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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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5
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6
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
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9 #include <ngx_event.h>
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10 #include <ngx_http.h>
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11
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12
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13 typedef struct ngx_http_proxy_redirect_s ngx_http_proxy_redirect_t;
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14
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15 typedef ngx_int_t (*ngx_http_proxy_redirect_pt)(ngx_http_request_t *r,
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16 ngx_table_elt_t *h, size_t prefix, ngx_http_proxy_redirect_t *pr);
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17
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18 struct ngx_http_proxy_redirect_s {
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19 ngx_http_proxy_redirect_pt handler;
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20 ngx_str_t redirect;
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21
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22 union {
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23 ngx_str_t text;
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24
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25 struct {
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26 void *lengths;
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27 void *values;
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28 } vars;
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29
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30 void *regex;
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31 } replacement;
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32 };
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33
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34
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35 typedef struct {
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36 ngx_http_upstream_conf_t upstream;
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37
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38 ngx_peers_t *peers;
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39
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40 ngx_array_t *headers_set_len;
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41 ngx_array_t *headers_set;
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42 ngx_hash_t *headers_set_hash;
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43
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44 ngx_array_t *headers_source;
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45 ngx_array_t *headers_names;
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46
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47 ngx_array_t *redirects;
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48
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110
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49 ngx_str_t method;
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58
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50 ngx_str_t host_header;
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51 ngx_str_t port_text;
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52
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53 ngx_flag_t redirect;
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54 } ngx_http_proxy_loc_conf_t;
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55
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56
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57 typedef struct {
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58 ngx_uint_t status;
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59 ngx_uint_t status_count;
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60 u_char *status_start;
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61 u_char *status_end;
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62 } ngx_http_proxy_ctx_t;
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63
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64
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65 #define NGX_HTTP_PROXY_PARSE_NO_HEADER 20
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66
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67
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68 static ngx_int_t ngx_http_proxy_create_request(ngx_http_request_t *r);
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69 static ngx_int_t ngx_http_proxy_reinit_request(ngx_http_request_t *r);
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70 static ngx_int_t ngx_http_proxy_process_status_line(ngx_http_request_t *r);
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71 static ngx_int_t ngx_http_proxy_parse_status_line(ngx_http_request_t *r,
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72 ngx_http_proxy_ctx_t *p);
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73 static ngx_int_t ngx_http_proxy_process_header(ngx_http_request_t *r);
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74 static void ngx_http_proxy_abort_request(ngx_http_request_t *r);
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75 static void ngx_http_proxy_finalize_request(ngx_http_request_t *r,
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76 ngx_int_t rc);
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77
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78 static ngx_http_variable_value_t *
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79 ngx_http_proxy_host_variable(ngx_http_request_t *r, uintptr_t data);
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80 static ngx_http_variable_value_t *
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81 ngx_http_proxy_port_variable(ngx_http_request_t *r, uintptr_t data);
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82 static ngx_http_variable_value_t *
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83 ngx_http_proxy_add_x_forwarded_for_variable(ngx_http_request_t *r,
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84 uintptr_t data);
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85 static ngx_int_t ngx_http_proxy_rewrite_redirect(ngx_http_request_t *r,
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86 ngx_table_elt_t *h, size_t prefix);
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87
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88 static ngx_int_t ngx_http_proxy_add_variables(ngx_conf_t *cf);
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89 static void *ngx_http_proxy_create_loc_conf(ngx_conf_t *cf);
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90 static char *ngx_http_proxy_merge_loc_conf(ngx_conf_t *cf,
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91 void *parent, void *child);
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92
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93 static char *ngx_http_proxy_pass(ngx_conf_t *cf, ngx_command_t *cmd,
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94 void *conf);
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95 static char *ngx_http_proxy_redirect(ngx_conf_t *cf, ngx_command_t *cmd,
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96 void *conf);
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97
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98 static char *ngx_http_proxy_lowat_check(ngx_conf_t *cf, void *post, void *data);
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99
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100
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101 static ngx_conf_post_t ngx_http_proxy_lowat_post =
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102 { ngx_http_proxy_lowat_check };
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103
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104
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105 static ngx_conf_bitmask_t ngx_http_proxy_next_upstream_masks[] = {
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106 { ngx_string("error"), NGX_HTTP_UPSTREAM_FT_ERROR },
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107 { ngx_string("timeout"), NGX_HTTP_UPSTREAM_FT_TIMEOUT },
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108 { ngx_string("invalid_header"), NGX_HTTP_UPSTREAM_FT_INVALID_HEADER },
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109 { ngx_string("http_500"), NGX_HTTP_UPSTREAM_FT_HTTP_500 },
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110 { ngx_string("http_404"), NGX_HTTP_UPSTREAM_FT_HTTP_404 },
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111 { ngx_null_string, 0 }
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112 };
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113
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114
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115 static ngx_command_t ngx_http_proxy_commands[] = {
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116
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117 { ngx_string("proxy_pass"),
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118 NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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119 ngx_http_proxy_pass,
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120 NGX_HTTP_LOC_CONF_OFFSET,
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121 0,
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122 NULL },
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123
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124 { ngx_string("proxy_redirect"),
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125 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE12,
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126 ngx_http_proxy_redirect,
