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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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464
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12 #if (NGX_HTTP_CACHE)
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13 static ngx_int_t ngx_http_upstream_cache(ngx_http_request_t *r,
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14 ngx_http_upstream_t *u);
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15 static ngx_int_t ngx_http_upstream_cache_send(ngx_http_request_t *r,
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16 ngx_http_upstream_t *u);
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17 #endif
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18
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348
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19 static void ngx_http_upstream_resolve_handler(ngx_resolver_ctx_t *ctx);
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58
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20 static void ngx_http_upstream_rd_check_broken_connection(ngx_http_request_t *r);
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21 static void ngx_http_upstream_wr_check_broken_connection(ngx_http_request_t *r);
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22 static void ngx_http_upstream_check_broken_connection(ngx_http_request_t *r,
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23 ngx_event_t *ev);
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28
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24 static void ngx_http_upstream_connect(ngx_http_request_t *r,
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36
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25 ngx_http_upstream_t *u);
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58
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26 static ngx_int_t ngx_http_upstream_reinit(ngx_http_request_t *r,
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36
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27 ngx_http_upstream_t *u);
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28
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28 static void ngx_http_upstream_send_request(ngx_http_request_t *r,
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36
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29 ngx_http_upstream_t *u);
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430
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30 static void ngx_http_upstream_send_request_handler(ngx_http_request_t *r,
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31 ngx_http_upstream_t *u);
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32 static void ngx_http_upstream_process_header(ngx_http_request_t *r,
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33 ngx_http_upstream_t *u);
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412
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34 static ngx_int_t ngx_http_upstream_test_next(ngx_http_request_t *r,
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35 ngx_http_upstream_t *u);
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36 static ngx_int_t ngx_http_upstream_intercept_errors(ngx_http_request_t *r,
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37 ngx_http_upstream_t *u);
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294
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38 static ngx_int_t ngx_http_upstream_test_connect(ngx_connection_t *c);
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464
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39 static ngx_int_t ngx_http_upstream_process_headers(ngx_http_request_t *r,
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40 ngx_http_upstream_t *u);
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430
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41 static void ngx_http_upstream_process_body_in_memory(ngx_http_request_t *r,
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42 ngx_http_upstream_t *u);
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28
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43 static void ngx_http_upstream_send_response(ngx_http_request_t *r,
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36
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44 ngx_http_upstream_t *u);
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130
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45 static void
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46 ngx_http_upstream_process_non_buffered_downstream(ngx_http_request_t *r);
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430
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47 static void
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48 ngx_http_upstream_process_non_buffered_upstream(ngx_http_request_t *r,
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49 ngx_http_upstream_t *u);
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428
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50 static void
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51 ngx_http_upstream_process_non_buffered_request(ngx_http_request_t *r,
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52 ngx_uint_t do_write);
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130
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53 static ngx_int_t ngx_http_upstream_non_buffered_filter_init(void *data);
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54 static ngx_int_t ngx_http_upstream_non_buffered_filter(void *data,
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55 ssize_t bytes);
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58
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56 static void ngx_http_upstream_process_downstream(ngx_http_request_t *r);
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430
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57 static void ngx_http_upstream_process_upstream(ngx_http_request_t *r,
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58 ngx_http_upstream_t *u);
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428
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59 static void ngx_http_upstream_process_request(ngx_http_request_t *r);
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318
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60 static void ngx_http_upstream_store(ngx_http_request_t *r,
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61 ngx_http_upstream_t *u);
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430
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62 static void ngx_http_upstream_dummy_handler(ngx_http_request_t *r,
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63 ngx_http_upstream_t *u);
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28
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64 static void ngx_http_upstream_next(ngx_http_request_t *r,
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36
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65 ngx_http_upstream_t *u, ngx_uint_t ft_type);
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118
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66 static void ngx_http_upstream_cleanup(void *data);
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28
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67 static void ngx_http_upstream_finalize_request(ngx_http_request_t *r,
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36
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68 ngx_http_upstream_t *u, ngx_int_t rc);
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28
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69
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58
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70 static ngx_int_t ngx_http_upstream_process_header_line(ngx_http_request_t *r,
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71 ngx_table_elt_t *h, ngx_uint_t offset);
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72 static ngx_int_t
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472
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73 ngx_http_upstream_process_cache_control(ngx_http_request_t *r,
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58
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74 ngx_table_elt_t *h, ngx_uint_t offset);
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75 static ngx_int_t ngx_http_upstream_ignore_header_line(ngx_http_request_t *r,
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76 ngx_table_elt_t *h, ngx_uint_t offset);
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472
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77 static ngx_int_t ngx_http_upstream_process_expires(ngx_http_request_t *r,
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78 ngx_table_elt_t *h, ngx_uint_t offset);
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79 static ngx_int_t ngx_http_upstream_process_accel_expires(ngx_http_request_t *r,
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80 ngx_table_elt_t *h, ngx_uint_t offset);
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76
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81 static ngx_int_t ngx_http_upstream_process_limit_rate(ngx_http_request_t *r,
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82 ngx_table_elt_t *h, ngx_uint_t offset);
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198
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83 static ngx_int_t ngx_http_upstream_process_buffering(ngx_http_request_t *r,
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58
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84 ngx_table_elt_t *h, ngx_uint_t offset);
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206
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85 static ngx_int_t ngx_http_upstream_process_charset(ngx_http_request_t *r,
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86 ngx_table_elt_t *h, ngx_uint_t offset);
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198
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87 static ngx_int_t ngx_http_upstream_copy_header_line(ngx_http_request_t *r,
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58
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88 ngx_table_elt_t *h, ngx_uint_t offset);
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89 static ngx_int_t
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90 ngx_http_upstream_copy_multi_header_lines(ngx_http_request_t *r,
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91 ngx_table_elt_t *h, ngx_uint_t offset);
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92 static ngx_int_t ngx_http_upstream_copy_content_type(ngx_http_request_t *r,
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93 ngx_table_elt_t *h, ngx_uint_t offset);
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94 static ngx_int_t ngx_http_upstream_copy_content_length(ngx_http_request_t *r,
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95 ngx_table_elt_t *h, ngx_uint_t offset);
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464
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96 static ngx_int_t ngx_http_upstream_copy_last_modified(ngx_http_request_t *r,
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97 ngx_table_elt_t *h, ngx_uint_t offset);
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58
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98 static ngx_int_t ngx_http_upstream_rewrite_location(ngx_http_request_t *r,
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99 ngx_table_elt_t *h, ngx_uint_t offset);
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100 static ngx_int_t ngx_http_upstream_rewrite_refresh(ngx_http_request_t *r,
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101 ngx_table_elt_t *h, ngx_uint_t offset);
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464
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102 static ngx_int_t ngx_http_upstream_copy_allow_ranges(ngx_http_request_t *r,
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103 ngx_table_elt_t *h, ngx_uint_t offset);
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104
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58
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105 #if (NGX_HTTP_GZIP)
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106 static ngx_int_t ngx_http_upstream_copy_content_encoding(ngx_http_request_t *r,
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107 ngx_table_elt_t *h, ngx_uint_t offset);
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108 #endif
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109
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122
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110 static ngx_int_t ngx_http_upstream_add_variables(ngx_conf_t *cf);
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298
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111 static ngx_int_t ngx_http_upstream_addr_variable(ngx_http_request_t *r,
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112 ngx_http_variable_value_t *v, uintptr_t data);
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122
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113 static ngx_int_t ngx_http_upstream_status_variable(ngx_http_request_t *r,
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114 ngx_http_variable_value_t *v, uintptr_t data);
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115 static ngx_int_t ngx_http_upstream_response_time_variable(ngx_http_request_t *r,
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116 ngx_http_variable_value_t *v, uintptr_t data);
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430
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117 static ngx_int_t ngx_http_upstream_response_length_variable(
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118 ngx_http_request_t *r, ngx_http_variable_value_t *v, uintptr_t data);
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122
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119
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200
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120 static char *ngx_http_upstream(ngx_conf_t *cf, ngx_command_t *cmd, void *dummy);
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121 static char *ngx_http_upstream_server(ngx_conf_t *cf, ngx_command_t *cmd,
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122 void *conf);
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123
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58
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124 static void *ngx_http_upstream_create_main_conf(ngx_conf_t *cf);
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200
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125 static char *ngx_http_upstream_init_main_conf(ngx_conf_t *cf, void *conf);
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58
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126
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126
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127 #if (NGX_HTTP_SSL)
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140
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128 static void ngx_http_upstream_ssl_init_connection(ngx_http_request_t *,
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129 ngx_http_upstream_t *u, ngx_connection_t *c);
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126
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130 static void ngx_http_upstream_ssl_handshake(ngx_connection_t *c);
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131 #endif
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132
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58
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133
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134 ngx_http_upstream_header_t ngx_http_upstream_headers_in[] = {
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135
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136 { ngx_string("Status"),
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137 ngx_http_upstream_process_header_line,
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138 offsetof(ngx_http_upstream_headers_in_t, status),
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198
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139 ngx_http_upstream_copy_header_line, 0, 0 },
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58
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140
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141 { ngx_string("Content-Type"),
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142 ngx_http_upstream_process_header_line,
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143 offsetof(ngx_http_upstream_headers_in_t, content_type),
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222
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144 ngx_http_upstream_copy_content_type, 0, 1 },
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58
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145
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146 { ngx_string("Content-Length"),
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147 ngx_http_upstream_process_header_line,
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148 offsetof(ngx_http_upstream_headers_in_t, content_length),
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64
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149 ngx_http_upstream_copy_content_length, 0, 0 },
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58
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150
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151 { ngx_string("Date"),
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152 ngx_http_upstream_process_header_line,
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153 offsetof(ngx_http_upstream_headers_in_t, date),
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198
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154 ngx_http_upstream_copy_header_line,
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155 offsetof(ngx_http_headers_out_t, date), 0 },
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58
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156
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318
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157 { ngx_string("Last-Modified"),
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158 ngx_http_upstream_process_header_line,
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159 offsetof(ngx_http_upstream_headers_in_t, last_modified),
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464
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160 ngx_http_upstream_copy_last_modified, 0, 0 },
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318
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161
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58
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162 { ngx_string("Server"),
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163 ngx_http_upstream_process_header_line,
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164 offsetof(ngx_http_upstream_headers_in_t, server),
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198
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165 ngx_http_upstream_copy_header_line,
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166 offsetof(ngx_http_headers_out_t, server), 0 },
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58
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167
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78
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168 { ngx_string("WWW-Authenticate"),
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169 ngx_http_upstream_process_header_line,
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170 offsetof(ngx_http_upstream_headers_in_t, www_authenticate),
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171 ngx_http_upstream_copy_header_line, 0, 0 },
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172
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58
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173 { ngx_string("Location"),
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392
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174 ngx_http_upstream_process_header_line,
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175 offsetof(ngx_http_upstream_headers_in_t, location),
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64
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176 ngx_http_upstream_rewrite_location, 0, 0 },
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58
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177
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178 { ngx_string("Refresh"),
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179 ngx_http_upstream_ignore_header_line, 0,
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64
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180 ngx_http_upstream_rewrite_refresh, 0, 0 },
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181
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182 { ngx_string("Set-Cookie"),
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183 ngx_http_upstream_ignore_header_line, 0,
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80
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184 ngx_http_upstream_copy_header_line, 0, 1 },
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185
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186 { ngx_string("Content-Disposition"),
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187 ngx_http_upstream_ignore_header_line, 0,
