|
|
1406
|
|
1407
|
122
|
1408 static ngx_int_t
|
58
|
1409 ngx_http_proxy_add_x_forwarded_for_variable(ngx_http_request_t *r,
|
122
|
1410 ngx_http_variable_value_t *v, uintptr_t data)
|
58
|
1411 {
|
122
|
1412 u_char *p;
|
58
|
1413
|
126
|
1414 v->valid = 1;
|
340
|
1415 v->no_cacheable = 0;
|
122
|
1416 v->not_found = 0;
|
58
|
1417
|
|
1418 if (r->headers_in.x_forwarded_for == NULL) {
|
122
|
1419 v->len = r->connection->addr_text.len;
|
|
1420 v->data = r->connection->addr_text.data;
|
|
1421 return NGX_OK;
|
58
|
1422 }
|
|
1423
|
122
|
1424 v->len = r->headers_in.x_forwarded_for->value.len
|
|
1425 + sizeof(", ") - 1 + r->connection->addr_text.len;
|
58
|
1426
|
382
|
1427 p = ngx_pnalloc(r->pool, v->len);
|
58
|
1428 if (p == NULL) {
|
122
|
1429 return NGX_ERROR;
|
58
|
1430 }
|
|
1431
|
122
|
1432 v->data = p;
|
58
|
1433
|
122
|
1434 p = ngx_copy(p, r->headers_in.x_forwarded_for->value.data,
|
|
1435 r->headers_in.x_forwarded_for->value.len);
|
58
|
1436
|
|
1437 *p++ = ','; *p++ = ' ';
|
|
1438
|
|
1439 ngx_memcpy(p, r->connection->addr_text.data, r->connection->addr_text.len);
|
|
1440
|
122
|
1441 return NGX_OK;
|
58
|
1442 }
|
|
1443
|
|
1444
|
|
1445 static ngx_int_t
|
126
|
1446 ngx_http_proxy_internal_body_length_variable(ngx_http_request_t *r,
|
|
1447 ngx_http_variable_value_t *v, uintptr_t data)
|
|
1448 {
|
348
|
1449 ngx_http_proxy_ctx_t *ctx;
|
|
1450
|
|
1451 ctx = ngx_http_get_module_ctx(r, ngx_http_proxy_module);
|
|
1452
|
|
1453 if (ctx == NULL) {
|
126
|
1454 v->not_found = 1;
|
|
1455 return NGX_OK;
|
|
1456 }
|
|
1457
|
|
1458 v->valid = 1;
|
340
|
1459 v->no_cacheable = 0;
|
126
|
1460 v->not_found = 0;
|
|
1461
|
382
|
1462 v->data = ngx_pnalloc(r->connection->pool, NGX_SIZE_T_LEN);
|
126
|
1463
|
|
1464 if (v->data == NULL) {
|
|
1465 return NGX_ERROR;
|
|
1466 }
|
|
1467
|
348
|
1468 v->len = ngx_sprintf(v->data, "%uz", ctx->internal_body_length) - v->data;
|
126
|
1469
|
|
1470 return NGX_OK;
|
|
1471 }
|
|
1472
|
|
1473
|
|
1474 static ngx_int_t
|
58
|
1475 ngx_http_proxy_rewrite_redirect(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
1476 size_t prefix)
|
|
1477 {
|
|
1478 ngx_int_t rc;
|
|
1479 ngx_uint_t i;
|
|
1480 ngx_http_proxy_loc_conf_t *plcf;
|
|
1481 ngx_http_proxy_redirect_t *pr;
|
|
1482
|
|
1483 plcf = ngx_http_get_module_loc_conf(r, ngx_http_proxy_module);
|
|
1484
|
|
1485 pr = plcf->redirects->elts;
|
|
1486
|
|
1487 if (pr == NULL) {
|
|
1488 return NGX_DECLINED;
|
|
1489 }
|
|
1490
|
|
1491 for (i = 0; i < plcf->redirects->nelts; i++) {
|
154
|
1492 rc = pr[i].handler(r, h, prefix, &pr[i]);
|
58
|
1493
|
|
1494 if (rc != NGX_DECLINED) {
|
|
1495 return rc;
|
|
1496 }
|
|
1497 }
|
|
1498
|
|
1499 return NGX_DECLINED;
|
|
1500 }
|
|
1501
|
|
1502
|
|
1503 static ngx_int_t
|
|
1504 ngx_http_proxy_rewrite_redirect_text(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
1505 size_t prefix, ngx_http_proxy_redirect_t *pr)
|
|
1506 {
|
|
1507 size_t len;
|
|
1508 u_char *data, *p;
|
|
1509
|
|
1510 if (pr->redirect.len > h->value.len - prefix
|
|
1511 || ngx_rstrncmp(h->value.data + prefix, pr->redirect.data,
|
|
1512 pr->redirect.len) != 0)
|
|
1513 {
|
|
1514 return NGX_DECLINED;
|
|
1515 }
|
|
1516
|
|
1517 len = prefix + pr->replacement.text.len + h->value.len - pr->redirect.len;
|
|
1518
|
382
|
1519 data = ngx_pnalloc(r->pool, len);
|
58
|
1520 if (data == NULL) {
|
|
1521 return NGX_ERROR;
|
|
1522 }
|
|
1523
|
|
1524 p = data;
|
|
1525
|
122
|
1526 p = ngx_copy(p, h->value.data, prefix);
|
58
|
1527
|
202
|
1528 if (pr->replacement.text.len) {
|
|
1529 p = ngx_copy(p, pr->replacement.text.data, pr->replacement.text.len);
|
|
1530 }
|
58
|
1531
|
|
1532 ngx_memcpy(p, h->value.data + prefix + pr->redirect.len,
|
|
1533 h->value.len - pr->redirect.len - prefix);
|
|
1534
|
|
1535 h->value.len = len;
|
|
1536 h->value.data = data;
|
|
1537
|
|
1538 return NGX_OK;
|
|
1539 }
|
|
1540
|
|
1541
|
|
1542 static ngx_int_t
|
|
1543 ngx_http_proxy_rewrite_redirect_vars(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
1544 size_t prefix, ngx_http_proxy_redirect_t *pr)
|
|
1545 {
|
|
1546 size_t len;
|
|
1547 u_char *data, *p;
|
|
1548 ngx_http_script_code_pt code;
|
|
1549 ngx_http_script_engine_t e;
|
|
1550 ngx_http_script_len_code_pt lcode;
|
|
1551
|
|
1552 if (pr->redirect.len > h->value.len - prefix
|
|
1553 || ngx_rstrncmp(h->value.data + prefix, pr->redirect.data,
|
|
1554 pr->redirect.len) != 0)
|
|
1555 {
|
|
1556 return NGX_DECLINED;
|
|
1557 }
|
|
1558
|
|
1559 ngx_memzero(&e, sizeof(ngx_http_script_engine_t));
|
|
1560
|
|
1561 e.ip = pr->replacement.vars.lengths;
|
|
1562 e.request = r;
|
|
1563
|
238
|
1564 len = prefix + h->value.len - pr->redirect.len;