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127 NGX_HTTP_LOC_CONF_OFFSET,
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128 0,
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129 NULL },
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130
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131 { ngx_string("proxy_connect_timeout"),
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132 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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133 ngx_conf_set_msec_slot,
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134 NGX_HTTP_LOC_CONF_OFFSET,
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135 offsetof(ngx_http_proxy_loc_conf_t, upstream.connect_timeout),
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136 NULL },
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137
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138 { ngx_string("proxy_send_timeout"),
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139 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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140 ngx_conf_set_msec_slot,
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141 NGX_HTTP_LOC_CONF_OFFSET,
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142 offsetof(ngx_http_proxy_loc_conf_t, upstream.send_timeout),
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143 NULL },
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144
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145 { ngx_string("proxy_send_lowat"),
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146 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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147 ngx_conf_set_size_slot,
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148 NGX_HTTP_LOC_CONF_OFFSET,
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149 offsetof(ngx_http_proxy_loc_conf_t, upstream.send_lowat),
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150 &ngx_http_proxy_lowat_post },
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151
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152 { ngx_string("proxy_redirect_errors"),
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153 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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154 ngx_conf_set_flag_slot,
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155 NGX_HTTP_LOC_CONF_OFFSET,
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156 offsetof(ngx_http_proxy_loc_conf_t, upstream.redirect_errors),
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157 NULL },
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158
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159 { ngx_string("proxy_set_header"),
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160 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2,
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161 ngx_conf_set_table_elt_slot,
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162 NGX_HTTP_LOC_CONF_OFFSET,
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163 offsetof(ngx_http_proxy_loc_conf_t, headers_source),
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164 NULL },
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165
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166 { ngx_string("proxy_method"),
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167 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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110
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168 ngx_conf_set_str_slot,
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169 NGX_HTTP_LOC_CONF_OFFSET,
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110
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170 offsetof(ngx_http_proxy_loc_conf_t, method),
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171 NULL },
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58
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172
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173 { ngx_string("proxy_pass_request_headers"),
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174 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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175 ngx_conf_set_flag_slot,
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176 NGX_HTTP_LOC_CONF_OFFSET,
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177 offsetof(ngx_http_proxy_loc_conf_t, upstream.pass_request_headers),
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178 NULL },
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179
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180 { ngx_string("proxy_pass_request_body"),
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181 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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182 ngx_conf_set_flag_slot,
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183 NGX_HTTP_LOC_CONF_OFFSET,
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184 offsetof(ngx_http_proxy_loc_conf_t, upstream.pass_request_body),
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185 NULL },
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186
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187 { ngx_string("proxy_header_buffer_size"),
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188 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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189 ngx_conf_set_size_slot,
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190 NGX_HTTP_LOC_CONF_OFFSET,
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191 offsetof(ngx_http_proxy_loc_conf_t, upstream.header_buffer_size),
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192 NULL },
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193
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194 { ngx_string("proxy_read_timeout"),
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195 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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196 ngx_conf_set_msec_slot,
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197 NGX_HTTP_LOC_CONF_OFFSET,
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198 offsetof(ngx_http_proxy_loc_conf_t, upstream.read_timeout),
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199 NULL },
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200
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201 { ngx_string("proxy_buffers"),
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202 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2,
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203 ngx_conf_set_bufs_slot,
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204 NGX_HTTP_LOC_CONF_OFFSET,
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205 offsetof(ngx_http_proxy_loc_conf_t, upstream.bufs),
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206 NULL },
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207
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208 { ngx_string("proxy_busy_buffers_size"),
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209 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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210 ngx_conf_set_size_slot,
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211 NGX_HTTP_LOC_CONF_OFFSET,
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212 offsetof(ngx_http_proxy_loc_conf_t, upstream.busy_buffers_size_conf),
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213 NULL },
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214
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215 { ngx_string("proxy_temp_path"),
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216 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1234,
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217 ngx_conf_set_path_slot,
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218 NGX_HTTP_LOC_CONF_OFFSET,
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219 offsetof(ngx_http_proxy_loc_conf_t, upstream.temp_path),
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220 (void *) ngx_garbage_collector_temp_handler },
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221
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222 { ngx_string("proxy_max_temp_file_size"),
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223 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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224 ngx_conf_set_size_slot,
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225 NGX_HTTP_LOC_CONF_OFFSET,
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226 offsetof(ngx_http_proxy_loc_conf_t, upstream.max_temp_file_size_conf),
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227 NULL },
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228
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229 { ngx_string("proxy_temp_file_write_size"),
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230 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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231 ngx_conf_set_size_slot,
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232 NGX_HTTP_LOC_CONF_OFFSET,
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233 offsetof(ngx_http_proxy_loc_conf_t, upstream.temp_file_write_size_conf),
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234 NULL },
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235
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236 { ngx_string("proxy_next_upstream"),
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96
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237 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
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238 ngx_conf_set_bitmask_slot,
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239 NGX_HTTP_LOC_CONF_OFFSET,
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240 offsetof(ngx_http_proxy_loc_conf_t, upstream.next_upstream),