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188 ngx_http_upstream_copy_header_line, 0, 1 },
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58
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189
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190 { ngx_string("Cache-Control"),
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472
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191 ngx_http_upstream_process_cache_control, 0,
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58
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192 ngx_http_upstream_copy_multi_header_lines,
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64
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193 offsetof(ngx_http_headers_out_t, cache_control), 1 },
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58
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194
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122
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195 { ngx_string("Expires"),
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472
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196 ngx_http_upstream_process_expires, 0,
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122
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197 ngx_http_upstream_copy_header_line,
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198 offsetof(ngx_http_headers_out_t, expires), 1 },
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199
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126
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200 { ngx_string("Accept-Ranges"),
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201 ngx_http_upstream_process_header_line,
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202 offsetof(ngx_http_upstream_headers_in_t, accept_ranges),
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464
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203 ngx_http_upstream_copy_allow_ranges,
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126
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204 offsetof(ngx_http_headers_out_t, accept_ranges), 1 },
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205
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58
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206 { ngx_string("Connection"),
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207 ngx_http_upstream_ignore_header_line, 0,
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64
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208 ngx_http_upstream_ignore_header_line, 0, 0 },
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58
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209
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190
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210 { ngx_string("Keep-Alive"),
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211 ngx_http_upstream_ignore_header_line, 0,
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212 ngx_http_upstream_ignore_header_line, 0, 0 },
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213
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58
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214 { ngx_string("X-Powered-By"),
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215 ngx_http_upstream_ignore_header_line, 0,
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198
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216 ngx_http_upstream_copy_header_line, 0, 0 },
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58
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217
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218 { ngx_string("X-Accel-Expires"),
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472
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219 ngx_http_upstream_process_accel_expires, 0,
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198
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220 ngx_http_upstream_copy_header_line, 0, 0 },
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64
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221
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222 { ngx_string("X-Accel-Redirect"),
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223 ngx_http_upstream_process_header_line,
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224 offsetof(ngx_http_upstream_headers_in_t, x_accel_redirect),
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225 ngx_http_upstream_ignore_header_line, 0, 0 },
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58
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226
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76
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227 { ngx_string("X-Accel-Limit-Rate"),
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228 ngx_http_upstream_process_limit_rate, 0,
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229 ngx_http_upstream_ignore_header_line, 0, 0 },
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230
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198
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231 { ngx_string("X-Accel-Buffering"),
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232 ngx_http_upstream_process_buffering, 0,
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233 ngx_http_upstream_ignore_header_line, 0, 0 },
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234
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206
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235 { ngx_string("X-Accel-Charset"),
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236 ngx_http_upstream_process_charset, 0,
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237 ngx_http_upstream_ignore_header_line, 0, 0 },
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238
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58
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239 #if (NGX_HTTP_GZIP)
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240 { ngx_string("Content-Encoding"),
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241 ngx_http_upstream_process_header_line,
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242 offsetof(ngx_http_upstream_headers_in_t, content_encoding),
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64
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243 ngx_http_upstream_copy_content_encoding, 0, 0 },
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58
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244 #endif
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245
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64
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246 { ngx_null_string, NULL, 0, NULL, 0, 0 }
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58
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247 };
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28
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248
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249
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200
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250 static ngx_command_t ngx_http_upstream_commands[] = {
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251
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252 { ngx_string("upstream"),
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253 NGX_HTTP_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_TAKE1,
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254 ngx_http_upstream,
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255 0,
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256 0,
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257 NULL },
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258
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259 { ngx_string("server"),
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260
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260 NGX_HTTP_UPS_CONF|NGX_CONF_1MORE,
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200
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261 ngx_http_upstream_server,
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262 NGX_HTTP_SRV_CONF_OFFSET,
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263 0,
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264 NULL },
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265
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266 ngx_null_command
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267 };
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268
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269
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270 static ngx_http_module_t ngx_http_upstream_module_ctx = {
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122
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271 ngx_http_upstream_add_variables, /* preconfiguration */
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58
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272 NULL, /* postconfiguration */
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273
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274 ngx_http_upstream_create_main_conf, /* create main configuration */
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200
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275 ngx_http_upstream_init_main_conf, /* init main configuration */
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28
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276
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277 NULL, /* create server configuration */
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278 NULL, /* merge server configuration */
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279
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280 NULL, /* create location configuration */
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281 NULL /* merge location configuration */
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282 };
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126
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283
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28
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284
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285 ngx_module_t ngx_http_upstream_module = {
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58
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286 NGX_MODULE_V1,
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28
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287 &ngx_http_upstream_module_ctx, /* module context */
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200
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288 ngx_http_upstream_commands, /* module directives */
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28
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289 NGX_HTTP_MODULE, /* module type */
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90
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290 NULL, /* init master */
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28
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291 NULL, /* init module */
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90
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292 NULL, /* init process */
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293 NULL, /* init thread */
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294 NULL, /* exit thread */
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295 NULL, /* exit process */
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296 NULL, /* exit master */
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297 NGX_MODULE_V1_PADDING
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28
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298 };
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299
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300
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122
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301 static ngx_http_variable_t ngx_http_upstream_vars[] = {
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302
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298
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303 { ngx_string("upstream_addr"), NULL,
|
|
426
|
304 ngx_http_upstream_addr_variable, 0,
|
|
|
305 NGX_HTTP_VAR_NOHASH|NGX_HTTP_VAR_NOCACHEABLE, 0 },
|
|
298
|
306
|
|
186
|
307 { ngx_string("upstream_status"), NULL,
|
|
426
|
308 ngx_http_upstream_status_variable, 0,
|
|
|
309 NGX_HTTP_VAR_NOHASH|NGX_HTTP_VAR_NOCACHEABLE, 0 },
|
|
122
|
310
|
|
186
|
311 { ngx_string("upstream_response_time"), NULL,
|
|
426
|
312 ngx_http_upstream_response_time_variable, 0,
|
|
|
313 NGX_HTTP_VAR_NOHASH|NGX_HTTP_VAR_NOCACHEABLE, 0 },
|
|
122
|
314
|
|
430
|
315 { ngx_string("upstream_response_length"), NULL,
|
|
|
316 ngx_http_upstream_response_length_variable, 0,
|
|
|
317 NGX_HTTP_VAR_NOHASH|NGX_HTTP_VAR_NOCACHEABLE, 0 },
|
|
|
318
|
|
186
|
319 { ngx_null_string, NULL, NULL, 0, 0, 0 }
|
|
122
|
320 };
|
|
|
321
|
|
|
322
|
|
412
|
323 static ngx_http_upstream_next_t ngx_http_upstream_next_errors[] = {
|
|
|
324 { 500, NGX_HTTP_UPSTREAM_FT_HTTP_500 },
|
|
|
325 { 502, NGX_HTTP_UPSTREAM_FT_HTTP_502 },
|
|
|
326 { 503, NGX_HTTP_UPSTREAM_FT_HTTP_503 },
|
|
|
327 { 504, NGX_HTTP_UPSTREAM_FT_HTTP_504 },
|
|
|
328 { 404, NGX_HTTP_UPSTREAM_FT_HTTP_404 },
|
|
|
329 { 0, 0 }
|
|
|
330 };
|
|
|
331
|
|
36
|
332 void
|
|
|
333 ngx_http_upstream_init(ngx_http_request_t *r)
|
|
28
|
334 {
|
|
348
|
335 ngx_str_t *host;
|
|
|
336 ngx_uint_t i;
|
|
|
337 ngx_connection_t *c;
|
|
|
338 ngx_resolver_ctx_t *ctx, temp;
|
|
|
339 ngx_http_cleanup_t *cln;
|
|
|
340 ngx_http_upstream_t *u;
|
|
|
341 ngx_http_core_loc_conf_t *clcf;
|
|
|
342 ngx_http_upstream_srv_conf_t *uscf, **uscfp;
|
|
|
343 ngx_http_upstream_main_conf_t *umcf;
|
|
28
|
344
|
|
|
345 c = r->connection;
|
|
|
346
|
|
|
347 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
348 "http init upstream, client timer: %d", c->read->timer_set);
|
|
|
349
|
|
|
350 if (c->read->timer_set) {
|
|
|
351 ngx_del_timer(c->read);
|
|
|
352 }
|
|
|
353
|
|
178
|
354 u = r->upstream;
|
|
|
355
|
|
482
|
356 u->store = (u->conf->store || u->conf->store_lengths);
|
|
|
357
|
|
|
358 if (!u->store && !r->post_action && !u->conf->ignore_client_abort) {
|
|
164
|
359 r->read_event_handler = ngx_http_upstream_rd_check_broken_connection;
|
|
|
360 r->write_event_handler = ngx_http_upstream_wr_check_broken_connection;
|
|
|
361 }
|
|
126
|
362
|
|
28
|
363 if (ngx_event_flags & NGX_USE_CLEAR_EVENT) {
|
|
|
364
|
|
|
365 if (!c->write->active) {
|
|
80
|
366 if (ngx_add_event(c->write, NGX_WRITE_EVENT, NGX_CLEAR_EVENT)
|
|
|
367 == NGX_ERROR)
|
|
28
|
368 {
|
|
|
369 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
370 return;
|
|
|
371 }
|
|
|
372 }
|
|
|
373 }
|
|
|
374
|
|
86
|
375 if (r->request_body) {
|
|
|
376 u->request_bufs = r->request_body->bufs;
|
|
|
377 }
|
|
58
|
378
|
|
464
|
379 #if (NGX_HTTP_CACHE)
|
|
|
380
|
|
|
381 if (u->conf->cache) {
|
|
|
382 ngx_int_t rc;
|
|
|
383
|
|
|
384 rc = ngx_http_upstream_cache(r, u);
|
|
|
385
|
|
|
386 if (rc == NGX_DONE) {
|
|
|
387 return;
|
|
|
388 }
|
|
|
389
|
|
|
390 if (rc != NGX_DECLINED) {
|
|
|
391 ngx_http_finalize_request(r, rc);
|
|
|
392 return;
|
|
|
393 }
|
|
|
394 }
|
|
|
395
|
|
|
396 #endif
|
|
|
397
|
|
86
|
398 if (u->create_request(r) != NGX_OK) {
|
|
28
|
399 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
400 return;
|
|
|
401 }
|
|
|
402
|
|
58
|
403 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
28
|
404
|
|
|
405 u->output.pool = r->pool;
|
|
|
406 u->output.bufs.num = 1;
|
|
58
|
407 u->output.bufs.size = clcf->client_body_buffer_size;
|
|
28
|
408 u->output.output_filter = ngx_chain_writer;
|
|
|
409 u->output.filter_ctx = &u->writer;
|
|
|
410
|
|
|
411 u->writer.pool = r->pool;
|
|
|
412
|
|
296
|
413 if (r->upstream_states == NULL) {
|
|
|
414
|
|
|
415 r->upstream_states = ngx_array_create(r->pool, 1,
|
|
|
416 sizeof(ngx_http_upstream_state_t));
|
|
|
417 if (r->upstream_states == NULL) {
|
|
|
418 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
419 return;
|
|
|
420 }
|
|
|
421
|
|
|
422 } else {
|
|
|
423
|
|
|
424 u->state = ngx_array_push(r->upstream_states);
|
|
|
425 if (u->state == NULL) {
|
|
|
426 ngx_http_upstream_finalize_request(r, u,
|
|
|
427 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
428 return;
|
|
|
429 }
|
|
|
430
|
|
|
431 ngx_memzero(u->state, sizeof(ngx_http_upstream_state_t));
|
|
28
|
432 }
|
|
|
433
|
|
142
|
434 cln = ngx_http_cleanup_add(r, 0);
|
|
118
|
435 if (cln == NULL) {
|
|
|
436 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
437 return;
|
|
|
438 }
|
|
|
439
|
|
|
440 cln->handler = ngx_http_upstream_cleanup;
|
|
|
441 cln->data = r;
|
|
|
442 u->cleanup = &cln->handler;
|
|
|
443
|
|
348
|
444 if (u->resolved == NULL) {
|
|
|
445
|
|
|
446 uscf = u->conf->upstream;
|
|
|
447
|
|
|
448 } else {
|
|
|
449
|
|
434
|
450 if (u->resolved->sockaddr) {
|
|
|
451
|
|
|
452 if (ngx_http_upstream_create_round_robin_peer(r, u->resolved)
|
|
|
453 != NGX_OK)
|
|
|
454 {
|
|
|
455 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
456 return;
|
|
|
457 }
|
|
|
458
|
|
|
459 ngx_http_upstream_connect(r, u);
|
|
|
460
|
|
|
461 return;
|
|
|
462 }
|
|
|
463
|
|
356
|
464 host = &u->resolved->host;
|
|
348
|
465
|
|
|
466 umcf = ngx_http_get_module_main_conf(r, ngx_http_upstream_module);
|
|
|
467
|
|
|
468 uscfp = umcf->upstreams.elts;
|
|
|
469
|
|
|
470 for (i = 0; i < umcf->upstreams.nelts; i++) {
|
|
|
471
|
|
|
472 uscf = uscfp[i];
|
|
|
473
|
|
|
474 if (uscf->host.len == host->len
|
|
416
|
475 && ((uscf->port == 0 && u->resolved->no_port)
|
|
366
|
476 || uscf->port == u->resolved->port)
|
|
348
|
477 && ngx_memcmp(uscf->host.data, host->data, host->len) == 0)
|
|
|
478 {
|
|
|
479 goto found;
|
|
|
480 }
|
|
|
481 }
|
|
|
482
|
|
|
483 temp.name = *host;
|
|
|
484
|
|
|
485 ctx = ngx_resolve_start(clcf->resolver, &temp);
|
|
|
486 if (ctx == NULL) {
|
|
|
487 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
488 return;
|
|
|
489 }
|
|
|
490
|
|
354
|
491 if (ctx == NGX_NO_RESOLVER) {
|
|
|
492 ngx_log_error(NGX_LOG_ERR, c->log, 0,
|
|
|
493 "no resolver defined to resolve %V", host);
|
|
|
494
|
|
|
495 ngx_http_finalize_request(r, NGX_HTTP_BAD_GATEWAY);
|
|
|
496 return;
|
|
|
497 }
|
|
|
498
|
|
348
|
499 ctx->name = *host;
|
|
|
500 ctx->type = NGX_RESOLVE_A;
|
|
|
501 ctx->handler = ngx_http_upstream_resolve_handler;
|
|
|
502 ctx->data = r;
|
|
|
503 ctx->timeout = clcf->resolver_timeout;
|
|
|
504
|
|
372
|
505 u->resolved->ctx = ctx;
|
|
|
506
|
|
348
|
507 if (ngx_resolve_name(ctx) != NGX_OK) {
|
|
372
|
508 u->resolved->ctx = NULL;
|
|
348
|
509 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
510 return;
|
|
|
511 }
|
|
|
512
|
|
|
513 return;
|
|
|
514 }
|
|
|
515
|
|
|
516 found:
|
|
|
517
|
|
|
518 if (uscf->peer.init(r, uscf) != NGX_OK) {
|
|
|
519 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
520 return;
|
|
|
521 }
|
|
|
522
|
|
28
|
523 ngx_http_upstream_connect(r, u);
|
|
|
524 }
|
|
|
525
|
|
|
526
|
|
464
|
527 #if (NGX_HTTP_CACHE)
|
|
|
528
|
|
|
529 static ngx_int_t
|
|
|
530 ngx_http_upstream_cache(ngx_http_request_t *r, ngx_http_upstream_t *u)
|
|
|
531 {
|
|
|
532 ngx_int_t rc;
|
|
|
533 ngx_http_cache_t *c;
|
|
|
534
|
|
480
|
535 if (!(r->method & (NGX_HTTP_GET|NGX_HTTP_HEAD))) {
|
|
472
|
536 return NGX_DECLINED;
|
|
|
537 }
|
|
|
538
|
|
480
|
539 if (r->method & NGX_HTTP_HEAD) {
|
|
|
540 u->method = ngx_http_core_get_method;
|
|
|
541 }
|
|
|
542
|
|
464
|
543 c = ngx_pcalloc(r->pool, sizeof(ngx_http_cache_t));
|
|
|
544 if (c == NULL) {
|
|
|
545 return NGX_ERROR;
|
|
|
546 }
|
|
|
547
|
|
|
548 if (ngx_array_init(&c->keys, r->pool, 4, sizeof(ngx_str_t)) != NGX_OK) {
|
|
|
549 return NGX_ERROR;
|
|
|
550 }
|
|
|
551
|
|
|
552 r->cache = c;
|
|
|
553 c->file.log = r->connection->log;
|
|
|
554
|
|
|
555 if (u->create_key(r) != NGX_OK) {
|
|
|
556 return NGX_ERROR;
|
|
|
557 }
|
|
|
558
|
|
|
559 /* TODO: add keys */
|
|
|
560
|
|
|
561 ngx_http_file_cache_create_key(r);
|
|
|
562
|
|
|
563 u->cacheable = 1;
|
|
|
564
|
|
|
565 c->min_uses = r->upstream->conf->cache_min_uses;
|
|
|
566 c->body_start = r->upstream->conf->buffer_size;
|
|
|
567 c->file_cache = u->conf->cache->data;
|
|
|
568
|
|
|
569 rc = ngx_http_file_cache_open(r);
|
|
|
570
|
|
|
571 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
572 "http upstream cache: %i u:%ui", rc, c->uses);
|
|
|
573
|
|
|
574 if (rc == NGX_OK) {
|
|
|
575
|
|
|
576 rc = ngx_http_upstream_cache_send(r, u);
|
|
|
577
|
|
|
578 if (rc != NGX_HTTP_UPSTREAM_INVALID_HEADER) {
|
|
|
579 return rc;
|
|
|
580 }
|
|
|
581
|
|
|
582 } else if (rc == NGX_ERROR) {
|
|
|
583
|
|
|
584 return NGX_ERROR;
|
|
|
585
|
|
|
586 } else if (rc == NGX_HTTP_CACHE_STALE) {
|
|
|
587
|
|
472
|
588 c->valid_sec = 0;
|
|
464
|
589 u->stale_cache = 1;
|
|
|
590 u->buffer.start = NULL;
|
|
|
591
|
|
|
592 } else if (rc == NGX_DECLINED) {
|
|
|
593
|
|
|
594 if ((size_t) (u->buffer.end - u->buffer.start) < u->conf->buffer_size) {
|
|
|
595 u->buffer.start = NULL;
|
|
|
596
|
|
|
597 } else {
|
|
|
598 u->buffer.pos = u->buffer.start + c->header_start;
|
|
|
599 u->buffer.last = u->buffer.pos;
|
|
|
600 }
|
|
|
601
|
|
|
602 } else if (rc == NGX_AGAIN) {
|
|
|
603
|
|
|
604 u->cacheable = 0;
|
|
|
605
|
|
|
606 } else {
|
|
|
607
|
|
|
608 /* cached NGX_HTTP_BAD_GATEWAY, NGX_HTTP_GATEWAY_TIME_OUT, etc. */
|
|
|
609
|
|
|
610 return rc;
|
|
|
611 }
|
|
|
612
|
|
|
613 r->cached = 0;
|
|
|
614
|
|
|
615 return NGX_DECLINED;
|
|
|
616 }
|
|
|
617
|
|
|
618
|
|
|