|
|
1565
|
|
1566 while (*(uintptr_t *) e.ip) {
|
58
|
1567 lcode = *(ngx_http_script_len_code_pt *) e.ip;
|
238
|
1568 len += lcode(&e);
|
58
|
1569 }
|
|
1570
|
382
|
1571 data = ngx_pnalloc(r->pool, len);
|
58
|
1572 if (data == NULL) {
|
|
1573 return NGX_ERROR;
|
|
1574 }
|
|
1575
|
|
1576 p = data;
|
|
1577
|
122
|
1578 p = ngx_copy(p, h->value.data, prefix);
|
58
|
1579
|
|
1580 e.ip = pr->replacement.vars.values;
|
|
1581 e.pos = p;
|
|
1582
|
|
1583 while (*(uintptr_t *) e.ip) {
|
|
1584 code = *(ngx_http_script_code_pt *) e.ip;
|
|
1585 code(&e);
|
|
1586 }
|
|
1587
|
238
|
1588 ngx_memcpy(e.pos, h->value.data + prefix + pr->redirect.len,
|
|
1589 h->value.len - pr->redirect.len - prefix);
|
|
1590
|
58
|
1591 h->value.len = len;
|
|
1592 h->value.data = data;
|
|
1593
|
|
1594 return NGX_OK;
|
|
1595 }
|
|
1596
|
|
1597
|
|
1598 static ngx_int_t
|
|
1599 ngx_http_proxy_add_variables(ngx_conf_t *cf)
|
|
1600 {
|
|
1601 ngx_http_variable_t *var, *v;
|
|
1602
|
|
1603 for (v = ngx_http_proxy_vars; v->name.len; v++) {
|
|
1604 var = ngx_http_add_variable(cf, &v->name, v->flags);
|
|
1605 if (var == NULL) {
|
|
1606 return NGX_ERROR;
|
|
1607 }
|
|
1608
|
186
|
1609 var->get_handler = v->get_handler;
|
58
|
1610 var->data = v->data;
|
|
1611 }
|
|
1612
|
|
1613 return NGX_OK;
|
|
1614 }
|
|
1615
|
|
1616
|
|
1617 static void *
|
|
1618 ngx_http_proxy_create_loc_conf(ngx_conf_t *cf)
|
|
1619 {
|
|
1620 ngx_http_proxy_loc_conf_t *conf;
|
|
1621
|
|
1622 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_proxy_loc_conf_t));
|
|
1623 if (conf == NULL) {
|
|
1624 return NGX_CONF_ERROR;
|
|
1625 }
|
|
1626
|
|
1627 /*
|
|
1628 * set by ngx_pcalloc():
|
|
1629 *
|
|
1630 * conf->upstream.bufs.num = 0;
|
|
1631 * conf->upstream.next_upstream = 0;
|
|
1632 * conf->upstream.temp_path = NULL;
|
198
|
1633 * conf->upstream.hide_headers_hash = { NULL, 0 };
|
58
|
1634 * conf->upstream.schema = { 0, NULL };
|
|
1635 * conf->upstream.uri = { 0, NULL };
|
|
1636 * conf->upstream.location = NULL;
|
320
|
1637 * conf->upstream.store_lengths = NULL;
|
|
1638 * conf->upstream.store_values = NULL;
|
58
|
1639 *
|
110
|
1640 * conf->method = NULL;
|
58
|
1641 * conf->headers_source = NULL;
|
|
1642 * conf->headers_set_len = NULL;
|
|
1643 * conf->headers_set = NULL;
|
|
1644 * conf->headers_set_hash = NULL;
|
126
|
1645 * conf->body_set_len = NULL;
|
|
1646 * conf->body_set = NULL;
|
|
1647 * conf->body_source = { 0, NULL };
|
58
|
1648 * conf->rewrite_locations = NULL;
|
|
1649 */
|
126
|
1650
|
320
|
1651 conf->upstream.store = NGX_CONF_UNSET;
|
|
1652 conf->upstream.store_access = NGX_CONF_UNSET_UINT;
|
130
|
1653 conf->upstream.buffering = NGX_CONF_UNSET;
|
178
|
1654 conf->upstream.ignore_client_abort = NGX_CONF_UNSET;
|
130
|
1655
|
58
|
1656 conf->upstream.connect_timeout = NGX_CONF_UNSET_MSEC;
|
|
1657 conf->upstream.send_timeout = NGX_CONF_UNSET_MSEC;
|
|
1658 conf->upstream.read_timeout = NGX_CONF_UNSET_MSEC;
|
|
1659
|
|
1660 conf->upstream.send_lowat = NGX_CONF_UNSET_SIZE;
|
130
|
1661 conf->upstream.buffer_size = NGX_CONF_UNSET_SIZE;
|
78
|
1662
|
|
1663 conf->upstream.busy_buffers_size_conf = NGX_CONF_UNSET_SIZE;
|
126
|
1664 conf->upstream.max_temp_file_size_conf = NGX_CONF_UNSET_SIZE;
|
78
|
1665 conf->upstream.temp_file_write_size_conf = NGX_CONF_UNSET_SIZE;
|
58
|
1666
|
|
1667 conf->upstream.pass_request_headers = NGX_CONF_UNSET;
|
|
1668 conf->upstream.pass_request_body = NGX_CONF_UNSET;
|
110
|
1669
|
356
|
1670 conf->upstream.hide_headers = NGX_CONF_UNSET_PTR;
|
|
1671 conf->upstream.pass_headers = NGX_CONF_UNSET_PTR;
|
|
1672
|
206
|
1673 conf->upstream.intercept_errors = NGX_CONF_UNSET;
|
398
|
1674 #if (NGX_HTTP_SSL)
|
|
1675 conf->upstream.ssl_session_reuse = NGX_CONF_UNSET;
|
|
1676 #endif
|
58
|
1677
|
|
1678 /* "proxy_cyclic_temp_file" is disabled */
|
|
1679 conf->upstream.cyclic_temp_file = 0;
|
|
1680
|
|
1681 conf->redirect = NGX_CONF_UNSET;
|
198
|
1682 conf->upstream.change_buffering = 1;
|
58
|
1683
|
298
|
1684 conf->headers_hash_max_size = NGX_CONF_UNSET_UINT;
|
|
1685 conf->headers_hash_bucket_size = NGX_CONF_UNSET_UINT;
|
|
1686
|
58
|
1687 return conf;
|
|
1688 }
|
|
1689
|
|
1690
|
|
1691 static char *
|
|
1692 ngx_http_proxy_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child)
|
|
1693 {
|
|
1694 ngx_http_proxy_loc_conf_t *prev = parent;
|
|
1695 ngx_http_proxy_loc_conf_t *conf = child;
|
|
1696
|
|
1697 u_char *p;
|
|
1698 size_t size;
|
|
1699 uintptr_t *code;
|
356
|
1700 ngx_uint_t i;
|
198
|
1701 ngx_keyval_t *src, *s, *h;
|
|
1702 ngx_hash_key_t *hk;
|
|
1703 ngx_hash_init_t hash;
|
58
|
1704 ngx_http_proxy_redirect_t *pr;
|
|
1705 ngx_http_script_compile_t sc;
|
|
