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1
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577
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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5
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6
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
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9 #include <ngx_event.h>
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10 #include <ngx_http.h>
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11
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12
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13 typedef struct ngx_http_proxy_redirect_s ngx_http_proxy_redirect_t;
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14
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15 typedef ngx_int_t (*ngx_http_proxy_redirect_pt)(ngx_http_request_t *r,
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16 ngx_table_elt_t *h, size_t prefix, ngx_http_proxy_redirect_t *pr);
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17
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18 struct ngx_http_proxy_redirect_s {
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19 ngx_http_proxy_redirect_pt handler;
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20 ngx_str_t redirect;
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21
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22 union {
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23 ngx_str_t text;
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24
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25 struct {
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26 void *lengths;
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27 void *values;
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28 } vars;
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29
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30 void *regex;
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31 } replacement;
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32 };
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33
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34
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35 typedef struct {
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36 ngx_http_upstream_conf_t upstream;
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37
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38 ngx_http_upstream_srv_conf_t *upstream_peers;
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39
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40 ngx_array_t *flushes;
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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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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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67
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68 size_t internal_body_length;
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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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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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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 static ngx_conf_deprecated_t ngx_conf_deprecated_proxy_header_buffer_size = {
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115 ngx_conf_deprecated, "proxy_header_buffer_size", "proxy_buffer_size"
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116 };
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117
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118 static ngx_conf_deprecated_t ngx_conf_deprecated_proxy_redirect_errors = {
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119 ngx_conf_deprecated, "proxy_redirect_errors", "proxy_intercept_errors"
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120 };
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121
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122
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123 static ngx_conf_bitmask_t ngx_http_proxy_next_upstream_masks[] = {
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124 { ngx_string("error"), NGX_HTTP_UPSTREAM_FT_ERROR },
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125 { ngx_string("timeout"), NGX_HTTP_UPSTREAM_FT_TIMEOUT },
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126 { ngx_string("invalid_header"), NGX_HTTP_UPSTREAM_FT_INVALID_HEADER },
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127 { ngx_string("http_500"), NGX_HTTP_UPSTREAM_FT_HTTP_500 },
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128 { ngx_string("http_503"), NGX_HTTP_UPSTREAM_FT_HTTP_503 },
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129 { ngx_string("http_404"), NGX_HTTP_UPSTREAM_FT_HTTP_404 },
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130 { ngx_null_string, 0 }
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131 };
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132
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133
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134 static ngx_command_t ngx_http_proxy_commands[] = {
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135
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136 { ngx_string("proxy_pass"),
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629
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137 NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF|NGX_CONF_TAKE1,
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138 ngx_http_proxy_pass,
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139 NGX_HTTP_LOC_CONF_OFFSET,
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140 0,
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141 NULL },
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142
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143 { ngx_string("proxy_redirect"),
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144 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE12,
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145 ngx_http_proxy_redirect,
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146 NGX_HTTP_LOC_CONF_OFFSET,
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147 0,
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148 NULL },
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149
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150 { ngx_string("proxy_buffering"),
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151 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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152 ngx_conf_set_flag_slot,
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153 NGX_HTTP_LOC_CONF_OFFSET,
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154 offsetof(ngx_http_proxy_loc_conf_t, upstream.buffering),
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155 NULL },
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156
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157 { ngx_string("proxy_ignore_client_abort"),
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158 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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159 ngx_conf_set_flag_slot,
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160 NGX_HTTP_LOC_CONF_OFFSET,
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161 offsetof(ngx_http_proxy_loc_conf_t, upstream.ignore_client_abort),
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162 NULL },
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163
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164 { ngx_string("proxy_connect_timeout"),
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165 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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166 ngx_conf_set_msec_slot,
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167 NGX_HTTP_LOC_CONF_OFFSET,
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168 offsetof(ngx_http_proxy_loc_conf_t, upstream.connect_timeout),
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169 NULL },
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170
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171 { ngx_string("proxy_send_timeout"),
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172 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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173 ngx_conf_set_msec_slot,
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174 NGX_HTTP_LOC_CONF_OFFSET,
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175 offsetof(ngx_http_proxy_loc_conf_t, upstream.send_timeout),
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176 NULL },
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177
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178 { ngx_string("proxy_send_lowat"),
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179 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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180 ngx_conf_set_size_slot,
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181 NGX_HTTP_LOC_CONF_OFFSET,
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182 offsetof(ngx_http_proxy_loc_conf_t, upstream.send_lowat),
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183 &ngx_http_proxy_lowat_post },
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184
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185 { ngx_string("proxy_intercept_errors"),
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186 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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187 ngx_conf_set_flag_slot,
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188 NGX_HTTP_LOC_CONF_OFFSET,
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189 offsetof(ngx_http_proxy_loc_conf_t, upstream.intercept_errors),
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190 NULL },
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191
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192 { ngx_string("proxy_redirect_errors"),
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193 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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194 ngx_conf_set_flag_slot,
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195 NGX_HTTP_LOC_CONF_OFFSET,
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196 offsetof(ngx_http_proxy_loc_conf_t, upstream.intercept_errors),
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197 &ngx_conf_deprecated_proxy_redirect_errors },
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198
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199 { ngx_string("proxy_set_header"),
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200 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2,