619 static ngx_int_t
|
|
|
620 ngx_http_upstream_cache_send(ngx_http_request_t *r, ngx_http_upstream_t *u)
|
|
|
621 {
|
|
|
622 ngx_int_t rc;
|
|
|
623 ngx_http_cache_t *c;
|
|
|
624
|
|
|
625 c = r->cache;
|
|
|
626
|
|
|
627 /* TODO: cache stack */
|
|
|
628
|
|
|
629 u->buffer = *c->buf;
|
|
|
630 u->buffer.pos += c->header_start;
|
|
|
631
|
|
|
632 ngx_memzero(&u->headers_in, sizeof(ngx_http_upstream_headers_in_t));
|
|
|
633
|
|
|
634 if (ngx_list_init(&u->headers_in.headers, r->pool, 8,
|
|
|
635 sizeof(ngx_table_elt_t))
|
|
|
636 != NGX_OK)
|
|
|
637 {
|
|
|
638 return NGX_ERROR;
|
|
|
639 }
|
|
|
640
|
|
|
641 rc = u->process_header(r);
|
|
|
642
|
|
|
643 if (rc == NGX_OK) {
|
|
|
644
|
|
|
645 if (ngx_http_upstream_process_headers(r, u) != NGX_OK) {
|
|
|
646 return NGX_DONE;
|
|
|
647 }
|
|
|
648
|
|
|
649 return ngx_http_cache_send(r);
|
|
|
650 }
|
|
|
651
|
|
|
652 if (rc == NGX_ERROR) {
|
|
|
653 return NGX_ERROR;
|
|
|
654 }
|
|
|
655
|
|
|
656 /* rc == NGX_HTTP_UPSTREAM_INVALID_HEADER */
|
|
|
657
|
|
|
658 /* TODO: delete file */
|
|
|
659
|
|
|
660 return rc;
|
|
|
661 }
|
|
|
662
|
|
|
663 #endif
|
|
|
664
|
|
|
665
|
|
36
|
666 static void
|
|
348
|
667 ngx_http_upstream_resolve_handler(ngx_resolver_ctx_t *ctx)
|
|
|
668 {
|
|
|
669 ngx_http_request_t *r;
|
|
|
670 ngx_http_upstream_resolved_t *ur;
|
|
|
671
|
|
|
672 r = ctx->data;
|
|
|
673
|
|
|
674 r->upstream->resolved->ctx = NULL;
|
|
|
675
|
|
|
676 if (ctx->state) {
|
|
|
677 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
678 "%V could not be resolved (%i: %s)",
|
|
|
679 &ctx->name, ctx->state,
|
|
|
680 ngx_resolver_strerror(ctx->state));
|
|
|
681
|
|
|
682 ngx_resolve_name_done(ctx);
|
|
|
683 ngx_http_finalize_request(r, NGX_HTTP_BAD_GATEWAY);
|
|
|
684 return;
|
|
|
685 }
|
|
|
686
|
|
|
687 ur = r->upstream->resolved;
|
|
|
688 ur->naddrs = ctx->naddrs;
|
|
|
689 ur->addrs = ctx->addrs;
|
|
|
690
|
|
|
691 #if (NGX_DEBUG)
|
|
|
692 {
|
|
|
693 in_addr_t addr;
|
|
|
694 ngx_uint_t i;
|
|
|
695
|
|
|
696 for (i = 0; i < ctx->naddrs; i++) {
|
|
|
697 addr = ntohl(ur->addrs[i]);
|
|
|
698
|
|
|
699 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
700 "name was resolved to %ud.%ud.%ud.%ud",
|
|
|
701 (addr >> 24) & 0xff, (addr >> 16) & 0xff,
|
|
|
702 (addr >> 8) & 0xff, addr & 0xff);
|
|
|
703 }
|
|
|
704 }
|
|
|
705 #endif
|
|
|
706
|
|
|
707 if (ngx_http_upstream_create_round_robin_peer(r, ur) != NGX_OK) {
|
|
|
708 ngx_resolve_name_done(ctx);
|
|
|
709 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
710 return;
|
|
|
711 }
|
|
|
712
|
|
|
713 ngx_resolve_name_done(ctx);
|
|
|
714
|
|
|
715 ngx_http_upstream_connect(r, r->upstream);
|
|
|
716 }
|
|
|
717
|
|
|
718
|
|
|
719 static void
|
|
426
|
720 ngx_http_upstream_handler(ngx_event_t *ev)
|
|
|
721 {
|
|
|
722 ngx_connection_t *c;
|
|
|
723 ngx_http_request_t *r;
|
|
|
724 ngx_http_log_ctx_t *ctx;
|
|
|
725 ngx_http_upstream_t *u;
|
|
|
726
|
|
|
727 c = ev->data;
|
|
|
728 r = c->data;
|
|
|
729
|
|
|
730 u = r->upstream;
|
|
|
731 c = r->connection;
|
|
|
732
|
|
|
733 ctx = c->log->data;
|
|
|
734 ctx->current_request = r;
|
|
|
735
|
|
|
736 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
737 "http upstream request: \"%V?%V\"", &r->uri, &r->args);
|
|
|
738
|
|
|
739 if (ev->write) {
|
|
430
|
740 u->write_event_handler(r, u);
|
|
426
|
741
|
|
|
742 } else {
|
|
430
|
743 u->read_event_handler(r, u);
|
|
426
|
744 }
|
|
|
745
|
|
|
746 ngx_http_run_posted_requests(c);
|
|
|
747 }
|
|
|
748
|
|
|
749
|
|
|
750 static void
|
|
58
|
751 ngx_http_upstream_rd_check_broken_connection(ngx_http_request_t *r)
|
|
|
752 {
|
|
|
753 ngx_http_upstream_check_broken_connection(r, r->connection->read);
|
|
|
754 }
|
|
|
755
|
|
|
756
|
|
|
757 static void
|
|
|
758 ngx_http_upstream_wr_check_broken_connection(ngx_http_request_t *r)
|
|
|
759 {
|
|
|
760 ngx_http_upstream_check_broken_connection(r, r->connection->write);
|
|
|
761 }
|
|
|
762
|
|
|
763
|
|
|
764 static void
|
|
|
765 ngx_http_upstream_check_broken_connection(ngx_http_request_t *r,
|
|
|
766 ngx_event_t *ev)
|
|
28
|
767 {
|
|
|
768 int n;
|
|
|
769 char buf[1];
|
|
126
|
770 ngx_err_t err;
|
|
486
|
771 ngx_int_t event;
|
|
28
|
772 ngx_connection_t *c;
|
|
|
773 ngx_http_upstream_t *u;
|
|
|
774
|
|
76
|
775 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, ev->log, 0,
|
|
|
776 "http upstream check client, write event:%d, \"%V\"",
|
|
|
777 ev->write, &r->uri);
|
|
28
|
778
|
|
58
|
779 c = r->connection;
|
|
32
|
780 u = r->upstream;
|
|
|
781
|
|
132
|
782 if (c->error) {
|
|
486
|
783 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT) && ev->active) {
|
|
|
784
|
|
|
785 event = ev->write ? NGX_WRITE_EVENT : NGX_READ_EVENT;
|
|
|
786
|
|
|
787 if (ngx_del_event(ev, event, 0) != NGX_OK) {
|
|
|
788 ngx_http_upstream_finalize_request(r, u,
|
|
|
789 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
790 return;
|
|
|
791 }
|
|
|
792 }
|
|
|
793
|
|
482
|
794 if (!u->cacheable) {
|
|
|
795 ngx_http_upstream_finalize_request(r, u,
|
|
|
796 NGX_HTTP_CLIENT_CLOSED_REQUEST);
|
|
|
797 }
|
|
486
|
798
|
|
76
|
799 return;
|
|
|
800 }
|
|
|
801
|
|
32
|
802 if (u->peer.connection == NULL) {
|
|
|
803 return;
|
|
|
804 }
|
|
|
805
|
|
28
|
806 #if (NGX_HAVE_KQUEUE)
|
|
|
807
|
|
|
808 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
|
809
|
|
|
810 if (!ev->pending_eof) {
|
|
|
811 return;
|
|
|
812 }
|
|
|
813
|
|
|
814 ev->eof = 1;
|
|
132
|
815 c->error = 1;
|
|
28
|
816
|
|
|
817 if (ev->kq_errno) {
|
|
|
818 ev->error = 1;
|
|
|
819 }
|
|
|
820
|
|
482
|
821 if (!u->cacheable && u->peer.connection) {
|
|
28
|
822 ngx_log_error(NGX_LOG_INFO, ev->log, ev->kq_errno,
|
|
76
|
823 "kevent() reported that client closed prematurely "
|
|
|
824 "connection, so upstream connection is closed too");
|
|
28
|
825 ngx_http_upstream_finalize_request(r, u,
|
|
|
826 NGX_HTTP_CLIENT_CLOSED_REQUEST);
|
|
|
827 return;
|
|
|
828 }
|
|
|
829
|
|
|
830 ngx_log_error(NGX_LOG_INFO, ev->log, ev->kq_errno,
|
|
|
831 "kevent() reported that client closed "
|
|
|
832 "prematurely connection");
|
|
|
833
|
|
|
834 if (u->peer.connection == NULL) {
|
|
|
835 ngx_http_upstream_finalize_request(r, u,
|
|
|
836 NGX_HTTP_CLIENT_CLOSED_REQUEST);
|
|
|
837 return;
|
|
|
838 }
|
|
|
839
|
|
|
840 return;
|
|
|
841 }
|
|
|
842
|
|
|
843 #endif
|
|
|
844
|
|
|
845 n = recv(c->fd, buf, 1, MSG_PEEK);
|
|
|
846
|
|
|
847 err = ngx_socket_errno;
|
|
|
848
|
|
286
|
849 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ev->log, err,
|
|
|
850 "http upstream recv(): %d", n);
|
|
|
851
|
|
28
|
852 if (ev->write && (n >= 0 || err == NGX_EAGAIN)) {
|
|
|
853 return;
|
|
|
854 }
|
|
|
855
|
|
|
856 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT) && ev->active) {
|
|
486
|
857
|
|
|
858 event = ev->write ? NGX_WRITE_EVENT : NGX_READ_EVENT;
|
|
|
859
|
|
|
860 if (ngx_del_event(ev, event, 0) != NGX_OK) {
|
|
28
|
861 ngx_http_upstream_finalize_request(r, u,
|
|
|
862 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
863 return;
|
|
|
864 }
|
|
|
865 }
|
|
|
866
|
|
|
867 if (n > 0) {
|
|
|
868 return;
|
|
|
869 }
|
|
|
870
|
|
|
871 if (n == -1) {
|
|
|
872 if (err == NGX_EAGAIN) {
|
|
|
873 return;
|
|
|
874 }
|
|
|
875
|
|
|
876 ev->error = 1;
|
|
|
877
|
|
32
|
878 } else { /* n == 0 */
|
|
28
|
879 err = 0;
|
|
|
880 }
|
|
|
881
|
|
78
|
882 ev->eof = 1;
|
|
132
|
883 c->error = 1;
|
|
78
|
884
|
|
482
|
885 if (!u->cacheable && u->peer.connection) {
|
|
28
|
886 ngx_log_error(NGX_LOG_INFO, ev->log, err,
|
|
|
887 "client closed prematurely connection, "
|
|
|
888 "so upstream connection is closed too");
|
|
|
889 ngx_http_upstream_finalize_request(r, u,
|
|
|
890 NGX_HTTP_CLIENT_CLOSED_REQUEST);
|
|
|
891 return;
|
|
|
892 }
|
|
|
893
|
|
|
894 ngx_log_error(NGX_LOG_INFO, ev->log, err,
|
|
|
895 "client closed prematurely connection");
|
|
|
896
|
|
|
897 if (u->peer.connection == NULL) {
|
|
|
898 ngx_http_upstream_finalize_request(r, u,
|
|
|
899 NGX_HTTP_CLIENT_CLOSED_REQUEST);
|
|
|
900 return;
|
|
|
901 }
|
|
|
902 }
|
|
|
903
|
|
|
904
|
|
36
|
905 static void
|
|
|
906 ngx_http_upstream_connect(ngx_http_request_t *r, ngx_http_upstream_t *u)
|
|
28
|
907 {
|
|
140
|
908 ngx_int_t rc;
|
|
214
|
909 ngx_time_t *tp;
|
|
140
|
910 ngx_connection_t *c;
|
|
28
|
911
|
|
32
|
912 r->connection->log->action = "connecting to upstream";
|
|
28
|
913
|
|
|
914 r->connection->single_connection = 0;
|
|
|
915
|
|
262
|
916 if (u->state && u->state->response_sec) {
|
|
214
|
917 tp = ngx_timeofday();
|
|
262
|
918 u->state->response_sec = tp->sec - u->state->response_sec;
|
|
|
919 u->state->response_msec = tp->msec - u->state->response_msec;
|
|
214
|
920 }
|
|
|
921
|
|
296
|
922 u->state = ngx_array_push(r->upstream_states);
|
|
214
|
923 if (u->state == NULL) {
|
|
|
924 ngx_http_upstream_finalize_request(r, u,
|
|
|
925 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
926 return;
|
|
|
927 }
|
|
|
928
|
|
|
929 ngx_memzero(u->state, sizeof(ngx_http_upstream_state_t));
|
|
|
930
|
|
|
931 tp = ngx_timeofday();
|
|
262
|
932 u->state->response_sec = tp->sec;
|
|
|
933 u->state->response_msec = tp->msec;
|
|
214
|
934
|
|
28
|
935 rc = ngx_event_connect_peer(&u->peer);
|
|
|
936
|
|
|
937 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
938 "http upstream connect: %i", rc);
|
|
|
939
|
|
|
940 if (rc == NGX_ERROR) {
|
|
|
941 ngx_http_upstream_finalize_request(r, u,
|
|
|
942 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
943 return;
|
|
|
944 }
|
|
|
945
|
|
356
|
946 u->state->peer = u->peer.name;
|
|
|
947
|
|
92
|
948 if (rc == NGX_BUSY) {
|
|
|
949 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "no live upstreams");
|
|
326
|
950 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_NOLIVE);
|
|
|
951 return;
|
|
92
|
952 }
|
|
|
953
|
|
326
|
954 if (rc == NGX_DECLINED) {
|
|
28
|
955 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR);
|
|
|
956 return;
|
|
|
957 }
|
|
|
958
|
|
126
|
959 /* rc == NGX_OK || rc == NGX_AGAIN */
|
|
|
960
|
|
28
|
961 c = u->peer.connection;
|
|
|
962
|
|
|
963 c->data = r;
|
|
140
|
964
|
|
426
|
965 c->write->handler = ngx_http_upstream_handler;
|
|
|
966 c->read->handler = ngx_http_upstream_handler;
|
|
|
967
|
|
|
968 u->write_event_handler = ngx_http_upstream_send_request_handler;
|
|
|
969 u->read_event_handler = ngx_http_upstream_process_header;
|
|
28
|
970
|
|
326
|
971 c->sendfile &= r->connection->sendfile;
|
|
372
|
972 u->output.sendfile = c->sendfile;
|
|
28
|
973
|
|
|
974 c->pool = r->pool;
|
|
492
|
975 c->log = r->connection->log;
|
|
|
976 c->read->log = c->log;
|
|
|
977 c->write->log = c->log;
|
|
28
|
978
|
|
|
979 /* init or reinit the ngx_output_chain() and ngx_chain_writer() contexts */
|
|
|
980
|
|
|
981 u->writer.out = NULL;
|
|
|
982 u->writer.last = &u->writer.out;
|
|
|
983 u->writer.connection = c;
|
|
|
984 u->writer.limit = 0;
|
|
|
985
|
|
|
986 if (u->request_sent) {
|
|
58
|
987 if (ngx_http_upstream_reinit(r, u) != NGX_OK) {
|
|
|
988 ngx_http_upstream_finalize_request(r, u,
|
|
|
989 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
990 return;
|
|
|
991 }
|
|
28
|
992 }
|
|
|
993
|
|
276
|
994 if (r->request_body
|
|
|
995 && r->request_body->buf
|
|
|
996 && r->request_body->temp_file
|
|
|
997 && r == r->main)
|
|
|
998 {
|
|
122
|
999 /*
|
|
|
1000 * the r->request_body->buf can be reused for one request only,
|
|
|
1001 * the subrequests should allocate their own temporay bufs
|
|
|
1002 */
|
|
|
1003
|
|
|
1004 u->output.free = ngx_alloc_chain_link(r->pool);
|
|
|
1005 if (u->output.free == NULL) {
|
|
|
1006 ngx_http_upstream_finalize_request(r, u,
|
|
|
1007 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1008 return;
|
|
28
|
1009 }
|
|
122
|
1010
|
|
|
1011 u->output.free->buf = r->request_body->buf;
|
|
|
1012 u->output.free->next = NULL;
|
|
|
1013 u->output.allocated = 1;
|
|
|
1014
|
|
|
1015 r->request_body->buf->pos = r->request_body->buf->start;
|
|
|
1016 r->request_body->buf->last = r->request_body->buf->start;
|
|
|
1017 r->request_body->buf->tag = u->output.tag;
|
|
28
|
1018 }
|
|
|
1019
|
|
|
1020 u->request_sent = 0;
|
|
|
1021
|
|
|
1022 if (rc == NGX_AGAIN) {
|
|
|
1023 ngx_add_timer(c->write, u->conf->connect_timeout);
|
|
|
1024 return;
|
|
|
1025 }
|
|
|
1026
|
|
126
|
1027 #if (NGX_HTTP_SSL)
|
|
|
1028
|
|
348
|
1029 if (u->ssl && c->ssl == NULL) {
|
|
140
|
1030 ngx_http_upstream_ssl_init_connection(r, u, c);
|
|
126
|
1031 return;
|
|
|
1032 }
|
|
|
1033
|
|
|
1034 #endif
|
|
|
1035
|
|
28
|
1036 ngx_http_upstream_send_request(r, u);
|
|
|
1037 }
|
|
|
1038
|
|
|
1039
|
|
126
|
1040 #if (NGX_HTTP_SSL)
|
|
|
1041
|
|
|
1042 static void
|
|
140
|
1043 ngx_http_upstream_ssl_init_connection(ngx_http_request_t *r,
|
|
|
1044 ngx_http_upstream_t *u, ngx_connection_t *c)
|
|
|
1045 {
|
|
260
|
1046 ngx_int_t rc;
|
|
140
|
1047
|
|
|
1048 if (ngx_ssl_create_connection(u->conf->ssl, c,
|
|
|
1049 NGX_SSL_BUFFER|NGX_SSL_CLIENT)
|
|
454
|
1050 != NGX_OK)
|
|
140
|
1051 {
|
|
|
1052 ngx_http_upstream_finalize_request(r, u,
|
|
|
1053 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1054 return;
|
|
|
1055 }
|
|
|
1056
|
|
|
1057 c->sendfile = 0;
|
|
168
|
1058 u->output.sendfile = 0;
|
|
140
|
1059
|
|
398
|
1060 if (u->conf->ssl_session_reuse) {
|
|
|
1061 if (u->peer.set_session(&u->peer, u->peer.data) != NGX_OK) {
|
|
|
1062 ngx_http_upstream_finalize_request(r, u,
|
|
|
1063 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1064 return;
|
|
|
1065 }
|
|
140
|
1066 }
|
|
|
1067
|
|
190
|
1068 r->connection->log->action = "SSL handshaking to upstream";
|
|
|
1069
|
|
140
|
1070 rc = ngx_ssl_handshake(c);
|
|
|
1071
|
|
|
1072 if (rc == NGX_AGAIN) {
|
|
|
1073 c->ssl->handler = ngx_http_upstream_ssl_handshake;
|
|
|
1074 return;
|
|
|
1075 }
|
|
|
1076
|
|
|
1077 ngx_http_upstream_ssl_handshake(c);
|
|
|
1078 }
|
|
|
1079
|
|
|
1080
|
|
|
1081 static void
|
|
126
|
1082 ngx_http_upstream_ssl_handshake(ngx_connection_t *c)
|
|
|
1083 {
|
|
|
1084 ngx_http_request_t *r;
|
|
|
1085 ngx_http_upstream_t *u;
|
|
|
1086
|
|
|
1087 r = c->data;
|
|
|
1088 u = r->upstream;
|
|
|
1089
|
|
|
1090 if (c->ssl->handshaked) {
|
|
|
1091
|
|
398
|
1092 if (u->conf->ssl_session_reuse) {
|
|
|
1093 u->peer.save_session(&u->peer, u->peer.data);
|
|
|
1094 }
|
|
260
|
1095
|
|
426
|
1096 c->write->handler = ngx_http_upstream_handler;
|
|
|
1097 c->read->handler = ngx_http_upstream_handler;
|
|
126
|
1098
|
|
|
1099 ngx_http_upstream_send_request(r, u);
|
|
|
1100
|
|
|
1101 return;
|
|
|
1102 }
|
|
|
1103
|
|
|
1104 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR);
|
|
|
1105
|
|
|
1106 }
|
|
|
1107
|
|
|
1108 #endif
|
|
|
1109
|
|
|
1110
|
|
58
|
1111 static ngx_int_t
|
|
36
|
1112 ngx_http_upstream_reinit(ngx_http_request_t *r, ngx_http_upstream_t *u)
|
|
28
|
1113 {
|
|
|
1114 ngx_chain_t *cl;
|
|
|
1115
|
|
58
|
1116 if (u->reinit_request(r) != NGX_OK) {
|
|
|
1117 return NGX_ERROR;
|
|
|
1118 }
|
|
|
1119
|
|
356
|
1120 ngx_memzero(&u->headers_in, sizeof(ngx_http_upstream_headers_in_t));
|
|
|
1121
|
|
|
1122 if (ngx_list_init(&u->headers_in.headers, r->pool, 8,
|
|
140
|
1123 sizeof(ngx_table_elt_t))
|
|
|
1124 != NGX_OK)
|
|
58
|
1125 {
|
|
|
1126 return NGX_ERROR;
|
|
28
|
1127 }
|
|
|
1128
|
|
|
1129 /* reinit the request chain */
|
|
126
|
1130
|
|
58
|
1131 for (cl = u->request_bufs; cl; cl = cl->next) {
|
|
28
|
1132 cl->buf->pos = cl->buf->start;
|
|
|
1133 cl->buf->file_pos = 0;
|
|
|
1134 }
|
|
|
1135
|
|
58
|
1136 /* reinit the subrequest's ngx_output_chain() context */
|
|
|
1137
|
|
122
|
1138 if (r->request_body && r->request_body->temp_file
|
|
146
|
1139 && r != r->main && u->output.buf)
|
|
122
|
1140 {
|
|
|
1141 u->output.free = ngx_alloc_chain_link(r->pool);
|
|
|
1142 if (u->output.free == NULL) {
|
|
|
1143 return NGX_ERROR;
|
|
58
|
1144 }
|
|
122
|
1145
|
|
|
1146 u->output.free->buf = u->output.buf;
|
|
|
1147 u->output.free->next = NULL;
|
|
|
1148
|
|
|
1149 u->output.buf->pos = u->output.buf->start;
|
|
|
1150 u->output.buf->last = u->output.buf->start;
|
|
58
|
1151 }
|
|
28
|
1152
|
|
|
1153 u->output.buf = NULL;
|
|
|
1154 u->output.in = NULL;
|
|
|
1155 u->output.busy = NULL;
|
|
126
|
1156
|
|
130
|
1157 /* reinit u->buffer */
|
|
126
|
1158
|
|
464
|
1159 u->buffer.pos = u->buffer.start;
|
|
|
1160
|
|
|
1161 #if (NGX_HTTP_CACHE)
|
|
|
1162
|
|
|
1163 if (r->cache) {
|
|
|
1164 u->buffer.pos += r->cache->header_start;
|
|
28
|
1165 }
|
|
58
|
1166
|
|
28
|
1167 #endif
|
|
|
1168
|
|
464
|
1169 u->buffer.last = u->buffer.pos;
|
|
|
1170
|
|
58
|
1171 return NGX_OK;
|
|
28
|
1172 }
|
|
|
1173
|
|
|
1174
|
|
36
|
1175 static void
|
|
|
1176 ngx_http_upstream_send_request(ngx_http_request_t *r, ngx_http_upstream_t *u)
|
|
28
|
1177 {
|
|
294
|
1178 ngx_int_t rc;
|
|
32
|
1179 ngx_connection_t *c;
|
|
126
|
1180
|
|
28
|
1181 c = u->peer.connection;
|
|
|
1182
|
|
|
1183 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1184 "http upstream send request");
|
|
|
1185
|
|
294
|
1186 if (!u->request_sent && ngx_http_upstream_test_connect(c) != NGX_OK) {
|
|
296
|
1187 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR);
|
|
294
|
1188 return;
|
|
28
|
1189 }
|
|
|
1190
|
|
32
|
1191 c->log->action = "sending request to upstream";
|
|
28
|
1192
|
|
58
|
1193 rc = ngx_output_chain(&u->output, u->request_sent ? NULL : u->request_bufs);
|
|
28
|
1194
|
|
|
1195 u->request_sent = 1;
|
|
|
1196
|
|
|
1197 if (rc == NGX_ERROR) {
|
|
|
1198 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR);
|
|
|
1199 return;
|
|
|
1200 }
|
|
|
1201
|
|
|
1202 if (c->write->timer_set) {
|
|
|
1203 ngx_del_timer(c->write);
|
|
|
1204 }
|
|
|
1205
|
|
|
1206 if (rc == NGX_AGAIN) {
|
|
|
1207 ngx_add_timer(c->write, u->conf->send_timeout);
|
|
|
1208
|
|
430
|
1209 if (ngx_handle_write_event(c->write, u->conf->send_lowat) != NGX_OK) {
|
|
28
|
1210 ngx_http_upstream_finalize_request(r, u,
|
|
|
1211 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1212 return;
|
|
|
1213 }
|
|
|
1214
|
|
|
1215 return;
|
|
|
1216 }
|
|
|
1217
|
|
|
1218 /* rc == NGX_OK */
|
|
|
1219
|
|
|
1220 if (c->tcp_nopush == NGX_TCP_NOPUSH_SET) {
|
|
|
1221 if (ngx_tcp_push(c->fd) == NGX_ERROR) {
|
|
|
1222 ngx_log_error(NGX_LOG_CRIT, c->log, ngx_socket_errno,
|
|
|
1223 ngx_tcp_push_n " failed");
|
|
|
1224 ngx_http_upstream_finalize_request(r, u,
|
|
|
1225 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
126
|
1226 return;
|
|
28
|
1227 }
|
|
|
1228
|
|
|
1229 c->tcp_nopush = NGX_TCP_NOPUSH_UNSET;
|
|
|
1230 }
|
|
126
|
1231
|
|
28
|
1232 ngx_add_timer(c->read, u->conf->read_timeout);
|
|
|
1233
|
|
|
1234 #if 1
|
|
|
1235 if (c->read->ready) {
|
|
126
|
1236
|
|
28
|
1237 /* post aio operation */
|
|
|
1238
|
|
|
1239 /*
|
|
|
1240 * TODO comment
|
|
|
1241 * although we can post aio operation just in the end
|
|
|
1242 * of ngx_http_upstream_connect() CHECK IT !!!
|
|
|
1243 * it's better to do here because we postpone header buffer allocation
|
|
|
1244 */
|
|
|
1245
|
|
430
|
1246 ngx_http_upstream_process_header(r, u);
|
|
28
|
1247 return;
|
|
|
1248 }
|
|
|
1249 #endif
|
|
|
1250
|
|
426
|
1251 u->write_event_handler = ngx_http_upstream_dummy_handler;
|
|
28
|
1252
|
|
430
|
1253 if (ngx_handle_write_event(c->write, 0) != NGX_OK) {
|
|
28
|
1254 ngx_http_upstream_finalize_request(r, u,
|
|
|
1255 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1256 return;
|
|
|
1257 }
|
|
|
1258 }
|
|
|
1259
|
|
|
1260
|
|
36
|
1261 static void
|
|
430
|
1262 ngx_http_upstream_send_request_handler(ngx_http_request_t *r,
|
|
|
1263 ngx_http_upstream_t *u)
|
|
28
|
1264 {
|
|
430
|
1265 ngx_connection_t *c;
|
|
|
1266
|
|
|
1267 c = u->peer.connection;
|
|
|
1268
|
|
|
1269 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
28
|
1270 "http upstream send request handler");
|
|
|
1271
|
|
430
|
1272 if (c->write->timedout) {
|
|
28
|
1273 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_TIMEOUT);
|
|
|
1274 return;
|
|
|
1275 }
|
|
|
1276
|
|
140
|
1277 #if (NGX_HTTP_SSL)
|
|
|
1278
|
|
348
|
1279 if (u->ssl && c->ssl == NULL) {
|
|
140
|
1280 ngx_http_upstream_ssl_init_connection(r, u, c);
|
|
|
1281 return;
|
|
|
1282 }
|
|
|
1283
|
|
|
1284 #endif
|
|
|
1285
|
|
200
|
1286 if (u->header_sent) {
|
|
426
|
1287 u->write_event_handler = ngx_http_upstream_dummy_handler;
|
|
200
|
1288
|
|
430
|
1289 (void) ngx_handle_write_event(c->write, 0);
|
|
200
|
1290
|
|
|
1291 return;
|
|
|
1292 }
|
|
|
1293
|
|
28
|
1294 ngx_http_upstream_send_request(r, u);
|
|
|
1295 }
|
|
|
1296
|
|
|
1297
|
|
36
|
1298 static void
|
|
430
|
1299 ngx_http_upstream_process_header(ngx_http_request_t *r, ngx_http_upstream_t *u)
|
|
28
|
1300 {
|
|
464
|
1301 ssize_t n;
|
|
|
1302 ngx_int_t rc;
|
|
|
1303 ngx_connection_t *c;
|
|
28
|
1304
|
|
430
|
1305 c = u->peer.connection;
|
|
|
1306
|
|
|
1307 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
32
|
1308 "http upstream process header");
|
|
28
|
1309
|
|
32
|
1310 c->log->action = "reading response header from upstream";
|
|
28
|
1311
|
|
430
|
1312 if (c->read->timedout) {
|
|
28
|
1313 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_TIMEOUT);
|
|
|
1314 return;
|
|
|
1315 }
|
|
126
|
1316
|
|
294
|
1317 if (!u->request_sent && ngx_http_upstream_test_connect(c) != NGX_OK) {
|
|
296
|
1318 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR);
|
|
294
|
1319 return;
|
|
|
1320 }
|
|
|
1321
|
|
130
|
1322 if (u->buffer.start == NULL) {
|
|
|
1323 u->buffer.start = ngx_palloc(r->pool, u->conf->buffer_size);
|
|
|
1324 if (u->buffer.start == NULL) {
|
|
28
|
1325 ngx_http_upstream_finalize_request(r, u,
|
|
|
1326 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1327 return;
|
|
|
1328 }
|
|
|
1329
|
|
130
|
1330 u->buffer.pos = u->buffer.start;
|
|
|
1331 u->buffer.last = u->buffer.start;
|
|
|
1332 u->buffer.end = u->buffer.start + u->conf->buffer_size;
|
|
|
1333 u->buffer.temporary = 1;
|
|
|
1334
|
|
|
1335 u->buffer.tag = u->output.tag;