1706 ngx_http_script_copy_code_t *copy;
|
|
1707
|
320
|
1708 if (conf->upstream.store != 0) {
|
|
1709 ngx_conf_merge_value(conf->upstream.store,
|
|
1710 prev->upstream.store, 0);
|
|
1711
|
|
1712 if (conf->upstream.store_lengths == NULL) {
|
|
1713 conf->upstream.store_lengths = prev->upstream.store_lengths;
|
|
1714 conf->upstream.store_values = prev->upstream.store_values;
|
|
1715 }
|
|
1716 }
|
|
1717
|
|
1718 ngx_conf_merge_uint_value(conf->upstream.store_access,
|
|
1719 prev->upstream.store_access, 0600);
|
318
|
1720
|
130
|
1721 ngx_conf_merge_value(conf->upstream.buffering,
|
|
1722 prev->upstream.buffering, 1);
|
|
1723
|
178
|
1724 ngx_conf_merge_value(conf->upstream.ignore_client_abort,
|
|
1725 prev->upstream.ignore_client_abort, 0);
|
|
1726
|
58
|
1727 ngx_conf_merge_msec_value(conf->upstream.connect_timeout,
|
|
1728 prev->upstream.connect_timeout, 60000);
|
|
1729
|
|
1730 ngx_conf_merge_msec_value(conf->upstream.send_timeout,
|
|
1731 prev->upstream.send_timeout, 60000);
|
|
1732
|
|
1733 ngx_conf_merge_msec_value(conf->upstream.read_timeout,
|
|
1734 prev->upstream.read_timeout, 60000);
|
|
1735
|
|
1736 ngx_conf_merge_size_value(conf->upstream.send_lowat,
|
|
1737 prev->upstream.send_lowat, 0);
|
|
1738
|
130
|
1739 ngx_conf_merge_size_value(conf->upstream.buffer_size,
|
|
1740 prev->upstream.buffer_size,
|
58
|
1741 (size_t) ngx_pagesize);
|
|
1742
|
|
1743 ngx_conf_merge_bufs_value(conf->upstream.bufs, prev->upstream.bufs,
|
|
1744 8, ngx_pagesize);
|
|
1745
|
|
1746 if (conf->upstream.bufs.num < 2) {
|
126
|
1747 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
58
|
1748 "there must be at least 2 \"proxy_buffers\"");
|
|
1749 return NGX_CONF_ERROR;
|
|
1750 }
|
126
|
1751
|
58
|
1752
|
130
|
1753 size = conf->upstream.buffer_size;
|
126
|
1754 if (size < conf->upstream.bufs.size) {
|
58
|
1755 size = conf->upstream.bufs.size;
|
|
1756 }
|
|
1757
|
|
1758
|
78
|
1759 ngx_conf_merge_size_value(conf->upstream.busy_buffers_size_conf,
|
|
1760 prev->upstream.busy_buffers_size_conf,
|
58
|
1761 NGX_CONF_UNSET_SIZE);
|
|
1762
|
78
|
1763 if (conf->upstream.busy_buffers_size_conf == NGX_CONF_UNSET_SIZE) {
|
58
|
1764 conf->upstream.busy_buffers_size = 2 * size;
|
78
|
1765 } else {
|
|
1766 conf->upstream.busy_buffers_size =
|
|
1767 conf->upstream.busy_buffers_size_conf;
|
|
1768 }
|
126
|
1769
|
78
|
1770 if (conf->upstream.busy_buffers_size < size) {
|
58
|
1771 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
1772 "\"proxy_busy_buffers_size\" must be equal or bigger than "
|
288
|
1773 "maximum of the value of \"proxy_buffer_size\" and "
|
58
|
1774 "one of the \"proxy_buffers\"");
|
|
1775
|
|
1776 return NGX_CONF_ERROR;
|
78
|
1777 }
|
58
|
1778
|
78
|
1779 if (conf->upstream.busy_buffers_size
|
|
1780 > (conf->upstream.bufs.num - 1) * conf->upstream.bufs.size)
|
58
|
1781 {
|
|
1782 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
1783 "\"proxy_busy_buffers_size\" must be less than "
|
|
1784 "the size of all \"proxy_buffers\" minus one buffer");
|
|
1785
|
|
1786 return NGX_CONF_ERROR;
|
|
1787 }
|
78
|
1788
|
58
|
1789
|
78
|
1790 ngx_conf_merge_size_value(conf->upstream.temp_file_write_size_conf,
|
|
1791 prev->upstream.temp_file_write_size_conf,
|
58
|
1792 NGX_CONF_UNSET_SIZE);
|
|
1793
|
78
|
1794 if (conf->upstream.temp_file_write_size_conf == NGX_CONF_UNSET_SIZE) {
|
58
|
1795 conf->upstream.temp_file_write_size = 2 * size;
|
78
|
1796 } else {
|
|
1797 conf->upstream.temp_file_write_size =
|
|
1798 conf->upstream.temp_file_write_size_conf;
|
|
1799 }
|
126
|
1800
|
78
|
1801 if (conf->upstream.temp_file_write_size < size) {
|
58
|
1802 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
1803 "\"proxy_temp_file_write_size\" must be equal or bigger than "
|
288
|
1804 "maximum of the value of \"proxy_buffer_size\" and "
|
58
|
1805 "one of the \"proxy_buffers\"");
|
|
1806
|
|
1807 return NGX_CONF_ERROR;
|
|
1808 }
|
|
1809
|
78
|
1810 ngx_conf_merge_size_value(conf->upstream.max_temp_file_size_conf,
|
|
1811 prev->upstream.max_temp_file_size_conf,
|
58
|
1812 NGX_CONF_UNSET_SIZE);
|
|
1813
|
78
|
1814 if (conf->upstream.max_temp_file_size_conf == NGX_CONF_UNSET_SIZE) {
|
58
|
1815 conf->upstream.max_temp_file_size = 1024 * 1024 * 1024;
|
78
|
1816 } else {
|
|
1817 conf->upstream.max_temp_file_size =
|
|
1818 conf->upstream.max_temp_file_size_conf;
|
|
1819 }
|
58
|
1820
|
78
|
1821 if (conf->upstream.max_temp_file_size != 0
|
|
1822 && conf->upstream.max_temp_file_size < size)
|
58
|
1823 {
|
|
1824 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
110
|
1825 "\"proxy_max_temp_file_size\" must be equal to zero to disable "
|
58
|
1826 "the temporary files usage or must be equal or bigger than "