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201 ngx_conf_set_keyval_slot,
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202 NGX_HTTP_LOC_CONF_OFFSET,
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203 offsetof(ngx_http_proxy_loc_conf_t, headers_source),
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204 NULL },
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205
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206 { ngx_string("proxy_set_body"),
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207 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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208 ngx_conf_set_str_slot,
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209 NGX_HTTP_LOC_CONF_OFFSET,
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210 offsetof(ngx_http_proxy_loc_conf_t, body_source),
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211 NULL },
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212
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213 { ngx_string("proxy_method"),
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214 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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215 ngx_conf_set_str_slot,
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216 NGX_HTTP_LOC_CONF_OFFSET,
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217 offsetof(ngx_http_proxy_loc_conf_t, method),
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218 NULL },
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219
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220 { ngx_string("proxy_pass_request_headers"),
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221 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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222 ngx_conf_set_flag_slot,
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223 NGX_HTTP_LOC_CONF_OFFSET,
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224 offsetof(ngx_http_proxy_loc_conf_t, upstream.pass_request_headers),
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225 NULL },
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226
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227 { ngx_string("proxy_pass_request_body"),
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228 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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229 ngx_conf_set_flag_slot,
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230 NGX_HTTP_LOC_CONF_OFFSET,
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231 offsetof(ngx_http_proxy_loc_conf_t, upstream.pass_request_body),
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232 NULL },
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233
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234 { ngx_string("proxy_buffer_size"),
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235 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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236 ngx_conf_set_size_slot,
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237 NGX_HTTP_LOC_CONF_OFFSET,
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238 offsetof(ngx_http_proxy_loc_conf_t, upstream.buffer_size),
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239 NULL },
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240
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241 { ngx_string("proxy_header_buffer_size"),
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242 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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243 ngx_conf_set_size_slot,
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244 NGX_HTTP_LOC_CONF_OFFSET,
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245 offsetof(ngx_http_proxy_loc_conf_t, upstream.buffer_size),
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246 &ngx_conf_deprecated_proxy_header_buffer_size },
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247
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248 { ngx_string("proxy_read_timeout"),
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249 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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250 ngx_conf_set_msec_slot,
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251 NGX_HTTP_LOC_CONF_OFFSET,
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252 offsetof(ngx_http_proxy_loc_conf_t, upstream.read_timeout),
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253 NULL },
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254
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255 { ngx_string("proxy_buffers"),
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256 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2,
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257 ngx_conf_set_bufs_slot,
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258 NGX_HTTP_LOC_CONF_OFFSET,
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259 offsetof(ngx_http_proxy_loc_conf_t, upstream.bufs),
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260 NULL },
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261
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262 { ngx_string("proxy_busy_buffers_size"),
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263 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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264 ngx_conf_set_size_slot,
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265 NGX_HTTP_LOC_CONF_OFFSET,
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266 offsetof(ngx_http_proxy_loc_conf_t, upstream.busy_buffers_size_conf),
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267 NULL },
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268
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269 { ngx_string("proxy_temp_path"),
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270 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1234,
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271 ngx_conf_set_path_slot,
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272 NGX_HTTP_LOC_CONF_OFFSET,
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273 offsetof(ngx_http_proxy_loc_conf_t, upstream.temp_path),
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274 (void *) ngx_garbage_collector_temp_handler },
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275
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276 { ngx_string("proxy_max_temp_file_size"),
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277 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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278 ngx_conf_set_size_slot,
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279 NGX_HTTP_LOC_CONF_OFFSET,
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280 offsetof(ngx_http_proxy_loc_conf_t, upstream.max_temp_file_size_conf),
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281 NULL },
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282
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283 { ngx_string("proxy_temp_file_write_size"),
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284 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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285 ngx_conf_set_size_slot,
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286 NGX_HTTP_LOC_CONF_OFFSET,
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287 offsetof(ngx_http_proxy_loc_conf_t, upstream.temp_file_write_size_conf),
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288 NULL },
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289
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290 { ngx_string("proxy_next_upstream"),
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547
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291 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
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507
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292 ngx_conf_set_bitmask_slot,
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293 NGX_HTTP_LOC_CONF_OFFSET,
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294 offsetof(ngx_http_proxy_loc_conf_t, upstream.next_upstream),
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295 &ngx_http_proxy_next_upstream_masks },
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296
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561
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297 { ngx_string("proxy_upstream_max_fails"),
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298 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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299 ngx_conf_set_num_slot,
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300 NGX_HTTP_LOC_CONF_OFFSET,
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301 offsetof(ngx_http_proxy_loc_conf_t, upstream.max_fails),
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302 NULL },
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303
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304 { ngx_string("proxy_upstream_fail_timeout"),
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305 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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306 ngx_conf_set_sec_slot,
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307 NGX_HTTP_LOC_CONF_OFFSET,
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308 offsetof(ngx_http_proxy_loc_conf_t, upstream.fail_timeout),
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309 NULL },
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310
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649
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311 { ngx_string("proxy_pass_header"),
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312 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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649
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313 ngx_conf_set_str_array_slot,
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507
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314 NGX_HTTP_LOC_CONF_OFFSET,
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649
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315 offsetof(ngx_http_proxy_loc_conf_t, upstream.pass_headers),
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316 NULL },
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317
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649
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318 { ngx_string("proxy_hide_header"),
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507
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319 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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649