|
|
28
|
1336
|
|
356
|
1337 if (ngx_list_init(&u->headers_in.headers, r->pool, 8,
|
|
130
|
1338 sizeof(ngx_table_elt_t))
|
|
|
1339 != NGX_OK)
|
|
58
|
1340 {
|
|
|
1341 ngx_http_upstream_finalize_request(r, u,
|
|
|
1342 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1343 return;
|
|
|
1344 }
|
|
|
1345
|
|
464
|
1346 #if (NGX_HTTP_CACHE)
|
|
|
1347
|
|
|
1348 if (r->cache) {
|
|
|
1349 u->buffer.pos += r->cache->header_start;
|
|
130
|
1350 u->buffer.last = u->buffer.pos;
|
|
28
|
1351 }
|
|
|
1352 #endif
|
|
|
1353 }
|
|
|
1354
|
|
424
|
1355 for ( ;; ) {
|
|
|
1356
|
|
|
1357 n = c->recv(c, u->buffer.last, u->buffer.end - u->buffer.last);
|
|
|
1358
|
|
|
1359 if (n == NGX_AGAIN) {
|
|
28
|
1360 #if 0
|
|
424
|
1361 ngx_add_timer(rev, u->read_timeout);
|
|
28
|
1362 #endif
|
|
|
1363
|
|
430
|
1364 if (ngx_handle_read_event(c->read, 0) != NGX_OK) {
|
|
424
|
1365 ngx_http_upstream_finalize_request(r, u,
|
|
28
|
1366 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
424
|
1367 return;
|
|
|
1368 }
|
|
|
1369
|
|
|
1370 return;
|
|
|
1371 }
|
|
|
1372
|
|
|
1373 if (n == 0) {
|
|
430
|
1374 ngx_log_error(NGX_LOG_ERR, c->log, 0,
|
|
424
|
1375 "upstream prematurely closed connection");
|
|
|
1376 }
|
|
|
1377
|
|
|
1378 if (n == NGX_ERROR || n == 0) {
|
|
|
1379 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR);
|
|
28
|
1380 return;
|
|
|
1381 }
|
|
|
1382
|
|
424
|
1383 u->buffer.last += n;
|
|
28
|
1384
|
|
|
1385 #if 0
|
|
424
|
1386 u->valid_header_in = 0;
|
|
|
1387
|
|
|
1388 u->peer.cached = 0;
|
|
28
|
1389 #endif
|
|
|
1390
|
|
424
|
1391 rc = u->process_header(r);
|
|
|
1392
|
|
|
1393 if (rc == NGX_AGAIN) {
|
|
|
1394
|
|
|
1395 if (u->buffer.pos == u->buffer.end) {
|
|
430
|
1396 ngx_log_error(NGX_LOG_ERR, c->log, 0,
|
|
424
|
1397 "upstream sent too big header");
|
|
|
1398
|
|
|
1399 ngx_http_upstream_next(r, u,
|
|
|
1400 NGX_HTTP_UPSTREAM_FT_INVALID_HEADER);
|
|
|
1401 return;
|
|
|
1402 }
|
|
|
1403
|
|
|
1404 continue;
|
|
28
|
1405 }
|
|
|
1406
|
|
424
|
1407 break;
|
|
28
|
1408 }
|
|
|
1409
|
|
|
1410 if (rc == NGX_HTTP_UPSTREAM_INVALID_HEADER) {
|
|
|
1411 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_INVALID_HEADER);
|
|
|
1412 return;
|
|
|
1413 }
|
|
|
1414
|
|
356
|
1415 if (rc == NGX_ERROR) {
|
|
28
|
1416 ngx_http_upstream_finalize_request(r, u,
|
|
|
1417 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1418 return;
|
|
|
1419 }
|
|
|
1420
|
|
|
1421 /* rc == NGX_OK */
|
|
|
1422
|
|
412
|
1423 if (u->headers_in.status_n >= NGX_HTTP_BAD_REQUEST) {
|
|
|
1424
|
|
|
1425 if (r->subrequest_in_memory) {
|
|
|
1426 u->buffer.last = u->buffer.pos;
|
|
58
|
1427 }
|
|
|
1428
|
|
412
|
1429 if (ngx_http_upstream_test_next(r, u) == NGX_OK) {
|
|
146
|
1430 return;
|
|
|
1431 }
|
|
|
1432
|
|
412
|
1433 if (ngx_http_upstream_intercept_errors(r, u) == NGX_OK) {
|
|
146
|
1434 return;
|
|
|
1435 }
|
|
58
|
1436 }
|
|
|
1437
|
|
464
|
1438 if (ngx_http_upstream_process_headers(r, u) != NGX_OK) {
|
|
64
|
1439 return;
|
|
|
1440 }
|
|
|
1441
|
|
248
|
1442 if (!r->subrequest_in_memory) {
|
|
|
1443 ngx_http_upstream_send_response(r, u);
|
|
|
1444 return;
|
|
|
1445 }
|
|
|
1446
|
|
|
1447 /* subrequest content in memory */
|
|
|
1448
|
|
|
1449 if (u->input_filter == NULL) {
|
|
|
1450 u->input_filter_init = ngx_http_upstream_non_buffered_filter_init;
|
|
|
1451 u->input_filter = ngx_http_upstream_non_buffered_filter;
|
|
|
1452 u->input_filter_ctx = r;
|
|
|
1453 }
|
|
|
1454
|
|
|
1455 if (u->input_filter_init(u->input_filter_ctx) == NGX_ERROR) {
|
|
|
1456 ngx_http_upstream_finalize_request(r, u,
|
|
|
1457 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1458 return;
|
|
|
1459 }
|
|
|
1460
|
|
420
|
1461 n = u->buffer.last - u->buffer.pos;
|
|
|
1462
|
|
|
1463 if (n) {
|
|
|
1464 u->buffer.last -= n;
|
|
|
1465
|
|
430
|
1466 u->state->response_length += n;
|
|
|
1467
|
|
420
|
1468 if (u->input_filter(u->input_filter_ctx, n) == NGX_ERROR) {
|
|
248
|
1469 ngx_http_upstream_finalize_request(r, u, NGX_ERROR);
|
|
|
1470 return;
|
|
|
1471 }
|
|
|
1472
|
|
420
|
1473 if (u->length == 0) {
|
|
|
1474 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
1475 return;
|
|
|
1476 }
|
|
248
|
1477 }
|
|
|
1478
|
|
426
|
1479 u->read_event_handler = ngx_http_upstream_process_body_in_memory;
|
|
248
|
1480
|
|
430
|
1481 ngx_http_upstream_process_body_in_memory(r, u);
|
|
248
|
1482 }
|
|
|
1483
|
|
|
1484
|
|
294
|
1485 static ngx_int_t
|
|
412
|
1486 ngx_http_upstream_test_next(ngx_http_request_t *r, ngx_http_upstream_t *u)
|
|
|
1487 {
|
|
|
1488 ngx_uint_t status;
|
|
|
1489 ngx_http_upstream_next_t *un;
|
|
|
1490
|
|
|
1491 status = u->headers_in.status_n;
|
|
|
1492
|
|
|
1493 for (un = ngx_http_upstream_next_errors; un->status; un++) {
|
|
|
1494
|
|
|
1495 if (status != un->status) {
|
|
|
1496 continue;
|
|
|
1497 }
|
|
|
1498
|
|
|
1499 if (u->peer.tries > 1 && (u->conf->next_upstream & un->mask)) {
|
|
|
1500 ngx_http_upstream_next(r, u, un->mask);
|
|
|
1501 return NGX_OK;
|
|
|
1502 }
|
|
|
1503
|
|
|
1504 #if (NGX_HTTP_CACHE)
|
|
|
1505
|
|
486
|
1506 if (u->stale_cache && (u->conf->cache_use_stale & un->mask)) {
|
|
488
|
1507 ngx_int_t rc;
|
|
486
|
1508
|
|
|
1509 rc = u->reinit_request(r);
|
|
|
1510
|
|
|
1511 if (rc == NGX_OK) {
|
|
|
1512 rc = ngx_http_upstream_cache_send(r, u);
|
|
|
1513 }
|
|
|
1514
|
|
|
1515 ngx_http_upstream_finalize_request(r, u, rc);
|
|
412
|
1516 return NGX_OK;
|
|
|
1517 }
|
|
|
1518
|
|
|
1519 #endif
|
|
|
1520 }
|
|
|
1521
|
|
|
1522 return NGX_DECLINED;
|
|
|
1523 }
|
|
|
1524
|
|
|
1525
|
|
|
1526 static ngx_int_t
|
|
|
1527 ngx_http_upstream_intercept_errors(ngx_http_request_t *r,
|
|
|
1528 ngx_http_upstream_t *u)
|
|
|
1529 {
|
|
|
1530 ngx_int_t status;
|
|
|
1531 ngx_uint_t i;
|
|
|
1532 ngx_table_elt_t *h;
|
|
|
1533 ngx_http_err_page_t *err_page;
|
|
|
1534 ngx_http_core_loc_conf_t *clcf;
|
|
|
1535
|
|
438
|
1536 status = u->headers_in.status_n;
|
|
|
1537
|
|
|
1538 if (status == NGX_HTTP_NOT_FOUND && u->conf->intercept_404) {
|
|
|
1539 ngx_http_upstream_finalize_request(r, u, NGX_HTTP_NOT_FOUND);
|
|
|
1540 return NGX_OK;
|
|
|
1541 }
|
|
|
1542
|
|
412
|
1543 if (!u->conf->intercept_errors) {
|
|
|
1544 return NGX_DECLINED;
|
|
|
1545 }
|
|
|
1546
|
|
|
1547 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1548
|
|
|
1549 if (clcf->error_pages == NULL) {
|
|
|
1550 return NGX_DECLINED;
|
|
|
1551 }
|
|
|
1552
|
|
|
1553 err_page = clcf->error_pages->elts;
|
|
|
1554 for (i = 0; i < clcf->error_pages->nelts; i++) {
|
|
|
1555
|
|
|
1556 if (err_page[i].status == status) {
|
|
|
1557
|
|
|
1558 if (status == NGX_HTTP_UNAUTHORIZED) {
|
|
|
1559
|
|
|
1560 h = ngx_list_push(&r->headers_out.headers);
|
|
|
1561
|
|
|
1562 if (h == NULL) {
|
|
|
1563 ngx_http_upstream_finalize_request(r, u,
|
|
|
1564 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1565 return NGX_OK;
|
|
|
1566 }
|
|
|
1567
|
|
|
1568 *h = *u->headers_in.www_authenticate;
|
|
|
1569
|
|
|
1570 r->headers_out.www_authenticate = h;
|
|
|
1571 }
|
|
|
1572
|
|
|
1573 ngx_http_upstream_finalize_request(r, u, status);
|
|
|
1574
|
|
|
1575 return NGX_OK;
|
|
|
1576 }
|
|
|
1577 }
|
|
|
1578
|
|
|
1579 return NGX_DECLINED;
|
|
|
1580 }
|
|
|
1581
|
|
|
1582
|
|
|
1583 static ngx_int_t
|
|
294
|
1584 ngx_http_upstream_test_connect(ngx_connection_t *c)
|
|
|
1585 {
|
|
|
1586 int err;
|
|
|
1587 socklen_t len;
|
|
|
1588
|
|
|
1589 #if (NGX_HAVE_KQUEUE)
|
|
|
1590
|
|
|
1591 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
296
|
1592 if (c->write->pending_eof) {
|
|
336
|
1593 c->log->action = "connecting to upstream";
|
|
296
|
1594 (void) ngx_connection_error(c, c->write->kq_errno,
|
|
|
1595 "kevent() reported that connect() failed");
|
|
|
1596 return NGX_ERROR;
|
|
|
1597 }
|
|
294
|
1598
|
|
|
1599 } else
|
|
|
1600 #endif
|
|
|
1601 {
|
|
296
|
1602 err = 0;
|
|
|
1603 len = sizeof(int);
|
|
|
1604
|
|
|
1605 /*
|
|
|
1606 * BSDs and Linux return 0 and set a pending error in err
|
|
|
1607 * Solaris returns -1 and sets errno
|
|
|
1608 */
|
|
|
1609
|
|
|
1610 if (getsockopt(c->fd, SOL_SOCKET, SO_ERROR, (void *) &err, &len)
|
|
|
1611 == -1)
|
|
|
1612 {
|
|
|
1613 err = ngx_errno;
|
|
|
1614 }
|
|
|
1615
|
|
|
1616 if (err) {
|
|
336
|
1617 c->log->action = "connecting to upstream";
|
|
296
|
1618 (void) ngx_connection_error(c, err, "connect() failed");
|
|
|
1619 return NGX_ERROR;
|
|
|
1620 }
|
|
294
|
1621 }
|
|
|
1622
|
|
|
1623 return NGX_OK;
|
|
|
1624 }
|
|
|
1625
|
|
|
1626
|
|
464
|
1627 static ngx_int_t
|
|
|
1628 ngx_http_upstream_process_headers(ngx_http_request_t *r, ngx_http_upstream_t *u)
|
|
|
1629 {
|
|
|
1630 ngx_str_t *uri, args;
|
|
|
1631 ngx_uint_t i, flags;
|
|
|
1632 ngx_list_part_t *part;
|
|
|
1633 ngx_table_elt_t *h;
|
|
|
1634 ngx_http_upstream_header_t *hh;
|
|
|
1635 ngx_http_upstream_main_conf_t *umcf;
|
|
|
1636
|
|
|
1637 umcf = ngx_http_get_module_main_conf(r, ngx_http_upstream_module);
|
|
|
1638
|
|
484
|
1639 if (u->headers_in.x_accel_redirect
|
|
|
1640 && !(u->conf->ignore_headers & NGX_HTTP_UPSTREAM_IGN_XA_REDIRECT))
|
|
|
1641 {
|
|
464
|
1642 ngx_http_upstream_finalize_request(r, u, NGX_DECLINED);
|
|
|
1643
|
|
|
1644 part = &u->headers_in.headers.part;
|
|
|
1645 h = part->elts;
|
|
|
1646
|
|
|
1647 for (i = 0; /* void */; i++) {
|
|
|
1648
|
|
|
1649 if (i >= part->nelts) {
|
|
|
1650 if (part->next == NULL) {
|
|
|
1651 break;
|
|
|
1652 }
|
|
|
1653
|
|
|
1654 part = part->next;
|
|
|
1655 h = part->elts;
|
|
|
1656 i = 0;
|
|
|
1657 }
|
|
|
1658
|
|
|
1659 hh = ngx_hash_find(&umcf->headers_in_hash, h[i].hash,
|
|
|
1660 h[i].lowcase_key, h[i].key.len);
|
|
|
1661
|
|
|
1662 if (hh && hh->redirect) {
|
|
|
1663 if (hh->copy_handler(r, &h[i], hh->conf) != NGX_OK) {
|
|
|
1664 ngx_http_finalize_request(r,
|
|
|
1665 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1666 return NGX_DONE;
|
|
|
1667 }
|
|
|
1668 }
|
|
|
1669 }
|
|
|
1670
|
|
|
1671 uri = &u->headers_in.x_accel_redirect->value;
|
|
|
1672 args.len = 0;
|
|
|
1673 args.data = NULL;
|
|
|
1674 flags = 0;
|
|
|
1675
|
|
|
1676 if (ngx_http_parse_unsafe_uri(r, uri, &args, &flags) != NGX_OK) {
|
|
|
1677 ngx_http_finalize_request(r, NGX_HTTP_NOT_FOUND);
|
|
|
1678 return NGX_DONE;
|
|
|
1679 }
|
|
|
1680
|
|
|
1681 if (flags & NGX_HTTP_ZERO_IN_URI) {
|
|
|
1682 r->zero_in_uri = 1;
|
|
|
1683 }
|
|
|
1684
|
|
|
1685 if (r->method != NGX_HTTP_HEAD) {
|
|
|
1686 r->method = NGX_HTTP_GET;
|
|
|
1687 }
|
|
|
1688
|
|
|
1689 r->valid_unparsed_uri = 0;
|
|
|
1690
|
|
|
1691 ngx_http_internal_redirect(r, uri, &args);
|
|
|
1692 return NGX_DONE;
|
|
|
1693 }
|
|
|
1694
|
|
|
1695 part = &u->headers_in.headers.part;
|
|
|
1696 h = part->elts;
|
|
|
1697
|
|
|
1698 for (i = 0; /* void */; i++) {
|
|
|
1699
|
|
|
1700 if (i >= part->nelts) {
|
|
|
1701 if (part->next == NULL) {
|
|
|
1702 break;
|
|
|
1703 }
|
|
|
1704
|
|
|
1705 part = part->next;
|
|
|
1706 h = part->elts;
|
|
|
1707 i = 0;
|
|
|
1708 }
|
|
|
1709
|
|
|
1710 if (ngx_hash_find(&u->conf->hide_headers_hash, h[i].hash,
|
|
|
1711 h[i].lowcase_key, h[i].key.len))
|
|
|
1712 {
|
|
|
1713 continue;
|
|
|
1714 }
|
|
|
1715
|
|
|
1716 hh = ngx_hash_find(&umcf->headers_in_hash, h[i].hash,
|
|
|
1717 h[i].lowcase_key, h[i].key.len);
|
|
|
1718
|
|
|
1719 if (hh) {
|
|
|
1720 if (hh->copy_handler(r, &h[i], hh->conf) != NGX_OK) {
|
|
|
1721 ngx_http_upstream_finalize_request(r, u,
|
|
|
1722 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1723 return NGX_DONE;
|
|
|
1724 }
|
|
|
1725
|
|
|
1726 continue;
|
|
|
1727 }
|
|
|
1728
|
|
|
1729 if (ngx_http_upstream_copy_header_line(r, &h[i], 0) != NGX_OK) {
|
|
|
1730 ngx_http_upstream_finalize_request(r, u,
|
|
|
1731 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1732 return NGX_DONE;
|
|
|
1733 }
|
|
|
1734 }
|
|
|
1735
|
|
|
1736 if (r->headers_out.server && r->headers_out.server->value.data == NULL) {
|
|
|
1737 r->headers_out.server->hash = 0;
|
|
|
1738 }
|
|
|
1739
|
|
|
1740 if (r->headers_out.date && r->headers_out.date->value.data == NULL) {
|
|
|
1741 r->headers_out.date->hash = 0;
|
|
|
1742 }
|
|
|
1743
|
|
|
1744 r->headers_out.status = u->headers_in.status_n;
|
|
|
1745 r->headers_out.status_line = u->headers_in.status_line;
|
|
|
1746
|
|
|
1747 u->headers_in.content_length_n = r->headers_out.content_length_n;
|
|
|
1748
|
|
|
1749 if (r->headers_out.content_length_n != -1) {
|
|
|
1750 u->length = (size_t) r->headers_out.content_length_n;
|
|
|
1751
|
|
|
1752 } else {
|
|
|
1753 u->length = NGX_MAX_SIZE_T_VALUE;
|
|
|
1754 }
|
|
|
1755
|
|
|
1756 return NGX_OK;
|
|
|
1757 }
|
|
|
1758
|
|
|
1759
|
|
248
|
1760 static void
|
|
430
|
1761 ngx_http_upstream_process_body_in_memory(ngx_http_request_t *r,
|
|
|
1762 ngx_http_upstream_t *u)
|
|
248
|
1763 {
|
|
430
|
1764 size_t size;
|
|
|
1765 ssize_t n;
|
|
|
1766 ngx_buf_t *b;
|
|
|
1767 ngx_event_t *rev;
|
|
|
1768 ngx_connection_t *c;
|
|
|
1769
|
|
|
1770 c = u->peer.connection;
|
|
|
1771 rev = c->read;
|
|
248
|
1772
|
|
|
1773 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1774 "http upstream process body on memory");
|
|
|
1775
|
|
|
1776 if (rev->timedout) {
|
|
|
1777 ngx_connection_error(c, NGX_ETIMEDOUT, "upstream timed out");
|
|
|
1778 ngx_http_upstream_finalize_request(r, u, NGX_ETIMEDOUT);
|
|
|
1779 return;
|
|
|
1780 }
|
|
|
1781
|
|
|
1782 b = &u->buffer;
|
|
|
1783
|
|
|
1784 for ( ;; ) {
|
|
|
1785
|
|
|
1786 size = b->end - b->last;
|
|
|
1787
|
|
|
1788 if (size == 0) {
|
|
|
1789 ngx_log_error(NGX_LOG_ALERT, c->log, 0,
|
|
|
1790 "upstream buffer is too small to read repsonse");
|
|
|
1791 ngx_http_upstream_finalize_request(r, u, NGX_ERROR);
|
|
|
1792 return;
|
|
|
1793 }
|
|
|
1794
|
|
|
1795 n = c->recv(c, b->last, size);
|
|
|
1796
|
|
|
1797 if (n == NGX_AGAIN) {
|
|
|
1798 break;
|
|
|
1799 }
|
|
|
1800
|
|
|
1801 if (n == 0 || n == NGX_ERROR) {
|
|
|
1802 ngx_http_upstream_finalize_request(r, u, n);
|
|
|
1803 return;
|
|
|
1804 }
|
|
|
1805
|
|
430
|
1806 u->state->response_length += n;
|
|
|
1807
|
|
248
|
1808 if (u->input_filter(u->input_filter_ctx, n) == NGX_ERROR) {
|
|
|
1809 ngx_http_upstream_finalize_request(r, u, NGX_ERROR);
|
|
|
1810 return;
|
|
|
1811 }
|
|
|
1812
|
|
|
1813 if (!rev->ready) {
|
|
|
1814 break;
|
|
|
1815 }
|
|
|
1816 }
|
|
|
1817
|
|
430
|
1818 if (ngx_handle_read_event(rev, 0) != NGX_OK) {
|
|
248
|
1819 ngx_http_upstream_finalize_request(r, u, NGX_ERROR);
|
|
|
1820 return;
|
|
|
1821 }
|
|
|
1822
|
|
|
1823 if (rev->active) {
|
|
|
1824 ngx_add_timer(rev, u->conf->read_timeout);
|
|
|
1825
|
|
|
1826 } else if (rev->timer_set) {
|
|
|
1827 ngx_del_timer(rev);
|
|
|
1828 }
|
|
230
|
1829 }
|
|
|
1830
|
|
|
1831
|
|
|
1832 static void
|
|
|
1833 ngx_http_upstream_send_response(ngx_http_request_t *r, ngx_http_upstream_t *u)
|
|
|
1834 {
|
|
|
1835 int tcp_nodelay;
|
|
430
|
1836 ssize_t n;
|
|
230
|
1837 ngx_int_t rc;
|
|
|
1838 ngx_event_pipe_t *p;
|
|
|
1839 ngx_connection_t *c;
|
|
|
1840 ngx_http_core_loc_conf_t *clcf;
|
|
|
1841
|
|
58
|
1842 rc = ngx_http_send_header(r);
|
|
28
|
1843
|
|
480
|
1844 if (rc == NGX_ERROR || rc > NGX_OK || r->post_action) {
|
|
34
|
1845 ngx_http_upstream_finalize_request(r, u, rc);
|
|
28
|
1846 return;
|
|
|
1847 }
|
|
|
1848
|
|
480
|
1849 c = r->connection;
|
|
|
1850
|
|
|
1851 if (r->header_only) {
|
|
|
1852
|
|
|
1853 if (u->cacheable || u->store) {
|
|
|
1854
|
|
|
1855 if (ngx_shutdown_socket(c->fd, NGX_WRITE_SHUTDOWN) == -1) {
|
|
|
1856 ngx_connection_error(c, ngx_socket_errno,
|
|
|
1857 ngx_shutdown_socket_n " failed");
|
|
|
1858 }
|
|
|
1859
|
|
|
1860 r->read_event_handler = ngx_http_request_empty_handler;
|
|
|
1861 r->write_event_handler = ngx_http_request_empty_handler;
|
|
|
1862 c->error = 1;
|
|
|
1863
|
|
|
1864 } else {
|
|
|
1865 ngx_http_upstream_finalize_request(r, u, rc);
|
|
|
1866 return;
|
|
|
1867 }
|
|
|
1868 }
|
|
|
1869
|
|
28
|
1870 u->header_sent = 1;
|
|
|
1871
|
|
122
|
1872 if (r->request_body && r->request_body->temp_file) {
|
|
464
|
1873 ngx_pool_run_cleanup_file(r->pool, r->request_body->temp_file->file.fd);
|
|
|
1874 r->request_body->temp_file->file.fd = NGX_INVALID_FILE;
|
|
112
|
1875 }
|
|
|
1876
|
|
130
|
1877 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1878
|
|
198
|
1879 if (!u->buffering) {
|
|
130
|
1880
|
|
|
1881 if (u->input_filter == NULL) {
|
|
|
1882 u->input_filter_init = ngx_http_upstream_non_buffered_filter_init;
|
|
|
1883 u->input_filter = ngx_http_upstream_non_buffered_filter;
|
|
|
1884 u->input_filter_ctx = r;
|
|
|
1885 }
|
|
|
1886
|
|
428
|
1887 u->read_event_handler = ngx_http_upstream_process_non_buffered_upstream;
|
|
130
|
1888 r->write_event_handler =
|
|
|
1889 ngx_http_upstream_process_non_buffered_downstream;
|
|
|
1890
|
|
|
1891 r->limit_rate = 0;
|
|
|
1892
|
|
|
1893 if (u->input_filter_init(u->input_filter_ctx) == NGX_ERROR) {
|
|
|
1894 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
1895 return;
|
|
|
1896 }
|
|
|
1897
|
|
132
|
1898 if (clcf->tcp_nodelay && c->tcp_nodelay == NGX_TCP_NODELAY_UNSET) {
|
|
|
1899 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "tcp_nodelay");
|
|
|
1900
|
|
|
1901 tcp_nodelay = 1;
|
|
|
1902
|
|
|
1903 if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY,
|
|
|
1904 (const void *) &tcp_nodelay, sizeof(int)) == -1)
|
|
|
1905 {
|
|
|
1906 ngx_connection_error(c, ngx_socket_errno,
|
|
|
1907 "setsockopt(TCP_NODELAY) failed");
|
|
|
1908 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
1909 return;
|
|
|
1910 }
|
|
|
1911
|
|
|
1912 c->tcp_nodelay = NGX_TCP_NODELAY_SET;
|
|
|
1913 }
|
|
|
1914
|
|
430
|
1915 n = u->buffer.last - u->buffer.pos;
|
|
|
1916
|
|
|
1917 if (n) {
|
|
130
|
1918 u->buffer.last = u->buffer.pos;
|
|
|
1919
|
|
430
|
1920 u->state->response_length += n;
|
|
|
1921
|
|
|
1922 if (u->input_filter(u->input_filter_ctx, n) == NGX_ERROR) {
|
|
130
|
1923 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
1924 return;
|
|
|
1925 }
|
|
|
1926
|
|
428
|
1927 ngx_http_upstream_process_non_buffered_downstream(r);
|
|
130
|
1928
|
|
|
1929 } else {
|
|
|
1930 u->buffer.pos = u->buffer.start;
|
|
|
1931 u->buffer.last = u->buffer.start;
|
|
|
1932
|
|
|
1933 if (ngx_http_send_special(r, NGX_HTTP_FLUSH) == NGX_ERROR) {
|
|
|
1934 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
1935 return;
|
|
|
1936 }
|
|
336
|
1937
|
|
|
1938 if (u->peer.connection->read->ready) {
|
|
430
|
1939 ngx_http_upstream_process_non_buffered_upstream(r, u);
|
|
336
|
1940 }
|
|
130
|
1941 }
|
|
|
1942
|
|
|
1943 return;
|
|
|
1944 }
|
|
|
1945
|
|
28
|
1946 /* TODO: preallocate event_pipe bufs, look "Content-Length" */
|
|
|
1947
|
|
464
|
1948 #if (NGX_HTTP_CACHE)
|
|
|
1949
|
|
|
1950 if (r->cache && r->cache->file.fd != NGX_INVALID_FILE) {
|
|
|
1951 ngx_pool_run_cleanup_file(r->pool, r->cache->file.fd);
|
|
|
1952 r->cache->file.fd = NGX_INVALID_FILE;
|
|
28
|
1953 }
|
|
|
1954
|
|
340
|
1955 if (u->cacheable) {
|
|
464
|
1956 time_t now, valid;
|
|
|
1957
|
|
472
|
1958 now = ngx_time();
|
|
|
1959
|
|
|
1960 valid = r->cache->valid_sec;
|
|
|
1961
|
|
|
1962 if (valid == 0) {
|
|
|
1963 valid = ngx_http_file_cache_valid(u->conf->cache_valid,
|
|
|
1964 u->headers_in.status_n);
|
|
|
1965 if (valid) {
|
|
|
1966 r->cache->valid_sec = now + valid;
|
|
|
1967 }
|
|
|
1968 }
|
|
|
1969
|
|
464
|
1970 if (valid) {
|
|
|
1971 r->cache->last_modified = r->headers_out.last_modified_time;
|
|
|
1972 r->cache->date = now;
|
|
|
1973 r->cache->body_start = (u_short) (u->buffer.pos - u->buffer.start);
|
|
|
1974
|
|
|
1975 if (r->headers_out.content_length_n != -1) {
|
|
|
1976 r->cache->length = r->cache->body_start
|
|
|
1977 + r->headers_out.content_length_n;
|
|
|
1978 }
|
|
|
1979
|
|
|
1980 ngx_http_file_cache_set_header(r, u->buffer.start);
|
|
|
1981
|
|
|
1982 } else {
|
|
|
1983 u->cacheable = 0;
|
|
480
|
1984 r->headers_out.last_modified_time = -1;
|
|
464
|
1985 }
|
|
28
|
1986 }
|
|
|
1987
|
|
478
|
1988 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1989 "http cacheable: %d", u->cacheable);
|
|
|
1990
|
|
28
|
1991 #endif
|
|
|
1992
|
|
130
|
1993 p = u->pipe;
|
|
28
|
1994
|
|
|
1995 p->output_filter = (ngx_event_pipe_output_filter_pt) ngx_http_output_filter;
|
|
|
1996 p->output_ctx = r;
|
|
|
1997 p->tag = u->output.tag;
|
|
126
|
1998 p->bufs = u->conf->bufs;
|
|
28
|
1999 p->busy_size = u->conf->busy_buffers_size;
|
|
|
2000 p->upstream = u->peer.connection;
|
|
132
|
2001 p->downstream = c;
|
|
28
|
2002 p->pool = r->pool;
|
|
132
|
2003 p->log = c->log;
|
|
126
|
2004
|
|
340
|
2005 p->cacheable = u->cacheable || u->store;
|
|
28
|
2006
|
|
50
|
2007 p->temp_file = ngx_pcalloc(r->pool, sizeof(ngx_temp_file_t));
|
|
|
2008 if (p->temp_file == NULL) {
|
|
28
|
2009 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2010 return;
|
|
|
2011 }
|
|
|
2012
|
|
|
2013 p->temp_file->file.fd = NGX_INVALID_FILE;
|
|
132
|
2014 p->temp_file->file.log = c->log;
|
|
28
|
2015 p->temp_file->path = u->conf->temp_path;
|
|
|
2016 p->temp_file->pool = r->pool;
|
|
126
|
2017
|
|
464
|
2018 if (p->cacheable) {
|
|
28
|
2019 p->temp_file->persistent = 1;
|
|
318
|
2020
|
|
28
|
2021 } else {
|
|
216
|
2022 p->temp_file->log_level = NGX_LOG_WARN;
|
|
28
|
2023 p->temp_file->warn = "an upstream response is buffered "
|
|
|
2024 "to a temporary file";
|
|
|
2025 }
|
|
|
2026
|
|
|
2027 p->max_temp_file_size = u->conf->max_temp_file_size;
|
|
|
2028 p->temp_file_write_size = u->conf->temp_file_write_size;
|
|
|
2029
|
|
50
|
2030 p->preread_bufs = ngx_alloc_chain_link(r->pool);
|
|
|
2031 if (p->preread_bufs == NULL) {
|
|
28
|
2032 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2033 return;
|
|
|
2034 }
|
|
318
|
2035
|
|
130
|
2036 p->preread_bufs->buf = &u->buffer;
|
|
28
|
2037 p->preread_bufs->next = NULL;
|
|
130
|
2038 u->buffer.recycled = 1;
|
|
|
2039
|
|
|
2040 p->preread_size = u->buffer.last - u->buffer.pos;
|
|
28
|
2041
|
|
340
|
2042 if (u->cacheable) {
