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1
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126
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2 /*
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58
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3 * Copyright (C) Igor Sysoev
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4 */
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5
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6
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
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9 #include <ngx_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 *flushes;
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126
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41 ngx_array_t *body_set_len;
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42 ngx_array_t *body_set;
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58
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43 ngx_array_t *headers_set_len;
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44 ngx_array_t *headers_set;
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45 ngx_hash_t *headers_set_hash;
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46
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47 ngx_array_t *headers_source;
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48 ngx_array_t *headers_names;
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49
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50 ngx_array_t *redirects;
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51
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52 ngx_str_t body_source;
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53
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54 ngx_str_t method;
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55 ngx_str_t host_header;
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56 ngx_str_t port_text;
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57
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58 ngx_flag_t redirect;
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59 } ngx_http_proxy_loc_conf_t;
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60
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61
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62 typedef struct {
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63 ngx_uint_t status;
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64 ngx_uint_t status_count;
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65 u_char *status_start;
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66 u_char *status_end;
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126
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67
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68 size_t internal_body_length;
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58
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69 } ngx_http_proxy_ctx_t;
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70
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71
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72 #define NGX_HTTP_PROXY_PARSE_NO_HEADER 20
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73
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74
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75 static ngx_int_t ngx_http_proxy_create_request(ngx_http_request_t *r);
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76 static ngx_int_t ngx_http_proxy_reinit_request(ngx_http_request_t *r);
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77 static ngx_int_t ngx_http_proxy_process_status_line(ngx_http_request_t *r);
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78 static ngx_int_t ngx_http_proxy_parse_status_line(ngx_http_request_t *r,
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79 ngx_http_proxy_ctx_t *p);
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80 static ngx_int_t ngx_http_proxy_process_header(ngx_http_request_t *r);
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81 static void ngx_http_proxy_abort_request(ngx_http_request_t *r);
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82 static void ngx_http_proxy_finalize_request(ngx_http_request_t *r,
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83 ngx_int_t rc);
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84
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122
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85 static ngx_int_t ngx_http_proxy_host_variable(ngx_http_request_t *r,
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86 ngx_http_variable_value_t *v, uintptr_t data);
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87 static ngx_int_t ngx_http_proxy_port_variable(ngx_http_request_t *r,
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88 ngx_http_variable_value_t *v, uintptr_t data);
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89 static ngx_int_t
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90 ngx_http_proxy_add_x_forwarded_for_variable(ngx_http_request_t *r,
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91 ngx_http_variable_value_t *v, uintptr_t data);
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126
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92 static ngx_int_t
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93 ngx_http_proxy_internal_body_length_variable(ngx_http_request_t *r,
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94 ngx_http_variable_value_t *v, uintptr_t data);
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95 static ngx_int_t ngx_http_proxy_rewrite_redirect(ngx_http_request_t *r,
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96 ngx_table_elt_t *h, size_t prefix);
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97
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98 static ngx_int_t ngx_http_proxy_add_variables(ngx_conf_t *cf);
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99 static void *ngx_http_proxy_create_loc_conf(ngx_conf_t *cf);
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100 static char *ngx_http_proxy_merge_loc_conf(ngx_conf_t *cf,
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101 void *parent, void *child);
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102
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103 static char *ngx_http_proxy_pass(ngx_conf_t *cf, ngx_command_t *cmd,
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104 void *conf);
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105 static char *ngx_http_proxy_redirect(ngx_conf_t *cf, ngx_command_t *cmd,
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106 void *conf);
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107
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108 static char *ngx_http_proxy_lowat_check(ngx_conf_t *cf, void *post, void *data);
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109
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110
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111 static ngx_conf_post_t ngx_http_proxy_lowat_post =
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112 { ngx_http_proxy_lowat_check };
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113
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114
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115 static ngx_conf_bitmask_t ngx_http_proxy_next_upstream_masks[] = {
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116 { ngx_string("error"), NGX_HTTP_UPSTREAM_FT_ERROR },
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117 { ngx_string("timeout"), NGX_HTTP_UPSTREAM_FT_TIMEOUT },
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118 { ngx_string("invalid_header"), NGX_HTTP_UPSTREAM_FT_INVALID_HEADER },
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119 { ngx_string("http_500"), NGX_HTTP_UPSTREAM_FT_HTTP_500 },
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120 { ngx_string("http_404"), NGX_HTTP_UPSTREAM_FT_HTTP_404 },
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121 { ngx_null_string, 0 }
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122 };
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123
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124
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125 static ngx_command_t ngx_http_proxy_commands[] = {
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126
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127 { ngx_string("proxy_pass"),
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128 NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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129 ngx_http_proxy_pass,
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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_redirect"),
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135 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE12,
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136 ngx_http_proxy_redirect,
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137 NGX_HTTP_LOC_CONF_OFFSET,
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138 0,
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139 NULL },
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140
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141 { ngx_string("proxy_connect_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.connect_timeout),
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146 NULL },
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147
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148 { ngx_string("proxy_send_timeout"),
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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_msec_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_timeout),
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153 NULL },
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154
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155 { ngx_string("proxy_send_lowat"),
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156 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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157 ngx_conf_set_size_slot,
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158 NGX_HTTP_LOC_CONF_OFFSET,
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159 offsetof(ngx_http_proxy_loc_conf_t, upstream.send_lowat),
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160 &ngx_http_proxy_lowat_post },
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161
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162 { ngx_string("proxy_redirect_errors"),
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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.redirect_errors),
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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_set_body"),
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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_str_slot,
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179 NGX_HTTP_LOC_CONF_OFFSET,
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180 offsetof(ngx_http_proxy_loc_conf_t, body_source),
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181 NULL },
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182
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183 { ngx_string("proxy_method"),
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184 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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185 ngx_conf_set_str_slot,
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186 NGX_HTTP_LOC_CONF_OFFSET,
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187 offsetof(ngx_http_proxy_loc_conf_t, method),