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320 ngx_conf_set_str_array_slot,
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507
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321 NGX_HTTP_LOC_CONF_OFFSET,
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649
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322 offsetof(ngx_http_proxy_loc_conf_t, upstream.hide_headers),
|
|
507
|
323 NULL },
|
|
|
324
|
|
|
325 ngx_null_command
|
|
|
326 };
|
|
|
327
|
|
|
328
|
|
|
329 ngx_http_module_t ngx_http_proxy_module_ctx = {
|
|
509
|
330 ngx_http_proxy_add_variables, /* preconfiguration */
|
|
|
331 NULL, /* postconfiguration */
|
|
507
|
332
|
|
|
333 NULL, /* create main configuration */
|
|
|
334 NULL, /* init main configuration */
|
|
|
335
|
|
|
336 NULL, /* create server configuration */
|
|
|
337 NULL, /* merge server configuration */
|
|
|
338
|
|
|
339 ngx_http_proxy_create_loc_conf, /* create location configration */
|
|
|
340 ngx_http_proxy_merge_loc_conf /* merge location configration */
|
|
|
341 };
|
|
|
342
|
|
|
343
|
|
|
344 ngx_module_t ngx_http_proxy_module = {
|
|
509
|
345 NGX_MODULE_V1,
|
|
507
|
346 &ngx_http_proxy_module_ctx, /* module context */
|
|
|
347 ngx_http_proxy_commands, /* module directives */
|
|
|
348 NGX_HTTP_MODULE, /* module type */
|
|
541
|
349 NULL, /* init master */
|
|
509
|
350 NULL, /* init module */
|
|
541
|
351 NULL, /* init process */
|
|
|
352 NULL, /* init thread */
|
|
|
353 NULL, /* exit thread */
|
|
|
354 NULL, /* exit process */
|
|
|
355 NULL, /* exit master */
|
|
|
356 NGX_MODULE_V1_PADDING
|
|
507
|
357 };
|
|
|
358
|
|
|
359
|
|
|
360 static char ngx_http_proxy_version[] = " HTTP/1.0" CRLF;
|
|
|
361
|
|
509
|
362
|
|
649
|
363 static ngx_keyval_t ngx_http_proxy_headers[] = {
|
|
|
364 { ngx_string("Host"), ngx_string("$proxy_host") },
|
|
|
365 { ngx_string("Connection"), ngx_string("close") },
|
|
|
366 { ngx_string("Keep-Alive"), ngx_string("") },
|
|
|
367 { ngx_null_string, ngx_null_string }
|
|
|
368 };
|
|
|
369
|
|
|
370
|
|
|
371 static ngx_str_t ngx_http_proxy_hide_headers[] = {
|
|
|
372 ngx_string("Date"),
|
|
|
373 ngx_string("Server"),
|
|
|
374 ngx_string("X-Pad"),
|
|
|
375 ngx_string("X-Accel-Expires"),
|
|
|
376 ngx_string("X-Accel-Redirect"),
|
|
|
377 ngx_string("X-Accel-Limit-Rate"),
|
|
|
378 ngx_string("X-Accel-Buffer"),
|
|
|
379 ngx_null_string
|
|
509
|
380 };
|
|
|
381
|
|
|
382
|
|
|
383 static ngx_http_variable_t ngx_http_proxy_vars[] = {
|
|
|
384
|
|
637
|
385 { ngx_string("proxy_host"), NULL, ngx_http_proxy_host_variable, 0,
|
|
583
|
386 NGX_HTTP_VAR_CHANGABLE|NGX_HTTP_VAR_NOHASH, 0 },
|
|
509
|
387
|
|
637
|
388 { ngx_string("proxy_port"), NULL, ngx_http_proxy_port_variable, 0,
|
|
583
|
389 NGX_HTTP_VAR_CHANGABLE|NGX_HTTP_VAR_NOHASH, 0 },
|
|
509
|
390
|
|
637
|
391 { ngx_string("proxy_add_x_forwarded_for"), NULL,
|
|
583
|
392 ngx_http_proxy_add_x_forwarded_for_variable, 0, NGX_HTTP_VAR_NOHASH, 0 },
|
|
509
|
393
|
|
|
394 #if 0
|
|
637
|
395 { ngx_string("proxy_add_via"), NULL, NULL, 0, NGX_HTTP_VAR_NOHASH, 0 },
|
|
509
|
396 #endif
|
|
|
397
|
|
637
|
398 { ngx_string("proxy_internal_body_length"), NULL,
|
|
583
|
399 ngx_http_proxy_internal_body_length_variable, 0, NGX_HTTP_VAR_NOHASH, 0 },
|
|
577
|
400
|
|
637
|
401 { ngx_null_string, NULL, NULL, 0, 0, 0 }
|
|
509
|
402 };
|
|
507
|
403
|
|
|
404
|
|
|
405 static ngx_int_t
|
|
|
406 ngx_http_proxy_handler(ngx_http_request_t *r)
|
|
577
|
407 {
|
|
507
|
408 ngx_int_t rc;
|
|
|
409 ngx_http_upstream_t *u;
|
|
|
410 ngx_http_proxy_loc_conf_t *plcf;
|
|
577
|
411
|
|
507
|
412 plcf = ngx_http_get_module_loc_conf(r, ngx_http_proxy_module);
|
|
577
|
413
|
|
507
|
414 u = ngx_pcalloc(r->pool, sizeof(ngx_http_upstream_t));
|
|
|
415 if (u == NULL) {
|
|
|
416 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
417 }
|
|
577
|
418
|
|
507
|
419 u->peer.log = r->connection->log;
|
|
|
420 u->peer.log_error = NGX_ERROR_ERR;
|
|
651
|
421 u->peer.peers = plcf->upstream_peers->peers;
|
|
|
422 u->peer.tries = plcf->upstream_peers->peers->number;
|
|
507
|
423 #if (NGX_THREADS)
|
|
|
424 u->peer.lock = &r->connection->lock;
|
|
|
425 #endif
|
|
|
426
|
|
|
427 u->output.tag = (ngx_buf_tag_t) &ngx_http_proxy_module;
|
|
|
428
|
|
|
429 u->conf = &plcf->upstream;
|
|
|
430
|
|
|
431 u->create_request = ngx_http_proxy_create_request;
|
|
|
432 u->reinit_request = ngx_http_proxy_reinit_request;
|
|
509
|
433 u->process_header = ngx_http_proxy_process_status_line;
|
|
507
|
434 u->abort_request = ngx_http_proxy_abort_request;
|
|
|
435 u->finalize_request = ngx_http_proxy_finalize_request;
|
|
|
436
|
|
509
|
437 if (plcf->redirects) {
|
|
|
438 u->rewrite_redirect = ngx_http_proxy_rewrite_redirect;
|
|
|
439 }
|
|
|
440
|
|
649
|
441 u->buffering = plcf->upstream.buffering;
|
|
|
442
|
|
|
443 u->pipe = ngx_pcalloc(r->pool, sizeof(ngx_event_pipe_t));
|
|
|
444 if (u->pipe == NULL) {
|
|
|
445 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
581
|
446 }
|
|
507
|
447
|
|
649
|
448 u->pipe->input_filter = ngx_event_pipe_copy_input_filter;
|
|
|
449
|
|
509
|
450 u->accel = 1;
|
|
577
|
451
|
|
507
|
452 r->upstream = u;
|
|
|
453
|
|
|
454 rc = ngx_http_read_client_request_body(r, ngx_http_upstream_init);
|
|
|
455
|
|
|
456 if (rc >= NGX_HTTP_SPECIAL_RESPONSE) {
|
|
|
457 return rc;
|
|
|
458 }
|
|
|
459
|
|
|
460 return NGX_DONE;
|
|
|
461 }
|
|
|
462
|
|
|
463
|
|
|
464 static ngx_int_t
|
|
|
465 ngx_http_proxy_create_request(ngx_http_request_t *r)
|
|
|
466 {
|
|
577
|
467 size_t len, loc_len, body_len;
|
|
509
|
468 uintptr_t escape;
|
|
|
469 ngx_buf_t *b;
|
|
649
|
470 ngx_str_t method;
|
|
|
471 ngx_uint_t i, unparsed_uri;
|
|
509
|
472 ngx_chain_t *cl, *body;
|
|
|
473 ngx_list_part_t *part;
|
|
|
474 ngx_table_elt_t *header;
|
|
|
475 ngx_http_upstream_t *u;
|
|
577
|
476 ngx_http_proxy_ctx_t *p;
|
|
509
|
477 ngx_http_script_code_pt code;
|
|
|
478 ngx_http_script_engine_t e, le;
|
|
|
479 ngx_http_proxy_loc_conf_t *plcf;
|
|
|
480 ngx_http_script_len_code_pt lcode;
|
|
507
|
481
|
|
|
482 u = r->upstream;
|
|
|
483
|
|
|
484 plcf = ngx_http_get_module_loc_conf(r, ngx_http_proxy_module);
|
|
|
485
|
|
577
|
486 p = ngx_pcalloc(r->pool, sizeof(ngx_http_proxy_ctx_t));
|
|
|
487 if (p == NULL) {
|
|
|
488 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
489 }
|
|
|
490
|
|
|
491 ngx_http_set_ctx(r, p, ngx_http_proxy_module);
|
|
|
492
|
|
507
|
493 len = sizeof(ngx_http_proxy_version) - 1 + sizeof(CRLF) - 1;
|
|
|
494
|
|
561
|
495 if (u->method.len) {
|
|
|
496 /* HEAD was changed to GET to cache response */
|
|
|
497 method = u->method;
|
|
|
498 method.len++;
|
|
|
499
|
|
|
500 } else if (plcf->method.len) {
|
|
|
501 method = plcf->method;
|
|
|
502
|
|
507
|
503 } else {
|
|
561
|
504 method = r->method_name;
|
|
|
505 method.len++;
|
|
507
|
506 }
|
|
|
507
|
|
561
|
508 len += method.len + u->conf->uri.len;
|
|
|
509
|
|
507
|
510 escape = 0;
|
|
509
|
511
|
|
627
|
512 loc_len = (r->valid_location && u->conf->uri.len) ? u->conf->location.len:
|
|
|
513 0;
|
|
509
|
514
|
|
609
|
515 if (u->conf->uri.len == 0 && r->valid_unparsed_uri && r == r->main) {
|
|
|
516 unparsed_uri = 1;
|
|
539
|
517 len += r->unparsed_uri.len;
|
|
507
|
518
|
|
|
519 } else {
|
|
609
|
520 unparsed_uri = 0;
|
|
507
|
521 if (r->quoted_uri) {
|
|
509
|
522 escape = 2 * ngx_escape_uri(NULL, r->uri.data + loc_len,
|
|
|
523 r->uri.len - loc_len, NGX_ESCAPE_URI);
|
|
507
|
524 }
|
|
|
525
|
|
509
|
526 len += r->uri.len - loc_len + escape + sizeof("?") - 1 + r->args.len;
|
|
507
|
527 }
|
|
|
528
|
|
573
|
529 ngx_http_script_flush_no_cachable_variables(r, plcf->flushes);
|
|
|
530
|
|
577
|
531 if (plcf->body_set_len) {
|
|
|
532 le.ip = plcf->body_set_len->elts;
|
|
|
533 le.request = r;
|
|
|
534 le.flushed = 1;
|
|
|
535 body_len = 0;
|
|
|
536
|
|
|
537 while (*(uintptr_t *) le.ip) {
|
|
|
538 lcode = *(ngx_http_script_len_code_pt *) le.ip;
|
|
|
539 body_len += lcode(&le);
|
|
|
540 }
|
|
|
541
|
|
|
542 p->internal_body_length = body_len;
|
|
|
543 len += body_len;
|
|
|
544 }
|
|
|
545
|
|
509
|
546 le.ip = plcf->headers_set_len->elts;
|
|
|
547 le.request = r;
|
|
573
|
548 le.flushed = 1;
|
|
507
|
549
|
|
509
|
550 while (*(uintptr_t *) le.ip) {
|
|
|
551 while (*(uintptr_t *) le.ip) {
|
|
|
552 lcode = *(ngx_http_script_len_code_pt *) le.ip;
|
|
|
553 len += lcode(&le);
|
|
|
554 }
|
|
|
555 le.ip += sizeof(uintptr_t);
|
|
507
|
556 }
|
|
|
557
|
|
|
558
|
|
509
|
559 if (plcf->upstream.pass_request_headers) {
|
|
|
560 part = &r->headers_in.headers.part;
|
|
|
561 header = part->elts;
|
|
|
562
|
|
|
563 for (i = 0; /* void */; i++) {
|
|
507
|
564
|
|
509
|
565 if (i >= part->nelts) {
|
|
|
566 if (part->next == NULL) {
|
|
|
567 break;
|
|
|
568 }
|
|
|
569
|
|
|
570 part = part->next;
|
|
|
571 header = part->elts;
|
|
577
|
572 i = 0;
|
|
507
|
573 }
|
|
|
574
|
|
649
|
575 if (ngx_hash_find(&plcf->headers_set_hash, header[i].hash,
|
|
|
576 header[i].lowcase_key, header[i].key.len))
|
|
509
|
577 {
|
|
|
578 continue;
|
|
|
579 }
|
|
|
580
|
|
|
581 len += header[i].key.len + sizeof(": ") - 1
|
|
|
582 + header[i].value.len + sizeof(CRLF) - 1;
|
|
507
|
583 }
|
|
509
|
584 }
|
|
507
|
585
|
|
|
586
|
|
|
587 b = ngx_create_temp_buf(r->pool, len);
|
|
|
588 if (b == NULL) {
|
|
|
589 return NGX_ERROR;
|
|
|
590 }
|
|
|
591
|
|
|
592 cl = ngx_alloc_chain_link(r->pool);
|
|
|
593 if (cl == NULL) {
|
|
|
594 return NGX_ERROR;
|
|
|
595 }
|
|
|
596
|
|
|
597 cl->buf = b;
|
|
|
598
|
|
|
599
|
|
|
600 /* the request line */
|
|
|
601
|
|
573
|
602 b->last = ngx_copy(b->last, method.data, method.len);
|
|
507
|
603
|
|
555
|
604 u->uri.data = b->last;
|
|
|
605
|
|
609
|
606 if (unparsed_uri) {
|
|
573
|
607 b->last = ngx_copy(b->last, r->unparsed_uri.data, r->unparsed_uri.len);
|
|
|
608
|
|
507
|
609 } else {
|
|
555
|
610 if (r->valid_location) {
|
|
573
|
611 b->last = ngx_copy(b->last, u->conf->uri.data, u->conf->uri.len);
|
|
555
|
612 }
|
|
551
|
613
|
|
507
|
614 if (escape) {
|
|
509
|
615 ngx_escape_uri(b->last, r->uri.data + loc_len,
|
|
|
616 r->uri.len - loc_len, NGX_ESCAPE_URI);
|
|
|
617 b->last += r->uri.len - loc_len + escape;
|
|
507
|
618
|
|
577
|
619 } else {
|
|
573
|
620 b->last = ngx_copy(b->last, r->uri.data + loc_len,
|
|
|
621 r->uri.len - loc_len);
|
|
507
|
622 }
|
|
|
623
|
|
|
624 if (r->args.len > 0) {
|
|
|
625 *b->last++ = '?';
|
|
573
|
626 b->last = ngx_copy(b->last, r->args.data, r->args.len);
|
|
507
|
627 }
|
|
|
628 }
|
|
|
629
|
|
555
|
630 u->uri.len = b->last - u->uri.data;
|
|
|
631
|
|
507
|
632 b->last = ngx_cpymem(b->last, ngx_http_proxy_version,
|
|
|
633 sizeof(ngx_http_proxy_version) - 1);
|
|
|
634
|
|
577
|
635 ngx_memzero(&e, sizeof(ngx_http_script_engine_t));
|
|
507
|
636
|
|
|
637 e.ip = plcf->headers_set->elts;
|
|
|
638 e.pos = b->last;
|
|
509
|
639 e.request = r;
|
|
573
|
640 e.flushed = 1;
|
|
507
|
641
|
|
509
|
642 le.ip = plcf->headers_set_len->elts;
|
|
|
643