|
|
318
|
2043
|
|
28
|
2044 p->buf_to_file = ngx_calloc_buf(r->pool);
|
|
|
2045 if (p->buf_to_file == NULL) {
|
|
|
2046 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2047 return;
|
|
|
2048 }
|
|
318
|
2049
|
|
130
|
2050 p->buf_to_file->pos = u->buffer.start;
|
|
|
2051 p->buf_to_file->last = u->buffer.pos;
|
|
28
|
2052 p->buf_to_file->temporary = 1;
|
|
|
2053 }
|
|
|
2054
|
|
|
2055 if (ngx_event_flags & NGX_USE_AIO_EVENT) {
|
|
|
2056 /* the posted aio operation may currupt a shadow buffer */
|
|
|
2057 p->single_buf = 1;
|
|
|
2058 }
|
|
|
2059
|
|
|
2060 /* TODO: p->free_bufs = 0 if use ngx_create_chain_of_bufs() */
|
|
|
2061 p->free_bufs = 1;
|
|
|
2062
|
|
|
2063 /*
|
|
130
|
2064 * event_pipe would do u->buffer.last += p->preread_size
|
|
28
|
2065 * as though these bytes were read
|
|
|
2066 */
|
|
130
|
2067 u->buffer.last = u->buffer.pos;
|
|
28
|
2068
|
|
|
2069 if (u->conf->cyclic_temp_file) {
|
|
|
2070
|
|
|
2071 /*
|
|
|
2072 * we need to disable the use of sendfile() if we use cyclic temp file
|
|
|
2073 * because the writing a new data may interfere with sendfile()
|
|
|
2074 * that uses the same kernel file pages (at least on FreeBSD)
|
|
|
2075 */
|
|
|
2076
|
|
|
2077 p->cyclic_temp_file = 1;
|
|
132
|
2078 c->sendfile = 0;
|
|
28
|
2079
|
|
|
2080 } else {
|
|
|
2081 p->cyclic_temp_file = 0;
|
|
|
2082 }
|
|
|
2083
|
|
|
2084 p->read_timeout = u->conf->read_timeout;
|
|
|
2085 p->send_timeout = clcf->send_timeout;
|
|
|
2086 p->send_lowat = clcf->send_lowat;
|
|
|
2087
|
|
428
|
2088 u->read_event_handler = ngx_http_upstream_process_upstream;
|
|
58
|
2089 r->write_event_handler = ngx_http_upstream_process_downstream;
|
|
28
|
2090
|
|
430
|
2091 ngx_http_upstream_process_upstream(r, u);
|
|
28
|
2092 }
|
|
|
2093
|
|
|
2094
|
|
36
|
2095 static void
|
|
130
|
2096 ngx_http_upstream_process_non_buffered_downstream(ngx_http_request_t *r)
|
|
|
2097 {
|
|
428
|
2098 ngx_event_t *wev;
|
|
|
2099 ngx_connection_t *c;
|
|
|
2100 ngx_http_upstream_t *u;
|
|
|
2101
|
|
|
2102 c = r->connection;
|
|
|
2103 u = r->upstream;
|
|
|
2104 wev = c->write;
|
|
|
2105
|
|
|
2106 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2107 "http upstream process non buffered downstream");
|
|
|
2108
|
|
|
2109 c->log->action = "sending to client";
|
|
|
2110
|
|
|
2111 if (wev->timedout) {
|
|
|
2112 c->timedout = 1;
|
|
|
2113 ngx_connection_error(c, NGX_ETIMEDOUT, "client timed out");
|
|
|
2114 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2115 return;
|
|
|
2116 }
|
|
|
2117
|
|
|
2118 ngx_http_upstream_process_non_buffered_request(r, 1);
|
|
130
|
2119 }
|
|
|
2120
|
|
|
2121
|
|
|
2122 static void
|
|
430
|
2123 ngx_http_upstream_process_non_buffered_upstream(ngx_http_request_t *r,
|
|
|
2124 ngx_http_upstream_t *u)
|
|
428
|
2125 {
|
|
430
|
2126 ngx_connection_t *c;
|
|
|
2127
|
|
|
2128 c = u->peer.connection;
|
|
428
|
2129
|
|
|
2130 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2131 "http upstream process non buffered upstream");
|
|
|
2132
|
|
|
2133 c->log->action = "reading upstream";
|
|
|
2134
|
|
430
|
2135 if (c->read->timedout) {
|
|
428
|
2136 ngx_connection_error(c, NGX_ETIMEDOUT, "upstream timed out");
|
|
|
2137 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2138 return;
|
|
|
2139 }
|
|
|
2140
|
|
|
2141 ngx_http_upstream_process_non_buffered_request(r, 0);
|
|
|
2142 }
|
|
|
2143
|
|
|
2144
|
|
|
2145 static void
|
|
|
2146 ngx_http_upstream_process_non_buffered_request(ngx_http_request_t *r,
|
|
|
2147 ngx_uint_t do_write)
|
|
130
|
2148 {
|
|
|
2149 size_t size;
|
|
|
2150 ssize_t n;
|
|
|
2151 ngx_buf_t *b;
|
|
132
|
2152 ngx_int_t rc;
|
|
428
|
2153 ngx_connection_t *downstream, *upstream;
|
|
130
|
2154 ngx_http_upstream_t *u;
|
|
|
2155 ngx_http_core_loc_conf_t *clcf;
|
|
|
2156
|
|
244
|
2157 u = r->upstream;
|
|
260
|
2158 downstream = r->connection;
|
|
|
2159 upstream = u->peer.connection;
|
|
130
|
2160
|
|
|
2161 b = &u->buffer;
|
|
|
2162
|
|
428
|
2163 do_write = do_write || u->length == 0;
|
|
130
|
2164
|
|
|
2165 for ( ;; ) {
|
|
|
2166
|
|
|
2167 if (do_write) {
|
|
|
2168
|
|
|
2169 if (u->out_bufs || u->busy_bufs) {
|
|
132
|
2170 rc = ngx_http_output_filter(r, u->out_bufs);
|
|
|
2171
|
|
260
|
2172 if (downstream->destroyed) {
|
|
132
|
2173 return;
|
|
|
2174 }
|
|
|
2175
|
|
|
2176 if (rc == NGX_ERROR) {
|
|
130
|
2177 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2178 return;
|
|
|
2179 }
|
|
|
2180
|
|
|
2181 ngx_chain_update_chains(&u->free_bufs, &u->busy_bufs,
|
|
|
2182 &u->out_bufs, u->output.tag);
|
|
|
2183 }
|
|
|
2184
|
|
|
2185 if (u->busy_bufs == NULL) {
|
|
|
2186
|
|
|
2187 if (u->length == 0
|
|
260
|
2188 || upstream->read->eof
|
|
|
2189 || upstream->read->error)
|
|
130
|
2190 {
|
|
|
2191 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2192 return;
|
|
|
2193 }
|
|
|
2194
|
|
|
2195 b->pos = b->start;
|
|
|
2196 b->last = b->start;
|
|
|
2197 }
|
|
|
2198 }
|
|
|
2199
|
|
|
2200 size = b->end - b->last;
|
|
|
2201
|
|
|
2202 if (size > u->length) {
|
|
|
2203 size = u->length;
|
|
|
2204 }
|
|
|
2205
|
|
260
|
2206 if (size && upstream->read->ready) {
|
|
|
2207
|
|
|
2208 n = upstream->recv(upstream, b->last, size);
|
|
130
|
2209
|
|
|
2210 if (n == NGX_AGAIN) {
|
|
|
2211 break;
|
|
|
2212 }
|
|
|
2213
|
|
|
2214 if (n > 0) {
|
|
430
|
2215 u->state->response_length += n;
|
|
|
2216
|
|
130
|
2217 if (u->input_filter(u->input_filter_ctx, n) == NGX_ERROR) {
|
|
|
2218 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2219 return;
|
|
|
2220 }
|
|
|
2221 }
|
|
|
2222
|
|
|
2223 do_write = 1;
|
|
|
2224
|
|
|
2225 continue;
|
|
|
2226 }
|
|
|
2227
|
|
|
2228 break;
|
|
|
2229 }
|
|
|
2230
|
|
428
|
2231 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2232
|
|
260
|
2233 if (downstream->data == r) {
|
|
|
2234 if (ngx_handle_write_event(downstream->write, clcf->send_lowat)
|
|
426
|
2235 != NGX_OK)
|
|
132
|
2236 {
|
|
|
2237 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2238 return;
|
|
|
2239 }
|
|
130
|
2240 }
|
|
|
2241
|
|
276
|
2242 if (downstream->write->active && !downstream->write->ready) {
|
|
260
|
2243 ngx_add_timer(downstream->write, clcf->send_timeout);
|
|
|
2244
|
|
|
2245 } else if (downstream->write->timer_set) {
|
|
|
2246 ngx_del_timer(downstream->write);
|
|
130
|
2247 }
|
|
|
2248
|
|
426
|
2249 if (ngx_handle_read_event(upstream->read, 0) != NGX_OK) {
|
|
130
|
2250 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2251 return;
|
|
|
2252 }
|
|
|
2253
|
|
276
|
2254 if (upstream->read->active && !upstream->read->ready) {
|
|
260
|
2255 ngx_add_timer(upstream->read, u->conf->read_timeout);
|
|
|
2256
|
|
|
2257 } else if (upstream->read->timer_set) {
|
|
|
2258 ngx_del_timer(upstream->read);
|
|
130
|
2259 }
|
|
|
2260 }
|
|
|
2261
|
|
|
2262
|
|
|
2263 static ngx_int_t
|
|
|
2264 ngx_http_upstream_non_buffered_filter_init(void *data)
|
|
|
2265 {
|
|
|
2266 return NGX_OK;
|
|
|
2267 }
|
|
|
2268
|
|
|
2269
|
|
|
2270 static ngx_int_t
|
|
|
2271 ngx_http_upstream_non_buffered_filter(void *data, ssize_t bytes)
|
|
|
2272 {
|
|
|
2273 ngx_http_request_t *r = data;
|
|
|
2274
|
|
|
2275 ngx_buf_t *b;
|
|
|
2276 ngx_chain_t *cl, **ll;
|
|
|
2277 ngx_http_upstream_t *u;
|
|
|
2278
|
|
|
2279 u = r->upstream;
|
|
|
2280
|
|
|
2281 for (cl = u->out_bufs, ll = &u->out_bufs; cl; cl = cl->next) {
|
|
|
2282 ll = &cl->next;
|
|
|
2283 }
|
|
|
2284
|
|
|
2285 cl = ngx_chain_get_free_buf(r->pool, &u->free_bufs);
|
|
|
2286 if (cl == NULL) {
|
|
|
2287 return NGX_ERROR;
|
|
|
2288 }
|
|
|
2289
|
|
|
2290 *ll = cl;
|
|
|
2291
|
|
|
2292 cl->buf->flush = 1;
|
|
|
2293 cl->buf->memory = 1;
|
|
|
2294
|
|
|
2295 b = &u->buffer;
|
|
|
2296
|
|
|
2297 cl->buf->pos = b->last;
|
|
|
2298 b->last += bytes;
|
|
|
2299 cl->buf->last = b->last;
|
|
366
|
2300 cl->buf->tag = u->output.tag;
|
|
130
|
2301
|
|
|
2302 if (u->length == NGX_MAX_SIZE_T_VALUE) {
|
|
|
2303 return NGX_OK;
|
|
|
2304 }
|
|
|
2305
|
|
|
2306 u->length -= bytes;
|
|
|
2307
|
|
|
2308 return NGX_OK;
|
|
|
2309 }
|
|
|
2310
|
|
|
2311
|
|
|
2312 static void
|
|
58
|
2313 ngx_http_upstream_process_downstream(ngx_http_request_t *r)
|
|
|
2314 {
|
|
428
|
2315 ngx_event_t *wev;
|
|
|
2316 ngx_connection_t *c;
|
|
58
|
2317 ngx_event_pipe_t *p;
|
|
28
|
2318 ngx_http_upstream_t *u;
|
|
|
2319
|
|
428
|
2320 c = r->connection;
|
|
28
|
2321 u = r->upstream;
|
|
130
|
2322 p = u->pipe;
|
|
428
|
2323 wev = c->write;
|
|
|
2324
|
|
|
2325 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2326 "http upstream process downstream");
|
|
|
2327
|
|
|
2328 c->log->action = "sending to client";
|
|
|
2329
|
|
|
2330 if (wev->timedout) {
|
|
|
2331
|
|
|
2332 if (wev->delayed) {
|
|
|
2333
|
|
|
2334 wev->timedout = 0;
|
|
|
2335 wev->delayed = 0;
|
|
|
2336
|
|
|
2337 if (!wev->ready) {
|
|
|
2338 ngx_add_timer(wev, p->send_timeout);
|
|
|
2339
|
|
|
2340 if (ngx_handle_write_event(wev, p->send_lowat) != NGX_OK) {
|
|
|
2341 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2342 }
|
|
|
2343
|
|
|
2344 return;
|
|
|
2345 }
|
|
|
2346
|
|
|
2347 if (ngx_event_pipe(p, wev->write) == NGX_ABORT) {
|
|
|
2348
|
|
|
2349 if (c->destroyed) {
|
|
76
|
2350 return;
|
|
|
2351 }
|
|
|
2352
|
|
428
|
2353 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2354 return;
|
|
76
|
2355 }
|
|
28
|
2356
|
|
|
2357 } else {
|
|
428
|
2358 p->downstream_error = 1;
|
|
|
2359 c->timedout = 1;
|
|
|
2360 ngx_connection_error(c, NGX_ETIMEDOUT, "client timed out");
|
|
28
|
2361 }
|
|
|
2362
|
|
|
2363 } else {
|
|
428
|
2364
|
|
|
2365 if (wev->delayed) {
|
|
|
2366
|
|
76
|
2367 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2368 "http downstream delayed");
|
|
|
2369
|
|
428
|
2370 if (ngx_handle_write_event(wev, p->send_lowat) != NGX_OK) {
|
|
426
|
2371 ngx_http_upstream_finalize_request(r, u, 0);
|
|
76
|
2372 }
|
|
|
2373
|
|
|
2374 return;
|
|
|
2375 }
|
|
|
2376
|
|
428
|
2377 if (ngx_event_pipe(p, 1) == NGX_ABORT) {
|
|
|
2378
|
|
|
2379 if (c->destroyed) {
|
|
132
|
2380 return;
|
|
|
2381 }
|
|
|
2382
|
|
28
|
2383 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2384 return;
|
|
|
2385 }
|
|
|
2386 }
|
|
126
|
2387
|
|
428
|
2388 ngx_http_upstream_process_request(r);
|
|
|
2389 }
|
|
|
2390
|
|
|
2391
|
|
|
2392 static void
|
|
430
|
2393 ngx_http_upstream_process_upstream(ngx_http_request_t *r,
|
|
|
2394 ngx_http_upstream_t *u)
|
|
428
|
2395 {
|
|
430
|
2396 ngx_connection_t *c;
|
|
|
2397
|
|
|
2398 c = u->peer.connection;
|
|
428
|
2399
|
|
|
2400 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2401 "http upstream process upstream");
|
|
|
2402
|
|
|
2403 c->log->action = "reading upstream";
|
|
|
2404
|
|
430
|
2405 if (c->read->timedout) {
|
|
|
2406 u->pipe->upstream_error = 1;
|
|
428
|
2407 ngx_connection_error(c, NGX_ETIMEDOUT, "upstream timed out");
|
|
|
2408
|
|
|
2409 } else {
|
|
|
2410 c = r->connection;
|
|
|
2411
|
|
430
|
2412 if (ngx_event_pipe(u->pipe, 0) == NGX_ABORT) {
|
|
428
|
2413
|
|
|
2414 if (c->destroyed) {
|
|
|
2415 return;
|
|
|
2416 }
|
|
|
2417
|
|
|
2418 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2419 return;
|
|
|
2420 }
|
|
|
2421 }
|
|
|
2422
|
|
|
2423 ngx_http_upstream_process_request(r);
|
|
|
2424 }
|
|
|
2425
|
|
|
2426
|
|
|
2427 static void
|
|
|
2428 ngx_http_upstream_process_request(ngx_http_request_t *r)
|
|
|
2429 {
|
|
438
|
2430 ngx_uint_t del;
|
|
428
|
2431 ngx_temp_file_t *tf;
|
|
|
2432 ngx_event_pipe_t *p;
|
|
|
2433 ngx_http_upstream_t *u;
|
|
|
2434
|
|
|
2435 u = r->upstream;
|
|
|
2436 p = u->pipe;
|
|
|
2437
|
|
28
|
2438 if (u->peer.connection) {
|
|
|
2439
|
|
318
|
2440 if (u->store) {
|
|
|
2441
|
|
438
|
2442 del = p->upstream_error;
|
|
|
2443
|
|
364
|
2444 tf = u->pipe->temp_file;
|
|
|
2445
|
|
440
|
2446 if (p->upstream_eof || p->upstream_done) {
|
|
438
|
2447
|
|
|
2448 if (u->headers_in.status_n == NGX_HTTP_OK
|
|
|
2449 && (u->headers_in.content_length_n == -1
|
|
|
2450 || (u->headers_in.content_length_n == tf->offset)))
|
|
|
2451 {
|
|
|
2452 ngx_http_upstream_store(r, u);
|
|
|
2453
|
|
|
2454 } else {
|
|
|
2455 del = 1;
|
|
|
2456 }
|
|
|
2457 }
|
|
|
2458
|
|
|
2459 if (del && tf->file.fd != NGX_INVALID_FILE) {
|
|
|
2460
|
|
364
|
2461 if (ngx_delete_file(tf->file.name.data) == NGX_FILE_ERROR) {
|
|
|
2462
|
|
318
|
2463 ngx_log_error(NGX_LOG_CRIT, r->connection->log, ngx_errno,
|
|
|
2464 ngx_delete_file_n " \"%s\" failed",
|
|
|
2465 u->pipe->temp_file->file.name.data);
|
|
|
2466 }
|
|
|
2467 }
|
|
|
2468 }
|
|
|
2469
|
|
464
|
2470 #if (NGX_HTTP_CACHE)
|
|
|
2471
|
|
|
2472 if (u->cacheable) {
|
|
|
2473
|
|
|
2474 if (p->upstream_done) {
|
|
|
2475 ngx_http_file_cache_update(r, u->pipe->temp_file);
|
|
|
2476
|
|
|
2477 } else if (p->upstream_eof) {
|
|
|
2478
|
|
|
2479 /* TODO: check length & update cache */
|
|
|
2480
|
|
|
2481 ngx_http_file_cache_update(r, u->pipe->temp_file);
|
|
|
2482
|
|
|
2483 } else if (p->upstream_error) {
|
|
|
2484 ngx_http_file_cache_free(r, u->pipe->temp_file);
|
|
28
|
2485 }
|
|
|
2486 }
|
|
|
2487
|
|
|
2488 #endif
|
|
|
2489
|
|
|
2490 if (p->upstream_done || p->upstream_eof || p->upstream_error) {
|
|
428
|
2491 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
32
|
2492 "http upstream exit: %p", p->out);
|
|
28
|
2493 #if 0
|
|
|
2494 ngx_http_busy_unlock(u->conf->busy_lock, &u->busy_lock);
|
|
|
2495 #endif
|
|
|
2496 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2497 return;
|
|
|
2498 }
|
|
|
2499 }
|
|
|
2500
|
|
|
2501 if (p->downstream_error) {
|
|
428
|
2502 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
32
|
2503 "http upstream downstream error");
|
|
28
|
2504
|
|
482
|
2505 if (!u->cacheable && !u->store && u->peer.connection) {
|
|
28
|
2506 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2507 }
|
|
|
2508 }
|
|
|
2509 }
|
|
|
2510
|
|
|
2511
|
|
36
|
2512 static void
|
|
318
|
2513 ngx_http_upstream_store(ngx_http_request_t *r, ngx_http_upstream_t *u)
|
|
|
2514 {
|
|
370
|
2515 size_t root;
|
|
|
2516 time_t lm;
|
|
|
2517 ngx_str_t path;
|
|
|
2518 ngx_temp_file_t *tf;
|
|
|
2519 ngx_ext_rename_file_t ext;
|
|
318
|
2520
|
|
358
|
2521 tf = u->pipe->temp_file;
|
|
|
2522
|
|
|
2523 if (tf->file.fd == NGX_INVALID_FILE) {
|
|
318
|
2524
|
|
|
2525 /* create file for empty 200 response */
|
|
|
2526
|
|
|
2527 tf = ngx_pcalloc(r->pool, sizeof(ngx_temp_file_t));
|
|
|
2528 if (tf == NULL) {
|
|
|
2529 return;
|
|
|
2530 }
|
|
|
2531
|
|
|
2532 tf->file.fd = NGX_INVALID_FILE;
|
|
|
2533 tf->file.log = r->connection->log;
|
|
|
2534 tf->path = u->conf->temp_path;
|
|
|
2535 tf->pool = r->pool;
|
|
|
2536 tf->persistent = 1;
|
|
|
2537
|
|
|
2538 if (ngx_create_temp_file(&tf->file, tf->path, tf->pool,
|
|
|
2539 tf->persistent, tf->clean, tf->access)
|
|
|
2540 != NGX_OK)
|
|
|
2541 {
|
|
|
2542 return;
|
|
|
2543 }
|
|
|
2544
|
|
|
2545 u->pipe->temp_file = tf;
|
|
|
2546 }
|
|
|
2547
|
|
370
|
2548 ext.access = u->conf->store_access;
|
|
430
|
2549 ext.path_access = u->conf->store_access;
|
|
370
|
2550 ext.time = -1;
|
|
|
2551 ext.create_path = 1;
|
|
|
2552 ext.delete_file = 1;
|
|
430
|
2553 ext.log_rename_error = 1;
|
|
370
|
2554 ext.log = r->connection->log;
|
|
318
|
2555
|
|
356
|
2556 if (u->headers_in.last_modified) {
|
|
|
2557
|
|
370
|
2558 lm = ngx_http_parse_time(u->headers_in.last_modified->value.data,
|
|
|
2559 u->headers_in.last_modified->value.len);
|
|
318
|
2560
|
|
|
2561 if (lm != NGX_ERROR) {
|
|
370
|
2562 ext.time = lm;
|
|
|
2563 ext.fd = tf->file.fd;
|
|
318
|
2564 }
|
|
|
2565 }
|
|
|
2566
|
|
320
|
2567 if (u->conf->store_lengths == NULL) {
|
|
|
2568
|
|
|
2569 ngx_http_map_uri_to_path(r, &path, &root, 0);
|
|
|
2570
|
|
|
2571 } else {
|
|
|
2572 if (ngx_http_script_run(r, &path, u->conf->store_lengths->elts, 0,
|
|
|
2573 u->conf->store_values->elts)
|
|
|
2574 == NULL)
|
|
|
2575 {
|
|
|
2576 return;
|
|
|
2577 }
|
|
|
2578 }
|
|
318
|
2579
|
|
|
2580 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
370
|
2581 "upstream stores \"%s\" to \"%s\"",
|
|
|
2582 tf->file.name.data, path.data);
|
|
|
2583
|
|
|
2584 (void) ngx_ext_rename_file(&tf->file.name, &path, &ext);
|
|
318
|
2585 }
|
|
|
2586
|
|
|
2587
|
|
|
2588 static void
|
|
430
|
2589 ngx_http_upstream_dummy_handler(ngx_http_request_t *r, ngx_http_upstream_t *u)
|
|
28
|
2590 {
|
|
430
|
2591 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
28
|
2592 "http upstream dummy handler");
|
|
|
2593 }
|
|
|
2594
|
|
|
2595
|
|
36
|
2596 static void
|
|
|
2597 ngx_http_upstream_next(ngx_http_request_t *r, ngx_http_upstream_t *u,
|
|
|
2598 ngx_uint_t ft_type)
|
|
28
|
2599 {
|
|
260
|
2600 ngx_uint_t status, state;
|
|
28
|
2601
|
|
|
2602 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
260
|
2603 "http next upstream, %xi", ft_type);
|
|
28
|
2604
|
|
|
2605 #if 0
|
|
|
2606 ngx_http_busy_unlock(u->conf->busy_lock, &u->busy_lock);
|
|
|
2607 #endif
|
|
|
2608
|
|
74
|
2609 if (ft_type == NGX_HTTP_UPSTREAM_FT_HTTP_404) {
|
|
260
|
2610 state = NGX_PEER_NEXT;
|
|
74
|
2611 } else {
|
|
260
|
2612 state = NGX_PEER_FAILED;
|
|
28
|
2613 }
|
|
74
|
2614
|
|
326
|
2615 if (ft_type != NGX_HTTP_UPSTREAM_FT_NOLIVE) {
|
|
|
2616 u->peer.free(&u->peer, u->peer.data, state);
|
|
|
2617 }
|
|
74
|
2618
|
|
28
|
2619 if (ft_type == NGX_HTTP_UPSTREAM_FT_TIMEOUT) {
|
|
|
2620 ngx_log_error(NGX_LOG_ERR, r->connection->log, NGX_ETIMEDOUT,
|
|
|
2621 "upstream timed out");
|
|
|
2622 }
|
|
126
|
2623
|
|
28
|
2624 if (u->peer.cached && ft_type == NGX_HTTP_UPSTREAM_FT_ERROR) {
|
|
|
2625 status = 0;
|
|
|
2626
|
|
|
2627 } else {
|
|
|
2628 switch(ft_type) {
|
|
|
2629
|
|
|
2630 case NGX_HTTP_UPSTREAM_FT_TIMEOUT:
|
|
|
2631 status = NGX_HTTP_GATEWAY_TIME_OUT;
|
|
|
2632 break;
|
|
|
2633
|
|
|
2634 case NGX_HTTP_UPSTREAM_FT_HTTP_500:
|
|
|
2635 status = NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
2636 break;
|
|
|
2637
|
|
|
2638 case NGX_HTTP_UPSTREAM_FT_HTTP_404:
|
|
|
2639 status = NGX_HTTP_NOT_FOUND;
|
|
|
2640 break;
|
|
|
2641
|
|
|
2642 /*
|
|
|
2643 * NGX_HTTP_UPSTREAM_FT_BUSY_LOCK and NGX_HTTP_UPSTREAM_FT_MAX_WAITING
|
|
|
2644 * never reach here
|
|
|
2645 */
|
|
|
2646
|
|
|
2647 default:
|
|
|
2648 status = NGX_HTTP_BAD_GATEWAY;
|
|
|
2649 }
|
|
|
2650 }
|
|
|
2651
|
|
132
|
2652 if (r->connection->error) {
|
|
28
|
2653 ngx_http_upstream_finalize_request(r, u,
|
|
|
2654 NGX_HTTP_CLIENT_CLOSED_REQUEST);
|
|
|
2655 return;
|
|
|
2656 }
|
|
|
2657
|
|
|
2658 if (status) {
|
|
|
2659 u->state->status = status;
|
|
|
2660
|
|
74
|
2661 if (u->peer.tries == 0 || !(u->conf->next_upstream & ft_type)) {
|
|
28
|
2662
|
|
|
2663 #if (NGX_HTTP_CACHE)
|
|
|
2664
|
|
464
|
2665 if (u->stale_cache && (u->conf->cache_use_stale & ft_type)) {
|
|
486
|
2666 ngx_int_t rc;
|
|
|
2667
|
|
|
2668 rc = u->reinit_request(r);
|
|
|
2669
|
|
|
2670 if (rc == NGX_OK) {
|
|
|
2671 rc = ngx_http_upstream_cache_send(r, u);
|
|
|
2672 }
|
|
|
2673
|
|
|
2674 ngx_http_upstream_finalize_request(r, u, rc);
|
|
28
|
2675 return;
|
|
|
2676 }
|
|
|
2677 #endif
|
|
|
2678
|
|
|
2679 ngx_http_upstream_finalize_request(r, u, status);
|
|
|
2680 return;
|
|
|
2681 }
|
|
|
2682 }
|
|
|
2683
|
|
|
2684 if (u->peer.connection) {
|
|
|
2685 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2686 "close http upstream connection: %d",
|
|
|
2687 u->peer.connection->fd);
|
|
126
|
2688 #if (NGX_HTTP_SSL)
|
|
260
|
2689
|
|
126
|
2690 if (u->peer.connection->ssl) {
|
|
260
|
2691 u->peer.connection->ssl->no_wait_shutdown = 1;
|
|
|
2692 u->peer.connection->ssl->no_send_shutdown = 1;
|
|
|
2693
|
|
|
2694 (void) ngx_ssl_shutdown(u->peer.connection);
|
|
126
|
2695 }
|
|
|
2696 #endif
|
|
260
|
2697
|
|
28
|
2698 ngx_close_connection(u->peer.connection);
|
|
|
2699 }
|
|
|
2700
|
|
|
2701 #if 0
|
|
|
2702 if (u->conf->busy_lock && !u->busy_locked) {
|
|
|
2703 ngx_http_upstream_busy_lock(p);
|
|
|
2704 return;
|
|
|
2705 }
|
|
|
2706 #endif
|
|
|
2707
|
|
|
2708 ngx_http_upstream_connect(r, u);
|
|
|
2709 }
|
|
|
2710
|
|
|
2711
|
|
36
|
2712 static void
|
|
118
|
2713 ngx_http_upstream_cleanup(void *data)
|
|
|
2714 {
|
|
|
2715 ngx_http_request_t *r = data;
|
|
|
2716
|
|
356
|
2717 ngx_http_upstream_t *u;
|
|
|
2718
|
|
118
|
2719 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2720 "cleanup http upstream request: \"%V\"", &r->uri);
|
|
|
2721
|
|
356
|
2722 u = r->upstream;
|
|
|
2723
|
|
|
2724 if (u->resolved && u->resolved->ctx) {
|
|
|
2725 ngx_resolve_name_done(u->resolved->ctx);
|
|
348
|
2726 }
|
|
|
2727
|
|
356
|
2728 ngx_http_upstream_finalize_request(r, u, NGX_DONE);
|
|
118
|
2729 }
|
|
|
2730
|
|
|
2731
|
|
|
2732 static void
|
|
36
|
2733 ngx_http_upstream_finalize_request(ngx_http_request_t *r,
|
|
|
2734 ngx_http_upstream_t *u, ngx_int_t rc)
|
|
28
|
2735 {
|
|
262
|
2736 ngx_time_t *tp;
|
|
112
|
2737
|
|
32
|
2738 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2739 "finalize http upstream request: %i", rc);
|
|
28
|
2740
|
|
432
|
2741 if (u->cleanup) {
|
|
|
2742 *u->cleanup = NULL;
|
|
|
2743 }
|
|
118
|
2744
|
|
348
|
2745 if (u->state && u->state->response_sec) {
|
|
112
|
2746 tp = ngx_timeofday();
|
|
262
|
2747 u->state->response_sec = tp->sec - u->state->response_sec;
|
|
|
2748 u->state->response_msec = tp->msec - u->state->response_msec;
|
|
430
|
2749
|
|
|
2750 if (u->pipe) {
|
|
|
2751 u->state->response_length = u->pipe->read_length;
|
|
|
2752 }
|
|
112
|
2753 }
|
|
|
2754
|
|
28
|
2755 u->finalize_request(r, rc);
|
|
|
2756
|
|
348
|
2757 if (u->peer.free) {
|
|
|
2758 u->peer.free(&u->peer, u->peer.data, 0);
|
|
|
2759 }
|
|
260
|
2760
|
|
28
|
2761 if (u->peer.connection) {
|
|
260
|
2762
|
|
126
|
2763 #if (NGX_HTTP_SSL)
|
|
|
2764
|
|
|
2765 /* TODO: do not shutdown persistent connection */
|
|
|
2766
|
|
|
2767 if (u->peer.connection->ssl) {
|
|
260
|
2768
|
|
|
2769 /*
|
|
|
2770 * We send the "close notify" shutdown alert to the upstream only
|
|
|
2771 * and do not wait its "close notify" shutdown alert.