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188 NULL },
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189
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190 { ngx_string("proxy_pass_request_headers"),
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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_headers),
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195 NULL },
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196
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197 { ngx_string("proxy_pass_request_body"),
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198 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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199 ngx_conf_set_flag_slot,
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200 NGX_HTTP_LOC_CONF_OFFSET,
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201 offsetof(ngx_http_proxy_loc_conf_t, upstream.pass_request_body),
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202 NULL },
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203
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204 { ngx_string("proxy_header_buffer_size"),
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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_size_slot,
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207 NGX_HTTP_LOC_CONF_OFFSET,
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208 offsetof(ngx_http_proxy_loc_conf_t, upstream.header_buffer_size),
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209 NULL },
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210
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211 { ngx_string("proxy_read_timeout"),
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212 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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213 ngx_conf_set_msec_slot,
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214 NGX_HTTP_LOC_CONF_OFFSET,
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215 offsetof(ngx_http_proxy_loc_conf_t, upstream.read_timeout),
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216 NULL },
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217
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218 { ngx_string("proxy_buffers"),
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219 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2,
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220 ngx_conf_set_bufs_slot,
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221 NGX_HTTP_LOC_CONF_OFFSET,
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222 offsetof(ngx_http_proxy_loc_conf_t, upstream.bufs),
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223 NULL },
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224
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225 { ngx_string("proxy_busy_buffers_size"),
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226 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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227 ngx_conf_set_size_slot,
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228 NGX_HTTP_LOC_CONF_OFFSET,
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229 offsetof(ngx_http_proxy_loc_conf_t, upstream.busy_buffers_size_conf),
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230 NULL },
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231
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232 { ngx_string("proxy_temp_path"),
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233 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1234,
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234 ngx_conf_set_path_slot,
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235 NGX_HTTP_LOC_CONF_OFFSET,
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236 offsetof(ngx_http_proxy_loc_conf_t, upstream.temp_path),
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237 (void *) ngx_garbage_collector_temp_handler },
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238
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239 { ngx_string("proxy_max_temp_file_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.max_temp_file_size_conf),
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244 NULL },
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245
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246 { ngx_string("proxy_temp_file_write_size"),
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247 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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248 ngx_conf_set_size_slot,
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249 NGX_HTTP_LOC_CONF_OFFSET,
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250 offsetof(ngx_http_proxy_loc_conf_t, upstream.temp_file_write_size_conf),
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251 NULL },
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252
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253 { ngx_string("proxy_next_upstream"),
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254 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
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255 ngx_conf_set_bitmask_slot,
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256 NGX_HTTP_LOC_CONF_OFFSET,
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257 offsetof(ngx_http_proxy_loc_conf_t, upstream.next_upstream),
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258 &ngx_http_proxy_next_upstream_masks },
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259
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260 { ngx_string("proxy_upstream_max_fails"),
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261 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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262 ngx_conf_set_num_slot,
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263 NGX_HTTP_LOC_CONF_OFFSET,
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264 offsetof(ngx_http_proxy_loc_conf_t, upstream.max_fails),
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265 NULL },
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266
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267 { ngx_string("proxy_upstream_fail_timeout"),
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268 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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269 ngx_conf_set_sec_slot,
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270 NGX_HTTP_LOC_CONF_OFFSET,
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271 offsetof(ngx_http_proxy_loc_conf_t, upstream.fail_timeout),
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272 NULL },
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273
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274 { ngx_string("proxy_pass_x_powered_by"),
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275 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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276 ngx_conf_set_flag_slot,
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277 NGX_HTTP_LOC_CONF_OFFSET,
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278 offsetof(ngx_http_proxy_loc_conf_t, upstream.pass_x_powered_by),
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279 NULL },
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280
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281 { ngx_string("proxy_pass_server"),
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282 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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283 ngx_conf_set_flag_slot,
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284 NGX_HTTP_LOC_CONF_OFFSET,
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285 offsetof(ngx_http_proxy_loc_conf_t, upstream.pass_server),
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286 NULL },
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287
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288 { ngx_string("proxy_pass_x_accel_expires"),
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289 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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290 ngx_conf_set_flag_slot,
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291 NGX_HTTP_LOC_CONF_OFFSET,
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292 offsetof(ngx_http_proxy_loc_conf_t, upstream.pass_x_accel_expires),
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293 NULL },
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294
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295 ngx_null_command
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296 };
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297
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298
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299 ngx_http_module_t ngx_http_proxy_module_ctx = {
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300 ngx_http_proxy_add_variables, /* preconfiguration */
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301 NULL, /* postconfiguration */
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302
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303 NULL, /* create main configuration */
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304 NULL, /* init main configuration */
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305
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306 NULL, /* create server configuration */
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307 NULL, /* merge server configuration */
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308
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309 ngx_http_proxy_create_loc_conf, /* create location configration */
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310 ngx_http_proxy_merge_loc_conf /* merge location configration */
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311 };
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312
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313
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314 ngx_module_t ngx_http_proxy_module = {
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315 NGX_MODULE_V1,
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316 &ngx_http_proxy_module_ctx, /* module context */
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317 ngx_http_proxy_commands, /* module directives */
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318 NGX_HTTP_MODULE, /* module type */
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319 NULL, /* init master */
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320 NULL, /* init module */
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321 NULL, /* init process */
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322 NULL, /* init thread */
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323 NULL, /* exit thread */
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324 NULL, /* exit process */
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325 NULL, /* exit master */
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326 NGX_MODULE_V1_PADDING
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58
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327 };
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328
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329
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330 static char ngx_http_proxy_version[] = " HTTP/1.0" CRLF;
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331
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332
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333 static ngx_table_elt_t ngx_http_proxy_headers[] = {
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66