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241 &ngx_http_proxy_next_upstream_masks },
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242
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110
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243 { ngx_string("proxy_upstream_max_fails"),
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244 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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245 ngx_conf_set_num_slot,
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246 NGX_HTTP_LOC_CONF_OFFSET,
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247 offsetof(ngx_http_proxy_loc_conf_t, upstream.max_fails),
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248 NULL },
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249
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250 { ngx_string("proxy_upstream_fail_timeout"),
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251 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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252 ngx_conf_set_sec_slot,
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253 NGX_HTTP_LOC_CONF_OFFSET,
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254 offsetof(ngx_http_proxy_loc_conf_t, upstream.fail_timeout),
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255 NULL },
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256
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257 { ngx_string("proxy_pass_x_powered_by"),
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258 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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259 ngx_conf_set_flag_slot,
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260 NGX_HTTP_LOC_CONF_OFFSET,
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261 offsetof(ngx_http_proxy_loc_conf_t, upstream.pass_x_powered_by),
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262 NULL },
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263
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264 { ngx_string("proxy_pass_server"),
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265 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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266 ngx_conf_set_flag_slot,
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267 NGX_HTTP_LOC_CONF_OFFSET,
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268 offsetof(ngx_http_proxy_loc_conf_t, upstream.pass_server),
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269 NULL },
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270
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271 { ngx_string("proxy_pass_x_accel_expires"),
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272 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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273 ngx_conf_set_flag_slot,
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274 NGX_HTTP_LOC_CONF_OFFSET,
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275 offsetof(ngx_http_proxy_loc_conf_t, upstream.pass_x_accel_expires),
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276 NULL },
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277
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278 ngx_null_command
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279 };
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280
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281
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282 ngx_http_module_t ngx_http_proxy_module_ctx = {
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283 ngx_http_proxy_add_variables, /* preconfiguration */
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284 NULL, /* postconfiguration */
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285
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286 NULL, /* create main configuration */
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287 NULL, /* init main configuration */
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288
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289 NULL, /* create server configuration */
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290 NULL, /* merge server configuration */
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291
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292 ngx_http_proxy_create_loc_conf, /* create location configration */
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293 ngx_http_proxy_merge_loc_conf /* merge location configration */
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294 };
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295
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296
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297 ngx_module_t ngx_http_proxy_module = {
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298 NGX_MODULE_V1,
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299 &ngx_http_proxy_module_ctx, /* module context */
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300 ngx_http_proxy_commands, /* module directives */
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301 NGX_HTTP_MODULE, /* module type */
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90
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302 NULL, /* init master */
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58
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303 NULL, /* init module */
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90
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304 NULL, /* init process */
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305 NULL, /* init thread */
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306 NULL, /* exit thread */
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307 NULL, /* exit process */
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308 NULL, /* exit master */
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309 NGX_MODULE_V1_PADDING
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58
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310 };
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311
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312
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313 static char ngx_http_proxy_version[] = " HTTP/1.0" CRLF;
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314
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315
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316 static ngx_table_elt_t ngx_http_proxy_headers[] = {
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66
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317 { 0, ngx_string("Host"), ngx_string("$proxy_host") },
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318 { 0, ngx_string("Connection"), ngx_string("close") },
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58
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319 { 0, ngx_null_string, ngx_null_string }
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320 };
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321
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322
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323 static ngx_http_variable_t ngx_http_proxy_vars[] = {
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324
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325 { ngx_string("proxy_host"), ngx_http_proxy_host_variable, 0,
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82
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326 NGX_HTTP_VAR_CHANGABLE, 0 },
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58
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327
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328 { ngx_string("proxy_port"), ngx_http_proxy_port_variable, 0,
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82
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329 NGX_HTTP_VAR_CHANGABLE, 0 },
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58
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330
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331 { ngx_string("proxy_add_x_forwarded_for"),
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82
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332 ngx_http_proxy_add_x_forwarded_for_variable, 0, 0, 0 },
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58
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333
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334 #if 0
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82
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335 { ngx_string("proxy_add_via"), NULL, 0, 0, 0 },
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58
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336 #endif
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337
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82
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338 { ngx_null_string, NULL, 0, 0, 0 }
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58
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339 };
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340
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341
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342 static ngx_int_t
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343 ngx_http_proxy_handler(ngx_http_request_t *r)
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344 {
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345 ngx_int_t rc;
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|
346 ngx_http_upstream_t *u;
|
|
|
347 ngx_http_proxy_loc_conf_t *plcf;
|
|
|
348
|
|
|
349 plcf = ngx_http_get_module_loc_conf(r, ngx_http_proxy_module);
|
|
|
350
|
|
|
351 u = ngx_pcalloc(r->pool, sizeof(ngx_http_upstream_t));
|
|
|
352 if (u == NULL) {
|
|
|
353 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
354 }
|
|
|
355
|
|
|
356 u->peer.log = r->connection->log;
|
|
|
357 u->peer.log_error = NGX_ERROR_ERR;
|
|
|
358 u->peer.peers = plcf->peers;
|
|
|
359 u->peer.tries = plcf->peers->number;
|
|
|
360 #if (NGX_THREADS)
|
|
