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