28
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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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5
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6
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
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9 #include <ngx_http.h>
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10
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11
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348
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12 static void ngx_http_upstream_resolve_handler(ngx_resolver_ctx_t *ctx);
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58
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13 static void ngx_http_upstream_rd_check_broken_connection(ngx_http_request_t *r);
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14 static void ngx_http_upstream_wr_check_broken_connection(ngx_http_request_t *r);
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15 static void ngx_http_upstream_check_broken_connection(ngx_http_request_t *r,
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16 ngx_event_t *ev);
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28
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17 static void ngx_http_upstream_connect(ngx_http_request_t *r,
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36
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18 ngx_http_upstream_t *u);
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58
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19 static ngx_int_t ngx_http_upstream_reinit(ngx_http_request_t *r,
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36
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20 ngx_http_upstream_t *u);
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28
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21 static void ngx_http_upstream_send_request(ngx_http_request_t *r,
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36
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22 ngx_http_upstream_t *u);
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28
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23 static void ngx_http_upstream_send_request_handler(ngx_event_t *wev);
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24 static void ngx_http_upstream_process_header(ngx_event_t *rev);
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294
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25 static ngx_int_t ngx_http_upstream_test_connect(ngx_connection_t *c);
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248
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26 static void ngx_http_upstream_process_body_in_memory(ngx_event_t *rev);
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28
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27 static void ngx_http_upstream_send_response(ngx_http_request_t *r,
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36
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28 ngx_http_upstream_t *u);
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130
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29 static void
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30 ngx_http_upstream_process_non_buffered_downstream(ngx_http_request_t *r);
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31 static void ngx_http_upstream_process_non_buffered_body(ngx_event_t *ev);
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32 static ngx_int_t ngx_http_upstream_non_buffered_filter_init(void *data);
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33 static ngx_int_t ngx_http_upstream_non_buffered_filter(void *data,
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34 ssize_t bytes);
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58
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35 static void ngx_http_upstream_process_downstream(ngx_http_request_t *r);
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28
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36 static void ngx_http_upstream_process_body(ngx_event_t *ev);
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318
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37 static void ngx_http_upstream_store(ngx_http_request_t *r,
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38 ngx_http_upstream_t *u);
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28
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39 static void ngx_http_upstream_dummy_handler(ngx_event_t *wev);
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40 static void ngx_http_upstream_next(ngx_http_request_t *r,
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36
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41 ngx_http_upstream_t *u, ngx_uint_t ft_type);
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118
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42 static void ngx_http_upstream_cleanup(void *data);
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28
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43 static void ngx_http_upstream_finalize_request(ngx_http_request_t *r,
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36
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44 ngx_http_upstream_t *u, ngx_int_t rc);
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28
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45
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58
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46 static ngx_int_t ngx_http_upstream_process_header_line(ngx_http_request_t *r,
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47 ngx_table_elt_t *h, ngx_uint_t offset);
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48 static ngx_int_t
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49 ngx_http_upstream_process_multi_header_lines(ngx_http_request_t *r,
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50 ngx_table_elt_t *h, ngx_uint_t offset);
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51 static ngx_int_t ngx_http_upstream_ignore_header_line(ngx_http_request_t *r,
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52 ngx_table_elt_t *h, ngx_uint_t offset);
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76
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53 static ngx_int_t ngx_http_upstream_process_limit_rate(ngx_http_request_t *r,
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54 ngx_table_elt_t *h, ngx_uint_t offset);
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198
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55 static ngx_int_t ngx_http_upstream_process_buffering(ngx_http_request_t *r,
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58
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56 ngx_table_elt_t *h, ngx_uint_t offset);
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206
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57 static ngx_int_t ngx_http_upstream_process_charset(ngx_http_request_t *r,
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58 ngx_table_elt_t *h, ngx_uint_t offset);
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198
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59 static ngx_int_t ngx_http_upstream_copy_header_line(ngx_http_request_t *r,
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58
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60 ngx_table_elt_t *h, ngx_uint_t offset);
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61 static ngx_int_t
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62 ngx_http_upstream_copy_multi_header_lines(ngx_http_request_t *r,
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63 ngx_table_elt_t *h, ngx_uint_t offset);
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64 static ngx_int_t ngx_http_upstream_copy_content_type(ngx_http_request_t *r,
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65 ngx_table_elt_t *h, ngx_uint_t offset);
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66 static ngx_int_t ngx_http_upstream_copy_content_length(ngx_http_request_t *r,
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67 ngx_table_elt_t *h, ngx_uint_t offset);
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68 static ngx_int_t ngx_http_upstream_rewrite_location(ngx_http_request_t *r,
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69 ngx_table_elt_t *h, ngx_uint_t offset);
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70 static ngx_int_t ngx_http_upstream_rewrite_refresh(ngx_http_request_t *r,
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71 ngx_table_elt_t *h, ngx_uint_t offset);
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72 #if (NGX_HTTP_GZIP)
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73 static ngx_int_t ngx_http_upstream_copy_content_encoding(ngx_http_request_t *r,
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74 ngx_table_elt_t *h, ngx_uint_t offset);
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75 #endif
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76
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122
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77 static ngx_int_t ngx_http_upstream_add_variables(ngx_conf_t *cf);
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298
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78 static ngx_int_t ngx_http_upstream_addr_variable(ngx_http_request_t *r,
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79 ngx_http_variable_value_t *v, uintptr_t data);
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122
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80 static ngx_int_t ngx_http_upstream_status_variable(ngx_http_request_t *r,
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81 ngx_http_variable_value_t *v, uintptr_t data);
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82 static ngx_int_t ngx_http_upstream_response_time_variable(ngx_http_request_t *r,
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83 ngx_http_variable_value_t *v, uintptr_t data);
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84
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200
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85 static char *ngx_http_upstream(ngx_conf_t *cf, ngx_command_t *cmd, void *dummy);
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86 static char *ngx_http_upstream_server(ngx_conf_t *cf, ngx_command_t *cmd,
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87 void *conf);
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88
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58
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89 static void *ngx_http_upstream_create_main_conf(ngx_conf_t *cf);
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200
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90 static char *ngx_http_upstream_init_main_conf(ngx_conf_t *cf, void *conf);
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58
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91
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126
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92 #if (NGX_HTTP_SSL)
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140
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93 static void ngx_http_upstream_ssl_init_connection(ngx_http_request_t *,
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94 ngx_http_upstream_t *u, ngx_connection_t *c);
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126
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95 static void ngx_http_upstream_ssl_handshake(ngx_connection_t *c);
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96 #endif
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97
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58
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98
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99 ngx_http_upstream_header_t ngx_http_upstream_headers_in[] = {
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100
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101 { ngx_string("Status"),
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102 ngx_http_upstream_process_header_line,
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103 offsetof(ngx_http_upstream_headers_in_t, status),
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198
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104 ngx_http_upstream_copy_header_line, 0, 0 },
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58
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105
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106 { ngx_string("Content-Type"),
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107 ngx_http_upstream_process_header_line,
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108 offsetof(ngx_http_upstream_headers_in_t, content_type),
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222
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109 ngx_http_upstream_copy_content_type, 0, 1 },
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58
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110
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111 { ngx_string("Content-Length"),
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112 ngx_http_upstream_process_header_line,
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113 offsetof(ngx_http_upstream_headers_in_t, content_length),
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64
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114 ngx_http_upstream_copy_content_length, 0, 0 },
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58
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115
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116 { ngx_string("Date"),
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117 ngx_http_upstream_process_header_line,
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118 offsetof(ngx_http_upstream_headers_in_t, date),
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198
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119 ngx_http_upstream_copy_header_line,
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120 offsetof(ngx_http_headers_out_t, date), 0 },
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58
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121
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318
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122 { ngx_string("Last-Modified"),
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123 ngx_http_upstream_process_header_line,
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124 offsetof(ngx_http_upstream_headers_in_t, last_modified),
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125 ngx_http_upstream_copy_header_line,
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126 offsetof(ngx_http_headers_out_t, last_modified), 0 },
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127
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58
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128 { ngx_string("Server"),
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129 ngx_http_upstream_process_header_line,
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130 offsetof(ngx_http_upstream_headers_in_t, server),
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198
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131 ngx_http_upstream_copy_header_line,
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132 offsetof(ngx_http_headers_out_t, server), 0 },
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58
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133
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78
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134 { ngx_string("WWW-Authenticate"),
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135 ngx_http_upstream_process_header_line,
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136 offsetof(ngx_http_upstream_headers_in_t, www_authenticate),
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137 ngx_http_upstream_copy_header_line, 0, 0 },
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138
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58
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139 { ngx_string("Location"),
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140 ngx_http_upstream_ignore_header_line, 0,
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64
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141 ngx_http_upstream_rewrite_location, 0, 0 },
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58
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142
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143 { ngx_string("Refresh"),
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144 ngx_http_upstream_ignore_header_line, 0,
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64
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145 ngx_http_upstream_rewrite_refresh, 0, 0 },
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146
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147 { ngx_string("Set-Cookie"),
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148 ngx_http_upstream_ignore_header_line, 0,
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80
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149 ngx_http_upstream_copy_header_line, 0, 1 },
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150
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151 { ngx_string("Content-Disposition"),
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152 ngx_http_upstream_ignore_header_line, 0,
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153 ngx_http_upstream_copy_header_line, 0, 1 },
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58
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154
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155 { ngx_string("Cache-Control"),
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156 ngx_http_upstream_process_multi_header_lines,
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157 offsetof(ngx_http_upstream_headers_in_t, cache_control),
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158 ngx_http_upstream_copy_multi_header_lines,
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64
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159 offsetof(ngx_http_headers_out_t, cache_control), 1 },
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160
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122
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161 { ngx_string("Expires"),
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162 ngx_http_upstream_process_header_line,
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163 offsetof(ngx_http_upstream_headers_in_t, expires),
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164 ngx_http_upstream_copy_header_line,
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165 offsetof(ngx_http_headers_out_t, expires), 1 },
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166
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126
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167 { ngx_string("Accept-Ranges"),
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168 ngx_http_upstream_process_header_line,
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169 offsetof(ngx_http_upstream_headers_in_t, accept_ranges),
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170 ngx_http_upstream_copy_header_line,
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171 offsetof(ngx_http_headers_out_t, accept_ranges), 1 },
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172
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58
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173 { ngx_string("Connection"),
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174 ngx_http_upstream_ignore_header_line, 0,
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64
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175 ngx_http_upstream_ignore_header_line, 0, 0 },
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58
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176
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190
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177 { ngx_string("Keep-Alive"),
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178 ngx_http_upstream_ignore_header_line, 0,
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179 ngx_http_upstream_ignore_header_line, 0, 0 },
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180
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58
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181 { ngx_string("X-Powered-By"),
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182 ngx_http_upstream_ignore_header_line, 0,
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198
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183 ngx_http_upstream_copy_header_line, 0, 0 },
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58
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184
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185 { ngx_string("X-Accel-Expires"),
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186 ngx_http_upstream_process_header_line,
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187 offsetof(ngx_http_upstream_headers_in_t, x_accel_expires),
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198
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188 ngx_http_upstream_copy_header_line, 0, 0 },
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64
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189
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190 { ngx_string("X-Accel-Redirect"),
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191 ngx_http_upstream_process_header_line,
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192 offsetof(ngx_http_upstream_headers_in_t, x_accel_redirect),
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193 ngx_http_upstream_ignore_header_line, 0, 0 },
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58
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194
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76
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195 { ngx_string("X-Accel-Limit-Rate"),
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196 ngx_http_upstream_process_limit_rate, 0,
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197 ngx_http_upstream_ignore_header_line, 0, 0 },
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198
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198
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199 { ngx_string("X-Accel-Buffering"),
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200 ngx_http_upstream_process_buffering, 0,
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201 ngx_http_upstream_ignore_header_line, 0, 0 },
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202
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206
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203 { ngx_string("X-Accel-Charset"),
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204 ngx_http_upstream_process_charset, 0,
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205 ngx_http_upstream_ignore_header_line, 0, 0 },
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206
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58
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207 #if (NGX_HTTP_GZIP)
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208 { ngx_string("Content-Encoding"),
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209 ngx_http_upstream_process_header_line,
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210 offsetof(ngx_http_upstream_headers_in_t, content_encoding),
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64
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211 ngx_http_upstream_copy_content_encoding, 0, 0 },
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58
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212 #endif
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213
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64
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214 { ngx_null_string, NULL, 0, NULL, 0, 0 }
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58
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215 };
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28
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216
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217
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200
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218 static ngx_command_t ngx_http_upstream_commands[] = {
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219
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220 { ngx_string("upstream"),
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221 NGX_HTTP_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_TAKE1,
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222 ngx_http_upstream,
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223 0,
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224 0,
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225 NULL },
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226
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227 { ngx_string("server"),
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260
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228 NGX_HTTP_UPS_CONF|NGX_CONF_1MORE,
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200
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229 ngx_http_upstream_server,
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230 NGX_HTTP_SRV_CONF_OFFSET,
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231 0,
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232 NULL },
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233
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234 ngx_null_command
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235 };
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236
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237
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238 static ngx_http_module_t ngx_http_upstream_module_ctx = {
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122
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239 ngx_http_upstream_add_variables, /* preconfiguration */
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240 NULL, /* postconfiguration */
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241
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242 ngx_http_upstream_create_main_conf, /* create main configuration */
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200
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243 ngx_http_upstream_init_main_conf, /* init main configuration */
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244
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245 NULL, /* create server configuration */
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246 NULL, /* merge server configuration */
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247
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248 NULL, /* create location configuration */
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249 NULL /* merge location configuration */
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250 };
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126
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251
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28
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252
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253 ngx_module_t ngx_http_upstream_module = {
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254 NGX_MODULE_V1,
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255 &ngx_http_upstream_module_ctx, /* module context */