|
288
|
1827 "maximum of the value of \"proxy_buffer_size\" and "
|
110
|
1828 "one of the \"proxy_buffers\"");
|
58
|
1829
|
|
1830 return NGX_CONF_ERROR;
|
|
1831 }
|
|
1832
|
78
|
1833
|
58
|
1834 ngx_conf_merge_bitmask_value(conf->upstream.next_upstream,
|
|
1835 prev->upstream.next_upstream,
|
|
1836 (NGX_CONF_BITMASK_SET
|
|
1837 |NGX_HTTP_UPSTREAM_FT_ERROR
|
|
1838 |NGX_HTTP_UPSTREAM_FT_TIMEOUT));
|
|
1839
|
214
|
1840 if (conf->upstream.next_upstream & NGX_HTTP_UPSTREAM_FT_OFF) {
|
|
1841 conf->upstream.next_upstream = NGX_CONF_BITMASK_SET
|
|
1842 |NGX_HTTP_UPSTREAM_FT_OFF;
|
|
1843 }
|
|
1844
|
58
|
1845 ngx_conf_merge_path_value(conf->upstream.temp_path,
|
|
1846 prev->upstream.temp_path,
|
|
1847 NGX_HTTP_PROXY_TEMP_PATH, 1, 2, 0,
|
|
1848 ngx_garbage_collector_temp_handler, cf);
|
|
1849
|
110
|
1850 if (conf->method.len == 0) {
|
|
1851 conf->method = prev->method;
|
|
1852
|
|
1853 } else {
|
|
1854 conf->method.data[conf->method.len] = ' ';
|
|
1855 conf->method.len++;
|
58
|
1856 }
|
|
1857
|
|
1858 ngx_conf_merge_value(conf->upstream.pass_request_headers,
|
|
1859 prev->upstream.pass_request_headers, 1);
|
|
1860 ngx_conf_merge_value(conf->upstream.pass_request_body,
|
|
1861 prev->upstream.pass_request_body, 1);
|
|
1862
|
206
|
1863 ngx_conf_merge_value(conf->upstream.intercept_errors,
|
|
1864 prev->upstream.intercept_errors, 0);
|
58
|
1865
|
398
|
1866 #if (NGX_HTTP_SSL)
|
|
1867 ngx_conf_merge_value(conf->upstream.ssl_session_reuse,
|
|
1868 prev->upstream.ssl_session_reuse, 1);
|
|
1869 #endif
|
|
1870
|
58
|
1871 ngx_conf_merge_value(conf->redirect, prev->redirect, 1);
|
|
1872
|
|
1873 if (conf->redirect) {
|
|
1874
|
|
1875 if (conf->redirects == NULL) {
|
|
1876 conf->redirects = prev->redirects;
|
|
1877 }
|
|
1878
|
348
|
1879 if (conf->redirects == NULL && conf->url.data) {
|
58
|
1880
|
|
1881 conf->redirects = ngx_array_create(cf->pool, 1,
|
|
1882 sizeof(ngx_http_proxy_redirect_t));
|
|
1883 if (conf->redirects == NULL) {
|
|
1884 return NGX_CONF_ERROR;
|
|
1885 }
|
|
1886
|
|
1887 pr = ngx_array_push(conf->redirects);
|
|
1888 if (pr == NULL) {
|
|
1889 return NGX_CONF_ERROR;
|
|
1890 }
|
|
1891
|
|
1892 pr->handler = ngx_http_proxy_rewrite_redirect_text;
|
348
|
1893 pr->redirect = conf->url;
|
|
1894
|
|
1895 if (conf->vars.uri.len) {
|
|
1896 pr->replacement.text = conf->location;
|
202
|
1897
|
|
1898 } else {
|
|
1899 pr->replacement.text.len = 0;
|
|
1900 pr->replacement.text.data = NULL;
|
|
1901 }
|
58
|
1902 }
|
|
1903 }
|
|
1904
|
348
|
1905 /* STUB */
|
|
1906 if (prev->proxy_lengths) {
|
|
1907 conf->proxy_lengths = prev->proxy_lengths;
|
|
1908 conf->proxy_values = prev->proxy_values;
|
|
1909 }
|
|
1910
|
298
|
1911 ngx_conf_merge_uint_value(conf->headers_hash_max_size,
|
|
1912 prev->headers_hash_max_size, 512);
|
|
1913
|
|
1914 ngx_conf_merge_uint_value(conf->headers_hash_bucket_size,
|
|
1915 prev->headers_hash_bucket_size, 64);
|
|
1916
|
|
1917 conf->headers_hash_bucket_size = ngx_align(conf->headers_hash_bucket_size,
|
|
1918 ngx_cacheline_size);
|
|
1919
|
356
|
1920 hash.max_size = conf->headers_hash_max_size;
|
|
1921 hash.bucket_size = conf->headers_hash_bucket_size;
|
|
1922 hash.name = "proxy_headers_hash";
|
|
1923
|
|
1924 if (ngx_http_upstream_hide_headers_hash(cf, &conf->upstream,
|
|
1925 &prev->upstream,
|
|
1926 ngx_http_proxy_hide_headers, &hash)
|
198
|
1927 != NGX_OK)
|
|
1928 {
|
|
1929 return NGX_CONF_ERROR;
|
|
1930 }
|
|
1931
|
260
|
1932 if (conf->upstream.upstream == NULL) {
|
|
1933 conf->upstream.upstream = prev->upstream.upstream;
|
178
|
1934
|
348
|
1935 conf->vars = prev->vars;
|
178
|
1936 conf->upstream.schema = prev->upstream.schema;
|
58
|
1937 }
|
|
1938
|
126
|
1939
|
|
1940 if (conf->body_source.data == NULL) {
|
|
1941 conf->body_source = prev->body_source;
|
|
1942 conf->body_set_len = prev->body_set_len;
|
|
1943 conf->body_set = prev->body_set;
|
|
1944 }
|
|
1945
|
128
|
1946 if (conf->body_source.data && conf->body_set_len == NULL) {
|
126
|
1947
|
|
1948 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t));
|
|
1949
|
|
1950 sc.cf = cf;
|
|
1951 sc.source = &conf->body_source;
|
|
1952 sc.flushes = &conf->flushes;
|
|
1953 sc.lengths = &conf->body_set_len;
|
|
1954 sc.values = &conf->body_set;
|
|
1955 sc.complete_lengths = 1;
|
|
1956 sc.complete_values = 1;
|
|
1957
|
|
1958 if (ngx_http_script_compile(&sc) != NGX_OK) {
|
|
1959 return NGX_CONF_ERROR;
|
|
1960 }
|
|
1961
|
|
1962 if (conf->headers_source == NULL) {
|
|
1963 conf->headers_source = ngx_array_create(cf->pool, 4,
|
198
|
1964 sizeof(ngx_keyval_t));
|
126
|
1965 if (conf->headers_source == NULL) {
|
|
1966 return NGX_CONF_ERROR;
|
|
1967 }