|
|
|
644 while (*(uintptr_t *) le.ip) {
|
|
|
645 lcode = *(ngx_http_script_len_code_pt *) le.ip;
|
|
515
|
646
|
|
|
647 /* skip the header line name length */
|
|
|
648 (void) lcode(&le);
|
|
509
|
649
|
|
|
650 if (*(ngx_http_script_len_code_pt *) le.ip) {
|
|
|
651
|
|
|
652 for (len = 0; *(uintptr_t *) le.ip; len += lcode(&le)) {
|
|
|
653 lcode = *(ngx_http_script_len_code_pt *) le.ip;
|
|
|
654 }
|
|
|
655
|
|
|
656 e.skip = (len == sizeof(CRLF) - 1) ? 1 : 0;
|
|
|
657
|
|
|
658 } else {
|
|
|
659 e.skip = 0;
|
|
|
660 }
|
|
|
661
|
|
|
662 le.ip += sizeof(uintptr_t);
|
|
|
663
|
|
|
664 while (*(uintptr_t *) e.ip) {
|
|
|
665 code = *(ngx_http_script_code_pt *) e.ip;
|
|
|
666 code((ngx_http_script_engine_t *) &e);
|
|
577
|
667 }
|
|
509
|
668 e.ip += sizeof(uintptr_t);
|
|
507
|
669 }
|
|
|
670
|
|
|
671 b->last = e.pos;
|
|
|
672
|
|
|
673
|
|
509
|
674 if (plcf->upstream.pass_request_headers) {
|
|
|
675 part = &r->headers_in.headers.part;
|
|
|
676 header = part->elts;
|
|
577
|
677
|
|
509
|
678 for (i = 0; /* void */; i++) {
|
|
507
|
679
|
|
509
|
680 if (i >= part->nelts) {
|
|
|
681 if (part->next == NULL) {
|
|
|
682 break;
|
|
|
683 }
|
|
|
684
|
|
|
685 part = part->next;
|
|
|
686 header = part->elts;
|
|
577
|
687 i = 0;
|
|
507
|
688 }
|
|
|
689
|
|
649
|
690 if (ngx_hash_find(&plcf->headers_set_hash, header[i].hash,
|
|
|
691 header[i].lowcase_key, header[i].key.len))
|
|
509
|
692 {
|
|
|
693 continue;
|
|
|
694 }
|
|
507
|
695
|
|
573
|
696 b->last = ngx_copy(b->last, header[i].key.data, header[i].key.len);
|
|
507
|
697
|
|
509
|
698 *b->last++ = ':'; *b->last++ = ' ';
|
|
507
|
699
|
|
573
|
700 b->last = ngx_copy(b->last, header[i].value.data,
|
|
|
701 header[i].value.len);
|
|
507
|
702
|
|
509
|
703 *b->last++ = CR; *b->last++ = LF;
|
|
507
|
704
|
|
509
|
705 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
706 "http proxy header: \"%V: %V\"",
|
|
|
707 &header[i].key, &header[i].value);
|
|
|
708 }
|
|
507
|
709 }
|
|
|
710
|
|
577
|
711
|
|
507
|
712 /* add "\r\n" at the header end */
|
|
|
713 *b->last++ = CR; *b->last++ = LF;
|
|
|
714
|
|
577
|
715 if (plcf->body_set) {
|
|
|
716 e.ip = plcf->body_set->elts;
|
|
|
717 e.pos = b->last;
|
|
|
718
|
|
|
719 while (*(uintptr_t *) e.ip) {
|
|
|
720 code = *(ngx_http_script_code_pt *) e.ip;
|
|
|
721 code((ngx_http_script_engine_t *) &e);
|
|
|
722 }
|
|
579
|
723
|
|
|
724 b->last = e.pos;
|
|
577
|
725 }
|
|
|
726
|
|
507
|
727 #if (NGX_DEBUG)
|
|
|
728 {
|
|
|
729 ngx_str_t s;
|
|
|
730
|
|
|
731 s.len = b->last - b->pos;
|
|
|
732 s.data = b->pos;
|
|
|
733 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
734 "http proxy header:\n\"%V\"", &s);
|
|
|
735 }
|
|
|
736 #endif
|
|
|
737
|
|
577
|
738 if (plcf->body_set == NULL && plcf->upstream.pass_request_body) {
|
|
509
|
739
|
|
|
740 body = u->request_bufs;
|
|
|
741 u->request_bufs = cl;
|
|
|
742
|
|
|
743 while (body) {
|
|
|
744 b = ngx_alloc_buf(r->pool);
|
|
|
745 if (b == NULL) {
|
|
|
746 return NGX_ERROR;
|
|
|
747 }
|
|
|
748
|
|
|
749 ngx_memcpy(b, body->buf, sizeof(ngx_buf_t));
|
|
|
750
|
|
|
751 cl->next = ngx_alloc_chain_link(r->pool);
|
|
|
752 if (cl->next == NULL) {
|
|
|
753 return NGX_ERROR;
|
|
|
754 }
|
|
|
755
|
|
|
756 cl = cl->next;
|
|
|
757 cl->buf = b;
|
|
|
758
|
|
|
759 body = body->next;
|
|
|
760 }
|
|
|
761
|
|
611
|
762 b->flush = 1;
|
|
|
763
|
|
509
|
764 } else {
|
|
|
765 u->request_bufs = cl;
|
|
|
766 }
|
|
|
767
|
|
|
768 cl->next = NULL;
|
|
|
769
|
|
507
|
770 return NGX_OK;
|
|
|
771 }
|
|
|
772
|
|
|
773
|
|
|
774 static ngx_int_t
|
|
|
775 ngx_http_proxy_reinit_request(ngx_http_request_t *r)
|
|
|
776 {
|
|
509
|
777 ngx_http_proxy_ctx_t *p;
|
|
|
778
|
|
|
779 p = ngx_http_get_module_ctx(r, ngx_http_proxy_module);
|
|
|
780
|
|
|
781 if (p == NULL) {
|
|
|
782 return NGX_OK;
|
|
|
783 }
|
|
|
784
|
|
|
785 p->status = 0;
|
|
|
786 p->status_count = 0;
|
|
|
787 p->status_start = NULL;
|
|
|
788 p->status_end = NULL;
|
|
|
789
|
|
|
790 r->upstream->process_header = ngx_http_proxy_process_status_line;
|
|
|
791
|
|
|
792 return NGX_OK;
|
|
|
793 }
|
|
|
794
|
|
|
795
|
|
|
796 static ngx_int_t
|
|
|
797 ngx_http_proxy_process_status_line(ngx_http_request_t *r)
|
|
|
798 {
|
|
|
799 ngx_int_t rc;
|
|
|
800 ngx_http_upstream_t *u;
|
|
|
801 ngx_http_proxy_ctx_t *p;
|
|
|
802
|
|
|
803 p = ngx_http_get_module_ctx(r, ngx_http_proxy_module);
|
|
|
804
|
|
|
805 if (p == NULL) {
|
|
577
|
806 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
509
|
807 }
|
|
|
808
|
|
|
809 rc = ngx_http_proxy_parse_status_line(r, p);
|
|
|
810
|
|
|
811 if (rc == NGX_AGAIN) {
|
|
|
812 return rc;
|
|
|
813 }
|
|
|
814
|
|
|
815 u = r->upstream;
|
|
|
816
|
|
|
817 if (rc == NGX_HTTP_PROXY_PARSE_NO_HEADER) {
|
|
|
818 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
577
|
819 "upstream sent no valid HTTP/1.0 header");
|
|
509
|
820
|
|
619
|
821 #if 0
|
|
509
|
822 if (u->accel) {
|
|
|
823 return NGX_HTTP_UPSTREAM_INVALID_HEADER;
|
|
|
824 }
|
|
619
|
825 #endif
|
|
509
|
826
|
|
|
827 r->http_version = NGX_HTTP_VERSION_9;
|
|
|
828 p->status = NGX_HTTP_OK;
|
|
577
|
829
|
|
509
|
830 return NGX_OK;
|
|
|
831 }
|
|
|
832
|
|
529
|
833 u->headers_in.status_n = p->status;
|
|
509
|
834 u->state->status = p->status;
|
|
|
835
|
|
529
|
836 u->headers_in.status_line.len = p->status_end - p->status_start;
|
|
|
837 u->headers_in.status_line.data = ngx_palloc(r->pool,
|
|
|
838 u->headers_in.status_line.len);
|
|
|
839 if (u->headers_in.status_line.data == NULL) {
|
|
509
|
840 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
841 }
|
|
573
|
842
|
|
529
|
843 ngx_memcpy(u->headers_in.status_line.data, p->status_start,
|
|
|
844 u->headers_in.status_line.len);
|
|
509
|
845
|
|
|
846 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
847 "http proxy status %ui \"%V\"",
|
|
529
|
848 u->headers_in.status, &u->headers_in.status_line);
|
|
509
|
849
|
|
|
850 u->process_header = ngx_http_proxy_process_header;
|
|
|
851
|
|
|
852 return ngx_http_proxy_process_header(r);
|
|
|
853 }
|
|
|
854
|
|
|
855
|
|
|
856 static ngx_int_t
|
|
|
857 ngx_http_proxy_parse_status_line(ngx_http_request_t *r, ngx_http_proxy_ctx_t *p)
|
|
|
858 {
|
|
|
859 u_char ch;
|
|
|
860 u_char *pos;
|
|
|
861 ngx_http_upstream_t *u;
|
|
|
862 enum {
|
|
|
863 sw_start = 0,
|
|
|
864 sw_H,
|
|
|
865 sw_HT,
|
|
|
866 sw_HTT,
|
|
|
867 sw_HTTP,
|
|
|
868 sw_first_major_digit,
|
|
|
869 sw_major_digit,
|
|
|
870 sw_first_minor_digit,
|
|
|
871 sw_minor_digit,
|
|
|
872 sw_status,
|
|
|
873 sw_space_after_status,
|
|
|
874 sw_status_text,
|
|
|
875 sw_almost_done
|
|
577
|
876 } state;
|
|
509
|
877
|
|
|
878 u = r->upstream;
|
|
|
879
|
|
|
880 state = r->state;
|
|
|
881
|
|
581
|
882 for (pos = u->buffer.pos; pos < u->buffer.last; pos++) {
|
|
509
|
883 ch = *pos;
|
|
|
884
|
|
|
885 switch (state) {
|
|
|
886
|
|
|
887 /* "HTTP/" */
|
|
|
888 case sw_start:
|
|
|
889 switch (ch) {
|
|
577
|
890 case 'H':
|
|
509
|
891 state = sw_H;
|
|
|
892 break;
|
|
|
893 default:
|
|
|
894 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
|
895 }
|
|
|
896 break;
|
|
|
897
|
|
577
|
898 case sw_H:
|
|
509
|
899 switch (ch) {
|
|
577
|
900 case 'T':
|
|
509
|
901 state = sw_HT;
|
|
|
902 break;
|
|
|
903 default:
|
|
|
904 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
|
905 }
|
|
|
906 break;
|
|
|
907
|
|
|
908 case sw_HT:
|
|
|
909 switch (ch) {
|
|
577
|
910 case 'T':
|
|
509
|
911 state = sw_HTT;
|
|
|
912 break;
|
|
|
913 default:
|
|
|
914 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
|
915 }
|
|
|
916 break;
|
|
|
917
|
|
|
918 case sw_HTT:
|
|
|
919 switch (ch) {
|
|
577
|
920 case 'P':
|
|
509
|
921 state = sw_HTTP;
|
|
|
922 break;
|
|
|
923 default:
|
|
|
924 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
|
925 }
|
|
|
926 break;
|
|
|
927
|
|
|
928 case sw_HTTP:
|
|
|
929 switch (ch) {
|
|
577
|
930 case '/':
|
|
509
|
931 state = sw_first_major_digit;
|
|
|
932 break;
|
|
|
933 default:
|
|
|
934 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
|
935 }
|
|
|
936 break;
|
|
|
937
|
|
|
938 /* the first digit of major HTTP version */
|
|
|
939 case sw_first_major_digit:
|
|
|
940 if (ch < '1' || ch > '9') {
|
|
|
941 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
|
942 }
|
|
|
943
|
|
|
944 state = sw_major_digit;
|
|
|
945 break;
|
|
|
946
|
|
|
947 /* the major HTTP version or dot */
|
|
|
948 case sw_major_digit:
|
|
|
949 if (ch == '.') {
|
|
|
950 state = sw_first_minor_digit;
|
|
|
951 break;
|
|
|
952 }
|
|
|
953
|
|
|
954 if (ch < '0' || ch > '9') {
|
|
|
955 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
|
956 }
|
|
|
957
|
|
|
958 break;
|
|
|
959
|
|
|
960 /* the first digit of minor HTTP version */
|
|
|
961 case sw_first_minor_digit:
|
|
|
962 if (ch < '0' || ch > '9') {
|
|
|
963 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
|
964 }
|
|
|
965
|
|
|
966 state = sw_minor_digit;
|
|
|
967 break;
|
|
|
968
|
|
|
969 /* the minor HTTP version or the end of the request line */
|
|
|
970 case sw_minor_digit:
|
|
|
971 if (ch == ' ') {
|
|
|
972 state = sw_status;
|
|
|
973 break;
|
|
|
974 }
|
|
|
975
|
|
|
976 if (ch < '0' || ch > '9') {
|
|
|
977 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
|
978 }
|
|
|
979
|
|
|
980 break;
|
|
|
981
|
|
|
982 /* HTTP status code */
|
|
|
983 case sw_status:
|
|
619
|
984 if (ch == ' ') {
|
|
|
985 break;
|
|
|
986 }
|
|
|
987
|
|
509
|
988 if (ch < '0' || ch > '9') {
|
|
|
989 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
|
990 }
|
|
|
991
|
|
|
992 p->status = p->status * 10 + ch - '0';
|
|
|
993
|
|
|
994 if (++p->status_count == 3) {
|
|
|
995 state = sw_space_after_status;
|
|
|
996 p->status_start = pos - 2;
|
|
|
997 }
|
|
|
998
|
|
|
999 break;
|
|
|
1000
|
|
|
1001 /* space or end of line */
|
|
|
1002 case sw_space_after_status:
|
|
|
1003 switch (ch) {
|
|
577
|
1004 case ' ':
|
|
509
|
1005 state = sw_status_text;
|
|
|
1006 break;
|
|
|
1007 case '.': /* IIS may send 403.1, 403.2, etc */
|
|
|
1008 state = sw_status_text;
|
|
|
1009 break;
|
|
|
1010 case CR:
|
|
|
1011 state = sw_almost_done;
|
|
|
1012 break;
|
|
|
1013 case LF:
|
|
|
1014 goto done;
|
|
|
1015 default:
|
|
|
1016 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
|
1017 }
|
|
|
1018 break;
|
|
|
1019
|
|
|
1020 /* any text until end of line */
|
|
|
1021 case sw_status_text:
|
|
|
1022 switch (ch) {
|
|
|
1023 case CR:
|
|
|
1024 state = sw_almost_done;
|
|
|
1025
|
|
|
1026 break;
|
|
|
1027 case LF:
|
|
|
1028 goto done;
|
|
|
1029 }
|
|
|
1030 break;
|
|
|
1031
|
|
527
|
1032 /* end of status line */
|
|
509
|
1033 case sw_almost_done:
|
|
|
1034 p->status_end = pos - 1;
|
|
|
1035 switch (ch) {
|
|
|
1036 case LF:
|
|
|
1037 goto done;
|
|
|
1038 default:
|
|
|
1039 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
|
1040 }
|
|
|
1041 }
|
|
|
1042 }
|
|
|
1043
|
|
581
|
1044 u->buffer.pos = pos;
|
|
509
|
1045 r->state = state;
|
|
|
1046
|
|
|
1047 return NGX_AGAIN;