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200
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256 ngx_http_upstream_commands, /* module directives */
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28
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257 NGX_HTTP_MODULE, /* module type */
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90
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258 NULL, /* init master */
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28
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259 NULL, /* init module */
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90
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260 NULL, /* init process */
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261 NULL, /* init thread */
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262 NULL, /* exit thread */
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263 NULL, /* exit process */
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264 NULL, /* exit master */
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265 NGX_MODULE_V1_PADDING
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28
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266 };
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267
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268
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122
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269 static ngx_http_variable_t ngx_http_upstream_vars[] = {
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270
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298
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271 { ngx_string("upstream_addr"), NULL,
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272 ngx_http_upstream_addr_variable, 0, NGX_HTTP_VAR_NOHASH, 0 },
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273
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186
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274 { ngx_string("upstream_status"), NULL,
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132
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275 ngx_http_upstream_status_variable, 0, NGX_HTTP_VAR_NOHASH, 0 },
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122
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276
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186
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277 { ngx_string("upstream_response_time"), NULL,
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132
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278 ngx_http_upstream_response_time_variable, 0, NGX_HTTP_VAR_NOHASH, 0 },
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122
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279
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186
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280 { ngx_null_string, NULL, NULL, 0, 0, 0 }
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122
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281 };
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282
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283
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36
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284 void
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285 ngx_http_upstream_init(ngx_http_request_t *r)
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28
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286 {
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348
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287 ngx_str_t *host;
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288 ngx_uint_t i;
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289 ngx_connection_t *c;
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290 ngx_resolver_ctx_t *ctx, temp;
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291 ngx_http_cleanup_t *cln;
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292 ngx_http_upstream_t *u;
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293 ngx_http_core_loc_conf_t *clcf;
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294 ngx_http_upstream_srv_conf_t *uscf, **uscfp;
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295 ngx_http_upstream_main_conf_t *umcf;
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28
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296
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297 c = r->connection;
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298
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299 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
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300 "http init upstream, client timer: %d", c->read->timer_set);
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301
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302 if (c->read->timer_set) {
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303 ngx_del_timer(c->read);
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304 }
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305
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178
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306 u = r->upstream;
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307
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308 if (!r->post_action && !u->conf->ignore_client_abort) {
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164
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309 r->read_event_handler = ngx_http_upstream_rd_check_broken_connection;
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310 r->write_event_handler = ngx_http_upstream_wr_check_broken_connection;
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311 }
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126
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312
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28
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313 if (ngx_event_flags & NGX_USE_CLEAR_EVENT) {
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314
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315 if (!c->write->active) {
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80
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316 if (ngx_add_event(c->write, NGX_WRITE_EVENT, NGX_CLEAR_EVENT)
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317 == NGX_ERROR)
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28
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318 {
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319 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
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320 return;
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321 }
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322 }
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323 }
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324
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86
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325 if (r->request_body) {
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326 u->request_bufs = r->request_body->bufs;
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327 }
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58
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328
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86
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329 if (u->create_request(r) != NGX_OK) {
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28
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330 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
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331 return;
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332 }
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333
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58
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334 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
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28
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335
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348
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336 u->output.sendfile = c->sendfile;
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28
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337 u->output.pool = r->pool;
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338 u->output.bufs.num = 1;
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58
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339 u->output.bufs.size = clcf->client_body_buffer_size;
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28
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340 u->output.output_filter = ngx_chain_writer;
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341 u->output.filter_ctx = &u->writer;
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342
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343 u->writer.pool = r->pool;
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344
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296
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345 if (r->upstream_states == NULL) {
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346
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347 r->upstream_states = ngx_array_create(r->pool, 1,
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348 sizeof(ngx_http_upstream_state_t));
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349 if (r->upstream_states == NULL) {
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350 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
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351 return;
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352 }
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353
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354 } else {
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355
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356 u->state = ngx_array_push(r->upstream_states);
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357 if (u->state == NULL) {
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358 ngx_http_upstream_finalize_request(r, u,
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359 NGX_HTTP_INTERNAL_SERVER_ERROR);
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360 return;
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361 }
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362
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363 ngx_memzero(u->state, sizeof(ngx_http_upstream_state_t));
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28
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364 }
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365
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142
|
366 cln = ngx_http_cleanup_add(r, 0);
|
118
|
367 if (cln == NULL) {
|
|
368 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
369 return;
|
|
370 }
|
|
371
|
|
372 cln->handler = ngx_http_upstream_cleanup;
|
|
373 cln->data = r;
|
|
374 u->cleanup = &cln->handler;
|
|
375
|
320
|
376 u->store = (u->conf->store || u->conf->store_lengths);
|
318
|
377
|
348
|
378 if (u->resolved == NULL) {
|
|
379
|
|
380 uscf = u->conf->upstream;
|
|
381
|
|
382 } else {
|
|
383
|
|
384 host = &r->upstream->resolved->host;
|
|
385
|
|
386 umcf = ngx_http_get_module_main_conf(r, ngx_http_upstream_module);
|
|
387
|
|
388 uscfp = umcf->upstreams.elts;
|
|
389
|
|
390 for (i = 0; i < umcf->upstreams.nelts; i++) {
|
|
391
|
|
392 uscf = uscfp[i];
|
|
393
|
|
394 if (uscf->host.len == host->len
|
|
395 && ngx_memcmp(uscf->host.data, host->data, host->len) == 0)
|
|
396 {
|
|
397 goto found;
|
|
398 }
|
|
399 }
|
|
400
|
|
401 temp.name = *host;
|
|
402
|
|
403 ctx = ngx_resolve_start(clcf->resolver, &temp);
|
|
404 if (ctx == NULL) {
|
|
405 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
406 return;
|
|
407 }
|
|
408
|
354
|
409 if (ctx == NGX_NO_RESOLVER) {
|
|
410 ngx_log_error(NGX_LOG_ERR, c->log, 0,
|
|
411 "no resolver defined to resolve %V", host);
|
|
412
|
|
413 ngx_http_finalize_request(r, NGX_HTTP_BAD_GATEWAY);
|
|
414 return;
|
|
415 }
|
|
416
|
348
|
417 ctx->name = *host;
|
|
418 ctx->type = NGX_RESOLVE_A;
|
|
419 ctx->handler = ngx_http_upstream_resolve_handler;
|
|
420 ctx->data = r;
|
|
421 ctx->timeout = clcf->resolver_timeout;
|
|
422
|
|
423 u->resolved->ctx = ctx;
|
|
424
|
|
425 if (ngx_resolve_name(ctx) != NGX_OK) {
|
|
426 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
427 return;
|
|
428 }
|
|
429
|
|
430 return;
|
|
431 }
|
|
432
|
|
433 found:
|
|
434
|
|
435 if (uscf->peer.init(r, uscf) != NGX_OK) {
|
|
436 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
437 return;
|
|
438 }
|
|
439
|
28
|
440 ngx_http_upstream_connect(r, u);
|
|
441 }
|
|
442
|
|
443
|
36
|
444 static void
|
348
|
445 ngx_http_upstream_resolve_handler(ngx_resolver_ctx_t *ctx)
|
|
446 {
|
|
447 ngx_http_request_t *r;
|
|
448 ngx_http_upstream_resolved_t *ur;
|
|
449
|
|
450 r = ctx->data;
|
|
451
|
|
452 r->upstream->resolved->ctx = NULL;
|
|
453
|
|
454 if (ctx->state) {
|
|
455 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
456 "%V could not be resolved (%i: %s)",
|
|
457 &ctx->name, ctx->state,
|
|
458 ngx_resolver_strerror(ctx->state));
|
|
459
|
|
460 ngx_resolve_name_done(ctx);
|
|
461 ngx_http_finalize_request(r, NGX_HTTP_BAD_GATEWAY);
|
|
462 return;
|
|
463 }
|
|
464
|
|
465 ur = r->upstream->resolved;
|
|
466 ur->naddrs = ctx->naddrs;
|
|
467 ur->addrs = ctx->addrs;
|
|
468
|
|
469 #if (NGX_DEBUG)
|
|
470 {
|
|
471 in_addr_t addr;
|
|
472 ngx_uint_t i;
|
|
473
|
|
474 for (i = 0; i < ctx->naddrs; i++) {
|
|
475 addr = ntohl(ur->addrs[i]);
|
|
476
|
|
477 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
478 "name was resolved to %ud.%ud.%ud.%ud",
|
|
479 (addr >> 24) & 0xff, (addr >> 16) & 0xff,
|
|
480 (addr >> 8) & 0xff, addr & 0xff);
|
|
481 }
|
|
482 }
|
|
483 #endif
|
|
484
|
|
485 if (ngx_http_upstream_create_round_robin_peer(r, ur) != NGX_OK) {
|
|
486 ngx_resolve_name_done(ctx);
|
|
487 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
488 return;
|
|
489 }
|
|
490
|
|
491 ngx_resolve_name_done(ctx);
|
|
492
|
|
493 ngx_http_upstream_connect(r, r->upstream);
|
|
494 }
|
|
495
|
|
496
|
|
497 static void
|
58
|
498 ngx_http_upstream_rd_check_broken_connection(ngx_http_request_t *r)
|
|
499 {
|
|
500 ngx_http_upstream_check_broken_connection(r, r->connection->read);
|
|
501 }
|
|
502
|
|
503
|
|
504 static void
|
|
505 ngx_http_upstream_wr_check_broken_connection(ngx_http_request_t *r)
|
|
506 {
|
|
507 ngx_http_upstream_check_broken_connection(r, r->connection->write);
|
|
508 }
|
|
509
|
|
510
|
|
511 static void
|
|
512 ngx_http_upstream_check_broken_connection(ngx_http_request_t *r,
|
|
513 ngx_event_t *ev)
|
28
|
514 {
|
|
515 int n;
|
|
516 char buf[1];
|
126
|
517 ngx_err_t err;
|
28
|
518 ngx_connection_t *c;
|
|
519 ngx_http_upstream_t *u;
|
|
520
|
76
|
521 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, ev->log, 0,
|
|
522 "http upstream check client, write event:%d, \"%V\"",
|
|
523 ev->write, &r->uri);
|
28
|
524
|
58
|
525 c = r->connection;
|
32
|
526 u = r->upstream;
|
|
527
|
132
|
528 if (c->error) {
|
76
|
529 ngx_http_upstream_finalize_request(r, u,
|
|
530 NGX_HTTP_CLIENT_CLOSED_REQUEST);
|
|
531 return;
|
|
532 }
|
|
533
|
32
|
534 if (u->peer.connection == NULL) {
|
|
535 return;
|
|
536 }
|
|
537
|
28
|
538 #if (NGX_HAVE_KQUEUE)
|
|
539
|
|
540 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
541
|
|
542 if (!ev->pending_eof) {
|
|
543 return;
|
|
544 }
|
|
545
|
|
546 ev->eof = 1;
|
132
|
547 c->error = 1;
|
28
|
548
|
|
549 if (ev->kq_errno) {
|
|
550 ev->error = 1;
|
|
551 }
|
|
552
|
340
|
553 if (!u->cacheable && !u->store && u->peer.connection) {
|
28
|
554 ngx_log_error(NGX_LOG_INFO, ev->log, ev->kq_errno,
|
76
|
555 "kevent() reported that client closed prematurely "
|
|
556 "connection, so upstream connection is closed too");
|
28
|
557 ngx_http_upstream_finalize_request(r, u,
|
|
558 NGX_HTTP_CLIENT_CLOSED_REQUEST);
|
|
559 return;
|
|
560 }
|
|
561
|
|
562 ngx_log_error(NGX_LOG_INFO, ev->log, ev->kq_errno,
|
|
563 "kevent() reported that client closed "
|
|
564 "prematurely connection");
|
|
565
|
|
566 if (u->peer.connection == NULL) {
|
|
567 ngx_http_upstream_finalize_request(r, u,
|
|
568 NGX_HTTP_CLIENT_CLOSED_REQUEST);
|
|
569 return;
|
|
570 }
|
|
571
|
|
572 return;
|
|
573 }
|
|
574
|
|
575 #endif
|
|
576
|
|
577 n = recv(c->fd, buf, 1, MSG_PEEK);
|
|
578
|
|
579 err = ngx_socket_errno;
|
|
580
|
286
|
581 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ev->log, err,
|
|
582 "http upstream recv(): %d", n);
|
|
583
|
28
|
584 /*
|
|
585 * we do not need to disable the write event because
|
|
586 * that event has NGX_USE_CLEAR_EVENT type
|
|
587 */
|
|
588
|
|
589 if (ev->write && (n >= 0 || err == NGX_EAGAIN)) {
|
|
590 return;
|
|
591 }
|
|
592
|
|
593 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT) && ev->active) {
|
|
594 if (ngx_del_event(ev, NGX_READ_EVENT, 0) == NGX_ERROR) {
|
|
595 ngx_http_upstream_finalize_request(r, u,
|
|
596 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
597 return;
|
|
598 }
|
|
599 }
|
|
600
|
|
601 if (n > 0) {
|
|
602 return;
|
|
603 }
|
|
604
|
|
605 if (n == -1) {
|
|
606 if (err == NGX_EAGAIN) {
|
|
607 return;
|
|
608 }
|
|
609
|
|
610 ev->error = 1;
|
|
611
|
32
|
612 } else { /* n == 0 */
|
28
|
613 err = 0;
|
|
614 }
|
|
615
|
78
|
616 ev->eof = 1;
|
132
|
617 c->error = 1;
|
78
|
618
|
340
|
619 if (!u->cacheable && !u->store && u->peer.connection) {
|
28
|
620 ngx_log_error(NGX_LOG_INFO, ev->log, err,
|
|
621 "client closed prematurely connection, "
|
|
622 "so upstream connection is closed too");
|
|
623 ngx_http_upstream_finalize_request(r, u,
|
|
624 NGX_HTTP_CLIENT_CLOSED_REQUEST);
|
|
625 return;
|
|
626 }
|
|
627
|
|
628 ngx_log_error(NGX_LOG_INFO, ev->log, err,
|
|
629 "client closed prematurely connection");
|
|
630
|
|
631 if (u->peer.connection == NULL) {
|
|
632 ngx_http_upstream_finalize_request(r, u,
|
|
633 NGX_HTTP_CLIENT_CLOSED_REQUEST);
|
|
634 return;
|
|
635 }
|
|
636 }
|
|
637
|
|
638
|
36
|
639 static void
|
|
640 ngx_http_upstream_connect(ngx_http_request_t *r, ngx_http_upstream_t *u)
|
28
|
641 {
|
140
|
642 ngx_int_t rc;
|
214
|
643 ngx_time_t *tp;
|
140
|
644 ngx_connection_t *c;
|
28
|
645
|
32
|
646 r->connection->log->action = "connecting to upstream";
|
28
|
647
|
|
648 r->connection->single_connection = 0;
|
|
649
|
262
|
650 if (u->state && u->state->response_sec) {
|
214
|
651 tp = ngx_timeofday();
|
262
|
652 u->state->response_sec = tp->sec - u->state->response_sec;
|
|
653 u->state->response_msec = tp->msec - u->state->response_msec;
|
214
|
654 }
|
|
655
|
296
|
656 u->state = ngx_array_push(r->upstream_states);
|
214
|
657 if (u->state == NULL) {
|
|
658 ngx_http_upstream_finalize_request(r, u,
|
|
659 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
660 return;
|
|
661 }
|
|
662
|
|
663 ngx_memzero(u->state, sizeof(ngx_http_upstream_state_t));
|
|
664
|
|
665 tp = ngx_timeofday();
|
262
|
666 u->state->response_sec = tp->sec;
|
|
667 u->state->response_msec = tp->msec;
|
348
|
668 u->state->peer = u->peer.name;
|
214
|
669
|
28
|
670 rc = ngx_event_connect_peer(&u->peer);
|
|
671
|
|
672 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
673 "http upstream connect: %i", rc);
|
|
674
|
|
675 if (rc == NGX_ERROR) {
|
|
676 ngx_http_upstream_finalize_request(r, u,
|
|
677 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
678 return;
|
|
679 }
|
|
680
|
92
|
681 if (rc == NGX_BUSY) {
|
|
682 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "no live upstreams");
|
326
|
683 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_NOLIVE);
|
|
684 return;
|
92
|
685 }
|
|
686
|
326
|
687 if (rc == NGX_DECLINED) {
|
28
|
688 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR);
|
|
689 return;
|
|
690 }
|
|
691
|
126
|
692 /* rc == NGX_OK || rc == NGX_AGAIN */
|
|
693
|
28
|
694 c = u->peer.connection;
|
|
695
|
|
696 c->data = r;
|
140
|
697
|
58
|
698 c->write->handler = ngx_http_upstream_send_request_handler;
|
|
699 c->read->handler = ngx_http_upstream_process_header;
|
28
|
700
|
326
|
701 c->sendfile &= r->connection->sendfile;
|
28
|
702
|
|
703 c->pool = r->pool;
|
|
704 c->read->log = c->write->log = c->log = r->connection->log;
|
|
705
|
|
706 /* init or reinit the ngx_output_chain() and ngx_chain_writer() contexts */
|
|
707
|
|
708 u->writer.out = NULL;
|
|
709 u->writer.last = &u->writer.out;
|
|
710 u->writer.connection = c;
|
|
711 u->writer.limit = 0;
|
|
712
|
|
713 if (u->request_sent) {
|
58
|
714 if (ngx_http_upstream_reinit(r, u) != NGX_OK) {
|
|
715 ngx_http_upstream_finalize_request(r, u,
|
|
716 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
717 return;
|
|
718 }
|
28
|
719 }
|
|
720
|
276
|
721 if (r->request_body
|
|
722 && r->request_body->buf
|
|
723 && r->request_body->temp_file
|
|
724 && r == r->main)
|
|
725 {
|
122
|
726 /*
|
|
727 * the r->request_body->buf can be reused for one request only,
|
|
728 * the subrequests should allocate their own temporay bufs
|
|
729 */
|
|
730
|
|
731 u->output.free = ngx_alloc_chain_link(r->pool);
|
|
732 if (u->output.free == NULL) {
|
|
733 ngx_http_upstream_finalize_request(r, u,
|
|
734 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
735 return;
|
28
|
736 }
|
122
|
737
|
|
738 u->output.free->buf = r->request_body->buf;
|
|
739 u->output.free->next = NULL;
|
|
740 u->output.allocated = 1;
|
|
741
|
|
742 r->request_body->buf->pos = r->request_body->buf->start;
|
|
743 r->request_body->buf->last = r->request_body->buf->start;
|
|
744 r->request_body->buf->tag = u->output.tag;
|
28
|
745 }
|
|
746
|
|
747 u->request_sent = 0;
|
|
748
|
|
749 if (rc == NGX_AGAIN) {
|
|
750 ngx_add_timer(c->write, u->conf->connect_timeout);
|
|
751 return;
|
|
752 }
|
|
753
|
126
|
754 #if (NGX_HTTP_SSL)
|
|
755
|
348
|
756 if (u->ssl && c->ssl == NULL) {
|
140
|
757 ngx_http_upstream_ssl_init_connection(r, u, c);
|
126
|
758 return;
|
|
759 }
|
|
760
|
|
761 #endif
|
|
762
|
28
|
763 ngx_http_upstream_send_request(r, u);
|
|
764 }
|
|
765
|
|
766
|
126
|
767 #if (NGX_HTTP_SSL)
|
|
768
|
|
769 static void
|
140
|
770 ngx_http_upstream_ssl_init_connection(ngx_http_request_t *r,
|
|
771 ngx_http_upstream_t *u, ngx_connection_t *c)
|
|
772 {
|
260
|
773 ngx_int_t rc;
|
140
|
774
|
|
775 if (ngx_ssl_create_connection(u->conf->ssl, c,
|
|
776 NGX_SSL_BUFFER|NGX_SSL_CLIENT)
|
|
777 == NGX_ERROR)
|
|
778 {
|
|
779 ngx_http_upstream_finalize_request(r, u,
|
|
780 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
781 return;
|
|
782 }
|
|
783
|
|
784 c->sendfile = 0;
|
168
|
785 u->output.sendfile = 0;
|
140
|
786
|
318
|
787 if (u->peer.set_session(&u->peer, u->peer.data) != NGX_OK) {
|
140
|
788 ngx_http_upstream_finalize_request(r, u,
|
|
789 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
790 return;
|
|
791 }
|
|
792
|
190
|
793 r->connection->log->action = "SSL handshaking to upstream";
|
|
794
|
140
|
795 rc = ngx_ssl_handshake(c);
|
|
796
|
|
797 if (rc == NGX_AGAIN) {
|
|
798 c->ssl->handler = ngx_http_upstream_ssl_handshake;
|
|
799 return;
|
|
800 }
|
|
801
|
|
802 ngx_http_upstream_ssl_handshake(c);
|
|
803 }
|
|
804
|
|
805
|
|
806 static void
|
126
|
807 ngx_http_upstream_ssl_handshake(ngx_connection_t *c)
|
|
808 {
|
|
809 ngx_http_request_t *r;
|
|
810 ngx_http_upstream_t *u;
|
|
811
|
|
812 r = c->data;
|
|
813 u = r->upstream;
|
|
814
|
|
815 if (c->ssl->handshaked) {
|
|
816
|
260
|
817 u->peer.save_session(&u->peer, u->peer.data);
|
|
818
|
126
|
819 c->write->handler = ngx_http_upstream_send_request_handler;
|
|
820 c->read->handler = ngx_http_upstream_process_header;
|
|
821
|
|
822 ngx_http_upstream_send_request(r, u);
|
|
823
|
|
824 return;
|
|
825 }
|
|
826
|
|
827 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR);
|
|
828
|
|
829 }
|
|
830
|
|
831 #endif
|
|
832
|
|
833
|
58
|
834 static ngx_int_t
|
36
|
835 ngx_http_upstream_reinit(ngx_http_request_t *r, ngx_http_upstream_t *u)
|
28
|
836 {
|
|
837 ngx_chain_t *cl;
|
|
838
|
58
|
839 if (u->reinit_request(r) != NGX_OK) {
|
|
840 return NGX_ERROR;
|
|
841 }
|
|
842
|
|
843 ngx_memzero(&r->upstream->headers_in,
|
|
844 sizeof(ngx_http_upstream_headers_in_t));
|
|
845
|
|
846 if (ngx_list_init(&r->upstream->headers_in.headers, r->pool, 8,
|
140
|
847 sizeof(ngx_table_elt_t))
|
|
848 != NGX_OK)
|
58
|
849 {
|
|
850 return NGX_ERROR;
|
28
|
851 }
|
|
852
|
|
853 /* reinit the request chain */
|
126
|
854
|
58
|
855 for (cl = u->request_bufs; cl; cl = cl->next) {
|
28
|
856 cl->buf->pos = cl->buf->start;
|
|
857 cl->buf->file_pos = 0;
|
|
858 }
|
|
859
|
58
|
860 /* reinit the subrequest's ngx_output_chain() context */
|
|
861
|
122
|
862 if (r->request_body && r->request_body->temp_file
|
146
|
863 && r != r->main && u->output.buf)
|
122
|
864 {
|
|
865 u->output.free = ngx_alloc_chain_link(r->pool);
|
|
866 if (u->output.free == NULL) {
|
|
867 return NGX_ERROR;
|
58
|
868 }
|
122
|
869
|
|
870 u->output.free->buf = u->output.buf;
|
|
871 u->output.free->next = NULL;
|
|
872
|
|
873 u->output.buf->pos = u->output.buf->start;
|
|
874 u->output.buf->last = u->output.buf->start;
|
58
|
875 }
|
28
|
876
|
|
877 u->output.buf = NULL;
|
|
878 u->output.in = NULL;
|
|
879 u->output.busy = NULL;
|
126
|
880
|
130
|
881 /* reinit u->buffer */
|
126
|
882
|
28
|
883 #if 0
|
|
884 if (u->cache) {
|
130
|
885 u->buffer.pos = u->buffer.start + u->cache->ctx.header_size;
|
|
886 u->buffer.last = u->buffer.pos;
|
28
|
887
|
|
888 } else {
|
130
|
889 u->buffer.pos = u->buffer.start;
|
|
890 u->buffer.last = u->buffer.start;
|
28
|
891 }
|
|
892 #else
|
58
|
893
|
130
|
894 u->buffer.pos = u->buffer.start;
|
|
895 u->buffer.last = u->buffer.start;
|
58
|
896
|
28
|
897 #endif
|
|
898
|
58
|
899 return NGX_OK;
|
28
|
900 }
|
|
901
|
|
902
|
36
|
903 static void
|
|
904 ngx_http_upstream_send_request(ngx_http_request_t *r, ngx_http_upstream_t *u)
|
28
|
905 {
|
294
|
906 ngx_int_t rc;
|
32
|
907 ngx_connection_t *c;
|
126
|
908
|
28
|
909 c = u->peer.connection;
|
|
910
|
|
911 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
912 "http upstream send request");
|
|
913
|
294
|
914 if (!u->request_sent && ngx_http_upstream_test_connect(c) != NGX_OK) {
|
296
|
915 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR);
|
294
|
916 return;
|
28
|
917 }
|
|
918
|
32
|
919 c->log->action = "sending request to upstream";
|
28
|
920
|
58
|
921 rc = ngx_output_chain(&u->output, u->request_sent ? NULL : u->request_bufs);
|
28
|
922
|
|
923 u->request_sent = 1;
|
|
924
|
|
925 if (rc == NGX_ERROR) {
|
|
926 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR);
|
|
927 return;
|
|
928 }
|
|
929
|
|
930 if (c->write->timer_set) {
|
|
931 ngx_del_timer(c->write);
|
|
932 }
|
|
933
|
|
934 if (rc == NGX_AGAIN) {
|
|
935 ngx_add_timer(c->write, u->conf->send_timeout);
|
|
936
|
|
937 if (ngx_handle_write_event(c->write, u->conf->send_lowat) == NGX_ERROR)
|
|
938 {
|
|
939 ngx_http_upstream_finalize_request(r, u,
|
|
940 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
941 return;
|
|
942 }
|
|
943
|
|
944 return;
|
|
945 }
|
|
946
|
|
947 /* rc == NGX_OK */
|
|
948
|
|
949 if (c->tcp_nopush == NGX_TCP_NOPUSH_SET) {
|
|
950 if (ngx_tcp_push(c->fd) == NGX_ERROR) {
|
|
951 ngx_log_error(NGX_LOG_CRIT, c->log, ngx_socket_errno,
|
|
952 ngx_tcp_push_n " failed");
|
|
953 ngx_http_upstream_finalize_request(r, u,
|
|
954 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
126
|
955 return;
|
28
|
956 }
|
|
957
|
|
958 c->tcp_nopush = NGX_TCP_NOPUSH_UNSET;
|
|
959 }
|
126
|
960
|
28
|
961 ngx_add_timer(c->read, u->conf->read_timeout);
|
|
962
|
|
963 #if 1
|
|
964 if (c->read->ready) {
|
126
|
965
|
28
|
966 /* post aio operation */
|
|
967
|
|
968 /*
|
|
969 * TODO comment
|
|
970 * although we can post aio operation just in the end
|
|
971 * of ngx_http_upstream_connect() CHECK IT !!!