|
|
|
2772 * It is acceptable according to the TLS standard.
|
|
|
2773 */
|
|
|
2774
|
|
|
2775 u->peer.connection->ssl->no_wait_shutdown = 1;
|
|
|
2776
|
|
|
2777 (void) ngx_ssl_shutdown(u->peer.connection);
|
|
126
|
2778 }
|
|
|
2779 #endif
|
|
260
|
2780
|
|
|
2781 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2782 "close http upstream connection: %d",
|
|
|
2783 u->peer.connection->fd);
|
|
|
2784
|
|
28
|
2785 ngx_close_connection(u->peer.connection);
|
|
|
2786 }
|
|
|
2787
|
|
32
|
2788 u->peer.connection = NULL;
|
|
|
2789
|
|
130
|
2790 if (u->pipe && u->pipe->temp_file) {
|
|
28
|
2791 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2792 "http upstream temp fd: %d",
|
|
130
|
2793 u->pipe->temp_file->file.fd);
|
|
28
|
2794 }
|
|
|
2795
|
|
464
|
2796 #if (NGX_HTTP_CACHE)
|
|
|
2797
|
|
478
|
2798 if (u->cacheable) {
|
|
464
|
2799 time_t valid;
|
|
|
2800
|
|
28
|
2801 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
32
|
2802 "http upstream cache fd: %d",
|
|
464
|
2803 r->cache->file.fd);
|
|
|
2804
|
|
|
2805 if (rc == NGX_HTTP_BAD_GATEWAY || rc == NGX_HTTP_GATEWAY_TIME_OUT) {
|
|
|
2806
|
|
|
2807 valid = ngx_http_file_cache_valid(u->conf->cache_valid, rc);
|
|
|
2808
|
|
|
2809 if (valid) {
|
|
|
2810 r->cache->valid_sec = ngx_time() + valid;
|
|
|
2811 r->cache->error = rc;
|
|
|
2812 }
|
|
|
2813 }
|
|
|
2814
|
|
|
2815 ngx_http_file_cache_free(r, u->pipe->temp_file);
|
|
28
|
2816 }
|
|
464
|
2817
|
|
28
|
2818 #endif
|
|
|
2819
|
|
478
|
2820 if (u->header_sent
|
|
|
2821 && (rc == NGX_ERROR || rc >= NGX_HTTP_SPECIAL_RESPONSE))
|
|
464
|
2822 {
|
|
|
2823 rc = 0;
|
|
|
2824 }
|
|
|
2825
|
|
64
|
2826 if (rc == NGX_DECLINED) {
|
|
|
2827 return;
|
|
|
2828 }
|
|
|
2829
|
|
32
|
2830 r->connection->log->action = "sending to client";
|
|
|
2831
|
|
426
|
2832 if (rc == 0 && r == r->main && !r->post_action) {
|
|
|
2833 rc = ngx_http_send_special(r, NGX_HTTP_LAST);
|
|
28
|
2834 }
|
|
|
2835
|
|
|
2836 ngx_http_finalize_request(r, rc);
|
|
|
2837 }
|
|
|
2838
|
|
|
2839
|
|
58
|
2840 static ngx_int_t
|
|
|
2841 ngx_http_upstream_process_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
2842 ngx_uint_t offset)
|
|
126
|
2843 {
|
|
58
|
2844 ngx_table_elt_t **ph;
|
|
126
|
2845
|
|
58
|
2846 ph = (ngx_table_elt_t **) ((char *) &r->upstream->headers_in + offset);
|
|
|
2847
|
|
|
2848 if (*ph == NULL) {
|
|
|
2849 *ph = h;
|
|
|
2850 }
|
|
|
2851
|
|
|
2852 return NGX_OK;
|
|
|
2853 }
|
|
|
2854
|
|
|
2855
|
|
|
2856 static ngx_int_t
|
|
472
|
2857 ngx_http_upstream_ignore_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
2858 ngx_uint_t offset)
|
|
|
2859 {
|
|
|
2860 return NGX_OK;
|
|
|
2861 }
|
|
|
2862
|
|
|
2863
|
|
|
2864 static ngx_int_t
|
|
|
2865 ngx_http_upstream_process_cache_control(ngx_http_request_t *r,
|
|
58
|
2866 ngx_table_elt_t *h, ngx_uint_t offset)
|
|
|
2867 {
|
|
484
|
2868 ngx_array_t *pa;
|
|
|
2869 ngx_table_elt_t **ph;
|
|
|
2870 ngx_http_upstream_t *u;
|
|
|
2871
|
|
|
2872 u = r->upstream;
|
|
|
2873 pa = &u->headers_in.cache_control;
|
|
58
|
2874
|
|
|
2875 if (pa->elts == NULL) {
|
|
|
2876 if (ngx_array_init(pa, r->pool, 2, sizeof(ngx_table_elt_t *)) != NGX_OK)
|
|
|
2877 {
|
|
|
2878 return NGX_ERROR;
|
|
|
2879 }
|
|
|
2880 }
|
|
|
2881
|
|
|
2882 ph = ngx_array_push(pa);
|
|
|
2883 if (ph == NULL) {
|
|
|
2884 return NGX_ERROR;
|
|
|
2885 }
|
|
|
2886
|
|
|
2887 *ph = h;
|
|
|
2888
|
|
480
|
2889 #if (NGX_HTTP_CACHE)
|
|
|
2890 {
|
|
|
2891 u_char *p, *last;
|
|
|
2892 ngx_int_t n;
|
|
|
2893
|
|
484
|
2894 if (u->conf->ignore_headers & NGX_HTTP_UPSTREAM_IGN_CACHE_CONTROL) {
|
|
|
2895 return NGX_OK;
|
|
|
2896 }
|
|
|
2897
|
|
472
|
2898 if (r->cache == NULL) {
|
|
|
2899 return NGX_OK;
|
|
|
2900 }
|
|
|
2901
|
|
|
2902 if (r->cache->valid_sec != 0) {
|
|
|
2903 return NGX_OK;
|
|
|
2904 }
|
|
|
2905
|
|
|
2906 last = h->value.data + h->value.len;
|
|
|
2907
|
|
|
2908 if (ngx_strlcasestrn(h->value.data, last, (u_char *) "no-cache", 8 - 1)
|
|
|
2909 != NULL)
|
|
|
2910 {
|
|
484
|
2911 u->cacheable = 0;
|
|
472
|
2912 return NGX_OK;
|
|
|
2913 }
|
|
|
2914
|
|
|
2915 p = ngx_strlcasestrn(h->value.data, last, (u_char *) "max-age=", 8 - 1);
|
|
|
2916
|
|
|
2917 if (p == NULL) {
|
|
|
2918 return NGX_OK;
|
|
|
2919 }
|
|
|
2920
|
|
|
2921 n = 0;
|
|
|
2922
|
|
|
2923 for (p += 8; p < last; p++) {
|
|
|
2924 if (*p == ';' || *p == ' ') {
|
|
|
2925 break;
|
|
|
2926 }
|
|
|
2927
|
|
|
2928 if (*p >= '0' && *p <= '9') {
|
|
|
2929 n = n * 10 + *p - '0';
|
|
|
2930 continue;
|
|
|
2931 }
|
|
|
2932
|
|
484
|
2933 u->cacheable = 0;
|
|
472
|
2934 return NGX_OK;
|
|
|
2935 }
|
|
|
2936
|
|
|
2937 if (n == 0) {
|
|
484
|
2938 u->cacheable = 0;
|
|
472
|
2939 return NGX_OK;
|
|
|
2940 }
|
|
|
2941
|
|
|
2942 r->cache->valid_sec = ngx_time() + n;
|
|
480
|
2943 }
|
|
|
2944 #endif
|
|
|
2945
|
|
58
|
2946 return NGX_OK;
|
|
|
2947 }
|
|
|
2948
|
|
|
2949
|
|
|
2950 static ngx_int_t
|
|
472
|
2951 ngx_http_upstream_process_expires(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
58
|
2952 ngx_uint_t offset)
|
|
|
2953 {
|
|
484
|
2954 ngx_http_upstream_t *u;
|
|
|
2955
|
|
|
2956 u = r->upstream;
|
|
|
2957 u->headers_in.expires = h;
|
|
480
|
2958
|
|
|
2959 #if (NGX_HTTP_CACHE)
|
|
|
2960 {
|
|
472
|
2961 time_t expires;
|
|
|
2962
|
|
484
|
2963 if (u->conf->ignore_headers & NGX_HTTP_UPSTREAM_IGN_EXPIRES) {
|
|
|
2964 return NGX_OK;
|
|
|
2965 }
|
|
|
2966
|
|
472
|
2967 if (r->cache == NULL) {
|
|
|
2968 return NGX_OK;
|
|
|
2969 }
|
|
|
2970
|
|
|
2971 if (r->cache->valid_sec != 0) {
|
|
|
2972 return NGX_OK;
|
|
|
2973 }
|
|
|
2974
|
|
|
2975 expires = ngx_http_parse_time(h->value.data, h->value.len);
|
|
|
2976
|
|
|
2977 if (expires == NGX_ERROR || expires < ngx_time()) {
|
|
484
|
2978 u->cacheable = 0;
|
|
472
|
2979 return NGX_OK;
|
|
|
2980 }
|
|
|
2981
|
|
|
2982 r->cache->valid_sec = expires;
|
|
480
|
2983 }
|
|
|
2984 #endif
|
|
472
|
2985
|
|
|
2986 return NGX_OK;
|
|
|
2987 }
|
|
|
2988
|
|
|
2989
|
|
|
2990 static ngx_int_t
|
|
|
2991 ngx_http_upstream_process_accel_expires(ngx_http_request_t *r,
|
|
|
2992 ngx_table_elt_t *h, ngx_uint_t offset)
|
|
|
2993 {
|
|
484
|
2994 ngx_http_upstream_t *u;
|
|
|
2995
|
|
|
2996 u = r->upstream;
|
|
|
2997 u->headers_in.x_accel_expires = h;
|
|
480
|
2998
|
|
|
2999 #if (NGX_HTTP_CACHE)
|
|
|
3000 {
|
|
472
|
3001 u_char *p;
|
|
|
3002 size_t len;
|
|
|
3003 ngx_int_t n;
|
|
|
3004
|
|
484
|
3005 if (u->conf->ignore_headers & NGX_HTTP_UPSTREAM_IGN_XA_EXPIRES) {
|
|
|
3006 return NGX_OK;
|
|
|
3007 }
|
|
|
3008
|
|
472
|
3009 if (r->cache == NULL) {
|
|
|
3010 return NGX_OK;
|
|
|
3011 }
|
|
|
3012
|
|
|
3013 len = h->value.len;
|
|
|
3014 p = h->value.data;
|
|
|
3015
|
|
|
3016 if (p[0] != '@') {
|
|
|
3017 n = ngx_atoi(p, len);
|
|
|
3018
|
|
|
3019 switch (n) {
|
|
|
3020 case 0:
|
|
484
|
3021 u->cacheable = 0;
|
|
472
|
3022 case NGX_ERROR:
|
|
|
3023 return NGX_OK;
|
|
|
3024
|
|
|
3025 default:
|
|
|
3026 r->cache->valid_sec = ngx_time() + n;
|
|
|
3027 return NGX_OK;
|
|
|
3028 }
|
|
|
3029 }
|
|
|
3030
|
|
|
3031 p++;
|
|
|
3032 len--;
|
|
|
3033
|
|
|
3034 n = ngx_atoi(p, len);
|
|
|
3035
|
|
|
3036 if (n != NGX_ERROR) {
|
|
|
3037 r->cache->valid_sec = n;
|
|
|
3038 }
|
|
480
|
3039 }
|
|
|
3040 #endif
|
|
472
|
3041
|
|
58
|
3042 return NGX_OK;
|
|
|
3043 }
|
|
|
3044
|
|
|
3045
|
|
|
3046 static ngx_int_t
|
|
76
|
3047 ngx_http_upstream_process_limit_rate(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
3048 ngx_uint_t offset)
|
|
126
|
3049 {
|
|
76
|
3050 ngx_int_t n;
|
|
|
3051
|
|
|
3052 r->upstream->headers_in.x_accel_limit_rate = h;
|
|
|
3053
|
|
|
3054 n = ngx_atoi(h->value.data, h->value.len);
|
|
|
3055
|
|
|
3056 if (n != NGX_ERROR) {
|
|
|
3057 r->limit_rate = (size_t) n;
|
|
|
3058 }
|
|
|
3059
|
|
|
3060 return NGX_OK;
|
|
|
3061 }
|
|
|
3062
|
|
|
3063
|
|
|
3064 static ngx_int_t
|
|
198
|
3065 ngx_http_upstream_process_buffering(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
3066 ngx_uint_t offset)
|
|
|
3067 {
|
|
|
3068 u_char c0, c1, c2;
|
|
|
3069
|
|
|
3070 if (r->upstream->conf->change_buffering) {
|
|
|
3071
|
|
|
3072 if (h->value.len == 2) {
|
|
|
3073 c0 = ngx_tolower(h->value.data[0]);
|
|
|
3074 c1 = ngx_tolower(h->value.data[1]);
|
|
|
3075
|
|
|
3076 if (c0 == 'n' && c1 == 'o') {
|
|
|
3077 r->upstream->buffering = 0;
|
|
|
3078 }
|
|
|
3079
|
|
|
3080 } else if (h->value.len == 3) {
|
|
|
3081 c0 = ngx_tolower(h->value.data[0]);
|
|
|
3082 c1 = ngx_tolower(h->value.data[1]);
|
|
|
3083 c2 = ngx_tolower(h->value.data[2]);
|
|
|
3084
|
|
|
3085 if (c0 == 'y' && c1 == 'e' && c2 == 's') {
|
|
|
3086 r->upstream->buffering = 1;
|
|
|
3087 }
|
|
|
3088 }
|
|
|
3089 }
|
|
|
3090
|
|
|
3091 return NGX_OK;
|
|
|
3092 }
|
|
|
3093
|
|
|
3094
|
|
|
3095 static ngx_int_t
|
|
206
|
3096 ngx_http_upstream_process_charset(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
3097 ngx_uint_t offset)
|
|
|
3098 {
|
|
|
3099 r->headers_out.override_charset = &h->value;
|
|
|
3100
|
|
|
3101 return NGX_OK;
|
|
|
3102 }
|
|
|
3103
|
|
|
3104
|
|
|
3105 static ngx_int_t
|
|
58
|
3106 ngx_http_upstream_copy_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
3107 ngx_uint_t offset)
|
|
|
3108 {
|
|
122
|
3109 ngx_table_elt_t *ho, **ph;
|
|
58
|
3110
|
|
|
3111 ho = ngx_list_push(&r->headers_out.headers);
|
|
|
3112 if (ho == NULL) {
|
|
|
3113 return NGX_ERROR;
|
|
|
3114 }
|
|
|
3115
|
|
|
3116 *ho = *h;
|
|
|
3117
|
|
122
|
3118 if (offset) {
|
|
|
3119 ph = (ngx_table_elt_t **) ((char *) &r->headers_out + offset);
|
|
|
3120 *ph = ho;
|
|
|
3121 }
|
|
|
3122
|
|
58
|
3123 return NGX_OK;
|
|
|
3124 }
|
|
|
3125
|
|
|
3126
|
|
|
3127 static ngx_int_t
|
|
|
3128 ngx_http_upstream_copy_multi_header_lines(ngx_http_request_t *r,
|
|
|
3129 ngx_table_elt_t *h, ngx_uint_t offset)
|
|
|
3130 {
|
|
|
3131 ngx_array_t *pa;
|
|
|
3132 ngx_table_elt_t *ho, **ph;
|
|
|
3133
|
|
|
3134 pa = (ngx_array_t *) ((char *) &r->headers_out + offset);
|
|
|
3135
|
|
|
3136 if (pa->elts == NULL) {
|
|
|
3137 if (ngx_array_init(pa, r->pool, 2, sizeof(ngx_table_elt_t *)) != NGX_OK)
|
|
|
3138 {
|
|
|
3139 return NGX_ERROR;
|
|
|
3140 }
|
|
|
3141 }
|
|
|
3142
|
|
|
3143 ph = ngx_array_push(pa);
|
|
|
3144 if (ph == NULL) {
|
|
|
3145 return NGX_ERROR;
|
|
|
3146 }
|
|
|
3147
|
|
|
3148 ho = ngx_list_push(&r->headers_out.headers);
|
|
|
3149 if (ho == NULL) {
|
|
|
3150 return NGX_ERROR;
|
|
|
3151 }
|
|
|
3152
|
|
|
3153 *ho = *h;
|
|
|
3154 *ph = ho;
|
|
|
3155
|
|
|
3156 return NGX_OK;
|
|
|
3157 }
|
|
|
3158
|
|
|
3159
|
|
|
3160 static ngx_int_t
|
|
|
3161 ngx_http_upstream_copy_content_type(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
3162 ngx_uint_t offset)
|
|
|
3163 {
|
|
206
|
3164 u_char *p, *last;
|
|
|
3165
|
|
|
3166 r->headers_out.content_type_len = h->value.len;
|
|
58
|
3167 r->headers_out.content_type = h->value;
|
|
|
3168
|
|
206
|
3169 for (p = h->value.data; *p; p++) {
|
|
|
3170
|
|
|
3171 if (*p != ';') {
|
|
|
3172 continue;
|
|
|
3173 }
|
|
|
3174
|
|
|
3175 last = p;
|
|
|
3176
|
|
|
3177 while (*++p == ' ') { /* void */ }
|
|
|
3178
|
|
372
|
3179 if (*p == '\0') {
|
|
|
3180 return NGX_OK;
|
|
|
3181 }
|
|
|
3182
|
|
286
|
3183 if (ngx_strncasecmp(p, (u_char *) "charset=", 8) != 0) {
|
|
206
|
3184 continue;
|
|
|
3185 }
|
|
|
3186
|
|
|
3187 p += 8;
|
|
|
3188
|
|
|
3189 r->headers_out.content_type_len = last - h->value.data;
|
|
|
3190
|
|
410
|
3191 if (*p == '"') {
|
|
|
3192 p++;
|
|
|
3193 }
|
|
|
3194
|
|
|
3195 last = h->value.data + h->value.len;
|
|
|
3196
|
|
|
3197 if (*(last - 1) == '"') {
|
|
|
3198 last--;
|
|
|
3199 }
|
|
|
3200
|
|
|
3201 r->headers_out.charset.len = last - p;
|
|
206
|
3202 r->headers_out.charset.data = p;
|
|
292
|
3203
|
|
|
3204 return NGX_OK;
|
|
206
|
3205 }
|
|
|
3206
|
|
58
|
3207 return NGX_OK;
|
|
|
3208 }
|
|
|
3209
|
|
|
3210
|
|
|
3211 static ngx_int_t
|
|
|
3212 ngx_http_upstream_copy_content_length(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
3213 ngx_uint_t offset)
|
|
|
3214 {
|
|
|
3215 ngx_table_elt_t *ho;
|
|
|
3216
|
|
|
3217 ho = ngx_list_push(&r->headers_out.headers);
|
|
|
3218 if (ho == NULL) {
|
|
|
3219 return NGX_ERROR;
|
|
|
3220 }
|
|
|
3221
|
|
|
3222 *ho = *h;
|
|
|
3223
|
|
|
3224 r->headers_out.content_length = ho;
|
|
|
3225 r->headers_out.content_length_n = ngx_atoof(h->value.data, h->value.len);
|
|
|
3226
|
|
|
3227 return NGX_OK;
|
|
|
3228 }
|
|
|
3229
|
|
|
3230
|
|
|
3231 static ngx_int_t
|
|
464
|
3232 ngx_http_upstream_copy_last_modified(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
3233 ngx_uint_t offset)
|
|
|
3234 {
|
|
|
3235 ngx_table_elt_t *ho;
|
|
|
3236
|
|
|
3237 ho = ngx_list_push(&r->headers_out.headers);
|
|
|
3238 if (ho == NULL) {
|
|
|
3239 return NGX_ERROR;
|
|
|
3240 }
|
|
|
3241
|
|
|
3242 *ho = *h;
|
|
|
3243
|
|
|
3244 #if (NGX_HTTP_CACHE)
|
|
|
3245
|
|
480
|
3246 if (r->cached || r->upstream->cacheable) {
|
|
464
|
3247 r->headers_out.last_modified = ho;
|
|
|
3248 r->headers_out.last_modified_time = ngx_http_parse_time(h->value.data,
|
|
|
3249 h->value.len);
|
|
|
3250 }
|
|
|
3251
|
|
|
3252 #endif
|
|
|
3253
|
|
|
3254 return NGX_OK;
|
|
|
3255 }
|
|
|
3256
|
|
|
3257
|
|
|
3258 static ngx_int_t
|
|
58
|
3259 ngx_http_upstream_rewrite_location(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
3260 ngx_uint_t offset)
|
|
|
3261 {
|
|
|
3262 ngx_int_t rc;
|
|
|
3263 ngx_table_elt_t *ho;
|
|
|
3264
|
|
|
3265 ho = ngx_list_push(&r->headers_out.headers);
|
|
|
3266 if (ho == NULL) {
|
|
|
3267 return NGX_ERROR;
|
|
|
3268 }
|
|
|
3269
|
|
|
3270 *ho = *h;
|
|
|
3271
|
|
|
3272 if (r->upstream->rewrite_redirect) {
|
|
|
3273 rc = r->upstream->rewrite_redirect(r, ho, 0);
