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