|
|
972 * it's better to do here because we postpone header buffer allocation
|
|
973 */
|
|
974
|
|
975 ngx_http_upstream_process_header(c->read);
|
|
976 return;
|
|
977 }
|
|
978 #endif
|
|
979
|
58
|
980 c->write->handler = ngx_http_upstream_dummy_handler;
|
28
|
981
|
58
|
982 if (ngx_handle_write_event(c->write, 0) == NGX_ERROR) {
|
28
|
983 ngx_http_upstream_finalize_request(r, u,
|
|
984 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
985 return;
|
|
986 }
|
|
987 }
|
|
988
|
|
989
|
36
|
990 static void
|
|
991 ngx_http_upstream_send_request_handler(ngx_event_t *wev)
|
28
|
992 {
|
|
993 ngx_connection_t *c;
|
|
994 ngx_http_request_t *r;
|
|
995 ngx_http_upstream_t *u;
|
|
996
|
|
997 c = wev->data;
|
|
998 r = c->data;
|
|
999 u = r->upstream;
|
|
1000
|
|
1001 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
1002 "http upstream send request handler");
|
|
1003
|
|
1004 if (wev->timedout) {
|
|
1005 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_TIMEOUT);
|
|
1006 return;
|
|
1007 }
|
|
1008
|
140
|
1009 #if (NGX_HTTP_SSL)
|
|
1010
|
348
|
1011 if (u->ssl && c->ssl == NULL) {
|
140
|
1012 ngx_http_upstream_ssl_init_connection(r, u, c);
|
|
1013 return;
|
|
1014 }
|
|
1015
|
|
1016 #endif
|
|
1017
|
200
|
1018 if (u->header_sent) {
|
|
1019 wev->handler = ngx_http_upstream_dummy_handler;
|
|
1020
|
|
1021 (void) ngx_handle_write_event(wev, 0);
|
|
1022
|
|
1023 return;
|
|
1024 }
|
|
1025
|
28
|
1026 ngx_http_upstream_send_request(r, u);
|
|
1027 }
|
|
1028
|
|
1029
|
36
|
1030 static void
|
|
1031 ngx_http_upstream_process_header(ngx_event_t *rev)
|
28
|
1032 {
|
64
|
1033 ssize_t n;
|
|
1034 ngx_int_t rc;
|
122
|
1035 ngx_str_t *uri, args;
|
198
|
1036 ngx_uint_t i, flags;
|
64
|
1037 ngx_list_part_t *part;
|
|
1038 ngx_table_elt_t *h;
|
|
1039 ngx_connection_t *c;
|
|
1040 ngx_http_request_t *r;
|
|
1041 ngx_http_upstream_t *u;
|
|
1042 ngx_http_err_page_t *err_page;
|
|
1043 ngx_http_core_loc_conf_t *clcf;
|
|
1044 ngx_http_upstream_header_t *hh;
|
|
1045 ngx_http_upstream_main_conf_t *umcf;
|
28
|
1046
|
|
1047 c = rev->data;
|
|
1048 r = c->data;
|
|
1049 u = r->upstream;
|
|
1050
|
|
1051 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
32
|
1052 "http upstream process header");
|
28
|
1053
|
32
|
1054 c->log->action = "reading response header from upstream";
|
28
|
1055
|
|
1056 if (rev->timedout) {
|
|
1057 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_TIMEOUT);
|
|
1058 return;
|
|
1059 }
|
126
|
1060
|
294
|
1061 if (!u->request_sent && ngx_http_upstream_test_connect(c) != NGX_OK) {
|
296
|
1062 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR);
|
294
|
1063 return;
|
|
1064 }
|
|
1065
|
130
|
1066 if (u->buffer.start == NULL) {
|
|
1067 u->buffer.start = ngx_palloc(r->pool, u->conf->buffer_size);
|
|
1068 if (u->buffer.start == NULL) {
|
28
|
1069 ngx_http_upstream_finalize_request(r, u,
|
|
1070 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
1071 return;
|
|
1072 }
|
|
1073
|
130
|
1074 u->buffer.pos = u->buffer.start;
|
|
1075 u->buffer.last = u->buffer.start;
|
|
1076 u->buffer.end = u->buffer.start + u->conf->buffer_size;
|
|
1077 u->buffer.temporary = 1;
|
|
1078
|
|
1079 u->buffer.tag = u->output.tag;
|
28
|
1080
|
58
|
1081 if (ngx_list_init(&r->upstream->headers_in.headers, r->pool, 8,
|
130
|
1082 sizeof(ngx_table_elt_t))
|
|
1083 != NGX_OK)
|
58
|
1084 {
|
|
1085 ngx_http_upstream_finalize_request(r, u,
|
|
1086 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
1087 return;
|
|
1088 }
|
|
1089
|
28
|
1090 #if 0
|
|
1091 if (u->cache) {
|
130
|
1092 u->buffer.pos += u->cache->ctx.header_size;
|
|
1093 u->buffer.last = u->buffer.pos;
|
28
|
1094 }
|
|
1095 #endif
|
|
1096 }
|
|
1097
|
340
|
1098 n = c->recv(c, u->buffer.last, u->buffer.end - u->buffer.last);
|
28
|
1099
|
|
1100 if (n == NGX_AGAIN) {
|
|
1101 #if 0
|
|
1102 ngx_add_timer(rev, u->read_timeout);
|
|
1103 #endif
|
|
1104
|
|
1105 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
1106 ngx_http_upstream_finalize_request(r, u,
|
|
1107 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
1108 return;
|
|
1109 }
|
|
1110
|
|
1111 return;
|
|
1112 }
|
|
1113
|
|
1114 if (n == 0) {
|
|
1115 ngx_log_error(NGX_LOG_ERR, rev->log, 0,
|
|
1116 "upstream prematurely closed connection");
|
|
1117 }
|
|
1118
|
|
1119 if (n == NGX_ERROR || n == 0) {
|
|
1120 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR);
|
|
1121 return;
|
|
1122 }
|
|
1123
|
130
|
1124 u->buffer.last += n;
|
28
|
1125
|
|
1126 #if 0
|
|
1127 u->valid_header_in = 0;
|
|
1128
|
|
1129 u->peer.cached = 0;
|
|
1130 #endif
|
|
1131
|
|
1132 rc = u->process_header(r);
|
|
1133
|
|
1134 if (rc == NGX_AGAIN) {
|
|
1135 #if 0
|
|
1136 ngx_add_timer(rev, u->read_timeout);
|
|
1137 #endif
|
|
1138
|
130
|
1139 if (u->buffer.pos == u->buffer.end) {
|
28
|
1140 ngx_log_error(NGX_LOG_ERR, rev->log, 0,
|
|
1141 "upstream sent too big header");
|
|
1142
|
|
1143 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_INVALID_HEADER);
|
|
1144 return;
|
|
1145 }
|
|
1146
|
|
1147 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
1148 ngx_http_upstream_finalize_request(r, u,
|
|
1149 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
1150 return;
|
|
1151 }
|
|
1152
|
|
1153 return;
|
|
1154 }
|
|
1155
|
|
1156 if (rc == NGX_HTTP_UPSTREAM_INVALID_HEADER) {
|
|
1157 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_INVALID_HEADER);
|
|
1158 return;
|
|
1159 }
|
|
1160
|
|
1161 if (rc == NGX_ERROR || rc == NGX_HTTP_INTERNAL_SERVER_ERROR) {
|
|
1162 ngx_http_upstream_finalize_request(r, u,
|
|
1163 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
1164 return;
|
|
1165 }
|
|
1166
|
|
1167 /* rc == NGX_OK */
|
|
1168
|
248
|
1169 if (u->headers_in.status_n >= NGX_HTTP_BAD_REQUEST
|
|
1170 && r->subrequest_in_memory)
|
|
1171 {
|
|
1172 u->buffer.last = u->buffer.pos;
|
|
1173 }
|
|
1174
|
78
|
1175 if (u->headers_in.status_n == NGX_HTTP_INTERNAL_SERVER_ERROR) {
|
58
|
1176
|
|
1177 if (u->peer.tries > 1
|
|
1178 && (u->conf->next_upstream & NGX_HTTP_UPSTREAM_FT_HTTP_500))
|
|
1179 {
|
|
1180 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_HTTP_500);
|
|
1181 return;
|
|
1182 }
|
|
1183
|
|
1184 #if (NGX_HTTP_CACHE)
|
|
1185
|
|
1186 if (u->peer.tries == 0
|
|
1187 && u->stale
|
|
1188 && (u->conf->use_stale & NGX_HTTP_UPSTREAM_FT_HTTP_500))
|
|
1189 {
|
|
1190 ngx_http_upstream_finalize_request(r, u,
|
78
|
1191 ngx_http_send_cached_response(r));
|
58
|
1192 return;
|
|
1193 }
|
|
1194
|
|
1195 #endif
|
|
1196 }
|
|
1197
|
146
|
1198 if (u->headers_in.status_n == NGX_HTTP_NOT_FOUND) {
|
|
1199
|
|
1200 if (u->peer.tries > 1
|
|
1201 && u->conf->next_upstream & NGX_HTTP_UPSTREAM_FT_HTTP_404)
|
|
1202 {
|
|
1203 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_HTTP_404);
|
|
1204 return;
|
|
1205 }
|
|
1206
|
224
|
1207 if (u->conf->intercept_404) {
|
|
1208 ngx_http_upstream_finalize_request(r, u, NGX_HTTP_NOT_FOUND);
|
146
|
1209 return;
|
|
1210 }
|
58
|
1211 }
|
|
1212
|
|
1213
|
78
|
1214 if (u->headers_in.status_n >= NGX_HTTP_BAD_REQUEST
|
224
|
1215 && u->conf->intercept_errors)
|
36
|
1216 {
|
|
1217 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
1218
|
|
1219 if (clcf->error_pages) {
|
|
1220
|
|
1221 err_page = clcf->error_pages->elts;
|
|
1222 for (i = 0; i < clcf->error_pages->nelts; i++) {
|
78
|
1223 if (err_page[i].status == (ngx_int_t) u->headers_in.status_n) {
|
|
1224
|
|
1225 if (u->headers_in.status_n == NGX_HTTP_UNAUTHORIZED) {
|
|
1226
|
|
1227 r->headers_out.www_authenticate =
|
|
1228 ngx_list_push(&r->headers_out.headers);
|
|
1229
|
|
1230 if (r->headers_out.www_authenticate == NULL) {
|
|
1231 ngx_http_upstream_finalize_request(r, u,
|
|
1232 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
1233 return;
|
|
1234 }
|
|
1235
|
126
|
1236 *r->headers_out.www_authenticate =
|
78
|
1237 *u->headers_in.www_authenticate;
|
|
1238 }
|
|
1239
|
36
|
1240 ngx_http_upstream_finalize_request(r, u,
|
78
|
1241 u->headers_in.status_n);
|
36
|
1242 return;
|
|
1243 }
|
|
1244 }
|
|
1245 }
|
|
1246 }
|
|
1247
|
230
|
1248 umcf = ngx_http_get_module_main_conf(r, ngx_http_upstream_module);
|
|
1249
|
64
|
1250 if (r->upstream->headers_in.x_accel_redirect) {
|
244
|
1251
|
64
|
1252 ngx_http_upstream_finalize_request(r, u, NGX_DECLINED);
|
|
1253
|
|
1254 part = &r->upstream->headers_in.headers.part;
|
|
1255 h = part->elts;
|
|
1256
|
|
1257 for (i = 0; /* void */; i++) {
|
|
1258
|
|
1259 if (i >= part->nelts) {
|
|
1260 if (part->next == NULL) {
|
|
1261 break;
|
|
1262 }
|
126
|
1263
|
64
|
1264 part = part->next;
|
|
1265 h = part->elts;
|
|
1266 i = 0;
|
|
1267 }
|
|
1268
|
198
|
1269 hh = ngx_hash_find(&umcf->headers_in_hash, h[i].hash,
|
|
1270 h[i].lowcase_key, h[i].key.len);
|
|
1271
|
|
1272 if (hh && hh->redirect) {
|
|
1273 if (hh->copy_handler(r, &h[i], hh->conf) != NGX_OK) {
|
250
|
1274 ngx_http_finalize_request(r,
|
244
|
1275 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
64
|
1276 return;
|
|
1277 }
|
|
1278 }
|
|
1279 }
|
|
1280
|
122
|
1281 uri = &r->upstream->headers_in.x_accel_redirect->value;
|
|
1282 args.len = 0;
|
|
1283 args.data = NULL;
|
|
1284 flags = 0;
|
|
1285
|
|
1286 if (ngx_http_parse_unsafe_uri(r, uri, &args, &flags) != NGX_OK) {
|
244
|
1287 ngx_http_finalize_request(r, NGX_HTTP_NOT_FOUND);
|
122
|
1288 return;
|
|
1289 }
|
|
1290
|
|
1291 if (flags & NGX_HTTP_ZERO_IN_URI) {
|
|
1292 r->zero_in_uri = 1;
|
|
1293 }
|
|
1294
|
202
|
1295 if (r->method != NGX_HTTP_HEAD) {
|
|
1296 r->method = NGX_HTTP_GET;
|
|
1297 }
|
|
1298
|
122
|
1299 ngx_http_internal_redirect(r, uri, &args);
|
64
|
1300 return;
|
|
1301 }
|
|
1302
|
58
|
1303 part = &r->upstream->headers_in.headers.part;
|
|
1304 h = part->elts;
|
|
1305
|
|
1306 for (i = 0; /* void */; i++) {
|
28
|
1307
|
58
|
1308 if (i >= part->nelts) {
|
|
1309 if (part->next == NULL) {
|
|
1310 break;
|
|
1311 }
|
126
|
1312
|
58
|
1313 part = part->next;
|
|
1314 h = part->elts;
|
|
1315 i = 0;
|
|
1316 }
|
|
1317
|
198
|
1318 if (ngx_hash_find(&u->conf->hide_headers_hash, h[i].hash,
|
|
1319 h[i].lowcase_key, h[i].key.len))
|
58
|
1320 {
|
198
|
1321 continue;
|
|
1322 }
|
|
1323
|
|
1324 hh = ngx_hash_find(&umcf->headers_in_hash, h[i].hash,
|
|
1325 h[i].lowcase_key, h[i].key.len);
|
|
1326
|
|
1327 if (hh) {
|
|
1328 if (hh->copy_handler(r, &h[i], hh->conf) != NGX_OK) {
|
58
|
1329 ngx_http_upstream_finalize_request(r, u,
|
|
1330 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
1331 return;
|
|
1332 }
|
|
1333
|
|
1334 continue;
|
|
1335 }
|
|
1336
|
|
1337 if (ngx_http_upstream_copy_header_line(r, &h[i], 0) != NGX_OK) {
|
|
1338 ngx_http_upstream_finalize_request(r, u,
|
|
1339 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
1340 return;
|
|
1341 }
|
|
1342 }
|
|
1343
|
198
|
1344 if (r->headers_out.server && r->headers_out.server->value.data == NULL) {
|
|
1345 r->headers_out.server->hash = 0;
|
|
1346 }
|
|
1347
|
|
1348 if (r->headers_out.date && r->headers_out.date->value.data == NULL) {
|
|
1349 r->headers_out.date->hash = 0;
|
|
1350 }
|
|
1351
|
78
|
1352 r->headers_out.status = u->headers_in.status_n;
|
|
1353 r->headers_out.status_line = u->headers_in.status_line;
|
|
1354
|
130
|
1355 if (r->headers_out.content_length_n != -1) {
|
|
1356 u->length = (size_t) r->headers_out.content_length_n;
|
|
1357
|
|
1358 } else {
|
|
1359 u->length = NGX_MAX_SIZE_T_VALUE;
|
|
1360 }
|
|
1361
|
248
|
1362 if (!r->subrequest_in_memory) {
|
|
1363 ngx_http_upstream_send_response(r, u);
|
|
1364 return;
|
|
1365 }
|
|
1366
|
|
1367 /* subrequest content in memory */
|
|
1368
|
|
1369 if (u->input_filter == NULL) {
|
|
1370 u->input_filter_init = ngx_http_upstream_non_buffered_filter_init;
|
|
1371 u->input_filter = ngx_http_upstream_non_buffered_filter;