|
361 u->peer.lock = &r->connection->lock;
|
|
|
362 #endif
|
|
|
363
|
|
|
364 u->output.tag = (ngx_buf_tag_t) &ngx_http_proxy_module;
|
|
|
365
|
|
|
366 u->conf = &plcf->upstream;
|
|
|
367
|
|
|
368 u->create_request = ngx_http_proxy_create_request;
|
|
|
369 u->reinit_request = ngx_http_proxy_reinit_request;
|
|
|
370 u->process_header = ngx_http_proxy_process_status_line;
|
|
|
371 u->abort_request = ngx_http_proxy_abort_request;
|
|
|
372 u->finalize_request = ngx_http_proxy_finalize_request;
|
|
|
373
|
|
|
374 if (plcf->redirects) {
|
|
|
375 u->rewrite_redirect = ngx_http_proxy_rewrite_redirect;
|
|
|
376 }
|
|
|
377
|
|
|
378 u->pipe.input_filter = ngx_event_pipe_copy_input_filter;
|
|
|
379
|
|
|
380 u->accel = 1;
|
|
|
381
|
|
|
382 r->upstream = u;
|
|
|
383
|
|
|
384 rc = ngx_http_read_client_request_body(r, ngx_http_upstream_init);
|
|
|
385
|
|
|
386 if (rc >= NGX_HTTP_SPECIAL_RESPONSE) {
|
|
|
387 return rc;
|
|
|
388 }
|
|
|
389
|
|
|
390 return NGX_DONE;
|
|
|
391 }
|
|
|
392
|
|
|
393
|
|
|
394 static ngx_int_t
|
|
|
395 ngx_http_proxy_create_request(ngx_http_request_t *r)
|
|
|
396 {
|
|
|
397 size_t len, loc_len;
|
|
|
398 ngx_uint_t i, key;
|
|
|
399 uintptr_t escape;
|
|
|
400 ngx_buf_t *b;
|
|
110
|
401 ngx_str_t *hh, method;
|
|
58
|
402 ngx_chain_t *cl, *body;
|
|
|
403 ngx_list_part_t *part;
|
|
|
404 ngx_table_elt_t *header;
|
|
|
405 ngx_http_upstream_t *u;
|
|
|
406 ngx_http_script_code_pt code;
|
|
|
407 ngx_http_script_engine_t e, le;
|
|
|
408 ngx_http_proxy_loc_conf_t *plcf;
|
|
|
409 ngx_http_script_len_code_pt lcode;
|
|
|
410
|
|
|
411 u = r->upstream;
|
|
|
412
|
|
|
413 plcf = ngx_http_get_module_loc_conf(r, ngx_http_proxy_module);
|
|
|
414
|
|
|
415 len = sizeof(ngx_http_proxy_version) - 1 + sizeof(CRLF) - 1;
|
|
|
416
|
|
110
|
417 if (u->method.len) {
|
|
|
418 /* HEAD was changed to GET to cache response */
|
|
|
419 method = u->method;
|
|
|
420 method.len++;
|
|
|
421
|
|
|
422 } else if (plcf->method.len) {
|
|
|
423 method = plcf->method;
|
|
|
424
|
|
58
|
425 } else {
|
|
110
|
426 method = r->method_name;
|
|
|
427 method.len++;
|
|
58
|
428 }
|
|
|
429
|
|
110
|
430 len += method.len + u->conf->uri.len;
|
|
|
431
|
|
58
|
432 escape = 0;
|
|
|
433
|
|
100
|
434 loc_len = r->valid_location ? u->conf->location->len : 0;
|
|
58
|
435
|
|
104
|
436 if (u->conf->uri.len == 0 && r->valid_unparsed_uri) {
|
|
88
|
437 len += r->unparsed_uri.len;
|
|
58
|
438
|
|
|
439 } else {
|
|
|
440 if (r->quoted_uri) {
|
|
|
441 escape = 2 * ngx_escape_uri(NULL, r->uri.data + loc_len,
|
|
|
442 r->uri.len - loc_len, NGX_ESCAPE_URI);
|
|
|
443 }
|
|
|
444
|
|
|
445 len += r->uri.len - loc_len + escape + sizeof("?") - 1 + r->args.len;
|
|
|
446 }
|
|
|
447
|
|
|
448 ngx_memzero(&e, sizeof(ngx_http_script_engine_t));
|
|
|
449
|
|
|
450 le.ip = plcf->headers_set_len->elts;
|
|
|
451 le.request = r;
|
|
|
452
|
|
|
453 while (*(uintptr_t *) le.ip) {
|
|
|
454 while (*(uintptr_t *) le.ip) {
|
|
|
455 lcode = *(ngx_http_script_len_code_pt *) le.ip;
|
|
|
456 len += lcode(&le);
|
|
|
457 }
|
|
|
458 le.ip += sizeof(uintptr_t);
|
|
|
459 }
|
|
|
460
|
|
|
461
|
|
|
462 hh = (ngx_str_t *) plcf->headers_set_hash->buckets;
|
|
|
463
|
|
|
464 if (plcf->upstream.pass_request_headers) {
|
|
|
465 part = &r->headers_in.headers.part;
|
|
|
466 header = part->elts;
|
|
|
467
|
|
|
468 for (i = 0; /* void */; i++) {
|
|
|
469
|
|
|
470 if (i >= part->nelts) {
|
|
|
471 if (part->next == NULL) {
|
|
|
472 break;
|
|
|
473 }
|
|
|
474
|
|
|
475 part = part->next;
|
|
|
476 header = part->elts;
|
|
|
477 i = 0;
|
|
|
478 }
|
|
|
479
|
|
|
480 key = header[i].hash % plcf->headers_set_hash->hash_size;
|
|
|
481
|
|
|
482 if (hh[key].len == header[i].key.len
|
|
|
483 && ngx_strcasecmp(hh[key].data, header[i].key.data) == 0)
|
|
|
484 {
|
|
|
485 continue;
|
|
|
486 }
|
|
|
487
|
|
|
488 len += header[i].key.len + sizeof(": ") - 1
|
|
|
489 + header[i].value.len + sizeof(CRLF) - 1;
|
|
|
490 }
|
|
|
491 }
|
|
|
492
|
|
|
493
|
|
|
494 b = ngx_create_temp_buf(r->pool, len);
|
|
|
495 if (b == NULL) {
|
|
|
496 return NGX_ERROR;
|
|
|
497 }
|
|
|
498
|
|
|
499 cl = ngx_alloc_chain_link(r->pool);
|
|
|
500 if (cl == NULL) {
|
|
|
501 return NGX_ERROR;
|
|
|
502 }
|
|
|
503
|
|
|
504 cl->buf = b;
|
|
|
505
|
|
|
506
|
|
|
507 /* the request line */
|
|
|
508
|
|
110
|
509 b->last = ngx_cpymem(b->last, method.data, method.len);
|
|
58
|
510
|
|
104
|
511 u->uri.data = b->last;
|
|
|
512
|
|
|
513 if (u->conf->uri.len == 0 && r->valid_unparsed_uri) {
|
|
88
|
514 b->last = ngx_cpymem(b->last, r->unparsed_uri.data,
|
|
|
515 r->unparsed_uri.len);
|
|
58
|
516 } else {
|
|
104
|
517 if (r->valid_location) {
|
|
|
518 b->last = ngx_cpymem(b->last, u->conf->uri.data, u->conf->uri.len);
|
|
|
519 }
|
|
100
|
520
|
|
58
|
521 if (escape) {
|
|
|
522 ngx_escape_uri(b->last, r->uri.data + loc_len,
|
|
|
523 r->uri.len - loc_len, NGX_ESCAPE_URI);
|
|
|
524 b->last += r->uri.len - loc_len + escape;
|
|
|
525
|
|
|
526 } else {
|
|
|
527 b->last = ngx_cpymem(b->last, r->uri.data + loc_len,
|
|
|
528 r->uri.len - loc_len);
|
|
|
529 }
|
|
|
530
|
|
|
531 if (r->args.len > 0) {
|
|
|
532 *b->last++ = '?';
|
|
|
533 b->last = ngx_cpymem(b->last, r->args.data, r->args.len);
|
|
|
534 }
|
|
|
535 }
|
|
|
536
|
|
104
|
537 u->uri.len = b->last - u->uri.data;
|
|
|
538
|
|
58
|
539 b->last = ngx_cpymem(b->last, ngx_http_proxy_version,
|
|
|
540 sizeof(ngx_http_proxy_version) - 1);
|
|
|
541
|
|
|
542
|
|
|
543 e.ip = plcf->headers_set->elts;
|
|
|
544 e.pos = b->last;
|
|
|
545 e.request = r;
|
|
|
546
|
|
|
547 le.ip = plcf->headers_set_len->elts;
|
|
|
548
|
|
|
549 while (*(uintptr_t *) le.ip) {
|
|
|
550 lcode = *(ngx_http_script_len_code_pt *) le.ip;
|
|
64
|
551
|
|
|
552 /* skip the header line name length */
|
|
|
553 (void) lcode(&le);
|
|
58
|
554
|
|
|
555 if (*(ngx_http_script_len_code_pt *) le.ip) {
|
|
|
556
|
|
|
557 for (len = 0; *(uintptr_t *) le.ip; len += lcode(&le)) {
|
|
|
558 lcode = *(ngx_http_script_len_code_pt *) le.ip;
|
|
|
559 }
|
|
|
560
|
|
|
561 e.skip = (len == sizeof(CRLF) - 1) ? 1 : 0;
|
|
|
562
|
|
|
563 } else {
|
|
|
564 e.skip = 0;
|
|
|
565 }
|
|
|
566
|
|
|
567 le.ip += sizeof(uintptr_t);
|
|
|
568
|
|
|
569 while (*(uintptr_t *) e.ip) {
|
|
|
570 code = *(ngx_http_script_code_pt *) e.ip;
|
|
|
571 code((ngx_http_script_engine_t *) &e);
|
|
|
572 }
|
|
|
573 e.ip += sizeof(uintptr_t);
|
|
|
574 }
|
|
|
575
|
|
|
576 b->last = e.pos;
|
|
|
577
|
|
|
578
|
|
|
579 if (plcf->upstream.pass_request_headers) {
|
|
|
580 part = &r->headers_in.headers.part;
|
|
|
581 header = part->elts;
|
|
|
582
|
|
|
583 for (i = 0; /* void */; i++) {
|
|
|
584
|
|
|
585 if (i >= part->nelts) {
|
|
|
586 if (part->next == NULL) {
|
|
|
587 break;
|
|
|
588 }
|
|
|
589
|
|
|
590 part = part->next;
|
|
|
591 header = part->elts;
|
|
|
592 i = 0;
|
|
|
593 }
|
|
|
594
|
|
|
595 key = header[i].hash % plcf->headers_set_hash->hash_size;
|
|
|
596
|
|
|
597 if (hh[key].len == header[i].key.len
|
|
|
598 && ngx_strcasecmp(hh[key].data, header[i].key.data) == 0)
|
|
|
599 {
|
|
|
600 continue;
|
|
|
601 }
|
|
|
602
|
|
|
603 b->last = ngx_cpymem(b->last, header[i].key.data,
|
|
|
604 header[i].key.len);
|
|
|
605
|
|
|
606 *b->last++ = ':'; *b->last++ = ' ';
|
|
|
607
|
|
|
608 b->last = ngx_cpymem(b->last, header[i].value.data,
|
|
|
609 header[i].value.len);
|
|
|
610
|
|
|
611 *b->last++ = CR; *b->last++ = LF;
|
|
|
612
|
|
|
613 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
614 "http proxy header: \"%V: %V\"",
|
|
|
615 &header[i].key, &header[i].value);
|
|
|
616 }
|
|
|
617 }
|
|
|
618
|
|
|
619 /* add "\r\n" at the header end */
|
|
|
620 *b->last++ = CR; *b->last++ = LF;
|
|
|
621
|
|
|
622 #if (NGX_DEBUG)
|
|
|
623 {
|
|
|
624 ngx_str_t s;
|
|
|
625
|
|
|
626 s.len = b->last - b->pos;
|
|
|
627 s.data = b->pos;
|
|
|
628 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
629 "http proxy header:\n\"%V\"", &s);
|
|
|
630 }
|
|
|
631 #endif
|
|
|
632
|
|
|
633 if (plcf->upstream.pass_request_body) {
|
|
|
634
|
|
|
635 body = u->request_bufs;
|
|
|
636 u->request_bufs = cl;
|
|
|
637
|
|
|
638 while (body) {
|
|
|
639 b = ngx_alloc_buf(r->pool);
|
|
|
640 if (b == NULL) {
|
|
|
641 return NGX_ERROR;
|
|
|
642 }
|
|
|
643
|
|
|
644 ngx_memcpy(b, body->buf, sizeof(ngx_buf_t));
|
|
|
645
|
|
|
646 cl->next = ngx_alloc_chain_link(r->pool);
|
|
|
647 if (cl->next == NULL) {
|
|
|
648 return NGX_ERROR;
|
|
|
649 }
|
|
|
650
|
|
|
651 cl = cl->next;
|
|
|
652 cl->buf = b;
|
|
|
653
|
|
|
654 body = body->next;
|
|
|
655 }
|
|
|
656
|
|
|
657 } else {
|
|
|
658 u->request_bufs = cl;
|
|
|
659 }
|
|
|
660
|
|
|
661 cl->next = NULL;
|
|
|
662
|
|
|
663 return NGX_OK;
|
|
|
664 }
|
|
|
665
|
|
|
666
|
|
|
667 static ngx_int_t
|
|
|
668 ngx_http_proxy_reinit_request(ngx_http_request_t *r)
|
|
|
669 {
|
|
|
670 ngx_http_proxy_ctx_t *p;
|
|
|
671
|
|
|
672 p = ngx_http_get_module_ctx(r, ngx_http_proxy_module);
|
|
|
673
|
|
|
674 if (p == NULL) {
|
|
|
675 return NGX_OK;
|
|
|
676 }
|
|
|
677
|
|
|
678 p->status = 0;
|
|
|
679 p->status_count = 0;
|
|
|
680 p->status_start = NULL;
|
|
|
681 p->status_end = NULL;
|
|
|
682
|
|
|
683 r->upstream->process_header = ngx_http_proxy_process_status_line;
|
|
|
684
|
|
|
685 return NGX_OK;
|
|
|
686 }
|
|
|
687
|
|
|
688
|
|
|
689 static ngx_int_t
|
|
|
690 ngx_http_proxy_process_status_line(ngx_http_request_t *r)
|
|
|
691 {
|
|
|
692 ngx_int_t rc;
|
|
|
693 ngx_http_upstream_t *u;
|
|
|
694 ngx_http_proxy_ctx_t *p;
|
|
|
695
|
|
|
696 p = ngx_http_get_module_ctx(r, ngx_http_proxy_module);
|
|
|
697
|
|
|
698 if (p == NULL) {
|
|
|
699 p = ngx_pcalloc(r->pool, sizeof(ngx_http_proxy_ctx_t));
|
|
|
700 if (p == NULL) {
|
|
|
701 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
702 }
|
|
|
703
|
|
|
704 ngx_http_set_ctx(r, p, ngx_http_proxy_module);
|
|
|
705 }
|
|
|
706
|
|
|
707 rc = ngx_http_proxy_parse_status_line(r, p);
|
|
|
708
|
|
|
709 if (rc == NGX_AGAIN) {
|
|
|
710 return rc;
|
|
|
711 }
|
|
|
712
|
|
|
713 u = r->upstream;
|
|
|
714
|
|
|
715 if (rc == NGX_HTTP_PROXY_PARSE_NO_HEADER) {
|
|
|
716 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