|
|
1968 }
|
|
1969
|
|
1970 s = ngx_array_push(conf->headers_source);
|
|
1971 if (s == NULL) {
|
|
1972 return NGX_CONF_ERROR;
|
|
1973 }
|
|
1974
|
|
1975 s->key.len = sizeof("Content-Length") - 1;
|
|
1976 s->key.data = (u_char *) "Content-Length";
|
|
1977 s->value.len = sizeof("$proxy_internal_body_length") - 1;
|
|
1978 s->value.data = (u_char *) "$proxy_internal_body_length";
|
|
1979 }
|
|
1980
|
|
1981
|
58
|
1982 if (conf->headers_source == NULL) {
|
122
|
1983 conf->flushes = prev->flushes;
|
58
|
1984 conf->headers_set_len = prev->headers_set_len;
|
|
1985 conf->headers_set = prev->headers_set;
|
|
1986 conf->headers_set_hash = prev->headers_set_hash;
|
122
|
1987 conf->headers_source = prev->headers_source;
|
58
|
1988 }
|
|
1989
|
198
|
1990 if (conf->headers_set_hash.buckets) {
|
58
|
1991 return NGX_CONF_OK;
|
|
1992 }
|
|
1993
|
|
1994
|
198
|
1995 conf->headers_names = ngx_array_create(cf->pool, 4, sizeof(ngx_hash_key_t));
|
58
|
1996 if (conf->headers_names == NULL) {
|
|
1997 return NGX_CONF_ERROR;
|
|
1998 }
|
|
1999
|
|
2000 if (conf->headers_source == NULL) {
|
|
2001 conf->headers_source = ngx_array_create(cf->pool, 4,
|
198
|
2002 sizeof(ngx_keyval_t));
|
58
|
2003 if (conf->headers_source == NULL) {
|
|
2004 return NGX_CONF_ERROR;
|
|
2005 }
|
|
2006 }
|
|
2007
|
|
2008 conf->headers_set_len = ngx_array_create(cf->pool, 64, 1);
|
|
2009 if (conf->headers_set_len == NULL) {
|
|
2010 return NGX_CONF_ERROR;
|
|
2011 }
|
|
2012
|
|
2013 conf->headers_set = ngx_array_create(cf->pool, 512, 1);
|
|
2014 if (conf->headers_set == NULL) {
|
|
2015 return NGX_CONF_ERROR;
|
|
2016 }
|
|
2017
|
|
2018
|
|
2019 src = conf->headers_source->elts;
|
|
2020
|
|
2021 for (h = ngx_http_proxy_headers; h->key.len; h++) {
|
|
2022
|
|
2023 for (i = 0; i < conf->headers_source->nelts; i++) {
|
|
2024 if (ngx_strcasecmp(h->key.data, src[i].key.data) == 0) {
|
|
2025 goto next;
|
|
2026 }
|
|
2027 }
|
|
2028
|
|
2029 s = ngx_array_push(conf->headers_source);
|
|
2030 if (s == NULL) {
|
|
2031 return NGX_CONF_ERROR;
|
|
2032 }
|
|
2033
|
|
2034 *s = *h;
|
|
2035
|
66
|
2036 src = conf->headers_source->elts;
|
|
2037
|
58
|
2038 next:
|
|
2039
|
|
2040 continue;
|
|
2041 }
|
|
2042
|
126
|
2043
|
|
2044 src = conf->headers_source->elts;
|
58
|
2045 for (i = 0; i < conf->headers_source->nelts; i++) {
|
|
2046
|
198
|
2047 hk = ngx_array_push(conf->headers_names);
|
|
2048 if (hk == NULL) {
|
58
|
2049 return NGX_CONF_ERROR;
|
|
2050 }
|
|
2051
|
198
|
2052 hk->key = src[i].key;
|
|
2053 hk->key_hash = ngx_hash_key_lc(src[i].key.data, src[i].key.len);
|
|
2054 hk->value = (void *) 1;
|
58
|
2055
|
68
|
2056 if (src[i].value.len == 0) {
|
|
2057 continue;
|
|
2058 }
|
|
2059
|
58
|
2060 if (ngx_http_script_variables_count(&src[i].value) == 0) {
|
|
2061 copy = ngx_array_push_n(conf->headers_set_len,
|
|
2062 sizeof(ngx_http_script_copy_code_t));
|
|
2063 if (copy == NULL) {
|
|
2064 return NGX_CONF_ERROR;
|
|
2065 }
|
|
2066
|
|
2067 copy->code = (ngx_http_script_code_pt)
|
|
2068 ngx_http_script_copy_len_code;
|
|
2069 copy->len = src[i].key.len + sizeof(": ") - 1
|
|
2070 + src[i].value.len + sizeof(CRLF) - 1;
|
|
2071
|
|
2072
|
|
2073 size = (sizeof(ngx_http_script_copy_code_t)
|
|
2074 + src[i].key.len + sizeof(": ") - 1
|
|
2075 + src[i].value.len + sizeof(CRLF) - 1
|
|
2076 + sizeof(uintptr_t) - 1)
|
|
2077 & ~(sizeof(uintptr_t) - 1);
|
|
2078
|
|
2079 copy = ngx_array_push_n(conf->headers_set, size);
|
|
2080 if (copy == NULL) {
|
|
2081 return NGX_CONF_ERROR;
|
|
2082 }
|
|
2083
|
|
2084 copy->code = ngx_http_script_copy_code;
|
|
2085 copy->len = src[i].key.len + sizeof(": ") - 1
|
|
2086 + src[i].value.len + sizeof(CRLF) - 1;
|
|
2087
|
|
2088 p = (u_char *) copy + sizeof(ngx_http_script_copy_code_t);
|
|
2089
|
|
2090 p = ngx_cpymem(p, src[i].key.data, src[i].key.len);
|
|
2091 *p++ = ':'; *p++ = ' ';
|
|
2092 p = ngx_cpymem(p, src[i].value.data, src[i].value.len);
|
|
2093 *p++ = CR; *p = LF;
|
|
2094
|
|
2095 } else {
|
|
2096 copy = ngx_array_push_n(conf->headers_set_len,
|
|
2097 sizeof(ngx_http_script_copy_code_t));
|
|
2098 if (copy == NULL) {
|
|
2099 return NGX_CONF_ERROR;
|
|
2100 }
|
|
2101
|
|
2102 copy->code = (ngx_http_script_code_pt)
|
|
2103 ngx_http_script_copy_len_code;
|
|
2104 copy->len = src[i].key.len + sizeof(": ") - 1;
|
|
2105
|
|
2106
|
|
2107 size = (sizeof(ngx_http_script_copy_code_t)
|
|
2108 + src[i].key.len + sizeof(": ") - 1 + sizeof(uintptr_t) - 1)
|
|
2109 & ~(sizeof(uintptr_t) - 1);
|
|
2110
|
|
2111 copy = ngx_array_push_n(conf->headers_set, size);
|
|
2112 if (copy == NULL) {
|
|
2113 return NGX_CONF_ERROR;
|
|
2114 }
|
|
2115
|
|
2116 copy->code = ngx_http_script_copy_code;
|
|