|
|
1372 u->input_filter_ctx = r;
|
|
1373 }
|
|
1374
|
|
1375 if (u->input_filter_init(u->input_filter_ctx) == NGX_ERROR) {
|
|
1376 ngx_http_upstream_finalize_request(r, u,
|
|
1377 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
1378 return;
|
|
1379 }
|
|
1380
|
|
1381 if (u->buffer.last - u->buffer.pos >= (ssize_t) u->length) {
|
|
1382 if (u->input_filter(u->input_filter_ctx, 0) == NGX_ERROR) {
|
|
1383 ngx_http_upstream_finalize_request(r, u, NGX_ERROR);
|
|
1384 return;
|
|
1385 }
|
|
1386
|
|
1387 ngx_http_upstream_finalize_request(r, u, 0);
|
|
1388 return;
|
|
1389 }
|
|
1390
|
|
1391 rev->handler = ngx_http_upstream_process_body_in_memory;
|
|
1392
|
|
1393 ngx_http_upstream_process_body_in_memory(rev);
|
|
1394 }
|
|
1395
|
|
1396
|
294
|
1397 static ngx_int_t
|
|
1398 ngx_http_upstream_test_connect(ngx_connection_t *c)
|
|
1399 {
|
|
1400 int err;
|
|
1401 socklen_t len;
|
|
1402
|
|
1403 #if (NGX_HAVE_KQUEUE)
|
|
1404
|
|
1405 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
296
|
1406 if (c->write->pending_eof) {
|
336
|
1407 c->log->action = "connecting to upstream";
|
296
|
1408 (void) ngx_connection_error(c, c->write->kq_errno,
|
|
1409 "kevent() reported that connect() failed");
|
|
1410 return NGX_ERROR;
|
|
1411 }
|
294
|
1412
|
|
1413 } else
|
|
1414 #endif
|
|
1415 {
|
296
|
1416 err = 0;
|
|
1417 len = sizeof(int);
|
|
1418
|
|
1419 /*
|
|
1420 * BSDs and Linux return 0 and set a pending error in err
|
|
1421 * Solaris returns -1 and sets errno
|
|
1422 */
|
|
1423
|
|
1424 if (getsockopt(c->fd, SOL_SOCKET, SO_ERROR, (void *) &err, &len)
|
|
1425 == -1)
|
|
1426 {
|
|
1427 err = ngx_errno;
|
|
1428 }
|
|
1429
|
|
1430 if (err) {
|
336
|
1431 c->log->action = "connecting to upstream";
|
296
|
1432 (void) ngx_connection_error(c, err, "connect() failed");
|
|
1433 return NGX_ERROR;
|
|
1434 }
|
294
|
1435 }
|
|
1436
|
|
1437 return NGX_OK;
|
|
1438 }
|
|
1439
|
|
1440
|
248
|
1441 static void
|
|
1442 ngx_http_upstream_process_body_in_memory(ngx_event_t *rev)
|
|
1443 {
|
|
1444 size_t size;
|
|
1445 ssize_t n;
|
|
1446 ngx_buf_t *b;
|
|
1447 ngx_connection_t *c;
|
|
1448 ngx_http_request_t *r;
|
|
1449 ngx_http_upstream_t *u;
|
|
1450
|
|
1451 c = rev->data;
|
|
1452 r = c->data;
|
|
1453 u = r->upstream;
|
|
1454
|
|
1455 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
1456 "http upstream process body on memory");
|
|
1457
|
|
1458 if (rev->timedout) {
|
|
1459 ngx_connection_error(c, NGX_ETIMEDOUT, "upstream timed out");
|
|
1460 ngx_http_upstream_finalize_request(r, u, NGX_ETIMEDOUT);
|
|
1461 return;
|
|
1462 }
|
|
1463
|
|
1464 b = &u->buffer;
|
|
1465
|
|
1466 for ( ;; ) {
|
|
1467
|
|
1468 size = b->end - b->last;
|
|
1469
|
|
1470 if (size == 0) {
|
|
1471 ngx_log_error(NGX_LOG_ALERT, c->log, 0,
|
|
1472 "upstream buffer is too small to read repsonse");
|
|
1473 ngx_http_upstream_finalize_request(r, u, NGX_ERROR);
|
|
1474 return;
|
|
1475 }
|
|
1476
|
|
1477 n = c->recv(c, b->last, size);
|
|
1478
|
|
1479 if (n == NGX_AGAIN) {
|
|
1480 break;
|
|
1481 }
|
|
1482
|
|
1483 if (n == 0 || n == NGX_ERROR) {
|
|
1484 ngx_http_upstream_finalize_request(r, u, n);
|
|
1485 return;
|
|
1486 }
|
|
1487
|
|
1488 if (u->input_filter(u->input_filter_ctx, n) == NGX_ERROR) {
|
|
1489 ngx_http_upstream_finalize_request(r, u, NGX_ERROR);
|
|
1490 return;
|
|
1491 }
|
|
1492
|
|
1493 if (!rev->ready) {
|
|
1494 break;
|
|
1495 }
|
|
1496 }
|
|
1497
|
|
1498 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
1499 ngx_http_upstream_finalize_request(r, u, NGX_ERROR);
|
|
1500 return;
|
|
1501 }
|
|
1502
|
|
1503 if (rev->active) {
|
|
1504 ngx_add_timer(rev, u->conf->read_timeout);
|
|
1505
|
|
1506 } else if (rev->timer_set) {
|
|
1507 ngx_del_timer(rev);
|
|
1508 }
|
230
|
1509 }
|
|
1510
|
|
1511
|
|
1512 static void
|
|
1513 ngx_http_upstream_send_response(ngx_http_request_t *r, ngx_http_upstream_t *u)
|
|
1514 {
|
|
1515 int tcp_nodelay;
|
|
1516 ssize_t size;
|
|
1517 ngx_int_t rc;
|
|
1518 ngx_event_pipe_t *p;
|
|
1519 ngx_connection_t *c;
|
|
1520 ngx_pool_cleanup_t *cl;
|
|
1521 ngx_pool_cleanup_file_t *clf;
|
|
1522 ngx_http_core_loc_conf_t *clcf;
|
|
1523
|
58
|
1524 rc = ngx_http_send_header(r);
|
28
|
1525
|
274
|
1526 if (rc == NGX_ERROR || rc > NGX_OK || r->post_action || r->header_only) {
|
34
|
1527 ngx_http_upstream_finalize_request(r, u, rc);
|
28
|
1528 return;
|
|
1529 }
|
|
1530
|
|
1531 u->header_sent = 1;
|
|
1532
|
122
|
1533 if (r->request_body && r->request_body->temp_file) {
|
112
|
1534 for (cl = r->pool->cleanup; cl; cl = cl->next) {
|
|
1535 if (cl->handler == ngx_pool_cleanup_file) {
|
|
1536 clf = cl->data;
|
|
1537
|
|
1538 if (clf->fd == r->request_body->temp_file->file.fd) {
|
|
1539 cl->handler(clf);
|
|
1540 cl->handler = NULL;
|
208
|
1541 r->request_body->temp_file->file.fd = NGX_INVALID_FILE;
|
112
|
1542 break;
|
|
1543 }
|
|
1544 }
|
|
1545 }
|
|
1546 }
|
|
1547
|
132
|
1548 c = r->connection;
|
|
1549
|
130
|
1550 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
1551
|
198
|
1552 if (!u->buffering) {
|
130
|
1553
|
|
1554 if (u->input_filter == NULL) {
|
|
1555 u->input_filter_init = ngx_http_upstream_non_buffered_filter_init;
|
|
1556 u->input_filter = ngx_http_upstream_non_buffered_filter;
|
|
1557 u->input_filter_ctx = r;
|
|
1558 }
|
|
1559
|
|
1560 u->peer.connection->read->handler =
|
|
1561 ngx_http_upstream_process_non_buffered_body;
|
|
1562 r->write_event_handler =
|
|
1563 ngx_http_upstream_process_non_buffered_downstream;
|
|
1564
|
|
1565 r->limit_rate = 0;
|
|
1566
|
|
1567 if (u->input_filter_init(u->input_filter_ctx) == NGX_ERROR) {
|
|
1568 ngx_http_upstream_finalize_request(r, u, 0);
|
|
1569 return;
|
|
1570 }
|
|
1571
|
132
|
1572 if (clcf->tcp_nodelay && c->tcp_nodelay == NGX_TCP_NODELAY_UNSET) {
|
|
1573 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "tcp_nodelay");
|
|
1574
|
|
1575 tcp_nodelay = 1;
|
|
1576
|
|
1577 if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY,
|
|
1578 (const void *) &tcp_nodelay, sizeof(int)) == -1)
|
|
1579 {
|
|
1580 ngx_connection_error(c, ngx_socket_errno,
|
|
1581 "setsockopt(TCP_NODELAY) failed");
|
|
1582 ngx_http_upstream_finalize_request(r, u, 0);
|
|
1583 return;
|
|
1584 }
|
|
1585
|
|
1586 c->tcp_nodelay = NGX_TCP_NODELAY_SET;
|
|
1587 }
|
|
1588
|
130
|
1589 size = u->buffer.last - u->buffer.pos;
|
|
1590
|
|
1591 if (size) {
|
|
1592 u->buffer.last = u->buffer.pos;
|
|
1593
|
|
1594 if (u->input_filter(u->input_filter_ctx, size) == NGX_ERROR) {
|
|
1595 ngx_http_upstream_finalize_request(r, u, 0);
|
|
1596 return;
|
|
1597 }
|
|
1598
|
132
|
1599 ngx_http_upstream_process_non_buffered_body(c->write);
|
130
|
1600
|
|
1601 } else {
|
|
1602 u->buffer.pos = u->buffer.start;
|
|
1603 u->buffer.last = u->buffer.start;
|
|
1604
|
|
1605 if (ngx_http_send_special(r, NGX_HTTP_FLUSH) == NGX_ERROR) {
|
|
1606 ngx_http_upstream_finalize_request(r, u, 0);
|
|
1607 return;
|
|
1608 }
|
336
|
1609
|
|
1610 if (u->peer.connection->read->ready) {
|
|
1611 ngx_http_upstream_process_non_buffered_body(
|
|
1612 u->peer.connection->read);
|
|
1613 }
|
130
|
1614 }
|
|
1615
|
|
1616 return;
|
|
1617 }
|
|
1618
|
28
|
1619 /* TODO: preallocate event_pipe bufs, look "Content-Length" */
|
|
1620
|
|
1621 #if 0
|
|
1622
|
|
1623 if (u->cache && u->cache->ctx.file.fd != NGX_INVALID_FILE) {
|
|
1624 if (ngx_close_file(u->cache->ctx.file.fd) == NGX_FILE_ERROR) {
|
132
|
1625 ngx_log_error(NGX_LOG_ALERT, c->log, ngx_errno,
|
28
|
1626 ngx_close_file_n " \"%s\" failed",
|
|
1627 u->cache->ctx.file.name.data);
|
|
1628 }
|
|
1629 }
|
|
1630
|
340
|
1631 if (u->cacheable) {
|
130
|
1632 header = (ngx_http_cache_header_t *) u->buffer->start;
|
28
|
1633
|
|
1634 header->expires = u->cache->ctx.expires;
|
|
1635 header->last_modified = u->cache->ctx.last_modified;
|
|
1636 header->date = u->cache->ctx.date;
|
|
1637 header->length = r->headers_out.content_length_n;
|
|
1638 u->cache->ctx.length = r->headers_out.content_length_n;
|
|
1639
|
|
1640 header->key_len = u->cache->ctx.key0.len;
|
|
1641 ngx_memcpy(&header->key, u->cache->ctx.key0.data, header->key_len);
|
|
1642 header->key[header->key_len] = LF;
|
|
1643 }
|
|
1644
|
|
1645 #endif
|
|
1646
|
130
|
1647 p = u->pipe;
|
28
|
1648
|
|
1649 p->output_filter = (ngx_event_pipe_output_filter_pt) ngx_http_output_filter;
|
|
1650 p->output_ctx = r;
|
|
1651 p->tag = u->output.tag;
|
126
|
1652 p->bufs = u->conf->bufs;
|
28
|
1653 p->busy_size = u->conf->busy_buffers_size;
|
|
1654 p->upstream = u->peer.connection;
|
132
|
1655 p->downstream = c;
|
28
|
1656 p->pool = r->pool;
|
132
|
1657 p->log = c->log;
|
126
|
1658
|
340
|
1659 p->cacheable = u->cacheable || u->store;
|
28
|
1660
|
50
|
1661 p->temp_file = ngx_pcalloc(r->pool, sizeof(ngx_temp_file_t));
|
|
1662 if (p->temp_file == NULL) {
|
28
|
1663 ngx_http_upstream_finalize_request(r, u, 0);
|
|
1664 return;
|
|
1665 }
|
|
1666
|
|
1667 p->temp_file->file.fd = NGX_INVALID_FILE;
|
132
|
1668 p->temp_file->file.log = c->log;
|
28
|
1669 p->temp_file->path = u->conf->temp_path;
|
|
1670 p->temp_file->pool = r->pool;
|
126
|
1671
|
340
|
1672 if (u->cacheable || u->store) {
|
28
|
1673 p->temp_file->persistent = 1;
|
318
|
1674
|
28
|
1675 } else {
|
216
|
1676 p->temp_file->log_level = NGX_LOG_WARN;
|
28
|
1677 p->temp_file->warn = "an upstream response is buffered "
|
|
1678 "to a temporary file";
|
|
1679 }
|
|
1680
|
|
1681 p->max_temp_file_size = u->conf->max_temp_file_size;
|
|
1682 p->temp_file_write_size = u->conf->temp_file_write_size;
|
|
1683
|
50
|
1684 p->preread_bufs = ngx_alloc_chain_link(r->pool);
|
|
1685 if (p->preread_bufs == NULL) {
|
28
|
1686 ngx_http_upstream_finalize_request(r, u, 0);
|
|
1687 return;
|
|
1688 }
|
318
|
1689
|
130
|
1690 p->preread_bufs->buf = &u->buffer;
|
28
|
1691 p->preread_bufs->next = NULL;
|
130
|
1692 u->buffer.recycled = 1;
|
|
1693
|
|
1694 p->preread_size = u->buffer.last - u->buffer.pos;
|
28
|
1695
|
340
|
1696 if (u->cacheable) {
|
318
|
1697
|
28
|
1698 p->buf_to_file = ngx_calloc_buf(r->pool);
|
|
1699 if (p->buf_to_file == NULL) {
|
|
1700 ngx_http_upstream_finalize_request(r, u, 0);
|
|
1701 return;
|
|
1702 }
|
318
|
1703
|
130
|
1704 p->buf_to_file->pos = u->buffer.start;
|
|
1705 p->buf_to_file->last = u->buffer.pos;
|
28
|
1706 p->buf_to_file->temporary = 1;
|
|
1707 }
|
|
1708
|
|
1709 if (ngx_event_flags & NGX_USE_AIO_EVENT) {
|
|
1710 /* the posted aio operation may currupt a shadow buffer */
|
|
1711 p->single_buf = 1;
|
|
1712 }
|
|
1713
|
|
1714 /* TODO: p->free_bufs = 0 if use ngx_create_chain_of_bufs() */
|
|
1715 p->free_bufs = 1;
|
|
1716
|
|
1717 /*
|
130
|
1718 * event_pipe would do u->buffer.last += p->preread_size
|
28
|
1719 * as though these bytes were read
|
|
1720 */
|
130
|
1721 u->buffer.last = u->buffer.pos;
|
28
|
1722
|
|
1723 if (u->conf->cyclic_temp_file) {
|
|
1724
|
|
1725 /*
|
|
1726 * we need to disable the use of sendfile() if we use cyclic temp file
|
|
1727 * because the writing a new data may interfere with sendfile()
|
|
1728 * that uses the same kernel file pages (at least on FreeBSD)
|
|
1729 */
|
|
1730
|
|
1731 p->cyclic_temp_file = 1;
|
132
|
1732 c->sendfile = 0;
|
28
|
1733
|
|
1734 } else {
|
|
1735 p->cyclic_temp_file = 0;
|
|
1736 }
|
|
1737
|
|
1738 p->read_timeout = u->conf->read_timeout;
|
|
1739 p->send_timeout = clcf->send_timeout;
|
|
1740 p->send_lowat = clcf->send_lowat;
|
|
1741
|
58
|
1742 u->peer.connection->read->handler = ngx_http_upstream_process_body;
|
|
1743 r->write_event_handler = ngx_http_upstream_process_downstream;
|
28
|
1744
|
|
1745 ngx_http_upstream_process_body(u->peer.connection->read);
|
|
1746 }
|
|
1747
|
|
1748
|
36
|
1749 static void
|
130
|
1750 ngx_http_upstream_process_non_buffered_downstream(ngx_http_request_t *r)