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334 { 0, ngx_string("Host"), ngx_string("$proxy_host") },
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335 { 0, ngx_string("Connection"), ngx_string("close") },
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58
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336 { 0, ngx_null_string, ngx_null_string }
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337 };
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338
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339
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340 static ngx_http_variable_t ngx_http_proxy_vars[] = {
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341
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342 { ngx_string("proxy_host"), ngx_http_proxy_host_variable, 0,
|
|
82
|
343 NGX_HTTP_VAR_CHANGABLE, 0 },
|
|
58
|
344
|
|
|
345 { ngx_string("proxy_port"), ngx_http_proxy_port_variable, 0,
|
|
82
|
346 NGX_HTTP_VAR_CHANGABLE, 0 },
|
|
58
|
347
|
|
|
348 { ngx_string("proxy_add_x_forwarded_for"),
|
|
82
|
349 ngx_http_proxy_add_x_forwarded_for_variable, 0, 0, 0 },
|
|
58
|
350
|
|
|
351 #if 0
|
|
82
|
352 { ngx_string("proxy_add_via"), NULL, 0, 0, 0 },
|
|
58
|
353 #endif
|
|
|
354
|
|
126
|
355 { ngx_string("proxy_internal_body_length"),
|
|
|
356 ngx_http_proxy_internal_body_length_variable, 0, 0, 0 },
|
|
|
357
|
|
82
|
358 { ngx_null_string, NULL, 0, 0, 0 }
|
|
58
|
359 };
|
|
|
360
|
|
|
361
|
|
|
362 static ngx_int_t
|
|
|
363 ngx_http_proxy_handler(ngx_http_request_t *r)
|
|
126
|
364 {
|
|
58
|
365 ngx_int_t rc;
|
|
|
366 ngx_http_upstream_t *u;
|
|
|
367 ngx_http_proxy_loc_conf_t *plcf;
|
|
126
|
368
|
|
58
|
369 plcf = ngx_http_get_module_loc_conf(r, ngx_http_proxy_module);
|
|
126
|
370
|
|
58
|
371 u = ngx_pcalloc(r->pool, sizeof(ngx_http_upstream_t));
|
|
|
372 if (u == NULL) {
|
|
|
373 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
374 }
|
|
126
|
375
|
|
58
|
376 u->peer.log = r->connection->log;
|
|
|
377 u->peer.log_error = NGX_ERROR_ERR;
|
|
|
378 u->peer.peers = plcf->peers;
|
|
|
379 u->peer.tries = plcf->peers->number;
|
|
|
380 #if (NGX_THREADS)
|
|
|
381 u->peer.lock = &r->connection->lock;
|
|
|
382 #endif
|
|
|
383
|
|
|
384 u->output.tag = (ngx_buf_tag_t) &ngx_http_proxy_module;
|
|
|
385
|
|
|
386 u->conf = &plcf->upstream;
|
|
|
387
|
|
|
388 u->create_request = ngx_http_proxy_create_request;
|
|
|
389 u->reinit_request = ngx_http_proxy_reinit_request;
|
|
|
390 u->process_header = ngx_http_proxy_process_status_line;
|
|
|
391 u->abort_request = ngx_http_proxy_abort_request;
|
|
|
392 u->finalize_request = ngx_http_proxy_finalize_request;
|
|
|
393
|
|
|
394 if (plcf->redirects) {
|
|
|
395 u->rewrite_redirect = ngx_http_proxy_rewrite_redirect;
|
|
|
396 }
|
|
|
397
|
|
|
398 u->pipe.input_filter = ngx_event_pipe_copy_input_filter;
|
|
|
399
|
|
|
400 u->accel = 1;
|
|
126
|
401
|
|
58
|
402 r->upstream = u;
|
|
|
403
|
|
|
404 rc = ngx_http_read_client_request_body(r, ngx_http_upstream_init);
|
|
|
405
|
|
|
406 if (rc >= NGX_HTTP_SPECIAL_RESPONSE) {
|
|
|
407 return rc;
|
|
|
408 }
|
|
|
409
|
|
|
410 return NGX_DONE;
|
|
|
411 }
|
|
|
412
|
|
|
413
|
|
|
414 static ngx_int_t
|
|
|
415 ngx_http_proxy_create_request(ngx_http_request_t *r)
|
|
|
416 {
|
|
126
|
417 size_t len, loc_len, body_len;
|
|
58
|
418 ngx_uint_t i, key;
|
|
|
419 uintptr_t escape;
|
|
|
420 ngx_buf_t *b;
|
|
110
|
421 ngx_str_t *hh, method;
|
|
58
|
422 ngx_chain_t *cl, *body;
|
|
|
423 ngx_list_part_t *part;
|
|
|
424 ngx_table_elt_t *header;
|
|
|
425 ngx_http_upstream_t *u;
|
|
126
|
426 ngx_http_proxy_ctx_t *p;
|
|
58
|
427 ngx_http_script_code_pt code;
|
|
|
428 ngx_http_script_engine_t e, le;
|
|
|
429 ngx_http_proxy_loc_conf_t *plcf;
|
|
|
430 ngx_http_script_len_code_pt lcode;
|
|
|
431
|
|
|
432 u = r->upstream;
|
|
|
433
|
|
|
434 plcf = ngx_http_get_module_loc_conf(r, ngx_http_proxy_module);
|
|
|
435
|
|
126
|
436 p = ngx_pcalloc(r->pool, sizeof(ngx_http_proxy_ctx_t));
|
|
|
437 if (p == NULL) {
|
|
|
438 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
439 }
|
|
|
440
|
|
|
441 ngx_http_set_ctx(r, p, ngx_http_proxy_module);
|
|
|
442
|
|
58
|
443 len = sizeof(ngx_http_proxy_version) - 1 + sizeof(CRLF) - 1;
|
|
|
444
|
|
110
|
445 if (u->method.len) {
|
|
|
446 /* HEAD was changed to GET to cache response */
|
|
|
447 method = u->method;
|
|
|
448 method.len++;
|
|
|
449
|
|
|
450 } else if (plcf->method.len) {
|
|
|
451 method = plcf->method;
|
|
|
452
|
|
58
|
453 } else {
|
|
110
|
454 method = r->method_name;
|
|
|
455 method.len++;
|
|
58
|
456 }
|
|
|
457
|
|
110
|
458 len += method.len + u->conf->uri.len;
|
|
|
459
|
|
58
|
460 escape = 0;
|
|
|
461
|
|
122
|
462 loc_len = r->valid_location ? u->conf->location.len : 0;
|
|
58
|
463
|
|
104
|
464 if (u->conf->uri.len == 0 && r->valid_unparsed_uri) {
|
|
88
|
465 len += r->unparsed_uri.len;
|
|
58
|
466
|
|
|
467 } else {
|
|
|
468 if (r->quoted_uri) {
|
|
|
469 escape = 2 * ngx_escape_uri(NULL, r->uri.data + loc_len,
|
|
|
470 r->uri.len - loc_len, NGX_ESCAPE_URI);
|
|
|
471 }
|
|
|
472
|
|
|
473 len += r->uri.len - loc_len + escape + sizeof("?") - 1 + r->args.len;
|
|
|
474 }
|
|
|
475
|
|
122
|
476 ngx_http_script_flush_no_cachable_variables(r, plcf->flushes);
|
|
|
477
|
|
126
|
478 if (plcf->body_set_len) {
|
|
|
479 le.ip = plcf->body_set_len->elts;
|
|
|
480 le.request = r;
|
|
|
481 le.flushed = 1;
|
|
|
482 body_len = 0;
|
|
|
483
|
|
|
484 while (*(uintptr_t *) le.ip) {
|
|
|
485 lcode = *(ngx_http_script_len_code_pt *) le.ip;
|
|
|
486 body_len += lcode(&le);
|
|
|
487 }
|
|
|
488
|
|
|
489 p->internal_body_length = body_len;
|
|
|
490 len += body_len;
|
|
|
491 }
|
|
|
492
|
|
58
|
493 le.ip = plcf->headers_set_len->elts;
|
|
|
494 le.request = r;
|
|
122
|
495 le.flushed = 1;
|
|
58
|
496
|
|
|
497 while (*(uintptr_t *) le.ip) {
|
|
|
498 while (*(uintptr_t *) le.ip) {
|
|
|
499 lcode = *(ngx_http_script_len_code_pt *) le.ip;
|
|
|
500 len += lcode(&le);
|
|
|
501 }
|
|
|
502 le.ip += sizeof(uintptr_t);
|
|
|
503 }
|
|
|
504
|
|
|
505
|
|
|
506 hh = (ngx_str_t *) plcf->headers_set_hash->buckets;
|
|
|
507
|
|
|
508 if (plcf->upstream.pass_request_headers) {
|
|
|
509 part = &r->headers_in.headers.part;
|
|
|
510 header = part->elts;
|
|
|
511
|
|
|
512 for (i = 0; /* void */; i++) {
|
|
|
513
|
|
|
514 if (i >= part->nelts) {
|
|
|
515 if (part->next == NULL) {
|
|
|
516 break;
|
|
|
517 }
|
|
|
518
|
|
|
519 part = part->next;
|
|
|
520 header = part->elts;
|
|
126
|
521 i = 0;
|
|
58
|
522 }
|
|
|
523
|
|
|
524 key = header[i].hash % plcf->headers_set_hash->hash_size;
|
|
|
525
|
|
|
526 if (hh[key].len == header[i].key.len
|
|
|
527 && ngx_strcasecmp(hh[key].data, header[i].key.data) == 0)
|
|
|
528 {
|
|
|
529 continue;
|
|
|
530 }
|
|
|
531
|
|
|
532 len += header[i].key.len + sizeof(": ") - 1
|
|
|
533 + header[i].value.len + sizeof(CRLF) - 1;
|
|
|
534 }
|
|
|
535 }
|
|
|
536
|
|
|
537
|
|
|
538 b = ngx_create_temp_buf(r->pool, len);
|
|
|
539 if (b == NULL) {
|
|
|
540 return NGX_ERROR;
|
|
|
541 }
|
|
|
542
|
|
|
543 cl = ngx_alloc_chain_link(r->pool);
|
|
|
544 if (cl == NULL) {
|
|
|
545 return NGX_ERROR;
|
|
|
546 }
|
|
|
547
|
|
|
548 cl->buf = b;
|
|
|
549
|
|
|
550
|
|
|
551 /* the request line */
|
|
|
552
|
|
122
|
553 b->last = ngx_copy(b->last, method.data, method.len);
|
|
58
|
554
|
|
104
|
555 u->uri.data = b->last;
|
|
|
556
|
|
|
557 if (u->conf->uri.len == 0 && r->valid_unparsed_uri) {
|
|
122
|
558 b->last = ngx_copy(b->last, r->unparsed_uri.data, r->unparsed_uri.len);
|
|
|
559
|
|
58
|
560 } else {
|
|
104
|
561 if (r->valid_location) {
|
|
122
|
562 b->last = ngx_copy(b->last, u->conf->uri.data, u->conf->uri.len);
|
|
104
|
563 }
|
|
100
|
564
|
|
58
|
565 if (escape) {
|
|
|
566 ngx_escape_uri(b->last, r->uri.data + loc_len,
|
|
|
567 r->uri.len - loc_len, NGX_ESCAPE_URI);
|
|
|
568 b->last += r->uri.len - loc_len + escape;
|
|
|
569
|
|
126
|
570 } else {
|
|
122
|
571 b->last = ngx_copy(b->last, r->uri.data + loc_len,
|
|
|
572 r->uri.len - loc_len);
|
|
58
|
573 }
|
|
|
574
|
|
|
575 if (r->args.len > 0) {
|
|
|
576 *b->last++ = '?';
|
|
122
|
577 b->last = ngx_copy(b->last, r->args.data, r->args.len);
|
|
58
|
578 }
|
|
|
579 }
|
|
|
580
|
|
104
|
581 u->uri.len = b->last - u->uri.data;
|
|
|
582
|
|
58
|
583 b->last = ngx_cpymem(b->last, ngx_http_proxy_version,
|
|
|
584 sizeof(ngx_http_proxy_version) - 1);
|
|
|
585
|
|
126
|
586 ngx_memzero(&e, sizeof(ngx_http_script_engine_t));
|
|
58
|
587
|
|
|
588 e.ip = plcf->headers_set->elts;
|
|
|
589 e.pos = b->last;
|
|
|
590 e.request = r;
|
|
122
|
591 e.flushed = 1;
|
|
58
|
592
|
|
|
593 le.ip = plcf->headers_set_len->elts;
|
|
|
594
|
|
|
595 while (*(uintptr_t *) le.ip) {
|
|
|
596 lcode = *(ngx_http_script_len_code_pt *) le.ip;
|
|
64
|
597
|
|
|
598 /* skip the header line name length */
|
|
|
599 (void) lcode(&le);
|
|
58
|
600
|
|
|
601 if (*(ngx_http_script_len_code_pt *) le.ip) {
|
|
|
602
|
|
|
603 for (len = 0; *(uintptr_t *) le.ip; len += lcode(&le)) {
|
|
|
604 lcode = *(ngx_http_script_len_code_pt *) le.ip;
|
|
|
605 }
|
|
|
606
|
|
|
607 e.skip = (len == sizeof(CRLF) - 1) ? 1 : 0;
|
|
|
608
|
|
|
609 } else {
|
|
|
610 e.skip = 0;
|
|
|
611 }
|
|
|
612
|
|
|
613 le.ip += sizeof(uintptr_t);
|
|
|
614
|
|
|
615 while (*(uintptr_t *) e.ip) {
|
|
|
616 code = *(ngx_http_script_code_pt *) e.ip;
|
|
|
617 code((ngx_http_script_engine_t *) &e);
|
|
126
|
618 }
|
|
58
|
619 e.ip += sizeof(uintptr_t);
|
|
|
620 }
|
|
|
621
|
|
|
622 b->last = e.pos;
|
|
|
623
|
|
|
624
|
|
|
625 if (plcf->upstream.pass_request_headers) {
|
|
|
626 part = &r->headers_in.headers.part;
|
|
|
627 header = part->elts;
|
|
126
|
628
|
|
58
|
629 for (i = 0; /* void */; i++) {
|
|
|
630
|
|
|
631 if (i >= part->nelts) {
|
|
|
632 if (part->next == NULL) {
|
|
|
633 break;
|
|
|
634 }
|
|
|
635
|
|
|
636 part = part->next;
|
|
|
637 header = part->elts;
|
|
126
|
638 i = 0;
|
|
58
|
639 }
|
|
|
640
|
|
|
641 key = header[i].hash % plcf->headers_set_hash->hash_size;
|
|
|
642
|
|
|
643 if (hh[key].len == header[i].key.len
|
|
|
644 && ngx_strcasecmp(hh[key].data, header[i].key.data) == 0)
|
|
|
645 {
|
|
|
646 continue;
|
|
|
647 }
|
|
|
648
|
|
122
|
649 b->last = ngx_copy(b->last, header[i].key.data, header[i].key.len);
|
|
58
|
650
|
|
|
651 *b->last++ = ':'; *b->last++ = ' ';
|
|
|
652
|
|
122
|
653 b->last = ngx_copy(b->last, header[i].value.data,
|
|
|
654 header[i].value.len);
|
|
58
|
655
|
|
|
656 *b->last++ = CR; *b->last++ = LF;
|
|
|
657
|
|
|
658 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
659 "http proxy header: \"%V: %V\"",
|
|
|
660 &header[i].key, &header[i].value);
|
|
|
661 }
|
|
|
662 }
|
|
|
663
|
|
126
|
664
|
|
58
|
665 /* add "\r\n" at the header end */
|
|
|
666 *b->last++ = CR; *b->last++ = LF;
|
|
|
667
|
|
126
|
668 if (plcf->body_set) {
|
|
|
669 e.ip = plcf->body_set->elts;
|
|
|
670 e.pos = b->last;
|
|
|
671
|
|
|
672 while (*(uintptr_t *) e.ip) {
|
|
|
673 code = *(ngx_http_script_code_pt *) e.ip;
|
|
|
674 code((ngx_http_script_engine_t *) &e);
|
|
|
675 }
|
|
128
|
676
|
|
|
677 b->last = e.pos;
|
|
126
|
678 }
|
|
|
679
|
|
58
|
680 #if (NGX_DEBUG)
|
|
|
681 {
|
|
|
682 ngx_str_t s;
|
|
|
683
|
|
|
684 s.len = b->last - b->pos;
|
|
|
685 s.data = b->pos;
|
|
|
686 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
687 "http proxy header:\n\"%V\"", &s);
|
|
|
688 }
|
|
|
689 #endif
|
|
|
690
|
|
126
|
691 if (plcf->body_set == NULL && plcf->upstream.pass_request_body) {
|
|
58
|
692
|
|
|
693 body = u->request_bufs;
|
|
|
694 u->request_bufs = cl;
|
|
|
695
|
|
|
696 while (body) {
|
|
|
697 b = ngx_alloc_buf(r->pool);
|
|
|
698 if (b == NULL) {
|
|
|
699 return NGX_ERROR;
|
|
|
700 }
|
|
|
701
|
|
|
702 ngx_memcpy(b, body->buf, sizeof(ngx_buf_t));
|
|
|
703
|
|
|
704 cl->next = ngx_alloc_chain_link(r->pool);
|
|
|