|
|
|
1048
|
|
|
1049 done:
|
|
|
1050
|
|
581
|
1051 u->buffer.pos = pos + 1;
|
|
509
|
1052
|
|
|
1053 if (p->status_end == NULL) {
|
|
|
1054 p->status_end = pos;
|
|
|
1055 }
|
|
|
1056
|
|
|
1057 r->state = sw_start;
|
|
|
1058
|
|
507
|
1059 return NGX_OK;
|
|
|
1060 }
|
|
|
1061
|
|
|
1062
|
|
|
1063 static ngx_int_t
|
|
|
1064 ngx_http_proxy_process_header(ngx_http_request_t *r)
|
|
|
1065 {
|
|
509
|
1066 ngx_int_t rc;
|
|
649
|
1067 ngx_uint_t i;
|
|
509
|
1068 ngx_table_elt_t *h;
|
|
|
1069 ngx_http_upstream_header_t *hh;
|
|
|
1070 ngx_http_upstream_main_conf_t *umcf;
|
|
|
1071
|
|
|
1072 umcf = ngx_http_get_module_main_conf(r, ngx_http_upstream_module);
|
|
|
1073
|
|
|
1074 for ( ;; ) {
|
|
|
1075
|
|
581
|
1076 rc = ngx_http_parse_header_line(r, &r->upstream->buffer);
|
|
509
|
1077
|
|
|
1078 if (rc == NGX_OK) {
|
|
|
1079
|
|
|
1080 /* a header line has been parsed successfully */
|
|
507
|
1081
|
|
509
|
1082 h = ngx_list_push(&r->upstream->headers_in.headers);
|
|
|
1083 if (h == NULL) {
|
|
|
1084 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
1085 }
|
|
|
1086
|
|
|
1087 h->hash = r->header_hash;
|
|
|
1088
|
|
|
1089 h->key.len = r->header_name_end - r->header_name_start;
|
|
|
1090 h->value.len = r->header_end - r->header_start;
|
|
|
1091
|
|
|
1092 h->key.data = ngx_palloc(r->pool,
|
|
649
|
1093 h->key.len + 1 + h->value.len + 1 + h->key.len);
|
|
509
|
1094 if (h->key.data == NULL) {
|
|
|
1095 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
1096 }
|
|
|
1097
|
|
|
1098 h->value.data = h->key.data + h->key.len + 1;
|
|
649
|
1099 h->lowcase_key = h->key.data + h->key.len + 1 + h->value.len + 1;
|
|
507
|
1100
|
|
509
|
1101 ngx_cpystrn(h->key.data, r->header_name_start, h->key.len + 1);
|
|
|
1102 ngx_cpystrn(h->value.data, r->header_start, h->value.len + 1);
|
|
|
1103
|
|
649
|
1104 if (h->key.len == r->lowcase_index) {
|
|
|
1105 ngx_memcpy(h->lowcase_key, r->lowcase_header, h->key.len);
|
|
|
1106
|
|
|
1107 } else {
|
|
|
1108 for (i = 0; i < h->key.len; i++) {
|
|
|
1109 h->lowcase_key[i] = ngx_tolower(h->lowcase_key[i]);
|
|
509
|
1110 }
|
|
|
1111 }
|
|
|
1112
|
|
649
|
1113 hh = ngx_hash_find(&umcf->headers_in_hash, h->hash,
|
|
|
1114 h->lowcase_key, h->key.len);
|
|
|
1115
|
|
|
1116 if (hh && hh->handler(r, h, hh->offset) != NGX_OK) {
|
|
|
1117 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
1118 }
|
|
|
1119
|
|
509
|
1120 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1121 "http proxy header: \"%V: %V\"",
|
|
|
1122 &h->key, &h->value);
|
|
|
1123
|
|
|
1124 continue;
|
|
|
1125 }
|
|
|
1126
|
|
|
1127 if (rc == NGX_HTTP_PARSE_HEADER_DONE) {
|
|
|
1128
|
|
|
1129 /* a whole header has been parsed successfully */
|
|
|
1130
|
|
|
1131 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1132 "http proxy header done");
|
|
|
1133
|
|
649
|
1134 /*
|
|
|
1135 * if no "Server" and "Date" in header line,
|
|
|
1136 * then add the special empty headers
|
|
|
1137 */
|
|
|
1138
|
|
|
1139 if (r->upstream->headers_in.server == NULL) {
|
|
|
1140 h = ngx_list_push(&r->upstream->headers_in.headers);
|
|
|
1141 if (h == NULL) {
|
|
|
1142 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
1143 }
|
|
|
1144
|
|
|
1145 h->hash = ngx_hash(ngx_hash(ngx_hash(ngx_hash(
|
|
|
1146 ngx_hash('s', 'e'), 'r'), 'v'), 'e'), 'r');
|
|
|
1147
|
|
|
1148 h->key.len = sizeof("Server") - 1;
|
|
|
1149 h->key.data = (u_char *) "Server";
|
|
|
1150 h->value.len = 0;
|
|
|
1151 h->value.data = NULL;
|
|
|
1152 h->lowcase_key = (u_char *) "server";
|
|
|
1153 }
|
|
|
1154
|
|
|
1155 if (r->upstream->headers_in.date == NULL) {
|
|
|
1156 h = ngx_list_push(&r->upstream->headers_in.headers);
|
|
|
1157 if (h == NULL) {
|
|
|
1158 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
1159 }
|
|
|
1160
|
|
|
1161 h->hash = ngx_hash(ngx_hash(ngx_hash('d', 'a'), 't'), 'e');
|
|
|
1162
|
|
|
1163 h->key.len = sizeof("Date") - 1;
|
|
|
1164 h->key.data = (u_char *) "Date";
|
|
|
1165 h->value.len = 0;
|
|
|
1166 h->value.data = NULL;
|
|
|
1167 h->lowcase_key = (u_char *) "date";
|
|
|
1168 }
|
|
|
1169
|
|
509
|
1170 return NGX_OK;
|
|
|
1171 }
|
|
|
1172
|
|
521
|
1173 if (rc == NGX_AGAIN) {
|
|
|
1174 return NGX_AGAIN;
|
|
|
1175 }
|
|
|
1176
|
|
509
|
1177 /* there was error while a header line parsing */
|
|
|
1178
|
|
|
1179 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
619
|
1180 "upstream sent invalid header");
|
|
509
|
1181
|
|
|
1182 return NGX_HTTP_UPSTREAM_INVALID_HEADER;
|
|
|
1183 }
|
|
507
|
1184 }
|
|
|
1185
|
|
|
1186
|
|
|
1187 static void
|
|
|
1188 ngx_http_proxy_abort_request(ngx_http_request_t *r)
|
|
|
1189 {
|
|
|
1190 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1191 "abort http proxy request");
|
|
577
|
1192
|
|
507
|
1193 return;
|
|
|
1194 }
|
|
|
1195
|
|
|
1196
|
|
|
1197 static void
|
|
|
1198 ngx_http_proxy_finalize_request(ngx_http_request_t *r, ngx_int_t rc)
|
|
577
|
1199 {
|
|
507
|
1200 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1201 "finalize http proxy request");
|
|
|
1202
|
|
|
1203 return;
|
|
|
1204 }
|
|
|
1205
|
|
|
1206
|
|
573
|
1207 static ngx_int_t
|
|
|
1208 ngx_http_proxy_host_variable(ngx_http_request_t *r,
|
|
|
1209 ngx_http_variable_value_t *v, uintptr_t data)
|
|
507
|
1210 {
|
|
509
|
1211 ngx_http_proxy_loc_conf_t *plcf;
|
|
507
|
1212
|
|
509
|
1213 plcf = ngx_http_get_module_loc_conf(r, ngx_http_proxy_module);
|
|
507
|
1214
|
|
573
|
1215 v->len = plcf->host_header.len;
|
|
577
|
1216 v->valid = 1;
|
|
573
|
1217 v->no_cachable = 0;
|
|
|
1218 v->not_found = 0;
|
|
|
1219 v->data = plcf->host_header.data;
|
|
507
|
1220
|
|
573
|
1221 return NGX_OK;
|
|
507
|
1222 }
|
|
|
1223
|
|
|
1224
|
|
573
|
1225 static ngx_int_t
|
|
|
1226 ngx_http_proxy_port_variable(ngx_http_request_t *r,
|
|
|
1227 ngx_http_variable_value_t *v, uintptr_t data)
|
|
507
|
1228 {
|
|
|
1229 ngx_http_proxy_loc_conf_t *plcf;
|
|
|
1230
|
|
|
1231 plcf = ngx_http_get_module_loc_conf(r, ngx_http_proxy_module);
|
|
|
1232
|
|
573
|
1233 v->len = plcf->port_text.len;
|
|
577
|
1234 v->valid = 1;
|
|
573
|
1235 v->no_cachable = 0;
|
|
|
1236 v->not_found = 0;
|
|
|
1237 v->data = plcf->port_text.data;
|
|
509
|
1238
|
|
573
|
1239 return NGX_OK;
|
|
509
|
1240 }
|
|
|
1241
|
|
|
1242
|
|
573
|
1243 static ngx_int_t
|
|
509
|
1244 ngx_http_proxy_add_x_forwarded_for_variable(ngx_http_request_t *r,
|
|
573
|
1245 ngx_http_variable_value_t *v, uintptr_t data)
|
|
509
|
1246 {
|
|
573
|
1247 u_char *p;
|
|
509
|
1248
|
|
577
|
1249 v->valid = 1;
|
|
573
|
1250 v->no_cachable = 0;
|
|
|
1251 v->not_found = 0;
|
|
509
|
1252
|
|
|
1253 if (r->headers_in.x_forwarded_for == NULL) {
|
|
573
|
1254 v->len = r->connection->addr_text.len;
|
|
|
1255 v->data = r->connection->addr_text.data;
|
|
|
1256 return NGX_OK;
|
|
509
|
1257 }
|
|
|
1258
|
|
573
|
1259 v->len = r->headers_in.x_forwarded_for->value.len
|
|
|
1260 + sizeof(", ") - 1 + r->connection->addr_text.len;
|
|
509
|
1261
|
|
573
|
1262 p = ngx_palloc(r->pool, v->len);
|
|
509
|
1263 if (p == NULL) {
|
|
573
|
1264 return NGX_ERROR;
|
|
509
|
1265 }
|
|
|
1266
|
|
573
|
1267 v->data = p;
|
|
509
|
1268
|
|
573
|
1269 p = ngx_copy(p, r->headers_in.x_forwarded_for->value.data,
|
|
|
1270 r->headers_in.x_forwarded_for->value.len);
|
|
509
|
1271
|
|
|
1272 *p++ = ','; *p++ = ' ';
|
|
|
1273
|
|
|
1274 ngx_memcpy(p, r->connection->addr_text.data, r->connection->addr_text.len);
|
|
|
1275
|
|
573
|
1276 return NGX_OK;
|
|
509
|
1277 }
|
|
|
1278
|
|
|
1279
|
|
|
1280 static ngx_int_t
|
|
577
|
1281 ngx_http_proxy_internal_body_length_variable(ngx_http_request_t *r,
|
|
|
1282 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
1283 {
|
|
|
1284 ngx_http_proxy_ctx_t *p;
|
|
|
1285
|
|
|
1286 p = ngx_http_get_module_ctx(r, ngx_http_proxy_module);
|
|
|
1287
|
|
|
1288 if (p == NULL) {
|
|
|
1289 v->not_found = 1;
|
|
|
1290 return NGX_OK;
|
|
|
1291 }
|
|
|
1292
|
|
|
1293 v->valid = 1;
|
|
|
1294 v->no_cachable = 0;
|
|
|
1295 v->not_found = 0;
|
|
|
1296
|
|
|
1297 v->data = ngx_palloc(r->connection->pool, NGX_SIZE_T_LEN);
|
|
|
1298
|
|
|
1299 if (v->data == NULL) {
|
|
|
1300 return NGX_ERROR;
|
|
|
1301 }
|
|
|
1302
|
|
|
1303 v->len = ngx_sprintf(v->data, "%uz", p->internal_body_length) - v->data;
|
|
|
1304
|
|
|
1305 return NGX_OK;
|
|
|
1306 }
|
|
|
1307
|
|
|
1308
|
|
|
1309 static ngx_int_t
|
|
509
|
1310 ngx_http_proxy_rewrite_redirect(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1311 size_t prefix)
|
|
|
1312 {
|
|
|
1313 ngx_int_t rc;
|
|
|
1314 ngx_uint_t i;
|
|
|
1315 ngx_http_proxy_loc_conf_t *plcf;
|
|
|
1316 ngx_http_proxy_redirect_t *pr;
|
|
|
1317
|
|
|
1318 plcf = ngx_http_get_module_loc_conf(r, ngx_http_proxy_module);
|
|
|
1319
|
|
|
1320 pr = plcf->redirects->elts;
|
|
|
1321
|
|
|
1322 if (pr == NULL) {
|
|
|
1323 return NGX_DECLINED;
|
|
|
1324 }
|
|
|
1325
|
|
|
1326 for (i = 0; i < plcf->redirects->nelts; i++) {
|
|
605
|
1327 rc = pr[i].handler(r, h, prefix, &pr[i]);
|
|
509
|
1328
|
|
|
1329 if (rc != NGX_DECLINED) {
|
|
|
1330 return rc;
|
|
|
1331 }
|
|
|
1332 }
|
|
|
1333
|
|
|
1334 return NGX_DECLINED;
|
|
|
1335 }
|
|
|
1336
|
|
|
1337
|
|
|
1338 static ngx_int_t
|
|
|
1339 ngx_http_proxy_rewrite_redirect_text(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1340 size_t prefix, ngx_http_proxy_redirect_t *pr)
|
|
|
1341 {
|
|
|
1342 size_t len;
|
|
|
1343 u_char *data, *p;
|
|
|
1344
|
|
|
1345 if (pr->redirect.len > h->value.len - prefix
|
|
|
1346 || ngx_rstrncmp(h->value.data + prefix, pr->redirect.data,
|
|
|
1347 pr->redirect.len) != 0)
|
|
|
1348 {
|
|
|
1349 return NGX_DECLINED;
|
|
|
1350 }
|
|
|
1351
|
|
|
1352 len = prefix + pr->replacement.text.len + h->value.len - pr->redirect.len;
|
|
507
|
1353
|
|
509
|
1354 data = ngx_palloc(r->pool, len);
|
|
|
1355 if (data == NULL) {
|
|
|
1356 return NGX_ERROR;
|
|
|
1357 }
|
|
|
1358
|
|
|
1359 p = data;
|
|
|
1360
|
|
573
|
1361 p = ngx_copy(p, h->value.data, prefix);
|
|
509
|
1362
|
|
653
|
1363 if (pr->replacement.text.len) {
|
|
|
1364 p = ngx_copy(p, pr->replacement.text.data, pr->replacement.text.len);
|
|
|
1365 }
|
|
509
|
1366
|
|
|
1367 ngx_memcpy(p, h->value.data + prefix + pr->redirect.len,
|
|
|
1368 h->value.len - pr->redirect.len - prefix);
|
|
|
1369
|
|
|
1370 h->value.len = len;
|
|
|
1371 h->value.data = data;
|
|
|
1372
|
|
|
1373 return NGX_OK;
|
|
|
1374 }
|
|
|
1375
|
|
|
1376
|
|
|
1377 static ngx_int_t
|
|
|
1378 ngx_http_proxy_rewrite_redirect_vars(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1379 size_t prefix, ngx_http_proxy_redirect_t *pr)
|
|
|
1380 {
|
|
|
1381 size_t len;
|
|
|
1382 u_char *data, *p;
|
|
|
1383 ngx_http_script_code_pt code;
|
|
|
1384 ngx_http_script_engine_t e;
|
|
|
1385 ngx_http_script_len_code_pt lcode;
|
|
|
1386
|
|
|
1387 if (pr->redirect.len > h->value.len - prefix
|
|
|
1388 || ngx_rstrncmp(h->value.data + prefix, pr->redirect.data,
|
|
|
1389 pr->redirect.len) != 0)
|
|
|
1390 {
|
|
|
1391 return NGX_DECLINED;
|
|
|
1392 }
|