717 "upstream sent no valid HTTP/1.0 header");
|
|
|
718
|
|
|
719 if (u->accel) {
|
|
|
720 return NGX_HTTP_UPSTREAM_INVALID_HEADER;
|
|
|
721 }
|
|
|
722
|
|
|
723 r->http_version = NGX_HTTP_VERSION_9;
|
|
|
724 p->status = NGX_HTTP_OK;
|
|
|
725
|
|
|
726 return NGX_OK;
|
|
|
727 }
|
|
|
728
|
|
78
|
729 u->headers_in.status_n = p->status;
|
|
58
|
730 u->state->status = p->status;
|
|
|
731
|
|
78
|
732 u->headers_in.status_line.len = p->status_end - p->status_start;
|
|
|
733 u->headers_in.status_line.data = ngx_palloc(r->pool,
|
|
|
734 u->headers_in.status_line.len);
|
|
|
735 if (u->headers_in.status_line.data == NULL) {
|
|
58
|
736 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
737 }
|
|
78
|
738 ngx_memcpy(u->headers_in.status_line.data, p->status_start,
|
|
|
739 u->headers_in.status_line.len);
|
|
58
|
740
|
|
|
741 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
742 "http proxy status %ui \"%V\"",
|
|
78
|
743 u->headers_in.status, &u->headers_in.status_line);
|
|
58
|
744
|
|
|
745 u->process_header = ngx_http_proxy_process_header;
|
|
|
746
|
|
|
747 return ngx_http_proxy_process_header(r);
|
|
|
748 }
|
|
|
749
|
|
|
750
|
|
|
751 static ngx_int_t
|
|
|
752 ngx_http_proxy_parse_status_line(ngx_http_request_t *r, ngx_http_proxy_ctx_t *p)
|
|
|
753 {
|
|
|
754 u_char ch;
|
|
|
755 u_char *pos;
|
|
|
756 ngx_http_upstream_t *u;
|
|
|
757 enum {
|
|
|
758 sw_start = 0,
|
|
|
759 sw_H,
|
|
|
760 sw_HT,
|
|
|
761 sw_HTT,
|
|
|
762 sw_HTTP,
|
|
|
763 sw_first_major_digit,
|
|
|
764 sw_major_digit,
|
|
|
765 sw_first_minor_digit,
|
|
|
766 sw_minor_digit,
|
|
|
767 sw_status,
|
|
|
768 sw_space_after_status,
|
|
|
769 sw_status_text,
|
|
|
770 sw_almost_done
|
|
|
771 } state;
|
|
|
772
|
|
|
773 u = r->upstream;
|
|
|
774
|
|
|
775 state = r->state;
|
|
|
776
|
|
|
777 for (pos = u->header_in.pos; pos < u->header_in.last; pos++) {
|
|
|
778 ch = *pos;
|
|
|
779
|
|
|
780 switch (state) {
|
|
|
781
|
|
|
782 /* "HTTP/" */
|
|
|
783 case sw_start:
|
|
|
784 switch (ch) {
|
|
|
785 case 'H':
|
|
|
786 state = sw_H;
|
|
|
787 break;
|
|
|
788 default:
|
|
|
789 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
|
790 }
|
|
|
791 break;
|
|
|
792
|
|
|
793 case sw_H:
|
|
|
794 switch (ch) {
|
|
|
795 case 'T':
|
|
|
796 state = sw_HT;
|
|
|
797 break;
|
|
|
798 default:
|
|
|
799 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
|
800 }
|
|
|
801 break;
|
|
|
802
|
|
|
803 case sw_HT:
|
|
|
804 switch (ch) {
|
|
|
805 case 'T':
|
|
|
806 state = sw_HTT;
|
|
|
807 break;
|
|
|
808 default:
|
|
|
809 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
|
810 }
|
|
|
811 break;
|
|
|
812
|
|
|
813 case sw_HTT:
|
|
|
814 switch (ch) {
|
|
|
815 case 'P':
|
|
|
816 state = sw_HTTP;
|
|
|
817 break;
|
|
|
818 default:
|
|
|
819 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
|
820 }
|
|
|
821 break;
|
|
|
822
|
|
|
823 case sw_HTTP:
|
|
|
824 switch (ch) {
|
|
|
825 case '/':
|
|
|
826 state = sw_first_major_digit;
|
|
|
827 break;
|
|
|
828 default:
|
|
|
829 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
|
830 }
|
|
|
831 break;
|
|
|
832
|
|
|
833 /* the first digit of major HTTP version */
|
|
|
834 case sw_first_major_digit:
|
|
|
835 if (ch < '1' || ch > '9') {
|
|
|
836 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
|
837 }
|
|
|
838
|
|
|
839 state = sw_major_digit;
|
|
|
840 break;
|
|
|
841
|
|
|
842 /* the major HTTP version or dot */
|
|
|
843 case sw_major_digit:
|
|
|
844 if (ch == '.') {
|
|
|
845 state = sw_first_minor_digit;
|
|
|
846 break;
|
|
|
847 }
|
|
|
848
|
|
|
849 if (ch < '0' || ch > '9') {
|
|
|
850 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
|
851 }
|
|
|
852
|
|
|
853 break;
|
|
|
854
|
|
|
855 /* the first digit of minor HTTP version */
|
|
|
856 case sw_first_minor_digit:
|
|
|
857 if (ch < '0' || ch > '9') {
|
|
|
858 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
|
859 }
|
|
|
860
|
|
|
861 state = sw_minor_digit;
|
|
|
862 break;
|
|
|
863
|
|
|
864 /* the minor HTTP version or the end of the request line */
|
|
|
865 case sw_minor_digit:
|
|
|
866 if (ch == ' ') {
|
|
|
867 state = sw_status;
|
|
|
868 break;
|
|
|
869 }
|
|
|
870
|
|
|
871 if (ch < '0' || ch > '9') {
|
|
|
872 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
|
873 }
|
|
|
874
|
|
|
875 break;
|
|
|
876
|
|
|
877 /* HTTP status code */
|
|
|
878 case sw_status:
|
|
|
879 if (ch < '0' || ch > '9') {
|
|
|
880 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
|
881 }
|
|
|
882
|
|
|
883 p->status = p->status * 10 + ch - '0';
|
|
|
884
|
|
|
885 if (++p->status_count == 3) {
|
|
|
886 state = sw_space_after_status;
|
|
|
887 p->status_start = pos - 2;
|
|
|
888 }
|
|
|
889
|
|
|
890 break;
|
|
|
891
|
|
|
892 /* space or end of line */
|
|
|
893 case sw_space_after_status:
|
|
|
894 switch (ch) {
|
|
|
895 case ' ':
|
|
|
896 state = sw_status_text;
|
|
|
897 break;
|
|
|
898 case '.': /* IIS may send 403.1, 403.2, etc */
|
|
|
899 state = sw_status_text;
|
|
|
900 break;
|
|
|
901 case CR:
|
|
|
902 state = sw_almost_done;
|
|
|
903 break;
|
|
|
904 case LF:
|
|
|
905 goto done;
|
|
|
906 default:
|
|
|
907 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
|
908 }
|
|
|
909 break;
|
|
|
910
|
|
|
911 /* any text until end of line */
|
|
|
912 case sw_status_text:
|
|
|
913 switch (ch) {
|
|
|
914 case CR:
|
|
|
915 state = sw_almost_done;
|
|
|
916
|
|
|
917 break;
|
|
|
918 case LF:
|
|
|
919 goto done;
|
|
|
920 }
|
|
|
921 break;
|
|
|
922
|
|
76
|
923 /* end of status line */
|
|
58
|
924 case sw_almost_done:
|
|
|
925 p->status_end = pos - 1;
|
|
|
926 switch (ch) {
|
|
|
927 case LF:
|
|
|
928 goto done;
|
|
|
929 default:
|
|
|
930 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
|
931 }
|
|
|
932 }
|
|
|
933 }
|
|
|
934
|
|
76
|
935 u->header_in.pos = pos;
|
|
58
|
936 r->state = state;
|
|
|
937
|
|
|
938 return NGX_AGAIN;
|
|
|
939
|
|
|
940 done:
|
|
|
941
|
|
|
942 u->header_in.pos = pos + 1;
|
|
|
943
|
|
|
944 if (p->status_end == NULL) {
|
|
|
945 p->status_end = pos;
|
|
|
946 }
|
|
|
947
|
|
|
948 r->state = sw_start;
|
|
|
949
|
|
|
950 return NGX_OK;
|
|
|
951 }
|
|
|
952
|
|
|
953
|
|
|
954 static ngx_int_t
|
|
|
955 ngx_http_proxy_process_header(ngx_http_request_t *r)
|
|
|
956 {
|
|
|
957 ngx_int_t rc;
|
|
|
958 ngx_uint_t key;
|
|
|
959 ngx_table_elt_t *h;
|
|
|
960 ngx_http_upstream_header_t *hh;
|
|
|
961 ngx_http_upstream_main_conf_t *umcf;
|
|
|
962
|
|
|
963 umcf = ngx_http_get_module_main_conf(r, ngx_http_upstream_module);
|
|
|
964 hh = (ngx_http_upstream_header_t *) umcf->headers_in_hash.buckets;
|
|
|
965
|
|
|
966 for ( ;; ) {
|
|
|
967
|
|
|
968 rc = ngx_http_parse_header_line(r, &r->upstream->header_in);
|
|
|
969
|
|
|
970 if (rc == NGX_OK) {
|
|
|
971
|
|
|
972 /* a header line has been parsed successfully */
|
|
|
973
|
|
|
974 h = ngx_list_push(&r->upstream->headers_in.headers);
|
|
|
975 if (h == NULL) {
|
|
|
976 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
977 }
|
|
|
978
|
|
|
979 h->hash = r->header_hash;
|
|
|
980
|
|
|
981 h->key.len = r->header_name_end - r->header_name_start;
|
|
|
982 h->value.len = r->header_end - r->header_start;
|
|
|
983
|
|
|
984 h->key.data = ngx_palloc(r->pool,
|
|
|
985 h->key.len + 1 + h->value.len + 1);
|
|
|
986 if (h->key.data == NULL) {
|
|
|
987 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
988 }
|
|
|
989
|
|
|
990 h->value.data = h->key.data + h->key.len + 1;
|
|
|
991
|
|
|
992 ngx_cpystrn(h->key.data, r->header_name_start, h->key.len + 1);
|
|
|
993 ngx_cpystrn(h->value.data, r->header_start, h->value.len + 1);
|
|
|
994
|
|
|
995 key = h->hash % umcf->headers_in_hash.hash_size;
|
|
|
996
|
|
|
997 if (hh[key].name.len == h->key.len
|
|
|
998 && ngx_strcasecmp(hh[key].name.data, h->key.data) == 0)
|
|
|
999 {
|
|
|
1000 if (hh[key].handler(r, h, hh[key].offset) != NGX_OK) {
|
|
|
1001 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
1002 }
|
|
|
1003 }
|
|
|
1004
|
|
|
1005 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1006 "http proxy header: \"%V: %V\"",
|
|
|
1007 &h->key, &h->value);
|
|
|
1008
|
|
|
1009 continue;
|
|
|
1010 }
|
|
|
1011
|
|
|
1012 if (rc == NGX_HTTP_PARSE_HEADER_DONE) {
|
|
|
1013
|
|
|
1014 /* a whole header has been parsed successfully */
|
|
|
1015
|
|
|
1016 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1017 "http proxy header done");
|
|
|
1018
|
|
|
1019 return NGX_OK;
|
|
|
1020 }
|
|
|
1021
|
|
70
|
1022 if (rc == NGX_AGAIN) {
|
|
|
1023 return NGX_AGAIN;
|
|
|
1024 }
|
|
|
1025
|
|
58
|
1026 /* there was error while a header line parsing */
|
|
|
1027
|
|
|
1028 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1029 ngx_http_upstream_header_errors[rc
|
|
|
1030 - NGX_HTTP_PARSE_HEADER_ERROR]);
|
|
|
1031
|
|
|
1032 return NGX_HTTP_UPSTREAM_INVALID_HEADER;
|
|
|
1033 }
|
|
|
1034 }
|
|
|
1035
|
|
|
1036
|
|
|
1037 static void
|
|
|
1038 ngx_http_proxy_abort_request(ngx_http_request_t *r)
|
|
|
1039 {
|
|
|
1040 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1041 "abort http proxy request");
|
|
|
1042
|
|
|
1043 return;
|
|
|
1044 }
|
|
|
1045
|
|
|
1046
|
|
|
1047 static void
|
|
|
1048 ngx_http_proxy_finalize_request(ngx_http_request_t *r, ngx_int_t rc)
|
|
|
1049 {
|
|
|
1050 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1051 "finalize http proxy request");
|
|
|
1052
|
|
|
1053 return;
|
|
|
1054 }
|
|
|
1055
|
|
|
1056
|
|
|
1057 static ngx_http_variable_value_t *
|
|
|
1058 ngx_http_proxy_host_variable(ngx_http_request_t *r, uintptr_t data)
|
|
|
1059 {
|
|
|
1060 ngx_http_variable_value_t *vv;
|
|
|
1061 ngx_http_proxy_loc_conf_t *plcf;
|
|
|
1062
|
|
|
1063 vv = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t));
|
|
|
1064 if (vv == NULL) {
|
|
|
1065 return NULL;
|
|
|
1066 }
|
|
|
1067
|
|
|
1068 plcf = ngx_http_get_module_loc_conf(r, ngx_http_proxy_module);
|
|
|
1069
|
|
|
1070 vv->value = 0;
|
|
|
1071 vv->text = plcf->host_header;
|
|
|
1072
|
|
|
1073 return vv;
|
|
|
1074 }
|
|
|
1075
|
|
|
1076
|
|
|
1077 static ngx_http_variable_value_t *
|
|
|
1078 ngx_http_proxy_port_variable(ngx_http_request_t *r, uintptr_t data)
|
|
|
1079 {
|
|
|
1080 ngx_http_variable_value_t *vv;