705 if (cl->next == NULL) {
|
|
|
706 return NGX_ERROR;
|
|
|
707 }
|
|
|
708
|
|
|
709 cl = cl->next;
|
|
|
710 cl->buf = b;
|
|
|
711
|
|
|
712 body = body->next;
|
|
|
713 }
|
|
|
714
|
|
|
715 } else {
|
|
|
716 u->request_bufs = cl;
|
|
|
717 }
|
|
|
718
|
|
|
719 cl->next = NULL;
|
|
|
720
|
|
|
721 return NGX_OK;
|
|
|
722 }
|
|
|
723
|
|
|
724
|
|
|
725 static ngx_int_t
|
|
|
726 ngx_http_proxy_reinit_request(ngx_http_request_t *r)
|
|
|
727 {
|
|
|
728 ngx_http_proxy_ctx_t *p;
|
|
|
729
|
|
|
730 p = ngx_http_get_module_ctx(r, ngx_http_proxy_module);
|
|
|
731
|
|
|
732 if (p == NULL) {
|
|
|
733 return NGX_OK;
|
|
|
734 }
|
|
|
735
|
|
|
736 p->status = 0;
|
|
|
737 p->status_count = 0;
|
|
|
738 p->status_start = NULL;
|
|
|
739 p->status_end = NULL;
|
|
|
740
|
|
|
741 r->upstream->process_header = ngx_http_proxy_process_status_line;
|
|
|
742
|
|
|
743 return NGX_OK;
|
|
|
744 }
|
|
|
745
|
|
|
746
|
|
|
747 static ngx_int_t
|
|
|
748 ngx_http_proxy_process_status_line(ngx_http_request_t *r)
|
|
|
749 {
|
|
|
750 ngx_int_t rc;
|
|
|
751 ngx_http_upstream_t *u;
|
|
|
752 ngx_http_proxy_ctx_t *p;
|
|
|
753
|
|
|
754 p = ngx_http_get_module_ctx(r, ngx_http_proxy_module);
|
|
|
755
|
|
|
756 if (p == NULL) {
|
|
126
|
757 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
58
|
758 }
|
|
|
759
|
|
|
760 rc = ngx_http_proxy_parse_status_line(r, p);
|
|
|
761
|
|
|
762 if (rc == NGX_AGAIN) {
|
|
|
763 return rc;
|
|
|
764 }
|
|
|
765
|
|
|
766 u = r->upstream;
|
|
|
767
|
|
|
768 if (rc == NGX_HTTP_PROXY_PARSE_NO_HEADER) {
|
|
|
769 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
126
|
770 "upstream sent no valid HTTP/1.0 header");
|
|
58
|
771
|
|
|
772 if (u->accel) {
|
|
|
773 return NGX_HTTP_UPSTREAM_INVALID_HEADER;
|
|
|
774 }
|
|
|
775
|
|
|
776 r->http_version = NGX_HTTP_VERSION_9;
|
|
|
777 p->status = NGX_HTTP_OK;
|
|
126
|
778
|
|
58
|
779 return NGX_OK;
|
|
|
780 }
|
|
|
781
|
|
78
|
782 u->headers_in.status_n = p->status;
|
|
58
|
783 u->state->status = p->status;
|
|
|
784
|
|
78
|
785 u->headers_in.status_line.len = p->status_end - p->status_start;
|
|
|
786 u->headers_in.status_line.data = ngx_palloc(r->pool,
|
|
|
787 u->headers_in.status_line.len);
|
|
|
788 if (u->headers_in.status_line.data == NULL) {
|
|
58
|
789 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
790 }
|
|
122
|
791
|
|
78
|
792 ngx_memcpy(u->headers_in.status_line.data, p->status_start,
|
|
|
793 u->headers_in.status_line.len);
|
|
58
|
794
|
|
|
795 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
796 "http proxy status %ui \"%V\"",
|
|
78
|
797 u->headers_in.status, &u->headers_in.status_line);
|
|
58
|
798
|
|
|
799 u->process_header = ngx_http_proxy_process_header;
|
|
|
800
|
|
|
801 return ngx_http_proxy_process_header(r);
|
|
|
802 }
|
|
|
803
|
|
|
804
|
|
|
805 static ngx_int_t
|
|
|
806 ngx_http_proxy_parse_status_line(ngx_http_request_t *r, ngx_http_proxy_ctx_t *p)
|
|
|
807 {
|
|
|
808 u_char ch;
|
|
|
809 u_char *pos;
|
|
|
810 ngx_http_upstream_t *u;
|
|
|
811 enum {
|
|
|
812 sw_start = 0,
|
|
|
813 sw_H,
|
|
|
814 sw_HT,
|
|
|
815 sw_HTT,
|
|
|
816 sw_HTTP,
|
|
|
817 sw_first_major_digit,
|
|
|
818 sw_major_digit,
|
|
|
819 sw_first_minor_digit,
|
|
|
820 sw_minor_digit,
|
|
|
821 sw_status,
|
|
|
822 sw_space_after_status,
|
|
|
823 sw_status_text,
|
|
|
824 sw_almost_done
|
|
126
|
825 } state;
|
|
58
|
826
|
|
|
827 u = r->upstream;
|
|
|
828
|
|
|
829 state = r->state;
|
|
|
830
|
|
|
831 for (pos = u->header_in.pos; pos < u->header_in.last; pos++) {
|
|
|
832 ch = *pos;
|
|
|
833
|
|
|
834 switch (state) {
|
|
|
835
|
|
|
836 /* "HTTP/" */
|
|
|
837 case sw_start:
|
|
|
838 switch (ch) {
|
|
126
|
839 case 'H':
|
|
58
|
840 state = sw_H;
|
|
|
841 break;
|
|
|
842 default:
|
|
|
843 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
|
844 }
|
|
|
845 break;
|
|
|
846
|
|
126
|
847 case sw_H:
|
|
58
|
848 switch (ch) {
|
|
126
|
849 case 'T':
|
|
58
|
850 state = sw_HT;
|
|
|
851 break;
|
|
|
852 default:
|
|
|
853 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
|
854 }
|
|
|
855 break;
|
|
|
856
|
|
|
857 case sw_HT:
|
|
|
858 switch (ch) {
|
|
126
|
859 case 'T':
|
|
58
|
860 state = sw_HTT;
|
|
|
861 break;
|
|
|
862 default:
|
|
|
863 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
|
864 }
|
|
|
865 break;
|
|
|
866
|
|
|
867 case sw_HTT:
|
|
|
868 switch (ch) {
|
|
126
|
869 case 'P':
|
|
58
|
870 state = sw_HTTP;
|
|
|
871 break;
|
|
|
872 default:
|
|
|
873 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
|
874 }
|
|
|
875 break;
|
|
|
876
|
|
|
877 case sw_HTTP:
|
|
|
878 switch (ch) {
|
|
126
|
879 case '/':
|
|
58
|
880 state = sw_first_major_digit;
|
|
|
881 break;
|
|
|
882 default:
|
|
|
883 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
|
884 }
|
|
|
885 break;
|
|
|
886
|
|
|
887 /* the first digit of major HTTP version */
|
|
|
888 case sw_first_major_digit:
|
|
|
889 if (ch < '1' || ch > '9') {
|
|
|
890 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
|
891 }
|
|
|
892
|
|
|
893 state = sw_major_digit;
|
|
|
894 break;
|
|
|
895
|
|
|
896 /* the major HTTP version or dot */
|
|
|
897 case sw_major_digit:
|
|
|
898 if (ch == '.') {
|
|
|
899 state = sw_first_minor_digit;
|
|
|
900 break;
|
|
|
901 }
|
|
|
902
|
|
|
903 if (ch < '0' || ch > '9') {
|
|
|
904 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
|
905 }
|
|
|
906
|
|
|
907 break;
|
|
|
908
|
|
|
909 /* the first digit of minor HTTP version */
|
|
|
910 case sw_first_minor_digit:
|
|
|
911 if (ch < '0' || ch > '9') {
|
|
|
912 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
|
913 }
|
|
|
914
|
|
|
915 state = sw_minor_digit;
|
|
|
916 break;
|
|
|
917
|
|
|
918 /* the minor HTTP version or the end of the request line */
|
|
|
919 case sw_minor_digit:
|
|
|
920 if (ch == ' ') {
|
|
|
921 state = sw_status;
|
|
|
922 break;
|
|
|
923 }
|
|
|
924
|
|
|
925 if (ch < '0' || ch > '9') {
|
|
|
926 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
|
927 }
|
|
|
928
|
|
|
929 break;
|
|
|
930
|
|
|
931 /* HTTP status code */
|
|
|
932 case sw_status:
|
|
|
933 if (ch < '0' || ch > '9') {
|
|
|
934 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
|
935 }
|
|
|
936
|
|
|
937 p->status = p->status * 10 + ch - '0';
|
|
|
938
|
|
|
939 if (++p->status_count == 3) {
|
|
|
940 state = sw_space_after_status;
|
|
|
941 p->status_start = pos - 2;
|
|
|
942 }
|
|
|
943
|
|
|
944 break;
|
|
|
945
|
|
|
946 /* space or end of line */
|
|
|
947 case sw_space_after_status:
|
|
|
948 switch (ch) {
|
|
126
|
949 case ' ':
|
|
58
|
950 state = sw_status_text;
|
|
|
951 break;
|
|
|
952 case '.': /* IIS may send 403.1, 403.2, etc */
|
|
|
953 state = sw_status_text;
|
|
|
954 break;
|
|
|
955 case CR:
|
|
|
956 state = sw_almost_done;
|
|
|
957 break;
|
|
|
958 case LF:
|
|
|
959 goto done;
|
|
|
960 default:
|
|
|
961 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
|
962 }
|
|
|
963 break;
|
|
|
964
|
|
|
965 /* any text until end of line */
|
|
|
966 case sw_status_text:
|
|
|
967 switch (ch) {
|
|
|
968 case CR:
|
|
|
969 state = sw_almost_done;
|
|
|
970
|
|
|
971 break;
|
|
|
972 case LF:
|
|
|
973 goto done;
|
|
|
974 }
|
|
|
975 break;
|
|
|
976
|
|
76
|
977 /* end of status line */
|
|
58
|
978 case sw_almost_done:
|
|
|
979 p->status_end = pos - 1;
|
|
|
980 switch (ch) {
|
|
|
981 case LF:
|
|
|
982 goto done;
|
|
|
983 default:
|
|
|
984 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
|
985 }
|
|
|
986 }
|
|
|
987 }
|
|
|
988
|
|
76
|
989 u->header_in.pos = pos;
|
|
58
|
990 r->state = state;
|
|
|
991
|
|
|
992 return NGX_AGAIN;
|
|
|
993
|
|
|
994 done:
|
|
|
995
|
|
|
996 u->header_in.pos = pos + 1;
|
|
|
997
|
|
|
998 if (p->status_end == NULL) {
|
|
|
999 p->status_end = pos;
|
|
|
1000 }
|
|
|
1001
|
|
|
1002 r->state = sw_start;
|
|
|
1003
|
|
|
1004 return NGX_OK;
|
|
|
1005 }
|
|
|
1006
|
|
|
1007
|
|
|
1008 static ngx_int_t
|
|
|
1009 ngx_http_proxy_process_header(ngx_http_request_t *r)
|
|
|
1010 {
|
|
|
1011 ngx_int_t rc;
|
|
|
1012 ngx_uint_t key;
|
|
|
1013 ngx_table_elt_t *h;
|
|
|
1014 ngx_http_upstream_header_t *hh;
|
|
|
1015 ngx_http_upstream_main_conf_t *umcf;
|
|
|
1016
|
|
|
1017 umcf = ngx_http_get_module_main_conf(r, ngx_http_upstream_module);
|
|
|
1018 hh = (ngx_http_upstream_header_t *) umcf->headers_in_hash.buckets;
|
|
|
1019
|
|
|
1020 for ( ;; ) {
|
|
|
1021
|
|
|
1022 rc = ngx_http_parse_header_line(r, &r->upstream->header_in);
|
|
|
1023
|
|
|
1024 if (rc == NGX_OK) {
|
|
|
1025
|
|
|
1026 /* a header line has been parsed successfully */
|
|
|
1027
|
|
|
1028 h = ngx_list_push(&r->upstream->headers_in.headers);
|
|
|
1029 if (h == NULL) {
|
|
|
1030 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
1031 }
|
|
|
1032
|
|
|
1033 h->hash = r->header_hash;
|
|
|
1034
|
|
|
1035 h->key.len = r->header_name_end - r->header_name_start;
|
|
|
1036 h->value.len = r->header_end - r->header_start;
|
|
|
1037
|
|
|
1038 h->key.data = ngx_palloc(r->pool,
|
|
|
1039 h->key.len + 1 + h->value.len + 1);
|
|
|
1040 if (h->key.data == NULL) {
|
|
|
1041 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
1042 }
|
|
|
1043
|
|
|
1044 h->value.data = h->key.data + h->key.len + 1;
|
|
|
1045
|
|
|
1046 ngx_cpystrn(h->key.data, r->header_name_start, h->key.len + 1);
|
|
|
1047 ngx_cpystrn(h->value.data, r->header_start, h->value.len + 1);
|
|
|
1048
|
|
|
1049 key = h->hash % umcf->headers_in_hash.hash_size;
|
|
|
1050
|
|
|
1051 if (hh[key].name.len == h->key.len
|
|
|
1052 && ngx_strcasecmp(hh[key].name.data, h->key.data) == 0)
|
|
|
1053 {
|
|
|
1054 if (hh[key].handler(r, h, hh[key].offset) != NGX_OK) {
|
|
|
1055 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
1056 }
|
|
|
1057 }
|
|
|
1058
|
|
|
1059 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1060 "http proxy header: \"%V: %V\"",
|
|
|
1061 &h->key, &h->value);
|
|
|
1062
|
|
|
1063 continue;
|
|
|
1064 }
|
|
|
1065
|
|
|
1066 if (rc == NGX_HTTP_PARSE_HEADER_DONE) {
|
|
|
1067
|
|
|
1068 /* a whole header has been parsed successfully */
|
|
|
1069
|
|
|
1070 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1071 "http proxy header done");
|
|
|
1072
|
|
|
1073 return NGX_OK;
|
|
|
1074 }
|
|
|
1075
|
|
70
|
1076 if (rc == NGX_AGAIN) {
|
|
|
1077 return NGX_AGAIN;
|
|
|
1078 }
|
|
|
1079
|
|
58
|
1080 /* there was error while a header line parsing */
|
|
|
1081
|
|
|
1082 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
1083 ngx_http_upstream_header_errors[rc
|
|
|
1084 - NGX_HTTP_PARSE_HEADER_ERROR]);
|
|
|
1085
|
|
|
1086 return NGX_HTTP_UPSTREAM_INVALID_HEADER;
|
|
|
1087 }
|
|
|
1088 }
|
|
|
1089
|
|
|
1090
|
|
|
1091 static void
|
|
|
1092 ngx_http_proxy_abort_request(ngx_http_request_t *r)
|
|
|
1093 {
|
|
|
1094 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1095 "abort http proxy request");
|
|
126
|
1096
|
|
58
|
1097 return;
|
|
|
1098 }
|
|
|
1099
|
|
|
1100
|
|
|
1101 static void
|
|
|
1102 ngx_http_proxy_finalize_request(ngx_http_request_t *r, ngx_int_t rc)
|
|
126
|
1103 {
|
|
58
|
1104 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1105 "finalize http proxy request");
|
|
|
1106
|
|
|
1107 return;
|
|
|
1108 }
|
|
|
1109
|
|
|
1110
|
|
122
|
1111 static ngx_int_t
|
|
|
1112 ngx_http_proxy_host_variable(ngx_http_request_t *r,
|
|
|
1113 ngx_http_variable_value_t *v, uintptr_t data)
|
|
58
|
1114 {
|
|
|
1115 ngx_http_proxy_loc_conf_t *plcf;
|
|
|
1116
|
|
|
1117 plcf = ngx_http_get_module_loc_conf(r, ngx_http_proxy_module);
|
|
|
1118
|
|
122
|
1119 v->len = plcf->host_header.len;
|
|
126
|
1120 v->valid = 1;
|
|
122
|
1121 v->no_cachable = 0;
|
|
|
1122 v->not_found = 0;
|
|
|
1123 v->data = plcf->host_header.data;
|
|
58
|
1124
|
|
122
|
1125 return NGX_OK;
|
|
58
|
1126 }
|
|
|
1127
|
|
|
1128
|
|
122
|
1129 static ngx_int_t
|
|
|
1130 ngx_http_proxy_port_variable(ngx_http_request_t *r,
|
|
|
1131 ngx_http_variable_value_t *v, uintptr_t data)