|
|
1393
|
|
|
1394 ngx_memzero(&e, sizeof(ngx_http_script_engine_t));
|
|
|
1395
|
|
|
1396 e.ip = pr->replacement.vars.lengths;
|
|
|
1397 e.request = r;
|
|
|
1398
|
|
|
1399 for (len = prefix; *(uintptr_t *) e.ip; len += lcode(&e)) {
|
|
|
1400 lcode = *(ngx_http_script_len_code_pt *) e.ip;
|
|
|
1401 }
|
|
|
1402
|
|
|
1403 data = ngx_palloc(r->pool, len);
|
|
|
1404 if (data == NULL) {
|
|
|
1405 return NGX_ERROR;
|
|
|
1406 }
|
|
|
1407
|
|
|
1408 p = data;
|
|
|
1409
|
|
573
|
1410 p = ngx_copy(p, h->value.data, prefix);
|
|
509
|
1411
|
|
|
1412 e.ip = pr->replacement.vars.values;
|
|
|
1413 e.pos = p;
|
|
|
1414
|
|
|
1415 while (*(uintptr_t *) e.ip) {
|
|
|
1416 code = *(ngx_http_script_code_pt *) e.ip;
|
|
|
1417 code(&e);
|
|
|
1418 }
|
|
|
1419
|
|
|
1420 h->value.len = len;
|
|
|
1421 h->value.data = data;
|
|
|
1422
|
|
|
1423 return NGX_OK;
|
|
|
1424 }
|
|
|
1425
|
|
|
1426
|
|
|
1427 static ngx_int_t
|
|
|
1428 ngx_http_proxy_add_variables(ngx_conf_t *cf)
|
|
|
1429 {
|
|
|
1430 ngx_http_variable_t *var, *v;
|
|
|
1431
|
|
|
1432 for (v = ngx_http_proxy_vars; v->name.len; v++) {
|
|
|
1433 var = ngx_http_add_variable(cf, &v->name, v->flags);
|
|
|
1434 if (var == NULL) {
|
|
|
1435 return NGX_ERROR;
|
|
|
1436 }
|
|
|
1437
|
|
637
|
1438 var->get_handler = v->get_handler;
|
|
509
|
1439 var->data = v->data;
|
|
|
1440 }
|
|
|
1441
|
|
|
1442 return NGX_OK;
|
|
507
|
1443 }
|
|
|
1444
|
|
|
1445
|
|
|
1446 static void *
|
|
|
1447 ngx_http_proxy_create_loc_conf(ngx_conf_t *cf)
|
|
|
1448 {
|
|
|
1449 ngx_http_proxy_loc_conf_t *conf;
|
|
|
1450
|
|
|
1451 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_proxy_loc_conf_t));
|
|
|
1452 if (conf == NULL) {
|
|
|
1453 return NGX_CONF_ERROR;
|
|
|
1454 }
|
|
|
1455
|
|
|
1456 /*
|
|
|
1457 * set by ngx_pcalloc():
|
|
|
1458 *
|
|
|
1459 * conf->upstream.bufs.num = 0;
|
|
|
1460 * conf->upstream.next_upstream = 0;
|
|
|
1461 * conf->upstream.temp_path = NULL;
|
|
649
|
1462 * conf->upstream.hide_headers_hash = { NULL, 0 };
|
|
|
1463 * conf->upstream.hide_headers = NULL;
|
|
|
1464 * conf->upstream.pass_headers = NULL;
|
|
509
|
1465 * conf->upstream.schema = { 0, NULL };
|
|
|
1466 * conf->upstream.uri = { 0, NULL };
|
|
|
1467 * conf->upstream.location = NULL;
|
|
|
1468 *
|
|
561
|
1469 * conf->method = NULL;
|
|
509
|
1470 * conf->headers_source = NULL;
|
|
|
1471 * conf->headers_set_len = NULL;
|
|
|
1472 * conf->headers_set = NULL;
|
|
|
1473 * conf->headers_set_hash = NULL;
|
|
577
|
1474 * conf->body_set_len = NULL;
|
|
|
1475 * conf->body_set = NULL;
|
|
|
1476 * conf->body_source = { 0, NULL };
|
|
509
|
1477 * conf->rewrite_locations = NULL;
|
|
507
|
1478 */
|
|
577
|
1479
|
|
581
|
1480 conf->upstream.buffering = NGX_CONF_UNSET;
|
|
629
|
1481 conf->upstream.ignore_client_abort = NGX_CONF_UNSET;
|
|
581
|
1482
|
|
507
|
1483 conf->upstream.connect_timeout = NGX_CONF_UNSET_MSEC;
|
|
|
1484 conf->upstream.send_timeout = NGX_CONF_UNSET_MSEC;
|
|
|
1485 conf->upstream.read_timeout = NGX_CONF_UNSET_MSEC;
|
|
|
1486
|
|
|
1487 conf->upstream.send_lowat = NGX_CONF_UNSET_SIZE;
|
|
581
|
1488 conf->upstream.buffer_size = NGX_CONF_UNSET_SIZE;
|
|
529
|
1489
|
|
|
1490 conf->upstream.busy_buffers_size_conf = NGX_CONF_UNSET_SIZE;
|
|
577
|
1491 conf->upstream.max_temp_file_size_conf = NGX_CONF_UNSET_SIZE;
|
|
529
|
1492 conf->upstream.temp_file_write_size_conf = NGX_CONF_UNSET_SIZE;
|
|
509
|
1493
|
|
561
|
1494 conf->upstream.max_fails = NGX_CONF_UNSET_UINT;
|
|
|
1495 conf->upstream.fail_timeout = NGX_CONF_UNSET;
|
|
|
1496
|
|
509
|
1497 conf->upstream.pass_request_headers = NGX_CONF_UNSET;
|
|
|
1498 conf->upstream.pass_request_body = NGX_CONF_UNSET;
|
|
561
|
1499
|
|
657
|
1500 conf->upstream.intercept_errors = NGX_CONF_UNSET;
|
|
507
|
1501
|
|
|
1502 /* "proxy_cyclic_temp_file" is disabled */
|
|
|
1503 conf->upstream.cyclic_temp_file = 0;
|
|
|
1504
|
|
509
|
1505 conf->redirect = NGX_CONF_UNSET;
|
|
649
|
1506 conf->upstream.change_buffering = 1;
|
|
507
|
1507
|
|
|
1508 return conf;
|
|
|
1509 }
|
|
|
1510
|
|
|
1511
|
|
|
1512 static char *
|
|
|
1513 ngx_http_proxy_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child)
|
|
|
1514 {
|
|
|
1515 ngx_http_proxy_loc_conf_t *prev = parent;
|
|
|
1516 ngx_http_proxy_loc_conf_t *conf = child;
|
|
|
1517
|
|
509
|
1518 u_char *p;
|
|
|
1519 size_t size;
|
|
|
1520 uintptr_t *code;
|
|
649
|
1521 ngx_str_t *header;
|
|
|
1522 ngx_uint_t i, j;
|
|
|
1523 ngx_array_t hide_headers;
|
|
|
1524 ngx_keyval_t *src, *s, *h;
|
|
|
1525 ngx_hash_key_t *hk;
|
|
|
1526 ngx_hash_init_t hash;
|
|
509
|
1527 ngx_http_proxy_redirect_t *pr;
|
|
|
1528 ngx_http_script_compile_t sc;
|
|
|
1529 ngx_http_script_copy_code_t *copy;
|
|
|
1530
|
|
581
|
1531 ngx_conf_merge_value(conf->upstream.buffering,
|
|
|
1532 prev->upstream.buffering, 1);
|
|
|
1533
|
|
629
|
1534 ngx_conf_merge_value(conf->upstream.ignore_client_abort,
|
|
|
1535 prev->upstream.ignore_client_abort, 0);
|
|
|
1536
|
|
507
|
1537 ngx_conf_merge_msec_value(conf->upstream.connect_timeout,
|
|
|
1538 prev->upstream.connect_timeout, 60000);
|
|
|
1539
|
|
|
1540 ngx_conf_merge_msec_value(conf->upstream.send_timeout,
|
|
|
1541 prev->upstream.send_timeout, 60000);
|
|
|
1542
|
|
|
1543 ngx_conf_merge_msec_value(conf->upstream.read_timeout,
|
|
|
1544 prev->upstream.read_timeout, 60000);
|
|
|
1545
|
|
|
1546 ngx_conf_merge_size_value(conf->upstream.send_lowat,
|
|
|
1547 prev->upstream.send_lowat, 0);
|
|
|
1548
|
|
581
|
1549 ngx_conf_merge_size_value(conf->upstream.buffer_size,
|
|
|
1550 prev->upstream.buffer_size,
|
|
507
|
1551 (size_t) ngx_pagesize);
|
|
|
1552
|
|
|
1553 ngx_conf_merge_bufs_value(conf->upstream.bufs, prev->upstream.bufs,
|
|
|
1554 8, ngx_pagesize);
|
|
|
1555
|
|
|
1556 if (conf->upstream.bufs.num < 2) {
|
|
577
|
1557 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
507
|
1558 "there must be at least 2 \"proxy_buffers\"");
|
|
|
1559 return NGX_CONF_ERROR;
|
|
|
1560 }
|
|
577
|
1561
|
|
507
|
1562
|
|
581
|
1563 size = conf->upstream.buffer_size;
|
|
577
|
1564 if (size < conf->upstream.bufs.size) {
|
|
507
|
1565 size = conf->upstream.bufs.size;
|
|
|
1566 }
|
|
|
1567
|
|
|
1568
|
|
529
|
1569 ngx_conf_merge_size_value(conf->upstream.busy_buffers_size_conf,
|
|
|
1570 prev->upstream.busy_buffers_size_conf,
|
|
507
|
1571 NGX_CONF_UNSET_SIZE);
|
|
|
1572
|
|
529
|
1573 if (conf->upstream.busy_buffers_size_conf == NGX_CONF_UNSET_SIZE) {
|
|
507
|
1574 conf->upstream.busy_buffers_size = 2 * size;
|
|
529
|
1575 } else {
|
|
|
1576 conf->upstream.busy_buffers_size =
|
|
|
1577 conf->upstream.busy_buffers_size_conf;
|
|
|
1578 }
|
|
577
|
1579
|
|
529
|
1580 if (conf->upstream.busy_buffers_size < size) {
|
|
507
|
1581 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1582 "\"proxy_busy_buffers_size\" must be equal or bigger than "
|
|
|
1583 "maximum of the value of \"proxy_header_buffer_size\" and "
|
|
|
1584 "one of the \"proxy_buffers\"");
|
|
|
1585
|
|
|
1586 return NGX_CONF_ERROR;
|
|
529
|
1587 }
|
|
507
|
1588
|
|
529
|
1589 if (conf->upstream.busy_buffers_size
|
|
|
1590 > (conf->upstream.bufs.num - 1) * conf->upstream.bufs.size)
|
|
507
|
1591 {
|
|
|
1592 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1593 "\"proxy_busy_buffers_size\" must be less than "
|
|
|
1594 "the size of all \"proxy_buffers\" minus one buffer");
|
|
|
1595
|
|
|
1596 return NGX_CONF_ERROR;
|
|
|
1597 }
|
|
529
|
1598
|
|
507
|
1599
|
|
529
|
1600 ngx_conf_merge_size_value(conf->upstream.temp_file_write_size_conf,
|
|
|
1601 prev->upstream.temp_file_write_size_conf,
|
|
507
|
1602 NGX_CONF_UNSET_SIZE);
|
|
|
1603
|
|
529
|
1604 if (conf->upstream.temp_file_write_size_conf == NGX_CONF_UNSET_SIZE) {
|
|
507
|
1605 conf->upstream.temp_file_write_size = 2 * size;
|
|
529
|
1606 } else {
|
|
|
1607 conf->upstream.temp_file_write_size =
|
|
|
1608 conf->upstream.temp_file_write_size_conf;
|
|
|
1609 }
|
|
577
|
1610
|
|
529
|
1611 if (conf->upstream.temp_file_write_size < size) {
|
|
507
|
1612 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1613 "\"proxy_temp_file_write_size\" must be equal or bigger than "
|
|
|
1614 "maximum of the value of \"proxy_header_buffer_size\" and "
|
|
|
1615 "one of the \"proxy_buffers\"");
|
|
|
1616
|
|
|
1617 return NGX_CONF_ERROR;
|
|
|
1618 }
|
|
|
1619
|
|
529
|
1620 ngx_conf_merge_size_value(conf->upstream.max_temp_file_size_conf,
|
|
|
1621 prev->upstream.max_temp_file_size_conf,
|
|
507
|
1622 NGX_CONF_UNSET_SIZE);
|
|
|
1623
|
|
529
|
1624 if (conf->upstream.max_temp_file_size_conf == NGX_CONF_UNSET_SIZE) {
|
|
507
|
1625 conf->upstream.max_temp_file_size = 1024 * 1024 * 1024;
|
|
529
|
1626 } else {
|
|
|
1627 conf->upstream.max_temp_file_size =
|
|
|
1628 conf->upstream.max_temp_file_size_conf;
|
|
|
1629 }
|
|
507
|
1630
|
|
529
|
1631 if (conf->upstream.max_temp_file_size != 0
|
|
|
1632 && conf->upstream.max_temp_file_size < size)
|
|
507
|
1633 {
|
|
|
1634 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
561
|
1635 "\"proxy_max_temp_file_size\" must be equal to zero to disable "
|
|
507
|
1636 "the temporary files usage or must be equal or bigger than "
|
|
561
|
1637 "maximum of the value of \"proxy_header_buffer_size\" and "
|
|
|
1638 "one of the \"proxy_buffers\"");
|
|
507
|
1639
|
|
|
1640 return NGX_CONF_ERROR;
|
|
|
1641 }
|
|
|
1642
|
|
529
|
1643
|
|
507
|
1644 ngx_conf_merge_bitmask_value(conf->upstream.next_upstream,
|
|
|
1645 prev->upstream.next_upstream,
|
|
|
1646 (NGX_CONF_BITMASK_SET
|
|
|
1647 |NGX_HTTP_UPSTREAM_FT_ERROR
|
|
|
1648 |NGX_HTTP_UPSTREAM_FT_TIMEOUT));
|
|
|
1649
|
|
561
|
1650 ngx_conf_merge_unsigned_value(conf->upstream.max_fails,
|
|
|
1651 prev->upstream.max_fails, 1);
|
|
|
1652
|
|
|
1653 ngx_conf_merge_sec_value(conf->upstream.fail_timeout,
|
|
|
1654 prev->upstream.fail_timeout, 10);
|
|
|
1655
|
|
651
|
1656 if (conf->upstream_peers && !conf->upstream_peers->balanced) {
|
|
|
1657 for (i = 0; i < conf->upstream_peers->peers->number; i++) {
|
|
|
1658 conf->upstream_peers->peers->peer[i].weight = 1;
|
|
|
1659 conf->upstream_peers->peers->peer[i].max_fails =
|
|
|
1660 conf->upstream.max_fails;
|
|
|
1661 conf->upstream_peers->peers->peer[i].fail_timeout =
|
|
|
1662 conf->upstream.fail_timeout;
|
|
561
|
1663 }
|
|
|
1664 }
|
|
|
1665
|
|
509
|
1666 ngx_conf_merge_path_value(conf->upstream.temp_path,
|
|
|
1667 prev->upstream.temp_path,
|
|
|
1668 NGX_HTTP_PROXY_TEMP_PATH, 1, 2, 0,
|
|
|
1669 ngx_garbage_collector_temp_handler, cf);
|
|
507
|
1670
|
|
561
|
1671 if (conf->method.len == 0) {
|
|
|
1672 conf->method = prev->method;
|
|
|
1673
|
|
|
1674 } else {
|
|
|
1675 conf->method.data[conf->method.len] = ' ';
|
|
|
1676 conf->method.len++;
|
|
509
|
1677 }
|
|
|
1678
|
|
|
1679 ngx_conf_merge_value(conf->upstream.pass_request_headers,
|
|
|
1680 prev->upstream.pass_request_headers, 1);
|
|
|
1681 ngx_conf_merge_value(conf->upstream.pass_request_body,
|
|
|
1682 prev->upstream.pass_request_body, 1);
|
|
|
1683
|
|
657
|