2117 copy->len = src[i].key.len + sizeof(": ") - 1;
|
|
2118
|
|
2119 p = (u_char *) copy + sizeof(ngx_http_script_copy_code_t);
|
|
2120 p = ngx_cpymem(p, src[i].key.data, src[i].key.len);
|
|
2121 *p++ = ':'; *p = ' ';
|
|
2122
|
|
2123
|
|
2124 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t));
|
|
2125
|
|
2126 sc.cf = cf;
|
|
2127 sc.source = &src[i].value;
|
122
|
2128 sc.flushes = &conf->flushes;
|
58
|
2129 sc.lengths = &conf->headers_set_len;
|
|
2130 sc.values = &conf->headers_set;
|
|
2131
|
|
2132 if (ngx_http_script_compile(&sc) != NGX_OK) {
|
|
2133 return NGX_CONF_ERROR;
|
|
2134 }
|
|
2135
|
|
2136
|
|
2137 copy = ngx_array_push_n(conf->headers_set_len,
|
|
2138 sizeof(ngx_http_script_copy_code_t));
|
|
2139 if (copy == NULL) {
|
|
2140 return NGX_CONF_ERROR;
|
|
2141 }
|
|
2142
|
|
2143 copy->code = (ngx_http_script_code_pt)
|
|
2144 ngx_http_script_copy_len_code;
|
|
2145 copy->len = sizeof(CRLF) - 1;
|
|
2146
|
|
2147
|
|
2148 size = (sizeof(ngx_http_script_copy_code_t)
|
|
2149 + sizeof(CRLF) - 1 + sizeof(uintptr_t) - 1)
|
|
2150 & ~(sizeof(uintptr_t) - 1);
|
|
2151
|
|
2152 copy = ngx_array_push_n(conf->headers_set, size);
|
|
2153 if (copy == NULL) {
|
|
2154 return NGX_CONF_ERROR;
|
|
2155 }
|
|
2156
|
|
2157 copy->code = ngx_http_script_copy_code;
|
|
2158 copy->len = sizeof(CRLF) - 1;
|
|
2159
|
|
2160 p = (u_char *) copy + sizeof(ngx_http_script_copy_code_t);
|
|
2161 *p++ = CR; *p = LF;
|
|
2162 }
|
|
2163
|
|
2164 code = ngx_array_push_n(conf->headers_set_len, sizeof(uintptr_t));
|
|
2165 if (code == NULL) {
|
|
2166 return NGX_CONF_ERROR;
|
|
2167 }
|
|
2168
|
|
2169 *code = (uintptr_t) NULL;
|
|
2170
|
|
2171 code = ngx_array_push_n(conf->headers_set, sizeof(uintptr_t));
|
|
2172 if (code == NULL) {
|
|
2173 return NGX_CONF_ERROR;
|
|
2174 }
|
|
2175
|
|
2176 *code = (uintptr_t) NULL;
|
|
2177 }
|
|
2178
|
|
2179 code = ngx_array_push_n(conf->headers_set_len, sizeof(uintptr_t));
|
|
2180 if (code == NULL) {
|
|
2181 return NGX_CONF_ERROR;
|
|
2182 }
|
|
2183
|
|
2184 *code = (uintptr_t) NULL;
|
|
2185
|
|
2186
|
198
|
2187 hash.hash = &conf->headers_set_hash;
|
|
2188 hash.key = ngx_hash_key_lc;
|
298
|
2189 hash.max_size = conf->headers_hash_max_size;
|
|
2190 hash.bucket_size = conf->headers_hash_bucket_size;
|
|
2191 hash.name = "proxy_headers_hash";
|
198
|
2192 hash.pool = cf->pool;
|
|
2193 hash.temp_pool = NULL;
|
|
2194
|
|
2195 if (ngx_hash_init(&hash, conf->headers_names->elts,
|
|
2196 conf->headers_names->nelts)
|
|
2197 != NGX_OK)
|
|
2198 {
|
|
2199 return NGX_CONF_ERROR;
|
|
2200 }
|
|
2201
|
58
|
2202 return NGX_CONF_OK;
|
|
2203 }
|
|
2204
|
|
2205
|
|
2206 static char *
|
|
2207 ngx_http_proxy_pass(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
2208 {
|
|
2209 ngx_http_proxy_loc_conf_t *plcf = conf;
|
|
2210
|
348
|
2211 size_t add;
|
|
2212 u_short port;
|
|
2213 ngx_str_t *value, *url;
|
|
2214 ngx_url_t u;
|
|
2215 ngx_uint_t n;
|
|
2216 ngx_http_core_loc_conf_t *clcf;
|
|
2217 ngx_http_script_compile_t sc;
|
58
|
2218
|
104
|
2219 if (plcf->upstream.schema.len) {
|
|
2220 return "is duplicate";
|
|
2221 }
|
|
2222
|
348
|
2223 clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module);
|
|
2224
|
58
|
2225 value = cf->args->elts;
|
|
2226
|
|
2227 url = &value[1];
|
|
2228
|
348
|
2229 n = ngx_http_script_variables_count(url);
|
|
2230
|
|
2231 if (n) {
|
|
2232
|
|
2233 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t));
|
|
2234
|
|
2235 sc.cf = cf;
|
|
2236 sc.source = url;
|
|
2237 sc.lengths = &plcf->proxy_lengths;
|
|
2238 sc.values = &plcf->proxy_values;
|
|
2239 sc.variables = n;
|
|
2240 sc.complete_lengths = 1;
|
|
2241 sc.complete_values = 1;
|
354
|
2242
|
348
|
2243 if (ngx_http_script_compile(&sc) != NGX_OK) {
|
|
2244 return NGX_CONF_ERROR;
|
|
2245 }
|
|
2246
|
|
2247 #if (NGX_HTTP_SSL)
|
|
2248 if (ngx_http_proxy_set_ssl(cf, plcf) != NGX_OK) {
|
|
2249 return NGX_CONF_ERROR;
|
|
2250 }
|
|
2251 #endif
|
|
2252
|
|
2253 clcf->handler = ngx_http_proxy_handler;
|
|
2254
|
|
2255 return NGX_CONF_OK;
|
|
2256 }
|
|
2257
|
286
|
2258 if (ngx_strncasecmp(url->data, (u_char *) "http://", 7) == 0) {
|
126
|
2259 add = 7;
|
140
|
2260 port = 80;
|
126
|
2261
|
286
|
2262 } else if (ngx_strncasecmp(url->data, (u_char *) "https://", 8) == 0) {
|
126
|
2263
|
|
2264 #if (NGX_HTTP_SSL)
|
348
|
2265 if (ngx_http_proxy_set_ssl(cf, plcf) != NGX_OK) {
|
|
2266 return NGX_CONF_ERROR;
|
|
2267 }
|
126
|
2268
|
|
2269 add = 8;
|
140
|
2270 port = 443;
|
126
|
2271 #else
|
|
2272 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
2273 "https protocol requires SSL support");
|
|
2274 return NGX_CONF_ERROR;
|
|
2275 #endif
|
|
2276
|
|
2277 } else {
|