|
|
58
|
1132 {
|
|
|
1133 ngx_http_proxy_loc_conf_t *plcf;
|
|
|
1134
|
|
|
1135 plcf = ngx_http_get_module_loc_conf(r, ngx_http_proxy_module);
|
|
|
1136
|
|
122
|
1137 v->len = plcf->port_text.len;
|
|
126
|
1138 v->valid = 1;
|
|
122
|
1139 v->no_cachable = 0;
|
|
|
1140 v->not_found = 0;
|
|
|
1141 v->data = plcf->port_text.data;
|
|
58
|
1142
|
|
122
|
1143 return NGX_OK;
|
|
58
|
1144 }
|
|
|
1145
|
|
|
1146
|
|
122
|
1147 static ngx_int_t
|
|
58
|
1148 ngx_http_proxy_add_x_forwarded_for_variable(ngx_http_request_t *r,
|
|
122
|
1149 ngx_http_variable_value_t *v, uintptr_t data)
|
|
58
|
1150 {
|
|
122
|
1151 u_char *p;
|
|
58
|
1152
|
|
126
|
1153 v->valid = 1;
|
|
122
|
1154 v->no_cachable = 0;
|
|
|
1155 v->not_found = 0;
|
|
58
|
1156
|
|
|
1157 if (r->headers_in.x_forwarded_for == NULL) {
|
|
122
|
1158 v->len = r->connection->addr_text.len;
|
|
|
1159 v->data = r->connection->addr_text.data;
|
|
|
1160 return NGX_OK;
|
|
58
|
1161 }
|
|
|
1162
|
|
122
|
1163 v->len = r->headers_in.x_forwarded_for->value.len
|
|
|
1164 + sizeof(", ") - 1 + r->connection->addr_text.len;
|
|
58
|
1165
|
|
122
|
1166 p = ngx_palloc(r->pool, v->len);
|
|
58
|
1167 if (p == NULL) {
|
|
122
|
1168 return NGX_ERROR;
|
|
58
|
1169 }
|
|
|
1170
|
|
122
|
1171 v->data = p;
|
|
58
|
1172
|
|
122
|
1173 p = ngx_copy(p, r->headers_in.x_forwarded_for->value.data,
|
|
|
1174 r->headers_in.x_forwarded_for->value.len);
|
|
58
|
1175
|
|
|
1176 *p++ = ','; *p++ = ' ';
|
|
|
1177
|
|
|
1178 ngx_memcpy(p, r->connection->addr_text.data, r->connection->addr_text.len);
|
|
|
1179
|
|
122
|
1180 return NGX_OK;
|
|
58
|
1181 }
|
|
|
1182
|
|
|
1183
|
|
|
1184 static ngx_int_t
|
|
126
|
1185 ngx_http_proxy_internal_body_length_variable(ngx_http_request_t *r,
|
|
|
1186 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
1187 {
|
|
|
1188 ngx_http_proxy_ctx_t *p;
|
|
|
1189
|
|
|
1190 p = ngx_http_get_module_ctx(r, ngx_http_proxy_module);
|
|
|
1191
|
|
|
1192 if (p == NULL) {
|
|
|
1193 v->not_found = 1;
|
|
|
1194 return NGX_OK;
|
|
|
1195 }
|
|
|
1196
|
|
|
1197 v->valid = 1;
|
|
|
1198 v->no_cachable = 0;
|
|
|
1199 v->not_found = 0;
|
|
|
1200
|
|
|
1201 v->data = ngx_palloc(r->connection->pool, NGX_SIZE_T_LEN);
|
|
|
1202
|
|
|
1203 if (v->data == NULL) {
|
|
|
1204 return NGX_ERROR;
|
|
|
1205 }
|
|
|
1206
|
|
|
1207 v->len = ngx_sprintf(v->data, "%uz", p->internal_body_length) - v->data;
|
|
|
1208
|
|
|
1209 return NGX_OK;
|
|
|
1210 }
|
|
|
1211
|
|
|
1212
|
|
|
1213 static ngx_int_t
|
|
58
|
1214 ngx_http_proxy_rewrite_redirect(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1215 size_t prefix)
|
|
|
1216 {
|
|
|
1217 ngx_int_t rc;
|
|
|
1218 ngx_uint_t i;
|
|
|
1219 ngx_http_proxy_loc_conf_t *plcf;
|
|
|
1220 ngx_http_proxy_redirect_t *pr;
|
|
|
1221
|
|
|
1222 plcf = ngx_http_get_module_loc_conf(r, ngx_http_proxy_module);
|
|
|
1223
|
|
|
1224 pr = plcf->redirects->elts;
|
|
|
1225
|
|
|
1226 if (pr == NULL) {
|
|
|
1227 return NGX_DECLINED;
|
|
|
1228 }
|
|
|
1229
|
|
|
1230 for (i = 0; i < plcf->redirects->nelts; i++) {
|
|
|
1231 rc = pr->handler(r, h, prefix, pr);
|
|
|
1232
|
|
|
1233 if (rc != NGX_DECLINED) {
|
|
|
1234 return rc;
|
|
|
1235 }
|
|
|
1236 }
|
|
|
1237
|
|
|
1238 return NGX_DECLINED;
|
|
|
1239 }
|
|
|
1240
|
|
|
1241
|
|
|
1242 static ngx_int_t
|
|
|
1243 ngx_http_proxy_rewrite_redirect_text(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1244 size_t prefix, ngx_http_proxy_redirect_t *pr)
|
|
|
1245 {
|
|
|
1246 size_t len;
|
|
|
1247 u_char *data, *p;
|
|
|
1248
|
|
|
1249 if (pr->redirect.len > h->value.len - prefix
|
|
|
1250 || ngx_rstrncmp(h->value.data + prefix, pr->redirect.data,
|
|
|
1251 pr->redirect.len) != 0)
|
|
|
1252 {
|
|
|
1253 return NGX_DECLINED;
|
|
|
1254 }
|
|
|
1255
|
|
|
1256 len = prefix + pr->replacement.text.len + h->value.len - pr->redirect.len;
|
|
|
1257
|
|
|
1258 data = ngx_palloc(r->pool, len);
|
|
|
1259 if (data == NULL) {
|
|
|
1260 return NGX_ERROR;
|
|
|
1261 }
|
|
|
1262
|
|
|
1263 p = data;
|
|
|
1264
|
|
122
|
1265 p = ngx_copy(p, h->value.data, prefix);
|
|
58
|
1266
|
|
122
|
1267 p = ngx_copy(p, pr->replacement.text.data, pr->replacement.text.len);
|
|
58
|
1268
|
|
|
1269 ngx_memcpy(p, h->value.data + prefix + pr->redirect.len,
|
|
|
1270 h->value.len - pr->redirect.len - prefix);
|
|
|
1271
|
|
|
1272 h->value.len = len;
|
|
|
1273 h->value.data = data;
|
|
|
1274
|
|
|
1275 return NGX_OK;
|
|
|
1276 }
|
|
|
1277
|
|
|
1278
|
|
|
1279 static ngx_int_t
|
|
|
1280 ngx_http_proxy_rewrite_redirect_vars(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1281 size_t prefix, ngx_http_proxy_redirect_t *pr)
|
|
|
1282 {
|
|
|
1283 size_t len;
|
|
|
1284 u_char *data, *p;
|
|
|
1285 ngx_http_script_code_pt code;
|
|
|
1286 ngx_http_script_engine_t e;
|
|
|
1287 ngx_http_script_len_code_pt lcode;
|
|
|
1288
|
|
|
1289 if (pr->redirect.len > h->value.len - prefix
|
|
|
1290 || ngx_rstrncmp(h->value.data + prefix, pr->redirect.data,
|
|
|
1291 pr->redirect.len) != 0)
|
|
|
1292 {
|
|
|
1293 return NGX_DECLINED;
|
|
|
1294 }
|
|
|
1295
|
|
|
1296 ngx_memzero(&e, sizeof(ngx_http_script_engine_t));
|
|
|
1297
|
|
|
1298 e.ip = pr->replacement.vars.lengths;
|
|
|
1299 e.request = r;
|
|
|
1300
|
|
|
1301 for (len = prefix; *(uintptr_t *) e.ip; len += lcode(&e)) {
|
|
|
1302 lcode = *(ngx_http_script_len_code_pt *) e.ip;
|
|
|
1303 }
|
|
|
1304
|
|
|
1305 data = ngx_palloc(r->pool, len);
|
|
|
1306 if (data == NULL) {
|
|
|
1307 return NGX_ERROR;
|
|
|
1308 }
|
|
|
1309
|
|
|
1310 p = data;
|
|
|
1311
|
|
122
|
1312 p = ngx_copy(p, h->value.data, prefix);
|
|
58
|
1313
|
|
|
1314 e.ip = pr->replacement.vars.values;
|
|
|
1315 e.pos = p;
|
|
|
1316
|
|
|
1317 while (*(uintptr_t *) e.ip) {
|
|
|
1318 code = *(ngx_http_script_code_pt *) e.ip;
|
|
|
1319 code(&e);
|
|
|
1320 }
|
|
|
1321
|
|
|
1322 h->value.len = len;
|
|
|
1323 h->value.data = data;
|
|
|
1324
|
|
|
1325 return NGX_OK;
|
|
|
1326 }
|
|
|
1327
|
|
|
1328
|
|
|
1329 static ngx_int_t
|
|
|
1330 ngx_http_proxy_add_variables(ngx_conf_t *cf)
|
|
|
1331 {
|
|
|
1332 ngx_http_variable_t *var, *v;
|
|
|
1333
|
|
|
1334 for (v = ngx_http_proxy_vars; v->name.len; v++) {
|
|
|
1335 var = ngx_http_add_variable(cf, &v->name, v->flags);
|
|
|
1336 if (var == NULL) {
|
|
|
1337 return NGX_ERROR;
|
|
|
1338 }
|
|
|
1339
|
|
|
1340 var->handler = v->handler;
|
|
|
1341 var->data = v->data;
|
|
|
1342 }
|
|
|
1343
|
|
|
1344 return NGX_OK;
|
|
|
1345 }
|
|
|
1346
|
|
|
1347
|
|
|
1348 static void *
|
|
|
1349 ngx_http_proxy_create_loc_conf(ngx_conf_t *cf)
|
|
|
1350 {
|
|
|
1351 ngx_http_proxy_loc_conf_t *conf;
|
|
|
1352
|
|
|
1353 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_proxy_loc_conf_t));
|
|
|
1354 if (conf == NULL) {
|
|
|
1355 return NGX_CONF_ERROR;
|
|
|
1356 }
|
|
|
1357
|
|
|
1358 /*
|
|
|
1359 * set by ngx_pcalloc():
|
|
|
1360 *
|
|
|
1361 * conf->upstream.bufs.num = 0;
|
|
|
1362 * conf->upstream.path = NULL;
|
|
|
1363 * conf->upstream.next_upstream = 0;
|
|
|
1364 * conf->upstream.temp_path = NULL;
|
|
|
1365 * conf->upstream.schema = { 0, NULL };
|
|
|
1366 * conf->upstream.uri = { 0, NULL };
|
|
|
1367 * conf->upstream.location = NULL;
|
|
|
1368 *
|
|
110
|
1369 * conf->method = NULL;
|
|
58
|
1370 * conf->headers_source = NULL;
|
|
|
1371 * conf->headers_set_len = NULL;
|
|
|
1372 * conf->headers_set = NULL;
|
|
|
1373 * conf->headers_set_hash = NULL;
|
|
126
|
1374 * conf->body_set_len = NULL;
|
|
|
1375 * conf->body_set = NULL;
|
|
|
1376 * conf->body_source = { 0, NULL };
|
|
58
|
1377 * conf->rewrite_locations = NULL;
|
|
|
1378 */
|
|
126
|
1379
|
|
58
|
1380 conf->upstream.connect_timeout = NGX_CONF_UNSET_MSEC;
|
|
|
1381 conf->upstream.send_timeout = NGX_CONF_UNSET_MSEC;
|
|
|
1382 conf->upstream.read_timeout = NGX_CONF_UNSET_MSEC;
|
|
|
1383
|
|
|
1384 conf->upstream.send_lowat = NGX_CONF_UNSET_SIZE;
|
|
|
1385 conf->upstream.header_buffer_size = NGX_CONF_UNSET_SIZE;
|
|
78
|
1386
|
|
|
1387 conf->upstream.busy_buffers_size_conf = NGX_CONF_UNSET_SIZE;
|
|
126
|
1388 conf->upstream.max_temp_file_size_conf = NGX_CONF_UNSET_SIZE;
|
|
78
|
1389 conf->upstream.temp_file_write_size_conf = NGX_CONF_UNSET_SIZE;
|
|
58
|
1390
|
|
110
|
1391 conf->upstream.max_fails = NGX_CONF_UNSET_UINT;
|
|
|
1392 conf->upstream.fail_timeout = NGX_CONF_UNSET;
|
|
|
1393
|
|
58
|
1394 conf->upstream.pass_request_headers = NGX_CONF_UNSET;
|
|
|
1395 conf->upstream.pass_request_body = NGX_CONF_UNSET;
|
|
110
|
1396
|
|
58
|
1397 conf->upstream.redirect_errors = NGX_CONF_UNSET;
|
|
|
1398
|
|
|
1399 /* "proxy_cyclic_temp_file" is disabled */
|
|
|
1400 conf->upstream.cyclic_temp_file = 0;
|
|
|
1401
|
|
|
1402 conf->upstream.pass_x_powered_by = NGX_CONF_UNSET;
|
|
|
1403 conf->upstream.pass_server = NGX_CONF_UNSET;
|
|
|
1404 conf->upstream.pass_date = 0;
|
|
|
1405 conf->upstream.pass_x_accel_expires = NGX_CONF_UNSET;
|
|
|
1406
|
|
|
1407 conf->redirect = NGX_CONF_UNSET;
|
|
|
1408
|
|
|
1409 return conf;
|
|
|
1410 }
|
|
|
1411
|
|
|
1412
|
|
|
1413 static char *
|
|
|
1414 ngx_http_proxy_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child)
|
|
|
1415 {
|
|
|
1416 ngx_http_proxy_loc_conf_t *prev = parent;
|
|
|
1417 ngx_http_proxy_loc_conf_t *conf = child;
|
|
|
1418
|
|
|
1419 u_char *p;
|
|
|
1420 size_t size;
|
|
|
1421 uintptr_t *code;
|
|
|
1422 ngx_str_t *name;
|
|
|
1423 ngx_uint_t i;
|
|
|
1424 ngx_table_elt_t *src, *s, *h;
|
|
|
1425 ngx_http_proxy_redirect_t *pr;
|
|
|
1426 ngx_http_script_compile_t sc;
|
|
|
1427 ngx_http_script_copy_code_t *copy;
|
|
|
1428
|
|
|
1429 ngx_conf_merge_msec_value(conf->upstream.connect_timeout,
|
|
|
1430 prev->upstream.connect_timeout, 60000);
|
|
|
1431
|
|
|
1432 ngx_conf_merge_msec_value(conf->upstream.send_timeout,
|
|
|
1433 prev->upstream.send_timeout, 60000);
|
|
|
1434
|
|
|
1435 ngx_conf_merge_msec_value(conf->upstream.read_timeout,
|
|
|
1436 prev->upstream.read_timeout, 60000);
|
|
|
1437
|
|
|
1438 ngx_conf_merge_size_value(conf->upstream.send_lowat,
|
|
|
1439 prev->upstream.send_lowat, 0);
|
|
|
1440
|
|
|
1441 ngx_conf_merge_size_value(conf->upstream.header_buffer_size,
|
|
|
1442 prev->upstream.header_buffer_size,
|
|
|
1443 (size_t) ngx_pagesize);
|
|
|
1444
|
|
|
1445 ngx_conf_merge_bufs_value(conf->upstream.bufs, prev->upstream.bufs,
|
|
|
1446 8, ngx_pagesize);
|
|
|
1447
|
|
|
1448 if (conf->upstream.bufs.num < 2) {
|
|
126
|
1449 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
58
|
1450 "there must be at least 2 \"proxy_buffers\"");
|
|
|
1451 return NGX_CONF_ERROR;
|
|
|
1452 }
|
|
126
|
1453
|
|
58
|
1454
|
|
|
1455 size = conf->upstream.header_buffer_size;
|
|
126
|
1456 if (size < conf->upstream.bufs.size) {
|
|
58
|
1457 size = conf->upstream.bufs.size;
|
|
|
1458 }
|
|
|
1459
|
|
|
1460
|
|
78
|
1461 ngx_conf_merge_size_value(conf->upstream.busy_buffers_size_conf,
|
|
|
1462 prev->upstream.busy_buffers_size_conf,
|
|
58
|
1463 NGX_CONF_UNSET_SIZE);
|
|
|
1464
|
|
78
|
1465 if (conf->upstream.busy_buffers_size_conf == NGX_CONF_UNSET_SIZE) {
|
|
58
|
1466 conf->upstream.busy_buffers_size = 2 * size;
|
|
78
|
1467 } else {
|
|
|
1468 conf->upstream.busy_buffers_size =
|
|
|
1469 conf->upstream.busy_buffers_size_conf;
|
|
|
1470 }
|
|
126
|
1471
|
|
78
|
1472 if (conf->upstream.busy_buffers_size < size) {
|
|
58
|
1473 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1474 "\"proxy_busy_buffers_size\" must be equal or bigger than "
|
|
|
1475 "maximum of the value of \"proxy_header_buffer_size\" and "
|
|
|
1476 "one of the \"proxy_buffers\"");
|
|
|
1477
|
|
|
1478 return NGX_CONF_ERROR;
|
|
78
|
1479 }
|
|
58
|
1480
|
|
78
|
1481 if (conf->upstream.busy_buffers_size
|
|
|
1482 > (conf->upstream.bufs.num - 1) * conf->upstream.bufs.size)
|
|
58
|
1483 {
|
|
|
1484 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1485 "\"proxy_busy_buffers_size\" must be less than "
|
|
|
1486 "the size of all \"proxy_buffers\" minus one buffer");