|
|
|
3274
|
|
78
|
3275 if (rc == NGX_DECLINED) {
|
|
|
3276 return NGX_OK;
|
|
|
3277 }
|
|
|
3278
|
|
58
|
3279 if (rc == NGX_OK) {
|
|
|
3280 r->headers_out.location = ho;
|
|
|
3281
|
|
|
3282 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
3283 "rewritten location: \"%V\"", &ho->value);
|
|
|
3284 }
|
|
|
3285
|
|
|
3286 return rc;
|
|
|
3287 }
|
|
|
3288
|
|
348
|
3289 if (ho->value.data[0] != '/') {
|
|
|
3290 r->headers_out.location = ho;
|
|
|
3291 }
|
|
|
3292
|
|
58
|
3293 /*
|
|
|
3294 * we do not set r->headers_out.location here to avoid the handling
|
|
|
3295 * the local redirects without a host name by ngx_http_header_filter()
|
|
|
3296 */
|
|
|
3297
|
|
|
3298 return NGX_OK;
|
|
|
3299 }
|
|
|
3300
|
|
|
3301
|
|
|
3302 static ngx_int_t
|
|
|
3303 ngx_http_upstream_rewrite_refresh(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
3304 ngx_uint_t offset)
|
|
|
3305 {
|
|
|
3306 u_char *p;
|
|
|
3307 ngx_int_t rc;
|
|
|
3308 ngx_table_elt_t *ho;
|
|
|
3309
|
|
|
3310 ho = ngx_list_push(&r->headers_out.headers);
|
|
|
3311 if (ho == NULL) {
|
|
|
3312 return NGX_ERROR;
|
|
|
3313 }
|
|
|
3314
|
|
|
3315 *ho = *h;
|
|
|
3316
|
|
|
3317 if (r->upstream->rewrite_redirect) {
|
|
|
3318
|
|
340
|
3319 p = ngx_strcasestrn(ho->value.data, "url=", 4 - 1);
|
|
58
|
3320
|
|
|
3321 if (p) {
|
|
|
3322 rc = r->upstream->rewrite_redirect(r, ho, p + 4 - ho->value.data);
|
|
|
3323
|
|
|
3324 } else {
|
|
|
3325 return NGX_OK;
|
|
|
3326 }
|
|
|
3327
|
|
78
|
3328 if (rc == NGX_DECLINED) {
|
|
|
3329 return NGX_OK;
|
|
|
3330 }
|
|
|
3331
|
|
58
|
3332 if (rc == NGX_OK) {
|
|
348
|
3333 r->headers_out.refresh = ho;
|
|
|
3334
|
|
58
|
3335 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
3336 "rewritten refresh: \"%V\"", &ho->value);
|
|
|
3337 }
|
|
|
3338
|
|
|
3339 return rc;
|
|
|
3340 }
|
|
|
3341
|
|
348
|
3342 r->headers_out.refresh = ho;
|
|
|
3343
|
|
58
|
3344 return NGX_OK;
|
|
|
3345 }
|
|
|
3346
|
|
|
3347
|
|
464
|
3348 static ngx_int_t
|
|
|
3349 ngx_http_upstream_copy_allow_ranges(ngx_http_request_t *r,
|
|
|
3350 ngx_table_elt_t *h, ngx_uint_t offset)
|
|
|
3351 {
|
|
|
3352 ngx_table_elt_t *ho;
|
|
|
3353
|
|
|
3354 #if (NGX_HTTP_CACHE)
|
|
|
3355
|
|
|
3356 if (r->cached) {
|
|
|
3357 r->allow_ranges = 1;
|
|
|
3358 return NGX_OK;
|
|
|
3359
|
|
|
3360 }
|
|
|
3361
|
|
|
3362 #endif
|
|
|
3363
|
|
|
3364 ho = ngx_list_push(&r->headers_out.headers);
|
|
|
3365 if (ho == NULL) {
|
|
|
3366 return NGX_ERROR;
|
|
|
3367 }
|
|
|
3368
|
|
|
3369 *ho = *h;
|
|
|
3370
|
|
|
3371 return NGX_OK;
|
|
|
3372 }
|
|
|
3373
|
|
|
3374
|
|
58
|
3375 #if (NGX_HTTP_GZIP)
|
|
|
3376
|
|
|
3377 static ngx_int_t
|
|
|
3378 ngx_http_upstream_copy_content_encoding(ngx_http_request_t *r,
|
|
|
3379 ngx_table_elt_t *h, ngx_uint_t offset)
|
|
|
3380 {
|
|
|
3381 ngx_table_elt_t *ho;
|
|
|
3382
|
|
|
3383 ho = ngx_list_push(&r->headers_out.headers);
|
|
|
3384 if (ho == NULL) {
|
|
|
3385 return NGX_ERROR;
|
|
|
3386 }
|
|
|
3387
|
|
|
3388 *ho = *h;
|
|
|
3389
|
|
|
3390 r->headers_out.content_encoding = ho;
|
|
|
3391
|
|
|
3392 return NGX_OK;
|
|
|
3393 }
|
|
|
3394
|
|
|
3395 #endif
|
|
|
3396
|
|
|
3397
|
|
36
|
3398 static ngx_int_t
|
|
122
|
3399 ngx_http_upstream_add_variables(ngx_conf_t *cf)
|
|
28
|
3400 {
|
|
260
|
3401 ngx_http_variable_t *var, *v;
|
|
28
|
3402
|
|
122
|
3403 for (v = ngx_http_upstream_vars; v->name.len; v++) {
|
|
|
3404 var = ngx_http_add_variable(cf, &v->name, v->flags);
|
|
|
3405 if (var == NULL) {
|
|
|
3406 return NGX_ERROR;
|
|
|
3407 }
|
|
|
3408
|
|
186
|
3409 var->get_handler = v->get_handler;
|
|
122
|
3410 var->data = v->data;
|
|
|
3411 }
|
|
|
3412
|
|
28
|
3413 return NGX_OK;
|
|
|
3414 }
|
|
58
|
3415
|
|
|
3416
|
|
122
|
3417 static ngx_int_t
|
|
298
|
3418 ngx_http_upstream_addr_variable(ngx_http_request_t *r,
|
|
|
3419 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
3420 {
|
|
|
3421 u_char *p;
|
|
|
3422 size_t len;
|
|
|
3423 ngx_uint_t i;
|
|
|
3424 ngx_http_upstream_state_t *state;
|
|
|
3425
|
|
|
3426 v->valid = 1;
|
|
340
|
3427 v->no_cacheable = 0;
|
|
298
|
3428 v->not_found = 0;
|
|
|
3429
|
|
|
3430 if (r->upstream_states == NULL || r->upstream_states->nelts == 0) {
|
|
|
3431 v->not_found = 1;
|
|
|
3432 return NGX_OK;
|
|
|
3433 }
|
|
|
3434
|
|
|
3435 len = 0;
|
|
|
3436 state = r->upstream_states->elts;
|
|
|
3437
|
|
|
3438 for (i = 0; i < r->upstream_states->nelts; i++) {
|
|
|
3439 if (state[i].peer) {
|
|
|
3440 len += state[i].peer->len + 2;
|
|
|
3441
|
|
|
3442 } else {
|
|
|
3443 len += 3;
|
|
|
3444 }
|
|
|
3445 }
|
|
|
3446
|
|
382
|
3447 p = ngx_pnalloc(r->pool, len);
|
|
298
|
3448 if (p == NULL) {
|
|
|
3449 return NGX_ERROR;
|
|
|
3450 }
|
|
|
3451
|
|
|
3452 v->data = p;
|
|
|
3453
|
|
|
3454 i = 0;
|
|
|
3455
|
|
|
3456 for ( ;; ) {
|
|
|
3457 if (state[i].peer) {
|
|
|
3458 p = ngx_cpymem(p, state[i].peer->data, state[i].peer->len);
|
|
|
3459 }
|
|
|
3460
|
|
|
3461 if (++i == r->upstream_states->nelts) {
|
|
|
3462 break;
|
|
|
3463 }
|
|
|
3464
|
|
|
3465 if (state[i].peer) {
|
|
|
3466 *p++ = ',';
|
|
|
3467 *p++ = ' ';
|
|
|
3468
|
|
|
3469 } else {
|
|
|
3470 *p++ = ' ';
|
|
|
3471 *p++ = ':';
|
|
|
3472 *p++ = ' ';
|
|
|
3473
|
|
|
3474 if (++i == r->upstream_states->nelts) {
|
|
|
3475 break;
|
|
|
3476 }
|
|
|
3477
|
|
|
3478 continue;
|
|
|
3479 }
|
|
|
3480 }
|
|
|
3481
|
|
|
3482 v->len = p - v->data;
|
|
|
3483
|
|
|
3484 return NGX_OK;
|
|
|
3485 }
|
|
|
3486
|
|
|
3487
|
|
|
3488 static ngx_int_t
|
|
122
|
3489 ngx_http_upstream_status_variable(ngx_http_request_t *r,
|
|
|
3490 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
3491 {
|
|
|
3492 u_char *p;
|
|
|
3493 size_t len;
|
|
|
3494 ngx_uint_t i;
|
|
|
3495 ngx_http_upstream_state_t *state;
|
|
|
3496
|
|
|
3497 v->valid = 1;
|
|
340
|
3498 v->no_cacheable = 0;
|
|
122
|
3499 v->not_found = 0;
|
|
|
3500
|
|
296
|
3501 if (r->upstream_states == NULL || r->upstream_states->nelts == 0) {
|
|
122
|
3502 v->not_found = 1;
|
|
|
3503 return NGX_OK;
|
|
|
3504 }
|
|
|
3505
|
|
296
|
3506 len = r->upstream_states->nelts * (3 + 2);
|
|
122
|
3507
|
|
382
|
3508 p = ngx_pnalloc(r->pool, len);
|
|
122
|
3509 if (p == NULL) {
|
|
|
3510 return NGX_ERROR;
|
|
|
3511 }
|
|
|
3512
|
|
|
3513 v->data = p;
|
|
|
3514
|
|
|
3515 i = 0;
|
|
296
|
3516 state = r->upstream_states->elts;
|
|
122
|
3517
|
|
|
3518 for ( ;; ) {
|
|
296
|
3519 if (state[i].status) {
|
|
|
3520 p = ngx_sprintf(p, "%ui", state[i].status);
|
|
122
|
3521
|
|
|
3522 } else {
|
|
296
|
3523 *p++ = '-';
|
|
122
|
3524 }
|
|
|
3525
|
|
296
|
3526 if (++i == r->upstream_states->nelts) {
|
|
122
|
3527 break;
|
|
|
3528 }
|
|
|
3529
|
|
296
|
3530 if (state[i].peer) {
|
|
|
3531 *p++ = ',';
|
|
|
3532 *p++ = ' ';
|
|
|
3533
|
|
|
3534 } else {
|
|
|
3535 *p++ = ' ';
|
|
|
3536 *p++ = ':';
|
|
|
3537 *p++ = ' ';
|
|
|
3538
|
|
|
3539 if (++i == r->upstream_states->nelts) {
|
|
|
3540 break;
|
|
|
3541 }
|
|
|
3542
|
|
|
3543 continue;
|
|
|
3544 }
|
|
122
|
3545 }
|
|
|
3546
|
|
|
3547 v->len = p - v->data;
|
|
|
3548
|
|
|
3549 return NGX_OK;
|
|
|
3550 }
|
|
|
3551
|
|
|
3552
|
|
|
3553 static ngx_int_t
|
|
|
3554 ngx_http_upstream_response_time_variable(ngx_http_request_t *r,
|
|
|
3555 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
3556 {
|
|
|
3557 u_char *p;
|
|
|
3558 size_t len;
|
|
|
3559 ngx_uint_t i;
|
|
262
|
3560 ngx_msec_int_t ms;
|
|
122
|
3561 ngx_http_upstream_state_t *state;
|
|
|
3562
|
|
|
3563 v->valid = 1;
|
|
340
|
3564 v->no_cacheable = 0;
|
|
122
|
3565 v->not_found = 0;
|
|
|
3566
|
|
296
|
3567 if (r->upstream_states == NULL || r->upstream_states->nelts == 0) {
|
|
122
|
3568 v->not_found = 1;
|
|
|
3569 return NGX_OK;
|
|
|
3570 }
|
|
|
3571
|
|
296
|
3572 len = r->upstream_states->nelts * (NGX_TIME_T_LEN + 4 + 2);
|
|
122
|
3573
|
|
382
|
3574 p = ngx_pnalloc(r->pool, len);
|
|
122
|
3575 if (p == NULL) {
|
|
|
3576 return NGX_ERROR;
|
|
|
3577 }
|
|
|
3578
|
|
|
3579 v->data = p;
|
|
|
3580
|
|
|
3581 i = 0;
|
|
296
|
3582 state = r->upstream_states->elts;
|
|
122
|
3583
|
|
|
3584 for ( ;; ) {
|
|
296
|
3585 if (state[i].status) {
|
|
346
|
3586 ms = (ngx_msec_int_t)
|
|
|
3587 (state[i].response_sec * 1000 + state[i].response_msec);
|
|
262
|
3588 ms = (ms >= 0) ? ms : 0;
|
|
|
3589 p = ngx_sprintf(p, "%d.%03d", ms / 1000, ms % 1000);
|
|
296
|
3590
|
|
|
3591 } else {
|
|
|
3592 *p++ = '-';
|
|
122
|
3593 }
|
|
|
3594
|
|
296
|
3595 if (++i == r->upstream_states->nelts) {
|
|
122
|
3596 break;
|
|
|
3597 }
|
|
|
3598
|
|
296
|
3599 if (state[i].peer) {
|
|
|
3600 *p++ = ',';
|
|
|
3601 *p++ = ' ';
|
|
|
3602
|
|
|
3603 } else {
|
|
|
3604 *p++ = ' ';
|
|
|
3605 *p++ = ':';
|
|
|
3606 *p++ = ' ';
|
|
|
3607
|
|
|
3608 if (++i == r->upstream_states->nelts) {
|
|
|
3609 break;
|
|
|
3610 }
|
|
|
3611
|
|
|
3612 continue;
|
|
|
3613 }
|
|
122
|
3614 }
|
|
|
3615
|
|
|
3616 v->len = p - v->data;
|
|
|
3617
|
|
|
3618 return NGX_OK;
|
|
|
3619 }
|
|
|
3620
|
|
|
3621
|
|
430
|
3622 static ngx_int_t
|
|
|
3623 ngx_http_upstream_response_length_variable(ngx_http_request_t *r,
|
|
|
3624 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
3625 {
|
|
|
3626 u_char *p;
|
|
|
3627 size_t len;
|
|
|
3628 ngx_uint_t i;
|
|
|
3629 ngx_http_upstream_state_t *state;
|
|
|
3630
|
|
|
3631 v->valid = 1;
|
|
|
3632 v->no_cacheable = 0;
|
|
|
3633 v->not_found = 0;
|
|
|
3634
|
|
|
3635 if (r->upstream_states == NULL || r->upstream_states->nelts == 0) {
|
|
|
3636 v->not_found = 1;
|
|
|
3637 return NGX_OK;
|
|
|
3638 }
|
|
|
3639
|
|
|
3640 len = r->upstream_states->nelts * (NGX_OFF_T_LEN + 2);
|
|
|
3641
|
|
|
3642 p = ngx_pnalloc(r->pool, len);
|
|
|
3643 if (p == NULL) {
|
|
|
3644 return NGX_ERROR;
|
|
|
3645 }
|
|
|
3646
|
|
|
3647 v->data = p;
|
|
|
3648
|
|
|
3649 i = 0;
|
|
|
3650 state = r->upstream_states->elts;
|
|
|
3651
|
|
|
3652 for ( ;; ) {
|
|
|
3653 p = ngx_sprintf(p, "%O", state[i].response_length);
|
|
|
3654
|
|
|
3655 if (++i == r->upstream_states->nelts) {
|
|
|
3656 break;
|
|
|
3657 }
|
|
|
3658
|
|
|
3659 if (state[i].peer) {
|
|
|
3660 *p++ = ',';
|
|
|
3661 *p++ = ' ';
|
|
|
3662
|
|
|
3663 } else {
|
|
|
3664 *p++ = ' ';
|
|
|
3665 *p++ = ':';
|
|
|
3666 *p++ = ' ';
|
|
|
3667
|
|
|
3668 if (++i == r->upstream_states->nelts) {
|
|
|
3669 break;
|
|
|
3670 }
|
|
|
3671
|
|
|
3672 continue;
|
|
|
3673 }
|
|
|
3674 }
|
|
|
3675
|
|
|
3676 v->len = p - v->data;
|
|
|
3677
|
|
|
3678 return NGX_OK;
|
|
|
3679 }
|
|
|
3680
|
|
|
3681
|
|
296
|
3682 ngx_int_t
|
|
|
3683 ngx_http_upstream_header_variable(ngx_http_request_t *r,
|
|
|
3684 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
3685 {
|
|
|
3686 if (r->upstream == NULL) {
|
|
|
3687 v->not_found = 1;
|
|
|
3688 return NGX_OK;
|
|
|
3689 }
|
|
|
3690
|
|
|
3691 return ngx_http_variable_unknown_header(v, (ngx_str_t *) data,
|
|
|
3692 &r->upstream->headers_in.headers.part,
|
|
|
3693 sizeof("upstream_http_") - 1);
|
|
|
3694 }
|
|
|
3695
|
|
|
3696
|
|
200
|
3697 static char *
|
|
|
3698 ngx_http_upstream(ngx_conf_t *cf, ngx_command_t *cmd, void *dummy)
|
|
|
3699 {
|
|
260
|
3700 char *rv;
|
|
|
3701 void *mconf;
|
|
|
3702 ngx_str_t *value;
|
|
|
3703 ngx_url_t u;
|
|
|
3704 ngx_uint_t m;
|
|
|
3705 ngx_conf_t pcf;
|
|
|
3706 ngx_http_module_t *module;
|
|
|
3707 ngx_http_conf_ctx_t *ctx, *http_ctx;
|
|
|
3708 ngx_http_upstream_srv_conf_t *uscf;
|
|
|
3709
|
|
|
3710 ngx_memzero(&u, sizeof(ngx_url_t));
|
|
|
3711
|
|
|
3712 value = cf->args->elts;
|
|
|
3713 u.host = value[1];
|
|
|
3714 u.no_resolve = 1;
|
|
|
3715
|
|
|
3716 uscf = ngx_http_upstream_add(cf, &u, NGX_HTTP_UPSTREAM_CREATE
|
|
|
3717 |NGX_HTTP_UPSTREAM_WEIGHT
|
|
|
3718 |NGX_HTTP_UPSTREAM_MAX_FAILS
|
|
|
3719 |NGX_HTTP_UPSTREAM_FAIL_TIMEOUT
|
|
|
3720 |NGX_HTTP_UPSTREAM_DOWN
|
|
|
3721 |NGX_HTTP_UPSTREAM_BACKUP);
|
|
|
3722 if (uscf == NULL) {
|
|
|
3723 return NGX_CONF_ERROR;
|
|
|
3724 }
|
|
|
3725
|
|
200
|
3726
|
|
|
3727 ctx = ngx_pcalloc(cf->pool, sizeof(ngx_http_conf_ctx_t));
|
|
|
3728 if (ctx == NULL) {
|
|
|
3729 return NGX_CONF_ERROR;
|
|
|
3730 }
|
|
|
3731
|
|
260
|
3732 http_ctx = cf->ctx;
|
|
|
3733 ctx->main_conf = http_ctx->main_conf;
|
|
200
|
3734
|
|
|
3735 /* the upstream{}'s srv_conf */
|
|
|
3736
|
|
|
3737 ctx->srv_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module);
|
|
|
3738 if (ctx->srv_conf == NULL) {
|
|
|
3739 return NGX_CONF_ERROR;
|
|
|
3740 }
|
|
|
3741
|
|
|
3742 ctx->srv_conf[ngx_http_upstream_module.ctx_index] = uscf;
|
|
|
3743
|
|
260
|
3744 uscf->srv_conf = ctx->srv_conf;
|
|
|
3745
|
|
200
|
3746
|
|
|
3747 /* the upstream{}'s loc_conf */
|
|
|
3748
|
|
|
3749 ctx->loc_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module);
|
|
|
3750 if (ctx->loc_conf == NULL) {
|
|
|
3751 return NGX_CONF_ERROR;
|
|
|
3752 }
|
|
|
3753
|
|
|
3754 for (m = 0; ngx_modules[m]; m++) {
|
|
|
3755 if (ngx_modules[m]->type != NGX_HTTP_MODULE) {
|
|
|
3756 continue;
|
|
|
3757 }
|
|
|
3758
|
|
|
3759 module = ngx_modules[m]->ctx;
|
|
|
3760
|
|
260
|
3761 if (module->create_srv_conf) {
|
|
|
3762 mconf = module->create_srv_conf(cf);
|
|
|
3763 if (mconf == NULL) {
|
|
|
3764 return NGX_CONF_ERROR;
|
|
|
3765 }
|
|
|
3766
|
|
|
3767 ctx->srv_conf[ngx_modules[m]->ctx_index] = mconf;
|
|
|
3768 }
|
|
|
3769
|
|
200
|
3770 if (module->create_loc_conf) {
|
|
|
3771 mconf = module->create_loc_conf(cf);
|
|
|
3772 if (mconf == NULL) {
|
|
|
3773 return NGX_CONF_ERROR;
|
|
|
3774 }
|
|
|
3775
|
|
|
3776 ctx->loc_conf[ngx_modules[m]->ctx_index] = mconf;
|
|
|
3777 }
|
|
|
3778 }
|
|
|
3779
|
|
|
3780
|
|
|
3781 /* parse inside upstream{} */
|
|
|
3782
|
|
|
3783 pcf = *cf;
|
|
|
3784 cf->ctx = ctx;
|
|
|
3785 cf->cmd_type = NGX_HTTP_UPS_CONF;
|
|
|