|
|
|
1081 ngx_http_proxy_loc_conf_t *plcf;
|
|
|
1082
|
|
|
1083 vv = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t));
|
|
|
1084 if (vv == NULL) {
|
|
|
1085 return NULL;
|
|
|
1086 }
|
|
|
1087
|
|
|
1088 plcf = ngx_http_get_module_loc_conf(r, ngx_http_proxy_module);
|
|
|
1089
|
|
|
1090 vv->value = 0;
|
|
|
1091 vv->text = plcf->port_text;
|
|
|
1092
|
|
|
1093 return vv;
|
|
|
1094 }
|
|
|
1095
|
|
|
1096
|
|
|
1097 static ngx_http_variable_value_t *
|
|
|
1098 ngx_http_proxy_add_x_forwarded_for_variable(ngx_http_request_t *r,
|
|
|
1099 uintptr_t data)
|
|
|
1100 {
|
|
|
1101 u_char *p;
|
|
|
1102 ngx_http_variable_value_t *vv;
|
|
|
1103
|
|
|
1104 vv = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t));
|
|
|
1105 if (vv == NULL) {
|
|
|
1106 return NULL;
|
|
|
1107 }
|
|
|
1108
|
|
|
1109 vv->value = 0;
|
|
|
1110
|
|
|
1111 if (r->headers_in.x_forwarded_for == NULL) {
|
|
|
1112 vv->text = r->connection->addr_text;
|
|
|
1113 return vv;
|
|
|
1114 }
|
|
|
1115
|
|
|
1116 vv->text.len = r->headers_in.x_forwarded_for->value.len
|
|
|
1117 + sizeof(", ") - 1 + r->connection->addr_text.len;
|
|
|
1118
|
|
|
1119 p = ngx_palloc(r->pool, vv->text.len);
|
|
|
1120 if (p == NULL) {
|
|
|
1121 return NULL;
|
|
|
1122 }
|
|
|
1123
|
|
|
1124 vv->text.data = p;
|
|
|
1125
|
|
|
1126 p = ngx_cpymem(p, r->headers_in.x_forwarded_for->value.data,
|
|
|
1127 r->headers_in.x_forwarded_for->value.len);
|
|
|
1128
|
|
|
1129 *p++ = ','; *p++ = ' ';
|
|
|
1130
|
|
|
1131 ngx_memcpy(p, r->connection->addr_text.data, r->connection->addr_text.len);
|
|
|
1132
|
|
|
1133 return vv;
|
|
|
1134 }
|
|
|
1135
|
|
|
1136
|
|
|
1137 static ngx_int_t
|
|
|
1138 ngx_http_proxy_rewrite_redirect(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1139 size_t prefix)
|
|
|
1140 {
|
|
|
1141 ngx_int_t rc;
|
|
|
1142 ngx_uint_t i;
|
|
|
1143 ngx_http_proxy_loc_conf_t *plcf;
|
|
|
1144 ngx_http_proxy_redirect_t *pr;
|
|
|
1145
|
|
|
1146 plcf = ngx_http_get_module_loc_conf(r, ngx_http_proxy_module);
|
|
|
1147
|
|
|
1148 pr = plcf->redirects->elts;
|
|
|
1149
|
|
|
1150 if (pr == NULL) {
|
|
|
1151 return NGX_DECLINED;
|
|
|
1152 }
|
|
|
1153
|
|
|
1154 for (i = 0; i < plcf->redirects->nelts; i++) {
|
|
|
1155 rc = pr->handler(r, h, prefix, pr);
|
|
|
1156
|
|
|
1157 if (rc != NGX_DECLINED) {
|
|
|
1158 return rc;
|
|
|
1159 }
|
|
|
1160 }
|
|
|
1161
|
|
|
1162 return NGX_DECLINED;
|
|
|
1163 }
|
|
|
1164
|
|
|
1165
|
|
|
1166 static ngx_int_t
|
|
|
1167 ngx_http_proxy_rewrite_redirect_text(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1168 size_t prefix, ngx_http_proxy_redirect_t *pr)
|
|
|
1169 {
|
|
|
1170 size_t len;
|
|
|
1171 u_char *data, *p;
|
|
|
1172
|
|
|
1173 if (pr->redirect.len > h->value.len - prefix
|
|
|
1174 || ngx_rstrncmp(h->value.data + prefix, pr->redirect.data,
|
|
|
1175 pr->redirect.len) != 0)
|
|
|
1176 {
|
|
|
1177 return NGX_DECLINED;
|
|
|
1178 }
|
|
|
1179
|
|
|
1180 len = prefix + pr->replacement.text.len + h->value.len - pr->redirect.len;
|
|
|
1181
|
|
|
1182 data = ngx_palloc(r->pool, len);
|
|
|
1183 if (data == NULL) {
|
|
|
1184 return NGX_ERROR;
|
|
|
1185 }
|
|
|
1186
|
|
|
1187 p = data;
|
|
|
1188
|
|
|
1189 if (prefix) {
|
|
|
1190 p = ngx_cpymem(p, h->value.data, prefix);
|
|
|
1191 }
|
|
|
1192
|
|
|
1193 p = ngx_cpymem(p, pr->replacement.text.data, pr->replacement.text.len);
|
|
|
1194
|
|
|
1195 ngx_memcpy(p, h->value.data + prefix + pr->redirect.len,
|
|
|
1196 h->value.len - pr->redirect.len - prefix);
|
|
|
1197
|
|
|
1198 h->value.len = len;
|
|
|
1199 h->value.data = data;
|
|
|
1200
|
|
|
1201 return NGX_OK;
|
|
|
1202 }
|
|
|
1203
|
|
|
1204
|
|
|
1205 static ngx_int_t
|
|
|
1206 ngx_http_proxy_rewrite_redirect_vars(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1207 size_t prefix, ngx_http_proxy_redirect_t *pr)
|
|
|
1208 {
|
|
|
1209 size_t len;
|
|
|
1210 u_char *data, *p;
|
|
|
1211 ngx_http_script_code_pt code;
|
|
|
1212 ngx_http_script_engine_t e;
|
|
|
1213 ngx_http_script_len_code_pt lcode;
|
|
|
1214
|
|
|
1215 if (pr->redirect.len > h->value.len - prefix
|
|
|
1216 || ngx_rstrncmp(h->value.data + prefix, pr->redirect.data,
|
|
|
1217 pr->redirect.len) != 0)
|
|
|
1218 {
|
|
|
1219 return NGX_DECLINED;
|
|
|
1220 }
|
|
|
1221
|
|
|
1222 ngx_memzero(&e, sizeof(ngx_http_script_engine_t));
|
|
|
1223
|
|
|
1224 e.ip = pr->replacement.vars.lengths;
|
|
|
1225 e.request = r;
|
|
|
1226
|
|
|
1227 for (len = prefix; *(uintptr_t *) e.ip; len += lcode(&e)) {
|
|
|
1228 lcode = *(ngx_http_script_len_code_pt *) e.ip;
|
|
|
1229 }
|
|
|
1230
|
|
|
1231 data = ngx_palloc(r->pool, len);
|
|
|
1232 if (data == NULL) {
|
|
|
1233 return NGX_ERROR;
|
|
|
1234 }
|
|
|
1235
|
|
|
1236 p = data;
|
|
|
1237
|
|
|
1238 if (prefix) {
|
|
|
1239 p = ngx_cpymem(p, h->value.data, prefix);
|
|
|
1240 }
|
|
|
1241
|
|
|
1242 e.ip = pr->replacement.vars.values;
|
|
|
1243 e.pos = p;
|
|
|
1244
|
|
|
1245 while (*(uintptr_t *) e.ip) {
|
|
|
1246 code = *(ngx_http_script_code_pt *) e.ip;
|
|
|
1247 code(&e);
|
|
|
1248 }
|
|
|
1249
|
|
|
1250 h->value.len = len;
|
|
|
1251 h->value.data = data;
|
|
|
1252
|
|
|
1253 return NGX_OK;
|
|
|
1254 }
|
|
|
1255
|
|
|
1256
|
|
|
1257 static ngx_int_t
|
|
|
1258 ngx_http_proxy_add_variables(ngx_conf_t *cf)
|
|
|
1259 {
|
|
|
1260 ngx_http_variable_t *var, *v;
|
|
|
1261
|
|
|
1262 for (v = ngx_http_proxy_vars; v->name.len; v++) {
|
|
|
1263 var = ngx_http_add_variable(cf, &v->name, v->flags);
|
|
|
1264 if (var == NULL) {
|
|
|
1265 return NGX_ERROR;
|
|
|
1266 }
|
|
|
1267
|
|
|
1268 var->handler = v->handler;
|
|
|
1269 var->data = v->data;
|
|
|
1270 }
|
|
|
1271
|
|
|
1272 return NGX_OK;
|
|
|
1273 }
|
|
|
1274
|
|
|
1275
|
|
|
1276 static void *
|
|
|
1277 ngx_http_proxy_create_loc_conf(ngx_conf_t *cf)
|
|
|
1278 {
|
|
|
1279 ngx_http_proxy_loc_conf_t *conf;
|
|
|
1280
|
|
|
1281 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_proxy_loc_conf_t));
|
|
|
1282 if (conf == NULL) {
|
|
|
1283 return NGX_CONF_ERROR;
|
|
|
1284 }
|
|
|
1285
|
|
|
1286 /*
|
|
|
1287 * set by ngx_pcalloc():
|
|
|
1288 *
|
|
|
1289 * conf->upstream.bufs.num = 0;
|
|
|
1290 * conf->upstream.path = NULL;
|
|
|
1291 * conf->upstream.next_upstream = 0;
|
|
|
1292 * conf->upstream.temp_path = NULL;
|
|
|
1293 * conf->upstream.schema = { 0, NULL };
|
|
|
1294 * conf->upstream.uri = { 0, NULL };
|
|
|
1295 * conf->upstream.location = NULL;
|
|
|
1296 *
|
|
110
|
1297 * conf->method = NULL;
|
|
58
|
1298 * conf->headers_source = NULL;
|
|
|
1299 * conf->headers_set_len = NULL;
|
|
|
1300 * conf->headers_set = NULL;
|
|
|
1301 * conf->headers_set_hash = NULL;
|
|
|
1302 * conf->rewrite_locations = NULL;
|
|
|
1303 */
|
|
|
1304
|
|
|
1305 conf->upstream.connect_timeout = NGX_CONF_UNSET_MSEC;
|
|
|
1306 conf->upstream.send_timeout = NGX_CONF_UNSET_MSEC;
|
|
|
1307 conf->upstream.read_timeout = NGX_CONF_UNSET_MSEC;
|
|
|
1308
|
|
|
1309 conf->upstream.send_lowat = NGX_CONF_UNSET_SIZE;
|
|
|
1310 conf->upstream.header_buffer_size = NGX_CONF_UNSET_SIZE;
|
|
78
|
1311
|
|
|
1312 conf->upstream.busy_buffers_size_conf = NGX_CONF_UNSET_SIZE;
|
|
|
1313 conf->upstream.max_temp_file_size_conf = NGX_CONF_UNSET_SIZE;
|
|
|
1314 conf->upstream.temp_file_write_size_conf = NGX_CONF_UNSET_SIZE;
|
|
58
|
1315
|
|
110
|
1316 conf->upstream.max_fails = NGX_CONF_UNSET_UINT;
|
|
|
1317 conf->upstream.fail_timeout = NGX_CONF_UNSET;
|
|
|
1318
|
|
58
|
1319 conf->upstream.pass_request_headers = NGX_CONF_UNSET;
|
|
|
1320 conf->upstream.pass_request_body = NGX_CONF_UNSET;
|
|
110
|
1321
|
|
58
|
1322 conf->upstream.redirect_errors = NGX_CONF_UNSET;
|
|
|
1323
|
|
|
1324 /* "proxy_cyclic_temp_file" is disabled */
|
|
|
1325 conf->upstream.cyclic_temp_file = 0;
|
|
|
1326
|
|
|
1327 conf->upstream.pass_x_powered_by = NGX_CONF_UNSET;
|
|
|
1328 conf->upstream.pass_server = NGX_CONF_UNSET;
|
|
|
1329 conf->upstream.pass_date = 0;
|
|
|
1330 conf->upstream.pass_x_accel_expires = NGX_CONF_UNSET;
|
|
|
1331
|
|
|
1332 conf->redirect = NGX_CONF_UNSET;
|
|
|
1333
|
|
|
1334 return conf;
|
|
|
1335 }
|
|
|
1336
|
|
|
1337
|
|
|
1338 static char *
|
|
|
1339 ngx_http_proxy_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child)
|
|
|
1340 {
|
|
|
1341 ngx_http_proxy_loc_conf_t *prev = parent;
|
|
|
1342 ngx_http_proxy_loc_conf_t *conf = child;
|
|
|
1343
|
|
|
1344 u_char *p;
|
|
|
1345 size_t size;
|
|
|
1346 uintptr_t *code;
|
|
|
1347 ngx_str_t *name;
|
|
|
1348 ngx_uint_t i;
|
|
|
1349 ngx_table_elt_t *src, *s, *h;
|
|
|
1350 ngx_http_proxy_redirect_t *pr;
|
|
|
1351 ngx_http_script_compile_t sc;
|
|
|
1352 ngx_http_script_copy_code_t *copy;
|
|
|
1353
|
|
|
1354 ngx_conf_merge_msec_value(conf->upstream.connect_timeout,
|
|
|
1355 prev->upstream.connect_timeout, 60000);
|
|
|
1356
|
|
|
1357 ngx_conf_merge_msec_value(conf->upstream.send_timeout,
|
|
|
1358 prev->upstream.send_timeout, 60000);
|
|
|
1359
|
|
|
1360 ngx_conf_merge_msec_value(conf->upstream.read_timeout,
|
|
|
1361 prev->upstream.read_timeout, 60000);
|
|
|
1362
|
|
|
1363 ngx_conf_merge_size_value(conf->upstream.send_lowat,
|
|
|
1364 prev->upstream.send_lowat, 0);
|
|
|
1365
|
|
|
1366 ngx_conf_merge_size_value(conf->upstream.header_buffer_size,
|
|
|
1367 prev->upstream.header_buffer_size,
|
|
|
1368 (size_t) ngx_pagesize);
|
|
|
1369
|
|
|
1370 ngx_conf_merge_bufs_value(conf->upstream.bufs, prev->upstream.bufs,
|
|
|
1371 8, ngx_pagesize);
|
|
|
1372
|
|
|
1373 if (conf->upstream.bufs.num < 2) {
|
|
|
1374 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1375 "there must be at least 2 \"proxy_buffers\"");
|
|
|
1376 return NGX_CONF_ERROR;
|
|
|
1377 }
|
|
|
1378
|
|
|
1379
|
|
|
1380 size = conf->upstream.header_buffer_size;
|
|
|
1381 if (size < conf->upstream.bufs.size) {
|
|
|
1382 size = conf->upstream.bufs.size;
|
|
|
1383 }
|
|
|
1384
|
|
|
1385
|
|
78
|
1386 ngx_conf_merge_size_value(conf->upstream.busy_buffers_size_conf,
|
|
|
1387 prev->upstream.busy_buffers_size_conf,
|
|
58
|
1388 NGX_CONF_UNSET_SIZE);
|
|
|
1389
|
|
78
|
1390 if (conf->upstream.busy_buffers_size_conf == NGX_CONF_UNSET_SIZE) {
|
|
58
|
1391 conf->upstream.busy_buffers_size = 2 * size;
|
|
78
|
1392 } else {
|
|
|