|
|
|
1487
|
|
|
1488 return NGX_CONF_ERROR;
|
|
|
1489 }
|
|
78
|
1490
|
|
58
|
1491
|
|
78
|
1492 ngx_conf_merge_size_value(conf->upstream.temp_file_write_size_conf,
|
|
|
1493 prev->upstream.temp_file_write_size_conf,
|
|
58
|
1494 NGX_CONF_UNSET_SIZE);
|
|
|
1495
|
|
78
|
1496 if (conf->upstream.temp_file_write_size_conf == NGX_CONF_UNSET_SIZE) {
|
|
58
|
1497 conf->upstream.temp_file_write_size = 2 * size;
|
|
78
|
1498 } else {
|
|
|
1499 conf->upstream.temp_file_write_size =
|
|
|
1500 conf->upstream.temp_file_write_size_conf;
|
|
|
1501 }
|
|
126
|
1502
|
|
78
|
1503 if (conf->upstream.temp_file_write_size < size) {
|
|
58
|
1504 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1505 "\"proxy_temp_file_write_size\" must be equal or bigger than "
|
|
|
1506 "maximum of the value of \"proxy_header_buffer_size\" and "
|
|
|
1507 "one of the \"proxy_buffers\"");
|
|
|
1508
|
|
|
1509 return NGX_CONF_ERROR;
|
|
|
1510 }
|
|
|
1511
|
|
78
|
1512 ngx_conf_merge_size_value(conf->upstream.max_temp_file_size_conf,
|
|
|
1513 prev->upstream.max_temp_file_size_conf,
|
|
58
|
1514 NGX_CONF_UNSET_SIZE);
|
|
|
1515
|
|
78
|
1516 if (conf->upstream.max_temp_file_size_conf == NGX_CONF_UNSET_SIZE) {
|
|
58
|
1517 conf->upstream.max_temp_file_size = 1024 * 1024 * 1024;
|
|
78
|
1518 } else {
|
|
|
1519 conf->upstream.max_temp_file_size =
|
|
|
1520 conf->upstream.max_temp_file_size_conf;
|
|
|
1521 }
|
|
58
|
1522
|
|
78
|
1523 if (conf->upstream.max_temp_file_size != 0
|
|
|
1524 && conf->upstream.max_temp_file_size < size)
|
|
58
|
1525 {
|
|
|
1526 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
110
|
1527 "\"proxy_max_temp_file_size\" must be equal to zero to disable "
|
|
58
|
1528 "the temporary files usage or must be equal or bigger than "
|
|
110
|
1529 "maximum of the value of \"proxy_header_buffer_size\" and "
|
|
|
1530 "one of the \"proxy_buffers\"");
|
|
58
|
1531
|
|
|
1532 return NGX_CONF_ERROR;
|
|
|
1533 }
|
|
|
1534
|
|
78
|
1535
|
|
58
|
1536 ngx_conf_merge_bitmask_value(conf->upstream.next_upstream,
|
|
|
1537 prev->upstream.next_upstream,
|
|
|
1538 (NGX_CONF_BITMASK_SET
|
|
|
1539 |NGX_HTTP_UPSTREAM_FT_ERROR
|
|
|
1540 |NGX_HTTP_UPSTREAM_FT_TIMEOUT));
|
|
|
1541
|
|
110
|
1542 ngx_conf_merge_unsigned_value(conf->upstream.max_fails,
|
|
|
1543 prev->upstream.max_fails, 1);
|
|
|
1544
|
|
|
1545 ngx_conf_merge_sec_value(conf->upstream.fail_timeout,
|
|
|
1546 prev->upstream.fail_timeout, 10);
|
|
|
1547
|
|
|
1548 if (conf->peers && conf->peers->number > 1) {
|
|
|
1549 for (i = 0; i < conf->peers->number; i++) {
|
|
|
1550 conf->peers->peer[i].weight = 1;
|
|
|
1551 conf->peers->peer[i].max_fails = conf->upstream.max_fails;
|
|
|
1552 conf->peers->peer[i].fail_timeout = conf->upstream.fail_timeout;
|
|
|
1553 }
|
|
|
1554 }
|
|
|
1555
|
|
58
|
1556 ngx_conf_merge_path_value(conf->upstream.temp_path,
|
|
|
1557 prev->upstream.temp_path,
|
|
|
1558 NGX_HTTP_PROXY_TEMP_PATH, 1, 2, 0,
|
|
|
1559 ngx_garbage_collector_temp_handler, cf);
|
|
|
1560
|
|
110
|
1561 if (conf->method.len == 0) {
|
|
|
1562 conf->method = prev->method;
|
|
|
1563
|
|
|
1564 } else {
|
|
|
1565 conf->method.data[conf->method.len] = ' ';
|
|
|
1566 conf->method.len++;
|
|
58
|
1567 }
|
|
|
1568
|
|
|
1569 ngx_conf_merge_value(conf->upstream.pass_request_headers,
|
|
|
1570 prev->upstream.pass_request_headers, 1);
|
|
|
1571 ngx_conf_merge_value(conf->upstream.pass_request_body,
|
|
|
1572 prev->upstream.pass_request_body, 1);
|
|
|
1573
|
|
78
|
1574 ngx_conf_merge_value(conf->upstream.redirect_errors,
|
|
58
|
1575 prev->upstream.redirect_errors, 0);
|
|
|
1576
|
|
78
|
1577 ngx_conf_merge_value(conf->upstream.pass_x_powered_by,
|
|
58
|
1578 prev->upstream.pass_x_powered_by, 1);
|
|
78
|
1579 ngx_conf_merge_value(conf->upstream.pass_server,
|
|
58
|
1580 prev->upstream.pass_server, 0);
|
|
78
|
1581 ngx_conf_merge_value(conf->upstream.pass_x_accel_expires,
|
|
58
|
1582 prev->upstream.pass_x_accel_expires, 0);
|
|
|
1583
|
|
|
1584
|
|
|
1585 ngx_conf_merge_value(conf->redirect, prev->redirect, 1);
|
|
|
1586
|
|
|
1587 if (conf->redirect) {
|
|
|
1588
|
|
|
1589 if (conf->redirects == NULL) {
|
|
|
1590 conf->redirects = prev->redirects;
|
|
|
1591 }
|
|
|
1592
|
|
|
1593 if (conf->redirects == NULL && conf->upstream.url.data) {
|
|
|
1594
|
|
|
1595 conf->redirects = ngx_array_create(cf->pool, 1,
|
|
|
1596 sizeof(ngx_http_proxy_redirect_t));
|
|
|
1597 if (conf->redirects == NULL) {
|
|
|
1598 return NGX_CONF_ERROR;
|
|
|
1599 }
|
|
|
1600
|
|
|
1601 pr = ngx_array_push(conf->redirects);
|
|
|
1602 if (pr == NULL) {
|
|
|
1603 return NGX_CONF_ERROR;
|
|
|
1604 }
|
|
|
1605
|
|
|
1606 pr->handler = ngx_http_proxy_rewrite_redirect_text;
|
|
|
1607 pr->redirect = conf->upstream.url;
|
|
122
|
1608 pr->replacement.text = conf->upstream.location;
|
|
58
|
1609 }
|
|
|
1610 }
|
|
|
1611
|
|
|
1612
|
|
|
1613 if (conf->peers == NULL) {
|
|
|
1614 conf->peers = prev->peers;
|
|
|
1615 }
|
|
|
1616
|
|
126
|
1617
|
|
|
1618 if (conf->body_source.data == NULL) {
|
|
|
1619 conf->body_source = prev->body_source;
|
|
|
1620 conf->body_set_len = prev->body_set_len;
|
|
|
1621 conf->body_set = prev->body_set;
|
|
|
1622 }
|
|
|
1623
|
|
128
|
1624 if (conf->body_source.data && conf->body_set_len == NULL) {
|
|
126
|
1625
|
|
|
1626 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t));
|
|
|
1627
|
|
|
1628 sc.cf = cf;
|
|
|
1629 sc.source = &conf->body_source;
|
|
|
1630 sc.flushes = &conf->flushes;
|
|
|
1631 sc.lengths = &conf->body_set_len;
|
|
|
1632 sc.values = &conf->body_set;
|
|
|
1633 sc.complete_lengths = 1;
|
|
|
1634 sc.complete_values = 1;
|
|
|
1635
|
|
|
1636 if (ngx_http_script_compile(&sc) != NGX_OK) {
|
|
|
1637 return NGX_CONF_ERROR;
|
|
|
1638 }
|
|
|
1639
|
|
|
1640 if (conf->headers_source == NULL) {
|
|
|
1641 conf->headers_source = ngx_array_create(cf->pool, 4,
|
|
|
1642 sizeof(ngx_table_elt_t));
|
|
|
1643 if (conf->headers_source == NULL) {
|
|
|
1644 return NGX_CONF_ERROR;
|
|
|
1645 }
|
|
|
1646 }
|
|
|
1647
|
|
|
1648 s = ngx_array_push(conf->headers_source);
|
|
|
1649 if (s == NULL) {
|
|
|
1650 return NGX_CONF_ERROR;
|
|
|
1651 }
|
|
|
1652
|
|
|
1653 s->hash = 0;
|
|
|
1654 s->key.len = sizeof("Content-Length") - 1;
|
|
|
1655 s->key.data = (u_char *) "Content-Length";
|
|
|
1656 s->value.len = sizeof("$proxy_internal_body_length") - 1;
|
|
|
1657 s->value.data = (u_char *) "$proxy_internal_body_length";
|
|
|
1658 }
|
|
|
1659
|
|
|
1660
|
|
58
|
1661 if (conf->headers_source == NULL) {
|
|
122
|
1662 conf->flushes = prev->flushes;
|
|
58
|
1663 conf->headers_set_len = prev->headers_set_len;
|
|
|
1664 conf->headers_set = prev->headers_set;
|
|
|
1665 conf->headers_set_hash = prev->headers_set_hash;
|
|
122
|
1666 conf->headers_source = prev->headers_source;
|
|
58
|
1667 }
|
|
|
1668
|
|
|
1669 if (conf->headers_set_hash) {
|
|
|
1670 return NGX_CONF_OK;
|
|
|
1671 }
|
|
|
1672
|
|
|
1673
|
|
|
1674 conf->headers_names = ngx_array_create(cf->pool, 4, sizeof(ngx_str_t));
|
|
|
1675 if (conf->headers_names == NULL) {
|
|
|
1676 return NGX_CONF_ERROR;
|
|
|
1677 }
|
|
|
1678
|
|
|
1679 if (conf->headers_source == NULL) {
|
|
|
1680 conf->headers_source = ngx_array_create(cf->pool, 4,
|
|
|
1681 sizeof(ngx_table_elt_t));
|
|
|
1682 if (conf->headers_source == NULL) {
|
|
|
1683 return NGX_CONF_ERROR;
|
|
|
1684 }
|
|
|
1685 }
|
|
|
1686
|
|
|
1687 conf->headers_set_len = ngx_array_create(cf->pool, 64, 1);
|
|
|
1688 if (conf->headers_set_len == NULL) {
|
|
|
1689 return NGX_CONF_ERROR;
|
|
|
1690 }
|
|
|
1691
|
|
|
1692 conf->headers_set = ngx_array_create(cf->pool, 512, 1);
|
|
|
1693 if (conf->headers_set == NULL) {
|
|
|
1694 return NGX_CONF_ERROR;
|
|
|
1695 }
|
|
|
1696
|
|
|
1697
|
|
|
1698 src = conf->headers_source->elts;
|
|
|
1699
|
|
|
1700 for (h = ngx_http_proxy_headers; h->key.len; h++) {
|
|
|
1701
|
|
|
1702 for (i = 0; i < conf->headers_source->nelts; i++) {
|
|
|
1703 if (ngx_strcasecmp(h->key.data, src[i].key.data) == 0) {
|
|
|
1704 goto next;
|
|
|
1705 }
|
|
|
1706 }
|
|
|
1707
|
|
|
1708 s = ngx_array_push(conf->headers_source);
|
|
|
1709 if (s == NULL) {
|
|
|
1710 return NGX_CONF_ERROR;
|
|
|
1711 }
|
|
|
1712
|
|
|
1713 *s = *h;
|
|
|
1714
|
|
66
|
1715 src = conf->headers_source->elts;
|
|
|
1716
|
|
58
|
1717 next:
|
|
|
1718
|
|
|
1719 continue;
|
|
|
1720 }
|
|
|
1721
|
|
126
|
1722
|
|
|
1723 src = conf->headers_source->elts;
|
|
58
|
1724 for (i = 0; i < conf->headers_source->nelts; i++) {
|
|
|
1725
|
|
|
1726 name = ngx_array_push(conf->headers_names);
|
|
|
1727 if (name == NULL) {
|
|
|
1728 return NGX_CONF_ERROR;
|
|
|
1729 }
|
|
|
1730
|
|
|
1731 *name = src[i].key;
|
|
|
1732
|
|
68
|
1733 if (src[i].value.len == 0) {
|
|
|
1734 continue;
|
|
|
1735 }
|
|
|
1736
|
|
58
|
1737 if (ngx_http_script_variables_count(&src[i].value) == 0) {
|
|
|
1738 copy = ngx_array_push_n(conf->headers_set_len,
|
|
|
1739 sizeof(ngx_http_script_copy_code_t));
|
|
|
1740 if (copy == NULL) {
|
|
|
1741 return NGX_CONF_ERROR;
|
|
|
1742 }
|
|
|
1743
|
|
|
1744 copy->code = (ngx_http_script_code_pt)
|
|
|
1745 ngx_http_script_copy_len_code;
|
|
|
1746 copy->len = src[i].key.len + sizeof(": ") - 1
|
|
|
1747 + src[i].value.len + sizeof(CRLF) - 1;
|
|
|
1748
|
|
|
1749
|
|
|
1750 size = (sizeof(ngx_http_script_copy_code_t)
|
|
|
1751 + src[i].key.len + sizeof(": ") - 1
|
|
|
1752 + src[i].value.len + sizeof(CRLF) - 1
|
|
|
1753 + sizeof(uintptr_t) - 1)
|
|
|
1754 & ~(sizeof(uintptr_t) - 1);
|
|
|
1755
|
|
|
1756 copy = ngx_array_push_n(conf->headers_set, size);
|
|
|
1757 if (copy == NULL) {
|
|
|
1758 return NGX_CONF_ERROR;
|
|
|
1759 }
|
|
|
1760
|
|
|
1761 copy->code = ngx_http_script_copy_code;
|
|
|
1762 copy->len = src[i].key.len + sizeof(": ") - 1
|
|
|
1763 + src[i].value.len + sizeof(CRLF) - 1;
|
|
|
1764
|
|
|
1765 p = (u_char *) copy + sizeof(ngx_http_script_copy_code_t);
|
|
|
1766
|
|
|
1767 p = ngx_cpymem(p, src[i].key.data, src[i].key.len);
|
|
|
1768 *p++ = ':'; *p++ = ' ';
|
|
|
1769 p = ngx_cpymem(p, src[i].value.data, src[i].value.len);
|
|
|
1770 *p++ = CR; *p = LF;
|
|
|
1771
|
|
|
1772 } else {
|
|
|
1773 copy = ngx_array_push_n(conf->headers_set_len,
|
|
|
1774 sizeof(ngx_http_script_copy_code_t));
|
|
|
1775 if (copy == NULL) {
|
|
|
1776 return NGX_CONF_ERROR;
|
|
|
1777 }
|
|
|
1778
|
|
|
1779 copy->code = (ngx_http_script_code_pt)
|
|
|
1780 ngx_http_script_copy_len_code;
|
|
|
1781 copy->len = src[i].key.len + sizeof(": ") - 1;
|
|
|
1782
|
|
|
1783
|
|
|
1784 size = (sizeof(ngx_http_script_copy_code_t)
|
|
|
1785 + src[i].key.len + sizeof(": ") - 1 + sizeof(uintptr_t) - 1)
|
|
|
1786 & ~(sizeof(uintptr_t) - 1);
|
|
|
1787
|
|
|
1788 copy = ngx_array_push_n(conf->headers_set, size);
|
|
|
1789 if (copy == NULL) {
|
|
|
1790 return NGX_CONF_ERROR;
|
|
|
1791 }
|
|
|
1792
|
|
|
1793 copy->code = ngx_http_script_copy_code;
|
|
|
1794 copy->len = src[i].key.len + sizeof(": ") - 1;
|
|
|
1795
|
|
|
1796 p = (u_char *) copy + sizeof(ngx_http_script_copy_code_t);
|
|
|
1797 p = ngx_cpymem(p, src[i].key.data, src[i].key.len);
|
|
|
1798 *p++ = ':'; *p = ' ';
|
|
|
1799
|
|
|
1800
|
|
|
1801 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t));
|
|
|
1802
|
|
|
1803 sc.cf = cf;
|
|
|
1804 sc.source = &src[i].value;
|
|
122
|
1805 sc.flushes = &conf->flushes;
|
|
58
|
1806 sc.lengths = &conf->headers_set_len;
|
|
|
1807 sc.values = &conf->headers_set;
|
|
|
1808
|
|
|
1809 if (ngx_http_script_compile(&sc) != NGX_OK) {
|
|
|
1810 return NGX_CONF_ERROR;
|
|
|
1811 }
|
|
|
1812
|
|
|
1813
|
|
|
1814 copy = ngx_array_push_n(conf->headers_set_len,
|
|
|
1815 sizeof(ngx_http_script_copy_code_t));
|
|
|
1816 if (copy == NULL) {
|
|
|
1817 return NGX_CONF_ERROR;
|
|
|
1818 }
|
|
|
1819
|
|
|
1820 copy->code = (ngx_http_script_code_pt)
|
|
|
1821 ngx_http_script_copy_len_code;
|
|
|
1822 copy->len = sizeof(CRLF) - 1;
|
|
|
1823
|
|
|