58
|
2278 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid URL prefix");
|
|
2279 return NGX_CONF_ERROR;
|
|
2280 }
|
|
2281
|
200
|
2282 ngx_memzero(&u, sizeof(ngx_url_t));
|
|
2283
|
|
2284 u.url.len = url->len - add;
|
|
2285 u.url.data = url->data + add;
|
266
|
2286 u.default_port = port;
|
|
2287 u.uri_part = 1;
|
260
|
2288 u.no_resolve = 1;
|
|
2289
|
|
2290 plcf->upstream.upstream = ngx_http_upstream_add(cf, &u, 0);
|
|
2291 if (plcf->upstream.upstream == NULL) {
|
58
|
2292 return NGX_CONF_ERROR;
|
|
2293 }
|
|
2294
|
348
|
2295 if (ngx_http_proxy_set_vars(cf->pool, &u, &plcf->vars) != NGX_OK) {
|
|
2296 return NGX_CONF_ERROR;
|
266
|
2297 }
|
|
2298
|
140
|
2299 plcf->upstream.schema.len = add;
|
|
2300 plcf->upstream.schema.data = url->data;
|
348
|
2301 plcf->location = clcf->name;
|
58
|
2302
|
|
2303 clcf->handler = ngx_http_proxy_handler;
|
|
2304
|
324
|
2305 if (clcf->named
|
58
|
2306 #if (NGX_PCRE)
|
324
|
2307 || clcf->regex
|
|
2308 #endif
|
|
2309 || clcf->noname)
|
|
2310 {
|
348
|
2311 if (plcf->vars.uri.len) {
|
122
|
2312 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
2313 "\"proxy_pass\" may not have URI part in "
|
256
|
2314 "location given by regular expression, "
|
324
|
2315 "or inside named location, "
|
256
|
2316 "or inside the \"if\" statement, "
|
|
2317 "or inside the \"limit_except\" block");
|
122
|
2318 return NGX_CONF_ERROR;
|
|
2319 }
|
|
2320
|
348
|
2321 plcf->location.len = 0;
|
104
|
2322 }
|
|
2323
|
348
|
2324 plcf->url = *url;
|
58
|
2325
|
|
2326 if (clcf->name.data[clcf->name.len - 1] == '/') {
|
|
2327 clcf->auto_redirect = 1;
|
|
2328 }
|
|
2329
|
|
2330 return NGX_CONF_OK;
|
|
2331 }
|
|
2332
|
|
2333
|
|
2334 static char *
|
|
2335 ngx_http_proxy_redirect(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
2336 {
|
|
2337 ngx_http_proxy_loc_conf_t *plcf = conf;
|
|
2338
|
|
2339 ngx_str_t *value;
|
|
2340 ngx_array_t *vars_lengths, *vars_values;
|
|
2341 ngx_http_script_compile_t sc;
|
|
2342 ngx_http_proxy_redirect_t *pr;
|
|
2343
|
|
2344 if (plcf->redirect == 0) {
|
|
2345 return NGX_CONF_OK;
|
|
2346 }
|
|
2347
|
|
2348 value = cf->args->elts;
|
|
2349
|
|
2350 if (ngx_strcmp(value[1].data, "off") == 0) {
|
|
2351 plcf->redirect = 0;
|
|
2352 plcf->redirects = NULL;
|
|
2353 return NGX_CONF_OK;
|
|
2354 }
|
|
2355
|
|
2356 if (plcf->redirects == NULL) {
|
|
2357 plcf->redirects = ngx_array_create(cf->pool, 1,
|
|
2358 sizeof(ngx_http_proxy_redirect_t));
|
|
2359 if (plcf->redirects == NULL) {
|
|
2360 return NGX_CONF_ERROR;
|
|
2361 }
|
|
2362 }
|
|
2363
|
|
2364 pr = ngx_array_push(plcf->redirects);
|
|
2365 if (pr == NULL) {
|
|
2366 return NGX_CONF_ERROR;
|
|
2367 }
|
|
2368
|
|
2369 if (cf->args->nelts == 2 && ngx_strcmp(value[1].data, "default") == 0) {
|
348
|
2370 if (plcf->url.data == NULL) {
|
58
|
2371 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
2372 "\"proxy_rewrite_location default\" must go "
|
|
2373 "after the \"proxy_pass\" directive");
|
|
2374 return NGX_CONF_ERROR;
|
|
2375 }
|
|
2376
|
|
2377 pr->handler = ngx_http_proxy_rewrite_redirect_text;
|
348
|
2378 pr->redirect = plcf->url;
|
|
2379
|
|
2380 if (plcf->vars.uri.len) {
|
|
2381 pr->replacement.text = plcf->location;
|
202
|
2382
|
|
2383 } else {
|
|
2384 pr->replacement.text.len = 0;
|
|
2385 pr->replacement.text.data = NULL;
|
|
2386 }
|
58
|
2387
|
|
2388 return NGX_CONF_OK;
|
|
2389 }
|
|
2390
|
|
2391 if (ngx_http_script_variables_count(&value[2]) == 0) {
|
|
2392 pr->handler = ngx_http_proxy_rewrite_redirect_text;
|
|
2393 pr->redirect = value[1];
|
|
2394 pr->replacement.text = value[2];
|
|
2395
|
|
2396 return NGX_CONF_OK;
|
|
2397 }
|
|
2398
|
|
2399 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t));
|
|
2400
|
|
2401 vars_lengths = NULL;
|
|
2402 vars_values = NULL;
|
|
2403
|
|
2404 sc.cf = cf;
|
|
2405 sc.source = &value[2];
|
|
2406 sc.lengths = &vars_lengths;
|
|
2407 sc.values = &vars_values;
|
|
2408 sc.complete_lengths = 1;
|
|
2409 sc.complete_values = 1;
|
|
2410
|
|
2411 if (ngx_http_script_compile(&sc) != NGX_OK) {
|
|
2412 return NGX_CONF_ERROR;
|
|
2413 }
|
|
2414
|
|
2415 pr->handler = ngx_http_proxy_rewrite_redirect_vars;
|
|
2416 pr->redirect = value[1];
|
|
2417 pr->replacement.vars.lengths = vars_lengths->elts;
|
|
2418 pr->replacement.vars.values = vars_values->elts;
|
|
2419
|
|
2420 return NGX_CONF_OK;
|
|
2421 }
|
|
2422
|
|
2423
|
|
2424 static char *
|
320
|
2425 ngx_http_proxy_store(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
2426 {
|
|
2427 ngx_http_proxy_loc_conf_t *plcf = conf;
|
|
2428
|
|
2429 ngx_str_t *value;
|
|
2430 ngx_http_script_compile_t sc;
|
|
2431
|
|
2432 if (plcf->upstream.store != NGX_CONF_UNSET || plcf->upstream.store_lengths)