|
|
1751 {
|
|
1752 ngx_http_upstream_process_non_buffered_body(r->connection->write);
|
|
1753 }
|
|
1754
|
|
1755
|
|
1756 static void
|
|
1757 ngx_http_upstream_process_non_buffered_body(ngx_event_t *ev)
|
|
1758 {
|
|
1759 size_t size;
|
|
1760 ssize_t n;
|
|
1761 ngx_buf_t *b;
|
132
|
1762 ngx_int_t rc;
|
130
|
1763 ngx_uint_t do_write;
|
260
|
1764 ngx_connection_t *c, *downstream, *upstream;
|
130
|
1765 ngx_http_request_t *r;
|
|
1766 ngx_http_upstream_t *u;
|
|
1767 ngx_http_core_loc_conf_t *clcf;
|
|
1768
|
|
1769 c = ev->data;
|
244
|
1770 r = c->data;
|
|
1771 u = r->upstream;
|
130
|
1772
|
|
1773 if (ev->write) {
|
|
1774 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
1775 "http upstream process non buffered downstream");
|
|
1776 c->log->action = "sending to client";
|
|
1777
|
|
1778 } else {
|
|
1779 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
1780 "http upstream process non buffered upstream");
|
|
1781 c->log->action = "reading upstream";
|
|
1782 }
|
|
1783
|
|
1784 if (ev->timedout) {
|
|
1785 if (ev->write) {
|
|
1786 c->timedout = 1;
|
160
|
1787 ngx_connection_error(c, NGX_ETIMEDOUT, "client timed out");
|
|
1788
|
130
|
1789 } else {
|
160
|
1790 ngx_connection_error(c, NGX_ETIMEDOUT, "upstream timed out");
|
130
|
1791 }
|
244
|
1792
|
|
1793 ngx_http_upstream_finalize_request(r, u, 0);
|
|
1794 return;
|
130
|
1795 }
|
|
1796
|
260
|
1797 downstream = r->connection;
|
|
1798 upstream = u->peer.connection;
|
130
|
1799
|
|
1800 b = &u->buffer;
|
|
1801
|
|
1802 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
1803
|
206
|
1804 do_write = ev->write || u->length == 0;
|
130
|
1805
|
|
1806 for ( ;; ) {
|
|
1807
|
|
1808 if (do_write) {
|
|
1809
|
|
1810 if (u->out_bufs || u->busy_bufs) {
|
132
|
1811 rc = ngx_http_output_filter(r, u->out_bufs);
|
|
1812
|
260
|
1813 if (downstream->destroyed) {
|
132
|
1814 return;
|
|
1815 }
|
|
1816
|
|
1817 if (rc == NGX_ERROR) {
|
130
|
1818 ngx_http_upstream_finalize_request(r, u, 0);
|
|
1819 return;
|
|
1820 }
|
|
1821
|
|
1822 ngx_chain_update_chains(&u->free_bufs, &u->busy_bufs,
|
|
1823 &u->out_bufs, u->output.tag);
|
|
1824 }
|
|
1825
|
|
1826 if (u->busy_bufs == NULL) {
|
|
1827
|
|
1828 if (u->length == 0
|
260
|
1829 || upstream->read->eof
|
|
1830 || upstream->read->error)
|
130
|
1831 {
|
|
1832 ngx_http_upstream_finalize_request(r, u, 0);
|
|
1833 return;
|
|
1834 }
|
|
1835
|
|
1836 b->pos = b->start;
|
|
1837 b->last = b->start;
|
|
1838 }
|
|
1839 }
|
|
1840
|
|
1841 size = b->end - b->last;
|
|
1842
|
|
1843 if (size > u->length) {
|
|
1844 size = u->length;
|
|
1845 }
|
|
1846
|
260
|
1847 if (size && upstream->read->ready) {
|
|
1848
|
|
1849 n = upstream->recv(upstream, b->last, size);
|
130
|
1850
|
|
1851 if (n == NGX_AGAIN) {
|
|
1852 break;
|
|
1853 }
|
|
1854
|
|
1855 if (n > 0) {
|
|
1856 if (u->input_filter(u->input_filter_ctx, n) == NGX_ERROR) {
|
|
1857 ngx_http_upstream_finalize_request(r, u, 0);
|
|
1858 return;
|
|
1859 }
|
|
1860 }
|
|
1861
|
|
1862 do_write = 1;
|
|
1863
|
|
1864 continue;
|
|
1865 }
|
|
1866
|
|
1867 break;
|
|
1868 }
|
|
1869
|
260
|
1870 if (downstream->data == r) {
|
|
1871 if (ngx_handle_write_event(downstream->write, clcf->send_lowat)
|
132
|
1872 == NGX_ERROR)
|
|
1873 {
|
|
1874 ngx_http_upstream_finalize_request(r, u, 0);
|
|
1875 return;
|
|
1876 }
|
130
|
1877 }
|
|
1878
|
276
|
1879 if (downstream->write->active && !downstream->write->ready) {
|
260
|
1880 ngx_add_timer(downstream->write, clcf->send_timeout);
|
|
1881
|
|
1882 } else if (downstream->write->timer_set) {
|
|
1883 ngx_del_timer(downstream->write);
|
130
|
1884 }
|
|
1885
|
260
|
1886 if (ngx_handle_read_event(upstream->read, 0) == NGX_ERROR) {
|
130
|
1887 ngx_http_upstream_finalize_request(r, u, 0);
|
|
1888 return;
|
|
1889 }
|
|
1890
|
276
|
1891 if (upstream->read->active && !upstream->read->ready) {
|
260
|
1892 ngx_add_timer(upstream->read, u->conf->read_timeout);
|
|
1893
|
|
1894 } else if (upstream->read->timer_set) {
|
|
1895 ngx_del_timer(upstream->read);
|
130
|
1896 }
|
|
1897 }
|
|
1898
|
|
1899
|
|
1900 static ngx_int_t
|
|
1901 ngx_http_upstream_non_buffered_filter_init(void *data)
|
|
1902 {
|
|
1903 return NGX_OK;
|
|
1904 }
|
|
1905
|
|
1906
|
|
1907 static ngx_int_t
|
|
1908 ngx_http_upstream_non_buffered_filter(void *data, ssize_t bytes)
|
|
1909 {
|
|
1910 ngx_http_request_t *r = data;
|
|
1911
|
|
1912 ngx_buf_t *b;
|
|
1913 ngx_chain_t *cl, **ll;
|
|
1914 ngx_http_upstream_t *u;
|
|
1915
|
|
1916 u = r->upstream;
|
|
1917
|
|
1918 for (cl = u->out_bufs, ll = &u->out_bufs; cl; cl = cl->next) {
|
|
1919 ll = &cl->next;
|
|
1920 }
|
|
1921
|
|
1922 cl = ngx_chain_get_free_buf(r->pool, &u->free_bufs);
|
|
1923 if (cl == NULL) {
|
|
1924 return NGX_ERROR;
|
|
1925 }
|
|
1926
|
|
1927 *ll = cl;
|
|
1928
|
|
1929 cl->buf->flush = 1;
|
|
1930 cl->buf->memory = 1;
|
|
1931
|
|
1932 b = &u->buffer;
|
|
1933
|
|
1934 cl->buf->pos = b->last;
|
|
1935 b->last += bytes;
|
|
1936 cl->buf->last = b->last;
|
|
1937
|
|
1938 if (u->length == NGX_MAX_SIZE_T_VALUE) {
|
|
1939 return NGX_OK;
|
|
1940 }
|
|
1941
|
|
1942 u->length -= bytes;
|
|
1943
|
|
1944 return NGX_OK;
|
|
1945 }
|
|
1946
|
|
1947
|
|
1948 static void
|
58
|
1949 ngx_http_upstream_process_downstream(ngx_http_request_t *r)
|
|
1950 {
|
|
1951 ngx_http_upstream_process_body(r->connection->write);
|
|
1952 }
|
|
1953
|
|
1954
|
|
1955 static void
|
36
|
1956 ngx_http_upstream_process_body(ngx_event_t *ev)
|
28
|
1957 {
|
58
|
1958 ngx_event_pipe_t *p;
|
132
|
1959 ngx_connection_t *c, *downstream;
|
284
|
1960 ngx_http_log_ctx_t *ctx;
|
28
|
1961 ngx_http_request_t *r;
|
|
1962 ngx_http_upstream_t *u;
|
|
1963
|
|
1964 c = ev->data;
|
|
1965 r = c->data;
|
|
1966 u = r->upstream;
|
132
|
1967 downstream = r->connection;
|
28
|
1968
|
|
1969 if (ev->write) {
|
32
|
1970 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
1971 "http upstream process downstream");
|
|
1972 c->log->action = "sending to client";
|
126
|
1973
|
28
|
1974 } else {
|
32
|
1975 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
1976 "http upstream process upstream");
|
|
1977 c->log->action = "reading upstream";
|
284
|
1978
|
|
1979 ctx = c->log->data;
|
|
1980 ctx->current_request = r;
|
28
|
1981 }
|
126
|
1982
|
130
|
1983 p = u->pipe;
|
28
|
1984
|
|
1985 if (ev->timedout) {
|
|
1986 if (ev->write) {
|
76
|
1987 if (ev->delayed) {
|
|
1988
|
|
1989 ev->timedout = 0;
|
|
1990 ev->delayed = 0;
|
|
1991
|
|
1992 if (!ev->ready) {
|
|
1993 ngx_add_timer(ev, p->send_timeout);
|
|
1994
|
|
1995 if (ngx_handle_write_event(ev, p->send_lowat) == NGX_ERROR)
|
|
1996 {
|
|
1997 ngx_http_upstream_finalize_request(r, u, 0);
|
|
1998 return;
|
|
1999 }
|
|
2000
|
|
2001 return;
|
|
2002 }
|
|
2003
|
|
2004 if (ngx_event_pipe(p, ev->write) == NGX_ABORT) {
|
132
|
2005
|
|
2006 if (downstream->destroyed) {
|
|
2007 return;
|
|
2008 }
|
|
2009
|
76
|
2010 ngx_http_upstream_finalize_request(r, u, 0);
|
|
2011 return;
|
|
2012 }
|
|
2013
|
|
2014 } else {
|
|
2015 p->downstream_error = 1;
|
126
|
2016 c->timedout = 1;
|
160
|
2017 ngx_connection_error(c, NGX_ETIMEDOUT, "client timed out");
|
76
|
2018 }
|
28
|
2019
|
|
2020 } else {
|
126
|
2021 p->upstream_error = 1;
|
160
|
2022 ngx_connection_error(c, NGX_ETIMEDOUT, "upstream timed out");
|
28
|
2023 }
|
|
2024
|
|
2025 } else {
|
76
|
2026 if (ev->write && ev->delayed) {
|
|
2027 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
2028 "http downstream delayed");
|
|
2029
|
|
2030 if (ngx_handle_write_event(ev, p->send_lowat) == NGX_ERROR) {
|
|
2031 return;
|
|
2032 }
|
|
2033
|
|
2034 return;
|
|
2035 }
|
|
2036
|
28
|
2037 if (ngx_event_pipe(p, ev->write) == NGX_ABORT) {
|
132
|
2038
|
|
2039 if (downstream->destroyed) {
|
|
2040 return;
|
|
2041 }
|
|
2042
|
28
|
2043 ngx_http_upstream_finalize_request(r, u, 0);
|
|
2044 return;
|
|
2045 }
|
|
2046 }
|
126
|
2047
|
28
|
2048 if (u->peer.connection) {
|
|
2049
|
318
|
2050 if (u->store) {
|
|
2051
|
|
2052 if (p->upstream_eof && u->headers_in.status_n == NGX_HTTP_OK) {
|
|
2053
|
|
2054 ngx_http_upstream_store(r, u);
|
|
2055
|
|
2056 } else if ((p->upstream_error
|
|
2057 || (p->upstream_eof
|
|
2058 && u->headers_in.status_n != NGX_HTTP_OK))
|
|
2059 && u->pipe->temp_file->file.fd != NGX_INVALID_FILE)
|
|
2060 {
|
|
2061 if (ngx_delete_file(u->pipe->temp_file->file.name.data)
|
|
2062 == NGX_FILE_ERROR)
|
|
2063 {
|
|
2064 ngx_log_error(NGX_LOG_CRIT, r->connection->log, ngx_errno,
|
|
2065 ngx_delete_file_n " \"%s\" failed",
|
|
2066 u->pipe->temp_file->file.name.data);
|
|
2067 }
|
|
2068 }
|
|
2069 }
|
|
2070
|
28
|
2071 #if (NGX_HTTP_FILE_CACHE)
|
|
2072
|
340
|
2073 if (p->upstream_done && u->cacheable) {
|
28
|
2074 if (ngx_http_cache_update(r) == NGX_ERROR) {
|
|
2075 ngx_http_busy_unlock(u->conf->busy_lock, &u->busy_lock);
|
|
2076 ngx_http_upstream_finalize_request(r, u, 0);
|
|
2077 return;
|
|
2078 }
|
|
2079
|
340
|
2080 } else if (p->upstream_eof && u->cacheable) {
|
28
|
2081
|
|
2082 /* TODO: check length & update cache */
|
|
2083
|
|
2084 if (ngx_http_cache_update(r) == NGX_ERROR) {
|
|
2085 ngx_http_busy_unlock(u->conf->busy_lock, &u->busy_lock);
|
|
2086 ngx_http_upstream_finalize_request(r, u, 0);
|
|
2087 return;
|
|
2088 }
|
|
2089 }
|
|
2090
|
|
2091 #endif
|
|
2092
|
|
2093 if (p->upstream_done || p->upstream_eof || p->upstream_error) {
|
32
|
2094 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
2095 "http upstream exit: %p", p->out);
|
28
|
2096 #if 0
|
|
2097 ngx_http_busy_unlock(u->conf->busy_lock, &u->busy_lock);
|
|
2098 #endif
|
|
2099 ngx_http_upstream_finalize_request(r, u, 0);
|
|
2100 return;
|
|
2101 }
|
|
2102 }
|
|
2103
|
|
2104 if (p->downstream_error) {
|
32
|
2105 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
2106 "http upstream downstream error");
|
28
|
2107
|
340
|
2108 if (!u->cacheable && u->peer.connection) {
|
28
|
2109 ngx_http_upstream_finalize_request(r, u, 0);
|
|
2110 }
|
|
2111 }
|
|
2112 }
|
|
2113
|
|
2114
|
36
|
2115 static void
|
318
|
2116 ngx_http_upstream_store(ngx_http_request_t *r, ngx_http_upstream_t *u)
|
|
2117 {
|
|
2118 char *failed;
|
|
2119 u_char *name;
|
|
2120 size_t root;
|
|
2121 time_t lm;
|
|
2122 ngx_err_t err;
|
|
2123 ngx_str_t *temp, path, *last_modified;
|
|
2124 ngx_temp_file_t *tf;
|
|
2125
|
|
2126 if (u->pipe->temp_file->file.fd == NGX_INVALID_FILE) {
|
|
2127
|
|
2128 /* create file for empty 200 response */
|
|
2129
|
|
2130 tf = ngx_pcalloc(r->pool, sizeof(ngx_temp_file_t));
|
|
2131 if (tf == NULL) {
|
|
2132 return;
|
|
2133 }
|
|
2134
|
|
2135 tf->file.fd = NGX_INVALID_FILE;
|
|
2136 tf->file.log = r->connection->log;
|
|
2137 tf->path = u->conf->temp_path;
|
|
2138 tf->pool = r->pool;
|
|
2139 tf->persistent = 1;
|
|
2140
|
|
2141 if (ngx_create_temp_file(&tf->file, tf->path, tf->pool,
|
|
2142 tf->persistent, tf->clean, tf->access)
|
|
2143 != NGX_OK)
|
|
2144 {
|
|
2145 return;
|
|
2146 }
|
|
2147
|
|
2148 u->pipe->temp_file = tf;
|
|
2149 }
|
|
2150
|
|
2151 temp = &u->pipe->temp_file->file.name;
|
|
2152
|
|
2153 #if !(NGX_WIN32)
|
|
2154
|
320
|
2155 if (ngx_change_file_access(temp->data, u->conf->store_access)
|
|
2156 == NGX_FILE_ERROR)
|
|
2157 {
|
318
|
2158 err = ngx_errno;
|
|
2159 failed = ngx_change_file_access_n;
|
|
2160 name = temp->data;
|
|
2161
|
|
2162 goto failed;
|
|
2163 }
|
|
2164
|
|
2165 #endif
|
|
2166
|
|
2167 if (r->upstream->headers_in.last_modified) {
|
|
2168
|
|
2169 last_modified = &r->upstream->headers_in.last_modified->value;
|
|
2170
|
|
2171 lm = ngx_http_parse_time(last_modified->data, last_modified->len);
|
|
2172
|
|
2173 if (lm != NGX_ERROR) {
|
|
2174 if (ngx_set_file_time(temp->data, u->pipe->temp_file->file.fd, lm)
|
|
2175 != NGX_OK)
|