1684 ngx_conf_merge_value(conf->upstream.intercept_errors,
|
|
|
1685 prev->upstream.intercept_errors, 0);
|
|
509
|
1686
|
|
|
1687 ngx_conf_merge_value(conf->redirect, prev->redirect, 1);
|
|
|
1688
|
|
|
1689 if (conf->redirect) {
|
|
507
|
1690
|
|
509
|
1691 if (conf->redirects == NULL) {
|
|
|
1692 conf->redirects = prev->redirects;
|
|
|
1693 }
|
|
|
1694
|
|
|
1695 if (conf->redirects == NULL && conf->upstream.url.data) {
|
|
|
1696
|
|
|
1697 conf->redirects = ngx_array_create(cf->pool, 1,
|
|
|
1698 sizeof(ngx_http_proxy_redirect_t));
|
|
|
1699 if (conf->redirects == NULL) {
|
|
|
1700 return NGX_CONF_ERROR;
|
|
|
1701 }
|
|
|
1702
|
|
|
1703 pr = ngx_array_push(conf->redirects);
|
|
|
1704 if (pr == NULL) {
|
|
|
1705 return NGX_CONF_ERROR;
|
|
|
1706 }
|
|
|
1707
|
|
|
1708 pr->handler = ngx_http_proxy_rewrite_redirect_text;
|
|
|
1709 pr->redirect = conf->upstream.url;
|
|
653
|
1710
|
|
|
1711 if (conf->upstream.uri.len) {
|
|
|
1712 pr->replacement.text = conf->upstream.location;
|
|
|
1713
|
|
|
1714 } else {
|
|
|
1715 pr->replacement.text.len = 0;
|
|
|
1716 pr->replacement.text.data = NULL;
|
|
|
1717 }
|
|
509
|
1718 }
|
|
|
1719 }
|
|
|
1720
|
|
649
|
1721 if (conf->upstream.hide_headers == NULL
|
|
|
1722 && conf->upstream.pass_headers == NULL)
|
|
|
1723 {
|
|
|
1724 conf->upstream.hide_headers = prev->upstream.hide_headers;
|
|
|
1725 conf->upstream.pass_headers = prev->upstream.pass_headers;
|
|
|
1726 conf->upstream.hide_headers_hash = prev->upstream.hide_headers_hash;
|
|
|
1727
|
|
|
1728 if (conf->upstream.hide_headers_hash.buckets) {
|
|
|
1729 goto peers;
|
|
|
1730 }
|
|
|
1731
|
|
|
1732 } else {
|
|
|
1733 if (conf->upstream.hide_headers == NULL) {
|
|
|
1734 conf->upstream.hide_headers = prev->upstream.hide_headers;
|
|
|
1735 }
|
|
|
1736
|
|
|
1737 if (conf->upstream.pass_headers == NULL) {
|
|
|
1738 conf->upstream.pass_headers = prev->upstream.pass_headers;
|
|
|
1739 }
|
|
|
1740 }
|
|
|
1741
|
|
|
1742 if (ngx_array_init(&hide_headers, cf->temp_pool, 4, sizeof(ngx_hash_key_t))
|
|
|
1743 != NGX_OK)
|
|
|
1744 {
|
|
|
1745 return NGX_CONF_ERROR;
|
|
|
1746 }
|
|
|
1747
|
|
|
1748 for (header = ngx_http_proxy_hide_headers; header->len; header++) {
|
|
|
1749 hk = ngx_array_push(&hide_headers);
|
|
|
1750 if (hk == NULL) {
|
|
|
1751 return NGX_CONF_ERROR;
|
|
|
1752 }
|
|
|
1753
|
|
|
1754 hk->key = *header;
|
|
|
1755 hk->key_hash = ngx_hash_key_lc(header->data, header->len);
|
|
|
1756 hk->value = (void *) 1;
|
|
|
1757 }
|
|
|
1758
|
|
|
1759 if (conf->upstream.hide_headers) {
|
|
|
1760
|
|
|
1761 header = conf->upstream.hide_headers->elts;
|
|
|
1762
|
|
|
1763 for (i = 0; i < conf->upstream.hide_headers->nelts; i++) {
|
|
|
1764
|
|
|
1765 hk = hide_headers.elts;
|
|
|
1766
|
|
|
1767 for (j = 0; j < hide_headers.nelts; j++) {
|
|
|
1768 if (ngx_strcasecmp(header[i].data, hk[j].key.data) == 0) {
|
|
|
1769 goto exist;
|
|
|
1770 }
|
|
|
1771 }
|
|
|
1772
|
|
|
1773 hk = ngx_array_push(&hide_headers);
|
|
|
1774 if (hk == NULL) {
|
|
|
1775 return NGX_CONF_ERROR;
|
|
|
1776 }
|
|
|
1777
|
|
|
1778 hk->key = header[i];
|
|
|
1779 hk->key_hash = ngx_hash_key_lc(header[i].data, header[i].len);
|
|
|
1780 hk->value = (void *) 1;
|
|
|
1781
|
|
|
1782 exist:
|
|
|
1783
|
|
|
1784 continue;
|
|
|
1785 }
|
|
|
1786 }
|
|
|
1787
|
|
|
1788 if (conf->upstream.pass_headers) {
|
|
|
1789
|
|
|
1790 hk = hide_headers.elts;
|
|
|
1791 header = conf->upstream.pass_headers->elts;
|
|
|
1792
|
|
|
1793 for (i = 0; i < conf->upstream.pass_headers->nelts; i++) {
|
|
|
1794 for (j = 0; j < hide_headers.nelts; j++) {
|
|
|
1795
|
|
|
1796 if (hk[j].key.data == NULL) {
|
|
|
1797 continue;
|
|
|
1798 }
|
|
|
1799
|
|
|
1800 if (ngx_strcasecmp(header[i].data, hk[j].key.data) == 0) {
|
|
|
1801 hk[j].key.data = NULL;
|
|
|
1802 break;
|
|
|
1803 }
|
|
|
1804 }
|
|
|
1805 }
|
|
|
1806 }
|
|
|
1807
|
|
|
1808 hash.hash = &conf->upstream.hide_headers_hash;
|
|
|
1809 hash.key = ngx_hash_key_lc;
|
|
|
1810 hash.max_size = 512;
|
|
|
1811 hash.bucket_size = ngx_cacheline_size;
|
|
|
1812 hash.name = "proxy_hide_headers_hash";
|
|
|
1813 hash.pool = cf->pool;
|
|
|
1814 hash.temp_pool = NULL;
|
|
|
1815
|
|
|
1816 if (ngx_hash_init(&hash, hide_headers.elts, hide_headers.nelts) != NGX_OK) {
|
|
|
1817 return NGX_CONF_ERROR;
|
|
|
1818 }
|
|
|
1819
|
|
|
1820 peers:
|
|
507
|
1821
|
|
651
|
1822 if (conf->upstream_peers == NULL) {
|
|
|
1823 conf->upstream_peers = prev->upstream_peers;
|
|
629
|
1824
|
|
|
1825 conf->host_header = prev->host_header;
|
|
|
1826 conf->port_text = prev->port_text;
|
|
|
1827 conf->upstream.schema = prev->upstream.schema;
|
|
507
|
1828 }
|
|
|
1829
|
|
577
|
1830
|
|
|
1831 if (conf->body_source.data == NULL) {
|
|
|
1832 conf->body_source = prev->body_source;
|
|
|
1833 conf->body_set_len = prev->body_set_len;
|
|
|
1834 conf->body_set = prev->body_set;
|
|
|
1835 }
|
|
|
1836
|
|
579
|
1837 if (conf->body_source.data && conf->body_set_len == NULL) {
|
|
577
|
1838
|
|
|
1839 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t));
|
|
|
1840
|
|
|
1841 sc.cf = cf;
|
|
|
1842 sc.source = &conf->body_source;
|
|
|
1843 sc.flushes = &conf->flushes;
|
|
|
1844 sc.lengths = &conf->body_set_len;
|
|
|
1845 sc.values = &conf->body_set;
|
|
|
1846 sc.complete_lengths = 1;
|
|
|
1847 sc.complete_values = 1;
|
|
|
1848
|
|
|
1849 if (ngx_http_script_compile(&sc) != NGX_OK) {
|
|
|
1850 return NGX_CONF_ERROR;
|
|
|
1851 }
|
|
|
1852
|
|
|
1853 if (conf->headers_source == NULL) {
|
|
|
1854 conf->headers_source = ngx_array_create(cf->pool, 4,
|
|
649
|
1855 sizeof(ngx_keyval_t));
|
|
577
|
1856 if (conf->headers_source == NULL) {
|
|
|
1857 return NGX_CONF_ERROR;
|
|
|
1858 }
|
|
|
1859 }
|
|
|
1860
|
|
|
1861 s = ngx_array_push(conf->headers_source);
|
|
|
1862 if (s == NULL) {
|
|
|
1863 return NGX_CONF_ERROR;
|
|
|
1864 }
|
|
|
1865
|
|
|
1866 s->key.len = sizeof("Content-Length") - 1;
|
|
|
1867 s->key.data = (u_char *) "Content-Length";
|
|
|
1868 s->value.len = sizeof("$proxy_internal_body_length") - 1;
|
|
|
1869 s->value.data = (u_char *) "$proxy_internal_body_length";
|
|
|
1870 }
|
|
|
1871
|
|
|
1872
|
|
509
|
1873 if (conf->headers_source == NULL) {
|
|
573
|
1874 conf->flushes = prev->flushes;
|
|
507
|
1875 conf->headers_set_len = prev->headers_set_len;
|
|
|
1876 conf->headers_set = prev->headers_set;
|
|
|
1877 conf->headers_set_hash = prev->headers_set_hash;
|
|
573
|
1878 conf->headers_source = prev->headers_source;
|
|
507
|
1879 }
|
|
|
1880
|
|
649
|
1881 if (conf->headers_set_hash.buckets) {
|
|
509
|
1882 return NGX_CONF_OK;
|
|
|
1883 }
|
|
|
1884
|
|
|
1885
|
|
649
|
1886 conf->headers_names = ngx_array_create(cf->pool, 4, sizeof(ngx_hash_key_t));
|
|
509
|
1887 if (conf->headers_names == NULL) {
|
|
|
1888 return NGX_CONF_ERROR;
|
|
|
1889 }
|
|
|
1890
|
|
|
1891 if (conf->headers_source == NULL) {
|
|
|
1892 conf->headers_source = ngx_array_create(cf->pool, 4,
|
|
649
|
1893 sizeof(ngx_keyval_t));
|
|
509
|
1894 if (conf->headers_source == NULL) {
|
|
|
1895 return NGX_CONF_ERROR;
|
|
|
1896 }
|
|
|
1897 }
|
|
507
|
1898
|
|
509
|
1899 conf->headers_set_len = ngx_array_create(cf->pool, 64, 1);
|
|
|
1900 if (conf->headers_set_len == NULL) {
|
|
|
1901 return NGX_CONF_ERROR;
|
|
|
1902 }
|
|
|
1903
|
|
|
1904 conf->headers_set = ngx_array_create(cf->pool, 512, 1);
|
|
|
1905 if (conf->headers_set == NULL) {
|
|
|
1906 return NGX_CONF_ERROR;
|
|
|
1907 }
|
|
|
1908
|
|
|
1909
|
|
|
1910 src = conf->headers_source->elts;
|
|
|
1911
|
|
|
1912 for (h = ngx_http_proxy_headers; h->key.len; h++) {
|
|
|
1913
|
|
|
1914 for (i = 0; i < conf->headers_source->nelts; i++) {
|
|
|
1915 if (ngx_strcasecmp(h->key.data, src[i].key.data) == 0) {
|
|
|
1916 goto next;
|
|
507
|
1917 }
|
|
|
1918 }
|
|
|
1919
|
|
509
|
1920 s = ngx_array_push(conf->headers_source);
|
|
|
1921 if (s == NULL) {
|
|
507
|
1922 return NGX_CONF_ERROR;
|
|
|
1923 }
|
|
|
1924
|
|
509
|
1925 *s = *h;
|
|
507
|
1926
|
|
517
|
1927 src = conf->headers_source->elts;
|
|
|
1928
|
|
509
|
1929 next:
|
|
507
|
1930
|
|
509
|
1931 continue;
|
|
|
1932 }
|
|
507
|
1933
|
|
577
|
1934
|
|
|
1935 src = conf->headers_source->elts;
|
|
509
|
1936 for (i = 0; i < conf->headers_source->nelts; i++) {
|
|
507
|
1937
|
|
649
|
1938 hk = ngx_array_push(conf->headers_names);
|
|
|
1939 if (hk == NULL) {
|
|
507
|
1940 return NGX_CONF_ERROR;
|
|
|
1941 }
|
|
|
1942
|
|
649
|
1943 hk->key = src[i].key;
|
|
|
1944 hk->key_hash = ngx_hash_key_lc(src[i].key.data, src[i].key.len);
|
|
|
1945 hk->value = (void *) 1;
|
|
509
|
1946
|
|
519
|
1947 if (src[i].value.len == 0) {
|
|
|
1948 continue;
|
|
|
1949 }
|
|
|
1950
|
|
509
|
1951 if (ngx_http_script_variables_count(&src[i].value) == 0) {
|
|
|
1952 copy = ngx_array_push_n(conf->headers_set_len,
|
|
|
1953 sizeof(ngx_http_script_copy_code_t));
|
|
|
1954 if (copy == NULL) {
|
|
|
1955 return NGX_CONF_ERROR;
|
|
|
1956 }
|
|
|
1957
|
|
|
1958 copy->code = (ngx_http_script_code_pt)
|
|
|
1959 ngx_http_script_copy_len_code;
|
|
|
1960 copy->len = src[i].key.len + sizeof(": ") - 1
|
|
|
1961 + src[i].value.len + sizeof(CRLF) - 1;
|
|
507
|
1962
|
|
|
1963
|
|
509
|
1964 size = (sizeof(ngx_http_script_copy_code_t)
|
|
|
1965 + src[i].key.len + sizeof(": ") - 1
|
|
|
1966 + src[i].value.len + sizeof(CRLF) - 1
|
|
|
1967 + sizeof(uintptr_t) - 1)
|
|
|
1968 & ~(sizeof(uintptr_t) - 1);
|
|
|
1969
|
|
|
1970 copy = ngx_array_push_n(conf->headers_set, size);
|
|
|
1971 if (copy == NULL) {
|
|
|
1972 return NGX_CONF_ERROR;
|
|
|
1973 }
|
|
|
1974
|
|
|
1975 copy->code = ngx_http_script_copy_code;
|
|
|
1976 copy->len = src[i].key.len + sizeof(": ") - 1
|
|
|
1977 + src[i].value.len + sizeof(CRLF) - 1;
|
|
|
1978
|
|
|
1979 p = (u_char *) copy + sizeof(ngx_http_script_copy_code_t);
|
|
|
1980
|
|
|
1981 p = ngx_cpymem(p, src[i].key.data, src[i].key.len);
|
|
|
1982 *p++ = ':'; *p++ = ' ';
|
|
|
1983 p = ngx_cpymem(p, src[i].value.data, src[i].value.len);
|
|
|
1984 *p++ = CR; *p = LF;
|
|
|
1985
|
|
|
1986 } else {
|
|
|
1987 copy = ngx_array_push_n(conf->headers_set_len,
|
|
|
1988 sizeof(ngx_http_script_copy_code_t));
|
|
|
1989 if (copy == NULL) {
|
|
|
1990 return NGX_CONF_ERROR;
|
|
|
1991 }
|
|
|
1992
|
|
|
1993 copy->code = (ngx_http_script_code_pt)
|
|
|
1994 ngx_http_script_copy_len_code;
|
|
|
1995 copy->len = src[i].key.len + sizeof(": ") - 1;
|
|
507
|
1996
|
|
|
1997
|
|
509
|
1998 size = (sizeof(ngx_http_script_copy_code_t)
|
|
|
1999 + src[i].key.len + sizeof(": ") - 1 + sizeof(uintptr_t) - 1)
|
|
|
2000 & ~(sizeof(uintptr_t) - 1);
|
|
|
2001
|
|
|
2002 copy = ngx_array_push_n(conf->headers_set, size);
|
|
|
2003 if (copy == NULL) {
|
|
|
2004 return NGX_CONF_ERROR;
|
|
|
2005 }
|
|
|
2006
|
|
|
2007 copy->code = ngx_http_script_copy_code;
|
|
|
2008 copy->len = src[i].key.len + sizeof(": ") - 1;
|
|
|
2009
|
|
|
2010 p = (u_char *) copy + sizeof(ngx_http_script_copy_code_t);
|
|
|
2011 p = ngx_cpymem(p, src[i].key.data, src[i].key.len);
|
|
|
2012 *p++ = ':'; *p = ' ';
|
|
|