|
|
2433 {
|
|
2434 return "is duplicate";
|
|
2435 }
|
|
2436
|
|
2437 value = cf->args->elts;
|
|
2438
|
|
2439 if (ngx_strcmp(value[1].data, "on") == 0) {
|
|
2440 plcf->upstream.store = 1;
|
|
2441 return NGX_CONF_OK;
|
|
2442 }
|
|
2443
|
|
2444 if (ngx_strcmp(value[1].data, "off") == 0) {
|
|
2445 plcf->upstream.store = 0;
|
|
2446 return NGX_CONF_OK;
|
|
2447 }
|
|
2448
|
|
2449 /* include the terminating '\0' into script */
|
|
2450 value[1].len++;
|
|
2451
|
|
2452 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t));
|
|
2453
|
|
2454 sc.cf = cf;
|
|
2455 sc.source = &value[1];
|
|
2456 sc.lengths = &plcf->upstream.store_lengths;
|
|
2457 sc.values = &plcf->upstream.store_values;
|
340
|
2458 sc.variables = ngx_http_script_variables_count(&value[1]);
|
320
|
2459 sc.complete_lengths = 1;
|
|
2460 sc.complete_values = 1;
|
|
2461
|
|
2462 if (ngx_http_script_compile(&sc) != NGX_OK) {
|
|
2463 return NGX_CONF_ERROR;
|
|
2464 }
|
|
2465
|
|
2466 return NGX_CONF_OK;
|
|
2467 }
|
|
2468
|
|
2469
|
|
2470 static char *
|
58
|
2471 ngx_http_proxy_lowat_check(ngx_conf_t *cf, void *post, void *data)
|
|
2472 {
|
|
2473 #if (NGX_FREEBSD)
|
|
2474 ssize_t *np = data;
|
|
2475
|
222
|
2476 if ((u_long) *np >= ngx_freebsd_net_inet_tcp_sendspace) {
|
58
|
2477 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
2478 "\"proxy_send_lowat\" must be less than %d "
|
|
2479 "(sysctl net.inet.tcp.sendspace)",
|
|
2480 ngx_freebsd_net_inet_tcp_sendspace);
|
|
2481
|
|
2482 return NGX_CONF_ERROR;
|
|
2483 }
|
|
2484
|
|
2485 #elif !(NGX_HAVE_SO_SNDLOWAT)
|
|
2486 ssize_t *np = data;
|
|
2487
|
|
2488 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
|
|
2489 "\"proxy_send_lowat\" is not supported, ignored");
|
|
2490
|
|
2491 *np = 0;
|
|
2492
|
|
2493 #endif
|
|
2494
|
|
2495 return NGX_CONF_OK;
|
|
2496 }
|
260
|
2497
|
|
2498
|
|
2499 static char *
|
|
2500 ngx_http_proxy_upstream_max_fails_unsupported(ngx_conf_t *cf,
|
|
2501 ngx_command_t *cmd, void *conf)
|
|
2502 {
|
|
2503 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
2504 "\"proxy_upstream_max_fails\" is not supported, "
|
|
2505 "use the \"max_fails\" parameter of the \"server\" directive ",
|
|
2506 "inside the \"upstream\" block");
|
|
2507
|
|
2508 return NGX_CONF_ERROR;
|
|
2509 }
|
|
2510
|
|
2511
|
|
2512 static char *
|
|
2513 ngx_http_proxy_upstream_fail_timeout_unsupported(ngx_conf_t *cf,
|
|
2514 ngx_command_t *cmd, void *conf)
|
|
2515 {
|
|
2516 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
2517 "\"proxy_upstream_fail_timeout\" is not supported, "
|
|
2518 "use the \"fail_timeout\" parameter of the \"server\" directive ",
|
|
2519 "inside the \"upstream\" block");
|
|
2520
|
|
2521 return NGX_CONF_ERROR;
|
|
2522 }
|
348
|
2523
|
|
2524
|
|
2525 #if (NGX_HTTP_SSL)
|
|
2526
|
|
2527 static ngx_int_t
|
|
2528 ngx_http_proxy_set_ssl(ngx_conf_t *cf, ngx_http_proxy_loc_conf_t *plcf)
|
|
2529 {
|
|
2530 ngx_pool_cleanup_t *cln;
|
|
2531
|
|
2532 plcf->upstream.ssl = ngx_pcalloc(cf->pool, sizeof(ngx_ssl_t));
|
|
2533 if (plcf->upstream.ssl == NULL) {
|
|
2534 return NGX_ERROR;
|
|
2535 }
|
|
2536
|
|
2537 plcf->upstream.ssl->log = cf->log;
|
|
2538
|
|
2539 if (ngx_ssl_create(plcf->upstream.ssl,
|
|
2540 NGX_SSL_SSLv2|NGX_SSL_SSLv3|NGX_SSL_TLSv1, NULL)
|
|
2541 != NGX_OK)
|
|
2542 {
|
|
2543 return NGX_ERROR;
|
|
2544 }
|
|
2545
|
|
2546 cln = ngx_pool_cleanup_add(cf->pool, 0);
|
|
2547 if (cln == NULL) {
|
|
2548 return NGX_ERROR;
|
|
2549 }
|
|
2550
|
|
2551 cln->handler = ngx_ssl_cleanup_ctx;
|
|
2552 cln->data = plcf->upstream.ssl;
|
|
2553
|
|
2554 return NGX_OK;
|
|
2555 }
|
|
2556
|
|
2557 #endif
|
|
2558
|
|
2559
|
|
2560 static ngx_int_t
|
|
2561 ngx_http_proxy_set_vars(ngx_pool_t *pool, ngx_url_t *u,
|
|
2562 ngx_http_proxy_vars_t *v)
|
|
2563 {
|
400
|
2564 if (u->family != AF_UNIX) {
|
348
|
2565 if (u->no_port || u->port == u->default_port) {
|
|
2566 v->host_header = u->host;
|
|
2567
|
|
2568 if (u->default_port == 80) {
|
|
2569 v->port.len = sizeof("80") - 1;
|
|
2570 v->port.data = (u_char *) "80";
|
|
2571
|
|
2572 } else {
|
|
2573 v->port.len = sizeof("443") - 1;
|
|
2574 v->port.data = (u_char *) "443";
|
|
2575 }
|
|
2576
|
|
2577 } else {
|
354
|
2578 v->host_header.len = u->host.len + 1 + u->port_text.len;
|
|
2579 v->host_header.data = u->host.data;
|
|
2580 v->port = u->port_text;
|
348
|
2581 }
|
|
2582
|
|
2583 } else {
|
|
2584 v->host_header.len = sizeof("localhost") - 1;
|
|
2585 v->host_header.data = (u_char *) "localhost";
|
|
2586 v->port.len = 0;
|
|
2587 v->port.data = (u_char *) "";
|
|
2588 }
|
|
2589
|
|
2590 v->uri = u->uri;
|
|
2591
|
|
2592 return NGX_OK;
|
|
2593 }
|