|
2176 {
|
|
2177 err = ngx_errno;
|
|
2178 failed = ngx_set_file_time_n;
|
|
2179 name = temp->data;
|
320
|
2180
|
318
|
2181 goto failed;
|
|
2182 }
|
|
2183 }
|
|
2184 }
|
|
2185
|
320
|
2186 if (u->conf->store_lengths == NULL) {
|
|
2187
|
|
2188 ngx_http_map_uri_to_path(r, &path, &root, 0);
|
|
2189
|
|
2190 } else {
|
|
2191 if (ngx_http_script_run(r, &path, u->conf->store_lengths->elts, 0,
|
|
2192 u->conf->store_values->elts)
|
|
2193 == NULL)
|
|
2194 {
|
|
2195 return;
|
|
2196 }
|
|
2197 }
|
318
|
2198
|
|
2199 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
2200 "upstream stores \"%s\" to \"%s\"", temp->data, path.data);
|
|
2201
|
|
2202 failed = ngx_rename_file_n;
|
|
2203 name = path.data;
|
|
2204
|
|
2205 if (ngx_rename_file(temp->data, path.data) != NGX_FILE_ERROR) {
|
|
2206 return;
|
|
2207 }
|
|
2208
|
|
2209 err = ngx_errno;
|
|
2210
|
|
2211 if (err == NGX_ENOENT) {
|
|
2212
|
320
|
2213 err = ngx_create_full_path(path.data,
|
|
2214 ngx_dir_access(u->conf->store_access));
|
318
|
2215 if (err == 0) {
|
|
2216 if (ngx_rename_file(temp->data, path.data) != NGX_FILE_ERROR) {
|
|
2217 return;
|
|
2218 }
|
|
2219
|
|
2220 err = ngx_errno;
|
|
2221 }
|
|
2222 }
|
|
2223
|
|
2224 #if (NGX_WIN32)
|
|
2225
|
|
2226 if (err == NGX_EEXIST) {
|
|
2227 if (ngx_win32_rename_file(temp, &path, r->pool) != NGX_ERROR) {
|
|
2228
|
|
2229 if (ngx_rename_file(temp->data, path.data) != NGX_FILE_ERROR) {
|
|
2230 return;
|
|
2231 }
|
|
2232 }
|
|
2233
|
|
2234 err = ngx_errno;
|
|
2235 }
|
|
2236
|
|
2237 #endif
|
|
2238
|
|
2239 failed:
|
|
2240
|
|
2241 if (ngx_delete_file(temp->data) == NGX_FILE_ERROR) {
|
|
2242 ngx_log_error(NGX_LOG_CRIT, r->connection->log, ngx_errno,
|
|
2243 ngx_delete_file_n " \"%s\" failed",
|
|
2244 temp->data);
|
|
2245 }
|
|
2246
|
|
2247 ngx_log_error(NGX_LOG_CRIT, r->connection->log, err,
|
|
2248 "%s \"%s\" failed", failed, name);
|
|
2249 }
|
|
2250
|
|
2251
|
|
2252 static void
|
36
|
2253 ngx_http_upstream_dummy_handler(ngx_event_t *wev)
|
28
|
2254 {
|
|
2255 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
2256 "http upstream dummy handler");
|
|
2257 }
|
|
2258
|
|
2259
|
36
|
2260 static void
|
|
2261 ngx_http_upstream_next(ngx_http_request_t *r, ngx_http_upstream_t *u,
|
|
2262 ngx_uint_t ft_type)
|
28
|
2263 {
|
260
|
2264 ngx_uint_t status, state;
|
28
|
2265
|
|
2266 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
260
|
2267 "http next upstream, %xi", ft_type);
|
28
|
2268
|
|
2269 #if 0
|
|
2270 ngx_http_busy_unlock(u->conf->busy_lock, &u->busy_lock);
|
|
2271 #endif
|
|
2272
|
74
|
2273 if (ft_type == NGX_HTTP_UPSTREAM_FT_HTTP_404) {
|
260
|
2274 state = NGX_PEER_NEXT;
|
74
|
2275 } else {
|
260
|
2276 state = NGX_PEER_FAILED;
|
28
|
2277 }
|
74
|
2278
|
326
|
2279 if (ft_type != NGX_HTTP_UPSTREAM_FT_NOLIVE) {
|
|
2280 u->peer.free(&u->peer, u->peer.data, state);
|
|
2281 }
|
74
|
2282
|
28
|
2283 if (ft_type == NGX_HTTP_UPSTREAM_FT_TIMEOUT) {
|
|
2284 ngx_log_error(NGX_LOG_ERR, r->connection->log, NGX_ETIMEDOUT,
|
|
2285 "upstream timed out");
|
|
2286 }
|
126
|
2287
|
28
|
2288 if (u->peer.cached && ft_type == NGX_HTTP_UPSTREAM_FT_ERROR) {
|
|
2289 status = 0;
|
|
2290
|
|
2291 } else {
|
|
2292 switch(ft_type) {
|
|
2293
|
|
2294 case NGX_HTTP_UPSTREAM_FT_TIMEOUT:
|
|
2295 status = NGX_HTTP_GATEWAY_TIME_OUT;
|
|
2296 break;
|
|
2297
|
|
2298 case NGX_HTTP_UPSTREAM_FT_HTTP_500:
|
|
2299 status = NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
2300 break;
|
|
2301
|
|
2302 case NGX_HTTP_UPSTREAM_FT_HTTP_404:
|
|
2303 status = NGX_HTTP_NOT_FOUND;
|
|
2304 break;
|
|
2305
|
|
2306 /*
|
|
2307 * NGX_HTTP_UPSTREAM_FT_BUSY_LOCK and NGX_HTTP_UPSTREAM_FT_MAX_WAITING
|
|
2308 * never reach here
|
|
2309 */
|
|
2310
|
|
2311 default:
|
|
2312 status = NGX_HTTP_BAD_GATEWAY;
|
|
2313 }
|
|
2314 }
|
|
2315
|
132
|
2316 if (r->connection->error) {
|
28
|
2317 ngx_http_upstream_finalize_request(r, u,
|
|
2318 NGX_HTTP_CLIENT_CLOSED_REQUEST);
|
|
2319 return;
|
|
2320 }
|
|
2321
|
|
2322 if (status) {
|
|
2323 u->state->status = status;
|
|
2324
|
74
|
2325 if (u->peer.tries == 0 || !(u->conf->next_upstream & ft_type)) {
|
28
|
2326
|
|
2327 #if (NGX_HTTP_CACHE)
|
|
2328
|
|
2329 if (u->stale && (u->conf->use_stale & ft_type)) {
|
|
2330 ngx_http_upstream_finalize_request(r, u,
|
74
|
2331 ngx_http_send_cached_response(r));
|
28
|
2332 return;
|
|
2333 }
|
|
2334
|
|
2335 #endif
|
|
2336
|
|
2337 ngx_http_upstream_finalize_request(r, u, status);
|
|
2338 return;
|
|
2339 }
|
|
2340 }
|
|
2341
|
|
2342 if (u->peer.connection) {
|
|
2343 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
2344 "close http upstream connection: %d",
|
|
2345 u->peer.connection->fd);
|
126
|
2346 #if (NGX_HTTP_SSL)
|
260
|
2347
|
126
|
2348 if (u->peer.connection->ssl) {
|
260
|
2349 u->peer.connection->ssl->no_wait_shutdown = 1;
|
|
2350 u->peer.connection->ssl->no_send_shutdown = 1;
|
|
2351
|
|
2352 (void) ngx_ssl_shutdown(u->peer.connection);
|
126
|
2353 }
|
|
2354 #endif
|
260
|
2355
|
28
|
2356 ngx_close_connection(u->peer.connection);
|
|
2357 }
|
|
2358
|
|
2359 #if 0
|
|
2360 if (u->conf->busy_lock && !u->busy_locked) {
|
|
2361 ngx_http_upstream_busy_lock(p);
|
|
2362 return;
|
|
2363 }
|
|
2364 #endif
|
|
2365
|
|
2366 ngx_http_upstream_connect(r, u);
|
|
2367 }
|
|
2368
|
|
2369
|
36
|
2370 static void
|
118
|
2371 ngx_http_upstream_cleanup(void *data)
|
|
2372 {
|
|
2373 ngx_http_request_t *r = data;
|
|
2374
|
|
2375 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
2376 "cleanup http upstream request: \"%V\"", &r->uri);
|
|
2377
|
348
|
2378 if (r->upstream->resolved && r->upstream->resolved->ctx) {
|
|
2379 ngx_resolve_name_done(r->upstream->resolved->ctx);
|
|
2380 }
|
|
2381
|
118
|
2382 ngx_http_upstream_finalize_request(r, r->upstream, NGX_DONE);
|
|
2383 }
|
|
2384
|
|
2385
|
|
2386 static void
|
36
|
2387 ngx_http_upstream_finalize_request(ngx_http_request_t *r,
|
|
2388 ngx_http_upstream_t *u, ngx_int_t rc)
|
28
|
2389 {
|
262
|
2390 ngx_time_t *tp;
|
112
|
2391
|
32
|
2392 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
2393 "finalize http upstream request: %i", rc);
|
28
|
2394
|
118
|
2395 *u->cleanup = NULL;
|
|
2396
|
348
|
2397 if (u->state && u->state->response_sec) {
|
112
|
2398 tp = ngx_timeofday();
|
262
|
2399 u->state->response_sec = tp->sec - u->state->response_sec;
|
|
2400 u->state->response_msec = tp->msec - u->state->response_msec;
|
112
|
2401 }
|
|
2402
|
28
|
2403 u->finalize_request(r, rc);
|
|
2404
|
348
|
2405 if (u->peer.free) {
|
|
2406 u->peer.free(&u->peer, u->peer.data, 0);
|
|
2407 }
|
260
|
2408
|
28
|
2409 if (u->peer.connection) {
|
260
|
2410
|
126
|
2411 #if (NGX_HTTP_SSL)
|
|
2412
|
|
2413 /* TODO: do not shutdown persistent connection */
|
|
2414
|
|
2415 if (u->peer.connection->ssl) {
|
260
|
2416
|
|
2417 /*
|
|
2418 * We send the "close notify" shutdown alert to the upstream only
|
|
2419 * and do not wait its "close notify" shutdown alert.
|
|
2420 * It is acceptable according to the TLS standard.
|
|
2421 */
|
|
2422
|
|
2423 u->peer.connection->ssl->no_wait_shutdown = 1;
|
|
2424
|
|
2425 (void) ngx_ssl_shutdown(u->peer.connection);
|
126
|
2426 }
|
|
2427 #endif
|
260
|
2428
|
|
2429 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
2430 "close http upstream connection: %d",
|
|
2431 u->peer.connection->fd);
|
|
2432
|
28
|
2433 ngx_close_connection(u->peer.connection);
|
|
2434 }
|
|
2435
|
32
|
2436 u->peer.connection = NULL;
|
|
2437
|
112
|
2438 if (u->header_sent && (rc == NGX_ERROR || rc >= NGX_HTTP_SPECIAL_RESPONSE))
|
28
|
2439 {
|
|
2440 rc = 0;
|
|
2441 }
|
|
2442
|
130
|
2443 if (u->pipe && u->pipe->temp_file) {
|
28
|
2444 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
2445 "http upstream temp fd: %d",
|
130
|
2446 u->pipe->temp_file->file.fd);
|
28
|
2447 }
|
|
2448
|
|
2449 #if 0
|
|
2450 if (u->cache) {
|
|
2451 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
32
|
2452 "http upstream cache fd: %d",
|
28
|
2453 u->cache->ctx.file.fd);
|
|
2454 }
|
|
2455 #endif
|
|
2456
|
64
|
2457 if (rc == NGX_DECLINED) {
|
|
2458 return;
|
|
2459 }
|
|
2460
|
32
|
2461 r->connection->log->action = "sending to client";
|
|
2462
|
314
|
2463 if (rc == 0) {
|
|
2464 if (r == r->main) {
|
|
2465 if (!r->post_action) {
|
|
2466 rc = ngx_http_send_special(r, NGX_HTTP_LAST);
|
|
2467 }
|
|
2468
|
|
2469 } else {
|
|
2470 if (r->out) {
|
|
2471 rc = NGX_AGAIN;
|
|
2472 }
|
|
2473 }
|
28
|
2474 }
|
|
2475
|
|
2476 ngx_http_finalize_request(r, rc);
|
|
2477 }
|
|
2478
|
|
2479
|
58
|
2480 static ngx_int_t
|
|
2481 ngx_http_upstream_process_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
2482 ngx_uint_t offset)
|
126
|
2483 {
|
58
|
2484 ngx_table_elt_t **ph;
|
126
|
2485
|
58
|
2486 ph = (ngx_table_elt_t **) ((char *) &r->upstream->headers_in + offset);
|
|
2487
|
|
2488 if (*ph == NULL) {
|
|
2489 *ph = h;
|
|
2490 }
|
|
2491
|
|
2492 return NGX_OK;
|
|
2493 }
|
|
2494
|
|
2495
|
|
2496 static ngx_int_t
|
|
2497 ngx_http_upstream_process_multi_header_lines(ngx_http_request_t *r,
|
|
2498 ngx_table_elt_t *h, ngx_uint_t offset)
|
|
2499 {
|
|
2500 ngx_array_t *pa;
|
|
2501 ngx_table_elt_t **ph;
|
|
2502
|
|
2503 pa = (ngx_array_t *) ((char *) &r->upstream->headers_in + offset);
|
|
2504
|
|
2505 if (pa->elts == NULL) {
|
|
2506 if (ngx_array_init(pa, r->pool, 2, sizeof(ngx_table_elt_t *)) != NGX_OK)
|
|
2507 {
|
|
2508 return NGX_ERROR;
|
|
2509 }
|
|
2510 }
|
|
2511
|
|
2512 ph = ngx_array_push(pa);
|
|
2513 if (ph == NULL) {
|
|
2514 return NGX_ERROR;
|
|
2515 }
|
|
2516
|
|
2517 *ph = h;
|
|
2518
|
|
2519 return NGX_OK;
|
|
2520 }
|
|
2521
|
|
2522
|
|
2523 static ngx_int_t
|
|
2524 ngx_http_upstream_ignore_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
2525 ngx_uint_t offset)
|
|
2526 {
|
|
2527 return NGX_OK;
|
|
2528 }
|
|
2529
|
|
2530
|
|
2531 static ngx_int_t
|
76
|
2532 ngx_http_upstream_process_limit_rate(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
2533 ngx_uint_t offset)
|
126
|
2534 {
|
76
|
2535 ngx_int_t n;
|
|
2536
|
|
2537 r->upstream->headers_in.x_accel_limit_rate = h;
|
|
2538
|
|
2539 n = ngx_atoi(h->value.data, h->value.len);
|
|
2540
|
|
2541 if (n != NGX_ERROR) {
|
|
2542 r->limit_rate = (size_t) n;
|
|
2543 }
|
|
2544
|
|
2545 return NGX_OK;
|
|
2546 }
|
|
2547
|
|
2548
|
|
2549 static ngx_int_t
|
198
|
2550 ngx_http_upstream_process_buffering(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
2551 ngx_uint_t offset)
|
|
2552 {
|
|
2553 u_char c0, c1, c2;
|
|
2554
|
|
2555 if (r->upstream->conf->change_buffering) {
|
|
2556
|
|
2557 if (h->value.len == 2) {
|
|
2558 c0 = ngx_tolower(h->value.data[0]);
|
|
2559 c1 = ngx_tolower(h->value.data[1]);
|
|
2560
|
|
2561 if (c0 == 'n' && c1 == 'o') {
|
|
2562 r->upstream->buffering = 0;
|
|
2563 }
|
|
2564
|
|
2565 } else if (h->value.len == 3) {
|
|
2566 c0 = ngx_tolower(h->value.data[0]);
|
|
2567 c1 = ngx_tolower(h->value.data[1]);
|
|
2568 c2 = ngx_tolower(h->value.data[2]);
|
|
2569
|
|
2570 if (c0 == 'y' && c1 == 'e' && c2 == 's') {
|
|
2571 r->upstream->buffering = 1;
|
|
2572 }
|
|
2573 }
|
|
2574 }
|
|
2575
|
|
2576 return NGX_OK;
|
|
2577 }
|
|
2578
|
|
2579
|
|
2580 static ngx_int_t
|
206
|
2581 ngx_http_upstream_process_charset(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
2582 ngx_uint_t offset)
|
|
2583 {
|
|
2584 r->headers_out.override_charset = &h->value;
|
|
2585
|
|
2586 return NGX_OK;
|
|
2587 }
|
|
2588
|
|
2589
|
|
2590 static ngx_int_t
|
58
|
2591 ngx_http_upstream_copy_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
2592 ngx_uint_t offset)
|
|
2593 {
|
122
|
2594 ngx_table_elt_t *ho, **ph;
|
58
|
2595
|
|
2596 ho = ngx_list_push(&r->headers_out.headers);
|
|
2597 if (ho == NULL) {
|
|
2598 return NGX_ERROR;
|
|
2599 }