1824
|
|
|
1825 size = (sizeof(ngx_http_script_copy_code_t)
|
|
|
1826 + sizeof(CRLF) - 1 + sizeof(uintptr_t) - 1)
|
|
|
1827 & ~(sizeof(uintptr_t) - 1);
|
|
|
1828
|
|
|
1829 copy = ngx_array_push_n(conf->headers_set, size);
|
|
|
1830 if (copy == NULL) {
|
|
|
1831 return NGX_CONF_ERROR;
|
|
|
1832 }
|
|
|
1833
|
|
|
1834 copy->code = ngx_http_script_copy_code;
|
|
|
1835 copy->len = sizeof(CRLF) - 1;
|
|
|
1836
|
|
|
1837 p = (u_char *) copy + sizeof(ngx_http_script_copy_code_t);
|
|
|
1838 *p++ = CR; *p = LF;
|
|
|
1839 }
|
|
|
1840
|
|
|
1841 code = ngx_array_push_n(conf->headers_set_len, sizeof(uintptr_t));
|
|
|
1842 if (code == NULL) {
|
|
|
1843 return NGX_CONF_ERROR;
|
|
|
1844 }
|
|
|
1845
|
|
|
1846 *code = (uintptr_t) NULL;
|
|
|
1847
|
|
|
1848 code = ngx_array_push_n(conf->headers_set, sizeof(uintptr_t));
|
|
|
1849 if (code == NULL) {
|
|
|
1850 return NGX_CONF_ERROR;
|
|
|
1851 }
|
|
|
1852
|
|
|
1853 *code = (uintptr_t) NULL;
|
|
|
1854 }
|
|
|
1855
|
|
|
1856 code = ngx_array_push_n(conf->headers_set_len, sizeof(uintptr_t));
|
|
|
1857 if (code == NULL) {
|
|
|
1858 return NGX_CONF_ERROR;
|
|
|
1859 }
|
|
|
1860
|
|
|
1861 *code = (uintptr_t) NULL;
|
|
|
1862
|
|
|
1863
|
|
|
1864 conf->headers_set_hash = ngx_pcalloc(cf->pool, sizeof(ngx_hash_t));
|
|
|
1865 if (conf->headers_set_hash == NULL) {
|
|
|
1866 return NGX_CONF_ERROR;
|
|
|
1867 }
|
|
|
1868
|
|
|
1869 conf->headers_set_hash->max_size = 100;
|
|
|
1870 conf->headers_set_hash->bucket_limit = 1;
|
|
|
1871 conf->headers_set_hash->bucket_size = sizeof(ngx_str_t);
|
|
|
1872 conf->headers_set_hash->name = "proxy_headers";
|
|
|
1873
|
|
|
1874 if (ngx_hash_init(conf->headers_set_hash, cf->pool,
|
|
|
1875 conf->headers_names->elts, conf->headers_names->nelts) != NGX_OK)
|
|
|
1876 {
|
|
|
1877 return NGX_CONF_ERROR;
|
|
|
1878 }
|
|
|
1879
|
|
|
1880 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, cf->log, 0,
|
|
|
1881 "proxy_headers hash size: %ui, "
|
|
|
1882 "max buckets per entry: %ui",
|
|
|
1883 conf->headers_set_hash->hash_size,
|
|
|
1884 conf->headers_set_hash->min_buckets);
|
|
|
1885
|
|
|
1886 return NGX_CONF_OK;
|
|
|
1887 }
|
|
|
1888
|
|
|
1889
|
|
|
1890 static char *
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1891 ngx_http_proxy_pass(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
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1892 {
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1893 ngx_http_proxy_loc_conf_t *plcf = conf;
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1894
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126
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1895 size_t add;
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58
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1896 ngx_str_t *value, *url;
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1897 ngx_inet_upstream_t inet_upstream;
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1898 ngx_http_core_loc_conf_t *clcf;
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126
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1899 #if (NGX_HTTP_SSL)
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1900 ngx_pool_cleanup_t *cln;
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1901 #endif
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58
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1902 #if (NGX_HAVE_UNIX_DOMAIN)
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1903 ngx_unix_domain_upstream_t unix_upstream;
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1904 #endif
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1905
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104
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1906 if (plcf->upstream.schema.len) {
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1907 return "is duplicate";
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1908 }
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1909
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58
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1910 value = cf->args->elts;
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1911
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1912 url = &value[1];
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1913
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126
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1914 if (ngx_strncasecmp(url->data, "http://", 7) == 0) {
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1915 add = 7;
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1916
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1917 } else if (ngx_strncasecmp(url->data, "https://", 8) == 0) {
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1918
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1919 #if (NGX_HTTP_SSL)
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1920
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1921 add = 8;
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1922
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1923 plcf->upstream.ssl = ngx_pcalloc(cf->pool, sizeof(ngx_ssl_t));
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1924 if (plcf->upstream.ssl == NULL) {
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1925 return NGX_CONF_ERROR;
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1926 }
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1927
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1928 plcf->upstream.ssl->log = cf->log;
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1929
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1930 if (ngx_ssl_create(plcf->upstream.ssl,
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1931 NGX_SSL_SSLv2|NGX_SSL_SSLv3|NGX_SSL_TLSv1)
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1932 != NGX_OK)
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1933 {
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1934 return NGX_CONF_ERROR;
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1935 }
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1936
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1937 cln = ngx_pool_cleanup_add(cf->pool, 0);
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1938 if (cln == NULL) {
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1939 return NGX_CONF_ERROR;
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1940 }
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1941
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1942 cln->handler = ngx_ssl_cleanup_ctx;
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1943 cln->data = plcf->upstream.ssl;
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1944
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1945 #else
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1946 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
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1947 "https protocol requires SSL support");
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1948 return NGX_CONF_ERROR;
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1949 #endif
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1950
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1951 } else {
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58
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1952 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid URL prefix");
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1953 return NGX_CONF_ERROR;
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1954 }
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1955
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126
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1956 if (ngx_strncasecmp(url->data + add, "unix:", 5) == 0) {
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58
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1957
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1958 #if (NGX_HAVE_UNIX_DOMAIN)
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1959
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1960 ngx_memzero(&unix_upstream, sizeof(ngx_unix_domain_upstream_t));
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1961
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1962 unix_upstream.name = *url;
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126
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1963 unix_upstream.url.len = url->len - add;
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1964 unix_upstream.url.data = url->data + add;
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58
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1965 unix_upstream.uri_part = 1;
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1966
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1967 plcf->peers = ngx_unix_upstream_parse(cf, &unix_upstream);
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1968 if (plcf->peers == NULL) {
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1969 return NGX_CONF_ERROR;
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1970 }
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1971
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1972 plcf->host_header.len = sizeof("localhost") - 1;
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1973 plcf->host_header.data = (u_char *) "localhost";
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1974 plcf->upstream.uri = unix_upstream.uri;
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1975
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1976 #else
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1977 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
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1978 "the unix domain sockets are not supported "
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1979 "on this platform");
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1980 return NGX_CONF_ERROR;
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1981
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1982 #endif
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1983
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1984 } else {
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1985 ngx_memzero(&inet_upstream, sizeof(ngx_inet_upstream_t));
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1986
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1987 inet_upstream.name = *url;
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126
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1988 inet_upstream.url.len = url->len - add;
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1989 inet_upstream.url.data = url->data + add;
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58
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1990 inet_upstream.default_port_value = 80;
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1991 inet_upstream.uri_part = 1;
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1992
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1993 plcf->peers = ngx_inet_upstream_parse(cf, &inet_upstream);
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1994 if (plcf->peers == NULL) {
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1995 return NGX_CONF_ERROR;
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1996 }
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1997
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1998 plcf->host_header = inet_upstream.host_header;
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1999 plcf->port_text = inet_upstream.port_text;
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2000 plcf->upstream.uri = inet_upstream.uri;
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2001 }
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2002