1393 conf->upstream.busy_buffers_size =
|
|
|
1394 conf->upstream.busy_buffers_size_conf;
|
|
|
1395 }
|
|
|
1396
|
|
|
1397 if (conf->upstream.busy_buffers_size < size) {
|
|
58
|
1398 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1399 "\"proxy_busy_buffers_size\" must be equal or bigger than "
|
|
|
1400 "maximum of the value of \"proxy_header_buffer_size\" and "
|
|
|
1401 "one of the \"proxy_buffers\"");
|
|
|
1402
|
|
|
1403 return NGX_CONF_ERROR;
|
|
78
|
1404 }
|
|
58
|
1405
|
|
78
|
1406 if (conf->upstream.busy_buffers_size
|
|
|
1407 > (conf->upstream.bufs.num - 1) * conf->upstream.bufs.size)
|
|
58
|
1408 {
|
|
|
1409 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1410 "\"proxy_busy_buffers_size\" must be less than "
|
|
|
1411 "the size of all \"proxy_buffers\" minus one buffer");
|
|
|
1412
|
|
|
1413 return NGX_CONF_ERROR;
|
|
|
1414 }
|
|
78
|
1415
|
|
58
|
1416
|
|
78
|
1417 ngx_conf_merge_size_value(conf->upstream.temp_file_write_size_conf,
|
|
|
1418 prev->upstream.temp_file_write_size_conf,
|
|
58
|
1419 NGX_CONF_UNSET_SIZE);
|
|
|
1420
|
|
78
|
1421 if (conf->upstream.temp_file_write_size_conf == NGX_CONF_UNSET_SIZE) {
|
|
58
|
1422 conf->upstream.temp_file_write_size = 2 * size;
|
|
78
|
1423 } else {
|
|
|
1424 conf->upstream.temp_file_write_size =
|
|
|
1425 conf->upstream.temp_file_write_size_conf;
|
|
|
1426 }
|
|
|
1427
|
|
|
1428 if (conf->upstream.temp_file_write_size < size) {
|
|
58
|
1429 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1430 "\"proxy_temp_file_write_size\" must be equal or bigger than "
|
|
|
1431 "maximum of the value of \"proxy_header_buffer_size\" and "
|
|
|
1432 "one of the \"proxy_buffers\"");
|
|
|
1433
|
|
|
1434 return NGX_CONF_ERROR;
|
|
|
1435 }
|
|
|
1436
|
|
78
|
1437 ngx_conf_merge_size_value(conf->upstream.max_temp_file_size_conf,
|
|
|
1438 prev->upstream.max_temp_file_size_conf,
|
|
58
|
1439 NGX_CONF_UNSET_SIZE);
|
|
|
1440
|
|
78
|
1441 if (conf->upstream.max_temp_file_size_conf == NGX_CONF_UNSET_SIZE) {
|
|
58
|
1442 conf->upstream.max_temp_file_size = 1024 * 1024 * 1024;
|
|
78
|
1443 } else {
|
|
|
1444 conf->upstream.max_temp_file_size =
|
|
|
1445 conf->upstream.max_temp_file_size_conf;
|
|
|
1446 }
|
|
58
|
1447
|
|
78
|
1448 if (conf->upstream.max_temp_file_size != 0
|
|
|
1449 && conf->upstream.max_temp_file_size < size)
|
|
58
|
1450 {
|
|
|
1451 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
110
|
1452 "\"proxy_max_temp_file_size\" must be equal to zero to disable "
|
|
58
|
1453 "the temporary files usage or must be equal or bigger than "
|
|
110
|
1454 "maximum of the value of \"proxy_header_buffer_size\" and "
|
|
|
1455 "one of the \"proxy_buffers\"");
|
|
58
|
1456
|
|
|
1457 return NGX_CONF_ERROR;
|
|
|
1458 }
|
|
|
1459
|
|
78
|
1460
|
|
58
|
1461 ngx_conf_merge_bitmask_value(conf->upstream.next_upstream,
|
|
|
1462 prev->upstream.next_upstream,
|
|
|
1463 (NGX_CONF_BITMASK_SET
|
|
|
1464 |NGX_HTTP_UPSTREAM_FT_ERROR
|
|
|
1465 |NGX_HTTP_UPSTREAM_FT_TIMEOUT));
|
|
|
1466
|
|
110
|
1467 ngx_conf_merge_unsigned_value(conf->upstream.max_fails,
|
|
|
1468 prev->upstream.max_fails, 1);
|
|
|
1469
|
|
|
1470 ngx_conf_merge_sec_value(conf->upstream.fail_timeout,
|
|
|
1471 prev->upstream.fail_timeout, 10);
|
|
|
1472
|
|
|
1473 if (conf->peers && conf->peers->number > 1) {
|
|
|
1474 for (i = 0; i < conf->peers->number; i++) {
|
|
|
1475 conf->peers->peer[i].weight = 1;
|
|
|
1476 conf->peers->peer[i].max_fails = conf->upstream.max_fails;
|
|
|
1477 conf->peers->peer[i].fail_timeout = conf->upstream.fail_timeout;
|
|
|
1478 }
|
|
|
1479 }
|
|
|
1480
|
|
58
|
1481 ngx_conf_merge_path_value(conf->upstream.temp_path,
|
|
|
1482 prev->upstream.temp_path,
|
|
|
1483 NGX_HTTP_PROXY_TEMP_PATH, 1, 2, 0,
|
|
|
1484 ngx_garbage_collector_temp_handler, cf);
|
|
|
1485
|
|
110
|
1486 if (conf->method.len == 0) {
|
|
|
1487 conf->method = prev->method;
|
|
|
1488
|
|
|
1489 } else {
|
|
|
1490 conf->method.data[conf->method.len] = ' ';
|
|
|
1491 conf->method.len++;
|
|
58
|
1492 }
|
|
|
1493
|
|
|
1494 ngx_conf_merge_value(conf->upstream.pass_request_headers,
|
|
|
1495 prev->upstream.pass_request_headers, 1);
|
|
|
1496 ngx_conf_merge_value(conf->upstream.pass_request_body,
|
|
|
1497 prev->upstream.pass_request_body, 1);
|
|
|
1498
|
|
78
|
1499 ngx_conf_merge_value(conf->upstream.redirect_errors,
|
|
58
|
1500 prev->upstream.redirect_errors, 0);
|
|
|
1501
|
|
78
|
1502 ngx_conf_merge_value(conf->upstream.pass_x_powered_by,
|
|
58
|
1503 prev->upstream.pass_x_powered_by, 1);
|
|
78
|
1504 ngx_conf_merge_value(conf->upstream.pass_server,
|
|
58
|
1505 prev->upstream.pass_server, 0);
|
|
78
|
1506 ngx_conf_merge_value(conf->upstream.pass_x_accel_expires,
|
|
58
|
1507 prev->upstream.pass_x_accel_expires, 0);
|
|
|
1508
|
|
|
1509
|
|
|
1510 ngx_conf_merge_value(conf->redirect, prev->redirect, 1);
|
|
|
1511
|
|
|
1512 if (conf->redirect) {
|
|
|
1513
|
|
|
1514 if (conf->redirects == NULL) {
|
|
|
1515 conf->redirects = prev->redirects;
|
|
|
1516 }
|
|
|
1517
|
|
|
1518 if (conf->redirects == NULL && conf->upstream.url.data) {
|
|
|
1519
|
|
|
1520 conf->redirects = ngx_array_create(cf->pool, 1,
|
|
|
1521 sizeof(ngx_http_proxy_redirect_t));
|
|
|
1522 if (conf->redirects == NULL) {
|
|
|
1523 return NGX_CONF_ERROR;
|
|
|
1524 }
|
|
|
1525
|
|
|
1526 pr = ngx_array_push(conf->redirects);
|
|
|
1527 if (pr == NULL) {
|
|
|
1528 return NGX_CONF_ERROR;
|
|
|
1529 }
|
|
|
1530
|
|
|
1531 pr->handler = ngx_http_proxy_rewrite_redirect_text;
|
|
|
1532 pr->redirect = conf->upstream.url;
|
|
|
1533 pr->replacement.text = *conf->upstream.location;
|
|
|
1534 }
|
|
|
1535 }
|
|
|
1536
|
|
|
1537
|
|
|
1538 if (conf->peers == NULL) {
|
|
|
1539 conf->peers = prev->peers;
|
|
|
1540 }
|
|
|
1541
|
|
|
1542 if (conf->headers_source == NULL) {
|
|
|
1543 conf->headers_source = prev->headers_source;
|
|
|
1544 conf->headers_set_len = prev->headers_set_len;
|
|
|
1545 conf->headers_set = prev->headers_set;
|
|
|
1546 conf->headers_set_hash = prev->headers_set_hash;
|
|
|
1547 }
|
|
|
1548
|
|
|
1549 if (conf->headers_set_hash) {
|
|
|
1550 return NGX_CONF_OK;
|
|
|
1551 }
|
|
|
1552
|
|
|
1553
|
|
|
1554 conf->headers_names = ngx_array_create(cf->pool, 4, sizeof(ngx_str_t));
|
|
|
1555 if (conf->headers_names == NULL) {
|
|
|
1556 return NGX_CONF_ERROR;
|
|
|
1557 }
|
|
|
1558
|
|
|
1559 if (conf->headers_source == NULL) {
|
|
|
1560 conf->headers_source = ngx_array_create(cf->pool, 4,
|
|
|
1561 sizeof(ngx_table_elt_t));
|
|
|
1562 if (conf->headers_source == NULL) {
|
|
|
1563 return NGX_CONF_ERROR;
|
|
|
1564 }
|
|
|
1565 }
|
|
|
1566
|
|
|
1567 conf->headers_set_len = ngx_array_create(cf->pool, 64, 1);
|
|
|
1568 if (conf->headers_set_len == NULL) {
|
|
|
1569 return NGX_CONF_ERROR;
|
|
|
1570 }
|
|
|
1571
|
|
|
1572 conf->headers_set = ngx_array_create(cf->pool, 512, 1);
|
|
|
1573 if (conf->headers_set == NULL) {
|
|
|
1574 return NGX_CONF_ERROR;
|
|
|
1575 }
|
|
|
1576
|
|
|
1577
|
|
|
1578 src = conf->headers_source->elts;
|
|
|
1579
|
|
|
1580 for (h = ngx_http_proxy_headers; h->key.len; h++) {
|
|
|
1581
|
|
|
1582 for (i = 0; i < conf->headers_source->nelts; i++) {
|
|
|
1583 if (ngx_strcasecmp(h->key.data, src[i].key.data) == 0) {
|
|
|
1584 goto next;
|
|
|
1585 }
|
|
|
1586 }
|
|
|
1587
|
|
|
1588 s = ngx_array_push(conf->headers_source);
|
|
|
1589 if (s == NULL) {
|
|
|
1590 return NGX_CONF_ERROR;
|
|
|
1591 }
|
|
|
1592
|
|
|
1593 *s = *h;
|
|
|
1594
|
|
66
|
1595 src = conf->headers_source->elts;
|
|
|
1596
|
|
58
|
1597 next:
|
|
|
1598
|
|
|
1599 continue;
|
|
|
1600 }
|
|
|
1601
|
|
|
1602 for (i = 0; i < conf->headers_source->nelts; i++) {
|
|
|
1603
|
|
|
1604 name = ngx_array_push(conf->headers_names);
|
|
|
1605 if (name == NULL) {
|
|
|
1606 return NGX_CONF_ERROR;
|
|
|
1607 }
|
|
|
1608
|
|
|
1609 *name = src[i].key;
|
|
|
1610
|
|
68
|
1611 if (src[i].value.len == 0) {
|
|
|
1612 continue;
|
|
|
1613 }
|
|
|
1614
|
|
58
|
1615 if (ngx_http_script_variables_count(&src[i].value) == 0) {
|
|
|
1616 copy = ngx_array_push_n(conf->headers_set_len,
|
|
|
1617 sizeof(ngx_http_script_copy_code_t));
|
|
|
1618 if (copy == NULL) {
|
|
|
1619 return NGX_CONF_ERROR;
|
|
|
1620 }
|
|
|
1621
|
|
|
1622 copy->code = (ngx_http_script_code_pt)
|
|
|
1623 ngx_http_script_copy_len_code;
|
|
|
1624 copy->len = src[i].key.len + sizeof(": ") - 1
|
|
|
1625 + src[i].value.len + sizeof(CRLF) - 1;
|
|
|
1626
|
|
|
1627
|
|
|
1628 size = (sizeof(ngx_http_script_copy_code_t)
|
|
|
1629 + src[i].key.len + sizeof(": ") - 1
|
|
|
1630 + src[i].value.len + sizeof(CRLF) - 1
|
|
|
1631 + sizeof(uintptr_t) - 1)
|
|
|
1632 & ~(sizeof(uintptr_t) - 1);
|
|
|
1633
|
|
|
1634 copy = ngx_array_push_n(conf->headers_set, size);
|
|
|
1635 if (copy == NULL) {
|
|
|
1636 return NGX_CONF_ERROR;
|
|
|
1637 }
|
|
|
1638
|
|
|
1639 copy->code = ngx_http_script_copy_code;
|
|
|
1640 copy->len = src[i].key.len + sizeof(": ") - 1
|
|
|
1641 + src[i].value.len + sizeof(CRLF) - 1;
|
|
|
1642
|
|
|
1643 p = (u_char *) copy + sizeof(ngx_http_script_copy_code_t);
|
|
|
1644
|
|
|
1645 p = ngx_cpymem(p, src[i].key.data, src[i].key.len);
|
|
|
1646 *p++ = ':'; *p++ = ' ';
|
|
|
1647 p = ngx_cpymem(p, src[i].value.data, src[i].value.len);
|
|
|
1648 *p++ = CR; *p = LF;
|
|
|
1649
|
|
|
1650 } else {
|
|
|
1651 copy = ngx_array_push_n(conf->headers_set_len,
|
|
|
1652 sizeof(ngx_http_script_copy_code_t));
|
|
|
1653 if (copy == NULL) {
|
|
|
1654 return NGX_CONF_ERROR;
|
|
|
1655 }
|
|
|
1656
|
|
|
1657 copy->code = (ngx_http_script_code_pt)
|
|
|
1658 ngx_http_script_copy_len_code;
|
|
|
1659 copy->len = src[i].key.len + sizeof(": ") - 1;
|
|
|
1660
|
|
|
1661
|
|
|
1662 size = (sizeof(ngx_http_script_copy_code_t)
|
|
|
1663 + src[i].key.len + sizeof(": ") - 1 + sizeof(uintptr_t) - 1)
|
|
|
1664 & ~(sizeof(uintptr_t) - 1);
|
|
|
1665
|
|
|
1666 copy = ngx_array_push_n(conf->headers_set, size);
|
|
|
1667 if (copy == NULL) {
|
|
|
1668 return NGX_CONF_ERROR;
|
|
|
1669 }
|
|
|
1670
|
|
|
1671 copy->code = ngx_http_script_copy_code;
|
|
|
1672 copy->len = src[i].key.len + sizeof(": ") - 1;
|
|
|
1673
|
|
|
1674 p = (u_char *) copy + sizeof(ngx_http_script_copy_code_t);
|
|
|