2013
|
|
|
2014
|
|
|
2015 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t));
|
|
|
2016
|
|
|
2017 sc.cf = cf;
|
|
|
2018 sc.source = &src[i].value;
|
|
573
|
2019 sc.flushes = &conf->flushes;
|
|
509
|
2020 sc.lengths = &conf->headers_set_len;
|
|
|
2021 sc.values = &conf->headers_set;
|
|
|
2022
|
|
|
2023 if (ngx_http_script_compile(&sc) != NGX_OK) {
|
|
|
2024 return NGX_CONF_ERROR;
|
|
|
2025 }
|
|
|
2026
|
|
|
2027
|
|
|
2028 copy = ngx_array_push_n(conf->headers_set_len,
|
|
|
2029 sizeof(ngx_http_script_copy_code_t));
|
|
|
2030 if (copy == NULL) {
|
|
|
2031 return NGX_CONF_ERROR;
|
|
|
2032 }
|
|
|
2033
|
|
|
2034 copy->code = (ngx_http_script_code_pt)
|
|
|
2035 ngx_http_script_copy_len_code;
|
|
|
2036 copy->len = sizeof(CRLF) - 1;
|
|
|
2037
|
|
|
2038
|
|
|
2039 size = (sizeof(ngx_http_script_copy_code_t)
|
|
|
2040 + sizeof(CRLF) - 1 + sizeof(uintptr_t) - 1)
|
|
|
2041 & ~(sizeof(uintptr_t) - 1);
|
|
|
2042
|
|
|
2043 copy = ngx_array_push_n(conf->headers_set, size);
|
|
|
2044 if (copy == NULL) {
|
|
|
2045 return NGX_CONF_ERROR;
|
|
|
2046 }
|
|
|
2047
|
|
|
2048 copy->code = ngx_http_script_copy_code;
|
|
|
2049 copy->len = sizeof(CRLF) - 1;
|
|
|
2050
|
|
|
2051 p = (u_char *) copy + sizeof(ngx_http_script_copy_code_t);
|
|
|
2052 *p++ = CR; *p = LF;
|
|
507
|
2053 }
|
|
|
2054
|
|
509
|
2055 code = ngx_array_push_n(conf->headers_set_len, sizeof(uintptr_t));
|
|
|
2056 if (code == NULL) {
|
|
507
|
2057 return NGX_CONF_ERROR;
|
|
|
2058 }
|
|
|
2059
|
|
509
|
2060 *code = (uintptr_t) NULL;
|
|
|
2061
|
|
|
2062 code = ngx_array_push_n(conf->headers_set, sizeof(uintptr_t));
|
|
|
2063 if (code == NULL) {
|
|
|
2064 return NGX_CONF_ERROR;
|
|
|
2065 }
|
|
|
2066
|
|
|
2067 *code = (uintptr_t) NULL;
|
|
507
|
2068 }
|
|
|
2069
|
|
509
|
2070 code = ngx_array_push_n(conf->headers_set_len, sizeof(uintptr_t));
|
|
|
2071 if (code == NULL) {
|
|
|
2072 return NGX_CONF_ERROR;
|
|
507
|
2073 }
|
|
|
2074
|
|
509
|
2075 *code = (uintptr_t) NULL;
|
|
507
|
2076
|
|
|
2077
|
|
649
|
2078 hash.hash = &conf->headers_set_hash;
|
|
|
2079 hash.key = ngx_hash_key_lc;
|
|
|
2080 hash.max_size = 512;
|
|
|
2081 hash.bucket_size = ngx_cacheline_size;
|
|
|
2082 hash.name = "proxy_set_header_hash";
|
|
|
2083 hash.pool = cf->pool;
|
|
|
2084 hash.temp_pool = NULL;
|
|
|
2085
|
|
|
2086 if (ngx_hash_init(&hash, conf->headers_names->elts,
|
|
|
2087 conf->headers_names->nelts)
|
|
|
2088 != NGX_OK)
|
|
|
2089 {
|
|
|
2090 return NGX_CONF_ERROR;
|
|
|
2091 }
|
|
|
2092
|
|
|
2093
|
|
|
2094 #if 0
|
|
589
|
2095 conf->headers_set_hash = ngx_pcalloc(cf->pool, sizeof(ngx_hash0_t));
|
|
509
|
2096 if (conf->headers_set_hash == NULL) {
|
|
|
2097 return NGX_CONF_ERROR;
|
|
507
|
2098 }
|
|
|
2099
|
|
509
|
2100 conf->headers_set_hash->max_size = 100;
|
|
|
2101 conf->headers_set_hash->bucket_limit = 1;
|
|
|
2102 conf->headers_set_hash->bucket_size = sizeof(ngx_str_t);
|
|
|
2103 conf->headers_set_hash->name = "proxy_headers";
|
|
507
|
2104
|
|
589
|
2105 if (ngx_hash0_init(conf->headers_set_hash, cf->pool,
|
|
|
2106 conf->headers_names->elts, conf->headers_names->nelts)
|
|
|
2107 != NGX_OK)
|
|
509
|
2108 {
|
|
|
2109 return NGX_CONF_ERROR;
|
|
507
|
2110 }
|
|
|
2111
|
|
509
|
2112 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, cf->log, 0,
|
|
|
2113 "proxy_headers hash size: %ui, "
|
|
|
2114 "max buckets per entry: %ui",
|
|
|
2115 conf->headers_set_hash->hash_size,
|
|
|
2116 conf->headers_set_hash->min_buckets);
|
|
649
|
2117 #endif
|
|
507
|
2118
|
|
509
|
2119 return NGX_CONF_OK;
|
|
507
|
2120 }
|
|
|
2121
|
|
|
2122
|
|
|
2123 static char *
|
|
|
2124 ngx_http_proxy_pass(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
2125 {
|
|
509
|
2126 ngx_http_proxy_loc_conf_t *plcf = conf;
|
|
507
|
2127
|
|
577
|
2128 size_t add;
|
|
593
|
2129 u_short port;
|
|
507
|
2130 ngx_str_t *value, *url;
|
|
651
|
2131 ngx_url_t u;
|
|
507
|
2132 ngx_http_core_loc_conf_t *clcf;
|
|
577
|
2133 #if (NGX_HTTP_SSL)
|
|
|
2134 ngx_pool_cleanup_t *cln;
|
|
|
2135 #endif
|
|
507
|
2136
|
|
555
|
2137 if (plcf->upstream.schema.len) {
|
|
|
2138 return "is duplicate";
|
|
|
2139 }
|
|
|
2140
|
|
507
|
2141 value = cf->args->elts;
|
|
|
2142
|
|
|
2143 url = &value[1];
|
|
|
2144
|
|
577
|
2145 if (ngx_strncasecmp(url->data, "http://", 7) == 0) {
|
|
|
2146 add = 7;
|
|
591
|
2147 port = 80;
|
|
577
|
2148
|
|
|
2149 } else if (ngx_strncasecmp(url->data, "https://", 8) == 0) {
|
|
|
2150
|
|
|
2151 #if (NGX_HTTP_SSL)
|
|
|
2152
|
|
|
2153 add = 8;
|
|
591
|
2154 port = 443;
|
|
577
|
2155
|
|
|
2156 plcf->upstream.ssl = ngx_pcalloc(cf->pool, sizeof(ngx_ssl_t));
|
|
|
2157 if (plcf->upstream.ssl == NULL) {
|
|
|
2158 return NGX_CONF_ERROR;
|
|
|
2159 }
|
|
|
2160
|
|
|
2161 plcf->upstream.ssl->log = cf->log;
|
|
|
2162
|
|
|
2163 if (ngx_ssl_create(plcf->upstream.ssl,
|
|
|
2164 NGX_SSL_SSLv2|NGX_SSL_SSLv3|NGX_SSL_TLSv1)
|
|
|
2165 != NGX_OK)
|
|
|
2166 {
|
|
|
2167 return NGX_CONF_ERROR;
|
|
|
2168 }
|
|
|
2169
|
|
|
2170 cln = ngx_pool_cleanup_add(cf->pool, 0);
|
|
|
2171 if (cln == NULL) {
|
|
|
2172 return NGX_CONF_ERROR;
|
|
|
2173 }
|
|
|
2174
|
|
|
2175 cln->handler = ngx_ssl_cleanup_ctx;
|
|
|
2176 cln->data = plcf->upstream.ssl;
|
|
|
2177
|
|
|
2178 #else
|
|
|
2179 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
2180 "https protocol requires SSL support");
|
|
|
2181 return NGX_CONF_ERROR;
|
|
|
2182 #endif
|
|
|
2183
|
|
|
2184 } else {
|
|
507
|
2185 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid URL prefix");
|
|
|
2186 return NGX_CONF_ERROR;
|
|
|
2187 }
|
|
|
2188
|
|
651
|
2189 ngx_memzero(&u, sizeof(ngx_url_t));
|
|
|
2190
|
|
|
2191 u.url.len = url->len - add;
|
|
|
2192 u.url.data = url->data + add;
|
|
|
2193 u.default_portn = port;
|
|
|
2194 u.uri_part = 1;
|
|
|
2195 u.upstream = 1;
|
|
|
2196
|
|
|
2197 plcf->upstream_peers = ngx_http_upstream_add(cf, &u);
|
|
|
2198 if (plcf->upstream_peers == NULL) {
|
|
507
|
2199 return NGX_CONF_ERROR;
|
|
|
2200 }
|
|
|
2201
|
|
651
|
2202 plcf->host_header = u.host_header;
|
|
|
2203 plcf->port_text = u.port;
|
|
|
2204 plcf->upstream.uri = u.uri;
|
|
|
2205
|
|
591
|
2206 plcf->upstream.schema.len = add;
|
|
|
2207 plcf->upstream.schema.data = url->data;
|
|
509
|
2208
|
|
507
|
2209 clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module);
|
|
|
2210
|
|
|
2211 clcf->handler = ngx_http_proxy_handler;
|
|
|
2212
|
|
573
|
2213 plcf->upstream.location = clcf->name;
|
|
555
|
2214
|
|
507
|
2215 #if (NGX_PCRE)
|
|
555
|
2216
|
|
629
|
2217 if (clcf->regex || clcf->noname) {
|
|
573
|
2218 if (plcf->upstream.uri.len) {
|
|
|
2219 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
2220 "\"proxy_pass\" may not have URI part in "
|
|
629
|
2221 "location given by regular expression or "
|
|
|
2222 "inside the \"if\" statement");
|
|
573
|
2223 return NGX_CONF_ERROR;
|
|
|
2224 }
|
|
|
2225
|
|
|
2226 plcf->upstream.location.len = 0;
|
|
555
|
2227 }
|
|
|
2228
|
|
507
|
2229 #endif
|
|
|
2230
|
|
509
|
2231 plcf->upstream.url = *url;
|
|
|
2232
|
|
507
|
2233 if (clcf->name.data[clcf->name.len - 1] == '/') {
|
|
|
2234 clcf->auto_redirect = 1;
|
|
|
2235 }
|
|
|
2236
|
|
|
2237 return NGX_CONF_OK;
|
|
|
2238 }
|
|
|
2239
|
|
|
2240
|
|
|
2241 static char *
|
|
509
|
2242 ngx_http_proxy_redirect(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
507
|
2243 {
|
|
509
|
2244 ngx_http_proxy_loc_conf_t *plcf = conf;
|
|
|
2245
|
|
|
2246 ngx_str_t *value;
|
|
|
2247 ngx_array_t *vars_lengths, *vars_values;
|
|
|
2248 ngx_http_script_compile_t sc;
|
|
|
2249 ngx_http_proxy_redirect_t *pr;
|
|
|
2250
|
|
|
2251 if (plcf->redirect == 0) {
|
|
|
2252 return NGX_CONF_OK;
|
|
|
2253 }
|
|
|
2254
|
|
|
2255 value = cf->args->elts;
|
|
|
2256
|
|
|
2257 if (ngx_strcmp(value[1].data, "off") == 0) {
|
|
|
2258 plcf->redirect = 0;
|
|
|
2259 plcf->redirects = NULL;
|
|
|
2260 return NGX_CONF_OK;
|
|
|
2261 }
|
|
|
2262
|
|
|
2263 if (plcf->redirects == NULL) {
|
|
|
2264 plcf->redirects = ngx_array_create(cf->pool, 1,
|
|
|
2265 sizeof(ngx_http_proxy_redirect_t));
|
|
|
2266 if (plcf->redirects == NULL) {
|
|
|
2267 return NGX_CONF_ERROR;
|
|
|
2268 }
|
|
|
2269 }
|
|
|
2270
|
|
|
2271 pr = ngx_array_push(plcf->redirects);
|
|
|
2272 if (pr == NULL) {
|
|
|
2273 return NGX_CONF_ERROR;
|
|
|
2274 }
|
|
|
2275
|
|
|
2276 if (cf->args->nelts == 2 && ngx_strcmp(value[1].data, "default") == 0) {
|
|
|
2277 if (plcf->upstream.url.data == NULL) {
|
|
|
2278 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
2279 "\"proxy_rewrite_location default\" must go "
|
|
|
2280 "after the \"proxy_pass\" directive");
|
|
|
2281 return NGX_CONF_ERROR;
|
|
|
2282 }
|
|
|
2283
|
|
|
2284 pr->handler = ngx_http_proxy_rewrite_redirect_text;
|
|
|
2285 pr->redirect = plcf->upstream.url;
|
|
653
|
2286
|
|
|
2287 if (plcf->upstream.uri.len) {
|
|
|
2288 pr->replacement.text = plcf->upstream.location;
|
|
|
2289
|
|
|
2290 } else {
|
|
|
2291 pr->replacement.text.len = 0;
|
|
|
2292 pr->replacement.text.data = NULL;
|
|
|
2293 }
|
|
509
|
2294
|
|
|
2295 return NGX_CONF_OK;
|
|
|
2296 }
|
|
|
2297
|
|
|
2298 if (ngx_http_script_variables_count(&value[2]) == 0) {
|
|
|
2299 pr->handler = ngx_http_proxy_rewrite_redirect_text;
|
|
|
2300 pr->redirect = value[1];
|
|
|
2301 pr->replacement.text = value[2];
|
|
|
2302
|
|
|
2303 return NGX_CONF_OK;
|
|
|
2304 }
|
|
|
2305
|
|
|
2306 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t));
|
|
|
2307
|
|
|
2308 vars_lengths = NULL;
|
|
|
2309 vars_values = NULL;
|
|
|
2310
|
|
|
2311 sc.cf = cf;
|
|
|
2312 sc.source = &value[2];
|
|
|
2313 sc.lengths = &vars_lengths;
|
|
|
2314 sc.values = &vars_values;
|
|
|
2315 sc.complete_lengths = 1;
|
|
|
2316 sc.complete_values = 1;
|
|
|
2317
|
|
|
2318 if (ngx_http_script_compile(&sc) != NGX_OK) {
|
|
|
2319 return NGX_CONF_ERROR;
|
|
|
2320 }
|
|
|
2321
|
|
|
2322 pr->handler = ngx_http_proxy_rewrite_redirect_vars;
|
|
|
2323 pr->redirect = value[1];
|
|
|
2324 pr->replacement.vars.lengths = vars_lengths->elts;
|
|
|
2325 pr->replacement.vars.values = vars_values->elts;
|
|
|
2326
|
|
507
|
2327 return NGX_CONF_OK;
|
|
|
2328 }
|
|
|
2329
|
|
|
2330
|
|
|
2331 static char *
|
|
|
2332 ngx_http_proxy_lowat_check(ngx_conf_t *cf, void *post, void *data)
|
|
|
2333 {
|
|
|
2334 #if (NGX_FREEBSD)
|
|
|
2335 ssize_t *np = data;
|
|
|
2336
|
|
|
2337 if (*np >= ngx_freebsd_net_inet_tcp_sendspace) {
|
|
|
2338 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
2339 "\"proxy_send_lowat\" must be less than %d "
|
|
|
2340 "(sysctl net.inet.tcp.sendspace)",
|
|
|
2341 ngx_freebsd_net_inet_tcp_sendspace);
|
|
|
2342
|
|
|
2343 return NGX_CONF_ERROR;
|
|
|
2344 }
|
|
|
2345
|
|
|
2346 #elif !(NGX_HAVE_SO_SNDLOWAT)
|
|
|
2347 ssize_t *np = data;
|
|
|
2348
|
|
|
2349 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
|
|
|
2350 "\"proxy_send_lowat\" is not supported, ignored");
|
|
|
2351
|
|
|
2352 *np = 0;
|
|
|
2353
|
|
|
2354 #endif
|
|
|
2355
|
|
|
2356 return NGX_CONF_OK;
|
|
|
2357 }
|