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2003 plcf->upstream.schema.len = sizeof("http://") - 1;
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2004 plcf->upstream.schema.data = (u_char *) "http://";
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2005
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2006 clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module);
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2007
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2008 clcf->handler = ngx_http_proxy_handler;
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2009
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122
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2010 plcf->upstream.location = clcf->name;
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104
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2011
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58
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2012 #if (NGX_PCRE)
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104
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2013
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122
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2014 if (clcf->regex) {
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2015 if (plcf->upstream.uri.len) {
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2016 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
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2017 "\"proxy_pass\" may not have URI part in "
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2018 "location given by regular expression");
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2019 return NGX_CONF_ERROR;
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2020 }
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2021
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2022 plcf->upstream.location.len = 0;
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104
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2023 }
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2024
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58
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2025 #endif
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2026
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2027 plcf->upstream.url = *url;
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2028
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2029 if (clcf->name.data[clcf->name.len - 1] == '/') {
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2030 clcf->auto_redirect = 1;
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2031 }
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2032
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2033 return NGX_CONF_OK;
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2034 }
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2035
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2036
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2037 static char *
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2038 ngx_http_proxy_redirect(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
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2039 {
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2040 ngx_http_proxy_loc_conf_t *plcf = conf;
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2041
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2042 ngx_str_t *value;
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2043 ngx_array_t *vars_lengths, *vars_values;
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2044 ngx_http_script_compile_t sc;
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2045 ngx_http_proxy_redirect_t *pr;
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2046
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2047 if (plcf->redirect == 0) {
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2048 return NGX_CONF_OK;
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2049 }
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2050
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2051 value = cf->args->elts;
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2052
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2053 if (ngx_strcmp(value[1].data, "off") == 0) {
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2054 plcf->redirect = 0;
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2055 plcf->redirects = NULL;
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2056 return NGX_CONF_OK;
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2057 }
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2058
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2059 if (plcf->redirects == NULL) {
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2060 plcf->redirects = ngx_array_create(cf->pool, 1,
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2061 sizeof(ngx_http_proxy_redirect_t));
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2062 if (plcf->redirects == NULL) {
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2063 return NGX_CONF_ERROR;
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2064 }
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2065 }
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2066
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2067 pr = ngx_array_push(plcf->redirects);
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2068 if (pr == NULL) {
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2069 return NGX_CONF_ERROR;
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2070 }
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2071
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2072 if (cf->args->nelts == 2 && ngx_strcmp(value[1].data, "default") == 0) {
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2073 if (plcf->upstream.url.data == NULL) {
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2074 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
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2075 "\"proxy_rewrite_location default\" must go "
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2076 "after the \"proxy_pass\" directive");
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2077 return NGX_CONF_ERROR;
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2078 }
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2079
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2080 pr->handler = ngx_http_proxy_rewrite_redirect_text;
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2081 pr->redirect = plcf->upstream.url;
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122
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2082 pr->replacement.text = plcf->upstream.location;
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58
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2083
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2084 return NGX_CONF_OK;
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2085 }
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2086
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2087 if (ngx_http_script_variables_count(&value[2]) == 0) {
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2088 pr->handler = ngx_http_proxy_rewrite_redirect_text;
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2089 pr->redirect = value[1];
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2090 pr->replacement.text = value[2];
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2091
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2092 return NGX_CONF_OK;
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2093 }
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2094
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2095 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t));
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2096
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2097 vars_lengths = NULL;
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2098 vars_values = NULL;
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2099
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2100 sc.cf = cf;
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2101 sc.source = &value[2];
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2102 sc.lengths = &vars_lengths;
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2103 sc.values = &vars_values;
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2104 sc.complete_lengths = 1;
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2105 sc.complete_values = 1;
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2106
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2107 if (ngx_http_script_compile(&sc) != NGX_OK) {
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2108 return NGX_CONF_ERROR;
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2109 }
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2110
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2111 pr->handler = ngx_http_proxy_rewrite_redirect_vars;
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2112 pr->redirect = value[1];
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2113 pr->replacement.vars.lengths = vars_lengths->elts;
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2114 pr->replacement.vars.values = vars_values->elts;
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2115
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2116 return NGX_CONF_OK;
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2117 }
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2118
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2119
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2120 static char *
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2121 ngx_http_proxy_lowat_check(ngx_conf_t *cf, void *post, void *data)
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2122 {
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2123 #if (NGX_FREEBSD)
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2124 ssize_t *np = data;
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2125
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2126 if (*np >= ngx_freebsd_net_inet_tcp_sendspace) {
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2127 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
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2128 "\"proxy_send_lowat\" must be less than %d "
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2129 "(sysctl net.inet.tcp.sendspace)",
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2130 ngx_freebsd_net_inet_tcp_sendspace);
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2131
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2132 return NGX_CONF_ERROR;
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2133 }
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2134
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2135 #elif !(NGX_HAVE_SO_SNDLOWAT)
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2136 ssize_t *np = data;
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2137
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2138 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
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2139 "\"proxy_send_lowat\" is not supported, ignored");
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2140
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2141 *np = 0;
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2142
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2143 #endif
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2144
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2145 return NGX_CONF_OK;
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2146 }
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