|
|
2600
|
|
2601 *ho = *h;
|
|
2602
|
122
|
2603 if (offset) {
|
|
2604 ph = (ngx_table_elt_t **) ((char *) &r->headers_out + offset);
|
|
2605 *ph = ho;
|
|
2606 }
|
|
2607
|
58
|
2608 return NGX_OK;
|
|
2609 }
|
|
2610
|
|
2611
|
|
2612 static ngx_int_t
|
|
2613 ngx_http_upstream_copy_multi_header_lines(ngx_http_request_t *r,
|
|
2614 ngx_table_elt_t *h, ngx_uint_t offset)
|
|
2615 {
|
|
2616 ngx_array_t *pa;
|
|
2617 ngx_table_elt_t *ho, **ph;
|
|
2618
|
|
2619 pa = (ngx_array_t *) ((char *) &r->headers_out + offset);
|
|
2620
|
|
2621 if (pa->elts == NULL) {
|
|
2622 if (ngx_array_init(pa, r->pool, 2, sizeof(ngx_table_elt_t *)) != NGX_OK)
|
|
2623 {
|
|
2624 return NGX_ERROR;
|
|
2625 }
|
|
2626 }
|
|
2627
|
|
2628 ph = ngx_array_push(pa);
|
|
2629 if (ph == NULL) {
|
|
2630 return NGX_ERROR;
|
|
2631 }
|
|
2632
|
|
2633 ho = ngx_list_push(&r->headers_out.headers);
|
|
2634 if (ho == NULL) {
|
|
2635 return NGX_ERROR;
|
|
2636 }
|
|
2637
|
|
2638 *ho = *h;
|
|
2639 *ph = ho;
|
|
2640
|
|
2641 return NGX_OK;
|
|
2642 }
|
|
2643
|
|
2644
|
|
2645 static ngx_int_t
|
|
2646 ngx_http_upstream_copy_content_type(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
2647 ngx_uint_t offset)
|
|
2648 {
|
206
|
2649 u_char *p, *last;
|
|
2650
|
|
2651 r->headers_out.content_type_len = h->value.len;
|
58
|
2652 r->headers_out.content_type = h->value;
|
|
2653
|
206
|
2654 for (p = h->value.data; *p; p++) {
|
|
2655
|
|
2656 if (*p != ';') {
|
|
2657 continue;
|
|
2658 }
|
|
2659
|
|
2660 last = p;
|
|
2661
|
|
2662 while (*++p == ' ') { /* void */ }
|
|
2663
|
286
|
2664 if (ngx_strncasecmp(p, (u_char *) "charset=", 8) != 0) {
|
206
|
2665 continue;
|
|
2666 }
|
|
2667
|
|
2668 p += 8;
|
|
2669
|
|
2670 r->headers_out.content_type_len = last - h->value.data;
|
|
2671
|
|
2672 r->headers_out.charset.len = h->value.data + h->value.len - p;
|
|
2673 r->headers_out.charset.data = p;
|
292
|
2674
|
|
2675 return NGX_OK;
|
206
|
2676 }
|
|
2677
|
58
|
2678 return NGX_OK;
|
|
2679 }
|
|
2680
|
|
2681
|
|
2682 static ngx_int_t
|
|
2683 ngx_http_upstream_copy_content_length(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
2684 ngx_uint_t offset)
|
|
2685 {
|
|
2686 ngx_table_elt_t *ho;
|
|
2687
|
|
2688 ho = ngx_list_push(&r->headers_out.headers);
|
|
2689 if (ho == NULL) {
|
|
2690 return NGX_ERROR;
|
|
2691 }
|
|
2692
|
|
2693 *ho = *h;
|
|
2694
|
|
2695 r->headers_out.content_length = ho;
|
|
2696 r->headers_out.content_length_n = ngx_atoof(h->value.data, h->value.len);
|
|
2697
|
|
2698 return NGX_OK;
|
|
2699 }
|
|
2700
|
|
2701
|
|
2702 static ngx_int_t
|
|
2703 ngx_http_upstream_rewrite_location(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
2704 ngx_uint_t offset)
|
|
2705 {
|
|
2706 ngx_int_t rc;
|
|
2707 ngx_table_elt_t *ho;
|
|
2708
|
|
2709 ho = ngx_list_push(&r->headers_out.headers);
|
|
2710 if (ho == NULL) {
|
|
2711 return NGX_ERROR;
|
|
2712 }
|
|
2713
|
|
2714 *ho = *h;
|
|
2715
|
|
2716 if (r->upstream->rewrite_redirect) {
|
|
2717 rc = r->upstream->rewrite_redirect(r, ho, 0);
|
|
2718
|
78
|
2719 if (rc == NGX_DECLINED) {
|
|
2720 return NGX_OK;
|
|
2721 }
|
|
2722
|
58
|
2723 if (rc == NGX_OK) {
|
|
2724 r->headers_out.location = ho;
|
|
2725
|
|
2726 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
2727 "rewritten location: \"%V\"", &ho->value);
|
|
2728 }
|
|
2729
|
|
2730 return rc;
|
|
2731 }
|
|
2732
|
348
|
2733 if (ho->value.data[0] != '/') {
|
|
2734 r->headers_out.location = ho;
|
|
2735 }
|
|
2736
|
58
|
2737 /*
|
|
2738 * we do not set r->headers_out.location here to avoid the handling
|
|
2739 * the local redirects without a host name by ngx_http_header_filter()
|
|
2740 */
|
|
2741
|
|
2742 return NGX_OK;
|
|
2743 }
|
|
2744
|
|
2745
|
|
2746 static ngx_int_t
|
|
2747 ngx_http_upstream_rewrite_refresh(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
2748 ngx_uint_t offset)
|
|
2749 {
|
|
2750 u_char *p;
|
|
2751 ngx_int_t rc;
|
|
2752 ngx_table_elt_t *ho;
|
|
2753
|
|
2754 ho = ngx_list_push(&r->headers_out.headers);
|
|
2755 if (ho == NULL) {
|
|
2756 return NGX_ERROR;
|
|
2757 }
|
|
2758
|
|
2759 *ho = *h;
|
|
2760
|
|
2761 if (r->upstream->rewrite_redirect) {
|
|
2762
|
340
|
2763 p = ngx_strcasestrn(ho->value.data, "url=", 4 - 1);
|
58
|
2764
|
|
2765 if (p) {
|
|
2766 rc = r->upstream->rewrite_redirect(r, ho, p + 4 - ho->value.data);
|
|
2767
|
|
2768 } else {
|
|
2769 return NGX_OK;
|
|
2770 }
|
|
2771
|
78
|
2772 if (rc == NGX_DECLINED) {
|
|
2773 return NGX_OK;
|
|
2774 }
|
|
2775
|
58
|
2776 if (rc == NGX_OK) {
|
348
|
2777 r->headers_out.refresh = ho;
|
|
2778
|
58
|
2779 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
2780 "rewritten refresh: \"%V\"", &ho->value);
|
|
2781 }
|
|
2782
|
|
2783 return rc;
|
|
2784 }
|
|
2785
|
348
|
2786 r->headers_out.refresh = ho;
|
|
2787
|
58
|
2788 return NGX_OK;
|
|
2789 }
|
|
2790
|
|
2791
|
|
2792 #if (NGX_HTTP_GZIP)
|
|
2793
|
|
2794 static ngx_int_t
|
|
2795 ngx_http_upstream_copy_content_encoding(ngx_http_request_t *r,
|
|
2796 ngx_table_elt_t *h, ngx_uint_t offset)
|
|
2797 {
|
|
2798 ngx_table_elt_t *ho;
|
|
2799
|
|
2800 ho = ngx_list_push(&r->headers_out.headers);
|
|
2801 if (ho == NULL) {
|
|
2802 return NGX_ERROR;
|
|
2803 }
|
|
2804
|
|
2805 *ho = *h;
|
|
2806
|
|
2807 r->headers_out.content_encoding = ho;
|
|
2808
|
|
2809 return NGX_OK;
|
|
2810 }
|
|
2811
|
|
2812 #endif
|
|
2813
|
|
2814
|
36
|
2815 static ngx_int_t
|
122
|
2816 ngx_http_upstream_add_variables(ngx_conf_t *cf)
|
28
|
2817 {
|
260
|
2818 ngx_http_variable_t *var, *v;
|
28
|
2819
|
122
|
2820 for (v = ngx_http_upstream_vars; v->name.len; v++) {
|
|
2821 var = ngx_http_add_variable(cf, &v->name, v->flags);
|
|
2822 if (var == NULL) {
|
|
2823 return NGX_ERROR;
|
|
2824 }
|
|
2825
|
186
|
2826 var->get_handler = v->get_handler;
|
122
|
2827 var->data = v->data;
|
|
2828 }
|
|
2829
|
28
|
2830 return NGX_OK;
|
|
2831 }
|
58
|
2832
|
|
2833
|
122
|
2834 static ngx_int_t
|
298
|
2835 ngx_http_upstream_addr_variable(ngx_http_request_t *r,
|
|
2836 ngx_http_variable_value_t *v, uintptr_t data)
|
|
2837 {
|
|
2838 u_char *p;
|
|
2839 size_t len;
|
|
2840 ngx_uint_t i;
|
|
2841 ngx_http_upstream_state_t *state;
|
|
2842
|
|
2843 v->valid = 1;
|
340
|
2844 v->no_cacheable = 0;
|
298
|
2845 v->not_found = 0;
|
|
2846
|
|
2847 if (r->upstream_states == NULL || r->upstream_states->nelts == 0) {
|
|
2848 v->not_found = 1;
|
|
2849 return NGX_OK;
|
|
2850 }
|
|
2851
|
|
2852 len = 0;
|
|
2853 state = r->upstream_states->elts;
|
|
2854
|
|
2855 for (i = 0; i < r->upstream_states->nelts; i++) {
|
|
2856 if (state[i].peer) {
|
|
2857 len += state[i].peer->len + 2;
|
|
2858
|
|
2859 } else {
|
|
2860 len += 3;
|
|
2861 }
|
|
2862 }
|
|
2863
|
|
2864 p = ngx_palloc(r->pool, len);
|
|
2865 if (p == NULL) {
|
|
2866 return NGX_ERROR;
|
|
2867 }
|
|
2868
|
|
2869 v->data = p;
|
|
2870
|
|
2871 i = 0;
|
|
2872
|
|
2873 for ( ;; ) {
|
|
2874 if (state[i].peer) {
|
|
2875 p = ngx_cpymem(p, state[i].peer->data, state[i].peer->len);
|
|
2876 }
|
|
2877
|
|
2878 if (++i == r->upstream_states->nelts) {
|
|
2879 break;
|
|
2880 }
|
|
2881
|
|
2882 if (state[i].peer) {
|
|
2883 *p++ = ',';
|
|
2884 *p++ = ' ';
|
|
2885
|
|
2886 } else {
|
|
2887 *p++ = ' ';
|
|
2888 *p++ = ':';
|
|
2889 *p++ = ' ';
|
|
2890
|
|
2891 if (++i == r->upstream_states->nelts) {
|
|
2892 break;
|
|
2893 }
|
|
2894
|
|
2895 continue;
|
|
2896 }
|
|
2897 }
|
|
2898
|
|
2899 v->len = p - v->data;
|
|
2900
|
|
2901 return NGX_OK;
|
|
2902 }
|
|
2903
|
|
2904
|
|
2905 static ngx_int_t
|
122
|
2906 ngx_http_upstream_status_variable(ngx_http_request_t *r,
|
|
2907 ngx_http_variable_value_t *v, uintptr_t data)
|
|
2908 {
|
|
2909 u_char *p;
|
|
2910 size_t len;
|
|
2911 ngx_uint_t i;
|
|
2912 ngx_http_upstream_state_t *state;
|
|
2913
|
|
2914 v->valid = 1;
|
340
|
2915 v->no_cacheable = 0;
|
122
|
2916 v->not_found = 0;
|
|
2917
|
296
|
2918 if (r->upstream_states == NULL || r->upstream_states->nelts == 0) {
|
122
|
2919 v->not_found = 1;
|
|
2920 return NGX_OK;
|
|
2921 }
|
|
2922
|
296
|
2923 len = r->upstream_states->nelts * (3 + 2);
|
122
|
2924
|
|
2925 p = ngx_palloc(r->pool, len);
|
|
2926 if (p == NULL) {
|
|
2927 return NGX_ERROR;
|
|
2928 }
|
|
2929
|
|
2930 v->data = p;
|
|
2931
|
|
2932 i = 0;
|
296
|
2933 state = r->upstream_states->elts;
|
122
|
2934
|
|
2935 for ( ;; ) {
|
296
|
2936 if (state[i].status) {
|
|
2937 p = ngx_sprintf(p, "%ui", state[i].status);
|
122
|
2938
|
|
2939 } else {
|
296
|
2940 *p++ = '-';
|
122
|
2941 }
|
|
2942
|
296
|
2943 if (++i == r->upstream_states->nelts) {
|
122
|
2944 break;
|
|
2945 }
|
|
2946
|
296
|
2947 if (state[i].peer) {
|
|
2948 *p++ = ',';
|
|
2949 *p++ = ' ';
|
|
2950
|
|
2951 } else {
|
|
2952 *p++ = ' ';
|
|
2953 *p++ = ':';
|
|
2954 *p++ = ' ';
|
|
2955
|
|
2956 if (++i == r->upstream_states->nelts) {
|
|
2957 break;
|
|
2958 }
|
|
2959
|
|
2960 continue;
|
|
2961 }
|
122
|
2962 }
|
|
2963
|
|
2964 v->len = p - v->data;
|
|
2965
|
|
2966 return NGX_OK;
|
|
2967 }
|
|
2968
|
|
2969
|
|
2970 static ngx_int_t
|
|
2971 ngx_http_upstream_response_time_variable(ngx_http_request_t *r,
|
|
2972 ngx_http_variable_value_t *v, uintptr_t data)
|
|
2973 {
|
|
2974 u_char *p;
|
|
2975 size_t len;
|
|
2976 ngx_uint_t i;
|
262
|
2977 ngx_msec_int_t ms;
|
122
|
2978 ngx_http_upstream_state_t *state;
|
|
2979
|
|
2980 v->valid = 1;
|
340
|
2981 v->no_cacheable = 0;
|
122
|
2982 v->not_found = 0;
|
|
2983
|
296
|
2984 if (r->upstream_states == NULL || r->upstream_states->nelts == 0) {
|
122
|
2985 v->not_found = 1;
|
|
2986 return NGX_OK;
|
|
2987 }
|
|
2988
|
296
|
2989 len = r->upstream_states->nelts * (NGX_TIME_T_LEN + 4 + 2);
|
122
|
2990
|
|
2991 p = ngx_palloc(r->pool, len);
|
|
2992 if (p == NULL) {
|
|
2993 return NGX_ERROR;
|
|
2994 }
|
|
2995
|
|
2996 v->data = p;
|
|
2997
|
|
2998 i = 0;
|
296
|
2999 state = r->upstream_states->elts;
|
122
|
3000
|
|
3001 for ( ;; ) {
|
296
|
3002 if (state[i].status) {
|
346
|
3003 ms = (ngx_msec_int_t)
|
|
3004 (state[i].response_sec * 1000 + state[i].response_msec);
|
262
|
3005 ms = (ms >= 0) ? ms : 0;
|
|
3006 p = ngx_sprintf(p, "%d.%03d", ms / 1000, ms % 1000);
|
296
|
3007
|
|
3008 } else {
|
|
3009 *p++ = '-';
|
122
|
3010 }
|
|
3011
|
296
|
3012 if (++i == r->upstream_states->nelts) {
|
122
|
3013 break;
|
|
3014 }
|
|
3015
|
296
|
3016 if (state[i].peer) {
|
|
3017 *p++ = ',';
|
|
3018 *p++ = ' ';
|
|
3019
|
|
3020 } else {
|
|
3021 *p++ = ' ';
|
|
3022 *p++ = ':';
|
|
3023 *p++ = ' ';
|
|
3024
|
|
3025 if (++i == r->upstream_states->nelts) {
|
|
3026 break;
|
|
3027 }
|
|
3028
|
|
3029 continue;
|
|
3030 }
|
122
|
3031 }
|
|
3032
|
|
3033 v->len = p - v->data;
|
|
3034
|
|
3035 return NGX_OK;
|
|
3036 }
|
|
3037
|
|
3038
|
296
|
3039 ngx_int_t
|
|
3040 ngx_http_upstream_header_variable(ngx_http_request_t *r,
|
|
3041 ngx_http_variable_value_t *v, uintptr_t data)
|
|
3042 {
|
|
3043 if (r->upstream == NULL) {
|
|
3044 v->not_found = 1;
|
|
3045 return NGX_OK;
|
|
3046 }
|
|
3047
|
|
3048 return ngx_http_variable_unknown_header(v, (ngx_str_t *) data,
|
|
3049 &r->upstream->headers_in.headers.part,
|
|
3050 sizeof("upstream_http_") - 1);
|
|
3051 }
|
|
3052
|
|
3053
|
200
|
3054 static char *
|
|
3055 ngx_http_upstream(ngx_conf_t *cf, ngx_command_t *cmd, void *dummy)
|
|
3056 {
|
260
|
3057 char *rv;
|
|
3058 void *mconf;
|
|
3059 ngx_str_t *value;
|
|
3060 ngx_url_t u;
|
|
3061 ngx_uint_t m;
|
|
3062 ngx_conf_t pcf;
|
|
3063 ngx_http_module_t *module;
|
|
3064 ngx_http_conf_ctx_t *ctx, *http_ctx;
|
|
3065 ngx_http_upstream_srv_conf_t *uscf;
|
|
3066
|
|
3067 ngx_memzero(&u, sizeof(ngx_url_t));
|
|
3068
|
|
3069 value = cf->args->elts;
|
|
3070 u.host = value[1];
|
|
3071 u.no_resolve = 1;
|
|
3072
|
|
3073 uscf = ngx_http_upstream_add(cf, &u, NGX_HTTP_UPSTREAM_CREATE