3786
|
|
|
3787 rv = ngx_conf_parse(cf, NULL);
|
|
|
3788
|
|
|
3789 *cf = pcf;
|
|
|
3790
|
|
|
3791 if (rv != NGX_CONF_OK) {
|
|
|
3792 return rv;
|
|
|
3793 }
|
|
|
3794
|
|
|
3795 if (uscf->servers == NULL) {
|
|
|
3796 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
3797 "no servers are inside upstream");
|
|
|
3798 return NGX_CONF_ERROR;
|
|
|
3799 }
|
|
|
3800
|
|
|
3801 return rv;
|
|
|
3802 }
|
|
|
3803
|
|
|
3804
|
|
|
3805 static char *
|
|
|
3806 ngx_http_upstream_server(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
3807 {
|
|
|
3808 ngx_http_upstream_srv_conf_t *uscf = conf;
|
|
|
3809
|
|
260
|
3810 time_t fail_timeout;
|
|
|
3811 ngx_str_t *value, s;
|
|
|
3812 ngx_url_t u;
|
|
|
3813 ngx_int_t weight, max_fails;
|
|
|
3814 ngx_uint_t i;
|
|
|
3815 ngx_http_upstream_server_t *us;
|
|
200
|
3816
|
|
|
3817 if (uscf->servers == NULL) {
|
|
260
|
3818 uscf->servers = ngx_array_create(cf->pool, 4,
|
|
|
3819 sizeof(ngx_http_upstream_server_t));
|
|
200
|
3820 if (uscf->servers == NULL) {
|
|
|
3821 return NGX_CONF_ERROR;
|
|
|
3822 }
|
|
|
3823 }
|
|
|
3824
|
|
260
|
3825 us = ngx_array_push(uscf->servers);
|
|
|
3826 if (us == NULL) {
|
|
200
|
3827 return NGX_CONF_ERROR;
|
|
|
3828 }
|
|
|
3829
|
|
260
|
3830 ngx_memzero(us, sizeof(ngx_http_upstream_server_t));
|
|
|
3831
|
|
200
|
3832 value = cf->args->elts;
|
|
|
3833
|
|
|
3834 ngx_memzero(&u, sizeof(ngx_url_t));
|
|
|
3835
|
|
|
3836 u.url = value[1];
|
|
266
|
3837 u.default_port = 80;
|
|
200
|
3838
|
|
340
|
3839 if (ngx_parse_url(cf->pool, &u) != NGX_OK) {
|
|
200
|
3840 if (u.err) {
|
|
|
3841 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
3842 "%s in upstream \"%V\"", u.err, &u.url);
|
|
|
3843 }
|
|
|
3844
|
|
|
3845 return NGX_CONF_ERROR;
|
|
|
3846 }
|
|
|
3847
|
|
212
|
3848 weight = 1;
|
|
260
|
3849 max_fails = 1;
|
|
|
3850 fail_timeout = 10;
|
|
|
3851
|
|
|
3852 for (i = 2; i < cf->args->nelts; i++) {
|
|
|
3853
|
|
|
3854 if (ngx_strncmp(value[i].data, "weight=", 7) == 0) {
|
|
|
3855
|
|
|
3856 if (!(uscf->flags & NGX_HTTP_UPSTREAM_WEIGHT)) {
|
|
|
3857 goto invalid;
|
|
|
3858 }
|
|
|
3859
|
|
|
3860 weight = ngx_atoi(&value[i].data[7], value[i].len - 7);
|
|
212
|
3861
|
|
|
3862 if (weight == NGX_ERROR || weight == 0) {
|
|
|
3863 goto invalid;
|
|
|
3864 }
|
|
|
3865
|
|
260
|
3866 continue;
|
|
|
3867 }
|
|
|
3868
|
|
|
3869 if (ngx_strncmp(value[i].data, "max_fails=", 10) == 0) {
|
|
|
3870
|
|
|
3871 if (!(uscf->flags & NGX_HTTP_UPSTREAM_MAX_FAILS)) {
|
|
|
3872 goto invalid;
|
|
|
3873 }
|
|
|
3874
|
|
|
3875 max_fails = ngx_atoi(&value[i].data[10], value[i].len - 10);
|
|
|
3876
|
|
|
3877 if (max_fails == NGX_ERROR) {
|
|
|
3878 goto invalid;
|
|
|
3879 }
|
|
|
3880
|
|
|
3881 continue;
|
|
212
|
3882 }
|
|
260
|
3883
|
|
|
3884 if (ngx_strncmp(value[i].data, "fail_timeout=", 13) == 0) {
|
|
|
3885
|
|
|
3886 if (!(uscf->flags & NGX_HTTP_UPSTREAM_FAIL_TIMEOUT)) {
|
|
|
3887 goto invalid;
|
|
|
3888 }
|
|
|
3889
|
|
|
3890 s.len = value[i].len - 13;
|
|
|
3891 s.data = &value[i].data[13];
|
|
|
3892
|
|
|
3893 fail_timeout = ngx_parse_time(&s, 1);
|
|
|
3894
|
|
372
|
3895 if (fail_timeout == NGX_ERROR) {
|
|
260
|
3896 goto invalid;
|
|
|
3897 }
|
|
|
3898
|
|
|
3899 continue;
|
|
|
3900 }
|
|
|
3901
|
|
326
|
3902 if (ngx_strncmp(value[i].data, "backup", 6) == 0) {
|
|
|
3903
|
|
|
3904 if (!(uscf->flags & NGX_HTTP_UPSTREAM_BACKUP)) {
|
|
|
3905 goto invalid;
|
|
|
3906 }
|
|
|
3907
|
|
|
3908 us->backup = 1;
|
|
|
3909
|
|
|
3910 continue;
|
|
|
3911 }
|
|
|
3912
|
|
260
|
3913 if (ngx_strncmp(value[i].data, "down", 4) == 0) {
|
|
|
3914
|
|
|
3915 if (!(uscf->flags & NGX_HTTP_UPSTREAM_DOWN)) {
|
|
|
3916 goto invalid;
|
|
|
3917 }
|
|
|
3918
|
|
|
3919 us->down = 1;
|
|
|
3920
|
|
|
3921 continue;
|
|
|
3922 }
|
|
|
3923
|
|
|
3924 goto invalid;
|
|
212
|
3925 }
|
|
|
3926
|
|
260
|
3927 us->addrs = u.addrs;
|
|
|
3928 us->naddrs = u.naddrs;
|
|
|
3929 us->weight = weight;
|
|
|
3930 us->max_fails = max_fails;
|
|
|
3931 us->fail_timeout = fail_timeout;
|
|
200
|
3932
|
|
|
3933 return NGX_CONF_OK;
|
|
212
|
3934
|
|
|
3935 invalid:
|
|
|
3936
|
|
260
|
3937 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
3938 "invalid parameter \"%V\"", &value[i]);
|
|
212
|
3939
|
|
|
3940 return NGX_CONF_ERROR;
|
|
200
|
3941 }
|
|
|
3942
|
|
|
3943
|
|
|
3944 ngx_http_upstream_srv_conf_t *
|
|
260
|
3945 ngx_http_upstream_add(ngx_conf_t *cf, ngx_url_t *u, ngx_uint_t flags)
|
|
200
|
3946 {
|
|
|
3947 ngx_uint_t i;
|
|
260
|
3948 ngx_http_upstream_server_t *us;
|
|
200
|
3949 ngx_http_upstream_srv_conf_t *uscf, **uscfp;
|
|
|
3950 ngx_http_upstream_main_conf_t *umcf;
|
|
|
3951
|
|
260
|
3952 if (!(flags & NGX_HTTP_UPSTREAM_CREATE)) {
|
|
|
3953
|
|
340
|
3954 if (ngx_parse_url(cf->pool, u) != NGX_OK) {
|
|
200
|
3955 if (u->err) {
|
|
|
3956 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
3957 "%s in upstream \"%V\"", u->err, &u->url);
|
|
|
3958 }
|
|
|
3959
|
|
|
3960 return NULL;
|
|
|
3961 }
|
|
|
3962 }
|
|
|
3963
|
|
|
3964 umcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_upstream_module);
|
|
|
3965
|
|
|
3966 uscfp = umcf->upstreams.elts;
|
|
|
3967
|
|
|
3968 for (i = 0; i < umcf->upstreams.nelts; i++) {
|
|
266
|
3969
|
|
|
3970 if (uscfp[i]->host.len != u->host.len
|
|
260
|
3971 || ngx_strncasecmp(uscfp[i]->host.data, u->host.data, u->host.len)
|
|
|
3972 != 0)
|
|
|
3973 {
|
|
200
|
3974 continue;
|
|
|
3975 }
|
|
|
3976
|
|
260
|
3977 if ((flags & NGX_HTTP_UPSTREAM_CREATE)
|
|
|
3978 && (uscfp[i]->flags & NGX_HTTP_UPSTREAM_CREATE))
|
|
200
|
3979 {
|
|
260
|
3980 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
3981 "duplicate upstream \"%V\"", &u->host);
|
|
|
3982 return NULL;
|
|
200
|
3983 }
|
|
260
|
3984
|
|
266
|
3985 if ((uscfp[i]->flags & NGX_HTTP_UPSTREAM_CREATE) && u->port) {
|
|
260
|
3986 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
|
|
266
|
3987 "upstream \"%V\" may not have port %d",
|
|
|
3988 &u->host, u->port);
|
|
|
3989 return NULL;
|
|
|
3990 }
|
|
|
3991
|
|
|
3992 if ((flags & NGX_HTTP_UPSTREAM_CREATE) && uscfp[i]->port) {
|
|
|
3993 ngx_log_error(NGX_LOG_WARN, cf->log, 0,
|
|
|
3994 "upstream \"%V\" may not have port %d in %s:%ui",
|
|
|
3995 &u->host, uscfp[i]->port,
|
|
336
|
3996 uscfp[i]->file_name, uscfp[i]->line);
|
|
266
|
3997 return NULL;
|
|
|
3998 }
|
|
|
3999
|
|
|
4000 if (uscfp[i]->port != u->port) {
|
|
|
4001 continue;
|
|
260
|
4002 }
|
|
|
4003
|
|
324
|
4004 if (uscfp[i]->default_port && u->default_port
|
|
|
4005 && uscfp[i]->default_port != u->default_port)
|
|
|
4006 {
|
|
|
4007 continue;
|
|
|
4008 }
|
|
|
4009
|
|
260
|
4010 return uscfp[i];
|
|
200
|
4011 }
|
|
|
4012
|
|
|
4013 uscf = ngx_pcalloc(cf->pool, sizeof(ngx_http_upstream_srv_conf_t));
|
|
|
4014 if (uscf == NULL) {
|
|
|
4015 return NULL;
|
|
|
4016 }
|
|
|
4017
|
|
260
|
4018 uscf->flags = flags;
|
|
200
|
4019 uscf->host = u->host;
|
|
336
|
4020 uscf->file_name = cf->conf_file->file.name.data;
|
|
200
|
4021 uscf->line = cf->conf_file->line;
|
|
266
|
4022 uscf->port = u->port;
|
|
|
4023 uscf->default_port = u->default_port;
|
|
260
|
4024
|
|
|
4025 if (u->naddrs == 1) {
|
|
|
4026 uscf->servers = ngx_array_create(cf->pool, 1,
|
|
|
4027 sizeof(ngx_http_upstream_server_t));
|
|
|
4028 if (uscf->servers == NULL) {
|
|
|
4029 return NGX_CONF_ERROR;
|
|
|
4030 }
|
|
|
4031
|
|
|
4032 us = ngx_array_push(uscf->servers);
|
|
|
4033 if (us == NULL) {
|
|
|
4034 return NGX_CONF_ERROR;
|
|
|
4035 }
|
|
|
4036
|
|
|
4037 ngx_memzero(us, sizeof(ngx_http_upstream_server_t));
|
|
|
4038
|
|
|
4039 us->addrs = u->addrs;
|
|
|
4040 us->naddrs = u->naddrs;
|
|
|
4041 }
|
|
200
|
4042
|
|
|
4043 uscfp = ngx_array_push(&umcf->upstreams);
|
|
|
4044 if (uscfp == NULL) {
|
|
|
4045 return NULL;
|
|
|
4046 }
|
|
|
4047
|
|
|
4048 *uscfp = uscf;
|
|
|
4049
|
|
|
4050 return uscf;
|
|
|
4051 }
|
|
|
4052
|
|
|
4053
|
|
356
|
4054 ngx_int_t
|
|
|
4055 ngx_http_upstream_hide_headers_hash(ngx_conf_t *cf,
|
|
|
4056 ngx_http_upstream_conf_t *conf, ngx_http_upstream_conf_t *prev,
|
|
|
4057 ngx_str_t *default_hide_headers, ngx_hash_init_t *hash)
|
|
|
4058 {
|
|
|
4059 ngx_str_t *h;
|
|
|
4060 ngx_uint_t i, j;
|
|
|
4061 ngx_array_t hide_headers;
|
|
|
4062 ngx_hash_key_t *hk;
|
|
|
4063
|
|
|
4064 if (conf->hide_headers == NGX_CONF_UNSET_PTR
|
|
|
4065 && conf->pass_headers == NGX_CONF_UNSET_PTR)
|
|
|
4066 {
|
|
|
4067 conf->hide_headers_hash = prev->hide_headers_hash;
|
|
|
4068
|
|
|
4069 if (conf->hide_headers_hash.buckets) {
|
|
|
4070 return NGX_OK;
|
|
|
4071 }
|
|
|
4072
|
|
|
4073 conf->hide_headers = prev->hide_headers;
|
|
|
4074 conf->pass_headers = prev->pass_headers;
|
|
|
4075
|
|
|
4076 } else {
|
|
|
4077 if (conf->hide_headers == NGX_CONF_UNSET_PTR) {
|
|
|
4078 conf->hide_headers = prev->hide_headers;
|
|
|
4079 }
|
|
|
4080
|
|
|
4081 if (conf->pass_headers == NGX_CONF_UNSET_PTR) {
|
|
|
4082 conf->pass_headers = prev->pass_headers;
|
|
|
4083 }
|
|
|
4084 }
|
|
|
4085
|
|
|
4086 if (ngx_array_init(&hide_headers, cf->temp_pool, 4, sizeof(ngx_hash_key_t))
|
|
|
4087 != NGX_OK)
|
|
|
4088 {
|
|
|
4089 return NGX_ERROR;
|
|
|
4090 }
|
|
|
4091
|
|
|
4092 for (h = default_hide_headers; h->len; h++) {
|
|
|
4093 hk = ngx_array_push(&hide_headers);
|
|
|
4094 if (hk == NULL) {
|
|
|
4095 return NGX_ERROR;
|
|
|
4096 }
|
|
|
4097
|
|
|
4098 hk->key = *h;
|
|
|
4099 hk->key_hash = ngx_hash_key_lc(h->data, h->len);
|
|
|
4100 hk->value = (void *) 1;
|
|
|
4101 }
|
|
|
4102
|
|
|
4103 if (conf->hide_headers != NGX_CONF_UNSET_PTR) {
|
|
|
4104
|
|
|
4105 h = conf->hide_headers->elts;
|
|
|
4106
|
|
|
4107 for (i = 0; i < conf->hide_headers->nelts; i++) {
|
|
|
4108
|
|
|
4109 hk = hide_headers.elts;
|
|
|
4110
|
|
|
4111 for (j = 0; j < hide_headers.nelts; j++) {
|
|
|
4112 if (ngx_strcasecmp(h[i].data, hk[j].key.data) == 0) {
|
|
|
4113 goto exist;
|
|
|
4114 }
|
|
|
4115 }
|
|
|
4116
|
|
|
4117 hk = ngx_array_push(&hide_headers);
|
|
|
4118 if (hk == NULL) {
|
|
|
4119 return NGX_ERROR;
|
|
|
4120 }
|
|
|
4121
|
|
|
4122 hk->key = h[i];
|
|
|
4123 hk->key_hash = ngx_hash_key_lc(h[i].data, h[i].len);
|
|
|
4124 hk->value = (void *) 1;
|
|
|
4125
|
|
|
4126 exist:
|
|
|
4127
|
|
|
4128 continue;
|
|
|
4129 }
|
|
|
4130 }
|
|
|
4131
|
|
|
4132 if (conf->pass_headers != NGX_CONF_UNSET_PTR) {
|
|
|
4133
|
|
|
4134 h = conf->pass_headers->elts;
|
|
|
4135 hk = hide_headers.elts;
|
|
|
4136
|
|
|
4137 for (i = 0; i < conf->pass_headers->nelts; i++) {
|
|
|
4138 for (j = 0; j < hide_headers.nelts; j++) {
|
|
|
4139
|
|
|
4140 if (hk[j].key.data == NULL) {
|
|
|
4141 continue;
|
|
|
4142 }
|
|
|
4143
|
|
|
4144 if (ngx_strcasecmp(h[i].data, hk[j].key.data) == 0) {
|
|
|
4145 hk[j].key.data = NULL;
|
|
|
4146 break;
|
|
|
4147 }
|
|
|
4148 }
|
|
|
4149 }
|
|
|
4150 }
|
|
|
4151
|
|
|
4152 hash->hash = &conf->hide_headers_hash;
|
|
|
4153 hash->key = ngx_hash_key_lc;
|
|
|
4154 hash->pool = cf->pool;
|
|
|
4155 hash->temp_pool = NULL;
|
|
|
4156
|
|
|
4157 return ngx_hash_init(hash, hide_headers.elts, hide_headers.nelts);
|
|
|
4158 }
|
|
|
4159
|
|
|
4160
|
|
58
|
4161 static void *
|
|
|
4162 ngx_http_upstream_create_main_conf(ngx_conf_t *cf)
|
|
|
4163 {
|
|
|
4164 ngx_http_upstream_main_conf_t *umcf;
|
|
|
4165
|
|
|
4166 umcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_upstream_main_conf_t));
|
|
|
4167 if (umcf == NULL) {
|
|
|
4168 return NULL;
|
|
|
4169 }
|
|
|
4170
|
|
200
|
4171 if (ngx_array_init(&umcf->upstreams, cf->pool, 4,
|
|
|
4172 sizeof(ngx_http_upstream_srv_conf_t *))
|
|
|
4173 != NGX_OK)
|
|
|
4174 {
|
|
|
4175 return NGX_CONF_ERROR;
|
|
|
4176 }
|
|
|
4177
|
|
58
|
4178 return umcf;
|
|
|
4179 }
|
|
|
4180
|
|
|
4181
|
|
|
4182 static char *
|
|
200
|
4183 ngx_http_upstream_init_main_conf(ngx_conf_t *cf, void *conf)
|
|
58
|
4184 {
|
|
|
4185 ngx_http_upstream_main_conf_t *umcf = conf;
|
|
|
4186
|
|
200
|
4187 ngx_uint_t i;
|
|
|
4188 ngx_array_t headers_in;
|
|
|
4189 ngx_hash_key_t *hk;
|
|
|
4190 ngx_hash_init_t hash;
|
|
260
|
4191 ngx_http_upstream_init_pt init;
|
|
200
|
4192 ngx_http_upstream_header_t *header;
|
|
|
4193 ngx_http_upstream_srv_conf_t **uscfp;
|
|
|
4194
|
|
|
4195 uscfp = umcf->upstreams.elts;
|
|
|
4196
|
|
|
4197 for (i = 0; i < umcf->upstreams.nelts; i++) {
|
|
260
|
4198
|
|
|
4199 init = uscfp[i]->peer.init_upstream ? uscfp[i]->peer.init_upstream:
|
|
|
4200 ngx_http_upstream_init_round_robin;
|
|
|
4201
|
|
|
4202 if (init(cf, uscfp[i]) != NGX_OK) {
|
|
200
|
4203 return NGX_CONF_ERROR;
|
|
|
4204 }
|
|
|
4205 }
|
|
198
|
4206
|
|
212
|
4207
|
|
260
|
4208 /* upstream_headers_in_hash */
|
|
|
4209
|
|
198
|
4210 if (ngx_array_init(&headers_in, cf->temp_pool, 32, sizeof(ngx_hash_key_t))
|
|
|
4211 != NGX_OK)
|
|
58
|
4212 {
|
|
|
4213 return NGX_CONF_ERROR;
|
|
|
4214 }
|
|
|
4215
|
|
198
|
4216 for (header = ngx_http_upstream_headers_in; header->name.len; header++) {
|
|
|
4217 hk = ngx_array_push(&headers_in);
|
|
|
4218 if (hk == NULL) {
|
|
|
4219 return NGX_CONF_ERROR;
|
|
|
4220 }
|
|
|
4221
|
|
|
4222 hk->key = header->name;
|
|
|
4223 hk->key_hash = ngx_hash_key_lc(header->name.data, header->name.len);
|
|
|
4224 hk->value = header;
|
|
|
4225 }
|
|
|
4226
|
|
|
4227 hash.hash = &umcf->headers_in_hash;
|
|
|
4228 hash.key = ngx_hash_key_lc;
|
|
|
4229 hash.max_size = 512;
|
|
244
|
4230 hash.bucket_size = ngx_align(64, ngx_cacheline_size);
|
|
198
|
4231 hash.name = "upstream_headers_in_hash";
|
|
|
4232 hash.pool = cf->pool;
|
|
|
4233 hash.temp_pool = NULL;
|
|
|
4234
|
|
|
4235 if (ngx_hash_init(&hash, headers_in.elts, headers_in.nelts) != NGX_OK) {
|
|
|
4236 return NGX_CONF_ERROR;
|
|
|
4237 }
|
|
58
|
4238
|
|
|
4239 return NGX_CONF_OK;
|
|
|
4240 }
|