1675 p = ngx_cpymem(p, src[i].key.data, src[i].key.len);
|
|
|
1676 *p++ = ':'; *p = ' ';
|
|
|
1677
|
|
|
1678
|
|
|
1679 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t));
|
|
|
1680
|
|
|
1681 sc.cf = cf;
|
|
|
1682 sc.source = &src[i].value;
|
|
|
1683 sc.lengths = &conf->headers_set_len;
|
|
|
1684 sc.values = &conf->headers_set;
|
|
|
1685
|
|
|
1686 if (ngx_http_script_compile(&sc) != NGX_OK) {
|
|
|
1687 return NGX_CONF_ERROR;
|
|
|
1688 }
|
|
|
1689
|
|
|
1690
|
|
|
1691 copy = ngx_array_push_n(conf->headers_set_len,
|
|
|
1692 sizeof(ngx_http_script_copy_code_t));
|
|
|
1693 if (copy == NULL) {
|
|
|
1694 return NGX_CONF_ERROR;
|
|
|
1695 }
|
|
|
1696
|
|
|
1697 copy->code = (ngx_http_script_code_pt)
|
|
|
1698 ngx_http_script_copy_len_code;
|
|
|
1699 copy->len = sizeof(CRLF) - 1;
|
|
|
1700
|
|
|
1701
|
|
|
1702 size = (sizeof(ngx_http_script_copy_code_t)
|
|
|
1703 + sizeof(CRLF) - 1 + sizeof(uintptr_t) - 1)
|
|
|
1704 & ~(sizeof(uintptr_t) - 1);
|
|
|
1705
|
|
|
1706 copy = ngx_array_push_n(conf->headers_set, size);
|
|
|
1707 if (copy == NULL) {
|
|
|
1708 return NGX_CONF_ERROR;
|
|
|
1709 }
|
|
|
1710
|
|
|
1711 copy->code = ngx_http_script_copy_code;
|
|
|
1712 copy->len = sizeof(CRLF) - 1;
|
|
|
1713
|
|
|
1714 p = (u_char *) copy + sizeof(ngx_http_script_copy_code_t);
|
|
|
1715 *p++ = CR; *p = LF;
|
|
|
1716 }
|
|
|
1717
|
|
|
1718 code = ngx_array_push_n(conf->headers_set_len, sizeof(uintptr_t));
|
|
|
1719 if (code == NULL) {
|
|
|
1720 return NGX_CONF_ERROR;
|
|
|
1721 }
|
|
|
1722
|
|
|
1723 *code = (uintptr_t) NULL;
|
|
|
1724
|
|
|
1725 code = ngx_array_push_n(conf->headers_set, sizeof(uintptr_t));
|
|
|
1726 if (code == NULL) {
|
|
|
1727 return NGX_CONF_ERROR;
|
|
|
1728 }
|
|
|
1729
|
|
|
1730 *code = (uintptr_t) NULL;
|
|
|
1731 }
|
|
|
1732
|
|
|
1733 code = ngx_array_push_n(conf->headers_set_len, sizeof(uintptr_t));
|
|
|
1734 if (code == NULL) {
|
|
|
1735 return NGX_CONF_ERROR;
|
|
|
1736 }
|
|
|
1737
|
|
|
1738 *code = (uintptr_t) NULL;
|
|
|
1739
|
|
|
1740
|
|
|
1741 conf->headers_set_hash = ngx_pcalloc(cf->pool, sizeof(ngx_hash_t));
|
|
|
1742 if (conf->headers_set_hash == NULL) {
|
|
|
1743 return NGX_CONF_ERROR;
|
|
|
1744 }
|
|
|
1745
|
|
|
1746 conf->headers_set_hash->max_size = 100;
|
|
|
1747 conf->headers_set_hash->bucket_limit = 1;
|
|
|
1748 conf->headers_set_hash->bucket_size = sizeof(ngx_str_t);
|
|
|
1749 conf->headers_set_hash->name = "proxy_headers";
|
|
|
1750
|
|
|
1751 if (ngx_hash_init(conf->headers_set_hash, cf->pool,
|
|
|
1752 conf->headers_names->elts, conf->headers_names->nelts) != NGX_OK)
|
|
|
1753 {
|
|
|
1754 return NGX_CONF_ERROR;
|
|
|
1755 }
|
|
|
1756
|
|
|
1757 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, cf->log, 0,
|
|
|
1758 "proxy_headers hash size: %ui, "
|
|
|
1759 "max buckets per entry: %ui",
|
|
|
1760 conf->headers_set_hash->hash_size,
|
|
|
1761 conf->headers_set_hash->min_buckets);
|
|
|
1762
|
|
|
1763 return NGX_CONF_OK;
|
|
|
1764 }
|
|
|
1765
|
|
|
1766
|
|
|
1767 static char *
|
|
|
1768 ngx_http_proxy_pass(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
1769 {
|
|
|
1770 ngx_http_proxy_loc_conf_t *plcf = conf;
|
|
|
1771
|
|
|
1772 ngx_str_t *value, *url;
|
|
|
1773 ngx_inet_upstream_t inet_upstream;
|
|
|
1774 ngx_http_core_loc_conf_t *clcf;
|
|
|
1775 #if (NGX_HAVE_UNIX_DOMAIN)
|
|
|
1776 ngx_unix_domain_upstream_t unix_upstream;
|
|
|
1777 #endif
|
|
|
1778
|
|
104
|
1779 if (plcf->upstream.schema.len) {
|
|
|
1780 return "is duplicate";
|
|
|
1781 }
|
|
|
1782
|
|
58
|
1783 value = cf->args->elts;
|
|
|
1784
|
|
|
1785 url = &value[1];
|
|
|
1786
|
|
|
1787 if (ngx_strncasecmp(url->data, "http://", 7) != 0) {
|
|
|
1788 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid URL prefix");
|
|
|
1789 return NGX_CONF_ERROR;
|
|
|
1790 }
|
|
|
1791
|
|
|
1792 if (ngx_strncasecmp(url->data + 7, "unix:", 5) == 0) {
|
|
|
1793
|
|
|
1794 #if (NGX_HAVE_UNIX_DOMAIN)
|
|
|
1795
|
|
|
1796 ngx_memzero(&unix_upstream, sizeof(ngx_unix_domain_upstream_t));
|
|
|
1797
|
|
|
1798 unix_upstream.name = *url;
|
|
|
1799 unix_upstream.url.len = url->len - 7;
|
|
|
1800 unix_upstream.url.data = url->data + 7;
|
|
|
1801 unix_upstream.uri_part = 1;
|
|
|
1802
|
|
|
1803 plcf->peers = ngx_unix_upstream_parse(cf, &unix_upstream);
|
|
|
1804 if (plcf->peers == NULL) {
|
|
|
1805 return NGX_CONF_ERROR;
|
|
|
1806 }
|
|
|
1807
|
|
|
1808 plcf->host_header.len = sizeof("localhost") - 1;
|
|
|
1809 plcf->host_header.data = (u_char *) "localhost";
|
|
|
1810 plcf->upstream.uri = unix_upstream.uri;
|
|
|
1811
|
|
|
1812 #else
|
|
|
1813 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1814 "the unix domain sockets are not supported "
|
|
|
1815 "on this platform");
|
|
|
1816 return NGX_CONF_ERROR;
|
|
|
1817
|
|
|
1818 #endif
|
|
|
1819
|
|
|
1820 } else {
|
|
|
1821 ngx_memzero(&inet_upstream, sizeof(ngx_inet_upstream_t));
|
|
|
1822
|
|
|
1823 inet_upstream.name = *url;
|
|
|
1824 inet_upstream.url.len = url->len - 7;
|
|
|
1825 inet_upstream.url.data = url->data + 7;
|
|
|
1826 inet_upstream.default_port_value = 80;
|
|
|
1827 inet_upstream.uri_part = 1;
|
|
|
1828
|
|
|
1829 plcf->peers = ngx_inet_upstream_parse(cf, &inet_upstream);
|
|
|
1830 if (plcf->peers == NULL) {
|
|
|
1831 return NGX_CONF_ERROR;
|
|
|
1832 }
|
|
|
1833
|
|
|
1834 plcf->host_header = inet_upstream.host_header;
|
|
|
1835 plcf->port_text = inet_upstream.port_text;
|
|
|
1836 plcf->upstream.uri = inet_upstream.uri;
|
|
|
1837 }
|
|
|
1838
|
|
|
1839 plcf->upstream.schema.len = sizeof("http://") - 1;
|
|
|
1840 plcf->upstream.schema.data = (u_char *) "http://";
|
|
|
1841
|
|
|
1842 clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module);
|
|
|
1843
|
|
|
1844 clcf->handler = ngx_http_proxy_handler;
|
|
|
1845
|
|
104
|
1846 plcf->upstream.location = &clcf->name;
|
|
|
1847
|
|
58
|
1848 #if (NGX_PCRE)
|
|
104
|
1849
|
|
|
1850 if (clcf->regex && plcf->upstream.uri.len) {
|
|
|
1851 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1852 "\"proxy_pass\" may not have URI part in "
|
|
|
1853 "location given by regular expression");
|
|
|
1854 return NGX_CONF_ERROR;
|
|
|
1855 }
|
|
|
1856
|
|
58
|
1857 #endif
|
|
|
1858
|
|
|
1859 plcf->upstream.url = *url;
|
|
|
1860
|
|
|
1861 if (clcf->name.data[clcf->name.len - 1] == '/') {
|
|
|
1862 clcf->auto_redirect = 1;
|
|
|
1863 }
|
|
|
1864
|
|
|
1865 return NGX_CONF_OK;
|
|
|
1866 }
|
|
|
1867
|
|
|
1868
|
|
|
1869 static char *
|
|
|
1870 ngx_http_proxy_redirect(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
1871 {
|
|
|
1872 ngx_http_proxy_loc_conf_t *plcf = conf;
|
|
|
1873
|
|
|
1874 ngx_str_t *value;
|
|
|
1875 ngx_array_t *vars_lengths, *vars_values;
|
|
|
1876 ngx_http_script_compile_t sc;
|
|
|
1877 ngx_http_proxy_redirect_t *pr;
|
|
|
1878
|
|
|
1879 if (plcf->redirect == 0) {
|
|
|
1880 return NGX_CONF_OK;
|
|
|
1881 }
|
|
|
1882
|
|
|
1883 value = cf->args->elts;
|
|
|
1884
|
|
|
1885 if (ngx_strcmp(value[1].data, "off") == 0) {
|
|
|
1886 plcf->redirect = 0;
|
|
|
1887 plcf->redirects = NULL;
|
|
|
1888 return NGX_CONF_OK;
|
|
|
1889 }
|
|
|
1890
|
|
|
1891 if (plcf->redirects == NULL) {
|
|
|
1892 plcf->redirects = ngx_array_create(cf->pool, 1,
|
|
|
1893 sizeof(ngx_http_proxy_redirect_t));
|
|
|
1894 if (plcf->redirects == NULL) {
|
|
|
1895 return NGX_CONF_ERROR;
|
|
|
1896 }
|
|
|
1897 }
|
|
|
1898
|
|
|
1899 pr = ngx_array_push(plcf->redirects);
|
|
|
1900 if (pr == NULL) {
|
|
|
1901 return NGX_CONF_ERROR;
|
|
|
1902 }
|
|
|
1903
|
|
|
1904 if (cf->args->nelts == 2 && ngx_strcmp(value[1].data, "default") == 0) {
|
|
|
1905 if (plcf->upstream.url.data == NULL) {
|
|
|
1906 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1907 "\"proxy_rewrite_location default\" must go "
|
|
|
1908 "after the \"proxy_pass\" directive");
|
|
|
1909 return NGX_CONF_ERROR;
|
|
|
1910 }
|
|
|
1911
|
|
|
1912 pr->handler = ngx_http_proxy_rewrite_redirect_text;
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|
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1913 pr->redirect = plcf->upstream.url;
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|
|
1914 pr->replacement.text = *plcf->upstream.location;
|
|
|
1915
|
|
|
1916 return NGX_CONF_OK;
|
|
|
1917 }
|
|
|
1918
|
|
|
1919 if (ngx_http_script_variables_count(&value[2]) == 0) {
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|
|
1920 pr->handler = ngx_http_proxy_rewrite_redirect_text;
|
|
|
1921 pr->redirect = value[1];
|
|
|
1922 pr->replacement.text = value[2];
|
|
|
1923
|
|
|
1924 return NGX_CONF_OK;
|
|
|
1925 }
|
|
|
1926
|
|
|
1927 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t));
|
|
|
1928
|
|
|
1929 vars_lengths = NULL;
|
|
|
1930 vars_values = NULL;
|
|
|
1931
|
|
|
1932 sc.cf = cf;
|
|
|
1933 sc.source = &value[2];
|
|
|
1934 sc.lengths = &vars_lengths;
|
|
|
1935 sc.values = &vars_values;
|
|
|
1936 sc.complete_lengths = 1;
|
|
|
1937 sc.complete_values = 1;
|
|
|
1938
|
|
|
1939 if (ngx_http_script_compile(&sc) != NGX_OK) {
|
|
|
1940 return NGX_CONF_ERROR;
|
|
|
1941 }
|
|
|
1942
|
|
|
1943 pr->handler = ngx_http_proxy_rewrite_redirect_vars;
|
|
|
1944 pr->redirect = value[1];
|
|
|
1945 pr->replacement.vars.lengths = vars_lengths->elts;
|
|
|
1946 pr->replacement.vars.values = vars_values->elts;
|
|
|
1947
|
|
|
1948 return NGX_CONF_OK;
|
|
|
1949 }
|
|
|
1950
|
|
|
1951
|
|
|
1952 static char *
|
|
|
1953 ngx_http_proxy_lowat_check(ngx_conf_t *cf, void *post, void *data)
|
|
|
1954 {
|
|
|
1955 #if (NGX_FREEBSD)
|
|
|
1956 ssize_t *np = data;
|
|
|
1957
|
|
|
1958 if (*np >= ngx_freebsd_net_inet_tcp_sendspace) {
|
|
|
1959 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1960 "\"proxy_send_lowat\" must be less than %d "
|
|
|
1961 "(sysctl net.inet.tcp.sendspace)",
|
|
|
1962 ngx_freebsd_net_inet_tcp_sendspace);
|
|
|
1963
|
|
|
1964 return NGX_CONF_ERROR;
|
|
|
1965 }
|
|
|
1966
|
|
|
1967 #elif !(NGX_HAVE_SO_SNDLOWAT)
|
|
|
1968 ssize_t *np = data;
|
|
|
1969
|
|
|
1970 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
|
|
|
1971 "\"proxy_send_lowat\" is not supported, ignored");
|
|
|
1972
|
|
|
1973 *np = 0;
|
|
|
1974
|
|
|
1975 #endif
|
|
|
1976
|
|
|
1977 return NGX_CONF_OK;
|
|
|
1978 }
|