|
|
3074 |NGX_HTTP_UPSTREAM_WEIGHT
|
|
3075 |NGX_HTTP_UPSTREAM_MAX_FAILS
|
|
3076 |NGX_HTTP_UPSTREAM_FAIL_TIMEOUT
|
|
3077 |NGX_HTTP_UPSTREAM_DOWN
|
|
3078 |NGX_HTTP_UPSTREAM_BACKUP);
|
|
3079 if (uscf == NULL) {
|
|
3080 return NGX_CONF_ERROR;
|
|
3081 }
|
|
3082
|
200
|
3083
|
|
3084 ctx = ngx_pcalloc(cf->pool, sizeof(ngx_http_conf_ctx_t));
|
|
3085 if (ctx == NULL) {
|
|
3086 return NGX_CONF_ERROR;
|
|
3087 }
|
|
3088
|
260
|
3089 http_ctx = cf->ctx;
|
|
3090 ctx->main_conf = http_ctx->main_conf;
|
200
|
3091
|
|
3092 /* the upstream{}'s srv_conf */
|
|
3093
|
|
3094 ctx->srv_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module);
|
|
3095 if (ctx->srv_conf == NULL) {
|
|
3096 return NGX_CONF_ERROR;
|
|
3097 }
|
|
3098
|
|
3099 ctx->srv_conf[ngx_http_upstream_module.ctx_index] = uscf;
|
|
3100
|
260
|
3101 uscf->srv_conf = ctx->srv_conf;
|
|
3102
|
200
|
3103
|
|
3104 /* the upstream{}'s loc_conf */
|
|
3105
|
|
3106 ctx->loc_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module);
|
|
3107 if (ctx->loc_conf == NULL) {
|
|
3108 return NGX_CONF_ERROR;
|
|
3109 }
|
|
3110
|
|
3111 for (m = 0; ngx_modules[m]; m++) {
|
|
3112 if (ngx_modules[m]->type != NGX_HTTP_MODULE) {
|
|
3113 continue;
|
|
3114 }
|
|
3115
|
|
3116 module = ngx_modules[m]->ctx;
|
|
3117
|
260
|
3118 if (module->create_srv_conf) {
|
|
3119 mconf = module->create_srv_conf(cf);
|
|
3120 if (mconf == NULL) {
|
|
3121 return NGX_CONF_ERROR;
|
|
3122 }
|
|
3123
|
|
3124 ctx->srv_conf[ngx_modules[m]->ctx_index] = mconf;
|
|
3125 }
|
|
3126
|
200
|
3127 if (module->create_loc_conf) {
|
|
3128 mconf = module->create_loc_conf(cf);
|
|
3129 if (mconf == NULL) {
|
|
3130 return NGX_CONF_ERROR;
|
|
3131 }
|
|
3132
|
|
3133 ctx->loc_conf[ngx_modules[m]->ctx_index] = mconf;
|
|
3134 }
|
|
3135 }
|
|
3136
|
|
3137
|
|
3138 /* parse inside upstream{} */
|
|
3139
|
|
3140 pcf = *cf;
|
|
3141 cf->ctx = ctx;
|
|
3142 cf->cmd_type = NGX_HTTP_UPS_CONF;
|
|
3143
|
|
3144 rv = ngx_conf_parse(cf, NULL);
|
|
3145
|
|
3146 *cf = pcf;
|
|
3147
|
|
3148 if (rv != NGX_CONF_OK) {
|
|
3149 return rv;
|
|
3150 }
|
|
3151
|
|
3152 if (uscf->servers == NULL) {
|
|
3153 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
3154 "no servers are inside upstream");
|
|
3155 return NGX_CONF_ERROR;
|
|
3156 }
|
|
3157
|
|
3158 return rv;
|
|
3159 }
|
|
3160
|
|
3161
|
|
3162 static char *
|
|
3163 ngx_http_upstream_server(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
3164 {
|
|
3165 ngx_http_upstream_srv_conf_t *uscf = conf;
|
|
3166
|
260
|
3167 time_t fail_timeout;
|
|
3168 ngx_str_t *value, s;
|
|
3169 ngx_url_t u;
|
|
3170 ngx_int_t weight, max_fails;
|
|
3171 ngx_uint_t i;
|
|
3172 ngx_http_upstream_server_t *us;
|
200
|
3173
|
|
3174 if (uscf->servers == NULL) {
|
260
|
3175 uscf->servers = ngx_array_create(cf->pool, 4,
|
|
3176 sizeof(ngx_http_upstream_server_t));
|
200
|
3177 if (uscf->servers == NULL) {
|
|
3178 return NGX_CONF_ERROR;
|
|
3179 }
|
|
3180 }
|
|
3181
|
260
|
3182 us = ngx_array_push(uscf->servers);
|
|
3183 if (us == NULL) {
|
200
|
3184 return NGX_CONF_ERROR;
|
|
3185 }
|
|
3186
|
260
|
3187 ngx_memzero(us, sizeof(ngx_http_upstream_server_t));
|
|
3188
|
200
|
3189 value = cf->args->elts;
|
|
3190
|
|
3191 ngx_memzero(&u, sizeof(ngx_url_t));
|
|
3192
|
|
3193 u.url = value[1];
|
266
|
3194 u.default_port = 80;
|
200
|
3195
|
340
|
3196 if (ngx_parse_url(cf->pool, &u) != NGX_OK) {
|
200
|
3197 if (u.err) {
|
|
3198 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
3199 "%s in upstream \"%V\"", u.err, &u.url);
|
|
3200 }
|
|
3201
|
|
3202 return NGX_CONF_ERROR;
|
|
3203 }
|
|
3204
|
212
|
3205 weight = 1;
|
260
|
3206 max_fails = 1;
|
|
3207 fail_timeout = 10;
|
|
3208
|
|
3209 for (i = 2; i < cf->args->nelts; i++) {
|
|
3210
|
|
3211 if (ngx_strncmp(value[i].data, "weight=", 7) == 0) {
|
|
3212
|
|
3213 if (!(uscf->flags & NGX_HTTP_UPSTREAM_WEIGHT)) {
|
|
3214 goto invalid;
|
|
3215 }
|
|
3216
|
|
3217 weight = ngx_atoi(&value[i].data[7], value[i].len - 7);
|
212
|
3218
|
|
3219 if (weight == NGX_ERROR || weight == 0) {
|
|
3220 goto invalid;
|
|
3221 }
|
|
3222
|
260
|
3223 continue;
|
|
3224 }
|
|
3225
|
|
3226 if (ngx_strncmp(value[i].data, "max_fails=", 10) == 0) {
|
|
3227
|
|
3228 if (!(uscf->flags & NGX_HTTP_UPSTREAM_MAX_FAILS)) {
|
|
3229 goto invalid;
|
|
3230 }
|
|
3231
|
|
3232 max_fails = ngx_atoi(&value[i].data[10], value[i].len - 10);
|
|
3233
|
|
3234 if (max_fails == NGX_ERROR) {
|
|
3235 goto invalid;
|
|
3236 }
|
|
3237
|
|
3238 continue;
|
212
|
3239 }
|
260
|
3240
|
|
3241 if (ngx_strncmp(value[i].data, "fail_timeout=", 13) == 0) {
|
|
3242
|
|
3243 if (!(uscf->flags & NGX_HTTP_UPSTREAM_FAIL_TIMEOUT)) {
|
|
3244 goto invalid;
|
|
3245 }
|
|
3246
|
|
3247 s.len = value[i].len - 13;
|
|
3248 s.data = &value[i].data[13];
|
|
3249
|
|
3250 fail_timeout = ngx_parse_time(&s, 1);
|
|
3251
|
|
3252 if (fail_timeout < 0) {
|
|
3253 goto invalid;
|
|
3254 }
|
|
3255
|
|
3256 continue;
|
|
3257 }
|
|
3258
|
326
|
3259 if (ngx_strncmp(value[i].data, "backup", 6) == 0) {
|
|
3260
|
|
3261 if (!(uscf->flags & NGX_HTTP_UPSTREAM_BACKUP)) {
|
|
3262 goto invalid;
|
|
3263 }
|
|
3264
|
|
3265 us->backup = 1;
|
|
3266
|
|
3267 continue;
|
|
3268 }
|
|
3269
|
260
|
3270 if (ngx_strncmp(value[i].data, "down", 4) == 0) {
|
|
3271
|
|
3272 if (!(uscf->flags & NGX_HTTP_UPSTREAM_DOWN)) {
|
|
3273 goto invalid;
|
|
3274 }
|
|
3275
|
|
3276 us->down = 1;
|
|
3277
|
|
3278 continue;
|
|
3279 }
|
|
3280
|
|
3281 goto invalid;
|
212
|
3282 }
|
|
3283
|
260
|
3284 us->addrs = u.addrs;
|
|
3285 us->naddrs = u.naddrs;
|
|
3286 us->weight = weight;
|
|
3287 us->max_fails = max_fails;
|
|
3288 us->fail_timeout = fail_timeout;
|
200
|
3289
|
|
3290 return NGX_CONF_OK;
|
212
|
3291
|
|
3292 invalid:
|
|
3293
|
260
|
3294 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
3295 "invalid parameter \"%V\"", &value[i]);
|
212
|
3296
|
|
3297 return NGX_CONF_ERROR;
|
200
|
3298 }
|
|
3299
|
|
3300
|
|
3301 ngx_http_upstream_srv_conf_t *
|
260
|
3302 ngx_http_upstream_add(ngx_conf_t *cf, ngx_url_t *u, ngx_uint_t flags)
|
200
|
3303 {
|
|
3304 ngx_uint_t i;
|
260
|
3305 ngx_http_upstream_server_t *us;
|
200
|
3306 ngx_http_upstream_srv_conf_t *uscf, **uscfp;
|
|
3307 ngx_http_upstream_main_conf_t *umcf;
|
|
3308
|
260
|
3309 if (!(flags & NGX_HTTP_UPSTREAM_CREATE)) {
|
|
3310
|
340
|
3311 if (ngx_parse_url(cf->pool, u) != NGX_OK) {
|
200
|
3312 if (u->err) {
|
|
3313 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
3314 "%s in upstream \"%V\"", u->err, &u->url);
|
|
3315 }
|
|
3316
|
|
3317 return NULL;
|
|
3318 }
|
|
3319 }
|
|
3320
|
|
3321 umcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_upstream_module);
|
|
3322
|
|
3323 uscfp = umcf->upstreams.elts;
|
|
3324
|
|
3325 for (i = 0; i < umcf->upstreams.nelts; i++) {
|
266
|
3326
|
|
3327 if (uscfp[i]->host.len != u->host.len
|
260
|
3328 || ngx_strncasecmp(uscfp[i]->host.data, u->host.data, u->host.len)
|
|
3329 != 0)
|
|
3330 {
|
200
|
3331 continue;
|
|
3332 }
|
|
3333
|
260
|
3334 if ((flags & NGX_HTTP_UPSTREAM_CREATE)
|
|
3335 && (uscfp[i]->flags & NGX_HTTP_UPSTREAM_CREATE))
|
200
|
3336 {
|
260
|
3337 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
3338 "duplicate upstream \"%V\"", &u->host);
|
|
3339 return NULL;
|
200
|
3340 }
|
260
|
3341
|
266
|
3342 if ((uscfp[i]->flags & NGX_HTTP_UPSTREAM_CREATE) && u->port) {
|
260
|
3343 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
|
266
|
3344 "upstream \"%V\" may not have port %d",
|
|
3345 &u->host, u->port);
|
|
3346 return NULL;
|
|
3347 }
|
|
3348
|
|
3349 if ((flags & NGX_HTTP_UPSTREAM_CREATE) && uscfp[i]->port) {
|
|
3350 ngx_log_error(NGX_LOG_WARN, cf->log, 0,
|
|
3351 "upstream \"%V\" may not have port %d in %s:%ui",
|
|
3352 &u->host, uscfp[i]->port,
|
336
|
3353 uscfp[i]->file_name, uscfp[i]->line);
|
266
|
3354 return NULL;
|
|
3355 }
|
|
3356
|
|
3357 if (uscfp[i]->port != u->port) {
|
|
3358 continue;
|
260
|
3359 }
|
|
3360
|
324
|
3361 if (uscfp[i]->default_port && u->default_port
|
|
3362 && uscfp[i]->default_port != u->default_port)
|
|
3363 {
|
|
3364 continue;
|
|
3365 }
|
|
3366
|
260
|
3367 return uscfp[i];
|
200
|
3368 }
|
|
3369
|
|
3370 uscf = ngx_pcalloc(cf->pool, sizeof(ngx_http_upstream_srv_conf_t));
|
|
3371 if (uscf == NULL) {
|
|
3372 return NULL;
|
|
3373 }
|
|
3374
|
260
|
3375 uscf->flags = flags;
|
200
|
3376 uscf->host = u->host;
|
336
|
3377 uscf->file_name = cf->conf_file->file.name.data;
|
200
|
3378 uscf->line = cf->conf_file->line;
|
266
|
3379 uscf->port = u->port;
|
|
3380 uscf->default_port = u->default_port;
|
260
|
3381
|
|
3382 if (u->naddrs == 1) {
|
|
3383 uscf->servers = ngx_array_create(cf->pool, 1,
|
|
3384 sizeof(ngx_http_upstream_server_t));
|
|
3385 if (uscf->servers == NULL) {
|
|
3386 return NGX_CONF_ERROR;
|
|
3387 }
|
|
3388
|
|
3389 us = ngx_array_push(uscf->servers);
|
|
3390 if (us == NULL) {
|
|
3391 return NGX_CONF_ERROR;
|
|
3392 }
|
|
3393
|
|
3394 ngx_memzero(us, sizeof(ngx_http_upstream_server_t));
|
|
3395
|
|
3396 us->addrs = u->addrs;
|
|
3397 us->naddrs = u->naddrs;
|
|
3398 }
|
200
|
3399
|
|
3400 uscfp = ngx_array_push(&umcf->upstreams);
|
|
3401 if (uscfp == NULL) {
|
|
3402 return NULL;
|
|
3403 }
|
|
3404
|
|
3405 *uscfp = uscf;
|
|
3406
|
|
3407 return uscf;
|
|
3408 }
|
|
3409
|
|
3410
|
58
|
3411 static void *
|
|
3412 ngx_http_upstream_create_main_conf(ngx_conf_t *cf)
|
|
3413 {
|
|
3414 ngx_http_upstream_main_conf_t *umcf;
|
|
3415
|
|
3416 umcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_upstream_main_conf_t));
|
|
3417 if (umcf == NULL) {
|
|
3418 return NULL;
|
|
3419 }
|
|
3420
|
200
|
3421 if (ngx_array_init(&umcf->upstreams, cf->pool, 4,
|
|
3422 sizeof(ngx_http_upstream_srv_conf_t *))
|
|
3423 != NGX_OK)
|
|
3424 {
|
|
3425 return NGX_CONF_ERROR;
|
|
3426 }
|
|
3427
|
58
|
3428 return umcf;
|
|
3429 }
|
|
3430
|
|
3431
|
|
3432 static char *
|
200
|
3433 ngx_http_upstream_init_main_conf(ngx_conf_t *cf, void *conf)
|
58
|
3434 {
|
|
3435 ngx_http_upstream_main_conf_t *umcf = conf;
|
|
3436
|
200
|
3437 ngx_uint_t i;
|
|
3438 ngx_array_t headers_in;
|
|
3439 ngx_hash_key_t *hk;
|
|
3440 ngx_hash_init_t hash;
|
260
|
3441 ngx_http_upstream_init_pt init;
|
200
|
3442 ngx_http_upstream_header_t *header;
|
|
3443 ngx_http_upstream_srv_conf_t **uscfp;
|
|
3444
|
|
3445 uscfp = umcf->upstreams.elts;
|
|
3446
|
|
3447 for (i = 0; i < umcf->upstreams.nelts; i++) {
|
260
|
3448
|
|
3449 init = uscfp[i]->peer.init_upstream ? uscfp[i]->peer.init_upstream:
|
|
3450 ngx_http_upstream_init_round_robin;
|
|
3451
|
|
3452 if (init(cf, uscfp[i]) != NGX_OK) {
|
200
|
3453 return NGX_CONF_ERROR;
|
|
3454 }
|
|
3455 }
|
198
|
3456
|
212
|
3457
|
260
|
3458 /* upstream_headers_in_hash */
|
|
3459
|
198
|
3460 if (ngx_array_init(&headers_in, cf->temp_pool, 32, sizeof(ngx_hash_key_t))
|
|
3461 != NGX_OK)
|
58
|
3462 {
|
|
3463 return NGX_CONF_ERROR;
|
|
3464 }
|
|
3465
|
198
|
3466 for (header = ngx_http_upstream_headers_in; header->name.len; header++) {
|
|
3467 hk = ngx_array_push(&headers_in);
|
|
3468 if (hk == NULL) {
|
|
3469 return NGX_CONF_ERROR;
|
|
3470 }
|
|
3471
|
|
3472 hk->key = header->name;
|
|
3473 hk->key_hash = ngx_hash_key_lc(header->name.data, header->name.len);
|
|
3474 hk->value = header;
|
|
3475 }
|
|
3476
|
|
3477 hash.hash = &umcf->headers_in_hash;
|
|
3478 hash.key = ngx_hash_key_lc;
|
|
3479 hash.max_size = 512;
|
244
|
3480 hash.bucket_size = ngx_align(64, ngx_cacheline_size);
|
198
|
3481 hash.name = "upstream_headers_in_hash";
|
|
3482 hash.pool = cf->pool;
|
|
3483 hash.temp_pool = NULL;
|
|
3484
|
|
3485 if (ngx_hash_init(&hash, headers_in.elts, headers_in.nelts) != NGX_OK) {
|
|
3486 return NGX_CONF_ERROR;
|
|
3487 }
|
58
|
3488
|
|
3489 return NGX_CONF_OK;
|
|
3490 }
|